U-Boot on Nios II Development Kit, Cyclone II Ed.

Altera_Forum · ‎01-27-2006

This is for if you've got the Nios II Development Kit, Cyclone II Edition and you want to use U-Boot on it. I've attached a patch that adds support for that kit's "standard" example design. The patch is for U-Boot 1.1.4.

To use:

cd ???/u-boot-1.1.4
patch -p1 < ???/u-boot-1.1.4-n2dkc2.patch
make EP2C35_config
make all

The configuration puts the console on the JTAG UART.

The patch also includes support for several other Altera boards from a custom U-Boot 1.1.3 version by Psyent.

Note: the patch also changes the tool names used from nios2-elf-* to nios2-linux-uclibc-*, so change it back if you're on Cygwin.

Altera_Forum · ‎01-27-2006

Just to be clear on small, but important point:

> The patch also includes support for several other Altera boards from a custom

> U-Boot 1.1.3 version by Psyent.

The sources at psyent.com are not custom at all ... they are taken directly from

the u-boot souce tree and contain all Nios-related patches that have been submitted

to the u-boot project. Any changes are simply the elimination of warnings or

build errors for the typical development environment (cygwin). Unfortunately, the

u-boot project is _very_ busy and patches can now take as long as several months

to be applied. All of the boards supported by the code at psyent are part of pending

u-boot patches.

Hopefully, this long delay between submitting patches and their application to

the main source tree should improve now that u-boot is using git. I'm currently

evaluating the feasibility of setting up a git repository for nios development -- to

make the latest nios patches available immediately and still maintain sync with

the latest platform independent code.

> the patch also changes the tool names used from nios2-elf-* to nios2-linux-uclibc-*

The normal way to do this with u-boot is to simply set CROSS_COMPILE with the

make command:

$ make CROSS_COMPILE=nios2-linux-uclibc-

Regards,

--Scott