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mmc: core: don't try to switch block size for dual rate mode 

Per spec, block size should always be 512 bytes for dual rate mode,
so any attempts to switch the block size under dual rate mode should
be neglected.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ziyuan Xu 2016-09-21 09:43:49 +08:00 committed by Ulf Hansson
parent 3794c54264
commit 1712c9373f
1 changed files with 2 additions and 1 deletions
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3
drivers/mmc/core/core.c
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@ -2576,7 +2576,8 @@ int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen)
{ {
struct mmc_command cmd = {0}; struct mmc_command cmd = {0};
if (mmc_card_blockaddr(card) || mmc_card_ddr52(card)) if (mmc_card_blockaddr(card) || mmc_card_ddr52(card) ||
mmc_card_hs400(card) || mmc_card_hs400es(card))
return 0; return 0;
cmd.opcode = MMC_SET_BLOCKLEN; cmd.opcode = MMC_SET_BLOCKLEN;