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Diffstat (limited to 'include/linux/mmc/host.h')
-rw-r--r--include/linux/mmc/host.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 8c5f71376e4..6014160d9c0 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -57,6 +57,11 @@ struct mmc_ios {
#define MMC_POWER_OFF 0
#define MMC_POWER_UP 1
#define MMC_POWER_ON 2
+
+ unsigned char bus_width; /* data bus width */
+
+#define MMC_BUS_WIDTH_1 0
+#define MMC_BUS_WIDTH_4 2
};
struct mmc_host_ops {
@@ -77,6 +82,10 @@ struct mmc_host {
unsigned int f_max;
u32 ocr_avail;
+ unsigned long caps; /* Host capabilities */
+
+#define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */
+
/* host specific block data */
unsigned int max_seg_size; /* see blk_queue_max_segment_size */
unsigned short max_hw_segs; /* see blk_queue_max_hw_segments */