diff options
Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0024-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch')
| -rw-r--r-- | extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0024-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0024-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch b/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0024-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch new file mode 100644 index 00000000..bd1764a5 --- /dev/null +++ b/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0024-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch @@ -0,0 +1,28 @@ +From a442a2b9b2f9f51375f8a796ee88784d3754be00 Mon Sep 17 00:00:00 2001 +From: Steve Sakoman <steve@sakoman.com> +Date: Wed, 12 Jan 2011 05:54:55 -0800 +Subject: [PATCH 24/32] omap: mmc: Adjust dto to eliminate timeout errors + +A number of SD card types were experiencing timeout errors. This +could also lead to data corruption in some cases. + +This fix proposed by Sukumar Ghoral of TI. +--- + drivers/mmc/host/omap_hsmmc.c | 1 + + 1 files changed, 1 insertions(+), 0 deletions(-) + +diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c +index d57686c..7fb03e8 100644 +--- a/drivers/mmc/host/omap_hsmmc.c ++++ b/drivers/mmc/host/omap_hsmmc.c +@@ -1400,6 +1400,7 @@ static void set_data_timeout(struct omap_hsmmc_host *host, + cycle_ns = 1000000000 / (clk_get_rate(host->fclk) / clkd); + timeout = timeout_ns / cycle_ns; + timeout += timeout_clks; ++ timeout *= 2; + if (timeout) { + while ((timeout & 0x80000000) == 0) { + dto += 1; +-- +1.6.6.1 + |