Hi David,
As stated in the PSP Release Notes, he Power Management firmware sources can be found here: http://arago-project.org/git/projects/?p=am33x-cm3.git;a=shortlog;h=refs/heads/master under the AM335xPSP_04.06.00.11 tag.
Here is a link to the commit: http://arago-project.org/git/projects/?p=am33x-cm3.git;a=commit;h=750362868d914702086187096ec2c67b68eac101
Best regards,
Miroslav
