[U-Boot-Users] Imminent u-boot-fdt pull request

Jerry Van Baren gerald.vanbaren at smiths-aerospace.com
Fri May 25 20:31:11 CEST 2007

Scott Wood wrote:
> Jerry Van Baren wrote:
>>> What about doing a search for device_type = "cpu", rather than 
>>> looking for a specific CPU name?  The Linux bootwrapper does it this 
>>> way.  It also has the benefit of working when there's more than one CPU.
>>> -Scott
>> I deeply regret the confusion I caused by pushing the "Send" when I 
>> meant to push "Write" to start a new, unrelated, message.  My updated 
>> re-send, as you probably have figured out by now, is more coherent.
>> OF_CPU is defined in the board-specific header file, e.g. 
>> configs/MPC8360EMDS.h, pulled in by config.h.  Since I am missing the 
>> #include <config.h> in the two files being discussed, OF_CPU is 
>> undefined and the string concatenation trick makes it silently disappear.
> Sure... I was just suggesting a more robust method, that doesn't rely on 
> the board config file to define the CPU name.
> -Scott

Ah, now I follow.  That is worth considering.  That would make some 
assumptions too, just different ones.

Of the top of my head...
* All CPUs are clocked the same (unlikely to be a problem)
* That the CPU actually _needs_ the fixups (currently they all get the 
fixup so it isn't currently a problem)

As long as it works for the bootwrapper, it would work for u-boot.  The 
two are imperfect subsets of each other, however.


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