From: Albert ARIBAUD <albert.aribaud@free.fr>
To: u-boot@lists.denx.de
Subject: [U-Boot] write to mcBsp address space
Date: Tue, 15 Feb 2011 07:48:54 +0100 [thread overview]
Message-ID: <4D5A21D6.7010108@free.fr> (raw)
In-Reply-To: <AANLkTinoS6t22v2vVRvc9=Kkcie+gM+ChC8z2_usQ5WC@mail.gmail.com>
Hi Ran,
Le 15/02/2011 07:35, Ran Shalit a ?crit :
> Hello,
>
> I'm working on OMAPL138 EVM board, with the U-BOOT.
> I'm trying to access and write into the register (which have write bits),
> but I always read 0 in all the map space of the mcBSP0 and mcBSP1.
> (0x01d10000 - 0x1d10800, 0x01d11000 - 0x1d11800).
> I wonder what I missed here. any ideas are welcomed.
Many SoCs have "base address registers" that allow remapping internal or
peripheral registers anywhere in the address space, which means the
actual address you're trying to get at might not be the right one. Did
you check the BAR(s) and make sure the mcBsp address you're targetting
is the right one for your board?
> Thank you very much,
>
> Ran
Amicalement,
--
Albert.
next prev parent reply other threads:[~2011-02-15 6:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-15 6:35 [U-Boot] write to mcBsp address space Ran Shalit
2011-02-15 6:48 ` Albert ARIBAUD [this message]
2011-02-15 8:21 ` Ran
2011-02-15 10:35 ` Albert ARIBAUD
2011-02-15 11:50 ` Ran
2011-02-15 12:35 ` Albert ARIBAUD
2011-02-16 7:04 ` Aneesh V
2011-02-15 14:49 ` Bedia, Vaibhav
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=4D5A21D6.7010108@free.fr \
--to=albert.aribaud@free.fr \
--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