[PATCH 0/5] kvx: remove architecture support
Clement Leger
clement.leger at linux.dev
Mon Oct 26 08:28:26 PDT 2026
On 10/26/26 11:01, Sascha Hauer wrote:
> Hi Clement,
>
> On 2026-10-23 22:05, clement.leger wrote:
>> From: Clément Léger <clement.leger at linux.dev>
>>
>> The barebox kvx port was upstreamed in the hope it was the first one
>> of a long series of other contributions (GCC, Linux, etc).
>> Unfortunately, the kvx architecture remained closed and there was no
>> public specification nor upstreamed compiler. Additionally, there are
>> no users outside of the company itself and there is not possible to
>> obtain a board with such SoC. Latest modifications of the architecture
>> also made it non compatible with this architecture.
>>
>> As discussed during LPC, there is no point in keeping this
>> architecture since it is unmaintained and slows down the effort to get
>> Rust support on barebox. Remove the whole architecture support and
>> drivers as well.
>
> That's really a pity. I was quite happy to have such an early barebox
> support for a new architecture. Given what you say here it makes sense
> to drop that support, so I'll apply this being sad about it.
Hi Sascha,
Indeed, that's a pity. I guess the developer will to upstream an entire
architecture support is not sufficient to make it a reality.
Clément
>
> Anyway, thanks for your contributions so far.
>
> Sascha
>
>>
>> Clément Léger (5):
>> drivers: soc: remove KVX support
>> drivers: clocksource: remove KVX timer
>> drivers: nvmem: remove KVX OTP support
>> drivers: watchdog: remove KVX watchdog
>> arch: kvx: remove support
>>
>> .github/workflows/build-defconfigs.yml | 2 +-
>> Documentation/boards/kvx.rst | 98 -
>> Documentation/gen_magicvars.py | 19 -
>> Documentation/user/barebox.rst | 1 -
>> arch/kvx/Kbuild | 5 -
>> arch/kvx/Kconfig | 67 -
>> arch/kvx/Kconfig.debug | 2 -
>> arch/kvx/Makefile | 36 -
>> arch/kvx/configs/generic_defconfig | 14 -
>> arch/kvx/cpu/Makefile | 7 -
>> arch/kvx/cpu/barebox.lds.S | 88 -
>> arch/kvx/cpu/cpu.c | 32 -
>> arch/kvx/cpu/exception.S | 35 -
>> arch/kvx/cpu/reset.c | 68 -
>> arch/kvx/cpu/start.S | 198 -
>> arch/kvx/dts/Makefile | 7 -
>> arch/kvx/dts/k200.dts | 111 -
>> arch/kvx/include/asm/barebox.lds.h | 6 -
>> arch/kvx/include/asm/barrier.h | 20 -
>> arch/kvx/include/asm/bitops.h | 27 -
>> arch/kvx/include/asm/bitsperlong.h | 12 -
>> arch/kvx/include/asm/byteorder.h | 12 -
>> arch/kvx/include/asm/cache.h | 34 -
>> arch/kvx/include/asm/common.h | 28 -
>> arch/kvx/include/asm/dma.h | 30 -
>> arch/kvx/include/asm/elf.h | 21 -
>> arch/kvx/include/asm/ftu.h | 24 -
>> arch/kvx/include/asm/io.h | 14 -
>> arch/kvx/include/asm/linkage.h | 10 -
>> arch/kvx/include/asm/mmu.h | 8 -
>> arch/kvx/include/asm/posix_types.h | 12 -
>> arch/kvx/include/asm/privilege.h | 244 --
>> arch/kvx/include/asm/sections.h | 12 -
>> arch/kvx/include/asm/setjmp.h | 17 -
>> arch/kvx/include/asm/sfr.h | 51 -
>> arch/kvx/include/asm/sfr_defs.h | 17 -
>> arch/kvx/include/asm/string.h | 14 -
>> arch/kvx/include/asm/swab.h | 14 -
>> arch/kvx/include/asm/sys_arch.h | 49 -
>> arch/kvx/include/asm/types.h | 14 -
>> arch/kvx/include/asm/unaligned.h | 17 -
>> arch/kvx/include/asm/v1/sfr_defs.h | 5027 ----------------------
>> arch/kvx/include/asm/v2/sfr_defs.h | 5389 ------------------------
>> arch/kvx/include/asm/word-at-a-time.h | 2 -
>> arch/kvx/lib/Makefile | 6 -
>> arch/kvx/lib/asm-offsets.c | 11 -
>> arch/kvx/lib/board.c | 159 -
>> arch/kvx/lib/bootm.c | 172 -
>> arch/kvx/lib/cache.c | 25 -
>> arch/kvx/lib/cpuinfo.c | 20 -
>> arch/kvx/lib/dma-default.c | 61 -
>> arch/kvx/lib/dtb.c | 14 -
>> arch/kvx/lib/poweroff.c | 56 -
>> arch/kvx/lib/setjmp.S | 85 -
>> arch/kvx/um/Makefile | 4 -
>> drivers/clocksource/Kconfig | 4 -
>> drivers/clocksource/Makefile | 1 -
>> drivers/clocksource/kvx_timer.c | 60 -
>> drivers/nvmem/Kconfig | 7 -
>> drivers/nvmem/Makefile | 3 -
>> drivers/nvmem/kvx-otp-nv.c | 95 -
>> drivers/of/Kconfig | 2 +-
>> drivers/soc/Kconfig | 1 -
>> drivers/soc/Makefile | 1 -
>> drivers/soc/kvx/Kconfig | 10 -
>> drivers/soc/kvx/Makefile | 1 -
>> drivers/soc/kvx/kvx_socinfo.c | 178 -
>> drivers/watchdog/Kconfig | 17 -
>> drivers/watchdog/Makefile | 1 -
>> drivers/watchdog/kvx_wdt.c | 109 -
>> test/Containerfile | 7 -
>> test/kvx/generic_defconfig.yaml | 17 -
>> 72 files changed, 2 insertions(+), 13040 deletions(-)
>> delete mode 100644 Documentation/boards/kvx.rst
>> delete mode 100644 arch/kvx/Kbuild
>> delete mode 100644 arch/kvx/Kconfig
>> delete mode 100644 arch/kvx/Kconfig.debug
>> delete mode 100644 arch/kvx/Makefile
>> delete mode 100644 arch/kvx/configs/generic_defconfig
>> delete mode 100644 arch/kvx/cpu/Makefile
>> delete mode 100644 arch/kvx/cpu/barebox.lds.S
>> delete mode 100644 arch/kvx/cpu/cpu.c
>> delete mode 100644 arch/kvx/cpu/exception.S
>> delete mode 100644 arch/kvx/cpu/reset.c
>> delete mode 100644 arch/kvx/cpu/start.S
>> delete mode 100644 arch/kvx/dts/Makefile
>> delete mode 100644 arch/kvx/dts/k200.dts
>> delete mode 100644 arch/kvx/include/asm/barebox.lds.h
>> delete mode 100644 arch/kvx/include/asm/barrier.h
>> delete mode 100644 arch/kvx/include/asm/bitops.h
>> delete mode 100644 arch/kvx/include/asm/bitsperlong.h
>> delete mode 100644 arch/kvx/include/asm/byteorder.h
>> delete mode 100644 arch/kvx/include/asm/cache.h
>> delete mode 100644 arch/kvx/include/asm/common.h
>> delete mode 100644 arch/kvx/include/asm/dma.h
>> delete mode 100644 arch/kvx/include/asm/elf.h
>> delete mode 100644 arch/kvx/include/asm/ftu.h
>> delete mode 100644 arch/kvx/include/asm/io.h
>> delete mode 100644 arch/kvx/include/asm/linkage.h
>> delete mode 100644 arch/kvx/include/asm/mmu.h
>> delete mode 100644 arch/kvx/include/asm/posix_types.h
>> delete mode 100644 arch/kvx/include/asm/privilege.h
>> delete mode 100644 arch/kvx/include/asm/sections.h
>> delete mode 100644 arch/kvx/include/asm/setjmp.h
>> delete mode 100644 arch/kvx/include/asm/sfr.h
>> delete mode 100644 arch/kvx/include/asm/sfr_defs.h
>> delete mode 100644 arch/kvx/include/asm/string.h
>> delete mode 100644 arch/kvx/include/asm/swab.h
>> delete mode 100644 arch/kvx/include/asm/sys_arch.h
>> delete mode 100644 arch/kvx/include/asm/types.h
>> delete mode 100644 arch/kvx/include/asm/unaligned.h
>> delete mode 100644 arch/kvx/include/asm/v1/sfr_defs.h
>> delete mode 100644 arch/kvx/include/asm/v2/sfr_defs.h
>> delete mode 100644 arch/kvx/include/asm/word-at-a-time.h
>> delete mode 100644 arch/kvx/lib/Makefile
>> delete mode 100644 arch/kvx/lib/asm-offsets.c
>> delete mode 100644 arch/kvx/lib/board.c
>> delete mode 100644 arch/kvx/lib/bootm.c
>> delete mode 100644 arch/kvx/lib/cache.c
>> delete mode 100644 arch/kvx/lib/cpuinfo.c
>> delete mode 100644 arch/kvx/lib/dma-default.c
>> delete mode 100644 arch/kvx/lib/dtb.c
>> delete mode 100644 arch/kvx/lib/poweroff.c
>> delete mode 100644 arch/kvx/lib/setjmp.S
>> delete mode 100644 arch/kvx/um/Makefile
>> delete mode 100644 drivers/clocksource/kvx_timer.c
>> delete mode 100644 drivers/nvmem/kvx-otp-nv.c
>> delete mode 100644 drivers/soc/kvx/Kconfig
>> delete mode 100644 drivers/soc/kvx/Makefile
>> delete mode 100644 drivers/soc/kvx/kvx_socinfo.c
>> delete mode 100644 drivers/watchdog/kvx_wdt.c
>> delete mode 100644 test/kvx/generic_defconfig.yaml
>>
>> --
>> 2.55.0
>>
>
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