[U-Boot] [PATCH] mmc: sdhci: Fixed timeout for sdhci_send_command()

Eli Billauer eli.billauer at gmail.com
Thu Jun 12 11:41:09 CEST 2014


The current wait loop just reads the status 10000 times, which makes the
actual timeout period platform-dependent. The udelay() call within the loop
makes the new timeout ~100 ms.

Signed-off-by: Eli Billauer <eli.billauer at gmail.com>
---
 drivers/mmc/sdhci.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 3125d13..80f3a91 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -226,6 +226,7 @@ int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
 			break;
 		if (--retry == 0)
 			break;
+		udelay(10);
 	} while ((stat & mask) != mask);
 
 	if (retry == 0) {
-- 
1.7.2.3



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