diff options
Diffstat (limited to 'target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c')
| -rw-r--r-- | target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c new file mode 100644 index 000000000..7f4d45019 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c @@ -0,0 +1,211 @@ +/* + * Ralink RT288x SoC platform device registration + * + * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> + * + * 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/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/physmap.h> +#include <linux/etherdevice.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/rt2x00_platform.h> + +#include <asm/addrspace.h> + +#include <asm/mach-ralink/rt288x.h> +#include <asm/mach-ralink/rt288x_regs.h> +#include <asm/mach-ralink/ramips_eth_platform.h> + +#include "devices.h" + +static struct resource rt288x_flash0_resources[] = { + { + .flags = IORESOURCE_MEM, + .start = KSEG1ADDR(RT2880_FLASH0_BASE), + .end = KSEG1ADDR(RT2880_FLASH0_BASE) + + RT2880_FLASH0_SIZE - 1, + }, +}; + +struct physmap_flash_data rt288x_flash0_data; +static struct platform_device rt288x_flash0_device = { + .name = "physmap-flash", + .resource = rt288x_flash0_resources, + .num_resources = ARRAY_SIZE(rt288x_flash0_resources), + .dev = { + .platform_data = &rt288x_flash0_data, + }, +}; + +static struct resource rt288x_flash1_resources[] = { + { + .flags = IORESOURCE_MEM, + .start = KSEG1ADDR(RT2880_FLASH1_BASE), + .end = KSEG1ADDR(RT2880_FLASH1_BASE) + + RT2880_FLASH1_SIZE - 1, + }, +}; + +struct physmap_flash_data rt288x_flash1_data; +static struct platform_device rt288x_flash1_device = { + .name = "physmap-flash", + .resource = rt288x_flash1_resources, + .num_resources = ARRAY_SIZE(rt288x_flash1_resources), + .dev = { + .platform_data = &rt288x_flash1_data, + }, +}; + +static int rt288x_flash_instance __initdata; +void __init rt288x_register_flash(unsigned int id) +{ + struct platform_device *pdev; + struct physmap_flash_data *pdata; + u32 t; + int reg; + + switch (id) { + case 0: + pdev = &rt288x_flash0_device; + reg = MEMC_REG_FLASH_CFG0; + break; + case 1: + pdev = &rt288x_flash1_device; + reg = MEMC_REG_FLASH_CFG1; + break; + default: + return; + } + + t = rt288x_memc_rr(reg); + t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK; + + pdata = pdev->dev.platform_data; + switch (t) { + case FLASH_CFG_WIDTH_8BIT: + pdata->width = 1; + break; + case FLASH_CFG_WIDTH_16BIT: + pdata->width = 2; + break; + case FLASH_CFG_WIDTH_32BIT: + pdata->width = 4; + break; + default: + printk(KERN_ERR "RT288x: flash bank%u witdh is invalid\n", id); + return; + } + + pdev->id = rt288x_flash_instance; + + platform_device_register(pdev); + rt288x_flash_instance++; +} + +static struct resource rt288x_wifi_resources[] = { + { + .start = RT2880_WMAC_BASE, + .end = RT2880_WMAC_BASE + 0x3FFFF, + .flags = IORESOURCE_MEM, + }, { + .start = RT288X_CPU_IRQ_WNIC, + .end = RT288X_CPU_IRQ_WNIC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct rt2x00_platform_data rt288x_wifi_data; +static struct platform_device rt288x_wifi_device = { + .name = "rt2800_wmac", + .resource = rt288x_wifi_resources, + .num_resources = ARRAY_SIZE(rt288x_wifi_resources), + .dev = { + .platform_data = &rt288x_wifi_data, + } +}; + +void __init rt288x_register_wifi(void) +{ + rt288x_wifi_data.eeprom_file_name = "RT288X.eeprom"; + platform_device_register(&rt288x_wifi_device); +} + +static void rt288x_fe_reset(void) +{ + rt288x_sysc_wr(RT2880_RESET_FE, SYSC_REG_RESET_CTRL); +} + +static struct resource rt288x_eth_resources[] = { + { + .start = RT2880_FE_BASE, + .end = RT2880_FE_BASE + PAGE_SIZE - 1, + .flags = IORESOURCE_MEM, + }, { + .start = RT288X_CPU_IRQ_FE, + .end = RT288X_CPU_IRQ_FE, + .flags = IORESOURCE_IRQ, + }, +}; + +struct ramips_eth_platform_data rt288x_eth_data; +static struct platform_device rt288x_eth_device = { + .name = "ramips_eth", + .resource = rt288x_eth_resources, + .num_resources = ARRAY_SIZE(rt288x_eth_resources), + .dev = { + .platform_data = &rt288x_eth_data, + } +}; + +void __init rt288x_register_ethernet(void) +{ + struct clk *clk; + + clk = clk_get(NULL, "sys"); + if (IS_ERR(clk)) + panic("unable to get SYS clock, err=%ld", PTR_ERR(clk)); + + rt288x_eth_data.sys_freq = clk_get_rate(clk); + rt288x_eth_data.reset_fe = rt288x_fe_reset; + rt288x_eth_data.min_pkt_len = 64; + + if (!is_valid_ether_addr(rt288x_eth_data.mac)) + random_ether_addr(rt288x_eth_data.mac); + + platform_device_register(&rt288x_eth_device); +} + +static struct resource rt288x_wdt_resources[] = { + { + .start = RT2880_TIMER_BASE, + .end = RT2880_TIMER_BASE + RT2880_TIMER_SIZE - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device rt288x_wdt_device = { + .name = "ramips-wdt", + .id = -1, + .resource = rt288x_wdt_resources, + .num_resources = ARRAY_SIZE(rt288x_wdt_resources), +}; + +void __init rt288x_register_wdt(void) +{ + u32 t; + + /* enable WDT reset output on pin SRAM_CS_N */ + t = rt288x_sysc_rr(SYSC_REG_CLKCFG); + t |= CLKCFG_SRAM_CS_N_WDT; + rt288x_sysc_wr(t, SYSC_REG_CLKCFG); + + platform_device_register(&rt288x_wdt_device); +} |