The problems with AMD PSP and other things are well known to the coreboot/libreboot teams: https://libreboot.org/faq/#amd
As noted, AMD used to work with coreboot but for some reason or another stopped.
If this effort means a return to working with the coreboot project then I think this is a good thing.
That said, I think you are correct to be highly skeptical that anything great can come of it since the architectural goals of the PSP are at odds with the goals of coreboot.
Unless AMD allows coreboot/libreboot to control the PSP then any coreboot/libreboot support would be superficial. But again, the coreboot/libreboot teams are well aware of this...so I would be confident they walk into any AMD collaboration with eyes wide open.
As noted, AMD used to work with coreboot but for some reason or another stopped.
If this effort means a return to working with the coreboot project then I think this is a good thing.
That said, I think you are correct to be highly skeptical that anything great can come of it since the architectural goals of the PSP are at odds with the goals of coreboot.
Unless AMD allows coreboot/libreboot to control the PSP then any coreboot/libreboot support would be superficial. But again, the coreboot/libreboot teams are well aware of this...so I would be confident they walk into any AMD collaboration with eyes wide open.