Linux Mainline

[Voyt]

Aftert running successfully with the 4.19 kernel (Ayufan's) , SPI booting with  a USB3 ssd,  I found that after installing 4.20 I could no longer boot from the USB drive. ...

Hi belfastraven,

Could you please check the following:
1) Revert the Kernel sources v4.20 to the original state
2) Add this line

Code:

regulator-boot-on;

in sections vcc_host_5v: vcc-host-5v-regulator and vcc_host1_5v: vcc_otg_5v: vcc-host1-5v-regulator so both sections should look like this:

Code:

    vcc_host_5v: vcc-host-5v-regulator {
        compatible = "regulator-fixed";
        enable-active-high;
        gpio = <&gpio0 RK_PA0 GPIO_ACTIVE_HIGH>;
        pinctrl-names = "default";
        pinctrl-0 = <&usb30_host_drv>;
        regulator-name = "vcc_host_5v";
        regulator-always-on;
        regulator-boot-on;
        vin-supply = <&vcc_sys>;
    };

    vcc_host1_5v: vcc_otg_5v: vcc-host1-5v-regulator {
        compatible = "regulator-fixed";
        enable-active-high;
        gpio = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>;
        pinctrl-names = "default";
        pinctrl-0 = <&usb20_host_drv>;
        regulator-name = "vcc_host1_5v";
        regulator-always-on;
        regulator-boot-on;
        vin-supply = <&vcc_sys>;
    };

Or just copy & paste the whole file from here: https://pastebin.com/ubwPv9TY
Please let me know if it works for you (I'd appreciate if you drop me an e-mail: voytikd [at] gmail [dot] com).