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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_COMPILER_H
37	select HAVE_ARCH_JUMP_LABEL
38	select HAVE_ARCH_KGDB
39	select HAVE_ARCH_MMAP_RND_BITS if MMU
40	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
41	select HAVE_ARCH_SECCOMP_FILTER
42	select HAVE_ARCH_TRACEHOOK
43	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
44	select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
45	select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
46	select HAVE_CONTEXT_TRACKING
47	select HAVE_COPY_THREAD_TLS
48	select HAVE_C_RECORDMCOUNT
49	select HAVE_DEBUG_KMEMLEAK
50	select HAVE_DEBUG_STACKOVERFLOW
51	select HAVE_DMA_CONTIGUOUS
52	select HAVE_DYNAMIC_FTRACE
53	select HAVE_EXIT_THREAD
54	select HAVE_FTRACE_MCOUNT_RECORD
55	select HAVE_FUNCTION_GRAPH_TRACER
56	select HAVE_FUNCTION_TRACER
57	select HAVE_GENERIC_DMA_COHERENT
58	select HAVE_IDE
59	select HAVE_IRQ_EXIT_ON_IRQ_STACK
60	select HAVE_IRQ_TIME_ACCOUNTING
61	select HAVE_KPROBES
62	select HAVE_KRETPROBES
63	select HAVE_MEMBLOCK
64	select HAVE_MEMBLOCK_NODE_MAP
65	select HAVE_MOD_ARCH_SPECIFIC
66	select HAVE_NMI
67	select HAVE_OPROFILE
68	select HAVE_PERF_EVENTS
69	select HAVE_REGS_AND_STACK_ACCESS_API
70	select HAVE_RSEQ
71	select HAVE_STACKPROTECTOR
72	select HAVE_SYSCALL_TRACEPOINTS
73	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
74	select IRQ_FORCED_THREADING
75	select MODULES_USE_ELF_RELA if MODULES && 64BIT
76	select MODULES_USE_ELF_REL if MODULES
77	select PERF_USE_VMALLOC
78	select RTC_LIB if !MACH_LOONGSON64
79	select SYSCTL_EXCEPTION_TRACE
80	select VIRT_TO_BUS
81
82menu "Machine selection"
83
84choice
85	prompt "System type"
86	default MIPS_GENERIC
87
88config MIPS_GENERIC
89	bool "Generic board-agnostic MIPS kernel"
90	select BOOT_RAW
91	select BUILTIN_DTB
92	select CEVT_R4K
93	select CLKSRC_MIPS_GIC
94	select COMMON_CLK
95	select CPU_MIPSR2_IRQ_VI
96	select CPU_MIPSR2_IRQ_EI
97	select CSRC_R4K
98	select DMA_PERDEV_COHERENT
99	select HW_HAS_PCI
100	select IRQ_MIPS_CPU
101	select LIBFDT
102	select MIPS_AUTO_PFN_OFFSET
103	select MIPS_CPU_SCACHE
104	select MIPS_GIC
105	select MIPS_L1_CACHE_SHIFT_7
106	select NO_EXCEPT_FILL
107	select PCI_DRIVERS_GENERIC
108	select PINCTRL
109	select SMP_UP if SMP
110	select SWAP_IO_SPACE
111	select SYS_HAS_CPU_MIPS32_R1
112	select SYS_HAS_CPU_MIPS32_R2
113	select SYS_HAS_CPU_MIPS32_R6
114	select SYS_HAS_CPU_MIPS64_R1
115	select SYS_HAS_CPU_MIPS64_R2
116	select SYS_HAS_CPU_MIPS64_R6
117	select SYS_SUPPORTS_32BIT_KERNEL
118	select SYS_SUPPORTS_64BIT_KERNEL
119	select SYS_SUPPORTS_BIG_ENDIAN
120	select SYS_SUPPORTS_HIGHMEM
121	select SYS_SUPPORTS_LITTLE_ENDIAN
122	select SYS_SUPPORTS_MICROMIPS
123	select SYS_SUPPORTS_MIPS_CPS
124	select SYS_SUPPORTS_MIPS16
125	select SYS_SUPPORTS_MULTITHREADING
126	select SYS_SUPPORTS_RELOCATABLE
127	select SYS_SUPPORTS_SMARTMIPS
128	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
129	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
130	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
131	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
132	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
133	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
134	select USE_OF
135	help
136	  Select this to build a kernel which aims to support multiple boards,
137	  generally using a flattened device tree passed from the bootloader
138	  using the boot protocol defined in the UHI (Unified Hosting
139	  Interface) specification.
140
141config MIPS_ALCHEMY
142	bool "Alchemy processor based machines"
143	select PHYS_ADDR_T_64BIT
144	select CEVT_R4K
145	select CSRC_R4K
146	select IRQ_MIPS_CPU
147	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
148	select SYS_HAS_CPU_MIPS32_R1
149	select SYS_SUPPORTS_32BIT_KERNEL
150	select SYS_SUPPORTS_APM_EMULATION
151	select GPIOLIB
152	select SYS_SUPPORTS_ZBOOT
153	select COMMON_CLK
154
155config AR7
156	bool "Texas Instruments AR7"
157	select BOOT_ELF32
158	select DMA_NONCOHERENT
159	select CEVT_R4K
160	select CSRC_R4K
161	select IRQ_MIPS_CPU
162	select NO_EXCEPT_FILL
163	select SWAP_IO_SPACE
164	select SYS_HAS_CPU_MIPS32_R1
165	select SYS_HAS_EARLY_PRINTK
166	select SYS_SUPPORTS_32BIT_KERNEL
167	select SYS_SUPPORTS_LITTLE_ENDIAN
168	select SYS_SUPPORTS_MIPS16
169	select SYS_SUPPORTS_ZBOOT_UART16550
170	select GPIOLIB
171	select VLYNQ
172	select HAVE_CLK
173	help
174	  Support for the Texas Instruments AR7 System-on-a-Chip
175	  family: TNETD7100, 7200 and 7300.
176
177config ATH25
178	bool "Atheros AR231x/AR531x SoC support"
179	select CEVT_R4K
180	select CSRC_R4K
181	select DMA_NONCOHERENT
182	select IRQ_MIPS_CPU
183	select IRQ_DOMAIN
184	select SYS_HAS_CPU_MIPS32_R1
185	select SYS_SUPPORTS_BIG_ENDIAN
186	select SYS_SUPPORTS_32BIT_KERNEL
187	select SYS_HAS_EARLY_PRINTK
188	help
189	  Support for Atheros AR231x and Atheros AR531x based boards
190
191config ATH79
192	bool "Atheros AR71XX/AR724X/AR913X based boards"
193	select ARCH_HAS_RESET_CONTROLLER
194	select BOOT_RAW
195	select CEVT_R4K
196	select CSRC_R4K
197	select DMA_NONCOHERENT
198	select GPIOLIB
199	select PINCTRL
200	select HAVE_CLK
201	select COMMON_CLK
202	select CLKDEV_LOOKUP
203	select IRQ_MIPS_CPU
204	select MIPS_MACHINE
205	select SYS_HAS_CPU_MIPS32_R2
206	select SYS_HAS_EARLY_PRINTK
207	select SYS_SUPPORTS_32BIT_KERNEL
208	select SYS_SUPPORTS_BIG_ENDIAN
209	select SYS_SUPPORTS_MIPS16
210	select SYS_SUPPORTS_ZBOOT_UART_PROM
211	select USE_OF
212	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
213	help
214	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
215
216config BMIPS_GENERIC
217	bool "Broadcom Generic BMIPS kernel"
218	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
219	select ARCH_HAS_PHYS_TO_DMA
220	select BOOT_RAW
221	select NO_EXCEPT_FILL
222	select USE_OF
223	select CEVT_R4K
224	select CSRC_R4K
225	select SYNC_R4K
226	select COMMON_CLK
227	select BCM6345_L1_IRQ
228	select BCM7038_L1_IRQ
229	select BCM7120_L2_IRQ
230	select BRCMSTB_L2_IRQ
231	select IRQ_MIPS_CPU
232	select DMA_NONCOHERENT
233	select SYS_SUPPORTS_32BIT_KERNEL
234	select SYS_SUPPORTS_LITTLE_ENDIAN
235	select SYS_SUPPORTS_BIG_ENDIAN
236	select SYS_SUPPORTS_HIGHMEM
237	select SYS_HAS_CPU_BMIPS32_3300
238	select SYS_HAS_CPU_BMIPS4350
239	select SYS_HAS_CPU_BMIPS4380
240	select SYS_HAS_CPU_BMIPS5000
241	select SWAP_IO_SPACE
242	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
243	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
244	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
245	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
246	select HARDIRQS_SW_RESEND
247	help
248	  Build a generic DT-based kernel image that boots on select
249	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
250	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
251	  must be set appropriately for your board.
252
253config BCM47XX
254	bool "Broadcom BCM47XX based boards"
255	select BOOT_RAW
256	select CEVT_R4K
257	select CSRC_R4K
258	select DMA_NONCOHERENT
259	select HW_HAS_PCI
260	select IRQ_MIPS_CPU
261	select SYS_HAS_CPU_MIPS32_R1
262	select NO_EXCEPT_FILL
263	select SYS_SUPPORTS_32BIT_KERNEL
264	select SYS_SUPPORTS_LITTLE_ENDIAN
265	select SYS_SUPPORTS_MIPS16
266	select SYS_SUPPORTS_ZBOOT
267	select SYS_HAS_EARLY_PRINTK
268	select USE_GENERIC_EARLY_PRINTK_8250
269	select GPIOLIB
270	select LEDS_GPIO_REGISTER
271	select BCM47XX_NVRAM
272	select BCM47XX_SPROM
273	select BCM47XX_SSB if !BCM47XX_BCMA
274	help
275	 Support for BCM47XX based boards
276
277config BCM63XX
278	bool "Broadcom BCM63XX based boards"
279	select BOOT_RAW
280	select CEVT_R4K
281	select CSRC_R4K
282	select SYNC_R4K
283	select DMA_NONCOHERENT
284	select IRQ_MIPS_CPU
285	select SYS_SUPPORTS_32BIT_KERNEL
286	select SYS_SUPPORTS_BIG_ENDIAN
287	select SYS_HAS_EARLY_PRINTK
288	select SWAP_IO_SPACE
289	select GPIOLIB
290	select HAVE_CLK
291	select MIPS_L1_CACHE_SHIFT_4
292	select CLKDEV_LOOKUP
293	help
294	 Support for BCM63XX based boards
295
296config MIPS_COBALT
297	bool "Cobalt Server"
298	select CEVT_R4K
299	select CSRC_R4K
300	select CEVT_GT641XX
301	select DMA_NONCOHERENT
302	select HW_HAS_PCI
303	select I8253
304	select I8259
305	select IRQ_MIPS_CPU
306	select IRQ_GT641XX
307	select PCI_GT64XXX_PCI0
308	select PCI
309	select SYS_HAS_CPU_NEVADA
310	select SYS_HAS_EARLY_PRINTK
311	select SYS_SUPPORTS_32BIT_KERNEL
312	select SYS_SUPPORTS_64BIT_KERNEL
313	select SYS_SUPPORTS_LITTLE_ENDIAN
314	select USE_GENERIC_EARLY_PRINTK_8250
315
316config MACH_DECSTATION
317	bool "DECstations"
318	select BOOT_ELF32
319	select CEVT_DS1287
320	select CEVT_R4K if CPU_R4X00
321	select CSRC_IOASIC
322	select CSRC_R4K if CPU_R4X00
323	select CPU_DADDI_WORKAROUNDS if 64BIT
324	select CPU_R4000_WORKAROUNDS if 64BIT
325	select CPU_R4400_WORKAROUNDS if 64BIT
326	select DMA_NONCOHERENT
327	select NO_IOPORT_MAP
328	select IRQ_MIPS_CPU
329	select SYS_HAS_CPU_R3000
330	select SYS_HAS_CPU_R4X00
331	select SYS_SUPPORTS_32BIT_KERNEL
332	select SYS_SUPPORTS_64BIT_KERNEL
333	select SYS_SUPPORTS_LITTLE_ENDIAN
334	select SYS_SUPPORTS_128HZ
335	select SYS_SUPPORTS_256HZ
336	select SYS_SUPPORTS_1024HZ
337	select MIPS_L1_CACHE_SHIFT_4
338	help
339	  This enables support for DEC's MIPS based workstations.  For details
340	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
341	  DECstation porting pages on <http://decstation.unix-ag.org/>.
342
343	  If you have one of the following DECstation Models you definitely
344	  want to choose R4xx0 for the CPU Type:
345
346		DECstation 5000/50
347		DECstation 5000/150
348		DECstation 5000/260
349		DECsystem 5900/260
350
351	  otherwise choose R3000.
352
353config MACH_JAZZ
354	bool "Jazz family of machines"
355	select ARCH_MIGHT_HAVE_PC_PARPORT
356	select ARCH_MIGHT_HAVE_PC_SERIO
357	select FW_ARC
358	select FW_ARC32
359	select ARCH_MAY_HAVE_PC_FDC
360	select CEVT_R4K
361	select CSRC_R4K
362	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
363	select GENERIC_ISA_DMA
364	select HAVE_PCSPKR_PLATFORM
365	select IRQ_MIPS_CPU
366	select I8253
367	select I8259
368	select ISA
369	select SYS_HAS_CPU_R4X00
370	select SYS_SUPPORTS_32BIT_KERNEL
371	select SYS_SUPPORTS_64BIT_KERNEL
372	select SYS_SUPPORTS_100HZ
373	help
374	 This a family of machines based on the MIPS R4030 chipset which was
375	 used by several vendors to build RISC/os and Windows NT workstations.
376	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
377	 Olivetti M700-10 workstations.
378
379config MACH_INGENIC
380	bool "Ingenic SoC based machines"
381	select SYS_SUPPORTS_32BIT_KERNEL
382	select SYS_SUPPORTS_LITTLE_ENDIAN
383	select SYS_SUPPORTS_ZBOOT_UART16550
384	select DMA_NONCOHERENT
385	select IRQ_MIPS_CPU
386	select PINCTRL
387	select GPIOLIB
388	select COMMON_CLK
389	select GENERIC_IRQ_CHIP
390	select BUILTIN_DTB
391	select USE_OF
392	select LIBFDT
393
394config LANTIQ
395	bool "Lantiq based platforms"
396	select DMA_NONCOHERENT
397	select IRQ_MIPS_CPU
398	select CEVT_R4K
399	select CSRC_R4K
400	select SYS_HAS_CPU_MIPS32_R1
401	select SYS_HAS_CPU_MIPS32_R2
402	select SYS_SUPPORTS_BIG_ENDIAN
403	select SYS_SUPPORTS_32BIT_KERNEL
404	select SYS_SUPPORTS_MIPS16
405	select SYS_SUPPORTS_MULTITHREADING
406	select SYS_SUPPORTS_VPE_LOADER
407	select SYS_HAS_EARLY_PRINTK
408	select GPIOLIB
409	select SWAP_IO_SPACE
410	select BOOT_RAW
411	select CLKDEV_LOOKUP
412	select USE_OF
413	select PINCTRL
414	select PINCTRL_LANTIQ
415	select ARCH_HAS_RESET_CONTROLLER
416	select RESET_CONTROLLER
417
418config LASAT
419	bool "LASAT Networks platforms"
420	select CEVT_R4K
421	select CRC32
422	select CSRC_R4K
423	select DMA_NONCOHERENT
424	select SYS_HAS_EARLY_PRINTK
425	select HW_HAS_PCI
426	select IRQ_MIPS_CPU
427	select PCI_GT64XXX_PCI0
428	select MIPS_NILE4
429	select R5000_CPU_SCACHE
430	select SYS_HAS_CPU_R5000
431	select SYS_SUPPORTS_32BIT_KERNEL
432	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
433	select SYS_SUPPORTS_LITTLE_ENDIAN
434
435config MACH_LOONGSON32
436	bool "Loongson-1 family of machines"
437	select SYS_SUPPORTS_ZBOOT
438	help
439	  This enables support for the Loongson-1 family of machines.
440
441	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
442	  the Institute of Computing Technology (ICT), Chinese Academy of
443	  Sciences (CAS).
444
445config MACH_LOONGSON64
446	bool "Loongson-2/3 family of machines"
447	select SYS_SUPPORTS_ZBOOT
448	help
449	  This enables the support of Loongson-2/3 family of machines.
450
451	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
452	  family of multi-core CPUs. They are both 64-bit general-purpose
453	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
454	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
455	  in the People's Republic of China. The chief architect is Professor
456	  Weiwu Hu.
457
458config MACH_PISTACHIO
459	bool "IMG Pistachio SoC based boards"
460	select BOOT_ELF32
461	select BOOT_RAW
462	select CEVT_R4K
463	select CLKSRC_MIPS_GIC
464	select COMMON_CLK
465	select CSRC_R4K
466	select DMA_NONCOHERENT
467	select GPIOLIB
468	select IRQ_MIPS_CPU
469	select LIBFDT
470	select MFD_SYSCON
471	select MIPS_CPU_SCACHE
472	select MIPS_GIC
473	select PINCTRL
474	select REGULATOR
475	select SYS_HAS_CPU_MIPS32_R2
476	select SYS_SUPPORTS_32BIT_KERNEL
477	select SYS_SUPPORTS_LITTLE_ENDIAN
478	select SYS_SUPPORTS_MIPS_CPS
479	select SYS_SUPPORTS_MULTITHREADING
480	select SYS_SUPPORTS_RELOCATABLE
481	select SYS_SUPPORTS_ZBOOT
482	select SYS_HAS_EARLY_PRINTK
483	select USE_GENERIC_EARLY_PRINTK_8250
484	select USE_OF
485	help
486	  This enables support for the IMG Pistachio SoC platform.
487
488config MIPS_MALTA
489	bool "MIPS Malta board"
490	select ARCH_MAY_HAVE_PC_FDC
491	select ARCH_MIGHT_HAVE_PC_PARPORT
492	select ARCH_MIGHT_HAVE_PC_SERIO
493	select BOOT_ELF32
494	select BOOT_RAW
495	select BUILTIN_DTB
496	select CEVT_R4K
497	select CSRC_R4K
498	select CLKSRC_MIPS_GIC
499	select COMMON_CLK
500	select DMA_MAYBE_COHERENT
501	select GENERIC_ISA_DMA
502	select HAVE_PCSPKR_PLATFORM
503	select IRQ_MIPS_CPU
504	select MIPS_GIC
505	select HW_HAS_PCI
506	select I8253
507	select I8259
508	select MIPS_BONITO64
509	select MIPS_CPU_SCACHE
510	select MIPS_L1_CACHE_SHIFT_6
511	select PCI_GT64XXX_PCI0
512	select MIPS_MSC
513	select SMP_UP if SMP
514	select SWAP_IO_SPACE
515	select SYS_HAS_CPU_MIPS32_R1
516	select SYS_HAS_CPU_MIPS32_R2
517	select SYS_HAS_CPU_MIPS32_R3_5
518	select SYS_HAS_CPU_MIPS32_R5
519	select SYS_HAS_CPU_MIPS32_R6
520	select SYS_HAS_CPU_MIPS64_R1
521	select SYS_HAS_CPU_MIPS64_R2
522	select SYS_HAS_CPU_MIPS64_R6
523	select SYS_HAS_CPU_NEVADA
524	select SYS_HAS_CPU_RM7000
525	select SYS_SUPPORTS_32BIT_KERNEL
526	select SYS_SUPPORTS_64BIT_KERNEL
527	select SYS_SUPPORTS_BIG_ENDIAN
528	select SYS_SUPPORTS_HIGHMEM
529	select SYS_SUPPORTS_LITTLE_ENDIAN
530	select SYS_SUPPORTS_MICROMIPS
531	select SYS_SUPPORTS_MIPS_CMP
532	select SYS_SUPPORTS_MIPS_CPS
533	select SYS_SUPPORTS_MIPS16
534	select SYS_SUPPORTS_MULTITHREADING
535	select SYS_SUPPORTS_SMARTMIPS
536	select SYS_SUPPORTS_VPE_LOADER
537	select SYS_SUPPORTS_ZBOOT
538	select SYS_SUPPORTS_RELOCATABLE
539	select USE_OF
540	select LIBFDT
541	select ZONE_DMA32 if 64BIT
542	select BUILTIN_DTB
543	select LIBFDT
544	help
545	  This enables support for the MIPS Technologies Malta evaluation
546	  board.
547
548config MACH_PIC32
549	bool "Microchip PIC32 Family"
550	help
551	  This enables support for the Microchip PIC32 family of platforms.
552
553	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
554	  microcontrollers.
555
556config NEC_MARKEINS
557	bool "NEC EMMA2RH Mark-eins board"
558	select SOC_EMMA2RH
559	select HW_HAS_PCI
560	help
561	  This enables support for the NEC Electronics Mark-eins boards.
562
563config MACH_VR41XX
564	bool "NEC VR4100 series based machines"
565	select CEVT_R4K
566	select CSRC_R4K
567	select SYS_HAS_CPU_VR41XX
568	select SYS_SUPPORTS_MIPS16
569	select GPIOLIB
570
571config NXP_STB220
572	bool "NXP STB220 board"
573	select SOC_PNX833X
574	help
575	 Support for NXP Semiconductors STB220 Development Board.
576
577config NXP_STB225
578	bool "NXP 225 board"
579	select SOC_PNX833X
580	select SOC_PNX8335
581	help
582	 Support for NXP Semiconductors STB225 Development Board.
583
584config PMC_MSP
585	bool "PMC-Sierra MSP chipsets"
586	select CEVT_R4K
587	select CSRC_R4K
588	select DMA_NONCOHERENT
589	select SWAP_IO_SPACE
590	select NO_EXCEPT_FILL
591	select BOOT_RAW
592	select SYS_HAS_CPU_MIPS32_R1
593	select SYS_HAS_CPU_MIPS32_R2
594	select SYS_SUPPORTS_32BIT_KERNEL
595	select SYS_SUPPORTS_BIG_ENDIAN
596	select SYS_SUPPORTS_MIPS16
597	select IRQ_MIPS_CPU
598	select SERIAL_8250
599	select SERIAL_8250_CONSOLE
600	select USB_EHCI_BIG_ENDIAN_MMIO
601	select USB_EHCI_BIG_ENDIAN_DESC
602	help
603	  This adds support for the PMC-Sierra family of Multi-Service
604	  Processor System-On-A-Chips.  These parts include a number
605	  of integrated peripherals, interfaces and DSPs in addition to
606	  a variety of MIPS cores.
607
608config RALINK
609	bool "Ralink based machines"
610	select CEVT_R4K
611	select CSRC_R4K
612	select BOOT_RAW
613	select DMA_NONCOHERENT
614	select IRQ_MIPS_CPU
615	select USE_OF
616	select SYS_HAS_CPU_MIPS32_R1
617	select SYS_HAS_CPU_MIPS32_R2
618	select SYS_SUPPORTS_32BIT_KERNEL
619	select SYS_SUPPORTS_LITTLE_ENDIAN
620	select SYS_SUPPORTS_MIPS16
621	select SYS_HAS_EARLY_PRINTK
622	select CLKDEV_LOOKUP
623	select ARCH_HAS_RESET_CONTROLLER
624	select RESET_CONTROLLER
625
626config SGI_IP22
627	bool "SGI IP22 (Indy/Indigo2)"
628	select FW_ARC
629	select FW_ARC32
630	select ARCH_MIGHT_HAVE_PC_SERIO
631	select BOOT_ELF32
632	select CEVT_R4K
633	select CSRC_R4K
634	select DEFAULT_SGI_PARTITION
635	select DMA_NONCOHERENT
636	select HW_HAS_EISA
637	select I8253
638	select I8259
639	select IP22_CPU_SCACHE
640	select IRQ_MIPS_CPU
641	select GENERIC_ISA_DMA_SUPPORT_BROKEN
642	select SGI_HAS_I8042
643	select SGI_HAS_INDYDOG
644	select SGI_HAS_HAL2
645	select SGI_HAS_SEEQ
646	select SGI_HAS_WD93
647	select SGI_HAS_ZILOG
648	select SWAP_IO_SPACE
649	select SYS_HAS_CPU_R4X00
650	select SYS_HAS_CPU_R5000
651	#
652	# Disable EARLY_PRINTK for now since it leads to overwritten prom
653	# memory during early boot on some machines.
654	#
655	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
656	# for a more details discussion
657	#
658	# select SYS_HAS_EARLY_PRINTK
659	select SYS_SUPPORTS_32BIT_KERNEL
660	select SYS_SUPPORTS_64BIT_KERNEL
661	select SYS_SUPPORTS_BIG_ENDIAN
662	select MIPS_L1_CACHE_SHIFT_7
663	help
664	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
665	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
666	  that runs on these, say Y here.
667
668config SGI_IP27
669	bool "SGI IP27 (Origin200/2000)"
670	select ARCH_HAS_PHYS_TO_DMA
671	select FW_ARC
672	select FW_ARC64
673	select BOOT_ELF64
674	select DEFAULT_SGI_PARTITION
675	select SYS_HAS_EARLY_PRINTK
676	select HW_HAS_PCI
677	select NR_CPUS_DEFAULT_64
678	select SYS_HAS_CPU_R10000
679	select SYS_SUPPORTS_64BIT_KERNEL
680	select SYS_SUPPORTS_BIG_ENDIAN
681	select SYS_SUPPORTS_NUMA
682	select SYS_SUPPORTS_SMP
683	select MIPS_L1_CACHE_SHIFT_7
684	help
685	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
686	  workstations.  To compile a Linux kernel that runs on these, say Y
687	  here.
688
689config SGI_IP28
690	bool "SGI IP28 (Indigo2 R10k)"
691	select FW_ARC
692	select FW_ARC64
693	select ARCH_MIGHT_HAVE_PC_SERIO
694	select BOOT_ELF64
695	select CEVT_R4K
696	select CSRC_R4K
697	select DEFAULT_SGI_PARTITION
698	select DMA_NONCOHERENT
699	select GENERIC_ISA_DMA_SUPPORT_BROKEN
700	select IRQ_MIPS_CPU
701	select HW_HAS_EISA
702	select I8253
703	select I8259
704	select SGI_HAS_I8042
705	select SGI_HAS_INDYDOG
706	select SGI_HAS_HAL2
707	select SGI_HAS_SEEQ
708	select SGI_HAS_WD93
709	select SGI_HAS_ZILOG
710	select SWAP_IO_SPACE
711	select SYS_HAS_CPU_R10000
712	#
713	# Disable EARLY_PRINTK for now since it leads to overwritten prom
714	# memory during early boot on some machines.
715	#
716	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
717	# for a more details discussion
718	#
719	# select SYS_HAS_EARLY_PRINTK
720	select SYS_SUPPORTS_64BIT_KERNEL
721	select SYS_SUPPORTS_BIG_ENDIAN
722	select MIPS_L1_CACHE_SHIFT_7
723      help
724        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
725        kernel that runs on these, say Y here.
726
727config SGI_IP32
728	bool "SGI IP32 (O2)"
729	select ARCH_HAS_PHYS_TO_DMA
730	select FW_ARC
731	select FW_ARC32
732	select BOOT_ELF32
733	select CEVT_R4K
734	select CSRC_R4K
735	select DMA_NONCOHERENT
736	select HW_HAS_PCI
737	select IRQ_MIPS_CPU
738	select R5000_CPU_SCACHE
739	select RM7000_CPU_SCACHE
740	select SYS_HAS_CPU_R5000
741	select SYS_HAS_CPU_R10000 if BROKEN
742	select SYS_HAS_CPU_RM7000
743	select SYS_HAS_CPU_NEVADA
744	select SYS_SUPPORTS_64BIT_KERNEL
745	select SYS_SUPPORTS_BIG_ENDIAN
746	help
747	  If you want this kernel to run on SGI O2 workstation, say Y here.
748
749config SIBYTE_CRHINE
750	bool "Sibyte BCM91120C-CRhine"
751	select BOOT_ELF32
752	select SIBYTE_BCM1120
753	select SWAP_IO_SPACE
754	select SYS_HAS_CPU_SB1
755	select SYS_SUPPORTS_BIG_ENDIAN
756	select SYS_SUPPORTS_LITTLE_ENDIAN
757
758config SIBYTE_CARMEL
759	bool "Sibyte BCM91120x-Carmel"
760	select BOOT_ELF32
761	select SIBYTE_BCM1120
762	select SWAP_IO_SPACE
763	select SYS_HAS_CPU_SB1
764	select SYS_SUPPORTS_BIG_ENDIAN
765	select SYS_SUPPORTS_LITTLE_ENDIAN
766
767config SIBYTE_CRHONE
768	bool "Sibyte BCM91125C-CRhone"
769	select BOOT_ELF32
770	select SIBYTE_BCM1125
771	select SWAP_IO_SPACE
772	select SYS_HAS_CPU_SB1
773	select SYS_SUPPORTS_BIG_ENDIAN
774	select SYS_SUPPORTS_HIGHMEM
775	select SYS_SUPPORTS_LITTLE_ENDIAN
776
777config SIBYTE_RHONE
778	bool "Sibyte BCM91125E-Rhone"
779	select BOOT_ELF32
780	select SIBYTE_BCM1125H
781	select SWAP_IO_SPACE
782	select SYS_HAS_CPU_SB1
783	select SYS_SUPPORTS_BIG_ENDIAN
784	select SYS_SUPPORTS_LITTLE_ENDIAN
785
786config SIBYTE_SWARM
787	bool "Sibyte BCM91250A-SWARM"
788	select BOOT_ELF32
789	select HAVE_PATA_PLATFORM
790	select SIBYTE_SB1250
791	select SWAP_IO_SPACE
792	select SYS_HAS_CPU_SB1
793	select SYS_SUPPORTS_BIG_ENDIAN
794	select SYS_SUPPORTS_HIGHMEM
795	select SYS_SUPPORTS_LITTLE_ENDIAN
796	select ZONE_DMA32 if 64BIT
797	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
798
799config SIBYTE_LITTLESUR
800	bool "Sibyte BCM91250C2-LittleSur"
801	select BOOT_ELF32
802	select HAVE_PATA_PLATFORM
803	select SIBYTE_SB1250
804	select SWAP_IO_SPACE
805	select SYS_HAS_CPU_SB1
806	select SYS_SUPPORTS_BIG_ENDIAN
807	select SYS_SUPPORTS_HIGHMEM
808	select SYS_SUPPORTS_LITTLE_ENDIAN
809	select ZONE_DMA32 if 64BIT
810
811config SIBYTE_SENTOSA
812	bool "Sibyte BCM91250E-Sentosa"
813	select BOOT_ELF32
814	select SIBYTE_SB1250
815	select SWAP_IO_SPACE
816	select SYS_HAS_CPU_SB1
817	select SYS_SUPPORTS_BIG_ENDIAN
818	select SYS_SUPPORTS_LITTLE_ENDIAN
819	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
820
821config SIBYTE_BIGSUR
822	bool "Sibyte BCM91480B-BigSur"
823	select BOOT_ELF32
824	select NR_CPUS_DEFAULT_4
825	select SIBYTE_BCM1x80
826	select SWAP_IO_SPACE
827	select SYS_HAS_CPU_SB1
828	select SYS_SUPPORTS_BIG_ENDIAN
829	select SYS_SUPPORTS_HIGHMEM
830	select SYS_SUPPORTS_LITTLE_ENDIAN
831	select ZONE_DMA32 if 64BIT
832	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
833
834config SNI_RM
835	bool "SNI RM200/300/400"
836	select FW_ARC if CPU_LITTLE_ENDIAN
837	select FW_ARC32 if CPU_LITTLE_ENDIAN
838	select FW_SNIPROM if CPU_BIG_ENDIAN
839	select ARCH_MAY_HAVE_PC_FDC
840	select ARCH_MIGHT_HAVE_PC_PARPORT
841	select ARCH_MIGHT_HAVE_PC_SERIO
842	select BOOT_ELF32
843	select CEVT_R4K
844	select CSRC_R4K
845	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
846	select DMA_NONCOHERENT
847	select GENERIC_ISA_DMA
848	select HAVE_PCSPKR_PLATFORM
849	select HW_HAS_EISA
850	select HW_HAS_PCI
851	select IRQ_MIPS_CPU
852	select I8253
853	select I8259
854	select ISA
855	select MIPS_L1_CACHE_SHIFT_6
856	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
857	select SYS_HAS_CPU_R4X00
858	select SYS_HAS_CPU_R5000
859	select SYS_HAS_CPU_R10000
860	select R5000_CPU_SCACHE
861	select SYS_HAS_EARLY_PRINTK
862	select SYS_SUPPORTS_32BIT_KERNEL
863	select SYS_SUPPORTS_64BIT_KERNEL
864	select SYS_SUPPORTS_BIG_ENDIAN
865	select SYS_SUPPORTS_HIGHMEM
866	select SYS_SUPPORTS_LITTLE_ENDIAN
867	help
868	  The SNI RM200/300/400 are MIPS-based machines manufactured by
869	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
870	  Technology and now in turn merged with Fujitsu.  Say Y here to
871	  support this machine type.
872
873config MACH_TX39XX
874	bool "Toshiba TX39 series based machines"
875
876config MACH_TX49XX
877	bool "Toshiba TX49 series based machines"
878
879config MIKROTIK_RB532
880	bool "Mikrotik RB532 boards"
881	select CEVT_R4K
882	select CSRC_R4K
883	select DMA_NONCOHERENT
884	select HW_HAS_PCI
885	select IRQ_MIPS_CPU
886	select SYS_HAS_CPU_MIPS32_R1
887	select SYS_SUPPORTS_32BIT_KERNEL
888	select SYS_SUPPORTS_LITTLE_ENDIAN
889	select SWAP_IO_SPACE
890	select BOOT_RAW
891	select GPIOLIB
892	select MIPS_L1_CACHE_SHIFT_4
893	help
894	  Support the Mikrotik(tm) RouterBoard 532 series,
895	  based on the IDT RC32434 SoC.
896
897config CAVIUM_OCTEON_SOC
898	bool "Cavium Networks Octeon SoC based boards"
899	select CEVT_R4K
900	select ARCH_HAS_PHYS_TO_DMA
901	select HAS_RAPIDIO
902	select PHYS_ADDR_T_64BIT
903	select SYS_SUPPORTS_64BIT_KERNEL
904	select SYS_SUPPORTS_BIG_ENDIAN
905	select EDAC_SUPPORT
906	select EDAC_ATOMIC_SCRUB
907	select SYS_SUPPORTS_LITTLE_ENDIAN
908	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
909	select SYS_HAS_EARLY_PRINTK
910	select SYS_HAS_CPU_CAVIUM_OCTEON
911	select HW_HAS_PCI
912	select ZONE_DMA32
913	select HOLES_IN_ZONE
914	select GPIOLIB
915	select LIBFDT
916	select USE_OF
917	select ARCH_SPARSEMEM_ENABLE
918	select SYS_SUPPORTS_SMP
919	select NR_CPUS_DEFAULT_64
920	select MIPS_NR_CPU_NR_MAP_1024
921	select BUILTIN_DTB
922	select MTD_COMPLEX_MAPPINGS
923	select SWIOTLB
924	select SYS_SUPPORTS_RELOCATABLE
925	help
926	  This option supports all of the Octeon reference boards from Cavium
927	  Networks. It builds a kernel that dynamically determines the Octeon
928	  CPU type and supports all known board reference implementations.
929	  Some of the supported boards are:
930		EBT3000
931		EBH3000
932		EBH3100
933		Thunder
934		Kodama
935		Hikari
936	  Say Y here for most Octeon reference boards.
937
938config NLM_XLR_BOARD
939	bool "Netlogic XLR/XLS based systems"
940	select BOOT_ELF32
941	select NLM_COMMON
942	select SYS_HAS_CPU_XLR
943	select SYS_SUPPORTS_SMP
944	select HW_HAS_PCI
945	select SWAP_IO_SPACE
946	select SYS_SUPPORTS_32BIT_KERNEL
947	select SYS_SUPPORTS_64BIT_KERNEL
948	select PHYS_ADDR_T_64BIT
949	select SYS_SUPPORTS_BIG_ENDIAN
950	select SYS_SUPPORTS_HIGHMEM
951	select NR_CPUS_DEFAULT_32
952	select CEVT_R4K
953	select CSRC_R4K
954	select IRQ_MIPS_CPU
955	select ZONE_DMA32 if 64BIT
956	select SYNC_R4K
957	select SYS_HAS_EARLY_PRINTK
958	select SYS_SUPPORTS_ZBOOT
959	select SYS_SUPPORTS_ZBOOT_UART16550
960	help
961	  Support for systems based on Netlogic XLR and XLS processors.
962	  Say Y here if you have a XLR or XLS based board.
963
964config NLM_XLP_BOARD
965	bool "Netlogic XLP based systems"
966	select BOOT_ELF32
967	select NLM_COMMON
968	select SYS_HAS_CPU_XLP
969	select SYS_SUPPORTS_SMP
970	select HW_HAS_PCI
971	select SYS_SUPPORTS_32BIT_KERNEL
972	select SYS_SUPPORTS_64BIT_KERNEL
973	select PHYS_ADDR_T_64BIT
974	select GPIOLIB
975	select SYS_SUPPORTS_BIG_ENDIAN
976	select SYS_SUPPORTS_LITTLE_ENDIAN
977	select SYS_SUPPORTS_HIGHMEM
978	select NR_CPUS_DEFAULT_32
979	select CEVT_R4K
980	select CSRC_R4K
981	select IRQ_MIPS_CPU
982	select ZONE_DMA32 if 64BIT
983	select SYNC_R4K
984	select SYS_HAS_EARLY_PRINTK
985	select USE_OF
986	select SYS_SUPPORTS_ZBOOT
987	select SYS_SUPPORTS_ZBOOT_UART16550
988	help
989	  This board is based on Netlogic XLP Processor.
990	  Say Y here if you have a XLP based board.
991
992config MIPS_PARAVIRT
993	bool "Para-Virtualized guest system"
994	select CEVT_R4K
995	select CSRC_R4K
996	select SYS_SUPPORTS_64BIT_KERNEL
997	select SYS_SUPPORTS_32BIT_KERNEL
998	select SYS_SUPPORTS_BIG_ENDIAN
999	select SYS_SUPPORTS_SMP
1000	select NR_CPUS_DEFAULT_4
1001	select SYS_HAS_EARLY_PRINTK
1002	select SYS_HAS_CPU_MIPS32_R2
1003	select SYS_HAS_CPU_MIPS64_R2
1004	select SYS_HAS_CPU_CAVIUM_OCTEON
1005	select HW_HAS_PCI
1006	select SWAP_IO_SPACE
1007	help
1008	  This option supports guest running under ????
1009
1010endchoice
1011
1012source "arch/mips/alchemy/Kconfig"
1013source "arch/mips/ath25/Kconfig"
1014source "arch/mips/ath79/Kconfig"
1015source "arch/mips/bcm47xx/Kconfig"
1016source "arch/mips/bcm63xx/Kconfig"
1017source "arch/mips/bmips/Kconfig"
1018source "arch/mips/generic/Kconfig"
1019source "arch/mips/jazz/Kconfig"
1020source "arch/mips/jz4740/Kconfig"
1021source "arch/mips/lantiq/Kconfig"
1022source "arch/mips/lasat/Kconfig"
1023source "arch/mips/pic32/Kconfig"
1024source "arch/mips/pistachio/Kconfig"
1025source "arch/mips/pmcs-msp71xx/Kconfig"
1026source "arch/mips/ralink/Kconfig"
1027source "arch/mips/sgi-ip27/Kconfig"
1028source "arch/mips/sibyte/Kconfig"
1029source "arch/mips/txx9/Kconfig"
1030source "arch/mips/vr41xx/Kconfig"
1031source "arch/mips/cavium-octeon/Kconfig"
1032source "arch/mips/loongson32/Kconfig"
1033source "arch/mips/loongson64/Kconfig"
1034source "arch/mips/netlogic/Kconfig"
1035source "arch/mips/paravirt/Kconfig"
1036
1037endmenu
1038
1039config RWSEM_GENERIC_SPINLOCK
1040	bool
1041	default y
1042
1043config RWSEM_XCHGADD_ALGORITHM
1044	bool
1045
1046config GENERIC_HWEIGHT
1047	bool
1048	default y
1049
1050config GENERIC_CALIBRATE_DELAY
1051	bool
1052	default y
1053
1054config SCHED_OMIT_FRAME_POINTER
1055	bool
1056	default y
1057
1058#
1059# Select some configuration options automatically based on user selections.
1060#
1061config FW_ARC
1062	bool
1063
1064config ARCH_MAY_HAVE_PC_FDC
1065	bool
1066
1067config BOOT_RAW
1068	bool
1069
1070config CEVT_BCM1480
1071	bool
1072
1073config CEVT_DS1287
1074	bool
1075
1076config CEVT_GT641XX
1077	bool
1078
1079config CEVT_R4K
1080	bool
1081
1082config CEVT_SB1250
1083	bool
1084
1085config CEVT_TXX9
1086	bool
1087
1088config CSRC_BCM1480
1089	bool
1090
1091config CSRC_IOASIC
1092	bool
1093
1094config CSRC_R4K
1095	bool
1096
1097config CSRC_SB1250
1098	bool
1099
1100config MIPS_CLOCK_VSYSCALL
1101	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1102
1103config GPIO_TXX9
1104	select GPIOLIB
1105	bool
1106
1107config FW_CFE
1108	bool
1109
1110config ARCH_SUPPORTS_UPROBES
1111	bool
1112
1113config DMA_MAYBE_COHERENT
1114	select DMA_NONCOHERENT
1115	bool
1116
1117config DMA_PERDEV_COHERENT
1118	bool
1119	select DMA_MAYBE_COHERENT
1120
1121config DMA_NONCOHERENT
1122	bool
1123	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1124	select ARCH_HAS_SYNC_DMA_FOR_CPU
1125	select NEED_DMA_MAP_STATE
1126	select DMA_NONCOHERENT_MMAP
1127	select DMA_NONCOHERENT_CACHE_SYNC
1128	select DMA_NONCOHERENT_OPS
1129
1130config SYS_HAS_EARLY_PRINTK
1131	bool
1132
1133config SYS_SUPPORTS_HOTPLUG_CPU
1134	bool
1135
1136config MIPS_BONITO64
1137	bool
1138
1139config MIPS_MSC
1140	bool
1141
1142config MIPS_NILE4
1143	bool
1144
1145config SYNC_R4K
1146	bool
1147
1148config MIPS_MACHINE
1149	def_bool n
1150
1151config NO_IOPORT_MAP
1152	def_bool n
1153
1154config GENERIC_CSUM
1155	bool
1156
1157config GENERIC_ISA_DMA
1158	bool
1159	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1160	select ISA_DMA_API
1161
1162config GENERIC_ISA_DMA_SUPPORT_BROKEN
1163	bool
1164	select GENERIC_ISA_DMA
1165
1166config ISA_DMA_API
1167	bool
1168
1169config HOLES_IN_ZONE
1170	bool
1171
1172config SYS_SUPPORTS_RELOCATABLE
1173	bool
1174	help
1175	 Selected if the platform supports relocating the kernel.
1176	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1177	 to allow access to command line and entropy sources.
1178
1179config MIPS_CBPF_JIT
1180	def_bool y
1181	depends on BPF_JIT && HAVE_CBPF_JIT
1182
1183config MIPS_EBPF_JIT
1184	def_bool y
1185	depends on BPF_JIT && HAVE_EBPF_JIT
1186
1187
1188#
1189# Endianness selection.  Sufficiently obscure so many users don't know what to
1190# answer,so we try hard to limit the available choices.  Also the use of a
1191# choice statement should be more obvious to the user.
1192#
1193choice
1194	prompt "Endianness selection"
1195	help
1196	  Some MIPS machines can be configured for either little or big endian
1197	  byte order. These modes require different kernels and a different
1198	  Linux distribution.  In general there is one preferred byteorder for a
1199	  particular system but some systems are just as commonly used in the
1200	  one or the other endianness.
1201
1202config CPU_BIG_ENDIAN
1203	bool "Big endian"
1204	depends on SYS_SUPPORTS_BIG_ENDIAN
1205
1206config CPU_LITTLE_ENDIAN
1207	bool "Little endian"
1208	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1209
1210endchoice
1211
1212config EXPORT_UASM
1213	bool
1214
1215config SYS_SUPPORTS_APM_EMULATION
1216	bool
1217
1218config SYS_SUPPORTS_BIG_ENDIAN
1219	bool
1220
1221config SYS_SUPPORTS_LITTLE_ENDIAN
1222	bool
1223
1224config SYS_SUPPORTS_HUGETLBFS
1225	bool
1226	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1227	default y
1228
1229config MIPS_HUGE_TLB_SUPPORT
1230	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1231
1232config IRQ_CPU_RM7K
1233	bool
1234
1235config IRQ_MSP_SLP
1236	bool
1237
1238config IRQ_MSP_CIC
1239	bool
1240
1241config IRQ_TXX9
1242	bool
1243
1244config IRQ_GT641XX
1245	bool
1246
1247config PCI_GT64XXX_PCI0
1248	bool
1249
1250config NO_EXCEPT_FILL
1251	bool
1252
1253config SOC_EMMA2RH
1254	bool
1255	select CEVT_R4K
1256	select CSRC_R4K
1257	select DMA_NONCOHERENT
1258	select IRQ_MIPS_CPU
1259	select SWAP_IO_SPACE
1260	select SYS_HAS_CPU_R5500
1261	select SYS_SUPPORTS_32BIT_KERNEL
1262	select SYS_SUPPORTS_64BIT_KERNEL
1263	select SYS_SUPPORTS_BIG_ENDIAN
1264
1265config SOC_PNX833X
1266	bool
1267	select CEVT_R4K
1268	select CSRC_R4K
1269	select IRQ_MIPS_CPU
1270	select DMA_NONCOHERENT
1271	select SYS_HAS_CPU_MIPS32_R2
1272	select SYS_SUPPORTS_32BIT_KERNEL
1273	select SYS_SUPPORTS_LITTLE_ENDIAN
1274	select SYS_SUPPORTS_BIG_ENDIAN
1275	select SYS_SUPPORTS_MIPS16
1276	select CPU_MIPSR2_IRQ_VI
1277
1278config SOC_PNX8335
1279	bool
1280	select SOC_PNX833X
1281
1282config MIPS_SPRAM
1283	bool
1284
1285config SWAP_IO_SPACE
1286	bool
1287
1288config SGI_HAS_INDYDOG
1289	bool
1290
1291config SGI_HAS_HAL2
1292	bool
1293
1294config SGI_HAS_SEEQ
1295	bool
1296
1297config SGI_HAS_WD93
1298	bool
1299
1300config SGI_HAS_ZILOG
1301	bool
1302
1303config SGI_HAS_I8042
1304	bool
1305
1306config DEFAULT_SGI_PARTITION
1307	bool
1308
1309config FW_ARC32
1310	bool
1311
1312config FW_SNIPROM
1313	bool
1314
1315config BOOT_ELF32
1316	bool
1317
1318config MIPS_L1_CACHE_SHIFT_4
1319	bool
1320
1321config MIPS_L1_CACHE_SHIFT_5
1322	bool
1323
1324config MIPS_L1_CACHE_SHIFT_6
1325	bool
1326
1327config MIPS_L1_CACHE_SHIFT_7
1328	bool
1329
1330config MIPS_L1_CACHE_SHIFT
1331	int
1332	default "7" if MIPS_L1_CACHE_SHIFT_7
1333	default "6" if MIPS_L1_CACHE_SHIFT_6
1334	default "5" if MIPS_L1_CACHE_SHIFT_5
1335	default "4" if MIPS_L1_CACHE_SHIFT_4
1336	default "5"
1337
1338config HAVE_STD_PC_SERIAL_PORT
1339	bool
1340
1341config ARC_CONSOLE
1342	bool "ARC console support"
1343	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1344
1345config ARC_MEMORY
1346	bool
1347	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1348	default y
1349
1350config ARC_PROMLIB
1351	bool
1352	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1353	default y
1354
1355config FW_ARC64
1356	bool
1357
1358config BOOT_ELF64
1359	bool
1360
1361menu "CPU selection"
1362
1363choice
1364	prompt "CPU type"
1365	default CPU_R4X00
1366
1367config CPU_LOONGSON3
1368	bool "Loongson 3 CPU"
1369	depends on SYS_HAS_CPU_LOONGSON3
1370	select ARCH_HAS_PHYS_TO_DMA
1371	select CPU_SUPPORTS_64BIT_KERNEL
1372	select CPU_SUPPORTS_HIGHMEM
1373	select CPU_SUPPORTS_HUGEPAGES
1374	select WEAK_ORDERING
1375	select WEAK_REORDERING_BEYOND_LLSC
1376	select MIPS_PGD_C0_CONTEXT
1377	select MIPS_L1_CACHE_SHIFT_6
1378	select GPIOLIB
1379	select SWIOTLB
1380	help
1381		The Loongson 3 processor implements the MIPS64R2 instruction
1382		set with many extensions.
1383
1384config LOONGSON3_ENHANCEMENT
1385	bool "New Loongson 3 CPU Enhancements"
1386	default n
1387	select CPU_MIPSR2
1388	select CPU_HAS_PREFETCH
1389	depends on CPU_LOONGSON3
1390	help
1391	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1392	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1393	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1394	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1395	  Fast TLB refill support, etc.
1396
1397	  This option enable those enhancements which are not probed at run
1398	  time. If you want a generic kernel to run on all Loongson 3 machines,
1399	  please say 'N' here. If you want a high-performance kernel to run on
1400	  new Loongson 3 machines only, please say 'Y' here.
1401
1402config CPU_LOONGSON2E
1403	bool "Loongson 2E"
1404	depends on SYS_HAS_CPU_LOONGSON2E
1405	select CPU_LOONGSON2
1406	help
1407	  The Loongson 2E processor implements the MIPS III instruction set
1408	  with many extensions.
1409
1410	  It has an internal FPGA northbridge, which is compatible to
1411	  bonito64.
1412
1413config CPU_LOONGSON2F
1414	bool "Loongson 2F"
1415	depends on SYS_HAS_CPU_LOONGSON2F
1416	select CPU_LOONGSON2
1417	select GPIOLIB
1418	help
1419	  The Loongson 2F processor implements the MIPS III instruction set
1420	  with many extensions.
1421
1422	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1423	  have a similar programming interface with FPGA northbridge used in
1424	  Loongson2E.
1425
1426config CPU_LOONGSON1B
1427	bool "Loongson 1B"
1428	depends on SYS_HAS_CPU_LOONGSON1B
1429	select CPU_LOONGSON1
1430	select LEDS_GPIO_REGISTER
1431	help
1432	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1433	  Release 1 instruction set and part of the MIPS32 Release 2
1434	  instruction set.
1435
1436config CPU_LOONGSON1C
1437	bool "Loongson 1C"
1438	depends on SYS_HAS_CPU_LOONGSON1C
1439	select CPU_LOONGSON1
1440	select LEDS_GPIO_REGISTER
1441	help
1442	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1443	  Release 1 instruction set and part of the MIPS32 Release 2
1444	  instruction set.
1445
1446config CPU_MIPS32_R1
1447	bool "MIPS32 Release 1"
1448	depends on SYS_HAS_CPU_MIPS32_R1
1449	select CPU_HAS_PREFETCH
1450	select CPU_SUPPORTS_32BIT_KERNEL
1451	select CPU_SUPPORTS_HIGHMEM
1452	help
1453	  Choose this option to build a kernel for release 1 or later of the
1454	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1455	  MIPS processor are based on a MIPS32 processor.  If you know the
1456	  specific type of processor in your system, choose those that one
1457	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1458	  Release 2 of the MIPS32 architecture is available since several
1459	  years so chances are you even have a MIPS32 Release 2 processor
1460	  in which case you should choose CPU_MIPS32_R2 instead for better
1461	  performance.
1462
1463config CPU_MIPS32_R2
1464	bool "MIPS32 Release 2"
1465	depends on SYS_HAS_CPU_MIPS32_R2
1466	select CPU_HAS_PREFETCH
1467	select CPU_SUPPORTS_32BIT_KERNEL
1468	select CPU_SUPPORTS_HIGHMEM
1469	select CPU_SUPPORTS_MSA
1470	select HAVE_KVM
1471	help
1472	  Choose this option to build a kernel for release 2 or later of the
1473	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1474	  MIPS processor are based on a MIPS32 processor.  If you know the
1475	  specific type of processor in your system, choose those that one
1476	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1477
1478config CPU_MIPS32_R6
1479	bool "MIPS32 Release 6"
1480	depends on SYS_HAS_CPU_MIPS32_R6
1481	select CPU_HAS_PREFETCH
1482	select CPU_SUPPORTS_32BIT_KERNEL
1483	select CPU_SUPPORTS_HIGHMEM
1484	select CPU_SUPPORTS_MSA
1485	select GENERIC_CSUM
1486	select HAVE_KVM
1487	select MIPS_O32_FP64_SUPPORT
1488	help
1489	  Choose this option to build a kernel for release 6 or later of the
1490	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1491	  family, are based on a MIPS32r6 processor. If you own an older
1492	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1493
1494config CPU_MIPS64_R1
1495	bool "MIPS64 Release 1"
1496	depends on SYS_HAS_CPU_MIPS64_R1
1497	select CPU_HAS_PREFETCH
1498	select CPU_SUPPORTS_32BIT_KERNEL
1499	select CPU_SUPPORTS_64BIT_KERNEL
1500	select CPU_SUPPORTS_HIGHMEM
1501	select CPU_SUPPORTS_HUGEPAGES
1502	help
1503	  Choose this option to build a kernel for release 1 or later of the
1504	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1505	  MIPS processor are based on a MIPS64 processor.  If you know the
1506	  specific type of processor in your system, choose those that one
1507	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1508	  Release 2 of the MIPS64 architecture is available since several
1509	  years so chances are you even have a MIPS64 Release 2 processor
1510	  in which case you should choose CPU_MIPS64_R2 instead for better
1511	  performance.
1512
1513config CPU_MIPS64_R2
1514	bool "MIPS64 Release 2"
1515	depends on SYS_HAS_CPU_MIPS64_R2
1516	select CPU_HAS_PREFETCH
1517	select CPU_SUPPORTS_32BIT_KERNEL
1518	select CPU_SUPPORTS_64BIT_KERNEL
1519	select CPU_SUPPORTS_HIGHMEM
1520	select CPU_SUPPORTS_HUGEPAGES
1521	select CPU_SUPPORTS_MSA
1522	select HAVE_KVM
1523	help
1524	  Choose this option to build a kernel for release 2 or later of the
1525	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1526	  MIPS processor are based on a MIPS64 processor.  If you know the
1527	  specific type of processor in your system, choose those that one
1528	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1529
1530config CPU_MIPS64_R6
1531	bool "MIPS64 Release 6"
1532	depends on SYS_HAS_CPU_MIPS64_R6
1533	select CPU_HAS_PREFETCH
1534	select CPU_SUPPORTS_32BIT_KERNEL
1535	select CPU_SUPPORTS_64BIT_KERNEL
1536	select CPU_SUPPORTS_HIGHMEM
1537	select CPU_SUPPORTS_MSA
1538	select GENERIC_CSUM
1539	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1540	select HAVE_KVM
1541	help
1542	  Choose this option to build a kernel for release 6 or later of the
1543	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1544	  family, are based on a MIPS64r6 processor. If you own an older
1545	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1546
1547config CPU_R3000
1548	bool "R3000"
1549	depends on SYS_HAS_CPU_R3000
1550	select CPU_HAS_WB
1551	select CPU_SUPPORTS_32BIT_KERNEL
1552	select CPU_SUPPORTS_HIGHMEM
1553	help
1554	  Please make sure to pick the right CPU type. Linux/MIPS is not
1555	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1556	  *not* work on R4000 machines and vice versa.  However, since most
1557	  of the supported machines have an R4000 (or similar) CPU, R4x00
1558	  might be a safe bet.  If the resulting kernel does not work,
1559	  try to recompile with R3000.
1560
1561config CPU_TX39XX
1562	bool "R39XX"
1563	depends on SYS_HAS_CPU_TX39XX
1564	select CPU_SUPPORTS_32BIT_KERNEL
1565
1566config CPU_VR41XX
1567	bool "R41xx"
1568	depends on SYS_HAS_CPU_VR41XX
1569	select CPU_SUPPORTS_32BIT_KERNEL
1570	select CPU_SUPPORTS_64BIT_KERNEL
1571	help
1572	  The options selects support for the NEC VR4100 series of processors.
1573	  Only choose this option if you have one of these processors as a
1574	  kernel built with this option will not run on any other type of
1575	  processor or vice versa.
1576
1577config CPU_R4300
1578	bool "R4300"
1579	depends on SYS_HAS_CPU_R4300
1580	select CPU_SUPPORTS_32BIT_KERNEL
1581	select CPU_SUPPORTS_64BIT_KERNEL
1582	help
1583	  MIPS Technologies R4300-series processors.
1584
1585config CPU_R4X00
1586	bool "R4x00"
1587	depends on SYS_HAS_CPU_R4X00
1588	select CPU_SUPPORTS_32BIT_KERNEL
1589	select CPU_SUPPORTS_64BIT_KERNEL
1590	select CPU_SUPPORTS_HUGEPAGES
1591	help
1592	  MIPS Technologies R4000-series processors other than 4300, including
1593	  the R4000, R4400, R4600, and 4700.
1594
1595config CPU_TX49XX
1596	bool "R49XX"
1597	depends on SYS_HAS_CPU_TX49XX
1598	select CPU_HAS_PREFETCH
1599	select CPU_SUPPORTS_32BIT_KERNEL
1600	select CPU_SUPPORTS_64BIT_KERNEL
1601	select CPU_SUPPORTS_HUGEPAGES
1602
1603config CPU_R5000
1604	bool "R5000"
1605	depends on SYS_HAS_CPU_R5000
1606	select CPU_SUPPORTS_32BIT_KERNEL
1607	select CPU_SUPPORTS_64BIT_KERNEL
1608	select CPU_SUPPORTS_HUGEPAGES
1609	help
1610	  MIPS Technologies R5000-series processors other than the Nevada.
1611
1612config CPU_R5432
1613	bool "R5432"
1614	depends on SYS_HAS_CPU_R5432
1615	select CPU_SUPPORTS_32BIT_KERNEL
1616	select CPU_SUPPORTS_64BIT_KERNEL
1617	select CPU_SUPPORTS_HUGEPAGES
1618
1619config CPU_R5500
1620	bool "R5500"
1621	depends on SYS_HAS_CPU_R5500
1622	select CPU_SUPPORTS_32BIT_KERNEL
1623	select CPU_SUPPORTS_64BIT_KERNEL
1624	select CPU_SUPPORTS_HUGEPAGES
1625	help
1626	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1627	  instruction set.
1628
1629config CPU_NEVADA
1630	bool "RM52xx"
1631	depends on SYS_HAS_CPU_NEVADA
1632	select CPU_SUPPORTS_32BIT_KERNEL
1633	select CPU_SUPPORTS_64BIT_KERNEL
1634	select CPU_SUPPORTS_HUGEPAGES
1635	help
1636	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1637
1638config CPU_R8000
1639	bool "R8000"
1640	depends on SYS_HAS_CPU_R8000
1641	select CPU_HAS_PREFETCH
1642	select CPU_SUPPORTS_64BIT_KERNEL
1643	help
1644	  MIPS Technologies R8000 processors.  Note these processors are
1645	  uncommon and the support for them is incomplete.
1646
1647config CPU_R10000
1648	bool "R10000"
1649	depends on SYS_HAS_CPU_R10000
1650	select CPU_HAS_PREFETCH
1651	select CPU_SUPPORTS_32BIT_KERNEL
1652	select CPU_SUPPORTS_64BIT_KERNEL
1653	select CPU_SUPPORTS_HIGHMEM
1654	select CPU_SUPPORTS_HUGEPAGES
1655	help
1656	  MIPS Technologies R10000-series processors.
1657
1658config CPU_RM7000
1659	bool "RM7000"
1660	depends on SYS_HAS_CPU_RM7000
1661	select CPU_HAS_PREFETCH
1662	select CPU_SUPPORTS_32BIT_KERNEL
1663	select CPU_SUPPORTS_64BIT_KERNEL
1664	select CPU_SUPPORTS_HIGHMEM
1665	select CPU_SUPPORTS_HUGEPAGES
1666
1667config CPU_SB1
1668	bool "SB1"
1669	depends on SYS_HAS_CPU_SB1
1670	select CPU_SUPPORTS_32BIT_KERNEL
1671	select CPU_SUPPORTS_64BIT_KERNEL
1672	select CPU_SUPPORTS_HIGHMEM
1673	select CPU_SUPPORTS_HUGEPAGES
1674	select WEAK_ORDERING
1675
1676config CPU_CAVIUM_OCTEON
1677	bool "Cavium Octeon processor"
1678	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1679	select CPU_HAS_PREFETCH
1680	select CPU_SUPPORTS_64BIT_KERNEL
1681	select WEAK_ORDERING
1682	select CPU_SUPPORTS_HIGHMEM
1683	select CPU_SUPPORTS_HUGEPAGES
1684	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1685	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1686	select MIPS_L1_CACHE_SHIFT_7
1687	select HAVE_KVM
1688	help
1689	  The Cavium Octeon processor is a highly integrated chip containing
1690	  many ethernet hardware widgets for networking tasks. The processor
1691	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1692	  Full details can be found at http://www.caviumnetworks.com.
1693
1694config CPU_BMIPS
1695	bool "Broadcom BMIPS"
1696	depends on SYS_HAS_CPU_BMIPS
1697	select CPU_MIPS32
1698	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1699	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1700	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1701	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1702	select CPU_SUPPORTS_32BIT_KERNEL
1703	select DMA_NONCOHERENT
1704	select IRQ_MIPS_CPU
1705	select SWAP_IO_SPACE
1706	select WEAK_ORDERING
1707	select CPU_SUPPORTS_HIGHMEM
1708	select CPU_HAS_PREFETCH
1709	select CPU_SUPPORTS_CPUFREQ
1710	select MIPS_EXTERNAL_TIMER
1711	help
1712	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1713
1714config CPU_XLR
1715	bool "Netlogic XLR SoC"
1716	depends on SYS_HAS_CPU_XLR
1717	select CPU_SUPPORTS_32BIT_KERNEL
1718	select CPU_SUPPORTS_64BIT_KERNEL
1719	select CPU_SUPPORTS_HIGHMEM
1720	select CPU_SUPPORTS_HUGEPAGES
1721	select WEAK_ORDERING
1722	select WEAK_REORDERING_BEYOND_LLSC
1723	help
1724	  Netlogic Microsystems XLR/XLS processors.
1725
1726config CPU_XLP
1727	bool "Netlogic XLP SoC"
1728	depends on SYS_HAS_CPU_XLP
1729	select CPU_SUPPORTS_32BIT_KERNEL
1730	select CPU_SUPPORTS_64BIT_KERNEL
1731	select CPU_SUPPORTS_HIGHMEM
1732	select WEAK_ORDERING
1733	select WEAK_REORDERING_BEYOND_LLSC
1734	select CPU_HAS_PREFETCH
1735	select CPU_MIPSR2
1736	select CPU_SUPPORTS_HUGEPAGES
1737	select MIPS_ASID_BITS_VARIABLE
1738	help
1739	  Netlogic Microsystems XLP processors.
1740endchoice
1741
1742config CPU_MIPS32_3_5_FEATURES
1743	bool "MIPS32 Release 3.5 Features"
1744	depends on SYS_HAS_CPU_MIPS32_R3_5
1745	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1746	help
1747	  Choose this option to build a kernel for release 2 or later of the
1748	  MIPS32 architecture including features from the 3.5 release such as
1749	  support for Enhanced Virtual Addressing (EVA).
1750
1751config CPU_MIPS32_3_5_EVA
1752	bool "Enhanced Virtual Addressing (EVA)"
1753	depends on CPU_MIPS32_3_5_FEATURES
1754	select EVA
1755	default y
1756	help
1757	  Choose this option if you want to enable the Enhanced Virtual
1758	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1759	  One of its primary benefits is an increase in the maximum size
1760	  of lowmem (up to 3GB). If unsure, say 'N' here.
1761
1762config CPU_MIPS32_R5_FEATURES
1763	bool "MIPS32 Release 5 Features"
1764	depends on SYS_HAS_CPU_MIPS32_R5
1765	depends on CPU_MIPS32_R2
1766	help
1767	  Choose this option to build a kernel for release 2 or later of the
1768	  MIPS32 architecture including features from release 5 such as
1769	  support for Extended Physical Addressing (XPA).
1770
1771config CPU_MIPS32_R5_XPA
1772	bool "Extended Physical Addressing (XPA)"
1773	depends on CPU_MIPS32_R5_FEATURES
1774	depends on !EVA
1775	depends on !PAGE_SIZE_4KB
1776	depends on SYS_SUPPORTS_HIGHMEM
1777	select XPA
1778	select HIGHMEM
1779	select PHYS_ADDR_T_64BIT
1780	default n
1781	help
1782	  Choose this option if you want to enable the Extended Physical
1783	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1784	  benefit is to increase physical addressing equal to or greater
1785	  than 40 bits. Note that this has the side effect of turning on
1786	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1787	  If unsure, say 'N' here.
1788
1789if CPU_LOONGSON2F
1790config CPU_NOP_WORKAROUNDS
1791	bool
1792
1793config CPU_JUMP_WORKAROUNDS
1794	bool
1795
1796config CPU_LOONGSON2F_WORKAROUNDS
1797	bool "Loongson 2F Workarounds"
1798	default y
1799	select CPU_NOP_WORKAROUNDS
1800	select CPU_JUMP_WORKAROUNDS
1801	help
1802	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1803	  require workarounds.  Without workarounds the system may hang
1804	  unexpectedly.  For more information please refer to the gas
1805	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1806
1807	  Loongson 2F03 and later have fixed these issues and no workarounds
1808	  are needed.  The workarounds have no significant side effect on them
1809	  but may decrease the performance of the system so this option should
1810	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1811	  systems.
1812
1813	  If unsure, please say Y.
1814endif # CPU_LOONGSON2F
1815
1816config SYS_SUPPORTS_ZBOOT
1817	bool
1818	select HAVE_KERNEL_GZIP
1819	select HAVE_KERNEL_BZIP2
1820	select HAVE_KERNEL_LZ4
1821	select HAVE_KERNEL_LZMA
1822	select HAVE_KERNEL_LZO
1823	select HAVE_KERNEL_XZ
1824
1825config SYS_SUPPORTS_ZBOOT_UART16550
1826	bool
1827	select SYS_SUPPORTS_ZBOOT
1828
1829config SYS_SUPPORTS_ZBOOT_UART_PROM
1830	bool
1831	select SYS_SUPPORTS_ZBOOT
1832
1833config CPU_LOONGSON2
1834	bool
1835	select CPU_SUPPORTS_32BIT_KERNEL
1836	select CPU_SUPPORTS_64BIT_KERNEL
1837	select CPU_SUPPORTS_HIGHMEM
1838	select CPU_SUPPORTS_HUGEPAGES
1839	select ARCH_HAS_PHYS_TO_DMA
1840
1841config CPU_LOONGSON1
1842	bool
1843	select CPU_MIPS32
1844	select CPU_MIPSR1
1845	select CPU_HAS_PREFETCH
1846	select CPU_SUPPORTS_32BIT_KERNEL
1847	select CPU_SUPPORTS_HIGHMEM
1848	select CPU_SUPPORTS_CPUFREQ
1849
1850config CPU_BMIPS32_3300
1851	select SMP_UP if SMP
1852	bool
1853
1854config CPU_BMIPS4350
1855	bool
1856	select SYS_SUPPORTS_SMP
1857	select SYS_SUPPORTS_HOTPLUG_CPU
1858
1859config CPU_BMIPS4380
1860	bool
1861	select MIPS_L1_CACHE_SHIFT_6
1862	select SYS_SUPPORTS_SMP
1863	select SYS_SUPPORTS_HOTPLUG_CPU
1864	select CPU_HAS_RIXI
1865
1866config CPU_BMIPS5000
1867	bool
1868	select MIPS_CPU_SCACHE
1869	select MIPS_L1_CACHE_SHIFT_7
1870	select SYS_SUPPORTS_SMP
1871	select SYS_SUPPORTS_HOTPLUG_CPU
1872	select CPU_HAS_RIXI
1873
1874config SYS_HAS_CPU_LOONGSON3
1875	bool
1876	select CPU_SUPPORTS_CPUFREQ
1877	select CPU_HAS_RIXI
1878
1879config SYS_HAS_CPU_LOONGSON2E
1880	bool
1881
1882config SYS_HAS_CPU_LOONGSON2F
1883	bool
1884	select CPU_SUPPORTS_CPUFREQ
1885	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1886	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1887
1888config SYS_HAS_CPU_LOONGSON1B
1889	bool
1890
1891config SYS_HAS_CPU_LOONGSON1C
1892	bool
1893
1894config SYS_HAS_CPU_MIPS32_R1
1895	bool
1896
1897config SYS_HAS_CPU_MIPS32_R2
1898	bool
1899
1900config SYS_HAS_CPU_MIPS32_R3_5
1901	bool
1902
1903config SYS_HAS_CPU_MIPS32_R5
1904	bool
1905
1906config SYS_HAS_CPU_MIPS32_R6
1907	bool
1908
1909config SYS_HAS_CPU_MIPS64_R1
1910	bool
1911
1912config SYS_HAS_CPU_MIPS64_R2
1913	bool
1914
1915config SYS_HAS_CPU_MIPS64_R6
1916	bool
1917
1918config SYS_HAS_CPU_R3000
1919	bool
1920
1921config SYS_HAS_CPU_TX39XX
1922	bool
1923
1924config SYS_HAS_CPU_VR41XX
1925	bool
1926
1927config SYS_HAS_CPU_R4300
1928	bool
1929
1930config SYS_HAS_CPU_R4X00
1931	bool
1932
1933config SYS_HAS_CPU_TX49XX
1934	bool
1935
1936config SYS_HAS_CPU_R5000
1937	bool
1938
1939config SYS_HAS_CPU_R5432
1940	bool
1941
1942config SYS_HAS_CPU_R5500
1943	bool
1944
1945config SYS_HAS_CPU_NEVADA
1946	bool
1947
1948config SYS_HAS_CPU_R8000
1949	bool
1950
1951config SYS_HAS_CPU_R10000
1952	bool
1953
1954config SYS_HAS_CPU_RM7000
1955	bool
1956
1957config SYS_HAS_CPU_SB1
1958	bool
1959
1960config SYS_HAS_CPU_CAVIUM_OCTEON
1961	bool
1962
1963config SYS_HAS_CPU_BMIPS
1964	bool
1965
1966config SYS_HAS_CPU_BMIPS32_3300
1967	bool
1968	select SYS_HAS_CPU_BMIPS
1969
1970config SYS_HAS_CPU_BMIPS4350
1971	bool
1972	select SYS_HAS_CPU_BMIPS
1973
1974config SYS_HAS_CPU_BMIPS4380
1975	bool
1976	select SYS_HAS_CPU_BMIPS
1977
1978config SYS_HAS_CPU_BMIPS5000
1979	bool
1980	select SYS_HAS_CPU_BMIPS
1981
1982config SYS_HAS_CPU_XLR
1983	bool
1984
1985config SYS_HAS_CPU_XLP
1986	bool
1987
1988#
1989# CPU may reorder R->R, R->W, W->R, W->W
1990# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1991#
1992config WEAK_ORDERING
1993	bool
1994
1995#
1996# CPU may reorder reads and writes beyond LL/SC
1997# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1998#
1999config WEAK_REORDERING_BEYOND_LLSC
2000	bool
2001endmenu
2002
2003#
2004# These two indicate any level of the MIPS32 and MIPS64 architecture
2005#
2006config CPU_MIPS32
2007	bool
2008	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2009
2010config CPU_MIPS64
2011	bool
2012	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2013
2014#
2015# These two indicate the revision of the architecture, either Release 1 or Release 2
2016#
2017config CPU_MIPSR1
2018	bool
2019	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2020
2021config CPU_MIPSR2
2022	bool
2023	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2024	select CPU_HAS_RIXI
2025	select MIPS_SPRAM
2026
2027config CPU_MIPSR6
2028	bool
2029	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2030	select CPU_HAS_RIXI
2031	select HAVE_ARCH_BITREVERSE
2032	select MIPS_ASID_BITS_VARIABLE
2033	select MIPS_CRC_SUPPORT
2034	select MIPS_SPRAM
2035
2036config EVA
2037	bool
2038
2039config XPA
2040	bool
2041
2042config SYS_SUPPORTS_32BIT_KERNEL
2043	bool
2044config SYS_SUPPORTS_64BIT_KERNEL
2045	bool
2046config CPU_SUPPORTS_32BIT_KERNEL
2047	bool
2048config CPU_SUPPORTS_64BIT_KERNEL
2049	bool
2050config CPU_SUPPORTS_CPUFREQ
2051	bool
2052config CPU_SUPPORTS_ADDRWINCFG
2053	bool
2054config CPU_SUPPORTS_HUGEPAGES
2055	bool
2056config CPU_SUPPORTS_UNCACHED_ACCELERATED
2057	bool
2058config MIPS_PGD_C0_CONTEXT
2059	bool
2060	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2061
2062#
2063# Set to y for ptrace access to watch registers.
2064#
2065config HARDWARE_WATCHPOINTS
2066       bool
2067       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2068
2069menu "Kernel type"
2070
2071choice
2072	prompt "Kernel code model"
2073	help
2074	  You should only select this option if you have a workload that
2075	  actually benefits from 64-bit processing or if your machine has
2076	  large memory.  You will only be presented a single option in this
2077	  menu if your system does not support both 32-bit and 64-bit kernels.
2078
2079config 32BIT
2080	bool "32-bit kernel"
2081	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2082	select TRAD_SIGNALS
2083	help
2084	  Select this option if you want to build a 32-bit kernel.
2085
2086config 64BIT
2087	bool "64-bit kernel"
2088	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2089	help
2090	  Select this option if you want to build a 64-bit kernel.
2091
2092endchoice
2093
2094config KVM_GUEST
2095	bool "KVM Guest Kernel"
2096	depends on BROKEN_ON_SMP
2097	help
2098	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2099	  mode.
2100
2101config KVM_GUEST_TIMER_FREQ
2102	int "Count/Compare Timer Frequency (MHz)"
2103	depends on KVM_GUEST
2104	default 100
2105	help
2106	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2107	  emulation when determining guest CPU Frequency. Instead, the guest's
2108	  timer frequency is specified directly.
2109
2110config MIPS_VA_BITS_48
2111	bool "48 bits virtual memory"
2112	depends on 64BIT
2113	help
2114	  Support a maximum at least 48 bits of application virtual
2115	  memory.  Default is 40 bits or less, depending on the CPU.
2116	  For page sizes 16k and above, this option results in a small
2117	  memory overhead for page tables.  For 4k page size, a fourth
2118	  level of page tables is added which imposes both a memory
2119	  overhead as well as slower TLB fault handling.
2120
2121	  If unsure, say N.
2122
2123choice
2124	prompt "Kernel page size"
2125	default PAGE_SIZE_4KB
2126
2127config PAGE_SIZE_4KB
2128	bool "4kB"
2129	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2130	help
2131	 This option select the standard 4kB Linux page size.  On some
2132	 R3000-family processors this is the only available page size.  Using
2133	 4kB page size will minimize memory consumption and is therefore
2134	 recommended for low memory systems.
2135
2136config PAGE_SIZE_8KB
2137	bool "8kB"
2138	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2139	depends on !MIPS_VA_BITS_48
2140	help
2141	  Using 8kB page size will result in higher performance kernel at
2142	  the price of higher memory consumption.  This option is available
2143	  only on R8000 and cnMIPS processors.  Note that you will need a
2144	  suitable Linux distribution to support this.
2145
2146config PAGE_SIZE_16KB
2147	bool "16kB"
2148	depends on !CPU_R3000 && !CPU_TX39XX
2149	help
2150	  Using 16kB page size will result in higher performance kernel at
2151	  the price of higher memory consumption.  This option is available on
2152	  all non-R3000 family processors.  Note that you will need a suitable
2153	  Linux distribution to support this.
2154
2155config PAGE_SIZE_32KB
2156	bool "32kB"
2157	depends on CPU_CAVIUM_OCTEON
2158	depends on !MIPS_VA_BITS_48
2159	help
2160	  Using 32kB page size will result in higher performance kernel at
2161	  the price of higher memory consumption.  This option is available
2162	  only on cnMIPS cores.  Note that you will need a suitable Linux
2163	  distribution to support this.
2164
2165config PAGE_SIZE_64KB
2166	bool "64kB"
2167	depends on !CPU_R3000 && !CPU_TX39XX
2168	help
2169	  Using 64kB page size will result in higher performance kernel at
2170	  the price of higher memory consumption.  This option is available on
2171	  all non-R3000 family processor.  Not that at the time of this
2172	  writing this option is still high experimental.
2173
2174endchoice
2175
2176config FORCE_MAX_ZONEORDER
2177	int "Maximum zone order"
2178	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2179	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2180	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2181	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2182	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2183	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2184	range 11 64
2185	default "11"
2186	help
2187	  The kernel memory allocator divides physically contiguous memory
2188	  blocks into "zones", where each zone is a power of two number of
2189	  pages.  This option selects the largest power of two that the kernel
2190	  keeps in the memory allocator.  If you need to allocate very large
2191	  blocks of physically contiguous memory, then you may need to
2192	  increase this value.
2193
2194	  This config option is actually maximum order plus one. For example,
2195	  a value of 11 means that the largest free memory block is 2^10 pages.
2196
2197	  The page size is not necessarily 4KB.  Keep this in mind
2198	  when choosing a value for this option.
2199
2200config BOARD_SCACHE
2201	bool
2202
2203config IP22_CPU_SCACHE
2204	bool
2205	select BOARD_SCACHE
2206
2207#
2208# Support for a MIPS32 / MIPS64 style S-caches
2209#
2210config MIPS_CPU_SCACHE
2211	bool
2212	select BOARD_SCACHE
2213
2214config R5000_CPU_SCACHE
2215	bool
2216	select BOARD_SCACHE
2217
2218config RM7000_CPU_SCACHE
2219	bool
2220	select BOARD_SCACHE
2221
2222config SIBYTE_DMA_PAGEOPS
2223	bool "Use DMA to clear/copy pages"
2224	depends on CPU_SB1
2225	help
2226	  Instead of using the CPU to zero and copy pages, use a Data Mover
2227	  channel.  These DMA channels are otherwise unused by the standard
2228	  SiByte Linux port.  Seems to give a small performance benefit.
2229
2230config CPU_HAS_PREFETCH
2231	bool
2232
2233config CPU_GENERIC_DUMP_TLB
2234	bool
2235	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2236
2237config CPU_R4K_FPU
2238	bool
2239	default y if !(CPU_R3000 || CPU_TX39XX)
2240
2241config CPU_R4K_CACHE_TLB
2242	bool
2243	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2244
2245config MIPS_MT_SMP
2246	bool "MIPS MT SMP support (1 TC on each available VPE)"
2247	default y
2248	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2249	select CPU_MIPSR2_IRQ_VI
2250	select CPU_MIPSR2_IRQ_EI
2251	select SYNC_R4K
2252	select MIPS_MT
2253	select SMP
2254	select SMP_UP
2255	select SYS_SUPPORTS_SMP
2256	select SYS_SUPPORTS_SCHED_SMT
2257	select MIPS_PERF_SHARED_TC_COUNTERS
2258	help
2259	  This is a kernel model which is known as SMVP. This is supported
2260	  on cores with the MT ASE and uses the available VPEs to implement
2261	  virtual processors which supports SMP. This is equivalent to the
2262	  Intel Hyperthreading feature. For further information go to
2263	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2264
2265config MIPS_MT
2266	bool
2267
2268config SCHED_SMT
2269	bool "SMT (multithreading) scheduler support"
2270	depends on SYS_SUPPORTS_SCHED_SMT
2271	default n
2272	help
2273	  SMT scheduler support improves the CPU scheduler's decision making
2274	  when dealing with MIPS MT enabled cores at a cost of slightly
2275	  increased overhead in some places. If unsure say N here.
2276
2277config SYS_SUPPORTS_SCHED_SMT
2278	bool
2279
2280config SYS_SUPPORTS_MULTITHREADING
2281	bool
2282
2283config MIPS_MT_FPAFF
2284	bool "Dynamic FPU affinity for FP-intensive threads"
2285	default y
2286	depends on MIPS_MT_SMP
2287
2288config MIPSR2_TO_R6_EMULATOR
2289	bool "MIPS R2-to-R6 emulator"
2290	depends on CPU_MIPSR6
2291	default y
2292	help
2293	  Choose this option if you want to run non-R6 MIPS userland code.
2294	  Even if you say 'Y' here, the emulator will still be disabled by
2295	  default. You can enable it using the 'mipsr2emu' kernel option.
2296	  The only reason this is a build-time option is to save ~14K from the
2297	  final kernel image.
2298
2299config SYS_SUPPORTS_VPE_LOADER
2300	bool
2301	depends on SYS_SUPPORTS_MULTITHREADING
2302	help
2303	  Indicates that the platform supports the VPE loader, and provides
2304	  physical_memsize.
2305
2306config MIPS_VPE_LOADER
2307	bool "VPE loader support."
2308	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2309	select CPU_MIPSR2_IRQ_VI
2310	select CPU_MIPSR2_IRQ_EI
2311	select MIPS_MT
2312	help
2313	  Includes a loader for loading an elf relocatable object
2314	  onto another VPE and running it.
2315
2316config MIPS_VPE_LOADER_CMP
2317	bool
2318	default "y"
2319	depends on MIPS_VPE_LOADER && MIPS_CMP
2320
2321config MIPS_VPE_LOADER_MT
2322	bool
2323	default "y"
2324	depends on MIPS_VPE_LOADER && !MIPS_CMP
2325
2326config MIPS_VPE_LOADER_TOM
2327	bool "Load VPE program into memory hidden from linux"
2328	depends on MIPS_VPE_LOADER
2329	default y
2330	help
2331	  The loader can use memory that is present but has been hidden from
2332	  Linux using the kernel command line option "mem=xxMB". It's up to
2333	  you to ensure the amount you put in the option and the space your
2334	  program requires is less or equal to the amount physically present.
2335
2336config MIPS_VPE_APSP_API
2337	bool "Enable support for AP/SP API (RTLX)"
2338	depends on MIPS_VPE_LOADER
2339
2340config MIPS_VPE_APSP_API_CMP
2341	bool
2342	default "y"
2343	depends on MIPS_VPE_APSP_API && MIPS_CMP
2344
2345config MIPS_VPE_APSP_API_MT
2346	bool
2347	default "y"
2348	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2349
2350config MIPS_CMP
2351	bool "MIPS CMP framework support (DEPRECATED)"
2352	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2353	select SMP
2354	select SYNC_R4K
2355	select SYS_SUPPORTS_SMP
2356	select WEAK_ORDERING
2357	default n
2358	help
2359	  Select this if you are using a bootloader which implements the "CMP
2360	  framework" protocol (ie. YAMON) and want your kernel to make use of
2361	  its ability to start secondary CPUs.
2362
2363	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2364	  instead of this.
2365
2366config MIPS_CPS
2367	bool "MIPS Coherent Processing System support"
2368	depends on SYS_SUPPORTS_MIPS_CPS
2369	select MIPS_CM
2370	select MIPS_CPS_PM if HOTPLUG_CPU
2371	select SMP
2372	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2373	select SYS_SUPPORTS_HOTPLUG_CPU
2374	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2375	select SYS_SUPPORTS_SMP
2376	select WEAK_ORDERING
2377	help
2378	  Select this if you wish to run an SMP kernel across multiple cores
2379	  within a MIPS Coherent Processing System. When this option is
2380	  enabled the kernel will probe for other cores and boot them with
2381	  no external assistance. It is safe to enable this when hardware
2382	  support is unavailable.
2383
2384config MIPS_CPS_PM
2385	depends on MIPS_CPS
2386	bool
2387
2388config MIPS_CM
2389	bool
2390	select MIPS_CPC
2391
2392config MIPS_CPC
2393	bool
2394
2395config SB1_PASS_2_WORKAROUNDS
2396	bool
2397	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2398	default y
2399
2400config SB1_PASS_2_1_WORKAROUNDS
2401	bool
2402	depends on CPU_SB1 && CPU_SB1_PASS_2
2403	default y
2404
2405
2406choice
2407	prompt "SmartMIPS or microMIPS ASE support"
2408
2409config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2410	bool "None"
2411	help
2412	  Select this if you want neither microMIPS nor SmartMIPS support
2413
2414config CPU_HAS_SMARTMIPS
2415	depends on SYS_SUPPORTS_SMARTMIPS
2416	bool "SmartMIPS"
2417	help
2418	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2419	  increased security at both hardware and software level for
2420	  smartcards.  Enabling this option will allow proper use of the
2421	  SmartMIPS instructions by Linux applications.  However a kernel with
2422	  this option will not work on a MIPS core without SmartMIPS core.  If
2423	  you don't know you probably don't have SmartMIPS and should say N
2424	  here.
2425
2426config CPU_MICROMIPS
2427	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2428	bool "microMIPS"
2429	help
2430	  When this option is enabled the kernel will be built using the
2431	  microMIPS ISA
2432
2433endchoice
2434
2435config CPU_HAS_MSA
2436	bool "Support for the MIPS SIMD Architecture"
2437	depends on CPU_SUPPORTS_MSA
2438	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2439	help
2440	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2441	  and a set of SIMD instructions to operate on them. When this option
2442	  is enabled the kernel will support allocating & switching MSA
2443	  vector register contexts. If you know that your kernel will only be
2444	  running on CPUs which do not support MSA or that your userland will
2445	  not be making use of it then you may wish to say N here to reduce
2446	  the size & complexity of your kernel.
2447
2448	  If unsure, say Y.
2449
2450config CPU_HAS_WB
2451	bool
2452
2453config XKS01
2454	bool
2455
2456config CPU_HAS_RIXI
2457	bool
2458
2459#
2460# Vectored interrupt mode is an R2 feature
2461#
2462config CPU_MIPSR2_IRQ_VI
2463	bool
2464
2465#
2466# Extended interrupt mode is an R2 feature
2467#
2468config CPU_MIPSR2_IRQ_EI
2469	bool
2470
2471config CPU_HAS_SYNC
2472	bool
2473	depends on !CPU_R3000
2474	default y
2475
2476#
2477# CPU non-features
2478#
2479config CPU_DADDI_WORKAROUNDS
2480	bool
2481
2482config CPU_R4000_WORKAROUNDS
2483	bool
2484	select CPU_R4400_WORKAROUNDS
2485
2486config CPU_R4400_WORKAROUNDS
2487	bool
2488
2489config MIPS_ASID_SHIFT
2490	int
2491	default 6 if CPU_R3000 || CPU_TX39XX
2492	default 4 if CPU_R8000
2493	default 0
2494
2495config MIPS_ASID_BITS
2496	int
2497	default 0 if MIPS_ASID_BITS_VARIABLE
2498	default 6 if CPU_R3000 || CPU_TX39XX
2499	default 8
2500
2501config MIPS_ASID_BITS_VARIABLE
2502	bool
2503
2504config MIPS_CRC_SUPPORT
2505	bool
2506
2507#
2508# - Highmem only makes sense for the 32-bit kernel.
2509# - The current highmem code will only work properly on physically indexed
2510#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2511#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2512#   moment we protect the user and offer the highmem option only on machines
2513#   where it's known to be safe.  This will not offer highmem on a few systems
2514#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2515#   indexed CPUs but we're playing safe.
2516# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2517#   know they might have memory configurations that could make use of highmem
2518#   support.
2519#
2520config HIGHMEM
2521	bool "High Memory Support"
2522	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2523
2524config CPU_SUPPORTS_HIGHMEM
2525	bool
2526
2527config SYS_SUPPORTS_HIGHMEM
2528	bool
2529
2530config SYS_SUPPORTS_SMARTMIPS
2531	bool
2532
2533config SYS_SUPPORTS_MICROMIPS
2534	bool
2535
2536config SYS_SUPPORTS_MIPS16
2537	bool
2538	help
2539	  This option must be set if a kernel might be executed on a MIPS16-
2540	  enabled CPU even if MIPS16 is not actually being used.  In other
2541	  words, it makes the kernel MIPS16-tolerant.
2542
2543config CPU_SUPPORTS_MSA
2544	bool
2545
2546config ARCH_FLATMEM_ENABLE
2547	def_bool y
2548	depends on !NUMA && !CPU_LOONGSON2
2549
2550config ARCH_DISCONTIGMEM_ENABLE
2551	bool
2552	default y if SGI_IP27
2553	help
2554	  Say Y to support efficient handling of discontiguous physical memory,
2555	  for architectures which are either NUMA (Non-Uniform Memory Access)
2556	  or have huge holes in the physical address space for other reasons.
2557	  See <file:Documentation/vm/numa.rst> for more.
2558
2559config ARCH_SPARSEMEM_ENABLE
2560	bool
2561	select SPARSEMEM_STATIC
2562
2563config NUMA
2564	bool "NUMA Support"
2565	depends on SYS_SUPPORTS_NUMA
2566	help
2567	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2568	  Access).  This option improves performance on systems with more
2569	  than two nodes; on two node systems it is generally better to
2570	  leave it disabled; on single node systems disable this option
2571	  disabled.
2572
2573config SYS_SUPPORTS_NUMA
2574	bool
2575
2576config RELOCATABLE
2577	bool "Relocatable kernel"
2578	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2579	help
2580	  This builds a kernel image that retains relocation information
2581	  so it can be loaded someplace besides the default 1MB.
2582	  The relocations make the kernel binary about 15% larger,
2583	  but are discarded at runtime
2584
2585config RELOCATION_TABLE_SIZE
2586	hex "Relocation table size"
2587	depends on RELOCATABLE
2588	range 0x0 0x01000000
2589	default "0x00100000"
2590	---help---
2591	  A table of relocation data will be appended to the kernel binary
2592	  and parsed at boot to fix up the relocated kernel.
2593
2594	  This option allows the amount of space reserved for the table to be
2595	  adjusted, although the default of 1Mb should be ok in most cases.
2596
2597	  The build will fail and a valid size suggested if this is too small.
2598
2599	  If unsure, leave at the default value.
2600
2601config RANDOMIZE_BASE
2602	bool "Randomize the address of the kernel image"
2603	depends on RELOCATABLE
2604	---help---
2605	   Randomizes the physical and virtual address at which the
2606	   kernel image is loaded, as a security feature that
2607	   deters exploit attempts relying on knowledge of the location
2608	   of kernel internals.
2609
2610	   Entropy is generated using any coprocessor 0 registers available.
2611
2612	   The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2613
2614	   If unsure, say N.
2615
2616config RANDOMIZE_BASE_MAX_OFFSET
2617	hex "Maximum kASLR offset" if EXPERT
2618	depends on RANDOMIZE_BASE
2619	range 0x0 0x40000000 if EVA || 64BIT
2620	range 0x0 0x08000000
2621	default "0x01000000"
2622	---help---
2623	  When kASLR is active, this provides the maximum offset that will
2624	  be applied to the kernel image. It should be set according to the
2625	  amount of physical RAM available in the target system minus
2626	  PHYSICAL_START and must be a power of 2.
2627
2628	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2629	  EVA or 64-bit. The default is 16Mb.
2630
2631config NODES_SHIFT
2632	int
2633	default "6"
2634	depends on NEED_MULTIPLE_NODES
2635
2636config HW_PERF_EVENTS
2637	bool "Enable hardware performance counter support for perf events"
2638	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2639	default y
2640	help
2641	  Enable hardware performance counter support for perf events. If
2642	  disabled, perf events will use software events only.
2643
2644config SMP
2645	bool "Multi-Processing support"
2646	depends on SYS_SUPPORTS_SMP
2647	help
2648	  This enables support for systems with more than one CPU. If you have
2649	  a system with only one CPU, say N. If you have a system with more
2650	  than one CPU, say Y.
2651
2652	  If you say N here, the kernel will run on uni- and multiprocessor
2653	  machines, but will use only one CPU of a multiprocessor machine. If
2654	  you say Y here, the kernel will run on many, but not all,
2655	  uniprocessor machines. On a uniprocessor machine, the kernel
2656	  will run faster if you say N here.
2657
2658	  People using multiprocessor machines who say Y here should also say
2659	  Y to "Enhanced Real Time Clock Support", below.
2660
2661	  See also the SMP-HOWTO available at
2662	  <http://www.tldp.org/docs.html#howto>.
2663
2664	  If you don't know what to do here, say N.
2665
2666config HOTPLUG_CPU
2667	bool "Support for hot-pluggable CPUs"
2668	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2669	help
2670	  Say Y here to allow turning CPUs off and on. CPUs can be
2671	  controlled through /sys/devices/system/cpu.
2672	  (Note: power management support will enable this option
2673	    automatically on SMP systems. )
2674	  Say N if you want to disable CPU hotplug.
2675
2676config SMP_UP
2677	bool
2678
2679config SYS_SUPPORTS_MIPS_CMP
2680	bool
2681
2682config SYS_SUPPORTS_MIPS_CPS
2683	bool
2684
2685config SYS_SUPPORTS_SMP
2686	bool
2687
2688config NR_CPUS_DEFAULT_4
2689	bool
2690
2691config NR_CPUS_DEFAULT_8
2692	bool
2693
2694config NR_CPUS_DEFAULT_16
2695	bool
2696
2697config NR_CPUS_DEFAULT_32
2698	bool
2699
2700config NR_CPUS_DEFAULT_64
2701	bool
2702
2703config NR_CPUS
2704	int "Maximum number of CPUs (2-256)"
2705	range 2 256
2706	depends on SMP
2707	default "4" if NR_CPUS_DEFAULT_4
2708	default "8" if NR_CPUS_DEFAULT_8
2709	default "16" if NR_CPUS_DEFAULT_16
2710	default "32" if NR_CPUS_DEFAULT_32
2711	default "64" if NR_CPUS_DEFAULT_64
2712	help
2713	  This allows you to specify the maximum number of CPUs which this
2714	  kernel will support.  The maximum supported value is 32 for 32-bit
2715	  kernel and 64 for 64-bit kernels; the minimum value which makes
2716	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2717	  and 2 for all others.
2718
2719	  This is purely to save memory - each supported CPU adds
2720	  approximately eight kilobytes to the kernel image.  For best
2721	  performance should round up your number of processors to the next
2722	  power of two.
2723
2724config MIPS_PERF_SHARED_TC_COUNTERS
2725	bool
2726
2727config MIPS_NR_CPU_NR_MAP_1024
2728	bool
2729
2730config MIPS_NR_CPU_NR_MAP
2731	int
2732	depends on SMP
2733	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2734	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2735
2736#
2737# Timer Interrupt Frequency Configuration
2738#
2739
2740choice
2741	prompt "Timer frequency"
2742	default HZ_250
2743	help
2744	 Allows the configuration of the timer frequency.
2745
2746	config HZ_24
2747		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2748
2749	config HZ_48
2750		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2751
2752	config HZ_100
2753		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2754
2755	config HZ_128
2756		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2757
2758	config HZ_250
2759		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2760
2761	config HZ_256
2762		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2763
2764	config HZ_1000
2765		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2766
2767	config HZ_1024
2768		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2769
2770endchoice
2771
2772config SYS_SUPPORTS_24HZ
2773	bool
2774
2775config SYS_SUPPORTS_48HZ
2776	bool
2777
2778config SYS_SUPPORTS_100HZ
2779	bool
2780
2781config SYS_SUPPORTS_128HZ
2782	bool
2783
2784config SYS_SUPPORTS_250HZ
2785	bool
2786
2787config SYS_SUPPORTS_256HZ
2788	bool
2789
2790config SYS_SUPPORTS_1000HZ
2791	bool
2792
2793config SYS_SUPPORTS_1024HZ
2794	bool
2795
2796config SYS_SUPPORTS_ARBIT_HZ
2797	bool
2798	default y if !SYS_SUPPORTS_24HZ && \
2799		     !SYS_SUPPORTS_48HZ && \
2800		     !SYS_SUPPORTS_100HZ && \
2801		     !SYS_SUPPORTS_128HZ && \
2802		     !SYS_SUPPORTS_250HZ && \
2803		     !SYS_SUPPORTS_256HZ && \
2804		     !SYS_SUPPORTS_1000HZ && \
2805		     !SYS_SUPPORTS_1024HZ
2806
2807config HZ
2808	int
2809	default 24 if HZ_24
2810	default 48 if HZ_48
2811	default 100 if HZ_100
2812	default 128 if HZ_128
2813	default 250 if HZ_250
2814	default 256 if HZ_256
2815	default 1000 if HZ_1000
2816	default 1024 if HZ_1024
2817
2818config SCHED_HRTICK
2819	def_bool HIGH_RES_TIMERS
2820
2821config KEXEC
2822	bool "Kexec system call"
2823	select KEXEC_CORE
2824	help
2825	  kexec is a system call that implements the ability to shutdown your
2826	  current kernel, and to start another kernel.  It is like a reboot
2827	  but it is independent of the system firmware.   And like a reboot
2828	  you can start any kernel with it, not just Linux.
2829
2830	  The name comes from the similarity to the exec system call.
2831
2832	  It is an ongoing process to be certain the hardware in a machine
2833	  is properly shutdown, so do not be surprised if this code does not
2834	  initially work for you.  As of this writing the exact hardware
2835	  interface is strongly in flux, so no good recommendation can be
2836	  made.
2837
2838config CRASH_DUMP
2839	bool "Kernel crash dumps"
2840	help
2841	  Generate crash dump after being started by kexec.
2842	  This should be normally only set in special crash dump kernels
2843	  which are loaded in the main kernel with kexec-tools into
2844	  a specially reserved region and then later executed after
2845	  a crash by kdump/kexec. The crash dump kernel must be compiled
2846	  to a memory address not used by the main kernel or firmware using
2847	  PHYSICAL_START.
2848
2849config PHYSICAL_START
2850	hex "Physical address where the kernel is loaded"
2851	default "0xffffffff84000000"
2852	depends on CRASH_DUMP
2853	help
2854	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2855	  If you plan to use kernel for capturing the crash dump change
2856	  this value to start of the reserved region (the "X" value as
2857	  specified in the "crashkernel=YM@XM" command line boot parameter
2858	  passed to the panic-ed kernel).
2859
2860config SECCOMP
2861	bool "Enable seccomp to safely compute untrusted bytecode"
2862	depends on PROC_FS
2863	default y
2864	help
2865	  This kernel feature is useful for number crunching applications
2866	  that may need to compute untrusted bytecode during their
2867	  execution. By using pipes or other transports made available to
2868	  the process as file descriptors supporting the read/write
2869	  syscalls, it's possible to isolate those applications in
2870	  their own address space using seccomp. Once seccomp is
2871	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2872	  and the task is only allowed to execute a few safe syscalls
2873	  defined by each seccomp mode.
2874
2875	  If unsure, say Y. Only embedded should say N here.
2876
2877config MIPS_O32_FP64_SUPPORT
2878	bool "Support for O32 binaries using 64-bit FP"
2879	depends on 32BIT || MIPS32_O32
2880	help
2881	  When this is enabled, the kernel will support use of 64-bit floating
2882	  point registers with binaries using the O32 ABI along with the
2883	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2884	  32-bit MIPS systems this support is at the cost of increasing the
2885	  size and complexity of the compiled FPU emulator. Thus if you are
2886	  running a MIPS32 system and know that none of your userland binaries
2887	  will require 64-bit floating point, you may wish to reduce the size
2888	  of your kernel & potentially improve FP emulation performance by
2889	  saying N here.
2890
2891	  Although binutils currently supports use of this flag the details
2892	  concerning its effect upon the O32 ABI in userland are still being
2893	  worked on. In order to avoid userland becoming dependant upon current
2894	  behaviour before the details have been finalised, this option should
2895	  be considered experimental and only enabled by those working upon
2896	  said details.
2897
2898	  If unsure, say N.
2899
2900config USE_OF
2901	bool
2902	select OF
2903	select OF_EARLY_FLATTREE
2904	select IRQ_DOMAIN
2905
2906config BUILTIN_DTB
2907	bool
2908
2909choice
2910	prompt "Kernel appended dtb support" if USE_OF
2911	default MIPS_NO_APPENDED_DTB
2912
2913	config MIPS_NO_APPENDED_DTB
2914		bool "None"
2915		help
2916		  Do not enable appended dtb support.
2917
2918	config MIPS_ELF_APPENDED_DTB
2919		bool "vmlinux"
2920		help
2921		  With this option, the boot code will look for a device tree binary
2922		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2923		  it is empty and the DTB can be appended using binutils command
2924		  objcopy:
2925
2926		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2927
2928		  This is meant as a backward compatiblity convenience for those
2929		  systems with a bootloader that can't be upgraded to accommodate
2930		  the documented boot protocol using a device tree.
2931
2932	config MIPS_RAW_APPENDED_DTB
2933		bool "vmlinux.bin or vmlinuz.bin"
2934		help
2935		  With this option, the boot code will look for a device tree binary
2936		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2937		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2938
2939		  This is meant as a backward compatibility convenience for those
2940		  systems with a bootloader that can't be upgraded to accommodate
2941		  the documented boot protocol using a device tree.
2942
2943		  Beware that there is very little in terms of protection against
2944		  this option being confused by leftover garbage in memory that might
2945		  look like a DTB header after a reboot if no actual DTB is appended
2946		  to vmlinux.bin.  Do not leave this option active in a production kernel
2947		  if you don't intend to always append a DTB.
2948endchoice
2949
2950choice
2951	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2952	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2953					 !MIPS_MALTA && \
2954					 !CAVIUM_OCTEON_SOC
2955	default MIPS_CMDLINE_FROM_BOOTLOADER
2956
2957	config MIPS_CMDLINE_FROM_DTB
2958		depends on USE_OF
2959		bool "Dtb kernel arguments if available"
2960
2961	config MIPS_CMDLINE_DTB_EXTEND
2962		depends on USE_OF
2963		bool "Extend dtb kernel arguments with bootloader arguments"
2964
2965	config MIPS_CMDLINE_FROM_BOOTLOADER
2966		bool "Bootloader kernel arguments if available"
2967
2968	config MIPS_CMDLINE_BUILTIN_EXTEND
2969		depends on CMDLINE_BOOL
2970		bool "Extend builtin kernel arguments with bootloader arguments"
2971endchoice
2972
2973endmenu
2974
2975config LOCKDEP_SUPPORT
2976	bool
2977	default y
2978
2979config STACKTRACE_SUPPORT
2980	bool
2981	default y
2982
2983config HAVE_LATENCYTOP_SUPPORT
2984	bool
2985	default y
2986
2987config PGTABLE_LEVELS
2988	int
2989	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
2990	default 3 if 64BIT && !PAGE_SIZE_64KB
2991	default 2
2992
2993config MIPS_AUTO_PFN_OFFSET
2994	bool
2995
2996menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2997
2998config HW_HAS_EISA
2999	bool
3000config HW_HAS_PCI
3001	bool
3002
3003config PCI
3004	bool "Support for PCI controller"
3005	depends on HW_HAS_PCI
3006	select PCI_DOMAINS
3007	help
3008	  Find out whether you have a PCI motherboard. PCI is the name of a
3009	  bus system, i.e. the way the CPU talks to the other stuff inside
3010	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3011	  say Y, otherwise N.
3012
3013config HT_PCI
3014	bool "Support for HT-linked PCI"
3015	default y
3016	depends on CPU_LOONGSON3
3017	select PCI
3018	select PCI_DOMAINS
3019	help
3020	  Loongson family machines use Hyper-Transport bus for inter-core
3021	  connection and device connection. The PCI bus is a subordinate
3022	  linked at HT. Choose Y for Loongson-3 based machines.
3023
3024config PCI_DOMAINS
3025	bool
3026
3027config PCI_DOMAINS_GENERIC
3028	bool
3029
3030config PCI_DRIVERS_GENERIC
3031	select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3032	bool
3033
3034config PCI_DRIVERS_LEGACY
3035	def_bool !PCI_DRIVERS_GENERIC
3036	select NO_GENERIC_PCI_IOPORT_MAP
3037
3038source "drivers/pci/Kconfig"
3039
3040#
3041# ISA support is now enabled via select.  Too many systems still have the one
3042# or other ISA chip on the board that users don't know about so don't expect
3043# users to choose the right thing ...
3044#
3045config ISA
3046	bool
3047
3048config EISA
3049	bool "EISA support"
3050	depends on HW_HAS_EISA
3051	select ISA
3052	select GENERIC_ISA_DMA
3053	---help---
3054	  The Extended Industry Standard Architecture (EISA) bus was
3055	  developed as an open alternative to the IBM MicroChannel bus.
3056
3057	  The EISA bus provided some of the features of the IBM MicroChannel
3058	  bus while maintaining backward compatibility with cards made for
3059	  the older ISA bus.  The EISA bus saw limited use between 1988 and
3060	  1995 when it was made obsolete by the PCI bus.
3061
3062	  Say Y here if you are building a kernel for an EISA-based machine.
3063
3064	  Otherwise, say N.
3065
3066source "drivers/eisa/Kconfig"
3067
3068config TC
3069	bool "TURBOchannel support"
3070	depends on MACH_DECSTATION
3071	help
3072	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3073	  processors.  TURBOchannel programming specifications are available
3074	  at:
3075	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3076	  and:
3077	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3078	  Linux driver support status is documented at:
3079	  <http://www.linux-mips.org/wiki/DECstation>
3080
3081config MMU
3082	bool
3083	default y
3084
3085config ARCH_MMAP_RND_BITS_MIN
3086	default 12 if 64BIT
3087	default 8
3088
3089config ARCH_MMAP_RND_BITS_MAX
3090	default 18 if 64BIT
3091	default 15
3092
3093config ARCH_MMAP_RND_COMPAT_BITS_MIN
3094       default 8
3095
3096config ARCH_MMAP_RND_COMPAT_BITS_MAX
3097       default 15
3098
3099config I8253
3100	bool
3101	select CLKSRC_I8253
3102	select CLKEVT_I8253
3103	select MIPS_EXTERNAL_TIMER
3104
3105config ZONE_DMA
3106	bool
3107
3108config ZONE_DMA32
3109	bool
3110
3111source "drivers/pcmcia/Kconfig"
3112
3113config HAS_RAPIDIO
3114	bool
3115	default n
3116
3117config RAPIDIO
3118	tristate "RapidIO support"
3119	depends on HAS_RAPIDIO || PCI
3120	help
3121	  If you say Y here, the kernel will include drivers and
3122	  infrastructure code to support RapidIO interconnect devices.
3123
3124source "drivers/rapidio/Kconfig"
3125
3126endmenu
3127
3128config TRAD_SIGNALS
3129	bool
3130
3131config MIPS32_COMPAT
3132	bool
3133
3134config COMPAT
3135	bool
3136
3137config SYSVIPC_COMPAT
3138	bool
3139
3140config MIPS32_O32
3141	bool "Kernel support for o32 binaries"
3142	depends on 64BIT
3143	select ARCH_WANT_OLD_COMPAT_IPC
3144	select COMPAT
3145	select MIPS32_COMPAT
3146	select SYSVIPC_COMPAT if SYSVIPC
3147	help
3148	  Select this option if you want to run o32 binaries.  These are pure
3149	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3150	  existing binaries are in this format.
3151
3152	  If unsure, say Y.
3153
3154config MIPS32_N32
3155	bool "Kernel support for n32 binaries"
3156	depends on 64BIT
3157	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3158	select COMPAT
3159	select MIPS32_COMPAT
3160	select SYSVIPC_COMPAT if SYSVIPC
3161	help
3162	  Select this option if you want to run n32 binaries.  These are
3163	  64-bit binaries using 32-bit quantities for addressing and certain
3164	  data that would normally be 64-bit.  They are used in special
3165	  cases.
3166
3167	  If unsure, say N.
3168
3169config BINFMT_ELF32
3170	bool
3171	default y if MIPS32_O32 || MIPS32_N32
3172	select ELFCORE
3173
3174menu "Power management options"
3175
3176config ARCH_HIBERNATION_POSSIBLE
3177	def_bool y
3178	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3179
3180config ARCH_SUSPEND_POSSIBLE
3181	def_bool y
3182	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3183
3184source "kernel/power/Kconfig"
3185
3186endmenu
3187
3188config MIPS_EXTERNAL_TIMER
3189	bool
3190
3191menu "CPU Power Management"
3192
3193if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3194source "drivers/cpufreq/Kconfig"
3195endif
3196
3197source "drivers/cpuidle/Kconfig"
3198
3199endmenu
3200
3201source "drivers/firmware/Kconfig"
3202
3203source "arch/mips/kvm/Kconfig"
3204