> My basic idea is to interface a Raspberry Pi-like board to a dumb > "switch evaluation board" which has only the Ethernet ports and the > SPI/whatever control interface exposed. The DSA CPU/master port combo > in this case would go through a Cat5 cable, which is not going to pan > out very well currently because both the RPi-side PHY and the switch > board-side PHY need some massaging from their respective drivers. Both > PHYs are C22.
Hi Vladimir There are a number of boards like this, back to back PHYs. But they all have the switch PHY strapped so they start on power on and auto-negotiate. DSA then just works. Andrew