Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

# $Id: config.in,v 1.113 2002/01/24 22:14:44 davem Exp $

# For a description of the syntax of this configuration file,

# see Documentation/kbuild/kconfig-language.txt.

#

mainmenu "Linux/SPARC Kernel Configuration"

config MMU

        bool

        default y

config HIGHMEM

        bool

        default y

config ZONE_DMA

        bool

        default y

config GENERIC_ISA_DMA

        bool

        default y

config ARCH_NO_VIRT_TO_BUS

        def_bool y

config OF

        def_bool y

source "init/Kconfig"

menu "General machine setup"

config SMP

        bool "Symmetric multi-processing support (does not work on sun4/sun4c)"

        ---help---

          This enables support for systems with more than one CPU. If you have

          a system with only one CPU, 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,

          singleprocessor machines. On a singleprocessor machine, the kernel

          will run faster if you say N here.

          People using multiprocessor machines who say Y here should also say

          Y to "Enhanced Real Time Clock Support", below. The "Advanced Power

          Management" code will be disabled if you say Y here.

          See also the ,

           and the SMP-HOWTO available at

          .

          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 "32"

config SPARC

        bool

        default y

# Identify this as a Sparc32 build

config SPARC32

        bool

        default y

        help

          SPARC is a family of RISC microprocessors designed and marketed by

          Sun Microsystems, incorporated.  They are very widely found in Sun

          workstations and clones. This port covers the original 32-bit SPARC;

          it is old and stable and usually considered one of the "big three"

          along with the Intel and Alpha ports.  The UltraLinux project

          maintains both the SPARC32 and SPARC64 ports; its web page is

          available at .

# Global things across all Sun machines.

config ISA

        bool

        help

          ISA is found on Espresso only and is not supported currently.

          Say N

config EISA

        bool

        help

          EISA is not supported.

          Say N

config MCA

        bool

        help

          MCA is not supported.

          Say N

config PCMCIA

        tristate

        ---help---

          Say Y here if you want to attach PCMCIA- or PC-cards to your Linux

          computer.  These are credit-card size devices such as network cards,

          modems or hard drives often used with laptops computers.  There are

          actually two varieties of these cards: the older 16 bit PCMCIA cards

          and the newer 32 bit CardBus cards.  If you want to use CardBus

          cards, you need to say Y here and also to "CardBus support" below.

          To use your PC-cards, you will need supporting software from David

          Hinds' pcmcia-cs package (see the file 

          for location).  Please also read the PCMCIA-HOWTO, available from

          .

          To compile this driver as modules, choose M here: the

          modules will be called pcmcia_core and ds.

config SBUS

        bool

        default y

config SBUSCHAR

        bool

        default y

config SERIAL_CONSOLE

        bool

        default y

        ---help---

          If you say Y here, it will be possible to use a serial port as the

          system console (the system console is the device which receives all

          kernel messages and warnings and which allows logins in single user

          mode). This could be useful if some terminal or printer is connected

          to that serial port.

          Even if you say Y here, the currently visible virtual console

          (/dev/tty0) will still be used as the system console by default, but

          you can alter that using a kernel command line option such as

          "console=ttyS1". (Try "man bootparam" or see the documentation of

          your boot loader (silo) about how to pass options to the kernel at

          boot time.)

          If you don't have a graphics card installed and you say Y here, the

          kernel will automatically use the first serial line, /dev/ttyS0, as

          system console.

          If unsure, say N.

config SUN_AUXIO

        bool

        default y

config SUN_IO

        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 y

config ARCH_MAY_HAVE_PC_FDC

        bool

        default y

config ARCH_HAS_ILOG2_U32

        bool

        default n

config ARCH_HAS_ILOG2_U64

        bool

        default n

config EMULATED_CMPXCHG

        bool

        default y

        help

          Sparc32 does not have a CAS instruction like sparc64. cmpxchg()

          is emulated, and therefore it is not completely atomic.

config SUN_PM

        bool

        default y

        help

          Enable power management and CPU standby features on supported

          SPARC platforms.

config SUN4

        bool "Support for SUN4 machines (disables SUN4[CDM] support)"

        depends on !SMP

        default n

        help

          Say Y here if, and only if, your machine is a sun4. Note that

          a kernel compiled with this option will run only on sun4.

          (And the current version will probably work only on sun4/330.)

if !SUN4

config PCI

        bool "Support for PCI and PS/2 keyboard/mouse"

        help

          CONFIG_PCI is needed for all JavaStation's (including MrCoffee),

          CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.

          All of these platforms are extremely obscure, so say N if unsure.

config PCI_SYSCALL

        def_bool PCI

source "drivers/pci/Kconfig"

endif

config NO_DMA

        def_bool !PCI

config SUN_OPENPROMFS

        tristate "Openprom tree appears in /proc/openprom"

        help

          If you say Y, the OpenPROM device tree will be available as a

          virtual file system, which you can mount to /proc/openprom by "mount

          -t openpromfs none /proc/openprom".

          To compile the /proc/openprom support as a module, choose M here: the

          module will be called openpromfs.

          Only choose N if you know in advance that you will not need to modify

          OpenPROM settings on the running system.

config SPARC_LED

        tristate "Sun4m LED driver"

        help

          This driver toggles the front-panel LED on sun4m systems

          in a user-specifiable manner.  Its state can be probed

          by reading /proc/led and its blinking mode can be changed

          via writes to /proc/led

source "fs/Kconfig.binfmt"

config SUNOS_EMUL

        bool "SunOS binary emulation"

        help

          This allows you to run most SunOS binaries.  If you want to do this,

          say Y here and place appropriate files in /usr/gnemul/sunos. See

           for more information.  If you

          want to run SunOS binaries on an Ultra you must also say Y to

          "Kernel support for 32-bit a.out binaries" above.

source "mm/Kconfig"

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

if !SUN4

source "drivers/sbus/char/Kconfig"

endif

# This one must be before the filesystem configs. -DaveM

menu "Unix98 PTY support"

config UNIX98_PTYS

        bool "Unix98 PTY support"

        ---help---

          A pseudo terminal (PTY) is a software device consisting of two

          halves: a master and a slave. The slave device behaves identical to

          a physical terminal; the master device is used by a process to

          read data from and write data to the slave, thereby emulating a

          terminal. Typical programs for the master side are telnet servers

          and xterms.

          Linux has traditionally used the BSD-like names /dev/ptyxx for

          masters and /dev/ttyxx for slaves of pseudo terminals. This scheme

          has a number of problems. The GNU C library glibc 2.1 and later,

          however, supports the Unix98 naming standard: in order to acquire a

          pseudo terminal, a process opens /dev/ptmx; the number of the pseudo

          terminal is then made available to the process and the pseudo

          terminal slave can be accessed as /dev/pts/. What was

          traditionally /dev/ttyp2 will then be /dev/pts/2, for example.

          The entries in /dev/pts/ are created on the fly by a virtual

          file system; therefore, if you say Y here you should say Y to

          "/dev/pts file system for Unix98 PTYs" as well.

          If you want to say Y here, you need to have the C library glibc 2.1

          or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").

          Read the instructions in  pertaining to

          pseudo terminals. It's safe to say N.

config UNIX98_PTY_COUNT

        int "Maximum number of Unix98 PTYs in use (0-2048)"

        depends on UNIX98_PTYS

        default "256"

        help

          The maximum number of Unix98 PTYs that can be used at any one time.

          The default is 256, and should be enough for desktop systems. Server

          machines which support incoming telnet/rlogin/ssh connections and/or

          serve several X terminals may want to increase this: every incoming

          connection and every xterm uses up one PTY.

          When not in use, each additional set of 256 PTYs occupy

          approximately 8 KB of kernel memory on 32-bit architectures.

endmenu

source "fs/Kconfig"

source "kernel/Kconfig.instrumentation"

source "arch/sparc/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"