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mmc: add module parameter to set whether cards are assumed removable
[mirror_ubuntu-artful-kernel.git] / include / linux / atmel-mci.h
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1#ifndef __LINUX_ATMEL_MCI_H
2#define __LINUX_ATMEL_MCI_H
7d2be074 3
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4#define ATMEL_MCI_MAX_NR_SLOTS 2
5
74465b4f 6#include <linux/dw_dmac.h>
65e8b083 7
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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
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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.
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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.
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23 */
24struct mci_slot_pdata {
25 unsigned int bus_width;
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26 int detect_pin;
27 int wp_pin;
1c1452be 28 bool detect_is_active_high;
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29};
30
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31/**
32 * struct mci_platform_data - board-specific MMC/SDcard configuration
74465b4f 33 * @dma_slave: DMA slave interface to use in data transfers.
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34 * @slot: Per-slot configuration data.
35 */
36struct mci_platform_data {
74465b4f 37 struct dw_dma_slave dma_slave;
965ebf33 38 struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS];
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39};
40
c42aa775 41#endif /* __LINUX_ATMEL_MCI_H */