397 lines
9.7 KiB
C
397 lines
9.7 KiB
C
/*
|
|
* 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 <linux/usb/phy.h>
|
|
|
|
#include <linux/platform_data/spi-omap2-mcspi.h>
|
|
#include <linux/spi/spi.h>
|
|
|
|
#include <linux/spi/ads7846.h>
|
|
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/i2c/twl.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/flash.h>
|
|
#include <asm/system_info.h>
|
|
|
|
#include "common.h"
|
|
#include "gpmc.h"
|
|
#include <linux/platform_data/mtd-nand-omap2.h>
|
|
|
|
#include "mux.h"
|
|
#include "hsmmc.h"
|
|
#include "board-flash.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
|
|
|
|
#define NAND_CS 0
|
|
|
|
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,
|
|
.deferred = true,
|
|
},
|
|
{} /* 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)
|
|
{
|
|
/* gpio + 0 is "mmc0_cd" (input/IRQ) */
|
|
mmc[0].gpio_cd = gpio + 0;
|
|
omap_hsmmc_late_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 = {
|
|
.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 usbhs_phy_data phy_data[] __initdata = {
|
|
{
|
|
.port = 2,
|
|
.reset_gpio = 147,
|
|
.vcc_gpio = -EINVAL,
|
|
},
|
|
};
|
|
|
|
static struct platform_device *omap3_touchbook_devices[] __initdata = {
|
|
&leds_gpio,
|
|
&keys_gpio,
|
|
};
|
|
|
|
static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
|
|
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
|
|
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
|
|
};
|
|
|
|
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;
|
|
|
|
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);
|
|
}
|
|
omap_hsmmc_init(mmc);
|
|
|
|
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_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
|
|
usb_musb_init(NULL);
|
|
|
|
usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
|
|
usbhs_init(&usbhs_bdata);
|
|
board_nand_init(omap3touchbook_nand_partitions,
|
|
ARRAY_SIZE(omap3touchbook_nand_partitions), NAND_CS,
|
|
NAND_BUSWIDTH_16, NULL);
|
|
|
|
/* 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,
|
|
.init_late = omap3430_init_late,
|
|
.init_time = omap3_secure_sync32k_timer_init,
|
|
.restart = omap3xxx_restart,
|
|
MACHINE_END
|