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

[FCG WANG Baohua]

Dear Frank:
  How can I revise the address of linked to boot in U-Boot Makefile or config file ? Thanks !
  I use the mkimage utility of PPCBoot to relocate the entry point to 0x1000, but I still get the 
 "starting at 0x280000.....". How to make it effect? 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 12:57
收件人: FCG WANG Baohua
主题: Re: ?-?¤: How to load a linux kernel under vxworks bootloader (PPC860 board)


Sorry,
But you will have to recompile u-boot at that address. It's
originally compiled and linked to boot at 0xfff00100. I don't
know what you have to do with vxWorks rom...

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

> 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é—′: 2005å¹′7月28æ—￥ 12:29
> 收件人: FCG WANG Baohua; linuxppc-embedded at ozlabs.org
> 主é￠˜: 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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