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