Add a device node for the System Controller, with subnodes that
represent the hardware power area hierarchy.
Hook up the Cortex-A7 CPU cores and the Cortex-A7 L2 cache/SCU to their
respective PM domains.
Signed-off-by: Geert Uytterhoeven <geert+rene...@glider.be>
---
v2:
- Change one-line summary prefix to match current arm-soc practices,
- Update compatible values.
---
arch/arm/boot/dts/r8a7794.dtsi | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7794.dtsi b/arch/arm/boot/dts/r8a7794.dtsi
index 21a02df3609b24aa..d0fc735571242fd1 100644
--- a/arch/arm/boot/dts/r8a7794.dtsi
+++ b/arch/arm/boot/dts/r8a7794.dtsi
@@ -40,6 +40,7 @@
compatible = "arm,cortex-a7";
reg = <0>;
clock-frequency = <1000000000>;
+ power-domains = <&pd_ca7_cpu0>;
next-level-cache = <&L2_CA7>;
};
@@ -48,12 +49,14 @@
compatible = "arm,cortex-a7";
reg = <1>;
clock-frequency = <1000000000>;
+ power-domains = <&pd_ca7_cpu1>;
next-level-cache = <&L2_CA7>;
};
};
L2_CA7: cache-controller@1 {
compatible = "cache";
+ power-domains = <&pd_ca7_scu>;
cache-unified;
cache-level = <2>;
};
@@ -1152,6 +1155,43 @@
};
};
+ sysc: system-controller@e6180000 {
+ compatible = "renesas,r8a7794-sysc", "renesas,rcar-gen2-sysc";
+ reg = <0 0xe6180000 0 0x0200>;
+
+ pm-domains {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ pd_ca7_scu: scu@21 {
+ reg = <21 0x100>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+ #power-domain-cells = <0>;
+
+ pd_ca7_cpu0: cpu@5 {
+ reg = <5 0x1c0>;
+ #power-domain-cells = <0>;
+ };
+
+ pd_ca7_cpu1: cpu@6 {
+ reg = <6 0x1c0>;
+ #power-domain-cells = <0>;
+ };
+ };
+
+ pd_sh: sh@16 {
+ reg = <16 0x80>;
+ #power-domain-cells = <0>;
+ };
+
+ pd_sgx: sgx@20 {
+ reg = <20 0xc0>;
+ #power-domain-cells = <0>;
+ };
+ };
+ };
+
ipmmu_sy0: mmu@e6280000 {
compatible = "renesas,ipmmu-r8a7794", "renesas,ipmmu-vmsa";
reg = <0 0xe6280000 0 0x1000>;
--
1.9.1
