1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef ASMARM_ARCH_MMC_H
3 #define ASMARM_ARCH_MMC_H
4 
5 #include <linux/interrupt.h>
6 #include <linux/mmc/host.h>
7 
8 struct device;
9 
10 /* board specific SDHC data, optional.
11  * If not present, a writable card with 3,3V is assumed.
12  */
13 struct imxmmc_platform_data {
14 	/* Return values for the get_ro callback should be:
15 	 *   0 for a read/write card
16 	 *   1 for a read-only card
17 	 *   -ENOSYS when not supported (equal to NULL callback)
18 	 *   or a negative errno value when something bad happened
19 	 */
20 	int (*get_ro)(struct device *);
21 
22 	/* board specific hook to (de)initialize the SD slot.
23 	 * The board code can call 'handler' on a card detection
24 	 * change giving data as argument.
25 	 */
26 	int (*init)(struct device *dev, irq_handler_t handler, void *data);
27 	void (*exit)(struct device *dev, void *data);
28 
29 	/* available voltages. If not given, assume
30 	 * MMC_VDD_32_33 | MMC_VDD_33_34
31 	 */
32 	unsigned int ocr_avail;
33 
34 	/* adjust slot voltage */
35 	void (*setpower)(struct device *, unsigned int vdd);
36 
37 	/* enable card detect using DAT3 */
38 	int dat3_card_detect;
39 };
40 
41 #endif
42