[net-next-2.6.git] / arch / frv / Kconfig

#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
config FRV
	bool
	default y
	select HAVE_IDE
	select HAVE_ARCH_TRACEHOOK
	select HAVE_IRQ_WORK
	select HAVE_PERF_EVENTS

config ZONE_DMA
	bool
	default y

config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

config GENERIC_FIND_NEXT_BIT
	bool
	default y

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default n

config GENERIC_HARDIRQS
	bool
	default y

config GENERIC_HARDIRQS_NO__DO_IRQ
	bool
	default y

config TIME_LOW_RES
	bool
	default y

config QUICKLIST
	bool
	default y

config ARCH_HAS_ILOG2_U32
	bool
	default y

config ARCH_HAS_ILOG2_U64
	bool
	default y

config HZ
	int
	default 1000

mainmenu "Fujitsu FR-V Kernel Configuration"

source "init/Kconfig"

source "kernel/Kconfig.freezer"


menu "Fujitsu FR-V system setup"

config MMU
	bool "MMU support"
	help
	  This options switches on and off support for the FR-V MMU
	  (effectively switching between vmlinux and uClinux). Not all FR-V
	  CPUs support this. Currently only the FR451 has a sufficiently
	  featured MMU.

config FRV_OUTOFLINE_ATOMIC_OPS
	bool "Out-of-line the FRV atomic operations"
	default n
	help
	  Setting this option causes the FR-V atomic operations to be mostly
	  implemented out-of-line.

	  See Documentation/frv/atomic-ops.txt for more information.

config HIGHMEM
	bool "High memory support"
	depends on MMU
	default y
	help
	  If you wish to use more than 256MB of memory with your MMU based
	  system, you will need to select this option. The kernel can only see
	  the memory between 0xC0000000 and 0xD0000000 directly... everything
	  else must be kmapped.

	  The arch is, however, capable of supporting up to 3GB of SDRAM.

config HIGHPTE
	bool "Allocate page tables in highmem"
	depends on HIGHMEM
	default y
	help
	  The VM uses one page of memory for each page table.  For systems
	  with a lot of RAM, this can be wasteful of precious low memory.
	  Setting this option will put user-space page tables in high memory.

source "mm/Kconfig"

choice
	prompt "uClinux kernel load address"
	depends on !MMU
	default UCPAGE_OFFSET_C0000000
	help
	  This option sets the base address for the uClinux kernel. The kernel
	  will rearrange the SDRAM layout to start at this address, and move
	  itself to start there. It must be greater than 0, and it must be
	  sufficiently less than 0xE0000000 that the SDRAM does not intersect
	  the I/O region.

	  The base address must also be aligned such that the SDRAM controller
	  can decode it. For instance, a 512MB SDRAM bank must be 512MB aligned.

config UCPAGE_OFFSET_20000000
       bool "0x20000000"

config UCPAGE_OFFSET_40000000
       bool "0x40000000"

config UCPAGE_OFFSET_60000000
       bool "0x60000000"

config UCPAGE_OFFSET_80000000
       bool "0x80000000"

config UCPAGE_OFFSET_A0000000
       bool "0xA0000000"

config UCPAGE_OFFSET_C0000000
       bool "0xC0000000 (Recommended)"

endchoice

config PAGE_OFFSET
	hex
	default 0x20000000 if UCPAGE_OFFSET_20000000
	default 0x40000000 if UCPAGE_OFFSET_40000000
	default 0x60000000 if UCPAGE_OFFSET_60000000
	default 0x80000000 if UCPAGE_OFFSET_80000000
	default 0xA0000000 if UCPAGE_OFFSET_A0000000
	default 0xC0000000

config PROTECT_KERNEL
	bool "Protect core kernel against userspace"
	depends on !MMU
	default y
	help
	  Selecting this option causes the uClinux kernel to change the
	  permittivity of DAMPR register covering the core kernel image to
	  prevent userspace accessing the underlying memory directly.

choice
	prompt "CPU Caching mode"
	default FRV_DEFL_CACHE_WBACK
	help
	  This option determines the default caching mode for the kernel.

	  Write-Back caching mode involves the all reads and writes causing
	  the affected cacheline to be read into the cache first before being
	  operated upon. Memory is not then updated by a write until the cache
	  is filled and a cacheline needs to be displaced from the cache to
	  make room. Only at that point is it written back.

	  Write-Behind caching is similar to Write-Back caching, except that a
	  write won't fetch a cacheline into the cache if there isn't already
	  one there; it will write directly to memory instead.

	  Write-Through caching only fetches cachelines from memory on a
	  read. Writes always get written directly to memory. If the affected
	  cacheline is also in cache, it will be updated too.

	  The final option is to turn of caching entirely.

	  Note that not all CPUs support Write-Behind caching. If the CPU on
	  which the kernel is running doesn't, it'll fall back to Write-Back
	  caching.

config FRV_DEFL_CACHE_WBACK
	bool "Write-Back"

config FRV_DEFL_CACHE_WBEHIND
	bool "Write-Behind"

config FRV_DEFL_CACHE_WTHRU
	bool "Write-Through"

config FRV_DEFL_CACHE_DISABLED
	bool "Disabled"

endchoice

menu "CPU core support"

config CPU_FR401
	bool "Include FR401 core support"
	depends on !MMU
	default y
	help
	  This enables support for the FR401, FR401A and FR403 CPUs

config CPU_FR405
	bool "Include FR405 core support"
	depends on !MMU
	default y
	help
	  This enables support for the FR405 CPU

config CPU_FR451
	bool "Include FR451 core support"
	default y
	help
	  This enables support for the FR451 CPU

config CPU_FR451_COMPILE
	bool "Specifically compile for FR451 core"
	depends on CPU_FR451 && !CPU_FR401 && !CPU_FR405 && !CPU_FR551
	default y
	help
	  This causes appropriate flags to be passed to the compiler to
	  optimise for the FR451 CPU

config CPU_FR551
	bool "Include FR551 core support"
	depends on !MMU
	default y
	help
	  This enables support for the FR555 CPU

config CPU_FR551_COMPILE
	bool "Specifically compile for FR551 core"
	depends on CPU_FR551 && !CPU_FR401 && !CPU_FR405 && !CPU_FR451
	default y
	help
	  This causes appropriate flags to be passed to the compiler to
	  optimise for the FR555 CPU

config FRV_L1_CACHE_SHIFT
	int
	default "5" if CPU_FR401 || CPU_FR405 || CPU_FR451
	default "6" if CPU_FR551

endmenu

choice
	prompt "System support"
	default MB93091_VDK

config MB93091_VDK
	bool "MB93091 CPU board with or without motherboard"

config MB93093_PDK
	bool "MB93093 PDK unit"

endchoice

if MB93091_VDK
choice
	prompt "Motherboard support"
	default MB93090_MB00

config MB93090_MB00
	bool "Use the MB93090-MB00 motherboard"
	help
	  Select this option if the MB93091 CPU board is going to be used with
	  a MB93090-MB00 VDK motherboard

config MB93091_NO_MB
	bool "Use standalone"
	help
	  Select this option if the MB93091 CPU board is going to be used
	  without a motherboard

endchoice
endif

config FUJITSU_MB93493
	bool "MB93493 Multimedia chip"
	help
	  Select this option if the MB93493 multimedia chip is going to be
	  used.

choice
	prompt "GP-Relative data support"
	default GPREL_DATA_8
	help
	  This option controls what data, if any, should be placed in the GP
	  relative data sections. Using this means that the compiler can
	  generate accesses to the data using GR16-relative addressing which
	  is faster than absolute instructions and saves space (2 instructions
	  per access).

	  However, the GPREL region is limited in size because the immediate
	  value used in the load and store instructions is limited to a 12-bit
	  signed number.

	  So if the linker starts complaining that accesses to GPREL data are
	  out of range, try changing this option from the default.

	  Note that modules will always be compiled with this feature disabled
	  as the module data will not be in range of the GP base address.

config GPREL_DATA_8
	bool "Put data objects of up to 8 bytes into GP-REL"

config GPREL_DATA_4
	bool "Put data objects of up to 4 bytes into GP-REL"

config GPREL_DATA_NONE
	bool "Don't use GP-REL"

endchoice

config FRV_ONCPU_SERIAL
	bool "Use on-CPU serial ports"
	select SERIAL_8250
	default y

config PCI
	bool "Use PCI"
	depends on MB93090_MB00
	default y
	help
	  Some FR-V systems (such as the MB93090-MB00 VDK) have PCI
	  onboard. If you have one of these boards and you wish to use the PCI
	  facilities, say Y here.

config RESERVE_DMA_COHERENT
	bool "Reserve DMA coherent memory"
	depends on PCI && !MMU
	default y
	help
	  Many PCI drivers require access to uncached memory for DMA device
	  communications (such as is done with some Ethernet buffer rings). If
	  a fully featured MMU is available, this can be done through page
	  table settings, but if not, a region has to be set aside and marked
	  with a special DAMPR register.

	  Setting this option causes uClinux to set aside a portion of the
	  available memory for use in this manner. The memory will then be
	  unavailable for normal kernel use.

source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

#config MATH_EMULATION
#	bool "Math emulation support (EXPERIMENTAL)"
#	depends on EXPERIMENTAL
#	help
#	  At some point in the future, this will cause floating-point math
#	  instructions to be emulated by the kernel on machines that lack a
#	  floating-point math coprocessor.  Thrill-seekers and chronically
#	  sleep-deprived psychotic hacker types can say Y now, everyone else
#	  should probably wait a while.

menu "Power management options"

config ARCH_SUSPEND_POSSIBLE
	def_bool y
	depends on !SMP

source kernel/power/Kconfig
endmenu

endmenu


menu "Executable formats"

source "fs/Kconfig.binfmt"

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/frv/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"
Commit	Line	Data
1da177e4 LT	1	#
	2	# For a description of the syntax of this configuration file,
	3	# see Documentation/kbuild/kconfig-language.txt.
	4	#
	5	config FRV
	6	bool
	7	default y
ec7748b5	8	select HAVE_IDE
4a3b9893	9	select HAVE_ARCH_TRACEHOOK
e360adbe	10	select HAVE_IRQ_WORK
cdd6c482	11	select HAVE_PERF_EVENTS
1da177e4	12
66701b14 CL	13	config ZONE_DMA
	14	bool
	15	default y
	16
1da177e4 LT	17	config RWSEM_GENERIC_SPINLOCK
	18	bool
	19	default y
	20
	21	config RWSEM_XCHGADD_ALGORITHM
	22	bool
	23
	24	config GENERIC_FIND_NEXT_BIT
	25	bool
	26	default y
	27
1f6d7a93 AM	28	config GENERIC_HWEIGHT
	29	bool
	30	default y
	31
1da177e4 LT	32	config GENERIC_CALIBRATE_DELAY
	33	bool
	34	default n
	35
	36	config GENERIC_HARDIRQS
	37	bool
1bcbba30	38	default y
1da177e4	39
af8c65b5 DH	40	config GENERIC_HARDIRQS_NO__DO_IRQ
	41	bool
	42	default y
	43
06027bdd IM	44	config TIME_LOW_RES
	45	bool
	46	default y
	47
8defab33	48	config QUICKLIST
f0d1b0b3 DH	49	bool
	50	default y
	51
8defab33	52	config ARCH_HAS_ILOG2_U32
f0d1b0b3 DH	53	bool
	54	default y
	55
8defab33	56	config ARCH_HAS_ILOG2_U64
81819f0f CL	57	bool
	58	default y
	59
bdc80787 PA	60	config HZ
	61	int
	62	default 1000
	63
1da177e4 LT	64	mainmenu "Fujitsu FR-V Kernel Configuration"
	65
	66	source "init/Kconfig"
	67
dc52ddc0 MH	68	source "kernel/Kconfig.freezer"
dc52ddc0 MH	69
1da177e4 LT	70
	71	menu "Fujitsu FR-V system setup"
	72
	73	config MMU
	74	bool "MMU support"
	75	help
	76	This options switches on and off support for the FR-V MMU
	77	(effectively switching between vmlinux and uClinux). Not all FR-V
	78	CPUs support this. Currently only the FR451 has a sufficiently
	79	featured MMU.
	80
	81	config FRV_OUTOFLINE_ATOMIC_OPS
	82	bool "Out-of-line the FRV atomic operations"
	83	default n
	84	help
	85	Setting this option causes the FR-V atomic operations to be mostly
	86	implemented out-of-line.
	87
0868ff7a	88	See Documentation/frv/atomic-ops.txt for more information.
1da177e4 LT	89
	90	config HIGHMEM
	91	bool "High memory support"
	92	depends on MMU
	93	default y
	94	help
	95	If you wish to use more than 256MB of memory with your MMU based
	96	system, you will need to select this option. The kernel can only see
	97	the memory between 0xC0000000 and 0xD0000000 directly... everything
	98	else must be kmapped.
	99
	100	The arch is, however, capable of supporting up to 3GB of SDRAM.
	101
	102	config HIGHPTE
	103	bool "Allocate page tables in highmem"
	104	depends on HIGHMEM
	105	default y
	106	help
	107	The VM uses one page of memory for each page table. For systems
	108	with a lot of RAM, this can be wasteful of precious low memory.
	109	Setting this option will put user-space page tables in high memory.
	110
3f22ab27 DH	111	source "mm/Kconfig"
3f22ab27 DH	112
1da177e4 LT	113	choice
	114	prompt "uClinux kernel load address"
	115	depends on !MMU
	116	default UCPAGE_OFFSET_C0000000
	117	help
	118	This option sets the base address for the uClinux kernel. The kernel
	119	will rearrange the SDRAM layout to start at this address, and move
	120	itself to start there. It must be greater than 0, and it must be
	121	sufficiently less than 0xE0000000 that the SDRAM does not intersect
	122	the I/O region.
	123
	124	The base address must also be aligned such that the SDRAM controller
	125	can decode it. For instance, a 512MB SDRAM bank must be 512MB aligned.
	126
	127	config UCPAGE_OFFSET_20000000
	128	bool "0x20000000"
	129
	130	config UCPAGE_OFFSET_40000000
	131	bool "0x40000000"
	132
	133	config UCPAGE_OFFSET_60000000
	134	bool "0x60000000"
	135
	136	config UCPAGE_OFFSET_80000000
	137	bool "0x80000000"
	138
	139	config UCPAGE_OFFSET_A0000000
	140	bool "0xA0000000"
	141
	142	config UCPAGE_OFFSET_C0000000
	143	bool "0xC0000000 (Recommended)"
	144
	145	endchoice
	146
7038220a DH	147	config PAGE_OFFSET
	148	hex
	149	default 0x20000000 if UCPAGE_OFFSET_20000000
	150	default 0x40000000 if UCPAGE_OFFSET_40000000
	151	default 0x60000000 if UCPAGE_OFFSET_60000000
	152	default 0x80000000 if UCPAGE_OFFSET_80000000
	153	default 0xA0000000 if UCPAGE_OFFSET_A0000000
	154	default 0xC0000000
	155
1da177e4 LT	156	config PROTECT_KERNEL
	157	bool "Protect core kernel against userspace"
	158	depends on !MMU
	159	default y
	160	help
	161	Selecting this option causes the uClinux kernel to change the
	162	permittivity of DAMPR register covering the core kernel image to
	163	prevent userspace accessing the underlying memory directly.
	164
	165	choice
	166	prompt "CPU Caching mode"
	167	default FRV_DEFL_CACHE_WBACK
	168	help
	169	This option determines the default caching mode for the kernel.
	170
	171	Write-Back caching mode involves the all reads and writes causing
	172	the affected cacheline to be read into the cache first before being
	173	operated upon. Memory is not then updated by a write until the cache
	174	is filled and a cacheline needs to be displaced from the cache to
	175	make room. Only at that point is it written back.
	176
	177	Write-Behind caching is similar to Write-Back caching, except that a
	178	write won't fetch a cacheline into the cache if there isn't already
	179	one there; it will write directly to memory instead.
	180
	181	Write-Through caching only fetches cachelines from memory on a
	182	read. Writes always get written directly to memory. If the affected
	183	cacheline is also in cache, it will be updated too.
	184
	185	The final option is to turn of caching entirely.
	186
	187	Note that not all CPUs support Write-Behind caching. If the CPU on
	188	which the kernel is running doesn't, it'll fall back to Write-Back
	189	caching.
	190
	191	config FRV_DEFL_CACHE_WBACK
	192	bool "Write-Back"
	193
	194	config FRV_DEFL_CACHE_WBEHIND
	195	bool "Write-Behind"
	196
	197	config FRV_DEFL_CACHE_WTHRU
	198	bool "Write-Through"
	199
	200	config FRV_DEFL_CACHE_DISABLED
	201	bool "Disabled"
	202
	203	endchoice
	204
	205	menu "CPU core support"
	206
	207	config CPU_FR401
	208	bool "Include FR401 core support"
	209	depends on !MMU
	210	default y
	211	help
	212	This enables support for the FR401, FR401A and FR403 CPUs
	213
	214	config CPU_FR405
	215	bool "Include FR405 core support"
	216	depends on !MMU
	217	default y
	218	help
	219	This enables support for the FR405 CPU
220
221	config CPU_FR451
222	bool "Include FR451 core support"
223	default y
224	help
225	This enables support for the FR451 CPU
226
227	config CPU_FR451_COMPILE
228	bool "Specifically compile for FR451 core"
229	depends on CPU_FR451 && !CPU_FR401 && !CPU_FR405 && !CPU_FR551
230	default y
231	help
232	This causes appropriate flags to be passed to the compiler to
233	optimise for the FR451 CPU
234
235	config CPU_FR551
236	bool "Include FR551 core support"
237	depends on !MMU
238	default y
239	help
240	This enables support for the FR555 CPU
241
242	config CPU_FR551_COMPILE
243	bool "Specifically compile for FR551 core"
244	depends on CPU_FR551 && !CPU_FR401 && !CPU_FR405 && !CPU_FR451
245	default y
246	help
247	This causes appropriate flags to be passed to the compiler to
248	optimise for the FR555 CPU
249
250	config FRV_L1_CACHE_SHIFT
251	int
252	default "5" if CPU_FR401 \|\| CPU_FR405 \|\| CPU_FR451
253	default "6" if CPU_FR551
254
255	endmenu
256
257	choice
258	prompt "System support"
259	default MB93091_VDK
260
261	config MB93091_VDK
262	bool "MB93091 CPU board with or without motherboard"
263
264	config MB93093_PDK
265	bool "MB93093 PDK unit"
266
267	endchoice
268
269	if MB93091_VDK
270	choice
271	prompt "Motherboard support"
272	default MB93090_MB00
273
274	config MB93090_MB00
275	bool "Use the MB93090-MB00 motherboard"
276	help
277	Select this option if the MB93091 CPU board is going to be used with
278	a MB93090-MB00 VDK motherboard
279
280	config MB93091_NO_MB
281	bool "Use standalone"
282	help
283	Select this option if the MB93091 CPU board is going to be used
284	without a motherboard
285
286	endchoice
287	endif
288
1bcbba30 DH	289	config FUJITSU_MB93493
	290	bool "MB93493 Multimedia chip"
	291	help
	292	Select this option if the MB93493 multimedia chip is going to be
	293	used.
	294
1da177e4 LT	295	choice
	296	prompt "GP-Relative data support"
	297	default GPREL_DATA_8
	298	help
	299	This option controls what data, if any, should be placed in the GP
	300	relative data sections. Using this means that the compiler can
	301	generate accesses to the data using GR16-relative addressing which
	302	is faster than absolute instructions and saves space (2 instructions
	303	per access).
	304
	305	However, the GPREL region is limited in size because the immediate
	306	value used in the load and store instructions is limited to a 12-bit
	307	signed number.
	308
	309	So if the linker starts complaining that accesses to GPREL data are
	310	out of range, try changing this option from the default.
	311
	312	Note that modules will always be compiled with this feature disabled
	313	as the module data will not be in range of the GP base address.
	314
	315	config GPREL_DATA_8
	316	bool "Put data objects of up to 8 bytes into GP-REL"
	317
	318	config GPREL_DATA_4
	319	bool "Put data objects of up to 4 bytes into GP-REL"
	320
	321	config GPREL_DATA_NONE
	322	bool "Don't use GP-REL"
	323
	324	endchoice
	325
f8aec757 DH	326	config FRV_ONCPU_SERIAL
	327	bool "Use on-CPU serial ports"
	328	select SERIAL_8250
	329	default y
	330
1da177e4 LT	331	config PCI
	332	bool "Use PCI"
	333	depends on MB93090_MB00
	334	default y
	335	help
	336	Some FR-V systems (such as the MB93090-MB00 VDK) have PCI
	337	onboard. If you have one of these boards and you wish to use the PCI
	338	facilities, say Y here.
	339
1da177e4 LT	340	config RESERVE_DMA_COHERENT
	341	bool "Reserve DMA coherent memory"
	342	depends on PCI && !MMU
	343	default y
	344	help
	345	Many PCI drivers require access to uncached memory for DMA device
	346	communications (such as is done with some Ethernet buffer rings). If
	347	a fully featured MMU is available, this can be done through page
	348	table settings, but if not, a region has to be set aside and marked
	349	with a special DAMPR register.
	350
	351	Setting this option causes uClinux to set aside a portion of the
	352	available memory for use in this manner. The memory will then be
	353	unavailable for normal kernel use.
	354
	355	source "drivers/pci/Kconfig"
	356
7a758313	357	source "drivers/pcmcia/Kconfig"
1da177e4 LT	358
	359	#config MATH_EMULATION
	360	# bool "Math emulation support (EXPERIMENTAL)"
	361	# depends on EXPERIMENTAL
	362	# help
	363	# At some point in the future, this will cause floating-point math
	364	# instructions to be emulated by the kernel on machines that lack a
	365	# floating-point math coprocessor. Thrill-seekers and chronically
	366	# sleep-deprived psychotic hacker types can say Y now, everyone else
	367	# should probably wait a while.
	368
	369	menu "Power management options"
f4cb5700 JB	370
	371	config ARCH_SUSPEND_POSSIBLE
	372	def_bool y
	373	depends on !SMP
	374
1da177e4 LT	375	source kernel/power/Kconfig
	376	endmenu
	377
	378	endmenu
	379
	380
	381	menu "Executable formats"
	382
	383	source "fs/Kconfig.binfmt"
	384
	385	endmenu
	386
d5950b43 SR	387	source "net/Kconfig"
d5950b43 SR	388
1da177e4 LT	389	source "drivers/Kconfig"
	390
	391	source "fs/Kconfig"
	392
	393	source "arch/frv/Kconfig.debug"
	394
	395	source "security/Kconfig"
	396
	397	source "crypto/Kconfig"
	398
	399	source "lib/Kconfig"