How to detect CPU / SoC ?

[ds2k5]

Hi, have a Device with got only Serial Access to u-boot.

with: fdt print got this INFO about CPU

    model = "Amlogic";
    amlogic-dt-id = "axg_s420_v03gva";
    compatible = "amlogic, axg";
    interrupt-parent = <0x00000001>;
    #address-cells = <0x00000002>;
    #size-cells = <0x00000002>;
    cpus {
        #address-cells = <0x00000002>;
        #size-cells = <0x00000000>;
        phandle = <0x00000067>;
        cpu-map {
            cluster0 {
                phandle = <0x00000068>;
                core0 {
                    cpu = <0x00000002>;
                };
                core1 {
                    cpu = <0x00000003>;
                };
                core2 {
                    cpu = <0x00000004>;
                };
                core3 {
                    cpu = <0x00000005>;
                };
            };
        };
        cpu@0 {
            device_type = "cpu";
            compatible = "arm,cortex-a53", "arm,armv8";
            reg = <0x00000000 0x00000000>;
            enable-method = "psci";
            clocks = <0x00000006 0x00000000>;
            clock-names = "cpu-cluster.0";
            cpu-idle-states = <0x00000007>;
            phandle = <0x00000002>;
        };
        cpu@1 {
            device_type = "cpu";
            compatible = "arm,cortex-a53", "arm,armv8";
            reg = <0x00000000 0x00000001>;
            enable-method = "psci";
            clocks = <0x00000006 0x00000000>;
            clock-names = "cpu-cluster.0";
            cpu-idle-states = <0x00000007>;
            phandle = <0x00000003>;
        };
        cpu@2 {
            device_type = "cpu";
            compatible = "arm,cortex-a53", "arm,armv8";
            reg = <0x00000000 0x00000002>;
            enable-method = "psci";
            clocks = <0x00000006 0x00000000>;
            clock-names = "cpu-cluster.0";
            cpu-idle-states = <0x00000007>;
            phandle = <0x00000004>;
        };
        cpu@3 {
            device_type = "cpu";
            compatible = "arm,cortex-a53", "arm,armv8";
            reg = <0x00000000 0x00000003>;
            enable-method = "psci";
            clocks = <0x00000006 0x00000000>;
            clock-names = "cpu-cluster.0";
            cpu-idle-states = <0x00000007>;
            phandle = <0x00000005>;
        };
        idle-states {
            entry-method = "arm,psci-0.2";
            cpu-sleep-0 {
                compatible = "arm,idle-state";
                arm,psci-suspend-param = <0x00010000>;
                local-timer-stop;
                entry-latency-us = <0x00001388>;
                exit-latency-us = <0x00001388>;
                min-residency-us = <0x00003a98>;
                phandle = <0x00000007>;
            };
        };
    };

At the Boot I can see this:

set vcck to 1050 mv
set vddee to 950 mv
Board ID = 3
CPU clk: 1200MHz

So CPU run with 1.2 GHZ

What SoC is this: 905 or 805 ?

Thank you !

[ophub]

model = "Amlogic";
amlogic-dt-id = "axg_s420_v03gva";
compatible = "amlogic, axg";

- GXBB (S905) : "amlogic,meson-gxbb-"
- GXL (S905X, S905D) : "amlogic,meson-gxl-"
- GXM (S912) : "amlogic,meson-gxm-"
- AXG (A113D, A113X) : "amlogic,meson-axg-"
- G12A (S905X2, S905D2, S905Y2) : "amlogic,meson-g12a-"

[ds2k5]

Thanks

Did I understand right

It is a: A113D, A113X ?

[ophub]

Do not know

https://android.googlesource.com/kernel/arm64/+/f5269100977385d1fd4a5ef68e49631892cf4fe4/arch/arm/boot/dts/amlogic/axg_s420_v03gva.dts