1# SPDX-License-Identifier: GPL-2.0 2config M68K 3 bool 4 default y 5 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA 6 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA 7 select ARCH_NO_COHERENT_DMA_MMAP if !MMU 8 select HAVE_IDE 9 select HAVE_AOUT if MMU 10 select HAVE_DEBUG_BUGVERBOSE 11 select GENERIC_IRQ_SHOW 12 select GENERIC_ATOMIC64 13 select HAVE_UID16 14 select VIRT_TO_BUS 15 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS 16 select GENERIC_CPU_DEVICES 17 select GENERIC_IOMAP 18 select GENERIC_STRNCPY_FROM_USER if MMU 19 select GENERIC_STRNLEN_USER if MMU 20 select ARCH_WANT_IPC_PARSE_VERSION 21 select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE 22 select HAVE_FUTEX_CMPXCHG if MMU && FUTEX 23 select HAVE_MOD_ARCH_SPECIFIC 24 select MODULES_USE_ELF_REL 25 select MODULES_USE_ELF_RELA 26 select OLD_SIGSUSPEND3 27 select OLD_SIGACTION 28 select DMA_NONCOHERENT_OPS if HAS_DMA 29 select HAVE_MEMBLOCK 30 select ARCH_DISCARD_MEMBLOCK 31 select NO_BOOTMEM 32 33config CPU_BIG_ENDIAN 34 def_bool y 35 36config RWSEM_GENERIC_SPINLOCK 37 bool 38 default y 39 40config RWSEM_XCHGADD_ALGORITHM 41 bool 42 43config ARCH_HAS_ILOG2_U32 44 bool 45 46config ARCH_HAS_ILOG2_U64 47 bool 48 49config GENERIC_HWEIGHT 50 bool 51 default y 52 53config GENERIC_CALIBRATE_DELAY 54 bool 55 default y 56 57config GENERIC_CSUM 58 bool 59 60config TIME_LOW_RES 61 bool 62 default y 63 64config NO_IOPORT_MAP 65 def_bool y 66 67config NO_DMA 68 def_bool (MMU && SUN3) || (!MMU && !COLDFIRE) 69 70config ZONE_DMA 71 bool 72 default y 73 74config HZ 75 int 76 default 1000 if CLEOPATRA 77 default 100 78 79config PGTABLE_LEVELS 80 default 2 if SUN3 || COLDFIRE 81 default 3 82 83source "init/Kconfig" 84 85source "kernel/Kconfig.freezer" 86 87config MMU 88 bool "MMU-based Paged Memory Management Support" 89 default y 90 help 91 Select if you want MMU-based virtualised addressing space 92 support by paged memory management. If unsure, say 'Y'. 93 94config MMU_MOTOROLA 95 bool 96 97config MMU_COLDFIRE 98 bool 99 100config MMU_SUN3 101 bool 102 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE 103 104config KEXEC 105 bool "kexec system call" 106 depends on M68KCLASSIC 107 select KEXEC_CORE 108 help 109 kexec is a system call that implements the ability to shutdown your 110 current kernel, and to start another kernel. It is like a reboot 111 but it is independent of the system firmware. And like a reboot 112 you can start any kernel with it, not just Linux. 113 114 The name comes from the similarity to the exec system call. 115 116 It is an ongoing process to be certain the hardware in a machine 117 is properly shutdown, so do not be surprised if this code does not 118 initially work for you. As of this writing the exact hardware 119 interface is strongly in flux, so no good recommendation can be 120 made. 121 122config BOOTINFO_PROC 123 bool "Export bootinfo in procfs" 124 depends on KEXEC && M68KCLASSIC 125 help 126 Say Y to export the bootinfo used to boot the kernel in a 127 "bootinfo" file in procfs. This is useful with kexec. 128 129menu "Platform setup" 130 131source arch/m68k/Kconfig.cpu 132 133source arch/m68k/Kconfig.machine 134 135source arch/m68k/Kconfig.bus 136 137endmenu 138 139menu "Kernel Features" 140 141if COLDFIRE 142source "kernel/Kconfig.preempt" 143endif 144 145source "mm/Kconfig" 146 147endmenu 148 149menu "Executable file formats" 150 151source "fs/Kconfig.binfmt" 152 153endmenu 154 155if !MMU 156menu "Power management options" 157 158config PM 159 bool "Power Management support" 160 help 161 Support processor power management modes 162 163endmenu 164endif 165 166source "net/Kconfig" 167 168source "drivers/Kconfig" 169 170source "arch/m68k/Kconfig.devices" 171 172source "fs/Kconfig" 173 174source "arch/m68k/Kconfig.debug" 175 176source "security/Kconfig" 177 178source "crypto/Kconfig" 179 180source "lib/Kconfig" 181