[PATCH net v4 4/7] net: dsa: mt7530: fix handling of BPDUs on MT7530 switch

Vladimir Oltean olteanv at gmail.com
Wed Jun 14 14:16:57 PDT 2023


On Thu, Jun 15, 2023 at 12:05:44AM +0300, Arınç ÜNAL wrote:
> On 14.06.2023 23:50, Vladimir Oltean wrote:
> > Where have you seen the BPC register in the memory map of MT7530 or MT7621?
> 
> I did not somehow dump the memory map of the switch hardware and confirm the
> BPC register is there, if that's what you're asking.

I mean to say that I looked at

MT7530 Giga Switch programming guide.pdf
MT7621 Giga Switch Programming Guide.pdf
MT7621_ProgrammingGuide_GSW_v01.pdf

and I did not find this register.

> However, I can confirm the register is there and identical across all MT7530
> variants. I have tested the function of the register on the MCM MT7530 on
> the MT7621 SoC and the standalone MT7530. The register is also described on
> the document MT7620 Programming Guide v1.0, page 262.

Interesting. I did not have that one. Hard to keep up.



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