rockchip:usb: add a simple readme for rockusb

[people/ms/u-boot.git] / doc / README.mxc_hab

diff --git a/doc/README.mxc_hab b/doc/README.mxc_hab
index e9340dd14cd4a6f687116712f5cee86a7513f555..c1f8ded5ee15ed00f2c93f6aeb88880f8add7e3b 100644 (file)
--- a/doc/README.mxc_hab
+++ b/doc/README.mxc_hab
@@ -1,7 +1,12 @@
 High Assurance Boot (HAB) for i.MX6 CPUs
 
-To authenticate U-Boot only by the CPU there is no code required in
-U-Boot itself. However, the U-Boot image to be programmed into the
+To enable the authenticated or encrypted boot mode of U-Boot, it is
+required to set the proper configuration for the target board. This
+is done by adding the following configuration in the defconfig file:
+
+CONFIG_SECURE_BOOT=y
+
+In addition, the U-Boot image to be programmed into the
 boot media needs to be properly constructed, i.e. it must contain a
 proper Command Sequence File (CSF).
 
@@ -69,6 +74,7 @@ CONFIG_SECURE_BOOT
 CONFIG_SYS_FSL_SEC_COMPAT    4 /* HAB version */
 CONFIG_FSL_CAAM
 CONFIG_CMD_DEKBLOB
+CONFIG_SYS_FSL_SEC_LE
 
 Note: The encrypted boot feature is only supported by HABv4 or
 greater.