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 select LEDS_GPIO_REGISTER
137 Support for BCM47XX based boards
140 bool "Broadcom BCM63XX based boards"
145 select DMA_NONCOHERENT
147 select SYS_SUPPORTS_32BIT_KERNEL
148 select SYS_SUPPORTS_BIG_ENDIAN
149 select SYS_HAS_EARLY_PRINTK
151 select ARCH_REQUIRE_GPIOLIB
153 select MIPS_L1_CACHE_SHIFT_4
155 Support for BCM63XX based boards
162 select DMA_NONCOHERENT
168 select PCI_GT64XXX_PCI0
170 select SYS_HAS_CPU_NEVADA
171 select SYS_HAS_EARLY_PRINTK
172 select SYS_SUPPORTS_32BIT_KERNEL
173 select SYS_SUPPORTS_64BIT_KERNEL
174 select SYS_SUPPORTS_LITTLE_ENDIAN
175 select USE_GENERIC_EARLY_PRINTK_8250
177 config MACH_DECSTATION
181 select CEVT_R4K if CPU_R4X00
183 select CSRC_R4K if CPU_R4X00
184 select CPU_DADDI_WORKAROUNDS if 64BIT
185 select CPU_R4000_WORKAROUNDS if 64BIT
186 select CPU_R4400_WORKAROUNDS if 64BIT
187 select DMA_NONCOHERENT
190 select SYS_HAS_CPU_R3000
191 select SYS_HAS_CPU_R4X00
192 select SYS_SUPPORTS_32BIT_KERNEL
193 select SYS_SUPPORTS_64BIT_KERNEL
194 select SYS_SUPPORTS_LITTLE_ENDIAN
195 select SYS_SUPPORTS_128HZ
196 select SYS_SUPPORTS_256HZ
197 select SYS_SUPPORTS_1024HZ
198 select MIPS_L1_CACHE_SHIFT_4
200 This enables support for DEC's MIPS based workstations. For details
201 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
202 DECstation porting pages on <http://decstation.unix-ag.org/>.
204 If you have one of the following DECstation Models you definitely
205 want to choose R4xx0 for the CPU Type:
212 otherwise choose R3000.
215 bool "Jazz family of machines"
218 select ARCH_MAY_HAVE_PC_FDC
221 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
222 select GENERIC_ISA_DMA
223 select HAVE_PCSPKR_PLATFORM
228 select SYS_HAS_CPU_R4X00
229 select SYS_SUPPORTS_32BIT_KERNEL
230 select SYS_SUPPORTS_64BIT_KERNEL
231 select SYS_SUPPORTS_100HZ
233 This a family of machines based on the MIPS R4030 chipset which was
234 used by several vendors to build RISC/os and Windows NT workstations.
235 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
236 Olivetti M700-10 workstations.
239 bool "Ingenic JZ4740 based machines"
240 select SYS_HAS_CPU_MIPS32_R1
241 select SYS_SUPPORTS_32BIT_KERNEL
242 select SYS_SUPPORTS_LITTLE_ENDIAN
243 select SYS_SUPPORTS_ZBOOT_UART16550
244 select DMA_NONCOHERENT
246 select ARCH_REQUIRE_GPIOLIB
247 select SYS_HAS_EARLY_PRINTK
249 select GENERIC_IRQ_CHIP
252 bool "Lantiq based platforms"
253 select DMA_NONCOHERENT
257 select SYS_HAS_CPU_MIPS32_R1
258 select SYS_HAS_CPU_MIPS32_R2
259 select SYS_SUPPORTS_BIG_ENDIAN
260 select SYS_SUPPORTS_32BIT_KERNEL
261 select SYS_SUPPORTS_MIPS16
262 select SYS_SUPPORTS_MULTITHREADING
263 select SYS_HAS_EARLY_PRINTK
264 select ARCH_REQUIRE_GPIOLIB
267 select HAVE_MACH_CLKDEV
271 select PINCTRL_LANTIQ
274 bool "LASAT Networks platforms"
278 select DMA_NONCOHERENT
279 select SYS_HAS_EARLY_PRINTK
282 select PCI_GT64XXX_PCI0
284 select R5000_CPU_SCACHE
285 select SYS_HAS_CPU_R5000
286 select SYS_SUPPORTS_32BIT_KERNEL
287 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
288 select SYS_SUPPORTS_LITTLE_ENDIAN
291 bool "Loongson family of machines"
292 select SYS_SUPPORTS_ZBOOT
294 This enables the support of Loongson family of machines.
296 Loongson is a family of general-purpose MIPS-compatible CPUs.
297 developed at Institute of Computing Technology (ICT),
298 Chinese Academy of Sciences (CAS) in the People's Republic
299 of China. The chief architect is Professor Weiwu Hu.
301 config MACH_LOONGSON1
302 bool "Loongson 1 family of machines"
303 select SYS_SUPPORTS_ZBOOT
305 This enables support for the Loongson 1 based machines.
307 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
308 the ICT (Institute of Computing Technology) and the Chinese Academy
312 bool "MIPS Malta board"
313 select ARCH_MAY_HAVE_PC_FDC
319 select DMA_MAYBE_COHERENT
320 select GENERIC_ISA_DMA
321 select HAVE_PCSPKR_PLATFORM
328 select MIPS_CPU_SCACHE
329 select PCI_GT64XXX_PCI0
332 select SYS_HAS_CPU_MIPS32_R1
333 select SYS_HAS_CPU_MIPS32_R2
334 select SYS_HAS_CPU_MIPS32_R3_5
335 select SYS_HAS_CPU_MIPS64_R1
336 select SYS_HAS_CPU_MIPS64_R2
337 select SYS_HAS_CPU_NEVADA
338 select SYS_HAS_CPU_RM7000
339 select SYS_SUPPORTS_32BIT_KERNEL
340 select SYS_SUPPORTS_64BIT_KERNEL
341 select SYS_SUPPORTS_BIG_ENDIAN
342 select SYS_SUPPORTS_LITTLE_ENDIAN
343 select SYS_SUPPORTS_MIPS_CMP
344 select SYS_SUPPORTS_MIPS_CPS
345 select SYS_SUPPORTS_MIPS16
346 select SYS_SUPPORTS_MULTITHREADING
347 select SYS_SUPPORTS_SMARTMIPS
348 select SYS_SUPPORTS_ZBOOT
350 This enables support for the MIPS Technologies Malta evaluation
354 bool "MIPS SEAD3 board"
360 select CPU_MIPSR2_IRQ_VI
361 select CPU_MIPSR2_IRQ_EI
362 select DMA_NONCOHERENT
367 select SYS_HAS_CPU_MIPS32_R1
368 select SYS_HAS_CPU_MIPS32_R2
369 select SYS_HAS_CPU_MIPS64_R1
370 select SYS_HAS_EARLY_PRINTK
371 select SYS_SUPPORTS_32BIT_KERNEL
372 select SYS_SUPPORTS_64BIT_KERNEL
373 select SYS_SUPPORTS_BIG_ENDIAN
374 select SYS_SUPPORTS_LITTLE_ENDIAN
375 select SYS_SUPPORTS_SMARTMIPS
376 select SYS_SUPPORTS_MICROMIPS
377 select SYS_SUPPORTS_MIPS16
378 select USB_EHCI_BIG_ENDIAN_DESC
379 select USB_EHCI_BIG_ENDIAN_MMIO
382 This enables support for the MIPS Technologies SEAD3 evaluation
386 bool "NEC EMMA2RH Mark-eins board"
390 This enables support for the NEC Electronics Mark-eins boards.
393 bool "NEC VR4100 series based machines"
396 select SYS_HAS_CPU_VR41XX
397 select SYS_SUPPORTS_MIPS16
398 select ARCH_REQUIRE_GPIOLIB
401 bool "NXP STB220 board"
404 Support for NXP Semiconductors STB220 Development Board.
411 Support for NXP Semiconductors STB225 Development Board.
414 bool "PMC-Sierra MSP chipsets"
417 select DMA_NONCOHERENT
419 select NO_EXCEPT_FILL
421 select SYS_HAS_CPU_MIPS32_R1
422 select SYS_HAS_CPU_MIPS32_R2
423 select SYS_SUPPORTS_32BIT_KERNEL
424 select SYS_SUPPORTS_BIG_ENDIAN
425 select SYS_SUPPORTS_MIPS16
428 select SERIAL_8250_CONSOLE
429 select USB_EHCI_BIG_ENDIAN_MMIO
430 select USB_EHCI_BIG_ENDIAN_DESC
432 This adds support for the PMC-Sierra family of Multi-Service
433 Processor System-On-A-Chips. These parts include a number
434 of integrated peripherals, interfaces and DSPs in addition to
435 a variety of MIPS cores.
438 bool "Ralink based machines"
442 select DMA_NONCOHERENT
445 select SYS_HAS_CPU_MIPS32_R1
446 select SYS_HAS_CPU_MIPS32_R2
447 select SYS_SUPPORTS_32BIT_KERNEL
448 select SYS_SUPPORTS_LITTLE_ENDIAN
449 select SYS_SUPPORTS_MIPS16
450 select SYS_HAS_EARLY_PRINTK
451 select HAVE_MACH_CLKDEV
453 select ARCH_HAS_RESET_CONTROLLER
454 select RESET_CONTROLLER
457 bool "SGI IP22 (Indy/Indigo2)"
463 select DEFAULT_SGI_PARTITION
464 select DMA_NONCOHERENT
468 select IP22_CPU_SCACHE
470 select GENERIC_ISA_DMA_SUPPORT_BROKEN
472 select SGI_HAS_INDYDOG
478 select SYS_HAS_CPU_R4X00
479 select SYS_HAS_CPU_R5000
481 # Disable EARLY_PRINTK for now since it leads to overwritten prom
482 # memory during early boot on some machines.
484 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
485 # for a more details discussion
487 # select SYS_HAS_EARLY_PRINTK
488 select SYS_SUPPORTS_32BIT_KERNEL
489 select SYS_SUPPORTS_64BIT_KERNEL
490 select SYS_SUPPORTS_BIG_ENDIAN
491 select MIPS_L1_CACHE_SHIFT_7
493 This are the SGI Indy, Challenge S and Indigo2, as well as certain
494 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
495 that runs on these, say Y here.
498 bool "SGI IP27 (Origin200/2000)"
502 select DEFAULT_SGI_PARTITION
504 select SYS_HAS_EARLY_PRINTK
506 select NR_CPUS_DEFAULT_64
507 select SYS_HAS_CPU_R10000
508 select SYS_SUPPORTS_64BIT_KERNEL
509 select SYS_SUPPORTS_BIG_ENDIAN
510 select SYS_SUPPORTS_NUMA
511 select SYS_SUPPORTS_SMP
512 select MIPS_L1_CACHE_SHIFT_7
514 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
515 workstations. To compile a Linux kernel that runs on these, say Y
519 bool "SGI IP28 (Indigo2 R10k)"
525 select DEFAULT_SGI_PARTITION
526 select DMA_NONCOHERENT
527 select GENERIC_ISA_DMA_SUPPORT_BROKEN
533 select SGI_HAS_INDYDOG
539 select SYS_HAS_CPU_R10000
541 # Disable EARLY_PRINTK for now since it leads to overwritten prom
542 # memory during early boot on some machines.
544 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
545 # for a more details discussion
547 # select SYS_HAS_EARLY_PRINTK
548 select SYS_SUPPORTS_64BIT_KERNEL
549 select SYS_SUPPORTS_BIG_ENDIAN
551 This is the SGI Indigo2 with R10000 processor. To compile a Linux
552 kernel that runs on these, say Y here.
561 select DMA_NONCOHERENT
564 select R5000_CPU_SCACHE
565 select RM7000_CPU_SCACHE
566 select SYS_HAS_CPU_R5000
567 select SYS_HAS_CPU_R10000 if BROKEN
568 select SYS_HAS_CPU_RM7000
569 select SYS_HAS_CPU_NEVADA
570 select SYS_SUPPORTS_64BIT_KERNEL
571 select SYS_SUPPORTS_BIG_ENDIAN
573 If you want this kernel to run on SGI O2 workstation, say Y here.
576 bool "Sibyte BCM91120C-CRhine"
579 select SIBYTE_BCM1120
581 select SYS_HAS_CPU_SB1
582 select SYS_SUPPORTS_BIG_ENDIAN
583 select SYS_SUPPORTS_LITTLE_ENDIAN
586 bool "Sibyte BCM91120x-Carmel"
589 select SIBYTE_BCM1120
591 select SYS_HAS_CPU_SB1
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_LITTLE_ENDIAN
596 bool "Sibyte BCM91125C-CRhone"
599 select SIBYTE_BCM1125
601 select SYS_HAS_CPU_SB1
602 select SYS_SUPPORTS_BIG_ENDIAN
603 select SYS_SUPPORTS_HIGHMEM
604 select SYS_SUPPORTS_LITTLE_ENDIAN
607 bool "Sibyte BCM91125E-Rhone"
610 select SIBYTE_BCM1125H
612 select SYS_HAS_CPU_SB1
613 select SYS_SUPPORTS_BIG_ENDIAN
614 select SYS_SUPPORTS_LITTLE_ENDIAN
617 bool "Sibyte BCM91250A-SWARM"
620 select HAVE_PATA_PLATFORM
623 select SYS_HAS_CPU_SB1
624 select SYS_SUPPORTS_BIG_ENDIAN
625 select SYS_SUPPORTS_HIGHMEM
626 select SYS_SUPPORTS_LITTLE_ENDIAN
627 select ZONE_DMA32 if 64BIT
629 config SIBYTE_LITTLESUR
630 bool "Sibyte BCM91250C2-LittleSur"
633 select HAVE_PATA_PLATFORM
636 select SYS_HAS_CPU_SB1
637 select SYS_SUPPORTS_BIG_ENDIAN
638 select SYS_SUPPORTS_HIGHMEM
639 select SYS_SUPPORTS_LITTLE_ENDIAN
641 config SIBYTE_SENTOSA
642 bool "Sibyte BCM91250E-Sentosa"
647 select SYS_HAS_CPU_SB1
648 select SYS_SUPPORTS_BIG_ENDIAN
649 select SYS_SUPPORTS_LITTLE_ENDIAN
652 bool "Sibyte BCM91480B-BigSur"
655 select NR_CPUS_DEFAULT_4
656 select SIBYTE_BCM1x80
658 select SYS_HAS_CPU_SB1
659 select SYS_SUPPORTS_BIG_ENDIAN
660 select SYS_SUPPORTS_HIGHMEM
661 select SYS_SUPPORTS_LITTLE_ENDIAN
662 select ZONE_DMA32 if 64BIT
665 bool "SNI RM200/300/400"
666 select FW_ARC if CPU_LITTLE_ENDIAN
667 select FW_ARC32 if CPU_LITTLE_ENDIAN
668 select FW_SNIPROM if CPU_BIG_ENDIAN
669 select ARCH_MAY_HAVE_PC_FDC
673 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
674 select DMA_NONCOHERENT
675 select GENERIC_ISA_DMA
676 select HAVE_PCSPKR_PLATFORM
683 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
684 select SYS_HAS_CPU_R4X00
685 select SYS_HAS_CPU_R5000
686 select SYS_HAS_CPU_R10000
687 select R5000_CPU_SCACHE
688 select SYS_HAS_EARLY_PRINTK
689 select SYS_SUPPORTS_32BIT_KERNEL
690 select SYS_SUPPORTS_64BIT_KERNEL
691 select SYS_SUPPORTS_BIG_ENDIAN
692 select SYS_SUPPORTS_HIGHMEM
693 select SYS_SUPPORTS_LITTLE_ENDIAN
695 The SNI RM200/300/400 are MIPS-based machines manufactured by
696 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
697 Technology and now in turn merged with Fujitsu. Say Y here to
698 support this machine type.
701 bool "Toshiba TX39 series based machines"
704 bool "Toshiba TX49 series based machines"
706 config MIKROTIK_RB532
707 bool "Mikrotik RB532 boards"
710 select DMA_NONCOHERENT
713 select SYS_HAS_CPU_MIPS32_R1
714 select SYS_SUPPORTS_32BIT_KERNEL
715 select SYS_SUPPORTS_LITTLE_ENDIAN
718 select ARCH_REQUIRE_GPIOLIB
719 select MIPS_L1_CACHE_SHIFT_4
721 Support the Mikrotik(tm) RouterBoard 532 series,
722 based on the IDT RC32434 SoC.
724 config CAVIUM_OCTEON_SOC
725 bool "Cavium Networks Octeon SoC based boards"
727 select 64BIT_PHYS_ADDR
729 select SYS_SUPPORTS_64BIT_KERNEL
730 select SYS_SUPPORTS_BIG_ENDIAN
732 select SYS_SUPPORTS_HOTPLUG_CPU
733 select SYS_HAS_EARLY_PRINTK
734 select SYS_HAS_CPU_CAVIUM_OCTEON
739 select ARCH_REQUIRE_GPIOLIB
742 select ARCH_SPARSEMEM_ENABLE
743 select SYS_SUPPORTS_SMP
744 select NR_CPUS_DEFAULT_16
746 This option supports all of the Octeon reference boards from Cavium
747 Networks. It builds a kernel that dynamically determines the Octeon
748 CPU type and supports all known board reference implementations.
749 Some of the supported boards are:
756 Say Y here for most Octeon reference boards.
759 bool "Netlogic XLR/XLS based systems"
762 select SYS_HAS_CPU_XLR
763 select SYS_SUPPORTS_SMP
766 select SYS_SUPPORTS_32BIT_KERNEL
767 select SYS_SUPPORTS_64BIT_KERNEL
768 select 64BIT_PHYS_ADDR
769 select SYS_SUPPORTS_BIG_ENDIAN
770 select SYS_SUPPORTS_HIGHMEM
772 select NR_CPUS_DEFAULT_32
776 select ZONE_DMA32 if 64BIT
778 select SYS_HAS_EARLY_PRINTK
779 select SYS_SUPPORTS_ZBOOT
780 select SYS_SUPPORTS_ZBOOT_UART16550
782 Support for systems based on Netlogic XLR and XLS processors.
783 Say Y here if you have a XLR or XLS based board.
786 bool "Netlogic XLP based systems"
789 select SYS_HAS_CPU_XLP
790 select SYS_SUPPORTS_SMP
792 select SYS_SUPPORTS_32BIT_KERNEL
793 select SYS_SUPPORTS_64BIT_KERNEL
794 select 64BIT_PHYS_ADDR
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_LITTLE_ENDIAN
797 select SYS_SUPPORTS_HIGHMEM
799 select NR_CPUS_DEFAULT_32
803 select ZONE_DMA32 if 64BIT
805 select SYS_HAS_EARLY_PRINTK
807 select SYS_SUPPORTS_ZBOOT
808 select SYS_SUPPORTS_ZBOOT_UART16550
810 This board is based on Netlogic XLP Processor.
811 Say Y here if you have a XLP based board.
814 bool "Para-Virtualized guest system"
818 select SYS_SUPPORTS_64BIT_KERNEL
819 select SYS_SUPPORTS_32BIT_KERNEL
820 select SYS_SUPPORTS_BIG_ENDIAN
821 select SYS_SUPPORTS_SMP
822 select NR_CPUS_DEFAULT_4
823 select SYS_HAS_EARLY_PRINTK
824 select SYS_HAS_CPU_MIPS32_R2
825 select SYS_HAS_CPU_MIPS64_R2
826 select SYS_HAS_CPU_CAVIUM_OCTEON
830 This option supports guest running under ????
834 source "arch/mips/alchemy/Kconfig"
835 source "arch/mips/ath79/Kconfig"
836 source "arch/mips/bcm47xx/Kconfig"
837 source "arch/mips/bcm63xx/Kconfig"
838 source "arch/mips/jazz/Kconfig"
839 source "arch/mips/jz4740/Kconfig"
840 source "arch/mips/lantiq/Kconfig"
841 source "arch/mips/lasat/Kconfig"
842 source "arch/mips/pmcs-msp71xx/Kconfig"
843 source "arch/mips/ralink/Kconfig"
844 source "arch/mips/sgi-ip27/Kconfig"
845 source "arch/mips/sibyte/Kconfig"
846 source "arch/mips/txx9/Kconfig"
847 source "arch/mips/vr41xx/Kconfig"
848 source "arch/mips/cavium-octeon/Kconfig"
849 source "arch/mips/loongson/Kconfig"
850 source "arch/mips/loongson1/Kconfig"
851 source "arch/mips/netlogic/Kconfig"
852 source "arch/mips/paravirt/Kconfig"
856 config RWSEM_GENERIC_SPINLOCK
860 config RWSEM_XCHGADD_ALGORITHM
863 config ARCH_HAS_ILOG2_U32
867 config ARCH_HAS_ILOG2_U64
871 config GENERIC_HWEIGHT
875 config GENERIC_CALIBRATE_DELAY
879 config SCHED_OMIT_FRAME_POINTER
884 # Select some configuration options automatically based on user selections.
889 config ARCH_MAY_HAVE_PC_FDC
934 select ARCH_REQUIRE_GPIOLIB
940 config ARCH_DMA_ADDR_T_64BIT
941 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
943 config DMA_MAYBE_COHERENT
944 select DMA_NONCOHERENT
950 config DMA_NONCOHERENT
952 select NEED_DMA_MAP_STATE
954 config NEED_DMA_MAP_STATE
957 config SYS_HAS_EARLY_PRINTK
961 bool "Support for hot-pluggable CPUs"
962 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
964 Say Y here to allow turning CPUs off and on. CPUs can be
965 controlled through /sys/devices/system/cpu.
966 (Note: power management support will enable this option
967 automatically on SMP systems. )
968 Say N if you want to disable CPU hotplug.
970 config SYS_SUPPORTS_HOTPLUG_CPU
994 config GENERIC_ISA_DMA
996 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
999 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1001 select GENERIC_ISA_DMA
1006 config HOLES_IN_ZONE
1010 # Endianness selection. Sufficiently obscure so many users don't know what to
1011 # answer,so we try hard to limit the available choices. Also the use of a
1012 # choice statement should be more obvious to the user.
1015 prompt "Endianness selection"
1017 Some MIPS machines can be configured for either little or big endian
1018 byte order. These modes require different kernels and a different
1019 Linux distribution. In general there is one preferred byteorder for a
1020 particular system but some systems are just as commonly used in the
1021 one or the other endianness.
1023 config CPU_BIG_ENDIAN
1025 depends on SYS_SUPPORTS_BIG_ENDIAN
1027 config CPU_LITTLE_ENDIAN
1028 bool "Little endian"
1029 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1036 config SYS_SUPPORTS_APM_EMULATION
1039 config SYS_SUPPORTS_BIG_ENDIAN
1042 config SYS_SUPPORTS_LITTLE_ENDIAN
1045 config SYS_SUPPORTS_HUGETLBFS
1047 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1050 config MIPS_HUGE_TLB_SUPPORT
1051 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1075 config PCI_GT64XXX_PCI0
1078 config NO_EXCEPT_FILL
1085 select DMA_NONCOHERENT
1087 select SWAP_IO_SPACE
1088 select SYS_HAS_CPU_R5500
1089 select SYS_SUPPORTS_32BIT_KERNEL
1090 select SYS_SUPPORTS_64BIT_KERNEL
1091 select SYS_SUPPORTS_BIG_ENDIAN
1098 select DMA_NONCOHERENT
1099 select SYS_HAS_CPU_MIPS32_R2
1100 select SYS_SUPPORTS_32BIT_KERNEL
1101 select SYS_SUPPORTS_LITTLE_ENDIAN
1102 select SYS_SUPPORTS_BIG_ENDIAN
1103 select SYS_SUPPORTS_MIPS16
1104 select CPU_MIPSR2_IRQ_VI
1110 config SWAP_IO_SPACE
1113 config SGI_HAS_INDYDOG
1125 config SGI_HAS_ZILOG
1128 config SGI_HAS_I8042
1131 config DEFAULT_SGI_PARTITION
1143 config MIPS_L1_CACHE_SHIFT_4
1146 config MIPS_L1_CACHE_SHIFT_5
1149 config MIPS_L1_CACHE_SHIFT_6
1152 config MIPS_L1_CACHE_SHIFT_7
1155 config MIPS_L1_CACHE_SHIFT
1157 default "4" if MIPS_L1_CACHE_SHIFT_4
1158 default "5" if MIPS_L1_CACHE_SHIFT_5
1159 default "6" if MIPS_L1_CACHE_SHIFT_6
1160 default "7" if MIPS_L1_CACHE_SHIFT_7
1163 config HAVE_STD_PC_SERIAL_PORT
1167 bool "ARC console support"
1168 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1172 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1177 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1186 menu "CPU selection"
1192 config CPU_LOONGSON3
1193 bool "Loongson 3 CPU"
1194 depends on SYS_HAS_CPU_LOONGSON3
1195 select CPU_SUPPORTS_64BIT_KERNEL
1196 select CPU_SUPPORTS_HIGHMEM
1197 select CPU_SUPPORTS_HUGEPAGES
1198 select WEAK_ORDERING
1199 select WEAK_REORDERING_BEYOND_LLSC
1201 The Loongson 3 processor implements the MIPS64R2 instruction
1202 set with many extensions.
1204 config CPU_LOONGSON2E
1206 depends on SYS_HAS_CPU_LOONGSON2E
1207 select CPU_LOONGSON2
1209 The Loongson 2E processor implements the MIPS III instruction set
1210 with many extensions.
1212 It has an internal FPGA northbridge, which is compatible to
1215 config CPU_LOONGSON2F
1217 depends on SYS_HAS_CPU_LOONGSON2F
1218 select CPU_LOONGSON2
1219 select ARCH_REQUIRE_GPIOLIB
1221 The Loongson 2F processor implements the MIPS III instruction set
1222 with many extensions.
1224 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1225 have a similar programming interface with FPGA northbridge used in
1228 config CPU_LOONGSON1B
1230 depends on SYS_HAS_CPU_LOONGSON1B
1231 select CPU_LOONGSON1
1233 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1234 release 2 instruction set.
1236 config CPU_MIPS32_R1
1237 bool "MIPS32 Release 1"
1238 depends on SYS_HAS_CPU_MIPS32_R1
1239 select CPU_HAS_PREFETCH
1240 select CPU_SUPPORTS_32BIT_KERNEL
1241 select CPU_SUPPORTS_HIGHMEM
1243 Choose this option to build a kernel for release 1 or later of the
1244 MIPS32 architecture. Most modern embedded systems with a 32-bit
1245 MIPS processor are based on a MIPS32 processor. If you know the
1246 specific type of processor in your system, choose those that one
1247 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1248 Release 2 of the MIPS32 architecture is available since several
1249 years so chances are you even have a MIPS32 Release 2 processor
1250 in which case you should choose CPU_MIPS32_R2 instead for better
1253 config CPU_MIPS32_R2
1254 bool "MIPS32 Release 2"
1255 depends on SYS_HAS_CPU_MIPS32_R2
1256 select CPU_HAS_PREFETCH
1257 select CPU_SUPPORTS_32BIT_KERNEL
1258 select CPU_SUPPORTS_HIGHMEM
1259 select CPU_SUPPORTS_MSA
1262 Choose this option to build a kernel for release 2 or later of the
1263 MIPS32 architecture. Most modern embedded systems with a 32-bit
1264 MIPS processor are based on a MIPS32 processor. If you know the
1265 specific type of processor in your system, choose those that one
1266 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1268 config CPU_MIPS64_R1
1269 bool "MIPS64 Release 1"
1270 depends on SYS_HAS_CPU_MIPS64_R1
1271 select CPU_HAS_PREFETCH
1272 select CPU_SUPPORTS_32BIT_KERNEL
1273 select CPU_SUPPORTS_64BIT_KERNEL
1274 select CPU_SUPPORTS_HIGHMEM
1275 select CPU_SUPPORTS_HUGEPAGES
1277 Choose this option to build a kernel for release 1 or later of the
1278 MIPS64 architecture. Many modern embedded systems with a 64-bit
1279 MIPS processor are based on a MIPS64 processor. If you know the
1280 specific type of processor in your system, choose those that one
1281 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1282 Release 2 of the MIPS64 architecture is available since several
1283 years so chances are you even have a MIPS64 Release 2 processor
1284 in which case you should choose CPU_MIPS64_R2 instead for better
1287 config CPU_MIPS64_R2
1288 bool "MIPS64 Release 2"
1289 depends on SYS_HAS_CPU_MIPS64_R2
1290 select CPU_HAS_PREFETCH
1291 select CPU_SUPPORTS_32BIT_KERNEL
1292 select CPU_SUPPORTS_64BIT_KERNEL
1293 select CPU_SUPPORTS_HIGHMEM
1294 select CPU_SUPPORTS_HUGEPAGES
1295 select CPU_SUPPORTS_MSA
1297 Choose this option to build a kernel for release 2 or later of the
1298 MIPS64 architecture. Many modern embedded systems with a 64-bit
1299 MIPS processor are based on a MIPS64 processor. If you know the
1300 specific type of processor in your system, choose those that one
1301 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1305 depends on SYS_HAS_CPU_R3000
1307 select CPU_SUPPORTS_32BIT_KERNEL
1308 select CPU_SUPPORTS_HIGHMEM
1310 Please make sure to pick the right CPU type. Linux/MIPS is not
1311 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1312 *not* work on R4000 machines and vice versa. However, since most
1313 of the supported machines have an R4000 (or similar) CPU, R4x00
1314 might be a safe bet. If the resulting kernel does not work,
1315 try to recompile with R3000.
1319 depends on SYS_HAS_CPU_TX39XX
1320 select CPU_SUPPORTS_32BIT_KERNEL
1324 depends on SYS_HAS_CPU_VR41XX
1325 select CPU_SUPPORTS_32BIT_KERNEL
1326 select CPU_SUPPORTS_64BIT_KERNEL
1328 The options selects support for the NEC VR4100 series of processors.
1329 Only choose this option if you have one of these processors as a
1330 kernel built with this option will not run on any other type of
1331 processor or vice versa.
1335 depends on SYS_HAS_CPU_R4300
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
1339 MIPS Technologies R4300-series processors.
1343 depends on SYS_HAS_CPU_R4X00
1344 select CPU_SUPPORTS_32BIT_KERNEL
1345 select CPU_SUPPORTS_64BIT_KERNEL
1346 select CPU_SUPPORTS_HUGEPAGES
1348 MIPS Technologies R4000-series processors other than 4300, including
1349 the R4000, R4400, R4600, and 4700.
1353 depends on SYS_HAS_CPU_TX49XX
1354 select CPU_HAS_PREFETCH
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
1357 select CPU_SUPPORTS_HUGEPAGES
1361 depends on SYS_HAS_CPU_R5000
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364 select CPU_SUPPORTS_HUGEPAGES
1366 MIPS Technologies R5000-series processors other than the Nevada.
1370 depends on SYS_HAS_CPU_R5432
1371 select CPU_SUPPORTS_32BIT_KERNEL
1372 select CPU_SUPPORTS_64BIT_KERNEL
1373 select CPU_SUPPORTS_HUGEPAGES
1377 depends on SYS_HAS_CPU_R5500
1378 select CPU_SUPPORTS_32BIT_KERNEL
1379 select CPU_SUPPORTS_64BIT_KERNEL
1380 select CPU_SUPPORTS_HUGEPAGES
1382 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1387 depends on SYS_HAS_CPU_R6000
1388 select CPU_SUPPORTS_32BIT_KERNEL
1390 MIPS Technologies R6000 and R6000A series processors. Note these
1391 processors are extremely rare and the support for them is incomplete.
1395 depends on SYS_HAS_CPU_NEVADA
1396 select CPU_SUPPORTS_32BIT_KERNEL
1397 select CPU_SUPPORTS_64BIT_KERNEL
1398 select CPU_SUPPORTS_HUGEPAGES
1400 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1404 depends on SYS_HAS_CPU_R8000
1405 select CPU_HAS_PREFETCH
1406 select CPU_SUPPORTS_64BIT_KERNEL
1408 MIPS Technologies R8000 processors. Note these processors are
1409 uncommon and the support for them is incomplete.
1413 depends on SYS_HAS_CPU_R10000
1414 select CPU_HAS_PREFETCH
1415 select CPU_SUPPORTS_32BIT_KERNEL
1416 select CPU_SUPPORTS_64BIT_KERNEL
1417 select CPU_SUPPORTS_HIGHMEM
1418 select CPU_SUPPORTS_HUGEPAGES
1420 MIPS Technologies R10000-series processors.
1424 depends on SYS_HAS_CPU_RM7000
1425 select CPU_HAS_PREFETCH
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 select CPU_SUPPORTS_HUGEPAGES
1433 depends on SYS_HAS_CPU_SB1
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select CPU_SUPPORTS_64BIT_KERNEL
1436 select CPU_SUPPORTS_HIGHMEM
1437 select CPU_SUPPORTS_HUGEPAGES
1438 select WEAK_ORDERING
1440 config CPU_CAVIUM_OCTEON
1441 bool "Cavium Octeon processor"
1442 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1443 select CPU_HAS_PREFETCH
1444 select CPU_SUPPORTS_64BIT_KERNEL
1445 select WEAK_ORDERING
1446 select CPU_SUPPORTS_HIGHMEM
1447 select CPU_SUPPORTS_HUGEPAGES
1448 select USB_EHCI_BIG_ENDIAN_MMIO
1449 select MIPS_L1_CACHE_SHIFT_7
1451 The Cavium Octeon processor is a highly integrated chip containing
1452 many ethernet hardware widgets for networking tasks. The processor
1453 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1454 Full details can be found at http://www.caviumnetworks.com.
1457 bool "Broadcom BMIPS"
1458 depends on SYS_HAS_CPU_BMIPS
1460 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1461 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1462 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1463 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1464 select CPU_SUPPORTS_32BIT_KERNEL
1465 select DMA_NONCOHERENT
1467 select SWAP_IO_SPACE
1468 select WEAK_ORDERING
1469 select CPU_SUPPORTS_HIGHMEM
1470 select CPU_HAS_PREFETCH
1472 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1475 bool "Netlogic XLR SoC"
1476 depends on SYS_HAS_CPU_XLR
1477 select CPU_SUPPORTS_32BIT_KERNEL
1478 select CPU_SUPPORTS_64BIT_KERNEL
1479 select CPU_SUPPORTS_HIGHMEM
1480 select CPU_SUPPORTS_HUGEPAGES
1481 select WEAK_ORDERING
1482 select WEAK_REORDERING_BEYOND_LLSC
1484 Netlogic Microsystems XLR/XLS processors.
1487 bool "Netlogic XLP SoC"
1488 depends on SYS_HAS_CPU_XLP
1489 select CPU_SUPPORTS_32BIT_KERNEL
1490 select CPU_SUPPORTS_64BIT_KERNEL
1491 select CPU_SUPPORTS_HIGHMEM
1492 select WEAK_ORDERING
1493 select WEAK_REORDERING_BEYOND_LLSC
1494 select CPU_HAS_PREFETCH
1497 Netlogic Microsystems XLP processors.
1500 config CPU_MIPS32_3_5_FEATURES
1501 bool "MIPS32 Release 3.5 Features"
1502 depends on SYS_HAS_CPU_MIPS32_R3_5
1503 depends on CPU_MIPS32_R2
1505 Choose this option to build a kernel for release 2 or later of the
1506 MIPS32 architecture including features from the 3.5 release such as
1507 support for Enhanced Virtual Addressing (EVA).
1509 config CPU_MIPS32_3_5_EVA
1510 bool "Enhanced Virtual Addressing (EVA)"
1511 depends on CPU_MIPS32_3_5_FEATURES
1515 Choose this option if you want to enable the Enhanced Virtual
1516 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1517 One of its primary benefits is an increase in the maximum size
1518 of lowmem (up to 3GB). If unsure, say 'N' here.
1521 config CPU_NOP_WORKAROUNDS
1524 config CPU_JUMP_WORKAROUNDS
1527 config CPU_LOONGSON2F_WORKAROUNDS
1528 bool "Loongson 2F Workarounds"
1530 select CPU_NOP_WORKAROUNDS
1531 select CPU_JUMP_WORKAROUNDS
1533 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1534 require workarounds. Without workarounds the system may hang
1535 unexpectedly. For more information please refer to the gas
1536 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1538 Loongson 2F03 and later have fixed these issues and no workarounds
1539 are needed. The workarounds have no significant side effect on them
1540 but may decrease the performance of the system so this option should
1541 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1544 If unsure, please say Y.
1545 endif # CPU_LOONGSON2F
1547 config SYS_SUPPORTS_ZBOOT
1549 select HAVE_KERNEL_GZIP
1550 select HAVE_KERNEL_BZIP2
1551 select HAVE_KERNEL_LZ4
1552 select HAVE_KERNEL_LZMA
1553 select HAVE_KERNEL_LZO
1554 select HAVE_KERNEL_XZ
1556 config SYS_SUPPORTS_ZBOOT_UART16550
1558 select SYS_SUPPORTS_ZBOOT
1560 config CPU_LOONGSON2
1562 select CPU_SUPPORTS_32BIT_KERNEL
1563 select CPU_SUPPORTS_64BIT_KERNEL
1564 select CPU_SUPPORTS_HIGHMEM
1565 select CPU_SUPPORTS_HUGEPAGES
1567 config CPU_LOONGSON1
1571 select CPU_HAS_PREFETCH
1572 select CPU_SUPPORTS_32BIT_KERNEL
1573 select CPU_SUPPORTS_HIGHMEM
1575 config CPU_BMIPS32_3300
1576 select SMP_UP if SMP
1579 config CPU_BMIPS4350
1581 select SYS_SUPPORTS_SMP
1582 select SYS_SUPPORTS_HOTPLUG_CPU
1584 config CPU_BMIPS4380
1586 select SYS_SUPPORTS_SMP
1587 select SYS_SUPPORTS_HOTPLUG_CPU
1589 config CPU_BMIPS5000
1591 select MIPS_CPU_SCACHE
1592 select SYS_SUPPORTS_SMP
1593 select SYS_SUPPORTS_HOTPLUG_CPU
1595 config SYS_HAS_CPU_LOONGSON3
1597 select CPU_SUPPORTS_CPUFREQ
1599 config SYS_HAS_CPU_LOONGSON2E
1602 config SYS_HAS_CPU_LOONGSON2F
1604 select CPU_SUPPORTS_CPUFREQ
1605 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1606 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1608 config SYS_HAS_CPU_LOONGSON1B
1611 config SYS_HAS_CPU_MIPS32_R1
1614 config SYS_HAS_CPU_MIPS32_R2
1617 config SYS_HAS_CPU_MIPS32_R3_5
1620 config SYS_HAS_CPU_MIPS64_R1
1623 config SYS_HAS_CPU_MIPS64_R2
1626 config SYS_HAS_CPU_R3000
1629 config SYS_HAS_CPU_TX39XX
1632 config SYS_HAS_CPU_VR41XX
1635 config SYS_HAS_CPU_R4300
1638 config SYS_HAS_CPU_R4X00
1641 config SYS_HAS_CPU_TX49XX
1644 config SYS_HAS_CPU_R5000
1647 config SYS_HAS_CPU_R5432
1650 config SYS_HAS_CPU_R5500
1653 config SYS_HAS_CPU_R6000
1656 config SYS_HAS_CPU_NEVADA
1659 config SYS_HAS_CPU_R8000
1662 config SYS_HAS_CPU_R10000
1665 config SYS_HAS_CPU_RM7000
1668 config SYS_HAS_CPU_SB1
1671 config SYS_HAS_CPU_CAVIUM_OCTEON
1674 config SYS_HAS_CPU_BMIPS
1677 config SYS_HAS_CPU_BMIPS32_3300
1679 select SYS_HAS_CPU_BMIPS
1681 config SYS_HAS_CPU_BMIPS4350
1683 select SYS_HAS_CPU_BMIPS
1685 config SYS_HAS_CPU_BMIPS4380
1687 select SYS_HAS_CPU_BMIPS
1689 config SYS_HAS_CPU_BMIPS5000
1691 select SYS_HAS_CPU_BMIPS
1693 config SYS_HAS_CPU_XLR
1696 config SYS_HAS_CPU_XLP
1699 config MIPS_MALTA_PM
1700 depends on MIPS_MALTA
1706 # CPU may reorder R->R, R->W, W->R, W->W
1707 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1709 config WEAK_ORDERING
1713 # CPU may reorder reads and writes beyond LL/SC
1714 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1716 config WEAK_REORDERING_BEYOND_LLSC
1721 # These two indicate any level of the MIPS32 and MIPS64 architecture
1725 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1729 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1732 # These two indicate the revision of the architecture, either Release 1 or Release 2
1736 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1740 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1745 config SYS_SUPPORTS_32BIT_KERNEL
1747 config SYS_SUPPORTS_64BIT_KERNEL
1749 config CPU_SUPPORTS_32BIT_KERNEL
1751 config CPU_SUPPORTS_64BIT_KERNEL
1753 config CPU_SUPPORTS_CPUFREQ
1755 config CPU_SUPPORTS_ADDRWINCFG
1757 config CPU_SUPPORTS_HUGEPAGES
1759 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1761 config MIPS_PGD_C0_CONTEXT
1763 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1766 # Set to y for ptrace access to watch registers.
1768 config HARDWARE_WATCHPOINTS
1770 default y if CPU_MIPSR1 || CPU_MIPSR2
1775 prompt "Kernel code model"
1777 You should only select this option if you have a workload that
1778 actually benefits from 64-bit processing or if your machine has
1779 large memory. You will only be presented a single option in this
1780 menu if your system does not support both 32-bit and 64-bit kernels.
1783 bool "32-bit kernel"
1784 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1787 Select this option if you want to build a 32-bit kernel.
1789 bool "64-bit kernel"
1790 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1792 Select this option if you want to build a 64-bit kernel.
1797 bool "KVM Guest Kernel"
1798 depends on BROKEN_ON_SMP
1800 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1802 config KVM_GUEST_TIMER_FREQ
1803 int "Count/Compare Timer Frequency (MHz)"
1804 depends on KVM_GUEST
1807 Set this to non-zero if building a guest kernel for KVM to skip RTC
1808 emulation when determining guest CPU Frequency. Instead, the guest's
1809 timer frequency is specified directly.
1812 prompt "Kernel page size"
1813 default PAGE_SIZE_4KB
1815 config PAGE_SIZE_4KB
1817 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1819 This option select the standard 4kB Linux page size. On some
1820 R3000-family processors this is the only available page size. Using
1821 4kB page size will minimize memory consumption and is therefore
1822 recommended for low memory systems.
1824 config PAGE_SIZE_8KB
1826 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1828 Using 8kB page size will result in higher performance kernel at
1829 the price of higher memory consumption. This option is available
1830 only on R8000 and cnMIPS processors. Note that you will need a
1831 suitable Linux distribution to support this.
1833 config PAGE_SIZE_16KB
1835 depends on !CPU_R3000 && !CPU_TX39XX
1837 Using 16kB page size will result in higher performance kernel at
1838 the price of higher memory consumption. This option is available on
1839 all non-R3000 family processors. Note that you will need a suitable
1840 Linux distribution to support this.
1842 config PAGE_SIZE_32KB
1844 depends on CPU_CAVIUM_OCTEON
1846 Using 32kB page size will result in higher performance kernel at
1847 the price of higher memory consumption. This option is available
1848 only on cnMIPS cores. Note that you will need a suitable Linux
1849 distribution to support this.
1851 config PAGE_SIZE_64KB
1853 depends on !CPU_R3000 && !CPU_TX39XX
1855 Using 64kB page size will result in higher performance kernel at
1856 the price of higher memory consumption. This option is available on
1857 all non-R3000 family processor. Not that at the time of this
1858 writing this option is still high experimental.
1862 config FORCE_MAX_ZONEORDER
1863 int "Maximum zone order"
1864 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1865 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1866 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1867 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1868 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1869 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1873 The kernel memory allocator divides physically contiguous memory
1874 blocks into "zones", where each zone is a power of two number of
1875 pages. This option selects the largest power of two that the kernel
1876 keeps in the memory allocator. If you need to allocate very large
1877 blocks of physically contiguous memory, then you may need to
1878 increase this value.
1880 This config option is actually maximum order plus one. For example,
1881 a value of 11 means that the largest free memory block is 2^10 pages.
1883 The page size is not necessarily 4KB. Keep this in mind
1884 when choosing a value for this option.
1887 bool "Use GIC global counter for clock events"
1888 depends on IRQ_GIC && !MIPS_SEAD3
1890 Use the GIC global counter for the clock events. The R4K clock
1891 event driver is always present, so if the platform ends up not
1892 detecting a GIC, it will fall back to the R4K timer for the
1893 generation of clock events.
1898 config IP22_CPU_SCACHE
1903 # Support for a MIPS32 / MIPS64 style S-caches
1905 config MIPS_CPU_SCACHE
1908 select MIPS_L1_CACHE_SHIFT_6
1910 config R5000_CPU_SCACHE
1914 config RM7000_CPU_SCACHE
1918 config SIBYTE_DMA_PAGEOPS
1919 bool "Use DMA to clear/copy pages"
1922 Instead of using the CPU to zero and copy pages, use a Data Mover
1923 channel. These DMA channels are otherwise unused by the standard
1924 SiByte Linux port. Seems to give a small performance benefit.
1926 config CPU_HAS_PREFETCH
1929 config CPU_GENERIC_DUMP_TLB
1931 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1935 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1937 config CPU_R4K_CACHE_TLB
1939 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1942 bool "MIPS MT SMP support (1 TC on each available VPE)"
1943 depends on SYS_SUPPORTS_MULTITHREADING
1944 select CPU_MIPSR2_IRQ_VI
1945 select CPU_MIPSR2_IRQ_EI
1951 select SYS_SUPPORTS_SMP
1952 select SYS_SUPPORTS_SCHED_SMT
1953 select MIPS_PERF_SHARED_TC_COUNTERS
1955 This is a kernel model which is known as SMVP. This is supported
1956 on cores with the MT ASE and uses the available VPEs to implement
1957 virtual processors which supports SMP. This is equivalent to the
1958 Intel Hyperthreading feature. For further information go to
1959 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1965 bool "SMT (multithreading) scheduler support"
1966 depends on SYS_SUPPORTS_SCHED_SMT
1969 SMT scheduler support improves the CPU scheduler's decision making
1970 when dealing with MIPS MT enabled cores at a cost of slightly
1971 increased overhead in some places. If unsure say N here.
1973 config SYS_SUPPORTS_SCHED_SMT
1976 config SYS_SUPPORTS_MULTITHREADING
1979 config MIPS_MT_FPAFF
1980 bool "Dynamic FPU affinity for FP-intensive threads"
1982 depends on MIPS_MT_SMP
1984 config MIPS_VPE_LOADER
1985 bool "VPE loader support."
1986 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1987 select CPU_MIPSR2_IRQ_VI
1988 select CPU_MIPSR2_IRQ_EI
1991 Includes a loader for loading an elf relocatable object
1992 onto another VPE and running it.
1994 config MIPS_VPE_LOADER_CMP
1997 depends on MIPS_VPE_LOADER && MIPS_CMP
1999 config MIPS_VPE_LOADER_MT
2002 depends on MIPS_VPE_LOADER && !MIPS_CMP
2004 config MIPS_VPE_LOADER_TOM
2005 bool "Load VPE program into memory hidden from linux"
2006 depends on MIPS_VPE_LOADER
2009 The loader can use memory that is present but has been hidden from
2010 Linux using the kernel command line option "mem=xxMB". It's up to
2011 you to ensure the amount you put in the option and the space your
2012 program requires is less or equal to the amount physically present.
2014 config MIPS_VPE_APSP_API
2015 bool "Enable support for AP/SP API (RTLX)"
2016 depends on MIPS_VPE_LOADER
2019 config MIPS_VPE_APSP_API_CMP
2022 depends on MIPS_VPE_APSP_API && MIPS_CMP
2024 config MIPS_VPE_APSP_API_MT
2027 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2030 bool "MIPS CMP framework support (DEPRECATED)"
2031 depends on SYS_SUPPORTS_MIPS_CMP
2034 select WEAK_ORDERING
2037 Select this if you are using a bootloader which implements the "CMP
2038 framework" protocol (ie. YAMON) and want your kernel to make use of
2039 its ability to start secondary CPUs.
2041 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2045 bool "MIPS Coherent Processing System support"
2046 depends on SYS_SUPPORTS_MIPS_CPS
2049 select MIPS_CPS_PM if HOTPLUG_CPU
2052 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2053 select SYS_SUPPORTS_HOTPLUG_CPU
2054 select SYS_SUPPORTS_SMP
2055 select WEAK_ORDERING
2057 Select this if you wish to run an SMP kernel across multiple cores
2058 within a MIPS Coherent Processing System. When this option is
2059 enabled the kernel will probe for other cores and boot them with
2060 no external assistance. It is safe to enable this when hardware
2061 support is unavailable.
2076 config SB1_PASS_1_WORKAROUNDS
2078 depends on CPU_SB1_PASS_1
2081 config SB1_PASS_2_WORKAROUNDS
2083 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2086 config SB1_PASS_2_1_WORKAROUNDS
2088 depends on CPU_SB1 && CPU_SB1_PASS_2
2092 config 64BIT_PHYS_ADDR
2095 config ARCH_PHYS_ADDR_T_64BIT
2096 def_bool 64BIT_PHYS_ADDR
2098 config CPU_HAS_SMARTMIPS
2099 depends on SYS_SUPPORTS_SMARTMIPS
2100 bool "Support for the SmartMIPS ASE"
2102 SmartMIPS is a extension of the MIPS32 architecture aimed at
2103 increased security at both hardware and software level for
2104 smartcards. Enabling this option will allow proper use of the
2105 SmartMIPS instructions by Linux applications. However a kernel with
2106 this option will not work on a MIPS core without SmartMIPS core. If
2107 you don't know you probably don't have SmartMIPS and should say N
2110 config CPU_MICROMIPS
2111 depends on SYS_SUPPORTS_MICROMIPS
2112 bool "Build kernel using microMIPS ISA"
2114 When this option is enabled the kernel will be built using the
2118 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2119 depends on CPU_SUPPORTS_MSA
2120 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2122 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2123 and a set of SIMD instructions to operate on them. When this option
2124 is enabled the kernel will support allocating & switching MSA
2125 vector register contexts. If you know that your kernel will only be
2126 running on CPUs which do not support MSA or that your userland will
2127 not be making use of it then you may wish to say N here to reduce
2128 the size & complexity of your kernel.
2139 # Vectored interrupt mode is an R2 feature
2141 config CPU_MIPSR2_IRQ_VI
2145 # Extended interrupt mode is an R2 feature
2147 config CPU_MIPSR2_IRQ_EI
2152 depends on !CPU_R3000
2158 config CPU_DADDI_WORKAROUNDS
2161 config CPU_R4000_WORKAROUNDS
2163 select CPU_R4400_WORKAROUNDS
2165 config CPU_R4400_WORKAROUNDS
2169 # - Highmem only makes sense for the 32-bit kernel.
2170 # - The current highmem code will only work properly on physically indexed
2171 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2172 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2173 # moment we protect the user and offer the highmem option only on machines
2174 # where it's known to be safe. This will not offer highmem on a few systems
2175 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2176 # indexed CPUs but we're playing safe.
2177 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2178 # know they might have memory configurations that could make use of highmem
2182 bool "High Memory Support"
2183 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2185 config CPU_SUPPORTS_HIGHMEM
2188 config SYS_SUPPORTS_HIGHMEM
2191 config SYS_SUPPORTS_SMARTMIPS
2194 config SYS_SUPPORTS_MICROMIPS
2197 config SYS_SUPPORTS_MIPS16
2200 This option must be set if a kernel might be executed on a MIPS16-
2201 enabled CPU even if MIPS16 is not actually being used. In other
2202 words, it makes the kernel MIPS16-tolerant.
2204 config CPU_SUPPORTS_MSA
2207 config ARCH_FLATMEM_ENABLE
2209 depends on !NUMA && !CPU_LOONGSON2
2211 config ARCH_DISCONTIGMEM_ENABLE
2213 default y if SGI_IP27
2215 Say Y to support efficient handling of discontiguous physical memory,
2216 for architectures which are either NUMA (Non-Uniform Memory Access)
2217 or have huge holes in the physical address space for other reasons.
2218 See <file:Documentation/vm/numa> for more.
2220 config ARCH_SPARSEMEM_ENABLE
2222 select SPARSEMEM_STATIC
2226 depends on SYS_SUPPORTS_NUMA
2228 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2229 Access). This option improves performance on systems with more
2230 than two nodes; on two node systems it is generally better to
2231 leave it disabled; on single node systems disable this option
2234 config SYS_SUPPORTS_NUMA
2240 depends on NEED_MULTIPLE_NODES
2242 config HW_PERF_EVENTS
2243 bool "Enable hardware performance counter support for perf events"
2244 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2247 Enable hardware performance counter support for perf events. If
2248 disabled, perf events will use software events only.
2253 bool "Multi-Processing support"
2254 depends on SYS_SUPPORTS_SMP
2256 This enables support for systems with more than one CPU. If you have
2257 a system with only one CPU, say N. If you have a system with more
2258 than one CPU, say Y.
2260 If you say N here, the kernel will run on uni- and multiprocessor
2261 machines, but will use only one CPU of a multiprocessor machine. If
2262 you say Y here, the kernel will run on many, but not all,
2263 uniprocessor machines. On a uniprocessor machine, the kernel
2264 will run faster if you say N here.
2266 People using multiprocessor machines who say Y here should also say
2267 Y to "Enhanced Real Time Clock Support", below.
2269 See also the SMP-HOWTO available at
2270 <http://www.tldp.org/docs.html#howto>.
2272 If you don't know what to do here, say N.
2277 config SYS_SUPPORTS_MIPS_CMP
2280 config SYS_SUPPORTS_MIPS_CPS
2283 config SYS_SUPPORTS_SMP
2286 config NR_CPUS_DEFAULT_4
2289 config NR_CPUS_DEFAULT_8
2292 config NR_CPUS_DEFAULT_16
2295 config NR_CPUS_DEFAULT_32
2298 config NR_CPUS_DEFAULT_64
2302 int "Maximum number of CPUs (2-256)"
2305 default "4" if NR_CPUS_DEFAULT_4
2306 default "8" if NR_CPUS_DEFAULT_8
2307 default "16" if NR_CPUS_DEFAULT_16
2308 default "32" if NR_CPUS_DEFAULT_32
2309 default "64" if NR_CPUS_DEFAULT_64
2311 This allows you to specify the maximum number of CPUs which this
2312 kernel will support. The maximum supported value is 32 for 32-bit
2313 kernel and 64 for 64-bit kernels; the minimum value which makes
2314 sense is 1 for Qemu (useful only for kernel debugging purposes)
2315 and 2 for all others.
2317 This is purely to save memory - each supported CPU adds
2318 approximately eight kilobytes to the kernel image. For best
2319 performance should round up your number of processors to the next
2322 config MIPS_PERF_SHARED_TC_COUNTERS
2326 # Timer Interrupt Frequency Configuration
2330 prompt "Timer frequency"
2333 Allows the configuration of the timer frequency.
2336 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2339 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2342 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2345 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2348 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2351 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2354 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2358 config SYS_SUPPORTS_48HZ
2361 config SYS_SUPPORTS_100HZ
2364 config SYS_SUPPORTS_128HZ
2367 config SYS_SUPPORTS_250HZ
2370 config SYS_SUPPORTS_256HZ
2373 config SYS_SUPPORTS_1000HZ
2376 config SYS_SUPPORTS_1024HZ
2379 config SYS_SUPPORTS_ARBIT_HZ
2381 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2382 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2383 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2384 !SYS_SUPPORTS_1024HZ
2389 default 100 if HZ_100
2390 default 128 if HZ_128
2391 default 250 if HZ_250
2392 default 256 if HZ_256
2393 default 1000 if HZ_1000
2394 default 1024 if HZ_1024
2396 source "kernel/Kconfig.preempt"
2399 bool "Kexec system call"
2401 kexec is a system call that implements the ability to shutdown your
2402 current kernel, and to start another kernel. It is like a reboot
2403 but it is independent of the system firmware. And like a reboot
2404 you can start any kernel with it, not just Linux.
2406 The name comes from the similarity to the exec system call.
2408 It is an ongoing process to be certain the hardware in a machine
2409 is properly shutdown, so do not be surprised if this code does not
2410 initially work for you. As of this writing the exact hardware
2411 interface is strongly in flux, so no good recommendation can be
2415 bool "Kernel crash dumps"
2417 Generate crash dump after being started by kexec.
2418 This should be normally only set in special crash dump kernels
2419 which are loaded in the main kernel with kexec-tools into
2420 a specially reserved region and then later executed after
2421 a crash by kdump/kexec. The crash dump kernel must be compiled
2422 to a memory address not used by the main kernel or firmware using
2425 config PHYSICAL_START
2426 hex "Physical address where the kernel is loaded"
2427 default "0xffffffff84000000" if 64BIT
2428 default "0x84000000" if 32BIT
2429 depends on CRASH_DUMP
2431 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2432 If you plan to use kernel for capturing the crash dump change
2433 this value to start of the reserved region (the "X" value as
2434 specified in the "crashkernel=YM@XM" command line boot parameter
2435 passed to the panic-ed kernel).
2438 bool "Enable seccomp to safely compute untrusted bytecode"
2442 This kernel feature is useful for number crunching applications
2443 that may need to compute untrusted bytecode during their
2444 execution. By using pipes or other transports made available to
2445 the process as file descriptors supporting the read/write
2446 syscalls, it's possible to isolate those applications in
2447 their own address space using seccomp. Once seccomp is
2448 enabled via /proc/<pid>/seccomp, it cannot be disabled
2449 and the task is only allowed to execute a few safe syscalls
2450 defined by each seccomp mode.
2452 If unsure, say Y. Only embedded should say N here.
2454 config MIPS_O32_FP64_SUPPORT
2455 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2456 depends on 32BIT || MIPS32_O32
2458 When this is enabled, the kernel will support use of 64-bit floating
2459 point registers with binaries using the O32 ABI along with the
2460 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2461 32-bit MIPS systems this support is at the cost of increasing the
2462 size and complexity of the compiled FPU emulator. Thus if you are
2463 running a MIPS32 system and know that none of your userland binaries
2464 will require 64-bit floating point, you may wish to reduce the size
2465 of your kernel & potentially improve FP emulation performance by
2468 Although binutils currently supports use of this flag the details
2469 concerning its effect upon the O32 ABI in userland are still being
2470 worked on. In order to avoid userland becoming dependant upon current
2471 behaviour before the details have been finalised, this option should
2472 be considered experimental and only enabled by those working upon
2480 select OF_EARLY_FLATTREE
2485 config LOCKDEP_SUPPORT
2489 config STACKTRACE_SUPPORT
2493 source "init/Kconfig"
2495 source "kernel/Kconfig.freezer"
2497 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2505 bool "Support for PCI controller"
2506 depends on HW_HAS_PCI
2508 select NO_GENERIC_PCI_IOPORT_MAP
2510 Find out whether you have a PCI motherboard. PCI is the name of a
2511 bus system, i.e. the way the CPU talks to the other stuff inside
2512 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2516 bool "Support for HT-linked PCI"
2518 depends on CPU_LOONGSON3
2522 Loongson family machines use Hyper-Transport bus for inter-core
2523 connection and device connection. The PCI bus is a subordinate
2524 linked at HT. Choose Y for Loongson-3 based machines.
2529 source "drivers/pci/Kconfig"
2531 source "drivers/pci/pcie/Kconfig"
2534 # ISA support is now enabled via select. Too many systems still have the one
2535 # or other ISA chip on the board that users don't know about so don't expect
2536 # users to choose the right thing ...
2543 depends on HW_HAS_EISA
2545 select GENERIC_ISA_DMA
2547 The Extended Industry Standard Architecture (EISA) bus was
2548 developed as an open alternative to the IBM MicroChannel bus.
2550 The EISA bus provided some of the features of the IBM MicroChannel
2551 bus while maintaining backward compatibility with cards made for
2552 the older ISA bus. The EISA bus saw limited use between 1988 and
2553 1995 when it was made obsolete by the PCI bus.
2555 Say Y here if you are building a kernel for an EISA-based machine.
2559 source "drivers/eisa/Kconfig"
2562 bool "TURBOchannel support"
2563 depends on MACH_DECSTATION
2565 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2566 processors. TURBOchannel programming specifications are available
2568 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2570 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2571 Linux driver support status is documented at:
2572 <http://www.linux-mips.org/wiki/DECstation>
2582 select MIPS_EXTERNAL_TIMER
2590 source "drivers/pcmcia/Kconfig"
2592 source "drivers/pci/hotplug/Kconfig"
2595 tristate "RapidIO support"
2599 If you say Y here, the kernel will include drivers and
2600 infrastructure code to support RapidIO interconnect devices.
2602 source "drivers/rapidio/Kconfig"
2606 menu "Executable file formats"
2608 source "fs/Kconfig.binfmt"
2613 config MIPS32_COMPAT
2614 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2617 Select this option if you want Linux/MIPS 32-bit binary
2618 compatibility. Since all software available for Linux/MIPS is
2619 currently 32-bit you should say Y here.
2623 depends on MIPS32_COMPAT
2624 select ARCH_WANT_OLD_COMPAT_IPC
2627 config SYSVIPC_COMPAT
2629 depends on COMPAT && SYSVIPC
2633 bool "Kernel support for o32 binaries"
2634 depends on MIPS32_COMPAT
2636 Select this option if you want to run o32 binaries. These are pure
2637 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2638 existing binaries are in this format.
2643 bool "Kernel support for n32 binaries"
2644 depends on MIPS32_COMPAT
2646 Select this option if you want to run n32 binaries. These are
2647 64-bit binaries using 32-bit quantities for addressing and certain
2648 data that would normally be 64-bit. They are used in special
2655 default y if MIPS32_O32 || MIPS32_N32
2659 menu "Power management options"
2661 config ARCH_HIBERNATION_POSSIBLE
2663 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2665 config ARCH_SUSPEND_POSSIBLE
2667 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2669 source "kernel/power/Kconfig"
2673 config MIPS_EXTERNAL_TIMER
2676 menu "CPU Power Management"
2678 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2679 source "drivers/cpufreq/Kconfig"
2682 source "drivers/cpuidle/Kconfig"
2686 source "net/Kconfig"
2688 source "drivers/Kconfig"
2690 source "drivers/firmware/Kconfig"
2694 source "arch/mips/Kconfig.debug"
2696 source "security/Kconfig"
2698 source "crypto/Kconfig"
2700 source "lib/Kconfig"
2702 source "arch/mips/kvm/Kconfig"