>> +cflags-$(CONFIG_CPU_LOONGSON2) += -march=r4600 -Wa,--trap > > I wonder why this is r4600. I heard the Loongson2 is MIPS IV compatible, > so r5000 / r8000 / r10000 would be better choices. Presently Loongson-2E is nearly MIPS III compatible(with some self-defined extensions), next version will be mips64 release2 compatible. -march=r4600 is inherited from loongson-1, -march=mips3 might be a better choice. > > > Thiemo > > > >