openwrt/target/linux/brcm2708/patches-3.10/0076-sdhci-bcm2807-Increase-sync_after_dma-timeout.patch
Florian Fainelli bb39b8d99a brcm2708: update against latest rpi-3.10.y branch
Update our copies of the brcm2708 patches to the latest rpi-3.10-y
rebased against linux-3.10.y stable (3.10.32). This should hopefully
make it easier for us in the future to leverage the raspberry/rpi-*
branches.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 39770
2014-02-28 20:30:08 +00:00

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Diff

From a1cd8994c1f5d01f8932ad5d047677d6a264f711 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Wed, 10 Jul 2013 23:53:31 +0100
Subject: [PATCH 076/174] 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(-)
--- a/drivers/mmc/host/sdhci-bcm2708.c
+++ b/drivers/mmc/host/sdhci-bcm2708.c
@@ -842,7 +842,7 @@ static void sdhci_bcm2708_dma_complete_i
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)