mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 16:38:31 +00:00
16b3bf8c85
Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
#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
|