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Jan
I am trying to build Uboot for Nios2 also. No luck but I have learned
a few things.
Uboot configuration for nios2 has changed significantly.
The Alter-Wiki is way out of date. It didn't work for me either.
There is a special git repo for nios2 at git://
git.denx.de/u-boot-nios.git.
Uboot is moving to Kconfig and Make files - i.e. "boards.cfg" is deprecated.
This explains why I did not find "boards.cfg" after git cloning.
I tried the following on Linux bash.
> git clone git://
git.denx.de/u-boot-nios.git > cd u-boot-nios/
> make menuconfig
These proceeding steps complete with no visible errors or warnings. Make menuconfig
has a lot of configuration options - it may support what you are trying to do.
You can also run > make config and you'll get many, many configuration choices.
Then I run
> make all
This step fails for me with the following error
LD arch/nios2/cpu/built-in.o
/bin/sh: nios2-elf-ld.bfd: command not found
scripts/Makefile.build:354: recipe for target 'arch/nios2/cpu/built-in.o' failed
make[1]: *** [arch/nios2/cpu/built-in.o] Error 127
Makefile:1037: recipe for target 'arch/nios2/cpu' failed
make: *** [arch/nios2/cpu] Error 2
I confirmed that both 'nios2-elf-gcc' and 'nios2-elf-ld' are in the path and are executable.
And since I have been running Nios2 successfully on Linux this should indicate my 'nios2-elf-gcc' and 'nios2-elf-ld'
should be OK. It appears the compile completed but the nios2 linker is not found.
Just a heads-up that have been some big changes for the steps required for building Uboot for nios2.
Sorry, but I have not found any up-to-date build instructions either.
Dave
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To solve the problem of not finding the linker - I had to set the CROSS_COMPILE environment variable
using these bash commands.
> CROSS_COMPILE=nios2-elf-
> export CROSS_COMPILE
Then run make and the build completed with no errors.
(Now, I need to try to load and test on my nios2 hardware).
THIS WAS documented in the README file starting at line 4929. So I deserve a
"RTFM idiot". BTW, the README file has 6515 lines.
But no doubt - the Uboot build steps for nios2 (on Linux) after cloning the current git repo
- have changed substantially. Just for starters, the Altera Wiki said you only need to set CROSS_COMPILE
if NOT using the packaged nios2-elf-gcc compiler. So when I did not set this environment variable - I
received the link error. So, technically speaking - the nios2-elf-gcc was found without setting CROSS_COMPILE,
but the linker was NOT found. And the 'boards.cfg' file does NOT exist in the recent git repo. I was able to build
successfully without this file.
Dave
Honored Contributor
