target/linux/kirkwood/patches/002-mvsdio_delay.patch

   1 --- a/drivers/mmc/core/sd.c
   2 +++ b/drivers/mmc/core/sd.c
   3 @@ -263,6 +263,15 @@ static int mmc_switch_hs(struct mmc_card
   4                 return -ENOMEM;
   5         }
   6
   7 +       /*
   8 +        * Some SDHC cards, notably those with a Sandisk SD controller
   9 +        * (also found in Kingston products) need a bit of slack
  10 +        * before successfully handling the SWITCH command.  So far,
  11 +        * cards identifying themselves as "SD04G" and "SD08G" are
  12 +        * affected
  13 +        */
  14 +       udelay(1000);
  15 +
  16         err = mmc_sd_switch(card, 1, 0, 1, status);
  17         if (err)
  18                 goto out;
  19 --- a/drivers/mmc/host/mvsdio.c
  20 +++ b/drivers/mmc/host/mvsdio.c
  21 @@ -620,9 +620,11 @@ static void mvsd_set_ios(struct mmc_host
  22         if (ios->bus_width == MMC_BUS_WIDTH_4)
  23                 ctrl_reg |= MVSD_HOST_CTRL_DATA_WIDTH_4_BITS;
  24
  25 +#if 0
  26         if (ios->timing == MMC_TIMING_MMC_HS ||
  27             ios->timing == MMC_TIMING_SD_HS)
  28                 ctrl_reg |= MVSD_HOST_CTRL_HI_SPEED_EN;
  29 +#endif
  30
  31         host->ctrl = ctrl_reg;
  32         mvsd_write(MVSD_HOST_CTRL, ctrl_reg);
  33 --- a/drivers/mmc/core/core.c
  34 +++ b/drivers/mmc/core/core.c
  35 @@ -286,9 +286,9 @@ void mmc_set_data_timeout(struct mmc_dat
  36                          * The limit is really 250 ms, but that is
  37                          * insufficient for some crappy cards.
  38                          */
  39 -                       limit_us = 300000;
  40 +                       limit_us = 500000;
  41                 else
  42 -                       limit_us = 100000;
  43 +                       limit_us = 200000;
  44
  45                 /*
  46                  * SDHC cards always use these fixed values.