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Date: Fri, 6 Jan 2012 15:03:03 -0600
From: Scott Wood <scottwood@freescale.com>
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To: Norbert van Bolhuis <nvbolhuis@aimvalley.nl>
Subject: Re: Cannot wake-up from standby with MPC8313
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On 01/06/2012 07:53 AM, Norbert van Bolhuis wrote:
> On 01/05/12 19:22, Scott Wood wrote:
>> On 01/05/2012 09:58 AM, Norbert van Bolhuis wrote:
>>> thanks for your response.
>>>
>>> not setting MSR_POW gives same result.
>>
>> OK, so you're not getting an interrupt regardless of low-power state.
>>
>> Check whether the interrupt is getting masked during standby preparation.
>>
>> Does the interrupt handler run when you're not trying to enter standby?
>>
> 
> 
> The GPIO/UART interrupt nor the PMC interrupt are being masked during
> standby
> preperation.
> The GPIO/UART interrupt works fine in "operational" mode.
> The PMC interrupt I do not know, is it possible to to get PMC interrupt
> without going to standby or deep-sleep ?

The PMC interrupt is mainly of interest when running as a PCI agent, to
be notified when the host changed the desired suspend state in config space.

What changes from operational mode to the test where you omit setting
MSR_POW?

Try dumping SIPNR/SIMSR and GPIER/GPIMR/GPDAT at various points.

-Scott