Re: AW: [microblaze-uclinux] booting uClinux from FLASH

[anand_12 <anand_12@xxxxxxxxxxxx>]

Hi jan,

 Thanks a lot for your help...it is really useful..:-)..
i guess john's site is currently getting updated..so the pages were loading very slowly..more over some documentation  particularly regarding FLASH were not present..maybe he is rewriting/rearranging the documentation...or maybe it was just a lousy internet connection at my place...:-)..



cheers

V.Anand
(www.tenet.res.in)












Hi anad,
>
>I was a little bit to fast, sorry. The old Documentatiopn described this issue in detail, at leat I think it did. You can burn your image.bin into flash using flashtools for xmd
>http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux/Downloads/_files/flashtools.tar.gz
>
>Check out the demo package
>http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux/Downloads/demo_packages.html
>
>Provided by john. In the readme you find how to put your image into flash.
>I hope that helps.
>
>Regards
>Jan
>
>
>
>
>> -----Ursprüngliche Nachricht-----
>> Von: anand_12 [mailto:anand_12@tenet.res.in] 
>> Gesendet: Montag, 19. Juli 2004 12:14
>> An: microblaze-uclinux@itee.uq.edu.au
>> Betreff: [microblaze-uclinux] booting uClinux from FLASH
>> 
>> 
>> 
>> 
>> Hi all
>> 
>> 
>>  We have a memec spartan 2E (microblaze) board running 
>> uClinux which is directly connected now to the LAN hub with 
>> its own internal IP address.Till now,we were using XMD each 
>> time to download the image on to the SDRAM and then boot from 
>> there.But now we want to use FLASH to boot our image. (I mean 
>> FLASH to store the image,and move it to SDRAM to execute it)
>> 
>>  We have 8MB of FLASH on the P160 extension module(1MB SRAM 
>> also).I have some doubts regarding FLASH :
>> 
>> 1. How do we program the FLASH chip on the board?Are there 
>> any tools by which we can directly download the image onto 
>> the FLASH?If yes,then which image will we download,image.bin 
>> or image.elf??
>> 
>> 2. Microblaze as such is designed to start executing from 
>> physical address 0x00000000 on reset.This is mapped to the 
>> internal BRAM.So is this where our bootloader should reside?
>> 
>> 3. What exactly should the bootloader do?I mean,will the 
>> bootloader assume that there is an image already existing in 
>> the FLASH so that it can just issue instructions to move the 
>> image from FLASH to RAM and then start executing it?
>> 
>>  Otherwise,will the bootloader also burn the image on to the 
>> FLASH and then subsequently move it to RAM?
>> 
>>  I am not very sure about this.Can anybody help me with this?
>> 
>> Now that we have a fully functional ethernet connection on 
>> board,can we  use any net based tool to directly 
>> program/update the FLASH?
>> 
>> I have checked the mailing list posts on the website for any 
>> FLASH related information.Though I did find something about 
>> an 'elfloader' and 'u-boot port for Microblaze'..its usage 
>> and availability was not immediately clear.
>> 
>> Can we use XMD to download the image on to the FLASH?
>> 
>> 
>> Thanks in advance for any information in this regard.
>> 
>> Cheers
>> 
>> V.Anand
>> (www.tenet.res.in)
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> ****************************************
>> 
>> -----
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-----
  Trouble with windows? Re boot.... 
  Trouble with Linux? Be root....
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