[U-Boot-Users] Help on mpc8260ads flash u-boot

[batsayan.das at tcs.com]

Hello,

The board is not exactly MPC8260ADS. It is similar to this and the RAM 
version of the u-Boot tree is abailable. Does this mean that we need to 
burn the flash with the  image (u-boot.bin OR u-boot.srec ?) we obtained 
by the compiling the RAM version of the u-Boot source tree? 

The flash attached to our board is mapped from 0x0 address. The u-boot 
document says that the SDRAM should be mapped to 0x0 to make it work. So, 
in my case as the flash is mapped to 0x0, then how shall I proceed?  Does 
the memory mapping is determined by the h/w  design of the board? 

As I know that HRCW of our board is stored from adress 0x0 to address 
0xFF. Does this mean we need to burn the image (u-boot.bin OR u-boot.srec 
?) from the adress 0x100?

Thanks,

Batsayan Das
Tata Consultancy Services Limited
Mailto: batsayan.das at tcs.com
Website: http://www.tcs.com



Wolfgang Denk <wd at denx.de> 
Sent by: u-boot-users-admin at lists.sourceforge.net
10/26/2005 03:29 PM

To
batsayan.das at tcs.com
cc
u-boot-users at lists.sourceforge.net
Subject
Re: [U-Boot-Users] Help on mpc8260ads flash u-boot






In message 
<OF277F660B.19F369DD-ON652570A6.0020CA43-652570A6.0024E9CA at tcs.com> you 
wrote:
> 
> We have a working RAM version of U-Boot for MPC8260ADS type customs 
board. 

What a waste of effort.  The  MPC8260ADS  board  is  supposed  to  be
working  out  of  the  box.  Why  are  you  wasting your time on some
unsupported mode of operation? You *did* read the FAQ, didn't you?
http://www.denx.de/wiki/view/DULG/CanUBootBeConfiguredSuchThatItCanBeStartedInRAM


> What the places we need to look into to convert this RAM version of 
U-Boot 
> to ROM/Flash version of U-boot. The objective is when power on the 
u-boot 

Nothing needs to be changed. This is the standard mode  of  operation
which works with the original U-Boot source tree.

> binary, so some part of the RAM version u-boot need to be modified to do 

> this. Is there any specific place in the u-boot tree where we need to 
make 

Just dump your RAM version. You just wasted your time on it.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
At the source of every error which is blamed on the computer you will
find at least two human errors, including the error of blaming it  on
the computer.


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