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 HAVE_DEBUG_KMEMLEAK
21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
22 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
23 select RTC_LIB if !MACH_LOONGSON
24 select GENERIC_ATOMIC64 if !64BIT
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
27 select HAVE_DMA_API_DEBUG
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_PROBE
30 select GENERIC_IRQ_SHOW
31 select HAVE_ARCH_JUMP_LABEL
32 select ARCH_WANT_IPC_PARSE_VERSION
33 select IRQ_FORCED_THREADING
35 select HAVE_MEMBLOCK_NODE_MAP
36 select ARCH_DISCARD_MEMBLOCK
37 select GENERIC_SMP_IDLE_THREAD
38 select BUILDTIME_EXTABLE_SORT
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_CMOS_UPDATE
41 select HAVE_MOD_ARCH_SPECIFIC
42 select MODULES_USE_ELF_REL
43 select MODULES_USE_ELF_RELA if 64BIT
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"
111 select DMA_NONCOHERENT
115 select SYS_SUPPORTS_32BIT_KERNEL
116 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 if EXPERIMENTAL
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 if EXPERIMENTAL
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"
399 depends on EXPERIMENTAL
402 select DMA_NONCOHERENT
404 select NO_EXCEPT_FILL
406 select SYS_HAS_CPU_MIPS32_R1
407 select SYS_HAS_CPU_MIPS32_R2
408 select SYS_SUPPORTS_32BIT_KERNEL
409 select SYS_SUPPORTS_BIG_ENDIAN
412 select SERIAL_8250_CONSOLE
414 This adds support for the PMC-Sierra family of Multi-Service
415 Processor System-On-A-Chips. These parts include a number
416 of integrated peripherals, interfaces and DSPs in addition to
417 a variety of MIPS cores.
420 bool "PMC-Sierra Yosemite eval board"
429 select SYS_HAS_CPU_RM9000
430 select SYS_HAS_EARLY_PRINTK
431 select SYS_SUPPORTS_32BIT_KERNEL
432 select SYS_SUPPORTS_64BIT_KERNEL
433 select SYS_SUPPORTS_BIG_ENDIAN
434 select SYS_SUPPORTS_HIGHMEM
435 select SYS_SUPPORTS_SMP
437 Yosemite is an evaluation board for the RM9000x2 processor
438 manufactured by PMC-Sierra.
444 select CPU_MIPSR2_IRQ_VI
445 select CPU_MIPSR2_IRQ_EI
447 select DMA_NONCOHERENT
449 select SYS_HAS_EARLY_PRINTK
450 select SYS_HAS_CPU_MIPS32_R2
451 select SYS_SUPPORTS_32BIT_KERNEL
452 select SYS_SUPPORTS_BIG_ENDIAN
453 select SYS_SUPPORTS_HIGHMEM
454 select USB_OHCI_LITTLE_ENDIAN
456 This enables support for the Cisco PowerTV Platform.
459 bool "SGI IP22 (Indy/Indigo2)"
465 select DEFAULT_SGI_PARTITION
466 select DMA_NONCOHERENT
470 select IP22_CPU_SCACHE
472 select GENERIC_ISA_DMA_SUPPORT_BROKEN
474 select SGI_HAS_INDYDOG
480 select SYS_HAS_CPU_R4X00
481 select SYS_HAS_CPU_R5000
483 # Disable EARLY_PRINTK for now since it leads to overwritten prom
484 # memory during early boot on some machines.
486 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
487 # for a more details discussion
489 # select SYS_HAS_EARLY_PRINTK
490 select SYS_SUPPORTS_32BIT_KERNEL
491 select SYS_SUPPORTS_64BIT_KERNEL
492 select SYS_SUPPORTS_BIG_ENDIAN
494 This are the SGI Indy, Challenge S and Indigo2, as well as certain
495 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
496 that runs on these, say Y here.
499 bool "SGI IP27 (Origin200/2000)"
503 select DEFAULT_SGI_PARTITION
505 select SYS_HAS_EARLY_PRINTK
507 select NR_CPUS_DEFAULT_64
508 select SYS_HAS_CPU_R10000
509 select SYS_SUPPORTS_64BIT_KERNEL
510 select SYS_SUPPORTS_BIG_ENDIAN
511 select SYS_SUPPORTS_NUMA
512 select SYS_SUPPORTS_SMP
514 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
515 workstations. To compile a Linux kernel that runs on these, say Y
519 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
520 depends on EXPERIMENTAL
526 select DEFAULT_SGI_PARTITION
527 select DMA_NONCOHERENT
528 select GENERIC_ISA_DMA_SUPPORT_BROKEN
534 select SGI_HAS_INDYDOG
540 select SYS_HAS_CPU_R10000
542 # Disable EARLY_PRINTK for now since it leads to overwritten prom
543 # memory during early boot on some machines.
545 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
546 # for a more details discussion
548 # select SYS_HAS_EARLY_PRINTK
549 select SYS_SUPPORTS_64BIT_KERNEL
550 select SYS_SUPPORTS_BIG_ENDIAN
552 This is the SGI Indigo2 with R10000 processor. To compile a Linux
553 kernel that runs on these, say Y here.
562 select DMA_NONCOHERENT
565 select R5000_CPU_SCACHE
566 select RM7000_CPU_SCACHE
567 select SYS_HAS_CPU_R5000
568 select SYS_HAS_CPU_R10000 if BROKEN
569 select SYS_HAS_CPU_RM7000
570 select SYS_HAS_CPU_NEVADA
571 select SYS_SUPPORTS_64BIT_KERNEL
572 select SYS_SUPPORTS_BIG_ENDIAN
574 If you want this kernel to run on SGI O2 workstation, say Y here.
577 bool "Sibyte BCM91120C-CRhine"
578 depends on EXPERIMENTAL
581 select SIBYTE_BCM1120
583 select SYS_HAS_CPU_SB1
584 select SYS_SUPPORTS_BIG_ENDIAN
585 select SYS_SUPPORTS_LITTLE_ENDIAN
588 bool "Sibyte BCM91120x-Carmel"
589 depends on EXPERIMENTAL
592 select SIBYTE_BCM1120
594 select SYS_HAS_CPU_SB1
595 select SYS_SUPPORTS_BIG_ENDIAN
596 select SYS_SUPPORTS_LITTLE_ENDIAN
599 bool "Sibyte BCM91125C-CRhone"
600 depends on EXPERIMENTAL
603 select SIBYTE_BCM1125
605 select SYS_HAS_CPU_SB1
606 select SYS_SUPPORTS_BIG_ENDIAN
607 select SYS_SUPPORTS_HIGHMEM
608 select SYS_SUPPORTS_LITTLE_ENDIAN
611 bool "Sibyte BCM91125E-Rhone"
612 depends on EXPERIMENTAL
615 select SIBYTE_BCM1125H
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_LITTLE_ENDIAN
622 bool "Sibyte BCM91250A-SWARM"
625 select HAVE_PATA_PLATFORM
626 select NR_CPUS_DEFAULT_2
629 select SYS_HAS_CPU_SB1
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select SYS_SUPPORTS_HIGHMEM
632 select SYS_SUPPORTS_LITTLE_ENDIAN
633 select ZONE_DMA32 if 64BIT
635 config SIBYTE_LITTLESUR
636 bool "Sibyte BCM91250C2-LittleSur"
637 depends on EXPERIMENTAL
640 select HAVE_PATA_PLATFORM
641 select NR_CPUS_DEFAULT_2
644 select SYS_HAS_CPU_SB1
645 select SYS_SUPPORTS_BIG_ENDIAN
646 select SYS_SUPPORTS_HIGHMEM
647 select SYS_SUPPORTS_LITTLE_ENDIAN
649 config SIBYTE_SENTOSA
650 bool "Sibyte BCM91250E-Sentosa"
651 depends on EXPERIMENTAL
654 select NR_CPUS_DEFAULT_2
657 select SYS_HAS_CPU_SB1
658 select SYS_SUPPORTS_BIG_ENDIAN
659 select SYS_SUPPORTS_LITTLE_ENDIAN
662 bool "Sibyte BCM91480B-BigSur"
665 select NR_CPUS_DEFAULT_4
666 select SIBYTE_BCM1x80
668 select SYS_HAS_CPU_SB1
669 select SYS_SUPPORTS_BIG_ENDIAN
670 select SYS_SUPPORTS_HIGHMEM
671 select SYS_SUPPORTS_LITTLE_ENDIAN
672 select ZONE_DMA32 if 64BIT
675 bool "SNI RM200/300/400"
676 select FW_ARC if CPU_LITTLE_ENDIAN
677 select FW_ARC32 if CPU_LITTLE_ENDIAN
678 select SNIPROM if CPU_BIG_ENDIAN
679 select ARCH_MAY_HAVE_PC_FDC
683 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
684 select DMA_NONCOHERENT
685 select GENERIC_ISA_DMA
686 select HAVE_PCSPKR_PLATFORM
693 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
694 select SYS_HAS_CPU_R4X00
695 select SYS_HAS_CPU_R5000
696 select SYS_HAS_CPU_R10000
697 select R5000_CPU_SCACHE
698 select SYS_HAS_EARLY_PRINTK
699 select SYS_SUPPORTS_32BIT_KERNEL
700 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
701 select SYS_SUPPORTS_BIG_ENDIAN
702 select SYS_SUPPORTS_HIGHMEM
703 select SYS_SUPPORTS_LITTLE_ENDIAN
705 The SNI RM200/300/400 are MIPS-based machines manufactured by
706 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
707 Technology and now in turn merged with Fujitsu. Say Y here to
708 support this machine type.
711 bool "Toshiba TX39 series based machines"
714 bool "Toshiba TX49 series based machines"
716 config MIKROTIK_RB532
717 bool "Mikrotik RB532 boards"
720 select DMA_NONCOHERENT
723 select SYS_HAS_CPU_MIPS32_R1
724 select SYS_SUPPORTS_32BIT_KERNEL
725 select SYS_SUPPORTS_LITTLE_ENDIAN
728 select ARCH_REQUIRE_GPIOLIB
730 Support the Mikrotik(tm) RouterBoard 532 series,
731 based on the IDT RC32434 SoC.
734 bool "Wind River PPMC board"
739 select DMA_NONCOHERENT
741 select PCI_GT64XXX_PCI0
743 select SYS_HAS_CPU_MIPS32_R1
744 select SYS_HAS_CPU_MIPS32_R2
745 select SYS_HAS_CPU_MIPS64_R1
746 select SYS_HAS_CPU_NEVADA
747 select SYS_HAS_CPU_RM7000
748 select SYS_SUPPORTS_32BIT_KERNEL
749 select SYS_SUPPORTS_64BIT_KERNEL
750 select SYS_SUPPORTS_BIG_ENDIAN
751 select SYS_SUPPORTS_LITTLE_ENDIAN
753 This enables support for the Wind River MIPS32 4KC PPMC evaluation
754 board, which is based on GT64120 bridge chip.
756 config CAVIUM_OCTEON_SIMULATOR
757 bool "Cavium Networks Octeon Simulator"
759 select 64BIT_PHYS_ADDR
761 select SYS_SUPPORTS_64BIT_KERNEL
762 select SYS_SUPPORTS_BIG_ENDIAN
763 select SYS_SUPPORTS_HOTPLUG_CPU
764 select SYS_HAS_CPU_CAVIUM_OCTEON
767 The Octeon simulator is software performance model of the Cavium
768 Octeon Processor. It supports simulating Octeon processors on x86
771 config CAVIUM_OCTEON_REFERENCE_BOARD
772 bool "Cavium Networks Octeon reference board"
774 select 64BIT_PHYS_ADDR
776 select SYS_SUPPORTS_64BIT_KERNEL
777 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HOTPLUG_CPU
780 select SYS_HAS_EARLY_PRINTK
781 select SYS_HAS_CPU_CAVIUM_OCTEON
784 select ARCH_SUPPORTS_MSI
786 select USB_ARCH_HAS_OHCI
787 select USB_ARCH_HAS_EHCI
790 This option supports all of the Octeon reference boards from Cavium
791 Networks. It builds a kernel that dynamically determines the Octeon
792 CPU type and supports all known board reference implementations.
793 Some of the supported boards are:
800 Say Y here for most Octeon reference boards.
803 bool "Netlogic XLR/XLS based systems"
804 depends on EXPERIMENTAL
807 select SYS_HAS_CPU_XLR
808 select SYS_SUPPORTS_SMP
811 select SYS_SUPPORTS_32BIT_KERNEL
812 select SYS_SUPPORTS_64BIT_KERNEL
813 select 64BIT_PHYS_ADDR
814 select SYS_SUPPORTS_BIG_ENDIAN
815 select SYS_SUPPORTS_HIGHMEM
817 select NR_CPUS_DEFAULT_32
821 select ARCH_SUPPORTS_MSI
822 select ZONE_DMA if 64BIT
824 select SYS_HAS_EARLY_PRINTK
825 select USB_ARCH_HAS_OHCI if USB_SUPPORT
826 select USB_ARCH_HAS_EHCI if USB_SUPPORT
828 Support for systems based on Netlogic XLR and XLS processors.
829 Say Y here if you have a XLR or XLS based board.
832 bool "Netlogic XLP based systems"
833 depends on EXPERIMENTAL
836 select SYS_HAS_CPU_XLP
837 select SYS_SUPPORTS_SMP
839 select SYS_SUPPORTS_32BIT_KERNEL
840 select SYS_SUPPORTS_64BIT_KERNEL
841 select 64BIT_PHYS_ADDR
842 select SYS_SUPPORTS_BIG_ENDIAN
843 select SYS_SUPPORTS_LITTLE_ENDIAN
844 select SYS_SUPPORTS_HIGHMEM
846 select NR_CPUS_DEFAULT_32
850 select ZONE_DMA if 64BIT
852 select SYS_HAS_EARLY_PRINTK
855 This board is based on Netlogic XLP Processor.
856 Say Y here if you have a XLP based board.
860 source "arch/mips/alchemy/Kconfig"
861 source "arch/mips/ath79/Kconfig"
862 source "arch/mips/bcm47xx/Kconfig"
863 source "arch/mips/bcm63xx/Kconfig"
864 source "arch/mips/jazz/Kconfig"
865 source "arch/mips/jz4740/Kconfig"
866 source "arch/mips/lantiq/Kconfig"
867 source "arch/mips/lasat/Kconfig"
868 source "arch/mips/pmc-sierra/Kconfig"
869 source "arch/mips/powertv/Kconfig"
870 source "arch/mips/sgi-ip27/Kconfig"
871 source "arch/mips/sibyte/Kconfig"
872 source "arch/mips/txx9/Kconfig"
873 source "arch/mips/vr41xx/Kconfig"
874 source "arch/mips/cavium-octeon/Kconfig"
875 source "arch/mips/loongson/Kconfig"
876 source "arch/mips/loongson1/Kconfig"
877 source "arch/mips/netlogic/Kconfig"
881 config RWSEM_GENERIC_SPINLOCK
885 config RWSEM_XCHGADD_ALGORITHM
888 config ARCH_HAS_ILOG2_U32
892 config ARCH_HAS_ILOG2_U64
896 config GENERIC_HWEIGHT
900 config GENERIC_CALIBRATE_DELAY
904 config SCHED_OMIT_FRAME_POINTER
909 # Select some configuration options automatically based on user selections.
914 config ARCH_MAY_HAVE_PC_FDC
959 select ARCH_REQUIRE_GPIOLIB
965 config ARCH_DMA_ADDR_T_64BIT
966 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
971 config DMA_NONCOHERENT
973 select NEED_DMA_MAP_STATE
975 config NEED_DMA_MAP_STATE
978 config SYS_HAS_EARLY_PRINTK
982 bool "Support for hot-pluggable CPUs"
983 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
985 Say Y here to allow turning CPUs off and on. CPUs can be
986 controlled through /sys/devices/system/cpu.
987 (Note: power management support will enable this option
988 automatically on SMP systems. )
989 Say N if you want to disable CPU hotplug.
991 config SYS_SUPPORTS_HOTPLUG_CPU
1006 config MIPS_DISABLE_OBSOLETE_IDE
1018 config GENERIC_ISA_DMA
1020 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1023 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1025 select GENERIC_ISA_DMA
1033 config HOLES_IN_ZONE
1037 # Endianness selection. Sufficiently obscure so many users don't know what to
1038 # answer,so we try hard to limit the available choices. Also the use of a
1039 # choice statement should be more obvious to the user.
1042 prompt "Endianness selection"
1044 Some MIPS machines can be configured for either little or big endian
1045 byte order. These modes require different kernels and a different
1046 Linux distribution. In general there is one preferred byteorder for a
1047 particular system but some systems are just as commonly used in the
1048 one or the other endianness.
1050 config CPU_BIG_ENDIAN
1052 depends on SYS_SUPPORTS_BIG_ENDIAN
1054 config CPU_LITTLE_ENDIAN
1055 bool "Little endian"
1056 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1064 config SYS_SUPPORTS_APM_EMULATION
1067 config SYS_SUPPORTS_BIG_ENDIAN
1070 config SYS_SUPPORTS_LITTLE_ENDIAN
1073 config SYS_SUPPORTS_HUGETLBFS
1075 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1078 config MIPS_HUGE_TLB_SUPPORT
1079 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1105 config MIPS_BOARDS_GEN
1108 config PCI_GT64XXX_PCI0
1111 config NO_EXCEPT_FILL
1116 select SERIAL_RM9000
1122 select DMA_NONCOHERENT
1124 select SWAP_IO_SPACE
1125 select SYS_HAS_CPU_R5500
1126 select SYS_SUPPORTS_32BIT_KERNEL
1127 select SYS_SUPPORTS_64BIT_KERNEL
1128 select SYS_SUPPORTS_BIG_ENDIAN
1135 select DMA_NONCOHERENT
1136 select SYS_HAS_CPU_MIPS32_R2
1137 select SYS_SUPPORTS_32BIT_KERNEL
1138 select SYS_SUPPORTS_LITTLE_ENDIAN
1139 select SYS_SUPPORTS_BIG_ENDIAN
1141 select CPU_MIPSR2_IRQ_VI
1153 select DMA_NONCOHERENT
1155 select SYS_HAS_CPU_MIPS32_R1
1156 select SYS_HAS_EARLY_PRINTK
1157 select SYS_SUPPORTS_32BIT_KERNEL
1160 config SWAP_IO_SPACE
1163 config SERIAL_RM9000
1166 config SGI_HAS_INDYDOG
1178 config SGI_HAS_ZILOG
1181 config SGI_HAS_I8042
1184 config DEFAULT_SGI_PARTITION
1196 config MIPS_L1_CACHE_SHIFT
1198 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1199 default "6" if MIPS_CPU_SCACHE
1200 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1203 config HAVE_STD_PC_SERIAL_PORT
1207 bool "ARC console support"
1208 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1212 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1217 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1226 menu "CPU selection"
1232 config CPU_LOONGSON2E
1234 depends on SYS_HAS_CPU_LOONGSON2E
1235 select CPU_LOONGSON2
1237 The Loongson 2E processor implements the MIPS III instruction set
1238 with many extensions.
1240 It has an internal FPGA northbridge, which is compatible to
1243 config CPU_LOONGSON2F
1245 depends on SYS_HAS_CPU_LOONGSON2F
1246 select CPU_LOONGSON2
1248 select ARCH_REQUIRE_GPIOLIB
1250 The Loongson 2F processor implements the MIPS III instruction set
1251 with many extensions.
1253 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1254 have a similar programming interface with FPGA northbridge used in
1257 config CPU_LOONGSON1B
1259 depends on SYS_HAS_CPU_LOONGSON1B
1260 select CPU_LOONGSON1
1262 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1263 release 2 instruction set.
1265 config CPU_MIPS32_R1
1266 bool "MIPS32 Release 1"
1267 depends on SYS_HAS_CPU_MIPS32_R1
1268 select CPU_HAS_PREFETCH
1269 select CPU_SUPPORTS_32BIT_KERNEL
1270 select CPU_SUPPORTS_HIGHMEM
1272 Choose this option to build a kernel for release 1 or later of the
1273 MIPS32 architecture. Most modern embedded systems with a 32-bit
1274 MIPS processor are based on a MIPS32 processor. If you know the
1275 specific type of processor in your system, choose those that one
1276 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1277 Release 2 of the MIPS32 architecture is available since several
1278 years so chances are you even have a MIPS32 Release 2 processor
1279 in which case you should choose CPU_MIPS32_R2 instead for better
1282 config CPU_MIPS32_R2
1283 bool "MIPS32 Release 2"
1284 depends on SYS_HAS_CPU_MIPS32_R2
1285 select CPU_HAS_PREFETCH
1286 select CPU_SUPPORTS_32BIT_KERNEL
1287 select CPU_SUPPORTS_HIGHMEM
1289 Choose this option to build a kernel for release 2 or later of the
1290 MIPS32 architecture. Most modern embedded systems with a 32-bit
1291 MIPS processor are based on a MIPS32 processor. If you know the
1292 specific type of processor in your system, choose those that one
1293 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1295 config CPU_MIPS64_R1
1296 bool "MIPS64 Release 1"
1297 depends on SYS_HAS_CPU_MIPS64_R1
1298 select CPU_HAS_PREFETCH
1299 select CPU_SUPPORTS_32BIT_KERNEL
1300 select CPU_SUPPORTS_64BIT_KERNEL
1301 select CPU_SUPPORTS_HIGHMEM
1302 select CPU_SUPPORTS_HUGEPAGES
1304 Choose this option to build a kernel for release 1 or later of the
1305 MIPS64 architecture. Many modern embedded systems with a 64-bit
1306 MIPS processor are based on a MIPS64 processor. If you know the
1307 specific type of processor in your system, choose those that one
1308 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1309 Release 2 of the MIPS64 architecture is available since several
1310 years so chances are you even have a MIPS64 Release 2 processor
1311 in which case you should choose CPU_MIPS64_R2 instead for better
1314 config CPU_MIPS64_R2
1315 bool "MIPS64 Release 2"
1316 depends on SYS_HAS_CPU_MIPS64_R2
1317 select CPU_HAS_PREFETCH
1318 select CPU_SUPPORTS_32BIT_KERNEL
1319 select CPU_SUPPORTS_64BIT_KERNEL
1320 select CPU_SUPPORTS_HIGHMEM
1321 select CPU_SUPPORTS_HUGEPAGES
1323 Choose this option to build a kernel for release 2 or later of the
1324 MIPS64 architecture. Many modern embedded systems with a 64-bit
1325 MIPS processor are based on a MIPS64 processor. If you know the
1326 specific type of processor in your system, choose those that one
1327 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1331 depends on SYS_HAS_CPU_R3000
1333 select CPU_SUPPORTS_32BIT_KERNEL
1334 select CPU_SUPPORTS_HIGHMEM
1336 Please make sure to pick the right CPU type. Linux/MIPS is not
1337 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1338 *not* work on R4000 machines and vice versa. However, since most
1339 of the supported machines have an R4000 (or similar) CPU, R4x00
1340 might be a safe bet. If the resulting kernel does not work,
1341 try to recompile with R3000.
1345 depends on SYS_HAS_CPU_TX39XX
1346 select CPU_SUPPORTS_32BIT_KERNEL
1350 depends on SYS_HAS_CPU_VR41XX
1351 select CPU_SUPPORTS_32BIT_KERNEL
1352 select CPU_SUPPORTS_64BIT_KERNEL
1354 The options selects support for the NEC VR4100 series of processors.
1355 Only choose this option if you have one of these processors as a
1356 kernel built with this option will not run on any other type of
1357 processor or vice versa.
1361 depends on SYS_HAS_CPU_R4300
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1365 MIPS Technologies R4300-series processors.
1369 depends on SYS_HAS_CPU_R4X00
1370 select CPU_SUPPORTS_32BIT_KERNEL
1371 select CPU_SUPPORTS_64BIT_KERNEL
1372 select CPU_SUPPORTS_HUGEPAGES
1374 MIPS Technologies R4000-series processors other than 4300, including
1375 the R4000, R4400, R4600, and 4700.
1379 depends on SYS_HAS_CPU_TX49XX
1380 select CPU_HAS_PREFETCH
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1383 select CPU_SUPPORTS_HUGEPAGES
1387 depends on SYS_HAS_CPU_R5000
1388 select CPU_SUPPORTS_32BIT_KERNEL
1389 select CPU_SUPPORTS_64BIT_KERNEL
1390 select CPU_SUPPORTS_HUGEPAGES
1392 MIPS Technologies R5000-series processors other than the Nevada.
1396 depends on SYS_HAS_CPU_R5432
1397 select CPU_SUPPORTS_32BIT_KERNEL
1398 select CPU_SUPPORTS_64BIT_KERNEL
1399 select CPU_SUPPORTS_HUGEPAGES
1403 depends on SYS_HAS_CPU_R5500
1404 select CPU_SUPPORTS_32BIT_KERNEL
1405 select CPU_SUPPORTS_64BIT_KERNEL
1406 select CPU_SUPPORTS_HUGEPAGES
1408 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1413 depends on EXPERIMENTAL
1414 depends on SYS_HAS_CPU_R6000
1415 select CPU_SUPPORTS_32BIT_KERNEL
1417 MIPS Technologies R6000 and R6000A series processors. Note these
1418 processors are extremely rare and the support for them is incomplete.
1422 depends on SYS_HAS_CPU_NEVADA
1423 select CPU_SUPPORTS_32BIT_KERNEL
1424 select CPU_SUPPORTS_64BIT_KERNEL
1425 select CPU_SUPPORTS_HUGEPAGES
1427 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1431 depends on EXPERIMENTAL
1432 depends on SYS_HAS_CPU_R8000
1433 select CPU_HAS_PREFETCH
1434 select CPU_SUPPORTS_64BIT_KERNEL
1436 MIPS Technologies R8000 processors. Note these processors are
1437 uncommon and the support for them is incomplete.
1441 depends on SYS_HAS_CPU_R10000
1442 select CPU_HAS_PREFETCH
1443 select CPU_SUPPORTS_32BIT_KERNEL
1444 select CPU_SUPPORTS_64BIT_KERNEL
1445 select CPU_SUPPORTS_HIGHMEM
1446 select CPU_SUPPORTS_HUGEPAGES
1448 MIPS Technologies R10000-series processors.
1452 depends on SYS_HAS_CPU_RM7000
1453 select CPU_HAS_PREFETCH
1454 select CPU_SUPPORTS_32BIT_KERNEL
1455 select CPU_SUPPORTS_64BIT_KERNEL
1456 select CPU_SUPPORTS_HIGHMEM
1457 select CPU_SUPPORTS_HUGEPAGES
1461 depends on SYS_HAS_CPU_RM9000
1462 select CPU_HAS_PREFETCH
1463 select CPU_SUPPORTS_32BIT_KERNEL
1464 select CPU_SUPPORTS_64BIT_KERNEL
1465 select CPU_SUPPORTS_HIGHMEM
1466 select CPU_SUPPORTS_HUGEPAGES
1467 select WEAK_ORDERING
1471 depends on SYS_HAS_CPU_SB1
1472 select CPU_SUPPORTS_32BIT_KERNEL
1473 select CPU_SUPPORTS_64BIT_KERNEL
1474 select CPU_SUPPORTS_HIGHMEM
1475 select CPU_SUPPORTS_HUGEPAGES
1476 select WEAK_ORDERING
1478 config CPU_CAVIUM_OCTEON
1479 bool "Cavium Octeon processor"
1480 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1481 select ARCH_SPARSEMEM_ENABLE
1482 select CPU_HAS_PREFETCH
1483 select CPU_SUPPORTS_64BIT_KERNEL
1484 select SYS_SUPPORTS_SMP
1485 select NR_CPUS_DEFAULT_16
1486 select WEAK_ORDERING
1487 select CPU_SUPPORTS_HIGHMEM
1488 select CPU_SUPPORTS_HUGEPAGES
1492 The Cavium Octeon processor is a highly integrated chip containing
1493 many ethernet hardware widgets for networking tasks. The processor
1494 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1495 Full details can be found at http://www.caviumnetworks.com.
1497 config CPU_BMIPS3300
1499 depends on SYS_HAS_CPU_BMIPS3300
1502 Broadcom BMIPS3300 processors.
1504 config CPU_BMIPS4350
1506 depends on SYS_HAS_CPU_BMIPS4350
1508 select SYS_SUPPORTS_SMP
1509 select SYS_SUPPORTS_HOTPLUG_CPU
1511 Broadcom BMIPS4350 ("VIPER") processors.
1513 config CPU_BMIPS4380
1515 depends on SYS_HAS_CPU_BMIPS4380
1517 select SYS_SUPPORTS_SMP
1518 select SYS_SUPPORTS_HOTPLUG_CPU
1520 Broadcom BMIPS4380 processors.
1522 config CPU_BMIPS5000
1524 depends on SYS_HAS_CPU_BMIPS5000
1526 select CPU_SUPPORTS_HIGHMEM
1527 select MIPS_CPU_SCACHE
1528 select SYS_SUPPORTS_SMP
1529 select SYS_SUPPORTS_HOTPLUG_CPU
1531 Broadcom BMIPS5000 processors.
1534 bool "Netlogic XLR SoC"
1535 depends on SYS_HAS_CPU_XLR
1536 select CPU_SUPPORTS_32BIT_KERNEL
1537 select CPU_SUPPORTS_64BIT_KERNEL
1538 select CPU_SUPPORTS_HIGHMEM
1539 select CPU_SUPPORTS_HUGEPAGES
1540 select WEAK_ORDERING
1541 select WEAK_REORDERING_BEYOND_LLSC
1543 Netlogic Microsystems XLR/XLS processors.
1546 bool "Netlogic XLP SoC"
1547 depends on SYS_HAS_CPU_XLP
1548 select CPU_SUPPORTS_32BIT_KERNEL
1549 select CPU_SUPPORTS_64BIT_KERNEL
1550 select CPU_SUPPORTS_HIGHMEM
1552 select WEAK_ORDERING
1553 select WEAK_REORDERING_BEYOND_LLSC
1554 select CPU_HAS_PREFETCH
1556 Netlogic Microsystems XLP processors.
1560 config CPU_NOP_WORKAROUNDS
1563 config CPU_JUMP_WORKAROUNDS
1566 config CPU_LOONGSON2F_WORKAROUNDS
1567 bool "Loongson 2F Workarounds"
1569 select CPU_NOP_WORKAROUNDS
1570 select CPU_JUMP_WORKAROUNDS
1572 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1573 require workarounds. Without workarounds the system may hang
1574 unexpectedly. For more information please refer to the gas
1575 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1577 Loongson 2F03 and later have fixed these issues and no workarounds
1578 are needed. The workarounds have no significant side effect on them
1579 but may decrease the performance of the system so this option should
1580 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1583 If unsure, please say Y.
1584 endif # CPU_LOONGSON2F
1586 config SYS_SUPPORTS_ZBOOT
1588 select HAVE_KERNEL_GZIP
1589 select HAVE_KERNEL_BZIP2
1590 select HAVE_KERNEL_LZMA
1591 select HAVE_KERNEL_LZO
1593 config SYS_SUPPORTS_ZBOOT_UART16550
1595 select SYS_SUPPORTS_ZBOOT
1597 config CPU_LOONGSON2
1599 select CPU_SUPPORTS_32BIT_KERNEL
1600 select CPU_SUPPORTS_64BIT_KERNEL
1601 select CPU_SUPPORTS_HIGHMEM
1602 select CPU_SUPPORTS_HUGEPAGES
1604 config CPU_LOONGSON1
1608 select CPU_HAS_PREFETCH
1609 select CPU_SUPPORTS_32BIT_KERNEL
1610 select CPU_SUPPORTS_HIGHMEM
1615 select CPU_SUPPORTS_32BIT_KERNEL
1616 select DMA_NONCOHERENT
1618 select SWAP_IO_SPACE
1619 select WEAK_ORDERING
1621 config SYS_HAS_CPU_LOONGSON2E
1624 config SYS_HAS_CPU_LOONGSON2F
1626 select CPU_SUPPORTS_CPUFREQ
1627 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1628 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1630 config SYS_HAS_CPU_LOONGSON1B
1633 config SYS_HAS_CPU_MIPS32_R1
1636 config SYS_HAS_CPU_MIPS32_R2
1639 config SYS_HAS_CPU_MIPS64_R1
1642 config SYS_HAS_CPU_MIPS64_R2
1645 config SYS_HAS_CPU_R3000
1648 config SYS_HAS_CPU_TX39XX
1651 config SYS_HAS_CPU_VR41XX
1654 config SYS_HAS_CPU_R4300
1657 config SYS_HAS_CPU_R4X00
1660 config SYS_HAS_CPU_TX49XX
1663 config SYS_HAS_CPU_R5000
1666 config SYS_HAS_CPU_R5432
1669 config SYS_HAS_CPU_R5500
1672 config SYS_HAS_CPU_R6000
1675 config SYS_HAS_CPU_NEVADA
1678 config SYS_HAS_CPU_R8000
1681 config SYS_HAS_CPU_R10000
1684 config SYS_HAS_CPU_RM7000
1687 config SYS_HAS_CPU_RM9000
1690 config SYS_HAS_CPU_SB1
1693 config SYS_HAS_CPU_CAVIUM_OCTEON
1696 config SYS_HAS_CPU_BMIPS3300
1699 config SYS_HAS_CPU_BMIPS4350
1702 config SYS_HAS_CPU_BMIPS4380
1705 config SYS_HAS_CPU_BMIPS5000
1708 config SYS_HAS_CPU_XLR
1711 config SYS_HAS_CPU_XLP
1715 # CPU may reorder R->R, R->W, W->R, W->W
1716 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1718 config WEAK_ORDERING
1722 # CPU may reorder reads and writes beyond LL/SC
1723 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1725 config WEAK_REORDERING_BEYOND_LLSC
1730 # These two indicate any level of the MIPS32 and MIPS64 architecture
1734 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1738 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1741 # These two indicate the revision of the architecture, either Release 1 or Release 2
1745 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1749 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1751 config SYS_SUPPORTS_32BIT_KERNEL
1753 config SYS_SUPPORTS_64BIT_KERNEL
1755 config CPU_SUPPORTS_32BIT_KERNEL
1757 config CPU_SUPPORTS_64BIT_KERNEL
1759 config CPU_SUPPORTS_CPUFREQ
1761 config CPU_SUPPORTS_ADDRWINCFG
1763 config CPU_SUPPORTS_HUGEPAGES
1765 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1767 config MIPS_PGD_C0_CONTEXT
1769 default y if 64BIT && CPU_MIPSR2
1772 # Set to y for ptrace access to watch registers.
1774 config HARDWARE_WATCHPOINTS
1776 default y if CPU_MIPSR1 || CPU_MIPSR2
1781 prompt "Kernel code model"
1783 You should only select this option if you have a workload that
1784 actually benefits from 64-bit processing or if your machine has
1785 large memory. You will only be presented a single option in this
1786 menu if your system does not support both 32-bit and 64-bit kernels.
1789 bool "32-bit kernel"
1790 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1793 Select this option if you want to build a 32-bit kernel.
1795 bool "64-bit kernel"
1796 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1797 select HAVE_SYSCALL_WRAPPERS
1799 Select this option if you want to build a 64-bit kernel.
1804 prompt "Kernel page size"
1805 default PAGE_SIZE_4KB
1807 config PAGE_SIZE_4KB
1809 depends on !CPU_LOONGSON2
1811 This option select the standard 4kB Linux page size. On some
1812 R3000-family processors this is the only available page size. Using
1813 4kB page size will minimize memory consumption and is therefore
1814 recommended for low memory systems.
1816 config PAGE_SIZE_8KB
1818 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1820 Using 8kB page size will result in higher performance kernel at
1821 the price of higher memory consumption. This option is available
1822 only on R8000 and cnMIPS processors. Note that you will need a
1823 suitable Linux distribution to support this.
1825 config PAGE_SIZE_16KB
1827 depends on !CPU_R3000 && !CPU_TX39XX
1829 Using 16kB page size will result in higher performance kernel at
1830 the price of higher memory consumption. This option is available on
1831 all non-R3000 family processors. Note that you will need a suitable
1832 Linux distribution to support this.
1834 config PAGE_SIZE_32KB
1836 depends on CPU_CAVIUM_OCTEON
1838 Using 32kB page size will result in higher performance kernel at
1839 the price of higher memory consumption. This option is available
1840 only on cnMIPS cores. Note that you will need a suitable Linux
1841 distribution to support this.
1843 config PAGE_SIZE_64KB
1845 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1847 Using 64kB page size will result in higher performance kernel at
1848 the price of higher memory consumption. This option is available on
1849 all non-R3000 family processor. Not that at the time of this
1850 writing this option is still high experimental.
1854 config FORCE_MAX_ZONEORDER
1855 int "Maximum zone order"
1856 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1857 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1858 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1859 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1860 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1861 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1865 The kernel memory allocator divides physically contiguous memory
1866 blocks into "zones", where each zone is a power of two number of
1867 pages. This option selects the largest power of two that the kernel
1868 keeps in the memory allocator. If you need to allocate very large
1869 blocks of physically contiguous memory, then you may need to
1870 increase this value.
1872 This config option is actually maximum order plus one. For example,
1873 a value of 11 means that the largest free memory block is 2^10 pages.
1875 The page size is not necessarily 4KB. Keep this in mind
1876 when choosing a value for this option.
1881 config IP22_CPU_SCACHE
1886 # Support for a MIPS32 / MIPS64 style S-caches
1888 config MIPS_CPU_SCACHE
1892 config R5000_CPU_SCACHE
1896 config RM7000_CPU_SCACHE
1900 config SIBYTE_DMA_PAGEOPS
1901 bool "Use DMA to clear/copy pages"
1904 Instead of using the CPU to zero and copy pages, use a Data Mover
1905 channel. These DMA channels are otherwise unused by the standard
1906 SiByte Linux port. Seems to give a small performance benefit.
1908 config CPU_HAS_PREFETCH
1911 config CPU_GENERIC_DUMP_TLB
1913 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1917 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1919 config CPU_R4K_CACHE_TLB
1921 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1924 prompt "MIPS MT options"
1926 config MIPS_MT_DISABLED
1927 bool "Disable multithreading support."
1929 Use this option if your workload can't take advantage of
1930 MIPS hardware multithreading support. On systems that don't have
1931 the option of an MT-enabled processor this option will be the only
1932 option in this menu.
1935 bool "Use 1 TC on each available VPE for SMP"
1936 depends on SYS_SUPPORTS_MULTITHREADING
1937 select CPU_MIPSR2_IRQ_VI
1938 select CPU_MIPSR2_IRQ_EI
1940 select NR_CPUS_DEFAULT_2
1942 select SYS_SUPPORTS_SCHED_SMT if SMP
1943 select SYS_SUPPORTS_SMP
1945 select MIPS_PERF_SHARED_TC_COUNTERS
1947 This is a kernel model which is known a VSMP but lately has been
1948 marketesed into SMVP.
1949 Virtual SMP uses the processor's VPEs to implement virtual
1950 processors. In currently available configuration of the 34K processor
1951 this allows for a dual processor. Both processors will share the same
1952 primary caches; each will obtain the half of the TLB for it's own
1953 exclusive use. For a layman this model can be described as similar to
1954 what Intel calls Hyperthreading.
1956 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1959 bool "SMTC: Use all TCs on all VPEs for SMP"
1960 depends on CPU_MIPS32_R2
1961 #depends on CPU_MIPS64_R2 # once there is hardware ...
1962 depends on SYS_SUPPORTS_MULTITHREADING
1963 select CPU_MIPSR2_IRQ_VI
1964 select CPU_MIPSR2_IRQ_EI
1966 select NR_CPUS_DEFAULT_8
1968 select SYS_SUPPORTS_SMP
1971 This is a kernel model which is known a SMTC or lately has been
1972 marketesed into SMVP.
1973 is presenting the available TC's of the core as processors to Linux.
1974 On currently available 34K processors this means a Linux system will
1975 see up to 5 processors. The implementation of the SMTC kernel differs
1976 significantly from VSMP and cannot efficiently coexist in the same
1977 kernel binary so the choice between VSMP and SMTC is a compile time
1980 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1988 bool "SMT (multithreading) scheduler support"
1989 depends on SYS_SUPPORTS_SCHED_SMT
1992 SMT scheduler support improves the CPU scheduler's decision making
1993 when dealing with MIPS MT enabled cores at a cost of slightly
1994 increased overhead in some places. If unsure say N here.
1996 config SYS_SUPPORTS_SCHED_SMT
1999 config SYS_SUPPORTS_MULTITHREADING
2002 config MIPS_MT_FPAFF
2003 bool "Dynamic FPU affinity for FP-intensive threads"
2005 depends on MIPS_MT_SMP || MIPS_MT_SMTC
2007 config MIPS_VPE_LOADER
2008 bool "VPE loader support."
2009 depends on SYS_SUPPORTS_MULTITHREADING
2010 select CPU_MIPSR2_IRQ_VI
2011 select CPU_MIPSR2_IRQ_EI
2014 Includes a loader for loading an elf relocatable object
2015 onto another VPE and running it.
2017 config MIPS_MT_SMTC_IM_BACKSTOP
2018 bool "Use per-TC register bits as backstop for inhibited IM bits"
2019 depends on MIPS_MT_SMTC
2022 To support multiple TC microthreads acting as "CPUs" within
2023 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2024 during interrupt handling. To support legacy drivers and interrupt
2025 controller management code, SMTC has a "backstop" to track and
2026 if necessary restore the interrupt mask. This has some performance
2027 impact on interrupt service overhead.
2029 config MIPS_MT_SMTC_IRQAFF
2030 bool "Support IRQ affinity API"
2031 depends on MIPS_MT_SMTC
2034 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2035 for SMTC Linux kernel. Requires platform support, of which
2036 an example can be found in the MIPS kernel i8259 and Malta
2037 platform code. Adds some overhead to interrupt dispatch, and
2038 should be used only if you know what you are doing.
2040 config MIPS_VPE_LOADER_TOM
2041 bool "Load VPE program into memory hidden from linux"
2042 depends on MIPS_VPE_LOADER
2045 The loader can use memory that is present but has been hidden from
2046 Linux using the kernel command line option "mem=xxMB". It's up to
2047 you to ensure the amount you put in the option and the space your
2048 program requires is less or equal to the amount physically present.
2050 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2051 config MIPS_VPE_APSP_API
2052 bool "Enable support for AP/SP API (RTLX)"
2053 depends on MIPS_VPE_LOADER
2057 bool "MIPS CMP framework support"
2058 depends on SYS_SUPPORTS_MIPS_CMP
2060 select SYS_SUPPORTS_SMP
2061 select SYS_SUPPORTS_SCHED_SMT if SMP
2062 select WEAK_ORDERING
2065 This is a placeholder option for the GCMP work. It will need to
2066 be handled differently...
2068 config SB1_PASS_1_WORKAROUNDS
2070 depends on CPU_SB1_PASS_1
2073 config SB1_PASS_2_WORKAROUNDS
2075 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2078 config SB1_PASS_2_1_WORKAROUNDS
2080 depends on CPU_SB1 && CPU_SB1_PASS_2
2083 config 64BIT_PHYS_ADDR
2086 config ARCH_PHYS_ADDR_T_64BIT
2087 def_bool 64BIT_PHYS_ADDR
2089 config CPU_HAS_SMARTMIPS
2090 depends on SYS_SUPPORTS_SMARTMIPS
2091 bool "Support for the SmartMIPS ASE"
2093 SmartMIPS is a extension of the MIPS32 architecture aimed at
2094 increased security at both hardware and software level for
2095 smartcards. Enabling this option will allow proper use of the
2096 SmartMIPS instructions by Linux applications. However a kernel with
2097 this option will not work on a MIPS core without SmartMIPS core. If
2098 you don't know you probably don't have SmartMIPS and should say N
2108 # Vectored interrupt mode is an R2 feature
2110 config CPU_MIPSR2_IRQ_VI
2114 # Extended interrupt mode is an R2 feature
2116 config CPU_MIPSR2_IRQ_EI
2121 depends on !CPU_R3000
2127 config CPU_DADDI_WORKAROUNDS
2130 config CPU_R4000_WORKAROUNDS
2132 select CPU_R4400_WORKAROUNDS
2134 config CPU_R4400_WORKAROUNDS
2138 # - Highmem only makes sense for the 32-bit kernel.
2139 # - The current highmem code will only work properly on physically indexed
2140 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2141 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2142 # moment we protect the user and offer the highmem option only on machines
2143 # where it's known to be safe. This will not offer highmem on a few systems
2144 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2145 # indexed CPUs but we're playing safe.
2146 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2147 # know they might have memory configurations that could make use of highmem
2151 bool "High Memory Support"
2152 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2154 config CPU_SUPPORTS_HIGHMEM
2157 config SYS_SUPPORTS_HIGHMEM
2160 config SYS_SUPPORTS_SMARTMIPS
2163 config ARCH_FLATMEM_ENABLE
2165 depends on !NUMA && !CPU_LOONGSON2
2167 config ARCH_DISCONTIGMEM_ENABLE
2169 default y if SGI_IP27
2171 Say Y to support efficient handling of discontiguous physical memory,
2172 for architectures which are either NUMA (Non-Uniform Memory Access)
2173 or have huge holes in the physical address space for other reasons.
2174 See <file:Documentation/vm/numa> for more.
2176 config ARCH_SPARSEMEM_ENABLE
2178 select SPARSEMEM_STATIC
2182 depends on SYS_SUPPORTS_NUMA
2184 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2185 Access). This option improves performance on systems with more
2186 than two nodes; on two node systems it is generally better to
2187 leave it disabled; on single node systems disable this option
2190 config SYS_SUPPORTS_NUMA
2196 depends on NEED_MULTIPLE_NODES
2198 config HW_PERF_EVENTS
2199 bool "Enable hardware performance counter support for perf events"
2200 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2203 Enable hardware performance counter support for perf events. If
2204 disabled, perf events will use software events only.
2209 bool "Multi-Processing support"
2210 depends on SYS_SUPPORTS_SMP
2212 select USE_GENERIC_SMP_HELPERS
2214 This enables support for systems with more than one CPU. If you have
2215 a system with only one CPU, like most personal computers, say N. If
2216 you have a system with more than one CPU, say Y.
2218 If you say N here, the kernel will run on single and multiprocessor
2219 machines, but will use only one CPU of a multiprocessor machine. If
2220 you say Y here, the kernel will run on many, but not all,
2221 singleprocessor machines. On a singleprocessor machine, the kernel
2222 will run faster if you say N here.
2224 People using multiprocessor machines who say Y here should also say
2225 Y to "Enhanced Real Time Clock Support", below.
2227 See also the SMP-HOWTO available at
2228 <http://www.tldp.org/docs.html#howto>.
2230 If you don't know what to do here, say N.
2235 config SYS_SUPPORTS_MIPS_CMP
2238 config SYS_SUPPORTS_SMP
2241 config NR_CPUS_DEFAULT_1
2244 config NR_CPUS_DEFAULT_2
2247 config NR_CPUS_DEFAULT_4
2250 config NR_CPUS_DEFAULT_8
2253 config NR_CPUS_DEFAULT_16
2256 config NR_CPUS_DEFAULT_32
2259 config NR_CPUS_DEFAULT_64
2263 int "Maximum number of CPUs (2-64)"
2264 range 1 64 if NR_CPUS_DEFAULT_1
2266 default "1" if NR_CPUS_DEFAULT_1
2267 default "2" if NR_CPUS_DEFAULT_2
2268 default "4" if NR_CPUS_DEFAULT_4
2269 default "8" if NR_CPUS_DEFAULT_8
2270 default "16" if NR_CPUS_DEFAULT_16
2271 default "32" if NR_CPUS_DEFAULT_32
2272 default "64" if NR_CPUS_DEFAULT_64
2274 This allows you to specify the maximum number of CPUs which this
2275 kernel will support. The maximum supported value is 32 for 32-bit
2276 kernel and 64 for 64-bit kernels; the minimum value which makes
2277 sense is 1 for Qemu (useful only for kernel debugging purposes)
2278 and 2 for all others.
2280 This is purely to save memory - each supported CPU adds
2281 approximately eight kilobytes to the kernel image. For best
2282 performance should round up your number of processors to the next
2285 config MIPS_PERF_SHARED_TC_COUNTERS
2289 # Timer Interrupt Frequency Configuration
2293 prompt "Timer frequency"
2296 Allows the configuration of the timer frequency.
2299 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2302 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2305 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2308 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2311 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2314 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2317 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2321 config SYS_SUPPORTS_48HZ
2324 config SYS_SUPPORTS_100HZ
2327 config SYS_SUPPORTS_128HZ
2330 config SYS_SUPPORTS_250HZ
2333 config SYS_SUPPORTS_256HZ
2336 config SYS_SUPPORTS_1000HZ
2339 config SYS_SUPPORTS_1024HZ
2342 config SYS_SUPPORTS_ARBIT_HZ
2344 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2345 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2346 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2347 !SYS_SUPPORTS_1024HZ
2352 default 100 if HZ_100
2353 default 128 if HZ_128
2354 default 250 if HZ_250
2355 default 256 if HZ_256
2356 default 1000 if HZ_1000
2357 default 1024 if HZ_1024
2359 source "kernel/Kconfig.preempt"
2362 bool "Kexec system call (EXPERIMENTAL)"
2363 depends on EXPERIMENTAL
2365 kexec is a system call that implements the ability to shutdown your
2366 current kernel, and to start another kernel. It is like a reboot
2367 but it is independent of the system firmware. And like a reboot
2368 you can start any kernel with it, not just Linux.
2370 The name comes from the similarity to the exec system call.
2372 It is an ongoing process to be certain the hardware in a machine
2373 is properly shutdown, so do not be surprised if this code does not
2374 initially work for you. It may help to enable device hotplugging
2375 support. As of this writing the exact hardware interface is
2376 strongly in flux, so no good recommendation can be made.
2379 bool "Kernel crash dumps"
2381 Generate crash dump after being started by kexec.
2382 This should be normally only set in special crash dump kernels
2383 which are loaded in the main kernel with kexec-tools into
2384 a specially reserved region and then later executed after
2385 a crash by kdump/kexec. The crash dump kernel must be compiled
2386 to a memory address not used by the main kernel or firmware using
2389 config PHYSICAL_START
2390 hex "Physical address where the kernel is loaded"
2391 default "0xffffffff84000000" if 64BIT
2392 default "0x84000000" if 32BIT
2393 depends on CRASH_DUMP
2395 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2396 If you plan to use kernel for capturing the crash dump change
2397 this value to start of the reserved region (the "X" value as
2398 specified in the "crashkernel=YM@XM" command line boot parameter
2399 passed to the panic-ed kernel).
2402 bool "Enable seccomp to safely compute untrusted bytecode"
2406 This kernel feature is useful for number crunching applications
2407 that may need to compute untrusted bytecode during their
2408 execution. By using pipes or other transports made available to
2409 the process as file descriptors supporting the read/write
2410 syscalls, it's possible to isolate those applications in
2411 their own address space using seccomp. Once seccomp is
2412 enabled via /proc/<pid>/seccomp, it cannot be disabled
2413 and the task is only allowed to execute a few safe syscalls
2414 defined by each seccomp mode.
2416 If unsure, say Y. Only embedded should say N here.
2421 select OF_EARLY_FLATTREE
2426 config LOCKDEP_SUPPORT
2430 config STACKTRACE_SUPPORT
2434 source "init/Kconfig"
2436 source "kernel/Kconfig.freezer"
2438 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2446 bool "Support for PCI controller"
2447 depends on HW_HAS_PCI
2449 select GENERIC_PCI_IOMAP
2450 select NO_GENERIC_PCI_IOPORT_MAP
2452 Find out whether you have a PCI motherboard. PCI is the name of a
2453 bus system, i.e. the way the CPU talks to the other stuff inside
2454 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2460 source "drivers/pci/Kconfig"
2462 source "drivers/pci/pcie/Kconfig"
2465 # ISA support is now enabled via select. Too many systems still have the one
2466 # or other ISA chip on the board that users don't know about so don't expect
2467 # users to choose the right thing ...
2474 depends on HW_HAS_EISA
2476 select GENERIC_ISA_DMA
2478 The Extended Industry Standard Architecture (EISA) bus was
2479 developed as an open alternative to the IBM MicroChannel bus.
2481 The EISA bus provided some of the features of the IBM MicroChannel
2482 bus while maintaining backward compatibility with cards made for
2483 the older ISA bus. The EISA bus saw limited use between 1988 and
2484 1995 when it was made obsolete by the PCI bus.
2486 Say Y here if you are building a kernel for an EISA-based machine.
2490 source "drivers/eisa/Kconfig"
2493 bool "TURBOchannel support"
2494 depends on MACH_DECSTATION
2496 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2497 processors. TURBOchannel programming specifications are available
2499 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2501 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2502 Linux driver support status is documented at:
2503 <http://www.linux-mips.org/wiki/DECstation>
2513 select MIPS_EXTERNAL_TIMER
2518 source "drivers/pcmcia/Kconfig"
2520 source "drivers/pci/hotplug/Kconfig"
2523 bool "RapidIO support"
2527 If you say Y here, the kernel will include drivers and
2528 infrastructure code to support RapidIO interconnect devices.
2530 source "drivers/rapidio/Kconfig"
2534 menu "Executable file formats"
2536 source "fs/Kconfig.binfmt"
2541 config MIPS32_COMPAT
2542 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2545 Select this option if you want Linux/MIPS 32-bit binary
2546 compatibility. Since all software available for Linux/MIPS is
2547 currently 32-bit you should say Y here.
2551 depends on MIPS32_COMPAT
2552 select ARCH_WANT_OLD_COMPAT_IPC
2555 config SYSVIPC_COMPAT
2557 depends on COMPAT && SYSVIPC
2561 bool "Kernel support for o32 binaries"
2562 depends on MIPS32_COMPAT
2564 Select this option if you want to run o32 binaries. These are pure
2565 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2566 existing binaries are in this format.
2571 bool "Kernel support for n32 binaries"
2572 depends on MIPS32_COMPAT
2574 Select this option if you want to run n32 binaries. These are
2575 64-bit binaries using 32-bit quantities for addressing and certain
2576 data that would normally be 64-bit. They are used in special
2583 default y if MIPS32_O32 || MIPS32_N32
2587 menu "Power management options"
2589 config ARCH_HIBERNATION_POSSIBLE
2591 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2593 config ARCH_SUSPEND_POSSIBLE
2595 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2597 source "kernel/power/Kconfig"
2601 source "arch/mips/kernel/cpufreq/Kconfig"
2603 source "net/Kconfig"
2605 source "drivers/Kconfig"
2607 source "drivers/firmware/Kconfig"
2611 source "arch/mips/Kconfig.debug"
2613 source "security/Kconfig"
2615 source "crypto/Kconfig"
2617 source "lib/Kconfig"