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-rw-r--r--src/mainboard/google/kukui/chromeos.fmd55
1 files changed, 35 insertions, 20 deletions
diff --git a/src/mainboard/google/kukui/chromeos.fmd b/src/mainboard/google/kukui/chromeos.fmd
index d183273549..2635854866 100644
--- a/src/mainboard/google/kukui/chromeos.fmd
+++ b/src/mainboard/google/kukui/chromeos.fmd
@@ -1,30 +1,45 @@
-FLASH@0x0 0x800000 {
- WP_RO@0x0 0x200000 {
- RO_SECTION@0x0 0x1f8000 {
- BOOTBLOCK@0 32K
- FMAP@0x8000 0x1000
- COREBOOT(CBFS)@0x9000 0x1ec000
+# Firmware Layout Description for Chrome OS.
+#
+# The size and address of every section must be aligned to at least 4K, except:
+# RO_FRID, RW_FWID*, GBB, or any unused / padding / CBFS type sections.
+#
+# 'FMAP' may be found by binary search so its starting address should be better
+# aligned to larger values.
+#
+# For sections to be preserved on update, add (PRESERVE) to individual sections
+# instead of a group section; otherwise the preserved data may be wrong if you
+# resize or reorder sections inside a group.
+
+FLASH@0x0 8M {
+ WP_RO@0x0 4M {
+ RO_SECTION {
+ BOOTBLOCK 128K
+ FMAP 4K
+ COREBOOT(CBFS)
GBB 0x2f00
RO_FRID 0x100
}
- RO_VPD(PRESERVE)@0x1f8000 0x8000
+ RO_VPD(PRESERVE) 32K # At least 16K.
}
- RW_SECTION_A@0x200000 0x7c000 {
- VBLOCK_A@0x0 0x2000
- FW_MAIN_A(CBFS) 0x79f00
+ RW_SECTION_A 1500K {
+ VBLOCK_A 8K
+ FW_MAIN_A(CBFS)
RW_FWID_A 0x100
}
- RW_SHARED@0x27c000 0x1000 {
- SHARED_DATA@0x0 0x1000
+ RW_MISC 36K {
+ RW_VPD(PRESERVE) 16K # At least 8K.
+ RW_NVRAM(PRESERVE) 8K
+ RW_DDR_TRAINING(PRESERVE) 8K
+ RW_ELOG(PRESERVE) 4K # ELOG driver hard-coded size in 4K.
}
- RW_NVRAM(PRESERVE)@0x27d000 0x2000
- # ELOG driver has hard-coded the size to 4k.
- RW_ELOG(PRESERVE)@0x27f000 0x1000
- RW_SECTION_B@0x280000 0x7c000 {
- VBLOCK_B@0x0 0x2000
- FW_MAIN_B(CBFS) 0x79f00
+ RW_SECTION_B 1500K {
+ VBLOCK_B 8K
+ FW_MAIN_B(CBFS)
RW_FWID_B 0x100
}
- RW_VPD(PRESERVE)@0x2fc000 0x4000
- RW_LEGACY(CBFS)@0x300000 0x100000
+ RW_SHARED 36K { # Will be force updated on recovery.
+ SHARED_DATA 4K # 4K or less for netboot params.
+ RW_UNUSED
+ }
+ RW_LEGACY(CBFS) 1M # Minimal 1M.
}