UPSTREAM: scripts/dtc: Update to upstream version v1.4.3

Using the update-dtc-source.sh script from Linux v4.14-rc1 import the
portions of dtc that we require. We bring in update-dtc-source.sh and

UPSTREAM: scripts/dtc: Update to upstream version v1.4.3

Using the update-dtc-source.sh script from Linux v4.14-rc1 import the
portions of dtc that we require. We bring in update-dtc-source.sh and
scripts/dtc/Makefile from Linux v4.14-rc1. Rework DTC_FLAGS handling to
not require a test.

Change-Id: Id69453c629574df1be4cd3bb0f0f0e86516eeb47
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit c0e032e0090d6541549b19cc47e06ccd1f302893)

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kbuild: update DTC warning settings for bus and node/property name checks

Recent commits of DTC introduced new warnings checking PCI and simple
buses, unit address formatting, and stricter node and

kbuild: update DTC warning settings for bus and node/property name checks

Recent commits of DTC introduced new warnings checking PCI and simple
buses, unit address formatting, and stricter node and property name
checking. Disable the new DTC warnings by default. As before,
warnings are enabled with W=*. The strict node and property name
checks are a bit subjective, so they are only enabled for W=2.
(This policy reflects the commit 8654cb8d0371 of Linux.)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

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kbuild: turn of dtc unit address warnings by default

DTC 1.4.2 or later checks DT unit-address without reg property and
vice-versa, and generates lots of warnings. Fixing DT files will
take for a w

kbuild: turn of dtc unit address warnings by default

DTC 1.4.2 or later checks DT unit-address without reg property and
vice-versa, and generates lots of warnings. Fixing DT files will
take for a while. Until then, let's turn off the check unless
building with W=*.

Introduce a new helper dtc-option to check if the option is supported
in order to suppress warnings on older versions.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

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scripts/Makefile* Add SPDX-License-Identifier tag

A general best practice for SPDX is that Makefiles should have an
identifier, add these as everything else is currently covered.

Signed-off-by: Tom

scripts/Makefile* Add SPDX-License-Identifier tag

A general best practice for SPDX is that Makefiles should have an
identifier, add these as everything else is currently covered.

Signed-off-by: Tom Rini <trini@konsulko.com>

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kbuild: do not hide clang warnings during build with W=1

These lines originate in Linux; it looks like Linux folks chose to
hide bunch of warnings reported by clang rather than fixing C code.

In U

kbuild: do not hide clang warnings during build with W=1

These lines originate in Linux; it looks like Linux folks chose to
hide bunch of warnings reported by clang rather than fixing C code.

In U-boot, warnings are being fixed thanks to Jeroen's great efforts.
Let's stop suppressing clang warnings.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Jeroen Hofstee <jeroen@myspectrum.nl>

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kbuild: move extra gcc checks to scripts/Makefile.extrawarn

This commit was imported from Linux Kernel:
commit a86fe353 written by me.

W=... provides extra gcc checks.

Having such code in scripts/

kbuild: move extra gcc checks to scripts/Makefile.extrawarn

This commit was imported from Linux Kernel:
commit a86fe353 written by me.

W=... provides extra gcc checks.

Having such code in scripts/Makefile.build results in the same flags
being added to KBUILD_CFLAGS multiple times becuase
scripts/Makefile.build is invoked every time Kbuild descends into
the subdirectories.

Since the top Makefile is already too cluttered, this commit moves
all of extra gcc check stuff to a new file scripts/Makefile.extrawarn,
which is included from the top Makefile.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

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