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Linux/arch/openrisc/Kconfig

  1 #
  2 # For a description of the syntax of this configuration file,
  3 # see Documentation/kbuild/kconfig-language.txt.
  4 #
  5 
  6 config OPENRISC
  7         def_bool y
  8         select OF
  9         select OF_EARLY_FLATTREE
 10         select IRQ_DOMAIN
 11         select HAVE_MEMBLOCK
 12         select ARCH_REQUIRE_GPIOLIB
 13         select HAVE_ARCH_TRACEHOOK
 14         select GENERIC_IRQ_CHIP
 15         select GENERIC_IRQ_PROBE
 16         select GENERIC_IRQ_SHOW
 17         select GENERIC_IOMAP
 18         select GENERIC_CPU_DEVICES
 19         select GENERIC_ATOMIC64
 20         select GENERIC_CLOCKEVENTS
 21         select GENERIC_STRNCPY_FROM_USER
 22         select GENERIC_STRNLEN_USER
 23         select MODULES_USE_ELF_RELA
 24         select HAVE_DEBUG_STACKOVERFLOW
 25         select OR1K_PIC
 26 
 27 config MMU
 28         def_bool y
 29 
 30 config HAVE_DMA_ATTRS
 31         def_bool y
 32 
 33 config UID16
 34         def_bool y
 35 
 36 config RWSEM_GENERIC_SPINLOCK
 37         def_bool y
 38 
 39 config RWSEM_XCHGADD_ALGORITHM
 40         def_bool n
 41 
 42 config GENERIC_HWEIGHT
 43         def_bool y
 44 
 45 config NO_IOPORT_MAP
 46         def_bool y
 47 
 48 config TRACE_IRQFLAGS_SUPPORT
 49         def_bool y
 50 
 51 # For now, use generic checksum functions
 52 #These can be reimplemented in assembly later if so inclined
 53 config GENERIC_CSUM
 54         def_bool y
 55 
 56 source "init/Kconfig"
 57 
 58 source "kernel/Kconfig.freezer"
 59 
 60 menu "Processor type and features"
 61 
 62 choice
 63         prompt "Subarchitecture"
 64         default OR1K_1200
 65 
 66 config OR1K_1200
 67         bool "OR1200"
 68         help
 69           Generic OpenRISC 1200 architecture
 70 
 71 endchoice
 72 
 73 config OPENRISC_BUILTIN_DTB
 74         string "Builtin DTB"
 75         default ""
 76 
 77 menu "Class II Instructions"
 78 
 79 config OPENRISC_HAVE_INST_FF1
 80         bool "Have instruction l.ff1"
 81         default y
 82         help
 83           Select this if your implementation has the Class II instruction l.ff1
 84 
 85 config OPENRISC_HAVE_INST_FL1
 86         bool "Have instruction l.fl1"
 87         default y
 88         help
 89           Select this if your implementation has the Class II instruction l.fl1
 90 
 91 config OPENRISC_HAVE_INST_MUL
 92         bool "Have instruction l.mul for hardware multiply"
 93         default y
 94         help
 95           Select this if your implementation has a hardware multiply instruction
 96 
 97 config OPENRISC_HAVE_INST_DIV
 98         bool "Have instruction l.div for hardware divide"
 99         default y
100         help
101           Select this if your implementation has a hardware divide instruction
102 endmenu
103 
104 
105 source kernel/Kconfig.hz
106 source kernel/Kconfig.preempt
107 source "mm/Kconfig"
108 
109 config OPENRISC_NO_SPR_SR_DSX
110         bool "use SPR_SR_DSX software emulation" if OR1K_1200
111         default y
112         help
113           SPR_SR_DSX bit is status register bit indicating whether
114           the last exception has happened in delay slot.
115 
116           OpenRISC architecture makes it optional to have it implemented
117           in hardware and the OR1200 does not have it.
118 
119           Say N here if you know that your OpenRISC processor has
120           SPR_SR_DSX bit implemented. Say Y if you are unsure.
121 
122 config CMDLINE
123         string "Default kernel command string"
124         default ""
125         help
126           On some architectures there is currently no way for the boot loader
127           to pass arguments to the kernel. For these architectures, you should
128           supply some command-line options at build time by entering them
129           here.
130 
131 menu "Debugging options"
132 
133 config JUMP_UPON_UNHANDLED_EXCEPTION
134         bool "Try to die gracefully"
135         default y
136         help
137           Now this puts kernel into infinite loop after first oops. Till
138           your kernel crashes this doesn't have any influence.
139 
140           Say Y if you are unsure.
141 
142 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
143         bool "Check for possible ESR exception bug"
144         default n
145         help
146           This option enables some checks that might expose some problems
147           in kernel.
148 
149           Say N if you are unsure.
150 
151 endmenu
152 
153 endmenu
154 
155 menu "Executable file formats"
156 
157 source "fs/Kconfig.binfmt"
158 
159 endmenu
160 
161 source "net/Kconfig"
162 
163 source "drivers/Kconfig"
164 
165 source "fs/Kconfig"
166 
167 source "security/Kconfig"
168 
169 source "crypto/Kconfig"
170 
171 source "lib/Kconfig"
172 
173 menu "Kernel hacking"
174 
175 source "lib/Kconfig.debug"
176 
177 endmenu

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