QCA4019 firmware: wrong numChain setting for bmi-board 16+17

QCA4019 firmware: wrong numChain setting for bmi-board 16+17

[Sven Eckelmann]

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Hi,

I've just noticed that the numChain in (ath10k/)QCA4019/hw1.0/board-2.bin is
wrong in the bus=ahb,bmi-chip-id=0,bmi-board-id=16 and
bus=ahb,bmi-chip-id=0,bmi-board-id=17 from the linux-firmware and
ath10k-firmware repository. It is 0x4 for a 2x2 device. This was fixed in
the QSDK by commit 171b9607fb8cc694ed469a4e29c91af9d92f2971 [1]. It is not
known to me whether this has an effect when the pre-cal data says that the
device should use numChain 2.

It is also currently unknown if this is actually the correct fieldname
(it is just called numChain_A_0_0 [2] in some text files we got from the
netgear GPL drop [2]). But I am talking about the byte at offset 0x2771.
The only other change in these two boarddata sections is the CRC.

Kind regards,
	Sven

[1] https://source.codeaurora.org/quic/qsdk/oss/firmware/ath10k-firmware/commit/ath10k/QCA40XX/hw1.0/board-2.bin?id=171b9607fb8cc694ed469a4e29c91af9d92f2971
[2] https://github.com/paul-chambers/netgear-r7800/blob/master/git_home/madwifi-11n.git/halphy_tools/host/eepromUtil/release_ipq4019/boardData_1_0_IPQ4019_Y9803_wifi1.txt

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Re: QCA4019 firmware: wrong numChain setting for bmi-board 16+17

[Sven Eckelmann]

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On Mittwoch, 8. Februar 2017 11:40:07 CET Sven Eckelmann wrote:
> Hi,
> 
> I've just noticed that the numChain in (ath10k/)QCA4019/hw1.0/board-2.bin is
> wrong in the bus=ahb,bmi-chip-id=0,bmi-board-id=16 and
> bus=ahb,bmi-chip-id=0,bmi-board-id=17 from the linux-firmware and
> ath10k-firmware repository. It is 0x4 for a 2x2 device. This was fixed in
> the QSDK by commit 171b9607fb8cc694ed469a4e29c91af9d92f2971 [1]. It is not
> known to me whether this has an effect when the pre-cal data says that the
> device should use numChain 2.

I was informed that the numChain information is part of the pre-calibration
data. So it is most likely only relevant when you calibrate your board or
don't have pre-calibration data.

Kind regards,
	Sven

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