diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/csky/Kconfig | 365 | ||||
| -rw-r--r-- | arch/csky/Kconfig.debug | 2 | ||||
| -rw-r--r-- | arch/csky/Kconfig.platforms | 9 |
3 files changed, 376 insertions, 0 deletions
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig new file mode 100644 index 000000000..742009123 --- /dev/null +++ b/arch/csky/Kconfig @@ -0,0 +1,365 @@ +# 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 + select ARCH_USE_QUEUED_SPINLOCKS + select ARCH_INLINE_READ_LOCK if !PREEMPTION + select ARCH_INLINE_READ_LOCK_BH if !PREEMPTION + select ARCH_INLINE_READ_LOCK_IRQ if !PREEMPTION + select ARCH_INLINE_READ_LOCK_IRQSAVE if !PREEMPTION + select ARCH_INLINE_READ_UNLOCK if !PREEMPTION + select ARCH_INLINE_READ_UNLOCK_BH if !PREEMPTION + select ARCH_INLINE_READ_UNLOCK_IRQ if !PREEMPTION + select ARCH_INLINE_READ_UNLOCK_IRQRESTORE if !PREEMPTION + select ARCH_INLINE_WRITE_LOCK if !PREEMPTION + select ARCH_INLINE_WRITE_LOCK_BH if !PREEMPTION + select ARCH_INLINE_WRITE_LOCK_IRQ if !PREEMPTION + select ARCH_INLINE_WRITE_LOCK_IRQSAVE if !PREEMPTION + select ARCH_INLINE_WRITE_UNLOCK if !PREEMPTION + select ARCH_INLINE_WRITE_UNLOCK_BH if !PREEMPTION + select ARCH_INLINE_WRITE_UNLOCK_IRQ if !PREEMPTION + select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE if !PREEMPTION + select ARCH_INLINE_SPIN_TRYLOCK if !PREEMPTION + select ARCH_INLINE_SPIN_TRYLOCK_BH if !PREEMPTION + select ARCH_INLINE_SPIN_LOCK if !PREEMPTION + select ARCH_INLINE_SPIN_LOCK_BH if !PREEMPTION + select ARCH_INLINE_SPIN_LOCK_IRQ if !PREEMPTION + select ARCH_INLINE_SPIN_LOCK_IRQSAVE if !PREEMPTION + select ARCH_INLINE_SPIN_UNLOCK if !PREEMPTION + select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPTION + select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPTION + select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPTION + select ARCH_WANT_FRAME_POINTERS if !CPU_CK610 && $(cc-option,-mbacktrace) + select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT + 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 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_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 GENERIC_TIME_VSYSCALL + select GENERIC_VDSO_32 + select GENERIC_GETTIMEOFDAY + select GX6605S_TIMER if CPU_CK610 + select HAVE_ARCH_TRACEHOOK + select HAVE_ARCH_AUDITSYSCALL + select HAVE_ARCH_JUMP_LABEL if !CPU_CK610 + select HAVE_ARCH_JUMP_LABEL_RELATIVE + select HAVE_ARCH_MMAP_RND_BITS + select HAVE_ARCH_SECCOMP_FILTER + select HAVE_CONTEXT_TRACKING_USER + select HAVE_VIRT_CPU_ACCOUNTING_GEN + select HAVE_DEBUG_BUGVERBOSE + select HAVE_DEBUG_KMEMLEAK + select HAVE_DYNAMIC_FTRACE + select HAVE_DYNAMIC_FTRACE_WITH_REGS + select HAVE_GENERIC_VDSO + select HAVE_FUNCTION_TRACER + select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_FUNCTION_ERROR_INJECTION + 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 LOCK_MM_AND_FIND_VMA + 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 GENERIC_PCI_IOMAP + select HAVE_PCI + select PCI_DOMAINS_GENERIC if PCI + select PCI_SYSCALL if PCI + select PCI_MSI if PCI + select TRACE_IRQFLAGS_SUPPORT + +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 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) + +config ARCH_MMAP_RND_BITS_MIN + default 8 + +# max bits determined by the following formula: +# VA_BITS - PAGE_SHIFT - 3 +config ARCH_MMAP_RND_BITS_MAX + default 17 + +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 "PAGE OFFSET" + default PAGE_OFFSET_80000000 + +config PAGE_OFFSET_80000000 + bool "PAGE OFFSET 2G (user:kernel = 2:2)" + +config PAGE_OFFSET_A0000000 + bool "PAGE OFFSET 2.5G (user:kernel = 2.5:1.5)" +endchoice + +config PAGE_OFFSET + hex + default 0x80000000 if PAGE_OFFSET_80000000 + default 0xa0000000 if PAGE_OFFSET_A0000000 +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" + depends on !COMPILE_TEST + 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 "4" + +config HIGHMEM + bool "High Memory Support" + depends on !CPU_CK610 + select KMAP_LOCAL + default y + +config ARCH_FORCE_MAX_ORDER + 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. + +config HAVE_EFFICIENT_UNALIGNED_STRING_OPS + bool "Enable EFFICIENT_UNALIGNED_STRING_OPS for abiv2" + depends on CPU_CK807 || CPU_CK810 || CPU_CK860 + help + Say Y here to enable EFFICIENT_UNALIGNED_STRING_OPS. Some CPU models could + deal with unaligned access by hardware. + +endmenu + +source "arch/csky/Kconfig.platforms" + +source "kernel/Kconfig.hz" diff --git a/arch/csky/Kconfig.debug b/arch/csky/Kconfig.debug new file mode 100644 index 000000000..295942fe3 --- /dev/null +++ b/arch/csky/Kconfig.debug @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +# dummy file, do not delete diff --git a/arch/csky/Kconfig.platforms b/arch/csky/Kconfig.platforms new file mode 100644 index 000000000..639e17f4e --- /dev/null +++ b/arch/csky/Kconfig.platforms @@ -0,0 +1,9 @@ +menu "Platform drivers selection" + +config ARCH_CSKY_DW_APB_ICTL + bool "Select dw-apb interrupt controller" + select DW_APB_ICTL + default y + help + This enables support for snps dw-apb-ictl +endmenu |