[U-Boot] dtb vs. kernel command line arguments

[Curt Brune <curt@cumulusnetworks.com>]

Hello -

I want to pass a number of arguments from u-boot to the booted kernel. 
The arguments are needed by user space applications, not the kernel.

I can think of two ways:

1. append args by setting "bootargs".
2. add nodes to the dtb before booting.

Is there a preferred way to pass information like this?

Like I said the arguments are not needed by the kernel device drivers, 
but by user space applications.

I like the structure of nodes in the dtb.

Cheers,
Curt