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diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
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1config NIOS2
2 def_bool y
3 select ARCH_WANT_OPTIONAL_GPIOLIB
4 select CLKSRC_OF
5 select GENERIC_ATOMIC64
6 select GENERIC_CLOCKEVENTS
7 select GENERIC_CPU_DEVICES
8 select GENERIC_IRQ_PROBE
9 select GENERIC_IRQ_SHOW
10 select HAVE_ARCH_TRACEHOOK
11 select IRQ_DOMAIN
12 select MODULES_USE_ELF_RELA
13 select OF
14 select OF_EARLY_FLATTREE
15 select SOC_BUS
16 select SPARSE_IRQ
17 select USB_ARCH_HAS_HCD if USB_SUPPORT
18
19config GENERIC_CSUM
20 def_bool y
21
22config GENERIC_HWEIGHT
23 def_bool y
24
25config GENERIC_CALIBRATE_DELAY
26 def_bool y
27
28config NO_IOPORT_MAP
29 def_bool y
30
31config HAS_DMA
32 def_bool y
33
34config FPU
35 def_bool n
36
37config SWAP
38 def_bool n
39
40config RWSEM_GENERIC_SPINLOCK
41 def_bool y
42
43config TRACE_IRQFLAGS_SUPPORT
44 def_bool n
45
46source "init/Kconfig"
47
48menu "Kernel features"
49
50source "kernel/Kconfig.preempt"
51
52source "kernel/Kconfig.freezer"
53
54source "kernel/Kconfig.hz"
55
56source "mm/Kconfig"
57
58config FORCE_MAX_ZONEORDER
59 int "Maximum zone order"
60 range 9 20
61 default "11"
62 help
63 The kernel memory allocator divides physically contiguous memory
64 blocks into "zones", where each zone is a power of two number of
65 pages. This option selects the largest power of two that the kernel
66 keeps in the memory allocator. If you need to allocate very large
67 blocks of physically contiguous memory, then you may need to
68 increase this value.
69
70 This config option is actually maximum order plus one. For example,
71 a value of 11 means that the largest free memory block is 2^10 pages.
72
73endmenu
74
75source "arch/nios2/platform/Kconfig.platform"
76
77menu "Processor type and features"
78
79config MMU
80 def_bool y
81
82config NR_CPUS
83 int
84 default "1"
85
86config NIOS2_ALIGNMENT_TRAP
87 bool "Catch alignment trap"
88 default y
89 help
90 Nios II CPUs cannot fetch/store data which is not bus aligned,
91 i.e., a 2 or 4 byte fetch must start at an address divisible by
92 2 or 4. Any non-aligned load/store instructions will be trapped and
93 emulated in software if you say Y here, which has a performance
94 impact.
95
96comment "Boot options"
97
98config CMDLINE_BOOL
99 bool "Default bootloader kernel arguments"
100 default y
101
102config CMDLINE
103 string "Default kernel command string"
104 default ""
105 depends on CMDLINE_BOOL
106 help
107 On some platforms, there is currently no way for the boot loader to
108 pass arguments to the kernel. For these platforms, you can supply
109 some command-line options at build time by entering them here. In
110 other cases you can specify kernel args so that you don't have
111 to set them up in board prom initialization routines.
112
113config CMDLINE_FORCE
114 bool "Force default kernel command string"
115 depends on CMDLINE_BOOL
116 help
117 Set this to have arguments from the default kernel command string
118 override those passed by the boot loader.
119
120config NIOS2_CMDLINE_IGNORE_DTB
121 bool "Ignore kernel command string from DTB"
122 depends on CMDLINE_BOOL
123 depends on !CMDLINE_FORCE
124 default y
125 help
126 Set this to ignore the bootargs property from the devicetree's
127 chosen node and fall back to CMDLINE if nothing is passed.
128
129config NIOS2_PASS_CMDLINE
130 bool "Passed kernel command line from u-boot"
131 default n
132 help
133 Use bootargs env variable from u-boot for kernel command line.
134 will override "Default kernel command string".
135 Say N if you are unsure.
136
137endmenu
138
139menu "Advanced setup"
140
141config ADVANCED_OPTIONS
142 bool "Prompt for advanced kernel configuration options"
143 help
144
145comment "Default settings for advanced configuration options are used"
146 depends on !ADVANCED_OPTIONS
147
148config NIOS2_KERNEL_MMU_REGION_BASE_BOOL
149 bool "Set custom kernel MMU region base address"
150 depends on ADVANCED_OPTIONS
151 help
152 This option allows you to set the virtual address of the kernel MMU region.
153
154 Say N here unless you know what you are doing.
155
156config NIOS2_KERNEL_MMU_REGION_BASE
157 hex "Virtual base address of the kernel MMU region " if NIOS2_KERNEL_MMU_REGION_BASE_BOOL
158 default "0x80000000"
159 help
160 This option allows you to set the virtual base address of the kernel MMU region.
161
162config NIOS2_KERNEL_REGION_BASE_BOOL
163 bool "Set custom kernel region base address"
164 depends on ADVANCED_OPTIONS
165 help
166 This option allows you to set the virtual address of the kernel region.
167
168 Say N here unless you know what you are doing.
169
170config NIOS2_KERNEL_REGION_BASE
171 hex "Virtual base address of the kernel region " if NIOS2_KERNEL_REGION_BASE_BOOL
172 default "0xc0000000"
173
174config NIOS2_IO_REGION_BASE_BOOL
175 bool "Set custom I/O region base address"
176 depends on ADVANCED_OPTIONS
177 help
178 This option allows you to set the virtual address of the I/O region.
179
180 Say N here unless you know what you are doing.
181
182config NIOS2_IO_REGION_BASE
183 hex "Virtual base address of the I/O region" if NIOS2_IO_REGION_BASE_BOOL
184 default "0xe0000000"
185
186endmenu
187
188menu "Executable file formats"
189
190source "fs/Kconfig.binfmt"
191
192endmenu
193
194source "net/Kconfig"
195
196source "drivers/Kconfig"
197
198source "fs/Kconfig"
199
200source "arch/nios2/Kconfig.debug"
201
202source "security/Kconfig"
203
204source "crypto/Kconfig"
205
206source "lib/Kconfig"