RedBoot passes a list of TAGs (structures) to the kernel to tell the kernel;
what memory is available, what boot parameters to use, ramdisk information,
and system type.
For some reason this information is corrupt or the kernel is looking in the
wrong place for it. (Thus all your TAG errors)
see: PDF on booting ARM linux
http://www.simtec.co.uk/products/SWLINUX/files/booting_article.pdf
-Curtis.
On September 20, 2005 06:58 am, Daniel Smolik wrote:
> napsal(a):
> > Hello all,
> >
> > I have a problem when reinstall kernel for TS7250 using my toolchain.
> >
> > I use kernel 2.4.26-vrs1-cirrus-1-2-1-ts8 from TS. Toolchain contains GCC
> > 3.4.3, Binutils 2.15 and uClibc 0.9.27.
> > Kernel is configured by using ts7250 found at arch/arm/def-configs/
> > directory in kernel archive. Reinstalling has been done successfully
without
> > error and it results kernel image (zImage) in kernel root dir.
> >
> > Then, i load this image using tftp. The following is snapshot when kernel
> > loading:
> >
> > RedBoot(tm) bootstrap and debug environment [ROMRAM]
> > Non-certified release, version current-TS_5 - built 16:49:40, Mar 1 2005
> >
> > Platform: TS-7250 Board (ARM920T) Rev A
> > Copyright (C) 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
> >
> > RAM: 0x00000000-0x02000000, [0x00051570-0x01ff9000] available
> > FLASH: 0x60000000 - 0x68000000, 8192 blocks of 0x00004000 bytes each.
> > == Executing boot script in 0.100 seconds - enter ^C to abort
> > ^C
> > RedBoot> load -r -b 0x00218000 -h 10.0.0.77 zImage
> > Using default protocol (TFTP)
> > Raw file loaded 0x00218000-0x002b2dcf, assumed entry at 0x00218000
> > RedBoot> exec -c "console=ttyAM0,115200 ip=dhcp
> > nfsroot=10.0.0.77:/nfsroot/targetarm"
> I mean that you missing root option I use root=/dev/nfs and
> information about NFS directory I export via dhcp.
>
> Dan
>
>
>
> > Using base address 0x00218000 and length 0x0009add0
> > Uncompressing Linux............................................ done,
> > booting the kernel.
> > Linux version 2.4.26-vrs1-cirrus-1-2-1-ts8 (gcc version
> > 3.4.3) #2 Tue Sep 20 14:25:31 WIT 2005
> > CPU: Arm920Tid(wb) revision 0
> > Machine: ep9301
> > Ignoring unrecognised tag 0x54410001
> > Ignoring unrecognised tag 0x54410002
> > Ignoring unrecognised tag 0x54410002
> > Ignoring unrecognised tag 0x54410002
> > Ignoring unrecognised tag 0x54410002
> > Ignoring unrecognised tag 0x54410002
> > Ignoring unrecognised tag 0x54410002
> > Ignoring unrecognised tag 0x54410002
> > Ignoring unrecognised tag 0x54410002
> > Ignoring unrecognised tag 0x54410009
> > On node 0 totalpages: 2048
> > zone(0): 2048 pages.
> > zone(1): 0 pages.
> > zone(2): 0 pages.
> > Kernel command line: root=/dev/mtdblock1 console=ttyAM0,115200
> > Calibrating delay loop... 99.94 BogoMIPS
> > Memory: 8MB = 8MB total
> > Memory: 4472KB available (1118K code, 290K data, 64K init)
> > Dentry cache hash table entries: 1024 (order: 1, 8192 bytes)
> > Inode cache hash table entries: 512 (order: 0, 4096 bytes)
> > Mount cache hash table entries: 512 (order: 0, 4096 bytes)
> > Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
> > Page-cache hash table entries: 2048 (order: 1, 8192 bytes)
> >
> >
> > 1. Kernel reports "unrecognize tag " (found at
> > linux-24/arch/arm/kernel/setup.c) and then i only have 8MB RAM. Is it
> > because i'm missing something in kernel configuration regarded to TS7250
> > board?
> > 2. Why i can't passing booting parameter from redboot (see Kernel command
> > line above, it doesn't change with value i passed to redboot command)?
> > Default kernel parameter looks like be hardcoded into image and it is
always
> > used even if i pass different parameter into kernel.
> >
> > Anyone can help?
> >
> > -eko didik widianto
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>
>
>
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