SA-11xx PCMCIA can't detect cards present on boot

Folks:
	It looks like the vmlocking merge borked the SA-11xx PCMCIA
driver's
	ability to detect cards that are present on boot, which is
key 
	to at least the hpcarm port's ability to with root on a CF
card.

	Looking at the changes in
sys/arch/arm/sa11x0/sa11x1_pcic.c, the
	initial card-attachment (and card-event thread creation)
was at
	one point done via a kthread... the vmlocking merge in rev.
1.14
	changed it to be called directly from
sacpcic_attach_common().
	What this means in practical terms is that cards present at
boot
	don't attach presumably because other socket state (like
power,
	etc.) hasn't yet been set up.  When card detection is
deferred
	until later, all works as before.

	The create-one-kthread-to-spawn-another code is somewhat
silly,
	so I've replaced it that with socket attach finalization
via
	config_interrupts() instead... 

	Anyone have any objections to the patch below?  I know the
code
	needs whacking to fix the device_t usage, but I don't want
to
	mix that up with the bugfix..

Thanks,
--rafal

-- 
  Time is an illusion; lunchtime, doubly so.     |//|     
     Rafal Boni
                   -- Ford Prefect               |//|     
rafalpobox.com

Rafal Boni wrote:
> Folks:
> 	It looks like the vmlocking merge borked the SA-11xx
PCMCIA driver's
> 	ability to detect cards that are present on boot,
which is key 
> 	to at least the hpcarm port's ability to with root on
a CF card.

FWIW, this is the same as port-hpcarm/37227.  I probably
should have 
looked in GNATS 1st.

--rafal