From mboxrd@z Thu Jan  1 00:00:00 1970
From: daniel@caiaq.de (Daniel Mack)
Date: Sun, 7 Feb 2010 06:11:22 +0100
Subject: [PXA320] How to find  I/O registers, base address of ASIX
	ethernet chip?
In-Reply-To: <20100205075338.GB31903@pengutronix.de>
References: <19621265275300@webmail108.yandex.ru>
	<20100205042655.GR28972@buzzloop.caiaq.de>
	<20100205075338.GB31903@pengutronix.de>
Message-ID: <20100207051122.GK9007@buzzloop.caiaq.de>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Fri, Feb 05, 2010 at 08:53:38AM +0100, Uwe Kleine-K?nig wrote:
> On Fri, Feb 05, 2010 at 05:26:55AM +0100, Daniel Mack wrote:
> > The addresses passed to the driver is the I/O area of the chip select
> > signal used for the Ethernet chip. This setting should be alright, as it
> > worked well for me.
> > 
> > If your kernel hangs when accessing this area, you most probably haven't
> > set up your static bus correctly. The bootloader is in charge of doing
> > this, and the correct value for CSADRCFG2 is 0x0032C809.
> I would prefer if Linux didn't rely on the boot loader for that.  It's
> not expensive or difficult to set this register in machine setup code,
> is it?
> 

The boarsds I've been working on need to set this register from the
bootloader anyway they use Ethernet for TFTP downloads. But you're
right, in general, there should be a way to set such registers from
kernel space as well. Eric, any such plans?

Daniel