pb with RTAI & EVB5272C3

Stephane MALLEM stephane.mallem at crde.fr
Tue Feb 8 12:37:51 CET 2005

Stephane MALLEM wrote:
 > Hi all
 > I try to install RTAI on a EVB5272C3 board.
 > I do this with version rtai-24.1.8, patch tarifa/20020227 and  >
uClinux-dist-20020220.  >  
 > All things are OK when I boot from dBUG.
 > The problem happen when I boot from u-boot-1.1.1 with uClinux only  >
patched with RTHAL.  >  
 > Nothing appear on the screen (only" ## starting application at  >
Gilles Chanteperdrix answer :
Did you and compile u-boot with the CONFIG_SHOW_BOOT_PROGRESS option ?
Stephane Mallem :
Ok I use CONFIG_SHOW_BOOT_PROGRESS. U-boot is all right when I use bootm
0xfff00000 command.
But  uClinux doesn't start.
U-Boot 1.1.1- fff (Feb  4 2005 - 17:31:42)
CPU:   MOTOROLA MCF5272 (Mask:1)
DRAM:  16 MB
In:    serial
Out:   serial
Err:   serial
--> bootm 0xfff00000
## Booting image at fff00000 ...
   Image Name:
   Image Type:   M68K Linux Kernel Image (gzip compressed)
   Data Size:    719611 Bytes = 702.7 kB
   Load Address: 00020000
   Entry Point:  00020000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
Starting kernel ...
I wait for ever something else appear on the screen.
So I look Uclinux code and use a scope in combination with port A to see
My conclusion is : printk() execute 3 time, but nothing appear on TXD.
Uclinux crashes somewhere in free_area_init_node() in pagint_init() in
setup_arch() in init_start_kernel()
I have no idea what's happened !
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