diff --git a/sys/mips/include/asm.h b/sys/mips/include/asm.h
index 790024ff60d4..551d02c1cd51 100644
--- a/sys/mips/include/asm.h
+++ b/sys/mips/include/asm.h
@@ -725,9 +725,12 @@ _C_LABEL(x):
 #elif defined(CPU_RMI)
 #define	HAZARD_DELAY
 #define	ITLBNOPFIX
+#elif defined(CPU_MIPS74KC)
+#define	HAZARD_DELAY	sll $0,$0,3
+#define	ITLBNOPFIX	sll $0,$0,3
 #else
-#define	ITLBNOPFIX	nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;
-#define	HAZARD_DELAY	nop;nop;nop;nop;nop;
+#define	ITLBNOPFIX	nop;nop;nop;nop;nop;nop;nop;nop;nop;sll $0,$0,3;
+#define	HAZARD_DELAY	nop;nop;nop;nop;sll $0,$0,3;
 #endif
 
 #endif /* !_MACHINE_ASM_H_ */
diff --git a/sys/mips/include/cpuregs.h b/sys/mips/include/cpuregs.h
index 436a980785c4..be8414f8fc32 100644
--- a/sys/mips/include/cpuregs.h
+++ b/sys/mips/include/cpuregs.h
@@ -149,6 +149,11 @@
 #define	MIPS_CCA_CC	0x05	/* Cacheable Coherent. */
 #endif
 
+#if defined(CPU_MIPS74KC)
+#define	MIPS_CCA_UNCACHED	0x02
+#define	MIPS_CCA_CACHED		0x00
+#endif
+
 #ifndef	MIPS_CCA_UNCACHED
 #define	MIPS_CCA_UNCACHED	MIPS_CCA_UC
 #endif
@@ -204,12 +209,14 @@
 #define	COP0_SYNC	.word 0xc0	/* ehb */
 #elif defined(CPU_SB1)
 #define COP0_SYNC  ssnop; ssnop; ssnop; ssnop; ssnop; ssnop; ssnop; ssnop; ssnop
+#elif defined(CPU_MIPS74KC)
+#define	COP0_SYNC	 .word 0xc0	/* ehb */
 #else
 /*
  * Pick a reasonable default based on the "typical" spacing described in the
  * "CP0 Hazards" chapter of MIPS Architecture Book Vol III.
  */
-#define	COP0_SYNC  ssnop; ssnop; ssnop; ssnop; ssnop
+#define	COP0_SYNC  ssnop; ssnop; ssnop; ssnop; .word 0xc0;
 #endif
 #define	COP0_HAZARD_FPUENABLE	nop; nop; nop; nop;