Commit 337c6c9a authored Dec 15, 2017 by Dave Gerlach Committed by Tony Lindgren Dec 21, 2017

ARM: dts: am437x-idk-evm: Disable OPP50 for MPU



AM437x IDK has a TPS386000 supply voltage supervisor on the VDD_MPU rail
set to trigger undervoltage condition at 0.96V. Because of this, OPP50,
which is normally configured to 300MHz at 0.95V, must be disabled to
avoid triggering the undervoltage condition. Also mark OPP100 as the
suspend-opp as it is now our lowest OPP.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

parent b155232d

arch/arm/boot/dts/am437x-idk-evm.dts

+14 −0

Original line number	Diff line number	Diff line
		@@ -519,3 +519,17 @@
		&cpu {
		cpu0-supply = <&tps>;
		};

		&cpu0_opp_table {
		/*
		* Supply voltage supervisor on board will not allow opp50 so
		* disable it and set opp100 as suspend OPP.
		*/
		opp50@300000000 {
		status = "disabled";
		};

		opp100@600000000 {
		opp-suspend;
		};
		};