xref: /openbmc/linux/arch/mips/Kconfig (revision 565485b8)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
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_HAS_UBSAN_SANITIZE_ALL
11	select ARCH_SUPPORTS_UPROBES
12	select ARCH_USE_BUILTIN_BSWAP
13	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
14	select ARCH_USE_QUEUED_RWLOCKS
15	select ARCH_USE_QUEUED_SPINLOCKS
16	select ARCH_WANT_IPC_PARSE_VERSION
17	select BUILDTIME_EXTABLE_SORT
18	select CLONE_BACKWARDS
19	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
20	select CPU_PM if CPU_IDLE
21	select GENERIC_ATOMIC64 if !64BIT
22	select GENERIC_CLOCKEVENTS
23	select GENERIC_CMOS_UPDATE
24	select GENERIC_CPU_AUTOPROBE
25	select GENERIC_IOMAP
26	select GENERIC_IRQ_PROBE
27	select GENERIC_IRQ_SHOW
28	select GENERIC_ISA_DMA if EISA
29	select GENERIC_LIB_ASHLDI3
30	select GENERIC_LIB_ASHRDI3
31	select GENERIC_LIB_CMPDI2
32	select GENERIC_LIB_LSHRDI3
33	select GENERIC_LIB_UCMPDI2
34	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
35	select GENERIC_SMP_IDLE_THREAD
36	select GENERIC_TIME_VSYSCALL
37	select HANDLE_DOMAIN_IRQ
38	select HAVE_ARCH_COMPILER_H
39	select HAVE_ARCH_JUMP_LABEL
40	select HAVE_ARCH_KGDB
41	select HAVE_ARCH_MMAP_RND_BITS if MMU
42	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
43	select HAVE_ARCH_SECCOMP_FILTER
44	select HAVE_ARCH_TRACEHOOK
45	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
46	select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
47	select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
48	select HAVE_CONTEXT_TRACKING
49	select HAVE_COPY_THREAD_TLS
50	select HAVE_C_RECORDMCOUNT
51	select HAVE_DEBUG_KMEMLEAK
52	select HAVE_DEBUG_STACKOVERFLOW
53	select HAVE_DMA_CONTIGUOUS
54	select HAVE_DYNAMIC_FTRACE
55	select HAVE_EXIT_THREAD
56	select HAVE_FTRACE_MCOUNT_RECORD
57	select HAVE_FUNCTION_GRAPH_TRACER
58	select HAVE_FUNCTION_TRACER
59	select HAVE_GENERIC_DMA_COHERENT
60	select HAVE_IDE
61	select HAVE_IOREMAP_PROT
62	select HAVE_IRQ_EXIT_ON_IRQ_STACK
63	select HAVE_IRQ_TIME_ACCOUNTING
64	select HAVE_KPROBES
65	select HAVE_KRETPROBES
66	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
67	select HAVE_MEMBLOCK_NODE_MAP
68	select HAVE_MOD_ARCH_SPECIFIC
69	select HAVE_NMI
70	select HAVE_OPROFILE
71	select HAVE_PERF_EVENTS
72	select HAVE_REGS_AND_STACK_ACCESS_API
73	select HAVE_RSEQ
74	select HAVE_STACKPROTECTOR
75	select HAVE_SYSCALL_TRACEPOINTS
76	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
77	select IRQ_FORCED_THREADING
78	select ISA if EISA
79	select MODULES_USE_ELF_RELA if MODULES && 64BIT
80	select MODULES_USE_ELF_REL if MODULES
81	select PERF_USE_VMALLOC
82	select RTC_LIB
83	select SYSCTL_EXCEPTION_TRACE
84	select VIRT_TO_BUS
85
86menu "Machine selection"
87
88choice
89	prompt "System type"
90	default MIPS_GENERIC
91
92config MIPS_GENERIC
93	bool "Generic board-agnostic MIPS kernel"
94	select BOOT_RAW
95	select BUILTIN_DTB
96	select CEVT_R4K
97	select CLKSRC_MIPS_GIC
98	select COMMON_CLK
99	select CPU_MIPSR2_IRQ_VI
100	select CPU_MIPSR2_IRQ_EI
101	select CSRC_R4K
102	select DMA_PERDEV_COHERENT
103	select HAVE_PCI
104	select IRQ_MIPS_CPU
105	select LIBFDT
106	select MIPS_AUTO_PFN_OFFSET
107	select MIPS_CPU_SCACHE
108	select MIPS_GIC
109	select MIPS_L1_CACHE_SHIFT_7
110	select NO_EXCEPT_FILL
111	select PCI_DRIVERS_GENERIC
112	select PINCTRL
113	select SMP_UP if SMP
114	select SWAP_IO_SPACE
115	select SYS_HAS_CPU_MIPS32_R1
116	select SYS_HAS_CPU_MIPS32_R2
117	select SYS_HAS_CPU_MIPS32_R6
118	select SYS_HAS_CPU_MIPS64_R1
119	select SYS_HAS_CPU_MIPS64_R2
120	select SYS_HAS_CPU_MIPS64_R6
121	select SYS_SUPPORTS_32BIT_KERNEL
122	select SYS_SUPPORTS_64BIT_KERNEL
123	select SYS_SUPPORTS_BIG_ENDIAN
124	select SYS_SUPPORTS_HIGHMEM
125	select SYS_SUPPORTS_LITTLE_ENDIAN
126	select SYS_SUPPORTS_MICROMIPS
127	select SYS_SUPPORTS_MIPS_CPS
128	select SYS_SUPPORTS_MIPS16
129	select SYS_SUPPORTS_MULTITHREADING
130	select SYS_SUPPORTS_RELOCATABLE
131	select SYS_SUPPORTS_SMARTMIPS
132	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
133	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
134	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
135	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
136	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
137	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
138	select USE_OF
139	select UHI_BOOT
140	help
141	  Select this to build a kernel which aims to support multiple boards,
142	  generally using a flattened device tree passed from the bootloader
143	  using the boot protocol defined in the UHI (Unified Hosting
144	  Interface) specification.
145
146config MIPS_ALCHEMY
147	bool "Alchemy processor based machines"
148	select PHYS_ADDR_T_64BIT
149	select CEVT_R4K
150	select CSRC_R4K
151	select IRQ_MIPS_CPU
152	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
153	select SYS_HAS_CPU_MIPS32_R1
154	select SYS_SUPPORTS_32BIT_KERNEL
155	select SYS_SUPPORTS_APM_EMULATION
156	select GPIOLIB
157	select SYS_SUPPORTS_ZBOOT
158	select COMMON_CLK
159
160config AR7
161	bool "Texas Instruments AR7"
162	select BOOT_ELF32
163	select DMA_NONCOHERENT
164	select CEVT_R4K
165	select CSRC_R4K
166	select IRQ_MIPS_CPU
167	select NO_EXCEPT_FILL
168	select SWAP_IO_SPACE
169	select SYS_HAS_CPU_MIPS32_R1
170	select SYS_HAS_EARLY_PRINTK
171	select SYS_SUPPORTS_32BIT_KERNEL
172	select SYS_SUPPORTS_LITTLE_ENDIAN
173	select SYS_SUPPORTS_MIPS16
174	select SYS_SUPPORTS_ZBOOT_UART16550
175	select GPIOLIB
176	select VLYNQ
177	select HAVE_CLK
178	help
179	  Support for the Texas Instruments AR7 System-on-a-Chip
180	  family: TNETD7100, 7200 and 7300.
181
182config ATH25
183	bool "Atheros AR231x/AR531x SoC support"
184	select CEVT_R4K
185	select CSRC_R4K
186	select DMA_NONCOHERENT
187	select IRQ_MIPS_CPU
188	select IRQ_DOMAIN
189	select SYS_HAS_CPU_MIPS32_R1
190	select SYS_SUPPORTS_BIG_ENDIAN
191	select SYS_SUPPORTS_32BIT_KERNEL
192	select SYS_HAS_EARLY_PRINTK
193	help
194	  Support for Atheros AR231x and Atheros AR531x based boards
195
196config ATH79
197	bool "Atheros AR71XX/AR724X/AR913X based boards"
198	select ARCH_HAS_RESET_CONTROLLER
199	select BOOT_RAW
200	select CEVT_R4K
201	select CSRC_R4K
202	select DMA_NONCOHERENT
203	select GPIOLIB
204	select PINCTRL
205	select HAVE_CLK
206	select COMMON_CLK
207	select CLKDEV_LOOKUP
208	select IRQ_MIPS_CPU
209	select SYS_HAS_CPU_MIPS32_R2
210	select SYS_HAS_EARLY_PRINTK
211	select SYS_SUPPORTS_32BIT_KERNEL
212	select SYS_SUPPORTS_BIG_ENDIAN
213	select SYS_SUPPORTS_MIPS16
214	select SYS_SUPPORTS_ZBOOT_UART_PROM
215	select USE_OF
216	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
217	help
218	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
219
220config BMIPS_GENERIC
221	bool "Broadcom Generic BMIPS kernel"
222	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
223	select ARCH_HAS_PHYS_TO_DMA
224	select BOOT_RAW
225	select NO_EXCEPT_FILL
226	select USE_OF
227	select CEVT_R4K
228	select CSRC_R4K
229	select SYNC_R4K
230	select COMMON_CLK
231	select BCM6345_L1_IRQ
232	select BCM7038_L1_IRQ
233	select BCM7120_L2_IRQ
234	select BRCMSTB_L2_IRQ
235	select IRQ_MIPS_CPU
236	select DMA_NONCOHERENT
237	select SYS_SUPPORTS_32BIT_KERNEL
238	select SYS_SUPPORTS_LITTLE_ENDIAN
239	select SYS_SUPPORTS_BIG_ENDIAN
240	select SYS_SUPPORTS_HIGHMEM
241	select SYS_HAS_CPU_BMIPS32_3300
242	select SYS_HAS_CPU_BMIPS4350
243	select SYS_HAS_CPU_BMIPS4380
244	select SYS_HAS_CPU_BMIPS5000
245	select SWAP_IO_SPACE
246	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
247	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
248	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
249	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
250	select HARDIRQS_SW_RESEND
251	help
252	  Build a generic DT-based kernel image that boots on select
253	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
254	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
255	  must be set appropriately for your board.
256
257config BCM47XX
258	bool "Broadcom BCM47XX based boards"
259	select BOOT_RAW
260	select CEVT_R4K
261	select CSRC_R4K
262	select DMA_NONCOHERENT
263	select HAVE_PCI
264	select IRQ_MIPS_CPU
265	select SYS_HAS_CPU_MIPS32_R1
266	select NO_EXCEPT_FILL
267	select SYS_SUPPORTS_32BIT_KERNEL
268	select SYS_SUPPORTS_LITTLE_ENDIAN
269	select SYS_SUPPORTS_MIPS16
270	select SYS_SUPPORTS_ZBOOT
271	select SYS_HAS_EARLY_PRINTK
272	select USE_GENERIC_EARLY_PRINTK_8250
273	select GPIOLIB
274	select LEDS_GPIO_REGISTER
275	select BCM47XX_NVRAM
276	select BCM47XX_SPROM
277	select BCM47XX_SSB if !BCM47XX_BCMA
278	help
279	 Support for BCM47XX based boards
280
281config BCM63XX
282	bool "Broadcom BCM63XX based boards"
283	select BOOT_RAW
284	select CEVT_R4K
285	select CSRC_R4K
286	select SYNC_R4K
287	select DMA_NONCOHERENT
288	select IRQ_MIPS_CPU
289	select SYS_SUPPORTS_32BIT_KERNEL
290	select SYS_SUPPORTS_BIG_ENDIAN
291	select SYS_HAS_EARLY_PRINTK
292	select SWAP_IO_SPACE
293	select GPIOLIB
294	select HAVE_CLK
295	select MIPS_L1_CACHE_SHIFT_4
296	select CLKDEV_LOOKUP
297	help
298	 Support for BCM63XX based boards
299
300config MIPS_COBALT
301	bool "Cobalt Server"
302	select CEVT_R4K
303	select CSRC_R4K
304	select CEVT_GT641XX
305	select DMA_NONCOHERENT
306	select FORCE_PCI
307	select I8253
308	select I8259
309	select IRQ_MIPS_CPU
310	select IRQ_GT641XX
311	select PCI_GT64XXX_PCI0
312	select SYS_HAS_CPU_NEVADA
313	select SYS_HAS_EARLY_PRINTK
314	select SYS_SUPPORTS_32BIT_KERNEL
315	select SYS_SUPPORTS_64BIT_KERNEL
316	select SYS_SUPPORTS_LITTLE_ENDIAN
317	select USE_GENERIC_EARLY_PRINTK_8250
318
319config MACH_DECSTATION
320	bool "DECstations"
321	select BOOT_ELF32
322	select CEVT_DS1287
323	select CEVT_R4K if CPU_R4X00
324	select CSRC_IOASIC
325	select CSRC_R4K if CPU_R4X00
326	select CPU_DADDI_WORKAROUNDS if 64BIT
327	select CPU_R4000_WORKAROUNDS if 64BIT
328	select CPU_R4400_WORKAROUNDS if 64BIT
329	select DMA_NONCOHERENT
330	select NO_IOPORT_MAP
331	select IRQ_MIPS_CPU
332	select SYS_HAS_CPU_R3000
333	select SYS_HAS_CPU_R4X00
334	select SYS_SUPPORTS_32BIT_KERNEL
335	select SYS_SUPPORTS_64BIT_KERNEL
336	select SYS_SUPPORTS_LITTLE_ENDIAN
337	select SYS_SUPPORTS_128HZ
338	select SYS_SUPPORTS_256HZ
339	select SYS_SUPPORTS_1024HZ
340	select MIPS_L1_CACHE_SHIFT_4
341	help
342	  This enables support for DEC's MIPS based workstations.  For details
343	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
344	  DECstation porting pages on <http://decstation.unix-ag.org/>.
345
346	  If you have one of the following DECstation Models you definitely
347	  want to choose R4xx0 for the CPU Type:
348
349		DECstation 5000/50
350		DECstation 5000/150
351		DECstation 5000/260
352		DECsystem 5900/260
353
354	  otherwise choose R3000.
355
356config MACH_JAZZ
357	bool "Jazz family of machines"
358	select ARCH_MIGHT_HAVE_PC_PARPORT
359	select ARCH_MIGHT_HAVE_PC_SERIO
360	select FW_ARC
361	select FW_ARC32
362	select ARCH_MAY_HAVE_PC_FDC
363	select CEVT_R4K
364	select CSRC_R4K
365	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
366	select GENERIC_ISA_DMA
367	select HAVE_PCSPKR_PLATFORM
368	select IRQ_MIPS_CPU
369	select I8253
370	select I8259
371	select ISA
372	select SYS_HAS_CPU_R4X00
373	select SYS_SUPPORTS_32BIT_KERNEL
374	select SYS_SUPPORTS_64BIT_KERNEL
375	select SYS_SUPPORTS_100HZ
376	help
377	 This a family of machines based on the MIPS R4030 chipset which was
378	 used by several vendors to build RISC/os and Windows NT workstations.
379	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
380	 Olivetti M700-10 workstations.
381
382config MACH_INGENIC
383	bool "Ingenic SoC based machines"
384	select SYS_SUPPORTS_32BIT_KERNEL
385	select SYS_SUPPORTS_LITTLE_ENDIAN
386	select SYS_SUPPORTS_ZBOOT_UART16550
387	select DMA_NONCOHERENT
388	select IRQ_MIPS_CPU
389	select PINCTRL
390	select GPIOLIB
391	select COMMON_CLK
392	select GENERIC_IRQ_CHIP
393	select BUILTIN_DTB
394	select USE_OF
395	select LIBFDT
396
397config LANTIQ
398	bool "Lantiq based platforms"
399	select DMA_NONCOHERENT
400	select IRQ_MIPS_CPU
401	select CEVT_R4K
402	select CSRC_R4K
403	select SYS_HAS_CPU_MIPS32_R1
404	select SYS_HAS_CPU_MIPS32_R2
405	select SYS_SUPPORTS_BIG_ENDIAN
406	select SYS_SUPPORTS_32BIT_KERNEL
407	select SYS_SUPPORTS_MIPS16
408	select SYS_SUPPORTS_MULTITHREADING
409	select SYS_SUPPORTS_VPE_LOADER
410	select SYS_HAS_EARLY_PRINTK
411	select GPIOLIB
412	select SWAP_IO_SPACE
413	select BOOT_RAW
414	select CLKDEV_LOOKUP
415	select USE_OF
416	select PINCTRL
417	select PINCTRL_LANTIQ
418	select ARCH_HAS_RESET_CONTROLLER
419	select RESET_CONTROLLER
420
421config LASAT
422	bool "LASAT Networks platforms"
423	select CEVT_R4K
424	select CRC32
425	select CSRC_R4K
426	select DMA_NONCOHERENT
427	select SYS_HAS_EARLY_PRINTK
428	select HAVE_PCI
429	select IRQ_MIPS_CPU
430	select PCI_GT64XXX_PCI0
431	select MIPS_NILE4
432	select R5000_CPU_SCACHE
433	select SYS_HAS_CPU_R5000
434	select SYS_SUPPORTS_32BIT_KERNEL
435	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
436	select SYS_SUPPORTS_LITTLE_ENDIAN
437
438config MACH_LOONGSON32
439	bool "Loongson-1 family of machines"
440	select SYS_SUPPORTS_ZBOOT
441	help
442	  This enables support for the Loongson-1 family of machines.
443
444	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
445	  the Institute of Computing Technology (ICT), Chinese Academy of
446	  Sciences (CAS).
447
448config MACH_LOONGSON64
449	bool "Loongson-2/3 family of machines"
450	select SYS_SUPPORTS_ZBOOT
451	help
452	  This enables the support of Loongson-2/3 family of machines.
453
454	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
455	  family of multi-core CPUs. They are both 64-bit general-purpose
456	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
457	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
458	  in the People's Republic of China. The chief architect is Professor
459	  Weiwu Hu.
460
461config MACH_PISTACHIO
462	bool "IMG Pistachio SoC based boards"
463	select BOOT_ELF32
464	select BOOT_RAW
465	select CEVT_R4K
466	select CLKSRC_MIPS_GIC
467	select COMMON_CLK
468	select CSRC_R4K
469	select DMA_NONCOHERENT
470	select GPIOLIB
471	select IRQ_MIPS_CPU
472	select LIBFDT
473	select MFD_SYSCON
474	select MIPS_CPU_SCACHE
475	select MIPS_GIC
476	select PINCTRL
477	select REGULATOR
478	select SYS_HAS_CPU_MIPS32_R2
479	select SYS_SUPPORTS_32BIT_KERNEL
480	select SYS_SUPPORTS_LITTLE_ENDIAN
481	select SYS_SUPPORTS_MIPS_CPS
482	select SYS_SUPPORTS_MULTITHREADING
483	select SYS_SUPPORTS_RELOCATABLE
484	select SYS_SUPPORTS_ZBOOT
485	select SYS_HAS_EARLY_PRINTK
486	select USE_GENERIC_EARLY_PRINTK_8250
487	select USE_OF
488	help
489	  This enables support for the IMG Pistachio SoC platform.
490
491config MIPS_MALTA
492	bool "MIPS Malta board"
493	select ARCH_MAY_HAVE_PC_FDC
494	select ARCH_MIGHT_HAVE_PC_PARPORT
495	select ARCH_MIGHT_HAVE_PC_SERIO
496	select BOOT_ELF32
497	select BOOT_RAW
498	select BUILTIN_DTB
499	select CEVT_R4K
500	select CLKSRC_MIPS_GIC
501	select COMMON_CLK
502	select CSRC_R4K
503	select DMA_MAYBE_COHERENT
504	select GENERIC_ISA_DMA
505	select HAVE_PCSPKR_PLATFORM
506	select HAVE_PCI
507	select I8253
508	select I8259
509	select IRQ_MIPS_CPU
510	select LIBFDT
511	select MIPS_BONITO64
512	select MIPS_CPU_SCACHE
513	select MIPS_GIC
514	select MIPS_L1_CACHE_SHIFT_6
515	select MIPS_MSC
516	select PCI_GT64XXX_PCI0
517	select SMP_UP if SMP
518	select SWAP_IO_SPACE
519	select SYS_HAS_CPU_MIPS32_R1
520	select SYS_HAS_CPU_MIPS32_R2
521	select SYS_HAS_CPU_MIPS32_R3_5
522	select SYS_HAS_CPU_MIPS32_R5
523	select SYS_HAS_CPU_MIPS32_R6
524	select SYS_HAS_CPU_MIPS64_R1
525	select SYS_HAS_CPU_MIPS64_R2
526	select SYS_HAS_CPU_MIPS64_R6
527	select SYS_HAS_CPU_NEVADA
528	select SYS_HAS_CPU_RM7000
529	select SYS_SUPPORTS_32BIT_KERNEL
530	select SYS_SUPPORTS_64BIT_KERNEL
531	select SYS_SUPPORTS_BIG_ENDIAN
532	select SYS_SUPPORTS_HIGHMEM
533	select SYS_SUPPORTS_LITTLE_ENDIAN
534	select SYS_SUPPORTS_MICROMIPS
535	select SYS_SUPPORTS_MIPS16
536	select SYS_SUPPORTS_MIPS_CMP
537	select SYS_SUPPORTS_MIPS_CPS
538	select SYS_SUPPORTS_MULTITHREADING
539	select SYS_SUPPORTS_RELOCATABLE
540	select SYS_SUPPORTS_SMARTMIPS
541	select SYS_SUPPORTS_VPE_LOADER
542	select SYS_SUPPORTS_ZBOOT
543	select USE_OF
544	select ZONE_DMA32 if 64BIT
545	help
546	  This enables support for the MIPS Technologies Malta evaluation
547	  board.
548
549config MACH_PIC32
550	bool "Microchip PIC32 Family"
551	help
552	  This enables support for the Microchip PIC32 family of platforms.
553
554	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
555	  microcontrollers.
556
557config NEC_MARKEINS
558	bool "NEC EMMA2RH Mark-eins board"
559	select SOC_EMMA2RH
560	select HAVE_PCI
561	help
562	  This enables support for the NEC Electronics Mark-eins boards.
563
564config MACH_VR41XX
565	bool "NEC VR4100 series based machines"
566	select CEVT_R4K
567	select CSRC_R4K
568	select SYS_HAS_CPU_VR41XX
569	select SYS_SUPPORTS_MIPS16
570	select GPIOLIB
571
572config NXP_STB220
573	bool "NXP STB220 board"
574	select SOC_PNX833X
575	help
576	 Support for NXP Semiconductors STB220 Development Board.
577
578config NXP_STB225
579	bool "NXP 225 board"
580	select SOC_PNX833X
581	select SOC_PNX8335
582	help
583	 Support for NXP Semiconductors STB225 Development Board.
584
585config PMC_MSP
586	bool "PMC-Sierra MSP chipsets"
587	select CEVT_R4K
588	select CSRC_R4K
589	select DMA_NONCOHERENT
590	select SWAP_IO_SPACE
591	select NO_EXCEPT_FILL
592	select BOOT_RAW
593	select SYS_HAS_CPU_MIPS32_R1
594	select SYS_HAS_CPU_MIPS32_R2
595	select SYS_SUPPORTS_32BIT_KERNEL
596	select SYS_SUPPORTS_BIG_ENDIAN
597	select SYS_SUPPORTS_MIPS16
598	select IRQ_MIPS_CPU
599	select SERIAL_8250
600	select SERIAL_8250_CONSOLE
601	select USB_EHCI_BIG_ENDIAN_MMIO
602	select USB_EHCI_BIG_ENDIAN_DESC
603	help
604	  This adds support for the PMC-Sierra family of Multi-Service
605	  Processor System-On-A-Chips.  These parts include a number
606	  of integrated peripherals, interfaces and DSPs in addition to
607	  a variety of MIPS cores.
608
609config RALINK
610	bool "Ralink based machines"
611	select CEVT_R4K
612	select CSRC_R4K
613	select BOOT_RAW
614	select DMA_NONCOHERENT
615	select IRQ_MIPS_CPU
616	select USE_OF
617	select SYS_HAS_CPU_MIPS32_R1
618	select SYS_HAS_CPU_MIPS32_R2
619	select SYS_SUPPORTS_32BIT_KERNEL
620	select SYS_SUPPORTS_LITTLE_ENDIAN
621	select SYS_SUPPORTS_MIPS16
622	select SYS_HAS_EARLY_PRINTK
623	select CLKDEV_LOOKUP
624	select ARCH_HAS_RESET_CONTROLLER
625	select RESET_CONTROLLER
626
627config SGI_IP22
628	bool "SGI IP22 (Indy/Indigo2)"
629	select FW_ARC
630	select FW_ARC32
631	select ARCH_MIGHT_HAVE_PC_SERIO
632	select BOOT_ELF32
633	select CEVT_R4K
634	select CSRC_R4K
635	select DEFAULT_SGI_PARTITION
636	select DMA_NONCOHERENT
637	select HAVE_EISA
638	select I8253
639	select I8259
640	select IP22_CPU_SCACHE
641	select IRQ_MIPS_CPU
642	select GENERIC_ISA_DMA_SUPPORT_BROKEN
643	select SGI_HAS_I8042
644	select SGI_HAS_INDYDOG
645	select SGI_HAS_HAL2
646	select SGI_HAS_SEEQ
647	select SGI_HAS_WD93
648	select SGI_HAS_ZILOG
649	select SWAP_IO_SPACE
650	select SYS_HAS_CPU_R4X00
651	select SYS_HAS_CPU_R5000
652	#
653	# Disable EARLY_PRINTK for now since it leads to overwritten prom
654	# memory during early boot on some machines.
655	#
656	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
657	# for a more details discussion
658	#
659	# select SYS_HAS_EARLY_PRINTK
660	select SYS_SUPPORTS_32BIT_KERNEL
661	select SYS_SUPPORTS_64BIT_KERNEL
662	select SYS_SUPPORTS_BIG_ENDIAN
663	select MIPS_L1_CACHE_SHIFT_7
664	help
665	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
666	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
667	  that runs on these, say Y here.
668
669config SGI_IP27
670	bool "SGI IP27 (Origin200/2000)"
671	select ARCH_HAS_PHYS_TO_DMA
672	select FW_ARC
673	select FW_ARC64
674	select BOOT_ELF64
675	select DEFAULT_SGI_PARTITION
676	select SYS_HAS_EARLY_PRINTK
677	select HAVE_PCI
678	select NR_CPUS_DEFAULT_64
679	select SYS_HAS_CPU_R10000
680	select SYS_SUPPORTS_64BIT_KERNEL
681	select SYS_SUPPORTS_BIG_ENDIAN
682	select SYS_SUPPORTS_NUMA
683	select SYS_SUPPORTS_SMP
684	select MIPS_L1_CACHE_SHIFT_7
685	help
686	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
687	  workstations.  To compile a Linux kernel that runs on these, say Y
688	  here.
689
690config SGI_IP28
691	bool "SGI IP28 (Indigo2 R10k)"
692	select FW_ARC
693	select FW_ARC64
694	select ARCH_MIGHT_HAVE_PC_SERIO
695	select BOOT_ELF64
696	select CEVT_R4K
697	select CSRC_R4K
698	select DEFAULT_SGI_PARTITION
699	select DMA_NONCOHERENT
700	select GENERIC_ISA_DMA_SUPPORT_BROKEN
701	select IRQ_MIPS_CPU
702	select HAVE_EISA
703	select I8253
704	select I8259
705	select SGI_HAS_I8042
706	select SGI_HAS_INDYDOG
707	select SGI_HAS_HAL2
708	select SGI_HAS_SEEQ
709	select SGI_HAS_WD93
710	select SGI_HAS_ZILOG
711	select SWAP_IO_SPACE
712	select SYS_HAS_CPU_R10000
713	#
714	# Disable EARLY_PRINTK for now since it leads to overwritten prom
715	# memory during early boot on some machines.
716	#
717	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
718	# for a more details discussion
719	#
720	# select SYS_HAS_EARLY_PRINTK
721	select SYS_SUPPORTS_64BIT_KERNEL
722	select SYS_SUPPORTS_BIG_ENDIAN
723	select MIPS_L1_CACHE_SHIFT_7
724      help
725        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
726        kernel that runs on these, say Y here.
727
728config SGI_IP32
729	bool "SGI IP32 (O2)"
730	select ARCH_HAS_PHYS_TO_DMA
731	select FW_ARC
732	select FW_ARC32
733	select BOOT_ELF32
734	select CEVT_R4K
735	select CSRC_R4K
736	select DMA_NONCOHERENT
737	select HAVE_PCI
738	select IRQ_MIPS_CPU
739	select R5000_CPU_SCACHE
740	select RM7000_CPU_SCACHE
741	select SYS_HAS_CPU_R5000
742	select SYS_HAS_CPU_R10000 if BROKEN
743	select SYS_HAS_CPU_RM7000
744	select SYS_HAS_CPU_NEVADA
745	select SYS_SUPPORTS_64BIT_KERNEL
746	select SYS_SUPPORTS_BIG_ENDIAN
747	help
748	  If you want this kernel to run on SGI O2 workstation, say Y here.
749
750config SIBYTE_CRHINE
751	bool "Sibyte BCM91120C-CRhine"
752	select BOOT_ELF32
753	select SIBYTE_BCM1120
754	select SWAP_IO_SPACE
755	select SYS_HAS_CPU_SB1
756	select SYS_SUPPORTS_BIG_ENDIAN
757	select SYS_SUPPORTS_LITTLE_ENDIAN
758
759config SIBYTE_CARMEL
760	bool "Sibyte BCM91120x-Carmel"
761	select BOOT_ELF32
762	select SIBYTE_BCM1120
763	select SWAP_IO_SPACE
764	select SYS_HAS_CPU_SB1
765	select SYS_SUPPORTS_BIG_ENDIAN
766	select SYS_SUPPORTS_LITTLE_ENDIAN
767
768config SIBYTE_CRHONE
769	bool "Sibyte BCM91125C-CRhone"
770	select BOOT_ELF32
771	select SIBYTE_BCM1125
772	select SWAP_IO_SPACE
773	select SYS_HAS_CPU_SB1
774	select SYS_SUPPORTS_BIG_ENDIAN
775	select SYS_SUPPORTS_HIGHMEM
776	select SYS_SUPPORTS_LITTLE_ENDIAN
777
778config SIBYTE_RHONE
779	bool "Sibyte BCM91125E-Rhone"
780	select BOOT_ELF32
781	select SIBYTE_BCM1125H
782	select SWAP_IO_SPACE
783	select SYS_HAS_CPU_SB1
784	select SYS_SUPPORTS_BIG_ENDIAN
785	select SYS_SUPPORTS_LITTLE_ENDIAN
786
787config SIBYTE_SWARM
788	bool "Sibyte BCM91250A-SWARM"
789	select BOOT_ELF32
790	select HAVE_PATA_PLATFORM
791	select SIBYTE_SB1250
792	select SWAP_IO_SPACE
793	select SYS_HAS_CPU_SB1
794	select SYS_SUPPORTS_BIG_ENDIAN
795	select SYS_SUPPORTS_HIGHMEM
796	select SYS_SUPPORTS_LITTLE_ENDIAN
797	select ZONE_DMA32 if 64BIT
798	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
799
800config SIBYTE_LITTLESUR
801	bool "Sibyte BCM91250C2-LittleSur"
802	select BOOT_ELF32
803	select HAVE_PATA_PLATFORM
804	select SIBYTE_SB1250
805	select SWAP_IO_SPACE
806	select SYS_HAS_CPU_SB1
807	select SYS_SUPPORTS_BIG_ENDIAN
808	select SYS_SUPPORTS_HIGHMEM
809	select SYS_SUPPORTS_LITTLE_ENDIAN
810	select ZONE_DMA32 if 64BIT
811
812config SIBYTE_SENTOSA
813	bool "Sibyte BCM91250E-Sentosa"
814	select BOOT_ELF32
815	select SIBYTE_SB1250
816	select SWAP_IO_SPACE
817	select SYS_HAS_CPU_SB1
818	select SYS_SUPPORTS_BIG_ENDIAN
819	select SYS_SUPPORTS_LITTLE_ENDIAN
820	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
821
822config SIBYTE_BIGSUR
823	bool "Sibyte BCM91480B-BigSur"
824	select BOOT_ELF32
825	select NR_CPUS_DEFAULT_4
826	select SIBYTE_BCM1x80
827	select SWAP_IO_SPACE
828	select SYS_HAS_CPU_SB1
829	select SYS_SUPPORTS_BIG_ENDIAN
830	select SYS_SUPPORTS_HIGHMEM
831	select SYS_SUPPORTS_LITTLE_ENDIAN
832	select ZONE_DMA32 if 64BIT
833	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
834
835config SNI_RM
836	bool "SNI RM200/300/400"
837	select FW_ARC if CPU_LITTLE_ENDIAN
838	select FW_ARC32 if CPU_LITTLE_ENDIAN
839	select FW_SNIPROM if CPU_BIG_ENDIAN
840	select ARCH_MAY_HAVE_PC_FDC
841	select ARCH_MIGHT_HAVE_PC_PARPORT
842	select ARCH_MIGHT_HAVE_PC_SERIO
843	select BOOT_ELF32
844	select CEVT_R4K
845	select CSRC_R4K
846	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
847	select DMA_NONCOHERENT
848	select GENERIC_ISA_DMA
849	select HAVE_EISA
850	select HAVE_PCSPKR_PLATFORM
851	select HAVE_PCI
852	select IRQ_MIPS_CPU
853	select I8253
854	select I8259
855	select ISA
856	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
857	select SYS_HAS_CPU_R4X00
858	select SYS_HAS_CPU_R5000
859	select SYS_HAS_CPU_R10000
860	select R5000_CPU_SCACHE
861	select SYS_HAS_EARLY_PRINTK
862	select SYS_SUPPORTS_32BIT_KERNEL
863	select SYS_SUPPORTS_64BIT_KERNEL
864	select SYS_SUPPORTS_BIG_ENDIAN
865	select SYS_SUPPORTS_HIGHMEM
866	select SYS_SUPPORTS_LITTLE_ENDIAN
867	help
868	  The SNI RM200/300/400 are MIPS-based machines manufactured by
869	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
870	  Technology and now in turn merged with Fujitsu.  Say Y here to
871	  support this machine type.
872
873config MACH_TX39XX
874	bool "Toshiba TX39 series based machines"
875
876config MACH_TX49XX
877	bool "Toshiba TX49 series based machines"
878
879config MIKROTIK_RB532
880	bool "Mikrotik RB532 boards"
881	select CEVT_R4K
882	select CSRC_R4K
883	select DMA_NONCOHERENT
884	select HAVE_PCI
885	select IRQ_MIPS_CPU
886	select SYS_HAS_CPU_MIPS32_R1
887	select SYS_SUPPORTS_32BIT_KERNEL
888	select SYS_SUPPORTS_LITTLE_ENDIAN
889	select SWAP_IO_SPACE
890	select BOOT_RAW
891	select GPIOLIB
892	select MIPS_L1_CACHE_SHIFT_4
893	help
894	  Support the Mikrotik(tm) RouterBoard 532 series,
895	  based on the IDT RC32434 SoC.
896
897config CAVIUM_OCTEON_SOC
898	bool "Cavium Networks Octeon SoC based boards"
899	select CEVT_R4K
900	select ARCH_HAS_PHYS_TO_DMA
901	select HAVE_RAPIDIO
902	select PHYS_ADDR_T_64BIT
903	select SYS_SUPPORTS_64BIT_KERNEL
904	select SYS_SUPPORTS_BIG_ENDIAN
905	select EDAC_SUPPORT
906	select EDAC_ATOMIC_SCRUB
907	select SYS_SUPPORTS_LITTLE_ENDIAN
908	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
909	select SYS_HAS_EARLY_PRINTK
910	select SYS_HAS_CPU_CAVIUM_OCTEON
911	select HAVE_PCI
912	select ZONE_DMA32
913	select HOLES_IN_ZONE
914	select GPIOLIB
915	select LIBFDT
916	select USE_OF
917	select ARCH_SPARSEMEM_ENABLE
918	select SYS_SUPPORTS_SMP
919	select NR_CPUS_DEFAULT_64
920	select MIPS_NR_CPU_NR_MAP_1024
921	select BUILTIN_DTB
922	select MTD_COMPLEX_MAPPINGS
923	select SWIOTLB
924	select SYS_SUPPORTS_RELOCATABLE
925	help
926	  This option supports all of the Octeon reference boards from Cavium
927	  Networks. It builds a kernel that dynamically determines the Octeon
928	  CPU type and supports all known board reference implementations.
929	  Some of the supported boards are:
930		EBT3000
931		EBH3000
932		EBH3100
933		Thunder
934		Kodama
935		Hikari
936	  Say Y here for most Octeon reference boards.
937
938config NLM_XLR_BOARD
939	bool "Netlogic XLR/XLS based systems"
940	select BOOT_ELF32
941	select NLM_COMMON
942	select SYS_HAS_CPU_XLR
943	select SYS_SUPPORTS_SMP
944	select HAVE_PCI
945	select SWAP_IO_SPACE
946	select SYS_SUPPORTS_32BIT_KERNEL
947	select SYS_SUPPORTS_64BIT_KERNEL
948	select PHYS_ADDR_T_64BIT
949	select SYS_SUPPORTS_BIG_ENDIAN
950	select SYS_SUPPORTS_HIGHMEM
951	select NR_CPUS_DEFAULT_32
952	select CEVT_R4K
953	select CSRC_R4K
954	select IRQ_MIPS_CPU
955	select ZONE_DMA32 if 64BIT
956	select SYNC_R4K
957	select SYS_HAS_EARLY_PRINTK
958	select SYS_SUPPORTS_ZBOOT
959	select SYS_SUPPORTS_ZBOOT_UART16550
960	help
961	  Support for systems based on Netlogic XLR and XLS processors.
962	  Say Y here if you have a XLR or XLS based board.
963
964config NLM_XLP_BOARD
965	bool "Netlogic XLP based systems"
966	select BOOT_ELF32
967	select NLM_COMMON
968	select SYS_HAS_CPU_XLP
969	select SYS_SUPPORTS_SMP
970	select HAVE_PCI
971	select SYS_SUPPORTS_32BIT_KERNEL
972	select SYS_SUPPORTS_64BIT_KERNEL
973	select PHYS_ADDR_T_64BIT
974	select GPIOLIB
975	select SYS_SUPPORTS_BIG_ENDIAN
976	select SYS_SUPPORTS_LITTLE_ENDIAN
977	select SYS_SUPPORTS_HIGHMEM
978	select NR_CPUS_DEFAULT_32
979	select CEVT_R4K
980	select CSRC_R4K
981	select IRQ_MIPS_CPU
982	select ZONE_DMA32 if 64BIT
983	select SYNC_R4K
984	select SYS_HAS_EARLY_PRINTK
985	select USE_OF
986	select SYS_SUPPORTS_ZBOOT
987	select SYS_SUPPORTS_ZBOOT_UART16550
988	help
989	  This board is based on Netlogic XLP Processor.
990	  Say Y here if you have a XLP based board.
991
992config MIPS_PARAVIRT
993	bool "Para-Virtualized guest system"
994	select CEVT_R4K
995	select CSRC_R4K
996	select SYS_SUPPORTS_64BIT_KERNEL
997	select SYS_SUPPORTS_32BIT_KERNEL
998	select SYS_SUPPORTS_BIG_ENDIAN
999	select SYS_SUPPORTS_SMP
1000	select NR_CPUS_DEFAULT_4
1001	select SYS_HAS_EARLY_PRINTK
1002	select SYS_HAS_CPU_MIPS32_R2
1003	select SYS_HAS_CPU_MIPS64_R2
1004	select SYS_HAS_CPU_CAVIUM_OCTEON
1005	select HAVE_PCI
1006	select SWAP_IO_SPACE
1007	help
1008	  This option supports guest running under ????
1009
1010endchoice
1011
1012source "arch/mips/alchemy/Kconfig"
1013source "arch/mips/ath25/Kconfig"
1014source "arch/mips/ath79/Kconfig"
1015source "arch/mips/bcm47xx/Kconfig"
1016source "arch/mips/bcm63xx/Kconfig"
1017source "arch/mips/bmips/Kconfig"
1018source "arch/mips/generic/Kconfig"
1019source "arch/mips/jazz/Kconfig"
1020source "arch/mips/jz4740/Kconfig"
1021source "arch/mips/lantiq/Kconfig"
1022source "arch/mips/lasat/Kconfig"
1023source "arch/mips/pic32/Kconfig"
1024source "arch/mips/pistachio/Kconfig"
1025source "arch/mips/pmcs-msp71xx/Kconfig"
1026source "arch/mips/ralink/Kconfig"
1027source "arch/mips/sgi-ip27/Kconfig"
1028source "arch/mips/sibyte/Kconfig"
1029source "arch/mips/txx9/Kconfig"
1030source "arch/mips/vr41xx/Kconfig"
1031source "arch/mips/cavium-octeon/Kconfig"
1032source "arch/mips/loongson32/Kconfig"
1033source "arch/mips/loongson64/Kconfig"
1034source "arch/mips/netlogic/Kconfig"
1035source "arch/mips/paravirt/Kconfig"
1036
1037endmenu
1038
1039config RWSEM_GENERIC_SPINLOCK
1040	bool
1041	default y
1042
1043config RWSEM_XCHGADD_ALGORITHM
1044	bool
1045
1046config GENERIC_HWEIGHT
1047	bool
1048	default y
1049
1050config GENERIC_CALIBRATE_DELAY
1051	bool
1052	default y
1053
1054config SCHED_OMIT_FRAME_POINTER
1055	bool
1056	default y
1057
1058#
1059# Select some configuration options automatically based on user selections.
1060#
1061config FW_ARC
1062	bool
1063
1064config ARCH_MAY_HAVE_PC_FDC
1065	bool
1066
1067config BOOT_RAW
1068	bool
1069
1070config CEVT_BCM1480
1071	bool
1072
1073config CEVT_DS1287
1074	bool
1075
1076config CEVT_GT641XX
1077	bool
1078
1079config CEVT_R4K
1080	bool
1081
1082config CEVT_SB1250
1083	bool
1084
1085config CEVT_TXX9
1086	bool
1087
1088config CSRC_BCM1480
1089	bool
1090
1091config CSRC_IOASIC
1092	bool
1093
1094config CSRC_R4K
1095	bool
1096
1097config CSRC_SB1250
1098	bool
1099
1100config MIPS_CLOCK_VSYSCALL
1101	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1102
1103config GPIO_TXX9
1104	select GPIOLIB
1105	bool
1106
1107config FW_CFE
1108	bool
1109
1110config ARCH_SUPPORTS_UPROBES
1111	bool
1112
1113config DMA_MAYBE_COHERENT
1114	select ARCH_HAS_DMA_COHERENCE_H
1115	select DMA_NONCOHERENT
1116	bool
1117
1118config DMA_PERDEV_COHERENT
1119	bool
1120	select DMA_NONCOHERENT
1121
1122config DMA_NONCOHERENT
1123	bool
1124	select ARCH_HAS_DMA_MMAP_PGPROT
1125	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1126	select NEED_DMA_MAP_STATE
1127	select ARCH_HAS_DMA_COHERENT_TO_PFN
1128	select DMA_NONCOHERENT_CACHE_SYNC
1129
1130config SYS_HAS_EARLY_PRINTK
1131	bool
1132
1133config SYS_SUPPORTS_HOTPLUG_CPU
1134	bool
1135
1136config MIPS_BONITO64
1137	bool
1138
1139config MIPS_MSC
1140	bool
1141
1142config MIPS_NILE4
1143	bool
1144
1145config SYNC_R4K
1146	bool
1147
1148config MIPS_MACHINE
1149	def_bool n
1150
1151config NO_IOPORT_MAP
1152	def_bool n
1153
1154config GENERIC_CSUM
1155	bool
1156	default y if !CPU_HAS_LOAD_STORE_LR
1157
1158config GENERIC_ISA_DMA
1159	bool
1160	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1161	select ISA_DMA_API
1162
1163config GENERIC_ISA_DMA_SUPPORT_BROKEN
1164	bool
1165	select GENERIC_ISA_DMA
1166
1167config ISA_DMA_API
1168	bool
1169
1170config HOLES_IN_ZONE
1171	bool
1172
1173config SYS_SUPPORTS_RELOCATABLE
1174	bool
1175	help
1176	 Selected if the platform supports relocating the kernel.
1177	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1178	 to allow access to command line and entropy sources.
1179
1180config MIPS_CBPF_JIT
1181	def_bool y
1182	depends on BPF_JIT && HAVE_CBPF_JIT
1183
1184config MIPS_EBPF_JIT
1185	def_bool y
1186	depends on BPF_JIT && HAVE_EBPF_JIT
1187
1188
1189#
1190# Endianness selection.  Sufficiently obscure so many users don't know what to
1191# answer,so we try hard to limit the available choices.  Also the use of a
1192# choice statement should be more obvious to the user.
1193#
1194choice
1195	prompt "Endianness selection"
1196	help
1197	  Some MIPS machines can be configured for either little or big endian
1198	  byte order. These modes require different kernels and a different
1199	  Linux distribution.  In general there is one preferred byteorder for a
1200	  particular system but some systems are just as commonly used in the
1201	  one or the other endianness.
1202
1203config CPU_BIG_ENDIAN
1204	bool "Big endian"
1205	depends on SYS_SUPPORTS_BIG_ENDIAN
1206
1207config CPU_LITTLE_ENDIAN
1208	bool "Little endian"
1209	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1210
1211endchoice
1212
1213config EXPORT_UASM
1214	bool
1215
1216config SYS_SUPPORTS_APM_EMULATION
1217	bool
1218
1219config SYS_SUPPORTS_BIG_ENDIAN
1220	bool
1221
1222config SYS_SUPPORTS_LITTLE_ENDIAN
1223	bool
1224
1225config SYS_SUPPORTS_HUGETLBFS
1226	bool
1227	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1228	default y
1229
1230config MIPS_HUGE_TLB_SUPPORT
1231	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1232
1233config IRQ_CPU_RM7K
1234	bool
1235
1236config IRQ_MSP_SLP
1237	bool
1238
1239config IRQ_MSP_CIC
1240	bool
1241
1242config IRQ_TXX9
1243	bool
1244
1245config IRQ_GT641XX
1246	bool
1247
1248config PCI_GT64XXX_PCI0
1249	bool
1250
1251config NO_EXCEPT_FILL
1252	bool
1253
1254config SOC_EMMA2RH
1255	bool
1256	select CEVT_R4K
1257	select CSRC_R4K
1258	select DMA_NONCOHERENT
1259	select IRQ_MIPS_CPU
1260	select SWAP_IO_SPACE
1261	select SYS_HAS_CPU_R5500
1262	select SYS_SUPPORTS_32BIT_KERNEL
1263	select SYS_SUPPORTS_64BIT_KERNEL
1264	select SYS_SUPPORTS_BIG_ENDIAN
1265
1266config SOC_PNX833X
1267	bool
1268	select CEVT_R4K
1269	select CSRC_R4K
1270	select IRQ_MIPS_CPU
1271	select DMA_NONCOHERENT
1272	select SYS_HAS_CPU_MIPS32_R2
1273	select SYS_SUPPORTS_32BIT_KERNEL
1274	select SYS_SUPPORTS_LITTLE_ENDIAN
1275	select SYS_SUPPORTS_BIG_ENDIAN
1276	select SYS_SUPPORTS_MIPS16
1277	select CPU_MIPSR2_IRQ_VI
1278
1279config SOC_PNX8335
1280	bool
1281	select SOC_PNX833X
1282
1283config MIPS_SPRAM
1284	bool
1285
1286config SWAP_IO_SPACE
1287	bool
1288
1289config SGI_HAS_INDYDOG
1290	bool
1291
1292config SGI_HAS_HAL2
1293	bool
1294
1295config SGI_HAS_SEEQ
1296	bool
1297
1298config SGI_HAS_WD93
1299	bool
1300
1301config SGI_HAS_ZILOG
1302	bool
1303
1304config SGI_HAS_I8042
1305	bool
1306
1307config DEFAULT_SGI_PARTITION
1308	bool
1309
1310config FW_ARC32
1311	bool
1312
1313config FW_SNIPROM
1314	bool
1315
1316config BOOT_ELF32
1317	bool
1318
1319config MIPS_L1_CACHE_SHIFT_4
1320	bool
1321
1322config MIPS_L1_CACHE_SHIFT_5
1323	bool
1324
1325config MIPS_L1_CACHE_SHIFT_6
1326	bool
1327
1328config MIPS_L1_CACHE_SHIFT_7
1329	bool
1330
1331config MIPS_L1_CACHE_SHIFT
1332	int
1333	default "7" if MIPS_L1_CACHE_SHIFT_7
1334	default "6" if MIPS_L1_CACHE_SHIFT_6
1335	default "5" if MIPS_L1_CACHE_SHIFT_5
1336	default "4" if MIPS_L1_CACHE_SHIFT_4
1337	default "5"
1338
1339config HAVE_STD_PC_SERIAL_PORT
1340	bool
1341
1342config ARC_CONSOLE
1343	bool "ARC console support"
1344	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1345
1346config ARC_MEMORY
1347	bool
1348	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1349	default y
1350
1351config ARC_PROMLIB
1352	bool
1353	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1354	default y
1355
1356config FW_ARC64
1357	bool
1358
1359config BOOT_ELF64
1360	bool
1361
1362menu "CPU selection"
1363
1364choice
1365	prompt "CPU type"
1366	default CPU_R4X00
1367
1368config CPU_LOONGSON3
1369	bool "Loongson 3 CPU"
1370	depends on SYS_HAS_CPU_LOONGSON3
1371	select ARCH_HAS_PHYS_TO_DMA
1372	select CPU_SUPPORTS_64BIT_KERNEL
1373	select CPU_SUPPORTS_HIGHMEM
1374	select CPU_SUPPORTS_HUGEPAGES
1375	select CPU_HAS_LOAD_STORE_LR
1376	select WEAK_ORDERING
1377	select WEAK_REORDERING_BEYOND_LLSC
1378	select MIPS_PGD_C0_CONTEXT
1379	select MIPS_L1_CACHE_SHIFT_6
1380	select GPIOLIB
1381	select SWIOTLB
1382	help
1383		The Loongson 3 processor implements the MIPS64R2 instruction
1384		set with many extensions.
1385
1386config LOONGSON3_ENHANCEMENT
1387	bool "New Loongson 3 CPU Enhancements"
1388	default n
1389	select CPU_MIPSR2
1390	select CPU_HAS_PREFETCH
1391	depends on CPU_LOONGSON3
1392	help
1393	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1394	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1395	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1396	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1397	  Fast TLB refill support, etc.
1398
1399	  This option enable those enhancements which are not probed at run
1400	  time. If you want a generic kernel to run on all Loongson 3 machines,
1401	  please say 'N' here. If you want a high-performance kernel to run on
1402	  new Loongson 3 machines only, please say 'Y' here.
1403
1404config CPU_LOONGSON2E
1405	bool "Loongson 2E"
1406	depends on SYS_HAS_CPU_LOONGSON2E
1407	select CPU_LOONGSON2
1408	help
1409	  The Loongson 2E processor implements the MIPS III instruction set
1410	  with many extensions.
1411
1412	  It has an internal FPGA northbridge, which is compatible to
1413	  bonito64.
1414
1415config CPU_LOONGSON2F
1416	bool "Loongson 2F"
1417	depends on SYS_HAS_CPU_LOONGSON2F
1418	select CPU_LOONGSON2
1419	select GPIOLIB
1420	help
1421	  The Loongson 2F processor implements the MIPS III instruction set
1422	  with many extensions.
1423
1424	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1425	  have a similar programming interface with FPGA northbridge used in
1426	  Loongson2E.
1427
1428config CPU_LOONGSON1B
1429	bool "Loongson 1B"
1430	depends on SYS_HAS_CPU_LOONGSON1B
1431	select CPU_LOONGSON1
1432	select LEDS_GPIO_REGISTER
1433	help
1434	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1435	  Release 1 instruction set and part of the MIPS32 Release 2
1436	  instruction set.
1437
1438config CPU_LOONGSON1C
1439	bool "Loongson 1C"
1440	depends on SYS_HAS_CPU_LOONGSON1C
1441	select CPU_LOONGSON1
1442	select LEDS_GPIO_REGISTER
1443	help
1444	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1445	  Release 1 instruction set and part of the MIPS32 Release 2
1446	  instruction set.
1447
1448config CPU_MIPS32_R1
1449	bool "MIPS32 Release 1"
1450	depends on SYS_HAS_CPU_MIPS32_R1
1451	select CPU_HAS_PREFETCH
1452	select CPU_HAS_LOAD_STORE_LR
1453	select CPU_SUPPORTS_32BIT_KERNEL
1454	select CPU_SUPPORTS_HIGHMEM
1455	help
1456	  Choose this option to build a kernel for release 1 or later of the
1457	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1458	  MIPS processor are based on a MIPS32 processor.  If you know the
1459	  specific type of processor in your system, choose those that one
1460	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1461	  Release 2 of the MIPS32 architecture is available since several
1462	  years so chances are you even have a MIPS32 Release 2 processor
1463	  in which case you should choose CPU_MIPS32_R2 instead for better
1464	  performance.
1465
1466config CPU_MIPS32_R2
1467	bool "MIPS32 Release 2"
1468	depends on SYS_HAS_CPU_MIPS32_R2
1469	select CPU_HAS_PREFETCH
1470	select CPU_HAS_LOAD_STORE_LR
1471	select CPU_SUPPORTS_32BIT_KERNEL
1472	select CPU_SUPPORTS_HIGHMEM
1473	select CPU_SUPPORTS_MSA
1474	select HAVE_KVM
1475	help
1476	  Choose this option to build a kernel for release 2 or later of the
1477	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1478	  MIPS processor are based on a MIPS32 processor.  If you know the
1479	  specific type of processor in your system, choose those that one
1480	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1481
1482config CPU_MIPS32_R6
1483	bool "MIPS32 Release 6"
1484	depends on SYS_HAS_CPU_MIPS32_R6
1485	select CPU_HAS_PREFETCH
1486	select CPU_SUPPORTS_32BIT_KERNEL
1487	select CPU_SUPPORTS_HIGHMEM
1488	select CPU_SUPPORTS_MSA
1489	select HAVE_KVM
1490	select MIPS_O32_FP64_SUPPORT
1491	help
1492	  Choose this option to build a kernel for release 6 or later of the
1493	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1494	  family, are based on a MIPS32r6 processor. If you own an older
1495	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1496
1497config CPU_MIPS64_R1
1498	bool "MIPS64 Release 1"
1499	depends on SYS_HAS_CPU_MIPS64_R1
1500	select CPU_HAS_PREFETCH
1501	select CPU_HAS_LOAD_STORE_LR
1502	select CPU_SUPPORTS_32BIT_KERNEL
1503	select CPU_SUPPORTS_64BIT_KERNEL
1504	select CPU_SUPPORTS_HIGHMEM
1505	select CPU_SUPPORTS_HUGEPAGES
1506	help
1507	  Choose this option to build a kernel for release 1 or later of the
1508	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1509	  MIPS processor are based on a MIPS64 processor.  If you know the
1510	  specific type of processor in your system, choose those that one
1511	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1512	  Release 2 of the MIPS64 architecture is available since several
1513	  years so chances are you even have a MIPS64 Release 2 processor
1514	  in which case you should choose CPU_MIPS64_R2 instead for better
1515	  performance.
1516
1517config CPU_MIPS64_R2
1518	bool "MIPS64 Release 2"
1519	depends on SYS_HAS_CPU_MIPS64_R2
1520	select CPU_HAS_PREFETCH
1521	select CPU_HAS_LOAD_STORE_LR
1522	select CPU_SUPPORTS_32BIT_KERNEL
1523	select CPU_SUPPORTS_64BIT_KERNEL
1524	select CPU_SUPPORTS_HIGHMEM
1525	select CPU_SUPPORTS_HUGEPAGES
1526	select CPU_SUPPORTS_MSA
1527	select HAVE_KVM
1528	help
1529	  Choose this option to build a kernel for release 2 or later of the
1530	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1531	  MIPS processor are based on a MIPS64 processor.  If you know the
1532	  specific type of processor in your system, choose those that one
1533	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1534
1535config CPU_MIPS64_R6
1536	bool "MIPS64 Release 6"
1537	depends on SYS_HAS_CPU_MIPS64_R6
1538	select CPU_HAS_PREFETCH
1539	select CPU_SUPPORTS_32BIT_KERNEL
1540	select CPU_SUPPORTS_64BIT_KERNEL
1541	select CPU_SUPPORTS_HIGHMEM
1542	select CPU_SUPPORTS_HUGEPAGES
1543	select CPU_SUPPORTS_MSA
1544	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1545	select HAVE_KVM
1546	help
1547	  Choose this option to build a kernel for release 6 or later of the
1548	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1549	  family, are based on a MIPS64r6 processor. If you own an older
1550	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1551
1552config CPU_R3000
1553	bool "R3000"
1554	depends on SYS_HAS_CPU_R3000
1555	select CPU_HAS_WB
1556	select CPU_HAS_LOAD_STORE_LR
1557	select CPU_SUPPORTS_32BIT_KERNEL
1558	select CPU_SUPPORTS_HIGHMEM
1559	help
1560	  Please make sure to pick the right CPU type. Linux/MIPS is not
1561	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1562	  *not* work on R4000 machines and vice versa.  However, since most
1563	  of the supported machines have an R4000 (or similar) CPU, R4x00
1564	  might be a safe bet.  If the resulting kernel does not work,
1565	  try to recompile with R3000.
1566
1567config CPU_TX39XX
1568	bool "R39XX"
1569	depends on SYS_HAS_CPU_TX39XX
1570	select CPU_SUPPORTS_32BIT_KERNEL
1571	select CPU_HAS_LOAD_STORE_LR
1572
1573config CPU_VR41XX
1574	bool "R41xx"
1575	depends on SYS_HAS_CPU_VR41XX
1576	select CPU_SUPPORTS_32BIT_KERNEL
1577	select CPU_SUPPORTS_64BIT_KERNEL
1578	select CPU_HAS_LOAD_STORE_LR
1579	help
1580	  The options selects support for the NEC VR4100 series of processors.
1581	  Only choose this option if you have one of these processors as a
1582	  kernel built with this option will not run on any other type of
1583	  processor or vice versa.
1584
1585config CPU_R4300
1586	bool "R4300"
1587	depends on SYS_HAS_CPU_R4300
1588	select CPU_SUPPORTS_32BIT_KERNEL
1589	select CPU_SUPPORTS_64BIT_KERNEL
1590	select CPU_HAS_LOAD_STORE_LR
1591	help
1592	  MIPS Technologies R4300-series processors.
1593
1594config CPU_R4X00
1595	bool "R4x00"
1596	depends on SYS_HAS_CPU_R4X00
1597	select CPU_SUPPORTS_32BIT_KERNEL
1598	select CPU_SUPPORTS_64BIT_KERNEL
1599	select CPU_SUPPORTS_HUGEPAGES
1600	select CPU_HAS_LOAD_STORE_LR
1601	help
1602	  MIPS Technologies R4000-series processors other than 4300, including
1603	  the R4000, R4400, R4600, and 4700.
1604
1605config CPU_TX49XX
1606	bool "R49XX"
1607	depends on SYS_HAS_CPU_TX49XX
1608	select CPU_HAS_PREFETCH
1609	select CPU_HAS_LOAD_STORE_LR
1610	select CPU_SUPPORTS_32BIT_KERNEL
1611	select CPU_SUPPORTS_64BIT_KERNEL
1612	select CPU_SUPPORTS_HUGEPAGES
1613
1614config CPU_R5000
1615	bool "R5000"
1616	depends on SYS_HAS_CPU_R5000
1617	select CPU_SUPPORTS_32BIT_KERNEL
1618	select CPU_SUPPORTS_64BIT_KERNEL
1619	select CPU_SUPPORTS_HUGEPAGES
1620	select CPU_HAS_LOAD_STORE_LR
1621	help
1622	  MIPS Technologies R5000-series processors other than the Nevada.
1623
1624config CPU_R5432
1625	bool "R5432"
1626	depends on SYS_HAS_CPU_R5432
1627	select CPU_SUPPORTS_32BIT_KERNEL
1628	select CPU_SUPPORTS_64BIT_KERNEL
1629	select CPU_SUPPORTS_HUGEPAGES
1630	select CPU_HAS_LOAD_STORE_LR
1631
1632config CPU_R5500
1633	bool "R5500"
1634	depends on SYS_HAS_CPU_R5500
1635	select CPU_SUPPORTS_32BIT_KERNEL
1636	select CPU_SUPPORTS_64BIT_KERNEL
1637	select CPU_SUPPORTS_HUGEPAGES
1638	select CPU_HAS_LOAD_STORE_LR
1639	help
1640	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1641	  instruction set.
1642
1643config CPU_NEVADA
1644	bool "RM52xx"
1645	depends on SYS_HAS_CPU_NEVADA
1646	select CPU_SUPPORTS_32BIT_KERNEL
1647	select CPU_SUPPORTS_64BIT_KERNEL
1648	select CPU_SUPPORTS_HUGEPAGES
1649	select CPU_HAS_LOAD_STORE_LR
1650	help
1651	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1652
1653config CPU_R8000
1654	bool "R8000"
1655	depends on SYS_HAS_CPU_R8000
1656	select CPU_HAS_PREFETCH
1657	select CPU_HAS_LOAD_STORE_LR
1658	select CPU_SUPPORTS_64BIT_KERNEL
1659	help
1660	  MIPS Technologies R8000 processors.  Note these processors are
1661	  uncommon and the support for them is incomplete.
1662
1663config CPU_R10000
1664	bool "R10000"
1665	depends on SYS_HAS_CPU_R10000
1666	select CPU_HAS_PREFETCH
1667	select CPU_HAS_LOAD_STORE_LR
1668	select CPU_SUPPORTS_32BIT_KERNEL
1669	select CPU_SUPPORTS_64BIT_KERNEL
1670	select CPU_SUPPORTS_HIGHMEM
1671	select CPU_SUPPORTS_HUGEPAGES
1672	help
1673	  MIPS Technologies R10000-series processors.
1674
1675config CPU_RM7000
1676	bool "RM7000"
1677	depends on SYS_HAS_CPU_RM7000
1678	select CPU_HAS_PREFETCH
1679	select CPU_HAS_LOAD_STORE_LR
1680	select CPU_SUPPORTS_32BIT_KERNEL
1681	select CPU_SUPPORTS_64BIT_KERNEL
1682	select CPU_SUPPORTS_HIGHMEM
1683	select CPU_SUPPORTS_HUGEPAGES
1684
1685config CPU_SB1
1686	bool "SB1"
1687	depends on SYS_HAS_CPU_SB1
1688	select CPU_HAS_LOAD_STORE_LR
1689	select CPU_SUPPORTS_32BIT_KERNEL
1690	select CPU_SUPPORTS_64BIT_KERNEL
1691	select CPU_SUPPORTS_HIGHMEM
1692	select CPU_SUPPORTS_HUGEPAGES
1693	select WEAK_ORDERING
1694
1695config CPU_CAVIUM_OCTEON
1696	bool "Cavium Octeon processor"
1697	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1698	select CPU_HAS_PREFETCH
1699	select CPU_HAS_LOAD_STORE_LR
1700	select CPU_SUPPORTS_64BIT_KERNEL
1701	select WEAK_ORDERING
1702	select CPU_SUPPORTS_HIGHMEM
1703	select CPU_SUPPORTS_HUGEPAGES
1704	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1705	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1706	select MIPS_L1_CACHE_SHIFT_7
1707	select HAVE_KVM
1708	help
1709	  The Cavium Octeon processor is a highly integrated chip containing
1710	  many ethernet hardware widgets for networking tasks. The processor
1711	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1712	  Full details can be found at http://www.caviumnetworks.com.
1713
1714config CPU_BMIPS
1715	bool "Broadcom BMIPS"
1716	depends on SYS_HAS_CPU_BMIPS
1717	select CPU_MIPS32
1718	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1719	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1720	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1721	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1722	select CPU_SUPPORTS_32BIT_KERNEL
1723	select DMA_NONCOHERENT
1724	select IRQ_MIPS_CPU
1725	select SWAP_IO_SPACE
1726	select WEAK_ORDERING
1727	select CPU_SUPPORTS_HIGHMEM
1728	select CPU_HAS_PREFETCH
1729	select CPU_HAS_LOAD_STORE_LR
1730	select CPU_SUPPORTS_CPUFREQ
1731	select MIPS_EXTERNAL_TIMER
1732	help
1733	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1734
1735config CPU_XLR
1736	bool "Netlogic XLR SoC"
1737	depends on SYS_HAS_CPU_XLR
1738	select CPU_HAS_LOAD_STORE_LR
1739	select CPU_SUPPORTS_32BIT_KERNEL
1740	select CPU_SUPPORTS_64BIT_KERNEL
1741	select CPU_SUPPORTS_HIGHMEM
1742	select CPU_SUPPORTS_HUGEPAGES
1743	select WEAK_ORDERING
1744	select WEAK_REORDERING_BEYOND_LLSC
1745	help
1746	  Netlogic Microsystems XLR/XLS processors.
1747
1748config CPU_XLP
1749	bool "Netlogic XLP SoC"
1750	depends on SYS_HAS_CPU_XLP
1751	select CPU_SUPPORTS_32BIT_KERNEL
1752	select CPU_SUPPORTS_64BIT_KERNEL
1753	select CPU_SUPPORTS_HIGHMEM
1754	select WEAK_ORDERING
1755	select WEAK_REORDERING_BEYOND_LLSC
1756	select CPU_HAS_PREFETCH
1757	select CPU_HAS_LOAD_STORE_LR
1758	select CPU_MIPSR2
1759	select CPU_SUPPORTS_HUGEPAGES
1760	select MIPS_ASID_BITS_VARIABLE
1761	help
1762	  Netlogic Microsystems XLP processors.
1763endchoice
1764
1765config CPU_MIPS32_3_5_FEATURES
1766	bool "MIPS32 Release 3.5 Features"
1767	depends on SYS_HAS_CPU_MIPS32_R3_5
1768	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1769	help
1770	  Choose this option to build a kernel for release 2 or later of the
1771	  MIPS32 architecture including features from the 3.5 release such as
1772	  support for Enhanced Virtual Addressing (EVA).
1773
1774config CPU_MIPS32_3_5_EVA
1775	bool "Enhanced Virtual Addressing (EVA)"
1776	depends on CPU_MIPS32_3_5_FEATURES
1777	select EVA
1778	default y
1779	help
1780	  Choose this option if you want to enable the Enhanced Virtual
1781	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1782	  One of its primary benefits is an increase in the maximum size
1783	  of lowmem (up to 3GB). If unsure, say 'N' here.
1784
1785config CPU_MIPS32_R5_FEATURES
1786	bool "MIPS32 Release 5 Features"
1787	depends on SYS_HAS_CPU_MIPS32_R5
1788	depends on CPU_MIPS32_R2
1789	help
1790	  Choose this option to build a kernel for release 2 or later of the
1791	  MIPS32 architecture including features from release 5 such as
1792	  support for Extended Physical Addressing (XPA).
1793
1794config CPU_MIPS32_R5_XPA
1795	bool "Extended Physical Addressing (XPA)"
1796	depends on CPU_MIPS32_R5_FEATURES
1797	depends on !EVA
1798	depends on !PAGE_SIZE_4KB
1799	depends on SYS_SUPPORTS_HIGHMEM
1800	select XPA
1801	select HIGHMEM
1802	select PHYS_ADDR_T_64BIT
1803	default n
1804	help
1805	  Choose this option if you want to enable the Extended Physical
1806	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1807	  benefit is to increase physical addressing equal to or greater
1808	  than 40 bits. Note that this has the side effect of turning on
1809	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1810	  If unsure, say 'N' here.
1811
1812if CPU_LOONGSON2F
1813config CPU_NOP_WORKAROUNDS
1814	bool
1815
1816config CPU_JUMP_WORKAROUNDS
1817	bool
1818
1819config CPU_LOONGSON2F_WORKAROUNDS
1820	bool "Loongson 2F Workarounds"
1821	default y
1822	select CPU_NOP_WORKAROUNDS
1823	select CPU_JUMP_WORKAROUNDS
1824	help
1825	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1826	  require workarounds.  Without workarounds the system may hang
1827	  unexpectedly.  For more information please refer to the gas
1828	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1829
1830	  Loongson 2F03 and later have fixed these issues and no workarounds
1831	  are needed.  The workarounds have no significant side effect on them
1832	  but may decrease the performance of the system so this option should
1833	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1834	  systems.
1835
1836	  If unsure, please say Y.
1837endif # CPU_LOONGSON2F
1838
1839config SYS_SUPPORTS_ZBOOT
1840	bool
1841	select HAVE_KERNEL_GZIP
1842	select HAVE_KERNEL_BZIP2
1843	select HAVE_KERNEL_LZ4
1844	select HAVE_KERNEL_LZMA
1845	select HAVE_KERNEL_LZO
1846	select HAVE_KERNEL_XZ
1847
1848config SYS_SUPPORTS_ZBOOT_UART16550
1849	bool
1850	select SYS_SUPPORTS_ZBOOT
1851
1852config SYS_SUPPORTS_ZBOOT_UART_PROM
1853	bool
1854	select SYS_SUPPORTS_ZBOOT
1855
1856config CPU_LOONGSON2
1857	bool
1858	select CPU_SUPPORTS_32BIT_KERNEL
1859	select CPU_SUPPORTS_64BIT_KERNEL
1860	select CPU_SUPPORTS_HIGHMEM
1861	select CPU_SUPPORTS_HUGEPAGES
1862	select ARCH_HAS_PHYS_TO_DMA
1863	select CPU_HAS_LOAD_STORE_LR
1864
1865config CPU_LOONGSON1
1866	bool
1867	select CPU_MIPS32
1868	select CPU_MIPSR2
1869	select CPU_HAS_PREFETCH
1870	select CPU_HAS_LOAD_STORE_LR
1871	select CPU_SUPPORTS_32BIT_KERNEL
1872	select CPU_SUPPORTS_HIGHMEM
1873	select CPU_SUPPORTS_CPUFREQ
1874
1875config CPU_BMIPS32_3300
1876	select SMP_UP if SMP
1877	bool
1878
1879config CPU_BMIPS4350
1880	bool
1881	select SYS_SUPPORTS_SMP
1882	select SYS_SUPPORTS_HOTPLUG_CPU
1883
1884config CPU_BMIPS4380
1885	bool
1886	select MIPS_L1_CACHE_SHIFT_6
1887	select SYS_SUPPORTS_SMP
1888	select SYS_SUPPORTS_HOTPLUG_CPU
1889	select CPU_HAS_RIXI
1890
1891config CPU_BMIPS5000
1892	bool
1893	select MIPS_CPU_SCACHE
1894	select MIPS_L1_CACHE_SHIFT_7
1895	select SYS_SUPPORTS_SMP
1896	select SYS_SUPPORTS_HOTPLUG_CPU
1897	select CPU_HAS_RIXI
1898
1899config SYS_HAS_CPU_LOONGSON3
1900	bool
1901	select CPU_SUPPORTS_CPUFREQ
1902	select CPU_HAS_RIXI
1903
1904config SYS_HAS_CPU_LOONGSON2E
1905	bool
1906
1907config SYS_HAS_CPU_LOONGSON2F
1908	bool
1909	select CPU_SUPPORTS_CPUFREQ
1910	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1911	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1912
1913config SYS_HAS_CPU_LOONGSON1B
1914	bool
1915
1916config SYS_HAS_CPU_LOONGSON1C
1917	bool
1918
1919config SYS_HAS_CPU_MIPS32_R1
1920	bool
1921
1922config SYS_HAS_CPU_MIPS32_R2
1923	bool
1924
1925config SYS_HAS_CPU_MIPS32_R3_5
1926	bool
1927
1928config SYS_HAS_CPU_MIPS32_R5
1929	bool
1930	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1931
1932config SYS_HAS_CPU_MIPS32_R6
1933	bool
1934	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1935
1936config SYS_HAS_CPU_MIPS64_R1
1937	bool
1938
1939config SYS_HAS_CPU_MIPS64_R2
1940	bool
1941
1942config SYS_HAS_CPU_MIPS64_R6
1943	bool
1944	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1945
1946config SYS_HAS_CPU_R3000
1947	bool
1948
1949config SYS_HAS_CPU_TX39XX
1950	bool
1951
1952config SYS_HAS_CPU_VR41XX
1953	bool
1954
1955config SYS_HAS_CPU_R4300
1956	bool
1957
1958config SYS_HAS_CPU_R4X00
1959	bool
1960
1961config SYS_HAS_CPU_TX49XX
1962	bool
1963
1964config SYS_HAS_CPU_R5000
1965	bool
1966
1967config SYS_HAS_CPU_R5432
1968	bool
1969
1970config SYS_HAS_CPU_R5500
1971	bool
1972
1973config SYS_HAS_CPU_NEVADA
1974	bool
1975
1976config SYS_HAS_CPU_R8000
1977	bool
1978
1979config SYS_HAS_CPU_R10000
1980	bool
1981	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1982
1983config SYS_HAS_CPU_RM7000
1984	bool
1985
1986config SYS_HAS_CPU_SB1
1987	bool
1988
1989config SYS_HAS_CPU_CAVIUM_OCTEON
1990	bool
1991
1992config SYS_HAS_CPU_BMIPS
1993	bool
1994
1995config SYS_HAS_CPU_BMIPS32_3300
1996	bool
1997	select SYS_HAS_CPU_BMIPS
1998
1999config SYS_HAS_CPU_BMIPS4350
2000	bool
2001	select SYS_HAS_CPU_BMIPS
2002
2003config SYS_HAS_CPU_BMIPS4380
2004	bool
2005	select SYS_HAS_CPU_BMIPS
2006
2007config SYS_HAS_CPU_BMIPS5000
2008	bool
2009	select SYS_HAS_CPU_BMIPS
2010	select ARCH_HAS_SYNC_DMA_FOR_CPU
2011
2012config SYS_HAS_CPU_XLR
2013	bool
2014
2015config SYS_HAS_CPU_XLP
2016	bool
2017
2018#
2019# CPU may reorder R->R, R->W, W->R, W->W
2020# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2021#
2022config WEAK_ORDERING
2023	bool
2024
2025#
2026# CPU may reorder reads and writes beyond LL/SC
2027# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2028#
2029config WEAK_REORDERING_BEYOND_LLSC
2030	bool
2031endmenu
2032
2033#
2034# These two indicate any level of the MIPS32 and MIPS64 architecture
2035#
2036config CPU_MIPS32
2037	bool
2038	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2039
2040config CPU_MIPS64
2041	bool
2042	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2043
2044#
2045# These indicate the revision of the architecture
2046#
2047config CPU_MIPSR1
2048	bool
2049	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2050
2051config CPU_MIPSR2
2052	bool
2053	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2054	select CPU_HAS_RIXI
2055	select MIPS_SPRAM
2056
2057config CPU_MIPSR6
2058	bool
2059	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2060	select CPU_HAS_RIXI
2061	select HAVE_ARCH_BITREVERSE
2062	select MIPS_ASID_BITS_VARIABLE
2063	select MIPS_CRC_SUPPORT
2064	select MIPS_SPRAM
2065
2066config TARGET_ISA_REV
2067	int
2068	default 1 if CPU_MIPSR1
2069	default 2 if CPU_MIPSR2
2070	default 6 if CPU_MIPSR6
2071	default 0
2072	help
2073	  Reflects the ISA revision being targeted by the kernel build. This
2074	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2075
2076config EVA
2077	bool
2078
2079config XPA
2080	bool
2081
2082config SYS_SUPPORTS_32BIT_KERNEL
2083	bool
2084config SYS_SUPPORTS_64BIT_KERNEL
2085	bool
2086config CPU_SUPPORTS_32BIT_KERNEL
2087	bool
2088config CPU_SUPPORTS_64BIT_KERNEL
2089	bool
2090config CPU_SUPPORTS_CPUFREQ
2091	bool
2092config CPU_SUPPORTS_ADDRWINCFG
2093	bool
2094config CPU_SUPPORTS_HUGEPAGES
2095	bool
2096config CPU_SUPPORTS_UNCACHED_ACCELERATED
2097	bool
2098config MIPS_PGD_C0_CONTEXT
2099	bool
2100	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2101
2102#
2103# Set to y for ptrace access to watch registers.
2104#
2105config HARDWARE_WATCHPOINTS
2106       bool
2107       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2108
2109menu "Kernel type"
2110
2111choice
2112	prompt "Kernel code model"
2113	help
2114	  You should only select this option if you have a workload that
2115	  actually benefits from 64-bit processing or if your machine has
2116	  large memory.  You will only be presented a single option in this
2117	  menu if your system does not support both 32-bit and 64-bit kernels.
2118
2119config 32BIT
2120	bool "32-bit kernel"
2121	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2122	select TRAD_SIGNALS
2123	help
2124	  Select this option if you want to build a 32-bit kernel.
2125
2126config 64BIT
2127	bool "64-bit kernel"
2128	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2129	help
2130	  Select this option if you want to build a 64-bit kernel.
2131
2132endchoice
2133
2134config KVM_GUEST
2135	bool "KVM Guest Kernel"
2136	depends on BROKEN_ON_SMP
2137	help
2138	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2139	  mode.
2140
2141config KVM_GUEST_TIMER_FREQ
2142	int "Count/Compare Timer Frequency (MHz)"
2143	depends on KVM_GUEST
2144	default 100
2145	help
2146	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2147	  emulation when determining guest CPU Frequency. Instead, the guest's
2148	  timer frequency is specified directly.
2149
2150config MIPS_VA_BITS_48
2151	bool "48 bits virtual memory"
2152	depends on 64BIT
2153	help
2154	  Support a maximum at least 48 bits of application virtual
2155	  memory.  Default is 40 bits or less, depending on the CPU.
2156	  For page sizes 16k and above, this option results in a small
2157	  memory overhead for page tables.  For 4k page size, a fourth
2158	  level of page tables is added which imposes both a memory
2159	  overhead as well as slower TLB fault handling.
2160
2161	  If unsure, say N.
2162
2163choice
2164	prompt "Kernel page size"
2165	default PAGE_SIZE_4KB
2166
2167config PAGE_SIZE_4KB
2168	bool "4kB"
2169	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2170	help
2171	 This option select the standard 4kB Linux page size.  On some
2172	 R3000-family processors this is the only available page size.  Using
2173	 4kB page size will minimize memory consumption and is therefore
2174	 recommended for low memory systems.
2175
2176config PAGE_SIZE_8KB
2177	bool "8kB"
2178	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2179	depends on !MIPS_VA_BITS_48
2180	help
2181	  Using 8kB page size will result in higher performance kernel at
2182	  the price of higher memory consumption.  This option is available
2183	  only on R8000 and cnMIPS processors.  Note that you will need a
2184	  suitable Linux distribution to support this.
2185
2186config PAGE_SIZE_16KB
2187	bool "16kB"
2188	depends on !CPU_R3000 && !CPU_TX39XX
2189	help
2190	  Using 16kB page size will result in higher performance kernel at
2191	  the price of higher memory consumption.  This option is available on
2192	  all non-R3000 family processors.  Note that you will need a suitable
2193	  Linux distribution to support this.
2194
2195config PAGE_SIZE_32KB
2196	bool "32kB"
2197	depends on CPU_CAVIUM_OCTEON
2198	depends on !MIPS_VA_BITS_48
2199	help
2200	  Using 32kB page size will result in higher performance kernel at
2201	  the price of higher memory consumption.  This option is available
2202	  only on cnMIPS cores.  Note that you will need a suitable Linux
2203	  distribution to support this.
2204
2205config PAGE_SIZE_64KB
2206	bool "64kB"
2207	depends on !CPU_R3000 && !CPU_TX39XX
2208	help
2209	  Using 64kB page size will result in higher performance kernel at
2210	  the price of higher memory consumption.  This option is available on
2211	  all non-R3000 family processor.  Not that at the time of this
2212	  writing this option is still high experimental.
2213
2214endchoice
2215
2216config FORCE_MAX_ZONEORDER
2217	int "Maximum zone order"
2218	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2219	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2220	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2221	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2222	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2223	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2224	range 11 64
2225	default "11"
2226	help
2227	  The kernel memory allocator divides physically contiguous memory
2228	  blocks into "zones", where each zone is a power of two number of
2229	  pages.  This option selects the largest power of two that the kernel
2230	  keeps in the memory allocator.  If you need to allocate very large
2231	  blocks of physically contiguous memory, then you may need to
2232	  increase this value.
2233
2234	  This config option is actually maximum order plus one. For example,
2235	  a value of 11 means that the largest free memory block is 2^10 pages.
2236
2237	  The page size is not necessarily 4KB.  Keep this in mind
2238	  when choosing a value for this option.
2239
2240config BOARD_SCACHE
2241	bool
2242
2243config IP22_CPU_SCACHE
2244	bool
2245	select BOARD_SCACHE
2246
2247#
2248# Support for a MIPS32 / MIPS64 style S-caches
2249#
2250config MIPS_CPU_SCACHE
2251	bool
2252	select BOARD_SCACHE
2253
2254config R5000_CPU_SCACHE
2255	bool
2256	select BOARD_SCACHE
2257
2258config RM7000_CPU_SCACHE
2259	bool
2260	select BOARD_SCACHE
2261
2262config SIBYTE_DMA_PAGEOPS
2263	bool "Use DMA to clear/copy pages"
2264	depends on CPU_SB1
2265	help
2266	  Instead of using the CPU to zero and copy pages, use a Data Mover
2267	  channel.  These DMA channels are otherwise unused by the standard
2268	  SiByte Linux port.  Seems to give a small performance benefit.
2269
2270config CPU_HAS_PREFETCH
2271	bool
2272
2273config CPU_GENERIC_DUMP_TLB
2274	bool
2275	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2276
2277config MIPS_FP_SUPPORT
2278	bool "Floating Point support" if EXPERT
2279	default y
2280	help
2281	  Select y to include support for floating point in the kernel
2282	  including initialization of FPU hardware, FP context save & restore
2283	  and emulation of an FPU where necessary. Without this support any
2284	  userland program attempting to use floating point instructions will
2285	  receive a SIGILL.
2286
2287	  If you know that your userland will not attempt to use floating point
2288	  instructions then you can say n here to shrink the kernel a little.
2289
2290	  If unsure, say y.
2291
2292config CPU_R2300_FPU
2293	bool
2294	depends on MIPS_FP_SUPPORT
2295	default y if CPU_R3000 || CPU_TX39XX
2296
2297config CPU_R4K_FPU
2298	bool
2299	depends on MIPS_FP_SUPPORT
2300	default y if !CPU_R2300_FPU
2301
2302config CPU_R4K_CACHE_TLB
2303	bool
2304	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2305
2306config MIPS_MT_SMP
2307	bool "MIPS MT SMP support (1 TC on each available VPE)"
2308	default y
2309	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2310	select CPU_MIPSR2_IRQ_VI
2311	select CPU_MIPSR2_IRQ_EI
2312	select SYNC_R4K
2313	select MIPS_MT
2314	select SMP
2315	select SMP_UP
2316	select SYS_SUPPORTS_SMP
2317	select SYS_SUPPORTS_SCHED_SMT
2318	select MIPS_PERF_SHARED_TC_COUNTERS
2319	help
2320	  This is a kernel model which is known as SMVP. This is supported
2321	  on cores with the MT ASE and uses the available VPEs to implement
2322	  virtual processors which supports SMP. This is equivalent to the
2323	  Intel Hyperthreading feature. For further information go to
2324	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2325
2326config MIPS_MT
2327	bool
2328
2329config SCHED_SMT
2330	bool "SMT (multithreading) scheduler support"
2331	depends on SYS_SUPPORTS_SCHED_SMT
2332	default n
2333	help
2334	  SMT scheduler support improves the CPU scheduler's decision making
2335	  when dealing with MIPS MT enabled cores at a cost of slightly
2336	  increased overhead in some places. If unsure say N here.
2337
2338config SYS_SUPPORTS_SCHED_SMT
2339	bool
2340
2341config SYS_SUPPORTS_MULTITHREADING
2342	bool
2343
2344config MIPS_MT_FPAFF
2345	bool "Dynamic FPU affinity for FP-intensive threads"
2346	default y
2347	depends on MIPS_MT_SMP
2348
2349config MIPSR2_TO_R6_EMULATOR
2350	bool "MIPS R2-to-R6 emulator"
2351	depends on CPU_MIPSR6
2352	depends on MIPS_FP_SUPPORT
2353	default y
2354	help
2355	  Choose this option if you want to run non-R6 MIPS userland code.
2356	  Even if you say 'Y' here, the emulator will still be disabled by
2357	  default. You can enable it using the 'mipsr2emu' kernel option.
2358	  The only reason this is a build-time option is to save ~14K from the
2359	  final kernel image.
2360
2361config SYS_SUPPORTS_VPE_LOADER
2362	bool
2363	depends on SYS_SUPPORTS_MULTITHREADING
2364	help
2365	  Indicates that the platform supports the VPE loader, and provides
2366	  physical_memsize.
2367
2368config MIPS_VPE_LOADER
2369	bool "VPE loader support."
2370	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2371	select CPU_MIPSR2_IRQ_VI
2372	select CPU_MIPSR2_IRQ_EI
2373	select MIPS_MT
2374	help
2375	  Includes a loader for loading an elf relocatable object
2376	  onto another VPE and running it.
2377
2378config MIPS_VPE_LOADER_CMP
2379	bool
2380	default "y"
2381	depends on MIPS_VPE_LOADER && MIPS_CMP
2382
2383config MIPS_VPE_LOADER_MT
2384	bool
2385	default "y"
2386	depends on MIPS_VPE_LOADER && !MIPS_CMP
2387
2388config MIPS_VPE_LOADER_TOM
2389	bool "Load VPE program into memory hidden from linux"
2390	depends on MIPS_VPE_LOADER
2391	default y
2392	help
2393	  The loader can use memory that is present but has been hidden from
2394	  Linux using the kernel command line option "mem=xxMB". It's up to
2395	  you to ensure the amount you put in the option and the space your
2396	  program requires is less or equal to the amount physically present.
2397
2398config MIPS_VPE_APSP_API
2399	bool "Enable support for AP/SP API (RTLX)"
2400	depends on MIPS_VPE_LOADER
2401
2402config MIPS_VPE_APSP_API_CMP
2403	bool
2404	default "y"
2405	depends on MIPS_VPE_APSP_API && MIPS_CMP
2406
2407config MIPS_VPE_APSP_API_MT
2408	bool
2409	default "y"
2410	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2411
2412config MIPS_CMP
2413	bool "MIPS CMP framework support (DEPRECATED)"
2414	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2415	select SMP
2416	select SYNC_R4K
2417	select SYS_SUPPORTS_SMP
2418	select WEAK_ORDERING
2419	default n
2420	help
2421	  Select this if you are using a bootloader which implements the "CMP
2422	  framework" protocol (ie. YAMON) and want your kernel to make use of
2423	  its ability to start secondary CPUs.
2424
2425	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2426	  instead of this.
2427
2428config MIPS_CPS
2429	bool "MIPS Coherent Processing System support"
2430	depends on SYS_SUPPORTS_MIPS_CPS
2431	select MIPS_CM
2432	select MIPS_CPS_PM if HOTPLUG_CPU
2433	select SMP
2434	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2435	select SYS_SUPPORTS_HOTPLUG_CPU
2436	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2437	select SYS_SUPPORTS_SMP
2438	select WEAK_ORDERING
2439	help
2440	  Select this if you wish to run an SMP kernel across multiple cores
2441	  within a MIPS Coherent Processing System. When this option is
2442	  enabled the kernel will probe for other cores and boot them with
2443	  no external assistance. It is safe to enable this when hardware
2444	  support is unavailable.
2445
2446config MIPS_CPS_PM
2447	depends on MIPS_CPS
2448	bool
2449
2450config MIPS_CM
2451	bool
2452	select MIPS_CPC
2453
2454config MIPS_CPC
2455	bool
2456
2457config SB1_PASS_2_WORKAROUNDS
2458	bool
2459	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2460	default y
2461
2462config SB1_PASS_2_1_WORKAROUNDS
2463	bool
2464	depends on CPU_SB1 && CPU_SB1_PASS_2
2465	default y
2466
2467
2468choice
2469	prompt "SmartMIPS or microMIPS ASE support"
2470
2471config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2472	bool "None"
2473	help
2474	  Select this if you want neither microMIPS nor SmartMIPS support
2475
2476config CPU_HAS_SMARTMIPS
2477	depends on SYS_SUPPORTS_SMARTMIPS
2478	bool "SmartMIPS"
2479	help
2480	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2481	  increased security at both hardware and software level for
2482	  smartcards.  Enabling this option will allow proper use of the
2483	  SmartMIPS instructions by Linux applications.  However a kernel with
2484	  this option will not work on a MIPS core without SmartMIPS core.  If
2485	  you don't know you probably don't have SmartMIPS and should say N
2486	  here.
2487
2488config CPU_MICROMIPS
2489	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2490	bool "microMIPS"
2491	help
2492	  When this option is enabled the kernel will be built using the
2493	  microMIPS ISA
2494
2495endchoice
2496
2497config CPU_HAS_MSA
2498	bool "Support for the MIPS SIMD Architecture"
2499	depends on CPU_SUPPORTS_MSA
2500	depends on MIPS_FP_SUPPORT
2501	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2502	help
2503	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2504	  and a set of SIMD instructions to operate on them. When this option
2505	  is enabled the kernel will support allocating & switching MSA
2506	  vector register contexts. If you know that your kernel will only be
2507	  running on CPUs which do not support MSA or that your userland will
2508	  not be making use of it then you may wish to say N here to reduce
2509	  the size & complexity of your kernel.
2510
2511	  If unsure, say Y.
2512
2513config CPU_HAS_WB
2514	bool
2515
2516config XKS01
2517	bool
2518
2519config CPU_HAS_RIXI
2520	bool
2521
2522config CPU_HAS_LOAD_STORE_LR
2523	bool
2524	help
2525	  CPU has support for unaligned load and store instructions:
2526	  LWL, LWR, SWL, SWR (Load/store word left/right).
2527	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2528
2529#
2530# Vectored interrupt mode is an R2 feature
2531#
2532config CPU_MIPSR2_IRQ_VI
2533	bool
2534
2535#
2536# Extended interrupt mode is an R2 feature
2537#
2538config CPU_MIPSR2_IRQ_EI
2539	bool
2540
2541config CPU_HAS_SYNC
2542	bool
2543	depends on !CPU_R3000
2544	default y
2545
2546#
2547# CPU non-features
2548#
2549config CPU_DADDI_WORKAROUNDS
2550	bool
2551
2552config CPU_R4000_WORKAROUNDS
2553	bool
2554	select CPU_R4400_WORKAROUNDS
2555
2556config CPU_R4400_WORKAROUNDS
2557	bool
2558
2559config MIPS_ASID_SHIFT
2560	int
2561	default 6 if CPU_R3000 || CPU_TX39XX
2562	default 4 if CPU_R8000
2563	default 0
2564
2565config MIPS_ASID_BITS
2566	int
2567	default 0 if MIPS_ASID_BITS_VARIABLE
2568	default 6 if CPU_R3000 || CPU_TX39XX
2569	default 8
2570
2571config MIPS_ASID_BITS_VARIABLE
2572	bool
2573
2574config MIPS_CRC_SUPPORT
2575	bool
2576
2577#
2578# - Highmem only makes sense for the 32-bit kernel.
2579# - The current highmem code will only work properly on physically indexed
2580#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2581#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2582#   moment we protect the user and offer the highmem option only on machines
2583#   where it's known to be safe.  This will not offer highmem on a few systems
2584#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2585#   indexed CPUs but we're playing safe.
2586# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2587#   know they might have memory configurations that could make use of highmem
2588#   support.
2589#
2590config HIGHMEM
2591	bool "High Memory Support"
2592	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2593
2594config CPU_SUPPORTS_HIGHMEM
2595	bool
2596
2597config SYS_SUPPORTS_HIGHMEM
2598	bool
2599
2600config SYS_SUPPORTS_SMARTMIPS
2601	bool
2602
2603config SYS_SUPPORTS_MICROMIPS
2604	bool
2605
2606config SYS_SUPPORTS_MIPS16
2607	bool
2608	help
2609	  This option must be set if a kernel might be executed on a MIPS16-
2610	  enabled CPU even if MIPS16 is not actually being used.  In other
2611	  words, it makes the kernel MIPS16-tolerant.
2612
2613config CPU_SUPPORTS_MSA
2614	bool
2615
2616config ARCH_FLATMEM_ENABLE
2617	def_bool y
2618	depends on !NUMA && !CPU_LOONGSON2
2619
2620config ARCH_DISCONTIGMEM_ENABLE
2621	bool
2622	default y if SGI_IP27
2623	help
2624	  Say Y to support efficient handling of discontiguous physical memory,
2625	  for architectures which are either NUMA (Non-Uniform Memory Access)
2626	  or have huge holes in the physical address space for other reasons.
2627	  See <file:Documentation/vm/numa.rst> for more.
2628
2629config ARCH_SPARSEMEM_ENABLE
2630	bool
2631	select SPARSEMEM_STATIC
2632
2633config NUMA
2634	bool "NUMA Support"
2635	depends on SYS_SUPPORTS_NUMA
2636	help
2637	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2638	  Access).  This option improves performance on systems with more
2639	  than two nodes; on two node systems it is generally better to
2640	  leave it disabled; on single node systems disable this option
2641	  disabled.
2642
2643config SYS_SUPPORTS_NUMA
2644	bool
2645
2646config RELOCATABLE
2647	bool "Relocatable kernel"
2648	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2649	help
2650	  This builds a kernel image that retains relocation information
2651	  so it can be loaded someplace besides the default 1MB.
2652	  The relocations make the kernel binary about 15% larger,
2653	  but are discarded at runtime
2654
2655config RELOCATION_TABLE_SIZE
2656	hex "Relocation table size"
2657	depends on RELOCATABLE
2658	range 0x0 0x01000000
2659	default "0x00100000"
2660	---help---
2661	  A table of relocation data will be appended to the kernel binary
2662	  and parsed at boot to fix up the relocated kernel.
2663
2664	  This option allows the amount of space reserved for the table to be
2665	  adjusted, although the default of 1Mb should be ok in most cases.
2666
2667	  The build will fail and a valid size suggested if this is too small.
2668
2669	  If unsure, leave at the default value.
2670
2671config RANDOMIZE_BASE
2672	bool "Randomize the address of the kernel image"
2673	depends on RELOCATABLE
2674	---help---
2675	   Randomizes the physical and virtual address at which the
2676	   kernel image is loaded, as a security feature that
2677	   deters exploit attempts relying on knowledge of the location
2678	   of kernel internals.
2679
2680	   Entropy is generated using any coprocessor 0 registers available.
2681
2682	   The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2683
2684	   If unsure, say N.
2685
2686config RANDOMIZE_BASE_MAX_OFFSET
2687	hex "Maximum kASLR offset" if EXPERT
2688	depends on RANDOMIZE_BASE
2689	range 0x0 0x40000000 if EVA || 64BIT
2690	range 0x0 0x08000000
2691	default "0x01000000"
2692	---help---
2693	  When kASLR is active, this provides the maximum offset that will
2694	  be applied to the kernel image. It should be set according to the
2695	  amount of physical RAM available in the target system minus
2696	  PHYSICAL_START and must be a power of 2.
2697
2698	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2699	  EVA or 64-bit. The default is 16Mb.
2700
2701config NODES_SHIFT
2702	int
2703	default "6"
2704	depends on NEED_MULTIPLE_NODES
2705
2706config HW_PERF_EVENTS
2707	bool "Enable hardware performance counter support for perf events"
2708	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2709	default y
2710	help
2711	  Enable hardware performance counter support for perf events. If
2712	  disabled, perf events will use software events only.
2713
2714config SMP
2715	bool "Multi-Processing support"
2716	depends on SYS_SUPPORTS_SMP
2717	help
2718	  This enables support for systems with more than one CPU. If you have
2719	  a system with only one CPU, say N. If you have a system with more
2720	  than one CPU, say Y.
2721
2722	  If you say N here, the kernel will run on uni- and multiprocessor
2723	  machines, but will use only one CPU of a multiprocessor machine. If
2724	  you say Y here, the kernel will run on many, but not all,
2725	  uniprocessor machines. On a uniprocessor machine, the kernel
2726	  will run faster if you say N here.
2727
2728	  People using multiprocessor machines who say Y here should also say
2729	  Y to "Enhanced Real Time Clock Support", below.
2730
2731	  See also the SMP-HOWTO available at
2732	  <http://www.tldp.org/docs.html#howto>.
2733
2734	  If you don't know what to do here, say N.
2735
2736config HOTPLUG_CPU
2737	bool "Support for hot-pluggable CPUs"
2738	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2739	help
2740	  Say Y here to allow turning CPUs off and on. CPUs can be
2741	  controlled through /sys/devices/system/cpu.
2742	  (Note: power management support will enable this option
2743	    automatically on SMP systems. )
2744	  Say N if you want to disable CPU hotplug.
2745
2746config SMP_UP
2747	bool
2748
2749config SYS_SUPPORTS_MIPS_CMP
2750	bool
2751
2752config SYS_SUPPORTS_MIPS_CPS
2753	bool
2754
2755config SYS_SUPPORTS_SMP
2756	bool
2757
2758config NR_CPUS_DEFAULT_4
2759	bool
2760
2761config NR_CPUS_DEFAULT_8
2762	bool
2763
2764config NR_CPUS_DEFAULT_16
2765	bool
2766
2767config NR_CPUS_DEFAULT_32
2768	bool
2769
2770config NR_CPUS_DEFAULT_64
2771	bool
2772
2773config NR_CPUS
2774	int "Maximum number of CPUs (2-256)"
2775	range 2 256
2776	depends on SMP
2777	default "4" if NR_CPUS_DEFAULT_4
2778	default "8" if NR_CPUS_DEFAULT_8
2779	default "16" if NR_CPUS_DEFAULT_16
2780	default "32" if NR_CPUS_DEFAULT_32
2781	default "64" if NR_CPUS_DEFAULT_64
2782	help
2783	  This allows you to specify the maximum number of CPUs which this
2784	  kernel will support.  The maximum supported value is 32 for 32-bit
2785	  kernel and 64 for 64-bit kernels; the minimum value which makes
2786	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2787	  and 2 for all others.
2788
2789	  This is purely to save memory - each supported CPU adds
2790	  approximately eight kilobytes to the kernel image.  For best
2791	  performance should round up your number of processors to the next
2792	  power of two.
2793
2794config MIPS_PERF_SHARED_TC_COUNTERS
2795	bool
2796
2797config MIPS_NR_CPU_NR_MAP_1024
2798	bool
2799
2800config MIPS_NR_CPU_NR_MAP
2801	int
2802	depends on SMP
2803	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2804	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2805
2806#
2807# Timer Interrupt Frequency Configuration
2808#
2809
2810choice
2811	prompt "Timer frequency"
2812	default HZ_250
2813	help
2814	 Allows the configuration of the timer frequency.
2815
2816	config HZ_24
2817		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2818
2819	config HZ_48
2820		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2821
2822	config HZ_100
2823		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2824
2825	config HZ_128
2826		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2827
2828	config HZ_250
2829		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2830
2831	config HZ_256
2832		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2833
2834	config HZ_1000
2835		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2836
2837	config HZ_1024
2838		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2839
2840endchoice
2841
2842config SYS_SUPPORTS_24HZ
2843	bool
2844
2845config SYS_SUPPORTS_48HZ
2846	bool
2847
2848config SYS_SUPPORTS_100HZ
2849	bool
2850
2851config SYS_SUPPORTS_128HZ
2852	bool
2853
2854config SYS_SUPPORTS_250HZ
2855	bool
2856
2857config SYS_SUPPORTS_256HZ
2858	bool
2859
2860config SYS_SUPPORTS_1000HZ
2861	bool
2862
2863config SYS_SUPPORTS_1024HZ
2864	bool
2865
2866config SYS_SUPPORTS_ARBIT_HZ
2867	bool
2868	default y if !SYS_SUPPORTS_24HZ && \
2869		     !SYS_SUPPORTS_48HZ && \
2870		     !SYS_SUPPORTS_100HZ && \
2871		     !SYS_SUPPORTS_128HZ && \
2872		     !SYS_SUPPORTS_250HZ && \
2873		     !SYS_SUPPORTS_256HZ && \
2874		     !SYS_SUPPORTS_1000HZ && \
2875		     !SYS_SUPPORTS_1024HZ
2876
2877config HZ
2878	int
2879	default 24 if HZ_24
2880	default 48 if HZ_48
2881	default 100 if HZ_100
2882	default 128 if HZ_128
2883	default 250 if HZ_250
2884	default 256 if HZ_256
2885	default 1000 if HZ_1000
2886	default 1024 if HZ_1024
2887
2888config SCHED_HRTICK
2889	def_bool HIGH_RES_TIMERS
2890
2891config KEXEC
2892	bool "Kexec system call"
2893	select KEXEC_CORE
2894	help
2895	  kexec is a system call that implements the ability to shutdown your
2896	  current kernel, and to start another kernel.  It is like a reboot
2897	  but it is independent of the system firmware.   And like a reboot
2898	  you can start any kernel with it, not just Linux.
2899
2900	  The name comes from the similarity to the exec system call.
2901
2902	  It is an ongoing process to be certain the hardware in a machine
2903	  is properly shutdown, so do not be surprised if this code does not
2904	  initially work for you.  As of this writing the exact hardware
2905	  interface is strongly in flux, so no good recommendation can be
2906	  made.
2907
2908config CRASH_DUMP
2909	bool "Kernel crash dumps"
2910	help
2911	  Generate crash dump after being started by kexec.
2912	  This should be normally only set in special crash dump kernels
2913	  which are loaded in the main kernel with kexec-tools into
2914	  a specially reserved region and then later executed after
2915	  a crash by kdump/kexec. The crash dump kernel must be compiled
2916	  to a memory address not used by the main kernel or firmware using
2917	  PHYSICAL_START.
2918
2919config PHYSICAL_START
2920	hex "Physical address where the kernel is loaded"
2921	default "0xffffffff84000000"
2922	depends on CRASH_DUMP
2923	help
2924	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2925	  If you plan to use kernel for capturing the crash dump change
2926	  this value to start of the reserved region (the "X" value as
2927	  specified in the "crashkernel=YM@XM" command line boot parameter
2928	  passed to the panic-ed kernel).
2929
2930config SECCOMP
2931	bool "Enable seccomp to safely compute untrusted bytecode"
2932	depends on PROC_FS
2933	default y
2934	help
2935	  This kernel feature is useful for number crunching applications
2936	  that may need to compute untrusted bytecode during their
2937	  execution. By using pipes or other transports made available to
2938	  the process as file descriptors supporting the read/write
2939	  syscalls, it's possible to isolate those applications in
2940	  their own address space using seccomp. Once seccomp is
2941	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2942	  and the task is only allowed to execute a few safe syscalls
2943	  defined by each seccomp mode.
2944
2945	  If unsure, say Y. Only embedded should say N here.
2946
2947config MIPS_O32_FP64_SUPPORT
2948	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2949	depends on 32BIT || MIPS32_O32
2950	help
2951	  When this is enabled, the kernel will support use of 64-bit floating
2952	  point registers with binaries using the O32 ABI along with the
2953	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2954	  32-bit MIPS systems this support is at the cost of increasing the
2955	  size and complexity of the compiled FPU emulator. Thus if you are
2956	  running a MIPS32 system and know that none of your userland binaries
2957	  will require 64-bit floating point, you may wish to reduce the size
2958	  of your kernel & potentially improve FP emulation performance by
2959	  saying N here.
2960
2961	  Although binutils currently supports use of this flag the details
2962	  concerning its effect upon the O32 ABI in userland are still being
2963	  worked on. In order to avoid userland becoming dependant upon current
2964	  behaviour before the details have been finalised, this option should
2965	  be considered experimental and only enabled by those working upon
2966	  said details.
2967
2968	  If unsure, say N.
2969
2970config USE_OF
2971	bool
2972	select OF
2973	select OF_EARLY_FLATTREE
2974	select IRQ_DOMAIN
2975
2976config UHI_BOOT
2977	bool
2978
2979config BUILTIN_DTB
2980	bool
2981
2982choice
2983	prompt "Kernel appended dtb support" if USE_OF
2984	default MIPS_NO_APPENDED_DTB
2985
2986	config MIPS_NO_APPENDED_DTB
2987		bool "None"
2988		help
2989		  Do not enable appended dtb support.
2990
2991	config MIPS_ELF_APPENDED_DTB
2992		bool "vmlinux"
2993		help
2994		  With this option, the boot code will look for a device tree binary
2995		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2996		  it is empty and the DTB can be appended using binutils command
2997		  objcopy:
2998
2999		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3000
3001		  This is meant as a backward compatiblity convenience for those
3002		  systems with a bootloader that can't be upgraded to accommodate
3003		  the documented boot protocol using a device tree.
3004
3005	config MIPS_RAW_APPENDED_DTB
3006		bool "vmlinux.bin or vmlinuz.bin"
3007		help
3008		  With this option, the boot code will look for a device tree binary
3009		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3010		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3011
3012		  This is meant as a backward compatibility convenience for those
3013		  systems with a bootloader that can't be upgraded to accommodate
3014		  the documented boot protocol using a device tree.
3015
3016		  Beware that there is very little in terms of protection against
3017		  this option being confused by leftover garbage in memory that might
3018		  look like a DTB header after a reboot if no actual DTB is appended
3019		  to vmlinux.bin.  Do not leave this option active in a production kernel
3020		  if you don't intend to always append a DTB.
3021endchoice
3022
3023choice
3024	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3025	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3026					 !MIPS_MALTA && \
3027					 !CAVIUM_OCTEON_SOC
3028	default MIPS_CMDLINE_FROM_BOOTLOADER
3029
3030	config MIPS_CMDLINE_FROM_DTB
3031		depends on USE_OF
3032		bool "Dtb kernel arguments if available"
3033
3034	config MIPS_CMDLINE_DTB_EXTEND
3035		depends on USE_OF
3036		bool "Extend dtb kernel arguments with bootloader arguments"
3037
3038	config MIPS_CMDLINE_FROM_BOOTLOADER
3039		bool "Bootloader kernel arguments if available"
3040
3041	config MIPS_CMDLINE_BUILTIN_EXTEND
3042		depends on CMDLINE_BOOL
3043		bool "Extend builtin kernel arguments with bootloader arguments"
3044endchoice
3045
3046endmenu
3047
3048config LOCKDEP_SUPPORT
3049	bool
3050	default y
3051
3052config STACKTRACE_SUPPORT
3053	bool
3054	default y
3055
3056config HAVE_LATENCYTOP_SUPPORT
3057	bool
3058	default y
3059
3060config PGTABLE_LEVELS
3061	int
3062	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3063	default 3 if 64BIT && !PAGE_SIZE_64KB
3064	default 2
3065
3066config MIPS_AUTO_PFN_OFFSET
3067	bool
3068
3069menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3070
3071config PCI_DRIVERS_GENERIC
3072	select PCI_DOMAINS_GENERIC if PCI
3073	bool
3074
3075config PCI_DRIVERS_LEGACY
3076	def_bool !PCI_DRIVERS_GENERIC
3077	select NO_GENERIC_PCI_IOPORT_MAP
3078	select PCI_DOMAINS if PCI
3079
3080#
3081# ISA support is now enabled via select.  Too many systems still have the one
3082# or other ISA chip on the board that users don't know about so don't expect
3083# users to choose the right thing ...
3084#
3085config ISA
3086	bool
3087
3088config TC
3089	bool "TURBOchannel support"
3090	depends on MACH_DECSTATION
3091	help
3092	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3093	  processors.  TURBOchannel programming specifications are available
3094	  at:
3095	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3096	  and:
3097	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3098	  Linux driver support status is documented at:
3099	  <http://www.linux-mips.org/wiki/DECstation>
3100
3101config MMU
3102	bool
3103	default y
3104
3105config ARCH_MMAP_RND_BITS_MIN
3106	default 12 if 64BIT
3107	default 8
3108
3109config ARCH_MMAP_RND_BITS_MAX
3110	default 18 if 64BIT
3111	default 15
3112
3113config ARCH_MMAP_RND_COMPAT_BITS_MIN
3114       default 8
3115
3116config ARCH_MMAP_RND_COMPAT_BITS_MAX
3117       default 15
3118
3119config I8253
3120	bool
3121	select CLKSRC_I8253
3122	select CLKEVT_I8253
3123	select MIPS_EXTERNAL_TIMER
3124
3125config ZONE_DMA
3126	bool
3127
3128config ZONE_DMA32
3129	bool
3130
3131endmenu
3132
3133config TRAD_SIGNALS
3134	bool
3135
3136config MIPS32_COMPAT
3137	bool
3138
3139config COMPAT
3140	bool
3141
3142config SYSVIPC_COMPAT
3143	bool
3144
3145config MIPS32_O32
3146	bool "Kernel support for o32 binaries"
3147	depends on 64BIT
3148	select ARCH_WANT_OLD_COMPAT_IPC
3149	select COMPAT
3150	select MIPS32_COMPAT
3151	select SYSVIPC_COMPAT if SYSVIPC
3152	help
3153	  Select this option if you want to run o32 binaries.  These are pure
3154	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3155	  existing binaries are in this format.
3156
3157	  If unsure, say Y.
3158
3159config MIPS32_N32
3160	bool "Kernel support for n32 binaries"
3161	depends on 64BIT
3162	select COMPAT
3163	select MIPS32_COMPAT
3164	select SYSVIPC_COMPAT if SYSVIPC
3165	help
3166	  Select this option if you want to run n32 binaries.  These are
3167	  64-bit binaries using 32-bit quantities for addressing and certain
3168	  data that would normally be 64-bit.  They are used in special
3169	  cases.
3170
3171	  If unsure, say N.
3172
3173config BINFMT_ELF32
3174	bool
3175	default y if MIPS32_O32 || MIPS32_N32
3176	select ELFCORE
3177
3178menu "Power management options"
3179
3180config ARCH_HIBERNATION_POSSIBLE
3181	def_bool y
3182	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3183
3184config ARCH_SUSPEND_POSSIBLE
3185	def_bool y
3186	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3187
3188source "kernel/power/Kconfig"
3189
3190endmenu
3191
3192config MIPS_EXTERNAL_TIMER
3193	bool
3194
3195menu "CPU Power Management"
3196
3197if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3198source "drivers/cpufreq/Kconfig"
3199endif
3200
3201source "drivers/cpuidle/Kconfig"
3202
3203endmenu
3204
3205source "drivers/firmware/Kconfig"
3206
3207source "arch/mips/kvm/Kconfig"
3208