Re: device tree for arm soc ?

To: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
Subject: Re: device tree for arm soc ?
From: Warner Losh <imp%bsdimp.com@localhost>
Date: Sun, 22 Sep 2013 14:27:38 -0600

On Sep 21, 2013, at 1:05 PM, Manuel Bouyer wrote:
> Linux solved this by providing a device tree at boot time, which describe
> the hardware including the device to I/O ping associations.
> The device tree file is loaded at the same time as the kernel by the
> boot loader. FreeBSD has also gone this route. Of course they're not
> using the same DT ...

The goal in FreeBSD land is to use the same DT. We're just not there yet, so 
some boards need custom FDTs to compensate for those DTs that violate the 
OpenFirmware mantra that the DT just describes hardware and allows too many 
linuxisms to creep in...

Warner

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