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Commit d2b310b0234c ("ARM: debug: Use generic 8250 debug_ll for omap2 and
omap3/4/5 common uarts") adds address definitions of DEBUG_UART_PHYS for
OMAP2, OMAP3, OMAP4 and OMAP5 in ./arch/arm/Kconfig.debug.
These definitions depend on DEBUG_OMAP{2,3,4,5}UART{1,2}; however, only
DEBUG_OMAP2UART{1,2} are defined in ./arch/arm/Kconfig.debug, and
DEBUG_OMAP{3,4,5}UART{1,2} are not defined. Hence, the script
./scripts/checkkconfigsymbols.py warns here on non-existing symbols.
Simply reuse the config DEBUG_OMAP2UART{1,2}; there is no need to define
separate config symbols for OMAP{3,4,5}. So, just delete the dead
references to DEBUG_OMAP{3,4,5}UART{1,2}.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20231025112136.3445-1-lukas.bulwahn@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Pull ARM udpates from Russell King:
- Improve Kconfig help text for Cortex A8 and Cortex A9 errata
- Kconfig spelling and grammar fixes
- Allow kernel-mode VFP/Neon in softirq context
- Use Neon in softirq context
- Implement AES-CTR/GHASH version of GCM
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9289/1: Allow pre-ARMv5 builds with ld.lld 16.0.0 and newer
ARM: 9288/1: Kconfigs: fix spelling & grammar
ARM: 9286/1: crypto: Implement fused AES-CTR/GHASH version of GCM
ARM: 9285/1: remove meaningless arch/arm/mach-rda/Makefile
ARM: 9283/1: permit non-nested kernel mode NEON in softirq context
ARM: 9282/1: vfp: Manipulate task VFP state with softirqs disabled
ARM: 9281/1: improve Cortex A8/A9 errata help text
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Commit 67d3928c3df5 ("ARM: omap1: remove unused board files") removes
configs DEBUG_OMAP7XXUART{1,2,3}.
The config DEBUG_UART_8250_SHIFT still refers to those removed configs.
Remove those obsolete references.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Fix spelling (reported by codespell) and grammar in Arm Kconfig files.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
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The platform was deprecated in commit 6a5e69c7ddea ("ARM: s3c: mark
as deprecated and schedule removal") and can be removed. This includes
all files that are exclusively for s3c24xx and not shared with s3c64xx,
as well as the glue logic in Kconfig and the maintainer file entries.
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Christer Weinigel <christer@weinigel.se>
Cc: Guillaume GOURAT <guillaume.gourat@nexvision.tv>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Simtec Linux Team <linux@simtec.co.uk>
Cc: openmoko-kernel@lists.openmoko.org
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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All Kconfig entries marked as "depends on UNUSED_BOARD_FILES"
and their direct dependencies are removed here as planned.
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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All board support that was marked as 'unused' earlier can
now be removed, leaving the five machines that that still
had someone using them in 2022, or that are supported in
qemu.
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This was marked as unused in 5.19 and can now be removed
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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cns3xxx was marked as unused a while ago, and gets removed
entirely now.
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Some options like CONFIG_DEBUG_UNCOMPRESS and CONFIG_CMDLINE_FORCE are
fundamentally incompatible with portable kernels but are currently allowed
in all configurations. Other options like XIP_KERNEL are essentially
useless after the completion of the multiplatform conversion.
Repurpose the existing CONFIG_ARCH_MULTIPLATFORM option to decide
whether the resulting kernel image is meant to be portable or not,
and using this to guard all of the known incompatible options.
This is similar to how the RISC-V kernel handles the CONFIG_NONPORTABLE
option (with the opposite polarity).
A few references to CONFIG_ARCH_MULTIPLATFORM were left behind by
earlier clanups and have to be removed now up.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The top-level platform selection is mostly meaningless these days after
almost everything is sorted below the CONFIG_ARCH_MULTIPLATFORM, with
the only exception being the 20+ year old StrongARM based machines.
Make this more consistent by removing the entire choice statement and
moving the StrongARM specific options into regular platform specific
Kconfig files.
The three platforms (footbridge, rpc and sa1100) are still mutually
exclusive and cannot coexist with other ARMv4/v5 machines, but since
there are only three of them and we will not add more, this can be
expressed using Kconfig 'depends on' statements.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Prepare for the BCM63138 ARCH_BCM_63XX migration to ARCH_BCMBCA. Make
DEBUG_BCM63XX_UART depending on ARCH_BCMBCA.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARMv4T/v5 multiplatform support from Arnd Bergmann:
"This series has been 12 years in the making, it mostly finishes the
work that was started with the founding of Linaro to clean up platform
support in the kernel.
The largest change here is a cleanup of the omap1 platform, which is
the final ARM machine type to get converted to the common-clk
subsystem. All the omap1 specific drivers are now made independent of
the mach/*.h headers to allow the platform to be part of a generic
ARMv4/v5 multiplatform kernel.
The last bit that enables this support is still missing here while we
wait for some last dependencies to make it into the mainline kernel
through other subsystems.
The s3c24xx, ixp4xx, iop32x, ep93xx and dove platforms were all almost
at the point of allowing multiplatform kernels, this work gets
completed here along with a few additional cleanup. At the same time,
the s3c24xx and s3c64xx are now deprecated and expected to get removed
in the future.
The PXA and OMAP1 bits are in a separate branch because of
dependencies. Once both branches are merged, only the three Intel
StrongARM platforms (RiscPC, Footbridge/NetWinder and StrongARM1100)
need separate kernels, and there are no plans to include these"
* tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits)
ARM: ixp4xx: Consolidate Kconfig fixing issue
ARM: versatile: Add missing of_node_put in dcscb_init
ARM: config: Refresh IXP4xx config after multiplatform
ARM: omap1: add back omap_set_dma_priority() stub
ARM: omap: fix missing declaration warnings
ARM: omap: fix address space warnings from sparse
ARM: spear: remove include/mach/ subdirectory
ARM: davinci: remove include/mach/ subdirectory
ARM: omap2: remove include/mach/ subdirectory
integrator: remove empty ap_init_early()
ARM: s3c: fix include path
MAINTAINERS: omap1: Add Janusz as an additional maintainer
ARM: omap1: htc_herald: fix typos in comments
ARM: OMAP1: fix typos in comments
ARM: OMAP1: clock: Remove noop code
ARM: OMAP1: clock: Remove unused code
ARM: OMAP1: clock: Fix UART rate reporting algorithm
ARM: OMAP1: clock: Fix early UART rate issues
ARM: OMAP1: Prepare for conversion of OMAP1 clocks to CCF
ARM: omap1: fix build with no SoC selected
...
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Add support for low-level debugging on FLEXCOM USART of
LAN966 SoC.
Signed-off-by: Kavyasree Kotagiri <kavyasree.kotagiri@microchip.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20220513092530.19213-1-kavyasree.kotagiri@microchip.com
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The address range 0xfee00000-0xfeffffff is used for PCI and
PCMCIA I/O port mappings, but OMAP1 has its static mappings
there as well.
Move the OMAP1 addresses a little higher to avoid crashing
at boot.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Pull ARM updates from Russell King:
"Updates for IRQ stacks and virtually mapped stack support, and ftrace:
- Support for IRQ and vmap'ed stacks
This covers all the work related to implementing IRQ stacks and
vmap'ed stacks for all 32-bit ARM systems that are currently
supported by the Linux kernel, including RiscPC and Footbridge. It
has been submitted for review in four different waves:
- IRQ stacks support for v7 SMP systems [0]
- vmap'ed stacks support for v7 SMP systems[1]
- extending support for both IRQ stacks and vmap'ed stacks for all
remaining configurations, including v6/v7 SMP multiplatform
kernels and uniprocessor configurations including v7-M [2]
- fixes and updates in [3]
- ftrace fixes and cleanups
Make all flavors of ftrace available on all builds, regardless of
ISA choice, unwinder choice or compiler [4]:
- use ADD not POP where possible
- fix a couple of Thumb2 related issues
- enable HAVE_FUNCTION_GRAPH_FP_TEST for robustness
- enable the graph tracer with the EABI unwinder
- avoid clobbering frame pointer registers to make Clang happy
- Fixes for the above"
[0] https://lore.kernel.org/linux-arm-kernel/20211115084732.3704393-1-ardb@kernel.org/
[1] https://lore.kernel.org/linux-arm-kernel/20211122092816.2865873-1-ardb@kernel.org/
[2] https://lore.kernel.org/linux-arm-kernel/20211206164659.1495084-1-ardb@kernel.org/
[3] https://lore.kernel.org/linux-arm-kernel/20220124174744.1054712-1-ardb@kernel.org/
[4] https://lore.kernel.org/linux-arm-kernel/20220203082204.1176734-1-ardb@kernel.org/
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (62 commits)
ARM: fix building NOMMU ARMv4/v5 kernels
ARM: unwind: only permit stack switch when unwinding call_with_stack()
ARM: Revert "unwind: dump exception stack from calling frame"
ARM: entry: fix unwinder problems caused by IRQ stacks
ARM: unwind: set frame.pc correctly for current-thread unwinding
ARM: 9184/1: return_address: disable again for CONFIG_ARM_UNWIND=y
ARM: 9183/1: unwind: avoid spurious warnings on bogus code addresses
Revert "ARM: 9144/1: forbid ftrace with clang and thumb2_kernel"
ARM: mach-bcm: disable ftrace in SMC invocation routines
ARM: cacheflush: avoid clobbering the frame pointer
ARM: kprobes: treat R7 as the frame pointer register in Thumb2 builds
ARM: ftrace: enable the graph tracer with the EABI unwinder
ARM: unwind: track location of LR value in stack frame
ARM: ftrace: enable HAVE_FUNCTION_GRAPH_FP_TEST
ARM: ftrace: avoid unnecessary literal loads
ARM: ftrace: avoid redundant loads or clobbering IP
ARM: ftrace: use trampolines to keep .init.text in branching range
ARM: ftrace: use ADD not POP to counter PUSH at entry
ARM: ftrace: ensure that ADR takes the Thumb bit into account
ARM: make get_current() and __my_cpu_offset() __always_inline
...
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Enable the function graph tracer in combination with the EABI unwinder,
so that Thumb2 builds or Clang ARM builds can make use of it.
This involves using the unwinder to locate the return address of an
instrumented function on the stack, so that it can be overridden and
made to refer to the ftrace handling routines that need to be called at
function return.
Given that for these builds, it is not guaranteed that the value of the
link register is stored on the stack, fall back to the stack slot that
will be used by the ftrace exit code to restore LR in the instrumented
function's execution context.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Add new kconfig target 'make mod2noconfig', which will be useful to
speed up the build and test iteration.
- Raise the minimum supported version of LLVM to 11.0.0
- Refactor certs/Makefile
- Change the format of include/config/auto.conf to stop double-quoting
string type CONFIG options.
- Fix ARCH=sh builds in dash
- Separate compression macros for general purposes (cmd_bzip2 etc.) and
the ones for decompressors (cmd_bzip2_with_size etc.)
- Misc Makefile cleanups
* tag 'kbuild-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
kbuild: add cmd_file_size
arch: decompressor: remove useless vmlinux.bin.all-y
kbuild: rename cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}
kbuild: drop $(size_append) from cmd_zstd
sh: rename suffix-y to suffix_y
doc: kbuild: fix default in `imply` table
microblaze: use built-in function to get CPU_{MAJOR,MINOR,REV}
certs: move scripts/extract-cert to certs/
kbuild: do not quote string values in include/config/auto.conf
kbuild: do not include include/config/auto.conf from shell scripts
certs: simplify $(srctree)/ handling and remove config_filename macro
kbuild: stop using config_filename in scripts/Makefile.modsign
certs: remove misleading comments about GCC PR
certs: refactor file cleaning
certs: remove unneeded -I$(srctree) option for system_certificates.o
certs: unify duplicated cmd_extract_certs and improve the log
certs: use $< and $@ to simplify the key generation rule
kbuild: remove headers_check stub
kbuild: move headers_check.pl to usr/include/
certs: use if_changed to re-generate the key when the key type is changed
...
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Pull ARM updates from Russell King:
- amba bus irq rework
- add kfence support
- support for Cortex M33 and M55 CPUs
- kbuild updates for decompressor
- let core code manage thread_info::cpu
- avoid unpredictable NOP encoding in decompressor
- reduce information printed in calltraces
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: reduce the information printed in call traces
ARM: 9168/1: Add support for Cortex-M55 processor
ARM: 9167/1: Add support for Cortex-M33 processor
ARM: 9166/1: Support KFENCE for ARM
ARM: 9165/1: mm: Provide is_write_fault()
ARM: 9164/1: mm: Provide set_memory_valid()
ARM: 9163/1: amba: Move of_amba_device_decode_irq() into amba_probe()
ARM: 9162/1: amba: Kill sysfs attribute file of irq
ARM: 9161/1: mm: mark private VM_FAULT_X defines as vm_fault_t
ARM: 9159/1: decompressor: Avoid UNPREDICTABLE NOP encoding
ARM: 9158/1: leave it to core code to manage thread_info::cpu
ARM: 9154/1: decompressor: do not copy source files while building
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A while back, Linus complained about the numeric values printed by the
ARM backtracing code. Printing these values does not make sense if one
does not have access to the kernel ELF image (as is normally the case
when helping a third party on a mailing list), but if one does, they
can be very useful to find the code, rather than searching for the
function name, and then doing hex math to work out where the backtrace
entry is referring to.
Provide an option to control whether this information is included,
which will only be visible if EXPERT is enabled.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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This reverts commit 7411cfc3c91a08a884463bbc7623087ecc2efdd8.
The minimum supported version of LLVM has been raised to 11.0.0, meaning
this check is always true, so it can be dropped.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Since commit 4b563a066611 ("ARM: imx: Remove imx21 support"), the config
DEBUG_IMX21_IMX27_UART is really only debug support for IMX27.
So, rename this option to DEBUG_IMX27_UART and adjust dependencies in
Kconfig and rename the definitions to IMX27 as further clean-up.
This issue was discovered with ./scripts/checkkconfigsymbols.py, which
reported that DEBUG_IMX21_IMX27_UART depends on the non-existing config
SOC_IMX21.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add sama7g5 SoC debug uart on Flexcom3. This is the UART that the
ROM bootloader uses.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210409113116.482199-2-eugen.hristev@microchip.com
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC updates from Olof Johansson:
"A few SoC (code) changes have queued up this cycle, mostly for minor
changes and some refactoring and cleanup of legacy platforms. This
branch also contains a few of the fixes that weren't sent in by the
end of the release (all fairly minor).
- Adding an additional maintainer for the TEE subsystem (Sumit Garg)
- Quite a significant modernization of the IXP4xx platforms by Linus
Walleij, revisiting with a new PCI host driver/binding, removing
legacy mach/* include dependencies and moving platform
detection/config to drivers/soc. Also some updates/cleanup of
platform data.
- Core power domain support for Tegra platforms, and some
improvements in build test coverage by adding stubs for compile
test targets.
- A handful of updates to i.MX platforms, adding legacy (non-PSCI)
SMP support on i.MX7D, SoC ID setup for i.MX50, removal of platform
data and board fixups for iMX6/7.
... and a few smaller changes and fixes for Samsung, OMAP, Allwinner,
Rockchip"
* tag 'arm-soc-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (53 commits)
MAINTAINERS: Add myself as TEE subsystem reviewer
ixp4xx: fix spelling mistake in Kconfig "Devce" -> "Device"
hw_random: ixp4xx: Add OF support
hw_random: ixp4xx: Add DT bindings
hw_random: ixp4xx: Turn into a module
hw_random: ixp4xx: Use SPDX license tag
hw_random: ixp4xx: enable compile-testing
pata: ixp4xx: split platform data to its own header
soc: ixp4xx: move cpu detection to linux/soc/ixp4xx/cpu.h
PCI: ixp4xx: Add a new driver for IXP4xx
PCI: ixp4xx: Add device tree bindings for IXP4xx
ARM/ixp4xx: Make NEED_MACH_IO_H optional
ARM/ixp4xx: Move the virtual IObases
MAINTAINERS: ARM/MStar/Sigmastar SoCs: Add a link to the MStar tree
ARM: debug: add UART early console support for MSTAR SoCs
ARM: dts: ux500: Fix LED probing
ARM: imx: add smp support for imx7d
ARM: imx6q: drop of_platform_default_populate() from init_machine
arm64: dts: rockchip: Update RK3399 PCI host bridge window to 32-bit address memory
soc/tegra: fuse: Fix Tegra234-only builds
...
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into arm/soc
This is a major chunk of IXP4xx modernization:
- Fist we move some registers around to make room for
the predetermined PCI I/O space.
- Then we add some Kconfig options to make it possible
to use the old PCI driver in parallell with the new
shiny one.
- Then we add the new PCI driver and some bindings for
it.
- On top of this we add an (ages old) patch from Arnd
that centralize the CPU/SoC detection in drivers/soc
and make the header a standard Linux header to avoid
the <mach/*> business in drivers.
- Then we split out and modernize some platform data
headers for pata, and hwrandom, and top it up with
DT bindings and support for hwrandom.
* tag 'ixp4xx-arm-soc-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ixp4xx: fix spelling mistake in Kconfig "Devce" -> "Device"
hw_random: ixp4xx: Add OF support
hw_random: ixp4xx: Add DT bindings
hw_random: ixp4xx: Turn into a module
hw_random: ixp4xx: Use SPDX license tag
hw_random: ixp4xx: enable compile-testing
pata: ixp4xx: split platform data to its own header
soc: ixp4xx: move cpu detection to linux/soc/ixp4xx/cpu.h
PCI: ixp4xx: Add a new driver for IXP4xx
PCI: ixp4xx: Add device tree bindings for IXP4xx
ARM/ixp4xx: Make NEED_MACH_IO_H optional
ARM/ixp4xx: Move the virtual IObases
Link: https://lore.kernel.org/r/CACRpkdbw6HSpp7k6q1FYGmtafLmdAu8bFnpHQOdfBDYYsdLbkw@mail.gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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UART1, UART2 and the expansion bus config registers
are the only registers mapped in a fixed location
when using device tree.
For device tree we also want to get rid of the custom
<mach/io.h> for IXP4xx. So we need to undefine
CONFIG_NEED_MACH_IO_H. Doing that activates the fixed
mapping of the PCI IO space to PCI_IO_VIRT_BASE which
is hardcoded to 0xFEE00000 and this would collide with
the old fixed mappings.
Move the fixed virtual IO base address from 0xFEF00000
to 0xFEC00000 in order to avoid the collision.
For the OF-only boot path let's even cut the reliance
on <mach/io.h> and just hardcode the one single virtbase
we need apart from the UART, which is hardcoded in
Kconfig.debug.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khalasa@piap.pl>
Cc: Zoltan HERPAI <wigyori@uid0.hu>
Cc: Raylynn Knight <rayknight@me.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This adds the debug_ll uart for the PM UART found on armv7-based MStar
SoCs.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Acked-by: Daniel Palmer <daniel@thingy.jp>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Mohammed Billoo <mohammed.billoo@gmail.com>
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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When linking aspeed_g5_defconfig with ld.lld 10.0.1, the following error
occurs:
ld.lld: error: .tmp_vmlinux.kallsyms1:(.ARM.exidx+0x34D98): relocation
R_ARM_PREL31 out of range: 2135538592 is not in [-1073741824,
1073741823]
This was resolved in ld.lld 11.0.0 but the minimum supported version of
ld.lld for the kernel is 10.0.1. Prevent CONFIG_UNWINDER_ARM from being
selected in this case so that the problematic sections cannot be
created.
Link: https://github.com/ClangBuiltLinux/linux/issues/732
Link: https://github.com/llvm/llvm-project/commit/48aebfc908ba7b9372aaa478a9c200789491096e
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Simplify 32-bit and 64-bit Intel SoCFPGA Kconfig options by having only
one for both of them. This the common practice for other platforms.
Additionally, the ARCH_SOCFPGA is too generic as SoCFPGA designs come
from multiple vendors.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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Pull ARM updates from Russell King:
- Generalise byte swapping assembly
- Update debug addresses for STI
- Validate start of physical memory with DTB
- Do not clear SCTLR.nTLSMD in decompressor
- amba/locomo/sa1111 devices remove method return type is void
- address markers for KASAN in page table dump
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9065/1: OABI compat: fix build when EPOLL is not enabled
ARM: 9055/1: mailbox: arm_mhuv2: make remove callback return void
amba: Make use of bus_type functions
amba: Make the remove callback return void
vfio: platform: simplify device removal
amba: reorder functions
amba: Fix resource leak for drivers without .remove
ARM: 9054/1: arch/arm/mm/mmu.c: Remove duplicate header
ARM: 9053/1: arm/mm/ptdump:Add address markers for KASAN regions
ARM: 9051/1: vdso: remove unneded extra-y addition
ARM: 9050/1: Kconfig: Select ARCH_HAVE_NMI_SAFE_CMPXCHG where possible
ARM: 9049/1: locomo: make locomo bus's remove callback return void
ARM: 9048/1: sa1111: make sa1111 bus's remove callback return void
ARM: 9047/1: smp: remove unused variable
ARM: 9046/1: decompressor: Do not clear SCTLR.nTLSMD for ARMv7+ cores
ARM: 9045/1: uncompress: Validate start of physical memory against passed DTB
ARM: 9042/1: debug: no uncompress debugging while semihosting
ARM: 9041/1: sti LL_UART: add STiH418 SBC UART0 support
ARM: 9040/1: use DEBUG_UART_PHYS and DEBUG_UART_VIRT for sti LL_UART
ARM: 9039/1: assembler: generalize byte swapping macro into rev_l
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The build robots have discovered that uncompress debugging
and semihosting does not play well together.
This is due to many factors but in general semihosting
debug needs to be rewritten to work the same way as any
LL_DEBUG, e.g. with a header in
arch/arm/include/debug/semihosting.S
This is a long term solution and needs testing on real
hardware and/or software models using semihosting.
For now disable uncompress debugging under semihosting.
Link: https://lore.kernel.org/linux-arm-kernel/CAK8P3a2MyLnULmUr4zgzkiWPiYfp+Xs8ruz9_q-PugVf_9DCCw@mail.gmail.com/
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Suggested-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Add the entry for the STiH418 SBC UART0 low level uart.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Update the sti platform LL_UART support to rely on
CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT from Kconfig
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The Ericsson U300 platform was one of two ARM929 based SoC platforms for
mobile phones in ST-Ericsson after the merger of Ericsson with ST-NXP
into ST-Ericsson, the other one being the ST Nomadik.
The platform was not widely adopted in Linux based systems and was
replaced with the far superior ST-Ericsson U8500 in 2011, but Linus
Walleij kept maintaining the code for the whole time.
Linus continues to use the Nomadik machine, but decided to drop
u300 from the kernel as part of this year's spring cleaning.
Thanks for having maintained it all these years.
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/lkml/CACRpkdbJkiHR9FSfJTH_5d_qRU1__dRXHM1TL40iqNRKbGQfrQ@mail.gmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The ZTE ZX set-top-box SoC platform was added in 2015 by Jun Nie, with
Baoyou Xie and Shawn Guo subsequently becoming maintainers after the
addition of the 64-bit variant.
However, the only machines that were ever supported upstream are the
reference designs, not actual set-top-box devices that would benefit
from this support. All ZTE set-top-boxes from the past few years seem
to be based on third-party SoCs. While there is very little information
about zx296702 and zx296718 on the web, I found some references to other
chips from the same family, such as zx296716 and zx296719, which were
never submitted for upstream support. Finally, there is no support for
the GPU on either of them, with the lima and panfrost device drivers
having been added after work on the zx platform had stopped.
Shawn confirmed that he has not seen any interest in this platform for
the past four years, and that it can be removed.
Thanks to Jun and Shawn for maintaining this platform over the past
five years.
Cc: Jun Nie <jun.nie@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The SiRF Prima2 and Atlas platform code was contributed by Cambridge
Silicon Radio (CSR) after aquiring the original SiRF company, and
maintained by Barry Song. CSR was subsequently acquired by Qualcomm,
who no longer have an interest in maintaining the SoC platform but
instead have released more recent SoCs for the same market in the
Snapdragon family.
As Barry is no longer working for the company, nobody else there
wants to maintain it, and there are no third-party users, the
best way forward seems to be to completely remove it.
Thanks to Barry for maintaining the platform for the past ten years.
Cc: Barry Song <baohua@kernel.org>
Link: https://lore.kernel.org/lkml/c969392572604b98bcb3be44048c3165@hisilicon.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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I didn't touch this code since it served as a platform to introduce
ARMv7-M support to Linux. The only known machine that runs Linux has only
4 MiB of RAM (that originally only exists to hold the display's framebuffer).
There are no known users and no further use foreseeable, so drop the
code.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210115155130.185010-2-u.kleine-koenig@pengutronix.de'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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PicoXcell has had nothing but treewide cleanups for at least the last 8
years and no signs of activity. The most recent activity is a yocto vendor
kernel based on v3.0 in 2015.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Jamie Iles <jamie@jamieiles.com>
Cc: Russell King <linux@armlinux.org.uk>
Link: https://lore.kernel.org/r/20201210200315.2965567-3-robh@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Russell said that he is no longer using this machine, and it seems that
nobody else has in a long time, so it's time to say goodbye to it.
As this is the last platform using CONFIG_ARCH_USES_GETTIMEOFFSET,
there are some follow-up patches to remove that as well.
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Pull ARM SoC platform updates from Olof Johansson:
"SoC changes, a substantial part of this is cleanup of some of the
older platforms that used to have a bunch of board files.
In particular:
- Remove non-DT i.MX platforms that haven't seen activity in years,
it's time to remove them.
- A bunch of cleanup and removal of platform data for TI/OMAP
platforms, moving over to genpd for power/reset control (yay!)
- Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
closer to multiplatform support (not quite there yet, but getting
close).
There are a few other changes too, smaller fixlets, etc. For new
platform support, the primary ones are:
- New SoC: Hisilicon SD5203, ARM926EJ-S platform.
- Cpufreq support for i.MX7ULP"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits)
ARM: mstar: Select MStar intc
ARM: stm32: Replace HTTP links with HTTPS ones
ARM: debug: add UART early console support for SD5203
ARM: hisi: add support for SD5203 SoC
ARM: omap3: enable off mode automatically
clk: imx: imx35: Remove mx35_clocks_init()
clk: imx: imx31: Remove mx31_clocks_init()
clk: imx: imx27: Remove mx27_clocks_init()
ARM: imx: Remove unused definitions
ARM: imx35: Retrieve the IIM base address from devicetree
ARM: imx3: Retrieve the AVIC base address from devicetree
ARM: imx3: Retrieve the CCM base address from devicetree
ARM: imx31: Retrieve the IIM base address from devicetree
ARM: imx27: Retrieve the CCM base address from devicetree
ARM: imx27: Retrieve the SYSCTRL base address from devicetree
ARM: s3c64xx: bring back notes from removed debug-macro.S
ARM: s3c24xx: fix Wunused-variable warning on !MMU
ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
MAINTAINERS: mark linux-samsung-soc list non-moderated
ARM: imx: Remove remnant board file support pieces
...
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into arm/soc
Hisilicon ARM SoC updates for v5.10
- Add SD5203 SoC support which core is ARM926EJ-S
- Add Low-level debugging support for SD5203
* tag 'hisi-arm-soc-for-5.10' of git://github.com/hisilicon/linux-hisi:
ARM: debug: add UART early console support for SD5203
ARM: hisi: add support for SD5203 SoC
Link: https://lore.kernel.org/r/5F742928.2060202@hisilicon.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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Add support of early console for SD5203.
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
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Instead of a flow control selection mechanism specifically for
8250, make this available for all debug UARTs. If the debug
UART supports waiting for CTS to be asserted, then this code
can be activated for terminals that need it.
We keep the defaults for EBSA110, Footbridge, Gemini and RPC
so that this still works as expected for these older platforms:
they assume that flow control shall be enabled for debug
prints.
I switch the location of the check for
ifdef CONFIG_DEBUG_UART_FLOW_CONTROL from the actual debug
UART drivers: the code would get compiled-out for 8250 and
Tegra unless their custom config (or passing -DFLOW_CONTROL
in the Tegra case) was not set. Instead this is conditional
at the three places where we print debug messages. The idea
is that debug UARTs can be implemented without this ifdef
boilerplate so they look cleaner, alas the ifdef has to be
somewhere.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The plat-samsung directory and mach-s5pv210 can be build
completely independently, so split the two Kconfig symbols
CONFIG_PLAT_SAMSUNG and CONFIG_ARCH_S5PV210.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20200806182059.2431-18-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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Now that no code in arch/arm is shared between mach-exynos and the
others, make the split formal.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20200806182059.2431-15-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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Before we can separate plat-samsung from the individual platforms,
this one has to get moved to a place where it remains accessible.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-13-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.
This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.
There are a variety of indentation styles found.
a) 4 spaces + '---help---'
b) 7 spaces + '---help---'
c) 8 spaces + '---help---'
d) 1 space + 1 tab + '---help---'
e) 1 tab + '---help---' (correct indentation)
f) 1 tab + 1 space + '---help---'
g) 1 tab + 2 spaces + '---help---'
In order to convert all of them to 1 tab + 'help', I ran the
following commend:
$ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Enable low-level debugging support for RZ/G1H (R8A7742). RZ/G1H uses
SCIFA2 for the debug console.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1588197415-13747-5-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add support of early console for STM32MP1. Default UART instance is UART4,
but other UART instances can be configured by setting physical and virtual
base addresses in menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
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Add support of early console for STM32H7. Default UART instance is USART1,
but other UART instances can be configured by setting physical and virtual
base addresses in menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
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