refactor(cpus): convert the Cortex-A65 to use the errata framework
Result was verified by manually stepping through the reset function with
a debugger.
Change-Id: I91cd6111ccf95d6b7ee2364ac2126cb98ee4bb15
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
diff --git a/lib/cpus/aarch64/cortex_a65.S b/lib/cpus/aarch64/cortex_a65.S
index 3023ecb..b3c1726 100644
--- a/lib/cpus/aarch64/cortex_a65.S
+++ b/lib/cpus/aarch64/cortex_a65.S
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2019-2024, Arm Limited. All rights reserved.
+ * Copyright (c) 2019-2025, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -22,20 +22,18 @@
#error "Cortex-A65 supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0"
#endif
-/* -------------------------------------------------
- * The CPU Ops reset function for Cortex-A65.
- * Shall clobber: x0-x19
- * -------------------------------------------------
+/*
+ * ERRATA_DSU_936184:
+ * The errata is defined in dsu_helpers.S and applies to neoverse_e1.
+ * Henceforth creating symbolic names to the already existing errata
+ * workaround functions to get them registered under the Errata Framework.
*/
-func cortex_a65_reset_func
- mov x19, x30
+.equ check_erratum_neoverse_e1_936184, check_errata_dsu_936184
+.equ erratum_neoverse_e1_936184_wa, errata_dsu_936184_wa
+add_erratum_entry neoverse_e1, ERRATUM(936184), ERRATA_DSU_936184, APPLY_AT_RESET
-#if ERRATA_DSU_936184
- bl errata_dsu_936184_wa
-#endif
-
- ret x19
-endfunc cortex_a65_reset_func
+cpu_reset_func_start cortex_a65
+cpu_reset_func_end cortex_a65
func cortex_a65_cpu_pwr_dwn
mrs x0, CORTEX_A65_CPUPWRCTLR_EL1
@@ -45,7 +43,6 @@
ret
endfunc cortex_a65_cpu_pwr_dwn
-
.section .rodata.cortex_a65_regs, "aS"
cortex_a65_regs: /* The ascii list of register names to be reported */
.asciz "cpuectlr_el1", ""