MIPS: Prevent building MT support for microMIPS kernels
We don't currently support the MT ASE for microMIPS kernels, and there are no CPUs currently in existence that use both. They can however both be enabled in Kconfig, resulting in build failures such as: AS arch/mips/kernel/cps-vec.o arch/mips/kernel/cps-vec.S: Assembler messages: arch/mips/kernel/cps-vec.S:242: Warning: the 32-bit microMIPS architecture does not support the `mt' extension arch/mips/kernel/cps-vec.S:276: Error: unrecognized opcode `mttc0 $13,$2,2' arch/mips/kernel/cps-vec.S:282: Error: unrecognized opcode `mttc0 $8,$1,2' arch/mips/kernel/cps-vec.S:285: Error: unrecognized opcode `mttc0 $0,$2,1' ... Fix this by preventing MT from being enabled when targeting microMIPS. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16951/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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