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| author | Arnd Bergmann <arnd@arndb.de> | 2022-03-09 14:20:20 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2022-03-17 09:13:13 +0100 |
| commit | 2f618d5ef5dd05e2380ee627814de90d5a33c3f2 (patch) | |
| tree | 5e2b444654accf60d2a4d7e3dc1620931f2a69f4 /arch/arm/mach-ux500 | |
| parent | a483b1b232e616d0095a59b987ffc739bc1b56bc (diff) | |
| download | linux-stable-2f618d5ef5dd05e2380ee627814de90d5a33c3f2.tar.gz linux-stable-2f618d5ef5dd05e2380ee627814de90d5a33c3f2.tar.bz2 linux-stable-2f618d5ef5dd05e2380ee627814de90d5a33c3f2.zip | |
ARM: remove support for NOMMU ARMv4/v5
It is possible to build MMU-less kernels for Cortex-M base
microcrontrollers as well as a couple of older platforms that
have not been converted to CONFIG_ARCH_MULTIPLATFORM,
specifically ep93xx, footbridge, dove, sa1100 and s3c24xx.
It seems unlikely that anybody has tested those configurations
in recent years, as even building them is frequently broken.
A patch I submitted caused another build time regression
in this configuration. I sent a patch for that, but it seems
better to also remove the option entirely, leaving ARMv7-M
as the only supported Arm NOMMU target for simplicity.
A couple of platforms have dependencies on CONFIG_MMU, those
can all be removed now. Notably, mach-integrator tries to
support MMU-less CPU cores, but those have not actually been
selectable for a long time.
This addresses several build failures in randconfig builds that
have accumulated over the years.
Cc: Vladimir Murzin <vladimir.murzin@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-ux500')
| -rw-r--r-- | arch/arm/mach-ux500/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index 24ed7f4a87a4..c18def269137 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 menuconfig ARCH_U8500 bool "ST-Ericsson U8500 Series" - depends on ARCH_MULTI_V7 && MMU + depends on ARCH_MULTI_V7 select AB8500_CORE select ABX500_CORE select ARM_AMBA |