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authorMike Frysinger <vapier@gentoo.org>2009-09-30 15:29:58 -0400
committerWolfgang Denk <wd@denx.de>2009-10-18 22:53:18 +0200
commit6dab6add2d8ee80905234b326abc3de11be1d178 (patch)
tree6a05c9083464fc39367ebcc6af918e5f4c8787ac /README
parent78f4ca7976748159080c9d920d5eb542d1b32d4f (diff)
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env: only build env_embedded and envcrc when needed
The env code is protected by the ENV_IS_EMBEDDED define, so attempting to compile the code when this isn't defined is pointless. Now that the env headers have unified around CONFIG_ENV_IS_EMBEDDED, convert the build system to only build the env objects when this is enabled. And now that the env code is conditionally compiled, we can drop the source code checks. For people who want to extract the environment manually, add a new option CONFIG_BUILD_ENVCRC that only enables the envcrc utility. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'README')
-rw-r--r--README5
1 files changed, 5 insertions, 0 deletions
diff --git a/README b/README
index dee0e67..744f6bf 100644
--- a/README
+++ b/README
@@ -2305,6 +2305,11 @@ 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.