Prepare v2015.07-rc2

[karo-tx-uboot.git] / doc / README.fdt-control

diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index d8fe4a826f20d41335067b6c3a251d1a12d4dfd8..e6d5ed0bb61d664b0c7938c0649262f545d36fad 100644 (file)
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -171,6 +171,22 @@ After board configuration is done, fdt supported u-boot can be build in two ways
     $ make DEVICE_TREE=<dts-file-name>
 
 
+Configuration Options
+---------------------
+
+A number of run-time configuration options are provided in the /config node
+of the control device tree. You can access these using fdtdec_get_config_int(),
+fdtdec_get_config_bool() and fdtdec_get_config_string().
+
+Available options are:
+
+silent-console
+       If present and non-zero, the console is silenced by default on boot.
+
+no-keyboard
+       Tells U-Boot not to expect an attached keyboard with a VGA console
+
+
 Limitations
 -----------