dont-smoke.patch (draw only 100mA in u-boot)
joerg
joerg.twinklephone at gmx.de
Tue Mar 25 10:02:36 CET 2008
Am Di 25. März 2008 schrieb Andy Green:
> - gpg control packet
> Somebody in the thread at some point said:
>
> > How do you tell anything to NEO _prior_ to boot???
> > Power management should simply avoid drawing >100mA while booting (e.g.
> > no/dimmed backlight, NO bat charging, no GSM/BT/WiFi etc).
>
> Yes as I understood it that is where it got left, although I read
> soemthing about it still being >100mA even so, but it is "better" than
> pulling the whole 500mA.
>
> Andrzej, this relates to the whole U-Boot debate really. I take your
> point but at the same time the pcf50633 support in U-Boot is another
> chopped down un- or differently- maintained version of the Linux driver.
> We have different bits of logic about the power management spread in
> two worlds with a dead time moving inbetween them, and there is no
> overall guide for what should happen when.
Think I'd like to adopt this topic in a few weeks. Fits perfectly. :-)
Shouldn't we have a goldcap parallel to (maybe removed) battery, to buffer
spikes?
cheers
jOERG
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