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From: daniel@caiaq.de (Daniel Mack)
To: linux-arm-kernel@lists.infradead.org
Subject: [PXA320] How to find  I/O registers, base address of ASIX ethernet chip?
Date: Sun, 7 Feb 2010 06:11:22 +0100	[thread overview]
Message-ID: <20100207051122.GK9007@buzzloop.caiaq.de> (raw)
In-Reply-To: <20100205075338.GB31903@pengutronix.de>

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

  reply	other threads:[~2010-02-07  5:11 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-04  9:21 [PXA320] How to find I/O registers, base address of ASIX ethernet chip? Dennis Semakin
2010-02-04 12:28 ` Eric Miao
2010-02-04 13:09   ` Dennis Semakin
2010-02-04 13:24   ` Dennis Semakin
2010-02-04 13:31   ` Dennis Semakin
2010-02-05  4:26 ` Daniel Mack
2010-02-05  7:53   ` Uwe Kleine-König
2010-02-07  5:11     ` Daniel Mack [this message]
2010-02-08  6:06       ` Eric Miao
2010-02-05  8:02   ` Dennis Semakin
2010-02-07  5:13     ` Daniel Mack
2010-02-08  8:58       ` Dennis Semakin
2010-02-08  8:59       ` Dennis Semakin
2010-02-08  9:13         ` Uwe Kleine-König
2010-02-08  9:31           ` Dennis Semakin
2010-02-08  9:38           ` Dennis Semakin
2010-02-08 10:15             ` Daniel Mack
2010-02-08 12:16               ` Dennis Semakin
2010-02-08 12:49                 ` Daniel Mack
2010-02-08 14:13                   ` Dennis Semakin
2010-02-08 12:16               ` Dennis Semakin
2010-02-08  9:57           ` Dennis Semakin
2010-02-07  6:53     ` Mike Rapoport

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