openwrtv4/target/linux/brcm2708/patches-3.10/0076-sdhci-bcm2807-Increase-sync_after_dma-timeout.patch

29 lines
1.1 KiB
Diff
Raw Normal View History

From 702b7652ec63948bb7acc7c86641599b5b69404a Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Wed, 10 Jul 2013 23:53:31 +0100
Subject: [PATCH 076/196] sdhci-bcm2807: Increase sync_after_dma timeout
The current timeout is being hit with some cards that complete successfully with a longer timeout.
The timeout is not handled well, and is believed to be a code path that causes corruption.
872a8ff suggests that crappy cards can take up to 3 seconds to respond
---
drivers/mmc/host/sdhci-bcm2708.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-bcm2708.c b/drivers/mmc/host/sdhci-bcm2708.c
index c2409b9..4770680 100644
--- a/drivers/mmc/host/sdhci-bcm2708.c
+++ b/drivers/mmc/host/sdhci-bcm2708.c
@@ -842,7 +842,7 @@ static void sdhci_bcm2708_dma_complete_irq(struct sdhci_host *host,
We get CRC and DEND errors unless we wait for
the SD controller to finish reading/writing to the card. */
u32 state_mask;
- int timeout=30*5000;
+ int timeout=3*1000*1000;
DBG("PDMA over - sync card\n");
if (data->flags & MMC_DATA_READ)
--
1.9.1