New comment by tsndqst on void-packages repository https://github.com/void-linux/void-packages/pull/53925#issuecomment-2585003347 Comment: @Anachron I think you'll be interested in this PR. Sorry it took me so long to get back to you about booting from USB. I tried some things without luck and just this week found a method that works. I updated u-boot to 2025.1 and found simpler ways to write u-boot to the board. I tested booting from USB (with no other storage attached) after using `dd if=/usr/lib/rockpro64-uboot/u-boot-rockchip-spi.bin of=/dev/mtd0` to write u-boot to SPI.