Implement Cortex-Ares 1043202 erratum workaround
The workaround uses the instruction patching feature of the Ares cpu.
Change-Id: I868fce0dc0e8e41853dcce311f01ee3867aabb59
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index 434c13e..456e3e5 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
@@ -119,6 +119,10 @@
# only to revision <= r0p3 of the Cortex A72 cpu.
ERRATA_A72_859971 ?=0
+# Flag to apply T32 CLREX workaround during reset. This erratum applies
+# only to r0p0 and r1p0 of the Ares cpu.
+ERRATA_ARES_1043202 ?=1
+
# Process ERRATA_A53_826319 flag
$(eval $(call assert_boolean,ERRATA_A53_826319))
$(eval $(call add_define,ERRATA_A53_826319))
@@ -179,6 +183,10 @@
$(eval $(call assert_boolean,ERRATA_A72_859971))
$(eval $(call add_define,ERRATA_A72_859971))
+# Process ERRATA_ARES_1043202 flag
+$(eval $(call assert_boolean,ERRATA_ARES_1043202))
+$(eval $(call add_define,ERRATA_ARES_1043202))
+
# Errata build flags
ifneq (${ERRATA_A53_843419},0)
TF_LDFLAGS_aarch64 += --fix-cortex-a53-843419