diff options
| author | Pantelis Antoniou <pantelis.antoniou@konsulko.com> | 2015-01-23 12:12:01 +0200 |
|---|---|---|
| committer | Pantelis Antoniou <pantelis.antoniou@konsulko.com> | 2015-02-23 19:34:29 +0200 |
| commit | 4b7cee533630202095748ecb396bd9eacf47ff3f (patch) | |
| tree | 00c86c2dcc3e72286fdece81acf823b0e3e60205 | |
| parent | 46414296953410706e917cef9238926084e83a4b (diff) | |
mmc: Implement SD/MMC versioning properly
The SD/MMC version scheme was buggy when dealing with standard
major.minor.change cases. Fix it by using something similar to
the linux's kernel versioning method.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Reported-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
| -rw-r--r-- | common/cmd_mmc.c | 8 | ||||
| -rw-r--r-- | include/mmc.h | 56 |
2 files changed, 43 insertions, 21 deletions
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c index 4e28c9d7a4d..1335e3d344c 100644 --- a/common/cmd_mmc.c +++ b/common/cmd_mmc.c @@ -85,8 +85,12 @@ static void print_mmcinfo(struct mmc *mmc) printf("Tran Speed: %d\n", mmc->tran_speed); printf("Rd Block Len: %d\n", mmc->read_bl_len); - printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC", - (mmc->version >> 8) & 0xf, mmc->version & 0xff); + printf("%s version %d.%d", IS_SD(mmc) ? "SD" : "MMC", + EXTRACT_SDMMC_MAJOR_VERSION(mmc->version), + EXTRACT_SDMMC_MINOR_VERSION(mmc->version)); + if (EXTRACT_SDMMC_CHANGE_VERSION(mmc->version) != 0) + printf(".%d", EXTRACT_SDMMC_CHANGE_VERSION(mmc->version)); + printf("\n"); printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No"); puts("Capacity: "); diff --git a/include/mmc.h b/include/mmc.h index 56d97bbdcf5..7d6feca5b40 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -14,24 +14,41 @@ #include <linux/compiler.h> #include <part.h> -#define SD_VERSION_SD 0x20000 -#define SD_VERSION_3 (SD_VERSION_SD | 0x300) -#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 | 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_VERSION_5_0 (MMC_VERSION_MMC | 0x500) +/* SD/MMC version bits; 8 flags, 8 major, 8 minor, 8 change */ +#define SD_VERSION_SD (1U << 31) +#define MMC_VERSION_MMC (1U << 30) + +#define MAKE_SDMMC_VERSION(a, b, c) \ + ((((u32)(a)) << 16) | ((u32)(b) << 8) | (u32)(c)) +#define MAKE_SD_VERSION(a, b, c) \ + (SD_VERSION_SD | MAKE_SDMMC_VERSION(a, b, c)) +#define MAKE_MMC_VERSION(a, b, c) \ + (MMC_VERSION_MMC | MAKE_SDMMC_VERSION(a, b, c)) + +#define EXTRACT_SDMMC_MAJOR_VERSION(x) \ + (((u32)(x) >> 16) & 0xff) +#define EXTRACT_SDMMC_MINOR_VERSION(x) \ + (((u32)(x) >> 8) & 0xff) +#define EXTRACT_SDMMC_CHANGE_VERSION(x) \ + ((u32)(x) & 0xff) + +#define SD_VERSION_3 MAKE_SD_VERSION(3, 0, 0) +#define SD_VERSION_2 MAKE_SD_VERSION(2, 0, 0) +#define SD_VERSION_1_0 MAKE_SD_VERSION(1, 0, 0) +#define SD_VERSION_1_10 MAKE_SD_VERSION(1, 10, 0) + +#define MMC_VERSION_UNKNOWN MAKE_MMC_VERSION(0, 0, 0) +#define MMC_VERSION_1_2 MAKE_MMC_VERSION(1, 2, 0) +#define MMC_VERSION_1_4 MAKE_MMC_VERSION(1, 4, 0) +#define MMC_VERSION_2_2 MAKE_MMC_VERSION(2, 2, 0) +#define MMC_VERSION_3 MAKE_MMC_VERSION(3, 0, 0) +#define MMC_VERSION_4 MAKE_MMC_VERSION(4, 0, 0) +#define MMC_VERSION_4_1 MAKE_MMC_VERSION(4, 1, 0) +#define MMC_VERSION_4_2 MAKE_MMC_VERSION(4, 2, 0) +#define MMC_VERSION_4_3 MAKE_MMC_VERSION(4, 3, 0) +#define MMC_VERSION_4_41 MAKE_MMC_VERSION(4, 4, 1) +#define MMC_VERSION_4_5 MAKE_MMC_VERSION(4, 5, 0) +#define MMC_VERSION_5_0 MAKE_MMC_VERSION(5, 0, 0) #define MMC_MODE_HS (1 << 0) #define MMC_MODE_HS_52MHz (1 << 1) @@ -43,7 +60,8 @@ #define SD_DATA_4BIT 0x00040000 -#define IS_SD(x) (x->version & SD_VERSION_SD) +#define IS_SD(x) ((x)->version & SD_VERSION_SD) +#define IS_MMC(x) ((x)->version & SD_VERSION_MMC) #define MMC_DATA_READ 1 #define MMC_DATA_WRITE 2 |