1 # SPDX-License-Identifier: GPL-2.0 <<
2 config M68K 1 config M68K
3 bool 2 bool
4 default y 3 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 M <<
9 select ARCH_HAS_CURRENT_STACK_POINTER <<
10 select ARCH_HAS_DMA_PREP_COHERENT if M <<
11 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if <<
12 select ARCH_HAVE_NMI_SAFE_CMPXCHG if R <<
13 select ARCH_MIGHT_HAVE_PC_PARPORT if I 4 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
14 select ARCH_NO_PREEMPT if !COLDFIRE !! 5 select HAVE_IDE
15 select ARCH_USE_MEMTEST if MMU_MOTOROL !! 6 select HAVE_AOUT if MMU
16 select ARCH_WANT_IPC_PARSE_VERSION !! 7 select HAVE_DEBUG_BUGVERBOSE
17 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK !! 8 select GENERIC_IRQ_SHOW
18 select DMA_DIRECT_REMAP if M68K_NONCOH <<
19 select GENERIC_ATOMIC64 9 select GENERIC_ATOMIC64
>> 10 select HAVE_UID16
>> 11 select VIRT_TO_BUS
>> 12 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
20 select GENERIC_CPU_DEVICES 13 select GENERIC_CPU_DEVICES
21 select GENERIC_IOMAP if HAS_IOPORT !! 14 select GENERIC_IOMAP
22 select GENERIC_IRQ_SHOW !! 15 select GENERIC_STRNCPY_FROM_USER if MMU
23 select GENERIC_LIB_ASHLDI3 !! 16 select GENERIC_STRNLEN_USER if MMU
24 select GENERIC_LIB_ASHRDI3 !! 17 select ARCH_WANT_IPC_PARSE_VERSION
25 select GENERIC_LIB_LSHRDI3 !! 18 select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
26 select HAS_IOPORT if PCI || ISA || ATA !! 19 select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
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 <<
32 select HAVE_MOD_ARCH_SPECIFIC 20 select HAVE_MOD_ARCH_SPECIFIC
33 select HAVE_UID16 <<
34 select MMU_GATHER_NO_RANGE if MMU <<
35 select MODULES_USE_ELF_REL 21 select MODULES_USE_ELF_REL
36 select MODULES_USE_ELF_RELA 22 select MODULES_USE_ELF_RELA
37 select NO_DMA if !MMU && !COLDFIRE <<
38 select OLD_SIGACTION <<
39 select OLD_SIGSUSPEND3 23 select OLD_SIGSUSPEND3
40 select UACCESS_MEMCPY if !MMU !! 24 select OLD_SIGACTION
41 select ZONE_DMA <<
42 25
43 config CPU_BIG_ENDIAN !! 26 config RWSEM_GENERIC_SPINLOCK
44 def_bool y !! 27 bool
>> 28 default y
>> 29
>> 30 config RWSEM_XCHGADD_ALGORITHM
>> 31 bool
45 32
46 config ARCH_HAS_ILOG2_U32 33 config ARCH_HAS_ILOG2_U32
47 bool 34 bool
48 35
49 config ARCH_HAS_ILOG2_U64 36 config ARCH_HAS_ILOG2_U64
50 bool 37 bool
51 38
52 config GENERIC_HWEIGHT 39 config GENERIC_HWEIGHT
53 bool 40 bool
54 default y 41 default y
55 42
56 config GENERIC_CALIBRATE_DELAY 43 config GENERIC_CALIBRATE_DELAY
57 bool 44 bool
58 default y 45 default y
59 46
60 config GENERIC_CSUM 47 config GENERIC_CSUM
61 bool 48 bool
62 49
63 config TIME_LOW_RES 50 config TIME_LOW_RES
64 bool 51 bool
65 default y 52 default y
66 53
67 config NO_IOPORT_MAP 54 config NO_IOPORT_MAP
68 def_bool y 55 def_bool y
69 56
>> 57 config NO_DMA
>> 58 def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)
>> 59
>> 60 config ZONE_DMA
>> 61 bool
>> 62 default y
>> 63
70 config HZ 64 config HZ
71 int 65 int
72 default 1000 if CLEOPATRA 66 default 1000 if CLEOPATRA
73 default 100 67 default 100
74 68
75 config PGTABLE_LEVELS 69 config PGTABLE_LEVELS
76 default 2 if SUN3 || COLDFIRE 70 default 2 if SUN3 || COLDFIRE
77 default 3 71 default 3
78 72
>> 73 source "init/Kconfig"
>> 74
>> 75 source "kernel/Kconfig.freezer"
>> 76
79 config MMU 77 config MMU
80 bool "MMU-based Paged Memory Managemen 78 bool "MMU-based Paged Memory Management Support"
81 default y 79 default y
82 help 80 help
83 Select if you want MMU-based virtual 81 Select if you want MMU-based virtualised addressing space
84 support by paged memory management. 82 support by paged memory management. If unsure, say 'Y'.
85 83
86 config MMU_MOTOROLA 84 config MMU_MOTOROLA
87 bool 85 bool
88 select HAVE_PAGE_SIZE_4KB <<
89 86
90 config MMU_COLDFIRE 87 config MMU_COLDFIRE
91 select HAVE_PAGE_SIZE_8KB <<
92 bool 88 bool
93 89
94 config MMU_SUN3 90 config MMU_SUN3
95 bool 91 bool
96 select HAVE_PAGE_SIZE_8KB <<
97 depends on MMU && !MMU_MOTOROLA && !MM 92 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
98 93
99 config ARCH_SUPPORTS_KEXEC !! 94 config KEXEC
100 def_bool M68KCLASSIC && MMU !! 95 bool "kexec system call"
>> 96 depends on M68KCLASSIC
>> 97 select KEXEC_CORE
>> 98 help
>> 99 kexec is a system call that implements the ability to shutdown your
>> 100 current kernel, and to start another kernel. It is like a reboot
>> 101 but it is independent of the system firmware. And like a reboot
>> 102 you can start any kernel with it, not just Linux.
>> 103
>> 104 The name comes from the similarity to the exec system call.
>> 105
>> 106 It is an ongoing process to be certain the hardware in a machine
>> 107 is properly shutdown, so do not be surprised if this code does not
>> 108 initially work for you. As of this writing the exact hardware
>> 109 interface is strongly in flux, so no good recommendation can be
>> 110 made.
101 111
102 config BOOTINFO_PROC 112 config BOOTINFO_PROC
103 bool "Export bootinfo in procfs" 113 bool "Export bootinfo in procfs"
104 depends on KEXEC && M68KCLASSIC 114 depends on KEXEC && M68KCLASSIC
105 help 115 help
106 Say Y to export the bootinfo used to 116 Say Y to export the bootinfo used to boot the kernel in a
107 "bootinfo" file in procfs. This is 117 "bootinfo" file in procfs. This is useful with kexec.
108 118
109 menu "Platform setup" 119 menu "Platform setup"
110 120
111 source "arch/m68k/Kconfig.cpu" !! 121 source arch/m68k/Kconfig.cpu
112 122
113 source "arch/m68k/Kconfig.machine" !! 123 source arch/m68k/Kconfig.machine
114 124
115 source "arch/m68k/Kconfig.bus" !! 125 source arch/m68k/Kconfig.bus
116 126
117 endmenu 127 endmenu
118 128
119 menu "Kernel Features" 129 menu "Kernel Features"
120 130
>> 131 if COLDFIRE
>> 132 source "kernel/Kconfig.preempt"
>> 133 endif
>> 134
>> 135 source "mm/Kconfig"
>> 136
>> 137 endmenu
>> 138
>> 139 menu "Executable file formats"
>> 140
>> 141 source "fs/Kconfig.binfmt"
>> 142
121 endmenu 143 endmenu
122 144
123 if !MMU 145 if !MMU
124 menu "Power management options" 146 menu "Power management options"
125 147
126 config PM 148 config PM
127 bool "Power Management support" 149 bool "Power Management support"
128 help 150 help
129 Support processor power management m 151 Support processor power management modes
130 152
131 endmenu 153 endmenu
132 endif 154 endif
133 155
>> 156 source "net/Kconfig"
>> 157
>> 158 source "drivers/Kconfig"
>> 159
134 source "arch/m68k/Kconfig.devices" 160 source "arch/m68k/Kconfig.devices"
>> 161
>> 162 source "fs/Kconfig"
>> 163
>> 164 source "arch/m68k/Kconfig.debug"
>> 165
>> 166 source "security/Kconfig"
>> 167
>> 168 source "crypto/Kconfig"
>> 169
>> 170 source "lib/Kconfig"
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