Re: am3517: geting MMC working

[Yegor Yefremov <yegor_sub1@visionsystems.de>]

Am 20.07.2012 09:39, schrieb Yegor Yefremov:
> Am 20.07.2012 09:28, schrieb T Krishnamoorthy, Balaji:
>> On Fri, Jul 20, 2012 at 3:08 AM, Paul Walmsley <paul@pwsan.com> wrote:
>>> On Thu, 19 Jul 2012, S, Venkatraman wrote:
>>>
>>>> >From this, one can only infer that the card is not responding at all,
>>>> and all attempts
>>>> are returning with a timeout (CTO=Command Time Out).
>>> Looks to me like the card is responding to CMD8, CMD55, ACMD41, and CMD0.
>>> It's only CMD52 and CMD5 that are timing out.  Aren't those timeouts
>>> expected with a SD memory card?
>> yes, those timeouts are expected for SD card.
>> The failure is due to irq not received/missing for last CMD0.
>> Hi Yegor, Can you provide details for the SD card being used.
> 
> This is Apacer 2GB. In 3.3-rc7 I have no problems with it. Should I enable debugging in 3.3-rc7 and post the output?

I found the solution:

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index e4fc88c..0ab26ab 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -359,7 +359,7 @@ static void omap3_pm_idle(void)
 {
 	local_fiq_disable();
 
-	if (omap_irq_pending())
+	if (omap_irq_pending() || !omap3_has_io_wakeup())
 		goto out;
 
 	trace_power_start(POWER_CSTATE, 1, smp_processor_id());

I've seen this hack for some on the mailing list. I think Mark A. Greer introduced it, but I don't remember for sure. Can this patch be applied as it is or there are some infrastructure changes required?

Best regards,
Yegor