DTS files, 83xx, clock frequencies

Scott Wood scottwood at freescale.com
Wed Dec 19 10:59:20 EST 2007

Russell McGuire wrote:
> I note that in most of the 83xx dts config files that the different
> frequency fields are being populated with non-zero numbers. i.e. bus-freq,
> clock-freq, core-freq, etc...
> Isn't default behavior that these fields are kept from the <BIOS> U-boot
> during boot, if a zero is present?

U-boot overwrites those values regardless of whether they were zero in 
the dts.

> Is there any advantage to resetting them
> within the dts file during linux boot up?

No, and it doesn't.  If you're looking arch/powerpc/boot, then that's 
for compatibility with non-device-tree-aware u-boots.


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