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
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 Support for BCM47XX based boards
137 bool "Broadcom BCM63XX based boards"
141 select DMA_NONCOHERENT
143 select SYS_SUPPORTS_32BIT_KERNEL
144 select SYS_SUPPORTS_BIG_ENDIAN
145 select SYS_HAS_EARLY_PRINTK
147 select ARCH_REQUIRE_GPIOLIB
149 select MIPS_L1_CACHE_SHIFT_4
151 Support for BCM63XX based boards
158 select DMA_NONCOHERENT
164 select PCI_GT64XXX_PCI0
166 select SYS_HAS_CPU_NEVADA
167 select SYS_HAS_EARLY_PRINTK
168 select SYS_SUPPORTS_32BIT_KERNEL
169 select SYS_SUPPORTS_64BIT_KERNEL
170 select SYS_SUPPORTS_LITTLE_ENDIAN
171 select USE_GENERIC_EARLY_PRINTK_8250
173 config MACH_DECSTATION
177 select CEVT_R4K if CPU_R4X00
179 select CSRC_R4K if CPU_R4X00
180 select CPU_DADDI_WORKAROUNDS if 64BIT
181 select CPU_R4000_WORKAROUNDS if 64BIT
182 select CPU_R4400_WORKAROUNDS if 64BIT
183 select DMA_NONCOHERENT
186 select SYS_HAS_CPU_R3000
187 select SYS_HAS_CPU_R4X00
188 select SYS_SUPPORTS_32BIT_KERNEL
189 select SYS_SUPPORTS_64BIT_KERNEL
190 select SYS_SUPPORTS_LITTLE_ENDIAN
191 select SYS_SUPPORTS_128HZ
192 select SYS_SUPPORTS_256HZ
193 select SYS_SUPPORTS_1024HZ
194 select MIPS_L1_CACHE_SHIFT_4
196 This enables support for DEC's MIPS based workstations. For details
197 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
198 DECstation porting pages on <http://decstation.unix-ag.org/>.
200 If you have one of the following DECstation Models you definitely
201 want to choose R4xx0 for the CPU Type:
208 otherwise choose R3000.
211 bool "Jazz family of machines"
214 select ARCH_MAY_HAVE_PC_FDC
217 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
218 select GENERIC_ISA_DMA
219 select HAVE_PCSPKR_PLATFORM
224 select SYS_HAS_CPU_R4X00
225 select SYS_SUPPORTS_32BIT_KERNEL
226 select SYS_SUPPORTS_64BIT_KERNEL
227 select SYS_SUPPORTS_100HZ
229 This a family of machines based on the MIPS R4030 chipset which was
230 used by several vendors to build RISC/os and Windows NT workstations.
231 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
232 Olivetti M700-10 workstations.
235 bool "Ingenic JZ4740 based machines"
236 select SYS_HAS_CPU_MIPS32_R1
237 select SYS_SUPPORTS_32BIT_KERNEL
238 select SYS_SUPPORTS_LITTLE_ENDIAN
239 select SYS_SUPPORTS_ZBOOT_UART16550
240 select DMA_NONCOHERENT
242 select ARCH_REQUIRE_GPIOLIB
243 select SYS_HAS_EARLY_PRINTK
245 select GENERIC_IRQ_CHIP
248 bool "Lantiq based platforms"
249 select DMA_NONCOHERENT
253 select SYS_HAS_CPU_MIPS32_R1
254 select SYS_HAS_CPU_MIPS32_R2
255 select SYS_SUPPORTS_BIG_ENDIAN
256 select SYS_SUPPORTS_32BIT_KERNEL
257 select SYS_SUPPORTS_MIPS16
258 select SYS_SUPPORTS_MULTITHREADING
259 select SYS_HAS_EARLY_PRINTK
260 select ARCH_REQUIRE_GPIOLIB
263 select HAVE_MACH_CLKDEV
267 select PINCTRL_LANTIQ
270 bool "LASAT Networks platforms"
274 select DMA_NONCOHERENT
275 select SYS_HAS_EARLY_PRINTK
278 select PCI_GT64XXX_PCI0
280 select R5000_CPU_SCACHE
281 select SYS_HAS_CPU_R5000
282 select SYS_SUPPORTS_32BIT_KERNEL
283 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
284 select SYS_SUPPORTS_LITTLE_ENDIAN
287 bool "Loongson family of machines"
288 select SYS_SUPPORTS_ZBOOT
290 This enables the support of Loongson family of machines.
292 Loongson is a family of general-purpose MIPS-compatible CPUs.
293 developed at Institute of Computing Technology (ICT),
294 Chinese Academy of Sciences (CAS) in the People's Republic
295 of China. The chief architect is Professor Weiwu Hu.
297 config MACH_LOONGSON1
298 bool "Loongson 1 family of machines"
299 select SYS_SUPPORTS_ZBOOT
301 This enables support for the Loongson 1 based machines.
303 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
304 the ICT (Institute of Computing Technology) and the Chinese Academy
308 bool "MIPS Malta board"
309 select ARCH_MAY_HAVE_PC_FDC
315 select DMA_MAYBE_COHERENT
316 select GENERIC_ISA_DMA
317 select HAVE_PCSPKR_PLATFORM
324 select MIPS_CPU_SCACHE
325 select PCI_GT64XXX_PCI0
328 select SYS_HAS_CPU_MIPS32_R1
329 select SYS_HAS_CPU_MIPS32_R2
330 select SYS_HAS_CPU_MIPS32_R3_5
331 select SYS_HAS_CPU_MIPS64_R1
332 select SYS_HAS_CPU_MIPS64_R2
333 select SYS_HAS_CPU_NEVADA
334 select SYS_HAS_CPU_RM7000
335 select SYS_SUPPORTS_32BIT_KERNEL
336 select SYS_SUPPORTS_64BIT_KERNEL
337 select SYS_SUPPORTS_BIG_ENDIAN
338 select SYS_SUPPORTS_LITTLE_ENDIAN
339 select SYS_SUPPORTS_MIPS_CMP
340 select SYS_SUPPORTS_MIPS_CPS
341 select SYS_SUPPORTS_MIPS16
342 select SYS_SUPPORTS_MULTITHREADING
343 select SYS_SUPPORTS_SMARTMIPS
344 select SYS_SUPPORTS_ZBOOT
346 This enables support for the MIPS Technologies Malta evaluation
350 bool "MIPS SEAD3 board"
356 select CPU_MIPSR2_IRQ_VI
357 select CPU_MIPSR2_IRQ_EI
358 select DMA_NONCOHERENT
363 select SYS_HAS_CPU_MIPS32_R1
364 select SYS_HAS_CPU_MIPS32_R2
365 select SYS_HAS_CPU_MIPS64_R1
366 select SYS_HAS_EARLY_PRINTK
367 select SYS_SUPPORTS_32BIT_KERNEL
368 select SYS_SUPPORTS_64BIT_KERNEL
369 select SYS_SUPPORTS_BIG_ENDIAN
370 select SYS_SUPPORTS_LITTLE_ENDIAN
371 select SYS_SUPPORTS_SMARTMIPS
372 select SYS_SUPPORTS_MICROMIPS
373 select SYS_SUPPORTS_MIPS16
374 select USB_EHCI_BIG_ENDIAN_DESC
375 select USB_EHCI_BIG_ENDIAN_MMIO
378 This enables support for the MIPS Technologies SEAD3 evaluation
382 bool "NEC EMMA2RH Mark-eins board"
386 This enables support for the NEC Electronics Mark-eins boards.
389 bool "NEC VR4100 series based machines"
392 select SYS_HAS_CPU_VR41XX
393 select SYS_SUPPORTS_MIPS16
394 select ARCH_REQUIRE_GPIOLIB
397 bool "NXP STB220 board"
400 Support for NXP Semiconductors STB220 Development Board.
407 Support for NXP Semiconductors STB225 Development Board.
410 bool "PMC-Sierra MSP chipsets"
413 select DMA_NONCOHERENT
415 select NO_EXCEPT_FILL
417 select SYS_HAS_CPU_MIPS32_R1
418 select SYS_HAS_CPU_MIPS32_R2
419 select SYS_SUPPORTS_32BIT_KERNEL
420 select SYS_SUPPORTS_BIG_ENDIAN
421 select SYS_SUPPORTS_MIPS16
424 select SERIAL_8250_CONSOLE
425 select USB_EHCI_BIG_ENDIAN_MMIO
426 select USB_EHCI_BIG_ENDIAN_DESC
428 This adds support for the PMC-Sierra family of Multi-Service
429 Processor System-On-A-Chips. These parts include a number
430 of integrated peripherals, interfaces and DSPs in addition to
431 a variety of MIPS cores.
434 bool "Ralink based machines"
438 select DMA_NONCOHERENT
441 select SYS_HAS_CPU_MIPS32_R1
442 select SYS_HAS_CPU_MIPS32_R2
443 select SYS_SUPPORTS_32BIT_KERNEL
444 select SYS_SUPPORTS_LITTLE_ENDIAN
445 select SYS_SUPPORTS_MIPS16
446 select SYS_HAS_EARLY_PRINTK
447 select HAVE_MACH_CLKDEV
449 select ARCH_HAS_RESET_CONTROLLER
450 select RESET_CONTROLLER
453 bool "SGI IP22 (Indy/Indigo2)"
459 select DEFAULT_SGI_PARTITION
460 select DMA_NONCOHERENT
464 select IP22_CPU_SCACHE
466 select GENERIC_ISA_DMA_SUPPORT_BROKEN
468 select SGI_HAS_INDYDOG
474 select SYS_HAS_CPU_R4X00
475 select SYS_HAS_CPU_R5000
477 # Disable EARLY_PRINTK for now since it leads to overwritten prom
478 # memory during early boot on some machines.
480 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
481 # for a more details discussion
483 # select SYS_HAS_EARLY_PRINTK
484 select SYS_SUPPORTS_32BIT_KERNEL
485 select SYS_SUPPORTS_64BIT_KERNEL
486 select SYS_SUPPORTS_BIG_ENDIAN
487 select MIPS_L1_CACHE_SHIFT_7
489 This are the SGI Indy, Challenge S and Indigo2, as well as certain
490 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
491 that runs on these, say Y here.
494 bool "SGI IP27 (Origin200/2000)"
498 select DEFAULT_SGI_PARTITION
500 select SYS_HAS_EARLY_PRINTK
502 select NR_CPUS_DEFAULT_64
503 select SYS_HAS_CPU_R10000
504 select SYS_SUPPORTS_64BIT_KERNEL
505 select SYS_SUPPORTS_BIG_ENDIAN
506 select SYS_SUPPORTS_NUMA
507 select SYS_SUPPORTS_SMP
508 select MIPS_L1_CACHE_SHIFT_7
510 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
511 workstations. To compile a Linux kernel that runs on these, say Y
515 bool "SGI IP28 (Indigo2 R10k)"
521 select DEFAULT_SGI_PARTITION
522 select DMA_NONCOHERENT
523 select GENERIC_ISA_DMA_SUPPORT_BROKEN
529 select SGI_HAS_INDYDOG
535 select SYS_HAS_CPU_R10000
537 # Disable EARLY_PRINTK for now since it leads to overwritten prom
538 # memory during early boot on some machines.
540 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
541 # for a more details discussion
543 # select SYS_HAS_EARLY_PRINTK
544 select SYS_SUPPORTS_64BIT_KERNEL
545 select SYS_SUPPORTS_BIG_ENDIAN
547 This is the SGI Indigo2 with R10000 processor. To compile a Linux
548 kernel that runs on these, say Y here.
557 select DMA_NONCOHERENT
560 select R5000_CPU_SCACHE
561 select RM7000_CPU_SCACHE
562 select SYS_HAS_CPU_R5000
563 select SYS_HAS_CPU_R10000 if BROKEN
564 select SYS_HAS_CPU_RM7000
565 select SYS_HAS_CPU_NEVADA
566 select SYS_SUPPORTS_64BIT_KERNEL
567 select SYS_SUPPORTS_BIG_ENDIAN
569 If you want this kernel to run on SGI O2 workstation, say Y here.
572 bool "Sibyte BCM91120C-CRhine"
575 select SIBYTE_BCM1120
577 select SYS_HAS_CPU_SB1
578 select SYS_SUPPORTS_BIG_ENDIAN
579 select SYS_SUPPORTS_LITTLE_ENDIAN
582 bool "Sibyte BCM91120x-Carmel"
585 select SIBYTE_BCM1120
587 select SYS_HAS_CPU_SB1
588 select SYS_SUPPORTS_BIG_ENDIAN
589 select SYS_SUPPORTS_LITTLE_ENDIAN
592 bool "Sibyte BCM91125C-CRhone"
595 select SIBYTE_BCM1125
597 select SYS_HAS_CPU_SB1
598 select SYS_SUPPORTS_BIG_ENDIAN
599 select SYS_SUPPORTS_HIGHMEM
600 select SYS_SUPPORTS_LITTLE_ENDIAN
603 bool "Sibyte BCM91125E-Rhone"
606 select SIBYTE_BCM1125H
608 select SYS_HAS_CPU_SB1
609 select SYS_SUPPORTS_BIG_ENDIAN
610 select SYS_SUPPORTS_LITTLE_ENDIAN
613 bool "Sibyte BCM91250A-SWARM"
616 select HAVE_PATA_PLATFORM
619 select SYS_HAS_CPU_SB1
620 select SYS_SUPPORTS_BIG_ENDIAN
621 select SYS_SUPPORTS_HIGHMEM
622 select SYS_SUPPORTS_LITTLE_ENDIAN
623 select ZONE_DMA32 if 64BIT
625 config SIBYTE_LITTLESUR
626 bool "Sibyte BCM91250C2-LittleSur"
629 select HAVE_PATA_PLATFORM
632 select SYS_HAS_CPU_SB1
633 select SYS_SUPPORTS_BIG_ENDIAN
634 select SYS_SUPPORTS_HIGHMEM
635 select SYS_SUPPORTS_LITTLE_ENDIAN
637 config SIBYTE_SENTOSA
638 bool "Sibyte BCM91250E-Sentosa"
643 select SYS_HAS_CPU_SB1
644 select SYS_SUPPORTS_BIG_ENDIAN
645 select SYS_SUPPORTS_LITTLE_ENDIAN
648 bool "Sibyte BCM91480B-BigSur"
651 select NR_CPUS_DEFAULT_4
652 select SIBYTE_BCM1x80
654 select SYS_HAS_CPU_SB1
655 select SYS_SUPPORTS_BIG_ENDIAN
656 select SYS_SUPPORTS_HIGHMEM
657 select SYS_SUPPORTS_LITTLE_ENDIAN
658 select ZONE_DMA32 if 64BIT
661 bool "SNI RM200/300/400"
662 select FW_ARC if CPU_LITTLE_ENDIAN
663 select FW_ARC32 if CPU_LITTLE_ENDIAN
664 select FW_SNIPROM if CPU_BIG_ENDIAN
665 select ARCH_MAY_HAVE_PC_FDC
669 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
670 select DMA_NONCOHERENT
671 select GENERIC_ISA_DMA
672 select HAVE_PCSPKR_PLATFORM
679 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
680 select SYS_HAS_CPU_R4X00
681 select SYS_HAS_CPU_R5000
682 select SYS_HAS_CPU_R10000
683 select R5000_CPU_SCACHE
684 select SYS_HAS_EARLY_PRINTK
685 select SYS_SUPPORTS_32BIT_KERNEL
686 select SYS_SUPPORTS_64BIT_KERNEL
687 select SYS_SUPPORTS_BIG_ENDIAN
688 select SYS_SUPPORTS_HIGHMEM
689 select SYS_SUPPORTS_LITTLE_ENDIAN
691 The SNI RM200/300/400 are MIPS-based machines manufactured by
692 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
693 Technology and now in turn merged with Fujitsu. Say Y here to
694 support this machine type.
697 bool "Toshiba TX39 series based machines"
700 bool "Toshiba TX49 series based machines"
702 config MIKROTIK_RB532
703 bool "Mikrotik RB532 boards"
706 select DMA_NONCOHERENT
709 select SYS_HAS_CPU_MIPS32_R1
710 select SYS_SUPPORTS_32BIT_KERNEL
711 select SYS_SUPPORTS_LITTLE_ENDIAN
714 select ARCH_REQUIRE_GPIOLIB
715 select MIPS_L1_CACHE_SHIFT_4
717 Support the Mikrotik(tm) RouterBoard 532 series,
718 based on the IDT RC32434 SoC.
720 config CAVIUM_OCTEON_SOC
721 bool "Cavium Networks Octeon SoC based boards"
723 select 64BIT_PHYS_ADDR
725 select SYS_SUPPORTS_64BIT_KERNEL
726 select SYS_SUPPORTS_BIG_ENDIAN
728 select SYS_SUPPORTS_HOTPLUG_CPU
729 select SYS_HAS_EARLY_PRINTK
730 select SYS_HAS_CPU_CAVIUM_OCTEON
735 select ARCH_REQUIRE_GPIOLIB
738 select ARCH_SPARSEMEM_ENABLE
739 select SYS_SUPPORTS_SMP
740 select NR_CPUS_DEFAULT_16
742 This option supports all of the Octeon reference boards from Cavium
743 Networks. It builds a kernel that dynamically determines the Octeon
744 CPU type and supports all known board reference implementations.
745 Some of the supported boards are:
752 Say Y here for most Octeon reference boards.
755 bool "Netlogic XLR/XLS based systems"
758 select SYS_HAS_CPU_XLR
759 select SYS_SUPPORTS_SMP
762 select SYS_SUPPORTS_32BIT_KERNEL
763 select SYS_SUPPORTS_64BIT_KERNEL
764 select 64BIT_PHYS_ADDR
765 select SYS_SUPPORTS_BIG_ENDIAN
766 select SYS_SUPPORTS_HIGHMEM
768 select NR_CPUS_DEFAULT_32
772 select ZONE_DMA32 if 64BIT
774 select SYS_HAS_EARLY_PRINTK
775 select SYS_SUPPORTS_ZBOOT
776 select SYS_SUPPORTS_ZBOOT_UART16550
778 Support for systems based on Netlogic XLR and XLS processors.
779 Say Y here if you have a XLR or XLS based board.
782 bool "Netlogic XLP based systems"
785 select SYS_HAS_CPU_XLP
786 select SYS_SUPPORTS_SMP
788 select SYS_SUPPORTS_32BIT_KERNEL
789 select SYS_SUPPORTS_64BIT_KERNEL
790 select 64BIT_PHYS_ADDR
791 select SYS_SUPPORTS_BIG_ENDIAN
792 select SYS_SUPPORTS_LITTLE_ENDIAN
793 select SYS_SUPPORTS_HIGHMEM
795 select NR_CPUS_DEFAULT_32
799 select ZONE_DMA32 if 64BIT
801 select SYS_HAS_EARLY_PRINTK
803 select SYS_SUPPORTS_ZBOOT
804 select SYS_SUPPORTS_ZBOOT_UART16550
806 This board is based on Netlogic XLP Processor.
807 Say Y here if you have a XLP based board.
810 bool "Para-Virtualized guest system"
814 select SYS_SUPPORTS_64BIT_KERNEL
815 select SYS_SUPPORTS_32BIT_KERNEL
816 select SYS_SUPPORTS_BIG_ENDIAN
817 select SYS_SUPPORTS_SMP
818 select NR_CPUS_DEFAULT_4
819 select SYS_HAS_EARLY_PRINTK
820 select SYS_HAS_CPU_MIPS32_R2
821 select SYS_HAS_CPU_MIPS64_R2
822 select SYS_HAS_CPU_CAVIUM_OCTEON
826 This option supports guest running under ????
830 source "arch/mips/alchemy/Kconfig"
831 source "arch/mips/ath79/Kconfig"
832 source "arch/mips/bcm47xx/Kconfig"
833 source "arch/mips/bcm63xx/Kconfig"
834 source "arch/mips/jazz/Kconfig"
835 source "arch/mips/jz4740/Kconfig"
836 source "arch/mips/lantiq/Kconfig"
837 source "arch/mips/lasat/Kconfig"
838 source "arch/mips/pmcs-msp71xx/Kconfig"
839 source "arch/mips/ralink/Kconfig"
840 source "arch/mips/sgi-ip27/Kconfig"
841 source "arch/mips/sibyte/Kconfig"
842 source "arch/mips/txx9/Kconfig"
843 source "arch/mips/vr41xx/Kconfig"
844 source "arch/mips/cavium-octeon/Kconfig"
845 source "arch/mips/loongson/Kconfig"
846 source "arch/mips/loongson1/Kconfig"
847 source "arch/mips/netlogic/Kconfig"
848 source "arch/mips/paravirt/Kconfig"
852 config RWSEM_GENERIC_SPINLOCK
856 config RWSEM_XCHGADD_ALGORITHM
859 config ARCH_HAS_ILOG2_U32
863 config ARCH_HAS_ILOG2_U64
867 config GENERIC_HWEIGHT
871 config GENERIC_CALIBRATE_DELAY
875 config SCHED_OMIT_FRAME_POINTER
880 # Select some configuration options automatically based on user selections.
885 config ARCH_MAY_HAVE_PC_FDC
930 select ARCH_REQUIRE_GPIOLIB
936 config ARCH_DMA_ADDR_T_64BIT
937 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
939 config DMA_MAYBE_COHERENT
940 select DMA_NONCOHERENT
946 config DMA_NONCOHERENT
948 select NEED_DMA_MAP_STATE
950 config NEED_DMA_MAP_STATE
953 config SYS_HAS_EARLY_PRINTK
957 bool "Support for hot-pluggable CPUs"
958 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
960 Say Y here to allow turning CPUs off and on. CPUs can be
961 controlled through /sys/devices/system/cpu.
962 (Note: power management support will enable this option
963 automatically on SMP systems. )
964 Say N if you want to disable CPU hotplug.
966 config SYS_SUPPORTS_HOTPLUG_CPU
990 config GENERIC_ISA_DMA
992 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
995 config GENERIC_ISA_DMA_SUPPORT_BROKEN
997 select GENERIC_ISA_DMA
1002 config HOLES_IN_ZONE
1006 # Endianness selection. Sufficiently obscure so many users don't know what to
1007 # answer,so we try hard to limit the available choices. Also the use of a
1008 # choice statement should be more obvious to the user.
1011 prompt "Endianness selection"
1013 Some MIPS machines can be configured for either little or big endian
1014 byte order. These modes require different kernels and a different
1015 Linux distribution. In general there is one preferred byteorder for a
1016 particular system but some systems are just as commonly used in the
1017 one or the other endianness.
1019 config CPU_BIG_ENDIAN
1021 depends on SYS_SUPPORTS_BIG_ENDIAN
1023 config CPU_LITTLE_ENDIAN
1024 bool "Little endian"
1025 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1032 config SYS_SUPPORTS_APM_EMULATION
1035 config SYS_SUPPORTS_BIG_ENDIAN
1038 config SYS_SUPPORTS_LITTLE_ENDIAN
1041 config SYS_SUPPORTS_HUGETLBFS
1043 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1046 config MIPS_HUGE_TLB_SUPPORT
1047 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1071 config PCI_GT64XXX_PCI0
1074 config NO_EXCEPT_FILL
1081 select DMA_NONCOHERENT
1083 select SWAP_IO_SPACE
1084 select SYS_HAS_CPU_R5500
1085 select SYS_SUPPORTS_32BIT_KERNEL
1086 select SYS_SUPPORTS_64BIT_KERNEL
1087 select SYS_SUPPORTS_BIG_ENDIAN
1094 select DMA_NONCOHERENT
1095 select SYS_HAS_CPU_MIPS32_R2
1096 select SYS_SUPPORTS_32BIT_KERNEL
1097 select SYS_SUPPORTS_LITTLE_ENDIAN
1098 select SYS_SUPPORTS_BIG_ENDIAN
1099 select SYS_SUPPORTS_MIPS16
1100 select CPU_MIPSR2_IRQ_VI
1106 config SWAP_IO_SPACE
1109 config SGI_HAS_INDYDOG
1121 config SGI_HAS_ZILOG
1124 config SGI_HAS_I8042
1127 config DEFAULT_SGI_PARTITION
1139 config MIPS_L1_CACHE_SHIFT_4
1142 config MIPS_L1_CACHE_SHIFT_5
1145 config MIPS_L1_CACHE_SHIFT_6
1148 config MIPS_L1_CACHE_SHIFT_7
1151 config MIPS_L1_CACHE_SHIFT
1153 default "4" if MIPS_L1_CACHE_SHIFT_4
1154 default "5" if MIPS_L1_CACHE_SHIFT_5
1155 default "6" if MIPS_L1_CACHE_SHIFT_6
1156 default "7" if MIPS_L1_CACHE_SHIFT_7
1159 config HAVE_STD_PC_SERIAL_PORT
1163 bool "ARC console support"
1164 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1168 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1173 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1182 menu "CPU selection"
1188 config CPU_LOONGSON3
1189 bool "Loongson 3 CPU"
1190 depends on SYS_HAS_CPU_LOONGSON3
1191 select CPU_SUPPORTS_64BIT_KERNEL
1192 select CPU_SUPPORTS_HIGHMEM
1193 select CPU_SUPPORTS_HUGEPAGES
1194 select WEAK_ORDERING
1195 select WEAK_REORDERING_BEYOND_LLSC
1197 The Loongson 3 processor implements the MIPS64R2 instruction
1198 set with many extensions.
1200 config CPU_LOONGSON2E
1202 depends on SYS_HAS_CPU_LOONGSON2E
1203 select CPU_LOONGSON2
1205 The Loongson 2E processor implements the MIPS III instruction set
1206 with many extensions.
1208 It has an internal FPGA northbridge, which is compatible to
1211 config CPU_LOONGSON2F
1213 depends on SYS_HAS_CPU_LOONGSON2F
1214 select CPU_LOONGSON2
1215 select ARCH_REQUIRE_GPIOLIB
1217 The Loongson 2F processor implements the MIPS III instruction set
1218 with many extensions.
1220 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1221 have a similar programming interface with FPGA northbridge used in
1224 config CPU_LOONGSON1B
1226 depends on SYS_HAS_CPU_LOONGSON1B
1227 select CPU_LOONGSON1
1229 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1230 release 2 instruction set.
1232 config CPU_MIPS32_R1
1233 bool "MIPS32 Release 1"
1234 depends on SYS_HAS_CPU_MIPS32_R1
1235 select CPU_HAS_PREFETCH
1236 select CPU_SUPPORTS_32BIT_KERNEL
1237 select CPU_SUPPORTS_HIGHMEM
1239 Choose this option to build a kernel for release 1 or later of the
1240 MIPS32 architecture. Most modern embedded systems with a 32-bit
1241 MIPS processor are based on a MIPS32 processor. If you know the
1242 specific type of processor in your system, choose those that one
1243 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1244 Release 2 of the MIPS32 architecture is available since several
1245 years so chances are you even have a MIPS32 Release 2 processor
1246 in which case you should choose CPU_MIPS32_R2 instead for better
1249 config CPU_MIPS32_R2
1250 bool "MIPS32 Release 2"
1251 depends on SYS_HAS_CPU_MIPS32_R2
1252 select CPU_HAS_PREFETCH
1253 select CPU_SUPPORTS_32BIT_KERNEL
1254 select CPU_SUPPORTS_HIGHMEM
1255 select CPU_SUPPORTS_MSA
1258 Choose this option to build a kernel for release 2 or later of the
1259 MIPS32 architecture. Most modern embedded systems with a 32-bit
1260 MIPS processor are based on a MIPS32 processor. If you know the
1261 specific type of processor in your system, choose those that one
1262 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1264 config CPU_MIPS64_R1
1265 bool "MIPS64 Release 1"
1266 depends on SYS_HAS_CPU_MIPS64_R1
1267 select CPU_HAS_PREFETCH
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_64BIT_KERNEL
1270 select CPU_SUPPORTS_HIGHMEM
1271 select CPU_SUPPORTS_HUGEPAGES
1273 Choose this option to build a kernel for release 1 or later of the
1274 MIPS64 architecture. Many modern embedded systems with a 64-bit
1275 MIPS processor are based on a MIPS64 processor. If you know the
1276 specific type of processor in your system, choose those that one
1277 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1278 Release 2 of the MIPS64 architecture is available since several
1279 years so chances are you even have a MIPS64 Release 2 processor
1280 in which case you should choose CPU_MIPS64_R2 instead for better
1283 config CPU_MIPS64_R2
1284 bool "MIPS64 Release 2"
1285 depends on SYS_HAS_CPU_MIPS64_R2
1286 select CPU_HAS_PREFETCH
1287 select CPU_SUPPORTS_32BIT_KERNEL
1288 select CPU_SUPPORTS_64BIT_KERNEL
1289 select CPU_SUPPORTS_HIGHMEM
1290 select CPU_SUPPORTS_HUGEPAGES
1291 select CPU_SUPPORTS_MSA
1293 Choose this option to build a kernel for release 2 or later of the
1294 MIPS64 architecture. Many modern embedded systems with a 64-bit
1295 MIPS processor are based on a MIPS64 processor. If you know the
1296 specific type of processor in your system, choose those that one
1297 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1301 depends on SYS_HAS_CPU_R3000
1303 select CPU_SUPPORTS_32BIT_KERNEL
1304 select CPU_SUPPORTS_HIGHMEM
1306 Please make sure to pick the right CPU type. Linux/MIPS is not
1307 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1308 *not* work on R4000 machines and vice versa. However, since most
1309 of the supported machines have an R4000 (or similar) CPU, R4x00
1310 might be a safe bet. If the resulting kernel does not work,
1311 try to recompile with R3000.
1315 depends on SYS_HAS_CPU_TX39XX
1316 select CPU_SUPPORTS_32BIT_KERNEL
1320 depends on SYS_HAS_CPU_VR41XX
1321 select CPU_SUPPORTS_32BIT_KERNEL
1322 select CPU_SUPPORTS_64BIT_KERNEL
1324 The options selects support for the NEC VR4100 series of processors.
1325 Only choose this option if you have one of these processors as a
1326 kernel built with this option will not run on any other type of
1327 processor or vice versa.
1331 depends on SYS_HAS_CPU_R4300
1332 select CPU_SUPPORTS_32BIT_KERNEL
1333 select CPU_SUPPORTS_64BIT_KERNEL
1335 MIPS Technologies R4300-series processors.
1339 depends on SYS_HAS_CPU_R4X00
1340 select CPU_SUPPORTS_32BIT_KERNEL
1341 select CPU_SUPPORTS_64BIT_KERNEL
1342 select CPU_SUPPORTS_HUGEPAGES
1344 MIPS Technologies R4000-series processors other than 4300, including
1345 the R4000, R4400, R4600, and 4700.
1349 depends on SYS_HAS_CPU_TX49XX
1350 select CPU_HAS_PREFETCH
1351 select CPU_SUPPORTS_32BIT_KERNEL
1352 select CPU_SUPPORTS_64BIT_KERNEL
1353 select CPU_SUPPORTS_HUGEPAGES
1357 depends on SYS_HAS_CPU_R5000
1358 select CPU_SUPPORTS_32BIT_KERNEL
1359 select CPU_SUPPORTS_64BIT_KERNEL
1360 select CPU_SUPPORTS_HUGEPAGES
1362 MIPS Technologies R5000-series processors other than the Nevada.
1366 depends on SYS_HAS_CPU_R5432
1367 select CPU_SUPPORTS_32BIT_KERNEL
1368 select CPU_SUPPORTS_64BIT_KERNEL
1369 select CPU_SUPPORTS_HUGEPAGES
1373 depends on SYS_HAS_CPU_R5500
1374 select CPU_SUPPORTS_32BIT_KERNEL
1375 select CPU_SUPPORTS_64BIT_KERNEL
1376 select CPU_SUPPORTS_HUGEPAGES
1378 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1383 depends on SYS_HAS_CPU_R6000
1384 select CPU_SUPPORTS_32BIT_KERNEL
1386 MIPS Technologies R6000 and R6000A series processors. Note these
1387 processors are extremely rare and the support for them is incomplete.
1391 depends on SYS_HAS_CPU_NEVADA
1392 select CPU_SUPPORTS_32BIT_KERNEL
1393 select CPU_SUPPORTS_64BIT_KERNEL
1394 select CPU_SUPPORTS_HUGEPAGES
1396 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1400 depends on SYS_HAS_CPU_R8000
1401 select CPU_HAS_PREFETCH
1402 select CPU_SUPPORTS_64BIT_KERNEL
1404 MIPS Technologies R8000 processors. Note these processors are
1405 uncommon and the support for them is incomplete.
1409 depends on SYS_HAS_CPU_R10000
1410 select CPU_HAS_PREFETCH
1411 select CPU_SUPPORTS_32BIT_KERNEL
1412 select CPU_SUPPORTS_64BIT_KERNEL
1413 select CPU_SUPPORTS_HIGHMEM
1414 select CPU_SUPPORTS_HUGEPAGES
1416 MIPS Technologies R10000-series processors.
1420 depends on SYS_HAS_CPU_RM7000
1421 select CPU_HAS_PREFETCH
1422 select CPU_SUPPORTS_32BIT_KERNEL
1423 select CPU_SUPPORTS_64BIT_KERNEL
1424 select CPU_SUPPORTS_HIGHMEM
1425 select CPU_SUPPORTS_HUGEPAGES
1429 depends on SYS_HAS_CPU_SB1
1430 select CPU_SUPPORTS_32BIT_KERNEL
1431 select CPU_SUPPORTS_64BIT_KERNEL
1432 select CPU_SUPPORTS_HIGHMEM
1433 select CPU_SUPPORTS_HUGEPAGES
1434 select WEAK_ORDERING
1436 config CPU_CAVIUM_OCTEON
1437 bool "Cavium Octeon processor"
1438 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1439 select CPU_HAS_PREFETCH
1440 select CPU_SUPPORTS_64BIT_KERNEL
1441 select WEAK_ORDERING
1442 select CPU_SUPPORTS_HIGHMEM
1443 select CPU_SUPPORTS_HUGEPAGES
1444 select USB_EHCI_BIG_ENDIAN_MMIO
1445 select MIPS_L1_CACHE_SHIFT_7
1447 The Cavium Octeon processor is a highly integrated chip containing
1448 many ethernet hardware widgets for networking tasks. The processor
1449 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1450 Full details can be found at http://www.caviumnetworks.com.
1453 bool "Broadcom BMIPS"
1454 depends on SYS_HAS_CPU_BMIPS
1456 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1457 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1458 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1459 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1460 select CPU_SUPPORTS_32BIT_KERNEL
1461 select DMA_NONCOHERENT
1463 select SWAP_IO_SPACE
1464 select WEAK_ORDERING
1465 select CPU_SUPPORTS_HIGHMEM
1466 select CPU_HAS_PREFETCH
1468 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1471 bool "Netlogic XLR SoC"
1472 depends on SYS_HAS_CPU_XLR
1473 select CPU_SUPPORTS_32BIT_KERNEL
1474 select CPU_SUPPORTS_64BIT_KERNEL
1475 select CPU_SUPPORTS_HIGHMEM
1476 select CPU_SUPPORTS_HUGEPAGES
1477 select WEAK_ORDERING
1478 select WEAK_REORDERING_BEYOND_LLSC
1480 Netlogic Microsystems XLR/XLS processors.
1483 bool "Netlogic XLP SoC"
1484 depends on SYS_HAS_CPU_XLP
1485 select CPU_SUPPORTS_32BIT_KERNEL
1486 select CPU_SUPPORTS_64BIT_KERNEL
1487 select CPU_SUPPORTS_HIGHMEM
1488 select WEAK_ORDERING
1489 select WEAK_REORDERING_BEYOND_LLSC
1490 select CPU_HAS_PREFETCH
1493 Netlogic Microsystems XLP processors.
1496 config CPU_MIPS32_3_5_FEATURES
1497 bool "MIPS32 Release 3.5 Features"
1498 depends on SYS_HAS_CPU_MIPS32_R3_5
1499 depends on CPU_MIPS32_R2
1501 Choose this option to build a kernel for release 2 or later of the
1502 MIPS32 architecture including features from the 3.5 release such as
1503 support for Enhanced Virtual Addressing (EVA).
1505 config CPU_MIPS32_3_5_EVA
1506 bool "Enhanced Virtual Addressing (EVA)"
1507 depends on CPU_MIPS32_3_5_FEATURES
1511 Choose this option if you want to enable the Enhanced Virtual
1512 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1513 One of its primary benefits is an increase in the maximum size
1514 of lowmem (up to 3GB). If unsure, say 'N' here.
1517 config CPU_NOP_WORKAROUNDS
1520 config CPU_JUMP_WORKAROUNDS
1523 config CPU_LOONGSON2F_WORKAROUNDS
1524 bool "Loongson 2F Workarounds"
1526 select CPU_NOP_WORKAROUNDS
1527 select CPU_JUMP_WORKAROUNDS
1529 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1530 require workarounds. Without workarounds the system may hang
1531 unexpectedly. For more information please refer to the gas
1532 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1534 Loongson 2F03 and later have fixed these issues and no workarounds
1535 are needed. The workarounds have no significant side effect on them
1536 but may decrease the performance of the system so this option should
1537 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1540 If unsure, please say Y.
1541 endif # CPU_LOONGSON2F
1543 config SYS_SUPPORTS_ZBOOT
1545 select HAVE_KERNEL_GZIP
1546 select HAVE_KERNEL_BZIP2
1547 select HAVE_KERNEL_LZ4
1548 select HAVE_KERNEL_LZMA
1549 select HAVE_KERNEL_LZO
1550 select HAVE_KERNEL_XZ
1552 config SYS_SUPPORTS_ZBOOT_UART16550
1554 select SYS_SUPPORTS_ZBOOT
1556 config CPU_LOONGSON2
1558 select CPU_SUPPORTS_32BIT_KERNEL
1559 select CPU_SUPPORTS_64BIT_KERNEL
1560 select CPU_SUPPORTS_HIGHMEM
1561 select CPU_SUPPORTS_HUGEPAGES
1563 config CPU_LOONGSON1
1567 select CPU_HAS_PREFETCH
1568 select CPU_SUPPORTS_32BIT_KERNEL
1569 select CPU_SUPPORTS_HIGHMEM
1571 config CPU_BMIPS32_3300
1572 select SMP_UP if SMP
1575 config CPU_BMIPS4350
1577 select SYS_SUPPORTS_SMP
1578 select SYS_SUPPORTS_HOTPLUG_CPU
1580 config CPU_BMIPS4380
1582 select SYS_SUPPORTS_SMP
1583 select SYS_SUPPORTS_HOTPLUG_CPU
1585 config CPU_BMIPS5000
1587 select MIPS_CPU_SCACHE
1588 select SYS_SUPPORTS_SMP
1589 select SYS_SUPPORTS_HOTPLUG_CPU
1591 config SYS_HAS_CPU_LOONGSON3
1593 select CPU_SUPPORTS_CPUFREQ
1595 config SYS_HAS_CPU_LOONGSON2E
1598 config SYS_HAS_CPU_LOONGSON2F
1600 select CPU_SUPPORTS_CPUFREQ
1601 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1602 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1604 config SYS_HAS_CPU_LOONGSON1B
1607 config SYS_HAS_CPU_MIPS32_R1
1610 config SYS_HAS_CPU_MIPS32_R2
1613 config SYS_HAS_CPU_MIPS32_R3_5
1616 config SYS_HAS_CPU_MIPS64_R1
1619 config SYS_HAS_CPU_MIPS64_R2
1622 config SYS_HAS_CPU_R3000
1625 config SYS_HAS_CPU_TX39XX
1628 config SYS_HAS_CPU_VR41XX
1631 config SYS_HAS_CPU_R4300
1634 config SYS_HAS_CPU_R4X00
1637 config SYS_HAS_CPU_TX49XX
1640 config SYS_HAS_CPU_R5000
1643 config SYS_HAS_CPU_R5432
1646 config SYS_HAS_CPU_R5500
1649 config SYS_HAS_CPU_R6000
1652 config SYS_HAS_CPU_NEVADA
1655 config SYS_HAS_CPU_R8000
1658 config SYS_HAS_CPU_R10000
1661 config SYS_HAS_CPU_RM7000
1664 config SYS_HAS_CPU_SB1
1667 config SYS_HAS_CPU_CAVIUM_OCTEON
1670 config SYS_HAS_CPU_BMIPS
1673 config SYS_HAS_CPU_BMIPS32_3300
1675 select SYS_HAS_CPU_BMIPS
1677 config SYS_HAS_CPU_BMIPS4350
1679 select SYS_HAS_CPU_BMIPS
1681 config SYS_HAS_CPU_BMIPS4380
1683 select SYS_HAS_CPU_BMIPS
1685 config SYS_HAS_CPU_BMIPS5000
1687 select SYS_HAS_CPU_BMIPS
1689 config SYS_HAS_CPU_XLR
1692 config SYS_HAS_CPU_XLP
1695 config MIPS_MALTA_PM
1696 depends on MIPS_MALTA
1702 # CPU may reorder R->R, R->W, W->R, W->W
1703 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1705 config WEAK_ORDERING
1709 # CPU may reorder reads and writes beyond LL/SC
1710 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1712 config WEAK_REORDERING_BEYOND_LLSC
1717 # These two indicate any level of the MIPS32 and MIPS64 architecture
1721 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1725 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1728 # These two indicate the revision of the architecture, either Release 1 or Release 2
1732 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1736 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1741 config SYS_SUPPORTS_32BIT_KERNEL
1743 config SYS_SUPPORTS_64BIT_KERNEL
1745 config CPU_SUPPORTS_32BIT_KERNEL
1747 config CPU_SUPPORTS_64BIT_KERNEL
1749 config CPU_SUPPORTS_CPUFREQ
1751 config CPU_SUPPORTS_ADDRWINCFG
1753 config CPU_SUPPORTS_HUGEPAGES
1755 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1757 config MIPS_PGD_C0_CONTEXT
1759 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1762 # Set to y for ptrace access to watch registers.
1764 config HARDWARE_WATCHPOINTS
1766 default y if CPU_MIPSR1 || CPU_MIPSR2
1771 prompt "Kernel code model"
1773 You should only select this option if you have a workload that
1774 actually benefits from 64-bit processing or if your machine has
1775 large memory. You will only be presented a single option in this
1776 menu if your system does not support both 32-bit and 64-bit kernels.
1779 bool "32-bit kernel"
1780 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1783 Select this option if you want to build a 32-bit kernel.
1785 bool "64-bit kernel"
1786 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1788 Select this option if you want to build a 64-bit kernel.
1793 bool "KVM Guest Kernel"
1794 depends on BROKEN_ON_SMP
1796 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1798 config KVM_GUEST_TIMER_FREQ
1799 int "Count/Compare Timer Frequency (MHz)"
1800 depends on KVM_GUEST
1803 Set this to non-zero if building a guest kernel for KVM to skip RTC
1804 emulation when determining guest CPU Frequency. Instead, the guest's
1805 timer frequency is specified directly.
1808 prompt "Kernel page size"
1809 default PAGE_SIZE_4KB
1811 config PAGE_SIZE_4KB
1813 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1815 This option select the standard 4kB Linux page size. On some
1816 R3000-family processors this is the only available page size. Using
1817 4kB page size will minimize memory consumption and is therefore
1818 recommended for low memory systems.
1820 config PAGE_SIZE_8KB
1822 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1824 Using 8kB page size will result in higher performance kernel at
1825 the price of higher memory consumption. This option is available
1826 only on R8000 and cnMIPS processors. Note that you will need a
1827 suitable Linux distribution to support this.
1829 config PAGE_SIZE_16KB
1831 depends on !CPU_R3000 && !CPU_TX39XX
1833 Using 16kB page size will result in higher performance kernel at
1834 the price of higher memory consumption. This option is available on
1835 all non-R3000 family processors. Note that you will need a suitable
1836 Linux distribution to support this.
1838 config PAGE_SIZE_32KB
1840 depends on CPU_CAVIUM_OCTEON
1842 Using 32kB page size will result in higher performance kernel at
1843 the price of higher memory consumption. This option is available
1844 only on cnMIPS cores. Note that you will need a suitable Linux
1845 distribution to support this.
1847 config PAGE_SIZE_64KB
1849 depends on !CPU_R3000 && !CPU_TX39XX
1851 Using 64kB page size will result in higher performance kernel at
1852 the price of higher memory consumption. This option is available on
1853 all non-R3000 family processor. Not that at the time of this
1854 writing this option is still high experimental.
1858 config FORCE_MAX_ZONEORDER
1859 int "Maximum zone order"
1860 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1861 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1862 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1863 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1864 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1865 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1869 The kernel memory allocator divides physically contiguous memory
1870 blocks into "zones", where each zone is a power of two number of
1871 pages. This option selects the largest power of two that the kernel
1872 keeps in the memory allocator. If you need to allocate very large
1873 blocks of physically contiguous memory, then you may need to
1874 increase this value.
1876 This config option is actually maximum order plus one. For example,
1877 a value of 11 means that the largest free memory block is 2^10 pages.
1879 The page size is not necessarily 4KB. Keep this in mind
1880 when choosing a value for this option.
1883 bool "Use GIC global counter for clock events"
1884 depends on IRQ_GIC && !MIPS_SEAD3
1886 Use the GIC global counter for the clock events. The R4K clock
1887 event driver is always present, so if the platform ends up not
1888 detecting a GIC, it will fall back to the R4K timer for the
1889 generation of clock events.
1894 config IP22_CPU_SCACHE
1899 # Support for a MIPS32 / MIPS64 style S-caches
1901 config MIPS_CPU_SCACHE
1904 select MIPS_L1_CACHE_SHIFT_6
1906 config R5000_CPU_SCACHE
1910 config RM7000_CPU_SCACHE
1914 config SIBYTE_DMA_PAGEOPS
1915 bool "Use DMA to clear/copy pages"
1918 Instead of using the CPU to zero and copy pages, use a Data Mover
1919 channel. These DMA channels are otherwise unused by the standard
1920 SiByte Linux port. Seems to give a small performance benefit.
1922 config CPU_HAS_PREFETCH
1925 config CPU_GENERIC_DUMP_TLB
1927 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1931 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1933 config CPU_R4K_CACHE_TLB
1935 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1938 bool "MIPS MT SMP support (1 TC on each available VPE)"
1939 depends on SYS_SUPPORTS_MULTITHREADING
1940 select CPU_MIPSR2_IRQ_VI
1941 select CPU_MIPSR2_IRQ_EI
1947 select SYS_SUPPORTS_SMP
1948 select SYS_SUPPORTS_SCHED_SMT
1949 select MIPS_PERF_SHARED_TC_COUNTERS
1951 This is a kernel model which is known as SMVP. This is supported
1952 on cores with the MT ASE and uses the available VPEs to implement
1953 virtual processors which supports SMP. This is equivalent to the
1954 Intel Hyperthreading feature. For further information go to
1955 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1961 bool "SMT (multithreading) scheduler support"
1962 depends on SYS_SUPPORTS_SCHED_SMT
1965 SMT scheduler support improves the CPU scheduler's decision making
1966 when dealing with MIPS MT enabled cores at a cost of slightly
1967 increased overhead in some places. If unsure say N here.
1969 config SYS_SUPPORTS_SCHED_SMT
1972 config SYS_SUPPORTS_MULTITHREADING
1975 config MIPS_MT_FPAFF
1976 bool "Dynamic FPU affinity for FP-intensive threads"
1978 depends on MIPS_MT_SMP
1980 config MIPS_VPE_LOADER
1981 bool "VPE loader support."
1982 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1983 select CPU_MIPSR2_IRQ_VI
1984 select CPU_MIPSR2_IRQ_EI
1987 Includes a loader for loading an elf relocatable object
1988 onto another VPE and running it.
1990 config MIPS_VPE_LOADER_CMP
1993 depends on MIPS_VPE_LOADER && MIPS_CMP
1995 config MIPS_VPE_LOADER_MT
1998 depends on MIPS_VPE_LOADER && !MIPS_CMP
2000 config MIPS_VPE_LOADER_TOM
2001 bool "Load VPE program into memory hidden from linux"
2002 depends on MIPS_VPE_LOADER
2005 The loader can use memory that is present but has been hidden from
2006 Linux using the kernel command line option "mem=xxMB". It's up to
2007 you to ensure the amount you put in the option and the space your
2008 program requires is less or equal to the amount physically present.
2010 config MIPS_VPE_APSP_API
2011 bool "Enable support for AP/SP API (RTLX)"
2012 depends on MIPS_VPE_LOADER
2015 config MIPS_VPE_APSP_API_CMP
2018 depends on MIPS_VPE_APSP_API && MIPS_CMP
2020 config MIPS_VPE_APSP_API_MT
2023 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2026 bool "MIPS CMP framework support (DEPRECATED)"
2027 depends on SYS_SUPPORTS_MIPS_CMP
2030 select WEAK_ORDERING
2033 Select this if you are using a bootloader which implements the "CMP
2034 framework" protocol (ie. YAMON) and want your kernel to make use of
2035 its ability to start secondary CPUs.
2037 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2041 bool "MIPS Coherent Processing System support"
2042 depends on SYS_SUPPORTS_MIPS_CPS
2045 select MIPS_CPS_PM if HOTPLUG_CPU
2048 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2049 select SYS_SUPPORTS_HOTPLUG_CPU
2050 select SYS_SUPPORTS_SMP
2051 select WEAK_ORDERING
2053 Select this if you wish to run an SMP kernel across multiple cores
2054 within a MIPS Coherent Processing System. When this option is
2055 enabled the kernel will probe for other cores and boot them with
2056 no external assistance. It is safe to enable this when hardware
2057 support is unavailable.
2071 config SB1_PASS_1_WORKAROUNDS
2073 depends on CPU_SB1_PASS_1
2076 config SB1_PASS_2_WORKAROUNDS
2078 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2081 config SB1_PASS_2_1_WORKAROUNDS
2083 depends on CPU_SB1 && CPU_SB1_PASS_2
2087 config 64BIT_PHYS_ADDR
2090 config ARCH_PHYS_ADDR_T_64BIT
2091 def_bool 64BIT_PHYS_ADDR
2093 config CPU_HAS_SMARTMIPS
2094 depends on SYS_SUPPORTS_SMARTMIPS
2095 bool "Support for the SmartMIPS ASE"
2097 SmartMIPS is a extension of the MIPS32 architecture aimed at
2098 increased security at both hardware and software level for
2099 smartcards. Enabling this option will allow proper use of the
2100 SmartMIPS instructions by Linux applications. However a kernel with
2101 this option will not work on a MIPS core without SmartMIPS core. If
2102 you don't know you probably don't have SmartMIPS and should say N
2105 config CPU_MICROMIPS
2106 depends on SYS_SUPPORTS_MICROMIPS
2107 bool "Build kernel using microMIPS ISA"
2109 When this option is enabled the kernel will be built using the
2113 bool "Support for the MIPS SIMD Architecture"
2114 depends on CPU_SUPPORTS_MSA
2117 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2118 and a set of SIMD instructions to operate on them. When this option
2119 is enabled the kernel will support allocating & switching MSA
2120 vector register contexts. If you know that your kernel will only be
2121 running on CPUs which do not support MSA or that your userland will
2122 not be making use of it then you may wish to say N here to reduce
2123 the size & complexity of your kernel.
2134 # Vectored interrupt mode is an R2 feature
2136 config CPU_MIPSR2_IRQ_VI
2140 # Extended interrupt mode is an R2 feature
2142 config CPU_MIPSR2_IRQ_EI
2147 depends on !CPU_R3000
2153 config CPU_DADDI_WORKAROUNDS
2156 config CPU_R4000_WORKAROUNDS
2158 select CPU_R4400_WORKAROUNDS
2160 config CPU_R4400_WORKAROUNDS
2164 # - Highmem only makes sense for the 32-bit kernel.
2165 # - The current highmem code will only work properly on physically indexed
2166 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2167 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2168 # moment we protect the user and offer the highmem option only on machines
2169 # where it's known to be safe. This will not offer highmem on a few systems
2170 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2171 # indexed CPUs but we're playing safe.
2172 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2173 # know they might have memory configurations that could make use of highmem
2177 bool "High Memory Support"
2178 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2180 config CPU_SUPPORTS_HIGHMEM
2183 config SYS_SUPPORTS_HIGHMEM
2186 config SYS_SUPPORTS_SMARTMIPS
2189 config SYS_SUPPORTS_MICROMIPS
2192 config SYS_SUPPORTS_MIPS16
2195 This option must be set if a kernel might be executed on a MIPS16-
2196 enabled CPU even if MIPS16 is not actually being used. In other
2197 words, it makes the kernel MIPS16-tolerant.
2199 config CPU_SUPPORTS_MSA
2202 config ARCH_FLATMEM_ENABLE
2204 depends on !NUMA && !CPU_LOONGSON2
2206 config ARCH_DISCONTIGMEM_ENABLE
2208 default y if SGI_IP27
2210 Say Y to support efficient handling of discontiguous physical memory,
2211 for architectures which are either NUMA (Non-Uniform Memory Access)
2212 or have huge holes in the physical address space for other reasons.
2213 See <file:Documentation/vm/numa> for more.
2215 config ARCH_SPARSEMEM_ENABLE
2217 select SPARSEMEM_STATIC
2221 depends on SYS_SUPPORTS_NUMA
2223 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2224 Access). This option improves performance on systems with more
2225 than two nodes; on two node systems it is generally better to
2226 leave it disabled; on single node systems disable this option
2229 config SYS_SUPPORTS_NUMA
2235 depends on NEED_MULTIPLE_NODES
2237 config HW_PERF_EVENTS
2238 bool "Enable hardware performance counter support for perf events"
2239 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2242 Enable hardware performance counter support for perf events. If
2243 disabled, perf events will use software events only.
2248 bool "Multi-Processing support"
2249 depends on SYS_SUPPORTS_SMP
2251 This enables support for systems with more than one CPU. If you have
2252 a system with only one CPU, say N. If you have a system with more
2253 than one CPU, say Y.
2255 If you say N here, the kernel will run on uni- and multiprocessor
2256 machines, but will use only one CPU of a multiprocessor machine. If
2257 you say Y here, the kernel will run on many, but not all,
2258 uniprocessor machines. On a uniprocessor machine, the kernel
2259 will run faster if you say N here.
2261 People using multiprocessor machines who say Y here should also say
2262 Y to "Enhanced Real Time Clock Support", below.
2264 See also the SMP-HOWTO available at
2265 <http://www.tldp.org/docs.html#howto>.
2267 If you don't know what to do here, say N.
2272 config SYS_SUPPORTS_MIPS_CMP
2275 config SYS_SUPPORTS_MIPS_CPS
2278 config SYS_SUPPORTS_SMP
2281 config NR_CPUS_DEFAULT_4
2284 config NR_CPUS_DEFAULT_8
2287 config NR_CPUS_DEFAULT_16
2290 config NR_CPUS_DEFAULT_32
2293 config NR_CPUS_DEFAULT_64
2297 int "Maximum number of CPUs (2-256)"
2300 default "4" if NR_CPUS_DEFAULT_4
2301 default "8" if NR_CPUS_DEFAULT_8
2302 default "16" if NR_CPUS_DEFAULT_16
2303 default "32" if NR_CPUS_DEFAULT_32
2304 default "64" if NR_CPUS_DEFAULT_64
2306 This allows you to specify the maximum number of CPUs which this
2307 kernel will support. The maximum supported value is 32 for 32-bit
2308 kernel and 64 for 64-bit kernels; the minimum value which makes
2309 sense is 1 for Qemu (useful only for kernel debugging purposes)
2310 and 2 for all others.
2312 This is purely to save memory - each supported CPU adds
2313 approximately eight kilobytes to the kernel image. For best
2314 performance should round up your number of processors to the next
2317 config MIPS_PERF_SHARED_TC_COUNTERS
2321 # Timer Interrupt Frequency Configuration
2325 prompt "Timer frequency"
2328 Allows the configuration of the timer frequency.
2331 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2334 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2337 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2340 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2343 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2346 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2349 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2353 config SYS_SUPPORTS_48HZ
2356 config SYS_SUPPORTS_100HZ
2359 config SYS_SUPPORTS_128HZ
2362 config SYS_SUPPORTS_250HZ
2365 config SYS_SUPPORTS_256HZ
2368 config SYS_SUPPORTS_1000HZ
2371 config SYS_SUPPORTS_1024HZ
2374 config SYS_SUPPORTS_ARBIT_HZ
2376 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2377 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2378 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2379 !SYS_SUPPORTS_1024HZ
2384 default 100 if HZ_100
2385 default 128 if HZ_128
2386 default 250 if HZ_250
2387 default 256 if HZ_256
2388 default 1000 if HZ_1000
2389 default 1024 if HZ_1024
2391 source "kernel/Kconfig.preempt"
2394 bool "Kexec system call"
2396 kexec is a system call that implements the ability to shutdown your
2397 current kernel, and to start another kernel. It is like a reboot
2398 but it is independent of the system firmware. And like a reboot
2399 you can start any kernel with it, not just Linux.
2401 The name comes from the similarity to the exec system call.
2403 It is an ongoing process to be certain the hardware in a machine
2404 is properly shutdown, so do not be surprised if this code does not
2405 initially work for you. As of this writing the exact hardware
2406 interface is strongly in flux, so no good recommendation can be
2410 bool "Kernel crash dumps"
2412 Generate crash dump after being started by kexec.
2413 This should be normally only set in special crash dump kernels
2414 which are loaded in the main kernel with kexec-tools into
2415 a specially reserved region and then later executed after
2416 a crash by kdump/kexec. The crash dump kernel must be compiled
2417 to a memory address not used by the main kernel or firmware using
2420 config PHYSICAL_START
2421 hex "Physical address where the kernel is loaded"
2422 default "0xffffffff84000000" if 64BIT
2423 default "0x84000000" if 32BIT
2424 depends on CRASH_DUMP
2426 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2427 If you plan to use kernel for capturing the crash dump change
2428 this value to start of the reserved region (the "X" value as
2429 specified in the "crashkernel=YM@XM" command line boot parameter
2430 passed to the panic-ed kernel).
2433 bool "Enable seccomp to safely compute untrusted bytecode"
2437 This kernel feature is useful for number crunching applications
2438 that may need to compute untrusted bytecode during their
2439 execution. By using pipes or other transports made available to
2440 the process as file descriptors supporting the read/write
2441 syscalls, it's possible to isolate those applications in
2442 their own address space using seccomp. Once seccomp is
2443 enabled via /proc/<pid>/seccomp, it cannot be disabled
2444 and the task is only allowed to execute a few safe syscalls
2445 defined by each seccomp mode.
2447 If unsure, say Y. Only embedded should say N here.
2449 config MIPS_O32_FP64_SUPPORT
2450 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2451 depends on 32BIT || MIPS32_O32
2453 When this is enabled, the kernel will support use of 64-bit floating
2454 point registers with binaries using the O32 ABI along with the
2455 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2456 32-bit MIPS systems this support is at the cost of increasing the
2457 size and complexity of the compiled FPU emulator. Thus if you are
2458 running a MIPS32 system and know that none of your userland binaries
2459 will require 64-bit floating point, you may wish to reduce the size
2460 of your kernel & potentially improve FP emulation performance by
2463 Although binutils currently supports use of this flag the details
2464 concerning its effect upon the O32 ABI in userland are still being
2465 worked on. In order to avoid userland becoming dependant upon current
2466 behaviour before the details have been finalised, this option should
2467 be considered experimental and only enabled by those working upon
2475 select OF_EARLY_FLATTREE
2480 config LOCKDEP_SUPPORT
2484 config STACKTRACE_SUPPORT
2488 source "init/Kconfig"
2490 source "kernel/Kconfig.freezer"
2492 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2500 bool "Support for PCI controller"
2501 depends on HW_HAS_PCI
2503 select NO_GENERIC_PCI_IOPORT_MAP
2505 Find out whether you have a PCI motherboard. PCI is the name of a
2506 bus system, i.e. the way the CPU talks to the other stuff inside
2507 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2511 bool "Support for HT-linked PCI"
2513 depends on CPU_LOONGSON3
2517 Loongson family machines use Hyper-Transport bus for inter-core
2518 connection and device connection. The PCI bus is a subordinate
2519 linked at HT. Choose Y for Loongson-3 based machines.
2524 source "drivers/pci/Kconfig"
2526 source "drivers/pci/pcie/Kconfig"
2529 # ISA support is now enabled via select. Too many systems still have the one
2530 # or other ISA chip on the board that users don't know about so don't expect
2531 # users to choose the right thing ...
2538 depends on HW_HAS_EISA
2540 select GENERIC_ISA_DMA
2542 The Extended Industry Standard Architecture (EISA) bus was
2543 developed as an open alternative to the IBM MicroChannel bus.
2545 The EISA bus provided some of the features of the IBM MicroChannel
2546 bus while maintaining backward compatibility with cards made for
2547 the older ISA bus. The EISA bus saw limited use between 1988 and
2548 1995 when it was made obsolete by the PCI bus.
2550 Say Y here if you are building a kernel for an EISA-based machine.
2554 source "drivers/eisa/Kconfig"
2557 bool "TURBOchannel support"
2558 depends on MACH_DECSTATION
2560 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2561 processors. TURBOchannel programming specifications are available
2563 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2565 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2566 Linux driver support status is documented at:
2567 <http://www.linux-mips.org/wiki/DECstation>
2577 select MIPS_EXTERNAL_TIMER
2585 source "drivers/pcmcia/Kconfig"
2587 source "drivers/pci/hotplug/Kconfig"
2590 tristate "RapidIO support"
2594 If you say Y here, the kernel will include drivers and
2595 infrastructure code to support RapidIO interconnect devices.
2597 source "drivers/rapidio/Kconfig"
2601 menu "Executable file formats"
2603 source "fs/Kconfig.binfmt"
2608 config MIPS32_COMPAT
2609 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2612 Select this option if you want Linux/MIPS 32-bit binary
2613 compatibility. Since all software available for Linux/MIPS is
2614 currently 32-bit you should say Y here.
2618 depends on MIPS32_COMPAT
2619 select ARCH_WANT_OLD_COMPAT_IPC
2622 config SYSVIPC_COMPAT
2624 depends on COMPAT && SYSVIPC
2628 bool "Kernel support for o32 binaries"
2629 depends on MIPS32_COMPAT
2631 Select this option if you want to run o32 binaries. These are pure
2632 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2633 existing binaries are in this format.
2638 bool "Kernel support for n32 binaries"
2639 depends on MIPS32_COMPAT
2641 Select this option if you want to run n32 binaries. These are
2642 64-bit binaries using 32-bit quantities for addressing and certain
2643 data that would normally be 64-bit. They are used in special
2650 default y if MIPS32_O32 || MIPS32_N32
2654 menu "Power management options"
2656 config ARCH_HIBERNATION_POSSIBLE
2658 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2660 config ARCH_SUSPEND_POSSIBLE
2662 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2664 source "kernel/power/Kconfig"
2668 config MIPS_EXTERNAL_TIMER
2671 menu "CPU Power Management"
2673 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2674 source "drivers/cpufreq/Kconfig"
2677 source "drivers/cpuidle/Kconfig"
2681 source "net/Kconfig"
2683 source "drivers/Kconfig"
2685 source "drivers/firmware/Kconfig"
2689 source "arch/mips/Kconfig.debug"
2691 source "security/Kconfig"
2693 source "crypto/Kconfig"
2695 source "lib/Kconfig"
2697 source "arch/mips/kvm/Kconfig"