[U-Boot] [PATCH] mxs: fixed battery boot on imx233-olinuxino-micro

[Marek Vasut]

On Wednesday, May 21, 2014 at 04:01:55 AM, Peter Schumann wrote:
> This patch makes it possible to boot from battery on olinuxino Boards
> from Olimex.
> 
> We should not set DOUBLE_FETS in HW_POWER_MINPWR, it makes my system
> reset with in seconds while running on battery power.
> 
> Also  mxs_power_enable_4p2() should not be called if running from
> battery. It switches VDDD and VDDA to LinReg mode and than turns off
> the VDDIO DCDC supply. At this point the system resets.
> If we run on battery this is no good idea because the LinRegs are
> chained behind VDDIO and battery voltage seems not enough to power
> the system from LinRegs.
> Also is the power system already running on DCDC after BootROM hands
> over to u-boot, so no sense in switching back to LinRegs.

Sorry for the late reply, I'm somewhat congested recently. In the meantime, I 
was not able to test this yet. But you're missing Signed-off-by: line, can you 
please re-send this with a proper SoB line [1] ?

[1] http://www.denx.de/wiki/U-Boot/Patches#General_Patch_Submission_Rules

Thanks

Best regards,
Marek Vasut