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Commit 7a079cab authored by Gregoire Gentil's avatar Gregoire Gentil Committed by Tony Lindgren
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omap3: Board file of Always Innovating OMAP3-based Touch Book 



Board file of Always Innovating OMAP3-based Touch Book

Signed-off-by: default avatarGregoire Gentil <gregoire@gentil.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent bf92a407

arch/arm/mach-omap2/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -90,6 +90,11 @@ config MACH_OMAP3_PANDORA 
	depends on ARCH_OMAP3 && ARCH_OMAP34XX

	select OMAP_PACKAGE_CBB



config MACH_OMAP3_TOUCHBOOK

	bool "OMAP3 Touch Book"

	depends on ARCH_OMAP3 && ARCH_OMAP34XX

	select BACKLIGHT_CLASS_DEVICE



config MACH_OMAP_3430SDP

	bool "OMAP 3430 SDP board"

	depends on ARCH_OMAP3 && ARCH_OMAP34XX

arch/arm/mach-omap2/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -105,7 +105,8 @@ obj-$(CONFIG_MACH_CM_T35) += board-cm-t35.o \ 
					   mmc-twl4030.o

obj-$(CONFIG_MACH_IGEP0020)		+= board-igep0020.o \

					   mmc-twl4030.o



obj-$(CONFIG_MACH_OMAP3_TOUCHBOOK)	+= board-omap3touchbook.o \

					   mmc-twl4030.o

obj-$(CONFIG_MACH_OMAP_4430SDP)		+= board-4430sdp.o



obj-$(CONFIG_MACH_OMAP3517EVM)     += board-am3517evm.o

arch/arm/mach-omap2/board-omap3touchbook.c

0 → 100644
+572 −0
Original line number Diff line number Diff line 
/*

 * linux/arch/arm/mach-omap2/board-omap3touchbook.c

 *

 * Copyright (C) 2009 Always Innovating

 *

 * Modified from mach-omap2/board-omap3beagleboard.c

 *

 * Initial code: Grégoire Gentil, Tim Yamin

 *

 * 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/delay.h>

#include <linux/err.h>

#include <linux/clk.h>

#include <linux/io.h>

#include <linux/leds.h>

#include <linux/gpio.h>

#include <linux/input.h>

#include <linux/gpio_keys.h>



#include <linux/mtd/mtd.h>

#include <linux/mtd/partitions.h>

#include <linux/mtd/nand.h>



#include <plat/mcspi.h>

#include <linux/spi/spi.h>



#include <linux/spi/ads7846.h>



#include <linux/regulator/machine.h>

#include <linux/i2c/twl4030.h>



#include <mach/hardware.h>

#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/map.h>

#include <asm/mach/flash.h>



#include <plat/board.h>

#include <plat/common.h>

#include <plat/gpmc.h>

#include <plat/nand.h>

#include <plat/usb.h>

#include <plat/timer-gp.h>



#include "mux.h"

#include "mmc-twl4030.h"



#include <asm/setup.h>



#define GPMC_CS0_BASE  0x60

#define GPMC_CS_SIZE   0x30



#define NAND_BLOCK_SIZE		SZ_128K



#define OMAP3_AC_GPIO		136

#define OMAP3_TS_GPIO		162

#define TB_BL_PWM_TIMER		9

#define TB_KILL_POWER_GPIO	168



unsigned long touchbook_revision;



static struct mtd_partition omap3touchbook_nand_partitions[] = {

	/* All the partition sizes are listed in terms of NAND block size */

	{

		.name		= "X-Loader",

		.offset		= 0,

		.size		= 4 * NAND_BLOCK_SIZE,

		.mask_flags	= MTD_WRITEABLE,	/* force read-only */

	},

	{

		.name		= "U-Boot",

		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */

		.size		= 15 * NAND_BLOCK_SIZE,

		.mask_flags	= MTD_WRITEABLE,	/* force read-only */

	},

	{

		.name		= "U-Boot Env",

		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x260000 */

		.size		= 1 * NAND_BLOCK_SIZE,

	},

	{

		.name		= "Kernel",

		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x280000 */

		.size		= 32 * NAND_BLOCK_SIZE,

	},

	{

		.name		= "File System",

		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x680000 */

		.size		= MTDPART_SIZ_FULL,

	},

};



static struct omap_nand_platform_data omap3touchbook_nand_data = {

	.options	= NAND_BUSWIDTH_16,

	.parts		= omap3touchbook_nand_partitions,

	.nr_parts	= ARRAY_SIZE(omap3touchbook_nand_partitions),

	.dma_channel	= -1,		/* disable DMA in OMAP NAND driver */

	.nand_setup	= NULL,

	.dev_ready	= NULL,

};



static struct resource omap3touchbook_nand_resource = {

	.flags		= IORESOURCE_MEM,

};



static struct platform_device omap3touchbook_nand_device = {

	.name		= "omap2-nand",

	.id		= -1,

	.dev		= {

		.platform_data	= &omap3touchbook_nand_data,

	},

	.num_resources	= 1,

	.resource	= &omap3touchbook_nand_resource,

};



#include "sdram-micron-mt46h32m32lf-6.h"



static struct twl4030_hsmmc_info mmc[] = {

	{

		.mmc		= 1,

		.wires		= 8,

		.gpio_wp	= 29,

	},

	{}	/* Terminator */

};



static struct platform_device omap3_touchbook_lcd_device = {

	.name		= "omap3touchbook_lcd",

	.id		= -1,

};



static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {

	.ctrl_name	= "internal",

};



static struct regulator_consumer_supply touchbook_vmmc1_supply = {

	.supply			= "vmmc",

};



static struct regulator_consumer_supply touchbook_vsim_supply = {

	.supply			= "vmmc_aux",

};



static struct gpio_led gpio_leds[];



static int touchbook_twl_gpio_setup(struct device *dev,

		unsigned gpio, unsigned ngpio)

{

	if (system_rev >= 0x20 && system_rev <= 0x34301000) {

		omap_mux_init_gpio(23, OMAP_PIN_INPUT);

		mmc[0].gpio_wp = 23;

	} else {

		omap_mux_init_gpio(29, OMAP_PIN_INPUT);

	}

	/* gpio + 0 is "mmc0_cd" (input/IRQ) */

	mmc[0].gpio_cd = gpio + 0;

	twl4030_mmc_init(mmc);



	/* link regulators to MMC adapters */

	touchbook_vmmc1_supply.dev = mmc[0].dev;

	touchbook_vsim_supply.dev = mmc[0].dev;



	/* REVISIT: need ehci-omap hooks for external VBUS

	 * power switch and overcurrent detect

	 */



	gpio_request(gpio + 1, "EHCI_nOC");

	gpio_direction_input(gpio + 1);



	/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */

	gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");

	gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);



	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */

	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;



	return 0;

}



static struct twl4030_gpio_platform_data touchbook_gpio_data = {

	.gpio_base	= OMAP_MAX_GPIO_LINES,

	.irq_base	= TWL4030_GPIO_IRQ_BASE,

	.irq_end	= TWL4030_GPIO_IRQ_END,

	.use_leds	= true,

	.pullups	= BIT(1),

	.pulldowns	= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)

				| BIT(15) | BIT(16) | BIT(17),

	.setup		= touchbook_twl_gpio_setup,

};



static struct regulator_consumer_supply touchbook_vdac_supply = {

	.supply		= "vdac",

	.dev		= &omap3_touchbook_lcd_device.dev,

};



static struct regulator_consumer_supply touchbook_vdvi_supply = {

	.supply		= "vdvi",

	.dev		= &omap3_touchbook_lcd_device.dev,

};



/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */

static struct regulator_init_data touchbook_vmmc1 = {

	.constraints = {

		.min_uV			= 1850000,

		.max_uV			= 3150000,

		.valid_modes_mask	= REGULATOR_MODE_NORMAL

					| REGULATOR_MODE_STANDBY,

		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE

					| REGULATOR_CHANGE_MODE

					| REGULATOR_CHANGE_STATUS,

	},

	.num_consumer_supplies	= 1,

	.consumer_supplies	= &touchbook_vmmc1_supply,

};



/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */

static struct regulator_init_data touchbook_vsim = {

	.constraints = {

		.min_uV			= 1800000,

		.max_uV			= 3000000,

		.valid_modes_mask	= REGULATOR_MODE_NORMAL

					| REGULATOR_MODE_STANDBY,

		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE

					| REGULATOR_CHANGE_MODE

					| REGULATOR_CHANGE_STATUS,

	},

	.num_consumer_supplies	= 1,

	.consumer_supplies	= &touchbook_vsim_supply,

};



/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */

static struct regulator_init_data touchbook_vdac = {

	.constraints = {

		.min_uV			= 1800000,

		.max_uV			= 1800000,

		.valid_modes_mask	= REGULATOR_MODE_NORMAL

					| REGULATOR_MODE_STANDBY,

		.valid_ops_mask		= REGULATOR_CHANGE_MODE

					| REGULATOR_CHANGE_STATUS,

	},

	.num_consumer_supplies	= 1,

	.consumer_supplies	= &touchbook_vdac_supply,

};



/* VPLL2 for digital video outputs */

static struct regulator_init_data touchbook_vpll2 = {

	.constraints = {

		.name			= "VDVI",

		.min_uV			= 1800000,

		.max_uV			= 1800000,

		.valid_modes_mask	= REGULATOR_MODE_NORMAL

					| REGULATOR_MODE_STANDBY,

		.valid_ops_mask		= REGULATOR_CHANGE_MODE

					| REGULATOR_CHANGE_STATUS,

	},

	.num_consumer_supplies	= 1,

	.consumer_supplies	= &touchbook_vdvi_supply,

};



static struct twl4030_usb_data touchbook_usb_data = {

	.usb_mode	= T2_USB_MODE_ULPI,

};



static struct twl4030_codec_audio_data touchbook_audio_data = {

	.audio_mclk = 26000000,

};



static struct twl4030_codec_data touchbook_codec_data = {

	.audio_mclk = 26000000,

	.audio = &touchbook_audio_data,

};



static struct twl4030_platform_data touchbook_twldata = {

	.irq_base	= TWL4030_IRQ_BASE,

	.irq_end	= TWL4030_IRQ_END,



	/* platform_data for children goes here */

	.usb		= &touchbook_usb_data,

	.gpio		= &touchbook_gpio_data,

	.codec		= &touchbook_codec_data,

	.vmmc1		= &touchbook_vmmc1,

	.vsim		= &touchbook_vsim,

	.vdac		= &touchbook_vdac,

	.vpll2		= &touchbook_vpll2,

};



static struct i2c_board_info __initdata touchbook_i2c_boardinfo[] = {

	{

		I2C_BOARD_INFO("twl4030", 0x48),

		.flags = I2C_CLIENT_WAKE,

		.irq = INT_34XX_SYS_NIRQ,

		.platform_data = &touchbook_twldata,

	},

};



static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {

	{

		I2C_BOARD_INFO("bq27200", 0x55),

	},

};



static int __init omap3_touchbook_i2c_init(void)

{

	/* Standard TouchBook bus */

	omap_register_i2c_bus(1, 2600, touchbook_i2c_boardinfo,

			ARRAY_SIZE(touchbook_i2c_boardinfo));



	/* Additional TouchBook bus */

	omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,

			ARRAY_SIZE(touchBook_i2c_boardinfo));



	return 0;

}



static void __init omap3_ads7846_init(void)

{

	if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) {

		printk(KERN_ERR "Failed to request GPIO %d for "

				"ads7846 pen down IRQ\n", OMAP3_TS_GPIO);

		return;

	}



	gpio_direction_input(OMAP3_TS_GPIO);

	omap_set_gpio_debounce(OMAP3_TS_GPIO, 1);

	omap_set_gpio_debounce_time(OMAP3_TS_GPIO, 0xa);

}



static struct ads7846_platform_data ads7846_config = {

	.x_min			= 100,

	.y_min			= 265,

	.x_max			= 3950,

	.y_max			= 3750,

	.x_plate_ohms		= 40,

	.pressure_max		= 255,

	.debounce_max		= 10,

	.debounce_tol		= 5,

	.debounce_rep		= 1,

	.gpio_pendown		= OMAP3_TS_GPIO,

	.keep_vref_on		= 1,

};



static struct omap2_mcspi_device_config ads7846_mcspi_config = {

	.turbo_mode	= 0,

	.single_channel	= 1,	/* 0: slave, 1: master */

};



static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = {

	{

		.modalias		= "ads7846",

		.bus_num		= 4,

		.chip_select		= 0,

		.max_speed_hz		= 1500000,

		.controller_data	= &ads7846_mcspi_config,

		.irq			= OMAP_GPIO_IRQ(OMAP3_TS_GPIO),

		.platform_data		= &ads7846_config,

	}

};



static struct gpio_led gpio_leds[] = {

	{

		.name			= "touchbook::usr0",

		.default_trigger	= "heartbeat",

		.gpio			= 150,

	},

	{

		.name			= "touchbook::usr1",

		.default_trigger	= "mmc0",

		.gpio			= 149,

	},

	{

		.name			= "touchbook::pmu_stat",

		.gpio			= -EINVAL,	/* gets replaced */

		.active_low		= true,

	},

};



static struct gpio_led_platform_data gpio_led_info = {

	.leds		= gpio_leds,

	.num_leds	= ARRAY_SIZE(gpio_leds),

};



static struct platform_device leds_gpio = {

	.name	= "leds-gpio",

	.id	= -1,

	.dev	= {

		.platform_data	= &gpio_led_info,

	},

};



static struct gpio_keys_button gpio_buttons[] = {

	{

		.code			= BTN_EXTRA,

		.gpio			= 7,

		.desc			= "user",

		.wakeup			= 1,

	},

	{

		.code			= KEY_POWER,

		.gpio			= 183,

		.desc			= "power",

		.wakeup			= 1,

	},

};



static struct gpio_keys_platform_data gpio_key_info = {

	.buttons	= gpio_buttons,

	.nbuttons	= ARRAY_SIZE(gpio_buttons),

};



static struct platform_device keys_gpio = {

	.name	= "gpio-keys",

	.id	= -1,

	.dev	= {

		.platform_data	= &gpio_key_info,

	},

};



static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {

	{ OMAP_TAG_LCD,		&omap3_touchbook_lcd_config },

};



#ifdef CONFIG_OMAP_MUX

static struct omap_board_mux board_mux[] __initdata = {

	{ .reg_offset = OMAP_MUX_TERMINATOR },

};

#else

#define board_mux	NULL

#endif



static void __init omap3_touchbook_init_irq(void)

{

	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);

	omap_board_config = omap3_touchbook_config;

	omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);

	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,

			     mt46h32m32lf6_sdrc_params);

	omap_init_irq();

#ifdef CONFIG_OMAP_32K_TIMER

	omap2_gp_clockevent_set_gptimer(12);

#endif

	omap_gpio_init();

}



static struct platform_device *omap3_touchbook_devices[] __initdata = {

	&omap3_touchbook_lcd_device,

	&leds_gpio,

	&keys_gpio,

};



static void __init omap3touchbook_flash_init(void)

{

	u8 cs = 0;

	u8 nandcs = GPMC_CS_NUM + 1;



	u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;



	/* find out the chip-select on which NAND exists */

	while (cs < GPMC_CS_NUM) {

		u32 ret = 0;

		ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);



		if ((ret & 0xC00) == 0x800) {

			printk(KERN_INFO "Found NAND on CS%d\n", cs);

			if (nandcs > GPMC_CS_NUM)

				nandcs = cs;

		}

		cs++;

	}



	if (nandcs > GPMC_CS_NUM) {

		printk(KERN_INFO "NAND: Unable to find configuration "

				 "in GPMC\n ");

		return;

	}



	if (nandcs < GPMC_CS_NUM) {

		omap3touchbook_nand_data.cs = nandcs;

		omap3touchbook_nand_data.gpmc_cs_baseaddr = (void *)

			(gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);

		omap3touchbook_nand_data.gpmc_baseaddr =

						(void *) (gpmc_base_add);



		printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);

		if (platform_device_register(&omap3touchbook_nand_device) < 0)

			printk(KERN_ERR "Unable to register NAND device\n");

	}

}



static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {



	.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,

	.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,

	.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,



	.phy_reset  = true,

	.reset_gpio_port[0]  = -EINVAL,

	.reset_gpio_port[1]  = 147,

	.reset_gpio_port[2]  = -EINVAL

};



static void omap3_touchbook_poweroff(void)

{

	int r;



	r = gpio_request(TB_KILL_POWER_GPIO, "DVI reset");

	if (r < 0) {

		printk(KERN_ERR "Unable to get kill power GPIO\n");

		return;

	}



	gpio_direction_output(TB_KILL_POWER_GPIO, 0);

}



static void __init early_touchbook_revision(char **p)

{

	if (!*p)

		return;



	strict_strtoul(*p, 10, &touchbook_revision);

}

__early_param("tbr=", early_touchbook_revision);



static void __init omap3_touchbook_init(void)

{

	pm_power_off = omap3_touchbook_poweroff;



	omap3_touchbook_i2c_init();

	platform_add_devices(omap3_touchbook_devices,

			ARRAY_SIZE(omap3_touchbook_devices));

	omap_serial_init();



	omap_mux_init_gpio(170, OMAP_PIN_INPUT);

	gpio_request(176, "DVI_nPD");

	/* REVISIT leave DVI powered down until it's needed ... */

	gpio_direction_output(176, true);



	/* Touchscreen and accelerometer */

	spi_register_board_info(omap3_ads7846_spi_board_info,

				ARRAY_SIZE(omap3_ads7846_spi_board_info));

	omap3_ads7846_init();

	usb_musb_init();

	usb_ehci_init(&ehci_pdata);

	omap3touchbook_flash_init();



	/* Ensure SDRC pins are mux'd for self-refresh */

	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);

	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);

}



static void __init omap3_touchbook_map_io(void)

{

	omap2_set_globals_343x();

	omap2_map_common_io();

}



MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")

	/* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */

	.phys_io	= 0x48000000,

	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,

	.boot_params	= 0x80000100,

	.map_io		= omap3_touchbook_map_io,

	.init_irq	= omap3_touchbook_init_irq,

	.init_machine	= omap3_touchbook_init,

	.timer		= &omap_timer,

MACHINE_END