Blame view

kernel/linux-rt-4.4.41/include/linux/atmel-mci.h 1.31 KB
5113f6f70   김현기   kernel add
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
  #ifndef __LINUX_ATMEL_MCI_H
  #define __LINUX_ATMEL_MCI_H
  
  #include <linux/types.h>
  
  #define ATMCI_MAX_NR_SLOTS	2
  
  /**
   * struct mci_slot_pdata - board-specific per-slot configuration
   * @bus_width: Number of data lines wired up the slot
   * @detect_pin: GPIO pin wired to the card detect switch
   * @wp_pin: GPIO pin wired to the write protect sensor
   * @detect_is_active_high: The state of the detect pin when it is active
   * @non_removable: The slot is not removable, only detect once
   *
   * If a given slot is not present on the board, @bus_width should be
   * set to 0. The other fields are ignored in this case.
   *
   * Any pins that aren't available should be set to a negative value.
   *
   * Note that support for multiple slots is experimental -- some cards
   * might get upset if we don't get the clock management exactly right.
   * But in most cases, it should work just fine.
   */
  struct mci_slot_pdata {
  	unsigned int		bus_width;
  	int			detect_pin;
  	int			wp_pin;
  	bool			detect_is_active_high;
  	bool			non_removable;
  };
  
  /**
   * struct mci_platform_data - board-specific MMC/SDcard configuration
   * @dma_slave: DMA slave interface to use in data transfers.
   * @slot: Per-slot configuration data.
   */
  struct mci_platform_data {
  	struct mci_dma_data	*dma_slave;
  	struct mci_slot_pdata	slot[ATMCI_MAX_NR_SLOTS];
  };
  
  #endif /* __LINUX_ATMEL_MCI_H */