devicetree.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jean-Francois Moine <moinejf-GANU6spQydw@public.gmane.org>
To: Sebastian Hesselbarth
	<sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Gabriel Dobato <dobatog-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Russell King - ARM Linux
	<linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Jason Cooper <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>,
	Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>,
	Gregory Clement
	<gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Subject: Re: [PATCH] ARM: dts: mvebu: add ethernet to the cm-a510 board
Date: Fri, 6 Feb 2015 08:58:55 +0100	[thread overview]
Message-ID: <20150206085855.7b8d494b@armhf> (raw)
In-Reply-To: <54D3EB26.9020909-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

On Thu, 05 Feb 2015 23:13:58 +0100
Sebastian Hesselbarth <sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> > At this moment, I am trying to configure the framebuffer, but as Moine
> > told me,it seems there is not video driver support for this board in
> > DT... :( .  
> 
> Not quite true. Video is made up of at least 4 different devices:
> Framebuffer, GPU, Decode engine, and usually DVI/HDMI transmitter or
> VGA.
> 
> We do have a driver for the framebuffer (armada_drm) and there is great
> work from Russell King and others on the GPU and Decode engine (IIRC).

Yes, but it has no DT support. Mine has.

> If you are using the sb-a510, I can see from the manual, that DVI
> transmitter is SIL164.. AFAIS there is a driver for it, that maybe
> needs some polishing. Nobody ever tested VGA, but it shouldn't be too
> hard to add support for it as it is directly supported by the
> framebuffer HW.

This asks for some VGA encoder/connector module.

Actually, as Gabriel told me that his screen is directly connected to
the RGB LCD output, I wrote a simple panel for him. This module just
gets the display timings from the DT.

> One quite important driver at least for Dove is a clock source for
> video. Internal clock generators for video are way to limited with
> respect to frequencies to allow any useful resolution.

From my previous tests with the si5351 in the Cubox, most video modes
should work without external clocks.

> I'll see if I can have a look at the dts stuff this weekend.. that
> way we'll have at least the basic done before moving to the other
> devices.

-- 
Ken ar c'hentañ	|	      ** Breizh ha Linux atav! **
Jef		|		http://moinejf.free.fr/
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

  parent reply	other threads:[~2015-02-06  7:58 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <E1YH5bU-0005mG-3L@bombadil.infradead.org>
     [not found] ` <E1YH5bU-0005mG-3L-PfSpb0PWhxZc2C7mugBRk2EX/6BAtgUQ@public.gmane.org>
2015-01-30  9:44   ` [PATCH] ARM: dts: mvebu: add ethernet to the cm-a510 board Sebastian Hesselbarth
2015-01-30 10:31     ` Jean-Francois Moine
2015-01-30 11:00       ` Sebastian Hesselbarth
     [not found]         ` <54CB6440.1010002-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-01-30 11:41           ` Jean-Francois Moine
2015-01-30 12:03             ` Sebastian Hesselbarth
2015-01-30 12:39               ` Jean-Francois Moine
2015-01-30 12:50                 ` Sebastian Hesselbarth
2015-02-01 14:12                   ` Gabriel Dobato
2015-02-01 14:16                   ` Gabriel Dobato
2015-02-05 22:13                     ` Sebastian Hesselbarth
     [not found]                       ` <54D3EB26.9020909-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-06  7:58                         ` Jean-Francois Moine [this message]
2015-02-06 10:05                           ` Sebastian Hesselbarth
2015-02-06 10:50                             ` Jean-Francois Moine
2015-02-06 10:52                             ` Russell King - ARM Linux
2015-02-06 10:48                           ` Russell King - ARM Linux
2015-02-06  9:19                       ` Gabriel Dobato
     [not found]                         ` <54D48711.8060903-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-06 10:00                           ` Sebastian Hesselbarth
     [not found]               ` <1507191.iMZ4oC8rrr@stargate>
2015-01-30 13:07                 ` Sebastian Hesselbarth
2015-01-30  6:06 Jean-Francois Moine
  -- strict thread matches above, loose matches on Subject: below --
2015-01-30  6:06 Jean-Francois Moine
2015-01-30  6:06 Jean-Francois Moine

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20150206085855.7b8d494b@armhf \
    --to=moinejf-ganu6spqydw@public.gmane.org \
    --cc=andrew-g2DYL2Zd6BY@public.gmane.org \
    --cc=devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=dobatog-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    --cc=gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org \
    --cc=jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org \
    --cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
    --cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org \
    --cc=robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
    --cc=sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).