On 17:34 Fri 31 Oct , Pink Boy wrote:
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->
why do you try to use the at91sam9263ek board on the AT91RM9200EK?
and the AT91RM9200EK is not so far from the AT91SAM9200DK which is mainline
and they are not so much different execept some PIO settings
IIRC Ulf send some patch 2 years ago
Maybe he can resend a rebased version?
Anyone building a linux kernel using buildroot (http://buildroot.uclibc.org/). will get my patches vs U-Boot 1.2.0.
Since the U-Boot community insists that the tested working flash driver cannot be merged in the std U-boot, and has to be replaced by the CFI driver which does not work on the EK (I am told) I have no plans to resubmit at this time.
Best Regards, J.
Best Regards Ulf Samuelsson ulf@atmel.com Atmel Nordic AB Mail: Box 2033, 174 02 Sundbyberg, Sweden Visit: Kavallerivägen 24, 174 58 Sundbyberg, Sweden Phone +46 (8) 441 54 22 Fax +46 (8) 441 54 29 GSM +46 (706) 22 44 57