mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 22:24:09 +08:00
76d5556428
Add support for non-removable slots which have no card detection GPIO and which should not be polled for a card change. Signed-off-by: Timo Kokkonen <timo.kokkonen@offcode.fi> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
#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 */
|