Hi John,
John Linn wrote:
It appears that u-boot expects an alias list in the device tree. I only found this in the code for the fdt processing.
Yes. The /aliases node gives tremendous advantages.
I'm working on getting our device tree correct to be able to allow u-boot to alter the device tree.
Good. The "common/fdt_support.c" file should have all the utilities you need already written, assuming you have a proper /aliases node.
Is this all that's needed as my device tree is good as far as the kernel booting with it and u-boot passes it fine to the kernel such that it boots?
Or somewhere there's some documentation that I didn't read and should have?
Are you telling us to WTFM? ;-)
Adding the /aliases node and properties should be sufficient. This is not documented in any obvious way in u-boot (sorry). I don't see any documentation in Documentation/powerpc/booting-without-of.txt either. It probably should be added. It probably should be considered to be one of the "Required nodes and properties".
The /aliases node is a standard Open Firmware-ism, but it isn't real obvious to non OF gurus (and I'm not a OF guru).
Thanks, John
Best regards, gvb