Good afternoon. I am using 2.4.25 denx Linux kernel in a MPC5200 custom board and I am looking for solutions to reduce power consumption. One possible solution is to reduce the frequencies using the CDM Registers.
But then I have a problem: the MPC5200 User Manual states that the Power On Configuration Register is a read only register, then I can only configure it using straps and reseting the board. And the CDM Configurations Register, which controls IPB and PCI clocks, is already configured for low frequencies by default. Does anyone have a sugestion on how to reduce the frequencies (Fsystem and XLB) without the need of a reset? Maybe there is a way of configuring the clocks that I couldn't figure out. Thanks in advance -- Sauro Salomoni Engeneer Ztec Fone: +55 61 322-2544 FAX:+55 61 224-7171 www.ztec.com.br
