build(psci): move `runtime_errata.S` to PSCI
Move the runtime errata source file into the PSCI library, as PSCI is
the only component directly dependent on it, and it doesn't require
internal access to the CPUs library.
Change-Id: I92826714d49b1b0131f62c158543b4c167ab9aa8
Signed-off-by: Chris Kay <chris.kay@arm.com>
diff --git a/lib/psci/aarch64/runtime_errata.S b/lib/psci/aarch64/runtime_errata.S
new file mode 100644
index 0000000..8d46691
--- /dev/null
+++ b/lib/psci/aarch64/runtime_errata.S
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2023, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <asm_macros.S>
+#include <cortex_a510.h>
+#include <cpu_macros.S>
+
+/*
+ * void apply_cpu_pwr_dwn_errata(void);
+ *
+ * This function applies various CPU errata during power down.
+ */
+ .globl apply_cpu_pwr_dwn_errata
+func apply_cpu_pwr_dwn_errata
+ mov x19, x30
+ bl cpu_get_rev_var
+ mov x18, x0
+
+#if ERRATA_A510_2684597
+ bl errata_cortex_a510_2684597_wa
+#endif
+
+ ret x19
+endfunc apply_cpu_pwr_dwn_errata
diff --git a/lib/psci/psci_lib.mk b/lib/psci/psci_lib.mk
index 6864202..c71580f 100644
--- a/lib/psci/psci_lib.mk
+++ b/lib/psci/psci_lib.mk
@@ -22,7 +22,7 @@
ifeq (${ARCH}, aarch64)
PSCI_LIB_SOURCES += lib/el3_runtime/aarch64/context.S \
- lib/cpus/aarch64/runtime_errata.S
+ lib/psci/aarch64/runtime_errata.S
endif
ifeq (${USE_COHERENT_MEM}, 1)