1 files changed, 12 insertions, 1 deletions

diff --git a/include/linux/mmc/protocol.h b/include/linux/mmc/protocol.h
index 2dce60c43f4b..c90b6768329d 100644
--- a/include/linux/mmc/protocol.h
+++ b/include/linux/mmc/protocol.h
@@ -79,9 +79,12 @@
 #define MMC_GEN_CMD              56   /* adtc [0] RD/WR          R1  */
 
 /* SD commands                           type  argument     response */
-  /* class 8 */
+  /* class 0 */
 /* This is basically the same command as for MMC with some quirks. */
 #define SD_SEND_RELATIVE_ADDR     3   /* bcr                     R6  */
+#define SD_SEND_IF_COND           8   /* bcr  [11:0] See below   R7  */
+
+  /* class 10 */
 #define SD_SWITCH                 6   /* adtc [31:0] See below   R1  */
 
   /* Application commands */
@@ -115,6 +118,14 @@
  */
 
 /*
+ * SD_SEND_IF_COND argument format:
+ *
+ *      [31:12] Reserved (0)
+ *      [11:8] Host Voltage Supply Flags
+ *      [7:0] Check Pattern (0xAA)
+ */
+
+/*
   MMC status in R1
   Type
         e : error bit