4 select HAVE_GENERIC_DMA_COHERENT
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select HAVE_VIRT_TO_BUS
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"
340 select CPU_MIPSR2_IRQ_VI
341 select CPU_MIPSR2_IRQ_EI
342 select DMA_NONCOHERENT
345 select MIPS_BOARDS_GEN
346 select MIPS_CPU_SCACHE
348 select SYS_HAS_CPU_MIPS32_R1
349 select SYS_HAS_CPU_MIPS32_R2
350 select SYS_HAS_CPU_MIPS64_R1
351 select SYS_HAS_EARLY_PRINTK
352 select SYS_SUPPORTS_32BIT_KERNEL
353 select SYS_SUPPORTS_64BIT_KERNEL
354 select SYS_SUPPORTS_BIG_ENDIAN
355 select SYS_SUPPORTS_LITTLE_ENDIAN
356 select SYS_SUPPORTS_SMARTMIPS
357 select USB_ARCH_HAS_EHCI
358 select USB_EHCI_BIG_ENDIAN_DESC
359 select USB_EHCI_BIG_ENDIAN_MMIO
362 This enables support for the MIPS Technologies SEAD3 evaluation
366 bool "NEC EMMA2RH Mark-eins board"
370 This enables support for the NEC Electronics Mark-eins boards.
373 bool "NEC VR4100 series based machines"
376 select SYS_HAS_CPU_VR41XX
377 select ARCH_REQUIRE_GPIOLIB
380 bool "NXP STB220 board"
383 Support for NXP Semiconductors STB220 Development Board.
390 Support for NXP Semiconductors STB225 Development Board.
393 bool "PMC-Sierra MSP chipsets"
396 select DMA_NONCOHERENT
398 select NO_EXCEPT_FILL
400 select SYS_HAS_CPU_MIPS32_R1
401 select SYS_HAS_CPU_MIPS32_R2
402 select SYS_SUPPORTS_32BIT_KERNEL
403 select SYS_SUPPORTS_BIG_ENDIAN
406 select SERIAL_8250_CONSOLE
408 This adds support for the PMC-Sierra family of Multi-Service
409 Processor System-On-A-Chips. These parts include a number
410 of integrated peripherals, interfaces and DSPs in addition to
411 a variety of MIPS cores.
417 select CPU_MIPSR2_IRQ_VI
418 select CPU_MIPSR2_IRQ_EI
420 select DMA_NONCOHERENT
422 select SYS_HAS_EARLY_PRINTK
423 select SYS_HAS_CPU_MIPS32_R2
424 select SYS_SUPPORTS_32BIT_KERNEL
425 select SYS_SUPPORTS_BIG_ENDIAN
426 select SYS_SUPPORTS_HIGHMEM
427 select USB_OHCI_LITTLE_ENDIAN
429 This enables support for the Cisco PowerTV Platform.
432 bool "Ralink based machines"
436 select DMA_NONCOHERENT
439 select SYS_HAS_CPU_MIPS32_R1
440 select SYS_HAS_CPU_MIPS32_R2
441 select SYS_SUPPORTS_32BIT_KERNEL
442 select SYS_SUPPORTS_LITTLE_ENDIAN
443 select SYS_HAS_EARLY_PRINTK
444 select HAVE_MACH_CLKDEV
448 bool "SGI IP22 (Indy/Indigo2)"
454 select DEFAULT_SGI_PARTITION
455 select DMA_NONCOHERENT
459 select IP22_CPU_SCACHE
461 select GENERIC_ISA_DMA_SUPPORT_BROKEN
463 select SGI_HAS_INDYDOG
469 select SYS_HAS_CPU_R4X00
470 select SYS_HAS_CPU_R5000
472 # Disable EARLY_PRINTK for now since it leads to overwritten prom
473 # memory during early boot on some machines.
475 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
476 # for a more details discussion
478 # select SYS_HAS_EARLY_PRINTK
479 select SYS_SUPPORTS_32BIT_KERNEL
480 select SYS_SUPPORTS_64BIT_KERNEL
481 select SYS_SUPPORTS_BIG_ENDIAN
483 This are the SGI Indy, Challenge S and Indigo2, as well as certain
484 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
485 that runs on these, say Y here.
488 bool "SGI IP27 (Origin200/2000)"
492 select DEFAULT_SGI_PARTITION
494 select SYS_HAS_EARLY_PRINTK
496 select NR_CPUS_DEFAULT_64
497 select SYS_HAS_CPU_R10000
498 select SYS_SUPPORTS_64BIT_KERNEL
499 select SYS_SUPPORTS_BIG_ENDIAN
500 select SYS_SUPPORTS_NUMA
501 select SYS_SUPPORTS_SMP
503 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
504 workstations. To compile a Linux kernel that runs on these, say Y
508 bool "SGI IP28 (Indigo2 R10k)"
514 select DEFAULT_SGI_PARTITION
515 select DMA_NONCOHERENT
516 select GENERIC_ISA_DMA_SUPPORT_BROKEN
522 select SGI_HAS_INDYDOG
528 select SYS_HAS_CPU_R10000
530 # Disable EARLY_PRINTK for now since it leads to overwritten prom
531 # memory during early boot on some machines.
533 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
534 # for a more details discussion
536 # select SYS_HAS_EARLY_PRINTK
537 select SYS_SUPPORTS_64BIT_KERNEL
538 select SYS_SUPPORTS_BIG_ENDIAN
540 This is the SGI Indigo2 with R10000 processor. To compile a Linux
541 kernel that runs on these, say Y here.
550 select DMA_NONCOHERENT
553 select R5000_CPU_SCACHE
554 select RM7000_CPU_SCACHE
555 select SYS_HAS_CPU_R5000
556 select SYS_HAS_CPU_R10000 if BROKEN
557 select SYS_HAS_CPU_RM7000
558 select SYS_HAS_CPU_NEVADA
559 select SYS_SUPPORTS_64BIT_KERNEL
560 select SYS_SUPPORTS_BIG_ENDIAN
562 If you want this kernel to run on SGI O2 workstation, say Y here.
565 bool "Sibyte BCM91120C-CRhine"
568 select SIBYTE_BCM1120
570 select SYS_HAS_CPU_SB1
571 select SYS_SUPPORTS_BIG_ENDIAN
572 select SYS_SUPPORTS_LITTLE_ENDIAN
575 bool "Sibyte BCM91120x-Carmel"
578 select SIBYTE_BCM1120
580 select SYS_HAS_CPU_SB1
581 select SYS_SUPPORTS_BIG_ENDIAN
582 select SYS_SUPPORTS_LITTLE_ENDIAN
585 bool "Sibyte BCM91125C-CRhone"
588 select SIBYTE_BCM1125
590 select SYS_HAS_CPU_SB1
591 select SYS_SUPPORTS_BIG_ENDIAN
592 select SYS_SUPPORTS_HIGHMEM
593 select SYS_SUPPORTS_LITTLE_ENDIAN
596 bool "Sibyte BCM91125E-Rhone"
599 select SIBYTE_BCM1125H
601 select SYS_HAS_CPU_SB1
602 select SYS_SUPPORTS_BIG_ENDIAN
603 select SYS_SUPPORTS_LITTLE_ENDIAN
606 bool "Sibyte BCM91250A-SWARM"
609 select HAVE_PATA_PLATFORM
610 select NR_CPUS_DEFAULT_2
613 select SYS_HAS_CPU_SB1
614 select SYS_SUPPORTS_BIG_ENDIAN
615 select SYS_SUPPORTS_HIGHMEM
616 select SYS_SUPPORTS_LITTLE_ENDIAN
617 select ZONE_DMA32 if 64BIT
619 config SIBYTE_LITTLESUR
620 bool "Sibyte BCM91250C2-LittleSur"
623 select HAVE_PATA_PLATFORM
624 select NR_CPUS_DEFAULT_2
627 select SYS_HAS_CPU_SB1
628 select SYS_SUPPORTS_BIG_ENDIAN
629 select SYS_SUPPORTS_HIGHMEM
630 select SYS_SUPPORTS_LITTLE_ENDIAN
632 config SIBYTE_SENTOSA
633 bool "Sibyte BCM91250E-Sentosa"
636 select NR_CPUS_DEFAULT_2
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_LITTLE_ENDIAN
644 bool "Sibyte BCM91480B-BigSur"
647 select NR_CPUS_DEFAULT_4
648 select SIBYTE_BCM1x80
650 select SYS_HAS_CPU_SB1
651 select SYS_SUPPORTS_BIG_ENDIAN
652 select SYS_SUPPORTS_HIGHMEM
653 select SYS_SUPPORTS_LITTLE_ENDIAN
654 select ZONE_DMA32 if 64BIT
657 bool "SNI RM200/300/400"
658 select FW_ARC if CPU_LITTLE_ENDIAN
659 select FW_ARC32 if CPU_LITTLE_ENDIAN
660 select SNIPROM if CPU_BIG_ENDIAN
661 select ARCH_MAY_HAVE_PC_FDC
665 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
666 select DMA_NONCOHERENT
667 select GENERIC_ISA_DMA
668 select HAVE_PCSPKR_PLATFORM
675 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
676 select SYS_HAS_CPU_R4X00
677 select SYS_HAS_CPU_R5000
678 select SYS_HAS_CPU_R10000
679 select R5000_CPU_SCACHE
680 select SYS_HAS_EARLY_PRINTK
681 select SYS_SUPPORTS_32BIT_KERNEL
682 select SYS_SUPPORTS_64BIT_KERNEL
683 select SYS_SUPPORTS_BIG_ENDIAN
684 select SYS_SUPPORTS_HIGHMEM
685 select SYS_SUPPORTS_LITTLE_ENDIAN
687 The SNI RM200/300/400 are MIPS-based machines manufactured by
688 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
689 Technology and now in turn merged with Fujitsu. Say Y here to
690 support this machine type.
693 bool "Toshiba TX39 series based machines"
696 bool "Toshiba TX49 series based machines"
698 config MIKROTIK_RB532
699 bool "Mikrotik RB532 boards"
702 select DMA_NONCOHERENT
705 select SYS_HAS_CPU_MIPS32_R1
706 select SYS_SUPPORTS_32BIT_KERNEL
707 select SYS_SUPPORTS_LITTLE_ENDIAN
710 select ARCH_REQUIRE_GPIOLIB
712 Support the Mikrotik(tm) RouterBoard 532 series,
713 based on the IDT RC32434 SoC.
716 bool "Wind River PPMC board"
721 select DMA_NONCOHERENT
723 select PCI_GT64XXX_PCI0
725 select SYS_HAS_CPU_MIPS32_R1
726 select SYS_HAS_CPU_MIPS32_R2
727 select SYS_HAS_CPU_MIPS64_R1
728 select SYS_HAS_CPU_NEVADA
729 select SYS_HAS_CPU_RM7000
730 select SYS_SUPPORTS_32BIT_KERNEL
731 select SYS_SUPPORTS_64BIT_KERNEL
732 select SYS_SUPPORTS_BIG_ENDIAN
733 select SYS_SUPPORTS_LITTLE_ENDIAN
735 This enables support for the Wind River MIPS32 4KC PPMC evaluation
736 board, which is based on GT64120 bridge chip.
738 config CAVIUM_OCTEON_SIMULATOR
739 bool "Cavium Networks Octeon Simulator"
741 select 64BIT_PHYS_ADDR
743 select SYS_SUPPORTS_64BIT_KERNEL
744 select SYS_SUPPORTS_BIG_ENDIAN
745 select SYS_SUPPORTS_HOTPLUG_CPU
746 select SYS_HAS_CPU_CAVIUM_OCTEON
749 The Octeon simulator is software performance model of the Cavium
750 Octeon Processor. It supports simulating Octeon processors on x86
753 config CAVIUM_OCTEON_REFERENCE_BOARD
754 bool "Cavium Networks Octeon reference board"
756 select 64BIT_PHYS_ADDR
758 select SYS_SUPPORTS_64BIT_KERNEL
759 select SYS_SUPPORTS_BIG_ENDIAN
761 select SYS_SUPPORTS_HOTPLUG_CPU
762 select SYS_HAS_EARLY_PRINTK
763 select SYS_HAS_CPU_CAVIUM_OCTEON
766 select ARCH_SUPPORTS_MSI
768 select USB_ARCH_HAS_OHCI
769 select USB_ARCH_HAS_EHCI
772 This option supports all of the Octeon reference boards from Cavium
773 Networks. It builds a kernel that dynamically determines the Octeon
774 CPU type and supports all known board reference implementations.
775 Some of the supported boards are:
782 Say Y here for most Octeon reference boards.
785 bool "Netlogic XLR/XLS based systems"
788 select SYS_HAS_CPU_XLR
789 select SYS_SUPPORTS_SMP
792 select SYS_SUPPORTS_32BIT_KERNEL
793 select SYS_SUPPORTS_64BIT_KERNEL
794 select 64BIT_PHYS_ADDR
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
798 select NR_CPUS_DEFAULT_32
802 select ARCH_SUPPORTS_MSI
803 select ZONE_DMA32 if 64BIT
805 select SYS_HAS_EARLY_PRINTK
806 select USB_ARCH_HAS_OHCI if USB_SUPPORT
807 select USB_ARCH_HAS_EHCI if USB_SUPPORT
809 Support for systems based on Netlogic XLR and XLS processors.
810 Say Y here if you have a XLR or XLS based board.
813 bool "Netlogic XLP based systems"
816 select SYS_HAS_CPU_XLP
817 select SYS_SUPPORTS_SMP
819 select SYS_SUPPORTS_32BIT_KERNEL
820 select SYS_SUPPORTS_64BIT_KERNEL
821 select 64BIT_PHYS_ADDR
822 select SYS_SUPPORTS_BIG_ENDIAN
823 select SYS_SUPPORTS_LITTLE_ENDIAN
824 select SYS_SUPPORTS_HIGHMEM
826 select NR_CPUS_DEFAULT_32
830 select ZONE_DMA32 if 64BIT
832 select SYS_HAS_EARLY_PRINTK
835 This board is based on Netlogic XLP Processor.
836 Say Y here if you have a XLP based board.
840 source "arch/mips/alchemy/Kconfig"
841 source "arch/mips/ath79/Kconfig"
842 source "arch/mips/bcm47xx/Kconfig"
843 source "arch/mips/bcm63xx/Kconfig"
844 source "arch/mips/jazz/Kconfig"
845 source "arch/mips/jz4740/Kconfig"
846 source "arch/mips/lantiq/Kconfig"
847 source "arch/mips/lasat/Kconfig"
848 source "arch/mips/pmcs-msp71xx/Kconfig"
849 source "arch/mips/powertv/Kconfig"
850 source "arch/mips/ralink/Kconfig"
851 source "arch/mips/sgi-ip27/Kconfig"
852 source "arch/mips/sibyte/Kconfig"
853 source "arch/mips/txx9/Kconfig"
854 source "arch/mips/vr41xx/Kconfig"
855 source "arch/mips/cavium-octeon/Kconfig"
856 source "arch/mips/loongson/Kconfig"
857 source "arch/mips/loongson1/Kconfig"
858 source "arch/mips/netlogic/Kconfig"
862 config RWSEM_GENERIC_SPINLOCK
866 config RWSEM_XCHGADD_ALGORITHM
869 config ARCH_HAS_ILOG2_U32
873 config ARCH_HAS_ILOG2_U64
877 config GENERIC_HWEIGHT
881 config GENERIC_CALIBRATE_DELAY
885 config SCHED_OMIT_FRAME_POINTER
890 # Select some configuration options automatically based on user selections.
895 config ARCH_MAY_HAVE_PC_FDC
939 select ARCH_REQUIRE_GPIOLIB
945 config ARCH_DMA_ADDR_T_64BIT
946 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
951 config DMA_NONCOHERENT
953 select NEED_DMA_MAP_STATE
955 config NEED_DMA_MAP_STATE
958 config SYS_HAS_EARLY_PRINTK
962 bool "Support for hot-pluggable CPUs"
963 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
965 Say Y here to allow turning CPUs off and on. CPUs can be
966 controlled through /sys/devices/system/cpu.
967 (Note: power management support will enable this option
968 automatically on SMP systems. )
969 Say N if you want to disable CPU hotplug.
971 config SYS_SUPPORTS_HOTPLUG_CPU
986 config MIPS_DISABLE_OBSOLETE_IDE
998 config GENERIC_ISA_DMA
1000 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1003 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1005 select GENERIC_ISA_DMA
1013 config HOLES_IN_ZONE
1017 # Endianness selection. Sufficiently obscure so many users don't know what to
1018 # answer,so we try hard to limit the available choices. Also the use of a
1019 # choice statement should be more obvious to the user.
1022 prompt "Endianness selection"
1024 Some MIPS machines can be configured for either little or big endian
1025 byte order. These modes require different kernels and a different
1026 Linux distribution. In general there is one preferred byteorder for a
1027 particular system but some systems are just as commonly used in the
1028 one or the other endianness.
1030 config CPU_BIG_ENDIAN
1032 depends on SYS_SUPPORTS_BIG_ENDIAN
1034 config CPU_LITTLE_ENDIAN
1035 bool "Little endian"
1036 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1044 config SYS_SUPPORTS_APM_EMULATION
1047 config SYS_SUPPORTS_BIG_ENDIAN
1050 config SYS_SUPPORTS_LITTLE_ENDIAN
1053 config SYS_SUPPORTS_HUGETLBFS
1055 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1058 config MIPS_HUGE_TLB_SUPPORT
1059 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1082 config MIPS_BOARDS_GEN
1085 config PCI_GT64XXX_PCI0
1088 config NO_EXCEPT_FILL
1095 select DMA_NONCOHERENT
1097 select SWAP_IO_SPACE
1098 select SYS_HAS_CPU_R5500
1099 select SYS_SUPPORTS_32BIT_KERNEL
1100 select SYS_SUPPORTS_64BIT_KERNEL
1101 select SYS_SUPPORTS_BIG_ENDIAN
1108 select DMA_NONCOHERENT
1109 select SYS_HAS_CPU_MIPS32_R2
1110 select SYS_SUPPORTS_32BIT_KERNEL
1111 select SYS_SUPPORTS_LITTLE_ENDIAN
1112 select SYS_SUPPORTS_BIG_ENDIAN
1114 select CPU_MIPSR2_IRQ_VI
1120 config SWAP_IO_SPACE
1123 config SGI_HAS_INDYDOG
1135 config SGI_HAS_ZILOG
1138 config SGI_HAS_I8042
1141 config DEFAULT_SGI_PARTITION
1153 config MIPS_L1_CACHE_SHIFT
1155 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1156 default "6" if MIPS_CPU_SCACHE
1157 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1160 config HAVE_STD_PC_SERIAL_PORT
1164 bool "ARC console support"
1165 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1169 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1174 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1183 menu "CPU selection"
1189 config CPU_LOONGSON2E
1191 depends on SYS_HAS_CPU_LOONGSON2E
1192 select CPU_LOONGSON2
1194 The Loongson 2E processor implements the MIPS III instruction set
1195 with many extensions.
1197 It has an internal FPGA northbridge, which is compatible to
1200 config CPU_LOONGSON2F
1202 depends on SYS_HAS_CPU_LOONGSON2F
1203 select CPU_LOONGSON2
1205 select ARCH_REQUIRE_GPIOLIB
1207 The Loongson 2F processor implements the MIPS III instruction set
1208 with many extensions.
1210 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1211 have a similar programming interface with FPGA northbridge used in
1214 config CPU_LOONGSON1B
1216 depends on SYS_HAS_CPU_LOONGSON1B
1217 select CPU_LOONGSON1
1219 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1220 release 2 instruction set.
1222 config CPU_MIPS32_R1
1223 bool "MIPS32 Release 1"
1224 depends on SYS_HAS_CPU_MIPS32_R1
1225 select CPU_HAS_PREFETCH
1226 select CPU_SUPPORTS_32BIT_KERNEL
1227 select CPU_SUPPORTS_HIGHMEM
1229 Choose this option to build a kernel for release 1 or later of the
1230 MIPS32 architecture. Most modern embedded systems with a 32-bit
1231 MIPS processor are based on a MIPS32 processor. If you know the
1232 specific type of processor in your system, choose those that one
1233 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1234 Release 2 of the MIPS32 architecture is available since several
1235 years so chances are you even have a MIPS32 Release 2 processor
1236 in which case you should choose CPU_MIPS32_R2 instead for better
1239 config CPU_MIPS32_R2
1240 bool "MIPS32 Release 2"
1241 depends on SYS_HAS_CPU_MIPS32_R2
1242 select CPU_HAS_PREFETCH
1243 select CPU_SUPPORTS_32BIT_KERNEL
1244 select CPU_SUPPORTS_HIGHMEM
1247 Choose this option to build a kernel for release 2 or later of the
1248 MIPS32 architecture. Most modern embedded systems with a 32-bit
1249 MIPS processor are based on a MIPS32 processor. If you know the
1250 specific type of processor in your system, choose those that one
1251 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1253 config CPU_MIPS64_R1
1254 bool "MIPS64 Release 1"
1255 depends on SYS_HAS_CPU_MIPS64_R1
1256 select CPU_HAS_PREFETCH
1257 select CPU_SUPPORTS_32BIT_KERNEL
1258 select CPU_SUPPORTS_64BIT_KERNEL
1259 select CPU_SUPPORTS_HIGHMEM
1260 select CPU_SUPPORTS_HUGEPAGES
1262 Choose this option to build a kernel for release 1 or later of the
1263 MIPS64 architecture. Many modern embedded systems with a 64-bit
1264 MIPS processor are based on a MIPS64 processor. If you know the
1265 specific type of processor in your system, choose those that one
1266 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1267 Release 2 of the MIPS64 architecture is available since several
1268 years so chances are you even have a MIPS64 Release 2 processor
1269 in which case you should choose CPU_MIPS64_R2 instead for better
1272 config CPU_MIPS64_R2
1273 bool "MIPS64 Release 2"
1274 depends on SYS_HAS_CPU_MIPS64_R2
1275 select CPU_HAS_PREFETCH
1276 select CPU_SUPPORTS_32BIT_KERNEL
1277 select CPU_SUPPORTS_64BIT_KERNEL
1278 select CPU_SUPPORTS_HIGHMEM
1279 select CPU_SUPPORTS_HUGEPAGES
1281 Choose this option to build a kernel for release 2 or later of the
1282 MIPS64 architecture. Many modern embedded systems with a 64-bit
1283 MIPS processor are based on a MIPS64 processor. If you know the
1284 specific type of processor in your system, choose those that one
1285 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1289 depends on SYS_HAS_CPU_R3000
1291 select CPU_SUPPORTS_32BIT_KERNEL
1292 select CPU_SUPPORTS_HIGHMEM
1294 Please make sure to pick the right CPU type. Linux/MIPS is not
1295 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1296 *not* work on R4000 machines and vice versa. However, since most
1297 of the supported machines have an R4000 (or similar) CPU, R4x00
1298 might be a safe bet. If the resulting kernel does not work,
1299 try to recompile with R3000.
1303 depends on SYS_HAS_CPU_TX39XX
1304 select CPU_SUPPORTS_32BIT_KERNEL
1308 depends on SYS_HAS_CPU_VR41XX
1309 select CPU_SUPPORTS_32BIT_KERNEL
1310 select CPU_SUPPORTS_64BIT_KERNEL
1312 The options selects support for the NEC VR4100 series of processors.
1313 Only choose this option if you have one of these processors as a
1314 kernel built with this option will not run on any other type of
1315 processor or vice versa.
1319 depends on SYS_HAS_CPU_R4300
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1323 MIPS Technologies R4300-series processors.
1327 depends on SYS_HAS_CPU_R4X00
1328 select CPU_SUPPORTS_32BIT_KERNEL
1329 select CPU_SUPPORTS_64BIT_KERNEL
1330 select CPU_SUPPORTS_HUGEPAGES
1332 MIPS Technologies R4000-series processors other than 4300, including
1333 the R4000, R4400, R4600, and 4700.
1337 depends on SYS_HAS_CPU_TX49XX
1338 select CPU_HAS_PREFETCH
1339 select CPU_SUPPORTS_32BIT_KERNEL
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HUGEPAGES
1345 depends on SYS_HAS_CPU_R5000
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 select CPU_SUPPORTS_HUGEPAGES
1350 MIPS Technologies R5000-series processors other than the Nevada.
1354 depends on SYS_HAS_CPU_R5432
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
1357 select CPU_SUPPORTS_HUGEPAGES
1361 depends on SYS_HAS_CPU_R5500
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364 select CPU_SUPPORTS_HUGEPAGES
1366 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1371 depends on SYS_HAS_CPU_R6000
1372 select CPU_SUPPORTS_32BIT_KERNEL
1374 MIPS Technologies R6000 and R6000A series processors. Note these
1375 processors are extremely rare and the support for them is incomplete.
1379 depends on SYS_HAS_CPU_NEVADA
1380 select CPU_SUPPORTS_32BIT_KERNEL
1381 select CPU_SUPPORTS_64BIT_KERNEL
1382 select CPU_SUPPORTS_HUGEPAGES
1384 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1388 depends on SYS_HAS_CPU_R8000
1389 select CPU_HAS_PREFETCH
1390 select CPU_SUPPORTS_64BIT_KERNEL
1392 MIPS Technologies R8000 processors. Note these processors are
1393 uncommon and the support for them is incomplete.
1397 depends on SYS_HAS_CPU_R10000
1398 select CPU_HAS_PREFETCH
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HIGHMEM
1402 select CPU_SUPPORTS_HUGEPAGES
1404 MIPS Technologies R10000-series processors.
1408 depends on SYS_HAS_CPU_RM7000
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 select CPU_SUPPORTS_64BIT_KERNEL
1412 select CPU_SUPPORTS_HIGHMEM
1413 select CPU_SUPPORTS_HUGEPAGES
1417 depends on SYS_HAS_CPU_SB1
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 select CPU_SUPPORTS_HUGEPAGES
1422 select WEAK_ORDERING
1424 config CPU_CAVIUM_OCTEON
1425 bool "Cavium Octeon processor"
1426 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1427 select ARCH_SPARSEMEM_ENABLE
1428 select CPU_HAS_PREFETCH
1429 select CPU_SUPPORTS_64BIT_KERNEL
1430 select SYS_SUPPORTS_SMP
1431 select NR_CPUS_DEFAULT_16
1432 select WEAK_ORDERING
1433 select CPU_SUPPORTS_HIGHMEM
1434 select CPU_SUPPORTS_HUGEPAGES
1438 The Cavium Octeon processor is a highly integrated chip containing
1439 many ethernet hardware widgets for networking tasks. The processor
1440 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1441 Full details can be found at http://www.caviumnetworks.com.
1443 config CPU_BMIPS3300
1445 depends on SYS_HAS_CPU_BMIPS3300
1448 Broadcom BMIPS3300 processors.
1450 config CPU_BMIPS4350
1452 depends on SYS_HAS_CPU_BMIPS4350
1454 select SYS_SUPPORTS_SMP
1455 select SYS_SUPPORTS_HOTPLUG_CPU
1457 Broadcom BMIPS4350 ("VIPER") processors.
1459 config CPU_BMIPS4380
1461 depends on SYS_HAS_CPU_BMIPS4380
1463 select SYS_SUPPORTS_SMP
1464 select SYS_SUPPORTS_HOTPLUG_CPU
1466 Broadcom BMIPS4380 processors.
1468 config CPU_BMIPS5000
1470 depends on SYS_HAS_CPU_BMIPS5000
1472 select CPU_SUPPORTS_HIGHMEM
1473 select MIPS_CPU_SCACHE
1474 select SYS_SUPPORTS_SMP
1475 select SYS_SUPPORTS_HOTPLUG_CPU
1477 Broadcom BMIPS5000 processors.
1480 bool "Netlogic XLR SoC"
1481 depends on SYS_HAS_CPU_XLR
1482 select CPU_SUPPORTS_32BIT_KERNEL
1483 select CPU_SUPPORTS_64BIT_KERNEL
1484 select CPU_SUPPORTS_HIGHMEM
1485 select CPU_SUPPORTS_HUGEPAGES
1486 select WEAK_ORDERING
1487 select WEAK_REORDERING_BEYOND_LLSC
1489 Netlogic Microsystems XLR/XLS processors.
1492 bool "Netlogic XLP SoC"
1493 depends on SYS_HAS_CPU_XLP
1494 select CPU_SUPPORTS_32BIT_KERNEL
1495 select CPU_SUPPORTS_64BIT_KERNEL
1496 select CPU_SUPPORTS_HIGHMEM
1498 select WEAK_ORDERING
1499 select WEAK_REORDERING_BEYOND_LLSC
1500 select CPU_HAS_PREFETCH
1503 Netlogic Microsystems XLP processors.
1507 config CPU_NOP_WORKAROUNDS
1510 config CPU_JUMP_WORKAROUNDS
1513 config CPU_LOONGSON2F_WORKAROUNDS
1514 bool "Loongson 2F Workarounds"
1516 select CPU_NOP_WORKAROUNDS
1517 select CPU_JUMP_WORKAROUNDS
1519 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1520 require workarounds. Without workarounds the system may hang
1521 unexpectedly. For more information please refer to the gas
1522 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1524 Loongson 2F03 and later have fixed these issues and no workarounds
1525 are needed. The workarounds have no significant side effect on them
1526 but may decrease the performance of the system so this option should
1527 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1530 If unsure, please say Y.
1531 endif # CPU_LOONGSON2F
1533 config SYS_SUPPORTS_ZBOOT
1535 select HAVE_KERNEL_GZIP
1536 select HAVE_KERNEL_BZIP2
1537 select HAVE_KERNEL_LZMA
1538 select HAVE_KERNEL_LZO
1540 config SYS_SUPPORTS_ZBOOT_UART16550
1542 select SYS_SUPPORTS_ZBOOT
1544 config CPU_LOONGSON2
1546 select CPU_SUPPORTS_32BIT_KERNEL
1547 select CPU_SUPPORTS_64BIT_KERNEL
1548 select CPU_SUPPORTS_HIGHMEM
1549 select CPU_SUPPORTS_HUGEPAGES
1551 config CPU_LOONGSON1
1555 select CPU_HAS_PREFETCH
1556 select CPU_SUPPORTS_32BIT_KERNEL
1557 select CPU_SUPPORTS_HIGHMEM
1562 select CPU_SUPPORTS_32BIT_KERNEL
1563 select DMA_NONCOHERENT
1565 select SWAP_IO_SPACE
1566 select WEAK_ORDERING
1568 config SYS_HAS_CPU_LOONGSON2E
1571 config SYS_HAS_CPU_LOONGSON2F
1573 select CPU_SUPPORTS_CPUFREQ
1574 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1575 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1577 config SYS_HAS_CPU_LOONGSON1B
1580 config SYS_HAS_CPU_MIPS32_R1
1583 config SYS_HAS_CPU_MIPS32_R2
1586 config SYS_HAS_CPU_MIPS64_R1
1589 config SYS_HAS_CPU_MIPS64_R2
1592 config SYS_HAS_CPU_R3000
1595 config SYS_HAS_CPU_TX39XX
1598 config SYS_HAS_CPU_VR41XX
1601 config SYS_HAS_CPU_R4300
1604 config SYS_HAS_CPU_R4X00
1607 config SYS_HAS_CPU_TX49XX
1610 config SYS_HAS_CPU_R5000
1613 config SYS_HAS_CPU_R5432
1616 config SYS_HAS_CPU_R5500
1619 config SYS_HAS_CPU_R6000
1622 config SYS_HAS_CPU_NEVADA
1625 config SYS_HAS_CPU_R8000
1628 config SYS_HAS_CPU_R10000
1631 config SYS_HAS_CPU_RM7000
1634 config SYS_HAS_CPU_SB1
1637 config SYS_HAS_CPU_CAVIUM_OCTEON
1640 config SYS_HAS_CPU_BMIPS3300
1643 config SYS_HAS_CPU_BMIPS4350
1646 config SYS_HAS_CPU_BMIPS4380
1649 config SYS_HAS_CPU_BMIPS5000
1652 config SYS_HAS_CPU_XLR
1655 config SYS_HAS_CPU_XLP
1659 # CPU may reorder R->R, R->W, W->R, W->W
1660 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1662 config WEAK_ORDERING
1666 # CPU may reorder reads and writes beyond LL/SC
1667 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1669 config WEAK_REORDERING_BEYOND_LLSC
1674 # These two indicate any level of the MIPS32 and MIPS64 architecture
1678 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1682 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1685 # These two indicate the revision of the architecture, either Release 1 or Release 2
1689 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1693 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1695 config SYS_SUPPORTS_32BIT_KERNEL
1697 config SYS_SUPPORTS_64BIT_KERNEL
1699 config CPU_SUPPORTS_32BIT_KERNEL
1701 config CPU_SUPPORTS_64BIT_KERNEL
1703 config CPU_SUPPORTS_CPUFREQ
1705 config CPU_SUPPORTS_ADDRWINCFG
1707 config CPU_SUPPORTS_HUGEPAGES
1709 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1711 config MIPS_PGD_C0_CONTEXT
1713 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1716 # Set to y for ptrace access to watch registers.
1718 config HARDWARE_WATCHPOINTS
1720 default y if CPU_MIPSR1 || CPU_MIPSR2
1725 prompt "Kernel code model"
1727 You should only select this option if you have a workload that
1728 actually benefits from 64-bit processing or if your machine has
1729 large memory. You will only be presented a single option in this
1730 menu if your system does not support both 32-bit and 64-bit kernels.
1733 bool "32-bit kernel"
1734 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1737 Select this option if you want to build a 32-bit kernel.
1739 bool "64-bit kernel"
1740 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1741 select HAVE_SYSCALL_WRAPPERS
1743 Select this option if you want to build a 64-bit kernel.
1748 bool "KVM Guest Kernel"
1750 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1752 config KVM_HOST_FREQ
1753 int "KVM Host Processor Frequency (MHz)"
1754 depends on KVM_GUEST
1757 Select this option if building a guest kernel for KVM to skip
1758 RTC emulation when determining guest CPU Frequency. Instead, the guest
1759 processor frequency is automatically derived from the host frequency.
1762 prompt "Kernel page size"
1763 default PAGE_SIZE_4KB
1765 config PAGE_SIZE_4KB
1767 depends on !CPU_LOONGSON2
1769 This option select the standard 4kB Linux page size. On some
1770 R3000-family processors this is the only available page size. Using
1771 4kB page size will minimize memory consumption and is therefore
1772 recommended for low memory systems.
1774 config PAGE_SIZE_8KB
1776 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1778 Using 8kB page size will result in higher performance kernel at
1779 the price of higher memory consumption. This option is available
1780 only on R8000 and cnMIPS processors. Note that you will need a
1781 suitable Linux distribution to support this.
1783 config PAGE_SIZE_16KB
1785 depends on !CPU_R3000 && !CPU_TX39XX
1787 Using 16kB page size will result in higher performance kernel at
1788 the price of higher memory consumption. This option is available on
1789 all non-R3000 family processors. Note that you will need a suitable
1790 Linux distribution to support this.
1792 config PAGE_SIZE_32KB
1794 depends on CPU_CAVIUM_OCTEON
1796 Using 32kB page size will result in higher performance kernel at
1797 the price of higher memory consumption. This option is available
1798 only on cnMIPS cores. Note that you will need a suitable Linux
1799 distribution to support this.
1801 config PAGE_SIZE_64KB
1803 depends on !CPU_R3000 && !CPU_TX39XX
1805 Using 64kB page size will result in higher performance kernel at
1806 the price of higher memory consumption. This option is available on
1807 all non-R3000 family processor. Not that at the time of this
1808 writing this option is still high experimental.
1812 config FORCE_MAX_ZONEORDER
1813 int "Maximum zone order"
1814 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1815 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1816 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1817 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1818 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1819 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1823 The kernel memory allocator divides physically contiguous memory
1824 blocks into "zones", where each zone is a power of two number of
1825 pages. This option selects the largest power of two that the kernel
1826 keeps in the memory allocator. If you need to allocate very large
1827 blocks of physically contiguous memory, then you may need to
1828 increase this value.
1830 This config option is actually maximum order plus one. For example,
1831 a value of 11 means that the largest free memory block is 2^10 pages.
1833 The page size is not necessarily 4KB. Keep this in mind
1834 when choosing a value for this option.
1839 config IP22_CPU_SCACHE
1844 # Support for a MIPS32 / MIPS64 style S-caches
1846 config MIPS_CPU_SCACHE
1850 config R5000_CPU_SCACHE
1854 config RM7000_CPU_SCACHE
1858 config SIBYTE_DMA_PAGEOPS
1859 bool "Use DMA to clear/copy pages"
1862 Instead of using the CPU to zero and copy pages, use a Data Mover
1863 channel. These DMA channels are otherwise unused by the standard
1864 SiByte Linux port. Seems to give a small performance benefit.
1866 config CPU_HAS_PREFETCH
1869 config CPU_GENERIC_DUMP_TLB
1871 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1875 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1877 config CPU_R4K_CACHE_TLB
1879 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1882 prompt "MIPS MT options"
1884 config MIPS_MT_DISABLED
1885 bool "Disable multithreading support."
1887 Use this option if your workload can't take advantage of
1888 MIPS hardware multithreading support. On systems that don't have
1889 the option of an MT-enabled processor this option will be the only
1890 option in this menu.
1893 bool "Use 1 TC on each available VPE for SMP"
1894 depends on SYS_SUPPORTS_MULTITHREADING
1895 select CPU_MIPSR2_IRQ_VI
1896 select CPU_MIPSR2_IRQ_EI
1898 select NR_CPUS_DEFAULT_2
1900 select SYS_SUPPORTS_SCHED_SMT if SMP
1901 select SYS_SUPPORTS_SMP
1903 select MIPS_PERF_SHARED_TC_COUNTERS
1905 This is a kernel model which is known a VSMP but lately has been
1906 marketesed into SMVP.
1907 Virtual SMP uses the processor's VPEs to implement virtual
1908 processors. In currently available configuration of the 34K processor
1909 this allows for a dual processor. Both processors will share the same
1910 primary caches; each will obtain the half of the TLB for it's own
1911 exclusive use. For a layman this model can be described as similar to
1912 what Intel calls Hyperthreading.
1914 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1917 bool "SMTC: Use all TCs on all VPEs for SMP"
1918 depends on CPU_MIPS32_R2
1919 #depends on CPU_MIPS64_R2 # once there is hardware ...
1920 depends on SYS_SUPPORTS_MULTITHREADING
1921 select CPU_MIPSR2_IRQ_VI
1922 select CPU_MIPSR2_IRQ_EI
1924 select NR_CPUS_DEFAULT_8
1926 select SYS_SUPPORTS_SMP
1929 This is a kernel model which is known a SMTC or lately has been
1930 marketesed into SMVP.
1931 is presenting the available TC's of the core as processors to Linux.
1932 On currently available 34K processors this means a Linux system will
1933 see up to 5 processors. The implementation of the SMTC kernel differs
1934 significantly from VSMP and cannot efficiently coexist in the same
1935 kernel binary so the choice between VSMP and SMTC is a compile time
1938 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1946 bool "SMT (multithreading) scheduler support"
1947 depends on SYS_SUPPORTS_SCHED_SMT
1950 SMT scheduler support improves the CPU scheduler's decision making
1951 when dealing with MIPS MT enabled cores at a cost of slightly
1952 increased overhead in some places. If unsure say N here.
1954 config SYS_SUPPORTS_SCHED_SMT
1957 config SYS_SUPPORTS_MULTITHREADING
1960 config MIPS_MT_FPAFF
1961 bool "Dynamic FPU affinity for FP-intensive threads"
1963 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1965 config MIPS_VPE_LOADER
1966 bool "VPE loader support."
1967 depends on SYS_SUPPORTS_MULTITHREADING
1968 select CPU_MIPSR2_IRQ_VI
1969 select CPU_MIPSR2_IRQ_EI
1972 Includes a loader for loading an elf relocatable object
1973 onto another VPE and running it.
1975 config MIPS_MT_SMTC_IM_BACKSTOP
1976 bool "Use per-TC register bits as backstop for inhibited IM bits"
1977 depends on MIPS_MT_SMTC
1980 To support multiple TC microthreads acting as "CPUs" within
1981 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1982 during interrupt handling. To support legacy drivers and interrupt
1983 controller management code, SMTC has a "backstop" to track and
1984 if necessary restore the interrupt mask. This has some performance
1985 impact on interrupt service overhead.
1987 config MIPS_MT_SMTC_IRQAFF
1988 bool "Support IRQ affinity API"
1989 depends on MIPS_MT_SMTC
1992 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1993 for SMTC Linux kernel. Requires platform support, of which
1994 an example can be found in the MIPS kernel i8259 and Malta
1995 platform code. Adds some overhead to interrupt dispatch, and
1996 should be used only if you know what you are doing.
1998 config MIPS_VPE_LOADER_TOM
1999 bool "Load VPE program into memory hidden from linux"
2000 depends on MIPS_VPE_LOADER
2003 The loader can use memory that is present but has been hidden from
2004 Linux using the kernel command line option "mem=xxMB". It's up to
2005 you to ensure the amount you put in the option and the space your
2006 program requires is less or equal to the amount physically present.
2008 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2009 config MIPS_VPE_APSP_API
2010 bool "Enable support for AP/SP API (RTLX)"
2011 depends on MIPS_VPE_LOADER
2015 bool "MIPS CMP framework support"
2016 depends on SYS_SUPPORTS_MIPS_CMP
2018 select SYS_SUPPORTS_SMP
2019 select SYS_SUPPORTS_SCHED_SMT if SMP
2020 select WEAK_ORDERING
2023 This is a placeholder option for the GCMP work. It will need to
2024 be handled differently...
2026 config SB1_PASS_1_WORKAROUNDS
2028 depends on CPU_SB1_PASS_1
2031 config SB1_PASS_2_WORKAROUNDS
2033 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2036 config SB1_PASS_2_1_WORKAROUNDS
2038 depends on CPU_SB1 && CPU_SB1_PASS_2
2042 config 64BIT_PHYS_ADDR
2045 config ARCH_PHYS_ADDR_T_64BIT
2046 def_bool 64BIT_PHYS_ADDR
2048 config CPU_HAS_SMARTMIPS
2049 depends on SYS_SUPPORTS_SMARTMIPS
2050 bool "Support for the SmartMIPS ASE"
2052 SmartMIPS is a extension of the MIPS32 architecture aimed at
2053 increased security at both hardware and software level for
2054 smartcards. Enabling this option will allow proper use of the
2055 SmartMIPS instructions by Linux applications. However a kernel with
2056 this option will not work on a MIPS core without SmartMIPS core. If
2057 you don't know you probably don't have SmartMIPS and should say N
2067 # Vectored interrupt mode is an R2 feature
2069 config CPU_MIPSR2_IRQ_VI
2073 # Extended interrupt mode is an R2 feature
2075 config CPU_MIPSR2_IRQ_EI
2080 depends on !CPU_R3000
2086 config CPU_DADDI_WORKAROUNDS
2089 config CPU_R4000_WORKAROUNDS
2091 select CPU_R4400_WORKAROUNDS
2093 config CPU_R4400_WORKAROUNDS
2097 # - Highmem only makes sense for the 32-bit kernel.
2098 # - The current highmem code will only work properly on physically indexed
2099 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2100 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2101 # moment we protect the user and offer the highmem option only on machines
2102 # where it's known to be safe. This will not offer highmem on a few systems
2103 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2104 # indexed CPUs but we're playing safe.
2105 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2106 # know they might have memory configurations that could make use of highmem
2110 bool "High Memory Support"
2111 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2113 config CPU_SUPPORTS_HIGHMEM
2116 config SYS_SUPPORTS_HIGHMEM
2119 config SYS_SUPPORTS_SMARTMIPS
2122 config ARCH_FLATMEM_ENABLE
2124 depends on !NUMA && !CPU_LOONGSON2
2126 config ARCH_DISCONTIGMEM_ENABLE
2128 default y if SGI_IP27
2130 Say Y to support efficient handling of discontiguous physical memory,
2131 for architectures which are either NUMA (Non-Uniform Memory Access)
2132 or have huge holes in the physical address space for other reasons.
2133 See <file:Documentation/vm/numa> for more.
2135 config ARCH_SPARSEMEM_ENABLE
2137 select SPARSEMEM_STATIC
2141 depends on SYS_SUPPORTS_NUMA
2143 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2144 Access). This option improves performance on systems with more
2145 than two nodes; on two node systems it is generally better to
2146 leave it disabled; on single node systems disable this option
2149 config SYS_SUPPORTS_NUMA
2155 depends on NEED_MULTIPLE_NODES
2157 config HW_PERF_EVENTS
2158 bool "Enable hardware performance counter support for perf events"
2159 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2162 Enable hardware performance counter support for perf events. If
2163 disabled, perf events will use software events only.
2168 bool "Multi-Processing support"
2169 depends on SYS_SUPPORTS_SMP
2170 select USE_GENERIC_SMP_HELPERS
2172 This enables support for systems with more than one CPU. If you have
2173 a system with only one CPU, like most personal computers, say N. If
2174 you have a system with more than one CPU, say Y.
2176 If you say N here, the kernel will run on single and multiprocessor
2177 machines, but will use only one CPU of a multiprocessor machine. If
2178 you say Y here, the kernel will run on many, but not all,
2179 singleprocessor machines. On a singleprocessor machine, the kernel
2180 will run faster if you say N here.
2182 People using multiprocessor machines who say Y here should also say
2183 Y to "Enhanced Real Time Clock Support", below.
2185 See also the SMP-HOWTO available at
2186 <http://www.tldp.org/docs.html#howto>.
2188 If you don't know what to do here, say N.
2193 config SYS_SUPPORTS_MIPS_CMP
2196 config SYS_SUPPORTS_SMP
2199 config NR_CPUS_DEFAULT_1
2202 config NR_CPUS_DEFAULT_2
2205 config NR_CPUS_DEFAULT_4
2208 config NR_CPUS_DEFAULT_8
2211 config NR_CPUS_DEFAULT_16
2214 config NR_CPUS_DEFAULT_32
2217 config NR_CPUS_DEFAULT_64
2221 int "Maximum number of CPUs (2-64)"
2222 range 1 64 if NR_CPUS_DEFAULT_1
2224 default "1" if NR_CPUS_DEFAULT_1
2225 default "2" if NR_CPUS_DEFAULT_2
2226 default "4" if NR_CPUS_DEFAULT_4
2227 default "8" if NR_CPUS_DEFAULT_8
2228 default "16" if NR_CPUS_DEFAULT_16
2229 default "32" if NR_CPUS_DEFAULT_32
2230 default "64" if NR_CPUS_DEFAULT_64
2232 This allows you to specify the maximum number of CPUs which this
2233 kernel will support. The maximum supported value is 32 for 32-bit
2234 kernel and 64 for 64-bit kernels; the minimum value which makes
2235 sense is 1 for Qemu (useful only for kernel debugging purposes)
2236 and 2 for all others.
2238 This is purely to save memory - each supported CPU adds
2239 approximately eight kilobytes to the kernel image. For best
2240 performance should round up your number of processors to the next
2243 config MIPS_PERF_SHARED_TC_COUNTERS
2247 # Timer Interrupt Frequency Configuration
2251 prompt "Timer frequency"
2254 Allows the configuration of the timer frequency.
2257 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2260 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2263 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2266 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2269 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2272 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2275 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2279 config SYS_SUPPORTS_48HZ
2282 config SYS_SUPPORTS_100HZ
2285 config SYS_SUPPORTS_128HZ
2288 config SYS_SUPPORTS_250HZ
2291 config SYS_SUPPORTS_256HZ
2294 config SYS_SUPPORTS_1000HZ
2297 config SYS_SUPPORTS_1024HZ
2300 config SYS_SUPPORTS_ARBIT_HZ
2302 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2303 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2304 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2305 !SYS_SUPPORTS_1024HZ
2310 default 100 if HZ_100
2311 default 128 if HZ_128
2312 default 250 if HZ_250
2313 default 256 if HZ_256
2314 default 1000 if HZ_1000
2315 default 1024 if HZ_1024
2317 source "kernel/Kconfig.preempt"
2320 bool "Kexec system call"
2322 kexec is a system call that implements the ability to shutdown your
2323 current kernel, and to start another kernel. It is like a reboot
2324 but it is independent of the system firmware. And like a reboot
2325 you can start any kernel with it, not just Linux.
2327 The name comes from the similarity to the exec system call.
2329 It is an ongoing process to be certain the hardware in a machine
2330 is properly shutdown, so do not be surprised if this code does not
2331 initially work for you. It may help to enable device hotplugging
2332 support. As of this writing the exact hardware interface is
2333 strongly in flux, so no good recommendation can be made.
2336 bool "Kernel crash dumps"
2338 Generate crash dump after being started by kexec.
2339 This should be normally only set in special crash dump kernels
2340 which are loaded in the main kernel with kexec-tools into
2341 a specially reserved region and then later executed after
2342 a crash by kdump/kexec. The crash dump kernel must be compiled
2343 to a memory address not used by the main kernel or firmware using
2346 config PHYSICAL_START
2347 hex "Physical address where the kernel is loaded"
2348 default "0xffffffff84000000" if 64BIT
2349 default "0x84000000" if 32BIT
2350 depends on CRASH_DUMP
2352 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2353 If you plan to use kernel for capturing the crash dump change
2354 this value to start of the reserved region (the "X" value as
2355 specified in the "crashkernel=YM@XM" command line boot parameter
2356 passed to the panic-ed kernel).
2359 bool "Enable seccomp to safely compute untrusted bytecode"
2363 This kernel feature is useful for number crunching applications
2364 that may need to compute untrusted bytecode during their
2365 execution. By using pipes or other transports made available to
2366 the process as file descriptors supporting the read/write
2367 syscalls, it's possible to isolate those applications in
2368 their own address space using seccomp. Once seccomp is
2369 enabled via /proc/<pid>/seccomp, it cannot be disabled
2370 and the task is only allowed to execute a few safe syscalls
2371 defined by each seccomp mode.
2373 If unsure, say Y. Only embedded should say N here.
2378 select OF_EARLY_FLATTREE
2383 config LOCKDEP_SUPPORT
2387 config STACKTRACE_SUPPORT
2391 source "init/Kconfig"
2393 source "kernel/Kconfig.freezer"
2395 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2403 bool "Support for PCI controller"
2404 depends on HW_HAS_PCI
2406 select GENERIC_PCI_IOMAP
2407 select NO_GENERIC_PCI_IOPORT_MAP
2409 Find out whether you have a PCI motherboard. PCI is the name of a
2410 bus system, i.e. the way the CPU talks to the other stuff inside
2411 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2417 source "drivers/pci/Kconfig"
2419 source "drivers/pci/pcie/Kconfig"
2422 # ISA support is now enabled via select. Too many systems still have the one
2423 # or other ISA chip on the board that users don't know about so don't expect
2424 # users to choose the right thing ...
2431 depends on HW_HAS_EISA
2433 select GENERIC_ISA_DMA
2435 The Extended Industry Standard Architecture (EISA) bus was
2436 developed as an open alternative to the IBM MicroChannel bus.
2438 The EISA bus provided some of the features of the IBM MicroChannel
2439 bus while maintaining backward compatibility with cards made for
2440 the older ISA bus. The EISA bus saw limited use between 1988 and
2441 1995 when it was made obsolete by the PCI bus.
2443 Say Y here if you are building a kernel for an EISA-based machine.
2447 source "drivers/eisa/Kconfig"
2450 bool "TURBOchannel support"
2451 depends on MACH_DECSTATION
2453 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2454 processors. TURBOchannel programming specifications are available
2456 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2458 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2459 Linux driver support status is documented at:
2460 <http://www.linux-mips.org/wiki/DECstation>
2470 select MIPS_EXTERNAL_TIMER
2475 source "drivers/pcmcia/Kconfig"
2477 source "drivers/pci/hotplug/Kconfig"
2480 bool "RapidIO support"
2484 If you say Y here, the kernel will include drivers and
2485 infrastructure code to support RapidIO interconnect devices.
2487 source "drivers/rapidio/Kconfig"
2491 menu "Executable file formats"
2493 source "fs/Kconfig.binfmt"
2498 config MIPS32_COMPAT
2499 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2502 Select this option if you want Linux/MIPS 32-bit binary
2503 compatibility. Since all software available for Linux/MIPS is
2504 currently 32-bit you should say Y here.
2508 depends on MIPS32_COMPAT
2509 select ARCH_WANT_OLD_COMPAT_IPC
2512 config SYSVIPC_COMPAT
2514 depends on COMPAT && SYSVIPC
2518 bool "Kernel support for o32 binaries"
2519 depends on MIPS32_COMPAT
2521 Select this option if you want to run o32 binaries. These are pure
2522 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2523 existing binaries are in this format.
2528 bool "Kernel support for n32 binaries"
2529 depends on MIPS32_COMPAT
2531 Select this option if you want to run n32 binaries. These are
2532 64-bit binaries using 32-bit quantities for addressing and certain
2533 data that would normally be 64-bit. They are used in special
2540 default y if MIPS32_O32 || MIPS32_N32
2544 menu "Power management options"
2546 config ARCH_HIBERNATION_POSSIBLE
2548 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2550 config ARCH_SUSPEND_POSSIBLE
2552 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2554 source "kernel/power/Kconfig"
2558 source "arch/mips/kernel/cpufreq/Kconfig"
2560 source "net/Kconfig"
2562 source "drivers/Kconfig"
2564 source "drivers/firmware/Kconfig"
2568 source "arch/mips/Kconfig.debug"
2570 source "security/Kconfig"
2572 source "crypto/Kconfig"
2574 source "lib/Kconfig"
2576 source "arch/mips/kvm/Kconfig"