On Wednesday, June 29, 2016 10:54:38 PM CEST Priit Laes wrote:

On Wed, 2016-06-29 at 21:33 +0200, Arnd Bergmann wrote:

quoted

What is the size of this nvram file? As it's board specific, I wonder
if we can simply include it inside of the DT verbatim. I remember
doing that (in the pre-dtb days, on real open firmware) for the
"spidernet"
ethernet driver.

It contains a bit too much info:

This is what CubieTruck requires:

http://dl.cubieboard.org/public/Cubieboard/benn/firmware/ap6210/nvram_a
p6210.txt

Ah, I had not realized that this is a text based interface rather than
a small binary blob with fixed offsets.

On the other hand, each line in there could be translated easily into
a separate DT property, and some of them (manfid/prodid, macaddr, ...)
look like they directly correspond to properties we already have.

As Arend said there is also the option of having a chip specific
nvram file (brcmfmac43362-sdio.txt) as a fallback when there is no
more specific module. How many of the lines in your example would
actually differ between the two? Does this affect all of them, or
just a subset that could be turned into a smaller set of DT
properties?

	Arnd