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 HAVE_MEMBLOCK 11 select ARCH_WANT_OPTIONAL_GPIOLIB 12 select HAVE_ARCH_TRACEHOOK 13 select HAVE_GENERIC_HARDIRQS 14 select GENERIC_IRQ_CHIP 15 select GENERIC_IRQ_PROBE 16 select GENERIC_IRQ_SHOW 17 select GENERIC_IOMAP 18 19config MMU 20 def_bool y 21 22config SYMBOL_PREFIX 23 string 24 default "" 25 26config HAVE_DMA_ATTRS 27 def_bool y 28 29config UID16 30 def_bool y 31 32config RWSEM_GENERIC_SPINLOCK 33 def_bool y 34 35config RWSEM_XCHGADD_ALGORITHM 36 def_bool n 37 38config GENERIC_HWEIGHT 39 def_bool y 40 41config GENERIC_IOMAP 42 def_bool y 43 44config NO_IOPORT 45 def_bool y 46 47config GENERIC_GPIO 48 def_bool y 49 50config GENERIC_CLOCKEVENTS 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/time/Kconfig" 113source kernel/Kconfig.hz 114source kernel/Kconfig.preempt 115source "mm/Kconfig" 116 117config OPENRISC_NO_SPR_SR_DSX 118 bool "use SPR_SR_DSX software emulation" if OR1K_1200 119 default y 120 help 121 SPR_SR_DSX bit is status register bit indicating whether 122 the last exception has happened in delay slot. 123 124 OpenRISC architecture makes it optional to have it implemented 125 in hardware and the OR1200 does not have it. 126 127 Say N here if you know that your OpenRISC processor has 128 SPR_SR_DSX bit implemented. Say Y if you are unsure. 129 130config CMDLINE 131 string "Default kernel command string" 132 default "" 133 help 134 On some architectures there is currently no way for the boot loader 135 to pass arguments to the kernel. For these architectures, you should 136 supply some command-line options at build time by entering them 137 here. 138 139menu "Debugging options" 140 141config DEBUG_STACKOVERFLOW 142 bool "Check for kernel stack overflow" 143 default y 144 help 145 Make extra checks for space avaliable on stack in some 146 critical functions. This will cause kernel to run a bit slower, 147 but will catch most of kernel stack overruns and exit gracefuly. 148 149 Say Y if you are unsure. 150 151config JUMP_UPON_UNHANDLED_EXCEPTION 152 bool "Try to die gracefully" 153 default y 154 help 155 Now this puts kernel into infinite loop after first oops. Till 156 your kernel crashes this doesn't have any influence. 157 158 Say Y if you are unsure. 159 160config OPENRISC_ESR_EXCEPTION_BUG_CHECK 161 bool "Check for possible ESR exception bug" 162 default n 163 help 164 This option enables some checks that might expose some problems 165 in kernel. 166 167 Say N if you are unsure. 168 169endmenu 170 171endmenu 172 173menu "Executable file formats" 174 175source "fs/Kconfig.binfmt" 176 177endmenu 178 179source "net/Kconfig" 180 181source "drivers/Kconfig" 182 183source "fs/Kconfig" 184 185source "security/Kconfig" 186 187source "crypto/Kconfig" 188 189source "lib/Kconfig" 190 191menu "Kernel hacking" 192 193source "lib/Kconfig.debug" 194 195endmenu 196