U-Boot for Nios2 on DE2-115 Board with MMC/SPI support

[Altera_Forum]

Hello again, 

 i am trying to compile U-Boot for my DE2-115 board. I was able to compile U-Boot and run it on the Board, but now I want to add MMC/SPI support.  I added: # define CONFIG_CMD_MMC# define CONFIG_ALTERA_SPI   I am getting Errors when typing make:  common/built-in.o: In function `do_mmc': /home/jan/nios2-linux/nios2-linux/u-boot/common/cmd_mmc.c:33: undefined reference to `mmc_legacy_init' /home/jan/nios2-linux/nios2-linux/u-boot/common/cmd_mmc.c:33: relocation truncated to fit: R_NIOS2_CALL26 against `mmc_legacy_init'   I also tried to follow the instructions on the Altera-Wiki (http://www.alterawiki.com/wiki/u-boot_and_cyclone_ii-de2_boards#sd_card_over_spi_protocol), but they are very old and theme not to work with U-Boot 2015.04-rc1. Not even after reading this Thread (http://www.alteraforum.com/forum/showthread.php?t=24872)  Can anyone please tell me how to do this?  With best regards, Jan

[Altera_Forum]

I am trying to port U-boot to DE2-115 board. Am new to Altera. Can you tell how to start? please help

[Altera_Forum]

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 The Alter-Wiki is way out of date.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

[Altera_Forum]

--- Quote Start ---  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  --- Quote End ---    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