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 select GENERIC_CPU_DEVICES 19 select GENERIC_ATOMIC64 20 21config MMU 22 def_bool y 23 24config SYMBOL_PREFIX 25 string 26 default "" 27 28config HAVE_DMA_ATTRS 29 def_bool y 30 31config UID16 32 def_bool y 33 34config RWSEM_GENERIC_SPINLOCK 35 def_bool y 36 37config RWSEM_XCHGADD_ALGORITHM 38 def_bool n 39 40config GENERIC_HWEIGHT 41 def_bool y 42 43config NO_IOPORT 44 def_bool y 45 46config GENERIC_GPIO 47 def_bool y 48 49config GENERIC_CLOCKEVENTS 50 def_bool y 51 52config TRACE_IRQFLAGS_SUPPORT 53 def_bool y 54 55# For now, use generic checksum functions 56#These can be reimplemented in assembly later if so inclined 57config GENERIC_CSUM 58 def_bool y 59 60config GENERIC_FIND_NEXT_BIT 61 def_bool y 62 63source "init/Kconfig" 64 65 66menu "Processor type and features" 67 68choice 69 prompt "Subarchitecture" 70 default OR1K_1200 71 72config OR1K_1200 73 bool "OR1200" 74 help 75 Generic OpenRISC 1200 architecture 76 77endchoice 78 79config OPENRISC_BUILTIN_DTB 80 string "Builtin DTB" 81 default "" 82 83menu "Class II Instructions" 84 85config OPENRISC_HAVE_INST_FF1 86 bool "Have instruction l.ff1" 87 default y 88 help 89 Select this if your implementation has the Class II instruction l.ff1 90 91config OPENRISC_HAVE_INST_FL1 92 bool "Have instruction l.fl1" 93 default y 94 help 95 Select this if your implementation has the Class II instruction l.fl1 96 97config OPENRISC_HAVE_INST_MUL 98 bool "Have instruction l.mul for hardware multiply" 99 default y 100 help 101 Select this if your implementation has a hardware multiply instruction 102 103config OPENRISC_HAVE_INST_DIV 104 bool "Have instruction l.div for hardware divide" 105 default y 106 help 107 Select this if your implementation has a hardware divide instruction 108endmenu 109 110 111source "kernel/time/Kconfig" 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 avaliable 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