2024-04-25 15:48:37

by Patrick Delaunay

Subject: [PATCH] arm64: dts: st: add power domain on stm32mp25

Add power domains on STM32MP25x SoC for supported low power modes:
- CPU_PD0/1: domain for idle of each core Cortex A35 (CStop)
- CLUSTER_PD: D1 domain with Stop1 and LP-Stop1 modes support when
the Cortex A35 cluster and each device assigned to CPU1=CA35
are deactivated
- RET_PD: D1 domain retention (VDDCore is reduced) to support
the LPLV-Stop1 mode

Signed-off-by: Patrick Delaunay <[email protected]>
---

arch/arm64/boot/dts/st/stm32mp251.dtsi | 16 ++++++++++++++++
arch/arm64/boot/dts/st/stm32mp253.dtsi | 9 +++++++++
2 files changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index af1444bf9442..4beb0a0bef4f 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -18,6 +18,8 @@ cpu0: cpu@0 {
device_type = "cpu";
reg = <0>;
enable-method = "psci";
+ power-domains = <&CPU_PD0>;
+ power-domain-names = "psci";
};
};

@@ -104,6 +106,20 @@ intc: interrupt-controller@4ac00000 {
psci {
compatible = "arm,psci-1.0";
method = "smc";
+
+ CPU_PD0: power-domain-cpu0 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ };
+
+ CLUSTER_PD: power-domain-cluster {
+ #power-domain-cells = <0>;
+ power-domains = <&RET_PD>;
+ };
+
+ RET_PD: power-domain-retention {
+ #power-domain-cells = <0>;
+ };
};

timer {
diff --git a/arch/arm64/boot/dts/st/stm32mp253.dtsi b/arch/arm64/boot/dts/st/stm32mp253.dtsi
index af48e82efe8a..79c02ef2e51e 100644
--- a/arch/arm64/boot/dts/st/stm32mp253.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp253.dtsi
@@ -12,6 +12,8 @@ cpu1: cpu@1 {
device_type = "cpu";
reg = <1>;
enable-method = "psci";
+ power-domains = <&CPU_PD1>;
+ power-domain-names = "psci";
};
};

@@ -20,4 +22,11 @@ arm-pmu {
<GIC_SPI 369 IRQ_TYPE_LEVEL_HIGH>;
interrupt-affinity = <&cpu0>, <&cpu1>;
};
+
+ psci {
+ CPU_PD1: power-domain-cpu1 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_PD>;
+ };
+ };
};
--
2.25.1

2024-06-05 08:09:38

by Alexandre TORGUE

Subject: Re: [PATCH] arm64: dts: st: add power domain on stm32mp25

Hello Patrick

On 4/25/24 17:45, Patrick Delaunay wrote:
> Add power domains on STM32MP25x SoC for supported low power modes:
> - CPU_PD0/1: domain for idle of each core Cortex A35 (CStop)
> - CLUSTER_PD: D1 domain with Stop1 and LP-Stop1 modes support when
> the Cortex A35 cluster and each device assigned to CPU1=CA35
> are deactivated
> - RET_PD: D1 domain retention (VDDCore is reduced) to support
> the LPLV-Stop1 mode
>
> Signed-off-by: Patrick Delaunay <[email protected]>
> ---
>

Applied on stm32-next.

Thanks!!
Alex


> arch/arm64/boot/dts/st/stm32mp251.dtsi | 16 ++++++++++++++++
> arch/arm64/boot/dts/st/stm32mp253.dtsi | 9 +++++++++
> 2 files changed, 25 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
> index af1444bf9442..4beb0a0bef4f 100644
> --- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
> +++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
> @@ -18,6 +18,8 @@ cpu0: cpu@0 {
> device_type = "cpu";
> reg = <0>;
> enable-method = "psci";
> + power-domains = <&CPU_PD0>;
> + power-domain-names = "psci";
> };
> };
>
> @@ -104,6 +106,20 @@ intc: interrupt-controller@4ac00000 {
> psci {
> compatible = "arm,psci-1.0";
> method = "smc";
> +
> + CPU_PD0: power-domain-cpu0 {
> + #power-domain-cells = <0>;
> + power-domains = <&CLUSTER_PD>;
> + };
> +
> + CLUSTER_PD: power-domain-cluster {
> + #power-domain-cells = <0>;
> + power-domains = <&RET_PD>;
> + };
> +
> + RET_PD: power-domain-retention {
> + #power-domain-cells = <0>;
> + };
> };
>
> timer {
> diff --git a/arch/arm64/boot/dts/st/stm32mp253.dtsi b/arch/arm64/boot/dts/st/stm32mp253.dtsi
> index af48e82efe8a..79c02ef2e51e 100644
> --- a/arch/arm64/boot/dts/st/stm32mp253.dtsi
> +++ b/arch/arm64/boot/dts/st/stm32mp253.dtsi
> @@ -12,6 +12,8 @@ cpu1: cpu@1 {
> device_type = "cpu";
> reg = <1>;
> enable-method = "psci";
> + power-domains = <&CPU_PD1>;
> + power-domain-names = "psci";
> };
> };
>
> @@ -20,4 +22,11 @@ arm-pmu {
> <GIC_SPI 369 IRQ_TYPE_LEVEL_HIGH>;
> interrupt-affinity = <&cpu0>, <&cpu1>;
> };
> +
> + psci {
> + CPU_PD1: power-domain-cpu1 {
> + #power-domain-cells = <0>;
> + power-domains = <&CLUSTER_PD>;
> + };
> + };
> };