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 <asm/arch/mmc.h>
  16 #include <asm/arch/gpio.h>
  17
  18 #ifdef CONFIG_MMC_OMAP
  19 static int slot_cover_open;
  20 static struct device *mmc_device;
  21
  22 static int h3_mmc_set_power(struct device *dev, int slot, int power_on,
  23                                 int vdd)
  24 {
  25 #ifdef CONFIG_MMC_DEBUG
  26         dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
  27                 power_on ? "on" : "off", vdd);
  28 #endif
  29         if (slot != 0) {
  30                 dev_err(dev, "No such slot %d\n", slot + 1);
  31                 return -ENODEV;
  32         }
  33
  34         return 0;
  35 }
  36
  37 static int h3_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
  38 {
  39         int ret = 0;
  40
  41 #ifdef CONFIG_MMC_DEBUG
  42         dev_dbg(dev, "Set slot %d bus_mode %s\n", slot + 1,
  43                 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
  44 #endif
  45         if (slot != 0) {
  46                 dev_err(dev, "No such slot %d\n", slot + 1);
  47                 return -ENODEV;
  48         }
  49
  50         /* Treated on upper level */
  51
  52         return bus_mode;
  53 }
  54
  55 static int h3_mmc_get_cover_state(struct device *dev, int slot)
  56 {
  57         BUG_ON(slot != 0);
  58
  59         return slot_cover_open;
  60 }
  61
  62 void h3_mmc_slot_cover_handler(void *arg, int state)
  63 {
  64         if (mmc_device == NULL)
  65                 return;
  66
  67         slot_cover_open = state;
  68         omap_mmc_notify_cover_event(mmc_device, 0, state);
  69 }
  70
  71 static int h3_mmc_late_init(struct device *dev)
  72 {
  73         int ret = 0;
  74
  75         mmc_device = dev;
  76
  77         return ret;
  78 }
  79
  80 static void h3_mmc_cleanup(struct device *dev)
  81 {
  82 }
  83
  84 static struct omap_mmc_platform_data h3_mmc_data = {
  85         .nr_slots                       = 1,
  86         .switch_slot                    = NULL,
  87         .init                           = h3_mmc_late_init,
  88         .cleanup                        = h3_mmc_cleanup,
  89         .slots[0]       = {
  90                 .set_power              = h3_mmc_set_power,
  91                 .set_bus_mode           = h3_mmc_set_bus_mode,
  92                 .get_ro                 = NULL,
  93                 .get_cover_state        = h3_mmc_get_cover_state,
  94                 .ocr_mask               = MMC_VDD_28_29 | MMC_VDD_30_31 |
  95                                           MMC_VDD_32_33 | MMC_VDD_33_34,
  96                 .name                   = "mmcblk",
  97         },
  98 };
  99
 100 void __init h3_mmc_init(void)
 101 {
 102         omap_set_mmc_info(1, &h3_mmc_data);
 103 }
 104
 105 #else
 106
 107 void __init h3_mmc_init(void)
 108 {
 109 }
 110
 111 void h3_mmc_slot_cover_handler(void *arg, int state)
 112 {
 113 }
 114 #endif