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kendryte / k230_sdk

Kendryte K230 SDK
BSD 2-Clause "Simplified" License
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[help]: usb start too slow in CanMV-230 U-Boot #50

Closed yf13 closed 8 months ago

yf13 commented 8 months ago

Help

For frequent tftp boot users, the current usb start command is too slow on CanMV-k230. Is there any way to improve it so that to save developers' life?

xiangbingj commented 8 months ago

Help

For frequent tftp boot users, the current usb start command is too slow on CanMV-k230. Is there any way to improve it so that to save developers' life?

Hi, uboot will scan two otg controller, you can disable otg0, so that you can quickly scan the usb-eth connected to otg1.

usbotg0: usb-otg@91500000 {
    compatible = "snps,dwc2";
    reg = <0x0 0x91500000 0x0 0x10000>;
    g-tx-fifo-size = <128 128 128 128 128 128>;
    dr_mode = "otg";
    otg-rev = <0x200>;
    u-boot,dm-pre-reloc;
    status = "disabled";
};
yf13 commented 8 months ago

@xiangbingj thanks a lot. this works!