[U-Boot] Low BogoMIPS on MPC8541

Luigi 'Comio' Mantellini luigi.mantellini.ml at gmail.com
Tue Oct 27 16:29:26 CET 2009


Hi All,

I'm working on a stripped-down mpc8541 board (that has just 
a serian and twe enets).
I have an issue on delay calibration. In fact at boot time, I see the 
following linux printk message on the serial console:

....
Calibrating delay loop... 83.20 BogoMIPS (lpj=166400)
....

This value seems to be too low and I suspect an error propagated from u-boot.

Can anyone help me to understand a good way to investigate this problem? which 
registers or configuration values I need to check?

I will post the necessary snips of code or configuration if required.

Thanks a lot for your help,

ciao

luigi


-- 
Luigi 'Comio' Mantellini

R&D - Software
Industrie Dial Face S.p.A.
Via Canzo, 4
20068 Peschiera Borromeo (MI), Italy
Tel.:  +39 02 5167 2813
Fax:   +39 02 5167 2459
Email: luigi.mantellini at idf-hit.com


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