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> 15050c4a38SGovindraj Raja #include <cortex_a720.h> 16af5ae9a7SGovindraj Raja #include <cortex_a720_ae.h> 17*d732300bSGovindraj Raja #include <cortex_a725.h> 18721249b0SArvind Ram Prakash #include <cortex_x4.h> 19721249b0SArvind Ram Prakash #include <lib/cpus/cpu_ops.h> 20721249b0SArvind Ram Prakash #include <lib/cpus/errata.h> 21721249b0SArvind Ram Prakash 22721249b0SArvind Ram Prakash #if ERRATA_A520_2938996 || ERRATA_X4_2726228 23721249b0SArvind Ram Prakash unsigned int check_if_affected_core(void) 24721249b0SArvind Ram Prakash { 25721249b0SArvind Ram Prakash uint32_t midr_val = read_midr(); 26721249b0SArvind Ram Prakash long rev_var = cpu_get_rev_var(); 27721249b0SArvind Ram Prakash 28721249b0SArvind Ram Prakash if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) { 29721249b0SArvind Ram Prakash return check_erratum_cortex_a520_2938996(rev_var); 30721249b0SArvind Ram Prakash } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) { 31721249b0SArvind Ram Prakash return check_erratum_cortex_x4_2726228(rev_var); 32721249b0SArvind Ram Prakash } 33721249b0SArvind Ram Prakash 34721249b0SArvind Ram Prakash return ERRATA_NOT_APPLIES; 35721249b0SArvind Ram Prakash } 36721249b0SArvind Ram Prakash #endif 377f152ea6SSona Mathew 387f152ea6SSona Mathew #if ERRATA_A75_764081 397f152ea6SSona Mathew bool errata_a75_764081_applies(void) 407f152ea6SSona Mathew { 417f152ea6SSona Mathew long rev_var = cpu_get_rev_var(); 427f152ea6SSona Mathew if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) { 437f152ea6SSona Mathew return true; 447f152ea6SSona Mathew } 457f152ea6SSona Mathew return false; 467f152ea6SSona Mathew } 477f152ea6SSona Mathew #endif /* ERRATA_A75_764081 */ 487455cd17SGovindraj Raja 497455cd17SGovindraj Raja bool errata_ich_vmcr_el2_applies(void) 507455cd17SGovindraj Raja { 517455cd17SGovindraj Raja switch (EXTRACT_PARTNUM(read_midr())) { 52463b5b4aSGovindraj Raja #if ERRATA_A710_3701772 53463b5b4aSGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A710_MIDR): 54463b5b4aSGovindraj Raja if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES) 55463b5b4aSGovindraj Raja return true; 56463b5b4aSGovindraj Raja break; 57463b5b4aSGovindraj Raja #endif /* ERRATA_A710_3701772 */ 58463b5b4aSGovindraj Raja 5926437afdSGovindraj Raja #if ERRATA_A715_3699560 6026437afdSGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A715_MIDR): 6126437afdSGovindraj Raja if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES) 6226437afdSGovindraj Raja return true; 6326437afdSGovindraj Raja break; 6426437afdSGovindraj Raja #endif /* ERRATA_A715_3699560 */ 6526437afdSGovindraj Raja 66050c4a38SGovindraj Raja #if ERRATA_A720_3699561 67050c4a38SGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A720_MIDR): 68050c4a38SGovindraj Raja if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES) 69050c4a38SGovindraj Raja return true;; 70050c4a38SGovindraj Raja break; 71050c4a38SGovindraj Raja #endif /* ERRATA_A720_3699561 */ 72050c4a38SGovindraj Raja 73af5ae9a7SGovindraj Raja #if ERRATA_A720_AE_3699562 74af5ae9a7SGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A720_AE_MIDR): 75af5ae9a7SGovindraj Raja if (check_erratum_cortex_a720_ae_3699562(cpu_get_rev_var()) == ERRATA_APPLIES) 76af5ae9a7SGovindraj Raja return true; 77af5ae9a7SGovindraj Raja break; 78af5ae9a7SGovindraj Raja #endif /* ERRATA_A720_AE_3699562 */ 79af5ae9a7SGovindraj Raja 80*d732300bSGovindraj Raja #if ERRATA_A725_3699564 81*d732300bSGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A725_MIDR): 82*d732300bSGovindraj Raja if (check_erratum_cortex_a725_3699564(cpu_get_rev_var()) == ERRATA_APPLIES) 83*d732300bSGovindraj Raja return true; 84*d732300bSGovindraj Raja break; 85*d732300bSGovindraj Raja #endif /* ERRATA_A725_3699564 */ 867455cd17SGovindraj Raja default: 877455cd17SGovindraj Raja break; 887455cd17SGovindraj Raja } 897455cd17SGovindraj Raja 907455cd17SGovindraj Raja return false; 917455cd17SGovindraj Raja } 92