X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2FREADME.fdt-control;h=e6d5ed0bb61d664b0c7938c0649262f545d36fad;hb=01cafcedbfbefef6c975d7bbe704994bf3357ebd;hp=be92d7ae88384ac784a9c30ddd8c640277e01ee5;hpb=63b4b5bae52e48528876e13e858ef934ac2e4a3b;p=u-boot

diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index be92d7ae88..e6d5ed0bb6 100644
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -143,9 +143,9 @@ specify the file to read.
 You cannot use more than one of these options at the same time.
 
 To use a device tree file that you have compiled yourself, pass
-DEV_TREE_BIN=<filename> to 'make', as in:
+EXT_DTB=<filename> to 'make', as in:
 
-	make DEV_TREE_BIN=boot/am335x-boneblack-pubkey.dtb
+	make EXT_DTB=boot/am335x-boneblack-pubkey.dtb
 
 Then U-Boot will copy that file to u-boot.dtb, put it in the .img file
 if used, and u-boot-dtb.bin.
@@ -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
 -----------