tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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 *
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.
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.
23 */
24struct mci_slot_pdata {
25 unsigned int bus_width;
26 int detect_pin;
27 int wp_pin;
28 bool detect_is_active_high;
29};
30
31/**
32 * struct mci_platform_data - board-specific MMC/SDcard configuration
33 * @dma_slave: DMA slave interface to use in data transfers.
34 * @slot: Per-slot configuration data.
35 */
36struct mci_platform_data {
37 struct mci_dma_data *dma_slave;
38 struct mci_slot_pdata slot[ATMCI_MAX_NR_SLOTS];
39};
40
41#endif /* __LINUX_ATMEL_MCI_H */