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 HANDLE_DOMAIN_IRQ 12 select HAVE_MEMBLOCK 13 select GPIOLIB 14 select HAVE_ARCH_TRACEHOOK 15 select SPARSE_IRQ 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 HAVE_UID16 22 select GENERIC_ATOMIC64 23 select GENERIC_CLOCKEVENTS 24 select GENERIC_STRNCPY_FROM_USER 25 select GENERIC_STRNLEN_USER 26 select MODULES_USE_ELF_RELA 27 select HAVE_DEBUG_STACKOVERFLOW 28 select OR1K_PIC 29 select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1 30 select NO_BOOTMEM 31 32config CPU_BIG_ENDIAN 33 def_bool y 34 35config MMU 36 def_bool y 37 38config RWSEM_GENERIC_SPINLOCK 39 def_bool y 40 41config RWSEM_XCHGADD_ALGORITHM 42 def_bool n 43 44config GENERIC_HWEIGHT 45 def_bool y 46 47config NO_IOPORT_MAP 48 def_bool y 49 50config TRACE_IRQFLAGS_SUPPORT 51 def_bool y 52 53# For now, use generic checksum functions 54#These can be reimplemented in assembly later if so inclined 55config GENERIC_CSUM 56 def_bool y 57 58source "init/Kconfig" 59 60source "kernel/Kconfig.freezer" 61 62menu "Processor type and features" 63 64choice 65 prompt "Subarchitecture" 66 default OR1K_1200 67 68config OR1K_1200 69 bool "OR1200" 70 help 71 Generic OpenRISC 1200 architecture 72 73endchoice 74 75config OPENRISC_BUILTIN_DTB 76 string "Builtin DTB" 77 default "" 78 79menu "Class II Instructions" 80 81config OPENRISC_HAVE_INST_FF1 82 bool "Have instruction l.ff1" 83 default y 84 help 85 Select this if your implementation has the Class II instruction l.ff1 86 87config OPENRISC_HAVE_INST_FL1 88 bool "Have instruction l.fl1" 89 default y 90 help 91 Select this if your implementation has the Class II instruction l.fl1 92 93config OPENRISC_HAVE_INST_MUL 94 bool "Have instruction l.mul for hardware multiply" 95 default y 96 help 97 Select this if your implementation has a hardware multiply instruction 98 99config OPENRISC_HAVE_INST_DIV 100 bool "Have instruction l.div for hardware divide" 101 default y 102 help 103 Select this if your implementation has a hardware divide instruction 104endmenu 105 106config NR_CPUS 107 int 108 default "1" 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 JUMP_UPON_UNHANDLED_EXCEPTION 139 bool "Try to die gracefully" 140 default y 141 help 142 Now this puts kernel into infinite loop after first oops. Till 143 your kernel crashes this doesn't have any influence. 144 145 Say Y if you are unsure. 146 147config OPENRISC_ESR_EXCEPTION_BUG_CHECK 148 bool "Check for possible ESR exception bug" 149 default n 150 help 151 This option enables some checks that might expose some problems 152 in kernel. 153 154 Say N if you are unsure. 155 156endmenu 157 158endmenu 159 160menu "Executable file formats" 161 162source "fs/Kconfig.binfmt" 163 164endmenu 165 166source "net/Kconfig" 167 168source "drivers/Kconfig" 169 170source "fs/Kconfig" 171 172source "security/Kconfig" 173 174source "crypto/Kconfig" 175 176source "lib/Kconfig" 177 178menu "Kernel hacking" 179 180source "lib/Kconfig.debug" 181 182endmenu 183