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
955 select ARCH_REQUIRE_GPIOLIB
961 config ARCH_DMA_ADDR_T_64BIT
962 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
967 config DMA_NONCOHERENT
969 select NEED_DMA_MAP_STATE
971 config NEED_DMA_MAP_STATE
974 config SYS_HAS_EARLY_PRINTK
978 bool "Support for hot-pluggable CPUs"
979 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
981 Say Y here to allow turning CPUs off and on. CPUs can be
982 controlled through /sys/devices/system/cpu.
983 (Note: power management support will enable this option
984 automatically on SMP systems. )
985 Say N if you want to disable CPU hotplug.
987 config SYS_SUPPORTS_HOTPLUG_CPU
1002 config MIPS_DISABLE_OBSOLETE_IDE
1014 config GENERIC_ISA_DMA
1016 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1019 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1021 select GENERIC_ISA_DMA
1029 config HOLES_IN_ZONE
1033 # Endianness selection. Sufficiently obscure so many users don't know what to
1034 # answer,so we try hard to limit the available choices. Also the use of a
1035 # choice statement should be more obvious to the user.
1038 prompt "Endianness selection"
1040 Some MIPS machines can be configured for either little or big endian
1041 byte order. These modes require different kernels and a different
1042 Linux distribution. In general there is one preferred byteorder for a
1043 particular system but some systems are just as commonly used in the
1044 one or the other endianness.
1046 config CPU_BIG_ENDIAN
1048 depends on SYS_SUPPORTS_BIG_ENDIAN
1050 config CPU_LITTLE_ENDIAN
1051 bool "Little endian"
1052 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1060 config SYS_SUPPORTS_APM_EMULATION
1063 config SYS_SUPPORTS_BIG_ENDIAN
1066 config SYS_SUPPORTS_LITTLE_ENDIAN
1069 config SYS_SUPPORTS_HUGETLBFS
1071 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1074 config MIPS_HUGE_TLB_SUPPORT
1075 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1101 config MIPS_BOARDS_GEN
1104 config PCI_GT64XXX_PCI0
1107 config NO_EXCEPT_FILL
1112 select SERIAL_RM9000
1118 select DMA_NONCOHERENT
1120 select SWAP_IO_SPACE
1121 select SYS_HAS_CPU_R5500
1122 select SYS_SUPPORTS_32BIT_KERNEL
1123 select SYS_SUPPORTS_64BIT_KERNEL
1124 select SYS_SUPPORTS_BIG_ENDIAN
1131 select DMA_NONCOHERENT
1132 select SYS_HAS_CPU_MIPS32_R2
1133 select SYS_SUPPORTS_32BIT_KERNEL
1134 select SYS_SUPPORTS_LITTLE_ENDIAN
1135 select SYS_SUPPORTS_BIG_ENDIAN
1137 select CPU_MIPSR2_IRQ_VI
1149 select DMA_NONCOHERENT
1151 select SYS_HAS_CPU_MIPS32_R1
1152 select SYS_HAS_EARLY_PRINTK
1153 select SYS_SUPPORTS_32BIT_KERNEL
1156 config SWAP_IO_SPACE
1159 config SERIAL_RM9000
1162 config SGI_HAS_INDYDOG
1174 config SGI_HAS_ZILOG
1177 config SGI_HAS_I8042
1180 config DEFAULT_SGI_PARTITION
1192 config MIPS_L1_CACHE_SHIFT
1194 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1195 default "6" if MIPS_CPU_SCACHE
1196 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1199 config HAVE_STD_PC_SERIAL_PORT
1203 bool "ARC console support"
1204 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1208 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1213 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1222 menu "CPU selection"
1228 config CPU_LOONGSON2E
1230 depends on SYS_HAS_CPU_LOONGSON2E
1231 select CPU_LOONGSON2
1233 The Loongson 2E processor implements the MIPS III instruction set
1234 with many extensions.
1236 It has an internal FPGA northbridge, which is compatible to
1239 config CPU_LOONGSON2F
1241 depends on SYS_HAS_CPU_LOONGSON2F
1242 select CPU_LOONGSON2
1244 select ARCH_REQUIRE_GPIOLIB
1246 The Loongson 2F processor implements the MIPS III instruction set
1247 with many extensions.
1249 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1250 have a similar programming interface with FPGA northbridge used in
1253 config CPU_LOONGSON1B
1255 depends on SYS_HAS_CPU_LOONGSON1B
1256 select CPU_LOONGSON1
1258 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1259 release 2 instruction set.
1261 config CPU_MIPS32_R1
1262 bool "MIPS32 Release 1"
1263 depends on SYS_HAS_CPU_MIPS32_R1
1264 select CPU_HAS_PREFETCH
1265 select CPU_SUPPORTS_32BIT_KERNEL
1266 select CPU_SUPPORTS_HIGHMEM
1268 Choose this option to build a kernel for release 1 or later of the
1269 MIPS32 architecture. Most modern embedded systems with a 32-bit
1270 MIPS processor are based on a MIPS32 processor. If you know the
1271 specific type of processor in your system, choose those that one
1272 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1273 Release 2 of the MIPS32 architecture is available since several
1274 years so chances are you even have a MIPS32 Release 2 processor
1275 in which case you should choose CPU_MIPS32_R2 instead for better
1278 config CPU_MIPS32_R2
1279 bool "MIPS32 Release 2"
1280 depends on SYS_HAS_CPU_MIPS32_R2
1281 select CPU_HAS_PREFETCH
1282 select CPU_SUPPORTS_32BIT_KERNEL
1283 select CPU_SUPPORTS_HIGHMEM
1285 Choose this option to build a kernel for release 2 or later of the
1286 MIPS32 architecture. Most modern embedded systems with a 32-bit
1287 MIPS processor are based on a MIPS32 processor. If you know the
1288 specific type of processor in your system, choose those that one
1289 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1291 config CPU_MIPS64_R1
1292 bool "MIPS64 Release 1"
1293 depends on SYS_HAS_CPU_MIPS64_R1
1294 select CPU_HAS_PREFETCH
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296 select CPU_SUPPORTS_64BIT_KERNEL
1297 select CPU_SUPPORTS_HIGHMEM
1298 select CPU_SUPPORTS_HUGEPAGES
1300 Choose this option to build a kernel for release 1 or later of the
1301 MIPS64 architecture. Many modern embedded systems with a 64-bit
1302 MIPS processor are based on a MIPS64 processor. If you know the
1303 specific type of processor in your system, choose those that one
1304 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1305 Release 2 of the MIPS64 architecture is available since several
1306 years so chances are you even have a MIPS64 Release 2 processor
1307 in which case you should choose CPU_MIPS64_R2 instead for better
1310 config CPU_MIPS64_R2
1311 bool "MIPS64 Release 2"
1312 depends on SYS_HAS_CPU_MIPS64_R2
1313 select CPU_HAS_PREFETCH
1314 select CPU_SUPPORTS_32BIT_KERNEL
1315 select CPU_SUPPORTS_64BIT_KERNEL
1316 select CPU_SUPPORTS_HIGHMEM
1317 select CPU_SUPPORTS_HUGEPAGES
1319 Choose this option to build a kernel for release 2 or later of the
1320 MIPS64 architecture. Many modern embedded systems with a 64-bit
1321 MIPS processor are based on a MIPS64 processor. If you know the
1322 specific type of processor in your system, choose those that one
1323 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1327 depends on SYS_HAS_CPU_R3000
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 select CPU_SUPPORTS_HIGHMEM
1332 Please make sure to pick the right CPU type. Linux/MIPS is not
1333 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1334 *not* work on R4000 machines and vice versa. However, since most
1335 of the supported machines have an R4000 (or similar) CPU, R4x00
1336 might be a safe bet. If the resulting kernel does not work,
1337 try to recompile with R3000.
1341 depends on SYS_HAS_CPU_TX39XX
1342 select CPU_SUPPORTS_32BIT_KERNEL
1346 depends on SYS_HAS_CPU_VR41XX
1347 select CPU_SUPPORTS_32BIT_KERNEL
1348 select CPU_SUPPORTS_64BIT_KERNEL
1350 The options selects support for the NEC VR4100 series of processors.
1351 Only choose this option if you have one of these processors as a
1352 kernel built with this option will not run on any other type of
1353 processor or vice versa.
1357 depends on SYS_HAS_CPU_R4300
1358 select CPU_SUPPORTS_32BIT_KERNEL
1359 select CPU_SUPPORTS_64BIT_KERNEL
1361 MIPS Technologies R4300-series processors.
1365 depends on SYS_HAS_CPU_R4X00
1366 select CPU_SUPPORTS_32BIT_KERNEL
1367 select CPU_SUPPORTS_64BIT_KERNEL
1368 select CPU_SUPPORTS_HUGEPAGES
1370 MIPS Technologies R4000-series processors other than 4300, including
1371 the R4000, R4400, R4600, and 4700.
1375 depends on SYS_HAS_CPU_TX49XX
1376 select CPU_HAS_PREFETCH
1377 select CPU_SUPPORTS_32BIT_KERNEL
1378 select CPU_SUPPORTS_64BIT_KERNEL
1379 select CPU_SUPPORTS_HUGEPAGES
1383 depends on SYS_HAS_CPU_R5000
1384 select CPU_SUPPORTS_32BIT_KERNEL
1385 select CPU_SUPPORTS_64BIT_KERNEL
1386 select CPU_SUPPORTS_HUGEPAGES
1388 MIPS Technologies R5000-series processors other than the Nevada.
1392 depends on SYS_HAS_CPU_R5432
1393 select CPU_SUPPORTS_32BIT_KERNEL
1394 select CPU_SUPPORTS_64BIT_KERNEL
1395 select CPU_SUPPORTS_HUGEPAGES
1399 depends on SYS_HAS_CPU_R5500
1400 select CPU_SUPPORTS_32BIT_KERNEL
1401 select CPU_SUPPORTS_64BIT_KERNEL
1402 select CPU_SUPPORTS_HUGEPAGES
1404 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1409 depends on EXPERIMENTAL
1410 depends on SYS_HAS_CPU_R6000
1411 select CPU_SUPPORTS_32BIT_KERNEL
1413 MIPS Technologies R6000 and R6000A series processors. Note these
1414 processors are extremely rare and the support for them is incomplete.
1418 depends on SYS_HAS_CPU_NEVADA
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_64BIT_KERNEL
1421 select CPU_SUPPORTS_HUGEPAGES
1423 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1427 depends on EXPERIMENTAL
1428 depends on SYS_HAS_CPU_R8000
1429 select CPU_HAS_PREFETCH
1430 select CPU_SUPPORTS_64BIT_KERNEL
1432 MIPS Technologies R8000 processors. Note these processors are
1433 uncommon and the support for them is incomplete.
1437 depends on SYS_HAS_CPU_R10000
1438 select CPU_HAS_PREFETCH
1439 select CPU_SUPPORTS_32BIT_KERNEL
1440 select CPU_SUPPORTS_64BIT_KERNEL
1441 select CPU_SUPPORTS_HIGHMEM
1442 select CPU_SUPPORTS_HUGEPAGES
1444 MIPS Technologies R10000-series processors.
1448 depends on SYS_HAS_CPU_RM7000
1449 select CPU_HAS_PREFETCH
1450 select CPU_SUPPORTS_32BIT_KERNEL
1451 select CPU_SUPPORTS_64BIT_KERNEL
1452 select CPU_SUPPORTS_HIGHMEM
1453 select CPU_SUPPORTS_HUGEPAGES
1457 depends on SYS_HAS_CPU_RM9000
1458 select CPU_HAS_PREFETCH
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1461 select CPU_SUPPORTS_HIGHMEM
1462 select CPU_SUPPORTS_HUGEPAGES
1463 select WEAK_ORDERING
1467 depends on SYS_HAS_CPU_SB1
1468 select CPU_SUPPORTS_32BIT_KERNEL
1469 select CPU_SUPPORTS_64BIT_KERNEL
1470 select CPU_SUPPORTS_HIGHMEM
1471 select CPU_SUPPORTS_HUGEPAGES
1472 select WEAK_ORDERING
1474 config CPU_CAVIUM_OCTEON
1475 bool "Cavium Octeon processor"
1476 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1477 select ARCH_SPARSEMEM_ENABLE
1478 select CPU_HAS_PREFETCH
1479 select CPU_SUPPORTS_64BIT_KERNEL
1480 select SYS_SUPPORTS_SMP
1481 select NR_CPUS_DEFAULT_16
1482 select WEAK_ORDERING
1483 select CPU_SUPPORTS_HIGHMEM
1484 select CPU_SUPPORTS_HUGEPAGES
1488 The Cavium Octeon processor is a highly integrated chip containing
1489 many ethernet hardware widgets for networking tasks. The processor
1490 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1491 Full details can be found at http://www.caviumnetworks.com.
1493 config CPU_BMIPS3300
1495 depends on SYS_HAS_CPU_BMIPS3300
1498 Broadcom BMIPS3300 processors.
1500 config CPU_BMIPS4350
1502 depends on SYS_HAS_CPU_BMIPS4350
1504 select SYS_SUPPORTS_SMP
1505 select SYS_SUPPORTS_HOTPLUG_CPU
1507 Broadcom BMIPS4350 ("VIPER") processors.
1509 config CPU_BMIPS4380
1511 depends on SYS_HAS_CPU_BMIPS4380
1513 select SYS_SUPPORTS_SMP
1514 select SYS_SUPPORTS_HOTPLUG_CPU
1516 Broadcom BMIPS4380 processors.
1518 config CPU_BMIPS5000
1520 depends on SYS_HAS_CPU_BMIPS5000
1522 select CPU_SUPPORTS_HIGHMEM
1523 select MIPS_CPU_SCACHE
1524 select SYS_SUPPORTS_SMP
1525 select SYS_SUPPORTS_HOTPLUG_CPU
1527 Broadcom BMIPS5000 processors.
1530 bool "Netlogic XLR SoC"
1531 depends on SYS_HAS_CPU_XLR
1532 select CPU_SUPPORTS_32BIT_KERNEL
1533 select CPU_SUPPORTS_64BIT_KERNEL
1534 select CPU_SUPPORTS_HIGHMEM
1535 select CPU_SUPPORTS_HUGEPAGES
1536 select WEAK_ORDERING
1537 select WEAK_REORDERING_BEYOND_LLSC
1539 Netlogic Microsystems XLR/XLS processors.
1542 bool "Netlogic XLP SoC"
1543 depends on SYS_HAS_CPU_XLP
1544 select CPU_SUPPORTS_32BIT_KERNEL
1545 select CPU_SUPPORTS_64BIT_KERNEL
1546 select CPU_SUPPORTS_HIGHMEM
1548 select WEAK_ORDERING
1549 select WEAK_REORDERING_BEYOND_LLSC
1550 select CPU_HAS_PREFETCH
1552 Netlogic Microsystems XLP processors.
1556 config CPU_NOP_WORKAROUNDS
1559 config CPU_JUMP_WORKAROUNDS
1562 config CPU_LOONGSON2F_WORKAROUNDS
1563 bool "Loongson 2F Workarounds"
1565 select CPU_NOP_WORKAROUNDS
1566 select CPU_JUMP_WORKAROUNDS
1568 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1569 require workarounds. Without workarounds the system may hang
1570 unexpectedly. For more information please refer to the gas
1571 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1573 Loongson 2F03 and later have fixed these issues and no workarounds
1574 are needed. The workarounds have no significant side effect on them
1575 but may decrease the performance of the system so this option should
1576 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1579 If unsure, please say Y.
1580 endif # CPU_LOONGSON2F
1582 config SYS_SUPPORTS_ZBOOT
1584 select HAVE_KERNEL_GZIP
1585 select HAVE_KERNEL_BZIP2
1586 select HAVE_KERNEL_LZMA
1587 select HAVE_KERNEL_LZO
1589 config SYS_SUPPORTS_ZBOOT_UART16550
1591 select SYS_SUPPORTS_ZBOOT
1593 config CPU_LOONGSON2
1595 select CPU_SUPPORTS_32BIT_KERNEL
1596 select CPU_SUPPORTS_64BIT_KERNEL
1597 select CPU_SUPPORTS_HIGHMEM
1598 select CPU_SUPPORTS_HUGEPAGES
1600 config CPU_LOONGSON1
1604 select CPU_HAS_PREFETCH
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select CPU_SUPPORTS_HIGHMEM
1611 select CPU_SUPPORTS_32BIT_KERNEL
1612 select DMA_NONCOHERENT
1614 select SWAP_IO_SPACE
1615 select WEAK_ORDERING
1617 config SYS_HAS_CPU_LOONGSON2E
1620 config SYS_HAS_CPU_LOONGSON2F
1622 select CPU_SUPPORTS_CPUFREQ
1623 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1624 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1626 config SYS_HAS_CPU_LOONGSON1B
1629 config SYS_HAS_CPU_MIPS32_R1
1632 config SYS_HAS_CPU_MIPS32_R2
1635 config SYS_HAS_CPU_MIPS64_R1
1638 config SYS_HAS_CPU_MIPS64_R2
1641 config SYS_HAS_CPU_R3000
1644 config SYS_HAS_CPU_TX39XX
1647 config SYS_HAS_CPU_VR41XX
1650 config SYS_HAS_CPU_R4300
1653 config SYS_HAS_CPU_R4X00
1656 config SYS_HAS_CPU_TX49XX
1659 config SYS_HAS_CPU_R5000
1662 config SYS_HAS_CPU_R5432
1665 config SYS_HAS_CPU_R5500
1668 config SYS_HAS_CPU_R6000
1671 config SYS_HAS_CPU_NEVADA
1674 config SYS_HAS_CPU_R8000
1677 config SYS_HAS_CPU_R10000
1680 config SYS_HAS_CPU_RM7000
1683 config SYS_HAS_CPU_RM9000
1686 config SYS_HAS_CPU_SB1
1689 config SYS_HAS_CPU_CAVIUM_OCTEON
1692 config SYS_HAS_CPU_BMIPS3300
1695 config SYS_HAS_CPU_BMIPS4350
1698 config SYS_HAS_CPU_BMIPS4380
1701 config SYS_HAS_CPU_BMIPS5000
1704 config SYS_HAS_CPU_XLR
1707 config SYS_HAS_CPU_XLP
1711 # CPU may reorder R->R, R->W, W->R, W->W
1712 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1714 config WEAK_ORDERING
1718 # CPU may reorder reads and writes beyond LL/SC
1719 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1721 config WEAK_REORDERING_BEYOND_LLSC
1726 # These two indicate any level of the MIPS32 and MIPS64 architecture
1730 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1734 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1737 # These two indicate the revision of the architecture, either Release 1 or Release 2
1741 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1745 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1747 config SYS_SUPPORTS_32BIT_KERNEL
1749 config SYS_SUPPORTS_64BIT_KERNEL
1751 config CPU_SUPPORTS_32BIT_KERNEL
1753 config CPU_SUPPORTS_64BIT_KERNEL
1755 config CPU_SUPPORTS_CPUFREQ
1757 config CPU_SUPPORTS_ADDRWINCFG
1759 config CPU_SUPPORTS_HUGEPAGES
1761 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1763 config MIPS_PGD_C0_CONTEXT
1765 default y if 64BIT && CPU_MIPSR2
1768 # Set to y for ptrace access to watch registers.
1770 config HARDWARE_WATCHPOINTS
1772 default y if CPU_MIPSR1 || CPU_MIPSR2
1777 prompt "Kernel code model"
1779 You should only select this option if you have a workload that
1780 actually benefits from 64-bit processing or if your machine has
1781 large memory. You will only be presented a single option in this
1782 menu if your system does not support both 32-bit and 64-bit kernels.
1785 bool "32-bit kernel"
1786 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1789 Select this option if you want to build a 32-bit kernel.
1791 bool "64-bit kernel"
1792 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1793 select HAVE_SYSCALL_WRAPPERS
1795 Select this option if you want to build a 64-bit kernel.
1800 prompt "Kernel page size"
1801 default PAGE_SIZE_4KB
1803 config PAGE_SIZE_4KB
1805 depends on !CPU_LOONGSON2
1807 This option select the standard 4kB Linux page size. On some
1808 R3000-family processors this is the only available page size. Using
1809 4kB page size will minimize memory consumption and is therefore
1810 recommended for low memory systems.
1812 config PAGE_SIZE_8KB
1814 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1816 Using 8kB page size will result in higher performance kernel at
1817 the price of higher memory consumption. This option is available
1818 only on R8000 and cnMIPS processors. Note that you will need a
1819 suitable Linux distribution to support this.
1821 config PAGE_SIZE_16KB
1823 depends on !CPU_R3000 && !CPU_TX39XX
1825 Using 16kB page size will result in higher performance kernel at
1826 the price of higher memory consumption. This option is available on
1827 all non-R3000 family processors. Note that you will need a suitable
1828 Linux distribution to support this.
1830 config PAGE_SIZE_32KB
1832 depends on CPU_CAVIUM_OCTEON
1834 Using 32kB page size will result in higher performance kernel at
1835 the price of higher memory consumption. This option is available
1836 only on cnMIPS cores. Note that you will need a suitable Linux
1837 distribution to support this.
1839 config PAGE_SIZE_64KB
1841 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1843 Using 64kB page size will result in higher performance kernel at
1844 the price of higher memory consumption. This option is available on
1845 all non-R3000 family processor. Not that at the time of this
1846 writing this option is still high experimental.
1850 config FORCE_MAX_ZONEORDER
1851 int "Maximum zone order"
1852 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1853 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1854 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1855 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1856 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1857 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1861 The kernel memory allocator divides physically contiguous memory
1862 blocks into "zones", where each zone is a power of two number of
1863 pages. This option selects the largest power of two that the kernel
1864 keeps in the memory allocator. If you need to allocate very large
1865 blocks of physically contiguous memory, then you may need to
1866 increase this value.
1868 This config option is actually maximum order plus one. For example,
1869 a value of 11 means that the largest free memory block is 2^10 pages.
1871 The page size is not necessarily 4KB. Keep this in mind
1872 when choosing a value for this option.
1877 config IP22_CPU_SCACHE
1882 # Support for a MIPS32 / MIPS64 style S-caches
1884 config MIPS_CPU_SCACHE
1888 config R5000_CPU_SCACHE
1892 config RM7000_CPU_SCACHE
1896 config SIBYTE_DMA_PAGEOPS
1897 bool "Use DMA to clear/copy pages"
1900 Instead of using the CPU to zero and copy pages, use a Data Mover
1901 channel. These DMA channels are otherwise unused by the standard
1902 SiByte Linux port. Seems to give a small performance benefit.
1904 config CPU_HAS_PREFETCH
1907 config CPU_GENERIC_DUMP_TLB
1909 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1913 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1915 config CPU_R4K_CACHE_TLB
1917 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1920 prompt "MIPS MT options"
1922 config MIPS_MT_DISABLED
1923 bool "Disable multithreading support."
1925 Use this option if your workload can't take advantage of
1926 MIPS hardware multithreading support. On systems that don't have
1927 the option of an MT-enabled processor this option will be the only
1928 option in this menu.
1931 bool "Use 1 TC on each available VPE for SMP"
1932 depends on SYS_SUPPORTS_MULTITHREADING
1933 select CPU_MIPSR2_IRQ_VI
1934 select CPU_MIPSR2_IRQ_EI
1936 select NR_CPUS_DEFAULT_2
1938 select SYS_SUPPORTS_SCHED_SMT if SMP
1939 select SYS_SUPPORTS_SMP
1941 select MIPS_PERF_SHARED_TC_COUNTERS
1943 This is a kernel model which is known a VSMP but lately has been
1944 marketesed into SMVP.
1945 Virtual SMP uses the processor's VPEs to implement virtual
1946 processors. In currently available configuration of the 34K processor
1947 this allows for a dual processor. Both processors will share the same
1948 primary caches; each will obtain the half of the TLB for it's own
1949 exclusive use. For a layman this model can be described as similar to
1950 what Intel calls Hyperthreading.
1952 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1955 bool "SMTC: Use all TCs on all VPEs for SMP"
1956 depends on CPU_MIPS32_R2
1957 #depends on CPU_MIPS64_R2 # once there is hardware ...
1958 depends on SYS_SUPPORTS_MULTITHREADING
1959 select CPU_MIPSR2_IRQ_VI
1960 select CPU_MIPSR2_IRQ_EI
1962 select NR_CPUS_DEFAULT_8
1964 select SYS_SUPPORTS_SMP
1967 This is a kernel model which is known a SMTC or lately has been
1968 marketesed into SMVP.
1969 is presenting the available TC's of the core as processors to Linux.
1970 On currently available 34K processors this means a Linux system will
1971 see up to 5 processors. The implementation of the SMTC kernel differs
1972 significantly from VSMP and cannot efficiently coexist in the same
1973 kernel binary so the choice between VSMP and SMTC is a compile time
1976 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1984 bool "SMT (multithreading) scheduler support"
1985 depends on SYS_SUPPORTS_SCHED_SMT
1988 SMT scheduler support improves the CPU scheduler's decision making
1989 when dealing with MIPS MT enabled cores at a cost of slightly
1990 increased overhead in some places. If unsure say N here.
1992 config SYS_SUPPORTS_SCHED_SMT
1995 config SYS_SUPPORTS_MULTITHREADING
1998 config MIPS_MT_FPAFF
1999 bool "Dynamic FPU affinity for FP-intensive threads"
2001 depends on MIPS_MT_SMP || MIPS_MT_SMTC
2003 config MIPS_VPE_LOADER
2004 bool "VPE loader support."
2005 depends on SYS_SUPPORTS_MULTITHREADING
2006 select CPU_MIPSR2_IRQ_VI
2007 select CPU_MIPSR2_IRQ_EI
2010 Includes a loader for loading an elf relocatable object
2011 onto another VPE and running it.
2013 config MIPS_MT_SMTC_IM_BACKSTOP
2014 bool "Use per-TC register bits as backstop for inhibited IM bits"
2015 depends on MIPS_MT_SMTC
2018 To support multiple TC microthreads acting as "CPUs" within
2019 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2020 during interrupt handling. To support legacy drivers and interrupt
2021 controller management code, SMTC has a "backstop" to track and
2022 if necessary restore the interrupt mask. This has some performance
2023 impact on interrupt service overhead.
2025 config MIPS_MT_SMTC_IRQAFF
2026 bool "Support IRQ affinity API"
2027 depends on MIPS_MT_SMTC
2030 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2031 for SMTC Linux kernel. Requires platform support, of which
2032 an example can be found in the MIPS kernel i8259 and Malta
2033 platform code. Adds some overhead to interrupt dispatch, and
2034 should be used only if you know what you are doing.
2036 config MIPS_VPE_LOADER_TOM
2037 bool "Load VPE program into memory hidden from linux"
2038 depends on MIPS_VPE_LOADER
2041 The loader can use memory that is present but has been hidden from
2042 Linux using the kernel command line option "mem=xxMB". It's up to
2043 you to ensure the amount you put in the option and the space your
2044 program requires is less or equal to the amount physically present.
2046 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2047 config MIPS_VPE_APSP_API
2048 bool "Enable support for AP/SP API (RTLX)"
2049 depends on MIPS_VPE_LOADER
2053 bool "MIPS CMP framework support"
2054 depends on SYS_SUPPORTS_MIPS_CMP
2056 select SYS_SUPPORTS_SMP
2057 select SYS_SUPPORTS_SCHED_SMT if SMP
2058 select WEAK_ORDERING
2061 This is a placeholder option for the GCMP work. It will need to
2062 be handled differently...
2064 config SB1_PASS_1_WORKAROUNDS
2066 depends on CPU_SB1_PASS_1
2069 config SB1_PASS_2_WORKAROUNDS
2071 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2074 config SB1_PASS_2_1_WORKAROUNDS
2076 depends on CPU_SB1 && CPU_SB1_PASS_2
2079 config 64BIT_PHYS_ADDR
2082 config ARCH_PHYS_ADDR_T_64BIT
2083 def_bool 64BIT_PHYS_ADDR
2085 config CPU_HAS_SMARTMIPS
2086 depends on SYS_SUPPORTS_SMARTMIPS
2087 bool "Support for the SmartMIPS ASE"
2089 SmartMIPS is a extension of the MIPS32 architecture aimed at
2090 increased security at both hardware and software level for
2091 smartcards. Enabling this option will allow proper use of the
2092 SmartMIPS instructions by Linux applications. However a kernel with
2093 this option will not work on a MIPS core without SmartMIPS core. If
2094 you don't know you probably don't have SmartMIPS and should say N
2104 # Vectored interrupt mode is an R2 feature
2106 config CPU_MIPSR2_IRQ_VI
2110 # Extended interrupt mode is an R2 feature
2112 config CPU_MIPSR2_IRQ_EI
2117 depends on !CPU_R3000
2123 config CPU_DADDI_WORKAROUNDS
2126 config CPU_R4000_WORKAROUNDS
2128 select CPU_R4400_WORKAROUNDS
2130 config CPU_R4400_WORKAROUNDS
2134 # - Highmem only makes sense for the 32-bit kernel.
2135 # - The current highmem code will only work properly on physically indexed
2136 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2137 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2138 # moment we protect the user and offer the highmem option only on machines
2139 # where it's known to be safe. This will not offer highmem on a few systems
2140 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2141 # indexed CPUs but we're playing safe.
2142 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2143 # know they might have memory configurations that could make use of highmem
2147 bool "High Memory Support"
2148 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2150 config CPU_SUPPORTS_HIGHMEM
2153 config SYS_SUPPORTS_HIGHMEM
2156 config SYS_SUPPORTS_SMARTMIPS
2159 config ARCH_FLATMEM_ENABLE
2161 depends on !NUMA && !CPU_LOONGSON2
2163 config ARCH_DISCONTIGMEM_ENABLE
2165 default y if SGI_IP27
2167 Say Y to support efficient handling of discontiguous physical memory,
2168 for architectures which are either NUMA (Non-Uniform Memory Access)
2169 or have huge holes in the physical address space for other reasons.
2170 See <file:Documentation/vm/numa> for more.
2172 config ARCH_SPARSEMEM_ENABLE
2174 select SPARSEMEM_STATIC
2178 depends on SYS_SUPPORTS_NUMA
2180 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2181 Access). This option improves performance on systems with more
2182 than two nodes; on two node systems it is generally better to
2183 leave it disabled; on single node systems disable this option
2186 config SYS_SUPPORTS_NUMA
2192 depends on NEED_MULTIPLE_NODES
2194 config HW_PERF_EVENTS
2195 bool "Enable hardware performance counter support for perf events"
2196 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2199 Enable hardware performance counter support for perf events. If
2200 disabled, perf events will use software events only.
2205 bool "Multi-Processing support"
2206 depends on SYS_SUPPORTS_SMP
2208 select USE_GENERIC_SMP_HELPERS
2210 This enables support for systems with more than one CPU. If you have
2211 a system with only one CPU, like most personal computers, say N. If
2212 you have a system with more than one CPU, say Y.
2214 If you say N here, the kernel will run on single and multiprocessor
2215 machines, but will use only one CPU of a multiprocessor machine. If
2216 you say Y here, the kernel will run on many, but not all,
2217 singleprocessor machines. On a singleprocessor machine, the kernel
2218 will run faster if you say N here.
2220 People using multiprocessor machines who say Y here should also say
2221 Y to "Enhanced Real Time Clock Support", below.
2223 See also the SMP-HOWTO available at
2224 <http://www.tldp.org/docs.html#howto>.
2226 If you don't know what to do here, say N.
2231 config SYS_SUPPORTS_MIPS_CMP
2234 config SYS_SUPPORTS_SMP
2237 config NR_CPUS_DEFAULT_1
2240 config NR_CPUS_DEFAULT_2
2243 config NR_CPUS_DEFAULT_4
2246 config NR_CPUS_DEFAULT_8
2249 config NR_CPUS_DEFAULT_16
2252 config NR_CPUS_DEFAULT_32
2255 config NR_CPUS_DEFAULT_64
2259 int "Maximum number of CPUs (2-64)"
2260 range 1 64 if NR_CPUS_DEFAULT_1
2262 default "1" if NR_CPUS_DEFAULT_1
2263 default "2" if NR_CPUS_DEFAULT_2
2264 default "4" if NR_CPUS_DEFAULT_4
2265 default "8" if NR_CPUS_DEFAULT_8
2266 default "16" if NR_CPUS_DEFAULT_16
2267 default "32" if NR_CPUS_DEFAULT_32
2268 default "64" if NR_CPUS_DEFAULT_64
2270 This allows you to specify the maximum number of CPUs which this
2271 kernel will support. The maximum supported value is 32 for 32-bit
2272 kernel and 64 for 64-bit kernels; the minimum value which makes
2273 sense is 1 for Qemu (useful only for kernel debugging purposes)
2274 and 2 for all others.
2276 This is purely to save memory - each supported CPU adds
2277 approximately eight kilobytes to the kernel image. For best
2278 performance should round up your number of processors to the next
2281 config MIPS_PERF_SHARED_TC_COUNTERS
2285 # Timer Interrupt Frequency Configuration
2289 prompt "Timer frequency"
2292 Allows the configuration of the timer frequency.
2295 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2298 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2301 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2304 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2307 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2310 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2313 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2317 config SYS_SUPPORTS_48HZ
2320 config SYS_SUPPORTS_100HZ
2323 config SYS_SUPPORTS_128HZ
2326 config SYS_SUPPORTS_250HZ
2329 config SYS_SUPPORTS_256HZ
2332 config SYS_SUPPORTS_1000HZ
2335 config SYS_SUPPORTS_1024HZ
2338 config SYS_SUPPORTS_ARBIT_HZ
2340 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2341 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2342 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2343 !SYS_SUPPORTS_1024HZ
2348 default 100 if HZ_100
2349 default 128 if HZ_128
2350 default 250 if HZ_250
2351 default 256 if HZ_256
2352 default 1000 if HZ_1000
2353 default 1024 if HZ_1024
2355 source "kernel/Kconfig.preempt"
2358 bool "Kexec system call (EXPERIMENTAL)"
2359 depends on EXPERIMENTAL
2361 kexec is a system call that implements the ability to shutdown your
2362 current kernel, and to start another kernel. It is like a reboot
2363 but it is independent of the system firmware. And like a reboot
2364 you can start any kernel with it, not just Linux.
2366 The name comes from the similarity to the exec system call.
2368 It is an ongoing process to be certain the hardware in a machine
2369 is properly shutdown, so do not be surprised if this code does not
2370 initially work for you. It may help to enable device hotplugging
2371 support. As of this writing the exact hardware interface is
2372 strongly in flux, so no good recommendation can be made.
2375 bool "Kernel crash dumps"
2377 Generate crash dump after being started by kexec.
2378 This should be normally only set in special crash dump kernels
2379 which are loaded in the main kernel with kexec-tools into
2380 a specially reserved region and then later executed after
2381 a crash by kdump/kexec. The crash dump kernel must be compiled
2382 to a memory address not used by the main kernel or firmware using
2385 config PHYSICAL_START
2386 hex "Physical address where the kernel is loaded"
2387 default "0xffffffff84000000" if 64BIT
2388 default "0x84000000" if 32BIT
2389 depends on CRASH_DUMP
2391 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2392 If you plan to use kernel for capturing the crash dump change
2393 this value to start of the reserved region (the "X" value as
2394 specified in the "crashkernel=YM@XM" command line boot parameter
2395 passed to the panic-ed kernel).
2398 bool "Enable seccomp to safely compute untrusted bytecode"
2402 This kernel feature is useful for number crunching applications
2403 that may need to compute untrusted bytecode during their
2404 execution. By using pipes or other transports made available to
2405 the process as file descriptors supporting the read/write
2406 syscalls, it's possible to isolate those applications in
2407 their own address space using seccomp. Once seccomp is
2408 enabled via /proc/<pid>/seccomp, it cannot be disabled
2409 and the task is only allowed to execute a few safe syscalls
2410 defined by each seccomp mode.
2412 If unsure, say Y. Only embedded should say N here.
2417 select OF_EARLY_FLATTREE
2422 config LOCKDEP_SUPPORT
2426 config STACKTRACE_SUPPORT
2430 source "init/Kconfig"
2432 source "kernel/Kconfig.freezer"
2434 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2442 bool "Support for PCI controller"
2443 depends on HW_HAS_PCI
2445 select GENERIC_PCI_IOMAP
2446 select NO_GENERIC_PCI_IOPORT_MAP
2448 Find out whether you have a PCI motherboard. PCI is the name of a
2449 bus system, i.e. the way the CPU talks to the other stuff inside
2450 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2456 source "drivers/pci/Kconfig"
2458 source "drivers/pci/pcie/Kconfig"
2461 # ISA support is now enabled via select. Too many systems still have the one
2462 # or other ISA chip on the board that users don't know about so don't expect
2463 # users to choose the right thing ...
2470 depends on HW_HAS_EISA
2472 select GENERIC_ISA_DMA
2474 The Extended Industry Standard Architecture (EISA) bus was
2475 developed as an open alternative to the IBM MicroChannel bus.
2477 The EISA bus provided some of the features of the IBM MicroChannel
2478 bus while maintaining backward compatibility with cards made for
2479 the older ISA bus. The EISA bus saw limited use between 1988 and
2480 1995 when it was made obsolete by the PCI bus.
2482 Say Y here if you are building a kernel for an EISA-based machine.
2486 source "drivers/eisa/Kconfig"
2489 bool "TURBOchannel support"
2490 depends on MACH_DECSTATION
2492 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2493 processors. TURBOchannel programming specifications are available
2495 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2497 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2498 Linux driver support status is documented at:
2499 <http://www.linux-mips.org/wiki/DECstation>
2509 select MIPS_EXTERNAL_TIMER
2514 source "drivers/pcmcia/Kconfig"
2516 source "drivers/pci/hotplug/Kconfig"
2519 bool "RapidIO support"
2523 If you say Y here, the kernel will include drivers and
2524 infrastructure code to support RapidIO interconnect devices.
2526 source "drivers/rapidio/Kconfig"
2530 menu "Executable file formats"
2532 source "fs/Kconfig.binfmt"
2537 config MIPS32_COMPAT
2538 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2541 Select this option if you want Linux/MIPS 32-bit binary
2542 compatibility. Since all software available for Linux/MIPS is
2543 currently 32-bit you should say Y here.
2547 depends on MIPS32_COMPAT
2548 select ARCH_WANT_OLD_COMPAT_IPC
2551 config SYSVIPC_COMPAT
2553 depends on COMPAT && SYSVIPC
2557 bool "Kernel support for o32 binaries"
2558 depends on MIPS32_COMPAT
2560 Select this option if you want to run o32 binaries. These are pure
2561 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2562 existing binaries are in this format.
2567 bool "Kernel support for n32 binaries"
2568 depends on MIPS32_COMPAT
2570 Select this option if you want to run n32 binaries. These are
2571 64-bit binaries using 32-bit quantities for addressing and certain
2572 data that would normally be 64-bit. They are used in special
2579 default y if MIPS32_O32 || MIPS32_N32
2583 menu "Power management options"
2585 config ARCH_HIBERNATION_POSSIBLE
2587 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2589 config ARCH_SUSPEND_POSSIBLE
2591 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2593 source "kernel/power/Kconfig"
2597 source "arch/mips/kernel/cpufreq/Kconfig"
2599 source "net/Kconfig"
2601 source "drivers/Kconfig"
2603 source "drivers/firmware/Kconfig"
2607 source "arch/mips/Kconfig.debug"
2609 source "security/Kconfig"
2611 source "crypto/Kconfig"
2613 source "lib/Kconfig"