x86: samus: Add a target to boot through TPL
Add a version of samus which supports booting from TPL to SPL and then
to U-Boot. This allows TPL to select from an A or B SPL to support
verified boot with field upgrade.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/board/google/Kconfig b/board/google/Kconfig
index d98a5e8..679a0f1 100644
--- a/board/google/Kconfig
+++ b/board/google/Kconfig
@@ -52,6 +52,14 @@
Chrome OS EC connected on LPC, and it provides a 2560x1700 high
resolution touch-enabled LCD display.
+config TARGET_CHROMEBOOK_SAMUS_TPL
+ bool "Chromebook samus booting from TPL"
+ help
+ This is a version of Samus which boots into TPL, then to SPL and
+ U-Boot proper. This is useful where verified boot must select
+ between different A/B versions of SPL/U-Boot, to allow upgrading of
+ almost all U-Boot code in the field.
+
endchoice
source "board/google/chromebook_link/Kconfig"