diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 5e1b08b..d00f876 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -447,10 +447,10 @@
 	isa = (config0 & MIPS_CONF_AT) >> 13;
 	switch (isa) {
 	case 0:
-		c->isa_level = MIPS_CPU_ISA_M32;
+		c->isa_level = MIPS_CPU_ISA_M32R1;
 		break;
 	case 2:
-		c->isa_level = MIPS_CPU_ISA_M64;
+		c->isa_level = MIPS_CPU_ISA_M64R1;
 		break;
 	default:
 		panic("Unsupported ISA type, cp0.config0.at: %d.", isa);
@@ -568,7 +568,7 @@
 		break;
 	case PRID_IMP_34K:
 		c->cputype = CPU_34K;
-		c->isa_level = MIPS_CPU_ISA_M32;
+		c->isa_level = MIPS_CPU_ISA_M32R1;
 		break;
 	}
 }
@@ -647,7 +647,7 @@
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_PR4450:
 		c->cputype = CPU_PR4450;
-		c->isa_level = MIPS_CPU_ISA_M32;
+		c->isa_level = MIPS_CPU_ISA_M32R1;
 		break;
 	default:
 		panic("Unknown Philips Core!"); /* REVISIT: die? */
@@ -690,8 +690,8 @@
 	if (c->options & MIPS_CPU_FPU) {
 		c->fpu_id = cpu_get_fpu_id();
 
-		if (c->isa_level == MIPS_CPU_ISA_M32 ||
-		    c->isa_level == MIPS_CPU_ISA_M64) {
+		if (c->isa_level == MIPS_CPU_ISA_M32R1 ||
+		    c->isa_level == MIPS_CPU_ISA_M64R1) {
 			if (c->fpu_id & MIPS_FPIR_3D)
 				c->ases |= MIPS_ASE_MIPS3D;
 		}