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
  15 #include <linux/platform_device.h>
  16
  17 #include <linux/i2c/tps65010.h>
  18
  19 #include <plat/mmc.h>
  20 #include <mach/gpio.h>
  21
  22 #include "board-h2.h"
  23
  24 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
  25
  26 static int mmc_set_power(struct device *dev, int slot, int power_on,
  27                                 int vdd)
  28 {
  29         gpio_set_value(H2_TPS_GPIO_MMC_PWR_EN, power_on);
  30         return 0;
  31 }
  32
  33 static int mmc_late_init(struct device *dev)
  34 {
  35         int ret = gpio_request(H2_TPS_GPIO_MMC_PWR_EN, "MMC power");
  36         if (ret < 0)
  37                 return ret;
  38
  39         gpio_direction_output(H2_TPS_GPIO_MMC_PWR_EN, 0);
  40
  41         return ret;
  42 }
  43
  44 static void mmc_cleanup(struct device *dev)
  45 {
  46         gpio_free(H2_TPS_GPIO_MMC_PWR_EN);
  47 }
  48
  49 /*
  50  * H2 could use the following functions tested:
  51  * - mmc_get_cover_state that uses OMAP_MPUIO(1)
  52  * - mmc_get_wp that uses OMAP_MPUIO(3)
  53  */
  54 static struct omap_mmc_platform_data mmc1_data = {
  55         .nr_slots                       = 1,
  56         .init                           = mmc_late_init,
  57         .cleanup                        = mmc_cleanup,
  58         .dma_mask                       = 0xffffffff,
  59         .slots[0]       = {
  60                 .set_power              = mmc_set_power,
  61                 .ocr_mask               = MMC_VDD_28_29 | MMC_VDD_30_31 |
  62                                           MMC_VDD_32_33 | MMC_VDD_33_34,
  63                 .name                   = "mmcblk",
  64         },
  65 };
  66
  67 static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
  68
  69 void __init h2_mmc_init(void)
  70 {
  71         mmc_data[0] = &mmc1_data;
  72         omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
  73 }
  74
  75 #else
  76
  77 void __init h2_mmc_init(void)
  78 {
  79 }
  80
  81 #endif