b43/SSB: SPROM revision problem

Rafał Miłecki zajec5 at gmail.com
Fri Oct 22 08:41:35 EDT 2010


W dniu 22 października 2010 13:23 użytkownik Rafał Miłecki
<zajec5 at gmail.com> napisał:
> I've problem with initializing N radio (2055) on my Broadcom card.
>
> In case of my card simple workaround [1] for radio initialization is
> needed. If I do not use workaround radio simply does not start. I
> dumped MMIO operations of "wl" and it uses workaround for my card as
> well.
>
> The problem is that workaround condition is SPROM-based. It looks like this:
> if (sprom->revision < 4)
>        workaround = (some_specific_card);
> else
>        workaround = ((sprom->boardflags_hi & B43_BFH_NOPA) == 0);
>
> So now goes the tricky part. My SSB has following SPROM:
> [ 6208.080097] ssb: SPROM offset is 0x1000
> [ 6208.089815] ssb: SPROM revision 5 detected.
>
> However in drivers/ssb/pci.c there are some translations, including
> one for my card. My SPROM revision gets translated to 4. The result
> is:
> sprom->revision: 4
> sprom->boardflags_hi: 0x1
>
> With that revision and boardflags workaround is not used and my radio
> does not init. There are two possibilities:
> 1) Specs are wrong
> 2) We do SPROM translation incorrectly
>
> Any hints about that?
>
>
> [1] http://bcm-v4.sipsolutions.net/802.11/Radio/2055/Init#Post_Init

Ahhh, I should check for boardflags2! Expect patches soon ;)

-- 
Rafał



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