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

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