diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 4c9b679343674ab0ceaa04799654757391dd262c..dd693f992832c9897bf5647ecc68c4123b2e4472 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -1251,7 +1251,36 @@ EndEnum
 EndSysreg
 
 Sysreg	ID_AA64DFR1_EL1	3	0	0	5	1
-Res0	63:0
+Field	63:56	ABL_CMPs
+UnsignedEnum	55:52	DPFZS
+	0b0000	IGNR
+	0b0001	FRZN
+EndEnum
+UnsignedEnum	51:48	EBEP
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+UnsignedEnum	47:44	ITE
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+UnsignedEnum	43:40	ABLE
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+UnsignedEnum	39:36	PMICNTR
+	0b0000	NI
+	0b0001	IMP
+EndEnum
+UnsignedEnum	35:32	SPMU
+	0b0000	NI
+	0b0001	IMP
+	0b0010	IMP_SPMZR
+EndEnum
+Field	31:24	CTX_CMPs
+Field	23:16	WRPs
+Field	15:8	BRPs
+Field	7:0	SYSPMUID
 EndSysreg
 
 Sysreg	ID_AA64AFR0_EL1	3	0	0	5	4