diff options
| author | Pierre Ossman <drzeus@drzeus.cx> | 2007-10-27 14:14:23 +0200 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-10-27 14:14:23 +0200 |
| commit | 78e480731ab89e311ecdb455d04903cafbe163ca (patch) | |
| tree | 80d443e1f723314ac8921623475ea23ac70a5d18 | |
| parent | 6356a9d955e1898eadaa8cba9a5137b1787c0c7e (diff) | |
| download | kernel_samsung_aries-78e480731ab89e311ecdb455d04903cafbe163ca.zip kernel_samsung_aries-78e480731ab89e311ecdb455d04903cafbe163ca.tar.gz kernel_samsung_aries-78e480731ab89e311ecdb455d04903cafbe163ca.tar.bz2 | |
mmc: fix cid and csd byte order
MMC over SPI sends the CID and CSD registers as data, not responses,
which means that the host driver won't do the necessary byte flipping
for us.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index bf4bc6a..7471d49 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -267,15 +267,26 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host, int mmc_send_csd(struct mmc_card *card, u32 *csd) { + int ret, i; + if (!mmc_host_is_spi(card->host)) return mmc_send_cxd_native(card->host, card->rca << 16, csd, MMC_SEND_CSD); - return mmc_send_cxd_data(card, card->host, MMC_SEND_CSD, csd, 16); + ret = mmc_send_cxd_data(card, card->host, MMC_SEND_CSD, csd, 16); + if (ret) + return ret; + + for (i = 0;i < 4;i++) + csd[i] = be32_to_cpu(csd[i]); + + return 0; } int mmc_send_cid(struct mmc_host *host, u32 *cid) { + int ret, i; + if (!mmc_host_is_spi(host)) { if (!host->card) return -EINVAL; @@ -283,7 +294,14 @@ int mmc_send_cid(struct mmc_host *host, u32 *cid) cid, MMC_SEND_CID); } - return mmc_send_cxd_data(NULL, host, MMC_SEND_CID, cid, 16); + ret = mmc_send_cxd_data(NULL, host, MMC_SEND_CID, cid, 16); + if (ret) + return ret; + + for (i = 0;i < 4;i++) + cid[i] = be32_to_cpu(cid[i]); + + return 0; } int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd) |