arch/arm/mach-omap2/board-omap3logic.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3logic.c
   3  *
   4  * Copyright (C) 2010 Li-Pro.Net
   5  * Stephan Linz <linz@li-pro.net>
   6  *
   7  * Copyright (C) 2010 Logic Product Development, Inc.
   8  * Peter Barada <peter.barada@logicpd.com>
   9  *
  10  * Modified from Beagle, EVM, and RX51
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/delay.h>
  21 #include <linux/err.h>
  22 #include <linux/clk.h>
  23 #include <linux/io.h>
  24 #include <linux/gpio.h>
  25
  26 #include <linux/regulator/machine.h>
  27
  28 #include <linux/i2c/twl.h>
  29 #include <linux/mmc/host.h>
  30
  31 #include <mach/hardware.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include "mux.h"
  37 #include "hsmmc.h"
  38
  39 #include <plat/mux.h>
  40 #include <plat/board.h>
  41 #include <plat/common.h>
  42 #include <plat/gpmc.h>
  43 #include <plat/timer-gp.h>
  44 #include <plat/sdrc.h>
  45 #include <plat/control.h>
  46
  47 #define OMAP3LOGIC_SMSC911X_CS                  1
  48
  49 #define OMAP3530_LV_SOM_MMC_GPIO_CD             110
  50 #define OMAP3530_LV_SOM_MMC_GPIO_WP             126
  51 #define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ       152
  52
  53 #define OMAP3_TORPEDO_MMC_GPIO_CD               127
  54 #define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ         129
  55
  56 static struct regulator_consumer_supply omap3logic_vmmc1_supply = {
  57         .supply                 = "vmmc",
  58 };
  59
  60 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
  61 static struct regulator_init_data omap3logic_vmmc1 = {
  62         .constraints = {
  63                 .name                   = "VMMC1",
  64                 .min_uV                 = 1850000,
  65                 .max_uV                 = 3150000,
  66                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
  67                                         | REGULATOR_MODE_STANDBY,
  68                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
  69                                         | REGULATOR_CHANGE_MODE
  70                                         | REGULATOR_CHANGE_STATUS,
  71         },
  72         .num_consumer_supplies  = 1,
  73         .consumer_supplies      = &omap3logic_vmmc1_supply,
  74 };
  75
  76 static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
  77         .gpio_base      = OMAP_MAX_GPIO_LINES,
  78         .irq_base       = TWL4030_GPIO_IRQ_BASE,
  79         .irq_end        = TWL4030_GPIO_IRQ_END,
  80         .use_leds       = true,
  81         .pullups        = BIT(1),
  82         .pulldowns      = BIT(2)  | BIT(6)  | BIT(7)  | BIT(8)
  83                         | BIT(13) | BIT(15) | BIT(16) | BIT(17),
  84 };
  85
  86 static struct twl4030_platform_data omap3logic_twldata = {
  87         .irq_base       = TWL4030_IRQ_BASE,
  88         .irq_end        = TWL4030_IRQ_END,
  89
  90         /* platform_data for children goes here */
  91         .gpio           = &omap3logic_gpio_data,
  92         .vmmc1          = &omap3logic_vmmc1,
  93 };
  94
  95 static struct i2c_board_info __initdata omap3logic_i2c_boardinfo[] = {
  96         {
  97                 I2C_BOARD_INFO("twl4030", 0x48),
  98                 .flags = I2C_CLIENT_WAKE,
  99                 .irq = INT_34XX_SYS_NIRQ,
 100                 .platform_data = &omap3logic_twldata,
 101         },
 102 };
 103
 104 static int __init omap3logic_i2c_init(void)
 105 {
 106         omap_register_i2c_bus(1, 2600, omap3logic_i2c_boardinfo,
 107                                 ARRAY_SIZE(omap3logic_i2c_boardinfo));
 108         return 0;
 109 }
 110
 111 static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
 112         {
 113                 .name           = "external",
 114                 .mmc            = 1,
 115                 .caps           = MMC_CAP_4_BIT_DATA,
 116                 .gpio_cd        = -EINVAL,
 117                 .gpio_wp        = -EINVAL,
 118         },
 119         {}      /* Terminator */
 120 };
 121
 122 static void __init board_mmc_init(void)
 123 {
 124         if (machine_is_omap3530_lv_som()) {
 125                 /* OMAP3530 LV SOM board */
 126                 board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
 127                 board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
 128                 omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
 129                 omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
 130         } else if (machine_is_omap3_torpedo()) {
 131                 /* OMAP3 Torpedo board */
 132                 board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
 133                 omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
 134         } else {
 135                 /* unsupported board */
 136                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 137                 return;
 138         }
 139
 140         omap2_hsmmc_init(board_mmc_info);
 141         /* link regulators to MMC adapters */
 142         omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev;
 143 }
 144
 145 static void __init omap3logic_init_irq(void)
 146 {
 147         omap2_init_common_hw(NULL, NULL);
 148         omap_init_irq();
 149         omap_gpio_init();
 150 }
 151
 152 static void __init omap3logic_init(void)
 153 {
 154         omap3logic_i2c_init();
 155         omap_serial_init();
 156         board_mmc_init();
 157         /* Ensure SDRC pins are mux'd for self-refresh */
 158         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 159         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 160 }
 161
 162 MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
 163         .phys_io        = 0x48000000,
 164         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 165         .boot_params    = 0x80000100,
 166         .map_io         = omap3_map_io,
 167         .init_irq       = omap3logic_init_irq,
 168         .init_machine   = omap3logic_init,
 169         .timer          = &omap_timer,
 170 MACHINE_END
 171
 172 MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
 173         .phys_io        = 0x48000000,
 174         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 175         .boot_params    = 0x80000100,
 176         .map_io         = omap3_map_io,
 177         .init_irq       = omap3logic_init_irq,
 178         .init_machine   = omap3logic_init,
 179         .timer          = &omap_timer,
 180 MACHINE_END