openwrt_archive/target/linux/lantiq/patches-4.4/0121-MIPS-lantiq-make-it-possible-to-build-in-no-device-t.patch
John Crispin e8b04535ad lantiq: use upstream mechanism to append device tree file
Instead of using our patch-dtb program just place the device tree
behind the kernel binary and then let the in kernel mechanism fetch it.
This also adds support for having the device tree file in the boot
loader.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 49050
2016-03-20 14:41:54 +00:00

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Diff

From 8cfe01de7d5c974165c1383fcc9e1dad6953341d Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 19 Mar 2016 17:06:00 +0100
Subject: [PATCH 2/2] MIPS: lantiq: make it possible to build in no device tree
Now it is possible to build in no device tree at all and depend on the
boot loader providing one or someone concatenating a device tree to the
end of the image.
This was copied from arch/mips/bmips/Kconfig
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
arch/mips/lantiq/Kconfig | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
--- a/arch/mips/lantiq/Kconfig
+++ b/arch/mips/lantiq/Kconfig
@@ -27,7 +27,17 @@ config SOC_FALCON
endchoice
choice
- prompt "Devicetree"
+ prompt "Built-in device tree"
+ help
+ Legacy bootloaders do not pass a DTB pointer to the kernel, so
+ if a "wrapper" is not being used, the kernel will need to include
+ a device tree that matches the target board.
+
+ The builtin DTB will only be used if the firmware does not supply
+ a valid DTB.
+
+config LANTIQ_DT_NONE
+ bool "None"
config DT_EASY50712
bool "Easy50712"