From: Abhilash Kesavan a.kesavan@samsung.com
[ Upstream commit 25217fef355174209eff68c0eb438a8af5d7b01c ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/exynos5420-arndale-octa.dts | 4 ++++ arch/arm/boot/dts/exynos5420.dtsi | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts index aa7a7d727a7e..db2c1c4cd900 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 1353a092134f..9655a3efbd15 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>;