David Gibson wrote:
On Sat, Aug 02, 2008 at 08:51:54PM -0400, Jerry Van Baren wrote:
[snip]
I've CC:ed David Gibson in case he has some advice - the concept is to indicate a dereference of /aliases nodes so that us lazy engineers don't have to cut'n'paste the whole long path from the alias. Kumar originally proposed to do it automagically and I countered proposing using "*" to indicate the next path name should be looked up in /aliases and the result used instead (i.e. dereferenced). Discussion thread: http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/43575/focus=44941
No, I really don't think using this "dereference" character is a good idea. If you're going to expand aliases, you should do it as real OF does - see section 4.3 of IEEE1275. Essentially it's the *lack* of a leading '/' character that triggers alias expansion. So you could use e.g. /soc8360@e0000000/ethernet@e0000400 or soc/ethernet@e0000400 or ethernet0
Ahh, I didn't read far enough. The algorithm in section 4.3 is much better thought out than either of our proposals.
[snip]
If you're interepreting them in one place, you should probably interpret them everywhwere and have a single "resolve pathname" function.
Yes.
In fact, I should quite possibly put such a function into libfdt.
That would be very useful. :-)
Thanks, gvb