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mmc: Fix interpretation of MMC_CMD_ALL_SEND_CID

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The interpretation of the data returned by the MMC_CMD_ALL_SEND_CID
command was incorrect with respect to the JEDEC Standard No. 84-A441.

This change makes the interpretation correct with respect to the
defined fields of the CID register.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Taylor Hutt <thutt@chromium.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Taylor Hutt 2012-10-20 17:15:59 +00:00 • committed by Andy Fleming
parent d0ebbb8dfa
commit babce5f64e
1 changed files with 9 additions and 7 deletions
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16
drivers/mmc/mmc.c
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@ -1135,13 +1135,15 @@ static int mmc_startup(struct mmc *mmc)
mmc->block_dev.type = 0;
mmc->block_dev.blksz = mmc->read_bl_len;
mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len);
sprintf(mmc->block_dev.vendor, "Man %06x Snr %08x", mmc->cid[0] >> 8,
(mmc->cid[2] << 8) | (mmc->cid[3] >> 24));
sprintf(mmc->block_dev.product, "%c%c%c%c%c", mmc->cid[0] & 0xff,
(mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
(mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
sprintf(mmc->block_dev.revision, "%d.%d", mmc->cid[2] >> 28,
(mmc->cid[2] >> 24) & 0xf);
sprintf(mmc->block_dev.vendor, "Man %06x Snr %04x%04x",
mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff),
(mmc->cid[3] >> 16) & 0xffff);
sprintf(mmc->block_dev.product, "%c%c%c%c%c%c", mmc->cid[0] & 0xff,
(mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
(mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff,
(mmc->cid[2] >> 24) & 0xff);
sprintf(mmc->block_dev.revision, "%d.%d", (mmc->cid[2] >> 20) & 0xf,
(mmc->cid[2] >> 16) & 0xf);
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBDISK_SUPPORT)
init_part(&mmc->block_dev);
#endif