[meta-xilinx] Extending linux-yocto for zynq via a bbappend

[Philip Balister]

I'm adding support for a custom board via a custom bsp layer. It uses
the linux-yocto kernel from meta-xilinx.

One question I had is the meta-xilinx bbappend add a $MACHINE specific
file to the kernel recipe. I can deal with this in my bbappend, but I am
wondering if this is a bad thing since it is very possible to use
several bsp's, all using the linux-yocto kernel via bbappends. I guess I
need to ask some people how multiple bbappends work in this scenario.

Also, is there a git repo with all the patches applied somewhere? I have
a custom driver I need to add to the kernel and have a conflict to
resolve. The easiest way for me to do this is just rebase against a
branch with all the Xilinx patches applied.

Philip