| Message ID | 1476629958-25368-3-git-send-email-yamada.masahiro@socionext.com |
|---|---|
| State | Superseded |
| Headers | show |
On 16-10-16, 23:59, Masahiro Yamada wrote: > + cluster0_opp: opp_table { > + compatible = "operating-points-v2"; > + opp-shared; > + > + opp@245000000 { > + opp-hz = /bits/ 64 <245000000>; > + clock-latency-ns = <300>; > + }; > + opp@250000000 { > + opp-hz = /bits/ 64 <250000000>; > + clock-latency-ns = <300>; > + }; > + opp@490000000 { > + opp-hz = /bits/ 64 <490000000>; > + clock-latency-ns = <300>; > + }; > + opp@500000000 { > + opp-hz = /bits/ 64 <500000000>; > + clock-latency-ns = <300>; > + }; > + opp@653333333 { Why isn't ^^ matching with below values ? Same in next patch as well. > + opp-hz = /bits/ 64 <653334000>; > + clock-latency-ns = <300>; > + }; > + opp@666666666 { > + opp-hz = /bits/ 64 <666667000>; > + clock-latency-ns = <300>; > + }; > + opp@980000000 { > + opp-hz = /bits/ 64 <980000000>; > + clock-latency-ns = <300>; > + }; > + }; > + > clocks { > refclk: ref { > compatible = "fixed-clock"; > -- > 1.9.1 -- viresh -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi index 73e0acf..e3eb10f 100644 --- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi +++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi @@ -70,14 +70,18 @@ device_type = "cpu"; compatible = "arm,cortex-a53", "arm,armv8"; reg = <0 0x000>; + clocks = <&sys_clk 33>; enable-method = "psci"; + operating-points-v2 = <&cluster0_opp>; }; cpu1: cpu@1 { device_type = "cpu"; compatible = "arm,cortex-a53", "arm,armv8"; reg = <0 0x001>; + clocks = <&sys_clk 33>; enable-method = "psci"; + operating-points-v2 = <&cluster0_opp>; }; }; @@ -86,6 +90,40 @@ method = "smc"; }; + cluster0_opp: opp_table { + compatible = "operating-points-v2"; + opp-shared; + + opp@245000000 { + opp-hz = /bits/ 64 <245000000>; + clock-latency-ns = <300>; + }; + opp@250000000 { + opp-hz = /bits/ 64 <250000000>; + clock-latency-ns = <300>; + }; + opp@490000000 { + opp-hz = /bits/ 64 <490000000>; + clock-latency-ns = <300>; + }; + opp@500000000 { + opp-hz = /bits/ 64 <500000000>; + clock-latency-ns = <300>; + }; + opp@653333333 { + opp-hz = /bits/ 64 <653334000>; + clock-latency-ns = <300>; + }; + opp@666666666 { + opp-hz = /bits/ 64 <666667000>; + clock-latency-ns = <300>; + }; + opp@980000000 { + opp-hz = /bits/ 64 <980000000>; + clock-latency-ns = <300>; + }; + }; + clocks { refclk: ref { compatible = "fixed-clock";
Add a CPU clock to every CPU node and a CPU OPP table to use the generic cpufreq driver. Note: clock-latency-ns (300ns) was calculated based on the CPU-gear switch sequencer spec; it takes 12 clock cycles on the sequencer running at 50 MHz, plus a bit additional latency. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> --- arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 38 ++++++++++++++++++++++++ 1 file changed, 38 insertions(+) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html