[PATCH v2 0/6] mediatek: add support for Adtran SDG 854-6/v6

[Koen van Mierlo]

I've built an image based on the PR and installed it on the router.
Everything works but I don't have hardware to test the SFP port.

Tested-by: Koen van Mierlo k.j.vanmierlo at gmail.com