Flashrom refactoring (sonic-net#6922)

#### Why I did it
To build flashrom properly with dependency tracking.

#### How I did it
Moved flashrom code from platform/broadcom/sonic-platform-modules-dell/tools directory to src/flashrom directory.
At the end, flashrom_0.9.7_amd64.deb package is build which will be installed in the devices.

build_debian.sh

@@ -326,7 +326,6 @@ sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y in
 if [[ $CONFIGURED_ARCH == amd64 ]]; then
 ## Pre-install the fundamental packages for amd64 (x86)
 sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install      \
-    flashrom                \
     rasdaemon
 fi
 

files/build_templates/sonic_debian_extension.j2

@@ -329,6 +329,9 @@ sudo chmod 755 $FILESYSTEM_ROOT/usr/bin/container_checker
 # Install custom-built openssh sshd
 sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/openssh-server_*.deb
 
+# Install custom-built flashrom
+sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/flashrom_*.deb
+
 # Copy crontabs
 sudo cp -f $IMAGE_CONFIGS/cron.d/* $FILESYSTEM_ROOT/etc/cron.d/
 

platform/broadcom/platform-modules-dell.mk

@@ -52,6 +52,3 @@ $(eval $(call add_extra_package,$(DELL_Z9100_PLATFORM_MODULE),$(DELL_S5248F_PLAT
 DELL_S5296F_PLATFORM_MODULE = platform-modules-s5296f_$(DELL_S5296F_PLATFORM_MODULE_VERSION)_amd64.deb
 $(DELL_S5296F_PLATFORM_MODULE)_PLATFORM = x86_64-dellemc_s5296f_c3538-r0
 $(eval $(call add_extra_package,$(DELL_Z9100_PLATFORM_MODULE),$(DELL_S5296F_PLATFORM_MODULE)))
-
-#flashrom tool
-$(shell ./$(PLATFORM_PATH)/sonic-platform-modules-dell/tools/flashrom.sh  > /dev/null 2>&1)

platform/broadcom/sonic-platform-modules-dell/debian/platform-modules-s6100.install

@@ -25,6 +25,5 @@ s6100/systemd/platform-modules-s6100.service etc/systemd/system
 s6100/systemd/s6100-lpc-monitor.service etc/systemd/system
 s6100/systemd/s6100-reboot-cause.service etc/systemd/system
 s6100/systemd/s6100-i2c-enumerate.service etc/systemd/system
-tools/flashrom/flashrom usr/local/bin/
 common/fw-updater usr/local/bin
 common/onie_mode_set usr/local/bin

rules/flashrom.dep

@@ -0,0 +1,8 @@
+SPATH       := $($(FLASHROM)_SRC_PATH)
+DEP_FILES   := $(SONIC_COMMON_FILES_LIST) rules/flashrom.mk rules/flashrom.dep
+DEP_FILES   += $(SONIC_COMMON_BASE_FILES_LIST)
+DEP_FILES   += $(shell git ls-files $(SPATH))
+
+$(FLASHROM)_CACHE_MODE  := GIT_CONTENT_SHA
+$(FLASHROM)_DEP_FLAGS   := $(SONIC_COMMON_FLAGS_LIST)
+$(FLASHROM)_DEP_FILES   := $(DEP_FILES)

rules/flashrom.mk

@@ -0,0 +1,11 @@
+# flashrom package
+#
+
+FLASHROM_VERSION_FULL = 0.9.7
+
+export FLASHROM_VERSION_FULL
+
+FLASHROM = flashrom_$(FLASHROM_VERSION_FULL)_$(CONFIGURED_ARCH).deb
+$(FLASHROM)_SRC_PATH = $(SRC_PATH)/flashrom
+
+SONIC_MAKE_DEBS += $(FLASHROM)

slave.mk

@@ -860,6 +860,7 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_INSTALLERS)) : $(TARGET_PATH)/% : \
                 $(LIBNSS_TACPLUS) \
                 $(MONIT) \
                 $(OPENSSH_SERVER) \
+                $(FLASHROM) \
                 $(PYTHON_SWSSCOMMON) \
                 $(PYTHON3_SWSSCOMMON) \
                 $(SONIC_UTILITIES_DATA) \

src/flashrom/Makefile

@@ -0,0 +1,25 @@
+SHELL = /bin/bash
+.ONESHELL:
+.SHELLFLAGS += -e
+
+
+MAIN_TARGET = flashrom_$(FLASHROM_VERSION_FULL)_$(CONFIGURED_ARCH).deb
+
+$(addprefix $(DEST)/, $(MAIN_TARGET)): $(DEST)/% :
+	rm -rf ./flashrom-$(FLASHROM_VERSION_FULL)
+	# Obtain flashrom
+	git clone https://github.com/flashrom/flashrom.git flashrom-$(FLASHROM_VERSION_FULL)
+	pushd ./flashrom-$(FLASHROM_VERSION_FULL)
+
+	# Check out tag: tags/0.9.7
+	git checkout -b flashrom-src tags/$(FLASHROM_VERSION_FULL)
+
+	# Apply patch series
+	stg init
+	stg import -s ../patch/series
+
+	# Build package
+	dpkg-buildpackage -rfakeroot -b -us -uc -j$(SONIC_CONFIG_MAKE_JOBS)
+	popd
+
+	mv $* $(DEST)/

src/flashrom/patch/0003-Debian-package-base.patch

@@ -0,0 +1,45 @@
+diff --git a/debian/changelog b/debian/changelog
+new file mode 100644
+index 0000000..a7acb04
+--- /dev/null
++++ b/debian/changelog
+@@ -0,0 +1,5 @@
++flashrom (0.9.7) unstable; urgency=low
++
++  * Initial release
++
++ -- Dell Team <support@dell.com>  Mon, 14 Dec 2020 10:10:10 -0800
+diff --git a/debian/compat b/debian/compat
+new file mode 100644
+index 0000000..ec63514
+--- /dev/null
++++ b/debian/compat
+@@ -0,0 +1 @@
++9
+diff --git a/debian/control b/debian/control
+new file mode 100644
+index 0000000..8aafc90
+--- /dev/null
++++ b/debian/control
+@@ -0,0 +1,8 @@
++Source: flashrom
++Section: main
++Priority: optional
++Maintainer: Dell Team <support@dell.com>
++
++Package: flashrom
++Architecture: amd64
++Description: Flashrom Utility
+diff --git a/debian/rules b/debian/rules
+new file mode 100755
+index 0000000..492b21d
+--- /dev/null
++++ b/debian/rules
+@@ -0,0 +1,7 @@
++#!/usr/bin/make -f
++
++
++%:
++	dh $@
++
++override_dh_usrlocal:

src/flashrom/patch/0004-Flashrom-remove-tmpl.patch

@@ -0,0 +1,37 @@
+diff --git a/Makefile b/Makefile
+index 0e976e5..d4413df 100644
+--- a/Makefile
++++ b/Makefile
+@@ -686,7 +686,7 @@ FEATURE_LIBS += $(shell LC_ALL=C grep -q "NEEDLIBZ := yes" .libdeps && printf "%
+ LIBFLASHROM_OBJS = $(CHIP_OBJS) $(PROGRAMMER_OBJS) $(LIB_OBJS)
+ OBJS = $(CLI_OBJS) $(LIBFLASHROM_OBJS)
+
+-all: hwlibs features $(PROGRAM)$(EXEC_SUFFIX) $(PROGRAM).8
++all: hwlibs features $(PROGRAM)$(EXEC_SUFFIX)
+ ifeq ($(ARCH), x86)
+ 	@+$(MAKE) -C util/ich_descriptors_tool/ TARGET_OS=$(TARGET_OS) EXEC_SUFFIX=$(EXEC_SUFFIX)
+ endif
+@@ -914,22 +914,9 @@ endif
+ 	@$(DIFF) -q .features.tmp .features >/dev/null 2>&1 && rm .features.tmp || mv .features.tmp .features
+ 	@rm -f .featuretest.c .featuretest$(EXEC_SUFFIX)
+
+-$(PROGRAM).8: $(PROGRAM).8.tmpl
+-	@sed -e '1 s#".*".*#"$(shell ./util/getrevision.sh -d $(PROGRAM).8.tmpl)" "$(VERSION)"#' <$< >$@
+-
+-install: $(PROGRAM)$(EXEC_SUFFIX) $(PROGRAM).8
++install: $(PROGRAM)$(EXEC_SUFFIX)
+ 	mkdir -p $(DESTDIR)$(PREFIX)/sbin
+-	mkdir -p $(DESTDIR)$(MANDIR)/man8
+ 	$(INSTALL) -m 0755 $(PROGRAM)$(EXEC_SUFFIX) $(DESTDIR)$(PREFIX)/sbin
+-	$(INSTALL) -m 0644 $(PROGRAM).8 $(DESTDIR)$(MANDIR)/man8
+-
+-export: $(PROGRAM).8
+-	@rm -rf $(EXPORTDIR)/flashrom-$(RELEASENAME)
+-	@svn export -r BASE . $(EXPORTDIR)/flashrom-$(RELEASENAME)
+-	@sed "s/^SVNVERSION.*/SVNVERSION := $(SVNVERSION)/" Makefile >$(EXPORTDIR)/flashrom-$(RELEASENAME)/Makefile
+-	@cp $(PROGRAM).8 "$(EXPORTDIR)/flashrom-$(RELEASENAME)/$(PROGRAM).8"
+-	@LC_ALL=C svn log >$(EXPORTDIR)/flashrom-$(RELEASENAME)/ChangeLog
+-	@echo Exported $(EXPORTDIR)/flashrom-$(RELEASENAME)/
+
+ tarball: export
+ 	@tar cjf $(EXPORTDIR)/flashrom-$(RELEASENAME).tar.bz2 -C $(EXPORTDIR)/ $(TAROPTIONS) flashrom-$(RELEASENAME)/

src/flashrom/patch/series

@@ -0,0 +1,3 @@
+0002-Flashrom-support-for-Intel-Rangeley-and-Denverton-CP.patch
+0003-Debian-package-base.patch
+0004-Flashrom-remove-tmpl.patch