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1 | # |
2 | # For a description of the syntax of this configuration file, | |
395cf969 | 3 | # see Documentation/kbuild/kconfig-language.txt. |
f8c4a270 JB |
4 | # |
5 | ||
6 | config OPENRISC | |
7 | def_bool y | |
8 | select OF | |
9 | select OF_EARLY_FLATTREE | |
b4c4c6ee | 10 | select IRQ_DOMAIN |
f8c4a270 JB |
11 | select HAVE_MEMBLOCK |
12 | select ARCH_WANT_OPTIONAL_GPIOLIB | |
13 | select HAVE_ARCH_TRACEHOOK | |
14 | select HAVE_GENERIC_HARDIRQS | |
15 | select GENERIC_IRQ_CHIP | |
16 | select GENERIC_IRQ_PROBE | |
17 | select GENERIC_IRQ_SHOW | |
18 | select GENERIC_IOMAP | |
9f13a1fd | 19 | select GENERIC_CPU_DEVICES |
0662d33a | 20 | select GENERIC_ATOMIC64 |
5bf8f6bf | 21 | select GENERIC_CLOCKEVENTS |
603d6637 | 22 | select GENERIC_STRNCPY_FROM_USER |
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23 | |
24 | config MMU | |
25 | def_bool y | |
26 | ||
f8c4a270 JB |
27 | config SYMBOL_PREFIX |
28 | string | |
29 | default "" | |
30 | ||
31 | config HAVE_DMA_ATTRS | |
32 | def_bool y | |
33 | ||
34 | config UID16 | |
35 | def_bool y | |
36 | ||
37 | config RWSEM_GENERIC_SPINLOCK | |
38 | def_bool y | |
39 | ||
40 | config RWSEM_XCHGADD_ALGORITHM | |
41 | def_bool n | |
42 | ||
43 | config GENERIC_HWEIGHT | |
44 | def_bool y | |
45 | ||
f8c4a270 JB |
46 | config NO_IOPORT |
47 | def_bool y | |
48 | ||
49 | config GENERIC_GPIO | |
50 | def_bool y | |
51 | ||
f8c4a270 JB |
52 | config TRACE_IRQFLAGS_SUPPORT |
53 | def_bool y | |
54 | ||
55 | # For now, use generic checksum functions | |
56 | #These can be reimplemented in assembly later if so inclined | |
57 | config GENERIC_CSUM | |
58 | def_bool y | |
59 | ||
60 | config GENERIC_FIND_NEXT_BIT | |
61 | def_bool y | |
62 | ||
63 | source "init/Kconfig" | |
64 | ||
65 | ||
66 | menu "Processor type and features" | |
67 | ||
68 | choice | |
69 | prompt "Subarchitecture" | |
70 | default OR1K_1200 | |
71 | ||
72 | config OR1K_1200 | |
73 | bool "OR1200" | |
74 | help | |
75 | Generic OpenRISC 1200 architecture | |
76 | ||
77 | endchoice | |
78 | ||
79 | config OPENRISC_BUILTIN_DTB | |
80 | string "Builtin DTB" | |
81 | default "" | |
82 | ||
83 | menu "Class II Instructions" | |
84 | ||
85 | config OPENRISC_HAVE_INST_FF1 | |
86 | bool "Have instruction l.ff1" | |
87 | default y | |
88 | help | |
89 | Select this if your implementation has the Class II instruction l.ff1 | |
90 | ||
91 | config OPENRISC_HAVE_INST_FL1 | |
92 | bool "Have instruction l.fl1" | |
93 | default y | |
94 | help | |
95 | Select this if your implementation has the Class II instruction l.fl1 | |
96 | ||
97 | config OPENRISC_HAVE_INST_MUL | |
98 | bool "Have instruction l.mul for hardware multiply" | |
99 | default y | |
100 | help | |
101 | Select this if your implementation has a hardware multiply instruction | |
102 | ||
103 | config OPENRISC_HAVE_INST_DIV | |
104 | bool "Have instruction l.div for hardware divide" | |
105 | default y | |
106 | help | |
107 | Select this if your implementation has a hardware divide instruction | |
108 | endmenu | |
109 | ||
110 | ||
f8c4a270 JB |
111 | source kernel/Kconfig.hz |
112 | source kernel/Kconfig.preempt | |
113 | source "mm/Kconfig" | |
114 | ||
115 | config OPENRISC_NO_SPR_SR_DSX | |
116 | bool "use SPR_SR_DSX software emulation" if OR1K_1200 | |
117 | default y | |
118 | help | |
119 | SPR_SR_DSX bit is status register bit indicating whether | |
120 | the last exception has happened in delay slot. | |
121 | ||
122 | OpenRISC architecture makes it optional to have it implemented | |
123 | in hardware and the OR1200 does not have it. | |
124 | ||
125 | Say N here if you know that your OpenRISC processor has | |
126 | SPR_SR_DSX bit implemented. Say Y if you are unsure. | |
127 | ||
128 | config CMDLINE | |
129 | string "Default kernel command string" | |
130 | default "" | |
131 | help | |
132 | On some architectures there is currently no way for the boot loader | |
133 | to pass arguments to the kernel. For these architectures, you should | |
134 | supply some command-line options at build time by entering them | |
135 | here. | |
136 | ||
137 | menu "Debugging options" | |
138 | ||
139 | config DEBUG_STACKOVERFLOW | |
140 | bool "Check for kernel stack overflow" | |
141 | default y | |
142 | help | |
6b2aac42 | 143 | Make extra checks for space available on stack in some |
f8c4a270 JB |
144 | critical functions. This will cause kernel to run a bit slower, |
145 | but will catch most of kernel stack overruns and exit gracefuly. | |
146 | ||
147 | Say Y if you are unsure. | |
148 | ||
149 | config JUMP_UPON_UNHANDLED_EXCEPTION | |
150 | bool "Try to die gracefully" | |
151 | default y | |
152 | help | |
153 | Now this puts kernel into infinite loop after first oops. Till | |
154 | your kernel crashes this doesn't have any influence. | |
155 | ||
156 | Say Y if you are unsure. | |
157 | ||
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158 | config OPENRISC_ESR_EXCEPTION_BUG_CHECK |
159 | bool "Check for possible ESR exception bug" | |
160 | default n | |
161 | help | |
162 | This option enables some checks that might expose some problems | |
163 | in kernel. | |
164 | ||
165 | Say N if you are unsure. | |
166 | ||
167 | endmenu | |
168 | ||
169 | endmenu | |
170 | ||
171 | menu "Executable file formats" | |
172 | ||
173 | source "fs/Kconfig.binfmt" | |
174 | ||
175 | endmenu | |
176 | ||
177 | source "net/Kconfig" | |
178 | ||
179 | source "drivers/Kconfig" | |
180 | ||
181 | source "fs/Kconfig" | |
182 | ||
183 | source "security/Kconfig" | |
184 | ||
185 | source "crypto/Kconfig" | |
186 | ||
187 | source "lib/Kconfig" | |
188 | ||
189 | menu "Kernel hacking" | |
190 | ||
191 | source "lib/Kconfig.debug" | |
192 | ||
193 | endmenu |