From: Ilya Yanok <yanok@emcraft.com>
Date: Mon, 29 Jun 2009 13:53:16 +0000 (+0400)
Subject: mmc: set bus width to 1 and clock to minimum early during initialization
X-Git-Tag: v2009.08-rc1~52
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=b86b85e2611d57d834795a92453431a1a340c3c9;p=oweals%2Fu-boot.git

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>
---

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 8c736ce497..b69ce152a8 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -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);