Re: [PATCH v3 0/7] b43: complete N-PHY rev 8 + radio 2057 rev 8 support

[Alessio Ferri <alessio.ferri@mythread.it>]

Il giorno Mon, 25 May 2026 10:07:52 +0200
Michael Büsch <m@bues.ch> ha scritto:

> On Sun, 24 May 2026 23:56:17 +0200
> Alessio Ferri <alessio.ferri@mythread.it> wrote:
> 
> > Alessio Ferri (7):
> >       b43: add firmware mappings and remove comments wondering
> > about rev22 initvals b43: add d11 core revision 0x16 to id table
> >       b43: route d11 corerev 22 to 24-bit indirect radio access
> >       b43: support radio 2057 rev 8
> >       b43: add IPA TX gain table for N-PHY r8 + radio 2057 r8
> >       b43: add channel info table for N-PHY r8 + radio 2057 r8
> >       b43: add RF power offset for N-PHY r8 + radio 2057 r8
> > 
> >  drivers/net/wireless/broadcom/b43/main.c        |  22 ++-
> >  drivers/net/wireless/broadcom/b43/radio_2057.c  | 230
> > ++++++++++++++++++++++--
> > drivers/net/wireless/broadcom/b43/tables_nphy.c |  58 ++++++ 3
> > files changed, 290 insertions(+), 20 deletions(-)  
> 
> 
> Looks good and in general low risk because it doesn't change any code
> paths of supported hw revisions.
> I'd still prefer if somebody could test this change on another
> supported 2057 radio. I don't have such a device unfortunately.
> 
> Does the D-Link DSL-3580L work with full expected wireless throughput
> after this change or are there any remaining known issues?
> 
> Acked-by: Michael Büsch <m@bues.ch>
> 

Please clarify "full expected wireless throughput", HT is
not supported by b43, so it runs only with NOHT in g-like speed:

wireless.radio0=wifi-device
wireless.radio0.type='mac80211'
wireless.radio0.path='platform/ubus/10007000.wlan/10004000.axi/bcma0:1'
wireless.radio0.band='2g'
wireless.radio0.channel='36'
wireless.radio0.htmode='NOHT'
wireless.radio0.country='IT'
wireless.default_radio0=wifi-iface
wireless.default_radio0.device='radio0'
wireless.default_radio0.network='lan'
wireless.default_radio0.mode='ap'
wireless.default_radio0.ssid='DSL3580L'
wireless.default_radio0.encryption='psk2'
wireless.default_radio0.disabled='0'

Enabling HT for N chips is out of scope, also there nothing to
gain and a lot to risk, so i won't do it.

Once this lands, i would move to fix AC support for the only two chips
that require b43 to work (4352 & 4360). I own them both, in multiple
routers, so i can safely develop for them. It is also low risk as there
are no existings users.