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"
30 # CONFIG_MIPS_BRCM Begin Broadcom changed code.
33 bool "Support for the Broadcom boards"
35 This is a family of boards based on the Broadcom MIPS32
37 source "arch/mips/brcm-boards/bcm963xx/Kconfig"
39 # CONFIG_MIPS_BRCM End Broadcom changed code.
42 bool "Support for the Jazz family of machines"
45 This a family of machines based on the MIPS R4030 chipset which was
46 used by several vendors to build RISC/os and Windows NT workstations.
47 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
48 Olivetti M700-10 workstations.
51 bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
52 depends on MACH_JAZZ && EXPERIMENTAL
53 select DMA_NONCOHERENT
55 This is a machine with a R4400 133/150 MHz CPU. To compile a Linux
56 kernel that runs on these, say Y here. For details about Linux on
57 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
58 <http://www.linux-mips.org/>.
60 config MIPS_MAGNUM_4000
61 bool "Support for MIPS Magnum 4000"
63 select DMA_NONCOHERENT
65 This is a machine with a R4000 100 MHz CPU. To compile a Linux
66 kernel that runs on these, say Y here. For details about Linux on
67 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
68 <http://www.linux-mips.org/>.
71 bool "Support for Olivetti M700-10"
73 select DMA_NONCOHERENT
75 This is a machine with a R4000 100 MHz CPU. To compile a Linux
76 kernel that runs on these, say Y here. For details about Linux on
77 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
78 <http://www.linux-mips.org/>.
81 bool "Support for BAGET MIPS series (EXPERIMENTAL)"
82 depends on MIPS32 && EXPERIMENTAL
84 This enables support for the Baget, a Russian embedded system. For
85 more details about the Baget see the Linux/MIPS FAQ on
86 <http://www.linux-mips.org/>.
89 bool "Support for NEC VR41XX-based machines"
92 bool "Support for CASIO CASSIOPEIA E-10/15/55/65"
93 depends on MACH_VR41XX
94 select DMA_NONCOHERENT
99 bool "Support for IBM WorkPad z50"
100 depends on MACH_VR41XX
101 select DMA_NONCOHERENT
106 bool "Support for TANBAC TB0226 (Mbase)"
107 depends on MACH_VR41XX
108 select DMA_NONCOHERENT
112 The TANBAC TB0226 (Mbase) is a MIPS-based platform manufactured by TANBAC.
113 Please refer to <http://www.tanbac.co.jp/> about Mbase.
116 bool "Support for TANBAC TB0229 (VR4131DIMM)"
117 depends on MACH_VR41XX
118 select DMA_NONCOHERENT
122 The TANBAC TB0229 (VR4131DIMM) is a MIPS-based platform manufactured by TANBAC.
123 Please refer to <http://www.tanbac.co.jp/> about VR4131DIMM.
126 bool "Support for Victor MP-C303/304"
127 select DMA_NONCOHERENT
130 depends on MACH_VR41XX
133 bool "Support for ZAO Networks Capcella"
134 depends on MACH_VR41XX
135 select DMA_NONCOHERENT
140 bool "Add PCI control unit support of NEC VR4100 series"
141 depends on MACH_VR41XX && PCI
144 tristate "Add NEC VRC4171 companion chip support"
145 depends on MACH_VR41XX && ISA
147 The NEC VRC4171/4171A is a companion chip for NEC VR4111/VR4121.
150 tristate "Add NEC VRC4173 companion chip support"
151 depends on MACH_VR41XX && PCI_VR41XX
153 The NEC VRC4173 is a companion chip for NEC VR4122/VR4131.
155 config TOSHIBA_JMR3927
156 bool "Support for Toshiba JMR-TX3927 board"
158 select DMA_NONCOHERENT
163 bool "Support for Cobalt Server (EXPERIMENTAL)"
164 depends on EXPERIMENTAL
165 select DMA_NONCOHERENT
169 config MACH_DECSTATION
170 bool "Support for DECstations"
171 select DMA_NONCOHERENT
173 depends on MIPS32 || EXPERIMENTAL
175 This enables support for DEC's MIPS based workstations. For details
176 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
177 DECstation porting pages on <http://decstation.unix-ag.org/>.
179 If you have one of the following DECstation Models you definitely
180 want to choose R4xx0 for the CPU Type:
187 otherwise choose R3000.
190 bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
191 depends on EXPERIMENTAL
192 select DMA_NONCOHERENT
195 This is an evaluation board based on the Galileo GT-64120
196 single-chip system controller that contains a MIPS R5000 compatible
197 core running at 75/100MHz. Their website is located at
198 <http://www.marvell.com/>. Say Y here if you wish to build a
199 kernel for this platform.
202 bool "Enable Second PCI (PCI1)"
203 depends on MIPS_EV64120
206 bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)"
207 depends on EXPERIMENTAL
208 select DMA_NONCOHERENT
212 select RM7000_CPU_SCACHE
215 This is an evaluation board based on the Galileo GT-96100 LAN/WAN
216 communications controllers containing a MIPS R5000 compatible core
217 running at 83MHz. Their website is <http://www.marvell.com/>. Say Y
218 here if you wish to build a kernel for this platform.
221 bool "Support for Globespan IVR board"
222 select DMA_NONCOHERENT
225 This is an evaluation board built by Globespan to showcase thir
226 iVR (Internet Video Recorder) design. It utilizes a QED RM5231
227 R5000 MIPS core. More information can be found out their website
228 located at <http://www.globespan.net/>. Say Y here if you wish to
229 build a kernel for this platform.
232 bool "Support for LASAT Networks platforms"
233 select DMA_NONCOHERENT
235 select R5000_CPU_SCACHE
238 tristate "PICVUE LCD display driver"
242 tristate "PICVUE LCD display driver /proc interface"
246 bool "DS1603 RTC driver"
250 bool "LASAT sysctl interface"
254 bool "Support for Hewlett Packard LaserJet board"
256 select DMA_NONCOHERENT
261 bool "Support for ITE 8172G board"
262 select DMA_NONCOHERENT
265 Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
266 with ATX form factor that utilizes a MIPS R5000 to work with its
267 ITE8172G companion internet appliance chip. The MIPS core can be
268 either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build
269 a kernel for this platform.
272 bool "Support for older IT8172 (Rev C)"
273 depends on MIPS_ITE8172
275 Say Y here to support the older, Revision C version of the Integrated
276 Technology Express, Inc. ITE8172 SBC. Vendor page at
277 <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
278 board at <http://www.mvista.com/partners/semiconductor/ite.html>.
281 bool "Support for MIPS Atlas board"
282 select DMA_NONCOHERENT
286 This enables support for the QED R5231-based MIPS Atlas evaluation
290 bool "Support for MIPS Malta board"
291 select HAVE_STD_PC_SERIAL_PORT
292 select DMA_NONCOHERENT
296 This enables support for the VR5000-based MIPS Malta evaluation
300 bool "Support for MIPS SEAD board (EXPERIMENTAL)"
301 depends on EXPERIMENTAL
303 select DMA_NONCOHERENT
305 config MOMENCO_OCELOT
306 bool "Support for Momentum Ocelot board"
307 select DMA_NONCOHERENT
311 select RM7000_CPU_SCACHE
314 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
315 Momentum Computer <http://www.momenco.com/>.
317 config MOMENCO_OCELOT_G
318 bool "Support for Momentum Ocelot-G board"
319 select DMA_NONCOHERENT
324 select RM7000_CPU_SCACHE
327 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
328 Momentum Computer <http://www.momenco.com/>.
330 config MOMENCO_OCELOT_C
331 bool "Support for Momentum Ocelot-C board"
332 select DMA_NONCOHERENT
337 select RM7000_CPU_SCACHE
340 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
341 Momentum Computer <http://www.momenco.com/>.
343 config MOMENCO_JAGUAR_ATX
344 bool "Support for Momentum Jaguar board"
345 select DMA_NONCOHERENT
352 select RM7000_CPU_SCACHE
355 The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
356 Momentum Computer <http://www.momenco.com/>.
360 depends on MOMENCO_JAGUAR_ATX
362 Select to Y if jump JP5 is set on your board, N otherwise. Normally
363 the jumper is set, so if you feel unsafe, just say Y.
366 bool "Support for PMC-Sierra Yosemite eval board"
373 Yosemite is an evaluation board for the RM9000x2 processor
374 manufactured by PMC-Sierra
376 config HYPERTRANSPORT
377 bool "Hypertransport Support for PMC-Sierra Yosemite"
378 depends on PMC_YOSEMITE
381 bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)"
382 depends on EXPERIMENTAL
383 select DMA_NONCOHERENT
384 select HAVE_STD_PC_SERIAL_PORT
389 This enables support for the VR5000-based NEC DDB Vrc-5074
393 bool "Support for NEC DDB Vrc-5476"
394 select DMA_NONCOHERENT
395 select HAVE_STD_PC_SERIAL_PORT
400 This enables support for the R5432-based NEC DDB Vrc-5476
403 Features : kernel debugging, serial terminal, NFS root fs, on-board
404 ether port USB, AC97, PCI, PCI VGA card & framebuffer console,
405 IDE controller, PS2 keyboard, PS2 mouse, etc.
408 bool "Support for NEC DDB Vrc-5477"
409 select DMA_NONCOHERENT
413 This enables support for the R5432-based NEC DDB Vrc-5477,
414 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
416 Features : kernel debugging, serial terminal, NFS root fs, on-board
417 ether port USB, AC97, PCI, etc.
419 config DDB5477_BUS_FREQUENCY
420 int "bus frequency (in kHZ, 0 for auto-detect)"
425 bool "Support for NEC Osprey board"
426 select DMA_NONCOHERENT
430 bool "Support for SGI IP22 (Indy/Indigo2)"
431 select DMA_NONCOHERENT
432 select IP22_CPU_SCACHE
436 This are the SGI Indy, Challenge S and Indigo2, as well as certain
437 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
438 that runs on these, say Y here.
441 bool "Support for SGI IP27 (Origin200/2000)"
446 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
447 workstations. To compile a Linux kernel that runs on these, say Y
452 # depends on SGI_IP27
453 # This options adds support for userspace processes upto 16TB size.
454 # Normally the limit is just .5TB.
456 config SGI_SN0_N_MODE
460 The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be
461 configured in either N-Modes which allows for more nodes or M-Mode
462 which allows for more memory. Your system is most probably
463 running in M-Mode, so you should say N here.
467 default y if SGI_IP27
469 Say Y to upport efficient handling of discontiguous physical memory,
470 for architectures which are either NUMA (Non-Uniform Memory Access)
471 or have huge holes in the physical address space for other reasons.
472 See <file:Documentation/vm/numa> for more.
478 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
479 Access). This option is for configuring high-end multiprocessor
480 server machines. If in doubt, say N.
483 bool "Mapped kernel support"
486 Change the way a Linux kernel is loaded unto memory on a MIPS64
487 machine. This is required in order to support text replication and
488 NUMA. If you need to undersatand it, read the source code.
490 config REPLICATE_KTEXT
491 bool "Kernel text replication support"
494 Say Y here to enable replicating the kernel text across multiple
495 nodes in a NUMA cluster. This trades memory for speed.
497 config REPLICATE_EXHANDLERS
498 bool "Exception handler replication support"
501 Say Y here to enable replicating the kernel exception handlers
502 across multiple nodes in a NUMA cluster. This trades memory for
506 bool "Support for SGI IP32 (O2) (EXPERIMENTAL)"
507 depends on EXPERIMENTAL
508 select DMA_NONCOHERENT
510 select R5000_CPU_SCACHE
511 select RM7000_CPU_SCACHE
513 If you want this kernel to run on SGI O2 workstation, say Y here.
517 bool "Support for AMD/Alchemy Au1X00 SOCs"
520 prompt "Au1X00 SOC Type"
521 depends on SOC_AU1X00
523 Say Y here to enable support for one of three AMD/Alchemy
524 SOCs. For additional documentation see www.amd.com.
538 prompt "AMD/Alchemy Au1x00 board support"
539 depends on SOC_AU1X00
541 These are evaluation boards built by AMD/Alchemy to
542 showcase their Au1X00 Internet Edge Processors. The SOC design
543 is based on the MIPS32 architecture running at 266/400/500MHz
544 with many integrated peripherals. Further information can be
545 found at their website, <http://www.amd.com/>. Say Y here if you
546 wish to build a kernel for this platform.
550 depends on SOC_AU1000
551 select DMA_NONCOHERENT
557 depends on SOC_AU1100
558 select DMA_NONCOHERENT
564 depends on SOC_AU1500
565 select DMA_NONCOHERENT
570 depends on SOC_AU1550
571 select DMA_NONCOHERENT
576 depends on SOC_AU1000
577 select DMA_NONCOHERENT
582 depends on SOC_AU1100
583 select DMA_NONCOHERENT
587 depends on SOC_AU1500
588 select DMA_NONCOHERENT
593 depends on SOC_AU1550
597 bool "Bosporus board"
598 depends on SOC_AU1500
599 select DMA_NONCOHERENT
603 depends on SOC_AU1500
604 select DMA_NONCOHERENT
607 bool "MyCable XXS1500 board"
608 depends on SOC_AU1500
609 select DMA_NONCOHERENT
612 bool "4G Systems MTX-1 board"
613 depends on SOC_AU1500
614 select DMA_NONCOHERENT
618 config SIBYTE_SB1xxx_SOC
619 bool "Support for Broadcom BCM1xxx SOCs (EXPERIMENTAL)"
620 depends on EXPERIMENTAL
625 prompt "BCM1xxx SOC-based board"
626 depends on SIBYTE_SB1xxx_SOC
629 Enable support for boards based on the SiByte line of SOCs
630 from Broadcom. There are configurations for the known
631 evaluation boards, or you can choose "Other" and add your
632 own board support code.
635 bool "BCM91250A-SWARM"
638 config SIBYTE_SENTOSA
639 bool "BCM91250E-Sentosa"
643 bool "BCM91125E-Rhone"
644 select SIBYTE_BCM1125H
647 bool "BCM91120x-Carmel"
648 select SIBYTE_BCM1120
650 config SIBYTE_PTSWARM
651 bool "BCM91250PT-PTSWARM"
654 config SIBYTE_LITTLESUR
655 bool "BCM91250C2-LittleSur"
659 bool "BCM91120C-CRhine"
660 select SIBYTE_BCM1120
663 bool "BCM91125C-CRhone"
664 select SIBYTE_BCM1125
666 config SIBYTE_UNKNOWN
673 depends on SIBYTE_SB1xxx_SOC && !SIBYTE_UNKNOWN
677 prompt "BCM1xxx SOC Type"
678 depends on SIBYTE_UNKNOWN
679 default SIBYTE_UNK_BCM1250
681 Since you haven't chosen a known evaluation board from
682 Broadcom, you must explicitly pick the SOC this kernel is
685 config SIBYTE_UNK_BCM1250
689 config SIBYTE_UNK_BCM1120
691 select SIBYTE_BCM1120
693 config SIBYTE_UNK_BCM1125
695 select SIBYTE_BCM1125
697 config SIBYTE_UNK_BCM1125H
699 select SIBYTE_BCM1125H
707 config SIBYTE_BCM1120
709 select SIBYTE_BCM112X
711 config SIBYTE_BCM1125
714 select SIBYTE_BCM112X
716 config SIBYTE_BCM1125H
719 select SIBYTE_BCM112X
721 config SIBYTE_BCM112X
725 prompt "SiByte SOC Stepping"
726 depends on SIBYTE_SB1xxx_SOC
728 config CPU_SB1_PASS_1
730 depends on SIBYTE_SB1250
732 config CPU_SB1_PASS_2_1250
734 depends on SIBYTE_SB1250
735 select CPU_SB1_PASS_2
737 Also called BCM1250 Pass 2
739 config CPU_SB1_PASS_2_2
741 depends on SIBYTE_SB1250
743 Also called BCM1250 Pass 2.2
745 config CPU_SB1_PASS_4
747 depends on SIBYTE_SB1250
749 Also called BCM1250 Pass 3
751 config CPU_SB1_PASS_2_112x
753 depends on SIBYTE_BCM112X
754 select CPU_SB1_PASS_2
756 config CPU_SB1_PASS_3
758 depends on SIBYTE_BCM112X
762 config CPU_SB1_PASS_2
765 config SIBYTE_HAS_LDT
767 depends on PCI && (SIBYTE_SB1250 || SIBYTE_BCM1125H)
771 bool "Running under simulation"
772 depends on SIBYTE_SB1xxx_SOC
774 Build a kernel suitable for running under the GDB simulator.
775 Primarily adjusts the kernel's notion of time.
778 bool "Booting from CFE"
779 depends on SIBYTE_SB1xxx_SOC
781 Make use of the CFE API for enumerating available memory,
782 controlling secondary CPUs, and possibly console output.
784 config SIBYTE_CFE_CONSOLE
785 bool "Use firmware console"
786 depends on SIBYTE_CFE
788 Use the CFE API's console write routines during boot. Other console
789 options (VT console, sb1250 duart console, etc.) should not be
792 config SIBYTE_STANDALONE
794 depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
797 config SIBYTE_STANDALONE_RAM_SIZE
798 int "Memory size (in megabytes)"
799 depends on SIBYTE_STANDALONE
802 config SIBYTE_BUS_WATCHER
803 bool "Support for Bus Watcher statistics"
804 depends on SIBYTE_SB1xxx_SOC
806 Handle and keep statistics on the bus error interrupts (COR_ECC,
809 config SIBYTE_BW_TRACE
810 bool "Capture bus trace before bus error"
811 depends on SIBYTE_BUS_WATCHER
813 Run a continuous bus trace, dumping the raw data as soon as
814 a ZBbus error is detected. Cannot work if ZBbus profiling
815 is turned on, and also will interfere with JTAG-based trace
816 buffer activity. Raw buffer data is dumped to console, and
817 must be processed off-line.
819 config SIBYTE_SB1250_PROF
820 bool "Support for SB1/SOC profiling - SB1/SCD perf counters"
821 depends on SIBYTE_SB1xxx_SOC
824 bool "Support for ZBbus profiling"
825 depends on SIBYTE_SB1xxx_SOC
828 bool "Support for SNI RM200 PCI"
829 select DMA_NONCOHERENT
830 select HAVE_STD_PC_SERIAL_PORT
834 The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
835 Nixdorf Informationssysteme (SNI), parent company of Pyramid
836 Technology and now in turn merged with Fujitsu. Say Y here to
837 support this machine type.
839 config TOSHIBA_RBTX4927
840 bool "Support for Toshiba TBTX49[23]7 board"
842 select DMA_NONCOHERENT
847 config RWSEM_GENERIC_SPINLOCK
851 config RWSEM_XCHGADD_ALGORITHM
859 # Select some configuration options automatically based on user selections.
863 depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP27 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
872 config DMA_NONCOHERENT
877 depends on MACH_DECSTATION
880 config GENERIC_ISA_DMA
882 depends on SNI_RM200_PCI || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61 || MIPS_MALTA
887 depends on SNI_RM200_PCI || DDB5477 || DDB5476 || DDB5074 || MACH_JAZZ || MIPS_MALTA || MIPS_COBALT
896 depends on MIPS_ATLAS || MIPS_MALTA
901 depends on MIPS_ATLAS || MIPS_MALTA
909 config CPU_LITTLE_ENDIAN
910 bool "Generate little endian code"
911 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
912 default n if BAGET_MIPS || MIPS_EV64120 || MIPS_EV96100 || MOMENCO_OCELOT || MOMENCO_OCELOT_G || SGI_IP22 || SGI_IP27 || SGI_IP32 || TOSHIBA_JMR3927
914 Some MIPS machines can be configured for either little or big endian
915 byte order. These modes require different kernels. Say Y if your
916 machine is little endian, N if it's a big endian machine.
927 config DDB5XXX_COMMON
929 depends on DDB5074 || DDB5476 || DDB5477
932 config MIPS_BOARDS_GEN
934 depends on MIPS_ATLAS || MIPS_MALTA || MIPS_SEAD
939 depends on MIPS_COBALT
944 depends on MIPS_EV64120 || MIPS_EV96100 || LASAT || MIPS_ATLAS || MIPS_MALTA || MOMENCO_OCELOT
949 depends on TOSHIBA_JMR3927
957 depends on MIPS_IVR || MIPS_ITE8172
964 # Unfortunately not all GT64120 systems run the chip at the same clock.
965 # As the user for the clock rate and try to minimize the available options.
968 prompt "Galileo Chip Clock"
969 #default SYSCLK_83 if MIPS_EV64120
970 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
971 default SYSCLK_83 if MIPS_EV64120
972 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
975 bool "75" if MIPS_EV64120
978 bool "83.3" if MIPS_EV64120
981 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
985 config AU1000_USB_DEVICE
987 depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
992 depends on MIPS_EV96100
995 Say Y here to support the Galileo Technology GT96100 communications
996 controller card. There is a web page at <http://www.galileot.com/>.
1000 depends on MIPS_ITE8172 || MIPS_IVR
1005 depends on MIPS_ITE8172
1010 depends on MACH_DECSTATION || MIPS_ATLAS || MIPS_MALTA || MOMENCO_JAGUAR_ATX || SIBYTE_SB1xxx_SOC || SGI_IP32 || SGI_IP22 || SNI_RM200_PCI
1013 config MIPS_L1_CACHE_SHIFT
1015 default "4" if MACH_DECSTATION
1016 default "7" if SGI_IP27
1021 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1026 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
1029 The frame buffer device provides an abstraction for the graphics
1030 hardware. It represents the frame buffer of some video hardware and
1031 allows application software to access the graphics hardware through
1032 a well-defined interface, so the software doesn't need to know
1033 anything about the low-level (hardware register) stuff.
1035 Frame buffer devices work identically across the different
1036 architectures supported by Linux and make the implementation of
1037 application programs easier and more portable; at this point, an X
1038 server exists which uses the frame buffer device exclusively.
1039 On several non-X86 architectures, the frame buffer device is the
1040 only way to use the graphics hardware.
1042 The device is accessed through special device nodes, usually located
1043 in the /dev directory, i.e. /dev/fb*.
1045 You need an utility program called fbset to make full use of frame
1046 buffer devices. Please read <file:Documentation/fb/framebuffer.txt>
1047 and the Framebuffer-HOWTO at <http://www.tldp.org/docs.html#howto>
1048 for more information.
1050 Say Y here and to the driver for your graphics board below if you
1051 are compiling a kernel for a non-x86 architecture.
1053 If you are compiling for the x86 architecture, you can say Y if you
1054 want to play with it, but it is not essential. Please note that
1055 running graphical applications that directly touch the hardware
1056 (e.g. an accelerated X server) and that are not frame buffer
1057 device-aware may cause unexpected results. If unsure, say N.
1061 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
1064 config HAVE_STD_PC_SERIAL_PORT
1069 depends on NEC_OSPREY
1073 bool "ARC console support"
1074 depends on SGI_IP22 || SNI_RM200_PCI
1078 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP32
1083 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1096 #config MAPPED_PCI_IO y
1098 # depends on SGI_IP27
1106 config TOSHIBA_BOARDS
1108 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1111 config TANBAC_TB0219
1112 bool "Added TANBAC TB0219 Base board support"
1113 depends on TANBAC_TB0229
1118 menu "CPU selection"
1134 Please make sure to pick the right CPU type. Linux/MIPS is not
1135 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1136 *not* work on R4000 machines and vice versa. However, since most
1137 of the supported machines have an R4000 (or similar) CPU, R4x00
1138 might be a safe bet. If the resulting kernel does not work,
1139 try to recompile with R3000.
1148 The options selects support for the NEC VR41xx series of processors.
1149 Only choose this option if you have one of these processors as a
1150 kernel built with this option will not run on any other type of
1151 processor or vice versa.
1156 MIPS Technologies R4300-series processors.
1161 MIPS Technologies R4000-series processors other than 4300, including
1162 the R4000, R4400, R4600, and 4700.
1170 MIPS Technologies R5000-series processors other than the Nevada.
1177 depends on MIPS32 && EXPERIMENTAL
1179 MIPS Technologies R6000 and R6000A series processors. Note these
1180 processors are extremly rare and the support for them is incomplete.
1185 MIPS Technologies R52x0-series ("Nevada") processors.
1189 depends on MIPS64 && EXPERIMENTAL
1191 MIPS Technologies R8000 processors. Note these processors are
1192 uncommon and the support for them is incomplete.
1197 MIPS Technologies R10000-series processors.
1211 prompt "Kernel page size"
1212 default PAGE_SIZE_4KB
1214 config PAGE_SIZE_4KB
1217 This option select the standard 4kB Linux page size. On some
1218 R3000-family processors this is the only available page size. Using
1219 4kB page size will minimize memory consumption and is therefore
1220 recommended for low memory systems.
1222 config PAGE_SIZE_8KB
1224 depends on EXPERIMENTAL && CPU_R8000
1226 Using 8kB page size will result in higher performance kernel at
1227 the price of higher memory consumption. This option is available
1228 only on the R8000 processor. Not that at the time of this writing
1229 this option is still high experimental; there are also issues with
1230 compatibility of user applications.
1232 config PAGE_SIZE_16KB
1234 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1236 Using 16kB page size will result in higher performance kernel at
1237 the price of higher memory consumption. This option is available on
1238 all non-R3000 family processor. Not that at the time of this
1239 writing this option is still high experimental; there are also
1240 issues with compatibility of user applications.
1242 config PAGE_SIZE_64KB
1244 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1246 Using 64kB page size will result in higher performance kernel at
1247 the price of higher memory consumption. This option is available on
1248 all non-R3000 family processor. Not that at the time of this
1249 writing this option is still high experimental; there are also
1250 issues with compatibility of user applications.
1257 config IP22_CPU_SCACHE
1261 config R5000_CPU_SCACHE
1265 config RM7000_CPU_SCACHE
1269 config SIBYTE_DMA_PAGEOPS
1270 bool "Use DMA to clear/copy pages"
1273 Instead of using the CPU to zero and copy pages, use a Data Mover
1274 channel. These DMA channels are otherwise unused by the standard
1275 SiByte Linux port. Seems to give a small performance benefit.
1277 config CPU_HAS_PREFETCH
1278 bool "Enable prefetches" if CPU_SB1 && !CPU_SB1_PASS_2
1279 default y if CPU_MIPS32 || CPU_MIPS64 || CPU_RM7000 || CPU_RM9000 || CPU_R10000
1282 bool "Support for Virtual Tagged I-cache" if CPU_MIPS64 || CPU_MIPS32
1283 default y if CPU_SB1
1285 config SB1_PASS_1_WORKAROUNDS
1287 depends on CPU_SB1_PASS_1
1290 config SB1_PASS_2_WORKAROUNDS
1292 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1295 config SB1_PASS_2_1_WORKAROUNDS
1297 depends on CPU_SB1 && CPU_SB1_PASS_2
1300 config 64BIT_PHYS_ADDR
1301 bool "Support for 64-bit physical address space"
1302 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && MIPS32
1305 bool "Override CPU Options"
1308 Saying yes here allows you to select support for various features
1309 your CPU may or may not have. Most people should say N here.
1312 bool "ll/sc Instructions available" if CPU_ADVANCED
1313 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX
1315 MIPS R4000 series and later provide the Load Linked (ll)
1316 and Store Conditional (sc) instructions. More information is
1317 available at <http://www.go-ecs.com/mips/miptek1.htm>.
1319 Say Y here if your CPU has the ll and sc instructions. Say Y here
1320 for better performance, N if you don't know. You must say Y here
1321 for multiprocessor machines.
1323 config CPU_HAS_LLDSCD
1324 bool "lld/scd Instructions available" if CPU_ADVANCED
1325 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32
1327 Say Y here if your CPU has the lld and scd instructions, the 64-bit
1328 equivalents of ll and sc. Say Y here for better performance, N if
1329 you don't know. You must say Y here for multiprocessor machines.
1332 bool "Writeback Buffer available" if CPU_ADVANCED
1333 default y if !CPU_ADVANCED && CPU_R3000 && MACH_DECSTATION
1335 Say N here for slightly better performance. You must say Y here for
1336 machines which require flushing of write buffers in software. Saying
1337 Y is the safe option; N may result in kernel malfunction and crashes.
1341 depends on !CPU_R3000
1345 # - Highmem only makes sense for the 32-bit kernel.
1346 # - The current highmem code will only work properly on physically indexed
1347 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1348 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1349 # moment we protect the user and offer the highmem option only on machines
1350 # where it's known to be safe. This will not offer highmem on a few systems
1351 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1352 # indexed CPUs but we're playing safe.
1353 # - We should not offer highmem for system of which we already know that they
1354 # don't have memory configurations that could gain from highmem support in
1355 # the kernel because they don't support configurations with RAM at physical
1356 # addresses > 0x20000000.
1359 bool "High Memory Support"
1360 depends on MIPS32 && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_RM9000 || CPU_R10000) && !(BAGET_MIPS || MACH_DECSTATION || MOMENCO_JAGUAR_ATX)
1363 bool "Multi-Processing support"
1364 depends on CPU_RM9000 || (SIBYTE_SB1250 && !SIBYTE_STANDALONE) || SGI_IP27
1366 This enables support for systems with more than one CPU. If you have
1367 a system with only one CPU, like most personal computers, say N. If
1368 you have a system with more than one CPU, say Y.
1370 If you say N here, the kernel will run on single and multiprocessor
1371 machines, but will use only one CPU of a multiprocessor machine. If
1372 you say Y here, the kernel will run on many, but not all,
1373 singleprocessor machines. On a singleprocessor machine, the kernel
1374 will run faster if you say N here.
1376 People using multiprocessor machines who say Y here should also say
1377 Y to "Enhanced Real Time Clock Support", below.
1379 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1380 available at <http://www.tldp.org/docs.html#howto>.
1382 If you don't know what to do here, say N.
1385 int "Maximum number of CPUs (2-64)"
1388 default "64" if SGI_IP27
1391 This allows you to specify the maximum number of CPUs which this
1392 kernel will support. The maximum supported value is 32 for 32-bit
1393 kernel and 64 for 64-bit kernels; the minimum value which makes
1396 This is purely to save memory - each supported CPU adds
1397 approximately eight kilobytes to the kernel image.
1400 bool "Preemptible Kernel"
1402 This option reduces the latency of the kernel when reacting to
1403 real-time or interactive events by allowing a low priority process to
1404 be preempted even if it is in kernel mode executing a system call.
1405 This allows applications to run more reliably even when the system is
1408 config DEBUG_SPINLOCK
1409 bool "Spinlock debugging"
1410 depends on DEBUG_KERNEL
1412 Say Y here and build SMP to catch missing spinlock initialization
1413 and certain other kinds of spinlock errors commonly made. This is
1414 best used in conjunction with the NMI watchdog so that spinlock
1415 deadlocks are also debuggable.
1417 config DEBUG_SPINLOCK_SLEEP
1418 bool "Sleep-inside-spinlock checking"
1420 If you say Y here, various routines which may sleep will become very
1421 noisy if they are called with a spinlock held.
1424 bool "DS1742 BRAM/RTC support"
1425 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1427 config MIPS_INSANE_LARGE
1428 bool "Support for large 64-bit configurations"
1429 depends on CPU_R10000 && MIPS64
1431 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1432 previous 64-bit processors which only supported 40 bit / 1TB. If you
1433 need processes of more than 1TB virtual address space, say Y here.
1434 This will result in additional memory usage, so it is not
1435 recommended for normal users.
1437 config RWSEM_GENERIC_SPINLOCK
1443 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1449 bool "Support for PCI controller"
1450 depends on HW_HAS_PCI
1452 Find out whether you have a PCI motherboard. PCI is the name of a
1453 bus system, i.e. the way the CPU talks to the other stuff inside
1454 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1457 The PCI-HOWTO, available from
1458 <http://www.tldp.org/docs.html#howto>, contains valuable
1459 information about which PCI hardware does work under Linux and which
1462 source "drivers/pci/Kconfig"
1465 # ISA support is now enabled via select. Too many systems still have the one
1466 # or other ISA chip on the board that users don't know about so don't expect
1467 # users to choose the right thing ...
1474 depends on SGI_IP22 || SNI_RM200_PCI
1477 The Extended Industry Standard Architecture (EISA) bus was
1478 developed as an open alternative to the IBM MicroChannel bus.
1480 The EISA bus provided some of the features of the IBM MicroChannel
1481 bus while maintaining backward compatibility with cards made for
1482 the older ISA bus. The EISA bus saw limited use between 1988 and
1483 1995 when it was made obsolete by the PCI bus.
1485 Say Y here if you are building a kernel for an EISA-based machine.
1489 source "drivers/eisa/Kconfig"
1492 bool "TURBOchannel support"
1493 depends on MACH_DECSTATION
1495 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1496 processors. Documentation on writing device drivers for TurboChannel
1498 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1501 # bool "Access.Bus support"
1514 source "drivers/pcmcia/Kconfig"
1516 source "drivers/pci/hotplug/Kconfig"
1520 menu "Executable file formats"
1522 source "fs/Kconfig.binfmt"
1529 bool "Include IRIX binary compatibility"
1530 depends on !CPU_LITTLE_ENDIAN && MIPS32
1532 config MIPS32_COMPAT
1533 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1536 Select this option if you want Linux/MIPS 32-bit binary
1537 compatibility. Since all software available for Linux/MIPS is
1538 currently 32-bit you should say Y here.
1542 depends on MIPS32_COMPAT
1546 bool "Kernel support for o32 binaries"
1547 depends on MIPS32_COMPAT
1549 Select this option if you want to run o32 binaries. These are pure
1550 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1551 existing binaries are in this format.
1556 bool "Kernel support for n32 binaries"
1557 depends on MIPS32_COMPAT
1559 Select this option if you want to run n32 binaries. These are
1560 64-bit binaries using 32-bit quantities for addressing and certain
1561 data that would normally be 64-bit. They are used in special
1568 default y if MIPS32_O32 || MIPS32_N32
1571 bool "Power Management support (EXPERIMENTAL)"
1572 depends on EXPERIMENTAL && MACH_AU1X00
1576 menu "MIPS initrd options"
1577 depends on BLK_DEV_INITRD
1579 config EMBEDDED_RAMDISK
1580 bool "Embed root filesystem ramdisk into the kernel"
1582 config EMBEDDED_RAMDISK_IMAGE
1583 string "Filename of gziped ramdisk image"
1584 depends on EMBEDDED_RAMDISK
1585 default "ramdisk.gz"
1587 This is the filename of the ramdisk image to be built into the
1588 kernel. Relative pathnames are relative to arch/mips/ramdisk/.
1589 The ramdisk image is not part of the kernel distribution; you must
1590 provide one yourself.
1594 source "drivers/Kconfig"
1598 menu "Kernel hacking"
1601 bool "Are you using a crosscompiler"
1603 Say Y here if you are compiling the kernel on a different
1604 architecture than the one it is intended to run on.
1607 string "Default kernel command string"
1610 On some platforms, there is currently no way for the boot loader to
1611 pass arguments to the kernel. For these platforms, you can supply
1612 some command-line options at build time by entering them here. In
1613 other cases you can specify kernel args so that you don't have
1614 to set them up in board prom initialization routines.
1617 bool "Kernel debugging"
1619 config DEBUG_STACK_USAGE
1620 bool "Enable stack utilization instrumentation"
1621 depends on DEBUG_KERNEL
1623 Enables the display of the minimum amount of free stack which each
1624 task has ever had available in the sysrq-T and sysrq-P debug output.
1626 This option will slow down process creation somewhat.
1629 bool "Debug memory allocations"
1630 depends on DEBUG_KERNEL
1632 Say Y here to have the kernel do limited verification on memory
1633 allocation as well as poisoning memory on free to catch use of freed
1637 bool "Remote GDB kernel debugging"
1638 depends on DEBUG_KERNEL
1641 If you say Y here, it will be possible to remotely debug the MIPS
1642 kernel using gdb. This enlarges your kernel image disk size by
1643 several megabytes and requires a machine with more than 16 MB,
1644 better 32 MB RAM to avoid excessive linking time. This is only
1645 useful for kernel hackers. If unsure, say N.
1648 bool "Console output to GDB"
1651 If you are using GDB for remote debugging over a serial port and
1652 would like kernel messages to be formatted into GDB $O packets so
1653 that GDB prints them as program output, say 'Y'.
1656 bool "Compile the kernel with debug info"
1657 depends on DEBUG_KERNEL
1659 If you say Y here the resulting kernel image will include
1660 debugging info resulting in a larger kernel image.
1661 Say Y here only if you plan to use gdb to debug the kernel.
1662 If you don't debug the kernel, you can say N.
1664 config SB1XXX_CORELIS
1665 bool "Corelis Debugger"
1666 depends on SIBYTE_SB1xxx_SOC
1669 Select compile flags that produce code that can be processed by the
1670 Corelis mksym utility and UDB Emulator.
1672 config RUNTIME_DEBUG
1673 bool "Enable run-time debugging"
1674 depends on DEBUG_KERNEL
1676 If you say Y here, some debugging macros will do run-time checking.
1677 If you say N here, those macros will mostly turn to no-ops. See
1678 include/asm-mips/debug.h for debuging macros.
1683 bool "Magic SysRq key"
1684 depends on DEBUG_KERNEL
1686 If you say Y here, you will have some control over the system even
1687 if the system crashes for example during kernel debugging (e.g., you
1688 will be able to flush the buffer cache to disk, reboot the system
1689 immediately or dump some status information). This is accomplished
1690 by pressing various keys while holding SysRq (Alt+PrintScreen). It
1691 also works on a serial console (on PC hardware at least), if you
1692 send a BREAK and then within 5 seconds a command keypress. The
1693 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
1694 unless you really know what this hack does.
1696 config MIPS_UNCACHED
1698 depends on DEBUG_KERNEL && !SMP && !SGI_IP27
1700 If you say Y here there kernel will disable all CPU caches. This will
1701 reduce the system's performance dramatically but can help finding
1702 otherwise hard to track bugs. It can also useful if you're doing
1703 hardware debugging with a logic analyzer and need to see all traffic
1706 config DEBUG_HIGHMEM
1707 bool "Highmem debugging"
1708 depends on DEBUG_KERNEL && HIGHMEM
1712 source "security/Kconfig"
1714 source "crypto/Kconfig"
1716 source "lib/Kconfig"