[PATCH] arm: dts: exynos5: Remove multi core timer

Chirantan Ekbote chirantan at chromium.org
Thu May 15 14:07:59 PDT 2014


The multi core timer and the ARM architected timer are two different
interfaces to the same underlying hardware timer.  This causes some
strange timing issues when they are both enabled at the same time so
remove the mct from the device tree and keep only the architected
timer.

Cc: Olof Johansson <olof at lixom.net>
Cc: Doug Anderson <dianders at chromium.org>
Cc: Kukjin Kim <kgene.kim at samsung.com>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-samsung-soc at vger.kernel.org

Signed-off-by: Chirantan Ekbote <chirantan at chromium.org>
---
 arch/arm/boot/dts/exynos5250.dtsi | 24 ------------------------
 arch/arm/boot/dts/exynos5420.dtsi | 30 ------------------------------
 2 files changed, 54 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 3742331..60cd945 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -110,30 +110,6 @@
 		clock-frequency = <24000000>;
 	};
 
-	mct at 101C0000 {
-		compatible = "samsung,exynos4210-mct";
-		reg = <0x101C0000 0x800>;
-		interrupt-controller;
-		#interrups-cells = <2>;
-		interrupt-parent = <&mct_map>;
-		interrupts = <0 0>, <1 0>, <2 0>, <3 0>,
-			     <4 0>, <5 0>;
-		clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MCT>;
-		clock-names = "fin_pll", "mct";
-
-		mct_map: mct-map {
-			#interrupt-cells = <2>;
-			#address-cells = <0>;
-			#size-cells = <0>;
-			interrupt-map = <0x0 0 &combiner 23 3>,
-					<0x1 0 &combiner 23 4>,
-					<0x2 0 &combiner 25 2>,
-					<0x3 0 &combiner 25 3>,
-					<0x4 0 &gic 0 120 0>,
-					<0x5 0 &gic 0 121 0>;
-		};
-	};
-
 	pmu {
 		compatible = "arm,cortex-a15-pmu";
 		interrupt-parent = <&combiner>;
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index c3a9a66..3c38c6d 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -169,36 +169,6 @@
 		status = "disabled";
 	};
 
-	mct at 101C0000 {
-		compatible = "samsung,exynos4210-mct";
-		reg = <0x101C0000 0x800>;
-		interrupt-controller;
-		#interrups-cells = <1>;
-		interrupt-parent = <&mct_map>;
-		interrupts = <0>, <1>, <2>, <3>, <4>, <5>, <6>, <7>,
-				<8>, <9>, <10>, <11>;
-		clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MCT>;
-		clock-names = "fin_pll", "mct";
-
-		mct_map: mct-map {
-			#interrupt-cells = <1>;
-			#address-cells = <0>;
-			#size-cells = <0>;
-			interrupt-map = <0 &combiner 23 3>,
-					<1 &combiner 23 4>,
-					<2 &combiner 25 2>,
-					<3 &combiner 25 3>,
-					<4 &gic 0 120 0>,
-					<5 &gic 0 121 0>,
-					<6 &gic 0 122 0>,
-					<7 &gic 0 123 0>,
-					<8 &gic 0 128 0>,
-					<9 &gic 0 129 0>,
-					<10 &gic 0 130 0>,
-					<11 &gic 0 131 0>;
-		};
-	};
-
 	gsc_pd: power-domain at 10044000 {
 		compatible = "samsung,exynos4210-pd";
 		reg = <0x10044000 0x20>;
-- 
1.9.1.423.g4596e3a




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