linux-kernel - RE: [v6] wlcore: add missing nvs file name info for wilink8

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Date:   Sun, 13 Aug 2017 13:07:49 +0000
From:   "Reizer, Eyal" <eyalr@...com>
To:     Tony Lindgren <tony@...mide.com>
CC:     Kalle Valo <kvalo@...eaurora.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "sebastian.reichel@...labora.co.uk" 
        <sebastian.reichel@...labora.co.uk>,
        Julian Calaby <julian.calaby@...il.com>
Subject: RE: [v6] wlcore: add missing nvs file name info for wilink8

> > > >
> > >
> > > Sure, just want to make sure we are not trying to add work around just
> for
> > > A couple of faulty devices.
> > >
> > > > > I have verified using a couple of com6 modules with an am335x-evm
> and
> > > > they had mac addresses read ok.
> > > >
> > > > Sounds like there are multiple variants of the wl12xx
> > > > available then.
> > > >
> > > I am trying to find out internally if there is a possibility that there were
> > > devices
> > > Produced in the past where the internal fuses were not programmed
> with a
> > > valid
> > > Address before being assembled into the modules.
> > >
> >
> > Seems like MAC address for wilink6/7 was added to devices that were
> produced  around Q3 of 2010
> > In case you still have this omap3-evm up and can just do a quick check for
> me as I don't have this board, can you try using the following command:
> >
> > cat /sys/bus/platform/drivers/wl12xx_driver/wl12xx.0.auto/hw_pg_ver
> >
> > and let me know what the output you get is?
> 
> Sure, my omap3-evm has hw_pg_ver set to 3.
> 
Ok, you have a PG3.0 device. Mac address was added in PG3.1 so it explains
Why the mac address remains zero and not read from fuse.
Will use random mac in case it is read a zero.

Best Regards,
Eyal