Modem wakeup...

Arnaud Patard (Rtp) arnaud.patard at
Tue Jul 24 14:56:20 CEST 2007

Nils Faerber <nils.faerber at> writes:


>>> I tried several times, both on V3 and V4.
>>> After I removed the command again everything returned to normal, device
>>> boots.
>>> What side effect could
>>> 	s3c2410_gpio_cfgpin(GTA01_IRQ_MODEM, S3C2410_GPF1_EINT1);
>>> possibly have concerning the NAND Flash?
>> too bad. My fault. sorry :(
> Really no problem!
> I rather try broken stuff than nothing at all. So also wrong tries are
> greatly appreciated! And besides... also failures serve a purpose: You
> learn how not to do it ;)
>> This should have been:
>> s3c2410_gpio_cfgpin(S3C2410_GPF1, S3C2410_GPF1_EINT1);
> OK, here we go: It does not "crash" anymore but it also does not help
> either.


> The interesting thing is that supposedly also during run-time the
> interrupt handler should at least printk() that the wake-up int has
> occurred, which should assumingly happen when calling the NEO.

That's what I was thinking too.

> But even at run-time exactly nothing happens.
> That leads to two assumptions:
> 1. The modem still needs to be configured to assert the modem wakeup
> signal - How?
> 2. The wakeup irq GPIO is still wired incorrectly?
> I think at this point we need help from someone who knows more about the
> modem or the wiring...

yeah, even if imho someone who knows the modem would be more valuable :)


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