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
32 config RWSEM_GENERIC_SPINLOCK
35 config RWSEM_XCHGADD_ALGORITHM
38 config GENERIC_HWEIGHT
47 config GENERIC_CLOCKEVENTS
50 config TRACE_IRQFLAGS_SUPPORT
53 # For now, use generic checksum functions
54 #These can be reimplemented in assembly later if so inclined
58 config GENERIC_FIND_NEXT_BIT
64 menu "Processor type and features"
67 prompt "Subarchitecture"
73 Generic OpenRISC 1200 architecture
77 config OPENRISC_BUILTIN_DTB
81 menu "Class II Instructions"
83 config OPENRISC_HAVE_INST_FF1
84 bool "Have instruction l.ff1"
87 Select this if your implementation has the Class II instruction l.ff1
89 config OPENRISC_HAVE_INST_FL1
90 bool "Have instruction l.fl1"
93 Select this if your implementation has the Class II instruction l.fl1
95 config OPENRISC_HAVE_INST_MUL
96 bool "Have instruction l.mul for hardware multiply"
99 Select this if your implementation has a hardware multiply instruction
101 config OPENRISC_HAVE_INST_DIV
102 bool "Have instruction l.div for hardware divide"
105 Select this if your implementation has a hardware divide instruction
109 source "kernel/time/Kconfig"
110 source kernel/Kconfig.hz
111 source kernel/Kconfig.preempt
114 config OPENRISC_NO_SPR_SR_DSX
115 bool "use SPR_SR_DSX software emulation" if OR1K_1200
118 SPR_SR_DSX bit is status register bit indicating whether
119 the last exception has happened in delay slot.
121 OpenRISC architecture makes it optional to have it implemented
122 in hardware and the OR1200 does not have it.
124 Say N here if you know that your OpenRISC processor has
125 SPR_SR_DSX bit implemented. Say Y if you are unsure.
128 string "Default kernel command string"
131 On some architectures there is currently no way for the boot loader
132 to pass arguments to the kernel. For these architectures, you should
133 supply some command-line options at build time by entering them
136 menu "Debugging options"
138 config DEBUG_STACKOVERFLOW
139 bool "Check for kernel stack overflow"
142 Make extra checks for space avaliable on stack in some
143 critical functions. This will cause kernel to run a bit slower,
144 but will catch most of kernel stack overruns and exit gracefuly.
146 Say Y if you are unsure.
148 config JUMP_UPON_UNHANDLED_EXCEPTION
149 bool "Try to die gracefully"
152 Now this puts kernel into infinite loop after first oops. Till
153 your kernel crashes this doesn't have any influence.
155 Say Y if you are unsure.
157 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
158 bool "Check for possible ESR exception bug"
161 This option enables some checks that might expose some problems
164 Say N if you are unsure.
170 menu "Executable file formats"
172 source "fs/Kconfig.binfmt"
178 source "drivers/Kconfig"
182 source "security/Kconfig"
184 source "crypto/Kconfig"
188 menu "Kernel hacking"
190 source "lib/Kconfig.debug"