From: Anatolij Gustschin <agust@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] Displaying characters on the display in u-boot
Date: Fri, 10 May 2013 13:38:43 +0200 [thread overview]
Message-ID: <20130510133843.4b119f2a@crub> (raw)
In-Reply-To: <9827C66E1D129C4183B8AD771A4A5770A4057D9B9A@EXGMBX01.sasken.com>
Hi,
On Fri, 10 May 2013 16:00:31 +0530
Bhargav A K <bhargav.ak@sasken.com> wrote:
> Hi
>
> > Why are you using 0xA5000000 address here as the frame buffer base
> > address?
>
> Yeah this is a very much a valid frame buffer address. I 'used' to use this for splash screen also and it
> worked fine.
>
> > Can you see changes on the display if you write data to this address by
> > U-Boot "mw" command (i.e. "mw a5000000 ffffffff 100") ?
>
> No.. but the memory will have all "f"'s contained in it until I reboot.
Well, if you do not see changes on the display, that means
your OMAP display controller doesn't fetch data starting from this
frame buffer base address. Otherwise you would see some white
lines on the display.
Best regards,
Anatolij
prev parent reply other threads:[~2013-05-10 11:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-27 8:27 [U-Boot] Displaying characters on the display in u-boot Bhargav A K
2013-03-27 11:39 ` Anatolij Gustschin
[not found] ` <9827C66E1D129C4183B8AD771A4A57709A02936174@EXGMBX01.sasken.com>
2013-03-27 15:00 ` Anatolij Gustschin
2013-03-27 15:35 ` Bhargav A K
2013-03-27 16:27 ` Anatolij Gustschin
2013-03-27 16:34 ` Bhargav A K
2013-04-19 15:59 ` Bhargav A K
2013-04-27 20:20 ` Bhargav A K
2013-04-28 14:22 ` Anatolij Gustschin
2013-05-10 10:30 ` Bhargav A K
2013-05-10 11:38 ` Anatolij Gustschin [this message]
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=20130510133843.4b119f2a@crub \
--to=agust@denx.de \
--cc=u-boot@lists.denx.de \
/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