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 --- arch/arm/boot/dts/rockchip/rk312x.dtsi | 43 +++++++++++++++++++++++--- 1 file changed, 39 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/rockchip/rk312x.dtsi b/arch/arm/boot/dts/rockchip/rk312x.dtsi index 08b953b005ff..93560c4cd16a 100644 --- a/arch/arm/boot/dts/rockchip/rk312x.dtsi +++ b/arch/arm/boot/dts/rockchip/rk312x.dtsi @@ -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>; }; };