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

#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux Kernel Configuration"

config ARM
	bool
	default y
	select RTC_LIB
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
	  licensed by ARM Ltd and targeted at embedded applications and
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
	  manufactured, but legacy ARM-based PC hardware remains popular in
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

config MMU
	bool
	default y

config EISA
	bool
	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

config SBUS
	bool

config MCA
	bool
	help
	  MicroChannel Architecture is found in some IBM PS/2 machines and
	  laptops.  It is a bus system similar to PCI or ISA. See
	  <file:Documentation/mca.txt> (and especially the web page given
	  there) before attempting to build an MCA bus kernel.

config GENERIC_HARDIRQS
	bool
	default y

config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	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 y

config GENERIC_BUST_SPINLOCK
	bool

config ARCH_MAY_HAVE_PC_FDC
	bool

config GENERIC_ISA_DMA
	bool

config FIQ
	bool

config ARCH_MTD_XIP
	bool

config VECTORS_BASE
	hex
	default 0xffff0000 if MMU
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

source "init/Kconfig"

menu "System Type"

choice
	prompt "ARM system type"
	default ARCH_VERSATILE

config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
	select ARM_AMBA
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
	select ICST525
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
	select ICST307
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
	select ICST307
	help
	  This enables support for ARM Ltd Versatile board.

config ARCH_AT91
	bool "Atmel AT91"
	help
	  This enables support for systems based on the Atmel AT91RM9200
	  and AT91SAM9xxx processors.

config ARCH_CLPS7500
	bool "Cirrus CL-PS7500FE"
	select TIMER_ACORN
	select ISA
	help
	  Support for the Cirrus Logic PS7500FE system-on-a-chip.

config ARCH_CLPS711X
	bool "Cirrus Logic CLPS711x/EP721x-based"
	help
	  Support for Cirrus Logic 711x/721x based boards.

config ARCH_CO285
	bool "Co-EBSA285"
	select FOOTBRIDGE
	select FOOTBRIDGE_ADDIN
	help
	  Support for Intel's EBSA285 companion chip.

config ARCH_EBSA110
	bool "EBSA-110"
	select ISA
	help
	  This is an evaluation board for the StrongARM processor available
	  from Digital. It has limited hardware on-board, including an
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

config ARCH_EP93XX
	bool "EP93xx-based"
	select ARM_AMBA
	select ARM_VIC
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

config ARCH_FOOTBRIDGE
	bool "FootBridge"
	select FOOTBRIDGE
	help
	  Support for systems based on the DC21285 companion chip
	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.

config ARCH_NETX
	bool "Hilscher NetX based"
	select ARM_VIC
	help
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
	select ISA_DMA_API
	help
	  This enables support for systems based on the Hynix HMS720x

config ARCH_IMX
	bool "IMX"
	help
	  Support for Motorola's i.MX family of processors (MX1, MXL).

config ARCH_IOP3XX
	bool "IOP3xx-based"
	depends on MMU
	select PCI
	help
	  Support for Intel's IOP3XX (XScale) family of processors.

config ARCH_IXP4XX
	bool "IXP4xx-based"
	depends on MMU
	help
	  Support for Intel's IXP4XX (XScale) family of processors.

config ARCH_IXP2000
	bool "IXP2400/2800-based"
	depends on MMU
	select PCI
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.

config ARCH_IXP23XX
 	bool "IXP23XX-based"
	depends on MMU
 	select PCI
	help
	  Support for Intel's IXP23xx (XScale) family of processors.

config ARCH_L7200
	bool "LinkUp-L7200"
	select FIQ
	help
	  Say Y here if you intend to run this kernel on a LinkUp Systems
	  L7200 Software Development Board which uses an ARM720T processor.
	  Information on this board can be obtained at:

	  <http://www.linkupsys.com/>

	  If you have any questions or comments about the Linux kernel port
	  to this board, send e-mail to <sjhill@cotw.com>.

config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
	help
	  This enables support for Philips PNX4008 mobile platform.

config ARCH_PXA
	bool "PXA2xx-based"
	depends on MMU
	select ARCH_MTD_XIP
	help
	  Support for Intel's PXA2XX processor line.

config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
	select ARCH_MAY_HAVE_PC_FDC
	select ISA_DMA_API
	help
	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
	  CD-ROM interface, serial and parallel port, and the floppy drive.

config ARCH_SA1100
	bool "SA1100-based"
	select ISA
	select ARCH_DISCONTIGMEM_ENABLE
	select ARCH_MTD_XIP
	help
	  Support for StrongARM 11x0 based boards.

config ARCH_S3C2410
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442"
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
	  the Samsung SMDK2410 development board (and derivatives).

config ARCH_SHARK
	bool "Shark"
	select ISA
	select ISA_DMA
	select PCI
	help
	  Support for the StrongARM based Digital DNARD machine, also known
	  as "Shark" (<http://www.shark-linux.de/shark.html>).

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
	help
	  Say Y here for systems based on one of the Sharp LH7A40X
	  System on a Chip processors.  These CPUs include an ARM922T
	  core with a wide array of integrated devices for
	  hand-held and low-power applications.

config ARCH_OMAP
	bool "TI OMAP"
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

endchoice

source "arch/arm/mach-clps711x/Kconfig"

source "arch/arm/mach-ep93xx/Kconfig"

source "arch/arm/mach-footbridge/Kconfig"

source "arch/arm/mach-integrator/Kconfig"

source "arch/arm/mach-iop3xx/Kconfig"

source "arch/arm/mach-ixp4xx/Kconfig"

source "arch/arm/mach-ixp2000/Kconfig"

source "arch/arm/mach-ixp23xx/Kconfig"

source "arch/arm/mach-pxa/Kconfig"

source "arch/arm/mach-sa1100/Kconfig"

source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"

source "arch/arm/mach-omap2/Kconfig"

source "arch/arm/mach-s3c2410/Kconfig"

source "arch/arm/mach-lh7a40x/Kconfig"

source "arch/arm/mach-imx/Kconfig"

source "arch/arm/mach-h720x/Kconfig"

source "arch/arm/mach-versatile/Kconfig"

source "arch/arm/mach-aaec2000/Kconfig"

source "arch/arm/mach-realview/Kconfig"

source "arch/arm/mach-at91rm9200/Kconfig"

source "arch/arm/mach-netx/Kconfig"

# Definitions to make life easier
config ARCH_ACORN
	bool

source arch/arm/mm/Kconfig

#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

if !MMU
source "arch/arm/Kconfig-nommu"
endif

endmenu

source "arch/arm/common/Kconfig"

config FORCE_MAX_ZONEORDER
	int
	depends on SA1111
	default "9"

menu "Bus support"

config ARM_AMBA
	bool

config ISA
	bool
	help
	  Find out whether you have ISA slots on your motherboard.  ISA is the
	  name of a bus system, i.e. the way the CPU talks to the other stuff
	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
	  newer boards don't support it.  If you have ISA, say Y, otherwise N.

# Select ISA DMA controller support
config ISA_DMA
	bool
	select ISA_DMA_API

# Select ISA DMA interface
config ISA_DMA_API
	bool

config PCI
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX
	help
	  Find out whether you have a PCI motherboard. PCI is the name of a
	  bus system, i.e. the way the CPU talks to the other stuff inside
	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
	  VESA. If you have PCI, say Y, otherwise N.

	  The PCI-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>, contains valuable
	  information about which PCI hardware does work under Linux and which
	  doesn't.

# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
	depends on EXPERIMENTAL && REALVIEW_MPCORE
	help
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all, single
	  processor machines. On a single processor machine, the kernel will
	  run faster if you say N here.

	  See also the <file:Documentation/smp.txt>,
	  <file:Documentation/i386/IO-APIC.txt>,
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	  <http://www.linuxdoc.org/docs.html#howto>.

	  If you don't know what to do here, say N.

config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

config LOCAL_TIMERS
	bool "Use local timer interrupts"
	depends on SMP && REALVIEW_MPCORE
	default y
	help
	  Enable support for local timers on SMP platforms, rather then the
	  legacy IPI broadcast method.  Local timers allows the system
	  accounting to be spread across the timer interval, preventing a
	  "thundering herd" at every timer tick.

config PREEMPT
	bool "Preemptible Kernel (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  This option reduces the latency of the kernel when reacting to
	  real-time or interactive events by allowing a low priority process to
	  be preempted even if it is in kernel mode executing a system call.
	  This allows applications to run more reliably even when the system is
	  under load.

	  Say Y here if you are building a kernel for a desktop, embedded
	  or real-time system.  Say N if you are unsure.

config NO_IDLE_HZ
	bool "Dynamic tick timer"
	help
	  Select this option if you want to disable continuous timer ticks
	  and have them programmed to occur as required. This option saves
	  power as the system can remain in idle state for longer.

	  By default dynamic tick is disabled during the boot, and can be
	  manually enabled with:

	    echo 1 > /sys/devices/system/timer/timer0/dyn_tick

	  Alternatively, if you want dynamic tick automatically enabled
	  during boot, pass "dyntick=enable" via the kernel command string.

	  Please note that dynamic tick may affect the accuracy of
	  timekeeping on some platforms depending on the implementation.
	  Currently at least OMAP, PXA2xx and SA11x0 platforms are known
	  to have accurate timekeeping with dynamic tick.

config HZ
	int
	default 128 if ARCH_L7200
	default 200 if ARCH_EBSA110 || ARCH_S3C2410
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
	default 100

config AEABI
	bool "Use the ARM EABI to compile the kernel"
	help
	  This option allows for the kernel to be compiled using the latest
	  ARM ABI (aka EABI).  This is only useful if you are using a user
	  space environment that is also compiled with EABI.

	  Since there are major incompatibilities between the legacy ABI and
	  EABI, especially with regard to structure member alignment, this
	  option also changes the kernel syscall calling convention to
	  disambiguate both ABIs and allow for backward compatibility support
	  (selected with CONFIG_OABI_COMPAT).

	  To use this you need GCC version 4.0.0 or later.

config OABI_COMPAT
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
	depends on AEABI && EXPERIMENTAL
	default y
	help
	  This option preserves the old syscall interface along with the
	  new (ARM EABI) one. It also provides a compatibility layer to
	  intercept syscalls that have structure arguments which layout
	  in memory differs between the legacy ABI and the new ARM EABI
	  (only for non "thumb" binaries). This option adds a tiny
	  overhead to all syscalls and produces a slightly larger kernel.
	  If you know you'll be using only pure EABI user space then you
	  can say N here. If this option is not selected and you attempt
	  to execute a legacy ABI binary then the result will be
	  UNPREDICTABLE (in fact it can be predicted that it won't work
	  at all). If in doubt say Y.

config ARCH_DISCONTIGMEM_ENABLE
	bool
	default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
	help
	  Say Y to support efficient handling of discontiguous physical memory,
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
	  See <file:Documentation/vm/numa> for more.

config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

source "mm/Kconfig"

config LEDS
	bool "Timer and CPU usage LEDs"
	depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
		   ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
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
	6	mainmenu "Linux Kernel Configuration"
	7
	8	config ARM
	9	bool
	10	default y
12b824fb	11	select RTC_LIB
1da177e4 LT	12	help
1da177e4 LT	13	The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a	14	licensed by ARM Ltd and targeted at embedded applications and
1da177e4	15	handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a	16	manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4 LT	17	Europe. There is an ARM Linux project with a web page at
	18	<http://www.arm.linux.org.uk/>.
	19
	20	config MMU
	21	bool
	22	default y
	23
	24	config EISA
	25	bool
	26	---help---
	27	The Extended Industry Standard Architecture (EISA) bus was
	28	developed as an open alternative to the IBM MicroChannel bus.
	29
	30	The EISA bus provided some of the features of the IBM MicroChannel
	31	bus while maintaining backward compatibility with cards made for
	32	the older ISA bus. The EISA bus saw limited use between 1988 and
	33	1995 when it was made obsolete by the PCI bus.
	34
	35	Say Y here if you are building a kernel for an EISA-based machine.
	36
	37	Otherwise, say N.
	38
	39	config SBUS
	40	bool
	41
	42	config MCA
	43	bool
	44	help
	45	MicroChannel Architecture is found in some IBM PS/2 machines and
	46	laptops. It is a bus system similar to PCI or ISA. See
	47	<file:Documentation/mca.txt> (and especially the web page given
	48	there) before attempting to build an MCA bus kernel.
	49
4a2581a0 TG	50	config GENERIC_HARDIRQS
	51	bool
	52	default y
	53
	54	config HARDIRQS_SW_RESEND
	55	bool
	56	default y
	57
	58	config GENERIC_IRQ_PROBE
	59	bool
	60	default y
	61
1da177e4 LT	62	config RWSEM_GENERIC_SPINLOCK
	63	bool
	64	default y
	65
	66	config RWSEM_XCHGADD_ALGORITHM
	67	bool
	68
b89c3b16 AM	69	config GENERIC_HWEIGHT
	70	bool
	71	default y
	72
1da177e4 LT	73	config GENERIC_CALIBRATE_DELAY
	74	bool
	75	default y
	76
	77	config GENERIC_BUST_SPINLOCK
	78	bool
	79
a08b6b79 AV	80	config ARCH_MAY_HAVE_PC_FDC
	81	bool
	82
1da177e4 LT	83	config GENERIC_ISA_DMA
	84	bool
	85
1da177e4 LT	86	config FIQ
	87	bool
	88
034d2f5a AV	89	config ARCH_MTD_XIP
	90	bool
	91
c760fc19 HC	92	config VECTORS_BASE
	93	hex
	94	default 0xffff0000 if MMU
	95	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	96	default 0x00000000
	97	help
	98	The base address of exception vectors.
	99
1da177e4 LT	100	source "init/Kconfig"
	101
	102	menu "System Type"
	103
	104	choice
	105	prompt "ARM system type"
6a0e2430	106	default ARCH_VERSATILE
1da177e4	107
4af6fee1 DS	108	config ARCH_AAEC2000
	109	bool "Agilent AAEC-2000 based"
	110	select ARM_AMBA
	111	help
	112	This enables support for systems based on the Agilent AAEC-2000
	113
	114	config ARCH_INTEGRATOR
	115	bool "ARM Ltd. Integrator family"
	116	select ARM_AMBA
	117	select ICST525
	118	help
	119	Support for ARM's Integrator platform.
	120
	121	config ARCH_REALVIEW
	122	bool "ARM Ltd. RealView family"
	123	select ARM_AMBA
	124	select ICST307
	125	help
	126	This enables support for ARM Ltd RealView boards.
	127
	128	config ARCH_VERSATILE
	129	bool "ARM Ltd. Versatile family"
	130	select ARM_AMBA
	131	select ARM_VIC
	132	select ICST307
	133	help
	134	This enables support for ARM Ltd Versatile board.
	135
8fc5ffa0 AV	136	config ARCH_AT91
8fc5ffa0 AV	137	bool "Atmel AT91"
4af6fee1	138	help
8fc5ffa0 AV	139	This enables support for systems based on the Atmel AT91RM9200
8fc5ffa0 AV	140	and AT91SAM9xxx processors.
4af6fee1	141
1da177e4	142	config ARCH_CLPS7500
4af6fee1	143	bool "Cirrus CL-PS7500FE"
1da177e4	144	select TIMER_ACORN
f7e68bbf	145	select ISA
f999b8bd MM	146	help
f999b8bd MM	147	Support for the Cirrus Logic PS7500FE system-on-a-chip.
1da177e4 LT	148
1da177e4 LT	149	config ARCH_CLPS711X
4af6fee1	150	bool "Cirrus Logic CLPS711x/EP721x-based"
f999b8bd MM	151	help
f999b8bd MM	152	Support for Cirrus Logic 711x/721x based boards.
1da177e4 LT	153
	154	config ARCH_CO285
	155	bool "Co-EBSA285"
	156	select FOOTBRIDGE
	157	select FOOTBRIDGE_ADDIN
f999b8bd MM	158	help
f999b8bd MM	159	Support for Intel's EBSA285 companion chip.
1da177e4 LT	160
	161	config ARCH_EBSA110
	162	bool "EBSA-110"
f7e68bbf	163	select ISA
1da177e4 LT	164	help
1da177e4 LT	165	This is an evaluation board for the StrongARM processor available
f6c8965a	166	from Digital. It has limited hardware on-board, including an
1da177e4 LT	167	Ethernet interface, two PCMCIA sockets, two serial ports and a
	168	parallel port.
	169
e7736d47 LB	170	config ARCH_EP93XX
	171	bool "EP93xx-based"
	172	select ARM_AMBA
	173	select ARM_VIC
	174	help
	175	This enables support for the Cirrus EP93xx series of CPUs.
	176
1da177e4 LT	177	config ARCH_FOOTBRIDGE
	178	bool "FootBridge"
	179	select FOOTBRIDGE
f999b8bd MM	180	help
	181	Support for systems based on the DC21285 companion chip
	182	("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4	183
4af6fee1 DS	184	config ARCH_NETX
	185	bool "Hilscher NetX based"
	186	select ARM_VIC
f999b8bd	187	help
4af6fee1 DS	188	This enables support for systems based on the Hilscher NetX Soc
	189
	190	config ARCH_H720X
	191	bool "Hynix HMS720x-based"
	192	select ISA_DMA_API
	193	help
	194	This enables support for systems based on the Hynix HMS720x
	195
	196	config ARCH_IMX
	197	bool "IMX"
	198	help
	199	Support for Motorola's i.MX family of processors (MX1, MXL).
1da177e4 LT	200
	201	config ARCH_IOP3XX
	202	bool "IOP3xx-based"
a4f7e763	203	depends on MMU
f7e68bbf	204	select PCI
f999b8bd MM	205	help
f999b8bd MM	206	Support for Intel's IOP3XX (XScale) family of processors.
1da177e4 LT	207
	208	config ARCH_IXP4XX
	209	bool "IXP4xx-based"
a4f7e763	210	depends on MMU
f999b8bd MM	211	help
f999b8bd MM	212	Support for Intel's IXP4XX (XScale) family of processors.
1da177e4 LT	213
	214	config ARCH_IXP2000
	215	bool "IXP2400/2800-based"
a4f7e763	216	depends on MMU
f7e68bbf	217	select PCI
f999b8bd MM	218	help
f999b8bd MM	219	Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4	220
c4713074 LB	221	config ARCH_IXP23XX
c4713074 LB	222	bool "IXP23XX-based"
a4f7e763	223	depends on MMU
c4713074 LB	224	select PCI
	225	help
	226	Support for Intel's IXP23xx (XScale) family of processors.
	227
1da177e4 LT	228	config ARCH_L7200
	229	bool "LinkUp-L7200"
	230	select FIQ
	231	help
	232	Say Y here if you intend to run this kernel on a LinkUp Systems
	233	L7200 Software Development Board which uses an ARM720T processor.
	234	Information on this board can be obtained at:
	235
	236	<http://www.linkupsys.com/>
	237
	238	If you have any questions or comments about the Linux kernel port
	239	to this board, send e-mail to <sjhill@cotw.com>.
	240
4af6fee1 DS	241	config ARCH_PNX4008
	242	bool "Philips Nexperia PNX4008 Mobile"
	243	help
	244	This enables support for Philips PNX4008 mobile platform.
	245
1da177e4 LT	246	config ARCH_PXA
1da177e4 LT	247	bool "PXA2xx-based"
a4f7e763	248	depends on MMU
034d2f5a	249	select ARCH_MTD_XIP
f999b8bd MM	250	help
f999b8bd MM	251	Support for Intel's PXA2XX processor line.
1da177e4 LT	252
	253	config ARCH_RPC
	254	bool "RiscPC"
	255	select ARCH_ACORN
	256	select FIQ
	257	select TIMER_ACORN
a08b6b79	258	select ARCH_MAY_HAVE_PC_FDC
065909b9	259	select ISA_DMA_API
1da177e4 LT	260	help
	261	On the Acorn Risc-PC, Linux can support the internal IDE disk and
	262	CD-ROM interface, serial and parallel port, and the floppy drive.
	263
	264	config ARCH_SA1100
	265	bool "SA1100-based"
f7e68bbf	266	select ISA
3cd9e19e	267	select ARCH_DISCONTIGMEM_ENABLE
034d2f5a	268	select ARCH_MTD_XIP
f999b8bd MM	269	help
f999b8bd MM	270	Support for StrongARM 11x0 based boards.
1da177e4 LT	271
1da177e4 LT	272	config ARCH_S3C2410
cd701aa2	273	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442"
1da177e4 LT	274	help
	275	Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	276	BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a	277	the Samsung SMDK2410 development board (and derivatives).
1da177e4 LT	278
	279	config ARCH_SHARK
	280	bool "Shark"
f7e68bbf RK	281	select ISA
	282	select ISA_DMA
	283	select PCI
f999b8bd MM	284	help
	285	Support for the StrongARM based Digital DNARD machine, also known
	286	as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4 LT	287
	288	config ARCH_LH7A40X
	289	bool "Sharp LH7A40X"
	290	help
	291	Say Y here for systems based on one of the Sharp LH7A40X
	292	System on a Chip processors. These CPUs include an ARM922T
	293	core with a wide array of integrated devices for
	294	hand-held and low-power applications.
	295
	296	config ARCH_OMAP
	297	bool "TI OMAP"
f999b8bd MM	298	help
f999b8bd MM	299	Support for TI's OMAP platform (OMAP1 and OMAP2).
1da177e4	300
1da177e4 LT	301	endchoice
	302
	303	source "arch/arm/mach-clps711x/Kconfig"
	304
e7736d47 LB	305	source "arch/arm/mach-ep93xx/Kconfig"
e7736d47 LB	306
1da177e4 LT	307	source "arch/arm/mach-footbridge/Kconfig"
	308
	309	source "arch/arm/mach-integrator/Kconfig"
	310
	311	source "arch/arm/mach-iop3xx/Kconfig"
	312
	313	source "arch/arm/mach-ixp4xx/Kconfig"
	314
	315	source "arch/arm/mach-ixp2000/Kconfig"
	316
c4713074 LB	317	source "arch/arm/mach-ixp23xx/Kconfig"
c4713074 LB	318
1da177e4 LT	319	source "arch/arm/mach-pxa/Kconfig"
	320
	321	source "arch/arm/mach-sa1100/Kconfig"
	322
d48af15e TL	323	source "arch/arm/plat-omap/Kconfig"
	324
	325	source "arch/arm/mach-omap1/Kconfig"
1da177e4	326
1dbae815 TL	327	source "arch/arm/mach-omap2/Kconfig"
1dbae815 TL	328
1da177e4 LT	329	source "arch/arm/mach-s3c2410/Kconfig"
	330
	331	source "arch/arm/mach-lh7a40x/Kconfig"
	332
	333	source "arch/arm/mach-imx/Kconfig"
	334
	335	source "arch/arm/mach-h720x/Kconfig"
	336
	337	source "arch/arm/mach-versatile/Kconfig"
	338
038c5b60 BN	339	source "arch/arm/mach-aaec2000/Kconfig"
038c5b60 BN	340
8ad68bbf CM	341	source "arch/arm/mach-realview/Kconfig"
8ad68bbf CM	342
73a59c1c SP	343	source "arch/arm/mach-at91rm9200/Kconfig"
73a59c1c SP	344
bb6d8c88 SH	345	source "arch/arm/mach-netx/Kconfig"
bb6d8c88 SH	346
1da177e4 LT	347	# Definitions to make life easier
	348	config ARCH_ACORN
	349	bool
	350
	351	source arch/arm/mm/Kconfig
	352
	353	# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
	354	config XSCALE_PMU
	355	bool
	356	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	357	default y
	358
3b93e7b0 HC	359	if !MMU
	360	source "arch/arm/Kconfig-nommu"
	361	endif
	362
1da177e4 LT	363	endmenu
	364
	365	source "arch/arm/common/Kconfig"
	366
	367	config FORCE_MAX_ZONEORDER
	368	int
	369	depends on SA1111
	370	default "9"
	371
	372	menu "Bus support"
	373
	374	config ARM_AMBA
	375	bool
	376
	377	config ISA
	378	bool
1da177e4 LT	379	help
	380	Find out whether you have ISA slots on your motherboard. ISA is the
	381	name of a bus system, i.e. the way the CPU talks to the other stuff
	382	inside your box. Other bus systems are PCI, EISA, MicroChannel
	383	(MCA) or VESA. ISA is an older system, now being displaced by PCI;
	384	newer boards don't support it. If you have ISA, say Y, otherwise N.
	385
065909b9	386	# Select ISA DMA controller support
1da177e4 LT	387	config ISA_DMA
1da177e4 LT	388	bool
065909b9	389	select ISA_DMA_API
1da177e4	390
065909b9	391	# Select ISA DMA interface
5cae841b AV	392	config ISA_DMA_API
5cae841b AV	393	bool
5cae841b	394
1da177e4	395	config PCI
68939121	396	bool "PCI support" if ARCH_INTEGRATOR_AP \|\| ARCH_VERSATILE_PB \|\| ARCH_IXP4XX
1da177e4 LT	397	help
	398	Find out whether you have a PCI motherboard. PCI is the name of a
	399	bus system, i.e. the way the CPU talks to the other stuff inside
	400	your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
	401	VESA. If you have PCI, say Y, otherwise N.
	402
	403	The PCI-HOWTO, available from
	404	<http://www.tldp.org/docs.html#howto>, contains valuable
	405	information about which PCI hardware does work under Linux and which
	406	doesn't.
	407
	408	# Select the host bridge type
	409	config PCI_HOST_VIA82C505
	410	bool
	411	depends on PCI && ARCH_SHARK
	412	default y
	413
	414	source "drivers/pci/Kconfig"
	415
	416	source "drivers/pcmcia/Kconfig"
	417
	418	endmenu
	419
	420	menu "Kernel Features"
	421
	422	config SMP
	423	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
f6db449c	424	depends on EXPERIMENTAL && REALVIEW_MPCORE
1da177e4 LT	425	help
	426	This enables support for systems with more than one CPU. If you have
	427	a system with only one CPU, like most personal computers, say N. If
	428	you have a system with more than one CPU, say Y.
	429
	430	If you say N here, the kernel will run on single and multiprocessor
	431	machines, but will use only one CPU of a multiprocessor machine. If
	432	you say Y here, the kernel will run on many, but not all, single
	433	processor machines. On a single processor machine, the kernel will
	434	run faster if you say N here.
	435
12c62c2e AO	436	See also the <file:Documentation/smp.txt>,
12c62c2e AO	437	<file:Documentation/i386/IO-APIC.txt>,
1da177e4 LT	438	<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	439	<http://www.linuxdoc.org/docs.html#howto>.
	440
	441	If you don't know what to do here, say N.
	442
	443	config NR_CPUS
	444	int "Maximum number of CPUs (2-32)"
	445	range 2 32
	446	depends on SMP
	447	default "4"
	448
a054a811 RK	449	config HOTPLUG_CPU
	450	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	451	depends on SMP && HOTPLUG && EXPERIMENTAL
	452	help
	453	Say Y here to experiment with turning CPUs off and on. CPUs
	454	can be controlled through /sys/devices/system/cpu.
	455
37ee16ae RK	456	config LOCAL_TIMERS
37ee16ae RK	457	bool "Use local timer interrupts"
2a98beb6	458	depends on SMP && REALVIEW_MPCORE
37ee16ae RK	459	default y
	460	help
	461	Enable support for local timers on SMP platforms, rather then the
	462	legacy IPI broadcast method. Local timers allows the system
	463	accounting to be spread across the timer interval, preventing a
	464	"thundering herd" at every timer tick.
	465
1da177e4 LT	466	config PREEMPT
	467	bool "Preemptible Kernel (EXPERIMENTAL)"
	468	depends on EXPERIMENTAL
	469	help
	470	This option reduces the latency of the kernel when reacting to
	471	real-time or interactive events by allowing a low priority process to
	472	be preempted even if it is in kernel mode executing a system call.
	473	This allows applications to run more reliably even when the system is
	474	under load.
	475
	476	Say Y here if you are building a kernel for a desktop, embedded
	477	or real-time system. Say N if you are unsure.
	478
8749af68 RK	479	config NO_IDLE_HZ
	480	bool "Dynamic tick timer"
	481	help
	482	Select this option if you want to disable continuous timer ticks
	483	and have them programmed to occur as required. This option saves
	484	power as the system can remain in idle state for longer.
	485
	486	By default dynamic tick is disabled during the boot, and can be
	487	manually enabled with:
	488
	489	echo 1 > /sys/devices/system/timer/timer0/dyn_tick
	490
	491	Alternatively, if you want dynamic tick automatically enabled
	492	during boot, pass "dyntick=enable" via the kernel command string.
	493
f2be64b3 TL	494	Please note that dynamic tick may affect the accuracy of
f2be64b3 TL	495	timekeeping on some platforms depending on the implementation.
569d2c34 NP	496	Currently at least OMAP, PXA2xx and SA11x0 platforms are known
569d2c34 NP	497	to have accurate timekeeping with dynamic tick.
f2be64b3	498
f8065813 RK	499	config HZ
	500	int
	501	default 128 if ARCH_L7200
	502	default 200 if ARCH_EBSA110 \|\| ARCH_S3C2410
bfe65704	503	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
f8065813 RK	504	default 100
f8065813 RK	505
704bdda0 NP	506	config AEABI
	507	bool "Use the ARM EABI to compile the kernel"
	508	help
	509	This option allows for the kernel to be compiled using the latest
	510	ARM ABI (aka EABI). This is only useful if you are using a user
	511	space environment that is also compiled with EABI.
	512
	513	Since there are major incompatibilities between the legacy ABI and
	514	EABI, especially with regard to structure member alignment, this
	515	option also changes the kernel syscall calling convention to
	516	disambiguate both ABIs and allow for backward compatibility support
	517	(selected with CONFIG_OABI_COMPAT).
	518
	519	To use this you need GCC version 4.0.0 or later.
	520
6c90c872	521	config OABI_COMPAT
a73a3ff1	522	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4	523	depends on AEABI && EXPERIMENTAL
6c90c872 NP	524	default y
	525	help
	526	This option preserves the old syscall interface along with the
	527	new (ARM EABI) one. It also provides a compatibility layer to
	528	intercept syscalls that have structure arguments which layout
	529	in memory differs between the legacy ABI and the new ARM EABI
	530	(only for non "thumb" binaries). This option adds a tiny
	531	overhead to all syscalls and produces a slightly larger kernel.
	532	If you know you'll be using only pure EABI user space then you
	533	can say N here. If this option is not selected and you attempt
	534	to execute a legacy ABI binary then the result will be
	535	UNPREDICTABLE (in fact it can be predicted that it won't work
	536	at all). If in doubt say Y.
	537
3f22ab27	538	config ARCH_DISCONTIGMEM_ENABLE
1da177e4	539	bool
f7e68bbf	540	default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
1da177e4 LT	541	help
	542	Say Y to support efficient handling of discontiguous physical memory,
	543	for architectures which are either NUMA (Non-Uniform Memory Access)
	544	or have huge holes in the physical address space for other reasons.
	545	See <file:Documentation/vm/numa> for more.
	546
c80d79d7 YG	547	config NODES_SHIFT
	548	int
	549	default "4" if ARCH_LH7A40X
	550	default "2"
	551	depends on NEED_MULTIPLE_NODES
	552
3f22ab27 DH	553	source "mm/Kconfig"
3f22ab27 DH	554
1da177e4 LT	555	config LEDS
	556	bool "Timer and CPU usage LEDs"
	557	depends on ARCH_CDB89712 \|\| ARCH_CO285 \|\| ARCH_EBSA110 \|\| \
	558	ARCH_EBSA285 \|\| ARCH_IMX \|\| ARCH_INTEGRATOR \|\| \
	559	ARCH_LUBBOCK \|\| MACH_MAINSTONE \|\| ARCH_NETWINDER \|\| \
	560	ARCH_OMAP \|\| ARCH_P720T \|\| ARCH_PXA_IDP \|\| \
73a59c1c	561	ARCH_SA1100 \|\| ARCH_SHARK \|\| ARCH_VERSATILE \|\| \