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2018-02-14spl: unbreak CONFIG_SPL_MULTI_DTB_FIT after fixing CONFIG_OF_EMBEDSimon Goldschmidt
With commit 9bd76b807636 ("spl: make CONFIG_OF_EMBED pass dts through fdtgrep"), CONFIG_SPL_MULTI_DTB_FIT has been broken because cmd_fdtgrep was now unknown in scripts/Makefile.spl after moving it to dts/Makefile. This bug has been introduced with v2018.01. This patch moves cmd_fdtgrep from dts/Makefile to scripts/Makefile.lib and includes scripts/Makefile.lib in scripts/Makefile.spl. Fixes: 9bd76b807636 ("spl: make CONFIG_OF_EMBED pass dts through fdtgrep") Reported-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Simon Goldschmidt <sgoldschmidt@de.pepperl-fuchs.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2017-11-22binman: Add better Makefile debuggingSimon Glass
There is a debugging option in the Makefile to allow people to figure out which u-boot.dtsi files are used in the build. But is it not easy to use since it only shows files it finds, not those it is looking for. Update it and update the mention of it to the docs. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-10-16kbuild: fix dependency of DT buildMasahiro Yamada
I saw a DT build issue report some time before [1]. I was able to reproduce the bug, and figure out the root cause. Since commit 6d427c6b1fa0 ("binman: Automatically include a U-Boot .dtsi file"), invalid .*.cmd files are generated. Since that commit, DTS files are put into sed and piped to CPP. Because CPP reads the stream from stdin, -Wp,-MD,$(depfile).pre.tmp option generates a depfile with the target name "-". This is not the format expected by fixdep. Use one more temporary file instead of using pipe. With this, deps_ in the .*.cmd will be fixed. Having a temp file name in source_ is odd, but it is unsed in the build system. Not a big deal. [1] https://lists.denx.de/pipermail/u-boot/2017-June/294451.html Fiexes: 6d427c6b1fa0 ("binman: Automatically include a U-Boot .dtsi file") Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-09-18scripts/Makefile.lib: generalize building built in EFI appHeinrich Schuchardt
Replace all occurences of helloworld by generalized forms. This allows us to build additional EFI applications that are included into the U-Boot binary without loading scripts/Makefile.lib with specific filenames. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2017-09-18efi_loader: rename __efi_hello_world_*Heinrich Schuchardt
In scripts/Makefile.lib we build section including helloworld.efi. This allows to load the EFI binary with command 'bootefi hello'. scripts/Makefile.lib contains explicit references to strings containing helloworld and hello_world. This makes it impossible to generalize the coding to accomodate additional built in EFI binaries. Let us rename the variables __efi_hello_world_* to __efi_helloworld_*. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2017-09-18scripts/Makefile.lib: remove overridden target $(obj)/helloworld.so:Heinrich Schuchardt
The target $(obj)/helloworld.so: exists twice in Makefile.lib. If you add an echo command to each of the two recipes you get warnings like: scripts/Makefile.lib:383: warning: overriding recipe for target 'drivers/power/battery/helloworld.so' scripts/Makefile.lib:379: warning: ignoring old recipe for target 'drivers/power/battery/helloworld.so' This patch removes the obsolete target. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2017-09-15dtbo: make dtbos specialPantelis Antoniou
Special rule for dtbo generation Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Acked-by: Simon Glass <sjg@chromium.org>
2017-07-30Makefile: Don't shadow actual error when compile ASLAndy Shevchenko
If ASL compiler failed by any reason do not produce output C file. Otherwise sequential run of make will shadow the actual error in ASL, i.e. CC board/intel/edison/dsdt.o board/intel/edison/dsdt.c:1:1: error: unterminated comment /* and user has to remove dsdt.c and run make in order to see the error again. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2017-06-05scripts/Makefile.lib: Only apply u-boot.dtsi files in the target directoryTom Rini
We only want to apply files such as 'omap5-u-boot.dtsi', which resides in arch/arm/dts/ to other files in arch/arm/dts/ and not say test/overlay/. Rework the make logic to check for -u-boot.dtsi files in the same directory as their target dts. Cc: Simon Glass <sjg@chromium.org> Reported-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Signed-off-by: Tom Rini <trini@konsulko.com> Tested-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-18scripts/Makefile.lib: Always have ...-u-boot.dtsi be able to overrideTom Rini
The intention of having a -u-boot.dtsi file is to be able to make changes to the provided upstream dts files as well as to be able to add nodes. Change the logic for adding the file from making it the last included file at the top of the dts to being included at the end of the file. Cc: Jean-Jacques Hiblot <jjhiblot@ti.com> Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Tested-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-01-14Avoid non-portable sed constructMark Kettenis
Using \n in a substitution is a GNU extension. Use the 'G" command instead to insert the desired line. Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
2017-01-14Makefile: Make EFI build quietAndrew F. Davis
Make building EFI example less noisy. Signed-off-by: Andrew F. Davis <afd@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-01-02Makefile: preserve output for images that can contain HAB BlocksSven Ebenfeld
To being able to sign created binaries, we need to know the HAB Blocks for that image. Especially for the imximage type the HAB Blocks are only available during creation of the image. We want to preserve the information until we get to sign the files. In the verbose case we still get them printed out instead of writing to log files. Cc: sbabic@denx.de v2-Changes: - No usage of MKIMAGEOUTPUT_$(@F) macro. - Predefine default value /dev/null in every involved Makefile. Signed-off-by: Sven Ebenfeld <sven.ebenfeld@gmail.com> Reviewed-by: George McCollister <george.mccollister@gmail.com> Tested-by: George McCollister <george.mccollister@gmail.com>
2016-12-20sunxi: Use binman for sunxi boardsSimon Glass
Move sunxi boards to use binman. This involves adding the image definition to the device tree and using it in the Makefile. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-12-20binman: Automatically include a U-Boot .dtsi fileSimon Glass
For boards that need U-Boot-specific additions to the device tree, it is a minor annoyance to have to add these each time the tree is synced with upstream. Add a means to include a file (e.g. u-boot.dtsi) automatically into the .dts file before it is compiled. The file uses is the first one that exists in this list: arch/<arch>/dts/<board.dts>-u-boot.dtsi arch/<arch>/dts/<soc>-u-boot.dtsi arch/<arch>/dts/<cpu>-u-boot.dtsi arch/<arch>/dts/<vendor>-u-boot.dtsi arch/<arch>/dts/u-boot.dtsi Signed-off-by: Simon Glass <sjg@chromium.org> Suggested-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2016-12-20binman: Allow configuration options to be used in .dts filesSimon Glass
It is sometimes useful to be able to reference configuration options in a device tree source file. Add the necessary includes so that this works. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2016-11-14efi: Add support for a hello world test programSimon Glass
It is useful to have a basic sanity check for EFI loader support. Add a 'bootefi hello' command which loads HelloWord.efi and runs it under U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org> [agraf: Fix documentation, add unfulfilled kconfig dep] Signed-off-by: Alexander Graf <agraf@suse.de>
2016-08-20scripts: Makefile.lib: Sanitize DTB namesMaxime Ripard
Having dashes as a separator in the DTB name is a quite common practice. However, the current code to generate objects from DTBs assumes the separator is an underscore, leading to a compilation error when building a device tree with dashes. Replace all the dashes in the DTB name to generate the symbols name, which should solve this issue. Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-05-30acpi: Pass -D__ASSEMBLY__ when compiling ASL filesBin Meng
ASL files may include various U-Boot header files, but IASL compiler does not understand any C language embedded in these header files. To reuse those header files for ASL compiling, use __ASSEMBLY__ in the header files to exclude everything that is not liked by IASL. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23acpi: Quieten IASL output when 'make -s' is usedBin Meng
IASL compiler does not provide a command line option to turn off its non-warning message. To quieten the output when 'make -s', redirect its output to /dev/null. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23acpi: Output all errors/warnings/remarks when compiling ASLBin Meng
Remove -va option when invoking IASL compiler so that we can see errors/warnings/remarks in the build log. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23acpi: Specify U-Boot include path for ASL filesBin Meng
It will be much easier if we split the whole dsdt.asl file into multiple smaller ASL parts and have access to U-Boot include files. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23acpi: Explicitly spell out dsdt.c in the make ruleBin Meng
Currently the make rule for dsdt.c uses a wildcard, as below: $(obj)/%.c: $(src)/%.asl To avoid any side effect, explicitly mention dsdt.c as this is the file we intend to use for ACPI DSDT AML generation. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23acpi: Change build log for ASL filesBin Meng
Currently when compiling U-Boot with ASL file, the build log says: ASL board/intel/bayleybay/dsdt.c This looks odd as ASL compiler's input is ASL file, not C file. Change the make rule to use $< instead. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-30Makefile: Add rules to build in .ttf filesSimon Glass
Add rules to allow TrueType files to be compiled into U-Boot for use on the video console. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-01-19scripts/Makefile* Add SPDX-License-Identifier tagTom Rini
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>
2015-08-26x86: Generate a valid ACPI tableSaket Sinha
Implement write_acpi_table() to create a minimal working ACPI table. This includes writing FACS, XSDT, RSDP, FADT, MCFG, MADT, DSDT & SSDT ACPI table entries. Use a Kconfig option GENERATE_ACPI_TABLE to tell U-Boot whether we need actually write the APCI table just like we did for PIRQ routing, MP table and SFI tables. With ACPI table existence, linux kernel gets control of power management, thermal management, configuration management and monitoring in hardware. Signed-off-by: Saket Sinha <saket.sinha89@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tidied up whitespace and aligned some tabs: Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-05Support removing default assembler flagsSimon Glass
The CFLAGS_REMOVE_<file> feature allows default C compiler flags to be removed for particular files. Add the same feature for assembler, using AFLAGS_REMOVE_<file>. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2015-07-27kbuild: sync with Linux 4.1Masahiro Yamada
Update some build scripts to match Linux 4.1. Commit-based syncing was done so as not to break U-Boot specific changes. The previous big sync was from Linux 3.18-rc1 by commit 176d09827725 (kbuild: sync misc scripts with Linux 3.18-rc1). The commits imported from Linux (some with adjustments) are: [1] commit 9fb5e5372208973984a23ee6f5f025c05d364633 Author: Robert Richter <rrichter@cavium.com> dts, kbuild: Factor out dtbs install rules to Makefile.dtbinst [2] commit 371fdc77af44f4cb32475fd499e1d912ccc30890 Author: Masahiro Yamada <yamada.m@jp.panasonic.com> kbuild: collect shorthands into scripts/Kbuild.include [3] commit a29b82326ed4eb5567b03c85b52c6891578d5a03 Author: Michal Marek <mmarek@suse.cz> kbuild: Remove duplicate $(cmd) definition in Makefile.clean [4] commit 1846dfbde3e8a53f3673dcb1c1b79fd9b3f8d40d Author: Masahiro Yamada <yamada.m@jp.panasonic.com> kbuild: remove redundant -rR flag of hdr-inst [5] commit 34948e0bbf98640fc1821751b01d2f0cd17d84d5 Author: Michal Marek <mmarek@suse.cz> kbuild: Drop support for clean-rule [6] commit a16c5f99a28c9945165c46da27fff8e6f26f8736 Author: Michal Marek <mmarek@suse.cz> kbuild: Fix removal of the debian/ directory [7] commit d0d38cd9e853db11e0242b3df4c9c3c4a663fbb4 Author: Masahiro Yamada <yamada.m@jp.panasonic.com> kbuild: use mixed-targets when two or more config targets are given [8] commit dd33c03b18b3f2db791eb6a17c37d2de66e4de18 Author: Masahiro Yamada <yamada.m@jp.panasonic.com> kbuild: fix cc-ifversion macro [9] commit 665d92e38f65d70796aad2b8e49e42e80815d4a4 Author: Masahiro Yamada <yamada.m@jp.panasonic.com> kbuild: do not add $(call ...) to invoke cc-version or cc-fullversion [10] commit 6dcb4e5edf39e3b65a75ca76f087b2fdbee8a808 Author: Masahiro Yamada <yamada.m@jp.panasonic.com> kbuild: allow cc-ifversion to have the argument for false condition [11] commit c0a80c0c27e5e65b180a25e6c4c2f7ef9e386cd3 Author: Heiko Carstens <heiko.carstens@de.ibm.com> ftrace: allow architectures to specify ftrace compile options [12] commit 0b24becc810dc3be6e3f94103a866f214c282394 Author: Andrey Ryabinin <a.ryabinin@samsung.com> kasan: add kernel address sanitizer infrastructure [13] commit 4218affdf57f938c04e3a916a9685ee27079f377 Author: Masahiro Yamada <yamada.m@jp.panasonic.com> kbuild: remove warning about "make depend" [14] commit 77479b38e2f58890eb221a0418357502a5b41cd6 Author: Nathan Rossi <nathan.rossi@xilinx.com> kbuild: Create directory for target DTB Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-04-07fix makefiles to respect DTC settingPavel Machek
Top-level Makefile has option to select dtc binary, but it is ignored due to bug in Makefile.lib. Fix it. Signed-off-by: Pavel Machek <pavel@denx.de>
2014-11-25Align embedded device tree correctlySimon Glass
Device trees must be aligned to a 4-byte boundary. This was dropped in the Kbuild conversion. Bring it back, and use 16-byte alignment for good measure. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-07kbuild: improve multi-objs dependency and cleanupsMasahiro Yamada
Since Linux 3.18-rc1, Kbuild is able to handle multi-objs dependency correctly, which also allows us futher cleanups of some makefiles. This commit imports those commits: [1] commit c8589d1e9e01 by Masahiro Yamada kbuild: handle multi-objs dependency appropriately [2] commit 97e3226e6e98 by Masahiro Yamada kbuild: handle the dependency of multi-objs hostprogs appropriately [3] commit 022af62d0190 by Masahiro Yamada kbuild: refactor script/kconfig/Makefile [4] commit 221ecca6cafe by Masahiro Yamada kbuild: remove redundant clean-files from scripts/kconfig/Makefile Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-20Merge branch 'master' of git://git.denx.de/u-boot-dmTom Rini
2014-06-20Makefile: Support include files for .dts filesSimon Glass
Linux supports this, and if we are to have compatible device tree files, U-Boot should also. Avoid giving the device tree files access to U-Boot's include/ directory. Only include/dt-bindings is accessible. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-20cosmetic: kbuild: clean-up coding style (sync with Linux 3.16-rc1)Masahiro Yamada
Import the following trivial commits from Linux v3.16-rc1: bb66fc6 kbuild: trivial - use tabs for code indent where possible 7eb6e34 kbuild: trivial - remove trailing empty lines 3fbb43d kbuild: trivial - fix comment block indent 38385f8 kbuild: trivial - remove trailing spaces Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-05kbuild: move cmd_mkimage to scripts/Makefile.libMasahiro Yamada
Because cmd_mkimage is used in various subdirectories, it seems reasonable to define it in scripts/Makefile.lib. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-04-18kbuild: sync with Linux Kernel v3.15-rc1Masahiro Yamada
This commit imports Kbuild-related updates from v3.14 to v3.15-rc1. - commit 3d3d6b8474204b6819688c9800774d52d370a538 kbuild: LLVMLinux: Adapt warnings for compilation with clang - commit 61163efae02040f66a95c8ed17f4407951ba58fa kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang - commit 79192ca8ebd9a25c583aa46024a250fef1e7766f scripts: objdiff: detect object code changes between two commits - commit 1c9e70a55b088d97a59241744fe459409d0c3582 kbuild: create a build directory automatically for out-of-tree build - commit a03fcb50e816a69acffb13b5e56db75063aeba8a kbuild: remove redundant '.*.cmd' pattern from make distclean - commit 13338935f1574a2dcd1c891461b0dcc42f8cff42 kbuild: move "quote" to Kbuild.include to be consistent - commit bfdfaeae500a3b194b73b01e92a8034791a58b7f kbuild: specify build_docproc as a phony target - commit f4d4ffc03efc864645b990e1d579bbe1b8e358a4 kbuild: dtbs_install: new make target - commit 1e64ff42ea3d8d2fc8aa71f9717b3c1cb6c2f893 Kbuild, lto: Disable LTO for asm-offsets.c - commit ccbef1674a1579842c7dbdf554efca85d2cd245a Kbuild, lto: add ld-version and ld-ifversion macros - commit ae63b2d7bdd9bd66b88843be0daf8e37d8f0b574 scripts/tags.sh: Ignore *.mod.c - commit e36aaea28972c57a32a3ba5365e61633739719b9 kbuild: Fix silent builds with make-4 Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-03-07kbuild: improve Kbuild speedMasahiro Yamada
Kbuild brought about many advantages for us but a significant performance regression was reported by Simon Glass. After some discussions and analysis, it turned out its main cause is in $(call cc-option,...). Historically, U-Boot parses all config.mk (arch/*/config.mk and board/*/config.mk) every time descending into subdirectories. That means cc-options are evaluated over and over again. $(call cc-option,...) is useful but costly. So we want to evaluate them only in ./Makefile and spl/Makefile and export compiler flags. This commit changes the build system as follows: - Modify scripts/Makefile.build to not include config.mk Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y, cppflags-y. - Export many variables Going forward, Kbuild will not parse config.mk files when it descends into subdirectories. If we want to set variables in config.mk and use them in subdirectories, they must be exported. This is the list of variables to get exported: PLATFORM_CPPFLAGS CPUDIR BOARDDIR OBJCOPYFLAGS LDFLAGS LDFLAGS_FINAL (used in nand_spl/board/*/*/Makefile) CONFIG_STANDALONE_LOAD_ADDR (used in examples/standalone/Makefile) SYM_PREFIX (used in examples/standalone/Makefile) RELFLAGS (used in examples/standalone/Makefile) - Delete CPPFLAGS This variable has been replaced with PLATFORM_CPPFLAGS - Copy gcclibdir from example/standalone/Makefile to arch/sparc/config.mk The reference in CONFIG_STANDALONE_LOAD_ADDR must be resolved before it is exported. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox] Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
2014-02-19dts: move device tree sources to arch/$(ARCH)/dts/Masahiro Yamada
Unlike Linux Kernel, U-Boot historically had *.dts files under board/$(VENDOR)/dts/ and *.dtsi files under arch/$(ARCH)/dts/. I think arch/$(ARCH)/dts dicretory is a better location to store both *.dts and *.dtsi files. For example, before this commit, board/xilinx/dts directory had both Microblaze dts (microblaze-generic.dts) and ARM dts (zynq-*.dts), which are totally unrelated. This commit moves *.dts to arch/$(ARCH)/dts/ directories, allowing us to describe nicely mutiple DTBs generation in the next commit. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19dts: re-write dts/Makefile more simply with KbuildMasahiro Yamada
Useful rules in scripts/Makefile.lib allows us to easily generate a device tree blob and wrap it in assembly code. We do not need to parse a linker script to get output format and arch. This commit deletes ./u-boot.dtb since it is a copy of dts/dt.dtb. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19kbuild: use Linux Kernel build scriptsMasahiro Yamada
Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
2014-02-19kbuild: import more build scripts from Linux v3.13 tagMasahiro Yamada
This commit imports build scripts from Linux Kernel v3.13 as they are. I know they include some trailing spaces but I am intentionally keeping them untouched. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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