xref: /openbmc/linux/arch/mips/Kconfig (revision ee8a99bd)
1config MIPS
2	bool
3	default y
4	select HAVE_CONTEXT_TRACKING
5	select HAVE_GENERIC_DMA_COHERENT
6	select HAVE_IDE
7	select HAVE_OPROFILE
8	select HAVE_PERF_EVENTS
9	select PERF_USE_VMALLOC
10	select HAVE_ARCH_KGDB
11	select ARCH_HAVE_CUSTOM_GPIO_H
12	select HAVE_FUNCTION_TRACER
13	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14	select HAVE_DYNAMIC_FTRACE
15	select HAVE_FTRACE_MCOUNT_RECORD
16	select HAVE_C_RECORDMCOUNT
17	select HAVE_FUNCTION_GRAPH_TRACER
18	select HAVE_KPROBES
19	select HAVE_KRETPROBES
20	select HAVE_DEBUG_KMEMLEAK
21	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
22	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
23	select RTC_LIB if !MACH_LOONGSON
24	select GENERIC_ATOMIC64 if !64BIT
25	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26	select HAVE_DMA_ATTRS
27	select HAVE_DMA_API_DEBUG
28	select HAVE_GENERIC_HARDIRQS
29	select GENERIC_IRQ_PROBE
30	select GENERIC_IRQ_SHOW
31	select GENERIC_PCI_IOMAP
32	select HAVE_ARCH_JUMP_LABEL
33	select ARCH_WANT_IPC_PARSE_VERSION
34	select IRQ_FORCED_THREADING
35	select HAVE_MEMBLOCK
36	select HAVE_MEMBLOCK_NODE_MAP
37	select ARCH_DISCARD_MEMBLOCK
38	select GENERIC_SMP_IDLE_THREAD
39	select BUILDTIME_EXTABLE_SORT
40	select GENERIC_CLOCKEVENTS
41	select GENERIC_CMOS_UPDATE
42	select HAVE_MOD_ARCH_SPECIFIC
43	select VIRT_TO_BUS
44	select MODULES_USE_ELF_REL if MODULES
45	select MODULES_USE_ELF_RELA if MODULES && 64BIT
46	select CLONE_BACKWARDS
47	select HAVE_DEBUG_STACKOVERFLOW
48
49menu "Machine selection"
50
51choice
52	prompt "System type"
53	default SGI_IP22
54
55config MIPS_ALCHEMY
56	bool "Alchemy processor based machines"
57	select 64BIT_PHYS_ADDR
58	select CEVT_R4K
59	select CSRC_R4K
60	select IRQ_CPU
61	select SYS_HAS_CPU_MIPS32_R1
62	select SYS_SUPPORTS_32BIT_KERNEL
63	select SYS_SUPPORTS_APM_EMULATION
64	select ARCH_REQUIRE_GPIOLIB
65	select SYS_SUPPORTS_ZBOOT
66	select USB_ARCH_HAS_OHCI
67	select USB_ARCH_HAS_EHCI
68
69config AR7
70	bool "Texas Instruments AR7"
71	select BOOT_ELF32
72	select DMA_NONCOHERENT
73	select CEVT_R4K
74	select CSRC_R4K
75	select IRQ_CPU
76	select NO_EXCEPT_FILL
77	select SWAP_IO_SPACE
78	select SYS_HAS_CPU_MIPS32_R1
79	select SYS_HAS_EARLY_PRINTK
80	select SYS_SUPPORTS_32BIT_KERNEL
81	select SYS_SUPPORTS_LITTLE_ENDIAN
82	select SYS_SUPPORTS_ZBOOT_UART16550
83	select ARCH_REQUIRE_GPIOLIB
84	select VLYNQ
85	select HAVE_CLK
86	help
87	  Support for the Texas Instruments AR7 System-on-a-Chip
88	  family: TNETD7100, 7200 and 7300.
89
90config ATH79
91	bool "Atheros AR71XX/AR724X/AR913X based boards"
92	select ARCH_REQUIRE_GPIOLIB
93	select BOOT_RAW
94	select CEVT_R4K
95	select CSRC_R4K
96	select DMA_NONCOHERENT
97	select HAVE_CLK
98	select IRQ_CPU
99	select MIPS_MACHINE
100	select SYS_HAS_CPU_MIPS32_R2
101	select SYS_HAS_EARLY_PRINTK
102	select SYS_SUPPORTS_32BIT_KERNEL
103	select SYS_SUPPORTS_BIG_ENDIAN
104	help
105	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
106
107config BCM47XX
108	bool "Broadcom BCM47XX based boards"
109	select ARCH_WANT_OPTIONAL_GPIOLIB
110	select BOOT_RAW
111	select CEVT_R4K
112	select CSRC_R4K
113	select DMA_NONCOHERENT
114	select FW_CFE
115	select HW_HAS_PCI
116	select IRQ_CPU
117	select SYS_HAS_CPU_MIPS32_R1
118	select NO_EXCEPT_FILL
119	select SYS_SUPPORTS_32BIT_KERNEL
120	select SYS_SUPPORTS_LITTLE_ENDIAN
121	select SYS_HAS_EARLY_PRINTK
122	help
123	 Support for BCM47XX based boards
124
125config BCM63XX
126	bool "Broadcom BCM63XX based boards"
127	select BOOT_RAW
128	select CEVT_R4K
129	select CSRC_R4K
130	select DMA_NONCOHERENT
131	select IRQ_CPU
132	select SYS_HAS_CPU_MIPS32_R1
133	select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348
134	select NR_CPUS_DEFAULT_2
135	select SYS_SUPPORTS_32BIT_KERNEL
136	select SYS_SUPPORTS_BIG_ENDIAN
137	select SYS_HAS_EARLY_PRINTK
138	select SWAP_IO_SPACE
139	select ARCH_REQUIRE_GPIOLIB
140	select HAVE_CLK
141	help
142	 Support for BCM63XX based boards
143
144config MIPS_COBALT
145	bool "Cobalt Server"
146	select CEVT_R4K
147	select CSRC_R4K
148	select CEVT_GT641XX
149	select DMA_NONCOHERENT
150	select HW_HAS_PCI
151	select I8253
152	select I8259
153	select IRQ_CPU
154	select IRQ_GT641XX
155	select PCI_GT64XXX_PCI0
156	select PCI
157	select SYS_HAS_CPU_NEVADA
158	select SYS_HAS_EARLY_PRINTK
159	select SYS_SUPPORTS_32BIT_KERNEL
160	select SYS_SUPPORTS_64BIT_KERNEL
161	select SYS_SUPPORTS_LITTLE_ENDIAN
162
163config MACH_DECSTATION
164	bool "DECstations"
165	select BOOT_ELF32
166	select CEVT_DS1287
167	select CEVT_R4K
168	select CSRC_IOASIC
169	select CSRC_R4K
170	select CPU_DADDI_WORKAROUNDS if 64BIT
171	select CPU_R4000_WORKAROUNDS if 64BIT
172	select CPU_R4400_WORKAROUNDS if 64BIT
173	select DMA_NONCOHERENT
174	select NO_IOPORT
175	select IRQ_CPU
176	select SYS_HAS_CPU_R3000
177	select SYS_HAS_CPU_R4X00
178	select SYS_SUPPORTS_32BIT_KERNEL
179	select SYS_SUPPORTS_64BIT_KERNEL
180	select SYS_SUPPORTS_LITTLE_ENDIAN
181	select SYS_SUPPORTS_128HZ
182	select SYS_SUPPORTS_256HZ
183	select SYS_SUPPORTS_1024HZ
184	help
185	  This enables support for DEC's MIPS based workstations.  For details
186	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
187	  DECstation porting pages on <http://decstation.unix-ag.org/>.
188
189	  If you have one of the following DECstation Models you definitely
190	  want to choose R4xx0 for the CPU Type:
191
192		DECstation 5000/50
193		DECstation 5000/150
194		DECstation 5000/260
195		DECsystem 5900/260
196
197	  otherwise choose R3000.
198
199config MACH_JAZZ
200	bool "Jazz family of machines"
201	select FW_ARC
202	select FW_ARC32
203	select ARCH_MAY_HAVE_PC_FDC
204	select CEVT_R4K
205	select CSRC_R4K
206	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
207	select GENERIC_ISA_DMA
208	select HAVE_PCSPKR_PLATFORM
209	select IRQ_CPU
210	select I8253
211	select I8259
212	select ISA
213	select SYS_HAS_CPU_R4X00
214	select SYS_SUPPORTS_32BIT_KERNEL
215	select SYS_SUPPORTS_64BIT_KERNEL
216	select SYS_SUPPORTS_100HZ
217	help
218	 This a family of machines based on the MIPS R4030 chipset which was
219	 used by several vendors to build RISC/os and Windows NT workstations.
220	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
221	 Olivetti M700-10 workstations.
222
223config MACH_JZ4740
224	bool "Ingenic JZ4740 based machines"
225	select SYS_HAS_CPU_MIPS32_R1
226	select SYS_SUPPORTS_32BIT_KERNEL
227	select SYS_SUPPORTS_LITTLE_ENDIAN
228	select SYS_SUPPORTS_ZBOOT_UART16550
229	select DMA_NONCOHERENT
230	select IRQ_CPU
231	select ARCH_REQUIRE_GPIOLIB
232	select SYS_HAS_EARLY_PRINTK
233	select HAVE_PWM
234	select HAVE_CLK
235	select GENERIC_IRQ_CHIP
236
237config LANTIQ
238	bool "Lantiq based platforms"
239	select DMA_NONCOHERENT
240	select IRQ_CPU
241	select CEVT_R4K
242	select CSRC_R4K
243	select SYS_HAS_CPU_MIPS32_R1
244	select SYS_HAS_CPU_MIPS32_R2
245	select SYS_SUPPORTS_BIG_ENDIAN
246	select SYS_SUPPORTS_32BIT_KERNEL
247	select SYS_SUPPORTS_MULTITHREADING
248	select SYS_HAS_EARLY_PRINTK
249	select ARCH_REQUIRE_GPIOLIB
250	select SWAP_IO_SPACE
251	select BOOT_RAW
252	select HAVE_MACH_CLKDEV
253	select CLKDEV_LOOKUP
254	select USE_OF
255	select PINCTRL
256	select PINCTRL_LANTIQ
257
258config LASAT
259	bool "LASAT Networks platforms"
260	select CEVT_R4K
261	select CSRC_R4K
262	select DMA_NONCOHERENT
263	select SYS_HAS_EARLY_PRINTK
264	select HW_HAS_PCI
265	select IRQ_CPU
266	select PCI_GT64XXX_PCI0
267	select MIPS_NILE4
268	select R5000_CPU_SCACHE
269	select SYS_HAS_CPU_R5000
270	select SYS_SUPPORTS_32BIT_KERNEL
271	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
272	select SYS_SUPPORTS_LITTLE_ENDIAN
273
274config MACH_LOONGSON
275	bool "Loongson family of machines"
276	select SYS_SUPPORTS_ZBOOT
277	help
278	  This enables the support of Loongson family of machines.
279
280	  Loongson is a family of general-purpose MIPS-compatible CPUs.
281	  developed at Institute of Computing Technology (ICT),
282	  Chinese Academy of Sciences (CAS) in the People's Republic
283	  of China. The chief architect is Professor Weiwu Hu.
284
285config MACH_LOONGSON1
286	bool "Loongson 1 family of machines"
287	select SYS_SUPPORTS_ZBOOT
288	help
289	  This enables support for the Loongson 1 based machines.
290
291	  Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
292	  the ICT (Institute of Computing Technology) and the Chinese Academy
293	  of Sciences.
294
295config MIPS_MALTA
296	bool "MIPS Malta board"
297	select ARCH_MAY_HAVE_PC_FDC
298	select BOOT_ELF32
299	select BOOT_RAW
300	select CEVT_R4K
301	select CSRC_R4K
302	select CSRC_GIC
303	select DMA_NONCOHERENT
304	select GENERIC_ISA_DMA
305	select HAVE_PCSPKR_PLATFORM
306	select IRQ_CPU
307	select IRQ_GIC
308	select HW_HAS_PCI
309	select I8253
310	select I8259
311	select MIPS_BONITO64
312	select MIPS_CPU_SCACHE
313	select PCI_GT64XXX_PCI0
314	select MIPS_MSC
315	select SWAP_IO_SPACE
316	select SYS_HAS_CPU_MIPS32_R1
317	select SYS_HAS_CPU_MIPS32_R2
318	select SYS_HAS_CPU_MIPS64_R1
319	select SYS_HAS_CPU_MIPS64_R2
320	select SYS_HAS_CPU_NEVADA
321	select SYS_HAS_CPU_RM7000
322	select SYS_HAS_EARLY_PRINTK
323	select SYS_SUPPORTS_32BIT_KERNEL
324	select SYS_SUPPORTS_64BIT_KERNEL
325	select SYS_SUPPORTS_BIG_ENDIAN
326	select SYS_SUPPORTS_LITTLE_ENDIAN
327	select SYS_SUPPORTS_MIPS_CMP
328	select SYS_SUPPORTS_MULTITHREADING
329	select SYS_SUPPORTS_SMARTMIPS
330	select SYS_SUPPORTS_ZBOOT
331	help
332	  This enables support for the MIPS Technologies Malta evaluation
333	  board.
334
335config MIPS_SEAD3
336	bool "MIPS SEAD3 board"
337	select BOOT_ELF32
338	select BOOT_RAW
339	select CEVT_R4K
340	select CSRC_R4K
341	select CSRC_GIC
342	select CPU_MIPSR2_IRQ_VI
343	select CPU_MIPSR2_IRQ_EI
344	select DMA_NONCOHERENT
345	select IRQ_CPU
346	select IRQ_GIC
347	select MIPS_MSC
348	select SYS_HAS_CPU_MIPS32_R1
349	select SYS_HAS_CPU_MIPS32_R2
350	select SYS_HAS_CPU_MIPS64_R1
351	select SYS_HAS_EARLY_PRINTK
352	select SYS_SUPPORTS_32BIT_KERNEL
353	select SYS_SUPPORTS_64BIT_KERNEL
354	select SYS_SUPPORTS_BIG_ENDIAN
355	select SYS_SUPPORTS_LITTLE_ENDIAN
356	select SYS_SUPPORTS_SMARTMIPS
357	select SYS_SUPPORTS_MICROMIPS
358	select USB_ARCH_HAS_EHCI
359	select USB_EHCI_BIG_ENDIAN_DESC
360	select USB_EHCI_BIG_ENDIAN_MMIO
361	select USE_OF
362	help
363	  This enables support for the MIPS Technologies SEAD3 evaluation
364	  board.
365
366config NEC_MARKEINS
367	bool "NEC EMMA2RH Mark-eins board"
368	select SOC_EMMA2RH
369	select HW_HAS_PCI
370	help
371	  This enables support for the NEC Electronics Mark-eins boards.
372
373config MACH_VR41XX
374	bool "NEC VR4100 series based machines"
375	select CEVT_R4K
376	select CSRC_R4K
377	select SYS_HAS_CPU_VR41XX
378	select ARCH_REQUIRE_GPIOLIB
379
380config NXP_STB220
381	bool "NXP STB220 board"
382	select SOC_PNX833X
383	help
384	 Support for NXP Semiconductors STB220 Development Board.
385
386config NXP_STB225
387	bool "NXP 225 board"
388	select SOC_PNX833X
389	select SOC_PNX8335
390	help
391	 Support for NXP Semiconductors STB225 Development Board.
392
393config PMC_MSP
394	bool "PMC-Sierra MSP chipsets"
395	select CEVT_R4K
396	select CSRC_R4K
397	select DMA_NONCOHERENT
398	select SWAP_IO_SPACE
399	select NO_EXCEPT_FILL
400	select BOOT_RAW
401	select SYS_HAS_CPU_MIPS32_R1
402	select SYS_HAS_CPU_MIPS32_R2
403	select SYS_SUPPORTS_32BIT_KERNEL
404	select SYS_SUPPORTS_BIG_ENDIAN
405	select IRQ_CPU
406	select SERIAL_8250
407	select SERIAL_8250_CONSOLE
408	select USB_EHCI_BIG_ENDIAN_MMIO
409	select USB_EHCI_BIG_ENDIAN_DESC
410	help
411	  This adds support for the PMC-Sierra family of Multi-Service
412	  Processor System-On-A-Chips.  These parts include a number
413	  of integrated peripherals, interfaces and DSPs in addition to
414	  a variety of MIPS cores.
415
416config POWERTV
417	bool "Cisco PowerTV"
418	select BOOT_ELF32
419	select CEVT_R4K
420	select CPU_MIPSR2_IRQ_VI
421	select CPU_MIPSR2_IRQ_EI
422	select CSRC_POWERTV
423	select DMA_NONCOHERENT
424	select HW_HAS_PCI
425	select SYS_HAS_CPU_MIPS32_R2
426	select SYS_SUPPORTS_32BIT_KERNEL
427	select SYS_SUPPORTS_BIG_ENDIAN
428	select SYS_SUPPORTS_HIGHMEM
429	select USB_OHCI_LITTLE_ENDIAN
430	help
431	  This enables support for the Cisco PowerTV Platform.
432
433config RALINK
434	bool "Ralink based machines"
435	select CEVT_R4K
436	select CSRC_R4K
437	select BOOT_RAW
438	select DMA_NONCOHERENT
439	select IRQ_CPU
440	select USE_OF
441	select SYS_HAS_CPU_MIPS32_R1
442	select SYS_HAS_CPU_MIPS32_R2
443	select SYS_SUPPORTS_32BIT_KERNEL
444	select SYS_SUPPORTS_LITTLE_ENDIAN
445	select SYS_HAS_EARLY_PRINTK
446	select HAVE_MACH_CLKDEV
447	select CLKDEV_LOOKUP
448
449config SGI_IP22
450	bool "SGI IP22 (Indy/Indigo2)"
451	select FW_ARC
452	select FW_ARC32
453	select BOOT_ELF32
454	select CEVT_R4K
455	select CSRC_R4K
456	select DEFAULT_SGI_PARTITION
457	select DMA_NONCOHERENT
458	select HW_HAS_EISA
459	select I8253
460	select I8259
461	select IP22_CPU_SCACHE
462	select IRQ_CPU
463	select GENERIC_ISA_DMA_SUPPORT_BROKEN
464	select SGI_HAS_I8042
465	select SGI_HAS_INDYDOG
466	select SGI_HAS_HAL2
467	select SGI_HAS_SEEQ
468	select SGI_HAS_WD93
469	select SGI_HAS_ZILOG
470	select SWAP_IO_SPACE
471	select SYS_HAS_CPU_R4X00
472	select SYS_HAS_CPU_R5000
473	#
474	# Disable EARLY_PRINTK for now since it leads to overwritten prom
475	# memory during early boot on some machines.
476	#
477	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
478	# for a more details discussion
479	#
480	# select SYS_HAS_EARLY_PRINTK
481	select SYS_SUPPORTS_32BIT_KERNEL
482	select SYS_SUPPORTS_64BIT_KERNEL
483	select SYS_SUPPORTS_BIG_ENDIAN
484	help
485	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
486	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
487	  that runs on these, say Y here.
488
489config SGI_IP27
490	bool "SGI IP27 (Origin200/2000)"
491	select FW_ARC
492	select FW_ARC64
493	select BOOT_ELF64
494	select DEFAULT_SGI_PARTITION
495	select DMA_COHERENT
496	select SYS_HAS_EARLY_PRINTK
497	select HW_HAS_PCI
498	select NR_CPUS_DEFAULT_64
499	select SYS_HAS_CPU_R10000
500	select SYS_SUPPORTS_64BIT_KERNEL
501	select SYS_SUPPORTS_BIG_ENDIAN
502	select SYS_SUPPORTS_NUMA
503	select SYS_SUPPORTS_SMP
504	help
505	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
506	  workstations.  To compile a Linux kernel that runs on these, say Y
507	  here.
508
509config SGI_IP28
510	bool "SGI IP28 (Indigo2 R10k)"
511	select FW_ARC
512	select FW_ARC64
513	select BOOT_ELF64
514	select CEVT_R4K
515	select CSRC_R4K
516	select DEFAULT_SGI_PARTITION
517	select DMA_NONCOHERENT
518	select GENERIC_ISA_DMA_SUPPORT_BROKEN
519	select IRQ_CPU
520	select HW_HAS_EISA
521	select I8253
522	select I8259
523	select SGI_HAS_I8042
524	select SGI_HAS_INDYDOG
525	select SGI_HAS_HAL2
526	select SGI_HAS_SEEQ
527	select SGI_HAS_WD93
528	select SGI_HAS_ZILOG
529	select SWAP_IO_SPACE
530	select SYS_HAS_CPU_R10000
531	#
532	# Disable EARLY_PRINTK for now since it leads to overwritten prom
533	# memory during early boot on some machines.
534	#
535	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
536	# for a more details discussion
537	#
538	# select SYS_HAS_EARLY_PRINTK
539	select SYS_SUPPORTS_64BIT_KERNEL
540	select SYS_SUPPORTS_BIG_ENDIAN
541      help
542        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
543        kernel that runs on these, say Y here.
544
545config SGI_IP32
546	bool "SGI IP32 (O2)"
547	select FW_ARC
548	select FW_ARC32
549	select BOOT_ELF32
550	select CEVT_R4K
551	select CSRC_R4K
552	select DMA_NONCOHERENT
553	select HW_HAS_PCI
554	select IRQ_CPU
555	select R5000_CPU_SCACHE
556	select RM7000_CPU_SCACHE
557	select SYS_HAS_CPU_R5000
558	select SYS_HAS_CPU_R10000 if BROKEN
559	select SYS_HAS_CPU_RM7000
560	select SYS_HAS_CPU_NEVADA
561	select SYS_SUPPORTS_64BIT_KERNEL
562	select SYS_SUPPORTS_BIG_ENDIAN
563	help
564	  If you want this kernel to run on SGI O2 workstation, say Y here.
565
566config SIBYTE_CRHINE
567	bool "Sibyte BCM91120C-CRhine"
568	select BOOT_ELF32
569	select DMA_COHERENT
570	select SIBYTE_BCM1120
571	select SWAP_IO_SPACE
572	select SYS_HAS_CPU_SB1
573	select SYS_SUPPORTS_BIG_ENDIAN
574	select SYS_SUPPORTS_LITTLE_ENDIAN
575
576config SIBYTE_CARMEL
577	bool "Sibyte BCM91120x-Carmel"
578	select BOOT_ELF32
579	select DMA_COHERENT
580	select SIBYTE_BCM1120
581	select SWAP_IO_SPACE
582	select SYS_HAS_CPU_SB1
583	select SYS_SUPPORTS_BIG_ENDIAN
584	select SYS_SUPPORTS_LITTLE_ENDIAN
585
586config SIBYTE_CRHONE
587	bool "Sibyte BCM91125C-CRhone"
588	select BOOT_ELF32
589	select DMA_COHERENT
590	select SIBYTE_BCM1125
591	select SWAP_IO_SPACE
592	select SYS_HAS_CPU_SB1
593	select SYS_SUPPORTS_BIG_ENDIAN
594	select SYS_SUPPORTS_HIGHMEM
595	select SYS_SUPPORTS_LITTLE_ENDIAN
596
597config SIBYTE_RHONE
598	bool "Sibyte BCM91125E-Rhone"
599	select BOOT_ELF32
600	select DMA_COHERENT
601	select SIBYTE_BCM1125H
602	select SWAP_IO_SPACE
603	select SYS_HAS_CPU_SB1
604	select SYS_SUPPORTS_BIG_ENDIAN
605	select SYS_SUPPORTS_LITTLE_ENDIAN
606
607config SIBYTE_SWARM
608	bool "Sibyte BCM91250A-SWARM"
609	select BOOT_ELF32
610	select DMA_COHERENT
611	select HAVE_PATA_PLATFORM
612	select NR_CPUS_DEFAULT_2
613	select SIBYTE_SB1250
614	select SWAP_IO_SPACE
615	select SYS_HAS_CPU_SB1
616	select SYS_SUPPORTS_BIG_ENDIAN
617	select SYS_SUPPORTS_HIGHMEM
618	select SYS_SUPPORTS_LITTLE_ENDIAN
619	select ZONE_DMA32 if 64BIT
620
621config SIBYTE_LITTLESUR
622	bool "Sibyte BCM91250C2-LittleSur"
623	select BOOT_ELF32
624	select DMA_COHERENT
625	select HAVE_PATA_PLATFORM
626	select NR_CPUS_DEFAULT_2
627	select SIBYTE_SB1250
628	select SWAP_IO_SPACE
629	select SYS_HAS_CPU_SB1
630	select SYS_SUPPORTS_BIG_ENDIAN
631	select SYS_SUPPORTS_HIGHMEM
632	select SYS_SUPPORTS_LITTLE_ENDIAN
633
634config SIBYTE_SENTOSA
635	bool "Sibyte BCM91250E-Sentosa"
636	select BOOT_ELF32
637	select DMA_COHERENT
638	select NR_CPUS_DEFAULT_2
639	select SIBYTE_SB1250
640	select SWAP_IO_SPACE
641	select SYS_HAS_CPU_SB1
642	select SYS_SUPPORTS_BIG_ENDIAN
643	select SYS_SUPPORTS_LITTLE_ENDIAN
644
645config SIBYTE_BIGSUR
646	bool "Sibyte BCM91480B-BigSur"
647	select BOOT_ELF32
648	select DMA_COHERENT
649	select NR_CPUS_DEFAULT_4
650	select SIBYTE_BCM1x80
651	select SWAP_IO_SPACE
652	select SYS_HAS_CPU_SB1
653	select SYS_SUPPORTS_BIG_ENDIAN
654	select SYS_SUPPORTS_HIGHMEM
655	select SYS_SUPPORTS_LITTLE_ENDIAN
656	select ZONE_DMA32 if 64BIT
657
658config SNI_RM
659	bool "SNI RM200/300/400"
660	select FW_ARC if CPU_LITTLE_ENDIAN
661	select FW_ARC32 if CPU_LITTLE_ENDIAN
662	select FW_SNIPROM if CPU_BIG_ENDIAN
663	select ARCH_MAY_HAVE_PC_FDC
664	select BOOT_ELF32
665	select CEVT_R4K
666	select CSRC_R4K
667	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
668	select DMA_NONCOHERENT
669	select GENERIC_ISA_DMA
670	select HAVE_PCSPKR_PLATFORM
671	select HW_HAS_EISA
672	select HW_HAS_PCI
673	select IRQ_CPU
674	select I8253
675	select I8259
676	select ISA
677	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
678	select SYS_HAS_CPU_R4X00
679	select SYS_HAS_CPU_R5000
680	select SYS_HAS_CPU_R10000
681	select R5000_CPU_SCACHE
682	select SYS_HAS_EARLY_PRINTK
683	select SYS_SUPPORTS_32BIT_KERNEL
684	select SYS_SUPPORTS_64BIT_KERNEL
685	select SYS_SUPPORTS_BIG_ENDIAN
686	select SYS_SUPPORTS_HIGHMEM
687	select SYS_SUPPORTS_LITTLE_ENDIAN
688	help
689	  The SNI RM200/300/400 are MIPS-based machines manufactured by
690	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
691	  Technology and now in turn merged with Fujitsu.  Say Y here to
692	  support this machine type.
693
694config MACH_TX39XX
695	bool "Toshiba TX39 series based machines"
696
697config MACH_TX49XX
698	bool "Toshiba TX49 series based machines"
699
700config MIKROTIK_RB532
701	bool "Mikrotik RB532 boards"
702	select CEVT_R4K
703	select CSRC_R4K
704	select DMA_NONCOHERENT
705	select HW_HAS_PCI
706	select IRQ_CPU
707	select SYS_HAS_CPU_MIPS32_R1
708	select SYS_SUPPORTS_32BIT_KERNEL
709	select SYS_SUPPORTS_LITTLE_ENDIAN
710	select SWAP_IO_SPACE
711	select BOOT_RAW
712	select ARCH_REQUIRE_GPIOLIB
713	help
714	  Support the Mikrotik(tm) RouterBoard 532 series,
715	  based on the IDT RC32434 SoC.
716
717config CAVIUM_OCTEON_SOC
718	bool "Cavium Networks Octeon SoC based boards"
719	select CEVT_R4K
720	select 64BIT_PHYS_ADDR
721	select DMA_COHERENT
722	select SYS_SUPPORTS_64BIT_KERNEL
723	select SYS_SUPPORTS_BIG_ENDIAN
724	select EDAC_SUPPORT
725	select SYS_SUPPORTS_HOTPLUG_CPU
726	select SYS_HAS_EARLY_PRINTK
727	select SYS_HAS_CPU_CAVIUM_OCTEON
728	select SWAP_IO_SPACE
729	select HW_HAS_PCI
730	select ARCH_SUPPORTS_MSI
731	select ZONE_DMA32
732	select USB_ARCH_HAS_OHCI
733	select USB_ARCH_HAS_EHCI
734	select HOLES_IN_ZONE
735	help
736	  This option supports all of the Octeon reference boards from Cavium
737	  Networks. It builds a kernel that dynamically determines the Octeon
738	  CPU type and supports all known board reference implementations.
739	  Some of the supported boards are:
740		EBT3000
741		EBH3000
742		EBH3100
743		Thunder
744		Kodama
745		Hikari
746	  Say Y here for most Octeon reference boards.
747
748config NLM_XLR_BOARD
749	bool "Netlogic XLR/XLS based systems"
750	select BOOT_ELF32
751	select NLM_COMMON
752	select SYS_HAS_CPU_XLR
753	select SYS_SUPPORTS_SMP
754	select HW_HAS_PCI
755	select SWAP_IO_SPACE
756	select SYS_SUPPORTS_32BIT_KERNEL
757	select SYS_SUPPORTS_64BIT_KERNEL
758	select 64BIT_PHYS_ADDR
759	select SYS_SUPPORTS_BIG_ENDIAN
760	select SYS_SUPPORTS_HIGHMEM
761	select DMA_COHERENT
762	select NR_CPUS_DEFAULT_32
763	select CEVT_R4K
764	select CSRC_R4K
765	select IRQ_CPU
766	select ARCH_SUPPORTS_MSI
767	select ZONE_DMA32 if 64BIT
768	select SYNC_R4K
769	select SYS_HAS_EARLY_PRINTK
770	select USB_ARCH_HAS_OHCI if USB_SUPPORT
771	select USB_ARCH_HAS_EHCI if USB_SUPPORT
772	select SYS_SUPPORTS_ZBOOT
773	select SYS_SUPPORTS_ZBOOT_UART16550
774	help
775	  Support for systems based on Netlogic XLR and XLS processors.
776	  Say Y here if you have a XLR or XLS based board.
777
778config NLM_XLP_BOARD
779	bool "Netlogic XLP based systems"
780	select BOOT_ELF32
781	select NLM_COMMON
782	select SYS_HAS_CPU_XLP
783	select SYS_SUPPORTS_SMP
784	select HW_HAS_PCI
785	select SYS_SUPPORTS_32BIT_KERNEL
786	select SYS_SUPPORTS_64BIT_KERNEL
787	select 64BIT_PHYS_ADDR
788	select SYS_SUPPORTS_BIG_ENDIAN
789	select SYS_SUPPORTS_LITTLE_ENDIAN
790	select SYS_SUPPORTS_HIGHMEM
791	select DMA_COHERENT
792	select NR_CPUS_DEFAULT_32
793	select CEVT_R4K
794	select CSRC_R4K
795	select IRQ_CPU
796	select ZONE_DMA32 if 64BIT
797	select SYNC_R4K
798	select SYS_HAS_EARLY_PRINTK
799	select USE_OF
800	select SYS_SUPPORTS_ZBOOT
801	select SYS_SUPPORTS_ZBOOT_UART16550
802	help
803	  This board is based on Netlogic XLP Processor.
804	  Say Y here if you have a XLP based board.
805
806endchoice
807
808source "arch/mips/alchemy/Kconfig"
809source "arch/mips/ath79/Kconfig"
810source "arch/mips/bcm47xx/Kconfig"
811source "arch/mips/bcm63xx/Kconfig"
812source "arch/mips/jazz/Kconfig"
813source "arch/mips/jz4740/Kconfig"
814source "arch/mips/lantiq/Kconfig"
815source "arch/mips/lasat/Kconfig"
816source "arch/mips/pmcs-msp71xx/Kconfig"
817source "arch/mips/powertv/Kconfig"
818source "arch/mips/ralink/Kconfig"
819source "arch/mips/sgi-ip27/Kconfig"
820source "arch/mips/sibyte/Kconfig"
821source "arch/mips/txx9/Kconfig"
822source "arch/mips/vr41xx/Kconfig"
823source "arch/mips/cavium-octeon/Kconfig"
824source "arch/mips/loongson/Kconfig"
825source "arch/mips/loongson1/Kconfig"
826source "arch/mips/netlogic/Kconfig"
827
828endmenu
829
830config RWSEM_GENERIC_SPINLOCK
831	bool
832	default y
833
834config RWSEM_XCHGADD_ALGORITHM
835	bool
836
837config ARCH_HAS_ILOG2_U32
838	bool
839	default n
840
841config ARCH_HAS_ILOG2_U64
842	bool
843	default n
844
845config GENERIC_HWEIGHT
846	bool
847	default y
848
849config GENERIC_CALIBRATE_DELAY
850	bool
851	default y
852
853config SCHED_OMIT_FRAME_POINTER
854	bool
855	default y
856
857#
858# Select some configuration options automatically based on user selections.
859#
860config FW_ARC
861	bool
862
863config ARCH_MAY_HAVE_PC_FDC
864	bool
865
866config BOOT_RAW
867	bool
868
869config CEVT_BCM1480
870	bool
871
872config CEVT_DS1287
873	bool
874
875config CEVT_GT641XX
876	bool
877
878config CEVT_R4K
879	bool
880
881config CEVT_GIC
882	bool
883
884config CEVT_SB1250
885	bool
886
887config CEVT_TXX9
888	bool
889
890config CSRC_BCM1480
891	bool
892
893config CSRC_IOASIC
894	bool
895
896config CSRC_POWERTV
897	bool
898
899config CSRC_R4K
900	bool
901
902config CSRC_GIC
903	bool
904
905config CSRC_SB1250
906	bool
907
908config GPIO_TXX9
909	select ARCH_REQUIRE_GPIOLIB
910	bool
911
912config FW_CFE
913	bool
914
915config ARCH_DMA_ADDR_T_64BIT
916	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
917
918config DMA_COHERENT
919	bool
920
921config DMA_NONCOHERENT
922	bool
923	select NEED_DMA_MAP_STATE
924
925config NEED_DMA_MAP_STATE
926	bool
927
928config SYS_HAS_EARLY_PRINTK
929	bool
930
931config HOTPLUG_CPU
932	bool "Support for hot-pluggable CPUs"
933	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
934	help
935	  Say Y here to allow turning CPUs off and on. CPUs can be
936	  controlled through /sys/devices/system/cpu.
937	  (Note: power management support will enable this option
938	    automatically on SMP systems. )
939	  Say N if you want to disable CPU hotplug.
940
941config SYS_SUPPORTS_HOTPLUG_CPU
942	bool
943
944config I8259
945	bool
946
947config MIPS_BONITO64
948	bool
949
950config MIPS_MSC
951	bool
952
953config MIPS_NILE4
954	bool
955
956config SYNC_R4K
957	bool
958
959config MIPS_MACHINE
960	def_bool n
961
962config NO_IOPORT
963	def_bool n
964
965config GENERIC_ISA_DMA
966	bool
967	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
968	select ISA_DMA_API
969
970config GENERIC_ISA_DMA_SUPPORT_BROKEN
971	bool
972	select GENERIC_ISA_DMA
973
974config ISA_DMA_API
975	bool
976
977config HOLES_IN_ZONE
978	bool
979
980#
981# Endianness selection.  Sufficiently obscure so many users don't know what to
982# answer,so we try hard to limit the available choices.  Also the use of a
983# choice statement should be more obvious to the user.
984#
985choice
986	prompt "Endianness selection"
987	help
988	  Some MIPS machines can be configured for either little or big endian
989	  byte order. These modes require different kernels and a different
990	  Linux distribution.  In general there is one preferred byteorder for a
991	  particular system but some systems are just as commonly used in the
992	  one or the other endianness.
993
994config CPU_BIG_ENDIAN
995	bool "Big endian"
996	depends on SYS_SUPPORTS_BIG_ENDIAN
997
998config CPU_LITTLE_ENDIAN
999	bool "Little endian"
1000	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1001
1002endchoice
1003
1004config EXPORT_UASM
1005	bool
1006
1007config SYS_SUPPORTS_APM_EMULATION
1008	bool
1009
1010config SYS_SUPPORTS_BIG_ENDIAN
1011	bool
1012
1013config SYS_SUPPORTS_LITTLE_ENDIAN
1014	bool
1015
1016config SYS_SUPPORTS_HUGETLBFS
1017	bool
1018	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1019	default y
1020
1021config MIPS_HUGE_TLB_SUPPORT
1022	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1023
1024config IRQ_CPU
1025	bool
1026
1027config IRQ_CPU_RM7K
1028	bool
1029
1030config IRQ_MSP_SLP
1031	bool
1032
1033config IRQ_MSP_CIC
1034	bool
1035
1036config IRQ_TXX9
1037	bool
1038
1039config IRQ_GT641XX
1040	bool
1041
1042config IRQ_GIC
1043	bool
1044
1045config PCI_GT64XXX_PCI0
1046	bool
1047
1048config NO_EXCEPT_FILL
1049	bool
1050
1051config SOC_EMMA2RH
1052	bool
1053	select CEVT_R4K
1054	select CSRC_R4K
1055	select DMA_NONCOHERENT
1056	select IRQ_CPU
1057	select SWAP_IO_SPACE
1058	select SYS_HAS_CPU_R5500
1059	select SYS_SUPPORTS_32BIT_KERNEL
1060	select SYS_SUPPORTS_64BIT_KERNEL
1061	select SYS_SUPPORTS_BIG_ENDIAN
1062
1063config SOC_PNX833X
1064	bool
1065	select CEVT_R4K
1066	select CSRC_R4K
1067	select IRQ_CPU
1068	select DMA_NONCOHERENT
1069	select SYS_HAS_CPU_MIPS32_R2
1070	select SYS_SUPPORTS_32BIT_KERNEL
1071	select SYS_SUPPORTS_LITTLE_ENDIAN
1072	select SYS_SUPPORTS_BIG_ENDIAN
1073	select CPU_MIPSR2_IRQ_VI
1074
1075config SOC_PNX8335
1076	bool
1077	select SOC_PNX833X
1078
1079config SWAP_IO_SPACE
1080	bool
1081
1082config SGI_HAS_INDYDOG
1083	bool
1084
1085config SGI_HAS_HAL2
1086	bool
1087
1088config SGI_HAS_SEEQ
1089	bool
1090
1091config SGI_HAS_WD93
1092	bool
1093
1094config SGI_HAS_ZILOG
1095	bool
1096
1097config SGI_HAS_I8042
1098	bool
1099
1100config DEFAULT_SGI_PARTITION
1101	bool
1102
1103config FW_ARC32
1104	bool
1105
1106config FW_SNIPROM
1107	bool
1108
1109config BOOT_ELF32
1110	bool
1111
1112config MIPS_L1_CACHE_SHIFT
1113	int
1114	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1115	default "6" if MIPS_CPU_SCACHE
1116	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1117	default "5"
1118
1119config HAVE_STD_PC_SERIAL_PORT
1120	bool
1121
1122config ARC_CONSOLE
1123	bool "ARC console support"
1124	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1125
1126config ARC_MEMORY
1127	bool
1128	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1129	default y
1130
1131config ARC_PROMLIB
1132	bool
1133	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1134	default y
1135
1136config FW_ARC64
1137	bool
1138
1139config BOOT_ELF64
1140	bool
1141
1142menu "CPU selection"
1143
1144choice
1145	prompt "CPU type"
1146	default CPU_R4X00
1147
1148config CPU_LOONGSON2E
1149	bool "Loongson 2E"
1150	depends on SYS_HAS_CPU_LOONGSON2E
1151	select CPU_LOONGSON2
1152	help
1153	  The Loongson 2E processor implements the MIPS III instruction set
1154	  with many extensions.
1155
1156	  It has an internal FPGA northbridge, which is compatible to
1157	  bonito64.
1158
1159config CPU_LOONGSON2F
1160	bool "Loongson 2F"
1161	depends on SYS_HAS_CPU_LOONGSON2F
1162	select CPU_LOONGSON2
1163	select ARCH_REQUIRE_GPIOLIB
1164	help
1165	  The Loongson 2F processor implements the MIPS III instruction set
1166	  with many extensions.
1167
1168	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1169	  have a similar programming interface with FPGA northbridge used in
1170	  Loongson2E.
1171
1172config CPU_LOONGSON1B
1173	bool "Loongson 1B"
1174	depends on SYS_HAS_CPU_LOONGSON1B
1175	select CPU_LOONGSON1
1176	help
1177	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1178	  release 2 instruction set.
1179
1180config CPU_MIPS32_R1
1181	bool "MIPS32 Release 1"
1182	depends on SYS_HAS_CPU_MIPS32_R1
1183	select CPU_HAS_PREFETCH
1184	select CPU_SUPPORTS_32BIT_KERNEL
1185	select CPU_SUPPORTS_HIGHMEM
1186	help
1187	  Choose this option to build a kernel for release 1 or later of the
1188	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1189	  MIPS processor are based on a MIPS32 processor.  If you know the
1190	  specific type of processor in your system, choose those that one
1191	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1192	  Release 2 of the MIPS32 architecture is available since several
1193	  years so chances are you even have a MIPS32 Release 2 processor
1194	  in which case you should choose CPU_MIPS32_R2 instead for better
1195	  performance.
1196
1197config CPU_MIPS32_R2
1198	bool "MIPS32 Release 2"
1199	depends on SYS_HAS_CPU_MIPS32_R2
1200	select CPU_HAS_PREFETCH
1201	select CPU_SUPPORTS_32BIT_KERNEL
1202	select CPU_SUPPORTS_HIGHMEM
1203	select HAVE_KVM
1204	help
1205	  Choose this option to build a kernel for release 2 or later of the
1206	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1207	  MIPS processor are based on a MIPS32 processor.  If you know the
1208	  specific type of processor in your system, choose those that one
1209	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1210
1211config CPU_MIPS64_R1
1212	bool "MIPS64 Release 1"
1213	depends on SYS_HAS_CPU_MIPS64_R1
1214	select CPU_HAS_PREFETCH
1215	select CPU_SUPPORTS_32BIT_KERNEL
1216	select CPU_SUPPORTS_64BIT_KERNEL
1217	select CPU_SUPPORTS_HIGHMEM
1218	select CPU_SUPPORTS_HUGEPAGES
1219	help
1220	  Choose this option to build a kernel for release 1 or later of the
1221	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1222	  MIPS processor are based on a MIPS64 processor.  If you know the
1223	  specific type of processor in your system, choose those that one
1224	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1225	  Release 2 of the MIPS64 architecture is available since several
1226	  years so chances are you even have a MIPS64 Release 2 processor
1227	  in which case you should choose CPU_MIPS64_R2 instead for better
1228	  performance.
1229
1230config CPU_MIPS64_R2
1231	bool "MIPS64 Release 2"
1232	depends on SYS_HAS_CPU_MIPS64_R2
1233	select CPU_HAS_PREFETCH
1234	select CPU_SUPPORTS_32BIT_KERNEL
1235	select CPU_SUPPORTS_64BIT_KERNEL
1236	select CPU_SUPPORTS_HIGHMEM
1237	select CPU_SUPPORTS_HUGEPAGES
1238	help
1239	  Choose this option to build a kernel for release 2 or later of the
1240	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1241	  MIPS processor are based on a MIPS64 processor.  If you know the
1242	  specific type of processor in your system, choose those that one
1243	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1244
1245config CPU_R3000
1246	bool "R3000"
1247	depends on SYS_HAS_CPU_R3000
1248	select CPU_HAS_WB
1249	select CPU_SUPPORTS_32BIT_KERNEL
1250	select CPU_SUPPORTS_HIGHMEM
1251	help
1252	  Please make sure to pick the right CPU type. Linux/MIPS is not
1253	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1254	  *not* work on R4000 machines and vice versa.  However, since most
1255	  of the supported machines have an R4000 (or similar) CPU, R4x00
1256	  might be a safe bet.  If the resulting kernel does not work,
1257	  try to recompile with R3000.
1258
1259config CPU_TX39XX
1260	bool "R39XX"
1261	depends on SYS_HAS_CPU_TX39XX
1262	select CPU_SUPPORTS_32BIT_KERNEL
1263
1264config CPU_VR41XX
1265	bool "R41xx"
1266	depends on SYS_HAS_CPU_VR41XX
1267	select CPU_SUPPORTS_32BIT_KERNEL
1268	select CPU_SUPPORTS_64BIT_KERNEL
1269	help
1270	  The options selects support for the NEC VR4100 series of processors.
1271	  Only choose this option if you have one of these processors as a
1272	  kernel built with this option will not run on any other type of
1273	  processor or vice versa.
1274
1275config CPU_R4300
1276	bool "R4300"
1277	depends on SYS_HAS_CPU_R4300
1278	select CPU_SUPPORTS_32BIT_KERNEL
1279	select CPU_SUPPORTS_64BIT_KERNEL
1280	help
1281	  MIPS Technologies R4300-series processors.
1282
1283config CPU_R4X00
1284	bool "R4x00"
1285	depends on SYS_HAS_CPU_R4X00
1286	select CPU_SUPPORTS_32BIT_KERNEL
1287	select CPU_SUPPORTS_64BIT_KERNEL
1288	select CPU_SUPPORTS_HUGEPAGES
1289	help
1290	  MIPS Technologies R4000-series processors other than 4300, including
1291	  the R4000, R4400, R4600, and 4700.
1292
1293config CPU_TX49XX
1294	bool "R49XX"
1295	depends on SYS_HAS_CPU_TX49XX
1296	select CPU_HAS_PREFETCH
1297	select CPU_SUPPORTS_32BIT_KERNEL
1298	select CPU_SUPPORTS_64BIT_KERNEL
1299	select CPU_SUPPORTS_HUGEPAGES
1300
1301config CPU_R5000
1302	bool "R5000"
1303	depends on SYS_HAS_CPU_R5000
1304	select CPU_SUPPORTS_32BIT_KERNEL
1305	select CPU_SUPPORTS_64BIT_KERNEL
1306	select CPU_SUPPORTS_HUGEPAGES
1307	help
1308	  MIPS Technologies R5000-series processors other than the Nevada.
1309
1310config CPU_R5432
1311	bool "R5432"
1312	depends on SYS_HAS_CPU_R5432
1313	select CPU_SUPPORTS_32BIT_KERNEL
1314	select CPU_SUPPORTS_64BIT_KERNEL
1315	select CPU_SUPPORTS_HUGEPAGES
1316
1317config CPU_R5500
1318	bool "R5500"
1319	depends on SYS_HAS_CPU_R5500
1320	select CPU_SUPPORTS_32BIT_KERNEL
1321	select CPU_SUPPORTS_64BIT_KERNEL
1322	select CPU_SUPPORTS_HUGEPAGES
1323	help
1324	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1325	  instruction set.
1326
1327config CPU_R6000
1328	bool "R6000"
1329	depends on SYS_HAS_CPU_R6000
1330	select CPU_SUPPORTS_32BIT_KERNEL
1331	help
1332	  MIPS Technologies R6000 and R6000A series processors.  Note these
1333	  processors are extremely rare and the support for them is incomplete.
1334
1335config CPU_NEVADA
1336	bool "RM52xx"
1337	depends on SYS_HAS_CPU_NEVADA
1338	select CPU_SUPPORTS_32BIT_KERNEL
1339	select CPU_SUPPORTS_64BIT_KERNEL
1340	select CPU_SUPPORTS_HUGEPAGES
1341	help
1342	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1343
1344config CPU_R8000
1345	bool "R8000"
1346	depends on SYS_HAS_CPU_R8000
1347	select CPU_HAS_PREFETCH
1348	select CPU_SUPPORTS_64BIT_KERNEL
1349	help
1350	  MIPS Technologies R8000 processors.  Note these processors are
1351	  uncommon and the support for them is incomplete.
1352
1353config CPU_R10000
1354	bool "R10000"
1355	depends on SYS_HAS_CPU_R10000
1356	select CPU_HAS_PREFETCH
1357	select CPU_SUPPORTS_32BIT_KERNEL
1358	select CPU_SUPPORTS_64BIT_KERNEL
1359	select CPU_SUPPORTS_HIGHMEM
1360	select CPU_SUPPORTS_HUGEPAGES
1361	help
1362	  MIPS Technologies R10000-series processors.
1363
1364config CPU_RM7000
1365	bool "RM7000"
1366	depends on SYS_HAS_CPU_RM7000
1367	select CPU_HAS_PREFETCH
1368	select CPU_SUPPORTS_32BIT_KERNEL
1369	select CPU_SUPPORTS_64BIT_KERNEL
1370	select CPU_SUPPORTS_HIGHMEM
1371	select CPU_SUPPORTS_HUGEPAGES
1372
1373config CPU_SB1
1374	bool "SB1"
1375	depends on SYS_HAS_CPU_SB1
1376	select CPU_SUPPORTS_32BIT_KERNEL
1377	select CPU_SUPPORTS_64BIT_KERNEL
1378	select CPU_SUPPORTS_HIGHMEM
1379	select CPU_SUPPORTS_HUGEPAGES
1380	select WEAK_ORDERING
1381
1382config CPU_CAVIUM_OCTEON
1383	bool "Cavium Octeon processor"
1384	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1385	select ARCH_SPARSEMEM_ENABLE
1386	select CPU_HAS_PREFETCH
1387	select CPU_SUPPORTS_64BIT_KERNEL
1388	select SYS_SUPPORTS_SMP
1389	select NR_CPUS_DEFAULT_16
1390	select WEAK_ORDERING
1391	select CPU_SUPPORTS_HIGHMEM
1392	select CPU_SUPPORTS_HUGEPAGES
1393	select LIBFDT
1394	select USE_OF
1395	select USB_EHCI_BIG_ENDIAN_MMIO
1396	help
1397	  The Cavium Octeon processor is a highly integrated chip containing
1398	  many ethernet hardware widgets for networking tasks. The processor
1399	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1400	  Full details can be found at http://www.caviumnetworks.com.
1401
1402config CPU_BMIPS3300
1403	bool "BMIPS3300"
1404	depends on SYS_HAS_CPU_BMIPS3300
1405	select CPU_BMIPS
1406	help
1407	  Broadcom BMIPS3300 processors.
1408
1409config CPU_BMIPS4350
1410	bool "BMIPS4350"
1411	depends on SYS_HAS_CPU_BMIPS4350
1412	select CPU_BMIPS
1413	select SYS_SUPPORTS_SMP
1414	select SYS_SUPPORTS_HOTPLUG_CPU
1415	help
1416	  Broadcom BMIPS4350 ("VIPER") processors.
1417
1418config CPU_BMIPS4380
1419	bool "BMIPS4380"
1420	depends on SYS_HAS_CPU_BMIPS4380
1421	select CPU_BMIPS
1422	select SYS_SUPPORTS_SMP
1423	select SYS_SUPPORTS_HOTPLUG_CPU
1424	help
1425	  Broadcom BMIPS4380 processors.
1426
1427config CPU_BMIPS5000
1428	bool "BMIPS5000"
1429	depends on SYS_HAS_CPU_BMIPS5000
1430	select CPU_BMIPS
1431	select CPU_SUPPORTS_HIGHMEM
1432	select MIPS_CPU_SCACHE
1433	select SYS_SUPPORTS_SMP
1434	select SYS_SUPPORTS_HOTPLUG_CPU
1435	help
1436	  Broadcom BMIPS5000 processors.
1437
1438config CPU_XLR
1439	bool "Netlogic XLR SoC"
1440	depends on SYS_HAS_CPU_XLR
1441	select CPU_SUPPORTS_32BIT_KERNEL
1442	select CPU_SUPPORTS_64BIT_KERNEL
1443	select CPU_SUPPORTS_HIGHMEM
1444	select CPU_SUPPORTS_HUGEPAGES
1445	select WEAK_ORDERING
1446	select WEAK_REORDERING_BEYOND_LLSC
1447	help
1448	  Netlogic Microsystems XLR/XLS processors.
1449
1450config CPU_XLP
1451	bool "Netlogic XLP SoC"
1452	depends on SYS_HAS_CPU_XLP
1453	select CPU_SUPPORTS_32BIT_KERNEL
1454	select CPU_SUPPORTS_64BIT_KERNEL
1455	select CPU_SUPPORTS_HIGHMEM
1456	select WEAK_ORDERING
1457	select WEAK_REORDERING_BEYOND_LLSC
1458	select CPU_HAS_PREFETCH
1459	select CPU_MIPSR2
1460	help
1461	  Netlogic Microsystems XLP processors.
1462endchoice
1463
1464if CPU_LOONGSON2F
1465config CPU_NOP_WORKAROUNDS
1466	bool
1467
1468config CPU_JUMP_WORKAROUNDS
1469	bool
1470
1471config CPU_LOONGSON2F_WORKAROUNDS
1472	bool "Loongson 2F Workarounds"
1473	default y
1474	select CPU_NOP_WORKAROUNDS
1475	select CPU_JUMP_WORKAROUNDS
1476	help
1477	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1478	  require workarounds.  Without workarounds the system may hang
1479	  unexpectedly.  For more information please refer to the gas
1480	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1481
1482	  Loongson 2F03 and later have fixed these issues and no workarounds
1483	  are needed.  The workarounds have no significant side effect on them
1484	  but may decrease the performance of the system so this option should
1485	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1486	  systems.
1487
1488	  If unsure, please say Y.
1489endif # CPU_LOONGSON2F
1490
1491config SYS_SUPPORTS_ZBOOT
1492	bool
1493	select HAVE_KERNEL_GZIP
1494	select HAVE_KERNEL_BZIP2
1495	select HAVE_KERNEL_LZMA
1496	select HAVE_KERNEL_LZO
1497
1498config SYS_SUPPORTS_ZBOOT_UART16550
1499	bool
1500	select SYS_SUPPORTS_ZBOOT
1501
1502config CPU_LOONGSON2
1503	bool
1504	select CPU_SUPPORTS_32BIT_KERNEL
1505	select CPU_SUPPORTS_64BIT_KERNEL
1506	select CPU_SUPPORTS_HIGHMEM
1507	select CPU_SUPPORTS_HUGEPAGES
1508
1509config CPU_LOONGSON1
1510	bool
1511	select CPU_MIPS32
1512	select CPU_MIPSR2
1513	select CPU_HAS_PREFETCH
1514	select CPU_SUPPORTS_32BIT_KERNEL
1515	select CPU_SUPPORTS_HIGHMEM
1516
1517config CPU_BMIPS
1518	bool
1519	select CPU_MIPS32
1520	select CPU_SUPPORTS_32BIT_KERNEL
1521	select DMA_NONCOHERENT
1522	select IRQ_CPU
1523	select SWAP_IO_SPACE
1524	select WEAK_ORDERING
1525
1526config SYS_HAS_CPU_LOONGSON2E
1527	bool
1528
1529config SYS_HAS_CPU_LOONGSON2F
1530	bool
1531	select CPU_SUPPORTS_CPUFREQ
1532	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1533	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1534
1535config SYS_HAS_CPU_LOONGSON1B
1536	bool
1537
1538config SYS_HAS_CPU_MIPS32_R1
1539	bool
1540
1541config SYS_HAS_CPU_MIPS32_R2
1542	bool
1543
1544config SYS_HAS_CPU_MIPS64_R1
1545	bool
1546
1547config SYS_HAS_CPU_MIPS64_R2
1548	bool
1549
1550config SYS_HAS_CPU_R3000
1551	bool
1552
1553config SYS_HAS_CPU_TX39XX
1554	bool
1555
1556config SYS_HAS_CPU_VR41XX
1557	bool
1558
1559config SYS_HAS_CPU_R4300
1560	bool
1561
1562config SYS_HAS_CPU_R4X00
1563	bool
1564
1565config SYS_HAS_CPU_TX49XX
1566	bool
1567
1568config SYS_HAS_CPU_R5000
1569	bool
1570
1571config SYS_HAS_CPU_R5432
1572	bool
1573
1574config SYS_HAS_CPU_R5500
1575	bool
1576
1577config SYS_HAS_CPU_R6000
1578	bool
1579
1580config SYS_HAS_CPU_NEVADA
1581	bool
1582
1583config SYS_HAS_CPU_R8000
1584	bool
1585
1586config SYS_HAS_CPU_R10000
1587	bool
1588
1589config SYS_HAS_CPU_RM7000
1590	bool
1591
1592config SYS_HAS_CPU_SB1
1593	bool
1594
1595config SYS_HAS_CPU_CAVIUM_OCTEON
1596	bool
1597
1598config SYS_HAS_CPU_BMIPS3300
1599	bool
1600
1601config SYS_HAS_CPU_BMIPS4350
1602	bool
1603
1604config SYS_HAS_CPU_BMIPS4380
1605	bool
1606
1607config SYS_HAS_CPU_BMIPS5000
1608	bool
1609
1610config SYS_HAS_CPU_XLR
1611	bool
1612
1613config SYS_HAS_CPU_XLP
1614	bool
1615
1616#
1617# CPU may reorder R->R, R->W, W->R, W->W
1618# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1619#
1620config WEAK_ORDERING
1621	bool
1622
1623#
1624# CPU may reorder reads and writes beyond LL/SC
1625# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1626#
1627config WEAK_REORDERING_BEYOND_LLSC
1628	bool
1629endmenu
1630
1631#
1632# These two indicate any level of the MIPS32 and MIPS64 architecture
1633#
1634config CPU_MIPS32
1635	bool
1636	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1637
1638config CPU_MIPS64
1639	bool
1640	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1641
1642#
1643# These two indicate the revision of the architecture, either Release 1 or Release 2
1644#
1645config CPU_MIPSR1
1646	bool
1647	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1648
1649config CPU_MIPSR2
1650	bool
1651	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1652
1653config SYS_SUPPORTS_32BIT_KERNEL
1654	bool
1655config SYS_SUPPORTS_64BIT_KERNEL
1656	bool
1657config CPU_SUPPORTS_32BIT_KERNEL
1658	bool
1659config CPU_SUPPORTS_64BIT_KERNEL
1660	bool
1661config CPU_SUPPORTS_CPUFREQ
1662	bool
1663config CPU_SUPPORTS_ADDRWINCFG
1664	bool
1665config CPU_SUPPORTS_HUGEPAGES
1666	bool
1667config CPU_SUPPORTS_UNCACHED_ACCELERATED
1668	bool
1669config MIPS_PGD_C0_CONTEXT
1670	bool
1671	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1672
1673#
1674# Set to y for ptrace access to watch registers.
1675#
1676config HARDWARE_WATCHPOINTS
1677       bool
1678       default y if CPU_MIPSR1 || CPU_MIPSR2
1679
1680menu "Kernel type"
1681
1682choice
1683	prompt "Kernel code model"
1684	help
1685	  You should only select this option if you have a workload that
1686	  actually benefits from 64-bit processing or if your machine has
1687	  large memory.  You will only be presented a single option in this
1688	  menu if your system does not support both 32-bit and 64-bit kernels.
1689
1690config 32BIT
1691	bool "32-bit kernel"
1692	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1693	select TRAD_SIGNALS
1694	help
1695	  Select this option if you want to build a 32-bit kernel.
1696config 64BIT
1697	bool "64-bit kernel"
1698	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1699	help
1700	  Select this option if you want to build a 64-bit kernel.
1701
1702endchoice
1703
1704config KVM_GUEST
1705	bool "KVM Guest Kernel"
1706	depends on BROKEN_ON_SMP
1707	help
1708	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1709
1710config KVM_HOST_FREQ
1711	int "KVM Host Processor Frequency (MHz)"
1712	depends on KVM_GUEST
1713	default 500
1714	help
1715	  Select this option if building a guest kernel for KVM to skip
1716	  RTC emulation when determining guest CPU Frequency.  Instead, the guest
1717	  processor frequency is automatically derived from the host frequency.
1718
1719choice
1720	prompt "Kernel page size"
1721	default PAGE_SIZE_4KB
1722
1723config PAGE_SIZE_4KB
1724	bool "4kB"
1725	depends on !CPU_LOONGSON2
1726	help
1727	 This option select the standard 4kB Linux page size.  On some
1728	 R3000-family processors this is the only available page size.  Using
1729	 4kB page size will minimize memory consumption and is therefore
1730	 recommended for low memory systems.
1731
1732config PAGE_SIZE_8KB
1733	bool "8kB"
1734	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1735	help
1736	  Using 8kB page size will result in higher performance kernel at
1737	  the price of higher memory consumption.  This option is available
1738	  only on R8000 and cnMIPS processors.  Note that you will need a
1739	  suitable Linux distribution to support this.
1740
1741config PAGE_SIZE_16KB
1742	bool "16kB"
1743	depends on !CPU_R3000 && !CPU_TX39XX
1744	help
1745	  Using 16kB page size will result in higher performance kernel at
1746	  the price of higher memory consumption.  This option is available on
1747	  all non-R3000 family processors.  Note that you will need a suitable
1748	  Linux distribution to support this.
1749
1750config PAGE_SIZE_32KB
1751	bool "32kB"
1752	depends on CPU_CAVIUM_OCTEON
1753	help
1754	  Using 32kB page size will result in higher performance kernel at
1755	  the price of higher memory consumption.  This option is available
1756	  only on cnMIPS cores.  Note that you will need a suitable Linux
1757	  distribution to support this.
1758
1759config PAGE_SIZE_64KB
1760	bool "64kB"
1761	depends on !CPU_R3000 && !CPU_TX39XX
1762	help
1763	  Using 64kB page size will result in higher performance kernel at
1764	  the price of higher memory consumption.  This option is available on
1765	  all non-R3000 family processor.  Not that at the time of this
1766	  writing this option is still high experimental.
1767
1768endchoice
1769
1770config FORCE_MAX_ZONEORDER
1771	int "Maximum zone order"
1772	range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1773	default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1774	range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1775	default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1776	range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1777	default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1778	range 11 64
1779	default "11"
1780	help
1781	  The kernel memory allocator divides physically contiguous memory
1782	  blocks into "zones", where each zone is a power of two number of
1783	  pages.  This option selects the largest power of two that the kernel
1784	  keeps in the memory allocator.  If you need to allocate very large
1785	  blocks of physically contiguous memory, then you may need to
1786	  increase this value.
1787
1788	  This config option is actually maximum order plus one. For example,
1789	  a value of 11 means that the largest free memory block is 2^10 pages.
1790
1791	  The page size is not necessarily 4KB.  Keep this in mind
1792	  when choosing a value for this option.
1793
1794config CEVT_GIC
1795	bool "Use GIC global counter for clock events"
1796	depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1797	help
1798	  Use the GIC global counter for the clock events. The R4K clock
1799	  event driver is always present, so if the platform ends up not
1800	  detecting a GIC, it will fall back to the R4K timer for the
1801	  generation of clock events.
1802
1803config BOARD_SCACHE
1804	bool
1805
1806config IP22_CPU_SCACHE
1807	bool
1808	select BOARD_SCACHE
1809
1810#
1811# Support for a MIPS32 / MIPS64 style S-caches
1812#
1813config MIPS_CPU_SCACHE
1814	bool
1815	select BOARD_SCACHE
1816
1817config R5000_CPU_SCACHE
1818	bool
1819	select BOARD_SCACHE
1820
1821config RM7000_CPU_SCACHE
1822	bool
1823	select BOARD_SCACHE
1824
1825config SIBYTE_DMA_PAGEOPS
1826	bool "Use DMA to clear/copy pages"
1827	depends on CPU_SB1
1828	help
1829	  Instead of using the CPU to zero and copy pages, use a Data Mover
1830	  channel.  These DMA channels are otherwise unused by the standard
1831	  SiByte Linux port.  Seems to give a small performance benefit.
1832
1833config CPU_HAS_PREFETCH
1834	bool
1835
1836config CPU_GENERIC_DUMP_TLB
1837	bool
1838	default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1839
1840config CPU_R4K_FPU
1841	bool
1842	default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1843
1844config CPU_R4K_CACHE_TLB
1845	bool
1846	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1847
1848choice
1849	prompt "MIPS MT options"
1850
1851config MIPS_MT_DISABLED
1852	bool "Disable multithreading support."
1853	help
1854	  Use this option if your workload can't take advantage of
1855	  MIPS hardware multithreading support.  On systems that don't have
1856	  the option of an MT-enabled processor this option will be the only
1857	  option in this menu.
1858
1859config MIPS_MT_SMP
1860	bool "Use 1 TC on each available VPE for SMP"
1861	depends on SYS_SUPPORTS_MULTITHREADING
1862	select CPU_MIPSR2_IRQ_VI
1863	select CPU_MIPSR2_IRQ_EI
1864	select MIPS_MT
1865	select NR_CPUS_DEFAULT_2
1866	select SMP
1867	select SYS_SUPPORTS_SCHED_SMT if SMP
1868	select SYS_SUPPORTS_SMP
1869	select SMP_UP
1870	select MIPS_PERF_SHARED_TC_COUNTERS
1871	help
1872	  This is a kernel model which is known a VSMP but lately has been
1873	  marketesed into SMVP.
1874	  Virtual SMP uses the processor's VPEs  to implement virtual
1875	  processors. In currently available configuration of the 34K processor
1876	  this allows for a dual processor. Both processors will share the same
1877	  primary caches; each will obtain the half of the TLB for it's own
1878	  exclusive use. For a layman this model can be described as similar to
1879	  what Intel calls Hyperthreading.
1880
1881	  For further information see http://www.linux-mips.org/wiki/34K#VSMP
1882
1883config MIPS_MT_SMTC
1884	bool "SMTC: Use all TCs on all VPEs for SMP"
1885	depends on CPU_MIPS32_R2
1886	#depends on CPU_MIPS64_R2		# once there is hardware ...
1887	depends on SYS_SUPPORTS_MULTITHREADING
1888	select CPU_MIPSR2_IRQ_VI
1889	select CPU_MIPSR2_IRQ_EI
1890	select MIPS_MT
1891	select NR_CPUS_DEFAULT_8
1892	select SMP
1893	select SYS_SUPPORTS_SMP
1894	select SMP_UP
1895	help
1896	  This is a kernel model which is known a SMTC or lately has been
1897	  marketesed into SMVP.
1898	  is presenting the available TC's of the core as processors to Linux.
1899	  On currently available 34K processors this means a Linux system will
1900	  see up to 5 processors. The implementation of the SMTC kernel differs
1901	  significantly from VSMP and cannot efficiently coexist in the same
1902	  kernel binary so the choice between VSMP and SMTC is a compile time
1903	  decision.
1904
1905	  For further information see http://www.linux-mips.org/wiki/34K#SMTC
1906
1907endchoice
1908
1909config MIPS_MT
1910	bool
1911
1912config SCHED_SMT
1913	bool "SMT (multithreading) scheduler support"
1914	depends on SYS_SUPPORTS_SCHED_SMT
1915	default n
1916	help
1917	  SMT scheduler support improves the CPU scheduler's decision making
1918	  when dealing with MIPS MT enabled cores at a cost of slightly
1919	  increased overhead in some places. If unsure say N here.
1920
1921config SYS_SUPPORTS_SCHED_SMT
1922	bool
1923
1924config SYS_SUPPORTS_MULTITHREADING
1925	bool
1926
1927config MIPS_MT_FPAFF
1928	bool "Dynamic FPU affinity for FP-intensive threads"
1929	default y
1930	depends on MIPS_MT_SMP || MIPS_MT_SMTC
1931
1932config MIPS_VPE_LOADER
1933	bool "VPE loader support."
1934	depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1935	select CPU_MIPSR2_IRQ_VI
1936	select CPU_MIPSR2_IRQ_EI
1937	select MIPS_MT
1938	help
1939	  Includes a loader for loading an elf relocatable object
1940	  onto another VPE and running it.
1941
1942config MIPS_MT_SMTC_IM_BACKSTOP
1943	bool "Use per-TC register bits as backstop for inhibited IM bits"
1944	depends on MIPS_MT_SMTC
1945	default n
1946	help
1947	  To support multiple TC microthreads acting as "CPUs" within
1948	  a VPE, VPE-wide interrupt mask bits must be specially manipulated
1949	  during interrupt handling. To support legacy drivers and interrupt
1950	  controller management code, SMTC has a "backstop" to track and
1951	  if necessary restore the interrupt mask. This has some performance
1952	  impact on interrupt service overhead.
1953
1954config MIPS_MT_SMTC_IRQAFF
1955	bool "Support IRQ affinity API"
1956	depends on MIPS_MT_SMTC
1957	default n
1958	help
1959	  Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1960	  for SMTC Linux kernel. Requires platform support, of which
1961	  an example can be found in the MIPS kernel i8259 and Malta
1962	  platform code.  Adds some overhead to interrupt dispatch, and
1963	  should be used only if you know what you are doing.
1964
1965config MIPS_VPE_LOADER_TOM
1966	bool "Load VPE program into memory hidden from linux"
1967	depends on MIPS_VPE_LOADER
1968	default y
1969	help
1970	  The loader can use memory that is present but has been hidden from
1971	  Linux using the kernel command line option "mem=xxMB". It's up to
1972	  you to ensure the amount you put in the option and the space your
1973	  program requires is less or equal to the amount physically present.
1974
1975# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1976config MIPS_VPE_APSP_API
1977	bool "Enable support for AP/SP API (RTLX)"
1978	depends on MIPS_VPE_LOADER
1979	help
1980
1981config MIPS_CMP
1982	bool "MIPS CMP framework support"
1983	depends on SYS_SUPPORTS_MIPS_CMP
1984	select SYNC_R4K
1985	select SYS_SUPPORTS_SMP
1986	select SYS_SUPPORTS_SCHED_SMT if SMP
1987	select WEAK_ORDERING
1988	default n
1989	help
1990	  This is a placeholder option for the GCMP work. It will need to
1991	  be handled differently...
1992
1993config SB1_PASS_1_WORKAROUNDS
1994	bool
1995	depends on CPU_SB1_PASS_1
1996	default y
1997
1998config SB1_PASS_2_WORKAROUNDS
1999	bool
2000	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2001	default y
2002
2003config SB1_PASS_2_1_WORKAROUNDS
2004	bool
2005	depends on CPU_SB1 && CPU_SB1_PASS_2
2006	default y
2007
2008
2009config 64BIT_PHYS_ADDR
2010	bool
2011
2012config ARCH_PHYS_ADDR_T_64BIT
2013       def_bool 64BIT_PHYS_ADDR
2014
2015config CPU_HAS_SMARTMIPS
2016	depends on SYS_SUPPORTS_SMARTMIPS
2017	bool "Support for the SmartMIPS ASE"
2018	help
2019	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2020	  increased security at both hardware and software level for
2021	  smartcards.  Enabling this option will allow proper use of the
2022	  SmartMIPS instructions by Linux applications.  However a kernel with
2023	  this option will not work on a MIPS core without SmartMIPS core.  If
2024	  you don't know you probably don't have SmartMIPS and should say N
2025	  here.
2026
2027config CPU_MICROMIPS
2028	depends on SYS_SUPPORTS_MICROMIPS
2029	bool "Build kernel using microMIPS ISA"
2030	help
2031	  When this option is enabled the kernel will be built using the
2032	  microMIPS ISA
2033
2034config CPU_HAS_WB
2035	bool
2036
2037config XKS01
2038	bool
2039
2040#
2041# Vectored interrupt mode is an R2 feature
2042#
2043config CPU_MIPSR2_IRQ_VI
2044	bool
2045
2046#
2047# Extended interrupt mode is an R2 feature
2048#
2049config CPU_MIPSR2_IRQ_EI
2050	bool
2051
2052config CPU_HAS_SYNC
2053	bool
2054	depends on !CPU_R3000
2055	default y
2056
2057#
2058# CPU non-features
2059#
2060config CPU_DADDI_WORKAROUNDS
2061	bool
2062
2063config CPU_R4000_WORKAROUNDS
2064	bool
2065	select CPU_R4400_WORKAROUNDS
2066
2067config CPU_R4400_WORKAROUNDS
2068	bool
2069
2070#
2071# - Highmem only makes sense for the 32-bit kernel.
2072# - The current highmem code will only work properly on physically indexed
2073#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2074#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2075#   moment we protect the user and offer the highmem option only on machines
2076#   where it's known to be safe.  This will not offer highmem on a few systems
2077#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2078#   indexed CPUs but we're playing safe.
2079# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2080#   know they might have memory configurations that could make use of highmem
2081#   support.
2082#
2083config HIGHMEM
2084	bool "High Memory Support"
2085	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2086
2087config CPU_SUPPORTS_HIGHMEM
2088	bool
2089
2090config SYS_SUPPORTS_HIGHMEM
2091	bool
2092
2093config SYS_SUPPORTS_SMARTMIPS
2094	bool
2095
2096config SYS_SUPPORTS_MICROMIPS
2097	bool
2098
2099config ARCH_FLATMEM_ENABLE
2100	def_bool y
2101	depends on !NUMA && !CPU_LOONGSON2
2102
2103config ARCH_DISCONTIGMEM_ENABLE
2104	bool
2105	default y if SGI_IP27
2106	help
2107	  Say Y to support efficient handling of discontiguous physical memory,
2108	  for architectures which are either NUMA (Non-Uniform Memory Access)
2109	  or have huge holes in the physical address space for other reasons.
2110	  See <file:Documentation/vm/numa> for more.
2111
2112config ARCH_SPARSEMEM_ENABLE
2113	bool
2114	select SPARSEMEM_STATIC
2115
2116config NUMA
2117	bool "NUMA Support"
2118	depends on SYS_SUPPORTS_NUMA
2119	help
2120	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2121	  Access).  This option improves performance on systems with more
2122	  than two nodes; on two node systems it is generally better to
2123	  leave it disabled; on single node systems disable this option
2124	  disabled.
2125
2126config SYS_SUPPORTS_NUMA
2127	bool
2128
2129config NODES_SHIFT
2130	int
2131	default "6"
2132	depends on NEED_MULTIPLE_NODES
2133
2134config HW_PERF_EVENTS
2135	bool "Enable hardware performance counter support for perf events"
2136	depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2137	default y
2138	help
2139	  Enable hardware performance counter support for perf events. If
2140	  disabled, perf events will use software events only.
2141
2142source "mm/Kconfig"
2143
2144config SMP
2145	bool "Multi-Processing support"
2146	depends on SYS_SUPPORTS_SMP
2147	select USE_GENERIC_SMP_HELPERS
2148	help
2149	  This enables support for systems with more than one CPU. If you have
2150	  a system with only one CPU, like most personal computers, say N. If
2151	  you have a system with more than one CPU, say Y.
2152
2153	  If you say N here, the kernel will run on single and multiprocessor
2154	  machines, but will use only one CPU of a multiprocessor machine. If
2155	  you say Y here, the kernel will run on many, but not all,
2156	  singleprocessor machines. On a singleprocessor machine, the kernel
2157	  will run faster if you say N here.
2158
2159	  People using multiprocessor machines who say Y here should also say
2160	  Y to "Enhanced Real Time Clock Support", below.
2161
2162	  See also the SMP-HOWTO available at
2163	  <http://www.tldp.org/docs.html#howto>.
2164
2165	  If you don't know what to do here, say N.
2166
2167config SMP_UP
2168	bool
2169
2170config SYS_SUPPORTS_MIPS_CMP
2171	bool
2172
2173config SYS_SUPPORTS_SMP
2174	bool
2175
2176config NR_CPUS_DEFAULT_1
2177	bool
2178
2179config NR_CPUS_DEFAULT_2
2180	bool
2181
2182config NR_CPUS_DEFAULT_4
2183	bool
2184
2185config NR_CPUS_DEFAULT_8
2186	bool
2187
2188config NR_CPUS_DEFAULT_16
2189	bool
2190
2191config NR_CPUS_DEFAULT_32
2192	bool
2193
2194config NR_CPUS_DEFAULT_64
2195	bool
2196
2197config NR_CPUS
2198	int "Maximum number of CPUs (2-64)"
2199	range 1 64 if NR_CPUS_DEFAULT_1
2200	depends on SMP
2201	default "1" if NR_CPUS_DEFAULT_1
2202	default "2" if NR_CPUS_DEFAULT_2
2203	default "4" if NR_CPUS_DEFAULT_4
2204	default "8" if NR_CPUS_DEFAULT_8
2205	default "16" if NR_CPUS_DEFAULT_16
2206	default "32" if NR_CPUS_DEFAULT_32
2207	default "64" if NR_CPUS_DEFAULT_64
2208	help
2209	  This allows you to specify the maximum number of CPUs which this
2210	  kernel will support.  The maximum supported value is 32 for 32-bit
2211	  kernel and 64 for 64-bit kernels; the minimum value which makes
2212	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2213	  and 2 for all others.
2214
2215	  This is purely to save memory - each supported CPU adds
2216	  approximately eight kilobytes to the kernel image.  For best
2217	  performance should round up your number of processors to the next
2218	  power of two.
2219
2220config MIPS_PERF_SHARED_TC_COUNTERS
2221	bool
2222
2223#
2224# Timer Interrupt Frequency Configuration
2225#
2226
2227choice
2228	prompt "Timer frequency"
2229	default HZ_250
2230	help
2231	 Allows the configuration of the timer frequency.
2232
2233	config HZ_48
2234		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2235
2236	config HZ_100
2237		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2238
2239	config HZ_128
2240		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2241
2242	config HZ_250
2243		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2244
2245	config HZ_256
2246		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2247
2248	config HZ_1000
2249		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2250
2251	config HZ_1024
2252		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2253
2254endchoice
2255
2256config SYS_SUPPORTS_48HZ
2257	bool
2258
2259config SYS_SUPPORTS_100HZ
2260	bool
2261
2262config SYS_SUPPORTS_128HZ
2263	bool
2264
2265config SYS_SUPPORTS_250HZ
2266	bool
2267
2268config SYS_SUPPORTS_256HZ
2269	bool
2270
2271config SYS_SUPPORTS_1000HZ
2272	bool
2273
2274config SYS_SUPPORTS_1024HZ
2275	bool
2276
2277config SYS_SUPPORTS_ARBIT_HZ
2278	bool
2279	default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2280		     !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2281		     !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2282		     !SYS_SUPPORTS_1024HZ
2283
2284config HZ
2285	int
2286	default 48 if HZ_48
2287	default 100 if HZ_100
2288	default 128 if HZ_128
2289	default 250 if HZ_250
2290	default 256 if HZ_256
2291	default 1000 if HZ_1000
2292	default 1024 if HZ_1024
2293
2294source "kernel/Kconfig.preempt"
2295
2296config KEXEC
2297	bool "Kexec system call"
2298	help
2299	  kexec is a system call that implements the ability to shutdown your
2300	  current kernel, and to start another kernel.  It is like a reboot
2301	  but it is independent of the system firmware.   And like a reboot
2302	  you can start any kernel with it, not just Linux.
2303
2304	  The name comes from the similarity to the exec system call.
2305
2306	  It is an ongoing process to be certain the hardware in a machine
2307	  is properly shutdown, so do not be surprised if this code does not
2308	  initially work for you.  It may help to enable device hotplugging
2309	  support.  As of this writing the exact hardware interface is
2310	  strongly in flux, so no good recommendation can be made.
2311
2312config CRASH_DUMP
2313	  bool "Kernel crash dumps"
2314	  help
2315	  Generate crash dump after being started by kexec.
2316	  This should be normally only set in special crash dump kernels
2317	  which are loaded in the main kernel with kexec-tools into
2318	  a specially reserved region and then later executed after
2319	  a crash by kdump/kexec. The crash dump kernel must be compiled
2320	  to a memory address not used by the main kernel or firmware using
2321	  PHYSICAL_START.
2322
2323config PHYSICAL_START
2324	  hex "Physical address where the kernel is loaded"
2325	  default "0xffffffff84000000" if 64BIT
2326	  default "0x84000000" if 32BIT
2327	  depends on CRASH_DUMP
2328	  help
2329	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2330	  If you plan to use kernel for capturing the crash dump change
2331	  this value to start of the reserved region (the "X" value as
2332	  specified in the "crashkernel=YM@XM" command line boot parameter
2333	  passed to the panic-ed kernel).
2334
2335config SECCOMP
2336	bool "Enable seccomp to safely compute untrusted bytecode"
2337	depends on PROC_FS
2338	default y
2339	help
2340	  This kernel feature is useful for number crunching applications
2341	  that may need to compute untrusted bytecode during their
2342	  execution. By using pipes or other transports made available to
2343	  the process as file descriptors supporting the read/write
2344	  syscalls, it's possible to isolate those applications in
2345	  their own address space using seccomp. Once seccomp is
2346	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2347	  and the task is only allowed to execute a few safe syscalls
2348	  defined by each seccomp mode.
2349
2350	  If unsure, say Y. Only embedded should say N here.
2351
2352config CC_STACKPROTECTOR
2353	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
2354	help
2355	  This option turns on the -fstack-protector GCC feature. This
2356	  feature puts, at the beginning of functions, a canary value on
2357	  the stack just before the return address, and validates
2358	  the value just before actually returning.  Stack based buffer
2359	  overflows (that need to overwrite this return address) now also
2360	  overwrite the canary, which gets detected and the attack is then
2361	  neutralized via a kernel panic.
2362
2363	  This feature requires gcc version 4.2 or above.
2364
2365config USE_OF
2366	bool
2367	select OF
2368	select OF_EARLY_FLATTREE
2369	select IRQ_DOMAIN
2370
2371endmenu
2372
2373config LOCKDEP_SUPPORT
2374	bool
2375	default y
2376
2377config STACKTRACE_SUPPORT
2378	bool
2379	default y
2380
2381source "init/Kconfig"
2382
2383source "kernel/Kconfig.freezer"
2384
2385menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2386
2387config HW_HAS_EISA
2388	bool
2389config HW_HAS_PCI
2390	bool
2391
2392config PCI
2393	bool "Support for PCI controller"
2394	depends on HW_HAS_PCI
2395	select PCI_DOMAINS
2396	select NO_GENERIC_PCI_IOPORT_MAP
2397	help
2398	  Find out whether you have a PCI motherboard. PCI is the name of a
2399	  bus system, i.e. the way the CPU talks to the other stuff inside
2400	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2401	  say Y, otherwise N.
2402
2403config PCI_DOMAINS
2404	bool
2405
2406source "drivers/pci/Kconfig"
2407
2408source "drivers/pci/pcie/Kconfig"
2409
2410#
2411# ISA support is now enabled via select.  Too many systems still have the one
2412# or other ISA chip on the board that users don't know about so don't expect
2413# users to choose the right thing ...
2414#
2415config ISA
2416	bool
2417
2418config EISA
2419	bool "EISA support"
2420	depends on HW_HAS_EISA
2421	select ISA
2422	select GENERIC_ISA_DMA
2423	---help---
2424	  The Extended Industry Standard Architecture (EISA) bus was
2425	  developed as an open alternative to the IBM MicroChannel bus.
2426
2427	  The EISA bus provided some of the features of the IBM MicroChannel
2428	  bus while maintaining backward compatibility with cards made for
2429	  the older ISA bus.  The EISA bus saw limited use between 1988 and
2430	  1995 when it was made obsolete by the PCI bus.
2431
2432	  Say Y here if you are building a kernel for an EISA-based machine.
2433
2434	  Otherwise, say N.
2435
2436source "drivers/eisa/Kconfig"
2437
2438config TC
2439	bool "TURBOchannel support"
2440	depends on MACH_DECSTATION
2441	help
2442	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2443	  processors.  TURBOchannel programming specifications are available
2444	  at:
2445	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2446	  and:
2447	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2448	  Linux driver support status is documented at:
2449	  <http://www.linux-mips.org/wiki/DECstation>
2450
2451config MMU
2452	bool
2453	default y
2454
2455config I8253
2456	bool
2457	select CLKSRC_I8253
2458	select CLKEVT_I8253
2459	select MIPS_EXTERNAL_TIMER
2460
2461config ZONE_DMA
2462	bool
2463
2464config ZONE_DMA32
2465	bool
2466
2467source "drivers/pcmcia/Kconfig"
2468
2469source "drivers/pci/hotplug/Kconfig"
2470
2471config RAPIDIO
2472	bool "RapidIO support"
2473	depends on PCI
2474	default n
2475	help
2476	  If you say Y here, the kernel will include drivers and
2477	  infrastructure code to support RapidIO interconnect devices.
2478
2479source "drivers/rapidio/Kconfig"
2480
2481endmenu
2482
2483menu "Executable file formats"
2484
2485source "fs/Kconfig.binfmt"
2486
2487config TRAD_SIGNALS
2488	bool
2489
2490config MIPS32_COMPAT
2491	bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2492	depends on 64BIT
2493	help
2494	  Select this option if you want Linux/MIPS 32-bit binary
2495	  compatibility. Since all software available for Linux/MIPS is
2496	  currently 32-bit you should say Y here.
2497
2498config COMPAT
2499	bool
2500	depends on MIPS32_COMPAT
2501	select ARCH_WANT_OLD_COMPAT_IPC
2502	default y
2503
2504config SYSVIPC_COMPAT
2505	bool
2506	depends on COMPAT && SYSVIPC
2507	default y
2508
2509config MIPS32_O32
2510	bool "Kernel support for o32 binaries"
2511	depends on MIPS32_COMPAT
2512	help
2513	  Select this option if you want to run o32 binaries.  These are pure
2514	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2515	  existing binaries are in this format.
2516
2517	  If unsure, say Y.
2518
2519config MIPS32_N32
2520	bool "Kernel support for n32 binaries"
2521	depends on MIPS32_COMPAT
2522	help
2523	  Select this option if you want to run n32 binaries.  These are
2524	  64-bit binaries using 32-bit quantities for addressing and certain
2525	  data that would normally be 64-bit.  They are used in special
2526	  cases.
2527
2528	  If unsure, say N.
2529
2530config BINFMT_ELF32
2531	bool
2532	default y if MIPS32_O32 || MIPS32_N32
2533
2534endmenu
2535
2536menu "Power management options"
2537
2538config ARCH_HIBERNATION_POSSIBLE
2539	def_bool y
2540	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2541
2542config ARCH_SUSPEND_POSSIBLE
2543	def_bool y
2544	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2545
2546source "kernel/power/Kconfig"
2547
2548endmenu
2549
2550config MIPS_EXTERNAL_TIMER
2551	bool
2552
2553if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2554menu "CPU Power Management"
2555source "drivers/cpufreq/Kconfig"
2556endmenu
2557endif
2558
2559source "net/Kconfig"
2560
2561source "drivers/Kconfig"
2562
2563source "drivers/firmware/Kconfig"
2564
2565source "fs/Kconfig"
2566
2567source "arch/mips/Kconfig.debug"
2568
2569source "security/Kconfig"
2570
2571source "crypto/Kconfig"
2572
2573source "lib/Kconfig"
2574
2575source "arch/mips/kvm/Kconfig"
2576