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

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Date:	Wed, 1 Apr 2009 17:24:27 +0530
From:	Sajith P V <sajithpv@...il.com>
To:	Alan Carvalho de Assis <acassis@...il.com>
Cc:	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

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:

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

But going further the network device configuration failed:
IP-Config: Failed to open eth0
IP-Config: No network devices available.

Should we not also enable interrupts for the ethernet controller to
make it work?

Regards,
Saijth
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