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* clocksource: assign non-zero priorities to all clocksourcesAhmad Fatoum2022-04-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most barebox clocksources have a zero priority and if multiple of them exist, but no higher priority ones, the first to call init_clock wins. Some supported boards like the Raspberry Pi additionally depended on initcall ordering to favor one zero-priority clocksource over another. With the move to deep probe and with Commit b641580deb8c ("of: platform: Ensure timers are probed early"), device tree blob iteration order could now dictate which clocksource is ultimately used. This led to a 20 times slower clock source being chosen on the Raspberry Pi, because the ARM architected timer was taken instead of the bcm2835 timer. Fix the root cause by assigning priorities to all clocksource drivers. Priorities chosen are: 50: device_initcall 60: coredevice_initcall 70: postcore_initcall 80: core_initcall These priorities are all below 100, which was previously the lowest positive priority and as they are positive, they win against the dummy clocksource. This should ensure no priority inversion happens. Fixes: b641580deb8c ("of: platform: Ensure timers are probed early") Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220425094857.674044-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* arch: add SPDX-License-Identifier to all .c filesAhmad Fatoum2022-01-052-0/+3
| | | | | | | | | Record GPL-2.0-only as license for all files lacking an explicit license statement. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-11-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* arch: add SPDX-License-Identifier to all .S filesAhmad Fatoum2022-01-053-0/+6
| | | | | | | | | Record GPL-2.0-only as license for all files lacking an explicit license statement. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-10-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* arch: add SPDX-License-Identifier to all headersAhmad Fatoum2022-01-0510-0/+19
| | | | | | | | | Record GPL-2.0-only as license for all files lacking an explicit license statement. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-9-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: add SPDX-License-Identifier for .gitignoreAhmad Fatoum2022-01-051-0/+2
| | | | | | | | | Makes the files not appear when searching for files that lack SPDX-License-Identifier. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: add SPDX-License-Identifier for Kbuild/KconfigAhmad Fatoum2022-01-056-0/+11
| | | | | | | | | | | | | | | To verify only Kconfig/Makefile is touched: git show --numstat --format=oneline HEAD | grep -v 'Kconfig\|Makefile' will print only arch/powerpc/Kbuild. To verify nothing unexpected is added: git show -U0 | grep '^-[^-]\|^+[^+]' | sort -u Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-3-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/testing'Sascha Hauer2021-06-161-0/+2
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| * openrisc: set default KBUILD_IMAGEAhmad Fatoum2021-06-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | For non-multi-image configuration, KBUILD_IMAGE is taken as the image to install. It was so far not set for openRISC. Define it, so it can be used by the make install stage, e.g. to collect artifacts after a CI run. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210604084704.17410-6-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | of: propagate errors inside barebox_register_{of, fdt} into initcallsAhmad Fatoum2021-06-021-3/+1
|/ | | | | | | | | | | | | | | Errors during device tree registration, while uncommon, are really annoying, because the system may limp along and it's not clear where the misbehavior originates from. Failing the initcall of the device tree would improve user experience in that error case. There is intentionally no early exit on error cases to give barebox a chance to probe the serial driver to actually report errors when DEBUG_LL is disabled. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210531071239.30653-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: Implement setjmp/longjmp/initjmpStafford Horne2021-03-174-0/+75
| | | | | | | | | Tested on or1ksim and this seems to work. This is mostly the same as the glibc port implementation, but adjusted as per requirements per barebox. Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: Add linkage.hStafford Horne2021-03-171-0/+7
| | | | | | | Copied from glibc minus bits we don't need. Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: Add gitignore for dtb filesStafford Horne2021-03-171-0/+1
| | | | | Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: Use movhi to zero registersStafford Horne2021-03-171-3/+3
| | | | | | | | This is needed when running on FPGA as registers are not guaranteed to be initialized to 0. Using movhi allows to explicitly set 0. Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: Define the elf binary entry pointStafford Horne2021-03-041-0/+1
| | | | | | | | | Entry is used by qemu to find where to start booting, we define this to the 0x100 reset vector as is done by default when the CPU resets. This fixes the qemu boot issue. Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* of: Add common device tree register functionSascha Hauer2020-10-121-7/+1
| | | | | | | | The different architectures duplicate some code around unflattening and registering the device tree. Add common functions to reduce this duplication. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* restart: give all restart handlers a descriptive nameAhmad Fatoum2020-09-151-1/+1
| | | | | | | | | | | | | With incoming changes to choose a specific reset method, give all currently unnamed "default" reset handlers a name: - soc reset via SoC-specific means - soc-wdt reset via SoC watchdog timer - vector reset via jump to reset vector - efi reset via EFI firmware Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: Make locally used functions staticSascha Hauer2020-09-152-2/+2
| | | | | | | Make only locally used functions static to avoid -Wmissing-prototypes warnings. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: Add missing includesSascha Hauer2020-09-152-0/+2
| | | | | | Add missing includes to avoid -Wmissing-prototypes warnings. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: Add prototypes for functions called from assemblySascha Hauer2020-09-152-0/+6
| | | | | | | | Some functions are called from assembly only. There's no prototype for them so this leads to -Wmissing-prototypes warnings. Add a prototype right aboce the functions to avoid these warnings. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* arch: include <asm-generic/int-ll64.h> from <asm/types.h>Masahiro Yamada2020-05-181-47/+1
| | | | | | | | | | | | | | | | Many architectures duplicate the same fixed type definitions as in <asm-generic/int-ll64.h>. Include <asm-generic/int-ll64.h> from <asm/types.h>, and remove the duplicated code. Note: Linux commit 0c79a8e29b5f ("asm/types.h: Remove include/asm-generic/int-l64.h") unified the kernel space definition into int-ll64.h. Barebox also adopts int-ll64. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/misc'Sascha Hauer2020-05-145-15/+0
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| * treewide: remove references to CREDITSUwe Kleine-König2020-04-275-15/+0
| | | | | | | | | | | | | | | | The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97 ("Remove the CREDITS file"). Remove references to it from several files. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | kbuild: prefix compiler flag variables with KBUILD_Masahiro Yamada2020-04-271-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | In old days, Linux also used to use well-known variables such CFLAGS, CPPFLAGS, etc. They were prefixed with KBUILD_ presumably for preventing users from overriding them accidentally. Rename as follows: CFLAGS -> KBUILD_CFLAGS AFLAGS -> KBUILD_AFLAGS CPPFLAGS -> KBUILD_CPPFLAGS LDFLAGS -> KBUILD_LDFLAGS HOSTCFLAGS -> KBUILD_HOSTCFLAGS HOSTCXXFLAGS -> KBUILD_HOSTCXXFLAGS HOSTLDFLAGS -> KBUILD_HOSTLDFLAGS HOST_LOADLIBES -> KBUILD_HOSTLDLIBS HOSTCFLAGS, HOSTCXXFLAGS, HOSTLDFLAGS, HOSTLDLIBS are re-used to allow users to pass-in additional flags to the host compiler. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lds: Add and use RO_DATA_SECTION macroSascha Hauer2019-10-141-10/+1
| | | | | | | | | We have many different pointer arrays which we put into linker sections and each time there's one added we have to adjust all linker scripts. This adds a common RO_DATA_SECTION define and uses it for all architectures. This makes it easier to add a new linker array. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lds: Move start/end address variables into definesSascha Hauer2019-10-141-20/+2
| | | | | | | | | | | For the older section defines we specify the start and end addresses outside the macro which means we have to repeat them in each linker script. Make the start/end addresses part of the define to simplify things. While at it, add a BAREBOX_ prefix to the INITCALLS and EXITCALLS macros for consistency to the other defines. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sam Ravnborg <sam@ravnborg.org>
* barebox.lds: Remove unnecessary bracesSascha Hauer2019-10-141-1/+1
| | | | | | | The BAREBOX_CLK_TABLE and BAREBOX_DTB macros are defines that do not take a parameter, so we can remove the braces. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Kconfig: retire empty <asm/barebox.h>Ahmad Fatoum2019-08-301-4/+0
| | | | | | | With the latest changes, this file is empty on all archs. Drop it. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* arch: add KBUILD_DEFCONFIG to allow "make defconfig"Masahiro Yamada2019-05-131-0/+2
| | | | | | | | | | | | | | | | | | | | Currently, "make defconfig" is only supported for sandbox and x86. I set KBUILD_DEFCONFIG to support "make defconfig" where I was able to find a suitable one. nios2 and openrisc have a single generic_defconfig, so it is definitely good for KBUILD_DEFCONFIG. For arm, mips, I assume qemu is a preferred choice over a real board. blackfin has only one defconfig. Since it is inactive (it is gone in Linux), so no more defconfig will come in. I am not sure about ppc and riscv, so I did not touch them. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* move umode_t typedef from asm/types.h to linux/types.hAntony Pavlov2019-01-181-2/+0
| | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* kconfig: include common Kconfig files from top-level KconfigAntony Pavlov2018-12-031-8/+0
| | | | | | | | | | | | | Based on this linux kernel commit: > commit 1572497cb0e6d2016078bc9d5a95786bb878389f > Author: Christoph Hellwig <hch@lst.de> > Date: Tue Jul 31 13:39:30 2018 +0200 > > kconfig: include common Kconfig files from top-level Kconfig Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: remove function prototypes from the pastSascha Hauer2018-03-211-5/+0
| | | | | | | Several functions do not exist anymore for a long time now. Remove their prototypes. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ratp: implement generic command supportAleksander Morgado2018-03-011-0/+4
| | | | | | | | | | | | | | | | | | | The RATP implementation now allows executing generic commands with a binary interface: binary requests are received and binary responses are returned. Each command can define its own RATP request contents (e.g. to specify command-specific options) as well as its own RATP response contents (if any data is to be returned). Each command is associated with a pair of numeric unique request and response IDs, and for easy reference these IDs are maintained in the common ratp_bb header. Modules may override generic implemented commands or include their own new ones (as long as the numeric IDs introduced are unique). Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: fix call to restart_handler_register_fnFranck Jullien2017-03-301-1/+1
| | | | | Signed-off-by: Franck Jullien <franck.jullien@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/defenv'Sascha Hauer2016-10-101-1/+0
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| * Make generic default environment type a use choiceSascha Hauer2016-10-101-1/+0
| | | | | | | | | | | | | | | | So far it was hardcoded for each board if defenv-1 or defenv-2 is used. Make this a user choice so that a particular board no longer enforces a defenv type. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | of_unflatten_dtb(): Check return value with IS_ERRAndrey Smirnov2016-09-051-1/+1
|/ | | | | | | | Of_unflatten_dtb returns a ERR_PTR value so checking it against NULL is incorrect. Fix it in all of the places where this was happening. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* rework remap_rangeSascha Hauer2015-11-031-13/+1
| | | | | | | | | | | | | | | | | | remap_range is for remapping regions with different cache attributes. It is implemented for ARM and PowerPC only, the other architectures only provide stubs. Currently the new cache attributes are passed in an architecture specific way and the attributes have to be retrieved by calls to mmu_get_pte_cached_flags() and mmu_get_pte_uncached_flags(). Make this simpler by providing architecture independent flags which can be directly passed to remap_range() Also provide a MAP_ARCH_DEFAULT flag and a arch_can_remap() function. The MAP_ARCH_DEFAULT defaults to whatever caching type the architecture has as default. the arch_can_remap() function returns true if the architecture can change the cache attributes, false otherwise. This allows the memtest code to better find out what it has to do. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* restart: replace reset_cpu with registered restart handlersSascha Hauer2015-08-271-2/+9
| | | | | | | | | | | | | | | | | | | | | | This replaces the reset_cpu() function which every SoC or board must provide with registered handlers. This makes it possible to have multiple reset functions for boards which have multiple ways to reset the machine. Also boards which have no way at all to reset the machine no longer have to provide a dummy reset_cpu() function. The problem this solves is that some machines have external PMICs or similar to reset the system which have to be preferred over the internal SoC reset, because the PMIC can reset not only the SoC but also the external devices. To pick the right way to reset a machine each handler has a priority. The default priority is 100 and all currently existing restart handlers are registered with this priority. of_get_restart_priority() allows to retrieve the priority from the device tree which makes it possible for boards to give certain restart handlers a higher priority in order to use this one instead of the default one. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* exitcall: move arch_shutdown to exitcall infrastructureHerve Codina2015-07-131-4/+0
| | | | | Signed-off-by: Herve Codina <Herve.CODINA@celad.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* exitcall: Add exitcall infrastructureHerve Codina2015-07-131-0/+4
| | | | | | | | exitcall infrastructure is based on initcall infrastructure. It allows to have and use exit call hooks on barebox shutdown. Signed-off-by: Herve Codina <Herve.CODINA@celad.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: use generic posix_types.hSascha Hauer2015-06-031-71/+1
| | | | | | | Use generic asm-generic/posix_types.h instead of repeating the typedefs. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* introduce bitsperlong.h for remaining architecturesSascha Hauer2015-06-032-1/+2
| | | | | | | | This introduces the bitsperlong.h file for the remaining architectures. It's purpose is to define BITS_PER_LONG which in the next step can be used by a generic posix_types.h file. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* dma: Use generic place for dma_addr_t typedefSascha Hauer2015-05-221-4/+0
| | | | | | | | | Instead of letting all architectures define their own dma_addr_t use a common place in include/linux/types.h and use a Kconfig symbol that architectures can select to define the width of dma_addr_t. The same is done in the Kernel. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: barebox.lds.S: fix BFD format namesAntony Pavlov2015-02-101-1/+1
| | | | | | | | | | | | | Here is Franck Jullien's comment (see http://lists.infradead.org/pipermail/barebox/2015-February/022259.html): > Until now, the official openrisc toolchain was called or32. > However, the new one (and maintained one) is called or1k. So we need > to change "elf32-or32" to "elf32-or1k" in barebox.lds.S. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Cc: Franck Jullien <franck.jullien@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* kbuild: move asm-offsets.h rule to ./KbuildMasahiro Yamada2015-01-081-0/+18
| | | | | | | | | | | | | | | Currently, MIPS is the only architecture that needs include/generated/asm-offsets.h, but we have got ./Kbuild file now. It is a good reason to move asm-offsets.h rule from arch/mips/Makefile to ./Kbuild and add dummy asm-offsets.c for the other architectures. asm-offsets.h would be useful for all the architectures. This commit does not implement include/generated/bounds.h, but if necessary, it is easy to implement it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: Reuse init_clock() return value for clocksource driversAlexander Shiyan2014-11-101-3/+1
| | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: generic_defconfig: enable device tree stuffAntony Pavlov2014-09-091-13/+22
| | | | | | | | Also enable iomem and miitool. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Cc: Franck Jullien <franck.jullien@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: generic board: reduce platform codeAntony Pavlov2014-09-092-27/+2
| | | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Cc: Franck Jullien <franck.jullien@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: dts: import or1ksim.dts from linux-3.16Antony Pavlov2014-09-091-0/+51
| | | | | | | | | | | | There are some minor changes with original linux-3.16 file: * the 'model' attribute is added (it used for barebox banner board name); * all "opencores,*-rtlsvn*" 'compatible' attribute values are dropped; these values are not actually used in the device drivers. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Cc: Franck Jullien <franck.jullien@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* openrisc: add initial device tree supportAntony Pavlov2014-09-096-0/+68
| | | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Cc: Franck Jullien <franck.jullien@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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