lkml.org 
[lkml]   [2014]   [Apr]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 19/28] nios2: Device tree support
On Apr 22, Arnd Bergmann wrote:
> On Friday 18 April 2014, Ley Foon Tan wrote:
>
> Are these all synthesized devices, or is there also some hardwired
> logic? It often makes sense to split out the reusable parts into
> a separate .dtsi file that gets included by every implementation.
>

In case you are not aware of this, devicetree files for Nios-II
SoCs are produced through an automated tool calle sopc2dts:

http://www.alterawiki.com/wiki/Sopc2dts
http://git.rocketboards.org/sopc-tools.git/

You feed it with a sopcinfo file (AFAIK, Altera's specific format) and
you obtain a full-fledged devicetree source file. Usually it works
out-of-the-box, although I like to go over it and fix ranges, whitespaces,
and do some cleaning.

So I'm wondering -given we have such superb tool- why would we want to
include the devicetree source's in the kernel?

First, we'll be only supporting a *specific* configuration. Second, the
dts is trivially easy to obtain.

The binding documentation should be enough specification, and there's no
need for further reference or examples.
--
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2014-04-25 00:01    [W:0.172 / U:0.612 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site