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-rw-r--r--include/mmc.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h
index 7e026da..3594286 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -187,6 +187,9 @@
#define EXT_CSD_BOOT_PART_NUM(x) (x << 3)
#define EXT_CSD_PARTITION_ACCESS(x) (x << 0)
+#define EXT_CSD_BOOT_BUS_WIDTH_MODE(x) (x << 3)
+#define EXT_CSD_BOOT_BUS_WIDTH_RESET(x) (x << 2)
+#define EXT_CSD_BOOT_BUS_WIDTH_WIDTH(x) (x)
#define R1_ILLEGAL_COMMAND (1 << 22)
#define R1_APP_CMD (1 << 5)
@@ -314,6 +317,8 @@ int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access);
/* Function to modify the PARTITION_CONFIG field of EXT_CSD */
int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access);
+/* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */
+int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode);
/**
* Start device initialization and return immediately; it does not block on