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linux-ti33x-psp 3.1: add dto patch to fix problems with various sd cards

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Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
This commit is contained in:
Koen Kooi
2012-01-26 18:38:04 +01:00
parent 23b0213494
commit bfbb1cc110
2 changed files with 36 additions and 1 deletions
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34
recipes-kernel/linux/linux-ti33x-psp-3.1/0038-omap_hsmmc-Set-dto-to-max-value-of-14-to-avoid-SD-Ca.patch Normal file
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@@ -0,0 +1,34 @@
From d12058d27dddf60b36f5b2142ee999e55bddfff6 Mon Sep 17 00:00:00 2001
From: Steve Sakoman <steve@sakoman.com>
Date: Mon, 18 Jul 2011 23:13:41 -0500
Subject: [PATCH 38/38] 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 35505bd..0be77ec 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1574,6 +1574,9 @@ 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);
--
1.7.7.5

3
recipes-kernel/linux/linux-ti33x-psp_3.1.bb
View File

@@ -11,7 +11,7 @@ MULTI_CONFIG_BASE_SUFFIX = ""
BRANCH = "v3.1-meta-ti-r1r+gitr1d84d8853fa30cf3db2571a5aec572accca4e29d"
SRCREV = "1d84d8853fa30cf3db2571a5aec572accca4e29d"
MACHINE_KERNEL_PR_append = "k+gitr${SRCREV}"
MACHINE_KERNEL_PR_append = "l+gitr${SRCREV}"
COMPATIBLE_MACHINE = "(ti33x)"
@@ -62,6 +62,7 @@ PATCHES_OVER_PSP = " \
file://0035-beaglebone-add-structs-for-DVI-cape-LEDs.patch\
file://0036-beaglebone-update-LCD-cape-partnumber.patch \
file://0037-beaglebone-compare-complete-partnumber-not-the-first.patch \
file://0038-omap_hsmmc-Set-dto-to-max-value-of-14-to-avoid-SD-Ca.patch \
"
SRC_URI += "${@base_contains('DISTRO_FEATURES', 'tipspkernel', "", "${PATCHES_OVER_PSP}", d)}"