[mirror_ubuntu-artful-kernel.git] / include / linux / atmel-mci.h

#ifndef __LINUX_ATMEL_MCI_H
#define __LINUX_ATMEL_MCI_H

#define ATMEL_MCI_MAX_NR_SLOTS	2

#include <linux/dw_dmac.h>

/**
 * 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
 * @detect_is_active_high: The state of the detect pin when it is active
 *
 * 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;
	bool			detect_is_active_high;
};

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

#endif /* __LINUX_ATMEL_MCI_H */
Commit	Line	Data
c42aa775 NF	1	#ifndef __LINUX_ATMEL_MCI_H
c42aa775 NF	2	#define __LINUX_ATMEL_MCI_H
7d2be074	3
965ebf33 HS	4	#define ATMEL_MCI_MAX_NR_SLOTS 2
965ebf33 HS	5
74465b4f	6	#include <linux/dw_dmac.h>
65e8b083	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
1c1452be	13	* @detect_is_active_high: The state of the detect pin when it is active
6b918657 HS	14	*
	15	* If a given slot is not present on the board, @bus_width should be
	16	* set to 0. The other fields are ignored in this case.
	17	*
	18	* Any pins that aren't available should be set to a negative value.
965ebf33 HS	19	*
	20	* Note that support for multiple slots is experimental -- some cards
	21	* might get upset if we don't get the clock management exactly right.
	22	* But in most cases, it should work just fine.
6b918657 HS	23	*/
	24	struct mci_slot_pdata {
	25	unsigned int bus_width;
7d2be074 HS	26	int detect_pin;
7d2be074 HS	27	int wp_pin;
1c1452be	28	bool detect_is_active_high;
7d2be074 HS	29	};
7d2be074 HS	30
6b918657 HS	31	/**
6b918657 HS	32	* struct mci_platform_data - board-specific MMC/SDcard configuration
74465b4f	33	* @dma_slave: DMA slave interface to use in data transfers.
6b918657 HS	34	* @slot: Per-slot configuration data.
	35	*/
	36	struct mci_platform_data {
74465b4f	37	struct dw_dma_slave dma_slave;
965ebf33	38	struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS];
6b918657 HS	39	};
6b918657 HS	40
c42aa775	41	#endif /* __LINUX_ATMEL_MCI_H */