LXR linux/arch/arm/mach-omap2/board-rm680.c

   1/*
   2 * Board support file for Nokia N950 (RM-680) / N9 (RM-696).
   3 *
   4 * Copyright (C) 2010 Nokia
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2 as
   8 * published by the Free Software Foundation.
   9 */
  10
  11#include <linux/io.h>
  12#include <linux/i2c.h>
  13#include <linux/gpio.h>
  14#include <linux/init.h>
  15#include <linux/i2c/twl.h>
  16#include <linux/platform_device.h>
  17#include <linux/regulator/fixed.h>
  18#include <linux/regulator/machine.h>
  19#include <linux/regulator/consumer.h>
  20#include <linux/platform_data/mtd-onenand-omap2.h>
  21#include <linux/usb/phy.h>
  22
  23#include <asm/mach/arch.h>
  24#include <asm/mach-types.h>
  25
  26#include "common.h"
  27#include "mux.h"
  28#include "gpmc.h"
  29#include "mmc.h"
  30#include "hsmmc.h"
  31#include "sdram-nokia.h"
  32#include "common-board-devices.h"
  33#include "gpmc-onenand.h"
  34
  35static struct regulator_consumer_supply rm680_vemmc_consumers[] = {
  36        REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
  37};
  38
  39/* Fixed regulator for internal eMMC */
  40static struct regulator_init_data rm680_vemmc = {
  41        .constraints =  {
  42                .name                   = "rm680_vemmc",
  43                .valid_modes_mask       = REGULATOR_MODE_NORMAL
  44                                        | REGULATOR_MODE_STANDBY,
  45                .valid_ops_mask         = REGULATOR_CHANGE_STATUS
  46                                        | REGULATOR_CHANGE_MODE,
  47        },
  48        .num_consumer_supplies          = ARRAY_SIZE(rm680_vemmc_consumers),
  49        .consumer_supplies              = rm680_vemmc_consumers,
  50};
  51
  52static struct fixed_voltage_config rm680_vemmc_config = {
  53        .supply_name            = "VEMMC",
  54        .microvolts             = 2900000,
  55        .gpio                   = 157,
  56        .startup_delay          = 150,
  57        .enable_high            = 1,
  58        .init_data              = &rm680_vemmc,
  59};
  60
  61static struct platform_device rm680_vemmc_device = {
  62        .name                   = "reg-fixed-voltage",
  63        .dev                    = {
  64                .platform_data  = &rm680_vemmc_config,
  65        },
  66};
  67
  68static struct platform_device *rm680_peripherals_devices[] __initdata = {
  69        &rm680_vemmc_device,
  70};
  71
  72/* TWL */
  73static struct twl4030_gpio_platform_data rm680_gpio_data = {
  74        .pullups                = BIT(0),
  75        .pulldowns              = BIT(1) | BIT(2) | BIT(8) | BIT(15),
  76};
  77
  78static struct twl4030_platform_data rm680_twl_data = {
  79        .gpio                   = &rm680_gpio_data,
  80        /* add rest of the children here */
  81};
  82
  83static void __init rm680_i2c_init(void)
  84{
  85        omap3_pmic_get_config(&rm680_twl_data, TWL_COMMON_PDATA_USB, 0);
  86        omap_pmic_init(1, 2900, "twl5031", 7 + OMAP_INTC_START, &rm680_twl_data);
  87        omap_register_i2c_bus(2, 400, NULL, 0);
  88        omap_register_i2c_bus(3, 400, NULL, 0);
  89}
  90
  91#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
  92        defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
  93static struct omap_onenand_platform_data board_onenand_data[] = {
  94        {
  95                .gpio_irq       = 65,
  96                .flags          = ONENAND_SYNC_READWRITE,
  97        }
  98};
  99#endif
 100
 101/* eMMC */
 102static struct omap2_hsmmc_info mmc[] __initdata = {
 103        {
 104                .name           = "internal",
 105                .mmc            = 2,
 106                .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED,
 107                .gpio_cd        = -EINVAL,
 108                .gpio_wp        = -EINVAL,
 109        },
 110        { /* Terminator */ }
 111};
 112
 113static void __init rm680_peripherals_init(void)
 114{
 115        platform_add_devices(rm680_peripherals_devices,
 116                                ARRAY_SIZE(rm680_peripherals_devices));
 117        rm680_i2c_init();
 118        gpmc_onenand_init(board_onenand_data);
 119        omap_hsmmc_init(mmc);
 120}
 121
 122#ifdef CONFIG_OMAP_MUX
 123static struct omap_board_mux board_mux[] __initdata = {
 124        { .reg_offset = OMAP_MUX_TERMINATOR },
 125};
 126#endif
 127
 128static void __init rm680_init(void)
 129{
 130        struct omap_sdrc_params *sdrc_params;
 131
 132        omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 133        omap_serial_init();
 134
 135        sdrc_params = nokia_get_sdram_timings();
 136        omap_sdrc_init(sdrc_params, sdrc_params);
 137
 138        usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
 139        usb_musb_init(NULL);
 140        rm680_peripherals_init();
 141}
 142
 143MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
 144        .atag_offset    = 0x100,
 145        .reserve        = omap_reserve,
 146        .map_io         = omap3_map_io,
 147        .init_early     = omap3630_init_early,
 148        .init_irq       = omap3_init_irq,
 149        .handle_irq     = omap3_intc_handle_irq,
 150        .init_machine   = rm680_init,
 151        .init_late      = omap3630_init_late,
 152        .init_time      = omap3_sync32k_timer_init,
 153        .restart        = omap3xxx_restart,
 154MACHINE_END
 155
 156MACHINE_START(NOKIA_RM696, "Nokia RM-696 board")
 157        .atag_offset    = 0x100,
 158        .reserve        = omap_reserve,
 159        .map_io         = omap3_map_io,
 160        .init_early     = omap3630_init_early,
 161        .init_irq       = omap3_init_irq,
 162        .handle_irq     = omap3_intc_handle_irq,
 163        .init_machine   = rm680_init,
 164        .init_late      = omap3630_init_late,
 165        .init_time      = omap3_sync32k_timer_init,
 166        .restart        = omap3xxx_restart,
 167MACHINE_END
 168