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