1# SPDX-License-Identifier: GPL-2.0 2config M68K 3 bool 4 default y 5 select ARCH_32BIT_OFF_T 6 select ARCH_HAS_BINFMT_FLAT 7 select ARCH_HAS_CPU_CACHE_ALIASING 8 select ARCH_HAS_CPU_FINALIZE_INIT if MMU 9 select ARCH_HAS_CURRENT_STACK_POINTER 10 select ARCH_HAS_DMA_PREP_COHERENT if M68K_NONCOHERENT_DMA && !COLDFIRE 11 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if M68K_NONCOHERENT_DMA 12 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS 13 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA 14 select ARCH_NO_PREEMPT if !COLDFIRE 15 select ARCH_USE_MEMTEST if MMU_MOTOROLA 16 select ARCH_WANT_IPC_PARSE_VERSION 17 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK 18 select DMA_DIRECT_REMAP if M68K_NONCOHERENT_DMA && !COLDFIRE 19 select GENERIC_ATOMIC64 20 select GENERIC_CPU_DEVICES 21 select GENERIC_IOMAP if HAS_IOPORT 22 select GENERIC_IRQ_SHOW 23 select GENERIC_LIB_ASHLDI3 24 select GENERIC_LIB_ASHRDI3 25 select GENERIC_LIB_LSHRDI3 26 select HAS_IOPORT if PCI || ISA || ATARI_ROM_ISA 27 select HAVE_ARCH_SECCOMP 28 select HAVE_ARCH_SECCOMP_FILTER 29 select HAVE_ASM_MODVERSIONS 30 select HAVE_DEBUG_BUGVERBOSE 31 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED 32 select HAVE_MOD_ARCH_SPECIFIC 33 select HAVE_UID16 34 select MMU_GATHER_NO_RANGE if MMU 35 select MODULES_USE_ELF_REL 36 select MODULES_USE_ELF_RELA 37 select NO_DMA if !MMU && !COLDFIRE 38 select OLD_SIGACTION 39 select OLD_SIGSUSPEND3 40 select UACCESS_MEMCPY if !MMU 41 select ZONE_DMA 42 43config CPU_BIG_ENDIAN 44 def_bool y 45 46config ARCH_HAS_ILOG2_U32 47 bool 48 49config ARCH_HAS_ILOG2_U64 50 bool 51 52config GENERIC_HWEIGHT 53 bool 54 default y 55 56config GENERIC_CALIBRATE_DELAY 57 bool 58 default y 59 60config GENERIC_CSUM 61 bool 62 63config TIME_LOW_RES 64 bool 65 default y 66 67config NO_IOPORT_MAP 68 def_bool y 69 70config HZ 71 int 72 default 1000 if CLEOPATRA 73 default 100 74 75config PGTABLE_LEVELS 76 default 2 if SUN3 || COLDFIRE 77 default 3 78 79config MMU 80 bool "MMU-based Paged Memory Management Support" 81 default y 82 help 83 Select if you want MMU-based virtualised addressing space 84 support by paged memory management. If unsure, say 'Y'. 85 86config MMU_MOTOROLA 87 bool 88 select HAVE_PAGE_SIZE_4KB 89 90config MMU_COLDFIRE 91 select HAVE_PAGE_SIZE_8KB 92 bool 93 94config MMU_SUN3 95 bool 96 select HAVE_PAGE_SIZE_8KB 97 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE 98 99config ARCH_SUPPORTS_KEXEC 100 def_bool M68KCLASSIC && MMU 101 102config BOOTINFO_PROC 103 bool "Export bootinfo in procfs" 104 depends on KEXEC && M68KCLASSIC 105 help 106 Say Y to export the bootinfo used to boot the kernel in a 107 "bootinfo" file in procfs. This is useful with kexec. 108 109menu "Platform setup" 110 111source "arch/m68k/Kconfig.cpu" 112 113source "arch/m68k/Kconfig.machine" 114 115source "arch/m68k/Kconfig.bus" 116 117endmenu 118 119menu "Kernel Features" 120 121endmenu 122 123if !MMU 124menu "Power management options" 125 126config PM 127 bool "Power Management support" 128 help 129 Support processor power management modes 130 131endmenu 132endif 133 134source "arch/m68k/Kconfig.devices" 135