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-rw-r--r--Documentation/EDID/Makefile15
1 files changed, 13 insertions, 2 deletions
diff --git a/Documentation/EDID/Makefile b/Documentation/EDID/Makefile
index 17763ca3f12b..85a927dfab02 100644
--- a/Documentation/EDID/Makefile
+++ b/Documentation/EDID/Makefile
@@ -15,10 +15,21 @@ clean:
%.o: %.S
@cc -c $^
-%.bin: %.o
+%.bin.nocrc: %.o
@objcopy -Obinary $^ $@
-%.bin.ihex: %.o
+%.crc: %.bin.nocrc
+ @list=$$(for i in `seq 1 127`; do head -c$$i $^ | tail -c1 \
+ | hexdump -v -e '/1 "%02X+"'; done); \
+ echo "ibase=16;100-($${list%?})%100" | bc >$@
+
+%.p: %.crc %.S
+ @cc -c -DCRC="$$(cat $*.crc)" -o $@ $*.S
+
+%.bin: %.p
+ @objcopy -Obinary $^ $@
+
+%.bin.ihex: %.p
@objcopy -Oihex $^ $@
@dos2unix $@ 2>/dev/null