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
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