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_FUNCTION_TRACE_MCOUNT_TEST
19 select HAVE_DYNAMIC_FTRACE
20 select HAVE_FTRACE_MCOUNT_RECORD
21 select HAVE_C_RECORDMCOUNT
22 select HAVE_FUNCTION_GRAPH_TRACER
24 select HAVE_KRETPROBES
25 select HAVE_DEBUG_KMEMLEAK
26 select HAVE_SYSCALL_TRACEPOINTS
27 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
28 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
29 select RTC_LIB if !MACH_LOONGSON
30 select GENERIC_ATOMIC64 if !64BIT
31 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
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
57 menu "Machine selection"
64 bool "Alchemy processor based machines"
65 select 64BIT_PHYS_ADDR
69 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
70 select SYS_HAS_CPU_MIPS32_R1
71 select SYS_SUPPORTS_32BIT_KERNEL
72 select SYS_SUPPORTS_APM_EMULATION
73 select ARCH_REQUIRE_GPIOLIB
74 select SYS_SUPPORTS_ZBOOT
78 bool "Texas Instruments AR7"
80 select DMA_NONCOHERENT
86 select SYS_HAS_CPU_MIPS32_R1
87 select SYS_HAS_EARLY_PRINTK
88 select SYS_SUPPORTS_32BIT_KERNEL
89 select SYS_SUPPORTS_LITTLE_ENDIAN
90 select SYS_SUPPORTS_MIPS16
91 select SYS_SUPPORTS_ZBOOT_UART16550
92 select ARCH_REQUIRE_GPIOLIB
96 Support for the Texas Instruments AR7 System-on-a-Chip
97 family: TNETD7100, 7200 and 7300.
100 bool "Atheros AR71XX/AR724X/AR913X based boards"
101 select ARCH_REQUIRE_GPIOLIB
105 select DMA_NONCOHERENT
110 select SYS_HAS_CPU_MIPS32_R2
111 select SYS_HAS_EARLY_PRINTK
112 select SYS_SUPPORTS_32BIT_KERNEL
113 select SYS_SUPPORTS_BIG_ENDIAN
114 select SYS_SUPPORTS_MIPS16
116 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
119 bool "Broadcom BCM47XX based boards"
120 select ARCH_WANT_OPTIONAL_GPIOLIB
124 select DMA_NONCOHERENT
127 select SYS_HAS_CPU_MIPS32_R1
128 select NO_EXCEPT_FILL
129 select SYS_SUPPORTS_32BIT_KERNEL
130 select SYS_SUPPORTS_LITTLE_ENDIAN
131 select SYS_SUPPORTS_MIPS16
132 select SYS_HAS_EARLY_PRINTK
133 select USE_GENERIC_EARLY_PRINTK_8250
135 Support for BCM47XX based boards
138 bool "Broadcom BCM63XX based boards"
143 select DMA_NONCOHERENT
145 select SYS_SUPPORTS_32BIT_KERNEL
146 select SYS_SUPPORTS_BIG_ENDIAN
147 select SYS_HAS_EARLY_PRINTK
149 select ARCH_REQUIRE_GPIOLIB
151 select MIPS_L1_CACHE_SHIFT_4
153 Support for BCM63XX based boards
160 select DMA_NONCOHERENT
166 select PCI_GT64XXX_PCI0
168 select SYS_HAS_CPU_NEVADA
169 select SYS_HAS_EARLY_PRINTK
170 select SYS_SUPPORTS_32BIT_KERNEL
171 select SYS_SUPPORTS_64BIT_KERNEL
172 select SYS_SUPPORTS_LITTLE_ENDIAN
173 select USE_GENERIC_EARLY_PRINTK_8250
175 config MACH_DECSTATION
179 select CEVT_R4K if CPU_R4X00
181 select CSRC_R4K if CPU_R4X00
182 select CPU_DADDI_WORKAROUNDS if 64BIT
183 select CPU_R4000_WORKAROUNDS if 64BIT
184 select CPU_R4400_WORKAROUNDS if 64BIT
185 select DMA_NONCOHERENT
188 select SYS_HAS_CPU_R3000
189 select SYS_HAS_CPU_R4X00
190 select SYS_SUPPORTS_32BIT_KERNEL
191 select SYS_SUPPORTS_64BIT_KERNEL
192 select SYS_SUPPORTS_LITTLE_ENDIAN
193 select SYS_SUPPORTS_128HZ
194 select SYS_SUPPORTS_256HZ
195 select SYS_SUPPORTS_1024HZ
196 select MIPS_L1_CACHE_SHIFT_4
198 This enables support for DEC's MIPS based workstations. For details
199 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
200 DECstation porting pages on <http://decstation.unix-ag.org/>.
202 If you have one of the following DECstation Models you definitely
203 want to choose R4xx0 for the CPU Type:
210 otherwise choose R3000.
213 bool "Jazz family of machines"
216 select ARCH_MAY_HAVE_PC_FDC
219 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
220 select GENERIC_ISA_DMA
221 select HAVE_PCSPKR_PLATFORM
226 select SYS_HAS_CPU_R4X00
227 select SYS_SUPPORTS_32BIT_KERNEL
228 select SYS_SUPPORTS_64BIT_KERNEL
229 select SYS_SUPPORTS_100HZ
231 This a family of machines based on the MIPS R4030 chipset which was
232 used by several vendors to build RISC/os and Windows NT workstations.
233 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
234 Olivetti M700-10 workstations.
237 bool "Ingenic JZ4740 based machines"
238 select SYS_HAS_CPU_MIPS32_R1
239 select SYS_SUPPORTS_32BIT_KERNEL
240 select SYS_SUPPORTS_LITTLE_ENDIAN
241 select SYS_SUPPORTS_ZBOOT_UART16550
242 select DMA_NONCOHERENT
244 select ARCH_REQUIRE_GPIOLIB
245 select SYS_HAS_EARLY_PRINTK
247 select GENERIC_IRQ_CHIP
250 bool "Lantiq based platforms"
251 select DMA_NONCOHERENT
255 select SYS_HAS_CPU_MIPS32_R1
256 select SYS_HAS_CPU_MIPS32_R2
257 select SYS_SUPPORTS_BIG_ENDIAN
258 select SYS_SUPPORTS_32BIT_KERNEL
259 select SYS_SUPPORTS_MIPS16
260 select SYS_SUPPORTS_MULTITHREADING
261 select SYS_HAS_EARLY_PRINTK
262 select ARCH_REQUIRE_GPIOLIB
265 select HAVE_MACH_CLKDEV
269 select PINCTRL_LANTIQ
272 bool "LASAT Networks platforms"
276 select DMA_NONCOHERENT
277 select SYS_HAS_EARLY_PRINTK
280 select PCI_GT64XXX_PCI0
282 select R5000_CPU_SCACHE
283 select SYS_HAS_CPU_R5000
284 select SYS_SUPPORTS_32BIT_KERNEL
285 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
286 select SYS_SUPPORTS_LITTLE_ENDIAN
289 bool "Loongson family of machines"
290 select SYS_SUPPORTS_ZBOOT
292 This enables the support of Loongson family of machines.
294 Loongson is a family of general-purpose MIPS-compatible CPUs.
295 developed at Institute of Computing Technology (ICT),
296 Chinese Academy of Sciences (CAS) in the People's Republic
297 of China. The chief architect is Professor Weiwu Hu.
299 config MACH_LOONGSON1
300 bool "Loongson 1 family of machines"
301 select SYS_SUPPORTS_ZBOOT
303 This enables support for the Loongson 1 based machines.
305 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
306 the ICT (Institute of Computing Technology) and the Chinese Academy
310 bool "MIPS Malta board"
311 select ARCH_MAY_HAVE_PC_FDC
317 select DMA_MAYBE_COHERENT
318 select GENERIC_ISA_DMA
319 select HAVE_PCSPKR_PLATFORM
326 select MIPS_CPU_SCACHE
327 select PCI_GT64XXX_PCI0
330 select SYS_HAS_CPU_MIPS32_R1
331 select SYS_HAS_CPU_MIPS32_R2
332 select SYS_HAS_CPU_MIPS32_R3_5
333 select SYS_HAS_CPU_MIPS64_R1
334 select SYS_HAS_CPU_MIPS64_R2
335 select SYS_HAS_CPU_NEVADA
336 select SYS_HAS_CPU_RM7000
337 select SYS_SUPPORTS_32BIT_KERNEL
338 select SYS_SUPPORTS_64BIT_KERNEL
339 select SYS_SUPPORTS_BIG_ENDIAN
340 select SYS_SUPPORTS_LITTLE_ENDIAN
341 select SYS_SUPPORTS_MIPS_CMP
342 select SYS_SUPPORTS_MIPS_CPS
343 select SYS_SUPPORTS_MIPS16
344 select SYS_SUPPORTS_MULTITHREADING
345 select SYS_SUPPORTS_SMARTMIPS
346 select SYS_SUPPORTS_ZBOOT
348 This enables support for the MIPS Technologies Malta evaluation
352 bool "MIPS SEAD3 board"
358 select CPU_MIPSR2_IRQ_VI
359 select CPU_MIPSR2_IRQ_EI
360 select DMA_NONCOHERENT
365 select SYS_HAS_CPU_MIPS32_R1
366 select SYS_HAS_CPU_MIPS32_R2
367 select SYS_HAS_CPU_MIPS64_R1
368 select SYS_HAS_EARLY_PRINTK
369 select SYS_SUPPORTS_32BIT_KERNEL
370 select SYS_SUPPORTS_64BIT_KERNEL
371 select SYS_SUPPORTS_BIG_ENDIAN
372 select SYS_SUPPORTS_LITTLE_ENDIAN
373 select SYS_SUPPORTS_SMARTMIPS
374 select SYS_SUPPORTS_MICROMIPS
375 select SYS_SUPPORTS_MIPS16
376 select USB_EHCI_BIG_ENDIAN_DESC
377 select USB_EHCI_BIG_ENDIAN_MMIO
380 This enables support for the MIPS Technologies SEAD3 evaluation
384 bool "NEC EMMA2RH Mark-eins board"
388 This enables support for the NEC Electronics Mark-eins boards.
391 bool "NEC VR4100 series based machines"
394 select SYS_HAS_CPU_VR41XX
395 select SYS_SUPPORTS_MIPS16
396 select ARCH_REQUIRE_GPIOLIB
399 bool "NXP STB220 board"
402 Support for NXP Semiconductors STB220 Development Board.
409 Support for NXP Semiconductors STB225 Development Board.
412 bool "PMC-Sierra MSP chipsets"
415 select DMA_NONCOHERENT
417 select NO_EXCEPT_FILL
419 select SYS_HAS_CPU_MIPS32_R1
420 select SYS_HAS_CPU_MIPS32_R2
421 select SYS_SUPPORTS_32BIT_KERNEL
422 select SYS_SUPPORTS_BIG_ENDIAN
423 select SYS_SUPPORTS_MIPS16
426 select SERIAL_8250_CONSOLE
427 select USB_EHCI_BIG_ENDIAN_MMIO
428 select USB_EHCI_BIG_ENDIAN_DESC
430 This adds support for the PMC-Sierra family of Multi-Service
431 Processor System-On-A-Chips. These parts include a number
432 of integrated peripherals, interfaces and DSPs in addition to
433 a variety of MIPS cores.
436 bool "Ralink based machines"
440 select DMA_NONCOHERENT
443 select SYS_HAS_CPU_MIPS32_R1
444 select SYS_HAS_CPU_MIPS32_R2
445 select SYS_SUPPORTS_32BIT_KERNEL
446 select SYS_SUPPORTS_LITTLE_ENDIAN
447 select SYS_SUPPORTS_MIPS16
448 select SYS_HAS_EARLY_PRINTK
449 select HAVE_MACH_CLKDEV
451 select ARCH_HAS_RESET_CONTROLLER
452 select RESET_CONTROLLER
455 bool "SGI IP22 (Indy/Indigo2)"
461 select DEFAULT_SGI_PARTITION
462 select DMA_NONCOHERENT
466 select IP22_CPU_SCACHE
468 select GENERIC_ISA_DMA_SUPPORT_BROKEN
470 select SGI_HAS_INDYDOG
476 select SYS_HAS_CPU_R4X00
477 select SYS_HAS_CPU_R5000
479 # Disable EARLY_PRINTK for now since it leads to overwritten prom
480 # memory during early boot on some machines.
482 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
483 # for a more details discussion
485 # select SYS_HAS_EARLY_PRINTK
486 select SYS_SUPPORTS_32BIT_KERNEL
487 select SYS_SUPPORTS_64BIT_KERNEL
488 select SYS_SUPPORTS_BIG_ENDIAN
489 select MIPS_L1_CACHE_SHIFT_7
491 This are the SGI Indy, Challenge S and Indigo2, as well as certain
492 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
493 that runs on these, say Y here.
496 bool "SGI IP27 (Origin200/2000)"
500 select DEFAULT_SGI_PARTITION
502 select SYS_HAS_EARLY_PRINTK
504 select NR_CPUS_DEFAULT_64
505 select SYS_HAS_CPU_R10000
506 select SYS_SUPPORTS_64BIT_KERNEL
507 select SYS_SUPPORTS_BIG_ENDIAN
508 select SYS_SUPPORTS_NUMA
509 select SYS_SUPPORTS_SMP
510 select MIPS_L1_CACHE_SHIFT_7
512 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
513 workstations. To compile a Linux kernel that runs on these, say Y
517 bool "SGI IP28 (Indigo2 R10k)"
523 select DEFAULT_SGI_PARTITION
524 select DMA_NONCOHERENT
525 select GENERIC_ISA_DMA_SUPPORT_BROKEN
531 select SGI_HAS_INDYDOG
537 select SYS_HAS_CPU_R10000
539 # Disable EARLY_PRINTK for now since it leads to overwritten prom
540 # memory during early boot on some machines.
542 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
543 # for a more details discussion
545 # select SYS_HAS_EARLY_PRINTK
546 select SYS_SUPPORTS_64BIT_KERNEL
547 select SYS_SUPPORTS_BIG_ENDIAN
549 This is the SGI Indigo2 with R10000 processor. To compile a Linux
550 kernel that runs on these, say Y here.
559 select DMA_NONCOHERENT
562 select R5000_CPU_SCACHE
563 select RM7000_CPU_SCACHE
564 select SYS_HAS_CPU_R5000
565 select SYS_HAS_CPU_R10000 if BROKEN
566 select SYS_HAS_CPU_RM7000
567 select SYS_HAS_CPU_NEVADA
568 select SYS_SUPPORTS_64BIT_KERNEL
569 select SYS_SUPPORTS_BIG_ENDIAN
571 If you want this kernel to run on SGI O2 workstation, say Y here.
574 bool "Sibyte BCM91120C-CRhine"
577 select SIBYTE_BCM1120
579 select SYS_HAS_CPU_SB1
580 select SYS_SUPPORTS_BIG_ENDIAN
581 select SYS_SUPPORTS_LITTLE_ENDIAN
584 bool "Sibyte BCM91120x-Carmel"
587 select SIBYTE_BCM1120
589 select SYS_HAS_CPU_SB1
590 select SYS_SUPPORTS_BIG_ENDIAN
591 select SYS_SUPPORTS_LITTLE_ENDIAN
594 bool "Sibyte BCM91125C-CRhone"
597 select SIBYTE_BCM1125
599 select SYS_HAS_CPU_SB1
600 select SYS_SUPPORTS_BIG_ENDIAN
601 select SYS_SUPPORTS_HIGHMEM
602 select SYS_SUPPORTS_LITTLE_ENDIAN
605 bool "Sibyte BCM91125E-Rhone"
608 select SIBYTE_BCM1125H
610 select SYS_HAS_CPU_SB1
611 select SYS_SUPPORTS_BIG_ENDIAN
612 select SYS_SUPPORTS_LITTLE_ENDIAN
615 bool "Sibyte BCM91250A-SWARM"
618 select HAVE_PATA_PLATFORM
621 select SYS_HAS_CPU_SB1
622 select SYS_SUPPORTS_BIG_ENDIAN
623 select SYS_SUPPORTS_HIGHMEM
624 select SYS_SUPPORTS_LITTLE_ENDIAN
625 select ZONE_DMA32 if 64BIT
627 config SIBYTE_LITTLESUR
628 bool "Sibyte BCM91250C2-LittleSur"
631 select HAVE_PATA_PLATFORM
634 select SYS_HAS_CPU_SB1
635 select SYS_SUPPORTS_BIG_ENDIAN
636 select SYS_SUPPORTS_HIGHMEM
637 select SYS_SUPPORTS_LITTLE_ENDIAN
639 config SIBYTE_SENTOSA
640 bool "Sibyte BCM91250E-Sentosa"
645 select SYS_HAS_CPU_SB1
646 select SYS_SUPPORTS_BIG_ENDIAN
647 select SYS_SUPPORTS_LITTLE_ENDIAN
650 bool "Sibyte BCM91480B-BigSur"
653 select NR_CPUS_DEFAULT_4
654 select SIBYTE_BCM1x80
656 select SYS_HAS_CPU_SB1
657 select SYS_SUPPORTS_BIG_ENDIAN
658 select SYS_SUPPORTS_HIGHMEM
659 select SYS_SUPPORTS_LITTLE_ENDIAN
660 select ZONE_DMA32 if 64BIT
663 bool "SNI RM200/300/400"
664 select FW_ARC if CPU_LITTLE_ENDIAN
665 select FW_ARC32 if CPU_LITTLE_ENDIAN
666 select FW_SNIPROM if CPU_BIG_ENDIAN
667 select ARCH_MAY_HAVE_PC_FDC
671 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
672 select DMA_NONCOHERENT
673 select GENERIC_ISA_DMA
674 select HAVE_PCSPKR_PLATFORM
681 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
682 select SYS_HAS_CPU_R4X00
683 select SYS_HAS_CPU_R5000
684 select SYS_HAS_CPU_R10000
685 select R5000_CPU_SCACHE
686 select SYS_HAS_EARLY_PRINTK
687 select SYS_SUPPORTS_32BIT_KERNEL
688 select SYS_SUPPORTS_64BIT_KERNEL
689 select SYS_SUPPORTS_BIG_ENDIAN
690 select SYS_SUPPORTS_HIGHMEM
691 select SYS_SUPPORTS_LITTLE_ENDIAN
693 The SNI RM200/300/400 are MIPS-based machines manufactured by
694 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
695 Technology and now in turn merged with Fujitsu. Say Y here to
696 support this machine type.
699 bool "Toshiba TX39 series based machines"
702 bool "Toshiba TX49 series based machines"
704 config MIKROTIK_RB532
705 bool "Mikrotik RB532 boards"
708 select DMA_NONCOHERENT
711 select SYS_HAS_CPU_MIPS32_R1
712 select SYS_SUPPORTS_32BIT_KERNEL
713 select SYS_SUPPORTS_LITTLE_ENDIAN
716 select ARCH_REQUIRE_GPIOLIB
717 select MIPS_L1_CACHE_SHIFT_4
719 Support the Mikrotik(tm) RouterBoard 532 series,
720 based on the IDT RC32434 SoC.
722 config CAVIUM_OCTEON_SOC
723 bool "Cavium Networks Octeon SoC based boards"
725 select 64BIT_PHYS_ADDR
727 select SYS_SUPPORTS_64BIT_KERNEL
728 select SYS_SUPPORTS_BIG_ENDIAN
730 select SYS_SUPPORTS_HOTPLUG_CPU
731 select SYS_HAS_EARLY_PRINTK
732 select SYS_HAS_CPU_CAVIUM_OCTEON
737 select ARCH_REQUIRE_GPIOLIB
740 select ARCH_SPARSEMEM_ENABLE
741 select SYS_SUPPORTS_SMP
742 select NR_CPUS_DEFAULT_16
744 This option supports all of the Octeon reference boards from Cavium
745 Networks. It builds a kernel that dynamically determines the Octeon
746 CPU type and supports all known board reference implementations.
747 Some of the supported boards are:
754 Say Y here for most Octeon reference boards.
757 bool "Netlogic XLR/XLS based systems"
760 select SYS_HAS_CPU_XLR
761 select SYS_SUPPORTS_SMP
764 select SYS_SUPPORTS_32BIT_KERNEL
765 select SYS_SUPPORTS_64BIT_KERNEL
766 select 64BIT_PHYS_ADDR
767 select SYS_SUPPORTS_BIG_ENDIAN
768 select SYS_SUPPORTS_HIGHMEM
770 select NR_CPUS_DEFAULT_32
774 select ZONE_DMA32 if 64BIT
776 select SYS_HAS_EARLY_PRINTK
777 select SYS_SUPPORTS_ZBOOT
778 select SYS_SUPPORTS_ZBOOT_UART16550
780 Support for systems based on Netlogic XLR and XLS processors.
781 Say Y here if you have a XLR or XLS based board.
784 bool "Netlogic XLP based systems"
787 select SYS_HAS_CPU_XLP
788 select SYS_SUPPORTS_SMP
790 select SYS_SUPPORTS_32BIT_KERNEL
791 select SYS_SUPPORTS_64BIT_KERNEL
792 select 64BIT_PHYS_ADDR
793 select SYS_SUPPORTS_BIG_ENDIAN
794 select SYS_SUPPORTS_LITTLE_ENDIAN
795 select SYS_SUPPORTS_HIGHMEM
797 select NR_CPUS_DEFAULT_32
801 select ZONE_DMA32 if 64BIT
803 select SYS_HAS_EARLY_PRINTK
805 select SYS_SUPPORTS_ZBOOT
806 select SYS_SUPPORTS_ZBOOT_UART16550
808 This board is based on Netlogic XLP Processor.
809 Say Y here if you have a XLP based board.
812 bool "Para-Virtualized guest system"
816 select SYS_SUPPORTS_64BIT_KERNEL
817 select SYS_SUPPORTS_32BIT_KERNEL
818 select SYS_SUPPORTS_BIG_ENDIAN
819 select SYS_SUPPORTS_SMP
820 select NR_CPUS_DEFAULT_4
821 select SYS_HAS_EARLY_PRINTK
822 select SYS_HAS_CPU_MIPS32_R2
823 select SYS_HAS_CPU_MIPS64_R2
824 select SYS_HAS_CPU_CAVIUM_OCTEON
828 This option supports guest running under ????
832 source "arch/mips/alchemy/Kconfig"
833 source "arch/mips/ath79/Kconfig"
834 source "arch/mips/bcm47xx/Kconfig"
835 source "arch/mips/bcm63xx/Kconfig"
836 source "arch/mips/jazz/Kconfig"
837 source "arch/mips/jz4740/Kconfig"
838 source "arch/mips/lantiq/Kconfig"
839 source "arch/mips/lasat/Kconfig"
840 source "arch/mips/pmcs-msp71xx/Kconfig"
841 source "arch/mips/ralink/Kconfig"
842 source "arch/mips/sgi-ip27/Kconfig"
843 source "arch/mips/sibyte/Kconfig"
844 source "arch/mips/txx9/Kconfig"
845 source "arch/mips/vr41xx/Kconfig"
846 source "arch/mips/cavium-octeon/Kconfig"
847 source "arch/mips/loongson/Kconfig"
848 source "arch/mips/loongson1/Kconfig"
849 source "arch/mips/netlogic/Kconfig"
850 source "arch/mips/paravirt/Kconfig"
854 config RWSEM_GENERIC_SPINLOCK
858 config RWSEM_XCHGADD_ALGORITHM
861 config ARCH_HAS_ILOG2_U32
865 config ARCH_HAS_ILOG2_U64
869 config GENERIC_HWEIGHT
873 config GENERIC_CALIBRATE_DELAY
877 config SCHED_OMIT_FRAME_POINTER
882 # Select some configuration options automatically based on user selections.
887 config ARCH_MAY_HAVE_PC_FDC
932 select ARCH_REQUIRE_GPIOLIB
938 config ARCH_DMA_ADDR_T_64BIT
939 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
941 config DMA_MAYBE_COHERENT
942 select DMA_NONCOHERENT
948 config DMA_NONCOHERENT
950 select NEED_DMA_MAP_STATE
952 config NEED_DMA_MAP_STATE
955 config SYS_HAS_EARLY_PRINTK
959 bool "Support for hot-pluggable CPUs"
960 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
962 Say Y here to allow turning CPUs off and on. CPUs can be
963 controlled through /sys/devices/system/cpu.
964 (Note: power management support will enable this option
965 automatically on SMP systems. )
966 Say N if you want to disable CPU hotplug.
968 config SYS_SUPPORTS_HOTPLUG_CPU
992 config GENERIC_ISA_DMA
994 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
997 config GENERIC_ISA_DMA_SUPPORT_BROKEN
999 select GENERIC_ISA_DMA
1004 config HOLES_IN_ZONE
1008 # Endianness selection. Sufficiently obscure so many users don't know what to
1009 # answer,so we try hard to limit the available choices. Also the use of a
1010 # choice statement should be more obvious to the user.
1013 prompt "Endianness selection"
1015 Some MIPS machines can be configured for either little or big endian
1016 byte order. These modes require different kernels and a different
1017 Linux distribution. In general there is one preferred byteorder for a
1018 particular system but some systems are just as commonly used in the
1019 one or the other endianness.
1021 config CPU_BIG_ENDIAN
1023 depends on SYS_SUPPORTS_BIG_ENDIAN
1025 config CPU_LITTLE_ENDIAN
1026 bool "Little endian"
1027 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1034 config SYS_SUPPORTS_APM_EMULATION
1037 config SYS_SUPPORTS_BIG_ENDIAN
1040 config SYS_SUPPORTS_LITTLE_ENDIAN
1043 config SYS_SUPPORTS_HUGETLBFS
1045 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1048 config MIPS_HUGE_TLB_SUPPORT
1049 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1073 config PCI_GT64XXX_PCI0
1076 config NO_EXCEPT_FILL
1083 select DMA_NONCOHERENT
1085 select SWAP_IO_SPACE
1086 select SYS_HAS_CPU_R5500
1087 select SYS_SUPPORTS_32BIT_KERNEL
1088 select SYS_SUPPORTS_64BIT_KERNEL
1089 select SYS_SUPPORTS_BIG_ENDIAN
1096 select DMA_NONCOHERENT
1097 select SYS_HAS_CPU_MIPS32_R2
1098 select SYS_SUPPORTS_32BIT_KERNEL
1099 select SYS_SUPPORTS_LITTLE_ENDIAN
1100 select SYS_SUPPORTS_BIG_ENDIAN
1101 select SYS_SUPPORTS_MIPS16
1102 select CPU_MIPSR2_IRQ_VI
1108 config SWAP_IO_SPACE
1111 config SGI_HAS_INDYDOG
1123 config SGI_HAS_ZILOG
1126 config SGI_HAS_I8042
1129 config DEFAULT_SGI_PARTITION
1141 config MIPS_L1_CACHE_SHIFT_4
1144 config MIPS_L1_CACHE_SHIFT_5
1147 config MIPS_L1_CACHE_SHIFT_6
1150 config MIPS_L1_CACHE_SHIFT_7
1153 config MIPS_L1_CACHE_SHIFT
1155 default "4" if MIPS_L1_CACHE_SHIFT_4
1156 default "5" if MIPS_L1_CACHE_SHIFT_5
1157 default "6" if MIPS_L1_CACHE_SHIFT_6
1158 default "7" if MIPS_L1_CACHE_SHIFT_7
1161 config HAVE_STD_PC_SERIAL_PORT
1165 bool "ARC console support"
1166 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1170 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1175 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1184 menu "CPU selection"
1190 config CPU_LOONGSON3
1191 bool "Loongson 3 CPU"
1192 depends on SYS_HAS_CPU_LOONGSON3
1193 select CPU_SUPPORTS_64BIT_KERNEL
1194 select CPU_SUPPORTS_HIGHMEM
1195 select CPU_SUPPORTS_HUGEPAGES
1196 select WEAK_ORDERING
1197 select WEAK_REORDERING_BEYOND_LLSC
1199 The Loongson 3 processor implements the MIPS64R2 instruction
1200 set with many extensions.
1202 config CPU_LOONGSON2E
1204 depends on SYS_HAS_CPU_LOONGSON2E
1205 select CPU_LOONGSON2
1207 The Loongson 2E processor implements the MIPS III instruction set
1208 with many extensions.
1210 It has an internal FPGA northbridge, which is compatible to
1213 config CPU_LOONGSON2F
1215 depends on SYS_HAS_CPU_LOONGSON2F
1216 select CPU_LOONGSON2
1217 select ARCH_REQUIRE_GPIOLIB
1219 The Loongson 2F processor implements the MIPS III instruction set
1220 with many extensions.
1222 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1223 have a similar programming interface with FPGA northbridge used in
1226 config CPU_LOONGSON1B
1228 depends on SYS_HAS_CPU_LOONGSON1B
1229 select CPU_LOONGSON1
1231 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1232 release 2 instruction set.
1234 config CPU_MIPS32_R1
1235 bool "MIPS32 Release 1"
1236 depends on SYS_HAS_CPU_MIPS32_R1
1237 select CPU_HAS_PREFETCH
1238 select CPU_SUPPORTS_32BIT_KERNEL
1239 select CPU_SUPPORTS_HIGHMEM
1241 Choose this option to build a kernel for release 1 or later of the
1242 MIPS32 architecture. Most modern embedded systems with a 32-bit
1243 MIPS processor are based on a MIPS32 processor. If you know the
1244 specific type of processor in your system, choose those that one
1245 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1246 Release 2 of the MIPS32 architecture is available since several
1247 years so chances are you even have a MIPS32 Release 2 processor
1248 in which case you should choose CPU_MIPS32_R2 instead for better
1251 config CPU_MIPS32_R2
1252 bool "MIPS32 Release 2"
1253 depends on SYS_HAS_CPU_MIPS32_R2
1254 select CPU_HAS_PREFETCH
1255 select CPU_SUPPORTS_32BIT_KERNEL
1256 select CPU_SUPPORTS_HIGHMEM
1257 select CPU_SUPPORTS_MSA
1260 Choose this option to build a kernel for release 2 or later of the
1261 MIPS32 architecture. Most modern embedded systems with a 32-bit
1262 MIPS processor are based on a MIPS32 processor. If you know the
1263 specific type of processor in your system, choose those that one
1264 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1266 config CPU_MIPS64_R1
1267 bool "MIPS64 Release 1"
1268 depends on SYS_HAS_CPU_MIPS64_R1
1269 select CPU_HAS_PREFETCH
1270 select CPU_SUPPORTS_32BIT_KERNEL
1271 select CPU_SUPPORTS_64BIT_KERNEL
1272 select CPU_SUPPORTS_HIGHMEM
1273 select CPU_SUPPORTS_HUGEPAGES
1275 Choose this option to build a kernel for release 1 or later of the
1276 MIPS64 architecture. Many modern embedded systems with a 64-bit
1277 MIPS processor are based on a MIPS64 processor. If you know the
1278 specific type of processor in your system, choose those that one
1279 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1280 Release 2 of the MIPS64 architecture is available since several
1281 years so chances are you even have a MIPS64 Release 2 processor
1282 in which case you should choose CPU_MIPS64_R2 instead for better
1285 config CPU_MIPS64_R2
1286 bool "MIPS64 Release 2"
1287 depends on SYS_HAS_CPU_MIPS64_R2
1288 select CPU_HAS_PREFETCH
1289 select CPU_SUPPORTS_32BIT_KERNEL
1290 select CPU_SUPPORTS_64BIT_KERNEL
1291 select CPU_SUPPORTS_HIGHMEM
1292 select CPU_SUPPORTS_HUGEPAGES
1293 select CPU_SUPPORTS_MSA
1295 Choose this option to build a kernel for release 2 or later of the
1296 MIPS64 architecture. Many modern embedded systems with a 64-bit
1297 MIPS processor are based on a MIPS64 processor. If you know the
1298 specific type of processor in your system, choose those that one
1299 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1303 depends on SYS_HAS_CPU_R3000
1305 select CPU_SUPPORTS_32BIT_KERNEL
1306 select CPU_SUPPORTS_HIGHMEM
1308 Please make sure to pick the right CPU type. Linux/MIPS is not
1309 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1310 *not* work on R4000 machines and vice versa. However, since most
1311 of the supported machines have an R4000 (or similar) CPU, R4x00
1312 might be a safe bet. If the resulting kernel does not work,
1313 try to recompile with R3000.
1317 depends on SYS_HAS_CPU_TX39XX
1318 select CPU_SUPPORTS_32BIT_KERNEL
1322 depends on SYS_HAS_CPU_VR41XX
1323 select CPU_SUPPORTS_32BIT_KERNEL
1324 select CPU_SUPPORTS_64BIT_KERNEL
1326 The options selects support for the NEC VR4100 series of processors.
1327 Only choose this option if you have one of these processors as a
1328 kernel built with this option will not run on any other type of
1329 processor or vice versa.
1333 depends on SYS_HAS_CPU_R4300
1334 select CPU_SUPPORTS_32BIT_KERNEL
1335 select CPU_SUPPORTS_64BIT_KERNEL
1337 MIPS Technologies R4300-series processors.
1341 depends on SYS_HAS_CPU_R4X00
1342 select CPU_SUPPORTS_32BIT_KERNEL
1343 select CPU_SUPPORTS_64BIT_KERNEL
1344 select CPU_SUPPORTS_HUGEPAGES
1346 MIPS Technologies R4000-series processors other than 4300, including
1347 the R4000, R4400, R4600, and 4700.
1351 depends on SYS_HAS_CPU_TX49XX
1352 select CPU_HAS_PREFETCH
1353 select CPU_SUPPORTS_32BIT_KERNEL
1354 select CPU_SUPPORTS_64BIT_KERNEL
1355 select CPU_SUPPORTS_HUGEPAGES
1359 depends on SYS_HAS_CPU_R5000
1360 select CPU_SUPPORTS_32BIT_KERNEL
1361 select CPU_SUPPORTS_64BIT_KERNEL
1362 select CPU_SUPPORTS_HUGEPAGES
1364 MIPS Technologies R5000-series processors other than the Nevada.
1368 depends on SYS_HAS_CPU_R5432
1369 select CPU_SUPPORTS_32BIT_KERNEL
1370 select CPU_SUPPORTS_64BIT_KERNEL
1371 select CPU_SUPPORTS_HUGEPAGES
1375 depends on SYS_HAS_CPU_R5500
1376 select CPU_SUPPORTS_32BIT_KERNEL
1377 select CPU_SUPPORTS_64BIT_KERNEL
1378 select CPU_SUPPORTS_HUGEPAGES
1380 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1385 depends on SYS_HAS_CPU_R6000
1386 select CPU_SUPPORTS_32BIT_KERNEL
1388 MIPS Technologies R6000 and R6000A series processors. Note these
1389 processors are extremely rare and the support for them is incomplete.
1393 depends on SYS_HAS_CPU_NEVADA
1394 select CPU_SUPPORTS_32BIT_KERNEL
1395 select CPU_SUPPORTS_64BIT_KERNEL
1396 select CPU_SUPPORTS_HUGEPAGES
1398 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1402 depends on SYS_HAS_CPU_R8000
1403 select CPU_HAS_PREFETCH
1404 select CPU_SUPPORTS_64BIT_KERNEL
1406 MIPS Technologies R8000 processors. Note these processors are
1407 uncommon and the support for them is incomplete.
1411 depends on SYS_HAS_CPU_R10000
1412 select CPU_HAS_PREFETCH
1413 select CPU_SUPPORTS_32BIT_KERNEL
1414 select CPU_SUPPORTS_64BIT_KERNEL
1415 select CPU_SUPPORTS_HIGHMEM
1416 select CPU_SUPPORTS_HUGEPAGES
1418 MIPS Technologies R10000-series processors.
1422 depends on SYS_HAS_CPU_RM7000
1423 select CPU_HAS_PREFETCH
1424 select CPU_SUPPORTS_32BIT_KERNEL
1425 select CPU_SUPPORTS_64BIT_KERNEL
1426 select CPU_SUPPORTS_HIGHMEM
1427 select CPU_SUPPORTS_HUGEPAGES
1431 depends on SYS_HAS_CPU_SB1
1432 select CPU_SUPPORTS_32BIT_KERNEL
1433 select CPU_SUPPORTS_64BIT_KERNEL
1434 select CPU_SUPPORTS_HIGHMEM
1435 select CPU_SUPPORTS_HUGEPAGES
1436 select WEAK_ORDERING
1438 config CPU_CAVIUM_OCTEON
1439 bool "Cavium Octeon processor"
1440 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1441 select CPU_HAS_PREFETCH
1442 select CPU_SUPPORTS_64BIT_KERNEL
1443 select WEAK_ORDERING
1444 select CPU_SUPPORTS_HIGHMEM
1445 select CPU_SUPPORTS_HUGEPAGES
1446 select USB_EHCI_BIG_ENDIAN_MMIO
1447 select MIPS_L1_CACHE_SHIFT_7
1449 The Cavium Octeon processor is a highly integrated chip containing
1450 many ethernet hardware widgets for networking tasks. The processor
1451 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1452 Full details can be found at http://www.caviumnetworks.com.
1455 bool "Broadcom BMIPS"
1456 depends on SYS_HAS_CPU_BMIPS
1458 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1459 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1460 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1461 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1462 select CPU_SUPPORTS_32BIT_KERNEL
1463 select DMA_NONCOHERENT
1465 select SWAP_IO_SPACE
1466 select WEAK_ORDERING
1467 select CPU_SUPPORTS_HIGHMEM
1468 select CPU_HAS_PREFETCH
1470 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1473 bool "Netlogic XLR SoC"
1474 depends on SYS_HAS_CPU_XLR
1475 select CPU_SUPPORTS_32BIT_KERNEL
1476 select CPU_SUPPORTS_64BIT_KERNEL
1477 select CPU_SUPPORTS_HIGHMEM
1478 select CPU_SUPPORTS_HUGEPAGES
1479 select WEAK_ORDERING
1480 select WEAK_REORDERING_BEYOND_LLSC
1482 Netlogic Microsystems XLR/XLS processors.
1485 bool "Netlogic XLP SoC"
1486 depends on SYS_HAS_CPU_XLP
1487 select CPU_SUPPORTS_32BIT_KERNEL
1488 select CPU_SUPPORTS_64BIT_KERNEL
1489 select CPU_SUPPORTS_HIGHMEM
1490 select WEAK_ORDERING
1491 select WEAK_REORDERING_BEYOND_LLSC
1492 select CPU_HAS_PREFETCH
1495 Netlogic Microsystems XLP processors.
1498 config CPU_MIPS32_3_5_FEATURES
1499 bool "MIPS32 Release 3.5 Features"
1500 depends on SYS_HAS_CPU_MIPS32_R3_5
1501 depends on CPU_MIPS32_R2
1503 Choose this option to build a kernel for release 2 or later of the
1504 MIPS32 architecture including features from the 3.5 release such as
1505 support for Enhanced Virtual Addressing (EVA).
1507 config CPU_MIPS32_3_5_EVA
1508 bool "Enhanced Virtual Addressing (EVA)"
1509 depends on CPU_MIPS32_3_5_FEATURES
1513 Choose this option if you want to enable the Enhanced Virtual
1514 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1515 One of its primary benefits is an increase in the maximum size
1516 of lowmem (up to 3GB). If unsure, say 'N' here.
1519 config CPU_NOP_WORKAROUNDS
1522 config CPU_JUMP_WORKAROUNDS
1525 config CPU_LOONGSON2F_WORKAROUNDS
1526 bool "Loongson 2F Workarounds"
1528 select CPU_NOP_WORKAROUNDS
1529 select CPU_JUMP_WORKAROUNDS
1531 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1532 require workarounds. Without workarounds the system may hang
1533 unexpectedly. For more information please refer to the gas
1534 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1536 Loongson 2F03 and later have fixed these issues and no workarounds
1537 are needed. The workarounds have no significant side effect on them
1538 but may decrease the performance of the system so this option should
1539 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1542 If unsure, please say Y.
1543 endif # CPU_LOONGSON2F
1545 config SYS_SUPPORTS_ZBOOT
1547 select HAVE_KERNEL_GZIP
1548 select HAVE_KERNEL_BZIP2
1549 select HAVE_KERNEL_LZ4
1550 select HAVE_KERNEL_LZMA
1551 select HAVE_KERNEL_LZO
1552 select HAVE_KERNEL_XZ
1554 config SYS_SUPPORTS_ZBOOT_UART16550
1556 select SYS_SUPPORTS_ZBOOT
1558 config CPU_LOONGSON2
1560 select CPU_SUPPORTS_32BIT_KERNEL
1561 select CPU_SUPPORTS_64BIT_KERNEL
1562 select CPU_SUPPORTS_HIGHMEM
1563 select CPU_SUPPORTS_HUGEPAGES
1565 config CPU_LOONGSON1
1569 select CPU_HAS_PREFETCH
1570 select CPU_SUPPORTS_32BIT_KERNEL
1571 select CPU_SUPPORTS_HIGHMEM
1573 config CPU_BMIPS32_3300
1574 select SMP_UP if SMP
1577 config CPU_BMIPS4350
1579 select SYS_SUPPORTS_SMP
1580 select SYS_SUPPORTS_HOTPLUG_CPU
1582 config CPU_BMIPS4380
1584 select SYS_SUPPORTS_SMP
1585 select SYS_SUPPORTS_HOTPLUG_CPU
1587 config CPU_BMIPS5000
1589 select MIPS_CPU_SCACHE
1590 select SYS_SUPPORTS_SMP
1591 select SYS_SUPPORTS_HOTPLUG_CPU
1593 config SYS_HAS_CPU_LOONGSON3
1595 select CPU_SUPPORTS_CPUFREQ
1597 config SYS_HAS_CPU_LOONGSON2E
1600 config SYS_HAS_CPU_LOONGSON2F
1602 select CPU_SUPPORTS_CPUFREQ
1603 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1604 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1606 config SYS_HAS_CPU_LOONGSON1B
1609 config SYS_HAS_CPU_MIPS32_R1
1612 config SYS_HAS_CPU_MIPS32_R2
1615 config SYS_HAS_CPU_MIPS32_R3_5
1618 config SYS_HAS_CPU_MIPS64_R1
1621 config SYS_HAS_CPU_MIPS64_R2
1624 config SYS_HAS_CPU_R3000
1627 config SYS_HAS_CPU_TX39XX
1630 config SYS_HAS_CPU_VR41XX
1633 config SYS_HAS_CPU_R4300
1636 config SYS_HAS_CPU_R4X00
1639 config SYS_HAS_CPU_TX49XX
1642 config SYS_HAS_CPU_R5000
1645 config SYS_HAS_CPU_R5432
1648 config SYS_HAS_CPU_R5500
1651 config SYS_HAS_CPU_R6000
1654 config SYS_HAS_CPU_NEVADA
1657 config SYS_HAS_CPU_R8000
1660 config SYS_HAS_CPU_R10000
1663 config SYS_HAS_CPU_RM7000
1666 config SYS_HAS_CPU_SB1
1669 config SYS_HAS_CPU_CAVIUM_OCTEON
1672 config SYS_HAS_CPU_BMIPS
1675 config SYS_HAS_CPU_BMIPS32_3300
1677 select SYS_HAS_CPU_BMIPS
1679 config SYS_HAS_CPU_BMIPS4350
1681 select SYS_HAS_CPU_BMIPS
1683 config SYS_HAS_CPU_BMIPS4380
1685 select SYS_HAS_CPU_BMIPS
1687 config SYS_HAS_CPU_BMIPS5000
1689 select SYS_HAS_CPU_BMIPS
1691 config SYS_HAS_CPU_XLR
1694 config SYS_HAS_CPU_XLP
1697 config MIPS_MALTA_PM
1698 depends on MIPS_MALTA
1704 # CPU may reorder R->R, R->W, W->R, W->W
1705 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1707 config WEAK_ORDERING
1711 # CPU may reorder reads and writes beyond LL/SC
1712 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1714 config WEAK_REORDERING_BEYOND_LLSC
1719 # These two indicate any level of the MIPS32 and MIPS64 architecture
1723 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1727 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1730 # These two indicate the revision of the architecture, either Release 1 or Release 2
1734 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1738 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1743 config SYS_SUPPORTS_32BIT_KERNEL
1745 config SYS_SUPPORTS_64BIT_KERNEL
1747 config CPU_SUPPORTS_32BIT_KERNEL
1749 config CPU_SUPPORTS_64BIT_KERNEL
1751 config CPU_SUPPORTS_CPUFREQ
1753 config CPU_SUPPORTS_ADDRWINCFG
1755 config CPU_SUPPORTS_HUGEPAGES
1757 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1759 config MIPS_PGD_C0_CONTEXT
1761 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1764 # Set to y for ptrace access to watch registers.
1766 config HARDWARE_WATCHPOINTS
1768 default y if CPU_MIPSR1 || CPU_MIPSR2
1773 prompt "Kernel code model"
1775 You should only select this option if you have a workload that
1776 actually benefits from 64-bit processing or if your machine has
1777 large memory. You will only be presented a single option in this
1778 menu if your system does not support both 32-bit and 64-bit kernels.
1781 bool "32-bit kernel"
1782 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1785 Select this option if you want to build a 32-bit kernel.
1787 bool "64-bit kernel"
1788 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1790 Select this option if you want to build a 64-bit kernel.
1795 bool "KVM Guest Kernel"
1796 depends on BROKEN_ON_SMP
1798 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1800 config KVM_GUEST_TIMER_FREQ
1801 int "Count/Compare Timer Frequency (MHz)"
1802 depends on KVM_GUEST
1805 Set this to non-zero if building a guest kernel for KVM to skip RTC
1806 emulation when determining guest CPU Frequency. Instead, the guest's
1807 timer frequency is specified directly.
1810 prompt "Kernel page size"
1811 default PAGE_SIZE_4KB
1813 config PAGE_SIZE_4KB
1815 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1817 This option select the standard 4kB Linux page size. On some
1818 R3000-family processors this is the only available page size. Using
1819 4kB page size will minimize memory consumption and is therefore
1820 recommended for low memory systems.
1822 config PAGE_SIZE_8KB
1824 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1826 Using 8kB page size will result in higher performance kernel at
1827 the price of higher memory consumption. This option is available
1828 only on R8000 and cnMIPS processors. Note that you will need a
1829 suitable Linux distribution to support this.
1831 config PAGE_SIZE_16KB
1833 depends on !CPU_R3000 && !CPU_TX39XX
1835 Using 16kB page size will result in higher performance kernel at
1836 the price of higher memory consumption. This option is available on
1837 all non-R3000 family processors. Note that you will need a suitable
1838 Linux distribution to support this.
1840 config PAGE_SIZE_32KB
1842 depends on CPU_CAVIUM_OCTEON
1844 Using 32kB page size will result in higher performance kernel at
1845 the price of higher memory consumption. This option is available
1846 only on cnMIPS cores. Note that you will need a suitable Linux
1847 distribution to support this.
1849 config PAGE_SIZE_64KB
1851 depends on !CPU_R3000 && !CPU_TX39XX
1853 Using 64kB page size will result in higher performance kernel at
1854 the price of higher memory consumption. This option is available on
1855 all non-R3000 family processor. Not that at the time of this
1856 writing this option is still high experimental.
1860 config FORCE_MAX_ZONEORDER
1861 int "Maximum zone order"
1862 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1863 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1864 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1865 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1866 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1867 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1871 The kernel memory allocator divides physically contiguous memory
1872 blocks into "zones", where each zone is a power of two number of
1873 pages. This option selects the largest power of two that the kernel
1874 keeps in the memory allocator. If you need to allocate very large
1875 blocks of physically contiguous memory, then you may need to
1876 increase this value.
1878 This config option is actually maximum order plus one. For example,
1879 a value of 11 means that the largest free memory block is 2^10 pages.
1881 The page size is not necessarily 4KB. Keep this in mind
1882 when choosing a value for this option.
1885 bool "Use GIC global counter for clock events"
1886 depends on IRQ_GIC && !MIPS_SEAD3
1888 Use the GIC global counter for the clock events. The R4K clock
1889 event driver is always present, so if the platform ends up not
1890 detecting a GIC, it will fall back to the R4K timer for the
1891 generation of clock events.
1896 config IP22_CPU_SCACHE
1901 # Support for a MIPS32 / MIPS64 style S-caches
1903 config MIPS_CPU_SCACHE
1906 select MIPS_L1_CACHE_SHIFT_6
1908 config R5000_CPU_SCACHE
1912 config RM7000_CPU_SCACHE
1916 config SIBYTE_DMA_PAGEOPS
1917 bool "Use DMA to clear/copy pages"
1920 Instead of using the CPU to zero and copy pages, use a Data Mover
1921 channel. These DMA channels are otherwise unused by the standard
1922 SiByte Linux port. Seems to give a small performance benefit.
1924 config CPU_HAS_PREFETCH
1927 config CPU_GENERIC_DUMP_TLB
1929 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1933 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1935 config CPU_R4K_CACHE_TLB
1937 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1940 bool "MIPS MT SMP support (1 TC on each available VPE)"
1941 depends on SYS_SUPPORTS_MULTITHREADING
1942 select CPU_MIPSR2_IRQ_VI
1943 select CPU_MIPSR2_IRQ_EI
1949 select SYS_SUPPORTS_SMP
1950 select SYS_SUPPORTS_SCHED_SMT
1951 select MIPS_PERF_SHARED_TC_COUNTERS
1953 This is a kernel model which is known as SMVP. This is supported
1954 on cores with the MT ASE and uses the available VPEs to implement
1955 virtual processors which supports SMP. This is equivalent to the
1956 Intel Hyperthreading feature. For further information go to
1957 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1963 bool "SMT (multithreading) scheduler support"
1964 depends on SYS_SUPPORTS_SCHED_SMT
1967 SMT scheduler support improves the CPU scheduler's decision making
1968 when dealing with MIPS MT enabled cores at a cost of slightly
1969 increased overhead in some places. If unsure say N here.
1971 config SYS_SUPPORTS_SCHED_SMT
1974 config SYS_SUPPORTS_MULTITHREADING
1977 config MIPS_MT_FPAFF
1978 bool "Dynamic FPU affinity for FP-intensive threads"
1980 depends on MIPS_MT_SMP
1982 config MIPS_VPE_LOADER
1983 bool "VPE loader support."
1984 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1985 select CPU_MIPSR2_IRQ_VI
1986 select CPU_MIPSR2_IRQ_EI
1989 Includes a loader for loading an elf relocatable object
1990 onto another VPE and running it.
1992 config MIPS_VPE_LOADER_CMP
1995 depends on MIPS_VPE_LOADER && MIPS_CMP
1997 config MIPS_VPE_LOADER_MT
2000 depends on MIPS_VPE_LOADER && !MIPS_CMP
2002 config MIPS_VPE_LOADER_TOM
2003 bool "Load VPE program into memory hidden from linux"
2004 depends on MIPS_VPE_LOADER
2007 The loader can use memory that is present but has been hidden from
2008 Linux using the kernel command line option "mem=xxMB". It's up to
2009 you to ensure the amount you put in the option and the space your
2010 program requires is less or equal to the amount physically present.
2012 config MIPS_VPE_APSP_API
2013 bool "Enable support for AP/SP API (RTLX)"
2014 depends on MIPS_VPE_LOADER
2017 config MIPS_VPE_APSP_API_CMP
2020 depends on MIPS_VPE_APSP_API && MIPS_CMP
2022 config MIPS_VPE_APSP_API_MT
2025 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2028 bool "MIPS CMP framework support (DEPRECATED)"
2029 depends on SYS_SUPPORTS_MIPS_CMP
2032 select WEAK_ORDERING
2035 Select this if you are using a bootloader which implements the "CMP
2036 framework" protocol (ie. YAMON) and want your kernel to make use of
2037 its ability to start secondary CPUs.
2039 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2043 bool "MIPS Coherent Processing System support"
2044 depends on SYS_SUPPORTS_MIPS_CPS
2047 select MIPS_CPS_PM if HOTPLUG_CPU
2050 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2051 select SYS_SUPPORTS_HOTPLUG_CPU
2052 select SYS_SUPPORTS_SMP
2053 select WEAK_ORDERING
2055 Select this if you wish to run an SMP kernel across multiple cores
2056 within a MIPS Coherent Processing System. When this option is
2057 enabled the kernel will probe for other cores and boot them with
2058 no external assistance. It is safe to enable this when hardware
2059 support is unavailable.
2073 config SB1_PASS_1_WORKAROUNDS
2075 depends on CPU_SB1_PASS_1
2078 config SB1_PASS_2_WORKAROUNDS
2080 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2083 config SB1_PASS_2_1_WORKAROUNDS
2085 depends on CPU_SB1 && CPU_SB1_PASS_2
2089 config 64BIT_PHYS_ADDR
2092 config ARCH_PHYS_ADDR_T_64BIT
2093 def_bool 64BIT_PHYS_ADDR
2095 config CPU_HAS_SMARTMIPS
2096 depends on SYS_SUPPORTS_SMARTMIPS
2097 bool "Support for the SmartMIPS ASE"
2099 SmartMIPS is a extension of the MIPS32 architecture aimed at
2100 increased security at both hardware and software level for
2101 smartcards. Enabling this option will allow proper use of the
2102 SmartMIPS instructions by Linux applications. However a kernel with
2103 this option will not work on a MIPS core without SmartMIPS core. If
2104 you don't know you probably don't have SmartMIPS and should say N
2107 config CPU_MICROMIPS
2108 depends on SYS_SUPPORTS_MICROMIPS
2109 bool "Build kernel using microMIPS ISA"
2111 When this option is enabled the kernel will be built using the
2115 bool "Support for the MIPS SIMD Architecture"
2116 depends on CPU_SUPPORTS_MSA
2119 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2120 and a set of SIMD instructions to operate on them. When this option
2121 is enabled the kernel will support allocating & switching MSA
2122 vector register contexts. If you know that your kernel will only be
2123 running on CPUs which do not support MSA or that your userland will
2124 not be making use of it then you may wish to say N here to reduce
2125 the size & complexity of your kernel.
2136 # Vectored interrupt mode is an R2 feature
2138 config CPU_MIPSR2_IRQ_VI
2142 # Extended interrupt mode is an R2 feature
2144 config CPU_MIPSR2_IRQ_EI
2149 depends on !CPU_R3000
2155 config CPU_DADDI_WORKAROUNDS
2158 config CPU_R4000_WORKAROUNDS
2160 select CPU_R4400_WORKAROUNDS
2162 config CPU_R4400_WORKAROUNDS
2166 # - Highmem only makes sense for the 32-bit kernel.
2167 # - The current highmem code will only work properly on physically indexed
2168 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2169 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2170 # moment we protect the user and offer the highmem option only on machines
2171 # where it's known to be safe. This will not offer highmem on a few systems
2172 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2173 # indexed CPUs but we're playing safe.
2174 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2175 # know they might have memory configurations that could make use of highmem
2179 bool "High Memory Support"
2180 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2182 config CPU_SUPPORTS_HIGHMEM
2185 config SYS_SUPPORTS_HIGHMEM
2188 config SYS_SUPPORTS_SMARTMIPS
2191 config SYS_SUPPORTS_MICROMIPS
2194 config SYS_SUPPORTS_MIPS16
2197 This option must be set if a kernel might be executed on a MIPS16-
2198 enabled CPU even if MIPS16 is not actually being used. In other
2199 words, it makes the kernel MIPS16-tolerant.
2201 config CPU_SUPPORTS_MSA
2204 config ARCH_FLATMEM_ENABLE
2206 depends on !NUMA && !CPU_LOONGSON2
2208 config ARCH_DISCONTIGMEM_ENABLE
2210 default y if SGI_IP27
2212 Say Y to support efficient handling of discontiguous physical memory,
2213 for architectures which are either NUMA (Non-Uniform Memory Access)
2214 or have huge holes in the physical address space for other reasons.
2215 See <file:Documentation/vm/numa> for more.
2217 config ARCH_SPARSEMEM_ENABLE
2219 select SPARSEMEM_STATIC
2223 depends on SYS_SUPPORTS_NUMA
2225 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2226 Access). This option improves performance on systems with more
2227 than two nodes; on two node systems it is generally better to
2228 leave it disabled; on single node systems disable this option
2231 config SYS_SUPPORTS_NUMA
2237 depends on NEED_MULTIPLE_NODES
2239 config HW_PERF_EVENTS
2240 bool "Enable hardware performance counter support for perf events"
2241 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2244 Enable hardware performance counter support for perf events. If
2245 disabled, perf events will use software events only.
2250 bool "Multi-Processing support"
2251 depends on SYS_SUPPORTS_SMP
2253 This enables support for systems with more than one CPU. If you have
2254 a system with only one CPU, say N. If you have a system with more
2255 than one CPU, say Y.
2257 If you say N here, the kernel will run on uni- and multiprocessor
2258 machines, but will use only one CPU of a multiprocessor machine. If
2259 you say Y here, the kernel will run on many, but not all,
2260 uniprocessor machines. On a uniprocessor machine, the kernel
2261 will run faster if you say N here.
2263 People using multiprocessor machines who say Y here should also say
2264 Y to "Enhanced Real Time Clock Support", below.
2266 See also the SMP-HOWTO available at
2267 <http://www.tldp.org/docs.html#howto>.
2269 If you don't know what to do here, say N.
2274 config SYS_SUPPORTS_MIPS_CMP
2277 config SYS_SUPPORTS_MIPS_CPS
2280 config SYS_SUPPORTS_SMP
2283 config NR_CPUS_DEFAULT_4
2286 config NR_CPUS_DEFAULT_8
2289 config NR_CPUS_DEFAULT_16
2292 config NR_CPUS_DEFAULT_32
2295 config NR_CPUS_DEFAULT_64
2299 int "Maximum number of CPUs (2-256)"
2302 default "4" if NR_CPUS_DEFAULT_4
2303 default "8" if NR_CPUS_DEFAULT_8
2304 default "16" if NR_CPUS_DEFAULT_16
2305 default "32" if NR_CPUS_DEFAULT_32
2306 default "64" if NR_CPUS_DEFAULT_64
2308 This allows you to specify the maximum number of CPUs which this
2309 kernel will support. The maximum supported value is 32 for 32-bit
2310 kernel and 64 for 64-bit kernels; the minimum value which makes
2311 sense is 1 for Qemu (useful only for kernel debugging purposes)
2312 and 2 for all others.
2314 This is purely to save memory - each supported CPU adds
2315 approximately eight kilobytes to the kernel image. For best
2316 performance should round up your number of processors to the next
2319 config MIPS_PERF_SHARED_TC_COUNTERS
2323 # Timer Interrupt Frequency Configuration
2327 prompt "Timer frequency"
2330 Allows the configuration of the timer frequency.
2333 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2336 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2339 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2342 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2345 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2348 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2351 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2355 config SYS_SUPPORTS_48HZ
2358 config SYS_SUPPORTS_100HZ
2361 config SYS_SUPPORTS_128HZ
2364 config SYS_SUPPORTS_250HZ
2367 config SYS_SUPPORTS_256HZ
2370 config SYS_SUPPORTS_1000HZ
2373 config SYS_SUPPORTS_1024HZ
2376 config SYS_SUPPORTS_ARBIT_HZ
2378 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2379 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2380 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2381 !SYS_SUPPORTS_1024HZ
2386 default 100 if HZ_100
2387 default 128 if HZ_128
2388 default 250 if HZ_250
2389 default 256 if HZ_256
2390 default 1000 if HZ_1000
2391 default 1024 if HZ_1024
2393 source "kernel/Kconfig.preempt"
2396 bool "Kexec system call"
2398 kexec is a system call that implements the ability to shutdown your
2399 current kernel, and to start another kernel. It is like a reboot
2400 but it is independent of the system firmware. And like a reboot
2401 you can start any kernel with it, not just Linux.
2403 The name comes from the similarity to the exec system call.
2405 It is an ongoing process to be certain the hardware in a machine
2406 is properly shutdown, so do not be surprised if this code does not
2407 initially work for you. As of this writing the exact hardware
2408 interface is strongly in flux, so no good recommendation can be
2412 bool "Kernel crash dumps"
2414 Generate crash dump after being started by kexec.
2415 This should be normally only set in special crash dump kernels
2416 which are loaded in the main kernel with kexec-tools into
2417 a specially reserved region and then later executed after
2418 a crash by kdump/kexec. The crash dump kernel must be compiled
2419 to a memory address not used by the main kernel or firmware using
2422 config PHYSICAL_START
2423 hex "Physical address where the kernel is loaded"
2424 default "0xffffffff84000000" if 64BIT
2425 default "0x84000000" if 32BIT
2426 depends on CRASH_DUMP
2428 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2429 If you plan to use kernel for capturing the crash dump change
2430 this value to start of the reserved region (the "X" value as
2431 specified in the "crashkernel=YM@XM" command line boot parameter
2432 passed to the panic-ed kernel).
2435 bool "Enable seccomp to safely compute untrusted bytecode"
2439 This kernel feature is useful for number crunching applications
2440 that may need to compute untrusted bytecode during their
2441 execution. By using pipes or other transports made available to
2442 the process as file descriptors supporting the read/write
2443 syscalls, it's possible to isolate those applications in
2444 their own address space using seccomp. Once seccomp is
2445 enabled via /proc/<pid>/seccomp, it cannot be disabled
2446 and the task is only allowed to execute a few safe syscalls
2447 defined by each seccomp mode.
2449 If unsure, say Y. Only embedded should say N here.
2451 config MIPS_O32_FP64_SUPPORT
2452 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2453 depends on 32BIT || MIPS32_O32
2455 When this is enabled, the kernel will support use of 64-bit floating
2456 point registers with binaries using the O32 ABI along with the
2457 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2458 32-bit MIPS systems this support is at the cost of increasing the
2459 size and complexity of the compiled FPU emulator. Thus if you are
2460 running a MIPS32 system and know that none of your userland binaries
2461 will require 64-bit floating point, you may wish to reduce the size
2462 of your kernel & potentially improve FP emulation performance by
2465 Although binutils currently supports use of this flag the details
2466 concerning its effect upon the O32 ABI in userland are still being
2467 worked on. In order to avoid userland becoming dependant upon current
2468 behaviour before the details have been finalised, this option should
2469 be considered experimental and only enabled by those working upon
2477 select OF_EARLY_FLATTREE
2482 config LOCKDEP_SUPPORT
2486 config STACKTRACE_SUPPORT
2490 source "init/Kconfig"
2492 source "kernel/Kconfig.freezer"
2494 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2502 bool "Support for PCI controller"
2503 depends on HW_HAS_PCI
2505 select NO_GENERIC_PCI_IOPORT_MAP
2507 Find out whether you have a PCI motherboard. PCI is the name of a
2508 bus system, i.e. the way the CPU talks to the other stuff inside
2509 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2513 bool "Support for HT-linked PCI"
2515 depends on CPU_LOONGSON3
2519 Loongson family machines use Hyper-Transport bus for inter-core
2520 connection and device connection. The PCI bus is a subordinate
2521 linked at HT. Choose Y for Loongson-3 based machines.
2526 source "drivers/pci/Kconfig"
2528 source "drivers/pci/pcie/Kconfig"
2531 # ISA support is now enabled via select. Too many systems still have the one
2532 # or other ISA chip on the board that users don't know about so don't expect
2533 # users to choose the right thing ...
2540 depends on HW_HAS_EISA
2542 select GENERIC_ISA_DMA
2544 The Extended Industry Standard Architecture (EISA) bus was
2545 developed as an open alternative to the IBM MicroChannel bus.
2547 The EISA bus provided some of the features of the IBM MicroChannel
2548 bus while maintaining backward compatibility with cards made for
2549 the older ISA bus. The EISA bus saw limited use between 1988 and
2550 1995 when it was made obsolete by the PCI bus.
2552 Say Y here if you are building a kernel for an EISA-based machine.
2556 source "drivers/eisa/Kconfig"
2559 bool "TURBOchannel support"
2560 depends on MACH_DECSTATION
2562 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2563 processors. TURBOchannel programming specifications are available
2565 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2567 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2568 Linux driver support status is documented at:
2569 <http://www.linux-mips.org/wiki/DECstation>
2579 select MIPS_EXTERNAL_TIMER
2587 source "drivers/pcmcia/Kconfig"
2589 source "drivers/pci/hotplug/Kconfig"
2592 tristate "RapidIO support"
2596 If you say Y here, the kernel will include drivers and
2597 infrastructure code to support RapidIO interconnect devices.
2599 source "drivers/rapidio/Kconfig"
2603 menu "Executable file formats"
2605 source "fs/Kconfig.binfmt"
2610 config MIPS32_COMPAT
2611 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2614 Select this option if you want Linux/MIPS 32-bit binary
2615 compatibility. Since all software available for Linux/MIPS is
2616 currently 32-bit you should say Y here.
2620 depends on MIPS32_COMPAT
2621 select ARCH_WANT_OLD_COMPAT_IPC
2624 config SYSVIPC_COMPAT
2626 depends on COMPAT && SYSVIPC
2630 bool "Kernel support for o32 binaries"
2631 depends on MIPS32_COMPAT
2633 Select this option if you want to run o32 binaries. These are pure
2634 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2635 existing binaries are in this format.
2640 bool "Kernel support for n32 binaries"
2641 depends on MIPS32_COMPAT
2643 Select this option if you want to run n32 binaries. These are
2644 64-bit binaries using 32-bit quantities for addressing and certain
2645 data that would normally be 64-bit. They are used in special
2652 default y if MIPS32_O32 || MIPS32_N32
2656 menu "Power management options"
2658 config ARCH_HIBERNATION_POSSIBLE
2660 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2662 config ARCH_SUSPEND_POSSIBLE
2664 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2666 source "kernel/power/Kconfig"
2670 config MIPS_EXTERNAL_TIMER
2673 menu "CPU Power Management"
2675 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2676 source "drivers/cpufreq/Kconfig"
2679 source "drivers/cpuidle/Kconfig"
2683 source "net/Kconfig"
2685 source "drivers/Kconfig"
2687 source "drivers/firmware/Kconfig"
2691 source "arch/mips/Kconfig.debug"
2693 source "security/Kconfig"
2695 source "crypto/Kconfig"
2697 source "lib/Kconfig"
2699 source "arch/mips/kvm/Kconfig"