[U-Boot-Users] Cannot boot from a uImage on the lite5200

Tue Apr 19 18:45:22 CEST 2005

I'm having problems getting u-boot to boot linux from a uImage on my
lite5200 eval board.  I can load a zImage into ram (@ 0x200000) and
use the go command to boot it with no problems.  When I load a uImage
I get the bootup debug banners from the linux kernel and then the
board resets before the "Linux version ..." banner (and then my
bdi2000 halts the board).  I've included the console logs for both
cases below.

I noticed that the uImage has the load address set to 0x00000000
instead of the 0x00800000 that the zImage uses.  Is this correct?  I
did try a uImage with load address set to 0x00800000, but I saw no
difference.

BTW, ignore the "unable to mount root filesystem" kernel panic in the
zImage case; I know how to fix that.

Has anybody had similar problems?  I'm digging deeper into it now, but
any suggestions would be appreciated.

Thanks,
g.

U-Boot: 1.1.2 (I don't have easy access to CVS due to firewall)
Linux kernel: stock 2.6.11 (I also don't have easy access to bk trees,
otherwise I'd use Sylvain's tree)
Toolchain: gcc 3.4.1 built from crosstool 0.30

Loaded zImage and jumped to 0x200000:
--------------------

U-Boot 1.1.2 (Apr 18 2005 - 14:20:37)

CPU:   MPC5200 v1.2 at 396 MHz
       Bus 132 MHz, IPB 66 MHz, PCI 33 MHz
Board: Motorola MPC5200 (IceCube)
I2C:   85 kHz, ready
DRAM:  64 MB
FLASH: 16 MB
PCI:   Bus Dev VenId DevId Class Int
        00  1a  1057  5803  0680  00
In:    serial
Out:   serial
Err:   serial
Net:   FEC ETHERNET
IDE:   Bus 0: not available

Type "run flash_nfs" to mount root filesystem over NFS

Hit any key to stop autoboot:  0
=>
=>
=> tftpboot 200000 lite5200/zImage.lite5200

U-Boot 1.1.2 (Apr 18 2005 - 14:20:37)

CPU:   MPC5200 v1.2 at 396 MHz
       Bus 132 MHz, IPB 66 MHz, PCI 33 MHz
Board: Motorola MPC5200 (IceCube)
I2C:   85 kHz, ready
DRAM:  64 MB
FLASH: 16 MB
PCI:   Bus Dev VenId DevId Class Int
        00  1a  1057  5803  0680  00
In:    serial
Out:   serial
Err:   serial
Net:   FEC ETHERNET
IDE:   Bus 0: not available

Type "run flash_nfs" to mount root filesystem over NFS

Hit any key to stop autoboot:  0
=> tftpboot 200000 lite5200/zImage.lite5200
Using FEC ETHERNET device
TFTP from server 192.168.100.1; our IP address is 192.168.100.10
Filename 'lite5200/zImage.lite5200'.
Load address: 0x200000
Loading: #################################################################
         #################################################################
         #####
done
Bytes transferred = 688691 (a8233 hex)
=> loaded at:     00200000 0029A130
relocated to:  00800000 0089A130
zimage at:     008057B9 00897E50
avail ram:     00400000 00800000

Linux/PPC load: console=ttyS0 root=/dev/ram0 rw
Uncompressing Linux...done.
Now booting the kernel
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:setio
MMU:exit
setup_arch: enter
setup_arch: bootmem
ocp: exit
arch: exit
Linux version 2.6.11 (glikely at trillian) (gcc version 3.4.1) #1 Mon Apr 18 14:35:
36 MDT 2005
Built 1 zonelists
Kernel command line: console=ttyS0 root=/dev/ram0 rw
PID hash table entries: 512 (order: 9, 8192 bytes)
Console: colour dummy device 80x25
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 63520k available (904k kernel code, 300k data, 84k init, 0k highmem)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Linux NoNET1.0 for Linux 2.6

PCI: Probing PCI hardware
Serial: MPC52xx PSC driver
ttyS0 at MMIO 0xf0002000 (irq = 39) is a MPC52xx PSC
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
mice: PS/2 mouse device common for all mice
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)
 <0>Rebooting in 180 seconds..

Loaded uImage and booted at 0x200000:
--------------------

U-Boot 1.1.2 (Apr 18 2005 - 14:20:37)

CPU:   MPC5200 v1.2 at 396 MHz
       Bus 132 MHz, IPB 66 MHz, PCI 33 MHz
Board: Motorola MPC5200 (IceCube)
I2C:   85 kHz, ready
DRAM:  64 MB
FLASH: 16 MB
PCI:   Bus Dev VenId DevId Class Int
        00  1a  1057  5803  0680  00
In:    serial
Out:   serial
Err:   serial
Net:   FEC ETHERNET
IDE:   Bus 0: not available

Type "run flash_nfs" to mount root filesystem over NFS

Hit any key to stop autoboot:  0
=>
=>
=> tftpboot 200000 /tftpboot/lite5200/uImage
Using FEC ETHERNET device
TFTP from server 192.168.100.1; our IP address is 192.168.100.10
Filename '/tftpboot/lite5200/uImage'.
Load address: 0x200000
Loading: #################################################################
         #####################################################
done
Bytes transferred = 599767 (926d7 hex)
=> bootm 200000
## Booting image at 00200000 ...
   Image Name:   Linux-2.6.11
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    599703 Bytes = 585.6 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:setio
MMU:exit
setup_arch: enter
setup_arch: bootmem
ocp: exit
arch: exit