target/linux/brcm2708/patches-3.10/0010-sdcard-patch-improvements-from-naren.patch

   1 From 7063eab83522ea1f24934b971418bfdd4c5578f1 Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Thu, 17 May 2012 14:44:19 +0100
   4 Subject: [PATCH 010/174] sdcard patch improvements from naren
   5
   6 ---
   7  drivers/mmc/host/sdhci-bcm2708.c | 23 +++++++----------------
   8  1 file changed, 7 insertions(+), 16 deletions(-)
   9
  10 --- a/drivers/mmc/host/sdhci-bcm2708.c
  11 +++ b/drivers/mmc/host/sdhci-bcm2708.c
  12 @@ -886,8 +886,7 @@ static void sdhci_bcm2708_dma_complete_i
  13                    We get CRC and DEND errors unless we wait for
  14                    the SD controller to finish reading/writing to the card. */
  15                 u32 state_mask;
  16 -               int timeout=1000000;
  17 -               hptime_t now = hptime();
  18 +               int timeout=1000;
  19
  20                 DBG("PDMA over - sync card\n");
  21                 if (data->flags & MMC_DATA_READ)
  22 @@ -895,17 +894,12 @@ static void sdhci_bcm2708_dma_complete_i
  23                 else
  24                         state_mask = SDHCI_DOING_WRITE;
  25
  26 -               while (0 != (sdhci_bcm2708_raw_readl(host,
  27 -                                                    SDHCI_PRESENT_STATE) &
  28 -                            state_mask) && --timeout > 0)
  29 +               while (0 != (sdhci_bcm2708_raw_readl(host, SDHCI_PRESENT_STATE)
  30 +                       & state_mask) && --timeout > 0)
  31 +               {
  32 +                       udelay(100);
  33                         continue;
  34 -
  35 -               if (1000000-timeout > 4000) /*ave. is about 3250*/
  36 -                       DBG("%s: note - long %s sync %luns - "
  37 -                              "%d its.\n",
  38 -                              mmc_hostname(host->mmc),
  39 -                              data->flags & MMC_DATA_READ? "read": "write",
  40 -                              since_ns(now), 1000000-timeout);
  41 +               }
  42                 if (timeout <= 0)
  43                         printk(KERN_ERR"%s: final %s to SD card still "
  44                                "running\n",
  45 @@ -1175,10 +1169,7 @@ static unsigned int sdhci_bcm2708_uhs_br
  46
  47  static unsigned int sdhci_bcm2708_missing_status(struct sdhci_host *host)
  48  {
  49 -       if(host->last_cmdop == MMC_SEND_STATUS)
  50 -               return 1;
  51 -       else
  52 -               return 0;
  53 +       return 1;
  54  }
  55
  56  /***************************************************************************** \