4 select HAVE_GENERIC_DMA_COHERENT
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
42 select MODULES_USE_ELF_REL if MODULES
43 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 select CLONE_BACKWARDS
46 menu "Machine selection"
56 bool "Alchemy processor based machines"
57 select 64BIT_PHYS_ADDR
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_APM_EMULATION
65 select ARCH_WANT_OPTIONAL_GPIOLIB
66 select SYS_SUPPORTS_ZBOOT
67 select USB_ARCH_HAS_OHCI
68 select USB_ARCH_HAS_EHCI
71 bool "Texas Instruments AR7"
73 select DMA_NONCOHERENT
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
83 select SYS_SUPPORTS_ZBOOT_UART16550
84 select ARCH_REQUIRE_GPIOLIB
88 Support for the Texas Instruments AR7 System-on-a-Chip
89 family: TNETD7100, 7200 and 7300.
92 bool "Atheros AR71XX/AR724X/AR913X based boards"
93 select ARCH_REQUIRE_GPIOLIB
97 select DMA_NONCOHERENT
101 select SYS_HAS_CPU_MIPS32_R2
102 select SYS_HAS_EARLY_PRINTK
103 select SYS_SUPPORTS_32BIT_KERNEL
104 select SYS_SUPPORTS_BIG_ENDIAN
106 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
109 bool "Broadcom BCM47XX based boards"
110 select ARCH_WANT_OPTIONAL_GPIOLIB
114 select DMA_NONCOHERENT
118 select NO_EXCEPT_FILL
119 select SYS_SUPPORTS_32BIT_KERNEL
120 select SYS_SUPPORTS_LITTLE_ENDIAN
121 select SYS_HAS_EARLY_PRINTK
123 Support for BCM47XX based boards
126 bool "Broadcom BCM63XX based boards"
129 select DMA_NONCOHERENT
131 select SYS_HAS_CPU_MIPS32_R1
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_BIG_ENDIAN
134 select SYS_HAS_EARLY_PRINTK
136 select ARCH_REQUIRE_GPIOLIB
139 Support for BCM63XX based boards
146 select DMA_NONCOHERENT
152 select PCI_GT64XXX_PCI0
154 select SYS_HAS_CPU_NEVADA
155 select SYS_HAS_EARLY_PRINTK
156 select SYS_SUPPORTS_32BIT_KERNEL
157 select SYS_SUPPORTS_64BIT_KERNEL
158 select SYS_SUPPORTS_LITTLE_ENDIAN
160 config MACH_DECSTATION
167 select CPU_DADDI_WORKAROUNDS if 64BIT
168 select CPU_R4000_WORKAROUNDS if 64BIT
169 select CPU_R4400_WORKAROUNDS if 64BIT
170 select DMA_NONCOHERENT
173 select SYS_HAS_CPU_R3000
174 select SYS_HAS_CPU_R4X00
175 select SYS_SUPPORTS_32BIT_KERNEL
176 select SYS_SUPPORTS_64BIT_KERNEL
177 select SYS_SUPPORTS_LITTLE_ENDIAN
178 select SYS_SUPPORTS_128HZ
179 select SYS_SUPPORTS_256HZ
180 select SYS_SUPPORTS_1024HZ
182 This enables support for DEC's MIPS based workstations. For details
183 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
184 DECstation porting pages on <http://decstation.unix-ag.org/>.
186 If you have one of the following DECstation Models you definitely
187 want to choose R4xx0 for the CPU Type:
194 otherwise choose R3000.
197 bool "Jazz family of machines"
200 select ARCH_MAY_HAVE_PC_FDC
203 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
204 select GENERIC_ISA_DMA
205 select HAVE_PCSPKR_PLATFORM
210 select SYS_HAS_CPU_R4X00
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_64BIT_KERNEL
213 select SYS_SUPPORTS_100HZ
215 This a family of machines based on the MIPS R4030 chipset which was
216 used by several vendors to build RISC/os and Windows NT workstations.
217 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
218 Olivetti M700-10 workstations.
221 bool "Ingenic JZ4740 based machines"
222 select SYS_HAS_CPU_MIPS32_R1
223 select SYS_SUPPORTS_32BIT_KERNEL
224 select SYS_SUPPORTS_LITTLE_ENDIAN
225 select SYS_SUPPORTS_ZBOOT_UART16550
226 select DMA_NONCOHERENT
229 select ARCH_REQUIRE_GPIOLIB
230 select SYS_HAS_EARLY_PRINTK
233 select GENERIC_IRQ_CHIP
236 bool "Lantiq based platforms"
237 select DMA_NONCOHERENT
241 select SYS_HAS_CPU_MIPS32_R1
242 select SYS_HAS_CPU_MIPS32_R2
243 select SYS_SUPPORTS_BIG_ENDIAN
244 select SYS_SUPPORTS_32BIT_KERNEL
245 select SYS_SUPPORTS_MULTITHREADING
246 select SYS_HAS_EARLY_PRINTK
247 select ARCH_REQUIRE_GPIOLIB
250 select HAVE_MACH_CLKDEV
254 select PINCTRL_LANTIQ
257 bool "LASAT Networks platforms"
260 select DMA_NONCOHERENT
261 select SYS_HAS_EARLY_PRINTK
264 select PCI_GT64XXX_PCI0
266 select R5000_CPU_SCACHE
267 select SYS_HAS_CPU_R5000
268 select SYS_SUPPORTS_32BIT_KERNEL
269 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
270 select SYS_SUPPORTS_LITTLE_ENDIAN
273 bool "Loongson family of machines"
274 select SYS_SUPPORTS_ZBOOT
276 This enables the support of Loongson family of machines.
278 Loongson is a family of general-purpose MIPS-compatible CPUs.
279 developed at Institute of Computing Technology (ICT),
280 Chinese Academy of Sciences (CAS) in the People's Republic
281 of China. The chief architect is Professor Weiwu Hu.
283 config MACH_LOONGSON1
284 bool "Loongson 1 family of machines"
285 select SYS_SUPPORTS_ZBOOT
287 This enables support for the Loongson 1 based machines.
289 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
290 the ICT (Institute of Computing Technology) and the Chinese Academy
294 bool "MIPS Malta board"
295 select ARCH_MAY_HAVE_PC_FDC
301 select DMA_NONCOHERENT
302 select GENERIC_ISA_DMA
303 select HAVE_PCSPKR_PLATFORM
309 select MIPS_BOARDS_GEN
311 select MIPS_CPU_SCACHE
312 select PCI_GT64XXX_PCI0
315 select SYS_HAS_CPU_MIPS32_R1
316 select SYS_HAS_CPU_MIPS32_R2
317 select SYS_HAS_CPU_MIPS64_R1
318 select SYS_HAS_CPU_MIPS64_R2
319 select SYS_HAS_CPU_NEVADA
320 select SYS_HAS_CPU_RM7000
321 select SYS_HAS_EARLY_PRINTK
322 select SYS_SUPPORTS_32BIT_KERNEL
323 select SYS_SUPPORTS_64BIT_KERNEL
324 select SYS_SUPPORTS_BIG_ENDIAN
325 select SYS_SUPPORTS_LITTLE_ENDIAN
326 select SYS_SUPPORTS_MIPS_CMP
327 select SYS_SUPPORTS_MULTITHREADING
328 select SYS_SUPPORTS_SMARTMIPS
329 select SYS_SUPPORTS_ZBOOT
331 This enables support for the MIPS Technologies Malta evaluation
335 bool "MIPS SEAD3 board"
341 select CPU_MIPSR2_IRQ_VI
342 select CPU_MIPSR2_IRQ_EI
343 select DMA_NONCOHERENT
346 select MIPS_BOARDS_GEN
347 select MIPS_CPU_SCACHE
349 select SYS_HAS_CPU_MIPS32_R1
350 select SYS_HAS_CPU_MIPS32_R2
351 select SYS_HAS_CPU_MIPS64_R1
352 select SYS_HAS_EARLY_PRINTK
353 select SYS_SUPPORTS_32BIT_KERNEL
354 select SYS_SUPPORTS_64BIT_KERNEL
355 select SYS_SUPPORTS_BIG_ENDIAN
356 select SYS_SUPPORTS_LITTLE_ENDIAN
357 select SYS_SUPPORTS_SMARTMIPS
358 select SYS_SUPPORTS_MICROMIPS
359 select USB_ARCH_HAS_EHCI
360 select USB_EHCI_BIG_ENDIAN_DESC
361 select USB_EHCI_BIG_ENDIAN_MMIO
364 This enables support for the MIPS Technologies SEAD3 evaluation
368 bool "NEC EMMA2RH Mark-eins board"
372 This enables support for the NEC Electronics Mark-eins boards.
375 bool "NEC VR4100 series based machines"
378 select SYS_HAS_CPU_VR41XX
379 select ARCH_REQUIRE_GPIOLIB
382 bool "NXP STB220 board"
385 Support for NXP Semiconductors STB220 Development Board.
392 Support for NXP Semiconductors STB225 Development Board.
395 bool "PMC-Sierra MSP chipsets"
398 select DMA_NONCOHERENT
400 select NO_EXCEPT_FILL
402 select SYS_HAS_CPU_MIPS32_R1
403 select SYS_HAS_CPU_MIPS32_R2
404 select SYS_SUPPORTS_32BIT_KERNEL
405 select SYS_SUPPORTS_BIG_ENDIAN
408 select SERIAL_8250_CONSOLE
410 This adds support for the PMC-Sierra family of Multi-Service
411 Processor System-On-A-Chips. These parts include a number
412 of integrated peripherals, interfaces and DSPs in addition to
413 a variety of MIPS cores.
419 select CPU_MIPSR2_IRQ_VI
420 select CPU_MIPSR2_IRQ_EI
422 select DMA_NONCOHERENT
424 select SYS_HAS_EARLY_PRINTK
425 select SYS_HAS_CPU_MIPS32_R2
426 select SYS_SUPPORTS_32BIT_KERNEL
427 select SYS_SUPPORTS_BIG_ENDIAN
428 select SYS_SUPPORTS_HIGHMEM
429 select USB_OHCI_LITTLE_ENDIAN
431 This enables support for the Cisco PowerTV Platform.
434 bool "Ralink based machines"
438 select DMA_NONCOHERENT
441 select SYS_HAS_CPU_MIPS32_R1
442 select SYS_HAS_CPU_MIPS32_R2
443 select SYS_SUPPORTS_32BIT_KERNEL
444 select SYS_SUPPORTS_LITTLE_ENDIAN
445 select SYS_HAS_EARLY_PRINTK
446 select HAVE_MACH_CLKDEV
450 bool "SGI IP22 (Indy/Indigo2)"
456 select DEFAULT_SGI_PARTITION
457 select DMA_NONCOHERENT
461 select IP22_CPU_SCACHE
463 select GENERIC_ISA_DMA_SUPPORT_BROKEN
465 select SGI_HAS_INDYDOG
471 select SYS_HAS_CPU_R4X00
472 select SYS_HAS_CPU_R5000
474 # Disable EARLY_PRINTK for now since it leads to overwritten prom
475 # memory during early boot on some machines.
477 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
478 # for a more details discussion
480 # select SYS_HAS_EARLY_PRINTK
481 select SYS_SUPPORTS_32BIT_KERNEL
482 select SYS_SUPPORTS_64BIT_KERNEL
483 select SYS_SUPPORTS_BIG_ENDIAN
485 This are the SGI Indy, Challenge S and Indigo2, as well as certain
486 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
487 that runs on these, say Y here.
490 bool "SGI IP27 (Origin200/2000)"
494 select DEFAULT_SGI_PARTITION
496 select SYS_HAS_EARLY_PRINTK
498 select NR_CPUS_DEFAULT_64
499 select SYS_HAS_CPU_R10000
500 select SYS_SUPPORTS_64BIT_KERNEL
501 select SYS_SUPPORTS_BIG_ENDIAN
502 select SYS_SUPPORTS_NUMA
503 select SYS_SUPPORTS_SMP
505 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
506 workstations. To compile a Linux kernel that runs on these, say Y
510 bool "SGI IP28 (Indigo2 R10k)"
516 select DEFAULT_SGI_PARTITION
517 select DMA_NONCOHERENT
518 select GENERIC_ISA_DMA_SUPPORT_BROKEN
524 select SGI_HAS_INDYDOG
530 select SYS_HAS_CPU_R10000
532 # Disable EARLY_PRINTK for now since it leads to overwritten prom
533 # memory during early boot on some machines.
535 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
536 # for a more details discussion
538 # select SYS_HAS_EARLY_PRINTK
539 select SYS_SUPPORTS_64BIT_KERNEL
540 select SYS_SUPPORTS_BIG_ENDIAN
542 This is the SGI Indigo2 with R10000 processor. To compile a Linux
543 kernel that runs on these, say Y here.
552 select DMA_NONCOHERENT
555 select R5000_CPU_SCACHE
556 select RM7000_CPU_SCACHE
557 select SYS_HAS_CPU_R5000
558 select SYS_HAS_CPU_R10000 if BROKEN
559 select SYS_HAS_CPU_RM7000
560 select SYS_HAS_CPU_NEVADA
561 select SYS_SUPPORTS_64BIT_KERNEL
562 select SYS_SUPPORTS_BIG_ENDIAN
564 If you want this kernel to run on SGI O2 workstation, say Y here.
567 bool "Sibyte BCM91120C-CRhine"
570 select SIBYTE_BCM1120
572 select SYS_HAS_CPU_SB1
573 select SYS_SUPPORTS_BIG_ENDIAN
574 select SYS_SUPPORTS_LITTLE_ENDIAN
577 bool "Sibyte BCM91120x-Carmel"
580 select SIBYTE_BCM1120
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_LITTLE_ENDIAN
587 bool "Sibyte BCM91125C-CRhone"
590 select SIBYTE_BCM1125
592 select SYS_HAS_CPU_SB1
593 select SYS_SUPPORTS_BIG_ENDIAN
594 select SYS_SUPPORTS_HIGHMEM
595 select SYS_SUPPORTS_LITTLE_ENDIAN
598 bool "Sibyte BCM91125E-Rhone"
601 select SIBYTE_BCM1125H
603 select SYS_HAS_CPU_SB1
604 select SYS_SUPPORTS_BIG_ENDIAN
605 select SYS_SUPPORTS_LITTLE_ENDIAN
608 bool "Sibyte BCM91250A-SWARM"
611 select HAVE_PATA_PLATFORM
612 select NR_CPUS_DEFAULT_2
615 select SYS_HAS_CPU_SB1
616 select SYS_SUPPORTS_BIG_ENDIAN
617 select SYS_SUPPORTS_HIGHMEM
618 select SYS_SUPPORTS_LITTLE_ENDIAN
619 select ZONE_DMA32 if 64BIT
621 config SIBYTE_LITTLESUR
622 bool "Sibyte BCM91250C2-LittleSur"
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
634 config SIBYTE_SENTOSA
635 bool "Sibyte BCM91250E-Sentosa"
638 select NR_CPUS_DEFAULT_2
641 select SYS_HAS_CPU_SB1
642 select SYS_SUPPORTS_BIG_ENDIAN
643 select SYS_SUPPORTS_LITTLE_ENDIAN
646 bool "Sibyte BCM91480B-BigSur"
649 select NR_CPUS_DEFAULT_4
650 select SIBYTE_BCM1x80
652 select SYS_HAS_CPU_SB1
653 select SYS_SUPPORTS_BIG_ENDIAN
654 select SYS_SUPPORTS_HIGHMEM
655 select SYS_SUPPORTS_LITTLE_ENDIAN
656 select ZONE_DMA32 if 64BIT
659 bool "SNI RM200/300/400"
660 select FW_ARC if CPU_LITTLE_ENDIAN
661 select FW_ARC32 if CPU_LITTLE_ENDIAN
662 select FW_SNIPROM if CPU_BIG_ENDIAN
663 select ARCH_MAY_HAVE_PC_FDC
667 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
668 select DMA_NONCOHERENT
669 select GENERIC_ISA_DMA
670 select HAVE_PCSPKR_PLATFORM
677 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
678 select SYS_HAS_CPU_R4X00
679 select SYS_HAS_CPU_R5000
680 select SYS_HAS_CPU_R10000
681 select R5000_CPU_SCACHE
682 select SYS_HAS_EARLY_PRINTK
683 select SYS_SUPPORTS_32BIT_KERNEL
684 select SYS_SUPPORTS_64BIT_KERNEL
685 select SYS_SUPPORTS_BIG_ENDIAN
686 select SYS_SUPPORTS_HIGHMEM
687 select SYS_SUPPORTS_LITTLE_ENDIAN
689 The SNI RM200/300/400 are MIPS-based machines manufactured by
690 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
691 Technology and now in turn merged with Fujitsu. Say Y here to
692 support this machine type.
695 bool "Toshiba TX39 series based machines"
698 bool "Toshiba TX49 series based machines"
700 config MIKROTIK_RB532
701 bool "Mikrotik RB532 boards"
704 select DMA_NONCOHERENT
707 select SYS_HAS_CPU_MIPS32_R1
708 select SYS_SUPPORTS_32BIT_KERNEL
709 select SYS_SUPPORTS_LITTLE_ENDIAN
712 select ARCH_REQUIRE_GPIOLIB
714 Support the Mikrotik(tm) RouterBoard 532 series,
715 based on the IDT RC32434 SoC.
718 bool "Wind River PPMC board"
723 select DMA_NONCOHERENT
725 select PCI_GT64XXX_PCI0
727 select SYS_HAS_CPU_MIPS32_R1
728 select SYS_HAS_CPU_MIPS32_R2
729 select SYS_HAS_CPU_MIPS64_R1
730 select SYS_HAS_CPU_NEVADA
731 select SYS_HAS_CPU_RM7000
732 select SYS_SUPPORTS_32BIT_KERNEL
733 select SYS_SUPPORTS_64BIT_KERNEL
734 select SYS_SUPPORTS_BIG_ENDIAN
735 select SYS_SUPPORTS_LITTLE_ENDIAN
737 This enables support for the Wind River MIPS32 4KC PPMC evaluation
738 board, which is based on GT64120 bridge chip.
740 config CAVIUM_OCTEON_SIMULATOR
741 bool "Cavium Networks Octeon Simulator"
743 select 64BIT_PHYS_ADDR
745 select SYS_SUPPORTS_64BIT_KERNEL
746 select SYS_SUPPORTS_BIG_ENDIAN
747 select SYS_SUPPORTS_HOTPLUG_CPU
748 select SYS_HAS_CPU_CAVIUM_OCTEON
751 The Octeon simulator is software performance model of the Cavium
752 Octeon Processor. It supports simulating Octeon processors on x86
755 config CAVIUM_OCTEON_REFERENCE_BOARD
756 bool "Cavium Networks Octeon reference board"
758 select 64BIT_PHYS_ADDR
760 select SYS_SUPPORTS_64BIT_KERNEL
761 select SYS_SUPPORTS_BIG_ENDIAN
763 select SYS_SUPPORTS_HOTPLUG_CPU
764 select SYS_HAS_EARLY_PRINTK
765 select SYS_HAS_CPU_CAVIUM_OCTEON
768 select ARCH_SUPPORTS_MSI
770 select USB_ARCH_HAS_OHCI
771 select USB_ARCH_HAS_EHCI
774 This option supports all of the Octeon reference boards from Cavium
775 Networks. It builds a kernel that dynamically determines the Octeon
776 CPU type and supports all known board reference implementations.
777 Some of the supported boards are:
784 Say Y here for most Octeon reference boards.
787 bool "Netlogic XLR/XLS based systems"
790 select SYS_HAS_CPU_XLR
791 select SYS_SUPPORTS_SMP
794 select SYS_SUPPORTS_32BIT_KERNEL
795 select SYS_SUPPORTS_64BIT_KERNEL
796 select 64BIT_PHYS_ADDR
797 select SYS_SUPPORTS_BIG_ENDIAN
798 select SYS_SUPPORTS_HIGHMEM
800 select NR_CPUS_DEFAULT_32
804 select ARCH_SUPPORTS_MSI
805 select ZONE_DMA32 if 64BIT
807 select SYS_HAS_EARLY_PRINTK
808 select USB_ARCH_HAS_OHCI if USB_SUPPORT
809 select USB_ARCH_HAS_EHCI if USB_SUPPORT
811 Support for systems based on Netlogic XLR and XLS processors.
812 Say Y here if you have a XLR or XLS based board.
815 bool "Netlogic XLP based systems"
818 select SYS_HAS_CPU_XLP
819 select SYS_SUPPORTS_SMP
821 select SYS_SUPPORTS_32BIT_KERNEL
822 select SYS_SUPPORTS_64BIT_KERNEL
823 select 64BIT_PHYS_ADDR
824 select SYS_SUPPORTS_BIG_ENDIAN
825 select SYS_SUPPORTS_LITTLE_ENDIAN
826 select SYS_SUPPORTS_HIGHMEM
828 select NR_CPUS_DEFAULT_32
832 select ZONE_DMA32 if 64BIT
834 select SYS_HAS_EARLY_PRINTK
837 This board is based on Netlogic XLP Processor.
838 Say Y here if you have a XLP based board.
842 source "arch/mips/alchemy/Kconfig"
843 source "arch/mips/ath79/Kconfig"
844 source "arch/mips/bcm47xx/Kconfig"
845 source "arch/mips/bcm63xx/Kconfig"
846 source "arch/mips/jazz/Kconfig"
847 source "arch/mips/jz4740/Kconfig"
848 source "arch/mips/lantiq/Kconfig"
849 source "arch/mips/lasat/Kconfig"
850 source "arch/mips/pmcs-msp71xx/Kconfig"
851 source "arch/mips/powertv/Kconfig"
852 source "arch/mips/ralink/Kconfig"
853 source "arch/mips/sgi-ip27/Kconfig"
854 source "arch/mips/sibyte/Kconfig"
855 source "arch/mips/txx9/Kconfig"
856 source "arch/mips/vr41xx/Kconfig"
857 source "arch/mips/cavium-octeon/Kconfig"
858 source "arch/mips/loongson/Kconfig"
859 source "arch/mips/loongson1/Kconfig"
860 source "arch/mips/netlogic/Kconfig"
864 config RWSEM_GENERIC_SPINLOCK
868 config RWSEM_XCHGADD_ALGORITHM
871 config ARCH_HAS_ILOG2_U32
875 config ARCH_HAS_ILOG2_U64
879 config GENERIC_HWEIGHT
883 config GENERIC_CALIBRATE_DELAY
887 config SCHED_OMIT_FRAME_POINTER
892 # Select some configuration options automatically based on user selections.
897 config ARCH_MAY_HAVE_PC_FDC
944 select ARCH_REQUIRE_GPIOLIB
950 config ARCH_DMA_ADDR_T_64BIT
951 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
956 config DMA_NONCOHERENT
958 select NEED_DMA_MAP_STATE
960 config NEED_DMA_MAP_STATE
963 config SYS_HAS_EARLY_PRINTK
967 bool "Support for hot-pluggable CPUs"
968 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
970 Say Y here to allow turning CPUs off and on. CPUs can be
971 controlled through /sys/devices/system/cpu.
972 (Note: power management support will enable this option
973 automatically on SMP systems. )
974 Say N if you want to disable CPU hotplug.
976 config SYS_SUPPORTS_HOTPLUG_CPU
991 config MIPS_DISABLE_OBSOLETE_IDE
1003 config GENERIC_ISA_DMA
1005 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1008 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1010 select GENERIC_ISA_DMA
1018 config HOLES_IN_ZONE
1022 # Endianness selection. Sufficiently obscure so many users don't know what to
1023 # answer,so we try hard to limit the available choices. Also the use of a
1024 # choice statement should be more obvious to the user.
1027 prompt "Endianness selection"
1029 Some MIPS machines can be configured for either little or big endian
1030 byte order. These modes require different kernels and a different
1031 Linux distribution. In general there is one preferred byteorder for a
1032 particular system but some systems are just as commonly used in the
1033 one or the other endianness.
1035 config CPU_BIG_ENDIAN
1037 depends on SYS_SUPPORTS_BIG_ENDIAN
1039 config CPU_LITTLE_ENDIAN
1040 bool "Little endian"
1041 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1049 config SYS_SUPPORTS_APM_EMULATION
1052 config SYS_SUPPORTS_BIG_ENDIAN
1055 config SYS_SUPPORTS_LITTLE_ENDIAN
1058 config SYS_SUPPORTS_HUGETLBFS
1060 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1063 config MIPS_HUGE_TLB_SUPPORT
1064 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1087 config MIPS_BOARDS_GEN
1090 config PCI_GT64XXX_PCI0
1093 config NO_EXCEPT_FILL
1100 select DMA_NONCOHERENT
1102 select SWAP_IO_SPACE
1103 select SYS_HAS_CPU_R5500
1104 select SYS_SUPPORTS_32BIT_KERNEL
1105 select SYS_SUPPORTS_64BIT_KERNEL
1106 select SYS_SUPPORTS_BIG_ENDIAN
1113 select DMA_NONCOHERENT
1114 select SYS_HAS_CPU_MIPS32_R2
1115 select SYS_SUPPORTS_32BIT_KERNEL
1116 select SYS_SUPPORTS_LITTLE_ENDIAN
1117 select SYS_SUPPORTS_BIG_ENDIAN
1119 select CPU_MIPSR2_IRQ_VI
1125 config SWAP_IO_SPACE
1128 config SGI_HAS_INDYDOG
1140 config SGI_HAS_ZILOG
1143 config SGI_HAS_I8042
1146 config DEFAULT_SGI_PARTITION
1158 config MIPS_L1_CACHE_SHIFT
1160 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1161 default "6" if MIPS_CPU_SCACHE
1162 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1165 config HAVE_STD_PC_SERIAL_PORT
1169 bool "ARC console support"
1170 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1174 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1179 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1188 menu "CPU selection"
1194 config CPU_LOONGSON2E
1196 depends on SYS_HAS_CPU_LOONGSON2E
1197 select CPU_LOONGSON2
1199 The Loongson 2E processor implements the MIPS III instruction set
1200 with many extensions.
1202 It has an internal FPGA northbridge, which is compatible to
1205 config CPU_LOONGSON2F
1207 depends on SYS_HAS_CPU_LOONGSON2F
1208 select CPU_LOONGSON2
1210 select ARCH_REQUIRE_GPIOLIB
1212 The Loongson 2F processor implements the MIPS III instruction set
1213 with many extensions.
1215 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1216 have a similar programming interface with FPGA northbridge used in
1219 config CPU_LOONGSON1B
1221 depends on SYS_HAS_CPU_LOONGSON1B
1222 select CPU_LOONGSON1
1224 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1225 release 2 instruction set.
1227 config CPU_MIPS32_R1
1228 bool "MIPS32 Release 1"
1229 depends on SYS_HAS_CPU_MIPS32_R1
1230 select CPU_HAS_PREFETCH
1231 select CPU_SUPPORTS_32BIT_KERNEL
1232 select CPU_SUPPORTS_HIGHMEM
1234 Choose this option to build a kernel for release 1 or later of the
1235 MIPS32 architecture. Most modern embedded systems with a 32-bit
1236 MIPS processor are based on a MIPS32 processor. If you know the
1237 specific type of processor in your system, choose those that one
1238 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1239 Release 2 of the MIPS32 architecture is available since several
1240 years so chances are you even have a MIPS32 Release 2 processor
1241 in which case you should choose CPU_MIPS32_R2 instead for better
1244 config CPU_MIPS32_R2
1245 bool "MIPS32 Release 2"
1246 depends on SYS_HAS_CPU_MIPS32_R2
1247 select CPU_HAS_PREFETCH
1248 select CPU_SUPPORTS_32BIT_KERNEL
1249 select CPU_SUPPORTS_HIGHMEM
1251 Choose this option to build a kernel for release 2 or later of the
1252 MIPS32 architecture. Most modern embedded systems with a 32-bit
1253 MIPS processor are based on a MIPS32 processor. If you know the
1254 specific type of processor in your system, choose those that one
1255 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1257 config CPU_MIPS64_R1
1258 bool "MIPS64 Release 1"
1259 depends on SYS_HAS_CPU_MIPS64_R1
1260 select CPU_HAS_PREFETCH
1261 select CPU_SUPPORTS_32BIT_KERNEL
1262 select CPU_SUPPORTS_64BIT_KERNEL
1263 select CPU_SUPPORTS_HIGHMEM
1264 select CPU_SUPPORTS_HUGEPAGES
1266 Choose this option to build a kernel for release 1 or later of the
1267 MIPS64 architecture. Many modern embedded systems with a 64-bit
1268 MIPS processor are based on a MIPS64 processor. If you know the
1269 specific type of processor in your system, choose those that one
1270 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1271 Release 2 of the MIPS64 architecture is available since several
1272 years so chances are you even have a MIPS64 Release 2 processor
1273 in which case you should choose CPU_MIPS64_R2 instead for better
1276 config CPU_MIPS64_R2
1277 bool "MIPS64 Release 2"
1278 depends on SYS_HAS_CPU_MIPS64_R2
1279 select CPU_HAS_PREFETCH
1280 select CPU_SUPPORTS_32BIT_KERNEL
1281 select CPU_SUPPORTS_64BIT_KERNEL
1282 select CPU_SUPPORTS_HIGHMEM
1283 select CPU_SUPPORTS_HUGEPAGES
1285 Choose this option to build a kernel for release 2 or later of the
1286 MIPS64 architecture. Many modern embedded systems with a 64-bit
1287 MIPS processor are based on a MIPS64 processor. If you know the
1288 specific type of processor in your system, choose those that one
1289 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1293 depends on SYS_HAS_CPU_R3000
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296 select CPU_SUPPORTS_HIGHMEM
1298 Please make sure to pick the right CPU type. Linux/MIPS is not
1299 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1300 *not* work on R4000 machines and vice versa. However, since most
1301 of the supported machines have an R4000 (or similar) CPU, R4x00
1302 might be a safe bet. If the resulting kernel does not work,
1303 try to recompile with R3000.
1307 depends on SYS_HAS_CPU_TX39XX
1308 select CPU_SUPPORTS_32BIT_KERNEL
1312 depends on SYS_HAS_CPU_VR41XX
1313 select CPU_SUPPORTS_32BIT_KERNEL
1314 select CPU_SUPPORTS_64BIT_KERNEL
1316 The options selects support for the NEC VR4100 series of processors.
1317 Only choose this option if you have one of these processors as a
1318 kernel built with this option will not run on any other type of
1319 processor or vice versa.
1323 depends on SYS_HAS_CPU_R4300
1324 select CPU_SUPPORTS_32BIT_KERNEL
1325 select CPU_SUPPORTS_64BIT_KERNEL
1327 MIPS Technologies R4300-series processors.
1331 depends on SYS_HAS_CPU_R4X00
1332 select CPU_SUPPORTS_32BIT_KERNEL
1333 select CPU_SUPPORTS_64BIT_KERNEL
1334 select CPU_SUPPORTS_HUGEPAGES
1336 MIPS Technologies R4000-series processors other than 4300, including
1337 the R4000, R4400, R4600, and 4700.
1341 depends on SYS_HAS_CPU_TX49XX
1342 select CPU_HAS_PREFETCH
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1345 select CPU_SUPPORTS_HUGEPAGES
1349 depends on SYS_HAS_CPU_R5000
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1352 select CPU_SUPPORTS_HUGEPAGES
1354 MIPS Technologies R5000-series processors other than the Nevada.
1358 depends on SYS_HAS_CPU_R5432
1359 select CPU_SUPPORTS_32BIT_KERNEL
1360 select CPU_SUPPORTS_64BIT_KERNEL
1361 select CPU_SUPPORTS_HUGEPAGES
1365 depends on SYS_HAS_CPU_R5500
1366 select CPU_SUPPORTS_32BIT_KERNEL
1367 select CPU_SUPPORTS_64BIT_KERNEL
1368 select CPU_SUPPORTS_HUGEPAGES
1370 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1375 depends on SYS_HAS_CPU_R6000
1376 select CPU_SUPPORTS_32BIT_KERNEL
1378 MIPS Technologies R6000 and R6000A series processors. Note these
1379 processors are extremely rare and the support for them is incomplete.
1383 depends on SYS_HAS_CPU_NEVADA
1384 select CPU_SUPPORTS_32BIT_KERNEL
1385 select CPU_SUPPORTS_64BIT_KERNEL
1386 select CPU_SUPPORTS_HUGEPAGES
1388 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1392 depends on SYS_HAS_CPU_R8000
1393 select CPU_HAS_PREFETCH
1394 select CPU_SUPPORTS_64BIT_KERNEL
1396 MIPS Technologies R8000 processors. Note these processors are
1397 uncommon and the support for them is incomplete.
1401 depends on SYS_HAS_CPU_R10000
1402 select CPU_HAS_PREFETCH
1403 select CPU_SUPPORTS_32BIT_KERNEL
1404 select CPU_SUPPORTS_64BIT_KERNEL
1405 select CPU_SUPPORTS_HIGHMEM
1406 select CPU_SUPPORTS_HUGEPAGES
1408 MIPS Technologies R10000-series processors.
1412 depends on SYS_HAS_CPU_RM7000
1413 select CPU_HAS_PREFETCH
1414 select CPU_SUPPORTS_32BIT_KERNEL
1415 select CPU_SUPPORTS_64BIT_KERNEL
1416 select CPU_SUPPORTS_HIGHMEM
1417 select CPU_SUPPORTS_HUGEPAGES
1421 depends on SYS_HAS_CPU_SB1
1422 select CPU_SUPPORTS_32BIT_KERNEL
1423 select CPU_SUPPORTS_64BIT_KERNEL
1424 select CPU_SUPPORTS_HIGHMEM
1425 select CPU_SUPPORTS_HUGEPAGES
1426 select WEAK_ORDERING
1428 config CPU_CAVIUM_OCTEON
1429 bool "Cavium Octeon processor"
1430 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1431 select ARCH_SPARSEMEM_ENABLE
1432 select CPU_HAS_PREFETCH
1433 select CPU_SUPPORTS_64BIT_KERNEL
1434 select SYS_SUPPORTS_SMP
1435 select NR_CPUS_DEFAULT_16
1436 select WEAK_ORDERING
1437 select CPU_SUPPORTS_HIGHMEM
1438 select CPU_SUPPORTS_HUGEPAGES
1442 The Cavium Octeon processor is a highly integrated chip containing
1443 many ethernet hardware widgets for networking tasks. The processor
1444 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1445 Full details can be found at http://www.caviumnetworks.com.
1447 config CPU_BMIPS3300
1449 depends on SYS_HAS_CPU_BMIPS3300
1452 Broadcom BMIPS3300 processors.
1454 config CPU_BMIPS4350
1456 depends on SYS_HAS_CPU_BMIPS4350
1458 select SYS_SUPPORTS_SMP
1459 select SYS_SUPPORTS_HOTPLUG_CPU
1461 Broadcom BMIPS4350 ("VIPER") processors.
1463 config CPU_BMIPS4380
1465 depends on SYS_HAS_CPU_BMIPS4380
1467 select SYS_SUPPORTS_SMP
1468 select SYS_SUPPORTS_HOTPLUG_CPU
1470 Broadcom BMIPS4380 processors.
1472 config CPU_BMIPS5000
1474 depends on SYS_HAS_CPU_BMIPS5000
1476 select CPU_SUPPORTS_HIGHMEM
1477 select MIPS_CPU_SCACHE
1478 select SYS_SUPPORTS_SMP
1479 select SYS_SUPPORTS_HOTPLUG_CPU
1481 Broadcom BMIPS5000 processors.
1484 bool "Netlogic XLR SoC"
1485 depends on SYS_HAS_CPU_XLR
1486 select CPU_SUPPORTS_32BIT_KERNEL
1487 select CPU_SUPPORTS_64BIT_KERNEL
1488 select CPU_SUPPORTS_HIGHMEM
1489 select CPU_SUPPORTS_HUGEPAGES
1490 select WEAK_ORDERING
1491 select WEAK_REORDERING_BEYOND_LLSC
1493 Netlogic Microsystems XLR/XLS processors.
1496 bool "Netlogic XLP SoC"
1497 depends on SYS_HAS_CPU_XLP
1498 select CPU_SUPPORTS_32BIT_KERNEL
1499 select CPU_SUPPORTS_64BIT_KERNEL
1500 select CPU_SUPPORTS_HIGHMEM
1501 select WEAK_ORDERING
1502 select WEAK_REORDERING_BEYOND_LLSC
1503 select CPU_HAS_PREFETCH
1506 Netlogic Microsystems XLP processors.
1510 config CPU_NOP_WORKAROUNDS
1513 config CPU_JUMP_WORKAROUNDS
1516 config CPU_LOONGSON2F_WORKAROUNDS
1517 bool "Loongson 2F Workarounds"
1519 select CPU_NOP_WORKAROUNDS
1520 select CPU_JUMP_WORKAROUNDS
1522 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1523 require workarounds. Without workarounds the system may hang
1524 unexpectedly. For more information please refer to the gas
1525 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1527 Loongson 2F03 and later have fixed these issues and no workarounds
1528 are needed. The workarounds have no significant side effect on them
1529 but may decrease the performance of the system so this option should
1530 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1533 If unsure, please say Y.
1534 endif # CPU_LOONGSON2F
1536 config SYS_SUPPORTS_ZBOOT
1538 select HAVE_KERNEL_GZIP
1539 select HAVE_KERNEL_BZIP2
1540 select HAVE_KERNEL_LZMA
1541 select HAVE_KERNEL_LZO
1543 config SYS_SUPPORTS_ZBOOT_UART16550
1545 select SYS_SUPPORTS_ZBOOT
1547 config CPU_LOONGSON2
1549 select CPU_SUPPORTS_32BIT_KERNEL
1550 select CPU_SUPPORTS_64BIT_KERNEL
1551 select CPU_SUPPORTS_HIGHMEM
1552 select CPU_SUPPORTS_HUGEPAGES
1554 config CPU_LOONGSON1
1558 select CPU_HAS_PREFETCH
1559 select CPU_SUPPORTS_32BIT_KERNEL
1560 select CPU_SUPPORTS_HIGHMEM
1565 select CPU_SUPPORTS_32BIT_KERNEL
1566 select DMA_NONCOHERENT
1568 select SWAP_IO_SPACE
1569 select WEAK_ORDERING
1571 config SYS_HAS_CPU_LOONGSON2E
1574 config SYS_HAS_CPU_LOONGSON2F
1576 select CPU_SUPPORTS_CPUFREQ
1577 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1578 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1580 config SYS_HAS_CPU_LOONGSON1B
1583 config SYS_HAS_CPU_MIPS32_R1
1586 config SYS_HAS_CPU_MIPS32_R2
1589 config SYS_HAS_CPU_MIPS64_R1
1592 config SYS_HAS_CPU_MIPS64_R2
1595 config SYS_HAS_CPU_R3000
1598 config SYS_HAS_CPU_TX39XX
1601 config SYS_HAS_CPU_VR41XX
1604 config SYS_HAS_CPU_R4300
1607 config SYS_HAS_CPU_R4X00
1610 config SYS_HAS_CPU_TX49XX
1613 config SYS_HAS_CPU_R5000
1616 config SYS_HAS_CPU_R5432
1619 config SYS_HAS_CPU_R5500
1622 config SYS_HAS_CPU_R6000
1625 config SYS_HAS_CPU_NEVADA
1628 config SYS_HAS_CPU_R8000
1631 config SYS_HAS_CPU_R10000
1634 config SYS_HAS_CPU_RM7000
1637 config SYS_HAS_CPU_SB1
1640 config SYS_HAS_CPU_CAVIUM_OCTEON
1643 config SYS_HAS_CPU_BMIPS3300
1646 config SYS_HAS_CPU_BMIPS4350
1649 config SYS_HAS_CPU_BMIPS4380
1652 config SYS_HAS_CPU_BMIPS5000
1655 config SYS_HAS_CPU_XLR
1658 config SYS_HAS_CPU_XLP
1662 # CPU may reorder R->R, R->W, W->R, W->W
1663 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1665 config WEAK_ORDERING
1669 # CPU may reorder reads and writes beyond LL/SC
1670 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1672 config WEAK_REORDERING_BEYOND_LLSC
1677 # These two indicate any level of the MIPS32 and MIPS64 architecture
1681 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1685 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1688 # These two indicate the revision of the architecture, either Release 1 or Release 2
1692 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1696 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1698 config SYS_SUPPORTS_32BIT_KERNEL
1700 config SYS_SUPPORTS_64BIT_KERNEL
1702 config CPU_SUPPORTS_32BIT_KERNEL
1704 config CPU_SUPPORTS_64BIT_KERNEL
1706 config CPU_SUPPORTS_CPUFREQ
1708 config CPU_SUPPORTS_ADDRWINCFG
1710 config CPU_SUPPORTS_HUGEPAGES
1712 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1714 config MIPS_PGD_C0_CONTEXT
1716 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1719 # Set to y for ptrace access to watch registers.
1721 config HARDWARE_WATCHPOINTS
1723 default y if CPU_MIPSR1 || CPU_MIPSR2
1728 prompt "Kernel code model"
1730 You should only select this option if you have a workload that
1731 actually benefits from 64-bit processing or if your machine has
1732 large memory. You will only be presented a single option in this
1733 menu if your system does not support both 32-bit and 64-bit kernels.
1736 bool "32-bit kernel"
1737 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1740 Select this option if you want to build a 32-bit kernel.
1742 bool "64-bit kernel"
1743 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1744 select HAVE_SYSCALL_WRAPPERS
1746 Select this option if you want to build a 64-bit kernel.
1751 prompt "Kernel page size"
1752 default PAGE_SIZE_4KB
1754 config PAGE_SIZE_4KB
1756 depends on !CPU_LOONGSON2
1758 This option select the standard 4kB Linux page size. On some
1759 R3000-family processors this is the only available page size. Using
1760 4kB page size will minimize memory consumption and is therefore
1761 recommended for low memory systems.
1763 config PAGE_SIZE_8KB
1765 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1767 Using 8kB page size will result in higher performance kernel at
1768 the price of higher memory consumption. This option is available
1769 only on R8000 and cnMIPS processors. Note that you will need a
1770 suitable Linux distribution to support this.
1772 config PAGE_SIZE_16KB
1774 depends on !CPU_R3000 && !CPU_TX39XX
1776 Using 16kB page size will result in higher performance kernel at
1777 the price of higher memory consumption. This option is available on
1778 all non-R3000 family processors. Note that you will need a suitable
1779 Linux distribution to support this.
1781 config PAGE_SIZE_32KB
1783 depends on CPU_CAVIUM_OCTEON
1785 Using 32kB page size will result in higher performance kernel at
1786 the price of higher memory consumption. This option is available
1787 only on cnMIPS cores. Note that you will need a suitable Linux
1788 distribution to support this.
1790 config PAGE_SIZE_64KB
1792 depends on !CPU_R3000 && !CPU_TX39XX
1794 Using 64kB page size will result in higher performance kernel at
1795 the price of higher memory consumption. This option is available on
1796 all non-R3000 family processor. Not that at the time of this
1797 writing this option is still high experimental.
1801 config FORCE_MAX_ZONEORDER
1802 int "Maximum zone order"
1803 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1804 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1805 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1806 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1807 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1808 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1812 The kernel memory allocator divides physically contiguous memory
1813 blocks into "zones", where each zone is a power of two number of
1814 pages. This option selects the largest power of two that the kernel
1815 keeps in the memory allocator. If you need to allocate very large
1816 blocks of physically contiguous memory, then you may need to
1817 increase this value.
1819 This config option is actually maximum order plus one. For example,
1820 a value of 11 means that the largest free memory block is 2^10 pages.
1822 The page size is not necessarily 4KB. Keep this in mind
1823 when choosing a value for this option.
1826 bool "Use GIC global counter for clock events"
1827 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1829 Use the GIC global counter for the clock events. The R4K clock
1830 event driver is always present, so if the platform ends up not
1831 detecting a GIC, it will fall back to the R4K timer for the
1832 generation of clock events.
1837 config IP22_CPU_SCACHE
1842 # Support for a MIPS32 / MIPS64 style S-caches
1844 config MIPS_CPU_SCACHE
1848 config R5000_CPU_SCACHE
1852 config RM7000_CPU_SCACHE
1856 config SIBYTE_DMA_PAGEOPS
1857 bool "Use DMA to clear/copy pages"
1860 Instead of using the CPU to zero and copy pages, use a Data Mover
1861 channel. These DMA channels are otherwise unused by the standard
1862 SiByte Linux port. Seems to give a small performance benefit.
1864 config CPU_HAS_PREFETCH
1867 config CPU_GENERIC_DUMP_TLB
1869 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1873 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1875 config CPU_R4K_CACHE_TLB
1877 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1880 prompt "MIPS MT options"
1882 config MIPS_MT_DISABLED
1883 bool "Disable multithreading support."
1885 Use this option if your workload can't take advantage of
1886 MIPS hardware multithreading support. On systems that don't have
1887 the option of an MT-enabled processor this option will be the only
1888 option in this menu.
1891 bool "Use 1 TC on each available VPE for SMP"
1892 depends on SYS_SUPPORTS_MULTITHREADING
1893 select CPU_MIPSR2_IRQ_VI
1894 select CPU_MIPSR2_IRQ_EI
1896 select NR_CPUS_DEFAULT_2
1898 select SYS_SUPPORTS_SCHED_SMT if SMP
1899 select SYS_SUPPORTS_SMP
1901 select MIPS_PERF_SHARED_TC_COUNTERS
1903 This is a kernel model which is known a VSMP but lately has been
1904 marketesed into SMVP.
1905 Virtual SMP uses the processor's VPEs to implement virtual
1906 processors. In currently available configuration of the 34K processor
1907 this allows for a dual processor. Both processors will share the same
1908 primary caches; each will obtain the half of the TLB for it's own
1909 exclusive use. For a layman this model can be described as similar to
1910 what Intel calls Hyperthreading.
1912 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1915 bool "SMTC: Use all TCs on all VPEs for SMP"
1916 depends on CPU_MIPS32_R2
1917 #depends on CPU_MIPS64_R2 # once there is hardware ...
1918 depends on SYS_SUPPORTS_MULTITHREADING
1919 select CPU_MIPSR2_IRQ_VI
1920 select CPU_MIPSR2_IRQ_EI
1922 select NR_CPUS_DEFAULT_8
1924 select SYS_SUPPORTS_SMP
1927 This is a kernel model which is known a SMTC or lately has been
1928 marketesed into SMVP.
1929 is presenting the available TC's of the core as processors to Linux.
1930 On currently available 34K processors this means a Linux system will
1931 see up to 5 processors. The implementation of the SMTC kernel differs
1932 significantly from VSMP and cannot efficiently coexist in the same
1933 kernel binary so the choice between VSMP and SMTC is a compile time
1936 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1944 bool "SMT (multithreading) scheduler support"
1945 depends on SYS_SUPPORTS_SCHED_SMT
1948 SMT scheduler support improves the CPU scheduler's decision making
1949 when dealing with MIPS MT enabled cores at a cost of slightly
1950 increased overhead in some places. If unsure say N here.
1952 config SYS_SUPPORTS_SCHED_SMT
1955 config SYS_SUPPORTS_MULTITHREADING
1958 config MIPS_MT_FPAFF
1959 bool "Dynamic FPU affinity for FP-intensive threads"
1961 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1963 config MIPS_VPE_LOADER
1964 bool "VPE loader support."
1965 depends on SYS_SUPPORTS_MULTITHREADING
1966 select CPU_MIPSR2_IRQ_VI
1967 select CPU_MIPSR2_IRQ_EI
1970 Includes a loader for loading an elf relocatable object
1971 onto another VPE and running it.
1973 config MIPS_MT_SMTC_IM_BACKSTOP
1974 bool "Use per-TC register bits as backstop for inhibited IM bits"
1975 depends on MIPS_MT_SMTC
1978 To support multiple TC microthreads acting as "CPUs" within
1979 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1980 during interrupt handling. To support legacy drivers and interrupt
1981 controller management code, SMTC has a "backstop" to track and
1982 if necessary restore the interrupt mask. This has some performance
1983 impact on interrupt service overhead.
1985 config MIPS_MT_SMTC_IRQAFF
1986 bool "Support IRQ affinity API"
1987 depends on MIPS_MT_SMTC
1990 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1991 for SMTC Linux kernel. Requires platform support, of which
1992 an example can be found in the MIPS kernel i8259 and Malta
1993 platform code. Adds some overhead to interrupt dispatch, and
1994 should be used only if you know what you are doing.
1996 config MIPS_VPE_LOADER_TOM
1997 bool "Load VPE program into memory hidden from linux"
1998 depends on MIPS_VPE_LOADER
2001 The loader can use memory that is present but has been hidden from
2002 Linux using the kernel command line option "mem=xxMB". It's up to
2003 you to ensure the amount you put in the option and the space your
2004 program requires is less or equal to the amount physically present.
2006 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2007 config MIPS_VPE_APSP_API
2008 bool "Enable support for AP/SP API (RTLX)"
2009 depends on MIPS_VPE_LOADER
2013 bool "MIPS CMP framework support"
2014 depends on SYS_SUPPORTS_MIPS_CMP
2016 select SYS_SUPPORTS_SMP
2017 select SYS_SUPPORTS_SCHED_SMT if SMP
2018 select WEAK_ORDERING
2021 This is a placeholder option for the GCMP work. It will need to
2022 be handled differently...
2024 config SB1_PASS_1_WORKAROUNDS
2026 depends on CPU_SB1_PASS_1
2029 config SB1_PASS_2_WORKAROUNDS
2031 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2034 config SB1_PASS_2_1_WORKAROUNDS
2036 depends on CPU_SB1 && CPU_SB1_PASS_2
2039 config 64BIT_PHYS_ADDR
2042 config ARCH_PHYS_ADDR_T_64BIT
2043 def_bool 64BIT_PHYS_ADDR
2045 config CPU_HAS_SMARTMIPS
2046 depends on SYS_SUPPORTS_SMARTMIPS
2047 bool "Support for the SmartMIPS ASE"
2049 SmartMIPS is a extension of the MIPS32 architecture aimed at
2050 increased security at both hardware and software level for
2051 smartcards. Enabling this option will allow proper use of the
2052 SmartMIPS instructions by Linux applications. However a kernel with
2053 this option will not work on a MIPS core without SmartMIPS core. If
2054 you don't know you probably don't have SmartMIPS and should say N
2057 config CPU_MICROMIPS
2058 depends on SYS_SUPPORTS_MICROMIPS
2059 bool "Build kernel using microMIPS ISA"
2061 When this option is enabled the kernel will be built using the
2071 # Vectored interrupt mode is an R2 feature
2073 config CPU_MIPSR2_IRQ_VI
2077 # Extended interrupt mode is an R2 feature
2079 config CPU_MIPSR2_IRQ_EI
2084 depends on !CPU_R3000
2090 config CPU_DADDI_WORKAROUNDS
2093 config CPU_R4000_WORKAROUNDS
2095 select CPU_R4400_WORKAROUNDS
2097 config CPU_R4400_WORKAROUNDS
2101 # - Highmem only makes sense for the 32-bit kernel.
2102 # - The current highmem code will only work properly on physically indexed
2103 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2104 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2105 # moment we protect the user and offer the highmem option only on machines
2106 # where it's known to be safe. This will not offer highmem on a few systems
2107 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2108 # indexed CPUs but we're playing safe.
2109 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2110 # know they might have memory configurations that could make use of highmem
2114 bool "High Memory Support"
2115 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2117 config CPU_SUPPORTS_HIGHMEM
2120 config SYS_SUPPORTS_HIGHMEM
2123 config SYS_SUPPORTS_SMARTMIPS
2126 config SYS_SUPPORTS_MICROMIPS
2129 config ARCH_FLATMEM_ENABLE
2131 depends on !NUMA && !CPU_LOONGSON2
2133 config ARCH_DISCONTIGMEM_ENABLE
2135 default y if SGI_IP27
2137 Say Y to support efficient handling of discontiguous physical memory,
2138 for architectures which are either NUMA (Non-Uniform Memory Access)
2139 or have huge holes in the physical address space for other reasons.
2140 See <file:Documentation/vm/numa> for more.
2142 config ARCH_SPARSEMEM_ENABLE
2144 select SPARSEMEM_STATIC
2148 depends on SYS_SUPPORTS_NUMA
2150 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2151 Access). This option improves performance on systems with more
2152 than two nodes; on two node systems it is generally better to
2153 leave it disabled; on single node systems disable this option
2156 config SYS_SUPPORTS_NUMA
2162 depends on NEED_MULTIPLE_NODES
2164 config HW_PERF_EVENTS
2165 bool "Enable hardware performance counter support for perf events"
2166 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2169 Enable hardware performance counter support for perf events. If
2170 disabled, perf events will use software events only.
2175 bool "Multi-Processing support"
2176 depends on SYS_SUPPORTS_SMP
2177 select USE_GENERIC_SMP_HELPERS
2179 This enables support for systems with more than one CPU. If you have
2180 a system with only one CPU, like most personal computers, say N. If
2181 you have a system with more than one CPU, say Y.
2183 If you say N here, the kernel will run on single and multiprocessor
2184 machines, but will use only one CPU of a multiprocessor machine. If
2185 you say Y here, the kernel will run on many, but not all,
2186 singleprocessor machines. On a singleprocessor machine, the kernel
2187 will run faster if you say N here.
2189 People using multiprocessor machines who say Y here should also say
2190 Y to "Enhanced Real Time Clock Support", below.
2192 See also the SMP-HOWTO available at
2193 <http://www.tldp.org/docs.html#howto>.
2195 If you don't know what to do here, say N.
2200 config SYS_SUPPORTS_MIPS_CMP
2203 config SYS_SUPPORTS_SMP
2206 config NR_CPUS_DEFAULT_1
2209 config NR_CPUS_DEFAULT_2
2212 config NR_CPUS_DEFAULT_4
2215 config NR_CPUS_DEFAULT_8
2218 config NR_CPUS_DEFAULT_16
2221 config NR_CPUS_DEFAULT_32
2224 config NR_CPUS_DEFAULT_64
2228 int "Maximum number of CPUs (2-64)"
2229 range 1 64 if NR_CPUS_DEFAULT_1
2231 default "1" if NR_CPUS_DEFAULT_1
2232 default "2" if NR_CPUS_DEFAULT_2
2233 default "4" if NR_CPUS_DEFAULT_4
2234 default "8" if NR_CPUS_DEFAULT_8
2235 default "16" if NR_CPUS_DEFAULT_16
2236 default "32" if NR_CPUS_DEFAULT_32
2237 default "64" if NR_CPUS_DEFAULT_64
2239 This allows you to specify the maximum number of CPUs which this
2240 kernel will support. The maximum supported value is 32 for 32-bit
2241 kernel and 64 for 64-bit kernels; the minimum value which makes
2242 sense is 1 for Qemu (useful only for kernel debugging purposes)
2243 and 2 for all others.
2245 This is purely to save memory - each supported CPU adds
2246 approximately eight kilobytes to the kernel image. For best
2247 performance should round up your number of processors to the next
2250 config MIPS_PERF_SHARED_TC_COUNTERS
2254 # Timer Interrupt Frequency Configuration
2258 prompt "Timer frequency"
2261 Allows the configuration of the timer frequency.
2264 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2267 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2270 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2273 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2276 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2279 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2282 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2286 config SYS_SUPPORTS_48HZ
2289 config SYS_SUPPORTS_100HZ
2292 config SYS_SUPPORTS_128HZ
2295 config SYS_SUPPORTS_250HZ
2298 config SYS_SUPPORTS_256HZ
2301 config SYS_SUPPORTS_1000HZ
2304 config SYS_SUPPORTS_1024HZ
2307 config SYS_SUPPORTS_ARBIT_HZ
2309 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2310 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2311 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2312 !SYS_SUPPORTS_1024HZ
2317 default 100 if HZ_100
2318 default 128 if HZ_128
2319 default 250 if HZ_250
2320 default 256 if HZ_256
2321 default 1000 if HZ_1000
2322 default 1024 if HZ_1024
2324 source "kernel/Kconfig.preempt"
2327 bool "Kexec system call"
2329 kexec is a system call that implements the ability to shutdown your
2330 current kernel, and to start another kernel. It is like a reboot
2331 but it is independent of the system firmware. And like a reboot
2332 you can start any kernel with it, not just Linux.
2334 The name comes from the similarity to the exec system call.
2336 It is an ongoing process to be certain the hardware in a machine
2337 is properly shutdown, so do not be surprised if this code does not
2338 initially work for you. It may help to enable device hotplugging
2339 support. As of this writing the exact hardware interface is
2340 strongly in flux, so no good recommendation can be made.
2343 bool "Kernel crash dumps"
2345 Generate crash dump after being started by kexec.
2346 This should be normally only set in special crash dump kernels
2347 which are loaded in the main kernel with kexec-tools into
2348 a specially reserved region and then later executed after
2349 a crash by kdump/kexec. The crash dump kernel must be compiled
2350 to a memory address not used by the main kernel or firmware using
2353 config PHYSICAL_START
2354 hex "Physical address where the kernel is loaded"
2355 default "0xffffffff84000000" if 64BIT
2356 default "0x84000000" if 32BIT
2357 depends on CRASH_DUMP
2359 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2360 If you plan to use kernel for capturing the crash dump change
2361 this value to start of the reserved region (the "X" value as
2362 specified in the "crashkernel=YM@XM" command line boot parameter
2363 passed to the panic-ed kernel).
2366 bool "Enable seccomp to safely compute untrusted bytecode"
2370 This kernel feature is useful for number crunching applications
2371 that may need to compute untrusted bytecode during their
2372 execution. By using pipes or other transports made available to
2373 the process as file descriptors supporting the read/write
2374 syscalls, it's possible to isolate those applications in
2375 their own address space using seccomp. Once seccomp is
2376 enabled via /proc/<pid>/seccomp, it cannot be disabled
2377 and the task is only allowed to execute a few safe syscalls
2378 defined by each seccomp mode.
2380 If unsure, say Y. Only embedded should say N here.
2385 select OF_EARLY_FLATTREE
2390 config LOCKDEP_SUPPORT
2394 config STACKTRACE_SUPPORT
2398 source "init/Kconfig"
2400 source "kernel/Kconfig.freezer"
2402 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2410 bool "Support for PCI controller"
2411 depends on HW_HAS_PCI
2413 select GENERIC_PCI_IOMAP
2414 select NO_GENERIC_PCI_IOPORT_MAP
2416 Find out whether you have a PCI motherboard. PCI is the name of a
2417 bus system, i.e. the way the CPU talks to the other stuff inside
2418 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2424 source "drivers/pci/Kconfig"
2426 source "drivers/pci/pcie/Kconfig"
2429 # ISA support is now enabled via select. Too many systems still have the one
2430 # or other ISA chip on the board that users don't know about so don't expect
2431 # users to choose the right thing ...
2438 depends on HW_HAS_EISA
2440 select GENERIC_ISA_DMA
2442 The Extended Industry Standard Architecture (EISA) bus was
2443 developed as an open alternative to the IBM MicroChannel bus.
2445 The EISA bus provided some of the features of the IBM MicroChannel
2446 bus while maintaining backward compatibility with cards made for
2447 the older ISA bus. The EISA bus saw limited use between 1988 and
2448 1995 when it was made obsolete by the PCI bus.
2450 Say Y here if you are building a kernel for an EISA-based machine.
2454 source "drivers/eisa/Kconfig"
2457 bool "TURBOchannel support"
2458 depends on MACH_DECSTATION
2460 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2461 processors. TURBOchannel programming specifications are available
2463 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2465 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2466 Linux driver support status is documented at:
2467 <http://www.linux-mips.org/wiki/DECstation>
2477 select MIPS_EXTERNAL_TIMER
2482 source "drivers/pcmcia/Kconfig"
2484 source "drivers/pci/hotplug/Kconfig"
2487 bool "RapidIO support"
2491 If you say Y here, the kernel will include drivers and
2492 infrastructure code to support RapidIO interconnect devices.
2494 source "drivers/rapidio/Kconfig"
2498 menu "Executable file formats"
2500 source "fs/Kconfig.binfmt"
2505 config MIPS32_COMPAT
2506 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2509 Select this option if you want Linux/MIPS 32-bit binary
2510 compatibility. Since all software available for Linux/MIPS is
2511 currently 32-bit you should say Y here.
2515 depends on MIPS32_COMPAT
2516 select ARCH_WANT_OLD_COMPAT_IPC
2519 config SYSVIPC_COMPAT
2521 depends on COMPAT && SYSVIPC
2525 bool "Kernel support for o32 binaries"
2526 depends on MIPS32_COMPAT
2528 Select this option if you want to run o32 binaries. These are pure
2529 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2530 existing binaries are in this format.
2535 bool "Kernel support for n32 binaries"
2536 depends on MIPS32_COMPAT
2538 Select this option if you want to run n32 binaries. These are
2539 64-bit binaries using 32-bit quantities for addressing and certain
2540 data that would normally be 64-bit. They are used in special
2547 default y if MIPS32_O32 || MIPS32_N32
2551 menu "Power management options"
2553 config ARCH_HIBERNATION_POSSIBLE
2555 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2557 config ARCH_SUSPEND_POSSIBLE
2559 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2561 source "kernel/power/Kconfig"
2565 source "arch/mips/kernel/cpufreq/Kconfig"
2567 source "net/Kconfig"
2569 source "drivers/Kconfig"
2571 source "drivers/firmware/Kconfig"
2575 source "arch/mips/Kconfig.debug"
2577 source "security/Kconfig"
2579 source "crypto/Kconfig"
2581 source "lib/Kconfig"