https://gregdavill.github.io/OrangeCrab/ 
https://github.com/gregdavill/OrangeCrab 
[Mon Sep 14 13:46:12 2020] usb 2-2.3: new full-speed USB device number 8 using xhci_hcd
[Mon Sep 14 13:46:12 2020] usb 2-2.3: New USB device found, idVendor=1209, idProduct=5af0, bcdDevice= 1.01
[Mon Sep 14 13:46:12 2020] usb 2-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[Mon Sep 14 13:46:12 2020] usb 2-2.3: Product: OrangeCrab r0.2 DFU Bootloader v3.1
[Mon Sep 14 13:46:12 2020] usb 2-2.3: Manufacturer: GsD

Microwatt with Linux on OrangeCrab
https://codeconstruct.com.au/docs/microwatt‑orangecrab/ 
⦗OSS CAD Suite⦘ dpavlin@klin:/klin/FPGA/microwatt$ make microwatt.bit 2>&1 | tee ~/tmp/build1.txt