diff options
Diffstat (limited to 'kernel/include/linux/platform_data/mmc-mxcmmc.h')
| -rw-r--r-- | kernel/include/linux/platform_data/mmc-mxcmmc.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/kernel/include/linux/platform_data/mmc-mxcmmc.h b/kernel/include/linux/platform_data/mmc-mxcmmc.h new file mode 100644 index 000000000..29115f405 --- /dev/null +++ b/kernel/include/linux/platform_data/mmc-mxcmmc.h @@ -0,0 +1,39 @@ +#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 |