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Redboot 2.04 version fconfig does not save changes


Hello Everybody,
 
This is my first mail to this forum. Iam very new to this field. 
 
I have a target customised platform having IXP422(266MHz) chipset, having
8MB Flash(16bit) and 16MB SDRAM (2 chips of winbond 16MB each chips having
D0-D15 and D16-D31 lines connected respectively and connected to CS0 of
IXP422. this also has console connnected to UART1 and LAn etc. 

I downloaded the pre built utilities (redboot_ROM.bin)from the Intel website
for IXDP425 (development platform) and ported in to the board using the ICE
Emulator. 
 
I could see the bootloader coming up and the redboot prompt on the console
as below

RedBoot> +...
RedBoot(tm) bootstrap and debug environment [ROM]
Red Hat certified release, version 2.04 - built 15:42:38, Mar 21, 2007 
Platform: IXDP425 Development Platform (IXP425 533) BE
Copyright (C) 2000, 2001, 2002, 2003, 2004, 2007 Free Software Foundation,
Inc...... etc
RedBoot> 
 
I typed "fconfig" 

RedBoot> fconfig
Run script at boot: false
Use BOOTP for network configuration: true
 
Here I changed by using the backspace key to false and entered the IP
address and gateway etc. 
Lastly, 

Update RedBoot non-volatile configuration - continue (y/n)? y
... Unlock from 0x50fe0000-0x51000000: .
... Erase from 0x50fe0000-0x51000000: .
... Program from 0x0ffd000-0x0fff000 at 0x50fe0000: . 
... Lock from 0x50fe0000-0x51000000: .
RedBoot> 
 
After this i tried  ping -h and the host IP but it showed a all zero class
ip
 
What could be causing this problem? 

Another thing is when i try booting the target customised board with the
redboot_RAM.bin prebuilt file, nothin appears on the console (hyperterminal)

Also I have few more questions..
I have downloaded the source for redboot for IXPxx platform. Can i compile
this with the arm-linux-tools-20061213.tar.gz toolchain. Can someone guide
me through this. I want to compile this for a Big Endian. is there any
configuration i have to made to my this toolchain?

I would also like to download the redboot-xscale source code of version
1.92. Where can I find it? Can someone give me the link? I tried the CVS in
ecos.sourceware but I dont seem to find it there. 

Another question I would like to ask is in the Redboot source for IXDP425,
Can someone tell me what is the SDRAM settings. I feel that maybe my SDRAM
settings for my customised target board may not be same as the IXDP425
board.
Can someone help me find the SDRAM settings for SDRAM configuration, SDRAM
mode, SDRAM refresh count. Iam unable to find it in the source. 
I think I found the Sdram referesh count as 0x411, but iam not sure. Can
someone help me verify?
 
Pl help!!
 
Regards

Queenie

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