[deliverable/linux.git] / arch / frv / Kconfig

config FRV
	bool
	default y
	select HAVE_IDE
	select HAVE_ARCH_TRACEHOOK
	select HAVE_IRQ_WORK
	select HAVE_PERF_EVENTS
	select HAVE_GENERIC_HARDIRQS
	select GENERIC_IRQ_SHOW
	select ARCH_HAVE_NMI_SAFE_CMPXCHG

config ZONE_DMA
	bool
	default y

config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default n

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
	select GENERIC_PCI_IOMAP
	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"

menu "Power management options"

config ARCH_SUSPEND_POSSIBLE
	def_bool y

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
f39b02d6	8	select HAVE_GENERIC_HARDIRQS
3062aa50	9	select GENERIC_IRQ_SHOW
df013ffb	10	select ARCH_HAVE_NMI_SAFE_CMPXCHG
1da177e4	11
66701b14 CL	12	config ZONE_DMA
	13	bool
	14	default y
	15
1da177e4 LT	16	config RWSEM_GENERIC_SPINLOCK
	17	bool
	18	default y
	19
	20	config RWSEM_XCHGADD_ALGORITHM
	21	bool
	22
1f6d7a93 AM	23	config GENERIC_HWEIGHT
	24	bool
	25	default y
	26
1da177e4 LT	27	config GENERIC_CALIBRATE_DELAY
	28	bool
	29	default n
	30
06027bdd IM	31	config TIME_LOW_RES
	32	bool
	33	default y
	34
8defab33	35	config QUICKLIST
f0d1b0b3 DH	36	bool
	37	default y
	38
8defab33	39	config ARCH_HAS_ILOG2_U32
f0d1b0b3 DH	40	bool
	41	default y
	42
8defab33	43	config ARCH_HAS_ILOG2_U64
81819f0f CL	44	bool
	45	default y
	46
bdc80787 PA	47	config HZ
	48	int
	49	default 1000
	50
1da177e4 LT	51	source "init/Kconfig"
1da177e4 LT	52
dc52ddc0 MH	53	source "kernel/Kconfig.freezer"
dc52ddc0 MH	54
1da177e4 LT	55
	56	menu "Fujitsu FR-V system setup"
	57
	58	config MMU
	59	bool "MMU support"
	60	help
	61	This options switches on and off support for the FR-V MMU
	62	(effectively switching between vmlinux and uClinux). Not all FR-V
	63	CPUs support this. Currently only the FR451 has a sufficiently
	64	featured MMU.
	65
	66	config FRV_OUTOFLINE_ATOMIC_OPS
	67	bool "Out-of-line the FRV atomic operations"
	68	default n
	69	help
	70	Setting this option causes the FR-V atomic operations to be mostly
	71	implemented out-of-line.
	72
0868ff7a	73	See Documentation/frv/atomic-ops.txt for more information.
1da177e4 LT	74
	75	config HIGHMEM
	76	bool "High memory support"
	77	depends on MMU
	78	default y
	79	help
	80	If you wish to use more than 256MB of memory with your MMU based
	81	system, you will need to select this option. The kernel can only see
	82	the memory between 0xC0000000 and 0xD0000000 directly... everything
	83	else must be kmapped.
	84
	85	The arch is, however, capable of supporting up to 3GB of SDRAM.
	86
	87	config HIGHPTE
	88	bool "Allocate page tables in highmem"
	89	depends on HIGHMEM
	90	default y
	91	help
	92	The VM uses one page of memory for each page table. For systems
	93	with a lot of RAM, this can be wasteful of precious low memory.
	94	Setting this option will put user-space page tables in high memory.
	95
3f22ab27 DH	96	source "mm/Kconfig"
3f22ab27 DH	97
1da177e4 LT	98	choice
	99	prompt "uClinux kernel load address"
	100	depends on !MMU
	101	default UCPAGE_OFFSET_C0000000
	102	help
	103	This option sets the base address for the uClinux kernel. The kernel
	104	will rearrange the SDRAM layout to start at this address, and move
	105	itself to start there. It must be greater than 0, and it must be
	106	sufficiently less than 0xE0000000 that the SDRAM does not intersect
	107	the I/O region.
	108
	109	The base address must also be aligned such that the SDRAM controller
	110	can decode it. For instance, a 512MB SDRAM bank must be 512MB aligned.
	111
	112	config UCPAGE_OFFSET_20000000
	113	bool "0x20000000"
	114
	115	config UCPAGE_OFFSET_40000000
	116	bool "0x40000000"
	117
	118	config UCPAGE_OFFSET_60000000
	119	bool "0x60000000"
	120
	121	config UCPAGE_OFFSET_80000000
	122	bool "0x80000000"
	123
	124	config UCPAGE_OFFSET_A0000000
	125	bool "0xA0000000"
	126
	127	config UCPAGE_OFFSET_C0000000
	128	bool "0xC0000000 (Recommended)"
	129
	130	endchoice
	131
7038220a DH	132	config PAGE_OFFSET
	133	hex
	134	default 0x20000000 if UCPAGE_OFFSET_20000000
	135	default 0x40000000 if UCPAGE_OFFSET_40000000
	136	default 0x60000000 if UCPAGE_OFFSET_60000000
	137	default 0x80000000 if UCPAGE_OFFSET_80000000
	138	default 0xA0000000 if UCPAGE_OFFSET_A0000000
	139	default 0xC0000000
	140
1da177e4 LT	141	config PROTECT_KERNEL
	142	bool "Protect core kernel against userspace"
	143	depends on !MMU
	144	default y
	145	help
	146	Selecting this option causes the uClinux kernel to change the
	147	permittivity of DAMPR register covering the core kernel image to
	148	prevent userspace accessing the underlying memory directly.
	149
	150	choice
	151	prompt "CPU Caching mode"
	152	default FRV_DEFL_CACHE_WBACK
	153	help
	154	This option determines the default caching mode for the kernel.
	155
	156	Write-Back caching mode involves the all reads and writes causing
	157	the affected cacheline to be read into the cache first before being
	158	operated upon. Memory is not then updated by a write until the cache
	159	is filled and a cacheline needs to be displaced from the cache to
	160	make room. Only at that point is it written back.
	161
	162	Write-Behind caching is similar to Write-Back caching, except that a
	163	write won't fetch a cacheline into the cache if there isn't already
	164	one there; it will write directly to memory instead.
	165
	166	Write-Through caching only fetches cachelines from memory on a
	167	read. Writes always get written directly to memory. If the affected
	168	cacheline is also in cache, it will be updated too.
	169
	170	The final option is to turn of caching entirely.
	171
	172	Note that not all CPUs support Write-Behind caching. If the CPU on
	173	which the kernel is running doesn't, it'll fall back to Write-Back
	174	caching.
	175
	176	config FRV_DEFL_CACHE_WBACK
	177	bool "Write-Back"
	178
	179	config FRV_DEFL_CACHE_WBEHIND
	180	bool "Write-Behind"
	181
	182	config FRV_DEFL_CACHE_WTHRU
	183	bool "Write-Through"
	184
	185	config FRV_DEFL_CACHE_DISABLED
	186	bool "Disabled"
	187
	188	endchoice
	189
	190	menu "CPU core support"
	191
	192	config CPU_FR401
	193	bool "Include FR401 core support"
	194	depends on !MMU
	195	default y
	196	help
	197	This enables support for the FR401, FR401A and FR403 CPUs
	198
	199	config CPU_FR405
	200	bool "Include FR405 core support"
	201	depends on !MMU
	202	default y
	203	help
	204	This enables support for the FR405 CPU
205
206	config CPU_FR451
207	bool "Include FR451 core support"
208	default y
209	help
210	This enables support for the FR451 CPU
211
212	config CPU_FR451_COMPILE
213	bool "Specifically compile for FR451 core"
214	depends on CPU_FR451 && !CPU_FR401 && !CPU_FR405 && !CPU_FR551
215	default y
216	help
217	This causes appropriate flags to be passed to the compiler to
218	optimise for the FR451 CPU
219
220	config CPU_FR551
221	bool "Include FR551 core support"
222	depends on !MMU
223	default y
224	help
225	This enables support for the FR555 CPU
226
227	config CPU_FR551_COMPILE
228	bool "Specifically compile for FR551 core"
229	depends on CPU_FR551 && !CPU_FR401 && !CPU_FR405 && !CPU_FR451
230	default y
231	help
232	This causes appropriate flags to be passed to the compiler to
233	optimise for the FR555 CPU
234
235	config FRV_L1_CACHE_SHIFT
236	int
237	default "5" if CPU_FR401 \|\| CPU_FR405 \|\| CPU_FR451
238	default "6" if CPU_FR551
239
240	endmenu
241
242	choice
243	prompt "System support"
244	default MB93091_VDK
245
246	config MB93091_VDK
247	bool "MB93091 CPU board with or without motherboard"
248
249	config MB93093_PDK
250	bool "MB93093 PDK unit"
251
252	endchoice
253
254	if MB93091_VDK
255	choice
256	prompt "Motherboard support"
257	default MB93090_MB00
258
259	config MB93090_MB00
260	bool "Use the MB93090-MB00 motherboard"
261	help
262	Select this option if the MB93091 CPU board is going to be used with
263	a MB93090-MB00 VDK motherboard
264
265	config MB93091_NO_MB
266	bool "Use standalone"
267	help
268	Select this option if the MB93091 CPU board is going to be used
269	without a motherboard
270
271	endchoice
272	endif
273
1bcbba30 DH	274	config FUJITSU_MB93493
	275	bool "MB93493 Multimedia chip"
	276	help
	277	Select this option if the MB93493 multimedia chip is going to be
	278	used.
	279
1da177e4 LT	280	choice
	281	prompt "GP-Relative data support"
	282	default GPREL_DATA_8
	283	help
	284	This option controls what data, if any, should be placed in the GP
	285	relative data sections. Using this means that the compiler can
	286	generate accesses to the data using GR16-relative addressing which
	287	is faster than absolute instructions and saves space (2 instructions
	288	per access).
	289
	290	However, the GPREL region is limited in size because the immediate
	291	value used in the load and store instructions is limited to a 12-bit
	292	signed number.
	293
	294	So if the linker starts complaining that accesses to GPREL data are
	295	out of range, try changing this option from the default.
	296
	297	Note that modules will always be compiled with this feature disabled
	298	as the module data will not be in range of the GP base address.
	299
	300	config GPREL_DATA_8
	301	bool "Put data objects of up to 8 bytes into GP-REL"
	302
	303	config GPREL_DATA_4
	304	bool "Put data objects of up to 4 bytes into GP-REL"
	305
	306	config GPREL_DATA_NONE
	307	bool "Don't use GP-REL"
	308
	309	endchoice
	310
f8aec757 DH	311	config FRV_ONCPU_SERIAL
	312	bool "Use on-CPU serial ports"
	313	select SERIAL_8250
	314	default y
	315
1da177e4 LT	316	config PCI
	317	bool "Use PCI"
	318	depends on MB93090_MB00
	319	default y
53224185	320	select GENERIC_PCI_IOMAP
1da177e4 LT	321	help
	322	Some FR-V systems (such as the MB93090-MB00 VDK) have PCI
	323	onboard. If you have one of these boards and you wish to use the PCI
	324	facilities, say Y here.
	325
1da177e4 LT	326	config RESERVE_DMA_COHERENT
	327	bool "Reserve DMA coherent memory"
	328	depends on PCI && !MMU
	329	default y
	330	help
	331	Many PCI drivers require access to uncached memory for DMA device
	332	communications (such as is done with some Ethernet buffer rings). If
	333	a fully featured MMU is available, this can be done through page
	334	table settings, but if not, a region has to be set aside and marked
	335	with a special DAMPR register.
	336
	337	Setting this option causes uClinux to set aside a portion of the
	338	available memory for use in this manner. The memory will then be
	339	unavailable for normal kernel use.
	340
	341	source "drivers/pci/Kconfig"
	342
7a758313	343	source "drivers/pcmcia/Kconfig"
1da177e4	344
1da177e4	345	menu "Power management options"
f4cb5700 JB	346
	347	config ARCH_SUSPEND_POSSIBLE
	348	def_bool y
f4cb5700	349
1da177e4 LT	350	source kernel/power/Kconfig
	351	endmenu
	352
	353	endmenu
	354
	355
	356	menu "Executable formats"
	357
	358	source "fs/Kconfig.binfmt"
	359
	360	endmenu
	361
d5950b43 SR	362	source "net/Kconfig"
d5950b43 SR	363
1da177e4 LT	364	source "drivers/Kconfig"
	365
	366	source "fs/Kconfig"
	367
	368	source "arch/frv/Kconfig.debug"
	369
	370	source "security/Kconfig"
	371
	372	source "crypto/Kconfig"
	373
	374	source "lib/Kconfig"