Hi Jattin,

I have following installed on my machine and want to develop a BPS for mips based board.

• eldk 3.1 mips-linux-x86
• U-Boot 1.1.1

I have setup the path to the installed eldk bins and setup the export CROSS_COMPILE to mips_4KC-.

I wanted to ensure that everything is setup correctly, so tried building the mips based boards such as purple and tb0229. In each case I get the following compile error.

mips_4KC-gcc -g -Os -D__KERNEL__ -DTEXT_BASE=0xB0000000 -I/home/jdudakia/u-boot-1.1.1/include -fno-builtin -ffreestanding -nostdinc -isystem /opt/eldk3.1/usr/bin/../lib/gcc-lib/mips-linux/3.3.3/include -pipe -DCONFIG_MIPS -D__MIPS__ -mcpu=4kc -EB -mabicalls -Wall -Wstrict-prototypes -c -o stubs.o stubs.c cc1: error: invalid option `cpu=4kc" make[1]: *** [stubs.o] Error 1 make[1]: Leaving directory `/home/jdudakia/u-boot-1.1.1/examples" make: *** [examples] Error 2

Your setup is ok. In newer toolchains (I believe it is actually in binutils, but I don't know which version causes this) the mcpu=4kc option does not exist anymore. You have to use -march=... --mtune=...

See this for more info:

http://gcc.gnu.org/onlinedocs/gcc-3.2.3/gcc/MIPS-Options.html#MIPS%20Options

The relevant file you have to edit is cpu/mips/config.mk.

Hope this helps.

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