1 #ifndef __LINUX_ATMEL_MCI_H
2 #define __LINUX_ATMEL_MCI_H
3 
4 #include <linux/types.h>
5 
6 #define ATMCI_MAX_NR_SLOTS	2
7 
8 /**
9  * struct mci_slot_pdata - board-specific per-slot configuration
10  * @bus_width: Number of data lines wired up the slot
11  * @detect_pin: GPIO pin wired to the card detect switch
12  * @wp_pin: GPIO pin wired to the write protect sensor
13  * @detect_is_active_high: The state of the detect pin when it is active
14  * @non_removable: The slot is not removable, only detect once
15  *
16  * If a given slot is not present on the board, @bus_width should be
17  * set to 0. The other fields are ignored in this case.
18  *
19  * Any pins that aren't available should be set to a negative value.
20  *
21  * Note that support for multiple slots is experimental -- some cards
22  * might get upset if we don't get the clock management exactly right.
23  * But in most cases, it should work just fine.
24  */
25 struct mci_slot_pdata {
26 	unsigned int		bus_width;
27 	int			detect_pin;
28 	int			wp_pin;
29 	bool			detect_is_active_high;
30 	bool			non_removable;
31 };
32 
33 /**
34  * struct mci_platform_data - board-specific MMC/SDcard configuration
35  * @dma_slave: DMA slave interface to use in data transfers.
36  * @slot: Per-slot configuration data.
37  */
38 struct mci_platform_data {
39 	struct mci_dma_data	*dma_slave;
40 	struct mci_slot_pdata	slot[ATMCI_MAX_NR_SLOTS];
41 };
42 
43 #endif /* __LINUX_ATMEL_MCI_H */
44