1# 2# For a description of the syntax of this configuration file, 3# see Documentation/kbuild/kconfig-language.txt. 4# 5 6config OPENRISC 7 def_bool y 8 select OF 9 select OF_EARLY_FLATTREE 10 select IRQ_DOMAIN 11 select HAVE_MEMBLOCK 12 select ARCH_WANT_OPTIONAL_GPIOLIB 13 select HAVE_ARCH_TRACEHOOK 14 select HAVE_GENERIC_HARDIRQS 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 25config MMU 26 def_bool y 27 28config SYMBOL_PREFIX 29 string 30 default "" 31 32config HAVE_DMA_ATTRS 33 def_bool y 34 35config UID16 36 def_bool y 37 38config RWSEM_GENERIC_SPINLOCK 39 def_bool y 40 41config RWSEM_XCHGADD_ALGORITHM 42 def_bool n 43 44config GENERIC_HWEIGHT 45 def_bool y 46 47config NO_IOPORT 48 def_bool y 49 50config GENERIC_GPIO 51 def_bool y 52 53config TRACE_IRQFLAGS_SUPPORT 54 def_bool y 55 56# For now, use generic checksum functions 57#These can be reimplemented in assembly later if so inclined 58config GENERIC_CSUM 59 def_bool y 60 61config GENERIC_FIND_NEXT_BIT 62 def_bool y 63 64source "init/Kconfig" 65 66 67menu "Processor type and features" 68 69choice 70 prompt "Subarchitecture" 71 default OR1K_1200 72 73config OR1K_1200 74 bool "OR1200" 75 help 76 Generic OpenRISC 1200 architecture 77 78endchoice 79 80config OPENRISC_BUILTIN_DTB 81 string "Builtin DTB" 82 default "" 83 84menu "Class II Instructions" 85 86config OPENRISC_HAVE_INST_FF1 87 bool "Have instruction l.ff1" 88 default y 89 help 90 Select this if your implementation has the Class II instruction l.ff1 91 92config OPENRISC_HAVE_INST_FL1 93 bool "Have instruction l.fl1" 94 default y 95 help 96 Select this if your implementation has the Class II instruction l.fl1 97 98config OPENRISC_HAVE_INST_MUL 99 bool "Have instruction l.mul for hardware multiply" 100 default y 101 help 102 Select this if your implementation has a hardware multiply instruction 103 104config OPENRISC_HAVE_INST_DIV 105 bool "Have instruction l.div for hardware divide" 106 default y 107 help 108 Select this if your implementation has a hardware divide instruction 109endmenu 110 111 112source kernel/Kconfig.hz 113source kernel/Kconfig.preempt 114source "mm/Kconfig" 115 116config OPENRISC_NO_SPR_SR_DSX 117 bool "use SPR_SR_DSX software emulation" if OR1K_1200 118 default y 119 help 120 SPR_SR_DSX bit is status register bit indicating whether 121 the last exception has happened in delay slot. 122 123 OpenRISC architecture makes it optional to have it implemented 124 in hardware and the OR1200 does not have it. 125 126 Say N here if you know that your OpenRISC processor has 127 SPR_SR_DSX bit implemented. Say Y if you are unsure. 128 129config CMDLINE 130 string "Default kernel command string" 131 default "" 132 help 133 On some architectures there is currently no way for the boot loader 134 to pass arguments to the kernel. For these architectures, you should 135 supply some command-line options at build time by entering them 136 here. 137 138menu "Debugging options" 139 140config DEBUG_STACKOVERFLOW 141 bool "Check for kernel stack overflow" 142 default y 143 help 144 Make extra checks for space available on stack in some 145 critical functions. This will cause kernel to run a bit slower, 146 but will catch most of kernel stack overruns and exit gracefuly. 147 148 Say Y if you are unsure. 149 150config JUMP_UPON_UNHANDLED_EXCEPTION 151 bool "Try to die gracefully" 152 default y 153 help 154 Now this puts kernel into infinite loop after first oops. Till 155 your kernel crashes this doesn't have any influence. 156 157 Say Y if you are unsure. 158 159config OPENRISC_ESR_EXCEPTION_BUG_CHECK 160 bool "Check for possible ESR exception bug" 161 default n 162 help 163 This option enables some checks that might expose some problems 164 in kernel. 165 166 Say N if you are unsure. 167 168endmenu 169 170endmenu 171 172menu "Executable file formats" 173 174source "fs/Kconfig.binfmt" 175 176endmenu 177 178source "net/Kconfig" 179 180source "drivers/Kconfig" 181 182source "fs/Kconfig" 183 184source "security/Kconfig" 185 186source "crypto/Kconfig" 187 188source "lib/Kconfig" 189 190menu "Kernel hacking" 191 192source "lib/Kconfig.debug" 193 194endmenu 195