[U-Boot] Booting zImage on IXP425 BE

[Horst Rennfler]

When I call the zImage directly I see then of course with the DEBUG:
=> go 0x8000
## Starting application at 0x00008000 ...

Error: unrecognized/unsupported machine ID (r1 = 0x02fddea8).

Available machine support:

ID (hex)        NAME
000000f5        Intel IXDP425 Development Platform

Please check your kernel config and/or bootloader.

But wrapping the arch/arm/boot/Image with mkimage it just resets the board
then:

=> bootm 0x800000
## Booting kernel from Legacy Image at 00800000 ...
   Image Name:   linux-2.6
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1783464 Bytes =  1.7 MB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK
resetting ...


although bdinfo shows the same machine ID:

=> bdinfo
arch_number = 0x000000F5



thanks
horst

2008/11/23 Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>

> On 21:15 Sun 23 Nov     , Horst Rennfler wrote:
> > Good evening...
> > I have an IXP425 based platform which currently has redboot installed
> > and want to replace it with u-boot of course :-)
> >
> > I can start latest u-boot from git inside redboot, display flash
> > information,
> > doing memory test, tftp images onto it without problems...
> >
> > What bugs me is the fact that I am not able to boot any arm-linux
> > zImage inside u-boot but redboot can...
>
> normally with u-boot we use a uImage not a zImage directly
>
> >
> > Trying to boot from within u-boot it just hangs after the call to
> > "decompress_kernel" from arch/arm/compressed/head.S"...
>
> active the low-level kernel debug
>
> and check that in u-boot you pass the good machine ID to the kernel
>
> Best Regards,
> J.
>