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