xref: /openbmc/linux/arch/mips/Kconfig (revision 6d99a79c)
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_IOMAP
25	select GENERIC_IRQ_PROBE
26	select GENERIC_IRQ_SHOW
27	select GENERIC_LIB_ASHLDI3
28	select GENERIC_LIB_ASHRDI3
29	select GENERIC_LIB_CMPDI2
30	select GENERIC_LIB_LSHRDI3
31	select GENERIC_LIB_UCMPDI2
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_NODE_MAP
64	select HAVE_MOD_ARCH_SPECIFIC
65	select HAVE_NMI
66	select HAVE_OPROFILE
67	select HAVE_PERF_EVENTS
68	select HAVE_REGS_AND_STACK_ACCESS_API
69	select HAVE_RSEQ
70	select HAVE_STACKPROTECTOR
71	select HAVE_SYSCALL_TRACEPOINTS
72	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
73	select IRQ_FORCED_THREADING
74	select MODULES_USE_ELF_RELA if MODULES && 64BIT
75	select MODULES_USE_ELF_REL if MODULES
76	select PERF_USE_VMALLOC
77	select RTC_LIB
78	select SYSCTL_EXCEPTION_TRACE
79	select VIRT_TO_BUS
80
81menu "Machine selection"
82
83choice
84	prompt "System type"
85	default MIPS_GENERIC
86
87config MIPS_GENERIC
88	bool "Generic board-agnostic MIPS kernel"
89	select BOOT_RAW
90	select BUILTIN_DTB
91	select CEVT_R4K
92	select CLKSRC_MIPS_GIC
93	select COMMON_CLK
94	select CPU_MIPSR2_IRQ_VI
95	select CPU_MIPSR2_IRQ_EI
96	select CSRC_R4K
97	select DMA_PERDEV_COHERENT
98	select HW_HAS_PCI
99	select IRQ_MIPS_CPU
100	select LIBFDT
101	select MIPS_AUTO_PFN_OFFSET
102	select MIPS_CPU_SCACHE
103	select MIPS_GIC
104	select MIPS_L1_CACHE_SHIFT_7
105	select NO_EXCEPT_FILL
106	select PCI_DRIVERS_GENERIC
107	select PINCTRL
108	select SMP_UP if SMP
109	select SWAP_IO_SPACE
110	select SYS_HAS_CPU_MIPS32_R1
111	select SYS_HAS_CPU_MIPS32_R2
112	select SYS_HAS_CPU_MIPS32_R6
113	select SYS_HAS_CPU_MIPS64_R1
114	select SYS_HAS_CPU_MIPS64_R2
115	select SYS_HAS_CPU_MIPS64_R6
116	select SYS_SUPPORTS_32BIT_KERNEL
117	select SYS_SUPPORTS_64BIT_KERNEL
118	select SYS_SUPPORTS_BIG_ENDIAN
119	select SYS_SUPPORTS_HIGHMEM
120	select SYS_SUPPORTS_LITTLE_ENDIAN
121	select SYS_SUPPORTS_MICROMIPS
122	select SYS_SUPPORTS_MIPS_CPS
123	select SYS_SUPPORTS_MIPS16
124	select SYS_SUPPORTS_MULTITHREADING
125	select SYS_SUPPORTS_RELOCATABLE
126	select SYS_SUPPORTS_SMARTMIPS
127	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
128	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
129	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
130	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
131	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
132	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
133	select USE_OF
134	select UHI_BOOT
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 ARCH_HAS_DMA_COHERENCE_H
1110	select DMA_NONCOHERENT
1111	bool
1112
1113config DMA_PERDEV_COHERENT
1114	bool
1115	select DMA_NONCOHERENT
1116
1117config DMA_NONCOHERENT
1118	bool
1119	select ARCH_HAS_DMA_MMAP_PGPROT
1120	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1121	select ARCH_HAS_SYNC_DMA_FOR_CPU
1122	select NEED_DMA_MAP_STATE
1123	select ARCH_HAS_DMA_COHERENT_TO_PFN
1124	select DMA_NONCOHERENT_CACHE_SYNC
1125
1126config SYS_HAS_EARLY_PRINTK
1127	bool
1128
1129config SYS_SUPPORTS_HOTPLUG_CPU
1130	bool
1131
1132config MIPS_BONITO64
1133	bool
1134
1135config MIPS_MSC
1136	bool
1137
1138config MIPS_NILE4
1139	bool
1140
1141config SYNC_R4K
1142	bool
1143
1144config MIPS_MACHINE
1145	def_bool n
1146
1147config NO_IOPORT_MAP
1148	def_bool n
1149
1150config GENERIC_CSUM
1151	bool
1152	default y if !CPU_HAS_LOAD_STORE_LR
1153
1154config GENERIC_ISA_DMA
1155	bool
1156	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1157	select ISA_DMA_API
1158
1159config GENERIC_ISA_DMA_SUPPORT_BROKEN
1160	bool
1161	select GENERIC_ISA_DMA
1162
1163config ISA_DMA_API
1164	bool
1165
1166config HOLES_IN_ZONE
1167	bool
1168
1169config SYS_SUPPORTS_RELOCATABLE
1170	bool
1171	help
1172	 Selected if the platform supports relocating the kernel.
1173	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1174	 to allow access to command line and entropy sources.
1175
1176config MIPS_CBPF_JIT
1177	def_bool y
1178	depends on BPF_JIT && HAVE_CBPF_JIT
1179
1180config MIPS_EBPF_JIT
1181	def_bool y
1182	depends on BPF_JIT && HAVE_EBPF_JIT
1183
1184
1185#
1186# Endianness selection.  Sufficiently obscure so many users don't know what to
1187# answer,so we try hard to limit the available choices.  Also the use of a
1188# choice statement should be more obvious to the user.
1189#
1190choice
1191	prompt "Endianness selection"
1192	help
1193	  Some MIPS machines can be configured for either little or big endian
1194	  byte order. These modes require different kernels and a different
1195	  Linux distribution.  In general there is one preferred byteorder for a
1196	  particular system but some systems are just as commonly used in the
1197	  one or the other endianness.
1198
1199config CPU_BIG_ENDIAN
1200	bool "Big endian"
1201	depends on SYS_SUPPORTS_BIG_ENDIAN
1202
1203config CPU_LITTLE_ENDIAN
1204	bool "Little endian"
1205	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1206
1207endchoice
1208
1209config EXPORT_UASM
1210	bool
1211
1212config SYS_SUPPORTS_APM_EMULATION
1213	bool
1214
1215config SYS_SUPPORTS_BIG_ENDIAN
1216	bool
1217
1218config SYS_SUPPORTS_LITTLE_ENDIAN
1219	bool
1220
1221config SYS_SUPPORTS_HUGETLBFS
1222	bool
1223	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1224	default y
1225
1226config MIPS_HUGE_TLB_SUPPORT
1227	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1228
1229config IRQ_CPU_RM7K
1230	bool
1231
1232config IRQ_MSP_SLP
1233	bool
1234
1235config IRQ_MSP_CIC
1236	bool
1237
1238config IRQ_TXX9
1239	bool
1240
1241config IRQ_GT641XX
1242	bool
1243
1244config PCI_GT64XXX_PCI0
1245	bool
1246
1247config NO_EXCEPT_FILL
1248	bool
1249
1250config SOC_EMMA2RH
1251	bool
1252	select CEVT_R4K
1253	select CSRC_R4K
1254	select DMA_NONCOHERENT
1255	select IRQ_MIPS_CPU
1256	select SWAP_IO_SPACE
1257	select SYS_HAS_CPU_R5500
1258	select SYS_SUPPORTS_32BIT_KERNEL
1259	select SYS_SUPPORTS_64BIT_KERNEL
1260	select SYS_SUPPORTS_BIG_ENDIAN
1261
1262config SOC_PNX833X
1263	bool
1264	select CEVT_R4K
1265	select CSRC_R4K
1266	select IRQ_MIPS_CPU
1267	select DMA_NONCOHERENT
1268	select SYS_HAS_CPU_MIPS32_R2
1269	select SYS_SUPPORTS_32BIT_KERNEL
1270	select SYS_SUPPORTS_LITTLE_ENDIAN
1271	select SYS_SUPPORTS_BIG_ENDIAN
1272	select SYS_SUPPORTS_MIPS16
1273	select CPU_MIPSR2_IRQ_VI
1274
1275config SOC_PNX8335
1276	bool
1277	select SOC_PNX833X
1278
1279config MIPS_SPRAM
1280	bool
1281
1282config SWAP_IO_SPACE
1283	bool
1284
1285config SGI_HAS_INDYDOG
1286	bool
1287
1288config SGI_HAS_HAL2
1289	bool
1290
1291config SGI_HAS_SEEQ
1292	bool
1293
1294config SGI_HAS_WD93
1295	bool
1296
1297config SGI_HAS_ZILOG
1298	bool
1299
1300config SGI_HAS_I8042
1301	bool
1302
1303config DEFAULT_SGI_PARTITION
1304	bool
1305
1306config FW_ARC32
1307	bool
1308
1309config FW_SNIPROM
1310	bool
1311
1312config BOOT_ELF32
1313	bool
1314
1315config MIPS_L1_CACHE_SHIFT_4
1316	bool
1317
1318config MIPS_L1_CACHE_SHIFT_5
1319	bool
1320
1321config MIPS_L1_CACHE_SHIFT_6
1322	bool
1323
1324config MIPS_L1_CACHE_SHIFT_7
1325	bool
1326
1327config MIPS_L1_CACHE_SHIFT
1328	int
1329	default "7" if MIPS_L1_CACHE_SHIFT_7
1330	default "6" if MIPS_L1_CACHE_SHIFT_6
1331	default "5" if MIPS_L1_CACHE_SHIFT_5
1332	default "4" if MIPS_L1_CACHE_SHIFT_4
1333	default "5"
1334
1335config HAVE_STD_PC_SERIAL_PORT
1336	bool
1337
1338config ARC_CONSOLE
1339	bool "ARC console support"
1340	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1341
1342config ARC_MEMORY
1343	bool
1344	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1345	default y
1346
1347config ARC_PROMLIB
1348	bool
1349	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1350	default y
1351
1352config FW_ARC64
1353	bool
1354
1355config BOOT_ELF64
1356	bool
1357
1358menu "CPU selection"
1359
1360choice
1361	prompt "CPU type"
1362	default CPU_R4X00
1363
1364config CPU_LOONGSON3
1365	bool "Loongson 3 CPU"
1366	depends on SYS_HAS_CPU_LOONGSON3
1367	select ARCH_HAS_PHYS_TO_DMA
1368	select CPU_SUPPORTS_64BIT_KERNEL
1369	select CPU_SUPPORTS_HIGHMEM
1370	select CPU_SUPPORTS_HUGEPAGES
1371	select CPU_HAS_LOAD_STORE_LR
1372	select WEAK_ORDERING
1373	select WEAK_REORDERING_BEYOND_LLSC
1374	select MIPS_PGD_C0_CONTEXT
1375	select MIPS_L1_CACHE_SHIFT_6
1376	select GPIOLIB
1377	select SWIOTLB
1378	help
1379		The Loongson 3 processor implements the MIPS64R2 instruction
1380		set with many extensions.
1381
1382config LOONGSON3_ENHANCEMENT
1383	bool "New Loongson 3 CPU Enhancements"
1384	default n
1385	select CPU_MIPSR2
1386	select CPU_HAS_PREFETCH
1387	depends on CPU_LOONGSON3
1388	help
1389	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1390	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1391	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1392	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1393	  Fast TLB refill support, etc.
1394
1395	  This option enable those enhancements which are not probed at run
1396	  time. If you want a generic kernel to run on all Loongson 3 machines,
1397	  please say 'N' here. If you want a high-performance kernel to run on
1398	  new Loongson 3 machines only, please say 'Y' here.
1399
1400config CPU_LOONGSON2E
1401	bool "Loongson 2E"
1402	depends on SYS_HAS_CPU_LOONGSON2E
1403	select CPU_LOONGSON2
1404	help
1405	  The Loongson 2E processor implements the MIPS III instruction set
1406	  with many extensions.
1407
1408	  It has an internal FPGA northbridge, which is compatible to
1409	  bonito64.
1410
1411config CPU_LOONGSON2F
1412	bool "Loongson 2F"
1413	depends on SYS_HAS_CPU_LOONGSON2F
1414	select CPU_LOONGSON2
1415	select GPIOLIB
1416	help
1417	  The Loongson 2F processor implements the MIPS III instruction set
1418	  with many extensions.
1419
1420	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1421	  have a similar programming interface with FPGA northbridge used in
1422	  Loongson2E.
1423
1424config CPU_LOONGSON1B
1425	bool "Loongson 1B"
1426	depends on SYS_HAS_CPU_LOONGSON1B
1427	select CPU_LOONGSON1
1428	select LEDS_GPIO_REGISTER
1429	help
1430	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1431	  Release 1 instruction set and part of the MIPS32 Release 2
1432	  instruction set.
1433
1434config CPU_LOONGSON1C
1435	bool "Loongson 1C"
1436	depends on SYS_HAS_CPU_LOONGSON1C
1437	select CPU_LOONGSON1
1438	select LEDS_GPIO_REGISTER
1439	help
1440	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1441	  Release 1 instruction set and part of the MIPS32 Release 2
1442	  instruction set.
1443
1444config CPU_MIPS32_R1
1445	bool "MIPS32 Release 1"
1446	depends on SYS_HAS_CPU_MIPS32_R1
1447	select CPU_HAS_PREFETCH
1448	select CPU_HAS_LOAD_STORE_LR
1449	select CPU_SUPPORTS_32BIT_KERNEL
1450	select CPU_SUPPORTS_HIGHMEM
1451	help
1452	  Choose this option to build a kernel for release 1 or later of the
1453	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1454	  MIPS processor are based on a MIPS32 processor.  If you know the
1455	  specific type of processor in your system, choose those that one
1456	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1457	  Release 2 of the MIPS32 architecture is available since several
1458	  years so chances are you even have a MIPS32 Release 2 processor
1459	  in which case you should choose CPU_MIPS32_R2 instead for better
1460	  performance.
1461
1462config CPU_MIPS32_R2
1463	bool "MIPS32 Release 2"
1464	depends on SYS_HAS_CPU_MIPS32_R2
1465	select CPU_HAS_PREFETCH
1466	select CPU_HAS_LOAD_STORE_LR
1467	select CPU_SUPPORTS_32BIT_KERNEL
1468	select CPU_SUPPORTS_HIGHMEM
1469	select CPU_SUPPORTS_MSA
1470	select HAVE_KVM
1471	help
1472	  Choose this option to build a kernel for release 2 or later of the
1473	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1474	  MIPS processor are based on a MIPS32 processor.  If you know the
1475	  specific type of processor in your system, choose those that one
1476	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1477
1478config CPU_MIPS32_R6
1479	bool "MIPS32 Release 6"
1480	depends on SYS_HAS_CPU_MIPS32_R6
1481	select CPU_HAS_PREFETCH
1482	select CPU_SUPPORTS_32BIT_KERNEL
1483	select CPU_SUPPORTS_HIGHMEM
1484	select CPU_SUPPORTS_MSA
1485	select HAVE_KVM
1486	select MIPS_O32_FP64_SUPPORT
1487	help
1488	  Choose this option to build a kernel for release 6 or later of the
1489	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1490	  family, are based on a MIPS32r6 processor. If you own an older
1491	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1492
1493config CPU_MIPS64_R1
1494	bool "MIPS64 Release 1"
1495	depends on SYS_HAS_CPU_MIPS64_R1
1496	select CPU_HAS_PREFETCH
1497	select CPU_HAS_LOAD_STORE_LR
1498	select CPU_SUPPORTS_32BIT_KERNEL
1499	select CPU_SUPPORTS_64BIT_KERNEL
1500	select CPU_SUPPORTS_HIGHMEM
1501	select CPU_SUPPORTS_HUGEPAGES
1502	help
1503	  Choose this option to build a kernel for release 1 or later of the
1504	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1505	  MIPS processor are based on a MIPS64 processor.  If you know the
1506	  specific type of processor in your system, choose those that one
1507	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1508	  Release 2 of the MIPS64 architecture is available since several
1509	  years so chances are you even have a MIPS64 Release 2 processor
1510	  in which case you should choose CPU_MIPS64_R2 instead for better
1511	  performance.
1512
1513config CPU_MIPS64_R2
1514	bool "MIPS64 Release 2"
1515	depends on SYS_HAS_CPU_MIPS64_R2
1516	select CPU_HAS_PREFETCH
1517	select CPU_HAS_LOAD_STORE_LR
1518	select CPU_SUPPORTS_32BIT_KERNEL
1519	select CPU_SUPPORTS_64BIT_KERNEL
1520	select CPU_SUPPORTS_HIGHMEM
1521	select CPU_SUPPORTS_HUGEPAGES
1522	select CPU_SUPPORTS_MSA
1523	select HAVE_KVM
1524	help
1525	  Choose this option to build a kernel for release 2 or later of the
1526	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1527	  MIPS processor are based on a MIPS64 processor.  If you know the
1528	  specific type of processor in your system, choose those that one
1529	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1530
1531config CPU_MIPS64_R6
1532	bool "MIPS64 Release 6"
1533	depends on SYS_HAS_CPU_MIPS64_R6
1534	select CPU_HAS_PREFETCH
1535	select CPU_SUPPORTS_32BIT_KERNEL
1536	select CPU_SUPPORTS_64BIT_KERNEL
1537	select CPU_SUPPORTS_HIGHMEM
1538	select CPU_SUPPORTS_MSA
1539	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1540	select HAVE_KVM
1541	help
1542	  Choose this option to build a kernel for release 6 or later of the
1543	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1544	  family, are based on a MIPS64r6 processor. If you own an older
1545	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1546
1547config CPU_R3000
1548	bool "R3000"
1549	depends on SYS_HAS_CPU_R3000
1550	select CPU_HAS_WB
1551	select CPU_HAS_LOAD_STORE_LR
1552	select CPU_SUPPORTS_32BIT_KERNEL
1553	select CPU_SUPPORTS_HIGHMEM
1554	help
1555	  Please make sure to pick the right CPU type. Linux/MIPS is not
1556	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1557	  *not* work on R4000 machines and vice versa.  However, since most
1558	  of the supported machines have an R4000 (or similar) CPU, R4x00
1559	  might be a safe bet.  If the resulting kernel does not work,
1560	  try to recompile with R3000.
1561
1562config CPU_TX39XX
1563	bool "R39XX"
1564	depends on SYS_HAS_CPU_TX39XX
1565	select CPU_SUPPORTS_32BIT_KERNEL
1566	select CPU_HAS_LOAD_STORE_LR
1567
1568config CPU_VR41XX
1569	bool "R41xx"
1570	depends on SYS_HAS_CPU_VR41XX
1571	select CPU_SUPPORTS_32BIT_KERNEL
1572	select CPU_SUPPORTS_64BIT_KERNEL
1573	select CPU_HAS_LOAD_STORE_LR
1574	help
1575	  The options selects support for the NEC VR4100 series of processors.
1576	  Only choose this option if you have one of these processors as a
1577	  kernel built with this option will not run on any other type of
1578	  processor or vice versa.
1579
1580config CPU_R4300
1581	bool "R4300"
1582	depends on SYS_HAS_CPU_R4300
1583	select CPU_SUPPORTS_32BIT_KERNEL
1584	select CPU_SUPPORTS_64BIT_KERNEL
1585	select CPU_HAS_LOAD_STORE_LR
1586	help
1587	  MIPS Technologies R4300-series processors.
1588
1589config CPU_R4X00
1590	bool "R4x00"
1591	depends on SYS_HAS_CPU_R4X00
1592	select CPU_SUPPORTS_32BIT_KERNEL
1593	select CPU_SUPPORTS_64BIT_KERNEL
1594	select CPU_SUPPORTS_HUGEPAGES
1595	select CPU_HAS_LOAD_STORE_LR
1596	help
1597	  MIPS Technologies R4000-series processors other than 4300, including
1598	  the R4000, R4400, R4600, and 4700.
1599
1600config CPU_TX49XX
1601	bool "R49XX"
1602	depends on SYS_HAS_CPU_TX49XX
1603	select CPU_HAS_PREFETCH
1604	select CPU_HAS_LOAD_STORE_LR
1605	select CPU_SUPPORTS_32BIT_KERNEL
1606	select CPU_SUPPORTS_64BIT_KERNEL
1607	select CPU_SUPPORTS_HUGEPAGES
1608
1609config CPU_R5000
1610	bool "R5000"
1611	depends on SYS_HAS_CPU_R5000
1612	select CPU_SUPPORTS_32BIT_KERNEL
1613	select CPU_SUPPORTS_64BIT_KERNEL
1614	select CPU_SUPPORTS_HUGEPAGES
1615	select CPU_HAS_LOAD_STORE_LR
1616	help
1617	  MIPS Technologies R5000-series processors other than the Nevada.
1618
1619config CPU_R5432
1620	bool "R5432"
1621	depends on SYS_HAS_CPU_R5432
1622	select CPU_SUPPORTS_32BIT_KERNEL
1623	select CPU_SUPPORTS_64BIT_KERNEL
1624	select CPU_SUPPORTS_HUGEPAGES
1625	select CPU_HAS_LOAD_STORE_LR
1626
1627config CPU_R5500
1628	bool "R5500"
1629	depends on SYS_HAS_CPU_R5500
1630	select CPU_SUPPORTS_32BIT_KERNEL
1631	select CPU_SUPPORTS_64BIT_KERNEL
1632	select CPU_SUPPORTS_HUGEPAGES
1633	select CPU_HAS_LOAD_STORE_LR
1634	help
1635	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1636	  instruction set.
1637
1638config CPU_NEVADA
1639	bool "RM52xx"
1640	depends on SYS_HAS_CPU_NEVADA
1641	select CPU_SUPPORTS_32BIT_KERNEL
1642	select CPU_SUPPORTS_64BIT_KERNEL
1643	select CPU_SUPPORTS_HUGEPAGES
1644	select CPU_HAS_LOAD_STORE_LR
1645	help
1646	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1647
1648config CPU_R8000
1649	bool "R8000"
1650	depends on SYS_HAS_CPU_R8000
1651	select CPU_HAS_PREFETCH
1652	select CPU_HAS_LOAD_STORE_LR
1653	select CPU_SUPPORTS_64BIT_KERNEL
1654	help
1655	  MIPS Technologies R8000 processors.  Note these processors are
1656	  uncommon and the support for them is incomplete.
1657
1658config CPU_R10000
1659	bool "R10000"
1660	depends on SYS_HAS_CPU_R10000
1661	select CPU_HAS_PREFETCH
1662	select CPU_HAS_LOAD_STORE_LR
1663	select CPU_SUPPORTS_32BIT_KERNEL
1664	select CPU_SUPPORTS_64BIT_KERNEL
1665	select CPU_SUPPORTS_HIGHMEM
1666	select CPU_SUPPORTS_HUGEPAGES
1667	help
1668	  MIPS Technologies R10000-series processors.
1669
1670config CPU_RM7000
1671	bool "RM7000"
1672	depends on SYS_HAS_CPU_RM7000
1673	select CPU_HAS_PREFETCH
1674	select CPU_HAS_LOAD_STORE_LR
1675	select CPU_SUPPORTS_32BIT_KERNEL
1676	select CPU_SUPPORTS_64BIT_KERNEL
1677	select CPU_SUPPORTS_HIGHMEM
1678	select CPU_SUPPORTS_HUGEPAGES
1679
1680config CPU_SB1
1681	bool "SB1"
1682	depends on SYS_HAS_CPU_SB1
1683	select CPU_HAS_LOAD_STORE_LR
1684	select CPU_SUPPORTS_32BIT_KERNEL
1685	select CPU_SUPPORTS_64BIT_KERNEL
1686	select CPU_SUPPORTS_HIGHMEM
1687	select CPU_SUPPORTS_HUGEPAGES
1688	select WEAK_ORDERING
1689
1690config CPU_CAVIUM_OCTEON
1691	bool "Cavium Octeon processor"
1692	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1693	select CPU_HAS_PREFETCH
1694	select CPU_HAS_LOAD_STORE_LR
1695	select CPU_SUPPORTS_64BIT_KERNEL
1696	select WEAK_ORDERING
1697	select CPU_SUPPORTS_HIGHMEM
1698	select CPU_SUPPORTS_HUGEPAGES
1699	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1700	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1701	select MIPS_L1_CACHE_SHIFT_7
1702	select HAVE_KVM
1703	help
1704	  The Cavium Octeon processor is a highly integrated chip containing
1705	  many ethernet hardware widgets for networking tasks. The processor
1706	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1707	  Full details can be found at http://www.caviumnetworks.com.
1708
1709config CPU_BMIPS
1710	bool "Broadcom BMIPS"
1711	depends on SYS_HAS_CPU_BMIPS
1712	select CPU_MIPS32
1713	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1714	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1715	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1716	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1717	select CPU_SUPPORTS_32BIT_KERNEL
1718	select DMA_NONCOHERENT
1719	select IRQ_MIPS_CPU
1720	select SWAP_IO_SPACE
1721	select WEAK_ORDERING
1722	select CPU_SUPPORTS_HIGHMEM
1723	select CPU_HAS_PREFETCH
1724	select CPU_HAS_LOAD_STORE_LR
1725	select CPU_SUPPORTS_CPUFREQ
1726	select MIPS_EXTERNAL_TIMER
1727	help
1728	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1729
1730config CPU_XLR
1731	bool "Netlogic XLR SoC"
1732	depends on SYS_HAS_CPU_XLR
1733	select CPU_HAS_LOAD_STORE_LR
1734	select CPU_SUPPORTS_32BIT_KERNEL
1735	select CPU_SUPPORTS_64BIT_KERNEL
1736	select CPU_SUPPORTS_HIGHMEM
1737	select CPU_SUPPORTS_HUGEPAGES
1738	select WEAK_ORDERING
1739	select WEAK_REORDERING_BEYOND_LLSC
1740	help
1741	  Netlogic Microsystems XLR/XLS processors.
1742
1743config CPU_XLP
1744	bool "Netlogic XLP SoC"
1745	depends on SYS_HAS_CPU_XLP
1746	select CPU_SUPPORTS_32BIT_KERNEL
1747	select CPU_SUPPORTS_64BIT_KERNEL
1748	select CPU_SUPPORTS_HIGHMEM
1749	select WEAK_ORDERING
1750	select WEAK_REORDERING_BEYOND_LLSC
1751	select CPU_HAS_PREFETCH
1752	select CPU_HAS_LOAD_STORE_LR
1753	select CPU_MIPSR2
1754	select CPU_SUPPORTS_HUGEPAGES
1755	select MIPS_ASID_BITS_VARIABLE
1756	help
1757	  Netlogic Microsystems XLP processors.
1758endchoice
1759
1760config CPU_MIPS32_3_5_FEATURES
1761	bool "MIPS32 Release 3.5 Features"
1762	depends on SYS_HAS_CPU_MIPS32_R3_5
1763	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1764	help
1765	  Choose this option to build a kernel for release 2 or later of the
1766	  MIPS32 architecture including features from the 3.5 release such as
1767	  support for Enhanced Virtual Addressing (EVA).
1768
1769config CPU_MIPS32_3_5_EVA
1770	bool "Enhanced Virtual Addressing (EVA)"
1771	depends on CPU_MIPS32_3_5_FEATURES
1772	select EVA
1773	default y
1774	help
1775	  Choose this option if you want to enable the Enhanced Virtual
1776	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1777	  One of its primary benefits is an increase in the maximum size
1778	  of lowmem (up to 3GB). If unsure, say 'N' here.
1779
1780config CPU_MIPS32_R5_FEATURES
1781	bool "MIPS32 Release 5 Features"
1782	depends on SYS_HAS_CPU_MIPS32_R5
1783	depends on CPU_MIPS32_R2
1784	help
1785	  Choose this option to build a kernel for release 2 or later of the
1786	  MIPS32 architecture including features from release 5 such as
1787	  support for Extended Physical Addressing (XPA).
1788
1789config CPU_MIPS32_R5_XPA
1790	bool "Extended Physical Addressing (XPA)"
1791	depends on CPU_MIPS32_R5_FEATURES
1792	depends on !EVA
1793	depends on !PAGE_SIZE_4KB
1794	depends on SYS_SUPPORTS_HIGHMEM
1795	select XPA
1796	select HIGHMEM
1797	select PHYS_ADDR_T_64BIT
1798	default n
1799	help
1800	  Choose this option if you want to enable the Extended Physical
1801	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1802	  benefit is to increase physical addressing equal to or greater
1803	  than 40 bits. Note that this has the side effect of turning on
1804	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1805	  If unsure, say 'N' here.
1806
1807if CPU_LOONGSON2F
1808config CPU_NOP_WORKAROUNDS
1809	bool
1810
1811config CPU_JUMP_WORKAROUNDS
1812	bool
1813
1814config CPU_LOONGSON2F_WORKAROUNDS
1815	bool "Loongson 2F Workarounds"
1816	default y
1817	select CPU_NOP_WORKAROUNDS
1818	select CPU_JUMP_WORKAROUNDS
1819	help
1820	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1821	  require workarounds.  Without workarounds the system may hang
1822	  unexpectedly.  For more information please refer to the gas
1823	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1824
1825	  Loongson 2F03 and later have fixed these issues and no workarounds
1826	  are needed.  The workarounds have no significant side effect on them
1827	  but may decrease the performance of the system so this option should
1828	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1829	  systems.
1830
1831	  If unsure, please say Y.
1832endif # CPU_LOONGSON2F
1833
1834config SYS_SUPPORTS_ZBOOT
1835	bool
1836	select HAVE_KERNEL_GZIP
1837	select HAVE_KERNEL_BZIP2
1838	select HAVE_KERNEL_LZ4
1839	select HAVE_KERNEL_LZMA
1840	select HAVE_KERNEL_LZO
1841	select HAVE_KERNEL_XZ
1842
1843config SYS_SUPPORTS_ZBOOT_UART16550
1844	bool
1845	select SYS_SUPPORTS_ZBOOT
1846
1847config SYS_SUPPORTS_ZBOOT_UART_PROM
1848	bool
1849	select SYS_SUPPORTS_ZBOOT
1850
1851config CPU_LOONGSON2
1852	bool
1853	select CPU_SUPPORTS_32BIT_KERNEL
1854	select CPU_SUPPORTS_64BIT_KERNEL
1855	select CPU_SUPPORTS_HIGHMEM
1856	select CPU_SUPPORTS_HUGEPAGES
1857	select ARCH_HAS_PHYS_TO_DMA
1858	select CPU_HAS_LOAD_STORE_LR
1859
1860config CPU_LOONGSON1
1861	bool
1862	select CPU_MIPS32
1863	select CPU_MIPSR1
1864	select CPU_HAS_PREFETCH
1865	select CPU_HAS_LOAD_STORE_LR
1866	select CPU_SUPPORTS_32BIT_KERNEL
1867	select CPU_SUPPORTS_HIGHMEM
1868	select CPU_SUPPORTS_CPUFREQ
1869
1870config CPU_BMIPS32_3300
1871	select SMP_UP if SMP
1872	bool
1873
1874config CPU_BMIPS4350
1875	bool
1876	select SYS_SUPPORTS_SMP
1877	select SYS_SUPPORTS_HOTPLUG_CPU
1878
1879config CPU_BMIPS4380
1880	bool
1881	select MIPS_L1_CACHE_SHIFT_6
1882	select SYS_SUPPORTS_SMP
1883	select SYS_SUPPORTS_HOTPLUG_CPU
1884	select CPU_HAS_RIXI
1885
1886config CPU_BMIPS5000
1887	bool
1888	select MIPS_CPU_SCACHE
1889	select MIPS_L1_CACHE_SHIFT_7
1890	select SYS_SUPPORTS_SMP
1891	select SYS_SUPPORTS_HOTPLUG_CPU
1892	select CPU_HAS_RIXI
1893
1894config SYS_HAS_CPU_LOONGSON3
1895	bool
1896	select CPU_SUPPORTS_CPUFREQ
1897	select CPU_HAS_RIXI
1898
1899config SYS_HAS_CPU_LOONGSON2E
1900	bool
1901
1902config SYS_HAS_CPU_LOONGSON2F
1903	bool
1904	select CPU_SUPPORTS_CPUFREQ
1905	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1906	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1907
1908config SYS_HAS_CPU_LOONGSON1B
1909	bool
1910
1911config SYS_HAS_CPU_LOONGSON1C
1912	bool
1913
1914config SYS_HAS_CPU_MIPS32_R1
1915	bool
1916
1917config SYS_HAS_CPU_MIPS32_R2
1918	bool
1919
1920config SYS_HAS_CPU_MIPS32_R3_5
1921	bool
1922
1923config SYS_HAS_CPU_MIPS32_R5
1924	bool
1925
1926config SYS_HAS_CPU_MIPS32_R6
1927	bool
1928
1929config SYS_HAS_CPU_MIPS64_R1
1930	bool
1931
1932config SYS_HAS_CPU_MIPS64_R2
1933	bool
1934
1935config SYS_HAS_CPU_MIPS64_R6
1936	bool
1937
1938config SYS_HAS_CPU_R3000
1939	bool
1940
1941config SYS_HAS_CPU_TX39XX
1942	bool
1943
1944config SYS_HAS_CPU_VR41XX
1945	bool
1946
1947config SYS_HAS_CPU_R4300
1948	bool
1949
1950config SYS_HAS_CPU_R4X00
1951	bool
1952
1953config SYS_HAS_CPU_TX49XX
1954	bool
1955
1956config SYS_HAS_CPU_R5000
1957	bool
1958
1959config SYS_HAS_CPU_R5432
1960	bool
1961
1962config SYS_HAS_CPU_R5500
1963	bool
1964
1965config SYS_HAS_CPU_NEVADA
1966	bool
1967
1968config SYS_HAS_CPU_R8000
1969	bool
1970
1971config SYS_HAS_CPU_R10000
1972	bool
1973
1974config SYS_HAS_CPU_RM7000
1975	bool
1976
1977config SYS_HAS_CPU_SB1
1978	bool
1979
1980config SYS_HAS_CPU_CAVIUM_OCTEON
1981	bool
1982
1983config SYS_HAS_CPU_BMIPS
1984	bool
1985
1986config SYS_HAS_CPU_BMIPS32_3300
1987	bool
1988	select SYS_HAS_CPU_BMIPS
1989
1990config SYS_HAS_CPU_BMIPS4350
1991	bool
1992	select SYS_HAS_CPU_BMIPS
1993
1994config SYS_HAS_CPU_BMIPS4380
1995	bool
1996	select SYS_HAS_CPU_BMIPS
1997
1998config SYS_HAS_CPU_BMIPS5000
1999	bool
2000	select SYS_HAS_CPU_BMIPS
2001
2002config SYS_HAS_CPU_XLR
2003	bool
2004
2005config SYS_HAS_CPU_XLP
2006	bool
2007
2008#
2009# CPU may reorder R->R, R->W, W->R, W->W
2010# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2011#
2012config WEAK_ORDERING
2013	bool
2014
2015#
2016# CPU may reorder reads and writes beyond LL/SC
2017# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2018#
2019config WEAK_REORDERING_BEYOND_LLSC
2020	bool
2021endmenu
2022
2023#
2024# These two indicate any level of the MIPS32 and MIPS64 architecture
2025#
2026config CPU_MIPS32
2027	bool
2028	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2029
2030config CPU_MIPS64
2031	bool
2032	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2033
2034#
2035# These two indicate the revision of the architecture, either Release 1 or Release 2
2036#
2037config CPU_MIPSR1
2038	bool
2039	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2040
2041config CPU_MIPSR2
2042	bool
2043	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2044	select CPU_HAS_RIXI
2045	select MIPS_SPRAM
2046
2047config CPU_MIPSR6
2048	bool
2049	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2050	select CPU_HAS_RIXI
2051	select HAVE_ARCH_BITREVERSE
2052	select MIPS_ASID_BITS_VARIABLE
2053	select MIPS_CRC_SUPPORT
2054	select MIPS_SPRAM
2055
2056config EVA
2057	bool
2058
2059config XPA
2060	bool
2061
2062config SYS_SUPPORTS_32BIT_KERNEL
2063	bool
2064config SYS_SUPPORTS_64BIT_KERNEL
2065	bool
2066config CPU_SUPPORTS_32BIT_KERNEL
2067	bool
2068config CPU_SUPPORTS_64BIT_KERNEL
2069	bool
2070config CPU_SUPPORTS_CPUFREQ
2071	bool
2072config CPU_SUPPORTS_ADDRWINCFG
2073	bool
2074config CPU_SUPPORTS_HUGEPAGES
2075	bool
2076config CPU_SUPPORTS_UNCACHED_ACCELERATED
2077	bool
2078config MIPS_PGD_C0_CONTEXT
2079	bool
2080	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2081
2082#
2083# Set to y for ptrace access to watch registers.
2084#
2085config HARDWARE_WATCHPOINTS
2086       bool
2087       default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2088
2089menu "Kernel type"
2090
2091choice
2092	prompt "Kernel code model"
2093	help
2094	  You should only select this option if you have a workload that
2095	  actually benefits from 64-bit processing or if your machine has
2096	  large memory.  You will only be presented a single option in this
2097	  menu if your system does not support both 32-bit and 64-bit kernels.
2098
2099config 32BIT
2100	bool "32-bit kernel"
2101	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2102	select TRAD_SIGNALS
2103	help
2104	  Select this option if you want to build a 32-bit kernel.
2105
2106config 64BIT
2107	bool "64-bit kernel"
2108	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2109	help
2110	  Select this option if you want to build a 64-bit kernel.
2111
2112endchoice
2113
2114config KVM_GUEST
2115	bool "KVM Guest Kernel"
2116	depends on BROKEN_ON_SMP
2117	help
2118	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2119	  mode.
2120
2121config KVM_GUEST_TIMER_FREQ
2122	int "Count/Compare Timer Frequency (MHz)"
2123	depends on KVM_GUEST
2124	default 100
2125	help
2126	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2127	  emulation when determining guest CPU Frequency. Instead, the guest's
2128	  timer frequency is specified directly.
2129
2130config MIPS_VA_BITS_48
2131	bool "48 bits virtual memory"
2132	depends on 64BIT
2133	help
2134	  Support a maximum at least 48 bits of application virtual
2135	  memory.  Default is 40 bits or less, depending on the CPU.
2136	  For page sizes 16k and above, this option results in a small
2137	  memory overhead for page tables.  For 4k page size, a fourth
2138	  level of page tables is added which imposes both a memory
2139	  overhead as well as slower TLB fault handling.
2140
2141	  If unsure, say N.
2142
2143choice
2144	prompt "Kernel page size"
2145	default PAGE_SIZE_4KB
2146
2147config PAGE_SIZE_4KB
2148	bool "4kB"
2149	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2150	help
2151	 This option select the standard 4kB Linux page size.  On some
2152	 R3000-family processors this is the only available page size.  Using
2153	 4kB page size will minimize memory consumption and is therefore
2154	 recommended for low memory systems.
2155
2156config PAGE_SIZE_8KB
2157	bool "8kB"
2158	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2159	depends on !MIPS_VA_BITS_48
2160	help
2161	  Using 8kB page size will result in higher performance kernel at
2162	  the price of higher memory consumption.  This option is available
2163	  only on R8000 and cnMIPS processors.  Note that you will need a
2164	  suitable Linux distribution to support this.
2165
2166config PAGE_SIZE_16KB
2167	bool "16kB"
2168	depends on !CPU_R3000 && !CPU_TX39XX
2169	help
2170	  Using 16kB page size will result in higher performance kernel at
2171	  the price of higher memory consumption.  This option is available on
2172	  all non-R3000 family processors.  Note that you will need a suitable
2173	  Linux distribution to support this.
2174
2175config PAGE_SIZE_32KB
2176	bool "32kB"
2177	depends on CPU_CAVIUM_OCTEON
2178	depends on !MIPS_VA_BITS_48
2179	help
2180	  Using 32kB page size will result in higher performance kernel at
2181	  the price of higher memory consumption.  This option is available
2182	  only on cnMIPS cores.  Note that you will need a suitable Linux
2183	  distribution to support this.
2184
2185config PAGE_SIZE_64KB
2186	bool "64kB"
2187	depends on !CPU_R3000 && !CPU_TX39XX
2188	help
2189	  Using 64kB page size will result in higher performance kernel at
2190	  the price of higher memory consumption.  This option is available on
2191	  all non-R3000 family processor.  Not that at the time of this
2192	  writing this option is still high experimental.
2193
2194endchoice
2195
2196config FORCE_MAX_ZONEORDER
2197	int "Maximum zone order"
2198	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2199	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2200	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2201	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2202	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2203	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2204	range 11 64
2205	default "11"
2206	help
2207	  The kernel memory allocator divides physically contiguous memory
2208	  blocks into "zones", where each zone is a power of two number of
2209	  pages.  This option selects the largest power of two that the kernel
2210	  keeps in the memory allocator.  If you need to allocate very large
2211	  blocks of physically contiguous memory, then you may need to
2212	  increase this value.
2213
2214	  This config option is actually maximum order plus one. For example,
2215	  a value of 11 means that the largest free memory block is 2^10 pages.
2216
2217	  The page size is not necessarily 4KB.  Keep this in mind
2218	  when choosing a value for this option.
2219
2220config BOARD_SCACHE
2221	bool
2222
2223config IP22_CPU_SCACHE
2224	bool
2225	select BOARD_SCACHE
2226
2227#
2228# Support for a MIPS32 / MIPS64 style S-caches
2229#
2230config MIPS_CPU_SCACHE
2231	bool
2232	select BOARD_SCACHE
2233
2234config R5000_CPU_SCACHE
2235	bool
2236	select BOARD_SCACHE
2237
2238config RM7000_CPU_SCACHE
2239	bool
2240	select BOARD_SCACHE
2241
2242config SIBYTE_DMA_PAGEOPS
2243	bool "Use DMA to clear/copy pages"
2244	depends on CPU_SB1
2245	help
2246	  Instead of using the CPU to zero and copy pages, use a Data Mover
2247	  channel.  These DMA channels are otherwise unused by the standard
2248	  SiByte Linux port.  Seems to give a small performance benefit.
2249
2250config CPU_HAS_PREFETCH
2251	bool
2252
2253config CPU_GENERIC_DUMP_TLB
2254	bool
2255	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2256
2257config CPU_R4K_FPU
2258	bool
2259	default y if !(CPU_R3000 || CPU_TX39XX)
2260
2261config CPU_R4K_CACHE_TLB
2262	bool
2263	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2264
2265config MIPS_MT_SMP
2266	bool "MIPS MT SMP support (1 TC on each available VPE)"
2267	default y
2268	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2269	select CPU_MIPSR2_IRQ_VI
2270	select CPU_MIPSR2_IRQ_EI
2271	select SYNC_R4K
2272	select MIPS_MT
2273	select SMP
2274	select SMP_UP
2275	select SYS_SUPPORTS_SMP
2276	select SYS_SUPPORTS_SCHED_SMT
2277	select MIPS_PERF_SHARED_TC_COUNTERS
2278	help
2279	  This is a kernel model which is known as SMVP. This is supported
2280	  on cores with the MT ASE and uses the available VPEs to implement
2281	  virtual processors which supports SMP. This is equivalent to the
2282	  Intel Hyperthreading feature. For further information go to
2283	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2284
2285config MIPS_MT
2286	bool
2287
2288config SCHED_SMT
2289	bool "SMT (multithreading) scheduler support"
2290	depends on SYS_SUPPORTS_SCHED_SMT
2291	default n
2292	help
2293	  SMT scheduler support improves the CPU scheduler's decision making
2294	  when dealing with MIPS MT enabled cores at a cost of slightly
2295	  increased overhead in some places. If unsure say N here.
2296
2297config SYS_SUPPORTS_SCHED_SMT
2298	bool
2299
2300config SYS_SUPPORTS_MULTITHREADING
2301	bool
2302
2303config MIPS_MT_FPAFF
2304	bool "Dynamic FPU affinity for FP-intensive threads"
2305	default y
2306	depends on MIPS_MT_SMP
2307
2308config MIPSR2_TO_R6_EMULATOR
2309	bool "MIPS R2-to-R6 emulator"
2310	depends on CPU_MIPSR6
2311	default y
2312	help
2313	  Choose this option if you want to run non-R6 MIPS userland code.
2314	  Even if you say 'Y' here, the emulator will still be disabled by
2315	  default. You can enable it using the 'mipsr2emu' kernel option.
2316	  The only reason this is a build-time option is to save ~14K from the
2317	  final kernel image.
2318
2319config SYS_SUPPORTS_VPE_LOADER
2320	bool
2321	depends on SYS_SUPPORTS_MULTITHREADING
2322	help
2323	  Indicates that the platform supports the VPE loader, and provides
2324	  physical_memsize.
2325
2326config MIPS_VPE_LOADER
2327	bool "VPE loader support."
2328	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2329	select CPU_MIPSR2_IRQ_VI
2330	select CPU_MIPSR2_IRQ_EI
2331	select MIPS_MT
2332	help
2333	  Includes a loader for loading an elf relocatable object
2334	  onto another VPE and running it.
2335
2336config MIPS_VPE_LOADER_CMP
2337	bool
2338	default "y"
2339	depends on MIPS_VPE_LOADER && MIPS_CMP
2340
2341config MIPS_VPE_LOADER_MT
2342	bool
2343	default "y"
2344	depends on MIPS_VPE_LOADER && !MIPS_CMP
2345
2346config MIPS_VPE_LOADER_TOM
2347	bool "Load VPE program into memory hidden from linux"
2348	depends on MIPS_VPE_LOADER
2349	default y
2350	help
2351	  The loader can use memory that is present but has been hidden from
2352	  Linux using the kernel command line option "mem=xxMB". It's up to
2353	  you to ensure the amount you put in the option and the space your
2354	  program requires is less or equal to the amount physically present.
2355
2356config MIPS_VPE_APSP_API
2357	bool "Enable support for AP/SP API (RTLX)"
2358	depends on MIPS_VPE_LOADER
2359
2360config MIPS_VPE_APSP_API_CMP
2361	bool
2362	default "y"
2363	depends on MIPS_VPE_APSP_API && MIPS_CMP
2364
2365config MIPS_VPE_APSP_API_MT
2366	bool
2367	default "y"
2368	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2369
2370config MIPS_CMP
2371	bool "MIPS CMP framework support (DEPRECATED)"
2372	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2373	select SMP
2374	select SYNC_R4K
2375	select SYS_SUPPORTS_SMP
2376	select WEAK_ORDERING
2377	default n
2378	help
2379	  Select this if you are using a bootloader which implements the "CMP
2380	  framework" protocol (ie. YAMON) and want your kernel to make use of
2381	  its ability to start secondary CPUs.
2382
2383	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2384	  instead of this.
2385
2386config MIPS_CPS
2387	bool "MIPS Coherent Processing System support"
2388	depends on SYS_SUPPORTS_MIPS_CPS
2389	select MIPS_CM
2390	select MIPS_CPS_PM if HOTPLUG_CPU
2391	select SMP
2392	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2393	select SYS_SUPPORTS_HOTPLUG_CPU
2394	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2395	select SYS_SUPPORTS_SMP
2396	select WEAK_ORDERING
2397	help
2398	  Select this if you wish to run an SMP kernel across multiple cores
2399	  within a MIPS Coherent Processing System. When this option is
2400	  enabled the kernel will probe for other cores and boot them with
2401	  no external assistance. It is safe to enable this when hardware
2402	  support is unavailable.
2403
2404config MIPS_CPS_PM
2405	depends on MIPS_CPS
2406	bool
2407
2408config MIPS_CM
2409	bool
2410	select MIPS_CPC
2411
2412config MIPS_CPC
2413	bool
2414
2415config SB1_PASS_2_WORKAROUNDS
2416	bool
2417	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2418	default y
2419
2420config SB1_PASS_2_1_WORKAROUNDS
2421	bool
2422	depends on CPU_SB1 && CPU_SB1_PASS_2
2423	default y
2424
2425
2426choice
2427	prompt "SmartMIPS or microMIPS ASE support"
2428
2429config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2430	bool "None"
2431	help
2432	  Select this if you want neither microMIPS nor SmartMIPS support
2433
2434config CPU_HAS_SMARTMIPS
2435	depends on SYS_SUPPORTS_SMARTMIPS
2436	bool "SmartMIPS"
2437	help
2438	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2439	  increased security at both hardware and software level for
2440	  smartcards.  Enabling this option will allow proper use of the
2441	  SmartMIPS instructions by Linux applications.  However a kernel with
2442	  this option will not work on a MIPS core without SmartMIPS core.  If
2443	  you don't know you probably don't have SmartMIPS and should say N
2444	  here.
2445
2446config CPU_MICROMIPS
2447	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2448	bool "microMIPS"
2449	help
2450	  When this option is enabled the kernel will be built using the
2451	  microMIPS ISA
2452
2453endchoice
2454
2455config CPU_HAS_MSA
2456	bool "Support for the MIPS SIMD Architecture"
2457	depends on CPU_SUPPORTS_MSA
2458	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2459	help
2460	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2461	  and a set of SIMD instructions to operate on them. When this option
2462	  is enabled the kernel will support allocating & switching MSA
2463	  vector register contexts. If you know that your kernel will only be
2464	  running on CPUs which do not support MSA or that your userland will
2465	  not be making use of it then you may wish to say N here to reduce
2466	  the size & complexity of your kernel.
2467
2468	  If unsure, say Y.
2469
2470config CPU_HAS_WB
2471	bool
2472
2473config XKS01
2474	bool
2475
2476config CPU_HAS_RIXI
2477	bool
2478
2479config CPU_HAS_LOAD_STORE_LR
2480	bool
2481	help
2482	  CPU has support for unaligned load and store instructions:
2483	  LWL, LWR, SWL, SWR (Load/store word left/right).
2484	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2485
2486#
2487# Vectored interrupt mode is an R2 feature
2488#
2489config CPU_MIPSR2_IRQ_VI
2490	bool
2491
2492#
2493# Extended interrupt mode is an R2 feature
2494#
2495config CPU_MIPSR2_IRQ_EI
2496	bool
2497
2498config CPU_HAS_SYNC
2499	bool
2500	depends on !CPU_R3000
2501	default y
2502
2503#
2504# CPU non-features
2505#
2506config CPU_DADDI_WORKAROUNDS
2507	bool
2508
2509config CPU_R4000_WORKAROUNDS
2510	bool
2511	select CPU_R4400_WORKAROUNDS
2512
2513config CPU_R4400_WORKAROUNDS
2514	bool
2515
2516config MIPS_ASID_SHIFT
2517	int
2518	default 6 if CPU_R3000 || CPU_TX39XX
2519	default 4 if CPU_R8000
2520	default 0
2521
2522config MIPS_ASID_BITS
2523	int
2524	default 0 if MIPS_ASID_BITS_VARIABLE
2525	default 6 if CPU_R3000 || CPU_TX39XX
2526	default 8
2527
2528config MIPS_ASID_BITS_VARIABLE
2529	bool
2530
2531config MIPS_CRC_SUPPORT
2532	bool
2533
2534#
2535# - Highmem only makes sense for the 32-bit kernel.
2536# - The current highmem code will only work properly on physically indexed
2537#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2538#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2539#   moment we protect the user and offer the highmem option only on machines
2540#   where it's known to be safe.  This will not offer highmem on a few systems
2541#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2542#   indexed CPUs but we're playing safe.
2543# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2544#   know they might have memory configurations that could make use of highmem
2545#   support.
2546#
2547config HIGHMEM
2548	bool "High Memory Support"
2549	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2550
2551config CPU_SUPPORTS_HIGHMEM
2552	bool
2553
2554config SYS_SUPPORTS_HIGHMEM
2555	bool
2556
2557config SYS_SUPPORTS_SMARTMIPS
2558	bool
2559
2560config SYS_SUPPORTS_MICROMIPS
2561	bool
2562
2563config SYS_SUPPORTS_MIPS16
2564	bool
2565	help
2566	  This option must be set if a kernel might be executed on a MIPS16-
2567	  enabled CPU even if MIPS16 is not actually being used.  In other
2568	  words, it makes the kernel MIPS16-tolerant.
2569
2570config CPU_SUPPORTS_MSA
2571	bool
2572
2573config ARCH_FLATMEM_ENABLE
2574	def_bool y
2575	depends on !NUMA && !CPU_LOONGSON2
2576
2577config ARCH_DISCONTIGMEM_ENABLE
2578	bool
2579	default y if SGI_IP27
2580	help
2581	  Say Y to support efficient handling of discontiguous physical memory,
2582	  for architectures which are either NUMA (Non-Uniform Memory Access)
2583	  or have huge holes in the physical address space for other reasons.
2584	  See <file:Documentation/vm/numa.rst> for more.
2585
2586config ARCH_SPARSEMEM_ENABLE
2587	bool
2588	select SPARSEMEM_STATIC
2589
2590config NUMA
2591	bool "NUMA Support"
2592	depends on SYS_SUPPORTS_NUMA
2593	help
2594	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2595	  Access).  This option improves performance on systems with more
2596	  than two nodes; on two node systems it is generally better to
2597	  leave it disabled; on single node systems disable this option
2598	  disabled.
2599
2600config SYS_SUPPORTS_NUMA
2601	bool
2602
2603config RELOCATABLE
2604	bool "Relocatable kernel"
2605	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2606	help
2607	  This builds a kernel image that retains relocation information
2608	  so it can be loaded someplace besides the default 1MB.
2609	  The relocations make the kernel binary about 15% larger,
2610	  but are discarded at runtime
2611
2612config RELOCATION_TABLE_SIZE
2613	hex "Relocation table size"
2614	depends on RELOCATABLE
2615	range 0x0 0x01000000
2616	default "0x00100000"
2617	---help---
2618	  A table of relocation data will be appended to the kernel binary
2619	  and parsed at boot to fix up the relocated kernel.
2620
2621	  This option allows the amount of space reserved for the table to be
2622	  adjusted, although the default of 1Mb should be ok in most cases.
2623
2624	  The build will fail and a valid size suggested if this is too small.
2625
2626	  If unsure, leave at the default value.
2627
2628config RANDOMIZE_BASE
2629	bool "Randomize the address of the kernel image"
2630	depends on RELOCATABLE
2631	---help---
2632	   Randomizes the physical and virtual address at which the
2633	   kernel image is loaded, as a security feature that
2634	   deters exploit attempts relying on knowledge of the location
2635	   of kernel internals.
2636
2637	   Entropy is generated using any coprocessor 0 registers available.
2638
2639	   The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2640
2641	   If unsure, say N.
2642
2643config RANDOMIZE_BASE_MAX_OFFSET
2644	hex "Maximum kASLR offset" if EXPERT
2645	depends on RANDOMIZE_BASE
2646	range 0x0 0x40000000 if EVA || 64BIT
2647	range 0x0 0x08000000
2648	default "0x01000000"
2649	---help---
2650	  When kASLR is active, this provides the maximum offset that will
2651	  be applied to the kernel image. It should be set according to the
2652	  amount of physical RAM available in the target system minus
2653	  PHYSICAL_START and must be a power of 2.
2654
2655	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2656	  EVA or 64-bit. The default is 16Mb.
2657
2658config NODES_SHIFT
2659	int
2660	default "6"
2661	depends on NEED_MULTIPLE_NODES
2662
2663config HW_PERF_EVENTS
2664	bool "Enable hardware performance counter support for perf events"
2665	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2666	default y
2667	help
2668	  Enable hardware performance counter support for perf events. If
2669	  disabled, perf events will use software events only.
2670
2671config SMP
2672	bool "Multi-Processing support"
2673	depends on SYS_SUPPORTS_SMP
2674	help
2675	  This enables support for systems with more than one CPU. If you have
2676	  a system with only one CPU, say N. If you have a system with more
2677	  than one CPU, say Y.
2678
2679	  If you say N here, the kernel will run on uni- and multiprocessor
2680	  machines, but will use only one CPU of a multiprocessor machine. If
2681	  you say Y here, the kernel will run on many, but not all,
2682	  uniprocessor machines. On a uniprocessor machine, the kernel
2683	  will run faster if you say N here.
2684
2685	  People using multiprocessor machines who say Y here should also say
2686	  Y to "Enhanced Real Time Clock Support", below.
2687
2688	  See also the SMP-HOWTO available at
2689	  <http://www.tldp.org/docs.html#howto>.
2690
2691	  If you don't know what to do here, say N.
2692
2693config HOTPLUG_CPU
2694	bool "Support for hot-pluggable CPUs"
2695	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2696	help
2697	  Say Y here to allow turning CPUs off and on. CPUs can be
2698	  controlled through /sys/devices/system/cpu.
2699	  (Note: power management support will enable this option
2700	    automatically on SMP systems. )
2701	  Say N if you want to disable CPU hotplug.
2702
2703config SMP_UP
2704	bool
2705
2706config SYS_SUPPORTS_MIPS_CMP
2707	bool
2708
2709config SYS_SUPPORTS_MIPS_CPS
2710	bool
2711
2712config SYS_SUPPORTS_SMP
2713	bool
2714
2715config NR_CPUS_DEFAULT_4
2716	bool
2717
2718config NR_CPUS_DEFAULT_8
2719	bool
2720
2721config NR_CPUS_DEFAULT_16
2722	bool
2723
2724config NR_CPUS_DEFAULT_32
2725	bool
2726
2727config NR_CPUS_DEFAULT_64
2728	bool
2729
2730config NR_CPUS
2731	int "Maximum number of CPUs (2-256)"
2732	range 2 256
2733	depends on SMP
2734	default "4" if NR_CPUS_DEFAULT_4
2735	default "8" if NR_CPUS_DEFAULT_8
2736	default "16" if NR_CPUS_DEFAULT_16
2737	default "32" if NR_CPUS_DEFAULT_32
2738	default "64" if NR_CPUS_DEFAULT_64
2739	help
2740	  This allows you to specify the maximum number of CPUs which this
2741	  kernel will support.  The maximum supported value is 32 for 32-bit
2742	  kernel and 64 for 64-bit kernels; the minimum value which makes
2743	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2744	  and 2 for all others.
2745
2746	  This is purely to save memory - each supported CPU adds
2747	  approximately eight kilobytes to the kernel image.  For best
2748	  performance should round up your number of processors to the next
2749	  power of two.
2750
2751config MIPS_PERF_SHARED_TC_COUNTERS
2752	bool
2753
2754config MIPS_NR_CPU_NR_MAP_1024
2755	bool
2756
2757config MIPS_NR_CPU_NR_MAP
2758	int
2759	depends on SMP
2760	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2761	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2762
2763#
2764# Timer Interrupt Frequency Configuration
2765#
2766
2767choice
2768	prompt "Timer frequency"
2769	default HZ_250
2770	help
2771	 Allows the configuration of the timer frequency.
2772
2773	config HZ_24
2774		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2775
2776	config HZ_48
2777		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2778
2779	config HZ_100
2780		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2781
2782	config HZ_128
2783		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2784
2785	config HZ_250
2786		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2787
2788	config HZ_256
2789		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2790
2791	config HZ_1000
2792		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2793
2794	config HZ_1024
2795		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2796
2797endchoice
2798
2799config SYS_SUPPORTS_24HZ
2800	bool
2801
2802config SYS_SUPPORTS_48HZ
2803	bool
2804
2805config SYS_SUPPORTS_100HZ
2806	bool
2807
2808config SYS_SUPPORTS_128HZ
2809	bool
2810
2811config SYS_SUPPORTS_250HZ
2812	bool
2813
2814config SYS_SUPPORTS_256HZ
2815	bool
2816
2817config SYS_SUPPORTS_1000HZ
2818	bool
2819
2820config SYS_SUPPORTS_1024HZ
2821	bool
2822
2823config SYS_SUPPORTS_ARBIT_HZ
2824	bool
2825	default y if !SYS_SUPPORTS_24HZ && \
2826		     !SYS_SUPPORTS_48HZ && \
2827		     !SYS_SUPPORTS_100HZ && \
2828		     !SYS_SUPPORTS_128HZ && \
2829		     !SYS_SUPPORTS_250HZ && \
2830		     !SYS_SUPPORTS_256HZ && \
2831		     !SYS_SUPPORTS_1000HZ && \
2832		     !SYS_SUPPORTS_1024HZ
2833
2834config HZ
2835	int
2836	default 24 if HZ_24
2837	default 48 if HZ_48
2838	default 100 if HZ_100
2839	default 128 if HZ_128
2840	default 250 if HZ_250
2841	default 256 if HZ_256
2842	default 1000 if HZ_1000
2843	default 1024 if HZ_1024
2844
2845config SCHED_HRTICK
2846	def_bool HIGH_RES_TIMERS
2847
2848config KEXEC
2849	bool "Kexec system call"
2850	select KEXEC_CORE
2851	help
2852	  kexec is a system call that implements the ability to shutdown your
2853	  current kernel, and to start another kernel.  It is like a reboot
2854	  but it is independent of the system firmware.   And like a reboot
2855	  you can start any kernel with it, not just Linux.
2856
2857	  The name comes from the similarity to the exec system call.
2858
2859	  It is an ongoing process to be certain the hardware in a machine
2860	  is properly shutdown, so do not be surprised if this code does not
2861	  initially work for you.  As of this writing the exact hardware
2862	  interface is strongly in flux, so no good recommendation can be
2863	  made.
2864
2865config CRASH_DUMP
2866	bool "Kernel crash dumps"
2867	help
2868	  Generate crash dump after being started by kexec.
2869	  This should be normally only set in special crash dump kernels
2870	  which are loaded in the main kernel with kexec-tools into
2871	  a specially reserved region and then later executed after
2872	  a crash by kdump/kexec. The crash dump kernel must be compiled
2873	  to a memory address not used by the main kernel or firmware using
2874	  PHYSICAL_START.
2875
2876config PHYSICAL_START
2877	hex "Physical address where the kernel is loaded"
2878	default "0xffffffff84000000"
2879	depends on CRASH_DUMP
2880	help
2881	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2882	  If you plan to use kernel for capturing the crash dump change
2883	  this value to start of the reserved region (the "X" value as
2884	  specified in the "crashkernel=YM@XM" command line boot parameter
2885	  passed to the panic-ed kernel).
2886
2887config SECCOMP
2888	bool "Enable seccomp to safely compute untrusted bytecode"
2889	depends on PROC_FS
2890	default y
2891	help
2892	  This kernel feature is useful for number crunching applications
2893	  that may need to compute untrusted bytecode during their
2894	  execution. By using pipes or other transports made available to
2895	  the process as file descriptors supporting the read/write
2896	  syscalls, it's possible to isolate those applications in
2897	  their own address space using seccomp. Once seccomp is
2898	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2899	  and the task is only allowed to execute a few safe syscalls
2900	  defined by each seccomp mode.
2901
2902	  If unsure, say Y. Only embedded should say N here.
2903
2904config MIPS_O32_FP64_SUPPORT
2905	bool "Support for O32 binaries using 64-bit FP"
2906	depends on 32BIT || MIPS32_O32
2907	help
2908	  When this is enabled, the kernel will support use of 64-bit floating
2909	  point registers with binaries using the O32 ABI along with the
2910	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2911	  32-bit MIPS systems this support is at the cost of increasing the
2912	  size and complexity of the compiled FPU emulator. Thus if you are
2913	  running a MIPS32 system and know that none of your userland binaries
2914	  will require 64-bit floating point, you may wish to reduce the size
2915	  of your kernel & potentially improve FP emulation performance by
2916	  saying N here.
2917
2918	  Although binutils currently supports use of this flag the details
2919	  concerning its effect upon the O32 ABI in userland are still being
2920	  worked on. In order to avoid userland becoming dependant upon current
2921	  behaviour before the details have been finalised, this option should
2922	  be considered experimental and only enabled by those working upon
2923	  said details.
2924
2925	  If unsure, say N.
2926
2927config USE_OF
2928	bool
2929	select OF
2930	select OF_EARLY_FLATTREE
2931	select IRQ_DOMAIN
2932
2933config UHI_BOOT
2934	bool
2935
2936config BUILTIN_DTB
2937	bool
2938
2939choice
2940	prompt "Kernel appended dtb support" if USE_OF
2941	default MIPS_NO_APPENDED_DTB
2942
2943	config MIPS_NO_APPENDED_DTB
2944		bool "None"
2945		help
2946		  Do not enable appended dtb support.
2947
2948	config MIPS_ELF_APPENDED_DTB
2949		bool "vmlinux"
2950		help
2951		  With this option, the boot code will look for a device tree binary
2952		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2953		  it is empty and the DTB can be appended using binutils command
2954		  objcopy:
2955
2956		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2957
2958		  This is meant as a backward compatiblity convenience for those
2959		  systems with a bootloader that can't be upgraded to accommodate
2960		  the documented boot protocol using a device tree.
2961
2962	config MIPS_RAW_APPENDED_DTB
2963		bool "vmlinux.bin or vmlinuz.bin"
2964		help
2965		  With this option, the boot code will look for a device tree binary
2966		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2967		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2968
2969		  This is meant as a backward compatibility convenience for those
2970		  systems with a bootloader that can't be upgraded to accommodate
2971		  the documented boot protocol using a device tree.
2972
2973		  Beware that there is very little in terms of protection against
2974		  this option being confused by leftover garbage in memory that might
2975		  look like a DTB header after a reboot if no actual DTB is appended
2976		  to vmlinux.bin.  Do not leave this option active in a production kernel
2977		  if you don't intend to always append a DTB.
2978endchoice
2979
2980choice
2981	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2982	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2983					 !MIPS_MALTA && \
2984					 !CAVIUM_OCTEON_SOC
2985	default MIPS_CMDLINE_FROM_BOOTLOADER
2986
2987	config MIPS_CMDLINE_FROM_DTB
2988		depends on USE_OF
2989		bool "Dtb kernel arguments if available"
2990
2991	config MIPS_CMDLINE_DTB_EXTEND
2992		depends on USE_OF
2993		bool "Extend dtb kernel arguments with bootloader arguments"
2994
2995	config MIPS_CMDLINE_FROM_BOOTLOADER
2996		bool "Bootloader kernel arguments if available"
2997
2998	config MIPS_CMDLINE_BUILTIN_EXTEND
2999		depends on CMDLINE_BOOL
3000		bool "Extend builtin kernel arguments with bootloader arguments"
3001endchoice
3002
3003endmenu
3004
3005config LOCKDEP_SUPPORT
3006	bool
3007	default y
3008
3009config STACKTRACE_SUPPORT
3010	bool
3011	default y
3012
3013config HAVE_LATENCYTOP_SUPPORT
3014	bool
3015	default y
3016
3017config PGTABLE_LEVELS
3018	int
3019	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3020	default 3 if 64BIT && !PAGE_SIZE_64KB
3021	default 2
3022
3023config MIPS_AUTO_PFN_OFFSET
3024	bool
3025
3026menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3027
3028config HW_HAS_EISA
3029	bool
3030config HW_HAS_PCI
3031	bool
3032
3033config PCI
3034	bool "Support for PCI controller"
3035	depends on HW_HAS_PCI
3036	select PCI_DOMAINS
3037	help
3038	  Find out whether you have a PCI motherboard. PCI is the name of a
3039	  bus system, i.e. the way the CPU talks to the other stuff inside
3040	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3041	  say Y, otherwise N.
3042
3043config HT_PCI
3044	bool "Support for HT-linked PCI"
3045	default y
3046	depends on CPU_LOONGSON3
3047	select PCI
3048	select PCI_DOMAINS
3049	help
3050	  Loongson family machines use Hyper-Transport bus for inter-core
3051	  connection and device connection. The PCI bus is a subordinate
3052	  linked at HT. Choose Y for Loongson-3 based machines.
3053
3054config PCI_DOMAINS
3055	bool
3056
3057config PCI_DOMAINS_GENERIC
3058	bool
3059
3060config PCI_DRIVERS_GENERIC
3061	select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3062	bool
3063
3064config PCI_DRIVERS_LEGACY
3065	def_bool !PCI_DRIVERS_GENERIC
3066	select NO_GENERIC_PCI_IOPORT_MAP
3067
3068source "drivers/pci/Kconfig"
3069
3070#
3071# ISA support is now enabled via select.  Too many systems still have the one
3072# or other ISA chip on the board that users don't know about so don't expect
3073# users to choose the right thing ...
3074#
3075config ISA
3076	bool
3077
3078config EISA
3079	bool "EISA support"
3080	depends on HW_HAS_EISA
3081	select ISA
3082	select GENERIC_ISA_DMA
3083	---help---
3084	  The Extended Industry Standard Architecture (EISA) bus was
3085	  developed as an open alternative to the IBM MicroChannel bus.
3086
3087	  The EISA bus provided some of the features of the IBM MicroChannel
3088	  bus while maintaining backward compatibility with cards made for
3089	  the older ISA bus.  The EISA bus saw limited use between 1988 and
3090	  1995 when it was made obsolete by the PCI bus.
3091
3092	  Say Y here if you are building a kernel for an EISA-based machine.
3093
3094	  Otherwise, say N.
3095
3096source "drivers/eisa/Kconfig"
3097
3098config TC
3099	bool "TURBOchannel support"
3100	depends on MACH_DECSTATION
3101	help
3102	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3103	  processors.  TURBOchannel programming specifications are available
3104	  at:
3105	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3106	  and:
3107	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3108	  Linux driver support status is documented at:
3109	  <http://www.linux-mips.org/wiki/DECstation>
3110
3111config MMU
3112	bool
3113	default y
3114
3115config ARCH_MMAP_RND_BITS_MIN
3116	default 12 if 64BIT
3117	default 8
3118
3119config ARCH_MMAP_RND_BITS_MAX
3120	default 18 if 64BIT
3121	default 15
3122
3123config ARCH_MMAP_RND_COMPAT_BITS_MIN
3124       default 8
3125
3126config ARCH_MMAP_RND_COMPAT_BITS_MAX
3127       default 15
3128
3129config I8253
3130	bool
3131	select CLKSRC_I8253
3132	select CLKEVT_I8253
3133	select MIPS_EXTERNAL_TIMER
3134
3135config ZONE_DMA
3136	bool
3137
3138config ZONE_DMA32
3139	bool
3140
3141source "drivers/pcmcia/Kconfig"
3142
3143config HAS_RAPIDIO
3144	bool
3145	default n
3146
3147config RAPIDIO
3148	tristate "RapidIO support"
3149	depends on HAS_RAPIDIO || PCI
3150	help
3151	  If you say Y here, the kernel will include drivers and
3152	  infrastructure code to support RapidIO interconnect devices.
3153
3154source "drivers/rapidio/Kconfig"
3155
3156endmenu
3157
3158config TRAD_SIGNALS
3159	bool
3160
3161config MIPS32_COMPAT
3162	bool
3163
3164config COMPAT
3165	bool
3166
3167config SYSVIPC_COMPAT
3168	bool
3169
3170config MIPS32_O32
3171	bool "Kernel support for o32 binaries"
3172	depends on 64BIT
3173	select ARCH_WANT_OLD_COMPAT_IPC
3174	select COMPAT
3175	select MIPS32_COMPAT
3176	select SYSVIPC_COMPAT if SYSVIPC
3177	help
3178	  Select this option if you want to run o32 binaries.  These are pure
3179	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3180	  existing binaries are in this format.
3181
3182	  If unsure, say Y.
3183
3184config MIPS32_N32
3185	bool "Kernel support for n32 binaries"
3186	depends on 64BIT
3187	select COMPAT
3188	select MIPS32_COMPAT
3189	select SYSVIPC_COMPAT if SYSVIPC
3190	help
3191	  Select this option if you want to run n32 binaries.  These are
3192	  64-bit binaries using 32-bit quantities for addressing and certain
3193	  data that would normally be 64-bit.  They are used in special
3194	  cases.
3195
3196	  If unsure, say N.
3197
3198config BINFMT_ELF32
3199	bool
3200	default y if MIPS32_O32 || MIPS32_N32
3201	select ELFCORE
3202
3203menu "Power management options"
3204
3205config ARCH_HIBERNATION_POSSIBLE
3206	def_bool y
3207	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3208
3209config ARCH_SUSPEND_POSSIBLE
3210	def_bool y
3211	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3212
3213source "kernel/power/Kconfig"
3214
3215endmenu
3216
3217config MIPS_EXTERNAL_TIMER
3218	bool
3219
3220menu "CPU Power Management"
3221
3222if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3223source "drivers/cpufreq/Kconfig"
3224endif
3225
3226source "drivers/cpuidle/Kconfig"
3227
3228endmenu
3229
3230source "drivers/firmware/Kconfig"
3231
3232source "arch/mips/kvm/Kconfig"
3233