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_HAS_ELF_RANDOMIZE
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_R5
419	select SYS_HAS_CPU_MIPS32_R6
420	select SYS_HAS_CPU_MIPS64_R1
421	select SYS_HAS_CPU_MIPS64_R2
422	select SYS_HAS_CPU_MIPS64_R6
423	select SYS_HAS_CPU_NEVADA
424	select SYS_HAS_CPU_RM7000
425	select SYS_SUPPORTS_32BIT_KERNEL
426	select SYS_SUPPORTS_64BIT_KERNEL
427	select SYS_SUPPORTS_BIG_ENDIAN
428	select SYS_SUPPORTS_HIGHMEM
429	select SYS_SUPPORTS_LITTLE_ENDIAN
430	select SYS_SUPPORTS_MICROMIPS
431	select SYS_SUPPORTS_MIPS_CMP
432	select SYS_SUPPORTS_MIPS_CPS
433	select SYS_SUPPORTS_MIPS16
434	select SYS_SUPPORTS_MULTITHREADING
435	select SYS_SUPPORTS_SMARTMIPS
436	select SYS_SUPPORTS_ZBOOT
437	help
438	  This enables support for the MIPS Technologies Malta evaluation
439	  board.
440
441config MIPS_SEAD3
442	bool "MIPS SEAD3 board"
443	select BOOT_ELF32
444	select BOOT_RAW
445	select BUILTIN_DTB
446	select CEVT_R4K
447	select CSRC_R4K
448	select CLKSRC_MIPS_GIC
449	select CPU_MIPSR2_IRQ_VI
450	select CPU_MIPSR2_IRQ_EI
451	select DMA_NONCOHERENT
452	select IRQ_CPU
453	select MIPS_GIC
454	select LIBFDT
455	select MIPS_MSC
456	select SYS_HAS_CPU_MIPS32_R1
457	select SYS_HAS_CPU_MIPS32_R2
458	select SYS_HAS_CPU_MIPS64_R1
459	select SYS_HAS_EARLY_PRINTK
460	select SYS_SUPPORTS_32BIT_KERNEL
461	select SYS_SUPPORTS_64BIT_KERNEL
462	select SYS_SUPPORTS_BIG_ENDIAN
463	select SYS_SUPPORTS_LITTLE_ENDIAN
464	select SYS_SUPPORTS_SMARTMIPS
465	select SYS_SUPPORTS_MICROMIPS
466	select SYS_SUPPORTS_MIPS16
467	select USB_EHCI_BIG_ENDIAN_DESC
468	select USB_EHCI_BIG_ENDIAN_MMIO
469	select USE_OF
470	help
471	  This enables support for the MIPS Technologies SEAD3 evaluation
472	  board.
473
474config NEC_MARKEINS
475	bool "NEC EMMA2RH Mark-eins board"
476	select SOC_EMMA2RH
477	select HW_HAS_PCI
478	help
479	  This enables support for the NEC Electronics Mark-eins boards.
480
481config MACH_VR41XX
482	bool "NEC VR4100 series based machines"
483	select CEVT_R4K
484	select CSRC_R4K
485	select SYS_HAS_CPU_VR41XX
486	select SYS_SUPPORTS_MIPS16
487	select ARCH_REQUIRE_GPIOLIB
488
489config NXP_STB220
490	bool "NXP STB220 board"
491	select SOC_PNX833X
492	help
493	 Support for NXP Semiconductors STB220 Development Board.
494
495config NXP_STB225
496	bool "NXP 225 board"
497	select SOC_PNX833X
498	select SOC_PNX8335
499	help
500	 Support for NXP Semiconductors STB225 Development Board.
501
502config PMC_MSP
503	bool "PMC-Sierra MSP chipsets"
504	select CEVT_R4K
505	select CSRC_R4K
506	select DMA_NONCOHERENT
507	select SWAP_IO_SPACE
508	select NO_EXCEPT_FILL
509	select BOOT_RAW
510	select SYS_HAS_CPU_MIPS32_R1
511	select SYS_HAS_CPU_MIPS32_R2
512	select SYS_SUPPORTS_32BIT_KERNEL
513	select SYS_SUPPORTS_BIG_ENDIAN
514	select SYS_SUPPORTS_MIPS16
515	select IRQ_CPU
516	select SERIAL_8250
517	select SERIAL_8250_CONSOLE
518	select USB_EHCI_BIG_ENDIAN_MMIO
519	select USB_EHCI_BIG_ENDIAN_DESC
520	help
521	  This adds support for the PMC-Sierra family of Multi-Service
522	  Processor System-On-A-Chips.  These parts include a number
523	  of integrated peripherals, interfaces and DSPs in addition to
524	  a variety of MIPS cores.
525
526config RALINK
527	bool "Ralink based machines"
528	select CEVT_R4K
529	select CSRC_R4K
530	select BOOT_RAW
531	select DMA_NONCOHERENT
532	select IRQ_CPU
533	select USE_OF
534	select SYS_HAS_CPU_MIPS32_R1
535	select SYS_HAS_CPU_MIPS32_R2
536	select SYS_SUPPORTS_32BIT_KERNEL
537	select SYS_SUPPORTS_LITTLE_ENDIAN
538	select SYS_SUPPORTS_MIPS16
539	select SYS_HAS_EARLY_PRINTK
540	select HAVE_MACH_CLKDEV
541	select CLKDEV_LOOKUP
542	select ARCH_HAS_RESET_CONTROLLER
543	select RESET_CONTROLLER
544
545config SGI_IP22
546	bool "SGI IP22 (Indy/Indigo2)"
547	select FW_ARC
548	select FW_ARC32
549	select BOOT_ELF32
550	select CEVT_R4K
551	select CSRC_R4K
552	select DEFAULT_SGI_PARTITION
553	select DMA_NONCOHERENT
554	select HW_HAS_EISA
555	select I8253
556	select I8259
557	select IP22_CPU_SCACHE
558	select IRQ_CPU
559	select GENERIC_ISA_DMA_SUPPORT_BROKEN
560	select SGI_HAS_I8042
561	select SGI_HAS_INDYDOG
562	select SGI_HAS_HAL2
563	select SGI_HAS_SEEQ
564	select SGI_HAS_WD93
565	select SGI_HAS_ZILOG
566	select SWAP_IO_SPACE
567	select SYS_HAS_CPU_R4X00
568	select SYS_HAS_CPU_R5000
569	#
570	# Disable EARLY_PRINTK for now since it leads to overwritten prom
571	# memory during early boot on some machines.
572	#
573	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
574	# for a more details discussion
575	#
576	# select SYS_HAS_EARLY_PRINTK
577	select SYS_SUPPORTS_32BIT_KERNEL
578	select SYS_SUPPORTS_64BIT_KERNEL
579	select SYS_SUPPORTS_BIG_ENDIAN
580	select MIPS_L1_CACHE_SHIFT_7
581	help
582	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
583	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
584	  that runs on these, say Y here.
585
586config SGI_IP27
587	bool "SGI IP27 (Origin200/2000)"
588	select FW_ARC
589	select FW_ARC64
590	select BOOT_ELF64
591	select DEFAULT_SGI_PARTITION
592	select DMA_COHERENT
593	select SYS_HAS_EARLY_PRINTK
594	select HW_HAS_PCI
595	select NR_CPUS_DEFAULT_64
596	select SYS_HAS_CPU_R10000
597	select SYS_SUPPORTS_64BIT_KERNEL
598	select SYS_SUPPORTS_BIG_ENDIAN
599	select SYS_SUPPORTS_NUMA
600	select SYS_SUPPORTS_SMP
601	select MIPS_L1_CACHE_SHIFT_7
602	help
603	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
604	  workstations.  To compile a Linux kernel that runs on these, say Y
605	  here.
606
607config SGI_IP28
608	bool "SGI IP28 (Indigo2 R10k)"
609	select FW_ARC
610	select FW_ARC64
611	select BOOT_ELF64
612	select CEVT_R4K
613	select CSRC_R4K
614	select DEFAULT_SGI_PARTITION
615	select DMA_NONCOHERENT
616	select GENERIC_ISA_DMA_SUPPORT_BROKEN
617	select IRQ_CPU
618	select HW_HAS_EISA
619	select I8253
620	select I8259
621	select SGI_HAS_I8042
622	select SGI_HAS_INDYDOG
623	select SGI_HAS_HAL2
624	select SGI_HAS_SEEQ
625	select SGI_HAS_WD93
626	select SGI_HAS_ZILOG
627	select SWAP_IO_SPACE
628	select SYS_HAS_CPU_R10000
629	#
630	# Disable EARLY_PRINTK for now since it leads to overwritten prom
631	# memory during early boot on some machines.
632	#
633	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
634	# for a more details discussion
635	#
636	# select SYS_HAS_EARLY_PRINTK
637	select SYS_SUPPORTS_64BIT_KERNEL
638	select SYS_SUPPORTS_BIG_ENDIAN
639	select MIPS_L1_CACHE_SHIFT_7
640      help
641        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
642        kernel that runs on these, say Y here.
643
644config SGI_IP32
645	bool "SGI IP32 (O2)"
646	select FW_ARC
647	select FW_ARC32
648	select BOOT_ELF32
649	select CEVT_R4K
650	select CSRC_R4K
651	select DMA_NONCOHERENT
652	select HW_HAS_PCI
653	select IRQ_CPU
654	select R5000_CPU_SCACHE
655	select RM7000_CPU_SCACHE
656	select SYS_HAS_CPU_R5000
657	select SYS_HAS_CPU_R10000 if BROKEN
658	select SYS_HAS_CPU_RM7000
659	select SYS_HAS_CPU_NEVADA
660	select SYS_SUPPORTS_64BIT_KERNEL
661	select SYS_SUPPORTS_BIG_ENDIAN
662	help
663	  If you want this kernel to run on SGI O2 workstation, say Y here.
664
665config SIBYTE_CRHINE
666	bool "Sibyte BCM91120C-CRhine"
667	select BOOT_ELF32
668	select DMA_COHERENT
669	select SIBYTE_BCM1120
670	select SWAP_IO_SPACE
671	select SYS_HAS_CPU_SB1
672	select SYS_SUPPORTS_BIG_ENDIAN
673	select SYS_SUPPORTS_LITTLE_ENDIAN
674
675config SIBYTE_CARMEL
676	bool "Sibyte BCM91120x-Carmel"
677	select BOOT_ELF32
678	select DMA_COHERENT
679	select SIBYTE_BCM1120
680	select SWAP_IO_SPACE
681	select SYS_HAS_CPU_SB1
682	select SYS_SUPPORTS_BIG_ENDIAN
683	select SYS_SUPPORTS_LITTLE_ENDIAN
684
685config SIBYTE_CRHONE
686	bool "Sibyte BCM91125C-CRhone"
687	select BOOT_ELF32
688	select DMA_COHERENT
689	select SIBYTE_BCM1125
690	select SWAP_IO_SPACE
691	select SYS_HAS_CPU_SB1
692	select SYS_SUPPORTS_BIG_ENDIAN
693	select SYS_SUPPORTS_HIGHMEM
694	select SYS_SUPPORTS_LITTLE_ENDIAN
695
696config SIBYTE_RHONE
697	bool "Sibyte BCM91125E-Rhone"
698	select BOOT_ELF32
699	select DMA_COHERENT
700	select SIBYTE_BCM1125H
701	select SWAP_IO_SPACE
702	select SYS_HAS_CPU_SB1
703	select SYS_SUPPORTS_BIG_ENDIAN
704	select SYS_SUPPORTS_LITTLE_ENDIAN
705
706config SIBYTE_SWARM
707	bool "Sibyte BCM91250A-SWARM"
708	select BOOT_ELF32
709	select DMA_COHERENT
710	select HAVE_PATA_PLATFORM
711	select SIBYTE_SB1250
712	select SWAP_IO_SPACE
713	select SYS_HAS_CPU_SB1
714	select SYS_SUPPORTS_BIG_ENDIAN
715	select SYS_SUPPORTS_HIGHMEM
716	select SYS_SUPPORTS_LITTLE_ENDIAN
717	select ZONE_DMA32 if 64BIT
718
719config SIBYTE_LITTLESUR
720	bool "Sibyte BCM91250C2-LittleSur"
721	select BOOT_ELF32
722	select DMA_COHERENT
723	select HAVE_PATA_PLATFORM
724	select SIBYTE_SB1250
725	select SWAP_IO_SPACE
726	select SYS_HAS_CPU_SB1
727	select SYS_SUPPORTS_BIG_ENDIAN
728	select SYS_SUPPORTS_HIGHMEM
729	select SYS_SUPPORTS_LITTLE_ENDIAN
730
731config SIBYTE_SENTOSA
732	bool "Sibyte BCM91250E-Sentosa"
733	select BOOT_ELF32
734	select DMA_COHERENT
735	select SIBYTE_SB1250
736	select SWAP_IO_SPACE
737	select SYS_HAS_CPU_SB1
738	select SYS_SUPPORTS_BIG_ENDIAN
739	select SYS_SUPPORTS_LITTLE_ENDIAN
740
741config SIBYTE_BIGSUR
742	bool "Sibyte BCM91480B-BigSur"
743	select BOOT_ELF32
744	select DMA_COHERENT
745	select NR_CPUS_DEFAULT_4
746	select SIBYTE_BCM1x80
747	select SWAP_IO_SPACE
748	select SYS_HAS_CPU_SB1
749	select SYS_SUPPORTS_BIG_ENDIAN
750	select SYS_SUPPORTS_HIGHMEM
751	select SYS_SUPPORTS_LITTLE_ENDIAN
752	select ZONE_DMA32 if 64BIT
753
754config SNI_RM
755	bool "SNI RM200/300/400"
756	select FW_ARC if CPU_LITTLE_ENDIAN
757	select FW_ARC32 if CPU_LITTLE_ENDIAN
758	select FW_SNIPROM if CPU_BIG_ENDIAN
759	select ARCH_MAY_HAVE_PC_FDC
760	select BOOT_ELF32
761	select CEVT_R4K
762	select CSRC_R4K
763	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
764	select DMA_NONCOHERENT
765	select GENERIC_ISA_DMA
766	select HAVE_PCSPKR_PLATFORM
767	select HW_HAS_EISA
768	select HW_HAS_PCI
769	select IRQ_CPU
770	select I8253
771	select I8259
772	select ISA
773	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
774	select SYS_HAS_CPU_R4X00
775	select SYS_HAS_CPU_R5000
776	select SYS_HAS_CPU_R10000
777	select R5000_CPU_SCACHE
778	select SYS_HAS_EARLY_PRINTK
779	select SYS_SUPPORTS_32BIT_KERNEL
780	select SYS_SUPPORTS_64BIT_KERNEL
781	select SYS_SUPPORTS_BIG_ENDIAN
782	select SYS_SUPPORTS_HIGHMEM
783	select SYS_SUPPORTS_LITTLE_ENDIAN
784	help
785	  The SNI RM200/300/400 are MIPS-based machines manufactured by
786	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
787	  Technology and now in turn merged with Fujitsu.  Say Y here to
788	  support this machine type.
789
790config MACH_TX39XX
791	bool "Toshiba TX39 series based machines"
792
793config MACH_TX49XX
794	bool "Toshiba TX49 series based machines"
795
796config MIKROTIK_RB532
797	bool "Mikrotik RB532 boards"
798	select CEVT_R4K
799	select CSRC_R4K
800	select DMA_NONCOHERENT
801	select HW_HAS_PCI
802	select IRQ_CPU
803	select SYS_HAS_CPU_MIPS32_R1
804	select SYS_SUPPORTS_32BIT_KERNEL
805	select SYS_SUPPORTS_LITTLE_ENDIAN
806	select SWAP_IO_SPACE
807	select BOOT_RAW
808	select ARCH_REQUIRE_GPIOLIB
809	select MIPS_L1_CACHE_SHIFT_4
810	help
811	  Support the Mikrotik(tm) RouterBoard 532 series,
812	  based on the IDT RC32434 SoC.
813
814config CAVIUM_OCTEON_SOC
815	bool "Cavium Networks Octeon SoC based boards"
816	select CEVT_R4K
817	select ARCH_PHYS_ADDR_T_64BIT
818	select DMA_COHERENT
819	select SYS_SUPPORTS_64BIT_KERNEL
820	select SYS_SUPPORTS_BIG_ENDIAN
821	select EDAC_SUPPORT
822	select SYS_SUPPORTS_LITTLE_ENDIAN
823	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
824	select SYS_HAS_EARLY_PRINTK
825	select SYS_HAS_CPU_CAVIUM_OCTEON
826	select SWAP_IO_SPACE
827	select HW_HAS_PCI
828	select ZONE_DMA32
829	select HOLES_IN_ZONE
830	select ARCH_REQUIRE_GPIOLIB
831	select LIBFDT
832	select USE_OF
833	select ARCH_SPARSEMEM_ENABLE
834	select SYS_SUPPORTS_SMP
835	select NR_CPUS_DEFAULT_16
836	select BUILTIN_DTB
837	select MTD_COMPLEX_MAPPINGS
838	help
839	  This option supports all of the Octeon reference boards from Cavium
840	  Networks. It builds a kernel that dynamically determines the Octeon
841	  CPU type and supports all known board reference implementations.
842	  Some of the supported boards are:
843		EBT3000
844		EBH3000
845		EBH3100
846		Thunder
847		Kodama
848		Hikari
849	  Say Y here for most Octeon reference boards.
850
851config NLM_XLR_BOARD
852	bool "Netlogic XLR/XLS based systems"
853	select BOOT_ELF32
854	select NLM_COMMON
855	select SYS_HAS_CPU_XLR
856	select SYS_SUPPORTS_SMP
857	select HW_HAS_PCI
858	select SWAP_IO_SPACE
859	select SYS_SUPPORTS_32BIT_KERNEL
860	select SYS_SUPPORTS_64BIT_KERNEL
861	select ARCH_PHYS_ADDR_T_64BIT
862	select SYS_SUPPORTS_BIG_ENDIAN
863	select SYS_SUPPORTS_HIGHMEM
864	select DMA_COHERENT
865	select NR_CPUS_DEFAULT_32
866	select CEVT_R4K
867	select CSRC_R4K
868	select IRQ_CPU
869	select ZONE_DMA32 if 64BIT
870	select SYNC_R4K
871	select SYS_HAS_EARLY_PRINTK
872	select SYS_SUPPORTS_ZBOOT
873	select SYS_SUPPORTS_ZBOOT_UART16550
874	help
875	  Support for systems based on Netlogic XLR and XLS processors.
876	  Say Y here if you have a XLR or XLS based board.
877
878config NLM_XLP_BOARD
879	bool "Netlogic XLP based systems"
880	select BOOT_ELF32
881	select NLM_COMMON
882	select SYS_HAS_CPU_XLP
883	select SYS_SUPPORTS_SMP
884	select HW_HAS_PCI
885	select SYS_SUPPORTS_32BIT_KERNEL
886	select SYS_SUPPORTS_64BIT_KERNEL
887	select ARCH_PHYS_ADDR_T_64BIT
888	select SYS_SUPPORTS_BIG_ENDIAN
889	select SYS_SUPPORTS_LITTLE_ENDIAN
890	select SYS_SUPPORTS_HIGHMEM
891	select DMA_COHERENT
892	select NR_CPUS_DEFAULT_32
893	select CEVT_R4K
894	select CSRC_R4K
895	select IRQ_CPU
896	select ZONE_DMA32 if 64BIT
897	select SYNC_R4K
898	select SYS_HAS_EARLY_PRINTK
899	select USE_OF
900	select SYS_SUPPORTS_ZBOOT
901	select SYS_SUPPORTS_ZBOOT_UART16550
902	help
903	  This board is based on Netlogic XLP Processor.
904	  Say Y here if you have a XLP based board.
905
906config MIPS_PARAVIRT
907	bool "Para-Virtualized guest system"
908	select CEVT_R4K
909	select CSRC_R4K
910	select DMA_COHERENT
911	select SYS_SUPPORTS_64BIT_KERNEL
912	select SYS_SUPPORTS_32BIT_KERNEL
913	select SYS_SUPPORTS_BIG_ENDIAN
914	select SYS_SUPPORTS_SMP
915	select NR_CPUS_DEFAULT_4
916	select SYS_HAS_EARLY_PRINTK
917	select SYS_HAS_CPU_MIPS32_R2
918	select SYS_HAS_CPU_MIPS64_R2
919	select SYS_HAS_CPU_CAVIUM_OCTEON
920	select HW_HAS_PCI
921	select SWAP_IO_SPACE
922	help
923	  This option supports guest running under ????
924
925endchoice
926
927source "arch/mips/alchemy/Kconfig"
928source "arch/mips/ath25/Kconfig"
929source "arch/mips/ath79/Kconfig"
930source "arch/mips/bcm47xx/Kconfig"
931source "arch/mips/bcm63xx/Kconfig"
932source "arch/mips/bmips/Kconfig"
933source "arch/mips/jazz/Kconfig"
934source "arch/mips/jz4740/Kconfig"
935source "arch/mips/lantiq/Kconfig"
936source "arch/mips/lasat/Kconfig"
937source "arch/mips/pmcs-msp71xx/Kconfig"
938source "arch/mips/ralink/Kconfig"
939source "arch/mips/sgi-ip27/Kconfig"
940source "arch/mips/sibyte/Kconfig"
941source "arch/mips/txx9/Kconfig"
942source "arch/mips/vr41xx/Kconfig"
943source "arch/mips/cavium-octeon/Kconfig"
944source "arch/mips/loongson/Kconfig"
945source "arch/mips/loongson1/Kconfig"
946source "arch/mips/netlogic/Kconfig"
947source "arch/mips/paravirt/Kconfig"
948
949endmenu
950
951config RWSEM_GENERIC_SPINLOCK
952	bool
953	default y
954
955config RWSEM_XCHGADD_ALGORITHM
956	bool
957
958config ARCH_HAS_ILOG2_U32
959	bool
960	default n
961
962config ARCH_HAS_ILOG2_U64
963	bool
964	default n
965
966config GENERIC_HWEIGHT
967	bool
968	default y
969
970config GENERIC_CALIBRATE_DELAY
971	bool
972	default y
973
974config SCHED_OMIT_FRAME_POINTER
975	bool
976	default y
977
978#
979# Select some configuration options automatically based on user selections.
980#
981config FW_ARC
982	bool
983
984config ARCH_MAY_HAVE_PC_FDC
985	bool
986
987config BOOT_RAW
988	bool
989
990config CEVT_BCM1480
991	bool
992
993config CEVT_DS1287
994	bool
995
996config CEVT_GT641XX
997	bool
998
999config CEVT_R4K
1000	bool
1001
1002config CEVT_SB1250
1003	bool
1004
1005config CEVT_TXX9
1006	bool
1007
1008config CSRC_BCM1480
1009	bool
1010
1011config CSRC_IOASIC
1012	bool
1013
1014config CSRC_R4K
1015	bool
1016
1017config CSRC_SB1250
1018	bool
1019
1020config GPIO_TXX9
1021	select ARCH_REQUIRE_GPIOLIB
1022	bool
1023
1024config FW_CFE
1025	bool
1026
1027config ARCH_DMA_ADDR_T_64BIT
1028	def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1029
1030config DMA_MAYBE_COHERENT
1031	select DMA_NONCOHERENT
1032	bool
1033
1034config DMA_COHERENT
1035	bool
1036
1037config DMA_NONCOHERENT
1038	bool
1039	select NEED_DMA_MAP_STATE
1040
1041config NEED_DMA_MAP_STATE
1042	bool
1043
1044config SYS_HAS_EARLY_PRINTK
1045	bool
1046
1047config HOTPLUG_CPU
1048	bool "Support for hot-pluggable CPUs"
1049	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1050	help
1051	  Say Y here to allow turning CPUs off and on. CPUs can be
1052	  controlled through /sys/devices/system/cpu.
1053	  (Note: power management support will enable this option
1054	    automatically on SMP systems. )
1055	  Say N if you want to disable CPU hotplug.
1056
1057config SYS_SUPPORTS_HOTPLUG_CPU
1058	bool
1059
1060config I8259
1061	bool
1062	select IRQ_DOMAIN
1063
1064config MIPS_BONITO64
1065	bool
1066
1067config MIPS_MSC
1068	bool
1069
1070config MIPS_NILE4
1071	bool
1072
1073config SYNC_R4K
1074	bool
1075
1076config MIPS_MACHINE
1077	def_bool n
1078
1079config NO_IOPORT_MAP
1080	def_bool n
1081
1082config GENERIC_CSUM
1083	bool
1084
1085config GENERIC_ISA_DMA
1086	bool
1087	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1088	select ISA_DMA_API
1089
1090config GENERIC_ISA_DMA_SUPPORT_BROKEN
1091	bool
1092	select GENERIC_ISA_DMA
1093
1094config ISA_DMA_API
1095	bool
1096
1097config HOLES_IN_ZONE
1098	bool
1099
1100#
1101# Endianness selection.  Sufficiently obscure so many users don't know what to
1102# answer,so we try hard to limit the available choices.  Also the use of a
1103# choice statement should be more obvious to the user.
1104#
1105choice
1106	prompt "Endianness selection"
1107	help
1108	  Some MIPS machines can be configured for either little or big endian
1109	  byte order. These modes require different kernels and a different
1110	  Linux distribution.  In general there is one preferred byteorder for a
1111	  particular system but some systems are just as commonly used in the
1112	  one or the other endianness.
1113
1114config CPU_BIG_ENDIAN
1115	bool "Big endian"
1116	depends on SYS_SUPPORTS_BIG_ENDIAN
1117
1118config CPU_LITTLE_ENDIAN
1119	bool "Little endian"
1120	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1121
1122endchoice
1123
1124config EXPORT_UASM
1125	bool
1126
1127config SYS_SUPPORTS_APM_EMULATION
1128	bool
1129
1130config SYS_SUPPORTS_BIG_ENDIAN
1131	bool
1132
1133config SYS_SUPPORTS_LITTLE_ENDIAN
1134	bool
1135
1136config SYS_SUPPORTS_HUGETLBFS
1137	bool
1138	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1139	default y
1140
1141config MIPS_HUGE_TLB_SUPPORT
1142	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1143
1144config IRQ_CPU
1145	bool
1146	select IRQ_DOMAIN
1147
1148config IRQ_CPU_RM7K
1149	bool
1150
1151config IRQ_MSP_SLP
1152	bool
1153
1154config IRQ_MSP_CIC
1155	bool
1156
1157config IRQ_TXX9
1158	bool
1159
1160config IRQ_GT641XX
1161	bool
1162
1163config PCI_GT64XXX_PCI0
1164	bool
1165
1166config NO_EXCEPT_FILL
1167	bool
1168
1169config SOC_EMMA2RH
1170	bool
1171	select CEVT_R4K
1172	select CSRC_R4K
1173	select DMA_NONCOHERENT
1174	select IRQ_CPU
1175	select SWAP_IO_SPACE
1176	select SYS_HAS_CPU_R5500
1177	select SYS_SUPPORTS_32BIT_KERNEL
1178	select SYS_SUPPORTS_64BIT_KERNEL
1179	select SYS_SUPPORTS_BIG_ENDIAN
1180
1181config SOC_PNX833X
1182	bool
1183	select CEVT_R4K
1184	select CSRC_R4K
1185	select IRQ_CPU
1186	select DMA_NONCOHERENT
1187	select SYS_HAS_CPU_MIPS32_R2
1188	select SYS_SUPPORTS_32BIT_KERNEL
1189	select SYS_SUPPORTS_LITTLE_ENDIAN
1190	select SYS_SUPPORTS_BIG_ENDIAN
1191	select SYS_SUPPORTS_MIPS16
1192	select CPU_MIPSR2_IRQ_VI
1193
1194config SOC_PNX8335
1195	bool
1196	select SOC_PNX833X
1197
1198config MIPS_SPRAM
1199	bool
1200
1201config SWAP_IO_SPACE
1202	bool
1203
1204config SGI_HAS_INDYDOG
1205	bool
1206
1207config SGI_HAS_HAL2
1208	bool
1209
1210config SGI_HAS_SEEQ
1211	bool
1212
1213config SGI_HAS_WD93
1214	bool
1215
1216config SGI_HAS_ZILOG
1217	bool
1218
1219config SGI_HAS_I8042
1220	bool
1221
1222config DEFAULT_SGI_PARTITION
1223	bool
1224
1225config FW_ARC32
1226	bool
1227
1228config FW_SNIPROM
1229	bool
1230
1231config BOOT_ELF32
1232	bool
1233
1234config MIPS_L1_CACHE_SHIFT_4
1235	bool
1236
1237config MIPS_L1_CACHE_SHIFT_5
1238	bool
1239
1240config MIPS_L1_CACHE_SHIFT_6
1241	bool
1242
1243config MIPS_L1_CACHE_SHIFT_7
1244	bool
1245
1246config MIPS_L1_CACHE_SHIFT
1247	int
1248	default "7" if MIPS_L1_CACHE_SHIFT_7
1249	default "6" if MIPS_L1_CACHE_SHIFT_6
1250	default "5" if MIPS_L1_CACHE_SHIFT_5
1251	default "4" if MIPS_L1_CACHE_SHIFT_4
1252	default "5"
1253
1254config HAVE_STD_PC_SERIAL_PORT
1255	bool
1256
1257config ARC_CONSOLE
1258	bool "ARC console support"
1259	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1260
1261config ARC_MEMORY
1262	bool
1263	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1264	default y
1265
1266config ARC_PROMLIB
1267	bool
1268	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1269	default y
1270
1271config FW_ARC64
1272	bool
1273
1274config BOOT_ELF64
1275	bool
1276
1277menu "CPU selection"
1278
1279choice
1280	prompt "CPU type"
1281	default CPU_R4X00
1282
1283config CPU_LOONGSON3
1284	bool "Loongson 3 CPU"
1285	depends on SYS_HAS_CPU_LOONGSON3
1286	select CPU_SUPPORTS_64BIT_KERNEL
1287	select CPU_SUPPORTS_HIGHMEM
1288	select CPU_SUPPORTS_HUGEPAGES
1289	select WEAK_ORDERING
1290	select WEAK_REORDERING_BEYOND_LLSC
1291	select ARCH_REQUIRE_GPIOLIB
1292	help
1293		The Loongson 3 processor implements the MIPS64R2 instruction
1294		set with many extensions.
1295
1296config CPU_LOONGSON2E
1297	bool "Loongson 2E"
1298	depends on SYS_HAS_CPU_LOONGSON2E
1299	select CPU_LOONGSON2
1300	help
1301	  The Loongson 2E processor implements the MIPS III instruction set
1302	  with many extensions.
1303
1304	  It has an internal FPGA northbridge, which is compatible to
1305	  bonito64.
1306
1307config CPU_LOONGSON2F
1308	bool "Loongson 2F"
1309	depends on SYS_HAS_CPU_LOONGSON2F
1310	select CPU_LOONGSON2
1311	select ARCH_REQUIRE_GPIOLIB
1312	help
1313	  The Loongson 2F processor implements the MIPS III instruction set
1314	  with many extensions.
1315
1316	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1317	  have a similar programming interface with FPGA northbridge used in
1318	  Loongson2E.
1319
1320config CPU_LOONGSON1B
1321	bool "Loongson 1B"
1322	depends on SYS_HAS_CPU_LOONGSON1B
1323	select CPU_LOONGSON1
1324	help
1325	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1326	  release 2 instruction set.
1327
1328config CPU_MIPS32_R1
1329	bool "MIPS32 Release 1"
1330	depends on SYS_HAS_CPU_MIPS32_R1
1331	select CPU_HAS_PREFETCH
1332	select CPU_SUPPORTS_32BIT_KERNEL
1333	select CPU_SUPPORTS_HIGHMEM
1334	help
1335	  Choose this option to build a kernel for release 1 or later of the
1336	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1337	  MIPS processor are based on a MIPS32 processor.  If you know the
1338	  specific type of processor in your system, choose those that one
1339	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1340	  Release 2 of the MIPS32 architecture is available since several
1341	  years so chances are you even have a MIPS32 Release 2 processor
1342	  in which case you should choose CPU_MIPS32_R2 instead for better
1343	  performance.
1344
1345config CPU_MIPS32_R2
1346	bool "MIPS32 Release 2"
1347	depends on SYS_HAS_CPU_MIPS32_R2
1348	select CPU_HAS_PREFETCH
1349	select CPU_SUPPORTS_32BIT_KERNEL
1350	select CPU_SUPPORTS_HIGHMEM
1351	select CPU_SUPPORTS_MSA
1352	select HAVE_KVM
1353	help
1354	  Choose this option to build a kernel for release 2 or later of the
1355	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1356	  MIPS processor are based on a MIPS32 processor.  If you know the
1357	  specific type of processor in your system, choose those that one
1358	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1359
1360config CPU_MIPS32_R6
1361	bool "MIPS32 Release 6 (EXPERIMENTAL)"
1362	depends on SYS_HAS_CPU_MIPS32_R6
1363	select CPU_HAS_PREFETCH
1364	select CPU_SUPPORTS_32BIT_KERNEL
1365	select CPU_SUPPORTS_HIGHMEM
1366	select CPU_SUPPORTS_MSA
1367	select GENERIC_CSUM
1368	select HAVE_KVM
1369	select MIPS_O32_FP64_SUPPORT
1370	help
1371	  Choose this option to build a kernel for release 6 or later of the
1372	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1373	  family, are based on a MIPS32r6 processor. If you own an older
1374	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1375
1376config CPU_MIPS64_R1
1377	bool "MIPS64 Release 1"
1378	depends on SYS_HAS_CPU_MIPS64_R1
1379	select CPU_HAS_PREFETCH
1380	select CPU_SUPPORTS_32BIT_KERNEL
1381	select CPU_SUPPORTS_64BIT_KERNEL
1382	select CPU_SUPPORTS_HIGHMEM
1383	select CPU_SUPPORTS_HUGEPAGES
1384	help
1385	  Choose this option to build a kernel for release 1 or later of the
1386	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1387	  MIPS processor are based on a MIPS64 processor.  If you know the
1388	  specific type of processor in your system, choose those that one
1389	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1390	  Release 2 of the MIPS64 architecture is available since several
1391	  years so chances are you even have a MIPS64 Release 2 processor
1392	  in which case you should choose CPU_MIPS64_R2 instead for better
1393	  performance.
1394
1395config CPU_MIPS64_R2
1396	bool "MIPS64 Release 2"
1397	depends on SYS_HAS_CPU_MIPS64_R2
1398	select CPU_HAS_PREFETCH
1399	select CPU_SUPPORTS_32BIT_KERNEL
1400	select CPU_SUPPORTS_64BIT_KERNEL
1401	select CPU_SUPPORTS_HIGHMEM
1402	select CPU_SUPPORTS_HUGEPAGES
1403	select CPU_SUPPORTS_MSA
1404	help
1405	  Choose this option to build a kernel for release 2 or later of the
1406	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1407	  MIPS processor are based on a MIPS64 processor.  If you know the
1408	  specific type of processor in your system, choose those that one
1409	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1410
1411config CPU_MIPS64_R6
1412	bool "MIPS64 Release 6 (EXPERIMENTAL)"
1413	depends on SYS_HAS_CPU_MIPS64_R6
1414	select CPU_HAS_PREFETCH
1415	select CPU_SUPPORTS_32BIT_KERNEL
1416	select CPU_SUPPORTS_64BIT_KERNEL
1417	select CPU_SUPPORTS_HIGHMEM
1418	select CPU_SUPPORTS_MSA
1419	select GENERIC_CSUM
1420	select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1421	help
1422	  Choose this option to build a kernel for release 6 or later of the
1423	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1424	  family, are based on a MIPS64r6 processor. If you own an older
1425	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1426
1427config CPU_R3000
1428	bool "R3000"
1429	depends on SYS_HAS_CPU_R3000
1430	select CPU_HAS_WB
1431	select CPU_SUPPORTS_32BIT_KERNEL
1432	select CPU_SUPPORTS_HIGHMEM
1433	help
1434	  Please make sure to pick the right CPU type. Linux/MIPS is not
1435	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1436	  *not* work on R4000 machines and vice versa.  However, since most
1437	  of the supported machines have an R4000 (or similar) CPU, R4x00
1438	  might be a safe bet.  If the resulting kernel does not work,
1439	  try to recompile with R3000.
1440
1441config CPU_TX39XX
1442	bool "R39XX"
1443	depends on SYS_HAS_CPU_TX39XX
1444	select CPU_SUPPORTS_32BIT_KERNEL
1445
1446config CPU_VR41XX
1447	bool "R41xx"
1448	depends on SYS_HAS_CPU_VR41XX
1449	select CPU_SUPPORTS_32BIT_KERNEL
1450	select CPU_SUPPORTS_64BIT_KERNEL
1451	help
1452	  The options selects support for the NEC VR4100 series of processors.
1453	  Only choose this option if you have one of these processors as a
1454	  kernel built with this option will not run on any other type of
1455	  processor or vice versa.
1456
1457config CPU_R4300
1458	bool "R4300"
1459	depends on SYS_HAS_CPU_R4300
1460	select CPU_SUPPORTS_32BIT_KERNEL
1461	select CPU_SUPPORTS_64BIT_KERNEL
1462	help
1463	  MIPS Technologies R4300-series processors.
1464
1465config CPU_R4X00
1466	bool "R4x00"
1467	depends on SYS_HAS_CPU_R4X00
1468	select CPU_SUPPORTS_32BIT_KERNEL
1469	select CPU_SUPPORTS_64BIT_KERNEL
1470	select CPU_SUPPORTS_HUGEPAGES
1471	help
1472	  MIPS Technologies R4000-series processors other than 4300, including
1473	  the R4000, R4400, R4600, and 4700.
1474
1475config CPU_TX49XX
1476	bool "R49XX"
1477	depends on SYS_HAS_CPU_TX49XX
1478	select CPU_HAS_PREFETCH
1479	select CPU_SUPPORTS_32BIT_KERNEL
1480	select CPU_SUPPORTS_64BIT_KERNEL
1481	select CPU_SUPPORTS_HUGEPAGES
1482
1483config CPU_R5000
1484	bool "R5000"
1485	depends on SYS_HAS_CPU_R5000
1486	select CPU_SUPPORTS_32BIT_KERNEL
1487	select CPU_SUPPORTS_64BIT_KERNEL
1488	select CPU_SUPPORTS_HUGEPAGES
1489	help
1490	  MIPS Technologies R5000-series processors other than the Nevada.
1491
1492config CPU_R5432
1493	bool "R5432"
1494	depends on SYS_HAS_CPU_R5432
1495	select CPU_SUPPORTS_32BIT_KERNEL
1496	select CPU_SUPPORTS_64BIT_KERNEL
1497	select CPU_SUPPORTS_HUGEPAGES
1498
1499config CPU_R5500
1500	bool "R5500"
1501	depends on SYS_HAS_CPU_R5500
1502	select CPU_SUPPORTS_32BIT_KERNEL
1503	select CPU_SUPPORTS_64BIT_KERNEL
1504	select CPU_SUPPORTS_HUGEPAGES
1505	help
1506	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1507	  instruction set.
1508
1509config CPU_R6000
1510	bool "R6000"
1511	depends on SYS_HAS_CPU_R6000
1512	select CPU_SUPPORTS_32BIT_KERNEL
1513	help
1514	  MIPS Technologies R6000 and R6000A series processors.  Note these
1515	  processors are extremely rare and the support for them is incomplete.
1516
1517config CPU_NEVADA
1518	bool "RM52xx"
1519	depends on SYS_HAS_CPU_NEVADA
1520	select CPU_SUPPORTS_32BIT_KERNEL
1521	select CPU_SUPPORTS_64BIT_KERNEL
1522	select CPU_SUPPORTS_HUGEPAGES
1523	help
1524	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1525
1526config CPU_R8000
1527	bool "R8000"
1528	depends on SYS_HAS_CPU_R8000
1529	select CPU_HAS_PREFETCH
1530	select CPU_SUPPORTS_64BIT_KERNEL
1531	help
1532	  MIPS Technologies R8000 processors.  Note these processors are
1533	  uncommon and the support for them is incomplete.
1534
1535config CPU_R10000
1536	bool "R10000"
1537	depends on SYS_HAS_CPU_R10000
1538	select CPU_HAS_PREFETCH
1539	select CPU_SUPPORTS_32BIT_KERNEL
1540	select CPU_SUPPORTS_64BIT_KERNEL
1541	select CPU_SUPPORTS_HIGHMEM
1542	select CPU_SUPPORTS_HUGEPAGES
1543	help
1544	  MIPS Technologies R10000-series processors.
1545
1546config CPU_RM7000
1547	bool "RM7000"
1548	depends on SYS_HAS_CPU_RM7000
1549	select CPU_HAS_PREFETCH
1550	select CPU_SUPPORTS_32BIT_KERNEL
1551	select CPU_SUPPORTS_64BIT_KERNEL
1552	select CPU_SUPPORTS_HIGHMEM
1553	select CPU_SUPPORTS_HUGEPAGES
1554
1555config CPU_SB1
1556	bool "SB1"
1557	depends on SYS_HAS_CPU_SB1
1558	select CPU_SUPPORTS_32BIT_KERNEL
1559	select CPU_SUPPORTS_64BIT_KERNEL
1560	select CPU_SUPPORTS_HIGHMEM
1561	select CPU_SUPPORTS_HUGEPAGES
1562	select WEAK_ORDERING
1563
1564config CPU_CAVIUM_OCTEON
1565	bool "Cavium Octeon processor"
1566	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1567	select CPU_HAS_PREFETCH
1568	select CPU_SUPPORTS_64BIT_KERNEL
1569	select WEAK_ORDERING
1570	select CPU_SUPPORTS_HIGHMEM
1571	select CPU_SUPPORTS_HUGEPAGES
1572	select USB_EHCI_BIG_ENDIAN_MMIO
1573	select MIPS_L1_CACHE_SHIFT_7
1574	help
1575	  The Cavium Octeon processor is a highly integrated chip containing
1576	  many ethernet hardware widgets for networking tasks. The processor
1577	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1578	  Full details can be found at http://www.caviumnetworks.com.
1579
1580config CPU_BMIPS
1581	bool "Broadcom BMIPS"
1582	depends on SYS_HAS_CPU_BMIPS
1583	select CPU_MIPS32
1584	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1585	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1586	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1587	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1588	select CPU_SUPPORTS_32BIT_KERNEL
1589	select DMA_NONCOHERENT
1590	select IRQ_CPU
1591	select SWAP_IO_SPACE
1592	select WEAK_ORDERING
1593	select CPU_SUPPORTS_HIGHMEM
1594	select CPU_HAS_PREFETCH
1595	help
1596	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1597
1598config CPU_XLR
1599	bool "Netlogic XLR SoC"
1600	depends on SYS_HAS_CPU_XLR
1601	select CPU_SUPPORTS_32BIT_KERNEL
1602	select CPU_SUPPORTS_64BIT_KERNEL
1603	select CPU_SUPPORTS_HIGHMEM
1604	select CPU_SUPPORTS_HUGEPAGES
1605	select WEAK_ORDERING
1606	select WEAK_REORDERING_BEYOND_LLSC
1607	help
1608	  Netlogic Microsystems XLR/XLS processors.
1609
1610config CPU_XLP
1611	bool "Netlogic XLP SoC"
1612	depends on SYS_HAS_CPU_XLP
1613	select CPU_SUPPORTS_32BIT_KERNEL
1614	select CPU_SUPPORTS_64BIT_KERNEL
1615	select CPU_SUPPORTS_HIGHMEM
1616	select WEAK_ORDERING
1617	select WEAK_REORDERING_BEYOND_LLSC
1618	select CPU_HAS_PREFETCH
1619	select CPU_MIPSR2
1620	select CPU_SUPPORTS_HUGEPAGES
1621	help
1622	  Netlogic Microsystems XLP processors.
1623endchoice
1624
1625config CPU_MIPS32_3_5_FEATURES
1626	bool "MIPS32 Release 3.5 Features"
1627	depends on SYS_HAS_CPU_MIPS32_R3_5
1628	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1629	help
1630	  Choose this option to build a kernel for release 2 or later of the
1631	  MIPS32 architecture including features from the 3.5 release such as
1632	  support for Enhanced Virtual Addressing (EVA).
1633
1634config CPU_MIPS32_3_5_EVA
1635	bool "Enhanced Virtual Addressing (EVA)"
1636	depends on CPU_MIPS32_3_5_FEATURES
1637	select EVA
1638	default y
1639	help
1640	  Choose this option if you want to enable the Enhanced Virtual
1641	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1642	  One of its primary benefits is an increase in the maximum size
1643	  of lowmem (up to 3GB). If unsure, say 'N' here.
1644
1645config CPU_MIPS32_R5_FEATURES
1646	bool "MIPS32 Release 5 Features"
1647	depends on SYS_HAS_CPU_MIPS32_R5
1648	depends on CPU_MIPS32_R2
1649	help
1650	  Choose this option to build a kernel for release 2 or later of the
1651	  MIPS32 architecture including features from release 5 such as
1652	  support for Extended Physical Addressing (XPA).
1653
1654config CPU_MIPS32_R5_XPA
1655	bool "Extended Physical Addressing (XPA)"
1656	depends on CPU_MIPS32_R5_FEATURES
1657	depends on !EVA
1658	depends on !PAGE_SIZE_4KB
1659	depends on SYS_SUPPORTS_HIGHMEM
1660	select XPA
1661	select HIGHMEM
1662	select ARCH_PHYS_ADDR_T_64BIT
1663	default n
1664	help
1665	  Choose this option if you want to enable the Extended Physical
1666	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1667	  benefit is to increase physical addressing equal to or greater
1668	  than 40 bits. Note that this has the side effect of turning on
1669	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1670	  If unsure, say 'N' here.
1671
1672if CPU_LOONGSON2F
1673config CPU_NOP_WORKAROUNDS
1674	bool
1675
1676config CPU_JUMP_WORKAROUNDS
1677	bool
1678
1679config CPU_LOONGSON2F_WORKAROUNDS
1680	bool "Loongson 2F Workarounds"
1681	default y
1682	select CPU_NOP_WORKAROUNDS
1683	select CPU_JUMP_WORKAROUNDS
1684	help
1685	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1686	  require workarounds.  Without workarounds the system may hang
1687	  unexpectedly.  For more information please refer to the gas
1688	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1689
1690	  Loongson 2F03 and later have fixed these issues and no workarounds
1691	  are needed.  The workarounds have no significant side effect on them
1692	  but may decrease the performance of the system so this option should
1693	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1694	  systems.
1695
1696	  If unsure, please say Y.
1697endif # CPU_LOONGSON2F
1698
1699config SYS_SUPPORTS_ZBOOT
1700	bool
1701	select HAVE_KERNEL_GZIP
1702	select HAVE_KERNEL_BZIP2
1703	select HAVE_KERNEL_LZ4
1704	select HAVE_KERNEL_LZMA
1705	select HAVE_KERNEL_LZO
1706	select HAVE_KERNEL_XZ
1707
1708config SYS_SUPPORTS_ZBOOT_UART16550
1709	bool
1710	select SYS_SUPPORTS_ZBOOT
1711
1712config CPU_LOONGSON2
1713	bool
1714	select CPU_SUPPORTS_32BIT_KERNEL
1715	select CPU_SUPPORTS_64BIT_KERNEL
1716	select CPU_SUPPORTS_HIGHMEM
1717	select CPU_SUPPORTS_HUGEPAGES
1718
1719config CPU_LOONGSON1
1720	bool
1721	select CPU_MIPS32
1722	select CPU_MIPSR2
1723	select CPU_HAS_PREFETCH
1724	select CPU_SUPPORTS_32BIT_KERNEL
1725	select CPU_SUPPORTS_HIGHMEM
1726	select CPU_SUPPORTS_CPUFREQ
1727
1728config CPU_BMIPS32_3300
1729	select SMP_UP if SMP
1730	bool
1731
1732config CPU_BMIPS4350
1733	bool
1734	select SYS_SUPPORTS_SMP
1735	select SYS_SUPPORTS_HOTPLUG_CPU
1736
1737config CPU_BMIPS4380
1738	bool
1739	select MIPS_L1_CACHE_SHIFT_6
1740	select SYS_SUPPORTS_SMP
1741	select SYS_SUPPORTS_HOTPLUG_CPU
1742
1743config CPU_BMIPS5000
1744	bool
1745	select MIPS_CPU_SCACHE
1746	select MIPS_L1_CACHE_SHIFT_7
1747	select SYS_SUPPORTS_SMP
1748	select SYS_SUPPORTS_HOTPLUG_CPU
1749
1750config SYS_HAS_CPU_LOONGSON3
1751	bool
1752	select CPU_SUPPORTS_CPUFREQ
1753
1754config SYS_HAS_CPU_LOONGSON2E
1755	bool
1756
1757config SYS_HAS_CPU_LOONGSON2F
1758	bool
1759	select CPU_SUPPORTS_CPUFREQ
1760	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1761	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1762
1763config SYS_HAS_CPU_LOONGSON1B
1764	bool
1765
1766config SYS_HAS_CPU_MIPS32_R1
1767	bool
1768
1769config SYS_HAS_CPU_MIPS32_R2
1770	bool
1771
1772config SYS_HAS_CPU_MIPS32_R3_5
1773	bool
1774
1775config SYS_HAS_CPU_MIPS32_R5
1776	bool
1777
1778config SYS_HAS_CPU_MIPS32_R6
1779	bool
1780
1781config SYS_HAS_CPU_MIPS64_R1
1782	bool
1783
1784config SYS_HAS_CPU_MIPS64_R2
1785	bool
1786
1787config SYS_HAS_CPU_MIPS64_R6
1788	bool
1789
1790config SYS_HAS_CPU_R3000
1791	bool
1792
1793config SYS_HAS_CPU_TX39XX
1794	bool
1795
1796config SYS_HAS_CPU_VR41XX
1797	bool
1798
1799config SYS_HAS_CPU_R4300
1800	bool
1801
1802config SYS_HAS_CPU_R4X00
1803	bool
1804
1805config SYS_HAS_CPU_TX49XX
1806	bool
1807
1808config SYS_HAS_CPU_R5000
1809	bool
1810
1811config SYS_HAS_CPU_R5432
1812	bool
1813
1814config SYS_HAS_CPU_R5500
1815	bool
1816
1817config SYS_HAS_CPU_R6000
1818	bool
1819
1820config SYS_HAS_CPU_NEVADA
1821	bool
1822
1823config SYS_HAS_CPU_R8000
1824	bool
1825
1826config SYS_HAS_CPU_R10000
1827	bool
1828
1829config SYS_HAS_CPU_RM7000
1830	bool
1831
1832config SYS_HAS_CPU_SB1
1833	bool
1834
1835config SYS_HAS_CPU_CAVIUM_OCTEON
1836	bool
1837
1838config SYS_HAS_CPU_BMIPS
1839	bool
1840
1841config SYS_HAS_CPU_BMIPS32_3300
1842	bool
1843	select SYS_HAS_CPU_BMIPS
1844
1845config SYS_HAS_CPU_BMIPS4350
1846	bool
1847	select SYS_HAS_CPU_BMIPS
1848
1849config SYS_HAS_CPU_BMIPS4380
1850	bool
1851	select SYS_HAS_CPU_BMIPS
1852
1853config SYS_HAS_CPU_BMIPS5000
1854	bool
1855	select SYS_HAS_CPU_BMIPS
1856
1857config SYS_HAS_CPU_XLR
1858	bool
1859
1860config SYS_HAS_CPU_XLP
1861	bool
1862
1863config MIPS_MALTA_PM
1864	depends on MIPS_MALTA
1865	depends on PCI
1866	bool
1867	default y
1868
1869#
1870# CPU may reorder R->R, R->W, W->R, W->W
1871# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1872#
1873config WEAK_ORDERING
1874	bool
1875
1876#
1877# CPU may reorder reads and writes beyond LL/SC
1878# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1879#
1880config WEAK_REORDERING_BEYOND_LLSC
1881	bool
1882endmenu
1883
1884#
1885# These two indicate any level of the MIPS32 and MIPS64 architecture
1886#
1887config CPU_MIPS32
1888	bool
1889	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1890
1891config CPU_MIPS64
1892	bool
1893	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1894
1895#
1896# These two indicate the revision of the architecture, either Release 1 or Release 2
1897#
1898config CPU_MIPSR1
1899	bool
1900	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1901
1902config CPU_MIPSR2
1903	bool
1904	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1905	select MIPS_SPRAM
1906
1907config CPU_MIPSR6
1908	bool
1909	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1910	select MIPS_SPRAM
1911
1912config EVA
1913	bool
1914
1915config XPA
1916	bool
1917
1918config SYS_SUPPORTS_32BIT_KERNEL
1919	bool
1920config SYS_SUPPORTS_64BIT_KERNEL
1921	bool
1922config CPU_SUPPORTS_32BIT_KERNEL
1923	bool
1924config CPU_SUPPORTS_64BIT_KERNEL
1925	bool
1926config CPU_SUPPORTS_CPUFREQ
1927	bool
1928config CPU_SUPPORTS_ADDRWINCFG
1929	bool
1930config CPU_SUPPORTS_HUGEPAGES
1931	bool
1932config CPU_SUPPORTS_UNCACHED_ACCELERATED
1933	bool
1934config MIPS_PGD_C0_CONTEXT
1935	bool
1936	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1937
1938#
1939# Set to y for ptrace access to watch registers.
1940#
1941config HARDWARE_WATCHPOINTS
1942       bool
1943       default y if CPU_MIPSR1 || CPU_MIPSR2
1944
1945menu "Kernel type"
1946
1947choice
1948	prompt "Kernel code model"
1949	help
1950	  You should only select this option if you have a workload that
1951	  actually benefits from 64-bit processing or if your machine has
1952	  large memory.  You will only be presented a single option in this
1953	  menu if your system does not support both 32-bit and 64-bit kernels.
1954
1955config 32BIT
1956	bool "32-bit kernel"
1957	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1958	select TRAD_SIGNALS
1959	help
1960	  Select this option if you want to build a 32-bit kernel.
1961config 64BIT
1962	bool "64-bit kernel"
1963	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1964	help
1965	  Select this option if you want to build a 64-bit kernel.
1966
1967endchoice
1968
1969config KVM_GUEST
1970	bool "KVM Guest Kernel"
1971	depends on BROKEN_ON_SMP
1972	help
1973	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1974
1975config KVM_GUEST_TIMER_FREQ
1976	int "Count/Compare Timer Frequency (MHz)"
1977	depends on KVM_GUEST
1978	default 100
1979	help
1980	  Set this to non-zero if building a guest kernel for KVM to skip RTC
1981	  emulation when determining guest CPU Frequency. Instead, the guest's
1982	  timer frequency is specified directly.
1983
1984choice
1985	prompt "Kernel page size"
1986	default PAGE_SIZE_4KB
1987
1988config PAGE_SIZE_4KB
1989	bool "4kB"
1990	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1991	help
1992	 This option select the standard 4kB Linux page size.  On some
1993	 R3000-family processors this is the only available page size.  Using
1994	 4kB page size will minimize memory consumption and is therefore
1995	 recommended for low memory systems.
1996
1997config PAGE_SIZE_8KB
1998	bool "8kB"
1999	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2000	help
2001	  Using 8kB page size will result in higher performance kernel at
2002	  the price of higher memory consumption.  This option is available
2003	  only on R8000 and cnMIPS processors.  Note that you will need a
2004	  suitable Linux distribution to support this.
2005
2006config PAGE_SIZE_16KB
2007	bool "16kB"
2008	depends on !CPU_R3000 && !CPU_TX39XX
2009	help
2010	  Using 16kB page size will result in higher performance kernel at
2011	  the price of higher memory consumption.  This option is available on
2012	  all non-R3000 family processors.  Note that you will need a suitable
2013	  Linux distribution to support this.
2014
2015config PAGE_SIZE_32KB
2016	bool "32kB"
2017	depends on CPU_CAVIUM_OCTEON
2018	help
2019	  Using 32kB page size will result in higher performance kernel at
2020	  the price of higher memory consumption.  This option is available
2021	  only on cnMIPS cores.  Note that you will need a suitable Linux
2022	  distribution to support this.
2023
2024config PAGE_SIZE_64KB
2025	bool "64kB"
2026	depends on !CPU_R3000 && !CPU_TX39XX
2027	help
2028	  Using 64kB page size will result in higher performance kernel at
2029	  the price of higher memory consumption.  This option is available on
2030	  all non-R3000 family processor.  Not that at the time of this
2031	  writing this option is still high experimental.
2032
2033endchoice
2034
2035config FORCE_MAX_ZONEORDER
2036	int "Maximum zone order"
2037	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2038	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2039	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2040	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2041	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2042	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2043	range 11 64
2044	default "11"
2045	help
2046	  The kernel memory allocator divides physically contiguous memory
2047	  blocks into "zones", where each zone is a power of two number of
2048	  pages.  This option selects the largest power of two that the kernel
2049	  keeps in the memory allocator.  If you need to allocate very large
2050	  blocks of physically contiguous memory, then you may need to
2051	  increase this value.
2052
2053	  This config option is actually maximum order plus one. For example,
2054	  a value of 11 means that the largest free memory block is 2^10 pages.
2055
2056	  The page size is not necessarily 4KB.  Keep this in mind
2057	  when choosing a value for this option.
2058
2059config BOARD_SCACHE
2060	bool
2061
2062config IP22_CPU_SCACHE
2063	bool
2064	select BOARD_SCACHE
2065
2066#
2067# Support for a MIPS32 / MIPS64 style S-caches
2068#
2069config MIPS_CPU_SCACHE
2070	bool
2071	select BOARD_SCACHE
2072
2073config R5000_CPU_SCACHE
2074	bool
2075	select BOARD_SCACHE
2076
2077config RM7000_CPU_SCACHE
2078	bool
2079	select BOARD_SCACHE
2080
2081config SIBYTE_DMA_PAGEOPS
2082	bool "Use DMA to clear/copy pages"
2083	depends on CPU_SB1
2084	help
2085	  Instead of using the CPU to zero and copy pages, use a Data Mover
2086	  channel.  These DMA channels are otherwise unused by the standard
2087	  SiByte Linux port.  Seems to give a small performance benefit.
2088
2089config CPU_HAS_PREFETCH
2090	bool
2091
2092config CPU_GENERIC_DUMP_TLB
2093	bool
2094	default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2095
2096config CPU_R4K_FPU
2097	bool
2098	default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2099
2100config CPU_R4K_CACHE_TLB
2101	bool
2102	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2103
2104config MIPS_MT_SMP
2105	bool "MIPS MT SMP support (1 TC on each available VPE)"
2106	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2107	select CPU_MIPSR2_IRQ_VI
2108	select CPU_MIPSR2_IRQ_EI
2109	select SYNC_R4K
2110	select MIPS_GIC_IPI if MIPS_GIC
2111	select MIPS_MT
2112	select SMP
2113	select SMP_UP
2114	select SYS_SUPPORTS_SMP
2115	select SYS_SUPPORTS_SCHED_SMT
2116	select MIPS_PERF_SHARED_TC_COUNTERS
2117	help
2118	  This is a kernel model which is known as SMVP. This is supported
2119	  on cores with the MT ASE and uses the available VPEs to implement
2120	  virtual processors which supports SMP. This is equivalent to the
2121	  Intel Hyperthreading feature. For further information go to
2122	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2123
2124config MIPS_MT
2125	bool
2126
2127config SCHED_SMT
2128	bool "SMT (multithreading) scheduler support"
2129	depends on SYS_SUPPORTS_SCHED_SMT
2130	default n
2131	help
2132	  SMT scheduler support improves the CPU scheduler's decision making
2133	  when dealing with MIPS MT enabled cores at a cost of slightly
2134	  increased overhead in some places. If unsure say N here.
2135
2136config SYS_SUPPORTS_SCHED_SMT
2137	bool
2138
2139config SYS_SUPPORTS_MULTITHREADING
2140	bool
2141
2142config MIPS_MT_FPAFF
2143	bool "Dynamic FPU affinity for FP-intensive threads"
2144	default y
2145	depends on MIPS_MT_SMP
2146
2147config MIPSR2_TO_R6_EMULATOR
2148	bool "MIPS R2-to-R6 emulator"
2149	depends on CPU_MIPSR6 && !SMP
2150	default y
2151	help
2152	  Choose this option if you want to run non-R6 MIPS userland code.
2153	  Even if you say 'Y' here, the emulator will still be disabled by
2154	  default. You can enable it using the 'mipsr2emu' kernel option.
2155	  The only reason this is a build-time option is to save ~14K from the
2156	  final kernel image.
2157comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2158	depends on SMP && CPU_MIPSR6
2159
2160config MIPS_VPE_LOADER
2161	bool "VPE loader support."
2162	depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2163	select CPU_MIPSR2_IRQ_VI
2164	select CPU_MIPSR2_IRQ_EI
2165	select MIPS_MT
2166	help
2167	  Includes a loader for loading an elf relocatable object
2168	  onto another VPE and running it.
2169
2170config MIPS_VPE_LOADER_CMP
2171	bool
2172	default "y"
2173	depends on MIPS_VPE_LOADER && MIPS_CMP
2174
2175config MIPS_VPE_LOADER_MT
2176	bool
2177	default "y"
2178	depends on MIPS_VPE_LOADER && !MIPS_CMP
2179
2180config MIPS_VPE_LOADER_TOM
2181	bool "Load VPE program into memory hidden from linux"
2182	depends on MIPS_VPE_LOADER
2183	default y
2184	help
2185	  The loader can use memory that is present but has been hidden from
2186	  Linux using the kernel command line option "mem=xxMB". It's up to
2187	  you to ensure the amount you put in the option and the space your
2188	  program requires is less or equal to the amount physically present.
2189
2190config MIPS_VPE_APSP_API
2191	bool "Enable support for AP/SP API (RTLX)"
2192	depends on MIPS_VPE_LOADER
2193	help
2194
2195config MIPS_VPE_APSP_API_CMP
2196	bool
2197	default "y"
2198	depends on MIPS_VPE_APSP_API && MIPS_CMP
2199
2200config MIPS_VPE_APSP_API_MT
2201	bool
2202	default "y"
2203	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2204
2205config MIPS_CMP
2206	bool "MIPS CMP framework support (DEPRECATED)"
2207	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2208	select MIPS_GIC_IPI if MIPS_GIC
2209	select SMP
2210	select SYNC_R4K
2211	select SYS_SUPPORTS_SMP
2212	select WEAK_ORDERING
2213	default n
2214	help
2215	  Select this if you are using a bootloader which implements the "CMP
2216	  framework" protocol (ie. YAMON) and want your kernel to make use of
2217	  its ability to start secondary CPUs.
2218
2219	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2220	  instead of this.
2221
2222config MIPS_CPS
2223	bool "MIPS Coherent Processing System support"
2224	depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2225	select MIPS_CM
2226	select MIPS_CPC
2227	select MIPS_CPS_PM if HOTPLUG_CPU
2228	select MIPS_GIC_IPI if MIPS_GIC
2229	select SMP
2230	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2231	select SYS_SUPPORTS_HOTPLUG_CPU
2232	select SYS_SUPPORTS_SMP
2233	select WEAK_ORDERING
2234	help
2235	  Select this if you wish to run an SMP kernel across multiple cores
2236	  within a MIPS Coherent Processing System. When this option is
2237	  enabled the kernel will probe for other cores and boot them with
2238	  no external assistance. It is safe to enable this when hardware
2239	  support is unavailable.
2240
2241config MIPS_CPS_PM
2242	depends on MIPS_CPS
2243	select MIPS_CPC
2244	bool
2245
2246config MIPS_GIC_IPI
2247	depends on MIPS_GIC
2248	bool
2249
2250config MIPS_CM
2251	bool
2252
2253config MIPS_CPC
2254	bool
2255
2256config SB1_PASS_1_WORKAROUNDS
2257	bool
2258	depends on CPU_SB1_PASS_1
2259	default y
2260
2261config SB1_PASS_2_WORKAROUNDS
2262	bool
2263	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2264	default y
2265
2266config SB1_PASS_2_1_WORKAROUNDS
2267	bool
2268	depends on CPU_SB1 && CPU_SB1_PASS_2
2269	default y
2270
2271
2272config ARCH_PHYS_ADDR_T_64BIT
2273       bool
2274
2275choice
2276	prompt "SmartMIPS or microMIPS ASE support"
2277
2278config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2279	bool "None"
2280	help
2281	  Select this if you want neither microMIPS nor SmartMIPS support
2282
2283config CPU_HAS_SMARTMIPS
2284	depends on SYS_SUPPORTS_SMARTMIPS
2285	bool "SmartMIPS"
2286	help
2287	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2288	  increased security at both hardware and software level for
2289	  smartcards.  Enabling this option will allow proper use of the
2290	  SmartMIPS instructions by Linux applications.  However a kernel with
2291	  this option will not work on a MIPS core without SmartMIPS core.  If
2292	  you don't know you probably don't have SmartMIPS and should say N
2293	  here.
2294
2295config CPU_MICROMIPS
2296	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2297	bool "microMIPS"
2298	help
2299	  When this option is enabled the kernel will be built using the
2300	  microMIPS ISA
2301
2302endchoice
2303
2304config CPU_HAS_MSA
2305	bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2306	depends on CPU_SUPPORTS_MSA
2307	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2308	help
2309	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2310	  and a set of SIMD instructions to operate on them. When this option
2311	  is enabled the kernel will support allocating & switching MSA
2312	  vector register contexts. If you know that your kernel will only be
2313	  running on CPUs which do not support MSA or that your userland will
2314	  not be making use of it then you may wish to say N here to reduce
2315	  the size & complexity of your kernel.
2316
2317	  If unsure, say Y.
2318
2319config CPU_HAS_WB
2320	bool
2321
2322config XKS01
2323	bool
2324
2325#
2326# Vectored interrupt mode is an R2 feature
2327#
2328config CPU_MIPSR2_IRQ_VI
2329	bool
2330
2331#
2332# Extended interrupt mode is an R2 feature
2333#
2334config CPU_MIPSR2_IRQ_EI
2335	bool
2336
2337config CPU_HAS_SYNC
2338	bool
2339	depends on !CPU_R3000
2340	default y
2341
2342#
2343# CPU non-features
2344#
2345config CPU_DADDI_WORKAROUNDS
2346	bool
2347
2348config CPU_R4000_WORKAROUNDS
2349	bool
2350	select CPU_R4400_WORKAROUNDS
2351
2352config CPU_R4400_WORKAROUNDS
2353	bool
2354
2355#
2356# - Highmem only makes sense for the 32-bit kernel.
2357# - The current highmem code will only work properly on physically indexed
2358#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2359#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2360#   moment we protect the user and offer the highmem option only on machines
2361#   where it's known to be safe.  This will not offer highmem on a few systems
2362#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2363#   indexed CPUs but we're playing safe.
2364# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2365#   know they might have memory configurations that could make use of highmem
2366#   support.
2367#
2368config HIGHMEM
2369	bool "High Memory Support"
2370	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2371
2372config CPU_SUPPORTS_HIGHMEM
2373	bool
2374
2375config SYS_SUPPORTS_HIGHMEM
2376	bool
2377
2378config SYS_SUPPORTS_SMARTMIPS
2379	bool
2380
2381config SYS_SUPPORTS_MICROMIPS
2382	bool
2383
2384config SYS_SUPPORTS_MIPS16
2385	bool
2386	help
2387	  This option must be set if a kernel might be executed on a MIPS16-
2388	  enabled CPU even if MIPS16 is not actually being used.  In other
2389	  words, it makes the kernel MIPS16-tolerant.
2390
2391config CPU_SUPPORTS_MSA
2392	bool
2393
2394config ARCH_FLATMEM_ENABLE
2395	def_bool y
2396	depends on !NUMA && !CPU_LOONGSON2
2397
2398config ARCH_DISCONTIGMEM_ENABLE
2399	bool
2400	default y if SGI_IP27
2401	help
2402	  Say Y to support efficient handling of discontiguous physical memory,
2403	  for architectures which are either NUMA (Non-Uniform Memory Access)
2404	  or have huge holes in the physical address space for other reasons.
2405	  See <file:Documentation/vm/numa> for more.
2406
2407config ARCH_SPARSEMEM_ENABLE
2408	bool
2409	select SPARSEMEM_STATIC
2410
2411config NUMA
2412	bool "NUMA Support"
2413	depends on SYS_SUPPORTS_NUMA
2414	help
2415	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2416	  Access).  This option improves performance on systems with more
2417	  than two nodes; on two node systems it is generally better to
2418	  leave it disabled; on single node systems disable this option
2419	  disabled.
2420
2421config SYS_SUPPORTS_NUMA
2422	bool
2423
2424config NODES_SHIFT
2425	int
2426	default "6"
2427	depends on NEED_MULTIPLE_NODES
2428
2429config HW_PERF_EVENTS
2430	bool "Enable hardware performance counter support for perf events"
2431	depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2432	default y
2433	help
2434	  Enable hardware performance counter support for perf events. If
2435	  disabled, perf events will use software events only.
2436
2437source "mm/Kconfig"
2438
2439config SMP
2440	bool "Multi-Processing support"
2441	depends on SYS_SUPPORTS_SMP
2442	help
2443	  This enables support for systems with more than one CPU. If you have
2444	  a system with only one CPU, say N. If you have a system with more
2445	  than one CPU, say Y.
2446
2447	  If you say N here, the kernel will run on uni- and multiprocessor
2448	  machines, but will use only one CPU of a multiprocessor machine. If
2449	  you say Y here, the kernel will run on many, but not all,
2450	  uniprocessor machines. On a uniprocessor machine, the kernel
2451	  will run faster if you say N here.
2452
2453	  People using multiprocessor machines who say Y here should also say
2454	  Y to "Enhanced Real Time Clock Support", below.
2455
2456	  See also the SMP-HOWTO available at
2457	  <http://www.tldp.org/docs.html#howto>.
2458
2459	  If you don't know what to do here, say N.
2460
2461config SMP_UP
2462	bool
2463
2464config SYS_SUPPORTS_MIPS_CMP
2465	bool
2466
2467config SYS_SUPPORTS_MIPS_CPS
2468	bool
2469
2470config SYS_SUPPORTS_SMP
2471	bool
2472
2473config NR_CPUS_DEFAULT_4
2474	bool
2475
2476config NR_CPUS_DEFAULT_8
2477	bool
2478
2479config NR_CPUS_DEFAULT_16
2480	bool
2481
2482config NR_CPUS_DEFAULT_32
2483	bool
2484
2485config NR_CPUS_DEFAULT_64
2486	bool
2487
2488config NR_CPUS
2489	int "Maximum number of CPUs (2-256)"
2490	range 2 256
2491	depends on SMP
2492	default "4" if NR_CPUS_DEFAULT_4
2493	default "8" if NR_CPUS_DEFAULT_8
2494	default "16" if NR_CPUS_DEFAULT_16
2495	default "32" if NR_CPUS_DEFAULT_32
2496	default "64" if NR_CPUS_DEFAULT_64
2497	help
2498	  This allows you to specify the maximum number of CPUs which this
2499	  kernel will support.  The maximum supported value is 32 for 32-bit
2500	  kernel and 64 for 64-bit kernels; the minimum value which makes
2501	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2502	  and 2 for all others.
2503
2504	  This is purely to save memory - each supported CPU adds
2505	  approximately eight kilobytes to the kernel image.  For best
2506	  performance should round up your number of processors to the next
2507	  power of two.
2508
2509config MIPS_PERF_SHARED_TC_COUNTERS
2510	bool
2511
2512#
2513# Timer Interrupt Frequency Configuration
2514#
2515
2516choice
2517	prompt "Timer frequency"
2518	default HZ_250
2519	help
2520	 Allows the configuration of the timer frequency.
2521
2522	config HZ_48
2523		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2524
2525	config HZ_100
2526		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2527
2528	config HZ_128
2529		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2530
2531	config HZ_250
2532		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2533
2534	config HZ_256
2535		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2536
2537	config HZ_1000
2538		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2539
2540	config HZ_1024
2541		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2542
2543endchoice
2544
2545config SYS_SUPPORTS_48HZ
2546	bool
2547
2548config SYS_SUPPORTS_100HZ
2549	bool
2550
2551config SYS_SUPPORTS_128HZ
2552	bool
2553
2554config SYS_SUPPORTS_250HZ
2555	bool
2556
2557config SYS_SUPPORTS_256HZ
2558	bool
2559
2560config SYS_SUPPORTS_1000HZ
2561	bool
2562
2563config SYS_SUPPORTS_1024HZ
2564	bool
2565
2566config SYS_SUPPORTS_ARBIT_HZ
2567	bool
2568	default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2569		     !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2570		     !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2571		     !SYS_SUPPORTS_1024HZ
2572
2573config HZ
2574	int
2575	default 48 if HZ_48
2576	default 100 if HZ_100
2577	default 128 if HZ_128
2578	default 250 if HZ_250
2579	default 256 if HZ_256
2580	default 1000 if HZ_1000
2581	default 1024 if HZ_1024
2582
2583config SCHED_HRTICK
2584	def_bool HIGH_RES_TIMERS
2585
2586source "kernel/Kconfig.preempt"
2587
2588config KEXEC
2589	bool "Kexec system call"
2590	help
2591	  kexec is a system call that implements the ability to shutdown your
2592	  current kernel, and to start another kernel.  It is like a reboot
2593	  but it is independent of the system firmware.   And like a reboot
2594	  you can start any kernel with it, not just Linux.
2595
2596	  The name comes from the similarity to the exec system call.
2597
2598	  It is an ongoing process to be certain the hardware in a machine
2599	  is properly shutdown, so do not be surprised if this code does not
2600	  initially work for you.  As of this writing the exact hardware
2601	  interface is strongly in flux, so no good recommendation can be
2602	  made.
2603
2604config CRASH_DUMP
2605	  bool "Kernel crash dumps"
2606	  help
2607	  Generate crash dump after being started by kexec.
2608	  This should be normally only set in special crash dump kernels
2609	  which are loaded in the main kernel with kexec-tools into
2610	  a specially reserved region and then later executed after
2611	  a crash by kdump/kexec. The crash dump kernel must be compiled
2612	  to a memory address not used by the main kernel or firmware using
2613	  PHYSICAL_START.
2614
2615config PHYSICAL_START
2616	  hex "Physical address where the kernel is loaded"
2617	  default "0xffffffff84000000" if 64BIT
2618	  default "0x84000000" if 32BIT
2619	  depends on CRASH_DUMP
2620	  help
2621	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2622	  If you plan to use kernel for capturing the crash dump change
2623	  this value to start of the reserved region (the "X" value as
2624	  specified in the "crashkernel=YM@XM" command line boot parameter
2625	  passed to the panic-ed kernel).
2626
2627config SECCOMP
2628	bool "Enable seccomp to safely compute untrusted bytecode"
2629	depends on PROC_FS
2630	default y
2631	help
2632	  This kernel feature is useful for number crunching applications
2633	  that may need to compute untrusted bytecode during their
2634	  execution. By using pipes or other transports made available to
2635	  the process as file descriptors supporting the read/write
2636	  syscalls, it's possible to isolate those applications in
2637	  their own address space using seccomp. Once seccomp is
2638	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2639	  and the task is only allowed to execute a few safe syscalls
2640	  defined by each seccomp mode.
2641
2642	  If unsure, say Y. Only embedded should say N here.
2643
2644config MIPS_O32_FP64_SUPPORT
2645	bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2646	depends on 32BIT || MIPS32_O32
2647	help
2648	  When this is enabled, the kernel will support use of 64-bit floating
2649	  point registers with binaries using the O32 ABI along with the
2650	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2651	  32-bit MIPS systems this support is at the cost of increasing the
2652	  size and complexity of the compiled FPU emulator. Thus if you are
2653	  running a MIPS32 system and know that none of your userland binaries
2654	  will require 64-bit floating point, you may wish to reduce the size
2655	  of your kernel & potentially improve FP emulation performance by
2656	  saying N here.
2657
2658	  Although binutils currently supports use of this flag the details
2659	  concerning its effect upon the O32 ABI in userland are still being
2660	  worked on. In order to avoid userland becoming dependant upon current
2661	  behaviour before the details have been finalised, this option should
2662	  be considered experimental and only enabled by those working upon
2663	  said details.
2664
2665	  If unsure, say N.
2666
2667config USE_OF
2668	bool
2669	select OF
2670	select OF_EARLY_FLATTREE
2671	select IRQ_DOMAIN
2672
2673config BUILTIN_DTB
2674	bool
2675
2676endmenu
2677
2678config LOCKDEP_SUPPORT
2679	bool
2680	default y
2681
2682config STACKTRACE_SUPPORT
2683	bool
2684	default y
2685
2686config PGTABLE_LEVELS
2687	int
2688	default 3 if 64BIT && !PAGE_SIZE_64KB
2689	default 2
2690
2691source "init/Kconfig"
2692
2693source "kernel/Kconfig.freezer"
2694
2695menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2696
2697config HW_HAS_EISA
2698	bool
2699config HW_HAS_PCI
2700	bool
2701
2702config PCI
2703	bool "Support for PCI controller"
2704	depends on HW_HAS_PCI
2705	select PCI_DOMAINS
2706	select NO_GENERIC_PCI_IOPORT_MAP
2707	help
2708	  Find out whether you have a PCI motherboard. PCI is the name of a
2709	  bus system, i.e. the way the CPU talks to the other stuff inside
2710	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2711	  say Y, otherwise N.
2712
2713config HT_PCI
2714	bool "Support for HT-linked PCI"
2715	default y
2716	depends on CPU_LOONGSON3
2717	select PCI
2718	select PCI_DOMAINS
2719	help
2720	  Loongson family machines use Hyper-Transport bus for inter-core
2721	  connection and device connection. The PCI bus is a subordinate
2722	  linked at HT. Choose Y for Loongson-3 based machines.
2723
2724config PCI_DOMAINS
2725	bool
2726
2727source "drivers/pci/Kconfig"
2728
2729source "drivers/pci/pcie/Kconfig"
2730
2731#
2732# ISA support is now enabled via select.  Too many systems still have the one
2733# or other ISA chip on the board that users don't know about so don't expect
2734# users to choose the right thing ...
2735#
2736config ISA
2737	bool
2738
2739config EISA
2740	bool "EISA support"
2741	depends on HW_HAS_EISA
2742	select ISA
2743	select GENERIC_ISA_DMA
2744	---help---
2745	  The Extended Industry Standard Architecture (EISA) bus was
2746	  developed as an open alternative to the IBM MicroChannel bus.
2747
2748	  The EISA bus provided some of the features of the IBM MicroChannel
2749	  bus while maintaining backward compatibility with cards made for
2750	  the older ISA bus.  The EISA bus saw limited use between 1988 and
2751	  1995 when it was made obsolete by the PCI bus.
2752
2753	  Say Y here if you are building a kernel for an EISA-based machine.
2754
2755	  Otherwise, say N.
2756
2757source "drivers/eisa/Kconfig"
2758
2759config TC
2760	bool "TURBOchannel support"
2761	depends on MACH_DECSTATION
2762	help
2763	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2764	  processors.  TURBOchannel programming specifications are available
2765	  at:
2766	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2767	  and:
2768	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2769	  Linux driver support status is documented at:
2770	  <http://www.linux-mips.org/wiki/DECstation>
2771
2772config MMU
2773	bool
2774	default y
2775
2776config I8253
2777	bool
2778	select CLKSRC_I8253
2779	select CLKEVT_I8253
2780	select MIPS_EXTERNAL_TIMER
2781
2782config ZONE_DMA
2783	bool
2784
2785config ZONE_DMA32
2786	bool
2787
2788source "drivers/pcmcia/Kconfig"
2789
2790source "drivers/pci/hotplug/Kconfig"
2791
2792config RAPIDIO
2793	tristate "RapidIO support"
2794	depends on PCI
2795	default n
2796	help
2797	  If you say Y here, the kernel will include drivers and
2798	  infrastructure code to support RapidIO interconnect devices.
2799
2800source "drivers/rapidio/Kconfig"
2801
2802endmenu
2803
2804menu "Executable file formats"
2805
2806source "fs/Kconfig.binfmt"
2807
2808config TRAD_SIGNALS
2809	bool
2810
2811config MIPS32_COMPAT
2812	bool
2813
2814config COMPAT
2815	bool
2816
2817config SYSVIPC_COMPAT
2818	bool
2819
2820config MIPS32_O32
2821	bool "Kernel support for o32 binaries"
2822	depends on 64BIT
2823	select ARCH_WANT_OLD_COMPAT_IPC
2824	select COMPAT
2825	select MIPS32_COMPAT
2826	select SYSVIPC_COMPAT if SYSVIPC
2827	help
2828	  Select this option if you want to run o32 binaries.  These are pure
2829	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2830	  existing binaries are in this format.
2831
2832	  If unsure, say Y.
2833
2834config MIPS32_N32
2835	bool "Kernel support for n32 binaries"
2836	depends on 64BIT
2837	select COMPAT
2838	select MIPS32_COMPAT
2839	select SYSVIPC_COMPAT if SYSVIPC
2840	help
2841	  Select this option if you want to run n32 binaries.  These are
2842	  64-bit binaries using 32-bit quantities for addressing and certain
2843	  data that would normally be 64-bit.  They are used in special
2844	  cases.
2845
2846	  If unsure, say N.
2847
2848config BINFMT_ELF32
2849	bool
2850	default y if MIPS32_O32 || MIPS32_N32
2851
2852endmenu
2853
2854menu "Power management options"
2855
2856config ARCH_HIBERNATION_POSSIBLE
2857	def_bool y
2858	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2859
2860config ARCH_SUSPEND_POSSIBLE
2861	def_bool y
2862	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2863
2864source "kernel/power/Kconfig"
2865
2866endmenu
2867
2868config MIPS_EXTERNAL_TIMER
2869	bool
2870
2871menu "CPU Power Management"
2872
2873if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2874source "drivers/cpufreq/Kconfig"
2875endif
2876
2877source "drivers/cpuidle/Kconfig"
2878
2879endmenu
2880
2881source "net/Kconfig"
2882
2883source "drivers/Kconfig"
2884
2885source "drivers/firmware/Kconfig"
2886
2887source "fs/Kconfig"
2888
2889source "arch/mips/Kconfig.debug"
2890
2891source "security/Kconfig"
2892
2893source "crypto/Kconfig"
2894
2895source "lib/Kconfig"
2896
2897source "arch/mips/kvm/Kconfig"
2898