Sparklan WPEA-352ACN not detecting with imx6

[surendrant]

Hello all,

I'm using Sparklan WPEA-352ACN which uses Qualcomm Atheros QCA9880 mini PCIe.

With In-build ath10k driver, when i give lspci command i can see (revff). where PCIe subsystem not loaded properly.

lspci:

root@iWave-G15:~# lspci
00:00.0 PCI bridge: Synopsys, Inc. Device abcd (rev 01)
01:00.0 Network controller: Qualcomm Atheros QCA986x/988x 802.11ac Wireless Network Adapter (rev ff)

Initially i thought problem could be in ath10k firmware and tested with all required firmware available.But still no progress on it.

Further i cloned the latest ath10k driver from git and tested by loading the module .i see "Refused to change power state"

root@iWave-G15# insmod wifi/cfg80211.ko
root@iWave-G15# insmod wifi/mac80211.ko
root@iWave-G15# insmod ath.ko
root@iWave-G15# insmod ath10k_core.ko
root@iWave-G15# insmod ath10k_pci.ko  
ath10k_pci 0000:01:00.0: Refused to change power state, currently in D3

And i expect some prints when i give insmod mac80211.ko/cfg80211.ko.

Any suggestion that what makes PCIe card not detect properly?

More Info:

Kernel version : 4.1.15

ath10k firmware:10.2.4.25

ath10k driver : In-built

Thanks in advance

Surendran T

[igorpadykov]

Hi Surendran

reason for PCIe card not detected properly may be poor signal

or wrong clocks. One can try to narrow down issue checking with other verified

cards described in sect.40.4.2 Tests attached Linux Manual and nxp bsps on

Best regards
igor
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[surendrant]

Thanks ignorpadykov 

checked with few other PCIe wifi cards, works fine with those.

Further i'm trying to breakdown the issue. Cause could be in 
1.wrong clock/bad signal as you mentioned

2.Ath10k wifi driver 

3.PCIe driver (believe this won't give problem)

Any input on these ?

Reagrds,

Surendran

[igorpadykov]

Hi Surendran

please try to obtain updated driver for that kernel version from vendor of that card

Best regards
igor