[PATCH 0/6] backport fixes and improvements for MT7530

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On 05/02/2022 21:30, Rosen Penev wrote:
> On Sat, Feb 5, 2022 at 10:23 AM Hauke Mehrtens <hauke at hauke-m.de> wrote:
>>
>> On 2/5/22 19:21, Rosen Penev wrote:
>>> On Sat, Feb 5, 2022 at 10:12 AM Hauke Mehrtens <hauke at 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.

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