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
  22 #include <asm/mach/arch.h>
  23 #include <asm/mach-types.h>
  24
  25 #include "common.h"
  26 #include "mux.h"
  27 #include "gpmc.h"
  28 #include "mmc.h"
  29 #include "hsmmc.h"
  30 #include "sdram-nokia.h"
  31 #include "common-board-devices.h"
  32 #include "gpmc-onenand.h"
  33
  34 static struct regulator_consumer_supply rm680_vemmc_consumers[] = {
  35         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
  36 };
  37
  38 /* Fixed regulator for internal eMMC */
  39 static struct regulator_init_data rm680_vemmc = {
  40         .constraints =  {
  41                 .name                   = "rm680_vemmc",
  42                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
  43                                         | REGULATOR_MODE_STANDBY,
  44                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS
  45                                         | REGULATOR_CHANGE_MODE,
  46         },
  47         .num_consumer_supplies          = ARRAY_SIZE(rm680_vemmc_consumers),
  48         .consumer_supplies              = rm680_vemmc_consumers,
  49 };
  50
  51 static struct fixed_voltage_config rm680_vemmc_config = {
  52         .supply_name            = "VEMMC",
  53         .microvolts             = 2900000,
  54         .gpio                   = 157,
  55         .startup_delay          = 150,
  56         .enable_high            = 1,
  57         .init_data              = &rm680_vemmc,
  58 };
  59
  60 static struct platform_device rm680_vemmc_device = {
  61         .name                   = "reg-fixed-voltage",
  62         .dev                    = {
  63                 .platform_data  = &rm680_vemmc_config,
  64         },
  65 };
  66
  67 static struct platform_device *rm680_peripherals_devices[] __initdata = {
  68         &rm680_vemmc_device,
  69 };
  70
  71 /* TWL */
  72 static struct twl4030_gpio_platform_data rm680_gpio_data = {
  73         .pullups                = BIT(0),
  74         .pulldowns              = BIT(1) | BIT(2) | BIT(8) | BIT(15),
  75 };
  76
  77 static struct twl4030_platform_data rm680_twl_data = {
  78         .gpio                   = &rm680_gpio_data,
  79         /* add rest of the children here */
  80 };
  81
  82 static void __init rm680_i2c_init(void)
  83 {
  84         omap3_pmic_get_config(&rm680_twl_data, TWL_COMMON_PDATA_USB, 0);
  85         omap_pmic_init(1, 2900, "twl5031", 7 + OMAP_INTC_START, &rm680_twl_data);
  86         omap_register_i2c_bus(2, 400, NULL, 0);
  87         omap_register_i2c_bus(3, 400, NULL, 0);
  88 }
  89
  90 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
  91         defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
  92 static struct omap_onenand_platform_data board_onenand_data[] = {
  93         {
  94                 .gpio_irq       = 65,
  95                 .flags          = ONENAND_SYNC_READWRITE,
  96         }
  97 };
  98 #endif
  99
 100 /* eMMC */
 101 static struct omap2_hsmmc_info mmc[] __initdata = {
 102         {
 103                 .name           = "internal",
 104                 .mmc            = 2,
 105                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED,
 106                 .gpio_cd        = -EINVAL,
 107                 .gpio_wp        = -EINVAL,
 108         },
 109         { /* Terminator */ }
 110 };
 111
 112 static void __init rm680_peripherals_init(void)
 113 {
 114         platform_add_devices(rm680_peripherals_devices,
 115                                 ARRAY_SIZE(rm680_peripherals_devices));
 116         rm680_i2c_init();
 117         gpmc_onenand_init(board_onenand_data);
 118         omap_hsmmc_init(mmc);
 119 }
 120
 121 #ifdef CONFIG_OMAP_MUX
 122 static struct omap_board_mux board_mux[] __initdata = {
 123         { .reg_offset = OMAP_MUX_TERMINATOR },
 124 };
 125 #endif
 126
 127 static void __init rm680_init(void)
 128 {
 129         struct omap_sdrc_params *sdrc_params;
 130
 131         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 132         omap_serial_init();
 133
 134         sdrc_params = nokia_get_sdram_timings();
 135         omap_sdrc_init(sdrc_params, sdrc_params);
 136
 137         usb_musb_init(NULL);
 138         rm680_peripherals_init();
 139 }
 140
 141 MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
 142         .atag_offset    = 0x100,
 143         .reserve        = omap_reserve,
 144         .map_io         = omap3_map_io,
 145         .init_early     = omap3630_init_early,
 146         .init_irq       = omap3_init_irq,
 147         .handle_irq     = omap3_intc_handle_irq,
 148         .init_machine   = rm680_init,
 149         .init_late      = omap3630_init_late,
 150         .timer          = &omap3_timer,
 151         .restart        = omap3xxx_restart,
 152 MACHINE_END
 153
 154 MACHINE_START(NOKIA_RM696, "Nokia RM-696 board")
 155         .atag_offset    = 0x100,
 156         .reserve        = omap_reserve,
 157         .map_io         = omap3_map_io,
 158         .init_early     = omap3630_init_early,
 159         .init_irq       = omap3_init_irq,
 160         .handle_irq     = omap3_intc_handle_irq,
 161         .init_machine   = rm680_init,
 162         .init_late      = omap3630_init_late,
 163         .timer          = &omap3_timer,
 164         .restart        = omap3xxx_restart,
 165 MACHINE_END