linux-kernel - [PATCH] arm64: dts: imx8mp: Add system counter timer node

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Message-Id: <1582174232-14082-1-git-send-email-Anson.Huang@nxp.com>
Date:   Thu, 20 Feb 2020 12:50:32 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH] arm64: dts: imx8mp: Add system counter timer node

System counter timer is necessary as broadcast timer for cpu-idle,
add support for it.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 61cf373..71b0c8f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -358,6 +358,14 @@
 				#pwm-cells = <2>;
 				status = "disabled";
 			};
+
+			system_counter: timer@...a0000 {
+				compatible = "nxp,sysctr-timer";
+				reg = <0x306a0000 0x20000>;
+				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&osc_24m>;
+				clock-names = "per";
+			};
 		};
 
 		aips3: bus@...00000 {
-- 
2.7.4