[En-Nut-Discussion] L9260 Initialization..[Was: Nut/OS Initialization ]

[Ole Reinhardt]

Hi John,

> I'm having trouble getting my JTAG adaptor  (USB-ARM-TINY) since I reloaded
> my PC last. Thanks my biggest headache now.
> 
> Is there a way to make NutOS boot from NANDFLASH on the L9260?

I recently ported Linux to the Ethernut5 plattform, which is using the
AT91SAM9XE512, which is quite (very!!) similar to the AT91SAM9260. There
I use U-Boot to boot linux, as well as NutOS programs.

For shure NutOS can not directly run out of the NAND flash, as the NAND
is not directly mapped into the memory space. But you can use some kind
of bootloader to load the NutOS application from NAND into ram and
execute it there...

Take a look to AT91Bootstrap for example. Check out:
http://www.linux4sam.org/twiki/bin/view/Linux4SAM/AT91Bootstrap

You simply put your NutOS application to the NAND instead of U-Boot. But
you can also you U-Boot as very comfortable bootloader which is able to
read the NAND flash and copy the NutOS application to RAM as well. Where
you can run it.

I'll extend my board support package to the Olimex board as well, so
there will be an updated u-boot image for the olimex plattform available
soon, wich will also be able to run NutOS.

Bye,

Ole

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