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-rw-r--r--src/southbridge/amd/pi/hudson/Makefile.inc2
-rw-r--r--src/southbridge/intel/common/firmware/Makefile.inc2
2 files changed, 2 insertions, 2 deletions
diff --git a/src/southbridge/amd/pi/hudson/Makefile.inc b/src/southbridge/amd/pi/hudson/Makefile.inc
index 215a5a12bd..5eac024aa8 100644
--- a/src/southbridge/amd/pi/hudson/Makefile.inc
+++ b/src/southbridge/amd/pi/hudson/Makefile.inc
@@ -162,7 +162,7 @@ INTERMEDIATE+=add_amdfw
add_amdfw: $(obj)/coreboot.pre $(obj)/amdfw.rom
printf " DD Adding AMD Firmware\n"
- dd if=$(obj)/amdfw.rom \
+ flock $< dd if=$(obj)/amdfw.rom \
of=$(obj)/coreboot.pre conv=notrunc bs=1 seek=131072 >/dev/null 2>&1
else # ifeq ($(CONFIG_AMDFW_OUTSIDE_CBFS),y)
diff --git a/src/southbridge/intel/common/firmware/Makefile.inc b/src/southbridge/intel/common/firmware/Makefile.inc
index 516cd4d453..588c6633c0 100644
--- a/src/southbridge/intel/common/firmware/Makefile.inc
+++ b/src/southbridge/intel/common/firmware/Makefile.inc
@@ -35,7 +35,7 @@ add_intel_firmware: $(call strip_quotes,$(CONFIG_EC_BIN_PATH))
endif
add_intel_firmware: $(obj)/coreboot.pre $(IFDTOOL)
printf " DD Adding Intel Firmware Descriptor\n"
- dd if=$(IFD_BIN_PATH) \
+ flock $< dd if=$(IFD_BIN_PATH) \
of=$(obj)/coreboot.pre conv=notrunc >/dev/null 2>&1
ifeq ($(CONFIG_VALIDATE_INTEL_DESCRIPTOR),y)
$(objutil)/ifdtool/ifdtool \