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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-07 11:58:30 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-07 11:58:30 -0800
commit08249903ea233a79b4167395f2fb79ccd1fb5f94 (patch)
tree13285b46a495b578f721bb83024dae579466e089 /include
parent0d6326a100d7aec588d7c1da9ad77ca7cc7c5b71 (diff)
parent183b3af66eb71b5337be10d82dd177a8e3f414e1 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: Move syscalls.h under arch/avr32/include/asm/ avr32: Define DIE_OOPS avr32: Remove DMATEST from defconfigs arch/avr32: Eliminate NULL test and memset after alloc_bootmem avr32: data param to at32_add_device_mci() must be non-NULL atmel-mci: move atmel-mci.h file to include/linux avr32: Hammerhead board support avr32: Allow reserving multiple pins at once favr-32: Remove deprecated call MIMC200: Remove deprecated call avr: struct device - replace bus_id with dev_name(), dev_set_name() avr32: Introducing asm/syscalls.h
Diffstat (limited to 'include')
-rw-r--r--include/linux/atmel-mci.h39
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 */