From owner-freebsd-arm@FreeBSD.ORG  Wed Feb 14 20:36:53 2007
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Date: Wed, 14 Feb 2007 12:36:49 -0800
From: Sam Leffler <sam@errno.com>
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To: David Cornejo <dave@dogwood.com>
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Cc: freebsd-arm@freebsd.org
Subject: Re: ixp4xx microcode problem
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David Cornejo wrote:
> Hi,
> 
> I downloaded IPL_ixp400NpeLibrary-2_3.zip from Intel to build a kernel
> for my Gateworks GW2348-2-CF (the one Netgate sells).  But when I
> attempt to boot the kernel it didn't find the image identifier requested
> in if_npe (0x01000200) and crashes (similar for npe1 also).  I looked
> through IxNpeMicrocode.c, but the closest I found was 0x01000201.  So I
> hacked ixp425_npevar.h thusly:
> 
> Index: ixp425_npevar.h
> ===================================================================
> RCS file: /home/ncvs/src/sys/arm/xscale/ixp425/ixp425_npevar.h,v
> retrieving revision 1.1
> diff -u -r1.1 ixp425_npevar.h
> --- ixp425_npevar.h     19 Nov 2006 23:55:23 -0000      1.1
> +++ ixp425_npevar.h     14 Feb 2007 01:27:37 -0000
> @@ -76,8 +76,8 @@
>  #define NPEFW_B_DMA            0x01020100 /* DMA only */
>  /* XXX ... more not include */
> 
> -#define        IXP425_NPE_B_IMAGEID    0x01000200
> -#define        IXP425_NPE_C_IMAGEID    0x02000200
> +#define        IXP425_NPE_B_IMAGEID    0x01000201
> +#define        IXP425_NPE_C_IMAGEID    0x02000201
> 
>  struct ixpnpe_softc;
>  struct ixpnpe_softc *ixpnpe_attach(device_t);
> 
> So it now boots and I'm not seeing any problems (with npe0 at least) and
> it nfs mounts a root fs.
> 
> Is there any reason why I shouldn't do this, or can someone point me at
> the correct file to download from Intel that has the expected image in it?

I got my ucode image from a Gateworks Linux distribution.  I believe
you've got an image that includes packet header conversion support
(check the IAL and/or sys/arm/xscale/ixp425/ixp425_npevar.h); no clue
what'll happen.

	Sam