sdio: support IO_RW_EXTENDED
Support the multi-byte transfer operation, including handlers for
common operations like writel()/readl().
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h
index 56239f4..9b1ec76 100644
--- a/include/linux/mmc/sdio.h
+++ b/include/linux/mmc/sdio.h
@@ -15,6 +15,7 @@
/* SDIO commands type argument response */
#define SD_IO_SEND_OP_COND 5 /* bcr [23:0] OCR R4 */
#define SD_IO_RW_DIRECT 52 /* ac [31:0] See below R5 */
+#define SD_IO_RW_EXTENDED 53 /* adtc [31:0] See below R5 */
/*
* SD_IO_RW_DIRECT argument format:
@@ -27,6 +28,17 @@
*/
/*
+ * SD_IO_RW_EXTENDED argument format:
+ *
+ * [31] R/W flag
+ * [30:28] Function number
+ * [27] Block mode
+ * [26] Increment address
+ * [25:9] Register address
+ * [8:0] Byte/block count
+ */
+
+/*
SDIO status in R5
Type
e : error bit