2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
9 select OF_EARLY_FLATTREE
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
19 select GENERIC_CPU_DEVICES
20 select GENERIC_ATOMIC64
35 config RWSEM_GENERIC_SPINLOCK
38 config RWSEM_XCHGADD_ALGORITHM
41 config GENERIC_HWEIGHT
50 config GENERIC_CLOCKEVENTS
53 config TRACE_IRQFLAGS_SUPPORT
56 # For now, use generic checksum functions
57 #These can be reimplemented in assembly later if so inclined
61 config GENERIC_FIND_NEXT_BIT
67 menu "Processor type and features"
70 prompt "Subarchitecture"
76 Generic OpenRISC 1200 architecture
80 config OPENRISC_BUILTIN_DTB
84 menu "Class II Instructions"
86 config OPENRISC_HAVE_INST_FF1
87 bool "Have instruction l.ff1"
90 Select this if your implementation has the Class II instruction l.ff1
92 config OPENRISC_HAVE_INST_FL1
93 bool "Have instruction l.fl1"
96 Select this if your implementation has the Class II instruction l.fl1
98 config OPENRISC_HAVE_INST_MUL
99 bool "Have instruction l.mul for hardware multiply"
102 Select this if your implementation has a hardware multiply instruction
104 config OPENRISC_HAVE_INST_DIV
105 bool "Have instruction l.div for hardware divide"
108 Select this if your implementation has a hardware divide instruction
112 source "kernel/time/Kconfig"
113 source kernel/Kconfig.hz
114 source kernel/Kconfig.preempt
117 config OPENRISC_NO_SPR_SR_DSX
118 bool "use SPR_SR_DSX software emulation" if OR1K_1200
121 SPR_SR_DSX bit is status register bit indicating whether
122 the last exception has happened in delay slot.
124 OpenRISC architecture makes it optional to have it implemented
125 in hardware and the OR1200 does not have it.
127 Say N here if you know that your OpenRISC processor has
128 SPR_SR_DSX bit implemented. Say Y if you are unsure.
131 string "Default kernel command string"
134 On some architectures there is currently no way for the boot loader
135 to pass arguments to the kernel. For these architectures, you should
136 supply some command-line options at build time by entering them
139 menu "Debugging options"
141 config DEBUG_STACKOVERFLOW
142 bool "Check for kernel stack overflow"
145 Make extra checks for space available on stack in some
146 critical functions. This will cause kernel to run a bit slower,
147 but will catch most of kernel stack overruns and exit gracefuly.
149 Say Y if you are unsure.
151 config JUMP_UPON_UNHANDLED_EXCEPTION
152 bool "Try to die gracefully"
155 Now this puts kernel into infinite loop after first oops. Till
156 your kernel crashes this doesn't have any influence.
158 Say Y if you are unsure.
160 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
161 bool "Check for possible ESR exception bug"
164 This option enables some checks that might expose some problems
167 Say N if you are unsure.
173 menu "Executable file formats"
175 source "fs/Kconfig.binfmt"
181 source "drivers/Kconfig"
185 source "security/Kconfig"
187 source "crypto/Kconfig"
191 menu "Kernel hacking"
193 source "lib/Kconfig.debug"