kernel/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 "board-h3.h"
  20 #include "mmc.h"
  21
  22 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
  23
  24 static int mmc_set_power(struct device *dev, int slot, int power_on,
  25                                 int vdd)
  26 {
  27         gpio_set_value(H3_TPS_GPIO_MMC_PWR_EN, power_on);
  28         return 0;
  29 }
  30
  31 /*
  32  * H3 could use the following functions tested:
  33  * - mmc_get_cover_state that uses OMAP_MPUIO(1)
  34  * - mmc_get_wp that maybe uses OMAP_MPUIO(3)
  35  */
  36 static struct omap_mmc_platform_data mmc1_data = {
  37         .nr_slots                       = 1,
  38         .slots[0]       = {
  39                 .set_power              = mmc_set_power,
  40                 .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  41                 .name                   = "mmcblk",
  42         },
  43 };
  44
  45 static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
  46
  47 void __init h3_mmc_init(void)
  48 {
  49         int ret;
  50
  51         ret = gpio_request(H3_TPS_GPIO_MMC_PWR_EN, "MMC power");
  52         if (ret < 0)
  53                 return;
  54         gpio_direction_output(H3_TPS_GPIO_MMC_PWR_EN, 0);
  55
  56         mmc_data[0] = &mmc1_data;
  57         omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
  58 }
  59
  60 #else
  61
  62 void __init h3_mmc_init(void)
  63 {
  64 }
  65
  66 #endif