mb/lenovo/x201: Add VBOOT support

Tested with CONFIG_H8_FN_KEY_AS_VBOOT_RECOVERY_SW to switch between
RW_A and recovery, which works quite well as a developer mode to test
RW_A with the COREBOOT slot as a fallback.

Change-Id: I9d524988e991457032f63a947606d1b3581de5e7
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35959
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/mainboard/lenovo/x201/Kconfig

@@ -23,6 +23,25 @@ config BOARD_SPECIFIC_OPTIONS
 	select MAINBOARD_USES_IFD_GBE_REGION
 	select H8_HAS_BAT_TRESHOLDS_IMPL
 
+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_A
+	default y
+
+config VBOOT_VBNV_OFFSET
+	hex
+	default 0x2a
+
+config FMDFILE
+	string
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/vboot-rwa.fmd" if VBOOT
+
 config MAINBOARD_DIR
 	string
 	default lenovo/x201

src/mainboard/lenovo/x201/cmos.layout

@@ -78,6 +78,9 @@ entries
 #427         5       r       0       unused
 432          8       h       0        volume
 
+# VBOOT
+448         128       r      0        vbnv
+
 # coreboot config options: check sums
 984         16       h       0        check_sum
 #1000        24       r       0        amd_reserved

src/mainboard/lenovo/x201/vboot-rwa.fmd

@@ -0,0 +1,30 @@
+FLASH@0xff800000 0x800000 {
+	SI_ALL@0x0 0x500000 {
+		SI_DESC@0x0 0x1000
+		SI_GBE@0x1000 0x2000
+		SI_ME@0x3000 0x4ed000
+	}
+	SI_BIOS@0x500000 0x300000 {
+		RW_SECTION_A 0x180000 {
+			VBLOCK_A 0x10000
+			FW_MAIN_A(CBFS)
+			RW_FWID_A 0x40
+		}
+		UNIFIED_MRC_CACHE 0x20000 {
+			RECOVERY_MRC_CACHE 0x10000
+			RW_MRC_CACHE 0x10000
+		}
+		RW_VPD(PRESERVE) 0x1000
+		SMMSTORE(PRESERVE) 0x40000
+		WP_RO {
+			RO_VPD(PRESERVE) 0x1000
+			RO_SECTION {
+				FMAP 0x800
+				RO_FRID 0x40
+				RO_PADDING 0x7c0
+				GBB 0x1e000
+				COREBOOT(CBFS)
+			}
+		}
+	}
+}