env: allow people to force envcrc building

[u-boot.git] / README

diff --git a/README b/README
index 2cad44d5b246e4028b49eaf7eb56ff8569b4105f..cb088167419dc4af3d3d66c621c79e0d3c32126b 100644 (file)
--- a/README
+++ b/README
@@ -2563,6 +2563,11 @@ The following definitions that deal with the placement and management
 of environment data (variable area); in general, we support the
 following configurations:
 
+- CONFIG_BUILD_ENVCRC:
+
+       Builds up envcrc with the target environment so that external utils
+       may easily extract it and embed it in final U-Boot images.
+
 - CONFIG_ENV_IS_IN_FLASH:
 
        Define this if the environment is in flash memory.