X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;ds=sidebyside;f=doc%2FREADME.fdt-control;h=85bda035043497d8d23aed8a436e24d630c60937;hb=7e30ad8bf3c6f7768158ad994b9180c6906fa5da;hp=3f8bb5a670175088c0147e7d6d57cefc36c1a32d;hpb=bbb0b128c3956ac549471addc314702fbe0ace63;p=u-boot

diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index 3f8bb5a670..85bda03504 100644
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -144,6 +144,18 @@ and then flash image.bin onto your board.
 
 You cannot use both of these options at the same time.
 
+If you wish to put the fdt at a different address in memory, you can
+define the "fdtcontroladdr" environment variable. This is the hex
+address of the fdt binary blob, and will override either of the options.
+Be aware that this environment variable is checked prior to relocation,
+when only the compiled-in environment is available. Therefore it is not
+possible to define this variable in the saved SPI/NAND flash
+environment, for example (it will be ignored).
+
+To use this, put something like this in your board header file:
+
+#define CONFIG_EXTRA_ENV_SETTINGS	"fdtcontroladdr=10000\0"
+
 
 Limitations
 -----------