linux/arch/arm/mach-omap2/board-rm680.c
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   1/*
   2 * Board support file for Nokia RM-680.
   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
  21#include <asm/mach/arch.h>
  22#include <asm/mach-types.h>
  23
  24#include <plat/i2c.h>
  25#include <plat/mmc.h>
  26#include <plat/usb.h>
  27#include <plat/gpmc.h>
  28#include <plat/common.h>
  29#include <plat/onenand.h>
  30
  31#include "mux.h"
  32#include "hsmmc.h"
  33#include "sdram-nokia.h"
  34
  35static struct regulator_consumer_supply rm680_vemmc_consumers[] = {
  36        REGULATOR_SUPPLY("vmmc", "mmci-omap-hs.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        .gpio_base              = OMAP_MAX_GPIO_LINES,
  75        .irq_base               = TWL4030_GPIO_IRQ_BASE,
  76        .irq_end                = TWL4030_GPIO_IRQ_END,
  77        .pullups                = BIT(0),
  78        .pulldowns              = BIT(1) | BIT(2) | BIT(8) | BIT(15),
  79};
  80
  81static struct twl4030_usb_data rm680_usb_data = {
  82        .usb_mode               = T2_USB_MODE_ULPI,
  83};
  84
  85static struct twl4030_platform_data rm680_twl_data = {
  86        .irq_base               = TWL4030_IRQ_BASE,
  87        .irq_end                = TWL4030_IRQ_END,
  88        .gpio                   = &rm680_gpio_data,
  89        .usb                    = &rm680_usb_data,
  90        /* add rest of the children here */
  91};
  92
  93static struct i2c_board_info __initdata rm680_twl_i2c_board_info[] = {
  94        {
  95                I2C_BOARD_INFO("twl5031", 0x48),
  96                .flags          = I2C_CLIENT_WAKE,
  97                .irq            = INT_34XX_SYS_NIRQ,
  98                .platform_data  = &rm680_twl_data,
  99        },
 100};
 101
 102static void __init rm680_i2c_init(void)
 103{
 104        omap_register_i2c_bus(1, 2900, rm680_twl_i2c_board_info,
 105                                ARRAY_SIZE(rm680_twl_i2c_board_info));
 106        omap_register_i2c_bus(2, 400, NULL, 0);
 107        omap_register_i2c_bus(3, 400, NULL, 0);
 108}
 109
 110#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
 111        defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
 112static struct omap_onenand_platform_data board_onenand_data[] = {
 113        {
 114                .gpio_irq       = 65,
 115                .flags          = ONENAND_SYNC_READWRITE,
 116        }
 117};
 118#endif
 119
 120/* eMMC */
 121static struct omap2_hsmmc_info mmc[] __initdata = {
 122        {
 123                .name           = "internal",
 124                .mmc            = 2,
 125                .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED,
 126                .gpio_cd        = -EINVAL,
 127                .gpio_wp        = -EINVAL,
 128        },
 129        { /* Terminator */ }
 130};
 131
 132static void __init rm680_peripherals_init(void)
 133{
 134        platform_add_devices(rm680_peripherals_devices,
 135                                ARRAY_SIZE(rm680_peripherals_devices));
 136        rm680_i2c_init();
 137        gpmc_onenand_init(board_onenand_data);
 138        omap2_hsmmc_init(mmc);
 139}
 140
 141static void __init rm680_init_irq(void)
 142{
 143        struct omap_sdrc_params *sdrc_params;
 144
 145        omap2_init_common_infrastructure();
 146        sdrc_params = nokia_get_sdram_timings();
 147        omap2_init_common_devices(sdrc_params, sdrc_params);
 148        omap_init_irq();
 149}
 150
 151#ifdef CONFIG_OMAP_MUX
 152static struct omap_board_mux board_mux[] __initdata = {
 153        { .reg_offset = OMAP_MUX_TERMINATOR },
 154};
 155#endif
 156
 157static struct omap_musb_board_data rm680_musb_data = {
 158        .interface_type = MUSB_INTERFACE_ULPI,
 159        .mode           = MUSB_PERIPHERAL,
 160        .power          = 100,
 161};
 162
 163static void __init rm680_init(void)
 164{
 165        omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 166        omap_serial_init();
 167        usb_musb_init(&rm680_musb_data);
 168        rm680_peripherals_init();
 169}
 170
 171static void __init rm680_map_io(void)
 172{
 173        omap2_set_globals_3xxx();
 174        omap34xx_map_common_io();
 175}
 176
 177MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
 178        .boot_params    = 0x80000100,
 179        .map_io         = rm680_map_io,
 180        .reserve        = omap_reserve,
 181        .init_irq       = rm680_init_irq,
 182        .init_machine   = rm680_init,
 183        .timer          = &omap_timer,
 184MACHINE_END
 185