[powerpc bsp] linkcmd.dl?

Gene Smith gds at chartertn.net
Sat Sep 4 23:23:54 UTC 2004

Jay Monkman wrote, On 09/04/2004 04:47 PM:
> On Sat, Sep 04, 2004 at 03:36:39PM -0400, Gene Smith wrote:
>>Most of the powerpc bsp's have file in the start directory called 
>>linkcmd.dl which differs from the standard linkcmd file. Does anyone 
>>know what these linkcmd.dl files are for? I can't find them mentioned in 
>>the manual. The linkcmd files all mention "gnu.linkonce" while the *.dl 
>>files don't.
> From helas403/.../linkcmds:
>   *  This file is intended to be used together with flashentry.s
>   *  it will generate a ROM that can be started directly after powerup reset
> From helas403/.../linkcmds.dl:
>   *  This file is intended to be used together with dlentry.s
>   *  it will generate downloadable code

Thanks for pointing this out (I should have looked closer at helas). I 
was maininly looking at the gen405 bsp and in it both linkcmds said they 
were for "downloadable code." I need something that boots from flash for 
a 405GPr so the helas403 flashentry.S and linkcmds is more what I need 
than gen405. I need it to boot from flash and copy its whole image to 
ram and then run from ram. Helas seems to run from flash so I need to 
look into this.

What are the important differences between the ppc403x and ppc405x? On 
the IBM site all I can find is 405x and 440x docs. I thought I saw 
somewhere that the 403 has no MMU and slower clock and possibly uses 
more power.

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