[ath9k-devel] AR9330 hornet board stops beaconing after a few days (0xdeadbeef)

[Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>]

ath9k fellows,

as it seems no one could find the cause for this problem so far. I'd therefore
like to create a workaround by checking one/some registers for 0xdeadbeef and
reset the chip if this is found.

Can anyone recommend a register which should never go 0xdeadbeef in a normal case?

From what i've seen, AR_CFG (0x0014) might be a good choice. My regdumps say:

bad regdump:  0x000014 0xdeadbeef    
good regdump: 0x000014 0x0008010a

Unfortunately I don't have documentation to find out if this register can ever
go deadbeef in a normal case. :)

What do you think? (of course, a proper solution is still appreciated ...)

Cheers,
	Simon


On Wed, Sep 05, 2012 at 04:20:52PM +0200, Sven Eckelmann wrote:
> On Wednesday 05 September 2012 07:08:47 Adrian Chadd wrote:
> > I don't think it's a stuck beacon WAR issue here; 0xdeadbeef really
> > does read like the MAC has gone to sleep.
> > 
> > Where's the complete register dump hiding?
> 
> It was not sent to the public mailing lists due to the size. You will receive 
> the dump mentioned in the first mail in some minutes.
> 
> Kind regards,
> 	Sven


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