[coreboot-gerrit] Change in coreboot[master]: mb/google/reef: add default non-ChromeOS FMAP

[Matt DeVillier (Code Review)]

Matt DeVillier has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/40907 )

Change subject: mb/google/reef: add default non-ChromeOS FMAP
......................................................................

mb/google/reef: add default non-ChromeOS FMAP

Add a FMAP which supports SMMSTORE and non-ChromeOS payloads,
since Apollo Lake-based devices like Reef cannot use an
automatically-generated FMAP due to strict layout requirements.

Change-Id: If570f92f4f81c0e29777c87756fc5e45af549064
Signed-off-by: Matt DeVillier 
---
M src/mainboard/google/reef/Kconfig
A src/mainboard/google/reef/default.fmd
2 files changed, 27 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/07/40907/1

diff --git a/src/mainboard/google/reef/Kconfig b/src/mainboard/google/reef/Kconfig
index 5d782b1..6b970b2 100644
--- a/src/mainboard/google/reef/Kconfig
+++ b/src/mainboard/google/reef/Kconfig
@@ -100,4 +100,7 @@
    default 0xe00 if CHROMEOS
    default 0xc00

+config FMDFILE
+	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/default.fmd" if !CHROMEOS
+
 endif # BOARD_GOOGLE_REEF
diff --git a/src/mainboard/google/reef/default.fmd b/src/mainboard/google/reef/default.fmd
new file mode 100644
index 0000000..6e6b64f
--- /dev/null
+++ b/src/mainboard/google/reef/default.fmd
@@ -0,0 +1,24 @@
+FLASH 16M {
+	SI_DESC@0x0 0x1000
+	SI_BIOS@0x1000 0xf6f000 {
+		IFWI@0x0 0x1ff000
+		# SMMSTORE requires 64k alignment
+		SMMSTORE@0xa5e000 0x40000
+		RW_MRC_CACHE 0x10000
+		FMAP 0x300
+		COREBOOT(CBFS)
+		BIOS_UNUSABLE 0x4f000
+	}
+	DEVICE_EXTENSION@0xf7f000 0x80000
+	# Currently, it is required that the BIOS region be a multiple of 8KiB.
+	# This is required so that the recovery mechanism can find SIGN_CSE
+	# region aligned to 4K at the center of BIOS region. Since the
+	# descriptor at the beginning uses 4K and BIOS starts at an offset of
+	# 4K, a hole of 4K is created towards the end of the flash to compensate
+	# for the size requirement of BIOS region.
+	# FIT tool thus creates descriptor with following regions:
+	# Descriptor --> 0 to 4K
+	# BIOS       --> 4K to 0xf7f000
+	# Device ext --> 0xf7f000 to 0xfff000
+	UNUSED_HOLE@0xfff000 0x1000
+}