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mmc: set bus width to 1 and clock to minimum early during initialization

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We need to switch back to 1-bit before initialization or SD 2.0 cards
will fail to send SCR if we've switched to 4-bit already.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
This commit is contained in:
Ilya Yanok 2009-06-29 17:53:16 +04:00 committed by Wolfgang Denk
parent cff80f2cd1
commit b86b85e261
1 changed files with 3 additions and 0 deletions
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3
drivers/mmc/mmc.c
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@ -859,6 +859,9 @@ int mmc_init(struct mmc *mmc)
if (err) if (err)
return err; return err;
mmc_set_bus_width(mmc, 1);
mmc_set_clock(mmc, 1);
/* Reset the Card */ /* Reset the Card */
err = mmc_go_idle(mmc); err = mmc_go_idle(mmc);