diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
index 38312d8cde57f1b135421210a30fd66ef091ea0d..abf0845f5007ff470aafe920722f374d03ba5760 100644
--- a/arch/mips/include/asm/uasm.h
+++ b/arch/mips/include/asm/uasm.h
@@ -143,6 +143,7 @@ Ip_u2s3u1(_scd);
 Ip_u2s3u1(_sd);
 Ip_u2u1u3(_sll);
 Ip_u3u2u1(_sllv);
+Ip_u2u1s3(_sltiu);
 Ip_u2u1u3(_sra);
 Ip_u2u1u3(_srl);
 Ip_u3u2u1(_srlv);
diff --git a/arch/mips/mm/uasm-micromips.c b/arch/mips/mm/uasm-micromips.c
index 6128cf3c8f1c17c0bc65be01dad71c94ea73a6bc..e81649a0551b7b1dff5e910a510bf639f780485a 100644
--- a/arch/mips/mm/uasm-micromips.c
+++ b/arch/mips/mm/uasm-micromips.c
@@ -98,6 +98,7 @@ static struct insn insn_table_MM[] = {
 	{ insn_sd, 0, 0 },
 	{ insn_sll, M(mm_pool32a_op, 0, 0, 0, 0, mm_sll32_op), RT | RS | RD },
 	{ insn_sllv, M(mm_pool32a_op, 0, 0, 0, 0, mm_sllv32_op), RT | RS | RD },
+	{ insn_sltiu, M(mm_sltiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
 	{ insn_sra, M(mm_pool32a_op, 0, 0, 0, 0, mm_sra_op), RT | RS | RD },
 	{ insn_srl, M(mm_pool32a_op, 0, 0, 0, 0, mm_srl32_op), RT | RS | RD },
 	{ insn_srlv, M(mm_pool32a_op, 0, 0, 0, 0, mm_srlv32_op), RT | RS | RD },
diff --git a/arch/mips/mm/uasm-mips.c b/arch/mips/mm/uasm-mips.c
index 07184927b733362b81fc47a80301c372aa980bdf..8231d7ddeccd732fc54875fcd7791e6ba5325787 100644
--- a/arch/mips/mm/uasm-mips.c
+++ b/arch/mips/mm/uasm-mips.c
@@ -106,6 +106,7 @@ static struct insn insn_table[] = {
 	{ insn_sd,  M(sd_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
 	{ insn_sll,  M(spec_op, 0, 0, 0, 0, sll_op),  RT | RD | RE },
 	{ insn_sllv,  M(spec_op, 0, 0, 0, 0, sllv_op),  RS | RT | RD },
+	{ insn_sltiu, M(sltiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
 	{ insn_sra,  M(spec_op, 0, 0, 0, 0, sra_op),  RT | RD | RE },
 	{ insn_srl,  M(spec_op, 0, 0, 0, 0, srl_op),  RT | RD | RE },
 	{ insn_srlv,  M(spec_op, 0, 0, 0, 0, srlv_op),  RS | RT | RD },
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 29fc432788019064395a8b7779399df3d1eefe7f..3a3d8a21cd56b118c29f17be174bc6e87cf68d95 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -52,10 +52,10 @@ enum opcode {
 	insn_ext, insn_ins, insn_j, insn_jal, insn_jalr, insn_jr, insn_ld,
 	insn_ldx, insn_ll, insn_lld, insn_lui, insn_lw, insn_lwx, insn_mfc0,
 	insn_mfhi, insn_mtc0, insn_or, insn_ori, insn_pref, insn_rfe,
-	insn_rotr, insn_sc, insn_scd, insn_sd, insn_sll, insn_sllv, insn_sra,
-	insn_srl, insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall,
-	insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_xor,
-	insn_xori, insn_yield,
+	insn_rotr, insn_sc, insn_scd, insn_sd, insn_sll, insn_sllv, insn_sltiu,
+	insn_sra, insn_srl, insn_srlv, insn_subu, insn_sw, insn_sync,
+	insn_syscall, insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait,
+	insn_xor, insn_xori, insn_yield,
 };
 
 struct insn {
@@ -284,6 +284,7 @@ I_u2s3u1(_scd)
 I_u2s3u1(_sd)
 I_u2u1u3(_sll)
 I_u3u2u1(_sllv)
+I_u2u1s3(_sltiu)
 I_u2u1u3(_sra)
 I_u2u1u3(_srl)
 I_u3u2u1(_srlv)