payloads: Enable building depthcharge as part of the coreboot build

For CHROMEOS builds, depthcharge can be built automatically.
This dependency exists because depthcharge without vboot and subsequent
signing of the image doesn't work very well, and both are keyed to that
flag as well.

Change-Id: Id0195bd3b4e454f382782106d6512469106daac5
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/10924
Tested-by: build bot (Jenkins)
diff --git a/.gitignore b/.gitignore
index 7b3797f..912aa85 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@
 .ccwrap
 build/
 coreboot-builds/
+payloads/external/depthcharge/depthcharge/
 payloads/external/FILO/filo/
 payloads/external/GRUB2/grub2/
 payloads/external/SeaBIOS/seabios/
diff --git a/payloads/Makefile.inc b/payloads/Makefile.inc
index 4269715..792df60 100644
--- a/payloads/Makefile.inc
+++ b/payloads/Makefile.inc
@@ -23,6 +23,7 @@
 clean-payloads:
 	$(MAKE) -C payloads/coreinfo clean
 	$(MAKE) -C payloads/libpayload clean
+	$(MAKE) -C payloads/external/depthcharge -f Makefile.inc clean
 	$(MAKE) -C payloads/external/SeaBIOS -f Makefile.inc clean
 	$(MAKE) -C payloads/external/U-Boot -f Makefile.inc clean
 	$(MAKE) -C payloads/external/Memtest86Plus -f Makefile.inc clean
@@ -31,6 +32,7 @@
 distclean-payloads:
 	$(MAKE) -C payloads/coreinfo distclean
 	$(MAKE) -C payloads/libpayload distclean
+	$(MAKE) -C payloads/external/depthcharge -f Makefile.inc distclean
 	$(MAKE) -C payloads/external/SeaBIOS -f Makefile.inc distclean
 	$(MAKE) -C payloads/external/U-Boot -f Makefile.inc distclean
 	$(MAKE) -C payloads/external/Memtest86Plus -f Makefile.inc distclean
diff --git a/payloads/external/Makefile.inc b/payloads/external/Makefile.inc
index 3c20e13..5a6f625 100644
--- a/payloads/external/Makefile.inc
+++ b/payloads/external/Makefile.inc
@@ -25,6 +25,10 @@
 PAYLOAD_CONFIG=payloads/external/FILO/filo/.config
 PAYLOAD_VERSION=payloads/external/FILO/filo/build/version.h
 endif
+ifeq ($(CONFIG_PAYLOAD_DEPTHCHARGE),y)
+PAYLOAD_CONFIG=payloads/external/depthcharge/depthcharge/.config
+#TODO: Figure out version
+endif
 
 cbfs-files-$(CONFIG_INCLUDE_CONFIG_FILE) += payload_config
 payload_config-file := $(PAYLOAD_CONFIG)
@@ -59,6 +63,11 @@
 payloads/external/SeaBIOS/seabios/.config: payloads/external/SeaBIOS/seabios/out/bios.bin.elf
 payloads/external/SeaBIOS/seabios/out/autoversion.h: payloads/external/SeaBIOS/seabios/out/bios.bin.elf
 
+payloads/external/depthcharge/depthcharge/build/depthcharge.elf depthcharge: $(top)/$(DOTCONFIG) $(CBFSTOOL)
+	$(MAKE) -C payloads/external/depthcharge -f Makefile.inc \
+		BOARD=$(call ws_to_under,$(call strip_quotes,$(call tolower,$(CONFIG_MAINBOARD_PART_NUMBER)))) \
+		MFLAGS= MAKEFLAGS=
+
 filo:
 	$(MAKE) -C payloads/external/FILO -f Makefile.inc \
 			HOSTCC="$(HOSTCC)" \
diff --git a/payloads/external/depthcharge/Kconfig b/payloads/external/depthcharge/Kconfig
new file mode 100644
index 0000000..84b36e5
--- /dev/null
+++ b/payloads/external/depthcharge/Kconfig
@@ -0,0 +1,7 @@
+if PAYLOAD_DEPTHCHARGE
+
+config PAYLOAD_FILE
+	string
+	default "payloads/external/depthcharge/depthcharge/build/depthcharge.elf"
+
+endif
diff --git a/payloads/external/depthcharge/Kconfig.name b/payloads/external/depthcharge/Kconfig.name
new file mode 100644
index 0000000..bc564ec
--- /dev/null
+++ b/payloads/external/depthcharge/Kconfig.name
@@ -0,0 +1,8 @@
+config PAYLOAD_DEPTHCHARGE
+	bool "Depthcharge"
+	depends on CHROMEOS
+	help
+	  Select this option if you want to build a coreboot image
+	  with a depthcharge payload.
+
+	  See http://coreboot.org/Payloads for more information.
diff --git a/payloads/external/depthcharge/Makefile.inc b/payloads/external/depthcharge/Makefile.inc
new file mode 100644
index 0000000..4e76687
--- /dev/null
+++ b/payloads/external/depthcharge/Makefile.inc
@@ -0,0 +1,71 @@
+# release-R50-7978.B
+STABLE_COMMIT_ID=124af94fa5599a0698e59bf3d73675eb52fc6879
+
+project_name=depthcharge
+project_dir=$(CURDIR)/depthcharge
+project_git_repo=https://chromium.googlesource.com/chromiumos/platform/depthcharge
+project_config_file=$(project_dir)/.config
+output_dir=$(project_dir)/build
+libpayload_dir=$(abspath $(CURDIR)/../../libpayload)
+libpayload_install_dir=$(output_dir)/lp_$(BOARD)
+vboot_dir=$(abspath $(CURDIR)/../../../3rdparty/vboot)
+
+TAG-$(DEPTHCHARGE_MASTER)=origin/master
+TAG-$(DEPTHCHARGE_STABLE)=$(STABLE_COMMIT_ID)
+
+unexport KCONFIG_AUTOHEADER
+unexport KCONFIG_AUTOCONFIG
+unexport KCONFIG_DEPENDENCIES
+unexport KCONFIG_SPLITCONFIG
+unexport KCONFIG_TRISTATE
+unexport KCONFIG_NEGATIVES
+unexport src srck obj objk
+
+BOARD:=$(notdir $(CONFIG_MAINBOARD_DIR))
+
+all: build
+
+$(project_dir):
+	echo "    Cloning $(project_name) from Git"
+	git clone $(project_git_repo)
+
+fetch: $(project_dir)
+	cd $(project_dir); git show $(TAG-y) >/dev/null 2>&1 ;	if [ $$? -ne 0 ] || \
+		[ "$(TAG-y)" = "origin/master" ]; then \
+		echo "    Fetching new commits from the $(project_name) git repo"; \
+		git fetch; fi
+
+checkout: fetch
+	echo "    Checking out $(project_name) revision $(TAG-y)"
+	cd $(project_dir) ; git checkout master; git branch -D coreboot 2>/dev/null; git checkout -b coreboot $(TAG-y)
+
+$(libpayload_install_dir): $(project_dir)
+	test -f $(libpayload_dir)/configs/config.$(BOARD) || \
+		(echo "Error: $(libpayload_dir)/configs/config.$(BOARD) is not present" && \
+		false)
+	cp $(libpayload_dir)/configs/config.$(BOARD) $(libpayload_dir)/.config
+	$(MAKE) -C $(libpayload_dir) olddefconfig
+	$(MAKE) -C $(libpayload_dir)
+	$(MAKE) -C $(libpayload_dir) install DESTDIR=$(libpayload_install_dir)
+#	rm -f $(libpayload_dir)/.config
+
+config: $(libpayload_install_dir) checkout
+	echo "    CONFIG     project_name $(TAG-y)"
+	export VERSION=$$(cd depthcharge && \
+		git describe --tags --long --dirty 2>/dev/null || \
+		echo "unknown") ; \
+	cd $(project_dir) && $(MAKE) BOARD=$(BOARD) LIBPAYLOAD_DIR=$(libpayload_install_dir)/libpayload \
+		VB_SOURCE=$(vboot_dir) defconfig
+
+build: config
+	echo "    MAKE       $(project_name) $(TAG-y)"
+	cd $(project_dir) && $(MAKE) BOARD=$(BOARD) LIBPAYLOAD_DIR=$(libpayload_install_dir)/libpayload \
+		VB_SOURCE=$(vboot_dir) PATH="$(abspath ../../../build/util/cbfstool):$$PATH" depthcharge_unified
+
+clean:
+	test -d $(output_dir) && rm -rf $(output_dir) || exit 0
+
+distclean:
+	rm -rf $(project_dir)
+
+.PHONY: checkout config build clean distclean clone fetch