/*
* 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 <linux/mmc/host.h>
#include <plat/mcspi.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/regulator/machine.h>
#include <linux/i2c/twl.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 "common.h"
#include <plat/gpmc.h>
#include <plat/nand.h>
#include <plat/usb.h>
#include "mux.h"
#include "hsmmc.h"
#include "common-board-devices.h"
#include <asm/setup.h>
#define OMAP3_AC_GPIO 136
#define OMAP3_TS_GPIO 162
#define TB_BL_PWM_TIMER 9
#define TB_KILL_POWER_GPIO 168
static 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,
},
};
#include "sdram-micron-mt46h32m32lf-6.h"
static struct omap2_hsmmc_info mmc[] = {
{
.mmc = 1,
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
.gpio_wp = 29,
},
{} /* Terminator */
};
static struct regulator_consumer_supply touchbook_vmmc1_supply[] = {
REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
};
static struct regulator_consumer_supply touchbook_vsim_supply[] = {
REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
};
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;
omap2_hsmmc_init(mmc);
/* REVISIT: need ehci-omap hooks for external VBUS
* power switch and overcurrent detect
*/
gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC");
/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW,
"nEN_USB_PWR");
/* 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",
},
};
static struct regulator_consumer_supply touchbook_vdvi_supply[] = {
{
.supply = "vdvi",
},
};
/* 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 = ARRAY_SIZE(touchbook_vmmc1_supply),
.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 = ARRAY_SIZE(touchbook_vsim_supply),
.consumer_supplies = touchbook_vsim_supply,
};
static struct twl4030_platform_data touchbook_twldata = {
/* platform_data for children goes here */
.gpio = &touchbook_gpio_data,
.vmmc1 = &touchbook_vmmc1,
.vsim = &touchbook_vsim,
};
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 */
omap3_pmic_get_config(&touchbook_twldata,
TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
touchbook_twldata.vdac->num_consumer_supplies =
ARRAY_SIZE(touchbook_vdac_supply);
touchbook_twldata.vdac->consumer_supplies = touchbook_vdac_supply;
touchbook_twldata.vpll2->constraints.name = "VDVI";
touchbook_twldata.vpll2->num_consumer_supplies =
ARRAY_SIZE(touchbook_vdvi_supply);
touchbook_twldata.vpll2->consumer_supplies = touchbook_vdvi_supply;
omap3_pmic_init("twl4030", &touchbook_twldata);
/* Additional TouchBook bus */
omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
ARRAY_SIZE(touchBook_i2c_boardinfo));
return 0;
}
static struct ads7846_platform_data ads7846_pdata = {
.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 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,
},
};
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static struct platform_device *omap3_touchbook_devices[] __initdata = {
&leds_gpio,
&keys_gpio,
};
static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
.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 pwr_off = TB_KILL_POWER_GPIO;
if (gpio_request_one(pwr_off, GPIOF_OUT_INIT_LOW, "DVI reset") < 0)
printk(KERN_ERR "Unable to get kill power GPIO\n");
}
static int __init early_touchbook_revision(char *p)
{
if (!p)
return 0;
return strict_strtoul(p, 10, &touchbook_revision);
}
early_param("tbr", early_touchbook_revision);
static void __init omap3_touchbook_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
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_sdrc_init(mt46h32m32lf6_sdrc_params,
mt46h32m32lf6_sdrc_params);
omap_mux_init_gpio(170, OMAP_PIN_INPUT);
/* REVISIT leave DVI powered down until it's needed ... */
gpio_request_one(176, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
/* Touchscreen and accelerometer */
omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata);
usb_musb_init(NULL);
usbhs_init(&usbhs_bdata);
omap_nand_flash_init(NAND_BUSWIDTH_16, omap3touchbook_nand_partitions,
ARRAY_SIZE(omap3touchbook_nand_partitions));
/* 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);
}
MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
/* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap3_map_io,
.init_early = omap3430_init_early,
.init_irq = omap3_init_irq,
.handle_irq = omap3_intc_handle_irq,
.init_machine = omap3_touchbook_init,
.timer = &omap3_secure_timer,
.restart = omap_prcm_restart,
MACHINE_END
