| Message ID | 20171215171643.8345-2-d-gerlach@ti.com |
|---|---|
| State | Accepted |
| Commit | 337c6c9a69af73dd367daeddee44cbbc2408cf9f |
| Headers | show |
| Series | ARM: dts: Some am43x fixes | expand |
diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts index 5e364473067f..20132477a871 100644 --- a/arch/arm/boot/dts/am437x-idk-evm.dts +++ b/arch/arm/boot/dts/am437x-idk-evm.dts @@ -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; + }; +};
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> --- arch/arm/boot/dts/am437x-idk-evm.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+) -- 2.15.1 -- 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