[PATCH v2] ARM: dts: add CPU nodes for Exynos4 SoCs

[Bartlomiej Zolnierkiewicz]

Recent patch by Tomasz Figa ("irqchip: gic: Fix core ID calculation
when topology is read from DT") fixed GIC driver to filter cluster ID
from values returned by cpu_logical_map() for SoCs having registers
mapped without per-CPU banking making it is possible to add CPU nodes
for Exynos4 SoCs.  In case of Exynos SoCs these CPU nodes are also
required by future changes adding initialization of cpuidle states in
Exynos cpuidle driver through DT.

Tested on Origen board (Exynos4210 SoC) and Trats2 (Exynos4412 SoC).

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie at samsung.com>
---
Based on next-20140717 branch of linux-next tree +
- [PATCH 2/6] ARM: EXYNOS: Fix core ID used by platsmp and hotplug code
  http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg32811.html
- [PATCH] irqchip: gic: Fix core ID calculation when topology is read from DT
  http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg34277.html

v2:
- match the unit-address with the reg

 arch/arm/boot/dts/exynos4210.dtsi | 17 +++++++++++++++++
 arch/arm/boot/dts/exynos4212.dtsi | 17 +++++++++++++++++
 arch/arm/boot/dts/exynos4412.dtsi | 29 +++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index ee3001f..bc2b444 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -31,6 +31,23 @@
 		pinctrl2 = &pinctrl_2;
 	};
 
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu at 900 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0x900>;
+		};
+
+		cpu at 901 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0x901>;
+		};
+	};
+
 	sysram at 02020000 {
 		compatible = "mmio-sram";
 		reg = <0x02020000 0x20000>;
diff --git a/arch/arm/boot/dts/exynos4212.dtsi b/arch/arm/boot/dts/exynos4212.dtsi
index 3c00e6e..dd0a43e 100644
--- a/arch/arm/boot/dts/exynos4212.dtsi
+++ b/arch/arm/boot/dts/exynos4212.dtsi
@@ -22,6 +22,23 @@
 / {
 	compatible = "samsung,exynos4212", "samsung,exynos4";
 
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu at A00 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0xA00>;
+		};
+
+		cpu at A01 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0xA01>;
+		};
+	};
+
 	combiner: interrupt-controller at 10440000 {
 		samsung,combiner-nr = <18>;
 	};
diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi
index c42a3e1..435a722 100644
--- a/arch/arm/boot/dts/exynos4412.dtsi
+++ b/arch/arm/boot/dts/exynos4412.dtsi
@@ -22,6 +22,35 @@
 / {
 	compatible = "samsung,exynos4412", "samsung,exynos4";
 
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu at A00 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0xA00>;
+		};
+
+		cpu at A01 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0xA01>;
+		};
+
+		cpu at A02 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0xA02>;
+		};
+
+		cpu at A03 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0xA03>;
+		};
+	};
+
 	combiner: interrupt-controller at 10440000 {
 		samsung,combiner-nr = <20>;
 	};
-- 
1.8.2.3