xref: /linux/arch/mips/Kconfig (revision b1d29ba82cf2bc784f4c963ddd6a2cf29e229b33)
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
798config SIBYTE_LITTLESUR
799	bool "Sibyte BCM91250C2-LittleSur"
800	select BOOT_ELF32
801	select HAVE_PATA_PLATFORM
802	select SIBYTE_SB1250
803	select SWAP_IO_SPACE
804	select SYS_HAS_CPU_SB1
805	select SYS_SUPPORTS_BIG_ENDIAN
806	select SYS_SUPPORTS_HIGHMEM
807	select SYS_SUPPORTS_LITTLE_ENDIAN
808
809config SIBYTE_SENTOSA
810	bool "Sibyte BCM91250E-Sentosa"
811	select BOOT_ELF32
812	select SIBYTE_SB1250
813	select SWAP_IO_SPACE
814	select SYS_HAS_CPU_SB1
815	select SYS_SUPPORTS_BIG_ENDIAN
816	select SYS_SUPPORTS_LITTLE_ENDIAN
817
818config SIBYTE_BIGSUR
819	bool "Sibyte BCM91480B-BigSur"
820	select BOOT_ELF32
821	select NR_CPUS_DEFAULT_4
822	select SIBYTE_BCM1x80
823	select SWAP_IO_SPACE
824	select SYS_HAS_CPU_SB1
825	select SYS_SUPPORTS_BIG_ENDIAN
826	select SYS_SUPPORTS_HIGHMEM
827	select SYS_SUPPORTS_LITTLE_ENDIAN
828	select ZONE_DMA32 if 64BIT
829
830config SNI_RM
831	bool "SNI RM200/300/400"
832	select FW_ARC if CPU_LITTLE_ENDIAN
833	select FW_ARC32 if CPU_LITTLE_ENDIAN
834	select FW_SNIPROM if CPU_BIG_ENDIAN
835	select ARCH_MAY_HAVE_PC_FDC
836	select ARCH_MIGHT_HAVE_PC_PARPORT
837	select ARCH_MIGHT_HAVE_PC_SERIO
838	select BOOT_ELF32
839	select CEVT_R4K
840	select CSRC_R4K
841	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
842	select DMA_NONCOHERENT
843	select GENERIC_ISA_DMA
844	select HAVE_PCSPKR_PLATFORM
845	select HW_HAS_EISA
846	select HW_HAS_PCI
847	select IRQ_MIPS_CPU
848	select I8253
849	select I8259
850	select ISA
851	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
852	select SYS_HAS_CPU_R4X00
853	select SYS_HAS_CPU_R5000
854	select SYS_HAS_CPU_R10000
855	select R5000_CPU_SCACHE
856	select SYS_HAS_EARLY_PRINTK
857	select SYS_SUPPORTS_32BIT_KERNEL
858	select SYS_SUPPORTS_64BIT_KERNEL
859	select SYS_SUPPORTS_BIG_ENDIAN
860	select SYS_SUPPORTS_HIGHMEM
861	select SYS_SUPPORTS_LITTLE_ENDIAN
862	help
863	  The SNI RM200/300/400 are MIPS-based machines manufactured by
864	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
865	  Technology and now in turn merged with Fujitsu.  Say Y here to
866	  support this machine type.
867
868config MACH_TX39XX
869	bool "Toshiba TX39 series based machines"
870
871config MACH_TX49XX
872	bool "Toshiba TX49 series based machines"
873
874config MIKROTIK_RB532
875	bool "Mikrotik RB532 boards"
876	select CEVT_R4K
877	select CSRC_R4K
878	select DMA_NONCOHERENT
879	select HW_HAS_PCI
880	select IRQ_MIPS_CPU
881	select SYS_HAS_CPU_MIPS32_R1
882	select SYS_SUPPORTS_32BIT_KERNEL
883	select SYS_SUPPORTS_LITTLE_ENDIAN
884	select SWAP_IO_SPACE
885	select BOOT_RAW
886	select GPIOLIB
887	select MIPS_L1_CACHE_SHIFT_4
888	help
889	  Support the Mikrotik(tm) RouterBoard 532 series,
890	  based on the IDT RC32434 SoC.
891
892config CAVIUM_OCTEON_SOC
893	bool "Cavium Networks Octeon SoC based boards"
894	select CEVT_R4K
895	select ARCH_HAS_PHYS_TO_DMA
896	select HAS_RAPIDIO
897	select PHYS_ADDR_T_64BIT
898	select SYS_SUPPORTS_64BIT_KERNEL
899	select SYS_SUPPORTS_BIG_ENDIAN
900	select EDAC_SUPPORT
901	select EDAC_ATOMIC_SCRUB
902	select SYS_SUPPORTS_LITTLE_ENDIAN
903	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
904	select SYS_HAS_EARLY_PRINTK
905	select SYS_HAS_CPU_CAVIUM_OCTEON
906	select HW_HAS_PCI
907	select ZONE_DMA32
908	select HOLES_IN_ZONE
909	select GPIOLIB
910	select LIBFDT
911	select USE_OF
912	select ARCH_SPARSEMEM_ENABLE
913	select SYS_SUPPORTS_SMP
914	select NR_CPUS_DEFAULT_64
915	select MIPS_NR_CPU_NR_MAP_1024
916	select BUILTIN_DTB
917	select MTD_COMPLEX_MAPPINGS
918	select SWIOTLB
919	select SYS_SUPPORTS_RELOCATABLE
920	help
921	  This option supports all of the Octeon reference boards from Cavium
922	  Networks. It builds a kernel that dynamically determines the Octeon
923	  CPU type and supports all known board reference implementations.
924	  Some of the supported boards are:
925		EBT3000
926		EBH3000
927		EBH3100
928		Thunder
929		Kodama
930		Hikari
931	  Say Y here for most Octeon reference boards.
932
933config NLM_XLR_BOARD
934	bool "Netlogic XLR/XLS based systems"
935	select BOOT_ELF32
936	select NLM_COMMON
937	select SYS_HAS_CPU_XLR
938	select SYS_SUPPORTS_SMP
939	select HW_HAS_PCI
940	select SWAP_IO_SPACE
941	select SYS_SUPPORTS_32BIT_KERNEL
942	select SYS_SUPPORTS_64BIT_KERNEL
943	select PHYS_ADDR_T_64BIT
944	select SYS_SUPPORTS_BIG_ENDIAN
945	select SYS_SUPPORTS_HIGHMEM
946	select NR_CPUS_DEFAULT_32
947	select CEVT_R4K
948	select CSRC_R4K
949	select IRQ_MIPS_CPU
950	select ZONE_DMA32 if 64BIT
951	select SYNC_R4K
952	select SYS_HAS_EARLY_PRINTK
953	select SYS_SUPPORTS_ZBOOT
954	select SYS_SUPPORTS_ZBOOT_UART16550
955	help
956	  Support for systems based on Netlogic XLR and XLS processors.
957	  Say Y here if you have a XLR or XLS based board.
958
959config NLM_XLP_BOARD
960	bool "Netlogic XLP based systems"
961	select BOOT_ELF32
962	select NLM_COMMON
963	select SYS_HAS_CPU_XLP
964	select SYS_SUPPORTS_SMP
965	select HW_HAS_PCI
966	select SYS_SUPPORTS_32BIT_KERNEL
967	select SYS_SUPPORTS_64BIT_KERNEL
968	select PHYS_ADDR_T_64BIT
969	select GPIOLIB
970	select SYS_SUPPORTS_BIG_ENDIAN
971	select SYS_SUPPORTS_LITTLE_ENDIAN
972	select SYS_SUPPORTS_HIGHMEM
973	select NR_CPUS_DEFAULT_32
974	select CEVT_R4K
975	select CSRC_R4K
976	select IRQ_MIPS_CPU
977	select ZONE_DMA32 if 64BIT
978	select SYNC_R4K
979	select SYS_HAS_EARLY_PRINTK
980	select USE_OF
981	select SYS_SUPPORTS_ZBOOT
982	select SYS_SUPPORTS_ZBOOT_UART16550
983	help
984	  This board is based on Netlogic XLP Processor.
985	  Say Y here if you have a XLP based board.
986
987config MIPS_PARAVIRT
988	bool "Para-Virtualized guest system"
989	select CEVT_R4K
990	select CSRC_R4K
991	select SYS_SUPPORTS_64BIT_KERNEL
992	select SYS_SUPPORTS_32BIT_KERNEL
993	select SYS_SUPPORTS_BIG_ENDIAN
994	select SYS_SUPPORTS_SMP
995	select NR_CPUS_DEFAULT_4
996	select SYS_HAS_EARLY_PRINTK
997	select SYS_HAS_CPU_MIPS32_R2
998	select SYS_HAS_CPU_MIPS64_R2
999	select SYS_HAS_CPU_CAVIUM_OCTEON
1000	select HW_HAS_PCI
1001	select SWAP_IO_SPACE
1002	help
1003	  This option supports guest running under ????
1004
1005endchoice
1006
1007source "arch/mips/alchemy/Kconfig"
1008source "arch/mips/ath25/Kconfig"
1009source "arch/mips/ath79/Kconfig"
1010source "arch/mips/bcm47xx/Kconfig"
1011source "arch/mips/bcm63xx/Kconfig"
1012source "arch/mips/bmips/Kconfig"
1013source "arch/mips/generic/Kconfig"
1014source "arch/mips/jazz/Kconfig"
1015source "arch/mips/jz4740/Kconfig"
1016source "arch/mips/lantiq/Kconfig"
1017source "arch/mips/lasat/Kconfig"
1018source "arch/mips/pic32/Kconfig"
1019source "arch/mips/pistachio/Kconfig"
1020source "arch/mips/pmcs-msp71xx/Kconfig"
1021source "arch/mips/ralink/Kconfig"
1022source "arch/mips/sgi-ip27/Kconfig"
1023source "arch/mips/sibyte/Kconfig"
1024source "arch/mips/txx9/Kconfig"
1025source "arch/mips/vr41xx/Kconfig"
1026source "arch/mips/cavium-octeon/Kconfig"
1027source "arch/mips/loongson32/Kconfig"
1028source "arch/mips/loongson64/Kconfig"
1029source "arch/mips/netlogic/Kconfig"
1030source "arch/mips/paravirt/Kconfig"
1031
1032endmenu
1033
1034config RWSEM_GENERIC_SPINLOCK
1035	bool
1036	default y
1037
1038config RWSEM_XCHGADD_ALGORITHM
1039	bool
1040
1041config GENERIC_HWEIGHT
1042	bool
1043	default y
1044
1045config GENERIC_CALIBRATE_DELAY
1046	bool
1047	default y
1048
1049config SCHED_OMIT_FRAME_POINTER
1050	bool
1051	default y
1052
1053#
1054# Select some configuration options automatically based on user selections.
1055#
1056config FW_ARC
1057	bool
1058
1059config ARCH_MAY_HAVE_PC_FDC
1060	bool
1061
1062config BOOT_RAW
1063	bool
1064
1065config CEVT_BCM1480
1066	bool
1067
1068config CEVT_DS1287
1069	bool
1070
1071config CEVT_GT641XX
1072	bool
1073
1074config CEVT_R4K
1075	bool
1076
1077config CEVT_SB1250
1078	bool
1079
1080config CEVT_TXX9
1081	bool
1082
1083config CSRC_BCM1480
1084	bool
1085
1086config CSRC_IOASIC
1087	bool
1088
1089config CSRC_R4K
1090	bool
1091
1092config CSRC_SB1250
1093	bool
1094
1095config MIPS_CLOCK_VSYSCALL
1096	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1097
1098config GPIO_TXX9
1099	select GPIOLIB
1100	bool
1101
1102config FW_CFE
1103	bool
1104
1105config ARCH_SUPPORTS_UPROBES
1106	bool
1107
1108config DMA_MAYBE_COHERENT
1109	select ARCH_HAS_DMA_COHERENCE_H
1110	select DMA_NONCOHERENT
1111	bool
1112
1113config DMA_PERDEV_COHERENT
1114	bool
1115	select DMA_NONCOHERENT
1116
1117config DMA_NONCOHERENT
1118	bool
1119	select ARCH_HAS_DMA_MMAP_PGPROT
1120	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1121	select ARCH_HAS_SYNC_DMA_FOR_CPU
1122	select NEED_DMA_MAP_STATE
1123	select ARCH_HAS_DMA_COHERENT_TO_PFN
1124	select DMA_NONCOHERENT_CACHE_SYNC
1125
1126config SYS_HAS_EARLY_PRINTK
1127	bool
1128
1129config SYS_SUPPORTS_HOTPLUG_CPU
1130	bool
1131
1132config MIPS_BONITO64
1133	bool
1134
1135config MIPS_MSC
1136	bool
1137
1138config MIPS_NILE4
1139	bool
1140
1141config SYNC_R4K
1142	bool
1143
1144config MIPS_MACHINE
1145	def_bool n
1146
1147config NO_IOPORT_MAP
1148	def_bool n
1149
1150config GENERIC_CSUM
1151	bool
1152
1153config GENERIC_ISA_DMA
1154	bool
1155	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1156	select ISA_DMA_API
1157
1158config GENERIC_ISA_DMA_SUPPORT_BROKEN
1159	bool
1160	select GENERIC_ISA_DMA
1161
1162config ISA_DMA_API
1163	bool
1164
1165config HOLES_IN_ZONE
1166	bool
1167
1168config SYS_SUPPORTS_RELOCATABLE
1169	bool
1170	help
1171	 Selected if the platform supports relocating the kernel.
1172	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1173	 to allow access to command line and entropy sources.
1174
1175config MIPS_CBPF_JIT
1176	def_bool y
1177	depends on BPF_JIT && HAVE_CBPF_JIT
1178
1179config MIPS_EBPF_JIT
1180	def_bool y
1181	depends on BPF_JIT && HAVE_EBPF_JIT
1182
1183
1184#
1185# Endianness selection.  Sufficiently obscure so many users don't know what to
1186# answer,so we try hard to limit the available choices.  Also the use of a
1187# choice statement should be more obvious to the user.
1188#
1189choice
1190	prompt "Endianness selection"
1191	help
1192	  Some MIPS machines can be configured for either little or big endian
1193	  byte order. These modes require different kernels and a different
1194	  Linux distribution.  In general there is one preferred byteorder for a
1195	  particular system but some systems are just as commonly used in the
1196	  one or the other endianness.
1197
1198config CPU_BIG_ENDIAN
1199	bool "Big endian"
1200	depends on SYS_SUPPORTS_BIG_ENDIAN
1201
1202config CPU_LITTLE_ENDIAN
1203	bool "Little endian"
1204	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1205
1206endchoice
1207
1208config EXPORT_UASM
1209	bool
1210
1211config SYS_SUPPORTS_APM_EMULATION
1212	bool
1213
1214config SYS_SUPPORTS_BIG_ENDIAN
1215	bool
1216
1217config SYS_SUPPORTS_LITTLE_ENDIAN
1218	bool
1219
1220config SYS_SUPPORTS_HUGETLBFS
1221	bool
1222	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1223	default y
1224
1225config MIPS_HUGE_TLB_SUPPORT
1226	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1227
1228config IRQ_CPU_RM7K
1229	bool
1230
1231config IRQ_MSP_SLP
1232	bool
1233
1234config IRQ_MSP_CIC
1235	bool
1236
1237config IRQ_TXX9
1238	bool
1239
1240config IRQ_GT641XX
1241	bool
1242
1243config PCI_GT64XXX_PCI0
1244	bool
1245
1246config NO_EXCEPT_FILL
1247	bool
1248
1249config SOC_EMMA2RH
1250	bool
1251	select CEVT_R4K
1252	select CSRC_R4K
1253	select DMA_NONCOHERENT
1254	select IRQ_MIPS_CPU
1255	select SWAP_IO_SPACE
1256	select SYS_HAS_CPU_R5500
1257	select SYS_SUPPORTS_32BIT_KERNEL
1258	select SYS_SUPPORTS_64BIT_KERNEL
1259	select SYS_SUPPORTS_BIG_ENDIAN
1260
1261config SOC_PNX833X
1262	bool
1263	select CEVT_R4K
1264	select CSRC_R4K
1265	select IRQ_MIPS_CPU
1266	select DMA_NONCOHERENT
1267	select SYS_HAS_CPU_MIPS32_R2
1268	select SYS_SUPPORTS_32BIT_KERNEL
1269	select SYS_SUPPORTS_LITTLE_ENDIAN
1270	select SYS_SUPPORTS_BIG_ENDIAN
1271	select SYS_SUPPORTS_MIPS16
1272	select CPU_MIPSR2_IRQ_VI
1273
1274config SOC_PNX8335
1275	bool
1276	select SOC_PNX833X
1277
1278config MIPS_SPRAM
1279	bool
1280
1281config SWAP_IO_SPACE
1282	bool
1283
1284config SGI_HAS_INDYDOG
1285	bool
1286
1287config SGI_HAS_HAL2
1288	bool
1289
1290config SGI_HAS_SEEQ
1291	bool
1292
1293config SGI_HAS_WD93
1294	bool
1295
1296config SGI_HAS_ZILOG
1297	bool
1298
1299config SGI_HAS_I8042
1300	bool
1301
1302config DEFAULT_SGI_PARTITION
1303	bool
1304
1305config FW_ARC32
1306	bool
1307
1308config FW_SNIPROM
1309	bool
1310
1311config BOOT_ELF32
1312	bool
1313
1314config MIPS_L1_CACHE_SHIFT_4
1315	bool
1316
1317config MIPS_L1_CACHE_SHIFT_5
1318	bool
1319
1320config MIPS_L1_CACHE_SHIFT_6
1321	bool
1322
1323config MIPS_L1_CACHE_SHIFT_7
1324	bool
1325
1326config MIPS_L1_CACHE_SHIFT
1327	int
1328	default "7" if MIPS_L1_CACHE_SHIFT_7
1329	default "6" if MIPS_L1_CACHE_SHIFT_6
1330	default "5" if MIPS_L1_CACHE_SHIFT_5
1331	default "4" if MIPS_L1_CACHE_SHIFT_4
1332	default "5"
1333
1334config HAVE_STD_PC_SERIAL_PORT
1335	bool
1336
1337config ARC_CONSOLE
1338	bool "ARC console support"
1339	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1340
1341config ARC_MEMORY
1342	bool
1343	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1344	default y
1345
1346config ARC_PROMLIB
1347	bool
1348	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1349	default y
1350
1351config FW_ARC64
1352	bool
1353
1354config BOOT_ELF64
1355	bool
1356
1357menu "CPU selection"
1358
1359choice
1360	prompt "CPU type"
1361	default CPU_R4X00
1362
1363config CPU_LOONGSON3
1364	bool "Loongson 3 CPU"
1365	depends on SYS_HAS_CPU_LOONGSON3
1366	select ARCH_HAS_PHYS_TO_DMA
1367	select CPU_SUPPORTS_64BIT_KERNEL
1368	select CPU_SUPPORTS_HIGHMEM
1369	select CPU_SUPPORTS_HUGEPAGES
1370	select WEAK_ORDERING
1371	select WEAK_REORDERING_BEYOND_LLSC
1372	select MIPS_PGD_C0_CONTEXT
1373	select MIPS_L1_CACHE_SHIFT_6
1374	select GPIOLIB
1375	select SWIOTLB
1376	help
1377		The Loongson 3 processor implements the MIPS64R2 instruction
1378		set with many extensions.
1379
1380config LOONGSON3_ENHANCEMENT
1381	bool "New Loongson 3 CPU Enhancements"
1382	default n
1383	select CPU_MIPSR2
1384	select CPU_HAS_PREFETCH
1385	depends on CPU_LOONGSON3
1386	help
1387	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1388	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1389	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1390	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1391	  Fast TLB refill support, etc.
1392
1393	  This option enable those enhancements which are not probed at run
1394	  time. If you want a generic kernel to run on all Loongson 3 machines,
1395	  please say 'N' here. If you want a high-performance kernel to run on
1396	  new Loongson 3 machines only, please say 'Y' here.
1397
1398config CPU_LOONGSON2E
1399	bool "Loongson 2E"
1400	depends on SYS_HAS_CPU_LOONGSON2E
1401	select CPU_LOONGSON2
1402	help
1403	  The Loongson 2E processor implements the MIPS III instruction set
1404	  with many extensions.
1405
1406	  It has an internal FPGA northbridge, which is compatible to
1407	  bonito64.
1408
1409config CPU_LOONGSON2F
1410	bool "Loongson 2F"
1411	depends on SYS_HAS_CPU_LOONGSON2F
1412	select CPU_LOONGSON2
1413	select GPIOLIB
1414	help
1415	  The Loongson 2F processor implements the MIPS III instruction set
1416	  with many extensions.
1417
1418	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1419	  have a similar programming interface with FPGA northbridge used in
1420	  Loongson2E.
1421
1422config CPU_LOONGSON1B
1423	bool "Loongson 1B"
1424	depends on SYS_HAS_CPU_LOONGSON1B
1425	select CPU_LOONGSON1
1426	select LEDS_GPIO_REGISTER
1427	help
1428	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1429	  Release 1 instruction set and part of the MIPS32 Release 2
1430	  instruction set.
1431
1432config CPU_LOONGSON1C
1433	bool "Loongson 1C"
1434	depends on SYS_HAS_CPU_LOONGSON1C
1435	select CPU_LOONGSON1
1436	select LEDS_GPIO_REGISTER
1437	help
1438	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1439	  Release 1 instruction set and part of the MIPS32 Release 2
1440	  instruction set.
1441
1442config CPU_MIPS32_R1
1443	bool "MIPS32 Release 1"
1444	depends on SYS_HAS_CPU_MIPS32_R1
1445	select CPU_HAS_PREFETCH
1446	select CPU_SUPPORTS_32BIT_KERNEL
1447	select CPU_SUPPORTS_HIGHMEM
1448	help
1449	  Choose this option to build a kernel for release 1 or later of the
1450	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1451	  MIPS processor are based on a MIPS32 processor.  If you know the
1452	  specific type of processor in your system, choose those that one
1453	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1454	  Release 2 of the MIPS32 architecture is available since several
1455	  years so chances are you even have a MIPS32 Release 2 processor
1456	  in which case you should choose CPU_MIPS32_R2 instead for better
1457	  performance.
1458
1459config CPU_MIPS32_R2
1460	bool "MIPS32 Release 2"
1461	depends on SYS_HAS_CPU_MIPS32_R2
1462	select CPU_HAS_PREFETCH
1463	select CPU_SUPPORTS_32BIT_KERNEL
1464	select CPU_SUPPORTS_HIGHMEM
1465	select CPU_SUPPORTS_MSA
1466	select HAVE_KVM
1467	help
1468	  Choose this option to build a kernel for release 2 or later of the
1469	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1470	  MIPS processor are based on a MIPS32 processor.  If you know the
1471	  specific type of processor in your system, choose those that one
1472	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1473
1474config CPU_MIPS32_R6
1475	bool "MIPS32 Release 6"
1476	depends on SYS_HAS_CPU_MIPS32_R6
1477	select CPU_HAS_PREFETCH
1478	select CPU_SUPPORTS_32BIT_KERNEL
1479	select CPU_SUPPORTS_HIGHMEM
1480	select CPU_SUPPORTS_MSA
1481	select GENERIC_CSUM
1482	select HAVE_KVM
1483	select MIPS_O32_FP64_SUPPORT
1484	help
1485	  Choose this option to build a kernel for release 6 or later of the
1486	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1487	  family, are based on a MIPS32r6 processor. If you own an older
1488	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1489
1490config CPU_MIPS64_R1
1491	bool "MIPS64 Release 1"
1492	depends on SYS_HAS_CPU_MIPS64_R1
1493	select CPU_HAS_PREFETCH
1494	select CPU_SUPPORTS_32BIT_KERNEL
1495	select CPU_SUPPORTS_64BIT_KERNEL
1496	select CPU_SUPPORTS_HIGHMEM
1497	select CPU_SUPPORTS_HUGEPAGES
1498	help
1499	  Choose this option to build a kernel for release 1 or later of the
1500	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1501	  MIPS processor are based on a MIPS64 processor.  If you know the
1502	  specific type of processor in your system, choose those that one
1503	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1504	  Release 2 of the MIPS64 architecture is available since several
1505	  years so chances are you even have a MIPS64 Release 2 processor
1506	  in which case you should choose CPU_MIPS64_R2 instead for better
1507	  performance.
1508
1509config CPU_MIPS64_R2
1510	bool "MIPS64 Release 2"
1511	depends on SYS_HAS_CPU_MIPS64_R2
1512	select CPU_HAS_PREFETCH
1513	select CPU_SUPPORTS_32BIT_KERNEL
1514	select CPU_SUPPORTS_64BIT_KERNEL
1515	select CPU_SUPPORTS_HIGHMEM
1516	select CPU_SUPPORTS_HUGEPAGES
1517	select CPU_SUPPORTS_MSA
1518	select HAVE_KVM
1519	help
1520	  Choose this option to build a kernel for release 2 or later of the
1521	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1522	  MIPS processor are based on a MIPS64 processor.  If you know the
1523	  specific type of processor in your system, choose those that one
1524	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1525
1526config CPU_MIPS64_R6
1527	bool "MIPS64 Release 6"
1528	depends on SYS_HAS_CPU_MIPS64_R6
1529	select CPU_HAS_PREFETCH
1530	select CPU_SUPPORTS_32BIT_KERNEL
1531	select CPU_SUPPORTS_64BIT_KERNEL
1532	select CPU_SUPPORTS_HIGHMEM
1533	select CPU_SUPPORTS_MSA
1534	select GENERIC_CSUM
1535	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1536	select HAVE_KVM
1537	help
1538	  Choose this option to build a kernel for release 6 or later of the
1539	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1540	  family, are based on a MIPS64r6 processor. If you own an older
1541	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1542
1543config CPU_R3000
1544	bool "R3000"
1545	depends on SYS_HAS_CPU_R3000
1546	select CPU_HAS_WB
1547	select CPU_SUPPORTS_32BIT_KERNEL
1548	select CPU_SUPPORTS_HIGHMEM
1549	help
1550	  Please make sure to pick the right CPU type. Linux/MIPS is not
1551	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1552	  *not* work on R4000 machines and vice versa.  However, since most
1553	  of the supported machines have an R4000 (or similar) CPU, R4x00
1554	  might be a safe bet.  If the resulting kernel does not work,
1555	  try to recompile with R3000.
1556
1557config CPU_TX39XX
1558	bool "R39XX"
1559	depends on SYS_HAS_CPU_TX39XX
1560	select CPU_SUPPORTS_32BIT_KERNEL
1561
1562config CPU_VR41XX
1563	bool "R41xx"
1564	depends on SYS_HAS_CPU_VR41XX
1565	select CPU_SUPPORTS_32BIT_KERNEL
1566	select CPU_SUPPORTS_64BIT_KERNEL
1567	help
1568	  The options selects support for the NEC VR4100 series of processors.
1569	  Only choose this option if you have one of these processors as a
1570	  kernel built with this option will not run on any other type of
1571	  processor or vice versa.
1572
1573config CPU_R4300
1574	bool "R4300"
1575	depends on SYS_HAS_CPU_R4300
1576	select CPU_SUPPORTS_32BIT_KERNEL
1577	select CPU_SUPPORTS_64BIT_KERNEL
1578	help
1579	  MIPS Technologies R4300-series processors.
1580
1581config CPU_R4X00
1582	bool "R4x00"
1583	depends on SYS_HAS_CPU_R4X00
1584	select CPU_SUPPORTS_32BIT_KERNEL
1585	select CPU_SUPPORTS_64BIT_KERNEL
1586	select CPU_SUPPORTS_HUGEPAGES
1587	help
1588	  MIPS Technologies R4000-series processors other than 4300, including
1589	  the R4000, R4400, R4600, and 4700.
1590
1591config CPU_TX49XX
1592	bool "R49XX"
1593	depends on SYS_HAS_CPU_TX49XX
1594	select CPU_HAS_PREFETCH
1595	select CPU_SUPPORTS_32BIT_KERNEL
1596	select CPU_SUPPORTS_64BIT_KERNEL
1597	select CPU_SUPPORTS_HUGEPAGES
1598
1599config CPU_R5000
1600	bool "R5000"
1601	depends on SYS_HAS_CPU_R5000
1602	select CPU_SUPPORTS_32BIT_KERNEL
1603	select CPU_SUPPORTS_64BIT_KERNEL
1604	select CPU_SUPPORTS_HUGEPAGES
1605	help
1606	  MIPS Technologies R5000-series processors other than the Nevada.
1607
1608config CPU_R5432
1609	bool "R5432"
1610	depends on SYS_HAS_CPU_R5432
1611	select CPU_SUPPORTS_32BIT_KERNEL
1612	select CPU_SUPPORTS_64BIT_KERNEL
1613	select CPU_SUPPORTS_HUGEPAGES
1614
1615config CPU_R5500
1616	bool "R5500"
1617	depends on SYS_HAS_CPU_R5500
1618	select CPU_SUPPORTS_32BIT_KERNEL
1619	select CPU_SUPPORTS_64BIT_KERNEL
1620	select CPU_SUPPORTS_HUGEPAGES
1621	help
1622	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1623	  instruction set.
1624
1625config CPU_NEVADA
1626	bool "RM52xx"
1627	depends on SYS_HAS_CPU_NEVADA
1628	select CPU_SUPPORTS_32BIT_KERNEL
1629	select CPU_SUPPORTS_64BIT_KERNEL
1630	select CPU_SUPPORTS_HUGEPAGES
1631	help
1632	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1633
1634config CPU_R8000
1635	bool "R8000"
1636	depends on SYS_HAS_CPU_R8000
1637	select CPU_HAS_PREFETCH
1638	select CPU_SUPPORTS_64BIT_KERNEL
1639	help
1640	  MIPS Technologies R8000 processors.  Note these processors are
1641	  uncommon and the support for them is incomplete.
1642
1643config CPU_R10000
1644	bool "R10000"
1645	depends on SYS_HAS_CPU_R10000
1646	select CPU_HAS_PREFETCH
1647	select CPU_SUPPORTS_32BIT_KERNEL
1648	select CPU_SUPPORTS_64BIT_KERNEL
1649	select CPU_SUPPORTS_HIGHMEM
1650	select CPU_SUPPORTS_HUGEPAGES
1651	help
1652	  MIPS Technologies R10000-series processors.
1653
1654config CPU_RM7000
1655	bool "RM7000"
1656	depends on SYS_HAS_CPU_RM7000
1657	select CPU_HAS_PREFETCH
1658	select CPU_SUPPORTS_32BIT_KERNEL
1659	select CPU_SUPPORTS_64BIT_KERNEL
1660	select CPU_SUPPORTS_HIGHMEM
1661	select CPU_SUPPORTS_HUGEPAGES
1662
1663config CPU_SB1
1664	bool "SB1"
1665	depends on SYS_HAS_CPU_SB1
1666	select CPU_SUPPORTS_32BIT_KERNEL
1667	select CPU_SUPPORTS_64BIT_KERNEL
1668	select CPU_SUPPORTS_HIGHMEM
1669	select CPU_SUPPORTS_HUGEPAGES
1670	select WEAK_ORDERING
1671
1672config CPU_CAVIUM_OCTEON
1673	bool "Cavium Octeon processor"
1674	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1675	select CPU_HAS_PREFETCH
1676	select CPU_SUPPORTS_64BIT_KERNEL
1677	select WEAK_ORDERING
1678	select CPU_SUPPORTS_HIGHMEM
1679	select CPU_SUPPORTS_HUGEPAGES
1680	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1681	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1682	select MIPS_L1_CACHE_SHIFT_7
1683	select HAVE_KVM
1684	help
1685	  The Cavium Octeon processor is a highly integrated chip containing
1686	  many ethernet hardware widgets for networking tasks. The processor
1687	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1688	  Full details can be found at http://www.caviumnetworks.com.
1689
1690config CPU_BMIPS
1691	bool "Broadcom BMIPS"
1692	depends on SYS_HAS_CPU_BMIPS
1693	select CPU_MIPS32
1694	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1695	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1696	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1697	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1698	select CPU_SUPPORTS_32BIT_KERNEL
1699	select DMA_NONCOHERENT
1700	select IRQ_MIPS_CPU
1701	select SWAP_IO_SPACE
1702	select WEAK_ORDERING
1703	select CPU_SUPPORTS_HIGHMEM
1704	select CPU_HAS_PREFETCH
1705	select CPU_SUPPORTS_CPUFREQ
1706	select MIPS_EXTERNAL_TIMER
1707	help
1708	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1709
1710config CPU_XLR
1711	bool "Netlogic XLR SoC"
1712	depends on SYS_HAS_CPU_XLR
1713	select CPU_SUPPORTS_32BIT_KERNEL
1714	select CPU_SUPPORTS_64BIT_KERNEL
1715	select CPU_SUPPORTS_HIGHMEM
1716	select CPU_SUPPORTS_HUGEPAGES
1717	select WEAK_ORDERING
1718	select WEAK_REORDERING_BEYOND_LLSC
1719	help
1720	  Netlogic Microsystems XLR/XLS processors.
1721
1722config CPU_XLP
1723	bool "Netlogic XLP SoC"
1724	depends on SYS_HAS_CPU_XLP
1725	select CPU_SUPPORTS_32BIT_KERNEL
1726	select CPU_SUPPORTS_64BIT_KERNEL
1727	select CPU_SUPPORTS_HIGHMEM
1728	select WEAK_ORDERING
1729	select WEAK_REORDERING_BEYOND_LLSC
1730	select CPU_HAS_PREFETCH
1731	select CPU_MIPSR2
1732	select CPU_SUPPORTS_HUGEPAGES
1733	select MIPS_ASID_BITS_VARIABLE
1734	help
1735	  Netlogic Microsystems XLP processors.
1736endchoice
1737
1738config CPU_MIPS32_3_5_FEATURES
1739	bool "MIPS32 Release 3.5 Features"
1740	depends on SYS_HAS_CPU_MIPS32_R3_5
1741	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1742	help
1743	  Choose this option to build a kernel for release 2 or later of the
1744	  MIPS32 architecture including features from the 3.5 release such as
1745	  support for Enhanced Virtual Addressing (EVA).
1746
1747config CPU_MIPS32_3_5_EVA
1748	bool "Enhanced Virtual Addressing (EVA)"
1749	depends on CPU_MIPS32_3_5_FEATURES
1750	select EVA
1751	default y
1752	help
1753	  Choose this option if you want to enable the Enhanced Virtual
1754	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1755	  One of its primary benefits is an increase in the maximum size
1756	  of lowmem (up to 3GB). If unsure, say 'N' here.
1757
1758config CPU_MIPS32_R5_FEATURES
1759	bool "MIPS32 Release 5 Features"
1760	depends on SYS_HAS_CPU_MIPS32_R5
1761	depends on CPU_MIPS32_R2
1762	help
1763	  Choose this option to build a kernel for release 2 or later of the
1764	  MIPS32 architecture including features from release 5 such as
1765	  support for Extended Physical Addressing (XPA).
1766
1767config CPU_MIPS32_R5_XPA
1768	bool "Extended Physical Addressing (XPA)"
1769	depends on CPU_MIPS32_R5_FEATURES
1770	depends on !EVA
1771	depends on !PAGE_SIZE_4KB
1772	depends on SYS_SUPPORTS_HIGHMEM
1773	select XPA
1774	select HIGHMEM
1775	select PHYS_ADDR_T_64BIT
1776	default n
1777	help
1778	  Choose this option if you want to enable the Extended Physical
1779	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1780	  benefit is to increase physical addressing equal to or greater
1781	  than 40 bits. Note that this has the side effect of turning on
1782	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1783	  If unsure, say 'N' here.
1784
1785if CPU_LOONGSON2F
1786config CPU_NOP_WORKAROUNDS
1787	bool
1788
1789config CPU_JUMP_WORKAROUNDS
1790	bool
1791
1792config CPU_LOONGSON2F_WORKAROUNDS
1793	bool "Loongson 2F Workarounds"
1794	default y
1795	select CPU_NOP_WORKAROUNDS
1796	select CPU_JUMP_WORKAROUNDS
1797	help
1798	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1799	  require workarounds.  Without workarounds the system may hang
1800	  unexpectedly.  For more information please refer to the gas
1801	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1802
1803	  Loongson 2F03 and later have fixed these issues and no workarounds
1804	  are needed.  The workarounds have no significant side effect on them
1805	  but may decrease the performance of the system so this option should
1806	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1807	  systems.
1808
1809	  If unsure, please say Y.
1810endif # CPU_LOONGSON2F
1811
1812config SYS_SUPPORTS_ZBOOT
1813	bool
1814	select HAVE_KERNEL_GZIP
1815	select HAVE_KERNEL_BZIP2
1816	select HAVE_KERNEL_LZ4
1817	select HAVE_KERNEL_LZMA
1818	select HAVE_KERNEL_LZO
1819	select HAVE_KERNEL_XZ
1820
1821config SYS_SUPPORTS_ZBOOT_UART16550
1822	bool
1823	select SYS_SUPPORTS_ZBOOT
1824
1825config SYS_SUPPORTS_ZBOOT_UART_PROM
1826	bool
1827	select SYS_SUPPORTS_ZBOOT
1828
1829config CPU_LOONGSON2
1830	bool
1831	select CPU_SUPPORTS_32BIT_KERNEL
1832	select CPU_SUPPORTS_64BIT_KERNEL
1833	select CPU_SUPPORTS_HIGHMEM
1834	select CPU_SUPPORTS_HUGEPAGES
1835	select ARCH_HAS_PHYS_TO_DMA
1836
1837config CPU_LOONGSON1
1838	bool
1839	select CPU_MIPS32
1840	select CPU_MIPSR1
1841	select CPU_HAS_PREFETCH
1842	select CPU_SUPPORTS_32BIT_KERNEL
1843	select CPU_SUPPORTS_HIGHMEM
1844	select CPU_SUPPORTS_CPUFREQ
1845
1846config CPU_BMIPS32_3300
1847	select SMP_UP if SMP
1848	bool
1849
1850config CPU_BMIPS4350
1851	bool
1852	select SYS_SUPPORTS_SMP
1853	select SYS_SUPPORTS_HOTPLUG_CPU
1854
1855config CPU_BMIPS4380
1856	bool
1857	select MIPS_L1_CACHE_SHIFT_6
1858	select SYS_SUPPORTS_SMP
1859	select SYS_SUPPORTS_HOTPLUG_CPU
1860	select CPU_HAS_RIXI
1861
1862config CPU_BMIPS5000
1863	bool
1864	select MIPS_CPU_SCACHE
1865	select MIPS_L1_CACHE_SHIFT_7
1866	select SYS_SUPPORTS_SMP
1867	select SYS_SUPPORTS_HOTPLUG_CPU
1868	select CPU_HAS_RIXI
1869
1870config SYS_HAS_CPU_LOONGSON3
1871	bool
1872	select CPU_SUPPORTS_CPUFREQ
1873	select CPU_HAS_RIXI
1874
1875config SYS_HAS_CPU_LOONGSON2E
1876	bool
1877
1878config SYS_HAS_CPU_LOONGSON2F
1879	bool
1880	select CPU_SUPPORTS_CPUFREQ
1881	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1882	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1883
1884config SYS_HAS_CPU_LOONGSON1B
1885	bool
1886
1887config SYS_HAS_CPU_LOONGSON1C
1888	bool
1889
1890config SYS_HAS_CPU_MIPS32_R1
1891	bool
1892
1893config SYS_HAS_CPU_MIPS32_R2
1894	bool
1895
1896config SYS_HAS_CPU_MIPS32_R3_5
1897	bool
1898
1899config SYS_HAS_CPU_MIPS32_R5
1900	bool
1901
1902config SYS_HAS_CPU_MIPS32_R6
1903	bool
1904
1905config SYS_HAS_CPU_MIPS64_R1
1906	bool
1907
1908config SYS_HAS_CPU_MIPS64_R2
1909	bool
1910
1911config SYS_HAS_CPU_MIPS64_R6
1912	bool
1913
1914config SYS_HAS_CPU_R3000
1915	bool
1916
1917config SYS_HAS_CPU_TX39XX
1918	bool
1919
1920config SYS_HAS_CPU_VR41XX
1921	bool
1922
1923config SYS_HAS_CPU_R4300
1924	bool
1925
1926config SYS_HAS_CPU_R4X00
1927	bool
1928
1929config SYS_HAS_CPU_TX49XX
1930	bool
1931
1932config SYS_HAS_CPU_R5000
1933	bool
1934
1935config SYS_HAS_CPU_R5432
1936	bool
1937
1938config SYS_HAS_CPU_R5500
1939	bool
1940
1941config SYS_HAS_CPU_NEVADA
1942	bool
1943
1944config SYS_HAS_CPU_R8000
1945	bool
1946
1947config SYS_HAS_CPU_R10000
1948	bool
1949
1950config SYS_HAS_CPU_RM7000
1951	bool
1952
1953config SYS_HAS_CPU_SB1
1954	bool
1955
1956config SYS_HAS_CPU_CAVIUM_OCTEON
1957	bool
1958
1959config SYS_HAS_CPU_BMIPS
1960	bool
1961
1962config SYS_HAS_CPU_BMIPS32_3300
1963	bool
1964	select SYS_HAS_CPU_BMIPS
1965
1966config SYS_HAS_CPU_BMIPS4350
1967	bool
1968	select SYS_HAS_CPU_BMIPS
1969
1970config SYS_HAS_CPU_BMIPS4380
1971	bool
1972	select SYS_HAS_CPU_BMIPS
1973
1974config SYS_HAS_CPU_BMIPS5000
1975	bool
1976	select SYS_HAS_CPU_BMIPS
1977
1978config SYS_HAS_CPU_XLR
1979	bool
1980
1981config SYS_HAS_CPU_XLP
1982	bool
1983
1984#
1985# CPU may reorder R->R, R->W, W->R, W->W
1986# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1987#
1988config WEAK_ORDERING
1989	bool
1990
1991#
1992# CPU may reorder reads and writes beyond LL/SC
1993# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1994#
1995config WEAK_REORDERING_BEYOND_LLSC
1996	bool
1997endmenu
1998
1999#
2000# These two indicate any level of the MIPS32 and MIPS64 architecture
2001#
2002config CPU_MIPS32
2003	bool
2004	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2005
2006config CPU_MIPS64
2007	bool
2008	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2009
2010#
2011# These two indicate the revision of the architecture, either Release 1 or Release 2
2012#
2013config CPU_MIPSR1
2014	bool
2015	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2016
2017config CPU_MIPSR2
2018	bool
2019	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2020	select CPU_HAS_RIXI
2021	select MIPS_SPRAM
2022
2023config CPU_MIPSR6
2024	bool
2025	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2026	select CPU_HAS_RIXI
2027	select HAVE_ARCH_BITREVERSE
2028	select MIPS_ASID_BITS_VARIABLE
2029	select MIPS_CRC_SUPPORT
2030	select MIPS_SPRAM
2031
2032config EVA
2033	bool
2034
2035config XPA
2036	bool
2037
2038config SYS_SUPPORTS_32BIT_KERNEL
2039	bool
2040config SYS_SUPPORTS_64BIT_KERNEL
2041	bool
2042config CPU_SUPPORTS_32BIT_KERNEL
2043	bool
2044config CPU_SUPPORTS_64BIT_KERNEL
2045	bool
2046config CPU_SUPPORTS_CPUFREQ
2047	bool
2048config CPU_SUPPORTS_ADDRWINCFG
2049	bool
2050config CPU_SUPPORTS_HUGEPAGES
2051	bool
2052config CPU_SUPPORTS_UNCACHED_ACCELERATED
2053	bool
2054config MIPS_PGD_C0_CONTEXT
2055	bool
2056	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2057
2058#
2059# Set to y for ptrace access to watch registers.
2060#
2061config HARDWARE_WATCHPOINTS
2062       bool
2063       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2064
2065menu "Kernel type"
2066
2067choice
2068	prompt "Kernel code model"
2069	help
2070	  You should only select this option if you have a workload that
2071	  actually benefits from 64-bit processing or if your machine has
2072	  large memory.  You will only be presented a single option in this
2073	  menu if your system does not support both 32-bit and 64-bit kernels.
2074
2075config 32BIT
2076	bool "32-bit kernel"
2077	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2078	select TRAD_SIGNALS
2079	help
2080	  Select this option if you want to build a 32-bit kernel.
2081
2082config 64BIT
2083	bool "64-bit kernel"
2084	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2085	help
2086	  Select this option if you want to build a 64-bit kernel.
2087
2088endchoice
2089
2090config KVM_GUEST
2091	bool "KVM Guest Kernel"
2092	depends on BROKEN_ON_SMP
2093	help
2094	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2095	  mode.
2096
2097config KVM_GUEST_TIMER_FREQ
2098	int "Count/Compare Timer Frequency (MHz)"
2099	depends on KVM_GUEST
2100	default 100
2101	help
2102	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2103	  emulation when determining guest CPU Frequency. Instead, the guest's
2104	  timer frequency is specified directly.
2105
2106config MIPS_VA_BITS_48
2107	bool "48 bits virtual memory"
2108	depends on 64BIT
2109	help
2110	  Support a maximum at least 48 bits of application virtual
2111	  memory.  Default is 40 bits or less, depending on the CPU.
2112	  For page sizes 16k and above, this option results in a small
2113	  memory overhead for page tables.  For 4k page size, a fourth
2114	  level of page tables is added which imposes both a memory
2115	  overhead as well as slower TLB fault handling.
2116
2117	  If unsure, say N.
2118
2119choice
2120	prompt "Kernel page size"
2121	default PAGE_SIZE_4KB
2122
2123config PAGE_SIZE_4KB
2124	bool "4kB"
2125	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2126	help
2127	 This option select the standard 4kB Linux page size.  On some
2128	 R3000-family processors this is the only available page size.  Using
2129	 4kB page size will minimize memory consumption and is therefore
2130	 recommended for low memory systems.
2131
2132config PAGE_SIZE_8KB
2133	bool "8kB"
2134	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2135	depends on !MIPS_VA_BITS_48
2136	help
2137	  Using 8kB page size will result in higher performance kernel at
2138	  the price of higher memory consumption.  This option is available
2139	  only on R8000 and cnMIPS processors.  Note that you will need a
2140	  suitable Linux distribution to support this.
2141
2142config PAGE_SIZE_16KB
2143	bool "16kB"
2144	depends on !CPU_R3000 && !CPU_TX39XX
2145	help
2146	  Using 16kB page size will result in higher performance kernel at
2147	  the price of higher memory consumption.  This option is available on
2148	  all non-R3000 family processors.  Note that you will need a suitable
2149	  Linux distribution to support this.
2150
2151config PAGE_SIZE_32KB
2152	bool "32kB"
2153	depends on CPU_CAVIUM_OCTEON
2154	depends on !MIPS_VA_BITS_48
2155	help
2156	  Using 32kB page size will result in higher performance kernel at
2157	  the price of higher memory consumption.  This option is available
2158	  only on cnMIPS cores.  Note that you will need a suitable Linux
2159	  distribution to support this.
2160
2161config PAGE_SIZE_64KB
2162	bool "64kB"
2163	depends on !CPU_R3000 && !CPU_TX39XX
2164	help
2165	  Using 64kB page size will result in higher performance kernel at
2166	  the price of higher memory consumption.  This option is available on
2167	  all non-R3000 family processor.  Not that at the time of this
2168	  writing this option is still high experimental.
2169
2170endchoice
2171
2172config FORCE_MAX_ZONEORDER
2173	int "Maximum zone order"
2174	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2175	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2176	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2177	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2178	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2179	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2180	range 11 64
2181	default "11"
2182	help
2183	  The kernel memory allocator divides physically contiguous memory
2184	  blocks into "zones", where each zone is a power of two number of
2185	  pages.  This option selects the largest power of two that the kernel
2186	  keeps in the memory allocator.  If you need to allocate very large
2187	  blocks of physically contiguous memory, then you may need to
2188	  increase this value.
2189
2190	  This config option is actually maximum order plus one. For example,
2191	  a value of 11 means that the largest free memory block is 2^10 pages.
2192
2193	  The page size is not necessarily 4KB.  Keep this in mind
2194	  when choosing a value for this option.
2195
2196config BOARD_SCACHE
2197	bool
2198
2199config IP22_CPU_SCACHE
2200	bool
2201	select BOARD_SCACHE
2202
2203#
2204# Support for a MIPS32 / MIPS64 style S-caches
2205#
2206config MIPS_CPU_SCACHE
2207	bool
2208	select BOARD_SCACHE
2209
2210config R5000_CPU_SCACHE
2211	bool
2212	select BOARD_SCACHE
2213
2214config RM7000_CPU_SCACHE
2215	bool
2216	select BOARD_SCACHE
2217
2218config SIBYTE_DMA_PAGEOPS
2219	bool "Use DMA to clear/copy pages"
2220	depends on CPU_SB1
2221	help
2222	  Instead of using the CPU to zero and copy pages, use a Data Mover
2223	  channel.  These DMA channels are otherwise unused by the standard
2224	  SiByte Linux port.  Seems to give a small performance benefit.
2225
2226config CPU_HAS_PREFETCH
2227	bool
2228
2229config CPU_GENERIC_DUMP_TLB
2230	bool
2231	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2232
2233config CPU_R4K_FPU
2234	bool
2235	default y if !(CPU_R3000 || CPU_TX39XX)
2236
2237config CPU_R4K_CACHE_TLB
2238	bool
2239	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2240
2241config MIPS_MT_SMP
2242	bool "MIPS MT SMP support (1 TC on each available VPE)"
2243	default y
2244	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2245	select CPU_MIPSR2_IRQ_VI
2246	select CPU_MIPSR2_IRQ_EI
2247	select SYNC_R4K
2248	select MIPS_MT
2249	select SMP
2250	select SMP_UP
2251	select SYS_SUPPORTS_SMP
2252	select SYS_SUPPORTS_SCHED_SMT
2253	select MIPS_PERF_SHARED_TC_COUNTERS
2254	help
2255	  This is a kernel model which is known as SMVP. This is supported
2256	  on cores with the MT ASE and uses the available VPEs to implement
2257	  virtual processors which supports SMP. This is equivalent to the
2258	  Intel Hyperthreading feature. For further information go to
2259	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2260
2261config MIPS_MT
2262	bool
2263
2264config SCHED_SMT
2265	bool "SMT (multithreading) scheduler support"
2266	depends on SYS_SUPPORTS_SCHED_SMT
2267	default n
2268	help
2269	  SMT scheduler support improves the CPU scheduler's decision making
2270	  when dealing with MIPS MT enabled cores at a cost of slightly
2271	  increased overhead in some places. If unsure say N here.
2272
2273config SYS_SUPPORTS_SCHED_SMT
2274	bool
2275
2276config SYS_SUPPORTS_MULTITHREADING
2277	bool
2278
2279config MIPS_MT_FPAFF
2280	bool "Dynamic FPU affinity for FP-intensive threads"
2281	default y
2282	depends on MIPS_MT_SMP
2283
2284config MIPSR2_TO_R6_EMULATOR
2285	bool "MIPS R2-to-R6 emulator"
2286	depends on CPU_MIPSR6
2287	default y
2288	help
2289	  Choose this option if you want to run non-R6 MIPS userland code.
2290	  Even if you say 'Y' here, the emulator will still be disabled by
2291	  default. You can enable it using the 'mipsr2emu' kernel option.
2292	  The only reason this is a build-time option is to save ~14K from the
2293	  final kernel image.
2294
2295config SYS_SUPPORTS_VPE_LOADER
2296	bool
2297	depends on SYS_SUPPORTS_MULTITHREADING
2298	help
2299	  Indicates that the platform supports the VPE loader, and provides
2300	  physical_memsize.
2301
2302config MIPS_VPE_LOADER
2303	bool "VPE loader support."
2304	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2305	select CPU_MIPSR2_IRQ_VI
2306	select CPU_MIPSR2_IRQ_EI
2307	select MIPS_MT
2308	help
2309	  Includes a loader for loading an elf relocatable object
2310	  onto another VPE and running it.
2311
2312config MIPS_VPE_LOADER_CMP
2313	bool
2314	default "y"
2315	depends on MIPS_VPE_LOADER && MIPS_CMP
2316
2317config MIPS_VPE_LOADER_MT
2318	bool
2319	default "y"
2320	depends on MIPS_VPE_LOADER && !MIPS_CMP
2321
2322config MIPS_VPE_LOADER_TOM
2323	bool "Load VPE program into memory hidden from linux"
2324	depends on MIPS_VPE_LOADER
2325	default y
2326	help
2327	  The loader can use memory that is present but has been hidden from
2328	  Linux using the kernel command line option "mem=xxMB". It's up to
2329	  you to ensure the amount you put in the option and the space your
2330	  program requires is less or equal to the amount physically present.
2331
2332config MIPS_VPE_APSP_API
2333	bool "Enable support for AP/SP API (RTLX)"
2334	depends on MIPS_VPE_LOADER
2335
2336config MIPS_VPE_APSP_API_CMP
2337	bool
2338	default "y"
2339	depends on MIPS_VPE_APSP_API && MIPS_CMP
2340
2341config MIPS_VPE_APSP_API_MT
2342	bool
2343	default "y"
2344	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2345
2346config MIPS_CMP
2347	bool "MIPS CMP framework support (DEPRECATED)"
2348	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2349	select SMP
2350	select SYNC_R4K
2351	select SYS_SUPPORTS_SMP
2352	select WEAK_ORDERING
2353	default n
2354	help
2355	  Select this if you are using a bootloader which implements the "CMP
2356	  framework" protocol (ie. YAMON) and want your kernel to make use of
2357	  its ability to start secondary CPUs.
2358
2359	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2360	  instead of this.
2361
2362config MIPS_CPS
2363	bool "MIPS Coherent Processing System support"
2364	depends on SYS_SUPPORTS_MIPS_CPS
2365	select MIPS_CM
2366	select MIPS_CPS_PM if HOTPLUG_CPU
2367	select SMP
2368	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2369	select SYS_SUPPORTS_HOTPLUG_CPU
2370	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2371	select SYS_SUPPORTS_SMP
2372	select WEAK_ORDERING
2373	help
2374	  Select this if you wish to run an SMP kernel across multiple cores
2375	  within a MIPS Coherent Processing System. When this option is
2376	  enabled the kernel will probe for other cores and boot them with
2377	  no external assistance. It is safe to enable this when hardware
2378	  support is unavailable.
2379
2380config MIPS_CPS_PM
2381	depends on MIPS_CPS
2382	bool
2383
2384config MIPS_CM
2385	bool
2386	select MIPS_CPC
2387
2388config MIPS_CPC
2389	bool
2390
2391config SB1_PASS_2_WORKAROUNDS
2392	bool
2393	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2394	default y
2395
2396config SB1_PASS_2_1_WORKAROUNDS
2397	bool
2398	depends on CPU_SB1 && CPU_SB1_PASS_2
2399	default y
2400
2401
2402choice
2403	prompt "SmartMIPS or microMIPS ASE support"
2404
2405config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2406	bool "None"
2407	help
2408	  Select this if you want neither microMIPS nor SmartMIPS support
2409
2410config CPU_HAS_SMARTMIPS
2411	depends on SYS_SUPPORTS_SMARTMIPS
2412	bool "SmartMIPS"
2413	help
2414	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2415	  increased security at both hardware and software level for
2416	  smartcards.  Enabling this option will allow proper use of the
2417	  SmartMIPS instructions by Linux applications.  However a kernel with
2418	  this option will not work on a MIPS core without SmartMIPS core.  If
2419	  you don't know you probably don't have SmartMIPS and should say N
2420	  here.
2421
2422config CPU_MICROMIPS
2423	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2424	bool "microMIPS"
2425	help
2426	  When this option is enabled the kernel will be built using the
2427	  microMIPS ISA
2428
2429endchoice
2430
2431config CPU_HAS_MSA
2432	bool "Support for the MIPS SIMD Architecture"
2433	depends on CPU_SUPPORTS_MSA
2434	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2435	help
2436	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2437	  and a set of SIMD instructions to operate on them. When this option
2438	  is enabled the kernel will support allocating & switching MSA
2439	  vector register contexts. If you know that your kernel will only be
2440	  running on CPUs which do not support MSA or that your userland will
2441	  not be making use of it then you may wish to say N here to reduce
2442	  the size & complexity of your kernel.
2443
2444	  If unsure, say Y.
2445
2446config CPU_HAS_WB
2447	bool
2448
2449config XKS01
2450	bool
2451
2452config CPU_HAS_RIXI
2453	bool
2454
2455#
2456# Vectored interrupt mode is an R2 feature
2457#
2458config CPU_MIPSR2_IRQ_VI
2459	bool
2460
2461#
2462# Extended interrupt mode is an R2 feature
2463#
2464config CPU_MIPSR2_IRQ_EI
2465	bool
2466
2467config CPU_HAS_SYNC
2468	bool
2469	depends on !CPU_R3000
2470	default y
2471
2472#
2473# CPU non-features
2474#
2475config CPU_DADDI_WORKAROUNDS
2476	bool
2477
2478config CPU_R4000_WORKAROUNDS
2479	bool
2480	select CPU_R4400_WORKAROUNDS
2481
2482config CPU_R4400_WORKAROUNDS
2483	bool
2484
2485config MIPS_ASID_SHIFT
2486	int
2487	default 6 if CPU_R3000 || CPU_TX39XX
2488	default 4 if CPU_R8000
2489	default 0
2490
2491config MIPS_ASID_BITS
2492	int
2493	default 0 if MIPS_ASID_BITS_VARIABLE
2494	default 6 if CPU_R3000 || CPU_TX39XX
2495	default 8
2496
2497config MIPS_ASID_BITS_VARIABLE
2498	bool
2499
2500config MIPS_CRC_SUPPORT
2501	bool
2502
2503#
2504# - Highmem only makes sense for the 32-bit kernel.
2505# - The current highmem code will only work properly on physically indexed
2506#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2507#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2508#   moment we protect the user and offer the highmem option only on machines
2509#   where it's known to be safe.  This will not offer highmem on a few systems
2510#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2511#   indexed CPUs but we're playing safe.
2512# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2513#   know they might have memory configurations that could make use of highmem
2514#   support.
2515#
2516config HIGHMEM
2517	bool "High Memory Support"
2518	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2519
2520config CPU_SUPPORTS_HIGHMEM
2521	bool
2522
2523config SYS_SUPPORTS_HIGHMEM
2524	bool
2525
2526config SYS_SUPPORTS_SMARTMIPS
2527	bool
2528
2529config SYS_SUPPORTS_MICROMIPS
2530	bool
2531
2532config SYS_SUPPORTS_MIPS16
2533	bool
2534	help
2535	  This option must be set if a kernel might be executed on a MIPS16-
2536	  enabled CPU even if MIPS16 is not actually being used.  In other
2537	  words, it makes the kernel MIPS16-tolerant.
2538
2539config CPU_SUPPORTS_MSA
2540	bool
2541
2542config ARCH_FLATMEM_ENABLE
2543	def_bool y
2544	depends on !NUMA && !CPU_LOONGSON2
2545
2546config ARCH_DISCONTIGMEM_ENABLE
2547	bool
2548	default y if SGI_IP27
2549	help
2550	  Say Y to support efficient handling of discontiguous physical memory,
2551	  for architectures which are either NUMA (Non-Uniform Memory Access)
2552	  or have huge holes in the physical address space for other reasons.
2553	  See <file:Documentation/vm/numa.rst> for more.
2554
2555config ARCH_SPARSEMEM_ENABLE
2556	bool
2557	select SPARSEMEM_STATIC
2558
2559config NUMA
2560	bool "NUMA Support"
2561	depends on SYS_SUPPORTS_NUMA
2562	help
2563	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2564	  Access).  This option improves performance on systems with more
2565	  than two nodes; on two node systems it is generally better to
2566	  leave it disabled; on single node systems disable this option
2567	  disabled.
2568
2569config SYS_SUPPORTS_NUMA
2570	bool
2571
2572config RELOCATABLE
2573	bool "Relocatable kernel"
2574	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2575	help
2576	  This builds a kernel image that retains relocation information
2577	  so it can be loaded someplace besides the default 1MB.
2578	  The relocations make the kernel binary about 15% larger,
2579	  but are discarded at runtime
2580
2581config RELOCATION_TABLE_SIZE
2582	hex "Relocation table size"
2583	depends on RELOCATABLE
2584	range 0x0 0x01000000
2585	default "0x00100000"
2586	---help---
2587	  A table of relocation data will be appended to the kernel binary
2588	  and parsed at boot to fix up the relocated kernel.
2589
2590	  This option allows the amount of space reserved for the table to be
2591	  adjusted, although the default of 1Mb should be ok in most cases.
2592
2593	  The build will fail and a valid size suggested if this is too small.
2594
2595	  If unsure, leave at the default value.
2596
2597config RANDOMIZE_BASE
2598	bool "Randomize the address of the kernel image"
2599	depends on RELOCATABLE
2600	---help---
2601	   Randomizes the physical and virtual address at which the
2602	   kernel image is loaded, as a security feature that
2603	   deters exploit attempts relying on knowledge of the location
2604	   of kernel internals.
2605
2606	   Entropy is generated using any coprocessor 0 registers available.
2607
2608	   The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2609
2610	   If unsure, say N.
2611
2612config RANDOMIZE_BASE_MAX_OFFSET
2613	hex "Maximum kASLR offset" if EXPERT
2614	depends on RANDOMIZE_BASE
2615	range 0x0 0x40000000 if EVA || 64BIT
2616	range 0x0 0x08000000
2617	default "0x01000000"
2618	---help---
2619	  When kASLR is active, this provides the maximum offset that will
2620	  be applied to the kernel image. It should be set according to the
2621	  amount of physical RAM available in the target system minus
2622	  PHYSICAL_START and must be a power of 2.
2623
2624	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2625	  EVA or 64-bit. The default is 16Mb.
2626
2627config NODES_SHIFT
2628	int
2629	default "6"
2630	depends on NEED_MULTIPLE_NODES
2631
2632config HW_PERF_EVENTS
2633	bool "Enable hardware performance counter support for perf events"
2634	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2635	default y
2636	help
2637	  Enable hardware performance counter support for perf events. If
2638	  disabled, perf events will use software events only.
2639
2640config SMP
2641	bool "Multi-Processing support"
2642	depends on SYS_SUPPORTS_SMP
2643	help
2644	  This enables support for systems with more than one CPU. If you have
2645	  a system with only one CPU, say N. If you have a system with more
2646	  than one CPU, say Y.
2647
2648	  If you say N here, the kernel will run on uni- and multiprocessor
2649	  machines, but will use only one CPU of a multiprocessor machine. If
2650	  you say Y here, the kernel will run on many, but not all,
2651	  uniprocessor machines. On a uniprocessor machine, the kernel
2652	  will run faster if you say N here.
2653
2654	  People using multiprocessor machines who say Y here should also say
2655	  Y to "Enhanced Real Time Clock Support", below.
2656
2657	  See also the SMP-HOWTO available at
2658	  <http://www.tldp.org/docs.html#howto>.
2659
2660	  If you don't know what to do here, say N.
2661
2662config HOTPLUG_CPU
2663	bool "Support for hot-pluggable CPUs"
2664	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2665	help
2666	  Say Y here to allow turning CPUs off and on. CPUs can be
2667	  controlled through /sys/devices/system/cpu.
2668	  (Note: power management support will enable this option
2669	    automatically on SMP systems. )
2670	  Say N if you want to disable CPU hotplug.
2671
2672config SMP_UP
2673	bool
2674
2675config SYS_SUPPORTS_MIPS_CMP
2676	bool
2677
2678config SYS_SUPPORTS_MIPS_CPS
2679	bool
2680
2681config SYS_SUPPORTS_SMP
2682	bool
2683
2684config NR_CPUS_DEFAULT_4
2685	bool
2686
2687config NR_CPUS_DEFAULT_8
2688	bool
2689
2690config NR_CPUS_DEFAULT_16
2691	bool
2692
2693config NR_CPUS_DEFAULT_32
2694	bool
2695
2696config NR_CPUS_DEFAULT_64
2697	bool
2698
2699config NR_CPUS
2700	int "Maximum number of CPUs (2-256)"
2701	range 2 256
2702	depends on SMP
2703	default "4" if NR_CPUS_DEFAULT_4
2704	default "8" if NR_CPUS_DEFAULT_8
2705	default "16" if NR_CPUS_DEFAULT_16
2706	default "32" if NR_CPUS_DEFAULT_32
2707	default "64" if NR_CPUS_DEFAULT_64
2708	help
2709	  This allows you to specify the maximum number of CPUs which this
2710	  kernel will support.  The maximum supported value is 32 for 32-bit
2711	  kernel and 64 for 64-bit kernels; the minimum value which makes
2712	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2713	  and 2 for all others.
2714
2715	  This is purely to save memory - each supported CPU adds
2716	  approximately eight kilobytes to the kernel image.  For best
2717	  performance should round up your number of processors to the next
2718	  power of two.
2719
2720config MIPS_PERF_SHARED_TC_COUNTERS
2721	bool
2722
2723config MIPS_NR_CPU_NR_MAP_1024
2724	bool
2725
2726config MIPS_NR_CPU_NR_MAP
2727	int
2728	depends on SMP
2729	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2730	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2731
2732#
2733# Timer Interrupt Frequency Configuration
2734#
2735
2736choice
2737	prompt "Timer frequency"
2738	default HZ_250
2739	help
2740	 Allows the configuration of the timer frequency.
2741
2742	config HZ_24
2743		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2744
2745	config HZ_48
2746		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2747
2748	config HZ_100
2749		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2750
2751	config HZ_128
2752		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2753
2754	config HZ_250
2755		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2756
2757	config HZ_256
2758		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2759
2760	config HZ_1000
2761		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2762
2763	config HZ_1024
2764		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2765
2766endchoice
2767
2768config SYS_SUPPORTS_24HZ
2769	bool
2770
2771config SYS_SUPPORTS_48HZ
2772	bool
2773
2774config SYS_SUPPORTS_100HZ
2775	bool
2776
2777config SYS_SUPPORTS_128HZ
2778	bool
2779
2780config SYS_SUPPORTS_250HZ
2781	bool
2782
2783config SYS_SUPPORTS_256HZ
2784	bool
2785
2786config SYS_SUPPORTS_1000HZ
2787	bool
2788
2789config SYS_SUPPORTS_1024HZ
2790	bool
2791
2792config SYS_SUPPORTS_ARBIT_HZ
2793	bool
2794	default y if !SYS_SUPPORTS_24HZ && \
2795		     !SYS_SUPPORTS_48HZ && \
2796		     !SYS_SUPPORTS_100HZ && \
2797		     !SYS_SUPPORTS_128HZ && \
2798		     !SYS_SUPPORTS_250HZ && \
2799		     !SYS_SUPPORTS_256HZ && \
2800		     !SYS_SUPPORTS_1000HZ && \
2801		     !SYS_SUPPORTS_1024HZ
2802
2803config HZ
2804	int
2805	default 24 if HZ_24
2806	default 48 if HZ_48
2807	default 100 if HZ_100
2808	default 128 if HZ_128
2809	default 250 if HZ_250
2810	default 256 if HZ_256
2811	default 1000 if HZ_1000
2812	default 1024 if HZ_1024
2813
2814config SCHED_HRTICK
2815	def_bool HIGH_RES_TIMERS
2816
2817config KEXEC
2818	bool "Kexec system call"
2819	select KEXEC_CORE
2820	help
2821	  kexec is a system call that implements the ability to shutdown your
2822	  current kernel, and to start another kernel.  It is like a reboot
2823	  but it is independent of the system firmware.   And like a reboot
2824	  you can start any kernel with it, not just Linux.
2825
2826	  The name comes from the similarity to the exec system call.
2827
2828	  It is an ongoing process to be certain the hardware in a machine
2829	  is properly shutdown, so do not be surprised if this code does not
2830	  initially work for you.  As of this writing the exact hardware
2831	  interface is strongly in flux, so no good recommendation can be
2832	  made.
2833
2834config CRASH_DUMP
2835	bool "Kernel crash dumps"
2836	help
2837	  Generate crash dump after being started by kexec.
2838	  This should be normally only set in special crash dump kernels
2839	  which are loaded in the main kernel with kexec-tools into
2840	  a specially reserved region and then later executed after
2841	  a crash by kdump/kexec. The crash dump kernel must be compiled
2842	  to a memory address not used by the main kernel or firmware using
2843	  PHYSICAL_START.
2844
2845config PHYSICAL_START
2846	hex "Physical address where the kernel is loaded"
2847	default "0xffffffff84000000"
2848	depends on CRASH_DUMP
2849	help
2850	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2851	  If you plan to use kernel for capturing the crash dump change
2852	  this value to start of the reserved region (the "X" value as
2853	  specified in the "crashkernel=YM@XM" command line boot parameter
2854	  passed to the panic-ed kernel).
2855
2856config SECCOMP
2857	bool "Enable seccomp to safely compute untrusted bytecode"
2858	depends on PROC_FS
2859	default y
2860	help
2861	  This kernel feature is useful for number crunching applications
2862	  that may need to compute untrusted bytecode during their
2863	  execution. By using pipes or other transports made available to
2864	  the process as file descriptors supporting the read/write
2865	  syscalls, it's possible to isolate those applications in
2866	  their own address space using seccomp. Once seccomp is
2867	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2868	  and the task is only allowed to execute a few safe syscalls
2869	  defined by each seccomp mode.
2870
2871	  If unsure, say Y. Only embedded should say N here.
2872
2873config MIPS_O32_FP64_SUPPORT
2874	bool "Support for O32 binaries using 64-bit FP"
2875	depends on 32BIT || MIPS32_O32
2876	help
2877	  When this is enabled, the kernel will support use of 64-bit floating
2878	  point registers with binaries using the O32 ABI along with the
2879	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2880	  32-bit MIPS systems this support is at the cost of increasing the
2881	  size and complexity of the compiled FPU emulator. Thus if you are
2882	  running a MIPS32 system and know that none of your userland binaries
2883	  will require 64-bit floating point, you may wish to reduce the size
2884	  of your kernel & potentially improve FP emulation performance by
2885	  saying N here.
2886
2887	  Although binutils currently supports use of this flag the details
2888	  concerning its effect upon the O32 ABI in userland are still being
2889	  worked on. In order to avoid userland becoming dependant upon current
2890	  behaviour before the details have been finalised, this option should
2891	  be considered experimental and only enabled by those working upon
2892	  said details.
2893
2894	  If unsure, say N.
2895
2896config USE_OF
2897	bool
2898	select OF
2899	select OF_EARLY_FLATTREE
2900	select IRQ_DOMAIN
2901
2902config BUILTIN_DTB
2903	bool
2904
2905choice
2906	prompt "Kernel appended dtb support" if USE_OF
2907	default MIPS_NO_APPENDED_DTB
2908
2909	config MIPS_NO_APPENDED_DTB
2910		bool "None"
2911		help
2912		  Do not enable appended dtb support.
2913
2914	config MIPS_ELF_APPENDED_DTB
2915		bool "vmlinux"
2916		help
2917		  With this option, the boot code will look for a device tree binary
2918		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2919		  it is empty and the DTB can be appended using binutils command
2920		  objcopy:
2921
2922		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2923
2924		  This is meant as a backward compatiblity convenience for those
2925		  systems with a bootloader that can't be upgraded to accommodate
2926		  the documented boot protocol using a device tree.
2927
2928	config MIPS_RAW_APPENDED_DTB
2929		bool "vmlinux.bin or vmlinuz.bin"
2930		help
2931		  With this option, the boot code will look for a device tree binary
2932		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2933		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2934
2935		  This is meant as a backward compatibility convenience for those
2936		  systems with a bootloader that can't be upgraded to accommodate
2937		  the documented boot protocol using a device tree.
2938
2939		  Beware that there is very little in terms of protection against
2940		  this option being confused by leftover garbage in memory that might
2941		  look like a DTB header after a reboot if no actual DTB is appended
2942		  to vmlinux.bin.  Do not leave this option active in a production kernel
2943		  if you don't intend to always append a DTB.
2944endchoice
2945
2946choice
2947	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2948	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2949					 !MIPS_MALTA && \
2950					 !CAVIUM_OCTEON_SOC
2951	default MIPS_CMDLINE_FROM_BOOTLOADER
2952
2953	config MIPS_CMDLINE_FROM_DTB
2954		depends on USE_OF
2955		bool "Dtb kernel arguments if available"
2956
2957	config MIPS_CMDLINE_DTB_EXTEND
2958		depends on USE_OF
2959		bool "Extend dtb kernel arguments with bootloader arguments"
2960
2961	config MIPS_CMDLINE_FROM_BOOTLOADER
2962		bool "Bootloader kernel arguments if available"
2963
2964	config MIPS_CMDLINE_BUILTIN_EXTEND
2965		depends on CMDLINE_BOOL
2966		bool "Extend builtin kernel arguments with bootloader arguments"
2967endchoice
2968
2969endmenu
2970
2971config LOCKDEP_SUPPORT
2972	bool
2973	default y
2974
2975config STACKTRACE_SUPPORT
2976	bool
2977	default y
2978
2979config HAVE_LATENCYTOP_SUPPORT
2980	bool
2981	default y
2982
2983config PGTABLE_LEVELS
2984	int
2985	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
2986	default 3 if 64BIT && !PAGE_SIZE_64KB
2987	default 2
2988
2989config MIPS_AUTO_PFN_OFFSET
2990	bool
2991
2992menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2993
2994config HW_HAS_EISA
2995	bool
2996config HW_HAS_PCI
2997	bool
2998
2999config PCI
3000	bool "Support for PCI controller"
3001	depends on HW_HAS_PCI
3002	select PCI_DOMAINS
3003	help
3004	  Find out whether you have a PCI motherboard. PCI is the name of a
3005	  bus system, i.e. the way the CPU talks to the other stuff inside
3006	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3007	  say Y, otherwise N.
3008
3009config HT_PCI
3010	bool "Support for HT-linked PCI"
3011	default y
3012	depends on CPU_LOONGSON3
3013	select PCI
3014	select PCI_DOMAINS
3015	help
3016	  Loongson family machines use Hyper-Transport bus for inter-core
3017	  connection and device connection. The PCI bus is a subordinate
3018	  linked at HT. Choose Y for Loongson-3 based machines.
3019
3020config PCI_DOMAINS
3021	bool
3022
3023config PCI_DOMAINS_GENERIC
3024	bool
3025
3026config PCI_DRIVERS_GENERIC
3027	select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3028	bool
3029
3030config PCI_DRIVERS_LEGACY
3031	def_bool !PCI_DRIVERS_GENERIC
3032	select NO_GENERIC_PCI_IOPORT_MAP
3033
3034source "drivers/pci/Kconfig"
3035
3036#
3037# ISA support is now enabled via select.  Too many systems still have the one
3038# or other ISA chip on the board that users don't know about so don't expect
3039# users to choose the right thing ...
3040#
3041config ISA
3042	bool
3043
3044config EISA
3045	bool "EISA support"
3046	depends on HW_HAS_EISA
3047	select ISA
3048	select GENERIC_ISA_DMA
3049	---help---
3050	  The Extended Industry Standard Architecture (EISA) bus was
3051	  developed as an open alternative to the IBM MicroChannel bus.
3052
3053	  The EISA bus provided some of the features of the IBM MicroChannel
3054	  bus while maintaining backward compatibility with cards made for
3055	  the older ISA bus.  The EISA bus saw limited use between 1988 and
3056	  1995 when it was made obsolete by the PCI bus.
3057
3058	  Say Y here if you are building a kernel for an EISA-based machine.
3059
3060	  Otherwise, say N.
3061
3062source "drivers/eisa/Kconfig"
3063
3064config TC
3065	bool "TURBOchannel support"
3066	depends on MACH_DECSTATION
3067	help
3068	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3069	  processors.  TURBOchannel programming specifications are available
3070	  at:
3071	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3072	  and:
3073	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3074	  Linux driver support status is documented at:
3075	  <http://www.linux-mips.org/wiki/DECstation>
3076
3077config MMU
3078	bool
3079	default y
3080
3081config ARCH_MMAP_RND_BITS_MIN
3082	default 12 if 64BIT
3083	default 8
3084
3085config ARCH_MMAP_RND_BITS_MAX
3086	default 18 if 64BIT
3087	default 15
3088
3089config ARCH_MMAP_RND_COMPAT_BITS_MIN
3090       default 8
3091
3092config ARCH_MMAP_RND_COMPAT_BITS_MAX
3093       default 15
3094
3095config I8253
3096	bool
3097	select CLKSRC_I8253
3098	select CLKEVT_I8253
3099	select MIPS_EXTERNAL_TIMER
3100
3101config ZONE_DMA
3102	bool
3103
3104config ZONE_DMA32
3105	bool
3106
3107source "drivers/pcmcia/Kconfig"
3108
3109config HAS_RAPIDIO
3110	bool
3111	default n
3112
3113config RAPIDIO
3114	tristate "RapidIO support"
3115	depends on HAS_RAPIDIO || PCI
3116	help
3117	  If you say Y here, the kernel will include drivers and
3118	  infrastructure code to support RapidIO interconnect devices.
3119
3120source "drivers/rapidio/Kconfig"
3121
3122endmenu
3123
3124config TRAD_SIGNALS
3125	bool
3126
3127config MIPS32_COMPAT
3128	bool
3129
3130config COMPAT
3131	bool
3132
3133config SYSVIPC_COMPAT
3134	bool
3135
3136config MIPS32_O32
3137	bool "Kernel support for o32 binaries"
3138	depends on 64BIT
3139	select ARCH_WANT_OLD_COMPAT_IPC
3140	select COMPAT
3141	select MIPS32_COMPAT
3142	select SYSVIPC_COMPAT if SYSVIPC
3143	help
3144	  Select this option if you want to run o32 binaries.  These are pure
3145	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3146	  existing binaries are in this format.
3147
3148	  If unsure, say Y.
3149
3150config MIPS32_N32
3151	bool "Kernel support for n32 binaries"
3152	depends on 64BIT
3153	select COMPAT
3154	select MIPS32_COMPAT
3155	select SYSVIPC_COMPAT if SYSVIPC
3156	help
3157	  Select this option if you want to run n32 binaries.  These are
3158	  64-bit binaries using 32-bit quantities for addressing and certain
3159	  data that would normally be 64-bit.  They are used in special
3160	  cases.
3161
3162	  If unsure, say N.
3163
3164config BINFMT_ELF32
3165	bool
3166	default y if MIPS32_O32 || MIPS32_N32
3167	select ELFCORE
3168
3169menu "Power management options"
3170
3171config ARCH_HIBERNATION_POSSIBLE
3172	def_bool y
3173	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3174
3175config ARCH_SUSPEND_POSSIBLE
3176	def_bool y
3177	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3178
3179source "kernel/power/Kconfig"
3180
3181endmenu
3182
3183config MIPS_EXTERNAL_TIMER
3184	bool
3185
3186menu "CPU Power Management"
3187
3188if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3189source "drivers/cpufreq/Kconfig"
3190endif
3191
3192source "drivers/cpuidle/Kconfig"
3193
3194endmenu
3195
3196source "drivers/firmware/Kconfig"
3197
3198source "arch/mips/kvm/Kconfig"
3199