Letux Kernel

Issue 440: Problem with running DM3730CBP100 on MPURATE 1 GHz

Reported by Nikolaus Schaller, May 2, 2013

U-Boot initializes the MPURATE to 1 GHz.

This tries to set some clocks and busses on higher speed and makes 
the GTA04 malfunction.

It diod work fine on the 2.6.32 kernel.

Comment 1 by Nikolaus Schaller, Jun 18, 2013

MPURATE itself is deprecated and has been disabled (since our U-Boot 
must initialize it for those kernels that still use it):

http://git.goldelico.com/?p=gta04-kernel.git;a=commit;h=a59a4d0054c39
ce0d5d45d7159c1ca70323956de

Latest 3.7-neil+ kernel has not yet been tested on 1 GHz CPUs.

Comment 2 by Nikolaus Schaller, Jul 25, 2013

Here is a blog describing similar problems with the BeagleBoard XM:

http://teknoman117.wordpress.com/2013/07/24/beagleboard-xm-1-ghz-oper
ation-safely-and-reliably/

"the last time it was safe was kernel 3.0.28 back in early 
2012"

Comment 3 by Nikolaus Schaller, Jul 31, 2013

Maybe this "bug" has gone by upgrading to 3.11 and the 
related OMAP3 fixes.
Owner: marekb

Comment 4 by Nikolaus Schaller, Oct 13, 2013

I have no longer seen problems with this.
Status: Fixed

Created: 11 years 24 days ago by Nikolaus Schaller

Updated: 10 years 7 months ago

Status: Fixed

Owner: Marek Belisko

Labels:
Type:Defect
Priority:Critical