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

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