u-boot.git/doc/README.fdt-control, branch v2017.09

Allow boards to initialize the DT at runtime.

2017-05-10T00:35:06+00:00

In some boards like the Raspberry Pi the initial bootloader will pass
a DT to the kernel. When using U-Boot as such kernel, the board code in
U-Boot should be able to provide U-Boot with this, already assembled
device tree blob.

This patch introduces a new config option CONFIG_OF_BOARD to use instead
of CONFIG_OF_EMBED or CONFIG_OF_SEPARATE which will initialize the DT
from a board-specific funtion instead of bundling one with U-Boot or as
a separated file. This allows boards like the Raspberry Pi to reuse the
device tree passed from the bootcode.bin and start.elf firmware
files, including the run-time selected device tree overlays.

Signed-off-by: Alex Deymo 
Reviewed-by: Simon Glass

doc: move documentation for /config node into a separate file

2017-03-20T22:04:35+00:00

This moves the description of the /config node from README.fdt-control
into a separate file doc/device-tree-bindings/config.txt.

Signed-off-by: Philipp Tomsich 
Reviewed-by: Simon Glass

Remove/update old generic-board documentation and warning

2016-05-27T19:39:50+00:00

Remove the warning from the Makefile, since boards that do not use generic
board will no longer build. Also update documentation.

Signed-off-by: Simon Glass 
Reviewed-by: Andreas Bießmann

env: export fdt_blob to the environment variable

2015-10-23T15:42:28+00:00

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

x86: video: Allow keyboard presence to be controlled by device tree

2015-04-17T01:27:40+00:00

At present a VGA console assumes a keyboard unless a CONFIG option is set.
This difference can be dealt with by a device tree option, allowing boards
that are otherwise the same to use the same configuration.

Signed-off-by: Simon Glass

fdt: Rename the DEV_TREE_BIN Makefile flag to to EXT_DTB

2014-06-19T15:18:56+00:00

This seems like a better name. This is a patch-up to the earlier commit
63b4b5b, and also removes a redundant Makefile change.

Signed-off-by: Simon Glass

fdt: Add DEV_TREE_BIN option to specify a device tree binary file

2014-06-11T20:25:46+00:00

In some cases, an externally-built device tree binary is required to be
attached to U-Boot. An example is when using image signing, since in that
case the .dtb file must include the public keys.

Add a DEV_TREE_BIN option to the Makefile, and update the documentation.

Usage is something like:

	make DEV_TREE_BIN=boot/am335x-boneblack-pubkey.dtb

Signed-off-by: Simon Glass

FDT: Fix DTC repository references

2014-06-05T18:44:56+00:00

The Device Tree Compiler (DTC) used to have its master
repository located on jdl.com.  While it is still there,
its official, new, shiny location is on kernel.org here:

    git://git.kernel.org/pub/scm/utils/dtc/dtc.git

Update a few references to point there instead.

Signed-off-by: Jon Loeliger 
Acked-by: Simon Glass

config: don't define CONFIG_ARCH_DEVICE_TREE

2013-08-02T22:30:11+00:00

Now that nothing uses CONFIG_ARCH_DEVICE_TREE, stop defining it.

Signed-off-by: Stephen Warren 
Acked-by: Simon Glass

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini