1 #ifndef __LINUX_ATMEL_MCI_H 2 #define __LINUX_ATMEL_MCI_H 3 4 #include <linux/types.h> 5 #include <linux/dmaengine.h> 6 7 #define ATMCI_MAX_NR_SLOTS 2 8 9 /** 10 * struct mci_slot_pdata - board-specific per-slot configuration 11 * @bus_width: Number of data lines wired up the slot 12 * @detect_pin: GPIO pin wired to the card detect switch 13 * @wp_pin: GPIO pin wired to the write protect sensor 14 * @detect_is_active_high: The state of the detect pin when it is active 15 * @non_removable: The slot is not removable, only detect once 16 * 17 * If a given slot is not present on the board, @bus_width should be 18 * set to 0. The other fields are ignored in this case. 19 * 20 * Any pins that aren't available should be set to a negative value. 21 * 22 * Note that support for multiple slots is experimental -- some cards 23 * might get upset if we don't get the clock management exactly right. 24 * But in most cases, it should work just fine. 25 */ 26 struct mci_slot_pdata { 27 unsigned int bus_width; 28 int detect_pin; 29 int wp_pin; 30 bool detect_is_active_high; 31 bool non_removable; 32 }; 33 34 /** 35 * struct mci_platform_data - board-specific MMC/SDcard configuration 36 * @dma_slave: DMA slave interface to use in data transfers. 37 * @slot: Per-slot configuration data. 38 */ 39 struct mci_platform_data { 40 struct mci_dma_data *dma_slave; 41 dma_filter_fn dma_filter; 42 struct mci_slot_pdata slot[ATMCI_MAX_NR_SLOTS]; 43 }; 44 45 #endif /* __LINUX_ATMEL_MCI_H */ 46