| # 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_GCOV_PROFILE_ALL |
| 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 ARCH_WANT_FRAME_POINTERS if !CPU_CK610 |
| select COMMON_CLK |
| select CLKSRC_MMIO |
| 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_IOREMAP |
| 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_DEBUG_BUGVERBOSE |
| select HAVE_DYNAMIC_FTRACE |
| select HAVE_DYNAMIC_FTRACE_WITH_REGS |
| 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_KPROBES if !CPU_CK610 |
| select HAVE_KPROBES_ON_FTRACE if !CPU_CK610 |
| select HAVE_KRETPROBES if !CPU_CK610 |
| select HAVE_PERF_EVENTS |
| select HAVE_PERF_REGS |
| select HAVE_PERF_USER_STACK_DUMP |
| select HAVE_DMA_CONTIGUOUS |
| select HAVE_REGS_AND_STACK_ACCESS_API |
| select HAVE_RSEQ |
| select HAVE_STACKPROTECTOR |
| 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 |
| select GENERIC_PCI_IOMAP |
| select HAVE_PCI |
| select PCI_DOMAINS_GENERIC if PCI |
| select PCI_SYSCALL if PCI |
| select PCI_MSI if PCI |
| |
| config LOCKDEP_SUPPORT |
| def_bool y |
| |
| config ARCH_SUPPORTS_UPROBES |
| def_bool y if !CPU_CK610 |
| |
| 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 |
| |
| menuconfig HAVE_TCM |
| bool "Tightly-Coupled/Sram Memory" |
| select GENERIC_ALLOCATOR |
| help |
| The implementation are not only used by TCM (Tightly-Coupled Meory) |
| but also used by sram on SOC bus. It follow existed linux tcm |
| software interface, so that old tcm application codes could be |
| re-used directly. |
| |
| if HAVE_TCM |
| config ITCM_RAM_BASE |
| hex "ITCM ram base" |
| default 0xffffffff |
| |
| config ITCM_NR_PAGES |
| int "Page count of ITCM size: NR*4KB" |
| range 1 256 |
| default 32 |
| |
| config HAVE_DTCM |
| bool "DTCM Support" |
| |
| config DTCM_RAM_BASE |
| hex "DTCM ram base" |
| depends on HAVE_DTCM |
| default 0xffffffff |
| |
| config DTCM_NR_PAGES |
| int "Page count of DTCM size: NR*4KB" |
| depends on HAVE_DTCM |
| range 1 256 |
| default 32 |
| endif |
| |
| 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_ICACHE_INS |
| bool "CPU has Icache invalidate instructions" |
| depends on CPU_HAS_CACHEV2 |
| |
| 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 "arch/csky/Kconfig.platforms" |
| |
| source "kernel/Kconfig.hz" |
