linux-kernel - [PATCH v2 9/9] ARM: dts: mt8127: enable basic SMP bringup for mt8127

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Message-ID: <1431763110-443-10-git-send-email-yingjoe.chen@mediatek.com>
Date:	Sat, 16 May 2015 15:58:30 +0800
From:	Yingjoe Chen <yingjoe.chen@...iatek.com>
To:	Mark Rutland <mark.rutland@....com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Russell King <linux@....linux.org.uk>
CC:	Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
	<devicetree@...r.kernel.org>, Stephen Boyd <sboyd@...eaurora.org>,
	Pawel Moll <pawel.moll@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	<linux-kernel@...r.kernel.org>,
	Marc Carino <marc.ceeeee@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	<linux-mediatek@...ts.infradead.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>,
	<srv_heupstream@...iatek.com>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v2 9/9] ARM: dts: mt8127: enable basic SMP bringup for mt8127

Add arch timer node to enable arch-timer support. MT8127 firmware
doesn't correctly setup arch-timer frequency and CNTVOFF, add
properties to workaround this.

This also set cpu enable-method to enable SMP.

Signed-off-by: Yingjoe Chen <yingjoe.chen@...iatek.com>
---
 arch/arm/boot/dts/mt8127.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/mt8127.dtsi b/arch/arm/boot/dts/mt8127.dtsi
index aaa7862..7c2090d 100644
--- a/arch/arm/boot/dts/mt8127.dtsi
+++ b/arch/arm/boot/dts/mt8127.dtsi
@@ -23,6 +23,7 @@
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		enable-method = "mediatek,mt81xx-tz-smp";
 
 		cpu@0 {
 			device_type = "cpu";
@@ -72,6 +73,21 @@
                 };
 	};
 
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
+					  IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
+					  IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) |
+					  IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) |
+					  IRQ_TYPE_LEVEL_LOW)>;
+		clock-frequency = <13000000>;
+		arm,cpu-registers-not-fw-configured;
+	};
+
 	soc {
 		#address-cells = <2>;
 		#size-cells = <2>;
-- 
1.8.1.1.dirty

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