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 ARCH_HAVE_CUSTOM_GPIO_H
16 select HAVE_FUNCTION_TRACER
17 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
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
54 menu "Machine selection"
61 bool "Alchemy processor based machines"
62 select 64BIT_PHYS_ADDR
66 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
67 select SYS_HAS_CPU_MIPS32_R1
68 select SYS_SUPPORTS_32BIT_KERNEL
69 select SYS_SUPPORTS_APM_EMULATION
70 select ARCH_REQUIRE_GPIOLIB
71 select SYS_SUPPORTS_ZBOOT
72 select USB_ARCH_HAS_OHCI
73 select USB_ARCH_HAS_EHCI
76 bool "Texas Instruments AR7"
78 select DMA_NONCOHERENT
84 select SYS_HAS_CPU_MIPS32_R1
85 select SYS_HAS_EARLY_PRINTK
86 select SYS_SUPPORTS_32BIT_KERNEL
87 select SYS_SUPPORTS_LITTLE_ENDIAN
88 select SYS_SUPPORTS_ZBOOT_UART16550
89 select ARCH_REQUIRE_GPIOLIB
93 Support for the Texas Instruments AR7 System-on-a-Chip
94 family: TNETD7100, 7200 and 7300.
97 bool "Atheros AR71XX/AR724X/AR913X based boards"
98 select ARCH_REQUIRE_GPIOLIB
102 select DMA_NONCOHERENT
107 select SYS_HAS_CPU_MIPS32_R2
108 select SYS_HAS_EARLY_PRINTK
109 select SYS_SUPPORTS_32BIT_KERNEL
110 select SYS_SUPPORTS_BIG_ENDIAN
112 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
115 bool "Broadcom BCM47XX based boards"
116 select ARCH_WANT_OPTIONAL_GPIOLIB
120 select DMA_NONCOHERENT
123 select SYS_HAS_CPU_MIPS32_R1
124 select NO_EXCEPT_FILL
125 select SYS_SUPPORTS_32BIT_KERNEL
126 select SYS_SUPPORTS_LITTLE_ENDIAN
127 select SYS_HAS_EARLY_PRINTK
128 select USE_GENERIC_EARLY_PRINTK_8250
130 Support for BCM47XX based boards
133 bool "Broadcom BCM63XX based boards"
137 select DMA_NONCOHERENT
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_BIG_ENDIAN
141 select SYS_HAS_EARLY_PRINTK
143 select ARCH_REQUIRE_GPIOLIB
145 select MIPS_L1_CACHE_SHIFT_4
147 Support for BCM63XX based boards
154 select DMA_NONCOHERENT
160 select PCI_GT64XXX_PCI0
162 select SYS_HAS_CPU_NEVADA
163 select SYS_HAS_EARLY_PRINTK
164 select SYS_SUPPORTS_32BIT_KERNEL
165 select SYS_SUPPORTS_64BIT_KERNEL
166 select SYS_SUPPORTS_LITTLE_ENDIAN
167 select USE_GENERIC_EARLY_PRINTK_8250
169 config MACH_DECSTATION
176 select CPU_DADDI_WORKAROUNDS if 64BIT
177 select CPU_R4000_WORKAROUNDS if 64BIT
178 select CPU_R4400_WORKAROUNDS if 64BIT
179 select DMA_NONCOHERENT
182 select SYS_HAS_CPU_R3000
183 select SYS_HAS_CPU_R4X00
184 select SYS_SUPPORTS_32BIT_KERNEL
185 select SYS_SUPPORTS_64BIT_KERNEL
186 select SYS_SUPPORTS_LITTLE_ENDIAN
187 select SYS_SUPPORTS_128HZ
188 select SYS_SUPPORTS_256HZ
189 select SYS_SUPPORTS_1024HZ
190 select MIPS_L1_CACHE_SHIFT_4
192 This enables support for DEC's MIPS based workstations. For details
193 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
194 DECstation porting pages on <http://decstation.unix-ag.org/>.
196 If you have one of the following DECstation Models you definitely
197 want to choose R4xx0 for the CPU Type:
204 otherwise choose R3000.
207 bool "Jazz family of machines"
210 select ARCH_MAY_HAVE_PC_FDC
213 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
214 select GENERIC_ISA_DMA
215 select HAVE_PCSPKR_PLATFORM
220 select SYS_HAS_CPU_R4X00
221 select SYS_SUPPORTS_32BIT_KERNEL
222 select SYS_SUPPORTS_64BIT_KERNEL
223 select SYS_SUPPORTS_100HZ
225 This a family of machines based on the MIPS R4030 chipset which was
226 used by several vendors to build RISC/os and Windows NT workstations.
227 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
228 Olivetti M700-10 workstations.
231 bool "Ingenic JZ4740 based machines"
232 select SYS_HAS_CPU_MIPS32_R1
233 select SYS_SUPPORTS_32BIT_KERNEL
234 select SYS_SUPPORTS_LITTLE_ENDIAN
235 select SYS_SUPPORTS_ZBOOT_UART16550
236 select DMA_NONCOHERENT
238 select ARCH_REQUIRE_GPIOLIB
239 select SYS_HAS_EARLY_PRINTK
241 select GENERIC_IRQ_CHIP
244 bool "Lantiq based platforms"
245 select DMA_NONCOHERENT
249 select SYS_HAS_CPU_MIPS32_R1
250 select SYS_HAS_CPU_MIPS32_R2
251 select SYS_SUPPORTS_BIG_ENDIAN
252 select SYS_SUPPORTS_32BIT_KERNEL
253 select SYS_SUPPORTS_MULTITHREADING
254 select SYS_HAS_EARLY_PRINTK
255 select ARCH_REQUIRE_GPIOLIB
258 select HAVE_MACH_CLKDEV
262 select PINCTRL_LANTIQ
265 bool "LASAT Networks platforms"
268 select DMA_NONCOHERENT
269 select SYS_HAS_EARLY_PRINTK
272 select PCI_GT64XXX_PCI0
274 select R5000_CPU_SCACHE
275 select SYS_HAS_CPU_R5000
276 select SYS_SUPPORTS_32BIT_KERNEL
277 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
278 select SYS_SUPPORTS_LITTLE_ENDIAN
281 bool "Loongson family of machines"
282 select SYS_SUPPORTS_ZBOOT
284 This enables the support of Loongson family of machines.
286 Loongson is a family of general-purpose MIPS-compatible CPUs.
287 developed at Institute of Computing Technology (ICT),
288 Chinese Academy of Sciences (CAS) in the People's Republic
289 of China. The chief architect is Professor Weiwu Hu.
291 config MACH_LOONGSON1
292 bool "Loongson 1 family of machines"
293 select SYS_SUPPORTS_ZBOOT
295 This enables support for the Loongson 1 based machines.
297 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
298 the ICT (Institute of Computing Technology) and the Chinese Academy
302 bool "MIPS Malta board"
303 select ARCH_MAY_HAVE_PC_FDC
309 select DMA_MAYBE_COHERENT
310 select GENERIC_ISA_DMA
311 select HAVE_PCSPKR_PLATFORM
318 select MIPS_CPU_SCACHE
319 select PCI_GT64XXX_PCI0
322 select SYS_HAS_CPU_MIPS32_R1
323 select SYS_HAS_CPU_MIPS32_R2
324 select SYS_HAS_CPU_MIPS32_R3_5
325 select SYS_HAS_CPU_MIPS64_R1
326 select SYS_HAS_CPU_MIPS64_R2
327 select SYS_HAS_CPU_NEVADA
328 select SYS_HAS_CPU_RM7000
329 select SYS_SUPPORTS_32BIT_KERNEL
330 select SYS_SUPPORTS_64BIT_KERNEL
331 select SYS_SUPPORTS_BIG_ENDIAN
332 select SYS_SUPPORTS_LITTLE_ENDIAN
333 select SYS_SUPPORTS_MIPS_CMP
334 select SYS_SUPPORTS_MIPS_CPS
335 select SYS_SUPPORTS_MULTITHREADING
336 select SYS_SUPPORTS_SMARTMIPS
337 select SYS_SUPPORTS_ZBOOT
339 This enables support for the MIPS Technologies Malta evaluation
343 bool "MIPS SEAD3 board"
349 select CPU_MIPSR2_IRQ_VI
350 select CPU_MIPSR2_IRQ_EI
351 select DMA_NONCOHERENT
356 select SYS_HAS_CPU_MIPS32_R1
357 select SYS_HAS_CPU_MIPS32_R2
358 select SYS_HAS_CPU_MIPS64_R1
359 select SYS_HAS_EARLY_PRINTK
360 select SYS_SUPPORTS_32BIT_KERNEL
361 select SYS_SUPPORTS_64BIT_KERNEL
362 select SYS_SUPPORTS_BIG_ENDIAN
363 select SYS_SUPPORTS_LITTLE_ENDIAN
364 select SYS_SUPPORTS_SMARTMIPS
365 select SYS_SUPPORTS_MICROMIPS
366 select USB_ARCH_HAS_EHCI
367 select USB_EHCI_BIG_ENDIAN_DESC
368 select USB_EHCI_BIG_ENDIAN_MMIO
371 This enables support for the MIPS Technologies SEAD3 evaluation
375 bool "NEC EMMA2RH Mark-eins board"
379 This enables support for the NEC Electronics Mark-eins boards.
382 bool "NEC VR4100 series based machines"
385 select SYS_HAS_CPU_VR41XX
386 select ARCH_REQUIRE_GPIOLIB
389 bool "NXP STB220 board"
392 Support for NXP Semiconductors STB220 Development Board.
399 Support for NXP Semiconductors STB225 Development Board.
402 bool "PMC-Sierra MSP chipsets"
405 select DMA_NONCOHERENT
407 select NO_EXCEPT_FILL
409 select SYS_HAS_CPU_MIPS32_R1
410 select SYS_HAS_CPU_MIPS32_R2
411 select SYS_SUPPORTS_32BIT_KERNEL
412 select SYS_SUPPORTS_BIG_ENDIAN
415 select SERIAL_8250_CONSOLE
416 select USB_EHCI_BIG_ENDIAN_MMIO
417 select USB_EHCI_BIG_ENDIAN_DESC
419 This adds support for the PMC-Sierra family of Multi-Service
420 Processor System-On-A-Chips. These parts include a number
421 of integrated peripherals, interfaces and DSPs in addition to
422 a variety of MIPS cores.
425 bool "Ralink based machines"
429 select DMA_NONCOHERENT
432 select SYS_HAS_CPU_MIPS32_R1
433 select SYS_HAS_CPU_MIPS32_R2
434 select SYS_SUPPORTS_32BIT_KERNEL
435 select SYS_SUPPORTS_LITTLE_ENDIAN
436 select SYS_HAS_EARLY_PRINTK
437 select HAVE_MACH_CLKDEV
439 select ARCH_HAS_RESET_CONTROLLER
440 select RESET_CONTROLLER
443 bool "SGI IP22 (Indy/Indigo2)"
449 select DEFAULT_SGI_PARTITION
450 select DMA_NONCOHERENT
454 select IP22_CPU_SCACHE
456 select GENERIC_ISA_DMA_SUPPORT_BROKEN
458 select SGI_HAS_INDYDOG
464 select SYS_HAS_CPU_R4X00
465 select SYS_HAS_CPU_R5000
467 # Disable EARLY_PRINTK for now since it leads to overwritten prom
468 # memory during early boot on some machines.
470 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
471 # for a more details discussion
473 # select SYS_HAS_EARLY_PRINTK
474 select SYS_SUPPORTS_32BIT_KERNEL
475 select SYS_SUPPORTS_64BIT_KERNEL
476 select SYS_SUPPORTS_BIG_ENDIAN
477 select MIPS_L1_CACHE_SHIFT_7
479 This are the SGI Indy, Challenge S and Indigo2, as well as certain
480 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
481 that runs on these, say Y here.
484 bool "SGI IP27 (Origin200/2000)"
488 select DEFAULT_SGI_PARTITION
490 select SYS_HAS_EARLY_PRINTK
492 select NR_CPUS_DEFAULT_64
493 select SYS_HAS_CPU_R10000
494 select SYS_SUPPORTS_64BIT_KERNEL
495 select SYS_SUPPORTS_BIG_ENDIAN
496 select SYS_SUPPORTS_NUMA
497 select SYS_SUPPORTS_SMP
498 select MIPS_L1_CACHE_SHIFT_7
500 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
501 workstations. To compile a Linux kernel that runs on these, say Y
505 bool "SGI IP28 (Indigo2 R10k)"
511 select DEFAULT_SGI_PARTITION
512 select DMA_NONCOHERENT
513 select GENERIC_ISA_DMA_SUPPORT_BROKEN
519 select SGI_HAS_INDYDOG
525 select SYS_HAS_CPU_R10000
527 # Disable EARLY_PRINTK for now since it leads to overwritten prom
528 # memory during early boot on some machines.
530 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
531 # for a more details discussion
533 # select SYS_HAS_EARLY_PRINTK
534 select SYS_SUPPORTS_64BIT_KERNEL
535 select SYS_SUPPORTS_BIG_ENDIAN
537 This is the SGI Indigo2 with R10000 processor. To compile a Linux
538 kernel that runs on these, say Y here.
547 select DMA_NONCOHERENT
550 select R5000_CPU_SCACHE
551 select RM7000_CPU_SCACHE
552 select SYS_HAS_CPU_R5000
553 select SYS_HAS_CPU_R10000 if BROKEN
554 select SYS_HAS_CPU_RM7000
555 select SYS_HAS_CPU_NEVADA
556 select SYS_SUPPORTS_64BIT_KERNEL
557 select SYS_SUPPORTS_BIG_ENDIAN
559 If you want this kernel to run on SGI O2 workstation, say Y here.
562 bool "Sibyte BCM91120C-CRhine"
565 select SIBYTE_BCM1120
567 select SYS_HAS_CPU_SB1
568 select SYS_SUPPORTS_BIG_ENDIAN
569 select SYS_SUPPORTS_LITTLE_ENDIAN
572 bool "Sibyte BCM91120x-Carmel"
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 BCM91125C-CRhone"
585 select SIBYTE_BCM1125
587 select SYS_HAS_CPU_SB1
588 select SYS_SUPPORTS_BIG_ENDIAN
589 select SYS_SUPPORTS_HIGHMEM
590 select SYS_SUPPORTS_LITTLE_ENDIAN
593 bool "Sibyte BCM91125E-Rhone"
596 select SIBYTE_BCM1125H
598 select SYS_HAS_CPU_SB1
599 select SYS_SUPPORTS_BIG_ENDIAN
600 select SYS_SUPPORTS_LITTLE_ENDIAN
603 bool "Sibyte BCM91250A-SWARM"
606 select HAVE_PATA_PLATFORM
609 select SYS_HAS_CPU_SB1
610 select SYS_SUPPORTS_BIG_ENDIAN
611 select SYS_SUPPORTS_HIGHMEM
612 select SYS_SUPPORTS_LITTLE_ENDIAN
613 select ZONE_DMA32 if 64BIT
615 config SIBYTE_LITTLESUR
616 bool "Sibyte BCM91250C2-LittleSur"
619 select HAVE_PATA_PLATFORM
622 select SYS_HAS_CPU_SB1
623 select SYS_SUPPORTS_BIG_ENDIAN
624 select SYS_SUPPORTS_HIGHMEM
625 select SYS_SUPPORTS_LITTLE_ENDIAN
627 config SIBYTE_SENTOSA
628 bool "Sibyte BCM91250E-Sentosa"
633 select SYS_HAS_CPU_SB1
634 select SYS_SUPPORTS_BIG_ENDIAN
635 select SYS_SUPPORTS_LITTLE_ENDIAN
638 bool "Sibyte BCM91480B-BigSur"
641 select NR_CPUS_DEFAULT_4
642 select SIBYTE_BCM1x80
644 select SYS_HAS_CPU_SB1
645 select SYS_SUPPORTS_BIG_ENDIAN
646 select SYS_SUPPORTS_HIGHMEM
647 select SYS_SUPPORTS_LITTLE_ENDIAN
648 select ZONE_DMA32 if 64BIT
651 bool "SNI RM200/300/400"
652 select FW_ARC if CPU_LITTLE_ENDIAN
653 select FW_ARC32 if CPU_LITTLE_ENDIAN
654 select FW_SNIPROM if CPU_BIG_ENDIAN
655 select ARCH_MAY_HAVE_PC_FDC
659 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
660 select DMA_NONCOHERENT
661 select GENERIC_ISA_DMA
662 select HAVE_PCSPKR_PLATFORM
669 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
670 select SYS_HAS_CPU_R4X00
671 select SYS_HAS_CPU_R5000
672 select SYS_HAS_CPU_R10000
673 select R5000_CPU_SCACHE
674 select SYS_HAS_EARLY_PRINTK
675 select SYS_SUPPORTS_32BIT_KERNEL
676 select SYS_SUPPORTS_64BIT_KERNEL
677 select SYS_SUPPORTS_BIG_ENDIAN
678 select SYS_SUPPORTS_HIGHMEM
679 select SYS_SUPPORTS_LITTLE_ENDIAN
680 select USE_GENERIC_EARLY_PRINTK_8250
682 The SNI RM200/300/400 are MIPS-based machines manufactured by
683 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
684 Technology and now in turn merged with Fujitsu. Say Y here to
685 support this machine type.
688 bool "Toshiba TX39 series based machines"
691 bool "Toshiba TX49 series based machines"
693 config MIKROTIK_RB532
694 bool "Mikrotik RB532 boards"
697 select DMA_NONCOHERENT
700 select SYS_HAS_CPU_MIPS32_R1
701 select SYS_SUPPORTS_32BIT_KERNEL
702 select SYS_SUPPORTS_LITTLE_ENDIAN
705 select ARCH_REQUIRE_GPIOLIB
706 select MIPS_L1_CACHE_SHIFT_4
708 Support the Mikrotik(tm) RouterBoard 532 series,
709 based on the IDT RC32434 SoC.
711 config CAVIUM_OCTEON_SOC
712 bool "Cavium Networks Octeon SoC based boards"
714 select 64BIT_PHYS_ADDR
716 select SYS_SUPPORTS_64BIT_KERNEL
717 select SYS_SUPPORTS_BIG_ENDIAN
719 select SYS_SUPPORTS_HOTPLUG_CPU
720 select SYS_HAS_EARLY_PRINTK
721 select SYS_HAS_CPU_CAVIUM_OCTEON
725 select USB_ARCH_HAS_OHCI
726 select USB_ARCH_HAS_EHCI
728 select ARCH_REQUIRE_GPIOLIB
730 This option supports all of the Octeon reference boards from Cavium
731 Networks. It builds a kernel that dynamically determines the Octeon
732 CPU type and supports all known board reference implementations.
733 Some of the supported boards are:
740 Say Y here for most Octeon reference boards.
743 bool "Netlogic XLR/XLS based systems"
746 select SYS_HAS_CPU_XLR
747 select SYS_SUPPORTS_SMP
750 select SYS_SUPPORTS_32BIT_KERNEL
751 select SYS_SUPPORTS_64BIT_KERNEL
752 select 64BIT_PHYS_ADDR
753 select SYS_SUPPORTS_BIG_ENDIAN
754 select SYS_SUPPORTS_HIGHMEM
756 select NR_CPUS_DEFAULT_32
760 select ZONE_DMA32 if 64BIT
762 select SYS_HAS_EARLY_PRINTK
763 select USB_ARCH_HAS_OHCI if USB_SUPPORT
764 select USB_ARCH_HAS_EHCI if USB_SUPPORT
765 select SYS_SUPPORTS_ZBOOT
766 select SYS_SUPPORTS_ZBOOT_UART16550
768 Support for systems based on Netlogic XLR and XLS processors.
769 Say Y here if you have a XLR or XLS based board.
772 bool "Netlogic XLP based systems"
775 select SYS_HAS_CPU_XLP
776 select SYS_SUPPORTS_SMP
778 select SYS_SUPPORTS_32BIT_KERNEL
779 select SYS_SUPPORTS_64BIT_KERNEL
780 select 64BIT_PHYS_ADDR
781 select SYS_SUPPORTS_BIG_ENDIAN
782 select SYS_SUPPORTS_LITTLE_ENDIAN
783 select SYS_SUPPORTS_HIGHMEM
785 select NR_CPUS_DEFAULT_32
789 select ZONE_DMA32 if 64BIT
791 select SYS_HAS_EARLY_PRINTK
793 select SYS_SUPPORTS_ZBOOT
794 select SYS_SUPPORTS_ZBOOT_UART16550
796 This board is based on Netlogic XLP Processor.
797 Say Y here if you have a XLP based board.
801 source "arch/mips/alchemy/Kconfig"
802 source "arch/mips/ath79/Kconfig"
803 source "arch/mips/bcm47xx/Kconfig"
804 source "arch/mips/bcm63xx/Kconfig"
805 source "arch/mips/jazz/Kconfig"
806 source "arch/mips/jz4740/Kconfig"
807 source "arch/mips/lantiq/Kconfig"
808 source "arch/mips/lasat/Kconfig"
809 source "arch/mips/pmcs-msp71xx/Kconfig"
810 source "arch/mips/ralink/Kconfig"
811 source "arch/mips/sgi-ip27/Kconfig"
812 source "arch/mips/sibyte/Kconfig"
813 source "arch/mips/txx9/Kconfig"
814 source "arch/mips/vr41xx/Kconfig"
815 source "arch/mips/cavium-octeon/Kconfig"
816 source "arch/mips/loongson/Kconfig"
817 source "arch/mips/loongson1/Kconfig"
818 source "arch/mips/netlogic/Kconfig"
822 config RWSEM_GENERIC_SPINLOCK
826 config RWSEM_XCHGADD_ALGORITHM
829 config ARCH_HAS_ILOG2_U32
833 config ARCH_HAS_ILOG2_U64
837 config GENERIC_HWEIGHT
841 config GENERIC_CALIBRATE_DELAY
845 config SCHED_OMIT_FRAME_POINTER
850 # Select some configuration options automatically based on user selections.
855 config ARCH_MAY_HAVE_PC_FDC
900 select ARCH_REQUIRE_GPIOLIB
906 config ARCH_DMA_ADDR_T_64BIT
907 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
909 config DMA_MAYBE_COHERENT
910 select DMA_NONCOHERENT
916 config DMA_NONCOHERENT
918 select NEED_DMA_MAP_STATE
920 config NEED_DMA_MAP_STATE
923 config SYS_HAS_EARLY_PRINTK
927 bool "Support for hot-pluggable CPUs"
928 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
930 Say Y here to allow turning CPUs off and on. CPUs can be
931 controlled through /sys/devices/system/cpu.
932 (Note: power management support will enable this option
933 automatically on SMP systems. )
934 Say N if you want to disable CPU hotplug.
936 config SYS_SUPPORTS_HOTPLUG_CPU
960 config GENERIC_ISA_DMA
962 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
965 config GENERIC_ISA_DMA_SUPPORT_BROKEN
967 select GENERIC_ISA_DMA
976 # Endianness selection. Sufficiently obscure so many users don't know what to
977 # answer,so we try hard to limit the available choices. Also the use of a
978 # choice statement should be more obvious to the user.
981 prompt "Endianness selection"
983 Some MIPS machines can be configured for either little or big endian
984 byte order. These modes require different kernels and a different
985 Linux distribution. In general there is one preferred byteorder for a
986 particular system but some systems are just as commonly used in the
987 one or the other endianness.
989 config CPU_BIG_ENDIAN
991 depends on SYS_SUPPORTS_BIG_ENDIAN
993 config CPU_LITTLE_ENDIAN
995 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1002 config SYS_SUPPORTS_APM_EMULATION
1005 config SYS_SUPPORTS_BIG_ENDIAN
1008 config SYS_SUPPORTS_LITTLE_ENDIAN
1011 config SYS_SUPPORTS_HUGETLBFS
1013 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1016 config MIPS_HUGE_TLB_SUPPORT
1017 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1041 config PCI_GT64XXX_PCI0
1044 config NO_EXCEPT_FILL
1051 select DMA_NONCOHERENT
1053 select SWAP_IO_SPACE
1054 select SYS_HAS_CPU_R5500
1055 select SYS_SUPPORTS_32BIT_KERNEL
1056 select SYS_SUPPORTS_64BIT_KERNEL
1057 select SYS_SUPPORTS_BIG_ENDIAN
1064 select DMA_NONCOHERENT
1065 select SYS_HAS_CPU_MIPS32_R2
1066 select SYS_SUPPORTS_32BIT_KERNEL
1067 select SYS_SUPPORTS_LITTLE_ENDIAN
1068 select SYS_SUPPORTS_BIG_ENDIAN
1069 select CPU_MIPSR2_IRQ_VI
1075 config SWAP_IO_SPACE
1078 config SGI_HAS_INDYDOG
1090 config SGI_HAS_ZILOG
1093 config SGI_HAS_I8042
1096 config DEFAULT_SGI_PARTITION
1108 config MIPS_L1_CACHE_SHIFT_4
1111 config MIPS_L1_CACHE_SHIFT_5
1114 config MIPS_L1_CACHE_SHIFT_6
1117 config MIPS_L1_CACHE_SHIFT_7
1120 config MIPS_L1_CACHE_SHIFT
1122 default "4" if MIPS_L1_CACHE_SHIFT_4
1123 default "5" if MIPS_L1_CACHE_SHIFT_5
1124 default "6" if MIPS_L1_CACHE_SHIFT_6
1125 default "7" if MIPS_L1_CACHE_SHIFT_7
1128 config HAVE_STD_PC_SERIAL_PORT
1132 bool "ARC console support"
1133 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1137 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1142 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1151 menu "CPU selection"
1157 config CPU_LOONGSON3
1158 bool "Loongson 3 CPU"
1159 depends on SYS_HAS_CPU_LOONGSON3
1160 select CPU_SUPPORTS_64BIT_KERNEL
1161 select CPU_SUPPORTS_HIGHMEM
1162 select CPU_SUPPORTS_HUGEPAGES
1163 select WEAK_ORDERING
1164 select WEAK_REORDERING_BEYOND_LLSC
1166 The Loongson 3 processor implements the MIPS64R2 instruction
1167 set with many extensions.
1169 config CPU_LOONGSON2E
1171 depends on SYS_HAS_CPU_LOONGSON2E
1172 select CPU_LOONGSON2
1174 The Loongson 2E processor implements the MIPS III instruction set
1175 with many extensions.
1177 It has an internal FPGA northbridge, which is compatible to
1180 config CPU_LOONGSON2F
1182 depends on SYS_HAS_CPU_LOONGSON2F
1183 select CPU_LOONGSON2
1184 select ARCH_REQUIRE_GPIOLIB
1186 The Loongson 2F processor implements the MIPS III instruction set
1187 with many extensions.
1189 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1190 have a similar programming interface with FPGA northbridge used in
1193 config CPU_LOONGSON1B
1195 depends on SYS_HAS_CPU_LOONGSON1B
1196 select CPU_LOONGSON1
1198 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1199 release 2 instruction set.
1201 config CPU_MIPS32_R1
1202 bool "MIPS32 Release 1"
1203 depends on SYS_HAS_CPU_MIPS32_R1
1204 select CPU_HAS_PREFETCH
1205 select CPU_SUPPORTS_32BIT_KERNEL
1206 select CPU_SUPPORTS_HIGHMEM
1208 Choose this option to build a kernel for release 1 or later of the
1209 MIPS32 architecture. Most modern embedded systems with a 32-bit
1210 MIPS processor are based on a MIPS32 processor. If you know the
1211 specific type of processor in your system, choose those that one
1212 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1213 Release 2 of the MIPS32 architecture is available since several
1214 years so chances are you even have a MIPS32 Release 2 processor
1215 in which case you should choose CPU_MIPS32_R2 instead for better
1218 config CPU_MIPS32_R2
1219 bool "MIPS32 Release 2"
1220 depends on SYS_HAS_CPU_MIPS32_R2
1221 select CPU_HAS_PREFETCH
1222 select CPU_SUPPORTS_32BIT_KERNEL
1223 select CPU_SUPPORTS_HIGHMEM
1224 select CPU_SUPPORTS_MSA
1227 Choose this option to build a kernel for release 2 or later of the
1228 MIPS32 architecture. Most modern embedded systems with a 32-bit
1229 MIPS processor are based on a MIPS32 processor. If you know the
1230 specific type of processor in your system, choose those that one
1231 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1233 config CPU_MIPS64_R1
1234 bool "MIPS64 Release 1"
1235 depends on SYS_HAS_CPU_MIPS64_R1
1236 select CPU_HAS_PREFETCH
1237 select CPU_SUPPORTS_32BIT_KERNEL
1238 select CPU_SUPPORTS_64BIT_KERNEL
1239 select CPU_SUPPORTS_HIGHMEM
1240 select CPU_SUPPORTS_HUGEPAGES
1242 Choose this option to build a kernel for release 1 or later of the
1243 MIPS64 architecture. Many modern embedded systems with a 64-bit
1244 MIPS processor are based on a MIPS64 processor. If you know the
1245 specific type of processor in your system, choose those that one
1246 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1247 Release 2 of the MIPS64 architecture is available since several
1248 years so chances are you even have a MIPS64 Release 2 processor
1249 in which case you should choose CPU_MIPS64_R2 instead for better
1252 config CPU_MIPS64_R2
1253 bool "MIPS64 Release 2"
1254 depends on SYS_HAS_CPU_MIPS64_R2
1255 select CPU_HAS_PREFETCH
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 select CPU_SUPPORTS_64BIT_KERNEL
1258 select CPU_SUPPORTS_HIGHMEM
1259 select CPU_SUPPORTS_HUGEPAGES
1260 select CPU_SUPPORTS_MSA
1262 Choose this option to build a kernel for release 2 or later of the
1263 MIPS64 architecture. Many modern embedded systems with a 64-bit
1264 MIPS processor are based on a MIPS64 processor. If you know the
1265 specific type of processor in your system, choose those that one
1266 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1270 depends on SYS_HAS_CPU_R3000
1272 select CPU_SUPPORTS_32BIT_KERNEL
1273 select CPU_SUPPORTS_HIGHMEM
1275 Please make sure to pick the right CPU type. Linux/MIPS is not
1276 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1277 *not* work on R4000 machines and vice versa. However, since most
1278 of the supported machines have an R4000 (or similar) CPU, R4x00
1279 might be a safe bet. If the resulting kernel does not work,
1280 try to recompile with R3000.
1284 depends on SYS_HAS_CPU_TX39XX
1285 select CPU_SUPPORTS_32BIT_KERNEL
1289 depends on SYS_HAS_CPU_VR41XX
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
1293 The options selects support for the NEC VR4100 series of processors.
1294 Only choose this option if you have one of these processors as a
1295 kernel built with this option will not run on any other type of
1296 processor or vice versa.
1300 depends on SYS_HAS_CPU_R4300
1301 select CPU_SUPPORTS_32BIT_KERNEL
1302 select CPU_SUPPORTS_64BIT_KERNEL
1304 MIPS Technologies R4300-series processors.
1308 depends on SYS_HAS_CPU_R4X00
1309 select CPU_SUPPORTS_32BIT_KERNEL
1310 select CPU_SUPPORTS_64BIT_KERNEL
1311 select CPU_SUPPORTS_HUGEPAGES
1313 MIPS Technologies R4000-series processors other than 4300, including
1314 the R4000, R4400, R4600, and 4700.
1318 depends on SYS_HAS_CPU_TX49XX
1319 select CPU_HAS_PREFETCH
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1322 select CPU_SUPPORTS_HUGEPAGES
1326 depends on SYS_HAS_CPU_R5000
1327 select CPU_SUPPORTS_32BIT_KERNEL
1328 select CPU_SUPPORTS_64BIT_KERNEL
1329 select CPU_SUPPORTS_HUGEPAGES
1331 MIPS Technologies R5000-series processors other than the Nevada.
1335 depends on SYS_HAS_CPU_R5432
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
1338 select CPU_SUPPORTS_HUGEPAGES
1342 depends on SYS_HAS_CPU_R5500
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1345 select CPU_SUPPORTS_HUGEPAGES
1347 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1352 depends on SYS_HAS_CPU_R6000
1353 select CPU_SUPPORTS_32BIT_KERNEL
1355 MIPS Technologies R6000 and R6000A series processors. Note these
1356 processors are extremely rare and the support for them is incomplete.
1360 depends on SYS_HAS_CPU_NEVADA
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1363 select CPU_SUPPORTS_HUGEPAGES
1365 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1369 depends on SYS_HAS_CPU_R8000
1370 select CPU_HAS_PREFETCH
1371 select CPU_SUPPORTS_64BIT_KERNEL
1373 MIPS Technologies R8000 processors. Note these processors are
1374 uncommon and the support for them is incomplete.
1378 depends on SYS_HAS_CPU_R10000
1379 select CPU_HAS_PREFETCH
1380 select CPU_SUPPORTS_32BIT_KERNEL
1381 select CPU_SUPPORTS_64BIT_KERNEL
1382 select CPU_SUPPORTS_HIGHMEM
1383 select CPU_SUPPORTS_HUGEPAGES
1385 MIPS Technologies R10000-series processors.
1389 depends on SYS_HAS_CPU_RM7000
1390 select CPU_HAS_PREFETCH
1391 select CPU_SUPPORTS_32BIT_KERNEL
1392 select CPU_SUPPORTS_64BIT_KERNEL
1393 select CPU_SUPPORTS_HIGHMEM
1394 select CPU_SUPPORTS_HUGEPAGES
1398 depends on SYS_HAS_CPU_SB1
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HIGHMEM
1402 select CPU_SUPPORTS_HUGEPAGES
1403 select WEAK_ORDERING
1405 config CPU_CAVIUM_OCTEON
1406 bool "Cavium Octeon processor"
1407 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1408 select ARCH_SPARSEMEM_ENABLE
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_64BIT_KERNEL
1411 select SYS_SUPPORTS_SMP
1412 select NR_CPUS_DEFAULT_16
1413 select WEAK_ORDERING
1414 select CPU_SUPPORTS_HIGHMEM
1415 select CPU_SUPPORTS_HUGEPAGES
1418 select USB_EHCI_BIG_ENDIAN_MMIO
1419 select MIPS_L1_CACHE_SHIFT_7
1421 The Cavium Octeon processor is a highly integrated chip containing
1422 many ethernet hardware widgets for networking tasks. The processor
1423 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1424 Full details can be found at http://www.caviumnetworks.com.
1427 bool "Broadcom BMIPS"
1428 depends on SYS_HAS_CPU_BMIPS
1430 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1431 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1432 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1433 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select DMA_NONCOHERENT
1437 select SWAP_IO_SPACE
1438 select WEAK_ORDERING
1439 select CPU_SUPPORTS_HIGHMEM
1440 select CPU_HAS_PREFETCH
1442 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1445 bool "Netlogic XLR SoC"
1446 depends on SYS_HAS_CPU_XLR
1447 select CPU_SUPPORTS_32BIT_KERNEL
1448 select CPU_SUPPORTS_64BIT_KERNEL
1449 select CPU_SUPPORTS_HIGHMEM
1450 select CPU_SUPPORTS_HUGEPAGES
1451 select WEAK_ORDERING
1452 select WEAK_REORDERING_BEYOND_LLSC
1454 Netlogic Microsystems XLR/XLS processors.
1457 bool "Netlogic XLP SoC"
1458 depends on SYS_HAS_CPU_XLP
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1461 select CPU_SUPPORTS_HIGHMEM
1462 select WEAK_ORDERING
1463 select WEAK_REORDERING_BEYOND_LLSC
1464 select CPU_HAS_PREFETCH
1467 Netlogic Microsystems XLP processors.
1470 config CPU_MIPS32_3_5_FEATURES
1471 bool "MIPS32 Release 3.5 Features"
1472 depends on SYS_HAS_CPU_MIPS32_R3_5
1473 depends on CPU_MIPS32_R2
1475 Choose this option to build a kernel for release 2 or later of the
1476 MIPS32 architecture including features from the 3.5 release such as
1477 support for Enhanced Virtual Addressing (EVA).
1479 config CPU_MIPS32_3_5_EVA
1480 bool "Enhanced Virtual Addressing (EVA)"
1481 depends on CPU_MIPS32_3_5_FEATURES
1485 Choose this option if you want to enable the Enhanced Virtual
1486 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1487 One of its primary benefits is an increase in the maximum size
1488 of lowmem (up to 3GB). If unsure, say 'N' here.
1491 config CPU_NOP_WORKAROUNDS
1494 config CPU_JUMP_WORKAROUNDS
1497 config CPU_LOONGSON2F_WORKAROUNDS
1498 bool "Loongson 2F Workarounds"
1500 select CPU_NOP_WORKAROUNDS
1501 select CPU_JUMP_WORKAROUNDS
1503 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1504 require workarounds. Without workarounds the system may hang
1505 unexpectedly. For more information please refer to the gas
1506 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1508 Loongson 2F03 and later have fixed these issues and no workarounds
1509 are needed. The workarounds have no significant side effect on them
1510 but may decrease the performance of the system so this option should
1511 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1514 If unsure, please say Y.
1515 endif # CPU_LOONGSON2F
1517 config SYS_SUPPORTS_ZBOOT
1519 select HAVE_KERNEL_GZIP
1520 select HAVE_KERNEL_BZIP2
1521 select HAVE_KERNEL_LZ4
1522 select HAVE_KERNEL_LZMA
1523 select HAVE_KERNEL_LZO
1524 select HAVE_KERNEL_XZ
1526 config SYS_SUPPORTS_ZBOOT_UART16550
1528 select SYS_SUPPORTS_ZBOOT
1530 config CPU_LOONGSON2
1532 select CPU_SUPPORTS_32BIT_KERNEL
1533 select CPU_SUPPORTS_64BIT_KERNEL
1534 select CPU_SUPPORTS_HIGHMEM
1535 select CPU_SUPPORTS_HUGEPAGES
1537 config CPU_LOONGSON1
1541 select CPU_HAS_PREFETCH
1542 select CPU_SUPPORTS_32BIT_KERNEL
1543 select CPU_SUPPORTS_HIGHMEM
1545 config CPU_BMIPS32_3300
1546 select SMP_UP if SMP
1549 config CPU_BMIPS4350
1551 select SYS_SUPPORTS_SMP
1552 select SYS_SUPPORTS_HOTPLUG_CPU
1554 config CPU_BMIPS4380
1556 select SYS_SUPPORTS_SMP
1557 select SYS_SUPPORTS_HOTPLUG_CPU
1559 config CPU_BMIPS5000
1561 select MIPS_CPU_SCACHE
1562 select SYS_SUPPORTS_SMP
1563 select SYS_SUPPORTS_HOTPLUG_CPU
1565 config SYS_HAS_CPU_LOONGSON3
1567 select CPU_SUPPORTS_CPUFREQ
1569 config SYS_HAS_CPU_LOONGSON2E
1572 config SYS_HAS_CPU_LOONGSON2F
1574 select CPU_SUPPORTS_CPUFREQ
1575 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1576 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1578 config SYS_HAS_CPU_LOONGSON1B
1581 config SYS_HAS_CPU_MIPS32_R1
1584 config SYS_HAS_CPU_MIPS32_R2
1587 config SYS_HAS_CPU_MIPS32_R3_5
1590 config SYS_HAS_CPU_MIPS64_R1
1593 config SYS_HAS_CPU_MIPS64_R2
1596 config SYS_HAS_CPU_R3000
1599 config SYS_HAS_CPU_TX39XX
1602 config SYS_HAS_CPU_VR41XX
1605 config SYS_HAS_CPU_R4300
1608 config SYS_HAS_CPU_R4X00
1611 config SYS_HAS_CPU_TX49XX
1614 config SYS_HAS_CPU_R5000
1617 config SYS_HAS_CPU_R5432
1620 config SYS_HAS_CPU_R5500
1623 config SYS_HAS_CPU_R6000
1626 config SYS_HAS_CPU_NEVADA
1629 config SYS_HAS_CPU_R8000
1632 config SYS_HAS_CPU_R10000
1635 config SYS_HAS_CPU_RM7000
1638 config SYS_HAS_CPU_SB1
1641 config SYS_HAS_CPU_CAVIUM_OCTEON
1644 config SYS_HAS_CPU_BMIPS
1647 config SYS_HAS_CPU_BMIPS32_3300
1649 select SYS_HAS_CPU_BMIPS
1651 config SYS_HAS_CPU_BMIPS4350
1653 select SYS_HAS_CPU_BMIPS
1655 config SYS_HAS_CPU_BMIPS4380
1657 select SYS_HAS_CPU_BMIPS
1659 config SYS_HAS_CPU_BMIPS5000
1661 select SYS_HAS_CPU_BMIPS
1663 config SYS_HAS_CPU_XLR
1666 config SYS_HAS_CPU_XLP
1670 # CPU may reorder R->R, R->W, W->R, W->W
1671 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1673 config WEAK_ORDERING
1677 # CPU may reorder reads and writes beyond LL/SC
1678 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1680 config WEAK_REORDERING_BEYOND_LLSC
1685 # These two indicate any level of the MIPS32 and MIPS64 architecture
1689 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1693 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1696 # These two indicate the revision of the architecture, either Release 1 or Release 2
1700 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1704 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1709 config SYS_SUPPORTS_32BIT_KERNEL
1711 config SYS_SUPPORTS_64BIT_KERNEL
1713 config CPU_SUPPORTS_32BIT_KERNEL
1715 config CPU_SUPPORTS_64BIT_KERNEL
1717 config CPU_SUPPORTS_CPUFREQ
1719 config CPU_SUPPORTS_ADDRWINCFG
1721 config CPU_SUPPORTS_HUGEPAGES
1723 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1725 config MIPS_PGD_C0_CONTEXT
1727 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1730 # Set to y for ptrace access to watch registers.
1732 config HARDWARE_WATCHPOINTS
1734 default y if CPU_MIPSR1 || CPU_MIPSR2
1739 prompt "Kernel code model"
1741 You should only select this option if you have a workload that
1742 actually benefits from 64-bit processing or if your machine has
1743 large memory. You will only be presented a single option in this
1744 menu if your system does not support both 32-bit and 64-bit kernels.
1747 bool "32-bit kernel"
1748 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1751 Select this option if you want to build a 32-bit kernel.
1753 bool "64-bit kernel"
1754 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1756 Select this option if you want to build a 64-bit kernel.
1761 bool "KVM Guest Kernel"
1762 depends on BROKEN_ON_SMP
1764 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1766 config KVM_HOST_FREQ
1767 int "KVM Host Processor Frequency (MHz)"
1768 depends on KVM_GUEST
1771 Select this option if building a guest kernel for KVM to skip
1772 RTC emulation when determining guest CPU Frequency. Instead, the guest
1773 processor frequency is automatically derived from the host frequency.
1776 prompt "Kernel page size"
1777 default PAGE_SIZE_4KB
1779 config PAGE_SIZE_4KB
1781 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1783 This option select the standard 4kB Linux page size. On some
1784 R3000-family processors this is the only available page size. Using
1785 4kB page size will minimize memory consumption and is therefore
1786 recommended for low memory systems.
1788 config PAGE_SIZE_8KB
1790 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1792 Using 8kB page size will result in higher performance kernel at
1793 the price of higher memory consumption. This option is available
1794 only on R8000 and cnMIPS processors. Note that you will need a
1795 suitable Linux distribution to support this.
1797 config PAGE_SIZE_16KB
1799 depends on !CPU_R3000 && !CPU_TX39XX
1801 Using 16kB page size will result in higher performance kernel at
1802 the price of higher memory consumption. This option is available on
1803 all non-R3000 family processors. Note that you will need a suitable
1804 Linux distribution to support this.
1806 config PAGE_SIZE_32KB
1808 depends on CPU_CAVIUM_OCTEON
1810 Using 32kB page size will result in higher performance kernel at
1811 the price of higher memory consumption. This option is available
1812 only on cnMIPS cores. Note that you will need a suitable Linux
1813 distribution to support this.
1815 config PAGE_SIZE_64KB
1817 depends on !CPU_R3000 && !CPU_TX39XX
1819 Using 64kB page size will result in higher performance kernel at
1820 the price of higher memory consumption. This option is available on
1821 all non-R3000 family processor. Not that at the time of this
1822 writing this option is still high experimental.
1826 config FORCE_MAX_ZONEORDER
1827 int "Maximum zone order"
1828 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1829 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1830 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1831 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1832 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1833 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1837 The kernel memory allocator divides physically contiguous memory
1838 blocks into "zones", where each zone is a power of two number of
1839 pages. This option selects the largest power of two that the kernel
1840 keeps in the memory allocator. If you need to allocate very large
1841 blocks of physically contiguous memory, then you may need to
1842 increase this value.
1844 This config option is actually maximum order plus one. For example,
1845 a value of 11 means that the largest free memory block is 2^10 pages.
1847 The page size is not necessarily 4KB. Keep this in mind
1848 when choosing a value for this option.
1851 bool "Use GIC global counter for clock events"
1852 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1854 Use the GIC global counter for the clock events. The R4K clock
1855 event driver is always present, so if the platform ends up not
1856 detecting a GIC, it will fall back to the R4K timer for the
1857 generation of clock events.
1862 config IP22_CPU_SCACHE
1867 # Support for a MIPS32 / MIPS64 style S-caches
1869 config MIPS_CPU_SCACHE
1872 select MIPS_L1_CACHE_SHIFT_6
1874 config R5000_CPU_SCACHE
1878 config RM7000_CPU_SCACHE
1882 config SIBYTE_DMA_PAGEOPS
1883 bool "Use DMA to clear/copy pages"
1886 Instead of using the CPU to zero and copy pages, use a Data Mover
1887 channel. These DMA channels are otherwise unused by the standard
1888 SiByte Linux port. Seems to give a small performance benefit.
1890 config CPU_HAS_PREFETCH
1893 config CPU_GENERIC_DUMP_TLB
1895 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1899 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1901 config CPU_R4K_CACHE_TLB
1903 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1906 prompt "MIPS MT options"
1908 config MIPS_MT_DISABLED
1909 bool "Disable multithreading support"
1911 Use this option if your platform does not support the MT ASE
1912 which is hardware multithreading support. On systems without
1913 an MT-enabled processor, this will be the only option that is
1914 available in this menu.
1917 bool "Use 1 TC on each available VPE for SMP"
1918 depends on SYS_SUPPORTS_MULTITHREADING
1919 select CPU_MIPSR2_IRQ_VI
1920 select CPU_MIPSR2_IRQ_EI
1926 select SYS_SUPPORTS_SMP
1927 select SYS_SUPPORTS_SCHED_SMT
1928 select MIPS_PERF_SHARED_TC_COUNTERS
1930 This is a kernel model which is known as SMVP. This is supported
1931 on cores with the MT ASE and uses the available VPEs to implement
1932 virtual processors which supports SMP. This is equivalent to the
1933 Intel Hyperthreading feature. For further information go to
1934 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1937 bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
1938 depends on CPU_MIPS32_R2
1939 depends on SYS_SUPPORTS_MULTITHREADING
1940 depends on !MIPS_CPS
1941 select CPU_MIPSR2_IRQ_VI
1942 select CPU_MIPSR2_IRQ_EI
1946 select SYS_SUPPORTS_SMP
1947 select NR_CPUS_DEFAULT_8
1949 This is a kernel model which is known as SMTC. This is
1950 supported on cores with the MT ASE and presents all TCs
1951 available on all VPEs to support SMP. For further
1952 information see <http://www.linux-mips.org/wiki/34K#SMTC>.
1960 bool "SMT (multithreading) scheduler support"
1961 depends on SYS_SUPPORTS_SCHED_SMT
1964 SMT scheduler support improves the CPU scheduler's decision making
1965 when dealing with MIPS MT enabled cores at a cost of slightly
1966 increased overhead in some places. If unsure say N here.
1968 config SYS_SUPPORTS_SCHED_SMT
1971 config SYS_SUPPORTS_MULTITHREADING
1974 config MIPS_MT_FPAFF
1975 bool "Dynamic FPU affinity for FP-intensive threads"
1977 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1979 config MIPS_VPE_LOADER
1980 bool "VPE loader support."
1981 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1982 select CPU_MIPSR2_IRQ_VI
1983 select CPU_MIPSR2_IRQ_EI
1986 Includes a loader for loading an elf relocatable object
1987 onto another VPE and running it.
1989 config MIPS_VPE_LOADER_CMP
1992 depends on MIPS_VPE_LOADER && MIPS_CMP
1994 config MIPS_VPE_LOADER_MT
1997 depends on MIPS_VPE_LOADER && !MIPS_CMP
1999 config MIPS_MT_SMTC_IM_BACKSTOP
2000 bool "Use per-TC register bits as backstop for inhibited IM bits"
2001 depends on MIPS_MT_SMTC
2004 To support multiple TC microthreads acting as "CPUs" within
2005 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2006 during interrupt handling. To support legacy drivers and interrupt
2007 controller management code, SMTC has a "backstop" to track and
2008 if necessary restore the interrupt mask. This has some performance
2009 impact on interrupt service overhead.
2011 config MIPS_MT_SMTC_IRQAFF
2012 bool "Support IRQ affinity API"
2013 depends on MIPS_MT_SMTC
2016 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2017 for SMTC Linux kernel. Requires platform support, of which
2018 an example can be found in the MIPS kernel i8259 and Malta
2019 platform code. Adds some overhead to interrupt dispatch, and
2020 should be used only if you know what you are doing.
2022 config MIPS_VPE_LOADER_TOM
2023 bool "Load VPE program into memory hidden from linux"
2024 depends on MIPS_VPE_LOADER
2027 The loader can use memory that is present but has been hidden from
2028 Linux using the kernel command line option "mem=xxMB". It's up to
2029 you to ensure the amount you put in the option and the space your
2030 program requires is less or equal to the amount physically present.
2032 config MIPS_VPE_APSP_API
2033 bool "Enable support for AP/SP API (RTLX)"
2034 depends on MIPS_VPE_LOADER
2037 config MIPS_VPE_APSP_API_CMP
2040 depends on MIPS_VPE_APSP_API && MIPS_CMP
2042 config MIPS_VPE_APSP_API_MT
2045 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2048 bool "MIPS CMP framework support (DEPRECATED)"
2049 depends on SYS_SUPPORTS_MIPS_CMP && !MIPS_MT_SMTC
2052 select WEAK_ORDERING
2055 Select this if you are using a bootloader which implements the "CMP
2056 framework" protocol (ie. YAMON) and want your kernel to make use of
2057 its ability to start secondary CPUs.
2059 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2063 bool "MIPS Coherent Processing System support"
2064 depends on SYS_SUPPORTS_MIPS_CPS
2069 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2070 select SYS_SUPPORTS_SMP
2071 select WEAK_ORDERING
2073 Select this if you wish to run an SMP kernel across multiple cores
2074 within a MIPS Coherent Processing System. When this option is
2075 enabled the kernel will probe for other cores and boot them with
2076 no external assistance. It is safe to enable this when hardware
2077 support is unavailable.
2088 config SB1_PASS_1_WORKAROUNDS
2090 depends on CPU_SB1_PASS_1
2093 config SB1_PASS_2_WORKAROUNDS
2095 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2098 config SB1_PASS_2_1_WORKAROUNDS
2100 depends on CPU_SB1 && CPU_SB1_PASS_2
2104 config 64BIT_PHYS_ADDR
2107 config ARCH_PHYS_ADDR_T_64BIT
2108 def_bool 64BIT_PHYS_ADDR
2110 config CPU_HAS_SMARTMIPS
2111 depends on SYS_SUPPORTS_SMARTMIPS
2112 bool "Support for the SmartMIPS ASE"
2114 SmartMIPS is a extension of the MIPS32 architecture aimed at
2115 increased security at both hardware and software level for
2116 smartcards. Enabling this option will allow proper use of the
2117 SmartMIPS instructions by Linux applications. However a kernel with
2118 this option will not work on a MIPS core without SmartMIPS core. If
2119 you don't know you probably don't have SmartMIPS and should say N
2122 config CPU_MICROMIPS
2123 depends on SYS_SUPPORTS_MICROMIPS
2124 bool "Build kernel using microMIPS ISA"
2126 When this option is enabled the kernel will be built using the
2130 bool "Support for the MIPS SIMD Architecture"
2131 depends on CPU_SUPPORTS_MSA
2134 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2135 and a set of SIMD instructions to operate on them. When this option
2136 is enabled the kernel will support allocating & switching MSA
2137 vector register contexts. If you know that your kernel will only be
2138 running on CPUs which do not support MSA or that your userland will
2139 not be making use of it then you may wish to say N here to reduce
2140 the size & complexity of your kernel.
2151 # Vectored interrupt mode is an R2 feature
2153 config CPU_MIPSR2_IRQ_VI
2157 # Extended interrupt mode is an R2 feature
2159 config CPU_MIPSR2_IRQ_EI
2164 depends on !CPU_R3000
2170 config CPU_DADDI_WORKAROUNDS
2173 config CPU_R4000_WORKAROUNDS
2175 select CPU_R4400_WORKAROUNDS
2177 config CPU_R4400_WORKAROUNDS
2181 # - Highmem only makes sense for the 32-bit kernel.
2182 # - The current highmem code will only work properly on physically indexed
2183 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2184 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2185 # moment we protect the user and offer the highmem option only on machines
2186 # where it's known to be safe. This will not offer highmem on a few systems
2187 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2188 # indexed CPUs but we're playing safe.
2189 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2190 # know they might have memory configurations that could make use of highmem
2194 bool "High Memory Support"
2195 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2197 config CPU_SUPPORTS_HIGHMEM
2200 config SYS_SUPPORTS_HIGHMEM
2203 config SYS_SUPPORTS_SMARTMIPS
2206 config SYS_SUPPORTS_MICROMIPS
2209 config CPU_SUPPORTS_MSA
2212 config ARCH_FLATMEM_ENABLE
2214 depends on !NUMA && !CPU_LOONGSON2
2216 config ARCH_DISCONTIGMEM_ENABLE
2218 default y if SGI_IP27
2220 Say Y to support efficient handling of discontiguous physical memory,
2221 for architectures which are either NUMA (Non-Uniform Memory Access)
2222 or have huge holes in the physical address space for other reasons.
2223 See <file:Documentation/vm/numa> for more.
2225 config ARCH_SPARSEMEM_ENABLE
2227 select SPARSEMEM_STATIC
2231 depends on SYS_SUPPORTS_NUMA
2233 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2234 Access). This option improves performance on systems with more
2235 than two nodes; on two node systems it is generally better to
2236 leave it disabled; on single node systems disable this option
2239 config SYS_SUPPORTS_NUMA
2245 depends on NEED_MULTIPLE_NODES
2247 config HW_PERF_EVENTS
2248 bool "Enable hardware performance counter support for perf events"
2249 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2252 Enable hardware performance counter support for perf events. If
2253 disabled, perf events will use software events only.
2258 bool "Multi-Processing support"
2259 depends on SYS_SUPPORTS_SMP
2261 This enables support for systems with more than one CPU. If you have
2262 a system with only one CPU, say N. If you have a system with more
2263 than one CPU, say Y.
2265 If you say N here, the kernel will run on uni- and multiprocessor
2266 machines, but will use only one CPU of a multiprocessor machine. If
2267 you say Y here, the kernel will run on many, but not all,
2268 uniprocessor machines. On a uniprocessor machine, the kernel
2269 will run faster if you say N here.
2271 People using multiprocessor machines who say Y here should also say
2272 Y to "Enhanced Real Time Clock Support", below.
2274 See also the SMP-HOWTO available at
2275 <http://www.tldp.org/docs.html#howto>.
2277 If you don't know what to do here, say N.
2282 config SYS_SUPPORTS_MIPS_CMP
2285 config SYS_SUPPORTS_MIPS_CPS
2288 config SYS_SUPPORTS_SMP
2291 config NR_CPUS_DEFAULT_4
2294 config NR_CPUS_DEFAULT_8
2297 config NR_CPUS_DEFAULT_16
2300 config NR_CPUS_DEFAULT_32
2303 config NR_CPUS_DEFAULT_64
2307 int "Maximum number of CPUs (2-64)"
2310 default "4" if NR_CPUS_DEFAULT_4
2311 default "8" if NR_CPUS_DEFAULT_8
2312 default "16" if NR_CPUS_DEFAULT_16
2313 default "32" if NR_CPUS_DEFAULT_32
2314 default "64" if NR_CPUS_DEFAULT_64
2316 This allows you to specify the maximum number of CPUs which this
2317 kernel will support. The maximum supported value is 32 for 32-bit
2318 kernel and 64 for 64-bit kernels; the minimum value which makes
2319 sense is 1 for Qemu (useful only for kernel debugging purposes)
2320 and 2 for all others.
2322 This is purely to save memory - each supported CPU adds
2323 approximately eight kilobytes to the kernel image. For best
2324 performance should round up your number of processors to the next
2327 config MIPS_PERF_SHARED_TC_COUNTERS
2331 # Timer Interrupt Frequency Configuration
2335 prompt "Timer frequency"
2338 Allows the configuration of the timer frequency.
2341 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2344 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2347 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2350 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2353 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2356 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2359 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2363 config SYS_SUPPORTS_48HZ
2366 config SYS_SUPPORTS_100HZ
2369 config SYS_SUPPORTS_128HZ
2372 config SYS_SUPPORTS_250HZ
2375 config SYS_SUPPORTS_256HZ
2378 config SYS_SUPPORTS_1000HZ
2381 config SYS_SUPPORTS_1024HZ
2384 config SYS_SUPPORTS_ARBIT_HZ
2386 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2387 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2388 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2389 !SYS_SUPPORTS_1024HZ
2394 default 100 if HZ_100
2395 default 128 if HZ_128
2396 default 250 if HZ_250
2397 default 256 if HZ_256
2398 default 1000 if HZ_1000
2399 default 1024 if HZ_1024
2401 source "kernel/Kconfig.preempt"
2404 bool "Kexec system call"
2406 kexec is a system call that implements the ability to shutdown your
2407 current kernel, and to start another kernel. It is like a reboot
2408 but it is independent of the system firmware. And like a reboot
2409 you can start any kernel with it, not just Linux.
2411 The name comes from the similarity to the exec system call.
2413 It is an ongoing process to be certain the hardware in a machine
2414 is properly shutdown, so do not be surprised if this code does not
2415 initially work for you. As of this writing the exact hardware
2416 interface is strongly in flux, so no good recommendation can be
2420 bool "Kernel crash dumps"
2422 Generate crash dump after being started by kexec.
2423 This should be normally only set in special crash dump kernels
2424 which are loaded in the main kernel with kexec-tools into
2425 a specially reserved region and then later executed after
2426 a crash by kdump/kexec. The crash dump kernel must be compiled
2427 to a memory address not used by the main kernel or firmware using
2430 config PHYSICAL_START
2431 hex "Physical address where the kernel is loaded"
2432 default "0xffffffff84000000" if 64BIT
2433 default "0x84000000" if 32BIT
2434 depends on CRASH_DUMP
2436 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2437 If you plan to use kernel for capturing the crash dump change
2438 this value to start of the reserved region (the "X" value as
2439 specified in the "crashkernel=YM@XM" command line boot parameter
2440 passed to the panic-ed kernel).
2443 bool "Enable seccomp to safely compute untrusted bytecode"
2447 This kernel feature is useful for number crunching applications
2448 that may need to compute untrusted bytecode during their
2449 execution. By using pipes or other transports made available to
2450 the process as file descriptors supporting the read/write
2451 syscalls, it's possible to isolate those applications in
2452 their own address space using seccomp. Once seccomp is
2453 enabled via /proc/<pid>/seccomp, it cannot be disabled
2454 and the task is only allowed to execute a few safe syscalls
2455 defined by each seccomp mode.
2457 If unsure, say Y. Only embedded should say N here.
2459 config MIPS_O32_FP64_SUPPORT
2460 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2461 depends on 32BIT || MIPS32_O32
2463 When this is enabled, the kernel will support use of 64-bit floating
2464 point registers with binaries using the O32 ABI along with the
2465 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2466 32-bit MIPS systems this support is at the cost of increasing the
2467 size and complexity of the compiled FPU emulator. Thus if you are
2468 running a MIPS32 system and know that none of your userland binaries
2469 will require 64-bit floating point, you may wish to reduce the size
2470 of your kernel & potentially improve FP emulation performance by
2473 Although binutils currently supports use of this flag the details
2474 concerning its effect upon the O32 ABI in userland are still being
2475 worked on. In order to avoid userland becoming dependant upon current
2476 behaviour before the details have been finalised, this option should
2477 be considered experimental and only enabled by those working upon
2485 select OF_EARLY_FLATTREE
2490 config LOCKDEP_SUPPORT
2494 config STACKTRACE_SUPPORT
2498 source "init/Kconfig"
2500 source "kernel/Kconfig.freezer"
2502 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2510 bool "Support for PCI controller"
2511 depends on HW_HAS_PCI
2513 select NO_GENERIC_PCI_IOPORT_MAP
2515 Find out whether you have a PCI motherboard. PCI is the name of a
2516 bus system, i.e. the way the CPU talks to the other stuff inside
2517 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2521 bool "Support for HT-linked PCI"
2523 depends on CPU_LOONGSON3
2527 Loongson family machines use Hyper-Transport bus for inter-core
2528 connection and device connection. The PCI bus is a subordinate
2529 linked at HT. Choose Y for Loongson-3 based machines.
2534 source "drivers/pci/Kconfig"
2536 source "drivers/pci/pcie/Kconfig"
2539 # ISA support is now enabled via select. Too many systems still have the one
2540 # or other ISA chip on the board that users don't know about so don't expect
2541 # users to choose the right thing ...
2548 depends on HW_HAS_EISA
2550 select GENERIC_ISA_DMA
2552 The Extended Industry Standard Architecture (EISA) bus was
2553 developed as an open alternative to the IBM MicroChannel bus.
2555 The EISA bus provided some of the features of the IBM MicroChannel
2556 bus while maintaining backward compatibility with cards made for
2557 the older ISA bus. The EISA bus saw limited use between 1988 and
2558 1995 when it was made obsolete by the PCI bus.
2560 Say Y here if you are building a kernel for an EISA-based machine.
2564 source "drivers/eisa/Kconfig"
2567 bool "TURBOchannel support"
2568 depends on MACH_DECSTATION
2570 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2571 processors. TURBOchannel programming specifications are available
2573 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2575 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2576 Linux driver support status is documented at:
2577 <http://www.linux-mips.org/wiki/DECstation>
2587 select MIPS_EXTERNAL_TIMER
2595 source "drivers/pcmcia/Kconfig"
2597 source "drivers/pci/hotplug/Kconfig"
2600 tristate "RapidIO support"
2604 If you say Y here, the kernel will include drivers and
2605 infrastructure code to support RapidIO interconnect devices.
2607 source "drivers/rapidio/Kconfig"
2611 menu "Executable file formats"
2613 source "fs/Kconfig.binfmt"
2618 config MIPS32_COMPAT
2619 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2622 Select this option if you want Linux/MIPS 32-bit binary
2623 compatibility. Since all software available for Linux/MIPS is
2624 currently 32-bit you should say Y here.
2628 depends on MIPS32_COMPAT
2629 select ARCH_WANT_OLD_COMPAT_IPC
2632 config SYSVIPC_COMPAT
2634 depends on COMPAT && SYSVIPC
2638 bool "Kernel support for o32 binaries"
2639 depends on MIPS32_COMPAT
2641 Select this option if you want to run o32 binaries. These are pure
2642 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2643 existing binaries are in this format.
2648 bool "Kernel support for n32 binaries"
2649 depends on MIPS32_COMPAT
2651 Select this option if you want to run n32 binaries. These are
2652 64-bit binaries using 32-bit quantities for addressing and certain
2653 data that would normally be 64-bit. They are used in special
2660 default y if MIPS32_O32 || MIPS32_N32
2664 menu "Power management options"
2666 config ARCH_HIBERNATION_POSSIBLE
2668 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2670 config ARCH_SUSPEND_POSSIBLE
2672 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2674 source "kernel/power/Kconfig"
2678 config MIPS_EXTERNAL_TIMER
2681 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2682 menu "CPU Power Management"
2683 source "drivers/cpufreq/Kconfig"
2687 source "net/Kconfig"
2689 source "drivers/Kconfig"
2691 source "drivers/firmware/Kconfig"
2695 source "arch/mips/Kconfig.debug"
2697 source "security/Kconfig"
2699 source "crypto/Kconfig"
2701 source "lib/Kconfig"
2703 source "arch/mips/kvm/Kconfig"