target/linux/brcm2708/patches-3.10/0017-sdhci-bcm2708-raise-DMA-sync-timeout.patch

   1 From 93ad4d743dfa8a5f6bb1d7abf739c7149012099b Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Sat, 16 Jun 2012 22:35:38 +0100
   4 Subject: [PATCH 017/196] sdhci-bcm2708: raise DMA sync timeout
   5
   6 Commit d64b84c by accident reduced the maximum overall DMA sync
   7 timeout. The maximum overall timeout was reduced from 100ms to 30ms,
   8 which isn't enough for many cards. Increase it to 150ms, just to be
   9 extra safe. According to commit 872a8ff in the MMC subsystem, some
  10 cards require crazy long timeouts (3s), but as we're busy-waiting,
  11 and shouldn't delay for such a long time, let's hope 150ms will be
  12 enough for most cards.
  13 ---
  14  drivers/mmc/host/sdhci-bcm2708.c | 2 +-
  15  1 file changed, 1 insertion(+), 1 deletion(-)
  16
  17 diff --git a/drivers/mmc/host/sdhci-bcm2708.c b/drivers/mmc/host/sdhci-bcm2708.c
  18 index 0ee983c..b0cdd7d 100644
  19 --- a/drivers/mmc/host/sdhci-bcm2708.c
  20 +++ b/drivers/mmc/host/sdhci-bcm2708.c
  21 @@ -830,7 +830,7 @@ static void sdhci_bcm2708_dma_complete_irq(struct sdhci_host *host,
  22                    We get CRC and DEND errors unless we wait for
  23                    the SD controller to finish reading/writing to the card. */
  24                 u32 state_mask;
  25 -               int timeout=1000;
  26 +               int timeout=5000;
  27
  28                 DBG("PDMA over - sync card\n");
  29                 if (data->flags & MMC_DATA_READ)
  30 --
  31 1.9.1
  32