[U-Boot] Building u-boot for the AT91RM9200-EK circa 2008

[Pink Boy <dasfoo@yahoo.com>]

Hi, first post here.

vis: Building u-boot for the AT91RM9200-EK circa 2008

Is this still possible all things considered? It appears that 
this board is left behind in a backwater sometime around 2006.

Problem is I need to compile a new version of u-boot for my 
new board based on the AT91RM9200 and I'm having a lot of trouble. 
My board is very closely based on the AT91RM9200-EK, pretty much 
the same except the flash has changed. So I need to modify u-boot 
to handle the new flash (AT49BV642D). I'm running into real 
problems, at least for a noob.

On my board I can get two versions of u-boot to run, the 1.1.5 
version that comes with the AT91RM9200 development kit. And an 
ancient u-boot 1.1.1 that I got off Atmel's website which 
surprisingly enough will write to the new flash chip I have 
installed, even though it thinks there is only 2M installed 
instead of 8M And I can use it to do setenv, etc and load 
uboot 1.1.5 into flash and boot linux over the network connection.

So far so good. So my hardware works, I just need a version of 
u-boot that supports the AT49BV642D. Patching the source seems 
easy enough. However. Problem is that the official distribution 
of u-boot has no support for the AT91RM9200-EK. Which is sad. 
Very very sad.

I tried compiling u-boot from scratch using the instructions 
on this page.

http://www.linux4sam.org/twiki/bin/view ... _x_sources

Namely,
wget ftp://ftp.denx.de/pub/u-boot/u-boot-1.1.5.tar.bz2
tar xvjf u-boot-1.1.5.tar.bz2
cd u-boot-1.1.5

wget ftp://www.linux4sam.org/pub/uboot/u-boo ... 5.diff.bz2
bzcat u-boot-1.1.5_atmel_1.5.diff.bz2 | patch -p1

Then

I fixed up two lines in the examples make file adding an .o 
at the end in order to make the 3.81 linker happy.

Line 147 :
  $(obj)%.srec: $(obj)%.o
Line 150
  $(obj)%.bin: $(obj)%.o

Then

make distclean
make at91sam9263ek_config
make CROSS_COMPILE=<path_to_cross-compiler/cross-compiler-prefix->

Where my compiler is 
   gcc version 3.4.3 (release) (CodeSourcery ARM Q1B 2005)

I've also tried 
   gcc version 4.1.1 (CodeSourcery ARM Sourcery G++ 2006q3-26)

and 
   gcc 4.1.1 from timesys.

In each case I get a built version of u-boot.bin. However when 
I download it the same way I use the other two wokring binaries
of u-boot that I have it just hangs with no output.

I've also tried gzipping it and trying to have boot.bin load it
from flash, but it hangs as well.

I also tried compiling with an old version of gcc 3.4.1 but it 
wouldn't compile the source due to a compiler bug/issue.  Google
indicates the error is due to the compiler assuming a hard fpu.

Anyone have advice on how to proceed from here?