x86: coreboot: Update doc for CBFS access
Add an example to show how cbfs is used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[Removed CONFIG_CMD_CBFS from defconfig files]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/doc/board/coreboot/coreboot.rst b/doc/board/coreboot/coreboot.rst
index 0fe95af..21801a8 100644
--- a/doc/board/coreboot/coreboot.rst
+++ b/doc/board/coreboot/coreboot.rst
@@ -51,6 +51,40 @@
This has only been lightly tested.
+CBFS access
+-----------
+
+You can use the 'cbfs' commands to access the Coreboot filesystem::
+
+ => cbfsinit
+ => cbfsinfo
+
+ CBFS version: 0x31313132
+ ROM size: 0x100000
+ Boot block size: 0x4
+ CBFS size: 0xffdfc
+ Alignment: 64
+ Offset: 0x200
+
+ => cbfsls
+ size type name
+ ------------------------------------------
+ 32 cbfs header cbfs master header
+ 16720 17 fallback/romstage
+ 53052 17 fallback/ramstage
+ 398 raw config
+ 715 raw revision
+ 117 raw build_info
+ 4044 raw fallback/dsdt.aml
+ 640 cmos layout cmos_layout.bin
+ 17804 17 fallback/postcar
+ 335797 payload fallback/payload
+ 607000 null (empty)
+ 10752 bootblock bootblock
+
+ 12 file(s)
+
+ =>
Memory map
----------