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authorJaehoon Chung <jh80.chung@samsung.com>2014-05-16 13:59:54 +0900
committerMinkyu Kang <mk7.kang@samsung.com>2014-05-16 14:54:26 +0900
commitd22e3d46a918bde2e6d3bc3f5782548d5ed75358 (patch)
treeb1f31b604bbb1ca8e8cc0c746ec38428d0ed291e /include/mmc.h
parent8caf46d1890b625aafe9cc16114b3c65842dbb98 (diff)
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mmc: support the DDR mode for eMMC
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Tested-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'include/mmc.h')
-rw-r--r--include/mmc.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h
index d5a896f..aa2d1ca 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -38,6 +38,7 @@
#define MMC_MODE_8BIT (1 << 3)
#define MMC_MODE_SPI (1 << 4)
#define MMC_MODE_HC (1 << 5)
+#define MMC_MODE_DDR_52MHz (1 << 6)
#define SD_DATA_4BIT 0x00040000
@@ -169,10 +170,16 @@
#define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */
#define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */
+#define EXT_CSD_CARD_TYPE_DDR_1_8V (1 << 2)
+#define EXT_CSD_CARD_TYPE_DDR_1_2V (1 << 3)
+#define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \
+ | EXT_CSD_CARD_TYPE_DDR_1_2V)
#define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
#define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
#define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
+#define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */
+#define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */
#define EXT_CSD_BOOT_ACK_ENABLE (1 << 6)
#define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3)