mmc: set bus width to 1 and clock to minimum early during initialization · b86b85e261 - Gogs

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

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>

Ilya Yanok 16 years ago

parent

cff80f2cd1

commit

b86b85e261

1 changed files with 3 additions and 0 deletions

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							+ 3
							
							- 0
						
drivers/mmc/mmc.c
							 
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				@@ -859,6 +859,9 @@ int mmc_init(struct mmc *mmc)
			
				 	if (err)
			
				 		return err;
			
				+	mmc_set_bus_width(mmc, 1);
			
				+	mmc_set_clock(mmc, 1);
			
				+
			
				 	/* Reset the Card */
			
				 	err = mmc_go_idle(mmc);