Support passing of OF flat trees to the kernel.
Patch by Pantelis Antoniou, 04 Sep 2005
diff --git a/README b/README
index a45ed6d..b0e1fb2 100644
--- a/README
+++ b/README
@@ -399,6 +399,20 @@
 		expect it to be in bytes, others in MB.
 		Define CONFIG_MEMSIZE_IN_BYTES to make it in bytes.
 
+		CONFIG_OF_FLAT_TREE
+
+		New kernel versions are expecting firmware settings to be
+		passed using flat open firmware trees.
+		The environment variable "disable_of", when set, disables this
+		functionality.
+
+		CONFIG_OF_FLAT_TREE_MAX_SIZE
+
+		The maximum size of the constructed OF tree.
+
+		OF_CPU - The proper name of the cpus node.
+		OF_TBCLK - The timebase frequency.
+
 - Serial Ports:
 		CFG_PL010_SERIAL