mmc: core: Add packed command feature of eMMC4.5
This patch adds packed command feature of eMMC4.5.
The maximum number for packing read(or write) is offered
and exception event relevant to packed command which is
used for error handling is enabled. If host wants to use
this feature, MMC_CAP2_PACKED_CMD should be set.
Change-Id: I8013970fc9d54da7d92b0aca2bb0746189b9825b
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Maya Erez <merez@codeaurora.org>
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index cbd4fbd..2489bb5 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -249,7 +249,11 @@
#define MMC_CAP2_HS200_1_2V_SDR (1 << 6) /* can support */
#define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \
MMC_CAP2_HS200_1_2V_SDR)
-#define MMC_CAP2_DETECT_ON_ERR (1 << 8) /* On I/O err check card removal */
+#define MMC_CAP2_DETECT_ON_ERR (1 << 7) /* On I/O err check card removal */
+#define MMC_CAP2_PACKED_RD (1 << 10) /* Allow packed read */
+#define MMC_CAP2_PACKED_WR (1 << 11) /* Allow packed write */
+#define MMC_CAP2_PACKED_CMD (MMC_CAP2_PACKED_RD | \
+ MMC_CAP2_PACKED_WR) /* Allow packed commands */
mmc_pm_flag_t pm_caps; /* supported pm features */
unsigned int power_notify_type;
#define MMC_HOST_PW_NOTIFY_NONE 0