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authorArnd Bergmann <arnd@arndb.de>2022-03-09 16:20:20 +0300
committerArnd Bergmann <arnd@arndb.de>2022-03-17 11:13:13 +0300
commit2f618d5ef5dd05e2380ee627814de90d5a33c3f2 (patch)
tree5e2b444654accf60d2a4d7e3dc1620931f2a69f4 /drivers/spi/spidev.c
parenta483b1b232e616d0095a59b987ffc739bc1b56bc (diff)
downloadlinux-2f618d5ef5dd05e2380ee627814de90d5a33c3f2.tar.xz
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 'drivers/spi/spidev.c')
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