Re: [microblaze-uclinux] loading image.bin from CompactFlash/SystemACE

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi Antti,

Welcome to the list.  Please see my comments below.

antti@openchip.org wrote:

> I wonder only if the image.bin from John Williams
> website "demo package" can work with no modification on ML300 ? 
> I made a system as much "vanilla" as I could but I dont only have
> BRAM and DDR, so not sure if that is sufficient. Right now after jump
> to 0x80000000 there is totally nothing. Image seems to be OK at least
> the first 3 instructions at 0x8000000 are "disable interrupt" what
> sounds like OK.

I took a quick look at your system.mhs for the ml300 - the most obvious 
difference from mbvanilla is the ordering of signals into the interrupt 
controller, which will result in different IRQ numberings for the 
peripherals.

In particular, the UARTs are not in the "right places" to receive their 
interrupts.  Instead, I see you have some IIC signals at those interrupt 
vectors.

I would fix this first and try again.

The usual advice for getting microblaze uclinux up on a new board is 
actually to port the hardware - ie start with the mbvanilla_net 
system.mhs and morph it to work on your board.  There's so many little 
things that can be wrong, it seems easier to go that way, than to start 
from scratch and try to reverse engineer the platform.

Regards,

John


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