Some U-Boot versions do not initialize MT7620's Frame Engine.
Then it is not possible to receive packets from the network.
Setting GDMA1 Frames Destination Port to Port 0 (CPU) in GDM Forwarding
Configuration register solves this issue.
Submitted by: Hiroki Mori (yamori813@yahoo.co.jp)
Reviewed by: adrian mizhka (previous version)
Differential Revision: https://reviews.freebsd.org/D9301
The SoCs I've tried the driver with include the following:
RT3050, RT5350, RT3662, RT3883, MT7620, MT7621, MT7688.
On boards, based on the above SoCs traffic is passing through correctly
and the boards survive a flood ping with very little or no drops (drops
may be caused elsewhere in my test setup, however).
One issue still remains and needs to be fixed in the future: if_rt does
not survive an ifconfig rt0 down/ifconfig rt0 up cycle.
This issue existed before this commit as well, however.
Reviewed by: ray
Approved by: adrian (mentor)
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D5864
This is a work in progress; bringing the interface down stops further
use. It only happens on RT5350/MT7620.
This is based on work by Alexander A. Mityaev <sansan@adm.ua>.
Submitted by: Stanislav Galabov <galabov@gmail.com>
