Add arch timer node to enable arch-timer support. MT8135 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.c...@mediatek.com>
---
 arch/arm/boot/dts/mt8135.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/mt8135.dtsi b/arch/arm/boot/dts/mt8135.dtsi
index 0aba9eb..0264d2e 100644
--- a/arch/arm/boot/dts/mt8135.dtsi
+++ b/arch/arm/boot/dts/mt8135.dtsi
@@ -44,6 +44,7 @@
        cpus {
                #address-cells = <1>;
                #size-cells = <0>;
+               enable-method = "mediatek,mt81xx-tz-smp";
 
                cpu0: cpu@0 {
                        device_type = "cpu";
@@ -96,6 +97,21 @@
 
        };
 
+       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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