mmc-mxcmmc.h

Go to the documentation of this file.

#ifndef ASMARM_ARCH_MMC_H
#define ASMARM_ARCH_MMC_H

#include <linux/mmc/host.h>

struct device;

/* board specific SDHC data, optional.
 * If not present, a writable card with 3,3V is assumed.
 */
struct imxmmc_platform_data {
    /* Return values for the get_ro callback should be:
     *   0 for a read/write card
     *   1 for a read-only card
     *   -ENOSYS when not supported (equal to NULL callback)
     *   or a negative errno value when something bad happened
     */
    int (*get_ro)(struct device *);

    /* board specific hook to (de)initialize the SD slot.
     * The board code can call 'handler' on a card detection
     * change giving data as argument.
     */
    int (*init)(struct device *dev, irq_handler_t handler, void *data);
    void (*exit)(struct device *dev, void *data);

    /* available voltages. If not given, assume
     * MMC_VDD_32_33 | MMC_VDD_33_34
     */
    unsigned int ocr_avail;

    /* adjust slot voltage */
    void (*setpower)(struct device *, unsigned int vdd);

    /* enable card detect using DAT3 */
    int dat3_card_detect;
};

#endif