[mirror_ubuntu-zesty-kernel.git] / arch / avr32 / include / asm / atmel-mci.h

#ifndef __ASM_AVR32_ATMEL_MCI_H
#define __ASM_AVR32_ATMEL_MCI_H

#define ATMEL_MCI_MAX_NR_SLOTS	2

struct dma_slave;

/**
 * struct mci_slot_pdata - board-specific per-slot configuration
 * @bus_width: Number of data lines wired up the slot
 * @detect_pin: GPIO pin wired to the card detect switch
 * @wp_pin: GPIO pin wired to the write protect sensor
 *
 * If a given slot is not present on the board, @bus_width should be
 * set to 0. The other fields are ignored in this case.
 *
 * Any pins that aren't available should be set to a negative value.
 *
 * Note that support for multiple slots is experimental -- some cards
 * might get upset if we don't get the clock management exactly right.
 * But in most cases, it should work just fine.
 */
struct mci_slot_pdata {
	unsigned int		bus_width;
	int			detect_pin;
	int			wp_pin;
};

/**
 * struct mci_platform_data - board-specific MMC/SDcard configuration
 * @dma_slave: DMA slave interface to use in data transfers, or NULL.
 * @slot: Per-slot configuration data.
 */
struct mci_platform_data {
	struct dma_slave	*dma_slave;
	struct mci_slot_pdata	slot[ATMEL_MCI_MAX_NR_SLOTS];
};

#endif /* __ASM_AVR32_ATMEL_MCI_H */
Commit	Line	Data
7d2be074 HS	1	#ifndef __ASM_AVR32_ATMEL_MCI_H
	2	#define __ASM_AVR32_ATMEL_MCI_H
	3
965ebf33 HS	4	#define ATMEL_MCI_MAX_NR_SLOTS 2
965ebf33 HS	5
65e8b083 HS	6	struct dma_slave;
65e8b083 HS	7
6b918657 HS	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	*
	14	* If a given slot is not present on the board, @bus_width should be
	15	* set to 0. The other fields are ignored in this case.
	16	*
	17	* Any pins that aren't available should be set to a negative value.
965ebf33 HS	18	*
	19	* Note that support for multiple slots is experimental -- some cards
	20	* might get upset if we don't get the clock management exactly right.
	21	* But in most cases, it should work just fine.
6b918657 HS	22	*/
	23	struct mci_slot_pdata {
	24	unsigned int bus_width;
7d2be074 HS	25	int detect_pin;
	26	int wp_pin;
	27	};
	28
6b918657 HS	29	/**
6b918657 HS	30	* struct mci_platform_data - board-specific MMC/SDcard configuration
65e8b083	31	* @dma_slave: DMA slave interface to use in data transfers, or NULL.
6b918657 HS	32	* @slot: Per-slot configuration data.
	33	*/
	34	struct mci_platform_data {
65e8b083	35	struct dma_slave *dma_slave;
965ebf33	36	struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS];
6b918657 HS	37	};
6b918657 HS	38
7d2be074	39	#endif /* __ASM_AVR32_ATMEL_MCI_H */