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Date:   Thu, 24 Nov 2022 12:14:07 +0000
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Subject: Re: AP6275 / bcm43752 pcie on mainline brcmf
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To:     Arend van Spriel <arend.vanspriel@broadcom.com>,
        Shengyu Qu <wiagn233@outlook.com>
Cc:     franky.lin@broadcom.com, linux-wireless@vger.kernel.org
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From:   Andy Green <andy@warmcat.com>
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On 11/24/22 09:42, Arend van Spriel wrote:
> On 11/18/2022 6:41 AM, Andy Green wrote:
>>
>>
>> On 11/17/22 21:52, Arend Van Spriel wrote:
>>
>>> I see. So could you load bcmdhd and provide log. Preferably with 
>>> higher debug level. It also has a module parameter for it. I think it 
>>> is called dhd_msg_level and please set it to 0x817.
>>
>> It's here:
>>
>> https://warmcat.com/ap6275p-dhd-log1.txt
> 
> Hi Andy,
> 
> Thanks for the log. Together with the dhd driver sources I could make 
> some sense of it. Perhaps you can try the following hack and see if we 
> make it over the first hurdle.

OH!  I found that the line below should be count, not sizeof(count).

> +    addr -= sizeof(count);
> +    memcpy_toio(devinfo->tcm + addr, seed, count);
> +}

With that, you were right on the money, the firmware comes up

[    3.796062] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43752/2 
wl0: Jul 12 2022 18:54:54 version 18.35.387.23.146 (g412cc5ec) FWID 
01-93c53be6

along with

wlP2p33s0: flags=4098<BROADCAST,MULTICAST>  mtu 1500
         ether d4:9c:dd:f5:bf:7e  txqueuelen 1000  (Ethernet)
         RX packets 0  bytes 0 (0.0 B)
         RX errors 0  dropped 0  overruns 0  frame 0
         TX packets 0  bytes 0 (0.0 B)
         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

I will try get it to scan...

... any way, good job!

-Andy