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
33 config RWSEM_GENERIC_SPINLOCK
36 config RWSEM_XCHGADD_ALGORITHM
39 config GENERIC_HWEIGHT
48 config GENERIC_CLOCKEVENTS
51 config TRACE_IRQFLAGS_SUPPORT
54 # For now, use generic checksum functions
55 #These can be reimplemented in assembly later if so inclined
59 config GENERIC_FIND_NEXT_BIT
65 menu "Processor type and features"
68 prompt "Subarchitecture"
74 Generic OpenRISC 1200 architecture
78 config OPENRISC_BUILTIN_DTB
82 menu "Class II Instructions"
84 config OPENRISC_HAVE_INST_FF1
85 bool "Have instruction l.ff1"
88 Select this if your implementation has the Class II instruction l.ff1
90 config OPENRISC_HAVE_INST_FL1
91 bool "Have instruction l.fl1"
94 Select this if your implementation has the Class II instruction l.fl1
96 config OPENRISC_HAVE_INST_MUL
97 bool "Have instruction l.mul for hardware multiply"
100 Select this if your implementation has a hardware multiply instruction
102 config OPENRISC_HAVE_INST_DIV
103 bool "Have instruction l.div for hardware divide"
106 Select this if your implementation has a hardware divide instruction
110 source "kernel/time/Kconfig"
111 source kernel/Kconfig.hz
112 source kernel/Kconfig.preempt
115 config OPENRISC_NO_SPR_SR_DSX
116 bool "use SPR_SR_DSX software emulation" if OR1K_1200
119 SPR_SR_DSX bit is status register bit indicating whether
120 the last exception has happened in delay slot.
122 OpenRISC architecture makes it optional to have it implemented
123 in hardware and the OR1200 does not have it.
125 Say N here if you know that your OpenRISC processor has
126 SPR_SR_DSX bit implemented. Say Y if you are unsure.
129 string "Default kernel command string"
132 On some architectures there is currently no way for the boot loader
133 to pass arguments to the kernel. For these architectures, you should
134 supply some command-line options at build time by entering them
137 menu "Debugging options"
139 config DEBUG_STACKOVERFLOW
140 bool "Check for kernel stack overflow"
143 Make extra checks for space avaliable on stack in some
144 critical functions. This will cause kernel to run a bit slower,
145 but will catch most of kernel stack overruns and exit gracefuly.
147 Say Y if you are unsure.
149 config JUMP_UPON_UNHANDLED_EXCEPTION
150 bool "Try to die gracefully"
153 Now this puts kernel into infinite loop after first oops. Till
154 your kernel crashes this doesn't have any influence.
156 Say Y if you are unsure.
158 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
159 bool "Check for possible ESR exception bug"
162 This option enables some checks that might expose some problems
165 Say N if you are unsure.
171 menu "Executable file formats"
173 source "fs/Kconfig.binfmt"
179 source "drivers/Kconfig"
183 source "security/Kconfig"
185 source "crypto/Kconfig"
189 menu "Kernel hacking"
191 source "lib/Kconfig.debug"