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 select MODULES_USE_ELF_RELA 25 26config MMU 27 def_bool y 28 29config SYMBOL_PREFIX 30 string 31 default "" 32 33config HAVE_DMA_ATTRS 34 def_bool y 35 36config UID16 37 def_bool y 38 39config RWSEM_GENERIC_SPINLOCK 40 def_bool y 41 42config RWSEM_XCHGADD_ALGORITHM 43 def_bool n 44 45config GENERIC_HWEIGHT 46 def_bool y 47 48config NO_IOPORT 49 def_bool y 50 51config GENERIC_GPIO 52 def_bool y 53 54config TRACE_IRQFLAGS_SUPPORT 55 def_bool y 56 57# For now, use generic checksum functions 58#These can be reimplemented in assembly later if so inclined 59config GENERIC_CSUM 60 def_bool y 61 62config GENERIC_FIND_NEXT_BIT 63 def_bool y 64 65source "init/Kconfig" 66 67 68menu "Processor type and features" 69 70choice 71 prompt "Subarchitecture" 72 default OR1K_1200 73 74config OR1K_1200 75 bool "OR1200" 76 help 77 Generic OpenRISC 1200 architecture 78 79endchoice 80 81config OPENRISC_BUILTIN_DTB 82 string "Builtin DTB" 83 default "" 84 85menu "Class II Instructions" 86 87config OPENRISC_HAVE_INST_FF1 88 bool "Have instruction l.ff1" 89 default y 90 help 91 Select this if your implementation has the Class II instruction l.ff1 92 93config OPENRISC_HAVE_INST_FL1 94 bool "Have instruction l.fl1" 95 default y 96 help 97 Select this if your implementation has the Class II instruction l.fl1 98 99config OPENRISC_HAVE_INST_MUL 100 bool "Have instruction l.mul for hardware multiply" 101 default y 102 help 103 Select this if your implementation has a hardware multiply instruction 104 105config OPENRISC_HAVE_INST_DIV 106 bool "Have instruction l.div for hardware divide" 107 default y 108 help 109 Select this if your implementation has a hardware divide instruction 110endmenu 111 112 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 available 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 gracefully. 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