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 VIRT_TO_BUS 16 select GENERIC_IRQ_CHIP 17 select GENERIC_IRQ_PROBE 18 select GENERIC_IRQ_SHOW 19 select GENERIC_IOMAP 20 select GENERIC_CPU_DEVICES 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 27config MMU 28 def_bool y 29 30config HAVE_DMA_ATTRS 31 def_bool y 32 33config UID16 34 def_bool y 35 36config RWSEM_GENERIC_SPINLOCK 37 def_bool y 38 39config RWSEM_XCHGADD_ALGORITHM 40 def_bool n 41 42config GENERIC_HWEIGHT 43 def_bool y 44 45config NO_IOPORT 46 def_bool y 47 48config GENERIC_GPIO 49 def_bool y 50 51config TRACE_IRQFLAGS_SUPPORT 52 def_bool y 53 54# For now, use generic checksum functions 55#These can be reimplemented in assembly later if so inclined 56config GENERIC_CSUM 57 def_bool y 58 59config GENERIC_FIND_NEXT_BIT 60 def_bool y 61 62source "init/Kconfig" 63 64 65menu "Processor type and features" 66 67choice 68 prompt "Subarchitecture" 69 default OR1K_1200 70 71config OR1K_1200 72 bool "OR1200" 73 help 74 Generic OpenRISC 1200 architecture 75 76endchoice 77 78config OPENRISC_BUILTIN_DTB 79 string "Builtin DTB" 80 default "" 81 82menu "Class II Instructions" 83 84config OPENRISC_HAVE_INST_FF1 85 bool "Have instruction l.ff1" 86 default y 87 help 88 Select this if your implementation has the Class II instruction l.ff1 89 90config OPENRISC_HAVE_INST_FL1 91 bool "Have instruction l.fl1" 92 default y 93 help 94 Select this if your implementation has the Class II instruction l.fl1 95 96config OPENRISC_HAVE_INST_MUL 97 bool "Have instruction l.mul for hardware multiply" 98 default y 99 help 100 Select this if your implementation has a hardware multiply instruction 101 102config OPENRISC_HAVE_INST_DIV 103 bool "Have instruction l.div for hardware divide" 104 default y 105 help 106 Select this if your implementation has a hardware divide instruction 107endmenu 108 109 110source kernel/Kconfig.hz 111source kernel/Kconfig.preempt 112source "mm/Kconfig" 113 114config OPENRISC_NO_SPR_SR_DSX 115 bool "use SPR_SR_DSX software emulation" if OR1K_1200 116 default y 117 help 118 SPR_SR_DSX bit is status register bit indicating whether 119 the last exception has happened in delay slot. 120 121 OpenRISC architecture makes it optional to have it implemented 122 in hardware and the OR1200 does not have it. 123 124 Say N here if you know that your OpenRISC processor has 125 SPR_SR_DSX bit implemented. Say Y if you are unsure. 126 127config CMDLINE 128 string "Default kernel command string" 129 default "" 130 help 131 On some architectures there is currently no way for the boot loader 132 to pass arguments to the kernel. For these architectures, you should 133 supply some command-line options at build time by entering them 134 here. 135 136menu "Debugging options" 137 138config DEBUG_STACKOVERFLOW 139 bool "Check for kernel stack overflow" 140 default y 141 help 142 Make extra checks for space available on stack in some 143 critical functions. This will cause kernel to run a bit slower, 144 but will catch most of kernel stack overruns and exit gracefully. 145 146 Say Y if you are unsure. 147 148config JUMP_UPON_UNHANDLED_EXCEPTION 149 bool "Try to die gracefully" 150 default y 151 help 152 Now this puts kernel into infinite loop after first oops. Till 153 your kernel crashes this doesn't have any influence. 154 155 Say Y if you are unsure. 156 157config OPENRISC_ESR_EXCEPTION_BUG_CHECK 158 bool "Check for possible ESR exception bug" 159 default n 160 help 161 This option enables some checks that might expose some problems 162 in kernel. 163 164 Say N if you are unsure. 165 166endmenu 167 168endmenu 169 170menu "Executable file formats" 171 172source "fs/Kconfig.binfmt" 173 174endmenu 175 176source "net/Kconfig" 177 178source "drivers/Kconfig" 179 180source "fs/Kconfig" 181 182source "security/Kconfig" 183 184source "crypto/Kconfig" 185 186source "lib/Kconfig" 187 188menu "Kernel hacking" 189 190source "lib/Kconfig.debug" 191 192endmenu 193