xref: /openbmc/linux/arch/mips/Kconfig (revision 8b030a57)
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 MIPS_MACHINE
210	select SYS_HAS_CPU_MIPS32_R2
211	select SYS_HAS_EARLY_PRINTK
212	select SYS_SUPPORTS_32BIT_KERNEL
213	select SYS_SUPPORTS_BIG_ENDIAN
214	select SYS_SUPPORTS_MIPS16
215	select SYS_SUPPORTS_ZBOOT_UART_PROM
216	select USE_OF
217	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
218	help
219	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
220
221config BMIPS_GENERIC
222	bool "Broadcom Generic BMIPS kernel"
223	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
224	select ARCH_HAS_PHYS_TO_DMA
225	select BOOT_RAW
226	select NO_EXCEPT_FILL
227	select USE_OF
228	select CEVT_R4K
229	select CSRC_R4K
230	select SYNC_R4K
231	select COMMON_CLK
232	select BCM6345_L1_IRQ
233	select BCM7038_L1_IRQ
234	select BCM7120_L2_IRQ
235	select BRCMSTB_L2_IRQ
236	select IRQ_MIPS_CPU
237	select DMA_NONCOHERENT
238	select SYS_SUPPORTS_32BIT_KERNEL
239	select SYS_SUPPORTS_LITTLE_ENDIAN
240	select SYS_SUPPORTS_BIG_ENDIAN
241	select SYS_SUPPORTS_HIGHMEM
242	select SYS_HAS_CPU_BMIPS32_3300
243	select SYS_HAS_CPU_BMIPS4350
244	select SYS_HAS_CPU_BMIPS4380
245	select SYS_HAS_CPU_BMIPS5000
246	select SWAP_IO_SPACE
247	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
248	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
249	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
250	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
251	select HARDIRQS_SW_RESEND
252	help
253	  Build a generic DT-based kernel image that boots on select
254	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
255	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
256	  must be set appropriately for your board.
257
258config BCM47XX
259	bool "Broadcom BCM47XX based boards"
260	select BOOT_RAW
261	select CEVT_R4K
262	select CSRC_R4K
263	select DMA_NONCOHERENT
264	select HAVE_PCI
265	select IRQ_MIPS_CPU
266	select SYS_HAS_CPU_MIPS32_R1
267	select NO_EXCEPT_FILL
268	select SYS_SUPPORTS_32BIT_KERNEL
269	select SYS_SUPPORTS_LITTLE_ENDIAN
270	select SYS_SUPPORTS_MIPS16
271	select SYS_SUPPORTS_ZBOOT
272	select SYS_HAS_EARLY_PRINTK
273	select USE_GENERIC_EARLY_PRINTK_8250
274	select GPIOLIB
275	select LEDS_GPIO_REGISTER
276	select BCM47XX_NVRAM
277	select BCM47XX_SPROM
278	select BCM47XX_SSB if !BCM47XX_BCMA
279	help
280	 Support for BCM47XX based boards
281
282config BCM63XX
283	bool "Broadcom BCM63XX based boards"
284	select BOOT_RAW
285	select CEVT_R4K
286	select CSRC_R4K
287	select SYNC_R4K
288	select DMA_NONCOHERENT
289	select IRQ_MIPS_CPU
290	select SYS_SUPPORTS_32BIT_KERNEL
291	select SYS_SUPPORTS_BIG_ENDIAN
292	select SYS_HAS_EARLY_PRINTK
293	select SWAP_IO_SPACE
294	select GPIOLIB
295	select HAVE_CLK
296	select MIPS_L1_CACHE_SHIFT_4
297	select CLKDEV_LOOKUP
298	help
299	 Support for BCM63XX based boards
300
301config MIPS_COBALT
302	bool "Cobalt Server"
303	select CEVT_R4K
304	select CSRC_R4K
305	select CEVT_GT641XX
306	select DMA_NONCOHERENT
307	select FORCE_PCI
308	select I8253
309	select I8259
310	select IRQ_MIPS_CPU
311	select IRQ_GT641XX
312	select PCI_GT64XXX_PCI0
313	select SYS_HAS_CPU_NEVADA
314	select SYS_HAS_EARLY_PRINTK
315	select SYS_SUPPORTS_32BIT_KERNEL
316	select SYS_SUPPORTS_64BIT_KERNEL
317	select SYS_SUPPORTS_LITTLE_ENDIAN
318	select USE_GENERIC_EARLY_PRINTK_8250
319
320config MACH_DECSTATION
321	bool "DECstations"
322	select BOOT_ELF32
323	select CEVT_DS1287
324	select CEVT_R4K if CPU_R4X00
325	select CSRC_IOASIC
326	select CSRC_R4K if CPU_R4X00
327	select CPU_DADDI_WORKAROUNDS if 64BIT
328	select CPU_R4000_WORKAROUNDS if 64BIT
329	select CPU_R4400_WORKAROUNDS if 64BIT
330	select DMA_NONCOHERENT
331	select NO_IOPORT_MAP
332	select IRQ_MIPS_CPU
333	select SYS_HAS_CPU_R3000
334	select SYS_HAS_CPU_R4X00
335	select SYS_SUPPORTS_32BIT_KERNEL
336	select SYS_SUPPORTS_64BIT_KERNEL
337	select SYS_SUPPORTS_LITTLE_ENDIAN
338	select SYS_SUPPORTS_128HZ
339	select SYS_SUPPORTS_256HZ
340	select SYS_SUPPORTS_1024HZ
341	select MIPS_L1_CACHE_SHIFT_4
342	help
343	  This enables support for DEC's MIPS based workstations.  For details
344	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
345	  DECstation porting pages on <http://decstation.unix-ag.org/>.
346
347	  If you have one of the following DECstation Models you definitely
348	  want to choose R4xx0 for the CPU Type:
349
350		DECstation 5000/50
351		DECstation 5000/150
352		DECstation 5000/260
353		DECsystem 5900/260
354
355	  otherwise choose R3000.
356
357config MACH_JAZZ
358	bool "Jazz family of machines"
359	select ARCH_MIGHT_HAVE_PC_PARPORT
360	select ARCH_MIGHT_HAVE_PC_SERIO
361	select FW_ARC
362	select FW_ARC32
363	select ARCH_MAY_HAVE_PC_FDC
364	select CEVT_R4K
365	select CSRC_R4K
366	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
367	select GENERIC_ISA_DMA
368	select HAVE_PCSPKR_PLATFORM
369	select IRQ_MIPS_CPU
370	select I8253
371	select I8259
372	select ISA
373	select SYS_HAS_CPU_R4X00
374	select SYS_SUPPORTS_32BIT_KERNEL
375	select SYS_SUPPORTS_64BIT_KERNEL
376	select SYS_SUPPORTS_100HZ
377	help
378	 This a family of machines based on the MIPS R4030 chipset which was
379	 used by several vendors to build RISC/os and Windows NT workstations.
380	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
381	 Olivetti M700-10 workstations.
382
383config MACH_INGENIC
384	bool "Ingenic SoC based machines"
385	select SYS_SUPPORTS_32BIT_KERNEL
386	select SYS_SUPPORTS_LITTLE_ENDIAN
387	select SYS_SUPPORTS_ZBOOT_UART16550
388	select DMA_NONCOHERENT
389	select IRQ_MIPS_CPU
390	select PINCTRL
391	select GPIOLIB
392	select COMMON_CLK
393	select GENERIC_IRQ_CHIP
394	select BUILTIN_DTB
395	select USE_OF
396	select LIBFDT
397
398config LANTIQ
399	bool "Lantiq based platforms"
400	select DMA_NONCOHERENT
401	select IRQ_MIPS_CPU
402	select CEVT_R4K
403	select CSRC_R4K
404	select SYS_HAS_CPU_MIPS32_R1
405	select SYS_HAS_CPU_MIPS32_R2
406	select SYS_SUPPORTS_BIG_ENDIAN
407	select SYS_SUPPORTS_32BIT_KERNEL
408	select SYS_SUPPORTS_MIPS16
409	select SYS_SUPPORTS_MULTITHREADING
410	select SYS_SUPPORTS_VPE_LOADER
411	select SYS_HAS_EARLY_PRINTK
412	select GPIOLIB
413	select SWAP_IO_SPACE
414	select BOOT_RAW
415	select CLKDEV_LOOKUP
416	select USE_OF
417	select PINCTRL
418	select PINCTRL_LANTIQ
419	select ARCH_HAS_RESET_CONTROLLER
420	select RESET_CONTROLLER
421
422config LASAT
423	bool "LASAT Networks platforms"
424	select CEVT_R4K
425	select CRC32
426	select CSRC_R4K
427	select DMA_NONCOHERENT
428	select SYS_HAS_EARLY_PRINTK
429	select HAVE_PCI
430	select IRQ_MIPS_CPU
431	select PCI_GT64XXX_PCI0
432	select MIPS_NILE4
433	select R5000_CPU_SCACHE
434	select SYS_HAS_CPU_R5000
435	select SYS_SUPPORTS_32BIT_KERNEL
436	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
437	select SYS_SUPPORTS_LITTLE_ENDIAN
438
439config MACH_LOONGSON32
440	bool "Loongson-1 family of machines"
441	select SYS_SUPPORTS_ZBOOT
442	help
443	  This enables support for the Loongson-1 family of machines.
444
445	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
446	  the Institute of Computing Technology (ICT), Chinese Academy of
447	  Sciences (CAS).
448
449config MACH_LOONGSON64
450	bool "Loongson-2/3 family of machines"
451	select SYS_SUPPORTS_ZBOOT
452	help
453	  This enables the support of Loongson-2/3 family of machines.
454
455	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
456	  family of multi-core CPUs. They are both 64-bit general-purpose
457	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
458	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
459	  in the People's Republic of China. The chief architect is Professor
460	  Weiwu Hu.
461
462config MACH_PISTACHIO
463	bool "IMG Pistachio SoC based boards"
464	select BOOT_ELF32
465	select BOOT_RAW
466	select CEVT_R4K
467	select CLKSRC_MIPS_GIC
468	select COMMON_CLK
469	select CSRC_R4K
470	select DMA_NONCOHERENT
471	select GPIOLIB
472	select IRQ_MIPS_CPU
473	select LIBFDT
474	select MFD_SYSCON
475	select MIPS_CPU_SCACHE
476	select MIPS_GIC
477	select PINCTRL
478	select REGULATOR
479	select SYS_HAS_CPU_MIPS32_R2
480	select SYS_SUPPORTS_32BIT_KERNEL
481	select SYS_SUPPORTS_LITTLE_ENDIAN
482	select SYS_SUPPORTS_MIPS_CPS
483	select SYS_SUPPORTS_MULTITHREADING
484	select SYS_SUPPORTS_RELOCATABLE
485	select SYS_SUPPORTS_ZBOOT
486	select SYS_HAS_EARLY_PRINTK
487	select USE_GENERIC_EARLY_PRINTK_8250
488	select USE_OF
489	help
490	  This enables support for the IMG Pistachio SoC platform.
491
492config MIPS_MALTA
493	bool "MIPS Malta board"
494	select ARCH_MAY_HAVE_PC_FDC
495	select ARCH_MIGHT_HAVE_PC_PARPORT
496	select ARCH_MIGHT_HAVE_PC_SERIO
497	select BOOT_ELF32
498	select BOOT_RAW
499	select BUILTIN_DTB
500	select CEVT_R4K
501	select CLKSRC_MIPS_GIC
502	select COMMON_CLK
503	select CSRC_R4K
504	select DMA_MAYBE_COHERENT
505	select GENERIC_ISA_DMA
506	select HAVE_PCSPKR_PLATFORM
507	select HAVE_PCI
508	select I8253
509	select I8259
510	select IRQ_MIPS_CPU
511	select LIBFDT
512	select MIPS_BONITO64
513	select MIPS_CPU_SCACHE
514	select MIPS_GIC
515	select MIPS_L1_CACHE_SHIFT_6
516	select MIPS_MSC
517	select PCI_GT64XXX_PCI0
518	select SMP_UP if SMP
519	select SWAP_IO_SPACE
520	select SYS_HAS_CPU_MIPS32_R1
521	select SYS_HAS_CPU_MIPS32_R2
522	select SYS_HAS_CPU_MIPS32_R3_5
523	select SYS_HAS_CPU_MIPS32_R5
524	select SYS_HAS_CPU_MIPS32_R6
525	select SYS_HAS_CPU_MIPS64_R1
526	select SYS_HAS_CPU_MIPS64_R2
527	select SYS_HAS_CPU_MIPS64_R6
528	select SYS_HAS_CPU_NEVADA
529	select SYS_HAS_CPU_RM7000
530	select SYS_SUPPORTS_32BIT_KERNEL
531	select SYS_SUPPORTS_64BIT_KERNEL
532	select SYS_SUPPORTS_BIG_ENDIAN
533	select SYS_SUPPORTS_HIGHMEM
534	select SYS_SUPPORTS_LITTLE_ENDIAN
535	select SYS_SUPPORTS_MICROMIPS
536	select SYS_SUPPORTS_MIPS16
537	select SYS_SUPPORTS_MIPS_CMP
538	select SYS_SUPPORTS_MIPS_CPS
539	select SYS_SUPPORTS_MULTITHREADING
540	select SYS_SUPPORTS_RELOCATABLE
541	select SYS_SUPPORTS_SMARTMIPS
542	select SYS_SUPPORTS_VPE_LOADER
543	select SYS_SUPPORTS_ZBOOT
544	select USE_OF
545	select ZONE_DMA32 if 64BIT
546	help
547	  This enables support for the MIPS Technologies Malta evaluation
548	  board.
549
550config MACH_PIC32
551	bool "Microchip PIC32 Family"
552	help
553	  This enables support for the Microchip PIC32 family of platforms.
554
555	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
556	  microcontrollers.
557
558config NEC_MARKEINS
559	bool "NEC EMMA2RH Mark-eins board"
560	select SOC_EMMA2RH
561	select HAVE_PCI
562	help
563	  This enables support for the NEC Electronics Mark-eins boards.
564
565config MACH_VR41XX
566	bool "NEC VR4100 series based machines"
567	select CEVT_R4K
568	select CSRC_R4K
569	select SYS_HAS_CPU_VR41XX
570	select SYS_SUPPORTS_MIPS16
571	select GPIOLIB
572
573config NXP_STB220
574	bool "NXP STB220 board"
575	select SOC_PNX833X
576	help
577	 Support for NXP Semiconductors STB220 Development Board.
578
579config NXP_STB225
580	bool "NXP 225 board"
581	select SOC_PNX833X
582	select SOC_PNX8335
583	help
584	 Support for NXP Semiconductors STB225 Development Board.
585
586config PMC_MSP
587	bool "PMC-Sierra MSP chipsets"
588	select CEVT_R4K
589	select CSRC_R4K
590	select DMA_NONCOHERENT
591	select SWAP_IO_SPACE
592	select NO_EXCEPT_FILL
593	select BOOT_RAW
594	select SYS_HAS_CPU_MIPS32_R1
595	select SYS_HAS_CPU_MIPS32_R2
596	select SYS_SUPPORTS_32BIT_KERNEL
597	select SYS_SUPPORTS_BIG_ENDIAN
598	select SYS_SUPPORTS_MIPS16
599	select IRQ_MIPS_CPU
600	select SERIAL_8250
601	select SERIAL_8250_CONSOLE
602	select USB_EHCI_BIG_ENDIAN_MMIO
603	select USB_EHCI_BIG_ENDIAN_DESC
604	help
605	  This adds support for the PMC-Sierra family of Multi-Service
606	  Processor System-On-A-Chips.  These parts include a number
607	  of integrated peripherals, interfaces and DSPs in addition to
608	  a variety of MIPS cores.
609
610config RALINK
611	bool "Ralink based machines"
612	select CEVT_R4K
613	select CSRC_R4K
614	select BOOT_RAW
615	select DMA_NONCOHERENT
616	select IRQ_MIPS_CPU
617	select USE_OF
618	select SYS_HAS_CPU_MIPS32_R1
619	select SYS_HAS_CPU_MIPS32_R2
620	select SYS_SUPPORTS_32BIT_KERNEL
621	select SYS_SUPPORTS_LITTLE_ENDIAN
622	select SYS_SUPPORTS_MIPS16
623	select SYS_HAS_EARLY_PRINTK
624	select CLKDEV_LOOKUP
625	select ARCH_HAS_RESET_CONTROLLER
626	select RESET_CONTROLLER
627
628config SGI_IP22
629	bool "SGI IP22 (Indy/Indigo2)"
630	select FW_ARC
631	select FW_ARC32
632	select ARCH_MIGHT_HAVE_PC_SERIO
633	select BOOT_ELF32
634	select CEVT_R4K
635	select CSRC_R4K
636	select DEFAULT_SGI_PARTITION
637	select DMA_NONCOHERENT
638	select HAVE_EISA
639	select I8253
640	select I8259
641	select IP22_CPU_SCACHE
642	select IRQ_MIPS_CPU
643	select GENERIC_ISA_DMA_SUPPORT_BROKEN
644	select SGI_HAS_I8042
645	select SGI_HAS_INDYDOG
646	select SGI_HAS_HAL2
647	select SGI_HAS_SEEQ
648	select SGI_HAS_WD93
649	select SGI_HAS_ZILOG
650	select SWAP_IO_SPACE
651	select SYS_HAS_CPU_R4X00
652	select SYS_HAS_CPU_R5000
653	#
654	# Disable EARLY_PRINTK for now since it leads to overwritten prom
655	# memory during early boot on some machines.
656	#
657	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
658	# for a more details discussion
659	#
660	# select SYS_HAS_EARLY_PRINTK
661	select SYS_SUPPORTS_32BIT_KERNEL
662	select SYS_SUPPORTS_64BIT_KERNEL
663	select SYS_SUPPORTS_BIG_ENDIAN
664	select MIPS_L1_CACHE_SHIFT_7
665	help
666	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
667	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
668	  that runs on these, say Y here.
669
670config SGI_IP27
671	bool "SGI IP27 (Origin200/2000)"
672	select ARCH_HAS_PHYS_TO_DMA
673	select FW_ARC
674	select FW_ARC64
675	select BOOT_ELF64
676	select DEFAULT_SGI_PARTITION
677	select SYS_HAS_EARLY_PRINTK
678	select HAVE_PCI
679	select NR_CPUS_DEFAULT_64
680	select SYS_HAS_CPU_R10000
681	select SYS_SUPPORTS_64BIT_KERNEL
682	select SYS_SUPPORTS_BIG_ENDIAN
683	select SYS_SUPPORTS_NUMA
684	select SYS_SUPPORTS_SMP
685	select MIPS_L1_CACHE_SHIFT_7
686	help
687	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
688	  workstations.  To compile a Linux kernel that runs on these, say Y
689	  here.
690
691config SGI_IP28
692	bool "SGI IP28 (Indigo2 R10k)"
693	select FW_ARC
694	select FW_ARC64
695	select ARCH_MIGHT_HAVE_PC_SERIO
696	select BOOT_ELF64
697	select CEVT_R4K
698	select CSRC_R4K
699	select DEFAULT_SGI_PARTITION
700	select DMA_NONCOHERENT
701	select GENERIC_ISA_DMA_SUPPORT_BROKEN
702	select IRQ_MIPS_CPU
703	select HAVE_EISA
704	select I8253
705	select I8259
706	select SGI_HAS_I8042
707	select SGI_HAS_INDYDOG
708	select SGI_HAS_HAL2
709	select SGI_HAS_SEEQ
710	select SGI_HAS_WD93
711	select SGI_HAS_ZILOG
712	select SWAP_IO_SPACE
713	select SYS_HAS_CPU_R10000
714	#
715	# Disable EARLY_PRINTK for now since it leads to overwritten prom
716	# memory during early boot on some machines.
717	#
718	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
719	# for a more details discussion
720	#
721	# select SYS_HAS_EARLY_PRINTK
722	select SYS_SUPPORTS_64BIT_KERNEL
723	select SYS_SUPPORTS_BIG_ENDIAN
724	select MIPS_L1_CACHE_SHIFT_7
725      help
726        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
727        kernel that runs on these, say Y here.
728
729config SGI_IP32
730	bool "SGI IP32 (O2)"
731	select ARCH_HAS_PHYS_TO_DMA
732	select FW_ARC
733	select FW_ARC32
734	select BOOT_ELF32
735	select CEVT_R4K
736	select CSRC_R4K
737	select DMA_NONCOHERENT
738	select HAVE_PCI
739	select IRQ_MIPS_CPU
740	select R5000_CPU_SCACHE
741	select RM7000_CPU_SCACHE
742	select SYS_HAS_CPU_R5000
743	select SYS_HAS_CPU_R10000 if BROKEN
744	select SYS_HAS_CPU_RM7000
745	select SYS_HAS_CPU_NEVADA
746	select SYS_SUPPORTS_64BIT_KERNEL
747	select SYS_SUPPORTS_BIG_ENDIAN
748	help
749	  If you want this kernel to run on SGI O2 workstation, say Y here.
750
751config SIBYTE_CRHINE
752	bool "Sibyte BCM91120C-CRhine"
753	select BOOT_ELF32
754	select SIBYTE_BCM1120
755	select SWAP_IO_SPACE
756	select SYS_HAS_CPU_SB1
757	select SYS_SUPPORTS_BIG_ENDIAN
758	select SYS_SUPPORTS_LITTLE_ENDIAN
759
760config SIBYTE_CARMEL
761	bool "Sibyte BCM91120x-Carmel"
762	select BOOT_ELF32
763	select SIBYTE_BCM1120
764	select SWAP_IO_SPACE
765	select SYS_HAS_CPU_SB1
766	select SYS_SUPPORTS_BIG_ENDIAN
767	select SYS_SUPPORTS_LITTLE_ENDIAN
768
769config SIBYTE_CRHONE
770	bool "Sibyte BCM91125C-CRhone"
771	select BOOT_ELF32
772	select SIBYTE_BCM1125
773	select SWAP_IO_SPACE
774	select SYS_HAS_CPU_SB1
775	select SYS_SUPPORTS_BIG_ENDIAN
776	select SYS_SUPPORTS_HIGHMEM
777	select SYS_SUPPORTS_LITTLE_ENDIAN
778
779config SIBYTE_RHONE
780	bool "Sibyte BCM91125E-Rhone"
781	select BOOT_ELF32
782	select SIBYTE_BCM1125H
783	select SWAP_IO_SPACE
784	select SYS_HAS_CPU_SB1
785	select SYS_SUPPORTS_BIG_ENDIAN
786	select SYS_SUPPORTS_LITTLE_ENDIAN
787
788config SIBYTE_SWARM
789	bool "Sibyte BCM91250A-SWARM"
790	select BOOT_ELF32
791	select HAVE_PATA_PLATFORM
792	select SIBYTE_SB1250
793	select SWAP_IO_SPACE
794	select SYS_HAS_CPU_SB1
795	select SYS_SUPPORTS_BIG_ENDIAN
796	select SYS_SUPPORTS_HIGHMEM
797	select SYS_SUPPORTS_LITTLE_ENDIAN
798	select ZONE_DMA32 if 64BIT
799	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
800
801config SIBYTE_LITTLESUR
802	bool "Sibyte BCM91250C2-LittleSur"
803	select BOOT_ELF32
804	select HAVE_PATA_PLATFORM
805	select SIBYTE_SB1250
806	select SWAP_IO_SPACE
807	select SYS_HAS_CPU_SB1
808	select SYS_SUPPORTS_BIG_ENDIAN
809	select SYS_SUPPORTS_HIGHMEM
810	select SYS_SUPPORTS_LITTLE_ENDIAN
811	select ZONE_DMA32 if 64BIT
812
813config SIBYTE_SENTOSA
814	bool "Sibyte BCM91250E-Sentosa"
815	select BOOT_ELF32
816	select SIBYTE_SB1250
817	select SWAP_IO_SPACE
818	select SYS_HAS_CPU_SB1
819	select SYS_SUPPORTS_BIG_ENDIAN
820	select SYS_SUPPORTS_LITTLE_ENDIAN
821	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
822
823config SIBYTE_BIGSUR
824	bool "Sibyte BCM91480B-BigSur"
825	select BOOT_ELF32
826	select NR_CPUS_DEFAULT_4
827	select SIBYTE_BCM1x80
828	select SWAP_IO_SPACE
829	select SYS_HAS_CPU_SB1
830	select SYS_SUPPORTS_BIG_ENDIAN
831	select SYS_SUPPORTS_HIGHMEM
832	select SYS_SUPPORTS_LITTLE_ENDIAN
833	select ZONE_DMA32 if 64BIT
834	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
835
836config SNI_RM
837	bool "SNI RM200/300/400"
838	select FW_ARC if CPU_LITTLE_ENDIAN
839	select FW_ARC32 if CPU_LITTLE_ENDIAN
840	select FW_SNIPROM if CPU_BIG_ENDIAN
841	select ARCH_MAY_HAVE_PC_FDC
842	select ARCH_MIGHT_HAVE_PC_PARPORT
843	select ARCH_MIGHT_HAVE_PC_SERIO
844	select BOOT_ELF32
845	select CEVT_R4K
846	select CSRC_R4K
847	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
848	select DMA_NONCOHERENT
849	select GENERIC_ISA_DMA
850	select HAVE_EISA
851	select HAVE_PCSPKR_PLATFORM
852	select HAVE_PCI
853	select IRQ_MIPS_CPU
854	select I8253
855	select I8259
856	select ISA
857	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
858	select SYS_HAS_CPU_R4X00
859	select SYS_HAS_CPU_R5000
860	select SYS_HAS_CPU_R10000
861	select R5000_CPU_SCACHE
862	select SYS_HAS_EARLY_PRINTK
863	select SYS_SUPPORTS_32BIT_KERNEL
864	select SYS_SUPPORTS_64BIT_KERNEL
865	select SYS_SUPPORTS_BIG_ENDIAN
866	select SYS_SUPPORTS_HIGHMEM
867	select SYS_SUPPORTS_LITTLE_ENDIAN
868	help
869	  The SNI RM200/300/400 are MIPS-based machines manufactured by
870	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
871	  Technology and now in turn merged with Fujitsu.  Say Y here to
872	  support this machine type.
873
874config MACH_TX39XX
875	bool "Toshiba TX39 series based machines"
876
877config MACH_TX49XX
878	bool "Toshiba TX49 series based machines"
879
880config MIKROTIK_RB532
881	bool "Mikrotik RB532 boards"
882	select CEVT_R4K
883	select CSRC_R4K
884	select DMA_NONCOHERENT
885	select HAVE_PCI
886	select IRQ_MIPS_CPU
887	select SYS_HAS_CPU_MIPS32_R1
888	select SYS_SUPPORTS_32BIT_KERNEL
889	select SYS_SUPPORTS_LITTLE_ENDIAN
890	select SWAP_IO_SPACE
891	select BOOT_RAW
892	select GPIOLIB
893	select MIPS_L1_CACHE_SHIFT_4
894	help
895	  Support the Mikrotik(tm) RouterBoard 532 series,
896	  based on the IDT RC32434 SoC.
897
898config CAVIUM_OCTEON_SOC
899	bool "Cavium Networks Octeon SoC based boards"
900	select CEVT_R4K
901	select ARCH_HAS_PHYS_TO_DMA
902	select HAVE_RAPIDIO
903	select PHYS_ADDR_T_64BIT
904	select SYS_SUPPORTS_64BIT_KERNEL
905	select SYS_SUPPORTS_BIG_ENDIAN
906	select EDAC_SUPPORT
907	select EDAC_ATOMIC_SCRUB
908	select SYS_SUPPORTS_LITTLE_ENDIAN
909	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
910	select SYS_HAS_EARLY_PRINTK
911	select SYS_HAS_CPU_CAVIUM_OCTEON
912	select HAVE_PCI
913	select ZONE_DMA32
914	select HOLES_IN_ZONE
915	select GPIOLIB
916	select LIBFDT
917	select USE_OF
918	select ARCH_SPARSEMEM_ENABLE
919	select SYS_SUPPORTS_SMP
920	select NR_CPUS_DEFAULT_64
921	select MIPS_NR_CPU_NR_MAP_1024
922	select BUILTIN_DTB
923	select MTD_COMPLEX_MAPPINGS
924	select SWIOTLB
925	select SYS_SUPPORTS_RELOCATABLE
926	help
927	  This option supports all of the Octeon reference boards from Cavium
928	  Networks. It builds a kernel that dynamically determines the Octeon
929	  CPU type and supports all known board reference implementations.
930	  Some of the supported boards are:
931		EBT3000
932		EBH3000
933		EBH3100
934		Thunder
935		Kodama
936		Hikari
937	  Say Y here for most Octeon reference boards.
938
939config NLM_XLR_BOARD
940	bool "Netlogic XLR/XLS based systems"
941	select BOOT_ELF32
942	select NLM_COMMON
943	select SYS_HAS_CPU_XLR
944	select SYS_SUPPORTS_SMP
945	select HAVE_PCI
946	select SWAP_IO_SPACE
947	select SYS_SUPPORTS_32BIT_KERNEL
948	select SYS_SUPPORTS_64BIT_KERNEL
949	select PHYS_ADDR_T_64BIT
950	select SYS_SUPPORTS_BIG_ENDIAN
951	select SYS_SUPPORTS_HIGHMEM
952	select NR_CPUS_DEFAULT_32
953	select CEVT_R4K
954	select CSRC_R4K
955	select IRQ_MIPS_CPU
956	select ZONE_DMA32 if 64BIT
957	select SYNC_R4K
958	select SYS_HAS_EARLY_PRINTK
959	select SYS_SUPPORTS_ZBOOT
960	select SYS_SUPPORTS_ZBOOT_UART16550
961	help
962	  Support for systems based on Netlogic XLR and XLS processors.
963	  Say Y here if you have a XLR or XLS based board.
964
965config NLM_XLP_BOARD
966	bool "Netlogic XLP based systems"
967	select BOOT_ELF32
968	select NLM_COMMON
969	select SYS_HAS_CPU_XLP
970	select SYS_SUPPORTS_SMP
971	select HAVE_PCI
972	select SYS_SUPPORTS_32BIT_KERNEL
973	select SYS_SUPPORTS_64BIT_KERNEL
974	select PHYS_ADDR_T_64BIT
975	select GPIOLIB
976	select SYS_SUPPORTS_BIG_ENDIAN
977	select SYS_SUPPORTS_LITTLE_ENDIAN
978	select SYS_SUPPORTS_HIGHMEM
979	select NR_CPUS_DEFAULT_32
980	select CEVT_R4K
981	select CSRC_R4K
982	select IRQ_MIPS_CPU
983	select ZONE_DMA32 if 64BIT
984	select SYNC_R4K
985	select SYS_HAS_EARLY_PRINTK
986	select USE_OF
987	select SYS_SUPPORTS_ZBOOT
988	select SYS_SUPPORTS_ZBOOT_UART16550
989	help
990	  This board is based on Netlogic XLP Processor.
991	  Say Y here if you have a XLP based board.
992
993config MIPS_PARAVIRT
994	bool "Para-Virtualized guest system"
995	select CEVT_R4K
996	select CSRC_R4K
997	select SYS_SUPPORTS_64BIT_KERNEL
998	select SYS_SUPPORTS_32BIT_KERNEL
999	select SYS_SUPPORTS_BIG_ENDIAN
1000	select SYS_SUPPORTS_SMP
1001	select NR_CPUS_DEFAULT_4
1002	select SYS_HAS_EARLY_PRINTK
1003	select SYS_HAS_CPU_MIPS32_R2
1004	select SYS_HAS_CPU_MIPS64_R2
1005	select SYS_HAS_CPU_CAVIUM_OCTEON
1006	select HAVE_PCI
1007	select SWAP_IO_SPACE
1008	help
1009	  This option supports guest running under ????
1010
1011endchoice
1012
1013source "arch/mips/alchemy/Kconfig"
1014source "arch/mips/ath25/Kconfig"
1015source "arch/mips/ath79/Kconfig"
1016source "arch/mips/bcm47xx/Kconfig"
1017source "arch/mips/bcm63xx/Kconfig"
1018source "arch/mips/bmips/Kconfig"
1019source "arch/mips/generic/Kconfig"
1020source "arch/mips/jazz/Kconfig"
1021source "arch/mips/jz4740/Kconfig"
1022source "arch/mips/lantiq/Kconfig"
1023source "arch/mips/lasat/Kconfig"
1024source "arch/mips/pic32/Kconfig"
1025source "arch/mips/pistachio/Kconfig"
1026source "arch/mips/pmcs-msp71xx/Kconfig"
1027source "arch/mips/ralink/Kconfig"
1028source "arch/mips/sgi-ip27/Kconfig"
1029source "arch/mips/sibyte/Kconfig"
1030source "arch/mips/txx9/Kconfig"
1031source "arch/mips/vr41xx/Kconfig"
1032source "arch/mips/cavium-octeon/Kconfig"
1033source "arch/mips/loongson32/Kconfig"
1034source "arch/mips/loongson64/Kconfig"
1035source "arch/mips/netlogic/Kconfig"
1036source "arch/mips/paravirt/Kconfig"
1037
1038endmenu
1039
1040config RWSEM_GENERIC_SPINLOCK
1041	bool
1042	default y
1043
1044config RWSEM_XCHGADD_ALGORITHM
1045	bool
1046
1047config GENERIC_HWEIGHT
1048	bool
1049	default y
1050
1051config GENERIC_CALIBRATE_DELAY
1052	bool
1053	default y
1054
1055config SCHED_OMIT_FRAME_POINTER
1056	bool
1057	default y
1058
1059#
1060# Select some configuration options automatically based on user selections.
1061#
1062config FW_ARC
1063	bool
1064
1065config ARCH_MAY_HAVE_PC_FDC
1066	bool
1067
1068config BOOT_RAW
1069	bool
1070
1071config CEVT_BCM1480
1072	bool
1073
1074config CEVT_DS1287
1075	bool
1076
1077config CEVT_GT641XX
1078	bool
1079
1080config CEVT_R4K
1081	bool
1082
1083config CEVT_SB1250
1084	bool
1085
1086config CEVT_TXX9
1087	bool
1088
1089config CSRC_BCM1480
1090	bool
1091
1092config CSRC_IOASIC
1093	bool
1094
1095config CSRC_R4K
1096	bool
1097
1098config CSRC_SB1250
1099	bool
1100
1101config MIPS_CLOCK_VSYSCALL
1102	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1103
1104config GPIO_TXX9
1105	select GPIOLIB
1106	bool
1107
1108config FW_CFE
1109	bool
1110
1111config ARCH_SUPPORTS_UPROBES
1112	bool
1113
1114config DMA_MAYBE_COHERENT
1115	select ARCH_HAS_DMA_COHERENCE_H
1116	select DMA_NONCOHERENT
1117	bool
1118
1119config DMA_PERDEV_COHERENT
1120	bool
1121	select DMA_NONCOHERENT
1122
1123config DMA_NONCOHERENT
1124	bool
1125	select ARCH_HAS_DMA_MMAP_PGPROT
1126	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1127	select ARCH_HAS_SYNC_DMA_FOR_CPU
1128	select NEED_DMA_MAP_STATE
1129	select ARCH_HAS_DMA_COHERENT_TO_PFN
1130	select DMA_NONCOHERENT_CACHE_SYNC
1131
1132config SYS_HAS_EARLY_PRINTK
1133	bool
1134
1135config SYS_SUPPORTS_HOTPLUG_CPU
1136	bool
1137
1138config MIPS_BONITO64
1139	bool
1140
1141config MIPS_MSC
1142	bool
1143
1144config MIPS_NILE4
1145	bool
1146
1147config SYNC_R4K
1148	bool
1149
1150config MIPS_MACHINE
1151	def_bool n
1152
1153config NO_IOPORT_MAP
1154	def_bool n
1155
1156config GENERIC_CSUM
1157	bool
1158	default y if !CPU_HAS_LOAD_STORE_LR
1159
1160config GENERIC_ISA_DMA
1161	bool
1162	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1163	select ISA_DMA_API
1164
1165config GENERIC_ISA_DMA_SUPPORT_BROKEN
1166	bool
1167	select GENERIC_ISA_DMA
1168
1169config ISA_DMA_API
1170	bool
1171
1172config HOLES_IN_ZONE
1173	bool
1174
1175config SYS_SUPPORTS_RELOCATABLE
1176	bool
1177	help
1178	 Selected if the platform supports relocating the kernel.
1179	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1180	 to allow access to command line and entropy sources.
1181
1182config MIPS_CBPF_JIT
1183	def_bool y
1184	depends on BPF_JIT && HAVE_CBPF_JIT
1185
1186config MIPS_EBPF_JIT
1187	def_bool y
1188	depends on BPF_JIT && HAVE_EBPF_JIT
1189
1190
1191#
1192# Endianness selection.  Sufficiently obscure so many users don't know what to
1193# answer,so we try hard to limit the available choices.  Also the use of a
1194# choice statement should be more obvious to the user.
1195#
1196choice
1197	prompt "Endianness selection"
1198	help
1199	  Some MIPS machines can be configured for either little or big endian
1200	  byte order. These modes require different kernels and a different
1201	  Linux distribution.  In general there is one preferred byteorder for a
1202	  particular system but some systems are just as commonly used in the
1203	  one or the other endianness.
1204
1205config CPU_BIG_ENDIAN
1206	bool "Big endian"
1207	depends on SYS_SUPPORTS_BIG_ENDIAN
1208
1209config CPU_LITTLE_ENDIAN
1210	bool "Little endian"
1211	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1212
1213endchoice
1214
1215config EXPORT_UASM
1216	bool
1217
1218config SYS_SUPPORTS_APM_EMULATION
1219	bool
1220
1221config SYS_SUPPORTS_BIG_ENDIAN
1222	bool
1223
1224config SYS_SUPPORTS_LITTLE_ENDIAN
1225	bool
1226
1227config SYS_SUPPORTS_HUGETLBFS
1228	bool
1229	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1230	default y
1231
1232config MIPS_HUGE_TLB_SUPPORT
1233	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1234
1235config IRQ_CPU_RM7K
1236	bool
1237
1238config IRQ_MSP_SLP
1239	bool
1240
1241config IRQ_MSP_CIC
1242	bool
1243
1244config IRQ_TXX9
1245	bool
1246
1247config IRQ_GT641XX
1248	bool
1249
1250config PCI_GT64XXX_PCI0
1251	bool
1252
1253config NO_EXCEPT_FILL
1254	bool
1255
1256config SOC_EMMA2RH
1257	bool
1258	select CEVT_R4K
1259	select CSRC_R4K
1260	select DMA_NONCOHERENT
1261	select IRQ_MIPS_CPU
1262	select SWAP_IO_SPACE
1263	select SYS_HAS_CPU_R5500
1264	select SYS_SUPPORTS_32BIT_KERNEL
1265	select SYS_SUPPORTS_64BIT_KERNEL
1266	select SYS_SUPPORTS_BIG_ENDIAN
1267
1268config SOC_PNX833X
1269	bool
1270	select CEVT_R4K
1271	select CSRC_R4K
1272	select IRQ_MIPS_CPU
1273	select DMA_NONCOHERENT
1274	select SYS_HAS_CPU_MIPS32_R2
1275	select SYS_SUPPORTS_32BIT_KERNEL
1276	select SYS_SUPPORTS_LITTLE_ENDIAN
1277	select SYS_SUPPORTS_BIG_ENDIAN
1278	select SYS_SUPPORTS_MIPS16
1279	select CPU_MIPSR2_IRQ_VI
1280
1281config SOC_PNX8335
1282	bool
1283	select SOC_PNX833X
1284
1285config MIPS_SPRAM
1286	bool
1287
1288config SWAP_IO_SPACE
1289	bool
1290
1291config SGI_HAS_INDYDOG
1292	bool
1293
1294config SGI_HAS_HAL2
1295	bool
1296
1297config SGI_HAS_SEEQ
1298	bool
1299
1300config SGI_HAS_WD93
1301	bool
1302
1303config SGI_HAS_ZILOG
1304	bool
1305
1306config SGI_HAS_I8042
1307	bool
1308
1309config DEFAULT_SGI_PARTITION
1310	bool
1311
1312config FW_ARC32
1313	bool
1314
1315config FW_SNIPROM
1316	bool
1317
1318config BOOT_ELF32
1319	bool
1320
1321config MIPS_L1_CACHE_SHIFT_4
1322	bool
1323
1324config MIPS_L1_CACHE_SHIFT_5
1325	bool
1326
1327config MIPS_L1_CACHE_SHIFT_6
1328	bool
1329
1330config MIPS_L1_CACHE_SHIFT_7
1331	bool
1332
1333config MIPS_L1_CACHE_SHIFT
1334	int
1335	default "7" if MIPS_L1_CACHE_SHIFT_7
1336	default "6" if MIPS_L1_CACHE_SHIFT_6
1337	default "5" if MIPS_L1_CACHE_SHIFT_5
1338	default "4" if MIPS_L1_CACHE_SHIFT_4
1339	default "5"
1340
1341config HAVE_STD_PC_SERIAL_PORT
1342	bool
1343
1344config ARC_CONSOLE
1345	bool "ARC console support"
1346	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1347
1348config ARC_MEMORY
1349	bool
1350	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1351	default y
1352
1353config ARC_PROMLIB
1354	bool
1355	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1356	default y
1357
1358config FW_ARC64
1359	bool
1360
1361config BOOT_ELF64
1362	bool
1363
1364menu "CPU selection"
1365
1366choice
1367	prompt "CPU type"
1368	default CPU_R4X00
1369
1370config CPU_LOONGSON3
1371	bool "Loongson 3 CPU"
1372	depends on SYS_HAS_CPU_LOONGSON3
1373	select ARCH_HAS_PHYS_TO_DMA
1374	select CPU_SUPPORTS_64BIT_KERNEL
1375	select CPU_SUPPORTS_HIGHMEM
1376	select CPU_SUPPORTS_HUGEPAGES
1377	select CPU_HAS_LOAD_STORE_LR
1378	select WEAK_ORDERING
1379	select WEAK_REORDERING_BEYOND_LLSC
1380	select MIPS_PGD_C0_CONTEXT
1381	select MIPS_L1_CACHE_SHIFT_6
1382	select GPIOLIB
1383	select SWIOTLB
1384	help
1385		The Loongson 3 processor implements the MIPS64R2 instruction
1386		set with many extensions.
1387
1388config LOONGSON3_ENHANCEMENT
1389	bool "New Loongson 3 CPU Enhancements"
1390	default n
1391	select CPU_MIPSR2
1392	select CPU_HAS_PREFETCH
1393	depends on CPU_LOONGSON3
1394	help
1395	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1396	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1397	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1398	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1399	  Fast TLB refill support, etc.
1400
1401	  This option enable those enhancements which are not probed at run
1402	  time. If you want a generic kernel to run on all Loongson 3 machines,
1403	  please say 'N' here. If you want a high-performance kernel to run on
1404	  new Loongson 3 machines only, please say 'Y' here.
1405
1406config CPU_LOONGSON3_WORKAROUNDS
1407	bool "Old Loongson 3 LLSC Workarounds"
1408	default y if SMP
1409	depends on CPU_LOONGSON3
1410	help
1411	  Loongson 3 processors have the llsc issues which require workarounds.
1412	  Without workarounds the system may hang unexpectedly.
1413
1414	  Newer Loongson 3 will fix these issues and no workarounds are needed.
1415	  The workarounds have no significant side effect on them but may
1416	  decrease the performance of the system so this option should be
1417	  disabled unless the kernel is intended to be run on old systems.
1418
1419	  If unsure, please say Y.
1420
1421config CPU_LOONGSON2E
1422	bool "Loongson 2E"
1423	depends on SYS_HAS_CPU_LOONGSON2E
1424	select CPU_LOONGSON2
1425	help
1426	  The Loongson 2E processor implements the MIPS III instruction set
1427	  with many extensions.
1428
1429	  It has an internal FPGA northbridge, which is compatible to
1430	  bonito64.
1431
1432config CPU_LOONGSON2F
1433	bool "Loongson 2F"
1434	depends on SYS_HAS_CPU_LOONGSON2F
1435	select CPU_LOONGSON2
1436	select GPIOLIB
1437	help
1438	  The Loongson 2F processor implements the MIPS III instruction set
1439	  with many extensions.
1440
1441	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1442	  have a similar programming interface with FPGA northbridge used in
1443	  Loongson2E.
1444
1445config CPU_LOONGSON1B
1446	bool "Loongson 1B"
1447	depends on SYS_HAS_CPU_LOONGSON1B
1448	select CPU_LOONGSON1
1449	select LEDS_GPIO_REGISTER
1450	help
1451	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1452	  Release 1 instruction set and part of the MIPS32 Release 2
1453	  instruction set.
1454
1455config CPU_LOONGSON1C
1456	bool "Loongson 1C"
1457	depends on SYS_HAS_CPU_LOONGSON1C
1458	select CPU_LOONGSON1
1459	select LEDS_GPIO_REGISTER
1460	help
1461	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1462	  Release 1 instruction set and part of the MIPS32 Release 2
1463	  instruction set.
1464
1465config CPU_MIPS32_R1
1466	bool "MIPS32 Release 1"
1467	depends on SYS_HAS_CPU_MIPS32_R1
1468	select CPU_HAS_PREFETCH
1469	select CPU_HAS_LOAD_STORE_LR
1470	select CPU_SUPPORTS_32BIT_KERNEL
1471	select CPU_SUPPORTS_HIGHMEM
1472	help
1473	  Choose this option to build a kernel for release 1 or later of the
1474	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1475	  MIPS processor are based on a MIPS32 processor.  If you know the
1476	  specific type of processor in your system, choose those that one
1477	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1478	  Release 2 of the MIPS32 architecture is available since several
1479	  years so chances are you even have a MIPS32 Release 2 processor
1480	  in which case you should choose CPU_MIPS32_R2 instead for better
1481	  performance.
1482
1483config CPU_MIPS32_R2
1484	bool "MIPS32 Release 2"
1485	depends on SYS_HAS_CPU_MIPS32_R2
1486	select CPU_HAS_PREFETCH
1487	select CPU_HAS_LOAD_STORE_LR
1488	select CPU_SUPPORTS_32BIT_KERNEL
1489	select CPU_SUPPORTS_HIGHMEM
1490	select CPU_SUPPORTS_MSA
1491	select HAVE_KVM
1492	help
1493	  Choose this option to build a kernel for release 2 or later of the
1494	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1495	  MIPS processor are based on a MIPS32 processor.  If you know the
1496	  specific type of processor in your system, choose those that one
1497	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1498
1499config CPU_MIPS32_R6
1500	bool "MIPS32 Release 6"
1501	depends on SYS_HAS_CPU_MIPS32_R6
1502	select CPU_HAS_PREFETCH
1503	select CPU_SUPPORTS_32BIT_KERNEL
1504	select CPU_SUPPORTS_HIGHMEM
1505	select CPU_SUPPORTS_MSA
1506	select HAVE_KVM
1507	select MIPS_O32_FP64_SUPPORT
1508	help
1509	  Choose this option to build a kernel for release 6 or later of the
1510	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1511	  family, are based on a MIPS32r6 processor. If you own an older
1512	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1513
1514config CPU_MIPS64_R1
1515	bool "MIPS64 Release 1"
1516	depends on SYS_HAS_CPU_MIPS64_R1
1517	select CPU_HAS_PREFETCH
1518	select CPU_HAS_LOAD_STORE_LR
1519	select CPU_SUPPORTS_32BIT_KERNEL
1520	select CPU_SUPPORTS_64BIT_KERNEL
1521	select CPU_SUPPORTS_HIGHMEM
1522	select CPU_SUPPORTS_HUGEPAGES
1523	help
1524	  Choose this option to build a kernel for release 1 or later of the
1525	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1526	  MIPS processor are based on a MIPS64 processor.  If you know the
1527	  specific type of processor in your system, choose those that one
1528	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1529	  Release 2 of the MIPS64 architecture is available since several
1530	  years so chances are you even have a MIPS64 Release 2 processor
1531	  in which case you should choose CPU_MIPS64_R2 instead for better
1532	  performance.
1533
1534config CPU_MIPS64_R2
1535	bool "MIPS64 Release 2"
1536	depends on SYS_HAS_CPU_MIPS64_R2
1537	select CPU_HAS_PREFETCH
1538	select CPU_HAS_LOAD_STORE_LR
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 HAVE_KVM
1545	help
1546	  Choose this option to build a kernel for release 2 or later of the
1547	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1548	  MIPS processor are based on a MIPS64 processor.  If you know the
1549	  specific type of processor in your system, choose those that one
1550	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1551
1552config CPU_MIPS64_R6
1553	bool "MIPS64 Release 6"
1554	depends on SYS_HAS_CPU_MIPS64_R6
1555	select CPU_HAS_PREFETCH
1556	select CPU_SUPPORTS_32BIT_KERNEL
1557	select CPU_SUPPORTS_64BIT_KERNEL
1558	select CPU_SUPPORTS_HIGHMEM
1559	select CPU_SUPPORTS_MSA
1560	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1561	select HAVE_KVM
1562	help
1563	  Choose this option to build a kernel for release 6 or later of the
1564	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1565	  family, are based on a MIPS64r6 processor. If you own an older
1566	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1567
1568config CPU_R3000
1569	bool "R3000"
1570	depends on SYS_HAS_CPU_R3000
1571	select CPU_HAS_WB
1572	select CPU_HAS_LOAD_STORE_LR
1573	select CPU_SUPPORTS_32BIT_KERNEL
1574	select CPU_SUPPORTS_HIGHMEM
1575	help
1576	  Please make sure to pick the right CPU type. Linux/MIPS is not
1577	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1578	  *not* work on R4000 machines and vice versa.  However, since most
1579	  of the supported machines have an R4000 (or similar) CPU, R4x00
1580	  might be a safe bet.  If the resulting kernel does not work,
1581	  try to recompile with R3000.
1582
1583config CPU_TX39XX
1584	bool "R39XX"
1585	depends on SYS_HAS_CPU_TX39XX
1586	select CPU_SUPPORTS_32BIT_KERNEL
1587	select CPU_HAS_LOAD_STORE_LR
1588
1589config CPU_VR41XX
1590	bool "R41xx"
1591	depends on SYS_HAS_CPU_VR41XX
1592	select CPU_SUPPORTS_32BIT_KERNEL
1593	select CPU_SUPPORTS_64BIT_KERNEL
1594	select CPU_HAS_LOAD_STORE_LR
1595	help
1596	  The options selects support for the NEC VR4100 series of processors.
1597	  Only choose this option if you have one of these processors as a
1598	  kernel built with this option will not run on any other type of
1599	  processor or vice versa.
1600
1601config CPU_R4300
1602	bool "R4300"
1603	depends on SYS_HAS_CPU_R4300
1604	select CPU_SUPPORTS_32BIT_KERNEL
1605	select CPU_SUPPORTS_64BIT_KERNEL
1606	select CPU_HAS_LOAD_STORE_LR
1607	help
1608	  MIPS Technologies R4300-series processors.
1609
1610config CPU_R4X00
1611	bool "R4x00"
1612	depends on SYS_HAS_CPU_R4X00
1613	select CPU_SUPPORTS_32BIT_KERNEL
1614	select CPU_SUPPORTS_64BIT_KERNEL
1615	select CPU_SUPPORTS_HUGEPAGES
1616	select CPU_HAS_LOAD_STORE_LR
1617	help
1618	  MIPS Technologies R4000-series processors other than 4300, including
1619	  the R4000, R4400, R4600, and 4700.
1620
1621config CPU_TX49XX
1622	bool "R49XX"
1623	depends on SYS_HAS_CPU_TX49XX
1624	select CPU_HAS_PREFETCH
1625	select CPU_HAS_LOAD_STORE_LR
1626	select CPU_SUPPORTS_32BIT_KERNEL
1627	select CPU_SUPPORTS_64BIT_KERNEL
1628	select CPU_SUPPORTS_HUGEPAGES
1629
1630config CPU_R5000
1631	bool "R5000"
1632	depends on SYS_HAS_CPU_R5000
1633	select CPU_SUPPORTS_32BIT_KERNEL
1634	select CPU_SUPPORTS_64BIT_KERNEL
1635	select CPU_SUPPORTS_HUGEPAGES
1636	select CPU_HAS_LOAD_STORE_LR
1637	help
1638	  MIPS Technologies R5000-series processors other than the Nevada.
1639
1640config CPU_R5432
1641	bool "R5432"
1642	depends on SYS_HAS_CPU_R5432
1643	select CPU_SUPPORTS_32BIT_KERNEL
1644	select CPU_SUPPORTS_64BIT_KERNEL
1645	select CPU_SUPPORTS_HUGEPAGES
1646	select CPU_HAS_LOAD_STORE_LR
1647
1648config CPU_R5500
1649	bool "R5500"
1650	depends on SYS_HAS_CPU_R5500
1651	select CPU_SUPPORTS_32BIT_KERNEL
1652	select CPU_SUPPORTS_64BIT_KERNEL
1653	select CPU_SUPPORTS_HUGEPAGES
1654	select CPU_HAS_LOAD_STORE_LR
1655	help
1656	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1657	  instruction set.
1658
1659config CPU_NEVADA
1660	bool "RM52xx"
1661	depends on SYS_HAS_CPU_NEVADA
1662	select CPU_SUPPORTS_32BIT_KERNEL
1663	select CPU_SUPPORTS_64BIT_KERNEL
1664	select CPU_SUPPORTS_HUGEPAGES
1665	select CPU_HAS_LOAD_STORE_LR
1666	help
1667	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1668
1669config CPU_R8000
1670	bool "R8000"
1671	depends on SYS_HAS_CPU_R8000
1672	select CPU_HAS_PREFETCH
1673	select CPU_HAS_LOAD_STORE_LR
1674	select CPU_SUPPORTS_64BIT_KERNEL
1675	help
1676	  MIPS Technologies R8000 processors.  Note these processors are
1677	  uncommon and the support for them is incomplete.
1678
1679config CPU_R10000
1680	bool "R10000"
1681	depends on SYS_HAS_CPU_R10000
1682	select CPU_HAS_PREFETCH
1683	select CPU_HAS_LOAD_STORE_LR
1684	select CPU_SUPPORTS_32BIT_KERNEL
1685	select CPU_SUPPORTS_64BIT_KERNEL
1686	select CPU_SUPPORTS_HIGHMEM
1687	select CPU_SUPPORTS_HUGEPAGES
1688	help
1689	  MIPS Technologies R10000-series processors.
1690
1691config CPU_RM7000
1692	bool "RM7000"
1693	depends on SYS_HAS_CPU_RM7000
1694	select CPU_HAS_PREFETCH
1695	select CPU_HAS_LOAD_STORE_LR
1696	select CPU_SUPPORTS_32BIT_KERNEL
1697	select CPU_SUPPORTS_64BIT_KERNEL
1698	select CPU_SUPPORTS_HIGHMEM
1699	select CPU_SUPPORTS_HUGEPAGES
1700
1701config CPU_SB1
1702	bool "SB1"
1703	depends on SYS_HAS_CPU_SB1
1704	select CPU_HAS_LOAD_STORE_LR
1705	select CPU_SUPPORTS_32BIT_KERNEL
1706	select CPU_SUPPORTS_64BIT_KERNEL
1707	select CPU_SUPPORTS_HIGHMEM
1708	select CPU_SUPPORTS_HUGEPAGES
1709	select WEAK_ORDERING
1710
1711config CPU_CAVIUM_OCTEON
1712	bool "Cavium Octeon processor"
1713	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1714	select CPU_HAS_PREFETCH
1715	select CPU_HAS_LOAD_STORE_LR
1716	select CPU_SUPPORTS_64BIT_KERNEL
1717	select WEAK_ORDERING
1718	select CPU_SUPPORTS_HIGHMEM
1719	select CPU_SUPPORTS_HUGEPAGES
1720	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1721	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1722	select MIPS_L1_CACHE_SHIFT_7
1723	select HAVE_KVM
1724	help
1725	  The Cavium Octeon processor is a highly integrated chip containing
1726	  many ethernet hardware widgets for networking tasks. The processor
1727	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1728	  Full details can be found at http://www.caviumnetworks.com.
1729
1730config CPU_BMIPS
1731	bool "Broadcom BMIPS"
1732	depends on SYS_HAS_CPU_BMIPS
1733	select CPU_MIPS32
1734	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1735	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1736	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1737	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1738	select CPU_SUPPORTS_32BIT_KERNEL
1739	select DMA_NONCOHERENT
1740	select IRQ_MIPS_CPU
1741	select SWAP_IO_SPACE
1742	select WEAK_ORDERING
1743	select CPU_SUPPORTS_HIGHMEM
1744	select CPU_HAS_PREFETCH
1745	select CPU_HAS_LOAD_STORE_LR
1746	select CPU_SUPPORTS_CPUFREQ
1747	select MIPS_EXTERNAL_TIMER
1748	help
1749	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1750
1751config CPU_XLR
1752	bool "Netlogic XLR SoC"
1753	depends on SYS_HAS_CPU_XLR
1754	select CPU_HAS_LOAD_STORE_LR
1755	select CPU_SUPPORTS_32BIT_KERNEL
1756	select CPU_SUPPORTS_64BIT_KERNEL
1757	select CPU_SUPPORTS_HIGHMEM
1758	select CPU_SUPPORTS_HUGEPAGES
1759	select WEAK_ORDERING
1760	select WEAK_REORDERING_BEYOND_LLSC
1761	help
1762	  Netlogic Microsystems XLR/XLS processors.
1763
1764config CPU_XLP
1765	bool "Netlogic XLP SoC"
1766	depends on SYS_HAS_CPU_XLP
1767	select CPU_SUPPORTS_32BIT_KERNEL
1768	select CPU_SUPPORTS_64BIT_KERNEL
1769	select CPU_SUPPORTS_HIGHMEM
1770	select WEAK_ORDERING
1771	select WEAK_REORDERING_BEYOND_LLSC
1772	select CPU_HAS_PREFETCH
1773	select CPU_HAS_LOAD_STORE_LR
1774	select CPU_MIPSR2
1775	select CPU_SUPPORTS_HUGEPAGES
1776	select MIPS_ASID_BITS_VARIABLE
1777	help
1778	  Netlogic Microsystems XLP processors.
1779endchoice
1780
1781config CPU_MIPS32_3_5_FEATURES
1782	bool "MIPS32 Release 3.5 Features"
1783	depends on SYS_HAS_CPU_MIPS32_R3_5
1784	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1785	help
1786	  Choose this option to build a kernel for release 2 or later of the
1787	  MIPS32 architecture including features from the 3.5 release such as
1788	  support for Enhanced Virtual Addressing (EVA).
1789
1790config CPU_MIPS32_3_5_EVA
1791	bool "Enhanced Virtual Addressing (EVA)"
1792	depends on CPU_MIPS32_3_5_FEATURES
1793	select EVA
1794	default y
1795	help
1796	  Choose this option if you want to enable the Enhanced Virtual
1797	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1798	  One of its primary benefits is an increase in the maximum size
1799	  of lowmem (up to 3GB). If unsure, say 'N' here.
1800
1801config CPU_MIPS32_R5_FEATURES
1802	bool "MIPS32 Release 5 Features"
1803	depends on SYS_HAS_CPU_MIPS32_R5
1804	depends on CPU_MIPS32_R2
1805	help
1806	  Choose this option to build a kernel for release 2 or later of the
1807	  MIPS32 architecture including features from release 5 such as
1808	  support for Extended Physical Addressing (XPA).
1809
1810config CPU_MIPS32_R5_XPA
1811	bool "Extended Physical Addressing (XPA)"
1812	depends on CPU_MIPS32_R5_FEATURES
1813	depends on !EVA
1814	depends on !PAGE_SIZE_4KB
1815	depends on SYS_SUPPORTS_HIGHMEM
1816	select XPA
1817	select HIGHMEM
1818	select PHYS_ADDR_T_64BIT
1819	default n
1820	help
1821	  Choose this option if you want to enable the Extended Physical
1822	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1823	  benefit is to increase physical addressing equal to or greater
1824	  than 40 bits. Note that this has the side effect of turning on
1825	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1826	  If unsure, say 'N' here.
1827
1828if CPU_LOONGSON2F
1829config CPU_NOP_WORKAROUNDS
1830	bool
1831
1832config CPU_JUMP_WORKAROUNDS
1833	bool
1834
1835config CPU_LOONGSON2F_WORKAROUNDS
1836	bool "Loongson 2F Workarounds"
1837	default y
1838	select CPU_NOP_WORKAROUNDS
1839	select CPU_JUMP_WORKAROUNDS
1840	help
1841	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1842	  require workarounds.  Without workarounds the system may hang
1843	  unexpectedly.  For more information please refer to the gas
1844	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1845
1846	  Loongson 2F03 and later have fixed these issues and no workarounds
1847	  are needed.  The workarounds have no significant side effect on them
1848	  but may decrease the performance of the system so this option should
1849	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1850	  systems.
1851
1852	  If unsure, please say Y.
1853endif # CPU_LOONGSON2F
1854
1855config SYS_SUPPORTS_ZBOOT
1856	bool
1857	select HAVE_KERNEL_GZIP
1858	select HAVE_KERNEL_BZIP2
1859	select HAVE_KERNEL_LZ4
1860	select HAVE_KERNEL_LZMA
1861	select HAVE_KERNEL_LZO
1862	select HAVE_KERNEL_XZ
1863
1864config SYS_SUPPORTS_ZBOOT_UART16550
1865	bool
1866	select SYS_SUPPORTS_ZBOOT
1867
1868config SYS_SUPPORTS_ZBOOT_UART_PROM
1869	bool
1870	select SYS_SUPPORTS_ZBOOT
1871
1872config CPU_LOONGSON2
1873	bool
1874	select CPU_SUPPORTS_32BIT_KERNEL
1875	select CPU_SUPPORTS_64BIT_KERNEL
1876	select CPU_SUPPORTS_HIGHMEM
1877	select CPU_SUPPORTS_HUGEPAGES
1878	select ARCH_HAS_PHYS_TO_DMA
1879	select CPU_HAS_LOAD_STORE_LR
1880
1881config CPU_LOONGSON1
1882	bool
1883	select CPU_MIPS32
1884	select CPU_MIPSR1
1885	select CPU_HAS_PREFETCH
1886	select CPU_HAS_LOAD_STORE_LR
1887	select CPU_SUPPORTS_32BIT_KERNEL
1888	select CPU_SUPPORTS_HIGHMEM
1889	select CPU_SUPPORTS_CPUFREQ
1890
1891config CPU_BMIPS32_3300
1892	select SMP_UP if SMP
1893	bool
1894
1895config CPU_BMIPS4350
1896	bool
1897	select SYS_SUPPORTS_SMP
1898	select SYS_SUPPORTS_HOTPLUG_CPU
1899
1900config CPU_BMIPS4380
1901	bool
1902	select MIPS_L1_CACHE_SHIFT_6
1903	select SYS_SUPPORTS_SMP
1904	select SYS_SUPPORTS_HOTPLUG_CPU
1905	select CPU_HAS_RIXI
1906
1907config CPU_BMIPS5000
1908	bool
1909	select MIPS_CPU_SCACHE
1910	select MIPS_L1_CACHE_SHIFT_7
1911	select SYS_SUPPORTS_SMP
1912	select SYS_SUPPORTS_HOTPLUG_CPU
1913	select CPU_HAS_RIXI
1914
1915config SYS_HAS_CPU_LOONGSON3
1916	bool
1917	select CPU_SUPPORTS_CPUFREQ
1918	select CPU_HAS_RIXI
1919
1920config SYS_HAS_CPU_LOONGSON2E
1921	bool
1922
1923config SYS_HAS_CPU_LOONGSON2F
1924	bool
1925	select CPU_SUPPORTS_CPUFREQ
1926	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1927	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1928
1929config SYS_HAS_CPU_LOONGSON1B
1930	bool
1931
1932config SYS_HAS_CPU_LOONGSON1C
1933	bool
1934
1935config SYS_HAS_CPU_MIPS32_R1
1936	bool
1937
1938config SYS_HAS_CPU_MIPS32_R2
1939	bool
1940
1941config SYS_HAS_CPU_MIPS32_R3_5
1942	bool
1943
1944config SYS_HAS_CPU_MIPS32_R5
1945	bool
1946
1947config SYS_HAS_CPU_MIPS32_R6
1948	bool
1949
1950config SYS_HAS_CPU_MIPS64_R1
1951	bool
1952
1953config SYS_HAS_CPU_MIPS64_R2
1954	bool
1955
1956config SYS_HAS_CPU_MIPS64_R6
1957	bool
1958
1959config SYS_HAS_CPU_R3000
1960	bool
1961
1962config SYS_HAS_CPU_TX39XX
1963	bool
1964
1965config SYS_HAS_CPU_VR41XX
1966	bool
1967
1968config SYS_HAS_CPU_R4300
1969	bool
1970
1971config SYS_HAS_CPU_R4X00
1972	bool
1973
1974config SYS_HAS_CPU_TX49XX
1975	bool
1976
1977config SYS_HAS_CPU_R5000
1978	bool
1979
1980config SYS_HAS_CPU_R5432
1981	bool
1982
1983config SYS_HAS_CPU_R5500
1984	bool
1985
1986config SYS_HAS_CPU_NEVADA
1987	bool
1988
1989config SYS_HAS_CPU_R8000
1990	bool
1991
1992config SYS_HAS_CPU_R10000
1993	bool
1994
1995config SYS_HAS_CPU_RM7000
1996	bool
1997
1998config SYS_HAS_CPU_SB1
1999	bool
2000
2001config SYS_HAS_CPU_CAVIUM_OCTEON
2002	bool
2003
2004config SYS_HAS_CPU_BMIPS
2005	bool
2006
2007config SYS_HAS_CPU_BMIPS32_3300
2008	bool
2009	select SYS_HAS_CPU_BMIPS
2010
2011config SYS_HAS_CPU_BMIPS4350
2012	bool
2013	select SYS_HAS_CPU_BMIPS
2014
2015config SYS_HAS_CPU_BMIPS4380
2016	bool
2017	select SYS_HAS_CPU_BMIPS
2018
2019config SYS_HAS_CPU_BMIPS5000
2020	bool
2021	select SYS_HAS_CPU_BMIPS
2022
2023config SYS_HAS_CPU_XLR
2024	bool
2025
2026config SYS_HAS_CPU_XLP
2027	bool
2028
2029#
2030# CPU may reorder R->R, R->W, W->R, W->W
2031# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2032#
2033config WEAK_ORDERING
2034	bool
2035
2036#
2037# CPU may reorder reads and writes beyond LL/SC
2038# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2039#
2040config WEAK_REORDERING_BEYOND_LLSC
2041	bool
2042endmenu
2043
2044#
2045# These two indicate any level of the MIPS32 and MIPS64 architecture
2046#
2047config CPU_MIPS32
2048	bool
2049	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2050
2051config CPU_MIPS64
2052	bool
2053	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2054
2055#
2056# These indicate the revision of the architecture
2057#
2058config CPU_MIPSR1
2059	bool
2060	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2061
2062config CPU_MIPSR2
2063	bool
2064	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2065	select CPU_HAS_RIXI
2066	select MIPS_SPRAM
2067
2068config CPU_MIPSR6
2069	bool
2070	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2071	select CPU_HAS_RIXI
2072	select HAVE_ARCH_BITREVERSE
2073	select MIPS_ASID_BITS_VARIABLE
2074	select MIPS_CRC_SUPPORT
2075	select MIPS_SPRAM
2076
2077config TARGET_ISA_REV
2078	int
2079	default 1 if CPU_MIPSR1
2080	default 2 if CPU_MIPSR2
2081	default 6 if CPU_MIPSR6
2082	default 0
2083	help
2084	  Reflects the ISA revision being targeted by the kernel build. This
2085	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2086
2087config EVA
2088	bool
2089
2090config XPA
2091	bool
2092
2093config SYS_SUPPORTS_32BIT_KERNEL
2094	bool
2095config SYS_SUPPORTS_64BIT_KERNEL
2096	bool
2097config CPU_SUPPORTS_32BIT_KERNEL
2098	bool
2099config CPU_SUPPORTS_64BIT_KERNEL
2100	bool
2101config CPU_SUPPORTS_CPUFREQ
2102	bool
2103config CPU_SUPPORTS_ADDRWINCFG
2104	bool
2105config CPU_SUPPORTS_HUGEPAGES
2106	bool
2107config CPU_SUPPORTS_UNCACHED_ACCELERATED
2108	bool
2109config MIPS_PGD_C0_CONTEXT
2110	bool
2111	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2112
2113#
2114# Set to y for ptrace access to watch registers.
2115#
2116config HARDWARE_WATCHPOINTS
2117       bool
2118       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2119
2120menu "Kernel type"
2121
2122choice
2123	prompt "Kernel code model"
2124	help
2125	  You should only select this option if you have a workload that
2126	  actually benefits from 64-bit processing or if your machine has
2127	  large memory.  You will only be presented a single option in this
2128	  menu if your system does not support both 32-bit and 64-bit kernels.
2129
2130config 32BIT
2131	bool "32-bit kernel"
2132	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2133	select TRAD_SIGNALS
2134	help
2135	  Select this option if you want to build a 32-bit kernel.
2136
2137config 64BIT
2138	bool "64-bit kernel"
2139	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2140	help
2141	  Select this option if you want to build a 64-bit kernel.
2142
2143endchoice
2144
2145config KVM_GUEST
2146	bool "KVM Guest Kernel"
2147	depends on BROKEN_ON_SMP
2148	help
2149	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2150	  mode.
2151
2152config KVM_GUEST_TIMER_FREQ
2153	int "Count/Compare Timer Frequency (MHz)"
2154	depends on KVM_GUEST
2155	default 100
2156	help
2157	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2158	  emulation when determining guest CPU Frequency. Instead, the guest's
2159	  timer frequency is specified directly.
2160
2161config MIPS_VA_BITS_48
2162	bool "48 bits virtual memory"
2163	depends on 64BIT
2164	help
2165	  Support a maximum at least 48 bits of application virtual
2166	  memory.  Default is 40 bits or less, depending on the CPU.
2167	  For page sizes 16k and above, this option results in a small
2168	  memory overhead for page tables.  For 4k page size, a fourth
2169	  level of page tables is added which imposes both a memory
2170	  overhead as well as slower TLB fault handling.
2171
2172	  If unsure, say N.
2173
2174choice
2175	prompt "Kernel page size"
2176	default PAGE_SIZE_4KB
2177
2178config PAGE_SIZE_4KB
2179	bool "4kB"
2180	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2181	help
2182	 This option select the standard 4kB Linux page size.  On some
2183	 R3000-family processors this is the only available page size.  Using
2184	 4kB page size will minimize memory consumption and is therefore
2185	 recommended for low memory systems.
2186
2187config PAGE_SIZE_8KB
2188	bool "8kB"
2189	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2190	depends on !MIPS_VA_BITS_48
2191	help
2192	  Using 8kB page size will result in higher performance kernel at
2193	  the price of higher memory consumption.  This option is available
2194	  only on R8000 and cnMIPS processors.  Note that you will need a
2195	  suitable Linux distribution to support this.
2196
2197config PAGE_SIZE_16KB
2198	bool "16kB"
2199	depends on !CPU_R3000 && !CPU_TX39XX
2200	help
2201	  Using 16kB page size will result in higher performance kernel at
2202	  the price of higher memory consumption.  This option is available on
2203	  all non-R3000 family processors.  Note that you will need a suitable
2204	  Linux distribution to support this.
2205
2206config PAGE_SIZE_32KB
2207	bool "32kB"
2208	depends on CPU_CAVIUM_OCTEON
2209	depends on !MIPS_VA_BITS_48
2210	help
2211	  Using 32kB page size will result in higher performance kernel at
2212	  the price of higher memory consumption.  This option is available
2213	  only on cnMIPS cores.  Note that you will need a suitable Linux
2214	  distribution to support this.
2215
2216config PAGE_SIZE_64KB
2217	bool "64kB"
2218	depends on !CPU_R3000 && !CPU_TX39XX
2219	help
2220	  Using 64kB page size will result in higher performance kernel at
2221	  the price of higher memory consumption.  This option is available on
2222	  all non-R3000 family processor.  Not that at the time of this
2223	  writing this option is still high experimental.
2224
2225endchoice
2226
2227config FORCE_MAX_ZONEORDER
2228	int "Maximum zone order"
2229	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2230	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2231	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2232	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2233	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2234	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2235	range 11 64
2236	default "11"
2237	help
2238	  The kernel memory allocator divides physically contiguous memory
2239	  blocks into "zones", where each zone is a power of two number of
2240	  pages.  This option selects the largest power of two that the kernel
2241	  keeps in the memory allocator.  If you need to allocate very large
2242	  blocks of physically contiguous memory, then you may need to
2243	  increase this value.
2244
2245	  This config option is actually maximum order plus one. For example,
2246	  a value of 11 means that the largest free memory block is 2^10 pages.
2247
2248	  The page size is not necessarily 4KB.  Keep this in mind
2249	  when choosing a value for this option.
2250
2251config BOARD_SCACHE
2252	bool
2253
2254config IP22_CPU_SCACHE
2255	bool
2256	select BOARD_SCACHE
2257
2258#
2259# Support for a MIPS32 / MIPS64 style S-caches
2260#
2261config MIPS_CPU_SCACHE
2262	bool
2263	select BOARD_SCACHE
2264
2265config R5000_CPU_SCACHE
2266	bool
2267	select BOARD_SCACHE
2268
2269config RM7000_CPU_SCACHE
2270	bool
2271	select BOARD_SCACHE
2272
2273config SIBYTE_DMA_PAGEOPS
2274	bool "Use DMA to clear/copy pages"
2275	depends on CPU_SB1
2276	help
2277	  Instead of using the CPU to zero and copy pages, use a Data Mover
2278	  channel.  These DMA channels are otherwise unused by the standard
2279	  SiByte Linux port.  Seems to give a small performance benefit.
2280
2281config CPU_HAS_PREFETCH
2282	bool
2283
2284config CPU_GENERIC_DUMP_TLB
2285	bool
2286	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2287
2288config MIPS_FP_SUPPORT
2289	bool "Floating Point support" if EXPERT
2290	default y
2291	help
2292	  Select y to include support for floating point in the kernel
2293	  including initialization of FPU hardware, FP context save & restore
2294	  and emulation of an FPU where necessary. Without this support any
2295	  userland program attempting to use floating point instructions will
2296	  receive a SIGILL.
2297
2298	  If you know that your userland will not attempt to use floating point
2299	  instructions then you can say n here to shrink the kernel a little.
2300
2301	  If unsure, say y.
2302
2303config CPU_R2300_FPU
2304	bool
2305	depends on MIPS_FP_SUPPORT
2306	default y if CPU_R3000 || CPU_TX39XX
2307
2308config CPU_R4K_FPU
2309	bool
2310	depends on MIPS_FP_SUPPORT
2311	default y if !CPU_R2300_FPU
2312
2313config CPU_R4K_CACHE_TLB
2314	bool
2315	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2316
2317config MIPS_MT_SMP
2318	bool "MIPS MT SMP support (1 TC on each available VPE)"
2319	default y
2320	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2321	select CPU_MIPSR2_IRQ_VI
2322	select CPU_MIPSR2_IRQ_EI
2323	select SYNC_R4K
2324	select MIPS_MT
2325	select SMP
2326	select SMP_UP
2327	select SYS_SUPPORTS_SMP
2328	select SYS_SUPPORTS_SCHED_SMT
2329	select MIPS_PERF_SHARED_TC_COUNTERS
2330	help
2331	  This is a kernel model which is known as SMVP. This is supported
2332	  on cores with the MT ASE and uses the available VPEs to implement
2333	  virtual processors which supports SMP. This is equivalent to the
2334	  Intel Hyperthreading feature. For further information go to
2335	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2336
2337config MIPS_MT
2338	bool
2339
2340config SCHED_SMT
2341	bool "SMT (multithreading) scheduler support"
2342	depends on SYS_SUPPORTS_SCHED_SMT
2343	default n
2344	help
2345	  SMT scheduler support improves the CPU scheduler's decision making
2346	  when dealing with MIPS MT enabled cores at a cost of slightly
2347	  increased overhead in some places. If unsure say N here.
2348
2349config SYS_SUPPORTS_SCHED_SMT
2350	bool
2351
2352config SYS_SUPPORTS_MULTITHREADING
2353	bool
2354
2355config MIPS_MT_FPAFF
2356	bool "Dynamic FPU affinity for FP-intensive threads"
2357	default y
2358	depends on MIPS_MT_SMP
2359
2360config MIPSR2_TO_R6_EMULATOR
2361	bool "MIPS R2-to-R6 emulator"
2362	depends on CPU_MIPSR6
2363	depends on MIPS_FP_SUPPORT
2364	default y
2365	help
2366	  Choose this option if you want to run non-R6 MIPS userland code.
2367	  Even if you say 'Y' here, the emulator will still be disabled by
2368	  default. You can enable it using the 'mipsr2emu' kernel option.
2369	  The only reason this is a build-time option is to save ~14K from the
2370	  final kernel image.
2371
2372config SYS_SUPPORTS_VPE_LOADER
2373	bool
2374	depends on SYS_SUPPORTS_MULTITHREADING
2375	help
2376	  Indicates that the platform supports the VPE loader, and provides
2377	  physical_memsize.
2378
2379config MIPS_VPE_LOADER
2380	bool "VPE loader support."
2381	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2382	select CPU_MIPSR2_IRQ_VI
2383	select CPU_MIPSR2_IRQ_EI
2384	select MIPS_MT
2385	help
2386	  Includes a loader for loading an elf relocatable object
2387	  onto another VPE and running it.
2388
2389config MIPS_VPE_LOADER_CMP
2390	bool
2391	default "y"
2392	depends on MIPS_VPE_LOADER && MIPS_CMP
2393
2394config MIPS_VPE_LOADER_MT
2395	bool
2396	default "y"
2397	depends on MIPS_VPE_LOADER && !MIPS_CMP
2398
2399config MIPS_VPE_LOADER_TOM
2400	bool "Load VPE program into memory hidden from linux"
2401	depends on MIPS_VPE_LOADER
2402	default y
2403	help
2404	  The loader can use memory that is present but has been hidden from
2405	  Linux using the kernel command line option "mem=xxMB". It's up to
2406	  you to ensure the amount you put in the option and the space your
2407	  program requires is less or equal to the amount physically present.
2408
2409config MIPS_VPE_APSP_API
2410	bool "Enable support for AP/SP API (RTLX)"
2411	depends on MIPS_VPE_LOADER
2412
2413config MIPS_VPE_APSP_API_CMP
2414	bool
2415	default "y"
2416	depends on MIPS_VPE_APSP_API && MIPS_CMP
2417
2418config MIPS_VPE_APSP_API_MT
2419	bool
2420	default "y"
2421	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2422
2423config MIPS_CMP
2424	bool "MIPS CMP framework support (DEPRECATED)"
2425	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2426	select SMP
2427	select SYNC_R4K
2428	select SYS_SUPPORTS_SMP
2429	select WEAK_ORDERING
2430	default n
2431	help
2432	  Select this if you are using a bootloader which implements the "CMP
2433	  framework" protocol (ie. YAMON) and want your kernel to make use of
2434	  its ability to start secondary CPUs.
2435
2436	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2437	  instead of this.
2438
2439config MIPS_CPS
2440	bool "MIPS Coherent Processing System support"
2441	depends on SYS_SUPPORTS_MIPS_CPS
2442	select MIPS_CM
2443	select MIPS_CPS_PM if HOTPLUG_CPU
2444	select SMP
2445	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2446	select SYS_SUPPORTS_HOTPLUG_CPU
2447	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2448	select SYS_SUPPORTS_SMP
2449	select WEAK_ORDERING
2450	help
2451	  Select this if you wish to run an SMP kernel across multiple cores
2452	  within a MIPS Coherent Processing System. When this option is
2453	  enabled the kernel will probe for other cores and boot them with
2454	  no external assistance. It is safe to enable this when hardware
2455	  support is unavailable.
2456
2457config MIPS_CPS_PM
2458	depends on MIPS_CPS
2459	bool
2460
2461config MIPS_CM
2462	bool
2463	select MIPS_CPC
2464
2465config MIPS_CPC
2466	bool
2467
2468config SB1_PASS_2_WORKAROUNDS
2469	bool
2470	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2471	default y
2472
2473config SB1_PASS_2_1_WORKAROUNDS
2474	bool
2475	depends on CPU_SB1 && CPU_SB1_PASS_2
2476	default y
2477
2478
2479choice
2480	prompt "SmartMIPS or microMIPS ASE support"
2481
2482config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2483	bool "None"
2484	help
2485	  Select this if you want neither microMIPS nor SmartMIPS support
2486
2487config CPU_HAS_SMARTMIPS
2488	depends on SYS_SUPPORTS_SMARTMIPS
2489	bool "SmartMIPS"
2490	help
2491	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2492	  increased security at both hardware and software level for
2493	  smartcards.  Enabling this option will allow proper use of the
2494	  SmartMIPS instructions by Linux applications.  However a kernel with
2495	  this option will not work on a MIPS core without SmartMIPS core.  If
2496	  you don't know you probably don't have SmartMIPS and should say N
2497	  here.
2498
2499config CPU_MICROMIPS
2500	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2501	bool "microMIPS"
2502	help
2503	  When this option is enabled the kernel will be built using the
2504	  microMIPS ISA
2505
2506endchoice
2507
2508config CPU_HAS_MSA
2509	bool "Support for the MIPS SIMD Architecture"
2510	depends on CPU_SUPPORTS_MSA
2511	depends on MIPS_FP_SUPPORT
2512	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2513	help
2514	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2515	  and a set of SIMD instructions to operate on them. When this option
2516	  is enabled the kernel will support allocating & switching MSA
2517	  vector register contexts. If you know that your kernel will only be
2518	  running on CPUs which do not support MSA or that your userland will
2519	  not be making use of it then you may wish to say N here to reduce
2520	  the size & complexity of your kernel.
2521
2522	  If unsure, say Y.
2523
2524config CPU_HAS_WB
2525	bool
2526
2527config XKS01
2528	bool
2529
2530config CPU_HAS_RIXI
2531	bool
2532
2533config CPU_HAS_LOAD_STORE_LR
2534	bool
2535	help
2536	  CPU has support for unaligned load and store instructions:
2537	  LWL, LWR, SWL, SWR (Load/store word left/right).
2538	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2539
2540#
2541# Vectored interrupt mode is an R2 feature
2542#
2543config CPU_MIPSR2_IRQ_VI
2544	bool
2545
2546#
2547# Extended interrupt mode is an R2 feature
2548#
2549config CPU_MIPSR2_IRQ_EI
2550	bool
2551
2552config CPU_HAS_SYNC
2553	bool
2554	depends on !CPU_R3000
2555	default y
2556
2557#
2558# CPU non-features
2559#
2560config CPU_DADDI_WORKAROUNDS
2561	bool
2562
2563config CPU_R4000_WORKAROUNDS
2564	bool
2565	select CPU_R4400_WORKAROUNDS
2566
2567config CPU_R4400_WORKAROUNDS
2568	bool
2569
2570config MIPS_ASID_SHIFT
2571	int
2572	default 6 if CPU_R3000 || CPU_TX39XX
2573	default 4 if CPU_R8000
2574	default 0
2575
2576config MIPS_ASID_BITS
2577	int
2578	default 0 if MIPS_ASID_BITS_VARIABLE
2579	default 6 if CPU_R3000 || CPU_TX39XX
2580	default 8
2581
2582config MIPS_ASID_BITS_VARIABLE
2583	bool
2584
2585config MIPS_CRC_SUPPORT
2586	bool
2587
2588#
2589# - Highmem only makes sense for the 32-bit kernel.
2590# - The current highmem code will only work properly on physically indexed
2591#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2592#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2593#   moment we protect the user and offer the highmem option only on machines
2594#   where it's known to be safe.  This will not offer highmem on a few systems
2595#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2596#   indexed CPUs but we're playing safe.
2597# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2598#   know they might have memory configurations that could make use of highmem
2599#   support.
2600#
2601config HIGHMEM
2602	bool "High Memory Support"
2603	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2604
2605config CPU_SUPPORTS_HIGHMEM
2606	bool
2607
2608config SYS_SUPPORTS_HIGHMEM
2609	bool
2610
2611config SYS_SUPPORTS_SMARTMIPS
2612	bool
2613
2614config SYS_SUPPORTS_MICROMIPS
2615	bool
2616
2617config SYS_SUPPORTS_MIPS16
2618	bool
2619	help
2620	  This option must be set if a kernel might be executed on a MIPS16-
2621	  enabled CPU even if MIPS16 is not actually being used.  In other
2622	  words, it makes the kernel MIPS16-tolerant.
2623
2624config CPU_SUPPORTS_MSA
2625	bool
2626
2627config ARCH_FLATMEM_ENABLE
2628	def_bool y
2629	depends on !NUMA && !CPU_LOONGSON2
2630
2631config ARCH_DISCONTIGMEM_ENABLE
2632	bool
2633	default y if SGI_IP27
2634	help
2635	  Say Y to support efficient handling of discontiguous physical memory,
2636	  for architectures which are either NUMA (Non-Uniform Memory Access)
2637	  or have huge holes in the physical address space for other reasons.
2638	  See <file:Documentation/vm/numa.rst> for more.
2639
2640config ARCH_SPARSEMEM_ENABLE
2641	bool
2642	select SPARSEMEM_STATIC
2643
2644config NUMA
2645	bool "NUMA Support"
2646	depends on SYS_SUPPORTS_NUMA
2647	help
2648	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2649	  Access).  This option improves performance on systems with more
2650	  than two nodes; on two node systems it is generally better to
2651	  leave it disabled; on single node systems disable this option
2652	  disabled.
2653
2654config SYS_SUPPORTS_NUMA
2655	bool
2656
2657config RELOCATABLE
2658	bool "Relocatable kernel"
2659	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2660	help
2661	  This builds a kernel image that retains relocation information
2662	  so it can be loaded someplace besides the default 1MB.
2663	  The relocations make the kernel binary about 15% larger,
2664	  but are discarded at runtime
2665
2666config RELOCATION_TABLE_SIZE
2667	hex "Relocation table size"
2668	depends on RELOCATABLE
2669	range 0x0 0x01000000
2670	default "0x00100000"
2671	---help---
2672	  A table of relocation data will be appended to the kernel binary
2673	  and parsed at boot to fix up the relocated kernel.
2674
2675	  This option allows the amount of space reserved for the table to be
2676	  adjusted, although the default of 1Mb should be ok in most cases.
2677
2678	  The build will fail and a valid size suggested if this is too small.
2679
2680	  If unsure, leave at the default value.
2681
2682config RANDOMIZE_BASE
2683	bool "Randomize the address of the kernel image"
2684	depends on RELOCATABLE
2685	---help---
2686	   Randomizes the physical and virtual address at which the
2687	   kernel image is loaded, as a security feature that
2688	   deters exploit attempts relying on knowledge of the location
2689	   of kernel internals.
2690
2691	   Entropy is generated using any coprocessor 0 registers available.
2692
2693	   The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2694
2695	   If unsure, say N.
2696
2697config RANDOMIZE_BASE_MAX_OFFSET
2698	hex "Maximum kASLR offset" if EXPERT
2699	depends on RANDOMIZE_BASE
2700	range 0x0 0x40000000 if EVA || 64BIT
2701	range 0x0 0x08000000
2702	default "0x01000000"
2703	---help---
2704	  When kASLR is active, this provides the maximum offset that will
2705	  be applied to the kernel image. It should be set according to the
2706	  amount of physical RAM available in the target system minus
2707	  PHYSICAL_START and must be a power of 2.
2708
2709	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2710	  EVA or 64-bit. The default is 16Mb.
2711
2712config NODES_SHIFT
2713	int
2714	default "6"
2715	depends on NEED_MULTIPLE_NODES
2716
2717config HW_PERF_EVENTS
2718	bool "Enable hardware performance counter support for perf events"
2719	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2720	default y
2721	help
2722	  Enable hardware performance counter support for perf events. If
2723	  disabled, perf events will use software events only.
2724
2725config SMP
2726	bool "Multi-Processing support"
2727	depends on SYS_SUPPORTS_SMP
2728	help
2729	  This enables support for systems with more than one CPU. If you have
2730	  a system with only one CPU, say N. If you have a system with more
2731	  than one CPU, say Y.
2732
2733	  If you say N here, the kernel will run on uni- and multiprocessor
2734	  machines, but will use only one CPU of a multiprocessor machine. If
2735	  you say Y here, the kernel will run on many, but not all,
2736	  uniprocessor machines. On a uniprocessor machine, the kernel
2737	  will run faster if you say N here.
2738
2739	  People using multiprocessor machines who say Y here should also say
2740	  Y to "Enhanced Real Time Clock Support", below.
2741
2742	  See also the SMP-HOWTO available at
2743	  <http://www.tldp.org/docs.html#howto>.
2744
2745	  If you don't know what to do here, say N.
2746
2747config HOTPLUG_CPU
2748	bool "Support for hot-pluggable CPUs"
2749	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2750	help
2751	  Say Y here to allow turning CPUs off and on. CPUs can be
2752	  controlled through /sys/devices/system/cpu.
2753	  (Note: power management support will enable this option
2754	    automatically on SMP systems. )
2755	  Say N if you want to disable CPU hotplug.
2756
2757config SMP_UP
2758	bool
2759
2760config SYS_SUPPORTS_MIPS_CMP
2761	bool
2762
2763config SYS_SUPPORTS_MIPS_CPS
2764	bool
2765
2766config SYS_SUPPORTS_SMP
2767	bool
2768
2769config NR_CPUS_DEFAULT_4
2770	bool
2771
2772config NR_CPUS_DEFAULT_8
2773	bool
2774
2775config NR_CPUS_DEFAULT_16
2776	bool
2777
2778config NR_CPUS_DEFAULT_32
2779	bool
2780
2781config NR_CPUS_DEFAULT_64
2782	bool
2783
2784config NR_CPUS
2785	int "Maximum number of CPUs (2-256)"
2786	range 2 256
2787	depends on SMP
2788	default "4" if NR_CPUS_DEFAULT_4
2789	default "8" if NR_CPUS_DEFAULT_8
2790	default "16" if NR_CPUS_DEFAULT_16
2791	default "32" if NR_CPUS_DEFAULT_32
2792	default "64" if NR_CPUS_DEFAULT_64
2793	help
2794	  This allows you to specify the maximum number of CPUs which this
2795	  kernel will support.  The maximum supported value is 32 for 32-bit
2796	  kernel and 64 for 64-bit kernels; the minimum value which makes
2797	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2798	  and 2 for all others.
2799
2800	  This is purely to save memory - each supported CPU adds
2801	  approximately eight kilobytes to the kernel image.  For best
2802	  performance should round up your number of processors to the next
2803	  power of two.
2804
2805config MIPS_PERF_SHARED_TC_COUNTERS
2806	bool
2807
2808config MIPS_NR_CPU_NR_MAP_1024
2809	bool
2810
2811config MIPS_NR_CPU_NR_MAP
2812	int
2813	depends on SMP
2814	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2815	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2816
2817#
2818# Timer Interrupt Frequency Configuration
2819#
2820
2821choice
2822	prompt "Timer frequency"
2823	default HZ_250
2824	help
2825	 Allows the configuration of the timer frequency.
2826
2827	config HZ_24
2828		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2829
2830	config HZ_48
2831		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2832
2833	config HZ_100
2834		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2835
2836	config HZ_128
2837		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2838
2839	config HZ_250
2840		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2841
2842	config HZ_256
2843		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2844
2845	config HZ_1000
2846		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2847
2848	config HZ_1024
2849		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2850
2851endchoice
2852
2853config SYS_SUPPORTS_24HZ
2854	bool
2855
2856config SYS_SUPPORTS_48HZ
2857	bool
2858
2859config SYS_SUPPORTS_100HZ
2860	bool
2861
2862config SYS_SUPPORTS_128HZ
2863	bool
2864
2865config SYS_SUPPORTS_250HZ
2866	bool
2867
2868config SYS_SUPPORTS_256HZ
2869	bool
2870
2871config SYS_SUPPORTS_1000HZ
2872	bool
2873
2874config SYS_SUPPORTS_1024HZ
2875	bool
2876
2877config SYS_SUPPORTS_ARBIT_HZ
2878	bool
2879	default y if !SYS_SUPPORTS_24HZ && \
2880		     !SYS_SUPPORTS_48HZ && \
2881		     !SYS_SUPPORTS_100HZ && \
2882		     !SYS_SUPPORTS_128HZ && \
2883		     !SYS_SUPPORTS_250HZ && \
2884		     !SYS_SUPPORTS_256HZ && \
2885		     !SYS_SUPPORTS_1000HZ && \
2886		     !SYS_SUPPORTS_1024HZ
2887
2888config HZ
2889	int
2890	default 24 if HZ_24
2891	default 48 if HZ_48
2892	default 100 if HZ_100
2893	default 128 if HZ_128
2894	default 250 if HZ_250
2895	default 256 if HZ_256
2896	default 1000 if HZ_1000
2897	default 1024 if HZ_1024
2898
2899config SCHED_HRTICK
2900	def_bool HIGH_RES_TIMERS
2901
2902config KEXEC
2903	bool "Kexec system call"
2904	select KEXEC_CORE
2905	help
2906	  kexec is a system call that implements the ability to shutdown your
2907	  current kernel, and to start another kernel.  It is like a reboot
2908	  but it is independent of the system firmware.   And like a reboot
2909	  you can start any kernel with it, not just Linux.
2910
2911	  The name comes from the similarity to the exec system call.
2912
2913	  It is an ongoing process to be certain the hardware in a machine
2914	  is properly shutdown, so do not be surprised if this code does not
2915	  initially work for you.  As of this writing the exact hardware
2916	  interface is strongly in flux, so no good recommendation can be
2917	  made.
2918
2919config CRASH_DUMP
2920	bool "Kernel crash dumps"
2921	help
2922	  Generate crash dump after being started by kexec.
2923	  This should be normally only set in special crash dump kernels
2924	  which are loaded in the main kernel with kexec-tools into
2925	  a specially reserved region and then later executed after
2926	  a crash by kdump/kexec. The crash dump kernel must be compiled
2927	  to a memory address not used by the main kernel or firmware using
2928	  PHYSICAL_START.
2929
2930config PHYSICAL_START
2931	hex "Physical address where the kernel is loaded"
2932	default "0xffffffff84000000"
2933	depends on CRASH_DUMP
2934	help
2935	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2936	  If you plan to use kernel for capturing the crash dump change
2937	  this value to start of the reserved region (the "X" value as
2938	  specified in the "crashkernel=YM@XM" command line boot parameter
2939	  passed to the panic-ed kernel).
2940
2941config SECCOMP
2942	bool "Enable seccomp to safely compute untrusted bytecode"
2943	depends on PROC_FS
2944	default y
2945	help
2946	  This kernel feature is useful for number crunching applications
2947	  that may need to compute untrusted bytecode during their
2948	  execution. By using pipes or other transports made available to
2949	  the process as file descriptors supporting the read/write
2950	  syscalls, it's possible to isolate those applications in
2951	  their own address space using seccomp. Once seccomp is
2952	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2953	  and the task is only allowed to execute a few safe syscalls
2954	  defined by each seccomp mode.
2955
2956	  If unsure, say Y. Only embedded should say N here.
2957
2958config MIPS_O32_FP64_SUPPORT
2959	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2960	depends on 32BIT || MIPS32_O32
2961	help
2962	  When this is enabled, the kernel will support use of 64-bit floating
2963	  point registers with binaries using the O32 ABI along with the
2964	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2965	  32-bit MIPS systems this support is at the cost of increasing the
2966	  size and complexity of the compiled FPU emulator. Thus if you are
2967	  running a MIPS32 system and know that none of your userland binaries
2968	  will require 64-bit floating point, you may wish to reduce the size
2969	  of your kernel & potentially improve FP emulation performance by
2970	  saying N here.
2971
2972	  Although binutils currently supports use of this flag the details
2973	  concerning its effect upon the O32 ABI in userland are still being
2974	  worked on. In order to avoid userland becoming dependant upon current
2975	  behaviour before the details have been finalised, this option should
2976	  be considered experimental and only enabled by those working upon
2977	  said details.
2978
2979	  If unsure, say N.
2980
2981config USE_OF
2982	bool
2983	select OF
2984	select OF_EARLY_FLATTREE
2985	select IRQ_DOMAIN
2986
2987config UHI_BOOT
2988	bool
2989
2990config BUILTIN_DTB
2991	bool
2992
2993choice
2994	prompt "Kernel appended dtb support" if USE_OF
2995	default MIPS_NO_APPENDED_DTB
2996
2997	config MIPS_NO_APPENDED_DTB
2998		bool "None"
2999		help
3000		  Do not enable appended dtb support.
3001
3002	config MIPS_ELF_APPENDED_DTB
3003		bool "vmlinux"
3004		help
3005		  With this option, the boot code will look for a device tree binary
3006		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3007		  it is empty and the DTB can be appended using binutils command
3008		  objcopy:
3009
3010		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3011
3012		  This is meant as a backward compatiblity 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	config MIPS_RAW_APPENDED_DTB
3017		bool "vmlinux.bin or vmlinuz.bin"
3018		help
3019		  With this option, the boot code will look for a device tree binary
3020		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3021		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3022
3023		  This is meant as a backward compatibility convenience for those
3024		  systems with a bootloader that can't be upgraded to accommodate
3025		  the documented boot protocol using a device tree.
3026
3027		  Beware that there is very little in terms of protection against
3028		  this option being confused by leftover garbage in memory that might
3029		  look like a DTB header after a reboot if no actual DTB is appended
3030		  to vmlinux.bin.  Do not leave this option active in a production kernel
3031		  if you don't intend to always append a DTB.
3032endchoice
3033
3034choice
3035	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3036	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3037					 !MIPS_MALTA && \
3038					 !CAVIUM_OCTEON_SOC
3039	default MIPS_CMDLINE_FROM_BOOTLOADER
3040
3041	config MIPS_CMDLINE_FROM_DTB
3042		depends on USE_OF
3043		bool "Dtb kernel arguments if available"
3044
3045	config MIPS_CMDLINE_DTB_EXTEND
3046		depends on USE_OF
3047		bool "Extend dtb kernel arguments with bootloader arguments"
3048
3049	config MIPS_CMDLINE_FROM_BOOTLOADER
3050		bool "Bootloader kernel arguments if available"
3051
3052	config MIPS_CMDLINE_BUILTIN_EXTEND
3053		depends on CMDLINE_BOOL
3054		bool "Extend builtin kernel arguments with bootloader arguments"
3055endchoice
3056
3057endmenu
3058
3059config LOCKDEP_SUPPORT
3060	bool
3061	default y
3062
3063config STACKTRACE_SUPPORT
3064	bool
3065	default y
3066
3067config HAVE_LATENCYTOP_SUPPORT
3068	bool
3069	default y
3070
3071config PGTABLE_LEVELS
3072	int
3073	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3074	default 3 if 64BIT && !PAGE_SIZE_64KB
3075	default 2
3076
3077config MIPS_AUTO_PFN_OFFSET
3078	bool
3079
3080menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3081
3082config PCI_DRIVERS_GENERIC
3083	select PCI_DOMAINS_GENERIC if PCI
3084	bool
3085
3086config PCI_DRIVERS_LEGACY
3087	def_bool !PCI_DRIVERS_GENERIC
3088	select NO_GENERIC_PCI_IOPORT_MAP
3089	select PCI_DOMAINS if PCI
3090
3091#
3092# ISA support is now enabled via select.  Too many systems still have the one
3093# or other ISA chip on the board that users don't know about so don't expect
3094# users to choose the right thing ...
3095#
3096config ISA
3097	bool
3098
3099config TC
3100	bool "TURBOchannel support"
3101	depends on MACH_DECSTATION
3102	help
3103	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3104	  processors.  TURBOchannel programming specifications are available
3105	  at:
3106	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3107	  and:
3108	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3109	  Linux driver support status is documented at:
3110	  <http://www.linux-mips.org/wiki/DECstation>
3111
3112config MMU
3113	bool
3114	default y
3115
3116config ARCH_MMAP_RND_BITS_MIN
3117	default 12 if 64BIT
3118	default 8
3119
3120config ARCH_MMAP_RND_BITS_MAX
3121	default 18 if 64BIT
3122	default 15
3123
3124config ARCH_MMAP_RND_COMPAT_BITS_MIN
3125       default 8
3126
3127config ARCH_MMAP_RND_COMPAT_BITS_MAX
3128       default 15
3129
3130config I8253
3131	bool
3132	select CLKSRC_I8253
3133	select CLKEVT_I8253
3134	select MIPS_EXTERNAL_TIMER
3135
3136config ZONE_DMA
3137	bool
3138
3139config ZONE_DMA32
3140	bool
3141
3142endmenu
3143
3144config TRAD_SIGNALS
3145	bool
3146
3147config MIPS32_COMPAT
3148	bool
3149
3150config COMPAT
3151	bool
3152
3153config SYSVIPC_COMPAT
3154	bool
3155
3156config MIPS32_O32
3157	bool "Kernel support for o32 binaries"
3158	depends on 64BIT
3159	select ARCH_WANT_OLD_COMPAT_IPC
3160	select COMPAT
3161	select MIPS32_COMPAT
3162	select SYSVIPC_COMPAT if SYSVIPC
3163	help
3164	  Select this option if you want to run o32 binaries.  These are pure
3165	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3166	  existing binaries are in this format.
3167
3168	  If unsure, say Y.
3169
3170config MIPS32_N32
3171	bool "Kernel support for n32 binaries"
3172	depends on 64BIT
3173	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3174	select COMPAT
3175	select MIPS32_COMPAT
3176	select SYSVIPC_COMPAT if SYSVIPC
3177	help
3178	  Select this option if you want to run n32 binaries.  These are
3179	  64-bit binaries using 32-bit quantities for addressing and certain
3180	  data that would normally be 64-bit.  They are used in special
3181	  cases.
3182
3183	  If unsure, say N.
3184
3185config BINFMT_ELF32
3186	bool
3187	default y if MIPS32_O32 || MIPS32_N32
3188	select ELFCORE
3189
3190menu "Power management options"
3191
3192config ARCH_HIBERNATION_POSSIBLE
3193	def_bool y
3194	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3195
3196config ARCH_SUSPEND_POSSIBLE
3197	def_bool y
3198	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3199
3200source "kernel/power/Kconfig"
3201
3202endmenu
3203
3204config MIPS_EXTERNAL_TIMER
3205	bool
3206
3207menu "CPU Power Management"
3208
3209if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3210source "drivers/cpufreq/Kconfig"
3211endif
3212
3213source "drivers/cpuidle/Kconfig"
3214
3215endmenu
3216
3217source "drivers/firmware/Kconfig"
3218
3219source "arch/mips/kvm/Kconfig"
3220