eMMC card is introduced the eMMC4.5.
But now eMMC card is checked up to eMMC4.0.
This patch is supported until eMMC4.5
Signed-off-by: Jaehoon Chung <jh80.ch...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
---
common/cmd_mmc.c | 5 ++++-
drivers/mmc/mmc.c | 25 +++++++++++++++++++++++++
include/mmc.h | 8 ++++++++
3 files changed, 37 insertions(+), 1 deletions(-)
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index 8f13c22..ff150ca 100644
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -106,7 +106,10 @@ static void print_mmcinfo(struct mmc *mmc)
printf("Rd Block Len: %d\n", mmc->read_bl_len);
printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
- (mmc->version >> 4) & 0xf, mmc->version & 0xf);
+ (mmc->version >> 4) & 0xf,
+ (mmc->version & 0xf) == EXT_CSD_REV_1_5 ?
+ 41 :((mmc->version & 0xf) > EXT_CSD_REV_1_5 ?
+ (mmc->version & 0xf) - 1 : (mmc->version & 0xf)));
printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
puts("Capacity: ");
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 49c3349..e035012 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -651,6 +651,31 @@ int mmc_change_freq(struct mmc *mmc)
if (err)
return err;
+ switch (ext_csd[EXT_CSD_REV]) {
+ case EXT_CSD_REV_1_0:
+ mmc->version |= EXT_CSD_REV_1_0;
+ break;
+ case EXT_CSD_REV_1_1:
+ mmc->version |= EXT_CSD_REV_1_1;
+ break;
+ case EXT_CSD_REV_1_2:
+ mmc->version |= EXT_CSD_REV_1_2;
+ break;
+ case EXT_CSD_REV_1_3:
+ mmc->version |= EXT_CSD_REV_1_3;
+ break;
+ case EXT_CSD_REV_1_5:
+ mmc->version |= EXT_CSD_REV_1_5;
+ break;
+ case EXT_CSD_REV_1_6:
+ mmc->version |= EXT_CSD_REV_1_6;
+ break;
+ case EXT_CSD_REV_1_4:
+ default:
+ printf("Unknown revision - %x\n", ext_csd[EXT_CSD_REV]);
+ return 0;
+ }
+
/* No high-speed support */
if (!ext_csd[EXT_CSD_HS_TIMING])
return 0;
diff --git a/include/mmc.h b/include/mmc.h
index 30c2375..726da99 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -157,6 +157,14 @@
#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
#define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */
+#define EXT_CSD_REV_1_0 0
+#define EXT_CSD_REV_1_1 1
+#define EXT_CSD_REV_1_2 2
+#define EXT_CSD_REV_1_3 3
+#define EXT_CSD_REV_1_4 4
+#define EXT_CSD_REV_1_5 5
+#define EXT_CSD_REV_1_6 6
+
/*
* EXT_CSD field definitions
*/
--
1.7.4.1
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