summaryrefslogtreecommitdiffstats
path: root/include/linux/mmc/host.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/mmc/host.h')
-rw-r--r--include/linux/mmc/host.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 913e5752569..bfcef8a1ad8 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -62,6 +62,12 @@ struct mmc_ios {
#define MMC_BUS_WIDTH_1 0
#define MMC_BUS_WIDTH_4 2
+
+ unsigned char timing; /* timing specification used */
+
+#define MMC_TIMING_LEGACY 0
+#define MMC_TIMING_MMC_HS 1
+#define MMC_TIMING_SD_HS 2
};
struct mmc_host_ops {
@@ -87,6 +93,8 @@ struct mmc_host {
#define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */
#define MMC_CAP_MULTIWRITE (1 << 1) /* Can accurately report bytes sent to card on error */
#define MMC_CAP_BYTEBLOCK (1 << 2) /* Can do non-log2 block sizes */
+#define MMC_CAP_MMC_HIGHSPEED (1 << 3) /* Can do MMC high-speed timing */
+#define MMC_CAP_SD_HIGHSPEED (1 << 4) /* Can do SD high-speed timing */
/* host specific block data */
unsigned int max_seg_size; /* see blk_queue_max_segment_size */