blob: a4787197d8fe3ea39b28c646ecfed383263ea0f1 [file] [log] [blame]
Jonas Bonnf8c4a272011-06-04 21:52:05 +03001#
2# For a description of the syntax of this configuration file,
Paul Bolle395cf962011-08-15 02:02:26 +02003# see Documentation/kbuild/kconfig-language.txt.
Jonas Bonnf8c4a272011-06-04 21:52:05 +03004#
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
Ben Hutchings9f13a1f2012-01-10 03:04:32 +000018 select GENERIC_CPU_DEVICES
Richard Weinberger0662d332012-03-02 01:55:11 +010019 select GENERIC_ATOMIC64
Jonas Bonnf8c4a272011-06-04 21:52:05 +030020
21config MMU
22 def_bool y
23
Jonas Bonnf8c4a272011-06-04 21:52:05 +030024config SYMBOL_PREFIX
25 string
26 default ""
27
28config HAVE_DMA_ATTRS
29 def_bool y
30
31config UID16
32 def_bool y
33
34config RWSEM_GENERIC_SPINLOCK
35 def_bool y
36
37config RWSEM_XCHGADD_ALGORITHM
38 def_bool n
39
40config GENERIC_HWEIGHT
41 def_bool y
42
Jonas Bonnf8c4a272011-06-04 21:52:05 +030043config NO_IOPORT
44 def_bool y
45
46config GENERIC_GPIO
47 def_bool y
48
49config GENERIC_CLOCKEVENTS
50 def_bool y
51
52config 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
57config GENERIC_CSUM
58 def_bool y
59
60config GENERIC_FIND_NEXT_BIT
61 def_bool y
62
63source "init/Kconfig"
64
65
66menu "Processor type and features"
67
68choice
69 prompt "Subarchitecture"
70 default OR1K_1200
71
72config OR1K_1200
73 bool "OR1200"
74 help
75 Generic OpenRISC 1200 architecture
76
77endchoice
78
79config OPENRISC_BUILTIN_DTB
80 string "Builtin DTB"
81 default ""
82
83menu "Class II Instructions"
84
85config 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
91config 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
97config 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
103config 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
108endmenu
109
110
111source "kernel/time/Kconfig"
112source kernel/Kconfig.hz
113source kernel/Kconfig.preempt
114source "mm/Kconfig"
115
116config OPENRISC_NO_SPR_SR_DSX
117 bool "use SPR_SR_DSX software emulation" if OR1K_1200
118 default y
119 help
120 SPR_SR_DSX bit is status register bit indicating whether
121 the last exception has happened in delay slot.
122
123 OpenRISC architecture makes it optional to have it implemented
124 in hardware and the OR1200 does not have it.
125
126 Say N here if you know that your OpenRISC processor has
127 SPR_SR_DSX bit implemented. Say Y if you are unsure.
128
129config CMDLINE
130 string "Default kernel command string"
131 default ""
132 help
133 On some architectures there is currently no way for the boot loader
134 to pass arguments to the kernel. For these architectures, you should
135 supply some command-line options at build time by entering them
136 here.
137
138menu "Debugging options"
139
140config DEBUG_STACKOVERFLOW
141 bool "Check for kernel stack overflow"
142 default y
143 help
144 Make extra checks for space avaliable on stack in some
145 critical functions. This will cause kernel to run a bit slower,
146 but will catch most of kernel stack overruns and exit gracefuly.
147
148 Say Y if you are unsure.
149
150config JUMP_UPON_UNHANDLED_EXCEPTION
151 bool "Try to die gracefully"
152 default y
153 help
154 Now this puts kernel into infinite loop after first oops. Till
155 your kernel crashes this doesn't have any influence.
156
157 Say Y if you are unsure.
158
Jonas Bonnf8c4a272011-06-04 21:52:05 +0300159config OPENRISC_ESR_EXCEPTION_BUG_CHECK
160 bool "Check for possible ESR exception bug"
161 default n
162 help
163 This option enables some checks that might expose some problems
164 in kernel.
165
166 Say N if you are unsure.
167
168endmenu
169
170endmenu
171
172menu "Executable file formats"
173
174source "fs/Kconfig.binfmt"
175
176endmenu
177
178source "net/Kconfig"
179
180source "drivers/Kconfig"
181
182source "fs/Kconfig"
183
184source "security/Kconfig"
185
186source "crypto/Kconfig"
187
188source "lib/Kconfig"
189
190menu "Kernel hacking"
191
192source "lib/Kconfig.debug"
193
194endmenu