zImage works, but not vmlinux

[Kristoffer Ericson]

On Tue, May 25, 2010 at 11:43:17AM -0400, f. achkar wrote:
> Hi,
> I have tried to send this message some part of it was ignored, resending
> sorry ...
> 
> greetings,
> I'm newbie to arm linux, so pls if my issue is already addressed just
> point me to that reference. I'm trying to learn, but couldn't pass the
> following stage:
> I have a s3c245 based board, I have a working compressed kernel image
> zImage, this image boots properly via u-boot-1.1.6, however I simply
> failed to load (i.e., boot vmlinux) via u-boot directly from SDRAM.
> 
> more details:
> 
>    1. I let the target boot until the message of "  Hit any key to stop
>       autoboot: " for which I hit enter, (this initialized the board
>       enables MMU, I-Cache, .. etc);
>    2. board info as seen by u-boot
>       # bdinfo
>       arch_number = 0x00000648
>       env_t       = 0x00000000
>       boot_params = 0x30000100
>       DRAM bank   = 0x00000000
>       -> start    = 0x30000000
>       -> size     = 0x04000000
>       DRAM bank   = 0x00000001
>       -> start    = 0x38000000
>       -> size     = 0x04000000
>       ethaddr     = ...:5B
>       ip_addr     = ...200
>       baudrate    = 115200 bps
>    3. laod vmlinux to SDRAM :
>       tftp 30008000 vmlinux
>       TFTP from server ...210; our IP address is ...200
>       Filename 'vmlinux'.
>       Load address: 0x30008000
>       Loading: T ############ .....
>    4. # bootm 30008000
>       ## Booting image at 30008000 ...
>       Boot with Image
>       do not support this address : 30008000
> 
>       Starting kernel ...

Is that kernel compiled with early printk? 

> 
> and nothing happens it probably crashed somewhere, why zImage works
> while vmlinux does not?
> thanks,
> ferar
> 
> 
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