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mmc: Add debug() output on read errors

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Allow read errors to be diagnosed more easily.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-06-23 15:38:50 -06:00
parent e7ecf7cb5a
commit 1169299135
1 changed files with 6 additions and 2 deletions
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8
drivers/mmc/mmc.c
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@ -250,14 +250,18 @@ static ulong mmc_bread(int dev_num, lbaint_t start, lbaint_t blkcnt, void *dst)
return 0;
}
if (mmc_set_blocklen(mmc, mmc->read_bl_len))
if (mmc_set_blocklen(mmc, mmc->read_bl_len)) {
debug("%s: Failed to set blocklen\n", __func__);
return 0;
}
do {
cur = (blocks_todo > mmc->cfg->b_max) ?
mmc->cfg->b_max : blocks_todo;
if(mmc_read_blocks(mmc, dst, start, cur) != cur)
if (mmc_read_blocks(mmc, dst, start, cur) != cur) {
debug("%s: Failed to read blocks\n", __func__);
return 0;
}
blocks_todo -= cur;
start += cur;
dst += cur * mmc->read_bl_len;