Booting the Linux/ppc64 kernel without Open Firmware HOWTO (v3)
benh at kernel.crashing.org
Tue May 24 17:55:02 EST 2005
On Tue, 2005-05-24 at 09:50 +0200, Segher Boessenkool wrote:
> > +/*
> > + * The Open Firmware 1275 specification states properties must be 31
> > bytes or
> > + * less, however not all firmwares obey this. Make it 64 bytes to be
> > safe.
> > + */
> Not true. There is no restriction on the length of properties
> (or property _names_, which I guess is what you meant).
Yes, we meant names, and yes, there is a limit of 31 characters + 0,
that is 32 bytes (see "220.127.116.11.1 Property names" in 1275. BTW. Do you
have a useable version of this document ? mine is a totally broken PDF
made from a crappy .ps :)
IBM firmware broke that limit in a couple of places though...
> is the 31-char restriction on _node_ names, though (and the node
> name is only the part before the optional @ or : -- and at a
> minimum, the part after @ but before : is needed to disambiguate
> the node).
Yes, I know all that.
> I didn't review the rest of the code, sorry.
No worries :)
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