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
74 bool "Texas Instruments AR7"
76 select DMA_NONCOHERENT
82 select SYS_HAS_CPU_MIPS32_R1
83 select SYS_HAS_EARLY_PRINTK
84 select SYS_SUPPORTS_32BIT_KERNEL
85 select SYS_SUPPORTS_LITTLE_ENDIAN
86 select SYS_SUPPORTS_MIPS16
87 select SYS_SUPPORTS_ZBOOT_UART16550
88 select ARCH_REQUIRE_GPIOLIB
92 Support for the Texas Instruments AR7 System-on-a-Chip
93 family: TNETD7100, 7200 and 7300.
96 bool "Atheros AR71XX/AR724X/AR913X based boards"
97 select ARCH_REQUIRE_GPIOLIB
101 select DMA_NONCOHERENT
106 select SYS_HAS_CPU_MIPS32_R2
107 select SYS_HAS_EARLY_PRINTK
108 select SYS_SUPPORTS_32BIT_KERNEL
109 select SYS_SUPPORTS_BIG_ENDIAN
110 select SYS_SUPPORTS_MIPS16
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_SUPPORTS_MIPS16
128 select SYS_HAS_EARLY_PRINTK
129 select USE_GENERIC_EARLY_PRINTK_8250
131 Support for BCM47XX based boards
134 bool "Broadcom BCM63XX based boards"
138 select DMA_NONCOHERENT
140 select SYS_SUPPORTS_32BIT_KERNEL
141 select SYS_SUPPORTS_BIG_ENDIAN
142 select SYS_HAS_EARLY_PRINTK
144 select ARCH_REQUIRE_GPIOLIB
146 select MIPS_L1_CACHE_SHIFT_4
148 Support for BCM63XX based boards
155 select DMA_NONCOHERENT
161 select PCI_GT64XXX_PCI0
163 select SYS_HAS_CPU_NEVADA
164 select SYS_HAS_EARLY_PRINTK
165 select SYS_SUPPORTS_32BIT_KERNEL
166 select SYS_SUPPORTS_64BIT_KERNEL
167 select SYS_SUPPORTS_LITTLE_ENDIAN
168 select USE_GENERIC_EARLY_PRINTK_8250
170 config MACH_DECSTATION
177 select CPU_DADDI_WORKAROUNDS if 64BIT
178 select CPU_R4000_WORKAROUNDS if 64BIT
179 select CPU_R4400_WORKAROUNDS if 64BIT
180 select DMA_NONCOHERENT
183 select SYS_HAS_CPU_R3000
184 select SYS_HAS_CPU_R4X00
185 select SYS_SUPPORTS_32BIT_KERNEL
186 select SYS_SUPPORTS_64BIT_KERNEL
187 select SYS_SUPPORTS_LITTLE_ENDIAN
188 select SYS_SUPPORTS_128HZ
189 select SYS_SUPPORTS_256HZ
190 select SYS_SUPPORTS_1024HZ
191 select MIPS_L1_CACHE_SHIFT_4
193 This enables support for DEC's MIPS based workstations. For details
194 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
195 DECstation porting pages on <http://decstation.unix-ag.org/>.
197 If you have one of the following DECstation Models you definitely
198 want to choose R4xx0 for the CPU Type:
205 otherwise choose R3000.
208 bool "Jazz family of machines"
211 select ARCH_MAY_HAVE_PC_FDC
214 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
215 select GENERIC_ISA_DMA
216 select HAVE_PCSPKR_PLATFORM
221 select SYS_HAS_CPU_R4X00
222 select SYS_SUPPORTS_32BIT_KERNEL
223 select SYS_SUPPORTS_64BIT_KERNEL
224 select SYS_SUPPORTS_100HZ
226 This a family of machines based on the MIPS R4030 chipset which was
227 used by several vendors to build RISC/os and Windows NT workstations.
228 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
229 Olivetti M700-10 workstations.
232 bool "Ingenic JZ4740 based machines"
233 select SYS_HAS_CPU_MIPS32_R1
234 select SYS_SUPPORTS_32BIT_KERNEL
235 select SYS_SUPPORTS_LITTLE_ENDIAN
236 select SYS_SUPPORTS_ZBOOT_UART16550
237 select DMA_NONCOHERENT
239 select ARCH_REQUIRE_GPIOLIB
240 select SYS_HAS_EARLY_PRINTK
242 select GENERIC_IRQ_CHIP
245 bool "Lantiq based platforms"
246 select DMA_NONCOHERENT
250 select SYS_HAS_CPU_MIPS32_R1
251 select SYS_HAS_CPU_MIPS32_R2
252 select SYS_SUPPORTS_BIG_ENDIAN
253 select SYS_SUPPORTS_32BIT_KERNEL
254 select SYS_SUPPORTS_MIPS16
255 select SYS_SUPPORTS_MULTITHREADING
256 select SYS_HAS_EARLY_PRINTK
257 select ARCH_REQUIRE_GPIOLIB
260 select HAVE_MACH_CLKDEV
264 select PINCTRL_LANTIQ
267 bool "LASAT Networks platforms"
270 select DMA_NONCOHERENT
271 select SYS_HAS_EARLY_PRINTK
274 select PCI_GT64XXX_PCI0
276 select R5000_CPU_SCACHE
277 select SYS_HAS_CPU_R5000
278 select SYS_SUPPORTS_32BIT_KERNEL
279 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
280 select SYS_SUPPORTS_LITTLE_ENDIAN
283 bool "Loongson family of machines"
284 select SYS_SUPPORTS_ZBOOT
286 This enables the support of Loongson family of machines.
288 Loongson is a family of general-purpose MIPS-compatible CPUs.
289 developed at Institute of Computing Technology (ICT),
290 Chinese Academy of Sciences (CAS) in the People's Republic
291 of China. The chief architect is Professor Weiwu Hu.
293 config MACH_LOONGSON1
294 bool "Loongson 1 family of machines"
295 select SYS_SUPPORTS_ZBOOT
297 This enables support for the Loongson 1 based machines.
299 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
300 the ICT (Institute of Computing Technology) and the Chinese Academy
304 bool "MIPS Malta board"
305 select ARCH_MAY_HAVE_PC_FDC
311 select DMA_MAYBE_COHERENT
312 select GENERIC_ISA_DMA
313 select HAVE_PCSPKR_PLATFORM
320 select MIPS_CPU_SCACHE
321 select PCI_GT64XXX_PCI0
324 select SYS_HAS_CPU_MIPS32_R1
325 select SYS_HAS_CPU_MIPS32_R2
326 select SYS_HAS_CPU_MIPS32_R3_5
327 select SYS_HAS_CPU_MIPS64_R1
328 select SYS_HAS_CPU_MIPS64_R2
329 select SYS_HAS_CPU_NEVADA
330 select SYS_HAS_CPU_RM7000
331 select SYS_SUPPORTS_32BIT_KERNEL
332 select SYS_SUPPORTS_64BIT_KERNEL
333 select SYS_SUPPORTS_BIG_ENDIAN
334 select SYS_SUPPORTS_LITTLE_ENDIAN
335 select SYS_SUPPORTS_MIPS_CMP
336 select SYS_SUPPORTS_MIPS_CPS
337 select SYS_SUPPORTS_MIPS16
338 select SYS_SUPPORTS_MULTITHREADING
339 select SYS_SUPPORTS_SMARTMIPS
340 select SYS_SUPPORTS_ZBOOT
342 This enables support for the MIPS Technologies Malta evaluation
346 bool "MIPS SEAD3 board"
352 select CPU_MIPSR2_IRQ_VI
353 select CPU_MIPSR2_IRQ_EI
354 select DMA_NONCOHERENT
359 select SYS_HAS_CPU_MIPS32_R1
360 select SYS_HAS_CPU_MIPS32_R2
361 select SYS_HAS_CPU_MIPS64_R1
362 select SYS_HAS_EARLY_PRINTK
363 select SYS_SUPPORTS_32BIT_KERNEL
364 select SYS_SUPPORTS_64BIT_KERNEL
365 select SYS_SUPPORTS_BIG_ENDIAN
366 select SYS_SUPPORTS_LITTLE_ENDIAN
367 select SYS_SUPPORTS_SMARTMIPS
368 select SYS_SUPPORTS_MICROMIPS
369 select SYS_SUPPORTS_MIPS16
370 select USB_EHCI_BIG_ENDIAN_DESC
371 select USB_EHCI_BIG_ENDIAN_MMIO
374 This enables support for the MIPS Technologies SEAD3 evaluation
378 bool "NEC EMMA2RH Mark-eins board"
382 This enables support for the NEC Electronics Mark-eins boards.
385 bool "NEC VR4100 series based machines"
388 select SYS_HAS_CPU_VR41XX
389 select SYS_SUPPORTS_MIPS16
390 select ARCH_REQUIRE_GPIOLIB
393 bool "NXP STB220 board"
396 Support for NXP Semiconductors STB220 Development Board.
403 Support for NXP Semiconductors STB225 Development Board.
406 bool "PMC-Sierra MSP chipsets"
409 select DMA_NONCOHERENT
411 select NO_EXCEPT_FILL
413 select SYS_HAS_CPU_MIPS32_R1
414 select SYS_HAS_CPU_MIPS32_R2
415 select SYS_SUPPORTS_32BIT_KERNEL
416 select SYS_SUPPORTS_BIG_ENDIAN
417 select SYS_SUPPORTS_MIPS16
420 select SERIAL_8250_CONSOLE
421 select USB_EHCI_BIG_ENDIAN_MMIO
422 select USB_EHCI_BIG_ENDIAN_DESC
424 This adds support for the PMC-Sierra family of Multi-Service
425 Processor System-On-A-Chips. These parts include a number
426 of integrated peripherals, interfaces and DSPs in addition to
427 a variety of MIPS cores.
430 bool "Ralink based machines"
434 select DMA_NONCOHERENT
437 select SYS_HAS_CPU_MIPS32_R1
438 select SYS_HAS_CPU_MIPS32_R2
439 select SYS_SUPPORTS_32BIT_KERNEL
440 select SYS_SUPPORTS_LITTLE_ENDIAN
441 select SYS_SUPPORTS_MIPS16
442 select SYS_HAS_EARLY_PRINTK
443 select HAVE_MACH_CLKDEV
445 select ARCH_HAS_RESET_CONTROLLER
446 select RESET_CONTROLLER
449 bool "SGI IP22 (Indy/Indigo2)"
455 select DEFAULT_SGI_PARTITION
456 select DMA_NONCOHERENT
460 select IP22_CPU_SCACHE
462 select GENERIC_ISA_DMA_SUPPORT_BROKEN
464 select SGI_HAS_INDYDOG
470 select SYS_HAS_CPU_R4X00
471 select SYS_HAS_CPU_R5000
473 # Disable EARLY_PRINTK for now since it leads to overwritten prom
474 # memory during early boot on some machines.
476 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
477 # for a more details discussion
479 # select SYS_HAS_EARLY_PRINTK
480 select SYS_SUPPORTS_32BIT_KERNEL
481 select SYS_SUPPORTS_64BIT_KERNEL
482 select SYS_SUPPORTS_BIG_ENDIAN
483 select MIPS_L1_CACHE_SHIFT_7
485 This are the SGI Indy, Challenge S and Indigo2, as well as certain
486 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
487 that runs on these, say Y here.
490 bool "SGI IP27 (Origin200/2000)"
494 select DEFAULT_SGI_PARTITION
496 select SYS_HAS_EARLY_PRINTK
498 select NR_CPUS_DEFAULT_64
499 select SYS_HAS_CPU_R10000
500 select SYS_SUPPORTS_64BIT_KERNEL
501 select SYS_SUPPORTS_BIG_ENDIAN
502 select SYS_SUPPORTS_NUMA
503 select SYS_SUPPORTS_SMP
504 select MIPS_L1_CACHE_SHIFT_7
506 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
507 workstations. To compile a Linux kernel that runs on these, say Y
511 bool "SGI IP28 (Indigo2 R10k)"
517 select DEFAULT_SGI_PARTITION
518 select DMA_NONCOHERENT
519 select GENERIC_ISA_DMA_SUPPORT_BROKEN
525 select SGI_HAS_INDYDOG
531 select SYS_HAS_CPU_R10000
533 # Disable EARLY_PRINTK for now since it leads to overwritten prom
534 # memory during early boot on some machines.
536 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
537 # for a more details discussion
539 # select SYS_HAS_EARLY_PRINTK
540 select SYS_SUPPORTS_64BIT_KERNEL
541 select SYS_SUPPORTS_BIG_ENDIAN
543 This is the SGI Indigo2 with R10000 processor. To compile a Linux
544 kernel that runs on these, say Y here.
553 select DMA_NONCOHERENT
556 select R5000_CPU_SCACHE
557 select RM7000_CPU_SCACHE
558 select SYS_HAS_CPU_R5000
559 select SYS_HAS_CPU_R10000 if BROKEN
560 select SYS_HAS_CPU_RM7000
561 select SYS_HAS_CPU_NEVADA
562 select SYS_SUPPORTS_64BIT_KERNEL
563 select SYS_SUPPORTS_BIG_ENDIAN
565 If you want this kernel to run on SGI O2 workstation, say Y here.
568 bool "Sibyte BCM91120C-CRhine"
571 select SIBYTE_BCM1120
573 select SYS_HAS_CPU_SB1
574 select SYS_SUPPORTS_BIG_ENDIAN
575 select SYS_SUPPORTS_LITTLE_ENDIAN
578 bool "Sibyte BCM91120x-Carmel"
581 select SIBYTE_BCM1120
583 select SYS_HAS_CPU_SB1
584 select SYS_SUPPORTS_BIG_ENDIAN
585 select SYS_SUPPORTS_LITTLE_ENDIAN
588 bool "Sibyte BCM91125C-CRhone"
591 select SIBYTE_BCM1125
593 select SYS_HAS_CPU_SB1
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_HIGHMEM
596 select SYS_SUPPORTS_LITTLE_ENDIAN
599 bool "Sibyte BCM91125E-Rhone"
602 select SIBYTE_BCM1125H
604 select SYS_HAS_CPU_SB1
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_LITTLE_ENDIAN
609 bool "Sibyte BCM91250A-SWARM"
612 select HAVE_PATA_PLATFORM
615 select SYS_HAS_CPU_SB1
616 select SYS_SUPPORTS_BIG_ENDIAN
617 select SYS_SUPPORTS_HIGHMEM
618 select SYS_SUPPORTS_LITTLE_ENDIAN
619 select ZONE_DMA32 if 64BIT
621 config SIBYTE_LITTLESUR
622 bool "Sibyte BCM91250C2-LittleSur"
625 select HAVE_PATA_PLATFORM
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_HIGHMEM
631 select SYS_SUPPORTS_LITTLE_ENDIAN
633 config SIBYTE_SENTOSA
634 bool "Sibyte BCM91250E-Sentosa"
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_LITTLE_ENDIAN
644 bool "Sibyte BCM91480B-BigSur"
647 select NR_CPUS_DEFAULT_4
648 select SIBYTE_BCM1x80
650 select SYS_HAS_CPU_SB1
651 select SYS_SUPPORTS_BIG_ENDIAN
652 select SYS_SUPPORTS_HIGHMEM
653 select SYS_SUPPORTS_LITTLE_ENDIAN
654 select ZONE_DMA32 if 64BIT
657 bool "SNI RM200/300/400"
658 select FW_ARC if CPU_LITTLE_ENDIAN
659 select FW_ARC32 if CPU_LITTLE_ENDIAN
660 select FW_SNIPROM if CPU_BIG_ENDIAN
661 select ARCH_MAY_HAVE_PC_FDC
665 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
666 select DMA_NONCOHERENT
667 select GENERIC_ISA_DMA
668 select HAVE_PCSPKR_PLATFORM
675 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
676 select SYS_HAS_CPU_R4X00
677 select SYS_HAS_CPU_R5000
678 select SYS_HAS_CPU_R10000
679 select R5000_CPU_SCACHE
680 select SYS_HAS_EARLY_PRINTK
681 select SYS_SUPPORTS_32BIT_KERNEL
682 select SYS_SUPPORTS_64BIT_KERNEL
683 select SYS_SUPPORTS_BIG_ENDIAN
684 select SYS_SUPPORTS_HIGHMEM
685 select SYS_SUPPORTS_LITTLE_ENDIAN
686 select USE_GENERIC_EARLY_PRINTK_8250
688 The SNI RM200/300/400 are MIPS-based machines manufactured by
689 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
690 Technology and now in turn merged with Fujitsu. Say Y here to
691 support this machine type.
694 bool "Toshiba TX39 series based machines"
697 bool "Toshiba TX49 series based machines"
699 config MIKROTIK_RB532
700 bool "Mikrotik RB532 boards"
703 select DMA_NONCOHERENT
706 select SYS_HAS_CPU_MIPS32_R1
707 select SYS_SUPPORTS_32BIT_KERNEL
708 select SYS_SUPPORTS_LITTLE_ENDIAN
711 select ARCH_REQUIRE_GPIOLIB
712 select MIPS_L1_CACHE_SHIFT_4
714 Support the Mikrotik(tm) RouterBoard 532 series,
715 based on the IDT RC32434 SoC.
717 config CAVIUM_OCTEON_SOC
718 bool "Cavium Networks Octeon SoC based boards"
720 select 64BIT_PHYS_ADDR
722 select SYS_SUPPORTS_64BIT_KERNEL
723 select SYS_SUPPORTS_BIG_ENDIAN
725 select SYS_SUPPORTS_HOTPLUG_CPU
726 select SYS_HAS_EARLY_PRINTK
727 select SYS_HAS_CPU_CAVIUM_OCTEON
732 select ARCH_REQUIRE_GPIOLIB
734 This option supports all of the Octeon reference boards from Cavium
735 Networks. It builds a kernel that dynamically determines the Octeon
736 CPU type and supports all known board reference implementations.
737 Some of the supported boards are:
744 Say Y here for most Octeon reference boards.
747 bool "Netlogic XLR/XLS based systems"
750 select SYS_HAS_CPU_XLR
751 select SYS_SUPPORTS_SMP
754 select SYS_SUPPORTS_32BIT_KERNEL
755 select SYS_SUPPORTS_64BIT_KERNEL
756 select 64BIT_PHYS_ADDR
757 select SYS_SUPPORTS_BIG_ENDIAN
758 select SYS_SUPPORTS_HIGHMEM
760 select NR_CPUS_DEFAULT_32
764 select ZONE_DMA32 if 64BIT
766 select SYS_HAS_EARLY_PRINTK
767 select SYS_SUPPORTS_ZBOOT
768 select SYS_SUPPORTS_ZBOOT_UART16550
770 Support for systems based on Netlogic XLR and XLS processors.
771 Say Y here if you have a XLR or XLS based board.
774 bool "Netlogic XLP based systems"
777 select SYS_HAS_CPU_XLP
778 select SYS_SUPPORTS_SMP
780 select SYS_SUPPORTS_32BIT_KERNEL
781 select SYS_SUPPORTS_64BIT_KERNEL
782 select 64BIT_PHYS_ADDR
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_LITTLE_ENDIAN
785 select SYS_SUPPORTS_HIGHMEM
787 select NR_CPUS_DEFAULT_32
791 select ZONE_DMA32 if 64BIT
793 select SYS_HAS_EARLY_PRINTK
795 select SYS_SUPPORTS_ZBOOT
796 select SYS_SUPPORTS_ZBOOT_UART16550
798 This board is based on Netlogic XLP Processor.
799 Say Y here if you have a XLP based board.
803 source "arch/mips/alchemy/Kconfig"
804 source "arch/mips/ath79/Kconfig"
805 source "arch/mips/bcm47xx/Kconfig"
806 source "arch/mips/bcm63xx/Kconfig"
807 source "arch/mips/jazz/Kconfig"
808 source "arch/mips/jz4740/Kconfig"
809 source "arch/mips/lantiq/Kconfig"
810 source "arch/mips/lasat/Kconfig"
811 source "arch/mips/pmcs-msp71xx/Kconfig"
812 source "arch/mips/ralink/Kconfig"
813 source "arch/mips/sgi-ip27/Kconfig"
814 source "arch/mips/sibyte/Kconfig"
815 source "arch/mips/txx9/Kconfig"
816 source "arch/mips/vr41xx/Kconfig"
817 source "arch/mips/cavium-octeon/Kconfig"
818 source "arch/mips/loongson/Kconfig"
819 source "arch/mips/loongson1/Kconfig"
820 source "arch/mips/netlogic/Kconfig"
824 config RWSEM_GENERIC_SPINLOCK
828 config RWSEM_XCHGADD_ALGORITHM
831 config ARCH_HAS_ILOG2_U32
835 config ARCH_HAS_ILOG2_U64
839 config GENERIC_HWEIGHT
843 config GENERIC_CALIBRATE_DELAY
847 config SCHED_OMIT_FRAME_POINTER
852 # Select some configuration options automatically based on user selections.
857 config ARCH_MAY_HAVE_PC_FDC
902 select ARCH_REQUIRE_GPIOLIB
908 config ARCH_DMA_ADDR_T_64BIT
909 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
911 config DMA_MAYBE_COHERENT
912 select DMA_NONCOHERENT
918 config DMA_NONCOHERENT
920 select NEED_DMA_MAP_STATE
922 config NEED_DMA_MAP_STATE
925 config SYS_HAS_EARLY_PRINTK
929 bool "Support for hot-pluggable CPUs"
930 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
932 Say Y here to allow turning CPUs off and on. CPUs can be
933 controlled through /sys/devices/system/cpu.
934 (Note: power management support will enable this option
935 automatically on SMP systems. )
936 Say N if you want to disable CPU hotplug.
938 config SYS_SUPPORTS_HOTPLUG_CPU
962 config GENERIC_ISA_DMA
964 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
967 config GENERIC_ISA_DMA_SUPPORT_BROKEN
969 select GENERIC_ISA_DMA
978 # Endianness selection. Sufficiently obscure so many users don't know what to
979 # answer,so we try hard to limit the available choices. Also the use of a
980 # choice statement should be more obvious to the user.
983 prompt "Endianness selection"
985 Some MIPS machines can be configured for either little or big endian
986 byte order. These modes require different kernels and a different
987 Linux distribution. In general there is one preferred byteorder for a
988 particular system but some systems are just as commonly used in the
989 one or the other endianness.
991 config CPU_BIG_ENDIAN
993 depends on SYS_SUPPORTS_BIG_ENDIAN
995 config CPU_LITTLE_ENDIAN
997 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1004 config SYS_SUPPORTS_APM_EMULATION
1007 config SYS_SUPPORTS_BIG_ENDIAN
1010 config SYS_SUPPORTS_LITTLE_ENDIAN
1013 config SYS_SUPPORTS_HUGETLBFS
1015 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1018 config MIPS_HUGE_TLB_SUPPORT
1019 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1043 config PCI_GT64XXX_PCI0
1046 config NO_EXCEPT_FILL
1053 select DMA_NONCOHERENT
1055 select SWAP_IO_SPACE
1056 select SYS_HAS_CPU_R5500
1057 select SYS_SUPPORTS_32BIT_KERNEL
1058 select SYS_SUPPORTS_64BIT_KERNEL
1059 select SYS_SUPPORTS_BIG_ENDIAN
1066 select DMA_NONCOHERENT
1067 select SYS_HAS_CPU_MIPS32_R2
1068 select SYS_SUPPORTS_32BIT_KERNEL
1069 select SYS_SUPPORTS_LITTLE_ENDIAN
1070 select SYS_SUPPORTS_BIG_ENDIAN
1071 select SYS_SUPPORTS_MIPS16
1072 select CPU_MIPSR2_IRQ_VI
1078 config SWAP_IO_SPACE
1081 config SGI_HAS_INDYDOG
1093 config SGI_HAS_ZILOG
1096 config SGI_HAS_I8042
1099 config DEFAULT_SGI_PARTITION
1111 config MIPS_L1_CACHE_SHIFT_4
1114 config MIPS_L1_CACHE_SHIFT_5
1117 config MIPS_L1_CACHE_SHIFT_6
1120 config MIPS_L1_CACHE_SHIFT_7
1123 config MIPS_L1_CACHE_SHIFT
1125 default "4" if MIPS_L1_CACHE_SHIFT_4
1126 default "5" if MIPS_L1_CACHE_SHIFT_5
1127 default "6" if MIPS_L1_CACHE_SHIFT_6
1128 default "7" if MIPS_L1_CACHE_SHIFT_7
1131 config HAVE_STD_PC_SERIAL_PORT
1135 bool "ARC console support"
1136 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1140 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1145 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1154 menu "CPU selection"
1160 config CPU_LOONGSON3
1161 bool "Loongson 3 CPU"
1162 depends on SYS_HAS_CPU_LOONGSON3
1163 select CPU_SUPPORTS_64BIT_KERNEL
1164 select CPU_SUPPORTS_HIGHMEM
1165 select CPU_SUPPORTS_HUGEPAGES
1166 select WEAK_ORDERING
1167 select WEAK_REORDERING_BEYOND_LLSC
1169 The Loongson 3 processor implements the MIPS64R2 instruction
1170 set with many extensions.
1172 config CPU_LOONGSON2E
1174 depends on SYS_HAS_CPU_LOONGSON2E
1175 select CPU_LOONGSON2
1177 The Loongson 2E processor implements the MIPS III instruction set
1178 with many extensions.
1180 It has an internal FPGA northbridge, which is compatible to
1183 config CPU_LOONGSON2F
1185 depends on SYS_HAS_CPU_LOONGSON2F
1186 select CPU_LOONGSON2
1187 select ARCH_REQUIRE_GPIOLIB
1189 The Loongson 2F processor implements the MIPS III instruction set
1190 with many extensions.
1192 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1193 have a similar programming interface with FPGA northbridge used in
1196 config CPU_LOONGSON1B
1198 depends on SYS_HAS_CPU_LOONGSON1B
1199 select CPU_LOONGSON1
1201 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1202 release 2 instruction set.
1204 config CPU_MIPS32_R1
1205 bool "MIPS32 Release 1"
1206 depends on SYS_HAS_CPU_MIPS32_R1
1207 select CPU_HAS_PREFETCH
1208 select CPU_SUPPORTS_32BIT_KERNEL
1209 select CPU_SUPPORTS_HIGHMEM
1211 Choose this option to build a kernel for release 1 or later of the
1212 MIPS32 architecture. Most modern embedded systems with a 32-bit
1213 MIPS processor are based on a MIPS32 processor. If you know the
1214 specific type of processor in your system, choose those that one
1215 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1216 Release 2 of the MIPS32 architecture is available since several
1217 years so chances are you even have a MIPS32 Release 2 processor
1218 in which case you should choose CPU_MIPS32_R2 instead for better
1221 config CPU_MIPS32_R2
1222 bool "MIPS32 Release 2"
1223 depends on SYS_HAS_CPU_MIPS32_R2
1224 select CPU_HAS_PREFETCH
1225 select CPU_SUPPORTS_32BIT_KERNEL
1226 select CPU_SUPPORTS_HIGHMEM
1227 select CPU_SUPPORTS_MSA
1230 Choose this option to build a kernel for release 2 or later of the
1231 MIPS32 architecture. Most modern embedded systems with a 32-bit
1232 MIPS processor are based on a MIPS32 processor. If you know the
1233 specific type of processor in your system, choose those that one
1234 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1236 config CPU_MIPS64_R1
1237 bool "MIPS64 Release 1"
1238 depends on SYS_HAS_CPU_MIPS64_R1
1239 select CPU_HAS_PREFETCH
1240 select CPU_SUPPORTS_32BIT_KERNEL
1241 select CPU_SUPPORTS_64BIT_KERNEL
1242 select CPU_SUPPORTS_HIGHMEM
1243 select CPU_SUPPORTS_HUGEPAGES
1245 Choose this option to build a kernel for release 1 or later of the
1246 MIPS64 architecture. Many modern embedded systems with a 64-bit
1247 MIPS processor are based on a MIPS64 processor. If you know the
1248 specific type of processor in your system, choose those that one
1249 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1250 Release 2 of the MIPS64 architecture is available since several
1251 years so chances are you even have a MIPS64 Release 2 processor
1252 in which case you should choose CPU_MIPS64_R2 instead for better
1255 config CPU_MIPS64_R2
1256 bool "MIPS64 Release 2"
1257 depends on SYS_HAS_CPU_MIPS64_R2
1258 select CPU_HAS_PREFETCH
1259 select CPU_SUPPORTS_32BIT_KERNEL
1260 select CPU_SUPPORTS_64BIT_KERNEL
1261 select CPU_SUPPORTS_HIGHMEM
1262 select CPU_SUPPORTS_HUGEPAGES
1263 select CPU_SUPPORTS_MSA
1265 Choose this option to build a kernel for release 2 or later of the
1266 MIPS64 architecture. Many modern embedded systems with a 64-bit
1267 MIPS processor are based on a MIPS64 processor. If you know the
1268 specific type of processor in your system, choose those that one
1269 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1273 depends on SYS_HAS_CPU_R3000
1275 select CPU_SUPPORTS_32BIT_KERNEL
1276 select CPU_SUPPORTS_HIGHMEM
1278 Please make sure to pick the right CPU type. Linux/MIPS is not
1279 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1280 *not* work on R4000 machines and vice versa. However, since most
1281 of the supported machines have an R4000 (or similar) CPU, R4x00
1282 might be a safe bet. If the resulting kernel does not work,
1283 try to recompile with R3000.
1287 depends on SYS_HAS_CPU_TX39XX
1288 select CPU_SUPPORTS_32BIT_KERNEL
1292 depends on SYS_HAS_CPU_VR41XX
1293 select CPU_SUPPORTS_32BIT_KERNEL
1294 select CPU_SUPPORTS_64BIT_KERNEL
1296 The options selects support for the NEC VR4100 series of processors.
1297 Only choose this option if you have one of these processors as a
1298 kernel built with this option will not run on any other type of
1299 processor or vice versa.
1303 depends on SYS_HAS_CPU_R4300
1304 select CPU_SUPPORTS_32BIT_KERNEL
1305 select CPU_SUPPORTS_64BIT_KERNEL
1307 MIPS Technologies R4300-series processors.
1311 depends on SYS_HAS_CPU_R4X00
1312 select CPU_SUPPORTS_32BIT_KERNEL
1313 select CPU_SUPPORTS_64BIT_KERNEL
1314 select CPU_SUPPORTS_HUGEPAGES
1316 MIPS Technologies R4000-series processors other than 4300, including
1317 the R4000, R4400, R4600, and 4700.
1321 depends on SYS_HAS_CPU_TX49XX
1322 select CPU_HAS_PREFETCH
1323 select CPU_SUPPORTS_32BIT_KERNEL
1324 select CPU_SUPPORTS_64BIT_KERNEL
1325 select CPU_SUPPORTS_HUGEPAGES
1329 depends on SYS_HAS_CPU_R5000
1330 select CPU_SUPPORTS_32BIT_KERNEL
1331 select CPU_SUPPORTS_64BIT_KERNEL
1332 select CPU_SUPPORTS_HUGEPAGES
1334 MIPS Technologies R5000-series processors other than the Nevada.
1338 depends on SYS_HAS_CPU_R5432
1339 select CPU_SUPPORTS_32BIT_KERNEL
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HUGEPAGES
1345 depends on SYS_HAS_CPU_R5500
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 select CPU_SUPPORTS_HUGEPAGES
1350 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1355 depends on SYS_HAS_CPU_R6000
1356 select CPU_SUPPORTS_32BIT_KERNEL
1358 MIPS Technologies R6000 and R6000A series processors. Note these
1359 processors are extremely rare and the support for them is incomplete.
1363 depends on SYS_HAS_CPU_NEVADA
1364 select CPU_SUPPORTS_32BIT_KERNEL
1365 select CPU_SUPPORTS_64BIT_KERNEL
1366 select CPU_SUPPORTS_HUGEPAGES
1368 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1372 depends on SYS_HAS_CPU_R8000
1373 select CPU_HAS_PREFETCH
1374 select CPU_SUPPORTS_64BIT_KERNEL
1376 MIPS Technologies R8000 processors. Note these processors are
1377 uncommon and the support for them is incomplete.
1381 depends on SYS_HAS_CPU_R10000
1382 select CPU_HAS_PREFETCH
1383 select CPU_SUPPORTS_32BIT_KERNEL
1384 select CPU_SUPPORTS_64BIT_KERNEL
1385 select CPU_SUPPORTS_HIGHMEM
1386 select CPU_SUPPORTS_HUGEPAGES
1388 MIPS Technologies R10000-series processors.
1392 depends on SYS_HAS_CPU_RM7000
1393 select CPU_HAS_PREFETCH
1394 select CPU_SUPPORTS_32BIT_KERNEL
1395 select CPU_SUPPORTS_64BIT_KERNEL
1396 select CPU_SUPPORTS_HIGHMEM
1397 select CPU_SUPPORTS_HUGEPAGES
1401 depends on SYS_HAS_CPU_SB1
1402 select CPU_SUPPORTS_32BIT_KERNEL
1403 select CPU_SUPPORTS_64BIT_KERNEL
1404 select CPU_SUPPORTS_HIGHMEM
1405 select CPU_SUPPORTS_HUGEPAGES
1406 select WEAK_ORDERING
1408 config CPU_CAVIUM_OCTEON
1409 bool "Cavium Octeon processor"
1410 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1411 select ARCH_SPARSEMEM_ENABLE
1412 select CPU_HAS_PREFETCH
1413 select CPU_SUPPORTS_64BIT_KERNEL
1414 select SYS_SUPPORTS_SMP
1415 select NR_CPUS_DEFAULT_16
1416 select WEAK_ORDERING
1417 select CPU_SUPPORTS_HIGHMEM
1418 select CPU_SUPPORTS_HUGEPAGES
1421 select USB_EHCI_BIG_ENDIAN_MMIO
1422 select MIPS_L1_CACHE_SHIFT_7
1424 The Cavium Octeon processor is a highly integrated chip containing
1425 many ethernet hardware widgets for networking tasks. The processor
1426 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1427 Full details can be found at http://www.caviumnetworks.com.
1430 bool "Broadcom BMIPS"
1431 depends on SYS_HAS_CPU_BMIPS
1433 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1434 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1435 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1436 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1437 select CPU_SUPPORTS_32BIT_KERNEL
1438 select DMA_NONCOHERENT
1440 select SWAP_IO_SPACE
1441 select WEAK_ORDERING
1442 select CPU_SUPPORTS_HIGHMEM
1443 select CPU_HAS_PREFETCH
1445 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1448 bool "Netlogic XLR SoC"
1449 depends on SYS_HAS_CPU_XLR
1450 select CPU_SUPPORTS_32BIT_KERNEL
1451 select CPU_SUPPORTS_64BIT_KERNEL
1452 select CPU_SUPPORTS_HIGHMEM
1453 select CPU_SUPPORTS_HUGEPAGES
1454 select WEAK_ORDERING
1455 select WEAK_REORDERING_BEYOND_LLSC
1457 Netlogic Microsystems XLR/XLS processors.
1460 bool "Netlogic XLP SoC"
1461 depends on SYS_HAS_CPU_XLP
1462 select CPU_SUPPORTS_32BIT_KERNEL
1463 select CPU_SUPPORTS_64BIT_KERNEL
1464 select CPU_SUPPORTS_HIGHMEM
1465 select WEAK_ORDERING
1466 select WEAK_REORDERING_BEYOND_LLSC
1467 select CPU_HAS_PREFETCH
1470 Netlogic Microsystems XLP processors.
1473 config CPU_MIPS32_3_5_FEATURES
1474 bool "MIPS32 Release 3.5 Features"
1475 depends on SYS_HAS_CPU_MIPS32_R3_5
1476 depends on CPU_MIPS32_R2
1478 Choose this option to build a kernel for release 2 or later of the
1479 MIPS32 architecture including features from the 3.5 release such as
1480 support for Enhanced Virtual Addressing (EVA).
1482 config CPU_MIPS32_3_5_EVA
1483 bool "Enhanced Virtual Addressing (EVA)"
1484 depends on CPU_MIPS32_3_5_FEATURES
1488 Choose this option if you want to enable the Enhanced Virtual
1489 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1490 One of its primary benefits is an increase in the maximum size
1491 of lowmem (up to 3GB). If unsure, say 'N' here.
1494 config CPU_NOP_WORKAROUNDS
1497 config CPU_JUMP_WORKAROUNDS
1500 config CPU_LOONGSON2F_WORKAROUNDS
1501 bool "Loongson 2F Workarounds"
1503 select CPU_NOP_WORKAROUNDS
1504 select CPU_JUMP_WORKAROUNDS
1506 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1507 require workarounds. Without workarounds the system may hang
1508 unexpectedly. For more information please refer to the gas
1509 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1511 Loongson 2F03 and later have fixed these issues and no workarounds
1512 are needed. The workarounds have no significant side effect on them
1513 but may decrease the performance of the system so this option should
1514 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1517 If unsure, please say Y.
1518 endif # CPU_LOONGSON2F
1520 config SYS_SUPPORTS_ZBOOT
1522 select HAVE_KERNEL_GZIP
1523 select HAVE_KERNEL_BZIP2
1524 select HAVE_KERNEL_LZ4
1525 select HAVE_KERNEL_LZMA
1526 select HAVE_KERNEL_LZO
1527 select HAVE_KERNEL_XZ
1529 config SYS_SUPPORTS_ZBOOT_UART16550
1531 select SYS_SUPPORTS_ZBOOT
1533 config CPU_LOONGSON2
1535 select CPU_SUPPORTS_32BIT_KERNEL
1536 select CPU_SUPPORTS_64BIT_KERNEL
1537 select CPU_SUPPORTS_HIGHMEM
1538 select CPU_SUPPORTS_HUGEPAGES
1540 config CPU_LOONGSON1
1544 select CPU_HAS_PREFETCH
1545 select CPU_SUPPORTS_32BIT_KERNEL
1546 select CPU_SUPPORTS_HIGHMEM
1548 config CPU_BMIPS32_3300
1549 select SMP_UP if SMP
1552 config CPU_BMIPS4350
1554 select SYS_SUPPORTS_SMP
1555 select SYS_SUPPORTS_HOTPLUG_CPU
1557 config CPU_BMIPS4380
1559 select SYS_SUPPORTS_SMP
1560 select SYS_SUPPORTS_HOTPLUG_CPU
1562 config CPU_BMIPS5000
1564 select MIPS_CPU_SCACHE
1565 select SYS_SUPPORTS_SMP
1566 select SYS_SUPPORTS_HOTPLUG_CPU
1568 config SYS_HAS_CPU_LOONGSON3
1570 select CPU_SUPPORTS_CPUFREQ
1572 config SYS_HAS_CPU_LOONGSON2E
1575 config SYS_HAS_CPU_LOONGSON2F
1577 select CPU_SUPPORTS_CPUFREQ
1578 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1579 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1581 config SYS_HAS_CPU_LOONGSON1B
1584 config SYS_HAS_CPU_MIPS32_R1
1587 config SYS_HAS_CPU_MIPS32_R2
1590 config SYS_HAS_CPU_MIPS32_R3_5
1593 config SYS_HAS_CPU_MIPS64_R1
1596 config SYS_HAS_CPU_MIPS64_R2
1599 config SYS_HAS_CPU_R3000
1602 config SYS_HAS_CPU_TX39XX
1605 config SYS_HAS_CPU_VR41XX
1608 config SYS_HAS_CPU_R4300
1611 config SYS_HAS_CPU_R4X00
1614 config SYS_HAS_CPU_TX49XX
1617 config SYS_HAS_CPU_R5000
1620 config SYS_HAS_CPU_R5432
1623 config SYS_HAS_CPU_R5500
1626 config SYS_HAS_CPU_R6000
1629 config SYS_HAS_CPU_NEVADA
1632 config SYS_HAS_CPU_R8000
1635 config SYS_HAS_CPU_R10000
1638 config SYS_HAS_CPU_RM7000
1641 config SYS_HAS_CPU_SB1
1644 config SYS_HAS_CPU_CAVIUM_OCTEON
1647 config SYS_HAS_CPU_BMIPS
1650 config SYS_HAS_CPU_BMIPS32_3300
1652 select SYS_HAS_CPU_BMIPS
1654 config SYS_HAS_CPU_BMIPS4350
1656 select SYS_HAS_CPU_BMIPS
1658 config SYS_HAS_CPU_BMIPS4380
1660 select SYS_HAS_CPU_BMIPS
1662 config SYS_HAS_CPU_BMIPS5000
1664 select SYS_HAS_CPU_BMIPS
1666 config SYS_HAS_CPU_XLR
1669 config SYS_HAS_CPU_XLP
1673 # CPU may reorder R->R, R->W, W->R, W->W
1674 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1676 config WEAK_ORDERING
1680 # CPU may reorder reads and writes beyond LL/SC
1681 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1683 config WEAK_REORDERING_BEYOND_LLSC
1688 # These two indicate any level of the MIPS32 and MIPS64 architecture
1692 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1696 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1699 # These two indicate the revision of the architecture, either Release 1 or Release 2
1703 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1707 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1712 config SYS_SUPPORTS_32BIT_KERNEL
1714 config SYS_SUPPORTS_64BIT_KERNEL
1716 config CPU_SUPPORTS_32BIT_KERNEL
1718 config CPU_SUPPORTS_64BIT_KERNEL
1720 config CPU_SUPPORTS_CPUFREQ
1722 config CPU_SUPPORTS_ADDRWINCFG
1724 config CPU_SUPPORTS_HUGEPAGES
1726 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1728 config MIPS_PGD_C0_CONTEXT
1730 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1733 # Set to y for ptrace access to watch registers.
1735 config HARDWARE_WATCHPOINTS
1737 default y if CPU_MIPSR1 || CPU_MIPSR2
1742 prompt "Kernel code model"
1744 You should only select this option if you have a workload that
1745 actually benefits from 64-bit processing or if your machine has
1746 large memory. You will only be presented a single option in this
1747 menu if your system does not support both 32-bit and 64-bit kernels.
1750 bool "32-bit kernel"
1751 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1754 Select this option if you want to build a 32-bit kernel.
1756 bool "64-bit kernel"
1757 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1759 Select this option if you want to build a 64-bit kernel.
1764 bool "KVM Guest Kernel"
1765 depends on BROKEN_ON_SMP
1767 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1769 config KVM_HOST_FREQ
1770 int "KVM Host Processor Frequency (MHz)"
1771 depends on KVM_GUEST
1774 Select this option if building a guest kernel for KVM to skip
1775 RTC emulation when determining guest CPU Frequency. Instead, the guest
1776 processor frequency is automatically derived from the host frequency.
1779 prompt "Kernel page size"
1780 default PAGE_SIZE_4KB
1782 config PAGE_SIZE_4KB
1784 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1786 This option select the standard 4kB Linux page size. On some
1787 R3000-family processors this is the only available page size. Using
1788 4kB page size will minimize memory consumption and is therefore
1789 recommended for low memory systems.
1791 config PAGE_SIZE_8KB
1793 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1795 Using 8kB page size will result in higher performance kernel at
1796 the price of higher memory consumption. This option is available
1797 only on R8000 and cnMIPS processors. Note that you will need a
1798 suitable Linux distribution to support this.
1800 config PAGE_SIZE_16KB
1802 depends on !CPU_R3000 && !CPU_TX39XX
1804 Using 16kB page size will result in higher performance kernel at
1805 the price of higher memory consumption. This option is available on
1806 all non-R3000 family processors. Note that you will need a suitable
1807 Linux distribution to support this.
1809 config PAGE_SIZE_32KB
1811 depends on CPU_CAVIUM_OCTEON
1813 Using 32kB page size will result in higher performance kernel at
1814 the price of higher memory consumption. This option is available
1815 only on cnMIPS cores. Note that you will need a suitable Linux
1816 distribution to support this.
1818 config PAGE_SIZE_64KB
1820 depends on !CPU_R3000 && !CPU_TX39XX
1822 Using 64kB page size will result in higher performance kernel at
1823 the price of higher memory consumption. This option is available on
1824 all non-R3000 family processor. Not that at the time of this
1825 writing this option is still high experimental.
1829 config FORCE_MAX_ZONEORDER
1830 int "Maximum zone order"
1831 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1832 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1833 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1834 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1835 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1836 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1840 The kernel memory allocator divides physically contiguous memory
1841 blocks into "zones", where each zone is a power of two number of
1842 pages. This option selects the largest power of two that the kernel
1843 keeps in the memory allocator. If you need to allocate very large
1844 blocks of physically contiguous memory, then you may need to
1845 increase this value.
1847 This config option is actually maximum order plus one. For example,
1848 a value of 11 means that the largest free memory block is 2^10 pages.
1850 The page size is not necessarily 4KB. Keep this in mind
1851 when choosing a value for this option.
1854 bool "Use GIC global counter for clock events"
1855 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1857 Use the GIC global counter for the clock events. The R4K clock
1858 event driver is always present, so if the platform ends up not
1859 detecting a GIC, it will fall back to the R4K timer for the
1860 generation of clock events.
1865 config IP22_CPU_SCACHE
1870 # Support for a MIPS32 / MIPS64 style S-caches
1872 config MIPS_CPU_SCACHE
1875 select MIPS_L1_CACHE_SHIFT_6
1877 config R5000_CPU_SCACHE
1881 config RM7000_CPU_SCACHE
1885 config SIBYTE_DMA_PAGEOPS
1886 bool "Use DMA to clear/copy pages"
1889 Instead of using the CPU to zero and copy pages, use a Data Mover
1890 channel. These DMA channels are otherwise unused by the standard
1891 SiByte Linux port. Seems to give a small performance benefit.
1893 config CPU_HAS_PREFETCH
1896 config CPU_GENERIC_DUMP_TLB
1898 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1902 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1904 config CPU_R4K_CACHE_TLB
1906 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1909 prompt "MIPS MT options"
1911 config MIPS_MT_DISABLED
1912 bool "Disable multithreading support"
1914 Use this option if your platform does not support the MT ASE
1915 which is hardware multithreading support. On systems without
1916 an MT-enabled processor, this will be the only option that is
1917 available in this menu.
1920 bool "Use 1 TC on each available VPE for SMP"
1921 depends on SYS_SUPPORTS_MULTITHREADING
1922 select CPU_MIPSR2_IRQ_VI
1923 select CPU_MIPSR2_IRQ_EI
1929 select SYS_SUPPORTS_SMP
1930 select SYS_SUPPORTS_SCHED_SMT
1931 select MIPS_PERF_SHARED_TC_COUNTERS
1933 This is a kernel model which is known as SMVP. This is supported
1934 on cores with the MT ASE and uses the available VPEs to implement
1935 virtual processors which supports SMP. This is equivalent to the
1936 Intel Hyperthreading feature. For further information go to
1937 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1940 bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
1941 depends on CPU_MIPS32_R2
1942 depends on SYS_SUPPORTS_MULTITHREADING
1943 depends on !MIPS_CPS
1944 select CPU_MIPSR2_IRQ_VI
1945 select CPU_MIPSR2_IRQ_EI
1949 select SYS_SUPPORTS_SMP
1950 select NR_CPUS_DEFAULT_8
1952 This is a kernel model which is known as SMTC. This is
1953 supported on cores with the MT ASE and presents all TCs
1954 available on all VPEs to support SMP. For further
1955 information see <http://www.linux-mips.org/wiki/34K#SMTC>.
1963 bool "SMT (multithreading) scheduler support"
1964 depends on SYS_SUPPORTS_SCHED_SMT
1967 SMT scheduler support improves the CPU scheduler's decision making
1968 when dealing with MIPS MT enabled cores at a cost of slightly
1969 increased overhead in some places. If unsure say N here.
1971 config SYS_SUPPORTS_SCHED_SMT
1974 config SYS_SUPPORTS_MULTITHREADING
1977 config MIPS_MT_FPAFF
1978 bool "Dynamic FPU affinity for FP-intensive threads"
1980 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1982 config MIPS_VPE_LOADER
1983 bool "VPE loader support."
1984 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1985 select CPU_MIPSR2_IRQ_VI
1986 select CPU_MIPSR2_IRQ_EI
1989 Includes a loader for loading an elf relocatable object
1990 onto another VPE and running it.
1992 config MIPS_VPE_LOADER_CMP
1995 depends on MIPS_VPE_LOADER && MIPS_CMP
1997 config MIPS_VPE_LOADER_MT
2000 depends on MIPS_VPE_LOADER && !MIPS_CMP
2002 config MIPS_MT_SMTC_IM_BACKSTOP
2003 bool "Use per-TC register bits as backstop for inhibited IM bits"
2004 depends on MIPS_MT_SMTC
2007 To support multiple TC microthreads acting as "CPUs" within
2008 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2009 during interrupt handling. To support legacy drivers and interrupt
2010 controller management code, SMTC has a "backstop" to track and
2011 if necessary restore the interrupt mask. This has some performance
2012 impact on interrupt service overhead.
2014 config MIPS_MT_SMTC_IRQAFF
2015 bool "Support IRQ affinity API"
2016 depends on MIPS_MT_SMTC
2019 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2020 for SMTC Linux kernel. Requires platform support, of which
2021 an example can be found in the MIPS kernel i8259 and Malta
2022 platform code. Adds some overhead to interrupt dispatch, and
2023 should be used only if you know what you are doing.
2025 config MIPS_VPE_LOADER_TOM
2026 bool "Load VPE program into memory hidden from linux"
2027 depends on MIPS_VPE_LOADER
2030 The loader can use memory that is present but has been hidden from
2031 Linux using the kernel command line option "mem=xxMB". It's up to
2032 you to ensure the amount you put in the option and the space your
2033 program requires is less or equal to the amount physically present.
2035 config MIPS_VPE_APSP_API
2036 bool "Enable support for AP/SP API (RTLX)"
2037 depends on MIPS_VPE_LOADER
2040 config MIPS_VPE_APSP_API_CMP
2043 depends on MIPS_VPE_APSP_API && MIPS_CMP
2045 config MIPS_VPE_APSP_API_MT
2048 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2051 bool "MIPS CMP framework support (DEPRECATED)"
2052 depends on SYS_SUPPORTS_MIPS_CMP && !MIPS_MT_SMTC
2055 select WEAK_ORDERING
2058 Select this if you are using a bootloader which implements the "CMP
2059 framework" protocol (ie. YAMON) and want your kernel to make use of
2060 its ability to start secondary CPUs.
2062 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2066 bool "MIPS Coherent Processing System support"
2067 depends on SYS_SUPPORTS_MIPS_CPS
2072 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2073 select SYS_SUPPORTS_SMP
2074 select WEAK_ORDERING
2076 Select this if you wish to run an SMP kernel across multiple cores
2077 within a MIPS Coherent Processing System. When this option is
2078 enabled the kernel will probe for other cores and boot them with
2079 no external assistance. It is safe to enable this when hardware
2080 support is unavailable.
2091 config SB1_PASS_1_WORKAROUNDS
2093 depends on CPU_SB1_PASS_1
2096 config SB1_PASS_2_WORKAROUNDS
2098 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2101 config SB1_PASS_2_1_WORKAROUNDS
2103 depends on CPU_SB1 && CPU_SB1_PASS_2
2107 config 64BIT_PHYS_ADDR
2110 config ARCH_PHYS_ADDR_T_64BIT
2111 def_bool 64BIT_PHYS_ADDR
2113 config CPU_HAS_SMARTMIPS
2114 depends on SYS_SUPPORTS_SMARTMIPS
2115 bool "Support for the SmartMIPS ASE"
2117 SmartMIPS is a extension of the MIPS32 architecture aimed at
2118 increased security at both hardware and software level for
2119 smartcards. Enabling this option will allow proper use of the
2120 SmartMIPS instructions by Linux applications. However a kernel with
2121 this option will not work on a MIPS core without SmartMIPS core. If
2122 you don't know you probably don't have SmartMIPS and should say N
2125 config CPU_MICROMIPS
2126 depends on SYS_SUPPORTS_MICROMIPS
2127 bool "Build kernel using microMIPS ISA"
2129 When this option is enabled the kernel will be built using the
2133 bool "Support for the MIPS SIMD Architecture"
2134 depends on CPU_SUPPORTS_MSA
2137 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2138 and a set of SIMD instructions to operate on them. When this option
2139 is enabled the kernel will support allocating & switching MSA
2140 vector register contexts. If you know that your kernel will only be
2141 running on CPUs which do not support MSA or that your userland will
2142 not be making use of it then you may wish to say N here to reduce
2143 the size & complexity of your kernel.
2154 # Vectored interrupt mode is an R2 feature
2156 config CPU_MIPSR2_IRQ_VI
2160 # Extended interrupt mode is an R2 feature
2162 config CPU_MIPSR2_IRQ_EI
2167 depends on !CPU_R3000
2173 config CPU_DADDI_WORKAROUNDS
2176 config CPU_R4000_WORKAROUNDS
2178 select CPU_R4400_WORKAROUNDS
2180 config CPU_R4400_WORKAROUNDS
2184 # - Highmem only makes sense for the 32-bit kernel.
2185 # - The current highmem code will only work properly on physically indexed
2186 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2187 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2188 # moment we protect the user and offer the highmem option only on machines
2189 # where it's known to be safe. This will not offer highmem on a few systems
2190 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2191 # indexed CPUs but we're playing safe.
2192 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2193 # know they might have memory configurations that could make use of highmem
2197 bool "High Memory Support"
2198 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2200 config CPU_SUPPORTS_HIGHMEM
2203 config SYS_SUPPORTS_HIGHMEM
2206 config SYS_SUPPORTS_SMARTMIPS
2209 config SYS_SUPPORTS_MICROMIPS
2212 config SYS_SUPPORTS_MIPS16
2215 This option must be set if a kernel might be executed on a MIPS16-
2216 enabled CPU even if MIPS16 is not actually being used. In other
2217 words, it makes the kernel MIPS16-tolerant.
2219 config CPU_SUPPORTS_MSA
2222 config ARCH_FLATMEM_ENABLE
2224 depends on !NUMA && !CPU_LOONGSON2
2226 config ARCH_DISCONTIGMEM_ENABLE
2228 default y if SGI_IP27
2230 Say Y to support efficient handling of discontiguous physical memory,
2231 for architectures which are either NUMA (Non-Uniform Memory Access)
2232 or have huge holes in the physical address space for other reasons.
2233 See <file:Documentation/vm/numa> for more.
2235 config ARCH_SPARSEMEM_ENABLE
2237 select SPARSEMEM_STATIC
2241 depends on SYS_SUPPORTS_NUMA
2243 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2244 Access). This option improves performance on systems with more
2245 than two nodes; on two node systems it is generally better to
2246 leave it disabled; on single node systems disable this option
2249 config SYS_SUPPORTS_NUMA
2255 depends on NEED_MULTIPLE_NODES
2257 config HW_PERF_EVENTS
2258 bool "Enable hardware performance counter support for perf events"
2259 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2262 Enable hardware performance counter support for perf events. If
2263 disabled, perf events will use software events only.
2268 bool "Multi-Processing support"
2269 depends on SYS_SUPPORTS_SMP
2271 This enables support for systems with more than one CPU. If you have
2272 a system with only one CPU, say N. If you have a system with more
2273 than one CPU, say Y.
2275 If you say N here, the kernel will run on uni- and multiprocessor
2276 machines, but will use only one CPU of a multiprocessor machine. If
2277 you say Y here, the kernel will run on many, but not all,
2278 uniprocessor machines. On a uniprocessor machine, the kernel
2279 will run faster if you say N here.
2281 People using multiprocessor machines who say Y here should also say
2282 Y to "Enhanced Real Time Clock Support", below.
2284 See also the SMP-HOWTO available at
2285 <http://www.tldp.org/docs.html#howto>.
2287 If you don't know what to do here, say N.
2292 config SYS_SUPPORTS_MIPS_CMP
2295 config SYS_SUPPORTS_MIPS_CPS
2298 config SYS_SUPPORTS_SMP
2301 config NR_CPUS_DEFAULT_4
2304 config NR_CPUS_DEFAULT_8
2307 config NR_CPUS_DEFAULT_16
2310 config NR_CPUS_DEFAULT_32
2313 config NR_CPUS_DEFAULT_64
2317 int "Maximum number of CPUs (2-64)"
2320 default "4" if NR_CPUS_DEFAULT_4
2321 default "8" if NR_CPUS_DEFAULT_8
2322 default "16" if NR_CPUS_DEFAULT_16
2323 default "32" if NR_CPUS_DEFAULT_32
2324 default "64" if NR_CPUS_DEFAULT_64
2326 This allows you to specify the maximum number of CPUs which this
2327 kernel will support. The maximum supported value is 32 for 32-bit
2328 kernel and 64 for 64-bit kernels; the minimum value which makes
2329 sense is 1 for Qemu (useful only for kernel debugging purposes)
2330 and 2 for all others.
2332 This is purely to save memory - each supported CPU adds
2333 approximately eight kilobytes to the kernel image. For best
2334 performance should round up your number of processors to the next
2337 config MIPS_PERF_SHARED_TC_COUNTERS
2341 # Timer Interrupt Frequency Configuration
2345 prompt "Timer frequency"
2348 Allows the configuration of the timer frequency.
2351 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2354 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2357 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2360 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2363 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2366 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2369 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2373 config SYS_SUPPORTS_48HZ
2376 config SYS_SUPPORTS_100HZ
2379 config SYS_SUPPORTS_128HZ
2382 config SYS_SUPPORTS_250HZ
2385 config SYS_SUPPORTS_256HZ
2388 config SYS_SUPPORTS_1000HZ
2391 config SYS_SUPPORTS_1024HZ
2394 config SYS_SUPPORTS_ARBIT_HZ
2396 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2397 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2398 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2399 !SYS_SUPPORTS_1024HZ
2404 default 100 if HZ_100
2405 default 128 if HZ_128
2406 default 250 if HZ_250
2407 default 256 if HZ_256
2408 default 1000 if HZ_1000
2409 default 1024 if HZ_1024
2411 source "kernel/Kconfig.preempt"
2414 bool "Kexec system call"
2416 kexec is a system call that implements the ability to shutdown your
2417 current kernel, and to start another kernel. It is like a reboot
2418 but it is independent of the system firmware. And like a reboot
2419 you can start any kernel with it, not just Linux.
2421 The name comes from the similarity to the exec system call.
2423 It is an ongoing process to be certain the hardware in a machine
2424 is properly shutdown, so do not be surprised if this code does not
2425 initially work for you. As of this writing the exact hardware
2426 interface is strongly in flux, so no good recommendation can be
2430 bool "Kernel crash dumps"
2432 Generate crash dump after being started by kexec.
2433 This should be normally only set in special crash dump kernels
2434 which are loaded in the main kernel with kexec-tools into
2435 a specially reserved region and then later executed after
2436 a crash by kdump/kexec. The crash dump kernel must be compiled
2437 to a memory address not used by the main kernel or firmware using
2440 config PHYSICAL_START
2441 hex "Physical address where the kernel is loaded"
2442 default "0xffffffff84000000" if 64BIT
2443 default "0x84000000" if 32BIT
2444 depends on CRASH_DUMP
2446 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2447 If you plan to use kernel for capturing the crash dump change
2448 this value to start of the reserved region (the "X" value as
2449 specified in the "crashkernel=YM@XM" command line boot parameter
2450 passed to the panic-ed kernel).
2453 bool "Enable seccomp to safely compute untrusted bytecode"
2457 This kernel feature is useful for number crunching applications
2458 that may need to compute untrusted bytecode during their
2459 execution. By using pipes or other transports made available to
2460 the process as file descriptors supporting the read/write
2461 syscalls, it's possible to isolate those applications in
2462 their own address space using seccomp. Once seccomp is
2463 enabled via /proc/<pid>/seccomp, it cannot be disabled
2464 and the task is only allowed to execute a few safe syscalls
2465 defined by each seccomp mode.
2467 If unsure, say Y. Only embedded should say N here.
2469 config MIPS_O32_FP64_SUPPORT
2470 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2471 depends on 32BIT || MIPS32_O32
2473 When this is enabled, the kernel will support use of 64-bit floating
2474 point registers with binaries using the O32 ABI along with the
2475 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2476 32-bit MIPS systems this support is at the cost of increasing the
2477 size and complexity of the compiled FPU emulator. Thus if you are
2478 running a MIPS32 system and know that none of your userland binaries
2479 will require 64-bit floating point, you may wish to reduce the size
2480 of your kernel & potentially improve FP emulation performance by
2483 Although binutils currently supports use of this flag the details
2484 concerning its effect upon the O32 ABI in userland are still being
2485 worked on. In order to avoid userland becoming dependant upon current
2486 behaviour before the details have been finalised, this option should
2487 be considered experimental and only enabled by those working upon
2495 select OF_EARLY_FLATTREE
2500 config LOCKDEP_SUPPORT
2504 config STACKTRACE_SUPPORT
2508 source "init/Kconfig"
2510 source "kernel/Kconfig.freezer"
2512 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2520 bool "Support for PCI controller"
2521 depends on HW_HAS_PCI
2523 select NO_GENERIC_PCI_IOPORT_MAP
2525 Find out whether you have a PCI motherboard. PCI is the name of a
2526 bus system, i.e. the way the CPU talks to the other stuff inside
2527 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2531 bool "Support for HT-linked PCI"
2533 depends on CPU_LOONGSON3
2537 Loongson family machines use Hyper-Transport bus for inter-core
2538 connection and device connection. The PCI bus is a subordinate
2539 linked at HT. Choose Y for Loongson-3 based machines.
2544 source "drivers/pci/Kconfig"
2546 source "drivers/pci/pcie/Kconfig"
2549 # ISA support is now enabled via select. Too many systems still have the one
2550 # or other ISA chip on the board that users don't know about so don't expect
2551 # users to choose the right thing ...
2558 depends on HW_HAS_EISA
2560 select GENERIC_ISA_DMA
2562 The Extended Industry Standard Architecture (EISA) bus was
2563 developed as an open alternative to the IBM MicroChannel bus.
2565 The EISA bus provided some of the features of the IBM MicroChannel
2566 bus while maintaining backward compatibility with cards made for
2567 the older ISA bus. The EISA bus saw limited use between 1988 and
2568 1995 when it was made obsolete by the PCI bus.
2570 Say Y here if you are building a kernel for an EISA-based machine.
2574 source "drivers/eisa/Kconfig"
2577 bool "TURBOchannel support"
2578 depends on MACH_DECSTATION
2580 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2581 processors. TURBOchannel programming specifications are available
2583 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2585 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2586 Linux driver support status is documented at:
2587 <http://www.linux-mips.org/wiki/DECstation>
2597 select MIPS_EXTERNAL_TIMER
2605 source "drivers/pcmcia/Kconfig"
2607 source "drivers/pci/hotplug/Kconfig"
2610 tristate "RapidIO support"
2614 If you say Y here, the kernel will include drivers and
2615 infrastructure code to support RapidIO interconnect devices.
2617 source "drivers/rapidio/Kconfig"
2621 menu "Executable file formats"
2623 source "fs/Kconfig.binfmt"
2628 config MIPS32_COMPAT
2629 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2632 Select this option if you want Linux/MIPS 32-bit binary
2633 compatibility. Since all software available for Linux/MIPS is
2634 currently 32-bit you should say Y here.
2638 depends on MIPS32_COMPAT
2639 select ARCH_WANT_OLD_COMPAT_IPC
2642 config SYSVIPC_COMPAT
2644 depends on COMPAT && SYSVIPC
2648 bool "Kernel support for o32 binaries"
2649 depends on MIPS32_COMPAT
2651 Select this option if you want to run o32 binaries. These are pure
2652 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2653 existing binaries are in this format.
2658 bool "Kernel support for n32 binaries"
2659 depends on MIPS32_COMPAT
2661 Select this option if you want to run n32 binaries. These are
2662 64-bit binaries using 32-bit quantities for addressing and certain
2663 data that would normally be 64-bit. They are used in special
2670 default y if MIPS32_O32 || MIPS32_N32
2674 menu "Power management options"
2676 config ARCH_HIBERNATION_POSSIBLE
2678 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2680 config ARCH_SUSPEND_POSSIBLE
2682 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2684 source "kernel/power/Kconfig"
2688 config MIPS_EXTERNAL_TIMER
2691 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2692 menu "CPU Power Management"
2693 source "drivers/cpufreq/Kconfig"
2697 source "net/Kconfig"
2699 source "drivers/Kconfig"
2701 source "drivers/firmware/Kconfig"
2705 source "arch/mips/Kconfig.debug"
2707 source "security/Kconfig"
2709 source "crypto/Kconfig"
2711 source "lib/Kconfig"
2713 source "arch/mips/kvm/Kconfig"