diff options
Diffstat (limited to 'src/mainboard/google/geralt/chromeos.fmd')
| -rw-r--r-- | src/mainboard/google/geralt/chromeos.fmd | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/mainboard/google/geralt/chromeos.fmd b/src/mainboard/google/geralt/chromeos.fmd new file mode 100644 index 0000000000..a8c4dfe0af --- /dev/null +++ b/src/mainboard/google/geralt/chromeos.fmd @@ -0,0 +1,46 @@ +# 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_GSCVD 8K + RO_VPD(PRESERVE) 32K # At least 16K. + } + RW_SECTION_A 1500K { + VBLOCK_A 8K + FW_MAIN_A(CBFS) + RW_FWID_A 0x100 + } + RW_MISC 36K { + RW_VPD(PRESERVE) 16K # At least 8K. + RW_NVRAM(PRESERVE) 8K + RW_MRC_CACHE(PRESERVE) 8K + RW_ELOG(PRESERVE) 4K # ELOG driver hard-coded size in 4K. + } + RW_SECTION_B 1500K { + VBLOCK_B 8K + FW_MAIN_B(CBFS) + RW_FWID_B 0x100 + } + 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. +} |