From: martinwguy@gmail.com (Martin Guy)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ep93xx: add framebuffer support to edb93xx boards
Date: Sat, 8 Jan 2011 20:52:59 +0100 [thread overview]
Message-ID: <AANLkTi=uw2sxizgDBSnDQVMaokikirDQgxt1w6sP4C05@mail.gmail.com> (raw)
In-Reply-To: <0D753D10438DA54287A00B027084269764C41240B9@AUSP01VMBX24.collaborationhost.net>
On Fri, Jan 7, 2011 at 11:38 PM, H Hartley Sweeten
<hartleys@visionengravers.com> wrote:
> The ep9307, ep9312, and ep9315 variants of the ep93xx processor include the
> raster engine needed for framebuffer support.
>
> This allows the EDB93xx boards with those processors to use the framebuffer
> driver.
>
> Tested on an EDB9307A with the following kernel parameters:
> ? ? ? ?video=640x480-16 at 60
> ? ? ? ?video=1024x768-16 at 60
>
> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
The code looks good, but there are hardware bugs in the EP93XX that
make the screen image jump a few pixels to the right once every few
seconds. We found that 800x600-16 and 1024x768-8 were the highest
modes that are stable.
Did you find 1024x768-16 to be stable, say when running X and moving a
window? The effect was most visible on a phosphor CRT, less noticeable
on an LCD.
M
next prev parent reply other threads:[~2011-01-08 19:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Acuuu5ny+zlvst9wTH+OPBMrDizm+g==>
2011-01-07 22:38 ` [PATCH] ep93xx: add framebuffer support to edb93xx boards H Hartley Sweeten
2011-01-08 19:52 ` Martin Guy [this message]
2011-01-10 16:59 ` H Hartley Sweeten
2011-01-26 23:51 ` Ryan Mallon
2011-01-27 0:04 ` H Hartley Sweeten
2011-01-27 0:10 ` Ryan Mallon
2011-01-27 5:28 ` Martin Guy
2011-01-27 16:43 ` H Hartley Sweeten
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='AANLkTi=uw2sxizgDBSnDQVMaokikirDQgxt1w6sP4C05@mail.gmail.com' \
--to=martinwguy@gmail.com \
--cc=linux-arm-kernel@lists.infradead.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).