xref: /openbmc/linux/arch/mips/Kconfig (revision 05f5507f)
1config MIPS
2	bool
3	default y
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
8	select HAVE_IDE
9	select HAVE_OPROFILE
10	select HAVE_PERF_EVENTS
11	select PERF_USE_VMALLOC
12	select HAVE_ARCH_KGDB
13	select HAVE_ARCH_SECCOMP_FILTER
14	select HAVE_ARCH_TRACEHOOK
15	select HAVE_BPF_JIT if !CPU_MICROMIPS
16	select ARCH_HAVE_CUSTOM_GPIO_H
17	select HAVE_FUNCTION_TRACER
18	select HAVE_DYNAMIC_FTRACE
19	select HAVE_FTRACE_MCOUNT_RECORD
20	select HAVE_C_RECORDMCOUNT
21	select HAVE_FUNCTION_GRAPH_TRACER
22	select HAVE_KPROBES
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
31	select HAVE_DMA_ATTRS
32	select HAVE_DMA_CONTIGUOUS
33	select HAVE_DMA_API_DEBUG
34	select GENERIC_IRQ_PROBE
35	select GENERIC_IRQ_SHOW
36	select GENERIC_PCI_IOMAP
37	select HAVE_ARCH_JUMP_LABEL
38	select ARCH_WANT_IPC_PARSE_VERSION
39	select IRQ_FORCED_THREADING
40	select HAVE_MEMBLOCK
41	select HAVE_MEMBLOCK_NODE_MAP
42	select ARCH_DISCARD_MEMBLOCK
43	select GENERIC_SMP_IDLE_THREAD
44	select BUILDTIME_EXTABLE_SORT
45	select GENERIC_CLOCKEVENTS
46	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
47	select GENERIC_CMOS_UPDATE
48	select HAVE_MOD_ARCH_SPECIFIC
49	select VIRT_TO_BUS
50	select MODULES_USE_ELF_REL if MODULES
51	select MODULES_USE_ELF_RELA if MODULES && 64BIT
52	select CLONE_BACKWARDS
53	select HAVE_DEBUG_STACKOVERFLOW
54	select HAVE_CC_STACKPROTECTOR
55	select CPU_PM if CPU_IDLE
56	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
57	select ARCH_BINFMT_ELF_STATE
58	select SYSCTL_EXCEPTION_TRACE
59	select HAVE_VIRT_CPU_ACCOUNTING_GEN
60	select HAVE_IRQ_TIME_ACCOUNTING
61
62menu "Machine selection"
63
64choice
65	prompt "System type"
66	default SGI_IP22
67
68config MIPS_ALCHEMY
69	bool "Alchemy processor based machines"
70	select ARCH_PHYS_ADDR_T_64BIT
71	select CEVT_R4K
72	select CSRC_R4K
73	select IRQ_CPU
74	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
75	select SYS_HAS_CPU_MIPS32_R1
76	select SYS_SUPPORTS_32BIT_KERNEL
77	select SYS_SUPPORTS_APM_EMULATION
78	select ARCH_REQUIRE_GPIOLIB
79	select SYS_SUPPORTS_ZBOOT
80	select COMMON_CLK
81
82config AR7
83	bool "Texas Instruments AR7"
84	select BOOT_ELF32
85	select DMA_NONCOHERENT
86	select CEVT_R4K
87	select CSRC_R4K
88	select IRQ_CPU
89	select NO_EXCEPT_FILL
90	select SWAP_IO_SPACE
91	select SYS_HAS_CPU_MIPS32_R1
92	select SYS_HAS_EARLY_PRINTK
93	select SYS_SUPPORTS_32BIT_KERNEL
94	select SYS_SUPPORTS_LITTLE_ENDIAN
95	select SYS_SUPPORTS_MIPS16
96	select SYS_SUPPORTS_ZBOOT_UART16550
97	select ARCH_REQUIRE_GPIOLIB
98	select VLYNQ
99	select HAVE_CLK
100	help
101	  Support for the Texas Instruments AR7 System-on-a-Chip
102	  family: TNETD7100, 7200 and 7300.
103
104config ATH25
105	bool "Atheros AR231x/AR531x SoC support"
106	select CEVT_R4K
107	select CSRC_R4K
108	select DMA_NONCOHERENT
109	select IRQ_CPU
110	select IRQ_DOMAIN
111	select SYS_HAS_CPU_MIPS32_R1
112	select SYS_SUPPORTS_BIG_ENDIAN
113	select SYS_SUPPORTS_32BIT_KERNEL
114	select SYS_HAS_EARLY_PRINTK
115	help
116	  Support for Atheros AR231x and Atheros AR531x based boards
117
118config ATH79
119	bool "Atheros AR71XX/AR724X/AR913X based boards"
120	select ARCH_REQUIRE_GPIOLIB
121	select BOOT_RAW
122	select CEVT_R4K
123	select CSRC_R4K
124	select DMA_NONCOHERENT
125	select HAVE_CLK
126	select CLKDEV_LOOKUP
127	select IRQ_CPU
128	select MIPS_MACHINE
129	select SYS_HAS_CPU_MIPS32_R2
130	select SYS_HAS_EARLY_PRINTK
131	select SYS_SUPPORTS_32BIT_KERNEL
132	select SYS_SUPPORTS_BIG_ENDIAN
133	select SYS_SUPPORTS_MIPS16
134	help
135	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
136
137config BMIPS_GENERIC
138	bool "Broadcom Generic BMIPS kernel"
139	select BOOT_RAW
140	select NO_EXCEPT_FILL
141	select USE_OF
142	select CEVT_R4K
143	select CSRC_R4K
144	select SYNC_R4K
145	select COMMON_CLK
146	select BCM7038_L1_IRQ
147	select BCM7120_L2_IRQ
148	select BRCMSTB_L2_IRQ
149	select IRQ_CPU
150	select RAW_IRQ_ACCESSORS
151	select DMA_NONCOHERENT
152	select SYS_SUPPORTS_32BIT_KERNEL
153	select SYS_SUPPORTS_LITTLE_ENDIAN
154	select SYS_SUPPORTS_BIG_ENDIAN
155	select SYS_SUPPORTS_HIGHMEM
156	select SYS_HAS_CPU_BMIPS32_3300
157	select SYS_HAS_CPU_BMIPS4350
158	select SYS_HAS_CPU_BMIPS4380
159	select SYS_HAS_CPU_BMIPS5000
160	select SWAP_IO_SPACE
161	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
162	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
163	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
164	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
165	help
166	  Build a generic DT-based kernel image that boots on select
167	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
168	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
169	  must be set appropriately for your board.
170
171config BCM47XX
172	bool "Broadcom BCM47XX based boards"
173	select ARCH_WANT_OPTIONAL_GPIOLIB
174	select BOOT_RAW
175	select CEVT_R4K
176	select CSRC_R4K
177	select DMA_NONCOHERENT
178	select HW_HAS_PCI
179	select IRQ_CPU
180	select SYS_HAS_CPU_MIPS32_R1
181	select NO_EXCEPT_FILL
182	select SYS_SUPPORTS_32BIT_KERNEL
183	select SYS_SUPPORTS_LITTLE_ENDIAN
184	select SYS_SUPPORTS_MIPS16
185	select SYS_HAS_EARLY_PRINTK
186	select USE_GENERIC_EARLY_PRINTK_8250
187	select GPIOLIB
188	select LEDS_GPIO_REGISTER
189	help
190	 Support for BCM47XX based boards
191
192config BCM63XX
193	bool "Broadcom BCM63XX based boards"
194	select BOOT_RAW
195	select CEVT_R4K
196	select CSRC_R4K
197	select SYNC_R4K
198	select DMA_NONCOHERENT
199	select IRQ_CPU
200	select SYS_SUPPORTS_32BIT_KERNEL
201	select SYS_SUPPORTS_BIG_ENDIAN
202	select SYS_HAS_EARLY_PRINTK
203	select SWAP_IO_SPACE
204	select ARCH_REQUIRE_GPIOLIB
205	select HAVE_CLK
206	select MIPS_L1_CACHE_SHIFT_4
207	help
208	 Support for BCM63XX based boards
209
210config MIPS_COBALT
211	bool "Cobalt Server"
212	select CEVT_R4K
213	select CSRC_R4K
214	select CEVT_GT641XX
215	select DMA_NONCOHERENT
216	select HW_HAS_PCI
217	select I8253
218	select I8259
219	select IRQ_CPU
220	select IRQ_GT641XX
221	select PCI_GT64XXX_PCI0
222	select PCI
223	select SYS_HAS_CPU_NEVADA
224	select SYS_HAS_EARLY_PRINTK
225	select SYS_SUPPORTS_32BIT_KERNEL
226	select SYS_SUPPORTS_64BIT_KERNEL
227	select SYS_SUPPORTS_LITTLE_ENDIAN
228	select USE_GENERIC_EARLY_PRINTK_8250
229
230config MACH_DECSTATION
231	bool "DECstations"
232	select BOOT_ELF32
233	select CEVT_DS1287
234	select CEVT_R4K if CPU_R4X00
235	select CSRC_IOASIC
236	select CSRC_R4K if CPU_R4X00
237	select CPU_DADDI_WORKAROUNDS if 64BIT
238	select CPU_R4000_WORKAROUNDS if 64BIT
239	select CPU_R4400_WORKAROUNDS if 64BIT
240	select DMA_NONCOHERENT
241	select NO_IOPORT_MAP
242	select IRQ_CPU
243	select SYS_HAS_CPU_R3000
244	select SYS_HAS_CPU_R4X00
245	select SYS_SUPPORTS_32BIT_KERNEL
246	select SYS_SUPPORTS_64BIT_KERNEL
247	select SYS_SUPPORTS_LITTLE_ENDIAN
248	select SYS_SUPPORTS_128HZ
249	select SYS_SUPPORTS_256HZ
250	select SYS_SUPPORTS_1024HZ
251	select MIPS_L1_CACHE_SHIFT_4
252	help
253	  This enables support for DEC's MIPS based workstations.  For details
254	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
255	  DECstation porting pages on <http://decstation.unix-ag.org/>.
256
257	  If you have one of the following DECstation Models you definitely
258	  want to choose R4xx0 for the CPU Type:
259
260		DECstation 5000/50
261		DECstation 5000/150
262		DECstation 5000/260
263		DECsystem 5900/260
264
265	  otherwise choose R3000.
266
267config MACH_JAZZ
268	bool "Jazz family of machines"
269	select FW_ARC
270	select FW_ARC32
271	select ARCH_MAY_HAVE_PC_FDC
272	select CEVT_R4K
273	select CSRC_R4K
274	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
275	select GENERIC_ISA_DMA
276	select HAVE_PCSPKR_PLATFORM
277	select IRQ_CPU
278	select I8253
279	select I8259
280	select ISA
281	select SYS_HAS_CPU_R4X00
282	select SYS_SUPPORTS_32BIT_KERNEL
283	select SYS_SUPPORTS_64BIT_KERNEL
284	select SYS_SUPPORTS_100HZ
285	help
286	 This a family of machines based on the MIPS R4030 chipset which was
287	 used by several vendors to build RISC/os and Windows NT workstations.
288	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
289	 Olivetti M700-10 workstations.
290
291config MACH_JZ4740
292	bool "Ingenic JZ4740 based machines"
293	select SYS_HAS_CPU_MIPS32_R1
294	select SYS_SUPPORTS_32BIT_KERNEL
295	select SYS_SUPPORTS_LITTLE_ENDIAN
296	select SYS_SUPPORTS_ZBOOT_UART16550
297	select DMA_NONCOHERENT
298	select IRQ_CPU
299	select ARCH_REQUIRE_GPIOLIB
300	select SYS_HAS_EARLY_PRINTK
301	select HAVE_CLK
302	select GENERIC_IRQ_CHIP
303
304config LANTIQ
305	bool "Lantiq based platforms"
306	select DMA_NONCOHERENT
307	select IRQ_CPU
308	select CEVT_R4K
309	select CSRC_R4K
310	select SYS_HAS_CPU_MIPS32_R1
311	select SYS_HAS_CPU_MIPS32_R2
312	select SYS_SUPPORTS_BIG_ENDIAN
313	select SYS_SUPPORTS_32BIT_KERNEL
314	select SYS_SUPPORTS_MIPS16
315	select SYS_SUPPORTS_MULTITHREADING
316	select SYS_HAS_EARLY_PRINTK
317	select ARCH_REQUIRE_GPIOLIB
318	select SWAP_IO_SPACE
319	select BOOT_RAW
320	select HAVE_MACH_CLKDEV
321	select CLKDEV_LOOKUP
322	select USE_OF
323	select PINCTRL
324	select PINCTRL_LANTIQ
325	select ARCH_HAS_RESET_CONTROLLER
326	select RESET_CONTROLLER
327
328config LASAT
329	bool "LASAT Networks platforms"
330	select CEVT_R4K
331	select CRC32
332	select CSRC_R4K
333	select DMA_NONCOHERENT
334	select SYS_HAS_EARLY_PRINTK
335	select HW_HAS_PCI
336	select IRQ_CPU
337	select PCI_GT64XXX_PCI0
338	select MIPS_NILE4
339	select R5000_CPU_SCACHE
340	select SYS_HAS_CPU_R5000
341	select SYS_SUPPORTS_32BIT_KERNEL
342	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
343	select SYS_SUPPORTS_LITTLE_ENDIAN
344
345config MACH_LOONGSON
346	bool "Loongson family of machines"
347	select SYS_SUPPORTS_ZBOOT
348	help
349	  This enables the support of Loongson family of machines.
350
351	  Loongson is a family of general-purpose MIPS-compatible CPUs.
352	  developed at Institute of Computing Technology (ICT),
353	  Chinese Academy of Sciences (CAS) in the People's Republic
354	  of China. The chief architect is Professor Weiwu Hu.
355
356config MACH_LOONGSON1
357	bool "Loongson 1 family of machines"
358	select SYS_SUPPORTS_ZBOOT
359	help
360	  This enables support for the Loongson 1 based machines.
361
362	  Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
363	  the ICT (Institute of Computing Technology) and the Chinese Academy
364	  of Sciences.
365
366config MACH_PISTACHIO
367	bool "IMG Pistachio SoC based boards"
368	select ARCH_REQUIRE_GPIOLIB
369	select BOOT_ELF32
370	select BOOT_RAW
371	select CEVT_R4K
372	select CLKSRC_MIPS_GIC
373	select COMMON_CLK
374	select CSRC_R4K
375	select DMA_MAYBE_COHERENT
376	select IRQ_CPU
377	select LIBFDT
378	select MFD_SYSCON
379	select MIPS_CPU_SCACHE
380	select MIPS_GIC
381	select PINCTRL
382	select REGULATOR
383	select SYS_HAS_CPU_MIPS32_R2
384	select SYS_SUPPORTS_32BIT_KERNEL
385	select SYS_SUPPORTS_LITTLE_ENDIAN
386	select SYS_SUPPORTS_MIPS_CPS
387	select SYS_SUPPORTS_MULTITHREADING
388	select SYS_SUPPORTS_ZBOOT
389	select USE_OF
390	help
391	  This enables support for the IMG Pistachio SoC platform.
392
393config MIPS_MALTA
394	bool "MIPS Malta board"
395	select ARCH_MAY_HAVE_PC_FDC
396	select BOOT_ELF32
397	select BOOT_RAW
398	select CEVT_R4K
399	select CSRC_R4K
400	select CLKSRC_MIPS_GIC
401	select DMA_MAYBE_COHERENT
402	select GENERIC_ISA_DMA
403	select HAVE_PCSPKR_PLATFORM
404	select IRQ_CPU
405	select MIPS_GIC
406	select HW_HAS_PCI
407	select I8253
408	select I8259
409	select MIPS_BONITO64
410	select MIPS_CPU_SCACHE
411	select MIPS_L1_CACHE_SHIFT_6
412	select PCI_GT64XXX_PCI0
413	select MIPS_MSC
414	select SWAP_IO_SPACE
415	select SYS_HAS_CPU_MIPS32_R1
416	select SYS_HAS_CPU_MIPS32_R2
417	select SYS_HAS_CPU_MIPS32_R3_5
418	select SYS_HAS_CPU_MIPS32_R6
419	select SYS_HAS_CPU_MIPS64_R1
420	select SYS_HAS_CPU_MIPS64_R2
421	select SYS_HAS_CPU_MIPS64_R6
422	select SYS_HAS_CPU_NEVADA
423	select SYS_HAS_CPU_RM7000
424	select SYS_SUPPORTS_32BIT_KERNEL
425	select SYS_SUPPORTS_64BIT_KERNEL
426	select SYS_SUPPORTS_BIG_ENDIAN
427	select SYS_SUPPORTS_LITTLE_ENDIAN
428	select SYS_SUPPORTS_MICROMIPS
429	select SYS_SUPPORTS_MIPS_CMP
430	select SYS_SUPPORTS_MIPS_CPS
431	select SYS_SUPPORTS_MIPS16
432	select SYS_SUPPORTS_MULTITHREADING
433	select SYS_SUPPORTS_SMARTMIPS
434	select SYS_SUPPORTS_ZBOOT
435	help
436	  This enables support for the MIPS Technologies Malta evaluation
437	  board.
438
439config MIPS_SEAD3
440	bool "MIPS SEAD3 board"
441	select BOOT_ELF32
442	select BOOT_RAW
443	select BUILTIN_DTB
444	select CEVT_R4K
445	select CSRC_R4K
446	select CLKSRC_MIPS_GIC
447	select CPU_MIPSR2_IRQ_VI
448	select CPU_MIPSR2_IRQ_EI
449	select DMA_NONCOHERENT
450	select IRQ_CPU
451	select MIPS_GIC
452	select LIBFDT
453	select MIPS_MSC
454	select SYS_HAS_CPU_MIPS32_R1
455	select SYS_HAS_CPU_MIPS32_R2
456	select SYS_HAS_CPU_MIPS64_R1
457	select SYS_HAS_EARLY_PRINTK
458	select SYS_SUPPORTS_32BIT_KERNEL
459	select SYS_SUPPORTS_64BIT_KERNEL
460	select SYS_SUPPORTS_BIG_ENDIAN
461	select SYS_SUPPORTS_LITTLE_ENDIAN
462	select SYS_SUPPORTS_SMARTMIPS
463	select SYS_SUPPORTS_MICROMIPS
464	select SYS_SUPPORTS_MIPS16
465	select USB_EHCI_BIG_ENDIAN_DESC
466	select USB_EHCI_BIG_ENDIAN_MMIO
467	select USE_OF
468	help
469	  This enables support for the MIPS Technologies SEAD3 evaluation
470	  board.
471
472config NEC_MARKEINS
473	bool "NEC EMMA2RH Mark-eins board"
474	select SOC_EMMA2RH
475	select HW_HAS_PCI
476	help
477	  This enables support for the NEC Electronics Mark-eins boards.
478
479config MACH_VR41XX
480	bool "NEC VR4100 series based machines"
481	select CEVT_R4K
482	select CSRC_R4K
483	select SYS_HAS_CPU_VR41XX
484	select SYS_SUPPORTS_MIPS16
485	select ARCH_REQUIRE_GPIOLIB
486
487config NXP_STB220
488	bool "NXP STB220 board"
489	select SOC_PNX833X
490	help
491	 Support for NXP Semiconductors STB220 Development Board.
492
493config NXP_STB225
494	bool "NXP 225 board"
495	select SOC_PNX833X
496	select SOC_PNX8335
497	help
498	 Support for NXP Semiconductors STB225 Development Board.
499
500config PMC_MSP
501	bool "PMC-Sierra MSP chipsets"
502	select CEVT_R4K
503	select CSRC_R4K
504	select DMA_NONCOHERENT
505	select SWAP_IO_SPACE
506	select NO_EXCEPT_FILL
507	select BOOT_RAW
508	select SYS_HAS_CPU_MIPS32_R1
509	select SYS_HAS_CPU_MIPS32_R2
510	select SYS_SUPPORTS_32BIT_KERNEL
511	select SYS_SUPPORTS_BIG_ENDIAN
512	select SYS_SUPPORTS_MIPS16
513	select IRQ_CPU
514	select SERIAL_8250
515	select SERIAL_8250_CONSOLE
516	select USB_EHCI_BIG_ENDIAN_MMIO
517	select USB_EHCI_BIG_ENDIAN_DESC
518	help
519	  This adds support for the PMC-Sierra family of Multi-Service
520	  Processor System-On-A-Chips.  These parts include a number
521	  of integrated peripherals, interfaces and DSPs in addition to
522	  a variety of MIPS cores.
523
524config RALINK
525	bool "Ralink based machines"
526	select CEVT_R4K
527	select CSRC_R4K
528	select BOOT_RAW
529	select DMA_NONCOHERENT
530	select IRQ_CPU
531	select USE_OF
532	select SYS_HAS_CPU_MIPS32_R1
533	select SYS_HAS_CPU_MIPS32_R2
534	select SYS_SUPPORTS_32BIT_KERNEL
535	select SYS_SUPPORTS_LITTLE_ENDIAN
536	select SYS_SUPPORTS_MIPS16
537	select SYS_HAS_EARLY_PRINTK
538	select HAVE_MACH_CLKDEV
539	select CLKDEV_LOOKUP
540	select ARCH_HAS_RESET_CONTROLLER
541	select RESET_CONTROLLER
542
543config SGI_IP22
544	bool "SGI IP22 (Indy/Indigo2)"
545	select FW_ARC
546	select FW_ARC32
547	select BOOT_ELF32
548	select CEVT_R4K
549	select CSRC_R4K
550	select DEFAULT_SGI_PARTITION
551	select DMA_NONCOHERENT
552	select HW_HAS_EISA
553	select I8253
554	select I8259
555	select IP22_CPU_SCACHE
556	select IRQ_CPU
557	select GENERIC_ISA_DMA_SUPPORT_BROKEN
558	select SGI_HAS_I8042
559	select SGI_HAS_INDYDOG
560	select SGI_HAS_HAL2
561	select SGI_HAS_SEEQ
562	select SGI_HAS_WD93
563	select SGI_HAS_ZILOG
564	select SWAP_IO_SPACE
565	select SYS_HAS_CPU_R4X00
566	select SYS_HAS_CPU_R5000
567	#
568	# Disable EARLY_PRINTK for now since it leads to overwritten prom
569	# memory during early boot on some machines.
570	#
571	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
572	# for a more details discussion
573	#
574	# select SYS_HAS_EARLY_PRINTK
575	select SYS_SUPPORTS_32BIT_KERNEL
576	select SYS_SUPPORTS_64BIT_KERNEL
577	select SYS_SUPPORTS_BIG_ENDIAN
578	select MIPS_L1_CACHE_SHIFT_7
579	help
580	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
581	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
582	  that runs on these, say Y here.
583
584config SGI_IP27
585	bool "SGI IP27 (Origin200/2000)"
586	select FW_ARC
587	select FW_ARC64
588	select BOOT_ELF64
589	select DEFAULT_SGI_PARTITION
590	select DMA_COHERENT
591	select SYS_HAS_EARLY_PRINTK
592	select HW_HAS_PCI
593	select NR_CPUS_DEFAULT_64
594	select SYS_HAS_CPU_R10000
595	select SYS_SUPPORTS_64BIT_KERNEL
596	select SYS_SUPPORTS_BIG_ENDIAN
597	select SYS_SUPPORTS_NUMA
598	select SYS_SUPPORTS_SMP
599	select MIPS_L1_CACHE_SHIFT_7
600	help
601	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
602	  workstations.  To compile a Linux kernel that runs on these, say Y
603	  here.
604
605config SGI_IP28
606	bool "SGI IP28 (Indigo2 R10k)"
607	select FW_ARC
608	select FW_ARC64
609	select BOOT_ELF64
610	select CEVT_R4K
611	select CSRC_R4K
612	select DEFAULT_SGI_PARTITION
613	select DMA_NONCOHERENT
614	select GENERIC_ISA_DMA_SUPPORT_BROKEN
615	select IRQ_CPU
616	select HW_HAS_EISA
617	select I8253
618	select I8259
619	select SGI_HAS_I8042
620	select SGI_HAS_INDYDOG
621	select SGI_HAS_HAL2
622	select SGI_HAS_SEEQ
623	select SGI_HAS_WD93
624	select SGI_HAS_ZILOG
625	select SWAP_IO_SPACE
626	select SYS_HAS_CPU_R10000
627	#
628	# Disable EARLY_PRINTK for now since it leads to overwritten prom
629	# memory during early boot on some machines.
630	#
631	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
632	# for a more details discussion
633	#
634	# select SYS_HAS_EARLY_PRINTK
635	select SYS_SUPPORTS_64BIT_KERNEL
636	select SYS_SUPPORTS_BIG_ENDIAN
637	select MIPS_L1_CACHE_SHIFT_7
638      help
639        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
640        kernel that runs on these, say Y here.
641
642config SGI_IP32
643	bool "SGI IP32 (O2)"
644	select FW_ARC
645	select FW_ARC32
646	select BOOT_ELF32
647	select CEVT_R4K
648	select CSRC_R4K
649	select DMA_NONCOHERENT
650	select HW_HAS_PCI
651	select IRQ_CPU
652	select R5000_CPU_SCACHE
653	select RM7000_CPU_SCACHE
654	select SYS_HAS_CPU_R5000
655	select SYS_HAS_CPU_R10000 if BROKEN
656	select SYS_HAS_CPU_RM7000
657	select SYS_HAS_CPU_NEVADA
658	select SYS_SUPPORTS_64BIT_KERNEL
659	select SYS_SUPPORTS_BIG_ENDIAN
660	help
661	  If you want this kernel to run on SGI O2 workstation, say Y here.
662
663config SIBYTE_CRHINE
664	bool "Sibyte BCM91120C-CRhine"
665	select BOOT_ELF32
666	select DMA_COHERENT
667	select SIBYTE_BCM1120
668	select SWAP_IO_SPACE
669	select SYS_HAS_CPU_SB1
670	select SYS_SUPPORTS_BIG_ENDIAN
671	select SYS_SUPPORTS_LITTLE_ENDIAN
672
673config SIBYTE_CARMEL
674	bool "Sibyte BCM91120x-Carmel"
675	select BOOT_ELF32
676	select DMA_COHERENT
677	select SIBYTE_BCM1120
678	select SWAP_IO_SPACE
679	select SYS_HAS_CPU_SB1
680	select SYS_SUPPORTS_BIG_ENDIAN
681	select SYS_SUPPORTS_LITTLE_ENDIAN
682
683config SIBYTE_CRHONE
684	bool "Sibyte BCM91125C-CRhone"
685	select BOOT_ELF32
686	select DMA_COHERENT
687	select SIBYTE_BCM1125
688	select SWAP_IO_SPACE
689	select SYS_HAS_CPU_SB1
690	select SYS_SUPPORTS_BIG_ENDIAN
691	select SYS_SUPPORTS_HIGHMEM
692	select SYS_SUPPORTS_LITTLE_ENDIAN
693
694config SIBYTE_RHONE
695	bool "Sibyte BCM91125E-Rhone"
696	select BOOT_ELF32
697	select DMA_COHERENT
698	select SIBYTE_BCM1125H
699	select SWAP_IO_SPACE
700	select SYS_HAS_CPU_SB1
701	select SYS_SUPPORTS_BIG_ENDIAN
702	select SYS_SUPPORTS_LITTLE_ENDIAN
703
704config SIBYTE_SWARM
705	bool "Sibyte BCM91250A-SWARM"
706	select BOOT_ELF32
707	select DMA_COHERENT
708	select HAVE_PATA_PLATFORM
709	select SIBYTE_SB1250
710	select SWAP_IO_SPACE
711	select SYS_HAS_CPU_SB1
712	select SYS_SUPPORTS_BIG_ENDIAN
713	select SYS_SUPPORTS_HIGHMEM
714	select SYS_SUPPORTS_LITTLE_ENDIAN
715	select ZONE_DMA32 if 64BIT
716
717config SIBYTE_LITTLESUR
718	bool "Sibyte BCM91250C2-LittleSur"
719	select BOOT_ELF32
720	select DMA_COHERENT
721	select HAVE_PATA_PLATFORM
722	select SIBYTE_SB1250
723	select SWAP_IO_SPACE
724	select SYS_HAS_CPU_SB1
725	select SYS_SUPPORTS_BIG_ENDIAN
726	select SYS_SUPPORTS_HIGHMEM
727	select SYS_SUPPORTS_LITTLE_ENDIAN
728
729config SIBYTE_SENTOSA
730	bool "Sibyte BCM91250E-Sentosa"
731	select BOOT_ELF32
732	select DMA_COHERENT
733	select SIBYTE_SB1250
734	select SWAP_IO_SPACE
735	select SYS_HAS_CPU_SB1
736	select SYS_SUPPORTS_BIG_ENDIAN
737	select SYS_SUPPORTS_LITTLE_ENDIAN
738
739config SIBYTE_BIGSUR
740	bool "Sibyte BCM91480B-BigSur"
741	select BOOT_ELF32
742	select DMA_COHERENT
743	select NR_CPUS_DEFAULT_4
744	select SIBYTE_BCM1x80
745	select SWAP_IO_SPACE
746	select SYS_HAS_CPU_SB1
747	select SYS_SUPPORTS_BIG_ENDIAN
748	select SYS_SUPPORTS_HIGHMEM
749	select SYS_SUPPORTS_LITTLE_ENDIAN
750	select ZONE_DMA32 if 64BIT
751
752config SNI_RM
753	bool "SNI RM200/300/400"
754	select FW_ARC if CPU_LITTLE_ENDIAN
755	select FW_ARC32 if CPU_LITTLE_ENDIAN
756	select FW_SNIPROM if CPU_BIG_ENDIAN
757	select ARCH_MAY_HAVE_PC_FDC
758	select BOOT_ELF32
759	select CEVT_R4K
760	select CSRC_R4K
761	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
762	select DMA_NONCOHERENT
763	select GENERIC_ISA_DMA
764	select HAVE_PCSPKR_PLATFORM
765	select HW_HAS_EISA
766	select HW_HAS_PCI
767	select IRQ_CPU
768	select I8253
769	select I8259
770	select ISA
771	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
772	select SYS_HAS_CPU_R4X00
773	select SYS_HAS_CPU_R5000
774	select SYS_HAS_CPU_R10000
775	select R5000_CPU_SCACHE
776	select SYS_HAS_EARLY_PRINTK
777	select SYS_SUPPORTS_32BIT_KERNEL
778	select SYS_SUPPORTS_64BIT_KERNEL
779	select SYS_SUPPORTS_BIG_ENDIAN
780	select SYS_SUPPORTS_HIGHMEM
781	select SYS_SUPPORTS_LITTLE_ENDIAN
782	help
783	  The SNI RM200/300/400 are MIPS-based machines manufactured by
784	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
785	  Technology and now in turn merged with Fujitsu.  Say Y here to
786	  support this machine type.
787
788config MACH_TX39XX
789	bool "Toshiba TX39 series based machines"
790
791config MACH_TX49XX
792	bool "Toshiba TX49 series based machines"
793
794config MIKROTIK_RB532
795	bool "Mikrotik RB532 boards"
796	select CEVT_R4K
797	select CSRC_R4K
798	select DMA_NONCOHERENT
799	select HW_HAS_PCI
800	select IRQ_CPU
801	select SYS_HAS_CPU_MIPS32_R1
802	select SYS_SUPPORTS_32BIT_KERNEL
803	select SYS_SUPPORTS_LITTLE_ENDIAN
804	select SWAP_IO_SPACE
805	select BOOT_RAW
806	select ARCH_REQUIRE_GPIOLIB
807	select MIPS_L1_CACHE_SHIFT_4
808	help
809	  Support the Mikrotik(tm) RouterBoard 532 series,
810	  based on the IDT RC32434 SoC.
811
812config CAVIUM_OCTEON_SOC
813	bool "Cavium Networks Octeon SoC based boards"
814	select CEVT_R4K
815	select ARCH_PHYS_ADDR_T_64BIT
816	select DMA_COHERENT
817	select SYS_SUPPORTS_64BIT_KERNEL
818	select SYS_SUPPORTS_BIG_ENDIAN
819	select EDAC_SUPPORT
820	select SYS_SUPPORTS_LITTLE_ENDIAN
821	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
822	select SYS_HAS_EARLY_PRINTK
823	select SYS_HAS_CPU_CAVIUM_OCTEON
824	select SWAP_IO_SPACE
825	select HW_HAS_PCI
826	select ZONE_DMA32
827	select HOLES_IN_ZONE
828	select ARCH_REQUIRE_GPIOLIB
829	select LIBFDT
830	select USE_OF
831	select ARCH_SPARSEMEM_ENABLE
832	select SYS_SUPPORTS_SMP
833	select NR_CPUS_DEFAULT_16
834	select BUILTIN_DTB
835	select MTD_COMPLEX_MAPPINGS
836	help
837	  This option supports all of the Octeon reference boards from Cavium
838	  Networks. It builds a kernel that dynamically determines the Octeon
839	  CPU type and supports all known board reference implementations.
840	  Some of the supported boards are:
841		EBT3000
842		EBH3000
843		EBH3100
844		Thunder
845		Kodama
846		Hikari
847	  Say Y here for most Octeon reference boards.
848
849config NLM_XLR_BOARD
850	bool "Netlogic XLR/XLS based systems"
851	select BOOT_ELF32
852	select NLM_COMMON
853	select SYS_HAS_CPU_XLR
854	select SYS_SUPPORTS_SMP
855	select HW_HAS_PCI
856	select SWAP_IO_SPACE
857	select SYS_SUPPORTS_32BIT_KERNEL
858	select SYS_SUPPORTS_64BIT_KERNEL
859	select ARCH_PHYS_ADDR_T_64BIT
860	select SYS_SUPPORTS_BIG_ENDIAN
861	select SYS_SUPPORTS_HIGHMEM
862	select DMA_COHERENT
863	select NR_CPUS_DEFAULT_32
864	select CEVT_R4K
865	select CSRC_R4K
866	select IRQ_CPU
867	select ZONE_DMA32 if 64BIT
868	select SYNC_R4K
869	select SYS_HAS_EARLY_PRINTK
870	select SYS_SUPPORTS_ZBOOT
871	select SYS_SUPPORTS_ZBOOT_UART16550
872	help
873	  Support for systems based on Netlogic XLR and XLS processors.
874	  Say Y here if you have a XLR or XLS based board.
875
876config NLM_XLP_BOARD
877	bool "Netlogic XLP based systems"
878	select BOOT_ELF32
879	select NLM_COMMON
880	select SYS_HAS_CPU_XLP
881	select SYS_SUPPORTS_SMP
882	select HW_HAS_PCI
883	select SYS_SUPPORTS_32BIT_KERNEL
884	select SYS_SUPPORTS_64BIT_KERNEL
885	select ARCH_PHYS_ADDR_T_64BIT
886	select SYS_SUPPORTS_BIG_ENDIAN
887	select SYS_SUPPORTS_LITTLE_ENDIAN
888	select SYS_SUPPORTS_HIGHMEM
889	select DMA_COHERENT
890	select NR_CPUS_DEFAULT_32
891	select CEVT_R4K
892	select CSRC_R4K
893	select IRQ_CPU
894	select ZONE_DMA32 if 64BIT
895	select SYNC_R4K
896	select SYS_HAS_EARLY_PRINTK
897	select USE_OF
898	select SYS_SUPPORTS_ZBOOT
899	select SYS_SUPPORTS_ZBOOT_UART16550
900	help
901	  This board is based on Netlogic XLP Processor.
902	  Say Y here if you have a XLP based board.
903
904config MIPS_PARAVIRT
905	bool "Para-Virtualized guest system"
906	select CEVT_R4K
907	select CSRC_R4K
908	select DMA_COHERENT
909	select SYS_SUPPORTS_64BIT_KERNEL
910	select SYS_SUPPORTS_32BIT_KERNEL
911	select SYS_SUPPORTS_BIG_ENDIAN
912	select SYS_SUPPORTS_SMP
913	select NR_CPUS_DEFAULT_4
914	select SYS_HAS_EARLY_PRINTK
915	select SYS_HAS_CPU_MIPS32_R2
916	select SYS_HAS_CPU_MIPS64_R2
917	select SYS_HAS_CPU_CAVIUM_OCTEON
918	select HW_HAS_PCI
919	select SWAP_IO_SPACE
920	help
921	  This option supports guest running under ????
922
923endchoice
924
925source "arch/mips/alchemy/Kconfig"
926source "arch/mips/ath25/Kconfig"
927source "arch/mips/ath79/Kconfig"
928source "arch/mips/bcm47xx/Kconfig"
929source "arch/mips/bcm63xx/Kconfig"
930source "arch/mips/bmips/Kconfig"
931source "arch/mips/jazz/Kconfig"
932source "arch/mips/jz4740/Kconfig"
933source "arch/mips/lantiq/Kconfig"
934source "arch/mips/lasat/Kconfig"
935source "arch/mips/pmcs-msp71xx/Kconfig"
936source "arch/mips/ralink/Kconfig"
937source "arch/mips/sgi-ip27/Kconfig"
938source "arch/mips/sibyte/Kconfig"
939source "arch/mips/txx9/Kconfig"
940source "arch/mips/vr41xx/Kconfig"
941source "arch/mips/cavium-octeon/Kconfig"
942source "arch/mips/loongson/Kconfig"
943source "arch/mips/loongson1/Kconfig"
944source "arch/mips/netlogic/Kconfig"
945source "arch/mips/paravirt/Kconfig"
946
947endmenu
948
949config RWSEM_GENERIC_SPINLOCK
950	bool
951	default y
952
953config RWSEM_XCHGADD_ALGORITHM
954	bool
955
956config ARCH_HAS_ILOG2_U32
957	bool
958	default n
959
960config ARCH_HAS_ILOG2_U64
961	bool
962	default n
963
964config GENERIC_HWEIGHT
965	bool
966	default y
967
968config GENERIC_CALIBRATE_DELAY
969	bool
970	default y
971
972config SCHED_OMIT_FRAME_POINTER
973	bool
974	default y
975
976#
977# Select some configuration options automatically based on user selections.
978#
979config FW_ARC
980	bool
981
982config ARCH_MAY_HAVE_PC_FDC
983	bool
984
985config BOOT_RAW
986	bool
987
988config CEVT_BCM1480
989	bool
990
991config CEVT_DS1287
992	bool
993
994config CEVT_GT641XX
995	bool
996
997config CEVT_R4K
998	bool
999
1000config CEVT_SB1250
1001	bool
1002
1003config CEVT_TXX9
1004	bool
1005
1006config CSRC_BCM1480
1007	bool
1008
1009config CSRC_IOASIC
1010	bool
1011
1012config CSRC_R4K
1013	bool
1014
1015config CSRC_SB1250
1016	bool
1017
1018config GPIO_TXX9
1019	select ARCH_REQUIRE_GPIOLIB
1020	bool
1021
1022config FW_CFE
1023	bool
1024
1025config ARCH_DMA_ADDR_T_64BIT
1026	def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1027
1028config DMA_MAYBE_COHERENT
1029	select DMA_NONCOHERENT
1030	bool
1031
1032config DMA_COHERENT
1033	bool
1034
1035config DMA_NONCOHERENT
1036	bool
1037	select NEED_DMA_MAP_STATE
1038
1039config NEED_DMA_MAP_STATE
1040	bool
1041
1042config SYS_HAS_EARLY_PRINTK
1043	bool
1044
1045config HOTPLUG_CPU
1046	bool "Support for hot-pluggable CPUs"
1047	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1048	help
1049	  Say Y here to allow turning CPUs off and on. CPUs can be
1050	  controlled through /sys/devices/system/cpu.
1051	  (Note: power management support will enable this option
1052	    automatically on SMP systems. )
1053	  Say N if you want to disable CPU hotplug.
1054
1055config SYS_SUPPORTS_HOTPLUG_CPU
1056	bool
1057
1058config I8259
1059	bool
1060	select IRQ_DOMAIN
1061
1062config MIPS_BONITO64
1063	bool
1064
1065config MIPS_MSC
1066	bool
1067
1068config MIPS_NILE4
1069	bool
1070
1071config SYNC_R4K
1072	bool
1073
1074config MIPS_MACHINE
1075	def_bool n
1076
1077config NO_IOPORT_MAP
1078	def_bool n
1079
1080config GENERIC_CSUM
1081	bool
1082
1083config GENERIC_ISA_DMA
1084	bool
1085	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1086	select ISA_DMA_API
1087
1088config GENERIC_ISA_DMA_SUPPORT_BROKEN
1089	bool
1090	select GENERIC_ISA_DMA
1091
1092config ISA_DMA_API
1093	bool
1094
1095config HOLES_IN_ZONE
1096	bool
1097
1098#
1099# Endianness selection.  Sufficiently obscure so many users don't know what to
1100# answer,so we try hard to limit the available choices.  Also the use of a
1101# choice statement should be more obvious to the user.
1102#
1103choice
1104	prompt "Endianness selection"
1105	help
1106	  Some MIPS machines can be configured for either little or big endian
1107	  byte order. These modes require different kernels and a different
1108	  Linux distribution.  In general there is one preferred byteorder for a
1109	  particular system but some systems are just as commonly used in the
1110	  one or the other endianness.
1111
1112config CPU_BIG_ENDIAN
1113	bool "Big endian"
1114	depends on SYS_SUPPORTS_BIG_ENDIAN
1115
1116config CPU_LITTLE_ENDIAN
1117	bool "Little endian"
1118	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1119
1120endchoice
1121
1122config EXPORT_UASM
1123	bool
1124
1125config SYS_SUPPORTS_APM_EMULATION
1126	bool
1127
1128config SYS_SUPPORTS_BIG_ENDIAN
1129	bool
1130
1131config SYS_SUPPORTS_LITTLE_ENDIAN
1132	bool
1133
1134config SYS_SUPPORTS_HUGETLBFS
1135	bool
1136	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1137	default y
1138
1139config MIPS_HUGE_TLB_SUPPORT
1140	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1141
1142config IRQ_CPU
1143	bool
1144	select IRQ_DOMAIN
1145
1146config IRQ_CPU_RM7K
1147	bool
1148
1149config IRQ_MSP_SLP
1150	bool
1151
1152config IRQ_MSP_CIC
1153	bool
1154
1155config IRQ_TXX9
1156	bool
1157
1158config IRQ_GT641XX
1159	bool
1160
1161config PCI_GT64XXX_PCI0
1162	bool
1163
1164config NO_EXCEPT_FILL
1165	bool
1166
1167config SOC_EMMA2RH
1168	bool
1169	select CEVT_R4K
1170	select CSRC_R4K
1171	select DMA_NONCOHERENT
1172	select IRQ_CPU
1173	select SWAP_IO_SPACE
1174	select SYS_HAS_CPU_R5500
1175	select SYS_SUPPORTS_32BIT_KERNEL
1176	select SYS_SUPPORTS_64BIT_KERNEL
1177	select SYS_SUPPORTS_BIG_ENDIAN
1178
1179config SOC_PNX833X
1180	bool
1181	select CEVT_R4K
1182	select CSRC_R4K
1183	select IRQ_CPU
1184	select DMA_NONCOHERENT
1185	select SYS_HAS_CPU_MIPS32_R2
1186	select SYS_SUPPORTS_32BIT_KERNEL
1187	select SYS_SUPPORTS_LITTLE_ENDIAN
1188	select SYS_SUPPORTS_BIG_ENDIAN
1189	select SYS_SUPPORTS_MIPS16
1190	select CPU_MIPSR2_IRQ_VI
1191
1192config SOC_PNX8335
1193	bool
1194	select SOC_PNX833X
1195
1196config MIPS_SPRAM
1197	bool
1198
1199config SWAP_IO_SPACE
1200	bool
1201
1202config SGI_HAS_INDYDOG
1203	bool
1204
1205config SGI_HAS_HAL2
1206	bool
1207
1208config SGI_HAS_SEEQ
1209	bool
1210
1211config SGI_HAS_WD93
1212	bool
1213
1214config SGI_HAS_ZILOG
1215	bool
1216
1217config SGI_HAS_I8042
1218	bool
1219
1220config DEFAULT_SGI_PARTITION
1221	bool
1222
1223config FW_ARC32
1224	bool
1225
1226config FW_SNIPROM
1227	bool
1228
1229config BOOT_ELF32
1230	bool
1231
1232config MIPS_L1_CACHE_SHIFT_4
1233	bool
1234
1235config MIPS_L1_CACHE_SHIFT_5
1236	bool
1237
1238config MIPS_L1_CACHE_SHIFT_6
1239	bool
1240
1241config MIPS_L1_CACHE_SHIFT_7
1242	bool
1243
1244config MIPS_L1_CACHE_SHIFT
1245	int
1246	default "7" if MIPS_L1_CACHE_SHIFT_7
1247	default "6" if MIPS_L1_CACHE_SHIFT_6
1248	default "5" if MIPS_L1_CACHE_SHIFT_5
1249	default "4" if MIPS_L1_CACHE_SHIFT_4
1250	default "5"
1251
1252config HAVE_STD_PC_SERIAL_PORT
1253	bool
1254
1255config ARC_CONSOLE
1256	bool "ARC console support"
1257	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1258
1259config ARC_MEMORY
1260	bool
1261	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1262	default y
1263
1264config ARC_PROMLIB
1265	bool
1266	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1267	default y
1268
1269config FW_ARC64
1270	bool
1271
1272config BOOT_ELF64
1273	bool
1274
1275menu "CPU selection"
1276
1277choice
1278	prompt "CPU type"
1279	default CPU_R4X00
1280
1281config CPU_LOONGSON3
1282	bool "Loongson 3 CPU"
1283	depends on SYS_HAS_CPU_LOONGSON3
1284	select CPU_SUPPORTS_64BIT_KERNEL
1285	select CPU_SUPPORTS_HIGHMEM
1286	select CPU_SUPPORTS_HUGEPAGES
1287	select WEAK_ORDERING
1288	select WEAK_REORDERING_BEYOND_LLSC
1289	help
1290		The Loongson 3 processor implements the MIPS64R2 instruction
1291		set with many extensions.
1292
1293config CPU_LOONGSON2E
1294	bool "Loongson 2E"
1295	depends on SYS_HAS_CPU_LOONGSON2E
1296	select CPU_LOONGSON2
1297	help
1298	  The Loongson 2E processor implements the MIPS III instruction set
1299	  with many extensions.
1300
1301	  It has an internal FPGA northbridge, which is compatible to
1302	  bonito64.
1303
1304config CPU_LOONGSON2F
1305	bool "Loongson 2F"
1306	depends on SYS_HAS_CPU_LOONGSON2F
1307	select CPU_LOONGSON2
1308	select ARCH_REQUIRE_GPIOLIB
1309	help
1310	  The Loongson 2F processor implements the MIPS III instruction set
1311	  with many extensions.
1312
1313	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1314	  have a similar programming interface with FPGA northbridge used in
1315	  Loongson2E.
1316
1317config CPU_LOONGSON1B
1318	bool "Loongson 1B"
1319	depends on SYS_HAS_CPU_LOONGSON1B
1320	select CPU_LOONGSON1
1321	help
1322	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1323	  release 2 instruction set.
1324
1325config CPU_MIPS32_R1
1326	bool "MIPS32 Release 1"
1327	depends on SYS_HAS_CPU_MIPS32_R1
1328	select CPU_HAS_PREFETCH
1329	select CPU_SUPPORTS_32BIT_KERNEL
1330	select CPU_SUPPORTS_HIGHMEM
1331	help
1332	  Choose this option to build a kernel for release 1 or later of the
1333	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1334	  MIPS processor are based on a MIPS32 processor.  If you know the
1335	  specific type of processor in your system, choose those that one
1336	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1337	  Release 2 of the MIPS32 architecture is available since several
1338	  years so chances are you even have a MIPS32 Release 2 processor
1339	  in which case you should choose CPU_MIPS32_R2 instead for better
1340	  performance.
1341
1342config CPU_MIPS32_R2
1343	bool "MIPS32 Release 2"
1344	depends on SYS_HAS_CPU_MIPS32_R2
1345	select CPU_HAS_PREFETCH
1346	select CPU_SUPPORTS_32BIT_KERNEL
1347	select CPU_SUPPORTS_HIGHMEM
1348	select CPU_SUPPORTS_MSA
1349	select HAVE_KVM
1350	help
1351	  Choose this option to build a kernel for release 2 or later of the
1352	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1353	  MIPS processor are based on a MIPS32 processor.  If you know the
1354	  specific type of processor in your system, choose those that one
1355	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1356
1357config CPU_MIPS32_R6
1358	bool "MIPS32 Release 6 (EXPERIMENTAL)"
1359	depends on SYS_HAS_CPU_MIPS32_R6
1360	select CPU_HAS_PREFETCH
1361	select CPU_SUPPORTS_32BIT_KERNEL
1362	select CPU_SUPPORTS_HIGHMEM
1363	select CPU_SUPPORTS_MSA
1364	select GENERIC_CSUM
1365	select HAVE_KVM
1366	select MIPS_O32_FP64_SUPPORT
1367	help
1368	  Choose this option to build a kernel for release 6 or later of the
1369	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1370	  family, are based on a MIPS32r6 processor. If you own an older
1371	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1372
1373config CPU_MIPS64_R1
1374	bool "MIPS64 Release 1"
1375	depends on SYS_HAS_CPU_MIPS64_R1
1376	select CPU_HAS_PREFETCH
1377	select CPU_SUPPORTS_32BIT_KERNEL
1378	select CPU_SUPPORTS_64BIT_KERNEL
1379	select CPU_SUPPORTS_HIGHMEM
1380	select CPU_SUPPORTS_HUGEPAGES
1381	help
1382	  Choose this option to build a kernel for release 1 or later of the
1383	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1384	  MIPS processor are based on a MIPS64 processor.  If you know the
1385	  specific type of processor in your system, choose those that one
1386	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1387	  Release 2 of the MIPS64 architecture is available since several
1388	  years so chances are you even have a MIPS64 Release 2 processor
1389	  in which case you should choose CPU_MIPS64_R2 instead for better
1390	  performance.
1391
1392config CPU_MIPS64_R2
1393	bool "MIPS64 Release 2"
1394	depends on SYS_HAS_CPU_MIPS64_R2
1395	select CPU_HAS_PREFETCH
1396	select CPU_SUPPORTS_32BIT_KERNEL
1397	select CPU_SUPPORTS_64BIT_KERNEL
1398	select CPU_SUPPORTS_HIGHMEM
1399	select CPU_SUPPORTS_HUGEPAGES
1400	select CPU_SUPPORTS_MSA
1401	help
1402	  Choose this option to build a kernel for release 2 or later of the
1403	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1404	  MIPS processor are based on a MIPS64 processor.  If you know the
1405	  specific type of processor in your system, choose those that one
1406	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1407
1408config CPU_MIPS64_R6
1409	bool "MIPS64 Release 6 (EXPERIMENTAL)"
1410	depends on SYS_HAS_CPU_MIPS64_R6
1411	select CPU_HAS_PREFETCH
1412	select CPU_SUPPORTS_32BIT_KERNEL
1413	select CPU_SUPPORTS_64BIT_KERNEL
1414	select CPU_SUPPORTS_HIGHMEM
1415	select CPU_SUPPORTS_MSA
1416	select GENERIC_CSUM
1417	help
1418	  Choose this option to build a kernel for release 6 or later of the
1419	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1420	  family, are based on a MIPS64r6 processor. If you own an older
1421	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1422
1423config CPU_R3000
1424	bool "R3000"
1425	depends on SYS_HAS_CPU_R3000
1426	select CPU_HAS_WB
1427	select CPU_SUPPORTS_32BIT_KERNEL
1428	select CPU_SUPPORTS_HIGHMEM
1429	help
1430	  Please make sure to pick the right CPU type. Linux/MIPS is not
1431	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1432	  *not* work on R4000 machines and vice versa.  However, since most
1433	  of the supported machines have an R4000 (or similar) CPU, R4x00
1434	  might be a safe bet.  If the resulting kernel does not work,
1435	  try to recompile with R3000.
1436
1437config CPU_TX39XX
1438	bool "R39XX"
1439	depends on SYS_HAS_CPU_TX39XX
1440	select CPU_SUPPORTS_32BIT_KERNEL
1441
1442config CPU_VR41XX
1443	bool "R41xx"
1444	depends on SYS_HAS_CPU_VR41XX
1445	select CPU_SUPPORTS_32BIT_KERNEL
1446	select CPU_SUPPORTS_64BIT_KERNEL
1447	help
1448	  The options selects support for the NEC VR4100 series of processors.
1449	  Only choose this option if you have one of these processors as a
1450	  kernel built with this option will not run on any other type of
1451	  processor or vice versa.
1452
1453config CPU_R4300
1454	bool "R4300"
1455	depends on SYS_HAS_CPU_R4300
1456	select CPU_SUPPORTS_32BIT_KERNEL
1457	select CPU_SUPPORTS_64BIT_KERNEL
1458	help
1459	  MIPS Technologies R4300-series processors.
1460
1461config CPU_R4X00
1462	bool "R4x00"
1463	depends on SYS_HAS_CPU_R4X00
1464	select CPU_SUPPORTS_32BIT_KERNEL
1465	select CPU_SUPPORTS_64BIT_KERNEL
1466	select CPU_SUPPORTS_HUGEPAGES
1467	help
1468	  MIPS Technologies R4000-series processors other than 4300, including
1469	  the R4000, R4400, R4600, and 4700.
1470
1471config CPU_TX49XX
1472	bool "R49XX"
1473	depends on SYS_HAS_CPU_TX49XX
1474	select CPU_HAS_PREFETCH
1475	select CPU_SUPPORTS_32BIT_KERNEL
1476	select CPU_SUPPORTS_64BIT_KERNEL
1477	select CPU_SUPPORTS_HUGEPAGES
1478
1479config CPU_R5000
1480	bool "R5000"
1481	depends on SYS_HAS_CPU_R5000
1482	select CPU_SUPPORTS_32BIT_KERNEL
1483	select CPU_SUPPORTS_64BIT_KERNEL
1484	select CPU_SUPPORTS_HUGEPAGES
1485	help
1486	  MIPS Technologies R5000-series processors other than the Nevada.
1487
1488config CPU_R5432
1489	bool "R5432"
1490	depends on SYS_HAS_CPU_R5432
1491	select CPU_SUPPORTS_32BIT_KERNEL
1492	select CPU_SUPPORTS_64BIT_KERNEL
1493	select CPU_SUPPORTS_HUGEPAGES
1494
1495config CPU_R5500
1496	bool "R5500"
1497	depends on SYS_HAS_CPU_R5500
1498	select CPU_SUPPORTS_32BIT_KERNEL
1499	select CPU_SUPPORTS_64BIT_KERNEL
1500	select CPU_SUPPORTS_HUGEPAGES
1501	help
1502	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1503	  instruction set.
1504
1505config CPU_R6000
1506	bool "R6000"
1507	depends on SYS_HAS_CPU_R6000
1508	select CPU_SUPPORTS_32BIT_KERNEL
1509	help
1510	  MIPS Technologies R6000 and R6000A series processors.  Note these
1511	  processors are extremely rare and the support for them is incomplete.
1512
1513config CPU_NEVADA
1514	bool "RM52xx"
1515	depends on SYS_HAS_CPU_NEVADA
1516	select CPU_SUPPORTS_32BIT_KERNEL
1517	select CPU_SUPPORTS_64BIT_KERNEL
1518	select CPU_SUPPORTS_HUGEPAGES
1519	help
1520	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1521
1522config CPU_R8000
1523	bool "R8000"
1524	depends on SYS_HAS_CPU_R8000
1525	select CPU_HAS_PREFETCH
1526	select CPU_SUPPORTS_64BIT_KERNEL
1527	help
1528	  MIPS Technologies R8000 processors.  Note these processors are
1529	  uncommon and the support for them is incomplete.
1530
1531config CPU_R10000
1532	bool "R10000"
1533	depends on SYS_HAS_CPU_R10000
1534	select CPU_HAS_PREFETCH
1535	select CPU_SUPPORTS_32BIT_KERNEL
1536	select CPU_SUPPORTS_64BIT_KERNEL
1537	select CPU_SUPPORTS_HIGHMEM
1538	select CPU_SUPPORTS_HUGEPAGES
1539	help
1540	  MIPS Technologies R10000-series processors.
1541
1542config CPU_RM7000
1543	bool "RM7000"
1544	depends on SYS_HAS_CPU_RM7000
1545	select CPU_HAS_PREFETCH
1546	select CPU_SUPPORTS_32BIT_KERNEL
1547	select CPU_SUPPORTS_64BIT_KERNEL
1548	select CPU_SUPPORTS_HIGHMEM
1549	select CPU_SUPPORTS_HUGEPAGES
1550
1551config CPU_SB1
1552	bool "SB1"
1553	depends on SYS_HAS_CPU_SB1
1554	select CPU_SUPPORTS_32BIT_KERNEL
1555	select CPU_SUPPORTS_64BIT_KERNEL
1556	select CPU_SUPPORTS_HIGHMEM
1557	select CPU_SUPPORTS_HUGEPAGES
1558	select WEAK_ORDERING
1559
1560config CPU_CAVIUM_OCTEON
1561	bool "Cavium Octeon processor"
1562	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1563	select CPU_HAS_PREFETCH
1564	select CPU_SUPPORTS_64BIT_KERNEL
1565	select WEAK_ORDERING
1566	select CPU_SUPPORTS_HIGHMEM
1567	select CPU_SUPPORTS_HUGEPAGES
1568	select USB_EHCI_BIG_ENDIAN_MMIO
1569	select MIPS_L1_CACHE_SHIFT_7
1570	help
1571	  The Cavium Octeon processor is a highly integrated chip containing
1572	  many ethernet hardware widgets for networking tasks. The processor
1573	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1574	  Full details can be found at http://www.caviumnetworks.com.
1575
1576config CPU_BMIPS
1577	bool "Broadcom BMIPS"
1578	depends on SYS_HAS_CPU_BMIPS
1579	select CPU_MIPS32
1580	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1581	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1582	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1583	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1584	select CPU_SUPPORTS_32BIT_KERNEL
1585	select DMA_NONCOHERENT
1586	select IRQ_CPU
1587	select SWAP_IO_SPACE
1588	select WEAK_ORDERING
1589	select CPU_SUPPORTS_HIGHMEM
1590	select CPU_HAS_PREFETCH
1591	help
1592	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1593
1594config CPU_XLR
1595	bool "Netlogic XLR SoC"
1596	depends on SYS_HAS_CPU_XLR
1597	select CPU_SUPPORTS_32BIT_KERNEL
1598	select CPU_SUPPORTS_64BIT_KERNEL
1599	select CPU_SUPPORTS_HIGHMEM
1600	select CPU_SUPPORTS_HUGEPAGES
1601	select WEAK_ORDERING
1602	select WEAK_REORDERING_BEYOND_LLSC
1603	help
1604	  Netlogic Microsystems XLR/XLS processors.
1605
1606config CPU_XLP
1607	bool "Netlogic XLP SoC"
1608	depends on SYS_HAS_CPU_XLP
1609	select CPU_SUPPORTS_32BIT_KERNEL
1610	select CPU_SUPPORTS_64BIT_KERNEL
1611	select CPU_SUPPORTS_HIGHMEM
1612	select WEAK_ORDERING
1613	select WEAK_REORDERING_BEYOND_LLSC
1614	select CPU_HAS_PREFETCH
1615	select CPU_MIPSR2
1616	select CPU_SUPPORTS_HUGEPAGES
1617	help
1618	  Netlogic Microsystems XLP processors.
1619endchoice
1620
1621config CPU_MIPS32_3_5_FEATURES
1622	bool "MIPS32 Release 3.5 Features"
1623	depends on SYS_HAS_CPU_MIPS32_R3_5
1624	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1625	help
1626	  Choose this option to build a kernel for release 2 or later of the
1627	  MIPS32 architecture including features from the 3.5 release such as
1628	  support for Enhanced Virtual Addressing (EVA).
1629
1630config CPU_MIPS32_3_5_EVA
1631	bool "Enhanced Virtual Addressing (EVA)"
1632	depends on CPU_MIPS32_3_5_FEATURES
1633	select EVA
1634	default y
1635	help
1636	  Choose this option if you want to enable the Enhanced Virtual
1637	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1638	  One of its primary benefits is an increase in the maximum size
1639	  of lowmem (up to 3GB). If unsure, say 'N' here.
1640
1641if CPU_LOONGSON2F
1642config CPU_NOP_WORKAROUNDS
1643	bool
1644
1645config CPU_JUMP_WORKAROUNDS
1646	bool
1647
1648config CPU_LOONGSON2F_WORKAROUNDS
1649	bool "Loongson 2F Workarounds"
1650	default y
1651	select CPU_NOP_WORKAROUNDS
1652	select CPU_JUMP_WORKAROUNDS
1653	help
1654	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1655	  require workarounds.  Without workarounds the system may hang
1656	  unexpectedly.  For more information please refer to the gas
1657	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1658
1659	  Loongson 2F03 and later have fixed these issues and no workarounds
1660	  are needed.  The workarounds have no significant side effect on them
1661	  but may decrease the performance of the system so this option should
1662	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1663	  systems.
1664
1665	  If unsure, please say Y.
1666endif # CPU_LOONGSON2F
1667
1668config SYS_SUPPORTS_ZBOOT
1669	bool
1670	select HAVE_KERNEL_GZIP
1671	select HAVE_KERNEL_BZIP2
1672	select HAVE_KERNEL_LZ4
1673	select HAVE_KERNEL_LZMA
1674	select HAVE_KERNEL_LZO
1675	select HAVE_KERNEL_XZ
1676
1677config SYS_SUPPORTS_ZBOOT_UART16550
1678	bool
1679	select SYS_SUPPORTS_ZBOOT
1680
1681config CPU_LOONGSON2
1682	bool
1683	select CPU_SUPPORTS_32BIT_KERNEL
1684	select CPU_SUPPORTS_64BIT_KERNEL
1685	select CPU_SUPPORTS_HIGHMEM
1686	select CPU_SUPPORTS_HUGEPAGES
1687
1688config CPU_LOONGSON1
1689	bool
1690	select CPU_MIPS32
1691	select CPU_MIPSR2
1692	select CPU_HAS_PREFETCH
1693	select CPU_SUPPORTS_32BIT_KERNEL
1694	select CPU_SUPPORTS_HIGHMEM
1695	select CPU_SUPPORTS_CPUFREQ
1696
1697config CPU_BMIPS32_3300
1698	select SMP_UP if SMP
1699	bool
1700
1701config CPU_BMIPS4350
1702	bool
1703	select SYS_SUPPORTS_SMP
1704	select SYS_SUPPORTS_HOTPLUG_CPU
1705
1706config CPU_BMIPS4380
1707	bool
1708	select MIPS_L1_CACHE_SHIFT_6
1709	select SYS_SUPPORTS_SMP
1710	select SYS_SUPPORTS_HOTPLUG_CPU
1711
1712config CPU_BMIPS5000
1713	bool
1714	select MIPS_CPU_SCACHE
1715	select MIPS_L1_CACHE_SHIFT_7
1716	select SYS_SUPPORTS_SMP
1717	select SYS_SUPPORTS_HOTPLUG_CPU
1718
1719config SYS_HAS_CPU_LOONGSON3
1720	bool
1721	select CPU_SUPPORTS_CPUFREQ
1722
1723config SYS_HAS_CPU_LOONGSON2E
1724	bool
1725
1726config SYS_HAS_CPU_LOONGSON2F
1727	bool
1728	select CPU_SUPPORTS_CPUFREQ
1729	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1730	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1731
1732config SYS_HAS_CPU_LOONGSON1B
1733	bool
1734
1735config SYS_HAS_CPU_MIPS32_R1
1736	bool
1737
1738config SYS_HAS_CPU_MIPS32_R2
1739	bool
1740
1741config SYS_HAS_CPU_MIPS32_R3_5
1742	bool
1743
1744config SYS_HAS_CPU_MIPS32_R6
1745	bool
1746
1747config SYS_HAS_CPU_MIPS64_R1
1748	bool
1749
1750config SYS_HAS_CPU_MIPS64_R2
1751	bool
1752
1753config SYS_HAS_CPU_MIPS64_R6
1754	bool
1755
1756config SYS_HAS_CPU_R3000
1757	bool
1758
1759config SYS_HAS_CPU_TX39XX
1760	bool
1761
1762config SYS_HAS_CPU_VR41XX
1763	bool
1764
1765config SYS_HAS_CPU_R4300
1766	bool
1767
1768config SYS_HAS_CPU_R4X00
1769	bool
1770
1771config SYS_HAS_CPU_TX49XX
1772	bool
1773
1774config SYS_HAS_CPU_R5000
1775	bool
1776
1777config SYS_HAS_CPU_R5432
1778	bool
1779
1780config SYS_HAS_CPU_R5500
1781	bool
1782
1783config SYS_HAS_CPU_R6000
1784	bool
1785
1786config SYS_HAS_CPU_NEVADA
1787	bool
1788
1789config SYS_HAS_CPU_R8000
1790	bool
1791
1792config SYS_HAS_CPU_R10000
1793	bool
1794
1795config SYS_HAS_CPU_RM7000
1796	bool
1797
1798config SYS_HAS_CPU_SB1
1799	bool
1800
1801config SYS_HAS_CPU_CAVIUM_OCTEON
1802	bool
1803
1804config SYS_HAS_CPU_BMIPS
1805	bool
1806
1807config SYS_HAS_CPU_BMIPS32_3300
1808	bool
1809	select SYS_HAS_CPU_BMIPS
1810
1811config SYS_HAS_CPU_BMIPS4350
1812	bool
1813	select SYS_HAS_CPU_BMIPS
1814
1815config SYS_HAS_CPU_BMIPS4380
1816	bool
1817	select SYS_HAS_CPU_BMIPS
1818
1819config SYS_HAS_CPU_BMIPS5000
1820	bool
1821	select SYS_HAS_CPU_BMIPS
1822
1823config SYS_HAS_CPU_XLR
1824	bool
1825
1826config SYS_HAS_CPU_XLP
1827	bool
1828
1829config MIPS_MALTA_PM
1830	depends on MIPS_MALTA
1831	depends on PCI
1832	bool
1833	default y
1834
1835#
1836# CPU may reorder R->R, R->W, W->R, W->W
1837# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1838#
1839config WEAK_ORDERING
1840	bool
1841
1842#
1843# CPU may reorder reads and writes beyond LL/SC
1844# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1845#
1846config WEAK_REORDERING_BEYOND_LLSC
1847	bool
1848endmenu
1849
1850#
1851# These two indicate any level of the MIPS32 and MIPS64 architecture
1852#
1853config CPU_MIPS32
1854	bool
1855	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1856
1857config CPU_MIPS64
1858	bool
1859	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1860
1861#
1862# These two indicate the revision of the architecture, either Release 1 or Release 2
1863#
1864config CPU_MIPSR1
1865	bool
1866	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1867
1868config CPU_MIPSR2
1869	bool
1870	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1871	select MIPS_SPRAM
1872
1873config CPU_MIPSR6
1874	bool
1875	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1876	select MIPS_SPRAM
1877
1878config EVA
1879	bool
1880
1881config SYS_SUPPORTS_32BIT_KERNEL
1882	bool
1883config SYS_SUPPORTS_64BIT_KERNEL
1884	bool
1885config CPU_SUPPORTS_32BIT_KERNEL
1886	bool
1887config CPU_SUPPORTS_64BIT_KERNEL
1888	bool
1889config CPU_SUPPORTS_CPUFREQ
1890	bool
1891config CPU_SUPPORTS_ADDRWINCFG
1892	bool
1893config CPU_SUPPORTS_HUGEPAGES
1894	bool
1895config CPU_SUPPORTS_UNCACHED_ACCELERATED
1896	bool
1897config MIPS_PGD_C0_CONTEXT
1898	bool
1899	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1900
1901#
1902# Set to y for ptrace access to watch registers.
1903#
1904config HARDWARE_WATCHPOINTS
1905       bool
1906       default y if CPU_MIPSR1 || CPU_MIPSR2
1907
1908menu "Kernel type"
1909
1910choice
1911	prompt "Kernel code model"
1912	help
1913	  You should only select this option if you have a workload that
1914	  actually benefits from 64-bit processing or if your machine has
1915	  large memory.  You will only be presented a single option in this
1916	  menu if your system does not support both 32-bit and 64-bit kernels.
1917
1918config 32BIT
1919	bool "32-bit kernel"
1920	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1921	select TRAD_SIGNALS
1922	help
1923	  Select this option if you want to build a 32-bit kernel.
1924config 64BIT
1925	bool "64-bit kernel"
1926	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1927	help
1928	  Select this option if you want to build a 64-bit kernel.
1929
1930endchoice
1931
1932config KVM_GUEST
1933	bool "KVM Guest Kernel"
1934	depends on BROKEN_ON_SMP
1935	help
1936	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1937
1938config KVM_GUEST_TIMER_FREQ
1939	int "Count/Compare Timer Frequency (MHz)"
1940	depends on KVM_GUEST
1941	default 100
1942	help
1943	  Set this to non-zero if building a guest kernel for KVM to skip RTC
1944	  emulation when determining guest CPU Frequency. Instead, the guest's
1945	  timer frequency is specified directly.
1946
1947choice
1948	prompt "Kernel page size"
1949	default PAGE_SIZE_4KB
1950
1951config PAGE_SIZE_4KB
1952	bool "4kB"
1953	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1954	help
1955	 This option select the standard 4kB Linux page size.  On some
1956	 R3000-family processors this is the only available page size.  Using
1957	 4kB page size will minimize memory consumption and is therefore
1958	 recommended for low memory systems.
1959
1960config PAGE_SIZE_8KB
1961	bool "8kB"
1962	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1963	help
1964	  Using 8kB page size will result in higher performance kernel at
1965	  the price of higher memory consumption.  This option is available
1966	  only on R8000 and cnMIPS processors.  Note that you will need a
1967	  suitable Linux distribution to support this.
1968
1969config PAGE_SIZE_16KB
1970	bool "16kB"
1971	depends on !CPU_R3000 && !CPU_TX39XX
1972	help
1973	  Using 16kB page size will result in higher performance kernel at
1974	  the price of higher memory consumption.  This option is available on
1975	  all non-R3000 family processors.  Note that you will need a suitable
1976	  Linux distribution to support this.
1977
1978config PAGE_SIZE_32KB
1979	bool "32kB"
1980	depends on CPU_CAVIUM_OCTEON
1981	help
1982	  Using 32kB page size will result in higher performance kernel at
1983	  the price of higher memory consumption.  This option is available
1984	  only on cnMIPS cores.  Note that you will need a suitable Linux
1985	  distribution to support this.
1986
1987config PAGE_SIZE_64KB
1988	bool "64kB"
1989	depends on !CPU_R3000 && !CPU_TX39XX
1990	help
1991	  Using 64kB page size will result in higher performance kernel at
1992	  the price of higher memory consumption.  This option is available on
1993	  all non-R3000 family processor.  Not that at the time of this
1994	  writing this option is still high experimental.
1995
1996endchoice
1997
1998config FORCE_MAX_ZONEORDER
1999	int "Maximum zone order"
2000	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2001	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2002	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2003	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2004	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2005	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2006	range 11 64
2007	default "11"
2008	help
2009	  The kernel memory allocator divides physically contiguous memory
2010	  blocks into "zones", where each zone is a power of two number of
2011	  pages.  This option selects the largest power of two that the kernel
2012	  keeps in the memory allocator.  If you need to allocate very large
2013	  blocks of physically contiguous memory, then you may need to
2014	  increase this value.
2015
2016	  This config option is actually maximum order plus one. For example,
2017	  a value of 11 means that the largest free memory block is 2^10 pages.
2018
2019	  The page size is not necessarily 4KB.  Keep this in mind
2020	  when choosing a value for this option.
2021
2022config BOARD_SCACHE
2023	bool
2024
2025config IP22_CPU_SCACHE
2026	bool
2027	select BOARD_SCACHE
2028
2029#
2030# Support for a MIPS32 / MIPS64 style S-caches
2031#
2032config MIPS_CPU_SCACHE
2033	bool
2034	select BOARD_SCACHE
2035
2036config R5000_CPU_SCACHE
2037	bool
2038	select BOARD_SCACHE
2039
2040config RM7000_CPU_SCACHE
2041	bool
2042	select BOARD_SCACHE
2043
2044config SIBYTE_DMA_PAGEOPS
2045	bool "Use DMA to clear/copy pages"
2046	depends on CPU_SB1
2047	help
2048	  Instead of using the CPU to zero and copy pages, use a Data Mover
2049	  channel.  These DMA channels are otherwise unused by the standard
2050	  SiByte Linux port.  Seems to give a small performance benefit.
2051
2052config CPU_HAS_PREFETCH
2053	bool
2054
2055config CPU_GENERIC_DUMP_TLB
2056	bool
2057	default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2058
2059config CPU_R4K_FPU
2060	bool
2061	default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2062
2063config CPU_R4K_CACHE_TLB
2064	bool
2065	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2066
2067config MIPS_MT_SMP
2068	bool "MIPS MT SMP support (1 TC on each available VPE)"
2069	depends on SYS_SUPPORTS_MULTITHREADING
2070	select CPU_MIPSR2_IRQ_VI
2071	select CPU_MIPSR2_IRQ_EI
2072	select SYNC_R4K
2073	select MIPS_GIC_IPI
2074	select MIPS_MT
2075	select SMP
2076	select SMP_UP
2077	select SYS_SUPPORTS_SMP
2078	select SYS_SUPPORTS_SCHED_SMT
2079	select MIPS_PERF_SHARED_TC_COUNTERS
2080	help
2081	  This is a kernel model which is known as SMVP. This is supported
2082	  on cores with the MT ASE and uses the available VPEs to implement
2083	  virtual processors which supports SMP. This is equivalent to the
2084	  Intel Hyperthreading feature. For further information go to
2085	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2086
2087config MIPS_MT
2088	bool
2089
2090config SCHED_SMT
2091	bool "SMT (multithreading) scheduler support"
2092	depends on SYS_SUPPORTS_SCHED_SMT
2093	default n
2094	help
2095	  SMT scheduler support improves the CPU scheduler's decision making
2096	  when dealing with MIPS MT enabled cores at a cost of slightly
2097	  increased overhead in some places. If unsure say N here.
2098
2099config SYS_SUPPORTS_SCHED_SMT
2100	bool
2101
2102config SYS_SUPPORTS_MULTITHREADING
2103	bool
2104
2105config MIPS_MT_FPAFF
2106	bool "Dynamic FPU affinity for FP-intensive threads"
2107	default y
2108	depends on MIPS_MT_SMP
2109
2110config MIPSR2_TO_R6_EMULATOR
2111	bool "MIPS R2-to-R6 emulator"
2112	depends on CPU_MIPSR6 && !SMP
2113	default y
2114	help
2115	  Choose this option if you want to run non-R6 MIPS userland code.
2116	  Even if you say 'Y' here, the emulator will still be disabled by
2117	  default. You can enable it using the 'mipsr2emul' kernel option.
2118	  The only reason this is a build-time option is to save ~14K from the
2119	  final kernel image.
2120comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2121	depends on SMP && CPU_MIPSR6
2122
2123config MIPS_VPE_LOADER
2124	bool "VPE loader support."
2125	depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2126	select CPU_MIPSR2_IRQ_VI
2127	select CPU_MIPSR2_IRQ_EI
2128	select MIPS_MT
2129	help
2130	  Includes a loader for loading an elf relocatable object
2131	  onto another VPE and running it.
2132
2133config MIPS_VPE_LOADER_CMP
2134	bool
2135	default "y"
2136	depends on MIPS_VPE_LOADER && MIPS_CMP
2137
2138config MIPS_VPE_LOADER_MT
2139	bool
2140	default "y"
2141	depends on MIPS_VPE_LOADER && !MIPS_CMP
2142
2143config MIPS_VPE_LOADER_TOM
2144	bool "Load VPE program into memory hidden from linux"
2145	depends on MIPS_VPE_LOADER
2146	default y
2147	help
2148	  The loader can use memory that is present but has been hidden from
2149	  Linux using the kernel command line option "mem=xxMB". It's up to
2150	  you to ensure the amount you put in the option and the space your
2151	  program requires is less or equal to the amount physically present.
2152
2153config MIPS_VPE_APSP_API
2154	bool "Enable support for AP/SP API (RTLX)"
2155	depends on MIPS_VPE_LOADER
2156	help
2157
2158config MIPS_VPE_APSP_API_CMP
2159	bool
2160	default "y"
2161	depends on MIPS_VPE_APSP_API && MIPS_CMP
2162
2163config MIPS_VPE_APSP_API_MT
2164	bool
2165	default "y"
2166	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2167
2168config MIPS_CMP
2169	bool "MIPS CMP framework support (DEPRECATED)"
2170	depends on SYS_SUPPORTS_MIPS_CMP
2171	select MIPS_GIC_IPI
2172	select SMP
2173	select SYNC_R4K
2174	select SYS_SUPPORTS_SMP
2175	select WEAK_ORDERING
2176	default n
2177	help
2178	  Select this if you are using a bootloader which implements the "CMP
2179	  framework" protocol (ie. YAMON) and want your kernel to make use of
2180	  its ability to start secondary CPUs.
2181
2182	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2183	  instead of this.
2184
2185config MIPS_CPS
2186	bool "MIPS Coherent Processing System support"
2187	depends on SYS_SUPPORTS_MIPS_CPS
2188	select MIPS_CM
2189	select MIPS_CPC
2190	select MIPS_CPS_PM if HOTPLUG_CPU
2191	select MIPS_GIC_IPI
2192	select SMP
2193	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2194	select SYS_SUPPORTS_HOTPLUG_CPU
2195	select SYS_SUPPORTS_SMP
2196	select WEAK_ORDERING
2197	help
2198	  Select this if you wish to run an SMP kernel across multiple cores
2199	  within a MIPS Coherent Processing System. When this option is
2200	  enabled the kernel will probe for other cores and boot them with
2201	  no external assistance. It is safe to enable this when hardware
2202	  support is unavailable.
2203
2204config MIPS_CPS_PM
2205	depends on MIPS_CPS
2206	select MIPS_CPC
2207	bool
2208
2209config MIPS_GIC_IPI
2210	bool
2211
2212config MIPS_CM
2213	bool
2214
2215config MIPS_CPC
2216	bool
2217
2218config SB1_PASS_1_WORKAROUNDS
2219	bool
2220	depends on CPU_SB1_PASS_1
2221	default y
2222
2223config SB1_PASS_2_WORKAROUNDS
2224	bool
2225	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2226	default y
2227
2228config SB1_PASS_2_1_WORKAROUNDS
2229	bool
2230	depends on CPU_SB1 && CPU_SB1_PASS_2
2231	default y
2232
2233
2234config ARCH_PHYS_ADDR_T_64BIT
2235       bool
2236
2237choice
2238	prompt "SmartMIPS or microMIPS ASE support"
2239
2240config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2241	bool "None"
2242	help
2243	  Select this if you want neither microMIPS nor SmartMIPS support
2244
2245config CPU_HAS_SMARTMIPS
2246	depends on SYS_SUPPORTS_SMARTMIPS
2247	bool "SmartMIPS"
2248	help
2249	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2250	  increased security at both hardware and software level for
2251	  smartcards.  Enabling this option will allow proper use of the
2252	  SmartMIPS instructions by Linux applications.  However a kernel with
2253	  this option will not work on a MIPS core without SmartMIPS core.  If
2254	  you don't know you probably don't have SmartMIPS and should say N
2255	  here.
2256
2257config CPU_MICROMIPS
2258	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2259	bool "microMIPS"
2260	help
2261	  When this option is enabled the kernel will be built using the
2262	  microMIPS ISA
2263
2264endchoice
2265
2266config CPU_HAS_MSA
2267	bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2268	depends on CPU_SUPPORTS_MSA
2269	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2270	help
2271	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2272	  and a set of SIMD instructions to operate on them. When this option
2273	  is enabled the kernel will support allocating & switching MSA
2274	  vector register contexts. If you know that your kernel will only be
2275	  running on CPUs which do not support MSA or that your userland will
2276	  not be making use of it then you may wish to say N here to reduce
2277	  the size & complexity of your kernel.
2278
2279	  If unsure, say Y.
2280
2281config CPU_HAS_WB
2282	bool
2283
2284config XKS01
2285	bool
2286
2287#
2288# Vectored interrupt mode is an R2 feature
2289#
2290config CPU_MIPSR2_IRQ_VI
2291	bool
2292
2293#
2294# Extended interrupt mode is an R2 feature
2295#
2296config CPU_MIPSR2_IRQ_EI
2297	bool
2298
2299config CPU_HAS_SYNC
2300	bool
2301	depends on !CPU_R3000
2302	default y
2303
2304#
2305# CPU non-features
2306#
2307config CPU_DADDI_WORKAROUNDS
2308	bool
2309
2310config CPU_R4000_WORKAROUNDS
2311	bool
2312	select CPU_R4400_WORKAROUNDS
2313
2314config CPU_R4400_WORKAROUNDS
2315	bool
2316
2317#
2318# - Highmem only makes sense for the 32-bit kernel.
2319# - The current highmem code will only work properly on physically indexed
2320#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2321#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2322#   moment we protect the user and offer the highmem option only on machines
2323#   where it's known to be safe.  This will not offer highmem on a few systems
2324#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2325#   indexed CPUs but we're playing safe.
2326# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2327#   know they might have memory configurations that could make use of highmem
2328#   support.
2329#
2330config HIGHMEM
2331	bool "High Memory Support"
2332	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2333
2334config CPU_SUPPORTS_HIGHMEM
2335	bool
2336
2337config SYS_SUPPORTS_HIGHMEM
2338	bool
2339
2340config SYS_SUPPORTS_SMARTMIPS
2341	bool
2342
2343config SYS_SUPPORTS_MICROMIPS
2344	bool
2345
2346config SYS_SUPPORTS_MIPS16
2347	bool
2348	help
2349	  This option must be set if a kernel might be executed on a MIPS16-
2350	  enabled CPU even if MIPS16 is not actually being used.  In other
2351	  words, it makes the kernel MIPS16-tolerant.
2352
2353config CPU_SUPPORTS_MSA
2354	bool
2355
2356config ARCH_FLATMEM_ENABLE
2357	def_bool y
2358	depends on !NUMA && !CPU_LOONGSON2
2359
2360config ARCH_DISCONTIGMEM_ENABLE
2361	bool
2362	default y if SGI_IP27
2363	help
2364	  Say Y to support efficient handling of discontiguous physical memory,
2365	  for architectures which are either NUMA (Non-Uniform Memory Access)
2366	  or have huge holes in the physical address space for other reasons.
2367	  See <file:Documentation/vm/numa> for more.
2368
2369config ARCH_SPARSEMEM_ENABLE
2370	bool
2371	select SPARSEMEM_STATIC
2372
2373config NUMA
2374	bool "NUMA Support"
2375	depends on SYS_SUPPORTS_NUMA
2376	help
2377	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2378	  Access).  This option improves performance on systems with more
2379	  than two nodes; on two node systems it is generally better to
2380	  leave it disabled; on single node systems disable this option
2381	  disabled.
2382
2383config SYS_SUPPORTS_NUMA
2384	bool
2385
2386config NODES_SHIFT
2387	int
2388	default "6"
2389	depends on NEED_MULTIPLE_NODES
2390
2391config HW_PERF_EVENTS
2392	bool "Enable hardware performance counter support for perf events"
2393	depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2394	default y
2395	help
2396	  Enable hardware performance counter support for perf events. If
2397	  disabled, perf events will use software events only.
2398
2399source "mm/Kconfig"
2400
2401config SMP
2402	bool "Multi-Processing support"
2403	depends on SYS_SUPPORTS_SMP
2404	help
2405	  This enables support for systems with more than one CPU. If you have
2406	  a system with only one CPU, say N. If you have a system with more
2407	  than one CPU, say Y.
2408
2409	  If you say N here, the kernel will run on uni- and multiprocessor
2410	  machines, but will use only one CPU of a multiprocessor machine. If
2411	  you say Y here, the kernel will run on many, but not all,
2412	  uniprocessor machines. On a uniprocessor machine, the kernel
2413	  will run faster if you say N here.
2414
2415	  People using multiprocessor machines who say Y here should also say
2416	  Y to "Enhanced Real Time Clock Support", below.
2417
2418	  See also the SMP-HOWTO available at
2419	  <http://www.tldp.org/docs.html#howto>.
2420
2421	  If you don't know what to do here, say N.
2422
2423config SMP_UP
2424	bool
2425
2426config SYS_SUPPORTS_MIPS_CMP
2427	bool
2428
2429config SYS_SUPPORTS_MIPS_CPS
2430	bool
2431
2432config SYS_SUPPORTS_SMP
2433	bool
2434
2435config NR_CPUS_DEFAULT_4
2436	bool
2437
2438config NR_CPUS_DEFAULT_8
2439	bool
2440
2441config NR_CPUS_DEFAULT_16
2442	bool
2443
2444config NR_CPUS_DEFAULT_32
2445	bool
2446
2447config NR_CPUS_DEFAULT_64
2448	bool
2449
2450config NR_CPUS
2451	int "Maximum number of CPUs (2-256)"
2452	range 2 256
2453	depends on SMP
2454	default "4" if NR_CPUS_DEFAULT_4
2455	default "8" if NR_CPUS_DEFAULT_8
2456	default "16" if NR_CPUS_DEFAULT_16
2457	default "32" if NR_CPUS_DEFAULT_32
2458	default "64" if NR_CPUS_DEFAULT_64
2459	help
2460	  This allows you to specify the maximum number of CPUs which this
2461	  kernel will support.  The maximum supported value is 32 for 32-bit
2462	  kernel and 64 for 64-bit kernels; the minimum value which makes
2463	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2464	  and 2 for all others.
2465
2466	  This is purely to save memory - each supported CPU adds
2467	  approximately eight kilobytes to the kernel image.  For best
2468	  performance should round up your number of processors to the next
2469	  power of two.
2470
2471config MIPS_PERF_SHARED_TC_COUNTERS
2472	bool
2473
2474#
2475# Timer Interrupt Frequency Configuration
2476#
2477
2478choice
2479	prompt "Timer frequency"
2480	default HZ_250
2481	help
2482	 Allows the configuration of the timer frequency.
2483
2484	config HZ_48
2485		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2486
2487	config HZ_100
2488		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2489
2490	config HZ_128
2491		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2492
2493	config HZ_250
2494		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2495
2496	config HZ_256
2497		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2498
2499	config HZ_1000
2500		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2501
2502	config HZ_1024
2503		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2504
2505endchoice
2506
2507config SYS_SUPPORTS_48HZ
2508	bool
2509
2510config SYS_SUPPORTS_100HZ
2511	bool
2512
2513config SYS_SUPPORTS_128HZ
2514	bool
2515
2516config SYS_SUPPORTS_250HZ
2517	bool
2518
2519config SYS_SUPPORTS_256HZ
2520	bool
2521
2522config SYS_SUPPORTS_1000HZ
2523	bool
2524
2525config SYS_SUPPORTS_1024HZ
2526	bool
2527
2528config SYS_SUPPORTS_ARBIT_HZ
2529	bool
2530	default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2531		     !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2532		     !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2533		     !SYS_SUPPORTS_1024HZ
2534
2535config HZ
2536	int
2537	default 48 if HZ_48
2538	default 100 if HZ_100
2539	default 128 if HZ_128
2540	default 250 if HZ_250
2541	default 256 if HZ_256
2542	default 1000 if HZ_1000
2543	default 1024 if HZ_1024
2544
2545config SCHED_HRTICK
2546	def_bool HIGH_RES_TIMERS
2547
2548source "kernel/Kconfig.preempt"
2549
2550config KEXEC
2551	bool "Kexec system call"
2552	help
2553	  kexec is a system call that implements the ability to shutdown your
2554	  current kernel, and to start another kernel.  It is like a reboot
2555	  but it is independent of the system firmware.   And like a reboot
2556	  you can start any kernel with it, not just Linux.
2557
2558	  The name comes from the similarity to the exec system call.
2559
2560	  It is an ongoing process to be certain the hardware in a machine
2561	  is properly shutdown, so do not be surprised if this code does not
2562	  initially work for you.  As of this writing the exact hardware
2563	  interface is strongly in flux, so no good recommendation can be
2564	  made.
2565
2566config CRASH_DUMP
2567	  bool "Kernel crash dumps"
2568	  help
2569	  Generate crash dump after being started by kexec.
2570	  This should be normally only set in special crash dump kernels
2571	  which are loaded in the main kernel with kexec-tools into
2572	  a specially reserved region and then later executed after
2573	  a crash by kdump/kexec. The crash dump kernel must be compiled
2574	  to a memory address not used by the main kernel or firmware using
2575	  PHYSICAL_START.
2576
2577config PHYSICAL_START
2578	  hex "Physical address where the kernel is loaded"
2579	  default "0xffffffff84000000" if 64BIT
2580	  default "0x84000000" if 32BIT
2581	  depends on CRASH_DUMP
2582	  help
2583	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2584	  If you plan to use kernel for capturing the crash dump change
2585	  this value to start of the reserved region (the "X" value as
2586	  specified in the "crashkernel=YM@XM" command line boot parameter
2587	  passed to the panic-ed kernel).
2588
2589config SECCOMP
2590	bool "Enable seccomp to safely compute untrusted bytecode"
2591	depends on PROC_FS
2592	default y
2593	help
2594	  This kernel feature is useful for number crunching applications
2595	  that may need to compute untrusted bytecode during their
2596	  execution. By using pipes or other transports made available to
2597	  the process as file descriptors supporting the read/write
2598	  syscalls, it's possible to isolate those applications in
2599	  their own address space using seccomp. Once seccomp is
2600	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2601	  and the task is only allowed to execute a few safe syscalls
2602	  defined by each seccomp mode.
2603
2604	  If unsure, say Y. Only embedded should say N here.
2605
2606config MIPS_O32_FP64_SUPPORT
2607	bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2608	depends on 32BIT || MIPS32_O32
2609	help
2610	  When this is enabled, the kernel will support use of 64-bit floating
2611	  point registers with binaries using the O32 ABI along with the
2612	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2613	  32-bit MIPS systems this support is at the cost of increasing the
2614	  size and complexity of the compiled FPU emulator. Thus if you are
2615	  running a MIPS32 system and know that none of your userland binaries
2616	  will require 64-bit floating point, you may wish to reduce the size
2617	  of your kernel & potentially improve FP emulation performance by
2618	  saying N here.
2619
2620	  Although binutils currently supports use of this flag the details
2621	  concerning its effect upon the O32 ABI in userland are still being
2622	  worked on. In order to avoid userland becoming dependant upon current
2623	  behaviour before the details have been finalised, this option should
2624	  be considered experimental and only enabled by those working upon
2625	  said details.
2626
2627	  If unsure, say N.
2628
2629config USE_OF
2630	bool
2631	select OF
2632	select OF_EARLY_FLATTREE
2633	select IRQ_DOMAIN
2634
2635config BUILTIN_DTB
2636	bool
2637
2638endmenu
2639
2640config LOCKDEP_SUPPORT
2641	bool
2642	default y
2643
2644config STACKTRACE_SUPPORT
2645	bool
2646	default y
2647
2648source "init/Kconfig"
2649
2650source "kernel/Kconfig.freezer"
2651
2652menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2653
2654config HW_HAS_EISA
2655	bool
2656config HW_HAS_PCI
2657	bool
2658
2659config PCI
2660	bool "Support for PCI controller"
2661	depends on HW_HAS_PCI
2662	select PCI_DOMAINS
2663	select NO_GENERIC_PCI_IOPORT_MAP
2664	help
2665	  Find out whether you have a PCI motherboard. PCI is the name of a
2666	  bus system, i.e. the way the CPU talks to the other stuff inside
2667	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2668	  say Y, otherwise N.
2669
2670config HT_PCI
2671	bool "Support for HT-linked PCI"
2672	default y
2673	depends on CPU_LOONGSON3
2674	select PCI
2675	select PCI_DOMAINS
2676	help
2677	  Loongson family machines use Hyper-Transport bus for inter-core
2678	  connection and device connection. The PCI bus is a subordinate
2679	  linked at HT. Choose Y for Loongson-3 based machines.
2680
2681config PCI_DOMAINS
2682	bool
2683
2684source "drivers/pci/Kconfig"
2685
2686source "drivers/pci/pcie/Kconfig"
2687
2688#
2689# ISA support is now enabled via select.  Too many systems still have the one
2690# or other ISA chip on the board that users don't know about so don't expect
2691# users to choose the right thing ...
2692#
2693config ISA
2694	bool
2695
2696config EISA
2697	bool "EISA support"
2698	depends on HW_HAS_EISA
2699	select ISA
2700	select GENERIC_ISA_DMA
2701	---help---
2702	  The Extended Industry Standard Architecture (EISA) bus was
2703	  developed as an open alternative to the IBM MicroChannel bus.
2704
2705	  The EISA bus provided some of the features of the IBM MicroChannel
2706	  bus while maintaining backward compatibility with cards made for
2707	  the older ISA bus.  The EISA bus saw limited use between 1988 and
2708	  1995 when it was made obsolete by the PCI bus.
2709
2710	  Say Y here if you are building a kernel for an EISA-based machine.
2711
2712	  Otherwise, say N.
2713
2714source "drivers/eisa/Kconfig"
2715
2716config TC
2717	bool "TURBOchannel support"
2718	depends on MACH_DECSTATION
2719	help
2720	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2721	  processors.  TURBOchannel programming specifications are available
2722	  at:
2723	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2724	  and:
2725	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2726	  Linux driver support status is documented at:
2727	  <http://www.linux-mips.org/wiki/DECstation>
2728
2729config MMU
2730	bool
2731	default y
2732
2733config I8253
2734	bool
2735	select CLKSRC_I8253
2736	select CLKEVT_I8253
2737	select MIPS_EXTERNAL_TIMER
2738
2739config ZONE_DMA
2740	bool
2741
2742config ZONE_DMA32
2743	bool
2744
2745source "drivers/pcmcia/Kconfig"
2746
2747source "drivers/pci/hotplug/Kconfig"
2748
2749config RAPIDIO
2750	tristate "RapidIO support"
2751	depends on PCI
2752	default n
2753	help
2754	  If you say Y here, the kernel will include drivers and
2755	  infrastructure code to support RapidIO interconnect devices.
2756
2757source "drivers/rapidio/Kconfig"
2758
2759endmenu
2760
2761menu "Executable file formats"
2762
2763source "fs/Kconfig.binfmt"
2764
2765config TRAD_SIGNALS
2766	bool
2767
2768config MIPS32_COMPAT
2769	bool
2770
2771config COMPAT
2772	bool
2773
2774config SYSVIPC_COMPAT
2775	bool
2776
2777config MIPS32_O32
2778	bool "Kernel support for o32 binaries"
2779	depends on 64BIT
2780	select ARCH_WANT_OLD_COMPAT_IPC
2781	select COMPAT
2782	select MIPS32_COMPAT
2783	select SYSVIPC_COMPAT if SYSVIPC
2784	help
2785	  Select this option if you want to run o32 binaries.  These are pure
2786	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2787	  existing binaries are in this format.
2788
2789	  If unsure, say Y.
2790
2791config MIPS32_N32
2792	bool "Kernel support for n32 binaries"
2793	depends on 64BIT
2794	select COMPAT
2795	select MIPS32_COMPAT
2796	select SYSVIPC_COMPAT if SYSVIPC
2797	help
2798	  Select this option if you want to run n32 binaries.  These are
2799	  64-bit binaries using 32-bit quantities for addressing and certain
2800	  data that would normally be 64-bit.  They are used in special
2801	  cases.
2802
2803	  If unsure, say N.
2804
2805config BINFMT_ELF32
2806	bool
2807	default y if MIPS32_O32 || MIPS32_N32
2808
2809endmenu
2810
2811menu "Power management options"
2812
2813config ARCH_HIBERNATION_POSSIBLE
2814	def_bool y
2815	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2816
2817config ARCH_SUSPEND_POSSIBLE
2818	def_bool y
2819	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2820
2821source "kernel/power/Kconfig"
2822
2823endmenu
2824
2825config MIPS_EXTERNAL_TIMER
2826	bool
2827
2828menu "CPU Power Management"
2829
2830if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2831source "drivers/cpufreq/Kconfig"
2832endif
2833
2834source "drivers/cpuidle/Kconfig"
2835
2836endmenu
2837
2838source "net/Kconfig"
2839
2840source "drivers/Kconfig"
2841
2842source "drivers/firmware/Kconfig"
2843
2844source "fs/Kconfig"
2845
2846source "arch/mips/Kconfig.debug"
2847
2848source "security/Kconfig"
2849
2850source "crypto/Kconfig"
2851
2852source "lib/Kconfig"
2853
2854source "arch/mips/kvm/Kconfig"
2855