diff options
| author | Ulf Samuelsson <ulf.samuelsson@atmel.com> | 2007-10-12 15:10:27 +0000 |
|---|---|---|
| committer | Ulf Samuelsson <ulf.samuelsson@atmel.com> | 2007-10-12 15:10:27 +0000 |
| commit | 022b1041523e218a44b75bec783dfd2f0d5371df (patch) | |
| tree | 71fe681a269954dcdff70692de990b9f3d84aea9 /target/device/Atmel/arch-avr32/kernel-patches-2.6.22.10/linux-2.6.22.10-100-avr32-atmel.4.patch | |
| parent | 103832204dd8e5e48c17a4a2a0adee735235f5c3 (diff) | |
| download | buildroot-novena-022b1041523e218a44b75bec783dfd2f0d5371df.tar.gz buildroot-novena-022b1041523e218a44b75bec783dfd2f0d5371df.zip | |
Add 2.6.22.10 and 2.6.23 support
Diffstat (limited to 'target/device/Atmel/arch-avr32/kernel-patches-2.6.22.10/linux-2.6.22.10-100-avr32-atmel.4.patch')
| -rw-r--r-- | target/device/Atmel/arch-avr32/kernel-patches-2.6.22.10/linux-2.6.22.10-100-avr32-atmel.4.patch | 16955 |
1 files changed, 16955 insertions, 0 deletions
diff --git a/target/device/Atmel/arch-avr32/kernel-patches-2.6.22.10/linux-2.6.22.10-100-avr32-atmel.4.patch b/target/device/Atmel/arch-avr32/kernel-patches-2.6.22.10/linux-2.6.22.10-100-avr32-atmel.4.patch new file mode 100644 index 000000000..1881a419c --- /dev/null +++ b/target/device/Atmel/arch-avr32/kernel-patches-2.6.22.10/linux-2.6.22.10-100-avr32-atmel.4.patch @@ -0,0 +1,16955 @@ +diff --git a/MAINTAINERS b/MAINTAINERS +index df40a4e..3c5cfef 100644 +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -674,6 +674,13 @@ P: Haavard Skinnemoen + M: hskinnemoen@atmel.com + S: Supported + ++ATMEL USBA UDC DRIVER ++P: Haavard Skinnemoen ++M: hskinnemoen@atmel.com ++L: kernel@avr32linux.org ++W: http://avr32linux.org/twiki/bin/view/Main/AtmelUsbDeviceDriver ++S: Supported ++ + ATMEL WIRELESS DRIVER + P: Simon Kelley + M: simon@thekelleys.org.uk +diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig +index 3ec7658..ec6c7c5 100644 +--- a/arch/avr32/Kconfig ++++ b/arch/avr32/Kconfig +@@ -113,6 +113,13 @@ config BOARD_ATNGW100 + bool "ATNGW100 Network Gateway" + endchoice + ++if BOARD_ATSTK1000 ++source "arch/avr32/boards/atstk1000/Kconfig" ++endif ++if BOARD_ATNGW100 ++source "arch/avr32/boards/atngw100/Kconfig" ++endif ++ + choice + prompt "Boot loader type" + default LOADER_U_BOOT +@@ -171,6 +178,10 @@ config OWNERSHIP_TRACE + enabling Nexus-compliant debuggers to keep track of the PID of the + currently executing task. + ++config DW_DMAC ++ tristate "Synopsys DesignWare DMA Controller support" ++ default y if CPU_AT32AP7000 ++ + # FPU emulation goes here + + source "kernel/Kconfig.hz" +@@ -185,6 +196,27 @@ config CMDLINE + + endmenu + ++menu "Power managment options" ++ ++menu "CPU Frequency scaling" ++ ++source "drivers/cpufreq/Kconfig" ++ ++config CPU_FREQ_AT32AP ++ bool "CPU frequency driver for AT32AP" ++ depends on CPU_FREQ && PLATFORM_AT32AP ++ default n ++ help ++ This enables the CPU frequency driver for AT32AP processors. ++ ++ For details, take a look in <file:Documentation/cpu-freq>. ++ ++ If in doubt, say N. ++ ++endmenu ++ ++endmenu ++ + menu "Bus options" + + config PCI +diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile +index dc6bc01..eb72198 100644 +--- a/arch/avr32/Makefile ++++ b/arch/avr32/Makefile +@@ -31,6 +31,7 @@ core-$(CONFIG_BOARD_ATNGW100) += arch/avr32/boards/atngw100/ + core-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/ + core-y += arch/avr32/kernel/ + core-y += arch/avr32/mm/ ++drivers-y += arch/avr32/drivers/ + libs-y += arch/avr32/lib/ + + archincdir-$(CONFIG_PLATFORM_AT32AP) := arch-at32ap +diff --git a/arch/avr32/boards/atngw100/Kconfig b/arch/avr32/boards/atngw100/Kconfig +new file mode 100644 +index 0000000..5d922df +--- /dev/null ++++ b/arch/avr32/boards/atngw100/Kconfig +@@ -0,0 +1,12 @@ ++# NGW100 customization ++ ++config BOARD_ATNGW100_I2C_GPIO ++ bool "Use GPIO for i2c instead of built-in TWI module" ++ help ++ The driver for the built-in TWI module has been plagued by ++ various problems, while the i2c-gpio driver is based on the ++ trusty old i2c-algo-bit bitbanging engine, making it work ++ on pretty much any setup. ++ ++ Choose 'Y' here if you're having i2c-related problems and ++ want to rule out the i2c bus driver. +diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c +index 6c4dc0a..d649974 100644 +--- a/arch/avr32/boards/atngw100/setup.c ++++ b/arch/avr32/boards/atngw100/setup.c +@@ -9,10 +9,12 @@ + */ + #include <linux/clk.h> + #include <linux/etherdevice.h> ++#include <linux/i2c-gpio.h> + #include <linux/init.h> + #include <linux/linkage.h> + #include <linux/platform_device.h> + #include <linux/types.h> ++#include <linux/leds.h> + #include <linux/spi/spi.h> + + #include <asm/io.h> +@@ -21,6 +23,7 @@ + #include <asm/arch/at32ap7000.h> + #include <asm/arch/board.h> + #include <asm/arch/init.h> ++#include <asm/arch/portmux.h> + + /* Initialized by bootloader-specific startup code. */ + struct tag *bootloader_tags __initdata; +@@ -39,6 +42,11 @@ static struct spi_board_info spi0_board_info[] __initdata = { + }, + }; + ++static struct mci_platform_data __initdata mci0_data = { ++ .detect_pin = GPIO_PIN_PC(25), ++ .wp_pin = GPIO_PIN_PE(0), ++}; ++ + /* + * The next two functions should go away as the boot loader is + * supposed to initialize the macb address registers with a valid +@@ -100,8 +108,46 @@ void __init setup_board(void) + at32_setup_serial_console(0); + } + ++static const struct gpio_led ngw_leds[] = { ++ { .name = "sys", .gpio = GPIO_PIN_PA(16), .active_low = 1, ++ .default_trigger = "heartbeat", ++ }, ++ { .name = "a", .gpio = GPIO_PIN_PA(19), .active_low = 1, }, ++ { .name = "b", .gpio = GPIO_PIN_PE(19), .active_low = 1, }, ++}; ++ ++static const struct gpio_led_platform_data ngw_led_data = { ++ .num_leds = ARRAY_SIZE(ngw_leds), ++ .leds = (void *) ngw_leds, ++}; ++ ++static struct platform_device ngw_gpio_leds = { ++ .name = "leds-gpio", ++ .id = -1, ++ .dev = { ++ .platform_data = (void *) &ngw_led_data, ++ } ++}; ++ ++#ifdef CONFIG_BOARD_ATNGW100_I2C_GPIO ++static struct i2c_gpio_platform_data i2c_gpio_data = { ++ .sda_pin = GPIO_PIN_PA(6), ++ .scl_pin = GPIO_PIN_PA(7), ++}; ++ ++static struct platform_device i2c_gpio_device = { ++ .name = "i2c-gpio", ++ .id = 0, ++ .dev = { ++ .platform_data = &i2c_gpio_data, ++ }, ++}; ++#endif ++ + static int __init atngw100_init(void) + { ++ unsigned i; ++ + /* + * ATNGW100 uses 16-bit SDRAM interface, so we don't need to + * reserve any pins for it. +@@ -115,6 +161,22 @@ static int __init atngw100_init(void) + set_hw_addr(at32_add_device_eth(1, ð_data[1])); + + at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); ++ at32_add_device_mci(0, &mci0_data); ++ at32_add_device_usba(0, NULL); ++ ++ for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) { ++ at32_select_gpio(ngw_leds[i].gpio, ++ AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); ++ } ++ platform_device_register(&ngw_gpio_leds); ++ ++#ifdef CONFIG_BOARD_ATNGW100_I2C_GPIO ++ at32_select_gpio(i2c_gpio_data.sda_pin, 0); ++ at32_select_gpio(i2c_gpio_data.scl_pin, 0); ++ platform_device_register(&i2c_gpio_device); ++#else ++ at32_add_device_twi(0); ++#endif + + return 0; + } +diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig +new file mode 100644 +index 0000000..b1f5a62 +--- /dev/null ++++ b/arch/avr32/boards/atstk1000/Kconfig +@@ -0,0 +1,91 @@ ++# STK1000 customization ++ ++if BOARD_ATSTK1002 ++ ++config BOARD_ATSTK1002_CUSTOM ++ bool "Non-default STK-1002 jumper settings" ++ help ++ You will normally leave the jumpers on the CPU card at their ++ default settings. If you need to use certain peripherals, ++ you will need to change some of those jumpers. ++ ++if BOARD_ATSTK1002_CUSTOM ++ ++config BOARD_ATSTK1002_SW1_CUSTOM ++ bool "SW1: use SSC1 (not SPI0)" ++ help ++ This also prevents using the external DAC as an audio interface, ++ and means you can't initialize the on-board QVGA display. ++ ++config BOARD_ATSTK1002_SW2_CUSTOM ++ bool "SW2: use IRDA or TIMER0 (not UART-A, MMC/SD, and PS2-A)" ++ help ++ If you change this you'll want an updated boot loader putting ++ the console on UART-C not UART-A. ++ ++config BOARD_ATSTK1002_SW3_CUSTOM ++ bool "SW3: use TIMER1 (not SSC0 and GCLK)" ++ help ++ This also prevents using the external DAC as an audio interface. ++ ++config BOARD_ATSTK1002_SW4_CUSTOM ++ bool "SW4: use ISI/Camera (not GPIOs, SPI1, and PS2-B)" ++ help ++ To use the camera interface you'll need a custom card (on the ++ PCI-format connector) connect a video sensor. ++ ++config BOARD_ATSTK1002_SW5_CUSTOM ++ bool "SW5: use MACB1 (not LCDC)" ++ ++config BOARD_ATSTK1002_SW6_CUSTOM ++ bool "SW6: more GPIOs (not MACB0)" ++ ++endif # custom ++ ++config BOARD_ATSTK1002_SPI1 ++ bool "Configure SPI1 controller" ++ depends on !BOARD_ATSTK1002_SW4_CUSTOM ++ help ++ All the signals for the second SPI controller are available on ++ GPIO lines and accessed through the J1 jumper block. Say "y" ++ here to configure that SPI controller. ++ ++config BOARD_ATSTK1002_J2_LED ++ bool ++ default BOARD_ATSTK1002_J2_LED8 || BOARD_ATSTK1002_J2_RGB ++ ++choice ++ prompt "LEDs connected to J2:" ++ depends on LEDS_GPIO && !BOARD_ATSTK1002_SW4_CUSTOM ++ optional ++ help ++ Select this if you have jumpered the J2 jumper block to the ++ LED0..LED7 amber leds, or to the RGB leds, using a ten-pin ++ IDC cable. A default "heartbeat" trigger is provided, but ++ you can of course override this. ++ ++config BOARD_ATSTK1002_J2_LED8 ++ bool "LED0..LED7" ++ help ++ Select this if J2 is jumpered to LED0..LED7 amber leds. ++ ++config BOARD_ATSTK1002_J2_RGB ++ bool "RGB leds" ++ help ++ Select this if J2 is jumpered to the RGB leds. ++ ++endchoice ++ ++config BOARD_ATSTK1002_ENABLE_AC97 ++ bool "Use AC97C instead of ABDAC" ++ help ++ Select this if you want to use the built-in AC97 controller ++ instead of the built-in Audio Bitstream DAC. These share ++ the same I/O pins on the AP7000, so both can't be enabled ++ at the same time. ++ ++ Note that the STK1000/STK1002 kit doesn't ship with an AC97 ++ codec on board, so say N unless you've got an expansion ++ board with an AC97 codec on it that you want to use. ++ ++endif # stk 1002 +diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c +index e253e86..9a0f875 100644 +--- a/arch/avr32/boards/atstk1000/atstk1002.c ++++ b/arch/avr32/boards/atstk1000/atstk1002.c +@@ -11,10 +11,12 @@ + #include <linux/etherdevice.h> + #include <linux/init.h> + #include <linux/kernel.h> ++#include <linux/leds.h> + #include <linux/platform_device.h> + #include <linux/string.h> + #include <linux/types.h> + #include <linux/spi/spi.h> ++#include <linux/spi/at73c213.h> + + #include <video/atmel_lcdc.h> + +@@ -27,16 +29,47 @@ + + #include "atstk1000.h" + +-#define SW2_DEFAULT /* MMCI and UART_A available */ + + struct eth_addr { + u8 addr[6]; + }; + + static struct eth_addr __initdata hw_addr[2]; +-static struct eth_platform_data __initdata eth_data[2]; ++static struct eth_platform_data __initdata eth_data[2] = { ++ { ++ /* ++ * The MDIO pullups on STK1000 are a bit too weak for ++ * the autodetection to work properly, so we have to ++ * mask out everything but the correct address. ++ */ ++ .phy_mask = ~(1U << 16), ++ }, ++ { ++ .phy_mask = ~(1U << 17), ++ }, ++}; ++ ++#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM ++#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM ++static struct at73c213_board_info at73c213_data = { ++ .ssc_id = 0, ++ .shortname = "AVR32 STK1000 external DAC", ++}; ++#endif ++#endif + ++#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM + static struct spi_board_info spi0_board_info[] __initdata = { ++#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM ++ { ++ /* AT73C213 */ ++ .modalias = "at73c213", ++ .max_speed_hz = 200000, ++ .chip_select = 0, ++ .mode = SPI_MODE_1, ++ .platform_data = &at73c213_data, ++ }, ++#endif + { + /* QVGA display */ + .modalias = "ltv350qv", +@@ -45,6 +78,18 @@ static struct spi_board_info spi0_board_info[] __initdata = { + .mode = SPI_MODE_3, + }, + }; ++#endif ++ ++#ifdef CONFIG_BOARD_ATSTK1002_SPI1 ++static struct spi_board_info spi1_board_info[] __initdata = { { ++ /* patch in custom entries here */ ++} }; ++#endif ++ ++static struct mci_platform_data __initdata mci0_data = { ++ .detect_pin = GPIO_PIN_NONE, ++ .wp_pin = GPIO_PIN_NONE, ++}; + + /* + * The next two functions should go away as the boot loader is +@@ -101,12 +146,103 @@ static void __init set_hw_addr(struct platform_device *pdev) + clk_put(pclk); + } + +-void __init setup_board(void) ++#ifdef CONFIG_BOARD_ATSTK1002_J2_LED ++ ++static struct gpio_led stk_j2_led[] = { ++#ifdef CONFIG_BOARD_ATSTK1002_J2_LED8 ++#define LEDSTRING "J2 jumpered to LED8" ++ { .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), }, ++ { .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), }, ++ { .name = "led2:amber", .gpio = GPIO_PIN_PB(10), }, ++ { .name = "led3:amber", .gpio = GPIO_PIN_PB(13), }, ++ { .name = "led4:amber", .gpio = GPIO_PIN_PB(14), }, ++ { .name = "led5:amber", .gpio = GPIO_PIN_PB(15), }, ++ { .name = "led6:amber", .gpio = GPIO_PIN_PB(16), }, ++ { .name = "led7:amber", .gpio = GPIO_PIN_PB(30), ++ .default_trigger = "heartbeat", }, ++#else /* RGB */ ++#define LEDSTRING "J2 jumpered to RGB LEDs" ++ { .name = "r1:red", .gpio = GPIO_PIN_PB( 8), }, ++ { .name = "g1:green", .gpio = GPIO_PIN_PB(10), }, ++ { .name = "b1:blue", .gpio = GPIO_PIN_PB(14), }, ++ ++ { .name = "r2:red", .gpio = GPIO_PIN_PB( 9), ++ .default_trigger = "heartbeat", }, ++ { .name = "g2:green", .gpio = GPIO_PIN_PB(13), }, ++ { .name = "b2:blue", .gpio = GPIO_PIN_PB(15), ++ .default_trigger = "heartbeat", }, ++ /* PB16, PB30 unused */ ++#endif ++}; ++ ++static struct gpio_led_platform_data stk_j2_led_data = { ++ .num_leds = ARRAY_SIZE(stk_j2_led), ++ .leds = stk_j2_led, ++}; ++ ++static struct platform_device stk_j2_led_dev = { ++ .name = "leds-gpio", ++ .id = 2, /* gpio block J2 */ ++ .dev = { ++ .platform_data = &stk_j2_led_data, ++ }, ++}; ++ ++static void setup_j2_leds(void) + { +-#ifdef SW2_DEFAULT +- at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */ ++ unsigned i; ++ ++ for (i = 0; i < ARRAY_SIZE(stk_j2_led); i++) ++ at32_select_gpio(stk_j2_led[i].gpio, AT32_GPIOF_OUTPUT); ++ ++ printk("STK1002: " LEDSTRING "\n"); ++ platform_device_register(&stk_j2_led_dev); ++} ++ + #else ++static void setup_j2_leds(void) ++{ ++} ++#endif ++ ++#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM ++#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM ++static void __init at73c213_set_clk(struct at73c213_board_info *info) ++{ ++ struct clk *gclk; ++ struct clk *pll; ++ ++ gclk = clk_get(NULL, "gclk0"); ++ if (IS_ERR(gclk)) ++ goto err_gclk; ++ pll = clk_get(NULL, "pll0"); ++ if (IS_ERR(pll)) ++ goto err_pll; ++ ++ if (clk_set_parent(gclk, pll)) { ++ pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n"); ++ goto err_set_clk; ++ } ++ ++ at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0); ++ info->dac_clk = gclk; ++ ++err_set_clk: ++ clk_put(pll); ++err_pll: ++ clk_put(gclk); ++err_gclk: ++ return; ++} ++#endif ++#endif ++ ++void __init setup_board(void) ++{ ++#ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM + at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */ ++#else ++ at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */ + #endif + /* USART 2/unused: expansion connector */ + at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */ +@@ -140,18 +276,50 @@ static int __init atstk1002_init(void) + + at32_add_system_devices(); + +-#ifdef SW2_DEFAULT +- at32_add_device_usart(0); +-#else ++#ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM + at32_add_device_usart(1); ++#else ++ at32_add_device_usart(0); + #endif + at32_add_device_usart(2); + ++#ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM + set_hw_addr(at32_add_device_eth(0, ð_data[0])); +- +- at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); ++#endif ++#ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM ++ set_hw_addr(at32_add_device_eth(1, ð_data[1])); ++#else + at32_add_device_lcdc(0, &atstk1000_lcdc_data, + fbmem_start, fbmem_size); ++#endif ++ ++#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM ++ at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); ++#endif ++#ifdef CONFIG_BOARD_ATSTK1002_SPI1 ++ at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info)); ++#endif ++ at32_add_device_twi(0); ++#ifndef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM ++ at32_add_device_mci(0, &mci0_data); ++#endif ++ at32_add_device_usba(0, NULL); ++#ifdef CONFIG_BOARD_ATSTK1002_ENABLE_AC97 ++ at32_add_device_ac97c(0); ++#else ++ at32_add_device_abdac(0); ++#endif ++#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM ++ at32_add_device_ssc(0, ATMEL_SSC_TX); ++#endif ++ ++ setup_j2_leds(); ++ ++#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM ++#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM ++ at73c213_set_clk(&at73c213_data); ++#endif ++#endif + + return 0; + } +diff --git a/arch/avr32/configs/atngw100_defconfig b/arch/avr32/configs/atngw100_defconfig +index 49493ad..adce168 100644 +--- a/arch/avr32/configs/atngw100_defconfig ++++ b/arch/avr32/configs/atngw100_defconfig +@@ -1,7 +1,7 @@ + # + # Automatically generated make config: don't edit +-# Linux kernel version: 2.6.22-rc5 +-# Sat Jun 23 15:40:05 2007 ++# Linux kernel version: 2.6.22.atmel.1 ++# Thu Jul 12 17:49:20 2007 + # + CONFIG_AVR32=y + CONFIG_GENERIC_GPIO=y +@@ -114,6 +114,7 @@ CONFIG_PLATFORM_AT32AP=y + CONFIG_CPU_AT32AP7000=y + # CONFIG_BOARD_ATSTK1000 is not set + CONFIG_BOARD_ATNGW100=y ++# CONFIG_BOARD_ATNGW100_I2C_GPIO is not set + CONFIG_LOADER_U_BOOT=y + + # +@@ -122,6 +123,7 @@ CONFIG_LOADER_U_BOOT=y + # CONFIG_AP7000_32_BIT_SMC is not set + CONFIG_AP7000_16_BIT_SMC=y + # CONFIG_AP7000_8_BIT_SMC is not set ++CONFIG_GPIO_DEV=y + CONFIG_LOAD_ADDRESS=0x10000000 + CONFIG_ENTRY_ADDRESS=0x90000000 + CONFIG_PHYS_OFFSET=0x10000000 +@@ -145,6 +147,7 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 + # CONFIG_RESOURCES_64BIT is not set + CONFIG_ZONE_DMA_FLAG=0 + # CONFIG_OWNERSHIP_TRACE is not set ++CONFIG_DW_DMAC=y + # CONFIG_HZ_100 is not set + CONFIG_HZ_250=y + # CONFIG_HZ_300 is not set +@@ -153,6 +156,27 @@ CONFIG_HZ=250 + CONFIG_CMDLINE="" + + # ++# Power managment options ++# ++ ++# ++# CPU Frequency scaling ++# ++CONFIG_CPU_FREQ=y ++CONFIG_CPU_FREQ_TABLE=y ++# CONFIG_CPU_FREQ_DEBUG is not set ++CONFIG_CPU_FREQ_STAT=m ++# CONFIG_CPU_FREQ_STAT_DETAILS is not set ++CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y ++# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set ++CONFIG_CPU_FREQ_GOV_PERFORMANCE=y ++CONFIG_CPU_FREQ_GOV_POWERSAVE=y ++CONFIG_CPU_FREQ_GOV_USERSPACE=y ++CONFIG_CPU_FREQ_GOV_ONDEMAND=y ++# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set ++CONFIG_CPU_FREQ_AT32AP=y ++ ++# + # Bus options + # + # CONFIG_ARCH_SUPPORTS_MSI is not set +@@ -187,13 +211,8 @@ CONFIG_NET_KEY=y + # CONFIG_NET_KEY_MIGRATE is not set + CONFIG_INET=y + CONFIG_IP_MULTICAST=y +-CONFIG_IP_ADVANCED_ROUTER=y +-CONFIG_ASK_IP_FIB_HASH=y +-# CONFIG_IP_FIB_TRIE is not set ++# CONFIG_IP_ADVANCED_ROUTER is not set + CONFIG_IP_FIB_HASH=y +-# CONFIG_IP_MULTIPLE_TABLES is not set +-# CONFIG_IP_ROUTE_MULTIPATH is not set +-# CONFIG_IP_ROUTE_VERBOSE is not set + CONFIG_IP_PNP=y + CONFIG_IP_PNP_DHCP=y + # CONFIG_IP_PNP_BOOTP is not set +@@ -240,6 +259,7 @@ CONFIG_IPV6_SIT=y + # CONFIG_NETWORK_SECMARK is not set + CONFIG_NETFILTER=y + # CONFIG_NETFILTER_DEBUG is not set ++CONFIG_BRIDGE_NETFILTER=y + + # + # Core Netfilter Configuration +@@ -284,6 +304,7 @@ CONFIG_NETFILTER_XT_MATCH_MAC=m + CONFIG_NETFILTER_XT_MATCH_MARK=m + CONFIG_NETFILTER_XT_MATCH_POLICY=m + CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m ++# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set + CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m + CONFIG_NETFILTER_XT_MATCH_QUOTA=m + CONFIG_NETFILTER_XT_MATCH_REALM=m +@@ -359,13 +380,19 @@ CONFIG_IP6_NF_TARGET_REJECT=m + CONFIG_IP6_NF_MANGLE=m + CONFIG_IP6_NF_TARGET_HL=m + CONFIG_IP6_NF_RAW=m ++ ++# ++# Bridge: Netfilter Configuration ++# ++# CONFIG_BRIDGE_NF_EBTABLES is not set + # CONFIG_IP_DCCP is not set + # CONFIG_IP_SCTP is not set + # CONFIG_TIPC is not set + # CONFIG_ATM is not set +-# CONFIG_BRIDGE is not set ++CONFIG_BRIDGE=m + CONFIG_VLAN_8021Q=m + # CONFIG_DECNET is not set ++CONFIG_LLC=m + # CONFIG_LLC2 is not set + # CONFIG_IPX is not set + # CONFIG_ATALK is not set +@@ -521,7 +548,6 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 + # + # Misc devices + # +-# CONFIG_BLINK is not set + # CONFIG_IDE is not set + + # +@@ -545,13 +571,26 @@ CONFIG_NETDEVICES=y + # CONFIG_BONDING is not set + # CONFIG_EQUALIZER is not set + CONFIG_TUN=m +-# CONFIG_PHYLIB is not set ++CONFIG_PHYLIB=y ++ ++# ++# MII PHY device drivers ++# ++# CONFIG_MARVELL_PHY is not set ++# CONFIG_DAVICOM_PHY is not set ++# CONFIG_QSEMI_PHY is not set ++# CONFIG_LXT_PHY is not set ++# CONFIG_CICADA_PHY is not set ++# CONFIG_VITESSE_PHY is not set ++# CONFIG_SMSC_PHY is not set ++# CONFIG_BROADCOM_PHY is not set ++# CONFIG_FIXED_PHY is not set + + # + # Ethernet (10 or 100Mbit) + # + CONFIG_NET_ETHERNET=y +-CONFIG_MII=y ++# CONFIG_MII is not set + CONFIG_MACB=y + # CONFIG_NETDEV_1000 is not set + # CONFIG_NETDEV_10000 is not set +@@ -625,7 +664,15 @@ CONFIG_UNIX98_PTYS=y + # IPMI + # + # CONFIG_IPMI_HANDLER is not set +-# CONFIG_WATCHDOG is not set ++CONFIG_WATCHDOG=y ++# CONFIG_WATCHDOG_NOWAYOUT is not set ++ ++# ++# Watchdog Device Drivers ++# ++# CONFIG_SOFT_WATCHDOG is not set ++CONFIG_AT32AP700X_WDT=y ++CONFIG_AT32AP700X_WDT_TIMEOUT=2 + # CONFIG_HW_RANDOM is not set + # CONFIG_RTC is not set + # CONFIG_GEN_RTC is not set +@@ -636,7 +683,42 @@ CONFIG_UNIX98_PTYS=y + # TPM devices + # + # CONFIG_TCG_TPM is not set +-# CONFIG_I2C is not set ++CONFIG_I2C=m ++CONFIG_I2C_BOARDINFO=y ++CONFIG_I2C_CHARDEV=m ++ ++# ++# I2C Algorithms ++# ++CONFIG_I2C_ALGOBIT=m ++# CONFIG_I2C_ALGOPCF is not set ++# CONFIG_I2C_ALGOPCA is not set ++ ++# ++# I2C Hardware Bus support ++# ++CONFIG_I2C_ATMELTWI=m ++CONFIG_I2C_ATMELTWI_BAUDRATE=100000 ++CONFIG_I2C_GPIO=m ++# CONFIG_I2C_OCORES is not set ++# CONFIG_I2C_PARPORT_LIGHT is not set ++# CONFIG_I2C_SIMTEC is not set ++# CONFIG_I2C_STUB is not set ++ ++# ++# Miscellaneous I2C Chip support ++# ++# CONFIG_SENSORS_DS1337 is not set ++# CONFIG_SENSORS_DS1374 is not set ++# CONFIG_SENSORS_EEPROM is not set ++# CONFIG_SENSORS_PCF8574 is not set ++# CONFIG_SENSORS_PCA9539 is not set ++# CONFIG_SENSORS_PCF8591 is not set ++# CONFIG_SENSORS_MAX6875 is not set ++# CONFIG_I2C_DEBUG_CORE is not set ++# CONFIG_I2C_DEBUG_ALGO is not set ++# CONFIG_I2C_DEBUG_BUS is not set ++# CONFIG_I2C_DEBUG_CHIP is not set + + # + # SPI support +@@ -655,7 +737,7 @@ CONFIG_SPI_ATMEL=y + # SPI Protocol Masters + # + # CONFIG_SPI_AT25 is not set +-# CONFIG_SPI_SPIDEV is not set ++CONFIG_SPI_SPIDEV=m + + # + # Dallas's 1-wire bus +@@ -706,21 +788,59 @@ CONFIG_SPI_ATMEL=y + # + # USB Gadget Support + # +-# CONFIG_USB_GADGET is not set +-# CONFIG_MMC is not set ++CONFIG_USB_GADGET=y ++# CONFIG_USB_GADGET_DEBUG_FILES is not set ++CONFIG_USB_GADGET_SELECTED=y ++# CONFIG_USB_GADGET_FSL_USB2 is not set ++# CONFIG_USB_GADGET_NET2280 is not set ++# CONFIG_USB_GADGET_PXA2XX is not set ++# CONFIG_USB_GADGET_GOKU is not set ++# CONFIG_USB_GADGET_LH7A40X is not set ++CONFIG_USB_GADGET_ATMEL_USBA=y ++CONFIG_USB_ATMEL_USBA=y ++# CONFIG_USB_GADGET_OMAP is not set ++# CONFIG_USB_GADGET_AT91 is not set ++# CONFIG_USB_GADGET_DUMMY_HCD is not set ++CONFIG_USB_GADGET_DUALSPEED=y ++CONFIG_USB_ZERO=m ++CONFIG_USB_ETH=m ++CONFIG_USB_ETH_RNDIS=y ++CONFIG_USB_GADGETFS=m ++CONFIG_USB_FILE_STORAGE=m ++# CONFIG_USB_FILE_STORAGE_TEST is not set ++CONFIG_USB_G_SERIAL=m ++# CONFIG_USB_MIDI_GADGET is not set ++CONFIG_MMC=y ++# CONFIG_MMC_DEBUG is not set ++# CONFIG_MMC_UNSAFE_RESUME is not set ++ ++# ++# MMC/SD Card Drivers ++# ++CONFIG_MMC_BLOCK=y ++ ++# ++# MMC/SD Host Controller Drivers ++# ++CONFIG_MMC_ATMELMCI=y + + # + # LED devices + # +-# CONFIG_NEW_LEDS is not set ++CONFIG_NEW_LEDS=y ++CONFIG_LEDS_CLASS=y + + # + # LED drivers + # ++CONFIG_LEDS_GPIO=y + + # + # LED Triggers + # ++CONFIG_LEDS_TRIGGERS=y ++CONFIG_LEDS_TRIGGER_TIMER=y ++CONFIG_LEDS_TRIGGER_HEARTBEAT=y + + # + # InfiniBand support +@@ -733,7 +853,51 @@ CONFIG_SPI_ATMEL=y + # + # Real Time Clock + # +-# CONFIG_RTC_CLASS is not set ++CONFIG_RTC_LIB=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_HCTOSYS=y ++CONFIG_RTC_HCTOSYS_DEVICE="rtc0" ++# CONFIG_RTC_DEBUG is not set ++ ++# ++# RTC interfaces ++# ++CONFIG_RTC_INTF_SYSFS=y ++CONFIG_RTC_INTF_PROC=y ++CONFIG_RTC_INTF_DEV=y ++# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set ++# CONFIG_RTC_DRV_TEST is not set ++ ++# ++# I2C RTC drivers ++# ++# CONFIG_RTC_DRV_DS1307 is not set ++# CONFIG_RTC_DRV_DS1672 is not set ++# CONFIG_RTC_DRV_MAX6900 is not set ++# CONFIG_RTC_DRV_RS5C372 is not set ++# CONFIG_RTC_DRV_ISL1208 is not set ++# CONFIG_RTC_DRV_X1205 is not set ++# CONFIG_RTC_DRV_PCF8563 is not set ++# CONFIG_RTC_DRV_PCF8583 is not set ++ ++# ++# SPI RTC drivers ++# ++# CONFIG_RTC_DRV_RS5C348 is not set ++# CONFIG_RTC_DRV_MAX6902 is not set ++ ++# ++# Platform RTC drivers ++# ++# CONFIG_RTC_DRV_DS1553 is not set ++# CONFIG_RTC_DRV_DS1742 is not set ++# CONFIG_RTC_DRV_M48T86 is not set ++# CONFIG_RTC_DRV_V3020 is not set ++ ++# ++# on-CPU RTC drivers ++# ++CONFIG_RTC_DRV_AT32AP700X=y + + # + # DMA Engine support +@@ -767,7 +931,8 @@ CONFIG_JBD=y + # CONFIG_OCFS2_FS is not set + # CONFIG_MINIX_FS is not set + # CONFIG_ROMFS_FS is not set +-# CONFIG_INOTIFY is not set ++CONFIG_INOTIFY=y ++CONFIG_INOTIFY_USER=y + # CONFIG_QUOTA is not set + # CONFIG_DNOTIFY is not set + # CONFIG_AUTOFS_FS is not set +@@ -922,7 +1087,7 @@ CONFIG_TRACE_IRQFLAGS_SUPPORT=y + CONFIG_ENABLE_MUST_CHECK=y + CONFIG_MAGIC_SYSRQ=y + # CONFIG_UNUSED_SYMBOLS is not set +-# CONFIG_DEBUG_FS is not set ++CONFIG_DEBUG_FS=y + # CONFIG_HEADERS_CHECK is not set + CONFIG_DEBUG_KERNEL=y + # CONFIG_DEBUG_SHIRQ is not set +diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig +index 3b977fd..3708066 100644 +--- a/arch/avr32/configs/atstk1002_defconfig ++++ b/arch/avr32/configs/atstk1002_defconfig +@@ -1,7 +1,7 @@ + # + # Automatically generated make config: don't edit +-# Linux kernel version: 2.6.22-rc5 +-# Sat Jun 23 15:32:08 2007 ++# Linux kernel version: 2.6.22.atmel.2 ++# Thu Jul 19 13:46:47 2007 + # + CONFIG_AVR32=y + CONFIG_GENERIC_GPIO=y +@@ -80,10 +80,10 @@ CONFIG_BASE_SMALL=1 + # + CONFIG_MODULES=y + CONFIG_MODULE_UNLOAD=y +-# CONFIG_MODULE_FORCE_UNLOAD is not set ++CONFIG_MODULE_FORCE_UNLOAD=y + # CONFIG_MODVERSIONS is not set + # CONFIG_MODULE_SRCVERSION_ALL is not set +-# CONFIG_KMOD is not set ++CONFIG_KMOD=y + + # + # Block layer +@@ -99,12 +99,12 @@ CONFIG_BLOCK=y + CONFIG_IOSCHED_NOOP=y + # CONFIG_IOSCHED_AS is not set + # CONFIG_IOSCHED_DEADLINE is not set +-# CONFIG_IOSCHED_CFQ is not set ++CONFIG_IOSCHED_CFQ=y + # CONFIG_DEFAULT_AS is not set + # CONFIG_DEFAULT_DEADLINE is not set +-# CONFIG_DEFAULT_CFQ is not set +-CONFIG_DEFAULT_NOOP=y +-CONFIG_DEFAULT_IOSCHED="noop" ++CONFIG_DEFAULT_CFQ=y ++# CONFIG_DEFAULT_NOOP is not set ++CONFIG_DEFAULT_IOSCHED="cfq" + + # + # System Type and features +@@ -117,6 +117,11 @@ CONFIG_CPU_AT32AP7000=y + CONFIG_BOARD_ATSTK1002=y + CONFIG_BOARD_ATSTK1000=y + # CONFIG_BOARD_ATNGW100 is not set ++# CONFIG_BOARD_ATSTK1002_CUSTOM is not set ++# CONFIG_BOARD_ATSTK1002_SPI1 is not set ++# CONFIG_BOARD_ATSTK1002_J2_LED is not set ++# CONFIG_BOARD_ATSTK1002_J2_LED8 is not set ++# CONFIG_BOARD_ATSTK1002_J2_RGB is not set + CONFIG_LOADER_U_BOOT=y + + # +@@ -125,6 +130,7 @@ CONFIG_LOADER_U_BOOT=y + # CONFIG_AP7000_32_BIT_SMC is not set + CONFIG_AP7000_16_BIT_SMC=y + # CONFIG_AP7000_8_BIT_SMC is not set ++CONFIG_GPIO_DEV=y + CONFIG_LOAD_ADDRESS=0x10000000 + CONFIG_ENTRY_ADDRESS=0x90000000 + CONFIG_PHYS_OFFSET=0x10000000 +@@ -148,6 +154,7 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 + # CONFIG_RESOURCES_64BIT is not set + CONFIG_ZONE_DMA_FLAG=0 + # CONFIG_OWNERSHIP_TRACE is not set ++CONFIG_DW_DMAC=y + # CONFIG_HZ_100 is not set + CONFIG_HZ_250=y + # CONFIG_HZ_300 is not set +@@ -156,6 +163,27 @@ CONFIG_HZ=250 + CONFIG_CMDLINE="" + + # ++# Power managment options ++# ++ ++# ++# CPU Frequency scaling ++# ++CONFIG_CPU_FREQ=y ++CONFIG_CPU_FREQ_TABLE=y ++# CONFIG_CPU_FREQ_DEBUG is not set ++CONFIG_CPU_FREQ_STAT=m ++# CONFIG_CPU_FREQ_STAT_DETAILS is not set ++CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y ++# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set ++CONFIG_CPU_FREQ_GOV_PERFORMANCE=y ++CONFIG_CPU_FREQ_GOV_POWERSAVE=y ++CONFIG_CPU_FREQ_GOV_USERSPACE=y ++CONFIG_CPU_FREQ_GOV_ONDEMAND=y ++# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set ++CONFIG_CPU_FREQ_AT32AP=y ++ ++# + # Bus options + # + # CONFIG_ARCH_SUPPORTS_MSI is not set +@@ -327,6 +355,8 @@ CONFIG_MTD_PHYSMAP_BANKWIDTH=2 + # + # Self-contained MTD device drivers + # ++CONFIG_MTD_DATAFLASH=m ++# CONFIG_MTD_M25P80 is not set + # CONFIG_MTD_SLRAM is not set + # CONFIG_MTD_PHRAM is not set + # CONFIG_MTD_MTDRAM is not set +@@ -373,7 +403,7 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 + # + # Misc devices + # +-# CONFIG_BLINK is not set ++CONFIG_ATMEL_SSC=m + # CONFIG_IDE is not set + + # +@@ -397,13 +427,26 @@ CONFIG_DUMMY=y + # CONFIG_BONDING is not set + # CONFIG_EQUALIZER is not set + CONFIG_TUN=m +-# CONFIG_PHYLIB is not set ++CONFIG_PHYLIB=y ++ ++# ++# MII PHY device drivers ++# ++# CONFIG_MARVELL_PHY is not set ++# CONFIG_DAVICOM_PHY is not set ++# CONFIG_QSEMI_PHY is not set ++CONFIG_LXT_PHY=y ++# CONFIG_CICADA_PHY is not set ++# CONFIG_VITESSE_PHY is not set ++# CONFIG_SMSC_PHY is not set ++# CONFIG_BROADCOM_PHY is not set ++# CONFIG_FIXED_PHY is not set + + # + # Ethernet (10 or 100Mbit) + # + CONFIG_NET_ETHERNET=y +-CONFIG_MII=y ++# CONFIG_MII is not set + CONFIG_MACB=y + # CONFIG_NETDEV_1000 is not set + # CONFIG_NETDEV_10000 is not set +@@ -443,7 +486,42 @@ CONFIG_SLHC=m + # + # Input device support + # +-# CONFIG_INPUT is not set ++CONFIG_INPUT=m ++# CONFIG_INPUT_FF_MEMLESS is not set ++CONFIG_INPUT_POLLDEV=m ++ ++# ++# Userland interfaces ++# ++CONFIG_INPUT_MOUSEDEV=m ++CONFIG_INPUT_MOUSEDEV_PSAUX=y ++CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 ++CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 ++# CONFIG_INPUT_JOYDEV is not set ++# CONFIG_INPUT_TSDEV is not set ++# CONFIG_INPUT_EVDEV is not set ++# CONFIG_INPUT_EVBUG is not set ++ ++# ++# Input Device Drivers ++# ++CONFIG_INPUT_KEYBOARD=y ++# CONFIG_KEYBOARD_ATKBD is not set ++# CONFIG_KEYBOARD_SUNKBD is not set ++# CONFIG_KEYBOARD_LKKBD is not set ++# CONFIG_KEYBOARD_XTKBD is not set ++# CONFIG_KEYBOARD_NEWTON is not set ++# CONFIG_KEYBOARD_STOWAWAY is not set ++CONFIG_KEYBOARD_GPIO=m ++CONFIG_INPUT_MOUSE=y ++# CONFIG_MOUSE_PS2 is not set ++# CONFIG_MOUSE_SERIAL is not set ++# CONFIG_MOUSE_VSXXXAA is not set ++CONFIG_MOUSE_GPIO=m ++# CONFIG_INPUT_JOYSTICK is not set ++# CONFIG_INPUT_TABLET is not set ++# CONFIG_INPUT_TOUCHSCREEN is not set ++# CONFIG_INPUT_MISC is not set + + # + # Hardware I/O ports +@@ -477,7 +555,15 @@ CONFIG_UNIX98_PTYS=y + # IPMI + # + # CONFIG_IPMI_HANDLER is not set +-# CONFIG_WATCHDOG is not set ++CONFIG_WATCHDOG=y ++# CONFIG_WATCHDOG_NOWAYOUT is not set ++ ++# ++# Watchdog Device Drivers ++# ++# CONFIG_SOFT_WATCHDOG is not set ++CONFIG_AT32AP700X_WDT=y ++CONFIG_AT32AP700X_WDT_TIMEOUT=2 + # CONFIG_HW_RANDOM is not set + # CONFIG_RTC is not set + # CONFIG_GEN_RTC is not set +@@ -488,13 +574,61 @@ CONFIG_UNIX98_PTYS=y + # TPM devices + # + # CONFIG_TCG_TPM is not set +-# CONFIG_I2C is not set ++CONFIG_I2C=m ++CONFIG_I2C_BOARDINFO=y ++CONFIG_I2C_CHARDEV=m ++ ++# ++# I2C Algorithms ++# ++CONFIG_I2C_ALGOBIT=m ++# CONFIG_I2C_ALGOPCF is not set ++# CONFIG_I2C_ALGOPCA is not set ++ ++# ++# I2C Hardware Bus support ++# ++CONFIG_I2C_ATMELTWI=m ++CONFIG_I2C_ATMELTWI_BAUDRATE=100000 ++CONFIG_I2C_GPIO=m ++# CONFIG_I2C_OCORES is not set ++# CONFIG_I2C_PARPORT_LIGHT is not set ++# CONFIG_I2C_SIMTEC is not set ++# CONFIG_I2C_STUB is not set ++ ++# ++# Miscellaneous I2C Chip support ++# ++# CONFIG_SENSORS_DS1337 is not set ++# CONFIG_SENSORS_DS1374 is not set ++# CONFIG_SENSORS_EEPROM is not set ++# CONFIG_SENSORS_PCF8574 is not set ++# CONFIG_SENSORS_PCA9539 is not set ++# CONFIG_SENSORS_PCF8591 is not set ++# CONFIG_SENSORS_MAX6875 is not set ++# CONFIG_I2C_DEBUG_CORE is not set ++# CONFIG_I2C_DEBUG_ALGO is not set ++# CONFIG_I2C_DEBUG_BUS is not set ++# CONFIG_I2C_DEBUG_CHIP is not set + + # + # SPI support + # +-# CONFIG_SPI is not set +-# CONFIG_SPI_MASTER is not set ++CONFIG_SPI=y ++# CONFIG_SPI_DEBUG is not set ++CONFIG_SPI_MASTER=y ++ ++# ++# SPI Master Controller Drivers ++# ++CONFIG_SPI_ATMEL=y ++# CONFIG_SPI_BITBANG is not set ++ ++# ++# SPI Protocol Masters ++# ++# CONFIG_SPI_AT25 is not set ++CONFIG_SPI_SPIDEV=m + + # + # Dallas's 1-wire bus +@@ -517,19 +651,91 @@ CONFIG_UNIX98_PTYS=y + # + # Graphics support + # +-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set ++CONFIG_BACKLIGHT_LCD_SUPPORT=y ++CONFIG_LCD_CLASS_DEVICE=y ++CONFIG_LCD_LTV350QV=y ++# CONFIG_BACKLIGHT_CLASS_DEVICE is not set + + # + # Display device support + # + # CONFIG_DISPLAY_SUPPORT is not set + # CONFIG_VGASTATE is not set +-# CONFIG_FB is not set ++CONFIG_FB=y ++# CONFIG_FIRMWARE_EDID is not set ++# CONFIG_FB_DDC is not set ++CONFIG_FB_CFB_FILLRECT=y ++CONFIG_FB_CFB_COPYAREA=y ++CONFIG_FB_CFB_IMAGEBLIT=y ++# CONFIG_FB_SYS_FILLRECT is not set ++# CONFIG_FB_SYS_COPYAREA is not set ++# CONFIG_FB_SYS_IMAGEBLIT is not set ++# CONFIG_FB_SYS_FOPS is not set ++CONFIG_FB_DEFERRED_IO=y ++# CONFIG_FB_SVGALIB is not set ++# CONFIG_FB_MACMODES is not set ++# CONFIG_FB_BACKLIGHT is not set ++# CONFIG_FB_MODE_HELPERS is not set ++# CONFIG_FB_TILEBLITTING is not set ++ ++# ++# Frame buffer hardware drivers ++# ++# CONFIG_FB_S1D13XXX is not set ++CONFIG_FB_ATMEL=y ++# CONFIG_FB_VIRTUAL is not set ++# CONFIG_LOGO is not set + + # + # Sound + # +-# CONFIG_SOUND is not set ++CONFIG_SOUND=m ++ ++# ++# Advanced Linux Sound Architecture ++# ++CONFIG_SND=m ++CONFIG_SND_TIMER=m ++CONFIG_SND_PCM=m ++# CONFIG_SND_SEQUENCER is not set ++CONFIG_SND_OSSEMUL=y ++CONFIG_SND_MIXER_OSS=m ++CONFIG_SND_PCM_OSS=m ++CONFIG_SND_PCM_OSS_PLUGINS=y ++# CONFIG_SND_DYNAMIC_MINORS is not set ++# CONFIG_SND_SUPPORT_OLD_API is not set ++CONFIG_SND_VERBOSE_PROCFS=y ++# CONFIG_SND_VERBOSE_PRINTK is not set ++# CONFIG_SND_DEBUG is not set ++ ++# ++# Generic devices ++# ++# CONFIG_SND_DUMMY is not set ++# CONFIG_SND_MTPAV is not set ++# CONFIG_SND_SERIAL_U16550 is not set ++# CONFIG_SND_MPU401 is not set ++ ++# ++# SPI devices ++# ++CONFIG_SND_AT73C213=m ++CONFIG_SND_AT73C213_TARGET_BITRATE=48000 ++ ++# ++# System on Chip audio support ++# ++# CONFIG_SND_SOC is not set ++ ++# ++# Open Sound System ++# ++# CONFIG_SOUND_PRIME is not set ++ ++# ++# HID Devices ++# ++# CONFIG_HID is not set + + # + # USB support +@@ -545,21 +751,59 @@ CONFIG_UNIX98_PTYS=y + # + # USB Gadget Support + # +-# CONFIG_USB_GADGET is not set +-# CONFIG_MMC is not set ++CONFIG_USB_GADGET=y ++# CONFIG_USB_GADGET_DEBUG_FILES is not set ++CONFIG_USB_GADGET_SELECTED=y ++# CONFIG_USB_GADGET_FSL_USB2 is not set ++# CONFIG_USB_GADGET_NET2280 is not set ++# CONFIG_USB_GADGET_PXA2XX is not set ++# CONFIG_USB_GADGET_GOKU is not set ++# CONFIG_USB_GADGET_LH7A40X is not set ++CONFIG_USB_GADGET_ATMEL_USBA=y ++CONFIG_USB_ATMEL_USBA=y ++# CONFIG_USB_GADGET_OMAP is not set ++# CONFIG_USB_GADGET_AT91 is not set ++# CONFIG_USB_GADGET_DUMMY_HCD is not set ++CONFIG_USB_GADGET_DUALSPEED=y ++CONFIG_USB_ZERO=m ++CONFIG_USB_ETH=m ++CONFIG_USB_ETH_RNDIS=y ++CONFIG_USB_GADGETFS=m ++CONFIG_USB_FILE_STORAGE=m ++# CONFIG_USB_FILE_STORAGE_TEST is not set ++CONFIG_USB_G_SERIAL=m ++# CONFIG_USB_MIDI_GADGET is not set ++CONFIG_MMC=y ++# CONFIG_MMC_DEBUG is not set ++# CONFIG_MMC_UNSAFE_RESUME is not set ++ ++# ++# MMC/SD Card Drivers ++# ++CONFIG_MMC_BLOCK=y ++ ++# ++# MMC/SD Host Controller Drivers ++# ++CONFIG_MMC_ATMELMCI=y + + # + # LED devices + # +-# CONFIG_NEW_LEDS is not set ++CONFIG_NEW_LEDS=y ++CONFIG_LEDS_CLASS=m + + # + # LED drivers + # ++CONFIG_LEDS_GPIO=m + + # + # LED Triggers + # ++CONFIG_LEDS_TRIGGERS=y ++CONFIG_LEDS_TRIGGER_TIMER=m ++CONFIG_LEDS_TRIGGER_HEARTBEAT=m + + # + # InfiniBand support +@@ -572,7 +816,50 @@ CONFIG_UNIX98_PTYS=y + # + # Real Time Clock + # +-# CONFIG_RTC_CLASS is not set ++CONFIG_RTC_LIB=y ++CONFIG_RTC_CLASS=y ++# CONFIG_RTC_HCTOSYS is not set ++# CONFIG_RTC_DEBUG is not set ++ ++# ++# RTC interfaces ++# ++CONFIG_RTC_INTF_SYSFS=y ++CONFIG_RTC_INTF_PROC=y ++CONFIG_RTC_INTF_DEV=y ++# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set ++# CONFIG_RTC_DRV_TEST is not set ++ ++# ++# I2C RTC drivers ++# ++# CONFIG_RTC_DRV_DS1307 is not set ++# CONFIG_RTC_DRV_DS1672 is not set ++# CONFIG_RTC_DRV_MAX6900 is not set ++# CONFIG_RTC_DRV_RS5C372 is not set ++# CONFIG_RTC_DRV_ISL1208 is not set ++# CONFIG_RTC_DRV_X1205 is not set ++# CONFIG_RTC_DRV_PCF8563 is not set ++# CONFIG_RTC_DRV_PCF8583 is not set ++ ++# ++# SPI RTC drivers ++# ++# CONFIG_RTC_DRV_RS5C348 is not set ++# CONFIG_RTC_DRV_MAX6902 is not set ++ ++# ++# Platform RTC drivers ++# ++# CONFIG_RTC_DRV_DS1553 is not set ++# CONFIG_RTC_DRV_DS1742 is not set ++# CONFIG_RTC_DRV_M48T86 is not set ++# CONFIG_RTC_DRV_V3020 is not set ++ ++# ++# on-CPU RTC drivers ++# ++CONFIG_RTC_DRV_AT32AP700X=y + + # + # DMA Engine support +@@ -590,11 +877,14 @@ CONFIG_UNIX98_PTYS=y + # + # File systems + # +-CONFIG_EXT2_FS=m ++CONFIG_EXT2_FS=y + # CONFIG_EXT2_FS_XATTR is not set + # CONFIG_EXT2_FS_XIP is not set +-# CONFIG_EXT3_FS is not set ++CONFIG_EXT3_FS=y ++# CONFIG_EXT3_FS_XATTR is not set + # CONFIG_EXT4DEV_FS is not set ++CONFIG_JBD=y ++# CONFIG_JBD_DEBUG is not set + # CONFIG_REISERFS_FS is not set + # CONFIG_JFS_FS is not set + # CONFIG_FS_POSIX_ACL is not set +@@ -609,7 +899,7 @@ CONFIG_INOTIFY_USER=y + # CONFIG_DNOTIFY is not set + # CONFIG_AUTOFS_FS is not set + # CONFIG_AUTOFS4_FS is not set +-# CONFIG_FUSE_FS is not set ++CONFIG_FUSE_FS=m + + # + # CD-ROM/DVD Filesystems +@@ -638,7 +928,7 @@ CONFIG_TMPFS=y + # CONFIG_TMPFS_POSIX_ACL is not set + # CONFIG_HUGETLB_PAGE is not set + CONFIG_RAMFS=y +-CONFIG_CONFIGFS_FS=m ++CONFIG_CONFIGFS_FS=y + + # + # Miscellaneous filesystems +@@ -683,8 +973,14 @@ CONFIG_SUNRPC=y + # CONFIG_SUNRPC_BIND34 is not set + # CONFIG_RPCSEC_GSS_KRB5 is not set + # CONFIG_RPCSEC_GSS_SPKM3 is not set +-# CONFIG_SMB_FS is not set +-# CONFIG_CIFS is not set ++CONFIG_SMB_FS=m ++# CONFIG_SMB_NLS_DEFAULT is not set ++CONFIG_CIFS=m ++# CONFIG_CIFS_STATS is not set ++# CONFIG_CIFS_WEAK_PW_HASH is not set ++# CONFIG_CIFS_XATTR is not set ++# CONFIG_CIFS_DEBUG2 is not set ++# CONFIG_CIFS_EXPERIMENTAL is not set + # CONFIG_NCP_FS is not set + # CONFIG_CODA_FS is not set + # CONFIG_AFS_FS is not set +diff --git a/arch/avr32/drivers/Makefile b/arch/avr32/drivers/Makefile +new file mode 100644 +index 0000000..b429b75 +--- /dev/null ++++ b/arch/avr32/drivers/Makefile +@@ -0,0 +1 @@ ++obj-$(CONFIG_DW_DMAC) += dw-dmac.o +diff --git a/arch/avr32/drivers/dw-dmac.c b/arch/avr32/drivers/dw-dmac.c +new file mode 100644 +index 0000000..224eb30 +--- /dev/null ++++ b/arch/avr32/drivers/dw-dmac.c +@@ -0,0 +1,761 @@ ++/* ++ * Driver for the Synopsys DesignWare DMA Controller ++ * ++ * Copyright (C) 2005-2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#include <linux/clk.h> ++#include <linux/device.h> ++#include <linux/dma-mapping.h> ++#include <linux/dmapool.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++ ++#include <asm/dma-controller.h> ++#include <asm/io.h> ++ ++#include "dw-dmac.h" ++ ++#define DMAC_NR_CHANNELS 3 ++#define DMAC_MAX_BLOCKSIZE 4095 ++ ++enum { ++ CH_STATE_FREE = 0, ++ CH_STATE_ALLOCATED, ++ CH_STATE_BUSY, ++}; ++ ++struct dw_dma_lli { ++ dma_addr_t sar; ++ dma_addr_t dar; ++ dma_addr_t llp; ++ u32 ctllo; ++ u32 ctlhi; ++ u32 sstat; ++ u32 dstat; ++}; ++ ++struct dw_dma_block { ++ struct dw_dma_lli *lli_vaddr; ++ dma_addr_t lli_dma_addr; ++}; ++ ++struct dw_dma_channel { ++ unsigned int state; ++ int is_cyclic; ++ struct dma_request_sg *req_sg; ++ struct dma_request_cyclic *req_cyclic; ++ unsigned int nr_blocks; ++ int direction; ++ struct dw_dma_block *block; ++}; ++ ++struct dw_dma_controller { ++ spinlock_t lock; ++ void * __iomem regs; ++ struct dma_pool *lli_pool; ++ struct clk *hclk; ++ struct dma_controller dma; ++ struct dw_dma_channel channel[DMAC_NR_CHANNELS]; ++}; ++#define to_dw_dmac(dmac) container_of(dmac, struct dw_dma_controller, dma) ++ ++#define dmac_writel_hi(dmac, reg, value) \ ++ __raw_writel((value), (dmac)->regs + DW_DMAC_##reg + 4) ++#define dmac_readl_hi(dmac, reg) \ ++ __raw_readl((dmac)->regs + DW_DMAC_##reg + 4) ++#define dmac_writel_lo(dmac, reg, value) \ ++ __raw_writel((value), (dmac)->regs + DW_DMAC_##reg) ++#define dmac_readl_lo(dmac, reg) \ ++ __raw_readl((dmac)->regs + DW_DMAC_##reg) ++#define dmac_chan_writel_hi(dmac, chan, reg, value) \ ++ __raw_writel((value), ((dmac)->regs + 0x58 * (chan) \ ++ + DW_DMAC_CHAN_##reg + 4)) ++#define dmac_chan_readl_hi(dmac, chan, reg) \ ++ __raw_readl((dmac)->regs + 0x58 * (chan) + DW_DMAC_CHAN_##reg + 4) ++#define dmac_chan_writel_lo(dmac, chan, reg, value) \ ++ __raw_writel((value), (dmac)->regs + 0x58 * (chan) + DW_DMAC_CHAN_##reg) ++#define dmac_chan_readl_lo(dmac, chan, reg) \ ++ __raw_readl((dmac)->regs + 0x58 * (chan) + DW_DMAC_CHAN_##reg) ++#define set_channel_bit(dmac, reg, chan) \ ++ dmac_writel_lo(dmac, reg, (1 << (chan)) | (1 << ((chan) + 8))) ++#define clear_channel_bit(dmac, reg, chan) \ ++ dmac_writel_lo(dmac, reg, (0 << (chan)) | (1 << ((chan) + 8))) ++ ++static int dmac_alloc_channel(struct dma_controller *_dmac) ++{ ++ struct dw_dma_controller *dmac = to_dw_dmac(_dmac); ++ struct dw_dma_channel *chan; ++ unsigned long flags; ++ int i; ++ ++ spin_lock_irqsave(&dmac->lock, flags); ++ for (i = 0; i < DMAC_NR_CHANNELS; i++) ++ if (dmac->channel[i].state == CH_STATE_FREE) ++ break; ++ ++ if (i < DMAC_NR_CHANNELS) { ++ chan = &dmac->channel[i]; ++ chan->state = CH_STATE_ALLOCATED; ++ } else { ++ i = -EBUSY; ++ } ++ ++ spin_unlock_irqrestore(&dmac->lock, flags); ++ ++ return i; ++} ++ ++static void dmac_release_channel(struct dma_controller *_dmac, int channel) ++{ ++ struct dw_dma_controller *dmac = to_dw_dmac(_dmac); ++ ++ BUG_ON(channel >= DMAC_NR_CHANNELS ++ || dmac->channel[channel].state != CH_STATE_ALLOCATED); ++ ++ dmac->channel[channel].state = CH_STATE_FREE; ++} ++ ++static struct dw_dma_block *allocate_blocks(struct dw_dma_controller *dmac, ++ unsigned int nr_blocks) ++{ ++ struct dw_dma_block *block; ++ void *p; ++ unsigned int i; ++ ++ block = kmalloc(nr_blocks * sizeof(*block), ++ GFP_KERNEL); ++ if (unlikely(!block)) ++ return NULL; ++ ++ for (i = 0; i < nr_blocks; i++) { ++ p = dma_pool_alloc(dmac->lli_pool, GFP_KERNEL, ++ &block[i].lli_dma_addr); ++ block[i].lli_vaddr = p; ++ if (unlikely(!p)) ++ goto fail; ++ } ++ ++ return block; ++ ++fail: ++ for (i = 0; i < nr_blocks; i++) { ++ if (!block[i].lli_vaddr) ++ break; ++ dma_pool_free(dmac->lli_pool, block[i].lli_vaddr, ++ block[i].lli_dma_addr); ++ } ++ kfree(block); ++ return NULL; ++} ++ ++static void cleanup_channel(struct dw_dma_controller *dmac, ++ struct dw_dma_channel *chan) ++{ ++ unsigned int i; ++ ++ if (chan->nr_blocks > 1) { ++ for (i = 0; i < chan->nr_blocks; i++) ++ dma_pool_free(dmac->lli_pool, chan->block[i].lli_vaddr, ++ chan->block[i].lli_dma_addr); ++ kfree(chan->block); ++ } ++ ++ chan->state = CH_STATE_ALLOCATED; ++} ++ ++static int dmac_prepare_request_sg(struct dma_controller *_dmac, ++ struct dma_request_sg *req) ++{ ++ struct dw_dma_controller *dmac = to_dw_dmac(_dmac); ++ struct dw_dma_channel *chan; ++ unsigned long ctlhi, ctllo, cfghi, cfglo; ++ unsigned long block_size; ++ unsigned int nr_blocks; ++ int ret, i, direction; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dmac->lock, flags); ++ ++ ret = -EINVAL; ++ if (req->req.channel >= DMAC_NR_CHANNELS ++ || dmac->channel[req->req.channel].state != CH_STATE_ALLOCATED ++ || req->block_size > DMAC_MAX_BLOCKSIZE) { ++ spin_unlock_irqrestore(&dmac->lock, flags); ++ return -EINVAL; ++ } ++ ++ chan = &dmac->channel[req->req.channel]; ++ chan->state = CH_STATE_BUSY; ++ chan->req_sg = req; ++ chan->is_cyclic = 0; ++ ++ /* ++ * We have marked the channel as busy, so no need to keep the ++ * lock as long as we only touch the channel-specific ++ * registers ++ */ ++ spin_unlock_irqrestore(&dmac->lock, flags); ++ ++ /* ++ * There may be limitations in the driver and/or the DMA ++ * controller that prevents us from sending a whole ++ * scatterlist item in one go. Taking this into account, ++ * calculate the number of block transfers we need to set up. ++ * ++ * FIXME: Let the peripheral driver know about the maximum ++ * block size we support. We really don't want to use a ++ * different block size than what was suggested by the ++ * peripheral. ++ * ++ * Each block will get its own Linked List Item (LLI) below. ++ */ ++ block_size = req->block_size; ++ nr_blocks = req->nr_blocks; ++ pr_debug("block_size %lu, nr_blocks %u nr_sg = %u\n", ++ block_size, nr_blocks, req->nr_sg); ++ ++ BUG_ON(nr_blocks == 0); ++ chan->nr_blocks = nr_blocks; ++ ++ ret = -EINVAL; ++ cfglo = cfghi = 0; ++ switch (req->direction) { ++ case DMA_DIR_MEM_TO_PERIPH: ++ direction = DMA_TO_DEVICE; ++ cfghi = req->periph_id << (43 - 32); ++ break; ++ ++ case DMA_DIR_PERIPH_TO_MEM: ++ direction = DMA_FROM_DEVICE; ++ cfghi = req->periph_id << (39 - 32); ++ break; ++ default: ++ goto out_unclaim_channel; ++ } ++ ++ chan->direction = direction; ++ ++ dmac_chan_writel_hi(dmac, req->req.channel, CFG, cfghi); ++ dmac_chan_writel_lo(dmac, req->req.channel, CFG, cfglo); ++ ++ ctlhi = block_size >> req->width; ++ ctllo = ((req->direction << 20) ++ // | (1 << 14) | (1 << 11) // source/dest burst trans len ++ | (req->width << 4) | (req->width << 1) ++ | (1 << 0)); // interrupt enable ++ ++ if (nr_blocks == 1) { ++ /* Only one block: No need to use block chaining */ ++ if (direction == DMA_TO_DEVICE) { ++ dmac_chan_writel_lo(dmac, req->req.channel, SAR, ++ req->sg->dma_address); ++ dmac_chan_writel_lo(dmac, req->req.channel, DAR, ++ req->data_reg); ++ ctllo |= 2 << 7; // no dst increment ++ } else { ++ dmac_chan_writel_lo(dmac, req->req.channel, SAR, ++ req->data_reg); ++ dmac_chan_writel_lo(dmac, req->req.channel, DAR, ++ req->sg->dma_address); ++ ctllo |= 2 << 9; // no src increment ++ } ++ dmac_chan_writel_lo(dmac, req->req.channel, CTL, ctllo); ++ dmac_chan_writel_hi(dmac, req->req.channel, CTL, ctlhi); ++ pr_debug("ctl hi:lo 0x%lx:%lx\n", ctlhi, ctllo); ++ } else { ++ struct dw_dma_lli *lli, *lli_prev = NULL; ++ int j = 0, offset = 0; ++ ++ ret = -ENOMEM; ++ chan->block = allocate_blocks(dmac, nr_blocks); ++ if (!chan->block) ++ goto out_unclaim_channel; ++ ++ if (direction == DMA_TO_DEVICE) ++ ctllo |= 1 << 28 | 1 << 27 | 2 << 7; ++ else ++ ctllo |= 1 << 28 | 1 << 27 | 2 << 9; ++ ++ /* ++ * Map scatterlist items to blocks. One scatterlist ++ * item may need more than one block for the reasons ++ * mentioned above. ++ */ ++ for (i = 0; i < nr_blocks; i++) { ++ lli = chan->block[i].lli_vaddr; ++ if (lli_prev) { ++ lli_prev->llp = chan->block[i].lli_dma_addr; ++ pr_debug("lli[%d] (0x%p/0x%x): 0x%x 0x%x 0x%x 0x%x 0x%x\n", ++ i - 1, chan->block[i - 1].lli_vaddr, ++ chan->block[i - 1].lli_dma_addr, ++ lli_prev->sar, lli_prev->dar, lli_prev->llp, ++ lli_prev->ctllo, lli_prev->ctlhi); ++ } ++ lli->llp = 0; ++ lli->ctllo = ctllo; ++ lli->ctlhi = ctlhi; ++ if (direction == DMA_TO_DEVICE) { ++ lli->sar = req->sg[j].dma_address + offset; ++ lli->dar = req->data_reg; ++ } else { ++ lli->sar = req->data_reg; ++ lli->dar = req->sg[j].dma_address + offset; ++ } ++ lli_prev = lli; ++ ++ offset += block_size; ++ if (offset > req->sg[j].length) { ++ j++; ++ offset = 0; ++ } ++ } ++ ++ pr_debug("lli[%d] (0x%p/0x%x): 0x%x 0x%x 0x%x 0x%x 0x%x\n", ++ i - 1, chan->block[i - 1].lli_vaddr, ++ chan->block[i - 1].lli_dma_addr, lli_prev->sar, ++ lli_prev->dar, lli_prev->llp, ++ lli_prev->ctllo, lli_prev->ctlhi); ++ ++ /* ++ * SAR, DAR and CTL are initialized from the LLI. We ++ * only have to enable the LLI bits in CTL. ++ */ ++ dmac_chan_writel_hi(dmac, req->req.channel, CTL, 0); ++ dmac_chan_writel_lo(dmac, req->req.channel, LLP, ++ chan->block[0].lli_dma_addr); ++ dmac_chan_writel_lo(dmac, req->req.channel, CTL, 1 << 28 | 1 << 27); ++ } ++ ++ set_channel_bit(dmac, MASK_XFER, req->req.channel); ++ set_channel_bit(dmac, MASK_ERROR, req->req.channel); ++ if (req->req.block_complete) ++ set_channel_bit(dmac, MASK_BLOCK, req->req.channel); ++ else ++ clear_channel_bit(dmac, MASK_BLOCK, req->req.channel); ++ ++ return 0; ++ ++out_unclaim_channel: ++ chan->state = CH_STATE_ALLOCATED; ++ return ret; ++} ++ ++static int dmac_prepare_request_cyclic(struct dma_controller *_dmac, ++ struct dma_request_cyclic *req) ++{ ++ struct dw_dma_controller *dmac = to_dw_dmac(_dmac); ++ struct dw_dma_channel *chan; ++ unsigned long ctlhi, ctllo, cfghi, cfglo; ++ unsigned long block_size; ++ int ret, i, direction; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dmac->lock, flags); ++ ++ block_size = (req->buffer_size/req->periods) >> req->width; ++ ++ ret = -EINVAL; ++ if (req->req.channel >= DMAC_NR_CHANNELS ++ || dmac->channel[req->req.channel].state != CH_STATE_ALLOCATED ++ || (req->periods == 0) ++ || block_size > DMAC_MAX_BLOCKSIZE) { ++ spin_unlock_irqrestore(&dmac->lock, flags); ++ return -EINVAL; ++ } ++ ++ chan = &dmac->channel[req->req.channel]; ++ chan->state = CH_STATE_BUSY; ++ chan->is_cyclic = 1; ++ chan->req_cyclic = req; ++ ++ /* ++ * We have marked the channel as busy, so no need to keep the ++ * lock as long as we only touch the channel-specific ++ * registers ++ */ ++ spin_unlock_irqrestore(&dmac->lock, flags); ++ ++ /* ++ Setup ++ */ ++ BUG_ON(req->buffer_size % req->periods); ++ /* printk(KERN_INFO "block_size = %lu, periods = %u\n", block_size, req->periods); */ ++ ++ chan->nr_blocks = req->periods; ++ ++ ret = -EINVAL; ++ cfglo = cfghi = 0; ++ switch (req->direction) { ++ case DMA_DIR_MEM_TO_PERIPH: ++ direction = DMA_TO_DEVICE; ++ cfghi = req->periph_id << (43 - 32); ++ break; ++ ++ case DMA_DIR_PERIPH_TO_MEM: ++ direction = DMA_FROM_DEVICE; ++ cfghi = req->periph_id << (39 - 32); ++ break; ++ default: ++ goto out_unclaim_channel; ++ } ++ ++ chan->direction = direction; ++ ++ dmac_chan_writel_hi(dmac, req->req.channel, CFG, cfghi); ++ dmac_chan_writel_lo(dmac, req->req.channel, CFG, cfglo); ++ ++ ctlhi = block_size; ++ ctllo = ((req->direction << 20) ++ | (req->width << 4) | (req->width << 1) ++ | (1 << 0)); // interrupt enable ++ ++ { ++ struct dw_dma_lli *lli = NULL, *lli_prev = NULL; ++ ++ ret = -ENOMEM; ++ chan->block = allocate_blocks(dmac, req->periods); ++ if (!chan->block) ++ goto out_unclaim_channel; ++ ++ if (direction == DMA_TO_DEVICE) ++ ctllo |= 1 << 28 | 1 << 27 | 2 << 7; ++ else ++ ctllo |= 1 << 28 | 1 << 27 | 2 << 9; ++ ++ /* ++ * Set up a linked list items where each period gets ++ * an item. The linked list item for the last period ++ * points back to the star of the buffer making a ++ * cyclic buffer. ++ */ ++ for (i = 0; i < req->periods; i++) { ++ lli = chan->block[i].lli_vaddr; ++ if (lli_prev) { ++ lli_prev->llp = chan->block[i].lli_dma_addr; ++ /* printk(KERN_INFO "lli[%d] (0x%p/0x%x): 0x%x 0x%x 0x%x 0x%x 0x%x\n", ++ i - 1, chan->block[i - 1].lli_vaddr, ++ chan->block[i - 1].lli_dma_addr, ++ lli_prev->sar, lli_prev->dar, lli_prev->llp, ++ lli_prev->ctllo, lli_prev->ctlhi);*/ ++ } ++ lli->llp = 0; ++ lli->ctllo = ctllo; ++ lli->ctlhi = ctlhi; ++ if (direction == DMA_TO_DEVICE) { ++ lli->sar = req->buffer_start + i*(block_size << req->width); ++ lli->dar = req->data_reg; ++ } else { ++ lli->sar = req->data_reg; ++ lli->dar = req->buffer_start + i*(block_size << req->width); ++ } ++ lli_prev = lli; ++ } ++ lli->llp = chan->block[0].lli_dma_addr; ++ ++ /*printk(KERN_INFO "lli[%d] (0x%p/0x%x): 0x%x 0x%x 0x%x 0x%x 0x%x\n", ++ i - 1, chan->block[i - 1].lli_vaddr, ++ chan->block[i - 1].lli_dma_addr, lli_prev->sar, ++ lli_prev->dar, lli_prev->llp, ++ lli_prev->ctllo, lli_prev->ctlhi); */ ++ ++ /* ++ * SAR, DAR and CTL are initialized from the LLI. We ++ * only have to enable the LLI bits in CTL. ++ */ ++ dmac_chan_writel_lo(dmac, req->req.channel, LLP, ++ chan->block[0].lli_dma_addr); ++ dmac_chan_writel_lo(dmac, req->req.channel, CTL, 1 << 28 | 1 << 27); ++ } ++ ++ clear_channel_bit(dmac, MASK_XFER, req->req.channel); ++ set_channel_bit(dmac, MASK_ERROR, req->req.channel); ++ if (req->req.block_complete) ++ set_channel_bit(dmac, MASK_BLOCK, req->req.channel); ++ else ++ clear_channel_bit(dmac, MASK_BLOCK, req->req.channel); ++ ++ return 0; ++ ++out_unclaim_channel: ++ chan->state = CH_STATE_ALLOCATED; ++ return ret; ++} ++ ++static int dmac_start_request(struct dma_controller *_dmac, ++ unsigned int channel) ++{ ++ struct dw_dma_controller *dmac = to_dw_dmac(_dmac); ++ ++ BUG_ON(channel >= DMAC_NR_CHANNELS); ++ ++ set_channel_bit(dmac, CH_EN, channel); ++ ++ return 0; ++} ++ ++static dma_addr_t dmac_get_current_pos(struct dma_controller *_dmac, ++ unsigned int channel) ++{ ++ struct dw_dma_controller *dmac = to_dw_dmac(_dmac); ++ struct dw_dma_channel *chan; ++ dma_addr_t current_pos; ++ ++ BUG_ON(channel >= DMAC_NR_CHANNELS); ++ ++ chan = &dmac->channel[channel]; ++ ++ switch (chan->direction) { ++ case DMA_TO_DEVICE: ++ current_pos = dmac_chan_readl_lo(dmac, channel, SAR); ++ break; ++ case DMA_FROM_DEVICE: ++ current_pos = dmac_chan_readl_lo(dmac, channel, DAR); ++ break; ++ default: ++ return 0; ++ } ++ ++ ++ if (!current_pos) { ++ if (chan->is_cyclic) { ++ current_pos = chan->req_cyclic->buffer_start; ++ } else { ++ current_pos = chan->req_sg->sg->dma_address; ++ } ++ } ++ ++ return current_pos; ++} ++ ++ ++static int dmac_stop_request(struct dma_controller *_dmac, ++ unsigned int channel) ++{ ++ struct dw_dma_controller *dmac = to_dw_dmac(_dmac); ++ struct dw_dma_channel *chan; ++ ++ BUG_ON(channel >= DMAC_NR_CHANNELS); ++ ++ chan = &dmac->channel[channel]; ++ pr_debug("stop: st%u s%08x d%08x l%08x ctl0x%08x:0x%08x\n", ++ chan->state, dmac_chan_readl_lo(dmac, channel, SAR), ++ dmac_chan_readl_lo(dmac, channel, DAR), ++ dmac_chan_readl_lo(dmac, channel, LLP), ++ dmac_chan_readl_hi(dmac, channel, CTL), ++ dmac_chan_readl_lo(dmac, channel, CTL)); ++ ++ if (chan->state == CH_STATE_BUSY) { ++ clear_channel_bit(dmac, CH_EN, channel); ++ cleanup_channel(dmac, &dmac->channel[channel]); ++ } ++ ++ return 0; ++} ++ ++ ++static void dmac_block_complete(struct dw_dma_controller *dmac) ++{ ++ struct dw_dma_channel *chan; ++ unsigned long status, chanid; ++ ++ status = dmac_readl_lo(dmac, STATUS_BLOCK); ++ ++ while (status) { ++ struct dma_request *req; ++ chanid = __ffs(status); ++ chan = &dmac->channel[chanid]; ++ ++ if (chan->is_cyclic) { ++ BUG_ON(!chan->req_cyclic ++ || !chan->req_cyclic->req.block_complete); ++ req = &chan->req_cyclic->req; ++ } else { ++ BUG_ON(!chan->req_sg || !chan->req_sg->req.block_complete); ++ req = &chan->req_sg->req; ++ } ++ dmac_writel_lo(dmac, CLEAR_BLOCK, 1 << chanid); ++ req->block_complete(req); ++ status = dmac_readl_lo(dmac, STATUS_BLOCK); ++ } ++} ++ ++static void dmac_xfer_complete(struct dw_dma_controller *dmac) ++{ ++ struct dw_dma_channel *chan; ++ struct dma_request *req; ++ unsigned long status, chanid; ++ ++ status = dmac_readl_lo(dmac, STATUS_XFER); ++ ++ while (status) { ++ chanid = __ffs(status); ++ chan = &dmac->channel[chanid]; ++ ++ dmac_writel_lo(dmac, CLEAR_XFER, 1 << chanid); ++ ++ req = &chan->req_sg->req; ++ BUG_ON(!req); ++ cleanup_channel(dmac, chan); ++ if (req->xfer_complete) ++ req->xfer_complete(req); ++ ++ status = dmac_readl_lo(dmac, STATUS_XFER); ++ } ++} ++ ++static void dmac_error(struct dw_dma_controller *dmac) ++{ ++ struct dw_dma_channel *chan; ++ unsigned long status, chanid; ++ ++ status = dmac_readl_lo(dmac, STATUS_ERROR); ++ ++ while (status) { ++ struct dma_request *req; ++ ++ chanid = __ffs(status); ++ chan = &dmac->channel[chanid]; ++ ++ dmac_writel_lo(dmac, CLEAR_ERROR, 1 << chanid); ++ clear_channel_bit(dmac, CH_EN, chanid); ++ ++ if (chan->is_cyclic) { ++ BUG_ON(!chan->req_cyclic); ++ req = &chan->req_cyclic->req; ++ } else { ++ BUG_ON(!chan->req_sg); ++ req = &chan->req_sg->req; ++ } ++ ++ cleanup_channel(dmac, chan); ++ if (req->error) ++ req->error(req); ++ ++ status = dmac_readl_lo(dmac, STATUS_XFER); ++ } ++} ++ ++static irqreturn_t dmac_interrupt(int irq, void *dev_id) ++{ ++ struct dw_dma_controller *dmac = dev_id; ++ unsigned long status; ++ int ret = IRQ_NONE; ++ ++ spin_lock(&dmac->lock); ++ ++ status = dmac_readl_lo(dmac, STATUS_INT); ++ ++ while (status) { ++ ret = IRQ_HANDLED; ++ if (status & 0x10) ++ dmac_error(dmac); ++ if (status & 0x02) ++ dmac_block_complete(dmac); ++ if (status & 0x01) ++ dmac_xfer_complete(dmac); ++ ++ status = dmac_readl_lo(dmac, STATUS_INT); ++ } ++ ++ spin_unlock(&dmac->lock); ++ return ret; ++} ++ ++static int __devinit dmac_probe(struct platform_device *pdev) ++{ ++ struct dw_dma_controller *dmac; ++ struct resource *regs; ++ int ret; ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) ++ return -ENXIO; ++ ++ dmac = kmalloc(sizeof(*dmac), GFP_KERNEL); ++ if (!dmac) ++ return -ENOMEM; ++ memset(dmac, 0, sizeof(*dmac)); ++ ++ dmac->hclk = clk_get(&pdev->dev, "hclk"); ++ if (IS_ERR(dmac->hclk)) { ++ ret = PTR_ERR(dmac->hclk); ++ goto out_free_dmac; ++ } ++ clk_enable(dmac->hclk); ++ ++ ret = -ENOMEM; ++ dmac->lli_pool = dma_pool_create("dmac", &pdev->dev, ++ sizeof(struct dw_dma_lli), 4, 0); ++ if (!dmac->lli_pool) ++ goto out_disable_clk; ++ ++ spin_lock_init(&dmac->lock); ++ dmac->dma.dev = &pdev->dev; ++ dmac->dma.alloc_channel = dmac_alloc_channel; ++ dmac->dma.release_channel = dmac_release_channel; ++ dmac->dma.prepare_request_sg = dmac_prepare_request_sg; ++ dmac->dma.prepare_request_cyclic = dmac_prepare_request_cyclic; ++ dmac->dma.start_request = dmac_start_request; ++ dmac->dma.stop_request = dmac_stop_request; ++ dmac->dma.get_current_pos = dmac_get_current_pos; ++ ++ dmac->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!dmac->regs) ++ goto out_free_pool; ++ ++ ret = request_irq(platform_get_irq(pdev, 0), dmac_interrupt, ++ IRQF_SAMPLE_RANDOM, pdev->name, dmac); ++ if (ret) ++ goto out_unmap_regs; ++ ++ /* Enable the DMA controller */ ++ dmac_writel_lo(dmac, CFG, 1); ++ ++ register_dma_controller(&dmac->dma); ++ ++ printk(KERN_INFO ++ "dmac%d: DesignWare DMA controller at 0x%p irq %d\n", ++ dmac->dma.id, dmac->regs, platform_get_irq(pdev, 0)); ++ ++ return 0; ++ ++out_unmap_regs: ++ iounmap(dmac->regs); ++out_free_pool: ++ dma_pool_destroy(dmac->lli_pool); ++out_disable_clk: ++ clk_disable(dmac->hclk); ++ clk_put(dmac->hclk); ++out_free_dmac: ++ kfree(dmac); ++ return ret; ++} ++ ++static struct platform_driver dmac_driver = { ++ .probe = dmac_probe, ++ .driver = { ++ .name = "dmaca", ++ }, ++}; ++ ++static int __init dmac_init(void) ++{ ++ return platform_driver_register(&dmac_driver); ++} ++subsys_initcall(dmac_init); ++ ++static void __exit dmac_exit(void) ++{ ++ platform_driver_unregister(&dmac_driver); ++} ++module_exit(dmac_exit); ++ ++MODULE_DESCRIPTION("Synopsys DesignWare DMA Controller driver"); ++MODULE_AUTHOR("Haavard Skinnemoen <hskinnemoen@atmel.com>"); ++MODULE_LICENSE("GPL"); +diff --git a/arch/avr32/drivers/dw-dmac.h b/arch/avr32/drivers/dw-dmac.h +new file mode 100644 +index 0000000..1f67921 +--- /dev/null ++++ b/arch/avr32/drivers/dw-dmac.h +@@ -0,0 +1,42 @@ ++/* ++ * Driver for the Synopsys DesignWare DMA Controller ++ * ++ * Copyright (C) 2005-2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#ifndef __AVR32_DW_DMAC_H__ ++#define __AVR32_DW_DMAC_H__ ++ ++#define DW_DMAC_CFG 0x398 ++#define DW_DMAC_CH_EN 0x3a0 ++ ++#define DW_DMAC_STATUS_XFER 0x2e8 ++#define DW_DMAC_STATUS_BLOCK 0x2f0 ++#define DW_DMAC_STATUS_ERROR 0x308 ++ ++#define DW_DMAC_MASK_XFER 0x310 ++#define DW_DMAC_MASK_BLOCK 0x318 ++#define DW_DMAC_MASK_ERROR 0x330 ++ ++#define DW_DMAC_CLEAR_XFER 0x338 ++#define DW_DMAC_CLEAR_BLOCK 0x340 ++#define DW_DMAC_CLEAR_ERROR 0x358 ++ ++#define DW_DMAC_STATUS_INT 0x360 ++ ++#define DW_DMAC_CHAN_SAR 0x000 ++#define DW_DMAC_CHAN_DAR 0x008 ++#define DW_DMAC_CHAN_LLP 0x010 ++#define DW_DMAC_CHAN_CTL 0x018 ++#define DW_DMAC_CHAN_SSTAT 0x020 ++#define DW_DMAC_CHAN_DSTAT 0x028 ++#define DW_DMAC_CHAN_SSTATAR 0x030 ++#define DW_DMAC_CHAN_DSTATAR 0x038 ++#define DW_DMAC_CHAN_CFG 0x040 ++#define DW_DMAC_CHAN_SGR 0x048 ++#define DW_DMAC_CHAN_DSR 0x050 ++ ++#endif /* __AVR32_DW_DMAC_H__ */ +diff --git a/arch/avr32/kernel/Makefile b/arch/avr32/kernel/Makefile +index 90e5aff..b6afc0c 100644 +--- a/arch/avr32/kernel/Makefile ++++ b/arch/avr32/kernel/Makefile +@@ -9,6 +9,7 @@ obj-y += syscall_table.o syscall-stubs.o irq.o + obj-y += setup.o traps.o semaphore.o ptrace.o + obj-y += signal.o sys_avr32.o process.o time.o + obj-y += init_task.o switch_to.o cpu.o ++obj-y += dma-controller.o + obj-$(CONFIG_MODULES) += module.o avr32_ksyms.o + obj-$(CONFIG_KPROBES) += kprobes.o + +diff --git a/arch/avr32/kernel/dma-controller.c b/arch/avr32/kernel/dma-controller.c +new file mode 100644 +index 0000000..fb654b3 +--- /dev/null ++++ b/arch/avr32/kernel/dma-controller.c +@@ -0,0 +1,34 @@ ++/* ++ * Preliminary DMA controller framework for AVR32 ++ * ++ * Copyright (C) 2005-2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#include <asm/dma-controller.h> ++ ++static LIST_HEAD(controllers); ++ ++int register_dma_controller(struct dma_controller *dmac) ++{ ++ static int next_id; ++ ++ dmac->id = next_id++; ++ list_add_tail(&dmac->list, &controllers); ++ ++ return 0; ++} ++EXPORT_SYMBOL(register_dma_controller); ++ ++struct dma_controller *find_dma_controller(int id) ++{ ++ struct dma_controller *dmac; ++ ++ list_for_each_entry(dmac, &controllers, list) ++ if (dmac->id == id) ++ return dmac; ++ return NULL; ++} ++EXPORT_SYMBOL(find_dma_controller); +diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c +index b279d66..4b4c188 100644 +--- a/arch/avr32/kernel/setup.c ++++ b/arch/avr32/kernel/setup.c +@@ -248,7 +248,7 @@ static int __init early_parse_fbmem(char *p) + + fbmem_size = memparse(p, &p); + if (*p == '@') { +- fbmem_start = memparse(p, &p); ++ fbmem_start = memparse(p + 1, &p); + ret = add_reserved_region(fbmem_start, + fbmem_start + fbmem_size - 1, + "Framebuffer"); +@@ -313,7 +313,7 @@ __tagtable(ATAG_MEM, parse_tag_mem); + + static int __init parse_tag_rdimg(struct tag *tag) + { +-#ifdef CONFIG_INITRD ++#ifdef CONFIG_BLK_DEV_INITRD + struct tag_mem_range *mem = &tag->u.mem_range; + int ret; + +@@ -323,7 +323,7 @@ static int __init parse_tag_rdimg(struct tag *tag) + return 0; + } + +- ret = add_reserved_region(mem->start, mem->start + mem->size - 1, ++ ret = add_reserved_region(mem->addr, mem->addr + mem->size - 1, + "initrd"); + if (ret) { + printk(KERN_WARNING +diff --git a/arch/avr32/mach-at32ap/Kconfig b/arch/avr32/mach-at32ap/Kconfig +index eb30783..43c5b9f 100644 +--- a/arch/avr32/mach-at32ap/Kconfig ++++ b/arch/avr32/mach-at32ap/Kconfig +@@ -26,6 +26,13 @@ config AP7000_8_BIT_SMC + + endchoice + ++config GPIO_DEV ++ bool "GPIO /dev interface" ++ select CONFIGFS_FS ++ default n ++ help ++ Say `Y' to enable a /dev interface to the GPIO pins. ++ + endmenu + + endif # PLATFORM_AT32AP +diff --git a/arch/avr32/mach-at32ap/Makefile b/arch/avr32/mach-at32ap/Makefile +index f1d3957..250372a 100644 +--- a/arch/avr32/mach-at32ap/Makefile ++++ b/arch/avr32/mach-at32ap/Makefile +@@ -1,3 +1,5 @@ + obj-y += at32ap.o clock.o intc.o extint.o pio.o hsmc.o + obj-$(CONFIG_CPU_AT32AP7000) += at32ap7000.o + obj-$(CONFIG_CPU_AT32AP7000) += time-tc.o ++obj-$(CONFIG_CPU_FREQ_AT32AP) += cpufreq.o ++obj-$(CONFIG_GPIO_DEV) += gpio-dev.o +diff --git a/arch/avr32/mach-at32ap/at32ap.c b/arch/avr32/mach-at32ap/at32ap.c +index 90f207e..7c4987f 100644 +--- a/arch/avr32/mach-at32ap/at32ap.c ++++ b/arch/avr32/mach-at32ap/at32ap.c +@@ -11,41 +11,10 @@ + #include <linux/init.h> + #include <linux/platform_device.h> + +-#include <asm/io.h> +- + #include <asm/arch/init.h> +-#include <asm/arch/sm.h> +- +-struct at32_sm system_manager; +- +-static int __init at32_sm_init(void) +-{ +- struct resource *regs; +- struct at32_sm *sm = &system_manager; +- int ret = -ENXIO; +- +- regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0); +- if (!regs) +- goto fail; +- +- spin_lock_init(&sm->lock); +- sm->pdev = &at32_sm_device; +- +- ret = -ENOMEM; +- sm->regs = ioremap(regs->start, regs->end - regs->start + 1); +- if (!sm->regs) +- goto fail; +- +- return 0; +- +-fail: +- printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret); +- return ret; +-} + + void __init setup_platform(void) + { +- at32_sm_init(); + at32_clock_init(); + at32_portmux_init(); + } +diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c +index 4dda42d..59555d8 100644 +--- a/arch/avr32/mach-at32ap/at32ap7000.c ++++ b/arch/avr32/mach-at32ap/at32ap7000.c +@@ -17,14 +17,14 @@ + #include <asm/arch/at32ap7000.h> + #include <asm/arch/board.h> + #include <asm/arch/portmux.h> +-#include <asm/arch/sm.h> + + #include <video/atmel_lcdc.h> + + #include "clock.h" + #include "hmatrix.h" + #include "pio.h" +-#include "sm.h" ++#include "pm.h" ++ + + #define PBMEM(base) \ + { \ +@@ -88,6 +88,8 @@ static struct clk devname##_##_name = { \ + .index = _index, \ + } + ++static DEFINE_SPINLOCK(pm_lock); ++ + unsigned long at32ap7000_osc_rates[3] = { + [0] = 32768, + /* FIXME: these are ATSTK1002-specific */ +@@ -104,11 +106,11 @@ static unsigned long pll_get_rate(struct clk *clk, unsigned long control) + { + unsigned long div, mul, rate; + +- if (!(control & SM_BIT(PLLEN))) ++ if (!(control & PM_BIT(PLLEN))) + return 0; + +- div = SM_BFEXT(PLLDIV, control) + 1; +- mul = SM_BFEXT(PLLMUL, control) + 1; ++ div = PM_BFEXT(PLLDIV, control) + 1; ++ mul = PM_BFEXT(PLLMUL, control) + 1; + + rate = clk->parent->get_rate(clk->parent); + rate = (rate + div / 2) / div; +@@ -121,7 +123,7 @@ static unsigned long pll0_get_rate(struct clk *clk) + { + u32 control; + +- control = sm_readl(&system_manager, PM_PLL0); ++ control = pm_readl(PLL0); + + return pll_get_rate(clk, control); + } +@@ -130,7 +132,7 @@ static unsigned long pll1_get_rate(struct clk *clk) + { + u32 control; + +- control = sm_readl(&system_manager, PM_PLL1); ++ control = pm_readl(PLL1); + + return pll_get_rate(clk, control); + } +@@ -187,108 +189,139 @@ static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift) + + static void cpu_clk_mode(struct clk *clk, int enabled) + { +- struct at32_sm *sm = &system_manager; + unsigned long flags; + u32 mask; + +- spin_lock_irqsave(&sm->lock, flags); +- mask = sm_readl(sm, PM_CPU_MASK); ++ spin_lock_irqsave(&pm_lock, flags); ++ mask = pm_readl(CPU_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); +- sm_writel(sm, PM_CPU_MASK, mask); +- spin_unlock_irqrestore(&sm->lock, flags); ++ pm_writel(CPU_MASK, mask); ++ spin_unlock_irqrestore(&pm_lock, flags); + } + + static unsigned long cpu_clk_get_rate(struct clk *clk) + { + unsigned long cksel, shift = 0; + +- cksel = sm_readl(&system_manager, PM_CKSEL); +- if (cksel & SM_BIT(CPUDIV)) +- shift = SM_BFEXT(CPUSEL, cksel) + 1; ++ cksel = pm_readl(CKSEL); ++ if (cksel & PM_BIT(CPUDIV)) ++ shift = PM_BFEXT(CPUSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); + } + ++static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply) ++{ ++ u32 control; ++ unsigned long parent_rate, child_div, actual_rate, div; ++ ++ parent_rate = clk->parent->get_rate(clk->parent); ++ control = pm_readl(CKSEL); ++ ++ if (control & PM_BIT(HSBDIV)) ++ child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1); ++ else ++ child_div = 1; ++ ++ if (rate > 3 * (parent_rate / 4) || child_div == 1) { ++ actual_rate = parent_rate; ++ control &= ~PM_BIT(CPUDIV); ++ } else { ++ unsigned int cpusel; ++ div = (parent_rate + rate / 2) / rate; ++ if (div > child_div) ++ div = child_div; ++ cpusel = (div > 1) ? (fls(div) - 2) : 0; ++ control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control); ++ actual_rate = parent_rate / (1 << (cpusel + 1)); ++ } ++ ++ pr_debug("clk %s: new rate %lu (actual rate %lu)\n", ++ clk->name, rate, actual_rate); ++ ++ if (apply) ++ pm_writel(CKSEL, control); ++ ++ return actual_rate; ++} ++ + static void hsb_clk_mode(struct clk *clk, int enabled) + { +- struct at32_sm *sm = &system_manager; + unsigned long flags; + u32 mask; + +- spin_lock_irqsave(&sm->lock, flags); +- mask = sm_readl(sm, PM_HSB_MASK); ++ spin_lock_irqsave(&pm_lock, flags); ++ mask = pm_readl(HSB_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); +- sm_writel(sm, PM_HSB_MASK, mask); +- spin_unlock_irqrestore(&sm->lock, flags); ++ pm_writel(HSB_MASK, mask); ++ spin_unlock_irqrestore(&pm_lock, flags); + } + + static unsigned long hsb_clk_get_rate(struct clk *clk) + { + unsigned long cksel, shift = 0; + +- cksel = sm_readl(&system_manager, PM_CKSEL); +- if (cksel & SM_BIT(HSBDIV)) +- shift = SM_BFEXT(HSBSEL, cksel) + 1; ++ cksel = pm_readl(CKSEL); ++ if (cksel & PM_BIT(HSBDIV)) ++ shift = PM_BFEXT(HSBSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); + } + + static void pba_clk_mode(struct clk *clk, int enabled) + { +- struct at32_sm *sm = &system_manager; + unsigned long flags; + u32 mask; + +- spin_lock_irqsave(&sm->lock, flags); +- mask = sm_readl(sm, PM_PBA_MASK); ++ spin_lock_irqsave(&pm_lock, flags); ++ mask = pm_readl(PBA_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); +- sm_writel(sm, PM_PBA_MASK, mask); +- spin_unlock_irqrestore(&sm->lock, flags); ++ pm_writel(PBA_MASK, mask); ++ spin_unlock_irqrestore(&pm_lock, flags); + } + + static unsigned long pba_clk_get_rate(struct clk *clk) + { + unsigned long cksel, shift = 0; + +- cksel = sm_readl(&system_manager, PM_CKSEL); +- if (cksel & SM_BIT(PBADIV)) +- shift = SM_BFEXT(PBASEL, cksel) + 1; ++ cksel = pm_readl(CKSEL); ++ if (cksel & PM_BIT(PBADIV)) ++ shift = PM_BFEXT(PBASEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); + } + + static void pbb_clk_mode(struct clk *clk, int enabled) + { +- struct at32_sm *sm = &system_manager; + unsigned long flags; + u32 mask; + +- spin_lock_irqsave(&sm->lock, flags); +- mask = sm_readl(sm, PM_PBB_MASK); ++ spin_lock_irqsave(&pm_lock, flags); ++ mask = pm_readl(PBB_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); +- sm_writel(sm, PM_PBB_MASK, mask); +- spin_unlock_irqrestore(&sm->lock, flags); ++ pm_writel(PBB_MASK, mask); ++ spin_unlock_irqrestore(&pm_lock, flags); + } + + static unsigned long pbb_clk_get_rate(struct clk *clk) + { + unsigned long cksel, shift = 0; + +- cksel = sm_readl(&system_manager, PM_CKSEL); +- if (cksel & SM_BIT(PBBDIV)) +- shift = SM_BFEXT(PBBSEL, cksel) + 1; ++ cksel = pm_readl(CKSEL); ++ if (cksel & PM_BIT(PBBDIV)) ++ shift = PM_BFEXT(PBBSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); + } +@@ -296,6 +329,7 @@ static unsigned long pbb_clk_get_rate(struct clk *clk) + static struct clk cpu_clk = { + .name = "cpu", + .get_rate = cpu_clk_get_rate, ++ .set_rate = cpu_clk_set_rate, + .users = 1, + }; + static struct clk hsb_clk = { +@@ -327,12 +361,12 @@ static void genclk_mode(struct clk *clk, int enabled) + { + u32 control; + +- control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); ++ control = pm_readl(GCCTRL(clk->index)); + if (enabled) +- control |= SM_BIT(CEN); ++ control |= PM_BIT(CEN); + else +- control &= ~SM_BIT(CEN); +- sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control); ++ control &= ~PM_BIT(CEN); ++ pm_writel(GCCTRL(clk->index), control); + } + + static unsigned long genclk_get_rate(struct clk *clk) +@@ -340,9 +374,9 @@ static unsigned long genclk_get_rate(struct clk *clk) + u32 control; + unsigned long div = 1; + +- control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); +- if (control & SM_BIT(DIVEN)) +- div = 2 * (SM_BFEXT(DIV, control) + 1); ++ control = pm_readl(GCCTRL(clk->index)); ++ if (control & PM_BIT(DIVEN)) ++ div = 2 * (PM_BFEXT(DIV, control) + 1); + + return clk->parent->get_rate(clk->parent) / div; + } +@@ -353,23 +387,22 @@ static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply) + unsigned long parent_rate, actual_rate, div; + + parent_rate = clk->parent->get_rate(clk->parent); +- control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); ++ control = pm_readl(GCCTRL(clk->index)); + + if (rate > 3 * parent_rate / 4) { + actual_rate = parent_rate; +- control &= ~SM_BIT(DIVEN); ++ control &= ~PM_BIT(DIVEN); + } else { + div = (parent_rate + rate) / (2 * rate) - 1; +- control = SM_BFINS(DIV, div, control) | SM_BIT(DIVEN); ++ control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN); + actual_rate = parent_rate / (2 * (div + 1)); + } + +- printk("clk %s: new rate %lu (actual rate %lu)\n", +- clk->name, rate, actual_rate); ++ dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n", ++ clk->name, rate, actual_rate); + + if (apply) +- sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, +- control); ++ pm_writel(GCCTRL(clk->index), control); + + return actual_rate; + } +@@ -378,24 +411,24 @@ int genclk_set_parent(struct clk *clk, struct clk *parent) + { + u32 control; + +- printk("clk %s: new parent %s (was %s)\n", +- clk->name, parent->name, clk->parent->name); ++ dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n", ++ clk->name, parent->name, clk->parent->name); + +- control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); ++ control = pm_readl(GCCTRL(clk->index)); + + if (parent == &osc1 || parent == &pll1) +- control |= SM_BIT(OSCSEL); ++ control |= PM_BIT(OSCSEL); + else if (parent == &osc0 || parent == &pll0) +- control &= ~SM_BIT(OSCSEL); ++ control &= ~PM_BIT(OSCSEL); + else + return -EINVAL; + + if (parent == &pll0 || parent == &pll1) +- control |= SM_BIT(PLLSEL); ++ control |= PM_BIT(PLLSEL); + else +- control &= ~SM_BIT(PLLSEL); ++ control &= ~PM_BIT(PLLSEL); + +- sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control); ++ pm_writel(GCCTRL(clk->index), control); + clk->parent = parent; + + return 0; +@@ -408,11 +441,11 @@ static void __init genclk_init_parent(struct clk *clk) + + BUG_ON(clk->index > 7); + +- control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); +- if (control & SM_BIT(OSCSEL)) +- parent = (control & SM_BIT(PLLSEL)) ? &pll1 : &osc1; ++ control = pm_readl(GCCTRL(clk->index)); ++ if (control & PM_BIT(OSCSEL)) ++ parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1; + else +- parent = (control & SM_BIT(PLLSEL)) ? &pll0 : &osc0; ++ parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0; + + clk->parent = parent; + } +@@ -420,21 +453,53 @@ static void __init genclk_init_parent(struct clk *clk) + /* -------------------------------------------------------------------- + * System peripherals + * -------------------------------------------------------------------- */ +-static struct resource sm_resource[] = { +- PBMEM(0xfff00000), +- NAMED_IRQ(19, "eim"), +- NAMED_IRQ(20, "pm"), +- NAMED_IRQ(21, "rtc"), +-}; +-struct platform_device at32_sm_device = { +- .name = "sm", +- .id = 0, +- .resource = sm_resource, +- .num_resources = ARRAY_SIZE(sm_resource), ++static struct resource at32_pm0_resource[] = { ++ { ++ .start = 0xfff00000, ++ .end = 0xfff0007f, ++ .flags = IORESOURCE_MEM, ++ }, ++ IRQ(20), ++}; ++ ++static struct resource at32ap700x_rtc0_resource[] = { ++ { ++ .start = 0xfff00080, ++ .end = 0xfff000af, ++ .flags = IORESOURCE_MEM, ++ }, ++ IRQ(21), ++}; ++ ++static struct resource at32_wdt0_resource[] = { ++ { ++ .start = 0xfff000b0, ++ .end = 0xfff000bf, ++ .flags = IORESOURCE_MEM, ++ }, + }; +-static struct clk at32_sm_pclk = { ++ ++static struct resource at32_eic0_resource[] = { ++ { ++ .start = 0xfff00100, ++ .end = 0xfff0013f, ++ .flags = IORESOURCE_MEM, ++ }, ++ IRQ(19), ++}; ++ ++DEFINE_DEV(at32_pm, 0); ++DEFINE_DEV(at32ap700x_rtc, 0); ++DEFINE_DEV(at32_wdt, 0); ++DEFINE_DEV(at32_eic, 0); ++ ++/* ++ * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this ++ * is always running. ++ */ ++static struct clk at32_pm_pclk = { + .name = "pclk", +- .dev = &at32_sm_device.dev, ++ .dev = &at32_pm0_device.dev, + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, +@@ -491,6 +556,17 @@ static struct clk pico_clk = { + .users = 1, + }; + ++static struct resource dmaca0_resource[] = { ++ { ++ .start = 0xff200000, ++ .end = 0xff20ffff, ++ .flags = IORESOURCE_MEM, ++ }, ++ IRQ(2), ++}; ++DEFINE_DEV(dmaca, 0); ++DEV_CLK(hclk, dmaca0, hsb, 10); ++ + /* -------------------------------------------------------------------- + * HMATRIX + * -------------------------------------------------------------------- */ +@@ -583,12 +659,14 @@ DEV_CLK(mck, pio4, pba, 14); + + void __init at32_add_system_devices(void) + { +- system_manager.eim_first_irq = EIM_IRQ_BASE; +- +- platform_device_register(&at32_sm_device); ++ platform_device_register(&at32_pm0_device); + platform_device_register(&at32_intc0_device); ++ platform_device_register(&at32ap700x_rtc0_device); ++ platform_device_register(&at32_wdt0_device); ++ platform_device_register(&at32_eic0_device); + platform_device_register(&smc0_device); + platform_device_register(&pdc_device); ++ platform_device_register(&dmaca0_device); + + platform_device_register(&at32_systc0_device); + +@@ -894,6 +972,83 @@ at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n) + } + + /* -------------------------------------------------------------------- ++ * TWI ++ * -------------------------------------------------------------------- */ ++ ++static struct resource atmel_twi0_resource[] = { ++ PBMEM(0xffe00800), ++ IRQ(5), ++}; ++DEFINE_DEV(atmel_twi, 0); ++DEV_CLK(pclk,atmel_twi0,pba,2); ++ ++struct platform_device *__init ++at32_add_device_twi(unsigned int id) ++{ ++ struct platform_device *pdev; ++ ++ switch (id) { ++ case 0: ++ pdev = &atmel_twi0_device; ++ select_peripheral(PA(6), PERIPH_A, 0); /* SDA */ ++ select_peripheral(PA(7), PERIPH_A, 0); /* SCL */ ++ break; ++ ++ default: ++ return NULL; ++ } ++ ++ platform_device_register(pdev); ++ return pdev; ++} ++ ++/* -------------------------------------------------------------------- ++ * MMC ++ * -------------------------------------------------------------------- */ ++static struct mci_platform_data atmel_mci0_data = { ++ .detect_pin = GPIO_PIN_NONE, ++ .wp_pin = GPIO_PIN_NONE, ++}; ++static struct resource atmel_mci0_resource[] = { ++ PBMEM(0xfff02400), ++ IRQ(28), ++}; ++DEFINE_DEV_DATA(atmel_mci, 0); ++DEV_CLK(mci_clk, atmel_mci0, pbb, 9); ++ ++struct platform_device *__init ++at32_add_device_mci(unsigned int id, struct mci_platform_data *data) ++{ ++ struct platform_device *pdev; ++ ++ switch (id) { ++ case 0: ++ pdev = &atmel_mci0_device; ++ select_peripheral(PA(10), PERIPH_A, 0); /* CLK */ ++ select_peripheral(PA(11), PERIPH_A, 0); /* CMD */ ++ select_peripheral(PA(12), PERIPH_A, 0); /* DATA0 */ ++ select_peripheral(PA(13), PERIPH_A, 0); /* DATA1 */ ++ select_peripheral(PA(14), PERIPH_A, 0); /* DATA2 */ ++ select_peripheral(PA(15), PERIPH_A, 0); /* DATA3 */ ++ break; ++ default: ++ return NULL; ++ } ++ ++ if (data) { ++ if (data->detect_pin != GPIO_PIN_NONE) ++ at32_select_gpio(data->detect_pin, 0); ++ if (data->wp_pin != GPIO_PIN_NONE) ++ at32_select_gpio(data->wp_pin, 0); ++ memcpy(pdev->dev.platform_data, data, ++ sizeof(struct mci_platform_data)); ++ } ++ ++ platform_device_register(pdev); ++ return pdev; ++} ++ ++/* -------------------------------------------------------------------- + * LCDC + * -------------------------------------------------------------------- */ + static struct atmel_lcdfb_info atmel_lcdfb0_data; +@@ -1013,6 +1168,228 @@ err_dup_modedb: + } + + /* -------------------------------------------------------------------- ++ * USB Device Controller ++ * -------------------------------------------------------------------- */ ++static struct resource usba0_resource[] __initdata = { ++ { ++ .name = "fifo", ++ .start = 0xff300000, ++ .end = 0xff3fffff, ++ .flags = IORESOURCE_MEM, ++ }, { ++ .name = "regs", ++ .start = 0xfff03000, ++ .end = 0xfff033ff, ++ .flags = IORESOURCE_MEM, ++ }, ++ IRQ(31), ++}; ++static struct clk usba0_pclk = { ++ .name = "pclk", ++ .parent = &pbb_clk, ++ .mode = pbb_clk_mode, ++ .get_rate = pbb_clk_get_rate, ++ .index = 12, ++}; ++static struct clk usba0_hclk = { ++ .name = "hclk", ++ .parent = &hsb_clk, ++ .mode = hsb_clk_mode, ++ .get_rate = hsb_clk_get_rate, ++ .index = 6, ++}; ++ ++struct platform_device *__init ++at32_add_device_usba(unsigned int id, struct usba_platform_data *data) ++{ ++ struct platform_device *pdev; ++ ++ if (id != 0) ++ return NULL; ++ ++ pdev = platform_device_alloc("atmel_usba_udc", 0); ++ if (!pdev) ++ return NULL; ++ ++ if (platform_device_add_resources(pdev, usba0_resource, ++ ARRAY_SIZE(usba0_resource))) ++ goto out_free_pdev; ++ ++ if (data) { ++ if (platform_device_add_data(pdev, data, sizeof(*data))) ++ goto out_free_pdev; ++ ++ if (data->vbus_pin != GPIO_PIN_NONE) ++ at32_select_gpio(data->vbus_pin, 0); ++ } ++ ++ usba0_pclk.dev = &pdev->dev; ++ usba0_hclk.dev = &pdev->dev; ++ ++ platform_device_add(pdev); ++ ++ return pdev; ++ ++out_free_pdev: ++ platform_device_put(pdev); ++ return NULL; ++} ++ ++/* -------------------------------------------------------------------- ++ * SSC ++ * -------------------------------------------------------------------- */ ++static struct resource ssc0_resource[] = { ++ PBMEM(0xffe01c00), ++ IRQ(10), ++}; ++DEFINE_DEV(ssc, 0); ++DEV_CLK(pclk, ssc0, pba, 7); ++ ++static struct resource ssc1_resource[] = { ++ PBMEM(0xffe02000), ++ IRQ(11), ++}; ++DEFINE_DEV(ssc, 1); ++DEV_CLK(pclk, ssc1, pba, 8); ++ ++static struct resource ssc2_resource[] = { ++ PBMEM(0xffe02400), ++ IRQ(12), ++}; ++DEFINE_DEV(ssc, 2); ++DEV_CLK(pclk, ssc2, pba, 9); ++ ++struct platform_device *__init ++at32_add_device_ssc(unsigned int id, unsigned int flags) ++{ ++ struct platform_device *pdev; ++ ++ switch (id) { ++ case 0: ++ pdev = &ssc0_device; ++ if (flags & ATMEL_SSC_RF) ++ select_peripheral(PA(21), PERIPH_A, 0); /* RF */ ++ if (flags & ATMEL_SSC_RK) ++ select_peripheral(PA(22), PERIPH_A, 0); /* RK */ ++ if (flags & ATMEL_SSC_TK) ++ select_peripheral(PA(23), PERIPH_A, 0); /* TK */ ++ if (flags & ATMEL_SSC_TF) ++ select_peripheral(PA(24), PERIPH_A, 0); /* TF */ ++ if (flags & ATMEL_SSC_TD) ++ select_peripheral(PA(25), PERIPH_A, 0); /* TD */ ++ if (flags & ATMEL_SSC_RD) ++ select_peripheral(PA(26), PERIPH_A, 0); /* RD */ ++ break; ++ case 1: ++ pdev = &ssc1_device; ++ if (flags & ATMEL_SSC_RF) ++ select_peripheral(PA(0), PERIPH_B, 0); /* RF */ ++ if (flags & ATMEL_SSC_RK) ++ select_peripheral(PA(1), PERIPH_B, 0); /* RK */ ++ if (flags & ATMEL_SSC_TK) ++ select_peripheral(PA(2), PERIPH_B, 0); /* TK */ ++ if (flags & ATMEL_SSC_TF) ++ select_peripheral(PA(3), PERIPH_B, 0); /* TF */ ++ if (flags & ATMEL_SSC_TD) ++ select_peripheral(PA(4), PERIPH_B, 0); /* TD */ ++ if (flags & ATMEL_SSC_RD) ++ select_peripheral(PA(5), PERIPH_B, 0); /* RD */ ++ break; ++ case 2: ++ pdev = &ssc2_device; ++ if (flags & ATMEL_SSC_TD) ++ select_peripheral(PB(13), PERIPH_A, 0); /* TD */ ++ if (flags & ATMEL_SSC_RD) ++ select_peripheral(PB(14), PERIPH_A, 0); /* RD */ ++ if (flags & ATMEL_SSC_TK) ++ select_peripheral(PB(15), PERIPH_A, 0); /* TK */ ++ if (flags & ATMEL_SSC_TF) ++ select_peripheral(PB(16), PERIPH_A, 0); /* TF */ ++ if (flags & ATMEL_SSC_RF) ++ select_peripheral(PB(17), PERIPH_A, 0); /* RF */ ++ if (flags & ATMEL_SSC_RK) ++ select_peripheral(PB(18), PERIPH_A, 0); /* RK */ ++ break; ++ default: ++ return NULL; ++ } ++ ++ platform_device_register(pdev); ++ return pdev; ++} ++ ++/* -------------------------------------------------------------------- ++ * AC97C ++ * -------------------------------------------------------------------- */ ++static struct resource atmel_ac97c0_resource[] = { ++ PBMEM(0xfff02800), ++ IRQ(29), ++}; ++DEFINE_DEV(atmel_ac97c, 0); ++DEV_CLK(pclk, atmel_ac97c0, pbb, 10); ++ ++struct platform_device *__init ++at32_add_device_ac97c(unsigned int id) ++{ ++ struct platform_device *pdev; ++ ++ switch (id) { ++ case 0: ++ pdev = &atmel_ac97c0_device; ++ select_peripheral(PB(20), PERIPH_B, 0); /* SYNC */ ++ select_peripheral(PB(21), PERIPH_B, 0); /* SDO */ ++ select_peripheral(PB(22), PERIPH_B, 0); /* SDI */ ++ select_peripheral(PB(23), PERIPH_B, 0); /* SCLK */ ++ break; ++ default: ++ return NULL; ++ } ++ ++ platform_device_register(pdev); ++ return pdev; ++} ++ ++/* -------------------------------------------------------------------- ++ * DAC ++ * -------------------------------------------------------------------- */ ++static struct resource abdac0_resource[] = { ++ PBMEM(0xfff02000), ++ IRQ(27), ++}; ++DEFINE_DEV(abdac, 0); ++DEV_CLK(pclk, abdac0, pbb, 8); ++static struct clk abdac0_sample_clk = { ++ .name = "sample_clk", ++ .dev = &abdac0_device.dev, ++ .mode = genclk_mode, ++ .get_rate = genclk_get_rate, ++ .set_rate = genclk_set_rate, ++ .set_parent = genclk_set_parent, ++ .index = 6, ++}; ++ ++struct platform_device *__init ++at32_add_device_abdac(unsigned int id) ++{ ++ struct platform_device *pdev; ++ ++ switch (id) { ++ case 0: ++ pdev = &abdac0_device; ++ select_peripheral(PB(20), PERIPH_A, 0); /* DATA1 */ ++ select_peripheral(PB(21), PERIPH_A, 0); /* DATA0 */ ++ select_peripheral(PB(22), PERIPH_A, 0); /* DATAN1 */ ++ select_peripheral(PB(23), PERIPH_A, 0); /* DATAN0 */ ++ break; ++ default: ++ return NULL; ++ } ++ ++ platform_device_register(pdev); ++ return pdev; ++} ++ ++/* -------------------------------------------------------------------- + * GCLK + * -------------------------------------------------------------------- */ + static struct clk gclk0 = { +@@ -1066,7 +1443,7 @@ struct clk *at32_clock_list[] = { + &hsb_clk, + &pba_clk, + &pbb_clk, +- &at32_sm_pclk, ++ &at32_pm_pclk, + &at32_intc0_pclk, + &hmatrix_clk, + &ebi_clk, +@@ -1075,6 +1452,7 @@ struct clk *at32_clock_list[] = { + &smc0_mck, + &pdc_hclk, + &pdc_pclk, ++ &dmaca0_hclk, + &pico_clk, + &pio0_mck, + &pio1_mck, +@@ -1092,8 +1470,18 @@ struct clk *at32_clock_list[] = { + &macb1_pclk, + &atmel_spi0_spi_clk, + &atmel_spi1_spi_clk, ++ &atmel_twi0_pclk, ++ &atmel_mci0_mci_clk, + &atmel_lcdfb0_hck1, + &atmel_lcdfb0_pixclk, ++ &usba0_pclk, ++ &usba0_hclk, ++ &ssc0_pclk, ++ &ssc1_pclk, ++ &ssc2_pclk, ++ &atmel_ac97c0_pclk, ++ &abdac0_pclk, ++ &abdac0_sample_clk, + &gclk0, + &gclk1, + &gclk2, +@@ -1113,18 +1501,20 @@ void __init at32_portmux_init(void) + + void __init at32_clock_init(void) + { +- struct at32_sm *sm = &system_manager; + u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0; + int i; + +- if (sm_readl(sm, PM_MCCTRL) & SM_BIT(PLLSEL)) ++ if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) { + main_clock = &pll0; +- else ++ cpu_clk.parent = &pll0; ++ } else { + main_clock = &osc0; ++ cpu_clk.parent = &osc0; ++ } + +- if (sm_readl(sm, PM_PLL0) & SM_BIT(PLLOSC)) ++ if (pm_readl(PLL0) & PM_BIT(PLLOSC)) + pll0.parent = &osc1; +- if (sm_readl(sm, PM_PLL1) & SM_BIT(PLLOSC)) ++ if (pm_readl(PLL1) & PM_BIT(PLLOSC)) + pll1.parent = &osc1; + + genclk_init_parent(&gclk0); +@@ -1133,6 +1523,7 @@ void __init at32_clock_init(void) + genclk_init_parent(&gclk3); + genclk_init_parent(&gclk4); + genclk_init_parent(&atmel_lcdfb0_pixclk); ++ genclk_init_parent(&abdac0_sample_clk); + + /* + * Turn on all clocks that have at least one user already, and +@@ -1157,8 +1548,8 @@ void __init at32_clock_init(void) + pbb_mask |= 1 << clk->index; + } + +- sm_writel(sm, PM_CPU_MASK, cpu_mask); +- sm_writel(sm, PM_HSB_MASK, hsb_mask); +- sm_writel(sm, PM_PBA_MASK, pba_mask); +- sm_writel(sm, PM_PBB_MASK, pbb_mask); ++ pm_writel(CPU_MASK, cpu_mask); ++ pm_writel(HSB_MASK, hsb_mask); ++ pm_writel(PBA_MASK, pba_mask); ++ pm_writel(PBB_MASK, pbb_mask); + } +diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c +index 0f8c89c..4642117 100644 +--- a/arch/avr32/mach-at32ap/clock.c ++++ b/arch/avr32/mach-at32ap/clock.c +@@ -150,3 +150,119 @@ struct clk *clk_get_parent(struct clk *clk) + return clk->parent; + } + EXPORT_SYMBOL(clk_get_parent); ++ ++ ++ ++#ifdef CONFIG_DEBUG_FS ++ ++/* /sys/kernel/debug/at32ap_clk */ ++ ++#include <linux/io.h> ++#include <linux/debugfs.h> ++#include <linux/seq_file.h> ++#include "pm.h" ++ ++ ++#define NEST_DELTA 2 ++#define NEST_MAX 6 ++ ++struct clkinf { ++ struct seq_file *s; ++ unsigned nest; ++}; ++ ++static void ++dump_clock(struct clk *parent, struct clkinf *r) ++{ ++ unsigned nest = r->nest; ++ char buf[16 + NEST_MAX]; ++ struct clk *clk; ++ unsigned i; ++ ++ /* skip clocks coupled to devices that aren't registered */ ++ if (parent->dev && !parent->dev->bus_id[0] && !parent->users) ++ return; ++ ++ /* <nest spaces> name <pad to end> */ ++ memset(buf, ' ', sizeof(buf) - 1); ++ buf[sizeof(buf) - 1] = 0; ++ i = strlen(parent->name); ++ memcpy(buf + nest, parent->name, ++ min(i, (unsigned)(sizeof(buf) - 1 - nest))); ++ ++ seq_printf(r->s, "%s%c users=%2d %-3s %9ld Hz", ++ buf, parent->set_parent ? '*' : ' ', ++ parent->users, ++ parent->users ? "on" : "off", /* NOTE: not-paranoid!! */ ++ clk_get_rate(parent)); ++ if (parent->dev) ++ seq_printf(r->s, ", for %s", parent->dev->bus_id); ++ seq_printf(r->s, "\n"); ++ ++ /* cost of this scan is small, but not linear... */ ++ r->nest = nest + NEST_DELTA; ++ for (i = 3; i < at32_nr_clocks; i++) { ++ clk = at32_clock_list[i]; ++ if (clk->parent == parent) ++ dump_clock(clk, r); ++ } ++ r->nest = nest; ++} ++ ++static int clk_show(struct seq_file *s, void *unused) ++{ ++ struct clkinf r; ++ int i; ++ ++ /* show all the power manager registers */ ++ seq_printf(s, "MCCTRL = %8x\n", pm_readl(MCCTRL)); ++ seq_printf(s, "CKSEL = %8x\n", pm_readl(CKSEL)); ++ seq_printf(s, "CPUMASK = %8x\n", pm_readl(CPU_MASK)); ++ seq_printf(s, "HSBMASK = %8x\n", pm_readl(HSB_MASK)); ++ seq_printf(s, "PBAMASK = %8x\n", pm_readl(PBA_MASK)); ++ seq_printf(s, "PBBMASK = %8x\n", pm_readl(PBB_MASK)); ++ seq_printf(s, "PLL0 = %8x\n", pm_readl(PLL0)); ++ seq_printf(s, "PLL1 = %8x\n", pm_readl(PLL1)); ++ seq_printf(s, "IMR = %8x\n", pm_readl(IMR)); ++ for (i = 0; i < 8; i++) { ++ if (i == 5) ++ continue; ++ seq_printf(s, "GCCTRL%d = %8x\n", i, pm_readl(GCCTRL(i))); ++ } ++ ++ seq_printf(s, "\n"); ++ ++ /* show clock tree as derived from the three oscillators ++ * we "know" are at the head of the list ++ */ ++ r.s = s; ++ r.nest = 0; ++ dump_clock(at32_clock_list[0], &r); ++ dump_clock(at32_clock_list[1], &r); ++ dump_clock(at32_clock_list[2], &r); ++ ++ return 0; ++} ++ ++static int clk_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, clk_show, NULL); ++} ++ ++static const struct file_operations clk_operations = { ++ .open = clk_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++}; ++ ++static int __init clk_debugfs_init(void) ++{ ++ (void) debugfs_create_file("at32ap_clk", S_IFREG | S_IRUGO, ++ NULL, NULL, &clk_operations); ++ ++ return 0; ++} ++postcore_initcall(clk_debugfs_init); ++ ++#endif +diff --git a/arch/avr32/mach-at32ap/cpufreq.c b/arch/avr32/mach-at32ap/cpufreq.c +new file mode 100644 +index 0000000..235524b +--- /dev/null ++++ b/arch/avr32/mach-at32ap/cpufreq.c +@@ -0,0 +1,112 @@ ++/* ++ * Copyright (C) 2004-2007 Atmel Corporation ++ * ++ * Based on MIPS implementation arch/mips/kernel/time.c ++ * Copyright 2001 MontaVista Software Inc. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/*#define DEBUG*/ ++ ++#include <linux/kernel.h> ++#include <linux/types.h> ++#include <linux/init.h> ++#include <linux/cpufreq.h> ++#include <linux/io.h> ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <asm/system.h> ++ ++static struct clk *cpuclk; ++ ++static int at32_verify_speed(struct cpufreq_policy *policy) ++{ ++ if (policy->cpu != 0) ++ return -EINVAL; ++ ++ cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, ++ policy->cpuinfo.max_freq); ++ return 0; ++} ++ ++static unsigned int at32_get_speed(unsigned int cpu) ++{ ++ /* No SMP support */ ++ if (cpu) ++ return 0; ++ return (unsigned int)((clk_get_rate(cpuclk) + 500) / 1000); ++} ++ ++static int at32_set_target(struct cpufreq_policy *policy, ++ unsigned int target_freq, ++ unsigned int relation) ++{ ++ struct cpufreq_freqs freqs; ++ long freq; ++ ++ /* Convert target_freq from kHz to Hz */ ++ freq = clk_round_rate(cpuclk, target_freq * 1000); ++ ++ /* Check if policy->min <= new_freq <= policy->max */ ++ if(freq < (policy->min * 1000) || freq > (policy->max * 1000)) ++ return -EINVAL; ++ ++ pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000); ++ ++ freqs.old = at32_get_speed(0); ++ freqs.new = (freq + 500) / 1000; ++ freqs.cpu = 0; ++ freqs.flags = 0; ++ ++ cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); ++ clk_set_rate(cpuclk, freq); ++ cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); ++ ++ pr_debug("cpufreq: set frequency %lu Hz\n", freq); ++ ++ return 0; ++} ++ ++static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) ++{ ++ if (policy->cpu != 0) ++ return -EINVAL; ++ ++ cpuclk = clk_get(NULL, "cpu"); ++ if (IS_ERR(cpuclk)) { ++ pr_debug("cpufreq: could not get CPU clk\n"); ++ return PTR_ERR(cpuclk); ++ } ++ ++ policy->cpuinfo.min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000; ++ policy->cpuinfo.max_freq = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; ++ policy->cpuinfo.transition_latency = 0; ++ policy->cur = at32_get_speed(0); ++ policy->min = policy->cpuinfo.min_freq; ++ policy->max = policy->cpuinfo.max_freq; ++ policy->governor = CPUFREQ_DEFAULT_GOVERNOR; ++ ++ printk("cpufreq: AT32AP CPU frequency driver\n"); ++ ++ return 0; ++} ++ ++static struct cpufreq_driver at32_driver = { ++ .name = "at32ap", ++ .owner = THIS_MODULE, ++ .init = at32_cpufreq_driver_init, ++ .verify = at32_verify_speed, ++ .target = at32_set_target, ++ .get = at32_get_speed, ++ .flags = CPUFREQ_STICKY, ++}; ++ ++static int __init at32_cpufreq_init(void) ++{ ++ return cpufreq_register_driver(&at32_driver); ++} ++ ++arch_initcall(at32_cpufreq_init); +diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c +index 4a60ecc..8acd010 100644 +--- a/arch/avr32/mach-at32ap/extint.c ++++ b/arch/avr32/mach-at32ap/extint.c +@@ -17,42 +17,83 @@ + + #include <asm/io.h> + +-#include <asm/arch/sm.h> +- +-#include "sm.h" ++/* EIC register offsets */ ++#define EIC_IER 0x0000 ++#define EIC_IDR 0x0004 ++#define EIC_IMR 0x0008 ++#define EIC_ISR 0x000c ++#define EIC_ICR 0x0010 ++#define EIC_MODE 0x0014 ++#define EIC_EDGE 0x0018 ++#define EIC_LEVEL 0x001c ++#define EIC_TEST 0x0020 ++#define EIC_NMIC 0x0024 ++ ++/* Bitfields in TEST */ ++#define EIC_TESTEN_OFFSET 31 ++#define EIC_TESTEN_SIZE 1 ++ ++/* Bitfields in NMIC */ ++#define EIC_EN_OFFSET 0 ++#define EIC_EN_SIZE 1 ++ ++/* Bit manipulation macros */ ++#define EIC_BIT(name) \ ++ (1 << EIC_##name##_OFFSET) ++#define EIC_BF(name,value) \ ++ (((value) & ((1 << EIC_##name##_SIZE) - 1)) \ ++ << EIC_##name##_OFFSET) ++#define EIC_BFEXT(name,value) \ ++ (((value) >> EIC_##name##_OFFSET) \ ++ & ((1 << EIC_##name##_SIZE) - 1)) ++#define EIC_BFINS(name,value,old) \ ++ (((old) & ~(((1 << EIC_##name##_SIZE) - 1) \ ++ << EIC_##name##_OFFSET)) \ ++ | EIC_BF(name,value)) ++ ++/* Register access macros */ ++#define eic_readl(port,reg) \ ++ __raw_readl((port)->regs + EIC_##reg) ++#define eic_writel(port,reg,value) \ ++ __raw_writel((value), (port)->regs + EIC_##reg) ++ ++struct eic { ++ void __iomem *regs; ++ struct irq_chip *chip; ++ unsigned int first_irq; ++}; + +-static void eim_ack_irq(unsigned int irq) ++static void eic_ack_irq(unsigned int irq) + { +- struct at32_sm *sm = get_irq_chip_data(irq); +- sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq)); ++ struct eic *eic = get_irq_chip_data(irq); ++ eic_writel(eic, ICR, 1 << (irq - eic->first_irq)); + } + +-static void eim_mask_irq(unsigned int irq) ++static void eic_mask_irq(unsigned int irq) + { +- struct at32_sm *sm = get_irq_chip_data(irq); +- sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq)); ++ struct eic *eic = get_irq_chip_data(irq); ++ eic_writel(eic, IDR, 1 << (irq - eic->first_irq)); + } + +-static void eim_mask_ack_irq(unsigned int irq) ++static void eic_mask_ack_irq(unsigned int irq) + { +- struct at32_sm *sm = get_irq_chip_data(irq); +- sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq)); +- sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq)); ++ struct eic *eic = get_irq_chip_data(irq); ++ eic_writel(eic, ICR, 1 << (irq - eic->first_irq)); ++ eic_writel(eic, IDR, 1 << (irq - eic->first_irq)); + } + +-static void eim_unmask_irq(unsigned int irq) ++static void eic_unmask_irq(unsigned int irq) + { +- struct at32_sm *sm = get_irq_chip_data(irq); +- sm_writel(sm, EIM_IER, 1 << (irq - sm->eim_first_irq)); ++ struct eic *eic = get_irq_chip_data(irq); ++ eic_writel(eic, IER, 1 << (irq - eic->first_irq)); + } + +-static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) ++static int eic_set_irq_type(unsigned int irq, unsigned int flow_type) + { +- struct at32_sm *sm = get_irq_chip_data(irq); ++ struct eic *eic = get_irq_chip_data(irq); + struct irq_desc *desc; +- unsigned int i = irq - sm->eim_first_irq; ++ unsigned int i = irq - eic->first_irq; + u32 mode, edge, level; +- unsigned long flags; + int ret = 0; + + flow_type &= IRQ_TYPE_SENSE_MASK; +@@ -60,11 +101,10 @@ static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) + flow_type = IRQ_TYPE_LEVEL_LOW; + + desc = &irq_desc[irq]; +- spin_lock_irqsave(&sm->lock, flags); + +- mode = sm_readl(sm, EIM_MODE); +- edge = sm_readl(sm, EIM_EDGE); +- level = sm_readl(sm, EIM_LEVEL); ++ mode = eic_readl(eic, MODE); ++ edge = eic_readl(eic, EDGE); ++ level = eic_readl(eic, LEVEL); + + switch (flow_type) { + case IRQ_TYPE_LEVEL_LOW: +@@ -89,9 +129,9 @@ static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) + } + + if (ret == 0) { +- sm_writel(sm, EIM_MODE, mode); +- sm_writel(sm, EIM_EDGE, edge); +- sm_writel(sm, EIM_LEVEL, level); ++ eic_writel(eic, MODE, mode); ++ eic_writel(eic, EDGE, edge); ++ eic_writel(eic, LEVEL, level); + + if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) + flow_type |= IRQ_LEVEL; +@@ -99,35 +139,33 @@ static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) + desc->status |= flow_type; + } + +- spin_unlock_irqrestore(&sm->lock, flags); +- + return ret; + } + +-struct irq_chip eim_chip = { +- .name = "eim", +- .ack = eim_ack_irq, +- .mask = eim_mask_irq, +- .mask_ack = eim_mask_ack_irq, +- .unmask = eim_unmask_irq, +- .set_type = eim_set_irq_type, ++struct irq_chip eic_chip = { ++ .name = "eic", ++ .ack = eic_ack_irq, ++ .mask = eic_mask_irq, ++ .mask_ack = eic_mask_ack_irq, ++ .unmask = eic_unmask_irq, ++ .set_type = eic_set_irq_type, + }; + +-static void demux_eim_irq(unsigned int irq, struct irq_desc *desc) ++static void demux_eic_irq(unsigned int irq, struct irq_desc *desc) + { +- struct at32_sm *sm = desc->handler_data; ++ struct eic *eic = desc->handler_data; + struct irq_desc *ext_desc; + unsigned long status, pending; + unsigned int i, ext_irq; + +- status = sm_readl(sm, EIM_ISR); +- pending = status & sm_readl(sm, EIM_IMR); ++ status = eic_readl(eic, ISR); ++ pending = status & eic_readl(eic, IMR); + + while (pending) { + i = fls(pending) - 1; + pending &= ~(1 << i); + +- ext_irq = i + sm->eim_first_irq; ++ ext_irq = i + eic->first_irq; + ext_desc = irq_desc + ext_irq; + if (ext_desc->status & IRQ_LEVEL) + handle_level_irq(ext_irq, ext_desc); +@@ -136,51 +174,85 @@ static void demux_eim_irq(unsigned int irq, struct irq_desc *desc) + } + } + +-static int __init eim_init(void) ++static int __init eic_probe(struct platform_device *pdev) + { +- struct at32_sm *sm = &system_manager; ++ struct eic *eic; ++ struct resource *regs; + unsigned int i; + unsigned int nr_irqs; + unsigned int int_irq; ++ int ret; + u32 pattern; + +- /* +- * The EIM is really the same module as SM, so register +- * mapping, etc. has been taken care of already. +- */ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ int_irq = platform_get_irq(pdev, 0); ++ if (!regs || !int_irq) { ++ dev_dbg(&pdev->dev, "missing regs and/or irq resource\n"); ++ return -ENXIO; ++ } ++ ++ ret = -ENOMEM; ++ eic = kzalloc(sizeof(struct eic), GFP_KERNEL); ++ if (!eic) { ++ dev_dbg(&pdev->dev, "no memory for eic structure\n"); ++ goto err_kzalloc; ++ } ++ ++ eic->first_irq = EIM_IRQ_BASE + 32 * pdev->id; ++ eic->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!eic->regs) { ++ dev_dbg(&pdev->dev, "failed to map regs\n"); ++ goto err_ioremap; ++ } + + /* + * Find out how many interrupt lines that are actually + * implemented in hardware. + */ +- sm_writel(sm, EIM_IDR, ~0UL); +- sm_writel(sm, EIM_MODE, ~0UL); +- pattern = sm_readl(sm, EIM_MODE); ++ eic_writel(eic, IDR, ~0UL); ++ eic_writel(eic, MODE, ~0UL); ++ pattern = eic_readl(eic, MODE); + nr_irqs = fls(pattern); + + /* Trigger on falling edge unless overridden by driver */ +- sm_writel(sm, EIM_MODE, 0UL); +- sm_writel(sm, EIM_EDGE, 0UL); ++ eic_writel(eic, MODE, 0UL); ++ eic_writel(eic, EDGE, 0UL); + +- sm->eim_chip = &eim_chip; ++ eic->chip = &eic_chip; + + for (i = 0; i < nr_irqs; i++) { + /* NOTE the handler we set here is ignored by the demux */ +- set_irq_chip_and_handler(sm->eim_first_irq + i, &eim_chip, ++ set_irq_chip_and_handler(eic->first_irq + i, &eic_chip, + handle_level_irq); +- set_irq_chip_data(sm->eim_first_irq + i, sm); ++ set_irq_chip_data(eic->first_irq + i, eic); + } + +- int_irq = platform_get_irq_byname(sm->pdev, "eim"); +- +- set_irq_chained_handler(int_irq, demux_eim_irq); +- set_irq_data(int_irq, sm); ++ set_irq_chained_handler(int_irq, demux_eic_irq); ++ set_irq_data(int_irq, eic); + +- printk("EIM: External Interrupt Module at 0x%p, IRQ %u\n", +- sm->regs, int_irq); +- printk("EIM: Handling %u external IRQs, starting with IRQ %u\n", +- nr_irqs, sm->eim_first_irq); ++ dev_info(&pdev->dev, ++ "External Interrupt Controller at 0x%p, IRQ %u\n", ++ eic->regs, int_irq); ++ dev_info(&pdev->dev, ++ "Handling %u external IRQs, starting with IRQ %u\n", ++ nr_irqs, eic->first_irq); + + return 0; ++ ++err_ioremap: ++ kfree(eic); ++err_kzalloc: ++ return ret; ++} ++ ++static struct platform_driver eic_driver = { ++ .driver = { ++ .name = "at32_eic", ++ }, ++}; ++ ++static int __init eic_init(void) ++{ ++ return platform_driver_probe(&eic_driver, eic_probe); + } +-arch_initcall(eim_init); ++arch_initcall(eic_init); +diff --git a/arch/avr32/mach-at32ap/gpio-dev.c b/arch/avr32/mach-at32ap/gpio-dev.c +new file mode 100644 +index 0000000..3d4810d +--- /dev/null ++++ b/arch/avr32/mach-at32ap/gpio-dev.c +@@ -0,0 +1,570 @@ ++/* ++ * GPIO /dev and configfs interface ++ * ++ * Copyright (C) 2006-2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#include <linux/configfs.h> ++#include <linux/cdev.h> ++#include <linux/fs.h> ++#include <linux/interrupt.h> ++#include <linux/poll.h> ++#include <linux/uaccess.h> ++#include <linux/wait.h> ++ ++#include <asm/gpio.h> ++#include <asm/arch/portmux.h> ++ ++#define GPIO_DEV_MAX 8 ++ ++static struct class *gpio_dev_class; ++static dev_t gpio_devt; ++ ++struct gpio_item { ++ spinlock_t lock; ++ ++ int enabled; ++ int initialized; ++ int port; ++ u32 pin_mask; ++ u32 oe_mask; ++ ++ /* Pin state last time we read it (for blocking reads) */ ++ u32 pin_state; ++ int changed; ++ ++ wait_queue_head_t change_wq; ++ struct fasync_struct *async_queue; ++ ++ int id; ++ struct class_device *gpio_dev; ++ struct cdev char_dev; ++ struct config_item item; ++}; ++ ++struct gpio_attribute { ++ struct configfs_attribute attr; ++ ssize_t (*show)(struct gpio_item *, char *); ++ ssize_t (*store)(struct gpio_item *, const char *, size_t); ++}; ++ ++static irqreturn_t gpio_dev_interrupt(int irq, void *dev_id) ++{ ++ struct gpio_item *gpio = dev_id; ++ u32 old_state, new_state; ++ ++ old_state = gpio->pin_state; ++ new_state = at32_gpio_get_value_multiple(gpio->port, gpio->pin_mask); ++ gpio->pin_state = new_state; ++ ++ if (new_state != old_state) { ++ gpio->changed = 1; ++ wake_up_interruptible(&gpio->change_wq); ++ ++ if (gpio->async_queue) ++ kill_fasync(&gpio->async_queue, SIGIO, POLL_IN); ++ } ++ ++ return IRQ_HANDLED; ++} ++ ++static int gpio_dev_open(struct inode *inode, struct file *file) ++{ ++ struct gpio_item *gpio = container_of(inode->i_cdev, ++ struct gpio_item, ++ char_dev); ++ unsigned int irq; ++ unsigned int i; ++ int ret; ++ ++ nonseekable_open(inode, file); ++ config_item_get(&gpio->item); ++ file->private_data = gpio; ++ ++ gpio->pin_state = at32_gpio_get_value_multiple(gpio->port, ++ gpio->pin_mask); ++ gpio->changed = 1; ++ ++ for (i = 0; i < 32; i++) { ++ if (gpio->pin_mask & (1 << i)) { ++ irq = gpio_to_irq(32 * gpio->port + i); ++ ret = request_irq(irq, gpio_dev_interrupt, 0, ++ "gpio-dev", gpio); ++ if (ret) ++ goto err_irq; ++ } ++ } ++ ++ return 0; ++ ++err_irq: ++ while (i--) { ++ if (gpio->pin_mask & (1 << i)) { ++ irq = gpio_to_irq(32 * gpio->port + i); ++ free_irq(irq, gpio); ++ } ++ } ++ ++ config_item_put(&gpio->item); ++ ++ return ret; ++} ++ ++static int gpio_dev_fasync(int fd, struct file *file, int mode) ++{ ++ struct gpio_item *gpio = file->private_data; ++ ++ return fasync_helper(fd, file, mode, &gpio->async_queue); ++} ++ ++static int gpio_dev_release(struct inode *inode, struct file *file) ++{ ++ struct gpio_item *gpio = file->private_data; ++ unsigned int irq; ++ unsigned int i; ++ ++ gpio_dev_fasync(-1, file, 0); ++ ++ for (i = 0; i < 32; i++) { ++ if (gpio->pin_mask & (1 << i)) { ++ irq = gpio_to_irq(32 * gpio->port + i); ++ free_irq(irq, gpio); ++ } ++ } ++ ++ config_item_put(&gpio->item); ++ ++ return 0; ++} ++ ++static unsigned int gpio_dev_poll(struct file *file, poll_table *wait) ++{ ++ struct gpio_item *gpio = file->private_data; ++ unsigned int mask = 0; ++ ++ poll_wait(file, &gpio->change_wq, wait); ++ if (gpio->changed) ++ mask |= POLLIN | POLLRDNORM; ++ ++ return mask; ++} ++ ++static ssize_t gpio_dev_read(struct file *file, char __user *buf, ++ size_t count, loff_t *offset) ++{ ++ struct gpio_item *gpio = file->private_data; ++ u32 value; ++ ++ spin_lock_irq(&gpio->lock); ++ while (!gpio->changed) { ++ spin_unlock_irq(&gpio->lock); ++ ++ if (file->f_flags & O_NONBLOCK) ++ return -EAGAIN; ++ ++ if (wait_event_interruptible(gpio->change_wq, gpio->changed)) ++ return -ERESTARTSYS; ++ ++ spin_lock_irq(&gpio->lock); ++ } ++ ++ gpio->changed = 0; ++ value = at32_gpio_get_value_multiple(gpio->port, gpio->pin_mask); ++ ++ spin_unlock_irq(&gpio->lock); ++ ++ count = min(count, (size_t)4); ++ if (copy_to_user(buf, &value, count)) ++ return -EFAULT; ++ ++ return count; ++} ++ ++static ssize_t gpio_dev_write(struct file *file, const char __user *buf, ++ size_t count, loff_t *offset) ++{ ++ struct gpio_item *gpio = file->private_data; ++ u32 value = 0; ++ u32 mask = ~0UL; ++ ++ count = min(count, (size_t)4); ++ if (copy_from_user(&value, buf, count)) ++ return -EFAULT; ++ ++ /* Assuming big endian */ ++ mask <<= (4 - count) * 8; ++ mask &= gpio->pin_mask; ++ ++ at32_gpio_set_value_multiple(gpio->port, value, mask); ++ ++ return count; ++} ++ ++static struct file_operations gpio_dev_fops = { ++ .owner = THIS_MODULE, ++ .llseek = no_llseek, ++ .open = gpio_dev_open, ++ .release = gpio_dev_release, ++ .fasync = gpio_dev_fasync, ++ .poll = gpio_dev_poll, ++ .read = gpio_dev_read, ++ .write = gpio_dev_write, ++}; ++ ++static struct gpio_item *to_gpio_item(struct config_item *item) ++{ ++ return item ? container_of(item, struct gpio_item, item) : NULL; ++} ++ ++static ssize_t gpio_show_gpio_id(struct gpio_item *gpio, char *page) ++{ ++ return sprintf(page, "%d\n", gpio->port); ++} ++ ++static ssize_t gpio_store_gpio_id(struct gpio_item *gpio, ++ const char *page, size_t count) ++{ ++ unsigned long id; ++ char *p = (char *)page; ++ ssize_t ret = -EINVAL; ++ ++ id = simple_strtoul(p, &p, 0); ++ if (!p || (*p && (*p != '\n'))) ++ return -EINVAL; ++ ++ /* Switching PIO is not allowed when live... */ ++ spin_lock(&gpio->lock); ++ if (!gpio->enabled) { ++ ret = -ENXIO; ++ if (at32_gpio_port_is_valid(id)) { ++ gpio->port = id; ++ ret = count; ++ } ++ } ++ spin_unlock(&gpio->lock); ++ ++ return ret; ++} ++ ++static ssize_t gpio_show_pin_mask(struct gpio_item *gpio, char *page) ++{ ++ return sprintf(page, "0x%08x\n", gpio->pin_mask); ++} ++ ++static ssize_t gpio_store_pin_mask(struct gpio_item *gpio, ++ const char *page, size_t count) ++{ ++ u32 new_mask; ++ char *p = (char *)page; ++ ssize_t ret = -EINVAL; ++ ++ new_mask = simple_strtoul(p, &p, 0); ++ if (!p || (*p && (*p != '\n'))) ++ return -EINVAL; ++ ++ /* Can't update the pin mask while live. */ ++ spin_lock(&gpio->lock); ++ if (!gpio->enabled) { ++ gpio->oe_mask &= new_mask; ++ gpio->pin_mask = new_mask; ++ ret = count; ++ } ++ spin_unlock(&gpio->lock); ++ ++ return ret; ++} ++ ++static ssize_t gpio_show_oe_mask(struct gpio_item *gpio, char *page) ++{ ++ return sprintf(page, "0x%08x\n", gpio->oe_mask); ++} ++ ++static ssize_t gpio_store_oe_mask(struct gpio_item *gpio, ++ const char *page, size_t count) ++{ ++ u32 mask; ++ char *p = (char *)page; ++ ssize_t ret = -EINVAL; ++ ++ mask = simple_strtoul(p, &p, 0); ++ if (!p || (*p && (*p != '\n'))) ++ return -EINVAL; ++ ++ spin_lock(&gpio->lock); ++ if (!gpio->enabled) { ++ gpio->oe_mask = mask & gpio->pin_mask; ++ ret = count; ++ } ++ spin_unlock(&gpio->lock); ++ ++ return ret; ++} ++ ++static ssize_t gpio_show_enabled(struct gpio_item *gpio, char *page) ++{ ++ return sprintf(page, "%d\n", gpio->enabled); ++} ++ ++static ssize_t gpio_store_enabled(struct gpio_item *gpio, ++ const char *page, size_t count) ++{ ++ char *p = (char *)page; ++ int enabled; ++ int ret; ++ ++ enabled = simple_strtoul(p, &p, 0); ++ if (!p || (*p && (*p != '\n'))) ++ return -EINVAL; ++ ++ /* make it a boolean value */ ++ enabled = !!enabled; ++ ++ if (gpio->enabled == enabled) ++ /* No change; do nothing. */ ++ return count; ++ ++ BUG_ON(gpio->id >= GPIO_DEV_MAX); ++ ++ if (!enabled) { ++ class_device_unregister(gpio->gpio_dev); ++ cdev_del(&gpio->char_dev); ++ at32_deselect_pins(gpio->port, gpio->pin_mask); ++ gpio->initialized = 0; ++ } else { ++ if (gpio->port < 0 || !gpio->pin_mask) ++ return -ENODEV; ++ } ++ ++ /* Disallow any updates to gpio_id or pin_mask */ ++ spin_lock(&gpio->lock); ++ gpio->enabled = enabled; ++ spin_unlock(&gpio->lock); ++ ++ if (!enabled) ++ return count; ++ ++ /* Now, try to allocate the pins */ ++ ret = at32_select_gpio_pins(gpio->port, gpio->pin_mask, gpio->oe_mask); ++ if (ret) ++ goto err_alloc_pins; ++ ++ gpio->initialized = 1; ++ ++ cdev_init(&gpio->char_dev, &gpio_dev_fops); ++ gpio->char_dev.owner = THIS_MODULE; ++ ret = cdev_add(&gpio->char_dev, MKDEV(MAJOR(gpio_devt), gpio->id), 1); ++ if (ret < 0) ++ goto err_cdev_add; ++ gpio->gpio_dev = class_device_create(gpio_dev_class, NULL, ++ MKDEV(MAJOR(gpio_devt), gpio->id), ++ NULL, ++ "gpio%d", gpio->id); ++ if (IS_ERR(gpio->gpio_dev)) { ++ printk(KERN_ERR "failed to create gpio%d\n", gpio->id); ++ ret = PTR_ERR(gpio->gpio_dev); ++ goto err_class_dev; ++ } ++ ++ printk(KERN_INFO "created gpio%d (port%d/0x%08x) as (%d:%d)\n", ++ gpio->id, gpio->port, gpio->pin_mask, ++ MAJOR(gpio->gpio_dev->devt), MINOR(gpio->gpio_dev->devt)); ++ ++ return 0; ++ ++err_class_dev: ++ cdev_del(&gpio->char_dev); ++err_cdev_add: ++ at32_deselect_pins(gpio->port, gpio->pin_mask); ++ gpio->initialized = 0; ++err_alloc_pins: ++ spin_lock(&gpio->lock); ++ gpio->enabled = 0; ++ spin_unlock(&gpio->lock); ++ ++ return ret; ++} ++ ++static struct gpio_attribute gpio_item_attr_gpio_id = { ++ .attr = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "gpio_id", ++ .ca_mode = S_IRUGO | S_IWUSR, ++ }, ++ .show = gpio_show_gpio_id, ++ .store = gpio_store_gpio_id, ++}; ++static struct gpio_attribute gpio_item_attr_pin_mask = { ++ .attr = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "pin_mask", ++ .ca_mode = S_IRUGO | S_IWUSR, ++ }, ++ .show = gpio_show_pin_mask, ++ .store = gpio_store_pin_mask, ++}; ++static struct gpio_attribute gpio_item_attr_oe_mask = { ++ .attr = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "oe_mask", ++ .ca_mode = S_IRUGO | S_IWUSR, ++ }, ++ .show = gpio_show_oe_mask, ++ .store = gpio_store_oe_mask, ++}; ++static struct gpio_attribute gpio_item_attr_enabled = { ++ .attr = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "enabled", ++ .ca_mode = S_IRUGO | S_IWUSR, ++ }, ++ .show = gpio_show_enabled, ++ .store = gpio_store_enabled, ++}; ++ ++static struct configfs_attribute *gpio_item_attrs[] = { ++ &gpio_item_attr_gpio_id.attr, ++ &gpio_item_attr_pin_mask.attr, ++ &gpio_item_attr_oe_mask.attr, ++ &gpio_item_attr_enabled.attr, ++ NULL, ++}; ++ ++static ssize_t gpio_show_attr(struct config_item *item, ++ struct configfs_attribute *attr, ++ char *page) ++{ ++ struct gpio_item *gpio_item = to_gpio_item(item); ++ struct gpio_attribute *gpio_attr ++ = container_of(attr, struct gpio_attribute, attr); ++ ssize_t ret = 0; ++ ++ if (gpio_attr->show) ++ ret = gpio_attr->show(gpio_item, page); ++ return ret; ++} ++ ++static ssize_t gpio_store_attr(struct config_item *item, ++ struct configfs_attribute *attr, ++ const char *page, size_t count) ++{ ++ struct gpio_item *gpio_item = to_gpio_item(item); ++ struct gpio_attribute *gpio_attr ++ = container_of(attr, struct gpio_attribute, attr); ++ ssize_t ret = -EINVAL; ++ ++ if (gpio_attr->store) ++ ret = gpio_attr->store(gpio_item, page, count); ++ return ret; ++} ++ ++static void gpio_release(struct config_item *item) ++{ ++ kfree(to_gpio_item(item)); ++} ++ ++static struct configfs_item_operations gpio_item_ops = { ++ .release = gpio_release, ++ .show_attribute = gpio_show_attr, ++ .store_attribute = gpio_store_attr, ++}; ++ ++static struct config_item_type gpio_item_type = { ++ .ct_item_ops = &gpio_item_ops, ++ .ct_attrs = gpio_item_attrs, ++ .ct_owner = THIS_MODULE, ++}; ++ ++static struct config_item *gpio_make_item(struct config_group *group, ++ const char *name) ++{ ++ static int next_id; ++ struct gpio_item *gpio; ++ ++ if (next_id >= GPIO_DEV_MAX) ++ return NULL; ++ ++ gpio = kzalloc(sizeof(struct gpio_item), GFP_KERNEL); ++ if (!gpio) ++ return NULL; ++ ++ gpio->id = next_id++; ++ config_item_init_type_name(&gpio->item, name, &gpio_item_type); ++ spin_lock_init(&gpio->lock); ++ init_waitqueue_head(&gpio->change_wq); ++ ++ return &gpio->item; ++} ++ ++static void gpio_drop_item(struct config_group *group, ++ struct config_item *item) ++{ ++ struct gpio_item *gpio = to_gpio_item(item); ++ ++ spin_lock(&gpio->lock); ++ if (gpio->enabled) { ++ class_device_unregister(gpio->gpio_dev); ++ cdev_del(&gpio->char_dev); ++ } ++ ++ if (gpio->initialized) { ++ at32_deselect_pins(gpio->port, gpio->pin_mask); ++ gpio->initialized = 0; ++ gpio->enabled = 0; ++ } ++ spin_unlock(&gpio->lock); ++} ++ ++static struct configfs_group_operations gpio_group_ops = { ++ .make_item = gpio_make_item, ++ .drop_item = gpio_drop_item, ++}; ++ ++static struct config_item_type gpio_group_type = { ++ .ct_group_ops = &gpio_group_ops, ++ .ct_owner = THIS_MODULE, ++}; ++ ++static struct configfs_subsystem gpio_subsys = { ++ .su_group = { ++ .cg_item = { ++ .ci_namebuf = "gpio", ++ .ci_type = &gpio_group_type, ++ }, ++ }, ++}; ++ ++static int __init gpio_dev_init(void) ++{ ++ int err; ++ ++ gpio_dev_class = class_create(THIS_MODULE, "gpio-dev"); ++ if (IS_ERR(gpio_dev_class)) { ++ err = PTR_ERR(gpio_dev_class); ++ goto err_class_create; ++ } ++ ++ err = alloc_chrdev_region(&gpio_devt, 0, GPIO_DEV_MAX, "gpio"); ++ if (err < 0) ++ goto err_alloc_chrdev; ++ ++ /* Configfs initialization */ ++ config_group_init(&gpio_subsys.su_group); ++ init_MUTEX(&gpio_subsys.su_sem); ++ err = configfs_register_subsystem(&gpio_subsys); ++ if (err) ++ goto err_register_subsys; ++ ++ return 0; ++ ++err_register_subsys: ++ unregister_chrdev_region(gpio_devt, GPIO_DEV_MAX); ++err_alloc_chrdev: ++ class_destroy(gpio_dev_class); ++err_class_create: ++ printk(KERN_WARNING "Failed to initialize gpio /dev interface\n"); ++ return err; ++} ++late_initcall(gpio_dev_init); +diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c +index 1eb99b8..c978c36 100644 +--- a/arch/avr32/mach-at32ap/pio.c ++++ b/arch/avr32/mach-at32ap/pio.c +@@ -110,6 +110,10 @@ void __init at32_select_gpio(unsigned int pin, unsigned long flags) + pio_writel(pio, SODR, mask); + else + pio_writel(pio, CODR, mask); ++ if (flags & AT32_GPIOF_MULTIDRV) ++ pio_writel(pio, MDER, mask); ++ else ++ pio_writel(pio, MDDR, mask); + pio_writel(pio, PUDR, mask); + pio_writel(pio, OER, mask); + } else { +@@ -158,6 +162,82 @@ fail: + dump_stack(); + } + ++#ifdef CONFIG_GPIO_DEV ++ ++/* Gang allocators and accessors; used by the GPIO /dev driver */ ++int at32_gpio_port_is_valid(unsigned int port) ++{ ++ return port < MAX_NR_PIO_DEVICES && pio_dev[port].regs != NULL; ++} ++ ++int at32_select_gpio_pins(unsigned int port, u32 pins, u32 oe_mask) ++{ ++ struct pio_device *pio; ++ u32 old, new; ++ ++ pio = &pio_dev[port]; ++ BUG_ON(port > ARRAY_SIZE(pio_dev) || !pio->regs || (oe_mask & ~pins)); ++ ++ /* Try to allocate the pins */ ++ do { ++ old = pio->pinmux_mask; ++ if (old & pins) ++ return -EBUSY; ++ ++ new = old | pins; ++ } while (cmpxchg(&pio->pinmux_mask, old, new) != old); ++ ++ /* That went well, now configure the port */ ++ pio_writel(pio, OER, oe_mask); ++ pio_writel(pio, PER, pins); ++ ++ return 0; ++} ++ ++void at32_deselect_pins(unsigned int port, u32 pins) ++{ ++ struct pio_device *pio; ++ u32 old, new; ++ ++ pio = &pio_dev[port]; ++ BUG_ON(port > ARRAY_SIZE(pio_dev) || !pio->regs); ++ ++ /* Return to a "safe" mux configuration */ ++ pio_writel(pio, PUER, pins); ++ pio_writel(pio, ODR, pins); ++ ++ /* Deallocate the pins */ ++ do { ++ old = pio->pinmux_mask; ++ new = old & ~pins; ++ } while (cmpxchg(&pio->pinmux_mask, old, new) != old); ++} ++ ++u32 at32_gpio_get_value_multiple(unsigned int port, u32 pins) ++{ ++ struct pio_device *pio; ++ ++ pio = &pio_dev[port]; ++ BUG_ON(port > ARRAY_SIZE(pio_dev) || !pio->regs); ++ ++ return pio_readl(pio, PDSR) & pins; ++} ++ ++void at32_gpio_set_value_multiple(unsigned int port, u32 value, u32 mask) ++{ ++ struct pio_device *pio; ++ ++ pio = &pio_dev[port]; ++ BUG_ON(port > ARRAY_SIZE(pio_dev) || !pio->regs); ++ ++ /* No atomic updates for now... */ ++ pio_writel(pio, CODR, ~value & mask); ++ pio_writel(pio, SODR, value & mask); ++} ++ ++#endif /* CONFIG_GPIO_DEV */ ++ ++ + /*--------------------------------------------------------------------------*/ + + /* GPIO API */ +diff --git a/arch/avr32/mach-at32ap/pm.h b/arch/avr32/mach-at32ap/pm.h +new file mode 100644 +index 0000000..47efd0d +--- /dev/null ++++ b/arch/avr32/mach-at32ap/pm.h +@@ -0,0 +1,120 @@ ++/* ++ * Register definitions for the Power Manager (PM) ++ */ ++#ifndef __ARCH_AVR32_MACH_AT32AP_PM_H__ ++#define __ARCH_AVR32_MACH_AT32AP_PM_H__ ++ ++/* ++ * We can reduce the code size a bit by using a constant here. Since ++ * this file is only used on AVR32 AP CPUs with segmentation enabled, ++ * it's safe to not use ioremap. Generic drivers should of course ++ * never do this. ++ */ ++#define AT32_PM_BASE 0xfff00000 ++ ++/* PM register offsets */ ++#define PM_MCCTRL 0x0000 ++#define PM_CKSEL 0x0004 ++#define PM_CPU_MASK 0x0008 ++#define PM_HSB_MASK 0x000c ++#define PM_PBA_MASK 0x0010 ++#define PM_PBB_MASK 0x0014 ++#define PM_PLL0 0x0020 ++#define PM_PLL1 0x0024 ++#define PM_IER 0x0040 ++#define PM_IDR 0x0044 ++#define PM_IMR 0x0048 ++#define PM_ISR 0x004c ++#define PM_ICR 0x0050 ++#define PM_GCCTRL(x) (0x0060 + 4 * (x)) ++#define PM_RCAUSE 0x00c0 ++ ++/* Bitfields in CKSEL */ ++#define PM_CPUSEL_OFFSET 0 ++#define PM_CPUSEL_SIZE 3 ++#define PM_CPUDIV_OFFSET 7 ++#define PM_CPUDIV_SIZE 1 ++#define PM_HSBSEL_OFFSET 8 ++#define PM_HSBSEL_SIZE 3 ++#define PM_HSBDIV_OFFSET 15 ++#define PM_HSBDIV_SIZE 1 ++#define PM_PBASEL_OFFSET 16 ++#define PM_PBASEL_SIZE 3 ++#define PM_PBADIV_OFFSET 23 ++#define PM_PBADIV_SIZE 1 ++#define PM_PBBSEL_OFFSET 24 ++#define PM_PBBSEL_SIZE 3 ++#define PM_PBBDIV_OFFSET 31 ++#define PM_PBBDIV_SIZE 1 ++ ++/* Bitfields in PLL0 */ ++#define PM_PLLEN_OFFSET 0 ++#define PM_PLLEN_SIZE 1 ++#define PM_PLLOSC_OFFSET 1 ++#define PM_PLLOSC_SIZE 1 ++#define PM_PLLOPT_OFFSET 2 ++#define PM_PLLOPT_SIZE 3 ++#define PM_PLLDIV_OFFSET 8 ++#define PM_PLLDIV_SIZE 8 ++#define PM_PLLMUL_OFFSET 16 ++#define PM_PLLMUL_SIZE 8 ++#define PM_PLLCOUNT_OFFSET 24 ++#define PM_PLLCOUNT_SIZE 6 ++#define PM_PLLTEST_OFFSET 31 ++#define PM_PLLTEST_SIZE 1 ++ ++/* Bitfields in ICR */ ++#define PM_LOCK0_OFFSET 0 ++#define PM_LOCK0_SIZE 1 ++#define PM_LOCK1_OFFSET 1 ++#define PM_LOCK1_SIZE 1 ++#define PM_WAKE_OFFSET 2 ++#define PM_WAKE_SIZE 1 ++#define PM_CKRDY_OFFSET 5 ++#define PM_CKRDY_SIZE 1 ++#define PM_MSKRDY_OFFSET 6 ++#define PM_MSKRDY_SIZE 1 ++ ++/* Bitfields in GCCTRL0 */ ++#define PM_OSCSEL_OFFSET 0 ++#define PM_OSCSEL_SIZE 1 ++#define PM_PLLSEL_OFFSET 1 ++#define PM_PLLSEL_SIZE 1 ++#define PM_CEN_OFFSET 2 ++#define PM_CEN_SIZE 1 ++#define PM_DIVEN_OFFSET 4 ++#define PM_DIVEN_SIZE 1 ++#define PM_DIV_OFFSET 8 ++#define PM_DIV_SIZE 8 ++ ++/* Bitfields in RCAUSE */ ++#define PM_POR_OFFSET 0 ++#define PM_POR_SIZE 1 ++#define PM_EXT_OFFSET 2 ++#define PM_EXT_SIZE 1 ++#define PM_WDT_OFFSET 3 ++#define PM_WDT_SIZE 1 ++#define PM_NTAE_OFFSET 4 ++#define PM_NTAE_SIZE 1 ++ ++/* Bit manipulation macros */ ++#define PM_BIT(name) \ ++ (1 << PM_##name##_OFFSET) ++#define PM_BF(name,value) \ ++ (((value) & ((1 << PM_##name##_SIZE) - 1)) \ ++ << PM_##name##_OFFSET) ++#define PM_BFEXT(name,value) \ ++ (((value) >> PM_##name##_OFFSET) \ ++ & ((1 << PM_##name##_SIZE) - 1)) ++#define PM_BFINS(name,value,old)\ ++ (((old) & ~(((1 << PM_##name##_SIZE) - 1) \ ++ << PM_##name##_OFFSET)) \ ++ | PM_BF(name,value)) ++ ++/* Register access macros */ ++#define pm_readl(reg) \ ++ __raw_readl((void __iomem *)AT32_PM_BASE + PM_##reg) ++#define pm_writel(reg,value) \ ++ __raw_writel((value), (void __iomem *)AT32_PM_BASE + PM_##reg) ++ ++#endif /* __ARCH_AVR32_MACH_AT32AP_PM_H__ */ +diff --git a/arch/avr32/mach-at32ap/sm.h b/arch/avr32/mach-at32ap/sm.h +deleted file mode 100644 +index cad02b5..0000000 +--- a/arch/avr32/mach-at32ap/sm.h ++++ /dev/null +@@ -1,242 +0,0 @@ +-/* +- * Register definitions for SM +- * +- * System Manager +- */ +-#ifndef __ASM_AVR32_SM_H__ +-#define __ASM_AVR32_SM_H__ +- +-/* SM register offsets */ +-#define SM_PM_MCCTRL 0x0000 +-#define SM_PM_CKSEL 0x0004 +-#define SM_PM_CPU_MASK 0x0008 +-#define SM_PM_HSB_MASK 0x000c +-#define SM_PM_PBA_MASK 0x0010 +-#define SM_PM_PBB_MASK 0x0014 +-#define SM_PM_PLL0 0x0020 +-#define SM_PM_PLL1 0x0024 +-#define SM_PM_VCTRL 0x0030 +-#define SM_PM_VMREF 0x0034 +-#define SM_PM_VMV 0x0038 +-#define SM_PM_IER 0x0040 +-#define SM_PM_IDR 0x0044 +-#define SM_PM_IMR 0x0048 +-#define SM_PM_ISR 0x004c +-#define SM_PM_ICR 0x0050 +-#define SM_PM_GCCTRL 0x0060 +-#define SM_RTC_CTRL 0x0080 +-#define SM_RTC_VAL 0x0084 +-#define SM_RTC_TOP 0x0088 +-#define SM_RTC_IER 0x0090 +-#define SM_RTC_IDR 0x0094 +-#define SM_RTC_IMR 0x0098 +-#define SM_RTC_ISR 0x009c +-#define SM_RTC_ICR 0x00a0 +-#define SM_WDT_CTRL 0x00b0 +-#define SM_WDT_CLR 0x00b4 +-#define SM_WDT_EXT 0x00b8 +-#define SM_RC_RCAUSE 0x00c0 +-#define SM_EIM_IER 0x0100 +-#define SM_EIM_IDR 0x0104 +-#define SM_EIM_IMR 0x0108 +-#define SM_EIM_ISR 0x010c +-#define SM_EIM_ICR 0x0110 +-#define SM_EIM_MODE 0x0114 +-#define SM_EIM_EDGE 0x0118 +-#define SM_EIM_LEVEL 0x011c +-#define SM_EIM_TEST 0x0120 +-#define SM_EIM_NMIC 0x0124 +- +-/* Bitfields in PM_MCCTRL */ +- +-/* Bitfields in PM_CKSEL */ +-#define SM_CPUSEL_OFFSET 0 +-#define SM_CPUSEL_SIZE 3 +-#define SM_CPUDIV_OFFSET 7 +-#define SM_CPUDIV_SIZE 1 +-#define SM_HSBSEL_OFFSET 8 +-#define SM_HSBSEL_SIZE 3 +-#define SM_HSBDIV_OFFSET 15 +-#define SM_HSBDIV_SIZE 1 +-#define SM_PBASEL_OFFSET 16 +-#define SM_PBASEL_SIZE 3 +-#define SM_PBADIV_OFFSET 23 +-#define SM_PBADIV_SIZE 1 +-#define SM_PBBSEL_OFFSET 24 +-#define SM_PBBSEL_SIZE 3 +-#define SM_PBBDIV_OFFSET 31 +-#define SM_PBBDIV_SIZE 1 +- +-/* Bitfields in PM_CPU_MASK */ +- +-/* Bitfields in PM_HSB_MASK */ +- +-/* Bitfields in PM_PBA_MASK */ +- +-/* Bitfields in PM_PBB_MASK */ +- +-/* Bitfields in PM_PLL0 */ +-#define SM_PLLEN_OFFSET 0 +-#define SM_PLLEN_SIZE 1 +-#define SM_PLLOSC_OFFSET 1 +-#define SM_PLLOSC_SIZE 1 +-#define SM_PLLOPT_OFFSET 2 +-#define SM_PLLOPT_SIZE 3 +-#define SM_PLLDIV_OFFSET 8 +-#define SM_PLLDIV_SIZE 8 +-#define SM_PLLMUL_OFFSET 16 +-#define SM_PLLMUL_SIZE 8 +-#define SM_PLLCOUNT_OFFSET 24 +-#define SM_PLLCOUNT_SIZE 6 +-#define SM_PLLTEST_OFFSET 31 +-#define SM_PLLTEST_SIZE 1 +- +-/* Bitfields in PM_PLL1 */ +- +-/* Bitfields in PM_VCTRL */ +-#define SM_VAUTO_OFFSET 0 +-#define SM_VAUTO_SIZE 1 +-#define SM_PM_VCTRL_VAL_OFFSET 8 +-#define SM_PM_VCTRL_VAL_SIZE 7 +- +-/* Bitfields in PM_VMREF */ +-#define SM_REFSEL_OFFSET 0 +-#define SM_REFSEL_SIZE 4 +- +-/* Bitfields in PM_VMV */ +-#define SM_PM_VMV_VAL_OFFSET 0 +-#define SM_PM_VMV_VAL_SIZE 8 +- +-/* Bitfields in PM_IER */ +- +-/* Bitfields in PM_IDR */ +- +-/* Bitfields in PM_IMR */ +- +-/* Bitfields in PM_ISR */ +- +-/* Bitfields in PM_ICR */ +-#define SM_LOCK0_OFFSET 0 +-#define SM_LOCK0_SIZE 1 +-#define SM_LOCK1_OFFSET 1 +-#define SM_LOCK1_SIZE 1 +-#define SM_WAKE_OFFSET 2 +-#define SM_WAKE_SIZE 1 +-#define SM_VOK_OFFSET 3 +-#define SM_VOK_SIZE 1 +-#define SM_VMRDY_OFFSET 4 +-#define SM_VMRDY_SIZE 1 +-#define SM_CKRDY_OFFSET 5 +-#define SM_CKRDY_SIZE 1 +- +-/* Bitfields in PM_GCCTRL */ +-#define SM_OSCSEL_OFFSET 0 +-#define SM_OSCSEL_SIZE 1 +-#define SM_PLLSEL_OFFSET 1 +-#define SM_PLLSEL_SIZE 1 +-#define SM_CEN_OFFSET 2 +-#define SM_CEN_SIZE 1 +-#define SM_CPC_OFFSET 3 +-#define SM_CPC_SIZE 1 +-#define SM_DIVEN_OFFSET 4 +-#define SM_DIVEN_SIZE 1 +-#define SM_DIV_OFFSET 8 +-#define SM_DIV_SIZE 8 +- +-/* Bitfields in RTC_CTRL */ +-#define SM_PCLR_OFFSET 1 +-#define SM_PCLR_SIZE 1 +-#define SM_TOPEN_OFFSET 2 +-#define SM_TOPEN_SIZE 1 +-#define SM_CLKEN_OFFSET 3 +-#define SM_CLKEN_SIZE 1 +-#define SM_PSEL_OFFSET 8 +-#define SM_PSEL_SIZE 16 +- +-/* Bitfields in RTC_VAL */ +-#define SM_RTC_VAL_VAL_OFFSET 0 +-#define SM_RTC_VAL_VAL_SIZE 31 +- +-/* Bitfields in RTC_TOP */ +-#define SM_RTC_TOP_VAL_OFFSET 0 +-#define SM_RTC_TOP_VAL_SIZE 32 +- +-/* Bitfields in RTC_IER */ +- +-/* Bitfields in RTC_IDR */ +- +-/* Bitfields in RTC_IMR */ +- +-/* Bitfields in RTC_ISR */ +- +-/* Bitfields in RTC_ICR */ +-#define SM_TOPI_OFFSET 0 +-#define SM_TOPI_SIZE 1 +- +-/* Bitfields in WDT_CTRL */ +-#define SM_KEY_OFFSET 24 +-#define SM_KEY_SIZE 8 +- +-/* Bitfields in WDT_CLR */ +- +-/* Bitfields in WDT_EXT */ +- +-/* Bitfields in RC_RCAUSE */ +-#define SM_POR_OFFSET 0 +-#define SM_POR_SIZE 1 +-#define SM_BOD_OFFSET 1 +-#define SM_BOD_SIZE 1 +-#define SM_EXT_OFFSET 2 +-#define SM_EXT_SIZE 1 +-#define SM_WDT_OFFSET 3 +-#define SM_WDT_SIZE 1 +-#define SM_NTAE_OFFSET 4 +-#define SM_NTAE_SIZE 1 +-#define SM_SERP_OFFSET 5 +-#define SM_SERP_SIZE 1 +- +-/* Bitfields in EIM_IER */ +- +-/* Bitfields in EIM_IDR */ +- +-/* Bitfields in EIM_IMR */ +- +-/* Bitfields in EIM_ISR */ +- +-/* Bitfields in EIM_ICR */ +- +-/* Bitfields in EIM_MODE */ +- +-/* Bitfields in EIM_EDGE */ +-#define SM_INT0_OFFSET 0 +-#define SM_INT0_SIZE 1 +-#define SM_INT1_OFFSET 1 +-#define SM_INT1_SIZE 1 +-#define SM_INT2_OFFSET 2 +-#define SM_INT2_SIZE 1 +-#define SM_INT3_OFFSET 3 +-#define SM_INT3_SIZE 1 +- +-/* Bitfields in EIM_LEVEL */ +- +-/* Bitfields in EIM_TEST */ +-#define SM_TESTEN_OFFSET 31 +-#define SM_TESTEN_SIZE 1 +- +-/* Bitfields in EIM_NMIC */ +-#define SM_EN_OFFSET 0 +-#define SM_EN_SIZE 1 +- +-/* Bit manipulation macros */ +-#define SM_BIT(name) (1 << SM_##name##_OFFSET) +-#define SM_BF(name,value) (((value) & ((1 << SM_##name##_SIZE) - 1)) << SM_##name##_OFFSET) +-#define SM_BFEXT(name,value) (((value) >> SM_##name##_OFFSET) & ((1 << SM_##name##_SIZE) - 1)) +-#define SM_BFINS(name,value,old) (((old) & ~(((1 << SM_##name##_SIZE) - 1) << SM_##name##_OFFSET)) | SM_BF(name,value)) +- +-/* Register access macros */ +-#define sm_readl(port,reg) \ +- __raw_readl((port)->regs + SM_##reg) +-#define sm_writel(port,reg,value) \ +- __raw_writel((value), (port)->regs + SM_##reg) +- +-#endif /* __ASM_AVR32_SM_H__ */ +diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c +index 099212d..26f29c6 100644 +--- a/arch/avr32/mm/dma-coherent.c ++++ b/arch/avr32/mm/dma-coherent.c +@@ -41,6 +41,13 @@ static struct page *__dma_alloc(struct device *dev, size_t size, + struct page *page, *free, *end; + int order; + ++ /* Following is a work-around (a.k.a. hack) to prevent pages ++ * with __GFP_COMP being passed to split_page() which cannot ++ * handle them. The real problem is that this flag probably ++ * should be 0 on AVR32 as it is not supported on this ++ * platform--see CONFIG_HUGETLB_PAGE. */ ++ gfp &= ~(__GFP_COMP); ++ + size = PAGE_ALIGN(size); + order = get_order(size); + +diff --git a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig +index 53f5538..520afb8 100644 +--- a/drivers/char/watchdog/Kconfig ++++ b/drivers/char/watchdog/Kconfig +@@ -187,6 +187,26 @@ config PNX4008_WATCHDOG + + Say N if you are unsure. + ++# AVR32 Architecture ++ ++config AT32AP700X_WDT ++ tristate "AT32AP700x watchdog" ++ depends on WATCHDOG && CPU_AT32AP7000 ++ help ++ Watchdog timer embedded into AT32AP700x devices. This will reboot ++ your system when the timeout is reached. ++ ++config AT32AP700X_WDT_TIMEOUT ++ int "Timeout value for AT32AP700x watchdog" ++ depends on AT32AP700X_WDT ++ default "2" ++ range 1 2 ++ help ++ Sets the timeout value for the watchdog in AT32AP700x devices. ++ Limited by hardware to be 1 or 2 seconds. ++ ++ Set to 2 seconds by default. ++ + # X86 (i386 + ia64 + x86_64) Architecture + + config ACQUIRE_WDT +diff --git a/drivers/char/watchdog/Makefile b/drivers/char/watchdog/Makefile +index d90f649..3907ec0 100644 +--- a/drivers/char/watchdog/Makefile ++++ b/drivers/char/watchdog/Makefile +@@ -36,6 +36,9 @@ obj-$(CONFIG_MPCORE_WATCHDOG) += mpcore_wdt.o + obj-$(CONFIG_EP93XX_WATCHDOG) += ep93xx_wdt.o + obj-$(CONFIG_PNX4008_WATCHDOG) += pnx4008_wdt.o + ++# AVR32 Architecture ++obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o ++ + # X86 (i386 + ia64 + x86_64) Architecture + obj-$(CONFIG_ACQUIRE_WDT) += acquirewdt.o + obj-$(CONFIG_ADVANTECH_WDT) += advantechwdt.o +diff --git a/drivers/char/watchdog/at32ap700x_wdt.c b/drivers/char/watchdog/at32ap700x_wdt.c +new file mode 100644 +index 0000000..9b598d9 +--- /dev/null ++++ b/drivers/char/watchdog/at32ap700x_wdt.c +@@ -0,0 +1,325 @@ ++/* ++ * Watchdog driver for Atmel AT32AP700X devices ++ * ++ * Copyright (C) 2005-2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/init.h> ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/miscdevice.h> ++#include <linux/fs.h> ++#include <linux/platform_device.h> ++#include <linux/watchdog.h> ++#include <linux/uaccess.h> ++#include <linux/io.h> ++ ++#define TIMEOUT_MIN 1 ++#define TIMEOUT_DEFAULT CONFIG_AT32AP700X_WDT_TIMEOUT ++#define TIMEOUT_MAX 2 ++ ++/* Watchdog registers and write/read macro */ ++#define WDT_CTRL 0x00 ++#define WDT_CTRL_EN 0 ++#define WDT_CTRL_PSEL 8 ++#define WDT_CTRL_KEY 24 ++ ++#define WDT_CLR 0x04 ++ ++#define WDT_BIT(name) (1 << WDT_##name) ++#define WDT_BF(name,value) ((value) << WDT_##name) ++ ++#define wdt_readl(dev,reg) \ ++ __raw_readl((dev)->regs + WDT_##reg) ++#define wdt_writel(dev,reg,value) \ ++ __raw_writel((value), (dev)->regs + WDT_##reg) ++ ++struct wdt_at32ap700x { ++ void __iomem *regs; ++ int timeout; ++ int users; ++ struct miscdevice miscdev; ++}; ++ ++static struct wdt_at32ap700x *wdt; ++ ++/* ++ * Disable the watchdog. ++ */ ++static void inline at32_wdt_stop(void) ++{ ++ unsigned long psel = wdt_readl(wdt, CTRL) & WDT_BF(CTRL_PSEL, 0x0f); ++ wdt_writel(wdt, CTRL, psel | WDT_BF(CTRL_KEY, 0x55)); ++ wdt_writel(wdt, CTRL, psel | WDT_BF(CTRL_KEY, 0xaa)); ++} ++ ++/* ++ * Enable and reset the watchdog. ++ */ ++static void inline at32_wdt_start(void) ++{ ++ /* 0xf is 2^16 divider = 2 sec, 0xe is 2^15 divider = 1 sec */ ++ unsigned long psel = (wdt->timeout > 1) ? 0xf : 0xe; ++ ++ wdt_writel(wdt, CTRL, WDT_BIT(CTRL_EN) ++ | WDT_BF(CTRL_PSEL, psel) ++ | WDT_BF(CTRL_KEY, 0x55)); ++ wdt_writel(wdt, CTRL, WDT_BIT(CTRL_EN) ++ | WDT_BF(CTRL_PSEL, psel) ++ | WDT_BF(CTRL_KEY, 0xaa)); ++} ++ ++/* ++ * Pat the watchdog timer. ++ */ ++static void inline at32_wdt_pat(void) ++{ ++ wdt_writel(wdt, CLR, 0x42); ++} ++ ++/* ++ * Watchdog device is opened, and watchdog starts running. ++ */ ++static int at32_wdt_open(struct inode *inode, struct file *file) ++{ ++ if (test_and_set_bit(1, &wdt->users)) ++ return -EBUSY; ++ ++ at32_wdt_start(); ++ return nonseekable_open(inode, file); ++} ++ ++/* ++ * Close the watchdog device. If CONFIG_WATCHDOG_NOWAYOUT is _not_ defined then ++ * the watchdog is also disabled. ++ */ ++static int at32_wdt_close(struct inode *inode, struct file *file) ++{ ++#ifndef CONFIG_WATCHDOG_NOWAYOUT ++ at32_wdt_stop(); ++#endif ++ clear_bit(1, &wdt->users); ++ return 0; ++} ++ ++/* ++ * Change the watchdog time interval. ++ */ ++static int at32_wdt_settimeout(int time) ++{ ++ /* ++ * All counting occurs at 1 / SLOW_CLOCK (32 kHz) and max prescaler is ++ * 2 ^ 16 allowing up to 2 seconds timeout. ++ */ ++ if ((time < TIMEOUT_MIN) || (time > TIMEOUT_MAX)) ++ return -EINVAL; ++ ++ /* ++ * Set new watchdog time. It will be used when at32_wdt_start() is ++ * called. ++ */ ++ wdt->timeout = time; ++ return 0; ++} ++ ++static struct watchdog_info at32_wdt_info = { ++ .identity = "at32ap700x watchdog", ++ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, ++}; ++ ++/* ++ * Handle commands from user-space. ++ */ ++static int at32_wdt_ioctl(struct inode *inode, struct file *file, ++ unsigned int cmd, unsigned long arg) ++{ ++ int ret = -ENOTTY; ++ int time; ++ void __user *argp = (void __user *)arg; ++ int __user *p = argp; ++ ++ switch (cmd) { ++ case WDIOC_KEEPALIVE: ++ at32_wdt_pat(); ++ ret = 0; ++ break; ++ case WDIOC_GETSUPPORT: ++ ret = copy_to_user(argp, &at32_wdt_info, ++ sizeof(at32_wdt_info)) ? -EFAULT : 0; ++ break; ++ case WDIOC_SETTIMEOUT: ++ ret = get_user(time, p); ++ if (ret) ++ break; ++ ret = at32_wdt_settimeout(time); ++ if (ret) ++ break; ++ /* Enable new time value */ ++ at32_wdt_start(); ++ /* fall through */ ++ case WDIOC_GETTIMEOUT: ++ ret = put_user(wdt->timeout, p); ++ break; ++ case WDIOC_GETSTATUS: /* fall through */ ++ case WDIOC_GETBOOTSTATUS: ++ ret = put_user(0, p); ++ break; ++ case WDIOC_SETOPTIONS: ++ ret = get_user(time, p); ++ if (ret) ++ break; ++ if (time & WDIOS_DISABLECARD) ++ at32_wdt_stop(); ++ if (time & WDIOS_ENABLECARD) ++ at32_wdt_start(); ++ ret = 0; ++ break; ++ } ++ ++ return ret; ++} ++ ++static ssize_t at32_wdt_write(struct file *file, const char *data, size_t len, ++ loff_t *ppos) ++{ ++ at32_wdt_pat(); ++ return len; ++} ++ ++static const struct file_operations at32_wdt_fops = { ++ .owner = THIS_MODULE, ++ .llseek = no_llseek, ++ .ioctl = at32_wdt_ioctl, ++ .open = at32_wdt_open, ++ .release = at32_wdt_close, ++ .write = at32_wdt_write, ++}; ++ ++static int __init at32_wdt_probe(struct platform_device *pdev) ++{ ++ struct resource *regs; ++ int ret; ++ ++ if (wdt) { ++ dev_dbg(&pdev->dev, "only 1 wdt instance supported.\n"); ++ return -EBUSY; ++ } ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) { ++ dev_dbg(&pdev->dev, "missing mmio resource\n"); ++ return -ENXIO; ++ } ++ ++ wdt = kzalloc(sizeof(struct wdt_at32ap700x), GFP_KERNEL); ++ if (!wdt) { ++ dev_dbg(&pdev->dev, "no memory for wdt structure\n"); ++ return -ENOMEM; ++ } ++ ++ wdt->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!wdt->regs) { ++ ret = -ENOMEM; ++ dev_dbg(&pdev->dev, "could not map I/O memory\n"); ++ goto err_free; ++ } ++ wdt->users = 0; ++ wdt->miscdev.minor = WATCHDOG_MINOR; ++ wdt->miscdev.name = "watchdog"; ++ wdt->miscdev.fops = &at32_wdt_fops; ++ ++ if (at32_wdt_settimeout(TIMEOUT_DEFAULT)) { ++ at32_wdt_settimeout(TIMEOUT_MAX); ++ dev_dbg(&pdev->dev, ++ "default timeout invalid, set to %d sec.\n", ++ TIMEOUT_MAX); ++ } ++ ++ ret = misc_register(&wdt->miscdev); ++ if (ret) { ++ dev_dbg(&pdev->dev, "failed to register wdt miscdev\n"); ++ goto err_iounmap; ++ } ++ ++ platform_set_drvdata(pdev, wdt); ++ wdt->miscdev.parent = &pdev->dev; ++ dev_info(&pdev->dev, "AT32AP700X WDT at 0x%p\n", wdt->regs); ++ ++ return 0; ++ ++err_iounmap: ++ iounmap(wdt->regs); ++err_free: ++ kfree(wdt); ++ wdt = NULL; ++ return ret; ++} ++ ++static int __exit at32_wdt_remove(struct platform_device *pdev) ++{ ++ if (wdt && platform_get_drvdata(pdev) == wdt) { ++ misc_deregister(&wdt->miscdev); ++ iounmap(wdt->regs); ++ kfree(wdt); ++ wdt = NULL; ++ platform_set_drvdata(pdev, NULL); ++ } ++ ++ return 0; ++} ++ ++static void at32_wdt_shutdown(struct platform_device *pdev) ++{ ++ at32_wdt_stop(); ++} ++ ++#ifdef CONFIG_PM ++static int at32_wdt_suspend(struct platform_device *pdev, pm_message_t message) ++{ ++ at32_wdt_stop(); ++ return 0; ++} ++ ++static int at32_wdt_resume(struct platform_device *pdev) ++{ ++ if (wdt->users) ++ at32_wdt_start(); ++ return 0; ++} ++#else ++#define at32_wdt_suspend NULL ++#define at32_wdt_resume NULL ++#endif ++ ++static struct platform_driver at32_wdt_driver = { ++ .remove = __exit_p(at32_wdt_remove), ++ .suspend = at32_wdt_suspend, ++ .resume = at32_wdt_resume, ++ .driver = { ++ .name = "at32_wdt", ++ .owner = THIS_MODULE, ++ }, ++ .shutdown = at32_wdt_shutdown, ++}; ++ ++static int __init at32_wdt_init(void) ++{ ++ return platform_driver_probe(&at32_wdt_driver, at32_wdt_probe); ++} ++module_init(at32_wdt_init); ++ ++static void __exit at32_wdt_exit(void) ++{ ++ platform_driver_unregister(&at32_wdt_driver); ++} ++module_exit(at32_wdt_exit); ++ ++MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); ++MODULE_DESCRIPTION("Watchdog driver for Atmel AT32AP700X"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); +diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig +index 838dc1c..80da12d 100644 +--- a/drivers/i2c/busses/Kconfig ++++ b/drivers/i2c/busses/Kconfig +@@ -4,6 +4,26 @@ + + menu "I2C Hardware Bus support" + ++config I2C_ATMELTWI ++ tristate "Atmel TWI/I2C" ++ depends on I2C ++ help ++ Atmel on-chip TWI controller. Say Y if you have an AT32 or ++ AT91-based device and want to use its built-in TWI ++ functionality. Atmel's TWI is compatible with Philips' I2C ++ protocol. If in doubt, say NO ++ ++config I2C_ATMELTWI_BAUDRATE ++ prompt "Atmel TWI baudrate" ++ depends on I2C_ATMELTWI ++ int ++ default 100000 ++ help ++ Set the TWI/I2C baudrate. This will alter the default value. A ++ different baudrate can be set by using a module parameter as well. If ++ no parameter is provided when loading, this is the value that will be ++ used. ++ + config I2C_ALI1535 + tristate "ALI 1535" + depends on PCI +diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile +index 14d1432..fd7c3b3 100644 +--- a/drivers/i2c/busses/Makefile ++++ b/drivers/i2c/busses/Makefile +@@ -52,6 +52,7 @@ obj-$(CONFIG_I2C_VIAPRO) += i2c-viapro.o + obj-$(CONFIG_I2C_VOODOO3) += i2c-voodoo3.o + obj-$(CONFIG_SCx200_ACB) += scx200_acb.o + obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o ++obj-$(CONFIG_I2C_ATMELTWI) += i2c-atmeltwi.o + + ifeq ($(CONFIG_I2C_DEBUG_BUS),y) + EXTRA_CFLAGS += -DDEBUG +diff --git a/drivers/i2c/busses/atmeltwi.h b/drivers/i2c/busses/atmeltwi.h +new file mode 100644 +index 0000000..8502ea6 +--- /dev/null ++++ b/drivers/i2c/busses/atmeltwi.h +@@ -0,0 +1,117 @@ ++/* ++ * Register definitions for the Atmel Two-Wire Interface ++ */ ++ ++#ifndef __ASM_AVR32_TWI_H__ ++#define __ASM_AVR32_TWI_H__ ++ ++/* TWI register offsets */ ++#define TWI_CR 0x0000 ++#define TWI_MMR 0x0004 ++#define TWI_SMR 0x0008 ++#define TWI_IADR 0x000c ++#define TWI_CWGR 0x0010 ++#define TWI_SR 0x0020 ++#define TWI_IER 0x0024 ++#define TWI_IDR 0x0028 ++#define TWI_IMR 0x002c ++#define TWI_RHR 0x0030 ++#define TWI_THR 0x0034 ++ ++/* Bitfields in CR */ ++#define TWI_START_OFFSET 0 ++#define TWI_START_SIZE 1 ++#define TWI_STOP_OFFSET 1 ++#define TWI_STOP_SIZE 1 ++#define TWI_MSEN_OFFSET 2 ++#define TWI_MSEN_SIZE 1 ++#define TWI_MSDIS_OFFSET 3 ++#define TWI_MSDIS_SIZE 1 ++#define TWI_SVEN_OFFSET 4 ++#define TWI_SVEN_SIZE 1 ++#define TWI_SVDIS_OFFSET 5 ++#define TWI_SVDIS_SIZE 1 ++#define TWI_SWRST_OFFSET 7 ++#define TWI_SWRST_SIZE 1 ++ ++/* Bitfields in MMR */ ++#define TWI_IADRSZ_OFFSET 8 ++#define TWI_IADRSZ_SIZE 2 ++#define TWI_MREAD_OFFSET 12 ++#define TWI_MREAD_SIZE 1 ++#define TWI_DADR_OFFSET 16 ++#define TWI_DADR_SIZE 7 ++ ++/* Bitfields in SMR */ ++#define TWI_SADR_OFFSET 16 ++#define TWI_SADR_SIZE 7 ++ ++/* Bitfields in IADR */ ++#define TWI_IADR_OFFSET 0 ++#define TWI_IADR_SIZE 24 ++ ++/* Bitfields in CWGR */ ++#define TWI_CLDIV_OFFSET 0 ++#define TWI_CLDIV_SIZE 8 ++#define TWI_CHDIV_OFFSET 8 ++#define TWI_CHDIV_SIZE 8 ++#define TWI_CKDIV_OFFSET 16 ++#define TWI_CKDIV_SIZE 3 ++ ++/* Bitfields in SR */ ++#define TWI_TXCOMP_OFFSET 0 ++#define TWI_TXCOMP_SIZE 1 ++#define TWI_RXRDY_OFFSET 1 ++#define TWI_RXRDY_SIZE 1 ++#define TWI_TXRDY_OFFSET 2 ++#define TWI_TXRDY_SIZE 1 ++#define TWI_SVDIR_OFFSET 3 ++#define TWI_SVDIR_SIZE 1 ++#define TWI_SVACC_OFFSET 4 ++#define TWI_SVACC_SIZE 1 ++#define TWI_GCACC_OFFSET 5 ++#define TWI_GCACC_SIZE 1 ++#define TWI_OVRE_OFFSET 6 ++#define TWI_OVRE_SIZE 1 ++#define TWI_UNRE_OFFSET 7 ++#define TWI_UNRE_SIZE 1 ++#define TWI_NACK_OFFSET 8 ++#define TWI_NACK_SIZE 1 ++#define TWI_ARBLST_OFFSET 9 ++#define TWI_ARBLST_SIZE 1 ++ ++/* Bitfields in RHR */ ++#define TWI_RXDATA_OFFSET 0 ++#define TWI_RXDATA_SIZE 8 ++ ++/* Bitfields in THR */ ++#define TWI_TXDATA_OFFSET 0 ++#define TWI_TXDATA_SIZE 8 ++ ++/* Constants for IADRSZ */ ++#define TWI_IADRSZ_NO_ADDR 0 ++#define TWI_IADRSZ_ONE_BYTE 1 ++#define TWI_IADRSZ_TWO_BYTES 2 ++#define TWI_IADRSZ_THREE_BYTES 3 ++ ++/* Bit manipulation macros */ ++#define TWI_BIT(name) \ ++ (1 << TWI_##name##_OFFSET) ++#define TWI_BF(name,value) \ ++ (((value) & ((1 << TWI_##name##_SIZE) - 1)) \ ++ << TWI_##name##_OFFSET) ++#define TWI_BFEXT(name,value) \ ++ (((value) >> TWI_##name##_OFFSET) \ ++ & ((1 << TWI_##name##_SIZE) - 1)) ++#define TWI_BFINS(name,value,old) \ ++ (((old) & ~(((1 << TWI_##name##_SIZE) - 1) \ ++ << TWI_##name##_OFFSET)) \ ++ | TWI_BF(name,value)) ++ ++/* Register access macros */ ++#define twi_readl(port,reg) \ ++ __raw_readl((port)->regs + TWI_##reg) ++#define twi_writel(port,reg,value) \ ++ __raw_writel((value), (port)->regs + TWI_##reg) ++ ++#endif /* __ASM_AVR32_TWI_H__ */ +diff --git a/drivers/i2c/busses/i2c-atmeltwi.c b/drivers/i2c/busses/i2c-atmeltwi.c +new file mode 100644 +index 0000000..9a3f223 +--- /dev/null ++++ b/drivers/i2c/busses/i2c-atmeltwi.c +@@ -0,0 +1,383 @@ ++/* ++ * i2c Support for Atmel's Two-Wire Interface (TWI) ++ * ++ * Based on the work of Copyright (C) 2004 Rick Bronson ++ * Converted to 2.6 by Andrew Victor <andrew at sanpeople.com> ++ * Ported to AVR32 and heavily modified by Espen Krangnes ++ * <ekrangnes at atmel.com> ++ * ++ * Copyright (C) 2006 Atmel Corporation ++ * ++ * Borrowed heavily from the original work by: ++ * Copyright (C) 2000 Philip Edelbrock <phil at stimpy.netroedge.com> ++ * ++ * Partialy rewriten by Karel Hojdar <cmkaho at seznam.cz> ++ * bugs removed, interrupt routine markedly rewritten ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ */ ++ ++ ++#include <linux/err.h> ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/slab.h> ++#include <linux/types.h> ++#include <linux/delay.h> ++#include <linux/i2c.h> ++#include <linux/init.h> ++#include <linux/clk.h> ++#include <linux/interrupt.h> ++#include <linux/irq.h> ++#include <linux/platform_device.h> ++#include <linux/completion.h> ++#include <asm/io.h> ++#include <linux/time.h> ++#include "atmeltwi.h" ++ ++static unsigned int baudrate = CONFIG_I2C_ATMELTWI_BAUDRATE; ++module_param(baudrate, uint, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP); ++MODULE_PARM_DESC(baudrate, "The TWI baudrate"); ++ ++ ++struct atmel_twi { ++ void __iomem *regs; ++ struct i2c_adapter adapter; ++ struct clk *pclk; ++ spinlock_t lock; ++ struct completion comp; ++ u32 intmask; ++ u8 *buf; ++ u8 len; ++ u8 acks_left; ++ u8 nack; ++ unsigned int irq; ++ ++}; ++#define to_atmel_twi(adap) container_of(adap, struct atmel_twi, adapter) ++ ++/* ++ * Initialize the TWI hardware registers. ++ */ ++static int __devinit twi_hwinit(struct atmel_twi *twi) ++{ ++ unsigned long cdiv, ckdiv=0; ++ ++ twi_writel(twi, IDR, ~0UL); ++ twi_writel(twi, CR, TWI_BIT(SWRST)); /*Reset peripheral*/ ++ twi_readl(twi, SR); ++ ++ cdiv = (clk_get_rate(twi->pclk) / (2 * baudrate)) - 4; ++ ++ while (cdiv > 255) { ++ ckdiv++; ++ cdiv = cdiv >> 1; ++ } ++ ++ if (ckdiv > 7) ++ return -EINVAL; ++ else ++ twi_writel(twi, CWGR, (TWI_BF(CKDIV, ckdiv) ++ | TWI_BF(CHDIV, cdiv) ++ | TWI_BF(CLDIV, cdiv))); ++ return 0; ++} ++ ++/* ++ * Waits for the i2c status register to set the specified bitmask ++ * Returns 0 if timed out (~100ms). ++ */ ++static short twi_complete(struct atmel_twi *twi, u32 mask) ++{ ++ int timeout = msecs_to_jiffies(100); ++ ++ twi->intmask = mask; ++ init_completion(&twi->comp); ++ ++ twi_writel(twi, IER, mask); ++ ++ if (!wait_for_completion_timeout(&twi->comp, timeout)) { ++ /* RESET TWI interface */ ++ twi_writel(twi, CR, TWI_BIT(SWRST)); ++ ++ /* Reinitialize TWI */ ++ twi_hwinit(twi); ++ ++ return -ETIMEDOUT; ++ } ++ return 0; ++} ++ ++/* ++ * Generic i2c master transfer entrypoint. ++ */ ++static int twi_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num) ++{ ++ struct atmel_twi *twi = to_atmel_twi(adap); ++ struct i2c_msg *pmsg; ++ int i; ++ ++ /* get first message */ ++ pmsg = msgs; ++ ++ dev_dbg(&adap->dev, "twi_xfer: processing %d messages:\n", num); ++ ++ twi->nack = 0; ++ for (i = 0; i < num; i++, pmsg++) { ++ twi->len = pmsg->len; ++ twi->buf = pmsg->buf; ++ twi->acks_left = pmsg->len; ++ twi_writel(twi, MMR, TWI_BF(DADR, pmsg->addr) | ++ (pmsg->flags & I2C_M_RD ? TWI_BIT(MREAD) : 0)); ++ twi_writel(twi, IADR, TWI_BF(IADR, pmsg->addr)); ++ ++ dev_dbg(&adap->dev,"#%d: internal addr %d %s byte%s %s 0x%02x\n", ++ i,pmsg->len, pmsg->flags & I2C_M_RD ? "reading" : "writing", ++ pmsg->len > 1 ? "s" : "", ++ pmsg->flags & I2C_M_RD ? "from" : "to", pmsg->addr); ++ ++ /* enable */ ++ twi_writel(twi, CR, TWI_BIT(MSEN)); ++ ++ if (pmsg->flags & I2C_M_RD) { ++ if (twi->len == 1) ++ twi_writel(twi, CR, ++ TWI_BIT(START) | TWI_BIT(STOP)); ++ else ++ twi_writel(twi, CR, TWI_BIT(START)); ++ ++ if (twi_complete(twi, TWI_BIT(RXRDY)) == -ETIMEDOUT) { ++ dev_dbg(&adap->dev, "RXRDY timeout. Stopped with %d bytes left\n", ++ twi->acks_left); ++ return -ETIMEDOUT; ++ } ++ } else { ++ twi_writel(twi, THR, twi->buf[0]); ++ if (twi_complete(twi, TWI_BIT(TXRDY)) == -ETIMEDOUT) { ++ dev_dbg(&adap->dev, "TXRDY timeout. Stopped with %d bytes left\n", ++ twi->acks_left); ++ return -ETIMEDOUT; ++ } ++ ++ if (twi->nack) ++ return -ENODEV; ++ } ++ ++ /* Disable TWI interface */ ++ twi_writel(twi, CR, TWI_BIT(MSDIS)); ++ ++ } /* end cur msg */ ++ ++ return i; ++} ++ ++ ++static irqreturn_t twi_interrupt(int irq, void *dev_id) ++{ ++ struct atmel_twi *twi = dev_id; ++ int status = twi_readl(twi, SR); ++ ++ /* Save state for later debug prints */ ++ int old_mask = twi->intmask; ++ int old_status = status; ++ ++ if (twi->intmask & status) { ++ if (status & TWI_BIT(NACK)) ++ goto nack; ++ ++ status &= twi->intmask; ++ ++ if (status & TWI_BIT(TXCOMP)) ++ goto complete; ++ ++ else if (status & TWI_BIT(RXRDY)) { ++ if ( twi->acks_left > 0 ) { ++ twi->buf[twi->len - twi->acks_left] = ++ twi_readl(twi, RHR); ++ twi->acks_left--; ++ } ++ if ( twi->acks_left == 1 ) ++ twi_writel(twi, CR, TWI_BIT(STOP)); ++ ++ if (twi->acks_left == 0 ) { ++ twi->intmask = TWI_BIT(TXCOMP); ++ twi_writel(twi, IER, TWI_BIT(TXCOMP)); ++ } ++ } else if (status & TWI_BIT(TXRDY)) { ++ twi->acks_left--; ++ if ( twi->acks_left == 0 ) { ++ twi->intmask = TWI_BIT(TXCOMP); ++ twi_writel(twi, IER, TWI_BIT(TXCOMP)); ++ } else if (twi->acks_left > 0) ++ twi_writel(twi, THR, twi->buf[twi->len - twi->acks_left]); ++ } ++ } ++ ++ dev_dbg(&twi->adapter.dev, ++ "TWI ISR, SR 0x%08X, intmask 0x%08X, acks_left %i.\n", ++ old_status, old_mask, twi->acks_left); ++ ++ return IRQ_HANDLED; ++ ++nack: ++ dev_dbg(&twi->adapter.dev, "NACK received!\n"); ++ twi->nack = 1; ++ ++complete: ++ twi_writel(twi, IDR, ~0UL); ++ complete(&twi->comp); ++ ++ dev_dbg(&twi->adapter.dev, ++ "TWI ISR, SR 0x%08X, intmask 0x%08X, \ ++ acks_left %i - completed.\n", ++ old_status, old_mask, twi->acks_left); ++ ++ return IRQ_HANDLED; ++} ++ ++ ++/* ++ * Return list of supported functionality. ++ */ ++static u32 twi_func(struct i2c_adapter *adapter) ++{ ++ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; ++} ++ ++/* For now, we only handle combined mode (smbus) */ ++static struct i2c_algorithm twi_algorithm = { ++ .master_xfer = twi_xfer, ++ .functionality = twi_func, ++}; ++ ++/* ++ * Main initialization routine. ++ */ ++static int __devinit twi_probe(struct platform_device *pdev) ++{ ++ struct atmel_twi *twi; ++ struct resource *regs; ++ struct clk *pclk; ++ struct i2c_adapter *adapter; ++ int rc, irq; ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) ++ return -ENXIO; ++ ++ pclk = clk_get(&pdev->dev, "pclk"); ++ if (IS_ERR(pclk)) ++ return PTR_ERR(pclk); ++ clk_enable(pclk); ++ ++ rc = -ENOMEM; ++ twi = kzalloc(sizeof(struct atmel_twi), GFP_KERNEL); ++ if (!twi) { ++ dev_err(&pdev->dev, "can't allocate interface!\n"); ++ goto err_alloc_twi; ++ } ++ ++ twi->pclk = pclk; ++ twi->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!twi->regs) ++ goto err_ioremap; ++ ++ irq = platform_get_irq(pdev,0); ++ rc = request_irq(irq, twi_interrupt, 0, "twi", twi); ++ if (rc) { ++ dev_err(&pdev->dev, "can't bind irq!\n"); ++ goto err_irq; ++ } ++ twi->irq = irq; ++ ++ rc = twi_hwinit(twi); ++ if (rc) { ++ dev_err(&pdev->dev, "Unable to set baudrate\n"); ++ goto err_hw_init; ++ } ++ ++ adapter = &twi->adapter; ++ sprintf(adapter->name, "TWI"); ++ adapter->algo = &twi_algorithm; ++ adapter->class = I2C_CLASS_HWMON; ++ adapter->dev.parent = &pdev->dev; ++ ++ platform_set_drvdata(pdev, twi); ++ ++ rc = i2c_add_adapter(adapter); ++ if (rc) { ++ dev_err(&pdev->dev, "Adapter %s registration failed\n", ++ adapter->name); ++ goto err_register; ++ } ++ ++ dev_info(&pdev->dev, "Atmel TWI i2c bus device (baudrate %dk) at 0x%08lx.\n", ++ baudrate/1000, (unsigned long)regs->start); ++ ++ return 0; ++ ++ ++err_register: ++ platform_set_drvdata(pdev, NULL); ++ ++err_hw_init: ++ free_irq(irq, twi); ++ ++err_irq: ++ iounmap(twi->regs); ++ ++err_ioremap: ++ kfree(twi); ++ ++err_alloc_twi: ++ clk_disable(pclk); ++ clk_put(pclk); ++ ++ return rc; ++} ++ ++static int __devexit twi_remove(struct platform_device *pdev) ++{ ++ struct atmel_twi *twi = platform_get_drvdata(pdev); ++ int res; ++ ++ platform_set_drvdata(pdev, NULL); ++ res = i2c_del_adapter(&twi->adapter); ++ twi_writel(twi, CR, TWI_BIT(MSDIS)); ++ iounmap(twi->regs); ++ clk_disable(twi->pclk); ++ clk_put(twi->pclk); ++ free_irq(twi->irq, twi); ++ kfree(twi); ++ ++ return res; ++} ++ ++static struct platform_driver twi_driver = { ++ .probe = twi_probe, ++ .remove = __devexit_p(twi_remove), ++ .driver = { ++ .name = "atmel_twi", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init atmel_twi_init(void) ++{ ++ return platform_driver_register(&twi_driver); ++} ++ ++static void __exit atmel_twi_exit(void) ++{ ++ platform_driver_unregister(&twi_driver); ++} ++ ++module_init(atmel_twi_init); ++module_exit(atmel_twi_exit); ++ ++MODULE_AUTHOR("Espen Krangnes"); ++MODULE_DESCRIPTION("I2C driver for Atmel TWI"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig +index 50e06e8..7bbea09 100644 +--- a/drivers/input/mouse/Kconfig ++++ b/drivers/input/mouse/Kconfig +@@ -216,4 +216,20 @@ config MOUSE_HIL + help + Say Y here to support HIL pointers. + ++config MOUSE_GPIO ++ tristate "GPIO mouse" ++ depends on GENERIC_GPIO ++ select INPUT_POLLDEV ++ help ++ This driver simulates a mouse on GPIO lines of various CPUs (and some ++ other chips). ++ ++ Say Y here if your device has buttons or a simple joystick connected ++ directly to GPIO lines. Your board-specific setup logic must also ++ provide a platform device and platform data saying which GPIOs are ++ used. ++ ++ To compile this driver as a module, choose M here: the ++ module will be called gpio_mouse. ++ + endif +diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile +index aa4ba87..9e6e363 100644 +--- a/drivers/input/mouse/Makefile ++++ b/drivers/input/mouse/Makefile +@@ -15,6 +15,7 @@ obj-$(CONFIG_MOUSE_PS2) += psmouse.o + obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o + obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o + obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o ++obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o + + psmouse-objs := psmouse-base.o synaptics.o + +diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c +new file mode 100644 +index 0000000..0936d6b +--- /dev/null ++++ b/drivers/input/mouse/gpio_mouse.c +@@ -0,0 +1,196 @@ ++/* ++ * Driver for simulating a mouse on GPIO lines. ++ * ++ * Copyright (C) 2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/init.h> ++#include <linux/version.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/input-polldev.h> ++#include <linux/gpio_mouse.h> ++ ++#include <asm/gpio.h> ++ ++/* ++ * Timer function which is run every scan_ms ms when the device is opened. ++ * The dev input varaible is set to the the input_dev pointer. ++ */ ++static void gpio_mouse_scan(struct input_polled_dev *dev) ++{ ++ struct gpio_mouse_platform_data *gpio = dev->private; ++ struct input_dev *input = dev->input; ++ int x, y; ++ ++ if (gpio->bleft >= 0) ++ input_report_key(input, BTN_LEFT, ++ gpio_get_value(gpio->bleft) ^ gpio->polarity); ++ if (gpio->bmiddle >= 0) ++ input_report_key(input, BTN_MIDDLE, ++ gpio_get_value(gpio->bmiddle) ^ gpio->polarity); ++ if (gpio->bright >= 0) ++ input_report_key(input, BTN_RIGHT, ++ gpio_get_value(gpio->bright) ^ gpio->polarity); ++ ++ x = (gpio_get_value(gpio->right) ^ gpio->polarity) ++ - (gpio_get_value(gpio->left) ^ gpio->polarity); ++ y = (gpio_get_value(gpio->down) ^ gpio->polarity) ++ - (gpio_get_value(gpio->up) ^ gpio->polarity); ++ ++ input_report_rel(input, REL_X, x); ++ input_report_rel(input, REL_Y, y); ++ input_sync(input); ++} ++ ++static int __init gpio_mouse_probe(struct platform_device *pdev) ++{ ++ struct gpio_mouse_platform_data *pdata = pdev->dev.platform_data; ++ struct input_polled_dev *input_poll; ++ struct input_dev *input; ++ int pin, i; ++ int error; ++ ++ if (!pdata) { ++ dev_err(&pdev->dev, "no platform data\n"); ++ error = -ENXIO; ++ goto out; ++ } ++ ++ if (pdata->scan_ms < 0) { ++ dev_err(&pdev->dev, "invalid scan time\n"); ++ error = -EINVAL; ++ goto out; ++ } ++ ++ for (i = 0; i < GPIO_MOUSE_PIN_MAX; i++) { ++ pin = pdata->pins[i]; ++ ++ if (pin < 0) { ++ ++ if (i <= GPIO_MOUSE_PIN_RIGHT) { ++ /* Mouse direction is required. */ ++ dev_err(&pdev->dev, ++ "missing GPIO for directions\n"); ++ error = -EINVAL; ++ goto out_free_gpios; ++ } ++ ++ if (i == GPIO_MOUSE_PIN_BLEFT) ++ dev_dbg(&pdev->dev, "no left button defined\n"); ++ ++ } else { ++ error = gpio_request(pin, "gpio_mouse"); ++ if (error) { ++ dev_err(&pdev->dev, "fail %d pin (%d idx)\n", ++ pin, i); ++ goto out_free_gpios; ++ } ++ ++ gpio_direction_input(pin); ++ } ++ } ++ ++ input_poll = input_allocate_polled_device(); ++ if (!input_poll) { ++ dev_err(&pdev->dev, "not enough memory for input device\n"); ++ error = -ENOMEM; ++ goto out_free_gpios; ++ } ++ ++ platform_set_drvdata(pdev, input_poll); ++ ++ /* set input-polldev handlers */ ++ input_poll->private = pdata; ++ input_poll->poll = gpio_mouse_scan; ++ input_poll->poll_interval = pdata->scan_ms; ++ ++ input = input_poll->input; ++ input->name = pdev->name; ++ input->id.bustype = BUS_HOST; ++ input->dev.parent = &pdev->dev; ++ ++ input_set_capability(input, EV_REL, REL_X); ++ input_set_capability(input, EV_REL, REL_Y); ++ if (pdata->bleft >= 0) ++ input_set_capability(input, EV_KEY, BTN_LEFT); ++ if (pdata->bmiddle >= 0) ++ input_set_capability(input, EV_KEY, BTN_MIDDLE); ++ if (pdata->bright >= 0) ++ input_set_capability(input, EV_KEY, BTN_RIGHT); ++ ++ error = input_register_polled_device(input_poll); ++ if (error) { ++ dev_err(&pdev->dev, "could not register input device\n"); ++ goto out_free_polldev; ++ } ++ ++ dev_dbg(&pdev->dev, "%d ms scan time, buttons: %s%s%s\n", ++ pdata->scan_ms, ++ pdata->bleft < 0 ? "" : "left ", ++ pdata->bmiddle < 0 ? "" : "middle ", ++ pdata->bright < 0 ? "" : "right"); ++ ++ return 0; ++ ++ out_free_polldev: ++ input_free_polled_device(input_poll); ++ platform_set_drvdata(pdev, NULL); ++ ++ out_free_gpios: ++ while (--i >= 0) { ++ pin = pdata->pins[i]; ++ if (pin) ++ gpio_free(pin); ++ } ++ out: ++ return error; ++} ++ ++static int __devexit gpio_mouse_remove(struct platform_device *pdev) ++{ ++ struct input_polled_dev *input = platform_get_drvdata(pdev); ++ struct gpio_mouse_platform_data *pdata = input->private; ++ int pin, i; ++ ++ input_unregister_polled_device(input); ++ input_free_polled_device(input); ++ ++ for (i = 0; i < GPIO_MOUSE_PIN_MAX; i++) { ++ pin = pdata->pins[i]; ++ if (pin >= 0) ++ gpio_free(pin); ++ } ++ ++ platform_set_drvdata(pdev, NULL); ++ ++ return 0; ++} ++ ++struct platform_driver gpio_mouse_device_driver = { ++ .remove = __devexit_p(gpio_mouse_remove), ++ .driver = { ++ .name = "gpio_mouse", ++ } ++}; ++ ++static int __init gpio_mouse_init(void) ++{ ++ return platform_driver_probe(&gpio_mouse_device_driver, ++ gpio_mouse_probe); ++} ++module_init(gpio_mouse_init); ++ ++static void __exit gpio_mouse_exit(void) ++{ ++ platform_driver_unregister(&gpio_mouse_device_driver); ++} ++module_exit(gpio_mouse_exit); ++ ++MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); ++MODULE_DESCRIPTION("GPIO mouse driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig +index 87d2046..9ce3ca1 100644 +--- a/drivers/leds/Kconfig ++++ b/drivers/leds/Kconfig +@@ -95,6 +95,14 @@ config LEDS_COBALT + help + This option enables support for the front LED on Cobalt Server + ++config LEDS_GPIO ++ tristate "LED Support for GPIO connected LEDs" ++ depends on LEDS_CLASS && GENERIC_GPIO ++ help ++ This option enables support for the LEDs connected to GPIO ++ outputs. To be useful the particular board must have LEDs ++ and they must be connected to the GPIO lines. ++ + comment "LED Triggers" + + config LEDS_TRIGGERS +diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile +index aa2c18e..f8995c9 100644 +--- a/drivers/leds/Makefile ++++ b/drivers/leds/Makefile +@@ -16,6 +16,7 @@ obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o + obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o + obj-$(CONFIG_LEDS_H1940) += leds-h1940.o + obj-$(CONFIG_LEDS_COBALT) += leds-cobalt.o ++obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o + + # LED Triggers + obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o +diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c +new file mode 100644 +index 0000000..47d90db +--- /dev/null ++++ b/drivers/leds/leds-gpio.c +@@ -0,0 +1,199 @@ ++/* ++ * LEDs driver for GPIOs ++ * ++ * Copyright (C) 2007 8D Technologies inc. ++ * Raphael Assenat <raph@8d.com> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ */ ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/platform_device.h> ++#include <linux/leds.h> ++#include <linux/workqueue.h> ++ ++#include <asm/gpio.h> ++ ++struct gpio_led_data { ++ struct led_classdev cdev; ++ unsigned gpio; ++ struct work_struct work; ++ u8 new_level; ++ u8 can_sleep; ++ u8 active_low; ++}; ++ ++static void gpio_led_work(struct work_struct *work) ++{ ++ struct gpio_led_data *led_dat = ++ container_of(work, struct gpio_led_data, work); ++ ++ gpio_set_value_cansleep(led_dat->gpio, led_dat->new_level); ++} ++ ++static void gpio_led_set(struct led_classdev *led_cdev, ++ enum led_brightness value) ++{ ++ struct gpio_led_data *led_dat = ++ container_of(led_cdev, struct gpio_led_data, cdev); ++ int level; ++ ++ if (value == LED_OFF) ++ level = 0; ++ else ++ level = 1; ++ ++ if (led_dat->active_low) ++ level = !level; ++ ++ /* setting GPIOs with I2C/etc requires a preemptible task context */ ++ if (led_dat->can_sleep) { ++ if (preempt_count()) { ++ led_dat->new_level = level; ++ schedule_work(&led_dat->work); ++ } else ++ gpio_set_value_cansleep(led_dat->gpio, level); ++ } else ++ gpio_set_value(led_dat->gpio, level); ++} ++ ++static int __init gpio_led_probe(struct platform_device *pdev) ++{ ++ struct gpio_led_platform_data *pdata = pdev->dev.platform_data; ++ struct gpio_led *cur_led; ++ struct gpio_led_data *leds_data, *led_dat; ++ int i, ret = 0; ++ ++ if (!pdata) ++ return -EBUSY; ++ ++ leds_data = kzalloc(sizeof(struct gpio_led_data) * pdata->num_leds, ++ GFP_KERNEL); ++ if (!leds_data) ++ return -ENOMEM; ++ ++ for (i = 0; i < pdata->num_leds; i++) { ++ cur_led = &pdata->leds[i]; ++ led_dat = &leds_data[i]; ++ ++ led_dat->cdev.name = cur_led->name; ++ led_dat->cdev.default_trigger = cur_led->default_trigger; ++ led_dat->gpio = cur_led->gpio; ++ led_dat->can_sleep = gpio_cansleep(cur_led->gpio); ++ led_dat->active_low = cur_led->active_low; ++ led_dat->cdev.brightness_set = gpio_led_set; ++ led_dat->cdev.brightness = cur_led->active_low ? LED_FULL : LED_OFF; ++ ++ ret = gpio_request(led_dat->gpio, led_dat->cdev.name); ++ if (ret < 0) ++ goto err; ++ ++ gpio_direction_output(led_dat->gpio, led_dat->active_low); ++ ++ ret = led_classdev_register(&pdev->dev, &led_dat->cdev); ++ if (ret < 0) { ++ gpio_free(led_dat->gpio); ++ goto err; ++ } ++ ++ INIT_WORK(&led_dat->work, gpio_led_work); ++ } ++ ++ platform_set_drvdata(pdev, leds_data); ++ ++ return 0; ++ ++err: ++ if (i > 0) { ++ for (i = i - 1; i >= 0; i--) { ++ led_classdev_unregister(&leds_data[i].cdev); ++ gpio_free(leds_data[i].gpio); ++ } ++ } ++ ++ flush_scheduled_work(); ++ kfree(leds_data); ++ ++ return ret; ++} ++ ++static int __exit gpio_led_remove(struct platform_device *pdev) ++{ ++ int i; ++ struct gpio_led_platform_data *pdata = pdev->dev.platform_data; ++ struct gpio_led_data *leds_data; ++ ++ leds_data = platform_get_drvdata(pdev); ++ ++ for (i = 0; i < pdata->num_leds; i++) { ++ led_classdev_unregister(&leds_data[i].cdev); ++ gpio_free(leds_data[i].gpio); ++ } ++ ++ kfree(leds_data); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++static int gpio_led_suspend(struct platform_device *pdev, pm_message_t state) ++{ ++ struct gpio_led_platform_data *pdata = pdev->dev.platform_data; ++ struct gpio_led_data *leds_data; ++ int i; ++ ++ leds_data = platform_get_drvdata(pdev); ++ ++ for (i = 0; i < pdata->num_leds; i++) ++ led_classdev_suspend(&leds_data[i].cdev); ++ ++ return 0; ++} ++ ++static int gpio_led_resume(struct platform_device *pdev) ++{ ++ struct gpio_led_platform_data *pdata = pdev->dev.platform_data; ++ struct gpio_led_data *leds_data; ++ int i; ++ ++ leds_data = platform_get_drvdata(pdev); ++ ++ for (i = 0; i < pdata->num_leds; i++) ++ led_classdev_resume(&leds_data[i].cdev); ++ ++ return 0; ++} ++#else ++#define gpio_led_suspend NULL ++#define gpio_led_resume NULL ++#endif ++ ++static struct platform_driver gpio_led_driver = { ++ .remove = __exit_p(gpio_led_remove), ++ .suspend = gpio_led_suspend, ++ .resume = gpio_led_resume, ++ .driver = { ++ .name = "leds-gpio", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init gpio_led_init(void) ++{ ++ return platform_driver_probe(&gpio_led_driver, gpio_led_probe); ++} ++ ++static void __exit gpio_led_exit(void) ++{ ++ platform_driver_unregister(&gpio_led_driver); ++} ++ ++module_init(gpio_led_init); ++module_exit(gpio_led_exit); ++ ++MODULE_AUTHOR("Raphael Assenat <raph@8d.com>"); ++MODULE_DESCRIPTION("GPIO LED driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig +index 616eee9..0810d83 100644 +--- a/drivers/misc/Kconfig ++++ b/drivers/misc/Kconfig +@@ -187,5 +187,15 @@ config THINKPAD_ACPI_BAY + + If you are not sure, say Y here. + ++config ATMEL_SSC ++ tristate "Device driver for Atmel SSC peripheral" ++ depends on AVR32 || ARCH_AT91 ++ ---help--- ++ This option enables device driver support for Atmel Syncronized ++ Serial Communication peripheral (SSC). ++ ++ The SSC peripheral supports a wide variety of serial frame based ++ communications, i.e. I2S, SPI, etc. + ++ If unsure, say N. + endmenu +diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile +index 8abbf2f..2d52cc6 100644 +--- a/drivers/misc/Makefile ++++ b/drivers/misc/Makefile +@@ -14,3 +14,4 @@ obj-$(CONFIG_PHANTOM) += phantom.o + obj-$(CONFIG_SGI_IOC4) += ioc4.o + obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o + obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o ++obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o +diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c +new file mode 100644 +index 0000000..058ccac +--- /dev/null ++++ b/drivers/misc/atmel-ssc.c +@@ -0,0 +1,174 @@ ++/* ++ * Atmel SSC driver ++ * ++ * Copyright (C) 2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/platform_device.h> ++#include <linux/list.h> ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/list.h> ++#include <linux/spinlock.h> ++#include <linux/atmel-ssc.h> ++ ++/* Serialize access to ssc_list and user count */ ++static DEFINE_SPINLOCK(user_lock); ++static LIST_HEAD(ssc_list); ++ ++struct ssc_device *ssc_request(unsigned int ssc_num) ++{ ++ int ssc_valid = 0; ++ struct ssc_device *ssc; ++ ++ spin_lock(&user_lock); ++ list_for_each_entry(ssc, &ssc_list, list) { ++ if (ssc->pdev->id == ssc_num) { ++ ssc_valid = 1; ++ break; ++ } ++ } ++ ++ if (!ssc_valid) { ++ spin_unlock(&user_lock); ++ dev_dbg(&ssc->pdev->dev, "could not find requested device\n"); ++ return ERR_PTR(-ENODEV); ++ } ++ ++ if (ssc->user) { ++ spin_unlock(&user_lock); ++ dev_dbg(&ssc->pdev->dev, "module busy\n"); ++ return ERR_PTR(-EBUSY); ++ } ++ ssc->user++; ++ spin_unlock(&user_lock); ++ ++ clk_enable(ssc->clk); ++ ++ return ssc; ++} ++EXPORT_SYMBOL(ssc_request); ++ ++void ssc_free(struct ssc_device *ssc) ++{ ++ spin_lock(&user_lock); ++ if (ssc->user) { ++ ssc->user--; ++ clk_disable(ssc->clk); ++ } else { ++ dev_dbg(&ssc->pdev->dev, "device already free\n"); ++ } ++ spin_unlock(&user_lock); ++} ++EXPORT_SYMBOL(ssc_free); ++ ++static int __init ssc_probe(struct platform_device *pdev) ++{ ++ int retval = 0; ++ struct resource *regs; ++ struct ssc_device *ssc; ++ ++ ssc = kzalloc(sizeof(struct ssc_device), GFP_KERNEL); ++ if (!ssc) { ++ dev_dbg(&pdev->dev, "out of memory\n"); ++ retval = -ENOMEM; ++ goto out; ++ } ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) { ++ dev_dbg(&pdev->dev, "no mmio resource defined\n"); ++ retval = -ENXIO; ++ goto out_free; ++ } ++ ++ ssc->clk = clk_get(&pdev->dev, "pclk"); ++ if (IS_ERR(ssc->clk)) { ++ dev_dbg(&pdev->dev, "no pclk clock defined\n"); ++ retval = -ENXIO; ++ goto out_free; ++ } ++ ++ ssc->pdev = pdev; ++ ssc->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!ssc->regs) { ++ dev_dbg(&pdev->dev, "ioremap failed\n"); ++ retval = -EINVAL; ++ goto out_clk; ++ } ++ ++ /* disable all interrupts */ ++ clk_enable(ssc->clk); ++ ssc_writel(ssc->regs, IDR, ~0UL); ++ ssc_readl(ssc->regs, SR); ++ clk_disable(ssc->clk); ++ ++ ssc->irq = platform_get_irq(pdev, 0); ++ if (!ssc->irq) { ++ dev_dbg(&pdev->dev, "could not get irq\n"); ++ retval = -ENXIO; ++ goto out_unmap; ++ } ++ ++ spin_lock(&user_lock); ++ list_add_tail(&ssc->list, &ssc_list); ++ spin_unlock(&user_lock); ++ ++ platform_set_drvdata(pdev, ssc); ++ ++ dev_info(&pdev->dev, "Atmel SSC device at 0x%p (irq %d)\n", ++ ssc->regs, ssc->irq); ++ ++ goto out; ++ ++out_unmap: ++ iounmap(ssc->regs); ++out_clk: ++ clk_put(ssc->clk); ++out_free: ++ kfree(ssc); ++out: ++ return retval; ++} ++ ++static int __devexit ssc_remove(struct platform_device *pdev) ++{ ++ struct ssc_device *ssc = platform_get_drvdata(pdev); ++ ++ spin_lock(&user_lock); ++ iounmap(ssc->regs); ++ clk_put(ssc->clk); ++ list_del(&ssc->list); ++ kfree(ssc); ++ spin_unlock(&user_lock); ++ ++ return 0; ++} ++ ++static struct platform_driver ssc_driver = { ++ .remove = __devexit_p(ssc_remove), ++ .driver = { ++ .name = "ssc", ++ }, ++}; ++ ++static int __init ssc_init(void) ++{ ++ return platform_driver_probe(&ssc_driver, ssc_probe); ++} ++module_init(ssc_init); ++ ++static void __exit ssc_exit(void) ++{ ++ platform_driver_unregister(&ssc_driver); ++} ++module_exit(ssc_exit); ++ ++MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); ++MODULE_DESCRIPTION("SSC driver for Atmel AVR32 and AT91"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig +index e23082f..1de1716 100644 +--- a/drivers/mmc/host/Kconfig ++++ b/drivers/mmc/host/Kconfig +@@ -74,6 +74,16 @@ config MMC_AT91 + + If unsure, say N. + ++config MMC_ATMELMCI ++ tristate "Atmel Multimedia Card Interface support" ++ depends on AVR32 && MMC ++ help ++ This selects the Atmel Multimedia Card Interface. If you have ++ a AT91 (ARM) or AT32 (AVR32) platform with a Multimedia Card ++ slot, say Y or M here. ++ ++ If unsure, say N. ++ + config MMC_IMX + tristate "Motorola i.MX Multimedia Card Interface support" + depends on ARCH_IMX +diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile +index 6685f64..4b8e6e2 100644 +--- a/drivers/mmc/host/Makefile ++++ b/drivers/mmc/host/Makefile +@@ -14,5 +14,6 @@ obj-$(CONFIG_MMC_WBSD) += wbsd.o + obj-$(CONFIG_MMC_AU1X) += au1xmmc.o + obj-$(CONFIG_MMC_OMAP) += omap.o + obj-$(CONFIG_MMC_AT91) += at91_mci.o ++obj-$(CONFIG_MMC_ATMELMCI) += atmel-mci.o + obj-$(CONFIG_MMC_TIFM_SD) += tifm_sd.o + +diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c +new file mode 100644 +index 0000000..74d343f +--- /dev/null ++++ b/drivers/mmc/host/atmel-mci.c +@@ -0,0 +1,1217 @@ ++/* ++ * Atmel MultiMedia Card Interface driver ++ * ++ * Copyright (C) 2004-2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#include <linux/blkdev.h> ++#include <linux/clk.h> ++#include <linux/device.h> ++#include <linux/dma-mapping.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/ioport.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++ ++#include <linux/mmc/host.h> ++ ++#include <asm/dma-controller.h> ++#include <asm/io.h> ++#include <asm/arch/board.h> ++#include <asm/arch/gpio.h> ++ ++#include "atmel-mci.h" ++ ++#define DRIVER_NAME "atmel_mci" ++ ++#define MCI_CMD_ERROR_FLAGS (MCI_BIT(RINDE) | MCI_BIT(RDIRE) | \ ++ MCI_BIT(RCRCE) | MCI_BIT(RENDE) | \ ++ MCI_BIT(RTOE)) ++#define MCI_DATA_ERROR_FLAGS (MCI_BIT(DCRCE) | MCI_BIT(DTOE) | \ ++ MCI_BIT(OVRE) | MCI_BIT(UNRE)) ++ ++enum { ++ EVENT_CMD_COMPLETE = 0, ++ EVENT_CMD_ERROR, ++ EVENT_DATA_COMPLETE, ++ EVENT_DATA_ERROR, ++ EVENT_STOP_SENT, ++ EVENT_STOP_COMPLETE, ++ EVENT_STOP_ERROR, ++ EVENT_DMA_ERROR, ++ EVENT_CARD_DETECT, ++}; ++ ++struct atmel_mci_dma { ++ struct dma_request_sg req; ++ unsigned short rx_periph_id; ++ unsigned short tx_periph_id; ++}; ++ ++struct atmel_mci { ++ struct mmc_host *mmc; ++ void __iomem *regs; ++ struct atmel_mci_dma dma; ++ ++ struct mmc_request *mrq; ++ struct mmc_command *cmd; ++ struct mmc_data *data; ++ ++ u32 stop_cmdr; ++ u32 stop_iflags; ++ ++ struct tasklet_struct tasklet; ++ unsigned long pending_events; ++ unsigned long completed_events; ++ u32 error_status; ++ ++ int present; ++ int detect_pin; ++ int wp_pin; ++ ++ unsigned long bus_hz; ++ unsigned long mapbase; ++ struct clk *mck; ++ struct platform_device *pdev; ++ ++#ifdef CONFIG_DEBUG_FS ++ struct dentry *debugfs_root; ++ struct dentry *debugfs_regs; ++ struct dentry *debugfs_req; ++ struct dentry *debugfs_pending_events; ++ struct dentry *debugfs_completed_events; ++#endif ++}; ++ ++/* Those printks take an awful lot of time... */ ++#ifndef DEBUG ++static unsigned int fmax = 15000000U; ++#else ++static unsigned int fmax = 1000000U; ++#endif ++module_param(fmax, uint, 0444); ++MODULE_PARM_DESC(fmax, "Max frequency in Hz of the MMC bus clock"); ++ ++/* Test bit macros for completed events */ ++#define mci_cmd_is_complete(host) \ ++ test_bit(EVENT_CMD_COMPLETE, &host->completed_events) ++#define mci_cmd_error_is_complete(host) \ ++ test_bit(EVENT_CMD_ERROR, &host->completed_events) ++#define mci_data_is_complete(host) \ ++ test_bit(EVENT_DATA_COMPLETE, &host->completed_events) ++#define mci_data_error_is_complete(host) \ ++ test_bit(EVENT_DATA_ERROR, &host->completed_events) ++#define mci_stop_sent_is_complete(host) \ ++ test_bit(EVENT_STOP_SENT, &host->completed_events) ++#define mci_stop_is_complete(host) \ ++ test_bit(EVENT_STOP_COMPLETE, &host->completed_events) ++#define mci_stop_error_is_complete(host) \ ++ test_bit(EVENT_STOP_ERROR, &host->completed_events) ++#define mci_dma_error_is_complete(host) \ ++ test_bit(EVENT_DMA_ERROR, &host->completed_events) ++#define mci_card_detect_is_complete(host) \ ++ test_bit(EVENT_CARD_DETECT, &host->completed_events) ++ ++/* Test and clear bit macros for pending events */ ++#define mci_clear_cmd_is_pending(host) \ ++ test_and_clear_bit(EVENT_CMD_COMPLETE, &host->pending_events) ++#define mci_clear_cmd_error_is_pending(host) \ ++ test_and_clear_bit(EVENT_CMD_ERROR, &host->pending_events) ++#define mci_clear_data_is_pending(host) \ ++ test_and_clear_bit(EVENT_DATA_COMPLETE, &host->pending_events) ++#define mci_clear_data_error_is_pending(host) \ ++ test_and_clear_bit(EVENT_DATA_ERROR, &host->pending_events) ++#define mci_clear_stop_sent_is_pending(host) \ ++ test_and_clear_bit(EVENT_STOP_SENT, &host->pending_events) ++#define mci_clear_stop_is_pending(host) \ ++ test_and_clear_bit(EVENT_STOP_COMPLETE, &host->pending_events) ++#define mci_clear_stop_error_is_pending(host) \ ++ test_and_clear_bit(EVENT_STOP_ERROR, &host->pending_events) ++#define mci_clear_dma_error_is_pending(host) \ ++ test_and_clear_bit(EVENT_DMA_ERROR, &host->pending_events) ++#define mci_clear_card_detect_is_pending(host) \ ++ test_and_clear_bit(EVENT_CARD_DETECT, &host->pending_events) ++ ++/* Test and set bit macros for completed events */ ++#define mci_set_cmd_is_completed(host) \ ++ test_and_set_bit(EVENT_CMD_COMPLETE, &host->completed_events) ++#define mci_set_cmd_error_is_completed(host) \ ++ test_and_set_bit(EVENT_CMD_ERROR, &host->completed_events) ++#define mci_set_data_is_completed(host) \ ++ test_and_set_bit(EVENT_DATA_COMPLETE, &host->completed_events) ++#define mci_set_data_error_is_completed(host) \ ++ test_and_set_bit(EVENT_DATA_ERROR, &host->completed_events) ++#define mci_set_stop_sent_is_completed(host) \ ++ test_and_set_bit(EVENT_STOP_SENT, &host->completed_events) ++#define mci_set_stop_is_completed(host) \ ++ test_and_set_bit(EVENT_STOP_COMPLETE, &host->completed_events) ++#define mci_set_stop_error_is_completed(host) \ ++ test_and_set_bit(EVENT_STOP_ERROR, &host->completed_events) ++#define mci_set_dma_error_is_completed(host) \ ++ test_and_set_bit(EVENT_DMA_ERROR, &host->completed_events) ++#define mci_set_card_detect_is_completed(host) \ ++ test_and_set_bit(EVENT_CARD_DETECT, &host->completed_events) ++ ++/* Set bit macros for completed events */ ++#define mci_set_cmd_complete(host) \ ++ set_bit(EVENT_CMD_COMPLETE, &host->completed_events) ++#define mci_set_cmd_error_complete(host) \ ++ set_bit(EVENT_CMD_ERROR, &host->completed_events) ++#define mci_set_data_complete(host) \ ++ set_bit(EVENT_DATA_COMPLETE, &host->completed_events) ++#define mci_set_data_error_complete(host) \ ++ set_bit(EVENT_DATA_ERROR, &host->completed_events) ++#define mci_set_stop_sent_complete(host) \ ++ set_bit(EVENT_STOP_SENT, &host->completed_events) ++#define mci_set_stop_complete(host) \ ++ set_bit(EVENT_STOP_COMPLETE, &host->completed_events) ++#define mci_set_stop_error_complete(host) \ ++ set_bit(EVENT_STOP_ERROR, &host->completed_events) ++#define mci_set_dma_error_complete(host) \ ++ set_bit(EVENT_DMA_ERROR, &host->completed_events) ++#define mci_set_card_detect_complete(host) \ ++ set_bit(EVENT_CARD_DETECT, &host->completed_events) ++ ++/* Set bit macros for pending events */ ++#define mci_set_cmd_pending(host) \ ++ set_bit(EVENT_CMD_COMPLETE, &host->pending_events) ++#define mci_set_cmd_error_pending(host) \ ++ set_bit(EVENT_CMD_ERROR, &host->pending_events) ++#define mci_set_data_pending(host) \ ++ set_bit(EVENT_DATA_COMPLETE, &host->pending_events) ++#define mci_set_data_error_pending(host) \ ++ set_bit(EVENT_DATA_ERROR, &host->pending_events) ++#define mci_set_stop_sent_pending(host) \ ++ set_bit(EVENT_STOP_SENT, &host->pending_events) ++#define mci_set_stop_pending(host) \ ++ set_bit(EVENT_STOP_COMPLETE, &host->pending_events) ++#define mci_set_stop_error_pending(host) \ ++ set_bit(EVENT_STOP_ERROR, &host->pending_events) ++#define mci_set_dma_error_pending(host) \ ++ set_bit(EVENT_DMA_ERROR, &host->pending_events) ++#define mci_set_card_detect_pending(host) \ ++ set_bit(EVENT_CARD_DETECT, &host->pending_events) ++ ++/* Clear bit macros for pending events */ ++#define mci_clear_cmd_pending(host) \ ++ clear_bit(EVENT_CMD_COMPLETE, &host->pending_events) ++#define mci_clear_cmd_error_pending(host) \ ++ clear_bit(EVENT_CMD_ERROR, &host->pending_events) ++#define mci_clear_data_pending(host) \ ++ clear_bit(EVENT_DATA_COMPLETE, &host->pending_events) ++#define mci_clear_data_error_pending(host) \ ++ clear_bit(EVENT_DATA_ERROR, &host->pending_events) ++#define mci_clear_stop_sent_pending(host) \ ++ clear_bit(EVENT_STOP_SENT, &host->pending_events) ++#define mci_clear_stop_pending(host) \ ++ clear_bit(EVENT_STOP_COMPLETE, &host->pending_events) ++#define mci_clear_stop_error_pending(host) \ ++ clear_bit(EVENT_STOP_ERROR, &host->pending_events) ++#define mci_clear_dma_error_pending(host) \ ++ clear_bit(EVENT_DMA_ERROR, &host->pending_events) ++#define mci_clear_card_detect_pending(host) \ ++ clear_bit(EVENT_CARD_DETECT, &host->pending_events) ++ ++ ++#ifdef CONFIG_DEBUG_FS ++#include <linux/debugfs.h> ++ ++#define DBG_REQ_BUF_SIZE (4096 - sizeof(unsigned int)) ++ ++struct req_dbg_data { ++ unsigned int nbytes; ++ char str[DBG_REQ_BUF_SIZE]; ++}; ++ ++static int req_dbg_open(struct inode *inode, struct file *file) ++{ ++ struct atmel_mci *host; ++ struct mmc_request *mrq; ++ struct mmc_command *cmd, *stop; ++ struct mmc_data *data; ++ struct req_dbg_data *priv; ++ char *str; ++ unsigned long n = 0; ++ ++ priv = kzalloc(DBG_REQ_BUF_SIZE, GFP_KERNEL); ++ if (!priv) ++ return -ENOMEM; ++ str = priv->str; ++ ++ mutex_lock(&inode->i_mutex); ++ host = inode->i_private; ++ ++ spin_lock_irq(&host->mmc->lock); ++ mrq = host->mrq; ++ if (mrq) { ++ cmd = mrq->cmd; ++ data = mrq->data; ++ stop = mrq->stop; ++ n = snprintf(str, DBG_REQ_BUF_SIZE, ++ "CMD%u(0x%x) %x %x %x %x %x (err %u)\n", ++ cmd->opcode, cmd->arg, cmd->flags, ++ cmd->resp[0], cmd->resp[1], cmd->resp[2], ++ cmd->resp[3], cmd->error); ++ if (n < DBG_REQ_BUF_SIZE && data) ++ n += snprintf(str + n, DBG_REQ_BUF_SIZE - n, ++ "DATA %u * %u (%u) %x (err %u)\n", ++ data->blocks, data->blksz, ++ data->bytes_xfered, data->flags, ++ data->error); ++ if (n < DBG_REQ_BUF_SIZE && stop) ++ n += snprintf(str + n, DBG_REQ_BUF_SIZE - n, ++ "CMD%u(0x%x) %x %x %x %x %x (err %u)\n", ++ stop->opcode, stop->arg, stop->flags, ++ stop->resp[0], stop->resp[1], ++ stop->resp[2], stop->resp[3], ++ stop->error); ++ } ++ spin_unlock_irq(&host->mmc->lock); ++ mutex_unlock(&inode->i_mutex); ++ ++ priv->nbytes = min(n, DBG_REQ_BUF_SIZE); ++ file->private_data = priv; ++ ++ return 0; ++} ++ ++static ssize_t req_dbg_read(struct file *file, char __user *buf, ++ size_t nbytes, loff_t *ppos) ++{ ++ struct req_dbg_data *priv = file->private_data; ++ ++ return simple_read_from_buffer(buf, nbytes, ppos, ++ priv->str, priv->nbytes); ++} ++ ++static int req_dbg_release(struct inode *inode, struct file *file) ++{ ++ kfree(file->private_data); ++ return 0; ++} ++ ++static const struct file_operations req_dbg_fops = { ++ .owner = THIS_MODULE, ++ .open = req_dbg_open, ++ .llseek = no_llseek, ++ .read = req_dbg_read, ++ .release = req_dbg_release, ++}; ++ ++static int regs_dbg_open(struct inode *inode, struct file *file) ++{ ++ struct atmel_mci *host; ++ unsigned int i; ++ u32 *data; ++ int ret = -ENOMEM; ++ ++ mutex_lock(&inode->i_mutex); ++ host = inode->i_private; ++ data = kmalloc(inode->i_size, GFP_KERNEL); ++ if (!data) ++ goto out; ++ ++ spin_lock_irq(&host->mmc->lock); ++ for (i = 0; i < inode->i_size / 4; i++) ++ data[i] = __raw_readl(host->regs + i * 4); ++ spin_unlock_irq(&host->mmc->lock); ++ ++ file->private_data = data; ++ ret = 0; ++ ++out: ++ mutex_unlock(&inode->i_mutex); ++ ++ return ret; ++} ++ ++static ssize_t regs_dbg_read(struct file *file, char __user *buf, ++ size_t nbytes, loff_t *ppos) ++{ ++ struct inode *inode = file->f_dentry->d_inode; ++ int ret; ++ ++ mutex_lock(&inode->i_mutex); ++ ret = simple_read_from_buffer(buf, nbytes, ppos, ++ file->private_data, ++ file->f_dentry->d_inode->i_size); ++ mutex_unlock(&inode->i_mutex); ++ ++ return ret; ++} ++ ++static int regs_dbg_release(struct inode *inode, struct file *file) ++{ ++ kfree(file->private_data); ++ return 0; ++} ++ ++static const struct file_operations regs_dbg_fops = { ++ .owner = THIS_MODULE, ++ .open = regs_dbg_open, ++ .llseek = generic_file_llseek, ++ .read = regs_dbg_read, ++ .release = regs_dbg_release, ++}; ++ ++static void atmci_init_debugfs(struct atmel_mci *host) ++{ ++ struct mmc_host *mmc; ++ struct dentry *root, *regs; ++ struct resource *res; ++ ++ mmc = host->mmc; ++ root = debugfs_create_dir(mmc_hostname(mmc), NULL); ++ if (IS_ERR(root) || !root) ++ goto err_root; ++ host->debugfs_root = root; ++ ++ regs = debugfs_create_file("regs", 0400, root, host, ®s_dbg_fops); ++ if (!regs) ++ goto err_regs; ++ ++ res = platform_get_resource(host->pdev, IORESOURCE_MEM, 0); ++ regs->d_inode->i_size = res->end - res->start + 1; ++ host->debugfs_regs = regs; ++ ++ host->debugfs_req = debugfs_create_file("req", 0400, root, ++ host, &req_dbg_fops); ++ if (!host->debugfs_req) ++ goto err_req; ++ ++ host->debugfs_pending_events ++ = debugfs_create_u32("pending_events", 0400, root, ++ (u32 *)&host->pending_events); ++ if (!host->debugfs_pending_events) ++ goto err_pending_events; ++ ++ host->debugfs_completed_events ++ = debugfs_create_u32("completed_events", 0400, root, ++ (u32 *)&host->completed_events); ++ if (!host->debugfs_completed_events) ++ goto err_completed_events; ++ ++ return; ++ ++err_completed_events: ++ debugfs_remove(host->debugfs_pending_events); ++err_pending_events: ++ debugfs_remove(host->debugfs_req); ++err_req: ++ debugfs_remove(host->debugfs_regs); ++err_regs: ++ debugfs_remove(host->debugfs_root); ++err_root: ++ host->debugfs_root = NULL; ++ dev_err(&host->pdev->dev, ++ "failed to initialize debugfs for %s\n", ++ mmc_hostname(mmc)); ++} ++ ++static void atmci_cleanup_debugfs(struct atmel_mci *host) ++{ ++ if (host->debugfs_root) { ++ debugfs_remove(host->debugfs_completed_events); ++ debugfs_remove(host->debugfs_pending_events); ++ debugfs_remove(host->debugfs_req); ++ debugfs_remove(host->debugfs_regs); ++ debugfs_remove(host->debugfs_root); ++ host->debugfs_root = NULL; ++ } ++} ++#else ++static inline void atmci_init_debugfs(struct atmel_mci *host) ++{ ++ ++} ++ ++static inline void atmci_cleanup_debugfs(struct atmel_mci *host) ++{ ++ ++} ++#endif /* CONFIG_DEBUG_FS */ ++ ++static inline unsigned int ns_to_clocks(struct atmel_mci *host, ++ unsigned int ns) ++{ ++ return (ns * (host->bus_hz / 1000000) + 999) / 1000; ++} ++ ++static void atmci_set_timeout(struct atmel_mci *host, ++ struct mmc_data *data) ++{ ++ static unsigned dtomul_to_shift[] = { ++ 0, 4, 7, 8, 10, 12, 16, 20 ++ }; ++ unsigned timeout; ++ unsigned dtocyc, dtomul; ++ ++ timeout = ns_to_clocks(host, data->timeout_ns) + data->timeout_clks; ++ ++ for (dtomul = 0; dtomul < 8; dtomul++) { ++ unsigned shift = dtomul_to_shift[dtomul]; ++ dtocyc = (timeout + (1 << shift) - 1) >> shift; ++ if (dtocyc < 15) ++ break; ++ } ++ ++ if (dtomul >= 8) { ++ dtomul = 7; ++ dtocyc = 15; ++ } ++ ++ pr_debug("%s: setting timeout to %u cycles\n", ++ mmc_hostname(host->mmc), ++ dtocyc << dtomul_to_shift[dtomul]); ++ mci_writel(host, DTOR, (MCI_BF(DTOMUL, dtomul) ++ | MCI_BF(DTOCYC, dtocyc))); ++} ++ ++/* ++ * Return mask with interrupt flags to be handled for this command. ++ */ ++static u32 atmci_prepare_command(struct mmc_host *mmc, ++ struct mmc_command *cmd, ++ u32 *cmd_flags) ++{ ++ u32 cmdr; ++ u32 iflags; ++ ++ cmd->error = MMC_ERR_NONE; ++ ++ cmdr = 0; ++ BUG_ON(MCI_BFEXT(CMDNB, cmdr) != 0); ++ cmdr = MCI_BFINS(CMDNB, cmd->opcode, cmdr); ++ ++ if (cmd->flags & MMC_RSP_PRESENT) { ++ if (cmd->flags & MMC_RSP_136) ++ cmdr |= MCI_BF(RSPTYP, MCI_RSPTYP_136_BIT); ++ else ++ cmdr |= MCI_BF(RSPTYP, MCI_RSPTYP_48_BIT); ++ } ++ ++ /* ++ * This should really be MAXLAT_5 for CMD2 and ACMD41, but ++ * it's too difficult to determine whether this is an ACMD or ++ * not. Better make it 64. ++ */ ++ cmdr |= MCI_BIT(MAXLAT); ++ ++ if (mmc->ios.bus_mode == MMC_BUSMODE_OPENDRAIN) ++ cmdr |= MCI_BIT(OPDCMD); ++ ++ iflags = MCI_BIT(CMDRDY) | MCI_CMD_ERROR_FLAGS; ++ if (!(cmd->flags & MMC_RSP_CRC)) ++ iflags &= ~MCI_BIT(RCRCE); ++ ++ pr_debug("%s: cmd: op %02x arg %08x flags %08x, cmdflags %08lx\n", ++ mmc_hostname(mmc), cmd->opcode, cmd->arg, cmd->flags, ++ (unsigned long)cmdr); ++ ++ *cmd_flags = cmdr; ++ return iflags; ++} ++ ++static void atmci_start_command(struct atmel_mci *host, ++ struct mmc_command *cmd, ++ u32 cmd_flags) ++{ ++ WARN_ON(host->cmd); ++ host->cmd = cmd; ++ ++ mci_writel(host, ARGR, cmd->arg); ++ mci_writel(host, CMDR, cmd_flags); ++ ++ if (cmd->data) ++ dma_start_request(host->dma.req.req.dmac, ++ host->dma.req.req.channel); ++} ++ ++/* ++ * Returns a mask of flags to be set in the command register when the ++ * command to start the transfer is to be sent. ++ */ ++static u32 atmci_prepare_data(struct mmc_host *mmc, struct mmc_data *data) ++{ ++ struct atmel_mci *host = mmc_priv(mmc); ++ u32 cmd_flags; ++ ++ WARN_ON(host->data); ++ host->data = data; ++ ++ atmci_set_timeout(host, data); ++ mci_writel(host, BLKR, (MCI_BF(BCNT, data->blocks) ++ | MCI_BF(BLKLEN, data->blksz))); ++ host->dma.req.block_size = data->blksz; ++ host->dma.req.nr_blocks = data->blocks; ++ ++ cmd_flags = MCI_BF(TRCMD, MCI_TRCMD_START_TRANS); ++ if (data->flags & MMC_DATA_STREAM) ++ cmd_flags |= MCI_BF(TRTYP, MCI_TRTYP_STREAM); ++ else if (data->blocks > 1) ++ cmd_flags |= MCI_BF(TRTYP, MCI_TRTYP_MULTI_BLOCK); ++ else ++ cmd_flags |= MCI_BF(TRTYP, MCI_TRTYP_BLOCK); ++ ++ if (data->flags & MMC_DATA_READ) { ++ cmd_flags |= MCI_BIT(TRDIR); ++ host->dma.req.nr_sg ++ = dma_map_sg(&host->pdev->dev, data->sg, ++ data->sg_len, DMA_FROM_DEVICE); ++ host->dma.req.periph_id = host->dma.rx_periph_id; ++ host->dma.req.direction = DMA_DIR_PERIPH_TO_MEM; ++ host->dma.req.data_reg = host->mapbase + MCI_RDR; ++ } else { ++ host->dma.req.nr_sg ++ = dma_map_sg(&host->pdev->dev, data->sg, ++ data->sg_len, DMA_TO_DEVICE); ++ host->dma.req.periph_id = host->dma.tx_periph_id; ++ host->dma.req.direction = DMA_DIR_MEM_TO_PERIPH; ++ host->dma.req.data_reg = host->mapbase + MCI_TDR; ++ } ++ host->dma.req.sg = data->sg; ++ ++ dma_prepare_request_sg(host->dma.req.req.dmac, &host->dma.req); ++ ++ return cmd_flags; ++} ++ ++static void atmci_request(struct mmc_host *mmc, struct mmc_request *mrq) ++{ ++ struct atmel_mci *host = mmc_priv(mmc); ++ struct mmc_data *data = mrq->data; ++ u32 iflags; ++ u32 cmdflags = 0; ++ ++ iflags = mci_readl(host, IMR); ++ if (iflags) ++ printk("WARNING: IMR=0x%08x\n", mci_readl(host, IMR)); ++ ++ WARN_ON(host->mrq != NULL); ++ host->mrq = mrq; ++ host->pending_events = 0; ++ host->completed_events = 0; ++ ++ iflags = atmci_prepare_command(mmc, mrq->cmd, &cmdflags); ++ ++ if (mrq->stop) { ++ BUG_ON(!data); ++ ++ host->stop_iflags = atmci_prepare_command(mmc, mrq->stop, ++ &host->stop_cmdr); ++ host->stop_cmdr |= MCI_BF(TRCMD, MCI_TRCMD_STOP_TRANS); ++ if (!(data->flags & MMC_DATA_WRITE)) ++ host->stop_cmdr |= MCI_BIT(TRDIR); ++ if (data->flags & MMC_DATA_STREAM) ++ host->stop_cmdr |= MCI_BF(TRTYP, MCI_TRTYP_STREAM); ++ else ++ host->stop_cmdr |= MCI_BF(TRTYP, MCI_TRTYP_MULTI_BLOCK); ++ } ++ if (data) { ++ cmdflags |= atmci_prepare_data(mmc, data); ++ iflags |= MCI_DATA_ERROR_FLAGS; ++ } ++ ++ atmci_start_command(host, mrq->cmd, cmdflags); ++ mci_writel(host, IER, iflags); ++} ++ ++static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) ++{ ++ struct atmel_mci *host = mmc_priv(mmc); ++ ++ if (ios->clock) { ++ u32 clkdiv; ++ ++ clkdiv = host->bus_hz / (2 * ios->clock) - 1; ++ if (clkdiv > 255) ++ clkdiv = 255; ++ mci_writel(host, MR, (clkdiv ++ | MCI_BIT(WRPROOF) ++ | MCI_BIT(RDPROOF))); ++ } ++ ++ switch (ios->bus_width) { ++ case MMC_BUS_WIDTH_1: ++ mci_writel(host, SDCR, 0); ++ break; ++ case MMC_BUS_WIDTH_4: ++ mci_writel(host, SDCR, MCI_BIT(SDCBUS)); ++ break; ++ } ++ ++ switch (ios->power_mode) { ++ case MMC_POWER_OFF: ++ mci_writel(host, CR, MCI_BIT(MCIDIS)); ++ break; ++ case MMC_POWER_UP: ++ mci_writel(host, CR, MCI_BIT(SWRST)); ++ break; ++ case MMC_POWER_ON: ++ mci_writel(host, CR, MCI_BIT(MCIEN)); ++ break; ++ } ++} ++ ++static int atmci_get_ro(struct mmc_host *mmc) ++{ ++ int read_only = 0; ++ struct atmel_mci *host = mmc_priv(mmc); ++ ++ if (host->wp_pin >= 0) { ++ read_only = gpio_get_value(host->wp_pin); ++ pr_debug("%s: card is %s\n", mmc_hostname(mmc), ++ read_only ? "read-only" : "read-write"); ++ } else { ++ pr_debug("%s: no pin for checking read-only switch." ++ " Assuming write-enable.\n", mmc_hostname(mmc)); ++ } ++ ++ return read_only; ++} ++ ++static struct mmc_host_ops atmci_ops = { ++ .request = atmci_request, ++ .set_ios = atmci_set_ios, ++ .get_ro = atmci_get_ro, ++}; ++ ++static void atmci_request_end(struct mmc_host *mmc, struct mmc_request *mrq) ++{ ++ struct atmel_mci *host = mmc_priv(mmc); ++ ++ WARN_ON(host->cmd || host->data); ++ host->mrq = NULL; ++ ++ mmc_request_done(mmc, mrq); ++} ++ ++static void send_stop_cmd(struct mmc_host *mmc, struct mmc_data *data, ++ u32 flags) ++{ ++ struct atmel_mci *host = mmc_priv(mmc); ++ ++ atmci_start_command(host, data->stop, host->stop_cmdr | flags); ++ mci_writel(host, IER, host->stop_iflags); ++} ++ ++static void atmci_data_complete(struct atmel_mci *host, struct mmc_data *data) ++{ ++ host->data = NULL; ++ dma_unmap_sg(&host->pdev->dev, data->sg, host->dma.req.nr_sg, ++ ((data->flags & MMC_DATA_WRITE) ++ ? DMA_TO_DEVICE : DMA_FROM_DEVICE)); ++ ++ /* ++ * Data might complete before command for very short transfers ++ * (like READ_SCR) ++ */ ++ if (mci_cmd_is_complete(host) ++ && (!data->stop || mci_stop_is_complete(host))) ++ atmci_request_end(host->mmc, data->mrq); ++} ++ ++static void atmci_command_error(struct mmc_host *mmc, ++ struct mmc_command *cmd, ++ u32 status) ++{ ++ pr_debug("%s: command error: status=0x%08x\n", ++ mmc_hostname(mmc), status); ++ ++ if (status & MCI_BIT(RTOE)) ++ cmd->error = MMC_ERR_TIMEOUT; ++ else if (status & MCI_BIT(RCRCE)) ++ cmd->error = MMC_ERR_BADCRC; ++ else ++ cmd->error = MMC_ERR_FAILED; ++} ++ ++static void atmci_tasklet_func(unsigned long priv) ++{ ++ struct mmc_host *mmc = (struct mmc_host *)priv; ++ struct atmel_mci *host = mmc_priv(mmc); ++ struct mmc_request *mrq = host->mrq; ++ struct mmc_data *data = host->data; ++ ++ pr_debug("atmci_tasklet: pending/completed/mask %lx/%lx/%x\n", ++ host->pending_events, host->completed_events, ++ mci_readl(host, IMR)); ++ ++ if (mci_clear_cmd_error_is_pending(host)) { ++ struct mmc_command *cmd; ++ ++ mci_set_cmd_error_complete(host); ++ mci_clear_cmd_pending(host); ++ cmd = host->mrq->cmd; ++ ++ if (cmd->data) { ++ dma_stop_request(host->dma.req.req.dmac, ++ host->dma.req.req.channel); ++ host->data = NULL; ++ } ++ ++ atmci_command_error(mmc, cmd, host->error_status); ++ atmci_request_end(mmc, cmd->mrq); ++ } ++ if (mci_clear_stop_error_is_pending(host)) { ++ mci_set_stop_error_complete(host); ++ mci_clear_stop_pending(host); ++ atmci_command_error(mmc, host->mrq->stop, ++ host->error_status); ++ if (!host->data) ++ atmci_request_end(mmc, host->mrq); ++ } ++ if (mci_clear_cmd_is_pending(host)) { ++ mci_set_cmd_complete(host); ++ if (!mrq->data || mci_data_is_complete(host) ++ || mci_data_error_is_complete(host)) ++ atmci_request_end(mmc, mrq); ++ } ++ if (mci_clear_stop_is_pending(host)) { ++ mci_set_stop_complete(host); ++ if (mci_data_is_complete(host) ++ || mci_data_error_is_complete(host)) ++ atmci_request_end(mmc, mrq); ++ } ++ if (mci_clear_dma_error_is_pending(host)) { ++ mci_set_dma_error_complete(host); ++ mci_clear_data_pending(host); ++ ++ /* DMA controller got bus error => invalid address */ ++ data->error = MMC_ERR_INVALID; ++ ++ printk(KERN_DEBUG "%s: dma error after %u bytes xfered\n", ++ mmc_hostname(mmc), host->data->bytes_xfered); ++ ++ if (data->stop ++ && !mci_set_stop_sent_is_completed(host)) ++ /* TODO: Check if card is still present */ ++ send_stop_cmd(host->mmc, data, 0); ++ ++ atmci_data_complete(host, data); ++ } ++ if (mci_clear_data_error_is_pending(host)) { ++ u32 status = host->error_status; ++ ++ mci_set_data_error_complete(host); ++ mci_clear_data_pending(host); ++ ++ dma_stop_request(host->dma.req.req.dmac, ++ host->dma.req.req.channel); ++ ++ printk(KERN_DEBUG "%s: data error: status=0x%08x\n", ++ mmc_hostname(host->mmc), status); ++ ++ if (status & MCI_BIT(DCRCE)) { ++ printk(KERN_DEBUG "%s: Data CRC error\n", ++ mmc_hostname(host->mmc)); ++ data->error = MMC_ERR_BADCRC; ++ } else if (status & MCI_BIT(DTOE)) { ++ printk(KERN_DEBUG "%s: Data Timeout error\n", ++ mmc_hostname(host->mmc)); ++ data->error = MMC_ERR_TIMEOUT; ++ } else { ++ printk(KERN_DEBUG "%s: Data FIFO error\n", ++ mmc_hostname(host->mmc)); ++ data->error = MMC_ERR_FIFO; ++ } ++ printk(KERN_DEBUG "%s: Bytes xfered: %u\n", ++ mmc_hostname(host->mmc), data->bytes_xfered); ++ ++ if (data->stop ++ && !mci_set_stop_sent_is_completed(host)) ++ /* TODO: Check if card is still present */ ++ send_stop_cmd(host->mmc, data, 0); ++ ++ atmci_data_complete(host, data); ++ } ++ if (mci_clear_data_is_pending(host)) { ++ mci_set_data_complete(host); ++ data->bytes_xfered = data->blocks * data->blksz; ++ atmci_data_complete(host, data); ++ } ++ if (mci_clear_card_detect_is_pending(host)) { ++ /* Reset controller if card is gone */ ++ if (!host->present) { ++ mci_writel(host, CR, MCI_BIT(SWRST)); ++ mci_writel(host, IDR, ~0UL); ++ mci_writel(host, CR, MCI_BIT(MCIEN)); ++ } ++ ++ /* Clean up queue if present */ ++ if (mrq) { ++ if (!mci_cmd_is_complete(host) ++ && !mci_cmd_error_is_complete(host)) { ++ mrq->cmd->error = MMC_ERR_TIMEOUT; ++ } ++ if (mrq->data && !mci_data_is_complete(host) ++ && !mci_data_error_is_complete(host)) { ++ dma_stop_request(host->dma.req.req.dmac, ++ host->dma.req.req.channel); ++ host->data->error = MMC_ERR_TIMEOUT; ++ atmci_data_complete(host, data); ++ } ++ if (mrq->stop && !mci_stop_is_complete(host) ++ && !mci_stop_error_is_complete(host)) { ++ mrq->stop->error = MMC_ERR_TIMEOUT; ++ } ++ ++ host->cmd = NULL; ++ atmci_request_end(mmc, mrq); ++ } ++ mmc_detect_change(host->mmc, msecs_to_jiffies(100)); ++ } ++} ++ ++static void atmci_cmd_interrupt(struct mmc_host *mmc, u32 status) ++{ ++ struct atmel_mci *host = mmc_priv(mmc); ++ struct mmc_command *cmd = host->cmd; ++ ++ /* ++ * Read the response now so that we're free to send a new ++ * command immediately. ++ */ ++ cmd->resp[0] = mci_readl(host, RSPR); ++ cmd->resp[1] = mci_readl(host, RSPR); ++ cmd->resp[2] = mci_readl(host, RSPR); ++ cmd->resp[3] = mci_readl(host, RSPR); ++ ++ mci_writel(host, IDR, MCI_BIT(CMDRDY) | MCI_CMD_ERROR_FLAGS); ++ host->cmd = NULL; ++ ++ if (mci_stop_sent_is_complete(host)) ++ mci_set_stop_pending(host); ++ else ++ mci_set_cmd_pending(host); ++ ++ tasklet_schedule(&host->tasklet); ++} ++ ++static void atmci_xfer_complete(struct dma_request *_req) ++{ ++ struct dma_request_sg *req = to_dma_request_sg(_req); ++ struct atmel_mci_dma *dma; ++ struct atmel_mci *host; ++ struct mmc_data *data; ++ ++ dma = container_of(req, struct atmel_mci_dma, req); ++ host = container_of(dma, struct atmel_mci, dma); ++ data = host->data; ++ ++ if (data->stop && !mci_set_stop_sent_is_completed(host)) ++ send_stop_cmd(host->mmc, data, 0); ++ ++ if (data->flags & MMC_DATA_READ) { ++ mci_writel(host, IDR, MCI_DATA_ERROR_FLAGS); ++ mci_set_data_pending(host); ++ tasklet_schedule(&host->tasklet); ++ } else { ++ /* ++ * For the WRITE case, wait for NOTBUSY. This function ++ * is called when everything has been written to the ++ * controller, not when the card is done programming. ++ */ ++ mci_writel(host, IER, MCI_BIT(NOTBUSY)); ++ } ++} ++ ++static void atmci_dma_error(struct dma_request *_req) ++{ ++ struct dma_request_sg *req = to_dma_request_sg(_req); ++ struct atmel_mci_dma *dma; ++ struct atmel_mci *host; ++ ++ dma = container_of(req, struct atmel_mci_dma, req); ++ host = container_of(dma, struct atmel_mci, dma); ++ ++ mci_writel(host, IDR, (MCI_BIT(NOTBUSY) ++ | MCI_DATA_ERROR_FLAGS)); ++ ++ mci_set_dma_error_pending(host); ++ tasklet_schedule(&host->tasklet); ++} ++ ++static irqreturn_t atmci_interrupt(int irq, void *dev_id) ++{ ++ struct mmc_host *mmc = dev_id; ++ struct atmel_mci *host = mmc_priv(mmc); ++ u32 status, mask, pending; ++ ++ spin_lock(&mmc->lock); ++ ++ status = mci_readl(host, SR); ++ mask = mci_readl(host, IMR); ++ pending = status & mask; ++ ++ do { ++ if (pending & MCI_CMD_ERROR_FLAGS) { ++ mci_writel(host, IDR, (MCI_BIT(CMDRDY) ++ | MCI_BIT(NOTBUSY) ++ | MCI_CMD_ERROR_FLAGS ++ | MCI_DATA_ERROR_FLAGS)); ++ host->error_status = status; ++ host->cmd = NULL; ++ if (mci_stop_sent_is_complete(host)) ++ mci_set_stop_error_pending(host); ++ else ++ mci_set_cmd_error_pending(host); ++ tasklet_schedule(&host->tasklet); ++ break; ++ } ++ if (pending & MCI_DATA_ERROR_FLAGS) { ++ mci_writel(host, IDR, (MCI_BIT(NOTBUSY) ++ | MCI_DATA_ERROR_FLAGS)); ++ host->error_status = status; ++ mci_set_data_error_pending(host); ++ tasklet_schedule(&host->tasklet); ++ break; ++ } ++ if (pending & MCI_BIT(CMDRDY)) ++ atmci_cmd_interrupt(mmc, status); ++ if (pending & MCI_BIT(NOTBUSY)) { ++ mci_writel(host, IDR, (MCI_BIT(NOTBUSY) ++ | MCI_DATA_ERROR_FLAGS)); ++ mci_set_data_pending(host); ++ tasklet_schedule(&host->tasklet); ++ } ++ ++ status = mci_readl(host, SR); ++ mask = mci_readl(host, IMR); ++ pending = status & mask; ++ } while (pending); ++ ++ spin_unlock(&mmc->lock); ++ ++ return IRQ_HANDLED; ++} ++ ++static irqreturn_t atmci_detect_change(int irq, void *dev_id) ++{ ++ struct mmc_host *mmc = dev_id; ++ struct atmel_mci *host = mmc_priv(mmc); ++ ++ int present = !gpio_get_value(irq_to_gpio(irq)); ++ ++ if (present != host->present) { ++ pr_debug("%s: card %s\n", mmc_hostname(host->mmc), ++ present ? "inserted" : "removed"); ++ host->present = present; ++ mci_set_card_detect_pending(host); ++ tasklet_schedule(&host->tasklet); ++ } ++ return IRQ_HANDLED; ++} ++ ++static int __devinit atmci_probe(struct platform_device *pdev) ++{ ++ struct mci_platform_data *board; ++ struct atmel_mci *host; ++ struct mmc_host *mmc; ++ struct resource *regs; ++ int irq; ++ int ret; ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) ++ return -ENXIO; ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) ++ return irq; ++ ++ board = pdev->dev.platform_data; ++ ++ mmc = mmc_alloc_host(sizeof(struct atmel_mci), &pdev->dev); ++ if (!mmc) ++ return -ENOMEM; ++ ++ host = mmc_priv(mmc); ++ host->pdev = pdev; ++ host->mmc = mmc; ++ if (board) { ++ host->detect_pin = board->detect_pin; ++ host->wp_pin = board->wp_pin; ++ } else { ++ host->detect_pin = -1; ++ host->detect_pin = -1; ++ } ++ ++ host->mck = clk_get(&pdev->dev, "mci_clk"); ++ if (IS_ERR(host->mck)) { ++ ret = PTR_ERR(host->mck); ++ goto out_free_host; ++ } ++ clk_enable(host->mck); ++ ++ ret = -ENOMEM; ++ host->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!host->regs) ++ goto out_disable_clk; ++ ++ host->bus_hz = clk_get_rate(host->mck); ++ host->mapbase = regs->start; ++ ++ mmc->ops = &atmci_ops; ++ mmc->f_min = (host->bus_hz + 511) / 512; ++ mmc->f_max = min((unsigned int)(host->bus_hz / 2), fmax); ++ mmc->ocr_avail = 0x00100000; ++ mmc->caps |= MMC_CAP_4_BIT_DATA; ++ ++ tasklet_init(&host->tasklet, atmci_tasklet_func, (unsigned long)mmc); ++ ++ ret = request_irq(irq, atmci_interrupt, 0, "mmci", mmc); ++ if (ret) ++ goto out_unmap; ++ ++ /* Assume card is present if we don't have a detect pin */ ++ host->present = 1; ++ if (host->detect_pin >= 0) { ++ if (gpio_request(host->detect_pin, "mmc_detect")) { ++ printk(KERN_WARNING "%s: no detect pin available\n", ++ mmc_hostname(host->mmc)); ++ host->detect_pin = -1; ++ } else { ++ host->present = !gpio_get_value(host->detect_pin); ++ } ++ } ++ if (host->wp_pin >= 0) { ++ if (gpio_request(host->wp_pin, "mmc_wp")) { ++ printk(KERN_WARNING "%s: no WP pin available\n", ++ mmc_hostname(host->mmc)); ++ host->wp_pin = -1; ++ } ++ } ++ ++ /* TODO: Get this information from platform data */ ++ ret = -ENOMEM; ++ host->dma.req.req.dmac = find_dma_controller(0); ++ if (!host->dma.req.req.dmac) { ++ printk(KERN_ERR ++ "mmci: No DMA controller available, aborting\n"); ++ goto out_free_irq; ++ } ++ ret = dma_alloc_channel(host->dma.req.req.dmac); ++ if (ret < 0) { ++ printk(KERN_ERR ++ "mmci: Unable to allocate DMA channel, aborting\n"); ++ goto out_free_irq; ++ } ++ host->dma.req.req.channel = ret; ++ host->dma.req.width = DMA_WIDTH_32BIT; ++ host->dma.req.req.xfer_complete = atmci_xfer_complete; ++ host->dma.req.req.block_complete = NULL; // atmci_block_complete; ++ host->dma.req.req.error = atmci_dma_error; ++ host->dma.rx_periph_id = 0; ++ host->dma.tx_periph_id = 1; ++ ++ mci_writel(host, CR, MCI_BIT(SWRST)); ++ mci_writel(host, IDR, ~0UL); ++ mci_writel(host, CR, MCI_BIT(MCIEN)); ++ ++ platform_set_drvdata(pdev, host); ++ ++ mmc_add_host(mmc); ++ ++ if (host->detect_pin >= 0) { ++ ret = request_irq(gpio_to_irq(host->detect_pin), ++ atmci_detect_change, ++ IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, ++ DRIVER_NAME, mmc); ++ if (ret) { ++ printk(KERN_ERR ++ "%s: could not request IRQ %d for detect pin\n", ++ mmc_hostname(mmc), ++ gpio_to_irq(host->detect_pin)); ++ gpio_free(host->detect_pin); ++ host->detect_pin = -1; ++ } ++ } ++ ++ printk(KERN_INFO "%s: Atmel MCI controller at 0x%08lx irq %d\n", ++ mmc_hostname(mmc), host->mapbase, irq); ++ ++ atmci_init_debugfs(host); ++ ++ return 0; ++ ++out_free_irq: ++ if (host->detect_pin >= 0) ++ gpio_free(host->detect_pin); ++ if (host->wp_pin >= 0) ++ gpio_free(host->wp_pin); ++ free_irq(irq, mmc); ++out_unmap: ++ iounmap(host->regs); ++out_disable_clk: ++ clk_disable(host->mck); ++ clk_put(host->mck); ++out_free_host: ++ mmc_free_host(mmc); ++ return ret; ++} ++ ++static int __devexit atmci_remove(struct platform_device *pdev) ++{ ++ struct atmel_mci *host = platform_get_drvdata(pdev); ++ ++ platform_set_drvdata(pdev, NULL); ++ ++ if (host) { ++ atmci_cleanup_debugfs(host); ++ ++ if (host->detect_pin >= 0) { ++ free_irq(gpio_to_irq(host->detect_pin), host->mmc); ++ cancel_delayed_work(&host->mmc->detect); ++ gpio_free(host->detect_pin); ++ } ++ ++ mmc_remove_host(host->mmc); ++ ++ mci_writel(host, IDR, ~0UL); ++ mci_writel(host, CR, MCI_BIT(MCIDIS)); ++ mci_readl(host, SR); ++ ++ dma_release_channel(host->dma.req.req.dmac, ++ host->dma.req.req.channel); ++ ++ if (host->wp_pin >= 0) ++ gpio_free(host->wp_pin); ++ ++ free_irq(platform_get_irq(pdev, 0), host->mmc); ++ iounmap(host->regs); ++ ++ clk_disable(host->mck); ++ clk_put(host->mck); ++ ++ mmc_free_host(host->mmc); ++ } ++ return 0; ++} ++ ++static struct platform_driver atmci_driver = { ++ .probe = atmci_probe, ++ .remove = __devexit_p(atmci_remove), ++ .driver = { ++ .name = DRIVER_NAME, ++ }, ++}; ++ ++static int __init atmci_init(void) ++{ ++ return platform_driver_register(&atmci_driver); ++} ++ ++static void __exit atmci_exit(void) ++{ ++ platform_driver_unregister(&atmci_driver); ++} ++ ++module_init(atmci_init); ++module_exit(atmci_exit); ++ ++MODULE_DESCRIPTION("Atmel Multimedia Card Interface driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/mmc/host/atmel-mci.h b/drivers/mmc/host/atmel-mci.h +new file mode 100644 +index 0000000..60d15c4 +--- /dev/null ++++ b/drivers/mmc/host/atmel-mci.h +@@ -0,0 +1,192 @@ ++/* ++ * Atmel MultiMedia Card Interface driver ++ * ++ * Copyright (C) 2004-2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#ifndef __DRIVERS_MMC_ATMEL_MCI_H__ ++#define __DRIVERS_MMC_ATMEL_MCI_H__ ++ ++/* MCI register offsets */ ++#define MCI_CR 0x0000 ++#define MCI_MR 0x0004 ++#define MCI_DTOR 0x0008 ++#define MCI_SDCR 0x000c ++#define MCI_ARGR 0x0010 ++#define MCI_CMDR 0x0014 ++#define MCI_BLKR 0x0018 ++#define MCI_RSPR 0x0020 ++#define MCI_RSPR1 0x0024 ++#define MCI_RSPR2 0x0028 ++#define MCI_RSPR3 0x002c ++#define MCI_RDR 0x0030 ++#define MCI_TDR 0x0034 ++#define MCI_SR 0x0040 ++#define MCI_IER 0x0044 ++#define MCI_IDR 0x0048 ++#define MCI_IMR 0x004c ++ ++/* Bitfields in CR */ ++#define MCI_MCIEN_OFFSET 0 ++#define MCI_MCIEN_SIZE 1 ++#define MCI_MCIDIS_OFFSET 1 ++#define MCI_MCIDIS_SIZE 1 ++#define MCI_PWSEN_OFFSET 2 ++#define MCI_PWSEN_SIZE 1 ++#define MCI_PWSDIS_OFFSET 3 ++#define MCI_PWSDIS_SIZE 1 ++#define MCI_SWRST_OFFSET 7 ++#define MCI_SWRST_SIZE 1 ++ ++/* Bitfields in MR */ ++#define MCI_CLKDIV_OFFSET 0 ++#define MCI_CLKDIV_SIZE 8 ++#define MCI_PWSDIV_OFFSET 8 ++#define MCI_PWSDIV_SIZE 3 ++#define MCI_RDPROOF_OFFSET 11 ++#define MCI_RDPROOF_SIZE 1 ++#define MCI_WRPROOF_OFFSET 12 ++#define MCI_WRPROOF_SIZE 1 ++#define MCI_DMAPADV_OFFSET 14 ++#define MCI_DMAPADV_SIZE 1 ++#define MCI_BLKLEN_OFFSET 16 ++#define MCI_BLKLEN_SIZE 16 ++ ++/* Bitfields in DTOR */ ++#define MCI_DTOCYC_OFFSET 0 ++#define MCI_DTOCYC_SIZE 4 ++#define MCI_DTOMUL_OFFSET 4 ++#define MCI_DTOMUL_SIZE 3 ++ ++/* Bitfields in SDCR */ ++#define MCI_SDCSEL_OFFSET 0 ++#define MCI_SDCSEL_SIZE 4 ++#define MCI_SDCBUS_OFFSET 7 ++#define MCI_SDCBUS_SIZE 1 ++ ++/* Bitfields in ARGR */ ++#define MCI_ARG_OFFSET 0 ++#define MCI_ARG_SIZE 32 ++ ++/* Bitfields in CMDR */ ++#define MCI_CMDNB_OFFSET 0 ++#define MCI_CMDNB_SIZE 6 ++#define MCI_RSPTYP_OFFSET 6 ++#define MCI_RSPTYP_SIZE 2 ++#define MCI_SPCMD_OFFSET 8 ++#define MCI_SPCMD_SIZE 3 ++#define MCI_OPDCMD_OFFSET 11 ++#define MCI_OPDCMD_SIZE 1 ++#define MCI_MAXLAT_OFFSET 12 ++#define MCI_MAXLAT_SIZE 1 ++#define MCI_TRCMD_OFFSET 16 ++#define MCI_TRCMD_SIZE 2 ++#define MCI_TRDIR_OFFSET 18 ++#define MCI_TRDIR_SIZE 1 ++#define MCI_TRTYP_OFFSET 19 ++#define MCI_TRTYP_SIZE 2 ++ ++/* Bitfields in BLKR */ ++#define MCI_BCNT_OFFSET 0 ++#define MCI_BCNT_SIZE 16 ++ ++/* Bitfields in RSPRn */ ++#define MCI_RSP_OFFSET 0 ++#define MCI_RSP_SIZE 32 ++ ++/* Bitfields in SR/IER/IDR/IMR */ ++#define MCI_CMDRDY_OFFSET 0 ++#define MCI_CMDRDY_SIZE 1 ++#define MCI_RXRDY_OFFSET 1 ++#define MCI_RXRDY_SIZE 1 ++#define MCI_TXRDY_OFFSET 2 ++#define MCI_TXRDY_SIZE 1 ++#define MCI_BLKE_OFFSET 3 ++#define MCI_BLKE_SIZE 1 ++#define MCI_DTIP_OFFSET 4 ++#define MCI_DTIP_SIZE 1 ++#define MCI_NOTBUSY_OFFSET 5 ++#define MCI_NOTBUSY_SIZE 1 ++#define MCI_ENDRX_OFFSET 6 ++#define MCI_ENDRX_SIZE 1 ++#define MCI_ENDTX_OFFSET 7 ++#define MCI_ENDTX_SIZE 1 ++#define MCI_RXBUFF_OFFSET 14 ++#define MCI_RXBUFF_SIZE 1 ++#define MCI_TXBUFE_OFFSET 15 ++#define MCI_TXBUFE_SIZE 1 ++#define MCI_RINDE_OFFSET 16 ++#define MCI_RINDE_SIZE 1 ++#define MCI_RDIRE_OFFSET 17 ++#define MCI_RDIRE_SIZE 1 ++#define MCI_RCRCE_OFFSET 18 ++#define MCI_RCRCE_SIZE 1 ++#define MCI_RENDE_OFFSET 19 ++#define MCI_RENDE_SIZE 1 ++#define MCI_RTOE_OFFSET 20 ++#define MCI_RTOE_SIZE 1 ++#define MCI_DCRCE_OFFSET 21 ++#define MCI_DCRCE_SIZE 1 ++#define MCI_DTOE_OFFSET 22 ++#define MCI_DTOE_SIZE 1 ++#define MCI_OVRE_OFFSET 30 ++#define MCI_OVRE_SIZE 1 ++#define MCI_UNRE_OFFSET 31 ++#define MCI_UNRE_SIZE 1 ++ ++/* Constants for DTOMUL */ ++#define MCI_DTOMUL_1_CYCLE 0 ++#define MCI_DTOMUL_16_CYCLES 1 ++#define MCI_DTOMUL_128_CYCLES 2 ++#define MCI_DTOMUL_256_CYCLES 3 ++#define MCI_DTOMUL_1024_CYCLES 4 ++#define MCI_DTOMUL_4096_CYCLES 5 ++#define MCI_DTOMUL_65536_CYCLES 6 ++#define MCI_DTOMUL_1048576_CYCLES 7 ++ ++/* Constants for RSPTYP */ ++#define MCI_RSPTYP_NO_RESP 0 ++#define MCI_RSPTYP_48_BIT 1 ++#define MCI_RSPTYP_136_BIT 2 ++ ++/* Constants for SPCMD */ ++#define MCI_SPCMD_NO_SPEC_CMD 0 ++#define MCI_SPCMD_INIT_CMD 1 ++#define MCI_SPCMD_SYNC_CMD 2 ++#define MCI_SPCMD_INT_CMD 4 ++#define MCI_SPCMD_INT_RESP 5 ++ ++/* Constants for TRCMD */ ++#define MCI_TRCMD_NO_TRANS 0 ++#define MCI_TRCMD_START_TRANS 1 ++#define MCI_TRCMD_STOP_TRANS 2 ++ ++/* Constants for TRTYP */ ++#define MCI_TRTYP_BLOCK 0 ++#define MCI_TRTYP_MULTI_BLOCK 1 ++#define MCI_TRTYP_STREAM 2 ++ ++/* Bit manipulation macros */ ++#define MCI_BIT(name) \ ++ (1 << MCI_##name##_OFFSET) ++#define MCI_BF(name,value) \ ++ (((value) & ((1 << MCI_##name##_SIZE) - 1)) \ ++ << MCI_##name##_OFFSET) ++#define MCI_BFEXT(name,value) \ ++ (((value) >> MCI_##name##_OFFSET) \ ++ & ((1 << MCI_##name##_SIZE) - 1)) ++#define MCI_BFINS(name,value,old) \ ++ (((old) & ~(((1 << MCI_##name##_SIZE) - 1) \ ++ << MCI_##name##_OFFSET)) \ ++ | MCI_BF(name,value)) ++ ++/* Register access macros */ ++#define mci_readl(port,reg) \ ++ __raw_readl((port)->regs + MCI_##reg) ++#define mci_writel(port,reg,value) \ ++ __raw_writel((value), (port)->regs + MCI_##reg) ++ ++#endif /* __DRIVERS_MMC_ATMEL_MCI_H__ */ +diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c +index 2f19fa7..94304ca 100644 +--- a/drivers/mtd/chips/cfi_cmdset_0001.c ++++ b/drivers/mtd/chips/cfi_cmdset_0001.c +@@ -50,6 +50,7 @@ + #define I82802AC 0x00ac + #define MANUFACTURER_ST 0x0020 + #define M50LPW080 0x002F ++#define AT49BV640D 0x02de + + static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *); + static int cfi_intelext_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); +@@ -156,6 +157,47 @@ static void cfi_tell_features(struct cfi_pri_intelext *extp) + } + #endif + ++/* Atmel chips don't use the same PRI format as Intel chips */ ++static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param) ++{ ++ struct map_info *map = mtd->priv; ++ struct cfi_private *cfi = map->fldrv_priv; ++ struct cfi_pri_intelext *extp = cfi->cmdset_priv; ++ struct cfi_pri_atmel atmel_pri; ++ uint32_t features = 0; ++ ++ /* Reverse byteswapping */ ++ extp->FeatureSupport = cpu_to_le32(extp->FeatureSupport); ++ extp->BlkStatusRegMask = cpu_to_le16(extp->BlkStatusRegMask); ++ extp->ProtRegAddr = cpu_to_le16(extp->ProtRegAddr); ++ ++ memcpy(&atmel_pri, extp, sizeof(atmel_pri)); ++ memset((char *)extp + 5, 0, sizeof(*extp) - 5); ++ ++ printk(KERN_ERR "atmel Features: %02x\n", atmel_pri.Features); ++ ++ if (atmel_pri.Features & 0x01) /* chip erase supported */ ++ features |= (1<<0); ++ if (atmel_pri.Features & 0x02) /* erase suspend supported */ ++ features |= (1<<1); ++ if (atmel_pri.Features & 0x04) /* program suspend supported */ ++ features |= (1<<2); ++ if (atmel_pri.Features & 0x08) /* simultaneous operations supported */ ++ features |= (1<<9); ++ if (atmel_pri.Features & 0x20) /* page mode read supported */ ++ features |= (1<<7); ++ if (atmel_pri.Features & 0x40) /* queued erase supported */ ++ features |= (1<<4); ++ if (atmel_pri.Features & 0x80) /* Protection bits supported */ ++ features |= (1<<6); ++ ++ extp->FeatureSupport = features; ++ ++ /* burst write mode not supported */ ++ cfi->cfiq->BufWriteTimeoutTyp = 0; ++ cfi->cfiq->BufWriteTimeoutMax = 0; ++} ++ + #ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE + /* Some Intel Strata Flash prior to FPO revision C has bugs in this area */ + static void fixup_intel_strataflash(struct mtd_info *mtd, void* param) +@@ -233,6 +275,7 @@ static void fixup_use_powerup_lock(struct mtd_info *mtd, void *param) + } + + static struct cfi_fixup cfi_fixup_table[] = { ++ { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, + #ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE + { CFI_MFR_ANY, CFI_ID_ANY, fixup_intel_strataflash, NULL }, + #endif +diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c +index 1f64458..205977b 100644 +--- a/drivers/mtd/chips/cfi_cmdset_0002.c ++++ b/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -185,6 +185,10 @@ static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param) + extp->TopBottom = 2; + else + extp->TopBottom = 3; ++ ++ /* burst write mode not supported */ ++ cfi->cfiq->BufWriteTimeoutTyp = 0; ++ cfi->cfiq->BufWriteTimeoutMax = 0; + } + + static void fixup_use_secsi(struct mtd_info *mtd, void *param) +@@ -217,6 +221,7 @@ static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param) + } + + static struct cfi_fixup cfi_fixup_table[] = { ++ { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, + #ifdef AMD_BOOTLOC_BUG + { CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL }, + #endif +@@ -229,7 +234,6 @@ static struct cfi_fixup cfi_fixup_table[] = { + #if !FORCE_WORD_WRITE + { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, }, + #endif +- { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, + { 0, 0, NULL, NULL } + }; + static struct cfi_fixup jedec_fixup_table[] = { +diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig +index b49375a..b9cb56a 100644 +--- a/drivers/net/Kconfig ++++ b/drivers/net/Kconfig +@@ -191,7 +191,7 @@ config MII + config MACB + tristate "Atmel MACB support" + depends on NET_ETHERNET && (AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263) +- select MII ++ select PHYLIB + help + The Atmel MACB ethernet interface is found on many AT32 and AT91 + parts. Say Y to include support for the MACB chip. +diff --git a/drivers/net/macb.c b/drivers/net/macb.c +index 0e04f7a..c20a585 100644 +--- a/drivers/net/macb.c ++++ b/drivers/net/macb.c +@@ -17,13 +17,14 @@ + #include <linux/init.h> + #include <linux/netdevice.h> + #include <linux/etherdevice.h> +-#include <linux/mii.h> +-#include <linux/mutex.h> + #include <linux/dma-mapping.h> +-#include <linux/ethtool.h> + #include <linux/platform_device.h> ++#include <linux/phy.h> + + #include <asm/arch/board.h> ++#if defined(CONFIG_ARCH_AT91) ++#include <asm/arch/cpu.h> ++#endif + + #include "macb.h" + +@@ -85,172 +86,202 @@ static void __init macb_get_hwaddr(struct macb *bp) + memcpy(bp->dev->dev_addr, addr, sizeof(addr)); + } + +-static void macb_enable_mdio(struct macb *bp) ++static int macb_mdio_read(struct mii_bus *bus, int mii_id, int regnum) + { +- unsigned long flags; +- u32 reg; +- +- spin_lock_irqsave(&bp->lock, flags); +- reg = macb_readl(bp, NCR); +- reg |= MACB_BIT(MPE); +- macb_writel(bp, NCR, reg); +- macb_writel(bp, IER, MACB_BIT(MFD)); +- spin_unlock_irqrestore(&bp->lock, flags); +-} +- +-static void macb_disable_mdio(struct macb *bp) +-{ +- unsigned long flags; +- u32 reg; +- +- spin_lock_irqsave(&bp->lock, flags); +- reg = macb_readl(bp, NCR); +- reg &= ~MACB_BIT(MPE); +- macb_writel(bp, NCR, reg); +- macb_writel(bp, IDR, MACB_BIT(MFD)); +- spin_unlock_irqrestore(&bp->lock, flags); +-} +- +-static int macb_mdio_read(struct net_device *dev, int phy_id, int location) +-{ +- struct macb *bp = netdev_priv(dev); ++ struct macb *bp = bus->priv; + int value; + +- mutex_lock(&bp->mdio_mutex); +- +- macb_enable_mdio(bp); + macb_writel(bp, MAN, (MACB_BF(SOF, MACB_MAN_SOF) + | MACB_BF(RW, MACB_MAN_READ) +- | MACB_BF(PHYA, phy_id) +- | MACB_BF(REGA, location) ++ | MACB_BF(PHYA, mii_id) ++ | MACB_BF(REGA, regnum) + | MACB_BF(CODE, MACB_MAN_CODE))); + +- wait_for_completion(&bp->mdio_complete); ++ /* wait for end of transfer */ ++ while (!MACB_BFEXT(IDLE, macb_readl(bp, NSR))) ++ cpu_relax(); + + value = MACB_BFEXT(DATA, macb_readl(bp, MAN)); +- macb_disable_mdio(bp); +- mutex_unlock(&bp->mdio_mutex); + + return value; + } + +-static void macb_mdio_write(struct net_device *dev, int phy_id, +- int location, int val) ++static int macb_mdio_write(struct mii_bus *bus, int mii_id, int regnum, ++ u16 value) + { +- struct macb *bp = netdev_priv(dev); +- +- dev_dbg(&bp->pdev->dev, "mdio_write %02x:%02x <- %04x\n", +- phy_id, location, val); +- +- mutex_lock(&bp->mdio_mutex); +- macb_enable_mdio(bp); ++ struct macb *bp = bus->priv; + + macb_writel(bp, MAN, (MACB_BF(SOF, MACB_MAN_SOF) + | MACB_BF(RW, MACB_MAN_WRITE) +- | MACB_BF(PHYA, phy_id) +- | MACB_BF(REGA, location) ++ | MACB_BF(PHYA, mii_id) ++ | MACB_BF(REGA, regnum) + | MACB_BF(CODE, MACB_MAN_CODE) +- | MACB_BF(DATA, val))); ++ | MACB_BF(DATA, value))); + +- wait_for_completion(&bp->mdio_complete); ++ /* wait for end of transfer */ ++ while (!MACB_BFEXT(IDLE, macb_readl(bp, NSR))) ++ cpu_relax(); + +- macb_disable_mdio(bp); +- mutex_unlock(&bp->mdio_mutex); ++ return 0; + } + +-static int macb_phy_probe(struct macb *bp) ++static int macb_mdio_reset(struct mii_bus *bus) + { +- int phy_address; +- u16 phyid1, phyid2; ++ return 0; ++} + +- for (phy_address = 0; phy_address < 32; phy_address++) { +- phyid1 = macb_mdio_read(bp->dev, phy_address, MII_PHYSID1); +- phyid2 = macb_mdio_read(bp->dev, phy_address, MII_PHYSID2); ++static void macb_handle_link_change(struct net_device *dev) ++{ ++ struct macb *bp = netdev_priv(dev); ++ struct phy_device *phydev = bp->phy_dev; ++ unsigned long flags; + +- if (phyid1 != 0xffff && phyid1 != 0x0000 +- && phyid2 != 0xffff && phyid2 != 0x0000) +- break; ++ int status_change = 0; ++ ++ spin_lock_irqsave(&bp->lock, flags); ++ ++ if (phydev->link) { ++ if ((bp->speed != phydev->speed) || ++ (bp->duplex != phydev->duplex)) { ++ u32 reg; ++ ++ reg = macb_readl(bp, NCFGR); ++ reg &= ~(MACB_BIT(SPD) | MACB_BIT(FD)); ++ ++ if (phydev->duplex) ++ reg |= MACB_BIT(FD); ++ if (phydev->speed) ++ reg |= MACB_BIT(SPD); ++ ++ macb_writel(bp, NCFGR, reg); ++ ++ bp->speed = phydev->speed; ++ bp->duplex = phydev->duplex; ++ status_change = 1; ++ } + } + +- if (phy_address == 32) +- return -ENODEV; ++ if (phydev->link != bp->link) { ++ if (phydev->link) ++ netif_schedule(dev); ++ else { ++ bp->speed = 0; ++ bp->duplex = -1; ++ } ++ bp->link = phydev->link; + +- dev_info(&bp->pdev->dev, +- "detected PHY at address %d (ID %04x:%04x)\n", +- phy_address, phyid1, phyid2); ++ status_change = 1; ++ } + +- bp->mii.phy_id = phy_address; +- return 0; ++ spin_unlock_irqrestore(&bp->lock, flags); ++ ++ if (status_change) { ++ if (phydev->link) ++ printk(KERN_INFO "%s: link up (%d/%s)\n", ++ dev->name, phydev->speed, ++ DUPLEX_FULL == phydev->duplex ? "Full":"Half"); ++ else ++ printk(KERN_INFO "%s: link down\n", dev->name); ++ } + } + +-static void macb_set_media(struct macb *bp, int media) ++/* based on au1000_eth. c*/ ++static int macb_mii_probe(struct net_device *dev) + { +- u32 reg; ++ struct macb *bp = netdev_priv(dev); ++ struct phy_device *phydev = NULL; ++ struct eth_platform_data *pdata; ++ int phy_addr; + +- spin_lock_irq(&bp->lock); +- reg = macb_readl(bp, NCFGR); +- reg &= ~(MACB_BIT(SPD) | MACB_BIT(FD)); +- if (media & (ADVERTISE_100HALF | ADVERTISE_100FULL)) +- reg |= MACB_BIT(SPD); +- if (media & ADVERTISE_FULL) +- reg |= MACB_BIT(FD); +- macb_writel(bp, NCFGR, reg); +- spin_unlock_irq(&bp->lock); ++ /* find the first phy */ ++ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { ++ if (bp->mii_bus.phy_map[phy_addr]) { ++ phydev = bp->mii_bus.phy_map[phy_addr]; ++ break; ++ } ++ } ++ ++ if (!phydev) { ++ printk (KERN_ERR "%s: no PHY found\n", dev->name); ++ return -1; ++ } ++ ++ pdata = bp->pdev->dev.platform_data; ++ /* TODO : add pin_irq */ ++ ++ /* attach the mac to the phy */ ++ if (pdata && pdata->is_rmii) { ++ phydev = phy_connect(dev, phydev->dev.bus_id, ++ &macb_handle_link_change, 0, PHY_INTERFACE_MODE_RMII); ++ } else { ++ phydev = phy_connect(dev, phydev->dev.bus_id, ++ &macb_handle_link_change, 0, PHY_INTERFACE_MODE_MII); ++ } ++ ++ if (IS_ERR(phydev)) { ++ printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); ++ return PTR_ERR(phydev); ++ } ++ ++ /* mask with MAC supported features */ ++ phydev->supported &= PHY_BASIC_FEATURES; ++ ++ phydev->advertising = phydev->supported; ++ ++ bp->link = 0; ++ bp->speed = 0; ++ bp->duplex = -1; ++ bp->phy_dev = phydev; ++ ++ return 0; + } + +-static void macb_check_media(struct macb *bp, int ok_to_print, int init_media) ++static int macb_mii_init(struct macb *bp) + { +- struct mii_if_info *mii = &bp->mii; +- unsigned int old_carrier, new_carrier; +- int advertise, lpa, media, duplex; ++ struct eth_platform_data *pdata; ++ int err = -ENXIO, i; + +- /* if forced media, go no further */ +- if (mii->force_media) +- return; ++ /* Enable managment port */ ++ macb_writel(bp, NCR, MACB_BIT(MPE)); + +- /* check current and old link status */ +- old_carrier = netif_carrier_ok(mii->dev) ? 1 : 0; +- new_carrier = (unsigned int) mii_link_ok(mii); ++ bp->mii_bus.name = "MACB_mii_bus", ++ bp->mii_bus.read = &macb_mdio_read, ++ bp->mii_bus.write = &macb_mdio_write, ++ bp->mii_bus.reset = &macb_mdio_reset, ++ bp->mii_bus.id = bp->pdev->id, ++ bp->mii_bus.priv = bp, ++ bp->mii_bus.dev = &bp->dev->dev; ++ pdata = bp->pdev->dev.platform_data; + +- /* if carrier state did not change, assume nothing else did */ +- if (!init_media && old_carrier == new_carrier) +- return; ++ if (pdata) ++ bp->mii_bus.phy_mask = pdata->phy_mask; + +- /* no carrier, nothing much to do */ +- if (!new_carrier) { +- netif_carrier_off(mii->dev); +- printk(KERN_INFO "%s: link down\n", mii->dev->name); +- return; ++ bp->mii_bus.irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL); ++ if (!bp->mii_bus.irq) { ++ err = -ENOMEM; ++ goto err_out; + } + +- /* +- * we have carrier, see who's on the other end +- */ +- netif_carrier_on(mii->dev); ++ for (i = 0; i < PHY_MAX_ADDR; i++) ++ bp->mii_bus.irq[i] = PHY_POLL; + +- /* get MII advertise and LPA values */ +- if (!init_media && mii->advertising) { +- advertise = mii->advertising; +- } else { +- advertise = mii->mdio_read(mii->dev, mii->phy_id, MII_ADVERTISE); +- mii->advertising = advertise; +- } +- lpa = mii->mdio_read(mii->dev, mii->phy_id, MII_LPA); ++ platform_set_drvdata(bp->dev, &bp->mii_bus); + +- /* figure out media and duplex from advertise and LPA values */ +- media = mii_nway_result(lpa & advertise); +- duplex = (media & ADVERTISE_FULL) ? 1 : 0; ++ if (mdiobus_register(&bp->mii_bus)) ++ goto err_out_free_mdio_irq; + +- if (ok_to_print) +- printk(KERN_INFO "%s: link up, %sMbps, %s-duplex, lpa 0x%04X\n", +- mii->dev->name, +- media & (ADVERTISE_100FULL | ADVERTISE_100HALF) ? "100" : "10", +- duplex ? "full" : "half", lpa); ++ if (macb_mii_probe(bp->dev) != 0) { ++ goto err_out_unregister_bus; ++ } + +- mii->full_duplex = duplex; ++ return 0; + +- /* Let the MAC know about the new link state */ +- macb_set_media(bp, media); ++err_out_unregister_bus: ++ mdiobus_unregister(&bp->mii_bus); ++err_out_free_mdio_irq: ++ kfree(bp->mii_bus.irq); ++err_out: ++ return err; + } + + static void macb_update_stats(struct macb *bp) +@@ -265,16 +296,6 @@ static void macb_update_stats(struct macb *bp) + *p += __raw_readl(reg); + } + +-static void macb_periodic_task(struct work_struct *work) +-{ +- struct macb *bp = container_of(work, struct macb, periodic_task.work); +- +- macb_update_stats(bp); +- macb_check_media(bp, 1, 0); +- +- schedule_delayed_work(&bp->periodic_task, HZ); +-} +- + static void macb_tx(struct macb *bp) + { + unsigned int tail; +@@ -519,9 +540,6 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id) + spin_lock(&bp->lock); + + while (status) { +- if (status & MACB_BIT(MFD)) +- complete(&bp->mdio_complete); +- + /* close possible race with dev_close */ + if (unlikely(!netif_running(dev))) { + macb_writel(bp, IDR, ~0UL); +@@ -535,7 +553,8 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id) + * until we have processed the buffers + */ + macb_writel(bp, IDR, MACB_RX_INT_FLAGS); +- dev_dbg(&bp->pdev->dev, "scheduling RX softirq\n"); ++ dev_dbg(&bp->pdev->dev, ++ "scheduling RX softirq\n"); + __netif_rx_schedule(dev); + } + } +@@ -765,7 +784,7 @@ static void macb_init_hw(struct macb *bp) + macb_writel(bp, TBQP, bp->tx_ring_dma); + + /* Enable TX and RX */ +- macb_writel(bp, NCR, MACB_BIT(RE) | MACB_BIT(TE)); ++ macb_writel(bp, NCR, MACB_BIT(RE) | MACB_BIT(TE) | MACB_BIT(MPE)); + + /* Enable interrupts */ + macb_writel(bp, IER, (MACB_BIT(RCOMP) +@@ -776,18 +795,126 @@ static void macb_init_hw(struct macb *bp) + | MACB_BIT(TCOMP) + | MACB_BIT(ISR_ROVR) + | MACB_BIT(HRESP))); ++ + } + +-static void macb_init_phy(struct net_device *dev) ++/* ++ * The hash address register is 64 bits long and takes up two ++ * locations in the memory map. The least significant bits are stored ++ * in EMAC_HSL and the most significant bits in EMAC_HSH. ++ * ++ * The unicast hash enable and the multicast hash enable bits in the ++ * network configuration register enable the reception of hash matched ++ * frames. The destination address is reduced to a 6 bit index into ++ * the 64 bit hash register using the following hash function. The ++ * hash function is an exclusive or of every sixth bit of the ++ * destination address. ++ * ++ * hi[5] = da[5] ^ da[11] ^ da[17] ^ da[23] ^ da[29] ^ da[35] ^ da[41] ^ da[47] ++ * hi[4] = da[4] ^ da[10] ^ da[16] ^ da[22] ^ da[28] ^ da[34] ^ da[40] ^ da[46] ++ * hi[3] = da[3] ^ da[09] ^ da[15] ^ da[21] ^ da[27] ^ da[33] ^ da[39] ^ da[45] ++ * hi[2] = da[2] ^ da[08] ^ da[14] ^ da[20] ^ da[26] ^ da[32] ^ da[38] ^ da[44] ++ * hi[1] = da[1] ^ da[07] ^ da[13] ^ da[19] ^ da[25] ^ da[31] ^ da[37] ^ da[43] ++ * hi[0] = da[0] ^ da[06] ^ da[12] ^ da[18] ^ da[24] ^ da[30] ^ da[36] ^ da[42] ++ * ++ * da[0] represents the least significant bit of the first byte ++ * received, that is, the multicast/unicast indicator, and da[47] ++ * represents the most significant bit of the last byte received. If ++ * the hash index, hi[n], points to a bit that is set in the hash ++ * register then the frame will be matched according to whether the ++ * frame is multicast or unicast. A multicast match will be signalled ++ * if the multicast hash enable bit is set, da[0] is 1 and the hash ++ * index points to a bit set in the hash register. A unicast match ++ * will be signalled if the unicast hash enable bit is set, da[0] is 0 ++ * and the hash index points to a bit set in the hash register. To ++ * receive all multicast frames, the hash register should be set with ++ * all ones and the multicast hash enable bit should be set in the ++ * network configuration register. ++ */ ++ ++static inline int hash_bit_value(int bitnr, __u8 *addr) + { ++ if (addr[bitnr / 8] & (1 << (bitnr % 8))) ++ return 1; ++ return 0; ++} ++ ++/* ++ * Return the hash index value for the specified address. ++ */ ++static int hash_get_index(__u8 *addr) ++{ ++ int i, j, bitval; ++ int hash_index = 0; ++ ++ for (j = 0; j < 6; j++) { ++ for (i = 0, bitval = 0; i < 8; i++) ++ bitval ^= hash_bit_value(i*6 + j, addr); ++ ++ hash_index |= (bitval << j); ++ } ++ ++ return hash_index; ++} ++ ++/* ++ * Add multicast addresses to the internal multicast-hash table. ++ */ ++static void macb_sethashtable(struct net_device *dev) ++{ ++ struct dev_mc_list *curr; ++ unsigned long mc_filter[2]; ++ unsigned int i, bitnr; ++ struct macb *bp = netdev_priv(dev); ++ ++ mc_filter[0] = mc_filter[1] = 0; ++ ++ curr = dev->mc_list; ++ for (i = 0; i < dev->mc_count; i++, curr = curr->next) { ++ if (!curr) break; /* unexpected end of list */ ++ ++ bitnr = hash_get_index(curr->dmi_addr); ++ mc_filter[bitnr >> 5] |= 1 << (bitnr & 31); ++ } ++ ++ macb_writel(bp, HRB, mc_filter[0]); ++ macb_writel(bp, HRT, mc_filter[1]); ++} ++ ++/* ++ * Enable/Disable promiscuous and multicast modes. ++ */ ++static void macb_set_rx_mode(struct net_device *dev) ++{ ++ unsigned long cfg; + struct macb *bp = netdev_priv(dev); + +- /* Set some reasonable default settings */ +- macb_mdio_write(dev, bp->mii.phy_id, MII_ADVERTISE, +- ADVERTISE_CSMA | ADVERTISE_ALL); +- macb_mdio_write(dev, bp->mii.phy_id, MII_BMCR, +- (BMCR_SPEED100 | BMCR_ANENABLE +- | BMCR_ANRESTART | BMCR_FULLDPLX)); ++ cfg = macb_readl(bp, NCFGR); ++ ++ if (dev->flags & IFF_PROMISC) ++ /* Enable promiscuous mode */ ++ cfg |= MACB_BIT(CAF); ++ else if (dev->flags & (~IFF_PROMISC)) ++ /* Disable promiscuous mode */ ++ cfg &= ~MACB_BIT(CAF); ++ ++ if (dev->flags & IFF_ALLMULTI) { ++ /* Enable all multicast mode */ ++ macb_writel(bp, HRB, -1); ++ macb_writel(bp, HRT, -1); ++ cfg |= MACB_BIT(NCFGR_MTI); ++ } else if (dev->mc_count > 0) { ++ /* Enable specific multicasts */ ++ macb_sethashtable(dev); ++ cfg |= MACB_BIT(NCFGR_MTI); ++ } else if (dev->flags & (~IFF_ALLMULTI)) { ++ /* Disable all multicast mode */ ++ macb_writel(bp, HRB, 0); ++ macb_writel(bp, HRT, 0); ++ cfg &= ~MACB_BIT(NCFGR_MTI); ++ } ++ ++ macb_writel(bp, NCFGR, cfg); + } + + static int macb_open(struct net_device *dev) +@@ -797,6 +924,10 @@ static int macb_open(struct net_device *dev) + + dev_dbg(&bp->pdev->dev, "open\n"); + ++ /* if the phy is not yet register, retry later*/ ++ if (!bp->phy_dev) ++ return -EAGAIN; ++ + if (!is_valid_ether_addr(dev->dev_addr)) + return -EADDRNOTAVAIL; + +@@ -810,12 +941,11 @@ static int macb_open(struct net_device *dev) + + macb_init_rings(bp); + macb_init_hw(bp); +- macb_init_phy(dev); + +- macb_check_media(bp, 1, 1); +- netif_start_queue(dev); ++ /* schedule a link state check */ ++ phy_start(bp->phy_dev); + +- schedule_delayed_work(&bp->periodic_task, HZ); ++ netif_start_queue(dev); + + return 0; + } +@@ -825,10 +955,11 @@ static int macb_close(struct net_device *dev) + struct macb *bp = netdev_priv(dev); + unsigned long flags; + +- cancel_rearming_delayed_work(&bp->periodic_task); +- + netif_stop_queue(dev); + ++ if (bp->phy_dev) ++ phy_stop(bp->phy_dev); ++ + spin_lock_irqsave(&bp->lock, flags); + macb_reset_hw(bp); + netif_carrier_off(dev); +@@ -845,6 +976,9 @@ static struct net_device_stats *macb_get_stats(struct net_device *dev) + struct net_device_stats *nstat = &bp->stats; + struct macb_stats *hwstat = &bp->hw_stats; + ++ /* read stats from hardware */ ++ macb_update_stats(bp); ++ + /* Convert HW stats into netdevice stats */ + nstat->rx_errors = (hwstat->rx_fcs_errors + + hwstat->rx_align_errors + +@@ -882,18 +1016,27 @@ static struct net_device_stats *macb_get_stats(struct net_device *dev) + static int macb_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) + { + struct macb *bp = netdev_priv(dev); ++ struct phy_device *phydev = bp->phy_dev; + +- return mii_ethtool_gset(&bp->mii, cmd); ++ if (!phydev) ++ return -ENODEV; ++ ++ return phy_ethtool_gset(phydev, cmd); + } + + static int macb_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) + { + struct macb *bp = netdev_priv(dev); ++ struct phy_device *phydev = bp->phy_dev; + +- return mii_ethtool_sset(&bp->mii, cmd); ++ if (!phydev) ++ return -ENODEV; ++ ++ return phy_ethtool_sset(phydev, cmd); + } + +-static void macb_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) ++static void macb_get_drvinfo(struct net_device *dev, ++ struct ethtool_drvinfo *info) + { + struct macb *bp = netdev_priv(dev); + +@@ -902,104 +1045,34 @@ static void macb_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *inf + strcpy(info->bus_info, bp->pdev->dev.bus_id); + } + +-static int macb_nway_reset(struct net_device *dev) +-{ +- struct macb *bp = netdev_priv(dev); +- return mii_nway_restart(&bp->mii); +-} +- + static struct ethtool_ops macb_ethtool_ops = { + .get_settings = macb_get_settings, + .set_settings = macb_set_settings, + .get_drvinfo = macb_get_drvinfo, +- .nway_reset = macb_nway_reset, + .get_link = ethtool_op_get_link, + }; + + static int macb_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) + { + struct macb *bp = netdev_priv(dev); ++ struct phy_device *phydev = bp->phy_dev; + + if (!netif_running(dev)) + return -EINVAL; + +- return generic_mii_ioctl(&bp->mii, if_mii(rq), cmd, NULL); +-} +- +-static ssize_t macb_mii_show(const struct device *_dev, char *buf, +- unsigned long addr) +-{ +- struct net_device *dev = to_net_dev(_dev); +- struct macb *bp = netdev_priv(dev); +- ssize_t ret = -EINVAL; +- +- if (netif_running(dev)) { +- int value; +- value = macb_mdio_read(dev, bp->mii.phy_id, addr); +- ret = sprintf(buf, "0x%04x\n", (uint16_t)value); +- } +- +- return ret; +-} +- +-#define MII_ENTRY(name, addr) \ +-static ssize_t show_##name(struct device *_dev, \ +- struct device_attribute *attr, \ +- char *buf) \ +-{ \ +- return macb_mii_show(_dev, buf, addr); \ +-} \ +-static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) +- +-MII_ENTRY(bmcr, MII_BMCR); +-MII_ENTRY(bmsr, MII_BMSR); +-MII_ENTRY(physid1, MII_PHYSID1); +-MII_ENTRY(physid2, MII_PHYSID2); +-MII_ENTRY(advertise, MII_ADVERTISE); +-MII_ENTRY(lpa, MII_LPA); +-MII_ENTRY(expansion, MII_EXPANSION); +- +-static struct attribute *macb_mii_attrs[] = { +- &dev_attr_bmcr.attr, +- &dev_attr_bmsr.attr, +- &dev_attr_physid1.attr, +- &dev_attr_physid2.attr, +- &dev_attr_advertise.attr, +- &dev_attr_lpa.attr, +- &dev_attr_expansion.attr, +- NULL, +-}; +- +-static struct attribute_group macb_mii_group = { +- .name = "mii", +- .attrs = macb_mii_attrs, +-}; +- +-static void macb_unregister_sysfs(struct net_device *net) +-{ +- struct device *_dev = &net->dev; ++ if (!phydev) ++ return -ENODEV; + +- sysfs_remove_group(&_dev->kobj, &macb_mii_group); ++ return phy_mii_ioctl(phydev, if_mii(rq), cmd); + } + +-static int macb_register_sysfs(struct net_device *net) +-{ +- struct device *_dev = &net->dev; +- int ret; +- +- ret = sysfs_create_group(&_dev->kobj, &macb_mii_group); +- if (ret) +- printk(KERN_WARNING +- "%s: sysfs mii attribute registration failed: %d\n", +- net->name, ret); +- return ret; +-} + static int __devinit macb_probe(struct platform_device *pdev) + { + struct eth_platform_data *pdata; + struct resource *regs; + struct net_device *dev; + struct macb *bp; ++ struct phy_device *phydev; + unsigned long pclk_hz; + u32 config; + int err = -ENXIO; +@@ -1073,6 +1146,7 @@ static int __devinit macb_probe(struct platform_device *pdev) + dev->stop = macb_close; + dev->hard_start_xmit = macb_start_xmit; + dev->get_stats = macb_get_stats; ++ dev->set_multicast_list = macb_set_rx_mode; + dev->do_ioctl = macb_ioctl; + dev->poll = macb_poll; + dev->weight = 64; +@@ -1080,10 +1154,6 @@ static int __devinit macb_probe(struct platform_device *pdev) + + dev->base_addr = regs->start; + +- INIT_DELAYED_WORK(&bp->periodic_task, macb_periodic_task); +- mutex_init(&bp->mdio_mutex); +- init_completion(&bp->mdio_complete); +- + /* Set MII management clock divider */ + pclk_hz = clk_get_rate(bp->pclk); + if (pclk_hz <= 20000000) +@@ -1096,20 +1166,9 @@ static int __devinit macb_probe(struct platform_device *pdev) + config = MACB_BF(CLK, MACB_CLK_DIV64); + macb_writel(bp, NCFGR, config); + +- bp->mii.dev = dev; +- bp->mii.mdio_read = macb_mdio_read; +- bp->mii.mdio_write = macb_mdio_write; +- bp->mii.phy_id_mask = 0x1f; +- bp->mii.reg_num_mask = 0x1f; +- + macb_get_hwaddr(bp); +- err = macb_phy_probe(bp); +- if (err) { +- dev_err(&pdev->dev, "Failed to detect PHY, aborting.\n"); +- goto err_out_free_irq; +- } +- + pdata = pdev->dev.platform_data; ++ + if (pdata && pdata->is_rmii) + #if defined(CONFIG_ARCH_AT91) + macb_writel(bp, USRIO, (MACB_BIT(RMII) | MACB_BIT(CLKEN)) ); +@@ -1131,9 +1190,11 @@ static int __devinit macb_probe(struct platform_device *pdev) + goto err_out_free_irq; + } + +- platform_set_drvdata(pdev, dev); ++ if (macb_mii_init(bp) != 0) { ++ goto err_out_unregister_netdev; ++ } + +- macb_register_sysfs(dev); ++ platform_set_drvdata(pdev, dev); + + printk(KERN_INFO "%s: Atmel MACB at 0x%08lx irq %d " + "(%02x:%02x:%02x:%02x:%02x:%02x)\n", +@@ -1141,8 +1202,15 @@ static int __devinit macb_probe(struct platform_device *pdev) + dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], + dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); + ++ phydev = bp->phy_dev; ++ printk(KERN_INFO "%s: attached PHY driver [%s] " ++ "(mii_bus:phy_addr=%s, irq=%d)\n", ++ dev->name, phydev->drv->name, phydev->dev.bus_id, phydev->irq); ++ + return 0; + ++err_out_unregister_netdev: ++ unregister_netdev(dev); + err_out_free_irq: + free_irq(dev->irq, dev); + err_out_iounmap: +@@ -1153,7 +1221,9 @@ err_out_disable_clocks: + clk_put(bp->hclk); + #endif + clk_disable(bp->pclk); ++#ifndef CONFIG_ARCH_AT91 + err_out_put_pclk: ++#endif + clk_put(bp->pclk); + err_out_free_dev: + free_netdev(dev); +@@ -1171,7 +1241,8 @@ static int __devexit macb_remove(struct platform_device *pdev) + + if (dev) { + bp = netdev_priv(dev); +- macb_unregister_sysfs(dev); ++ mdiobus_unregister(&bp->mii_bus); ++ kfree(bp->mii_bus.irq); + unregister_netdev(dev); + free_irq(dev->irq, dev); + iounmap(bp->regs); +diff --git a/drivers/net/macb.h b/drivers/net/macb.h +index b3bb218..4e3283e 100644 +--- a/drivers/net/macb.h ++++ b/drivers/net/macb.h +@@ -383,11 +383,11 @@ struct macb { + + unsigned int rx_pending, tx_pending; + +- struct delayed_work periodic_task; +- +- struct mutex mdio_mutex; +- struct completion mdio_complete; +- struct mii_if_info mii; ++ struct mii_bus mii_bus; ++ struct phy_device *phy_dev; ++ unsigned int link; ++ unsigned int speed; ++ unsigned int duplex; + }; + + #endif /* _MACB_H */ +diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig +index 4e4c10a..6d014fb 100644 +--- a/drivers/rtc/Kconfig ++++ b/drivers/rtc/Kconfig +@@ -379,6 +379,13 @@ config RTC_DRV_PL031 + To compile this driver as a module, choose M here: the + module will be called rtc-pl031. + ++config RTC_DRV_AT32AP700X ++ tristate "AT32AP700X series RTC" ++ depends on RTC_CLASS && PLATFORM_AT32AP ++ help ++ Driver for the internal RTC (Realtime Clock) on Atmel AVR32 ++ AT32AP700x family processors. ++ + config RTC_DRV_AT91RM9200 + tristate "AT91RM9200" + depends on RTC_CLASS && ARCH_AT91RM9200 +diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile +index a1afbc2..5fb1c10 100644 +--- a/drivers/rtc/Makefile ++++ b/drivers/rtc/Makefile +@@ -19,6 +19,7 @@ obj-$(CONFIG_RTC_DRV_CMOS) += rtc-cmos.o + obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o + obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o + obj-$(CONFIG_RTC_DRV_TEST) += rtc-test.o ++obj-$(CONFIG_RTC_DRV_AT32AP700X) += rtc-at32ap700x.o + obj-$(CONFIG_RTC_DRV_DS1307) += rtc-ds1307.o + obj-$(CONFIG_RTC_DRV_DS1672) += rtc-ds1672.o + obj-$(CONFIG_RTC_DRV_DS1742) += rtc-ds1742.o +diff --git a/drivers/rtc/rtc-at32ap700x.c b/drivers/rtc/rtc-at32ap700x.c +new file mode 100644 +index 0000000..2999214 +--- /dev/null ++++ b/drivers/rtc/rtc-at32ap700x.c +@@ -0,0 +1,317 @@ ++/* ++ * An RTC driver for the AVR32 AT32AP700x processor series. ++ * ++ * Copyright (C) 2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published ++ * by the Free Software Foundation. ++ */ ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/platform_device.h> ++#include <linux/rtc.h> ++#include <linux/io.h> ++ ++/* ++ * This is a bare-bones RTC. It runs during most system sleep states, but has ++ * no battery backup and gets reset during system restart. It must be ++ * initialized from an external clock (network, I2C, etc) before it can be of ++ * much use. ++ * ++ * The alarm functionality is limited by the hardware, not supporting ++ * periodic interrupts. ++ */ ++ ++#define RTC_CTRL 0x00 ++#define RTC_CTRL_EN 0 ++#define RTC_CTRL_PCLR 1 ++#define RTC_CTRL_TOPEN 2 ++#define RTC_CTRL_PSEL 8 ++ ++#define RTC_VAL 0x04 ++ ++#define RTC_TOP 0x08 ++ ++#define RTC_IER 0x10 ++#define RTC_IER_TOPI 0 ++ ++#define RTC_IDR 0x14 ++#define RTC_IDR_TOPI 0 ++ ++#define RTC_IMR 0x18 ++#define RTC_IMR_TOPI 0 ++ ++#define RTC_ISR 0x1c ++#define RTC_ISR_TOPI 0 ++ ++#define RTC_ICR 0x20 ++#define RTC_ICR_TOPI 0 ++ ++#define RTC_BIT(name) (1 << RTC_##name) ++#define RTC_BF(name, value) ((value) << RTC_##name) ++ ++#define rtc_readl(dev, reg) \ ++ __raw_readl((dev)->regs + RTC_##reg) ++#define rtc_writel(dev, reg, value) \ ++ __raw_writel((value), (dev)->regs + RTC_##reg) ++ ++struct rtc_at32ap700x { ++ struct rtc_device *rtc; ++ void __iomem *regs; ++ unsigned long alarm_time; ++ unsigned long irq; ++ /* Protect against concurrent register access. */ ++ spinlock_t lock; ++}; ++ ++static int at32_rtc_readtime(struct device *dev, struct rtc_time *tm) ++{ ++ struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); ++ unsigned long now; ++ ++ now = rtc_readl(rtc, VAL); ++ rtc_time_to_tm(now, tm); ++ ++ return 0; ++} ++ ++static int at32_rtc_settime(struct device *dev, struct rtc_time *tm) ++{ ++ struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); ++ unsigned long now; ++ int ret; ++ ++ ret = rtc_tm_to_time(tm, &now); ++ if (ret == 0) ++ rtc_writel(rtc, VAL, now); ++ ++ return ret; ++} ++ ++static int at32_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) ++{ ++ struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); ++ ++ rtc_time_to_tm(rtc->alarm_time, &alrm->time); ++ alrm->pending = rtc_readl(rtc, IMR) & RTC_BIT(IMR_TOPI) ? 1 : 0; ++ ++ return 0; ++} ++ ++static int at32_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) ++{ ++ struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); ++ unsigned long rtc_unix_time; ++ unsigned long alarm_unix_time; ++ int ret; ++ ++ rtc_unix_time = rtc_readl(rtc, VAL); ++ ++ ret = rtc_tm_to_time(&alrm->time, &alarm_unix_time); ++ if (ret) ++ return ret; ++ ++ if (alarm_unix_time < rtc_unix_time) ++ return -EINVAL; ++ ++ spin_lock_irq(&rtc->lock); ++ rtc->alarm_time = alarm_unix_time; ++ rtc_writel(rtc, TOP, rtc->alarm_time); ++ if (alrm->pending) ++ rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) ++ | RTC_BIT(CTRL_TOPEN)); ++ else ++ rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) ++ & ~RTC_BIT(CTRL_TOPEN)); ++ spin_unlock_irq(&rtc->lock); ++ ++ return ret; ++} ++ ++static int at32_rtc_ioctl(struct device *dev, unsigned int cmd, ++ unsigned long arg) ++{ ++ struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); ++ int ret = 0; ++ ++ spin_lock_irq(&rtc->lock); ++ ++ switch (cmd) { ++ case RTC_AIE_ON: ++ if (rtc_readl(rtc, VAL) > rtc->alarm_time) { ++ ret = -EINVAL; ++ break; ++ } ++ rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) ++ | RTC_BIT(CTRL_TOPEN)); ++ rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); ++ rtc_writel(rtc, IER, RTC_BIT(IER_TOPI)); ++ break; ++ case RTC_AIE_OFF: ++ rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) ++ & ~RTC_BIT(CTRL_TOPEN)); ++ rtc_writel(rtc, IDR, RTC_BIT(IDR_TOPI)); ++ rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); ++ break; ++ default: ++ ret = -ENOIOCTLCMD; ++ break; ++ } ++ ++ spin_unlock_irq(&rtc->lock); ++ ++ return ret; ++} ++ ++static irqreturn_t at32_rtc_interrupt(int irq, void *dev_id) ++{ ++ struct rtc_at32ap700x *rtc = (struct rtc_at32ap700x *)dev_id; ++ unsigned long isr = rtc_readl(rtc, ISR); ++ unsigned long events = 0; ++ int ret = IRQ_NONE; ++ ++ spin_lock(&rtc->lock); ++ ++ if (isr & RTC_BIT(ISR_TOPI)) { ++ rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); ++ rtc_writel(rtc, IDR, RTC_BIT(IDR_TOPI)); ++ rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) ++ & ~RTC_BIT(CTRL_TOPEN)); ++ rtc_writel(rtc, VAL, rtc->alarm_time); ++ events = RTC_AF | RTC_IRQF; ++ rtc_update_irq(rtc->rtc, 1, events); ++ ret = IRQ_HANDLED; ++ } ++ ++ spin_unlock(&rtc->lock); ++ ++ return ret; ++} ++ ++static struct rtc_class_ops at32_rtc_ops = { ++ .ioctl = at32_rtc_ioctl, ++ .read_time = at32_rtc_readtime, ++ .set_time = at32_rtc_settime, ++ .read_alarm = at32_rtc_readalarm, ++ .set_alarm = at32_rtc_setalarm, ++}; ++ ++static int __init at32_rtc_probe(struct platform_device *pdev) ++{ ++ struct resource *regs; ++ struct rtc_at32ap700x *rtc; ++ int irq = -1; ++ int ret; ++ ++ rtc = kzalloc(sizeof(struct rtc_at32ap700x), GFP_KERNEL); ++ if (!rtc) { ++ dev_dbg(&pdev->dev, "out of memory\n"); ++ return -ENOMEM; ++ } ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) { ++ dev_dbg(&pdev->dev, "no mmio resource defined\n"); ++ ret = -ENXIO; ++ goto out; ++ } ++ ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) { ++ dev_dbg(&pdev->dev, "could not get irq\n"); ++ ret = -ENXIO; ++ goto out; ++ } ++ ++ ret = request_irq(irq, at32_rtc_interrupt, IRQF_SHARED, "rtc", rtc); ++ if (ret) { ++ dev_dbg(&pdev->dev, "could not request irq %d\n", irq); ++ goto out; ++ } ++ ++ rtc->irq = irq; ++ rtc->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!rtc->regs) { ++ ret = -ENOMEM; ++ dev_dbg(&pdev->dev, "could not map I/O memory\n"); ++ goto out_free_irq; ++ } ++ spin_lock_init(&rtc->lock); ++ ++ /* ++ * Maybe init RTC: count from zero at 1 Hz, disable wrap irq. ++ * ++ * Do not reset VAL register, as it can hold an old time ++ * from last JTAG reset. ++ */ ++ if (!(rtc_readl(rtc, CTRL) & RTC_BIT(CTRL_EN))) { ++ rtc_writel(rtc, CTRL, RTC_BIT(CTRL_PCLR)); ++ rtc_writel(rtc, IDR, RTC_BIT(IDR_TOPI)); ++ rtc_writel(rtc, CTRL, RTC_BF(CTRL_PSEL, 0xe) ++ | RTC_BIT(CTRL_EN)); ++ } ++ ++ rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, ++ &at32_rtc_ops, THIS_MODULE); ++ if (IS_ERR(rtc->rtc)) { ++ dev_dbg(&pdev->dev, "could not register rtc device\n"); ++ ret = PTR_ERR(rtc->rtc); ++ goto out_iounmap; ++ } ++ ++ platform_set_drvdata(pdev, rtc); ++ ++ dev_info(&pdev->dev, "Atmel RTC for AT32AP700x at %08lx irq %ld\n", ++ (unsigned long)rtc->regs, rtc->irq); ++ ++ return 0; ++ ++out_iounmap: ++ iounmap(rtc->regs); ++out_free_irq: ++ free_irq(irq, rtc); ++out: ++ kfree(rtc); ++ return ret; ++} ++ ++static int __exit at32_rtc_remove(struct platform_device *pdev) ++{ ++ struct rtc_at32ap700x *rtc = platform_get_drvdata(pdev); ++ ++ free_irq(rtc->irq, rtc); ++ iounmap(rtc->regs); ++ rtc_device_unregister(rtc->rtc); ++ kfree(rtc); ++ platform_set_drvdata(pdev, NULL); ++ ++ return 0; ++} ++ ++MODULE_ALIAS("at32ap700x_rtc"); ++ ++static struct platform_driver at32_rtc_driver = { ++ .remove = __exit_p(at32_rtc_remove), ++ .driver = { ++ .name = "at32ap700x_rtc", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init at32_rtc_init(void) ++{ ++ return platform_driver_probe(&at32_rtc_driver, at32_rtc_probe); ++} ++module_init(at32_rtc_init); ++ ++static void __exit at32_rtc_exit(void) ++{ ++ platform_driver_unregister(&at32_rtc_driver); ++} ++module_exit(at32_rtc_exit); ++ ++MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); ++MODULE_DESCRIPTION("Real time clock for AVR32 AT32AP700x"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c +index 3320bcd..4d6b3c5 100644 +--- a/drivers/serial/atmel_serial.c ++++ b/drivers/serial/atmel_serial.c +@@ -114,6 +114,7 @@ struct atmel_uart_port { + struct uart_port uart; /* uart */ + struct clk *clk; /* uart clock */ + unsigned short suspended; /* is port suspended? */ ++ int break_active; /* break being received */ + }; + + static struct atmel_uart_port atmel_ports[ATMEL_MAX_UART]; +@@ -252,6 +253,7 @@ static void atmel_break_ctl(struct uart_port *port, int break_state) + */ + static void atmel_rx_chars(struct uart_port *port) + { ++ struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port; + struct tty_struct *tty = port->info->tty; + unsigned int status, ch, flg; + +@@ -267,13 +269,29 @@ static void atmel_rx_chars(struct uart_port *port) + * note that the error handling code is + * out of the main execution path + */ +- if (unlikely(status & (ATMEL_US_PARE | ATMEL_US_FRAME | ATMEL_US_OVRE | ATMEL_US_RXBRK))) { ++ if (unlikely(status & (ATMEL_US_PARE | ATMEL_US_FRAME ++ | ATMEL_US_OVRE | ATMEL_US_RXBRK) ++ || atmel_port->break_active)) { + UART_PUT_CR(port, ATMEL_US_RSTSTA); /* clear error */ +- if (status & ATMEL_US_RXBRK) { ++ if (status & ATMEL_US_RXBRK ++ && !atmel_port->break_active) { + status &= ~(ATMEL_US_PARE | ATMEL_US_FRAME); /* ignore side-effect */ + port->icount.brk++; ++ atmel_port->break_active = 1; ++ UART_PUT_IER(port, ATMEL_US_RXBRK); + if (uart_handle_break(port)) + goto ignore_char; ++ } else { ++ /* ++ * This is either the end-of-break ++ * condition or we've received at ++ * least one character without RXBRK ++ * being set. In both cases, the next ++ * RXBRK will indicate start-of-break. ++ */ ++ UART_PUT_IDR(port, ATMEL_US_RXBRK); ++ status &= ~ATMEL_US_RXBRK; ++ atmel_port->break_active = 0; + } + if (status & ATMEL_US_PARE) + port->icount.parity++; +@@ -352,6 +370,16 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id) + /* Interrupt receive */ + if (pending & ATMEL_US_RXRDY) + atmel_rx_chars(port); ++ else if (pending & ATMEL_US_RXBRK) { ++ /* ++ * End of break detected. If it came along ++ * with a character, atmel_rx_chars will ++ * handle it. ++ */ ++ UART_PUT_CR(port, ATMEL_US_RSTSTA); ++ UART_PUT_IDR(port, ATMEL_US_RXBRK); ++ atmel_port->break_active = 0; ++ } + + // TODO: All reads to CSR will clear these interrupts! + if (pending & ATMEL_US_RIIC) port->icount.rng++; +diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c +index 8b2601d..8f5453f 100644 +--- a/drivers/spi/atmel_spi.c ++++ b/drivers/spi/atmel_spi.c +@@ -412,8 +412,8 @@ static int atmel_spi_setup(struct spi_device *spi) + csr |= SPI_BIT(NCPHA); + + /* TODO: DLYBS and DLYBCT */ +- csr |= SPI_BF(DLYBS, 10); +- csr |= SPI_BF(DLYBCT, 10); ++ csr |= SPI_BF(DLYBS, 0); ++ csr |= SPI_BF(DLYBCT, 0); + + /* chipselect must have been muxed as GPIO (e.g. in board setup) */ + npcs_pin = (unsigned int)spi->controller_data; +diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig +index f771a7c..0c3d55b 100644 +--- a/drivers/usb/gadget/Kconfig ++++ b/drivers/usb/gadget/Kconfig +@@ -175,6 +175,19 @@ config USB_LH7A40X + default USB_GADGET + select USB_GADGET_SELECTED + ++config USB_GADGET_ATMEL_USBA ++ boolean "Atmel USBA" ++ select USB_GADGET_DUALSPEED ++ depends on AVR32 ++ help ++ USBA is the integrated high-speed USB Device controller on ++ the AT32AP700x processors from Atmel. ++ ++config USB_ATMEL_USBA ++ tristate ++ depends on USB_GADGET_ATMEL_USBA ++ default USB_GADGET ++ select USB_GADGET_SELECTED + + config USB_GADGET_OMAP + boolean "OMAP USB Device Controller" +diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile +index 5db1939..c28da01 100644 +--- a/drivers/usb/gadget/Makefile ++++ b/drivers/usb/gadget/Makefile +@@ -8,6 +8,7 @@ obj-$(CONFIG_USB_GOKU) += goku_udc.o + obj-$(CONFIG_USB_OMAP) += omap_udc.o + obj-$(CONFIG_USB_LH7A40X) += lh7a40x_udc.o + obj-$(CONFIG_USB_AT91) += at91_udc.o ++obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o + obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o + + # +diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c +new file mode 100644 +index 0000000..34dbae3 +--- /dev/null ++++ b/drivers/usb/gadget/atmel_usba_udc.c +@@ -0,0 +1,2072 @@ ++/* ++ * Driver for the Atmel USBA high speed USB device controller ++ * ++ * Copyright (C) 2005-2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++/* #define DEBUG */ ++ ++#include <linux/clk.h> ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/io.h> ++#include <linux/device.h> ++#include <linux/dma-mapping.h> ++#include <linux/list.h> ++#include <linux/platform_device.h> ++#include <linux/usb/ch9.h> ++#include <linux/usb_gadget.h> ++#include <linux/delay.h> ++ ++#include <asm/gpio.h> ++#include <asm/arch/board.h> ++ ++#include "atmel_usba_udc.h" ++ ++#define DMA_ADDR_INVALID (~(dma_addr_t)0) ++ ++#define FIFO_IOMEM_ID 0 ++#define CTRL_IOMEM_ID 1 ++ ++#ifdef DEBUG ++#define DBG_ERR 0x0001 /* report all error returns */ ++#define DBG_HW 0x0002 /* debug hardware initialization */ ++#define DBG_GADGET 0x0004 /* calls to/from gadget driver */ ++#define DBG_INT 0x0008 /* interrupts */ ++#define DBG_BUS 0x0010 /* report changes in bus state */ ++#define DBG_QUEUE 0x0020 /* debug request queue processing */ ++#define DBG_FIFO 0x0040 /* debug FIFO contents */ ++#define DBG_DMA 0x0080 /* debug DMA handling */ ++#define DBG_REQ 0x0100 /* print out queued request length */ ++#define DBG_ALL 0xffff ++#define DBG_NONE 0x0000 ++ ++#define DEBUG_LEVEL (DBG_ERR) ++#define DBG(level, fmt, ...) \ ++ do { \ ++ if ((level) & DEBUG_LEVEL) \ ++ printk(KERN_DEBUG "udc: " fmt, ## __VA_ARGS__); \ ++ } while (0) ++#else ++#define DBG(level, fmt...) ++#endif ++ ++static struct usba_udc the_udc; ++ ++#ifdef CONFIG_DEBUG_FS ++#include <linux/debugfs.h> ++#include <linux/uaccess.h> ++ ++static int queue_dbg_open(struct inode *inode, struct file *file) ++{ ++ struct usba_ep *ep = inode->i_private; ++ struct usba_request *req, *req_copy; ++ struct list_head *queue_data; ++ ++ queue_data = kmalloc(sizeof(*queue_data), GFP_KERNEL); ++ if (!queue_data) ++ return -ENOMEM; ++ INIT_LIST_HEAD(queue_data); ++ ++ spin_lock_irq(&ep->udc->lock); ++ list_for_each_entry(req, &ep->queue, queue) { ++ req_copy = kmalloc(sizeof(*req_copy), GFP_ATOMIC); ++ if (!req_copy) ++ goto fail; ++ memcpy(req_copy, req, sizeof(*req_copy)); ++ list_add_tail(&req_copy->queue, queue_data); ++ } ++ spin_unlock_irq(&ep->udc->lock); ++ ++ file->private_data = queue_data; ++ return 0; ++ ++fail: ++ spin_unlock_irq(&ep->udc->lock); ++ list_for_each_entry_safe(req, req_copy, queue_data, queue) { ++ list_del(&req->queue); ++ kfree(req); ++ } ++ kfree(queue_data); ++ return -ENOMEM; ++} ++ ++/* ++ * bbbbbbbb llllllll IZS sssss nnnn FDL\n\0 ++ * ++ * b: buffer address ++ * l: buffer length ++ * I/i: interrupt/no interrupt ++ * Z/z: zero/no zero ++ * S/s: short ok/short not ok ++ * s: status ++ * n: nr_packets ++ * F/f: submitted/not submitted to FIFO ++ * D/d: using/not using DMA ++ * L/l: last transaction/not last transaction ++ */ ++static ssize_t queue_dbg_read(struct file *file, char __user *buf, ++ size_t nbytes, loff_t *ppos) ++{ ++ struct list_head *queue = file->private_data; ++ struct usba_request *req, *tmp_req; ++ size_t len, remaining, actual = 0; ++ char tmpbuf[38]; ++ ++ if (!access_ok(VERIFY_WRITE, buf, nbytes)) ++ return -EFAULT; ++ ++ mutex_lock(&file->f_dentry->d_inode->i_mutex); ++ list_for_each_entry_safe(req, tmp_req, queue, queue) { ++ len = snprintf(tmpbuf, sizeof(tmpbuf), ++ "%8p %08x %c%c%c %5d %c%c%c\n", ++ req->req.buf, req->req.length, ++ req->req.no_interrupt ? 'i' : 'I', ++ req->req.zero ? 'Z' : 'z', ++ req->req.short_not_ok ? 's' : 'S', ++ req->req.status, ++ req->submitted ? 'F' : 'f', ++ req->using_dma ? 'D' : 'd', ++ req->last_transaction ? 'L' : 'l'); ++ len = min(len, sizeof(tmpbuf)); ++ if (len > nbytes) ++ break; ++ ++ list_del(&req->queue); ++ kfree(req); ++ ++ remaining = __copy_to_user(buf, tmpbuf, len); ++ actual += len - remaining; ++ if (remaining) ++ break; ++ ++ nbytes -= len; ++ buf += len; ++ } ++ mutex_unlock(&file->f_dentry->d_inode->i_mutex); ++ ++ return actual; ++} ++ ++static int queue_dbg_release(struct inode *inode, struct file *file) ++{ ++ struct list_head *queue_data = file->private_data; ++ struct usba_request *req, *tmp_req; ++ ++ list_for_each_entry_safe(req, tmp_req, queue_data, queue) { ++ list_del(&req->queue); ++ kfree(req); ++ } ++ kfree(queue_data); ++ return 0; ++} ++ ++static int regs_dbg_open(struct inode *inode, struct file *file) ++{ ++ struct usba_udc *udc; ++ unsigned int i; ++ u32 *data; ++ int ret = -ENOMEM; ++ ++ mutex_lock(&inode->i_mutex); ++ udc = inode->i_private; ++ data = kmalloc(inode->i_size, GFP_KERNEL); ++ if (!data) ++ goto out; ++ ++ spin_lock_irq(&udc->lock); ++ for (i = 0; i < inode->i_size / 4; i++) ++ data[i] = __raw_readl(udc->regs + i * 4); ++ spin_unlock_irq(&udc->lock); ++ ++ file->private_data = data; ++ ret = 0; ++ ++out: ++ mutex_unlock(&inode->i_mutex); ++ ++ return ret; ++} ++ ++static ssize_t regs_dbg_read(struct file *file, char __user *buf, ++ size_t nbytes, loff_t *ppos) ++{ ++ struct inode *inode = file->f_dentry->d_inode; ++ int ret; ++ ++ mutex_lock(&inode->i_mutex); ++ ret = simple_read_from_buffer(buf, nbytes, ppos, ++ file->private_data, ++ file->f_dentry->d_inode->i_size); ++ mutex_unlock(&inode->i_mutex); ++ ++ return ret; ++} ++ ++static int regs_dbg_release(struct inode *inode, struct file *file) ++{ ++ kfree(file->private_data); ++ return 0; ++} ++ ++const struct file_operations queue_dbg_fops = { ++ .owner = THIS_MODULE, ++ .open = queue_dbg_open, ++ .llseek = no_llseek, ++ .read = queue_dbg_read, ++ .release = queue_dbg_release, ++}; ++ ++const struct file_operations regs_dbg_fops = { ++ .owner = THIS_MODULE, ++ .open = regs_dbg_open, ++ .llseek = generic_file_llseek, ++ .read = regs_dbg_read, ++ .release = regs_dbg_release, ++}; ++ ++static void usba_ep_init_debugfs(struct usba_udc *udc, ++ struct usba_ep *ep) ++{ ++ struct dentry *ep_root; ++ ++ ep_root = debugfs_create_dir(ep_name(ep), udc->debugfs_root); ++ if (!ep_root) ++ goto err_root; ++ ep->debugfs_dir = ep_root; ++ ++ ep->debugfs_queue = debugfs_create_file("queue", 0400, ep_root, ++ ep, &queue_dbg_fops); ++ if (!ep->debugfs_queue) ++ goto err_queue; ++ ++ if (ep_can_dma(ep)) { ++ ep->debugfs_dma_status ++ = debugfs_create_u32("dma_status", 0400, ep_root, ++ &ep->last_dma_status); ++ if (!ep->debugfs_dma_status) ++ goto err_dma_status; ++ } ++ if (ep_is_control(ep)) { ++ ep->debugfs_state ++ = debugfs_create_u32("state", 0400, ep_root, ++ &ep->state); ++ if (!ep->debugfs_state) ++ goto err_state; ++ } ++ ++ return; ++ ++err_state: ++ if (ep_can_dma(ep)) ++ debugfs_remove(ep->debugfs_dma_status); ++err_dma_status: ++ debugfs_remove(ep->debugfs_queue); ++err_queue: ++ debugfs_remove(ep_root); ++err_root: ++ dev_err(&ep->udc->pdev->dev, ++ "failed to create debugfs directory for %s\n", ep_name(ep)); ++} ++ ++static void usba_ep_cleanup_debugfs(struct usba_ep *ep) ++{ ++ debugfs_remove(ep->debugfs_queue); ++ debugfs_remove(ep->debugfs_dma_status); ++ debugfs_remove(ep->debugfs_state); ++ debugfs_remove(ep->debugfs_dir); ++ ep->debugfs_dma_status = NULL; ++ ep->debugfs_dir = NULL; ++} ++ ++static void usba_init_debugfs(struct usba_udc *udc) ++{ ++ struct dentry *root, *regs; ++ struct resource *regs_resource; ++ ++ root = debugfs_create_dir(udc->gadget.name, NULL); ++ if (IS_ERR(root) || !root) ++ goto err_root; ++ udc->debugfs_root = root; ++ ++ regs = debugfs_create_file("regs", 0400, root, udc, ®s_dbg_fops); ++ if (!regs) ++ goto err_regs; ++ ++ regs_resource = platform_get_resource(udc->pdev, IORESOURCE_MEM, ++ CTRL_IOMEM_ID); ++ regs->d_inode->i_size = regs_resource->end - regs_resource->start + 1; ++ udc->debugfs_regs = regs; ++ ++ usba_ep_init_debugfs(udc, to_usba_ep(udc->gadget.ep0)); ++ ++ return; ++ ++err_regs: ++ debugfs_remove(root); ++err_root: ++ udc->debugfs_root = NULL; ++ dev_err(&udc->pdev->dev, "debugfs is not available\n"); ++} ++ ++static void usba_cleanup_debugfs(struct usba_udc *udc) ++{ ++ usba_ep_cleanup_debugfs(to_usba_ep(udc->gadget.ep0)); ++ debugfs_remove(udc->debugfs_regs); ++ debugfs_remove(udc->debugfs_root); ++ udc->debugfs_regs = NULL; ++ udc->debugfs_root = NULL; ++} ++#else ++static inline void usba_ep_init_debugfs(struct usba_udc *udc, ++ struct usba_ep *ep) ++{ ++ ++} ++ ++static inline void usba_ep_cleanup_debugfs(struct usba_ep *ep) ++{ ++ ++} ++ ++static inline void usba_init_debugfs(struct usba_udc *udc) ++{ ++ ++} ++ ++static inline void usba_cleanup_debugfs(struct usba_udc *udc) ++{ ++ ++} ++#endif ++ ++static int vbus_is_present(struct usba_udc *udc) ++{ ++ if (udc->vbus_pin != -1) ++ return gpio_get_value(udc->vbus_pin); ++ ++ /* No Vbus detection: Assume always present */ ++ return 1; ++} ++ ++static void copy_to_fifo(void __iomem *fifo, const void *buf, int len) ++{ ++ unsigned long tmp; ++ ++ DBG(DBG_FIFO, "copy to FIFO (len %d):\n", len); ++ for (; len > 0; len -= 4, buf += 4, fifo += 4) { ++ tmp = *(unsigned long *)buf; ++ if (len >= 4) { ++ DBG(DBG_FIFO, " -> %08lx\n", tmp); ++ __raw_writel(tmp, fifo); ++ } else { ++ do { ++ DBG(DBG_FIFO, " -> %02lx\n", tmp >> 24); ++ __raw_writeb(tmp >> 24, fifo); ++ fifo++; ++ tmp <<= 8; ++ } while (--len); ++ break; ++ } ++ } ++} ++ ++static void copy_from_fifo(void *buf, void __iomem *fifo, int len) ++{ ++ union { ++ unsigned long *w; ++ unsigned char *b; ++ } p; ++ unsigned long tmp; ++ ++ DBG(DBG_FIFO, "copy from FIFO (len %d):\n", len); ++ for (p.w = buf; len > 0; len -= 4, p.w++, fifo += 4) { ++ if (len >= 4) { ++ tmp = __raw_readl(fifo); ++ *p.w = tmp; ++ DBG(DBG_FIFO, " -> %08lx\n", tmp); ++ } else { ++ do { ++ tmp = __raw_readb(fifo); ++ *p.b = tmp; ++ DBG(DBG_FIFO, " -> %02lx\n", tmp); ++ fifo++, p.b++; ++ } while (--len); ++ } ++ } ++} ++ ++static void next_fifo_transaction(struct usba_ep *ep, ++ struct usba_request *req) ++{ ++ unsigned int transaction_len; ++ ++ transaction_len = req->req.length - req->req.actual; ++ req->last_transaction = 1; ++ if (transaction_len > ep->ep.maxpacket) { ++ transaction_len = ep->ep.maxpacket; ++ req->last_transaction = 0; ++ } else if (transaction_len == ep->ep.maxpacket ++ && req->req.zero) { ++ req->last_transaction = 0; ++ } ++ DBG(DBG_QUEUE, "%s: submit_transaction, req %p (length %d)%s\n", ++ ep_name(ep), req, transaction_len, ++ req->last_transaction ? ", done" : ""); ++ ++ copy_to_fifo(ep->fifo, req->req.buf + req->req.actual, transaction_len); ++ usba_ep_writel(ep, SET_STA, USBA_BIT(TX_PK_RDY)); ++ req->req.actual += transaction_len; ++} ++ ++static void submit_request(struct usba_ep *ep, struct usba_request *req) ++{ ++ DBG(DBG_QUEUE, "%s: submit_request: req %p (length %d)\n", ++ ep_name(ep), req, req->req.length); ++ ++ req->req.actual = 0; ++ req->submitted = 1; ++ ++ if (req->using_dma) { ++ if (req->req.length == 0) { ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(TX_PK_RDY)); ++ return; ++ } ++ ++ if (req->req.zero) ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(SHORT_PACKET)); ++ else ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(SHORT_PACKET)); ++ ++ usba_dma_writel(ep, ADDRESS, req->req.dma); ++ usba_dma_writel(ep, CONTROL, req->ctrl); ++ } else { ++ next_fifo_transaction(ep, req); ++ if (req->last_transaction) { ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(TX_PK_RDY)); ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(TX_COMPLETE)); ++ } else { ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(TX_COMPLETE)); ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(TX_PK_RDY)); ++ } ++ } ++} ++ ++static void submit_next_request(struct usba_ep *ep) ++{ ++ struct usba_request *req; ++ ++ if (list_empty(&ep->queue)) { ++ usba_ep_writel(ep, CTL_DIS, (USBA_BIT(TX_PK_RDY) ++ | USBA_BIT(RX_BK_RDY))); ++ return; ++ } ++ ++ req = list_entry(ep->queue.next, struct usba_request, queue); ++ if (!req->submitted) ++ submit_request(ep, req); ++} ++ ++static void send_status(struct usba_udc *udc, struct usba_ep *ep) ++{ ++ ep->state = STATUS_STAGE_IN; ++ usba_ep_writel(ep, SET_STA, USBA_BIT(TX_PK_RDY)); ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(TX_COMPLETE)); ++} ++ ++static void receive_data(struct usba_ep *ep) ++{ ++ struct usba_udc *udc = ep->udc; ++ struct usba_request *req; ++ unsigned long status; ++ unsigned int bytecount, nr_busy; ++ int is_complete = 0; ++ ++ status = usba_ep_readl(ep, STA); ++ nr_busy = USBA_BFEXT(BUSY_BANKS, status); ++ ++ DBG(DBG_QUEUE, "receive data: nr_busy=%u\n", nr_busy); ++ ++ while (nr_busy > 0) { ++ if (list_empty(&ep->queue)) { ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(RX_BK_RDY)); ++ break; ++ } ++ req = list_entry(ep->queue.next, ++ struct usba_request, queue); ++ ++ bytecount = USBA_BFEXT(BYTE_COUNT, status); ++ ++ if (status & (1 << 31)) ++ is_complete = 1; ++ if (req->req.actual + bytecount >= req->req.length) { ++ is_complete = 1; ++ bytecount = req->req.length - req->req.actual; ++ } ++ ++ copy_from_fifo(req->req.buf + req->req.actual, ++ ep->fifo, bytecount); ++ req->req.actual += bytecount; ++ ++ usba_ep_writel(ep, CLR_STA, USBA_BIT(RX_BK_RDY)); ++ ++ if (is_complete) { ++ DBG(DBG_QUEUE, "%s: request done\n", ep_name(ep)); ++ req->req.status = 0; ++ list_del_init(&req->queue); ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(RX_BK_RDY)); ++ req->req.complete(&ep->ep, &req->req); ++ } ++ ++ status = usba_ep_readl(ep, STA); ++ nr_busy = USBA_BFEXT(BUSY_BANKS, status); ++ ++ if (is_complete && ep_is_control(ep)) { ++ send_status(udc, ep); ++ break; ++ } ++ } ++} ++ ++static void request_complete(struct usba_ep *ep, ++ struct usba_request *req, ++ int status) ++{ ++ struct usba_udc *udc = ep->udc; ++ ++ WARN_ON(!list_empty(&req->queue)); ++ ++ if (req->req.status == -EINPROGRESS) ++ req->req.status = status; ++ ++ if (req->mapped) { ++ dma_unmap_single( ++ &udc->pdev->dev, req->req.dma, req->req.length, ++ ep_is_in(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); ++ req->req.dma = DMA_ADDR_INVALID; ++ req->mapped = 0; ++ } ++ ++ DBG(DBG_GADGET | DBG_REQ, ++ "%s: req %p complete: status %d, actual %u\n", ++ ep_name(ep), req, req->req.status, req->req.actual); ++ req->req.complete(&ep->ep, &req->req); ++} ++ ++static void request_complete_list(struct usba_ep *ep, ++ struct list_head *list, ++ int status) ++{ ++ struct usba_request *req, *tmp_req; ++ ++ list_for_each_entry_safe(req, tmp_req, list, queue) { ++ list_del_init(&req->queue); ++ request_complete(ep, req, status); ++ } ++} ++ ++static int usba_ep_enable(struct usb_ep *_ep, ++ const struct usb_endpoint_descriptor *desc) ++{ ++ struct usba_ep *ep = to_usba_ep(_ep); ++ struct usba_udc *udc = ep->udc; ++ unsigned long flags, ept_cfg, maxpacket; ++ ++ DBG(DBG_GADGET, "%s: ep_enable: desc=%p\n", ep_name(ep), desc); ++ ++ maxpacket = le16_to_cpu(desc->wMaxPacketSize); ++ ++ if (ep->index == 0 ++ || desc->bDescriptorType != USB_DT_ENDPOINT ++ || ((desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) ++ != ep->index) ++ || maxpacket == 0 ++ || maxpacket > ep->fifo_size) { ++ DBG(DBG_ERR, "ep_enable: Invalid argument"); ++ return -EINVAL; ++ } ++ ++ ep->is_isoc = 0; ++ ep->is_in = 0; ++ ++ if ((desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ++ == USB_ENDPOINT_XFER_ISOC) { ++ if (!ep->can_isoc) { ++ DBG(DBG_ERR, "ep_enable: %s is not isoc capable\n", ++ ep_name(ep)); ++ return -EINVAL; ++ } ++ ep->is_isoc = 1; ++ } ++ ++ if (maxpacket <= 8) ++ ept_cfg = USBA_BF(EPT_SIZE, USBA_EPT_SIZE_8); ++ else ++ /* LSB is bit 1, not 0 */ ++ ept_cfg = USBA_BF(EPT_SIZE, fls(maxpacket - 1) - 3); ++ DBG(DBG_HW, "%s: EPT_SIZE = %lu (maxpacket = %lu)\n", ++ ep_name(ep), ept_cfg, maxpacket); ++ ++ if ((desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) { ++ ep->is_in = 1; ++ ept_cfg |= USBA_BIT(EPT_DIR); ++ } ++ ++ switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { ++ case USB_ENDPOINT_XFER_CONTROL: ++ ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_CONTROL); ++ break; ++ case USB_ENDPOINT_XFER_ISOC: ++ ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_ISO); ++ break; ++ case USB_ENDPOINT_XFER_BULK: ++ ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_BULK); ++ break; ++ case USB_ENDPOINT_XFER_INT: ++ ept_cfg |= USBA_BF(EPT_TYPE, USBA_EPT_TYPE_INT); ++ break; ++ } ++ ept_cfg |= USBA_BF(BK_NUMBER, ep->nr_banks); ++ ++ spin_lock_irqsave(&ep->udc->lock, flags); ++ ++ if (ep->desc) { ++ spin_unlock_irqrestore(&ep->udc->lock, flags); ++ DBG(DBG_ERR, "ep%d already enabled\n", ep->index); ++ return -EBUSY; ++ } ++ ++ ep->desc = desc; ++ ep->ep.maxpacket = maxpacket; ++ ++ usba_ep_writel(ep, CFG, ept_cfg); ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(EPT_ENABLE)); ++ ++ if (ep_can_dma(ep)) { ++ u32 ctrl; ++ ++ usba_writel(udc, INT_ENB, ++ (usba_readl(udc, INT_ENB) ++ | USBA_BF(EPT_INT, 1 << ep->index) ++ | USBA_BF(DMA_INT, 1 << ep->index))); ++ ctrl = USBA_BIT(AUTO_VALID) | USBA_BIT(INTDIS_DMA); ++ usba_ep_writel(ep, CTL_ENB, ctrl); ++ } else { ++ usba_writel(udc, INT_ENB, ++ (usba_readl(udc, INT_ENB) ++ | USBA_BF(EPT_INT, 1 << ep->index))); ++ } ++ ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ DBG(DBG_HW, "EPT_CFG%d after init: %#08lx\n", ep->index, ++ (unsigned long)usba_ep_readl(ep, CFG)); ++ DBG(DBG_HW, "INT_ENB after init: %#08lx\n", ++ (unsigned long)usba_readl(udc, INT_ENB)); ++ ++ return 0; ++} ++ ++static int usba_ep_disable(struct usb_ep *_ep) ++{ ++ struct usba_ep *ep = to_usba_ep(_ep); ++ struct usba_udc *udc = ep->udc; ++ LIST_HEAD(req_list); ++ unsigned long flags; ++ ++ DBG(DBG_GADGET, "ep_disable: %s\n", ep_name(ep)); ++ ++ spin_lock_irqsave(&udc->lock, flags); ++ ++ if (!ep->desc) { ++ spin_unlock_irqrestore(&udc->lock, flags); ++ DBG(DBG_ERR, "ep_disable: %s not enabled\n", ++ ep_name(ep)); ++ return -EINVAL; ++ } ++ ep->desc = NULL; ++ ++ list_splice_init(&ep->queue, &req_list); ++ if (ep_can_dma(ep)) { ++ usba_dma_writel(ep, CONTROL, 0); ++ usba_dma_writel(ep, ADDRESS, 0); ++ usba_dma_readl(ep, STATUS); ++ } ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(EPT_ENABLE)); ++ usba_writel(udc, INT_ENB, (usba_readl(udc, INT_ENB) ++ & ~USBA_BF(EPT_INT, 1 << ep->index))); ++ ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ request_complete_list(ep, &req_list, -ESHUTDOWN); ++ ++ return 0; ++} ++ ++static struct usb_request * ++usba_ep_alloc_request(struct usb_ep *_ep, unsigned gfp_flags) ++{ ++ struct usba_request *req; ++ ++ DBG(DBG_GADGET, "ep_alloc_request: %p, 0x%x\n", _ep, gfp_flags); ++ ++ req = kzalloc(sizeof(*req), gfp_flags); ++ if (!req) ++ return NULL; ++ ++ INIT_LIST_HEAD(&req->queue); ++ req->req.dma = DMA_ADDR_INVALID; ++ ++ return &req->req; ++} ++ ++static void ++usba_ep_free_request(struct usb_ep *_ep, struct usb_request *_req) ++{ ++ struct usba_request *req = to_usba_req(_req); ++ ++ DBG(DBG_GADGET, "ep_free_request: %p, %p\n", _ep, _req); ++ ++ kfree(req); ++} ++ ++static void *usba_ep_alloc_buffer(struct usb_ep *_ep, unsigned bytes, ++ dma_addr_t *dma, unsigned gfp_flags) ++{ ++ void *buf; ++ ++ if (bytes < L1_CACHE_BYTES) ++ bytes = L1_CACHE_BYTES; ++ ++ buf = kmalloc(bytes, gfp_flags); ++ ++ /* ++ * Seems like we have to map the buffer any chance we get. ++ * ether.c wants us to initialize the dma member of a ++ * different request than the one receiving the buffer, so one ++ * never knows... ++ * ++ * Ah, screw it. The ether driver is probably wrong, and this ++ * is not the right place to do the mapping. The driver ++ * shouldn't mess with our DMA mappings anyway. ++ */ ++ *dma = DMA_ADDR_INVALID; ++ ++ return buf; ++} ++ ++static void usba_ep_free_buffer(struct usb_ep *_ep, void *buf, ++ dma_addr_t dma, unsigned bytes) ++{ ++ DBG(DBG_GADGET, "ep_free_buffer: %s, buf %p (size %u)\n", ++ _ep->name, buf, bytes); ++ kfree(buf); ++} ++ ++static int queue_dma(struct usba_udc *udc, struct usba_ep *ep, ++ struct usba_request *req, gfp_t gfp_flags) ++{ ++ unsigned long flags; ++ int ret; ++ ++ DBG(DBG_DMA, "%s: req l/%u d/%08x %c%c%c\n", ++ ep_name(ep), req->req.length, req->req.dma, ++ req->req.zero ? 'Z' : 'z', ++ req->req.short_not_ok ? 'S' : 's', ++ req->req.no_interrupt ? 'I' : 'i'); ++ ++ if (req->req.length > 0x10000) { ++ /* Lengths from 0 to 65536 (inclusive) are supported */ ++ DBG(DBG_ERR, "invalid request length %u\n", req->req.length); ++ return -EINVAL; ++ } ++ ++ req->using_dma = 1; ++ ++ if (req->req.dma == DMA_ADDR_INVALID) { ++ req->req.dma = dma_map_single( ++ &udc->pdev->dev, req->req.buf, req->req.length, ++ ep_is_in(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); ++ req->mapped = 1; ++ } else { ++ dma_sync_single_for_device( ++ &udc->pdev->dev, req->req.dma, req->req.length, ++ ep_is_in(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); ++ req->mapped = 0; ++ } ++ ++ req->ctrl = (USBA_BF(DMA_BUF_LEN, req->req.length) ++ | USBA_BIT(DMA_CH_EN) | USBA_BIT(DMA_END_BUF_IE) ++ | USBA_BIT(DMA_END_TR_EN) | USBA_BIT(DMA_END_TR_IE)); ++ ++ if (ep_is_in(ep)) ++ req->ctrl |= USBA_BIT(DMA_END_BUF_EN); ++ ++ /* ++ * Add this request to the queue and submit for DMA if ++ * possible. Check if we're still alive first -- we may have ++ * received a reset since last time we checked. ++ */ ++ ret = -ESHUTDOWN; ++ spin_lock_irqsave(&udc->lock, flags); ++ if (ep->desc) { ++ if (list_empty(&ep->queue)) ++ submit_request(ep, req); ++ ++ list_add_tail(&req->queue, &ep->queue); ++ ret = 0; ++ } ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ return ret; ++} ++ ++static int usba_ep_queue(struct usb_ep *_ep, struct usb_request *_req, ++ gfp_t gfp_flags) ++{ ++ struct usba_request *req = to_usba_req(_req); ++ struct usba_ep *ep = to_usba_ep(_ep); ++ struct usba_udc *udc = ep->udc; ++ unsigned long flags; ++ int ret; ++ ++ DBG(DBG_GADGET | DBG_QUEUE | DBG_REQ, ++ "%s: queue req %p, len %u\n", ep_name(ep), req, _req->length); ++ ++ if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN ++ || !ep->desc) ++ return -ESHUTDOWN; ++ ++ req->submitted = 0; ++ req->using_dma = 0; ++ req->last_transaction = 0; ++ ++ _req->status = -EINPROGRESS; ++ _req->actual = 0; ++ ++ if (ep_can_dma(ep)) ++ return queue_dma(udc, ep, req, gfp_flags); ++ ++ /* May have received a reset since last time we checked */ ++ ret = -ESHUTDOWN; ++ spin_lock_irqsave(&udc->lock, flags); ++ if (ep->desc) { ++ list_add_tail(&req->queue, &ep->queue); ++ ++ if (ep_is_in(ep) ++ || (ep_is_control(ep) ++ && (ep->state == DATA_STAGE_IN ++ || ep->state == STATUS_STAGE_IN))) ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(TX_PK_RDY)); ++ else ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(RX_BK_RDY)); ++ ret = 0; ++ } ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ return ret; ++} ++ ++static void usba_update_req(struct usba_ep *ep, struct usba_request *req, ++ u32 status) ++{ ++ req->req.actual = req->req.length - USBA_BFEXT(DMA_BUF_LEN, status); ++} ++ ++static int stop_dma(struct usba_ep *ep, u32 *pstatus) ++{ ++ unsigned int timeout; ++ u32 status; ++ ++ /* ++ * Stop the DMA controller. When writing both CH_EN ++ * and LINK to 0, the other bits are not affected. ++ */ ++ usba_dma_writel(ep, CONTROL, 0); ++ ++ /* Wait for the FIFO to empty */ ++ for (timeout = 40; timeout; --timeout) { ++ status = usba_dma_readl(ep, STATUS); ++ if (!(status & USBA_BIT(DMA_CH_EN))) ++ break; ++ udelay(1); ++ } ++ ++ if (pstatus) ++ *pstatus = status; ++ ++ if (timeout == 0) { ++ dev_err(&ep->udc->pdev->dev, ++ "%s: timed out waiting for DMA FIFO to empty\n", ++ ep_name(ep)); ++ return -ETIMEDOUT; ++ } ++ ++ return 0; ++} ++ ++static int usba_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) ++{ ++ struct usba_ep *ep = to_usba_ep(_ep); ++ struct usba_udc *udc = ep->udc; ++ struct usba_request *req = to_usba_req(_req); ++ unsigned long flags; ++ u32 status; ++ ++ DBG(DBG_GADGET | DBG_QUEUE, "ep_dequeue: %s, req %p\n", ++ ep_name(ep), req); ++ ++ spin_lock_irqsave(&udc->lock, flags); ++ ++ if (req->using_dma) { ++ /* ++ * If this request is currently being transferred, ++ * stop the DMA controller and reset the FIFO. ++ */ ++ if (ep->queue.next == &req->queue) { ++ status = usba_dma_readl(ep, STATUS); ++ if (status & USBA_BIT(DMA_CH_EN)) ++ stop_dma(ep, &status); ++ ++#ifdef CONFIG_DEBUG_FS ++ ep->last_dma_status = status; ++#endif ++ ++ usba_writel(udc, EPT_RST, ++ 1 << ep_index(ep)); ++ ++ usba_update_req(ep, req, status); ++ } ++ } ++ ++ /* ++ * Errors should stop the queue from advancing until the ++ * completion function returns. ++ */ ++ list_del_init(&req->queue); ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ request_complete(ep, req, -ECONNRESET); ++ ++ /* Process the next request if any */ ++ spin_lock_irqsave(&udc->lock, flags); ++ submit_next_request(ep); ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ return 0; ++} ++ ++static int usba_ep_set_halt(struct usb_ep *_ep, int value) ++{ ++ struct usba_ep *ep = to_usba_ep(_ep); ++ struct usba_udc *udc = ep->udc; ++ unsigned long flags; ++ int ret = 0; ++ ++ DBG(DBG_GADGET, "endpoint %s: %s HALT\n", ep_name(ep), ++ value ? "set" : "clear"); ++ ++ if (!ep->desc) { ++ DBG(DBG_ERR, "Attempted to halt uninitialized ep %s\n", ++ ep_name(ep)); ++ return -ENODEV; ++ } ++ if (ep_is_isochronous(ep)) { ++ DBG(DBG_ERR, "Attempted to halt isochronous ep %s\n", ++ ep_name(ep)); ++ return -ENOTTY; ++ } ++ ++ spin_lock_irqsave(&udc->lock, flags); ++ ++ /* ++ * We can't halt IN endpoints while there are still data to be ++ * transferred ++ */ ++ if (!list_empty(&ep->queue) ++ || ((value && ep_is_in(ep) ++ && (usba_ep_readl(ep, STA) ++ & USBA_BF(BUSY_BANKS, -1L))))) { ++ ret = -EAGAIN; ++ } else { ++ if (value) ++ usba_ep_writel(ep, SET_STA, USBA_BIT(FORCE_STALL)); ++ else ++ usba_ep_writel(ep, CLR_STA, (USBA_BIT(FORCE_STALL) ++ | USBA_BIT(TOGGLE_SEQ))); ++ usba_ep_readl(ep, STA); ++ } ++ ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ return ret; ++} ++ ++static int usba_ep_fifo_status(struct usb_ep *_ep) ++{ ++ struct usba_ep *ep = to_usba_ep(_ep); ++ ++ return USBA_BFEXT(BYTE_COUNT, usba_ep_readl(ep, STA)); ++} ++ ++static void usba_ep_fifo_flush(struct usb_ep *_ep) ++{ ++ struct usba_ep *ep = to_usba_ep(_ep); ++ struct usba_udc *udc = ep->udc; ++ ++ usba_writel(udc, EPT_RST, 1 << ep->index); ++} ++ ++struct usb_ep_ops usba_ep_ops = { ++ .enable = usba_ep_enable, ++ .disable = usba_ep_disable, ++ .alloc_request = usba_ep_alloc_request, ++ .free_request = usba_ep_free_request, ++ .alloc_buffer = usba_ep_alloc_buffer, ++ .free_buffer = usba_ep_free_buffer, ++ .queue = usba_ep_queue, ++ .dequeue = usba_ep_dequeue, ++ .set_halt = usba_ep_set_halt, ++ .fifo_status = usba_ep_fifo_status, ++ .fifo_flush = usba_ep_fifo_flush, ++}; ++ ++static int usba_udc_get_frame(struct usb_gadget *gadget) ++{ ++ struct usba_udc *udc = to_usba_udc(gadget); ++ ++ return USBA_BFEXT(FRAME_NUMBER, usba_readl(udc, FNUM)); ++} ++ ++struct usb_gadget_ops usba_udc_ops = { ++ .get_frame = usba_udc_get_frame, ++}; ++ ++#define EP(nam, type, idx, dma, isoc) \ ++{ \ ++ .ep = { \ ++ .ops = &usba_ep_ops, \ ++ .name = nam, \ ++ .maxpacket = type##_FIFO_SIZE, \ ++ }, \ ++ .udc = &the_udc, \ ++ .queue = LIST_HEAD_INIT(usba_ep[idx].queue), \ ++ .fifo_size = type##_FIFO_SIZE, \ ++ .nr_banks = type##_NR_BANKS, \ ++ .index = idx, \ ++ .can_dma = dma, \ ++ .can_isoc = isoc, \ ++} ++ ++static struct usba_ep usba_ep[] = { ++ EP("ep0", EP0, 0, 0, 0), ++ EP("ep1in-bulk", BULK, 1, 1, 0), ++ EP("ep2out-bulk", BULK, 2, 1, 0), ++ EP("ep3in-iso", ISO, 3, 1, 1), ++ EP("ep4out-iso", ISO, 4, 1, 1), ++ EP("ep5in-int", INT, 5, 1, 0), ++ EP("ep6out-int", INT, 6, 1, 0), ++}; ++#undef EP ++ ++static struct usb_endpoint_descriptor usba_ep0_desc = { ++ .bLength = USB_DT_ENDPOINT_SIZE, ++ .bDescriptorType = USB_DT_ENDPOINT, ++ .bEndpointAddress = 0, ++ .bmAttributes = USB_ENDPOINT_XFER_CONTROL, ++ .wMaxPacketSize = __constant_cpu_to_le16(64), ++ /* FIXME: I have no idea what to put here */ ++ .bInterval = 1, ++}; ++ ++static void nop_release(struct device *dev) ++{ ++ ++} ++ ++static struct usba_udc the_udc = { ++ .gadget = { ++ .ops = &usba_udc_ops, ++ .ep0 = &usba_ep[0].ep, ++ .ep_list = LIST_HEAD_INIT(the_udc.gadget.ep_list), ++ .is_dualspeed = 1, ++ .name = "atmel_usba_udc", ++ .dev = { ++ .bus_id = "gadget", ++ .release = nop_release, ++ }, ++ }, ++ ++ .lock = SPIN_LOCK_UNLOCKED, ++}; ++ ++/* ++ * Called with interrupts disabled and udc->lock held. ++ */ ++static void reset_all_endpoints(struct usba_udc *udc) ++{ ++ struct usba_ep *ep; ++ struct usba_request *req, *tmp_req; ++ ++ usba_writel(udc, EPT_RST, ~0UL); ++ ++ ep = to_usba_ep(udc->gadget.ep0); ++ list_for_each_entry_safe(req, tmp_req, &ep->queue, queue) { ++ list_del_init(&req->queue); ++ request_complete(ep, req, -ECONNRESET); ++ } ++ ++ list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) { ++ if (ep->desc) ++ usba_ep_disable(&ep->ep); ++ } ++} ++ ++static struct usba_ep *get_ep_by_addr(struct usba_udc *udc, u16 wIndex) ++{ ++ struct usba_ep *ep; ++ ++ if ((wIndex & USB_ENDPOINT_NUMBER_MASK) == 0) ++ return to_usba_ep(udc->gadget.ep0); ++ ++ list_for_each_entry (ep, &udc->gadget.ep_list, ep.ep_list) { ++ u8 bEndpointAddress; ++ ++ if (!ep->desc) ++ continue; ++ bEndpointAddress = ep->desc->bEndpointAddress; ++ if ((wIndex ^ bEndpointAddress) & USB_DIR_IN) ++ continue; ++ if ((wIndex & USB_ENDPOINT_NUMBER_MASK) ++ == (bEndpointAddress & USB_ENDPOINT_NUMBER_MASK)) ++ return ep; ++ } ++ ++ return NULL; ++} ++ ++/* Called with interrupts disabled and udc->lock held */ ++static inline void set_protocol_stall(struct usba_udc *udc, ++ struct usba_ep *ep) ++{ ++ usba_ep_writel(ep, SET_STA, USBA_BIT(FORCE_STALL)); ++ ep->state = WAIT_FOR_SETUP; ++} ++ ++static inline int is_stalled(struct usba_udc *udc, struct usba_ep *ep) ++{ ++ if (usba_ep_readl(ep, STA) & USBA_BIT(FORCE_STALL)) ++ return 1; ++ return 0; ++} ++ ++static inline void set_address(struct usba_udc *udc, unsigned int addr) ++{ ++ u32 regval; ++ ++ DBG(DBG_BUS, "setting address %u...\n", addr); ++ regval = usba_readl(udc, CTRL); ++ regval = USBA_BFINS(DEV_ADDR, addr, regval); ++ usba_writel(udc, CTRL, regval); ++} ++ ++static int do_test_mode(struct usba_udc *udc) ++{ ++ static const char test_packet_buffer[] = { ++ /* JKJKJKJK * 9 */ ++ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ++ /* JJKKJJKK * 8 */ ++ 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, ++ /* JJKKJJKK * 8 */ ++ 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, ++ /* JJJJJJJKKKKKKK * 8 */ ++ 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, ++ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, ++ /* JJJJJJJK * 8 */ ++ 0x7F, 0xBF, 0xDF, 0xEF, 0xF7, 0xFB, 0xFD, ++ /* {JKKKKKKK * 10}, JK */ ++ 0xFC, 0x7E, 0xBF, 0xDF, 0xEF, 0xF7, 0xFB, 0xFD, 0x7E ++ }; ++ struct device *dev = &udc->pdev->dev; ++ struct usba_ep *ep; ++ int test_mode; ++ ++ test_mode = udc->test_mode; ++ ++ /* Start from a clean slate */ ++ reset_all_endpoints(udc); ++ ++ switch (test_mode) { ++ case 0x0100: ++ /* Test_J */ ++ usba_writel(udc, TST, USBA_BIT(TST_J_MODE)); ++ dev_info(dev, "Entering Test_J mode...\n"); ++ break; ++ case 0x0200: ++ /* Test_K */ ++ usba_writel(udc, TST, USBA_BIT(TST_K_MODE)); ++ dev_info(dev, "Entering Test_K mode...\n"); ++ break; ++ case 0x0300: ++ /* ++ * Test_SE0_NAK: Force high-speed mode and set up ep0 ++ * for Bulk IN transfers ++ */ ++ ep = &usba_ep[0]; ++ usba_writel(udc, TST, ++ USBA_BF(SPEED_CFG, USBA_SPEED_CFG_FORCE_HIGH)); ++ usba_ep_writel(ep, CFG, ++ USBA_BF(EPT_SIZE, USBA_EPT_SIZE_64) ++ | USBA_BIT(EPT_DIR) ++ | USBA_BF(EPT_TYPE, USBA_EPT_TYPE_BULK) ++ | USBA_BF(BK_NUMBER, 1)); ++ if (!(usba_ep_readl(ep, CFG) & USBA_BIT(EPT_MAPPED))) { ++ set_protocol_stall(udc, ep); ++ dev_err(dev, "Test_SE0_NAK: ep0 not mapped\n"); ++ } else { ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(EPT_ENABLE)); ++ dev_info(dev, "Entering Test_SE0_NAK mode...\n"); ++ } ++ break; ++ case 0x0400: ++ /* Test_Packet */ ++ ep = &usba_ep[0]; ++ usba_ep_writel(ep, CFG, ++ USBA_BF(EPT_SIZE, USBA_EPT_SIZE_64) ++ | USBA_BIT(EPT_DIR) ++ | USBA_BF(EPT_TYPE, USBA_EPT_TYPE_BULK) ++ | USBA_BF(BK_NUMBER, 1)); ++ if (!(usba_ep_readl(ep, CFG) & USBA_BIT(EPT_MAPPED))) { ++ set_protocol_stall(udc, ep); ++ dev_err(dev, "Test_Packet: ep0 not mapped\n"); ++ } else { ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(EPT_ENABLE)); ++ usba_writel(udc, TST, USBA_BIT(TST_PKT_MODE)); ++ copy_to_fifo(ep->fifo, test_packet_buffer, ++ sizeof(test_packet_buffer)); ++ usba_ep_writel(ep, SET_STA, USBA_BIT(TX_PK_RDY)); ++ dev_info(dev, "Entering Test_Packet mode...\n"); ++ } ++ break; ++ default: ++ dev_err(dev, "Invalid test mode: 0x%04x\n", test_mode); ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++/* Avoid overly long expressions */ ++static inline bool feature_is_dev_remote_wakeup(struct usb_ctrlrequest *crq) ++{ ++ if (crq->wValue == __constant_cpu_to_le16(USB_DEVICE_REMOTE_WAKEUP)) ++ return true; ++ return false; ++} ++ ++static inline bool feature_is_dev_test_mode(struct usb_ctrlrequest *crq) ++{ ++ if (crq->wValue == __constant_cpu_to_le16(USB_DEVICE_TEST_MODE)) ++ return true; ++ return false; ++} ++ ++static inline bool feature_is_ep_halt(struct usb_ctrlrequest *crq) ++{ ++ if (crq->wValue == __constant_cpu_to_le16(USB_ENDPOINT_HALT)) ++ return true; ++ return false; ++} ++ ++static int handle_ep0_setup(struct usba_udc *udc, struct usba_ep *ep, ++ struct usb_ctrlrequest *crq) ++{ ++ switch (crq->bRequest) { ++ case USB_REQ_GET_STATUS: { ++ u16 status; ++ ++ if (crq->bRequestType == (USB_DIR_IN | USB_RECIP_DEVICE)) { ++ /* Self-powered, no remote wakeup */ ++ status = __constant_cpu_to_le16(1 << 0); ++ } else if (crq->bRequestType ++ == (USB_DIR_IN | USB_RECIP_INTERFACE)) { ++ status = __constant_cpu_to_le16(0); ++ } else if (crq->bRequestType ++ == (USB_DIR_IN | USB_RECIP_ENDPOINT)) { ++ struct usba_ep *target; ++ ++ target = get_ep_by_addr(udc, le16_to_cpu(crq->wIndex)); ++ if (!target) ++ goto stall; ++ ++ status = 0; ++ if (is_stalled(udc, target)) ++ status |= __constant_cpu_to_le16(1); ++ } else { ++ goto delegate; ++ } ++ ++ /* Write directly to the FIFO. No queueing is done. */ ++ if (crq->wLength != __constant_cpu_to_le16(sizeof(status))) ++ goto stall; ++ ep->state = DATA_STAGE_IN; ++ __raw_writew(status, ep->fifo); ++ usba_ep_writel(ep, SET_STA, USBA_BIT(TX_PK_RDY)); ++ break; ++ } ++ ++ case USB_REQ_CLEAR_FEATURE: { ++ if (crq->bRequestType == USB_RECIP_DEVICE) { ++ if (feature_is_dev_remote_wakeup(crq)) { ++ /* TODO: Handle REMOTE_WAKEUP */ ++ } else { ++ /* Can't CLEAR_FEATURE TEST_MODE */ ++ goto stall; ++ } ++ } else if (crq->bRequestType == USB_RECIP_ENDPOINT) { ++ struct usba_ep *target; ++ ++ if (!feature_is_ep_halt(crq) ++ || crq->wLength != __constant_cpu_to_le16(0)) ++ goto stall; ++ target = get_ep_by_addr(udc, le16_to_cpu(crq->wIndex)); ++ if (!target) ++ goto stall; ++ ++ usba_ep_writel(target, CLR_STA, ++ (USBA_BIT(FORCE_STALL) ++ | USBA_BIT(TOGGLE_SEQ))); ++ } else { ++ goto delegate; ++ } ++ ++ send_status(udc, ep); ++ break; ++ } ++ ++ case USB_REQ_SET_FEATURE: { ++ if (crq->bRequestType == USB_RECIP_DEVICE) { ++ if (feature_is_dev_test_mode(crq)) { ++ send_status(udc, ep); ++ ep->state = STATUS_STAGE_TEST; ++ udc->test_mode = le16_to_cpu(crq->wIndex); ++ return 0; ++ } else if (feature_is_dev_remote_wakeup(crq)) { ++ /* TODO: Handle REMOTE_WAKEUP */ ++ } else { ++ goto stall; ++ } ++ } else if (crq->bRequestType == USB_RECIP_ENDPOINT) { ++ struct usba_ep *target; ++ ++ if (!feature_is_ep_halt(crq) ++ || crq->wLength != __constant_cpu_to_le16(0)) ++ goto stall; ++ ++ target = get_ep_by_addr(udc, le16_to_cpu(crq->wIndex)); ++ if (!target) ++ goto stall; ++ ++ usba_ep_writel(target, SET_STA, USBA_BIT(FORCE_STALL)); ++ } else ++ goto delegate; ++ ++ send_status(udc, ep); ++ break; ++ } ++ ++ case USB_REQ_SET_ADDRESS: ++ if (crq->bRequestType != (USB_DIR_OUT | USB_RECIP_DEVICE)) ++ goto delegate; ++ ++ set_address(udc, le16_to_cpu(crq->wValue)); ++ send_status(udc, ep); ++ ep->state = STATUS_STAGE_ADDR; ++ break; ++ ++ default: ++delegate: ++ return udc->driver->setup(&udc->gadget, crq); ++ } ++ ++ return 0; ++ ++stall: ++ printk(KERN_ERR ++ "udc: %s: Invalid setup request: %02x.%02x v%04x i%04x l%d, " ++ "halting endpoint...\n", ++ ep_name(ep), crq->bRequestType, crq->bRequest, ++ le16_to_cpu(crq->wValue), le16_to_cpu(crq->wIndex), ++ le16_to_cpu(crq->wLength)); ++ set_protocol_stall(udc, ep); ++ return -1; ++} ++ ++static void usba_control_irq(struct usba_udc *udc, struct usba_ep *ep) ++{ ++ struct usba_request *req; ++ u32 epstatus; ++ u32 epctrl; ++ ++restart: ++ epstatus = usba_ep_readl(ep, STA); ++ epctrl = usba_ep_readl(ep, CTL); ++ ++ DBG(DBG_INT, "%s [%d]: s/%08x c/%08x\n", ++ ep_name(ep), ep->state, epstatus, epctrl); ++ ++ req = NULL; ++ if (!list_empty(&ep->queue)) ++ req = list_entry(ep->queue.next, ++ struct usba_request, queue); ++ ++ if ((epctrl & USBA_BIT(TX_PK_RDY)) ++ && !(epstatus & USBA_BIT(TX_PK_RDY))) { ++ if (req->submitted) ++ next_fifo_transaction(ep, req); ++ else ++ submit_request(ep, req); ++ ++ if (req->last_transaction) { ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(TX_PK_RDY)); ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(TX_COMPLETE)); ++ } ++ goto restart; ++ } ++ if ((epstatus & epctrl) & USBA_BIT(TX_COMPLETE)) { ++ usba_ep_writel(ep, CLR_STA, USBA_BIT(TX_COMPLETE)); ++ ++ switch (ep->state) { ++ case DATA_STAGE_IN: ++ usba_ep_writel(ep, CTL_ENB, USBA_BIT(RX_BK_RDY)); ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(TX_COMPLETE)); ++ ep->state = STATUS_STAGE_OUT; ++ break; ++ case STATUS_STAGE_ADDR: ++ /* Activate our new address */ ++ usba_writel(udc, CTRL, (usba_readl(udc, CTRL) ++ | USBA_BIT(FADDR_EN))); ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(TX_COMPLETE)); ++ ep->state = WAIT_FOR_SETUP; ++ break; ++ case STATUS_STAGE_IN: ++ if (req) { ++ list_del_init(&req->queue); ++ request_complete(ep, req, 0); ++ submit_next_request(ep); ++ } ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(TX_COMPLETE)); ++ ep->state = WAIT_FOR_SETUP; ++ break; ++ case STATUS_STAGE_TEST: ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(TX_COMPLETE)); ++ ep->state = WAIT_FOR_SETUP; ++ if (do_test_mode(udc)) ++ set_protocol_stall(udc, ep); ++ break; ++ default: ++ printk(KERN_ERR ++ "udc: %s: TXCOMP: Invalid endpoint state %d, " ++ "halting endpoint...\n", ++ ep_name(ep), ep->state); ++ set_protocol_stall(udc, ep); ++ break; ++ } ++ ++ goto restart; ++ } ++ if ((epstatus & epctrl) & USBA_BIT(RX_BK_RDY)) { ++ switch (ep->state) { ++ case STATUS_STAGE_OUT: ++ usba_ep_writel(ep, CLR_STA, USBA_BIT(RX_BK_RDY)); ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(RX_BK_RDY)); ++ ++ if (req) { ++ list_del_init(&req->queue); ++ request_complete(ep, req, 0); ++ } ++ ep->state = WAIT_FOR_SETUP; ++ break; ++ ++ case DATA_STAGE_OUT: ++ receive_data(ep); ++ break; ++ ++ default: ++ usba_ep_writel(ep, CLR_STA, USBA_BIT(RX_BK_RDY)); ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(RX_BK_RDY)); ++ printk(KERN_ERR ++ "udc: %s: RXRDY: Invalid endpoint state %d, " ++ "halting endpoint...\n", ++ ep_name(ep), ep->state); ++ set_protocol_stall(udc, ep); ++ break; ++ } ++ ++ goto restart; ++ } ++ if (epstatus & USBA_BIT(RX_SETUP)) { ++ union { ++ struct usb_ctrlrequest crq; ++ unsigned long data[2]; ++ } crq; ++ unsigned int pkt_len; ++ int ret; ++ ++ if (ep->state != WAIT_FOR_SETUP) { ++ /* ++ * Didn't expect a SETUP packet at this ++ * point. Clean up any pending requests (which ++ * may be successful). ++ */ ++ int status = -EPROTO; ++ ++ /* ++ * RXRDY and TXCOMP are dropped when SETUP ++ * packets arrive. Just pretend we received ++ * the status packet. ++ */ ++ if (ep->state == STATUS_STAGE_OUT ++ || ep->state == STATUS_STAGE_IN) { ++ usba_ep_writel(ep, CTL_DIS, ++ USBA_BIT(RX_BK_RDY)); ++ status = 0; ++ } ++ ++ if (req) { ++ list_del_init(&req->queue); ++ request_complete(ep, req, status); ++ } ++ } ++ ++ pkt_len = USBA_BFEXT(BYTE_COUNT, usba_ep_readl(ep, STA)); ++ DBG(DBG_HW, "Packet length: %u\n", pkt_len); ++ if (pkt_len != sizeof(crq)) { ++ printk(KERN_WARNING ++ "udc: Invalid packet length %u (expected %lu)\n", ++ pkt_len, sizeof(crq)); ++ set_protocol_stall(udc, ep); ++ return; ++ } ++ ++ DBG(DBG_FIFO, "Copying ctrl request from 0x%p:\n", ep->fifo); ++ copy_from_fifo(crq.data, ep->fifo, sizeof(crq)); ++ ++ /* Free up one bank in the FIFO so that we can ++ * generate or receive a reply right away. */ ++ usba_ep_writel(ep, CLR_STA, USBA_BIT(RX_SETUP)); ++ ++ /* printk(KERN_DEBUG "setup: %d: %02x.%02x\n", ++ ep->state, crq.crq.bRequestType, ++ crq.crq.bRequest); */ ++ ++ if (crq.crq.bRequestType & USB_DIR_IN) { ++ /* ++ * The USB 2.0 spec states that "if wLength is ++ * zero, there is no data transfer phase." ++ * However, testusb #14 seems to actually ++ * expect a data phase even if wLength = 0... ++ */ ++ ep->state = DATA_STAGE_IN; ++ } else { ++ if (crq.crq.wLength != __constant_cpu_to_le16(0)) ++ ep->state = DATA_STAGE_OUT; ++ else ++ ep->state = STATUS_STAGE_IN; ++ } ++ ++ ret = -1; ++ if (ep->index == 0) ++ ret = handle_ep0_setup(udc, ep, &crq.crq); ++ else ++ ret = udc->driver->setup(&udc->gadget, &crq.crq); ++ ++ DBG(DBG_BUS, "req %02x.%02x, length %d, state %d, ret %d\n", ++ crq.crq.bRequestType, crq.crq.bRequest, ++ le16_to_cpu(crq.crq.wLength), ep->state, ret); ++ ++ if (ret < 0) { ++ /* Let the host know that we failed */ ++ set_protocol_stall(udc, ep); ++ } ++ } ++} ++ ++static void usba_ep_irq(struct usba_udc *udc, struct usba_ep *ep) ++{ ++ struct usba_request *req; ++ u32 epstatus; ++ u32 epctrl; ++ ++ epstatus = usba_ep_readl(ep, STA); ++ epctrl = usba_ep_readl(ep, CTL); ++ ++ DBG(DBG_INT, "%s: interrupt, status: 0x%08x\n", ++ ep_name(ep), epstatus); ++ ++ while ((epctrl & USBA_BIT(TX_PK_RDY)) ++ && !(epstatus & USBA_BIT(TX_PK_RDY))) { ++ DBG(DBG_BUS, "%s: TX PK ready\n", ep_name(ep)); ++ ++ if (list_empty(&ep->queue)) { ++ dev_warn(&udc->pdev->dev, "ep_irq: queue empty\n"); ++ usba_ep_writel(ep, CTL_DIS, USBA_BIT(TX_PK_RDY)); ++ return; ++ } ++ ++ req = list_entry(ep->queue.next, struct usba_request, queue); ++ ++ if (req->using_dma) { ++ /* Send a zero-length packet */ ++ usba_ep_writel(ep, SET_STA, ++ USBA_BIT(TX_PK_RDY)); ++ usba_ep_writel(ep, CTL_DIS, ++ USBA_BIT(TX_PK_RDY)); ++ list_del_init(&req->queue); ++ submit_next_request(ep); ++ request_complete(ep, req, 0); ++ } else { ++ if (req->submitted) ++ next_fifo_transaction(ep, req); ++ else ++ submit_request(ep, req); ++ ++ if (req->last_transaction) { ++ list_del_init(&req->queue); ++ submit_next_request(ep); ++ request_complete(ep, req, 0); ++ } ++ } ++ ++ epstatus = usba_ep_readl(ep, STA); ++ epctrl = usba_ep_readl(ep, CTL); ++ } ++ if ((epstatus & epctrl) & USBA_BIT(RX_BK_RDY)) { ++ DBG(DBG_BUS, "%s: RX data ready\n", ep_name(ep)); ++ receive_data(ep); ++ usba_ep_writel(ep, CLR_STA, USBA_BIT(RX_BK_RDY)); ++ } ++} ++ ++static void usba_dma_irq(struct usba_udc *udc, struct usba_ep *ep) ++{ ++ struct usba_request *req; ++ u32 status, control, pending; ++ ++ status = usba_dma_readl(ep, STATUS); ++ control = usba_dma_readl(ep, CONTROL); ++#ifdef CONFIG_DEBUG_FS ++ ep->last_dma_status = status; ++#endif ++ pending = status & control; ++ DBG(DBG_INT | DBG_DMA, "dma irq, s/%#08x, c/%#08x\n", ++ status, control); ++ ++ if (status & USBA_BIT(DMA_CH_EN)) { ++ dev_err(&udc->pdev->dev, ++ "DMA_CH_EN is set after transfer is finished!\n"); ++ dev_err(&udc->pdev->dev, ++ "status=%#08x, pending=%#08x, control=%#08x\n", ++ status, pending, control); ++ ++ /* ++ * try to pretend nothing happened. We might have to ++ * do something here... ++ */ ++ } ++ ++ if (list_empty(&ep->queue)) ++ /* Might happen if a reset comes along at the right moment */ ++ return; ++ ++ if (pending & (USBA_BIT(DMA_END_TR_ST) | USBA_BIT(DMA_END_BUF_ST))) { ++ req = list_entry(ep->queue.next, struct usba_request, queue); ++ usba_update_req(ep, req, status); ++ ++ list_del_init(&req->queue); ++ submit_next_request(ep); ++ request_complete(ep, req, 0); ++ } ++} ++ ++static irqreturn_t usba_udc_irq(int irq, void *devid) ++{ ++ struct usba_udc *udc = devid; ++ u32 status; ++ u32 dma_status; ++ u32 ep_status; ++ ++ spin_lock(&udc->lock); ++ ++ status = usba_readl(udc, INT_STA); ++ DBG(DBG_INT, "irq, status=%#08x\n", status); ++ ++ if (status & USBA_BIT(DET_SUSPEND)) { ++ usba_writel(udc, INT_CLR, USBA_BIT(DET_SUSPEND)); ++ DBG(DBG_BUS, "Suspend detected\n"); ++ if (udc->gadget.speed != USB_SPEED_UNKNOWN ++ && udc->driver && udc->driver->suspend) ++ udc->driver->suspend(&udc->gadget); ++ } ++ ++ if (status & USBA_BIT(WAKE_UP)) { ++ usba_writel(udc, INT_CLR, USBA_BIT(WAKE_UP)); ++ DBG(DBG_BUS, "Wake Up CPU detected\n"); ++ } ++ ++ if (status & USBA_BIT(END_OF_RESUME)) { ++ usba_writel(udc, INT_CLR, USBA_BIT(END_OF_RESUME)); ++ DBG(DBG_BUS, "Resume detected\n"); ++ if (udc->gadget.speed != USB_SPEED_UNKNOWN ++ && udc->driver && udc->driver->resume) ++ udc->driver->resume(&udc->gadget); ++ } ++ ++ dma_status = USBA_BFEXT(DMA_INT, status); ++ if (dma_status) { ++ int i; ++ ++ for (i = 1; i < USBA_NR_ENDPOINTS; i++) ++ if (dma_status & (1 << i)) ++ usba_dma_irq(udc, &usba_ep[i]); ++ } ++ ++ ep_status = USBA_BFEXT(EPT_INT, status); ++ if (ep_status) { ++ int i; ++ ++ for (i = 0; i < USBA_NR_ENDPOINTS; i++) ++ if (ep_status & (1 << i)) { ++ if (ep_is_control(&usba_ep[i])) ++ usba_control_irq(udc, &usba_ep[i]); ++ else ++ usba_ep_irq(udc, &usba_ep[i]); ++ } ++ } ++ ++ if (status & USBA_BIT(END_OF_RESET)) { ++ struct usba_ep *ep0; ++ ++ usba_writel(udc, INT_CLR, USBA_BIT(END_OF_RESET)); ++ reset_all_endpoints(udc); ++ ++ if (status & USBA_BIT(HIGH_SPEED)) { ++ DBG(DBG_BUS, "High-speed bus reset detected\n"); ++ udc->gadget.speed = USB_SPEED_HIGH; ++ } else { ++ DBG(DBG_BUS, "Full-speed bus reset detected\n"); ++ udc->gadget.speed = USB_SPEED_FULL; ++ } ++ ++ ep0 = &usba_ep[0]; ++ ep0->desc = &usba_ep0_desc; ++ ep0->state = WAIT_FOR_SETUP; ++ usba_ep_writel(ep0, CFG, ++ (USBA_BF(EPT_SIZE, EP0_EPT_SIZE) ++ | USBA_BF(EPT_TYPE, USBA_EPT_TYPE_CONTROL) ++ | USBA_BF(BK_NUMBER, USBA_BK_NUMBER_ONE))); ++ usba_ep_writel(ep0, CTL_ENB, ++ USBA_BIT(EPT_ENABLE) | USBA_BIT(RX_SETUP)); ++ usba_writel(udc, INT_ENB, (usba_readl(udc, INT_ENB) ++ | USBA_BF(EPT_INT, 1) ++ | USBA_BIT(DET_SUSPEND) ++ | USBA_BIT(END_OF_RESUME))); ++ ++ if (!(usba_ep_readl(ep0, CFG) & USBA_BIT(EPT_MAPPED))) ++ dev_warn(&udc->pdev->dev, ++ "WARNING: EP0 configuration is invalid!\n"); ++ } ++ ++ spin_unlock(&udc->lock); ++ ++ return IRQ_HANDLED; ++} ++ ++static irqreturn_t usba_vbus_irq(int irq, void *devid) ++{ ++ struct usba_udc *udc = devid; ++ int vbus; ++ ++ /* debounce */ ++ udelay(10); ++ ++ spin_lock(&udc->lock); ++ vbus = gpio_get_value(udc->vbus_pin); ++ if (vbus != udc->vbus_prev) { ++ if (vbus) { ++ usba_writel(udc, CTRL, USBA_BIT(EN_USBA)); ++ usba_writel(udc, INT_ENB, USBA_BIT(END_OF_RESET)); ++ } else { ++ udc->gadget.speed = USB_SPEED_UNKNOWN; ++ reset_all_endpoints(udc); ++ usba_writel(udc, CTRL, 0); ++ if (udc->driver) ++ udc->driver->disconnect(&udc->gadget); ++ } ++ udc->vbus_prev = vbus; ++ } ++ spin_unlock(&udc->lock); ++ ++ return IRQ_HANDLED; ++} ++ ++int usb_gadget_register_driver(struct usb_gadget_driver *driver) ++{ ++ struct usba_udc *udc = &the_udc; ++ unsigned long flags; ++ int ret; ++ ++ if (!udc->pdev) ++ return -ENODEV; ++ ++ spin_lock_irqsave(&udc->lock, flags); ++ if (udc->driver) { ++ spin_unlock_irqrestore(&udc->lock, flags); ++ return -EBUSY; ++ } ++ ++ udc->driver = driver; ++ udc->gadget.dev.driver = &driver->driver; ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ clk_enable(udc->pclk); ++ clk_enable(udc->hclk); ++ ++ ret = driver->bind(&udc->gadget); ++ if (ret) { ++ DBG(DBG_ERR, "Could not bind to driver %s: error %d\n", ++ driver->driver.name, ret); ++ goto err_driver_bind; ++ } ++ ++ DBG(DBG_GADGET, "registered driver `%s'\n", driver->driver.name); ++ ++ udc->vbus_prev = 0; ++ if (udc->vbus_pin != -1) { ++ ret = request_irq(gpio_to_irq(udc->vbus_pin), ++ usba_vbus_irq, 0, "atmel_usba_udc", udc); ++ if (ret) { ++ gpio_free(udc->vbus_pin); ++ udc->vbus_pin = -1; ++ dev_warn(&udc->pdev->dev, ++ "failed to request vbus irq; " ++ "assuming always on\n"); ++ } ++ } ++ ++ /* If Vbus is present, enable the controller and wait for reset */ ++ spin_lock_irqsave(&udc->lock, flags); ++ if (vbus_is_present(udc) && udc->vbus_prev == 0) { ++ usba_writel(udc, CTRL, USBA_BIT(EN_USBA)); ++ usba_writel(udc, INT_ENB, USBA_BIT(END_OF_RESET)); ++ } ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ return 0; ++ ++err_driver_bind: ++ udc->driver = NULL; ++ udc->gadget.dev.driver = NULL; ++ return ret; ++} ++EXPORT_SYMBOL(usb_gadget_register_driver); ++ ++int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) ++{ ++ struct usba_udc *udc = &the_udc; ++ unsigned long flags; ++ ++ if (!udc->pdev) ++ return -ENODEV; ++ if (driver != udc->driver) ++ return -EINVAL; ++ ++ if (udc->vbus_pin != -1) ++ free_irq(gpio_to_irq(udc->vbus_pin), udc); ++ ++ spin_lock_irqsave(&udc->lock, flags); ++ udc->gadget.speed = USB_SPEED_UNKNOWN; ++ reset_all_endpoints(udc); ++ spin_unlock_irqrestore(&udc->lock, flags); ++ ++ /* This will also disable the DP pullup */ ++ usba_writel(udc, CTRL, 0); ++ ++ driver->unbind(&udc->gadget); ++ udc->gadget.dev.driver = NULL; ++ udc->driver = NULL; ++ ++ clk_disable(udc->hclk); ++ clk_disable(udc->pclk); ++ ++ DBG(DBG_GADGET, "unregistered driver `%s'\n", driver->driver.name); ++ ++ return 0; ++} ++EXPORT_SYMBOL(usb_gadget_unregister_driver); ++ ++static int __devinit usba_udc_probe(struct platform_device *pdev) ++{ ++ struct usba_platform_data *pdata = pdev->dev.platform_data; ++ struct resource *regs, *fifo; ++ struct clk *pclk, *hclk; ++ struct usba_udc *udc = &the_udc; ++ int irq, ret, i; ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, CTRL_IOMEM_ID); ++ fifo = platform_get_resource(pdev, IORESOURCE_MEM, FIFO_IOMEM_ID); ++ if (!regs || !fifo) ++ return -ENXIO; ++ ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) ++ return irq; ++ ++ pclk = clk_get(&pdev->dev, "pclk"); ++ if (IS_ERR(pclk)) ++ return PTR_ERR(pclk); ++ hclk = clk_get(&pdev->dev, "hclk"); ++ if (IS_ERR(hclk)) { ++ ret = PTR_ERR(hclk); ++ goto err_get_hclk; ++ } ++ ++ udc->pdev = pdev; ++ udc->pclk = pclk; ++ udc->hclk = hclk; ++ udc->vbus_pin = -1; ++ ++ ret = -ENOMEM; ++ udc->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!udc->regs) { ++ dev_err(&pdev->dev, "Unable to map I/O memory, aborting.\n"); ++ goto err_map_regs; ++ } ++ dev_info(&pdev->dev, "MMIO registers at 0x%08lx mapped at %p\n", ++ (unsigned long)regs->start, udc->regs); ++ udc->fifo = ioremap(fifo->start, fifo->end - fifo->start + 1); ++ if (!udc->fifo) { ++ dev_err(&pdev->dev, "Unable to map FIFO, aborting.\n"); ++ goto err_map_fifo; ++ } ++ dev_info(&pdev->dev, "FIFO at 0x%08lx mapped at %p\n", ++ (unsigned long)fifo->start, udc->fifo); ++ ++ device_initialize(&udc->gadget.dev); ++ udc->gadget.dev.parent = &pdev->dev; ++ udc->gadget.dev.dma_mask = pdev->dev.dma_mask; ++ ++ platform_set_drvdata(pdev, udc); ++ ++ /* Make sure we start from a clean slate */ ++ clk_enable(pclk); ++ usba_writel(udc, CTRL, 0); ++ clk_disable(pclk); ++ ++ INIT_LIST_HEAD(&usba_ep[0].ep.ep_list); ++ usba_ep[0].ep_regs = udc->regs + USBA_EPT_BASE(0); ++ usba_ep[0].dma_regs = udc->regs + USBA_DMA_BASE(0); ++ usba_ep[0].fifo = udc->fifo + USBA_FIFO_BASE(0); ++ for (i = 1; i < ARRAY_SIZE(usba_ep); i++) { ++ struct usba_ep *ep = &usba_ep[i]; ++ ++ ep->ep_regs = udc->regs + USBA_EPT_BASE(i); ++ ep->dma_regs = udc->regs + USBA_DMA_BASE(i); ++ ep->fifo = udc->fifo + USBA_FIFO_BASE(i); ++ ++ list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); ++ } ++ ++ ret = request_irq(irq, usba_udc_irq, IRQF_SAMPLE_RANDOM, ++ "atmel_usba_udc", udc); ++ if (ret) { ++ dev_err(&pdev->dev, "Cannot request irq %d (error %d)\n", ++ irq, ret); ++ goto err_request_irq; ++ } ++ udc->irq = irq; ++ ++ ret = device_add(&udc->gadget.dev); ++ if (ret) { ++ dev_dbg(&pdev->dev, "Could not add gadget: %d\n", ret); ++ goto err_device_add; ++ } ++ ++ if (pdata && pdata->vbus_pin != GPIO_PIN_NONE) ++ if (!gpio_request(pdata->vbus_pin, "atmel_usba_udc")) ++ udc->vbus_pin = pdata->vbus_pin; ++ ++ usba_init_debugfs(udc); ++ for (i = 1; i < ARRAY_SIZE(usba_ep); i++) ++ usba_ep_init_debugfs(udc, &usba_ep[i]); ++ ++ return 0; ++ ++err_device_add: ++ free_irq(irq, udc); ++err_request_irq: ++ iounmap(udc->fifo); ++err_map_fifo: ++ iounmap(udc->regs); ++err_map_regs: ++ clk_put(hclk); ++err_get_hclk: ++ clk_put(pclk); ++ ++ platform_set_drvdata(pdev, NULL); ++ ++ return ret; ++} ++ ++static int __devexit usba_udc_remove(struct platform_device *pdev) ++{ ++ struct usba_udc *udc; ++ int i; ++ ++ udc = platform_get_drvdata(pdev); ++ ++ for (i = 1; i < ARRAY_SIZE(usba_ep); i++) ++ usba_ep_cleanup_debugfs(&usba_ep[i]); ++ usba_cleanup_debugfs(udc); ++ ++ if (udc->vbus_pin != -1) ++ gpio_free(udc->vbus_pin); ++ ++ free_irq(udc->irq, udc); ++ iounmap(udc->fifo); ++ iounmap(udc->regs); ++ clk_put(udc->hclk); ++ clk_put(udc->pclk); ++ ++ device_unregister(&udc->gadget.dev); ++ ++ return 0; ++} ++ ++static struct platform_driver udc_driver = { ++ .probe = usba_udc_probe, ++ .remove = __devexit_p(usba_udc_remove), ++ .driver = { ++ .name = "atmel_usba_udc", ++ }, ++}; ++ ++static int __init udc_init(void) ++{ ++ return platform_driver_register(&udc_driver); ++} ++module_init(udc_init); ++ ++static void __exit udc_exit(void) ++{ ++ platform_driver_unregister(&udc_driver); ++} ++module_exit(udc_exit); ++ ++MODULE_DESCRIPTION("Atmel USBA UDC driver"); ++MODULE_AUTHOR("Haavard Skinnemoen <hskinnemoen@atmel.com>"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/usb/gadget/atmel_usba_udc.h b/drivers/usb/gadget/atmel_usba_udc.h +new file mode 100644 +index 0000000..408d2ce +--- /dev/null ++++ b/drivers/usb/gadget/atmel_usba_udc.h +@@ -0,0 +1,402 @@ ++/* ++ * Driver for the Atmel USBA high speed USB device controller ++ * ++ * Copyright (C) 2005-2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#ifndef __LINUX_USB_GADGET_USBA_UDC_H__ ++#define __LINUX_USB_GADGET_USBA_UDC_H__ ++ ++/* USB register offsets */ ++#define USBA_CTRL 0x0000 ++#define USBA_FNUM 0x0004 ++#define USBA_INT_ENB 0x0010 ++#define USBA_INT_STA 0x0014 ++#define USBA_INT_CLR 0x0018 ++#define USBA_EPT_RST 0x001c ++#define USBA_TST_SOF_CNT 0x00d0 ++#define USBA_TST_CNT_A 0x00d4 ++#define USBA_TST_CNT_B 0x00d8 ++#define USBA_TST_MODE_REG 0x00dc ++#define USBA_TST 0x00e0 ++ ++/* USB endpoint register offsets */ ++#define USBA_EPT_CFG 0x0000 ++#define USBA_EPT_CTL_ENB 0x0004 ++#define USBA_EPT_CTL_DIS 0x0008 ++#define USBA_EPT_CTL 0x000c ++#define USBA_EPT_SET_STA 0x0014 ++#define USBA_EPT_CLR_STA 0x0018 ++#define USBA_EPT_STA 0x001c ++ ++/* USB DMA register offsets */ ++#define USBA_DMA_NXT_DSC 0x0000 ++#define USBA_DMA_ADDRESS 0x0004 ++#define USBA_DMA_CONTROL 0x0008 ++#define USBA_DMA_STATUS 0x000c ++ ++/* Bitfields in CTRL */ ++#define USBA_DEV_ADDR_OFFSET 0 ++#define USBA_DEV_ADDR_SIZE 7 ++#define USBA_FADDR_EN_OFFSET 7 ++#define USBA_FADDR_EN_SIZE 1 ++#define USBA_EN_USBA_OFFSET 8 ++#define USBA_EN_USBA_SIZE 1 ++#define USBA_DETACH_OFFSET 9 ++#define USBA_DETACH_SIZE 1 ++#define USBA_REMOTE_WAKE_UP_OFFSET 10 ++#define USBA_REMOTE_WAKE_UP_SIZE 1 ++ ++/* Bitfields in FNUM */ ++#define USBA_MICRO_FRAME_NUM_OFFSET 0 ++#define USBA_MICRO_FRAME_NUM_SIZE 3 ++#define USBA_FRAME_NUMBER_OFFSET 3 ++#define USBA_FRAME_NUMBER_SIZE 11 ++#define USBA_FRAME_NUM_ERROR_OFFSET 31 ++#define USBA_FRAME_NUM_ERROR_SIZE 1 ++ ++/* Bitfields in INT_ENB/INT_STA/INT_CLR */ ++#define USBA_HIGH_SPEED_OFFSET 0 ++#define USBA_HIGH_SPEED_SIZE 1 ++#define USBA_DET_SUSPEND_OFFSET 1 ++#define USBA_DET_SUSPEND_SIZE 1 ++#define USBA_MICRO_SOF_OFFSET 2 ++#define USBA_MICRO_SOF_SIZE 1 ++#define USBA_SOF_OFFSET 3 ++#define USBA_SOF_SIZE 1 ++#define USBA_END_OF_RESET_OFFSET 4 ++#define USBA_END_OF_RESET_SIZE 1 ++#define USBA_WAKE_UP_OFFSET 5 ++#define USBA_WAKE_UP_SIZE 1 ++#define USBA_END_OF_RESUME_OFFSET 6 ++#define USBA_END_OF_RESUME_SIZE 1 ++#define USBA_UPSTREAM_RESUME_OFFSET 7 ++#define USBA_UPSTREAM_RESUME_SIZE 1 ++#define USBA_EPT_INT_OFFSET 8 ++#define USBA_EPT_INT_SIZE 16 ++#define USBA_DMA_INT_OFFSET 24 ++#define USBA_DMA_INT_SIZE 8 ++ ++/* Bitfields in EPT_RST */ ++#define USBA_RST_OFFSET 0 ++#define USBA_RST_SIZE 16 ++ ++/* Bitfields in TST_SOF_CNT */ ++#define USBA_SOF_CNT_MAX_OFFSET 0 ++#define USBA_SOF_CNT_MAX_SIZE 7 ++#define USBA_SOF_CNT_LOAD_OFFSET 7 ++#define USBA_SOF_CNT_LOAD_SIZE 1 ++ ++/* Bitfields in TST_CNT_A */ ++#define USBA_CNT_A_MAX_OFFSET 0 ++#define USBA_CNT_A_MAX_SIZE 7 ++#define USBA_CNT_A_LOAD_OFFSET 7 ++#define USBA_CNT_A_LOAD_SIZE 1 ++ ++/* Bitfields in TST_CNT_B */ ++#define USBA_CNT_B_MAX_OFFSET 0 ++#define USBA_CNT_B_MAX_SIZE 7 ++#define USBA_CNT_B_LOAD_OFFSET 7 ++#define USBA_CNT_B_LOAD_SIZE 1 ++ ++/* Bitfields in TST_MODE_REG */ ++#define USBA_TST_MODE_OFFSET 0 ++#define USBA_TST_MODE_SIZE 6 ++ ++/* Bitfields in USBA_TST */ ++#define USBA_SPEED_CFG_OFFSET 0 ++#define USBA_SPEED_CFG_SIZE 2 ++#define USBA_TST_J_MODE_OFFSET 2 ++#define USBA_TST_J_MODE_SIZE 1 ++#define USBA_TST_K_MODE_OFFSET 3 ++#define USBA_TST_K_MODE_SIZE 1 ++#define USBA_TST_PKT_MODE_OFFSET 4 ++#define USBA_TST_PKT_MODE_SIZE 1 ++#define USBA_OPMODE2_OFFSET 5 ++#define USBA_OPMODE2_SIZE 1 ++ ++/* Bitfields in EPT_CFG */ ++#define USBA_EPT_SIZE_OFFSET 0 ++#define USBA_EPT_SIZE_SIZE 3 ++#define USBA_EPT_DIR_OFFSET 3 ++#define USBA_EPT_DIR_SIZE 1 ++#define USBA_EPT_TYPE_OFFSET 4 ++#define USBA_EPT_TYPE_SIZE 2 ++#define USBA_BK_NUMBER_OFFSET 6 ++#define USBA_BK_NUMBER_SIZE 2 ++#define USBA_NB_TRANS_OFFSET 8 ++#define USBA_NB_TRANS_SIZE 2 ++#define USBA_EPT_MAPPED_OFFSET 31 ++#define USBA_EPT_MAPPED_SIZE 1 ++ ++/* Bitfields in EPT_CTL/EPT_CTL_ENB/EPT_CTL_DIS */ ++#define USBA_EPT_ENABLE_OFFSET 0 ++#define USBA_EPT_ENABLE_SIZE 1 ++#define USBA_AUTO_VALID_OFFSET 1 ++#define USBA_AUTO_VALID_SIZE 1 ++#define USBA_INTDIS_DMA_OFFSET 3 ++#define USBA_INTDIS_DMA_SIZE 1 ++#define USBA_NYET_DIS_OFFSET 4 ++#define USBA_NYET_DIS_SIZE 1 ++#define USBA_DATAX_RX_OFFSET 6 ++#define USBA_DATAX_RX_SIZE 1 ++#define USBA_MDATA_RX_OFFSET 7 ++#define USBA_MDATA_RX_SIZE 1 ++/* Bits 8-15 and 31 enable interrupts for respective bits in EPT_STA */ ++#define USBA_BUSY_BANK_IE_OFFSET 18 ++#define USBA_BUSY_BANK_IE_SIZE 1 ++ ++/* Bitfields in EPT_SET_STA/EPT_CLR_STA/EPT_STA */ ++#define USBA_FORCE_STALL_OFFSET 5 ++#define USBA_FORCE_STALL_SIZE 1 ++#define USBA_TOGGLE_SEQ_OFFSET 6 ++#define USBA_TOGGLE_SEQ_SIZE 2 ++#define USBA_ERR_OVFLW_OFFSET 8 ++#define USBA_ERR_OVFLW_SIZE 1 ++#define USBA_RX_BK_RDY_OFFSET 9 ++#define USBA_RX_BK_RDY_SIZE 1 ++#define USBA_KILL_BANK_OFFSET 9 ++#define USBA_KILL_BANK_SIZE 1 ++#define USBA_TX_COMPLETE_OFFSET 10 ++#define USBA_TX_COMPLETE_SIZE 1 ++#define USBA_TX_PK_RDY_OFFSET 11 ++#define USBA_TX_PK_RDY_SIZE 1 ++#define USBA_ISO_ERR_TRANS_OFFSET 11 ++#define USBA_ISO_ERR_TRANS_SIZE 1 ++#define USBA_RX_SETUP_OFFSET 12 ++#define USBA_RX_SETUP_SIZE 1 ++#define USBA_ISO_ERR_FLOW_OFFSET 12 ++#define USBA_ISO_ERR_FLOW_SIZE 1 ++#define USBA_STALL_SENT_OFFSET 13 ++#define USBA_STALL_SENT_SIZE 1 ++#define USBA_ISO_ERR_CRC_OFFSET 13 ++#define USBA_ISO_ERR_CRC_SIZE 1 ++#define USBA_ISO_ERR_NBTRANS_OFFSET 13 ++#define USBA_ISO_ERR_NBTRANS_SIZE 1 ++#define USBA_NAK_IN_OFFSET 14 ++#define USBA_NAK_IN_SIZE 1 ++#define USBA_ISO_ERR_FLUSH_OFFSET 14 ++#define USBA_ISO_ERR_FLUSH_SIZE 1 ++#define USBA_NAK_OUT_OFFSET 15 ++#define USBA_NAK_OUT_SIZE 1 ++#define USBA_CURRENT_BANK_OFFSET 16 ++#define USBA_CURRENT_BANK_SIZE 2 ++#define USBA_BUSY_BANKS_OFFSET 18 ++#define USBA_BUSY_BANKS_SIZE 2 ++#define USBA_BYTE_COUNT_OFFSET 20 ++#define USBA_BYTE_COUNT_SIZE 11 ++#define USBA_SHORT_PACKET_OFFSET 31 ++#define USBA_SHORT_PACKET_SIZE 1 ++ ++/* Bitfields in DMA_CONTROL */ ++#define USBA_DMA_CH_EN_OFFSET 0 ++#define USBA_DMA_CH_EN_SIZE 1 ++#define USBA_DMA_LINK_OFFSET 1 ++#define USBA_DMA_LINK_SIZE 1 ++#define USBA_DMA_END_TR_EN_OFFSET 2 ++#define USBA_DMA_END_TR_EN_SIZE 1 ++#define USBA_DMA_END_BUF_EN_OFFSET 3 ++#define USBA_DMA_END_BUF_EN_SIZE 1 ++#define USBA_DMA_END_TR_IE_OFFSET 4 ++#define USBA_DMA_END_TR_IE_SIZE 1 ++#define USBA_DMA_END_BUF_IE_OFFSET 5 ++#define USBA_DMA_END_BUF_IE_SIZE 1 ++#define USBA_DMA_DESC_LOAD_IE_OFFSET 6 ++#define USBA_DMA_DESC_LOAD_IE_SIZE 1 ++#define USBA_DMA_BURST_LOCK_OFFSET 7 ++#define USBA_DMA_BURST_LOCK_SIZE 1 ++#define USBA_DMA_BUF_LEN_OFFSET 16 ++#define USBA_DMA_BUF_LEN_SIZE 16 ++ ++/* Bitfields in DMA_STATUS */ ++#define USBA_DMA_CH_ACTIVE_OFFSET 1 ++#define USBA_DMA_CH_ACTIVE_SIZE 1 ++#define USBA_DMA_END_TR_ST_OFFSET 4 ++#define USBA_DMA_END_TR_ST_SIZE 1 ++#define USBA_DMA_END_BUF_ST_OFFSET 5 ++#define USBA_DMA_END_BUF_ST_SIZE 1 ++#define USBA_DMA_DESC_LOAD_ST_OFFSET 6 ++#define USBA_DMA_DESC_LOAD_ST_SIZE 1 ++ ++/* Constants for SPEED_CFG */ ++#define USBA_SPEED_CFG_NORMAL 0 ++#define USBA_SPEED_CFG_FORCE_HIGH 2 ++#define USBA_SPEED_CFG_FORCE_FULL 3 ++ ++/* Constants for EPT_SIZE */ ++#define USBA_EPT_SIZE_8 0 ++#define USBA_EPT_SIZE_16 1 ++#define USBA_EPT_SIZE_32 2 ++#define USBA_EPT_SIZE_64 3 ++#define USBA_EPT_SIZE_128 4 ++#define USBA_EPT_SIZE_256 5 ++#define USBA_EPT_SIZE_512 6 ++#define USBA_EPT_SIZE_1024 7 ++ ++/* Constants for EPT_TYPE */ ++#define USBA_EPT_TYPE_CONTROL 0 ++#define USBA_EPT_TYPE_ISO 1 ++#define USBA_EPT_TYPE_BULK 2 ++#define USBA_EPT_TYPE_INT 3 ++ ++/* Constants for BK_NUMBER */ ++#define USBA_BK_NUMBER_ZERO 0 ++#define USBA_BK_NUMBER_ONE 1 ++#define USBA_BK_NUMBER_DOUBLE 2 ++#define USBA_BK_NUMBER_TRIPLE 3 ++ ++/* Bit manipulation macros */ ++#define USBA_BIT(name) \ ++ (1 << USBA_##name##_OFFSET) ++#define USBA_BF(name, value) \ ++ (((value) & ((1 << USBA_##name##_SIZE) - 1)) \ ++ << USBA_##name##_OFFSET) ++#define USBA_BFEXT(name, value) \ ++ (((value) >> USBA_##name##_OFFSET) \ ++ & ((1 << USBA_##name##_SIZE) - 1)) ++#define USBA_BFINS(name, value, old) \ ++ (((old) & ~(((1 << USBA_##name##_SIZE) - 1) \ ++ << USBA_##name##_OFFSET)) \ ++ | USBA_BF(name, value)) ++ ++/* Register access macros */ ++#define usba_readl(udc, reg) \ ++ __raw_readl((udc)->regs + USBA_##reg) ++#define usba_writel(udc, reg, value) \ ++ __raw_writel((value), (udc)->regs + USBA_##reg) ++#define usba_ep_readl(ep, reg) \ ++ __raw_readl((ep)->ep_regs + USBA_EPT_##reg) ++#define usba_ep_writel(ep, reg, value) \ ++ __raw_writel((value), (ep)->ep_regs + USBA_EPT_##reg) ++#define usba_dma_readl(ep, reg) \ ++ __raw_readl((ep)->dma_regs + USBA_DMA_##reg) ++#define usba_dma_writel(ep, reg, value) \ ++ __raw_writel((value), (ep)->dma_regs + USBA_DMA_##reg) ++ ++/* Calculate base address for a given endpoint or DMA controller */ ++#define USBA_EPT_BASE(x) (0x100 + (x) * 0x20) ++#define USBA_DMA_BASE(x) (0x300 + (x) * 0x10) ++#define USBA_FIFO_BASE(x) ((x) << 16) ++ ++/* Synth parameters */ ++#define USBA_NR_ENDPOINTS 7 ++ ++#define EP0_FIFO_SIZE 64 ++#define EP0_EPT_SIZE USBA_EPT_SIZE_64 ++#define EP0_NR_BANKS 1 ++#define BULK_FIFO_SIZE 512 ++#define BULK_EPT_SIZE USBA_EPT_SIZE_512 ++#define BULK_NR_BANKS 2 ++#define ISO_FIFO_SIZE 1024 ++#define ISO_EPT_SIZE USBA_EPT_SIZE_1024 ++#define ISO_NR_BANKS 3 ++#define INT_FIFO_SIZE 64 ++#define INT_EPT_SIZE USBA_EPT_SIZE_64 ++#define INT_NR_BANKS 3 ++ ++enum usba_ctrl_state { ++ WAIT_FOR_SETUP, ++ DATA_STAGE_IN, ++ DATA_STAGE_OUT, ++ STATUS_STAGE_IN, ++ STATUS_STAGE_OUT, ++ STATUS_STAGE_ADDR, ++ STATUS_STAGE_TEST, ++}; ++/* ++ EP_STATE_IDLE, ++ EP_STATE_SETUP, ++ EP_STATE_IN_DATA, ++ EP_STATE_OUT_DATA, ++ EP_STATE_SET_ADDR_STATUS, ++ EP_STATE_RX_STATUS, ++ EP_STATE_TX_STATUS, ++ EP_STATE_HALT, ++*/ ++ ++struct usba_dma_desc { ++ dma_addr_t next; ++ dma_addr_t addr; ++ u32 ctrl; ++}; ++ ++struct usba_ep { ++ int state; ++ void __iomem *ep_regs; ++ void __iomem *dma_regs; ++ void __iomem *fifo; ++ struct usb_ep ep; ++ struct usba_udc *udc; ++ ++ struct list_head queue; ++ const struct usb_endpoint_descriptor *desc; ++ ++ u16 fifo_size; ++ u8 nr_banks; ++ u8 index; ++ unsigned int can_dma:1; ++ unsigned int can_isoc:1; ++ unsigned int is_isoc:1; ++ unsigned int is_in:1; ++ ++#ifdef CONFIG_DEBUG_FS ++ u32 last_dma_status; ++ struct dentry *debugfs_dir; ++ struct dentry *debugfs_queue; ++ struct dentry *debugfs_dma_status; ++ struct dentry *debugfs_state; ++#endif ++}; ++ ++struct usba_request { ++ struct usb_request req; ++ struct list_head queue; ++ ++ u32 ctrl; ++ ++ unsigned int submitted:1; ++ unsigned int last_transaction:1; ++ unsigned int using_dma:1; ++ unsigned int mapped:1; ++}; ++ ++struct usba_udc { ++ /* Protect hw registers from concurrent modifications */ ++ spinlock_t lock; ++ ++ void __iomem *regs; ++ void __iomem *fifo; ++ ++ struct usb_gadget gadget; ++ struct usb_gadget_driver *driver; ++ struct platform_device *pdev; ++ int irq; ++ int vbus_pin; ++ struct clk *pclk; ++ struct clk *hclk; ++ ++ int test_mode; ++ int vbus_prev; ++ ++#ifdef CONFIG_DEBUG_FS ++ struct dentry *debugfs_root; ++ struct dentry *debugfs_regs; ++#endif ++}; ++ ++#define to_usba_ep(x) container_of((x), struct usba_ep, ep) ++#define to_usba_req(x) container_of((x), struct usba_request, req) ++#define to_usba_udc(x) container_of((x), struct usba_udc, gadget) ++ ++#define ep_index(ep) ((ep)->index) ++#define ep_can_dma(ep) ((ep)->can_dma) ++#define ep_is_in(ep) ((ep)->is_in) ++#define ep_is_isochronous(ep) ((ep)->is_isoc) ++#define ep_is_control(ep) (ep_index(ep) == 0) ++#define ep_name(ep) ((ep)->ep.name) ++#define ep_is_idle(ep) ((ep)->state == EP_STATE_IDLE) ++ ++#endif /* __LINUX_USB_GADGET_USBA_UDC_H */ +diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c +index 325bf7c..23e874b 100644 +--- a/drivers/usb/gadget/ether.c ++++ b/drivers/usb/gadget/ether.c +@@ -277,7 +277,7 @@ MODULE_PARM_DESC(host_addr, "Host Ethernet Address"); + #define DEV_CONFIG_CDC + #endif + +-#ifdef CONFIG_USB_GADGET_HUSB2DEV ++#ifdef CONFIG_USB_GADGET_ATMEL_USBA + #define DEV_CONFIG_CDC + #endif + +diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h +index d041b91..96e4dbc 100644 +--- a/drivers/usb/gadget/gadget_chips.h ++++ b/drivers/usb/gadget/gadget_chips.h +@@ -75,10 +75,10 @@ + #define gadget_is_pxa27x(g) 0 + #endif + +-#ifdef CONFIG_USB_GADGET_HUSB2DEV +-#define gadget_is_husb2dev(g) !strcmp("husb2_udc", (g)->name) ++#ifdef CONFIG_USB_GADGET_ATMEL_USBA ++#define gadget_is_atmel_usba(g) !strcmp("atmel_usba_udc", (g)->name) + #else +-#define gadget_is_husb2dev(g) 0 ++#define gadget_is_atmel_usba(g) 0 + #endif + + #ifdef CONFIG_USB_GADGET_S3C2410 +@@ -181,7 +181,7 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget) + return 0x16; + else if (gadget_is_mpc8272(gadget)) + return 0x17; +- else if (gadget_is_husb2dev(gadget)) ++ else if (gadget_is_atmel_usba(gadget)) + return 0x18; + else if (gadget_is_fsl_usb2(gadget)) + return 0x19; +diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c +index 46d0e52..855f8cc 100644 +--- a/drivers/usb/gadget/inode.c ++++ b/drivers/usb/gadget/inode.c +@@ -37,7 +37,7 @@ + #include <linux/device.h> + #include <linux/moduleparam.h> + +-#include <linux/usb_gadgetfs.h> ++#include <linux/usb/gadgetfs.h> + #include <linux/usb_gadget.h> + + +diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig +index 403dac7..f3e2897 100644 +--- a/drivers/video/Kconfig ++++ b/drivers/video/Kconfig +@@ -849,6 +849,16 @@ config FB_INTSRAM + Say Y if you want to map Frame Buffer in internal SRAM. Say N if you want + to let frame buffer in external SDRAM. + ++config FB_ATMEL_STN ++ bool "Use a STN display with AT91/AT32 LCD Controller" ++ depends on FB_ATMEL && ARCH_AT91SAM9261 ++ default n ++ help ++ Say Y if you want to connect a STN LCD display to the AT91/AT32 LCD ++ Controller. Say N if you want to connect a TFT. ++ ++ If unsure, say N. ++ + config FB_NVIDIA + tristate "nVidia Framebuffer Support" + depends on FB && PCI +diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c +index e1d5bd0..bb361ab 100644 +--- a/drivers/video/atmel_lcdfb.c ++++ b/drivers/video/atmel_lcdfb.c +@@ -37,7 +37,9 @@ + #endif + + #if defined(CONFIG_ARCH_AT91) +-#define ATMEL_LCDFB_FBINFO_DEFAULT FBINFO_DEFAULT ++#define ATMEL_LCDFB_FBINFO_DEFAULT (FBINFO_DEFAULT \ ++ | FBINFO_PARTIAL_PAN_OK \ ++ | FBINFO_HWACCEL_YPAN) + + static inline void atmel_lcdfb_update_dma2d(struct atmel_lcdfb_info *sinfo, + struct fb_var_screeninfo *var) +@@ -74,11 +76,34 @@ static struct fb_fix_screeninfo atmel_lcdfb_fix __initdata = { + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, + .xpanstep = 0, +- .ypanstep = 0, ++ .ypanstep = 1, + .ywrapstep = 0, + .accel = FB_ACCEL_NONE, + }; + ++static unsigned long compute_hozval(unsigned long xres, unsigned long lcdcon2) ++{ ++ unsigned long value; ++ ++ if (!(cpu_is_at91sam9261() || cpu_is_at32ap7000())) ++ return xres; ++ ++ value = xres; ++ if ((lcdcon2 & ATMEL_LCDC_DISTYPE) != ATMEL_LCDC_DISTYPE_TFT) { ++ /* STN display */ ++ if ((lcdcon2 & ATMEL_LCDC_DISTYPE) == ATMEL_LCDC_DISTYPE_STNCOLOR) { ++ value *= 3; ++ } ++ if ( (lcdcon2 & ATMEL_LCDC_IFWIDTH) == ATMEL_LCDC_IFWIDTH_4 ++ || ( (lcdcon2 & ATMEL_LCDC_IFWIDTH) == ATMEL_LCDC_IFWIDTH_8 ++ && (lcdcon2 & ATMEL_LCDC_SCANMOD) == ATMEL_LCDC_SCANMOD_DUAL )) ++ value = DIV_ROUND_UP(value, 4); ++ else ++ value = DIV_ROUND_UP(value, 8); ++ } ++ ++ return value; ++} + + static void atmel_lcdfb_update_dma(struct fb_info *info, + struct fb_var_screeninfo *var) +@@ -181,6 +206,7 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, + var->xoffset = var->yoffset = 0; + + switch (var->bits_per_pixel) { ++ case 1: + case 2: + case 4: + case 8: +@@ -195,8 +221,11 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, + var->blue.offset = 10; + var->red.length = var->green.length = var->blue.length = 5; + break; +- case 24: + case 32: ++ var->transp.offset = 24; ++ var->transp.length = 8; ++ /* fall through */ ++ case 24: + var->red.offset = 0; + var->green.offset = 8; + var->blue.offset = 16; +@@ -228,8 +257,10 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, + static int atmel_lcdfb_set_par(struct fb_info *info) + { + struct atmel_lcdfb_info *sinfo = info->par; ++ unsigned long hozval_linesz; + unsigned long value; + unsigned long clk_value_khz; ++ unsigned long bits_per_line; + + dev_dbg(info->device, "%s:\n", __func__); + dev_dbg(info->device, " * resolution: %ux%u (%ux%u virtual)\n", +@@ -241,12 +272,15 @@ static int atmel_lcdfb_set_par(struct fb_info *info) + + lcdc_writel(sinfo, ATMEL_LCDC_DMACON, 0); + +- if (info->var.bits_per_pixel <= 8) ++ if (info->var.bits_per_pixel == 1) ++ info->fix.visual = FB_VISUAL_MONO01; ++ else if (info->var.bits_per_pixel <= 8) + info->fix.visual = FB_VISUAL_PSEUDOCOLOR; + else + info->fix.visual = FB_VISUAL_TRUECOLOR; + +- info->fix.line_length = info->var.xres_virtual * (info->var.bits_per_pixel / 8); ++ bits_per_line = info->var.xres_virtual * info->var.bits_per_pixel; ++ info->fix.line_length = DIV_ROUND_UP(bits_per_line, 8); + + /* Re-initialize the DMA engine... */ + dev_dbg(info->device, " * update DMA engine\n"); +@@ -262,18 +296,21 @@ static int atmel_lcdfb_set_par(struct fb_info *info) + /* Set pixel clock */ + clk_value_khz = clk_get_rate(sinfo->lcdc_clk) / 1000; + +- value = clk_value_khz / PICOS2KHZ(info->var.pixclock); +- +- if (clk_value_khz % PICOS2KHZ(info->var.pixclock)) +- value++; ++ value = DIV_ROUND_UP(clk_value_khz, PICOS2KHZ(info->var.pixclock)); + + value = (value / 2) - 1; ++ dev_dbg(info->device, " * programming CLKVAL = 0x%08lx\n", value); + + if (value <= 0) { + dev_notice(info->device, "Bypassing pixel clock divider\n"); + lcdc_writel(sinfo, ATMEL_LCDC_LCDCON1, ATMEL_LCDC_BYPASS); +- } else ++ } else { + lcdc_writel(sinfo, ATMEL_LCDC_LCDCON1, value << ATMEL_LCDC_CLKVAL_OFFSET); ++ info->var.pixclock = KHZ2PICOS(clk_value_khz / (2 * (value + 1))); ++ dev_dbg(info->device, " updated pixclk: %lu KHz\n", ++ PICOS2KHZ(info->var.pixclock)); ++ } ++ + + /* Initialize control register 2 */ + value = sinfo->default_lcdcon2; +@@ -311,9 +348,14 @@ static int atmel_lcdfb_set_par(struct fb_info *info) + dev_dbg(info->device, " * LCDTIM2 = %08lx\n", value); + lcdc_writel(sinfo, ATMEL_LCDC_TIM2, value); + ++ /* Horizontal value (aka line size) */ ++ hozval_linesz = compute_hozval(info->var.xres, ++ lcdc_readl(sinfo, ATMEL_LCDC_LCDCON2)); ++ + /* Display size */ +- value = (info->var.xres - 1) << ATMEL_LCDC_HOZVAL_OFFSET; ++ value = (hozval_linesz - 1) << ATMEL_LCDC_HOZVAL_OFFSET; + value |= info->var.yres - 1; ++ dev_dbg(info->device, " * LCDFRMCFG = %08lx\n", value); + lcdc_writel(sinfo, ATMEL_LCDC_LCDFRMCFG, value); + + /* FIFO Threshold: Use formula from data sheet */ +@@ -421,6 +463,15 @@ static int atmel_lcdfb_setcolreg(unsigned int regno, unsigned int red, + ret = 0; + } + break; ++ ++ case FB_VISUAL_MONO01: ++ if (regno < 2) { ++ val = (regno == 0) ? 0x00 : 0x1F; ++ lcdc_writel(sinfo, ATMEL_LCDC_LUT(regno), val); ++ ret = 0; ++ } ++ break; ++ + } + + return ret; +diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig +index fbef663..b6f936a 100644 +--- a/drivers/video/backlight/Kconfig ++++ b/drivers/video/backlight/Kconfig +@@ -8,26 +8,44 @@ menuconfig BACKLIGHT_LCD_SUPPORT + Enable this to be able to choose the drivers for controlling the + backlight and the LCD panel on some platforms, for example on PDAs. + +-config BACKLIGHT_CLASS_DEVICE +- tristate "Lowlevel Backlight controls" ++# ++# LCD ++# ++config LCD_CLASS_DEVICE ++ tristate "Lowlevel LCD controls" + depends on BACKLIGHT_LCD_SUPPORT + default m + help +- This framework adds support for low-level control of the LCD +- backlight. This includes support for brightness and power. ++ This framework adds support for low-level control of LCD. ++ Some framebuffer devices connect to platform-specific LCD modules ++ in order to have a platform-specific way to control the flat panel ++ (contrast and applying power to the LCD (not to the backlight!)). + + To have support for your specific LCD panel you will have to + select the proper drivers which depend on this option. + +-config LCD_CLASS_DEVICE +- tristate "Lowlevel LCD controls" ++config LCD_LTV350QV ++ tristate "Samsung LTV350QV LCD Panel" ++ depends on LCD_CLASS_DEVICE && SPI_MASTER ++ default n ++ help ++ If you have a Samsung LTV350QV LCD panel, say y to include a ++ power control driver for it. The panel starts up in power ++ off state, so you need this driver in order to see any ++ output. ++ ++ The LTV350QV panel is present on all ATSTK1000 boards. ++ ++# ++# Backlight ++# ++config BACKLIGHT_CLASS_DEVICE ++ tristate "Lowlevel Backlight controls" + depends on BACKLIGHT_LCD_SUPPORT + default m + help +- This framework adds support for low-level control of LCD. +- Some framebuffer devices connect to platform-specific LCD modules +- in order to have a platform-specific way to control the flat panel +- (contrast and applying power to the LCD (not to the backlight!)). ++ This framework adds support for low-level control of the LCD ++ backlight. This includes support for brightness and power. + + To have support for your specific LCD panel you will have to + select the proper drivers which depend on this option. +diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile +index c6e2266..965a78b 100644 +--- a/drivers/video/backlight/Makefile ++++ b/drivers/video/backlight/Makefile +@@ -1,6 +1,8 @@ + # Backlight & LCD drivers + + obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o ++obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o ++ + obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o + obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o + obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o +diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c +new file mode 100644 +index 0000000..64ce69e +--- /dev/null ++++ b/drivers/video/backlight/ltv350qv.c +@@ -0,0 +1,339 @@ ++/* ++ * Power control for Samsung LTV350QV Quarter VGA LCD Panel ++ * ++ * Copyright (C) 2006, 2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#include <linux/delay.h> ++#include <linux/err.h> ++#include <linux/fb.h> ++#include <linux/init.h> ++#include <linux/lcd.h> ++#include <linux/module.h> ++#include <linux/spi/spi.h> ++ ++#include "ltv350qv.h" ++ ++#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) ++ ++struct ltv350qv { ++ struct spi_device *spi; ++ u8 *buffer; ++ int power; ++ struct lcd_device *ld; ++}; ++ ++/* ++ * The power-on and power-off sequences are taken from the ++ * LTV350QV-F04 data sheet from Samsung. The register definitions are ++ * taken from the S6F2002 command list also from Samsung. Both ++ * documents are distributed with the AVR32 Linux BSP CD from Atmel. ++ * ++ * There's still some voodoo going on here, but it's a lot better than ++ * in the first incarnation of the driver where all we had was the raw ++ * numbers from the initialization sequence. ++ */ ++static int ltv350qv_write_reg(struct ltv350qv *lcd, u8 reg, u16 val) ++{ ++ struct spi_message msg; ++ struct spi_transfer index_xfer = { ++ .len = 3, ++ .cs_change = 1, ++ }; ++ struct spi_transfer value_xfer = { ++ .len = 3, ++ }; ++ ++ spi_message_init(&msg); ++ ++ /* register index */ ++ lcd->buffer[0] = LTV_OPC_INDEX; ++ lcd->buffer[1] = 0x00; ++ lcd->buffer[2] = reg & 0x7f; ++ index_xfer.tx_buf = lcd->buffer; ++ spi_message_add_tail(&index_xfer, &msg); ++ ++ /* register value */ ++ lcd->buffer[4] = LTV_OPC_DATA; ++ lcd->buffer[5] = val >> 8; ++ lcd->buffer[6] = val; ++ value_xfer.tx_buf = lcd->buffer + 4; ++ spi_message_add_tail(&value_xfer, &msg); ++ ++ return spi_sync(lcd->spi, &msg); ++} ++ ++/* The comments are taken straight from the data sheet */ ++static int ltv350qv_power_on(struct ltv350qv *lcd) ++{ ++ int ret; ++ ++ /* Power On Reset Display off State */ ++ if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, 0x0000)) ++ goto err; ++ msleep(15); ++ ++ /* Power Setting Function 1 */ ++ if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE)) ++ goto err; ++ if (ltv350qv_write_reg(lcd, LTV_PWRCTL2, LTV_VCOML_ENABLE)) ++ goto err_power1; ++ ++ /* Power Setting Function 2 */ ++ if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, ++ LTV_VCOM_DISABLE | LTV_DRIVE_CURRENT(5) ++ | LTV_SUPPLY_CURRENT(5))) ++ goto err_power2; ++ ++ msleep(55); ++ ++ /* Instruction Setting */ ++ ret = ltv350qv_write_reg(lcd, LTV_IFCTL, ++ LTV_NMD | LTV_REV | LTV_NL(0x1d)); ++ ret |= ltv350qv_write_reg(lcd, LTV_DATACTL, ++ LTV_DS_SAME | LTV_CHS_480 ++ | LTV_DF_RGB | LTV_RGB_BGR); ++ ret |= ltv350qv_write_reg(lcd, LTV_ENTRY_MODE, ++ LTV_VSPL_ACTIVE_LOW ++ | LTV_HSPL_ACTIVE_LOW ++ | LTV_DPL_SAMPLE_RISING ++ | LTV_EPL_ACTIVE_LOW ++ | LTV_SS_RIGHT_TO_LEFT); ++ ret |= ltv350qv_write_reg(lcd, LTV_GATECTL1, LTV_CLW(3)); ++ ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2, ++ LTV_NW_INV_1LINE | LTV_FWI(3)); ++ ret |= ltv350qv_write_reg(lcd, LTV_VBP, 0x000a); ++ ret |= ltv350qv_write_reg(lcd, LTV_HBP, 0x0021); ++ ret |= ltv350qv_write_reg(lcd, LTV_SOTCTL, LTV_SDT(3) | LTV_EQ(0)); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(0), 0x0103); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(1), 0x0301); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(2), 0x1f0f); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(3), 0x1f0f); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(4), 0x0707); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(5), 0x0307); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(6), 0x0707); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(7), 0x0000); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(8), 0x0004); ++ ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(9), 0x0000); ++ if (ret) ++ goto err_settings; ++ ++ /* Wait more than 2 frames */ ++ msleep(20); ++ ++ /* Display On Sequence */ ++ ret = ltv350qv_write_reg(lcd, LTV_PWRCTL1, ++ LTV_VCOM_DISABLE | LTV_VCOMOUT_ENABLE ++ | LTV_POWER_ON | LTV_DRIVE_CURRENT(5) ++ | LTV_SUPPLY_CURRENT(5)); ++ ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2, ++ LTV_NW_INV_1LINE | LTV_DSC | LTV_FWI(3)); ++ if (ret) ++ goto err_disp_on; ++ ++ /* Display should now be ON. Phew. */ ++ return 0; ++ ++err_disp_on: ++ /* ++ * Try to recover. Error handling probably isn't very useful ++ * at this point, just make a best effort to switch the panel ++ * off. ++ */ ++ ltv350qv_write_reg(lcd, LTV_PWRCTL1, ++ LTV_VCOM_DISABLE | LTV_DRIVE_CURRENT(5) ++ | LTV_SUPPLY_CURRENT(5)); ++ ltv350qv_write_reg(lcd, LTV_GATECTL2, ++ LTV_NW_INV_1LINE | LTV_FWI(3)); ++err_settings: ++err_power2: ++err_power1: ++ ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000); ++ msleep(1); ++err: ++ ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE); ++ return -EIO; ++} ++ ++static int ltv350qv_power_off(struct ltv350qv *lcd) ++{ ++ int ret; ++ ++ /* Display Off Sequence */ ++ ret = ltv350qv_write_reg(lcd, LTV_PWRCTL1, ++ LTV_VCOM_DISABLE ++ | LTV_DRIVE_CURRENT(5) ++ | LTV_SUPPLY_CURRENT(5)); ++ ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2, ++ LTV_NW_INV_1LINE | LTV_FWI(3)); ++ ++ /* Power down setting 1 */ ++ ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000); ++ ++ /* Wait at least 1 ms */ ++ msleep(1); ++ ++ /* Power down setting 2 */ ++ ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE); ++ ++ /* ++ * No point in trying to recover here. If we can't switch the ++ * panel off, what are we supposed to do other than inform the ++ * user about the failure? ++ */ ++ if (ret) ++ return -EIO; ++ ++ /* Display power should now be OFF */ ++ return 0; ++} ++ ++static int ltv350qv_power(struct ltv350qv *lcd, int power) ++{ ++ int ret = 0; ++ ++ if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power)) ++ ret = ltv350qv_power_on(lcd); ++ else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power)) ++ ret = ltv350qv_power_off(lcd); ++ ++ if (!ret) ++ lcd->power = power; ++ ++ return ret; ++} ++ ++static int ltv350qv_set_power(struct lcd_device *ld, int power) ++{ ++ struct ltv350qv *lcd; ++ ++ lcd = class_get_devdata(&ld->class_dev); ++ return ltv350qv_power(lcd, power); ++} ++ ++static int ltv350qv_get_power(struct lcd_device *ld) ++{ ++ struct ltv350qv *lcd; ++ ++ lcd = class_get_devdata(&ld->class_dev); ++ return lcd->power; ++} ++ ++static struct lcd_ops ltv_ops = { ++ .get_power = ltv350qv_get_power, ++ .set_power = ltv350qv_set_power, ++}; ++ ++static int __devinit ltv350qv_probe(struct spi_device *spi) ++{ ++ struct ltv350qv *lcd; ++ struct lcd_device *ld; ++ int ret; ++ ++ lcd = kzalloc(sizeof(struct ltv350qv), GFP_KERNEL); ++ if (!lcd) ++ return -ENOMEM; ++ ++ lcd->spi = spi; ++ lcd->power = FB_BLANK_POWERDOWN; ++ lcd->buffer = kzalloc(8, GFP_KERNEL); ++ ++ ld = lcd_device_register("ltv350qv", lcd, <v_ops); ++ if (IS_ERR(ld)) { ++ ret = PTR_ERR(ld); ++ goto out_free_lcd; ++ } ++ lcd->ld = ld; ++ ++ ret = ltv350qv_power(lcd, FB_BLANK_UNBLANK); ++ if (ret) ++ goto out_unregister; ++ ++ dev_set_drvdata(&spi->dev, lcd); ++ ++ return 0; ++ ++out_unregister: ++ lcd_device_unregister(ld); ++out_free_lcd: ++ kfree(lcd); ++ return ret; ++} ++ ++static int __devexit ltv350qv_remove(struct spi_device *spi) ++{ ++ struct ltv350qv *lcd = dev_get_drvdata(&spi->dev); ++ ++ ltv350qv_power(lcd, FB_BLANK_POWERDOWN); ++ lcd_device_unregister(lcd->ld); ++ kfree(lcd); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++static int ltv350qv_suspend(struct spi_device *spi, ++ pm_message_t state, u32 level) ++{ ++ struct ltv350qv *lcd = dev_get_drvdata(&spi->dev); ++ ++ if (level == SUSPEND_POWER_DOWN) ++ return ltv350qv_power(lcd, FB_BLANK_POWERDOWN); ++ ++ return 0; ++} ++ ++static int ltv350qv_resume(struct spi_device *spi, u32 level) ++{ ++ struct ltv350qv *lcd = dev_get_drvdata(&spi->dev); ++ ++ if (level == RESUME_POWER_ON) ++ return ltv350qv_power(lcd, FB_BLANK_UNBLANK); ++ ++ return 0; ++} ++#else ++#define ltv350qv_suspend NULL ++#define ltv350qv_resume NULL ++#endif ++ ++/* Power down all displays on reboot, poweroff or halt */ ++static void ltv350qv_shutdown(struct spi_device *spi) ++{ ++ struct ltv350qv *lcd = dev_get_drvdata(&spi->dev); ++ ++ ltv350qv_power(lcd, FB_BLANK_POWERDOWN); ++} ++ ++static struct spi_driver ltv350qv_driver = { ++ .driver = { ++ .name = "ltv350qv", ++ .bus = &spi_bus_type, ++ .owner = THIS_MODULE, ++ }, ++ ++ .probe = ltv350qv_probe, ++ .remove = __devexit_p(ltv350qv_remove), ++ .shutdown = ltv350qv_shutdown, ++ .suspend = ltv350qv_suspend, ++ .resume = ltv350qv_resume, ++}; ++ ++static int __init ltv350qv_init(void) ++{ ++ return spi_register_driver(<v350qv_driver); ++} ++ ++static void __exit ltv350qv_exit(void) ++{ ++ spi_unregister_driver(<v350qv_driver); ++} ++module_init(ltv350qv_init); ++module_exit(ltv350qv_exit); ++ ++MODULE_AUTHOR("Haavard Skinnemoen <hskinnemoen@atmel.com>"); ++MODULE_DESCRIPTION("Samsung LTV350QV LCD Driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/video/backlight/ltv350qv.h b/drivers/video/backlight/ltv350qv.h +new file mode 100644 +index 0000000..189112e +--- /dev/null ++++ b/drivers/video/backlight/ltv350qv.h +@@ -0,0 +1,95 @@ ++/* ++ * Register definitions for Samsung LTV350QV Quarter VGA LCD Panel ++ * ++ * Copyright (C) 2006, 2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#ifndef __LTV350QV_H ++#define __LTV350QV_H ++ ++#define LTV_OPC_INDEX 0x74 ++#define LTV_OPC_DATA 0x76 ++ ++#define LTV_ID 0x00 /* ID Read */ ++#define LTV_IFCTL 0x01 /* Display Interface Control */ ++#define LTV_DATACTL 0x02 /* Display Data Control */ ++#define LTV_ENTRY_MODE 0x03 /* Entry Mode */ ++#define LTV_GATECTL1 0x04 /* Gate Control 1 */ ++#define LTV_GATECTL2 0x05 /* Gate Control 2 */ ++#define LTV_VBP 0x06 /* Vertical Back Porch */ ++#define LTV_HBP 0x07 /* Horizontal Back Porch */ ++#define LTV_SOTCTL 0x08 /* Source Output Timing Control */ ++#define LTV_PWRCTL1 0x09 /* Power Control 1 */ ++#define LTV_PWRCTL2 0x0a /* Power Control 2 */ ++#define LTV_GAMMA(x) (0x10 + (x)) /* Gamma control */ ++ ++/* Bit definitions for LTV_IFCTL */ ++#define LTV_IM (1 << 15) ++#define LTV_NMD (1 << 14) ++#define LTV_SSMD (1 << 13) ++#define LTV_REV (1 << 7) ++#define LTV_NL(x) (((x) & 0x001f) << 0) ++ ++/* Bit definitions for LTV_DATACTL */ ++#define LTV_DS_SAME (0 << 12) ++#define LTV_DS_D_TO_S (1 << 12) ++#define LTV_DS_S_TO_D (2 << 12) ++#define LTV_CHS_384 (0 << 9) ++#define LTV_CHS_480 (1 << 9) ++#define LTV_CHS_492 (2 << 9) ++#define LTV_DF_RGB (0 << 6) ++#define LTV_DF_RGBX (1 << 6) ++#define LTV_DF_XRGB (2 << 6) ++#define LTV_RGB_RGB (0 << 2) ++#define LTV_RGB_BGR (1 << 2) ++#define LTV_RGB_GRB (2 << 2) ++#define LTV_RGB_RBG (3 << 2) ++ ++/* Bit definitions for LTV_ENTRY_MODE */ ++#define LTV_VSPL_ACTIVE_LOW (0 << 15) ++#define LTV_VSPL_ACTIVE_HIGH (1 << 15) ++#define LTV_HSPL_ACTIVE_LOW (0 << 14) ++#define LTV_HSPL_ACTIVE_HIGH (1 << 14) ++#define LTV_DPL_SAMPLE_RISING (0 << 13) ++#define LTV_DPL_SAMPLE_FALLING (1 << 13) ++#define LTV_EPL_ACTIVE_LOW (0 << 12) ++#define LTV_EPL_ACTIVE_HIGH (1 << 12) ++#define LTV_SS_LEFT_TO_RIGHT (0 << 8) ++#define LTV_SS_RIGHT_TO_LEFT (1 << 8) ++#define LTV_STB (1 << 1) ++ ++/* Bit definitions for LTV_GATECTL1 */ ++#define LTV_CLW(x) (((x) & 0x0007) << 12) ++#define LTV_GAON (1 << 5) ++#define LTV_SDR (1 << 3) ++ ++/* Bit definitions for LTV_GATECTL2 */ ++#define LTV_NW_INV_FRAME (0 << 14) ++#define LTV_NW_INV_1LINE (1 << 14) ++#define LTV_NW_INV_2LINE (2 << 14) ++#define LTV_DSC (1 << 12) ++#define LTV_GIF (1 << 8) ++#define LTV_FHN (1 << 7) ++#define LTV_FTI(x) (((x) & 0x0003) << 4) ++#define LTV_FWI(x) (((x) & 0x0003) << 0) ++ ++/* Bit definitions for LTV_SOTCTL */ ++#define LTV_SDT(x) (((x) & 0x0007) << 10) ++#define LTV_EQ(x) (((x) & 0x0007) << 2) ++ ++/* Bit definitions for LTV_PWRCTL1 */ ++#define LTV_VCOM_DISABLE (1 << 14) ++#define LTV_VCOMOUT_ENABLE (1 << 11) ++#define LTV_POWER_ON (1 << 9) ++#define LTV_DRIVE_CURRENT(x) (((x) & 0x0007) << 4) /* 0=off, 5=max */ ++#define LTV_SUPPLY_CURRENT(x) (((x) & 0x0007) << 0) /* 0=off, 5=max */ ++ ++/* Bit definitions for LTV_PWRCTL2 */ ++#define LTV_VCOML_ENABLE (1 << 13) ++#define LTV_VCOML_VOLTAGE(x) (((x) & 0x001f) << 8) /* 0=1V, 31=-1V */ ++#define LTV_VCOMH_VOLTAGE(x) (((x) & 0x001f) << 0) /* 0=3V, 31=4.5V */ ++ ++#endif /* __LTV350QV_H */ +diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h +index 0ce6ee9..d96b10f 100644 +--- a/include/asm-arm/arch-at91/board.h ++++ b/include/asm-arm/arch-at91/board.h +@@ -64,6 +64,7 @@ extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) + + /* Ethernet (EMAC & MACB) */ + struct at91_eth_data { ++ u32 phy_mask; + u8 phy_irq_pin; /* PHY IRQ */ + u8 is_rmii; /* using RMII interface? */ + }; +diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h +index 9fd2e32..9b36eb8 100644 +--- a/include/asm-avr32/arch-at32ap/board.h ++++ b/include/asm-avr32/arch-at32ap/board.h +@@ -6,6 +6,8 @@ + + #include <linux/types.h> + ++#define GPIO_PIN_NONE (-1) ++ + /* Add basic devices: system manager, interrupt controller, portmuxes, etc. */ + void at32_add_system_devices(void); + +@@ -21,6 +23,7 @@ void at32_map_usart(unsigned int hw_id, unsigned int line); + struct platform_device *at32_add_device_usart(unsigned int id); + + struct eth_platform_data { ++ u32 phy_mask; + u8 is_rmii; + }; + struct platform_device * +@@ -30,9 +33,41 @@ struct spi_board_info; + struct platform_device * + at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n); + ++struct platform_device *at32_add_device_twi(unsigned int id); ++ ++struct mci_platform_data { ++ int detect_pin; ++ int wp_pin; ++}; ++struct platform_device * ++at32_add_device_mci(unsigned int id, struct mci_platform_data *data); ++ ++struct usba_platform_data { ++ int vbus_pin; ++}; ++struct platform_device * ++at32_add_device_usba(unsigned int id, struct usba_platform_data *data); ++ + struct atmel_lcdfb_info; + struct platform_device * + at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data, + unsigned long fbmem_start, unsigned long fbmem_len); + ++struct platform_device *at32_add_device_ac97c(unsigned int id); ++struct platform_device *at32_add_device_abdac(unsigned int id); ++ ++/* depending on what's hooked up, not all SSC pins will be used */ ++#define ATMEL_SSC_TK 0x01 ++#define ATMEL_SSC_TF 0x02 ++#define ATMEL_SSC_TD 0x04 ++#define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD) ++ ++#define ATMEL_SSC_RK 0x10 ++#define ATMEL_SSC_RF 0x20 ++#define ATMEL_SSC_RD 0x40 ++#define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD) ++ ++struct platform_device * ++at32_add_device_ssc(unsigned int id, unsigned int flags); ++ + #endif /* __ASM_ARCH_BOARD_H */ +diff --git a/include/asm-avr32/arch-at32ap/portmux.h b/include/asm-avr32/arch-at32ap/portmux.h +index 9930871..135e034 100644 +--- a/include/asm-avr32/arch-at32ap/portmux.h ++++ b/include/asm-avr32/arch-at32ap/portmux.h +@@ -19,10 +19,23 @@ + #define AT32_GPIOF_OUTPUT 0x00000002 /* (OUT) Enable output driver */ + #define AT32_GPIOF_HIGH 0x00000004 /* (OUT) Set output high */ + #define AT32_GPIOF_DEGLITCH 0x00000008 /* (IN) Filter glitches */ ++#define AT32_GPIOF_MULTIDRV 0x00000010 /* Enable multidriver option */ + + void at32_select_periph(unsigned int pin, unsigned int periph, + unsigned long flags); + void at32_select_gpio(unsigned int pin, unsigned long flags); + void at32_reserve_pin(unsigned int pin); + ++#ifdef CONFIG_GPIO_DEV ++ ++/* Gang allocators and accessors; used by the GPIO /dev driver */ ++int at32_gpio_port_is_valid(unsigned int port); ++int at32_select_gpio_pins(unsigned int port, u32 pins, u32 oe_mask); ++void at32_deselect_pins(unsigned int port, u32 pins); ++ ++u32 at32_gpio_get_value_multiple(unsigned int port, u32 pins); ++void at32_gpio_set_value_multiple(unsigned int port, u32 value, u32 mask); ++ ++#endif /* CONFIG_GPIO_DEV */ ++ + #endif /* __ASM_ARCH_PORTMUX_H__ */ +diff --git a/include/asm-avr32/arch-at32ap/sm.h b/include/asm-avr32/arch-at32ap/sm.h +deleted file mode 100644 +index 265a9ea..0000000 +--- a/include/asm-avr32/arch-at32ap/sm.h ++++ /dev/null +@@ -1,27 +0,0 @@ +-/* +- * AT32 System Manager interface. +- * +- * Copyright (C) 2006 Atmel Corporation +- * +- * This program is free software; you can redistribute it and/or modify +- * it under the terms of the GNU General Public License version 2 as +- * published by the Free Software Foundation. +- */ +-#ifndef __ASM_AVR32_AT32_SM_H__ +-#define __ASM_AVR32_AT32_SM_H__ +- +-struct irq_chip; +-struct platform_device; +- +-struct at32_sm { +- spinlock_t lock; +- void __iomem *regs; +- struct irq_chip *eim_chip; +- unsigned int eim_first_irq; +- struct platform_device *pdev; +-}; +- +-extern struct platform_device at32_sm_device; +-extern struct at32_sm system_manager; +- +-#endif /* __ASM_AVR32_AT32_SM_H__ */ +diff --git a/include/asm-avr32/dma-controller.h b/include/asm-avr32/dma-controller.h +new file mode 100644 +index 0000000..56a4965 +--- /dev/null ++++ b/include/asm-avr32/dma-controller.h +@@ -0,0 +1,166 @@ ++/* ++ * Copyright (C) 2005-2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#ifndef __ASM_AVR32_DMA_CONTROLLER_H ++#define __ASM_AVR32_DMA_CONTROLLER_H ++ ++#include <linux/device.h> ++ ++#define DMA_DIR_MEM_TO_MEM 0x0000 ++#define DMA_DIR_MEM_TO_PERIPH 0x0001 ++#define DMA_DIR_PERIPH_TO_MEM 0x0002 ++#define DMA_DIR_PERIPH_TO_PERIPH 0x0003 ++ ++#define DMA_WIDTH_8BIT 0 ++#define DMA_WIDTH_16BIT 1 ++#define DMA_WIDTH_32BIT 2 ++ ++struct dma_request { ++ struct dma_controller *dmac; ++ struct list_head list; ++ ++ unsigned short channel; ++ ++ void (*xfer_complete)(struct dma_request *req); ++ void (*block_complete)(struct dma_request *req); ++ void (*error)(struct dma_request *req); ++}; ++ ++struct dma_request_sg { ++ struct dma_request req; ++ ++ int nr_sg; ++ struct scatterlist *sg; ++ unsigned long block_size; ++ unsigned int nr_blocks; ++ ++ dma_addr_t data_reg; ++ unsigned short periph_id; ++ ++ unsigned char direction; ++ unsigned char width; ++}; ++#define to_dma_request_sg(_req) \ ++ container_of(_req, struct dma_request_sg, req) ++ ++struct dma_request_cyclic { ++ struct dma_request req; ++ ++ int periods; ++ unsigned long buffer_size; ++ ++ dma_addr_t buffer_start; ++ dma_addr_t data_reg; ++ ++ unsigned short periph_id; ++ unsigned char direction; ++ unsigned char width; ++ ++ void *dev_id; ++}; ++#define to_dma_request_cyclic(_req) \ ++ container_of(_req, struct dma_request_cyclic, req) ++ ++struct dma_request_memcpy { ++ struct dma_request req; ++ ++ dma_addr_t src_addr; ++ unsigned int src_width; ++ unsigned int src_stride; ++ ++ dma_addr_t dst_addr; ++ unsigned int dst_width; ++ unsigned int dst_stride; ++ ++ size_t length; ++ ++ unsigned short src_reverse:1; ++ unsigned short dst_reverse:1; ++}; ++#define to_dma_request_memcpy(_req) \ ++ container_of(_req, struct dma_request_memcpy, req) ++ ++struct dma_controller { ++ struct list_head list; ++ int id; ++ struct device *dev; ++ ++ int (*alloc_channel)(struct dma_controller *dmac); ++ void (*release_channel)(struct dma_controller *dmac, ++ int channel); ++ int (*prepare_request_sg)(struct dma_controller *dmac, ++ struct dma_request_sg *req); ++ int (*prepare_request_cyclic)(struct dma_controller *dmac, ++ struct dma_request_cyclic *req); ++ int (*prepare_request_memcpy)(struct dma_controller *dmac, ++ struct dma_request_memcpy *req); ++ int (*start_request)(struct dma_controller *dmac, ++ unsigned int channel); ++ int (*stop_request)(struct dma_controller *dmac, ++ unsigned int channel); ++ dma_addr_t (*get_current_pos)(struct dma_controller *dmac, ++ unsigned int channel); ++}; ++ ++static inline int ++dma_alloc_channel(struct dma_controller *dmac) ++{ ++ return dmac->alloc_channel(dmac); ++} ++ ++static inline void ++dma_release_channel(struct dma_controller *dmac, int chan) ++{ ++ dmac->release_channel(dmac, chan); ++} ++ ++static inline int ++dma_prepare_request_sg(struct dma_controller *dmac, ++ struct dma_request_sg *req) ++{ ++ return dmac->prepare_request_sg(dmac, req); ++} ++ ++static inline int ++dma_prepare_request_cyclic(struct dma_controller *dmac, ++ struct dma_request_cyclic *req) ++{ ++ return dmac->prepare_request_cyclic(dmac, req); ++} ++ ++static inline int ++dma_prepare_request_memcpy(struct dma_controller *dmac, ++ struct dma_request_memcpy *req) ++{ ++ return dmac->prepare_request_memcpy(dmac, req); ++} ++ ++static inline int ++dma_start_request(struct dma_controller *dmac, ++ unsigned int channel) ++{ ++ return dmac->start_request(dmac, channel); ++} ++ ++static inline int ++dma_stop_request(struct dma_controller *dmac, ++ unsigned int channel) ++{ ++ return dmac->stop_request(dmac, channel); ++} ++ ++static inline dma_addr_t ++dma_get_current_pos(struct dma_controller *dmac, ++ unsigned int channel) ++{ ++ return dmac->get_current_pos(dmac, channel); ++} ++ ++extern int register_dma_controller(struct dma_controller *dmac); ++extern struct dma_controller *find_dma_controller(int id); ++ ++#endif /* __ASM_AVR32_DMA_CONTROLLER_H */ +diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h +index e30d4b3..64bb92b 100644 +--- a/include/asm-avr32/io.h ++++ b/include/asm-avr32/io.h +@@ -255,6 +255,8 @@ static inline void memset_io(volatile void __iomem *addr, unsigned char val, + memset((void __force *)addr, val, count); + } + ++#define mmiowb() ++ + #define IO_SPACE_LIMIT 0xffffffff + + extern void __iomem *__ioremap(unsigned long offset, size_t size, +diff --git a/include/asm-avr32/pgalloc.h b/include/asm-avr32/pgalloc.h +index bb82e70..0e680f4 100644 +--- a/include/asm-avr32/pgalloc.h ++++ b/include/asm-avr32/pgalloc.h +@@ -27,13 +27,7 @@ static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd, + */ + static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm) + { +- unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t)); +- pgd_t *pgd = kmalloc(pgd_size, GFP_KERNEL); +- +- if (pgd) +- memset(pgd, 0, pgd_size); +- +- return pgd; ++ return kcalloc(USER_PTRS_PER_PGD, sizeof(pgd_t), GFP_KERNEL); + } + + static inline void pgd_free(pgd_t *pgd) +@@ -44,18 +38,9 @@ static inline void pgd_free(pgd_t *pgd) + static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, + unsigned long address) + { +- int count = 0; + pte_t *pte; + +- do { +- pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT); +- if (pte) +- clear_page(pte); +- else { +- current->state = TASK_UNINTERRUPTIBLE; +- schedule_timeout(HZ); +- } +- } while (!pte && (count++ < 10)); ++ pte = (pte_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT); + + return pte; + } +@@ -63,18 +48,9 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, + static inline struct page *pte_alloc_one(struct mm_struct *mm, + unsigned long address) + { +- int count = 0; + struct page *pte; + +- do { +- pte = alloc_pages(GFP_KERNEL, 0); +- if (pte) +- clear_page(page_address(pte)); +- else { +- current->state = TASK_UNINTERRUPTIBLE; +- schedule_timeout(HZ); +- } +- } while (!pte && (count++ < 10)); ++ pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); + + return pte; + } +diff --git a/include/asm-avr32/pgtable.h b/include/asm-avr32/pgtable.h +index f6cc2b0..66e58d7 100644 +--- a/include/asm-avr32/pgtable.h ++++ b/include/asm-avr32/pgtable.h +@@ -32,8 +32,6 @@ + #define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) + #define FIRST_USER_ADDRESS 0 + +-#define PTE_PHYS_MASK 0x1ffff000 +- + #ifndef __ASSEMBLY__ + extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; + extern void paging_init(void); +@@ -293,7 +291,7 @@ static inline pte_t pte_mkyoung(pte_t pte) + * trivial. + */ + #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) +-#define pte_page(x) phys_to_page(pte_val(x) & PTE_PHYS_MASK) ++#define pte_page(x) (pfn_to_page(pte_pfn(x))) + + /* + * Mark the prot value as uncacheable and unbufferable +diff --git a/include/asm-avr32/unaligned.h b/include/asm-avr32/unaligned.h +index 3042723..36f5fd4 100644 +--- a/include/asm-avr32/unaligned.h ++++ b/include/asm-avr32/unaligned.h +@@ -7,19 +7,10 @@ + * words, but halfwords must be halfword-aligned, and doublewords must + * be word-aligned. + * +- * TODO: Make all this CPU-specific and optimize. ++ * However, swapped word loads must be word-aligned so we can't ++ * optimize word loads in general. + */ + +-#include <linux/string.h> +- +-/* Use memmove here, so gcc does not insert a __builtin_memcpy. */ +- +-#define get_unaligned(ptr) \ +- ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; }) +- +-#define put_unaligned(val, ptr) \ +- ({ __typeof__(*(ptr)) __tmp = (val); \ +- memmove((ptr), &__tmp, sizeof(*(ptr))); \ +- (void)0; }) ++#include <asm-generic/unaligned.h> + + #endif /* __ASM_AVR32_UNALIGNED_H */ +diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h +new file mode 100644 +index 0000000..0602339 +--- /dev/null ++++ b/include/linux/atmel-ssc.h +@@ -0,0 +1,312 @@ ++#ifndef __INCLUDE_ATMEL_SSC_H ++#define __INCLUDE_ATMEL_SSC_H ++ ++#include <linux/platform_device.h> ++#include <linux/list.h> ++ ++struct ssc_device { ++ struct list_head list; ++ void __iomem *regs; ++ struct platform_device *pdev; ++ struct clk *clk; ++ int user; ++ int irq; ++}; ++ ++struct ssc_device * __must_check ssc_request(unsigned int ssc_num); ++void ssc_free(struct ssc_device *ssc); ++ ++/* SSC register offsets */ ++ ++/* SSC Control Register */ ++#define SSC_CR 0x00000000 ++#define SSC_CR_RXDIS_SIZE 1 ++#define SSC_CR_RXDIS_OFFSET 1 ++#define SSC_CR_RXEN_SIZE 1 ++#define SSC_CR_RXEN_OFFSET 0 ++#define SSC_CR_SWRST_SIZE 1 ++#define SSC_CR_SWRST_OFFSET 15 ++#define SSC_CR_TXDIS_SIZE 1 ++#define SSC_CR_TXDIS_OFFSET 9 ++#define SSC_CR_TXEN_SIZE 1 ++#define SSC_CR_TXEN_OFFSET 8 ++ ++/* SSC Clock Mode Register */ ++#define SSC_CMR 0x00000004 ++#define SSC_CMR_DIV_SIZE 12 ++#define SSC_CMR_DIV_OFFSET 0 ++ ++/* SSC Receive Clock Mode Register */ ++#define SSC_RCMR 0x00000010 ++#define SSC_RCMR_CKG_SIZE 2 ++#define SSC_RCMR_CKG_OFFSET 6 ++#define SSC_RCMR_CKI_SIZE 1 ++#define SSC_RCMR_CKI_OFFSET 5 ++#define SSC_RCMR_CKO_SIZE 3 ++#define SSC_RCMR_CKO_OFFSET 2 ++#define SSC_RCMR_CKS_SIZE 2 ++#define SSC_RCMR_CKS_OFFSET 0 ++#define SSC_RCMR_PERIOD_SIZE 8 ++#define SSC_RCMR_PERIOD_OFFSET 24 ++#define SSC_RCMR_START_SIZE 4 ++#define SSC_RCMR_START_OFFSET 8 ++#define SSC_RCMR_STOP_SIZE 1 ++#define SSC_RCMR_STOP_OFFSET 12 ++#define SSC_RCMR_STTDLY_SIZE 8 ++#define SSC_RCMR_STTDLY_OFFSET 16 ++ ++/* SSC Receive Frame Mode Register */ ++#define SSC_RFMR 0x00000014 ++#define SSC_RFMR_DATLEN_SIZE 5 ++#define SSC_RFMR_DATLEN_OFFSET 0 ++#define SSC_RFMR_DATNB_SIZE 4 ++#define SSC_RFMR_DATNB_OFFSET 8 ++#define SSC_RFMR_FSEDGE_SIZE 1 ++#define SSC_RFMR_FSEDGE_OFFSET 24 ++#define SSC_RFMR_FSLEN_SIZE 4 ++#define SSC_RFMR_FSLEN_OFFSET 16 ++#define SSC_RFMR_FSOS_SIZE 4 ++#define SSC_RFMR_FSOS_OFFSET 20 ++#define SSC_RFMR_LOOP_SIZE 1 ++#define SSC_RFMR_LOOP_OFFSET 5 ++#define SSC_RFMR_MSBF_SIZE 1 ++#define SSC_RFMR_MSBF_OFFSET 7 ++ ++/* SSC Transmit Clock Mode Register */ ++#define SSC_TCMR 0x00000018 ++#define SSC_TCMR_CKG_SIZE 2 ++#define SSC_TCMR_CKG_OFFSET 6 ++#define SSC_TCMR_CKI_SIZE 1 ++#define SSC_TCMR_CKI_OFFSET 5 ++#define SSC_TCMR_CKO_SIZE 3 ++#define SSC_TCMR_CKO_OFFSET 2 ++#define SSC_TCMR_CKS_SIZE 2 ++#define SSC_TCMR_CKS_OFFSET 0 ++#define SSC_TCMR_PERIOD_SIZE 8 ++#define SSC_TCMR_PERIOD_OFFSET 24 ++#define SSC_TCMR_START_SIZE 4 ++#define SSC_TCMR_START_OFFSET 8 ++#define SSC_TCMR_STTDLY_SIZE 8 ++#define SSC_TCMR_STTDLY_OFFSET 16 ++ ++/* SSC Transmit Frame Mode Register */ ++#define SSC_TFMR 0x0000001c ++#define SSC_TFMR_DATDEF_SIZE 1 ++#define SSC_TFMR_DATDEF_OFFSET 5 ++#define SSC_TFMR_DATLEN_SIZE 5 ++#define SSC_TFMR_DATLEN_OFFSET 0 ++#define SSC_TFMR_DATNB_SIZE 4 ++#define SSC_TFMR_DATNB_OFFSET 8 ++#define SSC_TFMR_FSDEN_SIZE 1 ++#define SSC_TFMR_FSDEN_OFFSET 23 ++#define SSC_TFMR_FSEDGE_SIZE 1 ++#define SSC_TFMR_FSEDGE_OFFSET 24 ++#define SSC_TFMR_FSLEN_SIZE 4 ++#define SSC_TFMR_FSLEN_OFFSET 16 ++#define SSC_TFMR_FSOS_SIZE 3 ++#define SSC_TFMR_FSOS_OFFSET 20 ++#define SSC_TFMR_MSBF_SIZE 1 ++#define SSC_TFMR_MSBF_OFFSET 7 ++ ++/* SSC Receive Hold Register */ ++#define SSC_RHR 0x00000020 ++#define SSC_RHR_RDAT_SIZE 32 ++#define SSC_RHR_RDAT_OFFSET 0 ++ ++/* SSC Transmit Hold Register */ ++#define SSC_THR 0x00000024 ++#define SSC_THR_TDAT_SIZE 32 ++#define SSC_THR_TDAT_OFFSET 0 ++ ++/* SSC Receive Sync. Holding Register */ ++#define SSC_RSHR 0x00000030 ++#define SSC_RSHR_RSDAT_SIZE 16 ++#define SSC_RSHR_RSDAT_OFFSET 0 ++ ++/* SSC Transmit Sync. Holding Register */ ++#define SSC_TSHR 0x00000034 ++#define SSC_TSHR_TSDAT_SIZE 16 ++#define SSC_TSHR_RSDAT_OFFSET 0 ++ ++/* SSC Receive Compare 0 Register */ ++#define SSC_RC0R 0x00000038 ++#define SSC_RC0R_CP0_SIZE 16 ++#define SSC_RC0R_CP0_OFFSET 0 ++ ++/* SSC Receive Compare 1 Register */ ++#define SSC_RC1R 0x0000003c ++#define SSC_RC1R_CP1_SIZE 16 ++#define SSC_RC1R_CP1_OFFSET 0 ++ ++/* SSC Status Register */ ++#define SSC_SR 0x00000040 ++#define SSC_SR_CP0_SIZE 1 ++#define SSC_SR_CP0_OFFSET 8 ++#define SSC_SR_CP1_SIZE 1 ++#define SSC_SR_CP1_OFFSET 9 ++#define SSC_SR_ENDRX_SIZE 1 ++#define SSC_SR_ENDRX_OFFSET 6 ++#define SSC_SR_ENDTX_SIZE 1 ++#define SSC_SR_ENDTX_OFFSET 2 ++#define SSC_SR_OVRUN_SIZE 1 ++#define SSC_SR_OVRUN_OFFSET 5 ++#define SSC_SR_RXBUFF_SIZE 1 ++#define SSC_SR_RXBUFF_OFFSET 7 ++#define SSC_SR_RXEN_SIZE 1 ++#define SSC_SR_RXEN_OFFSET 17 ++#define SSC_SR_RXRDY_SIZE 1 ++#define SSC_SR_RXRDY_OFFSET 4 ++#define SSC_SR_RXSYN_SIZE 1 ++#define SSC_SR_RXSYN_OFFSET 11 ++#define SSC_SR_TXBUFE_SIZE 1 ++#define SSC_SR_TXBUFE_OFFSET 3 ++#define SSC_SR_TXEMPTY_SIZE 1 ++#define SSC_SR_TXEMPTY_OFFSET 1 ++#define SSC_SR_TXEN_SIZE 1 ++#define SSC_SR_TXEN_OFFSET 16 ++#define SSC_SR_TXRDY_SIZE 1 ++#define SSC_SR_TXRDY_OFFSET 0 ++#define SSC_SR_TXSYN_SIZE 1 ++#define SSC_SR_TXSYN_OFFSET 10 ++ ++/* SSC Interrupt Enable Register */ ++#define SSC_IER 0x00000044 ++#define SSC_IER_CP0_SIZE 1 ++#define SSC_IER_CP0_OFFSET 8 ++#define SSC_IER_CP1_SIZE 1 ++#define SSC_IER_CP1_OFFSET 9 ++#define SSC_IER_ENDRX_SIZE 1 ++#define SSC_IER_ENDRX_OFFSET 6 ++#define SSC_IER_ENDTX_SIZE 1 ++#define SSC_IER_ENDTX_OFFSET 2 ++#define SSC_IER_OVRUN_SIZE 1 ++#define SSC_IER_OVRUN_OFFSET 5 ++#define SSC_IER_RXBUFF_SIZE 1 ++#define SSC_IER_RXBUFF_OFFSET 7 ++#define SSC_IER_RXRDY_SIZE 1 ++#define SSC_IER_RXRDY_OFFSET 4 ++#define SSC_IER_RXSYN_SIZE 1 ++#define SSC_IER_RXSYN_OFFSET 11 ++#define SSC_IER_TXBUFE_SIZE 1 ++#define SSC_IER_TXBUFE_OFFSET 3 ++#define SSC_IER_TXEMPTY_SIZE 1 ++#define SSC_IER_TXEMPTY_OFFSET 1 ++#define SSC_IER_TXRDY_SIZE 1 ++#define SSC_IER_TXRDY_OFFSET 0 ++#define SSC_IER_TXSYN_SIZE 1 ++#define SSC_IER_TXSYN_OFFSET 10 ++ ++/* SSC Interrupt Disable Register */ ++#define SSC_IDR 0x00000048 ++#define SSC_IDR_CP0_SIZE 1 ++#define SSC_IDR_CP0_OFFSET 8 ++#define SSC_IDR_CP1_SIZE 1 ++#define SSC_IDR_CP1_OFFSET 9 ++#define SSC_IDR_ENDRX_SIZE 1 ++#define SSC_IDR_ENDRX_OFFSET 6 ++#define SSC_IDR_ENDTX_SIZE 1 ++#define SSC_IDR_ENDTX_OFFSET 2 ++#define SSC_IDR_OVRUN_SIZE 1 ++#define SSC_IDR_OVRUN_OFFSET 5 ++#define SSC_IDR_RXBUFF_SIZE 1 ++#define SSC_IDR_RXBUFF_OFFSET 7 ++#define SSC_IDR_RXRDY_SIZE 1 ++#define SSC_IDR_RXRDY_OFFSET 4 ++#define SSC_IDR_RXSYN_SIZE 1 ++#define SSC_IDR_RXSYN_OFFSET 11 ++#define SSC_IDR_TXBUFE_SIZE 1 ++#define SSC_IDR_TXBUFE_OFFSET 3 ++#define SSC_IDR_TXEMPTY_SIZE 1 ++#define SSC_IDR_TXEMPTY_OFFSET 1 ++#define SSC_IDR_TXRDY_SIZE 1 ++#define SSC_IDR_TXRDY_OFFSET 0 ++#define SSC_IDR_TXSYN_SIZE 1 ++#define SSC_IDR_TXSYN_OFFSET 10 ++ ++/* SSC Interrupt Mask Register */ ++#define SSC_IMR 0x0000004c ++#define SSC_IMR_CP0_SIZE 1 ++#define SSC_IMR_CP0_OFFSET 8 ++#define SSC_IMR_CP1_SIZE 1 ++#define SSC_IMR_CP1_OFFSET 9 ++#define SSC_IMR_ENDRX_SIZE 1 ++#define SSC_IMR_ENDRX_OFFSET 6 ++#define SSC_IMR_ENDTX_SIZE 1 ++#define SSC_IMR_ENDTX_OFFSET 2 ++#define SSC_IMR_OVRUN_SIZE 1 ++#define SSC_IMR_OVRUN_OFFSET 5 ++#define SSC_IMR_RXBUFF_SIZE 1 ++#define SSC_IMR_RXBUFF_OFFSET 7 ++#define SSC_IMR_RXRDY_SIZE 1 ++#define SSC_IMR_RXRDY_OFFSET 4 ++#define SSC_IMR_RXSYN_SIZE 1 ++#define SSC_IMR_RXSYN_OFFSET 11 ++#define SSC_IMR_TXBUFE_SIZE 1 ++#define SSC_IMR_TXBUFE_OFFSET 3 ++#define SSC_IMR_TXEMPTY_SIZE 1 ++#define SSC_IMR_TXEMPTY_OFFSET 1 ++#define SSC_IMR_TXRDY_SIZE 1 ++#define SSC_IMR_TXRDY_OFFSET 0 ++#define SSC_IMR_TXSYN_SIZE 1 ++#define SSC_IMR_TXSYN_OFFSET 10 ++ ++/* SSC PDC Receive Pointer Register */ ++#define SSC_PDC_RPR 0x00000100 ++ ++/* SSC PDC Receive Counter Register */ ++#define SSC_PDC_RCR 0x00000104 ++ ++/* SSC PDC Transmit Pointer Register */ ++#define SSC_PDC_TPR 0x00000108 ++ ++/* SSC PDC Receive Next Pointer Register */ ++#define SSC_PDC_RNPR 0x00000110 ++ ++/* SSC PDC Receive Next Counter Register */ ++#define SSC_PDC_RNCR 0x00000114 ++ ++/* SSC PDC Transmit Counter Register */ ++#define SSC_PDC_TCR 0x0000010c ++ ++/* SSC PDC Transmit Next Pointer Register */ ++#define SSC_PDC_TNPR 0x00000118 ++ ++/* SSC PDC Transmit Next Counter Register */ ++#define SSC_PDC_TNCR 0x0000011c ++ ++/* SSC PDC Transfer Control Register */ ++#define SSC_PDC_PTCR 0x00000120 ++#define SSC_PDC_PTCR_RXTDIS_SIZE 1 ++#define SSC_PDC_PTCR_RXTDIS_OFFSET 1 ++#define SSC_PDC_PTCR_RXTEN_SIZE 1 ++#define SSC_PDC_PTCR_RXTEN_OFFSET 0 ++#define SSC_PDC_PTCR_TXTDIS_SIZE 1 ++#define SSC_PDC_PTCR_TXTDIS_OFFSET 9 ++#define SSC_PDC_PTCR_TXTEN_SIZE 1 ++#define SSC_PDC_PTCR_TXTEN_OFFSET 8 ++ ++/* SSC PDC Transfer Status Register */ ++#define SSC_PDC_PTSR 0x00000124 ++#define SSC_PDC_PTSR_RXTEN_SIZE 1 ++#define SSC_PDC_PTSR_RXTEN_OFFSET 0 ++#define SSC_PDC_PTSR_TXTEN_SIZE 1 ++#define SSC_PDC_PTSR_TXTEN_OFFSET 8 ++ ++/* Bit manipulation macros */ ++#define SSC_BIT(name) \ ++ (1 << SSC_##name##_OFFSET) ++#define SSC_BF(name, value) \ ++ (((value) & ((1 << SSC_##name##_SIZE) - 1)) \ ++ << SSC_##name##_OFFSET) ++#define SSC_BFEXT(name, value) \ ++ (((value) >> SSC_##name##_OFFSET) \ ++ & ((1 << SSC_##name##_SIZE) - 1)) ++#define SSC_BFINS(name, value, old) \ ++ (((old) & ~(((1 << SSC_##name##_SIZE) - 1) \ ++ << SSC_##name##_OFFSET)) | SSC_BF(name, value)) ++ ++/* Register access macros */ ++#define ssc_readl(base, reg) __raw_readl(base + SSC_##reg) ++#define ssc_writel(base, reg, value) __raw_writel((value), base + SSC_##reg) ++ ++#endif /* __INCLUDE_ATMEL_SSC_H */ +diff --git a/include/linux/gpio_mouse.h b/include/linux/gpio_mouse.h +new file mode 100644 +index 0000000..44ed7aa +--- /dev/null ++++ b/include/linux/gpio_mouse.h +@@ -0,0 +1,61 @@ ++/* ++ * Driver for simulating a mouse on GPIO lines. ++ * ++ * Copyright (C) 2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#ifndef _GPIO_MOUSE_H ++#define _GPIO_MOUSE_H ++ ++#define GPIO_MOUSE_POLARITY_ACT_HIGH 0x00 ++#define GPIO_MOUSE_POLARITY_ACT_LOW 0x01 ++ ++#define GPIO_MOUSE_PIN_UP 0 ++#define GPIO_MOUSE_PIN_DOWN 1 ++#define GPIO_MOUSE_PIN_LEFT 2 ++#define GPIO_MOUSE_PIN_RIGHT 3 ++#define GPIO_MOUSE_PIN_BLEFT 4 ++#define GPIO_MOUSE_PIN_BMIDDLE 5 ++#define GPIO_MOUSE_PIN_BRIGHT 6 ++#define GPIO_MOUSE_PIN_MAX 7 ++ ++/** ++ * struct gpio_mouse_platform_data ++ * @scan_ms: integer in ms specifying the scan periode. ++ * @polarity: Pin polarity, active high or low. ++ * @up: GPIO line for up value. ++ * @down: GPIO line for down value. ++ * @left: GPIO line for left value. ++ * @right: GPIO line for right value. ++ * @bleft: GPIO line for left button. ++ * @bmiddle: GPIO line for middle button. ++ * @bright: GPIO line for right button. ++ * ++ * This struct must be added to the platform_device in the board code. ++ * It is used by the gpio_mouse driver to setup GPIO lines and to ++ * calculate mouse movement. ++ */ ++struct gpio_mouse_platform_data { ++ int scan_ms; ++ int polarity; ++ ++ union { ++ struct { ++ int up; ++ int down; ++ int left; ++ int right; ++ ++ int bleft; ++ int bmiddle; ++ int bright; ++ }; ++ int pins[GPIO_MOUSE_PIN_MAX]; ++ }; ++}; ++ ++#endif /* _GPIO_MOUSE_H */ +diff --git a/include/linux/leds.h b/include/linux/leds.h +index 88afcef..059abfe 100644 +--- a/include/linux/leds.h ++++ b/include/linux/leds.h +@@ -110,4 +110,18 @@ extern void ledtrig_ide_activity(void); + #define ledtrig_ide_activity() do {} while(0) + #endif + ++/* For the leds-gpio driver */ ++struct gpio_led { ++ const char *name; ++ char *default_trigger; ++ unsigned gpio; ++ u8 active_low; ++}; ++ ++struct gpio_led_platform_data { ++ int num_leds; ++ struct gpio_led *leds; ++}; ++ ++ + #endif /* __LINUX_LEDS_H_INCLUDED */ +diff --git a/include/linux/spi/at73c213.h b/include/linux/spi/at73c213.h +new file mode 100644 +index 0000000..0f20a70 +--- /dev/null ++++ b/include/linux/spi/at73c213.h +@@ -0,0 +1,25 @@ ++/* ++ * Board-specific data used to set up AT73c213 audio DAC driver. ++ */ ++ ++#ifndef __LINUX_SPI_AT73C213_H ++#define __LINUX_SPI_AT73C213_H ++ ++/** ++ * at73c213_board_info - how the external DAC is wired to the device. ++ * ++ * @ssc_id: SSC platform_driver id the DAC shall use to stream the audio. ++ * @dac_clk: the external clock used to provide master clock to the DAC. ++ * @shortname: a short discription for the DAC, seen by userspace tools. ++ * ++ * This struct contains the configuration of the hardware connection to the ++ * external DAC. The DAC needs a master clock and a I2S audio stream. It also ++ * provides a name which is used to identify it in userspace tools. ++ */ ++struct at73c213_board_info { ++ int ssc_id; ++ struct clk *dac_clk; ++ char shortname[32]; ++}; ++ ++#endif /* __LINUX_SPI_AT73C213_H */ +diff --git a/include/linux/usb/Kbuild b/include/linux/usb/Kbuild +index 43f160c..6ce42bf 100644 +--- a/include/linux/usb/Kbuild ++++ b/include/linux/usb/Kbuild +@@ -1,5 +1,6 @@ + unifdef-y += audio.h + unifdef-y += cdc.h + unifdef-y += ch9.h ++unifdef-y += gadgetfs.h + unifdef-y += midi.h + +diff --git a/include/linux/usb/gadgetfs.h b/include/linux/usb/gadgetfs.h +new file mode 100644 +index 0000000..e8654c3 +--- /dev/null ++++ b/include/linux/usb/gadgetfs.h +@@ -0,0 +1,81 @@ ++#ifndef __LINUX_USB_GADGETFS_H ++#define __LINUX_USB_GADGETFS_H ++ ++#include <asm/types.h> ++#include <asm/ioctl.h> ++ ++#include <linux/usb/ch9.h> ++ ++/* ++ * Filesystem based user-mode API to USB Gadget controller hardware ++ * ++ * Other than ep0 operations, most things are done by read() and write() ++ * on endpoint files found in one directory. They are configured by ++ * writing descriptors, and then may be used for normal stream style ++ * i/o requests. When ep0 is configured, the device can enumerate; ++ * when it's closed, the device disconnects from usb. Operations on ++ * ep0 require ioctl() operations. ++ * ++ * Configuration and device descriptors get written to /dev/gadget/$CHIP, ++ * which may then be used to read usb_gadgetfs_event structs. The driver ++ * may activate endpoints as it handles SET_CONFIGURATION setup events, ++ * or earlier; writing endpoint descriptors to /dev/gadget/$ENDPOINT ++ * then performing data transfers by reading or writing. ++ */ ++ ++/* ++ * Events are delivered on the ep0 file descriptor, when the user mode driver ++ * reads from this file descriptor after writing the descriptors. Don't ++ * stop polling this descriptor. ++ */ ++ ++enum usb_gadgetfs_event_type { ++ GADGETFS_NOP = 0, ++ ++ GADGETFS_CONNECT, ++ GADGETFS_DISCONNECT, ++ GADGETFS_SETUP, ++ GADGETFS_SUSPEND, ++ // and likely more ! ++}; ++ ++/* NOTE: this structure must stay the same size and layout on ++ * both 32-bit and 64-bit kernels. ++ */ ++struct usb_gadgetfs_event { ++ union { ++ // NOP, DISCONNECT, SUSPEND: nothing ++ // ... some hardware can't report disconnection ++ ++ // CONNECT: just the speed ++ enum usb_device_speed speed; ++ ++ // SETUP: packet; DATA phase i/o precedes next event ++ // (setup.bmRequestType & USB_DIR_IN) flags direction ++ // ... includes SET_CONFIGURATION, SET_INTERFACE ++ struct usb_ctrlrequest setup; ++ } u; ++ enum usb_gadgetfs_event_type type; ++}; ++ ++ ++/* endpoint ioctls */ ++ ++/* IN transfers may be reported to the gadget driver as complete ++ * when the fifo is loaded, before the host reads the data; ++ * OUT transfers may be reported to the host's "client" driver as ++ * complete when they're sitting in the FIFO unread. ++ * THIS returns how many bytes are "unclaimed" in the endpoint fifo ++ * (needed for precise fault handling, when the hardware allows it) ++ */ ++#define GADGETFS_FIFO_STATUS _IO('g',1) ++ ++/* discards any unclaimed data in the fifo. */ ++#define GADGETFS_FIFO_FLUSH _IO('g',2) ++ ++/* resets endpoint halt+toggle; used to implement set_interface. ++ * some hardware (like pxa2xx) can't support this. ++ */ ++#define GADGETFS_CLEAR_HALT _IO('g',3) ++ ++#endif /* __LINUX_USB_GADGETFS_H */ +diff --git a/include/linux/usb_gadgetfs.h b/include/linux/usb_gadgetfs.h +deleted file mode 100644 +index 8086d5a..0000000 +--- a/include/linux/usb_gadgetfs.h ++++ /dev/null +@@ -1,75 +0,0 @@ +- +-#include <asm/types.h> +-#include <asm/ioctl.h> +- +-#include <linux/usb/ch9.h> +- +-/* +- * Filesystem based user-mode API to USB Gadget controller hardware +- * +- * Almost everything can be done with only read and write operations, +- * on endpoint files found in one directory. They are configured by +- * writing descriptors, and then may be used for normal stream style +- * i/o requests. When ep0 is configured, the device can enumerate; +- * when it's closed, the device disconnects from usb. +- * +- * Configuration and device descriptors get written to /dev/gadget/$CHIP, +- * which may then be used to read usb_gadgetfs_event structs. The driver +- * may activate endpoints as it handles SET_CONFIGURATION setup events, +- * or earlier; writing endpoint descriptors to /dev/gadget/$ENDPOINT +- * then performing data transfers by reading or writing. +- */ +- +-/* +- * Events are delivered on the ep0 file descriptor, if the user mode driver +- * reads from this file descriptor after writing the descriptors. Don't +- * stop polling this descriptor, if you write that kind of driver. +- */ +- +-enum usb_gadgetfs_event_type { +- GADGETFS_NOP = 0, +- +- GADGETFS_CONNECT, +- GADGETFS_DISCONNECT, +- GADGETFS_SETUP, +- GADGETFS_SUSPEND, +- // and likely more ! +-}; +- +-struct usb_gadgetfs_event { +- enum usb_gadgetfs_event_type type; +- union { +- // NOP, DISCONNECT, SUSPEND: nothing +- // ... some hardware can't report disconnection +- +- // CONNECT: just the speed +- enum usb_device_speed speed; +- +- // SETUP: packet; DATA phase i/o precedes next event +- // (setup.bmRequestType & USB_DIR_IN) flags direction +- // ... includes SET_CONFIGURATION, SET_INTERFACE +- struct usb_ctrlrequest setup; +- } u; +-}; +- +- +-/* endpoint ioctls */ +- +-/* IN transfers may be reported to the gadget driver as complete +- * when the fifo is loaded, before the host reads the data; +- * OUT transfers may be reported to the host's "client" driver as +- * complete when they're sitting in the FIFO unread. +- * THIS returns how many bytes are "unclaimed" in the endpoint fifo +- * (needed for precise fault handling, when the hardware allows it) +- */ +-#define GADGETFS_FIFO_STATUS _IO('g',1) +- +-/* discards any unclaimed data in the fifo. */ +-#define GADGETFS_FIFO_FLUSH _IO('g',2) +- +-/* resets endpoint halt+toggle; used to implement set_interface. +- * some hardware (like pxa2xx) can't support this. +- */ +-#define GADGETFS_CLEAR_HALT _IO('g',3) +- +- +diff --git a/init/do_mounts.c b/init/do_mounts.c +index 46fe407..efc134c 100644 +--- a/init/do_mounts.c ++++ b/init/do_mounts.c +@@ -25,6 +25,7 @@ int __initdata rd_doload; /* 1 = load RAM disk, 0 = don't load */ + int root_mountflags = MS_RDONLY | MS_SILENT; + char * __initdata root_device_name; + static char __initdata saved_root_name[64]; ++int __initdata root_wait; + + dev_t ROOT_DEV; + +@@ -216,6 +217,14 @@ static int __init root_dev_setup(char *line) + + __setup("root=", root_dev_setup); + ++static int __init rootwait_setup(char *line) ++{ ++ root_wait = simple_strtol(line,NULL,0); ++ return 1; ++} ++ ++__setup("rootwait=", rootwait_setup); ++ + static char * __initdata root_mount_data; + static int __init root_data_setup(char *str) + { +@@ -438,11 +447,24 @@ void __init prepare_namespace(void) + root_device_name += 5; + } + +- is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR; +- + if (initrd_load()) + goto out; + ++ /* wait for any asynchronous scanning to complete */ ++ if ((ROOT_DEV == 0) && root_wait) { ++ printk(KERN_INFO "Waiting for root device %s...\n", ++ saved_root_name); ++ do { ++ while (driver_probe_done() != 0) ++ msleep(100); ++ ROOT_DEV = name_to_dev_t(saved_root_name); ++ if (ROOT_DEV == 0) ++ msleep(100); ++ } while (ROOT_DEV == 0); ++ } ++ ++ is_floppy = MAJOR(ROOT_DEV) == FLOPPY_MAJOR; ++ + if (is_floppy && rd_doload && rd_load_disk(0)) + ROOT_DEV = Root_RAM0; + +diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl +index f7844f6..6631586 100755 +--- a/scripts/checkstack.pl ++++ b/scripts/checkstack.pl +@@ -12,6 +12,7 @@ + # sh64 port by Paul Mundt + # Random bits by Matt Mackall <mpm@selenic.com> + # M68k port by Geert Uytterhoeven and Andreas Schwab ++# AVR32 port by Haavard Skinnemoen <hskinnemoen@atmel.com> + # + # Usage: + # objdump -d vmlinux | stackcheck.pl [arch] +@@ -37,6 +38,10 @@ my (@stack, $re, $x, $xs); + if ($arch eq 'arm') { + #c0008ffc: e24dd064 sub sp, sp, #100 ; 0x64 + $re = qr/.*sub.*sp, sp, #(([0-9]{2}|[3-9])[0-9]{2})/o; ++ } elsif ($arch eq 'avr32') { ++ #8000008a: 20 1d sub sp,4 ++ #80000ca8: fa cd 05 b0 sub sp,sp,1456 ++ $re = qr/^.*sub.*sp.*,([0-9]{1,8})/o; + } elsif ($arch =~ /^i[3456]86$/) { + #c0105234: 81 ec ac 05 00 00 sub $0x5ac,%esp + $re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%esp$/o; +diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c +index 8b809b2..9ff8502 100644 +--- a/scripts/kallsyms.c ++++ b/scripts/kallsyms.c +@@ -378,6 +378,17 @@ static void build_initial_tok_table(void) + table_cnt = pos; + } + ++static void *find_token(unsigned char *str, int len, unsigned char *token) ++{ ++ int i; ++ ++ for (i = 0; i < len - 1; i++) { ++ if (str[i] == token[0] && str[i+1] == token[1]) ++ return &str[i]; ++ } ++ return NULL; ++} ++ + /* replace a given token in all the valid symbols. Use the sampled symbols + * to update the counts */ + static void compress_symbols(unsigned char *str, int idx) +@@ -391,7 +402,7 @@ static void compress_symbols(unsigned char *str, int idx) + p1 = table[i].sym; + + /* find the token on the symbol */ +- p2 = memmem(p1, len, str, 2); ++ p2 = find_token(p1, len, str); + if (!p2) continue; + + /* decrease the counts for this symbol's tokens */ +@@ -410,7 +421,7 @@ static void compress_symbols(unsigned char *str, int idx) + if (size < 2) break; + + /* find the token on the symbol */ +- p2 = memmem(p1, size, str, 2); ++ p2 = find_token(p1, size, str); + + } while (p2); + +diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h +index 0858caa..91ed78f 100644 +--- a/scripts/mod/modpost.h ++++ b/scripts/mod/modpost.h +@@ -9,6 +9,11 @@ + #include <unistd.h> + #include <elf.h> + ++#ifdef __APPLE__ ++typedef uint16_t Elf32_Section; ++typedef uint16_t Elf64_Section; ++#endif ++ + #include "elfconfig.h" + + #if KERNEL_ELFCLASS == ELFCLASS32 +diff --git a/sound/Kconfig b/sound/Kconfig +index 9ea4738..f0551c8 100644 +--- a/sound/Kconfig ++++ b/sound/Kconfig +@@ -63,6 +63,12 @@ source "sound/aoa/Kconfig" + + source "sound/arm/Kconfig" + ++source "sound/avr32/Kconfig" ++ ++if SPI ++source "sound/spi/Kconfig" ++endif ++ + source "sound/mips/Kconfig" + + # the following will depend on the order of config. +diff --git a/sound/Makefile b/sound/Makefile +index b7c7fb7..25f6042 100644 +--- a/sound/Makefile ++++ b/sound/Makefile +@@ -5,7 +5,9 @@ obj-$(CONFIG_SOUND) += soundcore.o + obj-$(CONFIG_SOUND_PRIME) += sound_firmware.o + obj-$(CONFIG_SOUND_PRIME) += oss/ + obj-$(CONFIG_DMASOUND) += oss/ +-obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ synth/ usb/ sparc/ parisc/ pcmcia/ mips/ soc/ ++obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ avr32/ synth/ usb/ \ ++ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ ++ + obj-$(CONFIG_SND_AOA) += aoa/ + + # This one must be compilable even if sound is configured out +diff --git a/sound/avr32/Kconfig b/sound/avr32/Kconfig +new file mode 100644 +index 0000000..17d1d91 +--- /dev/null ++++ b/sound/avr32/Kconfig +@@ -0,0 +1,11 @@ ++menu "AVR32 devices" ++ depends on SND != n && AVR32 ++ ++config SND_ATMEL_AC97 ++ tristate "Atmel AC97 Controller Driver" ++ select SND_PCM ++ select SND_AC97_CODEC ++ help ++ ALSA sound driver for the Atmel AC97 controller. ++ ++endmenu +diff --git a/sound/avr32/Makefile b/sound/avr32/Makefile +new file mode 100644 +index 0000000..5d87d0e +--- /dev/null ++++ b/sound/avr32/Makefile +@@ -0,0 +1,3 @@ ++snd-atmel-ac97-objs := ac97c.o ++ ++obj-$(CONFIG_SND_ATMEL_AC97) += snd-atmel-ac97.o +diff --git a/sound/avr32/ac97c.c b/sound/avr32/ac97c.c +new file mode 100644 +index 0000000..0ec0b1c +--- /dev/null ++++ b/sound/avr32/ac97c.c +@@ -0,0 +1,914 @@ ++/* ++ * Driver for the Atmel AC97 controller ++ * ++ * Copyright (C) 2005-2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ */ ++#include <linux/clk.h> ++#include <linux/delay.h> ++#include <linux/dma-mapping.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/mutex.h> ++#include <linux/io.h> ++ ++#include <sound/driver.h> ++#include <sound/core.h> ++#include <sound/initval.h> ++#include <sound/pcm.h> ++#include <sound/pcm_params.h> ++#include <sound/ac97_codec.h> ++#include <sound/memalloc.h> ++ ++#include <asm/dma-controller.h> ++ ++#include "ac97c.h" ++ ++/* Serialize access to opened */ ++static DEFINE_MUTEX(opened_mutex); ++ ++struct atmel_ac97_dma_info { ++ struct dma_request_cyclic req_tx; ++ struct dma_request_cyclic req_rx; ++ unsigned short rx_periph_id; ++ unsigned short tx_periph_id; ++}; ++ ++struct atmel_ac97 { ++ /* Serialize access to opened */ ++ spinlock_t lock; ++ void __iomem *regs; ++ struct snd_pcm_substream *playback_substream; ++ struct snd_pcm_substream *capture_substream; ++ struct snd_card *card; ++ struct snd_pcm *pcm; ++ struct snd_ac97 *ac97; ++ struct snd_ac97_bus *ac97_bus; ++ int opened; ++ int period; ++ u64 cur_format; ++ unsigned int cur_rate; ++ struct clk *mck; ++ struct platform_device *pdev; ++ struct atmel_ac97_dma_info dma; ++}; ++ ++#define get_chip(card) ((struct atmel_ac97 *)(card)->private_data) ++ ++#define ac97c_writel(chip, reg, val) \ ++ __raw_writel((val), (chip)->regs + AC97C_##reg) ++#define ac97c_readl(chip, reg) \ ++ __raw_readl((chip)->regs + AC97C_##reg) ++ ++/* ++ * PCM part ++ */ ++static struct snd_pcm_hardware snd_atmel_ac97_playback_hw = { ++ .info = (SNDRV_PCM_INFO_INTERLEAVED ++ | SNDRV_PCM_INFO_MMAP ++ | SNDRV_PCM_INFO_MMAP_VALID ++ | SNDRV_PCM_INFO_BLOCK_TRANSFER ++ | SNDRV_PCM_INFO_JOINT_DUPLEX), ++ .formats = (SNDRV_PCM_FMTBIT_S16_BE ++ | SNDRV_PCM_FMTBIT_S16_LE), ++ .rates = (SNDRV_PCM_RATE_CONTINUOUS), ++ .rate_min = 4000, ++ .rate_max = 48000, ++ .channels_min = 1, ++ .channels_max = 6, ++ .buffer_bytes_max = 64*1024, ++ .period_bytes_min = 512, ++ .period_bytes_max = 4095, ++ .periods_min = 8, ++ .periods_max = 1024, ++}; ++ ++static struct snd_pcm_hardware snd_atmel_ac97_capture_hw = { ++ .info = (SNDRV_PCM_INFO_INTERLEAVED ++ | SNDRV_PCM_INFO_MMAP ++ | SNDRV_PCM_INFO_MMAP_VALID ++ | SNDRV_PCM_INFO_BLOCK_TRANSFER ++ | SNDRV_PCM_INFO_JOINT_DUPLEX), ++ .formats = (SNDRV_PCM_FMTBIT_S16_BE ++ | SNDRV_PCM_FMTBIT_S16_LE), ++ .rates = (SNDRV_PCM_RATE_CONTINUOUS), ++ .rate_min = 4000, ++ .rate_max = 48000, ++ .channels_min = 1, ++ .channels_max = 2, ++ .buffer_bytes_max = 64*1024, ++ .period_bytes_min = 512, ++ .period_bytes_max = 4095, ++ .periods_min = 8, ++ .periods_max = 1024, ++}; ++ ++/* ++ * PCM functions ++ */ ++static int ++snd_atmel_ac97_playback_open(struct snd_pcm_substream *substream) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ ++ mutex_lock(&opened_mutex); ++ chip->opened++; ++ runtime->hw = snd_atmel_ac97_playback_hw; ++ if (chip->cur_rate) { ++ runtime->hw.rate_min = chip->cur_rate; ++ runtime->hw.rate_max = chip->cur_rate; ++ } ++ if (chip->cur_format) ++ runtime->hw.formats = (1ULL << chip->cur_format); ++ mutex_unlock(&opened_mutex); ++ chip->playback_substream = substream; ++ chip->period = 0; ++ return 0; ++} ++ ++static int ++snd_atmel_ac97_capture_open(struct snd_pcm_substream *substream) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ ++ mutex_lock(&opened_mutex); ++ chip->opened++; ++ runtime->hw = snd_atmel_ac97_capture_hw; ++ if (chip->cur_rate) { ++ runtime->hw.rate_min = chip->cur_rate; ++ runtime->hw.rate_max = chip->cur_rate; ++ } ++ if (chip->cur_format) ++ runtime->hw.formats = (1ULL << chip->cur_format); ++ mutex_unlock(&opened_mutex); ++ chip->capture_substream = substream; ++ chip->period = 0; ++ return 0; ++} ++ ++static int snd_atmel_ac97_playback_close(struct snd_pcm_substream *substream) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ mutex_lock(&opened_mutex); ++ chip->opened--; ++ if (!chip->opened) { ++ chip->cur_rate = 0; ++ chip->cur_format = 0; ++ } ++ mutex_unlock(&opened_mutex); ++ return 0; ++} ++ ++static int snd_atmel_ac97_capture_close(struct snd_pcm_substream *substream) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ mutex_lock(&opened_mutex); ++ chip->opened--; ++ if (!chip->opened) { ++ chip->cur_rate = 0; ++ chip->cur_format = 0; ++ } ++ mutex_unlock(&opened_mutex); ++ return 0; ++} ++ ++static int ++snd_atmel_ac97_playback_hw_params(struct snd_pcm_substream *substream, ++ struct snd_pcm_hw_params *hw_params) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ int err; ++ ++ err = snd_pcm_lib_malloc_pages(substream, ++ params_buffer_bytes(hw_params)); ++ if (err < 0) ++ return err; ++ ++ /* Set restrictions to params */ ++ mutex_lock(&opened_mutex); ++ chip->cur_rate = params_rate(hw_params); ++ chip->cur_format = params_format(hw_params); ++ mutex_unlock(&opened_mutex); ++ ++ return 0; ++} ++ ++static int ++snd_atmel_ac97_capture_hw_params(struct snd_pcm_substream *substream, ++ struct snd_pcm_hw_params *hw_params) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ int err; ++ ++ err = snd_pcm_lib_malloc_pages(substream, ++ params_buffer_bytes(hw_params)); ++ if (err < 0) ++ return err; ++ ++ /* Set restrictions to params */ ++ mutex_lock(&opened_mutex); ++ chip->cur_rate = params_rate(hw_params); ++ chip->cur_format = params_format(hw_params); ++ mutex_unlock(&opened_mutex); ++ ++ return 0; ++} ++ ++static int snd_atmel_ac97_playback_hw_free(struct snd_pcm_substream *substream) ++{ ++ return snd_pcm_lib_free_pages(substream); ++} ++ ++static int snd_atmel_ac97_capture_hw_free(struct snd_pcm_substream *substream) ++{ ++ ++ return snd_pcm_lib_free_pages(substream); ++} ++ ++static int snd_atmel_ac97_playback_prepare(struct snd_pcm_substream *substream) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ struct platform_device *pdev = chip->pdev; ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ int block_size = frames_to_bytes(runtime, runtime->period_size); ++ unsigned long word = 0; ++ unsigned long buffer_size = 0; ++ ++ dma_sync_single_for_device(&pdev->dev, runtime->dma_addr, ++ block_size * 2, DMA_TO_DEVICE); ++ ++ /* Assign slots to channels */ ++ switch (substream->runtime->channels) { ++ case 1: ++ word |= AC97C_CH_ASSIGN(PCM_LEFT, A); ++ break; ++ case 2: ++ /* Assign Left and Right slot to Channel A */ ++ word |= AC97C_CH_ASSIGN(PCM_LEFT, A) ++ | AC97C_CH_ASSIGN(PCM_RIGHT, A); ++ break; ++ default: ++ /* TODO: support more than two channels */ ++ return -EINVAL; ++ break; ++ } ++ ac97c_writel(chip, OCA, word); ++ ++ /* Configure sample format and size */ ++ word = AC97C_CMR_PDCEN | AC97C_CMR_SIZE_16; ++ ++ switch (runtime->format) { ++ case SNDRV_PCM_FORMAT_S16_LE: ++ word |= AC97C_CMR_CEM_LITTLE; ++ break; ++ case SNDRV_PCM_FORMAT_S16_BE: /* fall through */ ++ default: ++ word &= ~AC97C_CMR_CEM_LITTLE; ++ break; ++ } ++ ++ ac97c_writel(chip, CAMR, word); ++ ++ /* Set variable rate if needed */ ++ if (runtime->rate != 48000) { ++ word = ac97c_readl(chip, MR); ++ word |= AC97C_MR_VRA; ++ ac97c_writel(chip, MR, word); ++ } else { ++ /* Clear Variable Rate Bit */ ++ word = ac97c_readl(chip, MR); ++ word &= ~AC97C_MR_VRA; ++ ac97c_writel(chip, MR, word); ++ } ++ ++ /* Set rate */ ++ snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate); ++ ++ buffer_size = frames_to_bytes(runtime, runtime->period_size) * ++ runtime->periods; ++ ++ chip->dma.req_tx.buffer_size = buffer_size; ++ chip->dma.req_tx.periods = runtime->periods; ++ ++ BUG_ON(chip->dma.req_tx.buffer_size != ++ (chip->dma.req_tx.periods * ++ frames_to_bytes(runtime, runtime->period_size))); ++ ++ chip->dma.req_tx.buffer_start = runtime->dma_addr; ++ chip->dma.req_tx.data_reg = (dma_addr_t)(chip->regs + AC97C_CATHR + 2); ++ chip->dma.req_tx.periph_id = chip->dma.tx_periph_id; ++ chip->dma.req_tx.direction = DMA_DIR_MEM_TO_PERIPH; ++ chip->dma.req_tx.width = DMA_WIDTH_16BIT; ++ chip->dma.req_tx.dev_id = chip; ++ ++ return 0; ++} ++ ++static int snd_atmel_ac97_capture_prepare(struct snd_pcm_substream *substream) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ struct platform_device *pdev = chip->pdev; ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ int block_size = frames_to_bytes(runtime, runtime->period_size); ++ unsigned long word = 0; ++ unsigned long buffer_size = 0; ++ ++ dma_sync_single_for_device(&pdev->dev, runtime->dma_addr, ++ block_size * 2, DMA_FROM_DEVICE); ++ ++ /* Assign slots to channels */ ++ switch (substream->runtime->channels) { ++ case 1: ++ word |= AC97C_CH_ASSIGN(PCM_LEFT, A); ++ break; ++ case 2: ++ /* Assign Left and Right slot to Channel A */ ++ word |= AC97C_CH_ASSIGN(PCM_LEFT, A) ++ | AC97C_CH_ASSIGN(PCM_RIGHT, A); ++ break; ++ default: ++ /* TODO: support more than two channels */ ++ return -EINVAL; ++ break; ++ } ++ ac97c_writel(chip, ICA, word); ++ ++ /* Configure sample format and size */ ++ word = AC97C_CMR_PDCEN | AC97C_CMR_SIZE_16; ++ ++ switch (runtime->format) { ++ case SNDRV_PCM_FORMAT_S16_LE: ++ word |= AC97C_CMR_CEM_LITTLE; ++ break; ++ case SNDRV_PCM_FORMAT_S16_BE: ++ default: ++ word &= ~(AC97C_CMR_CEM_LITTLE); ++ break; ++ } ++ ++ ac97c_writel(chip, CAMR, word); ++ ++ /* Set variable rate if needed */ ++ if (runtime->rate != 48000) { ++ word = ac97c_readl(chip, MR); ++ word |= AC97C_MR_VRA; ++ ac97c_writel(chip, MR, word); ++ } else { ++ /* Clear Variable Rate Bit */ ++ word = ac97c_readl(chip, MR); ++ word &= ~(AC97C_MR_VRA); ++ ac97c_writel(chip, MR, word); ++ } ++ ++ /* Set rate */ ++ snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate); ++ ++ buffer_size = frames_to_bytes(runtime, runtime->period_size) * ++ runtime->periods; ++ ++ chip->dma.req_rx.buffer_size = buffer_size; ++ chip->dma.req_rx.periods = runtime->periods; ++ ++ BUG_ON(chip->dma.req_rx.buffer_size != ++ (chip->dma.req_rx.periods * ++ frames_to_bytes(runtime, runtime->period_size))); ++ ++ chip->dma.req_rx.buffer_start = runtime->dma_addr; ++ chip->dma.req_rx.data_reg = (dma_addr_t)(chip->regs + AC97C_CARHR + 2); ++ chip->dma.req_rx.periph_id = chip->dma.rx_periph_id; ++ chip->dma.req_rx.direction = DMA_DIR_PERIPH_TO_MEM; ++ chip->dma.req_rx.width = DMA_WIDTH_16BIT; ++ chip->dma.req_rx.dev_id = chip; ++ ++ return 0; ++} ++ ++ static int ++snd_atmel_ac97_playback_trigger(struct snd_pcm_substream *substream, int cmd) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ unsigned long camr; ++ int flags, err = 0; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ camr = ac97c_readl(chip, CAMR); ++ ++ switch (cmd) { ++ case SNDRV_PCM_TRIGGER_START: ++ err = dma_prepare_request_cyclic(chip->dma.req_tx.req.dmac, ++ &chip->dma.req_tx); ++ dma_start_request(chip->dma.req_tx.req.dmac, ++ chip->dma.req_tx.req.channel); ++ camr |= AC97C_CMR_CENA; ++ break; ++ case SNDRV_PCM_TRIGGER_STOP: ++ err = dma_stop_request(chip->dma.req_tx.req.dmac, ++ chip->dma.req_tx.req.channel); ++ if (chip->opened <= 1) ++ camr &= ~AC97C_CMR_CENA; ++ break; ++ default: ++ err = -EINVAL; ++ break; ++ } ++ ++ ac97c_writel(chip, CAMR, camr); ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ return err; ++} ++ ++ static int ++snd_atmel_ac97_capture_trigger(struct snd_pcm_substream *substream, int cmd) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ unsigned long camr; ++ int flags, err = 0; ++ ++ spin_lock_irqsave(&chip->lock, flags); ++ camr = ac97c_readl(chip, CAMR); ++ ++ switch (cmd) { ++ case SNDRV_PCM_TRIGGER_START: ++ err = dma_prepare_request_cyclic(chip->dma.req_rx.req.dmac, ++ &chip->dma.req_rx); ++ dma_start_request(chip->dma.req_rx.req.dmac, ++ chip->dma.req_rx.req.channel); ++ camr |= AC97C_CMR_CENA; ++ break; ++ case SNDRV_PCM_TRIGGER_STOP: ++ err = dma_stop_request(chip->dma.req_rx.req.dmac, ++ chip->dma.req_rx.req.channel); ++ mutex_lock(&opened_mutex); ++ if (chip->opened <= 1) ++ camr &= ~AC97C_CMR_CENA; ++ mutex_unlock(&opened_mutex); ++ break; ++ default: ++ err = -EINVAL; ++ break; ++ } ++ ++ ac97c_writel(chip, CAMR, camr); ++ ++ spin_unlock_irqrestore(&chip->lock, flags); ++ return err; ++} ++ ++ static snd_pcm_uframes_t ++snd_atmel_ac97_playback_pointer(struct snd_pcm_substream *substream) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ snd_pcm_uframes_t pos; ++ unsigned long bytes; ++ ++ bytes = (dma_get_current_pos ++ (chip->dma.req_tx.req.dmac, ++ chip->dma.req_tx.req.channel) - runtime->dma_addr); ++ pos = bytes_to_frames(runtime, bytes); ++ if (pos >= runtime->buffer_size) ++ pos -= runtime->buffer_size; ++ ++ return pos; ++} ++ ++ static snd_pcm_uframes_t ++snd_atmel_ac97_capture_pointer(struct snd_pcm_substream *substream) ++{ ++ struct atmel_ac97 *chip = snd_pcm_substream_chip(substream); ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ snd_pcm_uframes_t pos; ++ unsigned long bytes; ++ ++ bytes = (dma_get_current_pos ++ (chip->dma.req_rx.req.dmac, ++ chip->dma.req_rx.req.channel) ++ - runtime->dma_addr); ++ pos = bytes_to_frames(runtime, bytes); ++ if (pos >= runtime->buffer_size) ++ pos -= runtime->buffer_size; ++ ++ ++ return pos; ++} ++ ++static struct snd_pcm_ops atmel_ac97_playback_ops = { ++ .open = snd_atmel_ac97_playback_open, ++ .close = snd_atmel_ac97_playback_close, ++ .ioctl = snd_pcm_lib_ioctl, ++ .hw_params = snd_atmel_ac97_playback_hw_params, ++ .hw_free = snd_atmel_ac97_playback_hw_free, ++ .prepare = snd_atmel_ac97_playback_prepare, ++ .trigger = snd_atmel_ac97_playback_trigger, ++ .pointer = snd_atmel_ac97_playback_pointer, ++}; ++ ++static struct snd_pcm_ops atmel_ac97_capture_ops = { ++ .open = snd_atmel_ac97_capture_open, ++ .close = snd_atmel_ac97_capture_close, ++ .ioctl = snd_pcm_lib_ioctl, ++ .hw_params = snd_atmel_ac97_capture_hw_params, ++ .hw_free = snd_atmel_ac97_capture_hw_free, ++ .prepare = snd_atmel_ac97_capture_prepare, ++ .trigger = snd_atmel_ac97_capture_trigger, ++ .pointer = snd_atmel_ac97_capture_pointer, ++}; ++ ++static struct ac97_pcm atmel_ac97_pcm_defs[] __devinitdata = { ++ /* Playback */ ++ { ++ .exclusive = 1, ++ .r = { { ++ .slots = ((1 << AC97_SLOT_PCM_LEFT) ++ | (1 << AC97_SLOT_PCM_RIGHT) ++ | (1 << AC97_SLOT_PCM_CENTER) ++ | (1 << AC97_SLOT_PCM_SLEFT) ++ | (1 << AC97_SLOT_PCM_SRIGHT) ++ | (1 << AC97_SLOT_LFE)), ++ } } ++ }, ++ /* PCM in */ ++ { ++ .stream = 1, ++ .exclusive = 1, ++ .r = { { ++ .slots = ((1 << AC97_SLOT_PCM_LEFT) ++ | (1 << AC97_SLOT_PCM_RIGHT)), ++ } } ++ }, ++ /* Mic in */ ++ { ++ .stream = 1, ++ .exclusive = 1, ++ .r = { { ++ .slots = (1<<AC97_SLOT_MIC), ++ } } ++ }, ++}; ++ ++static int __devinit snd_atmel_ac97_pcm_new(struct atmel_ac97 *chip) ++{ ++ struct snd_pcm *pcm; ++ int err; ++ ++ err = snd_ac97_pcm_assign(chip->ac97_bus, ++ ARRAY_SIZE(atmel_ac97_pcm_defs), ++ atmel_ac97_pcm_defs); ++ if (err) ++ return err; ++ ++ err = snd_pcm_new(chip->card, "Atmel-AC97", 0, 1, 1, &pcm); ++ if (err) ++ return err; ++ ++ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, ++ &atmel_ac97_playback_ops); ++ ++ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, ++ &atmel_ac97_capture_ops); ++ ++ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, ++ &chip->pdev->dev, ++ 128 * 1024, 128 * 1024); ++ ++ pcm->private_data = chip; ++ pcm->info_flags = 0; ++ strcpy(pcm->name, "Atmel-AC97"); ++ chip->pcm = pcm; ++ ++ return 0; ++} ++ ++/* ++ * Mixer part. ++ */ ++static int snd_atmel_ac97_mixer_new(struct atmel_ac97 *chip) ++{ ++ int err; ++ struct snd_ac97_template template; ++ ++ memset(&template, 0, sizeof(template)); ++ template.private_data = chip; ++ err = snd_ac97_mixer(chip->ac97_bus, &template, &chip->ac97); ++ ++ return err; ++} ++ ++static void atmel_ac97_error(struct dma_request *_req) ++{ ++ struct dma_request_cyclic *req = to_dma_request_cyclic(_req); ++ struct atmel_ac97 *chip = req->dev_id; ++ ++ dev_dbg(&chip->pdev->dev, "DMA Controller error, channel %d\n", ++ req->req.channel); ++} ++ ++static void atmel_ac97_block_complete(struct dma_request *_req) ++{ ++ struct dma_request_cyclic *req = to_dma_request_cyclic(_req); ++ struct atmel_ac97 *chip = req->dev_id; ++ if (req->periph_id == chip->dma.tx_periph_id) ++ snd_pcm_period_elapsed(chip->playback_substream); ++ else ++ snd_pcm_period_elapsed(chip->capture_substream); ++} ++ ++/* ++ * Codec part. ++ */ ++static void snd_atmel_ac97_write(struct snd_ac97 *ac97, unsigned short reg, ++ unsigned short val) ++{ ++ struct atmel_ac97 *chip = get_chip(ac97); ++ unsigned long word; ++ int timeout = 40; ++ ++ word = (reg & 0x7f) << 16 | val; ++ ++ do { ++ if (ac97c_readl(chip, COSR) & AC97C_CSR_TXRDY) { ++ ac97c_writel(chip, COTHR, word); ++ return; ++ } ++ udelay(1); ++ } while (--timeout); ++ ++ dev_dbg(&chip->pdev->dev, "codec write timeout\n"); ++} ++ ++static unsigned short snd_atmel_ac97_read(struct snd_ac97 *ac97, ++ unsigned short reg) ++{ ++ struct atmel_ac97 *chip = get_chip(ac97); ++ unsigned long word; ++ int timeout = 40; ++ int write = 10; ++ ++ word = (0x80 | (reg & 0x7f)) << 16; ++ ++ if ((ac97c_readl(chip, COSR) & AC97C_CSR_RXRDY) != 0) ++ ac97c_readl(chip, CORHR); ++ ++retry_write: ++ timeout = 40; ++ ++ do { ++ if ((ac97c_readl(chip, COSR) & AC97C_CSR_TXRDY) != 0) { ++ ac97c_writel(chip, COTHR, word); ++ goto read_reg; ++ } ++ mdelay(10); ++ } while (--timeout); ++ ++ if (!--write) ++ goto timed_out; ++ goto retry_write; ++ ++read_reg: ++ do { ++ if ((ac97c_readl(chip, COSR) & AC97C_CSR_RXRDY) != 0) { ++ unsigned short val = ac97c_readl(chip, CORHR); ++ return val; ++ } ++ mdelay(10); ++ } while (--timeout); ++ ++ if (!--write) ++ goto timed_out; ++ goto retry_write; ++ ++timed_out: ++ dev_dbg(&chip->pdev->dev, "codec read timeout\n"); ++ return 0xffff; ++} ++ ++static void snd_atmel_ac97_reset(struct atmel_ac97 *chip) ++{ ++ ac97c_writel(chip, MR, AC97C_MR_WRST); ++ mdelay(1); ++ ac97c_writel(chip, MR, AC97C_MR_ENA); ++} ++ ++static void snd_atmel_ac97_destroy(struct snd_card *card) ++{ ++ struct atmel_ac97 *chip = get_chip(card); ++ ++ if (chip->regs) ++ iounmap(chip->regs); ++ ++ if (chip->mck) { ++ clk_disable(chip->mck); ++ clk_put(chip->mck); ++ } ++ ++ if (chip->dma.req_tx.req.dmac) { ++ dma_release_channel(chip->dma.req_tx.req.dmac, ++ chip->dma.req_tx.req.channel); ++ } ++ if (chip->dma.req_rx.req.dmac) { ++ dma_release_channel(chip->dma.req_rx.req.dmac, ++ chip->dma.req_rx.req.channel); ++ } ++} ++ ++static int __devinit snd_atmel_ac97_create(struct snd_card *card, ++ struct platform_device *pdev) ++{ ++ static struct snd_ac97_bus_ops ops = { ++ .write = snd_atmel_ac97_write, ++ .read = snd_atmel_ac97_read, ++ }; ++ struct atmel_ac97 *chip = get_chip(card); ++ struct resource *regs; ++ struct clk *mck; ++ int err; ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) ++ return -ENXIO; ++ ++ mck = clk_get(&pdev->dev, "pclk"); ++ if (IS_ERR(mck)) ++ return PTR_ERR(mck); ++ clk_enable(mck); ++ chip->mck = mck; ++ ++ card->private_free = snd_atmel_ac97_destroy; ++ ++ spin_lock_init(&chip->lock); ++ chip->card = card; ++ chip->pdev = pdev; ++ ++ chip->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!chip->regs) ++ return -ENOMEM; ++ ++ snd_card_set_dev(card, &pdev->dev); ++ ++ err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus); ++ ++ return err; ++} ++ ++static int __devinit snd_atmel_ac97_probe(struct platform_device *pdev) ++{ ++ static int dev; ++ struct snd_card *card; ++ struct atmel_ac97 *chip; ++ int err; ++ int ch; ++ ++ mutex_init(&opened_mutex); ++ ++ err = -ENOMEM; ++ card = snd_card_new(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, ++ THIS_MODULE, sizeof(struct atmel_ac97)); ++ if (!card) ++ goto out; ++ chip = get_chip(card); ++ ++ err = snd_atmel_ac97_create(card, pdev); ++ if (err) ++ goto out_free_card; ++ ++ snd_atmel_ac97_reset(chip); ++ ++ err = snd_atmel_ac97_mixer_new(chip); ++ if (err) ++ goto out_free_card; ++ ++ err = snd_atmel_ac97_pcm_new(chip); ++ if (err) ++ goto out_free_card; ++ ++ /* TODO: Get this information from the platform device */ ++ chip->dma.req_tx.req.dmac = find_dma_controller(0); ++ if (!chip->dma.req_tx.req.dmac) { ++ dev_dbg(&chip->pdev->dev, "DMA controller for TX missing\n"); ++ err = -ENODEV; ++ goto out_free_card; ++ } ++ chip->dma.req_rx.req.dmac = find_dma_controller(0); ++ if (!chip->dma.req_rx.req.dmac) { ++ dev_dbg(&chip->pdev->dev, "DMA controller for RX missing\n"); ++ err = -ENODEV; ++ goto out_free_card; ++ } ++ ++ chip->dma.rx_periph_id = 3; ++ chip->dma.tx_periph_id = 4; ++ ++ ch = dma_alloc_channel(chip->dma.req_tx.req.dmac); ++ if (ch < 0) { ++ dev_dbg(&chip->pdev->dev, ++ "could not allocate TX DMA channel\n"); ++ err = ch; ++ goto out_free_card; ++ } ++ chip->dma.req_tx.req.channel = ch; ++ chip->dma.req_tx.width = DMA_WIDTH_16BIT; ++ chip->dma.req_tx.req.block_complete = atmel_ac97_block_complete; ++ chip->dma.req_tx.req.error = atmel_ac97_error; ++ ++ ch = dma_alloc_channel(chip->dma.req_rx.req.dmac); ++ if (ch < 0) { ++ dev_dbg(&chip->pdev->dev, ++ "could not allocate RX DMA channel\n"); ++ err = ch; ++ goto out_free_card; ++ } ++ chip->dma.req_rx.req.channel = ch; ++ chip->dma.req_rx.width = DMA_WIDTH_16BIT; ++ chip->dma.req_rx.req.block_complete = atmel_ac97_block_complete; ++ chip->dma.req_rx.req.error = atmel_ac97_error; ++ ++ strcpy(card->driver, "atmel_ac97c"); ++ strcpy(card->shortname, "atmel_ac97c"); ++ sprintf(card->longname, "Atmel AVR32 AC97 controller"); ++ ++ err = snd_card_register(card); ++ if (err) ++ goto out_free_card; ++ ++ platform_set_drvdata(pdev, card); ++ dev++; ++ ++ dev_info(&pdev->dev, "Atmel AVR32 AC97 controller at 0x%p\n", ++ chip->regs); ++ ++ return 0; ++ ++out_free_card: ++ snd_card_free(card); ++out: ++ return err; ++} ++ ++#ifdef CONFIG_PM ++ static int ++snd_atmel_ac97_suspend(struct platform_device *pdev, pm_message_t msg) ++{ ++ struct snd_card *card = platform_get_drvdata(pdev); ++ struct atmel_ac97 *chip = card->private_data; ++ ++ clk_disable(chip->mck); ++ ++ return 0; ++} ++ ++static int snd_atmel_ac97_resume(struct platform_device *pdev) ++{ ++ struct snd_card *card = dev_get_drvdata(pdev); ++ struct atmel_ac97 *chip = card->private_data; ++ ++ clk_enable(chip->mck); ++ ++ return 0; ++} ++#else ++#define snd_atmel_ac97_suspend NULL ++#define snd_atmel_ac97_resume NULL ++#endif ++ ++static int __devexit snd_atmel_ac97_remove(struct platform_device *pdev) ++{ ++ struct snd_card *card = platform_get_drvdata(pdev); ++ ++ snd_card_free(card); ++ platform_set_drvdata(pdev, NULL); ++ return 0; ++} ++ ++static struct platform_driver atmel_ac97_driver = { ++ .remove = __devexit_p(snd_atmel_ac97_remove), ++ .driver = { ++ .name = "atmel_ac97c", ++ }, ++ .suspend = snd_atmel_ac97_suspend, ++ .resume = snd_atmel_ac97_resume, ++}; ++ ++static int __init atmel_ac97_init(void) ++{ ++ return platform_driver_probe(&atmel_ac97_driver, ++ snd_atmel_ac97_probe); ++} ++module_init(atmel_ac97_init); ++ ++static void __exit atmel_ac97_exit(void) ++{ ++ platform_driver_unregister(&atmel_ac97_driver); ++} ++module_exit(atmel_ac97_exit); ++ ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("Driver for Atmel AC97 Controller"); ++MODULE_AUTHOR("Haavard Skinnemoen <hskinnemoen@atmel.com>"); +diff --git a/sound/avr32/ac97c.h b/sound/avr32/ac97c.h +new file mode 100644 +index 0000000..96246e7 +--- /dev/null ++++ b/sound/avr32/ac97c.h +@@ -0,0 +1,71 @@ ++/* ++ * Register definitions for the Atmel AC97 Controller. ++ * ++ * Copyright (C) 2005-2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#ifndef __SOUND_AVR32_AC97C_H ++#define __SOUND_AVR32_AC97C_H ++ ++#define AC97C_MR 0x08 ++#define AC97C_ICA 0x10 ++#define AC97C_OCA 0x14 ++#define AC97C_CARHR 0x20 ++#define AC97C_CATHR 0x24 ++#define AC97C_CASR 0x28 ++#define AC97C_CAMR 0x2c ++#define AC97C_CBRHR 0x30 ++#define AC97C_CBTHR 0x34 ++#define AC97C_CBSR 0x38 ++#define AC97C_CBMR 0x3c ++#define AC97C_CORHR 0x40 ++#define AC97C_COTHR 0x44 ++#define AC97C_COSR 0x48 ++#define AC97C_COMR 0x4c ++#define AC97C_SR 0x50 ++#define AC97C_IER 0x54 ++#define AC97C_IDR 0x58 ++#define AC97C_IMR 0x5c ++#define AC97C_VERSION 0xfc ++ ++#define AC97C_CATPR PDC_TPR ++#define AC97C_CATCR PDC_TCR ++#define AC97C_CATNPR PDC_TNPR ++#define AC97C_CATNCR PDC_TNCR ++#define AC97C_CARPR PDC_RPR ++#define AC97C_CARCR PDC_RCR ++#define AC97C_CARNPR PDC_RNPR ++#define AC97C_CARNCR PDC_RNCR ++#define AC97C_PTCR PDC_PTCR ++ ++#define AC97C_MR_ENA (1 << 0) ++#define AC97C_MR_WRST (1 << 1) ++#define AC97C_MR_VRA (1 << 2) ++ ++#define AC97C_CSR_TXRDY (1 << 0) ++#define AC97C_CSR_UNRUN (1 << 2) ++#define AC97C_CSR_RXRDY (1 << 4) ++#define AC97C_CSR_ENDTX (1 << 10) ++#define AC97C_CSR_ENDRX (1 << 14) ++ ++#define AC97C_CMR_SIZE_20 (0 << 16) ++#define AC97C_CMR_SIZE_18 (1 << 16) ++#define AC97C_CMR_SIZE_16 (2 << 16) ++#define AC97C_CMR_SIZE_10 (3 << 16) ++#define AC97C_CMR_CEM_LITTLE (1 << 18) ++#define AC97C_CMR_CEM_BIG (0 << 18) ++#define AC97C_CMR_CENA (1 << 21) ++#define AC97C_CMR_PDCEN (1 << 22) ++ ++#define AC97C_SR_CAEVT (1 << 3) ++ ++#define AC97C_CH_ASSIGN(slot, channel) \ ++ (AC97C_CHANNEL_##channel << (3 * (AC97_SLOT_##slot - 3))) ++#define AC97C_CHANNEL_NONE 0x0 ++#define AC97C_CHANNEL_A 0x1 ++#define AC97C_CHANNEL_B 0x2 ++ ++#endif /* __SOUND_AVR32_AC97C_H */ +diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig +index 4b30ae6..de910e0 100644 +--- a/sound/oss/Kconfig ++++ b/sound/oss/Kconfig +@@ -738,3 +738,7 @@ config SOUND_SH_DAC_AUDIO_CHANNEL + int "DAC channel" + default "1" + depends on SOUND_SH_DAC_AUDIO ++ ++config SOUND_AT32_ABDAC ++ tristate "Atmel AT32 Audio Bitstream DAC (ABDAC) support" ++ depends on SOUND_PRIME && AVR32 +diff --git a/sound/oss/Makefile b/sound/oss/Makefile +index 2489bd6..2b731af 100644 +--- a/sound/oss/Makefile ++++ b/sound/oss/Makefile +@@ -10,6 +10,7 @@ obj-$(CONFIG_SOUND_CS4232) += cs4232.o ad1848.o + + # Please leave it as is, cause the link order is significant ! + ++obj-$(CONFIG_SOUND_AT32_ABDAC) += at32_abdac.o + obj-$(CONFIG_SOUND_SH_DAC_AUDIO) += sh_dac_audio.o + obj-$(CONFIG_SOUND_HAL2) += hal2.o + obj-$(CONFIG_SOUND_AEDSP16) += aedsp16.o +diff --git a/sound/oss/at32_abdac.c b/sound/oss/at32_abdac.c +new file mode 100644 +index 0000000..cb997d7 +--- /dev/null ++++ b/sound/oss/at32_abdac.c +@@ -0,0 +1,722 @@ ++/* ++ * OSS Sound Driver for the Atmel AT32 on-chip DAC. ++ * ++ * Copyright (C) 2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#include <linux/clk.h> ++#include <linux/dma-mapping.h> ++#include <linux/fs.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/sound.h> ++#include <linux/soundcard.h> ++ ++#include <asm/byteorder.h> ++#include <asm/dma-controller.h> ++#include <asm/io.h> ++#include <asm/uaccess.h> ++ ++/* We want to use the "bizarre" swap-bytes-in-each-halfword macro */ ++#include <linux/byteorder/swabb.h> ++ ++#include "at32_abdac.h" ++ ++#define DMA_BUFFER_SIZE 32768 ++#define DMA_PERIOD_SHIFT 10 ++#define DMA_PERIOD_SIZE (1 << DMA_PERIOD_SHIFT) ++#define DMA_WRITE_THRESHOLD DMA_PERIOD_SIZE ++ ++struct sound_settings { ++ unsigned int format; ++ unsigned int channels; ++ unsigned int sample_rate; ++ /* log2(bytes per sample) */ ++ unsigned int input_order; ++}; ++ ++struct at32_dac { ++ spinlock_t lock; ++ void __iomem *regs; ++ ++ /* head and tail refer to number of words */ ++ struct { ++ u32 *buf; ++ int head; ++ int tail; ++ } dma; ++ ++ struct semaphore sem; ++ wait_queue_head_t write_wait; ++ ++ /* ++ * Read at most ucount bytes from ubuf, translate to 2-channel ++ * signed 16-bit big endian format and write to the DMA buffer ++ * as long as there is room left. Return the number of bytes ++ * successfully copied from ubuf, or -EFAULT if the first ++ * sample from ubuf couldn't be read. This function is not ++ * called unless there is room for at least one sample (4 ++ * bytes) in the DMA buffer. ++ */ ++ ssize_t (*trans)(struct at32_dac *dac, const char __user *ubuf, ++ size_t ucount); ++ ++ struct sound_settings dsp_settings; ++ struct dma_request_cyclic req; ++ ++ struct clk *mck; ++ struct clk *sample_clk; ++ struct platform_device *pdev; ++ int busy; ++ int playing; ++ int dev_dsp; ++}; ++static struct at32_dac *the_dac; ++ ++static inline unsigned int abdac_get_head(struct at32_dac *dac) ++{ ++ return dac->dma.head & ((DMA_BUFFER_SIZE / 4) - 1); ++} ++ ++static inline unsigned int abdac_get_tail(struct at32_dac *dac) ++{ ++ return dac->dma.tail & ((DMA_BUFFER_SIZE / 4) - 1); ++} ++ ++static inline unsigned int abdac_dma_space(struct at32_dac *dac) ++{ ++ unsigned int space; ++ ++ space = ((dac->dma.tail - dac->dma.head - 1) ++ & ((DMA_BUFFER_SIZE / 4) - 1)); ++ return space; ++} ++ ++static void abdac_update_dma_tail(struct at32_dac *dac) ++{ ++ dma_addr_t dma_addr; ++ unsigned int new_tail; ++ ++ if (dac->playing) { ++ dma_addr = dma_get_current_pos(dac->req.req.dmac, ++ dac->req.req.channel); ++ new_tail = (dma_addr - dac->req.buffer_start) / 4; ++ if (new_tail >= dac->dma.head ++ && (dac->dma.tail < dac->dma.head ++ || dac->dma.tail > new_tail)) ++ dev_notice(&dac->pdev->dev, "DMA underrun detected!\n"); ++ dac->dma.tail = new_tail; ++ dev_dbg(&dac->pdev->dev, "update tail: 0x%x - 0x%x = %u\n", ++ dma_addr, dac->req.buffer_start, dac->dma.tail); ++ } ++} ++ ++static int abdac_start(struct at32_dac *dac) ++{ ++ int ret; ++ ++ if (dac->playing) ++ return 0; ++ ++ memset(dac->dma.buf, 0, DMA_BUFFER_SIZE); ++ ++ clk_enable(dac->sample_clk); ++ ++ ret = dma_prepare_request_cyclic(dac->req.req.dmac, &dac->req); ++ if (ret) ++ goto out_stop_clock; ++ ++ dev_dbg(&dac->pdev->dev, "starting DMA...\n"); ++ ret = dma_start_request(dac->req.req.dmac, dac->req.req.channel); ++ if (ret) ++ goto out_stop_request; ++ ++ dac_writel(dac, CTRL, DAC_BIT(EN)); ++ dac->playing = 1; ++ ++ return 0; ++ ++out_stop_request: ++ dma_stop_request(dac->req.req.dmac, ++ dac->req.req.channel); ++out_stop_clock: ++ clk_disable(dac->sample_clk); ++ return ret; ++} ++ ++static int abdac_stop(struct at32_dac *dac) ++{ ++ if (dac->playing) { ++ dma_stop_request(dac->req.req.dmac, dac->req.req.channel); ++ dac_writel(dac, DATA, 0); ++ dac_writel(dac, CTRL, 0); ++ dac->playing = 0; ++ clk_disable(dac->sample_clk); ++ } ++ ++ return 0; ++} ++ ++static int abdac_dma_prepare(struct at32_dac *dac) ++{ ++ dac->dma.buf = dma_alloc_coherent(&dac->pdev->dev, DMA_BUFFER_SIZE, ++ &dac->req.buffer_start, GFP_KERNEL); ++ if (!dac->dma.buf) ++ return -ENOMEM; ++ ++ dac->dma.head = dac->dma.tail = 0; ++ dac->req.periods = DMA_BUFFER_SIZE / DMA_PERIOD_SIZE; ++ dac->req.buffer_size = DMA_BUFFER_SIZE; ++ ++ return 0; ++} ++ ++static void abdac_dma_cleanup(struct at32_dac *dac) ++{ ++ if (dac->dma.buf) ++ dma_free_coherent(&dac->pdev->dev, DMA_BUFFER_SIZE, ++ dac->dma.buf, dac->req.buffer_start); ++ dac->dma.buf = NULL; ++} ++ ++static void abdac_dma_block_complete(struct dma_request *req) ++{ ++ struct dma_request_cyclic *creq = to_dma_request_cyclic(req); ++ struct at32_dac *dac = container_of(creq, struct at32_dac, req); ++ ++ wake_up(&dac->write_wait); ++} ++ ++static void abdac_dma_error(struct dma_request *req) ++{ ++ struct dma_request_cyclic *creq = to_dma_request_cyclic(req); ++ struct at32_dac *dac = container_of(creq, struct at32_dac, req); ++ ++ dev_err(&dac->pdev->dev, "DMA error\n"); ++} ++ ++static irqreturn_t abdac_interrupt(int irq, void *dev_id) ++{ ++ struct at32_dac *dac = dev_id; ++ u32 status; ++ ++ status = dac_readl(dac, INT_STATUS); ++ if (status & DAC_BIT(UNDERRUN)) { ++ dev_err(&dac->pdev->dev, "Underrun detected!\n"); ++ dac_writel(dac, INT_CLR, DAC_BIT(UNDERRUN)); ++ } else { ++ dev_err(&dac->pdev->dev, "Spurious interrupt (status=0x%x)\n", ++ status); ++ dac_writel(dac, INT_CLR, status); ++ } ++ ++ return IRQ_HANDLED; ++} ++ ++static ssize_t trans_s16be(struct at32_dac *dac, const char __user *ubuf, ++ size_t ucount) ++{ ++ ssize_t ret; ++ ++ if (dac->dsp_settings.channels == 2) { ++ const u32 __user *up = (const u32 __user *)ubuf; ++ u32 sample; ++ ++ for (ret = 0; ret < (ssize_t)(ucount - 3); ret += 4) { ++ if (!abdac_dma_space(dac)) ++ break; ++ ++ if (unlikely(__get_user(sample, up++))) { ++ if (ret == 0) ++ ret = -EFAULT; ++ break; ++ } ++ dac->dma.buf[abdac_get_head(dac)] = sample; ++ dac->dma.head++; ++ } ++ } else { ++ const u16 __user *up = (const u16 __user *)ubuf; ++ u16 sample; ++ ++ for (ret = 0; ret < (ssize_t)(ucount - 1); ret += 2) { ++ if (!abdac_dma_space(dac)) ++ break; ++ ++ if (unlikely(__get_user(sample, up++))) { ++ if (ret == 0) ++ ret = -EFAULT; ++ break; ++ } ++ dac->dma.buf[abdac_get_head(dac)] ++ = (sample << 16) | sample; ++ dac->dma.head++; ++ } ++ } ++ ++ return ret; ++} ++ ++static ssize_t trans_s16le(struct at32_dac *dac, const char __user *ubuf, ++ size_t ucount) ++{ ++ ssize_t ret; ++ ++ if (dac->dsp_settings.channels == 2) { ++ const u32 __user *up = (const u32 __user *)ubuf; ++ u32 sample; ++ ++ for (ret = 0; ret < (ssize_t)(ucount - 3); ret += 4) { ++ if (!abdac_dma_space(dac)) ++ break; ++ ++ if (unlikely(__get_user(sample, up++))) { ++ if (ret == 0) ++ ret = -EFAULT; ++ break; ++ } ++ /* Swap bytes in each halfword */ ++ dac->dma.buf[abdac_get_head(dac)] = swahb32(sample); ++ dac->dma.head++; ++ } ++ } else { ++ const u16 __user *up = (const u16 __user *)ubuf; ++ u16 sample; ++ ++ for (ret = 0; ret < (ssize_t)(ucount - 1); ret += 2) { ++ if (!abdac_dma_space(dac)) ++ break; ++ ++ if (unlikely(__get_user(sample, up++))) { ++ if (ret == 0) ++ ret = -EFAULT; ++ break; ++ } ++ sample = swab16(sample); ++ dac->dma.buf[abdac_get_head(dac)] ++ = (sample << 16) | sample; ++ dac->dma.head++; ++ } ++ } ++ ++ return ret; ++} ++ ++static ssize_t abdac_dma_translate_from_user(struct at32_dac *dac, ++ const char __user *buffer, ++ size_t count) ++{ ++ /* At least one buffer must be available at this point */ ++ dev_dbg(&dac->pdev->dev, "copying %zu bytes from user...\n", count); ++ ++ return dac->trans(dac, buffer, count); ++} ++ ++static int abdac_set_format(struct at32_dac *dac, int format) ++{ ++ unsigned int order; ++ ++ switch (format) { ++ case AFMT_S16_BE: ++ order = 1; ++ dac->trans = trans_s16be; ++ break; ++ case AFMT_S16_LE: ++ order = 1; ++ dac->trans = trans_s16le; ++ break; ++ default: ++ dev_dbg(&dac->pdev->dev, "unsupported format: %d\n", format); ++ return -EINVAL; ++ } ++ ++ if (dac->dsp_settings.channels == 2) ++ order++; ++ ++ dac->dsp_settings.input_order = order; ++ dac->dsp_settings.format = format; ++ return 0; ++} ++ ++static int abdac_set_sample_rate(struct at32_dac *dac, unsigned long rate) ++{ ++ unsigned long new_rate; ++ int ret; ++ ++ ret = clk_set_rate(dac->sample_clk, 256 * rate); ++ if (ret < 0) ++ return ret; ++ ++ /* TODO: mplayer seems to have a problem with this */ ++#if 0 ++ new_rate = clk_get_rate(dac->sample_clk); ++ dac->dsp_settings.sample_rate = new_rate / 256; ++#else ++ dac->dsp_settings.sample_rate = rate; ++#endif ++ ++ return 0; ++} ++ ++static ssize_t abdac_dsp_write(struct file *file, ++ const char __user *buffer, ++ size_t count, loff_t *ppos) ++{ ++ struct at32_dac *dac = file->private_data; ++ DECLARE_WAITQUEUE(wait, current); ++ unsigned int avail; ++ ssize_t copied; ++ ssize_t ret; ++ ++ /* Avoid address space checking in the translation functions */ ++ if (!access_ok(buffer, count, VERIFY_READ)) ++ return -EFAULT; ++ ++ down(&dac->sem); ++ ++ if (!dac->dma.buf) { ++ ret = abdac_dma_prepare(dac); ++ if (ret) ++ goto out; ++ } ++ ++ add_wait_queue(&dac->write_wait, &wait); ++ ret = 0; ++ while (count > 0) { ++ do { ++ abdac_update_dma_tail(dac); ++ avail = abdac_dma_space(dac); ++ set_current_state(TASK_INTERRUPTIBLE); ++ if (avail >= DMA_WRITE_THRESHOLD) ++ break; ++ ++ if (file->f_flags & O_NONBLOCK) { ++ if (!ret) ++ ret = -EAGAIN; ++ goto out; ++ } ++ ++ pr_debug("Going to wait (avail = %u, count = %zu)\n", ++ avail, count); ++ ++ up(&dac->sem); ++ schedule(); ++ if (signal_pending(current)) { ++ if (!ret) ++ ret = -ERESTARTSYS; ++ goto out_nosem; ++ } ++ down(&dac->sem); ++ } while (1); ++ ++ copied = abdac_dma_translate_from_user(dac, buffer, count); ++ if (copied < 0) { ++ if (!ret) ++ ret = -EFAULT; ++ goto out; ++ } ++ ++ abdac_start(dac); ++ ++ count -= copied; ++ ret += copied; ++ } ++ ++out: ++ up(&dac->sem); ++out_nosem: ++ remove_wait_queue(&dac->write_wait, &wait); ++ set_current_state(TASK_RUNNING); ++ return ret; ++} ++ ++static int abdac_dsp_ioctl(struct inode *inode, struct file *file, ++ unsigned int cmd, unsigned long arg) ++{ ++ struct at32_dac *dac = file->private_data; ++ int __user *up = (int __user *)arg; ++ struct audio_buf_info abinfo; ++ int val, ret; ++ ++ switch (cmd) { ++ case OSS_GETVERSION: ++ return put_user(SOUND_VERSION, up); ++ ++ case SNDCTL_DSP_SPEED: ++ if (get_user(val, up)) ++ return -EFAULT; ++ if (val >= 0) { ++ abdac_stop(dac); ++ ret = abdac_set_sample_rate(dac, val); ++ if (ret) ++ return ret; ++ } ++ return put_user(dac->dsp_settings.sample_rate, up); ++ ++ case SNDCTL_DSP_STEREO: ++ if (get_user(val, up)) ++ return -EFAULT; ++ abdac_stop(dac); ++ if (val && dac->dsp_settings.channels == 1) ++ dac->dsp_settings.input_order++; ++ else if (!val && dac->dsp_settings.channels != 1) ++ dac->dsp_settings.input_order--; ++ dac->dsp_settings.channels = val ? 2 : 1; ++ return 0; ++ ++ case SNDCTL_DSP_CHANNELS: ++ if (get_user(val, up)) ++ return -EFAULT; ++ ++ if (val) { ++ if (val < 0 || val > 2) ++ return -EINVAL; ++ ++ abdac_stop(dac); ++ dac->dsp_settings.input_order ++ += val - dac->dsp_settings.channels; ++ dac->dsp_settings.channels = val; ++ } ++ return put_user(val, (int *)arg); ++ ++ case SNDCTL_DSP_GETFMTS: ++ return put_user(AFMT_S16_BE | AFMT_S16_BE, up); ++ ++ case SNDCTL_DSP_SETFMT: ++ if (get_user(val, up)) ++ return -EFAULT; ++ ++ if (val == AFMT_QUERY) { ++ val = dac->dsp_settings.format; ++ } else { ++ ret = abdac_set_format(dac, val); ++ if (ret) ++ return ret; ++ } ++ return put_user(val, up); ++ ++ case SNDCTL_DSP_GETOSPACE: ++ abdac_update_dma_tail(dac); ++ abinfo.fragsize = ((1 << dac->dsp_settings.input_order) ++ * (DMA_PERIOD_SIZE / 4)); ++ abinfo.bytes = (abdac_dma_space(dac) ++ << dac->dsp_settings.input_order); ++ abinfo.fragstotal = ((DMA_BUFFER_SIZE * 4) ++ >> (DMA_PERIOD_SHIFT ++ + dac->dsp_settings.input_order)); ++ abinfo.fragments = ((abinfo.bytes ++ >> dac->dsp_settings.input_order) ++ / (DMA_PERIOD_SIZE / 4)); ++ pr_debug("fragments=%d fragstotal=%d fragsize=%d bytes=%d\n", ++ abinfo.fragments, abinfo.fragstotal, abinfo.fragsize, ++ abinfo.bytes); ++ return copy_to_user(up, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; ++ ++ default: ++ dev_dbg(&dac->pdev->dev, "Unimplemented ioctl cmd: 0x%x\n", cmd); ++ return -EINVAL; ++ } ++} ++ ++static int abdac_dsp_open(struct inode *inode, struct file *file) ++{ ++ struct at32_dac *dac = the_dac; ++ int ret; ++ ++ if (file->f_mode & FMODE_READ) ++ return -ENXIO; ++ ++ down(&dac->sem); ++ ret = -EBUSY; ++ if (dac->busy) ++ goto out; ++ ++ dac->dma.head = dac->dma.tail = 0; ++ ++ /* FIXME: What are the correct defaults? */ ++ dac->dsp_settings.channels = 2; ++ abdac_set_format(dac, AFMT_S16_BE); ++ ret = abdac_set_sample_rate(dac, 8000); ++ if (ret) ++ goto out; ++ ++ file->private_data = dac; ++ dac->busy = 1; ++ ++ ret = 0; ++ ++out: ++ up(&dac->sem); ++ return ret; ++} ++ ++static int abdac_dsp_release(struct inode *inode, struct file *file) ++{ ++ struct at32_dac *dac = file->private_data; ++ ++ down(&dac->sem); ++ ++ abdac_stop(dac); ++ abdac_dma_cleanup(dac); ++ dac->busy = 0; ++ ++ up(&dac->sem); ++ ++ return 0; ++} ++ ++static struct file_operations abdac_dsp_fops = { ++ .owner = THIS_MODULE, ++ .llseek = no_llseek, ++ .write = abdac_dsp_write, ++ .ioctl = abdac_dsp_ioctl, ++ .open = abdac_dsp_open, ++ .release = abdac_dsp_release, ++}; ++ ++static int __init abdac_probe(struct platform_device *pdev) ++{ ++ struct at32_dac *dac; ++ struct resource *regs; ++ struct clk *mck; ++ struct clk *sample_clk; ++ int irq; ++ int ret; ++ ++ if (the_dac) ++ return -EBUSY; ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) ++ return -ENXIO; ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) ++ return irq; ++ ++ mck = clk_get(&pdev->dev, "pclk"); ++ if (IS_ERR(mck)) ++ return PTR_ERR(mck); ++ sample_clk = clk_get(&pdev->dev, "sample_clk"); ++ if (IS_ERR(sample_clk)) { ++ ret = PTR_ERR(sample_clk); ++ goto out_put_mck; ++ } ++ clk_enable(mck); ++ ++ ret = -ENOMEM; ++ dac = kzalloc(sizeof(struct at32_dac), GFP_KERNEL); ++ if (!dac) ++ goto out_disable_clk; ++ ++ spin_lock_init(&dac->lock); ++ init_MUTEX(&dac->sem); ++ init_waitqueue_head(&dac->write_wait); ++ dac->pdev = pdev; ++ dac->mck = mck; ++ dac->sample_clk = sample_clk; ++ ++ dac->regs = ioremap(regs->start, regs->end - regs->start + 1); ++ if (!dac->regs) ++ goto out_free_dac; ++ ++ ret = request_irq(irq, abdac_interrupt, 0, "dac", dac); ++ if (ret) ++ goto out_unmap_regs; ++ ++ /* FIXME */ ++ dac->req.req.dmac = find_dma_controller(0); ++ if (!dac->req.req.dmac) ++ goto out_free_irq; ++ ++ ret = dma_alloc_channel(dac->req.req.dmac); ++ if (ret < 0) ++ goto out_free_irq; ++ ++ dac->req.req.channel = ret; ++ dac->req.req.block_complete = abdac_dma_block_complete; ++ dac->req.req.error = abdac_dma_error; ++ dac->req.data_reg = regs->start + DAC_DATA; ++ dac->req.periph_id = 2; /* FIXME */ ++ dac->req.direction = DMA_DIR_MEM_TO_PERIPH; ++ dac->req.width = DMA_WIDTH_32BIT; ++ ++ /* Make sure the DAC is silent and disabled */ ++ dac_writel(dac, DATA, 0); ++ dac_writel(dac, CTRL, 0); ++ ++ ret = register_sound_dsp(&abdac_dsp_fops, -1); ++ if (ret < 0) ++ goto out_free_dma; ++ dac->dev_dsp = ret; ++ ++ /* TODO: Register mixer */ ++ ++ the_dac = dac; ++ platform_set_drvdata(pdev, dac); ++ ++ return 0; ++ ++out_free_dma: ++ dma_release_channel(dac->req.req.dmac, dac->req.req.channel); ++out_free_irq: ++ free_irq(irq, dac); ++out_unmap_regs: ++ iounmap(dac->regs); ++out_free_dac: ++ kfree(dac); ++out_disable_clk: ++ clk_disable(mck); ++ clk_put(sample_clk); ++out_put_mck: ++ clk_put(mck); ++ return ret; ++} ++ ++static int __exit abdac_remove(struct platform_device *pdev) ++{ ++ struct at32_dac *dac; ++ ++ dac = platform_get_drvdata(pdev); ++ if (dac) { ++ unregister_sound_dsp(dac->dev_dsp); ++ dma_release_channel(dac->req.req.dmac, dac->req.req.channel); ++ free_irq(platform_get_irq(pdev, 0), dac); ++ iounmap(dac->regs); ++ clk_disable(dac->mck); ++ clk_put(dac->sample_clk); ++ clk_put(dac->mck); ++ kfree(dac); ++ platform_set_drvdata(pdev, NULL); ++ the_dac = NULL; ++ } ++ ++ return 0; ++} ++ ++static struct platform_driver abdac_driver = { ++ .remove = __exit_p(abdac_remove), ++ .driver = { ++ .name = "abdac", ++ }, ++}; ++ ++static int __init abdac_init(void) ++{ ++ return platform_driver_probe(&abdac_driver, abdac_probe); ++} ++module_init(abdac_init); ++ ++static void __exit abdac_exit(void) ++{ ++ platform_driver_unregister(&abdac_driver); ++} ++module_exit(abdac_exit); ++ ++MODULE_AUTHOR("Haavard Skinnemoen <hskinnemoen@atmel.com>"); ++MODULE_DESCRIPTION("Sound Driver for the Atmel AT32 ABDAC"); ++MODULE_LICENSE("GPL"); +diff --git a/sound/oss/at32_abdac.h b/sound/oss/at32_abdac.h +new file mode 100644 +index 0000000..3c88e25 +--- /dev/null ++++ b/sound/oss/at32_abdac.h +@@ -0,0 +1,59 @@ ++/* ++ * Register definitions for the Atmel AT32 on-chip DAC. ++ * ++ * Copyright (C) 2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#ifndef __SOUND_OSS_AT32_ABDAC_H__ ++#define __SOUND_OSS_AT32_ABDAC_H__ ++ ++/* DAC register offsets */ ++#define DAC_DATA 0x0000 ++#define DAC_CTRL 0x0008 ++#define DAC_INT_MASK 0x000c ++#define DAC_INT_EN 0x0010 ++#define DAC_INT_DIS 0x0014 ++#define DAC_INT_CLR 0x0018 ++#define DAC_INT_STATUS 0x001c ++#define DAC_PDC_DATA 0x0020 ++ ++/* Bitfields in CTRL */ ++#define DAC_SWAP_OFFSET 30 ++#define DAC_SWAP_SIZE 1 ++#define DAC_EN_OFFSET 31 ++#define DAC_EN_SIZE 1 ++ ++/* Bitfields in INT_MASK/INT_EN/INT_DIS/INT_STATUS/INT_CLR */ ++#define DAC_UNDERRUN_OFFSET 28 ++#define DAC_UNDERRUN_SIZE 1 ++#define DAC_TX_READY_OFFSET 29 ++#define DAC_TX_READY_SIZE 1 ++#define DAC_TX_BUFFER_EMPTY_OFFSET 30 ++#define DAC_TX_BUFFER_EMPTY_SIZE 1 ++#define DAC_CHANNEL_TX_END_OFFSET 31 ++#define DAC_CHANNEL_TX_END_SIZE 1 ++ ++/* Bit manipulation macros */ ++#define DAC_BIT(name) \ ++ (1 << DAC_##name##_OFFSET) ++#define DAC_BF(name, value) \ ++ (((value) & ((1 << DAC_##name##_SIZE) - 1)) \ ++ << DAC_##name##_OFFSET) ++#define DAC_BFEXT(name, value) \ ++ (((value) >> DAC_##name##_OFFSET) \ ++ & ((1 << DAC_##name##_SIZE) - 1)) ++#define DAC_BFINS(name, value, old) \ ++ (((old) & ~(((1 << DAC_##name##_SIZE) - 1) \ ++ << DAC_##name##_OFFSET)) \ ++ | DAC_BF(name,value)) ++ ++/* Register access macros */ ++#define dac_readl(port, reg) \ ++ __raw_readl((port)->regs + DAC_##reg) ++#define dac_writel(port, reg, value) \ ++ __raw_writel((value), (port)->regs + DAC_##reg) ++ ++#endif /* __SOUND_OSS_AT32_ABDAC_H__ */ +diff --git a/sound/spi/Kconfig b/sound/spi/Kconfig +new file mode 100644 +index 0000000..0d08c29 +--- /dev/null ++++ b/sound/spi/Kconfig +@@ -0,0 +1,31 @@ ++#SPI drivers ++ ++menu "SPI devices" ++ depends on SND != n ++ ++config SND_AT73C213 ++ tristate "Atmel AT73C213 DAC driver" ++ depends on ATMEL_SSC ++ select SND_PCM ++ help ++ Say Y here if you want to use the Atmel AT73C213 external DAC. This ++ DAC can be found on Atmel development boards. ++ ++ This driver requires the Atmel SSC driver for sound sink, a ++ peripheral found on most AT91 and AVR32 microprocessors. ++ ++ To compile this driver as a module, choose M here: the module will be ++ called snd-at73c213. ++ ++config SND_AT73C213_TARGET_BITRATE ++ int "Target bitrate for AT73C213" ++ depends on SND_AT73C213 ++ default "48000" ++ range 8000 50000 ++ help ++ Sets the target bitrate for the bitrate calculator in the driver. ++ Limited by hardware to be between 8000 Hz and 50000 Hz. ++ ++ Set to 48000 Hz by default. ++ ++endmenu +diff --git a/sound/spi/Makefile b/sound/spi/Makefile +new file mode 100644 +index 0000000..026fb73 +--- /dev/null ++++ b/sound/spi/Makefile +@@ -0,0 +1,5 @@ ++# Makefile for SPI drivers ++ ++snd-at73c213-objs := at73c213.o ++ ++obj-$(CONFIG_SND_AT73C213) += snd-at73c213.o +diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c +new file mode 100644 +index 0000000..f514f47 +--- /dev/null ++++ b/sound/spi/at73c213.c +@@ -0,0 +1,1121 @@ ++/* ++ * Driver for AT73C213 16-bit stereo DAC connected to Atmel SSC ++ * ++ * Copyright (C) 2006-2007 Atmel Norway ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ */ ++ ++/*#define DEBUG*/ ++ ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/delay.h> ++#include <linux/device.h> ++#include <linux/dma-mapping.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/io.h> ++ ++#include <sound/driver.h> ++#include <sound/initval.h> ++#include <sound/control.h> ++#include <sound/core.h> ++#include <sound/pcm.h> ++ ++#include <linux/atmel-ssc.h> ++ ++#include <linux/spi/spi.h> ++#include <linux/spi/at73c213.h> ++ ++#include "at73c213.h" ++ ++#define BITRATE_MIN 8000 /* Hardware limit? */ ++#define BITRATE_TARGET CONFIG_SND_AT73C213_TARGET_BITRATE ++#define BITRATE_MAX 50000 /* Hardware limit. */ ++ ++/* Initial (hardware reset) AT73C213 register values. */ ++static u8 snd_at73c213_original_image[18] = ++{ ++ 0x00, /* 00 - CTRL */ ++ 0x05, /* 01 - LLIG */ ++ 0x05, /* 02 - RLIG */ ++ 0x08, /* 03 - LPMG */ ++ 0x08, /* 04 - RPMG */ ++ 0x00, /* 05 - LLOG */ ++ 0x00, /* 06 - RLOG */ ++ 0x22, /* 07 - OLC */ ++ 0x09, /* 08 - MC */ ++ 0x00, /* 09 - CSFC */ ++ 0x00, /* 0A - MISC */ ++ 0x00, /* 0B - */ ++ 0x00, /* 0C - PRECH */ ++ 0x05, /* 0D - AUXG */ ++ 0x00, /* 0E - */ ++ 0x00, /* 0F - */ ++ 0x00, /* 10 - RST */ ++ 0x00, /* 11 - PA_CTRL */ ++}; ++ ++struct snd_at73c213 { ++ struct snd_card *card; ++ struct snd_pcm *pcm; ++ struct snd_pcm_substream *substream; ++ struct at73c213_board_info *board; ++ int irq; ++ int period; ++ unsigned long bitrate; ++ struct clk *bitclk; ++ struct ssc_device *ssc; ++ struct spi_device *spi; ++ u8 spi_wbuffer[2]; ++ u8 spi_rbuffer[2]; ++ /* Image of the SPI registers in AT73C213. */ ++ u8 reg_image[18]; ++ /* Protect registers against concurrent access. */ ++ spinlock_t lock; ++}; ++ ++#define get_chip(card) ((struct snd_at73c213 *)card->private_data) ++ ++static int ++snd_at73c213_write_reg(struct snd_at73c213 *chip, u8 reg, u8 val) ++{ ++ struct spi_message msg; ++ struct spi_transfer msg_xfer = { ++ .len = 2, ++ .cs_change = 0, ++ }; ++ int retval; ++ ++ spi_message_init(&msg); ++ ++ chip->spi_wbuffer[0] = reg; ++ chip->spi_wbuffer[1] = val; ++ ++ msg_xfer.tx_buf = chip->spi_wbuffer; ++ msg_xfer.rx_buf = chip->spi_rbuffer; ++ spi_message_add_tail(&msg_xfer, &msg); ++ ++ retval = spi_sync(chip->spi, &msg); ++ ++ if (!retval) ++ chip->reg_image[reg] = val; ++ ++ return retval; ++} ++ ++static struct snd_pcm_hardware snd_at73c213_playback_hw = { ++ .info = SNDRV_PCM_INFO_INTERLEAVED | ++ SNDRV_PCM_INFO_BLOCK_TRANSFER, ++ .formats = SNDRV_PCM_FMTBIT_S16_BE, ++ .rates = SNDRV_PCM_RATE_CONTINUOUS, ++ .rate_min = 8000, /* Replaced by chip->bitrate later. */ ++ .rate_max = 50000, /* Replaced by chip->bitrate later. */ ++ .channels_min = 2, ++ .channels_max = 2, ++ .buffer_bytes_max = 64 * 1024 - 1, ++ .period_bytes_min = 512, ++ .period_bytes_max = 64 * 1024 - 1, ++ .periods_min = 4, ++ .periods_max = 1024, ++}; ++ ++/* ++ * Calculate and set bitrate and divisions. ++ */ ++static int snd_at73c213_set_bitrate(struct snd_at73c213 *chip) ++{ ++ unsigned long ssc_rate = clk_get_rate(chip->ssc->clk); ++ unsigned long dac_rate_new, ssc_div, status; ++ unsigned long ssc_div_max, ssc_div_min; ++ int max_tries; ++ ++ /* ++ * We connect two clocks here, picking divisors so the I2S clocks ++ * out data at the same rate the DAC clocks it in ... and as close ++ * as practical to the desired target rate. ++ * ++ * The DAC master clock (MCLK) is programmable, and is either 256 ++ * or (not here) 384 times the I2S output clock (BCLK). ++ */ ++ ++ /* SSC clock / (bitrate * stereo * 16-bit). */ ++ ssc_div = ssc_rate / (BITRATE_TARGET * 2 * 16); ++ ssc_div_min = ssc_rate / (BITRATE_MAX * 2 * 16); ++ ssc_div_max = ssc_rate / (BITRATE_MIN * 2 * 16); ++ max_tries = (ssc_div_max - ssc_div_min) / 2; ++ ++ if (max_tries < 1) ++ max_tries = 1; ++ ++ /* ssc_div must be a power of 2. */ ++ ssc_div = (ssc_div + 1) & ~1UL; ++ ++ if ((ssc_rate / (ssc_div * 2 * 16)) < BITRATE_MIN) { ++ ssc_div -= 2; ++ if ((ssc_rate / (ssc_div * 2 * 16)) > BITRATE_MAX) ++ return -ENXIO; ++ } ++ ++ /* Search for a possible bitrate. */ ++ do { ++ /* SSC clock / (ssc divider * 16-bit * stereo). */ ++ if ((ssc_rate / (ssc_div * 2 * 16)) < BITRATE_MIN) ++ return -ENXIO; ++ ++ /* 256 / (2 * 16) = 8 */ ++ dac_rate_new = 8 * (ssc_rate / ssc_div); ++ ++ status = clk_round_rate(chip->board->dac_clk, dac_rate_new); ++ if (status < 0) ++ return status; ++ ++ /* Ignore difference smaller than 256 Hz. */ ++ if ((status/256) == (dac_rate_new/256)) ++ goto set_rate; ++ ++ ssc_div += 2; ++ } while (--max_tries); ++ ++ /* Not able to find a valid bitrate. */ ++ return -ENXIO; ++ ++set_rate: ++ status = clk_set_rate(chip->board->dac_clk, status); ++ if (status < 0) ++ return status; ++ ++ /* Set divider in SSC device. */ ++ ssc_writel(chip->ssc->regs, CMR, ssc_div/2); ++ ++ /* SSC clock / (ssc divider * 16-bit * stereo). */ ++ chip->bitrate = ssc_rate / (ssc_div * 16 * 2); ++ ++ dev_info(&chip->spi->dev, ++ "at73c213: supported bitrate is %lu (%lu divider)\n", ++ chip->bitrate, ssc_div); ++ ++ return 0; ++} ++ ++static int snd_at73c213_pcm_open(struct snd_pcm_substream *substream) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ ++ snd_at73c213_playback_hw.rate_min = chip->bitrate; ++ snd_at73c213_playback_hw.rate_max = chip->bitrate; ++ runtime->hw = snd_at73c213_playback_hw; ++ chip->substream = substream; ++ ++ return 0; ++} ++ ++static int snd_at73c213_pcm_close(struct snd_pcm_substream *substream) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ chip->substream = NULL; ++ return 0; ++} ++ ++static int snd_at73c213_pcm_hw_params(struct snd_pcm_substream *substream, ++ struct snd_pcm_hw_params *hw_params) ++{ ++ return snd_pcm_lib_malloc_pages(substream, ++ params_buffer_bytes(hw_params)); ++} ++ ++static int snd_at73c213_pcm_hw_free(struct snd_pcm_substream *substream) ++{ ++ return snd_pcm_lib_free_pages(substream); ++} ++ ++static int snd_at73c213_pcm_prepare(struct snd_pcm_substream *substream) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ int block_size; ++ ++ block_size = frames_to_bytes(runtime, runtime->period_size); ++ ++ chip->period = 0; ++ ++ ssc_writel(chip->ssc->regs, PDC_TPR, ++ (long)runtime->dma_addr); ++ ssc_writel(chip->ssc->regs, PDC_TCR, runtime->period_size * 2); ++ ssc_writel(chip->ssc->regs, PDC_TNPR, ++ (long)runtime->dma_addr + block_size); ++ ssc_writel(chip->ssc->regs, PDC_TNCR, runtime->period_size * 2); ++ ++ return 0; ++} ++ ++static int snd_at73c213_pcm_trigger(struct snd_pcm_substream *substream, ++ int cmd) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ int retval = 0; ++ ++ spin_lock(&chip->lock); ++ ++ switch (cmd) { ++ case SNDRV_PCM_TRIGGER_START: ++ ssc_writel(chip->ssc->regs, IER, SSC_BIT(IER_ENDTX)); ++ ssc_writel(chip->ssc->regs, PDC_PTCR, SSC_BIT(PDC_PTCR_TXTEN)); ++ break; ++ case SNDRV_PCM_TRIGGER_STOP: ++ ssc_writel(chip->ssc->regs, PDC_PTCR, SSC_BIT(PDC_PTCR_TXTDIS)); ++ ssc_writel(chip->ssc->regs, IDR, SSC_BIT(IDR_ENDTX)); ++ break; ++ default: ++ dev_dbg(&chip->spi->dev, "spurious command %x\n", cmd); ++ retval = -EINVAL; ++ break; ++ } ++ ++ spin_unlock(&chip->lock); ++ ++ return retval; ++} ++ ++static snd_pcm_uframes_t ++snd_at73c213_pcm_pointer(struct snd_pcm_substream *substream) ++{ ++ struct snd_at73c213 *chip = snd_pcm_substream_chip(substream); ++ struct snd_pcm_runtime *runtime = substream->runtime; ++ snd_pcm_uframes_t pos; ++ unsigned long bytes; ++ ++ bytes = ssc_readl(chip->ssc->regs, PDC_TPR) ++ - (unsigned long)runtime->dma_addr; ++ ++ pos = bytes_to_frames(runtime, bytes); ++ if (pos >= runtime->buffer_size) ++ pos -= runtime->buffer_size; ++ ++ return pos; ++} ++ ++static struct snd_pcm_ops at73c213_playback_ops = { ++ .open = snd_at73c213_pcm_open, ++ .close = snd_at73c213_pcm_close, ++ .ioctl = snd_pcm_lib_ioctl, ++ .hw_params = snd_at73c213_pcm_hw_params, ++ .hw_free = snd_at73c213_pcm_hw_free, ++ .prepare = snd_at73c213_pcm_prepare, ++ .trigger = snd_at73c213_pcm_trigger, ++ .pointer = snd_at73c213_pcm_pointer, ++}; ++ ++static void snd_at73c213_pcm_free(struct snd_pcm *pcm) ++{ ++ struct snd_at73c213 *chip = snd_pcm_chip(pcm); ++ if (chip->pcm) { ++ snd_pcm_lib_preallocate_free_for_all(chip->pcm); ++ chip->pcm = NULL; ++ } ++} ++ ++static int __devinit snd_at73c213_pcm_new(struct snd_at73c213 *chip, int device) ++{ ++ struct snd_pcm *pcm; ++ int retval; ++ ++ retval = snd_pcm_new(chip->card, chip->card->shortname, ++ device, 1, 0, &pcm); ++ if (retval < 0) ++ goto out; ++ ++ pcm->private_data = chip; ++ pcm->private_free = snd_at73c213_pcm_free; ++ pcm->info_flags = SNDRV_PCM_INFO_BLOCK_TRANSFER; ++ strcpy(pcm->name, "at73c213"); ++ chip->pcm = pcm; ++ ++ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &at73c213_playback_ops); ++ ++ retval = snd_pcm_lib_preallocate_pages_for_all(chip->pcm, ++ SNDRV_DMA_TYPE_DEV, &chip->ssc->pdev->dev, ++ 64 * 1024, 64 * 1024); ++out: ++ return retval; ++} ++ ++static irqreturn_t snd_at73c213_interrupt(int irq, void *dev_id) ++{ ++ struct snd_at73c213 *chip = dev_id; ++ struct snd_pcm_runtime *runtime = chip->substream->runtime; ++ u32 status; ++ int offset; ++ int block_size; ++ int next_period; ++ int retval = IRQ_NONE; ++ ++ spin_lock(&chip->lock); ++ ++ block_size = frames_to_bytes(runtime, runtime->period_size); ++ status = ssc_readl(chip->ssc->regs, IMR); ++ ++ if (status & SSC_BIT(IMR_ENDTX)) { ++ chip->period++; ++ if (chip->period == runtime->periods) ++ chip->period = 0; ++ next_period = chip->period + 1; ++ if (next_period == runtime->periods) ++ next_period = 0; ++ ++ offset = block_size * next_period; ++ ++ ssc_writel(chip->ssc->regs, PDC_TNPR, ++ (long)runtime->dma_addr + offset); ++ ssc_writel(chip->ssc->regs, PDC_TNCR, runtime->period_size * 2); ++ retval = IRQ_HANDLED; ++ } ++ ++ ssc_readl(chip->ssc->regs, IMR); ++ spin_unlock(&chip->lock); ++ ++ if (status & SSC_BIT(IMR_ENDTX)) ++ snd_pcm_period_elapsed(chip->substream); ++ ++ return retval; ++} ++ ++/* ++ * Mixer functions. ++ */ ++static int snd_at73c213_mono_get(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ int reg = kcontrol->private_value & 0xff; ++ int shift = (kcontrol->private_value >> 8) & 0xff; ++ int mask = (kcontrol->private_value >> 16) & 0xff; ++ int invert = (kcontrol->private_value >> 24) & 0xff; ++ ++ spin_lock_irq(&chip->lock); ++ ++ ucontrol->value.integer.value[0] = (chip->reg_image[reg] >> shift) & mask; ++ ++ if (invert) ++ ucontrol->value.integer.value[0] = ++ (mask - ucontrol->value.integer.value[0]); ++ ++ spin_unlock_irq(&chip->lock); ++ ++ return 0; ++} ++ ++static int snd_at73c213_mono_put(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ int reg = kcontrol->private_value & 0xff; ++ int shift = (kcontrol->private_value >> 8) & 0xff; ++ int mask = (kcontrol->private_value >> 16) & 0xff; ++ int invert = (kcontrol->private_value >> 24) & 0xff; ++ int change, retval; ++ unsigned short val; ++ ++ val = (ucontrol->value.integer.value[0] & mask); ++ if (invert) ++ val = mask - val; ++ val <<= shift; ++ ++ spin_lock_irq(&chip->lock); ++ ++ val = (chip->reg_image[reg] & ~(mask << shift)) | val; ++ change = val != chip->reg_image[reg]; ++ retval = snd_at73c213_write_reg(chip, reg, val); ++ ++ spin_unlock_irq(&chip->lock); ++ ++ if (retval) ++ return retval; ++ ++ return change; ++} ++ ++static int snd_at73c213_stereo_info(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ int mask = (kcontrol->private_value >> 24) & 0xff; ++ ++ if (mask == 1) ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; ++ else ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; ++ ++ uinfo->count = 2; ++ uinfo->value.integer.min = 0; ++ uinfo->value.integer.max = mask; ++ ++ return 0; ++} ++ ++static int snd_at73c213_stereo_get(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ int left_reg = kcontrol->private_value & 0xff; ++ int right_reg = (kcontrol->private_value >> 8) & 0xff; ++ int shift_left = (kcontrol->private_value >> 16) & 0x07; ++ int shift_right = (kcontrol->private_value >> 19) & 0x07; ++ int mask = (kcontrol->private_value >> 24) & 0xff; ++ int invert = (kcontrol->private_value >> 22) & 1; ++ ++ spin_lock_irq(&chip->lock); ++ ++ ucontrol->value.integer.value[0] = ++ (chip->reg_image[left_reg] >> shift_left) & mask; ++ ucontrol->value.integer.value[1] = ++ (chip->reg_image[right_reg] >> shift_right) & mask; ++ ++ if (invert) { ++ ucontrol->value.integer.value[0] = ++ (mask - ucontrol->value.integer.value[0]); ++ ucontrol->value.integer.value[1] = ++ (mask - ucontrol->value.integer.value[1]); ++ } ++ ++ spin_unlock_irq(&chip->lock); ++ ++ return 0; ++} ++ ++static int snd_at73c213_stereo_put(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ int left_reg = kcontrol->private_value & 0xff; ++ int right_reg = (kcontrol->private_value >> 8) & 0xff; ++ int shift_left = (kcontrol->private_value >> 16) & 0x07; ++ int shift_right = (kcontrol->private_value >> 19) & 0x07; ++ int mask = (kcontrol->private_value >> 24) & 0xff; ++ int invert = (kcontrol->private_value >> 22) & 1; ++ int change, retval; ++ unsigned short val1, val2; ++ ++ val1 = ucontrol->value.integer.value[0] & mask; ++ val2 = ucontrol->value.integer.value[1] & mask; ++ if (invert) { ++ val1 = mask - val1; ++ val2 = mask - val2; ++ } ++ val1 <<= shift_left; ++ val2 <<= shift_right; ++ ++ spin_lock_irq(&chip->lock); ++ ++ val1 = (chip->reg_image[left_reg] & ~(mask << shift_left)) | val1; ++ val2 = (chip->reg_image[right_reg] & ~(mask << shift_right)) | val2; ++ change = val1 != chip->reg_image[left_reg] ++ || val2 != chip->reg_image[right_reg]; ++ retval = snd_at73c213_write_reg(chip, left_reg, val1); ++ if (retval) { ++ spin_unlock_irq(&chip->lock); ++ goto out; ++ } ++ retval = snd_at73c213_write_reg(chip, right_reg, val2); ++ if (retval) { ++ spin_unlock_irq(&chip->lock); ++ goto out; ++ } ++ ++ spin_unlock_irq(&chip->lock); ++ ++ return change; ++ ++out: ++ return retval; ++} ++ ++static int snd_at73c213_mono_switch_info(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; ++ uinfo->count = 1; ++ uinfo->value.integer.min = 0; ++ uinfo->value.integer.max = 1; ++ ++ return 0; ++} ++ ++static int snd_at73c213_mono_switch_get(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ int reg = kcontrol->private_value & 0xff; ++ int shift = (kcontrol->private_value >> 8) & 0xff; ++ int invert = (kcontrol->private_value >> 24) & 0xff; ++ ++ spin_lock_irq(&chip->lock); ++ ++ ucontrol->value.integer.value[0] = (chip->reg_image[reg] >> shift) & 0x01; ++ ++ if (invert) ++ ucontrol->value.integer.value[0] = ++ (0x01 - ucontrol->value.integer.value[0]); ++ ++ spin_unlock_irq(&chip->lock); ++ ++ return 0; ++} ++ ++static int snd_at73c213_mono_switch_put(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_value *ucontrol) ++{ ++ struct snd_at73c213 *chip = snd_kcontrol_chip(kcontrol); ++ int reg = kcontrol->private_value & 0xff; ++ int shift = (kcontrol->private_value >> 8) & 0xff; ++ int mask = (kcontrol->private_value >> 16) & 0xff; ++ int invert = (kcontrol->private_value >> 24) & 0xff; ++ int change, retval; ++ unsigned short val; ++ ++ if (ucontrol->value.integer.value[0]) ++ val = mask; ++ else ++ val = 0; ++ ++ if (invert) ++ val = mask - val; ++ val <<= shift; ++ ++ spin_lock_irq(&chip->lock); ++ ++ val |= (chip->reg_image[reg] & ~(mask << shift)); ++ change = val != chip->reg_image[reg]; ++ ++ retval = snd_at73c213_write_reg(chip, reg, val); ++ ++ spin_unlock_irq(&chip->lock); ++ ++ if (retval) ++ return retval; ++ ++ return change; ++} ++ ++static int snd_at73c213_pa_volume_info(struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; ++ uinfo->count = 1; ++ uinfo->value.integer.min = 0; ++ uinfo->value.integer.max = ((kcontrol->private_value >> 16) & 0xff) - 1; ++ ++ return 0; ++} ++ ++static int snd_at73c213_line_capture_volume_info( ++ struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; ++ uinfo->count = 2; ++ /* When inverted will give values 0x10001 => 0. */ ++ uinfo->value.integer.min = 14; ++ uinfo->value.integer.max = 31; ++ ++ return 0; ++} ++ ++static int snd_at73c213_aux_capture_volume_info( ++ struct snd_kcontrol *kcontrol, ++ struct snd_ctl_elem_info *uinfo) ++{ ++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; ++ uinfo->count = 1; ++ /* When inverted will give values 0x10001 => 0. */ ++ uinfo->value.integer.min = 14; ++ uinfo->value.integer.max = 31; ++ ++ return 0; ++} ++ ++#define AT73C213_MONO_SWITCH(xname, xindex, reg, shift, mask, invert) \ ++{ \ ++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ ++ .name = xname, \ ++ .index = xindex, \ ++ .info = snd_at73c213_mono_switch_info, \ ++ .get = snd_at73c213_mono_switch_get, \ ++ .put = snd_at73c213_mono_switch_put, \ ++ .private_value = (reg | (shift << 8) | (mask << 16) | (invert << 24)) \ ++} ++ ++#define AT73C213_STEREO(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \ ++{ \ ++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ ++ .name = xname, \ ++ .index = xindex, \ ++ .info = snd_at73c213_stereo_info, \ ++ .get = snd_at73c213_stereo_get, \ ++ .put = snd_at73c213_stereo_put, \ ++ .private_value = (left_reg | (right_reg << 8) \ ++ | (shift_left << 16) | (shift_right << 19) \ ++ | (mask << 24) | (invert << 22)) \ ++} ++ ++static struct snd_kcontrol_new snd_at73c213_controls[] __devinitdata = { ++AT73C213_STEREO("Master Playback Volume", 0, DAC_LMPG, DAC_RMPG, 0, 0, 0x1f, 1), ++AT73C213_STEREO("Master Playback Switch", 0, DAC_LMPG, DAC_RMPG, 5, 5, 1, 1), ++AT73C213_STEREO("PCM Playback Volume", 0, DAC_LLOG, DAC_RLOG, 0, 0, 0x1f, 1), ++AT73C213_STEREO("PCM Playback Switch", 0, DAC_LLOG, DAC_RLOG, 5, 5, 1, 1), ++AT73C213_MONO_SWITCH("Mono PA Playback Switch", 0, DAC_CTRL, DAC_CTRL_ONPADRV, 0x01, 0), ++{ ++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, ++ .name = "PA Playback Volume", ++ .index = 0, ++ .info = snd_at73c213_pa_volume_info, ++ .get = snd_at73c213_mono_get, ++ .put = snd_at73c213_mono_put, ++ .private_value = PA_CTRL | (PA_CTRL_APAGAIN << 8) | (0x0f << 16) | (1 << 24), ++}, ++AT73C213_MONO_SWITCH("PA High Gain Playback Switch", 0, PA_CTRL, PA_CTRL_APALP, 0x01, 1), ++AT73C213_MONO_SWITCH("PA Playback Switch", 0, PA_CTRL, PA_CTRL_APAON, 0x01, 0), ++{ ++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, ++ .name = "Aux Capture Volume", ++ .index = 0, ++ .info = snd_at73c213_aux_capture_volume_info, ++ .get = snd_at73c213_mono_get, ++ .put = snd_at73c213_mono_put, ++ .private_value = DAC_AUXG | (0 << 8) | (0x1f << 16) | (1 << 24), ++}, ++AT73C213_MONO_SWITCH("Aux Capture Switch", 0, DAC_CTRL, DAC_CTRL_ONAUXIN, 0x01, 0), ++{ ++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, ++ .name = "Line Capture Volume", ++ .index = 0, ++ .info = snd_at73c213_line_capture_volume_info, ++ .get = snd_at73c213_stereo_get, ++ .put = snd_at73c213_stereo_put, ++ .private_value = DAC_LLIG | (DAC_RLIG << 8) | (0 << 16) | (0 << 19) ++ | (0x1f << 24) | (1 << 22), ++}, ++AT73C213_MONO_SWITCH("Line Capture Switch", 0, DAC_CTRL, 0, 0x03, 0), ++}; ++ ++static int __devinit snd_at73c213_mixer(struct snd_at73c213 *chip) ++{ ++ struct snd_card *card; ++ int errval, idx; ++ ++ if (chip == NULL || chip->pcm == NULL) ++ return -EINVAL; ++ ++ card = chip->card; ++ ++ strcpy(card->mixername, chip->pcm->name); ++ ++ for (idx = 0; idx < ARRAY_SIZE(snd_at73c213_controls); idx++) { ++ errval = snd_ctl_add(card, ++ snd_ctl_new1(&snd_at73c213_controls[idx], ++ chip)); ++ if (errval < 0) ++ goto cleanup; ++ } ++ ++ return 0; ++ ++cleanup: ++ for (idx = 1; idx < ARRAY_SIZE(snd_at73c213_controls) + 1; idx++) { ++ struct snd_kcontrol *kctl; ++ kctl = snd_ctl_find_numid(card, idx); ++ if (kctl) ++ snd_ctl_remove(card, kctl); ++ } ++ return errval; ++} ++ ++/* ++ * Device functions ++ */ ++static int snd_at73c213_ssc_init(struct snd_at73c213 *chip) ++{ ++ /* ++ * Continuous clock output. ++ * Starts on falling TF. ++ * Delay 1 cycle (1 bit). ++ * Periode is 16 bit (16 - 1). ++ */ ++ ssc_writel(chip->ssc->regs, TCMR, ++ SSC_BF(TCMR_CKO, 1) ++ | SSC_BF(TCMR_START, 4) ++ | SSC_BF(TCMR_STTDLY, 1) ++ | SSC_BF(TCMR_PERIOD, 16 - 1)); ++ /* ++ * Data length is 16 bit (16 - 1). ++ * Transmit MSB first. ++ * Transmit 2 words each transfer. ++ * Frame sync length is 16 bit (16 - 1). ++ * Frame starts on negative pulse. ++ */ ++ ssc_writel(chip->ssc->regs, TFMR, ++ SSC_BF(TFMR_DATLEN, 16 - 1) ++ | SSC_BIT(TFMR_MSBF) ++ | SSC_BF(TFMR_DATNB, 1) ++ | SSC_BF(TFMR_FSLEN, 16 - 1) ++ | SSC_BF(TFMR_FSOS, 1)); ++ ++ return 0; ++} ++ ++static int snd_at73c213_chip_init(struct snd_at73c213 *chip) ++{ ++ int retval; ++ unsigned char dac_ctrl = 0; ++ ++ retval = snd_at73c213_set_bitrate(chip); ++ if (retval) ++ goto out; ++ ++ /* Enable DAC master clock. */ ++ clk_enable(chip->board->dac_clk); ++ ++ /* Initialize at73c213 on SPI bus. */ ++ retval = snd_at73c213_write_reg(chip, DAC_RST, 0x04); ++ if (retval) ++ goto out_clk; ++ msleep(1); ++ retval = snd_at73c213_write_reg(chip, DAC_RST, 0x03); ++ if (retval) ++ goto out_clk; ++ ++ /* Precharge everything. */ ++ retval = snd_at73c213_write_reg(chip, DAC_PRECH, 0xff); ++ if (retval) ++ goto out_clk; ++ retval = snd_at73c213_write_reg(chip, PA_CTRL, (1<<PA_CTRL_APAPRECH)); ++ if (retval) ++ goto out_clk; ++ retval = snd_at73c213_write_reg(chip, DAC_CTRL, ++ (1<<DAC_CTRL_ONLNOL) | (1<<DAC_CTRL_ONLNOR)); ++ if (retval) ++ goto out_clk; ++ ++ msleep(50); ++ ++ /* Stop precharging PA. */ ++ retval = snd_at73c213_write_reg(chip, PA_CTRL, ++ (1<<PA_CTRL_APALP) | 0x0f); ++ if (retval) ++ goto out_clk; ++ ++ msleep(450); ++ ++ /* Stop precharging DAC, turn on master power. */ ++ retval = snd_at73c213_write_reg(chip, DAC_PRECH, (1<<DAC_PRECH_ONMSTR)); ++ if (retval) ++ goto out_clk; ++ ++ msleep(1); ++ ++ /* Turn on DAC. */ ++ dac_ctrl = (1<<DAC_CTRL_ONDACL) | (1<<DAC_CTRL_ONDACR) ++ | (1<<DAC_CTRL_ONLNOL) | (1<<DAC_CTRL_ONLNOR); ++ ++ retval = snd_at73c213_write_reg(chip, DAC_CTRL, dac_ctrl); ++ if (retval) ++ goto out_clk; ++ ++ /* Mute sound. */ ++ retval = snd_at73c213_write_reg(chip, DAC_LMPG, 0x3f); ++ if (retval) ++ goto out_clk; ++ retval = snd_at73c213_write_reg(chip, DAC_RMPG, 0x3f); ++ if (retval) ++ goto out_clk; ++ retval = snd_at73c213_write_reg(chip, DAC_LLOG, 0x3f); ++ if (retval) ++ goto out_clk; ++ retval = snd_at73c213_write_reg(chip, DAC_RLOG, 0x3f); ++ if (retval) ++ goto out_clk; ++ retval = snd_at73c213_write_reg(chip, DAC_LLIG, 0x11); ++ if (retval) ++ goto out_clk; ++ retval = snd_at73c213_write_reg(chip, DAC_RLIG, 0x11); ++ if (retval) ++ goto out_clk; ++ retval = snd_at73c213_write_reg(chip, DAC_AUXG, 0x11); ++ if (retval) ++ goto out_clk; ++ ++ /* Enable I2S device, i.e. clock output. */ ++ ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXEN)); ++ ++ goto out; ++ ++out_clk: ++ clk_disable(chip->board->dac_clk); ++out: ++ return retval; ++} ++ ++static int snd_at73c213_dev_free(struct snd_device *device) ++{ ++ struct snd_at73c213 *chip = device->device_data; ++ ++ ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXDIS)); ++ if (chip->irq >= 0) { ++ free_irq(chip->irq, chip); ++ chip->irq = -1; ++ } ++ ++ return 0; ++} ++ ++static int __devinit snd_at73c213_dev_init(struct snd_card *card, ++ struct spi_device *spi) ++{ ++ static struct snd_device_ops ops = { ++ .dev_free = snd_at73c213_dev_free, ++ }; ++ struct snd_at73c213 *chip = get_chip(card); ++ int irq, retval; ++ ++ irq = chip->ssc->irq; ++ if (irq < 0) ++ return irq; ++ ++ spin_lock_init(&chip->lock); ++ chip->card = card; ++ chip->irq = -1; ++ ++ retval = request_irq(irq, snd_at73c213_interrupt, 0, "at73c213", chip); ++ if (retval) { ++ dev_dbg(&chip->spi->dev, "unable to request irq %d\n", irq); ++ goto out; ++ } ++ chip->irq = irq; ++ ++ memcpy(&chip->reg_image, &snd_at73c213_original_image, ++ sizeof(snd_at73c213_original_image)); ++ ++ retval = snd_at73c213_ssc_init(chip); ++ if (retval) ++ goto out_irq; ++ ++ retval = snd_at73c213_chip_init(chip); ++ if (retval) ++ goto out_irq; ++ ++ retval = snd_at73c213_pcm_new(chip, 0); ++ if (retval) ++ goto out_irq; ++ ++ retval = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); ++ if (retval) ++ goto out_irq; ++ ++ retval = snd_at73c213_mixer(chip); ++ if (retval) ++ goto out_snd_dev; ++ ++ snd_card_set_dev(card, &spi->dev); ++ ++ goto out; ++ ++out_snd_dev: ++ snd_device_free(card, chip); ++out_irq: ++ free_irq(chip->irq, chip); ++ chip->irq = -1; ++out: ++ return retval; ++} ++ ++static int snd_at73c213_probe(struct spi_device *spi) ++{ ++ struct snd_card *card; ++ struct snd_at73c213 *chip; ++ struct at73c213_board_info *board; ++ int retval; ++ char id[16]; ++ ++ board = spi->dev.platform_data; ++ if (!board) { ++ dev_dbg(&spi->dev, "no platform_data\n"); ++ return -ENXIO; ++ } ++ ++ if (!board->dac_clk) { ++ dev_dbg(&spi->dev, "no DAC clk\n"); ++ return -ENXIO; ++ } ++ ++ if (IS_ERR(board->dac_clk)) { ++ dev_dbg(&spi->dev, "no DAC clk\n"); ++ return PTR_ERR(board->dac_clk); ++ } ++ ++ retval = -ENOMEM; ++ ++ /* Allocate "card" using some unused identifiers. */ ++ snprintf(id, sizeof id, "at73c213_%d", board->ssc_id); ++ card = snd_card_new(-1, id, THIS_MODULE, sizeof(struct snd_at73c213)); ++ if (!card) ++ goto out; ++ ++ chip = card->private_data; ++ chip->spi = spi; ++ chip->board = board; ++ ++ chip->ssc = ssc_request(board->ssc_id); ++ if (IS_ERR(chip->ssc)) { ++ dev_dbg(&spi->dev, "could not get ssc%d device\n", ++ board->ssc_id); ++ retval = PTR_ERR(chip->ssc); ++ goto out_card; ++ } ++ ++ retval = snd_at73c213_dev_init(card, spi); ++ if (retval) ++ goto out_ssc; ++ ++ strcpy(card->driver, "at73c213"); ++ strcpy(card->shortname, board->shortname); ++ sprintf(card->longname, "%s on irq %d", card->shortname, chip->irq); ++ ++ retval = snd_card_register(card); ++ if (retval) ++ goto out_ssc; ++ ++ dev_set_drvdata(&spi->dev, card); ++ ++ goto out; ++ ++out_ssc: ++ ssc_free(chip->ssc); ++out_card: ++ snd_card_free(card); ++out: ++ return retval; ++} ++ ++static int __devexit snd_at73c213_remove(struct spi_device *spi) ++{ ++ struct snd_card *card = dev_get_drvdata(&spi->dev); ++ struct snd_at73c213 *chip = card->private_data; ++ int retval; ++ ++ /* Stop playback. */ ++ ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXDIS)); ++ ++ /* Mute sound. */ ++ retval = snd_at73c213_write_reg(chip, DAC_LMPG, 0x3f); ++ if (retval) ++ goto out; ++ retval = snd_at73c213_write_reg(chip, DAC_RMPG, 0x3f); ++ if (retval) ++ goto out; ++ retval = snd_at73c213_write_reg(chip, DAC_LLOG, 0x3f); ++ if (retval) ++ goto out; ++ retval = snd_at73c213_write_reg(chip, DAC_RLOG, 0x3f); ++ if (retval) ++ goto out; ++ retval = snd_at73c213_write_reg(chip, DAC_LLIG, 0x11); ++ if (retval) ++ goto out; ++ retval = snd_at73c213_write_reg(chip, DAC_RLIG, 0x11); ++ if (retval) ++ goto out; ++ retval = snd_at73c213_write_reg(chip, DAC_AUXG, 0x11); ++ if (retval) ++ goto out; ++ ++ /* Turn off PA. */ ++ retval = snd_at73c213_write_reg(chip, PA_CTRL, (chip->reg_image[PA_CTRL]|0x0f)); ++ if (retval) ++ goto out; ++ msleep(10); ++ retval = snd_at73c213_write_reg(chip, PA_CTRL, (1<<PA_CTRL_APALP)|0x0f); ++ if (retval) ++ goto out; ++ ++ /* Turn off external DAC. */ ++ retval = snd_at73c213_write_reg(chip, DAC_CTRL, 0x0c); ++ if (retval) ++ goto out; ++ msleep(2); ++ retval = snd_at73c213_write_reg(chip, DAC_CTRL, 0x00); ++ if (retval) ++ goto out; ++ ++ /* Turn off master power. */ ++ retval = snd_at73c213_write_reg(chip, DAC_PRECH, 0x00); ++ if (retval) ++ goto out; ++ ++out: ++ /* Stop DAC master clock. */ ++ clk_disable(chip->board->dac_clk); ++ ++ ssc_free(chip->ssc); ++ snd_card_free(card); ++ dev_set_drvdata(&spi->dev, NULL); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++static int snd_at73c213_suspend(struct spi_device *spi, pm_message_t msg) ++{ ++ struct snd_card *card = dev_get_drvdata(&spi->dev); ++ struct snd_at73c213 *chip = card->private_data; ++ ++ ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXDIS)); ++ clk_disable(chip->board->dac_clk); ++ ++ return 0; ++} ++ ++static int snd_at73c213_resume(struct spi_device *spi) ++{ ++ struct snd_card *card = dev_get_drvdata(&spi->dev); ++ struct snd_at73c213 *chip = card->private_data; ++ ++ clk_enable(chip->board->dac_clk); ++ ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXEN)); ++ ++ return 0; ++} ++#else ++#define snd_at73c213_suspend NULL ++#define snd_at73c213_resume NULL ++#endif ++ ++static struct spi_driver at73c213_driver = { ++ .driver = { ++ .name = "at73c213", ++ }, ++ .probe = snd_at73c213_probe, ++ .suspend = snd_at73c213_suspend, ++ .resume = snd_at73c213_resume, ++ .remove = __devexit_p(snd_at73c213_remove), ++}; ++ ++static int __init at73c213_init(void) ++{ ++ return spi_register_driver(&at73c213_driver); ++} ++module_init(at73c213_init); ++ ++static void __exit at73c213_exit(void) ++{ ++ spi_unregister_driver(&at73c213_driver); ++} ++module_exit(at73c213_exit); ++ ++MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); ++MODULE_DESCRIPTION("Sound driver for AT73C213 with Atmel SSC"); ++MODULE_LICENSE("GPL"); +diff --git a/sound/spi/at73c213.h b/sound/spi/at73c213.h +new file mode 100644 +index 0000000..fd8b372 +--- /dev/null ++++ b/sound/spi/at73c213.h +@@ -0,0 +1,119 @@ ++/* ++ * Driver for the AT73C213 16-bit stereo DAC on Atmel ATSTK1000 ++ * ++ * Copyright (C) 2006 - 2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License as ++ * published by the Free Software Foundation; either version 2 of the ++ * License, or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA ++ * 02111-1307, USA. ++ * ++ * The full GNU General Public License is included in this ++ * distribution in the file called COPYING. ++ */ ++ ++#ifndef _SND_AT73C213_H ++#define _SND_AT73C213_H ++ ++/* DAC control register */ ++#define DAC_CTRL 0x00 ++#define DAC_CTRL_ONPADRV 7 ++#define DAC_CTRL_ONAUXIN 6 ++#define DAC_CTRL_ONDACR 5 ++#define DAC_CTRL_ONDACL 4 ++#define DAC_CTRL_ONLNOR 3 ++#define DAC_CTRL_ONLNOL 2 ++#define DAC_CTRL_ONLNIR 1 ++#define DAC_CTRL_ONLNIL 0 ++ ++/* DAC left line in gain register */ ++#define DAC_LLIG 0x01 ++#define DAC_LLIG_LLIG 0 ++ ++/* DAC right line in gain register */ ++#define DAC_RLIG 0x02 ++#define DAC_RLIG_RLIG 0 ++ ++/* DAC Left Master Playback Gain Register */ ++#define DAC_LMPG 0x03 ++#define DAC_LMPG_LMPG 0 ++ ++/* DAC Right Master Playback Gain Register */ ++#define DAC_RMPG 0x04 ++#define DAC_RMPG_RMPG 0 ++ ++/* DAC Left Line Out Gain Register */ ++#define DAC_LLOG 0x05 ++#define DAC_LLOG_LLOG 0 ++ ++/* DAC Right Line Out Gain Register */ ++#define DAC_RLOG 0x06 ++#define DAC_RLOG_RLOG 0 ++ ++/* DAC Output Level Control Register */ ++#define DAC_OLC 0x07 ++#define DAC_OLC_RSHORT 7 ++#define DAC_OLC_ROLC 4 ++#define DAC_OLC_LSHORT 3 ++#define DAC_OLC_LOLC 0 ++ ++/* DAC Mixer Control Register */ ++#define DAC_MC 0x08 ++#define DAC_MC_INVR 5 ++#define DAC_MC_INVL 4 ++#define DAC_MC_RMSMIN2 3 ++#define DAC_MC_RMSMIN1 2 ++#define DAC_MC_LMSMIN2 1 ++#define DAC_MC_LMSMIN1 0 ++ ++/* DAC Clock and Sampling Frequency Control Register */ ++#define DAC_CSFC 0x09 ++#define DAC_CSFC_OVRSEL 4 ++ ++/* DAC Miscellaneous Register */ ++#define DAC_MISC 0x0A ++#define DAC_MISC_VCMCAPSEL 7 ++#define DAC_MISC_DINTSEL 4 ++#define DAC_MISC_DITHEN 3 ++#define DAC_MISC_DEEMPEN 2 ++#define DAC_MISC_NBITS 0 ++ ++/* DAC Precharge Control Register */ ++#define DAC_PRECH 0x0C ++#define DAC_PRECH_PRCHGPDRV 7 ++#define DAC_PRECH_PRCHGAUX1 6 ++#define DAC_PRECH_PRCHGLNOR 5 ++#define DAC_PRECH_PRCHGLNOL 4 ++#define DAC_PRECH_PRCHGLNIR 3 ++#define DAC_PRECH_PRCHGLNIL 2 ++#define DAC_PRECH_PRCHG 1 ++#define DAC_PRECH_ONMSTR 0 ++ ++/* DAC Auxiliary Input Gain Control Register */ ++#define DAC_AUXG 0x0D ++#define DAC_AUXG_AUXG 0 ++ ++/* DAC Reset Register */ ++#define DAC_RST 0x10 ++#define DAC_RST_RESMASK 2 ++#define DAC_RST_RESFILZ 1 ++#define DAC_RST_RSTZ 0 ++ ++/* Power Amplifier Control Register */ ++#define PA_CTRL 0x11 ++#define PA_CTRL_APAON 6 ++#define PA_CTRL_APAPRECH 5 ++#define PA_CTRL_APALP 4 ++#define PA_CTRL_APAGAIN 0 ++ ++#endif /* _SND_AT73C213_H */ |