arch/arm/mach-omap1/board-h3-mmc.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-h3-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 "common.h"
  20 #include "board-h3.h"
  21 #include "mmc.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(H3_TPS_GPIO_MMC_PWR_EN, power_on);
  29         return 0;
  30 }
  31
  32 /*
  33  * H3 could use the following functions tested:
  34  * - mmc_get_cover_state that uses OMAP_MPUIO(1)
  35  * - mmc_get_wp that maybe uses OMAP_MPUIO(3)
  36  */
  37 static struct omap_mmc_platform_data mmc1_data = {
  38         .nr_slots                       = 1,
  39         .slots[0]       = {
  40                 .set_power              = mmc_set_power,
  41                 .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  42                 .name                   = "mmcblk",
  43         },
  44 };
  45
  46 static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
  47
  48 void __init h3_mmc_init(void)
  49 {
  50         int ret;
  51
  52         ret = gpio_request(H3_TPS_GPIO_MMC_PWR_EN, "MMC power");
  53         if (ret < 0)
  54                 return;
  55         gpio_direction_output(H3_TPS_GPIO_MMC_PWR_EN, 0);
  56
  57         mmc_data[0] = &mmc1_data;
  58         omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
  59 }
  60
  61 #else
  62
  63 void __init h3_mmc_init(void)
  64 {
  65 }
  66
  67 #endif