[PATCH kernel] prom_init: Fetch flatten device tree from the system firmware

[Alexey Kardashevskiy]

On 04/06/2019 09:42, Segher Boessenkool wrote:
> Hi!
> 
> On Mon, Jun 03, 2019 at 12:56:26PM +1000, Alexey Kardashevskiy wrote:
>> On 03/06/2019 09:23, Segher Boessenkool wrote:
>>>> So I go for the simple one and agree with Alexey's idea.
>>>
>>> When dealing with a whole device tree you have to know about the various
>>> dynamically generated nodes and props, and handle each appropriately.
>>
>> The code I am changing fetches the device tree and build an fdt. What is
>> that special knowledge in this context you are talking about?
> 
> Things like /options are dynamically generated.

Generated by the guest kernel, after walking the tree and before making
the fdt blob? I cannot see it, what do I miss? Otherwise it is all in
slof and the same result is fetched one way or another.


> I thought you would just be able to reuse some FDT parsing code to
> implement my suggested new interface.  Maybe that was too optimistic.




-- 
Alexey