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2014-02-19dts: generate multiple device tree blobsMasahiro Yamada2-0/+13
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/$(ARCH)/dts - Copy the one specified by CONFIG_DEFAULT_DEVICE_TREE or DEVICE_TREE=... to dts/dt.dtb Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19dts: move device tree sources to arch/$(ARCH)/dts/Masahiro Yamada2-0/+59
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 Yamada1-1/+1
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: change out-of-tree buildMasahiro Yamada1-1/+1
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 $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
2014-01-25x86: delete unused header filesMasahiro Yamada1-193/+0
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
2013-11-08cosmetic: remove empty lines at the top of fileMasahiro Yamada1-1/+0
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-01x86: convert makefiles to Kbuild styleMasahiro Yamada4-91/+30
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org>
2013-10-15Coding Style cleanup: remove trailing white spaceWolfgang Denk2-2/+2
Signed-off-by: Wolfgang Denk <wd@denx.de>
2013-08-19SPDX-License-Identifier: convert BSD-3-Clause filesWolfgang Denk3-66/+3
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini Don't remove some copyrights by accident] Signed-off-by: Tom Rini <trini@ti.com>
2013-08-03config: don't define CONFIG_ARCH_DEVICE_TREEStephen Warren1-7/+0
Now that nothing uses CONFIG_ARCH_DEVICE_TREE, stop defining it. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk50-814/+50
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-17Build arch/$ARCH/lib/bootm.o depending on CONFIG_CMD_BOOTMDirk Eibach1-1/+1
MAKEALL is fine for ppc4xx and mpc85xx. Run checks were done on our controlcenterd hardware. Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-07-12blackfin: x86: bootm: Handle PREP stage of bootmSimon Glass1-0/+2
The OS function is now always called with the PREP stage. Adjust the remaining bootm OS functions to deal with this correctly. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-06-26x86: Support tracing functionSimon Glass5-7/+10
Some changes are needed to x86 timer functions to support tracing. Add these so that the feature works correctly. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-06-26x86: Correct missing local variable in bootmSimon Glass1-0/+2
Enabling FIT produces a compile error. Fix this. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-14x86: Add coreboot timestampsSimon Glass1-0/+3
Add selected coreboot timestamps into bootstage to get a unified view of the boot timings. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-14x86: Support adding coreboot timestanps to bootstageSimon Glass2-0/+45
Coreboot provides a lot of useful timing information. Provide a facility to add this to bootstage on start-up. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-14x86: Re-enable PCAT timer 2 for beepingSimon Glass4-68/+10
While we don't want PCAT timers for timing, we want timer 2 so that we can still make a beep. Re-purpose the PCAT driver for this, and enable it in coreboot. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-14x86: Remove ISR timerSimon Glass2-119/+0
This is no longer used since we prefer the more accurate TSC timer, so remove the dead code. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-05-14x86: Remove old broken timer implementationSimon Glass2-21/+1
Tidy up some old broken and unneeded implementations. These are not used by coreboot or anything else now. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Gabe Black <gabeblack@chromium.org> Reviewed-by: Michael Spang <spang@chromium.org> Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-05-14x86: Add TSC timerSimon Glass5-1/+112
This timer runs at a rate that can be calculated, well over 100MHz. It is ideal for accurate timing and does not need interrupt servicing. Tidy up some old broken and unneeded implementations at the same time. To provide a consistent view of boot time, we use the same time base as coreboot. Use the base timestamp supplied by coreboot as U-Boot's base time. Signed-off-by: Simon Glass <sjg@chromium.org>base Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-14x86: Rationalise kernel booting logic and bootstageSimon Glass3-12/+12
The 'Starting linux' message appears twice in the code, but both call through the same place. Unify these and add calls to bootstage to mark the occasion. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Michael Spang <spang@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-05-14x86: Implement panic output for corebootSimon Glass2-0/+11
panic_puts() can be called in early boot to display a message. It might help with early debugging. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
2013-05-14x86: Declare global_data pointer when it is usedSimon Glass5-0/+10
Several files use the global_data pointer without declaring it. This works because the declaration is currently a NOP. But still it is better to fix this so that x86 lines up with other archs. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-14x86: Remove legacy board init codeSimon Glass7-616/+0
Since we use CONFIG_SYS_GENERIC_BOARD on x86, we don't need this anymore. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-05-14x86: Remove unused portion of link scriptSimon Glass1-12/+0
Since we don't have real-mode code now, we can remove this chunk of the link script. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-05-14x86: Remove unused bios/pci codeSimon Glass4-363/+0
Graeme Russ pointed out that this code is no longer used. Remove it. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-05-02lib: consolidate hang()Andreas Bießmann1-7/+0
Delete all occurrences of hang() and provide a generic function. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net> [trini: Modify check around puts() in hang.c slightly] Signed-off-by: Tom Rini <trini@ti.com>
2013-04-16x86: Fix DRAM bank size init with generic boardSimon Glass1-1/+6
The intention of the memory init code is that it should work the same with CONFIG_SYS_GENERIC_BOARD and without. This is tricky because dram_init() is called prior to relocation with generic board (matching other archs) and after relocation without generic board. Adjust the init sequence so that dram_init() is not called in the generic board case, which seems like the easiest fix for now. Also ensure that relocation addresses are still calculated. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-19x86: Move PCI init before SPI initSimon Glass1-4/+4
It is possible that our PCI bus will provide the SPI controller, so change the init order to make this work. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-18Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini1-1/+1
Albert's rework of the linker scripts conflicted with Simon's making everyone use __bss_end. We also had a minor conflict over README.scrapyard being added to in mainline and enhanced in u-boot-arm/master with proper formatting. Conflicts: arch/arm/cpu/ixp/u-boot.lds arch/arm/cpu/u-boot.lds arch/arm/lib/Makefile board/actux1/u-boot.lds board/actux2/u-boot.lds board/actux3/u-boot.lds board/dvlhost/u-boot.lds board/freescale/mx31ads/u-boot.lds doc/README.scrapyard include/configs/tegra-common.h Build tested for all of ARM and run-time tested on am335x_evm. Signed-off-by: Tom Rini <trini@ti.com>
2013-03-16x86: Enable generic boardSimon Glass1-0/+1
This will be used exclusively on x86, so enable it for the whole architecture. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-16x86: Enable generic board supportSimon Glass3-0/+17
This enables generic board support so that x86 boards can define CONFIG_SYS_GENERIC_BOARD. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-16x86: Use sections header to obtain link symbolsSimon Glass6-12/+5
These are defined in asm-generic/sections.h, so remove them from architecture-specific files. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-16Introduce generic pre-relocation board_f.cSimon Glass3-6/+6
This file handles common pre-relocation init for boards which use the generic framework. It starts up the console, DRAM, performs relocation and then jumps to post-relocation init. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Wolfgang Denk <wd@denx.de> Acked-by: Wolfgang Denk <wd@denx.de>
2013-03-16Change stub example to use asm-generic/sections.hSimon Glass1-3/+3
We can use the declarations of __bss_start and _end from this header instead of declaring them locally. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-16Introduce generic link section.h symbol filesSimon Glass1-0/+27
We create a separate header file for link symbols defined by the link scripts. It is helpful to have these all in one place and try to make them common across architectures. Since Linux already has a similar file, we bring this in even though many of the symbols there are not relevant to us. Each architecture has its own asm/sections.h where symbols specifc to that architecture can be added. For now everything except AVR32 just includes the generic header. One change is needed in arch/avr32/lib/board.c to make this conversion work. Reviewed-by: Tom Rini <trini@ti.com> (version 5) Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-13Refactor linker-generated arraysAlbert ARIBAUD1-1/+1
Refactor linker-generated array code so that symbols which were previously linker-generated are now compiler- generated. This causes relocation records of type R_ARM_ABS32 to become R_ARM_RELATIVE, which makes code which uses LGA able to run before relocation as well as after. Note: this affects more than ARM targets, as linker- lists span possibly all target architectures, notably PowerPC. Conflicts: arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds arch/arm/cpu/armv7/omap-common/u-boot-spl.lds board/ait/cam_enc_4xx/u-boot-spl.lds board/davinci/da8xxevm/u-boot-spl-da850evm.lds board/davinci/da8xxevm/u-boot-spl-hawk.lds board/vpac270/u-boot-spl.lds Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2013-03-05x86: Add error checking to x86 relocation codeSimon Glass1-2/+18
This does not actually change normal behaviour, but adds a check that should detect corruption of relocation data (e.g. by using BSS data prior to relocation). Also add additional debugging output when enabled. During this investigation, two situations have been seen: 1. calculate_relocation_address(): uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start; turns into 111166f: b8 83 c4 17 01 mov $0x117c483,%eax whih is beyond the end of bss: 0117b484 g .bss 00000000 __bss_end Somehow the __bss_end here is 255 bytes ahead. 2. do_elf_reloc_fixups(): uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start; Here the __text_start is 0 in the file: 1111d9f: bb a0 e0 13 01 mov $0x113e0a0,%ebx 1111da4: 81 ef 00 00 00 00 sub $0x0,%edi As it happens, both of these are in pre-relocation code. For these reasons we silent check and ignore bad relocations. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05x86: Support relocation of FDT on start-upSimon Glass7-2/+46
With CONFIG_OF_CONTROL we may have an FDT in the BSS region. Relocate it up with the rest of U-Boot to keep the rest of memory free. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05x86: Rearrange the output input to remove BSSSimon Glass1-7/+12
At present BSS data is including in the image, which wastes binary space. Remove it by rearranging the sections so that BSS is last. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05x86: Add an __end symbol to signal the end of the U-Boot binarySimon Glass3-1/+4
With this symbol we can easy append something (e.g. an FDT) to the U-Boot binary and access it from within U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05x86: Permit bootstage and timer data to be used prior to relocationSimon Glass4-18/+16
It is useful to be able to access the timer before U-Boot has relocated so that we can fully support bootstage. Add new global_data members to support this. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05x86: Add basic cache operationsSimon Glass1-0/+23
At present most x86 cache operations are undefined. Add a basic implementation for these. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05x86: Add function to get top of usable ramSimon Glass2-24/+22
The memory layout calculations are done in calculate_relocation_address(), and coreboot has its own version of this function. But in fact all we really need is to set the top of usable RAM, and then the base version will work as is. So instead of allowing the whole calculate_relocation_address() function to be replaced, create board_get_usable_ram_top() which can be used by a board to specify the top of the area where U-Boot relocations to. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-15x86: Remove unused real mode codeSimon Glass11-1794/+0
This code is pretty old and we want to support only 32-bit systems now. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-02-15x86: Rename CONFIG_NO_X86_RESET_VECTOR to CONFIG_X86_RESET_VECTORSimon Glass2-3/+3
Invert the polarity of this option to simplify the Makefile logic. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Gabe Black <gabeblack@chromium.org>
2013-02-15x86: Remove sc520 cpuSimon Glass12-1591/+0
This x86 CPU variant is no longer required as the boards that use it have been removed. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-02-09Clean up libfdt.h includesGerald Van Baren1-2/+1
The libfdt.h file is the definition file for libfdt. It is unnecessary to include other fdt header files (the necessary ones are pulled in by libfdt.h). Signed-off-by: Gerald Van Baren <gvb@unssw.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Stefan Roese <sr@denx.de>
2013-02-08treewide: include libfdt_env.h before fdt.hKim Phillips1-0/+1
and, if including libfdt.h which includes libfdt_env.h in the correct order, don't include fdt.h before libfdt.h. this is needed to get the fdt type definitions set from the project environment before fdt.h uses them. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Jerry Van Baren <gvb.uboot@gmail.com>
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