#define SYS_ID_AA64PFR0_EL1            sys_reg(3, 0, 0, 4, 0)
 #define SYS_ID_AA64PFR1_EL1            sys_reg(3, 0, 0, 4, 1)
-#define SYS_ID_AA64ZFR0_EL1            sys_reg(3, 0, 0, 4, 4)
 
 #define SYS_ID_AA64DFR0_EL1            sys_reg(3, 0, 0, 5, 0)
 #define SYS_ID_AA64DFR1_EL1            sys_reg(3, 0, 0, 5, 1)
 #define ID_AA64PFR1_MTE                        0x2
 #define ID_AA64PFR1_MTE_ASYMM          0x3
 
-/* id_aa64zfr0 */
-#define ID_AA64ZFR0_EL1_F64MM_SHIFT    56
-#define ID_AA64ZFR0_EL1_F32MM_SHIFT    52
-#define ID_AA64ZFR0_EL1_I8MM_SHIFT     44
-#define ID_AA64ZFR0_EL1_SM4_SHIFT      40
-#define ID_AA64ZFR0_EL1_SHA3_SHIFT     32
-#define ID_AA64ZFR0_EL1_BF16_SHIFT     20
-#define ID_AA64ZFR0_EL1_BitPerm_SHIFT  16
-#define ID_AA64ZFR0_EL1_AES_SHIFT      4
-#define ID_AA64ZFR0_EL1_SVEver_SHIFT   0
-
-#define ID_AA64ZFR0_EL1_F64MM_IMP      0x1
-#define ID_AA64ZFR0_EL1_F32MM_IMP      0x1
-#define ID_AA64ZFR0_EL1_I8MM_IMP       0x1
-#define ID_AA64ZFR0_EL1_BF16_IMP       0x1
-#define ID_AA64ZFR0_EL1_SM4_IMP                0x1
-#define ID_AA64ZFR0_EL1_SHA3_IMP       0x1
-#define ID_AA64ZFR0_EL1_BitPerm_IMP    0x1
-#define ID_AA64ZFR0_EL1_AES_IMP                0x1
-#define ID_AA64ZFR0_EL1_AES_PMULL128   0x2
-#define ID_AA64ZFR0_EL1_SVEver_SVE2    0x1
-
 /* id_aa64mmfr0 */
 #define ID_AA64MMFR0_ECV_SHIFT         60
 #define ID_AA64MMFR0_FGT_SHIFT         56