On 06/02/2022 00:15, Arınç ÜNAL wrote:
On 05/02/2022 21:30, Rosen Penev wrote:
On Sat, Feb 5, 2022 at 10:23 AM Hauke Mehrtens <ha...@hauke-m.de> wrote:

On 2/5/22 19:21, Rosen Penev wrote:
On Sat, Feb 5, 2022 at 10:12 AM Hauke Mehrtens <ha...@hauke-m.de> wrote:

On 2/3/22 13:06, DENG Qingfang wrote:
Hi,

This series backports some patches from upstream to address the current
MT7530 DSA driver's problems.

Thanks.

DENG Qingfang (6):
     kernel: backport MediaTek jumbo frame support
     kernel: backport MT7530 ageing time support
     kernel: backport MT7530 VLAN fix
     kernel: backport MT7530 MDB operations
     kernel: backport MediaTek Ethernet PHY driver
     kernel: backport MT7530 IRQ support

Hi,

The last two patches are breaking the Linksys e8450 (mt7622) for me.

I am getting these errors:
Note the commentary in
https://github.com/openwrt/openwrt/commit/3f4301e123f29348b4ad87578d62b7d1f5f210c6

The message in dmesg is harmless. It just says the functionality in
this patch needs dts bindings, which were only provided for ramips.

The following error messages are a bigger problem:
--------
[    1.312943] mt7530 mdio-bus:00 lan1 (uninitialized): failed to
connect to PHY: -EINVAL
[    1.320890] mt7530 mdio-bus:00 lan1 (uninitialized): error -22
setting up PHY for tree 0, switch 0, port 0
---------

The LAN ports are not registered and then LAN is not working at all.
I think the PHY driver was written for mt7530. The e8450 uses mt7531 AFAIK.

No, the Mediatek GE PHY driver supports both mt7530 and mt7531 switch PHYs. Linksys E8450 has an MT7622B chip which seems to have a built-in MT7531 switch.

Correction:
MT7622X chips do not have a built-in mt7531 switch, there's a Fast Ethernet switch which is different. Linksys put an external mt7531 chip on the board for their E8450.

Arınç

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