prensing Posted July 31, 2020 Share Posted July 31, 2020 I have recently started working with a NanoPi R2S. I have it booting from the built-in microSD. However, I would like to be able to boot off of USB. When I interrupt u-boot and start USB on the board, it finds the hub but does not seem to find *any* device. I have tried various USB sticks of different sizes and brands, and a few ordinary devices such as a mouse. Nothing. Is this a known problem? Should it be able to work? Thanks 0 Quote Link to comment Share on other sites More sharing options...
Werner Posted August 1, 2020 Share Posted August 1, 2020 Maybe U-Boot is lacking USB support. Tried the compromise to leave U-Boot on the sdcard and put the rest on a stick? You can try to use "sata-nand-install" script to achieve that. 0 Quote Link to comment Share on other sites More sharing options...
Igor Posted August 1, 2020 Share Posted August 1, 2020 10 hours ago, prensing said: Is this a known problem? Its not a problem but design issue: http://rockchip.wikidot.com/boot-sequence 0 Quote Link to comment Share on other sites More sharing options...
prensing Posted August 2, 2020 Author Share Posted August 2, 2020 Thanks for the replies. The link to the Rockchip boot sequence is definitely helpful. On running the split boot, that is kind of what I was trying. I have an SD card (with the official Armbian distro for the R2S) in the slot, and it starts the boot from that. I then interrupt it at the u-boot prompt, and then do "usb start". It loads the driver, sees the onboard USB hub, but never finds any device attached to the USB port. I know the NanoPi R2S is a recent board, so maybe there is some missing or not supported? I also tried this with the official distro from FriendlyARM, but that version of u-boot is really old (2014 according to the version number) and does not seem to really support USB. I would be happy to test things if anyone has a suggestion. Thanks for any help. 0 Quote Link to comment Share on other sites More sharing options...
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