xref: /linux/arch/mips/Kconfig (revision 54aed4dd35269ef15eb1569517f34fb3961d4d34)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_BINFMT_ELF_STATE
6	select ARCH_CLOCKSOURCE_DATA
7	select ARCH_DISCARD_MEMBLOCK
8	select ARCH_HAS_ELF_RANDOMIZE
9	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
10	select ARCH_SUPPORTS_UPROBES
11	select ARCH_USE_BUILTIN_BSWAP
12	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
13	select ARCH_USE_QUEUED_RWLOCKS
14	select ARCH_USE_QUEUED_SPINLOCKS
15	select ARCH_WANT_IPC_PARSE_VERSION
16	select BUILDTIME_EXTABLE_SORT
17	select CLONE_BACKWARDS
18	select CPU_PM if CPU_IDLE
19	select DMA_DIRECT_OPS
20	select GENERIC_ATOMIC64 if !64BIT
21	select GENERIC_CLOCKEVENTS
22	select GENERIC_CMOS_UPDATE
23	select GENERIC_CPU_AUTOPROBE
24	select GENERIC_IRQ_PROBE
25	select GENERIC_IRQ_SHOW
26	select GENERIC_LIB_ASHLDI3
27	select GENERIC_LIB_ASHRDI3
28	select GENERIC_LIB_CMPDI2
29	select GENERIC_LIB_LSHRDI3
30	select GENERIC_LIB_UCMPDI2
31	select GENERIC_PCI_IOMAP
32	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
33	select GENERIC_SMP_IDLE_THREAD
34	select GENERIC_TIME_VSYSCALL
35	select HANDLE_DOMAIN_IRQ
36	select HAVE_ARCH_JUMP_LABEL
37	select HAVE_ARCH_KGDB
38	select HAVE_ARCH_MMAP_RND_BITS if MMU
39	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
40	select HAVE_ARCH_SECCOMP_FILTER
41	select HAVE_ARCH_TRACEHOOK
42	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
43	select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
44	select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
45	select HAVE_CONTEXT_TRACKING
46	select HAVE_COPY_THREAD_TLS
47	select HAVE_C_RECORDMCOUNT
48	select HAVE_DEBUG_KMEMLEAK
49	select HAVE_DEBUG_STACKOVERFLOW
50	select HAVE_DMA_CONTIGUOUS
51	select HAVE_DYNAMIC_FTRACE
52	select HAVE_EXIT_THREAD
53	select HAVE_FTRACE_MCOUNT_RECORD
54	select HAVE_FUNCTION_GRAPH_TRACER
55	select HAVE_FUNCTION_TRACER
56	select HAVE_GENERIC_DMA_COHERENT
57	select HAVE_IDE
58	select HAVE_IRQ_EXIT_ON_IRQ_STACK
59	select HAVE_IRQ_TIME_ACCOUNTING
60	select HAVE_KPROBES
61	select HAVE_KRETPROBES
62	select HAVE_MEMBLOCK
63	select HAVE_MEMBLOCK_NODE_MAP
64	select HAVE_MOD_ARCH_SPECIFIC
65	select HAVE_NMI
66	select HAVE_OPROFILE
67	select HAVE_PERF_EVENTS
68	select HAVE_REGS_AND_STACK_ACCESS_API
69	select HAVE_RSEQ
70	select HAVE_STACKPROTECTOR
71	select HAVE_SYSCALL_TRACEPOINTS
72	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
73	select IRQ_FORCED_THREADING
74	select MODULES_USE_ELF_RELA if MODULES && 64BIT
75	select MODULES_USE_ELF_REL if MODULES
76	select PERF_USE_VMALLOC
77	select RTC_LIB if !MACH_LOONGSON64
78	select SYSCTL_EXCEPTION_TRACE
79	select VIRT_TO_BUS
80
81config MIPS_DMA_DEFAULT
82	bool
83
84menu "Machine selection"
85
86choice
87	prompt "System type"
88	default MIPS_GENERIC
89
90config MIPS_GENERIC
91	bool "Generic board-agnostic MIPS kernel"
92	select BOOT_RAW
93	select BUILTIN_DTB
94	select CEVT_R4K
95	select CLKSRC_MIPS_GIC
96	select COMMON_CLK
97	select CPU_MIPSR2_IRQ_VI
98	select CPU_MIPSR2_IRQ_EI
99	select CSRC_R4K
100	select DMA_PERDEV_COHERENT
101	select HW_HAS_PCI
102	select IRQ_MIPS_CPU
103	select LIBFDT
104	select MIPS_CPU_SCACHE
105	select MIPS_DMA_DEFAULT
106	select MIPS_GIC
107	select MIPS_L1_CACHE_SHIFT_7
108	select NO_EXCEPT_FILL
109	select PCI_DRIVERS_GENERIC
110	select PINCTRL
111	select SMP_UP if SMP
112	select SWAP_IO_SPACE
113	select SYS_HAS_CPU_MIPS32_R1
114	select SYS_HAS_CPU_MIPS32_R2
115	select SYS_HAS_CPU_MIPS32_R6
116	select SYS_HAS_CPU_MIPS64_R1
117	select SYS_HAS_CPU_MIPS64_R2
118	select SYS_HAS_CPU_MIPS64_R6
119	select SYS_SUPPORTS_32BIT_KERNEL
120	select SYS_SUPPORTS_64BIT_KERNEL
121	select SYS_SUPPORTS_BIG_ENDIAN
122	select SYS_SUPPORTS_HIGHMEM
123	select SYS_SUPPORTS_LITTLE_ENDIAN
124	select SYS_SUPPORTS_MICROMIPS
125	select SYS_SUPPORTS_MIPS_CPS
126	select SYS_SUPPORTS_MIPS16
127	select SYS_SUPPORTS_MULTITHREADING
128	select SYS_SUPPORTS_RELOCATABLE
129	select SYS_SUPPORTS_SMARTMIPS
130	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
131	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
132	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
133	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
134	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
135	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
136	select USE_OF
137	help
138	  Select this to build a kernel which aims to support multiple boards,
139	  generally using a flattened device tree passed from the bootloader
140	  using the boot protocol defined in the UHI (Unified Hosting
141	  Interface) specification.
142
143config MIPS_ALCHEMY
144	bool "Alchemy processor based machines"
145	select PHYS_ADDR_T_64BIT
146	select CEVT_R4K
147	select CSRC_R4K
148	select IRQ_MIPS_CPU
149	select MIPS_DMA_DEFAULT
150	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
151	select SYS_HAS_CPU_MIPS32_R1
152	select SYS_SUPPORTS_32BIT_KERNEL
153	select SYS_SUPPORTS_APM_EMULATION
154	select GPIOLIB
155	select SYS_SUPPORTS_ZBOOT
156	select COMMON_CLK
157
158config AR7
159	bool "Texas Instruments AR7"
160	select BOOT_ELF32
161	select DMA_NONCOHERENT
162	select CEVT_R4K
163	select CSRC_R4K
164	select IRQ_MIPS_CPU
165	select MIPS_DMA_DEFAULT
166	select NO_EXCEPT_FILL
167	select SWAP_IO_SPACE
168	select SYS_HAS_CPU_MIPS32_R1
169	select SYS_HAS_EARLY_PRINTK
170	select SYS_SUPPORTS_32BIT_KERNEL
171	select SYS_SUPPORTS_LITTLE_ENDIAN
172	select SYS_SUPPORTS_MIPS16
173	select SYS_SUPPORTS_ZBOOT_UART16550
174	select GPIOLIB
175	select VLYNQ
176	select HAVE_CLK
177	help
178	  Support for the Texas Instruments AR7 System-on-a-Chip
179	  family: TNETD7100, 7200 and 7300.
180
181config ATH25
182	bool "Atheros AR231x/AR531x SoC support"
183	select CEVT_R4K
184	select CSRC_R4K
185	select DMA_NONCOHERENT
186	select IRQ_MIPS_CPU
187	select IRQ_DOMAIN
188	select MIPS_DMA_DEFAULT
189	select SYS_HAS_CPU_MIPS32_R1
190	select SYS_SUPPORTS_BIG_ENDIAN
191	select SYS_SUPPORTS_32BIT_KERNEL
192	select SYS_HAS_EARLY_PRINTK
193	help
194	  Support for Atheros AR231x and Atheros AR531x based boards
195
196config ATH79
197	bool "Atheros AR71XX/AR724X/AR913X based boards"
198	select ARCH_HAS_RESET_CONTROLLER
199	select BOOT_RAW
200	select CEVT_R4K
201	select CSRC_R4K
202	select DMA_NONCOHERENT
203	select GPIOLIB
204	select HAVE_CLK
205	select COMMON_CLK
206	select CLKDEV_LOOKUP
207	select IRQ_MIPS_CPU
208	select MIPS_DMA_DEFAULT
209	select MIPS_MACHINE
210	select SYS_HAS_CPU_MIPS32_R2
211	select SYS_HAS_EARLY_PRINTK
212	select SYS_SUPPORTS_32BIT_KERNEL
213	select SYS_SUPPORTS_BIG_ENDIAN
214	select SYS_SUPPORTS_MIPS16
215	select SYS_SUPPORTS_ZBOOT_UART_PROM
216	select USE_OF
217	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
218	help
219	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
220
221config BMIPS_GENERIC
222	bool "Broadcom Generic BMIPS kernel"
223	select BOOT_RAW
224	select NO_EXCEPT_FILL
225	select USE_OF
226	select CEVT_R4K
227	select CSRC_R4K
228	select SYNC_R4K
229	select COMMON_CLK
230	select BCM6345_L1_IRQ
231	select BCM7038_L1_IRQ
232	select BCM7120_L2_IRQ
233	select BRCMSTB_L2_IRQ
234	select IRQ_MIPS_CPU
235	select MIPS_DMA_DEFAULT
236	select DMA_NONCOHERENT
237	select SYS_SUPPORTS_32BIT_KERNEL
238	select SYS_SUPPORTS_LITTLE_ENDIAN
239	select SYS_SUPPORTS_BIG_ENDIAN
240	select SYS_SUPPORTS_HIGHMEM
241	select SYS_HAS_CPU_BMIPS32_3300
242	select SYS_HAS_CPU_BMIPS4350
243	select SYS_HAS_CPU_BMIPS4380
244	select SYS_HAS_CPU_BMIPS5000
245	select SWAP_IO_SPACE
246	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
247	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
248	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
249	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
250	select HARDIRQS_SW_RESEND
251	help
252	  Build a generic DT-based kernel image that boots on select
253	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
254	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
255	  must be set appropriately for your board.
256
257config BCM47XX
258	bool "Broadcom BCM47XX based boards"
259	select BOOT_RAW
260	select CEVT_R4K
261	select CSRC_R4K
262	select DMA_NONCOHERENT
263	select HW_HAS_PCI
264	select IRQ_MIPS_CPU
265	select SYS_HAS_CPU_MIPS32_R1
266	select MIPS_DMA_DEFAULT
267	select NO_EXCEPT_FILL
268	select SYS_SUPPORTS_32BIT_KERNEL
269	select SYS_SUPPORTS_LITTLE_ENDIAN
270	select SYS_SUPPORTS_MIPS16
271	select SYS_SUPPORTS_ZBOOT
272	select SYS_HAS_EARLY_PRINTK
273	select USE_GENERIC_EARLY_PRINTK_8250
274	select GPIOLIB
275	select LEDS_GPIO_REGISTER
276	select BCM47XX_NVRAM
277	select BCM47XX_SPROM
278	select BCM47XX_SSB if !BCM47XX_BCMA
279	help
280	 Support for BCM47XX based boards
281
282config BCM63XX
283	bool "Broadcom BCM63XX based boards"
284	select BOOT_RAW
285	select CEVT_R4K
286	select CSRC_R4K
287	select SYNC_R4K
288	select DMA_NONCOHERENT
289	select IRQ_MIPS_CPU
290	select MIPS_DMA_DEFAULT
291	select SYS_SUPPORTS_32BIT_KERNEL
292	select SYS_SUPPORTS_BIG_ENDIAN
293	select SYS_HAS_EARLY_PRINTK
294	select SWAP_IO_SPACE
295	select GPIOLIB
296	select HAVE_CLK
297	select MIPS_L1_CACHE_SHIFT_4
298	select CLKDEV_LOOKUP
299	help
300	 Support for BCM63XX based boards
301
302config MIPS_COBALT
303	bool "Cobalt Server"
304	select CEVT_R4K
305	select CSRC_R4K
306	select CEVT_GT641XX
307	select DMA_NONCOHERENT
308	select HW_HAS_PCI
309	select I8253
310	select I8259
311	select IRQ_MIPS_CPU
312	select IRQ_GT641XX
313	select MIPS_DMA_DEFAULT
314	select PCI_GT64XXX_PCI0
315	select PCI
316	select SYS_HAS_CPU_NEVADA
317	select SYS_HAS_EARLY_PRINTK
318	select SYS_SUPPORTS_32BIT_KERNEL
319	select SYS_SUPPORTS_64BIT_KERNEL
320	select SYS_SUPPORTS_LITTLE_ENDIAN
321	select USE_GENERIC_EARLY_PRINTK_8250
322
323config MACH_DECSTATION
324	bool "DECstations"
325	select BOOT_ELF32
326	select CEVT_DS1287
327	select CEVT_R4K if CPU_R4X00
328	select CSRC_IOASIC
329	select CSRC_R4K if CPU_R4X00
330	select CPU_DADDI_WORKAROUNDS if 64BIT
331	select CPU_R4000_WORKAROUNDS if 64BIT
332	select CPU_R4400_WORKAROUNDS if 64BIT
333	select DMA_NONCOHERENT
334	select MIPS_DMA_DEFAULT
335	select NO_IOPORT_MAP
336	select IRQ_MIPS_CPU
337	select SYS_HAS_CPU_R3000
338	select SYS_HAS_CPU_R4X00
339	select SYS_SUPPORTS_32BIT_KERNEL
340	select SYS_SUPPORTS_64BIT_KERNEL
341	select SYS_SUPPORTS_LITTLE_ENDIAN
342	select SYS_SUPPORTS_128HZ
343	select SYS_SUPPORTS_256HZ
344	select SYS_SUPPORTS_1024HZ
345	select MIPS_L1_CACHE_SHIFT_4
346	help
347	  This enables support for DEC's MIPS based workstations.  For details
348	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
349	  DECstation porting pages on <http://decstation.unix-ag.org/>.
350
351	  If you have one of the following DECstation Models you definitely
352	  want to choose R4xx0 for the CPU Type:
353
354		DECstation 5000/50
355		DECstation 5000/150
356		DECstation 5000/260
357		DECsystem 5900/260
358
359	  otherwise choose R3000.
360
361config MACH_JAZZ
362	bool "Jazz family of machines"
363	select ARCH_MIGHT_HAVE_PC_PARPORT
364	select ARCH_MIGHT_HAVE_PC_SERIO
365	select FW_ARC
366	select FW_ARC32
367	select ARCH_MAY_HAVE_PC_FDC
368	select CEVT_R4K
369	select CSRC_R4K
370	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
371	select GENERIC_ISA_DMA
372	select HAVE_PCSPKR_PLATFORM
373	select IRQ_MIPS_CPU
374	select I8253
375	select I8259
376	select ISA
377	select SYS_HAS_CPU_R4X00
378	select SYS_SUPPORTS_32BIT_KERNEL
379	select SYS_SUPPORTS_64BIT_KERNEL
380	select SYS_SUPPORTS_100HZ
381	help
382	 This a family of machines based on the MIPS R4030 chipset which was
383	 used by several vendors to build RISC/os and Windows NT workstations.
384	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
385	 Olivetti M700-10 workstations.
386
387config MACH_INGENIC
388	bool "Ingenic SoC based machines"
389	select SYS_SUPPORTS_32BIT_KERNEL
390	select SYS_SUPPORTS_LITTLE_ENDIAN
391	select SYS_SUPPORTS_ZBOOT_UART16550
392	select DMA_NONCOHERENT
393	select IRQ_MIPS_CPU
394	select MIPS_DMA_DEFAULT
395	select PINCTRL
396	select GPIOLIB
397	select COMMON_CLK
398	select GENERIC_IRQ_CHIP
399	select BUILTIN_DTB
400	select USE_OF
401	select LIBFDT
402
403config LANTIQ
404	bool "Lantiq based platforms"
405	select DMA_NONCOHERENT
406	select IRQ_MIPS_CPU
407	select CEVT_R4K
408	select CSRC_R4K
409	select MIPS_DMA_DEFAULT
410	select SYS_HAS_CPU_MIPS32_R1
411	select SYS_HAS_CPU_MIPS32_R2
412	select SYS_SUPPORTS_BIG_ENDIAN
413	select SYS_SUPPORTS_32BIT_KERNEL
414	select SYS_SUPPORTS_MIPS16
415	select SYS_SUPPORTS_MULTITHREADING
416	select SYS_SUPPORTS_VPE_LOADER
417	select SYS_HAS_EARLY_PRINTK
418	select GPIOLIB
419	select SWAP_IO_SPACE
420	select BOOT_RAW
421	select CLKDEV_LOOKUP
422	select USE_OF
423	select PINCTRL
424	select PINCTRL_LANTIQ
425	select ARCH_HAS_RESET_CONTROLLER
426	select RESET_CONTROLLER
427
428config LASAT
429	bool "LASAT Networks platforms"
430	select CEVT_R4K
431	select CRC32
432	select CSRC_R4K
433	select DMA_NONCOHERENT
434	select SYS_HAS_EARLY_PRINTK
435	select HW_HAS_PCI
436	select IRQ_MIPS_CPU
437	select MIPS_DMA_DEFAULT
438	select PCI_GT64XXX_PCI0
439	select MIPS_NILE4
440	select R5000_CPU_SCACHE
441	select SYS_HAS_CPU_R5000
442	select SYS_SUPPORTS_32BIT_KERNEL
443	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
444	select SYS_SUPPORTS_LITTLE_ENDIAN
445
446config MACH_LOONGSON32
447	bool "Loongson-1 family of machines"
448	select SYS_SUPPORTS_ZBOOT
449	help
450	  This enables support for the Loongson-1 family of machines.
451
452	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
453	  the Institute of Computing Technology (ICT), Chinese Academy of
454	  Sciences (CAS).
455
456config MACH_LOONGSON64
457	bool "Loongson-2/3 family of machines"
458	select SYS_SUPPORTS_ZBOOT
459	help
460	  This enables the support of Loongson-2/3 family of machines.
461
462	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
463	  family of multi-core CPUs. They are both 64-bit general-purpose
464	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
465	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
466	  in the People's Republic of China. The chief architect is Professor
467	  Weiwu Hu.
468
469config MACH_PISTACHIO
470	bool "IMG Pistachio SoC based boards"
471	select BOOT_ELF32
472	select BOOT_RAW
473	select CEVT_R4K
474	select CLKSRC_MIPS_GIC
475	select COMMON_CLK
476	select CSRC_R4K
477	select DMA_NONCOHERENT
478	select GPIOLIB
479	select IRQ_MIPS_CPU
480	select LIBFDT
481	select MFD_SYSCON
482	select MIPS_CPU_SCACHE
483	select MIPS_DMA_DEFAULT
484	select MIPS_GIC
485	select PINCTRL
486	select REGULATOR
487	select SYS_HAS_CPU_MIPS32_R2
488	select SYS_SUPPORTS_32BIT_KERNEL
489	select SYS_SUPPORTS_LITTLE_ENDIAN
490	select SYS_SUPPORTS_MIPS_CPS
491	select SYS_SUPPORTS_MULTITHREADING
492	select SYS_SUPPORTS_RELOCATABLE
493	select SYS_SUPPORTS_ZBOOT
494	select SYS_HAS_EARLY_PRINTK
495	select USE_GENERIC_EARLY_PRINTK_8250
496	select USE_OF
497	help
498	  This enables support for the IMG Pistachio SoC platform.
499
500config MIPS_MALTA
501	bool "MIPS Malta board"
502	select ARCH_MAY_HAVE_PC_FDC
503	select ARCH_MIGHT_HAVE_PC_PARPORT
504	select ARCH_MIGHT_HAVE_PC_SERIO
505	select BOOT_ELF32
506	select BOOT_RAW
507	select BUILTIN_DTB
508	select CEVT_R4K
509	select CSRC_R4K
510	select CLKSRC_MIPS_GIC
511	select COMMON_CLK
512	select DMA_MAYBE_COHERENT
513	select GENERIC_ISA_DMA
514	select HAVE_PCSPKR_PLATFORM
515	select IRQ_MIPS_CPU
516	select MIPS_DMA_DEFAULT
517	select MIPS_GIC
518	select HW_HAS_PCI
519	select I8253
520	select I8259
521	select MIPS_BONITO64
522	select MIPS_CPU_SCACHE
523	select MIPS_L1_CACHE_SHIFT_6
524	select PCI_GT64XXX_PCI0
525	select MIPS_MSC
526	select SMP_UP if SMP
527	select SWAP_IO_SPACE
528	select SYS_HAS_CPU_MIPS32_R1
529	select SYS_HAS_CPU_MIPS32_R2
530	select SYS_HAS_CPU_MIPS32_R3_5
531	select SYS_HAS_CPU_MIPS32_R5
532	select SYS_HAS_CPU_MIPS32_R6
533	select SYS_HAS_CPU_MIPS64_R1
534	select SYS_HAS_CPU_MIPS64_R2
535	select SYS_HAS_CPU_MIPS64_R6
536	select SYS_HAS_CPU_NEVADA
537	select SYS_HAS_CPU_RM7000
538	select SYS_SUPPORTS_32BIT_KERNEL
539	select SYS_SUPPORTS_64BIT_KERNEL
540	select SYS_SUPPORTS_BIG_ENDIAN
541	select SYS_SUPPORTS_HIGHMEM
542	select SYS_SUPPORTS_LITTLE_ENDIAN
543	select SYS_SUPPORTS_MICROMIPS
544	select SYS_SUPPORTS_MIPS_CMP
545	select SYS_SUPPORTS_MIPS_CPS
546	select SYS_SUPPORTS_MIPS16
547	select SYS_SUPPORTS_MULTITHREADING
548	select SYS_SUPPORTS_SMARTMIPS
549	select SYS_SUPPORTS_VPE_LOADER
550	select SYS_SUPPORTS_ZBOOT
551	select SYS_SUPPORTS_RELOCATABLE
552	select USE_OF
553	select LIBFDT
554	select ZONE_DMA32 if 64BIT
555	select BUILTIN_DTB
556	select LIBFDT
557	help
558	  This enables support for the MIPS Technologies Malta evaluation
559	  board.
560
561config MACH_PIC32
562	bool "Microchip PIC32 Family"
563	help
564	  This enables support for the Microchip PIC32 family of platforms.
565
566	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
567	  microcontrollers.
568
569config NEC_MARKEINS
570	bool "NEC EMMA2RH Mark-eins board"
571	select SOC_EMMA2RH
572	select HW_HAS_PCI
573	help
574	  This enables support for the NEC Electronics Mark-eins boards.
575
576config MACH_VR41XX
577	bool "NEC VR4100 series based machines"
578	select CEVT_R4K
579	select CSRC_R4K
580	select SYS_HAS_CPU_VR41XX
581	select SYS_SUPPORTS_MIPS16
582	select GPIOLIB
583
584config NXP_STB220
585	bool "NXP STB220 board"
586	select SOC_PNX833X
587	help
588	 Support for NXP Semiconductors STB220 Development Board.
589
590config NXP_STB225
591	bool "NXP 225 board"
592	select SOC_PNX833X
593	select SOC_PNX8335
594	help
595	 Support for NXP Semiconductors STB225 Development Board.
596
597config PMC_MSP
598	bool "PMC-Sierra MSP chipsets"
599	select CEVT_R4K
600	select CSRC_R4K
601	select DMA_NONCOHERENT
602	select SWAP_IO_SPACE
603	select NO_EXCEPT_FILL
604	select BOOT_RAW
605	select SYS_HAS_CPU_MIPS32_R1
606	select SYS_HAS_CPU_MIPS32_R2
607	select SYS_SUPPORTS_32BIT_KERNEL
608	select SYS_SUPPORTS_BIG_ENDIAN
609	select SYS_SUPPORTS_MIPS16
610	select IRQ_MIPS_CPU
611	select MIPS_DMA_DEFAULT
612	select SERIAL_8250
613	select SERIAL_8250_CONSOLE
614	select USB_EHCI_BIG_ENDIAN_MMIO
615	select USB_EHCI_BIG_ENDIAN_DESC
616	help
617	  This adds support for the PMC-Sierra family of Multi-Service
618	  Processor System-On-A-Chips.  These parts include a number
619	  of integrated peripherals, interfaces and DSPs in addition to
620	  a variety of MIPS cores.
621
622config RALINK
623	bool "Ralink based machines"
624	select CEVT_R4K
625	select CSRC_R4K
626	select BOOT_RAW
627	select DMA_NONCOHERENT
628	select IRQ_MIPS_CPU
629	select MIPS_DMA_DEFAULT
630	select USE_OF
631	select SYS_HAS_CPU_MIPS32_R1
632	select SYS_HAS_CPU_MIPS32_R2
633	select SYS_SUPPORTS_32BIT_KERNEL
634	select SYS_SUPPORTS_LITTLE_ENDIAN
635	select SYS_SUPPORTS_MIPS16
636	select SYS_HAS_EARLY_PRINTK
637	select CLKDEV_LOOKUP
638	select ARCH_HAS_RESET_CONTROLLER
639	select RESET_CONTROLLER
640
641config SGI_IP22
642	bool "SGI IP22 (Indy/Indigo2)"
643	select FW_ARC
644	select FW_ARC32
645	select ARCH_MIGHT_HAVE_PC_SERIO
646	select BOOT_ELF32
647	select CEVT_R4K
648	select CSRC_R4K
649	select DEFAULT_SGI_PARTITION
650	select DMA_NONCOHERENT
651	select HW_HAS_EISA
652	select I8253
653	select I8259
654	select IP22_CPU_SCACHE
655	select IRQ_MIPS_CPU
656	select MIPS_DMA_DEFAULT
657	select GENERIC_ISA_DMA_SUPPORT_BROKEN
658	select SGI_HAS_I8042
659	select SGI_HAS_INDYDOG
660	select SGI_HAS_HAL2
661	select SGI_HAS_SEEQ
662	select SGI_HAS_WD93
663	select SGI_HAS_ZILOG
664	select SWAP_IO_SPACE
665	select SYS_HAS_CPU_R4X00
666	select SYS_HAS_CPU_R5000
667	#
668	# Disable EARLY_PRINTK for now since it leads to overwritten prom
669	# memory during early boot on some machines.
670	#
671	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
672	# for a more details discussion
673	#
674	# select SYS_HAS_EARLY_PRINTK
675	select SYS_SUPPORTS_32BIT_KERNEL
676	select SYS_SUPPORTS_64BIT_KERNEL
677	select SYS_SUPPORTS_BIG_ENDIAN
678	select MIPS_L1_CACHE_SHIFT_7
679	help
680	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
681	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
682	  that runs on these, say Y here.
683
684config SGI_IP27
685	bool "SGI IP27 (Origin200/2000)"
686	select ARCH_HAS_PHYS_TO_DMA
687	select FW_ARC
688	select FW_ARC64
689	select BOOT_ELF64
690	select DEFAULT_SGI_PARTITION
691	select SYS_HAS_EARLY_PRINTK
692	select HW_HAS_PCI
693	select NR_CPUS_DEFAULT_64
694	select SYS_HAS_CPU_R10000
695	select SYS_SUPPORTS_64BIT_KERNEL
696	select SYS_SUPPORTS_BIG_ENDIAN
697	select SYS_SUPPORTS_NUMA
698	select SYS_SUPPORTS_SMP
699	select MIPS_L1_CACHE_SHIFT_7
700	help
701	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
702	  workstations.  To compile a Linux kernel that runs on these, say Y
703	  here.
704
705config SGI_IP28
706	bool "SGI IP28 (Indigo2 R10k)"
707	select FW_ARC
708	select FW_ARC64
709	select ARCH_MIGHT_HAVE_PC_SERIO
710	select BOOT_ELF64
711	select CEVT_R4K
712	select CSRC_R4K
713	select DEFAULT_SGI_PARTITION
714	select DMA_NONCOHERENT
715	select GENERIC_ISA_DMA_SUPPORT_BROKEN
716	select IRQ_MIPS_CPU
717	select MIPS_DMA_DEFAULT
718	select HW_HAS_EISA
719	select I8253
720	select I8259
721	select SGI_HAS_I8042
722	select SGI_HAS_INDYDOG
723	select SGI_HAS_HAL2
724	select SGI_HAS_SEEQ
725	select SGI_HAS_WD93
726	select SGI_HAS_ZILOG
727	select SWAP_IO_SPACE
728	select SYS_HAS_CPU_R10000
729	#
730	# Disable EARLY_PRINTK for now since it leads to overwritten prom
731	# memory during early boot on some machines.
732	#
733	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
734	# for a more details discussion
735	#
736	# select SYS_HAS_EARLY_PRINTK
737	select SYS_SUPPORTS_64BIT_KERNEL
738	select SYS_SUPPORTS_BIG_ENDIAN
739	select MIPS_L1_CACHE_SHIFT_7
740      help
741        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
742        kernel that runs on these, say Y here.
743
744config SGI_IP32
745	bool "SGI IP32 (O2)"
746	select FW_ARC
747	select FW_ARC32
748	select BOOT_ELF32
749	select CEVT_R4K
750	select CSRC_R4K
751	select DMA_NONCOHERENT
752	select HW_HAS_PCI
753	select IRQ_MIPS_CPU
754	select MIPS_DMA_DEFAULT
755	select R5000_CPU_SCACHE
756	select RM7000_CPU_SCACHE
757	select SYS_HAS_CPU_R5000
758	select SYS_HAS_CPU_R10000 if BROKEN
759	select SYS_HAS_CPU_RM7000
760	select SYS_HAS_CPU_NEVADA
761	select SYS_SUPPORTS_64BIT_KERNEL
762	select SYS_SUPPORTS_BIG_ENDIAN
763	help
764	  If you want this kernel to run on SGI O2 workstation, say Y here.
765
766config SIBYTE_CRHINE
767	bool "Sibyte BCM91120C-CRhine"
768	select BOOT_ELF32
769	select SIBYTE_BCM1120
770	select SWAP_IO_SPACE
771	select SYS_HAS_CPU_SB1
772	select SYS_SUPPORTS_BIG_ENDIAN
773	select SYS_SUPPORTS_LITTLE_ENDIAN
774
775config SIBYTE_CARMEL
776	bool "Sibyte BCM91120x-Carmel"
777	select BOOT_ELF32
778	select SIBYTE_BCM1120
779	select SWAP_IO_SPACE
780	select SYS_HAS_CPU_SB1
781	select SYS_SUPPORTS_BIG_ENDIAN
782	select SYS_SUPPORTS_LITTLE_ENDIAN
783
784config SIBYTE_CRHONE
785	bool "Sibyte BCM91125C-CRhone"
786	select BOOT_ELF32
787	select SIBYTE_BCM1125
788	select SWAP_IO_SPACE
789	select SYS_HAS_CPU_SB1
790	select SYS_SUPPORTS_BIG_ENDIAN
791	select SYS_SUPPORTS_HIGHMEM
792	select SYS_SUPPORTS_LITTLE_ENDIAN
793
794config SIBYTE_RHONE
795	bool "Sibyte BCM91125E-Rhone"
796	select BOOT_ELF32
797	select SIBYTE_BCM1125H
798	select SWAP_IO_SPACE
799	select SYS_HAS_CPU_SB1
800	select SYS_SUPPORTS_BIG_ENDIAN
801	select SYS_SUPPORTS_LITTLE_ENDIAN
802
803config SIBYTE_SWARM
804	bool "Sibyte BCM91250A-SWARM"
805	select BOOT_ELF32
806	select HAVE_PATA_PLATFORM
807	select SIBYTE_SB1250
808	select SWAP_IO_SPACE
809	select SYS_HAS_CPU_SB1
810	select SYS_SUPPORTS_BIG_ENDIAN
811	select SYS_SUPPORTS_HIGHMEM
812	select SYS_SUPPORTS_LITTLE_ENDIAN
813	select ZONE_DMA32 if 64BIT
814
815config SIBYTE_LITTLESUR
816	bool "Sibyte BCM91250C2-LittleSur"
817	select BOOT_ELF32
818	select HAVE_PATA_PLATFORM
819	select SIBYTE_SB1250
820	select SWAP_IO_SPACE
821	select SYS_HAS_CPU_SB1
822	select SYS_SUPPORTS_BIG_ENDIAN
823	select SYS_SUPPORTS_HIGHMEM
824	select SYS_SUPPORTS_LITTLE_ENDIAN
825
826config SIBYTE_SENTOSA
827	bool "Sibyte BCM91250E-Sentosa"
828	select BOOT_ELF32
829	select SIBYTE_SB1250
830	select SWAP_IO_SPACE
831	select SYS_HAS_CPU_SB1
832	select SYS_SUPPORTS_BIG_ENDIAN
833	select SYS_SUPPORTS_LITTLE_ENDIAN
834
835config SIBYTE_BIGSUR
836	bool "Sibyte BCM91480B-BigSur"
837	select BOOT_ELF32
838	select NR_CPUS_DEFAULT_4
839	select SIBYTE_BCM1x80
840	select SWAP_IO_SPACE
841	select SYS_HAS_CPU_SB1
842	select SYS_SUPPORTS_BIG_ENDIAN
843	select SYS_SUPPORTS_HIGHMEM
844	select SYS_SUPPORTS_LITTLE_ENDIAN
845	select ZONE_DMA32 if 64BIT
846
847config SNI_RM
848	bool "SNI RM200/300/400"
849	select FW_ARC if CPU_LITTLE_ENDIAN
850	select FW_ARC32 if CPU_LITTLE_ENDIAN
851	select FW_SNIPROM if CPU_BIG_ENDIAN
852	select ARCH_MAY_HAVE_PC_FDC
853	select ARCH_MIGHT_HAVE_PC_PARPORT
854	select ARCH_MIGHT_HAVE_PC_SERIO
855	select BOOT_ELF32
856	select CEVT_R4K
857	select CSRC_R4K
858	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
859	select DMA_NONCOHERENT
860	select GENERIC_ISA_DMA
861	select HAVE_PCSPKR_PLATFORM
862	select HW_HAS_EISA
863	select HW_HAS_PCI
864	select IRQ_MIPS_CPU
865	select I8253
866	select I8259
867	select ISA
868	select MIPS_DMA_DEFAULT
869	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
870	select SYS_HAS_CPU_R4X00
871	select SYS_HAS_CPU_R5000
872	select SYS_HAS_CPU_R10000
873	select R5000_CPU_SCACHE
874	select SYS_HAS_EARLY_PRINTK
875	select SYS_SUPPORTS_32BIT_KERNEL
876	select SYS_SUPPORTS_64BIT_KERNEL
877	select SYS_SUPPORTS_BIG_ENDIAN
878	select SYS_SUPPORTS_HIGHMEM
879	select SYS_SUPPORTS_LITTLE_ENDIAN
880	help
881	  The SNI RM200/300/400 are MIPS-based machines manufactured by
882	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
883	  Technology and now in turn merged with Fujitsu.  Say Y here to
884	  support this machine type.
885
886config MACH_TX39XX
887	bool "Toshiba TX39 series based machines"
888
889config MACH_TX49XX
890	bool "Toshiba TX49 series based machines"
891
892config MIKROTIK_RB532
893	bool "Mikrotik RB532 boards"
894	select CEVT_R4K
895	select CSRC_R4K
896	select DMA_NONCOHERENT
897	select HW_HAS_PCI
898	select IRQ_MIPS_CPU
899	select MIPS_DMA_DEFAULT
900	select SYS_HAS_CPU_MIPS32_R1
901	select SYS_SUPPORTS_32BIT_KERNEL
902	select SYS_SUPPORTS_LITTLE_ENDIAN
903	select SWAP_IO_SPACE
904	select BOOT_RAW
905	select GPIOLIB
906	select MIPS_L1_CACHE_SHIFT_4
907	help
908	  Support the Mikrotik(tm) RouterBoard 532 series,
909	  based on the IDT RC32434 SoC.
910
911config CAVIUM_OCTEON_SOC
912	bool "Cavium Networks Octeon SoC based boards"
913	select CEVT_R4K
914	select ARCH_HAS_PHYS_TO_DMA
915	select PHYS_ADDR_T_64BIT
916	select SYS_SUPPORTS_64BIT_KERNEL
917	select SYS_SUPPORTS_BIG_ENDIAN
918	select EDAC_SUPPORT
919	select EDAC_ATOMIC_SCRUB
920	select SYS_SUPPORTS_LITTLE_ENDIAN
921	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
922	select SYS_HAS_EARLY_PRINTK
923	select SYS_HAS_CPU_CAVIUM_OCTEON
924	select HW_HAS_PCI
925	select ZONE_DMA32
926	select HOLES_IN_ZONE
927	select GPIOLIB
928	select LIBFDT
929	select USE_OF
930	select ARCH_SPARSEMEM_ENABLE
931	select SYS_SUPPORTS_SMP
932	select NR_CPUS_DEFAULT_64
933	select MIPS_NR_CPU_NR_MAP_1024
934	select BUILTIN_DTB
935	select MTD_COMPLEX_MAPPINGS
936	select SWIOTLB
937	select SYS_SUPPORTS_RELOCATABLE
938	help
939	  This option supports all of the Octeon reference boards from Cavium
940	  Networks. It builds a kernel that dynamically determines the Octeon
941	  CPU type and supports all known board reference implementations.
942	  Some of the supported boards are:
943		EBT3000
944		EBH3000
945		EBH3100
946		Thunder
947		Kodama
948		Hikari
949	  Say Y here for most Octeon reference boards.
950
951config NLM_XLR_BOARD
952	bool "Netlogic XLR/XLS based systems"
953	select BOOT_ELF32
954	select NLM_COMMON
955	select SYS_HAS_CPU_XLR
956	select SYS_SUPPORTS_SMP
957	select HW_HAS_PCI
958	select SWAP_IO_SPACE
959	select SYS_SUPPORTS_32BIT_KERNEL
960	select SYS_SUPPORTS_64BIT_KERNEL
961	select PHYS_ADDR_T_64BIT
962	select SYS_SUPPORTS_BIG_ENDIAN
963	select SYS_SUPPORTS_HIGHMEM
964	select NR_CPUS_DEFAULT_32
965	select CEVT_R4K
966	select CSRC_R4K
967	select IRQ_MIPS_CPU
968	select ZONE_DMA32 if 64BIT
969	select SYNC_R4K
970	select SYS_HAS_EARLY_PRINTK
971	select SYS_SUPPORTS_ZBOOT
972	select SYS_SUPPORTS_ZBOOT_UART16550
973	help
974	  Support for systems based on Netlogic XLR and XLS processors.
975	  Say Y here if you have a XLR or XLS based board.
976
977config NLM_XLP_BOARD
978	bool "Netlogic XLP based systems"
979	select BOOT_ELF32
980	select NLM_COMMON
981	select SYS_HAS_CPU_XLP
982	select SYS_SUPPORTS_SMP
983	select HW_HAS_PCI
984	select SYS_SUPPORTS_32BIT_KERNEL
985	select SYS_SUPPORTS_64BIT_KERNEL
986	select PHYS_ADDR_T_64BIT
987	select GPIOLIB
988	select SYS_SUPPORTS_BIG_ENDIAN
989	select SYS_SUPPORTS_LITTLE_ENDIAN
990	select SYS_SUPPORTS_HIGHMEM
991	select NR_CPUS_DEFAULT_32
992	select CEVT_R4K
993	select CSRC_R4K
994	select IRQ_MIPS_CPU
995	select ZONE_DMA32 if 64BIT
996	select SYNC_R4K
997	select SYS_HAS_EARLY_PRINTK
998	select USE_OF
999	select SYS_SUPPORTS_ZBOOT
1000	select SYS_SUPPORTS_ZBOOT_UART16550
1001	help
1002	  This board is based on Netlogic XLP Processor.
1003	  Say Y here if you have a XLP based board.
1004
1005config MIPS_PARAVIRT
1006	bool "Para-Virtualized guest system"
1007	select CEVT_R4K
1008	select CSRC_R4K
1009	select SYS_SUPPORTS_64BIT_KERNEL
1010	select SYS_SUPPORTS_32BIT_KERNEL
1011	select SYS_SUPPORTS_BIG_ENDIAN
1012	select SYS_SUPPORTS_SMP
1013	select NR_CPUS_DEFAULT_4
1014	select SYS_HAS_EARLY_PRINTK
1015	select SYS_HAS_CPU_MIPS32_R2
1016	select SYS_HAS_CPU_MIPS64_R2
1017	select SYS_HAS_CPU_CAVIUM_OCTEON
1018	select HW_HAS_PCI
1019	select SWAP_IO_SPACE
1020	help
1021	  This option supports guest running under ????
1022
1023endchoice
1024
1025source "arch/mips/alchemy/Kconfig"
1026source "arch/mips/ath25/Kconfig"
1027source "arch/mips/ath79/Kconfig"
1028source "arch/mips/bcm47xx/Kconfig"
1029source "arch/mips/bcm63xx/Kconfig"
1030source "arch/mips/bmips/Kconfig"
1031source "arch/mips/generic/Kconfig"
1032source "arch/mips/jazz/Kconfig"
1033source "arch/mips/jz4740/Kconfig"
1034source "arch/mips/lantiq/Kconfig"
1035source "arch/mips/lasat/Kconfig"
1036source "arch/mips/pic32/Kconfig"
1037source "arch/mips/pistachio/Kconfig"
1038source "arch/mips/pmcs-msp71xx/Kconfig"
1039source "arch/mips/ralink/Kconfig"
1040source "arch/mips/sgi-ip27/Kconfig"
1041source "arch/mips/sibyte/Kconfig"
1042source "arch/mips/txx9/Kconfig"
1043source "arch/mips/vr41xx/Kconfig"
1044source "arch/mips/cavium-octeon/Kconfig"
1045source "arch/mips/loongson32/Kconfig"
1046source "arch/mips/loongson64/Kconfig"
1047source "arch/mips/netlogic/Kconfig"
1048source "arch/mips/paravirt/Kconfig"
1049
1050endmenu
1051
1052config RWSEM_GENERIC_SPINLOCK
1053	bool
1054	default y
1055
1056config RWSEM_XCHGADD_ALGORITHM
1057	bool
1058
1059config GENERIC_HWEIGHT
1060	bool
1061	default y
1062
1063config GENERIC_CALIBRATE_DELAY
1064	bool
1065	default y
1066
1067config SCHED_OMIT_FRAME_POINTER
1068	bool
1069	default y
1070
1071#
1072# Select some configuration options automatically based on user selections.
1073#
1074config FW_ARC
1075	bool
1076
1077config ARCH_MAY_HAVE_PC_FDC
1078	bool
1079
1080config BOOT_RAW
1081	bool
1082
1083config CEVT_BCM1480
1084	bool
1085
1086config CEVT_DS1287
1087	bool
1088
1089config CEVT_GT641XX
1090	bool
1091
1092config CEVT_R4K
1093	bool
1094
1095config CEVT_SB1250
1096	bool
1097
1098config CEVT_TXX9
1099	bool
1100
1101config CSRC_BCM1480
1102	bool
1103
1104config CSRC_IOASIC
1105	bool
1106
1107config CSRC_R4K
1108	bool
1109
1110config CSRC_SB1250
1111	bool
1112
1113config MIPS_CLOCK_VSYSCALL
1114	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1115
1116config GPIO_TXX9
1117	select GPIOLIB
1118	bool
1119
1120config FW_CFE
1121	bool
1122
1123config ARCH_SUPPORTS_UPROBES
1124	bool
1125
1126config DMA_MAYBE_COHERENT
1127	select DMA_NONCOHERENT
1128	bool
1129
1130config DMA_PERDEV_COHERENT
1131	bool
1132	select DMA_MAYBE_COHERENT
1133
1134config DMA_NONCOHERENT
1135	bool
1136	select NEED_DMA_MAP_STATE
1137
1138config SYS_HAS_EARLY_PRINTK
1139	bool
1140
1141config SYS_SUPPORTS_HOTPLUG_CPU
1142	bool
1143
1144config MIPS_BONITO64
1145	bool
1146
1147config MIPS_MSC
1148	bool
1149
1150config MIPS_NILE4
1151	bool
1152
1153config SYNC_R4K
1154	bool
1155
1156config MIPS_MACHINE
1157	def_bool n
1158
1159config NO_IOPORT_MAP
1160	def_bool n
1161
1162config GENERIC_CSUM
1163	bool
1164
1165config GENERIC_ISA_DMA
1166	bool
1167	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1168	select ISA_DMA_API
1169
1170config GENERIC_ISA_DMA_SUPPORT_BROKEN
1171	bool
1172	select GENERIC_ISA_DMA
1173
1174config ISA_DMA_API
1175	bool
1176
1177config HOLES_IN_ZONE
1178	bool
1179
1180config SYS_SUPPORTS_RELOCATABLE
1181	bool
1182	help
1183	 Selected if the platform supports relocating the kernel.
1184	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1185	 to allow access to command line and entropy sources.
1186
1187config MIPS_CBPF_JIT
1188	def_bool y
1189	depends on BPF_JIT && HAVE_CBPF_JIT
1190
1191config MIPS_EBPF_JIT
1192	def_bool y
1193	depends on BPF_JIT && HAVE_EBPF_JIT
1194
1195
1196#
1197# Endianness selection.  Sufficiently obscure so many users don't know what to
1198# answer,so we try hard to limit the available choices.  Also the use of a
1199# choice statement should be more obvious to the user.
1200#
1201choice
1202	prompt "Endianness selection"
1203	help
1204	  Some MIPS machines can be configured for either little or big endian
1205	  byte order. These modes require different kernels and a different
1206	  Linux distribution.  In general there is one preferred byteorder for a
1207	  particular system but some systems are just as commonly used in the
1208	  one or the other endianness.
1209
1210config CPU_BIG_ENDIAN
1211	bool "Big endian"
1212	depends on SYS_SUPPORTS_BIG_ENDIAN
1213
1214config CPU_LITTLE_ENDIAN
1215	bool "Little endian"
1216	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1217
1218endchoice
1219
1220config EXPORT_UASM
1221	bool
1222
1223config SYS_SUPPORTS_APM_EMULATION
1224	bool
1225
1226config SYS_SUPPORTS_BIG_ENDIAN
1227	bool
1228
1229config SYS_SUPPORTS_LITTLE_ENDIAN
1230	bool
1231
1232config SYS_SUPPORTS_HUGETLBFS
1233	bool
1234	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1235	default y
1236
1237config MIPS_HUGE_TLB_SUPPORT
1238	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1239
1240config IRQ_CPU_RM7K
1241	bool
1242
1243config IRQ_MSP_SLP
1244	bool
1245
1246config IRQ_MSP_CIC
1247	bool
1248
1249config IRQ_TXX9
1250	bool
1251
1252config IRQ_GT641XX
1253	bool
1254
1255config PCI_GT64XXX_PCI0
1256	bool
1257
1258config NO_EXCEPT_FILL
1259	bool
1260
1261config SOC_EMMA2RH
1262	bool
1263	select CEVT_R4K
1264	select CSRC_R4K
1265	select DMA_NONCOHERENT
1266	select IRQ_MIPS_CPU
1267	select SWAP_IO_SPACE
1268	select SYS_HAS_CPU_R5500
1269	select SYS_SUPPORTS_32BIT_KERNEL
1270	select SYS_SUPPORTS_64BIT_KERNEL
1271	select SYS_SUPPORTS_BIG_ENDIAN
1272
1273config SOC_PNX833X
1274	bool
1275	select CEVT_R4K
1276	select CSRC_R4K
1277	select IRQ_MIPS_CPU
1278	select DMA_NONCOHERENT
1279	select SYS_HAS_CPU_MIPS32_R2
1280	select SYS_SUPPORTS_32BIT_KERNEL
1281	select SYS_SUPPORTS_LITTLE_ENDIAN
1282	select SYS_SUPPORTS_BIG_ENDIAN
1283	select SYS_SUPPORTS_MIPS16
1284	select CPU_MIPSR2_IRQ_VI
1285
1286config SOC_PNX8335
1287	bool
1288	select SOC_PNX833X
1289
1290config MIPS_SPRAM
1291	bool
1292
1293config SWAP_IO_SPACE
1294	bool
1295
1296config SGI_HAS_INDYDOG
1297	bool
1298
1299config SGI_HAS_HAL2
1300	bool
1301
1302config SGI_HAS_SEEQ
1303	bool
1304
1305config SGI_HAS_WD93
1306	bool
1307
1308config SGI_HAS_ZILOG
1309	bool
1310
1311config SGI_HAS_I8042
1312	bool
1313
1314config DEFAULT_SGI_PARTITION
1315	bool
1316
1317config FW_ARC32
1318	bool
1319
1320config FW_SNIPROM
1321	bool
1322
1323config BOOT_ELF32
1324	bool
1325
1326config MIPS_L1_CACHE_SHIFT_4
1327	bool
1328
1329config MIPS_L1_CACHE_SHIFT_5
1330	bool
1331
1332config MIPS_L1_CACHE_SHIFT_6
1333	bool
1334
1335config MIPS_L1_CACHE_SHIFT_7
1336	bool
1337
1338config MIPS_L1_CACHE_SHIFT
1339	int
1340	default "7" if MIPS_L1_CACHE_SHIFT_7
1341	default "6" if MIPS_L1_CACHE_SHIFT_6
1342	default "5" if MIPS_L1_CACHE_SHIFT_5
1343	default "4" if MIPS_L1_CACHE_SHIFT_4
1344	default "5"
1345
1346config HAVE_STD_PC_SERIAL_PORT
1347	bool
1348
1349config ARC_CONSOLE
1350	bool "ARC console support"
1351	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1352
1353config ARC_MEMORY
1354	bool
1355	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1356	default y
1357
1358config ARC_PROMLIB
1359	bool
1360	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1361	default y
1362
1363config FW_ARC64
1364	bool
1365
1366config BOOT_ELF64
1367	bool
1368
1369menu "CPU selection"
1370
1371choice
1372	prompt "CPU type"
1373	default CPU_R4X00
1374
1375config CPU_LOONGSON3
1376	bool "Loongson 3 CPU"
1377	depends on SYS_HAS_CPU_LOONGSON3
1378	select ARCH_HAS_PHYS_TO_DMA
1379	select CPU_SUPPORTS_64BIT_KERNEL
1380	select CPU_SUPPORTS_HIGHMEM
1381	select CPU_SUPPORTS_HUGEPAGES
1382	select WEAK_ORDERING
1383	select WEAK_REORDERING_BEYOND_LLSC
1384	select MIPS_PGD_C0_CONTEXT
1385	select MIPS_L1_CACHE_SHIFT_6
1386	select GPIOLIB
1387	select SWIOTLB
1388	help
1389		The Loongson 3 processor implements the MIPS64R2 instruction
1390		set with many extensions.
1391
1392config LOONGSON3_ENHANCEMENT
1393	bool "New Loongson 3 CPU Enhancements"
1394	default n
1395	select CPU_MIPSR2
1396	select CPU_HAS_PREFETCH
1397	depends on CPU_LOONGSON3
1398	help
1399	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1400	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1401	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1402	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1403	  Fast TLB refill support, etc.
1404
1405	  This option enable those enhancements which are not probed at run
1406	  time. If you want a generic kernel to run on all Loongson 3 machines,
1407	  please say 'N' here. If you want a high-performance kernel to run on
1408	  new Loongson 3 machines only, please say 'Y' here.
1409
1410config CPU_LOONGSON2E
1411	bool "Loongson 2E"
1412	depends on SYS_HAS_CPU_LOONGSON2E
1413	select CPU_LOONGSON2
1414	help
1415	  The Loongson 2E processor implements the MIPS III instruction set
1416	  with many extensions.
1417
1418	  It has an internal FPGA northbridge, which is compatible to
1419	  bonito64.
1420
1421config CPU_LOONGSON2F
1422	bool "Loongson 2F"
1423	depends on SYS_HAS_CPU_LOONGSON2F
1424	select CPU_LOONGSON2
1425	select GPIOLIB
1426	help
1427	  The Loongson 2F processor implements the MIPS III instruction set
1428	  with many extensions.
1429
1430	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1431	  have a similar programming interface with FPGA northbridge used in
1432	  Loongson2E.
1433
1434config CPU_LOONGSON1B
1435	bool "Loongson 1B"
1436	depends on SYS_HAS_CPU_LOONGSON1B
1437	select CPU_LOONGSON1
1438	select LEDS_GPIO_REGISTER
1439	help
1440	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1441	  release 2 instruction set.
1442
1443config CPU_LOONGSON1C
1444	bool "Loongson 1C"
1445	depends on SYS_HAS_CPU_LOONGSON1C
1446	select CPU_LOONGSON1
1447	select LEDS_GPIO_REGISTER
1448	help
1449	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1450	  release 2 instruction set.
1451
1452config CPU_MIPS32_R1
1453	bool "MIPS32 Release 1"
1454	depends on SYS_HAS_CPU_MIPS32_R1
1455	select CPU_HAS_PREFETCH
1456	select CPU_SUPPORTS_32BIT_KERNEL
1457	select CPU_SUPPORTS_HIGHMEM
1458	help
1459	  Choose this option to build a kernel for release 1 or later of the
1460	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1461	  MIPS processor are based on a MIPS32 processor.  If you know the
1462	  specific type of processor in your system, choose those that one
1463	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1464	  Release 2 of the MIPS32 architecture is available since several
1465	  years so chances are you even have a MIPS32 Release 2 processor
1466	  in which case you should choose CPU_MIPS32_R2 instead for better
1467	  performance.
1468
1469config CPU_MIPS32_R2
1470	bool "MIPS32 Release 2"
1471	depends on SYS_HAS_CPU_MIPS32_R2
1472	select CPU_HAS_PREFETCH
1473	select CPU_SUPPORTS_32BIT_KERNEL
1474	select CPU_SUPPORTS_HIGHMEM
1475	select CPU_SUPPORTS_MSA
1476	select HAVE_KVM
1477	help
1478	  Choose this option to build a kernel for release 2 or later of the
1479	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1480	  MIPS processor are based on a MIPS32 processor.  If you know the
1481	  specific type of processor in your system, choose those that one
1482	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1483
1484config CPU_MIPS32_R6
1485	bool "MIPS32 Release 6"
1486	depends on SYS_HAS_CPU_MIPS32_R6
1487	select CPU_HAS_PREFETCH
1488	select CPU_SUPPORTS_32BIT_KERNEL
1489	select CPU_SUPPORTS_HIGHMEM
1490	select CPU_SUPPORTS_MSA
1491	select GENERIC_CSUM
1492	select HAVE_KVM
1493	select MIPS_O32_FP64_SUPPORT
1494	help
1495	  Choose this option to build a kernel for release 6 or later of the
1496	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1497	  family, are based on a MIPS32r6 processor. If you own an older
1498	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1499
1500config CPU_MIPS64_R1
1501	bool "MIPS64 Release 1"
1502	depends on SYS_HAS_CPU_MIPS64_R1
1503	select CPU_HAS_PREFETCH
1504	select CPU_SUPPORTS_32BIT_KERNEL
1505	select CPU_SUPPORTS_64BIT_KERNEL
1506	select CPU_SUPPORTS_HIGHMEM
1507	select CPU_SUPPORTS_HUGEPAGES
1508	help
1509	  Choose this option to build a kernel for release 1 or later of the
1510	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1511	  MIPS processor are based on a MIPS64 processor.  If you know the
1512	  specific type of processor in your system, choose those that one
1513	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1514	  Release 2 of the MIPS64 architecture is available since several
1515	  years so chances are you even have a MIPS64 Release 2 processor
1516	  in which case you should choose CPU_MIPS64_R2 instead for better
1517	  performance.
1518
1519config CPU_MIPS64_R2
1520	bool "MIPS64 Release 2"
1521	depends on SYS_HAS_CPU_MIPS64_R2
1522	select CPU_HAS_PREFETCH
1523	select CPU_SUPPORTS_32BIT_KERNEL
1524	select CPU_SUPPORTS_64BIT_KERNEL
1525	select CPU_SUPPORTS_HIGHMEM
1526	select CPU_SUPPORTS_HUGEPAGES
1527	select CPU_SUPPORTS_MSA
1528	select HAVE_KVM
1529	help
1530	  Choose this option to build a kernel for release 2 or later of the
1531	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1532	  MIPS processor are based on a MIPS64 processor.  If you know the
1533	  specific type of processor in your system, choose those that one
1534	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1535
1536config CPU_MIPS64_R6
1537	bool "MIPS64 Release 6"
1538	depends on SYS_HAS_CPU_MIPS64_R6
1539	select CPU_HAS_PREFETCH
1540	select CPU_SUPPORTS_32BIT_KERNEL
1541	select CPU_SUPPORTS_64BIT_KERNEL
1542	select CPU_SUPPORTS_HIGHMEM
1543	select CPU_SUPPORTS_MSA
1544	select GENERIC_CSUM
1545	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1546	select HAVE_KVM
1547	help
1548	  Choose this option to build a kernel for release 6 or later of the
1549	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1550	  family, are based on a MIPS64r6 processor. If you own an older
1551	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1552
1553config CPU_R3000
1554	bool "R3000"
1555	depends on SYS_HAS_CPU_R3000
1556	select CPU_HAS_WB
1557	select CPU_SUPPORTS_32BIT_KERNEL
1558	select CPU_SUPPORTS_HIGHMEM
1559	help
1560	  Please make sure to pick the right CPU type. Linux/MIPS is not
1561	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1562	  *not* work on R4000 machines and vice versa.  However, since most
1563	  of the supported machines have an R4000 (or similar) CPU, R4x00
1564	  might be a safe bet.  If the resulting kernel does not work,
1565	  try to recompile with R3000.
1566
1567config CPU_TX39XX
1568	bool "R39XX"
1569	depends on SYS_HAS_CPU_TX39XX
1570	select CPU_SUPPORTS_32BIT_KERNEL
1571
1572config CPU_VR41XX
1573	bool "R41xx"
1574	depends on SYS_HAS_CPU_VR41XX
1575	select CPU_SUPPORTS_32BIT_KERNEL
1576	select CPU_SUPPORTS_64BIT_KERNEL
1577	help
1578	  The options selects support for the NEC VR4100 series of processors.
1579	  Only choose this option if you have one of these processors as a
1580	  kernel built with this option will not run on any other type of
1581	  processor or vice versa.
1582
1583config CPU_R4300
1584	bool "R4300"
1585	depends on SYS_HAS_CPU_R4300
1586	select CPU_SUPPORTS_32BIT_KERNEL
1587	select CPU_SUPPORTS_64BIT_KERNEL
1588	help
1589	  MIPS Technologies R4300-series processors.
1590
1591config CPU_R4X00
1592	bool "R4x00"
1593	depends on SYS_HAS_CPU_R4X00
1594	select CPU_SUPPORTS_32BIT_KERNEL
1595	select CPU_SUPPORTS_64BIT_KERNEL
1596	select CPU_SUPPORTS_HUGEPAGES
1597	help
1598	  MIPS Technologies R4000-series processors other than 4300, including
1599	  the R4000, R4400, R4600, and 4700.
1600
1601config CPU_TX49XX
1602	bool "R49XX"
1603	depends on SYS_HAS_CPU_TX49XX
1604	select CPU_HAS_PREFETCH
1605	select CPU_SUPPORTS_32BIT_KERNEL
1606	select CPU_SUPPORTS_64BIT_KERNEL
1607	select CPU_SUPPORTS_HUGEPAGES
1608
1609config CPU_R5000
1610	bool "R5000"
1611	depends on SYS_HAS_CPU_R5000
1612	select CPU_SUPPORTS_32BIT_KERNEL
1613	select CPU_SUPPORTS_64BIT_KERNEL
1614	select CPU_SUPPORTS_HUGEPAGES
1615	help
1616	  MIPS Technologies R5000-series processors other than the Nevada.
1617
1618config CPU_R5432
1619	bool "R5432"
1620	depends on SYS_HAS_CPU_R5432
1621	select CPU_SUPPORTS_32BIT_KERNEL
1622	select CPU_SUPPORTS_64BIT_KERNEL
1623	select CPU_SUPPORTS_HUGEPAGES
1624
1625config CPU_R5500
1626	bool "R5500"
1627	depends on SYS_HAS_CPU_R5500
1628	select CPU_SUPPORTS_32BIT_KERNEL
1629	select CPU_SUPPORTS_64BIT_KERNEL
1630	select CPU_SUPPORTS_HUGEPAGES
1631	help
1632	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1633	  instruction set.
1634
1635config CPU_NEVADA
1636	bool "RM52xx"
1637	depends on SYS_HAS_CPU_NEVADA
1638	select CPU_SUPPORTS_32BIT_KERNEL
1639	select CPU_SUPPORTS_64BIT_KERNEL
1640	select CPU_SUPPORTS_HUGEPAGES
1641	help
1642	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1643
1644config CPU_R8000
1645	bool "R8000"
1646	depends on SYS_HAS_CPU_R8000
1647	select CPU_HAS_PREFETCH
1648	select CPU_SUPPORTS_64BIT_KERNEL
1649	help
1650	  MIPS Technologies R8000 processors.  Note these processors are
1651	  uncommon and the support for them is incomplete.
1652
1653config CPU_R10000
1654	bool "R10000"
1655	depends on SYS_HAS_CPU_R10000
1656	select CPU_HAS_PREFETCH
1657	select CPU_SUPPORTS_32BIT_KERNEL
1658	select CPU_SUPPORTS_64BIT_KERNEL
1659	select CPU_SUPPORTS_HIGHMEM
1660	select CPU_SUPPORTS_HUGEPAGES
1661	help
1662	  MIPS Technologies R10000-series processors.
1663
1664config CPU_RM7000
1665	bool "RM7000"
1666	depends on SYS_HAS_CPU_RM7000
1667	select CPU_HAS_PREFETCH
1668	select CPU_SUPPORTS_32BIT_KERNEL
1669	select CPU_SUPPORTS_64BIT_KERNEL
1670	select CPU_SUPPORTS_HIGHMEM
1671	select CPU_SUPPORTS_HUGEPAGES
1672
1673config CPU_SB1
1674	bool "SB1"
1675	depends on SYS_HAS_CPU_SB1
1676	select CPU_SUPPORTS_32BIT_KERNEL
1677	select CPU_SUPPORTS_64BIT_KERNEL
1678	select CPU_SUPPORTS_HIGHMEM
1679	select CPU_SUPPORTS_HUGEPAGES
1680	select WEAK_ORDERING
1681
1682config CPU_CAVIUM_OCTEON
1683	bool "Cavium Octeon processor"
1684	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1685	select CPU_HAS_PREFETCH
1686	select CPU_SUPPORTS_64BIT_KERNEL
1687	select WEAK_ORDERING
1688	select CPU_SUPPORTS_HIGHMEM
1689	select CPU_SUPPORTS_HUGEPAGES
1690	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1691	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1692	select MIPS_L1_CACHE_SHIFT_7
1693	select HAVE_KVM
1694	help
1695	  The Cavium Octeon processor is a highly integrated chip containing
1696	  many ethernet hardware widgets for networking tasks. The processor
1697	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1698	  Full details can be found at http://www.caviumnetworks.com.
1699
1700config CPU_BMIPS
1701	bool "Broadcom BMIPS"
1702	depends on SYS_HAS_CPU_BMIPS
1703	select CPU_MIPS32
1704	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1705	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1706	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1707	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1708	select CPU_SUPPORTS_32BIT_KERNEL
1709	select DMA_NONCOHERENT
1710	select IRQ_MIPS_CPU
1711	select SWAP_IO_SPACE
1712	select WEAK_ORDERING
1713	select CPU_SUPPORTS_HIGHMEM
1714	select CPU_HAS_PREFETCH
1715	select CPU_SUPPORTS_CPUFREQ
1716	select MIPS_EXTERNAL_TIMER
1717	help
1718	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1719
1720config CPU_XLR
1721	bool "Netlogic XLR SoC"
1722	depends on SYS_HAS_CPU_XLR
1723	select CPU_SUPPORTS_32BIT_KERNEL
1724	select CPU_SUPPORTS_64BIT_KERNEL
1725	select CPU_SUPPORTS_HIGHMEM
1726	select CPU_SUPPORTS_HUGEPAGES
1727	select WEAK_ORDERING
1728	select WEAK_REORDERING_BEYOND_LLSC
1729	help
1730	  Netlogic Microsystems XLR/XLS processors.
1731
1732config CPU_XLP
1733	bool "Netlogic XLP SoC"
1734	depends on SYS_HAS_CPU_XLP
1735	select CPU_SUPPORTS_32BIT_KERNEL
1736	select CPU_SUPPORTS_64BIT_KERNEL
1737	select CPU_SUPPORTS_HIGHMEM
1738	select WEAK_ORDERING
1739	select WEAK_REORDERING_BEYOND_LLSC
1740	select CPU_HAS_PREFETCH
1741	select CPU_MIPSR2
1742	select CPU_SUPPORTS_HUGEPAGES
1743	select MIPS_ASID_BITS_VARIABLE
1744	help
1745	  Netlogic Microsystems XLP processors.
1746endchoice
1747
1748config CPU_MIPS32_3_5_FEATURES
1749	bool "MIPS32 Release 3.5 Features"
1750	depends on SYS_HAS_CPU_MIPS32_R3_5
1751	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1752	help
1753	  Choose this option to build a kernel for release 2 or later of the
1754	  MIPS32 architecture including features from the 3.5 release such as
1755	  support for Enhanced Virtual Addressing (EVA).
1756
1757config CPU_MIPS32_3_5_EVA
1758	bool "Enhanced Virtual Addressing (EVA)"
1759	depends on CPU_MIPS32_3_5_FEATURES
1760	select EVA
1761	default y
1762	help
1763	  Choose this option if you want to enable the Enhanced Virtual
1764	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1765	  One of its primary benefits is an increase in the maximum size
1766	  of lowmem (up to 3GB). If unsure, say 'N' here.
1767
1768config CPU_MIPS32_R5_FEATURES
1769	bool "MIPS32 Release 5 Features"
1770	depends on SYS_HAS_CPU_MIPS32_R5
1771	depends on CPU_MIPS32_R2
1772	help
1773	  Choose this option to build a kernel for release 2 or later of the
1774	  MIPS32 architecture including features from release 5 such as
1775	  support for Extended Physical Addressing (XPA).
1776
1777config CPU_MIPS32_R5_XPA
1778	bool "Extended Physical Addressing (XPA)"
1779	depends on CPU_MIPS32_R5_FEATURES
1780	depends on !EVA
1781	depends on !PAGE_SIZE_4KB
1782	depends on SYS_SUPPORTS_HIGHMEM
1783	select XPA
1784	select HIGHMEM
1785	select PHYS_ADDR_T_64BIT
1786	default n
1787	help
1788	  Choose this option if you want to enable the Extended Physical
1789	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1790	  benefit is to increase physical addressing equal to or greater
1791	  than 40 bits. Note that this has the side effect of turning on
1792	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1793	  If unsure, say 'N' here.
1794
1795if CPU_LOONGSON2F
1796config CPU_NOP_WORKAROUNDS
1797	bool
1798
1799config CPU_JUMP_WORKAROUNDS
1800	bool
1801
1802config CPU_LOONGSON2F_WORKAROUNDS
1803	bool "Loongson 2F Workarounds"
1804	default y
1805	select CPU_NOP_WORKAROUNDS
1806	select CPU_JUMP_WORKAROUNDS
1807	help
1808	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1809	  require workarounds.  Without workarounds the system may hang
1810	  unexpectedly.  For more information please refer to the gas
1811	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1812
1813	  Loongson 2F03 and later have fixed these issues and no workarounds
1814	  are needed.  The workarounds have no significant side effect on them
1815	  but may decrease the performance of the system so this option should
1816	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1817	  systems.
1818
1819	  If unsure, please say Y.
1820endif # CPU_LOONGSON2F
1821
1822config SYS_SUPPORTS_ZBOOT
1823	bool
1824	select HAVE_KERNEL_GZIP
1825	select HAVE_KERNEL_BZIP2
1826	select HAVE_KERNEL_LZ4
1827	select HAVE_KERNEL_LZMA
1828	select HAVE_KERNEL_LZO
1829	select HAVE_KERNEL_XZ
1830
1831config SYS_SUPPORTS_ZBOOT_UART16550
1832	bool
1833	select SYS_SUPPORTS_ZBOOT
1834
1835config SYS_SUPPORTS_ZBOOT_UART_PROM
1836	bool
1837	select SYS_SUPPORTS_ZBOOT
1838
1839config CPU_LOONGSON2
1840	bool
1841	select CPU_SUPPORTS_32BIT_KERNEL
1842	select CPU_SUPPORTS_64BIT_KERNEL
1843	select CPU_SUPPORTS_HIGHMEM
1844	select CPU_SUPPORTS_HUGEPAGES
1845
1846config CPU_LOONGSON1
1847	bool
1848	select CPU_MIPS32
1849	select CPU_MIPSR2
1850	select CPU_HAS_PREFETCH
1851	select CPU_SUPPORTS_32BIT_KERNEL
1852	select CPU_SUPPORTS_HIGHMEM
1853	select CPU_SUPPORTS_CPUFREQ
1854
1855config CPU_BMIPS32_3300
1856	select SMP_UP if SMP
1857	bool
1858
1859config CPU_BMIPS4350
1860	bool
1861	select SYS_SUPPORTS_SMP
1862	select SYS_SUPPORTS_HOTPLUG_CPU
1863
1864config CPU_BMIPS4380
1865	bool
1866	select MIPS_L1_CACHE_SHIFT_6
1867	select SYS_SUPPORTS_SMP
1868	select SYS_SUPPORTS_HOTPLUG_CPU
1869	select CPU_HAS_RIXI
1870
1871config CPU_BMIPS5000
1872	bool
1873	select MIPS_CPU_SCACHE
1874	select MIPS_L1_CACHE_SHIFT_7
1875	select SYS_SUPPORTS_SMP
1876	select SYS_SUPPORTS_HOTPLUG_CPU
1877	select CPU_HAS_RIXI
1878
1879config SYS_HAS_CPU_LOONGSON3
1880	bool
1881	select CPU_SUPPORTS_CPUFREQ
1882	select CPU_HAS_RIXI
1883
1884config SYS_HAS_CPU_LOONGSON2E
1885	bool
1886
1887config SYS_HAS_CPU_LOONGSON2F
1888	bool
1889	select CPU_SUPPORTS_CPUFREQ
1890	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1891	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1892
1893config SYS_HAS_CPU_LOONGSON1B
1894	bool
1895
1896config SYS_HAS_CPU_LOONGSON1C
1897	bool
1898
1899config SYS_HAS_CPU_MIPS32_R1
1900	bool
1901
1902config SYS_HAS_CPU_MIPS32_R2
1903	bool
1904
1905config SYS_HAS_CPU_MIPS32_R3_5
1906	bool
1907
1908config SYS_HAS_CPU_MIPS32_R5
1909	bool
1910
1911config SYS_HAS_CPU_MIPS32_R6
1912	bool
1913
1914config SYS_HAS_CPU_MIPS64_R1
1915	bool
1916
1917config SYS_HAS_CPU_MIPS64_R2
1918	bool
1919
1920config SYS_HAS_CPU_MIPS64_R6
1921	bool
1922
1923config SYS_HAS_CPU_R3000
1924	bool
1925
1926config SYS_HAS_CPU_TX39XX
1927	bool
1928
1929config SYS_HAS_CPU_VR41XX
1930	bool
1931
1932config SYS_HAS_CPU_R4300
1933	bool
1934
1935config SYS_HAS_CPU_R4X00
1936	bool
1937
1938config SYS_HAS_CPU_TX49XX
1939	bool
1940
1941config SYS_HAS_CPU_R5000
1942	bool
1943
1944config SYS_HAS_CPU_R5432
1945	bool
1946
1947config SYS_HAS_CPU_R5500
1948	bool
1949
1950config SYS_HAS_CPU_NEVADA
1951	bool
1952
1953config SYS_HAS_CPU_R8000
1954	bool
1955
1956config SYS_HAS_CPU_R10000
1957	bool
1958
1959config SYS_HAS_CPU_RM7000
1960	bool
1961
1962config SYS_HAS_CPU_SB1
1963	bool
1964
1965config SYS_HAS_CPU_CAVIUM_OCTEON
1966	bool
1967
1968config SYS_HAS_CPU_BMIPS
1969	bool
1970
1971config SYS_HAS_CPU_BMIPS32_3300
1972	bool
1973	select SYS_HAS_CPU_BMIPS
1974
1975config SYS_HAS_CPU_BMIPS4350
1976	bool
1977	select SYS_HAS_CPU_BMIPS
1978
1979config SYS_HAS_CPU_BMIPS4380
1980	bool
1981	select SYS_HAS_CPU_BMIPS
1982
1983config SYS_HAS_CPU_BMIPS5000
1984	bool
1985	select SYS_HAS_CPU_BMIPS
1986
1987config SYS_HAS_CPU_XLR
1988	bool
1989
1990config SYS_HAS_CPU_XLP
1991	bool
1992
1993config MIPS_MALTA_PM
1994	depends on MIPS_MALTA
1995	depends on PCI
1996	bool
1997	default y
1998
1999#
2000# CPU may reorder R->R, R->W, W->R, W->W
2001# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2002#
2003config WEAK_ORDERING
2004	bool
2005
2006#
2007# CPU may reorder reads and writes beyond LL/SC
2008# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2009#
2010config WEAK_REORDERING_BEYOND_LLSC
2011	bool
2012endmenu
2013
2014#
2015# These two indicate any level of the MIPS32 and MIPS64 architecture
2016#
2017config CPU_MIPS32
2018	bool
2019	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2020
2021config CPU_MIPS64
2022	bool
2023	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2024
2025#
2026# These two indicate the revision of the architecture, either Release 1 or Release 2
2027#
2028config CPU_MIPSR1
2029	bool
2030	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2031
2032config CPU_MIPSR2
2033	bool
2034	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2035	select CPU_HAS_RIXI
2036	select MIPS_SPRAM
2037
2038config CPU_MIPSR6
2039	bool
2040	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2041	select CPU_HAS_RIXI
2042	select HAVE_ARCH_BITREVERSE
2043	select MIPS_ASID_BITS_VARIABLE
2044	select MIPS_CRC_SUPPORT
2045	select MIPS_SPRAM
2046
2047config EVA
2048	bool
2049
2050config XPA
2051	bool
2052
2053config SYS_SUPPORTS_32BIT_KERNEL
2054	bool
2055config SYS_SUPPORTS_64BIT_KERNEL
2056	bool
2057config CPU_SUPPORTS_32BIT_KERNEL
2058	bool
2059config CPU_SUPPORTS_64BIT_KERNEL
2060	bool
2061config CPU_SUPPORTS_CPUFREQ
2062	bool
2063config CPU_SUPPORTS_ADDRWINCFG
2064	bool
2065config CPU_SUPPORTS_HUGEPAGES
2066	bool
2067config CPU_SUPPORTS_UNCACHED_ACCELERATED
2068	bool
2069config MIPS_PGD_C0_CONTEXT
2070	bool
2071	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2072
2073#
2074# Set to y for ptrace access to watch registers.
2075#
2076config HARDWARE_WATCHPOINTS
2077       bool
2078       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2079
2080menu "Kernel type"
2081
2082choice
2083	prompt "Kernel code model"
2084	help
2085	  You should only select this option if you have a workload that
2086	  actually benefits from 64-bit processing or if your machine has
2087	  large memory.  You will only be presented a single option in this
2088	  menu if your system does not support both 32-bit and 64-bit kernels.
2089
2090config 32BIT
2091	bool "32-bit kernel"
2092	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2093	select TRAD_SIGNALS
2094	help
2095	  Select this option if you want to build a 32-bit kernel.
2096
2097config 64BIT
2098	bool "64-bit kernel"
2099	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2100	help
2101	  Select this option if you want to build a 64-bit kernel.
2102
2103endchoice
2104
2105config KVM_GUEST
2106	bool "KVM Guest Kernel"
2107	depends on BROKEN_ON_SMP
2108	help
2109	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2110	  mode.
2111
2112config KVM_GUEST_TIMER_FREQ
2113	int "Count/Compare Timer Frequency (MHz)"
2114	depends on KVM_GUEST
2115	default 100
2116	help
2117	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2118	  emulation when determining guest CPU Frequency. Instead, the guest's
2119	  timer frequency is specified directly.
2120
2121config MIPS_VA_BITS_48
2122	bool "48 bits virtual memory"
2123	depends on 64BIT
2124	help
2125	  Support a maximum at least 48 bits of application virtual
2126	  memory.  Default is 40 bits or less, depending on the CPU.
2127	  For page sizes 16k and above, this option results in a small
2128	  memory overhead for page tables.  For 4k page size, a fourth
2129	  level of page tables is added which imposes both a memory
2130	  overhead as well as slower TLB fault handling.
2131
2132	  If unsure, say N.
2133
2134choice
2135	prompt "Kernel page size"
2136	default PAGE_SIZE_4KB
2137
2138config PAGE_SIZE_4KB
2139	bool "4kB"
2140	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2141	help
2142	 This option select the standard 4kB Linux page size.  On some
2143	 R3000-family processors this is the only available page size.  Using
2144	 4kB page size will minimize memory consumption and is therefore
2145	 recommended for low memory systems.
2146
2147config PAGE_SIZE_8KB
2148	bool "8kB"
2149	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2150	depends on !MIPS_VA_BITS_48
2151	help
2152	  Using 8kB page size will result in higher performance kernel at
2153	  the price of higher memory consumption.  This option is available
2154	  only on R8000 and cnMIPS processors.  Note that you will need a
2155	  suitable Linux distribution to support this.
2156
2157config PAGE_SIZE_16KB
2158	bool "16kB"
2159	depends on !CPU_R3000 && !CPU_TX39XX
2160	help
2161	  Using 16kB page size will result in higher performance kernel at
2162	  the price of higher memory consumption.  This option is available on
2163	  all non-R3000 family processors.  Note that you will need a suitable
2164	  Linux distribution to support this.
2165
2166config PAGE_SIZE_32KB
2167	bool "32kB"
2168	depends on CPU_CAVIUM_OCTEON
2169	depends on !MIPS_VA_BITS_48
2170	help
2171	  Using 32kB page size will result in higher performance kernel at
2172	  the price of higher memory consumption.  This option is available
2173	  only on cnMIPS cores.  Note that you will need a suitable Linux
2174	  distribution to support this.
2175
2176config PAGE_SIZE_64KB
2177	bool "64kB"
2178	depends on !CPU_R3000 && !CPU_TX39XX
2179	help
2180	  Using 64kB page size will result in higher performance kernel at
2181	  the price of higher memory consumption.  This option is available on
2182	  all non-R3000 family processor.  Not that at the time of this
2183	  writing this option is still high experimental.
2184
2185endchoice
2186
2187config FORCE_MAX_ZONEORDER
2188	int "Maximum zone order"
2189	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2190	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2191	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2192	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2193	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2194	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2195	range 11 64
2196	default "11"
2197	help
2198	  The kernel memory allocator divides physically contiguous memory
2199	  blocks into "zones", where each zone is a power of two number of
2200	  pages.  This option selects the largest power of two that the kernel
2201	  keeps in the memory allocator.  If you need to allocate very large
2202	  blocks of physically contiguous memory, then you may need to
2203	  increase this value.
2204
2205	  This config option is actually maximum order plus one. For example,
2206	  a value of 11 means that the largest free memory block is 2^10 pages.
2207
2208	  The page size is not necessarily 4KB.  Keep this in mind
2209	  when choosing a value for this option.
2210
2211config BOARD_SCACHE
2212	bool
2213
2214config IP22_CPU_SCACHE
2215	bool
2216	select BOARD_SCACHE
2217
2218#
2219# Support for a MIPS32 / MIPS64 style S-caches
2220#
2221config MIPS_CPU_SCACHE
2222	bool
2223	select BOARD_SCACHE
2224
2225config R5000_CPU_SCACHE
2226	bool
2227	select BOARD_SCACHE
2228
2229config RM7000_CPU_SCACHE
2230	bool
2231	select BOARD_SCACHE
2232
2233config SIBYTE_DMA_PAGEOPS
2234	bool "Use DMA to clear/copy pages"
2235	depends on CPU_SB1
2236	help
2237	  Instead of using the CPU to zero and copy pages, use a Data Mover
2238	  channel.  These DMA channels are otherwise unused by the standard
2239	  SiByte Linux port.  Seems to give a small performance benefit.
2240
2241config CPU_HAS_PREFETCH
2242	bool
2243
2244config CPU_GENERIC_DUMP_TLB
2245	bool
2246	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2247
2248config CPU_R4K_FPU
2249	bool
2250	default y if !(CPU_R3000 || CPU_TX39XX)
2251
2252config CPU_R4K_CACHE_TLB
2253	bool
2254	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2255
2256config MIPS_MT_SMP
2257	bool "MIPS MT SMP support (1 TC on each available VPE)"
2258	default y
2259	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2260	select CPU_MIPSR2_IRQ_VI
2261	select CPU_MIPSR2_IRQ_EI
2262	select SYNC_R4K
2263	select MIPS_MT
2264	select SMP
2265	select SMP_UP
2266	select SYS_SUPPORTS_SMP
2267	select SYS_SUPPORTS_SCHED_SMT
2268	select MIPS_PERF_SHARED_TC_COUNTERS
2269	help
2270	  This is a kernel model which is known as SMVP. This is supported
2271	  on cores with the MT ASE and uses the available VPEs to implement
2272	  virtual processors which supports SMP. This is equivalent to the
2273	  Intel Hyperthreading feature. For further information go to
2274	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2275
2276config MIPS_MT
2277	bool
2278
2279config SCHED_SMT
2280	bool "SMT (multithreading) scheduler support"
2281	depends on SYS_SUPPORTS_SCHED_SMT
2282	default n
2283	help
2284	  SMT scheduler support improves the CPU scheduler's decision making
2285	  when dealing with MIPS MT enabled cores at a cost of slightly
2286	  increased overhead in some places. If unsure say N here.
2287
2288config SYS_SUPPORTS_SCHED_SMT
2289	bool
2290
2291config SYS_SUPPORTS_MULTITHREADING
2292	bool
2293
2294config MIPS_MT_FPAFF
2295	bool "Dynamic FPU affinity for FP-intensive threads"
2296	default y
2297	depends on MIPS_MT_SMP
2298
2299config MIPSR2_TO_R6_EMULATOR
2300	bool "MIPS R2-to-R6 emulator"
2301	depends on CPU_MIPSR6
2302	default y
2303	help
2304	  Choose this option if you want to run non-R6 MIPS userland code.
2305	  Even if you say 'Y' here, the emulator will still be disabled by
2306	  default. You can enable it using the 'mipsr2emu' kernel option.
2307	  The only reason this is a build-time option is to save ~14K from the
2308	  final kernel image.
2309
2310config SYS_SUPPORTS_VPE_LOADER
2311	bool
2312	depends on SYS_SUPPORTS_MULTITHREADING
2313	help
2314	  Indicates that the platform supports the VPE loader, and provides
2315	  physical_memsize.
2316
2317config MIPS_VPE_LOADER
2318	bool "VPE loader support."
2319	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2320	select CPU_MIPSR2_IRQ_VI
2321	select CPU_MIPSR2_IRQ_EI
2322	select MIPS_MT
2323	help
2324	  Includes a loader for loading an elf relocatable object
2325	  onto another VPE and running it.
2326
2327config MIPS_VPE_LOADER_CMP
2328	bool
2329	default "y"
2330	depends on MIPS_VPE_LOADER && MIPS_CMP
2331
2332config MIPS_VPE_LOADER_MT
2333	bool
2334	default "y"
2335	depends on MIPS_VPE_LOADER && !MIPS_CMP
2336
2337config MIPS_VPE_LOADER_TOM
2338	bool "Load VPE program into memory hidden from linux"
2339	depends on MIPS_VPE_LOADER
2340	default y
2341	help
2342	  The loader can use memory that is present but has been hidden from
2343	  Linux using the kernel command line option "mem=xxMB". It's up to
2344	  you to ensure the amount you put in the option and the space your
2345	  program requires is less or equal to the amount physically present.
2346
2347config MIPS_VPE_APSP_API
2348	bool "Enable support for AP/SP API (RTLX)"
2349	depends on MIPS_VPE_LOADER
2350
2351config MIPS_VPE_APSP_API_CMP
2352	bool
2353	default "y"
2354	depends on MIPS_VPE_APSP_API && MIPS_CMP
2355
2356config MIPS_VPE_APSP_API_MT
2357	bool
2358	default "y"
2359	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2360
2361config MIPS_CMP
2362	bool "MIPS CMP framework support (DEPRECATED)"
2363	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2364	select SMP
2365	select SYNC_R4K
2366	select SYS_SUPPORTS_SMP
2367	select WEAK_ORDERING
2368	default n
2369	help
2370	  Select this if you are using a bootloader which implements the "CMP
2371	  framework" protocol (ie. YAMON) and want your kernel to make use of
2372	  its ability to start secondary CPUs.
2373
2374	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2375	  instead of this.
2376
2377config MIPS_CPS
2378	bool "MIPS Coherent Processing System support"
2379	depends on SYS_SUPPORTS_MIPS_CPS
2380	select MIPS_CM
2381	select MIPS_CPS_PM if HOTPLUG_CPU
2382	select SMP
2383	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2384	select SYS_SUPPORTS_HOTPLUG_CPU
2385	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2386	select SYS_SUPPORTS_SMP
2387	select WEAK_ORDERING
2388	help
2389	  Select this if you wish to run an SMP kernel across multiple cores
2390	  within a MIPS Coherent Processing System. When this option is
2391	  enabled the kernel will probe for other cores and boot them with
2392	  no external assistance. It is safe to enable this when hardware
2393	  support is unavailable.
2394
2395config MIPS_CPS_PM
2396	depends on MIPS_CPS
2397	bool
2398
2399config MIPS_CM
2400	bool
2401	select MIPS_CPC
2402
2403config MIPS_CPC
2404	bool
2405
2406config SB1_PASS_2_WORKAROUNDS
2407	bool
2408	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2409	default y
2410
2411config SB1_PASS_2_1_WORKAROUNDS
2412	bool
2413	depends on CPU_SB1 && CPU_SB1_PASS_2
2414	default y
2415
2416
2417choice
2418	prompt "SmartMIPS or microMIPS ASE support"
2419
2420config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2421	bool "None"
2422	help
2423	  Select this if you want neither microMIPS nor SmartMIPS support
2424
2425config CPU_HAS_SMARTMIPS
2426	depends on SYS_SUPPORTS_SMARTMIPS
2427	bool "SmartMIPS"
2428	help
2429	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2430	  increased security at both hardware and software level for
2431	  smartcards.  Enabling this option will allow proper use of the
2432	  SmartMIPS instructions by Linux applications.  However a kernel with
2433	  this option will not work on a MIPS core without SmartMIPS core.  If
2434	  you don't know you probably don't have SmartMIPS and should say N
2435	  here.
2436
2437config CPU_MICROMIPS
2438	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2439	bool "microMIPS"
2440	help
2441	  When this option is enabled the kernel will be built using the
2442	  microMIPS ISA
2443
2444endchoice
2445
2446config CPU_HAS_MSA
2447	bool "Support for the MIPS SIMD Architecture"
2448	depends on CPU_SUPPORTS_MSA
2449	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2450	help
2451	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2452	  and a set of SIMD instructions to operate on them. When this option
2453	  is enabled the kernel will support allocating & switching MSA
2454	  vector register contexts. If you know that your kernel will only be
2455	  running on CPUs which do not support MSA or that your userland will
2456	  not be making use of it then you may wish to say N here to reduce
2457	  the size & complexity of your kernel.
2458
2459	  If unsure, say Y.
2460
2461config CPU_HAS_WB
2462	bool
2463
2464config XKS01
2465	bool
2466
2467config CPU_HAS_RIXI
2468	bool
2469
2470#
2471# Vectored interrupt mode is an R2 feature
2472#
2473config CPU_MIPSR2_IRQ_VI
2474	bool
2475
2476#
2477# Extended interrupt mode is an R2 feature
2478#
2479config CPU_MIPSR2_IRQ_EI
2480	bool
2481
2482config CPU_HAS_SYNC
2483	bool
2484	depends on !CPU_R3000
2485	default y
2486
2487#
2488# CPU non-features
2489#
2490config CPU_DADDI_WORKAROUNDS
2491	bool
2492
2493config CPU_R4000_WORKAROUNDS
2494	bool
2495	select CPU_R4400_WORKAROUNDS
2496
2497config CPU_R4400_WORKAROUNDS
2498	bool
2499
2500config MIPS_ASID_SHIFT
2501	int
2502	default 6 if CPU_R3000 || CPU_TX39XX
2503	default 4 if CPU_R8000
2504	default 0
2505
2506config MIPS_ASID_BITS
2507	int
2508	default 0 if MIPS_ASID_BITS_VARIABLE
2509	default 6 if CPU_R3000 || CPU_TX39XX
2510	default 8
2511
2512config MIPS_ASID_BITS_VARIABLE
2513	bool
2514
2515config MIPS_CRC_SUPPORT
2516	bool
2517
2518#
2519# - Highmem only makes sense for the 32-bit kernel.
2520# - The current highmem code will only work properly on physically indexed
2521#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2522#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2523#   moment we protect the user and offer the highmem option only on machines
2524#   where it's known to be safe.  This will not offer highmem on a few systems
2525#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2526#   indexed CPUs but we're playing safe.
2527# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2528#   know they might have memory configurations that could make use of highmem
2529#   support.
2530#
2531config HIGHMEM
2532	bool "High Memory Support"
2533	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2534
2535config CPU_SUPPORTS_HIGHMEM
2536	bool
2537
2538config SYS_SUPPORTS_HIGHMEM
2539	bool
2540
2541config SYS_SUPPORTS_SMARTMIPS
2542	bool
2543
2544config SYS_SUPPORTS_MICROMIPS
2545	bool
2546
2547config SYS_SUPPORTS_MIPS16
2548	bool
2549	help
2550	  This option must be set if a kernel might be executed on a MIPS16-
2551	  enabled CPU even if MIPS16 is not actually being used.  In other
2552	  words, it makes the kernel MIPS16-tolerant.
2553
2554config CPU_SUPPORTS_MSA
2555	bool
2556
2557config ARCH_FLATMEM_ENABLE
2558	def_bool y
2559	depends on !NUMA && !CPU_LOONGSON2
2560
2561config ARCH_DISCONTIGMEM_ENABLE
2562	bool
2563	default y if SGI_IP27
2564	help
2565	  Say Y to support efficient handling of discontiguous physical memory,
2566	  for architectures which are either NUMA (Non-Uniform Memory Access)
2567	  or have huge holes in the physical address space for other reasons.
2568	  See <file:Documentation/vm/numa.rst> for more.
2569
2570config ARCH_SPARSEMEM_ENABLE
2571	bool
2572	select SPARSEMEM_STATIC
2573
2574config NUMA
2575	bool "NUMA Support"
2576	depends on SYS_SUPPORTS_NUMA
2577	help
2578	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2579	  Access).  This option improves performance on systems with more
2580	  than two nodes; on two node systems it is generally better to
2581	  leave it disabled; on single node systems disable this option
2582	  disabled.
2583
2584config SYS_SUPPORTS_NUMA
2585	bool
2586
2587config RELOCATABLE
2588	bool "Relocatable kernel"
2589	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2590	help
2591	  This builds a kernel image that retains relocation information
2592	  so it can be loaded someplace besides the default 1MB.
2593	  The relocations make the kernel binary about 15% larger,
2594	  but are discarded at runtime
2595
2596config RELOCATION_TABLE_SIZE
2597	hex "Relocation table size"
2598	depends on RELOCATABLE
2599	range 0x0 0x01000000
2600	default "0x00100000"
2601	---help---
2602	  A table of relocation data will be appended to the kernel binary
2603	  and parsed at boot to fix up the relocated kernel.
2604
2605	  This option allows the amount of space reserved for the table to be
2606	  adjusted, although the default of 1Mb should be ok in most cases.
2607
2608	  The build will fail and a valid size suggested if this is too small.
2609
2610	  If unsure, leave at the default value.
2611
2612config RANDOMIZE_BASE
2613	bool "Randomize the address of the kernel image"
2614	depends on RELOCATABLE
2615	---help---
2616	   Randomizes the physical and virtual address at which the
2617	   kernel image is loaded, as a security feature that
2618	   deters exploit attempts relying on knowledge of the location
2619	   of kernel internals.
2620
2621	   Entropy is generated using any coprocessor 0 registers available.
2622
2623	   The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2624
2625	   If unsure, say N.
2626
2627config RANDOMIZE_BASE_MAX_OFFSET
2628	hex "Maximum kASLR offset" if EXPERT
2629	depends on RANDOMIZE_BASE
2630	range 0x0 0x40000000 if EVA || 64BIT
2631	range 0x0 0x08000000
2632	default "0x01000000"
2633	---help---
2634	  When kASLR is active, this provides the maximum offset that will
2635	  be applied to the kernel image. It should be set according to the
2636	  amount of physical RAM available in the target system minus
2637	  PHYSICAL_START and must be a power of 2.
2638
2639	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2640	  EVA or 64-bit. The default is 16Mb.
2641
2642config NODES_SHIFT
2643	int
2644	default "6"
2645	depends on NEED_MULTIPLE_NODES
2646
2647config HW_PERF_EVENTS
2648	bool "Enable hardware performance counter support for perf events"
2649	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2650	default y
2651	help
2652	  Enable hardware performance counter support for perf events. If
2653	  disabled, perf events will use software events only.
2654
2655source "mm/Kconfig"
2656
2657config SMP
2658	bool "Multi-Processing support"
2659	depends on SYS_SUPPORTS_SMP
2660	help
2661	  This enables support for systems with more than one CPU. If you have
2662	  a system with only one CPU, say N. If you have a system with more
2663	  than one CPU, say Y.
2664
2665	  If you say N here, the kernel will run on uni- and multiprocessor
2666	  machines, but will use only one CPU of a multiprocessor machine. If
2667	  you say Y here, the kernel will run on many, but not all,
2668	  uniprocessor machines. On a uniprocessor machine, the kernel
2669	  will run faster if you say N here.
2670
2671	  People using multiprocessor machines who say Y here should also say
2672	  Y to "Enhanced Real Time Clock Support", below.
2673
2674	  See also the SMP-HOWTO available at
2675	  <http://www.tldp.org/docs.html#howto>.
2676
2677	  If you don't know what to do here, say N.
2678
2679config HOTPLUG_CPU
2680	bool "Support for hot-pluggable CPUs"
2681	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2682	help
2683	  Say Y here to allow turning CPUs off and on. CPUs can be
2684	  controlled through /sys/devices/system/cpu.
2685	  (Note: power management support will enable this option
2686	    automatically on SMP systems. )
2687	  Say N if you want to disable CPU hotplug.
2688
2689config SMP_UP
2690	bool
2691
2692config SYS_SUPPORTS_MIPS_CMP
2693	bool
2694
2695config SYS_SUPPORTS_MIPS_CPS
2696	bool
2697
2698config SYS_SUPPORTS_SMP
2699	bool
2700
2701config NR_CPUS_DEFAULT_4
2702	bool
2703
2704config NR_CPUS_DEFAULT_8
2705	bool
2706
2707config NR_CPUS_DEFAULT_16
2708	bool
2709
2710config NR_CPUS_DEFAULT_32
2711	bool
2712
2713config NR_CPUS_DEFAULT_64
2714	bool
2715
2716config NR_CPUS
2717	int "Maximum number of CPUs (2-256)"
2718	range 2 256
2719	depends on SMP
2720	default "4" if NR_CPUS_DEFAULT_4
2721	default "8" if NR_CPUS_DEFAULT_8
2722	default "16" if NR_CPUS_DEFAULT_16
2723	default "32" if NR_CPUS_DEFAULT_32
2724	default "64" if NR_CPUS_DEFAULT_64
2725	help
2726	  This allows you to specify the maximum number of CPUs which this
2727	  kernel will support.  The maximum supported value is 32 for 32-bit
2728	  kernel and 64 for 64-bit kernels; the minimum value which makes
2729	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2730	  and 2 for all others.
2731
2732	  This is purely to save memory - each supported CPU adds
2733	  approximately eight kilobytes to the kernel image.  For best
2734	  performance should round up your number of processors to the next
2735	  power of two.
2736
2737config MIPS_PERF_SHARED_TC_COUNTERS
2738	bool
2739
2740config MIPS_NR_CPU_NR_MAP_1024
2741	bool
2742
2743config MIPS_NR_CPU_NR_MAP
2744	int
2745	depends on SMP
2746	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2747	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2748
2749#
2750# Timer Interrupt Frequency Configuration
2751#
2752
2753choice
2754	prompt "Timer frequency"
2755	default HZ_250
2756	help
2757	 Allows the configuration of the timer frequency.
2758
2759	config HZ_24
2760		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2761
2762	config HZ_48
2763		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2764
2765	config HZ_100
2766		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2767
2768	config HZ_128
2769		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2770
2771	config HZ_250
2772		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2773
2774	config HZ_256
2775		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2776
2777	config HZ_1000
2778		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2779
2780	config HZ_1024
2781		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2782
2783endchoice
2784
2785config SYS_SUPPORTS_24HZ
2786	bool
2787
2788config SYS_SUPPORTS_48HZ
2789	bool
2790
2791config SYS_SUPPORTS_100HZ
2792	bool
2793
2794config SYS_SUPPORTS_128HZ
2795	bool
2796
2797config SYS_SUPPORTS_250HZ
2798	bool
2799
2800config SYS_SUPPORTS_256HZ
2801	bool
2802
2803config SYS_SUPPORTS_1000HZ
2804	bool
2805
2806config SYS_SUPPORTS_1024HZ
2807	bool
2808
2809config SYS_SUPPORTS_ARBIT_HZ
2810	bool
2811	default y if !SYS_SUPPORTS_24HZ && \
2812		     !SYS_SUPPORTS_48HZ && \
2813		     !SYS_SUPPORTS_100HZ && \
2814		     !SYS_SUPPORTS_128HZ && \
2815		     !SYS_SUPPORTS_250HZ && \
2816		     !SYS_SUPPORTS_256HZ && \
2817		     !SYS_SUPPORTS_1000HZ && \
2818		     !SYS_SUPPORTS_1024HZ
2819
2820config HZ
2821	int
2822	default 24 if HZ_24
2823	default 48 if HZ_48
2824	default 100 if HZ_100
2825	default 128 if HZ_128
2826	default 250 if HZ_250
2827	default 256 if HZ_256
2828	default 1000 if HZ_1000
2829	default 1024 if HZ_1024
2830
2831config SCHED_HRTICK
2832	def_bool HIGH_RES_TIMERS
2833
2834source "kernel/Kconfig.preempt"
2835
2836config KEXEC
2837	bool "Kexec system call"
2838	select KEXEC_CORE
2839	help
2840	  kexec is a system call that implements the ability to shutdown your
2841	  current kernel, and to start another kernel.  It is like a reboot
2842	  but it is independent of the system firmware.   And like a reboot
2843	  you can start any kernel with it, not just Linux.
2844
2845	  The name comes from the similarity to the exec system call.
2846
2847	  It is an ongoing process to be certain the hardware in a machine
2848	  is properly shutdown, so do not be surprised if this code does not
2849	  initially work for you.  As of this writing the exact hardware
2850	  interface is strongly in flux, so no good recommendation can be
2851	  made.
2852
2853config CRASH_DUMP
2854	bool "Kernel crash dumps"
2855	help
2856	  Generate crash dump after being started by kexec.
2857	  This should be normally only set in special crash dump kernels
2858	  which are loaded in the main kernel with kexec-tools into
2859	  a specially reserved region and then later executed after
2860	  a crash by kdump/kexec. The crash dump kernel must be compiled
2861	  to a memory address not used by the main kernel or firmware using
2862	  PHYSICAL_START.
2863
2864config PHYSICAL_START
2865	hex "Physical address where the kernel is loaded"
2866	default "0xffffffff84000000"
2867	depends on CRASH_DUMP
2868	help
2869	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2870	  If you plan to use kernel for capturing the crash dump change
2871	  this value to start of the reserved region (the "X" value as
2872	  specified in the "crashkernel=YM@XM" command line boot parameter
2873	  passed to the panic-ed kernel).
2874
2875config SECCOMP
2876	bool "Enable seccomp to safely compute untrusted bytecode"
2877	depends on PROC_FS
2878	default y
2879	help
2880	  This kernel feature is useful for number crunching applications
2881	  that may need to compute untrusted bytecode during their
2882	  execution. By using pipes or other transports made available to
2883	  the process as file descriptors supporting the read/write
2884	  syscalls, it's possible to isolate those applications in
2885	  their own address space using seccomp. Once seccomp is
2886	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2887	  and the task is only allowed to execute a few safe syscalls
2888	  defined by each seccomp mode.
2889
2890	  If unsure, say Y. Only embedded should say N here.
2891
2892config MIPS_O32_FP64_SUPPORT
2893	bool "Support for O32 binaries using 64-bit FP"
2894	depends on 32BIT || MIPS32_O32
2895	help
2896	  When this is enabled, the kernel will support use of 64-bit floating
2897	  point registers with binaries using the O32 ABI along with the
2898	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2899	  32-bit MIPS systems this support is at the cost of increasing the
2900	  size and complexity of the compiled FPU emulator. Thus if you are
2901	  running a MIPS32 system and know that none of your userland binaries
2902	  will require 64-bit floating point, you may wish to reduce the size
2903	  of your kernel & potentially improve FP emulation performance by
2904	  saying N here.
2905
2906	  Although binutils currently supports use of this flag the details
2907	  concerning its effect upon the O32 ABI in userland are still being
2908	  worked on. In order to avoid userland becoming dependant upon current
2909	  behaviour before the details have been finalised, this option should
2910	  be considered experimental and only enabled by those working upon
2911	  said details.
2912
2913	  If unsure, say N.
2914
2915config USE_OF
2916	bool
2917	select OF
2918	select OF_EARLY_FLATTREE
2919	select IRQ_DOMAIN
2920
2921config BUILTIN_DTB
2922	bool
2923
2924choice
2925	prompt "Kernel appended dtb support" if USE_OF
2926	default MIPS_NO_APPENDED_DTB
2927
2928	config MIPS_NO_APPENDED_DTB
2929		bool "None"
2930		help
2931		  Do not enable appended dtb support.
2932
2933	config MIPS_ELF_APPENDED_DTB
2934		bool "vmlinux"
2935		help
2936		  With this option, the boot code will look for a device tree binary
2937		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2938		  it is empty and the DTB can be appended using binutils command
2939		  objcopy:
2940
2941		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2942
2943		  This is meant as a backward compatiblity convenience for those
2944		  systems with a bootloader that can't be upgraded to accommodate
2945		  the documented boot protocol using a device tree.
2946
2947	config MIPS_RAW_APPENDED_DTB
2948		bool "vmlinux.bin or vmlinuz.bin"
2949		help
2950		  With this option, the boot code will look for a device tree binary
2951		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2952		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2953
2954		  This is meant as a backward compatibility convenience for those
2955		  systems with a bootloader that can't be upgraded to accommodate
2956		  the documented boot protocol using a device tree.
2957
2958		  Beware that there is very little in terms of protection against
2959		  this option being confused by leftover garbage in memory that might
2960		  look like a DTB header after a reboot if no actual DTB is appended
2961		  to vmlinux.bin.  Do not leave this option active in a production kernel
2962		  if you don't intend to always append a DTB.
2963endchoice
2964
2965choice
2966	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2967	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2968					 !MIPS_MALTA && \
2969					 !CAVIUM_OCTEON_SOC
2970	default MIPS_CMDLINE_FROM_BOOTLOADER
2971
2972	config MIPS_CMDLINE_FROM_DTB
2973		depends on USE_OF
2974		bool "Dtb kernel arguments if available"
2975
2976	config MIPS_CMDLINE_DTB_EXTEND
2977		depends on USE_OF
2978		bool "Extend dtb kernel arguments with bootloader arguments"
2979
2980	config MIPS_CMDLINE_FROM_BOOTLOADER
2981		bool "Bootloader kernel arguments if available"
2982
2983	config MIPS_CMDLINE_BUILTIN_EXTEND
2984		depends on CMDLINE_BOOL
2985		bool "Extend builtin kernel arguments with bootloader arguments"
2986endchoice
2987
2988endmenu
2989
2990config LOCKDEP_SUPPORT
2991	bool
2992	default y
2993
2994config STACKTRACE_SUPPORT
2995	bool
2996	default y
2997
2998config HAVE_LATENCYTOP_SUPPORT
2999	bool
3000	default y
3001
3002config PGTABLE_LEVELS
3003	int
3004	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3005	default 3 if 64BIT && !PAGE_SIZE_64KB
3006	default 2
3007
3008source "init/Kconfig"
3009
3010source "kernel/Kconfig.freezer"
3011
3012menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3013
3014config HW_HAS_EISA
3015	bool
3016config HW_HAS_PCI
3017	bool
3018
3019config PCI
3020	bool "Support for PCI controller"
3021	depends on HW_HAS_PCI
3022	select PCI_DOMAINS
3023	help
3024	  Find out whether you have a PCI motherboard. PCI is the name of a
3025	  bus system, i.e. the way the CPU talks to the other stuff inside
3026	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3027	  say Y, otherwise N.
3028
3029config HT_PCI
3030	bool "Support for HT-linked PCI"
3031	default y
3032	depends on CPU_LOONGSON3
3033	select PCI
3034	select PCI_DOMAINS
3035	help
3036	  Loongson family machines use Hyper-Transport bus for inter-core
3037	  connection and device connection. The PCI bus is a subordinate
3038	  linked at HT. Choose Y for Loongson-3 based machines.
3039
3040config PCI_DOMAINS
3041	bool
3042
3043config PCI_DOMAINS_GENERIC
3044	bool
3045
3046config PCI_DRIVERS_GENERIC
3047	select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3048	bool
3049
3050config PCI_DRIVERS_LEGACY
3051	def_bool !PCI_DRIVERS_GENERIC
3052	select NO_GENERIC_PCI_IOPORT_MAP
3053
3054source "drivers/pci/Kconfig"
3055
3056#
3057# ISA support is now enabled via select.  Too many systems still have the one
3058# or other ISA chip on the board that users don't know about so don't expect
3059# users to choose the right thing ...
3060#
3061config ISA
3062	bool
3063
3064config EISA
3065	bool "EISA support"
3066	depends on HW_HAS_EISA
3067	select ISA
3068	select GENERIC_ISA_DMA
3069	---help---
3070	  The Extended Industry Standard Architecture (EISA) bus was
3071	  developed as an open alternative to the IBM MicroChannel bus.
3072
3073	  The EISA bus provided some of the features of the IBM MicroChannel
3074	  bus while maintaining backward compatibility with cards made for
3075	  the older ISA bus.  The EISA bus saw limited use between 1988 and
3076	  1995 when it was made obsolete by the PCI bus.
3077
3078	  Say Y here if you are building a kernel for an EISA-based machine.
3079
3080	  Otherwise, say N.
3081
3082source "drivers/eisa/Kconfig"
3083
3084config TC
3085	bool "TURBOchannel support"
3086	depends on MACH_DECSTATION
3087	help
3088	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3089	  processors.  TURBOchannel programming specifications are available
3090	  at:
3091	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3092	  and:
3093	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3094	  Linux driver support status is documented at:
3095	  <http://www.linux-mips.org/wiki/DECstation>
3096
3097config MMU
3098	bool
3099	default y
3100
3101config ARCH_MMAP_RND_BITS_MIN
3102	default 12 if 64BIT
3103	default 8
3104
3105config ARCH_MMAP_RND_BITS_MAX
3106	default 18 if 64BIT
3107	default 15
3108
3109config ARCH_MMAP_RND_COMPAT_BITS_MIN
3110       default 8
3111
3112config ARCH_MMAP_RND_COMPAT_BITS_MAX
3113       default 15
3114
3115config I8253
3116	bool
3117	select CLKSRC_I8253
3118	select CLKEVT_I8253
3119	select MIPS_EXTERNAL_TIMER
3120
3121config ZONE_DMA
3122	bool
3123
3124config ZONE_DMA32
3125	bool
3126
3127source "drivers/pcmcia/Kconfig"
3128
3129config RAPIDIO
3130	tristate "RapidIO support"
3131	depends on PCI
3132	default n
3133	help
3134	  If you say Y here, the kernel will include drivers and
3135	  infrastructure code to support RapidIO interconnect devices.
3136
3137source "drivers/rapidio/Kconfig"
3138
3139endmenu
3140
3141menu "Executable file formats"
3142
3143source "fs/Kconfig.binfmt"
3144
3145config TRAD_SIGNALS
3146	bool
3147
3148config MIPS32_COMPAT
3149	bool
3150
3151config COMPAT
3152	bool
3153
3154config SYSVIPC_COMPAT
3155	bool
3156
3157config MIPS32_O32
3158	bool "Kernel support for o32 binaries"
3159	depends on 64BIT
3160	select ARCH_WANT_OLD_COMPAT_IPC
3161	select COMPAT
3162	select MIPS32_COMPAT
3163	select SYSVIPC_COMPAT if SYSVIPC
3164	help
3165	  Select this option if you want to run o32 binaries.  These are pure
3166	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3167	  existing binaries are in this format.
3168
3169	  If unsure, say Y.
3170
3171config MIPS32_N32
3172	bool "Kernel support for n32 binaries"
3173	depends on 64BIT
3174	select COMPAT
3175	select MIPS32_COMPAT
3176	select SYSVIPC_COMPAT if SYSVIPC
3177	help
3178	  Select this option if you want to run n32 binaries.  These are
3179	  64-bit binaries using 32-bit quantities for addressing and certain
3180	  data that would normally be 64-bit.  They are used in special
3181	  cases.
3182
3183	  If unsure, say N.
3184
3185config BINFMT_ELF32
3186	bool
3187	default y if MIPS32_O32 || MIPS32_N32
3188	select ELFCORE
3189
3190endmenu
3191
3192menu "Power management options"
3193
3194config ARCH_HIBERNATION_POSSIBLE
3195	def_bool y
3196	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3197
3198config ARCH_SUSPEND_POSSIBLE
3199	def_bool y
3200	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3201
3202source "kernel/power/Kconfig"
3203
3204endmenu
3205
3206config MIPS_EXTERNAL_TIMER
3207	bool
3208
3209menu "CPU Power Management"
3210
3211if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3212source "drivers/cpufreq/Kconfig"
3213endif
3214
3215source "drivers/cpuidle/Kconfig"
3216
3217endmenu
3218
3219source "net/Kconfig"
3220
3221source "drivers/Kconfig"
3222
3223source "drivers/firmware/Kconfig"
3224
3225source "fs/Kconfig"
3226
3227source "arch/mips/Kconfig.debug"
3228
3229source "security/Kconfig"
3230
3231source "crypto/Kconfig"
3232
3233source "lib/Kconfig"
3234
3235source "arch/mips/kvm/Kconfig"
3236