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