4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
13 select HAVE_ARCH_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
23 select HAVE_KRETPROBES
24 select HAVE_DEBUG_KMEMLEAK
25 select HAVE_SYSCALL_TRACEPOINTS
26 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
28 select RTC_LIB if !MACH_LOONGSON
29 select GENERIC_ATOMIC64 if !64BIT
30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
32 select HAVE_DMA_CONTIGUOUS
33 select HAVE_DMA_API_DEBUG
34 select GENERIC_IRQ_PROBE
35 select GENERIC_IRQ_SHOW
36 select GENERIC_PCI_IOMAP
37 select HAVE_ARCH_JUMP_LABEL
38 select ARCH_WANT_IPC_PARSE_VERSION
39 select IRQ_FORCED_THREADING
41 select HAVE_MEMBLOCK_NODE_MAP
42 select ARCH_DISCARD_MEMBLOCK
43 select GENERIC_SMP_IDLE_THREAD
44 select BUILDTIME_EXTABLE_SORT
45 select GENERIC_CLOCKEVENTS
46 select GENERIC_CMOS_UPDATE
47 select HAVE_MOD_ARCH_SPECIFIC
49 select MODULES_USE_ELF_REL if MODULES
50 select MODULES_USE_ELF_RELA if MODULES && 64BIT
51 select CLONE_BACKWARDS
52 select HAVE_DEBUG_STACKOVERFLOW
53 select HAVE_CC_STACKPROTECTOR
54 select CPU_PM if CPU_IDLE
55 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
56 select ARCH_BINFMT_ELF_STATE
58 menu "Machine selection"
65 bool "Alchemy processor based machines"
66 select 64BIT_PHYS_ADDR
70 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
71 select SYS_HAS_CPU_MIPS32_R1
72 select SYS_SUPPORTS_32BIT_KERNEL
73 select SYS_SUPPORTS_APM_EMULATION
74 select ARCH_REQUIRE_GPIOLIB
75 select SYS_SUPPORTS_ZBOOT
79 bool "Texas Instruments AR7"
81 select DMA_NONCOHERENT
87 select SYS_HAS_CPU_MIPS32_R1
88 select SYS_HAS_EARLY_PRINTK
89 select SYS_SUPPORTS_32BIT_KERNEL
90 select SYS_SUPPORTS_LITTLE_ENDIAN
91 select SYS_SUPPORTS_MIPS16
92 select SYS_SUPPORTS_ZBOOT_UART16550
93 select ARCH_REQUIRE_GPIOLIB
97 Support for the Texas Instruments AR7 System-on-a-Chip
98 family: TNETD7100, 7200 and 7300.
101 bool "Atheros AR71XX/AR724X/AR913X based boards"
102 select ARCH_REQUIRE_GPIOLIB
106 select DMA_NONCOHERENT
111 select SYS_HAS_CPU_MIPS32_R2
112 select SYS_HAS_EARLY_PRINTK
113 select SYS_SUPPORTS_32BIT_KERNEL
114 select SYS_SUPPORTS_BIG_ENDIAN
115 select SYS_SUPPORTS_MIPS16
117 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
120 bool "Broadcom BCM3384 based boards"
122 select NO_EXCEPT_FILL
128 select DMA_NONCOHERENT
130 select SYS_SUPPORTS_32BIT_KERNEL
131 select SYS_SUPPORTS_BIG_ENDIAN
132 select SYS_SUPPORTS_HIGHMEM
133 select SYS_HAS_CPU_BMIPS5000
135 select USB_EHCI_BIG_ENDIAN_DESC
136 select USB_EHCI_BIG_ENDIAN_MMIO
137 select USB_OHCI_BIG_ENDIAN_DESC
138 select USB_OHCI_BIG_ENDIAN_MMIO
140 Support for BCM3384 based boards. BCM3384/BCM33843 is a cable modem
141 chipset with a Linux application processor that is often used to
142 provide Samba services, a CUPS print server, and/or advanced routing
146 bool "Broadcom BCM47XX based boards"
147 select ARCH_WANT_OPTIONAL_GPIOLIB
151 select DMA_NONCOHERENT
154 select SYS_HAS_CPU_MIPS32_R1
155 select NO_EXCEPT_FILL
156 select SYS_SUPPORTS_32BIT_KERNEL
157 select SYS_SUPPORTS_LITTLE_ENDIAN
158 select SYS_SUPPORTS_MIPS16
159 select SYS_HAS_EARLY_PRINTK
160 select USE_GENERIC_EARLY_PRINTK_8250
162 select LEDS_GPIO_REGISTER
164 Support for BCM47XX based boards
167 bool "Broadcom BCM63XX based boards"
172 select DMA_NONCOHERENT
174 select SYS_SUPPORTS_32BIT_KERNEL
175 select SYS_SUPPORTS_BIG_ENDIAN
176 select SYS_HAS_EARLY_PRINTK
178 select ARCH_REQUIRE_GPIOLIB
180 select MIPS_L1_CACHE_SHIFT_4
182 Support for BCM63XX based boards
189 select DMA_NONCOHERENT
195 select PCI_GT64XXX_PCI0
197 select SYS_HAS_CPU_NEVADA
198 select SYS_HAS_EARLY_PRINTK
199 select SYS_SUPPORTS_32BIT_KERNEL
200 select SYS_SUPPORTS_64BIT_KERNEL
201 select SYS_SUPPORTS_LITTLE_ENDIAN
202 select USE_GENERIC_EARLY_PRINTK_8250
204 config MACH_DECSTATION
208 select CEVT_R4K if CPU_R4X00
210 select CSRC_R4K if CPU_R4X00
211 select CPU_DADDI_WORKAROUNDS if 64BIT
212 select CPU_R4000_WORKAROUNDS if 64BIT
213 select CPU_R4400_WORKAROUNDS if 64BIT
214 select DMA_NONCOHERENT
217 select SYS_HAS_CPU_R3000
218 select SYS_HAS_CPU_R4X00
219 select SYS_SUPPORTS_32BIT_KERNEL
220 select SYS_SUPPORTS_64BIT_KERNEL
221 select SYS_SUPPORTS_LITTLE_ENDIAN
222 select SYS_SUPPORTS_128HZ
223 select SYS_SUPPORTS_256HZ
224 select SYS_SUPPORTS_1024HZ
225 select MIPS_L1_CACHE_SHIFT_4
227 This enables support for DEC's MIPS based workstations. For details
228 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
229 DECstation porting pages on <http://decstation.unix-ag.org/>.
231 If you have one of the following DECstation Models you definitely
232 want to choose R4xx0 for the CPU Type:
239 otherwise choose R3000.
242 bool "Jazz family of machines"
245 select ARCH_MAY_HAVE_PC_FDC
248 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
249 select GENERIC_ISA_DMA
250 select HAVE_PCSPKR_PLATFORM
255 select SYS_HAS_CPU_R4X00
256 select SYS_SUPPORTS_32BIT_KERNEL
257 select SYS_SUPPORTS_64BIT_KERNEL
258 select SYS_SUPPORTS_100HZ
260 This a family of machines based on the MIPS R4030 chipset which was
261 used by several vendors to build RISC/os and Windows NT workstations.
262 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
263 Olivetti M700-10 workstations.
266 bool "Ingenic JZ4740 based machines"
267 select SYS_HAS_CPU_MIPS32_R1
268 select SYS_SUPPORTS_32BIT_KERNEL
269 select SYS_SUPPORTS_LITTLE_ENDIAN
270 select SYS_SUPPORTS_ZBOOT_UART16550
271 select DMA_NONCOHERENT
273 select ARCH_REQUIRE_GPIOLIB
274 select SYS_HAS_EARLY_PRINTK
276 select GENERIC_IRQ_CHIP
279 bool "Lantiq based platforms"
280 select DMA_NONCOHERENT
284 select SYS_HAS_CPU_MIPS32_R1
285 select SYS_HAS_CPU_MIPS32_R2
286 select SYS_SUPPORTS_BIG_ENDIAN
287 select SYS_SUPPORTS_32BIT_KERNEL
288 select SYS_SUPPORTS_MIPS16
289 select SYS_SUPPORTS_MULTITHREADING
290 select SYS_HAS_EARLY_PRINTK
291 select ARCH_REQUIRE_GPIOLIB
294 select HAVE_MACH_CLKDEV
298 select PINCTRL_LANTIQ
301 bool "LASAT Networks platforms"
305 select DMA_NONCOHERENT
306 select SYS_HAS_EARLY_PRINTK
309 select PCI_GT64XXX_PCI0
311 select R5000_CPU_SCACHE
312 select SYS_HAS_CPU_R5000
313 select SYS_SUPPORTS_32BIT_KERNEL
314 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
315 select SYS_SUPPORTS_LITTLE_ENDIAN
318 bool "Loongson family of machines"
319 select SYS_SUPPORTS_ZBOOT
321 This enables the support of Loongson family of machines.
323 Loongson is a family of general-purpose MIPS-compatible CPUs.
324 developed at Institute of Computing Technology (ICT),
325 Chinese Academy of Sciences (CAS) in the People's Republic
326 of China. The chief architect is Professor Weiwu Hu.
328 config MACH_LOONGSON1
329 bool "Loongson 1 family of machines"
330 select SYS_SUPPORTS_ZBOOT
332 This enables support for the Loongson 1 based machines.
334 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
335 the ICT (Institute of Computing Technology) and the Chinese Academy
339 bool "MIPS Malta board"
340 select ARCH_MAY_HAVE_PC_FDC
345 select CLKSRC_MIPS_GIC
346 select DMA_MAYBE_COHERENT
347 select GENERIC_ISA_DMA
348 select HAVE_PCSPKR_PLATFORM
355 select MIPS_CPU_SCACHE
356 select MIPS_L1_CACHE_SHIFT_6
357 select PCI_GT64XXX_PCI0
360 select SYS_HAS_CPU_MIPS32_R1
361 select SYS_HAS_CPU_MIPS32_R2
362 select SYS_HAS_CPU_MIPS32_R3_5
363 select SYS_HAS_CPU_MIPS64_R1
364 select SYS_HAS_CPU_MIPS64_R2
365 select SYS_HAS_CPU_NEVADA
366 select SYS_HAS_CPU_RM7000
367 select SYS_SUPPORTS_32BIT_KERNEL
368 select SYS_SUPPORTS_64BIT_KERNEL
369 select SYS_SUPPORTS_BIG_ENDIAN
370 select SYS_SUPPORTS_LITTLE_ENDIAN
371 select SYS_SUPPORTS_MIPS_CMP
372 select SYS_SUPPORTS_MIPS_CPS
373 select SYS_SUPPORTS_MIPS16
374 select SYS_SUPPORTS_MULTITHREADING
375 select SYS_SUPPORTS_SMARTMIPS
376 select SYS_SUPPORTS_ZBOOT
378 This enables support for the MIPS Technologies Malta evaluation
382 bool "MIPS SEAD3 board"
388 select CLKSRC_MIPS_GIC
389 select CPU_MIPSR2_IRQ_VI
390 select CPU_MIPSR2_IRQ_EI
391 select DMA_NONCOHERENT
396 select SYS_HAS_CPU_MIPS32_R1
397 select SYS_HAS_CPU_MIPS32_R2
398 select SYS_HAS_CPU_MIPS64_R1
399 select SYS_HAS_EARLY_PRINTK
400 select SYS_SUPPORTS_32BIT_KERNEL
401 select SYS_SUPPORTS_64BIT_KERNEL
402 select SYS_SUPPORTS_BIG_ENDIAN
403 select SYS_SUPPORTS_LITTLE_ENDIAN
404 select SYS_SUPPORTS_SMARTMIPS
405 select SYS_SUPPORTS_MICROMIPS
406 select SYS_SUPPORTS_MIPS16
407 select USB_EHCI_BIG_ENDIAN_DESC
408 select USB_EHCI_BIG_ENDIAN_MMIO
411 This enables support for the MIPS Technologies SEAD3 evaluation
415 bool "NEC EMMA2RH Mark-eins board"
419 This enables support for the NEC Electronics Mark-eins boards.
422 bool "NEC VR4100 series based machines"
425 select SYS_HAS_CPU_VR41XX
426 select SYS_SUPPORTS_MIPS16
427 select ARCH_REQUIRE_GPIOLIB
430 bool "NXP STB220 board"
433 Support for NXP Semiconductors STB220 Development Board.
440 Support for NXP Semiconductors STB225 Development Board.
443 bool "PMC-Sierra MSP chipsets"
446 select DMA_NONCOHERENT
448 select NO_EXCEPT_FILL
450 select SYS_HAS_CPU_MIPS32_R1
451 select SYS_HAS_CPU_MIPS32_R2
452 select SYS_SUPPORTS_32BIT_KERNEL
453 select SYS_SUPPORTS_BIG_ENDIAN
454 select SYS_SUPPORTS_MIPS16
457 select SERIAL_8250_CONSOLE
458 select USB_EHCI_BIG_ENDIAN_MMIO
459 select USB_EHCI_BIG_ENDIAN_DESC
461 This adds support for the PMC-Sierra family of Multi-Service
462 Processor System-On-A-Chips. These parts include a number
463 of integrated peripherals, interfaces and DSPs in addition to
464 a variety of MIPS cores.
467 bool "Ralink based machines"
471 select DMA_NONCOHERENT
474 select SYS_HAS_CPU_MIPS32_R1
475 select SYS_HAS_CPU_MIPS32_R2
476 select SYS_SUPPORTS_32BIT_KERNEL
477 select SYS_SUPPORTS_LITTLE_ENDIAN
478 select SYS_SUPPORTS_MIPS16
479 select SYS_HAS_EARLY_PRINTK
480 select HAVE_MACH_CLKDEV
482 select ARCH_HAS_RESET_CONTROLLER
483 select RESET_CONTROLLER
486 bool "SGI IP22 (Indy/Indigo2)"
492 select DEFAULT_SGI_PARTITION
493 select DMA_NONCOHERENT
497 select IP22_CPU_SCACHE
499 select GENERIC_ISA_DMA_SUPPORT_BROKEN
501 select SGI_HAS_INDYDOG
507 select SYS_HAS_CPU_R4X00
508 select SYS_HAS_CPU_R5000
510 # Disable EARLY_PRINTK for now since it leads to overwritten prom
511 # memory during early boot on some machines.
513 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
514 # for a more details discussion
516 # select SYS_HAS_EARLY_PRINTK
517 select SYS_SUPPORTS_32BIT_KERNEL
518 select SYS_SUPPORTS_64BIT_KERNEL
519 select SYS_SUPPORTS_BIG_ENDIAN
520 select MIPS_L1_CACHE_SHIFT_7
522 This are the SGI Indy, Challenge S and Indigo2, as well as certain
523 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
524 that runs on these, say Y here.
527 bool "SGI IP27 (Origin200/2000)"
531 select DEFAULT_SGI_PARTITION
533 select SYS_HAS_EARLY_PRINTK
535 select NR_CPUS_DEFAULT_64
536 select SYS_HAS_CPU_R10000
537 select SYS_SUPPORTS_64BIT_KERNEL
538 select SYS_SUPPORTS_BIG_ENDIAN
539 select SYS_SUPPORTS_NUMA
540 select SYS_SUPPORTS_SMP
541 select MIPS_L1_CACHE_SHIFT_7
543 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
544 workstations. To compile a Linux kernel that runs on these, say Y
548 bool "SGI IP28 (Indigo2 R10k)"
554 select DEFAULT_SGI_PARTITION
555 select DMA_NONCOHERENT
556 select GENERIC_ISA_DMA_SUPPORT_BROKEN
562 select SGI_HAS_INDYDOG
568 select SYS_HAS_CPU_R10000
570 # Disable EARLY_PRINTK for now since it leads to overwritten prom
571 # memory during early boot on some machines.
573 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
574 # for a more details discussion
576 # select SYS_HAS_EARLY_PRINTK
577 select SYS_SUPPORTS_64BIT_KERNEL
578 select SYS_SUPPORTS_BIG_ENDIAN
579 select MIPS_L1_CACHE_SHIFT_7
581 This is the SGI Indigo2 with R10000 processor. To compile a Linux
582 kernel that runs on these, say Y here.
591 select DMA_NONCOHERENT
594 select R5000_CPU_SCACHE
595 select RM7000_CPU_SCACHE
596 select SYS_HAS_CPU_R5000
597 select SYS_HAS_CPU_R10000 if BROKEN
598 select SYS_HAS_CPU_RM7000
599 select SYS_HAS_CPU_NEVADA
600 select SYS_SUPPORTS_64BIT_KERNEL
601 select SYS_SUPPORTS_BIG_ENDIAN
603 If you want this kernel to run on SGI O2 workstation, say Y here.
606 bool "Sibyte BCM91120C-CRhine"
609 select SIBYTE_BCM1120
611 select SYS_HAS_CPU_SB1
612 select SYS_SUPPORTS_BIG_ENDIAN
613 select SYS_SUPPORTS_LITTLE_ENDIAN
616 bool "Sibyte BCM91120x-Carmel"
619 select SIBYTE_BCM1120
621 select SYS_HAS_CPU_SB1
622 select SYS_SUPPORTS_BIG_ENDIAN
623 select SYS_SUPPORTS_LITTLE_ENDIAN
626 bool "Sibyte BCM91125C-CRhone"
629 select SIBYTE_BCM1125
631 select SYS_HAS_CPU_SB1
632 select SYS_SUPPORTS_BIG_ENDIAN
633 select SYS_SUPPORTS_HIGHMEM
634 select SYS_SUPPORTS_LITTLE_ENDIAN
637 bool "Sibyte BCM91125E-Rhone"
640 select SIBYTE_BCM1125H
642 select SYS_HAS_CPU_SB1
643 select SYS_SUPPORTS_BIG_ENDIAN
644 select SYS_SUPPORTS_LITTLE_ENDIAN
647 bool "Sibyte BCM91250A-SWARM"
650 select HAVE_PATA_PLATFORM
653 select SYS_HAS_CPU_SB1
654 select SYS_SUPPORTS_BIG_ENDIAN
655 select SYS_SUPPORTS_HIGHMEM
656 select SYS_SUPPORTS_LITTLE_ENDIAN
657 select ZONE_DMA32 if 64BIT
659 config SIBYTE_LITTLESUR
660 bool "Sibyte BCM91250C2-LittleSur"
663 select HAVE_PATA_PLATFORM
666 select SYS_HAS_CPU_SB1
667 select SYS_SUPPORTS_BIG_ENDIAN
668 select SYS_SUPPORTS_HIGHMEM
669 select SYS_SUPPORTS_LITTLE_ENDIAN
671 config SIBYTE_SENTOSA
672 bool "Sibyte BCM91250E-Sentosa"
677 select SYS_HAS_CPU_SB1
678 select SYS_SUPPORTS_BIG_ENDIAN
679 select SYS_SUPPORTS_LITTLE_ENDIAN
682 bool "Sibyte BCM91480B-BigSur"
685 select NR_CPUS_DEFAULT_4
686 select SIBYTE_BCM1x80
688 select SYS_HAS_CPU_SB1
689 select SYS_SUPPORTS_BIG_ENDIAN
690 select SYS_SUPPORTS_HIGHMEM
691 select SYS_SUPPORTS_LITTLE_ENDIAN
692 select ZONE_DMA32 if 64BIT
695 bool "SNI RM200/300/400"
696 select FW_ARC if CPU_LITTLE_ENDIAN
697 select FW_ARC32 if CPU_LITTLE_ENDIAN
698 select FW_SNIPROM if CPU_BIG_ENDIAN
699 select ARCH_MAY_HAVE_PC_FDC
703 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
704 select DMA_NONCOHERENT
705 select GENERIC_ISA_DMA
706 select HAVE_PCSPKR_PLATFORM
713 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
714 select SYS_HAS_CPU_R4X00
715 select SYS_HAS_CPU_R5000
716 select SYS_HAS_CPU_R10000
717 select R5000_CPU_SCACHE
718 select SYS_HAS_EARLY_PRINTK
719 select SYS_SUPPORTS_32BIT_KERNEL
720 select SYS_SUPPORTS_64BIT_KERNEL
721 select SYS_SUPPORTS_BIG_ENDIAN
722 select SYS_SUPPORTS_HIGHMEM
723 select SYS_SUPPORTS_LITTLE_ENDIAN
725 The SNI RM200/300/400 are MIPS-based machines manufactured by
726 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
727 Technology and now in turn merged with Fujitsu. Say Y here to
728 support this machine type.
731 bool "Toshiba TX39 series based machines"
734 bool "Toshiba TX49 series based machines"
736 config MIKROTIK_RB532
737 bool "Mikrotik RB532 boards"
740 select DMA_NONCOHERENT
743 select SYS_HAS_CPU_MIPS32_R1
744 select SYS_SUPPORTS_32BIT_KERNEL
745 select SYS_SUPPORTS_LITTLE_ENDIAN
748 select ARCH_REQUIRE_GPIOLIB
749 select MIPS_L1_CACHE_SHIFT_4
751 Support the Mikrotik(tm) RouterBoard 532 series,
752 based on the IDT RC32434 SoC.
754 config CAVIUM_OCTEON_SOC
755 bool "Cavium Networks Octeon SoC based boards"
757 select 64BIT_PHYS_ADDR
759 select SYS_SUPPORTS_64BIT_KERNEL
760 select SYS_SUPPORTS_BIG_ENDIAN
762 select SYS_SUPPORTS_HOTPLUG_CPU
763 select SYS_HAS_EARLY_PRINTK
764 select SYS_HAS_CPU_CAVIUM_OCTEON
769 select ARCH_REQUIRE_GPIOLIB
772 select ARCH_SPARSEMEM_ENABLE
773 select SYS_SUPPORTS_SMP
774 select NR_CPUS_DEFAULT_16
777 This option supports all of the Octeon reference boards from Cavium
778 Networks. It builds a kernel that dynamically determines the Octeon
779 CPU type and supports all known board reference implementations.
780 Some of the supported boards are:
787 Say Y here for most Octeon reference boards.
790 bool "Netlogic XLR/XLS based systems"
793 select SYS_HAS_CPU_XLR
794 select SYS_SUPPORTS_SMP
797 select SYS_SUPPORTS_32BIT_KERNEL
798 select SYS_SUPPORTS_64BIT_KERNEL
799 select 64BIT_PHYS_ADDR
800 select SYS_SUPPORTS_BIG_ENDIAN
801 select SYS_SUPPORTS_HIGHMEM
803 select NR_CPUS_DEFAULT_32
807 select ZONE_DMA32 if 64BIT
809 select SYS_HAS_EARLY_PRINTK
810 select SYS_SUPPORTS_ZBOOT
811 select SYS_SUPPORTS_ZBOOT_UART16550
813 Support for systems based on Netlogic XLR and XLS processors.
814 Say Y here if you have a XLR or XLS based board.
817 bool "Netlogic XLP based systems"
820 select SYS_HAS_CPU_XLP
821 select SYS_SUPPORTS_SMP
823 select SYS_SUPPORTS_32BIT_KERNEL
824 select SYS_SUPPORTS_64BIT_KERNEL
825 select 64BIT_PHYS_ADDR
826 select SYS_SUPPORTS_BIG_ENDIAN
827 select SYS_SUPPORTS_LITTLE_ENDIAN
828 select SYS_SUPPORTS_HIGHMEM
830 select NR_CPUS_DEFAULT_32
834 select ZONE_DMA32 if 64BIT
836 select SYS_HAS_EARLY_PRINTK
838 select SYS_SUPPORTS_ZBOOT
839 select SYS_SUPPORTS_ZBOOT_UART16550
841 This board is based on Netlogic XLP Processor.
842 Say Y here if you have a XLP based board.
845 bool "Para-Virtualized guest system"
849 select SYS_SUPPORTS_64BIT_KERNEL
850 select SYS_SUPPORTS_32BIT_KERNEL
851 select SYS_SUPPORTS_BIG_ENDIAN
852 select SYS_SUPPORTS_SMP
853 select NR_CPUS_DEFAULT_4
854 select SYS_HAS_EARLY_PRINTK
855 select SYS_HAS_CPU_MIPS32_R2
856 select SYS_HAS_CPU_MIPS64_R2
857 select SYS_HAS_CPU_CAVIUM_OCTEON
861 This option supports guest running under ????
865 source "arch/mips/alchemy/Kconfig"
866 source "arch/mips/ath79/Kconfig"
867 source "arch/mips/bcm47xx/Kconfig"
868 source "arch/mips/bcm63xx/Kconfig"
869 source "arch/mips/jazz/Kconfig"
870 source "arch/mips/jz4740/Kconfig"
871 source "arch/mips/lantiq/Kconfig"
872 source "arch/mips/lasat/Kconfig"
873 source "arch/mips/pmcs-msp71xx/Kconfig"
874 source "arch/mips/ralink/Kconfig"
875 source "arch/mips/sgi-ip27/Kconfig"
876 source "arch/mips/sibyte/Kconfig"
877 source "arch/mips/txx9/Kconfig"
878 source "arch/mips/vr41xx/Kconfig"
879 source "arch/mips/cavium-octeon/Kconfig"
880 source "arch/mips/loongson/Kconfig"
881 source "arch/mips/loongson1/Kconfig"
882 source "arch/mips/netlogic/Kconfig"
883 source "arch/mips/paravirt/Kconfig"
887 config RWSEM_GENERIC_SPINLOCK
891 config RWSEM_XCHGADD_ALGORITHM
894 config ARCH_HAS_ILOG2_U32
898 config ARCH_HAS_ILOG2_U64
902 config GENERIC_HWEIGHT
906 config GENERIC_CALIBRATE_DELAY
910 config SCHED_OMIT_FRAME_POINTER
915 # Select some configuration options automatically based on user selections.
920 config ARCH_MAY_HAVE_PC_FDC
961 select ARCH_REQUIRE_GPIOLIB
967 config ARCH_DMA_ADDR_T_64BIT
968 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
970 config DMA_MAYBE_COHERENT
971 select DMA_NONCOHERENT
977 config DMA_NONCOHERENT
979 select NEED_DMA_MAP_STATE
981 config NEED_DMA_MAP_STATE
984 config SYS_HAS_EARLY_PRINTK
988 bool "Support for hot-pluggable CPUs"
989 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
991 Say Y here to allow turning CPUs off and on. CPUs can be
992 controlled through /sys/devices/system/cpu.
993 (Note: power management support will enable this option
994 automatically on SMP systems. )
995 Say N if you want to disable CPU hotplug.
997 config SYS_SUPPORTS_HOTPLUG_CPU
1004 config MIPS_BONITO64
1019 config NO_IOPORT_MAP
1022 config GENERIC_ISA_DMA
1024 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1027 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1029 select GENERIC_ISA_DMA
1034 config HOLES_IN_ZONE
1038 # Endianness selection. Sufficiently obscure so many users don't know what to
1039 # answer,so we try hard to limit the available choices. Also the use of a
1040 # choice statement should be more obvious to the user.
1043 prompt "Endianness selection"
1045 Some MIPS machines can be configured for either little or big endian
1046 byte order. These modes require different kernels and a different
1047 Linux distribution. In general there is one preferred byteorder for a
1048 particular system but some systems are just as commonly used in the
1049 one or the other endianness.
1051 config CPU_BIG_ENDIAN
1053 depends on SYS_SUPPORTS_BIG_ENDIAN
1055 config CPU_LITTLE_ENDIAN
1056 bool "Little endian"
1057 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1064 config SYS_SUPPORTS_APM_EMULATION
1067 config SYS_SUPPORTS_BIG_ENDIAN
1070 config SYS_SUPPORTS_LITTLE_ENDIAN
1073 config SYS_SUPPORTS_HUGETLBFS
1075 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1078 config MIPS_HUGE_TLB_SUPPORT
1079 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1100 config PCI_GT64XXX_PCI0
1103 config NO_EXCEPT_FILL
1110 select DMA_NONCOHERENT
1112 select SWAP_IO_SPACE
1113 select SYS_HAS_CPU_R5500
1114 select SYS_SUPPORTS_32BIT_KERNEL
1115 select SYS_SUPPORTS_64BIT_KERNEL
1116 select SYS_SUPPORTS_BIG_ENDIAN
1123 select DMA_NONCOHERENT
1124 select SYS_HAS_CPU_MIPS32_R2
1125 select SYS_SUPPORTS_32BIT_KERNEL
1126 select SYS_SUPPORTS_LITTLE_ENDIAN
1127 select SYS_SUPPORTS_BIG_ENDIAN
1128 select SYS_SUPPORTS_MIPS16
1129 select CPU_MIPSR2_IRQ_VI
1135 config SWAP_IO_SPACE
1138 config SGI_HAS_INDYDOG
1150 config SGI_HAS_ZILOG
1153 config SGI_HAS_I8042
1156 config DEFAULT_SGI_PARTITION
1168 config MIPS_L1_CACHE_SHIFT_4
1171 config MIPS_L1_CACHE_SHIFT_5
1174 config MIPS_L1_CACHE_SHIFT_6
1177 config MIPS_L1_CACHE_SHIFT_7
1180 config MIPS_L1_CACHE_SHIFT
1182 default "4" if MIPS_L1_CACHE_SHIFT_4
1183 default "5" if MIPS_L1_CACHE_SHIFT_5
1184 default "6" if MIPS_L1_CACHE_SHIFT_6
1185 default "7" if MIPS_L1_CACHE_SHIFT_7
1188 config HAVE_STD_PC_SERIAL_PORT
1192 bool "ARC console support"
1193 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1197 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1202 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1211 menu "CPU selection"
1217 config CPU_LOONGSON3
1218 bool "Loongson 3 CPU"
1219 depends on SYS_HAS_CPU_LOONGSON3
1220 select CPU_SUPPORTS_64BIT_KERNEL
1221 select CPU_SUPPORTS_HIGHMEM
1222 select CPU_SUPPORTS_HUGEPAGES
1223 select WEAK_ORDERING
1224 select WEAK_REORDERING_BEYOND_LLSC
1226 The Loongson 3 processor implements the MIPS64R2 instruction
1227 set with many extensions.
1229 config CPU_LOONGSON2E
1231 depends on SYS_HAS_CPU_LOONGSON2E
1232 select CPU_LOONGSON2
1234 The Loongson 2E processor implements the MIPS III instruction set
1235 with many extensions.
1237 It has an internal FPGA northbridge, which is compatible to
1240 config CPU_LOONGSON2F
1242 depends on SYS_HAS_CPU_LOONGSON2F
1243 select CPU_LOONGSON2
1244 select ARCH_REQUIRE_GPIOLIB
1246 The Loongson 2F processor implements the MIPS III instruction set
1247 with many extensions.
1249 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1250 have a similar programming interface with FPGA northbridge used in
1253 config CPU_LOONGSON1B
1255 depends on SYS_HAS_CPU_LOONGSON1B
1256 select CPU_LOONGSON1
1258 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1259 release 2 instruction set.
1261 config CPU_MIPS32_R1
1262 bool "MIPS32 Release 1"
1263 depends on SYS_HAS_CPU_MIPS32_R1
1264 select CPU_HAS_PREFETCH
1265 select CPU_SUPPORTS_32BIT_KERNEL
1266 select CPU_SUPPORTS_HIGHMEM
1268 Choose this option to build a kernel for release 1 or later of the
1269 MIPS32 architecture. Most modern embedded systems with a 32-bit
1270 MIPS processor are based on a MIPS32 processor. If you know the
1271 specific type of processor in your system, choose those that one
1272 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1273 Release 2 of the MIPS32 architecture is available since several
1274 years so chances are you even have a MIPS32 Release 2 processor
1275 in which case you should choose CPU_MIPS32_R2 instead for better
1278 config CPU_MIPS32_R2
1279 bool "MIPS32 Release 2"
1280 depends on SYS_HAS_CPU_MIPS32_R2
1281 select CPU_HAS_PREFETCH
1282 select CPU_SUPPORTS_32BIT_KERNEL
1283 select CPU_SUPPORTS_HIGHMEM
1284 select CPU_SUPPORTS_MSA
1287 Choose this option to build a kernel for release 2 or later of the
1288 MIPS32 architecture. Most modern embedded systems with a 32-bit
1289 MIPS processor are based on a MIPS32 processor. If you know the
1290 specific type of processor in your system, choose those that one
1291 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1293 config CPU_MIPS64_R1
1294 bool "MIPS64 Release 1"
1295 depends on SYS_HAS_CPU_MIPS64_R1
1296 select CPU_HAS_PREFETCH
1297 select CPU_SUPPORTS_32BIT_KERNEL
1298 select CPU_SUPPORTS_64BIT_KERNEL
1299 select CPU_SUPPORTS_HIGHMEM
1300 select CPU_SUPPORTS_HUGEPAGES
1302 Choose this option to build a kernel for release 1 or later of the
1303 MIPS64 architecture. Many modern embedded systems with a 64-bit
1304 MIPS processor are based on a MIPS64 processor. If you know the
1305 specific type of processor in your system, choose those that one
1306 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1307 Release 2 of the MIPS64 architecture is available since several
1308 years so chances are you even have a MIPS64 Release 2 processor
1309 in which case you should choose CPU_MIPS64_R2 instead for better
1312 config CPU_MIPS64_R2
1313 bool "MIPS64 Release 2"
1314 depends on SYS_HAS_CPU_MIPS64_R2
1315 select CPU_HAS_PREFETCH
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
1318 select CPU_SUPPORTS_HIGHMEM
1319 select CPU_SUPPORTS_HUGEPAGES
1320 select CPU_SUPPORTS_MSA
1322 Choose this option to build a kernel for release 2 or later of the
1323 MIPS64 architecture. Many modern embedded systems with a 64-bit
1324 MIPS processor are based on a MIPS64 processor. If you know the
1325 specific type of processor in your system, choose those that one
1326 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1330 depends on SYS_HAS_CPU_R3000
1332 select CPU_SUPPORTS_32BIT_KERNEL
1333 select CPU_SUPPORTS_HIGHMEM
1335 Please make sure to pick the right CPU type. Linux/MIPS is not
1336 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1337 *not* work on R4000 machines and vice versa. However, since most
1338 of the supported machines have an R4000 (or similar) CPU, R4x00
1339 might be a safe bet. If the resulting kernel does not work,
1340 try to recompile with R3000.
1344 depends on SYS_HAS_CPU_TX39XX
1345 select CPU_SUPPORTS_32BIT_KERNEL
1349 depends on SYS_HAS_CPU_VR41XX
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1353 The options selects support for the NEC VR4100 series of processors.
1354 Only choose this option if you have one of these processors as a
1355 kernel built with this option will not run on any other type of
1356 processor or vice versa.
1360 depends on SYS_HAS_CPU_R4300
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1364 MIPS Technologies R4300-series processors.
1368 depends on SYS_HAS_CPU_R4X00
1369 select CPU_SUPPORTS_32BIT_KERNEL
1370 select CPU_SUPPORTS_64BIT_KERNEL
1371 select CPU_SUPPORTS_HUGEPAGES
1373 MIPS Technologies R4000-series processors other than 4300, including
1374 the R4000, R4400, R4600, and 4700.
1378 depends on SYS_HAS_CPU_TX49XX
1379 select CPU_HAS_PREFETCH
1380 select CPU_SUPPORTS_32BIT_KERNEL
1381 select CPU_SUPPORTS_64BIT_KERNEL
1382 select CPU_SUPPORTS_HUGEPAGES
1386 depends on SYS_HAS_CPU_R5000
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 select CPU_SUPPORTS_64BIT_KERNEL
1389 select CPU_SUPPORTS_HUGEPAGES
1391 MIPS Technologies R5000-series processors other than the Nevada.
1395 depends on SYS_HAS_CPU_R5432
1396 select CPU_SUPPORTS_32BIT_KERNEL
1397 select CPU_SUPPORTS_64BIT_KERNEL
1398 select CPU_SUPPORTS_HUGEPAGES
1402 depends on SYS_HAS_CPU_R5500
1403 select CPU_SUPPORTS_32BIT_KERNEL
1404 select CPU_SUPPORTS_64BIT_KERNEL
1405 select CPU_SUPPORTS_HUGEPAGES
1407 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1412 depends on SYS_HAS_CPU_R6000
1413 select CPU_SUPPORTS_32BIT_KERNEL
1415 MIPS Technologies R6000 and R6000A series processors. Note these
1416 processors are extremely rare and the support for them is incomplete.
1420 depends on SYS_HAS_CPU_NEVADA
1421 select CPU_SUPPORTS_32BIT_KERNEL
1422 select CPU_SUPPORTS_64BIT_KERNEL
1423 select CPU_SUPPORTS_HUGEPAGES
1425 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1429 depends on SYS_HAS_CPU_R8000
1430 select CPU_HAS_PREFETCH
1431 select CPU_SUPPORTS_64BIT_KERNEL
1433 MIPS Technologies R8000 processors. Note these processors are
1434 uncommon and the support for them is incomplete.
1438 depends on SYS_HAS_CPU_R10000
1439 select CPU_HAS_PREFETCH
1440 select CPU_SUPPORTS_32BIT_KERNEL
1441 select CPU_SUPPORTS_64BIT_KERNEL
1442 select CPU_SUPPORTS_HIGHMEM
1443 select CPU_SUPPORTS_HUGEPAGES
1445 MIPS Technologies R10000-series processors.
1449 depends on SYS_HAS_CPU_RM7000
1450 select CPU_HAS_PREFETCH
1451 select CPU_SUPPORTS_32BIT_KERNEL
1452 select CPU_SUPPORTS_64BIT_KERNEL
1453 select CPU_SUPPORTS_HIGHMEM
1454 select CPU_SUPPORTS_HUGEPAGES
1458 depends on SYS_HAS_CPU_SB1
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1461 select CPU_SUPPORTS_HIGHMEM
1462 select CPU_SUPPORTS_HUGEPAGES
1463 select WEAK_ORDERING
1465 config CPU_CAVIUM_OCTEON
1466 bool "Cavium Octeon processor"
1467 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1468 select CPU_HAS_PREFETCH
1469 select CPU_SUPPORTS_64BIT_KERNEL
1470 select WEAK_ORDERING
1471 select CPU_SUPPORTS_HIGHMEM
1472 select CPU_SUPPORTS_HUGEPAGES
1473 select USB_EHCI_BIG_ENDIAN_MMIO
1474 select MIPS_L1_CACHE_SHIFT_7
1476 The Cavium Octeon processor is a highly integrated chip containing
1477 many ethernet hardware widgets for networking tasks. The processor
1478 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1479 Full details can be found at http://www.caviumnetworks.com.
1482 bool "Broadcom BMIPS"
1483 depends on SYS_HAS_CPU_BMIPS
1485 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1486 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1487 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1488 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1489 select CPU_SUPPORTS_32BIT_KERNEL
1490 select DMA_NONCOHERENT
1492 select SWAP_IO_SPACE
1493 select WEAK_ORDERING
1494 select CPU_SUPPORTS_HIGHMEM
1495 select CPU_HAS_PREFETCH
1497 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1500 bool "Netlogic XLR SoC"
1501 depends on SYS_HAS_CPU_XLR
1502 select CPU_SUPPORTS_32BIT_KERNEL
1503 select CPU_SUPPORTS_64BIT_KERNEL
1504 select CPU_SUPPORTS_HIGHMEM
1505 select CPU_SUPPORTS_HUGEPAGES
1506 select WEAK_ORDERING
1507 select WEAK_REORDERING_BEYOND_LLSC
1509 Netlogic Microsystems XLR/XLS processors.
1512 bool "Netlogic XLP SoC"
1513 depends on SYS_HAS_CPU_XLP
1514 select CPU_SUPPORTS_32BIT_KERNEL
1515 select CPU_SUPPORTS_64BIT_KERNEL
1516 select CPU_SUPPORTS_HIGHMEM
1517 select WEAK_ORDERING
1518 select WEAK_REORDERING_BEYOND_LLSC
1519 select CPU_HAS_PREFETCH
1522 Netlogic Microsystems XLP processors.
1525 config CPU_MIPS32_3_5_FEATURES
1526 bool "MIPS32 Release 3.5 Features"
1527 depends on SYS_HAS_CPU_MIPS32_R3_5
1528 depends on CPU_MIPS32_R2
1530 Choose this option to build a kernel for release 2 or later of the
1531 MIPS32 architecture including features from the 3.5 release such as
1532 support for Enhanced Virtual Addressing (EVA).
1534 config CPU_MIPS32_3_5_EVA
1535 bool "Enhanced Virtual Addressing (EVA)"
1536 depends on CPU_MIPS32_3_5_FEATURES
1540 Choose this option if you want to enable the Enhanced Virtual
1541 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1542 One of its primary benefits is an increase in the maximum size
1543 of lowmem (up to 3GB). If unsure, say 'N' here.
1546 config CPU_NOP_WORKAROUNDS
1549 config CPU_JUMP_WORKAROUNDS
1552 config CPU_LOONGSON2F_WORKAROUNDS
1553 bool "Loongson 2F Workarounds"
1555 select CPU_NOP_WORKAROUNDS
1556 select CPU_JUMP_WORKAROUNDS
1558 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1559 require workarounds. Without workarounds the system may hang
1560 unexpectedly. For more information please refer to the gas
1561 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1563 Loongson 2F03 and later have fixed these issues and no workarounds
1564 are needed. The workarounds have no significant side effect on them
1565 but may decrease the performance of the system so this option should
1566 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1569 If unsure, please say Y.
1570 endif # CPU_LOONGSON2F
1572 config SYS_SUPPORTS_ZBOOT
1574 select HAVE_KERNEL_GZIP
1575 select HAVE_KERNEL_BZIP2
1576 select HAVE_KERNEL_LZ4
1577 select HAVE_KERNEL_LZMA
1578 select HAVE_KERNEL_LZO
1579 select HAVE_KERNEL_XZ
1581 config SYS_SUPPORTS_ZBOOT_UART16550
1583 select SYS_SUPPORTS_ZBOOT
1585 config CPU_LOONGSON2
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select CPU_SUPPORTS_64BIT_KERNEL
1589 select CPU_SUPPORTS_HIGHMEM
1590 select CPU_SUPPORTS_HUGEPAGES
1592 config CPU_LOONGSON1
1596 select CPU_HAS_PREFETCH
1597 select CPU_SUPPORTS_32BIT_KERNEL
1598 select CPU_SUPPORTS_HIGHMEM
1599 select CPU_SUPPORTS_CPUFREQ
1601 config CPU_BMIPS32_3300
1602 select SMP_UP if SMP
1605 config CPU_BMIPS4350
1607 select SYS_SUPPORTS_SMP
1608 select SYS_SUPPORTS_HOTPLUG_CPU
1610 config CPU_BMIPS4380
1612 select MIPS_L1_CACHE_SHIFT_6
1613 select SYS_SUPPORTS_SMP
1614 select SYS_SUPPORTS_HOTPLUG_CPU
1616 config CPU_BMIPS5000
1618 select MIPS_CPU_SCACHE
1619 select MIPS_L1_CACHE_SHIFT_7
1620 select SYS_SUPPORTS_SMP
1621 select SYS_SUPPORTS_HOTPLUG_CPU
1623 config SYS_HAS_CPU_LOONGSON3
1625 select CPU_SUPPORTS_CPUFREQ
1627 config SYS_HAS_CPU_LOONGSON2E
1630 config SYS_HAS_CPU_LOONGSON2F
1632 select CPU_SUPPORTS_CPUFREQ
1633 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1634 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1636 config SYS_HAS_CPU_LOONGSON1B
1639 config SYS_HAS_CPU_MIPS32_R1
1642 config SYS_HAS_CPU_MIPS32_R2
1645 config SYS_HAS_CPU_MIPS32_R3_5
1648 config SYS_HAS_CPU_MIPS64_R1
1651 config SYS_HAS_CPU_MIPS64_R2
1654 config SYS_HAS_CPU_R3000
1657 config SYS_HAS_CPU_TX39XX
1660 config SYS_HAS_CPU_VR41XX
1663 config SYS_HAS_CPU_R4300
1666 config SYS_HAS_CPU_R4X00
1669 config SYS_HAS_CPU_TX49XX
1672 config SYS_HAS_CPU_R5000
1675 config SYS_HAS_CPU_R5432
1678 config SYS_HAS_CPU_R5500
1681 config SYS_HAS_CPU_R6000
1684 config SYS_HAS_CPU_NEVADA
1687 config SYS_HAS_CPU_R8000
1690 config SYS_HAS_CPU_R10000
1693 config SYS_HAS_CPU_RM7000
1696 config SYS_HAS_CPU_SB1
1699 config SYS_HAS_CPU_CAVIUM_OCTEON
1702 config SYS_HAS_CPU_BMIPS
1705 config SYS_HAS_CPU_BMIPS32_3300
1707 select SYS_HAS_CPU_BMIPS
1709 config SYS_HAS_CPU_BMIPS4350
1711 select SYS_HAS_CPU_BMIPS
1713 config SYS_HAS_CPU_BMIPS4380
1715 select SYS_HAS_CPU_BMIPS
1717 config SYS_HAS_CPU_BMIPS5000
1719 select SYS_HAS_CPU_BMIPS
1721 config SYS_HAS_CPU_XLR
1724 config SYS_HAS_CPU_XLP
1727 config MIPS_MALTA_PM
1728 depends on MIPS_MALTA
1734 # CPU may reorder R->R, R->W, W->R, W->W
1735 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1737 config WEAK_ORDERING
1741 # CPU may reorder reads and writes beyond LL/SC
1742 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1744 config WEAK_REORDERING_BEYOND_LLSC
1749 # These two indicate any level of the MIPS32 and MIPS64 architecture
1753 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1757 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1760 # These two indicate the revision of the architecture, either Release 1 or Release 2
1764 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1768 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1773 config SYS_SUPPORTS_32BIT_KERNEL
1775 config SYS_SUPPORTS_64BIT_KERNEL
1777 config CPU_SUPPORTS_32BIT_KERNEL
1779 config CPU_SUPPORTS_64BIT_KERNEL
1781 config CPU_SUPPORTS_CPUFREQ
1783 config CPU_SUPPORTS_ADDRWINCFG
1785 config CPU_SUPPORTS_HUGEPAGES
1787 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1789 config MIPS_PGD_C0_CONTEXT
1791 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1794 # Set to y for ptrace access to watch registers.
1796 config HARDWARE_WATCHPOINTS
1798 default y if CPU_MIPSR1 || CPU_MIPSR2
1803 prompt "Kernel code model"
1805 You should only select this option if you have a workload that
1806 actually benefits from 64-bit processing or if your machine has
1807 large memory. You will only be presented a single option in this
1808 menu if your system does not support both 32-bit and 64-bit kernels.
1811 bool "32-bit kernel"
1812 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1815 Select this option if you want to build a 32-bit kernel.
1817 bool "64-bit kernel"
1818 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1820 Select this option if you want to build a 64-bit kernel.
1825 bool "KVM Guest Kernel"
1826 depends on BROKEN_ON_SMP
1828 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1830 config KVM_GUEST_TIMER_FREQ
1831 int "Count/Compare Timer Frequency (MHz)"
1832 depends on KVM_GUEST
1835 Set this to non-zero if building a guest kernel for KVM to skip RTC
1836 emulation when determining guest CPU Frequency. Instead, the guest's
1837 timer frequency is specified directly.
1840 prompt "Kernel page size"
1841 default PAGE_SIZE_4KB
1843 config PAGE_SIZE_4KB
1845 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1847 This option select the standard 4kB Linux page size. On some
1848 R3000-family processors this is the only available page size. Using
1849 4kB page size will minimize memory consumption and is therefore
1850 recommended for low memory systems.
1852 config PAGE_SIZE_8KB
1854 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1856 Using 8kB page size will result in higher performance kernel at
1857 the price of higher memory consumption. This option is available
1858 only on R8000 and cnMIPS processors. Note that you will need a
1859 suitable Linux distribution to support this.
1861 config PAGE_SIZE_16KB
1863 depends on !CPU_R3000 && !CPU_TX39XX
1865 Using 16kB page size will result in higher performance kernel at
1866 the price of higher memory consumption. This option is available on
1867 all non-R3000 family processors. Note that you will need a suitable
1868 Linux distribution to support this.
1870 config PAGE_SIZE_32KB
1872 depends on CPU_CAVIUM_OCTEON
1874 Using 32kB page size will result in higher performance kernel at
1875 the price of higher memory consumption. This option is available
1876 only on cnMIPS cores. Note that you will need a suitable Linux
1877 distribution to support this.
1879 config PAGE_SIZE_64KB
1881 depends on !CPU_R3000 && !CPU_TX39XX
1883 Using 64kB page size will result in higher performance kernel at
1884 the price of higher memory consumption. This option is available on
1885 all non-R3000 family processor. Not that at the time of this
1886 writing this option is still high experimental.
1890 config FORCE_MAX_ZONEORDER
1891 int "Maximum zone order"
1892 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1893 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1894 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1895 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1896 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1897 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1901 The kernel memory allocator divides physically contiguous memory
1902 blocks into "zones", where each zone is a power of two number of
1903 pages. This option selects the largest power of two that the kernel
1904 keeps in the memory allocator. If you need to allocate very large
1905 blocks of physically contiguous memory, then you may need to
1906 increase this value.
1908 This config option is actually maximum order plus one. For example,
1909 a value of 11 means that the largest free memory block is 2^10 pages.
1911 The page size is not necessarily 4KB. Keep this in mind
1912 when choosing a value for this option.
1915 bool "Use GIC global counter for clock events"
1916 depends on MIPS_GIC && !MIPS_SEAD3
1918 Use the GIC global counter for the clock events. The R4K clock
1919 event driver is always present, so if the platform ends up not
1920 detecting a GIC, it will fall back to the R4K timer for the
1921 generation of clock events.
1926 config IP22_CPU_SCACHE
1931 # Support for a MIPS32 / MIPS64 style S-caches
1933 config MIPS_CPU_SCACHE
1937 config R5000_CPU_SCACHE
1941 config RM7000_CPU_SCACHE
1945 config SIBYTE_DMA_PAGEOPS
1946 bool "Use DMA to clear/copy pages"
1949 Instead of using the CPU to zero and copy pages, use a Data Mover
1950 channel. These DMA channels are otherwise unused by the standard
1951 SiByte Linux port. Seems to give a small performance benefit.
1953 config CPU_HAS_PREFETCH
1956 config CPU_GENERIC_DUMP_TLB
1958 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1962 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1964 config CPU_R4K_CACHE_TLB
1966 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1969 bool "MIPS MT SMP support (1 TC on each available VPE)"
1970 depends on SYS_SUPPORTS_MULTITHREADING
1971 select CPU_MIPSR2_IRQ_VI
1972 select CPU_MIPSR2_IRQ_EI
1978 select SYS_SUPPORTS_SMP
1979 select SYS_SUPPORTS_SCHED_SMT
1980 select MIPS_PERF_SHARED_TC_COUNTERS
1982 This is a kernel model which is known as SMVP. This is supported
1983 on cores with the MT ASE and uses the available VPEs to implement
1984 virtual processors which supports SMP. This is equivalent to the
1985 Intel Hyperthreading feature. For further information go to
1986 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1992 bool "SMT (multithreading) scheduler support"
1993 depends on SYS_SUPPORTS_SCHED_SMT
1996 SMT scheduler support improves the CPU scheduler's decision making
1997 when dealing with MIPS MT enabled cores at a cost of slightly
1998 increased overhead in some places. If unsure say N here.
2000 config SYS_SUPPORTS_SCHED_SMT
2003 config SYS_SUPPORTS_MULTITHREADING
2006 config MIPS_MT_FPAFF
2007 bool "Dynamic FPU affinity for FP-intensive threads"
2009 depends on MIPS_MT_SMP
2011 config MIPS_VPE_LOADER
2012 bool "VPE loader support."
2013 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2014 select CPU_MIPSR2_IRQ_VI
2015 select CPU_MIPSR2_IRQ_EI
2018 Includes a loader for loading an elf relocatable object
2019 onto another VPE and running it.
2021 config MIPS_VPE_LOADER_CMP
2024 depends on MIPS_VPE_LOADER && MIPS_CMP
2026 config MIPS_VPE_LOADER_MT
2029 depends on MIPS_VPE_LOADER && !MIPS_CMP
2031 config MIPS_VPE_LOADER_TOM
2032 bool "Load VPE program into memory hidden from linux"
2033 depends on MIPS_VPE_LOADER
2036 The loader can use memory that is present but has been hidden from
2037 Linux using the kernel command line option "mem=xxMB". It's up to
2038 you to ensure the amount you put in the option and the space your
2039 program requires is less or equal to the amount physically present.
2041 config MIPS_VPE_APSP_API
2042 bool "Enable support for AP/SP API (RTLX)"
2043 depends on MIPS_VPE_LOADER
2046 config MIPS_VPE_APSP_API_CMP
2049 depends on MIPS_VPE_APSP_API && MIPS_CMP
2051 config MIPS_VPE_APSP_API_MT
2054 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2057 bool "MIPS CMP framework support (DEPRECATED)"
2058 depends on SYS_SUPPORTS_MIPS_CMP
2062 select SYS_SUPPORTS_SMP
2063 select WEAK_ORDERING
2066 Select this if you are using a bootloader which implements the "CMP
2067 framework" protocol (ie. YAMON) and want your kernel to make use of
2068 its ability to start secondary CPUs.
2070 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2074 bool "MIPS Coherent Processing System support"
2075 depends on SYS_SUPPORTS_MIPS_CPS
2078 select MIPS_CPS_PM if HOTPLUG_CPU
2081 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2082 select SYS_SUPPORTS_HOTPLUG_CPU
2083 select SYS_SUPPORTS_SMP
2084 select WEAK_ORDERING
2086 Select this if you wish to run an SMP kernel across multiple cores
2087 within a MIPS Coherent Processing System. When this option is
2088 enabled the kernel will probe for other cores and boot them with
2089 no external assistance. It is safe to enable this when hardware
2090 support is unavailable.
2106 config SB1_PASS_1_WORKAROUNDS
2108 depends on CPU_SB1_PASS_1
2111 config SB1_PASS_2_WORKAROUNDS
2113 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2116 config SB1_PASS_2_1_WORKAROUNDS
2118 depends on CPU_SB1 && CPU_SB1_PASS_2
2122 config 64BIT_PHYS_ADDR
2125 config ARCH_PHYS_ADDR_T_64BIT
2126 def_bool 64BIT_PHYS_ADDR
2128 config CPU_HAS_SMARTMIPS
2129 depends on SYS_SUPPORTS_SMARTMIPS
2130 bool "Support for the SmartMIPS ASE"
2132 SmartMIPS is a extension of the MIPS32 architecture aimed at
2133 increased security at both hardware and software level for
2134 smartcards. Enabling this option will allow proper use of the
2135 SmartMIPS instructions by Linux applications. However a kernel with
2136 this option will not work on a MIPS core without SmartMIPS core. If
2137 you don't know you probably don't have SmartMIPS and should say N
2140 config CPU_MICROMIPS
2141 depends on SYS_SUPPORTS_MICROMIPS
2142 bool "Build kernel using microMIPS ISA"
2144 When this option is enabled the kernel will be built using the
2148 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2149 depends on CPU_SUPPORTS_MSA
2150 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2152 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2153 and a set of SIMD instructions to operate on them. When this option
2154 is enabled the kernel will support allocating & switching MSA
2155 vector register contexts. If you know that your kernel will only be
2156 running on CPUs which do not support MSA or that your userland will
2157 not be making use of it then you may wish to say N here to reduce
2158 the size & complexity of your kernel.
2169 # Vectored interrupt mode is an R2 feature
2171 config CPU_MIPSR2_IRQ_VI
2175 # Extended interrupt mode is an R2 feature
2177 config CPU_MIPSR2_IRQ_EI
2182 depends on !CPU_R3000
2188 config CPU_DADDI_WORKAROUNDS
2191 config CPU_R4000_WORKAROUNDS
2193 select CPU_R4400_WORKAROUNDS
2195 config CPU_R4400_WORKAROUNDS
2199 # - Highmem only makes sense for the 32-bit kernel.
2200 # - The current highmem code will only work properly on physically indexed
2201 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2202 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2203 # moment we protect the user and offer the highmem option only on machines
2204 # where it's known to be safe. This will not offer highmem on a few systems
2205 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2206 # indexed CPUs but we're playing safe.
2207 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2208 # know they might have memory configurations that could make use of highmem
2212 bool "High Memory Support"
2213 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2215 config CPU_SUPPORTS_HIGHMEM
2218 config SYS_SUPPORTS_HIGHMEM
2221 config SYS_SUPPORTS_SMARTMIPS
2224 config SYS_SUPPORTS_MICROMIPS
2227 config SYS_SUPPORTS_MIPS16
2230 This option must be set if a kernel might be executed on a MIPS16-
2231 enabled CPU even if MIPS16 is not actually being used. In other
2232 words, it makes the kernel MIPS16-tolerant.
2234 config CPU_SUPPORTS_MSA
2237 config ARCH_FLATMEM_ENABLE
2239 depends on !NUMA && !CPU_LOONGSON2
2241 config ARCH_DISCONTIGMEM_ENABLE
2243 default y if SGI_IP27
2245 Say Y to support efficient handling of discontiguous physical memory,
2246 for architectures which are either NUMA (Non-Uniform Memory Access)
2247 or have huge holes in the physical address space for other reasons.
2248 See <file:Documentation/vm/numa> for more.
2250 config ARCH_SPARSEMEM_ENABLE
2252 select SPARSEMEM_STATIC
2256 depends on SYS_SUPPORTS_NUMA
2258 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2259 Access). This option improves performance on systems with more
2260 than two nodes; on two node systems it is generally better to
2261 leave it disabled; on single node systems disable this option
2264 config SYS_SUPPORTS_NUMA
2270 depends on NEED_MULTIPLE_NODES
2272 config HW_PERF_EVENTS
2273 bool "Enable hardware performance counter support for perf events"
2274 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2277 Enable hardware performance counter support for perf events. If
2278 disabled, perf events will use software events only.
2283 bool "Multi-Processing support"
2284 depends on SYS_SUPPORTS_SMP
2286 This enables support for systems with more than one CPU. If you have
2287 a system with only one CPU, say N. If you have a system with more
2288 than one CPU, say Y.
2290 If you say N here, the kernel will run on uni- and multiprocessor
2291 machines, but will use only one CPU of a multiprocessor machine. If
2292 you say Y here, the kernel will run on many, but not all,
2293 uniprocessor machines. On a uniprocessor machine, the kernel
2294 will run faster if you say N here.
2296 People using multiprocessor machines who say Y here should also say
2297 Y to "Enhanced Real Time Clock Support", below.
2299 See also the SMP-HOWTO available at
2300 <http://www.tldp.org/docs.html#howto>.
2302 If you don't know what to do here, say N.
2307 config SYS_SUPPORTS_MIPS_CMP
2310 config SYS_SUPPORTS_MIPS_CPS
2313 config SYS_SUPPORTS_SMP
2316 config NR_CPUS_DEFAULT_4
2319 config NR_CPUS_DEFAULT_8
2322 config NR_CPUS_DEFAULT_16
2325 config NR_CPUS_DEFAULT_32
2328 config NR_CPUS_DEFAULT_64
2332 int "Maximum number of CPUs (2-256)"
2335 default "4" if NR_CPUS_DEFAULT_4
2336 default "8" if NR_CPUS_DEFAULT_8
2337 default "16" if NR_CPUS_DEFAULT_16
2338 default "32" if NR_CPUS_DEFAULT_32
2339 default "64" if NR_CPUS_DEFAULT_64
2341 This allows you to specify the maximum number of CPUs which this
2342 kernel will support. The maximum supported value is 32 for 32-bit
2343 kernel and 64 for 64-bit kernels; the minimum value which makes
2344 sense is 1 for Qemu (useful only for kernel debugging purposes)
2345 and 2 for all others.
2347 This is purely to save memory - each supported CPU adds
2348 approximately eight kilobytes to the kernel image. For best
2349 performance should round up your number of processors to the next
2352 config MIPS_PERF_SHARED_TC_COUNTERS
2356 # Timer Interrupt Frequency Configuration
2360 prompt "Timer frequency"
2363 Allows the configuration of the timer frequency.
2366 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2369 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2372 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2375 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2378 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2381 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2384 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2388 config SYS_SUPPORTS_48HZ
2391 config SYS_SUPPORTS_100HZ
2394 config SYS_SUPPORTS_128HZ
2397 config SYS_SUPPORTS_250HZ
2400 config SYS_SUPPORTS_256HZ
2403 config SYS_SUPPORTS_1000HZ
2406 config SYS_SUPPORTS_1024HZ
2409 config SYS_SUPPORTS_ARBIT_HZ
2411 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2412 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2413 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2414 !SYS_SUPPORTS_1024HZ
2419 default 100 if HZ_100
2420 default 128 if HZ_128
2421 default 250 if HZ_250
2422 default 256 if HZ_256
2423 default 1000 if HZ_1000
2424 default 1024 if HZ_1024
2426 source "kernel/Kconfig.preempt"
2429 bool "Kexec system call"
2431 kexec is a system call that implements the ability to shutdown your
2432 current kernel, and to start another kernel. It is like a reboot
2433 but it is independent of the system firmware. And like a reboot
2434 you can start any kernel with it, not just Linux.
2436 The name comes from the similarity to the exec system call.
2438 It is an ongoing process to be certain the hardware in a machine
2439 is properly shutdown, so do not be surprised if this code does not
2440 initially work for you. As of this writing the exact hardware
2441 interface is strongly in flux, so no good recommendation can be
2445 bool "Kernel crash dumps"
2447 Generate crash dump after being started by kexec.
2448 This should be normally only set in special crash dump kernels
2449 which are loaded in the main kernel with kexec-tools into
2450 a specially reserved region and then later executed after
2451 a crash by kdump/kexec. The crash dump kernel must be compiled
2452 to a memory address not used by the main kernel or firmware using
2455 config PHYSICAL_START
2456 hex "Physical address where the kernel is loaded"
2457 default "0xffffffff84000000" if 64BIT
2458 default "0x84000000" if 32BIT
2459 depends on CRASH_DUMP
2461 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2462 If you plan to use kernel for capturing the crash dump change
2463 this value to start of the reserved region (the "X" value as
2464 specified in the "crashkernel=YM@XM" command line boot parameter
2465 passed to the panic-ed kernel).
2468 bool "Enable seccomp to safely compute untrusted bytecode"
2472 This kernel feature is useful for number crunching applications
2473 that may need to compute untrusted bytecode during their
2474 execution. By using pipes or other transports made available to
2475 the process as file descriptors supporting the read/write
2476 syscalls, it's possible to isolate those applications in
2477 their own address space using seccomp. Once seccomp is
2478 enabled via /proc/<pid>/seccomp, it cannot be disabled
2479 and the task is only allowed to execute a few safe syscalls
2480 defined by each seccomp mode.
2482 If unsure, say Y. Only embedded should say N here.
2484 config MIPS_O32_FP64_SUPPORT
2485 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2486 depends on 32BIT || MIPS32_O32
2488 When this is enabled, the kernel will support use of 64-bit floating
2489 point registers with binaries using the O32 ABI along with the
2490 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2491 32-bit MIPS systems this support is at the cost of increasing the
2492 size and complexity of the compiled FPU emulator. Thus if you are
2493 running a MIPS32 system and know that none of your userland binaries
2494 will require 64-bit floating point, you may wish to reduce the size
2495 of your kernel & potentially improve FP emulation performance by
2498 Although binutils currently supports use of this flag the details
2499 concerning its effect upon the O32 ABI in userland are still being
2500 worked on. In order to avoid userland becoming dependant upon current
2501 behaviour before the details have been finalised, this option should
2502 be considered experimental and only enabled by those working upon
2510 select OF_EARLY_FLATTREE
2518 config LOCKDEP_SUPPORT
2522 config STACKTRACE_SUPPORT
2526 source "init/Kconfig"
2528 source "kernel/Kconfig.freezer"
2530 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2538 bool "Support for PCI controller"
2539 depends on HW_HAS_PCI
2541 select NO_GENERIC_PCI_IOPORT_MAP
2543 Find out whether you have a PCI motherboard. PCI is the name of a
2544 bus system, i.e. the way the CPU talks to the other stuff inside
2545 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2549 bool "Support for HT-linked PCI"
2551 depends on CPU_LOONGSON3
2555 Loongson family machines use Hyper-Transport bus for inter-core
2556 connection and device connection. The PCI bus is a subordinate
2557 linked at HT. Choose Y for Loongson-3 based machines.
2562 source "drivers/pci/Kconfig"
2564 source "drivers/pci/pcie/Kconfig"
2567 # ISA support is now enabled via select. Too many systems still have the one
2568 # or other ISA chip on the board that users don't know about so don't expect
2569 # users to choose the right thing ...
2576 depends on HW_HAS_EISA
2578 select GENERIC_ISA_DMA
2580 The Extended Industry Standard Architecture (EISA) bus was
2581 developed as an open alternative to the IBM MicroChannel bus.
2583 The EISA bus provided some of the features of the IBM MicroChannel
2584 bus while maintaining backward compatibility with cards made for
2585 the older ISA bus. The EISA bus saw limited use between 1988 and
2586 1995 when it was made obsolete by the PCI bus.
2588 Say Y here if you are building a kernel for an EISA-based machine.
2592 source "drivers/eisa/Kconfig"
2595 bool "TURBOchannel support"
2596 depends on MACH_DECSTATION
2598 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2599 processors. TURBOchannel programming specifications are available
2601 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2603 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2604 Linux driver support status is documented at:
2605 <http://www.linux-mips.org/wiki/DECstation>
2615 select MIPS_EXTERNAL_TIMER
2623 source "drivers/pcmcia/Kconfig"
2625 source "drivers/pci/hotplug/Kconfig"
2628 tristate "RapidIO support"
2632 If you say Y here, the kernel will include drivers and
2633 infrastructure code to support RapidIO interconnect devices.
2635 source "drivers/rapidio/Kconfig"
2639 menu "Executable file formats"
2641 source "fs/Kconfig.binfmt"
2646 config MIPS32_COMPAT
2647 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2650 Select this option if you want Linux/MIPS 32-bit binary
2651 compatibility. Since all software available for Linux/MIPS is
2652 currently 32-bit you should say Y here.
2656 depends on MIPS32_COMPAT
2657 select ARCH_WANT_OLD_COMPAT_IPC
2660 config SYSVIPC_COMPAT
2662 depends on COMPAT && SYSVIPC
2666 bool "Kernel support for o32 binaries"
2667 depends on MIPS32_COMPAT
2669 Select this option if you want to run o32 binaries. These are pure
2670 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2671 existing binaries are in this format.
2676 bool "Kernel support for n32 binaries"
2677 depends on MIPS32_COMPAT
2679 Select this option if you want to run n32 binaries. These are
2680 64-bit binaries using 32-bit quantities for addressing and certain
2681 data that would normally be 64-bit. They are used in special
2688 default y if MIPS32_O32 || MIPS32_N32
2692 menu "Power management options"
2694 config ARCH_HIBERNATION_POSSIBLE
2696 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2698 config ARCH_SUSPEND_POSSIBLE
2700 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2702 source "kernel/power/Kconfig"
2706 config MIPS_EXTERNAL_TIMER
2709 menu "CPU Power Management"
2711 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2712 source "drivers/cpufreq/Kconfig"
2715 source "drivers/cpuidle/Kconfig"
2719 source "net/Kconfig"
2721 source "drivers/Kconfig"
2723 source "drivers/firmware/Kconfig"
2727 source "arch/mips/Kconfig.debug"
2729 source "security/Kconfig"
2731 source "crypto/Kconfig"
2733 source "lib/Kconfig"
2735 source "arch/mips/kvm/Kconfig"