No subject

working.
and so far ive spent 2days trying to hand control from u-boot to the linux
kernel.

In my opinion you should not use your vxWorks BSPs. the features in u-boot
are far better
than those we have in our vxWorks BSP.
You use alot of the values from your vxWorks for example the UPM tables.
The chip selects etc etc.
Just plug in those values from your vxWorks bsp into custom board u-boot
"bsp"
you should find you can get it running very quickly.



-----Original Message-----
From: David Aldrich [mailto:david.aldrich at t-modus.nec.co.uk]
Sent: 10 December 2003 11:00
To: 'u-boot-users at lists.sourceforge.net'
Subject: [U-Boot-Users] Linux port for MPC855T


Hi

I have newly subscribed to this mailing list.  I notice that neither the
ppcboot nor the uboot lists are presently archived on Sourceforge, so I
cannot see how active the lists are.  I wish to discuss Linux BSPs for
MPC855T.  Is the uboot list appropriate for such discussion?

I am evaluating the use of Embedded Linux on MPC860 PowerPC,
specifically the MPC855T.  I am currently requesting quotations from
Linux suppliers to port Linux to our 855T card.  Currently, we run
VxWorks on this card so a VxWorks BSP is fully tested.  

I know that a major part of the port will be programming the 855T's UPM
(User Programmable Machine) that is responsible for setting up memory
controller, CPU core etc.  I would like advice on how to handle this.

- Should such setup be already available in an open source Linux MPC860
BSP?
- Should I try to make use of our existing BSP?
- Is it reasonable for the supplier to quote for BSP development or
should they be using open source code?

I will be grateful for any advice, as this is a very new area for me.

Best regards

David



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