4 select HAVE_GENERIC_DMA_COHERENT
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select MODULES_USE_ELF_REL if MODULES
42 select MODULES_USE_ELF_RELA if MODULES && 64BIT
43 select CLONE_BACKWARDS
45 menu "Machine selection"
55 bool "Alchemy processor based machines"
56 select 64BIT_PHYS_ADDR
60 select SYS_HAS_CPU_MIPS32_R1
61 select SYS_SUPPORTS_32BIT_KERNEL
62 select SYS_SUPPORTS_APM_EMULATION
64 select ARCH_WANT_OPTIONAL_GPIOLIB
65 select SYS_SUPPORTS_ZBOOT
66 select USB_ARCH_HAS_OHCI
67 select USB_ARCH_HAS_EHCI
70 bool "Texas Instruments AR7"
72 select DMA_NONCOHERENT
78 select SYS_HAS_CPU_MIPS32_R1
79 select SYS_HAS_EARLY_PRINTK
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_LITTLE_ENDIAN
82 select SYS_SUPPORTS_ZBOOT_UART16550
83 select ARCH_REQUIRE_GPIOLIB
87 Support for the Texas Instruments AR7 System-on-a-Chip
88 family: TNETD7100, 7200 and 7300.
91 bool "Atheros AR71XX/AR724X/AR913X based boards"
92 select ARCH_REQUIRE_GPIOLIB
96 select DMA_NONCOHERENT
100 select SYS_HAS_CPU_MIPS32_R2
101 select SYS_HAS_EARLY_PRINTK
102 select SYS_SUPPORTS_32BIT_KERNEL
103 select SYS_SUPPORTS_BIG_ENDIAN
105 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
108 bool "Broadcom BCM47XX based boards"
109 select ARCH_WANT_OPTIONAL_GPIOLIB
112 select DMA_NONCOHERENT
116 select SYS_SUPPORTS_32BIT_KERNEL
117 select SYS_SUPPORTS_LITTLE_ENDIAN
118 select SYS_HAS_EARLY_PRINTK
120 Support for BCM47XX based boards
123 bool "Broadcom BCM63XX based boards"
126 select DMA_NONCOHERENT
128 select SYS_HAS_CPU_MIPS32_R1
129 select SYS_SUPPORTS_32BIT_KERNEL
130 select SYS_SUPPORTS_BIG_ENDIAN
131 select SYS_HAS_EARLY_PRINTK
133 select ARCH_REQUIRE_GPIOLIB
136 Support for BCM63XX based boards
143 select DMA_NONCOHERENT
149 select PCI_GT64XXX_PCI0
151 select SYS_HAS_CPU_NEVADA
152 select SYS_HAS_EARLY_PRINTK
153 select SYS_SUPPORTS_32BIT_KERNEL
154 select SYS_SUPPORTS_64BIT_KERNEL
155 select SYS_SUPPORTS_LITTLE_ENDIAN
157 config MACH_DECSTATION
164 select CPU_DADDI_WORKAROUNDS if 64BIT
165 select CPU_R4000_WORKAROUNDS if 64BIT
166 select CPU_R4400_WORKAROUNDS if 64BIT
167 select DMA_NONCOHERENT
170 select SYS_HAS_CPU_R3000
171 select SYS_HAS_CPU_R4X00
172 select SYS_SUPPORTS_32BIT_KERNEL
173 select SYS_SUPPORTS_64BIT_KERNEL
174 select SYS_SUPPORTS_LITTLE_ENDIAN
175 select SYS_SUPPORTS_128HZ
176 select SYS_SUPPORTS_256HZ
177 select SYS_SUPPORTS_1024HZ
179 This enables support for DEC's MIPS based workstations. For details
180 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
181 DECstation porting pages on <http://decstation.unix-ag.org/>.
183 If you have one of the following DECstation Models you definitely
184 want to choose R4xx0 for the CPU Type:
191 otherwise choose R3000.
194 bool "Jazz family of machines"
197 select ARCH_MAY_HAVE_PC_FDC
200 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
201 select GENERIC_ISA_DMA
202 select HAVE_PCSPKR_PLATFORM
207 select SYS_HAS_CPU_R4X00
208 select SYS_SUPPORTS_32BIT_KERNEL
209 select SYS_SUPPORTS_64BIT_KERNEL
210 select SYS_SUPPORTS_100HZ
212 This a family of machines based on the MIPS R4030 chipset which was
213 used by several vendors to build RISC/os and Windows NT workstations.
214 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
215 Olivetti M700-10 workstations.
218 bool "Ingenic JZ4740 based machines"
219 select SYS_HAS_CPU_MIPS32_R1
220 select SYS_SUPPORTS_32BIT_KERNEL
221 select SYS_SUPPORTS_LITTLE_ENDIAN
222 select SYS_SUPPORTS_ZBOOT_UART16550
223 select DMA_NONCOHERENT
226 select ARCH_REQUIRE_GPIOLIB
227 select SYS_HAS_EARLY_PRINTK
230 select GENERIC_IRQ_CHIP
233 bool "Lantiq based platforms"
234 select DMA_NONCOHERENT
238 select SYS_HAS_CPU_MIPS32_R1
239 select SYS_HAS_CPU_MIPS32_R2
240 select SYS_SUPPORTS_BIG_ENDIAN
241 select SYS_SUPPORTS_32BIT_KERNEL
242 select SYS_SUPPORTS_MULTITHREADING
243 select SYS_HAS_EARLY_PRINTK
244 select ARCH_REQUIRE_GPIOLIB
247 select HAVE_MACH_CLKDEV
251 select PINCTRL_LANTIQ
254 bool "LASAT Networks platforms"
257 select DMA_NONCOHERENT
258 select SYS_HAS_EARLY_PRINTK
261 select PCI_GT64XXX_PCI0
263 select R5000_CPU_SCACHE
264 select SYS_HAS_CPU_R5000
265 select SYS_SUPPORTS_32BIT_KERNEL
266 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
267 select SYS_SUPPORTS_LITTLE_ENDIAN
270 bool "Loongson family of machines"
271 select SYS_SUPPORTS_ZBOOT
273 This enables the support of Loongson family of machines.
275 Loongson is a family of general-purpose MIPS-compatible CPUs.
276 developed at Institute of Computing Technology (ICT),
277 Chinese Academy of Sciences (CAS) in the People's Republic
278 of China. The chief architect is Professor Weiwu Hu.
280 config MACH_LOONGSON1
281 bool "Loongson 1 family of machines"
282 select SYS_SUPPORTS_ZBOOT
284 This enables support for the Loongson 1 based machines.
286 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
287 the ICT (Institute of Computing Technology) and the Chinese Academy
291 bool "MIPS Malta board"
292 select ARCH_MAY_HAVE_PC_FDC
297 select DMA_NONCOHERENT
298 select GENERIC_ISA_DMA
299 select HAVE_PCSPKR_PLATFORM
305 select MIPS_BOARDS_GEN
307 select MIPS_CPU_SCACHE
308 select PCI_GT64XXX_PCI0
311 select SYS_HAS_CPU_MIPS32_R1
312 select SYS_HAS_CPU_MIPS32_R2
313 select SYS_HAS_CPU_MIPS64_R1
314 select SYS_HAS_CPU_MIPS64_R2
315 select SYS_HAS_CPU_NEVADA
316 select SYS_HAS_CPU_RM7000
317 select SYS_HAS_EARLY_PRINTK
318 select SYS_SUPPORTS_32BIT_KERNEL
319 select SYS_SUPPORTS_64BIT_KERNEL
320 select SYS_SUPPORTS_BIG_ENDIAN
321 select SYS_SUPPORTS_LITTLE_ENDIAN
322 select SYS_SUPPORTS_MIPS_CMP
323 select SYS_SUPPORTS_MULTITHREADING
324 select SYS_SUPPORTS_SMARTMIPS
325 select SYS_SUPPORTS_ZBOOT
327 This enables support for the MIPS Technologies Malta evaluation
331 bool "MIPS SEAD3 board"
336 select CPU_MIPSR2_IRQ_VI
337 select CPU_MIPSR2_IRQ_EI
338 select DMA_NONCOHERENT
341 select MIPS_BOARDS_GEN
342 select MIPS_CPU_SCACHE
344 select SYS_HAS_CPU_MIPS32_R1
345 select SYS_HAS_CPU_MIPS32_R2
346 select SYS_HAS_CPU_MIPS64_R1
347 select SYS_HAS_EARLY_PRINTK
348 select SYS_SUPPORTS_32BIT_KERNEL
349 select SYS_SUPPORTS_64BIT_KERNEL
350 select SYS_SUPPORTS_BIG_ENDIAN
351 select SYS_SUPPORTS_LITTLE_ENDIAN
352 select SYS_SUPPORTS_SMARTMIPS
353 select USB_ARCH_HAS_EHCI
354 select USB_EHCI_BIG_ENDIAN_DESC
355 select USB_EHCI_BIG_ENDIAN_MMIO
357 This enables support for the MIPS Technologies SEAD3 evaluation
361 bool "NEC EMMA2RH Mark-eins board"
365 This enables support for the NEC Electronics Mark-eins boards.
368 bool "NEC VR4100 series based machines"
371 select SYS_HAS_CPU_VR41XX
372 select ARCH_REQUIRE_GPIOLIB
375 bool "NXP STB220 board"
378 Support for NXP Semiconductors STB220 Development Board.
385 Support for NXP Semiconductors STB225 Development Board.
388 bool "NXP PNX8550 based JBS board"
390 select SYS_SUPPORTS_LITTLE_ENDIAN
392 config PNX8550_STB810
393 bool "NXP PNX8550 based STB810 board"
395 select SYS_SUPPORTS_LITTLE_ENDIAN
398 bool "PMC-Sierra MSP chipsets"
401 select DMA_NONCOHERENT
403 select NO_EXCEPT_FILL
405 select SYS_HAS_CPU_MIPS32_R1
406 select SYS_HAS_CPU_MIPS32_R2
407 select SYS_SUPPORTS_32BIT_KERNEL
408 select SYS_SUPPORTS_BIG_ENDIAN
411 select SERIAL_8250_CONSOLE
413 This adds support for the PMC-Sierra family of Multi-Service
414 Processor System-On-A-Chips. These parts include a number
415 of integrated peripherals, interfaces and DSPs in addition to
416 a variety of MIPS cores.
422 select CPU_MIPSR2_IRQ_VI
423 select CPU_MIPSR2_IRQ_EI
425 select DMA_NONCOHERENT
427 select SYS_HAS_EARLY_PRINTK
428 select SYS_HAS_CPU_MIPS32_R2
429 select SYS_SUPPORTS_32BIT_KERNEL
430 select SYS_SUPPORTS_BIG_ENDIAN
431 select SYS_SUPPORTS_HIGHMEM
432 select USB_OHCI_LITTLE_ENDIAN
434 This enables support for the Cisco PowerTV Platform.
437 bool "SGI IP22 (Indy/Indigo2)"
443 select DEFAULT_SGI_PARTITION
444 select DMA_NONCOHERENT
448 select IP22_CPU_SCACHE
450 select GENERIC_ISA_DMA_SUPPORT_BROKEN
452 select SGI_HAS_INDYDOG
458 select SYS_HAS_CPU_R4X00
459 select SYS_HAS_CPU_R5000
461 # Disable EARLY_PRINTK for now since it leads to overwritten prom
462 # memory during early boot on some machines.
464 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
465 # for a more details discussion
467 # select SYS_HAS_EARLY_PRINTK
468 select SYS_SUPPORTS_32BIT_KERNEL
469 select SYS_SUPPORTS_64BIT_KERNEL
470 select SYS_SUPPORTS_BIG_ENDIAN
472 This are the SGI Indy, Challenge S and Indigo2, as well as certain
473 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
474 that runs on these, say Y here.
477 bool "SGI IP27 (Origin200/2000)"
481 select DEFAULT_SGI_PARTITION
483 select SYS_HAS_EARLY_PRINTK
485 select NR_CPUS_DEFAULT_64
486 select SYS_HAS_CPU_R10000
487 select SYS_SUPPORTS_64BIT_KERNEL
488 select SYS_SUPPORTS_BIG_ENDIAN
489 select SYS_SUPPORTS_NUMA
490 select SYS_SUPPORTS_SMP
492 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
493 workstations. To compile a Linux kernel that runs on these, say Y
497 bool "SGI IP28 (Indigo2 R10k)"
503 select DEFAULT_SGI_PARTITION
504 select DMA_NONCOHERENT
505 select GENERIC_ISA_DMA_SUPPORT_BROKEN
511 select SGI_HAS_INDYDOG
517 select SYS_HAS_CPU_R10000
519 # Disable EARLY_PRINTK for now since it leads to overwritten prom
520 # memory during early boot on some machines.
522 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
523 # for a more details discussion
525 # select SYS_HAS_EARLY_PRINTK
526 select SYS_SUPPORTS_64BIT_KERNEL
527 select SYS_SUPPORTS_BIG_ENDIAN
529 This is the SGI Indigo2 with R10000 processor. To compile a Linux
530 kernel that runs on these, say Y here.
539 select DMA_NONCOHERENT
542 select R5000_CPU_SCACHE
543 select RM7000_CPU_SCACHE
544 select SYS_HAS_CPU_R5000
545 select SYS_HAS_CPU_R10000 if BROKEN
546 select SYS_HAS_CPU_RM7000
547 select SYS_HAS_CPU_NEVADA
548 select SYS_SUPPORTS_64BIT_KERNEL
549 select SYS_SUPPORTS_BIG_ENDIAN
551 If you want this kernel to run on SGI O2 workstation, say Y here.
554 bool "Sibyte BCM91120C-CRhine"
557 select SIBYTE_BCM1120
559 select SYS_HAS_CPU_SB1
560 select SYS_SUPPORTS_BIG_ENDIAN
561 select SYS_SUPPORTS_LITTLE_ENDIAN
564 bool "Sibyte BCM91120x-Carmel"
567 select SIBYTE_BCM1120
569 select SYS_HAS_CPU_SB1
570 select SYS_SUPPORTS_BIG_ENDIAN
571 select SYS_SUPPORTS_LITTLE_ENDIAN
574 bool "Sibyte BCM91125C-CRhone"
577 select SIBYTE_BCM1125
579 select SYS_HAS_CPU_SB1
580 select SYS_SUPPORTS_BIG_ENDIAN
581 select SYS_SUPPORTS_HIGHMEM
582 select SYS_SUPPORTS_LITTLE_ENDIAN
585 bool "Sibyte BCM91125E-Rhone"
588 select SIBYTE_BCM1125H
590 select SYS_HAS_CPU_SB1
591 select SYS_SUPPORTS_BIG_ENDIAN
592 select SYS_SUPPORTS_LITTLE_ENDIAN
595 bool "Sibyte BCM91250A-SWARM"
598 select HAVE_PATA_PLATFORM
599 select NR_CPUS_DEFAULT_2
602 select SYS_HAS_CPU_SB1
603 select SYS_SUPPORTS_BIG_ENDIAN
604 select SYS_SUPPORTS_HIGHMEM
605 select SYS_SUPPORTS_LITTLE_ENDIAN
606 select ZONE_DMA32 if 64BIT
608 config SIBYTE_LITTLESUR
609 bool "Sibyte BCM91250C2-LittleSur"
612 select HAVE_PATA_PLATFORM
613 select NR_CPUS_DEFAULT_2
616 select SYS_HAS_CPU_SB1
617 select SYS_SUPPORTS_BIG_ENDIAN
618 select SYS_SUPPORTS_HIGHMEM
619 select SYS_SUPPORTS_LITTLE_ENDIAN
621 config SIBYTE_SENTOSA
622 bool "Sibyte BCM91250E-Sentosa"
625 select NR_CPUS_DEFAULT_2
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_LITTLE_ENDIAN
633 bool "Sibyte BCM91480B-BigSur"
636 select NR_CPUS_DEFAULT_4
637 select SIBYTE_BCM1x80
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_HIGHMEM
642 select SYS_SUPPORTS_LITTLE_ENDIAN
643 select ZONE_DMA32 if 64BIT
646 bool "SNI RM200/300/400"
647 select FW_ARC if CPU_LITTLE_ENDIAN
648 select FW_ARC32 if CPU_LITTLE_ENDIAN
649 select SNIPROM if CPU_BIG_ENDIAN
650 select ARCH_MAY_HAVE_PC_FDC
654 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
655 select DMA_NONCOHERENT
656 select GENERIC_ISA_DMA
657 select HAVE_PCSPKR_PLATFORM
664 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
665 select SYS_HAS_CPU_R4X00
666 select SYS_HAS_CPU_R5000
667 select SYS_HAS_CPU_R10000
668 select R5000_CPU_SCACHE
669 select SYS_HAS_EARLY_PRINTK
670 select SYS_SUPPORTS_32BIT_KERNEL
671 select SYS_SUPPORTS_64BIT_KERNEL
672 select SYS_SUPPORTS_BIG_ENDIAN
673 select SYS_SUPPORTS_HIGHMEM
674 select SYS_SUPPORTS_LITTLE_ENDIAN
676 The SNI RM200/300/400 are MIPS-based machines manufactured by
677 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
678 Technology and now in turn merged with Fujitsu. Say Y here to
679 support this machine type.
682 bool "Toshiba TX39 series based machines"
685 bool "Toshiba TX49 series based machines"
687 config MIKROTIK_RB532
688 bool "Mikrotik RB532 boards"
691 select DMA_NONCOHERENT
694 select SYS_HAS_CPU_MIPS32_R1
695 select SYS_SUPPORTS_32BIT_KERNEL
696 select SYS_SUPPORTS_LITTLE_ENDIAN
699 select ARCH_REQUIRE_GPIOLIB
701 Support the Mikrotik(tm) RouterBoard 532 series,
702 based on the IDT RC32434 SoC.
705 bool "Wind River PPMC board"
710 select DMA_NONCOHERENT
712 select PCI_GT64XXX_PCI0
714 select SYS_HAS_CPU_MIPS32_R1
715 select SYS_HAS_CPU_MIPS32_R2
716 select SYS_HAS_CPU_MIPS64_R1
717 select SYS_HAS_CPU_NEVADA
718 select SYS_HAS_CPU_RM7000
719 select SYS_SUPPORTS_32BIT_KERNEL
720 select SYS_SUPPORTS_64BIT_KERNEL
721 select SYS_SUPPORTS_BIG_ENDIAN
722 select SYS_SUPPORTS_LITTLE_ENDIAN
724 This enables support for the Wind River MIPS32 4KC PPMC evaluation
725 board, which is based on GT64120 bridge chip.
727 config CAVIUM_OCTEON_SIMULATOR
728 bool "Cavium Networks Octeon Simulator"
730 select 64BIT_PHYS_ADDR
732 select SYS_SUPPORTS_64BIT_KERNEL
733 select SYS_SUPPORTS_BIG_ENDIAN
734 select SYS_SUPPORTS_HOTPLUG_CPU
735 select SYS_HAS_CPU_CAVIUM_OCTEON
738 The Octeon simulator is software performance model of the Cavium
739 Octeon Processor. It supports simulating Octeon processors on x86
742 config CAVIUM_OCTEON_REFERENCE_BOARD
743 bool "Cavium Networks Octeon reference board"
745 select 64BIT_PHYS_ADDR
747 select SYS_SUPPORTS_64BIT_KERNEL
748 select SYS_SUPPORTS_BIG_ENDIAN
750 select SYS_SUPPORTS_HOTPLUG_CPU
751 select SYS_HAS_EARLY_PRINTK
752 select SYS_HAS_CPU_CAVIUM_OCTEON
755 select ARCH_SUPPORTS_MSI
757 select USB_ARCH_HAS_OHCI
758 select USB_ARCH_HAS_EHCI
761 This option supports all of the Octeon reference boards from Cavium
762 Networks. It builds a kernel that dynamically determines the Octeon
763 CPU type and supports all known board reference implementations.
764 Some of the supported boards are:
771 Say Y here for most Octeon reference boards.
774 bool "Netlogic XLR/XLS based systems"
777 select SYS_HAS_CPU_XLR
778 select SYS_SUPPORTS_SMP
781 select SYS_SUPPORTS_32BIT_KERNEL
782 select SYS_SUPPORTS_64BIT_KERNEL
783 select 64BIT_PHYS_ADDR
784 select SYS_SUPPORTS_BIG_ENDIAN
785 select SYS_SUPPORTS_HIGHMEM
787 select NR_CPUS_DEFAULT_32
791 select ARCH_SUPPORTS_MSI
792 select ZONE_DMA32 if 64BIT
794 select SYS_HAS_EARLY_PRINTK
795 select USB_ARCH_HAS_OHCI if USB_SUPPORT
796 select USB_ARCH_HAS_EHCI if USB_SUPPORT
798 Support for systems based on Netlogic XLR and XLS processors.
799 Say Y here if you have a XLR or XLS based board.
802 bool "Netlogic XLP based systems"
805 select SYS_HAS_CPU_XLP
806 select SYS_SUPPORTS_SMP
808 select SYS_SUPPORTS_32BIT_KERNEL
809 select SYS_SUPPORTS_64BIT_KERNEL
810 select 64BIT_PHYS_ADDR
811 select SYS_SUPPORTS_BIG_ENDIAN
812 select SYS_SUPPORTS_LITTLE_ENDIAN
813 select SYS_SUPPORTS_HIGHMEM
815 select NR_CPUS_DEFAULT_32
819 select ZONE_DMA32 if 64BIT
821 select SYS_HAS_EARLY_PRINTK
824 This board is based on Netlogic XLP Processor.
825 Say Y here if you have a XLP based board.
829 source "arch/mips/alchemy/Kconfig"
830 source "arch/mips/ath79/Kconfig"
831 source "arch/mips/bcm47xx/Kconfig"
832 source "arch/mips/bcm63xx/Kconfig"
833 source "arch/mips/jazz/Kconfig"
834 source "arch/mips/jz4740/Kconfig"
835 source "arch/mips/lantiq/Kconfig"
836 source "arch/mips/lasat/Kconfig"
837 source "arch/mips/pmc-sierra/Kconfig"
838 source "arch/mips/powertv/Kconfig"
839 source "arch/mips/sgi-ip27/Kconfig"
840 source "arch/mips/sibyte/Kconfig"
841 source "arch/mips/txx9/Kconfig"
842 source "arch/mips/vr41xx/Kconfig"
843 source "arch/mips/cavium-octeon/Kconfig"
844 source "arch/mips/loongson/Kconfig"
845 source "arch/mips/loongson1/Kconfig"
846 source "arch/mips/netlogic/Kconfig"
850 config RWSEM_GENERIC_SPINLOCK
854 config RWSEM_XCHGADD_ALGORITHM
857 config ARCH_HAS_ILOG2_U32
861 config ARCH_HAS_ILOG2_U64
865 config GENERIC_HWEIGHT
869 config GENERIC_CALIBRATE_DELAY
873 config SCHED_OMIT_FRAME_POINTER
878 # Select some configuration options automatically based on user selections.
883 config ARCH_MAY_HAVE_PC_FDC
924 select ARCH_REQUIRE_GPIOLIB
930 config ARCH_DMA_ADDR_T_64BIT
931 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
936 config DMA_NONCOHERENT
938 select NEED_DMA_MAP_STATE
940 config NEED_DMA_MAP_STATE
943 config SYS_HAS_EARLY_PRINTK
947 bool "Support for hot-pluggable CPUs"
948 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
950 Say Y here to allow turning CPUs off and on. CPUs can be
951 controlled through /sys/devices/system/cpu.
952 (Note: power management support will enable this option
953 automatically on SMP systems. )
954 Say N if you want to disable CPU hotplug.
956 config SYS_SUPPORTS_HOTPLUG_CPU
971 config MIPS_DISABLE_OBSOLETE_IDE
983 config GENERIC_ISA_DMA
985 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
988 config GENERIC_ISA_DMA_SUPPORT_BROKEN
990 select GENERIC_ISA_DMA
1002 # Endianness selection. Sufficiently obscure so many users don't know what to
1003 # answer,so we try hard to limit the available choices. Also the use of a
1004 # choice statement should be more obvious to the user.
1007 prompt "Endianness selection"
1009 Some MIPS machines can be configured for either little or big endian
1010 byte order. These modes require different kernels and a different
1011 Linux distribution. In general there is one preferred byteorder for a
1012 particular system but some systems are just as commonly used in the
1013 one or the other endianness.
1015 config CPU_BIG_ENDIAN
1017 depends on SYS_SUPPORTS_BIG_ENDIAN
1019 config CPU_LITTLE_ENDIAN
1020 bool "Little endian"
1021 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1029 config SYS_SUPPORTS_APM_EMULATION
1032 config SYS_SUPPORTS_BIG_ENDIAN
1035 config SYS_SUPPORTS_LITTLE_ENDIAN
1038 config SYS_SUPPORTS_HUGETLBFS
1040 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1043 config MIPS_HUGE_TLB_SUPPORT
1044 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1067 config MIPS_BOARDS_GEN
1070 config PCI_GT64XXX_PCI0
1073 config NO_EXCEPT_FILL
1080 select DMA_NONCOHERENT
1082 select SWAP_IO_SPACE
1083 select SYS_HAS_CPU_R5500
1084 select SYS_SUPPORTS_32BIT_KERNEL
1085 select SYS_SUPPORTS_64BIT_KERNEL
1086 select SYS_SUPPORTS_BIG_ENDIAN
1093 select DMA_NONCOHERENT
1094 select SYS_HAS_CPU_MIPS32_R2
1095 select SYS_SUPPORTS_32BIT_KERNEL
1096 select SYS_SUPPORTS_LITTLE_ENDIAN
1097 select SYS_SUPPORTS_BIG_ENDIAN
1099 select CPU_MIPSR2_IRQ_VI
1111 select DMA_NONCOHERENT
1113 select SYS_HAS_CPU_MIPS32_R1
1114 select SYS_HAS_EARLY_PRINTK
1115 select SYS_SUPPORTS_32BIT_KERNEL
1118 config SWAP_IO_SPACE
1121 config SGI_HAS_INDYDOG
1133 config SGI_HAS_ZILOG
1136 config SGI_HAS_I8042
1139 config DEFAULT_SGI_PARTITION
1151 config MIPS_L1_CACHE_SHIFT
1153 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1154 default "6" if MIPS_CPU_SCACHE
1155 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1158 config HAVE_STD_PC_SERIAL_PORT
1162 bool "ARC console support"
1163 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1167 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1172 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1181 menu "CPU selection"
1187 config CPU_LOONGSON2E
1189 depends on SYS_HAS_CPU_LOONGSON2E
1190 select CPU_LOONGSON2
1192 The Loongson 2E processor implements the MIPS III instruction set
1193 with many extensions.
1195 It has an internal FPGA northbridge, which is compatible to
1198 config CPU_LOONGSON2F
1200 depends on SYS_HAS_CPU_LOONGSON2F
1201 select CPU_LOONGSON2
1203 select ARCH_REQUIRE_GPIOLIB
1205 The Loongson 2F processor implements the MIPS III instruction set
1206 with many extensions.
1208 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1209 have a similar programming interface with FPGA northbridge used in
1212 config CPU_LOONGSON1B
1214 depends on SYS_HAS_CPU_LOONGSON1B
1215 select CPU_LOONGSON1
1217 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1218 release 2 instruction set.
1220 config CPU_MIPS32_R1
1221 bool "MIPS32 Release 1"
1222 depends on SYS_HAS_CPU_MIPS32_R1
1223 select CPU_HAS_PREFETCH
1224 select CPU_SUPPORTS_32BIT_KERNEL
1225 select CPU_SUPPORTS_HIGHMEM
1227 Choose this option to build a kernel for release 1 or later of the
1228 MIPS32 architecture. Most modern embedded systems with a 32-bit
1229 MIPS processor are based on a MIPS32 processor. If you know the
1230 specific type of processor in your system, choose those that one
1231 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1232 Release 2 of the MIPS32 architecture is available since several
1233 years so chances are you even have a MIPS32 Release 2 processor
1234 in which case you should choose CPU_MIPS32_R2 instead for better
1237 config CPU_MIPS32_R2
1238 bool "MIPS32 Release 2"
1239 depends on SYS_HAS_CPU_MIPS32_R2
1240 select CPU_HAS_PREFETCH
1241 select CPU_SUPPORTS_32BIT_KERNEL
1242 select CPU_SUPPORTS_HIGHMEM
1244 Choose this option to build a kernel for release 2 or later of the
1245 MIPS32 architecture. Most modern embedded systems with a 32-bit
1246 MIPS processor are based on a MIPS32 processor. If you know the
1247 specific type of processor in your system, choose those that one
1248 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1250 config CPU_MIPS64_R1
1251 bool "MIPS64 Release 1"
1252 depends on SYS_HAS_CPU_MIPS64_R1
1253 select CPU_HAS_PREFETCH
1254 select CPU_SUPPORTS_32BIT_KERNEL
1255 select CPU_SUPPORTS_64BIT_KERNEL
1256 select CPU_SUPPORTS_HIGHMEM
1257 select CPU_SUPPORTS_HUGEPAGES
1259 Choose this option to build a kernel for release 1 or later of the
1260 MIPS64 architecture. Many modern embedded systems with a 64-bit
1261 MIPS processor are based on a MIPS64 processor. If you know the
1262 specific type of processor in your system, choose those that one
1263 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1264 Release 2 of the MIPS64 architecture is available since several
1265 years so chances are you even have a MIPS64 Release 2 processor
1266 in which case you should choose CPU_MIPS64_R2 instead for better
1269 config CPU_MIPS64_R2
1270 bool "MIPS64 Release 2"
1271 depends on SYS_HAS_CPU_MIPS64_R2
1272 select CPU_HAS_PREFETCH
1273 select CPU_SUPPORTS_32BIT_KERNEL
1274 select CPU_SUPPORTS_64BIT_KERNEL
1275 select CPU_SUPPORTS_HIGHMEM
1276 select CPU_SUPPORTS_HUGEPAGES
1278 Choose this option to build a kernel for release 2 or later of the
1279 MIPS64 architecture. Many modern embedded systems with a 64-bit
1280 MIPS processor are based on a MIPS64 processor. If you know the
1281 specific type of processor in your system, choose those that one
1282 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1286 depends on SYS_HAS_CPU_R3000
1288 select CPU_SUPPORTS_32BIT_KERNEL
1289 select CPU_SUPPORTS_HIGHMEM
1291 Please make sure to pick the right CPU type. Linux/MIPS is not
1292 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1293 *not* work on R4000 machines and vice versa. However, since most
1294 of the supported machines have an R4000 (or similar) CPU, R4x00
1295 might be a safe bet. If the resulting kernel does not work,
1296 try to recompile with R3000.
1300 depends on SYS_HAS_CPU_TX39XX
1301 select CPU_SUPPORTS_32BIT_KERNEL
1305 depends on SYS_HAS_CPU_VR41XX
1306 select CPU_SUPPORTS_32BIT_KERNEL
1307 select CPU_SUPPORTS_64BIT_KERNEL
1309 The options selects support for the NEC VR4100 series of processors.
1310 Only choose this option if you have one of these processors as a
1311 kernel built with this option will not run on any other type of
1312 processor or vice versa.
1316 depends on SYS_HAS_CPU_R4300
1317 select CPU_SUPPORTS_32BIT_KERNEL
1318 select CPU_SUPPORTS_64BIT_KERNEL
1320 MIPS Technologies R4300-series processors.
1324 depends on SYS_HAS_CPU_R4X00
1325 select CPU_SUPPORTS_32BIT_KERNEL
1326 select CPU_SUPPORTS_64BIT_KERNEL
1327 select CPU_SUPPORTS_HUGEPAGES
1329 MIPS Technologies R4000-series processors other than 4300, including
1330 the R4000, R4400, R4600, and 4700.
1334 depends on SYS_HAS_CPU_TX49XX
1335 select CPU_HAS_PREFETCH
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
1338 select CPU_SUPPORTS_HUGEPAGES
1342 depends on SYS_HAS_CPU_R5000
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1345 select CPU_SUPPORTS_HUGEPAGES
1347 MIPS Technologies R5000-series processors other than the Nevada.
1351 depends on SYS_HAS_CPU_R5432
1352 select CPU_SUPPORTS_32BIT_KERNEL
1353 select CPU_SUPPORTS_64BIT_KERNEL
1354 select CPU_SUPPORTS_HUGEPAGES
1358 depends on SYS_HAS_CPU_R5500
1359 select CPU_SUPPORTS_32BIT_KERNEL
1360 select CPU_SUPPORTS_64BIT_KERNEL
1361 select CPU_SUPPORTS_HUGEPAGES
1363 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1368 depends on SYS_HAS_CPU_R6000
1369 select CPU_SUPPORTS_32BIT_KERNEL
1371 MIPS Technologies R6000 and R6000A series processors. Note these
1372 processors are extremely rare and the support for them is incomplete.
1376 depends on SYS_HAS_CPU_NEVADA
1377 select CPU_SUPPORTS_32BIT_KERNEL
1378 select CPU_SUPPORTS_64BIT_KERNEL
1379 select CPU_SUPPORTS_HUGEPAGES
1381 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1385 depends on SYS_HAS_CPU_R8000
1386 select CPU_HAS_PREFETCH
1387 select CPU_SUPPORTS_64BIT_KERNEL
1389 MIPS Technologies R8000 processors. Note these processors are
1390 uncommon and the support for them is incomplete.
1394 depends on SYS_HAS_CPU_R10000
1395 select CPU_HAS_PREFETCH
1396 select CPU_SUPPORTS_32BIT_KERNEL
1397 select CPU_SUPPORTS_64BIT_KERNEL
1398 select CPU_SUPPORTS_HIGHMEM
1399 select CPU_SUPPORTS_HUGEPAGES
1401 MIPS Technologies R10000-series processors.
1405 depends on SYS_HAS_CPU_RM7000
1406 select CPU_HAS_PREFETCH
1407 select CPU_SUPPORTS_32BIT_KERNEL
1408 select CPU_SUPPORTS_64BIT_KERNEL
1409 select CPU_SUPPORTS_HIGHMEM
1410 select CPU_SUPPORTS_HUGEPAGES
1414 depends on SYS_HAS_CPU_SB1
1415 select CPU_SUPPORTS_32BIT_KERNEL
1416 select CPU_SUPPORTS_64BIT_KERNEL
1417 select CPU_SUPPORTS_HIGHMEM
1418 select CPU_SUPPORTS_HUGEPAGES
1419 select WEAK_ORDERING
1421 config CPU_CAVIUM_OCTEON
1422 bool "Cavium Octeon processor"
1423 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1424 select ARCH_SPARSEMEM_ENABLE
1425 select CPU_HAS_PREFETCH
1426 select CPU_SUPPORTS_64BIT_KERNEL
1427 select SYS_SUPPORTS_SMP
1428 select NR_CPUS_DEFAULT_16
1429 select WEAK_ORDERING
1430 select CPU_SUPPORTS_HIGHMEM
1431 select CPU_SUPPORTS_HUGEPAGES
1435 The Cavium Octeon processor is a highly integrated chip containing
1436 many ethernet hardware widgets for networking tasks. The processor
1437 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1438 Full details can be found at http://www.caviumnetworks.com.
1440 config CPU_BMIPS3300
1442 depends on SYS_HAS_CPU_BMIPS3300
1445 Broadcom BMIPS3300 processors.
1447 config CPU_BMIPS4350
1449 depends on SYS_HAS_CPU_BMIPS4350
1451 select SYS_SUPPORTS_SMP
1452 select SYS_SUPPORTS_HOTPLUG_CPU
1454 Broadcom BMIPS4350 ("VIPER") processors.
1456 config CPU_BMIPS4380
1458 depends on SYS_HAS_CPU_BMIPS4380
1460 select SYS_SUPPORTS_SMP
1461 select SYS_SUPPORTS_HOTPLUG_CPU
1463 Broadcom BMIPS4380 processors.
1465 config CPU_BMIPS5000
1467 depends on SYS_HAS_CPU_BMIPS5000
1469 select CPU_SUPPORTS_HIGHMEM
1470 select MIPS_CPU_SCACHE
1471 select SYS_SUPPORTS_SMP
1472 select SYS_SUPPORTS_HOTPLUG_CPU
1474 Broadcom BMIPS5000 processors.
1477 bool "Netlogic XLR SoC"
1478 depends on SYS_HAS_CPU_XLR
1479 select CPU_SUPPORTS_32BIT_KERNEL
1480 select CPU_SUPPORTS_64BIT_KERNEL
1481 select CPU_SUPPORTS_HIGHMEM
1482 select CPU_SUPPORTS_HUGEPAGES
1483 select WEAK_ORDERING
1484 select WEAK_REORDERING_BEYOND_LLSC
1486 Netlogic Microsystems XLR/XLS processors.
1489 bool "Netlogic XLP SoC"
1490 depends on SYS_HAS_CPU_XLP
1491 select CPU_SUPPORTS_32BIT_KERNEL
1492 select CPU_SUPPORTS_64BIT_KERNEL
1493 select CPU_SUPPORTS_HIGHMEM
1495 select WEAK_ORDERING
1496 select WEAK_REORDERING_BEYOND_LLSC
1497 select CPU_HAS_PREFETCH
1500 Netlogic Microsystems XLP processors.
1504 config CPU_NOP_WORKAROUNDS
1507 config CPU_JUMP_WORKAROUNDS
1510 config CPU_LOONGSON2F_WORKAROUNDS
1511 bool "Loongson 2F Workarounds"
1513 select CPU_NOP_WORKAROUNDS
1514 select CPU_JUMP_WORKAROUNDS
1516 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1517 require workarounds. Without workarounds the system may hang
1518 unexpectedly. For more information please refer to the gas
1519 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1521 Loongson 2F03 and later have fixed these issues and no workarounds
1522 are needed. The workarounds have no significant side effect on them
1523 but may decrease the performance of the system so this option should
1524 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1527 If unsure, please say Y.
1528 endif # CPU_LOONGSON2F
1530 config SYS_SUPPORTS_ZBOOT
1532 select HAVE_KERNEL_GZIP
1533 select HAVE_KERNEL_BZIP2
1534 select HAVE_KERNEL_LZMA
1535 select HAVE_KERNEL_LZO
1537 config SYS_SUPPORTS_ZBOOT_UART16550
1539 select SYS_SUPPORTS_ZBOOT
1541 config CPU_LOONGSON2
1543 select CPU_SUPPORTS_32BIT_KERNEL
1544 select CPU_SUPPORTS_64BIT_KERNEL
1545 select CPU_SUPPORTS_HIGHMEM
1546 select CPU_SUPPORTS_HUGEPAGES
1548 config CPU_LOONGSON1
1552 select CPU_HAS_PREFETCH
1553 select CPU_SUPPORTS_32BIT_KERNEL
1554 select CPU_SUPPORTS_HIGHMEM
1559 select CPU_SUPPORTS_32BIT_KERNEL
1560 select DMA_NONCOHERENT
1562 select SWAP_IO_SPACE
1563 select WEAK_ORDERING
1565 config SYS_HAS_CPU_LOONGSON2E
1568 config SYS_HAS_CPU_LOONGSON2F
1570 select CPU_SUPPORTS_CPUFREQ
1571 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1572 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1574 config SYS_HAS_CPU_LOONGSON1B
1577 config SYS_HAS_CPU_MIPS32_R1
1580 config SYS_HAS_CPU_MIPS32_R2
1583 config SYS_HAS_CPU_MIPS64_R1
1586 config SYS_HAS_CPU_MIPS64_R2
1589 config SYS_HAS_CPU_R3000
1592 config SYS_HAS_CPU_TX39XX
1595 config SYS_HAS_CPU_VR41XX
1598 config SYS_HAS_CPU_R4300
1601 config SYS_HAS_CPU_R4X00
1604 config SYS_HAS_CPU_TX49XX
1607 config SYS_HAS_CPU_R5000
1610 config SYS_HAS_CPU_R5432
1613 config SYS_HAS_CPU_R5500
1616 config SYS_HAS_CPU_R6000
1619 config SYS_HAS_CPU_NEVADA
1622 config SYS_HAS_CPU_R8000
1625 config SYS_HAS_CPU_R10000
1628 config SYS_HAS_CPU_RM7000
1631 config SYS_HAS_CPU_SB1
1634 config SYS_HAS_CPU_CAVIUM_OCTEON
1637 config SYS_HAS_CPU_BMIPS3300
1640 config SYS_HAS_CPU_BMIPS4350
1643 config SYS_HAS_CPU_BMIPS4380
1646 config SYS_HAS_CPU_BMIPS5000
1649 config SYS_HAS_CPU_XLR
1652 config SYS_HAS_CPU_XLP
1656 # CPU may reorder R->R, R->W, W->R, W->W
1657 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1659 config WEAK_ORDERING
1663 # CPU may reorder reads and writes beyond LL/SC
1664 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1666 config WEAK_REORDERING_BEYOND_LLSC
1671 # These two indicate any level of the MIPS32 and MIPS64 architecture
1675 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1679 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1682 # These two indicate the revision of the architecture, either Release 1 or Release 2
1686 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1690 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1692 config SYS_SUPPORTS_32BIT_KERNEL
1694 config SYS_SUPPORTS_64BIT_KERNEL
1696 config CPU_SUPPORTS_32BIT_KERNEL
1698 config CPU_SUPPORTS_64BIT_KERNEL
1700 config CPU_SUPPORTS_CPUFREQ
1702 config CPU_SUPPORTS_ADDRWINCFG
1704 config CPU_SUPPORTS_HUGEPAGES
1706 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1708 config MIPS_PGD_C0_CONTEXT
1710 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1713 # Set to y for ptrace access to watch registers.
1715 config HARDWARE_WATCHPOINTS
1717 default y if CPU_MIPSR1 || CPU_MIPSR2
1722 prompt "Kernel code model"
1724 You should only select this option if you have a workload that
1725 actually benefits from 64-bit processing or if your machine has
1726 large memory. You will only be presented a single option in this
1727 menu if your system does not support both 32-bit and 64-bit kernels.
1730 bool "32-bit kernel"
1731 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1734 Select this option if you want to build a 32-bit kernel.
1736 bool "64-bit kernel"
1737 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1738 select HAVE_SYSCALL_WRAPPERS
1740 Select this option if you want to build a 64-bit kernel.
1745 prompt "Kernel page size"
1746 default PAGE_SIZE_4KB
1748 config PAGE_SIZE_4KB
1750 depends on !CPU_LOONGSON2
1752 This option select the standard 4kB Linux page size. On some
1753 R3000-family processors this is the only available page size. Using
1754 4kB page size will minimize memory consumption and is therefore
1755 recommended for low memory systems.
1757 config PAGE_SIZE_8KB
1759 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1761 Using 8kB page size will result in higher performance kernel at
1762 the price of higher memory consumption. This option is available
1763 only on R8000 and cnMIPS processors. Note that you will need a
1764 suitable Linux distribution to support this.
1766 config PAGE_SIZE_16KB
1768 depends on !CPU_R3000 && !CPU_TX39XX
1770 Using 16kB page size will result in higher performance kernel at
1771 the price of higher memory consumption. This option is available on
1772 all non-R3000 family processors. Note that you will need a suitable
1773 Linux distribution to support this.
1775 config PAGE_SIZE_32KB
1777 depends on CPU_CAVIUM_OCTEON
1779 Using 32kB page size will result in higher performance kernel at
1780 the price of higher memory consumption. This option is available
1781 only on cnMIPS cores. Note that you will need a suitable Linux
1782 distribution to support this.
1784 config PAGE_SIZE_64KB
1786 depends on !CPU_R3000 && !CPU_TX39XX
1788 Using 64kB page size will result in higher performance kernel at
1789 the price of higher memory consumption. This option is available on
1790 all non-R3000 family processor. Not that at the time of this
1791 writing this option is still high experimental.
1795 config FORCE_MAX_ZONEORDER
1796 int "Maximum zone order"
1797 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1798 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1799 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1800 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1801 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1802 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1806 The kernel memory allocator divides physically contiguous memory
1807 blocks into "zones", where each zone is a power of two number of
1808 pages. This option selects the largest power of two that the kernel
1809 keeps in the memory allocator. If you need to allocate very large
1810 blocks of physically contiguous memory, then you may need to
1811 increase this value.
1813 This config option is actually maximum order plus one. For example,
1814 a value of 11 means that the largest free memory block is 2^10 pages.
1816 The page size is not necessarily 4KB. Keep this in mind
1817 when choosing a value for this option.
1822 config IP22_CPU_SCACHE
1827 # Support for a MIPS32 / MIPS64 style S-caches
1829 config MIPS_CPU_SCACHE
1833 config R5000_CPU_SCACHE
1837 config RM7000_CPU_SCACHE
1841 config SIBYTE_DMA_PAGEOPS
1842 bool "Use DMA to clear/copy pages"
1845 Instead of using the CPU to zero and copy pages, use a Data Mover
1846 channel. These DMA channels are otherwise unused by the standard
1847 SiByte Linux port. Seems to give a small performance benefit.
1849 config CPU_HAS_PREFETCH
1852 config CPU_GENERIC_DUMP_TLB
1854 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1858 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1860 config CPU_R4K_CACHE_TLB
1862 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1865 prompt "MIPS MT options"
1867 config MIPS_MT_DISABLED
1868 bool "Disable multithreading support."
1870 Use this option if your workload can't take advantage of
1871 MIPS hardware multithreading support. On systems that don't have
1872 the option of an MT-enabled processor this option will be the only
1873 option in this menu.
1876 bool "Use 1 TC on each available VPE for SMP"
1877 depends on SYS_SUPPORTS_MULTITHREADING
1878 select CPU_MIPSR2_IRQ_VI
1879 select CPU_MIPSR2_IRQ_EI
1881 select NR_CPUS_DEFAULT_2
1883 select SYS_SUPPORTS_SCHED_SMT if SMP
1884 select SYS_SUPPORTS_SMP
1886 select MIPS_PERF_SHARED_TC_COUNTERS
1888 This is a kernel model which is known a VSMP but lately has been
1889 marketesed into SMVP.
1890 Virtual SMP uses the processor's VPEs to implement virtual
1891 processors. In currently available configuration of the 34K processor
1892 this allows for a dual processor. Both processors will share the same
1893 primary caches; each will obtain the half of the TLB for it's own
1894 exclusive use. For a layman this model can be described as similar to
1895 what Intel calls Hyperthreading.
1897 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1900 bool "SMTC: Use all TCs on all VPEs for SMP"
1901 depends on CPU_MIPS32_R2
1902 #depends on CPU_MIPS64_R2 # once there is hardware ...
1903 depends on SYS_SUPPORTS_MULTITHREADING
1904 select CPU_MIPSR2_IRQ_VI
1905 select CPU_MIPSR2_IRQ_EI
1907 select NR_CPUS_DEFAULT_8
1909 select SYS_SUPPORTS_SMP
1912 This is a kernel model which is known a SMTC or lately has been
1913 marketesed into SMVP.
1914 is presenting the available TC's of the core as processors to Linux.
1915 On currently available 34K processors this means a Linux system will
1916 see up to 5 processors. The implementation of the SMTC kernel differs
1917 significantly from VSMP and cannot efficiently coexist in the same
1918 kernel binary so the choice between VSMP and SMTC is a compile time
1921 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1929 bool "SMT (multithreading) scheduler support"
1930 depends on SYS_SUPPORTS_SCHED_SMT
1933 SMT scheduler support improves the CPU scheduler's decision making
1934 when dealing with MIPS MT enabled cores at a cost of slightly
1935 increased overhead in some places. If unsure say N here.
1937 config SYS_SUPPORTS_SCHED_SMT
1940 config SYS_SUPPORTS_MULTITHREADING
1943 config MIPS_MT_FPAFF
1944 bool "Dynamic FPU affinity for FP-intensive threads"
1946 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1948 config MIPS_VPE_LOADER
1949 bool "VPE loader support."
1950 depends on SYS_SUPPORTS_MULTITHREADING
1951 select CPU_MIPSR2_IRQ_VI
1952 select CPU_MIPSR2_IRQ_EI
1955 Includes a loader for loading an elf relocatable object
1956 onto another VPE and running it.
1958 config MIPS_MT_SMTC_IM_BACKSTOP
1959 bool "Use per-TC register bits as backstop for inhibited IM bits"
1960 depends on MIPS_MT_SMTC
1963 To support multiple TC microthreads acting as "CPUs" within
1964 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1965 during interrupt handling. To support legacy drivers and interrupt
1966 controller management code, SMTC has a "backstop" to track and
1967 if necessary restore the interrupt mask. This has some performance
1968 impact on interrupt service overhead.
1970 config MIPS_MT_SMTC_IRQAFF
1971 bool "Support IRQ affinity API"
1972 depends on MIPS_MT_SMTC
1975 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1976 for SMTC Linux kernel. Requires platform support, of which
1977 an example can be found in the MIPS kernel i8259 and Malta
1978 platform code. Adds some overhead to interrupt dispatch, and
1979 should be used only if you know what you are doing.
1981 config MIPS_VPE_LOADER_TOM
1982 bool "Load VPE program into memory hidden from linux"
1983 depends on MIPS_VPE_LOADER
1986 The loader can use memory that is present but has been hidden from
1987 Linux using the kernel command line option "mem=xxMB". It's up to
1988 you to ensure the amount you put in the option and the space your
1989 program requires is less or equal to the amount physically present.
1991 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1992 config MIPS_VPE_APSP_API
1993 bool "Enable support for AP/SP API (RTLX)"
1994 depends on MIPS_VPE_LOADER
1998 bool "MIPS CMP framework support"
1999 depends on SYS_SUPPORTS_MIPS_CMP
2001 select SYS_SUPPORTS_SMP
2002 select SYS_SUPPORTS_SCHED_SMT if SMP
2003 select WEAK_ORDERING
2006 This is a placeholder option for the GCMP work. It will need to
2007 be handled differently...
2009 config SB1_PASS_1_WORKAROUNDS
2011 depends on CPU_SB1_PASS_1
2014 config SB1_PASS_2_WORKAROUNDS
2016 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2019 config SB1_PASS_2_1_WORKAROUNDS
2021 depends on CPU_SB1 && CPU_SB1_PASS_2
2024 config 64BIT_PHYS_ADDR
2027 config ARCH_PHYS_ADDR_T_64BIT
2028 def_bool 64BIT_PHYS_ADDR
2030 config CPU_HAS_SMARTMIPS
2031 depends on SYS_SUPPORTS_SMARTMIPS
2032 bool "Support for the SmartMIPS ASE"
2034 SmartMIPS is a extension of the MIPS32 architecture aimed at
2035 increased security at both hardware and software level for
2036 smartcards. Enabling this option will allow proper use of the
2037 SmartMIPS instructions by Linux applications. However a kernel with
2038 this option will not work on a MIPS core without SmartMIPS core. If
2039 you don't know you probably don't have SmartMIPS and should say N
2049 # Vectored interrupt mode is an R2 feature
2051 config CPU_MIPSR2_IRQ_VI
2055 # Extended interrupt mode is an R2 feature
2057 config CPU_MIPSR2_IRQ_EI
2062 depends on !CPU_R3000
2068 config CPU_DADDI_WORKAROUNDS
2071 config CPU_R4000_WORKAROUNDS
2073 select CPU_R4400_WORKAROUNDS
2075 config CPU_R4400_WORKAROUNDS
2079 # - Highmem only makes sense for the 32-bit kernel.
2080 # - The current highmem code will only work properly on physically indexed
2081 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2082 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2083 # moment we protect the user and offer the highmem option only on machines
2084 # where it's known to be safe. This will not offer highmem on a few systems
2085 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2086 # indexed CPUs but we're playing safe.
2087 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2088 # know they might have memory configurations that could make use of highmem
2092 bool "High Memory Support"
2093 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2095 config CPU_SUPPORTS_HIGHMEM
2098 config SYS_SUPPORTS_HIGHMEM
2101 config SYS_SUPPORTS_SMARTMIPS
2104 config ARCH_FLATMEM_ENABLE
2106 depends on !NUMA && !CPU_LOONGSON2
2108 config ARCH_DISCONTIGMEM_ENABLE
2110 default y if SGI_IP27
2112 Say Y to support efficient handling of discontiguous physical memory,
2113 for architectures which are either NUMA (Non-Uniform Memory Access)
2114 or have huge holes in the physical address space for other reasons.
2115 See <file:Documentation/vm/numa> for more.
2117 config ARCH_SPARSEMEM_ENABLE
2119 select SPARSEMEM_STATIC
2123 depends on SYS_SUPPORTS_NUMA
2125 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2126 Access). This option improves performance on systems with more
2127 than two nodes; on two node systems it is generally better to
2128 leave it disabled; on single node systems disable this option
2131 config SYS_SUPPORTS_NUMA
2137 depends on NEED_MULTIPLE_NODES
2139 config HW_PERF_EVENTS
2140 bool "Enable hardware performance counter support for perf events"
2141 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2144 Enable hardware performance counter support for perf events. If
2145 disabled, perf events will use software events only.
2150 bool "Multi-Processing support"
2151 depends on SYS_SUPPORTS_SMP
2152 select USE_GENERIC_SMP_HELPERS
2154 This enables support for systems with more than one CPU. If you have
2155 a system with only one CPU, like most personal computers, say N. If
2156 you have a system with more than one CPU, say Y.
2158 If you say N here, the kernel will run on single and multiprocessor
2159 machines, but will use only one CPU of a multiprocessor machine. If
2160 you say Y here, the kernel will run on many, but not all,
2161 singleprocessor machines. On a singleprocessor machine, the kernel
2162 will run faster if you say N here.
2164 People using multiprocessor machines who say Y here should also say
2165 Y to "Enhanced Real Time Clock Support", below.
2167 See also the SMP-HOWTO available at
2168 <http://www.tldp.org/docs.html#howto>.
2170 If you don't know what to do here, say N.
2175 config SYS_SUPPORTS_MIPS_CMP
2178 config SYS_SUPPORTS_SMP
2181 config NR_CPUS_DEFAULT_1
2184 config NR_CPUS_DEFAULT_2
2187 config NR_CPUS_DEFAULT_4
2190 config NR_CPUS_DEFAULT_8
2193 config NR_CPUS_DEFAULT_16
2196 config NR_CPUS_DEFAULT_32
2199 config NR_CPUS_DEFAULT_64
2203 int "Maximum number of CPUs (2-64)"
2204 range 1 64 if NR_CPUS_DEFAULT_1
2206 default "1" if NR_CPUS_DEFAULT_1
2207 default "2" if NR_CPUS_DEFAULT_2
2208 default "4" if NR_CPUS_DEFAULT_4
2209 default "8" if NR_CPUS_DEFAULT_8
2210 default "16" if NR_CPUS_DEFAULT_16
2211 default "32" if NR_CPUS_DEFAULT_32
2212 default "64" if NR_CPUS_DEFAULT_64
2214 This allows you to specify the maximum number of CPUs which this
2215 kernel will support. The maximum supported value is 32 for 32-bit
2216 kernel and 64 for 64-bit kernels; the minimum value which makes
2217 sense is 1 for Qemu (useful only for kernel debugging purposes)
2218 and 2 for all others.
2220 This is purely to save memory - each supported CPU adds
2221 approximately eight kilobytes to the kernel image. For best
2222 performance should round up your number of processors to the next
2225 config MIPS_PERF_SHARED_TC_COUNTERS
2229 # Timer Interrupt Frequency Configuration
2233 prompt "Timer frequency"
2236 Allows the configuration of the timer frequency.
2239 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2242 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2245 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2248 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2251 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2254 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2257 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2261 config SYS_SUPPORTS_48HZ
2264 config SYS_SUPPORTS_100HZ
2267 config SYS_SUPPORTS_128HZ
2270 config SYS_SUPPORTS_250HZ
2273 config SYS_SUPPORTS_256HZ
2276 config SYS_SUPPORTS_1000HZ
2279 config SYS_SUPPORTS_1024HZ
2282 config SYS_SUPPORTS_ARBIT_HZ
2284 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2285 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2286 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2287 !SYS_SUPPORTS_1024HZ
2292 default 100 if HZ_100
2293 default 128 if HZ_128
2294 default 250 if HZ_250
2295 default 256 if HZ_256
2296 default 1000 if HZ_1000
2297 default 1024 if HZ_1024
2299 source "kernel/Kconfig.preempt"
2302 bool "Kexec system call"
2304 kexec is a system call that implements the ability to shutdown your
2305 current kernel, and to start another kernel. It is like a reboot
2306 but it is independent of the system firmware. And like a reboot
2307 you can start any kernel with it, not just Linux.
2309 The name comes from the similarity to the exec system call.
2311 It is an ongoing process to be certain the hardware in a machine
2312 is properly shutdown, so do not be surprised if this code does not
2313 initially work for you. It may help to enable device hotplugging
2314 support. As of this writing the exact hardware interface is
2315 strongly in flux, so no good recommendation can be made.
2318 bool "Kernel crash dumps"
2320 Generate crash dump after being started by kexec.
2321 This should be normally only set in special crash dump kernels
2322 which are loaded in the main kernel with kexec-tools into
2323 a specially reserved region and then later executed after
2324 a crash by kdump/kexec. The crash dump kernel must be compiled
2325 to a memory address not used by the main kernel or firmware using
2328 config PHYSICAL_START
2329 hex "Physical address where the kernel is loaded"
2330 default "0xffffffff84000000" if 64BIT
2331 default "0x84000000" if 32BIT
2332 depends on CRASH_DUMP
2334 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2335 If you plan to use kernel for capturing the crash dump change
2336 this value to start of the reserved region (the "X" value as
2337 specified in the "crashkernel=YM@XM" command line boot parameter
2338 passed to the panic-ed kernel).
2341 bool "Enable seccomp to safely compute untrusted bytecode"
2345 This kernel feature is useful for number crunching applications
2346 that may need to compute untrusted bytecode during their
2347 execution. By using pipes or other transports made available to
2348 the process as file descriptors supporting the read/write
2349 syscalls, it's possible to isolate those applications in
2350 their own address space using seccomp. Once seccomp is
2351 enabled via /proc/<pid>/seccomp, it cannot be disabled
2352 and the task is only allowed to execute a few safe syscalls
2353 defined by each seccomp mode.
2355 If unsure, say Y. Only embedded should say N here.
2360 select OF_EARLY_FLATTREE
2365 config LOCKDEP_SUPPORT
2369 config STACKTRACE_SUPPORT
2373 source "init/Kconfig"
2375 source "kernel/Kconfig.freezer"
2377 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2385 bool "Support for PCI controller"
2386 depends on HW_HAS_PCI
2388 select GENERIC_PCI_IOMAP
2389 select NO_GENERIC_PCI_IOPORT_MAP
2391 Find out whether you have a PCI motherboard. PCI is the name of a
2392 bus system, i.e. the way the CPU talks to the other stuff inside
2393 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2399 source "drivers/pci/Kconfig"
2401 source "drivers/pci/pcie/Kconfig"
2404 # ISA support is now enabled via select. Too many systems still have the one
2405 # or other ISA chip on the board that users don't know about so don't expect
2406 # users to choose the right thing ...
2413 depends on HW_HAS_EISA
2415 select GENERIC_ISA_DMA
2417 The Extended Industry Standard Architecture (EISA) bus was
2418 developed as an open alternative to the IBM MicroChannel bus.
2420 The EISA bus provided some of the features of the IBM MicroChannel
2421 bus while maintaining backward compatibility with cards made for
2422 the older ISA bus. The EISA bus saw limited use between 1988 and
2423 1995 when it was made obsolete by the PCI bus.
2425 Say Y here if you are building a kernel for an EISA-based machine.
2429 source "drivers/eisa/Kconfig"
2432 bool "TURBOchannel support"
2433 depends on MACH_DECSTATION
2435 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2436 processors. TURBOchannel programming specifications are available
2438 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2440 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2441 Linux driver support status is documented at:
2442 <http://www.linux-mips.org/wiki/DECstation>
2452 select MIPS_EXTERNAL_TIMER
2457 source "drivers/pcmcia/Kconfig"
2459 source "drivers/pci/hotplug/Kconfig"
2462 bool "RapidIO support"
2466 If you say Y here, the kernel will include drivers and
2467 infrastructure code to support RapidIO interconnect devices.
2469 source "drivers/rapidio/Kconfig"
2473 menu "Executable file formats"
2475 source "fs/Kconfig.binfmt"
2480 config MIPS32_COMPAT
2481 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2484 Select this option if you want Linux/MIPS 32-bit binary
2485 compatibility. Since all software available for Linux/MIPS is
2486 currently 32-bit you should say Y here.
2490 depends on MIPS32_COMPAT
2491 select ARCH_WANT_OLD_COMPAT_IPC
2494 config SYSVIPC_COMPAT
2496 depends on COMPAT && SYSVIPC
2500 bool "Kernel support for o32 binaries"
2501 depends on MIPS32_COMPAT
2503 Select this option if you want to run o32 binaries. These are pure
2504 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2505 existing binaries are in this format.
2510 bool "Kernel support for n32 binaries"
2511 depends on MIPS32_COMPAT
2513 Select this option if you want to run n32 binaries. These are
2514 64-bit binaries using 32-bit quantities for addressing and certain
2515 data that would normally be 64-bit. They are used in special
2522 default y if MIPS32_O32 || MIPS32_N32
2526 menu "Power management options"
2528 config ARCH_HIBERNATION_POSSIBLE
2530 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2532 config ARCH_SUSPEND_POSSIBLE
2534 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2536 source "kernel/power/Kconfig"
2540 source "arch/mips/kernel/cpufreq/Kconfig"
2542 source "net/Kconfig"
2544 source "drivers/Kconfig"
2546 source "drivers/firmware/Kconfig"
2550 source "arch/mips/Kconfig.debug"
2552 source "security/Kconfig"
2554 source "crypto/Kconfig"
2556 source "lib/Kconfig"