[PATCH 4/5] ARC: AXS103: DTS: Set cpu frequency explicitly via dts

[Eugeniy Paltsev]

Set cpu frequency explicitly via "cpu-freq" param in cpu 0 node
in device tree.

We add "cpu-freq" only to cpu 0 as all cpus are clocking from same
clock source (same pll in our case).

We override cpus node in skeleton as we don't need this change for
nsim.

Signed-off-by: Eugeniy Paltsev <eugeniy.palt...@synopsys.com>
---
 arch/arc/boot/dts/axc003.dtsi     | 13 +++++++++++++
 arch/arc/boot/dts/axc003_idu.dtsi | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
index dca7e39..7c7411c 100644
--- a/arch/arc/boot/dts/axc003.dtsi
+++ b/arch/arc/boot/dts/axc003.dtsi
@@ -17,6 +17,19 @@
        #address-cells = <2>;
        #size-cells = <2>;
 
+       cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               cpu@0 {
+                       device_type = "cpu";
+                       compatible = "snps,archs38";
+                       reg = <0>;
+                       cpu-freq = <100000000>;
+                       clocks = <&core_clk>;
+               };
+       };
+
        cpu_card {
                compatible = "simple-bus";
                #address-cells = <1>;
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi 
b/arch/arc/boot/dts/axc003_idu.dtsi
index 5b56bef..44bc01e 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -17,6 +17,41 @@
        #address-cells = <2>;
        #size-cells = <2>;
 
+       cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               /*
+                * "cpu-freq" was added only to cpu 0 as all cpus are clocking
+                * from same clock source (same pll (core_clk) in our case).
+                */
+               cpu@0 {
+                       device_type = "cpu";
+                       compatible = "snps,archs38";
+                       reg = <0>;
+                       cpu-freq = <100000000>;
+                       clocks = <&core_clk>;
+               };
+               cpu@1 {
+                       device_type = "cpu";
+                       compatible = "snps,archs38";
+                       reg = <1>;
+                       clocks = <&core_clk>;
+               };
+               cpu@2 {
+                       device_type = "cpu";
+                       compatible = "snps,archs38";
+                       reg = <2>;
+                       clocks = <&core_clk>;
+               };
+               cpu@3 {
+                       device_type = "cpu";
+                       compatible = "snps,archs38";
+                       reg = <3>;
+                       clocks = <&core_clk>;
+               };
+       };
+
        cpu_card {
                compatible = "simple-bus";
                #address-cells = <1>;
-- 
2.9.3


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