[linux-2.6-block.git] / arch / csky / Kconfig

# 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"
Commit	Line	Data
ec8f24b7	1	# SPDX-License-Identifier: GPL-2.0-only
c32e64e8 GR	2	config CSKY
c32e64e8 GR	3	def_bool y
942fa985	4	select ARCH_32BIT_OFF_T
13bf5ced	5	select ARCH_HAS_DMA_PREP_COHERENT
c32e64e8 GR	6	select ARCH_HAS_SYNC_DMA_FOR_CPU
	7	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
	8	select ARCH_USE_BUILTIN_BSWAP
	9	select ARCH_USE_QUEUED_RWLOCKS if NR_CPUS>2
	10	select COMMON_CLK
	11	select CLKSRC_MMIO
	12	select CLKSRC_OF
1994cc49 GR	13	select CSKY_MPINTC if CPU_CK860
	14	select CSKY_MP_TIMER if CPU_CK860
	15	select CSKY_APB_INTC
f04b951f	16	select DMA_DIRECT_REMAP
c32e64e8 GR	17	select IRQ_DOMAIN
	18	select HANDLE_DOMAIN_IRQ
	19	select DW_APB_TIMER_OF
	20	select GENERIC_LIB_ASHLDI3
	21	select GENERIC_LIB_ASHRDI3
	22	select GENERIC_LIB_LSHRDI3
	23	select GENERIC_LIB_MULDI3
	24	select GENERIC_LIB_CMPDI2
	25	select GENERIC_LIB_UCMPDI2
	26	select GENERIC_ALLOCATOR
	27	select GENERIC_ATOMIC64
	28	select GENERIC_CLOCKEVENTS
	29	select GENERIC_CPU_DEVICES
	30	select GENERIC_IRQ_CHIP
	31	select GENERIC_IRQ_PROBE
	32	select GENERIC_IRQ_SHOW
	33	select GENERIC_IRQ_MULTI_HANDLER
	34	select GENERIC_SCHED_CLOCK
	35	select GENERIC_SMP_IDLE_THREAD
1994cc49	36	select GX6605S_TIMER if CPU_CK610
c32e64e8	37	select HAVE_ARCH_TRACEHOOK
2f7932b0	38	select HAVE_ARCH_AUDITSYSCALL
28bb030f	39	select HAVE_DYNAMIC_FTRACE
230c77a5	40	select HAVE_FUNCTION_TRACER
d7950be1	41	select HAVE_FUNCTION_GRAPH_TRACER
28bb030f	42	select HAVE_FTRACE_MCOUNT_RECORD
c32e64e8 GR	43	select HAVE_KERNEL_GZIP
	44	select HAVE_KERNEL_LZO
	45	select HAVE_KERNEL_LZMA
f50fd2d8	46	select HAVE_PERF_EVENTS
daac95e7 MH	47	select HAVE_PERF_REGS
daac95e7 MH	48	select HAVE_PERF_USER_STACK_DUMP
c32e64e8 GR	49	select HAVE_DMA_API_DEBUG
c32e64e8 GR	50	select HAVE_DMA_CONTIGUOUS
2f7932b0	51	select HAVE_SYSCALL_TRACEPOINTS
c32e64e8 GR	52	select MAY_HAVE_SPARSE_IRQ
c32e64e8 GR	53	select MODULES_USE_ELF_RELA if MODULES
c32e64e8 GR	54	select OF
c32e64e8 GR	55	select OF_EARLY_FLATTREE
f50fd2d8	56	select PERF_USE_VMALLOC if CPU_CK610
c32e64e8 GR	57	select RTC_LIB
	58	select TIMER_OF
	59	select USB_ARCH_HAS_EHCI
	60	select USB_ARCH_HAS_OHCI
	61
	62	config CPU_HAS_CACHEV2
	63	bool
	64
	65	config CPU_HAS_FPUV2
	66	bool
	67
	68	config CPU_HAS_HILO
	69	bool
	70
	71	config CPU_HAS_TLBI
	72	bool
	73
	74	config CPU_HAS_LDSTEX
	75	bool
	76	help
	77	For SMP, CPU needs "ldex&stex" instrcutions to atomic operations.
	78
	79	config CPU_NEED_TLBSYNC
	80	bool
	81
	82	config CPU_NEED_SOFTALIGN
	83	bool
	84
	85	config CPU_NO_USER_BKPT
	86	bool
	87	help
	88	For abiv2 we couldn't use "trap 1" as user space bkpt in gdbserver, because
	89	abiv2 is 16/32bit instruction set and "trap 1" is 32bit.
	90	So we need a 16bit instruction as user space bkpt, and it will cause an illegal
	91	instruction exception.
	92	In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not.
	93
	94	config GENERIC_CALIBRATE_DELAY
	95	def_bool y
	96
	97	config GENERIC_CSUM
	98	def_bool y
	99
	100	config GENERIC_HWEIGHT
	101	def_bool y
	102
	103	config MMU
	104	def_bool y
	105
0ea2dc7c GR	106	config STACKTRACE_SUPPORT
	107	def_bool y
	108
c32e64e8 GR	109	config TIME_LOW_RES
	110	def_bool y
	111
	112	config TRACE_IRQFLAGS_SUPPORT
	113	def_bool y
	114
	115	config CPU_TLB_SIZE
	116	int
	117	default "128" if (CPU_CK610 \|\| CPU_CK807 \|\| CPU_CK810)
	118	default "1024" if (CPU_CK860)
	119
	120	config CPU_ASID_BITS
	121	int
	122	default "8" if (CPU_CK610 \|\| CPU_CK807 \|\| CPU_CK810)
	123	default "12" if (CPU_CK860)
	124
	125	config L1_CACHE_SHIFT
	126	int
	127	default "4" if (CPU_CK610)
	128	default "5" if (CPU_CK807 \|\| CPU_CK810)
	129	default "6" if (CPU_CK860)
	130
	131	menu "Processor type and features"
	132
	133	choice
	134	prompt "CPU MODEL"
	135	default CPU_CK807
	136
	137	config CPU_CK610
	138	bool "CSKY CPU ck610"
	139	select CPU_NEED_TLBSYNC
	140	select CPU_NEED_SOFTALIGN
	141	select CPU_NO_USER_BKPT
	142
	143	config CPU_CK810
	144	bool "CSKY CPU ck810"
	145	select CPU_HAS_HILO
	146	select CPU_NEED_TLBSYNC
	147
	148	config CPU_CK807
	149	bool "CSKY CPU ck807"
	150	select CPU_HAS_HILO
	151
	152	config CPU_CK860
	153	bool "CSKY CPU ck860"
	154	select CPU_HAS_TLBI
	155	select CPU_HAS_CACHEV2
	156	select CPU_HAS_LDSTEX
	157	select CPU_HAS_FPUV2
	158	endchoice
	159
f50fd2d8 GR	160	choice
	161	prompt "C-SKY PMU type"
	162	depends on PERF_EVENTS
	163	depends on CPU_CK807 \|\| CPU_CK810 \|\| CPU_CK860
	164
	165	config CPU_PMU_NONE
	166	bool "None"
	167
	168	config CSKY_PMU_V1
	169	bool "Performance Monitoring Unit Ver.1"
	170
	171	endchoice
	172
c32e64e8 GR	173	choice
	174	prompt "Power Manager Instruction (wait/doze/stop)"
	175	default CPU_PM_NONE
	176
	177	config CPU_PM_NONE
	178	bool "None"
	179
	180	config CPU_PM_WAIT
	181	bool "wait"
	182
	183	config CPU_PM_DOZE
	184	bool "doze"
	185
	186	config CPU_PM_STOP
	187	bool "stop"
	188	endchoice
	189
	190	config CPU_HAS_VDSP
	191	bool "CPU has VDSP coprocessor"
	192	depends on CPU_HAS_FPU && CPU_HAS_FPUV2
	193
	194	config CPU_HAS_FPU
	195	bool "CPU has FPU coprocessor"
	196	depends on CPU_CK807 \|\| CPU_CK810 \|\| CPU_CK860
	197
	198	config CPU_HAS_TEE
	199	bool "CPU has Trusted Execution Environment"
	200	depends on CPU_CK810
	201
	202	config SMP
	203	bool "Symmetric Multi-Processing (SMP) support for C-SKY"
	204	depends on CPU_CK860
	205	default n
	206
	207	config NR_CPUS
	208	int "Maximum number of CPUs (2-32)"
	209	range 2 32
	210	depends on SMP
	211	default "2"
	212
	213	config HIGHMEM
	214	bool "High Memory Support"
	215	depends on !CPU_CK610
	216	default y
	217
	218	config FORCE_MAX_ZONEORDER
	219	int "Maximum zone order"
	220	default "11"
	221
	222	config RAM_BASE
	223	hex "DRAM start addr (the same with memory-section in dts)"
	224	default 0x0
	225
859e5f45 GR	226	config HOTPLUG_CPU
	227	bool "Support for hot-pluggable CPUs"
	228	select GENERIC_IRQ_MIGRATION
	229	depends on SMP
	230	help
	231	Say Y here to allow turning CPUs off and on. CPUs can be
	232	controlled through /sys/devices/system/cpu/cpu1/hotplug/target.
	233
	234	Say N if you want to disable CPU hotplug.
c32e64e8 GR	235	endmenu
	236
	237	source "kernel/Kconfig.hz"