maxime louvel wrote:

Hi again,

this time I have tried to compile the kernel, with an embedded compiler 
on the board.
here is the result...

....
  BOOTAS  arch/powerpc/boot/ps3-hvcall.o
  BOOTCC  arch/powerpc/boot/ps3.o
  BOOTCC  arch/powerpc/boot/treeboot-bamboo.o
  BOOTCC  arch/powerpc/boot/cuboot-8xx.o
  BOOTCC  arch/powerpc/boot/cuboot-pq2.o
  BOOTCC  arch/powerpc/boot/cuboot-sequoia.o
  BOOTCC  arch/powerpc/boot/treeboot-walnut.o
Assembler messages:
Error: Internal assembler error for instruction icbt
Internal error, aborting at ../../gas/config/tc-ppc.c line 1300 in 
ppc_setup_opcodes
Please report this bug.
make[2]: *** [arch/powerpc/boot/treeboot-walnut.o] Error 2
make[1]: *** [uImage] Error 2
make: *** [sub-make] Error 2

That's a bug in older toolchains, which is aggravated by a misguided 
policy that we build all wrapper platforms, always.  Either use a newer 
toolchain, or remove treeboot-walnut from arch/powerpc/boot/Makefile.

-Scott