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mmc: drop unnecessary send_status request

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It's redundant to send cmd13 after cmd9 whose response is not R1b. The
card devices will not be busy w/ cmd9.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
This commit is contained in:
Xu Ziyuan 2017-03-12 14:19:04 +08:00 • committed by Stefan Roese
parent 5b3e5b5696
commit 6f730459d9
1 changed files with 0 additions and 4 deletions
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4
drivers/mmc/mmc.c
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@ -1111,7 +1111,6 @@ static int mmc_startup(struct mmc *mmc)
struct mmc_cmd cmd;
ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN);
int timeout = 1000;
bool has_parts = false;
bool part_completed;
struct blk_desc *bdesc;
@ -1167,9 +1166,6 @@ static int mmc_startup(struct mmc *mmc)
err = mmc_send_cmd(mmc, &cmd, NULL);
/* Waiting for the ready status */
mmc_send_status(mmc, timeout);
if (err)
return err;