Linux 2.6.33-rc2
[pohmelfs.git] / include / linux / atmel-mci.h
blob3e09b345f4d675ffddcab95e6d6b72039d141237
1 #ifndef __LINUX_ATMEL_MCI_H
2 #define __LINUX_ATMEL_MCI_H
4 #define ATMEL_MCI_MAX_NR_SLOTS 2
6 /**
7 * struct mci_slot_pdata - board-specific per-slot configuration
8 * @bus_width: Number of data lines wired up the slot
9 * @detect_pin: GPIO pin wired to the card detect switch
10 * @wp_pin: GPIO pin wired to the write protect sensor
11 * @detect_is_active_high: The state of the detect pin when it is active
13 * If a given slot is not present on the board, @bus_width should be
14 * set to 0. The other fields are ignored in this case.
16 * Any pins that aren't available should be set to a negative value.
18 * Note that support for multiple slots is experimental -- some cards
19 * might get upset if we don't get the clock management exactly right.
20 * But in most cases, it should work just fine.
22 struct mci_slot_pdata {
23 unsigned int bus_width;
24 int detect_pin;
25 int wp_pin;
26 bool detect_is_active_high;
29 /**
30 * struct mci_platform_data - board-specific MMC/SDcard configuration
31 * @dma_slave: DMA slave interface to use in data transfers.
32 * @slot: Per-slot configuration data.
34 struct mci_platform_data {
35 struct mci_dma_data *dma_slave;
36 struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS];
39 #endif /* __LINUX_ATMEL_MCI_H */