Hi, I make a linux uImage with command "make uImage" , and linux kernel can start up after downloading it into the target board, but now I want to generate uImage by vmlinux with mkimage, not by "make uImage",so I do it as follows: 1)arm-none-linux-gnueabi-objcopy -O binary -R .note -R .comment \ -S /home/linux-2.6.12/vmlinux /home/temp/vmlinux.bin 2)gzip -9 /home/temp/vmlinux.bin 3)mkimage -A arm -O linux -T kernel -C none \ -a 00008000 -e 00008000 \ -n 'Linux-2.6.12.6-arm1' -d /home/temp/vmlinux.bin.gz /home/temp/uImage At last, I load uImage to ram to run, but the following message happens:
Marvell>> tftp 0x400000 uImage Using egiga0 device TFTP from server 192.168.0.53; our IP address is 192.168.0.54 Filename 'uImage'. Load address: 0x400000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ########## done Bytes transferred = 1710086 (1a1806 hex) Marvell>> bootm 0x400000 ## Booting image at 00400000 ... Image Name: Linux-2.6.12.6-arm1 Created: 2008-02-03 17:12:54 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1710022 Bytes = 1.6 MB Load Address: 00008000 Entry Point: 00008000 Verifying Checksum ... OK OK
Starting kernel ... undefined instruction pc : [<ffffffff>] lr : [<00249274>] sp : 001ff16c ip : ffffffff fp : 001ff694 r10: 00000000 r9 : 002570a8 r8 : 001fffd4 r7 : 000000ff r6 : 0027ee58 r5 : 00000000 r4 : 0027ee58 r3 : 00008000 r2 : 00000100 r1 : 0000020e r0 : 00000000 Flags: NZCV IRQs off FIQs off Mode SYS_32 Resetting CPU ...
Can anybody tell me what happend? Thanks in advance!
With kind regards, Rboert