1 files changed, 414 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/mach-ip7k/board-ip7500iap.c b/target/linux/ubicom32/files/arch/ubicom32/mach-ip7k/board-ip7500iap.c
new file mode 100644
index 000000000..f565cdda1
--- /dev/null
+++ b/target/linux/ubicom32/files/arch/ubicom32/mach-ip7k/board-ip7500iap.c
@@ -0,0 +1,414 @@
+/*
+ * arch/ubicom32/mach-ip7k/board-ip7500iap.c
+ *   Support for IP7500 Internet Audio Player
+ *
+ * This file supports the IP7500 Internet Audio Player:
+ *	8007-1110  Rev 1.0
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port 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.
+ *
+ * The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/device.h>
+#include <linux/gpio.h>
+#include <asm/board.h>
+
+#include <linux/delay.h>
+
+#include <linux/platform_device.h>
+#include <asm/audio.h>
+#include <linux/i2c.h>
+#include <linux/i2c-gpio.h>
+
+#include <asm/ubicom32sd.h>
+#include <asm/sd_tio.h>
+
+#include <asm/ubicom32bl.h>
+
+#include <asm/machdep.h>
+
+/******************************************************************************
+ * SD/IO Port F (Slot 1) platform data
+ */
+static struct resource ip7500iap_portf_sd_resources[] = {
+	/*
+	 * Send IRQ
+	 */
+	[0] = {
+		/*
+		 * The init routine will query the devtree and fill this in
+		 */
+		.flags	= IORESOURCE_IRQ,
+	},
+
+	/*
+	 * Receive IRQ
+	 */
+	[1] = {
+		/*
+		 * The init routine will query the devtree and fill this in
+		 */
+		.flags	= IORESOURCE_IRQ,
+	},
+
+	/*
+	 * Memory Mapped Registers
+	 */
+	[2] = {
+		/*
+		 * The init routine will query the devtree and fill this in
+		 */
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct ubicom32sd_card ip7500iap_portf_sd_cards[] = {
+	[0] = {
+		.pin_wp		= GPIO_RF_7,
+		.wp_polarity	= 1,
+		.pin_pwr	= GPIO_RF_8,
+		.pin_cd		= GPIO_RF_6,
+	},
+};
+
+static struct ubicom32sd_platform_data ip7500iap_portf_sd_platform_data = {
+	.ncards		= 1,
+	.cards		= ip7500iap_portf_sd_cards,
+};
+
+static struct platform_device ip7500iap_portf_sd_device = {
+	.name		= "ubicom32sd",
+	.id		= 0,
+	.resource	= ip7500iap_portf_sd_resources,
+	.num_resources	= ARRAY_SIZE(ip7500iap_portf_sd_resources),
+	.dev		= {
+			.platform_data = &ip7500iap_portf_sd_platform_data,
+	},
+
+};
+
+/*
+ * ip7500iap_portf_sd_init
+ */
+static void ip7500iap_portf_sd_init(void)
+{
+	/*
+	 * Check the device tree for the sd_tio
+	 */
+	struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd");
+	if (!sd_node) {
+		printk(KERN_INFO "PortF SDTIO not found\n");
+		return;
+	}
+
+	/*
+	 * Fill in the resources and platform data from devtree information
+	 */
+	ip7500iap_portf_sd_resources[0].start = sd_node->dn.sendirq;
+	ip7500iap_portf_sd_resources[1].start = sd_node->dn.recvirq;
+	ip7500iap_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
+	ip7500iap_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
+
+	platform_device_register(&ip7500iap_portf_sd_device);
+}
+
+/******************************************************************************
+ * SD/IO Port B (Slot 2) platform data
+ */
+static struct resource ip7500iap_portb_sd_resources[] = {
+	/*
+	 * Send IRQ
+	 */
+	[0] = {
+		/*
+		 * The init routine will query the devtree and fill this in
+		 */
+		.flags	= IORESOURCE_IRQ,
+	},
+
+	/*
+	 * Receive IRQ
+	 */
+	[1] = {
+		/*
+		 * The init routine will query the devtree and fill this in
+		 */
+		.flags	= IORESOURCE_IRQ,
+	},
+
+	/*
+	 * Memory Mapped Registers
+	 */
+	[2] = {
+		/*
+		 * The init routine will query the devtree and fill this in
+		 */
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct ubicom32sd_card ip7500iap_portb_sd_cards[] = {
+	[0] = {
+		.pin_wp		= GPIO_RB_13,
+		.wp_polarity	= 1,
+		.pin_pwr	= GPIO_RB_11,
+		.pin_cd		= GPIO_RB_12,
+	},
+};
+
+static struct ubicom32sd_platform_data ip7500iap_portb_sd_platform_data = {
+	.ncards		= 1,
+	.cards		= ip7500iap_portb_sd_cards,
+};
+
+static struct platform_device ip7500iap_portb_sd_device = {
+	.name		= "ubicom32sd",
+	.id		= 1,
+	.resource	= ip7500iap_portb_sd_resources,
+	.num_resources	= ARRAY_SIZE(ip7500iap_portb_sd_resources),
+	.dev		= {
+			.platform_data = &ip7500iap_portb_sd_platform_data,
+	},
+
+};
+
+/*
+ * ip7500iap_portb_sd_init
+ */
+static void ip7500iap_portb_sd_init(void)
+{
+	/*
+	 * Check the device tree for the sd_tio
+	 */
+	struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd");
+	if (!sd_node) {
+		printk(KERN_INFO "PortB SDTIO not found\n");
+		return;
+	}
+
+	/*
+	 * Fill in the resources and platform data from devtree information
+	 */
+	ip7500iap_portb_sd_resources[0].start = sd_node->dn.sendirq;
+	ip7500iap_portb_sd_resources[1].start = sd_node->dn.recvirq;
+	ip7500iap_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
+	ip7500iap_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
+
+	platform_device_register(&ip7500iap_portb_sd_device);
+}
+
+/******************************************************************************
+ * Touch controller
+ *
+ * Connected via I2C bus, interrupt on PA6
+ */
+#include <linux/i2c/tsc2007.h>
+
+/*
+ * ip7500iap_tsc2007_exit_platform_hw
+ */
+static void ip7500iap_tsc2007_exit_platform_hw(void)
+{
+	UBICOM32_IO_PORT(RA)->ctl0 &= ~(0x03 << 19);
+	gpio_free(GPIO_RA_6);
+}
+
+/*
+ * ip7500iap_tsc2007_init_platform_hw
+ */
+static int ip7500iap_tsc2007_init_platform_hw(void)
+{
+	int res = gpio_request(GPIO_RA_6, "TSC2007_IRQ");
+	if (res) {
+		return res;
+	}
+
+	UBICOM32_IO_PORT(RA)->ctl0 &= ~(0x03 << 19);
+	UBICOM32_IO_PORT(RA)->ctl0 |= (0x02 << 19);
+	return 0;
+}
+
+/*
+ * ip7500iap_tsc2007_get_pendown_state
+ */
+static int ip7500iap_tsc2007_get_pendown_state(void)
+{
+	return !gpio_get_value(GPIO_RA_6);
+}
+
+static struct tsc2007_platform_data ip7500iap_tsc2007_data = {
+	.model			= 2007,
+	.x_plate_ohms		= 350,
+	.get_pendown_state	= ip7500iap_tsc2007_get_pendown_state,
+	.init_platform_hw	= ip7500iap_tsc2007_init_platform_hw,
+	.exit_platform_hw	= ip7500iap_tsc2007_exit_platform_hw,
+};
+
+/******************************************************************************
+ * i2c devices
+ *
+ * DO NOT CHANGE THE ORDER HERE unless you know how this works.  There
+ * are hardcoded indicies which refer to the order of drivers listed here.
+ */
+static struct i2c_board_info __initdata ip7500iap_i2c_board_info[] = {
+	/*
+	 * U6, CS4350 DAC, address 0x4B
+	 */
+	{
+		.type		= "cs4350",
+		.addr		= 0x4B,
+	},
+
+	/*
+	 * U20, S35390A RTC, address 0x30
+	 */
+	{
+		.type           = "s35390a",
+		.addr           = 0x30,
+	},
+
+	/*
+	 * U9, TSC2007 Touch screen controller, address 0x49, irq RA6
+	 */
+	{
+		.type		= "tsc2007",
+		.addr		= 0x49,
+		.irq		= 46,
+		.platform_data	= &ip7500iap_tsc2007_data,
+	},
+};
+
+/*
+ * I2C bus on the board, SDA PE4, SCL PE5
+ */
+static struct i2c_gpio_platform_data ip7500iap_i2c_data = {
+	.sda_pin		= GPIO_RF_14,
+	.scl_pin		= GPIO_RF_13,
+	.sda_is_open_drain	= 0,
+	.scl_is_open_drain	= 0,
+	.udelay			= 50,
+};
+
+static struct platform_device ip7500iap_i2c_device = {
+	.name	= "i2c-gpio",
+	.id	= 0,
+	.dev	= {
+		.platform_data = &ip7500iap_i2c_data,
+	},
+};
+
+/******************************************************************************
+ * Backlight on the board PD0, hardware PWM
+ */
+static struct ubicom32bl_platform_data ip7500iap_backlight_data = {
+	.type			= UBICOM32BL_TYPE_PWM,
+	.pwm_channel		= 2,
+	.pwm_prescale		= 15,
+	.pwm_period		= 60,
+	.default_intensity	= 0x80,
+};
+
+static struct platform_device ip7500iap_backlight_device = {
+	.name	= "ubicom32bl",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &ip7500iap_backlight_data,
+	},
+};
+
+/******************************************************************************
+ * Devices on this board
+ */
+static struct platform_device *ip7500iap_devices[] __initdata = {
+	&ip7500iap_i2c_device,
+	&ip7500iap_backlight_device,
+};
+
+/*
+ * ip7500iap_power_off
+ *	Called to turn the power off for this board
+ */
+static void ip7500iap_power_off(void)
+{
+	gpio_set_value(GPIO_RF_11, 0);
+}
+
+/*
+ * ip7500iap_init
+ *	Called to add the devices which we have on this board
+ */
+static int __init ip7500iap_init(void)
+{
+	struct platform_device *audio_dev;
+	struct platform_device *audio_dev2;
+	int ret;
+
+	board_init();
+
+	ubi_gpio_init();
+
+	/*
+	 * Hold the POWER_HOLD line
+	 */
+	ret = gpio_request(GPIO_RF_11, "POWER_HOLD");
+	if (ret) {
+		printk(KERN_ERR "%s: could not request POWER_HOLD GPIO\n", __FUNCTION__);
+	}
+	gpio_direction_output(GPIO_RF_11, 1);
+	mach_power_off = ip7500iap_power_off;
+
+	/*
+	 * DAC nRESET line
+	 */
+	ret = gpio_request(GPIO_RE_7, "DAC_nRESET");
+	if (ret) {
+		printk(KERN_ERR "%s: could not request DAC_nRESET GPIO\n", __FUNCTION__);
+	}
+	gpio_direction_output(GPIO_RE_7, 0);
+	udelay(1);
+	gpio_set_value(GPIO_RE_7, 1);
+
+	/*
+	 * Bring up any SDIO slots
+	 */
+	ip7500iap_portb_sd_init();
+	ip7500iap_portf_sd_init();
+
+	/*
+	 * Bring up audio devices
+	 */
+	platform_add_devices(ip7500iap_devices, ARRAY_SIZE(ip7500iap_devices));
+
+	audio_dev = audio_device_alloc("snd-ubi32-cs4350", "audio", "audio-i2sout", 0);
+	if (audio_dev) {
+		ip7500iap_i2c_board_info[0].platform_data = audio_dev;
+	}
+
+	audio_dev2 = audio_device_alloc("snd-ubi32-generic", "audio", "audio-spdifout", 0);
+	if (audio_dev2) {
+		platform_device_register(audio_dev2);
+	}
+
+	printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
+	i2c_register_board_info(0, ip7500iap_i2c_board_info, ARRAY_SIZE(ip7500iap_i2c_board_info));
+
+	printk(KERN_INFO "IP7500 Internet Audio Player\n");
+
+	return 0;
+}
+
+arch_initcall(ip7500iap_init);