Linux on PPC

Wolfgang Denk wd at
Sat Mar 4 03:04:34 EST 2006

In message <4407CFD3.4060206 at> you wrote:
> If the vendor provided the VxWorks BSP, then hopefully they
> also provided you with the physical memory map of the board.
> This is what you really need to get another bootloader (eg. U-Boot)

This is *NOT* corect, and actually dangerous.

> Step 1. Get the memory map of the board.

Never use any given memory map unreflected. At least *check* if  it's
usable with Linux.

Many memory maps (especially those provides with some eval boards for
demonstration purpose) will NOT work with Linux.  Remember  that  the
memory  map  is  usually  not  cast  in  silicon,  but implemented in
software, so you can change it as needed.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at
C++ was an interesting and valuable experiment, but we've learned its
lessons and it's time to move on.
                            - Peter Curran in <DCqM4z.BxB at>

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