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

   1 From a1cd8994c1f5d01f8932ad5d047677d6a264f711 Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Wed, 10 Jul 2013 23:53:31 +0100
   4 Subject: [PATCH 076/174] sdhci-bcm2807: Increase sync_after_dma timeout
   5
   6 The current timeout is being hit with some cards that complete successfully with a longer timeout.
   7 The timeout is not handled well, and is believed to be a code path that causes corruption.
   8 872a8ff suggests that crappy cards can take up to 3 seconds to respond
   9 ---
  10  drivers/mmc/host/sdhci-bcm2708.c | 2 +-
  11  1 file changed, 1 insertion(+), 1 deletion(-)
  12
  13 --- a/drivers/mmc/host/sdhci-bcm2708.c
  14 +++ b/drivers/mmc/host/sdhci-bcm2708.c
  15 @@ -842,7 +842,7 @@ static void sdhci_bcm2708_dma_complete_i
  16                            We get CRC and DEND errors unless we wait for
  17                            the SD controller to finish reading/writing to the card. */
  18                         u32 state_mask;
  19 -                       int timeout=30*5000;
  20 +                       int timeout=3*1000*1000;
  21
  22                         DBG("PDMA over - sync card\n");
  23                         if (data->flags & MMC_DATA_READ)