From: Pete Popov <ppopov@embeddedalley.com>
To: Gilad Rom <gilad@romat.com>
Cc: linux-mips@linux-mips.org
Subject: Re: Au1500 Chip Select
Date: Wed, 24 Nov 2004 09:57:38 -0800 [thread overview]
Message-ID: <41A4CB92.7070403@embeddedalley.com> (raw)
In-Reply-To: <20041124143229.ADF81EB2E4@mail.romat.com>
Gilad Rom wrote:
> Hello,
>
> I am trying to implement a simple program which
> Will be used to communicate with an I/O peripheral
> Over CS1 (Chip select 1) of the au1500.
I'm not sure I understand what you're trying to do. The chip select is setup by
the boot loader or kernel, and you don't touch it anymore. The CS will get
asserted/deasserted based on the addresses you're trying to access.
> Has anyone ever attempted this? Could someone
> Point me to some sample code, perhaps? I am grepping
> Through the kernel, yet having trouble locating
> Chip-select specific code for reference.
Again, what sort of an example are you looking for? Setting up a chip select on
the Au1x is nothing more than writing the appropriate values to the 3 chip
select registers. Then you're done.
Pete
next prev parent reply other threads:[~2004-11-24 17:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-24 14:32 Au1500 Chip Select Gilad Rom
2004-11-24 14:32 ` Gilad Rom
2004-11-24 17:57 ` Pete Popov [this message]
2004-11-25 7:12 ` תשובה: " Gilad Rom
2004-11-25 7:12 ` Gilad Rom
2004-11-25 7:23 ` Pete Popov
2004-11-25 7:32 ` תשובה: " Gilad Rom
2004-11-25 7:32 ` Gilad Rom
2004-11-25 7:54 ` Pete Popov
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