[U-Boot-Users] Where is the CPU clock speed definition

Hi,

I am using a WALNUT with PPC405 200MHz CPU. I am trying to install the u-boot on this board. I have built the image. But before I put the image to the flash, I want to confirm one thing: do I have to configure the CPU speed for this board? I checked the file include/configs/WALNUT405.h. I only found a definition for CONFIG_SYS_CLK_FREQ, which is for external clock. Where is the CPU clock frequency defined?

Thanks!

Frank

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