1721249b0SArvind Ram Prakash /* 27455cd17SGovindraj Raja * Copyright (c) 2024-2025, 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> 117455cd17SGovindraj Raja #include <cortex_a75.h> 12721249b0SArvind Ram Prakash #include <cortex_a520.h> 13463b5b4aSGovindraj Raja #include <cortex_a710.h> 1426437afdSGovindraj Raja #include <cortex_a715.h> 15*050c4a38SGovindraj Raja #include <cortex_a720.h> 16721249b0SArvind Ram Prakash #include <cortex_x4.h> 17721249b0SArvind Ram Prakash #include <lib/cpus/cpu_ops.h> 18721249b0SArvind Ram Prakash #include <lib/cpus/errata.h> 19721249b0SArvind Ram Prakash 20721249b0SArvind Ram Prakash #if ERRATA_A520_2938996 || ERRATA_X4_2726228 21721249b0SArvind Ram Prakash unsigned int check_if_affected_core(void) 22721249b0SArvind Ram Prakash { 23721249b0SArvind Ram Prakash uint32_t midr_val = read_midr(); 24721249b0SArvind Ram Prakash long rev_var = cpu_get_rev_var(); 25721249b0SArvind Ram Prakash 26721249b0SArvind Ram Prakash if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) { 27721249b0SArvind Ram Prakash return check_erratum_cortex_a520_2938996(rev_var); 28721249b0SArvind Ram Prakash } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) { 29721249b0SArvind Ram Prakash return check_erratum_cortex_x4_2726228(rev_var); 30721249b0SArvind Ram Prakash } 31721249b0SArvind Ram Prakash 32721249b0SArvind Ram Prakash return ERRATA_NOT_APPLIES; 33721249b0SArvind Ram Prakash } 34721249b0SArvind Ram Prakash #endif 357f152ea6SSona Mathew 367f152ea6SSona Mathew #if ERRATA_A75_764081 377f152ea6SSona Mathew bool errata_a75_764081_applies(void) 387f152ea6SSona Mathew { 397f152ea6SSona Mathew long rev_var = cpu_get_rev_var(); 407f152ea6SSona Mathew if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) { 417f152ea6SSona Mathew return true; 427f152ea6SSona Mathew } 437f152ea6SSona Mathew return false; 447f152ea6SSona Mathew } 457f152ea6SSona Mathew #endif /* ERRATA_A75_764081 */ 467455cd17SGovindraj Raja 477455cd17SGovindraj Raja bool errata_ich_vmcr_el2_applies(void) 487455cd17SGovindraj Raja { 497455cd17SGovindraj Raja switch (EXTRACT_PARTNUM(read_midr())) { 50463b5b4aSGovindraj Raja #if ERRATA_A710_3701772 51463b5b4aSGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A710_MIDR): 52463b5b4aSGovindraj Raja if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES) 53463b5b4aSGovindraj Raja return true; 54463b5b4aSGovindraj Raja break; 55463b5b4aSGovindraj Raja #endif /* ERRATA_A710_3701772 */ 56463b5b4aSGovindraj Raja 5726437afdSGovindraj Raja #if ERRATA_A715_3699560 5826437afdSGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A715_MIDR): 5926437afdSGovindraj Raja if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES) 6026437afdSGovindraj Raja return true; 6126437afdSGovindraj Raja break; 6226437afdSGovindraj Raja #endif /* ERRATA_A715_3699560 */ 6326437afdSGovindraj Raja 64*050c4a38SGovindraj Raja #if ERRATA_A720_3699561 65*050c4a38SGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A720_MIDR): 66*050c4a38SGovindraj Raja if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES) 67*050c4a38SGovindraj Raja return true;; 68*050c4a38SGovindraj Raja break; 69*050c4a38SGovindraj Raja #endif /* ERRATA_A720_3699561 */ 70*050c4a38SGovindraj Raja 717455cd17SGovindraj Raja default: 727455cd17SGovindraj Raja break; 737455cd17SGovindraj Raja } 747455cd17SGovindraj Raja 757455cd17SGovindraj Raja return false; 767455cd17SGovindraj Raja } 77