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* spear: move CONFIG_SYS_I2C_BASE from arch-spear/hardware to board configsAlexey Brodkin2014-02-20-4/+10
| | | | | | | | | | | | | | | Having CONFIG_SYS_I2C_BASE requires DW I2C driver to explicitly include <arch/hardware.h> which other platforms may not have at all. It's always good to have a driver platform-independent. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Tom Rini <trini@ti.com> Cc: Heiko Schocher <hs@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Vipin Kumar <vipin.kumar@st.com> Cc: Armando Visconti <armando.visconti@st.com>
* OMAP24xx I2C: Add support for set-speedHannes Petermaier2014-02-20-50/+98
| | | | | | | | | | | | | | | Adds support for set-speed on the OMAP24xx I2C Adapter. Changes to omap24_i2c_write(...) for polling ARDY Bit from IRQ-Status. Otherwise on a subsequent call the transfer of last byte from the predecessor is aborted and therefore lost. For exmaple when i2c_write(...) is followed by a i2c_setspeed(...) (which has to deactivate and activate master for changing psc,...). Minor cosmetical changes. Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at> Cc: Heiko Schocher <hs@denx.de>
* i2c: i2c-mxs: Wait for I2C to empty queueMarek Vasut2014-02-20-7/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure the I2C write queue is empty before leaving the mxs_i2c_write(). If we start and I2C write and only wait for ACK, the MXS I2C IP block may enter next operation while still processing the write aftermath internally. This will in turn disrupt one or more subsequent transfer(s). A testcase for this issue is as such. This testcase is also interesting because the first I2C_WRITE which becomes disruptive happens in the 'i2c read' command. The 'i2c read' command first uses I2C_WRITE to send I2C address of the chip and then uses I2C_READ to read data from the chip. After this command completes, the 'i2c probe' will use sequence of I2C_WRITE commands to probe the I2C bus. The problem is that the first I2C_WRITE disrupted the I2C IP block operation and this sideeffect propagates all the way to this next I2C_WRITE used by the 'i2c probe' call. The result is the 'i2c probe' receives an ACK on I2C address 0x00, even if this ACK was owned by the previous I2C_WRITE operation. Note that the 'i2c read' command must read from a valid I2C chip address. Wrong: > i2c probe Valid chip addresses: 50 51 > i2c read 0x50 0x0.2 0x10 0x42000000 > i2c probe Valid chip addresses: 00 50 51 With this patch > i2c probe Valid chip addresses: 50 51 > i2c read 0x50 0x0.2 0x10 0x42000000 > i2c probe Valid chip addresses: 50 51 Signed-off-by: Marek Vasut <marex@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Fabio Estevam <festevam@gmail.com>
* designware_i2c: Enhance DesignWare I2C driver address supportChin Liang See2014-02-20-32/+9
| | | | | | | | | | | | | | Enhance the DesignWare I2C driver to support address length more than 1 byte. This enhancement is required as some I2C slave device such as EEPROM chip might have 16 bit address byte. Signed-off-by: Chin Liang See <clsee@altera.com> Acked-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: Tom Rini <trini@ti.com> cc: Armando Visconti <armando.visconti@st.com> Cc: Stefan Roese <sr@denx.de> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Heiko Schocher <hs@denx.de>
* i2c, bootcount: add support for bootcounter on i2c devicesHeiko Schocher2014-02-20-0/+65
| | | | | | | add support for bootcounter on an i2c device. And add a README for all bootcounter options. Signed-off-by: Heiko Schocher <hs@denx.de>
* blackfin: make i2c driver blackfin independantScott Jiang2014-02-20-71/+80
| | | | | | | | | The ADI twi peripheral is not binding to Blackfin processor only. Access i2c registers by standard io functions. Fix coding style. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
* blackfin: rename bfin-twi_i2c driver to adi_i2cSonic Zhang2014-02-20-0/+393
| | | | | | | The ADI twi peripheral is not binding to Blackfin processor only. Change to a generic name. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
* blackfin: add spi and i2c specific get clock functionsSonic Zhang2014-02-20-14/+21
| | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
* blackfin: the sclk MHz in i2c driver should be divided by 1000 other than 1024Sonic Zhang2014-02-20-1/+1
| | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
* i2c: zynq: Add support for the second i2c controllerMichael Burr2014-02-20-20/+30
| | | | | | | Initialize the second i2c controller. Signed-off-by: Michael Burr <michael.burr@logicpd.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* i2c: zynq: Support for 0-length register addressMichael Burr2014-02-20-19/+23
| | | | | | | | | | Fixed bug with alen == 0 in 'i2c_write', 'i2c_read' Further minor corrections: - Write 'address' register before 'data' register. - Write 'transfer_size' register before 'address' register. Signed-off-by: Michael Burr <michael.burr@logicpd.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* Prepare v2014.04-rc1Tom Rini2014-02-19-2/+2
| | | | Signed-off-by: Tom Rini <trini@ti.com>
* kbuild,tegra124: add dummy obj- for KbuildMasahiro Yamada2014-02-19-0/+3
| | | | | | | | In Kbuild, every makefile must have non-empty obj- or obj-y. Otherwise, built-in.o will not be created and the link stage will fail. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* cosmetic: FIT: fix a strange commentMasahiro Yamada2014-02-19-1/+1
| | | | | | | | | | There is a strange comment in fit_image_load(). This function can be used for loading Kernel Image, FDT as well as ramdisk. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
* Move CONFIG_DISPLAY_CPUINFO to MakefileMasahiro Yamada2014-02-19-6/+6
| | | | | | | If the whole code is surrounded by #ifdef(CONFIG_ ) .. #endif, it should be moved to Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Move #ifdef(CONFIG_DISPLAY_CPUINFO) from caller to calleeMasahiro Yamada2014-02-19-12/+14
| | | | | | | | | | | | | | | | | | - When CONFIG_DISPLAY_CPUINFO is not enabled, print_cpuinfo() should be defined as an empty function in a header, include/common.h - Remove #ifdef CONFIG_DISPLAY_CPUINFO .. #endif from caller, common/board_f.c and arch/arm/lib/board.c - Remove redundant prototypes in arch/arm/lib/board.c, arch/arm/include/asm/arch-am33x/sys_proto.h and board/nokia/rx51/rx51.h, keeping the one in include/common.h - Add #ifdef CONFIG_DISPLAY_CPUINFO to the func definition where it is missing Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* configs: Delete unused CONFIG_SYS_64BIT_{VSPRINTF, STRTOUL}Masahiro Yamada2014-02-19-6/+0
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* configs: Delete obsolete macro, CONFIG_SYS_GBL_DATA_SIZEMasahiro Yamada2014-02-19-51/+8
| | | | | | | | | | | CONFIG_SYS_GBL_DATA_SIZE is not used any more. The size of struct "global_data" is automatically calculated by asm-offsets. (See lib/asm-offsets.c) GENERATED_GBL_DATA_SIZE should be used instead of CONFIG_SYS_GBL_DATA_SIZE. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* dts: generate multiple device tree blobsMasahiro Yamada2014-02-19-11/+83
| | | | | | | | | | | | | It is convenient to have all device trees on the same SoC compiled. It allows for later easy repackaging without the need to re-run the make file. - Build device trees with the same SoC under arch/$(ARCH)/dts - Copy the one specified by CONFIG_DEFAULT_DEVICE_TREE or DEVICE_TREE=... to dts/dt.dtb Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* dts: move device tree sources to arch/$(ARCH)/dts/Masahiro Yamada2014-02-19-3/+2
| | | | | | | | | | | | | | | | | 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>
* dts: re-write dts/Makefile more simply with KbuildMasahiro Yamada2014-02-19-72/+41
| | | | | | | | | | | 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>
* kernel-doc: fix some errorsMasahiro Yamada2014-02-19-4/+4
| | | | | | | | | | | - Delete fs.xml from DOCBOOKS to fix an error. Commit e3ff797c added fs.xml to DOCBOOKS but missed to add doc/DocBook/fs.tmpl. - Fix the location of include guard in include/linker_lists.h. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reported-by: Abraham Varricatt <abraham.varricatt@vvdntech.com> Acked-by: Simon Glass <sjg@chromium.org>
* kernel-doc: update kernel-doc related files to Linux v3.13Masahiro Yamada2014-02-19-47/+101
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* kernel-doc: move kernel-doc tools to scripts/Masahiro Yamada2014-02-19-26/+32
| | | | | | | | | | | | tools/kernel-doc/docproc.c and tools/kernel-doc/kernel-doc are files imported from Linux Kernel. They originally resided under scripts/ directory in Linux Kernel. This commit moves them to the original location. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* .gitignore: drop include/asm from ignored file listMasahiro Yamada2014-02-19-1/+0
| | | | | | Commit bb02c536 stopped creaing a symbolic link include/asm. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* tools/env: cross-compile fw_printenv without setting HOSTCCMasahiro Yamada2014-02-19-7/+18
| | | | | | | | | | | | | | | fw_printenv is a program which mostly runs on the target Linux. Before switching to Kbuild, we needed to set HOSTCC at the command line like this: make HOSTCC=<your CC cross-compiler> env Going forward we can cross compile it by specifying CROSS_COMPILE: make CROSS_COMPILE=<your cross-compiler prefix> env This looks more natural. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* kbuild: Do not generate .*.su files at the top directoryMasahiro Yamada2014-02-19-1/+3
| | | | | | | | Without this workaround, you will see a lot of ".*.su" files at the top directory after building with a compiler which supports "-fstack-usage" option. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* board: sandburst: delete FORCEBUILDMasahiro Yamada2014-02-19-10/+2
| | | | | | | | | | | | | | | We had switched to Kbuild, so we do not need to delete sandburst board files at every build. U-Boot conventional build system did not check the update of command line option, -DBUILDUSER. Kbuild can handle it nicely and re-builds object files when command line options are changed. (The file ".*.cmd" stores the information how the file was generated at the previous build.) Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: check clean source and generate Makefile for out-of-tree buildMasahiro Yamada2014-02-19-6/+55
| | | | | | | | For out-of-tree build - Check if the source tree is clean - Create a Makefile in the output directory Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: support simultaneous board configuration and "make all"Masahiro Yamada2014-02-19-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit fixes two problems: [1] We could not do board configuration and "make all" in one command line. For example, the following did not work as we expect: $ make sandbox_config all Configuring for sandbox board... make: Nothing to be done for `all'. [2] mixed-target build did not work with -j option For example, the following did not work: $ make -j8 sandbox_config u-boot Makefile:481: *** "System not configured - see README". Stop. make: *** [u-boot] Error 2 make: *** Waiting for unfinished jobs.... Configuring for sandbox board... Going forward, we can do $ make -j8 sandbox_config all This is the same as $ make sandbox_config $ make -j8 Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use scripts/Makefile.cleanMasahiro Yamada2014-02-19-88/+111
| | | | | | | | | | | | | | This commit refactors cleaning targets such as clean, clobber, mrpropper, distclean with scripts/Makefile.clean. By using scripts/Makefile.clean, we can recursively descend into subdirectories and delete generated files there. We do not need add a big list of generated files to the "clean" target. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: refactor tools-all targetsMasahiro Yamada2014-02-19-6/+10
| | | | | | | - Move "easylogo", "gdb" tagets to tools/Makefile - Delete "gdbtools" target (same as "gdb") Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: Do not pass MTD_VERSION from the top MakefileMasahiro Yamada2014-02-19-1/+1
| | | | | | | | | | | | | | $(MTD_VERSION) is used in tools/env/Makefile If you specify a variable at a command line like: $ make MTD_VERSION=old env or specify it thru an envrionment variable like: $ export MTD_VERSION=old $ make env it is inherited to the sub-make too. We do not need to pass it from the top Makefile explicitely. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: refactor Makefile and spl/Makefile moreMasahiro Yamada2014-02-19-137/+141
| | | | | | | | | | | This commit refactors rules of directory descending and defines u-boot-dirs and u-boot-all-dirs. (We will need u-boot-all-dirs when using scripts/Makefile.clean) Additionally, rename LIBS-y to libs-y. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* examples: move api/ and standalone/ entry to examples/MakefileMasahiro Yamada2014-02-19-12/+10
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: change the top Makefile to more Kbuild-ish structureMasahiro Yamada2014-02-19-123/+167
| | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the top Makefile to handle various targets nicely. Make targets are divided into four categories: - mixed-targets We can call a configuration target and build targets at one command line like follows: $ make <board_name>_config u-boot They are handled one by one. - config targets <board_name>_config - no-dot-config-targets Targets we can run without board configuration such as clean, mrproper, distclean, TAGS, %docs, etc. - build targets The other target which need board configuration. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: remove a cleaning target "tidy"Masahiro Yamada2014-02-19-8/+3
| | | | | | | | | | | | Before this commit, "make tidy" did "make clean" + delete "*.depend*" files. But, we do not have "*.depend*" files any more, which means "make tidy" is the same as "make clean". This commit removes the redandant target "tidy". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: generate {spl, tpl}-autoconf.mk only when it is necessaryMasahiro Yamada2014-02-19-23/+16
| | | | | | | | | | | | Before this commit, {spl,tpl}-autoconf.mk was always generated at the top Makefile even if SPL(TPL) build was not selected. This commit moves the build rule of {spl,tpl}-autoconf.mk from the top Makefile to spl/Makefile. It prevents unnecessary {spl,tpl}-autoconf.mk from being generated. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: move include directives of board configuration filesMasahiro Yamada2014-02-19-15/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the location of include directives of board configuration files. The purpose of this change is: - Slim down $(TOPDIR)/config.mk - Prevent $(TOPDIR)/Makefile from including the same configuration file twice - Do not include include/config.mk multiple times because ARCH, CPU, BOARD, VENDOR, SOC are exported Before this commit: - include/autoconf.mk was included from $(TOPDIR)/Makefile and $(TOPDIR)/config.mk (This means $(TOPDIR)/Makefile included include/autoconf.mk twice) - include/{spl,tpl}-autoconf.mk was included from $(TOPDIR)/config.mk - include/config.mk was included from $(TOPDIR)/Makefile and $(TOPDIR)/config.mk (This means $(TOPDIR)/Makefile included include/config.mk twice) After this commit: - include/autoconf.mk is included from $(TOPDIR)/Makefile and $(TOPDIR)/scripts/Makefile.build - include/{spl,tpl}-autoconf.mk is included from $(TOPDIR)/spl/Makefile and $(TOPDIR)/scripts/Makefile.build - include/config.mk is included from $(TOPDIR)/config.mk and $(TOPDIR)/spl/Makefile Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: convert some make rules to Kbuild styleMasahiro Yamada2014-02-19-34/+43
| | | | | | | | | | | | We can get Kbuild-ish log style like this: GEN include/autoconf.mk GEN include/autoconf.mk.dep We do not need XECHO any more. And also change checkstack target like Linux Kernel. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: move some lines to more suitable placeMasahiro Yamada2014-02-19-33/+33
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: delete temporary build scriptsMasahiro Yamada2014-02-19-235/+0
| | | | | | | We had switched to Kbuild. We do not need old build scripts any more. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: use Linux Kernel build scriptsMasahiro Yamada2014-02-19-325/+526
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* kbuild: import more build scripts from Linux v3.13 tagMasahiro Yamada2014-02-19-0/+1663
| | | | | | | | | | 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>
* Makefile: rename scripts/Makefile.build to scripts/Makefile.build.tmpMasahiro Yamada2014-02-19-1/+1
| | | | | | | | | | | | Some build scripts including scripts/Makefile.build will be imported from Linux Kernel in the next commit. We need to adjust them for U-Boot in the following commits. To make it easier for reviewers to track the modification, this commit renames scripts/Makefile.build to scripts/Makefile.build.tmp beforehand. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: add dummy obj-y to create built-in.oMasahiro Yamada2014-02-19-5/+25
| | | | | | | | | We are going to switch over to Kbuild in upcoming commits. Each makefile must have non-empty obj- or obj-y to generate built-in.o on Kbuild. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: change out-of-tree buildMasahiro Yamada2014-02-19-744/+612
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C <sub-dir>" syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>" syntax for descending into sub-directories. (We can write it like "make $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* Makefile: move some flags to examples makefilesMasahiro Yamada2014-02-19-8/+8
| | | | | | | This commit moves some flags which are used under examples/ directory only. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: move some flags to spl/MakefileMasahiro Yamada2014-02-19-19/+14
| | | | | | | Some flags are used for SPL (and TPL) build only. This commit moves them from config.mk to spl/Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Makefile: move more stuff to top MakefileMasahiro Yamada2014-02-19-21/+18
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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