arch/arm/plat-omap/include/mach/mmc.h

   1 /*
   2  * MMC definitions for OMAP2
   3  *
   4  * Copyright (C) 2006 Nokia Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __OMAP2_MMC_H
  12 #define __OMAP2_MMC_H
  13
  14 #include <linux/types.h>
  15 #include <linux/device.h>
  16 #include <linux/mmc/host.h>
  17
  18 #include <mach/board.h>
  19
  20 #define OMAP15XX_NR_MMC         1
  21 #define OMAP16XX_NR_MMC         2
  22 #define OMAP1_MMC_SIZE          0x080
  23 #define OMAP1_MMC1_BASE         0xfffb7800
  24 #define OMAP1_MMC2_BASE         0xfffb7c00      /* omap16xx only */
  25
  26 #define OMAP24XX_NR_MMC         2
  27 #define OMAP34XX_NR_MMC         3
  28 #define OMAP2420_MMC_SIZE       OMAP1_MMC_SIZE
  29 #define HSMMC_SIZE              0x200
  30 #define OMAP2_MMC1_BASE         0x4809c000
  31 #define OMAP2_MMC2_BASE         0x480b4000
  32 #define OMAP3_MMC3_BASE         0x480ad000
  33 #define HSMMC3                  (1 << 2)
  34 #define HSMMC2                  (1 << 1)
  35 #define HSMMC1                  (1 << 0)
  36
  37 #define OMAP_MMC_MAX_SLOTS      2
  38
  39 struct omap_mmc_platform_data {
  40
  41         /* number of slots per controller */
  42         unsigned nr_slots:2;
  43
  44         /* set if your board has components or wiring that limits the
  45          * maximum frequency on the MMC bus */
  46         unsigned int max_freq;
  47
  48         /* switch the bus to a new slot */
  49         int (* switch_slot)(struct device *dev, int slot);
  50         /* initialize board-specific MMC functionality, can be NULL if
  51          * not supported */
  52         int (* init)(struct device *dev);
  53         void (* cleanup)(struct device *dev);
  54         void (* shutdown)(struct device *dev);
  55
  56         /* To handle board related suspend/resume functionality for MMC */
  57         int (*suspend)(struct device *dev, int slot);
  58         int (*resume)(struct device *dev, int slot);
  59
  60         u64 dma_mask;
  61
  62         struct omap_mmc_slot_data {
  63
  64                 /* 4 wire signaling is optional, and is used for SD/SDIO/HSMMC;
  65                  * 8 wire signaling is also optional, and is used with HSMMC
  66                  */
  67                 u8 wires;
  68
  69                 /*
  70                  * nomux means "standard" muxing is wrong on this board, and
  71                  * that board-specific code handled it before common init logic.
  72                  */
  73                 unsigned nomux:1;
  74
  75                 /* switch pin can be for card detect (default) or card cover */
  76                 unsigned cover:1;
  77
  78                 /* use the internal clock */
  79                 unsigned internal_clock:1;
  80                 s16 power_pin;
  81
  82                 int switch_pin;                 /* gpio (card detect) */
  83                 int gpio_wp;                    /* gpio (write protect) */
  84
  85                 int (* set_bus_mode)(struct device *dev, int slot, int bus_mode);
  86                 int (* set_power)(struct device *dev, int slot, int power_on, int vdd);
  87                 int (* get_ro)(struct device *dev, int slot);
  88
  89                 /* return MMC cover switch state, can be NULL if not supported.
  90                  *
  91                  * possible return values:
  92                  *   0 - closed
  93                  *   1 - open
  94                  */
  95                 int (* get_cover_state)(struct device *dev, int slot);
  96
  97                 const char *name;
  98                 u32 ocr_mask;
  99
 100                 /* Card detection IRQs */
 101                 int card_detect_irq;
 102                 int (* card_detect)(int irq);
 103
 104                 unsigned int ban_openended:1;
 105
 106         } slots[OMAP_MMC_MAX_SLOTS];
 107 };
 108
 109 /* called from board-specific card detection service routine */
 110 extern void omap_mmc_notify_cover_event(struct device *dev, int slot, int is_closed);
 111
 112 #if     defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
 113         defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
 114 void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
 115                                 int nr_controllers);
 116 void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
 117                                 int nr_controllers);
 118 int omap_mmc_add(int id, unsigned long base, unsigned long size,
 119                         unsigned int irq, struct omap_mmc_platform_data *data);
 120 #else
 121 static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
 122                                 int nr_controllers)
 123 {
 124 }
 125 static inline void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
 126                                 int nr_controllers)
 127 {
 128 }
 129 static inline int omap_mmc_add(int id, unsigned long base, unsigned long size,
 130                 unsigned int irq, struct omap_mmc_platform_data *data)
 131 {
 132         return 0;
 133 }
 134
 135 #endif
 136 #endif