forked from Minki/linux
3ef5d0071c
Requirement of gpmc header outside of mach-omap2 has been cutoff, move gpmc header file in plat-omap folder to local mach-omap2 folder Objective - common zImage participation of omap Signed-off-by: Afzal Mohammed <afzal@ti.com>
393 lines
9.6 KiB
C
393 lines
9.6 KiB
C
/*
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* linux/arch/arm/mach-omap2/board-omap3touchbook.c
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*
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* Copyright (C) 2009 Always Innovating
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*
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* Modified from mach-omap2/board-omap3beagleboard.c
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*
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* Initial code: Grégoire Gentil, Tim Yamin
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/leds.h>
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#include <linux/gpio.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/nand.h>
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#include <linux/mmc/host.h>
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#include <linux/platform_data/spi-omap2-mcspi.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/regulator/machine.h>
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#include <linux/i2c/twl.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/flash.h>
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#include <asm/system_info.h>
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#include "common.h"
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#include "gpmc.h"
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#include <linux/platform_data/mtd-nand-omap2.h>
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#include <plat/usb.h>
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#include "mux.h"
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#include "hsmmc.h"
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#include "board-flash.h"
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#include "common-board-devices.h"
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#include <asm/setup.h>
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#define OMAP3_AC_GPIO 136
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#define OMAP3_TS_GPIO 162
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#define TB_BL_PWM_TIMER 9
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#define TB_KILL_POWER_GPIO 168
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#define NAND_CS 0
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static unsigned long touchbook_revision;
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static struct mtd_partition omap3touchbook_nand_partitions[] = {
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/* All the partition sizes are listed in terms of NAND block size */
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{
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.name = "X-Loader",
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.offset = 0,
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.size = 4 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "U-Boot",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
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.size = 15 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "U-Boot Env",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
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.size = 1 * NAND_BLOCK_SIZE,
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},
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{
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.name = "Kernel",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
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.size = 32 * NAND_BLOCK_SIZE,
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},
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{
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.name = "File System",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
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.size = MTDPART_SIZ_FULL,
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},
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};
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#include "sdram-micron-mt46h32m32lf-6.h"
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static struct omap2_hsmmc_info mmc[] = {
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{
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.mmc = 1,
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.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
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.gpio_wp = 29,
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.deferred = true,
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},
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{} /* Terminator */
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};
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static struct regulator_consumer_supply touchbook_vmmc1_supply[] = {
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REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
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};
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static struct regulator_consumer_supply touchbook_vsim_supply[] = {
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REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
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};
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static struct gpio_led gpio_leds[];
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static int touchbook_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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/* gpio + 0 is "mmc0_cd" (input/IRQ) */
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mmc[0].gpio_cd = gpio + 0;
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omap_hsmmc_late_init(mmc);
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/* REVISIT: need ehci-omap hooks for external VBUS
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* power switch and overcurrent detect
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*/
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gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC");
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/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
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gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW,
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"nEN_USB_PWR");
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/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
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gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
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return 0;
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}
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static struct twl4030_gpio_platform_data touchbook_gpio_data = {
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.use_leds = true,
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.pullups = BIT(1),
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.pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
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| BIT(15) | BIT(16) | BIT(17),
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.setup = touchbook_twl_gpio_setup,
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};
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static struct regulator_consumer_supply touchbook_vdac_supply[] = {
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{
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.supply = "vdac",
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},
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};
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static struct regulator_consumer_supply touchbook_vdvi_supply[] = {
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{
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.supply = "vdvi",
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},
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};
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/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
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static struct regulator_init_data touchbook_vmmc1 = {
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.constraints = {
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.min_uV = 1850000,
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.max_uV = 3150000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(touchbook_vmmc1_supply),
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.consumer_supplies = touchbook_vmmc1_supply,
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};
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/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
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static struct regulator_init_data touchbook_vsim = {
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.constraints = {
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.min_uV = 1800000,
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.max_uV = 3000000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(touchbook_vsim_supply),
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.consumer_supplies = touchbook_vsim_supply,
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};
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static struct twl4030_platform_data touchbook_twldata = {
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/* platform_data for children goes here */
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.gpio = &touchbook_gpio_data,
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.vmmc1 = &touchbook_vmmc1,
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.vsim = &touchbook_vsim,
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};
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static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
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{
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I2C_BOARD_INFO("bq27200", 0x55),
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},
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};
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static int __init omap3_touchbook_i2c_init(void)
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{
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/* Standard TouchBook bus */
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omap3_pmic_get_config(&touchbook_twldata,
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TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
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TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
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touchbook_twldata.vdac->num_consumer_supplies =
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ARRAY_SIZE(touchbook_vdac_supply);
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touchbook_twldata.vdac->consumer_supplies = touchbook_vdac_supply;
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touchbook_twldata.vpll2->constraints.name = "VDVI";
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touchbook_twldata.vpll2->num_consumer_supplies =
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ARRAY_SIZE(touchbook_vdvi_supply);
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touchbook_twldata.vpll2->consumer_supplies = touchbook_vdvi_supply;
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omap3_pmic_init("twl4030", &touchbook_twldata);
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/* Additional TouchBook bus */
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omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
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ARRAY_SIZE(touchBook_i2c_boardinfo));
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return 0;
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}
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static struct ads7846_platform_data ads7846_pdata = {
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.x_min = 100,
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.y_min = 265,
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.x_max = 3950,
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.y_max = 3750,
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.x_plate_ohms = 40,
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.pressure_max = 255,
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.debounce_max = 10,
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.debounce_tol = 5,
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.debounce_rep = 1,
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.gpio_pendown = OMAP3_TS_GPIO,
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.keep_vref_on = 1,
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};
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static struct gpio_led gpio_leds[] = {
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{
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.name = "touchbook::usr0",
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.default_trigger = "heartbeat",
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.gpio = 150,
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},
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{
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.name = "touchbook::usr1",
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.default_trigger = "mmc0",
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.gpio = 149,
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},
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{
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.name = "touchbook::pmu_stat",
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.gpio = -EINVAL, /* gets replaced */
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.active_low = true,
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},
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};
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static struct gpio_led_platform_data gpio_led_info = {
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.leds = gpio_leds,
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.num_leds = ARRAY_SIZE(gpio_leds),
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};
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static struct platform_device leds_gpio = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &gpio_led_info,
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},
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};
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static struct gpio_keys_button gpio_buttons[] = {
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{
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.code = BTN_EXTRA,
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.gpio = 7,
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.desc = "user",
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.wakeup = 1,
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},
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{
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.code = KEY_POWER,
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.gpio = 183,
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.desc = "power",
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data gpio_key_info = {
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.buttons = gpio_buttons,
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.nbuttons = ARRAY_SIZE(gpio_buttons),
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};
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static struct platform_device keys_gpio = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &gpio_key_info,
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},
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};
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#ifdef CONFIG_OMAP_MUX
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static struct omap_board_mux board_mux[] __initdata = {
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{ .reg_offset = OMAP_MUX_TERMINATOR },
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};
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#endif
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static struct platform_device *omap3_touchbook_devices[] __initdata = {
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&leds_gpio,
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&keys_gpio,
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};
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static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
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.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
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.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
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.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
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.phy_reset = true,
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.reset_gpio_port[0] = -EINVAL,
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.reset_gpio_port[1] = 147,
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.reset_gpio_port[2] = -EINVAL
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};
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static void omap3_touchbook_poweroff(void)
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{
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int pwr_off = TB_KILL_POWER_GPIO;
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if (gpio_request_one(pwr_off, GPIOF_OUT_INIT_LOW, "DVI reset") < 0)
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printk(KERN_ERR "Unable to get kill power GPIO\n");
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}
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static int __init early_touchbook_revision(char *p)
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{
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if (!p)
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return 0;
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return strict_strtoul(p, 10, &touchbook_revision);
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}
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early_param("tbr", early_touchbook_revision);
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static void __init omap3_touchbook_init(void)
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{
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omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
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pm_power_off = omap3_touchbook_poweroff;
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if (system_rev >= 0x20 && system_rev <= 0x34301000) {
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omap_mux_init_gpio(23, OMAP_PIN_INPUT);
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mmc[0].gpio_wp = 23;
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} else {
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omap_mux_init_gpio(29, OMAP_PIN_INPUT);
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}
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omap_hsmmc_init(mmc);
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omap3_touchbook_i2c_init();
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platform_add_devices(omap3_touchbook_devices,
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ARRAY_SIZE(omap3_touchbook_devices));
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omap_serial_init();
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omap_sdrc_init(mt46h32m32lf6_sdrc_params,
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mt46h32m32lf6_sdrc_params);
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omap_mux_init_gpio(170, OMAP_PIN_INPUT);
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/* REVISIT leave DVI powered down until it's needed ... */
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gpio_request_one(176, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
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/* Touchscreen and accelerometer */
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omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata);
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usb_musb_init(NULL);
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usbhs_init(&usbhs_bdata);
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board_nand_init(omap3touchbook_nand_partitions,
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ARRAY_SIZE(omap3touchbook_nand_partitions), NAND_CS,
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NAND_BUSWIDTH_16, NULL);
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/* Ensure SDRC pins are mux'd for self-refresh */
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omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
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omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
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}
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MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
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/* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
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.atag_offset = 0x100,
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.reserve = omap_reserve,
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.map_io = omap3_map_io,
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.init_early = omap3430_init_early,
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.init_irq = omap3_init_irq,
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.handle_irq = omap3_intc_handle_irq,
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.init_machine = omap3_touchbook_init,
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.init_late = omap3430_init_late,
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.timer = &omap3_secure_timer,
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.restart = omap_prcm_restart,
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MACHINE_END
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