[PATCH 2/3] dt: Remove obsolete description of powerpc boot interface

Grant Likely grant.likely at secretlab.ca
Tue Feb 1 07:20:48 EST 2011

On Mon, Jan 31, 2011 at 4:36 AM, Josh Boyer <jwboyer at linux.vnet.ibm.com> wrote:
> On Mon, Jan 31, 2011 at 12:45:05AM -0700, Grant Likely wrote:
>>32 and 64 bit powerpc support has been merged for a while now, but
>>the booting-without-of.txt document still describes 32 bit as not
>>supporting multiplatform, which is no longer true.  This patch fixes
>>the documentation.
>>Also remove references to powerpc-specific details outside of section
>>I in preparation to add details for other architectures.
> There's a line around 500 that starts:
>        "The kernel powerpc generic code does..."
> Perhaps the powerpc reference should be dropped there?


> Also, there are several mentions of "real Open Firmware", which are
> probably just fine, and prom_init(), which are probably arch specific.

The prom_init() reference is just an example, and so I'm okay with it
staying in.  The example is relevant to look at regardless of the
architecture you are working on.  Oh, but I should drop the reference
to every node requiring a "device_type" property.

> There is a section that talks about ranges that starts with:
>        "For a new 64-bit powerpc board, I...".


> Section III 5) has all kinds of powerpc specific stuff.  CHRP,
> pSeries, PAPR in the root node.  The references to Apple machines for
> examples are probably OK, but it shouldn't make PowerPC items as
> explicit requirements.

Right, fixed.

> Section III 5e) references a file that doesn't exist:
> arch/ppc64/kernel/setup.c


> Section V, paragraph 2 references a file that doesn't exist:
> arch/ppc64/kernel/prom.c

> Hope that helps you...
> josh

Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.

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