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authorAbhilash Kesavan <a.kesavan@samsung.com>2015-01-10 08:41:36 +0530
committerOlof Johansson <olof@lixom.net>2015-01-16 19:10:41 -0800
commit25217fef355174209eff68c0eb438a8af5d7b01c (patch)
tree468555f81163fdb4804f3b30d79e11a736fa94fc
parent896ddd600ba4a3426aeb11710ae9c28dd7ce68ce (diff)
downloadop-kernel-dev-25217fef355174209eff68c0eb438a8af5d7b01c.zip
op-kernel-dev-25217fef355174209eff68c0eb438a8af5d7b01c.tar.gz
ARM: dts: disable CCI on exynos5420 based arndale-octa
The arndale-octa board was giving "imprecise external aborts" during boot-up with MCPM enabled. CCI enablement of the boot cluster was found to be the cause of these aborts (possibly because the secure f/w was not allowing it). Hence, disable CCI for the arndale-octa board. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: Kevin Hilman <khilman@linaro.org> Tested-by: Tyler Baker <tyler.baker@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
-rw-r--r--arch/arm/boot/dts/exynos5420-arndale-octa.dts4
-rw-r--r--arch/arm/boot/dts/exynos5420.dtsi2
2 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index aa7a7d7..db2c1c4 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -372,3 +372,7 @@
&usbdrd_dwc3_1 {
dr_mode = "host";
};
+
+&cci {
+ status = "disabled";
+};
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 517e50f..0a82ae7 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -120,7 +120,7 @@
};
};
- cci@10d20000 {
+ cci: cci@10d20000 {
compatible = "arm,cci-400";
#address-cells = <1>;
#size-cells = <1>;
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