upl: Add support for writing a upl handoff
Universal Payload provides a standard way of handing off control between
two firmware phases. Add support for writing the handoff information from
a structure.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/boot/Kconfig b/boot/Kconfig
index 3010629..d5f1304 100644
--- a/boot/Kconfig
+++ b/boot/Kconfig
@@ -748,6 +748,7 @@
config UPL
bool "upl - Universal Payload Specification"
imply UPL_READ
+ imply UPL_WRITE
help
Provides support for UPL payloads and handoff information. U-Boot
supports generating and accepting handoff information. The mkimage
@@ -762,6 +763,13 @@
which can be used elsewhere in U-Boot. This is just the reading
implementation, useful for trying it out.
+config UPL_WRITE
+ bool "upl - Support writing a Universal Payload handoff"
+ help
+ Provides support for encoding a UPL-format payload from a C structure
+ so it can be passed to another program. This is just the writing
+ implementation, useful for trying it out.
+
endif # UPL
endif # BOOTSTD