| /* |
| * Copyright (c) 2024, Arm Limited and Contributors. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| /* Runtime C routines for errata workarounds and common routines */ |
| |
| #include <arch.h> |
| #include <arch_helpers.h> |
| #include <cortex_a520.h> |
| #include <cortex_x4.h> |
| #include <cortex_a75.h> |
| #include <lib/cpus/cpu_ops.h> |
| #include <lib/cpus/errata.h> |
| |
| #if ERRATA_A520_2938996 || ERRATA_X4_2726228 |
| unsigned int check_if_affected_core(void) |
| { |
| uint32_t midr_val = read_midr(); |
| long rev_var = cpu_get_rev_var(); |
| |
| if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) { |
| return check_erratum_cortex_a520_2938996(rev_var); |
| } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) { |
| return check_erratum_cortex_x4_2726228(rev_var); |
| } |
| |
| return ERRATA_NOT_APPLIES; |
| } |
| #endif |
| |
| #if ERRATA_A75_764081 |
| bool errata_a75_764081_applies(void) |
| { |
| long rev_var = cpu_get_rev_var(); |
| if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) { |
| return true; |
| } |
| return false; |
| } |
| #endif /* ERRATA_A75_764081 */ |