Commit 4317be11 authored by Dave Gerlach's avatar Dave Gerlach Committed by Tony Lindgren
Browse files

ARM: dts: am33xx: Move to operating-points-v2 table and ti-cpufreq driver 



Drop the operating-points table present in am33xx.dtsi and add an
operating-points-v2 table with all OPPs available for all silicon
revisions along with necessary data for use by ti-cpufreq to selectively
enable the appropriate OPPs at runtime. Also, drop the voltage-tolerance
value and provide voltages for each OPP using the <target min max>
format instead.

Information from AM335x Data Manual, SPRS717i, Revised December 2015,
Table 5-7.

Signed-off-by: default avatarDave Gerlach <d-gerlach@ti.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent fb515b8e

arch/arm/boot/dts/am33xx.dtsi

+75 −13
Original line number Diff line number Diff line
@@ -45,19 +45,9 @@ 
			device_type = "cpu";

			reg = <0>;



			/*

			 * To consider voltage drop between PMIC and SoC,

			 * tolerance value is reduced to 2% from 4% and

			 * voltage value is increased as a precaution.

			 */

			operating-points = <

				/* kHz    uV */

				720000  1285000

				600000  1225000

				500000  1125000

				275000  1125000

			>;

			voltage-tolerance = <2>; /* 2 percentage */

			operating-points-v2 = <&cpu0_opp_table>;

			ti,syscon-efuse = <&scm_conf 0x7fc 0x1fff 0>;

			ti,syscon-rev = <&scm_conf 0x600>;



			clocks = <&dpll_mpu_ck>;

			clock-names = "cpu";
@@ -66,6 +56,78 @@ 
		};

	};



	cpu0_opp_table: opp_table0 {

		compatible = "operating-points-v2";



		/*

		 * The three following nodes are marked with opp-suspend

		 * because the can not be enabled simultaneously on a

		 * single SoC.

		 */

		opp50@300000000 {

			opp-hz = /bits/ 64 <300000000>;

			opp-microvolt = <950000 931000 969000>;

			opp-supported-hw = <0x06 0x0010>;

			opp-suspend;

		};



		opp100@275000000 {

			opp-hz = /bits/ 64 <275000000>;

			opp-microvolt = <1100000 1078000 1122000>;

			opp-supported-hw = <0x01 0x00FF>;

			opp-suspend;

		};



		opp100@300000000 {

			opp-hz = /bits/ 64 <300000000>;

			opp-microvolt = <1100000 1078000 1122000>;

			opp-supported-hw = <0x06 0x0020>;

			opp-suspend;

		};



		opp100@500000000 {

			opp-hz = /bits/ 64 <500000000>;

			opp-microvolt = <1100000 1078000 1122000>;

			opp-supported-hw = <0x01 0xFFFF>;

		};



		opp100@600000000 {

			opp-hz = /bits/ 64 <600000000>;

			opp-microvolt = <1100000 1078000 1122000>;

			opp-supported-hw = <0x06 0x0040>;

		};



		opp120@600000000 {

			opp-hz = /bits/ 64 <600000000>;

			opp-microvolt = <1200000 1176000 1224000>;

			opp-supported-hw = <0x01 0xFFFF>;

		};



		opp120@720000000 {

			opp-hz = /bits/ 64 <720000000>;

			opp-microvolt = <1200000 1176000 1224000>;

			opp-supported-hw = <0x06 0x0080>;

		};



		oppturbo@720000000 {

			opp-hz = /bits/ 64 <720000000>;

			opp-microvolt = <1260000 1234800 1285200>;

			opp-supported-hw = <0x01 0xFFFF>;

		};



		oppturbo@800000000 {

			opp-hz = /bits/ 64 <800000000>;

			opp-microvolt = <1260000 1234800 1285200>;

			opp-supported-hw = <0x06 0x0100>;

		};



		oppnitro@1000000000 {

			opp-hz = /bits/ 64 <1000000000>;

			opp-microvolt = <1325000 1298500 1351500>;

			opp-supported-hw = <0x04 0x0200>;

		};

	};



	pmu {

		compatible = "arm,cortex-a8-pmu";

		interrupts = <3>;

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