[OpenWrt-Devel] [PATCH] ath10k: reset chip after supported check

Ben Greear greearb at candelatech.com
Mon Mar 25 11:55:49 EDT 2019

On 3/25/19 5:14 AM, Michał Kazior wrote:
> On Sat, 23 Mar 2019 at 08:20, Arend Van Spriel
> <arend.vanspriel at broadcom.com> wrote:
>> * resending with corrected email address from Kalle
>> --------------------------------------------------------------------
>> + Michał
> Thanks!
>> On 3/22/2019 8:25 PM, Christian Lamparter wrote:
>>   > On Friday, March 22, 2019 7:58:40 PM CET Tomislav Požega wrote:
>>   >> When chip reset is done before the chip is checked if supported
>>   >> there will be crash. Previous behaviour caused bootloops on
>>   >> Archer C7 v1 units, this patch allows clean device boot without
>>   >> excluding ath10k driver.
> Can you elaborate more a bit? What kind of crashes are you seeing?
> What does the bootloop look like? Do you have uart connected to
> diagnose?
> Didn't C7 v1 have the old QCA9880 hw v1 which isn't really supported
> by ath10k? I recall the v1 chip was really buggy and required
> hammering registers sometimes to get things working.

The crash is related to the v1 chip.  Is there a good way to detect
that this is the chip in question and only apply this work-around
for the problem chip?


Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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