From 545dfd101400637219b7024ce0fc02728663380e Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Fri, 16 Oct 2015 08:44:51 +0800 Subject: env: export fdt_blob to the environment variable Export fdt_blob to the environment variable. So that we may use it to boot Linux. Signed-off-by: Thomas Chou Acked-by: Simon Glass --- doc/README.fdt-control | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'doc/README.fdt-control') diff --git a/doc/README.fdt-control b/doc/README.fdt-control index e6d5ed0..29fd56a 100644 --- a/doc/README.fdt-control +++ b/doc/README.fdt-control @@ -156,7 +156,10 @@ 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). +environment, for example (it will be ignored). After relocation, this +variable will be set to the address of the newly relocated fdt blob. +It is read-only and cannot be changed. It can optionally be used to +control the boot process of Linux with bootm/bootz commands. To use this, put something like this in your board header file: -- cgit v1.1