[ECOS] PID ROM and eCos

Jonathan Larmour jlarmour@redhat.com
Wed Jan 24 11:08:00 GMT 2001


Gary Thomas wrote:
> 
> Look at the startup code for the Cirrus Logic EDB7xxx boards.  They
> support this configuration where the image in ROM (FLASH or whatever)
> is linked at an address different from where they are stored.  If
> this case is detected, the ROM code simply gets copied to RAM at
> startup time.  Look in the file:
>   hal/arm/edb7xxx/current/include/hal_platform_setup.h

Why was it done this way, and not with a more explicit ROMRAM startup type?
If you have a separate startup type it is more under user control.

Anyway, you can also refer to the way the mips vrc4373 or sh edk7708 do it,
which use an explicit ROMRAM startup.

Jifl
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