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* kbuild: fix bugs in cleaning targetsMasahiro Yamada2014-03-28-1/+1
| | | | | | | | | "make clean", "make clobber", "make mrproper" and "make distclean" missed to clean-up some files when they were run with O=<some_dir> option. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Wolfgang Denk <wd@denx.de>
* kbuild: create a build directory automatically for out-of-tree buildMasahiro Yamada2014-03-28-1/+2
| | | | | | | | | | | | | | | | | | Prior to Kbuild, the build system created a build directory, when it did not exist, for out-of-tree build. This feature was dropped when we switched to Kbuild because many of lines in makefiles were copied from Linux Kernel. (In Linux Kernel, we have to create a build directory by ourselves before starting build.) That feature seems worth reviving for less typing even if our code and Linux Kernel diverge. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Suggested-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* kbuild: Rename UIMAGE to MKIMAGEMarek Vasut2014-03-28-1/+1
| | | | | | | | | | | | | | | U-Boot uses the 'mkimage' tool to produce various image types, not only uImage image type. Rename the invocation name from UIMAGE to MKIMAGE. The following command was used to do the replacement: git grep 'quiet_cmd_mkimage.* = UIMAGE' | cut -d : -f 1 | \ xargs -i sed -i "s@\(quiet_cmd_mkimage\)\(.*\) = UIMAGE @\1\2 = MKIMAGE@" {} Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@ti.com> Cc: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: delete *.pyc files by "make distclean"Masahiro Yamada2014-03-12-1/+1
| | | | | | | | | | | | The tools "buildman" and "patman" are written in Python. When we run them, "*.pyc" files are created under tools/buildman, tools/patman directories. They should be cleaned up by "make distclean". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Rini <trini@ti.com> Acked-by: Simon Glass <sjg@chromium.org>
* kbuild: delete SPLTREE and TPLTREEMasahiro Yamada2014-03-12-4/+0
| | | | | | These variable are no longer used. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: rename OBJTREE to objtreeMasahiro Yamada2014-03-12-4/+3
| | | | | | | | | | | Prior to Kbuild, $(OBJTREE) was used for pointing to the top of build directory with absolute path. In Kbuild style, $(objtree) is used instead. This commit renames OBJTREE to objtree and delete the defition of OBJTREE. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: rename SRCTREE to srctreeMasahiro Yamada2014-03-12-3/+2
| | | | | | | | | | | | | | | Prior to Kbuild, $(TOPDIR) or $(SRCTREE) was used for pointing to the top of source directory. (No difference between the two.) In Kbuild style, $(srctree) is used for instead. This commit renames SRCTREE to srctree and deletes the defition of SRCTREE. Note that SRCTREE in scripts/kernel-doc, scripts/docproc.c, doc/DocBook/Makefile should be keep. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: rename TOPDIR to stctreeMasahiro Yamada2014-03-12-10/+9
| | | | | | | | | | | | Prior to Kbuild, $(TOPDIR) or $(SRCTREE) was used for pointing to the top of source directory. (No difference between the two.) In Kbuild style, $(srctree) is used instead. This commit renames TOPDIR to srctree and delete the defition of TOPDIR. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use $(KBUILD_SRC) to check out-of-tree buildMasahiro Yamada2014-03-12-5/+3
| | | | | | Non-empty $(KBUILD_SRC) means out-of-tree build. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kirkwood: kwbimage: refactor CONFIG_SYS_KWD_CONFIGMasahiro Yamada2014-03-12-2/+2
| | | | | | | | | | | | | | | | | | Pull out "$(SRCTREE)/" from CONFIG_SYS_KWD_CONFIG and push it into the top Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Michael Walle <michael@walle.cc> Cc: Simon Guinot <simon.guinot@sequanux.org> Cc: Dave Purdy <david.c.purdy@gmail.com> Cc: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net> Cc: Luka Perkov <luka@openwrt.org> Cc: Valentin Longchamp <valentin.longchamp@keymile.com> Cc: Jason Cooper <u-boot@lakedaemon.net> Cc: Siddarth Gore <gores@marvell.com> Cc: Prafulla Wadaskar <prafulla@marvell.com> Cc: Eric Cooper <ecc@cmu.edu> Cc: Suriyan Ramasami <suriyan.r@gmail.com>
* freescale: pblimage: refactor CONFIG_SYS_FSL_PBL_{PBI, RCW}Masahiro Yamada2014-03-12-2/+2
| | | | | | | | | | Pull out "$(SRCTREE)/" from CONFIG_SYS_FSL_PBL_PBI and CONFIG_SYS_FSL_PBL_RCW and push it into the top Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: York Sun <yorksun@freescale.com> Cc: Poonam Aggrwal <poonam.aggrwal@freescale.com> Cc: Valentin Longchamp <valentin.longchamp@keymile.com>
* kbuild,mxs: use short logs for MXS imagesMasahiro Yamada2014-03-12-1/+1
| | | | | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Lauri Hintsala <lauri.hintsala@bluegiga.com> Acked-by: Marek Vasut <marex@denx.de>
* Prepare v2014.04-rc2Tom Rini2014-03-10-1/+1
| | | | Signed-off-by: Tom Rini <trini@ti.com>
* kbuild: fix a bug of make rule of version_autogenerated.hMasahiro Yamada2014-03-10-1/+1
| | | | | | | | include/generated/version_autogenerated.h was not correctly generated on the parallel build (with -j option). Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Andreas Bießmann <andreas.devel@googlemail.com>
* kbuild: move "checkgcc4" to PowerPC archprepareMasahiro Yamada2014-03-07-9/+0
| | | | | | | | | | "checkgcc4" is used only for PowerPC. Move it to arch/powerpc/config.mk. To make sure gcc is new enough before beginning build, run "checkgcc4" during "archprepare". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: move "checkthumb" to ARM archprepareMasahiro Yamada2014-03-07-8/+0
| | | | | | | | | | "checkthumb" makes sense only for ARM architecture. Move it to arch/arm/config.mk. To make sure gcc supports THUMB mode before beginning build, run "checkthumb" during "archprepare". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: improve Kbuild speedMasahiro Yamada2014-03-07-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y, cppflags-y. - Export many variables Going forward, Kbuild will not parse config.mk files when it descends into subdirectories. If we want to set variables in config.mk and use them in subdirectories, they must be exported. This is the list of variables to get exported: PLATFORM_CPPFLAGS CPUDIR BOARDDIR OBJCOPYFLAGS LDFLAGS LDFLAGS_FINAL (used in nand_spl/board/*/*/Makefile) CONFIG_STANDALONE_LOAD_ADDR (used in examples/standalone/Makefile) SYM_PREFIX (used in examples/standalone/Makefile) RELFLAGS (used in examples/standalone/Makefile) - Delete CPPFLAGS This variable has been replaced with PLATFORM_CPPFLAGS - Copy gcclibdir from example/standalone/Makefile to arch/sparc/config.mk The reference in CONFIG_STANDALONE_LOAD_ADDR must be resolved before it is exported. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox] Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
* kbuild: add CONFIG_ prefix to USE_PRIVATE_LIBGCCMasahiro Yamada2014-03-07-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this commit, USE_PRIVATE_LIBGCC was defined in arch-specific config.mk and referenced in arch/$(ARCH)/lib/Makefile. We are not happy about parsing config.mk again and again. We have to keep the same behavior with a different way. By adding "CONFIG_" prefix, this macro appears in include/autoconf.mk, include/spl-autoconf.mk. (And treating USE_PRIVATE_LIBGCC as CONFIG macro is reasonable enough.) Tegra SoC family defined USE_PRIVATE_LIBGCC as "yes" in arch/arm/cpu/arm720t/tegra*/config.mk, whereas did not define it in arch/arm/cpu/armv7/tegra*/config.mk. It means Tegra enables PRIVATE_LIBGCC only for SPL. We can describe the same behavior by adding #ifdef CONFIG_SPL_BUILD # define CONFIG_USE_PRIVATE_LIBGCC #endif to include/configs/tegra-common.h. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Warren <twarren@nvidia.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com>
* xilinx: delete meaningless .gitignore filesMasahiro Yamada2014-03-07-1/+0
| | | | | | | | config.tmp is never generated Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Michal Simek <michal.simek@xilinx.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
* kbuild: allow empty board directoriesMasahiro Yamada2014-03-04-1/+1
| | | | | | | | | | | | | | | | | U-Boot has compelled all boards to have board/${BOARD}/ or board/${VENDOR}/${BOARD}/ directory. Sometimes it does not seem suitable for some boards, for example Sandbox. (Is it a board?) And arcangel4 board has nothing to compile under the board directory. This commit makes the build system more flexible: If '<none>' is given to the 6th column (=Board name) of boards.cfg, Kbuild will not descend into the board directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: add "cross_tools" target to build tools for the targetMasahiro Yamada2014-03-04-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Programs in tools/ directory are usually built for the host. But some of them (mkimage, dumpimge, gen_eth_addr, etc.) are useful on the target OS too. Actually, prior to Kbuild, U-Boot could build tools for the target like follows: $ make <target_board>_config $ export CROSS_COMPILE=<cross_gcc_prefix> $ make HOSTCC=${CROSS_COMPILE}gcc HOSTSTRIP=${CROSS_COMPILE}strip tools In Kbuild, we can no longer replace HOSTCC at the command line. In order to get back that feature, this commit adds "cross-tools" target. Usage: Build tools for the host $ make CROSS_COMPILE=<cross_gcc_prefix> tools Build tools for the target $ make CROSS_COMPILE=<cross_gcc_prefix> cross_tools Besides, "make cross_tools" strip tools programs because we generally expect smaller storages on embedded systems. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Heiko Schocher <hs@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Tom Rini <trini@ti.com> Tested-by: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
* kbuild: fix "tools-all" targetMasahiro Yamada2014-03-04-1/+1
| | | | | | | | | The top Makefile must export HOST_TOOLS_ALL to use it in tools/Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
* kbuild: consolidate PLATFORM_LIBSMasahiro Yamada2014-03-04-1/+1
| | | | | | | | | | We had switched to Kbuild so now we can specify PLATFORM_LIBS/PLATFORM_LIBGCC with relative path. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Tom Rini <trini@ti.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* dm: Add a demonstration/example driverSimon Glass2014-03-04-0/+1
| | | | | | | | | | | | | | | | As an example of how to write a uclass and a driver, provide a demo version of each, accessible through the 'demo' command. To use these with driver model, define CONFIG_CMD_DEMO and CONFIG_DM_DEMO. The two demo drivers are enabled with CONFIG_DM_DEMO_SIMPLE and CONFIG_DM_DEMO_SHAPE. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com> Signed-off-by: Viktor Křivák <viktor.krivak@gmail.com> Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com>
* dm: Add basic testsSimon Glass2014-03-04-0/+1
| | | | | | | | | | | | | | | | | | | | Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Add base driver model supportSimon Glass2014-03-04-0/+1
| | | | | | | | | | | | | | | | Add driver model functionality for generic board. This includes data structures and base code for registering devices and uclasses (groups of devices with the same purpose, e.g. all I2C ports will be in the same uclass). The feature is enabled with CONFIG_DM. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com> Signed-off-by: Viktor Křivák <viktor.krivak@gmail.com> Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com>
* sandbox: Build a device tree file for sandboxSimon Glass2014-03-04-0/+1
| | | | | | | | | | | | Add support for building a device tree for sandbox's CONFIG_OF_HOSTFILE option to make it easier to use device tree with sandbox. This adjusts the Makefile to build a u-boot.dtb file which can be passed to sandbox U-Boot with: ./u-boot -d u-boot.dtb Signed-off-by: Simon Glass <sjg@chromium.org>
* nand_spl: display warning message to inform the end of nand_splMasahiro Yamada2014-03-04-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now we have two different frameworks for doing the same thing. I'd like to propose to drop nand_spl framework. How about deleting it before v2014.07 release? In the interim, this commit will display a warning message when compiling nand_spl board. Now we have 19 nand_spl boards: MPC8315ERDB_NAND SIMPC8313_LP SIMPC8313_SP MPC8536DS_NAND MPC8569MDS_NAND MPC8572DS_NAND P1023RDS_NAND P1011RDB_NAND P1020RDB_NAND P2010RDB_NAND P2020RDB_NAND acadia_nand bamboo_nand canyonlands_nand glacier_nand haleakala_nand kilauea_nand rainier_nand sequoia_nand They must be ported to SPL before the deadline, otherwise they will be removed. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Dave Liu <daveliu@freescale.com> Cc: Ron Madrid <info@sheldoninst.com> Cc: Roy Zang <tie-fei.zang@freescale.com> Cc: Stefan Roese <sr@denx.de> Acked-by: Stefan Roese <sr@denx.de>
* Makefile: delete unused variable LDSCRIPT_MAKEFILE_DIRMasahiro Yamada2014-03-04-4/+0
| | | | | | LDSCRIPT_MAKEFILE_DIR is not referenced from anywhere. Remove. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: Move linker sciript check to prepare1Masahiro Yamada2014-02-25-4/+5
| | | | | | | | | | | | | | | | Same as the previous commit. Move sanity check to prepare1 target to avoid nasty troubles. Before this commit, LDSCRIPT existence was not checked when it was specified by CONFIG_SYS_LDSCRIPT. Now LDSCRIPT existence is checked for all boards. $(wildcard $(LDSCRIPT)) must point to the linker scripts with absolute path. Otherwise, make will terminate with a false error on out-of-tree build. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: Fix a false error of generic board supportMasahiro Yamada2014-02-25-8/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this commit, make terminated with an error where is shouldn't under some condition. This bug happened when we built a board unsupporting generic board right after building with generic board. For example, the following sequence failed. (harmony uses generic board but microblaze-generic does not support it) $ make harmony_config Configuring for harmony board... $ make CROSS_COMPILE=arm-linux-gnueabi- [ Build succeed ] $ make microblaze-generic_config Configuring for microblaze-generic board... $ make CROSS_COMPILE=microblaze-linux- Makefile:488: *** Your architecture does not support generic board. Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file. Stop. We had to do "make clean" before building the microblaze board. This commit fixes this unconvenience. Move generic board sanity check to "prepare1" target, which is run after generation of include/autoconf.mk. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: get back DTB at the top directoryMasahiro Yamada2014-02-25-1/+7
| | | | | | | | | | | | | | | Commit 6ab6b2af deleted ./u-boot.dtb because it was a copy of dts/dt.dtb. But Simon suggested to keep u-boot.dtb at the top directory because it is a build output. After discussions, we agreed on revival of ./u-boot.dtb. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@ti.com> Acked-by: Simon Glass <sjg@chromium.org>
* kbuild: add misc targets, help, ubootrelease, ubootversionMasahiro Yamada2014-02-25-7/+58
| | | | | | | | | "help" target has been copied from Linux 3.13 and adjusted for U-Boot. Unlike Linux, cleaning is done on 4 levels: clean, clobber, mrproper, distclean. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: support building signle targetsMasahiro Yamada2014-02-25-0/+52
| | | | | | Import build rules of single targets from Linux 3.13. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: refactor more IMX image rulesMasahiro Yamada2014-02-25-1/+4
| | | | | | | | | This commit avoids generating ./SPL twice. - Fist time descending to spl/ - Second time as a prerequisite of u-boot-with-spl.imx, u-boot-with-nand-spl.imx. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use shorten logs for IMX imagesMasahiro Yamada2014-02-25-2/+2
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use shorten logs for misc targetsMasahiro Yamada2014-02-25-2/+5
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use shorten log for linking u-bootMasahiro Yamada2014-02-25-19/+14
| | | | | | Move sandbox-specific link rule to arch/sandbox/config.mk. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use shorten logs for combined rules of mkimage, padding and catMasahiro Yamada2014-02-25-38/+41
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use shorten logs for cat rulesMasahiro Yamada2014-02-25-8/+15
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use shorten logs for mkimage rulesMasahiro Yamada2014-02-25-18/+20
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use shorten logs objcopy rulesMasahiro Yamada2014-02-25-12/+29
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: Add $(Q) when descending into subdirectoriesMasahiro Yamada2014-02-25-13/+8
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* kbuild: rename OBJCFLAGS to OBJCOPYFLAGSMasahiro Yamada2014-02-25-8/+8
| | | | | | | Rename OBJCFLAGS to OBJCOPYFLAGS beforehand to use "cmd_objcopy" in scripts/Makefile.lib in an upcoming commit. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: move asm-offsets.h rules to ./KbuildMasahiro Yamada2014-02-25-34/+2
| | | | | | | | | | | | | | | | Generate include/generated/generic-asm-offsets.h and include/generated/asm-offsets.h in ./Kbuild. This commit also changes the include guard. Before this commit, __ASM_OFFSETS_H__ was used for both of them. So we could not include generic-asm-offsets.h and asm-offsets.h at the same time. This commit renames the include guard of the former to __GENERIC_ASM_OFFSETS_H__. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: abolish "depend" targetMasahiro Yamada2014-02-25-12/+15
| | | | | | | This commit moves include/generated/{generic-asm-offsets.h, asm-offsets.h} from "depend" targets to "prepare" targets and deletes "depend" targets. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: consolidate version and timestamp headers generationMasahiro Yamada2014-02-25-37/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | - Generate include/generated/{timestamp.h, version.h} more simply by using filechk rule. - Add $(UBOOTRELEASE) variable and re-write u-boot.imx rule more simply. - Rename U_BOOT_VERSION in Makefile to UBOOTVERSION Before this commit, the same variable name, "U_BOOT_VERSION" was used for two different strings. One of them was defined in Makefile. It takes the form like "2014.01-rc1" and used in makefiles and script files. The other is defined in include/generated/version.h It takes the form like "U-Boot 2014.01-rc1-00010-gbe6d426-dirty" and used in C and Aseembler. It is confusing when grepping the source tree. So, this commit renames the former to UBOOTVERSION. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: add a new script to check -fstack-usage supportMasahiro Yamada2014-02-25-1/+3
| | | | | | | | | | | If -fstack-usage option is given to crosstools that do not support it, gcc displays a warning message but still exits with status 0. This means we can not rely on $(call cc-option,...) to detect if -fstack-usage option is supported or not. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: fix errors of 'make *tags' and 'make cscope'Masahiro Yamada2014-02-21-1/+1
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Nishanth Menon <nm@ti.com>
* kbuild: a minor optimization of "make clobber"Masahiro Yamada2014-02-21-1/+1
| | | | | | The pattern rule "MLO*" can delete both MLO and MLO.byteswap. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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