4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
13 select HAVE_ARCH_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
23 select HAVE_KRETPROBES
24 select HAVE_DEBUG_KMEMLEAK
25 select HAVE_SYSCALL_TRACEPOINTS
26 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
28 select RTC_LIB if !MACH_LOONGSON
29 select GENERIC_ATOMIC64 if !64BIT
30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
32 select HAVE_DMA_API_DEBUG
33 select GENERIC_IRQ_PROBE
34 select GENERIC_IRQ_SHOW
35 select GENERIC_PCI_IOMAP
36 select HAVE_ARCH_JUMP_LABEL
37 select ARCH_WANT_IPC_PARSE_VERSION
38 select IRQ_FORCED_THREADING
40 select HAVE_MEMBLOCK_NODE_MAP
41 select ARCH_DISCARD_MEMBLOCK
42 select GENERIC_SMP_IDLE_THREAD
43 select BUILDTIME_EXTABLE_SORT
44 select GENERIC_CLOCKEVENTS
45 select GENERIC_CMOS_UPDATE
46 select HAVE_MOD_ARCH_SPECIFIC
48 select MODULES_USE_ELF_REL if MODULES
49 select MODULES_USE_ELF_RELA if MODULES && 64BIT
50 select CLONE_BACKWARDS
51 select HAVE_DEBUG_STACKOVERFLOW
52 select HAVE_CC_STACKPROTECTOR
53 select CPU_PM if CPU_IDLE
54 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
56 menu "Machine selection"
63 bool "Alchemy processor based machines"
64 select 64BIT_PHYS_ADDR
68 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
69 select SYS_HAS_CPU_MIPS32_R1
70 select SYS_SUPPORTS_32BIT_KERNEL
71 select SYS_SUPPORTS_APM_EMULATION
72 select ARCH_REQUIRE_GPIOLIB
73 select SYS_SUPPORTS_ZBOOT
77 bool "Texas Instruments AR7"
79 select DMA_NONCOHERENT
85 select SYS_HAS_CPU_MIPS32_R1
86 select SYS_HAS_EARLY_PRINTK
87 select SYS_SUPPORTS_32BIT_KERNEL
88 select SYS_SUPPORTS_LITTLE_ENDIAN
89 select SYS_SUPPORTS_MIPS16
90 select SYS_SUPPORTS_ZBOOT_UART16550
91 select ARCH_REQUIRE_GPIOLIB
95 Support for the Texas Instruments AR7 System-on-a-Chip
96 family: TNETD7100, 7200 and 7300.
99 bool "Atheros AR71XX/AR724X/AR913X based boards"
100 select ARCH_REQUIRE_GPIOLIB
104 select DMA_NONCOHERENT
109 select SYS_HAS_CPU_MIPS32_R2
110 select SYS_HAS_EARLY_PRINTK
111 select SYS_SUPPORTS_32BIT_KERNEL
112 select SYS_SUPPORTS_BIG_ENDIAN
113 select SYS_SUPPORTS_MIPS16
115 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
118 bool "Broadcom BCM47XX based boards"
119 select ARCH_WANT_OPTIONAL_GPIOLIB
123 select DMA_NONCOHERENT
126 select SYS_HAS_CPU_MIPS32_R1
127 select NO_EXCEPT_FILL
128 select SYS_SUPPORTS_32BIT_KERNEL
129 select SYS_SUPPORTS_LITTLE_ENDIAN
130 select SYS_SUPPORTS_MIPS16
131 select SYS_HAS_EARLY_PRINTK
132 select USE_GENERIC_EARLY_PRINTK_8250
134 select LEDS_GPIO_REGISTER
136 Support for BCM47XX based boards
139 bool "Broadcom BCM63XX based boards"
144 select DMA_NONCOHERENT
146 select SYS_SUPPORTS_32BIT_KERNEL
147 select SYS_SUPPORTS_BIG_ENDIAN
148 select SYS_HAS_EARLY_PRINTK
150 select ARCH_REQUIRE_GPIOLIB
152 select MIPS_L1_CACHE_SHIFT_4
154 Support for BCM63XX based boards
161 select DMA_NONCOHERENT
167 select PCI_GT64XXX_PCI0
169 select SYS_HAS_CPU_NEVADA
170 select SYS_HAS_EARLY_PRINTK
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_64BIT_KERNEL
173 select SYS_SUPPORTS_LITTLE_ENDIAN
174 select USE_GENERIC_EARLY_PRINTK_8250
176 config MACH_DECSTATION
180 select CEVT_R4K if CPU_R4X00
182 select CSRC_R4K if CPU_R4X00
183 select CPU_DADDI_WORKAROUNDS if 64BIT
184 select CPU_R4000_WORKAROUNDS if 64BIT
185 select CPU_R4400_WORKAROUNDS if 64BIT
186 select DMA_NONCOHERENT
189 select SYS_HAS_CPU_R3000
190 select SYS_HAS_CPU_R4X00
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_64BIT_KERNEL
193 select SYS_SUPPORTS_LITTLE_ENDIAN
194 select SYS_SUPPORTS_128HZ
195 select SYS_SUPPORTS_256HZ
196 select SYS_SUPPORTS_1024HZ
197 select MIPS_L1_CACHE_SHIFT_4
199 This enables support for DEC's MIPS based workstations. For details
200 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
201 DECstation porting pages on <http://decstation.unix-ag.org/>.
203 If you have one of the following DECstation Models you definitely
204 want to choose R4xx0 for the CPU Type:
211 otherwise choose R3000.
214 bool "Jazz family of machines"
217 select ARCH_MAY_HAVE_PC_FDC
220 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
221 select GENERIC_ISA_DMA
222 select HAVE_PCSPKR_PLATFORM
227 select SYS_HAS_CPU_R4X00
228 select SYS_SUPPORTS_32BIT_KERNEL
229 select SYS_SUPPORTS_64BIT_KERNEL
230 select SYS_SUPPORTS_100HZ
232 This a family of machines based on the MIPS R4030 chipset which was
233 used by several vendors to build RISC/os and Windows NT workstations.
234 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
235 Olivetti M700-10 workstations.
238 bool "Ingenic JZ4740 based machines"
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_LITTLE_ENDIAN
242 select SYS_SUPPORTS_ZBOOT_UART16550
243 select DMA_NONCOHERENT
245 select ARCH_REQUIRE_GPIOLIB
246 select SYS_HAS_EARLY_PRINTK
248 select GENERIC_IRQ_CHIP
251 bool "Lantiq based platforms"
252 select DMA_NONCOHERENT
256 select SYS_HAS_CPU_MIPS32_R1
257 select SYS_HAS_CPU_MIPS32_R2
258 select SYS_SUPPORTS_BIG_ENDIAN
259 select SYS_SUPPORTS_32BIT_KERNEL
260 select SYS_SUPPORTS_MIPS16
261 select SYS_SUPPORTS_MULTITHREADING
262 select SYS_HAS_EARLY_PRINTK
263 select ARCH_REQUIRE_GPIOLIB
266 select HAVE_MACH_CLKDEV
270 select PINCTRL_LANTIQ
273 bool "LASAT Networks platforms"
277 select DMA_NONCOHERENT
278 select SYS_HAS_EARLY_PRINTK
281 select PCI_GT64XXX_PCI0
283 select R5000_CPU_SCACHE
284 select SYS_HAS_CPU_R5000
285 select SYS_SUPPORTS_32BIT_KERNEL
286 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
287 select SYS_SUPPORTS_LITTLE_ENDIAN
290 bool "Loongson family of machines"
291 select SYS_SUPPORTS_ZBOOT
293 This enables the support of Loongson family of machines.
295 Loongson is a family of general-purpose MIPS-compatible CPUs.
296 developed at Institute of Computing Technology (ICT),
297 Chinese Academy of Sciences (CAS) in the People's Republic
298 of China. The chief architect is Professor Weiwu Hu.
300 config MACH_LOONGSON1
301 bool "Loongson 1 family of machines"
302 select SYS_SUPPORTS_ZBOOT
304 This enables support for the Loongson 1 based machines.
306 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
307 the ICT (Institute of Computing Technology) and the Chinese Academy
311 bool "MIPS Malta board"
312 select ARCH_MAY_HAVE_PC_FDC
318 select DMA_MAYBE_COHERENT
319 select GENERIC_ISA_DMA
320 select HAVE_PCSPKR_PLATFORM
327 select MIPS_CPU_SCACHE
328 select PCI_GT64XXX_PCI0
331 select SYS_HAS_CPU_MIPS32_R1
332 select SYS_HAS_CPU_MIPS32_R2
333 select SYS_HAS_CPU_MIPS32_R3_5
334 select SYS_HAS_CPU_MIPS64_R1
335 select SYS_HAS_CPU_MIPS64_R2
336 select SYS_HAS_CPU_NEVADA
337 select SYS_HAS_CPU_RM7000
338 select SYS_SUPPORTS_32BIT_KERNEL
339 select SYS_SUPPORTS_64BIT_KERNEL
340 select SYS_SUPPORTS_BIG_ENDIAN
341 select SYS_SUPPORTS_LITTLE_ENDIAN
342 select SYS_SUPPORTS_MIPS_CMP
343 select SYS_SUPPORTS_MIPS_CPS
344 select SYS_SUPPORTS_MIPS16
345 select SYS_SUPPORTS_MULTITHREADING
346 select SYS_SUPPORTS_SMARTMIPS
347 select SYS_SUPPORTS_ZBOOT
349 This enables support for the MIPS Technologies Malta evaluation
353 bool "MIPS SEAD3 board"
359 select CPU_MIPSR2_IRQ_VI
360 select CPU_MIPSR2_IRQ_EI
361 select DMA_NONCOHERENT
366 select SYS_HAS_CPU_MIPS32_R1
367 select SYS_HAS_CPU_MIPS32_R2
368 select SYS_HAS_CPU_MIPS64_R1
369 select SYS_HAS_EARLY_PRINTK
370 select SYS_SUPPORTS_32BIT_KERNEL
371 select SYS_SUPPORTS_64BIT_KERNEL
372 select SYS_SUPPORTS_BIG_ENDIAN
373 select SYS_SUPPORTS_LITTLE_ENDIAN
374 select SYS_SUPPORTS_SMARTMIPS
375 select SYS_SUPPORTS_MICROMIPS
376 select SYS_SUPPORTS_MIPS16
377 select USB_EHCI_BIG_ENDIAN_DESC
378 select USB_EHCI_BIG_ENDIAN_MMIO
381 This enables support for the MIPS Technologies SEAD3 evaluation
385 bool "NEC EMMA2RH Mark-eins board"
389 This enables support for the NEC Electronics Mark-eins boards.
392 bool "NEC VR4100 series based machines"
395 select SYS_HAS_CPU_VR41XX
396 select SYS_SUPPORTS_MIPS16
397 select ARCH_REQUIRE_GPIOLIB
400 bool "NXP STB220 board"
403 Support for NXP Semiconductors STB220 Development Board.
410 Support for NXP Semiconductors STB225 Development Board.
413 bool "PMC-Sierra MSP chipsets"
416 select DMA_NONCOHERENT
418 select NO_EXCEPT_FILL
420 select SYS_HAS_CPU_MIPS32_R1
421 select SYS_HAS_CPU_MIPS32_R2
422 select SYS_SUPPORTS_32BIT_KERNEL
423 select SYS_SUPPORTS_BIG_ENDIAN
424 select SYS_SUPPORTS_MIPS16
427 select SERIAL_8250_CONSOLE
428 select USB_EHCI_BIG_ENDIAN_MMIO
429 select USB_EHCI_BIG_ENDIAN_DESC
431 This adds support for the PMC-Sierra family of Multi-Service
432 Processor System-On-A-Chips. These parts include a number
433 of integrated peripherals, interfaces and DSPs in addition to
434 a variety of MIPS cores.
437 bool "Ralink based machines"
441 select DMA_NONCOHERENT
444 select SYS_HAS_CPU_MIPS32_R1
445 select SYS_HAS_CPU_MIPS32_R2
446 select SYS_SUPPORTS_32BIT_KERNEL
447 select SYS_SUPPORTS_LITTLE_ENDIAN
448 select SYS_SUPPORTS_MIPS16
449 select SYS_HAS_EARLY_PRINTK
450 select HAVE_MACH_CLKDEV
452 select ARCH_HAS_RESET_CONTROLLER
453 select RESET_CONTROLLER
456 bool "SGI IP22 (Indy/Indigo2)"
462 select DEFAULT_SGI_PARTITION
463 select DMA_NONCOHERENT
467 select IP22_CPU_SCACHE
469 select GENERIC_ISA_DMA_SUPPORT_BROKEN
471 select SGI_HAS_INDYDOG
477 select SYS_HAS_CPU_R4X00
478 select SYS_HAS_CPU_R5000
480 # Disable EARLY_PRINTK for now since it leads to overwritten prom
481 # memory during early boot on some machines.
483 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
484 # for a more details discussion
486 # select SYS_HAS_EARLY_PRINTK
487 select SYS_SUPPORTS_32BIT_KERNEL
488 select SYS_SUPPORTS_64BIT_KERNEL
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select MIPS_L1_CACHE_SHIFT_7
492 This are the SGI Indy, Challenge S and Indigo2, as well as certain
493 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
494 that runs on these, say Y here.
497 bool "SGI IP27 (Origin200/2000)"
501 select DEFAULT_SGI_PARTITION
503 select SYS_HAS_EARLY_PRINTK
505 select NR_CPUS_DEFAULT_64
506 select SYS_HAS_CPU_R10000
507 select SYS_SUPPORTS_64BIT_KERNEL
508 select SYS_SUPPORTS_BIG_ENDIAN
509 select SYS_SUPPORTS_NUMA
510 select SYS_SUPPORTS_SMP
511 select MIPS_L1_CACHE_SHIFT_7
513 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
514 workstations. To compile a Linux kernel that runs on these, say Y
518 bool "SGI IP28 (Indigo2 R10k)"
524 select DEFAULT_SGI_PARTITION
525 select DMA_NONCOHERENT
526 select GENERIC_ISA_DMA_SUPPORT_BROKEN
532 select SGI_HAS_INDYDOG
538 select SYS_HAS_CPU_R10000
540 # Disable EARLY_PRINTK for now since it leads to overwritten prom
541 # memory during early boot on some machines.
543 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
544 # for a more details discussion
546 # select SYS_HAS_EARLY_PRINTK
547 select SYS_SUPPORTS_64BIT_KERNEL
548 select SYS_SUPPORTS_BIG_ENDIAN
549 select MIPS_L1_CACHE_SHIFT_7
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
2035 select SYS_SUPPORTS_SMP
2036 select WEAK_ORDERING
2039 Select this if you are using a bootloader which implements the "CMP
2040 framework" protocol (ie. YAMON) and want your kernel to make use of
2041 its ability to start secondary CPUs.
2043 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2047 bool "MIPS Coherent Processing System support"
2048 depends on SYS_SUPPORTS_MIPS_CPS
2051 select MIPS_CPS_PM if HOTPLUG_CPU
2054 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2055 select SYS_SUPPORTS_HOTPLUG_CPU
2056 select SYS_SUPPORTS_SMP
2057 select WEAK_ORDERING
2059 Select this if you wish to run an SMP kernel across multiple cores
2060 within a MIPS Coherent Processing System. When this option is
2061 enabled the kernel will probe for other cores and boot them with
2062 no external assistance. It is safe to enable this when hardware
2063 support is unavailable.
2078 config SB1_PASS_1_WORKAROUNDS
2080 depends on CPU_SB1_PASS_1
2083 config SB1_PASS_2_WORKAROUNDS
2085 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2088 config SB1_PASS_2_1_WORKAROUNDS
2090 depends on CPU_SB1 && CPU_SB1_PASS_2
2094 config 64BIT_PHYS_ADDR
2097 config ARCH_PHYS_ADDR_T_64BIT
2098 def_bool 64BIT_PHYS_ADDR
2100 config CPU_HAS_SMARTMIPS
2101 depends on SYS_SUPPORTS_SMARTMIPS
2102 bool "Support for the SmartMIPS ASE"
2104 SmartMIPS is a extension of the MIPS32 architecture aimed at
2105 increased security at both hardware and software level for
2106 smartcards. Enabling this option will allow proper use of the
2107 SmartMIPS instructions by Linux applications. However a kernel with
2108 this option will not work on a MIPS core without SmartMIPS core. If
2109 you don't know you probably don't have SmartMIPS and should say N
2112 config CPU_MICROMIPS
2113 depends on SYS_SUPPORTS_MICROMIPS
2114 bool "Build kernel using microMIPS ISA"
2116 When this option is enabled the kernel will be built using the
2120 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2121 depends on CPU_SUPPORTS_MSA
2122 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2124 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2125 and a set of SIMD instructions to operate on them. When this option
2126 is enabled the kernel will support allocating & switching MSA
2127 vector register contexts. If you know that your kernel will only be
2128 running on CPUs which do not support MSA or that your userland will
2129 not be making use of it then you may wish to say N here to reduce
2130 the size & complexity of your kernel.
2141 # Vectored interrupt mode is an R2 feature
2143 config CPU_MIPSR2_IRQ_VI
2147 # Extended interrupt mode is an R2 feature
2149 config CPU_MIPSR2_IRQ_EI
2154 depends on !CPU_R3000
2160 config CPU_DADDI_WORKAROUNDS
2163 config CPU_R4000_WORKAROUNDS
2165 select CPU_R4400_WORKAROUNDS
2167 config CPU_R4400_WORKAROUNDS
2171 # - Highmem only makes sense for the 32-bit kernel.
2172 # - The current highmem code will only work properly on physically indexed
2173 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2174 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2175 # moment we protect the user and offer the highmem option only on machines
2176 # where it's known to be safe. This will not offer highmem on a few systems
2177 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2178 # indexed CPUs but we're playing safe.
2179 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2180 # know they might have memory configurations that could make use of highmem
2184 bool "High Memory Support"
2185 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2187 config CPU_SUPPORTS_HIGHMEM
2190 config SYS_SUPPORTS_HIGHMEM
2193 config SYS_SUPPORTS_SMARTMIPS
2196 config SYS_SUPPORTS_MICROMIPS
2199 config SYS_SUPPORTS_MIPS16
2202 This option must be set if a kernel might be executed on a MIPS16-
2203 enabled CPU even if MIPS16 is not actually being used. In other
2204 words, it makes the kernel MIPS16-tolerant.
2206 config CPU_SUPPORTS_MSA
2209 config ARCH_FLATMEM_ENABLE
2211 depends on !NUMA && !CPU_LOONGSON2
2213 config ARCH_DISCONTIGMEM_ENABLE
2215 default y if SGI_IP27
2217 Say Y to support efficient handling of discontiguous physical memory,
2218 for architectures which are either NUMA (Non-Uniform Memory Access)
2219 or have huge holes in the physical address space for other reasons.
2220 See <file:Documentation/vm/numa> for more.
2222 config ARCH_SPARSEMEM_ENABLE
2224 select SPARSEMEM_STATIC
2228 depends on SYS_SUPPORTS_NUMA
2230 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2231 Access). This option improves performance on systems with more
2232 than two nodes; on two node systems it is generally better to
2233 leave it disabled; on single node systems disable this option
2236 config SYS_SUPPORTS_NUMA
2242 depends on NEED_MULTIPLE_NODES
2244 config HW_PERF_EVENTS
2245 bool "Enable hardware performance counter support for perf events"
2246 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2249 Enable hardware performance counter support for perf events. If
2250 disabled, perf events will use software events only.
2255 bool "Multi-Processing support"
2256 depends on SYS_SUPPORTS_SMP
2258 This enables support for systems with more than one CPU. If you have
2259 a system with only one CPU, say N. If you have a system with more
2260 than one CPU, say Y.
2262 If you say N here, the kernel will run on uni- and multiprocessor
2263 machines, but will use only one CPU of a multiprocessor machine. If
2264 you say Y here, the kernel will run on many, but not all,
2265 uniprocessor machines. On a uniprocessor machine, the kernel
2266 will run faster if you say N here.
2268 People using multiprocessor machines who say Y here should also say
2269 Y to "Enhanced Real Time Clock Support", below.
2271 See also the SMP-HOWTO available at
2272 <http://www.tldp.org/docs.html#howto>.
2274 If you don't know what to do here, say N.
2279 config SYS_SUPPORTS_MIPS_CMP
2282 config SYS_SUPPORTS_MIPS_CPS
2285 config SYS_SUPPORTS_SMP
2288 config NR_CPUS_DEFAULT_4
2291 config NR_CPUS_DEFAULT_8
2294 config NR_CPUS_DEFAULT_16
2297 config NR_CPUS_DEFAULT_32
2300 config NR_CPUS_DEFAULT_64
2304 int "Maximum number of CPUs (2-256)"
2307 default "4" if NR_CPUS_DEFAULT_4
2308 default "8" if NR_CPUS_DEFAULT_8
2309 default "16" if NR_CPUS_DEFAULT_16
2310 default "32" if NR_CPUS_DEFAULT_32
2311 default "64" if NR_CPUS_DEFAULT_64
2313 This allows you to specify the maximum number of CPUs which this
2314 kernel will support. The maximum supported value is 32 for 32-bit
2315 kernel and 64 for 64-bit kernels; the minimum value which makes
2316 sense is 1 for Qemu (useful only for kernel debugging purposes)
2317 and 2 for all others.
2319 This is purely to save memory - each supported CPU adds
2320 approximately eight kilobytes to the kernel image. For best
2321 performance should round up your number of processors to the next
2324 config MIPS_PERF_SHARED_TC_COUNTERS
2328 # Timer Interrupt Frequency Configuration
2332 prompt "Timer frequency"
2335 Allows the configuration of the timer frequency.
2338 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2341 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2344 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2347 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2350 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2353 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2356 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2360 config SYS_SUPPORTS_48HZ
2363 config SYS_SUPPORTS_100HZ
2366 config SYS_SUPPORTS_128HZ
2369 config SYS_SUPPORTS_250HZ
2372 config SYS_SUPPORTS_256HZ
2375 config SYS_SUPPORTS_1000HZ
2378 config SYS_SUPPORTS_1024HZ
2381 config SYS_SUPPORTS_ARBIT_HZ
2383 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2384 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2385 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2386 !SYS_SUPPORTS_1024HZ
2391 default 100 if HZ_100
2392 default 128 if HZ_128
2393 default 250 if HZ_250
2394 default 256 if HZ_256
2395 default 1000 if HZ_1000
2396 default 1024 if HZ_1024
2398 source "kernel/Kconfig.preempt"
2401 bool "Kexec system call"
2403 kexec is a system call that implements the ability to shutdown your
2404 current kernel, and to start another kernel. It is like a reboot
2405 but it is independent of the system firmware. And like a reboot
2406 you can start any kernel with it, not just Linux.
2408 The name comes from the similarity to the exec system call.
2410 It is an ongoing process to be certain the hardware in a machine
2411 is properly shutdown, so do not be surprised if this code does not
2412 initially work for you. As of this writing the exact hardware
2413 interface is strongly in flux, so no good recommendation can be
2417 bool "Kernel crash dumps"
2419 Generate crash dump after being started by kexec.
2420 This should be normally only set in special crash dump kernels
2421 which are loaded in the main kernel with kexec-tools into
2422 a specially reserved region and then later executed after
2423 a crash by kdump/kexec. The crash dump kernel must be compiled
2424 to a memory address not used by the main kernel or firmware using
2427 config PHYSICAL_START
2428 hex "Physical address where the kernel is loaded"
2429 default "0xffffffff84000000" if 64BIT
2430 default "0x84000000" if 32BIT
2431 depends on CRASH_DUMP
2433 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2434 If you plan to use kernel for capturing the crash dump change
2435 this value to start of the reserved region (the "X" value as
2436 specified in the "crashkernel=YM@XM" command line boot parameter
2437 passed to the panic-ed kernel).
2440 bool "Enable seccomp to safely compute untrusted bytecode"
2444 This kernel feature is useful for number crunching applications
2445 that may need to compute untrusted bytecode during their
2446 execution. By using pipes or other transports made available to
2447 the process as file descriptors supporting the read/write
2448 syscalls, it's possible to isolate those applications in
2449 their own address space using seccomp. Once seccomp is
2450 enabled via /proc/<pid>/seccomp, it cannot be disabled
2451 and the task is only allowed to execute a few safe syscalls
2452 defined by each seccomp mode.
2454 If unsure, say Y. Only embedded should say N here.
2456 config MIPS_O32_FP64_SUPPORT
2457 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2458 depends on 32BIT || MIPS32_O32
2460 When this is enabled, the kernel will support use of 64-bit floating
2461 point registers with binaries using the O32 ABI along with the
2462 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2463 32-bit MIPS systems this support is at the cost of increasing the
2464 size and complexity of the compiled FPU emulator. Thus if you are
2465 running a MIPS32 system and know that none of your userland binaries
2466 will require 64-bit floating point, you may wish to reduce the size
2467 of your kernel & potentially improve FP emulation performance by
2470 Although binutils currently supports use of this flag the details
2471 concerning its effect upon the O32 ABI in userland are still being
2472 worked on. In order to avoid userland becoming dependant upon current
2473 behaviour before the details have been finalised, this option should
2474 be considered experimental and only enabled by those working upon
2482 select OF_EARLY_FLATTREE
2487 config LOCKDEP_SUPPORT
2491 config STACKTRACE_SUPPORT
2495 source "init/Kconfig"
2497 source "kernel/Kconfig.freezer"
2499 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2507 bool "Support for PCI controller"
2508 depends on HW_HAS_PCI
2510 select NO_GENERIC_PCI_IOPORT_MAP
2512 Find out whether you have a PCI motherboard. PCI is the name of a
2513 bus system, i.e. the way the CPU talks to the other stuff inside
2514 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2518 bool "Support for HT-linked PCI"
2520 depends on CPU_LOONGSON3
2524 Loongson family machines use Hyper-Transport bus for inter-core
2525 connection and device connection. The PCI bus is a subordinate
2526 linked at HT. Choose Y for Loongson-3 based machines.
2531 source "drivers/pci/Kconfig"
2533 source "drivers/pci/pcie/Kconfig"
2536 # ISA support is now enabled via select. Too many systems still have the one
2537 # or other ISA chip on the board that users don't know about so don't expect
2538 # users to choose the right thing ...
2545 depends on HW_HAS_EISA
2547 select GENERIC_ISA_DMA
2549 The Extended Industry Standard Architecture (EISA) bus was
2550 developed as an open alternative to the IBM MicroChannel bus.
2552 The EISA bus provided some of the features of the IBM MicroChannel
2553 bus while maintaining backward compatibility with cards made for
2554 the older ISA bus. The EISA bus saw limited use between 1988 and
2555 1995 when it was made obsolete by the PCI bus.
2557 Say Y here if you are building a kernel for an EISA-based machine.
2561 source "drivers/eisa/Kconfig"
2564 bool "TURBOchannel support"
2565 depends on MACH_DECSTATION
2567 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2568 processors. TURBOchannel programming specifications are available
2570 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2572 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2573 Linux driver support status is documented at:
2574 <http://www.linux-mips.org/wiki/DECstation>
2584 select MIPS_EXTERNAL_TIMER
2592 source "drivers/pcmcia/Kconfig"
2594 source "drivers/pci/hotplug/Kconfig"
2597 tristate "RapidIO support"
2601 If you say Y here, the kernel will include drivers and
2602 infrastructure code to support RapidIO interconnect devices.
2604 source "drivers/rapidio/Kconfig"
2608 menu "Executable file formats"
2610 source "fs/Kconfig.binfmt"
2615 config MIPS32_COMPAT
2616 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2619 Select this option if you want Linux/MIPS 32-bit binary
2620 compatibility. Since all software available for Linux/MIPS is
2621 currently 32-bit you should say Y here.
2625 depends on MIPS32_COMPAT
2626 select ARCH_WANT_OLD_COMPAT_IPC
2629 config SYSVIPC_COMPAT
2631 depends on COMPAT && SYSVIPC
2635 bool "Kernel support for o32 binaries"
2636 depends on MIPS32_COMPAT
2638 Select this option if you want to run o32 binaries. These are pure
2639 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2640 existing binaries are in this format.
2645 bool "Kernel support for n32 binaries"
2646 depends on MIPS32_COMPAT
2648 Select this option if you want to run n32 binaries. These are
2649 64-bit binaries using 32-bit quantities for addressing and certain
2650 data that would normally be 64-bit. They are used in special
2657 default y if MIPS32_O32 || MIPS32_N32
2661 menu "Power management options"
2663 config ARCH_HIBERNATION_POSSIBLE
2665 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2667 config ARCH_SUSPEND_POSSIBLE
2669 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2671 source "kernel/power/Kconfig"
2675 config MIPS_EXTERNAL_TIMER
2678 menu "CPU Power Management"
2680 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2681 source "drivers/cpufreq/Kconfig"
2684 source "drivers/cpuidle/Kconfig"
2688 source "net/Kconfig"
2690 source "drivers/Kconfig"
2692 source "drivers/firmware/Kconfig"
2696 source "arch/mips/Kconfig.debug"
2698 source "security/Kconfig"
2700 source "crypto/Kconfig"
2702 source "lib/Kconfig"
2704 source "arch/mips/kvm/Kconfig"