ec/google/chromeec: Drop ability to build Chrome-EC, PD components

In preparation for dropping the Chrome-EC submodule, remove the ability
for Chrome-EC and PD components to be built as part of coreboot.
These components have not been used or buildable for many years.

Change-Id: Ibf6bd43e755cf5b4d2aa8a42f38dc52e7023e9b3
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83638
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Caveh Jalali <caveh@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>

src/ec/google/chromeec/Kconfig

@@ -104,23 +104,6 @@ config EC_GOOGLE_CHROMEEC_SKUID
 	help
 	  Provides common routine for reporting the skuid to ChromeOS.
 
-config EC_GOOGLE_CHROMEEC_BOARDNAME
-	string "Chrome EC board name for EC"
-	default ""
-	help
-	  The board name used in the Chrome EC code base to build
-	  the EC firmware.  If set, the coreboot build with also
-	  build the EC firmware and add it to the image.
-
-config EC_GOOGLE_CHROMEEC_PD_BOARDNAME
-	depends on EC_GOOGLE_CHROMEEC_PD
-	string "Chrome EC board name for PD"
-	default ""
-	help
-	  The board name used in the Chrome EC code base to build
-	  the PD firmware.  If set, the coreboot build with also
-	  build the EC firmware and add it to the image.
-
 config EC_GOOGLE_CHROMEEC_RTC
 	bool "Enable ChromeOS EC RTC"
 	help
@@ -129,13 +112,12 @@ config EC_GOOGLE_CHROMEEC_RTC
 
 choice
 	prompt "Chrome EC firmware source"
-	default EC_GOOGLE_CHROMEEC_FIRMWARE_BUILTIN if EC_GOOGLE_CHROMEEC_BOARDNAME != ""
 	default EC_GOOGLE_CHROMEEC_FIRMWARE_NONE
 
 	config EC_GOOGLE_CHROMEEC_FIRMWARE_NONE
 	bool "No EC firmware is included"
 	help
-	  Disable building and including any EC firmware in the image.
+	  No EC firmware is included in the image.
 
 	config EC_GOOGLE_CHROMEEC_FIRMWARE_EXTERNAL
 	bool "External EC firmware is included"
@@ -143,11 +125,6 @@ choice
 	  Include EC firmware binary in the image from an external source.
 	  It is expected to be built externally.
 
-	config EC_GOOGLE_CHROMEEC_FIRMWARE_BUILTIN
-	bool "Builtin EC firmware is included"
-	help
-	  Build and include EC firmware binary in the image.
-
 endchoice
 
 config EC_GOOGLE_CHROMEEC_FIRMWARE_FILE
@@ -159,13 +136,12 @@ config EC_GOOGLE_CHROMEEC_FIRMWARE_FILE
 choice
 	prompt "Chrome EC firmware source for PD"
 	depends on EC_GOOGLE_CHROMEEC_PD
-	default EC_GOOGLE_CHROMEEC_PD_FIRMWARE_BUILTIN if EC_GOOGLE_CHROMEEC_PD_BOARDNAME != ""
 	default EC_GOOGLE_CHROMEEC_PD_FIRMWARE_NONE
 
 	config EC_GOOGLE_CHROMEEC_PD_FIRMWARE_NONE
 	bool "No PD firmware is included"
 	help
-	  Disable building and including any PD firmware in the image.
+	  No PD firmware is included in the image.
 
 	config EC_GOOGLE_CHROMEEC_PD_FIRMWARE_EXTERNAL
 	bool "External PD firmware is included"
@@ -173,11 +149,6 @@ choice
 	  Include PD firmware binary in the image from an external source.
 	  It is expected to be built externally.
 
-	config EC_GOOGLE_CHROMEEC_PD_FIRMWARE_BUILTIN
-	bool "Builtin PD firmware is included"
-	help
-	  Build and include PD firmware binary in the image.
-
 endchoice
 
 config EC_GOOGLE_CHROMEEC_PD_FIRMWARE_FILE

src/ec/google/chromeec/Makefile.mk

@@ -74,19 +74,6 @@ CONFIG_EC_GOOGLE_CHROMEEC_FIRMWARE_FILE := $(call strip_quotes,$(CONFIG_EC_GOOGL
 
 $(obj)/mainboard/$(MAINBOARDDIR)/ecrw: $(CONFIG_EC_GOOGLE_CHROMEEC_FIRMWARE_FILE)
 	cp $(CONFIG_EC_GOOGLE_CHROMEEC_FIRMWARE_FILE) $@
-else
-CONFIG_EC_GOOGLE_CHROMEEC_BOARDNAME := $(call strip_quotes,$(CONFIG_EC_GOOGLE_CHROMEEC_BOARDNAME))
-
-$(obj)/mainboard/$(MAINBOARDDIR)/ecrw:
-	$(MAKE) -C $(CHROMEEC_SOURCE) $(if $(CONFIG_CCACHE),,CCACHE=) \
-		out=$(abspath $(obj)/external/chromeec/$(CONFIG_EC_GOOGLE_CHROMEEC_BOARDNAME)) \
-		REPRODUCIBLE_BUILD=1 \
-		CC=$(GCC_CC_arm) \
-		CROSS_COMPILE=$(subst -cpp,-,$(CPP_arm)) \
-		HOST_CROSS_COMPILE= \
-		BOARD=$(CONFIG_EC_GOOGLE_CHROMEEC_BOARDNAME) \
-		rw
-	cp $(obj)/external/chromeec/$(CONFIG_EC_GOOGLE_CHROMEEC_BOARDNAME)/RW/ec.RW.flat $@
 endif
 
 $(obj)/mainboard/$(MAINBOARDDIR)/ecrw.hash: $(obj)/mainboard/$(MAINBOARDDIR)/ecrw
@@ -113,19 +100,6 @@ CONFIG_EC_GOOGLE_CHROMEEC_PD_FIRMWARE_FILE := $(call strip_quotes,$(CONFIG_EC_GO
 
 $(obj)/mainboard/$(MAINBOARDDIR)/pdrw: $(CONFIG_EC_GOOGLE_CHROMEEC_PD_FIRMWARE_FILE)
 	cp $(CONFIG_EC_GOOGLE_CHROMEEC_PD_FIRMWARE_FILE) $@
-else
-CONFIG_EC_GOOGLE_CHROMEEC_PD_BOARDNAME := $(call strip_quotes,$(CONFIG_EC_GOOGLE_CHROMEEC_PD_BOARDNAME))
-
-$(obj)/mainboard/$(MAINBOARDDIR)/pdrw:
-	$(MAKE) -C $(CHROMEEC_SOURCE) $(if $(CONFIG_CCACHE),,CCACHE=) \
-		out=$(abspath $(obj)/external/chromeec/$(CONFIG_EC_GOOGLE_CHROMEEC_PD_BOARDNAME)) \
-		REPRODUCIBLE_BUILD=1 \
-		CC=$(GCC_CC_arm) \
-		CROSS_COMPILE=$(subst -cpp,-,$(CPP_arm)) \
-		HOST_CROSS_COMPILE= \
-		BOARD=$(CONFIG_EC_GOOGLE_CHROMEEC_PD_BOARDNAME) \
-		rw
-	cp $(obj)/external/chromeec/$(CONFIG_EC_GOOGLE_CHROMEEC_PD_BOARDNAME)/RW/ec.RW.flat $@
 endif
 
 $(obj)/mainboard/$(MAINBOARDDIR)/pdrw.hash: $(obj)/mainboard/$(MAINBOARDDIR)/pdrw

src/mainboard/google/foster/Kconfig

@@ -61,10 +61,6 @@ config DRIVER_TPM_I2C_ADDR
 	hex
 	default 0x20
 
-#config EC_GOOGLE_CHROMEEC_BOARDNAME
-#	string
-#	default "nyan"
-
 config VBOOT_FWID_MODEL
 	string
 	default "Nvidia_Foster"

src/mainboard/google/rambi/Kconfig

@@ -143,10 +143,6 @@ config MAINBOARD_PART_NUMBER
 config OVERRIDE_DEVICETREE
 	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
-config EC_GOOGLE_CHROMEEC_BOARDNAME
-	string
-	default ""
-
 config MAINBOARD_SMBIOS_MANUFACTURER
 	string
 	default "GOOGLE"