Re: Wallys DR9074-6E(PN02.7) QCN9074 refuses to work on 6GHz band

From: Sven Eckelmann <sven@narfation.org>
To: Mariusz <enebeo@gmail.com>
Cc: walde <waldemar.stroh@uni-siegen.de>,
	"ath11k@lists.infradead.org" <ath11k@lists.infradead.org>
Subject: Re: Wallys DR9074-6E(PN02.7) QCN9074 refuses to work on 6GHz band
Date: Tue, 06 Dec 2022 09:56:22 +0100	[thread overview]
Message-ID: <23529001.ouqheUzb2q@ripper> (raw)
In-Reply-To: <3684626.iIbC2pHGDl@sven-l14>

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On Friday, 18 November 2022 15:05:49 CET Sven Eckelmann wrote:
> Wallystech has to find the correct document on createpoint which describes the 
> process. It was something like "module" "board id" "fusing". But it is not the 
> "Board ID Fusing for 802.11ax WLAN AP Chipsets" which only describes the way 
> how you would to it for thei internal wifi of the IPQ807x/IPQ60xx/... SoC.
> You/they are searching for the corresponding document for Pine IPQ9074. Most 
> likely hidden in some QDART documents.

It seems like this can be found easier via the search terms "Steps to fuse 
board ID in OTP for QCN9074". For example in document "80-YC644-3 Rev. A" on 
page 62. Qualcomm wrote there that this is needed for cards but can be skipped 
for internal radio - must likely referring there to the possibility to 
overwrite the board_id via devicetree (or using other hacks like providing 
only the specific board.bin instead of the board-2.bin).

I cannot say much about the document but is basically telling them to use 
QDART and enable the option to write a specific "bdf version" (yes, Qualcomm 
has many names for the same things).

There is also another documents which describe similar methods for various 
chips. For example "Fusing board ID to OTP in QCN61xx" in 80-19559-1 Rev. AA 
on page 76. Here they have a lot less steps - only the ones which set the
"bdf version".

At the end, these are documents which are only released under NDA and which 
need tools which you also can only get under NDA. So the manufacturer of these 
devices has to take care to write the board_id (or "bdf version") to the OTP 
before shipping them out to customers or resellers.

Kind regards,
	Sven

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