4 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
11 select ARCH_HAVE_CUSTOM_GPIO_H
12 select HAVE_FUNCTION_TRACER
13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14 select HAVE_DYNAMIC_FTRACE
15 select HAVE_FTRACE_MCOUNT_RECORD
16 select HAVE_C_RECORDMCOUNT
17 select HAVE_FUNCTION_GRAPH_TRACER
19 select HAVE_KRETPROBES
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select RTC_LIB if !MACH_LOONGSON
22 select GENERIC_ATOMIC64 if !64BIT
23 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
25 select HAVE_DMA_API_DEBUG
26 select HAVE_GENERIC_HARDIRQS
27 select GENERIC_IRQ_PROBE
28 select GENERIC_IRQ_SHOW
29 select HAVE_ARCH_JUMP_LABEL
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select IRQ_FORCED_THREADING
33 select HAVE_MEMBLOCK_NODE_MAP
34 select ARCH_DISCARD_MEMBLOCK
35 select GENERIC_SMP_IDLE_THREAD
36 select BUILDTIME_EXTABLE_SORT
37 select GENERIC_CLOCKEVENTS
38 select GENERIC_CMOS_UPDATE
40 menu "Machine selection"
50 bool "Alchemy processor based machines"
51 select 64BIT_PHYS_ADDR
55 select SYS_HAS_CPU_MIPS32_R1
56 select SYS_SUPPORTS_32BIT_KERNEL
57 select SYS_SUPPORTS_APM_EMULATION
59 select ARCH_WANT_OPTIONAL_GPIOLIB
60 select SYS_SUPPORTS_ZBOOT
61 select USB_ARCH_HAS_OHCI
62 select USB_ARCH_HAS_EHCI
65 bool "Texas Instruments AR7"
67 select DMA_NONCOHERENT
73 select SYS_HAS_CPU_MIPS32_R1
74 select SYS_HAS_EARLY_PRINTK
75 select SYS_SUPPORTS_32BIT_KERNEL
76 select SYS_SUPPORTS_LITTLE_ENDIAN
77 select SYS_SUPPORTS_ZBOOT_UART16550
78 select ARCH_REQUIRE_GPIOLIB
82 Support for the Texas Instruments AR7 System-on-a-Chip
83 family: TNETD7100, 7200 and 7300.
86 bool "Atheros AR71XX/AR724X/AR913X based boards"
87 select ARCH_REQUIRE_GPIOLIB
91 select DMA_NONCOHERENT
95 select SYS_HAS_CPU_MIPS32_R2
96 select SYS_HAS_EARLY_PRINTK
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_BIG_ENDIAN
100 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
103 bool "Broadcom BCM47XX based boards"
106 select DMA_NONCOHERENT
109 select SYS_SUPPORTS_32BIT_KERNEL
110 select SYS_SUPPORTS_LITTLE_ENDIAN
112 select SYS_HAS_EARLY_PRINTK
115 Support for BCM47XX based boards
118 bool "Broadcom BCM63XX based boards"
121 select DMA_NONCOHERENT
123 select SYS_HAS_CPU_MIPS32_R1
124 select SYS_SUPPORTS_32BIT_KERNEL
125 select SYS_SUPPORTS_BIG_ENDIAN
126 select SYS_HAS_EARLY_PRINTK
128 select ARCH_REQUIRE_GPIOLIB
131 Support for BCM63XX based boards
138 select DMA_NONCOHERENT
144 select PCI_GT64XXX_PCI0
146 select SYS_HAS_CPU_NEVADA
147 select SYS_HAS_EARLY_PRINTK
148 select SYS_SUPPORTS_32BIT_KERNEL
149 select SYS_SUPPORTS_64BIT_KERNEL
150 select SYS_SUPPORTS_LITTLE_ENDIAN
152 config MACH_DECSTATION
159 select CPU_DADDI_WORKAROUNDS if 64BIT
160 select CPU_R4000_WORKAROUNDS if 64BIT
161 select CPU_R4400_WORKAROUNDS if 64BIT
162 select DMA_NONCOHERENT
165 select SYS_HAS_CPU_R3000
166 select SYS_HAS_CPU_R4X00
167 select SYS_SUPPORTS_32BIT_KERNEL
168 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
169 select SYS_SUPPORTS_LITTLE_ENDIAN
170 select SYS_SUPPORTS_128HZ
171 select SYS_SUPPORTS_256HZ
172 select SYS_SUPPORTS_1024HZ
174 This enables support for DEC's MIPS based workstations. For details
175 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
176 DECstation porting pages on <http://decstation.unix-ag.org/>.
178 If you have one of the following DECstation Models you definitely
179 want to choose R4xx0 for the CPU Type:
186 otherwise choose R3000.
189 bool "Jazz family of machines"
192 select ARCH_MAY_HAVE_PC_FDC
195 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
196 select GENERIC_ISA_DMA
197 select HAVE_PCSPKR_PLATFORM
202 select SYS_HAS_CPU_R4X00
203 select SYS_SUPPORTS_32BIT_KERNEL
204 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
205 select SYS_SUPPORTS_100HZ
207 This a family of machines based on the MIPS R4030 chipset which was
208 used by several vendors to build RISC/os and Windows NT workstations.
209 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
210 Olivetti M700-10 workstations.
213 bool "Ingenic JZ4740 based machines"
214 select SYS_HAS_CPU_MIPS32_R1
215 select SYS_SUPPORTS_32BIT_KERNEL
216 select SYS_SUPPORTS_LITTLE_ENDIAN
217 select SYS_SUPPORTS_ZBOOT_UART16550
218 select DMA_NONCOHERENT
221 select ARCH_REQUIRE_GPIOLIB
222 select SYS_HAS_EARLY_PRINTK
225 select GENERIC_IRQ_CHIP
228 bool "Lantiq based platforms"
229 select DMA_NONCOHERENT
233 select SYS_HAS_CPU_MIPS32_R1
234 select SYS_HAS_CPU_MIPS32_R2
235 select SYS_SUPPORTS_BIG_ENDIAN
236 select SYS_SUPPORTS_32BIT_KERNEL
237 select SYS_SUPPORTS_MULTITHREADING
238 select SYS_HAS_EARLY_PRINTK
239 select ARCH_REQUIRE_GPIOLIB
242 select HAVE_MACH_CLKDEV
246 select PINCTRL_LANTIQ
249 bool "LASAT Networks platforms"
252 select DMA_NONCOHERENT
253 select SYS_HAS_EARLY_PRINTK
256 select PCI_GT64XXX_PCI0
258 select R5000_CPU_SCACHE
259 select SYS_HAS_CPU_R5000
260 select SYS_SUPPORTS_32BIT_KERNEL
261 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
262 select SYS_SUPPORTS_LITTLE_ENDIAN
265 bool "Loongson family of machines"
266 select SYS_SUPPORTS_ZBOOT
268 This enables the support of Loongson family of machines.
270 Loongson is a family of general-purpose MIPS-compatible CPUs.
271 developed at Institute of Computing Technology (ICT),
272 Chinese Academy of Sciences (CAS) in the People's Republic
273 of China. The chief architect is Professor Weiwu Hu.
275 config MACH_LOONGSON1
276 bool "Loongson 1 family of machines"
277 select SYS_SUPPORTS_ZBOOT
279 This enables support for the Loongson 1 based machines.
281 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
282 the ICT (Institute of Computing Technology) and the Chinese Academy
286 bool "MIPS Malta board"
287 select ARCH_MAY_HAVE_PC_FDC
292 select DMA_NONCOHERENT
293 select GENERIC_ISA_DMA
294 select HAVE_PCSPKR_PLATFORM
300 select MIPS_BOARDS_GEN
302 select MIPS_CPU_SCACHE
303 select PCI_GT64XXX_PCI0
306 select SYS_HAS_CPU_MIPS32_R1
307 select SYS_HAS_CPU_MIPS32_R2
308 select SYS_HAS_CPU_MIPS64_R1
309 select SYS_HAS_CPU_MIPS64_R2
310 select SYS_HAS_CPU_NEVADA
311 select SYS_HAS_CPU_RM7000
312 select SYS_HAS_EARLY_PRINTK
313 select SYS_SUPPORTS_32BIT_KERNEL
314 select SYS_SUPPORTS_64BIT_KERNEL
315 select SYS_SUPPORTS_BIG_ENDIAN
316 select SYS_SUPPORTS_LITTLE_ENDIAN
317 select SYS_SUPPORTS_MIPS_CMP
318 select SYS_SUPPORTS_MULTITHREADING
319 select SYS_SUPPORTS_SMARTMIPS
320 select SYS_SUPPORTS_ZBOOT
322 This enables support for the MIPS Technologies Malta evaluation
326 bool "MIPS SEAD3 board"
331 select CPU_MIPSR2_IRQ_VI
332 select CPU_MIPSR2_IRQ_EI
333 select DMA_NONCOHERENT
336 select MIPS_BOARDS_GEN
337 select MIPS_CPU_SCACHE
339 select SYS_HAS_CPU_MIPS32_R1
340 select SYS_HAS_CPU_MIPS32_R2
341 select SYS_HAS_CPU_MIPS64_R1
342 select SYS_HAS_EARLY_PRINTK
343 select SYS_SUPPORTS_32BIT_KERNEL
344 select SYS_SUPPORTS_64BIT_KERNEL
345 select SYS_SUPPORTS_BIG_ENDIAN
346 select SYS_SUPPORTS_LITTLE_ENDIAN
347 select SYS_SUPPORTS_SMARTMIPS
348 select USB_ARCH_HAS_EHCI
349 select USB_EHCI_BIG_ENDIAN_DESC
350 select USB_EHCI_BIG_ENDIAN_MMIO
352 This enables support for the MIPS Technologies SEAD3 evaluation
356 bool "NEC EMMA2RH Mark-eins board"
360 This enables support for the NEC Electronics Mark-eins boards.
363 bool "NEC VR4100 series based machines"
366 select SYS_HAS_CPU_VR41XX
367 select ARCH_REQUIRE_GPIOLIB
370 bool "NXP STB220 board"
373 Support for NXP Semiconductors STB220 Development Board.
380 Support for NXP Semiconductors STB225 Development Board.
383 bool "NXP PNX8550 based JBS board"
385 select SYS_SUPPORTS_LITTLE_ENDIAN
387 config PNX8550_STB810
388 bool "NXP PNX8550 based STB810 board"
390 select SYS_SUPPORTS_LITTLE_ENDIAN
393 bool "PMC-Sierra MSP chipsets"
394 depends on EXPERIMENTAL
397 select DMA_NONCOHERENT
399 select NO_EXCEPT_FILL
401 select SYS_HAS_CPU_MIPS32_R1
402 select SYS_HAS_CPU_MIPS32_R2
403 select SYS_SUPPORTS_32BIT_KERNEL
404 select SYS_SUPPORTS_BIG_ENDIAN
407 select SERIAL_8250_CONSOLE
409 This adds support for the PMC-Sierra family of Multi-Service
410 Processor System-On-A-Chips. These parts include a number
411 of integrated peripherals, interfaces and DSPs in addition to
412 a variety of MIPS cores.
415 bool "PMC-Sierra Yosemite eval board"
424 select SYS_HAS_CPU_RM9000
425 select SYS_HAS_EARLY_PRINTK
426 select SYS_SUPPORTS_32BIT_KERNEL
427 select SYS_SUPPORTS_64BIT_KERNEL
428 select SYS_SUPPORTS_BIG_ENDIAN
429 select SYS_SUPPORTS_HIGHMEM
430 select SYS_SUPPORTS_SMP
432 Yosemite is an evaluation board for the RM9000x2 processor
433 manufactured by PMC-Sierra.
439 select CPU_MIPSR2_IRQ_VI
440 select CPU_MIPSR2_IRQ_EI
442 select DMA_NONCOHERENT
444 select SYS_HAS_EARLY_PRINTK
445 select SYS_HAS_CPU_MIPS32_R2
446 select SYS_SUPPORTS_32BIT_KERNEL
447 select SYS_SUPPORTS_BIG_ENDIAN
448 select SYS_SUPPORTS_HIGHMEM
449 select USB_OHCI_LITTLE_ENDIAN
451 This enables support for the Cisco PowerTV Platform.
454 bool "SGI IP22 (Indy/Indigo2)"
460 select DEFAULT_SGI_PARTITION
461 select DMA_NONCOHERENT
465 select IP22_CPU_SCACHE
467 select GENERIC_ISA_DMA_SUPPORT_BROKEN
469 select SGI_HAS_INDYDOG
475 select SYS_HAS_CPU_R4X00
476 select SYS_HAS_CPU_R5000
478 # Disable EARLY_PRINTK for now since it leads to overwritten prom
479 # memory during early boot on some machines.
481 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
482 # for a more details discussion
484 # select SYS_HAS_EARLY_PRINTK
485 select SYS_SUPPORTS_32BIT_KERNEL
486 select SYS_SUPPORTS_64BIT_KERNEL
487 select SYS_SUPPORTS_BIG_ENDIAN
489 This are the SGI Indy, Challenge S and Indigo2, as well as certain
490 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
491 that runs on these, say Y here.
494 bool "SGI IP27 (Origin200/2000)"
498 select DEFAULT_SGI_PARTITION
500 select SYS_HAS_EARLY_PRINTK
502 select NR_CPUS_DEFAULT_64
503 select SYS_HAS_CPU_R10000
504 select SYS_SUPPORTS_64BIT_KERNEL
505 select SYS_SUPPORTS_BIG_ENDIAN
506 select SYS_SUPPORTS_NUMA
507 select SYS_SUPPORTS_SMP
509 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
510 workstations. To compile a Linux kernel that runs on these, say Y
514 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
515 depends on EXPERIMENTAL
521 select DEFAULT_SGI_PARTITION
522 select DMA_NONCOHERENT
523 select GENERIC_ISA_DMA_SUPPORT_BROKEN
529 select SGI_HAS_INDYDOG
535 select SYS_HAS_CPU_R10000
537 # Disable EARLY_PRINTK for now since it leads to overwritten prom
538 # memory during early boot on some machines.
540 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
541 # for a more details discussion
543 # select SYS_HAS_EARLY_PRINTK
544 select SYS_SUPPORTS_64BIT_KERNEL
545 select SYS_SUPPORTS_BIG_ENDIAN
547 This is the SGI Indigo2 with R10000 processor. To compile a Linux
548 kernel that runs on these, say Y here.
557 select DMA_NONCOHERENT
560 select R5000_CPU_SCACHE
561 select RM7000_CPU_SCACHE
562 select SYS_HAS_CPU_R5000
563 select SYS_HAS_CPU_R10000 if BROKEN
564 select SYS_HAS_CPU_RM7000
565 select SYS_HAS_CPU_NEVADA
566 select SYS_SUPPORTS_64BIT_KERNEL
567 select SYS_SUPPORTS_BIG_ENDIAN
569 If you want this kernel to run on SGI O2 workstation, say Y here.
572 bool "Sibyte BCM91120C-CRhine"
573 depends on EXPERIMENTAL
576 select SIBYTE_BCM1120
578 select SYS_HAS_CPU_SB1
579 select SYS_SUPPORTS_BIG_ENDIAN
580 select SYS_SUPPORTS_LITTLE_ENDIAN
583 bool "Sibyte BCM91120x-Carmel"
584 depends on EXPERIMENTAL
587 select SIBYTE_BCM1120
589 select SYS_HAS_CPU_SB1
590 select SYS_SUPPORTS_BIG_ENDIAN
591 select SYS_SUPPORTS_LITTLE_ENDIAN
594 bool "Sibyte BCM91125C-CRhone"
595 depends on EXPERIMENTAL
598 select SIBYTE_BCM1125
600 select SYS_HAS_CPU_SB1
601 select SYS_SUPPORTS_BIG_ENDIAN
602 select SYS_SUPPORTS_HIGHMEM
603 select SYS_SUPPORTS_LITTLE_ENDIAN
606 bool "Sibyte BCM91125E-Rhone"
607 depends on EXPERIMENTAL
610 select SIBYTE_BCM1125H
612 select SYS_HAS_CPU_SB1
613 select SYS_SUPPORTS_BIG_ENDIAN
614 select SYS_SUPPORTS_LITTLE_ENDIAN
617 bool "Sibyte BCM91250A-SWARM"
620 select HAVE_PATA_PLATFORM
621 select NR_CPUS_DEFAULT_2
624 select SYS_HAS_CPU_SB1
625 select SYS_SUPPORTS_BIG_ENDIAN
626 select SYS_SUPPORTS_HIGHMEM
627 select SYS_SUPPORTS_LITTLE_ENDIAN
628 select ZONE_DMA32 if 64BIT
630 config SIBYTE_LITTLESUR
631 bool "Sibyte BCM91250C2-LittleSur"
632 depends on EXPERIMENTAL
635 select HAVE_PATA_PLATFORM
636 select NR_CPUS_DEFAULT_2
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_HIGHMEM
642 select SYS_SUPPORTS_LITTLE_ENDIAN
644 config SIBYTE_SENTOSA
645 bool "Sibyte BCM91250E-Sentosa"
646 depends on EXPERIMENTAL
649 select NR_CPUS_DEFAULT_2
652 select SYS_HAS_CPU_SB1
653 select SYS_SUPPORTS_BIG_ENDIAN
654 select SYS_SUPPORTS_LITTLE_ENDIAN
657 bool "Sibyte BCM91480B-BigSur"
660 select NR_CPUS_DEFAULT_4
661 select SIBYTE_BCM1x80
663 select SYS_HAS_CPU_SB1
664 select SYS_SUPPORTS_BIG_ENDIAN
665 select SYS_SUPPORTS_HIGHMEM
666 select SYS_SUPPORTS_LITTLE_ENDIAN
667 select ZONE_DMA32 if 64BIT
670 bool "SNI RM200/300/400"
671 select ARC if CPU_LITTLE_ENDIAN
672 select ARC32 if CPU_LITTLE_ENDIAN
673 select SNIPROM if CPU_BIG_ENDIAN
674 select ARCH_MAY_HAVE_PC_FDC
678 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
679 select DMA_NONCOHERENT
680 select GENERIC_ISA_DMA
681 select HAVE_PCSPKR_PLATFORM
688 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
689 select SYS_HAS_CPU_R4X00
690 select SYS_HAS_CPU_R5000
691 select SYS_HAS_CPU_R10000
692 select R5000_CPU_SCACHE
693 select SYS_HAS_EARLY_PRINTK
694 select SYS_SUPPORTS_32BIT_KERNEL
695 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
696 select SYS_SUPPORTS_BIG_ENDIAN
697 select SYS_SUPPORTS_HIGHMEM
698 select SYS_SUPPORTS_LITTLE_ENDIAN
700 The SNI RM200/300/400 are MIPS-based machines manufactured by
701 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
702 Technology and now in turn merged with Fujitsu. Say Y here to
703 support this machine type.
706 bool "Toshiba TX39 series based machines"
709 bool "Toshiba TX49 series based machines"
711 config MIKROTIK_RB532
712 bool "Mikrotik RB532 boards"
715 select DMA_NONCOHERENT
718 select SYS_HAS_CPU_MIPS32_R1
719 select SYS_SUPPORTS_32BIT_KERNEL
720 select SYS_SUPPORTS_LITTLE_ENDIAN
723 select ARCH_REQUIRE_GPIOLIB
725 Support the Mikrotik(tm) RouterBoard 532 series,
726 based on the IDT RC32434 SoC.
729 bool "Wind River PPMC board"
734 select DMA_NONCOHERENT
736 select PCI_GT64XXX_PCI0
738 select SYS_HAS_CPU_MIPS32_R1
739 select SYS_HAS_CPU_MIPS32_R2
740 select SYS_HAS_CPU_MIPS64_R1
741 select SYS_HAS_CPU_NEVADA
742 select SYS_HAS_CPU_RM7000
743 select SYS_SUPPORTS_32BIT_KERNEL
744 select SYS_SUPPORTS_64BIT_KERNEL
745 select SYS_SUPPORTS_BIG_ENDIAN
746 select SYS_SUPPORTS_LITTLE_ENDIAN
748 This enables support for the Wind River MIPS32 4KC PPMC evaluation
749 board, which is based on GT64120 bridge chip.
751 config CAVIUM_OCTEON_SIMULATOR
752 bool "Cavium Networks Octeon Simulator"
754 select 64BIT_PHYS_ADDR
756 select SYS_SUPPORTS_64BIT_KERNEL
757 select SYS_SUPPORTS_BIG_ENDIAN
758 select SYS_SUPPORTS_HOTPLUG_CPU
759 select SYS_HAS_CPU_CAVIUM_OCTEON
762 The Octeon simulator is software performance model of the Cavium
763 Octeon Processor. It supports simulating Octeon processors on x86
766 config CAVIUM_OCTEON_REFERENCE_BOARD
767 bool "Cavium Networks Octeon reference board"
769 select 64BIT_PHYS_ADDR
771 select SYS_SUPPORTS_64BIT_KERNEL
772 select SYS_SUPPORTS_BIG_ENDIAN
773 select SYS_SUPPORTS_HOTPLUG_CPU
774 select SYS_HAS_EARLY_PRINTK
775 select SYS_HAS_CPU_CAVIUM_OCTEON
778 select ARCH_SUPPORTS_MSI
780 select USB_ARCH_HAS_OHCI
781 select USB_ARCH_HAS_EHCI
784 This option supports all of the Octeon reference boards from Cavium
785 Networks. It builds a kernel that dynamically determines the Octeon
786 CPU type and supports all known board reference implementations.
787 Some of the supported boards are:
794 Say Y here for most Octeon reference boards.
797 bool "Netlogic XLR/XLS based systems"
798 depends on EXPERIMENTAL
801 select SYS_HAS_CPU_XLR
802 select SYS_SUPPORTS_SMP
805 select SYS_SUPPORTS_32BIT_KERNEL
806 select SYS_SUPPORTS_64BIT_KERNEL
807 select 64BIT_PHYS_ADDR
808 select SYS_SUPPORTS_BIG_ENDIAN
809 select SYS_SUPPORTS_HIGHMEM
811 select NR_CPUS_DEFAULT_32
815 select ARCH_SUPPORTS_MSI
816 select ZONE_DMA if 64BIT
818 select SYS_HAS_EARLY_PRINTK
819 select USB_ARCH_HAS_OHCI if USB_SUPPORT
820 select USB_ARCH_HAS_EHCI if USB_SUPPORT
822 Support for systems based on Netlogic XLR and XLS processors.
823 Say Y here if you have a XLR or XLS based board.
826 bool "Netlogic XLP based systems"
827 depends on EXPERIMENTAL
830 select SYS_HAS_CPU_XLP
831 select SYS_SUPPORTS_SMP
833 select SYS_SUPPORTS_32BIT_KERNEL
834 select SYS_SUPPORTS_64BIT_KERNEL
835 select 64BIT_PHYS_ADDR
836 select SYS_SUPPORTS_BIG_ENDIAN
837 select SYS_SUPPORTS_LITTLE_ENDIAN
838 select SYS_SUPPORTS_HIGHMEM
840 select NR_CPUS_DEFAULT_32
844 select ZONE_DMA if 64BIT
846 select SYS_HAS_EARLY_PRINTK
849 This board is based on Netlogic XLP Processor.
850 Say Y here if you have a XLP based board.
854 source "arch/mips/alchemy/Kconfig"
855 source "arch/mips/ath79/Kconfig"
856 source "arch/mips/bcm47xx/Kconfig"
857 source "arch/mips/bcm63xx/Kconfig"
858 source "arch/mips/jazz/Kconfig"
859 source "arch/mips/jz4740/Kconfig"
860 source "arch/mips/lantiq/Kconfig"
861 source "arch/mips/lasat/Kconfig"
862 source "arch/mips/pmc-sierra/Kconfig"
863 source "arch/mips/powertv/Kconfig"
864 source "arch/mips/sgi-ip27/Kconfig"
865 source "arch/mips/sibyte/Kconfig"
866 source "arch/mips/txx9/Kconfig"
867 source "arch/mips/vr41xx/Kconfig"
868 source "arch/mips/cavium-octeon/Kconfig"
869 source "arch/mips/loongson/Kconfig"
870 source "arch/mips/loongson1/Kconfig"
871 source "arch/mips/netlogic/Kconfig"
875 config RWSEM_GENERIC_SPINLOCK
879 config RWSEM_XCHGADD_ALGORITHM
882 config ARCH_HAS_ILOG2_U32
886 config ARCH_HAS_ILOG2_U64
890 config GENERIC_HWEIGHT
894 config GENERIC_CALIBRATE_DELAY
898 config SCHED_OMIT_FRAME_POINTER
903 # Select some configuration options automatically based on user selections.
908 config ARCH_MAY_HAVE_PC_FDC
957 select ARCH_REQUIRE_GPIOLIB
963 config ARCH_DMA_ADDR_T_64BIT
964 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
969 config DMA_NONCOHERENT
971 select NEED_DMA_MAP_STATE
973 config NEED_DMA_MAP_STATE
976 config SYS_HAS_EARLY_PRINTK
980 bool "Support for hot-pluggable CPUs"
981 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
983 Say Y here to allow turning CPUs off and on. CPUs can be
984 controlled through /sys/devices/system/cpu.
985 (Note: power management support will enable this option
986 automatically on SMP systems. )
987 Say N if you want to disable CPU hotplug.
989 config SYS_SUPPORTS_HOTPLUG_CPU
1004 config MIPS_DISABLE_OBSOLETE_IDE
1016 config GENERIC_ISA_DMA
1018 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1021 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1023 select GENERIC_ISA_DMA
1031 config HOLES_IN_ZONE
1035 # Endianness selection. Sufficiently obscure so many users don't know what to
1036 # answer,so we try hard to limit the available choices. Also the use of a
1037 # choice statement should be more obvious to the user.
1040 prompt "Endianness selection"
1042 Some MIPS machines can be configured for either little or big endian
1043 byte order. These modes require different kernels and a different
1044 Linux distribution. In general there is one preferred byteorder for a
1045 particular system but some systems are just as commonly used in the
1046 one or the other endianness.
1048 config CPU_BIG_ENDIAN
1050 depends on SYS_SUPPORTS_BIG_ENDIAN
1052 config CPU_LITTLE_ENDIAN
1053 bool "Little endian"
1054 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1062 config SYS_SUPPORTS_APM_EMULATION
1065 config SYS_SUPPORTS_BIG_ENDIAN
1068 config SYS_SUPPORTS_LITTLE_ENDIAN
1071 config SYS_SUPPORTS_HUGETLBFS
1073 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1100 config MIPS_BOARDS_GEN
1103 config PCI_GT64XXX_PCI0
1106 config NO_EXCEPT_FILL
1111 select SERIAL_RM9000
1117 select DMA_NONCOHERENT
1119 select SWAP_IO_SPACE
1120 select SYS_HAS_CPU_R5500
1121 select SYS_SUPPORTS_32BIT_KERNEL
1122 select SYS_SUPPORTS_64BIT_KERNEL
1123 select SYS_SUPPORTS_BIG_ENDIAN
1130 select DMA_NONCOHERENT
1131 select SYS_HAS_CPU_MIPS32_R2
1132 select SYS_SUPPORTS_32BIT_KERNEL
1133 select SYS_SUPPORTS_LITTLE_ENDIAN
1134 select SYS_SUPPORTS_BIG_ENDIAN
1136 select CPU_MIPSR2_IRQ_VI
1148 select DMA_NONCOHERENT
1150 select SYS_HAS_CPU_MIPS32_R1
1151 select SYS_HAS_EARLY_PRINTK
1152 select SYS_SUPPORTS_32BIT_KERNEL
1155 config SWAP_IO_SPACE
1158 config SERIAL_RM9000
1161 config SGI_HAS_INDYDOG
1173 config SGI_HAS_ZILOG
1176 config SGI_HAS_I8042
1179 config DEFAULT_SGI_PARTITION
1191 config MIPS_L1_CACHE_SHIFT
1193 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1194 default "6" if MIPS_CPU_SCACHE
1195 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1198 config HAVE_STD_PC_SERIAL_PORT
1202 bool "ARC console support"
1203 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1207 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1212 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1221 menu "CPU selection"
1227 config CPU_LOONGSON2E
1229 depends on SYS_HAS_CPU_LOONGSON2E
1230 select CPU_LOONGSON2
1232 The Loongson 2E processor implements the MIPS III instruction set
1233 with many extensions.
1235 It has an internal FPGA northbridge, which is compatible to
1238 config CPU_LOONGSON2F
1240 depends on SYS_HAS_CPU_LOONGSON2F
1241 select CPU_LOONGSON2
1243 select ARCH_REQUIRE_GPIOLIB
1245 The Loongson 2F processor implements the MIPS III instruction set
1246 with many extensions.
1248 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1249 have a similar programming interface with FPGA northbridge used in
1252 config CPU_LOONGSON1B
1254 depends on SYS_HAS_CPU_LOONGSON1B
1255 select CPU_LOONGSON1
1257 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1258 release 2 instruction set.
1260 config CPU_MIPS32_R1
1261 bool "MIPS32 Release 1"
1262 depends on SYS_HAS_CPU_MIPS32_R1
1263 select CPU_HAS_PREFETCH
1264 select CPU_SUPPORTS_32BIT_KERNEL
1265 select CPU_SUPPORTS_HIGHMEM
1267 Choose this option to build a kernel for release 1 or later of the
1268 MIPS32 architecture. Most modern embedded systems with a 32-bit
1269 MIPS processor are based on a MIPS32 processor. If you know the
1270 specific type of processor in your system, choose those that one
1271 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1272 Release 2 of the MIPS32 architecture is available since several
1273 years so chances are you even have a MIPS32 Release 2 processor
1274 in which case you should choose CPU_MIPS32_R2 instead for better
1277 config CPU_MIPS32_R2
1278 bool "MIPS32 Release 2"
1279 depends on SYS_HAS_CPU_MIPS32_R2
1280 select CPU_HAS_PREFETCH
1281 select CPU_SUPPORTS_32BIT_KERNEL
1282 select CPU_SUPPORTS_HIGHMEM
1284 Choose this option to build a kernel for release 2 or later of the
1285 MIPS32 architecture. Most modern embedded systems with a 32-bit
1286 MIPS processor are based on a MIPS32 processor. If you know the
1287 specific type of processor in your system, choose those that one
1288 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1290 config CPU_MIPS64_R1
1291 bool "MIPS64 Release 1"
1292 depends on SYS_HAS_CPU_MIPS64_R1
1293 select CPU_HAS_PREFETCH
1294 select CPU_SUPPORTS_32BIT_KERNEL
1295 select CPU_SUPPORTS_64BIT_KERNEL
1296 select CPU_SUPPORTS_HIGHMEM
1297 select CPU_SUPPORTS_HUGEPAGES
1299 Choose this option to build a kernel for release 1 or later of the
1300 MIPS64 architecture. Many modern embedded systems with a 64-bit
1301 MIPS processor are based on a MIPS64 processor. If you know the
1302 specific type of processor in your system, choose those that one
1303 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1304 Release 2 of the MIPS64 architecture is available since several
1305 years so chances are you even have a MIPS64 Release 2 processor
1306 in which case you should choose CPU_MIPS64_R2 instead for better
1309 config CPU_MIPS64_R2
1310 bool "MIPS64 Release 2"
1311 depends on SYS_HAS_CPU_MIPS64_R2
1312 select CPU_HAS_PREFETCH
1313 select CPU_SUPPORTS_32BIT_KERNEL
1314 select CPU_SUPPORTS_64BIT_KERNEL
1315 select CPU_SUPPORTS_HIGHMEM
1316 select CPU_SUPPORTS_HUGEPAGES
1318 Choose this option to build a kernel for release 2 or later of the
1319 MIPS64 architecture. Many modern embedded systems with a 64-bit
1320 MIPS processor are based on a MIPS64 processor. If you know the
1321 specific type of processor in your system, choose those that one
1322 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1326 depends on SYS_HAS_CPU_R3000
1328 select CPU_SUPPORTS_32BIT_KERNEL
1329 select CPU_SUPPORTS_HIGHMEM
1331 Please make sure to pick the right CPU type. Linux/MIPS is not
1332 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1333 *not* work on R4000 machines and vice versa. However, since most
1334 of the supported machines have an R4000 (or similar) CPU, R4x00
1335 might be a safe bet. If the resulting kernel does not work,
1336 try to recompile with R3000.
1340 depends on SYS_HAS_CPU_TX39XX
1341 select CPU_SUPPORTS_32BIT_KERNEL
1345 depends on SYS_HAS_CPU_VR41XX
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1349 The options selects support for the NEC VR4100 series of processors.
1350 Only choose this option if you have one of these processors as a
1351 kernel built with this option will not run on any other type of
1352 processor or vice versa.
1356 depends on SYS_HAS_CPU_R4300
1357 select CPU_SUPPORTS_32BIT_KERNEL
1358 select CPU_SUPPORTS_64BIT_KERNEL
1360 MIPS Technologies R4300-series processors.
1364 depends on SYS_HAS_CPU_R4X00
1365 select CPU_SUPPORTS_32BIT_KERNEL
1366 select CPU_SUPPORTS_64BIT_KERNEL
1368 MIPS Technologies R4000-series processors other than 4300, including
1369 the R4000, R4400, R4600, and 4700.
1373 depends on SYS_HAS_CPU_TX49XX
1374 select CPU_HAS_PREFETCH
1375 select CPU_SUPPORTS_32BIT_KERNEL
1376 select CPU_SUPPORTS_64BIT_KERNEL
1380 depends on SYS_HAS_CPU_R5000
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1384 MIPS Technologies R5000-series processors other than the Nevada.
1388 depends on SYS_HAS_CPU_R5432
1389 select CPU_SUPPORTS_32BIT_KERNEL
1390 select CPU_SUPPORTS_64BIT_KERNEL
1394 depends on SYS_HAS_CPU_R5500
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_64BIT_KERNEL
1397 select CPU_SUPPORTS_HUGEPAGES
1399 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1404 depends on EXPERIMENTAL
1405 depends on SYS_HAS_CPU_R6000
1406 select CPU_SUPPORTS_32BIT_KERNEL
1408 MIPS Technologies R6000 and R6000A series processors. Note these
1409 processors are extremely rare and the support for them is incomplete.
1413 depends on SYS_HAS_CPU_NEVADA
1414 select CPU_SUPPORTS_32BIT_KERNEL
1415 select CPU_SUPPORTS_64BIT_KERNEL
1417 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1421 depends on EXPERIMENTAL
1422 depends on SYS_HAS_CPU_R8000
1423 select CPU_HAS_PREFETCH
1424 select CPU_SUPPORTS_64BIT_KERNEL
1426 MIPS Technologies R8000 processors. Note these processors are
1427 uncommon and the support for them is incomplete.
1431 depends on SYS_HAS_CPU_R10000
1432 select CPU_HAS_PREFETCH
1433 select CPU_SUPPORTS_32BIT_KERNEL
1434 select CPU_SUPPORTS_64BIT_KERNEL
1435 select CPU_SUPPORTS_HIGHMEM
1437 MIPS Technologies R10000-series processors.
1441 depends on SYS_HAS_CPU_RM7000
1442 select CPU_HAS_PREFETCH
1443 select CPU_SUPPORTS_32BIT_KERNEL
1444 select CPU_SUPPORTS_64BIT_KERNEL
1445 select CPU_SUPPORTS_HIGHMEM
1449 depends on SYS_HAS_CPU_RM9000
1450 select CPU_HAS_PREFETCH
1451 select CPU_SUPPORTS_32BIT_KERNEL
1452 select CPU_SUPPORTS_64BIT_KERNEL
1453 select CPU_SUPPORTS_HIGHMEM
1454 select WEAK_ORDERING
1458 depends on SYS_HAS_CPU_SB1
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1461 select CPU_SUPPORTS_HIGHMEM
1462 select WEAK_ORDERING
1464 config CPU_CAVIUM_OCTEON
1465 bool "Cavium Octeon processor"
1466 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1467 select ARCH_SPARSEMEM_ENABLE
1468 select CPU_HAS_PREFETCH
1469 select CPU_SUPPORTS_64BIT_KERNEL
1470 select SYS_SUPPORTS_SMP
1471 select NR_CPUS_DEFAULT_16
1472 select WEAK_ORDERING
1473 select CPU_SUPPORTS_HIGHMEM
1474 select CPU_SUPPORTS_HUGEPAGES
1478 The Cavium Octeon processor is a highly integrated chip containing
1479 many ethernet hardware widgets for networking tasks. The processor
1480 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1481 Full details can be found at http://www.caviumnetworks.com.
1483 config CPU_BMIPS3300
1485 depends on SYS_HAS_CPU_BMIPS3300
1488 Broadcom BMIPS3300 processors.
1490 config CPU_BMIPS4350
1492 depends on SYS_HAS_CPU_BMIPS4350
1494 select SYS_SUPPORTS_SMP
1495 select SYS_SUPPORTS_HOTPLUG_CPU
1497 Broadcom BMIPS4350 ("VIPER") processors.
1499 config CPU_BMIPS4380
1501 depends on SYS_HAS_CPU_BMIPS4380
1503 select SYS_SUPPORTS_SMP
1504 select SYS_SUPPORTS_HOTPLUG_CPU
1506 Broadcom BMIPS4380 processors.
1508 config CPU_BMIPS5000
1510 depends on SYS_HAS_CPU_BMIPS5000
1512 select CPU_SUPPORTS_HIGHMEM
1513 select MIPS_CPU_SCACHE
1514 select SYS_SUPPORTS_SMP
1515 select SYS_SUPPORTS_HOTPLUG_CPU
1517 Broadcom BMIPS5000 processors.
1520 bool "Netlogic XLR SoC"
1521 depends on SYS_HAS_CPU_XLR
1522 select CPU_SUPPORTS_32BIT_KERNEL
1523 select CPU_SUPPORTS_64BIT_KERNEL
1524 select CPU_SUPPORTS_HIGHMEM
1525 select WEAK_ORDERING
1526 select WEAK_REORDERING_BEYOND_LLSC
1527 select CPU_SUPPORTS_HUGEPAGES
1529 Netlogic Microsystems XLR/XLS processors.
1532 bool "Netlogic XLP SoC"
1533 depends on SYS_HAS_CPU_XLP
1534 select CPU_SUPPORTS_32BIT_KERNEL
1535 select CPU_SUPPORTS_64BIT_KERNEL
1536 select CPU_SUPPORTS_HIGHMEM
1538 select WEAK_ORDERING
1539 select WEAK_REORDERING_BEYOND_LLSC
1540 select CPU_HAS_PREFETCH
1542 Netlogic Microsystems XLP processors.
1546 config CPU_NOP_WORKAROUNDS
1549 config CPU_JUMP_WORKAROUNDS
1552 config CPU_LOONGSON2F_WORKAROUNDS
1553 bool "Loongson 2F Workarounds"
1555 select CPU_NOP_WORKAROUNDS
1556 select CPU_JUMP_WORKAROUNDS
1558 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1559 require workarounds. Without workarounds the system may hang
1560 unexpectedly. For more information please refer to the gas
1561 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1563 Loongson 2F03 and later have fixed these issues and no workarounds
1564 are needed. The workarounds have no significant side effect on them
1565 but may decrease the performance of the system so this option should
1566 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1569 If unsure, please say Y.
1570 endif # CPU_LOONGSON2F
1572 config SYS_SUPPORTS_ZBOOT
1574 select HAVE_KERNEL_GZIP
1575 select HAVE_KERNEL_BZIP2
1576 select HAVE_KERNEL_LZMA
1577 select HAVE_KERNEL_LZO
1579 config SYS_SUPPORTS_ZBOOT_UART16550
1581 select SYS_SUPPORTS_ZBOOT
1583 config CPU_LOONGSON2
1585 select CPU_SUPPORTS_32BIT_KERNEL
1586 select CPU_SUPPORTS_64BIT_KERNEL
1587 select CPU_SUPPORTS_HIGHMEM
1589 config CPU_LOONGSON1
1593 select CPU_HAS_PREFETCH
1594 select CPU_SUPPORTS_32BIT_KERNEL
1595 select CPU_SUPPORTS_HIGHMEM
1600 select CPU_SUPPORTS_32BIT_KERNEL
1601 select DMA_NONCOHERENT
1603 select SWAP_IO_SPACE
1604 select WEAK_ORDERING
1606 config SYS_HAS_CPU_LOONGSON2E
1609 config SYS_HAS_CPU_LOONGSON2F
1611 select CPU_SUPPORTS_CPUFREQ
1612 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1613 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1615 config SYS_HAS_CPU_LOONGSON1B
1618 config SYS_HAS_CPU_MIPS32_R1
1621 config SYS_HAS_CPU_MIPS32_R2
1624 config SYS_HAS_CPU_MIPS64_R1
1627 config SYS_HAS_CPU_MIPS64_R2
1630 config SYS_HAS_CPU_R3000
1633 config SYS_HAS_CPU_TX39XX
1636 config SYS_HAS_CPU_VR41XX
1639 config SYS_HAS_CPU_R4300
1642 config SYS_HAS_CPU_R4X00
1645 config SYS_HAS_CPU_TX49XX
1648 config SYS_HAS_CPU_R5000
1651 config SYS_HAS_CPU_R5432
1654 config SYS_HAS_CPU_R5500
1657 config SYS_HAS_CPU_R6000
1660 config SYS_HAS_CPU_NEVADA
1663 config SYS_HAS_CPU_R8000
1666 config SYS_HAS_CPU_R10000
1669 config SYS_HAS_CPU_RM7000
1672 config SYS_HAS_CPU_RM9000
1675 config SYS_HAS_CPU_SB1
1678 config SYS_HAS_CPU_CAVIUM_OCTEON
1681 config SYS_HAS_CPU_BMIPS3300
1684 config SYS_HAS_CPU_BMIPS4350
1687 config SYS_HAS_CPU_BMIPS4380
1690 config SYS_HAS_CPU_BMIPS5000
1693 config SYS_HAS_CPU_XLR
1696 config SYS_HAS_CPU_XLP
1700 # CPU may reorder R->R, R->W, W->R, W->W
1701 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1703 config WEAK_ORDERING
1707 # CPU may reorder reads and writes beyond LL/SC
1708 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1710 config WEAK_REORDERING_BEYOND_LLSC
1715 # These two indicate any level of the MIPS32 and MIPS64 architecture
1719 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1723 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1726 # These two indicate the revision of the architecture, either Release 1 or Release 2
1730 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1734 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1736 config SYS_SUPPORTS_32BIT_KERNEL
1738 config SYS_SUPPORTS_64BIT_KERNEL
1740 config CPU_SUPPORTS_32BIT_KERNEL
1742 config CPU_SUPPORTS_64BIT_KERNEL
1744 config CPU_SUPPORTS_CPUFREQ
1746 config CPU_SUPPORTS_ADDRWINCFG
1748 config CPU_SUPPORTS_HUGEPAGES
1750 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1752 config MIPS_PGD_C0_CONTEXT
1754 default y if 64BIT && CPU_MIPSR2
1757 # Set to y for ptrace access to watch registers.
1759 config HARDWARE_WATCHPOINTS
1761 default y if CPU_MIPSR1 || CPU_MIPSR2
1766 prompt "Kernel code model"
1768 You should only select this option if you have a workload that
1769 actually benefits from 64-bit processing or if your machine has
1770 large memory. You will only be presented a single option in this
1771 menu if your system does not support both 32-bit and 64-bit kernels.
1774 bool "32-bit kernel"
1775 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1778 Select this option if you want to build a 32-bit kernel.
1780 bool "64-bit kernel"
1781 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1782 select HAVE_SYSCALL_WRAPPERS
1784 Select this option if you want to build a 64-bit kernel.
1789 prompt "Kernel page size"
1790 default PAGE_SIZE_4KB
1792 config PAGE_SIZE_4KB
1794 depends on !CPU_LOONGSON2
1796 This option select the standard 4kB Linux page size. On some
1797 R3000-family processors this is the only available page size. Using
1798 4kB page size will minimize memory consumption and is therefore
1799 recommended for low memory systems.
1801 config PAGE_SIZE_8KB
1803 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1805 Using 8kB page size will result in higher performance kernel at
1806 the price of higher memory consumption. This option is available
1807 only on R8000 and cnMIPS processors. Note that you will need a
1808 suitable Linux distribution to support this.
1810 config PAGE_SIZE_16KB
1812 depends on !CPU_R3000 && !CPU_TX39XX
1814 Using 16kB page size will result in higher performance kernel at
1815 the price of higher memory consumption. This option is available on
1816 all non-R3000 family processors. Note that you will need a suitable
1817 Linux distribution to support this.
1819 config PAGE_SIZE_32KB
1821 depends on CPU_CAVIUM_OCTEON
1823 Using 32kB page size will result in higher performance kernel at
1824 the price of higher memory consumption. This option is available
1825 only on cnMIPS cores. Note that you will need a suitable Linux
1826 distribution to support this.
1828 config PAGE_SIZE_64KB
1830 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1832 Using 64kB page size will result in higher performance kernel at
1833 the price of higher memory consumption. This option is available on
1834 all non-R3000 family processor. Not that at the time of this
1835 writing this option is still high experimental.
1839 config FORCE_MAX_ZONEORDER
1840 int "Maximum zone order"
1841 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1842 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1843 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1844 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1845 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1846 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1850 The kernel memory allocator divides physically contiguous memory
1851 blocks into "zones", where each zone is a power of two number of
1852 pages. This option selects the largest power of two that the kernel
1853 keeps in the memory allocator. If you need to allocate very large
1854 blocks of physically contiguous memory, then you may need to
1855 increase this value.
1857 This config option is actually maximum order plus one. For example,
1858 a value of 11 means that the largest free memory block is 2^10 pages.
1860 The page size is not necessarily 4KB. Keep this in mind
1861 when choosing a value for this option.
1866 config IP22_CPU_SCACHE
1871 # Support for a MIPS32 / MIPS64 style S-caches
1873 config MIPS_CPU_SCACHE
1877 config R5000_CPU_SCACHE
1881 config RM7000_CPU_SCACHE
1885 config SIBYTE_DMA_PAGEOPS
1886 bool "Use DMA to clear/copy pages"
1889 Instead of using the CPU to zero and copy pages, use a Data Mover
1890 channel. These DMA channels are otherwise unused by the standard
1891 SiByte Linux port. Seems to give a small performance benefit.
1893 config CPU_HAS_PREFETCH
1896 config CPU_GENERIC_DUMP_TLB
1898 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1902 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1904 config CPU_R4K_CACHE_TLB
1906 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1909 prompt "MIPS MT options"
1911 config MIPS_MT_DISABLED
1912 bool "Disable multithreading support."
1914 Use this option if your workload can't take advantage of
1915 MIPS hardware multithreading support. On systems that don't have
1916 the option of an MT-enabled processor this option will be the only
1917 option in this menu.
1920 bool "Use 1 TC on each available VPE for SMP"
1921 depends on SYS_SUPPORTS_MULTITHREADING
1922 select CPU_MIPSR2_IRQ_VI
1923 select CPU_MIPSR2_IRQ_EI
1925 select NR_CPUS_DEFAULT_2
1927 select SYS_SUPPORTS_SCHED_SMT if SMP
1928 select SYS_SUPPORTS_SMP
1931 This is a kernel model which is known a VSMP but lately has been
1932 marketesed into SMVP.
1933 Virtual SMP uses the processor's VPEs to implement virtual
1934 processors. In currently available configuration of the 34K processor
1935 this allows for a dual processor. Both processors will share the same
1936 primary caches; each will obtain the half of the TLB for it's own
1937 exclusive use. For a layman this model can be described as similar to
1938 what Intel calls Hyperthreading.
1940 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1943 bool "SMTC: Use all TCs on all VPEs for SMP"
1944 depends on CPU_MIPS32_R2
1945 #depends on CPU_MIPS64_R2 # once there is hardware ...
1946 depends on SYS_SUPPORTS_MULTITHREADING
1947 select CPU_MIPSR2_IRQ_VI
1948 select CPU_MIPSR2_IRQ_EI
1950 select NR_CPUS_DEFAULT_8
1952 select SYS_SUPPORTS_SMP
1955 This is a kernel model which is known a SMTC or lately has been
1956 marketesed into SMVP.
1957 is presenting the available TC's of the core as processors to Linux.
1958 On currently available 34K processors this means a Linux system will
1959 see up to 5 processors. The implementation of the SMTC kernel differs
1960 significantly from VSMP and cannot efficiently coexist in the same
1961 kernel binary so the choice between VSMP and SMTC is a compile time
1964 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1972 bool "SMT (multithreading) scheduler support"
1973 depends on SYS_SUPPORTS_SCHED_SMT
1976 SMT scheduler support improves the CPU scheduler's decision making
1977 when dealing with MIPS MT enabled cores at a cost of slightly
1978 increased overhead in some places. If unsure say N here.
1980 config SYS_SUPPORTS_SCHED_SMT
1983 config SYS_SUPPORTS_MULTITHREADING
1986 config MIPS_MT_FPAFF
1987 bool "Dynamic FPU affinity for FP-intensive threads"
1989 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1991 config MIPS_VPE_LOADER
1992 bool "VPE loader support."
1993 depends on SYS_SUPPORTS_MULTITHREADING
1994 select CPU_MIPSR2_IRQ_VI
1995 select CPU_MIPSR2_IRQ_EI
1998 Includes a loader for loading an elf relocatable object
1999 onto another VPE and running it.
2001 config MIPS_MT_SMTC_IM_BACKSTOP
2002 bool "Use per-TC register bits as backstop for inhibited IM bits"
2003 depends on MIPS_MT_SMTC
2006 To support multiple TC microthreads acting as "CPUs" within
2007 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2008 during interrupt handling. To support legacy drivers and interrupt
2009 controller management code, SMTC has a "backstop" to track and
2010 if necessary restore the interrupt mask. This has some performance
2011 impact on interrupt service overhead.
2013 config MIPS_MT_SMTC_IRQAFF
2014 bool "Support IRQ affinity API"
2015 depends on MIPS_MT_SMTC
2018 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2019 for SMTC Linux kernel. Requires platform support, of which
2020 an example can be found in the MIPS kernel i8259 and Malta
2021 platform code. Adds some overhead to interrupt dispatch, and
2022 should be used only if you know what you are doing.
2024 config MIPS_VPE_LOADER_TOM
2025 bool "Load VPE program into memory hidden from linux"
2026 depends on MIPS_VPE_LOADER
2029 The loader can use memory that is present but has been hidden from
2030 Linux using the kernel command line option "mem=xxMB". It's up to
2031 you to ensure the amount you put in the option and the space your
2032 program requires is less or equal to the amount physically present.
2034 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2035 config MIPS_VPE_APSP_API
2036 bool "Enable support for AP/SP API (RTLX)"
2037 depends on MIPS_VPE_LOADER
2040 config MIPS_APSP_KSPD
2042 depends on MIPS_VPE_APSP_API
2045 KSPD is a kernel daemon that accepts syscall requests from the SP
2046 side, actions them and returns the results. It also handles the
2047 "exit" syscall notifying other kernel modules the SP program is
2048 exiting. You probably want to say yes here.
2051 bool "MIPS CMP framework support"
2052 depends on SYS_SUPPORTS_MIPS_CMP
2054 select SYS_SUPPORTS_SMP
2055 select SYS_SUPPORTS_SCHED_SMT if SMP
2056 select WEAK_ORDERING
2059 This is a placeholder option for the GCMP work. It will need to
2060 be handled differently...
2062 config SB1_PASS_1_WORKAROUNDS
2064 depends on CPU_SB1_PASS_1
2067 config SB1_PASS_2_WORKAROUNDS
2069 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2072 config SB1_PASS_2_1_WORKAROUNDS
2074 depends on CPU_SB1 && CPU_SB1_PASS_2
2077 config 64BIT_PHYS_ADDR
2080 config ARCH_PHYS_ADDR_T_64BIT
2081 def_bool 64BIT_PHYS_ADDR
2083 config CPU_HAS_SMARTMIPS
2084 depends on SYS_SUPPORTS_SMARTMIPS
2085 bool "Support for the SmartMIPS ASE"
2087 SmartMIPS is a extension of the MIPS32 architecture aimed at
2088 increased security at both hardware and software level for
2089 smartcards. Enabling this option will allow proper use of the
2090 SmartMIPS instructions by Linux applications. However a kernel with
2091 this option will not work on a MIPS core without SmartMIPS core. If
2092 you don't know you probably don't have SmartMIPS and should say N
2102 # Vectored interrupt mode is an R2 feature
2104 config CPU_MIPSR2_IRQ_VI
2108 # Extended interrupt mode is an R2 feature
2110 config CPU_MIPSR2_IRQ_EI
2115 depends on !CPU_R3000
2121 config CPU_DADDI_WORKAROUNDS
2124 config CPU_R4000_WORKAROUNDS
2126 select CPU_R4400_WORKAROUNDS
2128 config CPU_R4400_WORKAROUNDS
2132 # - Highmem only makes sense for the 32-bit kernel.
2133 # - The current highmem code will only work properly on physically indexed
2134 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2135 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2136 # moment we protect the user and offer the highmem option only on machines
2137 # where it's known to be safe. This will not offer highmem on a few systems
2138 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2139 # indexed CPUs but we're playing safe.
2140 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2141 # know they might have memory configurations that could make use of highmem
2145 bool "High Memory Support"
2146 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2148 config CPU_SUPPORTS_HIGHMEM
2151 config SYS_SUPPORTS_HIGHMEM
2154 config SYS_SUPPORTS_SMARTMIPS
2157 config ARCH_FLATMEM_ENABLE
2159 depends on !NUMA && !CPU_LOONGSON2
2161 config ARCH_DISCONTIGMEM_ENABLE
2163 default y if SGI_IP27
2165 Say Y to support efficient handling of discontiguous physical memory,
2166 for architectures which are either NUMA (Non-Uniform Memory Access)
2167 or have huge holes in the physical address space for other reasons.
2168 See <file:Documentation/vm/numa> for more.
2170 config ARCH_SPARSEMEM_ENABLE
2172 select SPARSEMEM_STATIC
2176 depends on SYS_SUPPORTS_NUMA
2178 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2179 Access). This option improves performance on systems with more
2180 than two nodes; on two node systems it is generally better to
2181 leave it disabled; on single node systems disable this option
2184 config SYS_SUPPORTS_NUMA
2190 depends on NEED_MULTIPLE_NODES
2192 config HW_PERF_EVENTS
2193 bool "Enable hardware performance counter support for perf events"
2194 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2197 Enable hardware performance counter support for perf events. If
2198 disabled, perf events will use software events only.
2203 bool "Multi-Processing support"
2204 depends on SYS_SUPPORTS_SMP
2206 select USE_GENERIC_SMP_HELPERS
2208 This enables support for systems with more than one CPU. If you have
2209 a system with only one CPU, like most personal computers, say N. If
2210 you have a system with more than one CPU, say Y.
2212 If you say N here, the kernel will run on single and multiprocessor
2213 machines, but will use only one CPU of a multiprocessor machine. If
2214 you say Y here, the kernel will run on many, but not all,
2215 singleprocessor machines. On a singleprocessor machine, the kernel
2216 will run faster if you say N here.
2218 People using multiprocessor machines who say Y here should also say
2219 Y to "Enhanced Real Time Clock Support", below.
2221 See also the SMP-HOWTO available at
2222 <http://www.tldp.org/docs.html#howto>.
2224 If you don't know what to do here, say N.
2229 config SYS_SUPPORTS_MIPS_CMP
2232 config SYS_SUPPORTS_SMP
2235 config NR_CPUS_DEFAULT_1
2238 config NR_CPUS_DEFAULT_2
2241 config NR_CPUS_DEFAULT_4
2244 config NR_CPUS_DEFAULT_8
2247 config NR_CPUS_DEFAULT_16
2250 config NR_CPUS_DEFAULT_32
2253 config NR_CPUS_DEFAULT_64
2257 int "Maximum number of CPUs (2-64)"
2258 range 1 64 if NR_CPUS_DEFAULT_1
2260 default "1" if NR_CPUS_DEFAULT_1
2261 default "2" if NR_CPUS_DEFAULT_2
2262 default "4" if NR_CPUS_DEFAULT_4
2263 default "8" if NR_CPUS_DEFAULT_8
2264 default "16" if NR_CPUS_DEFAULT_16
2265 default "32" if NR_CPUS_DEFAULT_32
2266 default "64" if NR_CPUS_DEFAULT_64
2268 This allows you to specify the maximum number of CPUs which this
2269 kernel will support. The maximum supported value is 32 for 32-bit
2270 kernel and 64 for 64-bit kernels; the minimum value which makes
2271 sense is 1 for Qemu (useful only for kernel debugging purposes)
2272 and 2 for all others.
2274 This is purely to save memory - each supported CPU adds
2275 approximately eight kilobytes to the kernel image. For best
2276 performance should round up your number of processors to the next
2280 # Timer Interrupt Frequency Configuration
2284 prompt "Timer frequency"
2287 Allows the configuration of the timer frequency.
2290 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2293 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2296 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2299 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2302 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2305 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2308 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2312 config SYS_SUPPORTS_48HZ
2315 config SYS_SUPPORTS_100HZ
2318 config SYS_SUPPORTS_128HZ
2321 config SYS_SUPPORTS_250HZ
2324 config SYS_SUPPORTS_256HZ
2327 config SYS_SUPPORTS_1000HZ
2330 config SYS_SUPPORTS_1024HZ
2333 config SYS_SUPPORTS_ARBIT_HZ
2335 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2336 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2337 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2338 !SYS_SUPPORTS_1024HZ
2343 default 100 if HZ_100
2344 default 128 if HZ_128
2345 default 250 if HZ_250
2346 default 256 if HZ_256
2347 default 1000 if HZ_1000
2348 default 1024 if HZ_1024
2350 source "kernel/Kconfig.preempt"
2353 bool "Kexec system call (EXPERIMENTAL)"
2354 depends on EXPERIMENTAL
2356 kexec is a system call that implements the ability to shutdown your
2357 current kernel, and to start another kernel. It is like a reboot
2358 but it is independent of the system firmware. And like a reboot
2359 you can start any kernel with it, not just Linux.
2361 The name comes from the similarity to the exec system call.
2363 It is an ongoing process to be certain the hardware in a machine
2364 is properly shutdown, so do not be surprised if this code does not
2365 initially work for you. It may help to enable device hotplugging
2366 support. As of this writing the exact hardware interface is
2367 strongly in flux, so no good recommendation can be made.
2370 bool "Enable seccomp to safely compute untrusted bytecode"
2374 This kernel feature is useful for number crunching applications
2375 that may need to compute untrusted bytecode during their
2376 execution. By using pipes or other transports made available to
2377 the process as file descriptors supporting the read/write
2378 syscalls, it's possible to isolate those applications in
2379 their own address space using seccomp. Once seccomp is
2380 enabled via /proc/<pid>/seccomp, it cannot be disabled
2381 and the task is only allowed to execute a few safe syscalls
2382 defined by each seccomp mode.
2384 If unsure, say Y. Only embedded should say N here.
2389 select OF_EARLY_FLATTREE
2394 config LOCKDEP_SUPPORT
2398 config STACKTRACE_SUPPORT
2402 source "init/Kconfig"
2404 source "kernel/Kconfig.freezer"
2406 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2414 bool "Support for PCI controller"
2415 depends on HW_HAS_PCI
2417 select GENERIC_PCI_IOMAP
2418 select NO_GENERIC_PCI_IOPORT_MAP
2420 Find out whether you have a PCI motherboard. PCI is the name of a
2421 bus system, i.e. the way the CPU talks to the other stuff inside
2422 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2428 source "drivers/pci/Kconfig"
2430 source "drivers/pci/pcie/Kconfig"
2433 # ISA support is now enabled via select. Too many systems still have the one
2434 # or other ISA chip on the board that users don't know about so don't expect
2435 # users to choose the right thing ...
2442 depends on HW_HAS_EISA
2444 select GENERIC_ISA_DMA
2446 The Extended Industry Standard Architecture (EISA) bus was
2447 developed as an open alternative to the IBM MicroChannel bus.
2449 The EISA bus provided some of the features of the IBM MicroChannel
2450 bus while maintaining backward compatibility with cards made for
2451 the older ISA bus. The EISA bus saw limited use between 1988 and
2452 1995 when it was made obsolete by the PCI bus.
2454 Say Y here if you are building a kernel for an EISA-based machine.
2458 source "drivers/eisa/Kconfig"
2461 bool "TURBOchannel support"
2462 depends on MACH_DECSTATION
2464 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2465 processors. TURBOchannel programming specifications are available
2467 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2469 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2470 Linux driver support status is documented at:
2471 <http://www.linux-mips.org/wiki/DECstation>
2481 select MIPS_EXTERNAL_TIMER
2486 source "drivers/pcmcia/Kconfig"
2488 source "drivers/pci/hotplug/Kconfig"
2491 bool "RapidIO support"
2495 If you say Y here, the kernel will include drivers and
2496 infrastructure code to support RapidIO interconnect devices.
2498 source "drivers/rapidio/Kconfig"
2502 menu "Executable file formats"
2504 source "fs/Kconfig.binfmt"
2509 config MIPS32_COMPAT
2510 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2513 Select this option if you want Linux/MIPS 32-bit binary
2514 compatibility. Since all software available for Linux/MIPS is
2515 currently 32-bit you should say Y here.
2519 depends on MIPS32_COMPAT
2520 select ARCH_WANT_OLD_COMPAT_IPC
2523 config SYSVIPC_COMPAT
2525 depends on COMPAT && SYSVIPC
2529 bool "Kernel support for o32 binaries"
2530 depends on MIPS32_COMPAT
2532 Select this option if you want to run o32 binaries. These are pure
2533 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2534 existing binaries are in this format.
2539 bool "Kernel support for n32 binaries"
2540 depends on MIPS32_COMPAT
2542 Select this option if you want to run n32 binaries. These are
2543 64-bit binaries using 32-bit quantities for addressing and certain
2544 data that would normally be 64-bit. They are used in special
2551 default y if MIPS32_O32 || MIPS32_N32
2555 menu "Power management options"
2557 config ARCH_HIBERNATION_POSSIBLE
2559 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2561 config ARCH_SUSPEND_POSSIBLE
2563 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2565 source "kernel/power/Kconfig"
2569 source "arch/mips/kernel/cpufreq/Kconfig"
2571 source "net/Kconfig"
2573 source "drivers/Kconfig"
2577 source "arch/mips/Kconfig.debug"
2579 source "security/Kconfig"
2581 source "crypto/Kconfig"
2583 source "lib/Kconfig"