[S] Change in coreboot[main]: soc/intel/cmn/cse: Simplify logic to get CSE RW version

[Kapil Porwal (Code Review)]

Kapil Porwal has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/81051?usp=email )

Change subject: soc/intel/cmn/cse: Simplify logic to get CSE RW version
......................................................................

soc/intel/cmn/cse: Simplify logic to get CSE RW version

BUG=none
TEST=Build and boot to google/screebo
TEST=CSE RW version remains same with and without this change.

```
$ cbfstool image-screebo.bin extract -r FW_MAIN_A -n me_rw.version -f me_rw.version
Found file me_rw.version at 0x81b40, type raw, compressed 12, size 12

$ hexdump -C me_rw.version
00000000  31 38 2e 30 2e 35 2e 32  31 30 37 0a              |18.0.5.2107.|
0000000c
```

Signed-off-by: Kapil Porwal 
Change-Id: I86f2848788d0576a8fe3557fa8048e4162e61e05
---
M src/soc/intel/common/block/cse/Makefile.mk
1 file changed, 1 insertion(+), 13 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/51/81051/1

diff --git a/src/soc/intel/common/block/cse/Makefile.mk b/src/soc/intel/common/block/cse/Makefile.mk
index 653d674..50011ec 100644
--- a/src/soc/intel/common/block/cse/Makefile.mk
+++ b/src/soc/intel/common/block/cse/Makefile.mk
@@ -89,20 +89,8 @@
 $(CSE_LITE_ME_RW)-compression := LZMA
 endif

-INPUT_FILE := $(call strip_quotes,$(CONFIG_SOC_INTEL_CSE_RW_FILE))
-TEMP_FILE := $(shell mktemp)
-OFFSETS := 16 18 20 22 # Offsets for CSE version components
-VERSIONS := CSE_VERSION_MAJOR CSE_VERSION_MINOR CSE_VERSION_HOTFIX CSE_VERSION_BUILD
-INDEXES := $(shell seq 1 $(words $(OFFSETS)))
-
 $(obj)/cse_rw.version:
-	$(foreach index,$(INDEXES), \
-		$(shell dd if=$(INPUT_FILE) of=$(TEMP_FILE) bs=1 skip=$(word $(index),$(OFFSETS)) count=2 status=none) \
-		$(eval $(word $(index),$(VERSIONS)) := $(shell printf "%d" 0x$(shell echo $(shell echo $(shell xxd -p $(TEMP_FILE)) | cut -c3-4)$(shell echo $(shell xxd -p $(TEMP_FILE)) | cut -c1-2))) ) \
-	)
-	rm -f $(TEMP_FILE)
-	$(eval CSE_RW_CBFS_VERSION := $(shell printf "%d.%d.%d.%d" $(CSE_VERSION_MAJOR)$(CSE_VERSION_MINOR)$(CSE_VERSION_HOTFIX)$(CSE_VERSION_BUILD)))
-	@echo '$(CSE_RW_CBFS_VERSION)' > $@
+	@echo $(shell hexdump -s 16 -n 8 -e '4/2 "%d."' $(CSE_RW_FILE) | sed 's/.$$//') > $@

CSE_RW_VERSION = $(call strip_quotes,$(CONFIG_SOC_INTEL_CSE_RW_VERSION_CBFS_NAME))
 regions-for-file-$(CSE_RW_VERSION) = FW_MAIN_A,FW_MAIN_B