On Wed, Nov 30, 2016 at 09:00:51AM +0000, Marcel Ziswiler wrote: > Hi Olliver > > On Fri, 2016-11-25 at 16:30 +0100, Olliver Schinagl wrote: > > This patch adds a method for the board to set the MAC address if the > > environment is not yet set. The environment based MAC addresses are > > not > > touched, but if the fdt has an alias set, it is parsed and put into > > the > > environment. > > > > E.g. The environment contains ethaddr and eth1addr, and the fdt > > contains > > an ethernet1 nothing happens. If the fdt contains ethernet2 however, > > it > > is parsed and inserted into the environment as eth2addr. > > My humble understanding of device tree fixup is that it works the other > way around (e.g. it is the device tree that usually gets fixed up). So > the least I would advice for this patch is to change its naming but > most possibly such code also does not belong into the common > fdt_support implementation.
I don't really have the context of this patch, but in the DT at least, you can specify the mac address using the local-mac-address property. I guess we should honor that too. But I don't really know how that's related to an alias. If the device is probed and the property is there, use it, otherwise don't. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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