diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index 13a8c79..7f3e9fa 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -117,6 +117,9 @@
 #define ID_AA64PFR0_SVE_SHIFT	U(32)
 #define ID_AA64PFR0_SVE_MASK	U(0xf)
 #define ID_AA64PFR0_SVE_LENGTH	U(4)
+#define ID_AA64PFR0_CSV2_SHIFT	U(56)
+#define ID_AA64PFR0_CSV2_MASK	U(0xf)
+#define ID_AA64PFR0_CSV2_LENGTH	U(4)
 
 /* ID_AA64DFR0_EL1.PMS definitions (for ARMv8.2+) */
 #define ID_AA64DFR0_PMS_SHIFT	U(32)