u-boot fix to charge empty battery

Philipp Hug debian at hug.cx
Thu Oct 9 15:52:23 CEST 2008

Ok, I do now have a patch ready that fixes most low-power issues:

* Always wait until battery is charged enough before continuing the boot
-> but still allow boot to continue if no battery is present
* Cancel the shutdown timer during charging
* Make sure 1A charger charges with 1A
* Detect if power button has been pressed for long enough at the
beginning of the startup sequence
* Only pulse vibrator and LED when startup is initiated
* Keep CPU @200Mhz  until charging is complete
-> I hope I didn't break USB ;-)
* Abort charging if no USB power is present

Available here:


More information about the devel mailing list