From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Geert Uytterhoeven <geert+renesas@glider.be>,
Sasha Levin <sashal@kernel.org>,
linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH AUTOSEL 4.9 070/141] ARM: dts: r8a7779: Add device node for ARM global timer
Date: Fri, 14 Feb 2020 11:20:10 -0500 [thread overview]
Message-ID: <20200214162122.19794-70-sashal@kernel.org> (raw)
In-Reply-To: <20200214162122.19794-1-sashal@kernel.org>
From: Geert Uytterhoeven <geert+renesas@glider.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@glider.be>
Link: https://lore.kernel.org/r/20191211135222.26770-4-geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.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 b9bbcce69dfbd..6c6d4893e92d4 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -67,6 +67,14 @@
<0xf0000100 0x100>;
};
+ timer@f0000200 {
+ 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@f0000600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0xf0000600 0x20>;
--
2.20.1
next prev parent reply other threads:[~2020-02-14 16:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200214162122.19794-1-sashal@kernel.org>
2020-02-14 16:19 ` [PATCH AUTOSEL 4.9 052/141] arm: dts: allwinner: H3: Add PMU node Sasha Levin
2020-02-14 16:20 ` Sasha Levin [this message]
2020-02-14 16:20 ` [PATCH AUTOSEL 4.9 085/141] ARM: dts: at91: sama5d3: fix maximum peripheral clock rates Sasha Levin
2020-02-14 16:20 ` [PATCH AUTOSEL 4.9 086/141] ARM: dts: at91: sama5d3: define clock rate range for tcb1 Sasha Levin
2020-02-14 16:20 ` [PATCH AUTOSEL 4.9 096/141] ARC: [plat-axs10x]: Add missing multicast filter number to GMAC node Sasha Levin
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