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
8struct device;
9
10/* board specific SDHC data, optional.
11 * If not present, a writable card with 3,3V is assumed.
12 */
13struct 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