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board-rm680.c

/*
 * Board support file for Nokia RM-680.
 *
 * Copyright (C) 2010 Nokia
 *
 * 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/io.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/i2c/twl.h>
#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/consumer.h>

#include <asm/mach/arch.h>
#include <asm/mach-types.h>

#include <plat/i2c.h>
#include <plat/mmc.h>
#include <plat/usb.h>
#include <plat/gpmc.h>
#include <plat/common.h>
#include <plat/onenand.h>

#include "mux.h"
#include "hsmmc.h"
#include "sdram-nokia.h"

static struct regulator_consumer_supply rm680_vemmc_consumers[] = {
      REGULATOR_SUPPLY("vmmc", "mmci-omap-hs.1"),
};

/* Fixed regulator for internal eMMC */
static struct regulator_init_data rm680_vemmc = {
      .constraints =    {
            .name             = "rm680_vemmc",
            .min_uV                 = 2900000,
            .max_uV                 = 2900000,
            .apply_uV         = 1,
            .valid_modes_mask = REGULATOR_MODE_NORMAL
                              | REGULATOR_MODE_STANDBY,
            .valid_ops_mask         = REGULATOR_CHANGE_STATUS
                              | REGULATOR_CHANGE_MODE,
      },
      .num_consumer_supplies        = ARRAY_SIZE(rm680_vemmc_consumers),
      .consumer_supplies            = rm680_vemmc_consumers,
};

static struct fixed_voltage_config rm680_vemmc_config = {
      .supply_name            = "VEMMC",
      .microvolts       = 2900000,
      .gpio             = 157,
      .startup_delay          = 150,
      .enable_high            = 1,
      .init_data        = &rm680_vemmc,
};

static struct platform_device rm680_vemmc_device = {
      .name             = "reg-fixed-voltage",
      .dev              = {
            .platform_data    = &rm680_vemmc_config,
      },
};

static struct platform_device *rm680_peripherals_devices[] __initdata = {
      &rm680_vemmc_device,
};

/* TWL */
static struct twl4030_gpio_platform_data rm680_gpio_data = {
      .gpio_base        = OMAP_MAX_GPIO_LINES,
      .irq_base         = TWL4030_GPIO_IRQ_BASE,
      .irq_end          = TWL4030_GPIO_IRQ_END,
      .pullups          = BIT(0),
      .pulldowns        = BIT(1) | BIT(2) | BIT(8) | BIT(15),
};

static struct twl4030_usb_data rm680_usb_data = {
      .usb_mode         = T2_USB_MODE_ULPI,
};

static struct twl4030_platform_data rm680_twl_data = {
      .irq_base         = TWL4030_IRQ_BASE,
      .irq_end          = TWL4030_IRQ_END,
      .gpio             = &rm680_gpio_data,
      .usb              = &rm680_usb_data,
      /* add rest of the children here */
};

static struct i2c_board_info __initdata rm680_twl_i2c_board_info[] = {
      {
            I2C_BOARD_INFO("twl5031", 0x48),
            .flags            = I2C_CLIENT_WAKE,
            .irq        = INT_34XX_SYS_NIRQ,
            .platform_data    = &rm680_twl_data,
      },
};

static void __init rm680_i2c_init(void)
{
      omap_register_i2c_bus(1, 2900, rm680_twl_i2c_board_info,
                        ARRAY_SIZE(rm680_twl_i2c_board_info));
      omap_register_i2c_bus(2, 400, NULL, 0);
      omap_register_i2c_bus(3, 400, NULL, 0);
}

#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
      defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
static struct omap_onenand_platform_data board_onenand_data[] = {
      {
            .gpio_irq   = 65,
            .flags            = ONENAND_SYNC_READWRITE,
      }
};
#endif

/* eMMC */
static struct omap2_hsmmc_info mmc[] __initdata = {
      {
            .name       = "internal",
            .mmc        = 2,
            .caps       = MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED,
            .gpio_cd    = -EINVAL,
            .gpio_wp    = -EINVAL,
      },
      { /* Terminator */ }
};

static void __init rm680_peripherals_init(void)
{
      platform_add_devices(rm680_peripherals_devices,
                        ARRAY_SIZE(rm680_peripherals_devices));
      rm680_i2c_init();
      gpmc_onenand_init(board_onenand_data);
      omap2_hsmmc_init(mmc);
}

static void __init rm680_init_irq(void)
{
      struct omap_sdrc_params *sdrc_params;

      omap2_init_common_infrastructure();
      sdrc_params = nokia_get_sdram_timings();
      omap2_init_common_devices(sdrc_params, sdrc_params);
      omap_init_irq();
}

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
      { .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif

static struct omap_musb_board_data rm680_musb_data = {
      .interface_type   = MUSB_INTERFACE_ULPI,
      .mode       = MUSB_PERIPHERAL,
      .power            = 100,
};

static void __init rm680_init(void)
{
      omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
      omap_serial_init();
      usb_musb_init(&rm680_musb_data);
      rm680_peripherals_init();
}

static void __init rm680_map_io(void)
{
      omap2_set_globals_3xxx();
      omap34xx_map_common_io();
}

MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
      .boot_params      = 0x80000100,
      .map_io           = rm680_map_io,
      .reserve    = omap_reserve,
      .init_irq   = rm680_init_irq,
      .init_machine     = rm680_init,
      .timer            = &omap_timer,
MACHINE_END

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