uboot problem about "bootm" command

[Altera_Forum]

Please please please help me. 

 I am almost crazy.  The following is the problem description.  Now, I have a DE0 board, uClinux kernel, NIOSII processor, and u-boot.  The version of uClinux kernel is uClinux-dist-20110603.  The NIOS II version is 10.1 and quartus II version is 10.1.  The u-boot version is u-boot-2011.06.  I want to download the .sof file to DE0 board and then boot kernel.   I have the three way to achieve the goal. I fail in one of them which is used the "bootm" command.  First, I don't use the u-boot to boot kernel. (OK:)) Directly download the kernel to the memory and then boot kernel. (I use the compressed image kernel which is not .gz file but through "misc.c" )   --- Quote Start ---   [NIOS2_EDS] nios2-download -g zImage [NIOS2_EDS] nios2-terminal   --- Quote End ---    Second, I use the u-boot's "go"command to boot kernel. (OK:)) Directly download the kernel to flash by using "flash programmer tool" of NIOS IDE. And then I copy the image kernel from flash through "cp.b" command. Finally, I key in "go" command booting kernel.(I use the uncompressed image kernel which is not through "misc.c")    --- Quote Start ---   ==>cp.b 02400000 01800000 400000 ==>go 01800000   --- Quote End ---     Third, I use the u-boot's "bootm" command to boot kernel. (FAIL:cry::) (I use the compressed image kernel which is not .gz file but through "misc.c")  1. I create the uImage through the "mkimage" tool.  The following is the settings    --- Quote Start ---   mkimage -n 'linux- 2.6' -A nios2 -O linux -T kernel -C none -a 0x01800000 -e 0x01800040 -d zImage uImage_18   --- Quote End ---      --- Quote Start ---   mkimage -n 'linux- 2.6' -A nios2 -O linux -T kernel -C none -a 0x01800000 -e 0x01800000 -d zImage uImage_1D   --- Quote End ---    The following is board information   --- Quote Start ---   ==> bdinfo mem start = 0x01800000 mem size = 0x00800000 flash start = 0x82400000 flash size = 0x00400000 flash offset= 0x00000019 ethaddr = (not set) ip_addr = 0.0.0.0 baudrate = 1 bps   --- Quote End ---     2. bootm command  A. copy uImage_18   --- Quote Start ---   ==>cp.b 02400000 01800000 200000 ==>bootm 01800000 -  # # Booting kernel from Legacy Image at 01800000 ... Image Name: linux- 2.6 Image Type: NIOS II Linux Kernel Image (uncompressed) Data Size: 1457595 Bytes = 1.4 MiB Load Address: 01800000 Entry Point: 01800040 Verifying Checksum ... OK XIP Kernel Image ... OK <-----------------------------(stuck here.......)    --- Quote End ---     B. copy uImage_1D   --- Quote Start ---   ==>cp.b 02400000 01D00000 200000 ==>bootm 01D00000 -  # # Booting kernel from Legacy Image at 01D00000 ... Image Name: linux- 2.6 Image Type: NIOS II Linux Kernel Image (uncompressed) Data Size: 1457595 Bytes = 1.4 MiB Load Address: 01800000 Entry Point: 01800000 Verifying Checksum ... OK Loading Kernel Image ... OK <-----------------------------(stuck here.......)   --- Quote End ---    Could you give me "any any any" suggestions. I need them. Please please help me. God bless you. Thank you very much.

[Altera_Forum]

Please do not post your question multiple times.... just choose a forum and put it there

[Altera_Forum]

--- Quote Start ---  Please do not post your question multiple times.... just choose a forum and put it there  --- Quote End ---    Sorry, I would not do that.  Excuse me,could you give me some suggestion about this problem. Thank you very much.