Index: sys/arm64/arm64/identcpu.c
===================================================================
--- sys/arm64/arm64/identcpu.c
+++ sys/arm64/arm64/identcpu.c
@@ -134,6 +134,7 @@
 /* Cavium */
 static const struct cpu_parts cpu_parts_cavium[] = {
 	{ CPU_PART_THUNDERX, "ThunderX" },
+	{ CPU_PART_THUNDERX2, "ThunderX2" },
 	CPU_PART_NONE,
 };
 
Index: sys/arm64/include/cpu.h
===================================================================
--- sys/arm64/include/cpu.h
+++ sys/arm64/include/cpu.h
@@ -97,6 +97,8 @@
 #define	CPU_REV_THUNDERX_1_0	0x00
 #define	CPU_REV_THUNDERX_1_1	0x01
 
+#define	CPU_REV_THUNDERX2_0	0x00
+
 #define	CPU_IMPL(midr)	(((midr) >> 24) & 0xff)
 #define	CPU_PART(midr)	(((midr) >> 4) & 0xfff)
 #define	CPU_VAR(midr)	(((midr) >> 20) & 0xf)