Add a device node for the System Controller.
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+renesas@xxxxxxxxx>
---
v5:
- Remove "power-domains" property again from the sysc node, as the
System Controller itself is not part of the Clock Domain,
v4:
- Add "power-domains" property to the sysc node, to refer to the SoC's
Clock Domain,
v3:
- Drop power area hiearchy from DT,
- Switch to "#power-domain-cells = <1>",
- Drop fallback compatibility strings,
v2:
- Change one-line summary prefix to match current arm-soc practices,
- Update compatible values.
---
arch/arm/boot/dts/r8a7794.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7794.dtsi b/arch/arm/boot/dts/r8a7794.dtsi
index 29a0a001f1b21a9e..99c41c9099b0c233 100644
--- a/arch/arm/boot/dts/r8a7794.dtsi
+++ b/arch/arm/boot/dts/r8a7794.dtsi
@@ -12,6 +12,7 @@
#include <dt-bindings/clock/r8a7794-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/power/r8a7794-sysc.h>
/ {
compatible = "renesas,r8a7794";
@@ -42,6 +43,7 @@
compatible = "arm,cortex-a7";
reg = <0>;
clock-frequency = <1000000000>;
+ power-domains = <&sysc R8A7794_PD_CA7_CPU0>;
next-level-cache = <&L2_CA7>;
};
@@ -50,12 +52,14 @@
compatible = "arm,cortex-a7";
reg = <1>;
clock-frequency = <1000000000>;
+ power-domains = <&sysc R8A7794_PD_CA7_CPU1>;
next-level-cache = <&L2_CA7>;
};
};
L2_CA7: cache-controller@1 {
compatible = "cache";
+ power-domains = <&sysc R8A7794_PD_CA7_SCU>;
cache-unified;
cache-level = <2>;
};
@@ -1244,6 +1248,12 @@
};
};
+ sysc: system-controller@e6180000 {
+ compatible = "renesas,r8a7794-sysc";
+ reg = <0 0xe6180000 0 0x0200>;
+ #power-domain-cells = <1>;
+ };
+
ipmmu_sy0: mmu@e6280000 {
compatible = "renesas,ipmmu-r8a7794", "renesas,ipmmu-vmsa";
reg = <0 0xe6280000 0 0x1000>;
--
1.9.1
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