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45 lines
1.4 KiB
45 lines
1.4 KiB
#ifndef __LINUX_ATMEL_MCI_H |
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#define __LINUX_ATMEL_MCI_H |
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#include <linux/types.h> |
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#include <linux/dmaengine.h> |
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#define ATMCI_MAX_NR_SLOTS 2 |
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/** |
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* struct mci_slot_pdata - board-specific per-slot configuration |
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* @bus_width: Number of data lines wired up the slot |
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* @detect_pin: GPIO pin wired to the card detect switch |
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* @wp_pin: GPIO pin wired to the write protect sensor |
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* @detect_is_active_high: The state of the detect pin when it is active |
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* @non_removable: The slot is not removable, only detect once |
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* |
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* If a given slot is not present on the board, @bus_width should be |
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* set to 0. The other fields are ignored in this case. |
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* |
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* Any pins that aren't available should be set to a negative value. |
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* |
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* Note that support for multiple slots is experimental -- some cards |
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* might get upset if we don't get the clock management exactly right. |
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* But in most cases, it should work just fine. |
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*/ |
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struct mci_slot_pdata { |
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unsigned int bus_width; |
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int detect_pin; |
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int wp_pin; |
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bool detect_is_active_high; |
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bool non_removable; |
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}; |
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/** |
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* struct mci_platform_data - board-specific MMC/SDcard configuration |
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* @dma_slave: DMA slave interface to use in data transfers. |
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* @slot: Per-slot configuration data. |
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*/ |
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struct mci_platform_data { |
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void *dma_slave; |
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dma_filter_fn dma_filter; |
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struct mci_slot_pdata slot[ATMCI_MAX_NR_SLOTS]; |
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}; |
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#endif /* __LINUX_ATMEL_MCI_H */
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