First, try to uncomment DEBUG in cmd_bootm.c - you may see useful output. Second, see how your serial connection is initialized - why there is no any output on console? What is command line u-boot provides for the kernel?
Leonid.
-----Original Message----- From: u-boot-users-bounces@lists.sourceforge.net [mailto:u-boot-users-bounces@lists.sourceforge.net] On Behalf Of Ingo Swieter Sent: Thursday, June 14, 2007 4:22 AM To: u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] bootm shows Kernel info but reset
Hello,
i have a problem starting Linux from U-Boot. I compile my Linux-Kernel with the make uImage command and copy it to my tftpboot directory.
With U-Boot i can load the image through tftp and the bootm command shows the correct information. But after a while, around half second, it restarts U-Boot again.
Do you have any hint for that problem?
Best Regards, Ingo
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# t 100000 uImage Using FEC ETHERNET device TFTP from server 172.16.102.78; our IP address is 172.16.102.79 Filename 'uImage'. Load address: 0x100000 Loading: ################################################################# ################################################################# ### done Bytes transferred = 679637 (a5ed5 hex) # bootm 100000 ## Booting image at 00100000 ... Image Name: Linux-2.4.25 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 679573 Bytes = 663.6 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK
U-Boot 1.2.0 (Jun 14 2007 - 11:03:06) BCS_EPDEV_P01-00
CPU: MPC885ZPnn at 100 MHz [40.0...133.0 MHz] 8 kB I-Cache 8 kB D-Cache FEC present Board: EP88xC 1.1 CPLD revision 2 Watchdog enabled DRAM: 64 MB FLASH: 32 MB In: serial Out: serial Err: serial Net: FEC ETHERNET, FEC2 ETHERNET #