[microblaze-uclinux] uClinux on ml401

["Radde, Jarno" <jarno.radde@xxxxxxx>]

Hello,

I want to run uClinux on a ML401 evaluation board. I followed the
tutorial from Xilinx (http://www.xilinx.com/bvdocs/appnotes/xapp730.pdf)
and it runs now.

However I don't like to run it with the Microprocessor Debugger every
time (dow -data image.bin 0x24000000 ... con 0x24000000) so I am
searching for ways to "deploy" it permanently on the board.

I tried to use the Flash by downloading the image to flash using the EDK
tool (Device Configuration -> Program Flash Memory). After I did this I
wrote a small C application copying the data from the Flash to Ram and
then jumping to the base address of the ram. That does not work because
the data read from the flash is not the same as the one the image
contains. 

For each word read 16 bits are wrong and 16 are correct. For example I
expect 0x94208001 but I get 0xffff8001. I tried several times to find a
workaround for this and I even wrote my own "program flash memory"
program using the xflash_intel_l driver from Xilinx. I could not solve
the problem :(

After that I tried to use SystemACE, because this seemed to be exactly
what I wanted. I ran the genace script with the following parameters:

xmd -tcl genace.tcl -jprog -target mdm -hw implementation/download.bit
-elf /loadFromRam/executable.elf -data image.bin 0x2400000 -board ml401
-ace linux.ace

This runs about 3 hours (!) and creates a 85 mb (!) ace file when it is
finished that does not fit on the 256 Mbit (32 mb) flash card.

Any hints for me? How do you usually deploy uclinux on your boards?
Please help!

Sorry if I made any mistakes in using this mailing list, this is the
first time I use one.

Best regards

Jarno Radde

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