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diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig new file mode 100644 index 000000000000..4055115ae0e2 --- /dev/null +++ b/arch/arm/Kconfig @@ -0,0 +1,736 @@ +# +# 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 + 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 UID16 + bool + default y + +config RWSEM_GENERIC_SPINLOCK + bool + default y + +config RWSEM_XCHGADD_ALGORITHM + bool + +config GENERIC_CALIBRATE_DELAY + bool + default y + +config GENERIC_BUST_SPINLOCK + bool + +config GENERIC_ISA_DMA + bool + +config GENERIC_IOMAP + bool + default y + +config FIQ + bool + +source "init/Kconfig" + +menu "System Type" + +choice + prompt "ARM system type" + default ARCH_RPC + +config ARCH_CLPS7500 + bool "Cirrus-CL-PS7500FE" + select TIMER_ACORN + +config ARCH_CLPS711X + bool "CLPS711x/EP721x-based" + +config ARCH_CO285 + bool "Co-EBSA285" + select FOOTBRIDGE + select FOOTBRIDGE_ADDIN + +config ARCH_EBSA110 + bool "EBSA-110" + help + This is an evaluation board for the StrongARM processor available + from Digital. It has limited hardware on-board, including an onboard + Ethernet interface, two PCMCIA sockets, two serial ports and a + parallel port. + +config ARCH_CAMELOT + bool "Epxa10db" + help + This enables support for Altera's Excalibur XA10 development board. + If you would like to build your kernel to run on one of these boards + then you must say 'Y' here. Otherwise say 'N' + +config ARCH_FOOTBRIDGE + bool "FootBridge" + select FOOTBRIDGE + +config ARCH_INTEGRATOR + bool "Integrator" + select ARM_AMBA + select ICST525 + +config ARCH_IOP3XX + bool "IOP3xx-based" + +config ARCH_IXP4XX + bool "IXP4xx-based" + select DMABOUNCE + +config ARCH_IXP2000 + bool "IXP2400/2800-based" + +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_PXA + bool "PXA2xx-based" + +config ARCH_RPC + bool "RiscPC" + select ARCH_ACORN + select FIQ + select TIMER_ACORN + 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" + +config ARCH_S3C2410 + bool "Samsung S3C2410" + 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 derviatives). + +config ARCH_SHARK + bool "Shark" + +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" + +config ARCH_VERSATILE + bool "Versatile" + select ARM_AMBA + select ICST307 + help + This enables support for ARM Ltd Versatile board. + +config ARCH_IMX + bool "IMX" + +config ARCH_H720X + bool "Hynix-HMS720x-based" + help + This enables support for systems based on the Hynix HMS720x + +endchoice + +source "arch/arm/mach-clps711x/Kconfig" + +source "arch/arm/mach-epxa10db/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-pxa/Kconfig" + +source "arch/arm/mach-sa1100/Kconfig" + +source "arch/arm/mach-omap/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" + +# 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 + +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 + depends on FOOTBRIDGE_HOST || ARCH_SHARK || ARCH_CLPS7500 || ARCH_EBSA110 || ARCH_CDB89712 || ARCH_EDB7211 || ARCH_SA1100 || ARCH_MX1ADS + default y + 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. + +config ISA_DMA + bool + depends on FOOTBRIDGE_HOST || ARCH_SHARK + default y + +config PCI + bool "PCI support" if ARCH_INTEGRATOR_AP + default y if ARCH_SHARK || FOOTBRIDGE_HOST || ARCH_IOP3XX || ARCH_IXP4XX || ARCH_IXP2000 + 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 && n + 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.tex>, + <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 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 DISCONTIGMEM + bool + depends on ARCH_EDB7211 || ARCH_SA1100 || (ARCH_LH7A40X && !LH7A40X_CONTIGMEM) + default y + 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 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 + help + If you say Y here, the LEDs on your machine will be used + to provide useful information about your current system status. + + If you are compiling a kernel for a NetWinder or EBSA-285, you will + be able to select which LEDs are active using the options below. If + you are compiling a kernel for the EBSA-110 or the LART however, the + red LED will simply flash regularly to indicate that the system is + still functional. It is safe to say Y here if you have a CATS + system, but the driver will do nothing. + +config LEDS_TIMER + bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ + MACH_OMAP_H2 || MACH_OMAP_PERSEUS2 + depends on LEDS + default y if ARCH_EBSA110 + help + If you say Y here, one of the system LEDs (the green one on the + NetWinder, the amber one on the EBSA285, or the red one on the LART) + will flash regularly to indicate that the system is still + operational. This is mainly useful to kernel hackers who are + debugging unstable kernels. + + The LART uses the same LED for both Timer LED and CPU usage LED + functions. You may choose to use both, but the Timer LED function + will overrule the CPU usage LED. + +config LEDS_CPU + bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ + !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2 + depends on LEDS + help + If you say Y here, the red LED will be used to give a good real + time indication of CPU usage, by lighting whenever the idle task + is not currently executing. + + The LART uses the same LED for both Timer LED and CPU usage LED + functions. You may choose to use both, but the Timer LED function + will overrule the CPU usage LED. + +config ALIGNMENT_TRAP + bool + default y if !ARCH_EBSA110 + help + ARM processors can not fetch/store information which is not + naturally aligned on the bus, i.e., a 4 byte fetch must start at an + address divisible by 4. On 32-bit ARM processors, these non-aligned + fetch/store instructions will be emulated in software if you say + here, which has a severe performance impact. This is necessary for + correct operation of some network protocols. With an IP-only + configuration it is safe to say N, otherwise say Y. + +endmenu + +menu "Boot options" + +# Compressed boot loader in ROM. Yes, we really want to ask about +# TEXT and BSS so we preserve their values in the config files. +config ZBOOT_ROM_TEXT + hex "Compressed ROM boot loader base address" + default "0" + help + The physical address at which the ROM-able zImage is to be + placed in the target. Platforms which normally make use of + ROM-able zImage formats normally set this to a suitable + value in their defconfig file. + + If ZBOOT_ROM is not enabled, this has no effect. + +config ZBOOT_ROM_BSS + hex "Compressed ROM boot loader BSS address" + default "0" + help + The base address of 64KiB of read/write memory in the target + for the ROM-able zImage, which must be available while the + decompressor is running. Platforms which normally make use of + ROM-able zImage formats normally set this to a suitable + value in their defconfig file. + + If ZBOOT_ROM is not enabled, this has no effect. + +config ZBOOT_ROM + bool "Compressed boot loader in ROM/flash" + depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS + help + Say Y here if you intend to execute your compressed kernel image + (zImage) directly from ROM or flash. If unsure, say N. + +config CMDLINE + string "Default kernel command string" + default "" + help + On some architectures (EBSA110 and CATS), there is currently no way + for the boot loader to pass arguments to the kernel. For these + architectures, you should supply some command-line options at build + time by entering them here. As a minimum, you should specify the + memory size and the root device (e.g., mem=64M root=/dev/nfs). + +config XIP_KERNEL + bool "Kernel Execute-In-Place from ROM" + depends on !ZBOOT_ROM + help + Execute-In-Place allows the kernel to run from non-volatile storage + directly addressable by the CPU, such as NOR flash. This saves RAM + space since the text section of the kernel is not loaded from flash + to RAM. Read-write sections, such as the data section and stack, + are still copied to RAM. The XIP kernel is not compressed since + it has to run directly from flash, so it will take more space to + store it. The flash address used to link the kernel object files, + and for storing it, is configuration dependent. Therefore, if you + say Y here, you must know the proper physical address where to + store the kernel image depending on your own flash memory usage. + + Also note that the make target becomes "make xipImage" rather than + "make zImage" or "make Image". The final kernel binary to put in + ROM memory will be arch/arm/boot/xipImage. + + If unsure, say N. + +config XIP_PHYS_ADDR + hex "XIP Kernel Physical Location" + depends on XIP_KERNEL + default "0x00080000" + help + This is the physical address in your flash memory the kernel will + be linked for and stored to. This address is dependent on your + own flash usage. + +endmenu + +if (ARCH_SA1100 || ARCH_INTEGRATOR) + +menu "CPU Frequency scaling" + +source "drivers/cpufreq/Kconfig" + +config CPU_FREQ_SA1100 + bool + depends on CPU_FREQ && (SA1100_LART || SA1100_PLEB) + default y + +config CPU_FREQ_SA1110 + bool + depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3) + default y + +config CPU_FREQ_INTEGRATOR + tristate "CPUfreq driver for ARM Integrator CPUs" + depends on ARCH_INTEGRATOR && CPU_FREQ + default y + help + This enables the CPUfreq driver for ARM Integrator CPUs. + + For details, take a look at <file:Documentation/cpu-freq>. + + If in doubt, say Y. + +endmenu + +endif + +menu "Floating point emulation" + +comment "At least one emulation must be selected" + +config FPE_NWFPE + bool "NWFPE math emulation" + ---help--- + Say Y to include the NWFPE floating point emulator in the kernel. + This is necessary to run most binaries. Linux does not currently + support floating point hardware so you need to say Y here even if + your machine has an FPA or floating point co-processor podule. + + You may say N here if you are going to load the Acorn FPEmulator + early in the bootup. + +config FPE_NWFPE_XP + bool "Support extended precision" + depends on FPE_NWFPE && !CPU_BIG_ENDIAN + help + Say Y to include 80-bit support in the kernel floating-point + emulator. Otherwise, only 32 and 64-bit support is compiled in. + Note that gcc does not generate 80-bit operations by default, + so in most cases this option only enlarges the size of the + floating point emulator without any good reason. + + You almost surely want to say N here. + +config FPE_FASTFPE + bool "FastFPE math emulation (EXPERIMENTAL)" + depends on !CPU_32v3 && EXPERIMENTAL + ---help--- + Say Y here to include the FAST floating point emulator in the kernel. + This is an experimental much faster emulator which now also has full + precision for the mantissa. It does not support any exceptions. + It is very simple, and approximately 3-6 times faster than NWFPE. + + It should be sufficient for most programs. It may be not suitable + for scientific calculations, but you have to check this for yourself. + If you do not feel you need a faster FP emulation you should better + choose NWFPE. + +config VFP + bool "VFP-format floating point maths" + depends on CPU_V6 || CPU_ARM926T + help + Say Y to include VFP support code in the kernel. This is needed + if your hardware includes a VFP unit. + + Please see <file:Documentation/arm/VFP/release-notes.txt> for + release notes and additional status information. + + Say N if your target does not have VFP hardware. + +endmenu + +menu "Userspace binary formats" + +source "fs/Kconfig.binfmt" + +config ARTHUR + tristate "RISC OS personality" + help + Say Y here to include the kernel code necessary if you want to run + Acorn RISC OS/Arthur binaries under Linux. This code is still very + experimental; if this sounds frightening, say N and sleep in peace. + You can also say M here to compile this support as a module (which + will be called arthur). + +endmenu + +menu "Power management options" + +config PM + bool "Power Management support" + ---help--- + "Power Management" means that parts of your computer are shut + off or put into a power conserving "sleep" mode if they are not + being used. There are two competing standards for doing this: APM + and ACPI. If you want to use either one, say Y here and then also + to the requisite support below. + + Power Management is most important for battery powered laptop + computers; if you have a laptop, check out the Linux Laptop home + page on the WWW at <http://www.linux-on-laptops.com/> or + Tuxmobil - Linux on Mobile Computers at <http://www.tuxmobil.org/> + and the Battery Powered Linux mini-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + Note that, even if you say N here, Linux on the x86 architecture + will issue the hlt instruction if nothing is to be done, thereby + sending the processor to sleep and saving power. + +config APM + tristate "Advanced Power Management Emulation" + depends on PM + ---help--- + APM is a BIOS specification for saving power using several different + techniques. This is mostly useful for battery powered laptops with + APM compliant BIOSes. If you say Y here, the system time will be + reset after a RESUME operation, the /proc/apm device will provide + battery status information, and user-space programs will receive + notification of APM "events" (e.g. battery status change). + + If you select "Y" here, you can disable actual use of the APM + BIOS by passing the "apm=off" option to the kernel at boot time. + + Note that the APM support is almost completely disabled for + machines with more than one CPU. + + In order to use APM, you will need supporting software. For location + and more information, read <file:Documentation/pm.txt> and the + Battery Powered Linux mini-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + This driver does not spin down disk drives (see the hdparm(8) + manpage ("man 8 hdparm") for that), and it doesn't turn off + VESA-compliant "green" monitors. + + This driver does not support the TI 4000M TravelMate and the ACER + 486/DX4/75 because they don't have compliant BIOSes. Many "green" + desktop machines also don't have compliant BIOSes, and this driver + may cause those machines to panic during the boot phase. + + Generally, if you don't have a battery in your machine, there isn't + much point in using this driver and you should say N. If you get + random kernel OOPSes or reboots that don't seem to be related to + anything, try disabling/enabling this option (or disabling/enabling + APM in your BIOS). + + Some other things you should try when experiencing seemingly random, + "weird" problems: + + 1) make sure that you have enough swap space and that it is + enabled. + 2) pass the "no-hlt" option to the kernel + 3) switch on floating point emulation in the kernel and pass + the "no387" option to the kernel + 4) pass the "floppy=nodma" option to the kernel + 5) pass the "mem=4M" option to the kernel (thereby disabling + all but the first 4 MB of RAM) + 6) make sure that the CPU is not over clocked. + 7) read the sig11 FAQ at <http://www.bitwizard.nl/sig11/> + 8) disable the cache from your BIOS settings + 9) install a fan for the video card or exchange video RAM + 10) install a better fan for the CPU + 11) exchange RAM chips + 12) exchange the motherboard. + + To compile this driver as a module, choose M here: the + module will be called apm. + +endmenu + +menu "Device Drivers" + +source "drivers/base/Kconfig" + +if ALIGNMENT_TRAP +source "drivers/mtd/Kconfig" +endif + +source "drivers/parport/Kconfig" + +source "drivers/pnp/Kconfig" + +source "drivers/block/Kconfig" + +source "drivers/acorn/block/Kconfig" + +if ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE +source "drivers/ide/Kconfig" +endif + +source "drivers/scsi/Kconfig" + +source "drivers/md/Kconfig" + +source "drivers/message/fusion/Kconfig" + +source "drivers/ieee1394/Kconfig" + +source "drivers/message/i2o/Kconfig" + +source "net/Kconfig" + +source "drivers/isdn/Kconfig" + +# input before char - char/joystick depends on it. As does USB. + +source "drivers/input/Kconfig" + +source "drivers/char/Kconfig" + +source "drivers/i2c/Kconfig" + +#source "drivers/l3/Kconfig" + +source "drivers/misc/Kconfig" + +source "drivers/media/Kconfig" + +source "drivers/video/Kconfig" + +source "sound/Kconfig" + +source "drivers/usb/Kconfig" + +source "drivers/mmc/Kconfig" + +endmenu + +source "fs/Kconfig" + +source "arch/arm/oprofile/Kconfig" + +source "arch/arm/Kconfig.debug" + +source "security/Kconfig" + +source "crypto/Kconfig" + +source "lib/Kconfig" |