[U-Boot] [PATCH 0/8] rely on latest dtc, simplify

[U-Boot] [PATCH 0/8] rely on latest dtc, simplify

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

This is a series of patches which simplifies the rules to build *.dts in
U-Boot by relying on features in the latest dtc. The include rules are
made more consistent between cpp (when processing *.dts) and dtc. The cpp
flags are made more consistent with the way the kernel processes *.dts to
allow better portability of *.dts between the two.

Stephen Warren (8):
  xilinx: move microblaze-generic .dts to standard location
  dts/Makefile: simplify dtc invocation
  dts/Makefile: unify cpp/dtc include paths
  dt: don't use ARCH_CPU_DTS
  dts/Makefile: don't define ARCH_CPU_DTS, BOARD_DTS
  config: don't define CONFIG_ARCH_DEVICE_TREE
  dts/Makefile: don't use cpp -P
  dts/Makefile: pass -undef -D__DTS__ to cpp

 .gitignore                                         |  1 +
 arch/arm/cpu/armv7/tegra114/config.mk              | 19 ----------------
 arch/arm/cpu/armv7/tegra20/config.mk               | 26 ----------------------
 arch/arm/cpu/armv7/tegra30/config.mk               | 19 ----------------
 arch/microblaze/config.mk                          |  2 --
 arch/x86/cpu/coreboot/config.mk                    | 23 -------------------
 board/chromebook-x86/dts/link.dts                  |  2 +-
 board/samsung/dts/exynos5250-smdk5250.dts          |  2 +-
 board/samsung/dts/exynos5250-snow.dts              |  2 +-
 .../microblaze.dts => dts/microblaze-generic.dts}  |  0
 board/xilinx/dts/microblaze.dts                    |  1 -
 doc/README.fdt-control                             |  3 +--
 dts/Makefile                                       | 25 +++++++++------------
 include/configs/exynos5250-dt.h                    |  1 -
 include/configs/microblaze-generic.h               |  2 +-
 15 files changed, 16 insertions(+), 112 deletions(-)
 delete mode 100644 arch/arm/cpu/armv7/tegra114/config.mk
 delete mode 100644 arch/arm/cpu/armv7/tegra20/config.mk
 delete mode 100644 arch/arm/cpu/armv7/tegra30/config.mk
 delete mode 100644 arch/x86/cpu/coreboot/config.mk
 rename board/xilinx/{microblaze-generic/dts/microblaze.dts => dts/microblaze-generic.dts} (100%)
 delete mode 100644 board/xilinx/dts/microblaze.dts

-- 
1.8.1.5

[U-Boot] [PATCH 1/8] xilinx: move microblaze-generic .dts to standard location

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

Aside from microblaze, all other SoCs/boards/vendors store their DT files
in board/$vendor/dts/$soc-$board.dts. Move microblaze-generic.dts to this
location for consistency.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 .../dts/microblaze.dts => dts/microblaze-generic.dts}                   | 0
 board/xilinx/dts/microblaze.dts                                         | 1 -
 include/configs/microblaze-generic.h                                    | 2 +-
 3 files changed, 1 insertion(+), 2 deletions(-)
 rename board/xilinx/{microblaze-generic/dts/microblaze.dts => dts/microblaze-generic.dts} (100%)
 delete mode 100644 board/xilinx/dts/microblaze.dts

diff --git a/board/xilinx/microblaze-generic/dts/microblaze.dts b/board/xilinx/dts/microblaze-generic.dts
similarity index 100%
rename from board/xilinx/microblaze-generic/dts/microblaze.dts
rename to board/xilinx/dts/microblaze-generic.dts
diff --git a/board/xilinx/dts/microblaze.dts b/board/xilinx/dts/microblaze.dts
deleted file mode 100644
index bf984b0..0000000
--- a/board/xilinx/dts/microblaze.dts
+++ /dev/null
@@ -1 +0,0 @@
-/include/ BOARD_DTS
diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h
index 17f53ba..ad91d21 100644
--- a/include/configs/microblaze-generic.h
+++ b/include/configs/microblaze-generic.h
@@ -34,7 +34,7 @@
 /* Open Firmware DTS */
 #define CONFIG_OF_CONTROL	1
 #define CONFIG_OF_EMBED		1
-#define CONFIG_DEFAULT_DEVICE_TREE microblaze
+#define CONFIG_DEFAULT_DEVICE_TREE microblaze-generic
 
 /* linear and spi flash memory */
 #ifdef XILINX_FLASH_START
-- 
1.8.1.5

[U-Boot] [PATCH 2/8] dts/Makefile: simplify dtc invocation

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

The invocation of dtc is significantly more complex that it could be,
in order to work around an issue on old versions of dtc, which print
a message to stdout every time they run.

Remove this workaround, on the assumption that people have or will
upgrade to a newer version of dtc. This simplifies the build rule
significantly.

Related, split the invocation of cpp and dtc into separate commands
rather than a pipeline, so that if either fail, it is detected. This has
the nice benefit of saving off the result of the pre-processing step,
allowing it to be easily inspected.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 .gitignore   | 1 +
 dts/Makefile | 9 ++-------
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/.gitignore b/.gitignore
index 4116448..be9abd6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@
 *.patch
 *.bin
 *.cfgtmp
+*.dtstmp
 
 # Build tree
 /build-*
diff --git a/dts/Makefile b/dts/Makefile
index 03e163e..4d81d79 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -51,13 +51,8 @@ all:	$(obj).depend $(LIB)
 DT_BIN	:= $(obj)dt.dtb
 
 $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
-	rc=$$( \
-		cat $< | $(CPP) -P $(DTS_CPPFLAGS) - | \
-		{ { $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} - 2>&1 ; \
-		    echo $$? >&3 ; } | \
-		  grep -v '^DTC: dts->dtb  on file' ; \
-	        } 3>&1 1>&2 ) ; \
-	exit $$rc
+	$(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
+	$(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
 
 process_lds = \
 	$(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p'
-- 
1.8.1.5

[U-Boot] [PATCH 3/8] dts/Makefile: unify cpp/dtc include paths

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

*.dts may use #include (via cpp) or /include/ (via dtc; assuming a newer
dtc). The choice is up to the creator of the DT. Create a common variable
DTC_INCDIRS that lists the paths searched by include statements, and
update cpp and dtc invocation to use them.

For cpp, also specify -nostdinc to ensure the same set of paths is
available to both type of include statement.

For dtc, create a new DTC_FLAGS variable to hold all the flags passed to
dtc.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 dts/Makefile | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/dts/Makefile b/dts/Makefile
index 4d81d79..ec89f8b 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -37,11 +37,18 @@ $(if $(CONFIG_ARCH_DEVICE_TREE),,\
 $(error Your architecture does not have device tree support enabled. \
 Please define CONFIG_ARCH_DEVICE_TREE))
 
+DTS_INCDIRS =  $(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts
+DTS_INCDIRS += $(SRCTREE)/board/$(VENDOR)/dts
+DTS_INCDIRS += $(SRCTREE)/arch/$(ARCH)/dts
+
 # We preprocess the device tree file provide a useful define
 DTS_CPPFLAGS := -x assembler-with-cpp \
 		-DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
 		-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\" \
-		-I$(SRCTREE)/board/$(VENDOR)/dts -I$(SRCTREE)/arch/$(ARCH)/dts
+		-nostdinc $(addprefix -I,$(DTS_INCDIRS))
+
+DTC_FLAGS := -R 4 -p 0x1000 \
+	$(addprefix -i ,$(DTS_INCDIRS))
 
 all:	$(obj).depend $(LIB)
 
@@ -52,7 +59,7 @@ DT_BIN	:= $(obj)dt.dtb
 
 $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
 	$(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
-	$(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
+	$(DTC) $(DTC_FLAGS) -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
 
 process_lds = \
 	$(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p'
-- 
1.8.1.5

[U-Boot] [PATCH 4/8] dt: don't use ARCH_CPU_DTS

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

Now that we assume dtc supports the -i option, we don't need to use
ARCH_CPU_DTS in *.dts{,i}; we simply specify the include filename
directly, and dtc will find it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 board/chromebook-x86/dts/link.dts         | 2 +-
 board/samsung/dts/exynos5250-smdk5250.dts | 2 +-
 board/samsung/dts/exynos5250-snow.dts     | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/board/chromebook-x86/dts/link.dts b/board/chromebook-x86/dts/link.dts
index d0738cb..c95ee8a 100644
--- a/board/chromebook-x86/dts/link.dts
+++ b/board/chromebook-x86/dts/link.dts
@@ -1,6 +1,6 @@
 /dts-v1/;
 
-/include/ ARCH_CPU_DTS
+/include/ "coreboot.dtsi"
 
 / {
         #address-cells = <1>;
diff --git a/board/samsung/dts/exynos5250-smdk5250.dts b/board/samsung/dts/exynos5250-smdk5250.dts
index 8da973b..538b820 100644
--- a/board/samsung/dts/exynos5250-smdk5250.dts
+++ b/board/samsung/dts/exynos5250-smdk5250.dts
@@ -10,7 +10,7 @@
 */
 
 /dts-v1/;
-/include/ ARCH_CPU_DTS
+/include/ "exynos5250.dtsi"
 
 / {
 	model = "SAMSUNG SMDK5250 board based on EXYNOS5250";
diff --git a/board/samsung/dts/exynos5250-snow.dts b/board/samsung/dts/exynos5250-snow.dts
index 24658c1..30c22c9 100644
--- a/board/samsung/dts/exynos5250-snow.dts
+++ b/board/samsung/dts/exynos5250-snow.dts
@@ -10,7 +10,7 @@
 */
 
 /dts-v1/;
-/include/ ARCH_CPU_DTS
+/include/ "exynos5250.dtsi"
 
 / {
 	model = "Google Snow";
-- 
1.8.1.5

[U-Boot] [PATCH 5/8] dts/Makefile: don't define ARCH_CPU_DTS, BOARD_DTS

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

Now that nothing uses the defines ARCH_CPU_DTS, BOARD_DTS, stop defining
them.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 dts/Makefile | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/dts/Makefile b/dts/Makefile
index ec89f8b..f1dad07 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -33,18 +33,11 @@ $(error Please define CONFIG_DEFAULT_DEVICE_TREE in your board header file))
 DEVICE_TREE = $(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE))
 endif
 
-$(if $(CONFIG_ARCH_DEVICE_TREE),,\
-$(error Your architecture does not have device tree support enabled. \
-Please define CONFIG_ARCH_DEVICE_TREE))
-
 DTS_INCDIRS =  $(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts
 DTS_INCDIRS += $(SRCTREE)/board/$(VENDOR)/dts
 DTS_INCDIRS += $(SRCTREE)/arch/$(ARCH)/dts
 
-# We preprocess the device tree file provide a useful define
 DTS_CPPFLAGS := -x assembler-with-cpp \
-		-DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
-		-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\" \
 		-nostdinc $(addprefix -I,$(DTS_INCDIRS))
 
 DTC_FLAGS := -R 4 -p 0x1000 \
-- 
1.8.1.5

[U-Boot] [PATCH 6/8] config: don't define CONFIG_ARCH_DEVICE_TREE

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

Now that nothing uses CONFIG_ARCH_DEVICE_TREE, stop defining it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/cpu/armv7/tegra114/config.mk | 19 -------------------
 arch/arm/cpu/armv7/tegra20/config.mk  | 26 --------------------------
 arch/arm/cpu/armv7/tegra30/config.mk  | 19 -------------------
 arch/microblaze/config.mk             |  2 --
 arch/x86/cpu/coreboot/config.mk       | 23 -----------------------
 doc/README.fdt-control                |  3 +--
 include/configs/exynos5250-dt.h       |  1 -
 7 files changed, 1 insertion(+), 92 deletions(-)
 delete mode 100644 arch/arm/cpu/armv7/tegra114/config.mk
 delete mode 100644 arch/arm/cpu/armv7/tegra20/config.mk
 delete mode 100644 arch/arm/cpu/armv7/tegra30/config.mk
 delete mode 100644 arch/x86/cpu/coreboot/config.mk

diff --git a/arch/arm/cpu/armv7/tegra114/config.mk b/arch/arm/cpu/armv7/tegra114/config.mk
deleted file mode 100644
index cb1a19d..0000000
--- a/arch/arm/cpu/armv7/tegra114/config.mk
+++ /dev/null
@@ -1,19 +0,0 @@
-#
-# Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-CONFIG_ARCH_DEVICE_TREE := tegra114
diff --git a/arch/arm/cpu/armv7/tegra20/config.mk b/arch/arm/cpu/armv7/tegra20/config.mk
deleted file mode 100644
index 6432e75..0000000
--- a/arch/arm/cpu/armv7/tegra20/config.mk
+++ /dev/null
@@ -1,26 +0,0 @@
-#
-# (C) Copyright 2010,2011
-# NVIDIA Corporation <www.nvidia.com>
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-CONFIG_ARCH_DEVICE_TREE := tegra20
diff --git a/arch/arm/cpu/armv7/tegra30/config.mk b/arch/arm/cpu/armv7/tegra30/config.mk
deleted file mode 100644
index 719ca81..0000000
--- a/arch/arm/cpu/armv7/tegra30/config.mk
+++ /dev/null
@@ -1,19 +0,0 @@
-#
-# Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-CONFIG_ARCH_DEVICE_TREE := tegra30
diff --git a/arch/microblaze/config.mk b/arch/microblaze/config.mk
index b4935f0..aca79e2 100644
--- a/arch/microblaze/config.mk
+++ b/arch/microblaze/config.mk
@@ -31,5 +31,3 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x80F00000
 PLATFORM_CPPFLAGS += -ffixed-r31 -D__microblaze__
 
 LDSCRIPT ?= $(SRCTREE)/$(CPUDIR)/u-boot.lds
-
-CONFIG_ARCH_DEVICE_TREE := microblaze
diff --git a/arch/x86/cpu/coreboot/config.mk b/arch/x86/cpu/coreboot/config.mk
deleted file mode 100644
index 4858fc3..0000000
--- a/arch/x86/cpu/coreboot/config.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# Copyright (c) 2012 The Chromium OS Authors.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-CONFIG_ARCH_DEVICE_TREE := coreboot
diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index 95a88a7..8512beb 100644
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -135,8 +135,7 @@ file into
 	board/<vendor>/dts/<name>.dts
 
 This should include your CPU or SOC's device tree file, placed in
-arch/<arch>/dts, and then make any adjustments required. The name of this
-is CONFIG_ARCH_DEVICE_TREE.dts.
+arch/<arch>/dts, and then make any adjustments required.
 
 If CONFIG_OF_EMBED is defined, then it will be picked up and built into
 the U-Boot image (including u-boot.bin).
diff --git a/include/configs/exynos5250-dt.h b/include/configs/exynos5250-dt.h
index 8a82892..a749c42 100644
--- a/include/configs/exynos5250-dt.h
+++ b/include/configs/exynos5250-dt.h
@@ -39,7 +39,6 @@
 #define CONFIG_DISPLAY_BOARDINFO
 
 /* Enable fdt support for Exynos5250 */
-#define CONFIG_ARCH_DEVICE_TREE		exynos5250
 #define CONFIG_OF_CONTROL
 #define CONFIG_OF_SEPARATE
 
-- 
1.8.1.5

[U-Boot] [PATCH 7/8] dts/Makefile: don't use cpp -P

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

Recent dtc supports #line directives in the input source code, and even
uses them to generate useful line numbers in any messages it emits. Stop
passing -P to cpp, since there's no need any more.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 dts/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dts/Makefile b/dts/Makefile
index f1dad07..b9add54 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -51,7 +51,7 @@ all:	$(obj).depend $(LIB)
 DT_BIN	:= $(obj)dt.dtb
 
 $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
-	$(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
+	$(CPP) $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
 	$(DTC) $(DTC_FLAGS) -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
 
 process_lds = \
-- 
1.8.1.5

[U-Boot] [PATCH 8/8] dts/Makefile: pass -undef -D__DTS__ to cpp

[Stephen Warren]

From: Stephen Warren <swarren@nvidia.com>

This brings U-Boot's cpp invocation into line with the way the Linux
kernel invokes cpp on device trees. Consistency will be useful to ensure
*.dts is portable between the two.

-undef also has the added advantage of not defining "linux", so DT
property names such as "linux,keymap" don't get mangled.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 dts/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dts/Makefile b/dts/Makefile
index b9add54..f01258a 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -37,7 +37,7 @@ DTS_INCDIRS =  $(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts
 DTS_INCDIRS += $(SRCTREE)/board/$(VENDOR)/dts
 DTS_INCDIRS += $(SRCTREE)/arch/$(ARCH)/dts
 
-DTS_CPPFLAGS := -x assembler-with-cpp \
+DTS_CPPFLAGS := -x assembler-with-cpp -undef -D__DTS__ \
 		-nostdinc $(addprefix -I,$(DTS_INCDIRS))
 
 DTC_FLAGS := -R 4 -p 0x1000 \
-- 
1.8.1.5

[U-Boot] [PATCH 6/8] config: don't define CONFIG_ARCH_DEVICE_TREE

[Jagan Teki]

Hi,

I think we can wait some more time to mature the fdt support on
u-boot, as not many boards were using this future.
may be I am also incorrect.

And need to remove the CONFIG_ARCH_DEVICE_TREE references in
dts/Makefile to for working this.

--
Thanks,
Jagan.

On Tue, Jun 11, 2013 at 4:47 AM, Stephen Warren <swarren@wwwdotorg.org> wrote:
> From: Stephen Warren <swarren@nvidia.com>
>
> Now that nothing uses CONFIG_ARCH_DEVICE_TREE, stop defining it.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
> ---
>  arch/arm/cpu/armv7/tegra114/config.mk | 19 -------------------
>  arch/arm/cpu/armv7/tegra20/config.mk  | 26 --------------------------
>  arch/arm/cpu/armv7/tegra30/config.mk  | 19 -------------------
>  arch/microblaze/config.mk             |  2 --
>  arch/x86/cpu/coreboot/config.mk       | 23 -----------------------
>  doc/README.fdt-control                |  3 +--
>  include/configs/exynos5250-dt.h       |  1 -
>  7 files changed, 1 insertion(+), 92 deletions(-)
>  delete mode 100644 arch/arm/cpu/armv7/tegra114/config.mk
>  delete mode 100644 arch/arm/cpu/armv7/tegra20/config.mk
>  delete mode 100644 arch/arm/cpu/armv7/tegra30/config.mk
>  delete mode 100644 arch/x86/cpu/coreboot/config.mk
>
> diff --git a/arch/arm/cpu/armv7/tegra114/config.mk b/arch/arm/cpu/armv7/tegra114/config.mk
> deleted file mode 100644
> index cb1a19d..0000000
> --- a/arch/arm/cpu/armv7/tegra114/config.mk
> +++ /dev/null
> @@ -1,19 +0,0 @@
> -#
> -# Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
> -#
> -# (C) Copyright 2002
> -# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
> -#
> -# This program is free software; you can redistribute it and/or modify it
> -# under the terms and conditions of the GNU General Public License,
> -# version 2, as published by the Free Software Foundation.
> -#
> -# This program is distributed in the hope it will be useful, but WITHOUT
> -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> -# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
> -# more details.
> -#
> -# You should have received a copy of the GNU General Public License
> -# along with this program.  If not, see <http://www.gnu.org/licenses/>.
> -#
> -CONFIG_ARCH_DEVICE_TREE := tegra114
> diff --git a/arch/arm/cpu/armv7/tegra20/config.mk b/arch/arm/cpu/armv7/tegra20/config.mk
> deleted file mode 100644
> index 6432e75..0000000
> --- a/arch/arm/cpu/armv7/tegra20/config.mk
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -#
> -# (C) Copyright 2010,2011
> -# NVIDIA Corporation <www.nvidia.com>
> -#
> -# (C) Copyright 2002
> -# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
> -#
> -# See file CREDITS for list of people who contributed to this
> -# project.
> -#
> -# This program is free software; you can redistribute it and/or
> -# modify it under the terms of the GNU General Public License as
> -# published by the Free Software Foundation; either version 2 of
> -# the License, or (at your option) any later version.
> -#
> -# This program is distributed in the hope that it will be useful,
> -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> -# GNU General Public License for more details.
> -#
> -# You should have received a copy of the GNU General Public License
> -# along with this program; if not, write to the Free Software
> -# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> -# MA 02111-1307 USA
> -#
> -CONFIG_ARCH_DEVICE_TREE := tegra20
> diff --git a/arch/arm/cpu/armv7/tegra30/config.mk b/arch/arm/cpu/armv7/tegra30/config.mk
> deleted file mode 100644
> index 719ca81..0000000
> --- a/arch/arm/cpu/armv7/tegra30/config.mk
> +++ /dev/null
> @@ -1,19 +0,0 @@
> -#
> -# Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
> -#
> -# (C) Copyright 2002
> -# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
> -#
> -# This program is free software; you can redistribute it and/or modify it
> -# under the terms and conditions of the GNU General Public License,
> -# version 2, as published by the Free Software Foundation.
> -#
> -# This program is distributed in the hope it will be useful, but WITHOUT
> -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> -# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
> -# more details.
> -#
> -# You should have received a copy of the GNU General Public License
> -# along with this program.  If not, see <http://www.gnu.org/licenses/>.
> -#
> -CONFIG_ARCH_DEVICE_TREE := tegra30
> diff --git a/arch/microblaze/config.mk b/arch/microblaze/config.mk
> index b4935f0..aca79e2 100644
> --- a/arch/microblaze/config.mk
> +++ b/arch/microblaze/config.mk
> @@ -31,5 +31,3 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x80F00000
>  PLATFORM_CPPFLAGS += -ffixed-r31 -D__microblaze__
>
>  LDSCRIPT ?= $(SRCTREE)/$(CPUDIR)/u-boot.lds
> -
> -CONFIG_ARCH_DEVICE_TREE := microblaze
> diff --git a/arch/x86/cpu/coreboot/config.mk b/arch/x86/cpu/coreboot/config.mk
> deleted file mode 100644
> index 4858fc3..0000000
> --- a/arch/x86/cpu/coreboot/config.mk
> +++ /dev/null
> @@ -1,23 +0,0 @@
> -#
> -# Copyright (c) 2012 The Chromium OS Authors.
> -#
> -# See file CREDITS for list of people who contributed to this
> -# project.
> -#
> -# This program is free software; you can redistribute it and/or
> -# modify it under the terms of the GNU General Public License as
> -# published by the Free Software Foundation; either version 2 of
> -# the License, or (at your option) any later version.
> -#
> -# This program is distributed in the hope that it will be useful,
> -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> -# GNU General Public License for more details.
> -#
> -# You should have received a copy of the GNU General Public License
> -# along with this program; if not, write to the Free Software
> -# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> -# MA 02111-1307 USA
> -#
> -
> -CONFIG_ARCH_DEVICE_TREE := coreboot
> diff --git a/doc/README.fdt-control b/doc/README.fdt-control
> index 95a88a7..8512beb 100644
> --- a/doc/README.fdt-control
> +++ b/doc/README.fdt-control
> @@ -135,8 +135,7 @@ file into
>         board/<vendor>/dts/<name>.dts
>
>  This should include your CPU or SOC's device tree file, placed in
> -arch/<arch>/dts, and then make any adjustments required. The name of this
> -is CONFIG_ARCH_DEVICE_TREE.dts.
> +arch/<arch>/dts, and then make any adjustments required.
>
>  If CONFIG_OF_EMBED is defined, then it will be picked up and built into
>  the U-Boot image (including u-boot.bin).
> diff --git a/include/configs/exynos5250-dt.h b/include/configs/exynos5250-dt.h
> index 8a82892..a749c42 100644
> --- a/include/configs/exynos5250-dt.h
> +++ b/include/configs/exynos5250-dt.h
> @@ -39,7 +39,6 @@
>  #define CONFIG_DISPLAY_BOARDINFO
>
>  /* Enable fdt support for Exynos5250 */
> -#define CONFIG_ARCH_DEVICE_TREE                exynos5250
>  #define CONFIG_OF_CONTROL
>  #define CONFIG_OF_SEPARATE
>
> --
> 1.8.1.5
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot

[U-Boot] [PATCH 6/8] config: don't define CONFIG_ARCH_DEVICE_TREE

[Stephen Warren]

On 06/11/2013 12:52 AM, Jagan Teki wrote:
> Hi,
> 
> I think we can wait some more time to mature the fdt support on
> u-boot, as not many boards were using this future.
> may be I am also incorrect.

Sorry, I don't understand what this means.

> And need to remove the CONFIG_ARCH_DEVICE_TREE references in
> dts/Makefile to for working this.

That's what patch 5/8 does.

[U-Boot] [PATCH 0/8] rely on latest dtc, simplify

[Tom Rini]

On Mon, Jun 10, 2013 at 05:16:56PM -0600, Stephen Warren wrote:

> From: Stephen Warren <swarren@nvidia.com>
> 
> This is a series of patches which simplifies the rules to build *.dts in
> U-Boot by relying on features in the latest dtc. The include rules are
> made more consistent between cpp (when processing *.dts) and dtc. The cpp
> flags are made more consistent with the way the kernel processes *.dts to
> allow better portability of *.dts between the two.

Please add a dtc-version Makefile variable and corresponding
tools/dtc-version.sh script, ala gcc/binutils so that we can error out
gracefully if dtc isn't supporting the options we need.

-- 
Tom
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[U-Boot] [PATCH 0/8] rely on latest dtc, simplify

[Stephen Warren]

On 06/11/2013 10:19 AM, Tom Rini wrote:
> On Mon, Jun 10, 2013 at 05:16:56PM -0600, Stephen Warren wrote:
> 
>> From: Stephen Warren <swarren@nvidia.com>
>> 
>> This is a series of patches which simplifies the rules to build
>> *.dts in U-Boot by relying on features in the latest dtc. The
>> include rules are made more consistent between cpp (when
>> processing *.dts) and dtc. The cpp flags are made more consistent
>> with the way the kernel processes *.dts to allow better
>> portability of *.dts between the two.
> 
> Please add a dtc-version Makefile variable and corresponding 
> tools/dtc-version.sh script, ala gcc/binutils so that we can error
> out gracefully if dtc isn't supporting the options we need.

Hmm. dtc doesn't really seem to do releases. Hence, there's no version
number available to check for here:-( (i.e. the features this series
rely on were added after 1.3.0, which is the most recent, but quite
old, tagged release).

I suppose I could ping them yet again on tagging a release...

[U-Boot] [PATCH 0/8] rely on latest dtc, simplify

[Tom Rini]

On Tue, Jun 11, 2013 at 10:36:14AM -0600, Stephen Warren wrote:
> On 06/11/2013 10:19 AM, Tom Rini wrote:
> > On Mon, Jun 10, 2013 at 05:16:56PM -0600, Stephen Warren wrote:
> > 
> >> From: Stephen Warren <swarren@nvidia.com>
> >> 
> >> This is a series of patches which simplifies the rules to build
> >> *.dts in U-Boot by relying on features in the latest dtc. The
> >> include rules are made more consistent between cpp (when
> >> processing *.dts) and dtc. The cpp flags are made more consistent
> >> with the way the kernel processes *.dts to allow better
> >> portability of *.dts between the two.
> > 
> > Please add a dtc-version Makefile variable and corresponding 
> > tools/dtc-version.sh script, ala gcc/binutils so that we can error
> > out gracefully if dtc isn't supporting the options we need.
> 
> Hmm. dtc doesn't really seem to do releases. Hence, there's no version
> number available to check for here:-( (i.e. the features this series
> rely on were added after 1.3.0, which is the most recent, but quite
> old, tagged release).
> 
> I suppose I could ping them yet again on tagging a release...

Yeah, I can imagine a release might also help encourage distributions to
update...

-- 
Tom
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[U-Boot] [PATCH 0/8] rely on latest dtc, simplify

[Tom Rini]

On Tue, Jun 11, 2013 at 12:19:52PM -0400, Tom Rini wrote:
> On Mon, Jun 10, 2013 at 05:16:56PM -0600, Stephen Warren wrote:
> 
> > From: Stephen Warren <swarren@nvidia.com>
> > 
> > This is a series of patches which simplifies the rules to build *.dts in
> > U-Boot by relying on features in the latest dtc. The include rules are
> > made more consistent between cpp (when processing *.dts) and dtc. The cpp
> > flags are made more consistent with the way the kernel processes *.dts to
> > allow better portability of *.dts between the two.
> 
> Please add a dtc-version Makefile variable and corresponding
> tools/dtc-version.sh script, ala gcc/binutils so that we can error out
> gracefully if dtc isn't supporting the options we need.

For clarity, we need some sort of graceful error-out, be it version
check or flag-is-supported check.  I fear this is going to lead to a
lot of people not being able to compile and I'd like to be able to give
a clear error message.

-- 
Tom
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[U-Boot] [PATCH 0/8] rely on latest dtc, simplify

[Stephen Warren]

On 06/19/2013 06:46 AM, Tom Rini wrote:
> On Tue, Jun 11, 2013 at 12:19:52PM -0400, Tom Rini wrote:
>> On Mon, Jun 10, 2013 at 05:16:56PM -0600, Stephen Warren wrote:
>> 
>>> From: Stephen Warren <swarren@nvidia.com>
>>> 
>>> This is a series of patches which simplifies the rules to build
>>> *.dts in U-Boot by relying on features in the latest dtc. The
>>> include rules are made more consistent between cpp (when
>>> processing *.dts) and dtc. The cpp flags are made more
>>> consistent with the way the kernel processes *.dts to allow
>>> better portability of *.dts between the two.
>> 
>> Please add a dtc-version Makefile variable and corresponding 
>> tools/dtc-version.sh script, ala gcc/binutils so that we can
>> error out gracefully if dtc isn't supporting the options we
>> need.
> 
> For clarity, we need some sort of graceful error-out, be it
> version check or flag-is-supported check.  I fear this is going to
> lead to a lot of people not being able to compile and I'd like to
> be able to give a clear error message.

I've implemented this check and have the patches ready. I'm just
waiting for a dtc release that has all the required features, so that
there actually is a version number the code can check for.

It sounds like there's agreement to make the dtc release by the end of
this week, unless anyone comes forward and objects, and they haven't
yet:-)

[U-Boot] [PATCH 0/8] rely on latest dtc, simplify

[Tom Rini]

On Wed, Jun 19, 2013 at 09:38:17AM -0600, Stephen Warren wrote:
> On 06/19/2013 06:46 AM, Tom Rini wrote:
> > On Tue, Jun 11, 2013 at 12:19:52PM -0400, Tom Rini wrote:
> >> On Mon, Jun 10, 2013 at 05:16:56PM -0600, Stephen Warren wrote:
> >> 
> >>> From: Stephen Warren <swarren@nvidia.com>
> >>> 
> >>> This is a series of patches which simplifies the rules to build
> >>> *.dts in U-Boot by relying on features in the latest dtc. The
> >>> include rules are made more consistent between cpp (when
> >>> processing *.dts) and dtc. The cpp flags are made more
> >>> consistent with the way the kernel processes *.dts to allow
> >>> better portability of *.dts between the two.
> >> 
> >> Please add a dtc-version Makefile variable and corresponding 
> >> tools/dtc-version.sh script, ala gcc/binutils so that we can
> >> error out gracefully if dtc isn't supporting the options we
> >> need.
> > 
> > For clarity, we need some sort of graceful error-out, be it
> > version check or flag-is-supported check.  I fear this is going to
> > lead to a lot of people not being able to compile and I'd like to
> > be able to give a clear error message.
> 
> I've implemented this check and have the patches ready. I'm just
> waiting for a dtc release that has all the required features, so that
> there actually is a version number the code can check for.
> 
> It sounds like there's agreement to make the dtc release by the end of
> this week, unless anyone comes forward and objects, and they haven't
> yet:-)

Sounds good to me, thanks!

-- 
Tom
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[U-Boot] [PATCH 1/8] xilinx: move microblaze-generic .dts to standard location

[Simon Glass]

On Mon, Jun 10, 2013 at 4:16 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> From: Stephen Warren <swarren@nvidia.com>
>
> Aside from microblaze, all other SoCs/boards/vendors store their DT files
> in board/$vendor/dts/$soc-$board.dts. Move microblaze-generic.dts to this
> location for consistency.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>

Acked-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH 2/8] dts/Makefile: simplify dtc invocation

[Simon Glass]

Hi Stephen,

On Mon, Jun 10, 2013 at 4:16 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> From: Stephen Warren <swarren@nvidia.com>
>
> The invocation of dtc is significantly more complex that it could be,
> in order to work around an issue on old versions of dtc, which print
> a message to stdout every time they run.
>
> Remove this workaround, on the assumption that people have or will
> upgrade to a newer version of dtc. This simplifies the build rule
> significantly.
>
> Related, split the invocation of cpp and dtc into separate commands
> rather than a pipeline, so that if either fail, it is detected. This has
> the nice benefit of saving off the result of the pre-processing step,
> allowing it to be easily inspected.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
> ---
>  .gitignore   | 1 +
>  dts/Makefile | 9 ++-------
>  2 files changed, 3 insertions(+), 7 deletions(-)
>
> diff --git a/.gitignore b/.gitignore
> index 4116448..be9abd6 100644
> --- a/.gitignore
> +++ b/.gitignore
> @@ -16,6 +16,7 @@
>  *.patch
>  *.bin
>  *.cfgtmp
> +*.dtstmp
>
>  # Build tree
>  /build-*
> diff --git a/dts/Makefile b/dts/Makefile
> index 03e163e..4d81d79 100644
> --- a/dts/Makefile
> +++ b/dts/Makefile
> @@ -51,13 +51,8 @@ all: $(obj).depend $(LIB)
>  DT_BIN := $(obj)dt.dtb
>
>  $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
> -       rc=$$( \
> -               cat $< | $(CPP) -P $(DTS_CPPFLAGS) - | \
> -               { { $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} - 2>&1 ; \
> -                   echo $$? >&3 ; } | \
> -                 grep -v '^DTC: dts->dtb  on file' ; \
> -               } 3>&1 1>&2 ) ; \
> -       exit $$rc
> +       $(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
> +       $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
>

When you get an error here, will dtc report a bogus filename? Or will the
CPP line information deal with that> - iwc please add a comment to the
commit message.


>
>  process_lds = \
>         $(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p'
> --
> 1.8.1.5
>
>
Regards,
Simon

[U-Boot] [PATCH 2/8] dts/Makefile: simplify dtc invocation

[Stephen Warren]

On 06/19/2013 02:37 PM, Simon Glass wrote:
> Hi Stephen,
> 
> On Mon, Jun 10, 2013 at 4:16 PM, Stephen Warren <swarren@wwwdotorg.org
> <mailto:swarren@wwwdotorg.org>> wrote:
...
>     Related, split the invocation of cpp and dtc into separate commands
>     rather than a pipeline, so that if either fail, it is detected. This has
>     the nice benefit of saving off the result of the pre-processing step,
>     allowing it to be easily inspected.
...
>     diff --git a/.gitignore b/.gitignore
...
>      $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
...
>     +       $(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
>     +       $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
> 
> 
> When you get an error here, will dtc report a bogus filename? Or will
> the CPP line information deal with that> - iwc please add a comment to
> the commit message.

Added this to commit description:

Assuming a new enough dtc (which an earlier patch enforces), dtc will
parse #line directives in its input file, and generate correct file and
line numbers in error messages, even though cpp is unconditionally
applied to its input file.

(note the patch that refers to will be new in v2 of the series).

[U-Boot] [PATCH 3/8] dts/Makefile: unify cpp/dtc include paths

[Simon Glass]

Hi Stephen,

On Mon, Jun 10, 2013 at 4:16 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> From: Stephen Warren <swarren@nvidia.com>
>
> *.dts may use #include (via cpp) or /include/ (via dtc; assuming a newer
> dtc). The choice is up to the creator of the DT. Create a common variable
> DTC_INCDIRS that lists the paths searched by include statements, and
> update cpp and dtc invocation to use them.
>
> For cpp, also specify -nostdinc to ensure the same set of paths is
> available to both type of include statement.
>
> For dtc, create a new DTC_FLAGS variable to hold all the flags passed to
> dtc.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>

Acked-by: Simon Glass <sjg@chromium.org>


> ---
>  dts/Makefile | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/dts/Makefile b/dts/Makefile
> index 4d81d79..ec89f8b 100644
> --- a/dts/Makefile
> +++ b/dts/Makefile
> @@ -52,7 +59,7 @@ DT_BIN        := $(obj)dt.dtb
>
>  $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
>         $(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
> -       $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
> +       $(DTC) $(DTC_FLAGS) -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
>

.dts.tmp perhaps?


>
>  process_lds = \
>         $(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p'
> --
> 1.8.1.5
>
>
Regards,
Simon

[U-Boot] [PATCH 4/8] dt: don't use ARCH_CPU_DTS

[Simon Glass]

On Mon, Jun 10, 2013 at 4:17 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> From: Stephen Warren <swarren@nvidia.com>
>
> Now that we assume dtc supports the -i option, we don't need to use
> ARCH_CPU_DTS in *.dts{,i}; we simply specify the include filename
> directly, and dtc will find it.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>

Acked-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH 5/8] dts/Makefile: don't define ARCH_CPU_DTS, BOARD_DTS

[Simon Glass]

On Mon, Jun 10, 2013 at 4:17 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> From: Stephen Warren <swarren@nvidia.com>
>
> Now that nothing uses the defines ARCH_CPU_DTS, BOARD_DTS, stop defining
> them.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>

Acked-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH 6/8] config: don't define CONFIG_ARCH_DEVICE_TREE

[Simon Glass]

On Mon, Jun 10, 2013 at 4:17 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> From: Stephen Warren <swarren@nvidia.com>
>
> Now that nothing uses CONFIG_ARCH_DEVICE_TREE, stop defining it.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>

Acked-by: Simon Glass <sjg@chromium.org>


> ---
>  arch/arm/cpu/armv7/tegra114/config.mk | 19 -------------------
>  arch/arm/cpu/armv7/tegra20/config.mk  | 26 --------------------------
>  arch/arm/cpu/armv7/tegra30/config.mk  | 19 -------------------
>  arch/microblaze/config.mk             |  2 --
>  arch/x86/cpu/coreboot/config.mk       | 23 -----------------------
>  doc/README.fdt-control                |  3 +--
>  include/configs/exynos5250-dt.h       |  1 -
>  7 files changed, 1 insertion(+), 92 deletions(-)
>  delete mode 100644 arch/arm/cpu/armv7/tegra114/config.mk
>  delete mode 100644 arch/arm/cpu/armv7/tegra20/config.mk
>  delete mode 100644 arch/arm/cpu/armv7/tegra30/config.mk
>  delete mode 100644 arch/x86/cpu/coreboot/config.mk
>
>

[U-Boot] [PATCH 3/8] dts/Makefile: unify cpp/dtc include paths

[Stephen Warren]

On 06/19/2013 02:51 PM, Simon Glass wrote:
> Hi Stephen,
> 
> On Mon, Jun 10, 2013 at 4:16 PM, Stephen Warren <swarren@wwwdotorg.org
> <mailto:swarren@wwwdotorg.org>> wrote:
> 
>     From: Stephen Warren <swarren at nvidia.com <mailto:swarren@nvidia.com>>
> 
>     *.dts may use #include (via cpp) or /include/ (via dtc; assuming a newer
>     dtc). The choice is up to the creator of the DT. Create a common
>     variable
>     DTC_INCDIRS that lists the paths searched by include statements, and
>     update cpp and dtc invocation to use them.

>      $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
>             $(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
>     -       $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
>     +       $(DTC) $(DTC_FLAGS) -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
> 
> 
> .dts.tmp perhaps?

I chose dtstmp to match *.cfgtmp which I found in .gitignore. Still, I
have no idea what those files are, so there's probably no reason to be
consistent with them. I can change this if you want (in patch 2/8).

[U-Boot] [PATCH 7/8] dts/Makefile: don't use cpp -P

[Simon Glass]

On Mon, Jun 10, 2013 at 4:17 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> From: Stephen Warren <swarren@nvidia.com>
>
> Recent dtc supports #line directives in the input source code, and even
> uses them to generate useful line numbers in any messages it emits. Stop
> passing -P to cpp, since there's no need any more.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>

Acked-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH 8/8] dts/Makefile: pass -undef -D__DTS__ to cpp

[Simon Glass]

On Mon, Jun 10, 2013 at 4:17 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> From: Stephen Warren <swarren@nvidia.com>
>
> This brings U-Boot's cpp invocation into line with the way the Linux
> kernel invokes cpp on device trees. Consistency will be useful to ensure
> *.dts is portable between the two.
>
> -undef also has the added advantage of not defining "linux", so DT
> property names such as "linux,keymap" don't get mangled.
>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>

Acked-by: Simon Glass <sjg@chromium.org>


This series looks good and I'm pleased that it seems we are now able to
drop support for the older dtc. It is slightly concerning that there has
been no new dtc release for so long, but we should try to minimise the pain
caused to U-Boot.

We have local patches which enable building multiple .dts files as the
kernel does. Once this lands we can perhaps send out a patch or two for
that.

Regards,
Simon

[U-Boot] [PATCH 3/8] dts/Makefile: unify cpp/dtc include paths

[Simon Glass]

On Wed, Jun 19, 2013 at 1:56 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:

> On 06/19/2013 02:51 PM, Simon Glass wrote:
> > Hi Stephen,
> >
> > On Mon, Jun 10, 2013 at 4:16 PM, Stephen Warren <swarren@wwwdotorg.org
> > <mailto:swarren@wwwdotorg.org>> wrote:
> >
> >     From: Stephen Warren <swarren at nvidia.com <mailto:swarren@nvidia.com
> >>
> >
> >     *.dts may use #include (via cpp) or /include/ (via dtc; assuming a
> newer
> >     dtc). The choice is up to the creator of the DT. Create a common
> >     variable
> >     DTC_INCDIRS that lists the paths searched by include statements, and
> >     update cpp and dtc invocation to use them.
>
> >      $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
> >             $(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dtstmp
> >     -       $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
> >     +       $(DTC) $(DTC_FLAGS) -O dtb -o ${DT_BIN} $(DT_BIN).dtstmp
> >
> >
> > .dts.tmp perhaps?
>
> I chose dtstmp to match *.cfgtmp which I found in .gitignore. Still, I
> have no idea what those files are, so there's probably no reason to be
> consistent with them. I can change this if you want (in patch 2/8).
>

OK thanks.

Regards,
Simon

[U-Boot] [PATCH 1/8] xilinx: move microblaze-generic .dts to standard location

[Michal Simek]

On 06/19/2013 10:36 PM, Simon Glass wrote:
> On Mon, Jun 10, 2013 at 4:16 PM, Stephen Warren <swarren@wwwdotorg.org>wrote:
> 
>> From: Stephen Warren <swarren@nvidia.com>
>>
>> Aside from microblaze, all other SoCs/boards/vendors store their DT files
>> in board/$vendor/dts/$soc-$board.dts. Move microblaze-generic.dts to this
>> location for consistency.
>>
>> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>>
> 
> Acked-by: Simon Glass <sjg@chromium.org>

Acked-by: Michal Simek <monstr@monstr.eu>

M


-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform


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