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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 | 11 | select HAVE_MEMBLOCK |
d4cb776f | 12 | select ARCH_REQUIRE_GPIOLIB |
f8c4a270 JB |
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 |
b48b2c3e | 23 | select GENERIC_STRNLEN_USER |
786d35d4 | 24 | select MODULES_USE_ELF_RELA |
f8c4a270 JB |
25 | |
26 | config MMU | |
27 | def_bool y | |
28 | ||
f8c4a270 JB |
29 | config HAVE_DMA_ATTRS |
30 | def_bool y | |
31 | ||
32 | config UID16 | |
33 | def_bool y | |
34 | ||
35 | config RWSEM_GENERIC_SPINLOCK | |
36 | def_bool y | |
37 | ||
38 | config RWSEM_XCHGADD_ALGORITHM | |
39 | def_bool n | |
40 | ||
41 | config GENERIC_HWEIGHT | |
42 | def_bool y | |
43 | ||
f8c4a270 JB |
44 | config NO_IOPORT |
45 | def_bool y | |
46 | ||
f8c4a270 JB |
47 | config TRACE_IRQFLAGS_SUPPORT |
48 | def_bool y | |
49 | ||
50 | # For now, use generic checksum functions | |
51 | #These can be reimplemented in assembly later if so inclined | |
52 | config GENERIC_CSUM | |
53 | def_bool y | |
54 | ||
f8c4a270 JB |
55 | source "init/Kconfig" |
56 | ||
57 | ||
58 | menu "Processor type and features" | |
59 | ||
60 | choice | |
61 | prompt "Subarchitecture" | |
62 | default OR1K_1200 | |
63 | ||
64 | config OR1K_1200 | |
65 | bool "OR1200" | |
66 | help | |
67 | Generic OpenRISC 1200 architecture | |
68 | ||
69 | endchoice | |
70 | ||
71 | config OPENRISC_BUILTIN_DTB | |
72 | string "Builtin DTB" | |
73 | default "" | |
74 | ||
75 | menu "Class II Instructions" | |
76 | ||
77 | config OPENRISC_HAVE_INST_FF1 | |
78 | bool "Have instruction l.ff1" | |
79 | default y | |
80 | help | |
81 | Select this if your implementation has the Class II instruction l.ff1 | |
82 | ||
83 | config OPENRISC_HAVE_INST_FL1 | |
84 | bool "Have instruction l.fl1" | |
85 | default y | |
86 | help | |
87 | Select this if your implementation has the Class II instruction l.fl1 | |
88 | ||
89 | config OPENRISC_HAVE_INST_MUL | |
90 | bool "Have instruction l.mul for hardware multiply" | |
91 | default y | |
92 | help | |
93 | Select this if your implementation has a hardware multiply instruction | |
94 | ||
95 | config OPENRISC_HAVE_INST_DIV | |
96 | bool "Have instruction l.div for hardware divide" | |
97 | default y | |
98 | help | |
99 | Select this if your implementation has a hardware divide instruction | |
100 | endmenu | |
101 | ||
102 | ||
f8c4a270 JB |
103 | source kernel/Kconfig.hz |
104 | source kernel/Kconfig.preempt | |
105 | source "mm/Kconfig" | |
106 | ||
107 | config OPENRISC_NO_SPR_SR_DSX | |
108 | bool "use SPR_SR_DSX software emulation" if OR1K_1200 | |
109 | default y | |
110 | help | |
111 | SPR_SR_DSX bit is status register bit indicating whether | |
112 | the last exception has happened in delay slot. | |
113 | ||
114 | OpenRISC architecture makes it optional to have it implemented | |
115 | in hardware and the OR1200 does not have it. | |
116 | ||
117 | Say N here if you know that your OpenRISC processor has | |
118 | SPR_SR_DSX bit implemented. Say Y if you are unsure. | |
119 | ||
120 | config CMDLINE | |
121 | string "Default kernel command string" | |
122 | default "" | |
123 | help | |
124 | On some architectures there is currently no way for the boot loader | |
125 | to pass arguments to the kernel. For these architectures, you should | |
126 | supply some command-line options at build time by entering them | |
127 | here. | |
128 | ||
129 | menu "Debugging options" | |
130 | ||
131 | config DEBUG_STACKOVERFLOW | |
132 | bool "Check for kernel stack overflow" | |
133 | default y | |
134 | help | |
6b2aac42 | 135 | Make extra checks for space available on stack in some |
f8c4a270 | 136 | critical functions. This will cause kernel to run a bit slower, |
e41e85cc | 137 | but will catch most of kernel stack overruns and exit gracefully. |
f8c4a270 JB |
138 | |
139 | Say Y if you are unsure. | |
140 | ||
141 | config JUMP_UPON_UNHANDLED_EXCEPTION | |
142 | bool "Try to die gracefully" | |
143 | default y | |
144 | help | |
145 | Now this puts kernel into infinite loop after first oops. Till | |
146 | your kernel crashes this doesn't have any influence. | |
147 | ||
148 | Say Y if you are unsure. | |
149 | ||
f8c4a270 JB |
150 | config OPENRISC_ESR_EXCEPTION_BUG_CHECK |
151 | bool "Check for possible ESR exception bug" | |
152 | default n | |
153 | help | |
154 | This option enables some checks that might expose some problems | |
155 | in kernel. | |
156 | ||
157 | Say N if you are unsure. | |
158 | ||
159 | endmenu | |
160 | ||
161 | endmenu | |
162 | ||
163 | menu "Executable file formats" | |
164 | ||
165 | source "fs/Kconfig.binfmt" | |
166 | ||
167 | endmenu | |
168 | ||
169 | source "net/Kconfig" | |
170 | ||
171 | source "drivers/Kconfig" | |
172 | ||
173 | source "fs/Kconfig" | |
174 | ||
175 | source "security/Kconfig" | |
176 | ||
177 | source "crypto/Kconfig" | |
178 | ||
179 | source "lib/Kconfig" | |
180 | ||
181 | menu "Kernel hacking" | |
182 | ||
183 | source "lib/Kconfig.debug" | |
184 | ||
185 | endmenu |