Please explain the logic on the MACHINEOVERRIDES ordering for meta-fsl-ppc:qoriq

[Bob Cochran <yocto@mindchasers.com>]

Hi,

For the past few months, I have patched out the way meta-fsl-ppc qoriq 
constructs MACHINEOVERRIDES because I don't see the logic in it.  It's 
my preference that the overrides I set for my specific machine (e.g., 
p1010rdb, t1040rdb, or custom-machine) are found over the default 
overrides in meta-fsl-ppc (e.g., init-ifupdown/qoriq-ppc/interfaces).

By default, if I set "p1010rdb" as the MACHINE in local.conf I get:

MACHINEOVERRIDES="p1010:p1010rdb:qoriq-ppc:e500v2"

As you know, FILESPATH is in part built by using MACHINEOVERRIDES and 
the path is built working right to left, so a file in an e500v2 override 
is found before one under p1010rdb.

Shouldn't the more specific override be to the right?

I would think we want to produce the following:

MACHINEOVERRIDES="e500v2:qoriq-ppc:p1010:p1010rdb"

If I'm wrong, please help me to understand why.

If there is agreement, then I would like to submit patches to change the 
meta-fsl-ppc conf files.

Thanks

Bob