Whitebox
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mmc: support the correct card version for eMMC

Browse Source 
eMMC vesrion is supported up to v4.5.
But bootloader isn't saw the exact eMMC version.
After applied this patch,
if use the mmcinfo command, then can see the exactly mmc version.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Rommel Custodio <sessyargc@gmail.com>
master
Jaehoon Chung 12 years ago committed by Tom Rini
parent 22a4a6c5c2
commit 64f4a6192f
3 changed files with 32 additions and 9 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 2
      common/cmd_mmc.c
  2. 18
      drivers/mmc/mmc.c
  3. 21
      include/mmc.h

2
common/cmd_mmc.c
Unescape View File

@ -106,7 +106,7 @@ 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 >> 8) & 0xf, mmc->version & 0xff);
printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
puts("Capacity: ");

18
drivers/mmc/mmc.c
Unescape View File

@ -1054,6 +1054,24 @@ static int mmc_startup(struct mmc *mmc)
mmc->capacity = capacity;
}
switch (ext_csd[EXT_CSD_REV]) {
case 1:
mmc->version = MMC_VERSION_4_1;
break;
case 2:
mmc->version = MMC_VERSION_4_2;
break;
case 3:
mmc->version = MMC_VERSION_4_3;
break;
case 5:
mmc->version = MMC_VERSION_4_41;
break;
case 6:
mmc->version = MMC_VERSION_4_5;
break;
}
/*
* Check whether GROUP_DEF is set, if yes, read out
* group size from ext_csd directly, or calculate

21
include/mmc.h
Unescape View File

@ -30,16 +30,21 @@
#include <linux/compiler.h>
#define SD_VERSION_SD 0x20000
#define SD_VERSION_2 (SD_VERSION_SD | 0x20)
#define SD_VERSION_1_0 (SD_VERSION_SD | 0x10)
#define SD_VERSION_1_10 (SD_VERSION_SD | 0x1a)
#define SD_VERSION_2 (SD_VERSION_SD | 0x200)
#define SD_VERSION_1_0 (SD_VERSION_SD | 0x100)
#define SD_VERSION_1_10 (SD_VERSION_SD | 0x10a)
#define MMC_VERSION_MMC 0x10000
#define MMC_VERSION_UNKNOWN (MMC_VERSION_MMC)
#define MMC_VERSION_1_2 (MMC_VERSION_MMC | 0x12)
#define MMC_VERSION_1_4 (MMC_VERSION_MMC | 0x14)
#define MMC_VERSION_2_2 (MMC_VERSION_MMC | 0x22)
#define MMC_VERSION_3 (MMC_VERSION_MMC | 0x30)
#define MMC_VERSION_4 (MMC_VERSION_MMC | 0x40)
#define MMC_VERSION_1_2 (MMC_VERSION_MMC | 0x102)
#define MMC_VERSION_1_4 (MMC_VERSION_MMC | 0x104)
#define MMC_VERSION_2_2 (MMC_VERSION_MMC | 0x202)
#define MMC_VERSION_3 (MMC_VERSION_MMC | 0x300)
#define MMC_VERSION_4 (MMC_VERSION_MMC | 0x400)
#define MMC_VERSION_4_1 (MMC_VERSION_MMC | 0x401)
#define MMC_VERSION_4_2 (MMC_VERSION_MMC | 0x402)
#define MMC_VERSION_4_3 (MMC_VERSION_MMC | 0x403)
#define MMC_VERSION_4_41 (MMC_VERSION_MMC | 0x429)
#define MMC_VERSION_4_5 (MMC_VERSION_MMC | 0x405)
#define MMC_MODE_HS 0x001
#define MMC_MODE_HS_52MHz 0x010

Write Preview
Loading…
Cancel
Save