From: "Mark A. Greer" <mgreer@mvista.com>
To: 신경수 <ksshin@essetel.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: PCI DMA in GT64260
Date: Wed, 24 Sep 2003 17:52:03 -0700 [thread overview]
Message-ID: <3F723C33.9030003@mvista.com> (raw)
In-Reply-To: <009501c37dba$0f462470$c50aa8c0@ksshin>
Well there are a lot of things that could be wrong. I'd have to actually
see your code to figure out what's wrong. Use
arch/ppc/platforms/ev64260.c as an example, if you haven't already.
Sorry I can't help more but there are simply too many possibilities and
not enough info to narrow down the possibilities to suggest anything.
Mark
--
신경수 wrote:
>Dear all.
>
>I have a board that consisted of mpc7410+gt64260+pci_device,
>and I have already success to read/write the pci_device.
>After init the pci_device, I command to the pci_device
>that read data from main memory(sdram),
>but, the pci_device does not operate and return only fail...
>
>I think that this is the DMA Problem...
>so I want to know that how to set the register of gt64260 to do
>DMA operation.
>
>I already set PCI SCS[0] Size Reg, PCI SCS[0] Base Addr Remap Reg,
>and PCI Base Address Enable Reg. what I omitted? or ...
>
>please help me...
>
>Thanks everybody.
>
>
>
>
>
>
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2003-09-25 0:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-18 7:54 PCI DMA in GT64260 신경수
2003-09-25 0:52 ` Mark A. Greer [this message]
2003-09-25 4:57 ` 신경수
2003-09-26 0:58 ` Mark A. Greer
2003-09-26 5:33 ` 신경수
2003-09-26 18:46 ` Mark A. Greer
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=3F723C33.9030003@mvista.com \
--to=mgreer@mvista.com \
--cc=ksshin@essetel.com \
--cc=linuxppc-embedded@lists.linuxppc.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.