Commit bdb81836 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

arm64: dts: uniphier: add CPU clock and OPP table for LD11 SoC



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: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent 1ef64af8
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+38 −0
Original line number Diff line number Diff line
@@ -70,14 +70,52 @@
			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>;
		};
	};

	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@653334000 {
			opp-hz = /bits/ 64 <653334000>;
			clock-latency-ns = <300>;
		};
		opp@666667000 {
			opp-hz = /bits/ 64 <666667000>;
			clock-latency-ns = <300>;
		};
		opp@980000000 {
			opp-hz = /bits/ 64 <980000000>;
			clock-latency-ns = <300>;
		};
	};