Guido Guenther wrote: [snip] > > -march=BAR: > > Allow opcodes for CPU BAR in addition to the ISA ones. > > > > -mtune=BAZ: > > Optimize opcode scheduling for CPU BAZ. > So to build kernels for say IP22 R5k I'd change the current > GCCFLAGS += -mcpu=r5000 -mips2 -Wa,--trap > to > GCCFLAGS += -mabi=o32 -march=R5000 -mtune=R5000 -Wa,--trap > where as for R4X00 I use > GCCFLAGS += -mabi=o32 -march=R4600 -mtune=R4600 -Wa,--trap > Correct? Yes, this should work. You can leave the -mtune out, since it defaults to the value of -march anyway. Thiemo
