linux-kernel - [PATCH 4.4 047/113] ARM: dts: r8a7779: Add device node for ARM global timer

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Message-Id: <20200227132219.272417587@linuxfoundation.org>
Date:   Thu, 27 Feb 2020 14:36:03 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 047/113] ARM: dts: r8a7779: Add device node for ARM global timer

From: Geert Uytterhoeven <geert+renesas@...der.be>

[ Upstream commit 8443ffd1bbd5be74e9b12db234746d12e8ea93e2 ]

Add a device node for the global timer, which is part of the Cortex-A9
MPCore.

The global timer can serve as an accurate (4 ns) clock source for
scheduling and delay loops.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Link: https://lore.kernel.org/r/20191211135222.26770-4-geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/r8a7779.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index 6afa909865b52..8636e2321ab71 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -63,6 +63,14 @@
 		      <0xf0000100 0x100>;
 	};
 
+	timer@...00200 {
+		compatible = "arm,cortex-a9-global-timer";
+		reg = <0xf0000200 0x100>;
+		interrupts = <GIC_PPI 11
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>;
+		clocks = <&cpg_clocks R8A7779_CLK_ZS>;
+	};
+
 	timer@...00600 {
 		compatible = "arm,cortex-a9-twd-timer";
 		reg = <0xf0000600 0x20>;
-- 
2.20.1