Questions about QCA6174 firmwares

[Kalle Valo]

(sorry for the delay, this got piled up with other email and I missed it)

Brett Mastbergen <brett.mastbergen at protectli.com> writes:

> On Wed, Aug 10, 2022 at 10:56:38AM +0900, Wonsup Yoon wrote:
>> Hi,
>> 
>> If you don't mind, I'd like ask a few questions regarding QCA6174 firmwares.
>> 
>> 1. I've notice that QCA6174 hw3.0 4.4.1 firmwares have 4 versions
>> (none, c1, c2, c3). Are there any differences? Which one is newest
>> or correct?

IIRC c1, c2 and c3 have different features but I can't recall what they
are. The recommendation is to use the mainline branch 4.4.1 from [1] and
that's the branch which I update to linux-firmware as well.

>> 2. My QCA6174 seems to have a compatibility issue with a recent
>> firmware. I've tested theses firmware versions, but only the oldest
>> one works.
>> 
>
> I have observed the same firmware crashes with those versions with my
> QCA6174 module (JWW6051). Would love to know if
> RM.4.4.1.c2-00057-QCARMSWP-1 is the correct version to use, or if
> there is another newer version that I should be using.

It looks like these crashes only certain devices, can you provide more
info on what devices exactly they happen? The more information the
better.

And apparently older firmware works but newer crashes? It would help to
solve the problem if finding out from [1] what's the latest release
which still works and the earliest release which is broken.

Kalle

[1] https://github.com/kvalo/ath10k-firmware/tree/master/QCA6174/hw3.0/4.4.1

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