| # 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_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" instrcutions to 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 RAM_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" |