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?