1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 config M68K 2 config M68K
3 bool 3 bool
4 default y 4 default y
5 select ARCH_32BIT_OFF_T 5 select ARCH_32BIT_OFF_T
6 select ARCH_HAS_BINFMT_FLAT 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 7 select ARCH_HAS_CURRENT_STACK_POINTER
10 select ARCH_HAS_DMA_PREP_COHERENT if M !! 8 select ARCH_HAS_DMA_PREP_COHERENT if HAS_DMA && MMU && !COLDFIRE
11 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if !! 9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
12 select ARCH_HAVE_NMI_SAFE_CMPXCHG if R 10 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
13 select ARCH_MIGHT_HAVE_PC_PARPORT if I 11 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
14 select ARCH_NO_PREEMPT if !COLDFIRE 12 select ARCH_NO_PREEMPT if !COLDFIRE
15 select ARCH_USE_MEMTEST if MMU_MOTOROL 13 select ARCH_USE_MEMTEST if MMU_MOTOROLA
16 select ARCH_WANT_IPC_PARSE_VERSION 14 select ARCH_WANT_IPC_PARSE_VERSION
17 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK 15 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
18 select DMA_DIRECT_REMAP if M68K_NONCOH !! 16 select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE
19 select GENERIC_ATOMIC64 17 select GENERIC_ATOMIC64
20 select GENERIC_CPU_DEVICES 18 select GENERIC_CPU_DEVICES
21 select GENERIC_IOMAP if HAS_IOPORT !! 19 select GENERIC_IOMAP
22 select GENERIC_IRQ_SHOW 20 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 || ATA <<
27 select HAVE_ARCH_SECCOMP 21 select HAVE_ARCH_SECCOMP
28 select HAVE_ARCH_SECCOMP_FILTER 22 select HAVE_ARCH_SECCOMP_FILTER
29 select HAVE_ASM_MODVERSIONS 23 select HAVE_ASM_MODVERSIONS
30 select HAVE_DEBUG_BUGVERBOSE 24 select HAVE_DEBUG_BUGVERBOSE
31 select HAVE_EFFICIENT_UNALIGNED_ACCESS 25 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED
32 select HAVE_MOD_ARCH_SPECIFIC 26 select HAVE_MOD_ARCH_SPECIFIC
33 select HAVE_UID16 27 select HAVE_UID16
34 select MMU_GATHER_NO_RANGE if MMU 28 select MMU_GATHER_NO_RANGE if MMU
35 select MODULES_USE_ELF_REL 29 select MODULES_USE_ELF_REL
36 select MODULES_USE_ELF_RELA 30 select MODULES_USE_ELF_RELA
37 select NO_DMA if !MMU && !COLDFIRE 31 select NO_DMA if !MMU && !COLDFIRE
38 select OLD_SIGACTION 32 select OLD_SIGACTION
39 select OLD_SIGSUSPEND3 33 select OLD_SIGSUSPEND3
40 select UACCESS_MEMCPY if !MMU 34 select UACCESS_MEMCPY if !MMU
41 select ZONE_DMA 35 select ZONE_DMA
42 36
43 config CPU_BIG_ENDIAN 37 config CPU_BIG_ENDIAN
44 def_bool y 38 def_bool y
45 39
46 config ARCH_HAS_ILOG2_U32 40 config ARCH_HAS_ILOG2_U32
47 bool 41 bool
48 42
49 config ARCH_HAS_ILOG2_U64 43 config ARCH_HAS_ILOG2_U64
50 bool 44 bool
51 45
52 config GENERIC_HWEIGHT 46 config GENERIC_HWEIGHT
53 bool 47 bool
54 default y 48 default y
55 49
56 config GENERIC_CALIBRATE_DELAY 50 config GENERIC_CALIBRATE_DELAY
57 bool 51 bool
58 default y 52 default y
59 53
60 config GENERIC_CSUM 54 config GENERIC_CSUM
61 bool 55 bool
62 56
63 config TIME_LOW_RES 57 config TIME_LOW_RES
64 bool 58 bool
65 default y 59 default y
66 60
67 config NO_IOPORT_MAP 61 config NO_IOPORT_MAP
68 def_bool y 62 def_bool y
69 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
79 config MMU 73 config MMU
80 bool "MMU-based Paged Memory Managemen 74 bool "MMU-based Paged Memory Management Support"
81 default y 75 default y
82 help 76 help
83 Select if you want MMU-based virtual 77 Select if you want MMU-based virtualised addressing space
84 support by paged memory management. 78 support by paged memory management. If unsure, say 'Y'.
85 79
86 config MMU_MOTOROLA 80 config MMU_MOTOROLA
87 bool 81 bool
88 select HAVE_PAGE_SIZE_4KB <<
89 82
90 config MMU_COLDFIRE 83 config MMU_COLDFIRE
91 select HAVE_PAGE_SIZE_8KB <<
92 bool 84 bool
93 85
94 config MMU_SUN3 86 config MMU_SUN3
95 bool 87 bool
96 select HAVE_PAGE_SIZE_8KB <<
97 depends on MMU && !MMU_MOTOROLA && !MM 88 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
98 89
99 config ARCH_SUPPORTS_KEXEC !! 90 config KEXEC
100 def_bool M68KCLASSIC && MMU !! 91 bool "kexec system call"
>> 92 depends on M68KCLASSIC && MMU
>> 93 select KEXEC_CORE
>> 94 help
>> 95 kexec is a system call that implements the ability to shutdown your
>> 96 current kernel, and to start another kernel. It is like a reboot
>> 97 but it is independent of the system firmware. And like a reboot
>> 98 you can start any kernel with it, not just Linux.
>> 99
>> 100 The name comes from the similarity to the exec system call.
>> 101
>> 102 It is an ongoing process to be certain the hardware in a machine
>> 103 is properly shutdown, so do not be surprised if this code does not
>> 104 initially work for you. As of this writing the exact hardware
>> 105 interface is strongly in flux, so no good recommendation can be
>> 106 made.
101 107
102 config BOOTINFO_PROC 108 config BOOTINFO_PROC
103 bool "Export bootinfo in procfs" 109 bool "Export bootinfo in procfs"
104 depends on KEXEC && M68KCLASSIC 110 depends on KEXEC && M68KCLASSIC
105 help 111 help
106 Say Y to export the bootinfo used to 112 Say Y to export the bootinfo used to boot the kernel in a
107 "bootinfo" file in procfs. This is 113 "bootinfo" file in procfs. This is useful with kexec.
108 114
109 menu "Platform setup" 115 menu "Platform setup"
110 116
111 source "arch/m68k/Kconfig.cpu" 117 source "arch/m68k/Kconfig.cpu"
112 118
113 source "arch/m68k/Kconfig.machine" 119 source "arch/m68k/Kconfig.machine"
114 120
115 source "arch/m68k/Kconfig.bus" 121 source "arch/m68k/Kconfig.bus"
116 122
117 endmenu 123 endmenu
118 124
119 menu "Kernel Features" 125 menu "Kernel Features"
120 126
121 endmenu 127 endmenu
122 128
123 if !MMU 129 if !MMU
124 menu "Power management options" 130 menu "Power management options"
125 131
126 config PM 132 config PM
127 bool "Power Management support" 133 bool "Power Management support"
128 help 134 help
129 Support processor power management m 135 Support processor power management modes
130 136
131 endmenu 137 endmenu
132 endif 138 endif
133 139
134 source "arch/m68k/Kconfig.devices" 140 source "arch/m68k/Kconfig.devices"
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