[U-Boot-Users] Linux kernel startup

[Tiju]

Hi all,

After uboot comes up, I get stuck with the booting of linux kernel. The RAM range is from 0x30000000-0x38000000. Following are the steps I do to get the uImage.bin.

$ arm-linux-objcopy -O binary -R .note -R ..comment -S vmlinux linux.bin
$ gzip -9 linux.bin
$ ../u-boot-1.3.2/tools/mkimage -A arm -O linux -T kernel -C gzip -a 0x30008000 -e 0x30008000 -n "Linux kernel" -d linux.bin.gz uImage.bin
Image Name:   Linux kernel
Created:      Sun Apr  6 12:19:12 2008
Image Type:   ARM Linux Kernel Image (gzip compressed)
Data Size:    4271627 Bytes = 4171.51 kB = 4.07 MB
Load Address: 0x30008000
Entry Point:  0x30008000

After this I put the uImage.bin at 0x33000000, restart uboot and I get:

U-Boot 1.3.2 (Apr  6 2008 - 12:03:10)

DRAM:  128 MB
Flash: 32 MB
Using default environment

In:    serial
Out:   serial
Err:   serial
Hit any key to stop autoboot:  0
## Booting image at 33000000 ...
   Image Name:   Linux kernel
   Image Type:   ARM Linux Kernel Image (gzip compressed)
   Data Size:    4271627 Bytes =  4.1 MB
   Load Address: 30008000
   Entry Point:  30008000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK

Starting kernel ...

undefined instruction
pc : [<30808004>]          lr : [<3101175c>]
sp : 30fcfaf8  ip : 30fcffb8     fp : 00000000
r10: 00000001  r9 : 30fcfe98     r8 : 30fcffdc
r7 : cf032d24  r6 : 33000040     r5 : 31019544  r4 : 31019541
r3 : 30fcfe55  r2 : 30000100     r1 : 0000016a  r0 : 00000000
Flags: nzCv  IRQs off  FIQs off  Mode SVC_32
Resetting CPU ...

data abort
pc : [<31010ca8>]          lr : [<31010d40>]
sp : 30fcfa88  ip : 3101b06c     fp : 00000000
r10: 00000001  r9 : 30fcfe98     r8 : 30fcffdc
r7 : cf032d24  r6 : 33000040     r5 : 00658d7f  r4 : 00036042
r3 : 3101b070  r2 : 0000566d     r1 : 00003307  r0 : 000032ff
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32
Resetting CPU ...

data abort
pc : [<31010ca8>]          lr : [<31010cf4>]
sp : 30fcfa10  ip : ffffffff     fp : 00000000
r10: 00000001  r9 : 30fcfe98     r8 : 30fcffdc
r7 : cf032d24  r6 : 33000040     r5 : 30fcfa74  r4 : 00000000
r3 : 3101b070  r2 : 30fcfa30     r1 : 00003307  r0 : 00003200
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32
Resetting CPU ...

And it keeps on resetting the CPU.

Is it the problem with the settings of uboot or the kernel and what should I do to bring the linux kernel up? Where could I find more information regarding this?

Kindly help me out.

Thanks in advance.
Tiju




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