[PATCH 1/5] mmc: core: don't try to switch block size for dual rate mode

Shawn Lin
2016-09-21T01:43:49Z

From: Ziyuan Xu <xzy.xu@rock-chips.com>

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>

---

drivers/mmc/core/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index f0ed0af..2553d90 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2576,7 +2576,8 @@ int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen)
{
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;

cmd.opcode = MMC_SET_BLOCKLEN;
--
2.3.7