答复: How to load a linux kernel under vxworks bootloader (PPC860 board)

[FCG WANG Baohua]

Dear Frank:
 I cannot replace the vxWorks bootrom because I have no source and bin files of vxworks bootloader, I have even no the 
 hardware diagram resource of my PPC 860 board.  If I write the U-Boot into the rom, I most possible cannot bootup the board.
 How to download the U-Boot into RAM directly using the vxWorks bootloader, I tried to load the U-Boot ELF image but get the same 
 result "starting at 0x280000 ..." then no response from the serial console.
 The only thing I can do is use vxWorks TFTP to download the ELF image for linux kernel or U-Boot into RAM. 
  Can you tell me how to slove the  U-Boot "starting at 0x280000 ..."  problem ? thanks!
  

-----原始邮件-----
发件人: Frank [mailto:frannk_m1 at yahoo.com]
发送时间: 2005年7月28日 12:29
收件人: FCG WANG Baohua; linuxppc-embedded at ozlabs.org
主题: Re: How to load a linux kernel under vxworks bootloader (PPC860 board)




--- FCG WANG Baohua <Baohua.WANG at alcatel-sbell.com.cn> wrote:

> Dear All:
>   I want to boot a linux 2.4.25 kernel under vxworks
> bootloader. When I using flat mode(0x200000 -->  0x10000)
> kernel  uncompressed ELF format ( vmlinux ),
>  and download it using TFTP of vxworks, it print the "starting
> at 0x1000 ...." and  freeze.  No input or output on serial
> port.
>  The version of vxworks is 5.3.1. 
>  can you give me some detail advice or give me a tool to slove
> it? thanks !

Do what I did:
Replace the vxWorks rom with you u-boot and you can boot Linux
or vxWorks with the same bootloader.

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