[meta-freescale] SX-SDCAN Ath6kl firmware

[Morgan McKenzie]

Hi Otavio,

I'm sorry I left this on the backburner for so long - I solved the problem a little while ago and I've been meaning to send this and just haven't had the chance. 

I've managed to solve the issue to my satisfaction; I have the board booting and reliably connecting to wifi. However, I don't think that the way I did it would qualify at all for being put back into the repo. For anyone else who might be having/might have the issue, this would probably help though...
in blacklist.conf, which goes in /etc/modprobe.d/:>    install ath6kl /bin/false(note that just doing an ordinary blacklist actually still resulted in it trying to load when the sdio was recognized, which caused the boot sequence to hang for 60 seconds as the module searched for the board data file, so I had to force it to fail...)
And then in an init file, which ignores the blacklist:>   modprobe --ignore-install ath6kl


--Morgan
From: rmtm at uvic.ca
To: otavio at ossystems.com.br
Date: Thu, 27 Feb 2014 17:14:59 -0700
CC: meta-freescale at yoctoproject.org
Subject: Re: [meta-freescale] SX-SDCAN Ath6kl firmware




Hi Otavio,
To be honest I'm not completely sure about it being a timing issue, it's just my best guess. When the board boots up it hangs and isn't able to load the module, but if I log in, rmmod the module, and insmod the module, it works. All the error messages I get during boot are relating to the module file not being found, which makes me think that the file system isn't ready (or perhaps some other system service - maybe udev??).
Unfortunately I've been swamped with work the last few days and haven't been able to take too much of a look at it. I'll be spending some time on it over the weekend so I will probably have a better idea by Monday.
Thanks for your interest! 
Regards,
Morgan McKenzie


> Date: Wed, 26 Feb 2014 18:31:36 -0300
> From: otavio at ossystems.com.br
> To: rmtm at uvic.ca
> CC: meta-freescale at yoctoproject.org
> Subject: Re: [meta-freescale] SX-SDCAN Ath6kl firmware
> 
> Hello Morgan,
> 
> On Wed, Feb 26, 2014 at 5:17 PM, Morgan McKenzie <rmtm at uvic.ca> wrote:
> > I sent a message a while about getting an SX-SDCAN module working on a
> > i.mx6qSabreAuto board.  Several months later with a lot of banging my head
> > against various walls (or at least that's what it seemed like) I believe
> > that I've finally figured out what was going on -  it is configured to load
> > as a module in my kernel configuration due to something else it requires
> > also being a module; and as far as I can tell, module is trying to load
> > before the file system is fully ready (or something like that) and therefore
> > cannot find the required board configuration files.
> >
> > So if anyone runs into a problem with this chip in the future that's at
> > least a possible cause. I'm going to try to figure out a good way of solving
> > the problem and supply a patch if I can - but to be honest I don't know
> > nearly enough about Yocto/linux to do it properly so that might not happen..
> > (if anyone else has any good ideas on that I'm very open to suggestion!)
> 
> I'd like to understand the issue so we may try to come up with a fix
> for it. I don't have a SabreAuto board myself (neither the WIFI
> adapter) but I have some understanding about Linux and Yocto Project
> and may be able to help.
> 
> Could you explain me how did you get to the conclusion it is an order issue?
> 
> Regards,
> 
> -- 
> Otavio Salvador                             O.S. Systems
> http://www.ossystems.com.br        http://code.ossystems.com.br
> Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750
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