Kconfig: Escape variable to accommodate new Kconfig versions

Kconfig 4.17 started using the $(..) syntax for environment variable
expansion while we want to keep expansion to the build system.
Older Kconfig versions (like ours) simply drop the escapes, not
changing the behavior.

While we could let Kconfig expand some of the variables, that only
splits the handling in two places, making debugging harder and
potentially messing with reproducible builds (e.g. when paths end up
in configs), so escape them all.

Change-Id: Ibc4087fdd76089352bd8dd0edb1351ec79ea4faa
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42481
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>

90 files changed, 151 insertions, 151 deletions

diff --git a/src/Kconfig b/src/Kconfig
index 621a582252..1b49e2bd7e 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -417,7 +417,7 @@ config OVERRIDE_DEVICETREE
 
 config FMDFILE
 	string "fmap description file in fmd format"
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" if CHROMEOS
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" if CHROMEOS
 	default ""
 	help
 	  The build system creates a default FMAP from ROM_SIZE and CBFS_SIZE,
@@ -1188,7 +1188,7 @@ config BOOTBLOCK_CUSTOM
 
 config MEMLAYOUT_LD_FILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/memlayout.ld"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/memlayout.ld"
 	help
 	  This variable allows SoC/mainboard to supply in a custom linker file
 	  if required. This determines the linker file used for all the stages
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig
index 18c1ed3d9f..968d784d8b 100644
--- a/src/arch/x86/Kconfig
+++ b/src/arch/x86/Kconfig
@@ -162,7 +162,7 @@ config HAVE_CMOS_DEFAULT
 
 config CMOS_DEFAULT_FILE
 	string
-	default "src/mainboard/$(MAINBOARDDIR)/cmos.default"
+	default "src/mainboard/\$(MAINBOARDDIR)/cmos.default"
 	depends on HAVE_CMOS_DEFAULT
 
 config IOAPIC_INTERRUPTS_ON_FSB
diff --git a/src/device/Kconfig b/src/device/Kconfig
index 6bb326506f..d0d72f9a77 100644
--- a/src/device/Kconfig
+++ b/src/device/Kconfig
@@ -779,10 +779,10 @@ config INTEL_GMA_ADD_VBT
 config INTEL_GMA_VBT_FILE
 	string "VBT binary path and filename"
 	depends on INTEL_GMA_ADD_VBT
-	default "src/mainboard/$(MAINBOARDDIR)/variants/$(VARIANT_DIR)/data.vbt" \
+	default "src/mainboard/\$(MAINBOARDDIR)/variants/\$(VARIANT_DIR)/data.vbt" \
 		if INTEL_GMA_HAVE_VBT && VARIANT_DIR != ""
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt" if INTEL_GMA_HAVE_VBT
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/vbt.bin"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt" if INTEL_GMA_HAVE_VBT
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/vbt.bin"
 	help
 	  The path and filename of the VBT binary.
 
diff --git a/src/drivers/intel/fsp1_1/Kconfig b/src/drivers/intel/fsp1_1/Kconfig
index b1c6898bb4..d2cfa536c7 100644
--- a/src/drivers/intel/fsp1_1/Kconfig
+++ b/src/drivers/intel/fsp1_1/Kconfig
@@ -88,6 +88,6 @@ config FSP1_1_DISPLAY_LOGO
 config FSP1_1_LOGO_FILE_NAME
 	string "Logo file"
 	depends on FSP1_1_DISPLAY_LOGO
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/logo.bmp"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/logo.bmp"
 
 endif #PLATFORM_USES_FSP1_1
diff --git a/src/drivers/intel/fsp2_0/Kconfig b/src/drivers/intel/fsp2_0/Kconfig
index c7c44cd849..fc1eaf66b4 100644
--- a/src/drivers/intel/fsp2_0/Kconfig
+++ b/src/drivers/intel/fsp2_0/Kconfig
@@ -87,21 +87,21 @@ config FSP_T_FILE
 	string "Intel FSP-T (temp RAM init) binary path and filename" if !FSP_USE_REPO
 	depends on ADD_FSP_BINARIES
 	depends on FSP_CAR
-	default "$(obj)/Fsp_T.fd" if FSP_USE_REPO
+	default "\$(obj)/Fsp_T.fd" if FSP_USE_REPO
 	help
 	  The path and filename of the Intel FSP-T binary for this platform.
 
 config FSP_M_FILE
 	string "Intel FSP-M (memory init) binary path and filename" if !FSP_USE_REPO
 	depends on ADD_FSP_BINARIES
-	default "$(obj)/Fsp_M.fd" if FSP_USE_REPO
+	default "\$(obj)/Fsp_M.fd" if FSP_USE_REPO
 	help
 	  The path and filename of the Intel FSP-M binary for this platform.
 
 config FSP_S_FILE
 	string "Intel FSP-S (silicon init) binary path and filename" if !FSP_USE_REPO
 	depends on ADD_FSP_BINARIES
-	default "$(obj)/Fsp_S.fd" if FSP_USE_REPO
+	default "\$(obj)/Fsp_S.fd" if FSP_USE_REPO
 	help
 	  The path and filename of the Intel FSP-S binary for this platform.
 
@@ -192,7 +192,7 @@ config FSP2_0_DISPLAY_LOGO
 config FSP2_0_LOGO_FILE_NAME
 	string "Logo file"
 	depends on FSP2_0_DISPLAY_LOGO
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/logo.bmp"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/logo.bmp"
 
 config FSP_COMPRESS_FSP_S_LZMA
 	bool
diff --git a/src/drivers/wifi/Kconfig b/src/drivers/wifi/Kconfig
index 9b87f844f6..11ac7c1464 100644
--- a/src/drivers/wifi/Kconfig
+++ b/src/drivers/wifi/Kconfig
@@ -45,7 +45,7 @@ config WIFI_SAR_CBFS
 config WIFI_SAR_CBFS_FILEPATH
 	string "The cbfs file which has WIFI SAR defaults"
 	depends on WIFI_SAR_CBFS
-	default "src/mainboard/$(MAINBOARDDIR)/wifi_sar_defaults.hex"
+	default "src/mainboard/\$(MAINBOARDDIR)/wifi_sar_defaults.hex"
 
 config DSAR_SET_NUM
 	hex "Number of SAR sets when D-SAR is enabled"
diff --git a/src/mainboard/51nb/x210/Kconfig b/src/mainboard/51nb/x210/Kconfig
index 44c0f862c5..824e8b3608 100644
--- a/src/mainboard/51nb/x210/Kconfig
+++ b/src/mainboard/51nb/x210/Kconfig
@@ -46,7 +46,7 @@ config DIMM_SPD_SIZE
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/board.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/board.fmd"
 
 config NO_POST
 	default y
diff --git a/src/mainboard/asrock/g41c-gs/Kconfig b/src/mainboard/asrock/g41c-gs/Kconfig
index 900bfefe53..6dfe4aa0a9 100644
--- a/src/mainboard/asrock/g41c-gs/Kconfig
+++ b/src/mainboard/asrock/g41c-gs/Kconfig
@@ -44,10 +44,10 @@ config MAINBOARD_PART_NUMBER
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 # Override the default variant behavior, since the data.vbt is the same
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 endif # BOARD_ASROCK_G41*
diff --git a/src/mainboard/asus/p2b/Kconfig b/src/mainboard/asus/p2b/Kconfig
index f21de714c8..00295be947 100644
--- a/src/mainboard/asus/p2b/Kconfig
+++ b/src/mainboard/asus/p2b/Kconfig
@@ -49,7 +49,7 @@ config VARIANT_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config IRQ_SLOT_COUNT
 	int
diff --git a/src/mainboard/asus/p5qc/Kconfig b/src/mainboard/asus/p5qc/Kconfig
index 41c11c0288..a0fddfb1f1 100644
--- a/src/mainboard/asus/p5qc/Kconfig
+++ b/src/mainboard/asus/p5qc/Kconfig
@@ -35,7 +35,7 @@ config MAINBOARD_PART_NUMBER
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config GPIO_C
 	string
@@ -50,6 +50,6 @@ config GPIO_C
 config PAYLOAD_CONFIGFILE
 	string
 	default "" if PAYLOAD_SEABIOS && BOARD_ASUS_P5QL_PRO
-	default "$(top)/src/mainboard/$(MAINBOARDDIR)/config_seabios" if PAYLOAD_SEABIOS
+	default "\$(top)/src/mainboard/\$(MAINBOARDDIR)/config_seabios" if PAYLOAD_SEABIOS
 
 endif # BOARD_ASUS_P5Q*
diff --git a/src/mainboard/asus/p5qpl-am/Kconfig b/src/mainboard/asus/p5qpl-am/Kconfig
index 07ba8def29..cfa4c59aa9 100644
--- a/src/mainboard/asus/p5qpl-am/Kconfig
+++ b/src/mainboard/asus/p5qpl-am/Kconfig
@@ -35,10 +35,10 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 # Override the default variant behavior, since the data.vbt is the same
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 endif # BOARD_ASUS_P5QPL_AM || BOARD_ASUS_P5G41T_M_LX
diff --git a/src/mainboard/cavium/cn8100_sff_evb/Kconfig b/src/mainboard/cavium/cn8100_sff_evb/Kconfig
index 1c3d2ec215..721149ecf4 100644
--- a/src/mainboard/cavium/cn8100_sff_evb/Kconfig
+++ b/src/mainboard/cavium/cn8100_sff_evb/Kconfig
@@ -36,7 +36,7 @@ config UART_FOR_CONSOLE
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/board.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/board.fmd"
 
 config MAX_CPUS
 	default 4
diff --git a/src/mainboard/emulation/qemu-i440fx/Kconfig b/src/mainboard/emulation/qemu-i440fx/Kconfig
index 3c27b1e963..06ac685d3d 100644
--- a/src/mainboard/emulation/qemu-i440fx/Kconfig
+++ b/src/mainboard/emulation/qemu-i440fx/Kconfig
@@ -34,7 +34,7 @@ endif
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa-16M.fmd" if VBOOT_SLOTS_RW_A
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa-16M.fmd" if VBOOT_SLOTS_RW_A
 
 config VBOOT_VBNV_OFFSET
 	hex
diff --git a/src/mainboard/emulation/qemu-q35/Kconfig b/src/mainboard/emulation/qemu-q35/Kconfig
index 6a0903d7cf..edd2b2c6d6 100644
--- a/src/mainboard/emulation/qemu-q35/Kconfig
+++ b/src/mainboard/emulation/qemu-q35/Kconfig
@@ -29,8 +29,8 @@ config VBOOT
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa-16M.fmd" if VBOOT_SLOTS_RW_A && !VBOOT_SLOTS_RW_AB
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab-16M.fmd" if VBOOT_SLOTS_RW_AB
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa-16M.fmd" if VBOOT_SLOTS_RW_A && !VBOOT_SLOTS_RW_AB
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab-16M.fmd" if VBOOT_SLOTS_RW_AB
 
 if VBOOT
 
diff --git a/src/mainboard/facebook/monolith/Kconfig b/src/mainboard/facebook/monolith/Kconfig
index b4b6370ae5..92c02a799e 100644
--- a/src/mainboard/facebook/monolith/Kconfig
+++ b/src/mainboard/facebook/monolith/Kconfig
@@ -40,17 +40,17 @@ config MAX_CPUS
 config IFD_BIN_PATH
 	string
 	depends on HAVE_IFD_BIN
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/descriptor.bin"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/descriptor.bin"
 
 config ME_BIN_PATH
 	string
 	depends on HAVE_ME_BIN
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/me.bin"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/me.bin"
 
 config GBE_BIN_PATH
 	string
 	depends on HAVE_GBE_BIN
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/gbe.bin"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/gbe.bin"
 
 config PRERAM_CBMEM_CONSOLE_SIZE
 	hex
diff --git a/src/mainboard/foxconn/g41s-k/Kconfig b/src/mainboard/foxconn/g41s-k/Kconfig
index 8bdc958f3f..7a69655ea6 100644
--- a/src/mainboard/foxconn/g41s-k/Kconfig
+++ b/src/mainboard/foxconn/g41s-k/Kconfig
@@ -32,6 +32,6 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 endif # BOARD_FOXCONN_G41S_K
diff --git a/src/mainboard/gigabyte/ga-945gcm-s2l/Kconfig b/src/mainboard/gigabyte/ga-945gcm-s2l/Kconfig
index 8709083c88..9a8bf5bc90 100644
--- a/src/mainboard/gigabyte/ga-945gcm-s2l/Kconfig
+++ b/src/mainboard/gigabyte/ga-945gcm-s2l/Kconfig
@@ -43,6 +43,6 @@ config MAX_CPUS
 
 # Override the default variant behavior, since the data.vbt is the same
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 endif
diff --git a/src/mainboard/gigabyte/ga-b75m-d3h/Kconfig b/src/mainboard/gigabyte/ga-b75m-d3h/Kconfig
index 4eda2676d0..6edbe01c0f 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3h/Kconfig
+++ b/src/mainboard/gigabyte/ga-b75m-d3h/Kconfig
@@ -43,11 +43,11 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb" if BOARD_GIGABYTE_GA_B75_D3V
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb" if BOARD_GIGABYTE_GA_B75_D3V
 
 # Override the default variant behavior, since the data.vbt is the same
 config INTEL_GMA_VBT_FILE
 	string
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 endif # BOARD_GIGABYTE_GA_B75*
diff --git a/src/mainboard/gigabyte/ga-h61m-series/Kconfig b/src/mainboard/gigabyte/ga-h61m-series/Kconfig
index 60d516b261..cfbed99962 100644
--- a/src/mainboard/gigabyte/ga-h61m-series/Kconfig
+++ b/src/mainboard/gigabyte/ga-h61m-series/Kconfig
@@ -36,11 +36,11 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 # Override the default variant behavior, since the data.vbt is the same
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 config USBDEBUG_HCD_INDEX # Bottom left port seen from rear
 	int
diff --git a/src/mainboard/google/auron/Kconfig b/src/mainboard/google/auron/Kconfig
index 20d2e440c2..c5e00fd148 100644
--- a/src/mainboard/google/auron/Kconfig
+++ b/src/mainboard/google/auron/Kconfig
@@ -50,7 +50,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config EC_GOOGLE_CHROMEEC_BOARDNAME
 	string
diff --git a/src/mainboard/google/beltino/Kconfig b/src/mainboard/google/beltino/Kconfig
index 1e4fef6891..4aff149e0d 100644
--- a/src/mainboard/google/beltino/Kconfig
+++ b/src/mainboard/google/beltino/Kconfig
@@ -51,7 +51,7 @@ config VGA_BIOS_FILE
 # Override the default variant behavior, since the data.vbt is the same
 # for all variants except monroe
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt" if !BOARD_GOOGLE_MONROE
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt" if !BOARD_GOOGLE_MONROE
 
 config MAINBOARD_SMBIOS_MANUFACTURER
 	string
diff --git a/src/mainboard/google/cyan/Kconfig b/src/mainboard/google/cyan/Kconfig
index 92bafee514..a3db6d78d8 100644
--- a/src/mainboard/google/cyan/Kconfig
+++ b/src/mainboard/google/cyan/Kconfig
@@ -70,7 +70,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config CBFS_SIZE
 	hex
diff --git a/src/mainboard/google/dedede/Kconfig b/src/mainboard/google/dedede/Kconfig
index fe3b886d7d..26c369f4c4 100644
--- a/src/mainboard/google/dedede/Kconfig
+++ b/src/mainboard/google/dedede/Kconfig
@@ -76,7 +76,7 @@ config MAX_CPUS
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb" if !BOARD_GOOGLE_DEDEDE
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb" if !BOARD_GOOGLE_DEDEDE
 
 config TPM_TIS_ACPI_INTERRUPT
 	int
diff --git a/src/mainboard/google/deltaur/Kconfig b/src/mainboard/google/deltaur/Kconfig
index ddcdb26551..dafd593ab6 100644
--- a/src/mainboard/google/deltaur/Kconfig
+++ b/src/mainboard/google/deltaur/Kconfig
@@ -47,12 +47,12 @@ config DRIVER_TPM_I2C_ADDR
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos-gbe.fmd" if BOARD_GOOGLE_DELTAN
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" if BOARD_GOOGLE_DELTAUR
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos-gbe.fmd" if BOARD_GOOGLE_DELTAN
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" if BOARD_GOOGLE_DELTAUR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config POWER_OFF_ON_CR50_UPDATE
 	bool
diff --git a/src/mainboard/google/drallion/Kconfig b/src/mainboard/google/drallion/Kconfig
index c61a5b3d18..df67a8d18b 100644
--- a/src/mainboard/google/drallion/Kconfig
+++ b/src/mainboard/google/drallion/Kconfig
@@ -88,7 +88,7 @@ config VARIANT_DIR
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config VBOOT
 	select HAS_RECOVERY_MRC_CACHE
diff --git a/src/mainboard/google/fizz/Kconfig b/src/mainboard/google/fizz/Kconfig
index b6b34fd8e1..90a3dc4e62 100644
--- a/src/mainboard/google/fizz/Kconfig
+++ b/src/mainboard/google/fizz/Kconfig
@@ -36,7 +36,7 @@ config DEVICETREE
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config VBOOT
 	select EC_GOOGLE_CHROMEEC_SWITCHES
diff --git a/src/mainboard/google/glados/Kconfig b/src/mainboard/google/glados/Kconfig
index 5e3545a85c..9790552229 100644
--- a/src/mainboard/google/glados/Kconfig
+++ b/src/mainboard/google/glados/Kconfig
@@ -62,7 +62,7 @@ config VARIANT_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config MAX_CPUS
 	int
diff --git a/src/mainboard/google/hatch/Kconfig b/src/mainboard/google/hatch/Kconfig
index 5821b767d3..05bc711f57 100644
--- a/src/mainboard/google/hatch/Kconfig
+++ b/src/mainboard/google/hatch/Kconfig
@@ -90,15 +90,15 @@ config UART_FOR_CONSOLE
 if BOARD_GOOGLE_BASEBOARD_HATCH
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos-hatch-16MiB.fmd" if BOARD_ROMSIZE_KB_16384
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos-hatch-32MiB.fmd" if BOARD_ROMSIZE_KB_32768
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos-hatch-16MiB.fmd" if BOARD_ROMSIZE_KB_16384
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos-hatch-32MiB.fmd" if BOARD_ROMSIZE_KB_32768
 endif
 
 if BOARD_GOOGLE_BASEBOARD_PUFF
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos-puff-16MiB.fmd" if BOARD_ROMSIZE_KB_16384
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos-puff-32MiB.fmd" if BOARD_ROMSIZE_KB_32768
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos-puff-16MiB.fmd" if BOARD_ROMSIZE_KB_16384
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos-puff-32MiB.fmd" if BOARD_ROMSIZE_KB_32768
 endif
 
 config MAINBOARD_DIR
@@ -134,7 +134,7 @@ config MAINBOARD_PART_NUMBER
 config OVERRIDE_DEVICETREE
 	string
 	default "variants/helios_diskswap/overridetree.cb" if BOARD_GOOGLE_HELIOS_DISKSWAP
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config TPM_TIS_ACPI_INTERRUPT
 	int
diff --git a/src/mainboard/google/jecht/Kconfig b/src/mainboard/google/jecht/Kconfig
index 71143c9401..7065081317 100644
--- a/src/mainboard/google/jecht/Kconfig
+++ b/src/mainboard/google/jecht/Kconfig
@@ -50,7 +50,7 @@ config VGA_BIOS_FILE
 # Override the default variant behavior, since the data.vbt is the same
 # for all variants except tidus
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt" if !BOARD_GOOGLE_TIDUS
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt" if !BOARD_GOOGLE_TIDUS
 
 config MAINBOARD_SMBIOS_MANUFACTURER
 	string
diff --git a/src/mainboard/google/kahlee/Kconfig b/src/mainboard/google/kahlee/Kconfig
index 07eb585eff..a9ba0f5717 100644
--- a/src/mainboard/google/kahlee/Kconfig
+++ b/src/mainboard/google/kahlee/Kconfig
@@ -62,7 +62,7 @@ config MAINBOARD_PART_NUMBER
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config MAINBOARD_FAMILY
 	string
@@ -70,7 +70,7 @@ config MAINBOARD_FAMILY
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/variants/baseboard/chromeos.fmd" if CHROMEOS
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/variants/baseboard/chromeos.fmd" if CHROMEOS
 	default ""
 	help
 	  The build system creates a default FMAP from ROM_SIZE and CBFS_SIZE,
diff --git a/src/mainboard/google/octopus/Kconfig b/src/mainboard/google/octopus/Kconfig
index 7d9e1e8efa..d01d95f7fc 100644
--- a/src/mainboard/google/octopus/Kconfig
+++ b/src/mainboard/google/octopus/Kconfig
@@ -75,7 +75,7 @@ config DEVICETREE
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb" if !BOARD_GOOGLE_OCTOPUS
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb" if !BOARD_GOOGLE_OCTOPUS
 
 config MAINBOARD_PART_NUMBER
 	string
@@ -138,6 +138,6 @@ config DRAM_PART_IN_CBI_BOARD_ID_MIN
 	default 255 if BOARD_GOOGLE_OCTOPUS
 
 config FMDFILE
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/default.fmd" if !CHROMEOS
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/default.fmd" if !CHROMEOS
 
 endif # BOARD_GOOGLE_OCTOPUS
diff --git a/src/mainboard/google/rambi/Kconfig b/src/mainboard/google/rambi/Kconfig
index 3cb5e26277..aa1c977f2a 100644
--- a/src/mainboard/google/rambi/Kconfig
+++ b/src/mainboard/google/rambi/Kconfig
@@ -66,7 +66,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config EC_GOOGLE_CHROMEEC_BOARDNAME
 	string
diff --git a/src/mainboard/google/reef/Kconfig b/src/mainboard/google/reef/Kconfig
index 25d02cdc94..2455101171 100644
--- a/src/mainboard/google/reef/Kconfig
+++ b/src/mainboard/google/reef/Kconfig
@@ -102,10 +102,10 @@ config PRERAM_CBMEM_CONSOLE_SIZE
 	default 0xc00
 
 config FMDFILE
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/default.fmd" if !CHROMEOS
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/default.fmd" if !CHROMEOS
 
 # Override the default behavior, since the data.vbt is the same for all variants
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 endif # BOARD_GOOGLE_REEF
diff --git a/src/mainboard/google/sarien/Kconfig b/src/mainboard/google/sarien/Kconfig
index 3cd49650d9..df5e5b8420 100644
--- a/src/mainboard/google/sarien/Kconfig
+++ b/src/mainboard/google/sarien/Kconfig
@@ -91,7 +91,7 @@ config VARIANT_DIR
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config VBOOT
 	select HAS_RECOVERY_MRC_CACHE
diff --git a/src/mainboard/google/slippy/Kconfig b/src/mainboard/google/slippy/Kconfig
index 1f9c61d0c8..566d9b6972 100644
--- a/src/mainboard/google/slippy/Kconfig
+++ b/src/mainboard/google/slippy/Kconfig
@@ -50,7 +50,7 @@ config MAINBOARD_FAMILY
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config VGA_BIOS_FILE
 	string
@@ -59,7 +59,7 @@ config VGA_BIOS_FILE
 # Override the default variant behavior, since the data.vbt is the same
 # for all variants.
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 config MAINBOARD_SMBIOS_MANUFACTURER
 	string
diff --git a/src/mainboard/google/volteer/Kconfig b/src/mainboard/google/volteer/Kconfig
index 99a08a329d..44c393f70b 100644
--- a/src/mainboard/google/volteer/Kconfig
+++ b/src/mainboard/google/volteer/Kconfig
@@ -51,7 +51,7 @@ config DEVICETREE
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config DRIVER_TPM_SPI_BUS
 	default 0x1
diff --git a/src/mainboard/google/zork/Kconfig b/src/mainboard/google/zork/Kconfig
index 572daebfa8..f6061c5c7c 100644
--- a/src/mainboard/google/zork/Kconfig
+++ b/src/mainboard/google/zork/Kconfig
@@ -50,7 +50,7 @@ config ELOG_BOOT_COUNT_CMOS_OFFSET
 # even when CHROMEOS is not selected when building upstream.
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos.fmd"
 
 config MAINBOARD_DIR
 	string
@@ -80,7 +80,7 @@ config DEVICETREE
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config MAINBOARD_FAMILY
 	string
diff --git a/src/mainboard/hp/snb_ivb_laptops/Kconfig b/src/mainboard/hp/snb_ivb_laptops/Kconfig
index ee612357c2..2409348115 100644
--- a/src/mainboard/hp/snb_ivb_laptops/Kconfig
+++ b/src/mainboard/hp/snb_ivb_laptops/Kconfig
@@ -40,7 +40,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config VGA_BIOS_FILE
 	string
diff --git a/src/mainboard/intel/cannonlake_rvp/Kconfig b/src/mainboard/intel/cannonlake_rvp/Kconfig
index e4885a8ef3..4b5a4ef97c 100644
--- a/src/mainboard/intel/cannonlake_rvp/Kconfig
+++ b/src/mainboard/intel/cannonlake_rvp/Kconfig
@@ -38,7 +38,7 @@ config MAX_CPUS
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config INCLUDE_SND_MAX98357_DA7219_NHLT
 	bool "Include blobs for audio with MAX98357_DA7219"
diff --git a/src/mainboard/intel/cedarisland_crb/Kconfig b/src/mainboard/intel/cedarisland_crb/Kconfig
index 9e9e66ee14..417931e23d 100644
--- a/src/mainboard/intel/cedarisland_crb/Kconfig
+++ b/src/mainboard/intel/cedarisland_crb/Kconfig
@@ -18,6 +18,6 @@ config MAINBOARD_PART_NUMBER
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/board.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/board.fmd"
 
 endif
diff --git a/src/mainboard/intel/coffeelake_rvp/Kconfig b/src/mainboard/intel/coffeelake_rvp/Kconfig
index 1b1a85cd47..ec7024f220 100644
--- a/src/mainboard/intel/coffeelake_rvp/Kconfig
+++ b/src/mainboard/intel/coffeelake_rvp/Kconfig
@@ -64,13 +64,13 @@ config DEVICETREE
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config FMDFILE
 	string
 	depends on VBOOT
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" if BOARD_ROMSIZE_KB_16384
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos_32MB.fmd" if BOARD_ROMSIZE_KB_32768
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" if BOARD_ROMSIZE_KB_16384
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos_32MB.fmd" if BOARD_ROMSIZE_KB_32768
 
 config INCLUDE_SND_MAX98357_DA7219_NHLT
 	bool "Include blobs for audio with MAX98357_DA7219"
diff --git a/src/mainboard/intel/galileo/Kconfig b/src/mainboard/intel/galileo/Kconfig
index 6fee2f3443..cf6df6fa1b 100644
--- a/src/mainboard/intel/galileo/Kconfig
+++ b/src/mainboard/intel/galileo/Kconfig
@@ -107,7 +107,7 @@ config DRIVER_TPM_I2C_ADDR
 config FMDFILE
 	string "FMAP description file in fmd format"
 	depends on VBOOT
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot.fmd"
 	help
 	  The build system creates a default FMAP from ROM_SIZE and CBFS_SIZE,
 	  but in some cases more complex setups are required.
diff --git a/src/mainboard/intel/icelake_rvp/Kconfig b/src/mainboard/intel/icelake_rvp/Kconfig
index 8331f1bd91..952ae3ee34 100644
--- a/src/mainboard/intel/icelake_rvp/Kconfig
+++ b/src/mainboard/intel/icelake_rvp/Kconfig
@@ -40,7 +40,7 @@ config MAX_CPUS
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config DIMM_SPD_SIZE
 	int
diff --git a/src/mainboard/intel/jasperlake_rvp/Kconfig b/src/mainboard/intel/jasperlake_rvp/Kconfig
index a1283bda48..b14f07ffb4 100644
--- a/src/mainboard/intel/jasperlake_rvp/Kconfig
+++ b/src/mainboard/intel/jasperlake_rvp/Kconfig
@@ -37,7 +37,7 @@ config MAX_CPUS
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config DIMM_SPD_SIZE
 	int
diff --git a/src/mainboard/intel/kblrvp/Kconfig b/src/mainboard/intel/kblrvp/Kconfig
index afc510fe4e..d7209c58da 100644
--- a/src/mainboard/intel/kblrvp/Kconfig
+++ b/src/mainboard/intel/kblrvp/Kconfig
@@ -57,21 +57,21 @@ config DEVICETREE
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config IFD_BIN_PATH
 	string
 	depends on HAVE_IFD_BIN
-	default "3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR)/descriptor.rvp3.bin" if BOARD_INTEL_KBLRVP3
-	default "3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR)/descriptor.rvp7.bin" if BOARD_INTEL_KBLRVP7
-	default "3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR)/descriptor.rvp8.bin" if BOARD_INTEL_KBLRVP8
+	default "3rdparty/blobs/mainboard/\$(CONFIG_MAINBOARD_DIR)/descriptor.rvp3.bin" if BOARD_INTEL_KBLRVP3
+	default "3rdparty/blobs/mainboard/\$(CONFIG_MAINBOARD_DIR)/descriptor.rvp7.bin" if BOARD_INTEL_KBLRVP7
+	default "3rdparty/blobs/mainboard/\$(CONFIG_MAINBOARD_DIR)/descriptor.rvp8.bin" if BOARD_INTEL_KBLRVP8
 
 config ME_BIN_PATH
 	string
 	depends on HAVE_ME_BIN
-	default "3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR)/me.rvp3.bin" if BOARD_INTEL_KBLRVP3
-	default "3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR)/me.rvp7.bin" if BOARD_INTEL_KBLRVP7
-	default "3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR)/me.rvp8.bin" if BOARD_INTEL_KBLRVP8
+	default "3rdparty/blobs/mainboard/\$(CONFIG_MAINBOARD_DIR)/me.rvp3.bin" if BOARD_INTEL_KBLRVP3
+	default "3rdparty/blobs/mainboard/\$(CONFIG_MAINBOARD_DIR)/me.rvp7.bin" if BOARD_INTEL_KBLRVP7
+	default "3rdparty/blobs/mainboard/\$(CONFIG_MAINBOARD_DIR)/me.rvp8.bin" if BOARD_INTEL_KBLRVP8
 
 config PRERAM_CBMEM_CONSOLE_SIZE
 	hex
diff --git a/src/mainboard/intel/leafhill/Kconfig b/src/mainboard/intel/leafhill/Kconfig
index 97758e192f..652a6597b1 100644
--- a/src/mainboard/intel/leafhill/Kconfig
+++ b/src/mainboard/intel/leafhill/Kconfig
@@ -17,7 +17,7 @@ config MAINBOARD_PART_NUMBER
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/leafhill.$(CONFIG_COREBOOT_ROMSIZE_KB).fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/leafhill.\$(CONFIG_COREBOOT_ROMSIZE_KB).fmd"
 
 config UART_FOR_CONSOLE
 	default 2
diff --git a/src/mainboard/intel/minnow3/Kconfig b/src/mainboard/intel/minnow3/Kconfig
index 8d95a35d8d..0c86df6870 100644
--- a/src/mainboard/intel/minnow3/Kconfig
+++ b/src/mainboard/intel/minnow3/Kconfig
@@ -17,7 +17,7 @@ config MAINBOARD_PART_NUMBER
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/minnow3.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/minnow3.fmd"
 
 config UART_FOR_CONSOLE
 	default 2
diff --git a/src/mainboard/intel/tglrvp/Kconfig b/src/mainboard/intel/tglrvp/Kconfig
index d60918fdb4..e4d605e89d 100644
--- a/src/mainboard/intel/tglrvp/Kconfig
+++ b/src/mainboard/intel/tglrvp/Kconfig
@@ -51,7 +51,7 @@ config MAX_CPUS
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config DIMM_SPD_SIZE
 	int
diff --git a/src/mainboard/lenovo/g505s/Kconfig b/src/mainboard/lenovo/g505s/Kconfig
index 65201ab4c3..322d3a74a3 100644
--- a/src/mainboard/lenovo/g505s/Kconfig
+++ b/src/mainboard/lenovo/g505s/Kconfig
@@ -45,6 +45,6 @@ config VGA_BIOS_ID
 
 config PAYLOAD_CONFIGFILE
 	string
-	default "$(top)/src/mainboard/$(MAINBOARDDIR)/config_seabios" if PAYLOAD_SEABIOS
+	default "\$(top)/src/mainboard/\$(MAINBOARDDIR)/config_seabios" if PAYLOAD_SEABIOS
 
 endif # BOARD_LENOVO_G505S
diff --git a/src/mainboard/lenovo/t400/Kconfig b/src/mainboard/lenovo/t400/Kconfig
index 219df86c0d..5b3ecf1da6 100644
--- a/src/mainboard/lenovo/t400/Kconfig
+++ b/src/mainboard/lenovo/t400/Kconfig
@@ -43,7 +43,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
@@ -65,7 +65,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config USBDEBUG_HCD_INDEX
 	int
diff --git a/src/mainboard/lenovo/t410/Kconfig b/src/mainboard/lenovo/t410/Kconfig
index e939234db6..804043da56 100644
--- a/src/mainboard/lenovo/t410/Kconfig
+++ b/src/mainboard/lenovo/t410/Kconfig
@@ -44,7 +44,7 @@ config CBFS_SIZE
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/lenovo/t420/Kconfig b/src/mainboard/lenovo/t420/Kconfig
index 2dedfede4e..578a652620 100644
--- a/src/mainboard/lenovo/t420/Kconfig
+++ b/src/mainboard/lenovo/t420/Kconfig
@@ -45,7 +45,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/lenovo/t420s/Kconfig b/src/mainboard/lenovo/t420s/Kconfig
index a68d96f277..3616a8da24 100644
--- a/src/mainboard/lenovo/t420s/Kconfig
+++ b/src/mainboard/lenovo/t420s/Kconfig
@@ -44,7 +44,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/lenovo/t430/Kconfig b/src/mainboard/lenovo/t430/Kconfig
index 8d98e3ddfb..287e5f6233 100644
--- a/src/mainboard/lenovo/t430/Kconfig
+++ b/src/mainboard/lenovo/t430/Kconfig
@@ -43,7 +43,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/lenovo/t430s/Kconfig b/src/mainboard/lenovo/t430s/Kconfig
index fbadff760e..6b34105826 100644
--- a/src/mainboard/lenovo/t430s/Kconfig
+++ b/src/mainboard/lenovo/t430s/Kconfig
@@ -45,7 +45,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
@@ -63,7 +63,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config USBDEBUG_HCD_INDEX
 	int
diff --git a/src/mainboard/lenovo/t440p/Kconfig b/src/mainboard/lenovo/t440p/Kconfig
index 3ca4fab0a2..32dde6fdcc 100644
--- a/src/mainboard/lenovo/t440p/Kconfig
+++ b/src/mainboard/lenovo/t440p/Kconfig
@@ -41,7 +41,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/lenovo/t520/Kconfig b/src/mainboard/lenovo/t520/Kconfig
index 0b71ccd3cf..077bec2a1b 100644
--- a/src/mainboard/lenovo/t520/Kconfig
+++ b/src/mainboard/lenovo/t520/Kconfig
@@ -53,11 +53,11 @@ config MAINBOARD_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_PART_NUMBER
 	string
diff --git a/src/mainboard/lenovo/t530/Kconfig b/src/mainboard/lenovo/t530/Kconfig
index 8759ada59d..17e248d40f 100644
--- a/src/mainboard/lenovo/t530/Kconfig
+++ b/src/mainboard/lenovo/t530/Kconfig
@@ -45,7 +45,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
 
 config VARIANT_DIR
 	string
@@ -58,7 +58,7 @@ config MAINBOARD_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config MAINBOARD_PART_NUMBER
 	string
diff --git a/src/mainboard/lenovo/t60/Kconfig b/src/mainboard/lenovo/t60/Kconfig
index 57172ca25c..e4246b4f19 100644
--- a/src/mainboard/lenovo/t60/Kconfig
+++ b/src/mainboard/lenovo/t60/Kconfig
@@ -34,7 +34,7 @@ config VARIANT_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config MAINBOARD_PART_NUMBER
 	string
diff --git a/src/mainboard/lenovo/x131e/Kconfig b/src/mainboard/lenovo/x131e/Kconfig
index 06c5d83737..4508e5e4a1 100644
--- a/src/mainboard/lenovo/x131e/Kconfig
+++ b/src/mainboard/lenovo/x131e/Kconfig
@@ -38,7 +38,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/lenovo/x1_carbon_gen1/Kconfig b/src/mainboard/lenovo/x1_carbon_gen1/Kconfig
index d5349dff0b..adb999430c 100644
--- a/src/mainboard/lenovo/x1_carbon_gen1/Kconfig
+++ b/src/mainboard/lenovo/x1_carbon_gen1/Kconfig
@@ -43,7 +43,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/lenovo/x200/Kconfig b/src/mainboard/lenovo/x200/Kconfig
index 4ae040ac38..896795b8aa 100644
--- a/src/mainboard/lenovo/x200/Kconfig
+++ b/src/mainboard/lenovo/x200/Kconfig
@@ -40,7 +40,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
@@ -58,7 +58,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config USBDEBUG_HCD_INDEX
 	int
diff --git a/src/mainboard/lenovo/x201/Kconfig b/src/mainboard/lenovo/x201/Kconfig
index e7daadcfa7..e920816fe5 100644
--- a/src/mainboard/lenovo/x201/Kconfig
+++ b/src/mainboard/lenovo/x201/Kconfig
@@ -40,7 +40,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/lenovo/x220/Kconfig b/src/mainboard/lenovo/x220/Kconfig
index 8aa936c33d..9845089fd2 100644
--- a/src/mainboard/lenovo/x220/Kconfig
+++ b/src/mainboard/lenovo/x220/Kconfig
@@ -52,7 +52,7 @@ config VARIANT_DIR
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_PART_NUMBER
 	string
@@ -62,7 +62,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config USBDEBUG_HCD_INDEX
 	int
diff --git a/src/mainboard/lenovo/x230/Kconfig b/src/mainboard/lenovo/x230/Kconfig
index 1aa92d1cbb..8e5b857a92 100644
--- a/src/mainboard/lenovo/x230/Kconfig
+++ b/src/mainboard/lenovo/x230/Kconfig
@@ -44,7 +44,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
@@ -61,7 +61,7 @@ config MAINBOARD_PART_NUMBER
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config USBDEBUG_HCD_INDEX
 	int
diff --git a/src/mainboard/lenovo/x60/Kconfig b/src/mainboard/lenovo/x60/Kconfig
index 5083fd50fd..8397835aaf 100644
--- a/src/mainboard/lenovo/x60/Kconfig
+++ b/src/mainboard/lenovo/x60/Kconfig
@@ -42,7 +42,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
 
 config MAINBOARD_DIR
 	string
diff --git a/src/mainboard/msi/ms7707/Kconfig b/src/mainboard/msi/ms7707/Kconfig
index af4c811eae..e6095ba305 100644
--- a/src/mainboard/msi/ms7707/Kconfig
+++ b/src/mainboard/msi/ms7707/Kconfig
@@ -35,7 +35,7 @@ config CBFS_SIZE
 
 config VGA_BIOS_FILE
 	string
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/vgabios.bin"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/vgabios.bin"
 
 config VGA_BIOS_ID
 	string
diff --git a/src/mainboard/ocp/sonorapass/Kconfig b/src/mainboard/ocp/sonorapass/Kconfig
index 6a03d41b02..55c144b49b 100644
--- a/src/mainboard/ocp/sonorapass/Kconfig
+++ b/src/mainboard/ocp/sonorapass/Kconfig
@@ -25,6 +25,6 @@ config MAINBOARD_FAMILY
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/board.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/board.fmd"
 
 endif
diff --git a/src/mainboard/ocp/tiogapass/Kconfig b/src/mainboard/ocp/tiogapass/Kconfig
index 1eae1da905..421d4009ea 100644
--- a/src/mainboard/ocp/tiogapass/Kconfig
+++ b/src/mainboard/ocp/tiogapass/Kconfig
@@ -25,6 +25,6 @@ config MAINBOARD_FAMILY
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/board.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/board.fmd"
 
 endif # BOARD_OCP_TIOGAPASS
diff --git a/src/mainboard/opencellular/elgon/Kconfig b/src/mainboard/opencellular/elgon/Kconfig
index 2e9e01824c..94d677bd27 100644
--- a/src/mainboard/opencellular/elgon/Kconfig
+++ b/src/mainboard/opencellular/elgon/Kconfig
@@ -58,8 +58,8 @@ config UART_FOR_CONSOLE
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/board.fmd"
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot.fmd" if VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/board.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot.fmd" if VBOOT
 
 config MAX_CPUS
 	default 4
diff --git a/src/mainboard/pcengines/apu2/Kconfig b/src/mainboard/pcengines/apu2/Kconfig
index f0e53c6deb..25cc277927 100644
--- a/src/mainboard/pcengines/apu2/Kconfig
+++ b/src/mainboard/pcengines/apu2/Kconfig
@@ -35,7 +35,7 @@ config VARIANT_DIR
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config MAINBOARD_PART_NUMBER
 	string
diff --git a/src/mainboard/prodrive/hermes/Kconfig b/src/mainboard/prodrive/hermes/Kconfig
index 83178df5ae..3a74ce5bc8 100644
--- a/src/mainboard/prodrive/hermes/Kconfig
+++ b/src/mainboard/prodrive/hermes/Kconfig
@@ -43,7 +43,7 @@ config MAX_CPUS
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config DIMM_SPD_SIZE
 	int
diff --git a/src/mainboard/protectli/vault_bsw/Kconfig b/src/mainboard/protectli/vault_bsw/Kconfig
index 5850995cec..7bbdcd2c7e 100644
--- a/src/mainboard/protectli/vault_bsw/Kconfig
+++ b/src/mainboard/protectli/vault_bsw/Kconfig
@@ -24,7 +24,7 @@ config VARIANT_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config MAINBOARD_PART_NUMBER
 	string
diff --git a/src/mainboard/purism/librem_bdw/Kconfig b/src/mainboard/purism/librem_bdw/Kconfig
index 202a35d79e..275594b48d 100644
--- a/src/mainboard/purism/librem_bdw/Kconfig
+++ b/src/mainboard/purism/librem_bdw/Kconfig
@@ -19,7 +19,7 @@ config VARIANT_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config DRIVERS_UART_8250IO
 	def_bool n
@@ -68,7 +68,7 @@ config VGA_BIOS_ID
 # Override the default variant behavior, since the data.vbt is the same
 # for both variants.
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 # This platform has limited means to display POST codes
 config NO_POST
diff --git a/src/mainboard/purism/librem_skl/Kconfig b/src/mainboard/purism/librem_skl/Kconfig
index c86ebf18e9..cd8fc66c1c 100644
--- a/src/mainboard/purism/librem_skl/Kconfig
+++ b/src/mainboard/purism/librem_skl/Kconfig
@@ -45,7 +45,7 @@ config MAINBOARD_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config MAX_CPUS
 	int
@@ -59,7 +59,7 @@ config VGA_BIOS_ID
 # Override the default variant behavior, since same VBT
 # is used for all variants.
 config INTEL_GMA_VBT_FILE
-	default "src/mainboard/$(MAINBOARDDIR)/data.vbt"
+	default "src/mainboard/\$(MAINBOARDDIR)/data.vbt"
 
 config DIMM_MAX
 	int
diff --git a/src/mainboard/roda/rv11/Kconfig b/src/mainboard/roda/rv11/Kconfig
index f9e64a1c1e..d4871191ed 100644
--- a/src/mainboard/roda/rv11/Kconfig
+++ b/src/mainboard/roda/rv11/Kconfig
@@ -26,7 +26,7 @@ config VARIANT_DIR
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config MAINBOARD_PART_NUMBER
 	string
diff --git a/src/mainboard/siemens/mc_apl1/Kconfig b/src/mainboard/siemens/mc_apl1/Kconfig
index 52883b8bf5..0fe4a25a01 100644
--- a/src/mainboard/siemens/mc_apl1/Kconfig
+++ b/src/mainboard/siemens/mc_apl1/Kconfig
@@ -26,7 +26,7 @@ config VARIANT_DIR
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
 
 config MAINBOARD_PART_NUMBER
 	string
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl2/Kconfig b/src/mainboard/siemens/mc_apl1/variants/mc_apl2/Kconfig
index 0f32907da2..86244a2fe8 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl2/Kconfig
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl2/Kconfig
@@ -24,6 +24,6 @@ config VBOOT
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/mc_apl_vboot.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/mc_apl_vboot.fmd"
 
 endif # BOARD_SIEMENS_MC_APL2
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Kconfig b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Kconfig
index 55fb4b16bb..50a390beb8 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Kconfig
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Kconfig
@@ -27,6 +27,6 @@ config VBOOT
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/mc_apl_vboot.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/mc_apl_vboot.fmd"
 
 endif # BOARD_SIEMENS_MC_APL4
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig
index bd0b0d7162..71dfa0b2f0 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig
@@ -27,6 +27,6 @@ config VBOOT
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/mc_apl_vboot.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/mc_apl_vboot.fmd"
 
 endif # BOARD_SIEMENS_MC_APL5
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl6/Kconfig b/src/mainboard/siemens/mc_apl1/variants/mc_apl6/Kconfig
index 852294a01d..b34c9d88e8 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl6/Kconfig
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl6/Kconfig
@@ -23,6 +23,6 @@ config VBOOT
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/mc_apl_vboot.fmd"
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/mc_apl_vboot.fmd"
 
 endif # BOARD_SIEMENS_MC_APL6
diff --git a/src/mainboard/supermicro/x11-lga1151-series/Kconfig b/src/mainboard/supermicro/x11-lga1151-series/Kconfig
index e0f468c84b..e23da4322a 100644
--- a/src/mainboard/supermicro/x11-lga1151-series/Kconfig
+++ b/src/mainboard/supermicro/x11-lga1151-series/Kconfig
@@ -38,7 +38,7 @@ config VARIANT_DIR
 
 config OVERRIDE_DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/overridetree.cb"
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config VBOOT
 	select VBOOT_NO_BOARD_SUPPORT
@@ -60,7 +60,7 @@ config VBOOT_VBNV_OFFSET
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-ro-rwab.fmd" if VBOOT_SLOTS_RW_AB
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-ro-rwab.fmd" if VBOOT_SLOTS_RW_AB
 
 config CBFS_SIZE
 	hex
diff --git a/src/mainboard/up/squared/Kconfig b/src/mainboard/up/squared/Kconfig
index 5104713022..cc8f98e2ef 100644
--- a/src/mainboard/up/squared/Kconfig
+++ b/src/mainboard/up/squared/Kconfig
@@ -39,10 +39,10 @@ config MAINBOARD_PART_NUMBER
 
 config FMDFILE
 	string
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/upsquared.fmd"	if !VBOOT
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-ro.fmd"	if !VBOOT_SLOTS_RW_A
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-roa.fmd"	if VBOOT_SLOTS_RW_A && !VBOOT_SLOTS_RW_AB
-	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-roab.fmd"	if VBOOT_SLOTS_RW_AB
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/upsquared.fmd"	if !VBOOT
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-ro.fmd"	if !VBOOT_SLOTS_RW_A
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-roa.fmd"	if VBOOT_SLOTS_RW_A && !VBOOT_SLOTS_RW_AB
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/vboot-roab.fmd"	if VBOOT_SLOTS_RW_AB
 
 config SUBSYSTEM_VENDOR_ID
 	hex
diff --git a/src/security/vboot/Kconfig b/src/security/vboot/Kconfig
index 0637edce01..ad5b61e267 100644
--- a/src/security/vboot/Kconfig
+++ b/src/security/vboot/Kconfig
@@ -181,15 +181,15 @@ config VBOOT_WIPEOUT_SUPPORTED
 
 config VBOOT_FWID_MODEL
 	string "Firmware ID model"
-	default "Google_$(CONFIG_MAINBOARD_PART_NUMBER)" if CHROMEOS
-	default "$(CONFIG_MAINBOARD_VENDOR)_$(CONFIG_MAINBOARD_PART_NUMBER)"
+	default "Google_\$(CONFIG_MAINBOARD_PART_NUMBER)" if CHROMEOS
+	default "\$(CONFIG_MAINBOARD_VENDOR)_\$(CONFIG_MAINBOARD_PART_NUMBER)"
 	help
 	  This is the first part of the FWID written to various regions of a
 	  vboot firmware image to identify its version.
 
 config VBOOT_FWID_VERSION
 	string "Firmware ID version"
-	default ".$(KERNELVERSION)"
+	default ".\$(KERNELVERSION)"
 	help
 	  This is the second part of the FWID written to various regions of a
 	  vboot firmware image to identify its version.
@@ -326,23 +326,23 @@ endmenu # GBB
 menu "Vboot Keys"
 config VBOOT_ROOT_KEY
 	string "Root key (public)"
-	default "$(VBOOT_SOURCE)/tests/devkeys/root_key.vbpubk"
+	default "\$(VBOOT_SOURCE)/tests/devkeys/root_key.vbpubk"
 
 config VBOOT_RECOVERY_KEY
 	string "Recovery key (public)"
-	default "$(VBOOT_SOURCE)/tests/devkeys/recovery_key.vbpubk"
+	default "\$(VBOOT_SOURCE)/tests/devkeys/recovery_key.vbpubk"
 
 config VBOOT_FIRMWARE_PRIVKEY
 	string "Firmware key (private)"
-	default "$(VBOOT_SOURCE)/tests/devkeys/firmware_data_key.vbprivk"
+	default "\$(VBOOT_SOURCE)/tests/devkeys/firmware_data_key.vbprivk"
 
 config VBOOT_KERNEL_KEY
 	string "Kernel subkey (public)"
-	default "$(VBOOT_SOURCE)/tests/devkeys/kernel_subkey.vbpubk"
+	default "\$(VBOOT_SOURCE)/tests/devkeys/kernel_subkey.vbpubk"
 
 config VBOOT_KEYBLOCK
 	string "Keyblock to use for the RW regions"
-	default "$(VBOOT_SOURCE)/tests/devkeys/firmware.keyblock"
+	default "\$(VBOOT_SOURCE)/tests/devkeys/firmware.keyblock"
 
 config VBOOT_KEYBLOCK_VERSION
 	int "Keyblock version number"
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig
index 3f82215ffc..f837a2e686 100644
--- a/src/soc/intel/apollolake/Kconfig
+++ b/src/soc/intel/apollolake/Kconfig
@@ -218,7 +218,7 @@ config LBP2_FROM_IFWI
 config LBP2_FILE_NAME
 	string "Path of file to write to logical boot partition 2 region"
 	depends on NEED_LBP2 && !LBP2_FROM_IFWI
-	default "3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR)/lbp2.bin"
+	default "3rdparty/blobs/mainboard/\$(CONFIG_MAINBOARD_DIR)/lbp2.bin"
 	help
 	  Name of file to store in the logical boot partition 2 region.
 
@@ -239,7 +239,7 @@ config IFWI_FMAP_NAME
 config IFWI_FILE_NAME
 	string "Path of file to write to IFWI region"
 	depends on NEED_IFWI
-	default "3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR)/ifwi.bin"
+	default "3rdparty/blobs/mainboard/\$(CONFIG_MAINBOARD_DIR)/ifwi.bin"
 	help
 	  Name of file to store in the IFWI region.
 
diff --git a/src/soc/intel/braswell/Kconfig b/src/soc/intel/braswell/Kconfig
index 40ac213eb5..0acfeaa472 100644
--- a/src/soc/intel/braswell/Kconfig
+++ b/src/soc/intel/braswell/Kconfig
@@ -126,7 +126,7 @@ config USE_GOOGLE_FSP
 
 config FSP_HEADER_PATH
 	string
-	default "$(src)/vendorcode/intel/fsp/fsp1_1/braswell" if USE_GOOGLE_FSP
+	default "\$(src)/vendorcode/intel/fsp/fsp1_1/braswell" if USE_GOOGLE_FSP
 	default "3rdparty/fsp/BraswellFspBinPkg/Include/"
 	help
 	 Location of FSP header file FspUpdVpd.h
diff --git a/src/soc/intel/quark/Kconfig b/src/soc/intel/quark/Kconfig
index 4ecf6c1a14..6571eb24f8 100644
--- a/src/soc/intel/quark/Kconfig
+++ b/src/soc/intel/quark/Kconfig
@@ -178,11 +178,11 @@ config FSP_ESRAM_LOC
 
 config FSP_M_FILE
 	string
-	default "3rdparty/blobs/soc/intel/quark/$(CONFIG_FSP_TYPE)/$(CONFIG_FSP_BUILD_TYPE)/FSP_M.fd"
+	default "3rdparty/blobs/soc/intel/quark/\$(CONFIG_FSP_TYPE)/\$(CONFIG_FSP_BUILD_TYPE)/FSP_M.fd"
 
 config FSP_S_FILE
 	string
-	default "3rdparty/blobs/soc/intel/quark/$(CONFIG_FSP_TYPE)/$(CONFIG_FSP_BUILD_TYPE)/FSP_S.fd"
+	default "3rdparty/blobs/soc/intel/quark/\$(CONFIG_FSP_TYPE)/\$(CONFIG_FSP_BUILD_TYPE)/FSP_S.fd"
 
 #####
 # RMU binary
diff --git a/src/southbridge/intel/common/firmware/Kconfig b/src/southbridge/intel/common/firmware/Kconfig
index d827b1a1cf..4e934265bb 100644
--- a/src/southbridge/intel/common/firmware/Kconfig
+++ b/src/southbridge/intel/common/firmware/Kconfig
@@ -21,7 +21,7 @@ config HAVE_IFD_BIN
 
 config IFD_BIN_PATH
 	string "Path and filename of the descriptor.bin file"
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/descriptor.bin"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/descriptor.bin"
 	depends on HAVE_IFD_BIN
 
 config HAVE_ME_BIN
@@ -39,7 +39,7 @@ config HAVE_ME_BIN
 
 config ME_BIN_PATH
 	string "Path to management engine firmware"
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/me.bin"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/me.bin"
 	depends on HAVE_ME_BIN
 
 config CHECK_ME
@@ -107,7 +107,7 @@ config HAVE_GBE_BIN
 config GBE_BIN_PATH
 	string "Path to gigabit ethernet configuration"
 	depends on HAVE_GBE_BIN
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/gbe.bin"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/gbe.bin"
 
 config MAINBOARD_USES_IFD_EC_REGION
 	def_bool n
@@ -125,7 +125,7 @@ config HAVE_EC_BIN
 config EC_BIN_PATH
 	string "Path to EC firmware"
 	depends on HAVE_EC_BIN
-	default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/ec.bin"
+	default "3rdparty/blobs/mainboard/\$(MAINBOARDDIR)/ec.bin"
 
 choice
 	prompt "Protect flash regions"
diff --git a/src/vendorcode/amd/pi/Kconfig b/src/vendorcode/amd/pi/Kconfig
index 9dcdf34025..15d2ab270d 100644
--- a/src/vendorcode/amd/pi/Kconfig
+++ b/src/vendorcode/amd/pi/Kconfig
@@ -43,9 +43,9 @@ config AGESA_BINARY_PI_FILE
 	string "AGESA PI binary file name"
 	default "3rdparty/blobs/pi/amd/00630F01/FP3/AGESA.bin" if CPU_AMD_PI_00630F01
 	default "3rdparty/blobs/pi/amd/00730F01/FT3b/AGESA.bin" if CPU_AMD_PI_00730F01
-	default "3rdparty/amd_blobs/stoneyridge/pi/CZ/$(CONFIG_AMD_SOC_PACKAGE)/AGESA.bin" if AMD_APU_MERLINFALCON && USE_AMD_BLOBS
-	default "3rdparty/amd_blobs/stoneyridge/pi/ST/$(CONFIG_AMD_SOC_PACKAGE)/AGESA.bin" if AMD_APU_PRAIRIEFALCON && USE_AMD_BLOBS
-	default "3rdparty/amd_blobs/stoneyridge/pi/ST/$(CONFIG_AMD_SOC_PACKAGE)/AGESA.bin" if AMD_APU_STONEYRIDGE && USE_AMD_BLOBS
+	default "3rdparty/amd_blobs/stoneyridge/pi/CZ/\$(CONFIG_AMD_SOC_PACKAGE)/AGESA.bin" if AMD_APU_MERLINFALCON && USE_AMD_BLOBS
+	default "3rdparty/amd_blobs/stoneyridge/pi/ST/\$(CONFIG_AMD_SOC_PACKAGE)/AGESA.bin" if AMD_APU_PRAIRIEFALCON && USE_AMD_BLOBS
+	default "3rdparty/amd_blobs/stoneyridge/pi/ST/\$(CONFIG_AMD_SOC_PACKAGE)/AGESA.bin" if AMD_APU_STONEYRIDGE && USE_AMD_BLOBS
 	default "3rdparty/blobs/pi/amd/00660F01/FP4/AGESA.bin" if CPU_AMD_PI_00660F01
 	help
 	  Specify the binary file to use for AMD platform initialization.
diff --git a/src/vendorcode/eltan/security/verified_boot/Kconfig b/src/vendorcode/eltan/security/verified_boot/Kconfig
index 11574dd543..b4d1378d47 100644
--- a/src/vendorcode/eltan/security/verified_boot/Kconfig
+++ b/src/vendorcode/eltan/security/verified_boot/Kconfig
@@ -27,7 +27,7 @@ config VENDORCODE_ELTAN_OEM_MANIFEST_LOC
 
 config VENDORCODE_ELTAN_VBOOT_MANIFEST
 	string "Verified boot manifest file"
-	default "mainboard/$(MAINBOARD_DIR)/manifest.h"
+	default "mainboard/\$(MAINBOARD_DIR)/manifest.h"
 
 config VENDORCODE_ELTAN_OEM_MANIFEST_ITEMS
 	int "Manifest Items"