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1 | config NIOS2 |
2 | def_bool y | |
2fc8483f LFT |
3 | select CLKSRC_OF |
4 | select GENERIC_ATOMIC64 | |
5 | select GENERIC_CLOCKEVENTS | |
6 | select GENERIC_CPU_DEVICES | |
7 | select GENERIC_IRQ_PROBE | |
8 | select GENERIC_IRQ_SHOW | |
9 | select HAVE_ARCH_TRACEHOOK | |
d16d2be1 | 10 | select HAVE_ARCH_KGDB |
2fc8483f LFT |
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 | ||
19 | config GENERIC_CSUM | |
20 | def_bool y | |
21 | ||
22 | config GENERIC_HWEIGHT | |
23 | def_bool y | |
24 | ||
25 | config GENERIC_CALIBRATE_DELAY | |
26 | def_bool y | |
27 | ||
28 | config NO_IOPORT_MAP | |
29 | def_bool y | |
30 | ||
31 | config HAS_DMA | |
32 | def_bool y | |
33 | ||
34 | config FPU | |
35 | def_bool n | |
36 | ||
37 | config SWAP | |
38 | def_bool n | |
39 | ||
40 | config RWSEM_GENERIC_SPINLOCK | |
41 | def_bool y | |
42 | ||
43 | config TRACE_IRQFLAGS_SUPPORT | |
44 | def_bool n | |
45 | ||
46 | source "init/Kconfig" | |
47 | ||
48 | menu "Kernel features" | |
49 | ||
50 | source "kernel/Kconfig.preempt" | |
51 | ||
52 | source "kernel/Kconfig.freezer" | |
53 | ||
54 | source "kernel/Kconfig.hz" | |
55 | ||
56 | source "mm/Kconfig" | |
57 | ||
58 | config 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 | ||
73 | endmenu | |
74 | ||
75 | source "arch/nios2/platform/Kconfig.platform" | |
76 | ||
77 | menu "Processor type and features" | |
78 | ||
79 | config MMU | |
80 | def_bool y | |
81 | ||
6e5c8f5f TK |
82 | config NR_CPUS |
83 | int | |
84 | default "1" | |
85 | ||
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86 | config 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 | ||
96 | comment "Boot options" | |
97 | ||
98 | config CMDLINE_BOOL | |
99 | bool "Default bootloader kernel arguments" | |
100 | default y | |
101 | ||
102 | config 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 | ||
113 | config 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 | ||
120 | config NIOS2_CMDLINE_IGNORE_DTB | |
121 | bool "Ignore kernel command string from DTB" | |
2b2b4074 | 122 | depends on CMDLINE_BOOL |
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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 | ||
129 | config 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 | ||
01623627 LFT |
137 | config NIOS2_BOOT_LINK_OFFSET |
138 | hex "Link address offset for booting" | |
139 | default "0x00500000" | |
140 | help | |
141 | This option allows you to set the link address offset of the zImage. | |
142 | This can be useful if you are on a board which has a small amount of | |
143 | memory. | |
144 | ||
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145 | endmenu |
146 | ||
147 | menu "Advanced setup" | |
148 | ||
149 | config ADVANCED_OPTIONS | |
150 | bool "Prompt for advanced kernel configuration options" | |
151 | help | |
152 | ||
153 | comment "Default settings for advanced configuration options are used" | |
154 | depends on !ADVANCED_OPTIONS | |
155 | ||
156 | config NIOS2_KERNEL_MMU_REGION_BASE_BOOL | |
157 | bool "Set custom kernel MMU region base address" | |
158 | depends on ADVANCED_OPTIONS | |
159 | help | |
160 | This option allows you to set the virtual address of the kernel MMU region. | |
161 | ||
162 | Say N here unless you know what you are doing. | |
163 | ||
164 | config NIOS2_KERNEL_MMU_REGION_BASE | |
165 | hex "Virtual base address of the kernel MMU region " if NIOS2_KERNEL_MMU_REGION_BASE_BOOL | |
166 | default "0x80000000" | |
167 | help | |
168 | This option allows you to set the virtual base address of the kernel MMU region. | |
169 | ||
170 | config NIOS2_KERNEL_REGION_BASE_BOOL | |
171 | bool "Set custom kernel region base address" | |
172 | depends on ADVANCED_OPTIONS | |
173 | help | |
174 | This option allows you to set the virtual address of the kernel region. | |
175 | ||
176 | Say N here unless you know what you are doing. | |
177 | ||
178 | config NIOS2_KERNEL_REGION_BASE | |
179 | hex "Virtual base address of the kernel region " if NIOS2_KERNEL_REGION_BASE_BOOL | |
180 | default "0xc0000000" | |
181 | ||
182 | config NIOS2_IO_REGION_BASE_BOOL | |
183 | bool "Set custom I/O region base address" | |
184 | depends on ADVANCED_OPTIONS | |
185 | help | |
186 | This option allows you to set the virtual address of the I/O region. | |
187 | ||
188 | Say N here unless you know what you are doing. | |
189 | ||
190 | config NIOS2_IO_REGION_BASE | |
191 | hex "Virtual base address of the I/O region" if NIOS2_IO_REGION_BASE_BOOL | |
192 | default "0xe0000000" | |
193 | ||
194 | endmenu | |
195 | ||
196 | menu "Executable file formats" | |
197 | ||
198 | source "fs/Kconfig.binfmt" | |
199 | ||
200 | endmenu | |
201 | ||
202 | source "net/Kconfig" | |
203 | ||
204 | source "drivers/Kconfig" | |
205 | ||
206 | source "fs/Kconfig" | |
207 | ||
208 | source "arch/nios2/Kconfig.debug" | |
209 | ||
210 | source "security/Kconfig" | |
211 | ||
212 | source "crypto/Kconfig" | |
213 | ||
214 | source "lib/Kconfig" |