diff options
Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap-2.6.39/beagle/0007-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch')
| -rw-r--r-- | extras/recipes-kernel/linux/linux-omap-2.6.39/beagle/0007-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap-2.6.39/beagle/0007-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch b/extras/recipes-kernel/linux/linux-omap-2.6.39/beagle/0007-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch new file mode 100644 index 00000000..8cd314c6 --- /dev/null +++ b/extras/recipes-kernel/linux/linux-omap-2.6.39/beagle/0007-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch @@ -0,0 +1,33 @@ +From bd0b2f97c48aa6aac0c6a494f1c6ba5af5de486b Mon Sep 17 00:00:00 2001 +From: Steve Sakoman <steve@sakoman.com> +Date: Mon, 18 Jul 2011 23:13:41 -0500 +Subject: [PATCH] omap_hsmmc: Set dto to max value of 14 to avoid SD Card timeouts + +This fixes MMC errors due to timeouts on certain SD Cards following suggestions +to set dto to 14 by Jason Kridner and Steven Kipisz + +Details of the issue: +http://talk.maemo.org/showthread.php?p=1000707#post1000707 + +This fix was originally proposed by Sukumar Ghoral of TI. +--- + drivers/mmc/host/omap_hsmmc.c | 3 +++ + 1 files changed, 3 insertions(+), 0 deletions(-) + +diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c +index 9646a75..7443647 100644 +--- a/drivers/mmc/host/omap_hsmmc.c ++++ b/drivers/mmc/host/omap_hsmmc.c +@@ -1049,6 +1049,9 @@ static void set_data_timeout(struct omap_hsmmc_host *host, + dto = 14; + } + ++ /* Set dto to max value of 14 to avoid SD Card timeouts */ ++ dto = 14; ++ + reg &= ~DTO_MASK; + reg |= dto << DTO_SHIFT; + OMAP_HSMMC_WRITE(host->base, SYSCTL, reg); +-- +1.7.0.4 + |