Re: [microblaze-uclinux] Booting uClinux

[Ryan Ahern <supernaut@xxxxxxxxxxxxxx>]

Tyrone,

    Would you mind posting your .config file from your linux-2.4.x directory? I've been playing around all day with different kernel settings to no avail.  It still doesn't seem to pick up the filesystem.  I know the hardware is setup right since your image.bin still boots.  I even downgraded to 2.4.27 in an effort to mimic your image to a 'T'.

 Thanks for all the help you've provided so far -- hopefully I can get this thing figured out soon.

-- Ryan



Ryan Ahern wrote:

She boots without much of a problem! Its a good start.  I've based my design on the files Tyrone provided and his kernel image (2.4.27-uc1) works fine.  The issue I'm running into now, however, is that the kernel still hangs at "Freeing init memory" whenever I compile my kernel (2.4.29-uc0).  Thanks to Tyrone, I know my EDK configuration is correct now... is there anything I'm missing?

I've modified the following files to reflect the design:
    drivers/mtd/maps/mbvanilla-flash.c
    include/asm-microblaze/mbvanilla.h
Is there anything else?

Also, does anyone know what the BUS_WIDTH variable in mbvanilla-flash.c represents? Evidently not the data bus width of the flash as I had originally thought.

Thanks,
    Ryan Ahern


Ryan Ahern wrote:

This is a huge help! Thanks a lot for the new direction... I'll let you know how it goes.

-- Ryan


Tyrone Kwok wrote:

Ryan,

You can download my EDK 6.2 project at:
http://www.eee.hku.hk/~tokwok/MB-3s400c.zip

Please kindly note that:
1. My system runs at 40MHz.
2. In the ZIP file, I have included a kernel image (image.bin) for your testing.
3. The flash is only used for downloading the kernel image to RAM, and hence
    I haven't enabled the flash in uClinux yet.

Hope this helps!

Cheers,
Tyrone


On 4/20/05, Ryan Ahern <supernaut@escaperisk.com> wrote:
  

Tyrone,

    What did you use to test the flash to ensure proper reading/writing? 

    Would you also mind posting your MHS file? I'd really like to take a
look and see where my Flash settings are off.

    Thanks,
          Ryan

Tyrone Kwok wrote: 
Hi,
    

I am also using the NuHorizons S400 board and using EDK6.2. I
  

would
    

like to ask if
you have enabled the RAM filesystem support in:

Memory
  

Technology Devices (MTD) | Mapping drivers for chip access |
    

Generic uClinux
  

RAM/ROM filesystem support
    

BTW, with reference to David's S1500 design
  

files, I am able to use
    

the flash on that board to download the kernel
  

image. (Thanks David
    

;-)

Cheers,
Tyrone

 
  

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