blob: 4558bafbd1a2566d86585399a117e5d97ffab0bb [file] [log] [blame]
Jonas Bonnf8c4a272011-06-04 21:52:05 +03001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/config-language.txt.
4#
5
6config OPENRISC
7 def_bool y
8 select OF
9 select OF_EARLY_FLATTREE
10 select HAVE_MEMBLOCK
11 select ARCH_WANT_OPTIONAL_GPIOLIB
12 select HAVE_ARCH_TRACEHOOK
13 select HAVE_GENERIC_HARDIRQS
14 select GENERIC_IRQ_CHIP
15 select GENERIC_IRQ_PROBE
16 select GENERIC_IRQ_SHOW
17 select GENERIC_IOMAP
18
19config MMU
20 def_bool y
21
22config WISHBONE_BUS_BIG_ENDIAN
23 def_bool y
24
25config SYMBOL_PREFIX
26 string
27 default ""
28
29config HAVE_DMA_ATTRS
30 def_bool y
31
32config UID16
33 def_bool y
34
35config RWSEM_GENERIC_SPINLOCK
36 def_bool y
37
38config RWSEM_XCHGADD_ALGORITHM
39 def_bool n
40
41config GENERIC_HWEIGHT
42 def_bool y
43
44config GENERIC_IOMAP
45 def_bool y
46
47config NO_IOPORT
48 def_bool y
49
50config GENERIC_GPIO
51 def_bool y
52
53config GENERIC_CLOCKEVENTS
54 def_bool y
55
56config TRACE_IRQFLAGS_SUPPORT
57 def_bool y
58
59# For now, use generic checksum functions
60#These can be reimplemented in assembly later if so inclined
61config GENERIC_CSUM
62 def_bool y
63
64config GENERIC_FIND_NEXT_BIT
65 def_bool y
66
67source "init/Kconfig"
68
69
70menu "Processor type and features"
71
72choice
73 prompt "Subarchitecture"
74 default OR1K_1200
75
76config OR1K_1200
77 bool "OR1200"
78 help
79 Generic OpenRISC 1200 architecture
80
81endchoice
82
83config OPENRISC_BUILTIN_DTB
84 string "Builtin DTB"
85 default ""
86
87menu "Class II Instructions"
88
89config OPENRISC_HAVE_INST_FF1
90 bool "Have instruction l.ff1"
91 default y
92 help
93 Select this if your implementation has the Class II instruction l.ff1
94
95config OPENRISC_HAVE_INST_FL1
96 bool "Have instruction l.fl1"
97 default y
98 help
99 Select this if your implementation has the Class II instruction l.fl1
100
101config OPENRISC_HAVE_INST_MUL
102 bool "Have instruction l.mul for hardware multiply"
103 default y
104 help
105 Select this if your implementation has a hardware multiply instruction
106
107config OPENRISC_HAVE_INST_DIV
108 bool "Have instruction l.div for hardware divide"
109 default y
110 help
111 Select this if your implementation has a hardware divide instruction
112endmenu
113
114
115source "kernel/time/Kconfig"
116source kernel/Kconfig.hz
117source kernel/Kconfig.preempt
118source "mm/Kconfig"
119
120config OPENRISC_NO_SPR_SR_DSX
121 bool "use SPR_SR_DSX software emulation" if OR1K_1200
122 default y
123 help
124 SPR_SR_DSX bit is status register bit indicating whether
125 the last exception has happened in delay slot.
126
127 OpenRISC architecture makes it optional to have it implemented
128 in hardware and the OR1200 does not have it.
129
130 Say N here if you know that your OpenRISC processor has
131 SPR_SR_DSX bit implemented. Say Y if you are unsure.
132
133config CMDLINE
134 string "Default kernel command string"
135 default ""
136 help
137 On some architectures there is currently no way for the boot loader
138 to pass arguments to the kernel. For these architectures, you should
139 supply some command-line options at build time by entering them
140 here.
141
142menu "Debugging options"
143
144config DEBUG_STACKOVERFLOW
145 bool "Check for kernel stack overflow"
146 default y
147 help
148 Make extra checks for space avaliable on stack in some
149 critical functions. This will cause kernel to run a bit slower,
150 but will catch most of kernel stack overruns and exit gracefuly.
151
152 Say Y if you are unsure.
153
154config JUMP_UPON_UNHANDLED_EXCEPTION
155 bool "Try to die gracefully"
156 default y
157 help
158 Now this puts kernel into infinite loop after first oops. Till
159 your kernel crashes this doesn't have any influence.
160
161 Say Y if you are unsure.
162
163config OPENRISC_EXCEPTION_DEBUG
164 bool "Print processor state at each exception"
165 default n
166 help
167 This option will make your kernel unusable for all but kernel
168 debugging.
169
170 Say N if you are unsure.
171
172config OPENRISC_ESR_EXCEPTION_BUG_CHECK
173 bool "Check for possible ESR exception bug"
174 default n
175 help
176 This option enables some checks that might expose some problems
177 in kernel.
178
179 Say N if you are unsure.
180
181endmenu
182
183endmenu
184
185menu "Executable file formats"
186
187source "fs/Kconfig.binfmt"
188
189endmenu
190
191source "net/Kconfig"
192
193source "drivers/Kconfig"
194
195source "fs/Kconfig"
196
197source "security/Kconfig"
198
199source "crypto/Kconfig"
200
201source "lib/Kconfig"
202
203menu "Kernel hacking"
204
205source "lib/Kconfig.debug"
206
207endmenu