arch/arm/mach-omap2/board-apollon-mmc.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-apollon-mmc.c
   3  *
   4  * Copyright (C) 2005-2007 Samsung Electronics
   5  * Author: Kyungmin Park <kyungmin.park@samsung.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/kernel.h>
  13
  14 #include <asm/arch/gpio.h>
  15 #include <asm/arch/mmc.h>
  16
  17 #ifdef CONFIG_MMC_OMAP
  18
  19 static struct device *mmc_device;
  20
  21 static int apollon_mmc_set_power(struct device *dev, int slot, int power_on,
  22                                         int vdd)
  23 {
  24 #ifdef CONFIG_MMC_DEBUG
  25         dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
  26                 power_on ? "on" : "off", vdd);
  27 #endif
  28         if (slot != 0) {
  29                 dev_err(dev, "No such slot %d\n", slot + 1);
  30                 return -ENODEV;
  31         }
  32
  33         return 0;
  34 }
  35
  36 static int apollon_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
  37 {
  38 #ifdef CONFIG_MMC_DEBUG
  39         dev_dbg(dev, "Set slot %d bus_mode %s\n", slot + 1,
  40                 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
  41 #endif
  42         if (slot != 0) {
  43                 dev_err(dev, "No such slot %d\n", slot + 1);
  44                 return -ENODEV;
  45         }
  46
  47         return 0;
  48 }
  49
  50 static int apollon_mmc_late_init(struct device *dev)
  51 {
  52         mmc_device = dev;
  53
  54         return 0;
  55 }
  56
  57 static void apollon_mmc_cleanup(struct device *dev)
  58 {
  59 }
  60
  61 static struct omap_mmc_platform_data apollon_mmc_data = {
  62         .nr_slots                       = 1,
  63         .switch_slot                    = NULL,
  64         .init                           = apollon_mmc_late_init,
  65         .cleanup                        = apollon_mmc_cleanup,
  66         .slots[0]       = {
  67                 .set_power              = apollon_mmc_set_power,
  68                 .set_bus_mode           = apollon_mmc_set_bus_mode,
  69                 .get_ro                 = NULL,
  70                 .get_cover_state        = NULL,
  71                 .ocr_mask               = MMC_VDD_30_31 | MMC_VDD_31_32 |
  72                                           MMC_VDD_32_33 | MMC_VDD_33_34,
  73                 .name                   = "mmcblk",
  74         },
  75 };
  76
  77 void __init apollon_mmc_init(void)
  78 {
  79         omap_set_mmc_info(1, &apollon_mmc_data);
  80 }
  81
  82 #else   /* !CONFIG_MMC_OMAP */
  83
  84 void __init apollon_mmc_init(void)
  85 {
  86 }
  87
  88 #endif  /* CONFIG_MMC_OMAP */