[PATCH 8/8] x86: coreboot: Enable support for CBFS

[Simon Glass]

This is normally used with coreboot, so enable support for it in the
coreboot builds.

Add an example to show how it is used.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 configs/coreboot64_defconfig    |  1 +
 configs/coreboot_defconfig      |  1 +
 doc/board/coreboot/coreboot.rst | 34 +++++++++++++++++++++++++++++++++
 3 files changed, 36 insertions(+)

diff --git a/configs/coreboot64_defconfig b/configs/coreboot64_defconfig
index 602465175d20..55064d1ce66f 100644
--- a/configs/coreboot64_defconfig
+++ b/configs/coreboot64_defconfig
@@ -56,3 +56,4 @@ CONFIG_SOUND=y
 CONFIG_SOUND_I8254=y
 CONFIG_CONSOLE_SCROLL_LINES=5
 # CONFIG_GZIP is not set
+CONFIG_CMD_CBFS=y
diff --git a/configs/coreboot_defconfig b/configs/coreboot_defconfig
index 735cd6eb4c22..77214f1b4c06 100644
--- a/configs/coreboot_defconfig
+++ b/configs/coreboot_defconfig
@@ -66,3 +66,4 @@ CONFIG_CONSOLE_SCROLL_LINES=5
 CONFIG_CMD_DHRYSTONE=y
 # CONFIG_GZIP is not set
 CONFIG_SMBIOS_PARSER=y
+CONFIG_CMD_CBFS=y
diff --git a/doc/board/coreboot/coreboot.rst b/doc/board/coreboot/coreboot.rst
index d09dfc553c87..11e461a2ae0b 100644
--- a/doc/board/coreboot/coreboot.rst
+++ b/doc/board/coreboot/coreboot.rst
@@ -83,6 +83,40 @@ build in `$CBDIR`::
       -device ide-hd,drive=disk,bus=ahci.0 \
 
 
+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
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2.41.0.487.g6d72f3e995-goog