Re: Anyone kicked at the SiFive P550 ?

On Fri, Mar 14, 2025 at 2:54 PM Colin S. Gordon wrote:
> Perhaps a long shot, but it looks like there's a micro SD slot on the board, which in my experience tends to be better supported by vendor uboot than USB. Odds are decent the USB stack won't work out of the box anyways on FreeBSD right now, so it would seem like an sd/mmc would have a better chance of a successfully loaded kernel finding a filesystem.

You may find SDWire helpful in firmware testing automation where SD
card images are involved :-)

https://shop.3mdeb.com/shop/open-source-hardware/sdwire/

Here is a nice article on quick porting NuttX RTOS to A527 with
detailed descriptions, the chip is different but the approach is
similar :-)

https://lupyuen.codeberg.page/articles/avaota.html

-- 
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info