[U-Boot] [PATCH 1/2] README: Document CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG

[Tom Rini]

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 at ti.com>
---
 README |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README b/README
index 69da2b8..430fc16 100644
--- a/README
+++ b/README
@@ -2309,6 +2309,12 @@ CBFS (Coreboot Filesystem) support
 		- 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
 
-- 
1.7.9.5