2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
9 select OF_EARLY_FLATTREE
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
18 select GENERIC_CPU_DEVICES
19 select GENERIC_ATOMIC64
34 config RWSEM_GENERIC_SPINLOCK
37 config RWSEM_XCHGADD_ALGORITHM
40 config GENERIC_HWEIGHT
49 config GENERIC_CLOCKEVENTS
52 config TRACE_IRQFLAGS_SUPPORT
55 # For now, use generic checksum functions
56 #These can be reimplemented in assembly later if so inclined
60 config GENERIC_FIND_NEXT_BIT
66 menu "Processor type and features"
69 prompt "Subarchitecture"
75 Generic OpenRISC 1200 architecture
79 config OPENRISC_BUILTIN_DTB
83 menu "Class II Instructions"
85 config OPENRISC_HAVE_INST_FF1
86 bool "Have instruction l.ff1"
89 Select this if your implementation has the Class II instruction l.ff1
91 config OPENRISC_HAVE_INST_FL1
92 bool "Have instruction l.fl1"
95 Select this if your implementation has the Class II instruction l.fl1
97 config OPENRISC_HAVE_INST_MUL
98 bool "Have instruction l.mul for hardware multiply"
101 Select this if your implementation has a hardware multiply instruction
103 config OPENRISC_HAVE_INST_DIV
104 bool "Have instruction l.div for hardware divide"
107 Select this if your implementation has a hardware divide instruction
111 source "kernel/time/Kconfig"
112 source kernel/Kconfig.hz
113 source kernel/Kconfig.preempt
116 config OPENRISC_NO_SPR_SR_DSX
117 bool "use SPR_SR_DSX software emulation" if OR1K_1200
120 SPR_SR_DSX bit is status register bit indicating whether
121 the last exception has happened in delay slot.
123 OpenRISC architecture makes it optional to have it implemented
124 in hardware and the OR1200 does not have it.
126 Say N here if you know that your OpenRISC processor has
127 SPR_SR_DSX bit implemented. Say Y if you are unsure.
130 string "Default kernel command string"
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
138 menu "Debugging options"
140 config DEBUG_STACKOVERFLOW
141 bool "Check for kernel stack overflow"
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.
148 Say Y if you are unsure.
150 config JUMP_UPON_UNHANDLED_EXCEPTION
151 bool "Try to die gracefully"
154 Now this puts kernel into infinite loop after first oops. Till
155 your kernel crashes this doesn't have any influence.
157 Say Y if you are unsure.
159 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
160 bool "Check for possible ESR exception bug"
163 This option enables some checks that might expose some problems
166 Say N if you are unsure.
172 menu "Executable file formats"
174 source "fs/Kconfig.binfmt"
180 source "drivers/Kconfig"
184 source "security/Kconfig"
186 source "crypto/Kconfig"
190 menu "Kernel hacking"
192 source "lib/Kconfig.debug"