Merge branch '2022-03-31-image-add-a-stage-pre-load' into next

To quote the author:
This series adds a stage pre-load before launching an image.  This stage
is used to read a header before the image and this header contains the
signature of the full image.  So u-boot may check the full image before
using any data of the image.

The support of this header is added to binman, and a command verify
checks the signature of a blob and set the u-boot env variable
"loadaddr_verified" to the beginning of the "real" image.

The support of this header is only added to binman, but it may also be
added to mkimage.

3 files changed, 7 insertions, 0 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 1b35fda64cc..8450fdb75c4 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -205,6 +205,7 @@ config SANDBOX
 	imply KEYBOARD
 	imply PHYSMEM
 	imply GENERATE_ACPI_TABLE
+	imply BINMAN
 
 config SH
 	bool "SuperH architecture"
diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
index 66b813faadb..826db26fc2b 100644
--- a/arch/sandbox/dts/sandbox.dtsi
+++ b/arch/sandbox/dts/sandbox.dtsi
@@ -7,6 +7,9 @@
 #define USB_CLASS_HUB			9
 
 / {
+	binman {
+	};
+
 	chosen {
 		stdout-path = "/serial";
 	};
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 3d206fdb3cf..05c1cd5e1a5 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -61,6 +61,9 @@
 		osd0 = "/osd";
 	};
 
+	binman {
+	};
+
 	config {
 		testing-bool;
 		testing-int = <123>;