recipes-kernel/linux/linux-omap-2.6.39/sakoman/0023-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch

   1 From c60f16ec7e69f59b3bef9f9b7041a973d144dc87 Mon Sep 17 00:00:00 2001
   2 From: Steve Sakoman <steve@sakoman.com>
   3 Date: Wed, 12 Jan 2011 05:54:55 -0800
   4 Subject: [PATCH 23/59] omap: mmc: Adjust dto to eliminate timeout errors
   5
   6 A number of SD card types were experiencing timeout errors.  This
   7 could also lead to data corruption in some cases.
   8
   9 This fix proposed by Sukumar Ghoral of TI.
  10 ---
  11  drivers/mmc/host/omap_hsmmc.c |    1 +
  12  1 files changed, 1 insertions(+), 0 deletions(-)
  13
  14 diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
  15 index d57686c..7fb03e8 100644
  16 --- a/drivers/mmc/host/omap_hsmmc.c
  17 +++ b/drivers/mmc/host/omap_hsmmc.c
  18 @@ -1400,6 +1400,7 @@ static void set_data_timeout(struct omap_hsmmc_host *host,
  19         cycle_ns = 1000000000 / (clk_get_rate(host->fclk) / clkd);
  20         timeout = timeout_ns / cycle_ns;
  21         timeout += timeout_clks;
  22 +       timeout *= 2;
  23         if (timeout) {
  24                 while ((timeout & 0x80000000) == 0) {
  25                         dto += 1;
  26 --
  27 1.6.6.1
  28