From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
To: Carlos Ojea Castro <nuudoo.fb@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: LPC bus in a geode sc1200
Date: Tue, 9 May 2006 10:28:51 -0400 [thread overview]
Message-ID: <20060509142851.GA2837@csclub.uwaterloo.ca> (raw)
In-Reply-To: <bae323a50605090211t6af09c75u7cab1aac71e0e412@mail.gmail.com>
On Tue, May 09, 2006 at 11:11:17AM +0200, Carlos Ojea Castro wrote:
> I wrote a driver to use LPC bus in a geode sc1200. For now I am able
> to transmit an read or write "I/O cycle" to the LPC.
> What I want to do now is to read or write to the LPC using a "Memory cycle".
>
> Anyone knows how can I archieve this?
> is there another list more suitable for my question?
The LPC bus is the same as ISA as far as software is concerned. You
just read and write to it, or do DMA or whatever you want.
I have an FPGA on port 0x500 on the LPC bus of an sc1200, and I just
read and write the registers there the same as any other hardware.
Len Sorensen
next prev parent reply other threads:[~2006-05-09 14:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-09 9:11 LPC bus in a geode sc1200 Carlos Ojea Castro
2006-05-09 14:28 ` Lennart Sorensen [this message]
2006-05-10 7:55 ` Carlos Ojea Castro
2006-05-10 15:39 ` Lennart Sorensen
2006-05-11 13:15 ` Carlos Ojea Castro
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