[PATCH 0/5] kvx: remove architecture support

[Sascha Hauer]

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.

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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