* [PATCH] arm64: dts: rockchip: Add basic DVFS support for RK3368
@ 2017-08-18 7:50 Romain Perier
2017-08-18 8:20 ` Heiko Stuebner
0 siblings, 1 reply; 3+ messages in thread
From: Romain Perier @ 2017-08-18 7:50 UTC (permalink / raw)
To: linux-arm-kernel
This adds and enable the operating points that have been tested and are
currently supported by the SoC.
Signed-off-by: Romain Perier <romain.perier@collabora.com>
---
Note: RK3288 is using operating-points binding v1, while RK3399 is using
binding v2. I can send another iteration for switching to binding v2,
if required.
arch/arm64/boot/dts/rockchip/rk3368.dtsi | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index 6d5dc0587e59..f2ae3bf9377a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
@@ -113,8 +113,18 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x0>;
enable-method = "psci";
+ clocks = <&cru ARMCLKL>;
+ operating-points = <
+ /* KHz uV */
+ 312000 950000
+ 408000 950000
+ 600000 950000
+ 816000 1025000
+ 1008000 1125000
+ >;
#cooling-cells = <2>; /* min followed by max */
+ clock-latency = <40000>;
};
cpu_l1: cpu at 1 {
@@ -122,6 +132,7 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x1>;
enable-method = "psci";
+ clocks = <&cru ARMCLKL>;
};
cpu_l2: cpu at 2 {
@@ -129,6 +140,7 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x2>;
enable-method = "psci";
+ clocks = <&cru ARMCLKL>;
};
cpu_l3: cpu at 3 {
@@ -136,6 +148,7 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x3>;
enable-method = "psci";
+ clocks = <&cru ARMCLKL>;
};
cpu_b0: cpu at 100 {
@@ -143,8 +156,18 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x100>;
enable-method = "psci";
+ clocks = <&cru ARMCLKB>;
+ operating-points = <
+ /* KHz uV */
+ 312000 950000
+ 408000 950000
+ 600000 950000
+ 816000 975000
+ 1008000 1050000
+ >;
#cooling-cells = <2>; /* min followed by max */
+ clock-latency = <40000>;
};
cpu_b1: cpu at 101 {
@@ -152,6 +175,7 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x101>;
enable-method = "psci";
+ clocks = <&cru ARMCLKB>;
};
cpu_b2: cpu at 102 {
@@ -159,6 +183,7 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x102>;
enable-method = "psci";
+ clocks = <&cru ARMCLKB>;
};
cpu_b3: cpu at 103 {
@@ -166,9 +191,11 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x103>;
enable-method = "psci";
+ clocks = <&cru ARMCLKB>;
};
};
+
amba {
compatible = "simple-bus";
#address-cells = <2>;
--
2.11.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH] arm64: dts: rockchip: Add basic DVFS support for RK3368
2017-08-18 7:50 [PATCH] arm64: dts: rockchip: Add basic DVFS support for RK3368 Romain Perier
@ 2017-08-18 8:20 ` Heiko Stuebner
2017-08-18 9:40 ` Romain Perier
0 siblings, 1 reply; 3+ messages in thread
From: Heiko Stuebner @ 2017-08-18 8:20 UTC (permalink / raw)
To: linux-arm-kernel
Am Freitag, 18. August 2017, 09:50:53 CEST schrieb Romain Perier:
> This adds and enable the operating points that have been tested and are
> currently supported by the SoC.
>
> Signed-off-by: Romain Perier <romain.perier@collabora.com>
> ---
>
> Note: RK3288 is using operating-points binding v1, while RK3399 is using
> binding v2. I can send another iteration for switching to binding v2,
> if required.
Yes please use v2 for _new_ operating points :-) .
One more thing down below.
>
> arch/arm64/boot/dts/rockchip/rk3368.dtsi | 27 +++++++++++++++++++++++++++
> 1 file changed, 27 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
> index 6d5dc0587e59..f2ae3bf9377a 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
> @@ -113,8 +113,18 @@
> compatible = "arm,cortex-a53", "arm,armv8";
> reg = <0x0 0x0>;
> enable-method = "psci";
> + clocks = <&cru ARMCLKL>;
> + operating-points = <
> + /* KHz uV */
> + 312000 950000
> + 408000 950000
> + 600000 950000
> + 816000 1025000
> + 1008000 1125000
> + >;
>
> #cooling-cells = <2>; /* min followed by max */
> + clock-latency = <40000>;
> };
>
> cpu_l1: cpu at 1 {
> @@ -122,6 +132,7 @@
> compatible = "arm,cortex-a53", "arm,armv8";
> reg = <0x0 0x1>;
> enable-method = "psci";
> + clocks = <&cru ARMCLKL>;
> };
>
> cpu_l2: cpu at 2 {
> @@ -129,6 +140,7 @@
> compatible = "arm,cortex-a53", "arm,armv8";
> reg = <0x0 0x2>;
> enable-method = "psci";
> + clocks = <&cru ARMCLKL>;
> };
>
> cpu_l3: cpu at 3 {
> @@ -136,6 +148,7 @@
> compatible = "arm,cortex-a53", "arm,armv8";
> reg = <0x0 0x3>;
> enable-method = "psci";
> + clocks = <&cru ARMCLKL>;
> };
>
> cpu_b0: cpu at 100 {
> @@ -143,8 +156,18 @@
> compatible = "arm,cortex-a53", "arm,armv8";
> reg = <0x0 0x100>;
> enable-method = "psci";
> + clocks = <&cru ARMCLKB>;
> + operating-points = <
> + /* KHz uV */
> + 312000 950000
> + 408000 950000
> + 600000 950000
> + 816000 975000
> + 1008000 1050000
> + >;
>
> #cooling-cells = <2>; /* min followed by max */
> + clock-latency = <40000>;
> };
>
> cpu_b1: cpu at 101 {
> @@ -152,6 +175,7 @@
> compatible = "arm,cortex-a53", "arm,armv8";
> reg = <0x0 0x101>;
> enable-method = "psci";
> + clocks = <&cru ARMCLKB>;
> };
>
> cpu_b2: cpu at 102 {
> @@ -159,6 +183,7 @@
> compatible = "arm,cortex-a53", "arm,armv8";
> reg = <0x0 0x102>;
> enable-method = "psci";
> + clocks = <&cru ARMCLKB>;
> };
>
> cpu_b3: cpu at 103 {
> @@ -166,9 +191,11 @@
> compatible = "arm,cortex-a53", "arm,armv8";
> reg = <0x0 0x103>;
> enable-method = "psci";
> + clocks = <&cru ARMCLKB>;
> };
> };
>
> +
unnecessary empty line
> amba {
> compatible = "simple-bus";
> #address-cells = <2>;
>
Heiko
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] arm64: dts: rockchip: Add basic DVFS support for RK3368
2017-08-18 8:20 ` Heiko Stuebner
@ 2017-08-18 9:40 ` Romain Perier
0 siblings, 0 replies; 3+ messages in thread
From: Romain Perier @ 2017-08-18 9:40 UTC (permalink / raw)
To: linux-arm-kernel
Hello,
Le 18/08/2017 ? 10:20, Heiko Stuebner a ?crit :
> Am Freitag, 18. August 2017, 09:50:53 CEST schrieb Romain Perier:
>> This adds and enable the operating points that have been tested and are
>> currently supported by the SoC.
>>
>> Signed-off-by: Romain Perier <romain.perier@collabora.com>
>> ---
>>
>> Note: RK3288 is using operating-points binding v1, while RK3399 is using
>> binding v2. I can send another iteration for switching to binding v2,
>> if required.
> Yes please use v2 for _new_ operating points :-) .
>
> One more thing down below.
Ack, will do.
Thanks,
Romain
^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-08-18 7:50 [PATCH] arm64: dts: rockchip: Add basic DVFS support for RK3368 Romain Perier
2017-08-18 8:20 ` Heiko Stuebner
2017-08-18 9:40 ` Romain Perier
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