1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 config NIOS2 !! 2 config M68K
3 def_bool y !! 3 bool
>> 4 default y
4 select ARCH_32BIT_OFF_T 5 select ARCH_32BIT_OFF_T
5 select ARCH_HAS_CPU_CACHE_ALIASING !! 6 select ARCH_HAS_BINFMT_FLAT
6 select ARCH_HAS_DMA_PREP_COHERENT !! 7 select ARCH_HAS_CPU_FINALIZE_INIT if MMU
7 select ARCH_HAS_SYNC_DMA_FOR_CPU !! 8 select ARCH_HAS_CURRENT_STACK_POINTER
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 9 select ARCH_HAS_DMA_PREP_COHERENT if M68K_NONCOHERENT_DMA && !COLDFIRE
9 select ARCH_HAS_DMA_SET_UNCACHED !! 10 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if M68K_NONCOHERENT_DMA
10 select ARCH_NO_SWAP !! 11 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
11 select COMMON_CLK !! 12 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
12 select TIMER_OF !! 13 select ARCH_NO_PREEMPT if !COLDFIRE
>> 14 select ARCH_USE_MEMTEST if MMU_MOTOROLA
>> 15 select ARCH_WANT_IPC_PARSE_VERSION
>> 16 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
>> 17 select DMA_DIRECT_REMAP if M68K_NONCOHERENT_DMA && !COLDFIRE
13 select GENERIC_ATOMIC64 18 select GENERIC_ATOMIC64
14 select GENERIC_CPU_DEVICES 19 select GENERIC_CPU_DEVICES
15 select GENERIC_IRQ_PROBE !! 20 select GENERIC_IOMAP
16 select GENERIC_IRQ_SHOW 21 select GENERIC_IRQ_SHOW
17 select HAVE_ARCH_TRACEHOOK !! 22 select GENERIC_LIB_ASHLDI3
18 select HAVE_ARCH_KGDB !! 23 select GENERIC_LIB_ASHRDI3
19 select HAVE_PAGE_SIZE_4KB !! 24 select GENERIC_LIB_LSHRDI3
20 select IRQ_DOMAIN !! 25 select HAS_IOPORT if PCI || ISA || ATARI_ROM_ISA
21 select LOCK_MM_AND_FIND_VMA !! 26 select HAVE_ARCH_SECCOMP
22 select MODULES_USE_ELF_RELA !! 27 select HAVE_ARCH_SECCOMP_FILTER
23 select OF !! 28 select HAVE_ASM_MODVERSIONS
24 select OF_EARLY_FLATTREE !! 29 select HAVE_DEBUG_BUGVERBOSE
25 select SOC_BUS !! 30 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED
26 select SPARSE_IRQ !! 31 select HAVE_MOD_ARCH_SPECIFIC
27 select USB_ARCH_HAS_HCD if USB_SUPPORT !! 32 select HAVE_UID16
28 select CPU_NO_EFFICIENT_FFS <<
29 select MMU_GATHER_NO_RANGE if MMU 33 select MMU_GATHER_NO_RANGE if MMU
>> 34 select MODULES_USE_ELF_REL
>> 35 select MODULES_USE_ELF_RELA
>> 36 select NO_DMA if !MMU && !COLDFIRE
>> 37 select OLD_SIGACTION
>> 38 select OLD_SIGSUSPEND3
>> 39 select UACCESS_MEMCPY if !MMU
>> 40 select ZONE_DMA
30 41
31 config GENERIC_CSUM !! 42 config CPU_BIG_ENDIAN
32 def_bool y <<
33 <<
34 config GENERIC_HWEIGHT <<
35 def_bool y <<
36 <<
37 config GENERIC_CALIBRATE_DELAY <<
38 def_bool y <<
39 <<
40 config NO_IOPORT_MAP <<
41 def_bool y 43 def_bool y
42 44
43 config FPU !! 45 config ARCH_HAS_ILOG2_U32
44 def_bool n !! 46 bool
45 <<
46 menu "Kernel features" <<
47 47
48 source "kernel/Kconfig.hz" !! 48 config ARCH_HAS_ILOG2_U64
>> 49 bool
49 50
50 config ARCH_FORCE_MAX_ORDER !! 51 config GENERIC_HWEIGHT
51 int "Order of maximal physically conti !! 52 bool
52 default "10" !! 53 default y
53 help <<
54 The kernel page allocator limits the <<
55 contiguous allocations. The limit is <<
56 defines the maximal power of two of <<
57 allocated as a single contiguous blo <<
58 overriding the default setting when <<
59 large blocks of physically contiguou <<
60 <<
61 Don't change if unsure. <<
62 54
63 endmenu !! 55 config GENERIC_CALIBRATE_DELAY
>> 56 bool
>> 57 default y
64 58
65 source "arch/nios2/platform/Kconfig.platform" !! 59 config GENERIC_CSUM
>> 60 bool
66 61
67 menu "Processor type and features" !! 62 config TIME_LOW_RES
>> 63 bool
>> 64 default y
68 65
69 config MMU !! 66 config NO_IOPORT_MAP
70 def_bool y 67 def_bool y
71 68
72 config NR_CPUS !! 69 config HZ
73 int 70 int
74 default "1" !! 71 default 1000 if CLEOPATRA
>> 72 default 100
75 73
76 config NIOS2_ALIGNMENT_TRAP !! 74 config PGTABLE_LEVELS
77 bool "Catch alignment trap" !! 75 default 2 if SUN3 || COLDFIRE
>> 76 default 3
>> 77
>> 78 config MMU
>> 79 bool "MMU-based Paged Memory Management Support"
78 default y 80 default y
79 help 81 help
80 Nios II CPUs cannot fetch/store data !! 82 Select if you want MMU-based virtualised addressing space
81 i.e., a 2 or 4 byte fetch must start !! 83 support by paged memory management. If unsure, say 'Y'.
82 2 or 4. Any non-aligned load/store i <<
83 emulated in software if you say Y he <<
84 impact. <<
85 84
86 comment "Boot options" !! 85 config MMU_MOTOROLA
>> 86 bool
87 87
88 config CMDLINE_BOOL !! 88 config MMU_COLDFIRE
89 bool "Default bootloader kernel argume !! 89 bool
90 default y <<
91 90
92 config CMDLINE !! 91 config MMU_SUN3
93 string "Default kernel command string" !! 92 bool
94 default "" !! 93 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
95 depends on CMDLINE_BOOL <<
96 help <<
97 On some platforms, there is currentl <<
98 pass arguments to the kernel. For th <<
99 some command-line options at build t <<
100 other cases you can specify kernel a <<
101 to set them up in board prom initial <<
102 <<
103 config CMDLINE_FORCE <<
104 bool "Force default kernel command str <<
105 depends on CMDLINE_BOOL <<
106 help <<
107 Set this to have arguments from the <<
108 override those passed by the boot lo <<
109 94
110 config NIOS2_CMDLINE_IGNORE_DTB !! 95 config ARCH_SUPPORTS_KEXEC
111 bool "Ignore kernel command string fro !! 96 def_bool M68KCLASSIC && MMU
112 depends on CMDLINE_BOOL <<
113 depends on !CMDLINE_FORCE <<
114 default y <<
115 help <<
116 Set this to ignore the bootargs prop <<
117 chosen node and fall back to CMDLINE <<
118 97
119 config NIOS2_PASS_CMDLINE !! 98 config BOOTINFO_PROC
120 bool "Passed kernel command line from !! 99 bool "Export bootinfo in procfs"
121 help !! 100 depends on KEXEC && M68KCLASSIC
122 Use bootargs env variable from u-boo <<
123 will override "Default kernel comman <<
124 Say N if you are unsure. <<
125 <<
126 config NIOS2_BOOT_LINK_OFFSET <<
127 hex "Link address offset for booting" <<
128 default "0x00500000" <<
129 help 101 help
130 This option allows you to set the li !! 102 Say Y to export the bootinfo used to boot the kernel in a
131 This can be useful if you are on a b !! 103 "bootinfo" file in procfs. This is useful with kexec.
132 memory. <<
133 104
134 endmenu !! 105 menu "Platform setup"
135 <<
136 menu "Advanced setup" <<
137 106
138 config ADVANCED_OPTIONS !! 107 source "arch/m68k/Kconfig.cpu"
139 bool "Prompt for advanced kernel confi <<
140 108
141 comment "Default settings for advanced configu !! 109 source "arch/m68k/Kconfig.machine"
142 depends on !ADVANCED_OPTIONS <<
143 110
144 config NIOS2_KERNEL_MMU_REGION_BASE_BOOL !! 111 source "arch/m68k/Kconfig.bus"
145 bool "Set custom kernel MMU region bas <<
146 depends on ADVANCED_OPTIONS <<
147 help <<
148 This option allows you to set the vi <<
149 112
150 Say N here unless you know what you !! 113 endmenu
151 114
152 config NIOS2_KERNEL_MMU_REGION_BASE !! 115 menu "Kernel Features"
153 hex "Virtual base address of the kerne <<
154 default "0x80000000" <<
155 help <<
156 This option allows you to set the vi <<
157 116
158 config NIOS2_KERNEL_REGION_BASE_BOOL !! 117 endmenu
159 bool "Set custom kernel region base ad <<
160 depends on ADVANCED_OPTIONS <<
161 help <<
162 This option allows you to set the vi <<
163 <<
164 Say N here unless you know what you <<
165 118
166 config NIOS2_KERNEL_REGION_BASE !! 119 if !MMU
167 hex "Virtual base address of the kerne !! 120 menu "Power management options"
168 default "0xc0000000" <<
169 121
170 config NIOS2_IO_REGION_BASE_BOOL !! 122 config PM
171 bool "Set custom I/O region base addre !! 123 bool "Power Management support"
172 depends on ADVANCED_OPTIONS <<
173 help 124 help
174 This option allows you to set the vi !! 125 Support processor power management modes
175 <<
176 Say N here unless you know what you <<
177 <<
178 config NIOS2_IO_REGION_BASE <<
179 hex "Virtual base address of the I/O r <<
180 default "0xe0000000" <<
181 126
182 endmenu 127 endmenu
>> 128 endif
>> 129
>> 130 source "arch/m68k/Kconfig.devices"
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