diff options
| author | Simon Glass <sjg@chromium.org> | 2013-04-03 08:54:30 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-05-01 16:24:01 -0400 |
| commit | 8bfa195e4e7ecbbabd4f070a3640212a5ac4ebde (patch) | |
| tree | 4c44de1b4e79066a0cbcdf63cd4b5ea2dd7447dd | |
| parent | 3f9315c04f3be076b81c04260c351e26adb47f30 (diff) | |
| download | u-boot-imx-8bfa195e4e7ecbbabd4f070a3640212a5ac4ebde.zip u-boot-imx-8bfa195e4e7ecbbabd4f070a3640212a5ac4ebde.tar.gz u-boot-imx-8bfa195e4e7ecbbabd4f070a3640212a5ac4ebde.tar.bz2 | |
mmc: Define a constant for the maximum block size
The number 512 appears quite a bit in the mmc code. Add a constant for this
so that it can be used here and in other parts of the code (e.g. SPL code
which loads from mmc).
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@google.com>
| -rw-r--r-- | drivers/mmc/mmc.c | 25 | ||||
| -rw-r--r-- | include/mmc.h | 3 |
2 files changed, 16 insertions, 12 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index f65a7b0..23aeec1 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -601,7 +601,7 @@ static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) data.dest = (char *)ext_csd; data.blocks = 1; - data.blocksize = 512; + data.blocksize = MMC_MAX_BLOCK_LEN; data.flags = MMC_DATA_READ; err = mmc_send_cmd(mmc, &cmd, &data); @@ -634,7 +634,7 @@ static int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) static int mmc_change_freq(struct mmc *mmc) { - ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, 512); + ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); char cardtype; int err; @@ -899,8 +899,8 @@ static int mmc_startup(struct mmc *mmc) uint mult, freq; u64 cmult, csize, capacity; struct mmc_cmd cmd; - ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, 512); - ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, 512); + ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); + ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN); int timeout = 1000; #ifdef CONFIG_MMC_SPI_CRC_ON @@ -1016,11 +1016,11 @@ static int mmc_startup(struct mmc *mmc) mmc->capacity = (csize + 1) << (cmult + 2); mmc->capacity *= mmc->read_bl_len; - if (mmc->read_bl_len > 512) - mmc->read_bl_len = 512; + if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN) + mmc->read_bl_len = MMC_MAX_BLOCK_LEN; - if (mmc->write_bl_len > 512) - mmc->write_bl_len = 512; + if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN) + mmc->write_bl_len = MMC_MAX_BLOCK_LEN; /* Select the card, and put it into Transfer Mode */ if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */ @@ -1051,7 +1051,7 @@ static int mmc_startup(struct mmc *mmc) | ext_csd[EXT_CSD_SEC_CNT + 1] << 8 | ext_csd[EXT_CSD_SEC_CNT + 2] << 16 | ext_csd[EXT_CSD_SEC_CNT + 3] << 24; - capacity *= 512; + capacity *= MMC_MAX_BLOCK_LEN; if ((capacity >> 20) > 2 * 1024) mmc->capacity = capacity; } @@ -1079,10 +1079,11 @@ static int mmc_startup(struct mmc *mmc) * group size from ext_csd directly, or calculate * the group size from the csd value. */ - if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) + if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) { mmc->erase_grp_size = - ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 512 * 1024; - else { + ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * + MMC_MAX_BLOCK_LEN * 1024; + } else { int erase_gsz, erase_gmul; erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10; erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5; diff --git a/include/mmc.h b/include/mmc.h index f0d4820..8bbc6b6 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -207,6 +207,9 @@ #define PART_ACCESS_MASK (0x7) #define PART_SUPPORT (0x1) +/* Maximum block size for MMC */ +#define MMC_MAX_BLOCK_LEN 512 + struct mmc_cid { unsigned long psn; unsigned short oid; |