From: Heiko Stuebner <heiko.stuebner@xxxxxx>
The fact that OPPs specified only on cpu0 work is Linux specific and
normally cpu frequencies should be specified for each cpu core.
To facilitate this without needing to duplicate the frequency table
each time, convert to opp-v2 before adding references to all cores.
Signed-off-by: Heiko Stuebner <heiko.stuebner@xxxxxx>
---
arch/arm/boot/dts/rk3188.dtsi | 55 ++++++++++++++++++++++++++++-------
1 file changed, 44 insertions(+), 11 deletions(-)
diff --git a/arch/arm/boot/dts/rk3188.dtsi b/arch/arm/boot/dts/rk3188.dtsi
index fd896b0a46e3..9d8c4c560e51 100644
--- a/arch/arm/boot/dts/rk3188.dtsi
+++ b/arch/arm/boot/dts/rk3188.dtsi
@@ -23,37 +23,70 @@
compatible = "arm,cortex-a9";
next-level-cache = <&L2>;
reg = <0x0>;
- operating-points = <
- /* kHz uV */
- 1608000 1350000
- 1416000 1250000
- 1200000 1150000
- 1008000 1075000
- 816000 975000
- 600000 950000
- 504000 925000
- 312000 875000
- >;
clock-latency = <40000>;
clocks = <&cru ARMCLK>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a9";
next-level-cache = <&L2>;
reg = <0x1>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a9";
next-level-cache = <&L2>;
reg = <0x2>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a9";
next-level-cache = <&L2>;
reg = <0x3>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ };
+ };
+
+ cpu0_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-312000000 {
+ opp-hz = /bits/ 64 <312000000>;
+ opp-microvolt = <875000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-504000000 {
+ opp-hz = /bits/ 64 <504000000>;
+ opp-microvolt = <925000>;
+ };
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <950000>;
+ opp-suspend;
+ };
+ opp-816000000 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <975000>;
+ };
+ opp-1008000000 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt = <1075000>;
+ };
+ opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <1150000>;
+ };
+ opp-1416000000 {
+ opp-hz = /bits/ 64 <1416000000>;
+ opp-microvolt = <1250000>;
+ };
+ opp-1608000000 {
+ opp-hz = /bits/ 64 <1608000000>;
+ opp-microvolt = <1350000>;
};
};
--
2.18.0
