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mmc.h

/*
 * MMC definitions for OMAP2
 *
 * Copyright (C) 2006 Nokia Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef __OMAP2_MMC_H
#define __OMAP2_MMC_H

#include <linux/types.h>
#include <linux/device.h>
#include <linux/mmc/host.h>

#include <mach/board.h>

#define OMAP15XX_NR_MMC       1
#define OMAP16XX_NR_MMC       2
#define OMAP1_MMC_SIZE        0x080
#define OMAP1_MMC1_BASE       0xfffb7800
#define OMAP1_MMC2_BASE       0xfffb7c00  /* omap16xx only */

#define OMAP24XX_NR_MMC       2
#define OMAP34XX_NR_MMC       3
#define OMAP44XX_NR_MMC       5
#define OMAP2420_MMC_SIZE     OMAP1_MMC_SIZE
#define OMAP3_HSMMC_SIZE      0x200
#define OMAP4_HSMMC_SIZE      0x1000
#define OMAP2_MMC1_BASE       0x4809c000
#define OMAP2_MMC2_BASE       0x480b4000
#define OMAP3_MMC3_BASE       0x480ad000
#define OMAP4_MMC4_BASE       0x480d1000
#define OMAP4_MMC5_BASE       0x480d5000
#define OMAP4_MMC_REG_OFFSET  0x100
#define HSMMC5                (1 << 4)
#define HSMMC4                (1 << 3)
#define HSMMC3                (1 << 2)
#define HSMMC2                (1 << 1)
#define HSMMC1                (1 << 0)

#define OMAP_MMC_MAX_SLOTS    2

00046 struct omap_mmc_platform_data {
      /* back-link to device */
      struct device *dev;

      /* number of slots per controller */
      unsigned nr_slots:2;

      /* set if your board has components or wiring that limits the
       * maximum frequency on the MMC bus */
      unsigned int max_freq;

      /* switch the bus to a new slot */
      int (* switch_slot)(struct device *dev, int slot);
      /* initialize board-specific MMC functionality, can be NULL if
       * not supported */
      int (* init)(struct device *dev);
      void (* cleanup)(struct device *dev);
      void (* shutdown)(struct device *dev);

      /* To handle board related suspend/resume functionality for MMC */
      int (*suspend)(struct device *dev, int slot);
      int (*resume)(struct device *dev, int slot);

      /* Return context loss count due to PM states changing */
      int (*get_context_loss_count)(struct device *dev);

      u64 dma_mask;

00074       struct omap_mmc_slot_data {

            /* 4 wire signaling is optional, and is used for SD/SDIO/HSMMC;
             * 8 wire signaling is also optional, and is used with HSMMC
             */
            u8 wires;

            /*
             * nomux means "standard" muxing is wrong on this board, and
             * that board-specific code handled it before common init logic.
             */
            unsigned nomux:1;

            /* switch pin can be for card detect (default) or card cover */
            unsigned cover:1;

            /* use the internal clock */
            unsigned internal_clock:1;

            /* nonremovable e.g. eMMC */
            unsigned nonremovable:1;

            /* Try to sleep or power off when possible */
            unsigned power_saving:1;

            int switch_pin;               /* gpio (card detect) */
            int gpio_wp;                  /* gpio (write protect) */

            int (* set_bus_mode)(struct device *dev, int slot, int bus_mode);
            int (* set_power)(struct device *dev, int slot, int power_on, int vdd);
            int (* get_ro)(struct device *dev, int slot);
            int (*set_sleep)(struct device *dev, int slot, int sleep,
                         int vdd, int cardsleep);

            /* return MMC cover switch state, can be NULL if not supported.
             *
             * possible return values:
             *   0 - closed
             *   1 - open
             */
            int (* get_cover_state)(struct device *dev, int slot);

            const char *name;
            u32 ocr_mask;

            /* Card detection IRQs */
            int card_detect_irq;
            int (* card_detect)(int irq);

            unsigned int ban_openended:1;

      } slots[OMAP_MMC_MAX_SLOTS];
};

/* called from board-specific card detection service routine */
extern void omap_mmc_notify_cover_event(struct device *dev, int slot, int is_closed);

#if   defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
      defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
                        int nr_controllers);
void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
                        int nr_controllers);
int omap_mmc_add(const char *name, int id, unsigned long base,
                        unsigned long size, unsigned int irq,
                        struct omap_mmc_platform_data *data);
#else
static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
                        int nr_controllers)
{
}
static inline void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
                        int nr_controllers)
{
}
static inline int omap_mmc_add(const char *name, int id, unsigned long base,
                        unsigned long size, unsigned int irq,
                        struct omap_mmc_platform_data *data)
{
      return 0;
}

#endif
#endif

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