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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 HAVE_UID16
 21         select GENERIC_ATOMIC64
 22         select GENERIC_CLOCKEVENTS
 23         select GENERIC_STRNCPY_FROM_USER
 24         select GENERIC_STRNLEN_USER
 25         select MODULES_USE_ELF_RELA
 26         select HAVE_DEBUG_STACKOVERFLOW
 27         select OR1K_PIC
 28         select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
 29 
 30 config MMU
 31         def_bool y
 32 
 33 config RWSEM_GENERIC_SPINLOCK
 34         def_bool y
 35 
 36 config RWSEM_XCHGADD_ALGORITHM
 37         def_bool n
 38 
 39 config GENERIC_HWEIGHT
 40         def_bool y
 41 
 42 config NO_IOPORT_MAP
 43         def_bool y
 44 
 45 config TRACE_IRQFLAGS_SUPPORT
 46         def_bool y
 47 
 48 # For now, use generic checksum functions
 49 #These can be reimplemented in assembly later if so inclined
 50 config GENERIC_CSUM
 51         def_bool y
 52 
 53 source "init/Kconfig"
 54 
 55 source "kernel/Kconfig.freezer"
 56 
 57 menu "Processor type and features"
 58 
 59 choice
 60         prompt "Subarchitecture"
 61         default OR1K_1200
 62 
 63 config OR1K_1200
 64         bool "OR1200"
 65         help
 66           Generic OpenRISC 1200 architecture
 67 
 68 endchoice
 69 
 70 config OPENRISC_BUILTIN_DTB
 71         string "Builtin DTB"
 72         default ""
 73 
 74 menu "Class II Instructions"
 75 
 76 config OPENRISC_HAVE_INST_FF1
 77         bool "Have instruction l.ff1"
 78         default y
 79         help
 80           Select this if your implementation has the Class II instruction l.ff1
 81 
 82 config OPENRISC_HAVE_INST_FL1
 83         bool "Have instruction l.fl1"
 84         default y
 85         help
 86           Select this if your implementation has the Class II instruction l.fl1
 87 
 88 config OPENRISC_HAVE_INST_MUL
 89         bool "Have instruction l.mul for hardware multiply"
 90         default y
 91         help
 92           Select this if your implementation has a hardware multiply instruction
 93 
 94 config OPENRISC_HAVE_INST_DIV
 95         bool "Have instruction l.div for hardware divide"
 96         default y
 97         help
 98           Select this if your implementation has a hardware divide instruction
 99 endmenu
100 
101 
102 source kernel/Kconfig.hz
103 source kernel/Kconfig.preempt
104 source "mm/Kconfig"
105 
106 config OPENRISC_NO_SPR_SR_DSX
107         bool "use SPR_SR_DSX software emulation" if OR1K_1200
108         default y
109         help
110           SPR_SR_DSX bit is status register bit indicating whether
111           the last exception has happened in delay slot.
112 
113           OpenRISC architecture makes it optional to have it implemented
114           in hardware and the OR1200 does not have it.
115 
116           Say N here if you know that your OpenRISC processor has
117           SPR_SR_DSX bit implemented. Say Y if you are unsure.
118 
119 config CMDLINE
120         string "Default kernel command string"
121         default ""
122         help
123           On some architectures there is currently no way for the boot loader
124           to pass arguments to the kernel. For these architectures, you should
125           supply some command-line options at build time by entering them
126           here.
127 
128 menu "Debugging options"
129 
130 config JUMP_UPON_UNHANDLED_EXCEPTION
131         bool "Try to die gracefully"
132         default y
133         help
134           Now this puts kernel into infinite loop after first oops. Till
135           your kernel crashes this doesn't have any influence.
136 
137           Say Y if you are unsure.
138 
139 config OPENRISC_ESR_EXCEPTION_BUG_CHECK
140         bool "Check for possible ESR exception bug"
141         default n
142         help
143           This option enables some checks that might expose some problems
144           in kernel.
145 
146           Say N if you are unsure.
147 
148 endmenu
149 
150 endmenu
151 
152 menu "Executable file formats"
153 
154 source "fs/Kconfig.binfmt"
155 
156 endmenu
157 
158 source "net/Kconfig"
159 
160 source "drivers/Kconfig"
161 
162 source "fs/Kconfig"
163 
164 source "security/Kconfig"
165 
166 source "crypto/Kconfig"
167 
168 source "lib/Kconfig"
169 
170 menu "Kernel hacking"
171 
172 source "lib/Kconfig.debug"
173 
174 endmenu

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