How to change Bus speed for MPC8xx CPU
wd at denx.de
Sun May 18 20:43:00 EST 2003
In message <E19HLVn-000N0u-00.xol-mail-ru at f20.mail.ru> you wrote:
> As far as I understand there is a bootloader provided by board
> manufacturer this is something like BIOS in desktop pc.
> And there should be part of the kernel running before
> the kernel starts. So which one of them do the job with
> clocks? Or probably both of them.
Normally the clocks are set in the bootloader only.
Linux does not change these parameters.
> And there the kernel loader sources are located under
> /usr/src/linux tree. I would like to put my patch inside and paly
> with it.
> My board is runnig from external clock of 10M and boot monitor
> has parameter called mulitplier which is equal to 10.
So it seems there is no patch needed at all. Just change this
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
No one can guarantee the actions of another.
-- Spock, "Day of the Dove", stardate unknown
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
More information about the Linuxppc-dev