4 # Horrible source of confusion. Die, die, die ...
10 Select this option if you want to build a 64-bit kernel. You should
11 only select this option if you have hardware that actually has a
12 64-bit processor and if your application will actually benefit from
13 64-bit processing, otherwise say N. You must say Y for kernels for
14 SGI IP27 (Origin 200 and 2000). If in doubt say N.
21 depends on MIPS64 = 'n'
24 mainmenu "Linux/MIPS Kernel Configuration"
28 menu "Machine selection"
31 bool "Support for the Jazz family of machines"
34 This a family of machines based on the MIPS R4030 chipset which was
35 used by several vendors to build RISC/os and Windows NT workstations.
36 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
37 Olivetti M700-10 workstations.
40 bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
41 depends on MACH_JAZZ && EXPERIMENTAL
42 select DMA_NONCOHERENT
44 This is a machine with a R4400 133/150 MHz CPU. To compile a Linux
45 kernel that runs on these, say Y here. For details about Linux on
46 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
47 <http://www.linux-mips.org/>.
49 config MIPS_MAGNUM_4000
50 bool "Support for MIPS Magnum 4000"
52 select DMA_NONCOHERENT
54 This is a machine with a R4000 100 MHz CPU. To compile a Linux
55 kernel that runs on these, say Y here. For details about Linux on
56 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
57 <http://www.linux-mips.org/>.
60 bool "Support for Olivetti M700-10"
62 select DMA_NONCOHERENT
64 This is a machine with a R4000 100 MHz CPU. To compile a Linux
65 kernel that runs on these, say Y here. For details about Linux on
66 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
67 <http://www.linux-mips.org/>.
70 bool "Support for BAGET MIPS series (EXPERIMENTAL)"
71 depends on MIPS32 && EXPERIMENTAL
73 This enables support for the Baget, a Russian embedded system. For
74 more details about the Baget see the Linux/MIPS FAQ on
75 <http://www.linux-mips.org/>.
78 bool "Support for NEC VR41XX-based machines"
81 bool "Support for CASIO CASSIOPEIA E-10/15/55/65"
82 depends on MACH_VR41XX
83 select DMA_NONCOHERENT
88 bool "Support for IBM WorkPad z50"
89 depends on MACH_VR41XX
90 select DMA_NONCOHERENT
95 bool "Support for TANBAC TB0226 (Mbase)"
96 depends on MACH_VR41XX
97 select DMA_NONCOHERENT
101 The TANBAC TB0226 (Mbase) is a MIPS-based platform manufactured by TANBAC.
102 Please refer to <http://www.tanbac.co.jp/> about Mbase.
105 bool "Support for TANBAC TB0229 (VR4131DIMM)"
106 depends on MACH_VR41XX
107 select DMA_NONCOHERENT
111 The TANBAC TB0229 (VR4131DIMM) is a MIPS-based platform manufactured by TANBAC.
112 Please refer to <http://www.tanbac.co.jp/> about VR4131DIMM.
115 bool "Support for Victor MP-C303/304"
116 select DMA_NONCOHERENT
119 depends on MACH_VR41XX
122 bool "Support for ZAO Networks Capcella"
123 depends on MACH_VR41XX
124 select DMA_NONCOHERENT
129 bool "Add PCI control unit support of NEC VR4100 series"
130 depends on MACH_VR41XX && PCI
133 tristate "Add NEC VRC4171 companion chip support"
134 depends on MACH_VR41XX && ISA
136 The NEC VRC4171/4171A is a companion chip for NEC VR4111/VR4121.
139 tristate "Add NEC VRC4173 companion chip support"
140 depends on MACH_VR41XX && PCI_VR41XX
142 The NEC VRC4173 is a companion chip for NEC VR4122/VR4131.
144 config TOSHIBA_JMR3927
145 bool "Support for Toshiba JMR-TX3927 board"
147 select DMA_NONCOHERENT
151 bool "Support for Cobalt Server (EXPERIMENTAL)"
152 depends on EXPERIMENTAL
153 select DMA_NONCOHERENT
157 config MACH_DECSTATION
158 bool "Support for DECstations"
159 select DMA_NONCOHERENT
161 depends on MIPS32 || EXPERIMENTAL
163 This enables support for DEC's MIPS based workstations. For details
164 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
165 DECstation porting pages on <http://decstation.unix-ag.org/>.
167 If you have one of the following DECstation Models you definitely
168 want to choose R4xx0 for the CPU Type:
175 otherwise choose R3000.
178 bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
179 depends on EXPERIMENTAL
180 select DMA_NONCOHERENT
183 This is an evaluation board based on the Galileo GT-64120
184 single-chip system controller that contains a MIPS R5000 compatible
185 core running at 75/100MHz. Their website is located at
186 <http://www.marvell.com/>. Say Y here if you wish to build a
187 kernel for this platform.
190 bool "Enable Second PCI (PCI1)"
191 depends on MIPS_EV64120
194 bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)"
195 depends on EXPERIMENTAL
196 select DMA_NONCOHERENT
200 select RM7000_CPU_SCACHE
202 This is an evaluation board based on the Galileo GT-96100 LAN/WAN
203 communications controllers containing a MIPS R5000 compatible core
204 running at 83MHz. Their website is <http://www.marvell.com/>. Say Y
205 here if you wish to build a kernel for this platform.
208 bool "Support for Globespan IVR board"
209 select DMA_NONCOHERENT
212 This is an evaluation board built by Globespan to showcase thir
213 iVR (Internet Video Recorder) design. It utilizes a QED RM5231
214 R5000 MIPS core. More information can be found out their website
215 located at <http://www.globespan.net/>. Say Y here if you wish to
216 build a kernel for this platform.
219 bool "Support for LASAT Networks platforms"
220 select DMA_NONCOHERENT
222 select R5000_CPU_SCACHE
225 tristate "PICVUE LCD display driver"
229 tristate "PICVUE LCD display driver /proc interface"
233 bool "DS1603 RTC driver"
237 bool "LASAT sysctl interface"
241 bool "Support for Hewlett Packard LaserJet board"
243 select DMA_NONCOHERENT
248 bool "Support for ITE 8172G board"
249 select DMA_NONCOHERENT
252 Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
253 with ATX form factor that utilizes a MIPS R5000 to work with its
254 ITE8172G companion internet appliance chip. The MIPS core can be
255 either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build
256 a kernel for this platform.
259 bool "Support for older IT8172 (Rev C)"
260 depends on MIPS_ITE8172
262 Say Y here to support the older, Revision C version of the Integrated
263 Technology Express, Inc. ITE8172 SBC. Vendor page at
264 <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
265 board at <http://www.mvista.com/partners/semiconductor/ite.html>.
268 bool "Support for MIPS Atlas board"
269 select DMA_NONCOHERENT
272 This enables support for the QED R5231-based MIPS Atlas evaluation
276 bool "Support for MIPS Malta board"
277 select HAVE_STD_PC_SERIAL_PORT
278 select DMA_NONCOHERENT
281 This enables support for the VR5000-based MIPS Malta evaluation
285 bool "Support for MIPS SEAD board (EXPERIMENTAL)"
286 depends on EXPERIMENTAL
288 select DMA_NONCOHERENT
290 config MOMENCO_OCELOT
291 bool "Support for Momentum Ocelot board"
292 select DMA_NONCOHERENT
296 select RM7000_CPU_SCACHE
298 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
299 Momentum Computer <http://www.momenco.com/>.
301 config MOMENCO_OCELOT_G
302 bool "Support for Momentum Ocelot-G board"
303 select DMA_NONCOHERENT
308 select RM7000_CPU_SCACHE
310 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
311 Momentum Computer <http://www.momenco.com/>.
313 config MOMENCO_OCELOT_C
314 bool "Support for Momentum Ocelot-C board"
315 select DMA_NONCOHERENT
320 select RM7000_CPU_SCACHE
322 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
323 Momentum Computer <http://www.momenco.com/>.
325 config MOMENCO_JAGUAR_ATX
326 bool "Support for Momentum Jaguar board"
327 select DMA_NONCOHERENT
334 select RM7000_CPU_SCACHE
336 The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
337 Momentum Computer <http://www.momenco.com/>.
341 depends on MOMENCO_JAGUAR_ATX
343 Select to Y if jump JP5 is set on your board, N otherwise. Normally
344 the jumper is set, so if you feel unsafe, just say Y.
347 bool "Support for PMC-Sierra Yosemite eval board"
353 Yosemite is an evaluation board for the RM9000x2 processor
354 manufactured by PMC-Sierra
356 config HYPERTRANSPORT
357 bool "Hypertransport Support for PMC-Sierra Yosemite"
358 depends on PMC_YOSEMITE
361 bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)"
362 depends on EXPERIMENTAL
363 select DMA_NONCOHERENT
364 select HAVE_STD_PC_SERIAL_PORT
369 This enables support for the VR5000-based NEC DDB Vrc-5074
373 bool "Support for NEC DDB Vrc-5476"
374 select DMA_NONCOHERENT
375 select HAVE_STD_PC_SERIAL_PORT
380 This enables support for the R5432-based NEC DDB Vrc-5476
383 Features : kernel debugging, serial terminal, NFS root fs, on-board
384 ether port USB, AC97, PCI, PCI VGA card & framebuffer console,
385 IDE controller, PS2 keyboard, PS2 mouse, etc.
388 bool "Support for NEC DDB Vrc-5477"
389 select DMA_NONCOHERENT
393 This enables support for the R5432-based NEC DDB Vrc-5477,
394 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
396 Features : kernel debugging, serial terminal, NFS root fs, on-board
397 ether port USB, AC97, PCI, etc.
399 config DDB5477_BUS_FREQUENCY
400 int "bus frequency (in kHZ, 0 for auto-detect)"
405 bool "Support for NEC Osprey board"
406 select DMA_NONCOHERENT
410 bool "Support for SGI IP22 (Indy/Indigo2)"
411 select DMA_NONCOHERENT
412 select IP22_CPU_SCACHE
415 This are the SGI Indy, Challenge S and Indigo2, as well as certain
416 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
417 that runs on these, say Y here.
420 bool "Support for SGI IP27 (Origin200/2000)"
425 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
426 workstations. To compile a Linux kernel that runs on these, say Y
431 # depends on SGI_IP27
432 # This options adds support for userspace processes upto 16TB size.
433 # Normally the limit is just .5TB.
435 config SGI_SN0_N_MODE
439 The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be
440 configured in either N-Modes which allows for more nodes or M-Mode
441 which allows for more memory. Your system is most probably
442 running in M-Mode, so you should say N here.
446 default y if SGI_IP27
448 Say Y to upport efficient handling of discontiguous physical memory,
449 for architectures which are either NUMA (Non-Uniform Memory Access)
450 or have huge holes in the physical address space for other reasons.
451 See <file:Documentation/vm/numa> for more.
457 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
458 Access). This option is for configuring high-end multiprocessor
459 server machines. If in doubt, say N.
462 bool "Mapped kernel support"
465 Change the way a Linux kernel is loaded unto memory on a MIPS64
466 machine. This is required in order to support text replication and
467 NUMA. If you need to undersatand it, read the source code.
469 config REPLICATE_KTEXT
470 bool "Kernel text replication support"
473 Say Y here to enable replicating the kernel text across multiple
474 nodes in a NUMA cluster. This trades memory for speed.
476 config REPLICATE_EXHANDLERS
477 bool "Exception handler replication support"
480 Say Y here to enable replicating the kernel exception handlers
481 across multiple nodes in a NUMA cluster. This trades memory for
485 bool "Support for SGI IP32 (O2) (EXPERIMENTAL)"
486 depends on EXPERIMENTAL
487 select DMA_NONCOHERENT
489 select R5000_CPU_SCACHE
490 select RM7000_CPU_SCACHE
492 If you want this kernel to run on SGI O2 workstation, say Y here.
496 bool "Support for AMD/Alchemy Au1X00 SOCs"
499 prompt "Au1X00 SOC Type"
500 depends on SOC_AU1X00
502 Say Y here to enable support for one of three AMD/Alchemy
503 SOCs. For additional documentation see www.amd.com.
517 prompt "AMD/Alchemy Au1x00 board support"
518 depends on SOC_AU1X00
520 These are evaluation boards built by AMD/Alchemy to
521 showcase their Au1X00 Internet Edge Processors. The SOC design
522 is based on the MIPS32 architecture running at 266/400/500MHz
523 with many integrated peripherals. Further information can be
524 found at their website, <http://www.amd.com/>. Say Y here if you
525 wish to build a kernel for this platform.
529 depends on SOC_AU1000
530 select DMA_NONCOHERENT
535 depends on SOC_AU1100
536 select DMA_NONCOHERENT
541 depends on SOC_AU1500
542 select DMA_NONCOHERENT
547 depends on SOC_AU1550
548 select DMA_NONCOHERENT
553 depends on SOC_AU1000
554 select DMA_NONCOHERENT
559 depends on SOC_AU1100
560 select DMA_NONCOHERENT
564 depends on SOC_AU1500
565 select DMA_NONCOHERENT
570 depends on SOC_AU1550
574 bool "Bosporus board"
575 depends on SOC_AU1500
576 select DMA_NONCOHERENT
580 depends on SOC_AU1500
581 select DMA_NONCOHERENT
584 bool "MyCable XXS1500 board"
585 depends on SOC_AU1500
586 select DMA_NONCOHERENT
589 bool "4G Systems MTX-1 board"
590 depends on SOC_AU1500
591 select DMA_NONCOHERENT
595 config SIBYTE_SB1xxx_SOC
596 bool "Support for Broadcom BCM1xxx SOCs (EXPERIMENTAL)"
597 depends on EXPERIMENTAL
601 prompt "BCM1xxx SOC-based board"
602 depends on SIBYTE_SB1xxx_SOC
605 Enable support for boards based on the SiByte line of SOCs
606 from Broadcom. There are configurations for the known
607 evaluation boards, or you can choose "Other" and add your
608 own board support code.
611 bool "BCM91250A-SWARM"
614 config SIBYTE_SENTOSA
615 bool "BCM91250E-Sentosa"
619 bool "BCM91125E-Rhone"
620 select SIBYTE_BCM1125H
623 bool "BCM91120x-Carmel"
624 select SIBYTE_BCM1120
626 config SIBYTE_PTSWARM
627 bool "BCM91250PT-PTSWARM"
630 config SIBYTE_LITTLESUR
631 bool "BCM91250C2-LittleSur"
635 bool "BCM91120C-CRhine"
636 select SIBYTE_BCM1120
639 bool "BCM91125C-CRhone"
640 select SIBYTE_BCM1125
642 config SIBYTE_UNKNOWN
649 depends on SIBYTE_SB1xxx_SOC && !SIBYTE_UNKNOWN
653 prompt "BCM1xxx SOC Type"
654 depends on SIBYTE_UNKNOWN
655 default SIBYTE_UNK_BCM1250
657 Since you haven't chosen a known evaluation board from
658 Broadcom, you must explicitly pick the SOC this kernel is
661 config SIBYTE_UNK_BCM1250
665 config SIBYTE_UNK_BCM1120
667 select SIBYTE_BCM1120
669 config SIBYTE_UNK_BCM1125
671 select SIBYTE_BCM1125
673 config SIBYTE_UNK_BCM1125H
675 select SIBYTE_BCM1125H
683 config SIBYTE_BCM1120
685 select SIBYTE_BCM112X
687 config SIBYTE_BCM1125
690 select SIBYTE_BCM112X
692 config SIBYTE_BCM1125H
695 select SIBYTE_BCM112X
697 config SIBYTE_BCM112X
701 prompt "SiByte SOC Stepping"
702 depends on SIBYTE_SB1xxx_SOC
704 config CPU_SB1_PASS_1
706 depends on SIBYTE_SB1250
708 config CPU_SB1_PASS_2_1250
710 depends on SIBYTE_SB1250
711 select CPU_SB1_PASS_2
713 Also called BCM1250 Pass 2
715 config CPU_SB1_PASS_2_2
717 depends on SIBYTE_SB1250
719 Also called BCM1250 Pass 2.2
721 config CPU_SB1_PASS_4
723 depends on SIBYTE_SB1250
725 Also called BCM1250 Pass 3
727 config CPU_SB1_PASS_2_112x
729 depends on SIBYTE_BCM112X
730 select CPU_SB1_PASS_2
732 config CPU_SB1_PASS_3
734 depends on SIBYTE_BCM112X
738 config CPU_SB1_PASS_2
741 config SIBYTE_HAS_LDT
743 depends on PCI && (SIBYTE_SB1250 || SIBYTE_BCM1125H)
747 bool "Running under simulation"
748 depends on SIBYTE_SB1xxx_SOC
750 Build a kernel suitable for running under the GDB simulator.
751 Primarily adjusts the kernel's notion of time.
754 bool "Booting from CFE"
755 depends on SIBYTE_SB1xxx_SOC
757 Make use of the CFE API for enumerating available memory,
758 controlling secondary CPUs, and possibly console output.
760 config SIBYTE_CFE_CONSOLE
761 bool "Use firmware console"
762 depends on SIBYTE_CFE
764 Use the CFE API's console write routines during boot. Other console
765 options (VT console, sb1250 duart console, etc.) should not be
768 config SIBYTE_STANDALONE
770 depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
773 config SIBYTE_STANDALONE_RAM_SIZE
774 int "Memory size (in megabytes)"
775 depends on SIBYTE_STANDALONE
778 config SIBYTE_BUS_WATCHER
779 bool "Support for Bus Watcher statistics"
780 depends on SIBYTE_SB1xxx_SOC
782 Handle and keep statistics on the bus error interrupts (COR_ECC,
785 config SIBYTE_BW_TRACE
786 bool "Capture bus trace before bus error"
787 depends on SIBYTE_BUS_WATCHER
789 Run a continuous bus trace, dumping the raw data as soon as
790 a ZBbus error is detected. Cannot work if ZBbus profiling
791 is turned on, and also will interfere with JTAG-based trace
792 buffer activity. Raw buffer data is dumped to console, and
793 must be processed off-line.
795 config SIBYTE_SB1250_PROF
796 bool "Support for SB1/SOC profiling - SB1/SCD perf counters"
797 depends on SIBYTE_SB1xxx_SOC
800 bool "Support for ZBbus profiling"
801 depends on SIBYTE_SB1xxx_SOC
804 bool "Support for SNI RM200 PCI"
805 select DMA_NONCOHERENT
806 select HAVE_STD_PC_SERIAL_PORT
810 The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
811 Nixdorf Informationssysteme (SNI), parent company of Pyramid
812 Technology and now in turn merged with Fujitsu. Say Y here to
813 support this machine type.
815 config TOSHIBA_RBTX4927
816 bool "Support for Toshiba TBTX49[23]7 board"
818 select DMA_NONCOHERENT
822 config RWSEM_GENERIC_SPINLOCK
826 config RWSEM_XCHGADD_ALGORITHM
834 # Select some configuration options automatically based on user selections.
838 depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP27 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
847 config DMA_NONCOHERENT
852 depends on MACH_DECSTATION
855 config GENERIC_ISA_DMA
857 depends on SNI_RM200_PCI || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61 || MIPS_MALTA
862 depends on SNI_RM200_PCI || DDB5477 || DDB5476 || DDB5074 || MACH_JAZZ || MIPS_MALTA || MIPS_COBALT
871 depends on MIPS_ATLAS || MIPS_MALTA
876 depends on MIPS_ATLAS || MIPS_MALTA
884 config CPU_LITTLE_ENDIAN
885 bool "Generate little endian code"
886 default y if ACER_PICA_61 || CASIO_E55 || DDB5074 || DDB5476 || DDB5477 || MACH_DECSTATION || HP_LASERJET || IBM_WORKPAD || LASAT || MIPS_COBALT || MIPS_ITE8172 || MIPS_IVR || SOC_AU1X00 || NEC_OSPREY || OLIVETTI_M700 || SNI_RM200_PCI || VICTOR_MPC30X || ZAO_CAPCELLA
887 default n if BAGET_MIPS || MIPS_EV64120 || MIPS_EV96100 || MOMENCO_OCELOT || MOMENCO_OCELOT_G || SGI_IP22 || SGI_IP27 || SGI_IP32 || TOSHIBA_JMR3927
889 Some MIPS machines can be configured for either little or big endian
890 byte order. These modes require different kernels. Say Y if your
891 machine is little endian, N if it's a big endian machine.
902 config DDB5XXX_COMMON
904 depends on DDB5074 || DDB5476 || DDB5477
907 config MIPS_BOARDS_GEN
909 depends on MIPS_ATLAS || MIPS_MALTA || MIPS_SEAD
914 depends on MIPS_COBALT
919 depends on MIPS_EV64120 || MIPS_EV96100 || LASAT || MIPS_ATLAS || MIPS_MALTA || MOMENCO_OCELOT
924 depends on TOSHIBA_JMR3927
932 depends on MIPS_IVR || MIPS_ITE8172
937 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927 || SIBYTE_SB1xxx_SOC || SGI_IP22 || MOMENCO_OCELOT_C || MOMENCO_OCELOT_G || MOMENCO_OCELOT || MOMENCO_JAGUAR_ATX || MIPS_MALTA || MIPS_ATLAS || MIPS_EV96100 || MIPS_PB1100 || MIPS_PB1000
941 # Unfortunately not all GT64120 systems run the chip at the same clock.
942 # As the user for the clock rate and try to minimize the available options.
945 prompt "Galileo Chip Clock"
946 #default SYSCLK_83 if MIPS_EV64120
947 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
948 default SYSCLK_83 if MIPS_EV64120
949 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
952 bool "75" if MIPS_EV64120
955 bool "83.3" if MIPS_EV64120
958 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
962 config AU1000_USB_DEVICE
964 depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
969 depends on MIPS_EV96100
972 Say Y here to support the Galileo Technology GT96100 communications
973 controller card. There is a web page at <http://www.galileot.com/>.
977 depends on MIPS_ITE8172 || MIPS_IVR
982 depends on MIPS_ITE8172
987 depends on MACH_DECSTATION || MIPS_ATLAS || MIPS_MALTA || MOMENCO_JAGUAR_ATX || SIBYTE_SB1xxx_SOC || SGI_IP32 || SGI_IP22 || SNI_RM200_PCI
990 config MIPS_L1_CACHE_SHIFT
992 default "4" if MACH_DECSTATION
993 default "7" if SGI_IP27
998 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1003 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
1006 The frame buffer device provides an abstraction for the graphics
1007 hardware. It represents the frame buffer of some video hardware and
1008 allows application software to access the graphics hardware through
1009 a well-defined interface, so the software doesn't need to know
1010 anything about the low-level (hardware register) stuff.
1012 Frame buffer devices work identically across the different
1013 architectures supported by Linux and make the implementation of
1014 application programs easier and more portable; at this point, an X
1015 server exists which uses the frame buffer device exclusively.
1016 On several non-X86 architectures, the frame buffer device is the
1017 only way to use the graphics hardware.
1019 The device is accessed through special device nodes, usually located
1020 in the /dev directory, i.e. /dev/fb*.
1022 You need an utility program called fbset to make full use of frame
1023 buffer devices. Please read <file:Documentation/fb/framebuffer.txt>
1024 and the Framebuffer-HOWTO at <http://www.tldp.org/docs.html#howto>
1025 for more information.
1027 Say Y here and to the driver for your graphics board below if you
1028 are compiling a kernel for a non-x86 architecture.
1030 If you are compiling for the x86 architecture, you can say Y if you
1031 want to play with it, but it is not essential. Please note that
1032 running graphical applications that directly touch the hardware
1033 (e.g. an accelerated X server) and that are not frame buffer
1034 device-aware may cause unexpected results. If unsure, say N.
1038 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
1041 config HAVE_STD_PC_SERIAL_PORT
1046 depends on NEC_OSPREY
1050 bool "ARC console support"
1051 depends on SGI_IP22 || SNI_RM200_PCI
1055 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP32
1060 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1073 #config MAPPED_PCI_IO y
1075 # depends on SGI_IP27
1083 config TOSHIBA_BOARDS
1085 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1088 config TANBAC_TB0219
1089 bool "Added TANBAC TB0219 Base board support"
1090 depends on TANBAC_TB0229
1095 menu "CPU selection"
1111 Please make sure to pick the right CPU type. Linux/MIPS is not
1112 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1113 *not* work on R4000 machines and vice versa. However, since most
1114 of the supported machines have an R4000 (or similar) CPU, R4x00
1115 might be a safe bet. If the resulting kernel does not work,
1116 try to recompile with R3000.
1125 The options selects support for the NEC VR41xx series of processors.
1126 Only choose this option if you have one of these processors as a
1127 kernel built with this option will not run on any other type of
1128 processor or vice versa.
1133 MIPS Technologies R4300-series processors.
1138 MIPS Technologies R4000-series processors other than 4300, including
1139 the R4000, R4400, R4600, and 4700.
1147 MIPS Technologies R5000-series processors other than the Nevada.
1154 depends on MIPS32 && EXPERIMENTAL
1156 MIPS Technologies R6000 and R6000A series processors. Note these
1157 processors are extremly rare and the support for them is incomplete.
1162 MIPS Technologies R52x0-series ("Nevada") processors.
1166 depends on MIPS64 && EXPERIMENTAL
1168 MIPS Technologies R8000 processors. Note these processors are
1169 uncommon and the support for them is incomplete.
1174 MIPS Technologies R10000-series processors.
1188 prompt "Kernel page size"
1189 default PAGE_SIZE_4KB
1191 config PAGE_SIZE_4KB
1194 This option select the standard 4kB Linux page size. On some
1195 R3000-family processors this is the only available page size. Using
1196 4kB page size will minimize memory consumption and is therefore
1197 recommended for low memory systems.
1199 config PAGE_SIZE_8KB
1201 depends on EXPERIMENTAL && CPU_R8000
1203 Using 8kB page size will result in higher performance kernel at
1204 the price of higher memory consumption. This option is available
1205 only on the R8000 processor. Not that at the time of this writing
1206 this option is still high experimental; there are also issues with
1207 compatibility of user applications.
1209 config PAGE_SIZE_16KB
1211 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1213 Using 16kB page size will result in higher performance kernel at
1214 the price of higher memory consumption. This option is available on
1215 all non-R3000 family processor. Not that at the time of this
1216 writing this option is still high experimental; there are also
1217 issues with compatibility of user applications.
1219 config PAGE_SIZE_64KB
1221 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1223 Using 64kB page size will result in higher performance kernel at
1224 the price of higher memory consumption. This option is available on
1225 all non-R3000 family processor. Not that at the time of this
1226 writing this option is still high experimental; there are also
1227 issues with compatibility of user applications.
1234 config IP22_CPU_SCACHE
1238 config R5000_CPU_SCACHE
1242 config RM7000_CPU_SCACHE
1246 config SIBYTE_DMA_PAGEOPS
1247 bool "Use DMA to clear/copy pages"
1250 Instead of using the CPU to zero and copy pages, use a Data Mover
1251 channel. These DMA channels are otherwise unused by the standard
1252 SiByte Linux port. Seems to give a small performance benefit.
1254 config CPU_HAS_PREFETCH
1255 bool "Enable prefetches" if CPU_SB1 && !CPU_SB1_PASS_2
1256 default y if CPU_MIPS32 || CPU_MIPS64 || CPU_RM7000 || CPU_RM9000 || CPU_R10000
1259 bool "Support for Virtual Tagged I-cache" if CPU_MIPS64 || CPU_MIPS32
1260 default y if CPU_SB1
1262 config SB1_PASS_1_WORKAROUNDS
1264 depends on CPU_SB1_PASS_1
1267 config SB1_PASS_2_WORKAROUNDS
1269 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1272 config SB1_PASS_2_1_WORKAROUNDS
1274 depends on CPU_SB1 && CPU_SB1_PASS_2
1277 config 64BIT_PHYS_ADDR
1278 bool "Support for 64-bit physical address space"
1279 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && MIPS32
1282 bool "Override CPU Options"
1285 Saying yes here allows you to select support for various features
1286 your CPU may or may not have. Most people should say N here.
1289 bool "ll/sc Instructions available" if CPU_ADVANCED
1290 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX
1292 MIPS R4000 series and later provide the Load Linked (ll)
1293 and Store Conditional (sc) instructions. More information is
1294 available at <http://www.go-ecs.com/mips/miptek1.htm>.
1296 Say Y here if your CPU has the ll and sc instructions. Say Y here
1297 for better performance, N if you don't know. You must say Y here
1298 for multiprocessor machines.
1300 config CPU_HAS_LLDSCD
1301 bool "lld/scd Instructions available" if CPU_ADVANCED
1302 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32
1304 Say Y here if your CPU has the lld and scd instructions, the 64-bit
1305 equivalents of ll and sc. Say Y here for better performance, N if
1306 you don't know. You must say Y here for multiprocessor machines.
1309 bool "Writeback Buffer available" if CPU_ADVANCED
1310 default y if !CPU_ADVANCED && CPU_R3000 && MACH_DECSTATION
1312 Say N here for slightly better performance. You must say Y here for
1313 machines which require flushing of write buffers in software. Saying
1314 Y is the safe option; N may result in kernel malfunction and crashes.
1318 depends on !CPU_R3000
1322 # - Highmem only makes sense for the 32-bit kernel.
1323 # - The current highmem code will only work properly on physically indexed
1324 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1325 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1326 # moment we protect the user and offer the highmem option only on machines
1327 # where it's known to be safe. This will not offer highmem on a few systems
1328 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1329 # indexed CPUs but we're playing safe.
1330 # - We should not offer highmem for system of which we already know that they
1331 # don't have memory configurations that could gain from highmem support in
1332 # the kernel because they don't support configurations with RAM at physical
1333 # addresses > 0x20000000.
1336 bool "High Memory Support"
1337 depends on MIPS32 && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_RM9000 || CPU_R10000) && !(BAGET_MIPS || MACH_DECSTATION || MOMENCO_JAGUAR_ATX)
1340 bool "Multi-Processing support"
1341 depends on CPU_RM9000 || (SIBYTE_SB1250 && !SIBYTE_STANDALONE) || SGI_IP27
1343 This enables support for systems with more than one CPU. If you have
1344 a system with only one CPU, like most personal computers, say N. If
1345 you have a system with more than one CPU, say Y.
1347 If you say N here, the kernel will run on single and multiprocessor
1348 machines, but will use only one CPU of a multiprocessor machine. If
1349 you say Y here, the kernel will run on many, but not all,
1350 singleprocessor machines. On a singleprocessor machine, the kernel
1351 will run faster if you say N here.
1353 People using multiprocessor machines who say Y here should also say
1354 Y to "Enhanced Real Time Clock Support", below.
1356 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1357 available at <http://www.tldp.org/docs.html#howto>.
1359 If you don't know what to do here, say N.
1362 int "Maximum number of CPUs (2-64)"
1365 default "64" if SGI_IP27
1368 This allows you to specify the maximum number of CPUs which this
1369 kernel will support. The maximum supported value is 32 for 32-bit
1370 kernel and 64 for 64-bit kernels; the minimum value which makes
1373 This is purely to save memory - each supported CPU adds
1374 approximately eight kilobytes to the kernel image.
1377 bool "Preemptible Kernel"
1379 This option reduces the latency of the kernel when reacting to
1380 real-time or interactive events by allowing a low priority process to
1381 be preempted even if it is in kernel mode executing a system call.
1382 This allows applications to run more reliably even when the system is
1385 config DEBUG_SPINLOCK
1386 bool "Spinlock debugging"
1387 depends on DEBUG_KERNEL
1389 Say Y here and build SMP to catch missing spinlock initialization
1390 and certain other kinds of spinlock errors commonly made. This is
1391 best used in conjunction with the NMI watchdog so that spinlock
1392 deadlocks are also debuggable.
1394 config DEBUG_SPINLOCK_SLEEP
1395 bool "Sleep-inside-spinlock checking"
1397 If you say Y here, various routines which may sleep will become very
1398 noisy if they are called with a spinlock held.
1401 bool "DS1742 BRAM/RTC support"
1402 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1404 config MIPS_INSANE_LARGE
1405 bool "Support for large 64-bit configurations"
1406 depends on CPU_R10000 && MIPS64
1408 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1409 previous 64-bit processors which only supported 40 bit / 1TB. If you
1410 need processes of more than 1TB virtual address space, say Y here.
1411 This will result in additional memory usage, so it is not
1412 recommended for normal users.
1414 config RWSEM_GENERIC_SPINLOCK
1420 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1426 bool "Support for PCI controller"
1427 depends on HW_HAS_PCI
1429 Find out whether you have a PCI motherboard. PCI is the name of a
1430 bus system, i.e. the way the CPU talks to the other stuff inside
1431 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1434 The PCI-HOWTO, available from
1435 <http://www.tldp.org/docs.html#howto>, contains valuable
1436 information about which PCI hardware does work under Linux and which
1439 source "drivers/pci/Kconfig"
1442 # ISA support is now enabled via select. Too many systems still have the one
1443 # or other ISA chip on the board that users don't know about so don't expect
1444 # users to choose the right thing ...
1451 depends on SGI_IP22 || SNI_RM200_PCI
1454 The Extended Industry Standard Architecture (EISA) bus was
1455 developed as an open alternative to the IBM MicroChannel bus.
1457 The EISA bus provided some of the features of the IBM MicroChannel
1458 bus while maintaining backward compatibility with cards made for
1459 the older ISA bus. The EISA bus saw limited use between 1988 and
1460 1995 when it was made obsolete by the PCI bus.
1462 Say Y here if you are building a kernel for an EISA-based machine.
1466 source "drivers/eisa/Kconfig"
1469 bool "TURBOchannel support"
1470 depends on MACH_DECSTATION
1472 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1473 processors. Documentation on writing device drivers for TurboChannel
1475 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1478 # bool "Access.Bus support"
1491 source "drivers/pcmcia/Kconfig"
1493 source "drivers/pci/hotplug/Kconfig"
1497 menu "Executable file formats"
1499 source "fs/Kconfig.binfmt"
1506 bool "Include IRIX binary compatibility"
1507 depends on !CPU_LITTLE_ENDIAN && MIPS32
1509 config MIPS32_COMPAT
1510 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1513 Select this option if you want Linux/MIPS 32-bit binary
1514 compatibility. Since all software available for Linux/MIPS is
1515 currently 32-bit you should say Y here.
1519 depends on MIPS32_COMPAT
1523 bool "Kernel support for o32 binaries"
1524 depends on MIPS32_COMPAT
1526 Select this option if you want to run o32 binaries. These are pure
1527 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1528 existing binaries are in this format.
1533 bool "Kernel support for n32 binaries"
1534 depends on MIPS32_COMPAT
1536 Select this option if you want to run n32 binaries. These are
1537 64-bit binaries using 32-bit quantities for addressing and certain
1538 data that would normally be 64-bit. They are used in special
1545 default y if MIPS32_O32 || MIPS32_N32
1548 bool "Power Management support (EXPERIMENTAL)"
1549 depends on EXPERIMENTAL && MACH_AU1X00
1553 menu "MIPS initrd options"
1554 depends on BLK_DEV_INITRD
1556 config EMBEDDED_RAMDISK
1557 bool "Embed root filesystem ramdisk into the kernel"
1559 config EMBEDDED_RAMDISK_IMAGE
1560 string "Filename of gziped ramdisk image"
1561 depends on EMBEDDED_RAMDISK
1562 default "ramdisk.gz"
1564 This is the filename of the ramdisk image to be built into the
1565 kernel. Relative pathnames are relative to arch/mips/ramdisk/.
1566 The ramdisk image is not part of the kernel distribution; you must
1567 provide one yourself.
1571 source "drivers/Kconfig"
1575 menu "Kernel hacking"
1578 bool "Are you using a crosscompiler"
1580 Say Y here if you are compiling the kernel on a different
1581 architecture than the one it is intended to run on.
1584 string "Default kernel command string"
1587 On some platforms, there is currently no way for the boot loader to
1588 pass arguments to the kernel. For these platforms, you can supply
1589 some command-line options at build time by entering them here. In
1590 other cases you can specify kernel args so that you don't have
1591 to set them up in board prom initialization routines.
1594 bool "Kernel debugging"
1596 config DEBUG_STACK_USAGE
1597 bool "Enable stack utilization instrumentation"
1598 depends on DEBUG_KERNEL
1600 Enables the display of the minimum amount of free stack which each
1601 task has ever had available in the sysrq-T and sysrq-P debug output.
1603 This option will slow down process creation somewhat.
1606 bool "Debug memory allocations"
1607 depends on DEBUG_KERNEL
1609 Say Y here to have the kernel do limited verification on memory
1610 allocation as well as poisoning memory on free to catch use of freed
1614 bool "Remote GDB kernel debugging"
1615 depends on DEBUG_KERNEL
1618 If you say Y here, it will be possible to remotely debug the MIPS
1619 kernel using gdb. This enlarges your kernel image disk size by
1620 several megabytes and requires a machine with more than 16 MB,
1621 better 32 MB RAM to avoid excessive linking time. This is only
1622 useful for kernel hackers. If unsure, say N.
1625 bool "Console output to GDB"
1628 If you are using GDB for remote debugging over a serial port and
1629 would like kernel messages to be formatted into GDB $O packets so
1630 that GDB prints them as program output, say 'Y'.
1633 bool "Compile the kernel with debug info"
1634 depends on DEBUG_KERNEL
1636 If you say Y here the resulting kernel image will include
1637 debugging info resulting in a larger kernel image.
1638 Say Y here only if you plan to use gdb to debug the kernel.
1639 If you don't debug the kernel, you can say N.
1641 config SB1XXX_CORELIS
1642 bool "Corelis Debugger"
1643 depends on SIBYTE_SB1xxx_SOC
1646 Select compile flags that produce code that can be processed by the
1647 Corelis mksym utility and UDB Emulator.
1649 config RUNTIME_DEBUG
1650 bool "Enable run-time debugging"
1651 depends on DEBUG_KERNEL
1653 If you say Y here, some debugging macros will do run-time checking.
1654 If you say N here, those macros will mostly turn to no-ops. See
1655 include/asm-mips/debug.h for debuging macros.
1660 bool "Magic SysRq key"
1661 depends on DEBUG_KERNEL
1663 If you say Y here, you will have some control over the system even
1664 if the system crashes for example during kernel debugging (e.g., you
1665 will be able to flush the buffer cache to disk, reboot the system
1666 immediately or dump some status information). This is accomplished
1667 by pressing various keys while holding SysRq (Alt+PrintScreen). It
1668 also works on a serial console (on PC hardware at least), if you
1669 send a BREAK and then within 5 seconds a command keypress. The
1670 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
1671 unless you really know what this hack does.
1673 config MIPS_UNCACHED
1675 depends on DEBUG_KERNEL && !SMP && !SGI_IP27
1677 If you say Y here there kernel will disable all CPU caches. This will
1678 reduce the system's performance dramatically but can help finding
1679 otherwise hard to track bugs. It can also useful if you're doing
1680 hardware debugging with a logic analyzer and need to see all traffic
1683 config DEBUG_HIGHMEM
1684 bool "Highmem debugging"
1685 depends on DEBUG_KERNEL && HIGHMEM
1689 source "kernel/vserver/Kconfig"
1691 source "security/Kconfig"
1693 source "crypto/Kconfig"
1695 source "lib/Kconfig"