arch/arm/mach-omap1/board-h2-mmc.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-h2-mmc.c
   3  *
   4  * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
   5  * Author: Felipe Balbi <felipe.lima@indt.org.br>
   6  *
   7  * This code is based on linux/arch/arm/mach-omap2/board-n800-mmc.c, which is:
   8  * Copyright (C) 2006 Nokia Corporation
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14 #include <linux/gpio.h>
  15 #include <linux/platform_device.h>
  16
  17 #include <linux/i2c/tps65010.h>
  18
  19 #include <plat/mmc.h>
  20
  21 #include "board-h2.h"
  22
  23 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
  24
  25 static int mmc_set_power(struct device *dev, int slot, int power_on,
  26                                 int vdd)
  27 {
  28         gpio_set_value(H2_TPS_GPIO_MMC_PWR_EN, power_on);
  29         return 0;
  30 }
  31
  32 static int mmc_late_init(struct device *dev)
  33 {
  34         int ret = gpio_request(H2_TPS_GPIO_MMC_PWR_EN, "MMC power");
  35         if (ret < 0)
  36                 return ret;
  37
  38         gpio_direction_output(H2_TPS_GPIO_MMC_PWR_EN, 0);
  39
  40         return ret;
  41 }
  42
  43 static void mmc_cleanup(struct device *dev)
  44 {
  45         gpio_free(H2_TPS_GPIO_MMC_PWR_EN);
  46 }
  47
  48 /*
  49  * H2 could use the following functions tested:
  50  * - mmc_get_cover_state that uses OMAP_MPUIO(1)
  51  * - mmc_get_wp that uses OMAP_MPUIO(3)
  52  */
  53 static struct omap_mmc_platform_data mmc1_data = {
  54         .nr_slots                       = 1,
  55         .init                           = mmc_late_init,
  56         .cleanup                        = mmc_cleanup,
  57         .slots[0]       = {
  58                 .set_power              = mmc_set_power,
  59                 .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  60                 .name                   = "mmcblk",
  61         },
  62 };
  63
  64 static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
  65
  66 void __init h2_mmc_init(void)
  67 {
  68         mmc_data[0] = &mmc1_data;
  69         omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
  70 }
  71
  72 #else
  73
  74 void __init h2_mmc_init(void)
  75 {
  76 }
  77
  78 #endif