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

   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 #include "common-board-devices.h"
  35
  36 static struct regulator_consumer_supply rm680_vemmc_consumers[] = {
  37         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
  38 };
  39
  40 /* Fixed regulator for internal eMMC */
  41 static struct regulator_init_data rm680_vemmc = {
  42         .constraints =  {
  43                 .name                   = "rm680_vemmc",
  44                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
  45                                         | REGULATOR_MODE_STANDBY,
  46                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS
  47                                         | REGULATOR_CHANGE_MODE,
  48         },
  49         .num_consumer_supplies          = ARRAY_SIZE(rm680_vemmc_consumers),
  50         .consumer_supplies              = rm680_vemmc_consumers,
  51 };
  52
  53 static struct fixed_voltage_config rm680_vemmc_config = {
  54         .supply_name            = "VEMMC",
  55         .microvolts             = 2900000,
  56         .gpio                   = 157,
  57         .startup_delay          = 150,
  58         .enable_high            = 1,
  59         .init_data              = &rm680_vemmc,
  60 };
  61
  62 static struct platform_device rm680_vemmc_device = {
  63         .name                   = "reg-fixed-voltage",
  64         .dev                    = {
  65                 .platform_data  = &rm680_vemmc_config,
  66         },
  67 };
  68
  69 static struct platform_device *rm680_peripherals_devices[] __initdata = {
  70         &rm680_vemmc_device,
  71 };
  72
  73 /* TWL */
  74 static struct twl4030_gpio_platform_data rm680_gpio_data = {
  75         .gpio_base              = OMAP_MAX_GPIO_LINES,
  76         .irq_base               = TWL4030_GPIO_IRQ_BASE,
  77         .irq_end                = TWL4030_GPIO_IRQ_END,
  78         .pullups                = BIT(0),
  79         .pulldowns              = BIT(1) | BIT(2) | BIT(8) | BIT(15),
  80 };
  81
  82 static struct twl4030_platform_data rm680_twl_data = {
  83         .gpio                   = &rm680_gpio_data,
  84         /* add rest of the children here */
  85 };
  86
  87 static void __init rm680_i2c_init(void)
  88 {
  89         omap3_pmic_get_config(&rm680_twl_data, TWL_COMMON_PDATA_USB, 0);
  90         omap_pmic_init(1, 2900, "twl5031", INT_34XX_SYS_NIRQ, &rm680_twl_data);
  91         omap_register_i2c_bus(2, 400, NULL, 0);
  92         omap_register_i2c_bus(3, 400, NULL, 0);
  93 }
  94
  95 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
  96         defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
  97 static struct omap_onenand_platform_data board_onenand_data[] = {
  98         {
  99                 .gpio_irq       = 65,
 100                 .flags          = ONENAND_SYNC_READWRITE,
 101         }
 102 };
 103 #endif
 104
 105 /* eMMC */
 106 static struct omap2_hsmmc_info mmc[] __initdata = {
 107         {
 108                 .name           = "internal",
 109                 .mmc            = 2,
 110                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED,
 111                 .gpio_cd        = -EINVAL,
 112                 .gpio_wp        = -EINVAL,
 113         },
 114         { /* Terminator */ }
 115 };
 116
 117 static void __init rm680_peripherals_init(void)
 118 {
 119         platform_add_devices(rm680_peripherals_devices,
 120                                 ARRAY_SIZE(rm680_peripherals_devices));
 121         rm680_i2c_init();
 122         gpmc_onenand_init(board_onenand_data);
 123         omap2_hsmmc_init(mmc);
 124 }
 125
 126 #ifdef CONFIG_OMAP_MUX
 127 static struct omap_board_mux board_mux[] __initdata = {
 128         { .reg_offset = OMAP_MUX_TERMINATOR },
 129 };
 130 #endif
 131
 132 static void __init rm680_init(void)
 133 {
 134         struct omap_sdrc_params *sdrc_params;
 135
 136         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 137         omap_serial_init();
 138
 139         sdrc_params = nokia_get_sdram_timings();
 140         omap_sdrc_init(sdrc_params, sdrc_params);
 141
 142         usb_musb_init(NULL);
 143         rm680_peripherals_init();
 144 }
 145
 146 MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
 147         .atag_offset    = 0x100,
 148         .reserve        = omap_reserve,
 149         .map_io         = omap3_map_io,
 150         .init_early     = omap3630_init_early,
 151         .init_irq       = omap3_init_irq,
 152         .init_machine   = rm680_init,
 153         .timer          = &omap3_timer,
 154 MACHINE_END