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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 | # SPDX-License-Identifier: GPL-2.0-only config CSKY def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_DMA_PREP_COHERENT select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_QUEUED_RWLOCKS if NR_CPUS>2 select COMMON_CLK select CLKSRC_MMIO select CLKSRC_OF select CSKY_MPINTC if CPU_CK860 select CSKY_MP_TIMER if CPU_CK860 select CSKY_APB_INTC select DMA_DIRECT_REMAP select IRQ_DOMAIN select HANDLE_DOMAIN_IRQ select DW_APB_TIMER_OF select GENERIC_LIB_ASHLDI3 select GENERIC_LIB_ASHRDI3 select GENERIC_LIB_LSHRDI3 select GENERIC_LIB_MULDI3 select GENERIC_LIB_CMPDI2 select GENERIC_LIB_UCMPDI2 select GENERIC_ALLOCATOR select GENERIC_ATOMIC64 select GENERIC_CLOCKEVENTS select GENERIC_CPU_DEVICES select GENERIC_IRQ_CHIP select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_IRQ_MULTI_HANDLER select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD select GX6605S_TIMER if CPU_CK610 select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_AUDITSYSCALL select HAVE_COPY_THREAD_TLS select HAVE_DYNAMIC_FTRACE select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FTRACE_MCOUNT_RECORD select HAVE_KERNEL_GZIP select HAVE_KERNEL_LZO select HAVE_KERNEL_LZMA select HAVE_PERF_EVENTS select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP select HAVE_DMA_API_DEBUG select HAVE_DMA_CONTIGUOUS select HAVE_SYSCALL_TRACEPOINTS select MAY_HAVE_SPARSE_IRQ select MODULES_USE_ELF_RELA if MODULES select OF select OF_EARLY_FLATTREE select PERF_USE_VMALLOC if CPU_CK610 select RTC_LIB select TIMER_OF select USB_ARCH_HAS_EHCI select USB_ARCH_HAS_OHCI config CPU_HAS_CACHEV2 bool config CPU_HAS_FPUV2 bool config CPU_HAS_HILO bool config CPU_HAS_TLBI bool config CPU_HAS_LDSTEX bool help For SMP, CPU needs "ldex&stex" instructions for atomic operations. config CPU_NEED_TLBSYNC bool config CPU_NEED_SOFTALIGN bool config CPU_NO_USER_BKPT bool help For abiv2 we couldn't use "trap 1" as user space bkpt in gdbserver, because abiv2 is 16/32bit instruction set and "trap 1" is 32bit. So we need a 16bit instruction as user space bkpt, and it will cause an illegal instruction exception. In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not. config GENERIC_CALIBRATE_DELAY def_bool y config GENERIC_CSUM def_bool y config GENERIC_HWEIGHT def_bool y config MMU def_bool y config STACKTRACE_SUPPORT def_bool y config TIME_LOW_RES def_bool y config TRACE_IRQFLAGS_SUPPORT def_bool y config CPU_TLB_SIZE int default "128" if (CPU_CK610 || CPU_CK807 || CPU_CK810) default "1024" if (CPU_CK860) config CPU_ASID_BITS int default "8" if (CPU_CK610 || CPU_CK807 || CPU_CK810) default "12" if (CPU_CK860) config L1_CACHE_SHIFT int default "4" if (CPU_CK610) default "5" if (CPU_CK807 || CPU_CK810) default "6" if (CPU_CK860) menu "Processor type and features" choice prompt "CPU MODEL" default CPU_CK807 config CPU_CK610 bool "CSKY CPU ck610" select CPU_NEED_TLBSYNC select CPU_NEED_SOFTALIGN select CPU_NO_USER_BKPT config CPU_CK810 bool "CSKY CPU ck810" select CPU_HAS_HILO select CPU_NEED_TLBSYNC config CPU_CK807 bool "CSKY CPU ck807" select CPU_HAS_HILO config CPU_CK860 bool "CSKY CPU ck860" select CPU_HAS_TLBI select CPU_HAS_CACHEV2 select CPU_HAS_LDSTEX select CPU_HAS_FPUV2 endchoice choice prompt "C-SKY PMU type" depends on PERF_EVENTS depends on CPU_CK807 || CPU_CK810 || CPU_CK860 config CPU_PMU_NONE bool "None" config CSKY_PMU_V1 bool "Performance Monitoring Unit Ver.1" endchoice choice prompt "Power Manager Instruction (wait/doze/stop)" default CPU_PM_NONE config CPU_PM_NONE bool "None" config CPU_PM_WAIT bool "wait" config CPU_PM_DOZE bool "doze" config CPU_PM_STOP bool "stop" endchoice config CPU_HAS_VDSP bool "CPU has VDSP coprocessor" depends on CPU_HAS_FPU && CPU_HAS_FPUV2 config CPU_HAS_FPU bool "CPU has FPU coprocessor" depends on CPU_CK807 || CPU_CK810 || CPU_CK860 config CPU_HAS_TEE bool "CPU has Trusted Execution Environment" depends on CPU_CK810 config SMP bool "Symmetric Multi-Processing (SMP) support for C-SKY" depends on CPU_CK860 default n config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 depends on SMP default "2" config HIGHMEM bool "High Memory Support" depends on !CPU_CK610 default y config FORCE_MAX_ZONEORDER int "Maximum zone order" default "11" config DRAM_BASE hex "DRAM start addr (the same with memory-section in dts)" default 0x0 config HOTPLUG_CPU bool "Support for hot-pluggable CPUs" select GENERIC_IRQ_MIGRATION depends on SMP help Say Y here to allow turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu/cpu1/hotplug/target. Say N if you want to disable CPU hotplug. endmenu source "kernel/Kconfig.hz" |