mb/lenovo/*: Add support for VBOOT on 12MiB devices

Enable VBOOT support on all devices that have a 12 MiB flash, using
RW_MAIN_A + RW_MAIN_B partition, allowing the use of tianocore payload
in both RW_MAIN_A, RW_MAIN_B and WP_RO.

* Add VBNV section to cmos.layout
* Add FMAP for VBOOT
* Select Kconfigs for VBOOT
* Enable VBOOT_SLOTS_RW_AB by default

The VBNV is intentionally not covered by the CMOS checksum.

Tested on x230 and T440p.

Change-Id: I8a35a06ece1e9d57a2ef23970e61ae26fafce543
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Jonas Moehle <ad-min@mailbox.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32617
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>

21 files changed, 392 insertions, 0 deletions

diff --git a/src/mainboard/lenovo/t430/Kconfig b/src/mainboard/lenovo/t430/Kconfig
index 78da38502b..a73a1b2225 100644
--- a/src/mainboard/lenovo/t430/Kconfig
+++ b/src/mainboard/lenovo/t430/Kconfig
@@ -26,6 +26,25 @@ config BOARD_SPECIFIC_OPTIONS
 	select INTEL_GMA_HAVE_VBT
 	select MAINBOARD_USES_IFD_GBE_REGION
 
+config VBOOT
+	select VBOOT_VBNV_CMOS
+	select GBB_FLAG_DISABLE_LID_SHUTDOWN
+	select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_FWMP
+	select HAS_RECOVERY_MRC_CACHE
+
+config VBOOT_SLOTS_RW_AB
+	default y
+
+config VBOOT_VBNV_OFFSET
+	hex
+	default 0x2a
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+
 config MAINBOARD_DIR
 	string
 	default "lenovo/t430"
diff --git a/src/mainboard/lenovo/t430/cmos.layout b/src/mainboard/lenovo/t430/cmos.layout
index 1b50e7fa74..f9757f0794 100644
--- a/src/mainboard/lenovo/t430/cmos.layout
+++ b/src/mainboard/lenovo/t430/cmos.layout
@@ -80,6 +80,9 @@ entries
 #437        3        r       0        unused
 440          8       h       0        volume
 
+# VBOOT
+448          128     r       0        vbnv
+
 # SandyBridge MRC Scrambler Seed values
 896          32      r       0        mrc_scrambler_seed
 928          32      r       0        mrc_scrambler_seed_s3
diff --git a/src/mainboard/lenovo/t430/vboot-rwab.fmd b/src/mainboard/lenovo/t430/vboot-rwab.fmd
new file mode 100644
index 0000000000..1747c0e708
--- /dev/null
+++ b/src/mainboard/lenovo/t430/vboot-rwab.fmd
@@ -0,0 +1,34 @@
+FLASH@0xff400000 0xc00000 {
+	SI_ALL@0x0 0x500000 {
+		SI_DESC@0x0 0x1000
+		SI_GBE@0x1000 0x2000
+		SI_ME
+	}
+	SI_BIOS@0x500000 0x700000 {
+		RW_SECTION_A 0x280000 {
+			VBLOCK_A 0x10000
+			FW_MAIN_A(CBFS)
+			RW_FWID_A 0x40
+		}
+		RW_SECTION_B 0x280000 {
+			VBLOCK_B 0x10000
+			FW_MAIN_B(CBFS)
+			RW_FWID_B 0x40
+		}
+		UNIFIED_MRC_CACHE@0x500000 0x20000 {
+			RECOVERY_MRC_CACHE@0x0 0x10000
+			RW_MRC_CACHE@0x10000 0x10000
+		}
+		RW_VPD(PRESERVE) 0x1000
+		SMMSTORE(PRESERVE)@0x521000 0x40000
+
+		WP_RO {
+			FMAP 0x800
+			RO_FRID 0x40
+			RO_PADDING 0x7c0
+			RO_VPD(PRESERVE) 0x1000
+			GBB 0x1e000
+			COREBOOT(CBFS)
+		}
+	}
+}
diff --git a/src/mainboard/lenovo/t430s/Kconfig b/src/mainboard/lenovo/t430s/Kconfig
index 36f03ae468..5162e0568e 100644
--- a/src/mainboard/lenovo/t430s/Kconfig
+++ b/src/mainboard/lenovo/t430s/Kconfig
@@ -27,6 +27,25 @@ config BOARD_SPECIFIC_OPTIONS
 	# Workaround for EC/KBC IRQ1.
 	select SERIRQ_CONTINUOUS_MODE
 
+config VBOOT
+	select VBOOT_VBNV_CMOS
+	select GBB_FLAG_DISABLE_LID_SHUTDOWN
+	select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_FWMP
+	select HAS_RECOVERY_MRC_CACHE
+
+config VBOOT_SLOTS_RW_AB
+	default y
+
+config VBOOT_VBNV_OFFSET
+	hex
+	default 0x2a
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+
 config MAINBOARD_DIR
 	string
 	default "lenovo/t430s"
diff --git a/src/mainboard/lenovo/t430s/cmos.layout b/src/mainboard/lenovo/t430s/cmos.layout
index 97d97ed349..891a29414c 100644
--- a/src/mainboard/lenovo/t430s/cmos.layout
+++ b/src/mainboard/lenovo/t430s/cmos.layout
@@ -80,6 +80,9 @@ entries
 #436         4       r       0        unused
 440          8       h       0        volume
 
+# VBOOT
+448          128     r       0        vbnv
+
 # SandyBridge MRC Scrambler Seed values
 896          32      r       0        mrc_scrambler_seed
 928          32      r       0        mrc_scrambler_seed_s3
diff --git a/src/mainboard/lenovo/t430s/vboot-rwab.fmd b/src/mainboard/lenovo/t430s/vboot-rwab.fmd
new file mode 100644
index 0000000000..1747c0e708
--- /dev/null
+++ b/src/mainboard/lenovo/t430s/vboot-rwab.fmd
@@ -0,0 +1,34 @@
+FLASH@0xff400000 0xc00000 {
+	SI_ALL@0x0 0x500000 {
+		SI_DESC@0x0 0x1000
+		SI_GBE@0x1000 0x2000
+		SI_ME
+	}
+	SI_BIOS@0x500000 0x700000 {
+		RW_SECTION_A 0x280000 {
+			VBLOCK_A 0x10000
+			FW_MAIN_A(CBFS)
+			RW_FWID_A 0x40
+		}
+		RW_SECTION_B 0x280000 {
+			VBLOCK_B 0x10000
+			FW_MAIN_B(CBFS)
+			RW_FWID_B 0x40
+		}
+		UNIFIED_MRC_CACHE@0x500000 0x20000 {
+			RECOVERY_MRC_CACHE@0x0 0x10000
+			RW_MRC_CACHE@0x10000 0x10000
+		}
+		RW_VPD(PRESERVE) 0x1000
+		SMMSTORE(PRESERVE)@0x521000 0x40000
+
+		WP_RO {
+			FMAP 0x800
+			RO_FRID 0x40
+			RO_PADDING 0x7c0
+			RO_VPD(PRESERVE) 0x1000
+			GBB 0x1e000
+			COREBOOT(CBFS)
+		}
+	}
+}
diff --git a/src/mainboard/lenovo/t440p/Kconfig b/src/mainboard/lenovo/t440p/Kconfig
index faaa73a78c..95cb1dc607 100644
--- a/src/mainboard/lenovo/t440p/Kconfig
+++ b/src/mainboard/lenovo/t440p/Kconfig
@@ -23,6 +23,25 @@ config BOARD_SPECIFIC_OPTIONS
 	select SYSTEM_TYPE_LAPTOP
 	select MAINBOARD_USES_IFD_GBE_REGION
 
+config VBOOT
+	select VBOOT_VBNV_CMOS
+	select GBB_FLAG_DISABLE_LID_SHUTDOWN
+	select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_FWMP
+	select HAS_RECOVERY_MRC_CACHE
+
+config VBOOT_SLOTS_RW_AB
+	default y
+
+config VBOOT_VBNV_OFFSET
+	hex
+	default 0x2a
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+
 config MAINBOARD_DIR
 	string
 	default "lenovo/t440p"
diff --git a/src/mainboard/lenovo/t440p/cmos.layout b/src/mainboard/lenovo/t440p/cmos.layout
index 9c09104d55..be0b5031bd 100644
--- a/src/mainboard/lenovo/t440p/cmos.layout
+++ b/src/mainboard/lenovo/t440p/cmos.layout
@@ -73,6 +73,9 @@ entries
 #437        3        r       0        unused
 440          8       h       0        volume
 
+# VBOOT
+448          128     r       0        vbnv
+
 # coreboot config options: check sums
 984          16      h       0        check_sum
 
diff --git a/src/mainboard/lenovo/t440p/vboot-rwab.fmd b/src/mainboard/lenovo/t440p/vboot-rwab.fmd
new file mode 100644
index 0000000000..1747c0e708
--- /dev/null
+++ b/src/mainboard/lenovo/t440p/vboot-rwab.fmd
@@ -0,0 +1,34 @@
+FLASH@0xff400000 0xc00000 {
+	SI_ALL@0x0 0x500000 {
+		SI_DESC@0x0 0x1000
+		SI_GBE@0x1000 0x2000
+		SI_ME
+	}
+	SI_BIOS@0x500000 0x700000 {
+		RW_SECTION_A 0x280000 {
+			VBLOCK_A 0x10000
+			FW_MAIN_A(CBFS)
+			RW_FWID_A 0x40
+		}
+		RW_SECTION_B 0x280000 {
+			VBLOCK_B 0x10000
+			FW_MAIN_B(CBFS)
+			RW_FWID_B 0x40
+		}
+		UNIFIED_MRC_CACHE@0x500000 0x20000 {
+			RECOVERY_MRC_CACHE@0x0 0x10000
+			RW_MRC_CACHE@0x10000 0x10000
+		}
+		RW_VPD(PRESERVE) 0x1000
+		SMMSTORE(PRESERVE)@0x521000 0x40000
+
+		WP_RO {
+			FMAP 0x800
+			RO_FRID 0x40
+			RO_PADDING 0x7c0
+			RO_VPD(PRESERVE) 0x1000
+			GBB 0x1e000
+			COREBOOT(CBFS)
+		}
+	}
+}
diff --git a/src/mainboard/lenovo/t530/Kconfig b/src/mainboard/lenovo/t530/Kconfig
index 04b752804c..233d4d3f60 100644
--- a/src/mainboard/lenovo/t530/Kconfig
+++ b/src/mainboard/lenovo/t530/Kconfig
@@ -28,6 +28,25 @@ config BOARD_LENOVO_BASEBOARD_T530
 
 if BOARD_LENOVO_BASEBOARD_T530
 
+config VBOOT
+	select VBOOT_VBNV_CMOS
+	select GBB_FLAG_DISABLE_LID_SHUTDOWN
+	select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_FWMP
+	select HAS_RECOVERY_MRC_CACHE
+
+config VBOOT_SLOTS_RW_AB
+	default y
+
+config VBOOT_VBNV_OFFSET
+	hex
+	default 0x2a
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+
 config VARIANT_DIR
 	string
 	default "t530" if BOARD_LENOVO_T530
diff --git a/src/mainboard/lenovo/t530/cmos.layout b/src/mainboard/lenovo/t530/cmos.layout
index 3400a4d4c7..0c8c546e11 100644
--- a/src/mainboard/lenovo/t530/cmos.layout
+++ b/src/mainboard/lenovo/t530/cmos.layout
@@ -81,6 +81,9 @@ entries
 
 440          8       h       0        volume
 
+# VBOOT
+448          128     r       0        vbnv
+
 # SandyBridge MRC Scrambler Seed values
 896         32        r       0        mrc_scrambler_seed
 928         32        r       0        mrc_scrambler_seed_s3
diff --git a/src/mainboard/lenovo/t530/vboot-rwab.fmd b/src/mainboard/lenovo/t530/vboot-rwab.fmd
new file mode 100644
index 0000000000..1747c0e708
--- /dev/null
+++ b/src/mainboard/lenovo/t530/vboot-rwab.fmd
@@ -0,0 +1,34 @@
+FLASH@0xff400000 0xc00000 {
+	SI_ALL@0x0 0x500000 {
+		SI_DESC@0x0 0x1000
+		SI_GBE@0x1000 0x2000
+		SI_ME
+	}
+	SI_BIOS@0x500000 0x700000 {
+		RW_SECTION_A 0x280000 {
+			VBLOCK_A 0x10000
+			FW_MAIN_A(CBFS)
+			RW_FWID_A 0x40
+		}
+		RW_SECTION_B 0x280000 {
+			VBLOCK_B 0x10000
+			FW_MAIN_B(CBFS)
+			RW_FWID_B 0x40
+		}
+		UNIFIED_MRC_CACHE@0x500000 0x20000 {
+			RECOVERY_MRC_CACHE@0x0 0x10000
+			RW_MRC_CACHE@0x10000 0x10000
+		}
+		RW_VPD(PRESERVE) 0x1000
+		SMMSTORE(PRESERVE)@0x521000 0x40000
+
+		WP_RO {
+			FMAP 0x800
+			RO_FRID 0x40
+			RO_PADDING 0x7c0
+			RO_VPD(PRESERVE) 0x1000
+			GBB 0x1e000
+			COREBOOT(CBFS)
+		}
+	}
+}
diff --git a/src/mainboard/lenovo/x131e/Kconfig b/src/mainboard/lenovo/x131e/Kconfig
index 2cf3a8f95d..352be84050 100644
--- a/src/mainboard/lenovo/x131e/Kconfig
+++ b/src/mainboard/lenovo/x131e/Kconfig
@@ -21,6 +21,25 @@ config BOARD_SPECIFIC_OPTIONS
 	select SERIRQ_CONTINUOUS_MODE
 	select INTEL_GMA_HAVE_VBT
 
+config VBOOT
+	select VBOOT_VBNV_CMOS
+	select GBB_FLAG_DISABLE_LID_SHUTDOWN
+	select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_FWMP
+	select HAS_RECOVERY_MRC_CACHE
+
+config VBOOT_SLOTS_RW_AB
+	default y
+
+config VBOOT_VBNV_OFFSET
+	hex
+	default 0x2a
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+
 config MAINBOARD_DIR
 	string
 	default "lenovo/x131e"
diff --git a/src/mainboard/lenovo/x131e/cmos.layout b/src/mainboard/lenovo/x131e/cmos.layout
index 93c74fbdcc..41b8354dd3 100644
--- a/src/mainboard/lenovo/x131e/cmos.layout
+++ b/src/mainboard/lenovo/x131e/cmos.layout
@@ -79,6 +79,9 @@ entries
 
 440          8       h       0        volume
 
+# VBOOT
+448          128     r       0        vbnv
+
 # SandyBridge MRC Scrambler Seed values
 896         32        r       0        mrc_scrambler_seed
 928         32        r       0        mrc_scrambler_seed_s3
diff --git a/src/mainboard/lenovo/x131e/vboot-rwab.fmd b/src/mainboard/lenovo/x131e/vboot-rwab.fmd
new file mode 100644
index 0000000000..1747c0e708
--- /dev/null
+++ b/src/mainboard/lenovo/x131e/vboot-rwab.fmd
@@ -0,0 +1,34 @@
+FLASH@0xff400000 0xc00000 {
+	SI_ALL@0x0 0x500000 {
+		SI_DESC@0x0 0x1000
+		SI_GBE@0x1000 0x2000
+		SI_ME
+	}
+	SI_BIOS@0x500000 0x700000 {
+		RW_SECTION_A 0x280000 {
+			VBLOCK_A 0x10000
+			FW_MAIN_A(CBFS)
+			RW_FWID_A 0x40
+		}
+		RW_SECTION_B 0x280000 {
+			VBLOCK_B 0x10000
+			FW_MAIN_B(CBFS)
+			RW_FWID_B 0x40
+		}
+		UNIFIED_MRC_CACHE@0x500000 0x20000 {
+			RECOVERY_MRC_CACHE@0x0 0x10000
+			RW_MRC_CACHE@0x10000 0x10000
+		}
+		RW_VPD(PRESERVE) 0x1000
+		SMMSTORE(PRESERVE)@0x521000 0x40000
+
+		WP_RO {
+			FMAP 0x800
+			RO_FRID 0x40
+			RO_PADDING 0x7c0
+			RO_VPD(PRESERVE) 0x1000
+			GBB 0x1e000
+			COREBOOT(CBFS)
+		}
+	}
+}
diff --git a/src/mainboard/lenovo/x1_carbon_gen1/Kconfig b/src/mainboard/lenovo/x1_carbon_gen1/Kconfig
index 91ba20817c..f49805c36a 100644
--- a/src/mainboard/lenovo/x1_carbon_gen1/Kconfig
+++ b/src/mainboard/lenovo/x1_carbon_gen1/Kconfig
@@ -26,6 +26,25 @@ config BOARD_SPECIFIC_OPTIONS
 	# Workaround for EC/KBC IRQ1.
 	select SERIRQ_CONTINUOUS_MODE
 
+config VBOOT
+	select VBOOT_VBNV_CMOS
+	select GBB_FLAG_DISABLE_LID_SHUTDOWN
+	select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_FWMP
+	select HAS_RECOVERY_MRC_CACHE
+
+config VBOOT_SLOTS_RW_AB
+	default y
+
+config VBOOT_VBNV_OFFSET
+	hex
+	default 0x2a
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+
 config MAINBOARD_DIR
 	string
 	default "lenovo/x1_carbon_gen1"
diff --git a/src/mainboard/lenovo/x1_carbon_gen1/cmos.layout b/src/mainboard/lenovo/x1_carbon_gen1/cmos.layout
index bb252610c1..55a8a58962 100644
--- a/src/mainboard/lenovo/x1_carbon_gen1/cmos.layout
+++ b/src/mainboard/lenovo/x1_carbon_gen1/cmos.layout
@@ -80,6 +80,9 @@ entries
 
 440          8       h       0        volume
 
+# VBOOT
+448         128      r        0        vbnv
+
 # SandyBridge MRC Scrambler Seed values
 896         32        r       0        mrc_scrambler_seed
 928         32        r       0        mrc_scrambler_seed_s3
diff --git a/src/mainboard/lenovo/x1_carbon_gen1/vboot-rwab.fmd b/src/mainboard/lenovo/x1_carbon_gen1/vboot-rwab.fmd
new file mode 100644
index 0000000000..1747c0e708
--- /dev/null
+++ b/src/mainboard/lenovo/x1_carbon_gen1/vboot-rwab.fmd
@@ -0,0 +1,34 @@
+FLASH@0xff400000 0xc00000 {
+	SI_ALL@0x0 0x500000 {
+		SI_DESC@0x0 0x1000
+		SI_GBE@0x1000 0x2000
+		SI_ME
+	}
+	SI_BIOS@0x500000 0x700000 {
+		RW_SECTION_A 0x280000 {
+			VBLOCK_A 0x10000
+			FW_MAIN_A(CBFS)
+			RW_FWID_A 0x40
+		}
+		RW_SECTION_B 0x280000 {
+			VBLOCK_B 0x10000
+			FW_MAIN_B(CBFS)
+			RW_FWID_B 0x40
+		}
+		UNIFIED_MRC_CACHE@0x500000 0x20000 {
+			RECOVERY_MRC_CACHE@0x0 0x10000
+			RW_MRC_CACHE@0x10000 0x10000
+		}
+		RW_VPD(PRESERVE) 0x1000
+		SMMSTORE(PRESERVE)@0x521000 0x40000
+
+		WP_RO {
+			FMAP 0x800
+			RO_FRID 0x40
+			RO_PADDING 0x7c0
+			RO_VPD(PRESERVE) 0x1000
+			GBB 0x1e000
+			COREBOOT(CBFS)
+		}
+	}
+}
diff --git a/src/mainboard/lenovo/x230/Kconfig b/src/mainboard/lenovo/x230/Kconfig
index e7edf6bb61..bf70950532 100644
--- a/src/mainboard/lenovo/x230/Kconfig
+++ b/src/mainboard/lenovo/x230/Kconfig
@@ -27,6 +27,25 @@ config BOARD_SPECIFIC_OPTIONS
 	# Workaround for EC/KBC IRQ1.
 	select SERIRQ_CONTINUOUS_MODE
 
+config VBOOT
+	select VBOOT_VBNV_CMOS
+	select GBB_FLAG_DISABLE_LID_SHUTDOWN
+	select GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
+	select GBB_FLAG_DISABLE_FWMP
+	select HAS_RECOVERY_MRC_CACHE
+
+config VBOOT_SLOTS_RW_AB
+	default y
+
+config VBOOT_VBNV_OFFSET
+	hex
+	default 0x2a
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwab.fmd" if VBOOT
+
 config MAINBOARD_DIR
 	string
 	default "lenovo/x230"
diff --git a/src/mainboard/lenovo/x230/cmos.layout b/src/mainboard/lenovo/x230/cmos.layout
index 27197fb4b8..99034009a4 100644
--- a/src/mainboard/lenovo/x230/cmos.layout
+++ b/src/mainboard/lenovo/x230/cmos.layout
@@ -80,6 +80,9 @@ entries
 
 440          8       h       0        volume
 
+# VBOOT
+448          128     r       0        vbnv
+
 # SandyBridge MRC Scrambler Seed values
 896         32        r       0        mrc_scrambler_seed
 928         32        r       0        mrc_scrambler_seed_s3
diff --git a/src/mainboard/lenovo/x230/vboot-rwab.fmd b/src/mainboard/lenovo/x230/vboot-rwab.fmd
new file mode 100644
index 0000000000..1747c0e708
--- /dev/null
+++ b/src/mainboard/lenovo/x230/vboot-rwab.fmd
@@ -0,0 +1,34 @@
+FLASH@0xff400000 0xc00000 {
+	SI_ALL@0x0 0x500000 {
+		SI_DESC@0x0 0x1000
+		SI_GBE@0x1000 0x2000
+		SI_ME
+	}
+	SI_BIOS@0x500000 0x700000 {
+		RW_SECTION_A 0x280000 {
+			VBLOCK_A 0x10000
+			FW_MAIN_A(CBFS)
+			RW_FWID_A 0x40
+		}
+		RW_SECTION_B 0x280000 {
+			VBLOCK_B 0x10000
+			FW_MAIN_B(CBFS)
+			RW_FWID_B 0x40
+		}
+		UNIFIED_MRC_CACHE@0x500000 0x20000 {
+			RECOVERY_MRC_CACHE@0x0 0x10000
+			RW_MRC_CACHE@0x10000 0x10000
+		}
+		RW_VPD(PRESERVE) 0x1000
+		SMMSTORE(PRESERVE)@0x521000 0x40000
+
+		WP_RO {
+			FMAP 0x800
+			RO_FRID 0x40
+			RO_PADDING 0x7c0
+			RO_VPD(PRESERVE) 0x1000
+			GBB 0x1e000
+			COREBOOT(CBFS)
+		}
+	}
+}