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