Add a device node for the System Controller.
Hook up the Cortex-A15 CPU cores and the Cortex-A15 L2 cache/SCU to
their respective PM Domains.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
v6:
- Add Acked-by,
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/r8a7791.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index 565c270e549d2bb6..b8657f4b45efdfe5 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -13,6 +13,7 @@
#include <dt-bindings/clock/r8a7791-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/power/r8a7791-sysc.h>
/ {
compatible = "renesas,r8a7791";
@@ -51,6 +52,7 @@
voltage-tolerance = <1>; /* 1% */
clocks = <&cpg_clocks R8A7791_CLK_Z>;
clock-latency = <300000>; /* 300 us */
+ power-domains = <&sysc R8A7791_PD_CA15_CPU0>;
next-level-cache = <&L2_CA15>;
/* kHz - uV - OPPs unknown yet */
@@ -67,6 +69,7 @@
compatible = "arm,cortex-a15";
reg = <1>;
clock-frequency = <1500000000>;
+ power-domains = <&sysc R8A7791_PD_CA15_CPU1>;
next-level-cache = <&L2_CA15>;
};
};
@@ -92,6 +95,7 @@
L2_CA15: cache-controller@0 {
compatible = "cache";
+ power-domains = <&sysc R8A7791_PD_CA15_SCU>;
cache-unified;
cache-level = <2>;
};
@@ -1463,6 +1467,12 @@
};
};
+ sysc: system-controller@e6180000 {
+ compatible = "renesas,r8a7791-sysc";
+ reg = <0 0xe6180000 0 0x0200>;
+ #power-domain-cells = <1>;
+ };
+
qspi: spi@e6b10000 {
compatible = "renesas,qspi-r8a7791", "renesas,qspi";
reg = <0 0xe6b10000 0 0x2c>;
--
1.9.1
