1721249b0SArvind Ram Prakash /* 2721249b0SArvind Ram Prakash * Copyright (c) 2024, Arm Limited and Contributors. All rights reserved. 3721249b0SArvind Ram Prakash * 4721249b0SArvind Ram Prakash * SPDX-License-Identifier: BSD-3-Clause 5721249b0SArvind Ram Prakash */ 6721249b0SArvind Ram Prakash 7721249b0SArvind Ram Prakash /* Runtime C routines for errata workarounds and common routines */ 8721249b0SArvind Ram Prakash 9721249b0SArvind Ram Prakash #include <arch.h> 10721249b0SArvind Ram Prakash #include <arch_helpers.h> 11721249b0SArvind Ram Prakash #include <cortex_a520.h> 12721249b0SArvind Ram Prakash #include <cortex_x4.h> 13*7f152ea6SSona Mathew #include <cortex_a75.h> 14721249b0SArvind Ram Prakash #include <lib/cpus/cpu_ops.h> 15721249b0SArvind Ram Prakash #include <lib/cpus/errata.h> 16721249b0SArvind Ram Prakash 17721249b0SArvind Ram Prakash #if ERRATA_A520_2938996 || ERRATA_X4_2726228 18721249b0SArvind Ram Prakash unsigned int check_if_affected_core(void) 19721249b0SArvind Ram Prakash { 20721249b0SArvind Ram Prakash uint32_t midr_val = read_midr(); 21721249b0SArvind Ram Prakash long rev_var = cpu_get_rev_var(); 22721249b0SArvind Ram Prakash 23721249b0SArvind Ram Prakash if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) { 24721249b0SArvind Ram Prakash return check_erratum_cortex_a520_2938996(rev_var); 25721249b0SArvind Ram Prakash } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) { 26721249b0SArvind Ram Prakash return check_erratum_cortex_x4_2726228(rev_var); 27721249b0SArvind Ram Prakash } 28721249b0SArvind Ram Prakash 29721249b0SArvind Ram Prakash return ERRATA_NOT_APPLIES; 30721249b0SArvind Ram Prakash } 31721249b0SArvind Ram Prakash #endif 32*7f152ea6SSona Mathew 33*7f152ea6SSona Mathew #if ERRATA_A75_764081 34*7f152ea6SSona Mathew bool errata_a75_764081_applies(void) 35*7f152ea6SSona Mathew { 36*7f152ea6SSona Mathew long rev_var = cpu_get_rev_var(); 37*7f152ea6SSona Mathew if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) { 38*7f152ea6SSona Mathew return true; 39*7f152ea6SSona Mathew } 40*7f152ea6SSona Mathew return false; 41*7f152ea6SSona Mathew } 42*7f152ea6SSona Mathew #endif /* ERRATA_A75_764081 */ 43