the following patch was just integrated into master: commit ef33db01b31f49c82de3e740eb6a11fc1114f56a Author: Timothy Pearson tpearson@raptorengineeringinc.com Date: Fri May 8 00:32:47 2015 -0500
cpu/amd/model_10xxx: Add missing ACPI _PSD object
The ACPI power state generator for AMD 10xxx CPUs did not generate the _PSD object required for reliable PowerNow! operation. Without a correct _PSD object PowerNow! does not know the required core clock relationships, potentially causing unstable system operation.
Generate the _PSD object in accordance with the BKDG Rev. 3.62.
Change-Id: I255a4837ab29ff1b0874daf189ffb61798645795 Signed-off-by: Timothy Pearson tpearson@raptorengineeringinc.com Reviewed-on: http://review.coreboot.org/10142 Reviewed-by: Aaron Durbin adurbin@chromium.org Tested-by: build bot (Jenkins)
See http://review.coreboot.org/10142 for details.
-gerrit