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arm64: dts: meson-g12b: add cpus OPP tables
Add the OPP table taken from the HardKernel Odroid-N2 DTS. The Amlogic G12B SoC seems to available in 2 types : - low-speed: Cortex-A73 Cluster up to 1,704GHz - high-speed: Cortex-A73 Cluster up to 2.208GHz The Cortex-A73 Cluster can be clocked up to 1,896GHz for both types. The Vendor Amlogic A311D OPP table are slighly different, with lower voltages than the HardKernel S922X tables but seems to be high-speed type. This adds the conservative OPP table with the S922X higher voltages and the maximum low-speed OPP frequency. The values were tested to be stable on an HardKernel Odroid-N2 board running the arm64 cpuburn at [1] and cycling between all the possible cpufreq translations for both clusters and checking the final frequency using the clock-measurer, script at [2]. [1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S [2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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@ -95,6 +95,121 @@ l2: l2-cache0 {
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compatible = "cache";
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};
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};
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cpu_opp_table_0: opp-table-0 {
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compatible = "operating-points-v2";
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opp-shared;
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opp-100000000 {
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opp-hz = /bits/ 64 <100000000>;
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opp-microvolt = <731000>;
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};
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opp-250000000 {
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opp-hz = /bits/ 64 <250000000>;
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opp-microvolt = <731000>;
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};
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opp-500000000 {
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opp-hz = /bits/ 64 <500000000>;
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opp-microvolt = <731000>;
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};
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opp-666666666 {
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opp-hz = /bits/ 64 <666666666>;
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opp-microvolt = <731000>;
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};
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opp-1000000000 {
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opp-hz = /bits/ 64 <1000000000>;
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opp-microvolt = <731000>;
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};
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opp-1200000000 {
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opp-hz = /bits/ 64 <1200000000>;
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opp-microvolt = <731000>;
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};
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opp-1398000000 {
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opp-hz = /bits/ 64 <1398000000>;
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opp-microvolt = <761000>;
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};
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opp-1512000000 {
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opp-hz = /bits/ 64 <1512000000>;
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opp-microvolt = <791000>;
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};
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opp-1608000000 {
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opp-hz = /bits/ 64 <1608000000>;
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opp-microvolt = <831000>;
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};
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opp-1704000000 {
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opp-hz = /bits/ 64 <1704000000>;
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opp-microvolt = <861000>;
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};
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opp-1896000000 {
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opp-hz = /bits/ 64 <1896000000>;
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opp-microvolt = <981000>;
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};
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};
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cpub_opp_table_1: opp-table-1 {
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compatible = "operating-points-v2";
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opp-shared;
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opp-100000000 {
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opp-hz = /bits/ 64 <100000000>;
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opp-microvolt = <751000>;
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};
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opp-250000000 {
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opp-hz = /bits/ 64 <250000000>;
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opp-microvolt = <751000>;
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};
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opp-500000000 {
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opp-hz = /bits/ 64 <500000000>;
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opp-microvolt = <751000>;
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};
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opp-666666666 {
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opp-hz = /bits/ 64 <666666666>;
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opp-microvolt = <751000>;
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};
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opp-1000000000 {
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opp-hz = /bits/ 64 <1000000000>;
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opp-microvolt = <751000>;
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};
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opp-1200000000 {
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opp-hz = /bits/ 64 <1200000000>;
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opp-microvolt = <771000>;
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};
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opp-1398000000 {
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opp-hz = /bits/ 64 <1398000000>;
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opp-microvolt = <791000>;
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};
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opp-1512000000 {
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opp-hz = /bits/ 64 <1512000000>;
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opp-microvolt = <821000>;
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};
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opp-1608000000 {
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opp-hz = /bits/ 64 <1608000000>;
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opp-microvolt = <861000>;
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};
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opp-1704000000 {
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opp-hz = /bits/ 64 <1704000000>;
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opp-microvolt = <891000>;
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};
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};
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};
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&clkc {
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