On Thu, Aug 07, 2008 at 04:12:54PM +1000, David Gibson wrote:
On Wed, Aug 06, 2008 at 11:46:47AM -0500, Timur Tabi wrote:
quoted
On Wed, Aug 6, 2008 at 1:02 AM, Grant Likely [off-list ref] wrote:
quoted
From: Grant Likely <redacted>
of_lookup_stdout() is useful for figuring out what device to use as output
for early boot progress messages. It returns the node pointed to by the
linux,stdout-path property in the chosen node.
I thought linux,stdout-path is deprecated are we're supposed to be
using the aliases node instead?
During the ePAPR process this idea came up - standardising a 'stdout'
alias that would replace linux,stdout-path in chosen. However that
was done in ignorance of the history of the linux,stdout-path property
and its connection to the stdout ihandle in chosen. In any case, the
proposed 'stdout' alias didn't make the final cut for ePAPR, so how to
address this for flat-tree systems is still an open question.
So, seeing as settling on a way to determine stdout still up in the air,
it probably makes sense to condense that code down to a single
authoritative function so that changes in this area are contained in one
place. For now, I'll stick with decoding linux,stdout-path and on Sparc
decoding the ihandle with the expectation that there will be further
refinements to be made.
g.