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Nicolas Ferrec42aa772008-11-20 15:59:12 +01001#ifndef __LINUX_ATMEL_MCI_H
2#define __LINUX_ATMEL_MCI_H
Haavard Skinnemoen7d2be072008-06-30 18:35:03 +02003
Haavard Skinnemoen965ebf32008-09-17 20:53:55 +02004#define ATMEL_MCI_MAX_NR_SLOTS 2
5
Dan Williams74465b42009-01-06 11:38:16 -07006#include <linux/dw_dmac.h>
Haavard Skinnemoen65e8b082008-07-30 20:29:03 +02007
Haavard Skinnemoen6b918652008-08-07 14:08:49 +02008/**
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.
Haavard Skinnemoen965ebf32008-09-17 20:53:55 +020018 *
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.
Haavard Skinnemoen6b918652008-08-07 14:08:49 +020022 */
23struct mci_slot_pdata {
24 unsigned int bus_width;
Haavard Skinnemoen7d2be072008-06-30 18:35:03 +020025 int detect_pin;
26 int wp_pin;
27};
28
Haavard Skinnemoen6b918652008-08-07 14:08:49 +020029/**
30 * struct mci_platform_data - board-specific MMC/SDcard configuration
Dan Williams74465b42009-01-06 11:38:16 -070031 * @dma_slave: DMA slave interface to use in data transfers.
Haavard Skinnemoen6b918652008-08-07 14:08:49 +020032 * @slot: Per-slot configuration data.
33 */
34struct mci_platform_data {
Dan Williams74465b42009-01-06 11:38:16 -070035 struct dw_dma_slave dma_slave;
Haavard Skinnemoen965ebf32008-09-17 20:53:55 +020036 struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS];
Haavard Skinnemoen6b918652008-08-07 14:08:49 +020037};
38
Nicolas Ferrec42aa772008-11-20 15:59:12 +010039#endif /* __LINUX_ATMEL_MCI_H */