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 <file:Documentation/smp.txt>,
          <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
          <http://www.tldp.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 "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 <http://www.ultralinux.org/>.

# 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 <file:Documentation/Changes>
          for location).  Please also read the PCMCIA-HOWTO, available from
          <http://www.tldp.org/docs.html#howto>.

          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
          <http://www.ultralinux.org/faq.html> 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/<number>. 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 <file:Documentation/Changes> 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"