linux-kernel - [PATCH] arm64: dts: mediatek: mt6795: Add CPUX system timer node

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Message-Id: <20220729093536.27623-1-angelogioacchino.delregno@collabora.com>
Date:   Fri, 29 Jul 2022 11:35:36 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     matthias.bgg@...il.com
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH] arm64: dts: mediatek: mt6795: Add CPUX system timer node

Add a node for mt6795-systimer: this is necessary to start the
System Timer(s) for all cores, finally making CNTVCT_EL0 usable.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 arch/arm64/boot/dts/mediatek/mt6795.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt6795.dtsi b/arch/arm64/boot/dts/mediatek/mt6795.dtsi
index d4842b4a4eb7..46f0e54be766 100644
--- a/arch/arm64/boot/dts/mediatek/mt6795.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt6795.dtsi
@@ -230,6 +230,14 @@ sysirq: intpol-controller@...00620 {
 			reg = <0 0x10200620 0 0x20>;
 		};
 
+		systimer: timer@...00670 {
+			compatible = "mediatek,mt6795-systimer";
+			reg = <0 0x10200670 0 0x10>;
+			interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&system_clk>;
+			clock-names = "clk13m";
+		};
+
 		gic: interrupt-controller@...21000 {
 			compatible = "arm,gic-400";
 			#interrupt-cells = <3>;
-- 
2.35.1