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Buildroot tiny rootfs has no boot folder for USB3.0 serial Gadget to be Configured LS1021a

Question asked by Elias Bitbaker on Jan 5, 2020
Latest reply on Jan 27, 2020 by Elias Bitbaker



Recently I used

flex-builder -i mkrfs -r buildroot:tiny -a arm32    # generate arm32 little-endian rootfs as per qoriq_arm64_devel_defconfig


to generate a rootfs then after I use make ARCH=arm menuconfig to get every modules compiled


then I loaded into the linux but I found out that there is no /boot directory for me to configure the device tree file in order to make the usb3.0 works as serial gadget.


So once I loaded modprobe g_serial


it thrown me error [    0.200027] dwc3 3100000.usb3: Failed to get clk 'ref': -2


Can anyone help?