lib/cpus/cpu-ops.mk

#
# Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
# Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#

# Cortex A57 specific optimisation to skip L1 cache flush when
# cluster is powered down.
SKIP_A57_L1_FLUSH_PWR_DWN	?=0

# Flag to disable the cache non-temporal hint.
# It is enabled by default.
A53_DISABLE_NON_TEMPORAL_HINT	?=1

# Flag to disable the cache non-temporal hint.
# It is enabled by default.
A57_DISABLE_NON_TEMPORAL_HINT	?=1

# Flag to enable higher performance non-cacheable load forwarding.
# It is disabled by default.
A57_ENABLE_NONCACHEABLE_LOAD_FWD	?= 0

WORKAROUND_CVE_2017_5715	?=1
WORKAROUND_CVE_2018_3639	?=1
DYNAMIC_WORKAROUND_CVE_2018_3639	?=0

# Flag to indicate internal or external Last level cache
# By default internal
NEOVERSE_N1_EXTERNAL_LLC	?=0

# Process A57_ENABLE_NONCACHEABLE_LOAD_FWD flag
$(eval $(call assert_boolean,A57_ENABLE_NONCACHEABLE_LOAD_FWD))
$(eval $(call add_define,A57_ENABLE_NONCACHEABLE_LOAD_FWD))

# Process SKIP_A57_L1_FLUSH_PWR_DWN flag
$(eval $(call assert_boolean,SKIP_A57_L1_FLUSH_PWR_DWN))
$(eval $(call add_define,SKIP_A57_L1_FLUSH_PWR_DWN))

# Process A53_DISABLE_NON_TEMPORAL_HINT flag
$(eval $(call assert_boolean,A53_DISABLE_NON_TEMPORAL_HINT))
$(eval $(call add_define,A53_DISABLE_NON_TEMPORAL_HINT))

# Process A57_DISABLE_NON_TEMPORAL_HINT flag
$(eval $(call assert_boolean,A57_DISABLE_NON_TEMPORAL_HINT))
$(eval $(call add_define,A57_DISABLE_NON_TEMPORAL_HINT))

# Process WORKAROUND_CVE_2017_5715 flag
$(eval $(call assert_boolean,WORKAROUND_CVE_2017_5715))
$(eval $(call add_define,WORKAROUND_CVE_2017_5715))

# Process WORKAROUND_CVE_2018_3639 flag
$(eval $(call assert_boolean,WORKAROUND_CVE_2018_3639))
$(eval $(call add_define,WORKAROUND_CVE_2018_3639))

$(eval $(call assert_boolean,DYNAMIC_WORKAROUND_CVE_2018_3639))
$(eval $(call add_define,DYNAMIC_WORKAROUND_CVE_2018_3639))

$(eval $(call assert_boolean,NEOVERSE_N1_EXTERNAL_LLC))
$(eval $(call add_define,NEOVERSE_N1_EXTERNAL_LLC))

ifneq (${DYNAMIC_WORKAROUND_CVE_2018_3639},0)
    ifeq (${WORKAROUND_CVE_2018_3639},0)
        $(error "Error: WORKAROUND_CVE_2018_3639 must be 1 if DYNAMIC_WORKAROUND_CVE_2018_3639 is 1")
    endif
endif

# CPU Errata Build flags.
# These should be enabled by the platform if the erratum workaround needs to be
# applied.

# Flag to apply erratum 794073 workaround when disabling mmu.
ERRATA_A9_794073	?=0

# Flag to apply erratum 816470 workaround during power down. This erratum
# applies only to revision >= r3p0 of the Cortex A15 cpu.
ERRATA_A15_816470	?=0

# Flag to apply erratum 827671 workaround during reset. This erratum applies
# only to revision >= r3p0 of the Cortex A15 cpu.
ERRATA_A15_827671	?=0

# Flag to apply erratum 852421 workaround during reset. This erratum applies
# only to revision <= r1p2 of the Cortex A17 cpu.
ERRATA_A17_852421	?=0

# Flag to apply erratum 852423 workaround during reset. This erratum applies
# only to revision <= r1p2 of the Cortex A17 cpu.
ERRATA_A17_852423	?=0

# Flag to apply erratum 855472 workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A35 cpu.
ERRATA_A35_855472	?=0

# Flag to apply erratum 819472 workaround during reset. This erratum applies
# only to revision <= r0p1 of the Cortex A53 cpu.
ERRATA_A53_819472	?=0

# Flag to apply erratum 824069 workaround during reset. This erratum applies
# only to revision <= r0p2 of the Cortex A53 cpu.
ERRATA_A53_824069	?=0

# Flag to apply erratum 826319 workaround during reset. This erratum applies
# only to revision <= r0p2 of the Cortex A53 cpu.
ERRATA_A53_826319	?=0

# Flag to apply erratum 827319 workaround during reset. This erratum applies
# only to revision <= r0p2 of the Cortex A53 cpu.
ERRATA_A53_827319	?=0

# Flag to apply erratum 835769 workaround at compile and link time.  This
# erratum applies to revision <= r0p4 of the Cortex A53 cpu. Enabling this
# workaround can lead the linker to create "*.stub" sections.
ERRATA_A53_835769	?=0

# Flag to apply erratum 836870 workaround during reset. This erratum applies
# only to revision <= r0p3 of the Cortex A53 cpu. From r0p4 and onwards, this
# erratum workaround is enabled by default in hardware.
ERRATA_A53_836870	?=0

# Flag to apply erratum 843419 workaround at link time.
# This erratum applies to revision <= r0p4 of the Cortex A53 cpu. Enabling this
# workaround could lead the linker to emit "*.stub" sections which are 4kB
# aligned.
ERRATA_A53_843419	?=0

# Flag to apply errata 855873 during reset. This errata applies to all
# revisions of the Cortex A53 CPU, but this firmware workaround only works
# for revisions r0p3 and higher. Earlier revisions are taken care
# of by the rich OS.
ERRATA_A53_855873	?=0

# Flag to apply erratum 768277 workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A55 cpu.
ERRATA_A55_768277	?=0

# Flag to apply erratum 778703 workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A55 cpu.
ERRATA_A55_778703	?=0

# Flag to apply erratum 798797 workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A55 cpu.
ERRATA_A55_798797	?=0

# Flag to apply erratum 846532 workaround during reset. This erratum applies
# only to revision <= r0p1 of the Cortex A55 cpu.
ERRATA_A55_846532	?=0

# Flag to apply erratum 903758 workaround during reset. This erratum applies
# only to revision <= r0p1 of the Cortex A55 cpu.
ERRATA_A55_903758	?=0

# Flag to apply erratum 1221012 workaround during reset. This erratum applies
# only to revision <= r1p0 of the Cortex A55 cpu.
ERRATA_A55_1221012	?=0

# Flag to apply erratum 806969 workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A57 cpu.
ERRATA_A57_806969	?=0

# Flag to apply erratum 813419 workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A57 cpu.
ERRATA_A57_813419	?=0

# Flag to apply erratum 813420  workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A57 cpu.
ERRATA_A57_813420	?=0

# Flag to apply erratum 814670  workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A57 cpu.
ERRATA_A57_814670	?=0

# Flag to apply erratum 817169 workaround during power down. This erratum
# applies only to revision <= r0p1 of the Cortex A57 cpu.
ERRATA_A57_817169	?=0

# Flag to apply erratum 826974 workaround during reset. This erratum applies
# only to revision <= r1p1 of the Cortex A57 cpu.
ERRATA_A57_826974	?=0

# Flag to apply erratum 826977 workaround during reset. This erratum applies
# only to revision <= r1p1 of the Cortex A57 cpu.
ERRATA_A57_826977	?=0

# Flag to apply erratum 828024 workaround during reset. This erratum applies
# only to revision <= r1p1 of the Cortex A57 cpu.
ERRATA_A57_828024	?=0

# Flag to apply erratum 829520 workaround during reset. This erratum applies
# only to revision <= r1p2 of the Cortex A57 cpu.
ERRATA_A57_829520	?=0

# Flag to apply erratum 833471 workaround during reset. This erratum applies
# only to revision <= r1p2 of the Cortex A57 cpu.
ERRATA_A57_833471	?=0

# Flag to apply erratum 855972 workaround during reset. This erratum applies
# only to revision <= r1p3 of the Cortex A57 cpu.
ERRATA_A57_859972	?=0

# Flag to apply erratum 855971 workaround during reset. This erratum applies
# only to revision <= r0p3 of the Cortex A72 cpu.
ERRATA_A72_859971	?=0

# Flag to apply erratum 852427 workaround during reset. This erratum applies
# only to revision r0p0 of the Cortex A73 cpu.
ERRATA_A73_852427	?=0

# Flag to apply erratum 855423 workaround during reset. This erratum applies
# only to revision <= r0p1 of the Cortex A73 cpu.
ERRATA_A73_855423	?=0

# Flag to apply erratum 764081 workaround during reset. This erratum applies
# only to revision <= r0p0 of the Cortex A75 cpu.
ERRATA_A75_764081	?=0

# Flag to apply erratum 790748 workaround during reset. This erratum applies
# only to revision <= r0p0 of the Cortex A75 cpu.
ERRATA_A75_790748	?=0

# Flag to apply erratum 1073348 workaround during reset. This erratum applies
# only to revision <= r1p0 of the Cortex A76 cpu.
ERRATA_A76_1073348	?=0

# Flag to apply erratum 1130799 workaround during reset. This erratum applies
# only to revision <= r2p0 of the Cortex A76 cpu.
ERRATA_A76_1130799	?=0

# Flag to apply erratum 1220197 workaround during reset. This erratum applies
# only to revision <= r2p0 of the Cortex A76 cpu.
ERRATA_A76_1220197	?=0

# Flag to apply erratum 1257314 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Cortex A76 cpu.
ERRATA_A76_1257314	?=0

# Flag to apply erratum 1262606 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Cortex A76 cpu.
ERRATA_A76_1262606	?=0

# Flag to apply erratum 1262888 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Cortex A76 cpu.
ERRATA_A76_1262888	?=0

# Flag to apply erratum 1275112 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Cortex A76 cpu.
ERRATA_A76_1275112	?=0

# Flag to apply erratum 1286807 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Cortex A76 cpu.
ERRATA_A76_1286807	?=0

# Flag to apply erratum 1791580 workaround during reset. This erratum applies
# only to revision <= r4p0 of the Cortex A76 cpu.
ERRATA_A76_1791580	?=0

# Flag to apply erratum 1800710 workaround during reset. This erratum applies
# only to revision <= r4p0 of the Cortex A76 cpu.
ERRATA_A76_1800710	?=0

# Flag to apply erratum 1688305 workaround during reset. This erratum applies
# to revisions r0p0 - r1p0 of the A78 cpu.
ERRATA_A78_1688305	?=0

# Flag to apply T32 CLREX workaround during reset. This erratum applies
# only to r0p0 and r1p0 of the Neoverse N1 cpu.
ERRATA_N1_1043202	?=0

# Flag to apply erratum 1073348 workaround during reset. This erratum applies
# only to revision r0p0 and r1p0 of the Neoverse N1 cpu.
ERRATA_N1_1073348	?=0

# Flag to apply erratum 1130799 workaround during reset. This erratum applies
# only to revision <= r2p0 of the Neoverse N1 cpu.
ERRATA_N1_1130799	?=0

# Flag to apply erratum 1165347 workaround during reset. This erratum applies
# only to revision <= r2p0 of the Neoverse N1 cpu.
ERRATA_N1_1165347	?=0

# Flag to apply erratum 1207823 workaround during reset. This erratum applies
# only to revision <= r2p0 of the Neoverse N1 cpu.
ERRATA_N1_1207823	?=0

# Flag to apply erratum 1220197 workaround during reset. This erratum applies
# only to revision <= r2p0 of the Neoverse N1 cpu.
ERRATA_N1_1220197	?=0

# Flag to apply erratum 1257314 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Neoverse N1 cpu.
ERRATA_N1_1257314	?=0

# Flag to apply erratum 1262606 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Neoverse N1 cpu.
ERRATA_N1_1262606	?=0

# Flag to apply erratum 1262888 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Neoverse N1 cpu.
ERRATA_N1_1262888	?=0

# Flag to apply erratum 1275112 workaround during reset. This erratum applies
# only to revision <= r3p0 of the Neoverse N1 cpu.
ERRATA_N1_1275112	?=0

# Flag to apply erratum 1315703 workaround during reset. This erratum applies
# to revisions before r3p1 of the Neoverse N1 cpu.
ERRATA_N1_1315703	?=0

# Flag to apply erratum 1542419 workaround during reset. This erratum applies
# to revisions r3p0 - r4p0 of the Neoverse N1 cpu.
ERRATA_N1_1542419	?=0

# Flag to apply DSU erratum 798953. This erratum applies to DSUs revision r0p0.
# Applying the workaround results in higher DSU power consumption on idle.
ERRATA_DSU_798953	?=0

# Flag to apply DSU erratum 936184. This erratum applies to DSUs containing
# the ACP interface and revision < r2p0. Applying the workaround results in
# higher DSU power consumption on idle.
ERRATA_DSU_936184	?=0

# Process ERRATA_A9_794073 flag
$(eval $(call assert_boolean,ERRATA_A9_794073))
$(eval $(call add_define,ERRATA_A9_794073))

# Process ERRATA_A15_816470 flag
$(eval $(call assert_boolean,ERRATA_A15_816470))
$(eval $(call add_define,ERRATA_A15_816470))

# Process ERRATA_A15_827671 flag
$(eval $(call assert_boolean,ERRATA_A15_827671))
$(eval $(call add_define,ERRATA_A15_827671))

# Process ERRATA_A17_852421 flag
$(eval $(call assert_boolean,ERRATA_A17_852421))
$(eval $(call add_define,ERRATA_A17_852421))

# Process ERRATA_A17_852423 flag
$(eval $(call assert_boolean,ERRATA_A17_852423))
$(eval $(call add_define,ERRATA_A17_852423))

# Process ERRATA_A35_855472 flag
$(eval $(call assert_boolean,ERRATA_A35_855472))
$(eval $(call add_define,ERRATA_A35_855472))

# Process ERRATA_A53_819472 flag
$(eval $(call assert_boolean,ERRATA_A53_819472))
$(eval $(call add_define,ERRATA_A53_819472))

# Process ERRATA_A53_824069 flag
$(eval $(call assert_boolean,ERRATA_A53_824069))
$(eval $(call add_define,ERRATA_A53_824069))

# Process ERRATA_A53_826319 flag
$(eval $(call assert_boolean,ERRATA_A53_826319))
$(eval $(call add_define,ERRATA_A53_826319))

# Process ERRATA_A53_827319 flag
$(eval $(call assert_boolean,ERRATA_A53_827319))
$(eval $(call add_define,ERRATA_A53_827319))

# Process ERRATA_A53_835769 flag
$(eval $(call assert_boolean,ERRATA_A53_835769))
$(eval $(call add_define,ERRATA_A53_835769))

# Process ERRATA_A53_836870 flag
$(eval $(call assert_boolean,ERRATA_A53_836870))
$(eval $(call add_define,ERRATA_A53_836870))

# Process ERRATA_A53_843419 flag
$(eval $(call assert_boolean,ERRATA_A53_843419))
$(eval $(call add_define,ERRATA_A53_843419))

# Process ERRATA_A53_855873 flag
$(eval $(call assert_boolean,ERRATA_A53_855873))
$(eval $(call add_define,ERRATA_A53_855873))

# Process ERRATA_A55_768277 flag
$(eval $(call assert_boolean,ERRATA_A55_768277))
$(eval $(call add_define,ERRATA_A55_768277))

# Process ERRATA_A55_778703 flag
$(eval $(call assert_boolean,ERRATA_A55_778703))
$(eval $(call add_define,ERRATA_A55_778703))

# Process ERRATA_A55_798797 flag
$(eval $(call assert_boolean,ERRATA_A55_798797))
$(eval $(call add_define,ERRATA_A55_798797))

# Process ERRATA_A55_846532 flag
$(eval $(call assert_boolean,ERRATA_A55_846532))
$(eval $(call add_define,ERRATA_A55_846532))

# Process ERRATA_A55_903758 flag
$(eval $(call assert_boolean,ERRATA_A55_903758))
$(eval $(call add_define,ERRATA_A55_903758))

# Process ERRATA_A55_1221012 flag
$(eval $(call assert_boolean,ERRATA_A55_1221012))
$(eval $(call add_define,ERRATA_A55_1221012))

# Process ERRATA_A57_806969 flag
$(eval $(call assert_boolean,ERRATA_A57_806969))
$(eval $(call add_define,ERRATA_A57_806969))

# Process ERRATA_A57_813419 flag
$(eval $(call assert_boolean,ERRATA_A57_813419))
$(eval $(call add_define,ERRATA_A57_813419))

# Process ERRATA_A57_813420 flag
$(eval $(call assert_boolean,ERRATA_A57_813420))
$(eval $(call add_define,ERRATA_A57_813420))

# Process ERRATA_A57_814670 flag
$(eval $(call assert_boolean,ERRATA_A57_814670))
$(eval $(call add_define,ERRATA_A57_814670))

# Process ERRATA_A57_817169 flag
$(eval $(call assert_boolean,ERRATA_A57_817169))
$(eval $(call add_define,ERRATA_A57_817169))

# Process ERRATA_A57_826974 flag
$(eval $(call assert_boolean,ERRATA_A57_826974))
$(eval $(call add_define,ERRATA_A57_826974))

# Process ERRATA_A57_826977 flag
$(eval $(call assert_boolean,ERRATA_A57_826977))
$(eval $(call add_define,ERRATA_A57_826977))

# Process ERRATA_A57_828024 flag
$(eval $(call assert_boolean,ERRATA_A57_828024))
$(eval $(call add_define,ERRATA_A57_828024))

# Process ERRATA_A57_829520 flag
$(eval $(call assert_boolean,ERRATA_A57_829520))
$(eval $(call add_define,ERRATA_A57_829520))

# Process ERRATA_A57_833471 flag
$(eval $(call assert_boolean,ERRATA_A57_833471))
$(eval $(call add_define,ERRATA_A57_833471))

# Process ERRATA_A57_859972 flag
$(eval $(call assert_boolean,ERRATA_A57_859972))
$(eval $(call add_define,ERRATA_A57_859972))

# Process ERRATA_A72_859971 flag
$(eval $(call assert_boolean,ERRATA_A72_859971))
$(eval $(call add_define,ERRATA_A72_859971))

# Process ERRATA_A73_852427 flag
$(eval $(call assert_boolean,ERRATA_A73_852427))
$(eval $(call add_define,ERRATA_A73_852427))

# Process ERRATA_A73_855423 flag
$(eval $(call assert_boolean,ERRATA_A73_855423))
$(eval $(call add_define,ERRATA_A73_855423))

# Process ERRATA_A75_764081 flag
$(eval $(call assert_boolean,ERRATA_A75_764081))
$(eval $(call add_define,ERRATA_A75_764081))

# Process ERRATA_A75_790748 flag
$(eval $(call assert_boolean,ERRATA_A75_790748))
$(eval $(call add_define,ERRATA_A75_790748))

# Process ERRATA_A76_1073348 flag
$(eval $(call assert_boolean,ERRATA_A76_1073348))
$(eval $(call add_define,ERRATA_A76_1073348))

# Process ERRATA_A76_1130799 flag
$(eval $(call assert_boolean,ERRATA_A76_1130799))
$(eval $(call add_define,ERRATA_A76_1130799))

# Process ERRATA_A76_1220197 flag
$(eval $(call assert_boolean,ERRATA_A76_1220197))
$(eval $(call add_define,ERRATA_A76_1220197))

# Process ERRATA_A76_1257314 flag
$(eval $(call assert_boolean,ERRATA_A76_1257314))
$(eval $(call add_define,ERRATA_A76_1257314))

# Process ERRATA_A76_1262606 flag
$(eval $(call assert_boolean,ERRATA_A76_1262606))
$(eval $(call add_define,ERRATA_A76_1262606))

# Process ERRATA_A76_1262888 flag
$(eval $(call assert_boolean,ERRATA_A76_1262888))
$(eval $(call add_define,ERRATA_A76_1262888))

# Process ERRATA_A76_1275112 flag
$(eval $(call assert_boolean,ERRATA_A76_1275112))
$(eval $(call add_define,ERRATA_A76_1275112))

# Process ERRATA_A76_1286807 flag
$(eval $(call assert_boolean,ERRATA_A76_1286807))
$(eval $(call add_define,ERRATA_A76_1286807))

# Process ERRATA_A76_1791580 flag
$(eval $(call assert_boolean,ERRATA_A76_1791580))
$(eval $(call add_define,ERRATA_A76_1791580))

# Process ERRATA_A76_1800710 flag
$(eval $(call assert_boolean,ERRATA_A76_1800710))
$(eval $(call add_define,ERRATA_A76_1800710))

# Process ERRATA_A78_1688305 flag
$(eval $(call assert_boolean,ERRATA_A78_1688305))
$(eval $(call add_define,ERRATA_A78_1688305))

# Process ERRATA_N1_1043202 flag
$(eval $(call assert_boolean,ERRATA_N1_1043202))
$(eval $(call add_define,ERRATA_N1_1043202))

# Process ERRATA_N1_1073348 flag
$(eval $(call assert_boolean,ERRATA_N1_1073348))
$(eval $(call add_define,ERRATA_N1_1073348))

# Process ERRATA_N1_1130799 flag
$(eval $(call assert_boolean,ERRATA_N1_1130799))
$(eval $(call add_define,ERRATA_N1_1130799))

# Process ERRATA_N1_1165347 flag
$(eval $(call assert_boolean,ERRATA_N1_1165347))
$(eval $(call add_define,ERRATA_N1_1165347))

# Process ERRATA_N1_1207823 flag
$(eval $(call assert_boolean,ERRATA_N1_1207823))
$(eval $(call add_define,ERRATA_N1_1207823))

# Process ERRATA_N1_1220197 flag
$(eval $(call assert_boolean,ERRATA_N1_1220197))
$(eval $(call add_define,ERRATA_N1_1220197))

# Process ERRATA_N1_1257314 flag
$(eval $(call assert_boolean,ERRATA_N1_1257314))
$(eval $(call add_define,ERRATA_N1_1257314))

# Process ERRATA_N1_1262606 flag
$(eval $(call assert_boolean,ERRATA_N1_1262606))
$(eval $(call add_define,ERRATA_N1_1262606))

# Process ERRATA_N1_1262888 flag
$(eval $(call assert_boolean,ERRATA_N1_1262888))
$(eval $(call add_define,ERRATA_N1_1262888))

# Process ERRATA_N1_1275112 flag
$(eval $(call assert_boolean,ERRATA_N1_1275112))
$(eval $(call add_define,ERRATA_N1_1275112))

# Process ERRATA_N1_1315703 flag
$(eval $(call assert_boolean,ERRATA_N1_1315703))
$(eval $(call add_define,ERRATA_N1_1315703))

# Process ERRATA_N1_1542419 flag
$(eval $(call assert_boolean,ERRATA_N1_1542419))
$(eval $(call add_define,ERRATA_N1_1542419))

# Process ERRATA_DSU_798953 flag
$(eval $(call assert_boolean,ERRATA_DSU_798953))
$(eval $(call add_define,ERRATA_DSU_798953))

# Process ERRATA_DSU_936184 flag
$(eval $(call assert_boolean,ERRATA_DSU_936184))
$(eval $(call add_define,ERRATA_DSU_936184))

# Errata build flags
ifneq (${ERRATA_A53_843419},0)
TF_LDFLAGS_aarch64	+= --fix-cortex-a53-843419
endif

ifneq (${ERRATA_A53_835769},0)
TF_CFLAGS_aarch64	+= -mfix-cortex-a53-835769
TF_LDFLAGS_aarch64	+= --fix-cortex-a53-835769
endif