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authorTushar Behera <tushar.behera@linaro.org>2014-03-21 04:26:40 +0900
committerKukjin Kim <kgene.kim@samsung.com>2014-03-21 04:27:36 +0900
commit3da355c03a44bc45f3688bb68b51eefa738d1857 (patch)
tree6d6d9117e2d2e255bd149ed468ca27d2ff5372f0 /arch
parentba0d7ed391b7b3fb5ca98d9cf4d067b7f5ed956b (diff)
ARM: dts: Disable MDMA1 node for arndale-octa board
MDMA1 can support both secure and non-secure AXI transactions. When this is enabled in the kernel for boards that run in secure mode, we get imprecise external aborts causing the kernel to oops. Unhandled fault: imprecise external abort (0x1406) at 0x00000000 Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007 Suggested-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Tested-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/boot/dts/exynos5420-arndale-octa.dts12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index f509e8fc290f..810ec732f855 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -361,4 +361,16 @@
gpio-key,wakeup;
};
};
+
+ amba {
+ mdma1: mdma@11C10000 {
+ /*
+ * MDMA1 can support both secure and non-secure
+ * AXI transactions. When this is enabled in the kernel
+ * for boards that run in secure mode, we are getting
+ * imprecise external aborts causing the kernel to oops.
+ */
+ status = "disabled";
+ };
+ };
};