[Mer-discuss] Mer and SmartQ

[You Sheng]

Hi David,

Do you have any ideas why we've seen MMC corruption issues? One thought is
> that
> the kernel is allowing the battery voltage to drop too low before powering
> down?
>
> If I am not mistaken, you mean inand flash corruption. Sandisk inand
datasheet says it work voltage range 2.7V to 3.6V, Q5/Q7 hardware shutdown
system power when voltage under 2.9V. Sandisk response that  the iNAND
failure is due to write abort which is most likely occurring during write,
when the operation is unexpectedly terminate due to the interrupt of power
supply to iNAND/Platform. Maybe inand power not stable, but we can't make
sure it.

I've not measured at the hardware level; we're seeing battery life of just a
> day
> whilst idling.


Our measure data, running: 3.7V 60% backlight, 230 -270 mAh, suspend: 40-70
mAh. Power consumption is not good.


>
>
> >     * Could we get schematics and/or a list of used electronics and
> >     their GPIO
> >     connections/I2C addresses/datasheets/... for the Q5 and Q7?
> Anything on this?
>
> Basic GPIO defined in include/arm/plat-s3c64xx/hhtech_gpio.h
GPIO control interface: drivers/char/hhtech_gpio.c
If you need more documentation (full schematics), please tell us.

David
>
> --
> "Don't worry, you'll be fine; I saw it work in a cartoon once..."
>

Best Regards
You Sheng
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