1 # For a description of the syntax of this configuration file,
2 # see Documentation/kbuild/kconfig-language.txt.
5 mainmenu "Linux/SPARC Kernel Configuration"
19 config GENERIC_ISA_DMA
26 Generic GPIO API support
28 config ARCH_NO_VIRT_TO_BUS
40 source "kernel/Kconfig.freezer"
42 menu "General machine setup"
45 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
47 This enables support for systems with more than one CPU. If you have
48 a system with only one CPU, say N. If you have a system with more
51 If you say N here, the kernel will run on single and multiprocessor
52 machines, but will use only one CPU of a multiprocessor machine. If
53 you say Y here, the kernel will run on many, but not all,
54 singleprocessor machines. On a singleprocessor machine, the kernel
55 will run faster if you say N here.
57 People using multiprocessor machines who say Y here should also say
58 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
59 Management" code will be disabled if you say Y here.
61 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
62 available at <http://www.tldp.org/docs.html#howto>.
64 If you don't know what to do here, say N.
67 int "Maximum number of CPUs (2-32)"
77 select HAVE_ARCH_KGDB if !SMP
78 select HAVE_ARCH_TRACEHOOK
79 select ARCH_WANT_OPTIONAL_GPIOLIB
83 # Identify this as a Sparc32 build
88 SPARC is a family of RISC microprocessors designed and marketed by
89 Sun Microsystems, incorporated. They are very widely found in Sun
90 workstations and clones. This port covers the original 32-bit SPARC;
91 it is old and stable and usually considered one of the "big three"
92 along with the Intel and Alpha ports. The UltraLinux project
93 maintains both the SPARC32 and SPARC64 ports; its web page is
94 available at <http://www.ultralinux.org/>.
96 # Global things across all Sun machines.
100 ISA is found on Espresso only and is not supported currently.
106 EISA is not supported.
112 MCA is not supported.
118 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
119 computer. These are credit-card size devices such as network cards,
120 modems or hard drives often used with laptops computers. There are
121 actually two varieties of these cards: the older 16 bit PCMCIA cards
122 and the newer 32 bit CardBus cards. If you want to use CardBus
123 cards, you need to say Y here and also to "CardBus support" below.
125 To use your PC-cards, you will need supporting software from David
126 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
127 for location). Please also read the PCMCIA-HOWTO, available from
128 <http://www.tldp.org/docs.html#howto>.
130 To compile this driver as modules, choose M here: the
131 modules will be called pcmcia_core and ds.
141 config SERIAL_CONSOLE
145 If you say Y here, it will be possible to use a serial port as the
146 system console (the system console is the device which receives all
147 kernel messages and warnings and which allows logins in single user
148 mode). This could be useful if some terminal or printer is connected
151 Even if you say Y here, the currently visible virtual console
152 (/dev/tty0) will still be used as the system console by default, but
153 you can alter that using a kernel command line option such as
154 "console=ttyS1". (Try "man bootparam" or see the documentation of
155 your boot loader (silo) about how to pass options to the kernel at
158 If you don't have a graphics card installed and you say Y here, the
159 kernel will automatically use the first serial line, /dev/ttyS0, as
172 config RWSEM_GENERIC_SPINLOCK
176 config RWSEM_XCHGADD_ALGORITHM
179 config GENERIC_FIND_NEXT_BIT
183 config GENERIC_HWEIGHT
187 config GENERIC_CALIBRATE_DELAY
191 config ARCH_MAY_HAVE_PC_FDC
195 config ARCH_HAS_ILOG2_U32
199 config ARCH_HAS_ILOG2_U64
203 config EMULATED_CMPXCHG
207 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
208 is emulated, and therefore it is not completely atomic.
214 Enable power management and CPU standby features on supported
218 bool "Support for PCI and PS/2 keyboard/mouse"
220 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
221 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
222 All of these platforms are extremely obscure, so say N if unsure.
227 source "drivers/pci/Kconfig"
229 config SUN_OPENPROMFS
230 tristate "Openprom tree appears in /proc/openprom"
232 If you say Y, the OpenPROM device tree will be available as a
233 virtual file system, which you can mount to /proc/openprom by "mount
234 -t openpromfs none /proc/openprom".
236 To compile the /proc/openprom support as a module, choose M here: the
237 module will be called openpromfs.
239 Only choose N if you know in advance that you will not need to modify
240 OpenPROM settings on the running system.
243 tristate "Sun4m LED driver"
245 This driver toggles the front-panel LED on sun4m systems
246 in a user-specifiable manner. Its state can be probed
247 by reading /proc/led and its blinking mode can be changed
248 via writes to /proc/led
250 source "fs/Kconfig.binfmt"
258 source "drivers/Kconfig"
260 source "drivers/sbus/char/Kconfig"
262 # This one must be before the filesystem configs. -DaveM
264 menu "Unix98 PTY support"
267 bool "Unix98 PTY support"
269 A pseudo terminal (PTY) is a software device consisting of two
270 halves: a master and a slave. The slave device behaves identical to
271 a physical terminal; the master device is used by a process to
272 read data from and write data to the slave, thereby emulating a
273 terminal. Typical programs for the master side are telnet servers
276 Linux has traditionally used the BSD-like names /dev/ptyxx for
277 masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
278 has a number of problems. The GNU C library glibc 2.1 and later,
279 however, supports the Unix98 naming standard: in order to acquire a
280 pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
281 terminal is then made available to the process and the pseudo
282 terminal slave can be accessed as /dev/pts/<number>. What was
283 traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
285 The entries in /dev/pts/ are created on the fly by a virtual
286 file system; therefore, if you say Y here you should say Y to
287 "/dev/pts file system for Unix98 PTYs" as well.
289 If you want to say Y here, you need to have the C library glibc 2.1
290 or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
291 Read the instructions in <file:Documentation/Changes> pertaining to
292 pseudo terminals. It's safe to say N.
298 source "arch/sparc/Kconfig.debug"
300 source "security/Kconfig"
302 source "crypto/Kconfig"