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-rw-r--r--payloads/libpayload/arch/arm64/Kconfig8
-rwxr-xr-xpayloads/libpayload/bin/lpgcc6
2 files changed, 14 insertions, 0 deletions
diff --git a/payloads/libpayload/arch/arm64/Kconfig b/payloads/libpayload/arch/arm64/Kconfig
index d2f8e5675a..a28a1f27d2 100644
--- a/payloads/libpayload/arch/arm64/Kconfig
+++ b/payloads/libpayload/arch/arm64/Kconfig
@@ -33,6 +33,14 @@ config ARCH_SPECIFIC_OPTIONS # dummy
def_bool y
select LITTLE_ENDIAN
+config ARM64_A53_ERRATUM_843419
+ bool "Enable Cortex-A53 erratum 843419 linker workaround"
+ default n
+ help
+ Some early Cortex-A53 revisions had a hardware bug that results in
+ incorrect address calculations in rare cases. This option enables a
+ linker workaround to avoid those cases if your toolchain supports it.
+
config DMA_LIM_EXCL
hex "DMA address limit(exclusive) in MiB units"
default 0x1000
diff --git a/payloads/libpayload/bin/lpgcc b/payloads/libpayload/bin/lpgcc
index 17d8edaf03..8d0260b895 100755
--- a/payloads/libpayload/bin/lpgcc
+++ b/payloads/libpayload/bin/lpgcc
@@ -181,6 +181,12 @@ else
echo "Could not find head.o"
exit 1
fi
+
+ if grep -q ARM64_A53_ERRATUM_843419=y $BASE/../libpayload.config &&
+ grep -q fix-cortex-a53-843419 $BASE/../libpayload.xcompile; then
+ _LDFLAGS+=" -Wl,--fix-cortex-a53-843419"
+ fi
+
if [ $DEBUGME -eq 1 ]; then
echo "$DEFAULT_CC $_LDFLAGS $HEAD_O $CMDLINE $_CFLAGS -lpayload $_LIBGCC"
fi