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ARM: dts: rockchip: Switch to operating-points-v2 for RK3128's CPU

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This will allow frequency-scaling for the cpu-cores.
Operating frequencies and voltages have been taken from Rockchip's
downstream kernel.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20230829214004.314932-10-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Alex Bee 2023-08-29 23:40:09 +02:00 committed by Heiko Stuebner
parent da8b973957
commit c96b13d7c0
1 changed files with 39 additions and 4 deletions
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43
arch/arm/boot/dts/rockchip/rk3128.dtsi
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@ -36,10 +36,7 @@ cpu0: cpu@f00 {
clock-latency = <40000>;
clocks = <&cru ARMCLK>;
resets = <&cru SRST_CORE0>;
operating-points = <
/* KHz uV */
816000 1000000
>;
operating-points-v2 = <&cpu_opp_table>;
#cooling-cells = <2>; /* min followed by max */
};
@ -48,6 +45,7 @@ cpu1: cpu@f01 {
compatible = "arm,cortex-a7";
reg = <0xf01>;
resets = <&cru SRST_CORE1>;
operating-points-v2 = <&cpu_opp_table>;
};
cpu2: cpu@f02 {
@ -55,6 +53,7 @@ cpu2: cpu@f02 {
compatible = "arm,cortex-a7";
reg = <0xf02>;
resets = <&cru SRST_CORE2>;
operating-points-v2 = <&cpu_opp_table>;
};
cpu3: cpu@f03 {
@ -62,6 +61,42 @@ cpu3: cpu@f03 {
compatible = "arm,cortex-a7";
reg = <0xf03>;
resets = <&cru SRST_CORE3>;
operating-points-v2 = <&cpu_opp_table>;
};
};
cpu_opp_table: opp-table-0 {
compatible = "operating-points-v2";
opp-shared;
opp-216000000 {
opp-hz = /bits/ 64 <216000000>;
opp-microvolt = <950000 950000 1325000>;
};
opp-408000000 {
opp-hz = /bits/ 64 <408000000>;
opp-microvolt = <950000 950000 1325000>;
};
opp-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <950000 950000 1325000>;
};
opp-696000000 {
opp-hz = /bits/ 64 <696000000>;
opp-microvolt = <975000 975000 1325000>;
};
opp-816000000 {
opp-hz = /bits/ 64 <816000000>;
opp-microvolt = <1075000 1075000 1325000>;
opp-suspend;
};
opp-1008000000 {
opp-hz = /bits/ 64 <1008000000>;
opp-microvolt = <1200000 1200000 1325000>;
};
opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <1325000 1325000 1325000>;
};
};