Overclocking possible?

novaspirit · September 21, 2017, 11:31pm

thanks for the rom suggestion. i’m currently using linux on it more then android even thought i have it dual booted. I have a raspberry pi heat sink on it with a fan blow on it and still throttles when pulling full load with “yes”… i might take my water cooling setup i have for raspberry pi and try it on this guy and see what happens

RDFTKV · September 21, 2017, 11:44pm

That will be interesting. Please post pictures if you do, my curiosity has been piqued.

If you have not checked on the work of @balbes150, you may want to have a look. He offers several Linux varieties .

novaspirit · September 21, 2017, 11:52pm

that’s the image of the watercooled raspberry pi, i would think it might look similar. if your interested i have it on my youtube channel. youtube novaspirit tech

RDFTKV · September 22, 2017, 12:06am

Nice channel and video.

novaspirit · September 22, 2017, 12:09am

thanksss while i have ypu here cam you tell me how to disable overscan?

RDFTKV · September 22, 2017, 1:03am

Sorry, I am only a casual Linux user. @Gouwa or @balbes150 may know how. In addition to Gouwa, other Khadas staff may also know.
Hope you find the solution.

Gouwa · September 22, 2017, 1:35am

Yep, it’s possiable overclocking for bot VIMs, but need to recompile the linux kernel for this.

VIM:

github.com

khadas/linux/blob/Nougat/arch/arm64/boot/dts/amlogic/mesongxl.dtsi#L211


		pinctrl-names = "jtag_apao_pins", "jtag_apee_pins";
		pinctrl-0 = <&jtag_apao_pins>;
		pinctrl-1 = <&jtag_apee_pins>;
	};
	clock: meson_clock {
		compatible = "amlogic, gxl-clock";
		reg = <0x0 0xc883c000 0x0 0x1000>,   /* HIU BUS*/
		          <0x0 0xc8100000 0x0 0x1000>;   //AOBUS
		#clock-cells = <1>;
		#reset-cells = <1>;
		sys_max = <1536000000>;
	};
	cpu_info{
		compatible = "amlogic, cpuinfo";
		cpuinfo_cmd = <0x82000044>;
	};
	pinmux: pinmux{
		compatible = "amlogic, pinmux-gxl";
		dev_name = "pinmux";
		#pinmux-cells=<2>;
		#address-cells = <2>;

VIM2:

github.com

khadas/linux/blob/Nougat/arch/arm64/boot/dts/amlogic/mesongxm.dtsi#L296


		pinctrl-names = "jtag_apao_pins", "jtag_apee_pins";
		pinctrl-0 = <&jtag_apao_pins>;
		pinctrl-1 = <&jtag_apee_pins>;
	};
	clock: meson_clock {
		compatible = "amlogic, gxl-clock";
		reg = <0x0 0xc883c000 0x0 0x1000>,   /* HIU BUS*/
		          <0x0 0xc8100000 0x0 0x1000>;   //AOBUS
		#clock-cells = <1>;
		#reset-cells = <1>;
		sys_max = <1536000000>;
	};
	cpu_info{
		compatible = "amlogic, cpuinfo";
		cpuinfo_cmd = <0x82000044>;
	};
	pinmux: pinmux{
		compatible = "amlogic, pinmux-gxl";
		dev_name = "pinmux";
		#pinmux-cells=<2>;
		#address-cells = <2>;

novaspirit · September 22, 2017, 3:28am

ohhh man!! this is going to be fun!!

novaspirit · October 9, 2017, 2:26am

there is not much of a write up for this, can you give me quick instructions on how to compile for linux/ubuntu kernel. thanksss

novaspirit · October 9, 2017, 3:14am

i keep getting errors while compiling, i get driver error

Terry · October 9, 2017, 4:28am

You can refer to Use Fenix scripts to build your own ubuntu image
If you has question for it, please tell me,
Thanks,

Gouwa · October 9, 2017, 4:34am

Hi, Donald & novaspirit:
If needed, we can build a overclock ROM for your testing and preview.

novaspirit · October 9, 2017, 5:12am

OMG that would be great!!! fastest possible so at least i can put the water cooler to work!!

novaspirit · October 9, 2017, 5:36am

i’m checking out the source files the fenix script uses to compile for ubuntu and i can’t seem to find anywhere for 1536 clock speed to edit

Terry · October 9, 2017, 8:14am

What’s the version of kernel? 3.14 or 4.9?
The version 4.9 still don’t support for overclock. We need more time to add support for overclock.
Sorry for that.

novaspirit · October 9, 2017, 3:05pm

his is all the spots i found with the sys_max. should i edit all or just mesongxl and mesongxm?

khadas@Khadas:~/project/khadas/ubuntu/linux/arch/arm64$ grep -r "1536"
boot/dts/amlogic/mesongxl.dtsi: sys_max = <1536000000>;
boot/dts/amlogic/mesontxl.dtsi: sys_max = <1536000000>;
boot/dts/amlogic/mesongxm.dtsi: sys_max = <1536000000>;
boot/dts/amlogic/mesongxtvbb.dtsi: sys_max = <1536000000>;
boot/dts/amlogic/mesongxbb.dtsi: sys_max = <1536000000>;
boot/dts/amlogic/odroidc2.dts: trip_point = <70 1536001 1536001 511 511 3 2
boot/dts/amlogic/odroidc2.dts: keep_mode_max_range = <1536000 792 4 3>;

Terry · October 10, 2017, 1:04am

VIM: mesongxl
VIM2; mesongxm

novaspirit · October 16, 2017, 4:54am

any word on this yet?

Gouwa · October 16, 2017, 8:25am

Hi, novaspirit:
Does Android overclock ROM with 3.14 kernel match your idea?

If yes, our guys can build one for your testing.

Thanks.

novaspirit · October 16, 2017, 1:26pm

would that be able to work on ubunut? if so that would be great