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authorRob Herring <rob.herring@calxeda.com>2012-04-30 14:30:04 -0500
committerJohn Rigby <john.rigby@linaro.org>2012-06-21 05:10:43 -0600
commitfd9294bc00d2a4647c12c85192faf947cdfe8ae9 (patch)
tree89c5592b4ba53be1b1e859dfa0349ed4ea108aac
parentfd67d957f874ea6382500f474935073691946181 (diff)
UBUNTU: SAUCE: force DMA buffers to non-bufferable on highbank
BugLink: http://bugs.launchpad.net/bugs/1000831 The xgmac driver has problems with bufferable DMA descriptors. For now, change the memory type to get things working reliably. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Ike Panhc <ike.pan@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
-rw-r--r--arch/arm/mm/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 7c8a7d8467b..4248422d00b 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -895,7 +895,7 @@ config ARM_L1_CACHE_SHIFT
config ARM_DMA_MEM_BUFFERABLE
bool "Use non-cacheable memory for DMA" if (CPU_V6 || CPU_V6K) && !CPU_V7
depends on !(MACH_REALVIEW_PB1176 || REALVIEW_EB_ARM11MP || \
- MACH_REALVIEW_PB11MP)
+ MACH_REALVIEW_PB11MP || ARCH_HIGHBANK)
default y if CPU_V6 || CPU_V6K || CPU_V7
help
Historically, the kernel has used strongly ordered mappings to