linux-kernel - [PATCHv2 2/5] ARM: dts: exynos4x12: Add PMU dt data to support PMU(Perforamnce Monitoring Unit)

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Date:	Wed, 12 Mar 2014 15:19:13 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	kgene.kim@...sung.com, t.figa@...sung.com
Cc:	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, kyungmin.park@...sung.com,
	pawel.moll@....com, mark.rutland@....com, swarren@...dotorg.org,
	ijc+devicetree@...lion.org.uk, linux@....linux.org.uk,
	Chanwoo Choi <cw00.choi@...sung.com>
Subject: [PATCHv2 2/5] ARM: dts: exynos4x12: Add PMU dt data to support
 PMU(Perforamnce Monitoring Unit)

ARM CPU has its own performance profiling unit(PMU, Perforamnce Monitoring Unit).
This patch add PMU dt data to support PMU which count cache hit and miss events.

PMU interrput list of Exynos4212
- <2 2> : INTG2[2] - PMUIRQ[0] for CPU0
- <3 2> : INTG3[2] - PMUIRQ[1] for CPU1

PMU interrput list of Exynos4412
- <2 2> : INTG2[2], PMUIRQ[0] for CPU0
- <3 2> : INTG3[2], PMUIRQ[1] for CPU1
- <18 2> : INTG18[2], PMUIRQ[2] : CPU2
- <19 2> : INTG19[2], PMUIRQ[3] : CPU3

Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
Reviewed-by: Tomasz Figa <t.figa@...sung.com>
---
 arch/arm/boot/dts/exynos4x12.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi
index eec1e30..a1e76ec 100644
--- a/arch/arm/boot/dts/exynos4x12.dtsi
+++ b/arch/arm/boot/dts/exynos4x12.dtsi
@@ -31,6 +31,12 @@
 		mshc0 = &mshc_0;
 	};
 
+	pmu {
+		compatible = "arm,cortex-a9-pmu";
+		interrupt-parent = <&combiner>;
+		interrupts = <2 2>, <3 2>, <18 2>, <19 2>;
+	};
+
 	pd_isp: isp-power-domain@...23CA0 {
 		compatible = "samsung,exynos4210-pd";
 		reg = <0x10023CA0 0x20>;
-- 
1.8.0

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