Merging ppc32 and ppc64

Kumar Gala kumar.gala at
Wed Aug 10 00:12:20 EST 2005

On Aug 9, 2005, at 8:30 AM, Segher Boessenkool wrote:

>>>>> I don't see the merge as changing the actual code that gets
> executed
>>>>> on any given platform very much, except in one respect: we are
> going
>>>>> to standardize on a flattened device tree as the way that
>>>>> information
>>>>> about the platform gets passed from the boot loader to the kernel.
>> ^^^^^^^^^^^^^^^^^^^^^***********^^^^^^^^******^
> Yes, and that is exactly what I do not want.  We are not going
> to require OF implementations that do not need yaboot or similar
> to pass a flattened device tree to the kernel, eh?  Also, there
> is no reason why something like yaboot (with an OF still running
> underneath) should have to care about anything device-tree related
> at all; the OS can just as easily ask the OF itself.

I was under the impression that ALL platforms regardless if the had a  
OF firmware or not would be using a flattened device tree.  Any  
conversion between an OF tree to a flatten tree would end up  
happening in boot wrapper code going forward.

- kumar

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