xref: /openbmc/linux/arch/mips/Kconfig (revision 7c768f84)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_BINFMT_ELF_STATE
6	select ARCH_CLOCKSOURCE_DATA
7	select ARCH_DISCARD_MEMBLOCK
8	select ARCH_HAS_ELF_RANDOMIZE
9	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
10	select ARCH_SUPPORTS_UPROBES
11	select ARCH_USE_BUILTIN_BSWAP
12	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
13	select ARCH_USE_QUEUED_RWLOCKS
14	select ARCH_USE_QUEUED_SPINLOCKS
15	select ARCH_WANT_IPC_PARSE_VERSION
16	select BUILDTIME_EXTABLE_SORT
17	select CLONE_BACKWARDS
18	select CPU_PM if CPU_IDLE
19	select DMA_DIRECT_OPS
20	select GENERIC_ATOMIC64 if !64BIT
21	select GENERIC_CLOCKEVENTS
22	select GENERIC_CMOS_UPDATE
23	select GENERIC_CPU_AUTOPROBE
24	select GENERIC_IRQ_PROBE
25	select GENERIC_IRQ_SHOW
26	select GENERIC_LIB_ASHLDI3
27	select GENERIC_LIB_ASHRDI3
28	select GENERIC_LIB_CMPDI2
29	select GENERIC_LIB_LSHRDI3
30	select GENERIC_LIB_UCMPDI2
31	select GENERIC_PCI_IOMAP
32	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
33	select GENERIC_SMP_IDLE_THREAD
34	select GENERIC_TIME_VSYSCALL
35	select HANDLE_DOMAIN_IRQ
36	select HAVE_ARCH_COMPILER_H
37	select HAVE_ARCH_JUMP_LABEL
38	select HAVE_ARCH_KGDB
39	select HAVE_ARCH_MMAP_RND_BITS if MMU
40	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
41	select HAVE_ARCH_SECCOMP_FILTER
42	select HAVE_ARCH_TRACEHOOK
43	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
44	select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
45	select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
46	select HAVE_CONTEXT_TRACKING
47	select HAVE_COPY_THREAD_TLS
48	select HAVE_C_RECORDMCOUNT
49	select HAVE_DEBUG_KMEMLEAK
50	select HAVE_DEBUG_STACKOVERFLOW
51	select HAVE_DMA_CONTIGUOUS
52	select HAVE_DYNAMIC_FTRACE
53	select HAVE_EXIT_THREAD
54	select HAVE_FTRACE_MCOUNT_RECORD
55	select HAVE_FUNCTION_GRAPH_TRACER
56	select HAVE_FUNCTION_TRACER
57	select HAVE_GENERIC_DMA_COHERENT
58	select HAVE_IDE
59	select HAVE_IRQ_EXIT_ON_IRQ_STACK
60	select HAVE_IRQ_TIME_ACCOUNTING
61	select HAVE_KPROBES
62	select HAVE_KRETPROBES
63	select HAVE_MEMBLOCK
64	select HAVE_MEMBLOCK_NODE_MAP
65	select HAVE_MOD_ARCH_SPECIFIC
66	select HAVE_NMI
67	select HAVE_OPROFILE
68	select HAVE_PERF_EVENTS
69	select HAVE_REGS_AND_STACK_ACCESS_API
70	select HAVE_RSEQ
71	select HAVE_STACKPROTECTOR
72	select HAVE_SYSCALL_TRACEPOINTS
73	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
74	select IRQ_FORCED_THREADING
75	select MODULES_USE_ELF_RELA if MODULES && 64BIT
76	select MODULES_USE_ELF_REL if MODULES
77	select PERF_USE_VMALLOC
78	select RTC_LIB if !MACH_LOONGSON64
79	select SYSCTL_EXCEPTION_TRACE
80	select VIRT_TO_BUS
81
82menu "Machine selection"
83
84choice
85	prompt "System type"
86	default MIPS_GENERIC
87
88config MIPS_GENERIC
89	bool "Generic board-agnostic MIPS kernel"
90	select BOOT_RAW
91	select BUILTIN_DTB
92	select CEVT_R4K
93	select CLKSRC_MIPS_GIC
94	select COMMON_CLK
95	select CPU_MIPSR2_IRQ_VI
96	select CPU_MIPSR2_IRQ_EI
97	select CSRC_R4K
98	select DMA_PERDEV_COHERENT
99	select HW_HAS_PCI
100	select IRQ_MIPS_CPU
101	select LIBFDT
102	select MIPS_AUTO_PFN_OFFSET
103	select MIPS_CPU_SCACHE
104	select MIPS_GIC
105	select MIPS_L1_CACHE_SHIFT_7
106	select NO_EXCEPT_FILL
107	select PCI_DRIVERS_GENERIC
108	select PINCTRL
109	select SMP_UP if SMP
110	select SWAP_IO_SPACE
111	select SYS_HAS_CPU_MIPS32_R1
112	select SYS_HAS_CPU_MIPS32_R2
113	select SYS_HAS_CPU_MIPS32_R6
114	select SYS_HAS_CPU_MIPS64_R1
115	select SYS_HAS_CPU_MIPS64_R2
116	select SYS_HAS_CPU_MIPS64_R6
117	select SYS_SUPPORTS_32BIT_KERNEL
118	select SYS_SUPPORTS_64BIT_KERNEL
119	select SYS_SUPPORTS_BIG_ENDIAN
120	select SYS_SUPPORTS_HIGHMEM
121	select SYS_SUPPORTS_LITTLE_ENDIAN
122	select SYS_SUPPORTS_MICROMIPS
123	select SYS_SUPPORTS_MIPS_CPS
124	select SYS_SUPPORTS_MIPS16
125	select SYS_SUPPORTS_MULTITHREADING
126	select SYS_SUPPORTS_RELOCATABLE
127	select SYS_SUPPORTS_SMARTMIPS
128	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
129	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
130	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
131	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
132	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
133	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
134	select USE_OF
135	help
136	  Select this to build a kernel which aims to support multiple boards,
137	  generally using a flattened device tree passed from the bootloader
138	  using the boot protocol defined in the UHI (Unified Hosting
139	  Interface) specification.
140
141config MIPS_ALCHEMY
142	bool "Alchemy processor based machines"
143	select PHYS_ADDR_T_64BIT
144	select CEVT_R4K
145	select CSRC_R4K
146	select IRQ_MIPS_CPU
147	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
148	select SYS_HAS_CPU_MIPS32_R1
149	select SYS_SUPPORTS_32BIT_KERNEL
150	select SYS_SUPPORTS_APM_EMULATION
151	select GPIOLIB
152	select SYS_SUPPORTS_ZBOOT
153	select COMMON_CLK
154
155config AR7
156	bool "Texas Instruments AR7"
157	select BOOT_ELF32
158	select DMA_NONCOHERENT
159	select CEVT_R4K
160	select CSRC_R4K
161	select IRQ_MIPS_CPU
162	select NO_EXCEPT_FILL
163	select SWAP_IO_SPACE
164	select SYS_HAS_CPU_MIPS32_R1
165	select SYS_HAS_EARLY_PRINTK
166	select SYS_SUPPORTS_32BIT_KERNEL
167	select SYS_SUPPORTS_LITTLE_ENDIAN
168	select SYS_SUPPORTS_MIPS16
169	select SYS_SUPPORTS_ZBOOT_UART16550
170	select GPIOLIB
171	select VLYNQ
172	select HAVE_CLK
173	help
174	  Support for the Texas Instruments AR7 System-on-a-Chip
175	  family: TNETD7100, 7200 and 7300.
176
177config ATH25
178	bool "Atheros AR231x/AR531x SoC support"
179	select CEVT_R4K
180	select CSRC_R4K
181	select DMA_NONCOHERENT
182	select IRQ_MIPS_CPU
183	select IRQ_DOMAIN
184	select SYS_HAS_CPU_MIPS32_R1
185	select SYS_SUPPORTS_BIG_ENDIAN
186	select SYS_SUPPORTS_32BIT_KERNEL
187	select SYS_HAS_EARLY_PRINTK
188	help
189	  Support for Atheros AR231x and Atheros AR531x based boards
190
191config ATH79
192	bool "Atheros AR71XX/AR724X/AR913X based boards"
193	select ARCH_HAS_RESET_CONTROLLER
194	select BOOT_RAW
195	select CEVT_R4K
196	select CSRC_R4K
197	select DMA_NONCOHERENT
198	select GPIOLIB
199	select PINCTRL
200	select HAVE_CLK
201	select COMMON_CLK
202	select CLKDEV_LOOKUP
203	select IRQ_MIPS_CPU
204	select MIPS_MACHINE
205	select SYS_HAS_CPU_MIPS32_R2
206	select SYS_HAS_EARLY_PRINTK
207	select SYS_SUPPORTS_32BIT_KERNEL
208	select SYS_SUPPORTS_BIG_ENDIAN
209	select SYS_SUPPORTS_MIPS16
210	select SYS_SUPPORTS_ZBOOT_UART_PROM
211	select USE_OF
212	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
213	help
214	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
215
216config BMIPS_GENERIC
217	bool "Broadcom Generic BMIPS kernel"
218	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
219	select ARCH_HAS_PHYS_TO_DMA
220	select BOOT_RAW
221	select NO_EXCEPT_FILL
222	select USE_OF
223	select CEVT_R4K
224	select CSRC_R4K
225	select SYNC_R4K
226	select COMMON_CLK
227	select BCM6345_L1_IRQ
228	select BCM7038_L1_IRQ
229	select BCM7120_L2_IRQ
230	select BRCMSTB_L2_IRQ
231	select IRQ_MIPS_CPU
232	select DMA_NONCOHERENT
233	select SYS_SUPPORTS_32BIT_KERNEL
234	select SYS_SUPPORTS_LITTLE_ENDIAN
235	select SYS_SUPPORTS_BIG_ENDIAN
236	select SYS_SUPPORTS_HIGHMEM
237	select SYS_HAS_CPU_BMIPS32_3300
238	select SYS_HAS_CPU_BMIPS4350
239	select SYS_HAS_CPU_BMIPS4380
240	select SYS_HAS_CPU_BMIPS5000
241	select SWAP_IO_SPACE
242	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
243	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
244	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
245	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
246	select HARDIRQS_SW_RESEND
247	help
248	  Build a generic DT-based kernel image that boots on select
249	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
250	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
251	  must be set appropriately for your board.
252
253config BCM47XX
254	bool "Broadcom BCM47XX based boards"
255	select BOOT_RAW
256	select CEVT_R4K
257	select CSRC_R4K
258	select DMA_NONCOHERENT
259	select HW_HAS_PCI
260	select IRQ_MIPS_CPU
261	select SYS_HAS_CPU_MIPS32_R1
262	select NO_EXCEPT_FILL
263	select SYS_SUPPORTS_32BIT_KERNEL
264	select SYS_SUPPORTS_LITTLE_ENDIAN
265	select SYS_SUPPORTS_MIPS16
266	select SYS_SUPPORTS_ZBOOT
267	select SYS_HAS_EARLY_PRINTK
268	select USE_GENERIC_EARLY_PRINTK_8250
269	select GPIOLIB
270	select LEDS_GPIO_REGISTER
271	select BCM47XX_NVRAM
272	select BCM47XX_SPROM
273	select BCM47XX_SSB if !BCM47XX_BCMA
274	help
275	 Support for BCM47XX based boards
276
277config BCM63XX
278	bool "Broadcom BCM63XX based boards"
279	select BOOT_RAW
280	select CEVT_R4K
281	select CSRC_R4K
282	select SYNC_R4K
283	select DMA_NONCOHERENT
284	select IRQ_MIPS_CPU
285	select SYS_SUPPORTS_32BIT_KERNEL
286	select SYS_SUPPORTS_BIG_ENDIAN
287	select SYS_HAS_EARLY_PRINTK
288	select SWAP_IO_SPACE
289	select GPIOLIB
290	select HAVE_CLK
291	select MIPS_L1_CACHE_SHIFT_4
292	select CLKDEV_LOOKUP
293	help
294	 Support for BCM63XX based boards
295
296config MIPS_COBALT
297	bool "Cobalt Server"
298	select CEVT_R4K
299	select CSRC_R4K
300	select CEVT_GT641XX
301	select DMA_NONCOHERENT
302	select HW_HAS_PCI
303	select I8253
304	select I8259
305	select IRQ_MIPS_CPU
306	select IRQ_GT641XX
307	select PCI_GT64XXX_PCI0
308	select PCI
309	select SYS_HAS_CPU_NEVADA
310	select SYS_HAS_EARLY_PRINTK
311	select SYS_SUPPORTS_32BIT_KERNEL
312	select SYS_SUPPORTS_64BIT_KERNEL
313	select SYS_SUPPORTS_LITTLE_ENDIAN
314	select USE_GENERIC_EARLY_PRINTK_8250
315
316config MACH_DECSTATION
317	bool "DECstations"
318	select BOOT_ELF32
319	select CEVT_DS1287
320	select CEVT_R4K if CPU_R4X00
321	select CSRC_IOASIC
322	select CSRC_R4K if CPU_R4X00
323	select CPU_DADDI_WORKAROUNDS if 64BIT
324	select CPU_R4000_WORKAROUNDS if 64BIT
325	select CPU_R4400_WORKAROUNDS if 64BIT
326	select DMA_NONCOHERENT
327	select NO_IOPORT_MAP
328	select IRQ_MIPS_CPU
329	select SYS_HAS_CPU_R3000
330	select SYS_HAS_CPU_R4X00
331	select SYS_SUPPORTS_32BIT_KERNEL
332	select SYS_SUPPORTS_64BIT_KERNEL
333	select SYS_SUPPORTS_LITTLE_ENDIAN
334	select SYS_SUPPORTS_128HZ
335	select SYS_SUPPORTS_256HZ
336	select SYS_SUPPORTS_1024HZ
337	select MIPS_L1_CACHE_SHIFT_4
338	help
339	  This enables support for DEC's MIPS based workstations.  For details
340	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
341	  DECstation porting pages on <http://decstation.unix-ag.org/>.
342
343	  If you have one of the following DECstation Models you definitely
344	  want to choose R4xx0 for the CPU Type:
345
346		DECstation 5000/50
347		DECstation 5000/150
348		DECstation 5000/260
349		DECsystem 5900/260
350
351	  otherwise choose R3000.
352
353config MACH_JAZZ
354	bool "Jazz family of machines"
355	select ARCH_MIGHT_HAVE_PC_PARPORT
356	select ARCH_MIGHT_HAVE_PC_SERIO
357	select FW_ARC
358	select FW_ARC32
359	select ARCH_MAY_HAVE_PC_FDC
360	select CEVT_R4K
361	select CSRC_R4K
362	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
363	select GENERIC_ISA_DMA
364	select HAVE_PCSPKR_PLATFORM
365	select IRQ_MIPS_CPU
366	select I8253
367	select I8259
368	select ISA
369	select SYS_HAS_CPU_R4X00
370	select SYS_SUPPORTS_32BIT_KERNEL
371	select SYS_SUPPORTS_64BIT_KERNEL
372	select SYS_SUPPORTS_100HZ
373	help
374	 This a family of machines based on the MIPS R4030 chipset which was
375	 used by several vendors to build RISC/os and Windows NT workstations.
376	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
377	 Olivetti M700-10 workstations.
378
379config MACH_INGENIC
380	bool "Ingenic SoC based machines"
381	select SYS_SUPPORTS_32BIT_KERNEL
382	select SYS_SUPPORTS_LITTLE_ENDIAN
383	select SYS_SUPPORTS_ZBOOT_UART16550
384	select DMA_NONCOHERENT
385	select IRQ_MIPS_CPU
386	select PINCTRL
387	select GPIOLIB
388	select COMMON_CLK
389	select GENERIC_IRQ_CHIP
390	select BUILTIN_DTB
391	select USE_OF
392	select LIBFDT
393
394config LANTIQ
395	bool "Lantiq based platforms"
396	select DMA_NONCOHERENT
397	select IRQ_MIPS_CPU
398	select CEVT_R4K
399	select CSRC_R4K
400	select SYS_HAS_CPU_MIPS32_R1
401	select SYS_HAS_CPU_MIPS32_R2
402	select SYS_SUPPORTS_BIG_ENDIAN
403	select SYS_SUPPORTS_32BIT_KERNEL
404	select SYS_SUPPORTS_MIPS16
405	select SYS_SUPPORTS_MULTITHREADING
406	select SYS_SUPPORTS_VPE_LOADER
407	select SYS_HAS_EARLY_PRINTK
408	select GPIOLIB
409	select SWAP_IO_SPACE
410	select BOOT_RAW
411	select CLKDEV_LOOKUP
412	select USE_OF
413	select PINCTRL
414	select PINCTRL_LANTIQ
415	select ARCH_HAS_RESET_CONTROLLER
416	select RESET_CONTROLLER
417
418config LASAT
419	bool "LASAT Networks platforms"
420	select CEVT_R4K
421	select CRC32
422	select CSRC_R4K
423	select DMA_NONCOHERENT
424	select SYS_HAS_EARLY_PRINTK
425	select HW_HAS_PCI
426	select IRQ_MIPS_CPU
427	select PCI_GT64XXX_PCI0
428	select MIPS_NILE4
429	select R5000_CPU_SCACHE
430	select SYS_HAS_CPU_R5000
431	select SYS_SUPPORTS_32BIT_KERNEL
432	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
433	select SYS_SUPPORTS_LITTLE_ENDIAN
434
435config MACH_LOONGSON32
436	bool "Loongson-1 family of machines"
437	select SYS_SUPPORTS_ZBOOT
438	help
439	  This enables support for the Loongson-1 family of machines.
440
441	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
442	  the Institute of Computing Technology (ICT), Chinese Academy of
443	  Sciences (CAS).
444
445config MACH_LOONGSON64
446	bool "Loongson-2/3 family of machines"
447	select SYS_SUPPORTS_ZBOOT
448	help
449	  This enables the support of Loongson-2/3 family of machines.
450
451	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
452	  family of multi-core CPUs. They are both 64-bit general-purpose
453	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
454	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
455	  in the People's Republic of China. The chief architect is Professor
456	  Weiwu Hu.
457
458config MACH_PISTACHIO
459	bool "IMG Pistachio SoC based boards"
460	select BOOT_ELF32
461	select BOOT_RAW
462	select CEVT_R4K
463	select CLKSRC_MIPS_GIC
464	select COMMON_CLK
465	select CSRC_R4K
466	select DMA_NONCOHERENT
467	select GPIOLIB
468	select IRQ_MIPS_CPU
469	select LIBFDT
470	select MFD_SYSCON
471	select MIPS_CPU_SCACHE
472	select MIPS_GIC
473	select PINCTRL
474	select REGULATOR
475	select SYS_HAS_CPU_MIPS32_R2
476	select SYS_SUPPORTS_32BIT_KERNEL
477	select SYS_SUPPORTS_LITTLE_ENDIAN
478	select SYS_SUPPORTS_MIPS_CPS
479	select SYS_SUPPORTS_MULTITHREADING
480	select SYS_SUPPORTS_RELOCATABLE
481	select SYS_SUPPORTS_ZBOOT
482	select SYS_HAS_EARLY_PRINTK
483	select USE_GENERIC_EARLY_PRINTK_8250
484	select USE_OF
485	help
486	  This enables support for the IMG Pistachio SoC platform.
487
488config MIPS_MALTA
489	bool "MIPS Malta board"
490	select ARCH_MAY_HAVE_PC_FDC
491	select ARCH_MIGHT_HAVE_PC_PARPORT
492	select ARCH_MIGHT_HAVE_PC_SERIO
493	select BOOT_ELF32
494	select BOOT_RAW
495	select BUILTIN_DTB
496	select CEVT_R4K
497	select CSRC_R4K
498	select CLKSRC_MIPS_GIC
499	select COMMON_CLK
500	select DMA_MAYBE_COHERENT
501	select GENERIC_ISA_DMA
502	select HAVE_PCSPKR_PLATFORM
503	select IRQ_MIPS_CPU
504	select MIPS_GIC
505	select HW_HAS_PCI
506	select I8253
507	select I8259
508	select MIPS_BONITO64
509	select MIPS_CPU_SCACHE
510	select MIPS_L1_CACHE_SHIFT_6
511	select PCI_GT64XXX_PCI0
512	select MIPS_MSC
513	select SMP_UP if SMP
514	select SWAP_IO_SPACE
515	select SYS_HAS_CPU_MIPS32_R1
516	select SYS_HAS_CPU_MIPS32_R2
517	select SYS_HAS_CPU_MIPS32_R3_5
518	select SYS_HAS_CPU_MIPS32_R5
519	select SYS_HAS_CPU_MIPS32_R6
520	select SYS_HAS_CPU_MIPS64_R1
521	select SYS_HAS_CPU_MIPS64_R2
522	select SYS_HAS_CPU_MIPS64_R6
523	select SYS_HAS_CPU_NEVADA
524	select SYS_HAS_CPU_RM7000
525	select SYS_SUPPORTS_32BIT_KERNEL
526	select SYS_SUPPORTS_64BIT_KERNEL
527	select SYS_SUPPORTS_BIG_ENDIAN
528	select SYS_SUPPORTS_HIGHMEM
529	select SYS_SUPPORTS_LITTLE_ENDIAN
530	select SYS_SUPPORTS_MICROMIPS
531	select SYS_SUPPORTS_MIPS_CMP
532	select SYS_SUPPORTS_MIPS_CPS
533	select SYS_SUPPORTS_MIPS16
534	select SYS_SUPPORTS_MULTITHREADING
535	select SYS_SUPPORTS_SMARTMIPS
536	select SYS_SUPPORTS_VPE_LOADER
537	select SYS_SUPPORTS_ZBOOT
538	select SYS_SUPPORTS_RELOCATABLE
539	select USE_OF
540	select LIBFDT
541	select ZONE_DMA32 if 64BIT
542	select BUILTIN_DTB
543	select LIBFDT
544	help
545	  This enables support for the MIPS Technologies Malta evaluation
546	  board.
547
548config MACH_PIC32
549	bool "Microchip PIC32 Family"
550	help
551	  This enables support for the Microchip PIC32 family of platforms.
552
553	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
554	  microcontrollers.
555
556config NEC_MARKEINS
557	bool "NEC EMMA2RH Mark-eins board"
558	select SOC_EMMA2RH
559	select HW_HAS_PCI
560	help
561	  This enables support for the NEC Electronics Mark-eins boards.
562
563config MACH_VR41XX
564	bool "NEC VR4100 series based machines"
565	select CEVT_R4K
566	select CSRC_R4K
567	select SYS_HAS_CPU_VR41XX
568	select SYS_SUPPORTS_MIPS16
569	select GPIOLIB
570
571config NXP_STB220
572	bool "NXP STB220 board"
573	select SOC_PNX833X
574	help
575	 Support for NXP Semiconductors STB220 Development Board.
576
577config NXP_STB225
578	bool "NXP 225 board"
579	select SOC_PNX833X
580	select SOC_PNX8335
581	help
582	 Support for NXP Semiconductors STB225 Development Board.
583
584config PMC_MSP
585	bool "PMC-Sierra MSP chipsets"
586	select CEVT_R4K
587	select CSRC_R4K
588	select DMA_NONCOHERENT
589	select SWAP_IO_SPACE
590	select NO_EXCEPT_FILL
591	select BOOT_RAW
592	select SYS_HAS_CPU_MIPS32_R1
593	select SYS_HAS_CPU_MIPS32_R2
594	select SYS_SUPPORTS_32BIT_KERNEL
595	select SYS_SUPPORTS_BIG_ENDIAN
596	select SYS_SUPPORTS_MIPS16
597	select IRQ_MIPS_CPU
598	select SERIAL_8250
599	select SERIAL_8250_CONSOLE
600	select USB_EHCI_BIG_ENDIAN_MMIO
601	select USB_EHCI_BIG_ENDIAN_DESC
602	help
603	  This adds support for the PMC-Sierra family of Multi-Service
604	  Processor System-On-A-Chips.  These parts include a number
605	  of integrated peripherals, interfaces and DSPs in addition to
606	  a variety of MIPS cores.
607
608config RALINK
609	bool "Ralink based machines"
610	select CEVT_R4K
611	select CSRC_R4K
612	select BOOT_RAW
613	select DMA_NONCOHERENT
614	select IRQ_MIPS_CPU
615	select USE_OF
616	select SYS_HAS_CPU_MIPS32_R1
617	select SYS_HAS_CPU_MIPS32_R2
618	select SYS_SUPPORTS_32BIT_KERNEL
619	select SYS_SUPPORTS_LITTLE_ENDIAN
620	select SYS_SUPPORTS_MIPS16
621	select SYS_HAS_EARLY_PRINTK
622	select CLKDEV_LOOKUP
623	select ARCH_HAS_RESET_CONTROLLER
624	select RESET_CONTROLLER
625
626config SGI_IP22
627	bool "SGI IP22 (Indy/Indigo2)"
628	select FW_ARC
629	select FW_ARC32
630	select ARCH_MIGHT_HAVE_PC_SERIO
631	select BOOT_ELF32
632	select CEVT_R4K
633	select CSRC_R4K
634	select DEFAULT_SGI_PARTITION
635	select DMA_NONCOHERENT
636	select HW_HAS_EISA
637	select I8253
638	select I8259
639	select IP22_CPU_SCACHE
640	select IRQ_MIPS_CPU
641	select GENERIC_ISA_DMA_SUPPORT_BROKEN
642	select SGI_HAS_I8042
643	select SGI_HAS_INDYDOG
644	select SGI_HAS_HAL2
645	select SGI_HAS_SEEQ
646	select SGI_HAS_WD93
647	select SGI_HAS_ZILOG
648	select SWAP_IO_SPACE
649	select SYS_HAS_CPU_R4X00
650	select SYS_HAS_CPU_R5000
651	#
652	# Disable EARLY_PRINTK for now since it leads to overwritten prom
653	# memory during early boot on some machines.
654	#
655	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
656	# for a more details discussion
657	#
658	# select SYS_HAS_EARLY_PRINTK
659	select SYS_SUPPORTS_32BIT_KERNEL
660	select SYS_SUPPORTS_64BIT_KERNEL
661	select SYS_SUPPORTS_BIG_ENDIAN
662	select MIPS_L1_CACHE_SHIFT_7
663	help
664	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
665	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
666	  that runs on these, say Y here.
667
668config SGI_IP27
669	bool "SGI IP27 (Origin200/2000)"
670	select ARCH_HAS_PHYS_TO_DMA
671	select FW_ARC
672	select FW_ARC64
673	select BOOT_ELF64
674	select DEFAULT_SGI_PARTITION
675	select SYS_HAS_EARLY_PRINTK
676	select HW_HAS_PCI
677	select NR_CPUS_DEFAULT_64
678	select SYS_HAS_CPU_R10000
679	select SYS_SUPPORTS_64BIT_KERNEL
680	select SYS_SUPPORTS_BIG_ENDIAN
681	select SYS_SUPPORTS_NUMA
682	select SYS_SUPPORTS_SMP
683	select MIPS_L1_CACHE_SHIFT_7
684	help
685	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
686	  workstations.  To compile a Linux kernel that runs on these, say Y
687	  here.
688
689config SGI_IP28
690	bool "SGI IP28 (Indigo2 R10k)"
691	select FW_ARC
692	select FW_ARC64
693	select ARCH_MIGHT_HAVE_PC_SERIO
694	select BOOT_ELF64
695	select CEVT_R4K
696	select CSRC_R4K
697	select DEFAULT_SGI_PARTITION
698	select DMA_NONCOHERENT
699	select GENERIC_ISA_DMA_SUPPORT_BROKEN
700	select IRQ_MIPS_CPU
701	select HW_HAS_EISA
702	select I8253
703	select I8259
704	select SGI_HAS_I8042
705	select SGI_HAS_INDYDOG
706	select SGI_HAS_HAL2
707	select SGI_HAS_SEEQ
708	select SGI_HAS_WD93
709	select SGI_HAS_ZILOG
710	select SWAP_IO_SPACE
711	select SYS_HAS_CPU_R10000
712	#
713	# Disable EARLY_PRINTK for now since it leads to overwritten prom
714	# memory during early boot on some machines.
715	#
716	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
717	# for a more details discussion
718	#
719	# select SYS_HAS_EARLY_PRINTK
720	select SYS_SUPPORTS_64BIT_KERNEL
721	select SYS_SUPPORTS_BIG_ENDIAN
722	select MIPS_L1_CACHE_SHIFT_7
723      help
724        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
725        kernel that runs on these, say Y here.
726
727config SGI_IP32
728	bool "SGI IP32 (O2)"
729	select ARCH_HAS_PHYS_TO_DMA
730	select FW_ARC
731	select FW_ARC32
732	select BOOT_ELF32
733	select CEVT_R4K
734	select CSRC_R4K
735	select DMA_NONCOHERENT
736	select HW_HAS_PCI
737	select IRQ_MIPS_CPU
738	select R5000_CPU_SCACHE
739	select RM7000_CPU_SCACHE
740	select SYS_HAS_CPU_R5000
741	select SYS_HAS_CPU_R10000 if BROKEN
742	select SYS_HAS_CPU_RM7000
743	select SYS_HAS_CPU_NEVADA
744	select SYS_SUPPORTS_64BIT_KERNEL
745	select SYS_SUPPORTS_BIG_ENDIAN
746	help
747	  If you want this kernel to run on SGI O2 workstation, say Y here.
748
749config SIBYTE_CRHINE
750	bool "Sibyte BCM91120C-CRhine"
751	select BOOT_ELF32
752	select SIBYTE_BCM1120
753	select SWAP_IO_SPACE
754	select SYS_HAS_CPU_SB1
755	select SYS_SUPPORTS_BIG_ENDIAN
756	select SYS_SUPPORTS_LITTLE_ENDIAN
757
758config SIBYTE_CARMEL
759	bool "Sibyte BCM91120x-Carmel"
760	select BOOT_ELF32
761	select SIBYTE_BCM1120
762	select SWAP_IO_SPACE
763	select SYS_HAS_CPU_SB1
764	select SYS_SUPPORTS_BIG_ENDIAN
765	select SYS_SUPPORTS_LITTLE_ENDIAN
766
767config SIBYTE_CRHONE
768	bool "Sibyte BCM91125C-CRhone"
769	select BOOT_ELF32
770	select SIBYTE_BCM1125
771	select SWAP_IO_SPACE
772	select SYS_HAS_CPU_SB1
773	select SYS_SUPPORTS_BIG_ENDIAN
774	select SYS_SUPPORTS_HIGHMEM
775	select SYS_SUPPORTS_LITTLE_ENDIAN
776
777config SIBYTE_RHONE
778	bool "Sibyte BCM91125E-Rhone"
779	select BOOT_ELF32
780	select SIBYTE_BCM1125H
781	select SWAP_IO_SPACE
782	select SYS_HAS_CPU_SB1
783	select SYS_SUPPORTS_BIG_ENDIAN
784	select SYS_SUPPORTS_LITTLE_ENDIAN
785
786config SIBYTE_SWARM
787	bool "Sibyte BCM91250A-SWARM"
788	select BOOT_ELF32
789	select HAVE_PATA_PLATFORM
790	select SIBYTE_SB1250
791	select SWAP_IO_SPACE
792	select SYS_HAS_CPU_SB1
793	select SYS_SUPPORTS_BIG_ENDIAN
794	select SYS_SUPPORTS_HIGHMEM
795	select SYS_SUPPORTS_LITTLE_ENDIAN
796	select ZONE_DMA32 if 64BIT
797
798config SIBYTE_LITTLESUR
799	bool "Sibyte BCM91250C2-LittleSur"
800	select BOOT_ELF32
801	select HAVE_PATA_PLATFORM
802	select SIBYTE_SB1250
803	select SWAP_IO_SPACE
804	select SYS_HAS_CPU_SB1
805	select SYS_SUPPORTS_BIG_ENDIAN
806	select SYS_SUPPORTS_HIGHMEM
807	select SYS_SUPPORTS_LITTLE_ENDIAN
808
809config SIBYTE_SENTOSA
810	bool "Sibyte BCM91250E-Sentosa"
811	select BOOT_ELF32
812	select SIBYTE_SB1250
813	select SWAP_IO_SPACE
814	select SYS_HAS_CPU_SB1
815	select SYS_SUPPORTS_BIG_ENDIAN
816	select SYS_SUPPORTS_LITTLE_ENDIAN
817
818config SIBYTE_BIGSUR
819	bool "Sibyte BCM91480B-BigSur"
820	select BOOT_ELF32
821	select NR_CPUS_DEFAULT_4
822	select SIBYTE_BCM1x80
823	select SWAP_IO_SPACE
824	select SYS_HAS_CPU_SB1
825	select SYS_SUPPORTS_BIG_ENDIAN
826	select SYS_SUPPORTS_HIGHMEM
827	select SYS_SUPPORTS_LITTLE_ENDIAN
828	select ZONE_DMA32 if 64BIT
829
830config SNI_RM
831	bool "SNI RM200/300/400"
832	select FW_ARC if CPU_LITTLE_ENDIAN
833	select FW_ARC32 if CPU_LITTLE_ENDIAN
834	select FW_SNIPROM if CPU_BIG_ENDIAN
835	select ARCH_MAY_HAVE_PC_FDC
836	select ARCH_MIGHT_HAVE_PC_PARPORT
837	select ARCH_MIGHT_HAVE_PC_SERIO
838	select BOOT_ELF32
839	select CEVT_R4K
840	select CSRC_R4K
841	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
842	select DMA_NONCOHERENT
843	select GENERIC_ISA_DMA
844	select HAVE_PCSPKR_PLATFORM
845	select HW_HAS_EISA
846	select HW_HAS_PCI
847	select IRQ_MIPS_CPU
848	select I8253
849	select I8259
850	select ISA
851	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
852	select SYS_HAS_CPU_R4X00
853	select SYS_HAS_CPU_R5000
854	select SYS_HAS_CPU_R10000
855	select R5000_CPU_SCACHE
856	select SYS_HAS_EARLY_PRINTK
857	select SYS_SUPPORTS_32BIT_KERNEL
858	select SYS_SUPPORTS_64BIT_KERNEL
859	select SYS_SUPPORTS_BIG_ENDIAN
860	select SYS_SUPPORTS_HIGHMEM
861	select SYS_SUPPORTS_LITTLE_ENDIAN
862	help
863	  The SNI RM200/300/400 are MIPS-based machines manufactured by
864	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
865	  Technology and now in turn merged with Fujitsu.  Say Y here to
866	  support this machine type.
867
868config MACH_TX39XX
869	bool "Toshiba TX39 series based machines"
870
871config MACH_TX49XX
872	bool "Toshiba TX49 series based machines"
873
874config MIKROTIK_RB532
875	bool "Mikrotik RB532 boards"
876	select CEVT_R4K
877	select CSRC_R4K
878	select DMA_NONCOHERENT
879	select HW_HAS_PCI
880	select IRQ_MIPS_CPU
881	select SYS_HAS_CPU_MIPS32_R1
882	select SYS_SUPPORTS_32BIT_KERNEL
883	select SYS_SUPPORTS_LITTLE_ENDIAN
884	select SWAP_IO_SPACE
885	select BOOT_RAW
886	select GPIOLIB
887	select MIPS_L1_CACHE_SHIFT_4
888	help
889	  Support the Mikrotik(tm) RouterBoard 532 series,
890	  based on the IDT RC32434 SoC.
891
892config CAVIUM_OCTEON_SOC
893	bool "Cavium Networks Octeon SoC based boards"
894	select CEVT_R4K
895	select ARCH_HAS_PHYS_TO_DMA
896	select HAS_RAPIDIO
897	select PHYS_ADDR_T_64BIT
898	select SYS_SUPPORTS_64BIT_KERNEL
899	select SYS_SUPPORTS_BIG_ENDIAN
900	select EDAC_SUPPORT
901	select EDAC_ATOMIC_SCRUB
902	select SYS_SUPPORTS_LITTLE_ENDIAN
903	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
904	select SYS_HAS_EARLY_PRINTK
905	select SYS_HAS_CPU_CAVIUM_OCTEON
906	select HW_HAS_PCI
907	select ZONE_DMA32
908	select HOLES_IN_ZONE
909	select GPIOLIB
910	select LIBFDT
911	select USE_OF
912	select ARCH_SPARSEMEM_ENABLE
913	select SYS_SUPPORTS_SMP
914	select NR_CPUS_DEFAULT_64
915	select MIPS_NR_CPU_NR_MAP_1024
916	select BUILTIN_DTB
917	select MTD_COMPLEX_MAPPINGS
918	select SWIOTLB
919	select SYS_SUPPORTS_RELOCATABLE
920	help
921	  This option supports all of the Octeon reference boards from Cavium
922	  Networks. It builds a kernel that dynamically determines the Octeon
923	  CPU type and supports all known board reference implementations.
924	  Some of the supported boards are:
925		EBT3000
926		EBH3000
927		EBH3100
928		Thunder
929		Kodama
930		Hikari
931	  Say Y here for most Octeon reference boards.
932
933config NLM_XLR_BOARD
934	bool "Netlogic XLR/XLS based systems"
935	select BOOT_ELF32
936	select NLM_COMMON
937	select SYS_HAS_CPU_XLR
938	select SYS_SUPPORTS_SMP
939	select HW_HAS_PCI
940	select SWAP_IO_SPACE
941	select SYS_SUPPORTS_32BIT_KERNEL
942	select SYS_SUPPORTS_64BIT_KERNEL
943	select PHYS_ADDR_T_64BIT
944	select SYS_SUPPORTS_BIG_ENDIAN
945	select SYS_SUPPORTS_HIGHMEM
946	select NR_CPUS_DEFAULT_32
947	select CEVT_R4K
948	select CSRC_R4K
949	select IRQ_MIPS_CPU
950	select ZONE_DMA32 if 64BIT
951	select SYNC_R4K
952	select SYS_HAS_EARLY_PRINTK
953	select SYS_SUPPORTS_ZBOOT
954	select SYS_SUPPORTS_ZBOOT_UART16550
955	help
956	  Support for systems based on Netlogic XLR and XLS processors.
957	  Say Y here if you have a XLR or XLS based board.
958
959config NLM_XLP_BOARD
960	bool "Netlogic XLP based systems"
961	select BOOT_ELF32
962	select NLM_COMMON
963	select SYS_HAS_CPU_XLP
964	select SYS_SUPPORTS_SMP
965	select HW_HAS_PCI
966	select SYS_SUPPORTS_32BIT_KERNEL
967	select SYS_SUPPORTS_64BIT_KERNEL
968	select PHYS_ADDR_T_64BIT
969	select GPIOLIB
970	select SYS_SUPPORTS_BIG_ENDIAN
971	select SYS_SUPPORTS_LITTLE_ENDIAN
972	select SYS_SUPPORTS_HIGHMEM
973	select NR_CPUS_DEFAULT_32
974	select CEVT_R4K
975	select CSRC_R4K
976	select IRQ_MIPS_CPU
977	select ZONE_DMA32 if 64BIT
978	select SYNC_R4K
979	select SYS_HAS_EARLY_PRINTK
980	select USE_OF
981	select SYS_SUPPORTS_ZBOOT
982	select SYS_SUPPORTS_ZBOOT_UART16550
983	help
984	  This board is based on Netlogic XLP Processor.
985	  Say Y here if you have a XLP based board.
986
987config MIPS_PARAVIRT
988	bool "Para-Virtualized guest system"
989	select CEVT_R4K
990	select CSRC_R4K
991	select SYS_SUPPORTS_64BIT_KERNEL
992	select SYS_SUPPORTS_32BIT_KERNEL
993	select SYS_SUPPORTS_BIG_ENDIAN
994	select SYS_SUPPORTS_SMP
995	select NR_CPUS_DEFAULT_4
996	select SYS_HAS_EARLY_PRINTK
997	select SYS_HAS_CPU_MIPS32_R2
998	select SYS_HAS_CPU_MIPS64_R2
999	select SYS_HAS_CPU_CAVIUM_OCTEON
1000	select HW_HAS_PCI
1001	select SWAP_IO_SPACE
1002	help
1003	  This option supports guest running under ????
1004
1005endchoice
1006
1007source "arch/mips/alchemy/Kconfig"
1008source "arch/mips/ath25/Kconfig"
1009source "arch/mips/ath79/Kconfig"
1010source "arch/mips/bcm47xx/Kconfig"
1011source "arch/mips/bcm63xx/Kconfig"
1012source "arch/mips/bmips/Kconfig"
1013source "arch/mips/generic/Kconfig"
1014source "arch/mips/jazz/Kconfig"
1015source "arch/mips/jz4740/Kconfig"
1016source "arch/mips/lantiq/Kconfig"
1017source "arch/mips/lasat/Kconfig"
1018source "arch/mips/pic32/Kconfig"
1019source "arch/mips/pistachio/Kconfig"
1020source "arch/mips/pmcs-msp71xx/Kconfig"
1021source "arch/mips/ralink/Kconfig"
1022source "arch/mips/sgi-ip27/Kconfig"
1023source "arch/mips/sibyte/Kconfig"
1024source "arch/mips/txx9/Kconfig"
1025source "arch/mips/vr41xx/Kconfig"
1026source "arch/mips/cavium-octeon/Kconfig"
1027source "arch/mips/loongson32/Kconfig"
1028source "arch/mips/loongson64/Kconfig"
1029source "arch/mips/netlogic/Kconfig"
1030source "arch/mips/paravirt/Kconfig"
1031
1032endmenu
1033
1034config RWSEM_GENERIC_SPINLOCK
1035	bool
1036	default y
1037
1038config RWSEM_XCHGADD_ALGORITHM
1039	bool
1040
1041config GENERIC_HWEIGHT
1042	bool
1043	default y
1044
1045config GENERIC_CALIBRATE_DELAY
1046	bool
1047	default y
1048
1049config SCHED_OMIT_FRAME_POINTER
1050	bool
1051	default y
1052
1053#
1054# Select some configuration options automatically based on user selections.
1055#
1056config FW_ARC
1057	bool
1058
1059config ARCH_MAY_HAVE_PC_FDC
1060	bool
1061
1062config BOOT_RAW
1063	bool
1064
1065config CEVT_BCM1480
1066	bool
1067
1068config CEVT_DS1287
1069	bool
1070
1071config CEVT_GT641XX
1072	bool
1073
1074config CEVT_R4K
1075	bool
1076
1077config CEVT_SB1250
1078	bool
1079
1080config CEVT_TXX9
1081	bool
1082
1083config CSRC_BCM1480
1084	bool
1085
1086config CSRC_IOASIC
1087	bool
1088
1089config CSRC_R4K
1090	bool
1091
1092config CSRC_SB1250
1093	bool
1094
1095config MIPS_CLOCK_VSYSCALL
1096	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1097
1098config GPIO_TXX9
1099	select GPIOLIB
1100	bool
1101
1102config FW_CFE
1103	bool
1104
1105config ARCH_SUPPORTS_UPROBES
1106	bool
1107
1108config DMA_MAYBE_COHERENT
1109	select DMA_NONCOHERENT
1110	bool
1111
1112config DMA_PERDEV_COHERENT
1113	bool
1114	select DMA_MAYBE_COHERENT
1115
1116config DMA_NONCOHERENT
1117	bool
1118	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1119	select ARCH_HAS_SYNC_DMA_FOR_CPU
1120	select NEED_DMA_MAP_STATE
1121	select DMA_NONCOHERENT_MMAP
1122	select DMA_NONCOHERENT_CACHE_SYNC
1123	select DMA_NONCOHERENT_OPS
1124
1125config SYS_HAS_EARLY_PRINTK
1126	bool
1127
1128config SYS_SUPPORTS_HOTPLUG_CPU
1129	bool
1130
1131config MIPS_BONITO64
1132	bool
1133
1134config MIPS_MSC
1135	bool
1136
1137config MIPS_NILE4
1138	bool
1139
1140config SYNC_R4K
1141	bool
1142
1143config MIPS_MACHINE
1144	def_bool n
1145
1146config NO_IOPORT_MAP
1147	def_bool n
1148
1149config GENERIC_CSUM
1150	bool
1151
1152config GENERIC_ISA_DMA
1153	bool
1154	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1155	select ISA_DMA_API
1156
1157config GENERIC_ISA_DMA_SUPPORT_BROKEN
1158	bool
1159	select GENERIC_ISA_DMA
1160
1161config ISA_DMA_API
1162	bool
1163
1164config HOLES_IN_ZONE
1165	bool
1166
1167config SYS_SUPPORTS_RELOCATABLE
1168	bool
1169	help
1170	 Selected if the platform supports relocating the kernel.
1171	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1172	 to allow access to command line and entropy sources.
1173
1174config MIPS_CBPF_JIT
1175	def_bool y
1176	depends on BPF_JIT && HAVE_CBPF_JIT
1177
1178config MIPS_EBPF_JIT
1179	def_bool y
1180	depends on BPF_JIT && HAVE_EBPF_JIT
1181
1182
1183#
1184# Endianness selection.  Sufficiently obscure so many users don't know what to
1185# answer,so we try hard to limit the available choices.  Also the use of a
1186# choice statement should be more obvious to the user.
1187#
1188choice
1189	prompt "Endianness selection"
1190	help
1191	  Some MIPS machines can be configured for either little or big endian
1192	  byte order. These modes require different kernels and a different
1193	  Linux distribution.  In general there is one preferred byteorder for a
1194	  particular system but some systems are just as commonly used in the
1195	  one or the other endianness.
1196
1197config CPU_BIG_ENDIAN
1198	bool "Big endian"
1199	depends on SYS_SUPPORTS_BIG_ENDIAN
1200
1201config CPU_LITTLE_ENDIAN
1202	bool "Little endian"
1203	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1204
1205endchoice
1206
1207config EXPORT_UASM
1208	bool
1209
1210config SYS_SUPPORTS_APM_EMULATION
1211	bool
1212
1213config SYS_SUPPORTS_BIG_ENDIAN
1214	bool
1215
1216config SYS_SUPPORTS_LITTLE_ENDIAN
1217	bool
1218
1219config SYS_SUPPORTS_HUGETLBFS
1220	bool
1221	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1222	default y
1223
1224config MIPS_HUGE_TLB_SUPPORT
1225	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1226
1227config IRQ_CPU_RM7K
1228	bool
1229
1230config IRQ_MSP_SLP
1231	bool
1232
1233config IRQ_MSP_CIC
1234	bool
1235
1236config IRQ_TXX9
1237	bool
1238
1239config IRQ_GT641XX
1240	bool
1241
1242config PCI_GT64XXX_PCI0
1243	bool
1244
1245config NO_EXCEPT_FILL
1246	bool
1247
1248config SOC_EMMA2RH
1249	bool
1250	select CEVT_R4K
1251	select CSRC_R4K
1252	select DMA_NONCOHERENT
1253	select IRQ_MIPS_CPU
1254	select SWAP_IO_SPACE
1255	select SYS_HAS_CPU_R5500
1256	select SYS_SUPPORTS_32BIT_KERNEL
1257	select SYS_SUPPORTS_64BIT_KERNEL
1258	select SYS_SUPPORTS_BIG_ENDIAN
1259
1260config SOC_PNX833X
1261	bool
1262	select CEVT_R4K
1263	select CSRC_R4K
1264	select IRQ_MIPS_CPU
1265	select DMA_NONCOHERENT
1266	select SYS_HAS_CPU_MIPS32_R2
1267	select SYS_SUPPORTS_32BIT_KERNEL
1268	select SYS_SUPPORTS_LITTLE_ENDIAN
1269	select SYS_SUPPORTS_BIG_ENDIAN
1270	select SYS_SUPPORTS_MIPS16
1271	select CPU_MIPSR2_IRQ_VI
1272
1273config SOC_PNX8335
1274	bool
1275	select SOC_PNX833X
1276
1277config MIPS_SPRAM
1278	bool
1279
1280config SWAP_IO_SPACE
1281	bool
1282
1283config SGI_HAS_INDYDOG
1284	bool
1285
1286config SGI_HAS_HAL2
1287	bool
1288
1289config SGI_HAS_SEEQ
1290	bool
1291
1292config SGI_HAS_WD93
1293	bool
1294
1295config SGI_HAS_ZILOG
1296	bool
1297
1298config SGI_HAS_I8042
1299	bool
1300
1301config DEFAULT_SGI_PARTITION
1302	bool
1303
1304config FW_ARC32
1305	bool
1306
1307config FW_SNIPROM
1308	bool
1309
1310config BOOT_ELF32
1311	bool
1312
1313config MIPS_L1_CACHE_SHIFT_4
1314	bool
1315
1316config MIPS_L1_CACHE_SHIFT_5
1317	bool
1318
1319config MIPS_L1_CACHE_SHIFT_6
1320	bool
1321
1322config MIPS_L1_CACHE_SHIFT_7
1323	bool
1324
1325config MIPS_L1_CACHE_SHIFT
1326	int
1327	default "7" if MIPS_L1_CACHE_SHIFT_7
1328	default "6" if MIPS_L1_CACHE_SHIFT_6
1329	default "5" if MIPS_L1_CACHE_SHIFT_5
1330	default "4" if MIPS_L1_CACHE_SHIFT_4
1331	default "5"
1332
1333config HAVE_STD_PC_SERIAL_PORT
1334	bool
1335
1336config ARC_CONSOLE
1337	bool "ARC console support"
1338	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1339
1340config ARC_MEMORY
1341	bool
1342	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1343	default y
1344
1345config ARC_PROMLIB
1346	bool
1347	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1348	default y
1349
1350config FW_ARC64
1351	bool
1352
1353config BOOT_ELF64
1354	bool
1355
1356menu "CPU selection"
1357
1358choice
1359	prompt "CPU type"
1360	default CPU_R4X00
1361
1362config CPU_LOONGSON3
1363	bool "Loongson 3 CPU"
1364	depends on SYS_HAS_CPU_LOONGSON3
1365	select ARCH_HAS_PHYS_TO_DMA
1366	select CPU_SUPPORTS_64BIT_KERNEL
1367	select CPU_SUPPORTS_HIGHMEM
1368	select CPU_SUPPORTS_HUGEPAGES
1369	select WEAK_ORDERING
1370	select WEAK_REORDERING_BEYOND_LLSC
1371	select MIPS_PGD_C0_CONTEXT
1372	select MIPS_L1_CACHE_SHIFT_6
1373	select GPIOLIB
1374	select SWIOTLB
1375	help
1376		The Loongson 3 processor implements the MIPS64R2 instruction
1377		set with many extensions.
1378
1379config LOONGSON3_ENHANCEMENT
1380	bool "New Loongson 3 CPU Enhancements"
1381	default n
1382	select CPU_MIPSR2
1383	select CPU_HAS_PREFETCH
1384	depends on CPU_LOONGSON3
1385	help
1386	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1387	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1388	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1389	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1390	  Fast TLB refill support, etc.
1391
1392	  This option enable those enhancements which are not probed at run
1393	  time. If you want a generic kernel to run on all Loongson 3 machines,
1394	  please say 'N' here. If you want a high-performance kernel to run on
1395	  new Loongson 3 machines only, please say 'Y' here.
1396
1397config CPU_LOONGSON2E
1398	bool "Loongson 2E"
1399	depends on SYS_HAS_CPU_LOONGSON2E
1400	select CPU_LOONGSON2
1401	help
1402	  The Loongson 2E processor implements the MIPS III instruction set
1403	  with many extensions.
1404
1405	  It has an internal FPGA northbridge, which is compatible to
1406	  bonito64.
1407
1408config CPU_LOONGSON2F
1409	bool "Loongson 2F"
1410	depends on SYS_HAS_CPU_LOONGSON2F
1411	select CPU_LOONGSON2
1412	select GPIOLIB
1413	help
1414	  The Loongson 2F processor implements the MIPS III instruction set
1415	  with many extensions.
1416
1417	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1418	  have a similar programming interface with FPGA northbridge used in
1419	  Loongson2E.
1420
1421config CPU_LOONGSON1B
1422	bool "Loongson 1B"
1423	depends on SYS_HAS_CPU_LOONGSON1B
1424	select CPU_LOONGSON1
1425	select LEDS_GPIO_REGISTER
1426	help
1427	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1428	  Release 1 instruction set and part of the MIPS32 Release 2
1429	  instruction set.
1430
1431config CPU_LOONGSON1C
1432	bool "Loongson 1C"
1433	depends on SYS_HAS_CPU_LOONGSON1C
1434	select CPU_LOONGSON1
1435	select LEDS_GPIO_REGISTER
1436	help
1437	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1438	  Release 1 instruction set and part of the MIPS32 Release 2
1439	  instruction set.
1440
1441config CPU_MIPS32_R1
1442	bool "MIPS32 Release 1"
1443	depends on SYS_HAS_CPU_MIPS32_R1
1444	select CPU_HAS_PREFETCH
1445	select CPU_SUPPORTS_32BIT_KERNEL
1446	select CPU_SUPPORTS_HIGHMEM
1447	help
1448	  Choose this option to build a kernel for release 1 or later of the
1449	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1450	  MIPS processor are based on a MIPS32 processor.  If you know the
1451	  specific type of processor in your system, choose those that one
1452	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1453	  Release 2 of the MIPS32 architecture is available since several
1454	  years so chances are you even have a MIPS32 Release 2 processor
1455	  in which case you should choose CPU_MIPS32_R2 instead for better
1456	  performance.
1457
1458config CPU_MIPS32_R2
1459	bool "MIPS32 Release 2"
1460	depends on SYS_HAS_CPU_MIPS32_R2
1461	select CPU_HAS_PREFETCH
1462	select CPU_SUPPORTS_32BIT_KERNEL
1463	select CPU_SUPPORTS_HIGHMEM
1464	select CPU_SUPPORTS_MSA
1465	select HAVE_KVM
1466	help
1467	  Choose this option to build a kernel for release 2 or later of the
1468	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1469	  MIPS processor are based on a MIPS32 processor.  If you know the
1470	  specific type of processor in your system, choose those that one
1471	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1472
1473config CPU_MIPS32_R6
1474	bool "MIPS32 Release 6"
1475	depends on SYS_HAS_CPU_MIPS32_R6
1476	select CPU_HAS_PREFETCH
1477	select CPU_SUPPORTS_32BIT_KERNEL
1478	select CPU_SUPPORTS_HIGHMEM
1479	select CPU_SUPPORTS_MSA
1480	select GENERIC_CSUM
1481	select HAVE_KVM
1482	select MIPS_O32_FP64_SUPPORT
1483	help
1484	  Choose this option to build a kernel for release 6 or later of the
1485	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1486	  family, are based on a MIPS32r6 processor. If you own an older
1487	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1488
1489config CPU_MIPS64_R1
1490	bool "MIPS64 Release 1"
1491	depends on SYS_HAS_CPU_MIPS64_R1
1492	select CPU_HAS_PREFETCH
1493	select CPU_SUPPORTS_32BIT_KERNEL
1494	select CPU_SUPPORTS_64BIT_KERNEL
1495	select CPU_SUPPORTS_HIGHMEM
1496	select CPU_SUPPORTS_HUGEPAGES
1497	help
1498	  Choose this option to build a kernel for release 1 or later of the
1499	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1500	  MIPS processor are based on a MIPS64 processor.  If you know the
1501	  specific type of processor in your system, choose those that one
1502	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1503	  Release 2 of the MIPS64 architecture is available since several
1504	  years so chances are you even have a MIPS64 Release 2 processor
1505	  in which case you should choose CPU_MIPS64_R2 instead for better
1506	  performance.
1507
1508config CPU_MIPS64_R2
1509	bool "MIPS64 Release 2"
1510	depends on SYS_HAS_CPU_MIPS64_R2
1511	select CPU_HAS_PREFETCH
1512	select CPU_SUPPORTS_32BIT_KERNEL
1513	select CPU_SUPPORTS_64BIT_KERNEL
1514	select CPU_SUPPORTS_HIGHMEM
1515	select CPU_SUPPORTS_HUGEPAGES
1516	select CPU_SUPPORTS_MSA
1517	select HAVE_KVM
1518	help
1519	  Choose this option to build a kernel for release 2 or later of the
1520	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1521	  MIPS processor are based on a MIPS64 processor.  If you know the
1522	  specific type of processor in your system, choose those that one
1523	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1524
1525config CPU_MIPS64_R6
1526	bool "MIPS64 Release 6"
1527	depends on SYS_HAS_CPU_MIPS64_R6
1528	select CPU_HAS_PREFETCH
1529	select CPU_SUPPORTS_32BIT_KERNEL
1530	select CPU_SUPPORTS_64BIT_KERNEL
1531	select CPU_SUPPORTS_HIGHMEM
1532	select CPU_SUPPORTS_MSA
1533	select GENERIC_CSUM
1534	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1535	select HAVE_KVM
1536	help
1537	  Choose this option to build a kernel for release 6 or later of the
1538	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1539	  family, are based on a MIPS64r6 processor. If you own an older
1540	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1541
1542config CPU_R3000
1543	bool "R3000"
1544	depends on SYS_HAS_CPU_R3000
1545	select CPU_HAS_WB
1546	select CPU_SUPPORTS_32BIT_KERNEL
1547	select CPU_SUPPORTS_HIGHMEM
1548	help
1549	  Please make sure to pick the right CPU type. Linux/MIPS is not
1550	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1551	  *not* work on R4000 machines and vice versa.  However, since most
1552	  of the supported machines have an R4000 (or similar) CPU, R4x00
1553	  might be a safe bet.  If the resulting kernel does not work,
1554	  try to recompile with R3000.
1555
1556config CPU_TX39XX
1557	bool "R39XX"
1558	depends on SYS_HAS_CPU_TX39XX
1559	select CPU_SUPPORTS_32BIT_KERNEL
1560
1561config CPU_VR41XX
1562	bool "R41xx"
1563	depends on SYS_HAS_CPU_VR41XX
1564	select CPU_SUPPORTS_32BIT_KERNEL
1565	select CPU_SUPPORTS_64BIT_KERNEL
1566	help
1567	  The options selects support for the NEC VR4100 series of processors.
1568	  Only choose this option if you have one of these processors as a
1569	  kernel built with this option will not run on any other type of
1570	  processor or vice versa.
1571
1572config CPU_R4300
1573	bool "R4300"
1574	depends on SYS_HAS_CPU_R4300
1575	select CPU_SUPPORTS_32BIT_KERNEL
1576	select CPU_SUPPORTS_64BIT_KERNEL
1577	help
1578	  MIPS Technologies R4300-series processors.
1579
1580config CPU_R4X00
1581	bool "R4x00"
1582	depends on SYS_HAS_CPU_R4X00
1583	select CPU_SUPPORTS_32BIT_KERNEL
1584	select CPU_SUPPORTS_64BIT_KERNEL
1585	select CPU_SUPPORTS_HUGEPAGES
1586	help
1587	  MIPS Technologies R4000-series processors other than 4300, including
1588	  the R4000, R4400, R4600, and 4700.
1589
1590config CPU_TX49XX
1591	bool "R49XX"
1592	depends on SYS_HAS_CPU_TX49XX
1593	select CPU_HAS_PREFETCH
1594	select CPU_SUPPORTS_32BIT_KERNEL
1595	select CPU_SUPPORTS_64BIT_KERNEL
1596	select CPU_SUPPORTS_HUGEPAGES
1597
1598config CPU_R5000
1599	bool "R5000"
1600	depends on SYS_HAS_CPU_R5000
1601	select CPU_SUPPORTS_32BIT_KERNEL
1602	select CPU_SUPPORTS_64BIT_KERNEL
1603	select CPU_SUPPORTS_HUGEPAGES
1604	help
1605	  MIPS Technologies R5000-series processors other than the Nevada.
1606
1607config CPU_R5432
1608	bool "R5432"
1609	depends on SYS_HAS_CPU_R5432
1610	select CPU_SUPPORTS_32BIT_KERNEL
1611	select CPU_SUPPORTS_64BIT_KERNEL
1612	select CPU_SUPPORTS_HUGEPAGES
1613
1614config CPU_R5500
1615	bool "R5500"
1616	depends on SYS_HAS_CPU_R5500
1617	select CPU_SUPPORTS_32BIT_KERNEL
1618	select CPU_SUPPORTS_64BIT_KERNEL
1619	select CPU_SUPPORTS_HUGEPAGES
1620	help
1621	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1622	  instruction set.
1623
1624config CPU_NEVADA
1625	bool "RM52xx"
1626	depends on SYS_HAS_CPU_NEVADA
1627	select CPU_SUPPORTS_32BIT_KERNEL
1628	select CPU_SUPPORTS_64BIT_KERNEL
1629	select CPU_SUPPORTS_HUGEPAGES
1630	help
1631	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1632
1633config CPU_R8000
1634	bool "R8000"
1635	depends on SYS_HAS_CPU_R8000
1636	select CPU_HAS_PREFETCH
1637	select CPU_SUPPORTS_64BIT_KERNEL
1638	help
1639	  MIPS Technologies R8000 processors.  Note these processors are
1640	  uncommon and the support for them is incomplete.
1641
1642config CPU_R10000
1643	bool "R10000"
1644	depends on SYS_HAS_CPU_R10000
1645	select CPU_HAS_PREFETCH
1646	select CPU_SUPPORTS_32BIT_KERNEL
1647	select CPU_SUPPORTS_64BIT_KERNEL
1648	select CPU_SUPPORTS_HIGHMEM
1649	select CPU_SUPPORTS_HUGEPAGES
1650	help
1651	  MIPS Technologies R10000-series processors.
1652
1653config CPU_RM7000
1654	bool "RM7000"
1655	depends on SYS_HAS_CPU_RM7000
1656	select CPU_HAS_PREFETCH
1657	select CPU_SUPPORTS_32BIT_KERNEL
1658	select CPU_SUPPORTS_64BIT_KERNEL
1659	select CPU_SUPPORTS_HIGHMEM
1660	select CPU_SUPPORTS_HUGEPAGES
1661
1662config CPU_SB1
1663	bool "SB1"
1664	depends on SYS_HAS_CPU_SB1
1665	select CPU_SUPPORTS_32BIT_KERNEL
1666	select CPU_SUPPORTS_64BIT_KERNEL
1667	select CPU_SUPPORTS_HIGHMEM
1668	select CPU_SUPPORTS_HUGEPAGES
1669	select WEAK_ORDERING
1670
1671config CPU_CAVIUM_OCTEON
1672	bool "Cavium Octeon processor"
1673	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1674	select CPU_HAS_PREFETCH
1675	select CPU_SUPPORTS_64BIT_KERNEL
1676	select WEAK_ORDERING
1677	select CPU_SUPPORTS_HIGHMEM
1678	select CPU_SUPPORTS_HUGEPAGES
1679	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1680	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1681	select MIPS_L1_CACHE_SHIFT_7
1682	select HAVE_KVM
1683	help
1684	  The Cavium Octeon processor is a highly integrated chip containing
1685	  many ethernet hardware widgets for networking tasks. The processor
1686	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1687	  Full details can be found at http://www.caviumnetworks.com.
1688
1689config CPU_BMIPS
1690	bool "Broadcom BMIPS"
1691	depends on SYS_HAS_CPU_BMIPS
1692	select CPU_MIPS32
1693	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1694	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1695	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1696	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1697	select CPU_SUPPORTS_32BIT_KERNEL
1698	select DMA_NONCOHERENT
1699	select IRQ_MIPS_CPU
1700	select SWAP_IO_SPACE
1701	select WEAK_ORDERING
1702	select CPU_SUPPORTS_HIGHMEM
1703	select CPU_HAS_PREFETCH
1704	select CPU_SUPPORTS_CPUFREQ
1705	select MIPS_EXTERNAL_TIMER
1706	help
1707	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1708
1709config CPU_XLR
1710	bool "Netlogic XLR SoC"
1711	depends on SYS_HAS_CPU_XLR
1712	select CPU_SUPPORTS_32BIT_KERNEL
1713	select CPU_SUPPORTS_64BIT_KERNEL
1714	select CPU_SUPPORTS_HIGHMEM
1715	select CPU_SUPPORTS_HUGEPAGES
1716	select WEAK_ORDERING
1717	select WEAK_REORDERING_BEYOND_LLSC
1718	help
1719	  Netlogic Microsystems XLR/XLS processors.
1720
1721config CPU_XLP
1722	bool "Netlogic XLP SoC"
1723	depends on SYS_HAS_CPU_XLP
1724	select CPU_SUPPORTS_32BIT_KERNEL
1725	select CPU_SUPPORTS_64BIT_KERNEL
1726	select CPU_SUPPORTS_HIGHMEM
1727	select WEAK_ORDERING
1728	select WEAK_REORDERING_BEYOND_LLSC
1729	select CPU_HAS_PREFETCH
1730	select CPU_MIPSR2
1731	select CPU_SUPPORTS_HUGEPAGES
1732	select MIPS_ASID_BITS_VARIABLE
1733	help
1734	  Netlogic Microsystems XLP processors.
1735endchoice
1736
1737config CPU_MIPS32_3_5_FEATURES
1738	bool "MIPS32 Release 3.5 Features"
1739	depends on SYS_HAS_CPU_MIPS32_R3_5
1740	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1741	help
1742	  Choose this option to build a kernel for release 2 or later of the
1743	  MIPS32 architecture including features from the 3.5 release such as
1744	  support for Enhanced Virtual Addressing (EVA).
1745
1746config CPU_MIPS32_3_5_EVA
1747	bool "Enhanced Virtual Addressing (EVA)"
1748	depends on CPU_MIPS32_3_5_FEATURES
1749	select EVA
1750	default y
1751	help
1752	  Choose this option if you want to enable the Enhanced Virtual
1753	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1754	  One of its primary benefits is an increase in the maximum size
1755	  of lowmem (up to 3GB). If unsure, say 'N' here.
1756
1757config CPU_MIPS32_R5_FEATURES
1758	bool "MIPS32 Release 5 Features"
1759	depends on SYS_HAS_CPU_MIPS32_R5
1760	depends on CPU_MIPS32_R2
1761	help
1762	  Choose this option to build a kernel for release 2 or later of the
1763	  MIPS32 architecture including features from release 5 such as
1764	  support for Extended Physical Addressing (XPA).
1765
1766config CPU_MIPS32_R5_XPA
1767	bool "Extended Physical Addressing (XPA)"
1768	depends on CPU_MIPS32_R5_FEATURES
1769	depends on !EVA
1770	depends on !PAGE_SIZE_4KB
1771	depends on SYS_SUPPORTS_HIGHMEM
1772	select XPA
1773	select HIGHMEM
1774	select PHYS_ADDR_T_64BIT
1775	default n
1776	help
1777	  Choose this option if you want to enable the Extended Physical
1778	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1779	  benefit is to increase physical addressing equal to or greater
1780	  than 40 bits. Note that this has the side effect of turning on
1781	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1782	  If unsure, say 'N' here.
1783
1784if CPU_LOONGSON2F
1785config CPU_NOP_WORKAROUNDS
1786	bool
1787
1788config CPU_JUMP_WORKAROUNDS
1789	bool
1790
1791config CPU_LOONGSON2F_WORKAROUNDS
1792	bool "Loongson 2F Workarounds"
1793	default y
1794	select CPU_NOP_WORKAROUNDS
1795	select CPU_JUMP_WORKAROUNDS
1796	help
1797	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1798	  require workarounds.  Without workarounds the system may hang
1799	  unexpectedly.  For more information please refer to the gas
1800	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1801
1802	  Loongson 2F03 and later have fixed these issues and no workarounds
1803	  are needed.  The workarounds have no significant side effect on them
1804	  but may decrease the performance of the system so this option should
1805	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1806	  systems.
1807
1808	  If unsure, please say Y.
1809endif # CPU_LOONGSON2F
1810
1811config SYS_SUPPORTS_ZBOOT
1812	bool
1813	select HAVE_KERNEL_GZIP
1814	select HAVE_KERNEL_BZIP2
1815	select HAVE_KERNEL_LZ4
1816	select HAVE_KERNEL_LZMA
1817	select HAVE_KERNEL_LZO
1818	select HAVE_KERNEL_XZ
1819
1820config SYS_SUPPORTS_ZBOOT_UART16550
1821	bool
1822	select SYS_SUPPORTS_ZBOOT
1823
1824config SYS_SUPPORTS_ZBOOT_UART_PROM
1825	bool
1826	select SYS_SUPPORTS_ZBOOT
1827
1828config CPU_LOONGSON2
1829	bool
1830	select CPU_SUPPORTS_32BIT_KERNEL
1831	select CPU_SUPPORTS_64BIT_KERNEL
1832	select CPU_SUPPORTS_HIGHMEM
1833	select CPU_SUPPORTS_HUGEPAGES
1834	select ARCH_HAS_PHYS_TO_DMA
1835
1836config CPU_LOONGSON1
1837	bool
1838	select CPU_MIPS32
1839	select CPU_MIPSR1
1840	select CPU_HAS_PREFETCH
1841	select CPU_SUPPORTS_32BIT_KERNEL
1842	select CPU_SUPPORTS_HIGHMEM
1843	select CPU_SUPPORTS_CPUFREQ
1844
1845config CPU_BMIPS32_3300
1846	select SMP_UP if SMP
1847	bool
1848
1849config CPU_BMIPS4350
1850	bool
1851	select SYS_SUPPORTS_SMP
1852	select SYS_SUPPORTS_HOTPLUG_CPU
1853
1854config CPU_BMIPS4380
1855	bool
1856	select MIPS_L1_CACHE_SHIFT_6
1857	select SYS_SUPPORTS_SMP
1858	select SYS_SUPPORTS_HOTPLUG_CPU
1859	select CPU_HAS_RIXI
1860
1861config CPU_BMIPS5000
1862	bool
1863	select MIPS_CPU_SCACHE
1864	select MIPS_L1_CACHE_SHIFT_7
1865	select SYS_SUPPORTS_SMP
1866	select SYS_SUPPORTS_HOTPLUG_CPU
1867	select CPU_HAS_RIXI
1868
1869config SYS_HAS_CPU_LOONGSON3
1870	bool
1871	select CPU_SUPPORTS_CPUFREQ
1872	select CPU_HAS_RIXI
1873
1874config SYS_HAS_CPU_LOONGSON2E
1875	bool
1876
1877config SYS_HAS_CPU_LOONGSON2F
1878	bool
1879	select CPU_SUPPORTS_CPUFREQ
1880	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1881	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1882
1883config SYS_HAS_CPU_LOONGSON1B
1884	bool
1885
1886config SYS_HAS_CPU_LOONGSON1C
1887	bool
1888
1889config SYS_HAS_CPU_MIPS32_R1
1890	bool
1891
1892config SYS_HAS_CPU_MIPS32_R2
1893	bool
1894
1895config SYS_HAS_CPU_MIPS32_R3_5
1896	bool
1897
1898config SYS_HAS_CPU_MIPS32_R5
1899	bool
1900
1901config SYS_HAS_CPU_MIPS32_R6
1902	bool
1903
1904config SYS_HAS_CPU_MIPS64_R1
1905	bool
1906
1907config SYS_HAS_CPU_MIPS64_R2
1908	bool
1909
1910config SYS_HAS_CPU_MIPS64_R6
1911	bool
1912
1913config SYS_HAS_CPU_R3000
1914	bool
1915
1916config SYS_HAS_CPU_TX39XX
1917	bool
1918
1919config SYS_HAS_CPU_VR41XX
1920	bool
1921
1922config SYS_HAS_CPU_R4300
1923	bool
1924
1925config SYS_HAS_CPU_R4X00
1926	bool
1927
1928config SYS_HAS_CPU_TX49XX
1929	bool
1930
1931config SYS_HAS_CPU_R5000
1932	bool
1933
1934config SYS_HAS_CPU_R5432
1935	bool
1936
1937config SYS_HAS_CPU_R5500
1938	bool
1939
1940config SYS_HAS_CPU_NEVADA
1941	bool
1942
1943config SYS_HAS_CPU_R8000
1944	bool
1945
1946config SYS_HAS_CPU_R10000
1947	bool
1948
1949config SYS_HAS_CPU_RM7000
1950	bool
1951
1952config SYS_HAS_CPU_SB1
1953	bool
1954
1955config SYS_HAS_CPU_CAVIUM_OCTEON
1956	bool
1957
1958config SYS_HAS_CPU_BMIPS
1959	bool
1960
1961config SYS_HAS_CPU_BMIPS32_3300
1962	bool
1963	select SYS_HAS_CPU_BMIPS
1964
1965config SYS_HAS_CPU_BMIPS4350
1966	bool
1967	select SYS_HAS_CPU_BMIPS
1968
1969config SYS_HAS_CPU_BMIPS4380
1970	bool
1971	select SYS_HAS_CPU_BMIPS
1972
1973config SYS_HAS_CPU_BMIPS5000
1974	bool
1975	select SYS_HAS_CPU_BMIPS
1976
1977config SYS_HAS_CPU_XLR
1978	bool
1979
1980config SYS_HAS_CPU_XLP
1981	bool
1982
1983#
1984# CPU may reorder R->R, R->W, W->R, W->W
1985# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1986#
1987config WEAK_ORDERING
1988	bool
1989
1990#
1991# CPU may reorder reads and writes beyond LL/SC
1992# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1993#
1994config WEAK_REORDERING_BEYOND_LLSC
1995	bool
1996endmenu
1997
1998#
1999# These two indicate any level of the MIPS32 and MIPS64 architecture
2000#
2001config CPU_MIPS32
2002	bool
2003	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2004
2005config CPU_MIPS64
2006	bool
2007	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2008
2009#
2010# These two indicate the revision of the architecture, either Release 1 or Release 2
2011#
2012config CPU_MIPSR1
2013	bool
2014	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2015
2016config CPU_MIPSR2
2017	bool
2018	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2019	select CPU_HAS_RIXI
2020	select MIPS_SPRAM
2021
2022config CPU_MIPSR6
2023	bool
2024	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2025	select CPU_HAS_RIXI
2026	select HAVE_ARCH_BITREVERSE
2027	select MIPS_ASID_BITS_VARIABLE
2028	select MIPS_CRC_SUPPORT
2029	select MIPS_SPRAM
2030
2031config EVA
2032	bool
2033
2034config XPA
2035	bool
2036
2037config SYS_SUPPORTS_32BIT_KERNEL
2038	bool
2039config SYS_SUPPORTS_64BIT_KERNEL
2040	bool
2041config CPU_SUPPORTS_32BIT_KERNEL
2042	bool
2043config CPU_SUPPORTS_64BIT_KERNEL
2044	bool
2045config CPU_SUPPORTS_CPUFREQ
2046	bool
2047config CPU_SUPPORTS_ADDRWINCFG
2048	bool
2049config CPU_SUPPORTS_HUGEPAGES
2050	bool
2051config CPU_SUPPORTS_UNCACHED_ACCELERATED
2052	bool
2053config MIPS_PGD_C0_CONTEXT
2054	bool
2055	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2056
2057#
2058# Set to y for ptrace access to watch registers.
2059#
2060config HARDWARE_WATCHPOINTS
2061       bool
2062       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2063
2064menu "Kernel type"
2065
2066choice
2067	prompt "Kernel code model"
2068	help
2069	  You should only select this option if you have a workload that
2070	  actually benefits from 64-bit processing or if your machine has
2071	  large memory.  You will only be presented a single option in this
2072	  menu if your system does not support both 32-bit and 64-bit kernels.
2073
2074config 32BIT
2075	bool "32-bit kernel"
2076	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2077	select TRAD_SIGNALS
2078	help
2079	  Select this option if you want to build a 32-bit kernel.
2080
2081config 64BIT
2082	bool "64-bit kernel"
2083	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2084	help
2085	  Select this option if you want to build a 64-bit kernel.
2086
2087endchoice
2088
2089config KVM_GUEST
2090	bool "KVM Guest Kernel"
2091	depends on BROKEN_ON_SMP
2092	help
2093	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2094	  mode.
2095
2096config KVM_GUEST_TIMER_FREQ
2097	int "Count/Compare Timer Frequency (MHz)"
2098	depends on KVM_GUEST
2099	default 100
2100	help
2101	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2102	  emulation when determining guest CPU Frequency. Instead, the guest's
2103	  timer frequency is specified directly.
2104
2105config MIPS_VA_BITS_48
2106	bool "48 bits virtual memory"
2107	depends on 64BIT
2108	help
2109	  Support a maximum at least 48 bits of application virtual
2110	  memory.  Default is 40 bits or less, depending on the CPU.
2111	  For page sizes 16k and above, this option results in a small
2112	  memory overhead for page tables.  For 4k page size, a fourth
2113	  level of page tables is added which imposes both a memory
2114	  overhead as well as slower TLB fault handling.
2115
2116	  If unsure, say N.
2117
2118choice
2119	prompt "Kernel page size"
2120	default PAGE_SIZE_4KB
2121
2122config PAGE_SIZE_4KB
2123	bool "4kB"
2124	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2125	help
2126	 This option select the standard 4kB Linux page size.  On some
2127	 R3000-family processors this is the only available page size.  Using
2128	 4kB page size will minimize memory consumption and is therefore
2129	 recommended for low memory systems.
2130
2131config PAGE_SIZE_8KB
2132	bool "8kB"
2133	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2134	depends on !MIPS_VA_BITS_48
2135	help
2136	  Using 8kB page size will result in higher performance kernel at
2137	  the price of higher memory consumption.  This option is available
2138	  only on R8000 and cnMIPS processors.  Note that you will need a
2139	  suitable Linux distribution to support this.
2140
2141config PAGE_SIZE_16KB
2142	bool "16kB"
2143	depends on !CPU_R3000 && !CPU_TX39XX
2144	help
2145	  Using 16kB page size will result in higher performance kernel at
2146	  the price of higher memory consumption.  This option is available on
2147	  all non-R3000 family processors.  Note that you will need a suitable
2148	  Linux distribution to support this.
2149
2150config PAGE_SIZE_32KB
2151	bool "32kB"
2152	depends on CPU_CAVIUM_OCTEON
2153	depends on !MIPS_VA_BITS_48
2154	help
2155	  Using 32kB page size will result in higher performance kernel at
2156	  the price of higher memory consumption.  This option is available
2157	  only on cnMIPS cores.  Note that you will need a suitable Linux
2158	  distribution to support this.
2159
2160config PAGE_SIZE_64KB
2161	bool "64kB"
2162	depends on !CPU_R3000 && !CPU_TX39XX
2163	help
2164	  Using 64kB page size will result in higher performance kernel at
2165	  the price of higher memory consumption.  This option is available on
2166	  all non-R3000 family processor.  Not that at the time of this
2167	  writing this option is still high experimental.
2168
2169endchoice
2170
2171config FORCE_MAX_ZONEORDER
2172	int "Maximum zone order"
2173	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2174	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2175	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2176	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2177	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2178	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2179	range 11 64
2180	default "11"
2181	help
2182	  The kernel memory allocator divides physically contiguous memory
2183	  blocks into "zones", where each zone is a power of two number of
2184	  pages.  This option selects the largest power of two that the kernel
2185	  keeps in the memory allocator.  If you need to allocate very large
2186	  blocks of physically contiguous memory, then you may need to
2187	  increase this value.
2188
2189	  This config option is actually maximum order plus one. For example,
2190	  a value of 11 means that the largest free memory block is 2^10 pages.
2191
2192	  The page size is not necessarily 4KB.  Keep this in mind
2193	  when choosing a value for this option.
2194
2195config BOARD_SCACHE
2196	bool
2197
2198config IP22_CPU_SCACHE
2199	bool
2200	select BOARD_SCACHE
2201
2202#
2203# Support for a MIPS32 / MIPS64 style S-caches
2204#
2205config MIPS_CPU_SCACHE
2206	bool
2207	select BOARD_SCACHE
2208
2209config R5000_CPU_SCACHE
2210	bool
2211	select BOARD_SCACHE
2212
2213config RM7000_CPU_SCACHE
2214	bool
2215	select BOARD_SCACHE
2216
2217config SIBYTE_DMA_PAGEOPS
2218	bool "Use DMA to clear/copy pages"
2219	depends on CPU_SB1
2220	help
2221	  Instead of using the CPU to zero and copy pages, use a Data Mover
2222	  channel.  These DMA channels are otherwise unused by the standard
2223	  SiByte Linux port.  Seems to give a small performance benefit.
2224
2225config CPU_HAS_PREFETCH
2226	bool
2227
2228config CPU_GENERIC_DUMP_TLB
2229	bool
2230	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2231
2232config CPU_R4K_FPU
2233	bool
2234	default y if !(CPU_R3000 || CPU_TX39XX)
2235
2236config CPU_R4K_CACHE_TLB
2237	bool
2238	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2239
2240config MIPS_MT_SMP
2241	bool "MIPS MT SMP support (1 TC on each available VPE)"
2242	default y
2243	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2244	select CPU_MIPSR2_IRQ_VI
2245	select CPU_MIPSR2_IRQ_EI
2246	select SYNC_R4K
2247	select MIPS_MT
2248	select SMP
2249	select SMP_UP
2250	select SYS_SUPPORTS_SMP
2251	select SYS_SUPPORTS_SCHED_SMT
2252	select MIPS_PERF_SHARED_TC_COUNTERS
2253	help
2254	  This is a kernel model which is known as SMVP. This is supported
2255	  on cores with the MT ASE and uses the available VPEs to implement
2256	  virtual processors which supports SMP. This is equivalent to the
2257	  Intel Hyperthreading feature. For further information go to
2258	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2259
2260config MIPS_MT
2261	bool
2262
2263config SCHED_SMT
2264	bool "SMT (multithreading) scheduler support"
2265	depends on SYS_SUPPORTS_SCHED_SMT
2266	default n
2267	help
2268	  SMT scheduler support improves the CPU scheduler's decision making
2269	  when dealing with MIPS MT enabled cores at a cost of slightly
2270	  increased overhead in some places. If unsure say N here.
2271
2272config SYS_SUPPORTS_SCHED_SMT
2273	bool
2274
2275config SYS_SUPPORTS_MULTITHREADING
2276	bool
2277
2278config MIPS_MT_FPAFF
2279	bool "Dynamic FPU affinity for FP-intensive threads"
2280	default y
2281	depends on MIPS_MT_SMP
2282
2283config MIPSR2_TO_R6_EMULATOR
2284	bool "MIPS R2-to-R6 emulator"
2285	depends on CPU_MIPSR6
2286	default y
2287	help
2288	  Choose this option if you want to run non-R6 MIPS userland code.
2289	  Even if you say 'Y' here, the emulator will still be disabled by
2290	  default. You can enable it using the 'mipsr2emu' kernel option.
2291	  The only reason this is a build-time option is to save ~14K from the
2292	  final kernel image.
2293
2294config SYS_SUPPORTS_VPE_LOADER
2295	bool
2296	depends on SYS_SUPPORTS_MULTITHREADING
2297	help
2298	  Indicates that the platform supports the VPE loader, and provides
2299	  physical_memsize.
2300
2301config MIPS_VPE_LOADER
2302	bool "VPE loader support."
2303	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2304	select CPU_MIPSR2_IRQ_VI
2305	select CPU_MIPSR2_IRQ_EI
2306	select MIPS_MT
2307	help
2308	  Includes a loader for loading an elf relocatable object
2309	  onto another VPE and running it.
2310
2311config MIPS_VPE_LOADER_CMP
2312	bool
2313	default "y"
2314	depends on MIPS_VPE_LOADER && MIPS_CMP
2315
2316config MIPS_VPE_LOADER_MT
2317	bool
2318	default "y"
2319	depends on MIPS_VPE_LOADER && !MIPS_CMP
2320
2321config MIPS_VPE_LOADER_TOM
2322	bool "Load VPE program into memory hidden from linux"
2323	depends on MIPS_VPE_LOADER
2324	default y
2325	help
2326	  The loader can use memory that is present but has been hidden from
2327	  Linux using the kernel command line option "mem=xxMB". It's up to
2328	  you to ensure the amount you put in the option and the space your
2329	  program requires is less or equal to the amount physically present.
2330
2331config MIPS_VPE_APSP_API
2332	bool "Enable support for AP/SP API (RTLX)"
2333	depends on MIPS_VPE_LOADER
2334
2335config MIPS_VPE_APSP_API_CMP
2336	bool
2337	default "y"
2338	depends on MIPS_VPE_APSP_API && MIPS_CMP
2339
2340config MIPS_VPE_APSP_API_MT
2341	bool
2342	default "y"
2343	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2344
2345config MIPS_CMP
2346	bool "MIPS CMP framework support (DEPRECATED)"
2347	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2348	select SMP
2349	select SYNC_R4K
2350	select SYS_SUPPORTS_SMP
2351	select WEAK_ORDERING
2352	default n
2353	help
2354	  Select this if you are using a bootloader which implements the "CMP
2355	  framework" protocol (ie. YAMON) and want your kernel to make use of
2356	  its ability to start secondary CPUs.
2357
2358	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2359	  instead of this.
2360
2361config MIPS_CPS
2362	bool "MIPS Coherent Processing System support"
2363	depends on SYS_SUPPORTS_MIPS_CPS
2364	select MIPS_CM
2365	select MIPS_CPS_PM if HOTPLUG_CPU
2366	select SMP
2367	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2368	select SYS_SUPPORTS_HOTPLUG_CPU
2369	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2370	select SYS_SUPPORTS_SMP
2371	select WEAK_ORDERING
2372	help
2373	  Select this if you wish to run an SMP kernel across multiple cores
2374	  within a MIPS Coherent Processing System. When this option is
2375	  enabled the kernel will probe for other cores and boot them with
2376	  no external assistance. It is safe to enable this when hardware
2377	  support is unavailable.
2378
2379config MIPS_CPS_PM
2380	depends on MIPS_CPS
2381	bool
2382
2383config MIPS_CM
2384	bool
2385	select MIPS_CPC
2386
2387config MIPS_CPC
2388	bool
2389
2390config SB1_PASS_2_WORKAROUNDS
2391	bool
2392	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2393	default y
2394
2395config SB1_PASS_2_1_WORKAROUNDS
2396	bool
2397	depends on CPU_SB1 && CPU_SB1_PASS_2
2398	default y
2399
2400
2401choice
2402	prompt "SmartMIPS or microMIPS ASE support"
2403
2404config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2405	bool "None"
2406	help
2407	  Select this if you want neither microMIPS nor SmartMIPS support
2408
2409config CPU_HAS_SMARTMIPS
2410	depends on SYS_SUPPORTS_SMARTMIPS
2411	bool "SmartMIPS"
2412	help
2413	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2414	  increased security at both hardware and software level for
2415	  smartcards.  Enabling this option will allow proper use of the
2416	  SmartMIPS instructions by Linux applications.  However a kernel with
2417	  this option will not work on a MIPS core without SmartMIPS core.  If
2418	  you don't know you probably don't have SmartMIPS and should say N
2419	  here.
2420
2421config CPU_MICROMIPS
2422	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2423	bool "microMIPS"
2424	help
2425	  When this option is enabled the kernel will be built using the
2426	  microMIPS ISA
2427
2428endchoice
2429
2430config CPU_HAS_MSA
2431	bool "Support for the MIPS SIMD Architecture"
2432	depends on CPU_SUPPORTS_MSA
2433	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2434	help
2435	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2436	  and a set of SIMD instructions to operate on them. When this option
2437	  is enabled the kernel will support allocating & switching MSA
2438	  vector register contexts. If you know that your kernel will only be
2439	  running on CPUs which do not support MSA or that your userland will
2440	  not be making use of it then you may wish to say N here to reduce
2441	  the size & complexity of your kernel.
2442
2443	  If unsure, say Y.
2444
2445config CPU_HAS_WB
2446	bool
2447
2448config XKS01
2449	bool
2450
2451config CPU_HAS_RIXI
2452	bool
2453
2454#
2455# Vectored interrupt mode is an R2 feature
2456#
2457config CPU_MIPSR2_IRQ_VI
2458	bool
2459
2460#
2461# Extended interrupt mode is an R2 feature
2462#
2463config CPU_MIPSR2_IRQ_EI
2464	bool
2465
2466config CPU_HAS_SYNC
2467	bool
2468	depends on !CPU_R3000
2469	default y
2470
2471#
2472# CPU non-features
2473#
2474config CPU_DADDI_WORKAROUNDS
2475	bool
2476
2477config CPU_R4000_WORKAROUNDS
2478	bool
2479	select CPU_R4400_WORKAROUNDS
2480
2481config CPU_R4400_WORKAROUNDS
2482	bool
2483
2484config MIPS_ASID_SHIFT
2485	int
2486	default 6 if CPU_R3000 || CPU_TX39XX
2487	default 4 if CPU_R8000
2488	default 0
2489
2490config MIPS_ASID_BITS
2491	int
2492	default 0 if MIPS_ASID_BITS_VARIABLE
2493	default 6 if CPU_R3000 || CPU_TX39XX
2494	default 8
2495
2496config MIPS_ASID_BITS_VARIABLE
2497	bool
2498
2499config MIPS_CRC_SUPPORT
2500	bool
2501
2502#
2503# - Highmem only makes sense for the 32-bit kernel.
2504# - The current highmem code will only work properly on physically indexed
2505#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2506#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2507#   moment we protect the user and offer the highmem option only on machines
2508#   where it's known to be safe.  This will not offer highmem on a few systems
2509#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2510#   indexed CPUs but we're playing safe.
2511# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2512#   know they might have memory configurations that could make use of highmem
2513#   support.
2514#
2515config HIGHMEM
2516	bool "High Memory Support"
2517	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2518
2519config CPU_SUPPORTS_HIGHMEM
2520	bool
2521
2522config SYS_SUPPORTS_HIGHMEM
2523	bool
2524
2525config SYS_SUPPORTS_SMARTMIPS
2526	bool
2527
2528config SYS_SUPPORTS_MICROMIPS
2529	bool
2530
2531config SYS_SUPPORTS_MIPS16
2532	bool
2533	help
2534	  This option must be set if a kernel might be executed on a MIPS16-
2535	  enabled CPU even if MIPS16 is not actually being used.  In other
2536	  words, it makes the kernel MIPS16-tolerant.
2537
2538config CPU_SUPPORTS_MSA
2539	bool
2540
2541config ARCH_FLATMEM_ENABLE
2542	def_bool y
2543	depends on !NUMA && !CPU_LOONGSON2
2544
2545config ARCH_DISCONTIGMEM_ENABLE
2546	bool
2547	default y if SGI_IP27
2548	help
2549	  Say Y to support efficient handling of discontiguous physical memory,
2550	  for architectures which are either NUMA (Non-Uniform Memory Access)
2551	  or have huge holes in the physical address space for other reasons.
2552	  See <file:Documentation/vm/numa.rst> for more.
2553
2554config ARCH_SPARSEMEM_ENABLE
2555	bool
2556	select SPARSEMEM_STATIC
2557
2558config NUMA
2559	bool "NUMA Support"
2560	depends on SYS_SUPPORTS_NUMA
2561	help
2562	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2563	  Access).  This option improves performance on systems with more
2564	  than two nodes; on two node systems it is generally better to
2565	  leave it disabled; on single node systems disable this option
2566	  disabled.
2567
2568config SYS_SUPPORTS_NUMA
2569	bool
2570
2571config RELOCATABLE
2572	bool "Relocatable kernel"
2573	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2574	help
2575	  This builds a kernel image that retains relocation information
2576	  so it can be loaded someplace besides the default 1MB.
2577	  The relocations make the kernel binary about 15% larger,
2578	  but are discarded at runtime
2579
2580config RELOCATION_TABLE_SIZE
2581	hex "Relocation table size"
2582	depends on RELOCATABLE
2583	range 0x0 0x01000000
2584	default "0x00100000"
2585	---help---
2586	  A table of relocation data will be appended to the kernel binary
2587	  and parsed at boot to fix up the relocated kernel.
2588
2589	  This option allows the amount of space reserved for the table to be
2590	  adjusted, although the default of 1Mb should be ok in most cases.
2591
2592	  The build will fail and a valid size suggested if this is too small.
2593
2594	  If unsure, leave at the default value.
2595
2596config RANDOMIZE_BASE
2597	bool "Randomize the address of the kernel image"
2598	depends on RELOCATABLE
2599	---help---
2600	   Randomizes the physical and virtual address at which the
2601	   kernel image is loaded, as a security feature that
2602	   deters exploit attempts relying on knowledge of the location
2603	   of kernel internals.
2604
2605	   Entropy is generated using any coprocessor 0 registers available.
2606
2607	   The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2608
2609	   If unsure, say N.
2610
2611config RANDOMIZE_BASE_MAX_OFFSET
2612	hex "Maximum kASLR offset" if EXPERT
2613	depends on RANDOMIZE_BASE
2614	range 0x0 0x40000000 if EVA || 64BIT
2615	range 0x0 0x08000000
2616	default "0x01000000"
2617	---help---
2618	  When kASLR is active, this provides the maximum offset that will
2619	  be applied to the kernel image. It should be set according to the
2620	  amount of physical RAM available in the target system minus
2621	  PHYSICAL_START and must be a power of 2.
2622
2623	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2624	  EVA or 64-bit. The default is 16Mb.
2625
2626config NODES_SHIFT
2627	int
2628	default "6"
2629	depends on NEED_MULTIPLE_NODES
2630
2631config HW_PERF_EVENTS
2632	bool "Enable hardware performance counter support for perf events"
2633	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2634	default y
2635	help
2636	  Enable hardware performance counter support for perf events. If
2637	  disabled, perf events will use software events only.
2638
2639config SMP
2640	bool "Multi-Processing support"
2641	depends on SYS_SUPPORTS_SMP
2642	help
2643	  This enables support for systems with more than one CPU. If you have
2644	  a system with only one CPU, say N. If you have a system with more
2645	  than one CPU, say Y.
2646
2647	  If you say N here, the kernel will run on uni- and multiprocessor
2648	  machines, but will use only one CPU of a multiprocessor machine. If
2649	  you say Y here, the kernel will run on many, but not all,
2650	  uniprocessor machines. On a uniprocessor machine, the kernel
2651	  will run faster if you say N here.
2652
2653	  People using multiprocessor machines who say Y here should also say
2654	  Y to "Enhanced Real Time Clock Support", below.
2655
2656	  See also the SMP-HOWTO available at
2657	  <http://www.tldp.org/docs.html#howto>.
2658
2659	  If you don't know what to do here, say N.
2660
2661config HOTPLUG_CPU
2662	bool "Support for hot-pluggable CPUs"
2663	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2664	help
2665	  Say Y here to allow turning CPUs off and on. CPUs can be
2666	  controlled through /sys/devices/system/cpu.
2667	  (Note: power management support will enable this option
2668	    automatically on SMP systems. )
2669	  Say N if you want to disable CPU hotplug.
2670
2671config SMP_UP
2672	bool
2673
2674config SYS_SUPPORTS_MIPS_CMP
2675	bool
2676
2677config SYS_SUPPORTS_MIPS_CPS
2678	bool
2679
2680config SYS_SUPPORTS_SMP
2681	bool
2682
2683config NR_CPUS_DEFAULT_4
2684	bool
2685
2686config NR_CPUS_DEFAULT_8
2687	bool
2688
2689config NR_CPUS_DEFAULT_16
2690	bool
2691
2692config NR_CPUS_DEFAULT_32
2693	bool
2694
2695config NR_CPUS_DEFAULT_64
2696	bool
2697
2698config NR_CPUS
2699	int "Maximum number of CPUs (2-256)"
2700	range 2 256
2701	depends on SMP
2702	default "4" if NR_CPUS_DEFAULT_4
2703	default "8" if NR_CPUS_DEFAULT_8
2704	default "16" if NR_CPUS_DEFAULT_16
2705	default "32" if NR_CPUS_DEFAULT_32
2706	default "64" if NR_CPUS_DEFAULT_64
2707	help
2708	  This allows you to specify the maximum number of CPUs which this
2709	  kernel will support.  The maximum supported value is 32 for 32-bit
2710	  kernel and 64 for 64-bit kernels; the minimum value which makes
2711	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2712	  and 2 for all others.
2713
2714	  This is purely to save memory - each supported CPU adds
2715	  approximately eight kilobytes to the kernel image.  For best
2716	  performance should round up your number of processors to the next
2717	  power of two.
2718
2719config MIPS_PERF_SHARED_TC_COUNTERS
2720	bool
2721
2722config MIPS_NR_CPU_NR_MAP_1024
2723	bool
2724
2725config MIPS_NR_CPU_NR_MAP
2726	int
2727	depends on SMP
2728	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2729	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2730
2731#
2732# Timer Interrupt Frequency Configuration
2733#
2734
2735choice
2736	prompt "Timer frequency"
2737	default HZ_250
2738	help
2739	 Allows the configuration of the timer frequency.
2740
2741	config HZ_24
2742		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2743
2744	config HZ_48
2745		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2746
2747	config HZ_100
2748		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2749
2750	config HZ_128
2751		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2752
2753	config HZ_250
2754		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2755
2756	config HZ_256
2757		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2758
2759	config HZ_1000
2760		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2761
2762	config HZ_1024
2763		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2764
2765endchoice
2766
2767config SYS_SUPPORTS_24HZ
2768	bool
2769
2770config SYS_SUPPORTS_48HZ
2771	bool
2772
2773config SYS_SUPPORTS_100HZ
2774	bool
2775
2776config SYS_SUPPORTS_128HZ
2777	bool
2778
2779config SYS_SUPPORTS_250HZ
2780	bool
2781
2782config SYS_SUPPORTS_256HZ
2783	bool
2784
2785config SYS_SUPPORTS_1000HZ
2786	bool
2787
2788config SYS_SUPPORTS_1024HZ
2789	bool
2790
2791config SYS_SUPPORTS_ARBIT_HZ
2792	bool
2793	default y if !SYS_SUPPORTS_24HZ && \
2794		     !SYS_SUPPORTS_48HZ && \
2795		     !SYS_SUPPORTS_100HZ && \
2796		     !SYS_SUPPORTS_128HZ && \
2797		     !SYS_SUPPORTS_250HZ && \
2798		     !SYS_SUPPORTS_256HZ && \
2799		     !SYS_SUPPORTS_1000HZ && \
2800		     !SYS_SUPPORTS_1024HZ
2801
2802config HZ
2803	int
2804	default 24 if HZ_24
2805	default 48 if HZ_48
2806	default 100 if HZ_100
2807	default 128 if HZ_128
2808	default 250 if HZ_250
2809	default 256 if HZ_256
2810	default 1000 if HZ_1000
2811	default 1024 if HZ_1024
2812
2813config SCHED_HRTICK
2814	def_bool HIGH_RES_TIMERS
2815
2816config KEXEC
2817	bool "Kexec system call"
2818	select KEXEC_CORE
2819	help
2820	  kexec is a system call that implements the ability to shutdown your
2821	  current kernel, and to start another kernel.  It is like a reboot
2822	  but it is independent of the system firmware.   And like a reboot
2823	  you can start any kernel with it, not just Linux.
2824
2825	  The name comes from the similarity to the exec system call.
2826
2827	  It is an ongoing process to be certain the hardware in a machine
2828	  is properly shutdown, so do not be surprised if this code does not
2829	  initially work for you.  As of this writing the exact hardware
2830	  interface is strongly in flux, so no good recommendation can be
2831	  made.
2832
2833config CRASH_DUMP
2834	bool "Kernel crash dumps"
2835	help
2836	  Generate crash dump after being started by kexec.
2837	  This should be normally only set in special crash dump kernels
2838	  which are loaded in the main kernel with kexec-tools into
2839	  a specially reserved region and then later executed after
2840	  a crash by kdump/kexec. The crash dump kernel must be compiled
2841	  to a memory address not used by the main kernel or firmware using
2842	  PHYSICAL_START.
2843
2844config PHYSICAL_START
2845	hex "Physical address where the kernel is loaded"
2846	default "0xffffffff84000000"
2847	depends on CRASH_DUMP
2848	help
2849	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2850	  If you plan to use kernel for capturing the crash dump change
2851	  this value to start of the reserved region (the "X" value as
2852	  specified in the "crashkernel=YM@XM" command line boot parameter
2853	  passed to the panic-ed kernel).
2854
2855config SECCOMP
2856	bool "Enable seccomp to safely compute untrusted bytecode"
2857	depends on PROC_FS
2858	default y
2859	help
2860	  This kernel feature is useful for number crunching applications
2861	  that may need to compute untrusted bytecode during their
2862	  execution. By using pipes or other transports made available to
2863	  the process as file descriptors supporting the read/write
2864	  syscalls, it's possible to isolate those applications in
2865	  their own address space using seccomp. Once seccomp is
2866	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2867	  and the task is only allowed to execute a few safe syscalls
2868	  defined by each seccomp mode.
2869
2870	  If unsure, say Y. Only embedded should say N here.
2871
2872config MIPS_O32_FP64_SUPPORT
2873	bool "Support for O32 binaries using 64-bit FP"
2874	depends on 32BIT || MIPS32_O32
2875	help
2876	  When this is enabled, the kernel will support use of 64-bit floating
2877	  point registers with binaries using the O32 ABI along with the
2878	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2879	  32-bit MIPS systems this support is at the cost of increasing the
2880	  size and complexity of the compiled FPU emulator. Thus if you are
2881	  running a MIPS32 system and know that none of your userland binaries
2882	  will require 64-bit floating point, you may wish to reduce the size
2883	  of your kernel & potentially improve FP emulation performance by
2884	  saying N here.
2885
2886	  Although binutils currently supports use of this flag the details
2887	  concerning its effect upon the O32 ABI in userland are still being
2888	  worked on. In order to avoid userland becoming dependant upon current
2889	  behaviour before the details have been finalised, this option should
2890	  be considered experimental and only enabled by those working upon
2891	  said details.
2892
2893	  If unsure, say N.
2894
2895config USE_OF
2896	bool
2897	select OF
2898	select OF_EARLY_FLATTREE
2899	select IRQ_DOMAIN
2900
2901config BUILTIN_DTB
2902	bool
2903
2904choice
2905	prompt "Kernel appended dtb support" if USE_OF
2906	default MIPS_NO_APPENDED_DTB
2907
2908	config MIPS_NO_APPENDED_DTB
2909		bool "None"
2910		help
2911		  Do not enable appended dtb support.
2912
2913	config MIPS_ELF_APPENDED_DTB
2914		bool "vmlinux"
2915		help
2916		  With this option, the boot code will look for a device tree binary
2917		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2918		  it is empty and the DTB can be appended using binutils command
2919		  objcopy:
2920
2921		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2922
2923		  This is meant as a backward compatiblity convenience for those
2924		  systems with a bootloader that can't be upgraded to accommodate
2925		  the documented boot protocol using a device tree.
2926
2927	config MIPS_RAW_APPENDED_DTB
2928		bool "vmlinux.bin or vmlinuz.bin"
2929		help
2930		  With this option, the boot code will look for a device tree binary
2931		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2932		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2933
2934		  This is meant as a backward compatibility convenience for those
2935		  systems with a bootloader that can't be upgraded to accommodate
2936		  the documented boot protocol using a device tree.
2937
2938		  Beware that there is very little in terms of protection against
2939		  this option being confused by leftover garbage in memory that might
2940		  look like a DTB header after a reboot if no actual DTB is appended
2941		  to vmlinux.bin.  Do not leave this option active in a production kernel
2942		  if you don't intend to always append a DTB.
2943endchoice
2944
2945choice
2946	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2947	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2948					 !MIPS_MALTA && \
2949					 !CAVIUM_OCTEON_SOC
2950	default MIPS_CMDLINE_FROM_BOOTLOADER
2951
2952	config MIPS_CMDLINE_FROM_DTB
2953		depends on USE_OF
2954		bool "Dtb kernel arguments if available"
2955
2956	config MIPS_CMDLINE_DTB_EXTEND
2957		depends on USE_OF
2958		bool "Extend dtb kernel arguments with bootloader arguments"
2959
2960	config MIPS_CMDLINE_FROM_BOOTLOADER
2961		bool "Bootloader kernel arguments if available"
2962
2963	config MIPS_CMDLINE_BUILTIN_EXTEND
2964		depends on CMDLINE_BOOL
2965		bool "Extend builtin kernel arguments with bootloader arguments"
2966endchoice
2967
2968endmenu
2969
2970config LOCKDEP_SUPPORT
2971	bool
2972	default y
2973
2974config STACKTRACE_SUPPORT
2975	bool
2976	default y
2977
2978config HAVE_LATENCYTOP_SUPPORT
2979	bool
2980	default y
2981
2982config PGTABLE_LEVELS
2983	int
2984	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
2985	default 3 if 64BIT && !PAGE_SIZE_64KB
2986	default 2
2987
2988config MIPS_AUTO_PFN_OFFSET
2989	bool
2990
2991menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2992
2993config HW_HAS_EISA
2994	bool
2995config HW_HAS_PCI
2996	bool
2997
2998config PCI
2999	bool "Support for PCI controller"
3000	depends on HW_HAS_PCI
3001	select PCI_DOMAINS
3002	help
3003	  Find out whether you have a PCI motherboard. PCI is the name of a
3004	  bus system, i.e. the way the CPU talks to the other stuff inside
3005	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3006	  say Y, otherwise N.
3007
3008config HT_PCI
3009	bool "Support for HT-linked PCI"
3010	default y
3011	depends on CPU_LOONGSON3
3012	select PCI
3013	select PCI_DOMAINS
3014	help
3015	  Loongson family machines use Hyper-Transport bus for inter-core
3016	  connection and device connection. The PCI bus is a subordinate
3017	  linked at HT. Choose Y for Loongson-3 based machines.
3018
3019config PCI_DOMAINS
3020	bool
3021
3022config PCI_DOMAINS_GENERIC
3023	bool
3024
3025config PCI_DRIVERS_GENERIC
3026	select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3027	bool
3028
3029config PCI_DRIVERS_LEGACY
3030	def_bool !PCI_DRIVERS_GENERIC
3031	select NO_GENERIC_PCI_IOPORT_MAP
3032
3033source "drivers/pci/Kconfig"
3034
3035#
3036# ISA support is now enabled via select.  Too many systems still have the one
3037# or other ISA chip on the board that users don't know about so don't expect
3038# users to choose the right thing ...
3039#
3040config ISA
3041	bool
3042
3043config EISA
3044	bool "EISA support"
3045	depends on HW_HAS_EISA
3046	select ISA
3047	select GENERIC_ISA_DMA
3048	---help---
3049	  The Extended Industry Standard Architecture (EISA) bus was
3050	  developed as an open alternative to the IBM MicroChannel bus.
3051
3052	  The EISA bus provided some of the features of the IBM MicroChannel
3053	  bus while maintaining backward compatibility with cards made for
3054	  the older ISA bus.  The EISA bus saw limited use between 1988 and
3055	  1995 when it was made obsolete by the PCI bus.
3056
3057	  Say Y here if you are building a kernel for an EISA-based machine.
3058
3059	  Otherwise, say N.
3060
3061source "drivers/eisa/Kconfig"
3062
3063config TC
3064	bool "TURBOchannel support"
3065	depends on MACH_DECSTATION
3066	help
3067	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3068	  processors.  TURBOchannel programming specifications are available
3069	  at:
3070	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3071	  and:
3072	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3073	  Linux driver support status is documented at:
3074	  <http://www.linux-mips.org/wiki/DECstation>
3075
3076config MMU
3077	bool
3078	default y
3079
3080config ARCH_MMAP_RND_BITS_MIN
3081	default 12 if 64BIT
3082	default 8
3083
3084config ARCH_MMAP_RND_BITS_MAX
3085	default 18 if 64BIT
3086	default 15
3087
3088config ARCH_MMAP_RND_COMPAT_BITS_MIN
3089       default 8
3090
3091config ARCH_MMAP_RND_COMPAT_BITS_MAX
3092       default 15
3093
3094config I8253
3095	bool
3096	select CLKSRC_I8253
3097	select CLKEVT_I8253
3098	select MIPS_EXTERNAL_TIMER
3099
3100config ZONE_DMA
3101	bool
3102
3103config ZONE_DMA32
3104	bool
3105
3106source "drivers/pcmcia/Kconfig"
3107
3108config HAS_RAPIDIO
3109	bool
3110	default n
3111
3112config RAPIDIO
3113	tristate "RapidIO support"
3114	depends on HAS_RAPIDIO || PCI
3115	help
3116	  If you say Y here, the kernel will include drivers and
3117	  infrastructure code to support RapidIO interconnect devices.
3118
3119source "drivers/rapidio/Kconfig"
3120
3121endmenu
3122
3123config TRAD_SIGNALS
3124	bool
3125
3126config MIPS32_COMPAT
3127	bool
3128
3129config COMPAT
3130	bool
3131
3132config SYSVIPC_COMPAT
3133	bool
3134
3135config MIPS32_O32
3136	bool "Kernel support for o32 binaries"
3137	depends on 64BIT
3138	select ARCH_WANT_OLD_COMPAT_IPC
3139	select COMPAT
3140	select MIPS32_COMPAT
3141	select SYSVIPC_COMPAT if SYSVIPC
3142	help
3143	  Select this option if you want to run o32 binaries.  These are pure
3144	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3145	  existing binaries are in this format.
3146
3147	  If unsure, say Y.
3148
3149config MIPS32_N32
3150	bool "Kernel support for n32 binaries"
3151	depends on 64BIT
3152	select COMPAT
3153	select MIPS32_COMPAT
3154	select SYSVIPC_COMPAT if SYSVIPC
3155	help
3156	  Select this option if you want to run n32 binaries.  These are
3157	  64-bit binaries using 32-bit quantities for addressing and certain
3158	  data that would normally be 64-bit.  They are used in special
3159	  cases.
3160
3161	  If unsure, say N.
3162
3163config BINFMT_ELF32
3164	bool
3165	default y if MIPS32_O32 || MIPS32_N32
3166	select ELFCORE
3167
3168menu "Power management options"
3169
3170config ARCH_HIBERNATION_POSSIBLE
3171	def_bool y
3172	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3173
3174config ARCH_SUSPEND_POSSIBLE
3175	def_bool y
3176	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3177
3178source "kernel/power/Kconfig"
3179
3180endmenu
3181
3182config MIPS_EXTERNAL_TIMER
3183	bool
3184
3185menu "CPU Power Management"
3186
3187if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3188source "drivers/cpufreq/Kconfig"
3189endif
3190
3191source "drivers/cpuidle/Kconfig"
3192
3193endmenu
3194
3195source "drivers/firmware/Kconfig"
3196
3197source "arch/mips/kvm/Kconfig"
3198