On Wed, 30 Oct 2019, Kars de Jong wrote:
Actually, I think the PCSCSI value is also at the wrong position in the list, its CONFIG3 (called CNTLREG3 in the data manual http://bitsavers.trailing-edge.com/components/amd/_dataSheets/1993_53c974_PCscsi.pdf) has pretty much the same layout as the FAS236 and FSC, so it would probably have the same issue as me at high synchronous speeds...
The PCSCSI driver (drivers/scsi/am53c974.c) is maintained by its author, Hannes Reinecke. He would need to review changes to the core driver relating to this chip. --
Kind regards, Kars.