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Commit efeedcf2 authored by AnilKumar Ch's avatar AnilKumar Ch Committed by Benoit Cousson
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ARM: dts: AM33XX: Add device tree OPP table 



Add DT OPP table for AM33XX family of devices. This data is
decoded by OF with of_init_opp_table() helper function.

Also adds cpu0 supply name to the corresponding dts files.
cpu0-supply name is used by cpufreq-cpu0 driver to get the
regulator pointer for voltage modifications.

Signed-off-by: default avatarAnilKumar Ch <anilkumar@ti.com>
Signed-off-by: default avatarBenoit Cousson <b-cousson@ti.com>
parent 5a8095e9

arch/arm/boot/dts/am335x-bone.dts

+6 −0
Original line number Diff line number Diff line
@@ -13,6 +13,12 @@ 
	model = "TI AM335x BeagleBone";

	compatible = "ti,am335x-bone", "ti,am33xx";



	cpus {

		cpu@0 {

			cpu0-supply = <&dcdc2_reg>;

		};

	};



	memory {

		device_type = "memory";

		reg = <0x80000000 0x10000000>; /* 256 MB */

arch/arm/boot/dts/am335x-evm.dts

+6 −0
Original line number Diff line number Diff line
@@ -13,6 +13,12 @@ 
	model = "TI AM335x EVM";

	compatible = "ti,am335x-evm", "ti,am33xx";



	cpus {

		cpu@0 {

			cpu0-supply = <&vdd1_reg>;

		};

	};



	memory {

		device_type = "memory";

		reg = <0x80000000 0x10000000>; /* 256 MB */

arch/arm/boot/dts/am33xx.dtsi

+15 −0
Original line number Diff line number Diff line
@@ -25,6 +25,21 @@ 
	cpus {

		cpu@0 {

			compatible = "arm,cortex-a8";



			/*

			 * 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 */

			clock-latency = <300000>; /* From omap-cpufreq driver */

		};

	};