1 #ifndef ASMARM_ARCH_MMC_H
2 #define ASMARM_ARCH_MMC_H
3 
4 #include <linux/mmc/host.h>
5 
6 struct device;
7 
8 /* board specific SDHC data, optional.
9  * If not present, a writable card with 3,3V is assumed.
10  */
11 struct imxmmc_platform_data {
12 	/* Return values for the get_ro callback should be:
13 	 *   0 for a read/write card
14 	 *   1 for a read-only card
15 	 *   -ENOSYS when not supported (equal to NULL callback)
16 	 *   or a negative errno value when something bad happened
17 	 */
18 	int (*get_ro)(struct device *);
19 
20 	/* board specific hook to (de)initialize the SD slot.
21 	 * The board code can call 'handler' on a card detection
22 	 * change giving data as argument.
23 	 */
24 	int (*init)(struct device *dev, irq_handler_t handler, void *data);
25 	void (*exit)(struct device *dev, void *data);
26 
27 	/* available voltages. If not given, assume
28 	 * MMC_VDD_32_33 | MMC_VDD_33_34
29 	 */
30 	unsigned int ocr_avail;
31 
32 	/* adjust slot voltage */
33 	void (*setpower)(struct device *, unsigned int vdd);
34 
35 	/* enable card detect using DAT3 */
36 	int dat3_card_detect;
37 };
38 
39 #endif
40