ID_AA64ISAR0_CRC32_BASE
MRS_HWCAP(1, HWCAP_CRC32, ID_AA64ISAR0_CRC32_BASE),
ID_AA64ISAR0_CRC32_BASE |
if (ID_AA64ISAR0_CRC32_VAL(reg) >= ID_AA64ISAR0_CRC32_BASE)