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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> |
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| .. | ||
| common.h | ||
| emev2.h | ||
| headsmp-apmu.S | ||
| headsmp-scu.S | ||
| headsmp.S | ||
| Kconfig | ||
| Makefile | ||
| platsmp-apmu.c | ||
| platsmp-scu.c | ||
| platsmp.c | ||
| pm-rcar-gen2.c | ||
| r8a7779.h | ||
| rcar-gen2.h | ||
| regulator-quirk-rcar-gen2.c | ||
| setup-emev2.c | ||
| setup-r7s9210.c | ||
| setup-r7s72100.c | ||
| setup-r8a73a4.c | ||
| setup-r8a7740.c | ||
| setup-r8a7778.c | ||
| setup-r8a7779.c | ||
| setup-rcar-gen2.c | ||
| setup-sh73a0.c | ||
| sh73a0.h | ||
| smp-emev2.c | ||
| smp-r8a7779.c | ||
| smp-sh73a0.c | ||
| suspend.c | ||
| timer.c | ||