netdev - Re: [PATCH] i.MX31: Fixing cs89x0 network building to i.MX31ADS

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Date:	Thu, 2 Apr 2009 10:10:00 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Sajith P V <sajithpv@...il.com>
Cc:	Alan Carvalho de Assis <acassis@...il.com>,
	linux-arm-kernel@...ts.arm.linux.org.uk, netdev@...r.kernel.org,
	Sascha Hauer <s.hauer@...gutronix.de>
Subject: Re: [PATCH] i.MX31: Fixing cs89x0 network building to i.MX31ADS

On Wed, Apr 01, 2009 at 05:24:27PM +0530, Sajith P V wrote:
> Hi Alan,
> 
> On Tue, Mar 31, 2009 at 7:06 PM, Alan Carvalho de Assis
> <acassis@...il.com> wrote:
> > This is a fix to get cs89x0 network driver working on i.MX31ADS
> > diff --git a/drivers/net/cs89x0.c b/drivers/net/cs89x0.c
> > index ff64976..8ccc8f7 100644
> > --- a/drivers/net/cs89x0.c
> > +++ b/drivers/net/cs89x0.c
> > @@ -190,6 +190,7 @@ static unsigned int cs8900_irq_map[] =
> > {IRQ_IXDP2X01_CS8900, 0, 0, 0};
> >  static unsigned int netcard_portlist[] __used __initdata =
> > {CIRRUS_DEFAULT_BASE, 0};
> >  static unsigned int cs8900_irq_map[] = {CIRRUS_DEFAULT_IRQ, 0, 0, 0};
> >  #elif defined(CONFIG_MACH_MX31ADS)
> > +#include <mach/hardware.h>
> >  #include <mach/board-mx31ads.h>
> >  static unsigned int netcard_portlist[] __used __initdata = {
> >        PBC_BASE_ADDRESS + PBC_CS8900A_IOBASE + 0x300, 0
> >
> 
> I tried this change on a different Freescale board but using the same
> ethernet controller. The probe worked as shown in the console dump
> below:

It didn't - you didn't read all the messages.

> cs89x0:cs89x0_probe(0x0)
> cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@...nwr.com>, Andrew
> Morton <andrewm@....edu.au>
> eth0: cs8900 rev K found at 0xf0000300
> cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on
> command line
> cs89x0 media  IRQ 61, programmed I/O, MAC 00:00:00:00:00:00
> cs89x0_probe1() successful
> cs89x0:cs89x0_probe(0x0)
> cs89x0: request_region(0xf0000300, 0x10) failed
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

> cs89x0: no cs8900 or cs8920 detected.  Be sure to disable PnP with SETUP
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

The IO region was not available for whatever reason.  Check what's in
/proc/ioports and also check your setting for IO_SPACE_LIMIT.
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