xref: /openbmc/linux/arch/mips/Kconfig (revision 176f011b)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
6	select ARCH_CLOCKSOURCE_DATA
7	select ARCH_DISCARD_MEMBLOCK
8	select ARCH_HAS_ELF_RANDOMIZE
9	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
10	select ARCH_HAS_UBSAN_SANITIZE_ALL
11	select ARCH_SUPPORTS_UPROBES
12	select ARCH_USE_BUILTIN_BSWAP
13	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
14	select ARCH_USE_QUEUED_RWLOCKS
15	select ARCH_USE_QUEUED_SPINLOCKS
16	select ARCH_WANT_IPC_PARSE_VERSION
17	select BUILDTIME_EXTABLE_SORT
18	select CLONE_BACKWARDS
19	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
20	select CPU_PM if CPU_IDLE
21	select GENERIC_ATOMIC64 if !64BIT
22	select GENERIC_CLOCKEVENTS
23	select GENERIC_CMOS_UPDATE
24	select GENERIC_CPU_AUTOPROBE
25	select GENERIC_IOMAP
26	select GENERIC_IRQ_PROBE
27	select GENERIC_IRQ_SHOW
28	select GENERIC_ISA_DMA if EISA
29	select GENERIC_LIB_ASHLDI3
30	select GENERIC_LIB_ASHRDI3
31	select GENERIC_LIB_CMPDI2
32	select GENERIC_LIB_LSHRDI3
33	select GENERIC_LIB_UCMPDI2
34	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
35	select GENERIC_SMP_IDLE_THREAD
36	select GENERIC_TIME_VSYSCALL
37	select HANDLE_DOMAIN_IRQ
38	select HAVE_ARCH_COMPILER_H
39	select HAVE_ARCH_JUMP_LABEL
40	select HAVE_ARCH_KGDB
41	select HAVE_ARCH_MMAP_RND_BITS if MMU
42	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
43	select HAVE_ARCH_SECCOMP_FILTER
44	select HAVE_ARCH_TRACEHOOK
45	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
46	select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
47	select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
48	select HAVE_CONTEXT_TRACKING
49	select HAVE_COPY_THREAD_TLS
50	select HAVE_C_RECORDMCOUNT
51	select HAVE_DEBUG_KMEMLEAK
52	select HAVE_DEBUG_STACKOVERFLOW
53	select HAVE_DMA_CONTIGUOUS
54	select HAVE_DYNAMIC_FTRACE
55	select HAVE_EXIT_THREAD
56	select HAVE_FTRACE_MCOUNT_RECORD
57	select HAVE_FUNCTION_GRAPH_TRACER
58	select HAVE_FUNCTION_TRACER
59	select HAVE_GENERIC_DMA_COHERENT
60	select HAVE_IDE
61	select HAVE_IOREMAP_PROT
62	select HAVE_IRQ_EXIT_ON_IRQ_STACK
63	select HAVE_IRQ_TIME_ACCOUNTING
64	select HAVE_KPROBES
65	select HAVE_KRETPROBES
66	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
67	select HAVE_MEMBLOCK_NODE_MAP
68	select HAVE_MOD_ARCH_SPECIFIC
69	select HAVE_NMI
70	select HAVE_OPROFILE
71	select HAVE_PERF_EVENTS
72	select HAVE_REGS_AND_STACK_ACCESS_API
73	select HAVE_RSEQ
74	select HAVE_STACKPROTECTOR
75	select HAVE_SYSCALL_TRACEPOINTS
76	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
77	select IRQ_FORCED_THREADING
78	select ISA if EISA
79	select MODULES_USE_ELF_RELA if MODULES && 64BIT
80	select MODULES_USE_ELF_REL if MODULES
81	select PERF_USE_VMALLOC
82	select RTC_LIB
83	select SYSCTL_EXCEPTION_TRACE
84	select VIRT_TO_BUS
85
86menu "Machine selection"
87
88choice
89	prompt "System type"
90	default MIPS_GENERIC
91
92config MIPS_GENERIC
93	bool "Generic board-agnostic MIPS kernel"
94	select BOOT_RAW
95	select BUILTIN_DTB
96	select CEVT_R4K
97	select CLKSRC_MIPS_GIC
98	select COMMON_CLK
99	select CPU_MIPSR2_IRQ_VI
100	select CPU_MIPSR2_IRQ_EI
101	select CSRC_R4K
102	select DMA_PERDEV_COHERENT
103	select HAVE_PCI
104	select IRQ_MIPS_CPU
105	select LIBFDT
106	select MIPS_AUTO_PFN_OFFSET
107	select MIPS_CPU_SCACHE
108	select MIPS_GIC
109	select MIPS_L1_CACHE_SHIFT_7
110	select NO_EXCEPT_FILL
111	select PCI_DRIVERS_GENERIC
112	select PINCTRL
113	select SMP_UP if SMP
114	select SWAP_IO_SPACE
115	select SYS_HAS_CPU_MIPS32_R1
116	select SYS_HAS_CPU_MIPS32_R2
117	select SYS_HAS_CPU_MIPS32_R6
118	select SYS_HAS_CPU_MIPS64_R1
119	select SYS_HAS_CPU_MIPS64_R2
120	select SYS_HAS_CPU_MIPS64_R6
121	select SYS_SUPPORTS_32BIT_KERNEL
122	select SYS_SUPPORTS_64BIT_KERNEL
123	select SYS_SUPPORTS_BIG_ENDIAN
124	select SYS_SUPPORTS_HIGHMEM
125	select SYS_SUPPORTS_LITTLE_ENDIAN
126	select SYS_SUPPORTS_MICROMIPS
127	select SYS_SUPPORTS_MIPS_CPS
128	select SYS_SUPPORTS_MIPS16
129	select SYS_SUPPORTS_MULTITHREADING
130	select SYS_SUPPORTS_RELOCATABLE
131	select SYS_SUPPORTS_SMARTMIPS
132	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
133	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
134	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
135	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
136	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
137	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
138	select USE_OF
139	select UHI_BOOT
140	help
141	  Select this to build a kernel which aims to support multiple boards,
142	  generally using a flattened device tree passed from the bootloader
143	  using the boot protocol defined in the UHI (Unified Hosting
144	  Interface) specification.
145
146config MIPS_ALCHEMY
147	bool "Alchemy processor based machines"
148	select PHYS_ADDR_T_64BIT
149	select CEVT_R4K
150	select CSRC_R4K
151	select IRQ_MIPS_CPU
152	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
153	select SYS_HAS_CPU_MIPS32_R1
154	select SYS_SUPPORTS_32BIT_KERNEL
155	select SYS_SUPPORTS_APM_EMULATION
156	select GPIOLIB
157	select SYS_SUPPORTS_ZBOOT
158	select COMMON_CLK
159
160config AR7
161	bool "Texas Instruments AR7"
162	select BOOT_ELF32
163	select DMA_NONCOHERENT
164	select CEVT_R4K
165	select CSRC_R4K
166	select IRQ_MIPS_CPU
167	select NO_EXCEPT_FILL
168	select SWAP_IO_SPACE
169	select SYS_HAS_CPU_MIPS32_R1
170	select SYS_HAS_EARLY_PRINTK
171	select SYS_SUPPORTS_32BIT_KERNEL
172	select SYS_SUPPORTS_LITTLE_ENDIAN
173	select SYS_SUPPORTS_MIPS16
174	select SYS_SUPPORTS_ZBOOT_UART16550
175	select GPIOLIB
176	select VLYNQ
177	select HAVE_CLK
178	help
179	  Support for the Texas Instruments AR7 System-on-a-Chip
180	  family: TNETD7100, 7200 and 7300.
181
182config ATH25
183	bool "Atheros AR231x/AR531x SoC support"
184	select CEVT_R4K
185	select CSRC_R4K
186	select DMA_NONCOHERENT
187	select IRQ_MIPS_CPU
188	select IRQ_DOMAIN
189	select SYS_HAS_CPU_MIPS32_R1
190	select SYS_SUPPORTS_BIG_ENDIAN
191	select SYS_SUPPORTS_32BIT_KERNEL
192	select SYS_HAS_EARLY_PRINTK
193	help
194	  Support for Atheros AR231x and Atheros AR531x based boards
195
196config ATH79
197	bool "Atheros AR71XX/AR724X/AR913X based boards"
198	select ARCH_HAS_RESET_CONTROLLER
199	select BOOT_RAW
200	select CEVT_R4K
201	select CSRC_R4K
202	select DMA_NONCOHERENT
203	select GPIOLIB
204	select PINCTRL
205	select HAVE_CLK
206	select COMMON_CLK
207	select CLKDEV_LOOKUP
208	select IRQ_MIPS_CPU
209	select MIPS_MACHINE
210	select SYS_HAS_CPU_MIPS32_R2
211	select SYS_HAS_EARLY_PRINTK
212	select SYS_SUPPORTS_32BIT_KERNEL
213	select SYS_SUPPORTS_BIG_ENDIAN
214	select SYS_SUPPORTS_MIPS16
215	select SYS_SUPPORTS_ZBOOT_UART_PROM
216	select USE_OF
217	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
218	help
219	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
220
221config BMIPS_GENERIC
222	bool "Broadcom Generic BMIPS kernel"
223	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
224	select ARCH_HAS_PHYS_TO_DMA
225	select BOOT_RAW
226	select NO_EXCEPT_FILL
227	select USE_OF
228	select CEVT_R4K
229	select CSRC_R4K
230	select SYNC_R4K
231	select COMMON_CLK
232	select BCM6345_L1_IRQ
233	select BCM7038_L1_IRQ
234	select BCM7120_L2_IRQ
235	select BRCMSTB_L2_IRQ
236	select IRQ_MIPS_CPU
237	select DMA_NONCOHERENT
238	select SYS_SUPPORTS_32BIT_KERNEL
239	select SYS_SUPPORTS_LITTLE_ENDIAN
240	select SYS_SUPPORTS_BIG_ENDIAN
241	select SYS_SUPPORTS_HIGHMEM
242	select SYS_HAS_CPU_BMIPS32_3300
243	select SYS_HAS_CPU_BMIPS4350
244	select SYS_HAS_CPU_BMIPS4380
245	select SYS_HAS_CPU_BMIPS5000
246	select SWAP_IO_SPACE
247	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
248	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
249	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
250	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
251	select HARDIRQS_SW_RESEND
252	help
253	  Build a generic DT-based kernel image that boots on select
254	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
255	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
256	  must be set appropriately for your board.
257
258config BCM47XX
259	bool "Broadcom BCM47XX based boards"
260	select BOOT_RAW
261	select CEVT_R4K
262	select CSRC_R4K
263	select DMA_NONCOHERENT
264	select HAVE_PCI
265	select IRQ_MIPS_CPU
266	select SYS_HAS_CPU_MIPS32_R1
267	select NO_EXCEPT_FILL
268	select SYS_SUPPORTS_32BIT_KERNEL
269	select SYS_SUPPORTS_LITTLE_ENDIAN
270	select SYS_SUPPORTS_MIPS16
271	select SYS_SUPPORTS_ZBOOT
272	select SYS_HAS_EARLY_PRINTK
273	select USE_GENERIC_EARLY_PRINTK_8250
274	select GPIOLIB
275	select LEDS_GPIO_REGISTER
276	select BCM47XX_NVRAM
277	select BCM47XX_SPROM
278	select BCM47XX_SSB if !BCM47XX_BCMA
279	help
280	 Support for BCM47XX based boards
281
282config BCM63XX
283	bool "Broadcom BCM63XX based boards"
284	select BOOT_RAW
285	select CEVT_R4K
286	select CSRC_R4K
287	select SYNC_R4K
288	select DMA_NONCOHERENT
289	select IRQ_MIPS_CPU
290	select SYS_SUPPORTS_32BIT_KERNEL
291	select SYS_SUPPORTS_BIG_ENDIAN
292	select SYS_HAS_EARLY_PRINTK
293	select SWAP_IO_SPACE
294	select GPIOLIB
295	select HAVE_CLK
296	select MIPS_L1_CACHE_SHIFT_4
297	select CLKDEV_LOOKUP
298	help
299	 Support for BCM63XX based boards
300
301config MIPS_COBALT
302	bool "Cobalt Server"
303	select CEVT_R4K
304	select CSRC_R4K
305	select CEVT_GT641XX
306	select DMA_NONCOHERENT
307	select FORCE_PCI
308	select I8253
309	select I8259
310	select IRQ_MIPS_CPU
311	select IRQ_GT641XX
312	select PCI_GT64XXX_PCI0
313	select SYS_HAS_CPU_NEVADA
314	select SYS_HAS_EARLY_PRINTK
315	select SYS_SUPPORTS_32BIT_KERNEL
316	select SYS_SUPPORTS_64BIT_KERNEL
317	select SYS_SUPPORTS_LITTLE_ENDIAN
318	select USE_GENERIC_EARLY_PRINTK_8250
319
320config MACH_DECSTATION
321	bool "DECstations"
322	select BOOT_ELF32
323	select CEVT_DS1287
324	select CEVT_R4K if CPU_R4X00
325	select CSRC_IOASIC
326	select CSRC_R4K if CPU_R4X00
327	select CPU_DADDI_WORKAROUNDS if 64BIT
328	select CPU_R4000_WORKAROUNDS if 64BIT
329	select CPU_R4400_WORKAROUNDS if 64BIT
330	select DMA_NONCOHERENT
331	select NO_IOPORT_MAP
332	select IRQ_MIPS_CPU
333	select SYS_HAS_CPU_R3000
334	select SYS_HAS_CPU_R4X00
335	select SYS_SUPPORTS_32BIT_KERNEL
336	select SYS_SUPPORTS_64BIT_KERNEL
337	select SYS_SUPPORTS_LITTLE_ENDIAN
338	select SYS_SUPPORTS_128HZ
339	select SYS_SUPPORTS_256HZ
340	select SYS_SUPPORTS_1024HZ
341	select MIPS_L1_CACHE_SHIFT_4
342	help
343	  This enables support for DEC's MIPS based workstations.  For details
344	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
345	  DECstation porting pages on <http://decstation.unix-ag.org/>.
346
347	  If you have one of the following DECstation Models you definitely
348	  want to choose R4xx0 for the CPU Type:
349
350		DECstation 5000/50
351		DECstation 5000/150
352		DECstation 5000/260
353		DECsystem 5900/260
354
355	  otherwise choose R3000.
356
357config MACH_JAZZ
358	bool "Jazz family of machines"
359	select ARCH_MIGHT_HAVE_PC_PARPORT
360	select ARCH_MIGHT_HAVE_PC_SERIO
361	select FW_ARC
362	select FW_ARC32
363	select ARCH_MAY_HAVE_PC_FDC
364	select CEVT_R4K
365	select CSRC_R4K
366	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
367	select GENERIC_ISA_DMA
368	select HAVE_PCSPKR_PLATFORM
369	select IRQ_MIPS_CPU
370	select I8253
371	select I8259
372	select ISA
373	select SYS_HAS_CPU_R4X00
374	select SYS_SUPPORTS_32BIT_KERNEL
375	select SYS_SUPPORTS_64BIT_KERNEL
376	select SYS_SUPPORTS_100HZ
377	help
378	 This a family of machines based on the MIPS R4030 chipset which was
379	 used by several vendors to build RISC/os and Windows NT workstations.
380	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
381	 Olivetti M700-10 workstations.
382
383config MACH_INGENIC
384	bool "Ingenic SoC based machines"
385	select SYS_SUPPORTS_32BIT_KERNEL
386	select SYS_SUPPORTS_LITTLE_ENDIAN
387	select SYS_SUPPORTS_ZBOOT_UART16550
388	select DMA_NONCOHERENT
389	select IRQ_MIPS_CPU
390	select PINCTRL
391	select GPIOLIB
392	select COMMON_CLK
393	select GENERIC_IRQ_CHIP
394	select BUILTIN_DTB
395	select USE_OF
396	select LIBFDT
397
398config LANTIQ
399	bool "Lantiq based platforms"
400	select DMA_NONCOHERENT
401	select IRQ_MIPS_CPU
402	select CEVT_R4K
403	select CSRC_R4K
404	select SYS_HAS_CPU_MIPS32_R1
405	select SYS_HAS_CPU_MIPS32_R2
406	select SYS_SUPPORTS_BIG_ENDIAN
407	select SYS_SUPPORTS_32BIT_KERNEL
408	select SYS_SUPPORTS_MIPS16
409	select SYS_SUPPORTS_MULTITHREADING
410	select SYS_SUPPORTS_VPE_LOADER
411	select SYS_HAS_EARLY_PRINTK
412	select GPIOLIB
413	select SWAP_IO_SPACE
414	select BOOT_RAW
415	select CLKDEV_LOOKUP
416	select USE_OF
417	select PINCTRL
418	select PINCTRL_LANTIQ
419	select ARCH_HAS_RESET_CONTROLLER
420	select RESET_CONTROLLER
421
422config LASAT
423	bool "LASAT Networks platforms"
424	select CEVT_R4K
425	select CRC32
426	select CSRC_R4K
427	select DMA_NONCOHERENT
428	select SYS_HAS_EARLY_PRINTK
429	select HAVE_PCI
430	select IRQ_MIPS_CPU
431	select PCI_GT64XXX_PCI0
432	select MIPS_NILE4
433	select R5000_CPU_SCACHE
434	select SYS_HAS_CPU_R5000
435	select SYS_SUPPORTS_32BIT_KERNEL
436	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
437	select SYS_SUPPORTS_LITTLE_ENDIAN
438
439config MACH_LOONGSON32
440	bool "Loongson-1 family of machines"
441	select SYS_SUPPORTS_ZBOOT
442	help
443	  This enables support for the Loongson-1 family of machines.
444
445	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
446	  the Institute of Computing Technology (ICT), Chinese Academy of
447	  Sciences (CAS).
448
449config MACH_LOONGSON64
450	bool "Loongson-2/3 family of machines"
451	select SYS_SUPPORTS_ZBOOT
452	help
453	  This enables the support of Loongson-2/3 family of machines.
454
455	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
456	  family of multi-core CPUs. They are both 64-bit general-purpose
457	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
458	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
459	  in the People's Republic of China. The chief architect is Professor
460	  Weiwu Hu.
461
462config MACH_PISTACHIO
463	bool "IMG Pistachio SoC based boards"
464	select BOOT_ELF32
465	select BOOT_RAW
466	select CEVT_R4K
467	select CLKSRC_MIPS_GIC
468	select COMMON_CLK
469	select CSRC_R4K
470	select DMA_NONCOHERENT
471	select GPIOLIB
472	select IRQ_MIPS_CPU
473	select LIBFDT
474	select MFD_SYSCON
475	select MIPS_CPU_SCACHE
476	select MIPS_GIC
477	select PINCTRL
478	select REGULATOR
479	select SYS_HAS_CPU_MIPS32_R2
480	select SYS_SUPPORTS_32BIT_KERNEL
481	select SYS_SUPPORTS_LITTLE_ENDIAN
482	select SYS_SUPPORTS_MIPS_CPS
483	select SYS_SUPPORTS_MULTITHREADING
484	select SYS_SUPPORTS_RELOCATABLE
485	select SYS_SUPPORTS_ZBOOT
486	select SYS_HAS_EARLY_PRINTK
487	select USE_GENERIC_EARLY_PRINTK_8250
488	select USE_OF
489	help
490	  This enables support for the IMG Pistachio SoC platform.
491
492config MIPS_MALTA
493	bool "MIPS Malta board"
494	select ARCH_MAY_HAVE_PC_FDC
495	select ARCH_MIGHT_HAVE_PC_PARPORT
496	select ARCH_MIGHT_HAVE_PC_SERIO
497	select BOOT_ELF32
498	select BOOT_RAW
499	select BUILTIN_DTB
500	select CEVT_R4K
501	select CLKSRC_MIPS_GIC
502	select COMMON_CLK
503	select CSRC_R4K
504	select DMA_MAYBE_COHERENT
505	select GENERIC_ISA_DMA
506	select HAVE_PCSPKR_PLATFORM
507	select HAVE_PCI
508	select I8253
509	select I8259
510	select IRQ_MIPS_CPU
511	select LIBFDT
512	select MIPS_BONITO64
513	select MIPS_CPU_SCACHE
514	select MIPS_GIC
515	select MIPS_L1_CACHE_SHIFT_6
516	select MIPS_MSC
517	select PCI_GT64XXX_PCI0
518	select SMP_UP if SMP
519	select SWAP_IO_SPACE
520	select SYS_HAS_CPU_MIPS32_R1
521	select SYS_HAS_CPU_MIPS32_R2
522	select SYS_HAS_CPU_MIPS32_R3_5
523	select SYS_HAS_CPU_MIPS32_R5
524	select SYS_HAS_CPU_MIPS32_R6
525	select SYS_HAS_CPU_MIPS64_R1
526	select SYS_HAS_CPU_MIPS64_R2
527	select SYS_HAS_CPU_MIPS64_R6
528	select SYS_HAS_CPU_NEVADA
529	select SYS_HAS_CPU_RM7000
530	select SYS_SUPPORTS_32BIT_KERNEL
531	select SYS_SUPPORTS_64BIT_KERNEL
532	select SYS_SUPPORTS_BIG_ENDIAN
533	select SYS_SUPPORTS_HIGHMEM
534	select SYS_SUPPORTS_LITTLE_ENDIAN
535	select SYS_SUPPORTS_MICROMIPS
536	select SYS_SUPPORTS_MIPS16
537	select SYS_SUPPORTS_MIPS_CMP
538	select SYS_SUPPORTS_MIPS_CPS
539	select SYS_SUPPORTS_MULTITHREADING
540	select SYS_SUPPORTS_RELOCATABLE
541	select SYS_SUPPORTS_SMARTMIPS
542	select SYS_SUPPORTS_VPE_LOADER
543	select SYS_SUPPORTS_ZBOOT
544	select USE_OF
545	select ZONE_DMA32 if 64BIT
546	help
547	  This enables support for the MIPS Technologies Malta evaluation
548	  board.
549
550config MACH_PIC32
551	bool "Microchip PIC32 Family"
552	help
553	  This enables support for the Microchip PIC32 family of platforms.
554
555	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
556	  microcontrollers.
557
558config NEC_MARKEINS
559	bool "NEC EMMA2RH Mark-eins board"
560	select SOC_EMMA2RH
561	select HAVE_PCI
562	help
563	  This enables support for the NEC Electronics Mark-eins boards.
564
565config MACH_VR41XX
566	bool "NEC VR4100 series based machines"
567	select CEVT_R4K
568	select CSRC_R4K
569	select SYS_HAS_CPU_VR41XX
570	select SYS_SUPPORTS_MIPS16
571	select GPIOLIB
572
573config NXP_STB220
574	bool "NXP STB220 board"
575	select SOC_PNX833X
576	help
577	 Support for NXP Semiconductors STB220 Development Board.
578
579config NXP_STB225
580	bool "NXP 225 board"
581	select SOC_PNX833X
582	select SOC_PNX8335
583	help
584	 Support for NXP Semiconductors STB225 Development Board.
585
586config PMC_MSP
587	bool "PMC-Sierra MSP chipsets"
588	select CEVT_R4K
589	select CSRC_R4K
590	select DMA_NONCOHERENT
591	select SWAP_IO_SPACE
592	select NO_EXCEPT_FILL
593	select BOOT_RAW
594	select SYS_HAS_CPU_MIPS32_R1
595	select SYS_HAS_CPU_MIPS32_R2
596	select SYS_SUPPORTS_32BIT_KERNEL
597	select SYS_SUPPORTS_BIG_ENDIAN
598	select SYS_SUPPORTS_MIPS16
599	select IRQ_MIPS_CPU
600	select SERIAL_8250
601	select SERIAL_8250_CONSOLE
602	select USB_EHCI_BIG_ENDIAN_MMIO
603	select USB_EHCI_BIG_ENDIAN_DESC
604	help
605	  This adds support for the PMC-Sierra family of Multi-Service
606	  Processor System-On-A-Chips.  These parts include a number
607	  of integrated peripherals, interfaces and DSPs in addition to
608	  a variety of MIPS cores.
609
610config RALINK
611	bool "Ralink based machines"
612	select CEVT_R4K
613	select CSRC_R4K
614	select BOOT_RAW
615	select DMA_NONCOHERENT
616	select IRQ_MIPS_CPU
617	select USE_OF
618	select SYS_HAS_CPU_MIPS32_R1
619	select SYS_HAS_CPU_MIPS32_R2
620	select SYS_SUPPORTS_32BIT_KERNEL
621	select SYS_SUPPORTS_LITTLE_ENDIAN
622	select SYS_SUPPORTS_MIPS16
623	select SYS_HAS_EARLY_PRINTK
624	select CLKDEV_LOOKUP
625	select ARCH_HAS_RESET_CONTROLLER
626	select RESET_CONTROLLER
627
628config SGI_IP22
629	bool "SGI IP22 (Indy/Indigo2)"
630	select FW_ARC
631	select FW_ARC32
632	select ARCH_MIGHT_HAVE_PC_SERIO
633	select BOOT_ELF32
634	select CEVT_R4K
635	select CSRC_R4K
636	select DEFAULT_SGI_PARTITION
637	select DMA_NONCOHERENT
638	select HAVE_EISA
639	select I8253
640	select I8259
641	select IP22_CPU_SCACHE
642	select IRQ_MIPS_CPU
643	select GENERIC_ISA_DMA_SUPPORT_BROKEN
644	select SGI_HAS_I8042
645	select SGI_HAS_INDYDOG
646	select SGI_HAS_HAL2
647	select SGI_HAS_SEEQ
648	select SGI_HAS_WD93
649	select SGI_HAS_ZILOG
650	select SWAP_IO_SPACE
651	select SYS_HAS_CPU_R4X00
652	select SYS_HAS_CPU_R5000
653	#
654	# Disable EARLY_PRINTK for now since it leads to overwritten prom
655	# memory during early boot on some machines.
656	#
657	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
658	# for a more details discussion
659	#
660	# select SYS_HAS_EARLY_PRINTK
661	select SYS_SUPPORTS_32BIT_KERNEL
662	select SYS_SUPPORTS_64BIT_KERNEL
663	select SYS_SUPPORTS_BIG_ENDIAN
664	select MIPS_L1_CACHE_SHIFT_7
665	help
666	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
667	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
668	  that runs on these, say Y here.
669
670config SGI_IP27
671	bool "SGI IP27 (Origin200/2000)"
672	select ARCH_HAS_PHYS_TO_DMA
673	select FW_ARC
674	select FW_ARC64
675	select BOOT_ELF64
676	select DEFAULT_SGI_PARTITION
677	select SYS_HAS_EARLY_PRINTK
678	select HAVE_PCI
679	select NR_CPUS_DEFAULT_64
680	select SYS_HAS_CPU_R10000
681	select SYS_SUPPORTS_64BIT_KERNEL
682	select SYS_SUPPORTS_BIG_ENDIAN
683	select SYS_SUPPORTS_NUMA
684	select SYS_SUPPORTS_SMP
685	select MIPS_L1_CACHE_SHIFT_7
686	help
687	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
688	  workstations.  To compile a Linux kernel that runs on these, say Y
689	  here.
690
691config SGI_IP28
692	bool "SGI IP28 (Indigo2 R10k)"
693	select FW_ARC
694	select FW_ARC64
695	select ARCH_MIGHT_HAVE_PC_SERIO
696	select BOOT_ELF64
697	select CEVT_R4K
698	select CSRC_R4K
699	select DEFAULT_SGI_PARTITION
700	select DMA_NONCOHERENT
701	select GENERIC_ISA_DMA_SUPPORT_BROKEN
702	select IRQ_MIPS_CPU
703	select HAVE_EISA
704	select I8253
705	select I8259
706	select SGI_HAS_I8042
707	select SGI_HAS_INDYDOG
708	select SGI_HAS_HAL2
709	select SGI_HAS_SEEQ
710	select SGI_HAS_WD93
711	select SGI_HAS_ZILOG
712	select SWAP_IO_SPACE
713	select SYS_HAS_CPU_R10000
714	#
715	# Disable EARLY_PRINTK for now since it leads to overwritten prom
716	# memory during early boot on some machines.
717	#
718	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
719	# for a more details discussion
720	#
721	# select SYS_HAS_EARLY_PRINTK
722	select SYS_SUPPORTS_64BIT_KERNEL
723	select SYS_SUPPORTS_BIG_ENDIAN
724	select MIPS_L1_CACHE_SHIFT_7
725      help
726        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
727        kernel that runs on these, say Y here.
728
729config SGI_IP32
730	bool "SGI IP32 (O2)"
731	select ARCH_HAS_PHYS_TO_DMA
732	select FW_ARC
733	select FW_ARC32
734	select BOOT_ELF32
735	select CEVT_R4K
736	select CSRC_R4K
737	select DMA_NONCOHERENT
738	select HAVE_PCI
739	select IRQ_MIPS_CPU
740	select R5000_CPU_SCACHE
741	select RM7000_CPU_SCACHE
742	select SYS_HAS_CPU_R5000
743	select SYS_HAS_CPU_R10000 if BROKEN
744	select SYS_HAS_CPU_RM7000
745	select SYS_HAS_CPU_NEVADA
746	select SYS_SUPPORTS_64BIT_KERNEL
747	select SYS_SUPPORTS_BIG_ENDIAN
748	help
749	  If you want this kernel to run on SGI O2 workstation, say Y here.
750
751config SIBYTE_CRHINE
752	bool "Sibyte BCM91120C-CRhine"
753	select BOOT_ELF32
754	select SIBYTE_BCM1120
755	select SWAP_IO_SPACE
756	select SYS_HAS_CPU_SB1
757	select SYS_SUPPORTS_BIG_ENDIAN
758	select SYS_SUPPORTS_LITTLE_ENDIAN
759
760config SIBYTE_CARMEL
761	bool "Sibyte BCM91120x-Carmel"
762	select BOOT_ELF32
763	select SIBYTE_BCM1120
764	select SWAP_IO_SPACE
765	select SYS_HAS_CPU_SB1
766	select SYS_SUPPORTS_BIG_ENDIAN
767	select SYS_SUPPORTS_LITTLE_ENDIAN
768
769config SIBYTE_CRHONE
770	bool "Sibyte BCM91125C-CRhone"
771	select BOOT_ELF32
772	select SIBYTE_BCM1125
773	select SWAP_IO_SPACE
774	select SYS_HAS_CPU_SB1
775	select SYS_SUPPORTS_BIG_ENDIAN
776	select SYS_SUPPORTS_HIGHMEM
777	select SYS_SUPPORTS_LITTLE_ENDIAN
778
779config SIBYTE_RHONE
780	bool "Sibyte BCM91125E-Rhone"
781	select BOOT_ELF32
782	select SIBYTE_BCM1125H
783	select SWAP_IO_SPACE
784	select SYS_HAS_CPU_SB1
785	select SYS_SUPPORTS_BIG_ENDIAN
786	select SYS_SUPPORTS_LITTLE_ENDIAN
787
788config SIBYTE_SWARM
789	bool "Sibyte BCM91250A-SWARM"
790	select BOOT_ELF32
791	select HAVE_PATA_PLATFORM
792	select SIBYTE_SB1250
793	select SWAP_IO_SPACE
794	select SYS_HAS_CPU_SB1
795	select SYS_SUPPORTS_BIG_ENDIAN
796	select SYS_SUPPORTS_HIGHMEM
797	select SYS_SUPPORTS_LITTLE_ENDIAN
798	select ZONE_DMA32 if 64BIT
799	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
800
801config SIBYTE_LITTLESUR
802	bool "Sibyte BCM91250C2-LittleSur"
803	select BOOT_ELF32
804	select HAVE_PATA_PLATFORM
805	select SIBYTE_SB1250
806	select SWAP_IO_SPACE
807	select SYS_HAS_CPU_SB1
808	select SYS_SUPPORTS_BIG_ENDIAN
809	select SYS_SUPPORTS_HIGHMEM
810	select SYS_SUPPORTS_LITTLE_ENDIAN
811	select ZONE_DMA32 if 64BIT
812
813config SIBYTE_SENTOSA
814	bool "Sibyte BCM91250E-Sentosa"
815	select BOOT_ELF32
816	select SIBYTE_SB1250
817	select SWAP_IO_SPACE
818	select SYS_HAS_CPU_SB1
819	select SYS_SUPPORTS_BIG_ENDIAN
820	select SYS_SUPPORTS_LITTLE_ENDIAN
821	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
822
823config SIBYTE_BIGSUR
824	bool "Sibyte BCM91480B-BigSur"
825	select BOOT_ELF32
826	select NR_CPUS_DEFAULT_4
827	select SIBYTE_BCM1x80
828	select SWAP_IO_SPACE
829	select SYS_HAS_CPU_SB1
830	select SYS_SUPPORTS_BIG_ENDIAN
831	select SYS_SUPPORTS_HIGHMEM
832	select SYS_SUPPORTS_LITTLE_ENDIAN
833	select ZONE_DMA32 if 64BIT
834	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
835
836config SNI_RM
837	bool "SNI RM200/300/400"
838	select FW_ARC if CPU_LITTLE_ENDIAN
839	select FW_ARC32 if CPU_LITTLE_ENDIAN
840	select FW_SNIPROM if CPU_BIG_ENDIAN
841	select ARCH_MAY_HAVE_PC_FDC
842	select ARCH_MIGHT_HAVE_PC_PARPORT
843	select ARCH_MIGHT_HAVE_PC_SERIO
844	select BOOT_ELF32
845	select CEVT_R4K
846	select CSRC_R4K
847	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
848	select DMA_NONCOHERENT
849	select GENERIC_ISA_DMA
850	select HAVE_EISA
851	select HAVE_PCSPKR_PLATFORM
852	select HAVE_PCI
853	select IRQ_MIPS_CPU
854	select I8253
855	select I8259
856	select ISA
857	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
858	select SYS_HAS_CPU_R4X00
859	select SYS_HAS_CPU_R5000
860	select SYS_HAS_CPU_R10000
861	select R5000_CPU_SCACHE
862	select SYS_HAS_EARLY_PRINTK
863	select SYS_SUPPORTS_32BIT_KERNEL
864	select SYS_SUPPORTS_64BIT_KERNEL
865	select SYS_SUPPORTS_BIG_ENDIAN
866	select SYS_SUPPORTS_HIGHMEM
867	select SYS_SUPPORTS_LITTLE_ENDIAN
868	help
869	  The SNI RM200/300/400 are MIPS-based machines manufactured by
870	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
871	  Technology and now in turn merged with Fujitsu.  Say Y here to
872	  support this machine type.
873
874config MACH_TX39XX
875	bool "Toshiba TX39 series based machines"
876
877config MACH_TX49XX
878	bool "Toshiba TX49 series based machines"
879
880config MIKROTIK_RB532
881	bool "Mikrotik RB532 boards"
882	select CEVT_R4K
883	select CSRC_R4K
884	select DMA_NONCOHERENT
885	select HAVE_PCI
886	select IRQ_MIPS_CPU
887	select SYS_HAS_CPU_MIPS32_R1
888	select SYS_SUPPORTS_32BIT_KERNEL
889	select SYS_SUPPORTS_LITTLE_ENDIAN
890	select SWAP_IO_SPACE
891	select BOOT_RAW
892	select GPIOLIB
893	select MIPS_L1_CACHE_SHIFT_4
894	help
895	  Support the Mikrotik(tm) RouterBoard 532 series,
896	  based on the IDT RC32434 SoC.
897
898config CAVIUM_OCTEON_SOC
899	bool "Cavium Networks Octeon SoC based boards"
900	select CEVT_R4K
901	select ARCH_HAS_PHYS_TO_DMA
902	select HAVE_RAPIDIO
903	select PHYS_ADDR_T_64BIT
904	select SYS_SUPPORTS_64BIT_KERNEL
905	select SYS_SUPPORTS_BIG_ENDIAN
906	select EDAC_SUPPORT
907	select EDAC_ATOMIC_SCRUB
908	select SYS_SUPPORTS_LITTLE_ENDIAN
909	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
910	select SYS_HAS_EARLY_PRINTK
911	select SYS_HAS_CPU_CAVIUM_OCTEON
912	select HAVE_PCI
913	select ZONE_DMA32
914	select HOLES_IN_ZONE
915	select GPIOLIB
916	select LIBFDT
917	select USE_OF
918	select ARCH_SPARSEMEM_ENABLE
919	select SYS_SUPPORTS_SMP
920	select NR_CPUS_DEFAULT_64
921	select MIPS_NR_CPU_NR_MAP_1024
922	select BUILTIN_DTB
923	select MTD_COMPLEX_MAPPINGS
924	select SWIOTLB
925	select SYS_SUPPORTS_RELOCATABLE
926	help
927	  This option supports all of the Octeon reference boards from Cavium
928	  Networks. It builds a kernel that dynamically determines the Octeon
929	  CPU type and supports all known board reference implementations.
930	  Some of the supported boards are:
931		EBT3000
932		EBH3000
933		EBH3100
934		Thunder
935		Kodama
936		Hikari
937	  Say Y here for most Octeon reference boards.
938
939config NLM_XLR_BOARD
940	bool "Netlogic XLR/XLS based systems"
941	select BOOT_ELF32
942	select NLM_COMMON
943	select SYS_HAS_CPU_XLR
944	select SYS_SUPPORTS_SMP
945	select HAVE_PCI
946	select SWAP_IO_SPACE
947	select SYS_SUPPORTS_32BIT_KERNEL
948	select SYS_SUPPORTS_64BIT_KERNEL
949	select PHYS_ADDR_T_64BIT
950	select SYS_SUPPORTS_BIG_ENDIAN
951	select SYS_SUPPORTS_HIGHMEM
952	select NR_CPUS_DEFAULT_32
953	select CEVT_R4K
954	select CSRC_R4K
955	select IRQ_MIPS_CPU
956	select ZONE_DMA32 if 64BIT
957	select SYNC_R4K
958	select SYS_HAS_EARLY_PRINTK
959	select SYS_SUPPORTS_ZBOOT
960	select SYS_SUPPORTS_ZBOOT_UART16550
961	help
962	  Support for systems based on Netlogic XLR and XLS processors.
963	  Say Y here if you have a XLR or XLS based board.
964
965config NLM_XLP_BOARD
966	bool "Netlogic XLP based systems"
967	select BOOT_ELF32
968	select NLM_COMMON
969	select SYS_HAS_CPU_XLP
970	select SYS_SUPPORTS_SMP
971	select HAVE_PCI
972	select SYS_SUPPORTS_32BIT_KERNEL
973	select SYS_SUPPORTS_64BIT_KERNEL
974	select PHYS_ADDR_T_64BIT
975	select GPIOLIB
976	select SYS_SUPPORTS_BIG_ENDIAN
977	select SYS_SUPPORTS_LITTLE_ENDIAN
978	select SYS_SUPPORTS_HIGHMEM
979	select NR_CPUS_DEFAULT_32
980	select CEVT_R4K
981	select CSRC_R4K
982	select IRQ_MIPS_CPU
983	select ZONE_DMA32 if 64BIT
984	select SYNC_R4K
985	select SYS_HAS_EARLY_PRINTK
986	select USE_OF
987	select SYS_SUPPORTS_ZBOOT
988	select SYS_SUPPORTS_ZBOOT_UART16550
989	help
990	  This board is based on Netlogic XLP Processor.
991	  Say Y here if you have a XLP based board.
992
993config MIPS_PARAVIRT
994	bool "Para-Virtualized guest system"
995	select CEVT_R4K
996	select CSRC_R4K
997	select SYS_SUPPORTS_64BIT_KERNEL
998	select SYS_SUPPORTS_32BIT_KERNEL
999	select SYS_SUPPORTS_BIG_ENDIAN
1000	select SYS_SUPPORTS_SMP
1001	select NR_CPUS_DEFAULT_4
1002	select SYS_HAS_EARLY_PRINTK
1003	select SYS_HAS_CPU_MIPS32_R2
1004	select SYS_HAS_CPU_MIPS64_R2
1005	select SYS_HAS_CPU_CAVIUM_OCTEON
1006	select HAVE_PCI
1007	select SWAP_IO_SPACE
1008	help
1009	  This option supports guest running under ????
1010
1011endchoice
1012
1013source "arch/mips/alchemy/Kconfig"
1014source "arch/mips/ath25/Kconfig"
1015source "arch/mips/ath79/Kconfig"
1016source "arch/mips/bcm47xx/Kconfig"
1017source "arch/mips/bcm63xx/Kconfig"
1018source "arch/mips/bmips/Kconfig"
1019source "arch/mips/generic/Kconfig"
1020source "arch/mips/jazz/Kconfig"
1021source "arch/mips/jz4740/Kconfig"
1022source "arch/mips/lantiq/Kconfig"
1023source "arch/mips/lasat/Kconfig"
1024source "arch/mips/pic32/Kconfig"
1025source "arch/mips/pistachio/Kconfig"
1026source "arch/mips/pmcs-msp71xx/Kconfig"
1027source "arch/mips/ralink/Kconfig"
1028source "arch/mips/sgi-ip27/Kconfig"
1029source "arch/mips/sibyte/Kconfig"
1030source "arch/mips/txx9/Kconfig"
1031source "arch/mips/vr41xx/Kconfig"
1032source "arch/mips/cavium-octeon/Kconfig"
1033source "arch/mips/loongson32/Kconfig"
1034source "arch/mips/loongson64/Kconfig"
1035source "arch/mips/netlogic/Kconfig"
1036source "arch/mips/paravirt/Kconfig"
1037
1038endmenu
1039
1040config RWSEM_GENERIC_SPINLOCK
1041	bool
1042	default y
1043
1044config RWSEM_XCHGADD_ALGORITHM
1045	bool
1046
1047config GENERIC_HWEIGHT
1048	bool
1049	default y
1050
1051config GENERIC_CALIBRATE_DELAY
1052	bool
1053	default y
1054
1055config SCHED_OMIT_FRAME_POINTER
1056	bool
1057	default y
1058
1059#
1060# Select some configuration options automatically based on user selections.
1061#
1062config FW_ARC
1063	bool
1064
1065config ARCH_MAY_HAVE_PC_FDC
1066	bool
1067
1068config BOOT_RAW
1069	bool
1070
1071config CEVT_BCM1480
1072	bool
1073
1074config CEVT_DS1287
1075	bool
1076
1077config CEVT_GT641XX
1078	bool
1079
1080config CEVT_R4K
1081	bool
1082
1083config CEVT_SB1250
1084	bool
1085
1086config CEVT_TXX9
1087	bool
1088
1089config CSRC_BCM1480
1090	bool
1091
1092config CSRC_IOASIC
1093	bool
1094
1095config CSRC_R4K
1096	bool
1097
1098config CSRC_SB1250
1099	bool
1100
1101config MIPS_CLOCK_VSYSCALL
1102	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1103
1104config GPIO_TXX9
1105	select GPIOLIB
1106	bool
1107
1108config FW_CFE
1109	bool
1110
1111config ARCH_SUPPORTS_UPROBES
1112	bool
1113
1114config DMA_MAYBE_COHERENT
1115	select ARCH_HAS_DMA_COHERENCE_H
1116	select DMA_NONCOHERENT
1117	bool
1118
1119config DMA_PERDEV_COHERENT
1120	bool
1121	select DMA_NONCOHERENT
1122
1123config DMA_NONCOHERENT
1124	bool
1125	select ARCH_HAS_DMA_MMAP_PGPROT
1126	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1127	select ARCH_HAS_SYNC_DMA_FOR_CPU
1128	select NEED_DMA_MAP_STATE
1129	select ARCH_HAS_DMA_COHERENT_TO_PFN
1130	select DMA_NONCOHERENT_CACHE_SYNC
1131
1132config SYS_HAS_EARLY_PRINTK
1133	bool
1134
1135config SYS_SUPPORTS_HOTPLUG_CPU
1136	bool
1137
1138config MIPS_BONITO64
1139	bool
1140
1141config MIPS_MSC
1142	bool
1143
1144config MIPS_NILE4
1145	bool
1146
1147config SYNC_R4K
1148	bool
1149
1150config MIPS_MACHINE
1151	def_bool n
1152
1153config NO_IOPORT_MAP
1154	def_bool n
1155
1156config GENERIC_CSUM
1157	bool
1158	default y if !CPU_HAS_LOAD_STORE_LR
1159
1160config GENERIC_ISA_DMA
1161	bool
1162	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1163	select ISA_DMA_API
1164
1165config GENERIC_ISA_DMA_SUPPORT_BROKEN
1166	bool
1167	select GENERIC_ISA_DMA
1168
1169config ISA_DMA_API
1170	bool
1171
1172config HOLES_IN_ZONE
1173	bool
1174
1175config SYS_SUPPORTS_RELOCATABLE
1176	bool
1177	help
1178	 Selected if the platform supports relocating the kernel.
1179	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1180	 to allow access to command line and entropy sources.
1181
1182config MIPS_CBPF_JIT
1183	def_bool y
1184	depends on BPF_JIT && HAVE_CBPF_JIT
1185
1186config MIPS_EBPF_JIT
1187	def_bool y
1188	depends on BPF_JIT && HAVE_EBPF_JIT
1189
1190
1191#
1192# Endianness selection.  Sufficiently obscure so many users don't know what to
1193# answer,so we try hard to limit the available choices.  Also the use of a
1194# choice statement should be more obvious to the user.
1195#
1196choice
1197	prompt "Endianness selection"
1198	help
1199	  Some MIPS machines can be configured for either little or big endian
1200	  byte order. These modes require different kernels and a different
1201	  Linux distribution.  In general there is one preferred byteorder for a
1202	  particular system but some systems are just as commonly used in the
1203	  one or the other endianness.
1204
1205config CPU_BIG_ENDIAN
1206	bool "Big endian"
1207	depends on SYS_SUPPORTS_BIG_ENDIAN
1208
1209config CPU_LITTLE_ENDIAN
1210	bool "Little endian"
1211	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1212
1213endchoice
1214
1215config EXPORT_UASM
1216	bool
1217
1218config SYS_SUPPORTS_APM_EMULATION
1219	bool
1220
1221config SYS_SUPPORTS_BIG_ENDIAN
1222	bool
1223
1224config SYS_SUPPORTS_LITTLE_ENDIAN
1225	bool
1226
1227config SYS_SUPPORTS_HUGETLBFS
1228	bool
1229	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1230	default y
1231
1232config MIPS_HUGE_TLB_SUPPORT
1233	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1234
1235config IRQ_CPU_RM7K
1236	bool
1237
1238config IRQ_MSP_SLP
1239	bool
1240
1241config IRQ_MSP_CIC
1242	bool
1243
1244config IRQ_TXX9
1245	bool
1246
1247config IRQ_GT641XX
1248	bool
1249
1250config PCI_GT64XXX_PCI0
1251	bool
1252
1253config NO_EXCEPT_FILL
1254	bool
1255
1256config SOC_EMMA2RH
1257	bool
1258	select CEVT_R4K
1259	select CSRC_R4K
1260	select DMA_NONCOHERENT
1261	select IRQ_MIPS_CPU
1262	select SWAP_IO_SPACE
1263	select SYS_HAS_CPU_R5500
1264	select SYS_SUPPORTS_32BIT_KERNEL
1265	select SYS_SUPPORTS_64BIT_KERNEL
1266	select SYS_SUPPORTS_BIG_ENDIAN
1267
1268config SOC_PNX833X
1269	bool
1270	select CEVT_R4K
1271	select CSRC_R4K
1272	select IRQ_MIPS_CPU
1273	select DMA_NONCOHERENT
1274	select SYS_HAS_CPU_MIPS32_R2
1275	select SYS_SUPPORTS_32BIT_KERNEL
1276	select SYS_SUPPORTS_LITTLE_ENDIAN
1277	select SYS_SUPPORTS_BIG_ENDIAN
1278	select SYS_SUPPORTS_MIPS16
1279	select CPU_MIPSR2_IRQ_VI
1280
1281config SOC_PNX8335
1282	bool
1283	select SOC_PNX833X
1284
1285config MIPS_SPRAM
1286	bool
1287
1288config SWAP_IO_SPACE
1289	bool
1290
1291config SGI_HAS_INDYDOG
1292	bool
1293
1294config SGI_HAS_HAL2
1295	bool
1296
1297config SGI_HAS_SEEQ
1298	bool
1299
1300config SGI_HAS_WD93
1301	bool
1302
1303config SGI_HAS_ZILOG
1304	bool
1305
1306config SGI_HAS_I8042
1307	bool
1308
1309config DEFAULT_SGI_PARTITION
1310	bool
1311
1312config FW_ARC32
1313	bool
1314
1315config FW_SNIPROM
1316	bool
1317
1318config BOOT_ELF32
1319	bool
1320
1321config MIPS_L1_CACHE_SHIFT_4
1322	bool
1323
1324config MIPS_L1_CACHE_SHIFT_5
1325	bool
1326
1327config MIPS_L1_CACHE_SHIFT_6
1328	bool
1329
1330config MIPS_L1_CACHE_SHIFT_7
1331	bool
1332
1333config MIPS_L1_CACHE_SHIFT
1334	int
1335	default "7" if MIPS_L1_CACHE_SHIFT_7
1336	default "6" if MIPS_L1_CACHE_SHIFT_6
1337	default "5" if MIPS_L1_CACHE_SHIFT_5
1338	default "4" if MIPS_L1_CACHE_SHIFT_4
1339	default "5"
1340
1341config HAVE_STD_PC_SERIAL_PORT
1342	bool
1343
1344config ARC_CONSOLE
1345	bool "ARC console support"
1346	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1347
1348config ARC_MEMORY
1349	bool
1350	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1351	default y
1352
1353config ARC_PROMLIB
1354	bool
1355	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1356	default y
1357
1358config FW_ARC64
1359	bool
1360
1361config BOOT_ELF64
1362	bool
1363
1364menu "CPU selection"
1365
1366choice
1367	prompt "CPU type"
1368	default CPU_R4X00
1369
1370config CPU_LOONGSON3
1371	bool "Loongson 3 CPU"
1372	depends on SYS_HAS_CPU_LOONGSON3
1373	select ARCH_HAS_PHYS_TO_DMA
1374	select CPU_SUPPORTS_64BIT_KERNEL
1375	select CPU_SUPPORTS_HIGHMEM
1376	select CPU_SUPPORTS_HUGEPAGES
1377	select CPU_HAS_LOAD_STORE_LR
1378	select WEAK_ORDERING
1379	select WEAK_REORDERING_BEYOND_LLSC
1380	select MIPS_PGD_C0_CONTEXT
1381	select MIPS_L1_CACHE_SHIFT_6
1382	select GPIOLIB
1383	select SWIOTLB
1384	help
1385		The Loongson 3 processor implements the MIPS64R2 instruction
1386		set with many extensions.
1387
1388config LOONGSON3_ENHANCEMENT
1389	bool "New Loongson 3 CPU Enhancements"
1390	default n
1391	select CPU_MIPSR2
1392	select CPU_HAS_PREFETCH
1393	depends on CPU_LOONGSON3
1394	help
1395	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1396	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1397	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1398	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1399	  Fast TLB refill support, etc.
1400
1401	  This option enable those enhancements which are not probed at run
1402	  time. If you want a generic kernel to run on all Loongson 3 machines,
1403	  please say 'N' here. If you want a high-performance kernel to run on
1404	  new Loongson 3 machines only, please say 'Y' here.
1405
1406config CPU_LOONGSON2E
1407	bool "Loongson 2E"
1408	depends on SYS_HAS_CPU_LOONGSON2E
1409	select CPU_LOONGSON2
1410	help
1411	  The Loongson 2E processor implements the MIPS III instruction set
1412	  with many extensions.
1413
1414	  It has an internal FPGA northbridge, which is compatible to
1415	  bonito64.
1416
1417config CPU_LOONGSON2F
1418	bool "Loongson 2F"
1419	depends on SYS_HAS_CPU_LOONGSON2F
1420	select CPU_LOONGSON2
1421	select GPIOLIB
1422	help
1423	  The Loongson 2F processor implements the MIPS III instruction set
1424	  with many extensions.
1425
1426	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1427	  have a similar programming interface with FPGA northbridge used in
1428	  Loongson2E.
1429
1430config CPU_LOONGSON1B
1431	bool "Loongson 1B"
1432	depends on SYS_HAS_CPU_LOONGSON1B
1433	select CPU_LOONGSON1
1434	select LEDS_GPIO_REGISTER
1435	help
1436	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1437	  Release 1 instruction set and part of the MIPS32 Release 2
1438	  instruction set.
1439
1440config CPU_LOONGSON1C
1441	bool "Loongson 1C"
1442	depends on SYS_HAS_CPU_LOONGSON1C
1443	select CPU_LOONGSON1
1444	select LEDS_GPIO_REGISTER
1445	help
1446	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1447	  Release 1 instruction set and part of the MIPS32 Release 2
1448	  instruction set.
1449
1450config CPU_MIPS32_R1
1451	bool "MIPS32 Release 1"
1452	depends on SYS_HAS_CPU_MIPS32_R1
1453	select CPU_HAS_PREFETCH
1454	select CPU_HAS_LOAD_STORE_LR
1455	select CPU_SUPPORTS_32BIT_KERNEL
1456	select CPU_SUPPORTS_HIGHMEM
1457	help
1458	  Choose this option to build a kernel for release 1 or later of the
1459	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1460	  MIPS processor are based on a MIPS32 processor.  If you know the
1461	  specific type of processor in your system, choose those that one
1462	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1463	  Release 2 of the MIPS32 architecture is available since several
1464	  years so chances are you even have a MIPS32 Release 2 processor
1465	  in which case you should choose CPU_MIPS32_R2 instead for better
1466	  performance.
1467
1468config CPU_MIPS32_R2
1469	bool "MIPS32 Release 2"
1470	depends on SYS_HAS_CPU_MIPS32_R2
1471	select CPU_HAS_PREFETCH
1472	select CPU_HAS_LOAD_STORE_LR
1473	select CPU_SUPPORTS_32BIT_KERNEL
1474	select CPU_SUPPORTS_HIGHMEM
1475	select CPU_SUPPORTS_MSA
1476	select HAVE_KVM
1477	help
1478	  Choose this option to build a kernel for release 2 or later of the
1479	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1480	  MIPS processor are based on a MIPS32 processor.  If you know the
1481	  specific type of processor in your system, choose those that one
1482	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1483
1484config CPU_MIPS32_R6
1485	bool "MIPS32 Release 6"
1486	depends on SYS_HAS_CPU_MIPS32_R6
1487	select CPU_HAS_PREFETCH
1488	select CPU_SUPPORTS_32BIT_KERNEL
1489	select CPU_SUPPORTS_HIGHMEM
1490	select CPU_SUPPORTS_MSA
1491	select HAVE_KVM
1492	select MIPS_O32_FP64_SUPPORT
1493	help
1494	  Choose this option to build a kernel for release 6 or later of the
1495	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1496	  family, are based on a MIPS32r6 processor. If you own an older
1497	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1498
1499config CPU_MIPS64_R1
1500	bool "MIPS64 Release 1"
1501	depends on SYS_HAS_CPU_MIPS64_R1
1502	select CPU_HAS_PREFETCH
1503	select CPU_HAS_LOAD_STORE_LR
1504	select CPU_SUPPORTS_32BIT_KERNEL
1505	select CPU_SUPPORTS_64BIT_KERNEL
1506	select CPU_SUPPORTS_HIGHMEM
1507	select CPU_SUPPORTS_HUGEPAGES
1508	help
1509	  Choose this option to build a kernel for release 1 or later of the
1510	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1511	  MIPS processor are based on a MIPS64 processor.  If you know the
1512	  specific type of processor in your system, choose those that one
1513	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1514	  Release 2 of the MIPS64 architecture is available since several
1515	  years so chances are you even have a MIPS64 Release 2 processor
1516	  in which case you should choose CPU_MIPS64_R2 instead for better
1517	  performance.
1518
1519config CPU_MIPS64_R2
1520	bool "MIPS64 Release 2"
1521	depends on SYS_HAS_CPU_MIPS64_R2
1522	select CPU_HAS_PREFETCH
1523	select CPU_HAS_LOAD_STORE_LR
1524	select CPU_SUPPORTS_32BIT_KERNEL
1525	select CPU_SUPPORTS_64BIT_KERNEL
1526	select CPU_SUPPORTS_HIGHMEM
1527	select CPU_SUPPORTS_HUGEPAGES
1528	select CPU_SUPPORTS_MSA
1529	select HAVE_KVM
1530	help
1531	  Choose this option to build a kernel for release 2 or later of the
1532	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1533	  MIPS processor are based on a MIPS64 processor.  If you know the
1534	  specific type of processor in your system, choose those that one
1535	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1536
1537config CPU_MIPS64_R6
1538	bool "MIPS64 Release 6"
1539	depends on SYS_HAS_CPU_MIPS64_R6
1540	select CPU_HAS_PREFETCH
1541	select CPU_SUPPORTS_32BIT_KERNEL
1542	select CPU_SUPPORTS_64BIT_KERNEL
1543	select CPU_SUPPORTS_HIGHMEM
1544	select CPU_SUPPORTS_MSA
1545	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1546	select HAVE_KVM
1547	help
1548	  Choose this option to build a kernel for release 6 or later of the
1549	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1550	  family, are based on a MIPS64r6 processor. If you own an older
1551	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1552
1553config CPU_R3000
1554	bool "R3000"
1555	depends on SYS_HAS_CPU_R3000
1556	select CPU_HAS_WB
1557	select CPU_HAS_LOAD_STORE_LR
1558	select CPU_SUPPORTS_32BIT_KERNEL
1559	select CPU_SUPPORTS_HIGHMEM
1560	help
1561	  Please make sure to pick the right CPU type. Linux/MIPS is not
1562	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1563	  *not* work on R4000 machines and vice versa.  However, since most
1564	  of the supported machines have an R4000 (or similar) CPU, R4x00
1565	  might be a safe bet.  If the resulting kernel does not work,
1566	  try to recompile with R3000.
1567
1568config CPU_TX39XX
1569	bool "R39XX"
1570	depends on SYS_HAS_CPU_TX39XX
1571	select CPU_SUPPORTS_32BIT_KERNEL
1572	select CPU_HAS_LOAD_STORE_LR
1573
1574config CPU_VR41XX
1575	bool "R41xx"
1576	depends on SYS_HAS_CPU_VR41XX
1577	select CPU_SUPPORTS_32BIT_KERNEL
1578	select CPU_SUPPORTS_64BIT_KERNEL
1579	select CPU_HAS_LOAD_STORE_LR
1580	help
1581	  The options selects support for the NEC VR4100 series of processors.
1582	  Only choose this option if you have one of these processors as a
1583	  kernel built with this option will not run on any other type of
1584	  processor or vice versa.
1585
1586config CPU_R4300
1587	bool "R4300"
1588	depends on SYS_HAS_CPU_R4300
1589	select CPU_SUPPORTS_32BIT_KERNEL
1590	select CPU_SUPPORTS_64BIT_KERNEL
1591	select CPU_HAS_LOAD_STORE_LR
1592	help
1593	  MIPS Technologies R4300-series processors.
1594
1595config CPU_R4X00
1596	bool "R4x00"
1597	depends on SYS_HAS_CPU_R4X00
1598	select CPU_SUPPORTS_32BIT_KERNEL
1599	select CPU_SUPPORTS_64BIT_KERNEL
1600	select CPU_SUPPORTS_HUGEPAGES
1601	select CPU_HAS_LOAD_STORE_LR
1602	help
1603	  MIPS Technologies R4000-series processors other than 4300, including
1604	  the R4000, R4400, R4600, and 4700.
1605
1606config CPU_TX49XX
1607	bool "R49XX"
1608	depends on SYS_HAS_CPU_TX49XX
1609	select CPU_HAS_PREFETCH
1610	select CPU_HAS_LOAD_STORE_LR
1611	select CPU_SUPPORTS_32BIT_KERNEL
1612	select CPU_SUPPORTS_64BIT_KERNEL
1613	select CPU_SUPPORTS_HUGEPAGES
1614
1615config CPU_R5000
1616	bool "R5000"
1617	depends on SYS_HAS_CPU_R5000
1618	select CPU_SUPPORTS_32BIT_KERNEL
1619	select CPU_SUPPORTS_64BIT_KERNEL
1620	select CPU_SUPPORTS_HUGEPAGES
1621	select CPU_HAS_LOAD_STORE_LR
1622	help
1623	  MIPS Technologies R5000-series processors other than the Nevada.
1624
1625config CPU_R5432
1626	bool "R5432"
1627	depends on SYS_HAS_CPU_R5432
1628	select CPU_SUPPORTS_32BIT_KERNEL
1629	select CPU_SUPPORTS_64BIT_KERNEL
1630	select CPU_SUPPORTS_HUGEPAGES
1631	select CPU_HAS_LOAD_STORE_LR
1632
1633config CPU_R5500
1634	bool "R5500"
1635	depends on SYS_HAS_CPU_R5500
1636	select CPU_SUPPORTS_32BIT_KERNEL
1637	select CPU_SUPPORTS_64BIT_KERNEL
1638	select CPU_SUPPORTS_HUGEPAGES
1639	select CPU_HAS_LOAD_STORE_LR
1640	help
1641	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1642	  instruction set.
1643
1644config CPU_NEVADA
1645	bool "RM52xx"
1646	depends on SYS_HAS_CPU_NEVADA
1647	select CPU_SUPPORTS_32BIT_KERNEL
1648	select CPU_SUPPORTS_64BIT_KERNEL
1649	select CPU_SUPPORTS_HUGEPAGES
1650	select CPU_HAS_LOAD_STORE_LR
1651	help
1652	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1653
1654config CPU_R8000
1655	bool "R8000"
1656	depends on SYS_HAS_CPU_R8000
1657	select CPU_HAS_PREFETCH
1658	select CPU_HAS_LOAD_STORE_LR
1659	select CPU_SUPPORTS_64BIT_KERNEL
1660	help
1661	  MIPS Technologies R8000 processors.  Note these processors are
1662	  uncommon and the support for them is incomplete.
1663
1664config CPU_R10000
1665	bool "R10000"
1666	depends on SYS_HAS_CPU_R10000
1667	select CPU_HAS_PREFETCH
1668	select CPU_HAS_LOAD_STORE_LR
1669	select CPU_SUPPORTS_32BIT_KERNEL
1670	select CPU_SUPPORTS_64BIT_KERNEL
1671	select CPU_SUPPORTS_HIGHMEM
1672	select CPU_SUPPORTS_HUGEPAGES
1673	help
1674	  MIPS Technologies R10000-series processors.
1675
1676config CPU_RM7000
1677	bool "RM7000"
1678	depends on SYS_HAS_CPU_RM7000
1679	select CPU_HAS_PREFETCH
1680	select CPU_HAS_LOAD_STORE_LR
1681	select CPU_SUPPORTS_32BIT_KERNEL
1682	select CPU_SUPPORTS_64BIT_KERNEL
1683	select CPU_SUPPORTS_HIGHMEM
1684	select CPU_SUPPORTS_HUGEPAGES
1685
1686config CPU_SB1
1687	bool "SB1"
1688	depends on SYS_HAS_CPU_SB1
1689	select CPU_HAS_LOAD_STORE_LR
1690	select CPU_SUPPORTS_32BIT_KERNEL
1691	select CPU_SUPPORTS_64BIT_KERNEL
1692	select CPU_SUPPORTS_HIGHMEM
1693	select CPU_SUPPORTS_HUGEPAGES
1694	select WEAK_ORDERING
1695
1696config CPU_CAVIUM_OCTEON
1697	bool "Cavium Octeon processor"
1698	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1699	select CPU_HAS_PREFETCH
1700	select CPU_HAS_LOAD_STORE_LR
1701	select CPU_SUPPORTS_64BIT_KERNEL
1702	select WEAK_ORDERING
1703	select CPU_SUPPORTS_HIGHMEM
1704	select CPU_SUPPORTS_HUGEPAGES
1705	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1706	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1707	select MIPS_L1_CACHE_SHIFT_7
1708	select HAVE_KVM
1709	help
1710	  The Cavium Octeon processor is a highly integrated chip containing
1711	  many ethernet hardware widgets for networking tasks. The processor
1712	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1713	  Full details can be found at http://www.caviumnetworks.com.
1714
1715config CPU_BMIPS
1716	bool "Broadcom BMIPS"
1717	depends on SYS_HAS_CPU_BMIPS
1718	select CPU_MIPS32
1719	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1720	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1721	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1722	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1723	select CPU_SUPPORTS_32BIT_KERNEL
1724	select DMA_NONCOHERENT
1725	select IRQ_MIPS_CPU
1726	select SWAP_IO_SPACE
1727	select WEAK_ORDERING
1728	select CPU_SUPPORTS_HIGHMEM
1729	select CPU_HAS_PREFETCH
1730	select CPU_HAS_LOAD_STORE_LR
1731	select CPU_SUPPORTS_CPUFREQ
1732	select MIPS_EXTERNAL_TIMER
1733	help
1734	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1735
1736config CPU_XLR
1737	bool "Netlogic XLR SoC"
1738	depends on SYS_HAS_CPU_XLR
1739	select CPU_HAS_LOAD_STORE_LR
1740	select CPU_SUPPORTS_32BIT_KERNEL
1741	select CPU_SUPPORTS_64BIT_KERNEL
1742	select CPU_SUPPORTS_HIGHMEM
1743	select CPU_SUPPORTS_HUGEPAGES
1744	select WEAK_ORDERING
1745	select WEAK_REORDERING_BEYOND_LLSC
1746	help
1747	  Netlogic Microsystems XLR/XLS processors.
1748
1749config CPU_XLP
1750	bool "Netlogic XLP SoC"
1751	depends on SYS_HAS_CPU_XLP
1752	select CPU_SUPPORTS_32BIT_KERNEL
1753	select CPU_SUPPORTS_64BIT_KERNEL
1754	select CPU_SUPPORTS_HIGHMEM
1755	select WEAK_ORDERING
1756	select WEAK_REORDERING_BEYOND_LLSC
1757	select CPU_HAS_PREFETCH
1758	select CPU_HAS_LOAD_STORE_LR
1759	select CPU_MIPSR2
1760	select CPU_SUPPORTS_HUGEPAGES
1761	select MIPS_ASID_BITS_VARIABLE
1762	help
1763	  Netlogic Microsystems XLP processors.
1764endchoice
1765
1766config CPU_MIPS32_3_5_FEATURES
1767	bool "MIPS32 Release 3.5 Features"
1768	depends on SYS_HAS_CPU_MIPS32_R3_5
1769	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1770	help
1771	  Choose this option to build a kernel for release 2 or later of the
1772	  MIPS32 architecture including features from the 3.5 release such as
1773	  support for Enhanced Virtual Addressing (EVA).
1774
1775config CPU_MIPS32_3_5_EVA
1776	bool "Enhanced Virtual Addressing (EVA)"
1777	depends on CPU_MIPS32_3_5_FEATURES
1778	select EVA
1779	default y
1780	help
1781	  Choose this option if you want to enable the Enhanced Virtual
1782	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1783	  One of its primary benefits is an increase in the maximum size
1784	  of lowmem (up to 3GB). If unsure, say 'N' here.
1785
1786config CPU_MIPS32_R5_FEATURES
1787	bool "MIPS32 Release 5 Features"
1788	depends on SYS_HAS_CPU_MIPS32_R5
1789	depends on CPU_MIPS32_R2
1790	help
1791	  Choose this option to build a kernel for release 2 or later of the
1792	  MIPS32 architecture including features from release 5 such as
1793	  support for Extended Physical Addressing (XPA).
1794
1795config CPU_MIPS32_R5_XPA
1796	bool "Extended Physical Addressing (XPA)"
1797	depends on CPU_MIPS32_R5_FEATURES
1798	depends on !EVA
1799	depends on !PAGE_SIZE_4KB
1800	depends on SYS_SUPPORTS_HIGHMEM
1801	select XPA
1802	select HIGHMEM
1803	select PHYS_ADDR_T_64BIT
1804	default n
1805	help
1806	  Choose this option if you want to enable the Extended Physical
1807	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1808	  benefit is to increase physical addressing equal to or greater
1809	  than 40 bits. Note that this has the side effect of turning on
1810	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1811	  If unsure, say 'N' here.
1812
1813if CPU_LOONGSON2F
1814config CPU_NOP_WORKAROUNDS
1815	bool
1816
1817config CPU_JUMP_WORKAROUNDS
1818	bool
1819
1820config CPU_LOONGSON2F_WORKAROUNDS
1821	bool "Loongson 2F Workarounds"
1822	default y
1823	select CPU_NOP_WORKAROUNDS
1824	select CPU_JUMP_WORKAROUNDS
1825	help
1826	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1827	  require workarounds.  Without workarounds the system may hang
1828	  unexpectedly.  For more information please refer to the gas
1829	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1830
1831	  Loongson 2F03 and later have fixed these issues and no workarounds
1832	  are needed.  The workarounds have no significant side effect on them
1833	  but may decrease the performance of the system so this option should
1834	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1835	  systems.
1836
1837	  If unsure, please say Y.
1838endif # CPU_LOONGSON2F
1839
1840config SYS_SUPPORTS_ZBOOT
1841	bool
1842	select HAVE_KERNEL_GZIP
1843	select HAVE_KERNEL_BZIP2
1844	select HAVE_KERNEL_LZ4
1845	select HAVE_KERNEL_LZMA
1846	select HAVE_KERNEL_LZO
1847	select HAVE_KERNEL_XZ
1848
1849config SYS_SUPPORTS_ZBOOT_UART16550
1850	bool
1851	select SYS_SUPPORTS_ZBOOT
1852
1853config SYS_SUPPORTS_ZBOOT_UART_PROM
1854	bool
1855	select SYS_SUPPORTS_ZBOOT
1856
1857config CPU_LOONGSON2
1858	bool
1859	select CPU_SUPPORTS_32BIT_KERNEL
1860	select CPU_SUPPORTS_64BIT_KERNEL
1861	select CPU_SUPPORTS_HIGHMEM
1862	select CPU_SUPPORTS_HUGEPAGES
1863	select ARCH_HAS_PHYS_TO_DMA
1864	select CPU_HAS_LOAD_STORE_LR
1865
1866config CPU_LOONGSON1
1867	bool
1868	select CPU_MIPS32
1869	select CPU_MIPSR1
1870	select CPU_HAS_PREFETCH
1871	select CPU_HAS_LOAD_STORE_LR
1872	select CPU_SUPPORTS_32BIT_KERNEL
1873	select CPU_SUPPORTS_HIGHMEM
1874	select CPU_SUPPORTS_CPUFREQ
1875
1876config CPU_BMIPS32_3300
1877	select SMP_UP if SMP
1878	bool
1879
1880config CPU_BMIPS4350
1881	bool
1882	select SYS_SUPPORTS_SMP
1883	select SYS_SUPPORTS_HOTPLUG_CPU
1884
1885config CPU_BMIPS4380
1886	bool
1887	select MIPS_L1_CACHE_SHIFT_6
1888	select SYS_SUPPORTS_SMP
1889	select SYS_SUPPORTS_HOTPLUG_CPU
1890	select CPU_HAS_RIXI
1891
1892config CPU_BMIPS5000
1893	bool
1894	select MIPS_CPU_SCACHE
1895	select MIPS_L1_CACHE_SHIFT_7
1896	select SYS_SUPPORTS_SMP
1897	select SYS_SUPPORTS_HOTPLUG_CPU
1898	select CPU_HAS_RIXI
1899
1900config SYS_HAS_CPU_LOONGSON3
1901	bool
1902	select CPU_SUPPORTS_CPUFREQ
1903	select CPU_HAS_RIXI
1904
1905config SYS_HAS_CPU_LOONGSON2E
1906	bool
1907
1908config SYS_HAS_CPU_LOONGSON2F
1909	bool
1910	select CPU_SUPPORTS_CPUFREQ
1911	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1912	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1913
1914config SYS_HAS_CPU_LOONGSON1B
1915	bool
1916
1917config SYS_HAS_CPU_LOONGSON1C
1918	bool
1919
1920config SYS_HAS_CPU_MIPS32_R1
1921	bool
1922
1923config SYS_HAS_CPU_MIPS32_R2
1924	bool
1925
1926config SYS_HAS_CPU_MIPS32_R3_5
1927	bool
1928
1929config SYS_HAS_CPU_MIPS32_R5
1930	bool
1931
1932config SYS_HAS_CPU_MIPS32_R6
1933	bool
1934
1935config SYS_HAS_CPU_MIPS64_R1
1936	bool
1937
1938config SYS_HAS_CPU_MIPS64_R2
1939	bool
1940
1941config SYS_HAS_CPU_MIPS64_R6
1942	bool
1943
1944config SYS_HAS_CPU_R3000
1945	bool
1946
1947config SYS_HAS_CPU_TX39XX
1948	bool
1949
1950config SYS_HAS_CPU_VR41XX
1951	bool
1952
1953config SYS_HAS_CPU_R4300
1954	bool
1955
1956config SYS_HAS_CPU_R4X00
1957	bool
1958
1959config SYS_HAS_CPU_TX49XX
1960	bool
1961
1962config SYS_HAS_CPU_R5000
1963	bool
1964
1965config SYS_HAS_CPU_R5432
1966	bool
1967
1968config SYS_HAS_CPU_R5500
1969	bool
1970
1971config SYS_HAS_CPU_NEVADA
1972	bool
1973
1974config SYS_HAS_CPU_R8000
1975	bool
1976
1977config SYS_HAS_CPU_R10000
1978	bool
1979
1980config SYS_HAS_CPU_RM7000
1981	bool
1982
1983config SYS_HAS_CPU_SB1
1984	bool
1985
1986config SYS_HAS_CPU_CAVIUM_OCTEON
1987	bool
1988
1989config SYS_HAS_CPU_BMIPS
1990	bool
1991
1992config SYS_HAS_CPU_BMIPS32_3300
1993	bool
1994	select SYS_HAS_CPU_BMIPS
1995
1996config SYS_HAS_CPU_BMIPS4350
1997	bool
1998	select SYS_HAS_CPU_BMIPS
1999
2000config SYS_HAS_CPU_BMIPS4380
2001	bool
2002	select SYS_HAS_CPU_BMIPS
2003
2004config SYS_HAS_CPU_BMIPS5000
2005	bool
2006	select SYS_HAS_CPU_BMIPS
2007
2008config SYS_HAS_CPU_XLR
2009	bool
2010
2011config SYS_HAS_CPU_XLP
2012	bool
2013
2014#
2015# CPU may reorder R->R, R->W, W->R, W->W
2016# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2017#
2018config WEAK_ORDERING
2019	bool
2020
2021#
2022# CPU may reorder reads and writes beyond LL/SC
2023# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2024#
2025config WEAK_REORDERING_BEYOND_LLSC
2026	bool
2027endmenu
2028
2029#
2030# These two indicate any level of the MIPS32 and MIPS64 architecture
2031#
2032config CPU_MIPS32
2033	bool
2034	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2035
2036config CPU_MIPS64
2037	bool
2038	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2039
2040#
2041# These indicate the revision of the architecture
2042#
2043config CPU_MIPSR1
2044	bool
2045	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2046
2047config CPU_MIPSR2
2048	bool
2049	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2050	select CPU_HAS_RIXI
2051	select MIPS_SPRAM
2052
2053config CPU_MIPSR6
2054	bool
2055	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2056	select CPU_HAS_RIXI
2057	select HAVE_ARCH_BITREVERSE
2058	select MIPS_ASID_BITS_VARIABLE
2059	select MIPS_CRC_SUPPORT
2060	select MIPS_SPRAM
2061
2062config TARGET_ISA_REV
2063	int
2064	default 1 if CPU_MIPSR1
2065	default 2 if CPU_MIPSR2
2066	default 6 if CPU_MIPSR6
2067	default 0
2068	help
2069	  Reflects the ISA revision being targeted by the kernel build. This
2070	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2071
2072config EVA
2073	bool
2074
2075config XPA
2076	bool
2077
2078config SYS_SUPPORTS_32BIT_KERNEL
2079	bool
2080config SYS_SUPPORTS_64BIT_KERNEL
2081	bool
2082config CPU_SUPPORTS_32BIT_KERNEL
2083	bool
2084config CPU_SUPPORTS_64BIT_KERNEL
2085	bool
2086config CPU_SUPPORTS_CPUFREQ
2087	bool
2088config CPU_SUPPORTS_ADDRWINCFG
2089	bool
2090config CPU_SUPPORTS_HUGEPAGES
2091	bool
2092config CPU_SUPPORTS_UNCACHED_ACCELERATED
2093	bool
2094config MIPS_PGD_C0_CONTEXT
2095	bool
2096	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2097
2098#
2099# Set to y for ptrace access to watch registers.
2100#
2101config HARDWARE_WATCHPOINTS
2102       bool
2103       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2104
2105menu "Kernel type"
2106
2107choice
2108	prompt "Kernel code model"
2109	help
2110	  You should only select this option if you have a workload that
2111	  actually benefits from 64-bit processing or if your machine has
2112	  large memory.  You will only be presented a single option in this
2113	  menu if your system does not support both 32-bit and 64-bit kernels.
2114
2115config 32BIT
2116	bool "32-bit kernel"
2117	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2118	select TRAD_SIGNALS
2119	help
2120	  Select this option if you want to build a 32-bit kernel.
2121
2122config 64BIT
2123	bool "64-bit kernel"
2124	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2125	help
2126	  Select this option if you want to build a 64-bit kernel.
2127
2128endchoice
2129
2130config KVM_GUEST
2131	bool "KVM Guest Kernel"
2132	depends on BROKEN_ON_SMP
2133	help
2134	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2135	  mode.
2136
2137config KVM_GUEST_TIMER_FREQ
2138	int "Count/Compare Timer Frequency (MHz)"
2139	depends on KVM_GUEST
2140	default 100
2141	help
2142	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2143	  emulation when determining guest CPU Frequency. Instead, the guest's
2144	  timer frequency is specified directly.
2145
2146config MIPS_VA_BITS_48
2147	bool "48 bits virtual memory"
2148	depends on 64BIT
2149	help
2150	  Support a maximum at least 48 bits of application virtual
2151	  memory.  Default is 40 bits or less, depending on the CPU.
2152	  For page sizes 16k and above, this option results in a small
2153	  memory overhead for page tables.  For 4k page size, a fourth
2154	  level of page tables is added which imposes both a memory
2155	  overhead as well as slower TLB fault handling.
2156
2157	  If unsure, say N.
2158
2159choice
2160	prompt "Kernel page size"
2161	default PAGE_SIZE_4KB
2162
2163config PAGE_SIZE_4KB
2164	bool "4kB"
2165	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2166	help
2167	 This option select the standard 4kB Linux page size.  On some
2168	 R3000-family processors this is the only available page size.  Using
2169	 4kB page size will minimize memory consumption and is therefore
2170	 recommended for low memory systems.
2171
2172config PAGE_SIZE_8KB
2173	bool "8kB"
2174	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2175	depends on !MIPS_VA_BITS_48
2176	help
2177	  Using 8kB page size will result in higher performance kernel at
2178	  the price of higher memory consumption.  This option is available
2179	  only on R8000 and cnMIPS processors.  Note that you will need a
2180	  suitable Linux distribution to support this.
2181
2182config PAGE_SIZE_16KB
2183	bool "16kB"
2184	depends on !CPU_R3000 && !CPU_TX39XX
2185	help
2186	  Using 16kB page size will result in higher performance kernel at
2187	  the price of higher memory consumption.  This option is available on
2188	  all non-R3000 family processors.  Note that you will need a suitable
2189	  Linux distribution to support this.
2190
2191config PAGE_SIZE_32KB
2192	bool "32kB"
2193	depends on CPU_CAVIUM_OCTEON
2194	depends on !MIPS_VA_BITS_48
2195	help
2196	  Using 32kB page size will result in higher performance kernel at
2197	  the price of higher memory consumption.  This option is available
2198	  only on cnMIPS cores.  Note that you will need a suitable Linux
2199	  distribution to support this.
2200
2201config PAGE_SIZE_64KB
2202	bool "64kB"
2203	depends on !CPU_R3000 && !CPU_TX39XX
2204	help
2205	  Using 64kB page size will result in higher performance kernel at
2206	  the price of higher memory consumption.  This option is available on
2207	  all non-R3000 family processor.  Not that at the time of this
2208	  writing this option is still high experimental.
2209
2210endchoice
2211
2212config FORCE_MAX_ZONEORDER
2213	int "Maximum zone order"
2214	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2215	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2216	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2217	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2218	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2219	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2220	range 11 64
2221	default "11"
2222	help
2223	  The kernel memory allocator divides physically contiguous memory
2224	  blocks into "zones", where each zone is a power of two number of
2225	  pages.  This option selects the largest power of two that the kernel
2226	  keeps in the memory allocator.  If you need to allocate very large
2227	  blocks of physically contiguous memory, then you may need to
2228	  increase this value.
2229
2230	  This config option is actually maximum order plus one. For example,
2231	  a value of 11 means that the largest free memory block is 2^10 pages.
2232
2233	  The page size is not necessarily 4KB.  Keep this in mind
2234	  when choosing a value for this option.
2235
2236config BOARD_SCACHE
2237	bool
2238
2239config IP22_CPU_SCACHE
2240	bool
2241	select BOARD_SCACHE
2242
2243#
2244# Support for a MIPS32 / MIPS64 style S-caches
2245#
2246config MIPS_CPU_SCACHE
2247	bool
2248	select BOARD_SCACHE
2249
2250config R5000_CPU_SCACHE
2251	bool
2252	select BOARD_SCACHE
2253
2254config RM7000_CPU_SCACHE
2255	bool
2256	select BOARD_SCACHE
2257
2258config SIBYTE_DMA_PAGEOPS
2259	bool "Use DMA to clear/copy pages"
2260	depends on CPU_SB1
2261	help
2262	  Instead of using the CPU to zero and copy pages, use a Data Mover
2263	  channel.  These DMA channels are otherwise unused by the standard
2264	  SiByte Linux port.  Seems to give a small performance benefit.
2265
2266config CPU_HAS_PREFETCH
2267	bool
2268
2269config CPU_GENERIC_DUMP_TLB
2270	bool
2271	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2272
2273config MIPS_FP_SUPPORT
2274	bool "Floating Point support" if EXPERT
2275	default y
2276	help
2277	  Select y to include support for floating point in the kernel
2278	  including initialization of FPU hardware, FP context save & restore
2279	  and emulation of an FPU where necessary. Without this support any
2280	  userland program attempting to use floating point instructions will
2281	  receive a SIGILL.
2282
2283	  If you know that your userland will not attempt to use floating point
2284	  instructions then you can say n here to shrink the kernel a little.
2285
2286	  If unsure, say y.
2287
2288config CPU_R2300_FPU
2289	bool
2290	depends on MIPS_FP_SUPPORT
2291	default y if CPU_R3000 || CPU_TX39XX
2292
2293config CPU_R4K_FPU
2294	bool
2295	depends on MIPS_FP_SUPPORT
2296	default y if !CPU_R2300_FPU
2297
2298config CPU_R4K_CACHE_TLB
2299	bool
2300	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2301
2302config MIPS_MT_SMP
2303	bool "MIPS MT SMP support (1 TC on each available VPE)"
2304	default y
2305	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2306	select CPU_MIPSR2_IRQ_VI
2307	select CPU_MIPSR2_IRQ_EI
2308	select SYNC_R4K
2309	select MIPS_MT
2310	select SMP
2311	select SMP_UP
2312	select SYS_SUPPORTS_SMP
2313	select SYS_SUPPORTS_SCHED_SMT
2314	select MIPS_PERF_SHARED_TC_COUNTERS
2315	help
2316	  This is a kernel model which is known as SMVP. This is supported
2317	  on cores with the MT ASE and uses the available VPEs to implement
2318	  virtual processors which supports SMP. This is equivalent to the
2319	  Intel Hyperthreading feature. For further information go to
2320	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2321
2322config MIPS_MT
2323	bool
2324
2325config SCHED_SMT
2326	bool "SMT (multithreading) scheduler support"
2327	depends on SYS_SUPPORTS_SCHED_SMT
2328	default n
2329	help
2330	  SMT scheduler support improves the CPU scheduler's decision making
2331	  when dealing with MIPS MT enabled cores at a cost of slightly
2332	  increased overhead in some places. If unsure say N here.
2333
2334config SYS_SUPPORTS_SCHED_SMT
2335	bool
2336
2337config SYS_SUPPORTS_MULTITHREADING
2338	bool
2339
2340config MIPS_MT_FPAFF
2341	bool "Dynamic FPU affinity for FP-intensive threads"
2342	default y
2343	depends on MIPS_MT_SMP
2344
2345config MIPSR2_TO_R6_EMULATOR
2346	bool "MIPS R2-to-R6 emulator"
2347	depends on CPU_MIPSR6
2348	depends on MIPS_FP_SUPPORT
2349	default y
2350	help
2351	  Choose this option if you want to run non-R6 MIPS userland code.
2352	  Even if you say 'Y' here, the emulator will still be disabled by
2353	  default. You can enable it using the 'mipsr2emu' kernel option.
2354	  The only reason this is a build-time option is to save ~14K from the
2355	  final kernel image.
2356
2357config SYS_SUPPORTS_VPE_LOADER
2358	bool
2359	depends on SYS_SUPPORTS_MULTITHREADING
2360	help
2361	  Indicates that the platform supports the VPE loader, and provides
2362	  physical_memsize.
2363
2364config MIPS_VPE_LOADER
2365	bool "VPE loader support."
2366	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2367	select CPU_MIPSR2_IRQ_VI
2368	select CPU_MIPSR2_IRQ_EI
2369	select MIPS_MT
2370	help
2371	  Includes a loader for loading an elf relocatable object
2372	  onto another VPE and running it.
2373
2374config MIPS_VPE_LOADER_CMP
2375	bool
2376	default "y"
2377	depends on MIPS_VPE_LOADER && MIPS_CMP
2378
2379config MIPS_VPE_LOADER_MT
2380	bool
2381	default "y"
2382	depends on MIPS_VPE_LOADER && !MIPS_CMP
2383
2384config MIPS_VPE_LOADER_TOM
2385	bool "Load VPE program into memory hidden from linux"
2386	depends on MIPS_VPE_LOADER
2387	default y
2388	help
2389	  The loader can use memory that is present but has been hidden from
2390	  Linux using the kernel command line option "mem=xxMB". It's up to
2391	  you to ensure the amount you put in the option and the space your
2392	  program requires is less or equal to the amount physically present.
2393
2394config MIPS_VPE_APSP_API
2395	bool "Enable support for AP/SP API (RTLX)"
2396	depends on MIPS_VPE_LOADER
2397
2398config MIPS_VPE_APSP_API_CMP
2399	bool
2400	default "y"
2401	depends on MIPS_VPE_APSP_API && MIPS_CMP
2402
2403config MIPS_VPE_APSP_API_MT
2404	bool
2405	default "y"
2406	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2407
2408config MIPS_CMP
2409	bool "MIPS CMP framework support (DEPRECATED)"
2410	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2411	select SMP
2412	select SYNC_R4K
2413	select SYS_SUPPORTS_SMP
2414	select WEAK_ORDERING
2415	default n
2416	help
2417	  Select this if you are using a bootloader which implements the "CMP
2418	  framework" protocol (ie. YAMON) and want your kernel to make use of
2419	  its ability to start secondary CPUs.
2420
2421	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2422	  instead of this.
2423
2424config MIPS_CPS
2425	bool "MIPS Coherent Processing System support"
2426	depends on SYS_SUPPORTS_MIPS_CPS
2427	select MIPS_CM
2428	select MIPS_CPS_PM if HOTPLUG_CPU
2429	select SMP
2430	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2431	select SYS_SUPPORTS_HOTPLUG_CPU
2432	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2433	select SYS_SUPPORTS_SMP
2434	select WEAK_ORDERING
2435	help
2436	  Select this if you wish to run an SMP kernel across multiple cores
2437	  within a MIPS Coherent Processing System. When this option is
2438	  enabled the kernel will probe for other cores and boot them with
2439	  no external assistance. It is safe to enable this when hardware
2440	  support is unavailable.
2441
2442config MIPS_CPS_PM
2443	depends on MIPS_CPS
2444	bool
2445
2446config MIPS_CM
2447	bool
2448	select MIPS_CPC
2449
2450config MIPS_CPC
2451	bool
2452
2453config SB1_PASS_2_WORKAROUNDS
2454	bool
2455	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2456	default y
2457
2458config SB1_PASS_2_1_WORKAROUNDS
2459	bool
2460	depends on CPU_SB1 && CPU_SB1_PASS_2
2461	default y
2462
2463
2464choice
2465	prompt "SmartMIPS or microMIPS ASE support"
2466
2467config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2468	bool "None"
2469	help
2470	  Select this if you want neither microMIPS nor SmartMIPS support
2471
2472config CPU_HAS_SMARTMIPS
2473	depends on SYS_SUPPORTS_SMARTMIPS
2474	bool "SmartMIPS"
2475	help
2476	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2477	  increased security at both hardware and software level for
2478	  smartcards.  Enabling this option will allow proper use of the
2479	  SmartMIPS instructions by Linux applications.  However a kernel with
2480	  this option will not work on a MIPS core without SmartMIPS core.  If
2481	  you don't know you probably don't have SmartMIPS and should say N
2482	  here.
2483
2484config CPU_MICROMIPS
2485	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2486	bool "microMIPS"
2487	help
2488	  When this option is enabled the kernel will be built using the
2489	  microMIPS ISA
2490
2491endchoice
2492
2493config CPU_HAS_MSA
2494	bool "Support for the MIPS SIMD Architecture"
2495	depends on CPU_SUPPORTS_MSA
2496	depends on MIPS_FP_SUPPORT
2497	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2498	help
2499	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2500	  and a set of SIMD instructions to operate on them. When this option
2501	  is enabled the kernel will support allocating & switching MSA
2502	  vector register contexts. If you know that your kernel will only be
2503	  running on CPUs which do not support MSA or that your userland will
2504	  not be making use of it then you may wish to say N here to reduce
2505	  the size & complexity of your kernel.
2506
2507	  If unsure, say Y.
2508
2509config CPU_HAS_WB
2510	bool
2511
2512config XKS01
2513	bool
2514
2515config CPU_HAS_RIXI
2516	bool
2517
2518config CPU_HAS_LOAD_STORE_LR
2519	bool
2520	help
2521	  CPU has support for unaligned load and store instructions:
2522	  LWL, LWR, SWL, SWR (Load/store word left/right).
2523	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2524
2525#
2526# Vectored interrupt mode is an R2 feature
2527#
2528config CPU_MIPSR2_IRQ_VI
2529	bool
2530
2531#
2532# Extended interrupt mode is an R2 feature
2533#
2534config CPU_MIPSR2_IRQ_EI
2535	bool
2536
2537config CPU_HAS_SYNC
2538	bool
2539	depends on !CPU_R3000
2540	default y
2541
2542#
2543# CPU non-features
2544#
2545config CPU_DADDI_WORKAROUNDS
2546	bool
2547
2548config CPU_R4000_WORKAROUNDS
2549	bool
2550	select CPU_R4400_WORKAROUNDS
2551
2552config CPU_R4400_WORKAROUNDS
2553	bool
2554
2555config MIPS_ASID_SHIFT
2556	int
2557	default 6 if CPU_R3000 || CPU_TX39XX
2558	default 4 if CPU_R8000
2559	default 0
2560
2561config MIPS_ASID_BITS
2562	int
2563	default 0 if MIPS_ASID_BITS_VARIABLE
2564	default 6 if CPU_R3000 || CPU_TX39XX
2565	default 8
2566
2567config MIPS_ASID_BITS_VARIABLE
2568	bool
2569
2570config MIPS_CRC_SUPPORT
2571	bool
2572
2573#
2574# - Highmem only makes sense for the 32-bit kernel.
2575# - The current highmem code will only work properly on physically indexed
2576#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2577#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2578#   moment we protect the user and offer the highmem option only on machines
2579#   where it's known to be safe.  This will not offer highmem on a few systems
2580#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2581#   indexed CPUs but we're playing safe.
2582# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2583#   know they might have memory configurations that could make use of highmem
2584#   support.
2585#
2586config HIGHMEM
2587	bool "High Memory Support"
2588	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2589
2590config CPU_SUPPORTS_HIGHMEM
2591	bool
2592
2593config SYS_SUPPORTS_HIGHMEM
2594	bool
2595
2596config SYS_SUPPORTS_SMARTMIPS
2597	bool
2598
2599config SYS_SUPPORTS_MICROMIPS
2600	bool
2601
2602config SYS_SUPPORTS_MIPS16
2603	bool
2604	help
2605	  This option must be set if a kernel might be executed on a MIPS16-
2606	  enabled CPU even if MIPS16 is not actually being used.  In other
2607	  words, it makes the kernel MIPS16-tolerant.
2608
2609config CPU_SUPPORTS_MSA
2610	bool
2611
2612config ARCH_FLATMEM_ENABLE
2613	def_bool y
2614	depends on !NUMA && !CPU_LOONGSON2
2615
2616config ARCH_DISCONTIGMEM_ENABLE
2617	bool
2618	default y if SGI_IP27
2619	help
2620	  Say Y to support efficient handling of discontiguous physical memory,
2621	  for architectures which are either NUMA (Non-Uniform Memory Access)
2622	  or have huge holes in the physical address space for other reasons.
2623	  See <file:Documentation/vm/numa.rst> for more.
2624
2625config ARCH_SPARSEMEM_ENABLE
2626	bool
2627	select SPARSEMEM_STATIC
2628
2629config NUMA
2630	bool "NUMA Support"
2631	depends on SYS_SUPPORTS_NUMA
2632	help
2633	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2634	  Access).  This option improves performance on systems with more
2635	  than two nodes; on two node systems it is generally better to
2636	  leave it disabled; on single node systems disable this option
2637	  disabled.
2638
2639config SYS_SUPPORTS_NUMA
2640	bool
2641
2642config RELOCATABLE
2643	bool "Relocatable kernel"
2644	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2645	help
2646	  This builds a kernel image that retains relocation information
2647	  so it can be loaded someplace besides the default 1MB.
2648	  The relocations make the kernel binary about 15% larger,
2649	  but are discarded at runtime
2650
2651config RELOCATION_TABLE_SIZE
2652	hex "Relocation table size"
2653	depends on RELOCATABLE
2654	range 0x0 0x01000000
2655	default "0x00100000"
2656	---help---
2657	  A table of relocation data will be appended to the kernel binary
2658	  and parsed at boot to fix up the relocated kernel.
2659
2660	  This option allows the amount of space reserved for the table to be
2661	  adjusted, although the default of 1Mb should be ok in most cases.
2662
2663	  The build will fail and a valid size suggested if this is too small.
2664
2665	  If unsure, leave at the default value.
2666
2667config RANDOMIZE_BASE
2668	bool "Randomize the address of the kernel image"
2669	depends on RELOCATABLE
2670	---help---
2671	   Randomizes the physical and virtual address at which the
2672	   kernel image is loaded, as a security feature that
2673	   deters exploit attempts relying on knowledge of the location
2674	   of kernel internals.
2675
2676	   Entropy is generated using any coprocessor 0 registers available.
2677
2678	   The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2679
2680	   If unsure, say N.
2681
2682config RANDOMIZE_BASE_MAX_OFFSET
2683	hex "Maximum kASLR offset" if EXPERT
2684	depends on RANDOMIZE_BASE
2685	range 0x0 0x40000000 if EVA || 64BIT
2686	range 0x0 0x08000000
2687	default "0x01000000"
2688	---help---
2689	  When kASLR is active, this provides the maximum offset that will
2690	  be applied to the kernel image. It should be set according to the
2691	  amount of physical RAM available in the target system minus
2692	  PHYSICAL_START and must be a power of 2.
2693
2694	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2695	  EVA or 64-bit. The default is 16Mb.
2696
2697config NODES_SHIFT
2698	int
2699	default "6"
2700	depends on NEED_MULTIPLE_NODES
2701
2702config HW_PERF_EVENTS
2703	bool "Enable hardware performance counter support for perf events"
2704	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2705	default y
2706	help
2707	  Enable hardware performance counter support for perf events. If
2708	  disabled, perf events will use software events only.
2709
2710config SMP
2711	bool "Multi-Processing support"
2712	depends on SYS_SUPPORTS_SMP
2713	help
2714	  This enables support for systems with more than one CPU. If you have
2715	  a system with only one CPU, say N. If you have a system with more
2716	  than one CPU, say Y.
2717
2718	  If you say N here, the kernel will run on uni- and multiprocessor
2719	  machines, but will use only one CPU of a multiprocessor machine. If
2720	  you say Y here, the kernel will run on many, but not all,
2721	  uniprocessor machines. On a uniprocessor machine, the kernel
2722	  will run faster if you say N here.
2723
2724	  People using multiprocessor machines who say Y here should also say
2725	  Y to "Enhanced Real Time Clock Support", below.
2726
2727	  See also the SMP-HOWTO available at
2728	  <http://www.tldp.org/docs.html#howto>.
2729
2730	  If you don't know what to do here, say N.
2731
2732config HOTPLUG_CPU
2733	bool "Support for hot-pluggable CPUs"
2734	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2735	help
2736	  Say Y here to allow turning CPUs off and on. CPUs can be
2737	  controlled through /sys/devices/system/cpu.
2738	  (Note: power management support will enable this option
2739	    automatically on SMP systems. )
2740	  Say N if you want to disable CPU hotplug.
2741
2742config SMP_UP
2743	bool
2744
2745config SYS_SUPPORTS_MIPS_CMP
2746	bool
2747
2748config SYS_SUPPORTS_MIPS_CPS
2749	bool
2750
2751config SYS_SUPPORTS_SMP
2752	bool
2753
2754config NR_CPUS_DEFAULT_4
2755	bool
2756
2757config NR_CPUS_DEFAULT_8
2758	bool
2759
2760config NR_CPUS_DEFAULT_16
2761	bool
2762
2763config NR_CPUS_DEFAULT_32
2764	bool
2765
2766config NR_CPUS_DEFAULT_64
2767	bool
2768
2769config NR_CPUS
2770	int "Maximum number of CPUs (2-256)"
2771	range 2 256
2772	depends on SMP
2773	default "4" if NR_CPUS_DEFAULT_4
2774	default "8" if NR_CPUS_DEFAULT_8
2775	default "16" if NR_CPUS_DEFAULT_16
2776	default "32" if NR_CPUS_DEFAULT_32
2777	default "64" if NR_CPUS_DEFAULT_64
2778	help
2779	  This allows you to specify the maximum number of CPUs which this
2780	  kernel will support.  The maximum supported value is 32 for 32-bit
2781	  kernel and 64 for 64-bit kernels; the minimum value which makes
2782	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2783	  and 2 for all others.
2784
2785	  This is purely to save memory - each supported CPU adds
2786	  approximately eight kilobytes to the kernel image.  For best
2787	  performance should round up your number of processors to the next
2788	  power of two.
2789
2790config MIPS_PERF_SHARED_TC_COUNTERS
2791	bool
2792
2793config MIPS_NR_CPU_NR_MAP_1024
2794	bool
2795
2796config MIPS_NR_CPU_NR_MAP
2797	int
2798	depends on SMP
2799	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2800	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2801
2802#
2803# Timer Interrupt Frequency Configuration
2804#
2805
2806choice
2807	prompt "Timer frequency"
2808	default HZ_250
2809	help
2810	 Allows the configuration of the timer frequency.
2811
2812	config HZ_24
2813		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2814
2815	config HZ_48
2816		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2817
2818	config HZ_100
2819		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2820
2821	config HZ_128
2822		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2823
2824	config HZ_250
2825		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2826
2827	config HZ_256
2828		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2829
2830	config HZ_1000
2831		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2832
2833	config HZ_1024
2834		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2835
2836endchoice
2837
2838config SYS_SUPPORTS_24HZ
2839	bool
2840
2841config SYS_SUPPORTS_48HZ
2842	bool
2843
2844config SYS_SUPPORTS_100HZ
2845	bool
2846
2847config SYS_SUPPORTS_128HZ
2848	bool
2849
2850config SYS_SUPPORTS_250HZ
2851	bool
2852
2853config SYS_SUPPORTS_256HZ
2854	bool
2855
2856config SYS_SUPPORTS_1000HZ
2857	bool
2858
2859config SYS_SUPPORTS_1024HZ
2860	bool
2861
2862config SYS_SUPPORTS_ARBIT_HZ
2863	bool
2864	default y if !SYS_SUPPORTS_24HZ && \
2865		     !SYS_SUPPORTS_48HZ && \
2866		     !SYS_SUPPORTS_100HZ && \
2867		     !SYS_SUPPORTS_128HZ && \
2868		     !SYS_SUPPORTS_250HZ && \
2869		     !SYS_SUPPORTS_256HZ && \
2870		     !SYS_SUPPORTS_1000HZ && \
2871		     !SYS_SUPPORTS_1024HZ
2872
2873config HZ
2874	int
2875	default 24 if HZ_24
2876	default 48 if HZ_48
2877	default 100 if HZ_100
2878	default 128 if HZ_128
2879	default 250 if HZ_250
2880	default 256 if HZ_256
2881	default 1000 if HZ_1000
2882	default 1024 if HZ_1024
2883
2884config SCHED_HRTICK
2885	def_bool HIGH_RES_TIMERS
2886
2887config KEXEC
2888	bool "Kexec system call"
2889	select KEXEC_CORE
2890	help
2891	  kexec is a system call that implements the ability to shutdown your
2892	  current kernel, and to start another kernel.  It is like a reboot
2893	  but it is independent of the system firmware.   And like a reboot
2894	  you can start any kernel with it, not just Linux.
2895
2896	  The name comes from the similarity to the exec system call.
2897
2898	  It is an ongoing process to be certain the hardware in a machine
2899	  is properly shutdown, so do not be surprised if this code does not
2900	  initially work for you.  As of this writing the exact hardware
2901	  interface is strongly in flux, so no good recommendation can be
2902	  made.
2903
2904config CRASH_DUMP
2905	bool "Kernel crash dumps"
2906	help
2907	  Generate crash dump after being started by kexec.
2908	  This should be normally only set in special crash dump kernels
2909	  which are loaded in the main kernel with kexec-tools into
2910	  a specially reserved region and then later executed after
2911	  a crash by kdump/kexec. The crash dump kernel must be compiled
2912	  to a memory address not used by the main kernel or firmware using
2913	  PHYSICAL_START.
2914
2915config PHYSICAL_START
2916	hex "Physical address where the kernel is loaded"
2917	default "0xffffffff84000000"
2918	depends on CRASH_DUMP
2919	help
2920	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2921	  If you plan to use kernel for capturing the crash dump change
2922	  this value to start of the reserved region (the "X" value as
2923	  specified in the "crashkernel=YM@XM" command line boot parameter
2924	  passed to the panic-ed kernel).
2925
2926config SECCOMP
2927	bool "Enable seccomp to safely compute untrusted bytecode"
2928	depends on PROC_FS
2929	default y
2930	help
2931	  This kernel feature is useful for number crunching applications
2932	  that may need to compute untrusted bytecode during their
2933	  execution. By using pipes or other transports made available to
2934	  the process as file descriptors supporting the read/write
2935	  syscalls, it's possible to isolate those applications in
2936	  their own address space using seccomp. Once seccomp is
2937	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2938	  and the task is only allowed to execute a few safe syscalls
2939	  defined by each seccomp mode.
2940
2941	  If unsure, say Y. Only embedded should say N here.
2942
2943config MIPS_O32_FP64_SUPPORT
2944	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2945	depends on 32BIT || MIPS32_O32
2946	help
2947	  When this is enabled, the kernel will support use of 64-bit floating
2948	  point registers with binaries using the O32 ABI along with the
2949	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2950	  32-bit MIPS systems this support is at the cost of increasing the
2951	  size and complexity of the compiled FPU emulator. Thus if you are
2952	  running a MIPS32 system and know that none of your userland binaries
2953	  will require 64-bit floating point, you may wish to reduce the size
2954	  of your kernel & potentially improve FP emulation performance by
2955	  saying N here.
2956
2957	  Although binutils currently supports use of this flag the details
2958	  concerning its effect upon the O32 ABI in userland are still being
2959	  worked on. In order to avoid userland becoming dependant upon current
2960	  behaviour before the details have been finalised, this option should
2961	  be considered experimental and only enabled by those working upon
2962	  said details.
2963
2964	  If unsure, say N.
2965
2966config USE_OF
2967	bool
2968	select OF
2969	select OF_EARLY_FLATTREE
2970	select IRQ_DOMAIN
2971
2972config UHI_BOOT
2973	bool
2974
2975config BUILTIN_DTB
2976	bool
2977
2978choice
2979	prompt "Kernel appended dtb support" if USE_OF
2980	default MIPS_NO_APPENDED_DTB
2981
2982	config MIPS_NO_APPENDED_DTB
2983		bool "None"
2984		help
2985		  Do not enable appended dtb support.
2986
2987	config MIPS_ELF_APPENDED_DTB
2988		bool "vmlinux"
2989		help
2990		  With this option, the boot code will look for a device tree binary
2991		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2992		  it is empty and the DTB can be appended using binutils command
2993		  objcopy:
2994
2995		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2996
2997		  This is meant as a backward compatiblity convenience for those
2998		  systems with a bootloader that can't be upgraded to accommodate
2999		  the documented boot protocol using a device tree.
3000
3001	config MIPS_RAW_APPENDED_DTB
3002		bool "vmlinux.bin or vmlinuz.bin"
3003		help
3004		  With this option, the boot code will look for a device tree binary
3005		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3006		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3007
3008		  This is meant as a backward compatibility convenience for those
3009		  systems with a bootloader that can't be upgraded to accommodate
3010		  the documented boot protocol using a device tree.
3011
3012		  Beware that there is very little in terms of protection against
3013		  this option being confused by leftover garbage in memory that might
3014		  look like a DTB header after a reboot if no actual DTB is appended
3015		  to vmlinux.bin.  Do not leave this option active in a production kernel
3016		  if you don't intend to always append a DTB.
3017endchoice
3018
3019choice
3020	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3021	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3022					 !MIPS_MALTA && \
3023					 !CAVIUM_OCTEON_SOC
3024	default MIPS_CMDLINE_FROM_BOOTLOADER
3025
3026	config MIPS_CMDLINE_FROM_DTB
3027		depends on USE_OF
3028		bool "Dtb kernel arguments if available"
3029
3030	config MIPS_CMDLINE_DTB_EXTEND
3031		depends on USE_OF
3032		bool "Extend dtb kernel arguments with bootloader arguments"
3033
3034	config MIPS_CMDLINE_FROM_BOOTLOADER
3035		bool "Bootloader kernel arguments if available"
3036
3037	config MIPS_CMDLINE_BUILTIN_EXTEND
3038		depends on CMDLINE_BOOL
3039		bool "Extend builtin kernel arguments with bootloader arguments"
3040endchoice
3041
3042endmenu
3043
3044config LOCKDEP_SUPPORT
3045	bool
3046	default y
3047
3048config STACKTRACE_SUPPORT
3049	bool
3050	default y
3051
3052config HAVE_LATENCYTOP_SUPPORT
3053	bool
3054	default y
3055
3056config PGTABLE_LEVELS
3057	int
3058	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3059	default 3 if 64BIT && !PAGE_SIZE_64KB
3060	default 2
3061
3062config MIPS_AUTO_PFN_OFFSET
3063	bool
3064
3065menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3066
3067config PCI_DRIVERS_GENERIC
3068	select PCI_DOMAINS_GENERIC if PCI
3069	bool
3070
3071config PCI_DRIVERS_LEGACY
3072	def_bool !PCI_DRIVERS_GENERIC
3073	select NO_GENERIC_PCI_IOPORT_MAP
3074	select PCI_DOMAINS if PCI
3075
3076#
3077# ISA support is now enabled via select.  Too many systems still have the one
3078# or other ISA chip on the board that users don't know about so don't expect
3079# users to choose the right thing ...
3080#
3081config ISA
3082	bool
3083
3084config TC
3085	bool "TURBOchannel support"
3086	depends on MACH_DECSTATION
3087	help
3088	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3089	  processors.  TURBOchannel programming specifications are available
3090	  at:
3091	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3092	  and:
3093	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3094	  Linux driver support status is documented at:
3095	  <http://www.linux-mips.org/wiki/DECstation>
3096
3097config MMU
3098	bool
3099	default y
3100
3101config ARCH_MMAP_RND_BITS_MIN
3102	default 12 if 64BIT
3103	default 8
3104
3105config ARCH_MMAP_RND_BITS_MAX
3106	default 18 if 64BIT
3107	default 15
3108
3109config ARCH_MMAP_RND_COMPAT_BITS_MIN
3110       default 8
3111
3112config ARCH_MMAP_RND_COMPAT_BITS_MAX
3113       default 15
3114
3115config I8253
3116	bool
3117	select CLKSRC_I8253
3118	select CLKEVT_I8253
3119	select MIPS_EXTERNAL_TIMER
3120
3121config ZONE_DMA
3122	bool
3123
3124config ZONE_DMA32
3125	bool
3126
3127endmenu
3128
3129config TRAD_SIGNALS
3130	bool
3131
3132config MIPS32_COMPAT
3133	bool
3134
3135config COMPAT
3136	bool
3137
3138config SYSVIPC_COMPAT
3139	bool
3140
3141config MIPS32_O32
3142	bool "Kernel support for o32 binaries"
3143	depends on 64BIT
3144	select ARCH_WANT_OLD_COMPAT_IPC
3145	select COMPAT
3146	select MIPS32_COMPAT
3147	select SYSVIPC_COMPAT if SYSVIPC
3148	help
3149	  Select this option if you want to run o32 binaries.  These are pure
3150	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3151	  existing binaries are in this format.
3152
3153	  If unsure, say Y.
3154
3155config MIPS32_N32
3156	bool "Kernel support for n32 binaries"
3157	depends on 64BIT
3158	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3159	select COMPAT
3160	select MIPS32_COMPAT
3161	select SYSVIPC_COMPAT if SYSVIPC
3162	help
3163	  Select this option if you want to run n32 binaries.  These are
3164	  64-bit binaries using 32-bit quantities for addressing and certain
3165	  data that would normally be 64-bit.  They are used in special
3166	  cases.
3167
3168	  If unsure, say N.
3169
3170config BINFMT_ELF32
3171	bool
3172	default y if MIPS32_O32 || MIPS32_N32
3173	select ELFCORE
3174
3175menu "Power management options"
3176
3177config ARCH_HIBERNATION_POSSIBLE
3178	def_bool y
3179	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3180
3181config ARCH_SUSPEND_POSSIBLE
3182	def_bool y
3183	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3184
3185source "kernel/power/Kconfig"
3186
3187endmenu
3188
3189config MIPS_EXTERNAL_TIMER
3190	bool
3191
3192menu "CPU Power Management"
3193
3194if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3195source "drivers/cpufreq/Kconfig"
3196endif
3197
3198source "drivers/cpuidle/Kconfig"
3199
3200endmenu
3201
3202source "drivers/firmware/Kconfig"
3203
3204source "arch/mips/kvm/Kconfig"
3205