diff options
author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2008-11-20 15:59:12 +0100 |
---|---|---|
committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2009-01-05 16:35:31 +0100 |
commit | c42aa775cc8a8ca558db0cc75979fb8e16667447 (patch) | |
tree | 9f340ed1edf38422a2de31c103bebcccae7a4739 /include/linux | |
parent | 4a6908a3a050aacc9c3a2f36b276b46c0629ad91 (diff) |
atmel-mci: move atmel-mci.h file to include/linux
Needed to use the atmel-mci driver in an architecture
independant maner.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/atmel-mci.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h new file mode 100644 index 00000000000..2a2213eefd8 --- /dev/null +++ b/include/linux/atmel-mci.h @@ -0,0 +1,39 @@ +#ifndef __LINUX_ATMEL_MCI_H +#define __LINUX_ATMEL_MCI_H + +#define ATMEL_MCI_MAX_NR_SLOTS 2 + +struct dma_slave; + +/** + * 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 + * + * 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; +}; + +/** + * struct mci_platform_data - board-specific MMC/SDcard configuration + * @dma_slave: DMA slave interface to use in data transfers, or NULL. + * @slot: Per-slot configuration data. + */ +struct mci_platform_data { + struct dma_slave *dma_slave; + struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS]; +}; + +#endif /* __LINUX_ATMEL_MCI_H */ |