README: Document CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
This option is intended to be set by boards which will set the
board_name and board_rev environment variables. These are to be used
when the U-Boot binary can support more than one board type at run-time
and the user needs an easy way (for example for scripting to determine
what device tree to load) to determine what board they are on.
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/README b/README
index 22fd6b7..06c1b15 100644
--- a/README
+++ b/README
@@ -2311,6 +2311,12 @@
- CONFIG_SYS_VENDOR
- CONFIG_SYS_SOC
+ CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+
+ Define this in order to add variables describing certain
+ run-time determined information about the hardware to the
+ environment. These will be named board_name, board_rev.
+
- DataFlash Support:
CONFIG_HAS_DATAFLASH