From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-renesas-soc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/4] ARM: dts: sh73a0: Add device node for ARM global timer
Date: Wed, 11 Dec 2019 14:52:20 +0100 [thread overview]
Message-ID: <20191211135222.26770-3-geert+renesas@glider.be> (raw)
In-Reply-To: <20191211135222.26770-1-geert+renesas@glider.be>
Add a device node for the global timer, which is part of the Cortex-A9
MPCore.
The global timer can serve as an accurate (3 ns) clock source for
scheduling and delay loops.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
- No changes.
---
arch/arm/boot/dts/sh73a0.dtsi | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/boot/dts/sh73a0.dtsi b/arch/arm/boot/dts/sh73a0.dtsi
index 9093b3b9fc0cbd1d..7efe33c4d041a524 100644
--- a/arch/arm/boot/dts/sh73a0.dtsi
+++ b/arch/arm/boot/dts/sh73a0.dtsi
@@ -39,6 +39,13 @@
};
};
+ timer@f0000200 {
+ compatible = "arm,cortex-a9-global-timer";
+ reg = <0xf0000200 0x100>;
+ interrupts = <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_EDGE_RISING)>;
+ clocks = <&periph_clk>;
+ };
+
timer@f0000600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0xf0000600 0x20>;
--
2.17.1
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next prev parent reply other threads:[~2019-12-11 13:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 13:52 [PATCH v2 0/4] ARM: shmobile: Enable ARM_GLOBAL_TIMER on Cortex-A9 MPCore Geert Uytterhoeven
2019-12-11 13:52 ` [PATCH v2 1/4] ARM: dts: sh73a0: Rename twd clock to periph clock Geert Uytterhoeven
2019-12-11 13:52 ` Geert Uytterhoeven [this message]
2019-12-11 13:52 ` [PATCH v2 3/4] ARM: dts: r8a7779: Add device node for ARM global timer Geert Uytterhoeven
2019-12-11 13:52 ` [PATCH v2 4/4] ARM: shmobile: Enable ARM_GLOBAL_TIMER on Cortex-A9 MPCore SoCs Geert Uytterhoeven
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