xref: /linux/arch/mips/Kconfig (revision ebf68996de0ab250c5d520eb2291ab65643e9a1e)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_32BIT_OFF_T if !64BIT
6	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7	select ARCH_CLOCKSOURCE_DATA
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_EBPF_JIT if (!CPU_MICROMIPS)
47	select HAVE_CONTEXT_TRACKING
48	select HAVE_COPY_THREAD_TLS
49	select HAVE_C_RECORDMCOUNT
50	select HAVE_DEBUG_KMEMLEAK
51	select HAVE_DEBUG_STACKOVERFLOW
52	select HAVE_DMA_CONTIGUOUS
53	select HAVE_DYNAMIC_FTRACE
54	select HAVE_EXIT_THREAD
55	select HAVE_FTRACE_MCOUNT_RECORD
56	select HAVE_FUNCTION_GRAPH_TRACER
57	select HAVE_FUNCTION_TRACER
58	select HAVE_IDE
59	select HAVE_IOREMAP_PROT
60	select HAVE_IRQ_EXIT_ON_IRQ_STACK
61	select HAVE_IRQ_TIME_ACCOUNTING
62	select HAVE_KPROBES
63	select HAVE_KRETPROBES
64	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
65	select HAVE_MEMBLOCK_NODE_MAP
66	select HAVE_MOD_ARCH_SPECIFIC
67	select HAVE_NMI
68	select HAVE_OPROFILE
69	select HAVE_PERF_EVENTS
70	select HAVE_REGS_AND_STACK_ACCESS_API
71	select HAVE_RSEQ
72	select HAVE_STACKPROTECTOR
73	select HAVE_SYSCALL_TRACEPOINTS
74	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
75	select IRQ_FORCED_THREADING
76	select ISA if EISA
77	select MODULES_USE_ELF_RELA if MODULES && 64BIT
78	select MODULES_USE_ELF_REL if MODULES
79	select PERF_USE_VMALLOC
80	select RTC_LIB
81	select SYSCTL_EXCEPTION_TRACE
82	select VIRT_TO_BUS
83
84menu "Machine selection"
85
86choice
87	prompt "System type"
88	default MIPS_GENERIC
89
90config MIPS_GENERIC
91	bool "Generic board-agnostic MIPS kernel"
92	select BOOT_RAW
93	select BUILTIN_DTB
94	select CEVT_R4K
95	select CLKSRC_MIPS_GIC
96	select COMMON_CLK
97	select CPU_MIPSR2_IRQ_VI
98	select CPU_MIPSR2_IRQ_EI
99	select CSRC_R4K
100	select DMA_PERDEV_COHERENT
101	select HAVE_PCI
102	select IRQ_MIPS_CPU
103	select LIBFDT
104	select MIPS_AUTO_PFN_OFFSET
105	select MIPS_CPU_SCACHE
106	select MIPS_GIC
107	select MIPS_L1_CACHE_SHIFT_7
108	select NO_EXCEPT_FILL
109	select PCI_DRIVERS_GENERIC
110	select PINCTRL
111	select SMP_UP if SMP
112	select SWAP_IO_SPACE
113	select SYS_HAS_CPU_MIPS32_R1
114	select SYS_HAS_CPU_MIPS32_R2
115	select SYS_HAS_CPU_MIPS32_R6
116	select SYS_HAS_CPU_MIPS64_R1
117	select SYS_HAS_CPU_MIPS64_R2
118	select SYS_HAS_CPU_MIPS64_R6
119	select SYS_SUPPORTS_32BIT_KERNEL
120	select SYS_SUPPORTS_64BIT_KERNEL
121	select SYS_SUPPORTS_BIG_ENDIAN
122	select SYS_SUPPORTS_HIGHMEM
123	select SYS_SUPPORTS_LITTLE_ENDIAN
124	select SYS_SUPPORTS_MICROMIPS
125	select SYS_SUPPORTS_MIPS_CPS
126	select SYS_SUPPORTS_MIPS16
127	select SYS_SUPPORTS_MULTITHREADING
128	select SYS_SUPPORTS_RELOCATABLE
129	select SYS_SUPPORTS_SMARTMIPS
130	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
131	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
132	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
133	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
134	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
135	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
136	select USE_OF
137	select UHI_BOOT
138	help
139	  Select this to build a kernel which aims to support multiple boards,
140	  generally using a flattened device tree passed from the bootloader
141	  using the boot protocol defined in the UHI (Unified Hosting
142	  Interface) specification.
143
144config MIPS_ALCHEMY
145	bool "Alchemy processor based machines"
146	select PHYS_ADDR_T_64BIT
147	select CEVT_R4K
148	select CSRC_R4K
149	select IRQ_MIPS_CPU
150	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
151	select SYS_HAS_CPU_MIPS32_R1
152	select SYS_SUPPORTS_32BIT_KERNEL
153	select SYS_SUPPORTS_APM_EMULATION
154	select GPIOLIB
155	select SYS_SUPPORTS_ZBOOT
156	select COMMON_CLK
157
158config AR7
159	bool "Texas Instruments AR7"
160	select BOOT_ELF32
161	select DMA_NONCOHERENT
162	select CEVT_R4K
163	select CSRC_R4K
164	select IRQ_MIPS_CPU
165	select NO_EXCEPT_FILL
166	select SWAP_IO_SPACE
167	select SYS_HAS_CPU_MIPS32_R1
168	select SYS_HAS_EARLY_PRINTK
169	select SYS_SUPPORTS_32BIT_KERNEL
170	select SYS_SUPPORTS_LITTLE_ENDIAN
171	select SYS_SUPPORTS_MIPS16
172	select SYS_SUPPORTS_ZBOOT_UART16550
173	select GPIOLIB
174	select VLYNQ
175	select HAVE_CLK
176	help
177	  Support for the Texas Instruments AR7 System-on-a-Chip
178	  family: TNETD7100, 7200 and 7300.
179
180config ATH25
181	bool "Atheros AR231x/AR531x SoC support"
182	select CEVT_R4K
183	select CSRC_R4K
184	select DMA_NONCOHERENT
185	select IRQ_MIPS_CPU
186	select IRQ_DOMAIN
187	select SYS_HAS_CPU_MIPS32_R1
188	select SYS_SUPPORTS_BIG_ENDIAN
189	select SYS_SUPPORTS_32BIT_KERNEL
190	select SYS_HAS_EARLY_PRINTK
191	help
192	  Support for Atheros AR231x and Atheros AR531x based boards
193
194config ATH79
195	bool "Atheros AR71XX/AR724X/AR913X based boards"
196	select ARCH_HAS_RESET_CONTROLLER
197	select BOOT_RAW
198	select CEVT_R4K
199	select CSRC_R4K
200	select DMA_NONCOHERENT
201	select GPIOLIB
202	select PINCTRL
203	select HAVE_CLK
204	select COMMON_CLK
205	select CLKDEV_LOOKUP
206	select IRQ_MIPS_CPU
207	select SYS_HAS_CPU_MIPS32_R2
208	select SYS_HAS_EARLY_PRINTK
209	select SYS_SUPPORTS_32BIT_KERNEL
210	select SYS_SUPPORTS_BIG_ENDIAN
211	select SYS_SUPPORTS_MIPS16
212	select SYS_SUPPORTS_ZBOOT_UART_PROM
213	select USE_OF
214	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
215	help
216	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
217
218config BMIPS_GENERIC
219	bool "Broadcom Generic BMIPS kernel"
220	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
221	select ARCH_HAS_PHYS_TO_DMA
222	select BOOT_RAW
223	select NO_EXCEPT_FILL
224	select USE_OF
225	select CEVT_R4K
226	select CSRC_R4K
227	select SYNC_R4K
228	select COMMON_CLK
229	select BCM6345_L1_IRQ
230	select BCM7038_L1_IRQ
231	select BCM7120_L2_IRQ
232	select BRCMSTB_L2_IRQ
233	select IRQ_MIPS_CPU
234	select DMA_NONCOHERENT
235	select SYS_SUPPORTS_32BIT_KERNEL
236	select SYS_SUPPORTS_LITTLE_ENDIAN
237	select SYS_SUPPORTS_BIG_ENDIAN
238	select SYS_SUPPORTS_HIGHMEM
239	select SYS_HAS_CPU_BMIPS32_3300
240	select SYS_HAS_CPU_BMIPS4350
241	select SYS_HAS_CPU_BMIPS4380
242	select SYS_HAS_CPU_BMIPS5000
243	select SWAP_IO_SPACE
244	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
245	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
246	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
247	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
248	select HARDIRQS_SW_RESEND
249	help
250	  Build a generic DT-based kernel image that boots on select
251	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
252	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
253	  must be set appropriately for your board.
254
255config BCM47XX
256	bool "Broadcom BCM47XX based boards"
257	select BOOT_RAW
258	select CEVT_R4K
259	select CSRC_R4K
260	select DMA_NONCOHERENT
261	select HAVE_PCI
262	select IRQ_MIPS_CPU
263	select SYS_HAS_CPU_MIPS32_R1
264	select NO_EXCEPT_FILL
265	select SYS_SUPPORTS_32BIT_KERNEL
266	select SYS_SUPPORTS_LITTLE_ENDIAN
267	select SYS_SUPPORTS_MIPS16
268	select SYS_SUPPORTS_ZBOOT
269	select SYS_HAS_EARLY_PRINTK
270	select USE_GENERIC_EARLY_PRINTK_8250
271	select GPIOLIB
272	select LEDS_GPIO_REGISTER
273	select BCM47XX_NVRAM
274	select BCM47XX_SPROM
275	select BCM47XX_SSB if !BCM47XX_BCMA
276	help
277	  Support for BCM47XX based boards
278
279config BCM63XX
280	bool "Broadcom BCM63XX based boards"
281	select BOOT_RAW
282	select CEVT_R4K
283	select CSRC_R4K
284	select SYNC_R4K
285	select DMA_NONCOHERENT
286	select IRQ_MIPS_CPU
287	select SYS_SUPPORTS_32BIT_KERNEL
288	select SYS_SUPPORTS_BIG_ENDIAN
289	select SYS_HAS_EARLY_PRINTK
290	select SWAP_IO_SPACE
291	select GPIOLIB
292	select HAVE_CLK
293	select MIPS_L1_CACHE_SHIFT_4
294	select CLKDEV_LOOKUP
295	help
296	  Support for BCM63XX based boards
297
298config MIPS_COBALT
299	bool "Cobalt Server"
300	select CEVT_R4K
301	select CSRC_R4K
302	select CEVT_GT641XX
303	select DMA_NONCOHERENT
304	select FORCE_PCI
305	select I8253
306	select I8259
307	select IRQ_MIPS_CPU
308	select IRQ_GT641XX
309	select PCI_GT64XXX_PCI0
310	select SYS_HAS_CPU_NEVADA
311	select SYS_HAS_EARLY_PRINTK
312	select SYS_SUPPORTS_32BIT_KERNEL
313	select SYS_SUPPORTS_64BIT_KERNEL
314	select SYS_SUPPORTS_LITTLE_ENDIAN
315	select USE_GENERIC_EARLY_PRINTK_8250
316
317config MACH_DECSTATION
318	bool "DECstations"
319	select BOOT_ELF32
320	select CEVT_DS1287
321	select CEVT_R4K if CPU_R4X00
322	select CSRC_IOASIC
323	select CSRC_R4K if CPU_R4X00
324	select CPU_DADDI_WORKAROUNDS if 64BIT
325	select CPU_R4000_WORKAROUNDS if 64BIT
326	select CPU_R4400_WORKAROUNDS if 64BIT
327	select DMA_NONCOHERENT
328	select NO_IOPORT_MAP
329	select IRQ_MIPS_CPU
330	select SYS_HAS_CPU_R3000
331	select SYS_HAS_CPU_R4X00
332	select SYS_SUPPORTS_32BIT_KERNEL
333	select SYS_SUPPORTS_64BIT_KERNEL
334	select SYS_SUPPORTS_LITTLE_ENDIAN
335	select SYS_SUPPORTS_128HZ
336	select SYS_SUPPORTS_256HZ
337	select SYS_SUPPORTS_1024HZ
338	select MIPS_L1_CACHE_SHIFT_4
339	help
340	  This enables support for DEC's MIPS based workstations.  For details
341	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
342	  DECstation porting pages on <http://decstation.unix-ag.org/>.
343
344	  If you have one of the following DECstation Models you definitely
345	  want to choose R4xx0 for the CPU Type:
346
347		DECstation 5000/50
348		DECstation 5000/150
349		DECstation 5000/260
350		DECsystem 5900/260
351
352	  otherwise choose R3000.
353
354config MACH_JAZZ
355	bool "Jazz family of machines"
356	select ARCH_MIGHT_HAVE_PC_PARPORT
357	select ARCH_MIGHT_HAVE_PC_SERIO
358	select FW_ARC
359	select FW_ARC32
360	select ARCH_MAY_HAVE_PC_FDC
361	select CEVT_R4K
362	select CSRC_R4K
363	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
364	select GENERIC_ISA_DMA
365	select HAVE_PCSPKR_PLATFORM
366	select IRQ_MIPS_CPU
367	select I8253
368	select I8259
369	select ISA
370	select SYS_HAS_CPU_R4X00
371	select SYS_SUPPORTS_32BIT_KERNEL
372	select SYS_SUPPORTS_64BIT_KERNEL
373	select SYS_SUPPORTS_100HZ
374	help
375	  This a family of machines based on the MIPS R4030 chipset which was
376	  used by several vendors to build RISC/os and Windows NT workstations.
377	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
378	  Olivetti M700-10 workstations.
379
380config MACH_INGENIC
381	bool "Ingenic SoC based machines"
382	select SYS_SUPPORTS_32BIT_KERNEL
383	select SYS_SUPPORTS_LITTLE_ENDIAN
384	select SYS_SUPPORTS_ZBOOT_UART16550
385	select DMA_NONCOHERENT
386	select IRQ_MIPS_CPU
387	select PINCTRL
388	select GPIOLIB
389	select COMMON_CLK
390	select GENERIC_IRQ_CHIP
391	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
392	select USE_OF
393	select LIBFDT
394
395config LANTIQ
396	bool "Lantiq based platforms"
397	select DMA_NONCOHERENT
398	select IRQ_MIPS_CPU
399	select CEVT_R4K
400	select CSRC_R4K
401	select SYS_HAS_CPU_MIPS32_R1
402	select SYS_HAS_CPU_MIPS32_R2
403	select SYS_SUPPORTS_BIG_ENDIAN
404	select SYS_SUPPORTS_32BIT_KERNEL
405	select SYS_SUPPORTS_MIPS16
406	select SYS_SUPPORTS_MULTITHREADING
407	select SYS_SUPPORTS_VPE_LOADER
408	select SYS_HAS_EARLY_PRINTK
409	select GPIOLIB
410	select SWAP_IO_SPACE
411	select BOOT_RAW
412	select CLKDEV_LOOKUP
413	select USE_OF
414	select PINCTRL
415	select PINCTRL_LANTIQ
416	select ARCH_HAS_RESET_CONTROLLER
417	select RESET_CONTROLLER
418
419config LASAT
420	bool "LASAT Networks platforms"
421	select CEVT_R4K
422	select CRC32
423	select CSRC_R4K
424	select DMA_NONCOHERENT
425	select SYS_HAS_EARLY_PRINTK
426	select HAVE_PCI
427	select IRQ_MIPS_CPU
428	select PCI_GT64XXX_PCI0
429	select MIPS_NILE4
430	select R5000_CPU_SCACHE
431	select SYS_HAS_CPU_R5000
432	select SYS_SUPPORTS_32BIT_KERNEL
433	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
434	select SYS_SUPPORTS_LITTLE_ENDIAN
435
436config MACH_LOONGSON32
437	bool "Loongson-1 family of machines"
438	select SYS_SUPPORTS_ZBOOT
439	help
440	  This enables support for the Loongson-1 family of machines.
441
442	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
443	  the Institute of Computing Technology (ICT), Chinese Academy of
444	  Sciences (CAS).
445
446config MACH_LOONGSON64
447	bool "Loongson-2/3 family of machines"
448	select SYS_SUPPORTS_ZBOOT
449	help
450	  This enables the support of Loongson-2/3 family of machines.
451
452	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
453	  family of multi-core CPUs. They are both 64-bit general-purpose
454	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
455	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
456	  in the People's Republic of China. The chief architect is Professor
457	  Weiwu Hu.
458
459config MACH_PISTACHIO
460	bool "IMG Pistachio SoC based boards"
461	select BOOT_ELF32
462	select BOOT_RAW
463	select CEVT_R4K
464	select CLKSRC_MIPS_GIC
465	select COMMON_CLK
466	select CSRC_R4K
467	select DMA_NONCOHERENT
468	select GPIOLIB
469	select IRQ_MIPS_CPU
470	select LIBFDT
471	select MFD_SYSCON
472	select MIPS_CPU_SCACHE
473	select MIPS_GIC
474	select PINCTRL
475	select REGULATOR
476	select SYS_HAS_CPU_MIPS32_R2
477	select SYS_SUPPORTS_32BIT_KERNEL
478	select SYS_SUPPORTS_LITTLE_ENDIAN
479	select SYS_SUPPORTS_MIPS_CPS
480	select SYS_SUPPORTS_MULTITHREADING
481	select SYS_SUPPORTS_RELOCATABLE
482	select SYS_SUPPORTS_ZBOOT
483	select SYS_HAS_EARLY_PRINTK
484	select USE_GENERIC_EARLY_PRINTK_8250
485	select USE_OF
486	help
487	  This enables support for the IMG Pistachio SoC platform.
488
489config MIPS_MALTA
490	bool "MIPS Malta board"
491	select ARCH_MAY_HAVE_PC_FDC
492	select ARCH_MIGHT_HAVE_PC_PARPORT
493	select ARCH_MIGHT_HAVE_PC_SERIO
494	select BOOT_ELF32
495	select BOOT_RAW
496	select BUILTIN_DTB
497	select CEVT_R4K
498	select CLKSRC_MIPS_GIC
499	select COMMON_CLK
500	select CSRC_R4K
501	select DMA_MAYBE_COHERENT
502	select GENERIC_ISA_DMA
503	select HAVE_PCSPKR_PLATFORM
504	select HAVE_PCI
505	select I8253
506	select I8259
507	select IRQ_MIPS_CPU
508	select LIBFDT
509	select MIPS_BONITO64
510	select MIPS_CPU_SCACHE
511	select MIPS_GIC
512	select MIPS_L1_CACHE_SHIFT_6
513	select MIPS_MSC
514	select PCI_GT64XXX_PCI0
515	select SMP_UP if SMP
516	select SWAP_IO_SPACE
517	select SYS_HAS_CPU_MIPS32_R1
518	select SYS_HAS_CPU_MIPS32_R2
519	select SYS_HAS_CPU_MIPS32_R3_5
520	select SYS_HAS_CPU_MIPS32_R5
521	select SYS_HAS_CPU_MIPS32_R6
522	select SYS_HAS_CPU_MIPS64_R1
523	select SYS_HAS_CPU_MIPS64_R2
524	select SYS_HAS_CPU_MIPS64_R6
525	select SYS_HAS_CPU_NEVADA
526	select SYS_HAS_CPU_RM7000
527	select SYS_SUPPORTS_32BIT_KERNEL
528	select SYS_SUPPORTS_64BIT_KERNEL
529	select SYS_SUPPORTS_BIG_ENDIAN
530	select SYS_SUPPORTS_HIGHMEM
531	select SYS_SUPPORTS_LITTLE_ENDIAN
532	select SYS_SUPPORTS_MICROMIPS
533	select SYS_SUPPORTS_MIPS16
534	select SYS_SUPPORTS_MIPS_CMP
535	select SYS_SUPPORTS_MIPS_CPS
536	select SYS_SUPPORTS_MULTITHREADING
537	select SYS_SUPPORTS_RELOCATABLE
538	select SYS_SUPPORTS_SMARTMIPS
539	select SYS_SUPPORTS_VPE_LOADER
540	select SYS_SUPPORTS_ZBOOT
541	select USE_OF
542	select ZONE_DMA32 if 64BIT
543	help
544	  This enables support for the MIPS Technologies Malta evaluation
545	  board.
546
547config MACH_PIC32
548	bool "Microchip PIC32 Family"
549	help
550	  This enables support for the Microchip PIC32 family of platforms.
551
552	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
553	  microcontrollers.
554
555config NEC_MARKEINS
556	bool "NEC EMMA2RH Mark-eins board"
557	select SOC_EMMA2RH
558	select HAVE_PCI
559	help
560	  This enables support for the NEC Electronics Mark-eins boards.
561
562config MACH_VR41XX
563	bool "NEC VR4100 series based machines"
564	select CEVT_R4K
565	select CSRC_R4K
566	select SYS_HAS_CPU_VR41XX
567	select SYS_SUPPORTS_MIPS16
568	select GPIOLIB
569
570config NXP_STB220
571	bool "NXP STB220 board"
572	select SOC_PNX833X
573	help
574	  Support for NXP Semiconductors STB220 Development Board.
575
576config NXP_STB225
577	bool "NXP 225 board"
578	select SOC_PNX833X
579	select SOC_PNX8335
580	help
581	  Support for NXP Semiconductors STB225 Development Board.
582
583config PMC_MSP
584	bool "PMC-Sierra MSP chipsets"
585	select CEVT_R4K
586	select CSRC_R4K
587	select DMA_NONCOHERENT
588	select SWAP_IO_SPACE
589	select NO_EXCEPT_FILL
590	select BOOT_RAW
591	select SYS_HAS_CPU_MIPS32_R1
592	select SYS_HAS_CPU_MIPS32_R2
593	select SYS_SUPPORTS_32BIT_KERNEL
594	select SYS_SUPPORTS_BIG_ENDIAN
595	select SYS_SUPPORTS_MIPS16
596	select IRQ_MIPS_CPU
597	select SERIAL_8250
598	select SERIAL_8250_CONSOLE
599	select USB_EHCI_BIG_ENDIAN_MMIO
600	select USB_EHCI_BIG_ENDIAN_DESC
601	help
602	  This adds support for the PMC-Sierra family of Multi-Service
603	  Processor System-On-A-Chips.  These parts include a number
604	  of integrated peripherals, interfaces and DSPs in addition to
605	  a variety of MIPS cores.
606
607config RALINK
608	bool "Ralink based machines"
609	select CEVT_R4K
610	select CSRC_R4K
611	select BOOT_RAW
612	select DMA_NONCOHERENT
613	select IRQ_MIPS_CPU
614	select USE_OF
615	select SYS_HAS_CPU_MIPS32_R1
616	select SYS_HAS_CPU_MIPS32_R2
617	select SYS_SUPPORTS_32BIT_KERNEL
618	select SYS_SUPPORTS_LITTLE_ENDIAN
619	select SYS_SUPPORTS_MIPS16
620	select SYS_HAS_EARLY_PRINTK
621	select CLKDEV_LOOKUP
622	select ARCH_HAS_RESET_CONTROLLER
623	select RESET_CONTROLLER
624
625config SGI_IP22
626	bool "SGI IP22 (Indy/Indigo2)"
627	select FW_ARC
628	select FW_ARC32
629	select ARCH_MIGHT_HAVE_PC_SERIO
630	select BOOT_ELF32
631	select CEVT_R4K
632	select CSRC_R4K
633	select DEFAULT_SGI_PARTITION
634	select DMA_NONCOHERENT
635	select HAVE_EISA
636	select I8253
637	select I8259
638	select IP22_CPU_SCACHE
639	select IRQ_MIPS_CPU
640	select GENERIC_ISA_DMA_SUPPORT_BROKEN
641	select SGI_HAS_I8042
642	select SGI_HAS_INDYDOG
643	select SGI_HAS_HAL2
644	select SGI_HAS_SEEQ
645	select SGI_HAS_WD93
646	select SGI_HAS_ZILOG
647	select SWAP_IO_SPACE
648	select SYS_HAS_CPU_R4X00
649	select SYS_HAS_CPU_R5000
650	#
651	# Disable EARLY_PRINTK for now since it leads to overwritten prom
652	# memory during early boot on some machines.
653	#
654	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
655	# for a more details discussion
656	#
657	# select SYS_HAS_EARLY_PRINTK
658	select SYS_SUPPORTS_32BIT_KERNEL
659	select SYS_SUPPORTS_64BIT_KERNEL
660	select SYS_SUPPORTS_BIG_ENDIAN
661	select MIPS_L1_CACHE_SHIFT_7
662	help
663	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
664	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
665	  that runs on these, say Y here.
666
667config SGI_IP27
668	bool "SGI IP27 (Origin200/2000)"
669	select ARCH_HAS_PHYS_TO_DMA
670	select FW_ARC
671	select FW_ARC64
672	select BOOT_ELF64
673	select DEFAULT_SGI_PARTITION
674	select SYS_HAS_EARLY_PRINTK
675	select HAVE_PCI
676	select IRQ_MIPS_CPU
677	select IRQ_DOMAIN_HIERARCHY
678	select NR_CPUS_DEFAULT_64
679	select PCI_DRIVERS_GENERIC
680	select PCI_XTALK_BRIDGE
681	select SYS_HAS_CPU_R10000
682	select SYS_SUPPORTS_64BIT_KERNEL
683	select SYS_SUPPORTS_BIG_ENDIAN
684	select SYS_SUPPORTS_NUMA
685	select SYS_SUPPORTS_SMP
686	select MIPS_L1_CACHE_SHIFT_7
687	help
688	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
689	  workstations.  To compile a Linux kernel that runs on these, say Y
690	  here.
691
692config SGI_IP28
693	bool "SGI IP28 (Indigo2 R10k)"
694	select FW_ARC
695	select FW_ARC64
696	select ARCH_MIGHT_HAVE_PC_SERIO
697	select BOOT_ELF64
698	select CEVT_R4K
699	select CSRC_R4K
700	select DEFAULT_SGI_PARTITION
701	select DMA_NONCOHERENT
702	select GENERIC_ISA_DMA_SUPPORT_BROKEN
703	select IRQ_MIPS_CPU
704	select HAVE_EISA
705	select I8253
706	select I8259
707	select SGI_HAS_I8042
708	select SGI_HAS_INDYDOG
709	select SGI_HAS_HAL2
710	select SGI_HAS_SEEQ
711	select SGI_HAS_WD93
712	select SGI_HAS_ZILOG
713	select SWAP_IO_SPACE
714	select SYS_HAS_CPU_R10000
715	#
716	# Disable EARLY_PRINTK for now since it leads to overwritten prom
717	# memory during early boot on some machines.
718	#
719	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
720	# for a more details discussion
721	#
722	# select SYS_HAS_EARLY_PRINTK
723	select SYS_SUPPORTS_64BIT_KERNEL
724	select SYS_SUPPORTS_BIG_ENDIAN
725	select MIPS_L1_CACHE_SHIFT_7
726	help
727	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
728	  kernel that runs on these, say Y here.
729
730config SGI_IP32
731	bool "SGI IP32 (O2)"
732	select ARCH_HAS_PHYS_TO_DMA
733	select FW_ARC
734	select FW_ARC32
735	select BOOT_ELF32
736	select CEVT_R4K
737	select CSRC_R4K
738	select DMA_NONCOHERENT
739	select HAVE_PCI
740	select IRQ_MIPS_CPU
741	select R5000_CPU_SCACHE
742	select RM7000_CPU_SCACHE
743	select SYS_HAS_CPU_R5000
744	select SYS_HAS_CPU_R10000 if BROKEN
745	select SYS_HAS_CPU_RM7000
746	select SYS_HAS_CPU_NEVADA
747	select SYS_SUPPORTS_64BIT_KERNEL
748	select SYS_SUPPORTS_BIG_ENDIAN
749	help
750	  If you want this kernel to run on SGI O2 workstation, say Y here.
751
752config SIBYTE_CRHINE
753	bool "Sibyte BCM91120C-CRhine"
754	select BOOT_ELF32
755	select SIBYTE_BCM1120
756	select SWAP_IO_SPACE
757	select SYS_HAS_CPU_SB1
758	select SYS_SUPPORTS_BIG_ENDIAN
759	select SYS_SUPPORTS_LITTLE_ENDIAN
760
761config SIBYTE_CARMEL
762	bool "Sibyte BCM91120x-Carmel"
763	select BOOT_ELF32
764	select SIBYTE_BCM1120
765	select SWAP_IO_SPACE
766	select SYS_HAS_CPU_SB1
767	select SYS_SUPPORTS_BIG_ENDIAN
768	select SYS_SUPPORTS_LITTLE_ENDIAN
769
770config SIBYTE_CRHONE
771	bool "Sibyte BCM91125C-CRhone"
772	select BOOT_ELF32
773	select SIBYTE_BCM1125
774	select SWAP_IO_SPACE
775	select SYS_HAS_CPU_SB1
776	select SYS_SUPPORTS_BIG_ENDIAN
777	select SYS_SUPPORTS_HIGHMEM
778	select SYS_SUPPORTS_LITTLE_ENDIAN
779
780config SIBYTE_RHONE
781	bool "Sibyte BCM91125E-Rhone"
782	select BOOT_ELF32
783	select SIBYTE_BCM1125H
784	select SWAP_IO_SPACE
785	select SYS_HAS_CPU_SB1
786	select SYS_SUPPORTS_BIG_ENDIAN
787	select SYS_SUPPORTS_LITTLE_ENDIAN
788
789config SIBYTE_SWARM
790	bool "Sibyte BCM91250A-SWARM"
791	select BOOT_ELF32
792	select HAVE_PATA_PLATFORM
793	select SIBYTE_SB1250
794	select SWAP_IO_SPACE
795	select SYS_HAS_CPU_SB1
796	select SYS_SUPPORTS_BIG_ENDIAN
797	select SYS_SUPPORTS_HIGHMEM
798	select SYS_SUPPORTS_LITTLE_ENDIAN
799	select ZONE_DMA32 if 64BIT
800	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
801
802config SIBYTE_LITTLESUR
803	bool "Sibyte BCM91250C2-LittleSur"
804	select BOOT_ELF32
805	select HAVE_PATA_PLATFORM
806	select SIBYTE_SB1250
807	select SWAP_IO_SPACE
808	select SYS_HAS_CPU_SB1
809	select SYS_SUPPORTS_BIG_ENDIAN
810	select SYS_SUPPORTS_HIGHMEM
811	select SYS_SUPPORTS_LITTLE_ENDIAN
812	select ZONE_DMA32 if 64BIT
813
814config SIBYTE_SENTOSA
815	bool "Sibyte BCM91250E-Sentosa"
816	select BOOT_ELF32
817	select SIBYTE_SB1250
818	select SWAP_IO_SPACE
819	select SYS_HAS_CPU_SB1
820	select SYS_SUPPORTS_BIG_ENDIAN
821	select SYS_SUPPORTS_LITTLE_ENDIAN
822	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
823
824config SIBYTE_BIGSUR
825	bool "Sibyte BCM91480B-BigSur"
826	select BOOT_ELF32
827	select NR_CPUS_DEFAULT_4
828	select SIBYTE_BCM1x80
829	select SWAP_IO_SPACE
830	select SYS_HAS_CPU_SB1
831	select SYS_SUPPORTS_BIG_ENDIAN
832	select SYS_SUPPORTS_HIGHMEM
833	select SYS_SUPPORTS_LITTLE_ENDIAN
834	select ZONE_DMA32 if 64BIT
835	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
836
837config SNI_RM
838	bool "SNI RM200/300/400"
839	select FW_ARC if CPU_LITTLE_ENDIAN
840	select FW_ARC32 if CPU_LITTLE_ENDIAN
841	select FW_SNIPROM if CPU_BIG_ENDIAN
842	select ARCH_MAY_HAVE_PC_FDC
843	select ARCH_MIGHT_HAVE_PC_PARPORT
844	select ARCH_MIGHT_HAVE_PC_SERIO
845	select BOOT_ELF32
846	select CEVT_R4K
847	select CSRC_R4K
848	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
849	select DMA_NONCOHERENT
850	select GENERIC_ISA_DMA
851	select HAVE_EISA
852	select HAVE_PCSPKR_PLATFORM
853	select HAVE_PCI
854	select IRQ_MIPS_CPU
855	select I8253
856	select I8259
857	select ISA
858	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
859	select SYS_HAS_CPU_R4X00
860	select SYS_HAS_CPU_R5000
861	select SYS_HAS_CPU_R10000
862	select R5000_CPU_SCACHE
863	select SYS_HAS_EARLY_PRINTK
864	select SYS_SUPPORTS_32BIT_KERNEL
865	select SYS_SUPPORTS_64BIT_KERNEL
866	select SYS_SUPPORTS_BIG_ENDIAN
867	select SYS_SUPPORTS_HIGHMEM
868	select SYS_SUPPORTS_LITTLE_ENDIAN
869	help
870	  The SNI RM200/300/400 are MIPS-based machines manufactured by
871	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
872	  Technology and now in turn merged with Fujitsu.  Say Y here to
873	  support this machine type.
874
875config MACH_TX39XX
876	bool "Toshiba TX39 series based machines"
877
878config MACH_TX49XX
879	bool "Toshiba TX49 series based machines"
880
881config MIKROTIK_RB532
882	bool "Mikrotik RB532 boards"
883	select CEVT_R4K
884	select CSRC_R4K
885	select DMA_NONCOHERENT
886	select HAVE_PCI
887	select IRQ_MIPS_CPU
888	select SYS_HAS_CPU_MIPS32_R1
889	select SYS_SUPPORTS_32BIT_KERNEL
890	select SYS_SUPPORTS_LITTLE_ENDIAN
891	select SWAP_IO_SPACE
892	select BOOT_RAW
893	select GPIOLIB
894	select MIPS_L1_CACHE_SHIFT_4
895	help
896	  Support the Mikrotik(tm) RouterBoard 532 series,
897	  based on the IDT RC32434 SoC.
898
899config CAVIUM_OCTEON_SOC
900	bool "Cavium Networks Octeon SoC based boards"
901	select CEVT_R4K
902	select ARCH_HAS_PHYS_TO_DMA
903	select HAVE_RAPIDIO
904	select PHYS_ADDR_T_64BIT
905	select SYS_SUPPORTS_64BIT_KERNEL
906	select SYS_SUPPORTS_BIG_ENDIAN
907	select EDAC_SUPPORT
908	select EDAC_ATOMIC_SCRUB
909	select SYS_SUPPORTS_LITTLE_ENDIAN
910	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
911	select SYS_HAS_EARLY_PRINTK
912	select SYS_HAS_CPU_CAVIUM_OCTEON
913	select HAVE_PCI
914	select ZONE_DMA32
915	select HOLES_IN_ZONE
916	select GPIOLIB
917	select LIBFDT
918	select USE_OF
919	select ARCH_SPARSEMEM_ENABLE
920	select SYS_SUPPORTS_SMP
921	select NR_CPUS_DEFAULT_64
922	select MIPS_NR_CPU_NR_MAP_1024
923	select BUILTIN_DTB
924	select MTD_COMPLEX_MAPPINGS
925	select SWIOTLB
926	select SYS_SUPPORTS_RELOCATABLE
927	help
928	  This option supports all of the Octeon reference boards from Cavium
929	  Networks. It builds a kernel that dynamically determines the Octeon
930	  CPU type and supports all known board reference implementations.
931	  Some of the supported boards are:
932		EBT3000
933		EBH3000
934		EBH3100
935		Thunder
936		Kodama
937		Hikari
938	  Say Y here for most Octeon reference boards.
939
940config NLM_XLR_BOARD
941	bool "Netlogic XLR/XLS based systems"
942	select BOOT_ELF32
943	select NLM_COMMON
944	select SYS_HAS_CPU_XLR
945	select SYS_SUPPORTS_SMP
946	select HAVE_PCI
947	select SWAP_IO_SPACE
948	select SYS_SUPPORTS_32BIT_KERNEL
949	select SYS_SUPPORTS_64BIT_KERNEL
950	select PHYS_ADDR_T_64BIT
951	select SYS_SUPPORTS_BIG_ENDIAN
952	select SYS_SUPPORTS_HIGHMEM
953	select NR_CPUS_DEFAULT_32
954	select CEVT_R4K
955	select CSRC_R4K
956	select IRQ_MIPS_CPU
957	select ZONE_DMA32 if 64BIT
958	select SYNC_R4K
959	select SYS_HAS_EARLY_PRINTK
960	select SYS_SUPPORTS_ZBOOT
961	select SYS_SUPPORTS_ZBOOT_UART16550
962	help
963	  Support for systems based on Netlogic XLR and XLS processors.
964	  Say Y here if you have a XLR or XLS based board.
965
966config NLM_XLP_BOARD
967	bool "Netlogic XLP based systems"
968	select BOOT_ELF32
969	select NLM_COMMON
970	select SYS_HAS_CPU_XLP
971	select SYS_SUPPORTS_SMP
972	select HAVE_PCI
973	select SYS_SUPPORTS_32BIT_KERNEL
974	select SYS_SUPPORTS_64BIT_KERNEL
975	select PHYS_ADDR_T_64BIT
976	select GPIOLIB
977	select SYS_SUPPORTS_BIG_ENDIAN
978	select SYS_SUPPORTS_LITTLE_ENDIAN
979	select SYS_SUPPORTS_HIGHMEM
980	select NR_CPUS_DEFAULT_32
981	select CEVT_R4K
982	select CSRC_R4K
983	select IRQ_MIPS_CPU
984	select ZONE_DMA32 if 64BIT
985	select SYNC_R4K
986	select SYS_HAS_EARLY_PRINTK
987	select USE_OF
988	select SYS_SUPPORTS_ZBOOT
989	select SYS_SUPPORTS_ZBOOT_UART16550
990	help
991	  This board is based on Netlogic XLP Processor.
992	  Say Y here if you have a XLP based board.
993
994config MIPS_PARAVIRT
995	bool "Para-Virtualized guest system"
996	select CEVT_R4K
997	select CSRC_R4K
998	select SYS_SUPPORTS_64BIT_KERNEL
999	select SYS_SUPPORTS_32BIT_KERNEL
1000	select SYS_SUPPORTS_BIG_ENDIAN
1001	select SYS_SUPPORTS_SMP
1002	select NR_CPUS_DEFAULT_4
1003	select SYS_HAS_EARLY_PRINTK
1004	select SYS_HAS_CPU_MIPS32_R2
1005	select SYS_HAS_CPU_MIPS64_R2
1006	select SYS_HAS_CPU_CAVIUM_OCTEON
1007	select HAVE_PCI
1008	select SWAP_IO_SPACE
1009	help
1010	  This option supports guest running under ????
1011
1012endchoice
1013
1014source "arch/mips/alchemy/Kconfig"
1015source "arch/mips/ath25/Kconfig"
1016source "arch/mips/ath79/Kconfig"
1017source "arch/mips/bcm47xx/Kconfig"
1018source "arch/mips/bcm63xx/Kconfig"
1019source "arch/mips/bmips/Kconfig"
1020source "arch/mips/generic/Kconfig"
1021source "arch/mips/jazz/Kconfig"
1022source "arch/mips/jz4740/Kconfig"
1023source "arch/mips/lantiq/Kconfig"
1024source "arch/mips/lasat/Kconfig"
1025source "arch/mips/pic32/Kconfig"
1026source "arch/mips/pistachio/Kconfig"
1027source "arch/mips/pmcs-msp71xx/Kconfig"
1028source "arch/mips/ralink/Kconfig"
1029source "arch/mips/sgi-ip27/Kconfig"
1030source "arch/mips/sibyte/Kconfig"
1031source "arch/mips/txx9/Kconfig"
1032source "arch/mips/vr41xx/Kconfig"
1033source "arch/mips/cavium-octeon/Kconfig"
1034source "arch/mips/loongson32/Kconfig"
1035source "arch/mips/loongson64/Kconfig"
1036source "arch/mips/netlogic/Kconfig"
1037source "arch/mips/paravirt/Kconfig"
1038
1039endmenu
1040
1041config GENERIC_HWEIGHT
1042	bool
1043	default y
1044
1045config GENERIC_CALIBRATE_DELAY
1046	bool
1047	default y
1048
1049config SCHED_OMIT_FRAME_POINTER
1050	bool
1051	default y
1052
1053#
1054# Select some configuration options automatically based on user selections.
1055#
1056config FW_ARC
1057	bool
1058
1059config ARCH_MAY_HAVE_PC_FDC
1060	bool
1061
1062config BOOT_RAW
1063	bool
1064
1065config CEVT_BCM1480
1066	bool
1067
1068config CEVT_DS1287
1069	bool
1070
1071config CEVT_GT641XX
1072	bool
1073
1074config CEVT_R4K
1075	bool
1076
1077config CEVT_SB1250
1078	bool
1079
1080config CEVT_TXX9
1081	bool
1082
1083config CSRC_BCM1480
1084	bool
1085
1086config CSRC_IOASIC
1087	bool
1088
1089config CSRC_R4K
1090	bool
1091
1092config CSRC_SB1250
1093	bool
1094
1095config MIPS_CLOCK_VSYSCALL
1096	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1097
1098config GPIO_TXX9
1099	select GPIOLIB
1100	bool
1101
1102config FW_CFE
1103	bool
1104
1105config ARCH_SUPPORTS_UPROBES
1106	bool
1107
1108config DMA_MAYBE_COHERENT
1109	select ARCH_HAS_DMA_COHERENCE_H
1110	select DMA_NONCOHERENT
1111	bool
1112
1113config DMA_PERDEV_COHERENT
1114	bool
1115	select ARCH_HAS_SETUP_DMA_OPS
1116	select DMA_NONCOHERENT
1117
1118config DMA_NONCOHERENT
1119	bool
1120	select ARCH_HAS_DMA_MMAP_PGPROT
1121	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1122	select NEED_DMA_MAP_STATE
1123	select ARCH_HAS_DMA_COHERENT_TO_PFN
1124	select DMA_NONCOHERENT_CACHE_SYNC
1125
1126config SYS_HAS_EARLY_PRINTK
1127	bool
1128
1129config SYS_SUPPORTS_HOTPLUG_CPU
1130	bool
1131
1132config MIPS_BONITO64
1133	bool
1134
1135config MIPS_MSC
1136	bool
1137
1138config MIPS_NILE4
1139	bool
1140
1141config SYNC_R4K
1142	bool
1143
1144config MIPS_MACHINE
1145	def_bool n
1146
1147config NO_IOPORT_MAP
1148	def_bool n
1149
1150config GENERIC_CSUM
1151	bool
1152	default y if !CPU_HAS_LOAD_STORE_LR
1153
1154config GENERIC_ISA_DMA
1155	bool
1156	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1157	select ISA_DMA_API
1158
1159config GENERIC_ISA_DMA_SUPPORT_BROKEN
1160	bool
1161	select GENERIC_ISA_DMA
1162
1163config ISA_DMA_API
1164	bool
1165
1166config HOLES_IN_ZONE
1167	bool
1168
1169config SYS_SUPPORTS_RELOCATABLE
1170	bool
1171	help
1172	  Selected if the platform supports relocating the kernel.
1173	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1174	  to allow access to command line and entropy sources.
1175
1176config MIPS_CBPF_JIT
1177	def_bool y
1178	depends on BPF_JIT && HAVE_CBPF_JIT
1179
1180config MIPS_EBPF_JIT
1181	def_bool y
1182	depends on BPF_JIT && HAVE_EBPF_JIT
1183
1184
1185#
1186# Endianness selection.  Sufficiently obscure so many users don't know what to
1187# answer,so we try hard to limit the available choices.  Also the use of a
1188# choice statement should be more obvious to the user.
1189#
1190choice
1191	prompt "Endianness selection"
1192	help
1193	  Some MIPS machines can be configured for either little or big endian
1194	  byte order. These modes require different kernels and a different
1195	  Linux distribution.  In general there is one preferred byteorder for a
1196	  particular system but some systems are just as commonly used in the
1197	  one or the other endianness.
1198
1199config CPU_BIG_ENDIAN
1200	bool "Big endian"
1201	depends on SYS_SUPPORTS_BIG_ENDIAN
1202
1203config CPU_LITTLE_ENDIAN
1204	bool "Little endian"
1205	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1206
1207endchoice
1208
1209config EXPORT_UASM
1210	bool
1211
1212config SYS_SUPPORTS_APM_EMULATION
1213	bool
1214
1215config SYS_SUPPORTS_BIG_ENDIAN
1216	bool
1217
1218config SYS_SUPPORTS_LITTLE_ENDIAN
1219	bool
1220
1221config SYS_SUPPORTS_HUGETLBFS
1222	bool
1223	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1224	default y
1225
1226config MIPS_HUGE_TLB_SUPPORT
1227	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1228
1229config IRQ_CPU_RM7K
1230	bool
1231
1232config IRQ_MSP_SLP
1233	bool
1234
1235config IRQ_MSP_CIC
1236	bool
1237
1238config IRQ_TXX9
1239	bool
1240
1241config IRQ_GT641XX
1242	bool
1243
1244config PCI_GT64XXX_PCI0
1245	bool
1246
1247config PCI_XTALK_BRIDGE
1248	bool
1249
1250config NO_EXCEPT_FILL
1251	bool
1252
1253config SOC_EMMA2RH
1254	bool
1255	select CEVT_R4K
1256	select CSRC_R4K
1257	select DMA_NONCOHERENT
1258	select IRQ_MIPS_CPU
1259	select SWAP_IO_SPACE
1260	select SYS_HAS_CPU_R5500
1261	select SYS_SUPPORTS_32BIT_KERNEL
1262	select SYS_SUPPORTS_64BIT_KERNEL
1263	select SYS_SUPPORTS_BIG_ENDIAN
1264
1265config SOC_PNX833X
1266	bool
1267	select CEVT_R4K
1268	select CSRC_R4K
1269	select IRQ_MIPS_CPU
1270	select DMA_NONCOHERENT
1271	select SYS_HAS_CPU_MIPS32_R2
1272	select SYS_SUPPORTS_32BIT_KERNEL
1273	select SYS_SUPPORTS_LITTLE_ENDIAN
1274	select SYS_SUPPORTS_BIG_ENDIAN
1275	select SYS_SUPPORTS_MIPS16
1276	select CPU_MIPSR2_IRQ_VI
1277
1278config SOC_PNX8335
1279	bool
1280	select SOC_PNX833X
1281
1282config MIPS_SPRAM
1283	bool
1284
1285config SWAP_IO_SPACE
1286	bool
1287
1288config SGI_HAS_INDYDOG
1289	bool
1290
1291config SGI_HAS_HAL2
1292	bool
1293
1294config SGI_HAS_SEEQ
1295	bool
1296
1297config SGI_HAS_WD93
1298	bool
1299
1300config SGI_HAS_ZILOG
1301	bool
1302
1303config SGI_HAS_I8042
1304	bool
1305
1306config DEFAULT_SGI_PARTITION
1307	bool
1308
1309config FW_ARC32
1310	bool
1311
1312config FW_SNIPROM
1313	bool
1314
1315config BOOT_ELF32
1316	bool
1317
1318config MIPS_L1_CACHE_SHIFT_4
1319	bool
1320
1321config MIPS_L1_CACHE_SHIFT_5
1322	bool
1323
1324config MIPS_L1_CACHE_SHIFT_6
1325	bool
1326
1327config MIPS_L1_CACHE_SHIFT_7
1328	bool
1329
1330config MIPS_L1_CACHE_SHIFT
1331	int
1332	default "7" if MIPS_L1_CACHE_SHIFT_7
1333	default "6" if MIPS_L1_CACHE_SHIFT_6
1334	default "5" if MIPS_L1_CACHE_SHIFT_5
1335	default "4" if MIPS_L1_CACHE_SHIFT_4
1336	default "5"
1337
1338config HAVE_STD_PC_SERIAL_PORT
1339	bool
1340
1341config ARC_CONSOLE
1342	bool "ARC console support"
1343	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1344
1345config ARC_MEMORY
1346	bool
1347	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1348	default y
1349
1350config ARC_PROMLIB
1351	bool
1352	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1353	default y
1354
1355config FW_ARC64
1356	bool
1357
1358config BOOT_ELF64
1359	bool
1360
1361menu "CPU selection"
1362
1363choice
1364	prompt "CPU type"
1365	default CPU_R4X00
1366
1367config CPU_LOONGSON3
1368	bool "Loongson 3 CPU"
1369	depends on SYS_HAS_CPU_LOONGSON3
1370	select ARCH_HAS_PHYS_TO_DMA
1371	select CPU_SUPPORTS_64BIT_KERNEL
1372	select CPU_SUPPORTS_HIGHMEM
1373	select CPU_SUPPORTS_HUGEPAGES
1374	select CPU_HAS_LOAD_STORE_LR
1375	select WEAK_ORDERING
1376	select WEAK_REORDERING_BEYOND_LLSC
1377	select MIPS_PGD_C0_CONTEXT
1378	select MIPS_L1_CACHE_SHIFT_6
1379	select GPIOLIB
1380	select SWIOTLB
1381	help
1382		The Loongson 3 processor implements the MIPS64R2 instruction
1383		set with many extensions.
1384
1385config LOONGSON3_ENHANCEMENT
1386	bool "New Loongson 3 CPU Enhancements"
1387	default n
1388	select CPU_MIPSR2
1389	select CPU_HAS_PREFETCH
1390	depends on CPU_LOONGSON3
1391	help
1392	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1393	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1394	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1395	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1396	  Fast TLB refill support, etc.
1397
1398	  This option enable those enhancements which are not probed at run
1399	  time. If you want a generic kernel to run on all Loongson 3 machines,
1400	  please say 'N' here. If you want a high-performance kernel to run on
1401	  new Loongson 3 machines only, please say 'Y' here.
1402
1403config CPU_LOONGSON3_WORKAROUNDS
1404	bool "Old Loongson 3 LLSC Workarounds"
1405	default y if SMP
1406	depends on CPU_LOONGSON3
1407	help
1408	  Loongson 3 processors have the llsc issues which require workarounds.
1409	  Without workarounds the system may hang unexpectedly.
1410
1411	  Newer Loongson 3 will fix these issues and no workarounds are needed.
1412	  The workarounds have no significant side effect on them but may
1413	  decrease the performance of the system so this option should be
1414	  disabled unless the kernel is intended to be run on old systems.
1415
1416	  If unsure, please say Y.
1417
1418config CPU_LOONGSON2E
1419	bool "Loongson 2E"
1420	depends on SYS_HAS_CPU_LOONGSON2E
1421	select CPU_LOONGSON2
1422	help
1423	  The Loongson 2E processor implements the MIPS III instruction set
1424	  with many extensions.
1425
1426	  It has an internal FPGA northbridge, which is compatible to
1427	  bonito64.
1428
1429config CPU_LOONGSON2F
1430	bool "Loongson 2F"
1431	depends on SYS_HAS_CPU_LOONGSON2F
1432	select CPU_LOONGSON2
1433	select GPIOLIB
1434	help
1435	  The Loongson 2F processor implements the MIPS III instruction set
1436	  with many extensions.
1437
1438	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1439	  have a similar programming interface with FPGA northbridge used in
1440	  Loongson2E.
1441
1442config CPU_LOONGSON1B
1443	bool "Loongson 1B"
1444	depends on SYS_HAS_CPU_LOONGSON1B
1445	select CPU_LOONGSON1
1446	select LEDS_GPIO_REGISTER
1447	help
1448	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1449	  Release 1 instruction set and part of the MIPS32 Release 2
1450	  instruction set.
1451
1452config CPU_LOONGSON1C
1453	bool "Loongson 1C"
1454	depends on SYS_HAS_CPU_LOONGSON1C
1455	select CPU_LOONGSON1
1456	select LEDS_GPIO_REGISTER
1457	help
1458	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1459	  Release 1 instruction set and part of the MIPS32 Release 2
1460	  instruction set.
1461
1462config CPU_MIPS32_R1
1463	bool "MIPS32 Release 1"
1464	depends on SYS_HAS_CPU_MIPS32_R1
1465	select CPU_HAS_PREFETCH
1466	select CPU_HAS_LOAD_STORE_LR
1467	select CPU_SUPPORTS_32BIT_KERNEL
1468	select CPU_SUPPORTS_HIGHMEM
1469	help
1470	  Choose this option to build a kernel for release 1 or later of the
1471	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1472	  MIPS processor are based on a MIPS32 processor.  If you know the
1473	  specific type of processor in your system, choose those that one
1474	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1475	  Release 2 of the MIPS32 architecture is available since several
1476	  years so chances are you even have a MIPS32 Release 2 processor
1477	  in which case you should choose CPU_MIPS32_R2 instead for better
1478	  performance.
1479
1480config CPU_MIPS32_R2
1481	bool "MIPS32 Release 2"
1482	depends on SYS_HAS_CPU_MIPS32_R2
1483	select CPU_HAS_PREFETCH
1484	select CPU_HAS_LOAD_STORE_LR
1485	select CPU_SUPPORTS_32BIT_KERNEL
1486	select CPU_SUPPORTS_HIGHMEM
1487	select CPU_SUPPORTS_MSA
1488	select HAVE_KVM
1489	help
1490	  Choose this option to build a kernel for release 2 or later of the
1491	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1492	  MIPS processor are based on a MIPS32 processor.  If you know the
1493	  specific type of processor in your system, choose those that one
1494	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1495
1496config CPU_MIPS32_R6
1497	bool "MIPS32 Release 6"
1498	depends on SYS_HAS_CPU_MIPS32_R6
1499	select CPU_HAS_PREFETCH
1500	select CPU_SUPPORTS_32BIT_KERNEL
1501	select CPU_SUPPORTS_HIGHMEM
1502	select CPU_SUPPORTS_MSA
1503	select HAVE_KVM
1504	select MIPS_O32_FP64_SUPPORT
1505	help
1506	  Choose this option to build a kernel for release 6 or later of the
1507	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1508	  family, are based on a MIPS32r6 processor. If you own an older
1509	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1510
1511config CPU_MIPS64_R1
1512	bool "MIPS64 Release 1"
1513	depends on SYS_HAS_CPU_MIPS64_R1
1514	select CPU_HAS_PREFETCH
1515	select CPU_HAS_LOAD_STORE_LR
1516	select CPU_SUPPORTS_32BIT_KERNEL
1517	select CPU_SUPPORTS_64BIT_KERNEL
1518	select CPU_SUPPORTS_HIGHMEM
1519	select CPU_SUPPORTS_HUGEPAGES
1520	help
1521	  Choose this option to build a kernel for release 1 or later of the
1522	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1523	  MIPS processor are based on a MIPS64 processor.  If you know the
1524	  specific type of processor in your system, choose those that one
1525	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1526	  Release 2 of the MIPS64 architecture is available since several
1527	  years so chances are you even have a MIPS64 Release 2 processor
1528	  in which case you should choose CPU_MIPS64_R2 instead for better
1529	  performance.
1530
1531config CPU_MIPS64_R2
1532	bool "MIPS64 Release 2"
1533	depends on SYS_HAS_CPU_MIPS64_R2
1534	select CPU_HAS_PREFETCH
1535	select CPU_HAS_LOAD_STORE_LR
1536	select CPU_SUPPORTS_32BIT_KERNEL
1537	select CPU_SUPPORTS_64BIT_KERNEL
1538	select CPU_SUPPORTS_HIGHMEM
1539	select CPU_SUPPORTS_HUGEPAGES
1540	select CPU_SUPPORTS_MSA
1541	select HAVE_KVM
1542	help
1543	  Choose this option to build a kernel for release 2 or later of the
1544	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1545	  MIPS processor are based on a MIPS64 processor.  If you know the
1546	  specific type of processor in your system, choose those that one
1547	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1548
1549config CPU_MIPS64_R6
1550	bool "MIPS64 Release 6"
1551	depends on SYS_HAS_CPU_MIPS64_R6
1552	select CPU_HAS_PREFETCH
1553	select CPU_SUPPORTS_32BIT_KERNEL
1554	select CPU_SUPPORTS_64BIT_KERNEL
1555	select CPU_SUPPORTS_HIGHMEM
1556	select CPU_SUPPORTS_HUGEPAGES
1557	select CPU_SUPPORTS_MSA
1558	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1559	select HAVE_KVM
1560	help
1561	  Choose this option to build a kernel for release 6 or later of the
1562	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1563	  family, are based on a MIPS64r6 processor. If you own an older
1564	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1565
1566config CPU_R3000
1567	bool "R3000"
1568	depends on SYS_HAS_CPU_R3000
1569	select CPU_HAS_WB
1570	select CPU_HAS_LOAD_STORE_LR
1571	select CPU_SUPPORTS_32BIT_KERNEL
1572	select CPU_SUPPORTS_HIGHMEM
1573	help
1574	  Please make sure to pick the right CPU type. Linux/MIPS is not
1575	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1576	  *not* work on R4000 machines and vice versa.  However, since most
1577	  of the supported machines have an R4000 (or similar) CPU, R4x00
1578	  might be a safe bet.  If the resulting kernel does not work,
1579	  try to recompile with R3000.
1580
1581config CPU_TX39XX
1582	bool "R39XX"
1583	depends on SYS_HAS_CPU_TX39XX
1584	select CPU_SUPPORTS_32BIT_KERNEL
1585	select CPU_HAS_LOAD_STORE_LR
1586
1587config CPU_VR41XX
1588	bool "R41xx"
1589	depends on SYS_HAS_CPU_VR41XX
1590	select CPU_SUPPORTS_32BIT_KERNEL
1591	select CPU_SUPPORTS_64BIT_KERNEL
1592	select CPU_HAS_LOAD_STORE_LR
1593	help
1594	  The options selects support for the NEC VR4100 series of processors.
1595	  Only choose this option if you have one of these processors as a
1596	  kernel built with this option will not run on any other type of
1597	  processor or vice versa.
1598
1599config CPU_R4300
1600	bool "R4300"
1601	depends on SYS_HAS_CPU_R4300
1602	select CPU_SUPPORTS_32BIT_KERNEL
1603	select CPU_SUPPORTS_64BIT_KERNEL
1604	select CPU_HAS_LOAD_STORE_LR
1605	help
1606	  MIPS Technologies R4300-series processors.
1607
1608config CPU_R4X00
1609	bool "R4x00"
1610	depends on SYS_HAS_CPU_R4X00
1611	select CPU_SUPPORTS_32BIT_KERNEL
1612	select CPU_SUPPORTS_64BIT_KERNEL
1613	select CPU_SUPPORTS_HUGEPAGES
1614	select CPU_HAS_LOAD_STORE_LR
1615	help
1616	  MIPS Technologies R4000-series processors other than 4300, including
1617	  the R4000, R4400, R4600, and 4700.
1618
1619config CPU_TX49XX
1620	bool "R49XX"
1621	depends on SYS_HAS_CPU_TX49XX
1622	select CPU_HAS_PREFETCH
1623	select CPU_HAS_LOAD_STORE_LR
1624	select CPU_SUPPORTS_32BIT_KERNEL
1625	select CPU_SUPPORTS_64BIT_KERNEL
1626	select CPU_SUPPORTS_HUGEPAGES
1627
1628config CPU_R5000
1629	bool "R5000"
1630	depends on SYS_HAS_CPU_R5000
1631	select CPU_SUPPORTS_32BIT_KERNEL
1632	select CPU_SUPPORTS_64BIT_KERNEL
1633	select CPU_SUPPORTS_HUGEPAGES
1634	select CPU_HAS_LOAD_STORE_LR
1635	help
1636	  MIPS Technologies R5000-series processors other than the Nevada.
1637
1638config CPU_R5432
1639	bool "R5432"
1640	depends on SYS_HAS_CPU_R5432
1641	select CPU_SUPPORTS_32BIT_KERNEL
1642	select CPU_SUPPORTS_64BIT_KERNEL
1643	select CPU_SUPPORTS_HUGEPAGES
1644	select CPU_HAS_LOAD_STORE_LR
1645
1646config CPU_R5500
1647	bool "R5500"
1648	depends on SYS_HAS_CPU_R5500
1649	select CPU_SUPPORTS_32BIT_KERNEL
1650	select CPU_SUPPORTS_64BIT_KERNEL
1651	select CPU_SUPPORTS_HUGEPAGES
1652	select CPU_HAS_LOAD_STORE_LR
1653	help
1654	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1655	  instruction set.
1656
1657config CPU_NEVADA
1658	bool "RM52xx"
1659	depends on SYS_HAS_CPU_NEVADA
1660	select CPU_SUPPORTS_32BIT_KERNEL
1661	select CPU_SUPPORTS_64BIT_KERNEL
1662	select CPU_SUPPORTS_HUGEPAGES
1663	select CPU_HAS_LOAD_STORE_LR
1664	help
1665	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1666
1667config CPU_R8000
1668	bool "R8000"
1669	depends on SYS_HAS_CPU_R8000
1670	select CPU_HAS_PREFETCH
1671	select CPU_HAS_LOAD_STORE_LR
1672	select CPU_SUPPORTS_64BIT_KERNEL
1673	help
1674	  MIPS Technologies R8000 processors.  Note these processors are
1675	  uncommon and the support for them is incomplete.
1676
1677config CPU_R10000
1678	bool "R10000"
1679	depends on SYS_HAS_CPU_R10000
1680	select CPU_HAS_PREFETCH
1681	select CPU_HAS_LOAD_STORE_LR
1682	select CPU_SUPPORTS_32BIT_KERNEL
1683	select CPU_SUPPORTS_64BIT_KERNEL
1684	select CPU_SUPPORTS_HIGHMEM
1685	select CPU_SUPPORTS_HUGEPAGES
1686	help
1687	  MIPS Technologies R10000-series processors.
1688
1689config CPU_RM7000
1690	bool "RM7000"
1691	depends on SYS_HAS_CPU_RM7000
1692	select CPU_HAS_PREFETCH
1693	select CPU_HAS_LOAD_STORE_LR
1694	select CPU_SUPPORTS_32BIT_KERNEL
1695	select CPU_SUPPORTS_64BIT_KERNEL
1696	select CPU_SUPPORTS_HIGHMEM
1697	select CPU_SUPPORTS_HUGEPAGES
1698
1699config CPU_SB1
1700	bool "SB1"
1701	depends on SYS_HAS_CPU_SB1
1702	select CPU_HAS_LOAD_STORE_LR
1703	select CPU_SUPPORTS_32BIT_KERNEL
1704	select CPU_SUPPORTS_64BIT_KERNEL
1705	select CPU_SUPPORTS_HIGHMEM
1706	select CPU_SUPPORTS_HUGEPAGES
1707	select WEAK_ORDERING
1708
1709config CPU_CAVIUM_OCTEON
1710	bool "Cavium Octeon processor"
1711	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1712	select CPU_HAS_PREFETCH
1713	select CPU_HAS_LOAD_STORE_LR
1714	select CPU_SUPPORTS_64BIT_KERNEL
1715	select WEAK_ORDERING
1716	select CPU_SUPPORTS_HIGHMEM
1717	select CPU_SUPPORTS_HUGEPAGES
1718	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1719	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1720	select MIPS_L1_CACHE_SHIFT_7
1721	select HAVE_KVM
1722	help
1723	  The Cavium Octeon processor is a highly integrated chip containing
1724	  many ethernet hardware widgets for networking tasks. The processor
1725	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1726	  Full details can be found at http://www.caviumnetworks.com.
1727
1728config CPU_BMIPS
1729	bool "Broadcom BMIPS"
1730	depends on SYS_HAS_CPU_BMIPS
1731	select CPU_MIPS32
1732	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1733	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1734	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1735	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1736	select CPU_SUPPORTS_32BIT_KERNEL
1737	select DMA_NONCOHERENT
1738	select IRQ_MIPS_CPU
1739	select SWAP_IO_SPACE
1740	select WEAK_ORDERING
1741	select CPU_SUPPORTS_HIGHMEM
1742	select CPU_HAS_PREFETCH
1743	select CPU_HAS_LOAD_STORE_LR
1744	select CPU_SUPPORTS_CPUFREQ
1745	select MIPS_EXTERNAL_TIMER
1746	help
1747	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1748
1749config CPU_XLR
1750	bool "Netlogic XLR SoC"
1751	depends on SYS_HAS_CPU_XLR
1752	select CPU_HAS_LOAD_STORE_LR
1753	select CPU_SUPPORTS_32BIT_KERNEL
1754	select CPU_SUPPORTS_64BIT_KERNEL
1755	select CPU_SUPPORTS_HIGHMEM
1756	select CPU_SUPPORTS_HUGEPAGES
1757	select WEAK_ORDERING
1758	select WEAK_REORDERING_BEYOND_LLSC
1759	help
1760	  Netlogic Microsystems XLR/XLS processors.
1761
1762config CPU_XLP
1763	bool "Netlogic XLP SoC"
1764	depends on SYS_HAS_CPU_XLP
1765	select CPU_SUPPORTS_32BIT_KERNEL
1766	select CPU_SUPPORTS_64BIT_KERNEL
1767	select CPU_SUPPORTS_HIGHMEM
1768	select WEAK_ORDERING
1769	select WEAK_REORDERING_BEYOND_LLSC
1770	select CPU_HAS_PREFETCH
1771	select CPU_HAS_LOAD_STORE_LR
1772	select CPU_MIPSR2
1773	select CPU_SUPPORTS_HUGEPAGES
1774	select MIPS_ASID_BITS_VARIABLE
1775	help
1776	  Netlogic Microsystems XLP processors.
1777endchoice
1778
1779config CPU_MIPS32_3_5_FEATURES
1780	bool "MIPS32 Release 3.5 Features"
1781	depends on SYS_HAS_CPU_MIPS32_R3_5
1782	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1783	help
1784	  Choose this option to build a kernel for release 2 or later of the
1785	  MIPS32 architecture including features from the 3.5 release such as
1786	  support for Enhanced Virtual Addressing (EVA).
1787
1788config CPU_MIPS32_3_5_EVA
1789	bool "Enhanced Virtual Addressing (EVA)"
1790	depends on CPU_MIPS32_3_5_FEATURES
1791	select EVA
1792	default y
1793	help
1794	  Choose this option if you want to enable the Enhanced Virtual
1795	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1796	  One of its primary benefits is an increase in the maximum size
1797	  of lowmem (up to 3GB). If unsure, say 'N' here.
1798
1799config CPU_MIPS32_R5_FEATURES
1800	bool "MIPS32 Release 5 Features"
1801	depends on SYS_HAS_CPU_MIPS32_R5
1802	depends on CPU_MIPS32_R2
1803	help
1804	  Choose this option to build a kernel for release 2 or later of the
1805	  MIPS32 architecture including features from release 5 such as
1806	  support for Extended Physical Addressing (XPA).
1807
1808config CPU_MIPS32_R5_XPA
1809	bool "Extended Physical Addressing (XPA)"
1810	depends on CPU_MIPS32_R5_FEATURES
1811	depends on !EVA
1812	depends on !PAGE_SIZE_4KB
1813	depends on SYS_SUPPORTS_HIGHMEM
1814	select XPA
1815	select HIGHMEM
1816	select PHYS_ADDR_T_64BIT
1817	default n
1818	help
1819	  Choose this option if you want to enable the Extended Physical
1820	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1821	  benefit is to increase physical addressing equal to or greater
1822	  than 40 bits. Note that this has the side effect of turning on
1823	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1824	  If unsure, say 'N' here.
1825
1826if CPU_LOONGSON2F
1827config CPU_NOP_WORKAROUNDS
1828	bool
1829
1830config CPU_JUMP_WORKAROUNDS
1831	bool
1832
1833config CPU_LOONGSON2F_WORKAROUNDS
1834	bool "Loongson 2F Workarounds"
1835	default y
1836	select CPU_NOP_WORKAROUNDS
1837	select CPU_JUMP_WORKAROUNDS
1838	help
1839	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1840	  require workarounds.  Without workarounds the system may hang
1841	  unexpectedly.  For more information please refer to the gas
1842	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1843
1844	  Loongson 2F03 and later have fixed these issues and no workarounds
1845	  are needed.  The workarounds have no significant side effect on them
1846	  but may decrease the performance of the system so this option should
1847	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1848	  systems.
1849
1850	  If unsure, please say Y.
1851endif # CPU_LOONGSON2F
1852
1853config SYS_SUPPORTS_ZBOOT
1854	bool
1855	select HAVE_KERNEL_GZIP
1856	select HAVE_KERNEL_BZIP2
1857	select HAVE_KERNEL_LZ4
1858	select HAVE_KERNEL_LZMA
1859	select HAVE_KERNEL_LZO
1860	select HAVE_KERNEL_XZ
1861
1862config SYS_SUPPORTS_ZBOOT_UART16550
1863	bool
1864	select SYS_SUPPORTS_ZBOOT
1865
1866config SYS_SUPPORTS_ZBOOT_UART_PROM
1867	bool
1868	select SYS_SUPPORTS_ZBOOT
1869
1870config CPU_LOONGSON2
1871	bool
1872	select CPU_SUPPORTS_32BIT_KERNEL
1873	select CPU_SUPPORTS_64BIT_KERNEL
1874	select CPU_SUPPORTS_HIGHMEM
1875	select CPU_SUPPORTS_HUGEPAGES
1876	select ARCH_HAS_PHYS_TO_DMA
1877	select CPU_HAS_LOAD_STORE_LR
1878
1879config CPU_LOONGSON1
1880	bool
1881	select CPU_MIPS32
1882	select CPU_MIPSR2
1883	select CPU_HAS_PREFETCH
1884	select CPU_HAS_LOAD_STORE_LR
1885	select CPU_SUPPORTS_32BIT_KERNEL
1886	select CPU_SUPPORTS_HIGHMEM
1887	select CPU_SUPPORTS_CPUFREQ
1888
1889config CPU_BMIPS32_3300
1890	select SMP_UP if SMP
1891	bool
1892
1893config CPU_BMIPS4350
1894	bool
1895	select SYS_SUPPORTS_SMP
1896	select SYS_SUPPORTS_HOTPLUG_CPU
1897
1898config CPU_BMIPS4380
1899	bool
1900	select MIPS_L1_CACHE_SHIFT_6
1901	select SYS_SUPPORTS_SMP
1902	select SYS_SUPPORTS_HOTPLUG_CPU
1903	select CPU_HAS_RIXI
1904
1905config CPU_BMIPS5000
1906	bool
1907	select MIPS_CPU_SCACHE
1908	select MIPS_L1_CACHE_SHIFT_7
1909	select SYS_SUPPORTS_SMP
1910	select SYS_SUPPORTS_HOTPLUG_CPU
1911	select CPU_HAS_RIXI
1912
1913config SYS_HAS_CPU_LOONGSON3
1914	bool
1915	select CPU_SUPPORTS_CPUFREQ
1916	select CPU_HAS_RIXI
1917
1918config SYS_HAS_CPU_LOONGSON2E
1919	bool
1920
1921config SYS_HAS_CPU_LOONGSON2F
1922	bool
1923	select CPU_SUPPORTS_CPUFREQ
1924	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1925	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1926
1927config SYS_HAS_CPU_LOONGSON1B
1928	bool
1929
1930config SYS_HAS_CPU_LOONGSON1C
1931	bool
1932
1933config SYS_HAS_CPU_MIPS32_R1
1934	bool
1935
1936config SYS_HAS_CPU_MIPS32_R2
1937	bool
1938
1939config SYS_HAS_CPU_MIPS32_R3_5
1940	bool
1941
1942config SYS_HAS_CPU_MIPS32_R5
1943	bool
1944	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1945
1946config SYS_HAS_CPU_MIPS32_R6
1947	bool
1948	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1959
1960config SYS_HAS_CPU_R3000
1961	bool
1962
1963config SYS_HAS_CPU_TX39XX
1964	bool
1965
1966config SYS_HAS_CPU_VR41XX
1967	bool
1968
1969config SYS_HAS_CPU_R4300
1970	bool
1971
1972config SYS_HAS_CPU_R4X00
1973	bool
1974
1975config SYS_HAS_CPU_TX49XX
1976	bool
1977
1978config SYS_HAS_CPU_R5000
1979	bool
1980
1981config SYS_HAS_CPU_R5432
1982	bool
1983
1984config SYS_HAS_CPU_R5500
1985	bool
1986
1987config SYS_HAS_CPU_NEVADA
1988	bool
1989
1990config SYS_HAS_CPU_R8000
1991	bool
1992
1993config SYS_HAS_CPU_R10000
1994	bool
1995	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1996
1997config SYS_HAS_CPU_RM7000
1998	bool
1999
2000config SYS_HAS_CPU_SB1
2001	bool
2002
2003config SYS_HAS_CPU_CAVIUM_OCTEON
2004	bool
2005
2006config SYS_HAS_CPU_BMIPS
2007	bool
2008
2009config SYS_HAS_CPU_BMIPS32_3300
2010	bool
2011	select SYS_HAS_CPU_BMIPS
2012
2013config SYS_HAS_CPU_BMIPS4350
2014	bool
2015	select SYS_HAS_CPU_BMIPS
2016
2017config SYS_HAS_CPU_BMIPS4380
2018	bool
2019	select SYS_HAS_CPU_BMIPS
2020
2021config SYS_HAS_CPU_BMIPS5000
2022	bool
2023	select SYS_HAS_CPU_BMIPS
2024	select ARCH_HAS_SYNC_DMA_FOR_CPU
2025
2026config SYS_HAS_CPU_XLR
2027	bool
2028
2029config SYS_HAS_CPU_XLP
2030	bool
2031
2032#
2033# CPU may reorder R->R, R->W, W->R, W->W
2034# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2035#
2036config WEAK_ORDERING
2037	bool
2038
2039#
2040# CPU may reorder reads and writes beyond LL/SC
2041# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2042#
2043config WEAK_REORDERING_BEYOND_LLSC
2044	bool
2045endmenu
2046
2047#
2048# These two indicate any level of the MIPS32 and MIPS64 architecture
2049#
2050config CPU_MIPS32
2051	bool
2052	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2053
2054config CPU_MIPS64
2055	bool
2056	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2057
2058#
2059# These indicate the revision of the architecture
2060#
2061config CPU_MIPSR1
2062	bool
2063	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2064
2065config CPU_MIPSR2
2066	bool
2067	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2068	select CPU_HAS_RIXI
2069	select MIPS_SPRAM
2070
2071config CPU_MIPSR6
2072	bool
2073	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2074	select CPU_HAS_RIXI
2075	select HAVE_ARCH_BITREVERSE
2076	select MIPS_ASID_BITS_VARIABLE
2077	select MIPS_CRC_SUPPORT
2078	select MIPS_SPRAM
2079
2080config TARGET_ISA_REV
2081	int
2082	default 1 if CPU_MIPSR1
2083	default 2 if CPU_MIPSR2
2084	default 6 if CPU_MIPSR6
2085	default 0
2086	help
2087	  Reflects the ISA revision being targeted by the kernel build. This
2088	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2089
2090config EVA
2091	bool
2092
2093config XPA
2094	bool
2095
2096config SYS_SUPPORTS_32BIT_KERNEL
2097	bool
2098config SYS_SUPPORTS_64BIT_KERNEL
2099	bool
2100config CPU_SUPPORTS_32BIT_KERNEL
2101	bool
2102config CPU_SUPPORTS_64BIT_KERNEL
2103	bool
2104config CPU_SUPPORTS_CPUFREQ
2105	bool
2106config CPU_SUPPORTS_ADDRWINCFG
2107	bool
2108config CPU_SUPPORTS_HUGEPAGES
2109	bool
2110config CPU_SUPPORTS_UNCACHED_ACCELERATED
2111	bool
2112config MIPS_PGD_C0_CONTEXT
2113	bool
2114	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2115
2116#
2117# Set to y for ptrace access to watch registers.
2118#
2119config HARDWARE_WATCHPOINTS
2120	bool
2121	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2122
2123menu "Kernel type"
2124
2125choice
2126	prompt "Kernel code model"
2127	help
2128	  You should only select this option if you have a workload that
2129	  actually benefits from 64-bit processing or if your machine has
2130	  large memory.  You will only be presented a single option in this
2131	  menu if your system does not support both 32-bit and 64-bit kernels.
2132
2133config 32BIT
2134	bool "32-bit kernel"
2135	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2136	select TRAD_SIGNALS
2137	help
2138	  Select this option if you want to build a 32-bit kernel.
2139
2140config 64BIT
2141	bool "64-bit kernel"
2142	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2143	help
2144	  Select this option if you want to build a 64-bit kernel.
2145
2146endchoice
2147
2148config KVM_GUEST
2149	bool "KVM Guest Kernel"
2150	depends on BROKEN_ON_SMP
2151	help
2152	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2153	  mode.
2154
2155config KVM_GUEST_TIMER_FREQ
2156	int "Count/Compare Timer Frequency (MHz)"
2157	depends on KVM_GUEST
2158	default 100
2159	help
2160	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2161	  emulation when determining guest CPU Frequency. Instead, the guest's
2162	  timer frequency is specified directly.
2163
2164config MIPS_VA_BITS_48
2165	bool "48 bits virtual memory"
2166	depends on 64BIT
2167	help
2168	  Support a maximum at least 48 bits of application virtual
2169	  memory.  Default is 40 bits or less, depending on the CPU.
2170	  For page sizes 16k and above, this option results in a small
2171	  memory overhead for page tables.  For 4k page size, a fourth
2172	  level of page tables is added which imposes both a memory
2173	  overhead as well as slower TLB fault handling.
2174
2175	  If unsure, say N.
2176
2177choice
2178	prompt "Kernel page size"
2179	default PAGE_SIZE_4KB
2180
2181config PAGE_SIZE_4KB
2182	bool "4kB"
2183	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2184	help
2185	  This option select the standard 4kB Linux page size.  On some
2186	  R3000-family processors this is the only available page size.  Using
2187	  4kB page size will minimize memory consumption and is therefore
2188	  recommended for low memory systems.
2189
2190config PAGE_SIZE_8KB
2191	bool "8kB"
2192	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2193	depends on !MIPS_VA_BITS_48
2194	help
2195	  Using 8kB page size will result in higher performance kernel at
2196	  the price of higher memory consumption.  This option is available
2197	  only on R8000 and cnMIPS processors.  Note that you will need a
2198	  suitable Linux distribution to support this.
2199
2200config PAGE_SIZE_16KB
2201	bool "16kB"
2202	depends on !CPU_R3000 && !CPU_TX39XX
2203	help
2204	  Using 16kB page size will result in higher performance kernel at
2205	  the price of higher memory consumption.  This option is available on
2206	  all non-R3000 family processors.  Note that you will need a suitable
2207	  Linux distribution to support this.
2208
2209config PAGE_SIZE_32KB
2210	bool "32kB"
2211	depends on CPU_CAVIUM_OCTEON
2212	depends on !MIPS_VA_BITS_48
2213	help
2214	  Using 32kB page size will result in higher performance kernel at
2215	  the price of higher memory consumption.  This option is available
2216	  only on cnMIPS cores.  Note that you will need a suitable Linux
2217	  distribution to support this.
2218
2219config PAGE_SIZE_64KB
2220	bool "64kB"
2221	depends on !CPU_R3000 && !CPU_TX39XX
2222	help
2223	  Using 64kB page size will result in higher performance kernel at
2224	  the price of higher memory consumption.  This option is available on
2225	  all non-R3000 family processor.  Not that at the time of this
2226	  writing this option is still high experimental.
2227
2228endchoice
2229
2230config FORCE_MAX_ZONEORDER
2231	int "Maximum zone order"
2232	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2233	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2234	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2235	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2236	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2237	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2238	range 11 64
2239	default "11"
2240	help
2241	  The kernel memory allocator divides physically contiguous memory
2242	  blocks into "zones", where each zone is a power of two number of
2243	  pages.  This option selects the largest power of two that the kernel
2244	  keeps in the memory allocator.  If you need to allocate very large
2245	  blocks of physically contiguous memory, then you may need to
2246	  increase this value.
2247
2248	  This config option is actually maximum order plus one. For example,
2249	  a value of 11 means that the largest free memory block is 2^10 pages.
2250
2251	  The page size is not necessarily 4KB.  Keep this in mind
2252	  when choosing a value for this option.
2253
2254config BOARD_SCACHE
2255	bool
2256
2257config IP22_CPU_SCACHE
2258	bool
2259	select BOARD_SCACHE
2260
2261#
2262# Support for a MIPS32 / MIPS64 style S-caches
2263#
2264config MIPS_CPU_SCACHE
2265	bool
2266	select BOARD_SCACHE
2267
2268config R5000_CPU_SCACHE
2269	bool
2270	select BOARD_SCACHE
2271
2272config RM7000_CPU_SCACHE
2273	bool
2274	select BOARD_SCACHE
2275
2276config SIBYTE_DMA_PAGEOPS
2277	bool "Use DMA to clear/copy pages"
2278	depends on CPU_SB1
2279	help
2280	  Instead of using the CPU to zero and copy pages, use a Data Mover
2281	  channel.  These DMA channels are otherwise unused by the standard
2282	  SiByte Linux port.  Seems to give a small performance benefit.
2283
2284config CPU_HAS_PREFETCH
2285	bool
2286
2287config CPU_GENERIC_DUMP_TLB
2288	bool
2289	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2290
2291config MIPS_FP_SUPPORT
2292	bool "Floating Point support" if EXPERT
2293	default y
2294	help
2295	  Select y to include support for floating point in the kernel
2296	  including initialization of FPU hardware, FP context save & restore
2297	  and emulation of an FPU where necessary. Without this support any
2298	  userland program attempting to use floating point instructions will
2299	  receive a SIGILL.
2300
2301	  If you know that your userland will not attempt to use floating point
2302	  instructions then you can say n here to shrink the kernel a little.
2303
2304	  If unsure, say y.
2305
2306config CPU_R2300_FPU
2307	bool
2308	depends on MIPS_FP_SUPPORT
2309	default y if CPU_R3000 || CPU_TX39XX
2310
2311config CPU_R4K_FPU
2312	bool
2313	depends on MIPS_FP_SUPPORT
2314	default y if !CPU_R2300_FPU
2315
2316config CPU_R4K_CACHE_TLB
2317	bool
2318	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2319
2320config MIPS_MT_SMP
2321	bool "MIPS MT SMP support (1 TC on each available VPE)"
2322	default y
2323	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2324	select CPU_MIPSR2_IRQ_VI
2325	select CPU_MIPSR2_IRQ_EI
2326	select SYNC_R4K
2327	select MIPS_MT
2328	select SMP
2329	select SMP_UP
2330	select SYS_SUPPORTS_SMP
2331	select SYS_SUPPORTS_SCHED_SMT
2332	select MIPS_PERF_SHARED_TC_COUNTERS
2333	help
2334	  This is a kernel model which is known as SMVP. This is supported
2335	  on cores with the MT ASE and uses the available VPEs to implement
2336	  virtual processors which supports SMP. This is equivalent to the
2337	  Intel Hyperthreading feature. For further information go to
2338	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2339
2340config MIPS_MT
2341	bool
2342
2343config SCHED_SMT
2344	bool "SMT (multithreading) scheduler support"
2345	depends on SYS_SUPPORTS_SCHED_SMT
2346	default n
2347	help
2348	  SMT scheduler support improves the CPU scheduler's decision making
2349	  when dealing with MIPS MT enabled cores at a cost of slightly
2350	  increased overhead in some places. If unsure say N here.
2351
2352config SYS_SUPPORTS_SCHED_SMT
2353	bool
2354
2355config SYS_SUPPORTS_MULTITHREADING
2356	bool
2357
2358config MIPS_MT_FPAFF
2359	bool "Dynamic FPU affinity for FP-intensive threads"
2360	default y
2361	depends on MIPS_MT_SMP
2362
2363config MIPSR2_TO_R6_EMULATOR
2364	bool "MIPS R2-to-R6 emulator"
2365	depends on CPU_MIPSR6
2366	depends on MIPS_FP_SUPPORT
2367	default y
2368	help
2369	  Choose this option if you want to run non-R6 MIPS userland code.
2370	  Even if you say 'Y' here, the emulator will still be disabled by
2371	  default. You can enable it using the 'mipsr2emu' kernel option.
2372	  The only reason this is a build-time option is to save ~14K from the
2373	  final kernel image.
2374
2375config SYS_SUPPORTS_VPE_LOADER
2376	bool
2377	depends on SYS_SUPPORTS_MULTITHREADING
2378	help
2379	  Indicates that the platform supports the VPE loader, and provides
2380	  physical_memsize.
2381
2382config MIPS_VPE_LOADER
2383	bool "VPE loader support."
2384	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2385	select CPU_MIPSR2_IRQ_VI
2386	select CPU_MIPSR2_IRQ_EI
2387	select MIPS_MT
2388	help
2389	  Includes a loader for loading an elf relocatable object
2390	  onto another VPE and running it.
2391
2392config MIPS_VPE_LOADER_CMP
2393	bool
2394	default "y"
2395	depends on MIPS_VPE_LOADER && MIPS_CMP
2396
2397config MIPS_VPE_LOADER_MT
2398	bool
2399	default "y"
2400	depends on MIPS_VPE_LOADER && !MIPS_CMP
2401
2402config MIPS_VPE_LOADER_TOM
2403	bool "Load VPE program into memory hidden from linux"
2404	depends on MIPS_VPE_LOADER
2405	default y
2406	help
2407	  The loader can use memory that is present but has been hidden from
2408	  Linux using the kernel command line option "mem=xxMB". It's up to
2409	  you to ensure the amount you put in the option and the space your
2410	  program requires is less or equal to the amount physically present.
2411
2412config MIPS_VPE_APSP_API
2413	bool "Enable support for AP/SP API (RTLX)"
2414	depends on MIPS_VPE_LOADER
2415
2416config MIPS_VPE_APSP_API_CMP
2417	bool
2418	default "y"
2419	depends on MIPS_VPE_APSP_API && MIPS_CMP
2420
2421config MIPS_VPE_APSP_API_MT
2422	bool
2423	default "y"
2424	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2425
2426config MIPS_CMP
2427	bool "MIPS CMP framework support (DEPRECATED)"
2428	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2429	select SMP
2430	select SYNC_R4K
2431	select SYS_SUPPORTS_SMP
2432	select WEAK_ORDERING
2433	default n
2434	help
2435	  Select this if you are using a bootloader which implements the "CMP
2436	  framework" protocol (ie. YAMON) and want your kernel to make use of
2437	  its ability to start secondary CPUs.
2438
2439	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2440	  instead of this.
2441
2442config MIPS_CPS
2443	bool "MIPS Coherent Processing System support"
2444	depends on SYS_SUPPORTS_MIPS_CPS
2445	select MIPS_CM
2446	select MIPS_CPS_PM if HOTPLUG_CPU
2447	select SMP
2448	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2449	select SYS_SUPPORTS_HOTPLUG_CPU
2450	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2451	select SYS_SUPPORTS_SMP
2452	select WEAK_ORDERING
2453	help
2454	  Select this if you wish to run an SMP kernel across multiple cores
2455	  within a MIPS Coherent Processing System. When this option is
2456	  enabled the kernel will probe for other cores and boot them with
2457	  no external assistance. It is safe to enable this when hardware
2458	  support is unavailable.
2459
2460config MIPS_CPS_PM
2461	depends on MIPS_CPS
2462	bool
2463
2464config MIPS_CM
2465	bool
2466	select MIPS_CPC
2467
2468config MIPS_CPC
2469	bool
2470
2471config SB1_PASS_2_WORKAROUNDS
2472	bool
2473	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2474	default y
2475
2476config SB1_PASS_2_1_WORKAROUNDS
2477	bool
2478	depends on CPU_SB1 && CPU_SB1_PASS_2
2479	default y
2480
2481choice
2482	prompt "SmartMIPS or microMIPS ASE support"
2483
2484config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2485	bool "None"
2486	help
2487	  Select this if you want neither microMIPS nor SmartMIPS support
2488
2489config CPU_HAS_SMARTMIPS
2490	depends on SYS_SUPPORTS_SMARTMIPS
2491	bool "SmartMIPS"
2492	help
2493	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2494	  increased security at both hardware and software level for
2495	  smartcards.  Enabling this option will allow proper use of the
2496	  SmartMIPS instructions by Linux applications.  However a kernel with
2497	  this option will not work on a MIPS core without SmartMIPS core.  If
2498	  you don't know you probably don't have SmartMIPS and should say N
2499	  here.
2500
2501config CPU_MICROMIPS
2502	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2503	bool "microMIPS"
2504	help
2505	  When this option is enabled the kernel will be built using the
2506	  microMIPS ISA
2507
2508endchoice
2509
2510config CPU_HAS_MSA
2511	bool "Support for the MIPS SIMD Architecture"
2512	depends on CPU_SUPPORTS_MSA
2513	depends on MIPS_FP_SUPPORT
2514	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2515	help
2516	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2517	  and a set of SIMD instructions to operate on them. When this option
2518	  is enabled the kernel will support allocating & switching MSA
2519	  vector register contexts. If you know that your kernel will only be
2520	  running on CPUs which do not support MSA or that your userland will
2521	  not be making use of it then you may wish to say N here to reduce
2522	  the size & complexity of your kernel.
2523
2524	  If unsure, say Y.
2525
2526config CPU_HAS_WB
2527	bool
2528
2529config XKS01
2530	bool
2531
2532config CPU_HAS_RIXI
2533	bool
2534
2535config CPU_HAS_LOAD_STORE_LR
2536	bool
2537	help
2538	  CPU has support for unaligned load and store instructions:
2539	  LWL, LWR, SWL, SWR (Load/store word left/right).
2540	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2541
2542#
2543# Vectored interrupt mode is an R2 feature
2544#
2545config CPU_MIPSR2_IRQ_VI
2546	bool
2547
2548#
2549# Extended interrupt mode is an R2 feature
2550#
2551config CPU_MIPSR2_IRQ_EI
2552	bool
2553
2554config CPU_HAS_SYNC
2555	bool
2556	depends on !CPU_R3000
2557	default y
2558
2559#
2560# CPU non-features
2561#
2562config CPU_DADDI_WORKAROUNDS
2563	bool
2564
2565config CPU_R4000_WORKAROUNDS
2566	bool
2567	select CPU_R4400_WORKAROUNDS
2568
2569config CPU_R4400_WORKAROUNDS
2570	bool
2571
2572config MIPS_ASID_SHIFT
2573	int
2574	default 6 if CPU_R3000 || CPU_TX39XX
2575	default 4 if CPU_R8000
2576	default 0
2577
2578config MIPS_ASID_BITS
2579	int
2580	default 0 if MIPS_ASID_BITS_VARIABLE
2581	default 6 if CPU_R3000 || CPU_TX39XX
2582	default 8
2583
2584config MIPS_ASID_BITS_VARIABLE
2585	bool
2586
2587config MIPS_CRC_SUPPORT
2588	bool
2589
2590#
2591# - Highmem only makes sense for the 32-bit kernel.
2592# - The current highmem code will only work properly on physically indexed
2593#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2594#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2595#   moment we protect the user and offer the highmem option only on machines
2596#   where it's known to be safe.  This will not offer highmem on a few systems
2597#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2598#   indexed CPUs but we're playing safe.
2599# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2600#   know they might have memory configurations that could make use of highmem
2601#   support.
2602#
2603config HIGHMEM
2604	bool "High Memory Support"
2605	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2606
2607config CPU_SUPPORTS_HIGHMEM
2608	bool
2609
2610config SYS_SUPPORTS_HIGHMEM
2611	bool
2612
2613config SYS_SUPPORTS_SMARTMIPS
2614	bool
2615
2616config SYS_SUPPORTS_MICROMIPS
2617	bool
2618
2619config SYS_SUPPORTS_MIPS16
2620	bool
2621	help
2622	  This option must be set if a kernel might be executed on a MIPS16-
2623	  enabled CPU even if MIPS16 is not actually being used.  In other
2624	  words, it makes the kernel MIPS16-tolerant.
2625
2626config CPU_SUPPORTS_MSA
2627	bool
2628
2629config ARCH_FLATMEM_ENABLE
2630	def_bool y
2631	depends on !NUMA && !CPU_LOONGSON2
2632
2633config ARCH_DISCONTIGMEM_ENABLE
2634	bool
2635	default y if SGI_IP27
2636	help
2637	  Say Y to support efficient handling of discontiguous physical memory,
2638	  for architectures which are either NUMA (Non-Uniform Memory Access)
2639	  or have huge holes in the physical address space for other reasons.
2640	  See <file:Documentation/vm/numa.rst> for more.
2641
2642config ARCH_SPARSEMEM_ENABLE
2643	bool
2644	select SPARSEMEM_STATIC
2645
2646config NUMA
2647	bool "NUMA Support"
2648	depends on SYS_SUPPORTS_NUMA
2649	help
2650	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2651	  Access).  This option improves performance on systems with more
2652	  than two nodes; on two node systems it is generally better to
2653	  leave it disabled; on single node systems disable this option
2654	  disabled.
2655
2656config SYS_SUPPORTS_NUMA
2657	bool
2658
2659config RELOCATABLE
2660	bool "Relocatable kernel"
2661	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2662	help
2663	  This builds a kernel image that retains relocation information
2664	  so it can be loaded someplace besides the default 1MB.
2665	  The relocations make the kernel binary about 15% larger,
2666	  but are discarded at runtime
2667
2668config RELOCATION_TABLE_SIZE
2669	hex "Relocation table size"
2670	depends on RELOCATABLE
2671	range 0x0 0x01000000
2672	default "0x00100000"
2673	---help---
2674	  A table of relocation data will be appended to the kernel binary
2675	  and parsed at boot to fix up the relocated kernel.
2676
2677	  This option allows the amount of space reserved for the table to be
2678	  adjusted, although the default of 1Mb should be ok in most cases.
2679
2680	  The build will fail and a valid size suggested if this is too small.
2681
2682	  If unsure, leave at the default value.
2683
2684config RANDOMIZE_BASE
2685	bool "Randomize the address of the kernel image"
2686	depends on RELOCATABLE
2687	---help---
2688	  Randomizes the physical and virtual address at which the
2689	  kernel image is loaded, as a security feature that
2690	  deters exploit attempts relying on knowledge of the location
2691	  of kernel internals.
2692
2693	  Entropy is generated using any coprocessor 0 registers available.
2694
2695	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2696
2697	  If unsure, say N.
2698
2699config RANDOMIZE_BASE_MAX_OFFSET
2700	hex "Maximum kASLR offset" if EXPERT
2701	depends on RANDOMIZE_BASE
2702	range 0x0 0x40000000 if EVA || 64BIT
2703	range 0x0 0x08000000
2704	default "0x01000000"
2705	---help---
2706	  When kASLR is active, this provides the maximum offset that will
2707	  be applied to the kernel image. It should be set according to the
2708	  amount of physical RAM available in the target system minus
2709	  PHYSICAL_START and must be a power of 2.
2710
2711	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2712	  EVA or 64-bit. The default is 16Mb.
2713
2714config NODES_SHIFT
2715	int
2716	default "6"
2717	depends on NEED_MULTIPLE_NODES
2718
2719config HW_PERF_EVENTS
2720	bool "Enable hardware performance counter support for perf events"
2721	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2722	default y
2723	help
2724	  Enable hardware performance counter support for perf events. If
2725	  disabled, perf events will use software events only.
2726
2727config SMP
2728	bool "Multi-Processing support"
2729	depends on SYS_SUPPORTS_SMP
2730	help
2731	  This enables support for systems with more than one CPU. If you have
2732	  a system with only one CPU, say N. If you have a system with more
2733	  than one CPU, say Y.
2734
2735	  If you say N here, the kernel will run on uni- and multiprocessor
2736	  machines, but will use only one CPU of a multiprocessor machine. If
2737	  you say Y here, the kernel will run on many, but not all,
2738	  uniprocessor machines. On a uniprocessor machine, the kernel
2739	  will run faster if you say N here.
2740
2741	  People using multiprocessor machines who say Y here should also say
2742	  Y to "Enhanced Real Time Clock Support", below.
2743
2744	  See also the SMP-HOWTO available at
2745	  <http://www.tldp.org/docs.html#howto>.
2746
2747	  If you don't know what to do here, say N.
2748
2749config HOTPLUG_CPU
2750	bool "Support for hot-pluggable CPUs"
2751	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2752	help
2753	  Say Y here to allow turning CPUs off and on. CPUs can be
2754	  controlled through /sys/devices/system/cpu.
2755	  (Note: power management support will enable this option
2756	    automatically on SMP systems. )
2757	  Say N if you want to disable CPU hotplug.
2758
2759config SMP_UP
2760	bool
2761
2762config SYS_SUPPORTS_MIPS_CMP
2763	bool
2764
2765config SYS_SUPPORTS_MIPS_CPS
2766	bool
2767
2768config SYS_SUPPORTS_SMP
2769	bool
2770
2771config NR_CPUS_DEFAULT_4
2772	bool
2773
2774config NR_CPUS_DEFAULT_8
2775	bool
2776
2777config NR_CPUS_DEFAULT_16
2778	bool
2779
2780config NR_CPUS_DEFAULT_32
2781	bool
2782
2783config NR_CPUS_DEFAULT_64
2784	bool
2785
2786config NR_CPUS
2787	int "Maximum number of CPUs (2-256)"
2788	range 2 256
2789	depends on SMP
2790	default "4" if NR_CPUS_DEFAULT_4
2791	default "8" if NR_CPUS_DEFAULT_8
2792	default "16" if NR_CPUS_DEFAULT_16
2793	default "32" if NR_CPUS_DEFAULT_32
2794	default "64" if NR_CPUS_DEFAULT_64
2795	help
2796	  This allows you to specify the maximum number of CPUs which this
2797	  kernel will support.  The maximum supported value is 32 for 32-bit
2798	  kernel and 64 for 64-bit kernels; the minimum value which makes
2799	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2800	  and 2 for all others.
2801
2802	  This is purely to save memory - each supported CPU adds
2803	  approximately eight kilobytes to the kernel image.  For best
2804	  performance should round up your number of processors to the next
2805	  power of two.
2806
2807config MIPS_PERF_SHARED_TC_COUNTERS
2808	bool
2809
2810config MIPS_NR_CPU_NR_MAP_1024
2811	bool
2812
2813config MIPS_NR_CPU_NR_MAP
2814	int
2815	depends on SMP
2816	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2817	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2818
2819#
2820# Timer Interrupt Frequency Configuration
2821#
2822
2823choice
2824	prompt "Timer frequency"
2825	default HZ_250
2826	help
2827	  Allows the configuration of the timer frequency.
2828
2829	config HZ_24
2830		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2831
2832	config HZ_48
2833		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2834
2835	config HZ_100
2836		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2837
2838	config HZ_128
2839		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2840
2841	config HZ_250
2842		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2843
2844	config HZ_256
2845		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2846
2847	config HZ_1000
2848		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2849
2850	config HZ_1024
2851		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2852
2853endchoice
2854
2855config SYS_SUPPORTS_24HZ
2856	bool
2857
2858config SYS_SUPPORTS_48HZ
2859	bool
2860
2861config SYS_SUPPORTS_100HZ
2862	bool
2863
2864config SYS_SUPPORTS_128HZ
2865	bool
2866
2867config SYS_SUPPORTS_250HZ
2868	bool
2869
2870config SYS_SUPPORTS_256HZ
2871	bool
2872
2873config SYS_SUPPORTS_1000HZ
2874	bool
2875
2876config SYS_SUPPORTS_1024HZ
2877	bool
2878
2879config SYS_SUPPORTS_ARBIT_HZ
2880	bool
2881	default y if !SYS_SUPPORTS_24HZ && \
2882		     !SYS_SUPPORTS_48HZ && \
2883		     !SYS_SUPPORTS_100HZ && \
2884		     !SYS_SUPPORTS_128HZ && \
2885		     !SYS_SUPPORTS_250HZ && \
2886		     !SYS_SUPPORTS_256HZ && \
2887		     !SYS_SUPPORTS_1000HZ && \
2888		     !SYS_SUPPORTS_1024HZ
2889
2890config HZ
2891	int
2892	default 24 if HZ_24
2893	default 48 if HZ_48
2894	default 100 if HZ_100
2895	default 128 if HZ_128
2896	default 250 if HZ_250
2897	default 256 if HZ_256
2898	default 1000 if HZ_1000
2899	default 1024 if HZ_1024
2900
2901config SCHED_HRTICK
2902	def_bool HIGH_RES_TIMERS
2903
2904config KEXEC
2905	bool "Kexec system call"
2906	select KEXEC_CORE
2907	help
2908	  kexec is a system call that implements the ability to shutdown your
2909	  current kernel, and to start another kernel.  It is like a reboot
2910	  but it is independent of the system firmware.   And like a reboot
2911	  you can start any kernel with it, not just Linux.
2912
2913	  The name comes from the similarity to the exec system call.
2914
2915	  It is an ongoing process to be certain the hardware in a machine
2916	  is properly shutdown, so do not be surprised if this code does not
2917	  initially work for you.  As of this writing the exact hardware
2918	  interface is strongly in flux, so no good recommendation can be
2919	  made.
2920
2921config CRASH_DUMP
2922	bool "Kernel crash dumps"
2923	help
2924	  Generate crash dump after being started by kexec.
2925	  This should be normally only set in special crash dump kernels
2926	  which are loaded in the main kernel with kexec-tools into
2927	  a specially reserved region and then later executed after
2928	  a crash by kdump/kexec. The crash dump kernel must be compiled
2929	  to a memory address not used by the main kernel or firmware using
2930	  PHYSICAL_START.
2931
2932config PHYSICAL_START
2933	hex "Physical address where the kernel is loaded"
2934	default "0xffffffff84000000"
2935	depends on CRASH_DUMP
2936	help
2937	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2938	  If you plan to use kernel for capturing the crash dump change
2939	  this value to start of the reserved region (the "X" value as
2940	  specified in the "crashkernel=YM@XM" command line boot parameter
2941	  passed to the panic-ed kernel).
2942
2943config SECCOMP
2944	bool "Enable seccomp to safely compute untrusted bytecode"
2945	depends on PROC_FS
2946	default y
2947	help
2948	  This kernel feature is useful for number crunching applications
2949	  that may need to compute untrusted bytecode during their
2950	  execution. By using pipes or other transports made available to
2951	  the process as file descriptors supporting the read/write
2952	  syscalls, it's possible to isolate those applications in
2953	  their own address space using seccomp. Once seccomp is
2954	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2955	  and the task is only allowed to execute a few safe syscalls
2956	  defined by each seccomp mode.
2957
2958	  If unsure, say Y. Only embedded should say N here.
2959
2960config MIPS_O32_FP64_SUPPORT
2961	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2962	depends on 32BIT || MIPS32_O32
2963	help
2964	  When this is enabled, the kernel will support use of 64-bit floating
2965	  point registers with binaries using the O32 ABI along with the
2966	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2967	  32-bit MIPS systems this support is at the cost of increasing the
2968	  size and complexity of the compiled FPU emulator. Thus if you are
2969	  running a MIPS32 system and know that none of your userland binaries
2970	  will require 64-bit floating point, you may wish to reduce the size
2971	  of your kernel & potentially improve FP emulation performance by
2972	  saying N here.
2973
2974	  Although binutils currently supports use of this flag the details
2975	  concerning its effect upon the O32 ABI in userland are still being
2976	  worked on. In order to avoid userland becoming dependant upon current
2977	  behaviour before the details have been finalised, this option should
2978	  be considered experimental and only enabled by those working upon
2979	  said details.
2980
2981	  If unsure, say N.
2982
2983config USE_OF
2984	bool
2985	select OF
2986	select OF_EARLY_FLATTREE
2987	select IRQ_DOMAIN
2988
2989config UHI_BOOT
2990	bool
2991
2992config BUILTIN_DTB
2993	bool
2994
2995choice
2996	prompt "Kernel appended dtb support" if USE_OF
2997	default MIPS_NO_APPENDED_DTB
2998
2999	config MIPS_NO_APPENDED_DTB
3000		bool "None"
3001		help
3002		  Do not enable appended dtb support.
3003
3004	config MIPS_ELF_APPENDED_DTB
3005		bool "vmlinux"
3006		help
3007		  With this option, the boot code will look for a device tree binary
3008		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3009		  it is empty and the DTB can be appended using binutils command
3010		  objcopy:
3011
3012		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3013
3014		  This is meant as a backward compatiblity convenience for those
3015		  systems with a bootloader that can't be upgraded to accommodate
3016		  the documented boot protocol using a device tree.
3017
3018	config MIPS_RAW_APPENDED_DTB
3019		bool "vmlinux.bin or vmlinuz.bin"
3020		help
3021		  With this option, the boot code will look for a device tree binary
3022		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3023		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3024
3025		  This is meant as a backward compatibility convenience for those
3026		  systems with a bootloader that can't be upgraded to accommodate
3027		  the documented boot protocol using a device tree.
3028
3029		  Beware that there is very little in terms of protection against
3030		  this option being confused by leftover garbage in memory that might
3031		  look like a DTB header after a reboot if no actual DTB is appended
3032		  to vmlinux.bin.  Do not leave this option active in a production kernel
3033		  if you don't intend to always append a DTB.
3034endchoice
3035
3036choice
3037	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3038	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3039					 !MIPS_MALTA && \
3040					 !CAVIUM_OCTEON_SOC
3041	default MIPS_CMDLINE_FROM_BOOTLOADER
3042
3043	config MIPS_CMDLINE_FROM_DTB
3044		depends on USE_OF
3045		bool "Dtb kernel arguments if available"
3046
3047	config MIPS_CMDLINE_DTB_EXTEND
3048		depends on USE_OF
3049		bool "Extend dtb kernel arguments with bootloader arguments"
3050
3051	config MIPS_CMDLINE_FROM_BOOTLOADER
3052		bool "Bootloader kernel arguments if available"
3053
3054	config MIPS_CMDLINE_BUILTIN_EXTEND
3055		depends on CMDLINE_BOOL
3056		bool "Extend builtin kernel arguments with bootloader arguments"
3057endchoice
3058
3059endmenu
3060
3061config LOCKDEP_SUPPORT
3062	bool
3063	default y
3064
3065config STACKTRACE_SUPPORT
3066	bool
3067	default y
3068
3069config HAVE_LATENCYTOP_SUPPORT
3070	bool
3071	default y
3072
3073config PGTABLE_LEVELS
3074	int
3075	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3076	default 3 if 64BIT && !PAGE_SIZE_64KB
3077	default 2
3078
3079config MIPS_AUTO_PFN_OFFSET
3080	bool
3081
3082menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3083
3084config PCI_DRIVERS_GENERIC
3085	select PCI_DOMAINS_GENERIC if PCI
3086	bool
3087
3088config PCI_DRIVERS_LEGACY
3089	def_bool !PCI_DRIVERS_GENERIC
3090	select NO_GENERIC_PCI_IOPORT_MAP
3091	select PCI_DOMAINS if PCI
3092
3093#
3094# ISA support is now enabled via select.  Too many systems still have the one
3095# or other ISA chip on the board that users don't know about so don't expect
3096# users to choose the right thing ...
3097#
3098config ISA
3099	bool
3100
3101config TC
3102	bool "TURBOchannel support"
3103	depends on MACH_DECSTATION
3104	help
3105	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3106	  processors.  TURBOchannel programming specifications are available
3107	  at:
3108	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3109	  and:
3110	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3111	  Linux driver support status is documented at:
3112	  <http://www.linux-mips.org/wiki/DECstation>
3113
3114config MMU
3115	bool
3116	default y
3117
3118config ARCH_MMAP_RND_BITS_MIN
3119	default 12 if 64BIT
3120	default 8
3121
3122config ARCH_MMAP_RND_BITS_MAX
3123	default 18 if 64BIT
3124	default 15
3125
3126config ARCH_MMAP_RND_COMPAT_BITS_MIN
3127	default 8
3128
3129config ARCH_MMAP_RND_COMPAT_BITS_MAX
3130	default 15
3131
3132config I8253
3133	bool
3134	select CLKSRC_I8253
3135	select CLKEVT_I8253
3136	select MIPS_EXTERNAL_TIMER
3137
3138config ZONE_DMA
3139	bool
3140
3141config ZONE_DMA32
3142	bool
3143
3144endmenu
3145
3146config TRAD_SIGNALS
3147	bool
3148
3149config MIPS32_COMPAT
3150	bool
3151
3152config COMPAT
3153	bool
3154
3155config SYSVIPC_COMPAT
3156	bool
3157
3158config MIPS32_O32
3159	bool "Kernel support for o32 binaries"
3160	depends on 64BIT
3161	select ARCH_WANT_OLD_COMPAT_IPC
3162	select COMPAT
3163	select MIPS32_COMPAT
3164	select SYSVIPC_COMPAT if SYSVIPC
3165	help
3166	  Select this option if you want to run o32 binaries.  These are pure
3167	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3168	  existing binaries are in this format.
3169
3170	  If unsure, say Y.
3171
3172config MIPS32_N32
3173	bool "Kernel support for n32 binaries"
3174	depends on 64BIT
3175	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3176	select COMPAT
3177	select MIPS32_COMPAT
3178	select SYSVIPC_COMPAT if SYSVIPC
3179	help
3180	  Select this option if you want to run n32 binaries.  These are
3181	  64-bit binaries using 32-bit quantities for addressing and certain
3182	  data that would normally be 64-bit.  They are used in special
3183	  cases.
3184
3185	  If unsure, say N.
3186
3187config BINFMT_ELF32
3188	bool
3189	default y if MIPS32_O32 || MIPS32_N32
3190	select ELFCORE
3191
3192menu "Power management options"
3193
3194config ARCH_HIBERNATION_POSSIBLE
3195	def_bool y
3196	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3197
3198config ARCH_SUSPEND_POSSIBLE
3199	def_bool y
3200	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3201
3202source "kernel/power/Kconfig"
3203
3204endmenu
3205
3206config MIPS_EXTERNAL_TIMER
3207	bool
3208
3209menu "CPU Power Management"
3210
3211if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3212source "drivers/cpufreq/Kconfig"
3213endif
3214
3215source "drivers/cpuidle/Kconfig"
3216
3217endmenu
3218
3219source "drivers/firmware/Kconfig"
3220
3221source "arch/mips/kvm/Kconfig"
3222