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 20config MMU 21 def_bool y 22 23config SYMBOL_PREFIX 24 string 25 default "" 26 27config HAVE_DMA_ATTRS 28 def_bool y 29 30config UID16 31 def_bool y 32 33config RWSEM_GENERIC_SPINLOCK 34 def_bool y 35 36config RWSEM_XCHGADD_ALGORITHM 37 def_bool n 38 39config GENERIC_HWEIGHT 40 def_bool y 41 42config NO_IOPORT 43 def_bool y 44 45config GENERIC_GPIO 46 def_bool y 47 48config GENERIC_CLOCKEVENTS 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/time/Kconfig" 111source kernel/Kconfig.hz 112source kernel/Kconfig.preempt 113source "mm/Kconfig" 114 115config OPENRISC_NO_SPR_SR_DSX 116 bool "use SPR_SR_DSX software emulation" if OR1K_1200 117 default y 118 help 119 SPR_SR_DSX bit is status register bit indicating whether 120 the last exception has happened in delay slot. 121 122 OpenRISC architecture makes it optional to have it implemented 123 in hardware and the OR1200 does not have it. 124 125 Say N here if you know that your OpenRISC processor has 126 SPR_SR_DSX bit implemented. Say Y if you are unsure. 127 128config CMDLINE 129 string "Default kernel command string" 130 default "" 131 help 132 On some architectures there is currently no way for the boot loader 133 to pass arguments to the kernel. For these architectures, you should 134 supply some command-line options at build time by entering them 135 here. 136 137menu "Debugging options" 138 139config DEBUG_STACKOVERFLOW 140 bool "Check for kernel stack overflow" 141 default y 142 help 143 Make extra checks for space avaliable on stack in some 144 critical functions. This will cause kernel to run a bit slower, 145 but will catch most of kernel stack overruns and exit gracefuly. 146 147 Say Y if you are unsure. 148 149config JUMP_UPON_UNHANDLED_EXCEPTION 150 bool "Try to die gracefully" 151 default y 152 help 153 Now this puts kernel into infinite loop after first oops. Till 154 your kernel crashes this doesn't have any influence. 155 156 Say Y if you are unsure. 157 158config OPENRISC_ESR_EXCEPTION_BUG_CHECK 159 bool "Check for possible ESR exception bug" 160 default n 161 help 162 This option enables some checks that might expose some problems 163 in kernel. 164 165 Say N if you are unsure. 166 167endmenu 168 169endmenu 170 171menu "Executable file formats" 172 173source "fs/Kconfig.binfmt" 174 175endmenu 176 177source "net/Kconfig" 178 179source "drivers/Kconfig" 180 181source "fs/Kconfig" 182 183source "security/Kconfig" 184 185source "crypto/Kconfig" 186 187source "lib/Kconfig" 188 189menu "Kernel hacking" 190 191source "lib/Kconfig.debug" 192 193endmenu 194