release/src-rt-6.x.4708/linux/linux-2.6.36/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
  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-h3.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(H3_TPS_GPIO_MMC_PWR_EN, power_on);
  30         return 0;
  31 }
  32
  33 /*
  34  * H3 could use the following functions tested:
  35  * - mmc_get_cover_state that uses OMAP_MPUIO(1)
  36  * - mmc_get_wp that maybe uses OMAP_MPUIO(3)
  37  */
  38 static struct omap_mmc_platform_data mmc1_data = {
  39         .nr_slots                       = 1,
  40         .dma_mask                       = 0xffffffff,
  41         .slots[0]       = {
  42                 .set_power              = mmc_set_power,
  43                 .ocr_mask               = MMC_VDD_28_29 | MMC_VDD_30_31 |
  44                                           MMC_VDD_32_33 | MMC_VDD_33_34,
  45                 .name                   = "mmcblk",
  46         },
  47 };
  48
  49 static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
  50
  51 void __init h3_mmc_init(void)
  52 {
  53         int ret;
  54
  55         ret = gpio_request(H3_TPS_GPIO_MMC_PWR_EN, "MMC power");
  56         if (ret < 0)
  57                 return;
  58         gpio_direction_output(H3_TPS_GPIO_MMC_PWR_EN, 0);
  59
  60         mmc_data[0] = &mmc1_data;
  61         omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
  62 }
  63
  64 #else
  65
  66 void __init h3_mmc_init(void)
  67 {
  68 }
  69
  70 #endif