Nicolas Ferre | c42aa77 | 2008-11-20 15:59:12 +0100 | [diff] [blame] | 1 | #ifndef __LINUX_ATMEL_MCI_H |
| 2 | #define __LINUX_ATMEL_MCI_H |
Haavard Skinnemoen | 7d2be07 | 2008-06-30 18:35:03 +0200 | [diff] [blame] | 3 | |
Haavard Skinnemoen | 965ebf3 | 2008-09-17 20:53:55 +0200 | [diff] [blame] | 4 | #define ATMEL_MCI_MAX_NR_SLOTS 2 |
| 5 | |
Dan Williams | 74465b4 | 2009-01-06 11:38:16 -0700 | [diff] [blame] | 6 | #include <linux/dw_dmac.h> |
Haavard Skinnemoen | 65e8b08 | 2008-07-30 20:29:03 +0200 | [diff] [blame] | 7 | |
Haavard Skinnemoen | 6b91865 | 2008-08-07 14:08:49 +0200 | [diff] [blame] | 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 |
Jonas Larsson | 1c1452b | 2009-03-31 11:16:48 +0200 | [diff] [blame^] | 13 | * @detect_is_active_high: The state of the detect pin when it is active |
Haavard Skinnemoen | 6b91865 | 2008-08-07 14:08:49 +0200 | [diff] [blame] | 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. |
Haavard Skinnemoen | 965ebf3 | 2008-09-17 20:53:55 +0200 | [diff] [blame] | 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. |
Haavard Skinnemoen | 6b91865 | 2008-08-07 14:08:49 +0200 | [diff] [blame] | 23 | */ |
| 24 | struct mci_slot_pdata { |
| 25 | unsigned int bus_width; |
Haavard Skinnemoen | 7d2be07 | 2008-06-30 18:35:03 +0200 | [diff] [blame] | 26 | int detect_pin; |
| 27 | int wp_pin; |
Jonas Larsson | 1c1452b | 2009-03-31 11:16:48 +0200 | [diff] [blame^] | 28 | bool detect_is_active_high; |
Haavard Skinnemoen | 7d2be07 | 2008-06-30 18:35:03 +0200 | [diff] [blame] | 29 | }; |
| 30 | |
Haavard Skinnemoen | 6b91865 | 2008-08-07 14:08:49 +0200 | [diff] [blame] | 31 | /** |
| 32 | * struct mci_platform_data - board-specific MMC/SDcard configuration |
Dan Williams | 74465b4 | 2009-01-06 11:38:16 -0700 | [diff] [blame] | 33 | * @dma_slave: DMA slave interface to use in data transfers. |
Haavard Skinnemoen | 6b91865 | 2008-08-07 14:08:49 +0200 | [diff] [blame] | 34 | * @slot: Per-slot configuration data. |
| 35 | */ |
| 36 | struct mci_platform_data { |
Dan Williams | 74465b4 | 2009-01-06 11:38:16 -0700 | [diff] [blame] | 37 | struct dw_dma_slave dma_slave; |
Haavard Skinnemoen | 965ebf3 | 2008-09-17 20:53:55 +0200 | [diff] [blame] | 38 | struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS]; |
Haavard Skinnemoen | 6b91865 | 2008-08-07 14:08:49 +0200 | [diff] [blame] | 39 | }; |
| 40 | |
Nicolas Ferre | c42aa77 | 2008-11-20 15:59:12 +0100 | [diff] [blame] | 41 | #endif /* __LINUX_ATMEL_MCI_H */ |