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

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

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