linux-kernel - [PATCH v2 5/7] ARM: dts: imx6ul: add ARM architected timer

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Message-Id: <20180110210453.19264-5-stefan@agner.ch>
Date:   Wed, 10 Jan 2018 22:04:51 +0100
From:   Stefan Agner <stefan@...er.ch>
To:     shawnguo@...nel.org, kernel@...gutronix.de
Cc:     fabio.estevam@....com, robh+dt@...nel.org, mark.rutland@....com,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Stefan Agner <stefan@...er.ch>
Subject: [PATCH v2 5/7] ARM: dts: imx6ul: add ARM architected timer

Add per-core ARM architected timer. Unfortunately bootloaders (U-Boot)
currently do not make the necessary initialization. Also specifing the
clock manually using the clock-frequency property seems not to help.
Therefor leave the timer disabled by default for now.

Signed-off-by: Stefan Agner <stefan@...er.ch>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 arch/arm/boot/dts/imx6ul.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
index 993fbdbdd506..4d76923e8f44 100644
--- a/arch/arm/boot/dts/imx6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul.dtsi
@@ -110,6 +110,16 @@
 		      <0x00a06000 0x2000>;
 	};
 
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupt-parent = <&intc>;
+		status = "disabled";
+	};
+
 	ckil: clock-cli {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
-- 
2.15.1