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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2012-02-19 06:14:24 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2012-02-19 06:14:24 +0000
commit6fafeb146e9efd59140ea58cebd7dd38ae9a6379 (patch)
tree7db89ba6a28932514b105d620bba4884ec332ec3 /libdde_linux26/contrib/include/linux/atmel-mci.h
parent38c2c2458e3f4ecb329ff35621806252aac209b9 (diff)
parent8df772b3c665e663f6f9d2a70f9c691590bd3f91 (diff)
Merge branch 'dde' into upstream-merged
Diffstat (limited to 'libdde_linux26/contrib/include/linux/atmel-mci.h')
-rw-r--r--libdde_linux26/contrib/include/linux/atmel-mci.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/libdde_linux26/contrib/include/linux/atmel-mci.h b/libdde_linux26/contrib/include/linux/atmel-mci.h
new file mode 100644
index 00000000..2f1f9573
--- /dev/null
+++ b/libdde_linux26/contrib/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
+
+#include <linux/dw_dmac.h>
+
+/**
+ * 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.
+ * @slot: Per-slot configuration data.
+ */
+struct mci_platform_data {
+ struct dw_dma_slave dma_slave;
+ struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS];
+};
+
+#endif /* __LINUX_ATMEL_MCI_H */