Hi all!
We have a mpc5200liteB evaluation board with u-boot 1.1.4 and linux
2.4.25 from Denx. We have grabed a cramfs root fs on a mtd partition
and we are able to boot linux without problems:
setenv bootargs root=/dev/mtdblock4 rw rootfstype=cramfs
console=ttyS0 console=ttyS0 init=/sbin/init ip=on
....
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (cramfs
filesystem).
Freeing unused kernel memory: 96k
init
BusyBox v1.00 (2006.03.06-10:43+0000) Built-in shell
(ash)
Enter 'help' for a list of built-in commands.
#
However, we are not able to boot linux with the same rootfs image (with
the u-boot header) loaded from RAM.
setenv bootargs root=/dev/rw rw console=ttyS0 console=ttyS0
init=/sbin/init ip=on
## Booting image at 00500000 ...
Image Name: Linux-2.4.25-rthal5-TRACE
Created: 2006-05-11 9:37:52 UTC
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 1000166 Bytes = 976.7 kB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
## Loading RAMDisk Image at 01000000 ...
Image Name: Ramdisk Image
Created: 2006-05-22 8:12:03 UTC
Image Type: PowerPC Linux RAMDisk Image (gzip compressed)
Data Size: 1191936 Bytes = 1.1 MB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Loading Ramdisk to 0fe22000, end 0ff45000 ... OK
Memory BAT mapping: BAT2=256Mb, BAT3=0Mb, residual: 0Mb
Linux version 2.4.25-rthal5-TRACE (igor at ILURI_LINUX) (gcc
version 3.3.6) #300 jue may 11 11:33:57 CEST 2006
On node 0 totalpages: 65536
zone(0): 65536 pages.
zone(1): 0 pages.
....
NET4: Unix domain sockets 1.0/SMP for Linux
NET4.0.
RAMDISK: cramfs filesystem found at block
0
RAMDISK: Loading 1164 blocks [1 disk] into ram disk...
done.
Freeing initrd memory: 1164k
freed
VFS: Mounted root (cramfs filesystem)
readonly.
Freeing unused kernel memory: 96k
init
Error -3 while
decompressing!
c0224e84(1616147664)->c0214000(4096)
Error -3 while
decompressing!
c02286d8(-965246762)->cff41000(4096)
Kernel panic: No init found. Try passing init= option to
kernel.
<0>Rebooting in 180 seconds..
We have configured linux with option " Board uses U-Boot CONFIG_UBOOT "
and CRAMFS image is built with correct endianess:
file initrd.cramfs
Linux Compressed ROM File System data, big endian size 1191936
version #2 sorted_dirs CRC 0xac3c8f59, edition 0, 719 blocks, 433 files
We suspect it could be related with the SDRAM, but we are lost here.
Someone knows what we are doing wrong? Any help would be appretiated.
Thanks in advance.
