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[2/2] arm: dts: disable CCI on exynos420 based arndale-octa

Message ID 1420859496-27533-2-git-send-email-a.kesavan@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Abhilash Kesavan Jan. 10, 2015, 3:11 a.m. UTC 
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>
---
 arch/arm/boot/dts/exynos5420-arndale-octa.dts | 4 ++++
 arch/arm/boot/dts/exynos5420.dtsi             | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

Comments

Olof Johansson Jan. 13, 2015, 2:05 a.m. UTC | #1 
On Sat, Jan 10, 2015 at 08:41:36AM +0530, Abhilash Kesavan wrote:
> 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>

Applied 1-2 to fixes for 3.19.

Fixed two typos (arm->ARM in subject, and 420->5420).


Thanks,

-Olof
diff mbox

Patch

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>;