linux-kernel - [PATCH v4 5/5] ARM: dts: mt8127: enable basic SMP bringup for mt8127

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Message-ID: <1443109140-5406-6-git-send-email-yingjoe.chen@mediatek.com>
Date:	Thu, 24 Sep 2015 23:39:00 +0800
From:	Yingjoe Chen <yingjoe.chen@...iatek.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Matthias Brugger <matthias.bgg@...il.com>
CC:	<devicetree@...r.kernel.org>, Arnd Bergmann <arnd@...db.de>,
	Stephen Boyd <sboyd@...eaurora.org>,
	<linux-kernel@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>,
	<linux-mediatek@...ts.infradead.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	Olof Johansson <olof@...om.net>, <srv_heupstream@...iatek.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>
Subject: [PATCH v4 5/5] 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 | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/boot/dts/mt8127.dtsi b/arch/arm/boot/dts/mt8127.dtsi
index ca3402e..50652fd 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";
@@ -47,6 +48,17 @@
 
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		trustzone-bootinfo: trustzone-bootinfo@...02000 {
+			compatible = "mediatek,trustzone-bootinfo";
+			reg = <0 0x80002000 0 0x1000>;
+		};
+	};
+
 	clocks {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -72,6 +84,21 @@
                 };
 	};
 
+	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>;
-- 
1.9.1

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