AM4378: How to change clock speed to 600GHz

Hi Jack.

What software do you use on AM4378, Linux or RTOS?

Hi Bin Liu.

Customer uses the latest release of PROCESSOR SDK LINUX.

Thanks.

Regards, 

Jack

Hi Bin Liu

Should I look into am33xx.dtsi rather than am43xx.dtsi? I am not able to find the opps from am43xx.dtsi 

Is it correct that I need to delete the next line's opp of opp120-600000000 line in am33xx.dtsi ?

		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>;
		};

Thanks.

Regards, 

Jack

Regards, 

Jack

Hi Jack,

My apologies, I thought you were using AM335x device. For AM4378, please remove the unwanted OPP entries from the opp-table node in am4372.dtsi.

Hi BinLiu

I could not find out the OPP entries from am4372.dtsi. 

Can you please check where is the relevant code for AM4372 to remove the unwanted OPPs.

Thanks.

Regards, 

Jack

Many Thanks ! Bin Liu.