[coreboot] GPIOs on CS5536 based boards

Peter Stuge peter at stuge.se
Tue Sep 22 13:56:53 CEST 2009

Daniel Mack wrote:
> I'm developing on a CS5536 based board (ALIX.2D) and I'm trying to
> get access to the GPIO registers in order to set the LEDs on
> bootup.

Check out the 5536 data book on "Atomic Bit Programming" and/or look
at the Linux LED driver for reference. To program the GPIOs you have
to follow the algorithm outlined in 6.16.1.


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