xref: /linux/arch/mips/Kconfig (revision 71e2f4dd5a65bd8dbca0b77661e75eea471168f8)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_32BIT_OFF_T if !64BIT
6	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7	select ARCH_CLOCKSOURCE_DATA
8	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
9	select ARCH_HAS_UBSAN_SANITIZE_ALL
10	select ARCH_HAS_FORTIFY_SOURCE
11	select ARCH_SUPPORTS_UPROBES
12	select ARCH_USE_BUILTIN_BSWAP
13	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
14	select ARCH_USE_QUEUED_RWLOCKS
15	select ARCH_USE_QUEUED_SPINLOCKS
16	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
17	select ARCH_WANT_IPC_PARSE_VERSION
18	select BUILDTIME_EXTABLE_SORT
19	select CLONE_BACKWARDS
20	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
21	select CPU_PM if CPU_IDLE
22	select GENERIC_ATOMIC64 if !64BIT
23	select GENERIC_CLOCKEVENTS
24	select GENERIC_CMOS_UPDATE
25	select GENERIC_CPU_AUTOPROBE
26	select GENERIC_GETTIMEOFDAY
27	select GENERIC_IOMAP
28	select GENERIC_IRQ_PROBE
29	select GENERIC_IRQ_SHOW
30	select GENERIC_ISA_DMA if EISA
31	select GENERIC_LIB_ASHLDI3
32	select GENERIC_LIB_ASHRDI3
33	select GENERIC_LIB_CMPDI2
34	select GENERIC_LIB_LSHRDI3
35	select GENERIC_LIB_UCMPDI2
36	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
37	select GENERIC_SMP_IDLE_THREAD
38	select GENERIC_TIME_VSYSCALL
39	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
40	select HANDLE_DOMAIN_IRQ
41	select HAVE_ARCH_COMPILER_H
42	select HAVE_ARCH_JUMP_LABEL
43	select HAVE_ARCH_KGDB
44	select HAVE_ARCH_MMAP_RND_BITS if MMU
45	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
46	select HAVE_ARCH_SECCOMP_FILTER
47	select HAVE_ARCH_TRACEHOOK
48	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
49	select HAVE_ASM_MODVERSIONS
50	select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
51	select HAVE_CONTEXT_TRACKING
52	select HAVE_COPY_THREAD_TLS
53	select HAVE_C_RECORDMCOUNT
54	select HAVE_DEBUG_KMEMLEAK
55	select HAVE_DEBUG_STACKOVERFLOW
56	select HAVE_DMA_CONTIGUOUS
57	select HAVE_DYNAMIC_FTRACE
58	select HAVE_EXIT_THREAD
59	select HAVE_FAST_GUP
60	select HAVE_FTRACE_MCOUNT_RECORD
61	select HAVE_FUNCTION_GRAPH_TRACER
62	select HAVE_FUNCTION_TRACER
63	select HAVE_IDE
64	select HAVE_IOREMAP_PROT
65	select HAVE_IRQ_EXIT_ON_IRQ_STACK
66	select HAVE_IRQ_TIME_ACCOUNTING
67	select HAVE_KPROBES
68	select HAVE_KRETPROBES
69	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
70	select HAVE_MEMBLOCK_NODE_MAP
71	select HAVE_MOD_ARCH_SPECIFIC
72	select HAVE_NMI
73	select HAVE_OPROFILE
74	select HAVE_PERF_EVENTS
75	select HAVE_REGS_AND_STACK_ACCESS_API
76	select HAVE_RSEQ
77	select HAVE_STACKPROTECTOR
78	select HAVE_SYSCALL_TRACEPOINTS
79	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
80	select HAVE_GENERIC_VDSO
81	select IRQ_FORCED_THREADING
82	select ISA if EISA
83	select MODULES_USE_ELF_RELA if MODULES && 64BIT
84	select MODULES_USE_ELF_REL if MODULES
85	select PERF_USE_VMALLOC
86	select RTC_LIB
87	select SYSCTL_EXCEPTION_TRACE
88	select VIRT_TO_BUS
89	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
90
91menu "Machine selection"
92
93choice
94	prompt "System type"
95	default MIPS_GENERIC
96
97config MIPS_GENERIC
98	bool "Generic board-agnostic MIPS kernel"
99	select BOOT_RAW
100	select BUILTIN_DTB
101	select CEVT_R4K
102	select CLKSRC_MIPS_GIC
103	select COMMON_CLK
104	select CPU_MIPSR2_IRQ_VI
105	select CPU_MIPSR2_IRQ_EI
106	select CSRC_R4K
107	select DMA_PERDEV_COHERENT
108	select HAVE_PCI
109	select IRQ_MIPS_CPU
110	select LIBFDT
111	select MIPS_AUTO_PFN_OFFSET
112	select MIPS_CPU_SCACHE
113	select MIPS_GIC
114	select MIPS_L1_CACHE_SHIFT_7
115	select NO_EXCEPT_FILL
116	select PCI_DRIVERS_GENERIC
117	select PINCTRL
118	select SMP_UP if SMP
119	select SWAP_IO_SPACE
120	select SYS_HAS_CPU_MIPS32_R1
121	select SYS_HAS_CPU_MIPS32_R2
122	select SYS_HAS_CPU_MIPS32_R6
123	select SYS_HAS_CPU_MIPS64_R1
124	select SYS_HAS_CPU_MIPS64_R2
125	select SYS_HAS_CPU_MIPS64_R6
126	select SYS_SUPPORTS_32BIT_KERNEL
127	select SYS_SUPPORTS_64BIT_KERNEL
128	select SYS_SUPPORTS_BIG_ENDIAN
129	select SYS_SUPPORTS_HIGHMEM
130	select SYS_SUPPORTS_LITTLE_ENDIAN
131	select SYS_SUPPORTS_MICROMIPS
132	select SYS_SUPPORTS_MIPS_CPS
133	select SYS_SUPPORTS_MIPS16
134	select SYS_SUPPORTS_MULTITHREADING
135	select SYS_SUPPORTS_RELOCATABLE
136	select SYS_SUPPORTS_SMARTMIPS
137	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
138	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
139	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
140	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
141	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
142	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
143	select USE_OF
144	select UHI_BOOT
145	help
146	  Select this to build a kernel which aims to support multiple boards,
147	  generally using a flattened device tree passed from the bootloader
148	  using the boot protocol defined in the UHI (Unified Hosting
149	  Interface) specification.
150
151config MIPS_ALCHEMY
152	bool "Alchemy processor based machines"
153	select PHYS_ADDR_T_64BIT
154	select CEVT_R4K
155	select CSRC_R4K
156	select IRQ_MIPS_CPU
157	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
158	select SYS_HAS_CPU_MIPS32_R1
159	select SYS_SUPPORTS_32BIT_KERNEL
160	select SYS_SUPPORTS_APM_EMULATION
161	select GPIOLIB
162	select SYS_SUPPORTS_ZBOOT
163	select COMMON_CLK
164
165config AR7
166	bool "Texas Instruments AR7"
167	select BOOT_ELF32
168	select DMA_NONCOHERENT
169	select CEVT_R4K
170	select CSRC_R4K
171	select IRQ_MIPS_CPU
172	select NO_EXCEPT_FILL
173	select SWAP_IO_SPACE
174	select SYS_HAS_CPU_MIPS32_R1
175	select SYS_HAS_EARLY_PRINTK
176	select SYS_SUPPORTS_32BIT_KERNEL
177	select SYS_SUPPORTS_LITTLE_ENDIAN
178	select SYS_SUPPORTS_MIPS16
179	select SYS_SUPPORTS_ZBOOT_UART16550
180	select GPIOLIB
181	select VLYNQ
182	select HAVE_CLK
183	help
184	  Support for the Texas Instruments AR7 System-on-a-Chip
185	  family: TNETD7100, 7200 and 7300.
186
187config ATH25
188	bool "Atheros AR231x/AR531x SoC support"
189	select CEVT_R4K
190	select CSRC_R4K
191	select DMA_NONCOHERENT
192	select IRQ_MIPS_CPU
193	select IRQ_DOMAIN
194	select SYS_HAS_CPU_MIPS32_R1
195	select SYS_SUPPORTS_BIG_ENDIAN
196	select SYS_SUPPORTS_32BIT_KERNEL
197	select SYS_HAS_EARLY_PRINTK
198	help
199	  Support for Atheros AR231x and Atheros AR531x based boards
200
201config ATH79
202	bool "Atheros AR71XX/AR724X/AR913X based boards"
203	select ARCH_HAS_RESET_CONTROLLER
204	select BOOT_RAW
205	select CEVT_R4K
206	select CSRC_R4K
207	select DMA_NONCOHERENT
208	select GPIOLIB
209	select PINCTRL
210	select HAVE_CLK
211	select COMMON_CLK
212	select CLKDEV_LOOKUP
213	select IRQ_MIPS_CPU
214	select SYS_HAS_CPU_MIPS32_R2
215	select SYS_HAS_EARLY_PRINTK
216	select SYS_SUPPORTS_32BIT_KERNEL
217	select SYS_SUPPORTS_BIG_ENDIAN
218	select SYS_SUPPORTS_MIPS16
219	select SYS_SUPPORTS_ZBOOT_UART_PROM
220	select USE_OF
221	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
222	help
223	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
224
225config BMIPS_GENERIC
226	bool "Broadcom Generic BMIPS kernel"
227	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
228	select ARCH_HAS_PHYS_TO_DMA
229	select BOOT_RAW
230	select NO_EXCEPT_FILL
231	select USE_OF
232	select CEVT_R4K
233	select CSRC_R4K
234	select SYNC_R4K
235	select COMMON_CLK
236	select BCM6345_L1_IRQ
237	select BCM7038_L1_IRQ
238	select BCM7120_L2_IRQ
239	select BRCMSTB_L2_IRQ
240	select IRQ_MIPS_CPU
241	select DMA_NONCOHERENT
242	select SYS_SUPPORTS_32BIT_KERNEL
243	select SYS_SUPPORTS_LITTLE_ENDIAN
244	select SYS_SUPPORTS_BIG_ENDIAN
245	select SYS_SUPPORTS_HIGHMEM
246	select SYS_HAS_CPU_BMIPS32_3300
247	select SYS_HAS_CPU_BMIPS4350
248	select SYS_HAS_CPU_BMIPS4380
249	select SYS_HAS_CPU_BMIPS5000
250	select SWAP_IO_SPACE
251	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
252	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
253	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
254	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
255	select HARDIRQS_SW_RESEND
256	help
257	  Build a generic DT-based kernel image that boots on select
258	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
259	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
260	  must be set appropriately for your board.
261
262config BCM47XX
263	bool "Broadcom BCM47XX based boards"
264	select BOOT_RAW
265	select CEVT_R4K
266	select CSRC_R4K
267	select DMA_NONCOHERENT
268	select HAVE_PCI
269	select IRQ_MIPS_CPU
270	select SYS_HAS_CPU_MIPS32_R1
271	select NO_EXCEPT_FILL
272	select SYS_SUPPORTS_32BIT_KERNEL
273	select SYS_SUPPORTS_LITTLE_ENDIAN
274	select SYS_SUPPORTS_MIPS16
275	select SYS_SUPPORTS_ZBOOT
276	select SYS_HAS_EARLY_PRINTK
277	select USE_GENERIC_EARLY_PRINTK_8250
278	select GPIOLIB
279	select LEDS_GPIO_REGISTER
280	select BCM47XX_NVRAM
281	select BCM47XX_SPROM
282	select BCM47XX_SSB if !BCM47XX_BCMA
283	help
284	  Support for BCM47XX based boards
285
286config BCM63XX
287	bool "Broadcom BCM63XX based boards"
288	select BOOT_RAW
289	select CEVT_R4K
290	select CSRC_R4K
291	select SYNC_R4K
292	select DMA_NONCOHERENT
293	select IRQ_MIPS_CPU
294	select SYS_SUPPORTS_32BIT_KERNEL
295	select SYS_SUPPORTS_BIG_ENDIAN
296	select SYS_HAS_EARLY_PRINTK
297	select SWAP_IO_SPACE
298	select GPIOLIB
299	select HAVE_CLK
300	select MIPS_L1_CACHE_SHIFT_4
301	select CLKDEV_LOOKUP
302	help
303	  Support for BCM63XX based boards
304
305config MIPS_COBALT
306	bool "Cobalt Server"
307	select CEVT_R4K
308	select CSRC_R4K
309	select CEVT_GT641XX
310	select DMA_NONCOHERENT
311	select FORCE_PCI
312	select I8253
313	select I8259
314	select IRQ_MIPS_CPU
315	select IRQ_GT641XX
316	select PCI_GT64XXX_PCI0
317	select SYS_HAS_CPU_NEVADA
318	select SYS_HAS_EARLY_PRINTK
319	select SYS_SUPPORTS_32BIT_KERNEL
320	select SYS_SUPPORTS_64BIT_KERNEL
321	select SYS_SUPPORTS_LITTLE_ENDIAN
322	select USE_GENERIC_EARLY_PRINTK_8250
323
324config MACH_DECSTATION
325	bool "DECstations"
326	select BOOT_ELF32
327	select CEVT_DS1287
328	select CEVT_R4K if CPU_R4X00
329	select CSRC_IOASIC
330	select CSRC_R4K if CPU_R4X00
331	select CPU_DADDI_WORKAROUNDS if 64BIT
332	select CPU_R4000_WORKAROUNDS if 64BIT
333	select CPU_R4400_WORKAROUNDS if 64BIT
334	select DMA_NONCOHERENT
335	select NO_IOPORT_MAP
336	select IRQ_MIPS_CPU
337	select SYS_HAS_CPU_R3000
338	select SYS_HAS_CPU_R4X00
339	select SYS_SUPPORTS_32BIT_KERNEL
340	select SYS_SUPPORTS_64BIT_KERNEL
341	select SYS_SUPPORTS_LITTLE_ENDIAN
342	select SYS_SUPPORTS_128HZ
343	select SYS_SUPPORTS_256HZ
344	select SYS_SUPPORTS_1024HZ
345	select MIPS_L1_CACHE_SHIFT_4
346	help
347	  This enables support for DEC's MIPS based workstations.  For details
348	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
349	  DECstation porting pages on <http://decstation.unix-ag.org/>.
350
351	  If you have one of the following DECstation Models you definitely
352	  want to choose R4xx0 for the CPU Type:
353
354		DECstation 5000/50
355		DECstation 5000/150
356		DECstation 5000/260
357		DECsystem 5900/260
358
359	  otherwise choose R3000.
360
361config MACH_JAZZ
362	bool "Jazz family of machines"
363	select ARC_MEMORY
364	select ARC_PROMLIB
365	select ARCH_MIGHT_HAVE_PC_PARPORT
366	select ARCH_MIGHT_HAVE_PC_SERIO
367	select FW_ARC
368	select FW_ARC32
369	select ARCH_MAY_HAVE_PC_FDC
370	select CEVT_R4K
371	select CSRC_R4K
372	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
373	select GENERIC_ISA_DMA
374	select HAVE_PCSPKR_PLATFORM
375	select IRQ_MIPS_CPU
376	select I8253
377	select I8259
378	select ISA
379	select SYS_HAS_CPU_R4X00
380	select SYS_SUPPORTS_32BIT_KERNEL
381	select SYS_SUPPORTS_64BIT_KERNEL
382	select SYS_SUPPORTS_100HZ
383	help
384	  This a family of machines based on the MIPS R4030 chipset which was
385	  used by several vendors to build RISC/os and Windows NT workstations.
386	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
387	  Olivetti M700-10 workstations.
388
389config MACH_INGENIC
390	bool "Ingenic SoC based machines"
391	select SYS_SUPPORTS_32BIT_KERNEL
392	select SYS_SUPPORTS_LITTLE_ENDIAN
393	select SYS_SUPPORTS_ZBOOT_UART16550
394	select CPU_SUPPORTS_HUGEPAGES
395	select DMA_NONCOHERENT
396	select IRQ_MIPS_CPU
397	select PINCTRL
398	select GPIOLIB
399	select COMMON_CLK
400	select GENERIC_IRQ_CHIP
401	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
402	select USE_OF
403	select LIBFDT
404
405config LANTIQ
406	bool "Lantiq based platforms"
407	select DMA_NONCOHERENT
408	select IRQ_MIPS_CPU
409	select CEVT_R4K
410	select CSRC_R4K
411	select SYS_HAS_CPU_MIPS32_R1
412	select SYS_HAS_CPU_MIPS32_R2
413	select SYS_SUPPORTS_BIG_ENDIAN
414	select SYS_SUPPORTS_32BIT_KERNEL
415	select SYS_SUPPORTS_MIPS16
416	select SYS_SUPPORTS_MULTITHREADING
417	select SYS_SUPPORTS_VPE_LOADER
418	select SYS_HAS_EARLY_PRINTK
419	select GPIOLIB
420	select SWAP_IO_SPACE
421	select BOOT_RAW
422	select CLKDEV_LOOKUP
423	select USE_OF
424	select PINCTRL
425	select PINCTRL_LANTIQ
426	select ARCH_HAS_RESET_CONTROLLER
427	select RESET_CONTROLLER
428
429config LASAT
430	bool "LASAT Networks platforms"
431	select CEVT_R4K
432	select CRC32
433	select CSRC_R4K
434	select DMA_NONCOHERENT
435	select SYS_HAS_EARLY_PRINTK
436	select HAVE_PCI
437	select IRQ_MIPS_CPU
438	select PCI_GT64XXX_PCI0
439	select MIPS_NILE4
440	select R5000_CPU_SCACHE
441	select SYS_HAS_CPU_R5000
442	select SYS_SUPPORTS_32BIT_KERNEL
443	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
444	select SYS_SUPPORTS_LITTLE_ENDIAN
445
446config MACH_LOONGSON32
447	bool "Loongson-1 family of machines"
448	select SYS_SUPPORTS_ZBOOT
449	help
450	  This enables support for the Loongson-1 family of machines.
451
452	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
453	  the Institute of Computing Technology (ICT), Chinese Academy of
454	  Sciences (CAS).
455
456config MACH_LOONGSON2EF
457	bool "Loongson-2E/F family of machines"
458	select SYS_SUPPORTS_ZBOOT
459	help
460	  This enables the support of early Loongson-2E/F family of machines.
461
462config MACH_LOONGSON64
463	bool "Loongson-2/3 GSx64 family of machines"
464	select SYS_SUPPORTS_ZBOOT
465	help
466	  This enables the support of Loongson-2/3 family of processors with
467	  GSx64 microarchitecture.
468
469config MACH_PISTACHIO
470	bool "IMG Pistachio SoC based boards"
471	select BOOT_ELF32
472	select BOOT_RAW
473	select CEVT_R4K
474	select CLKSRC_MIPS_GIC
475	select COMMON_CLK
476	select CSRC_R4K
477	select DMA_NONCOHERENT
478	select GPIOLIB
479	select IRQ_MIPS_CPU
480	select LIBFDT
481	select MFD_SYSCON
482	select MIPS_CPU_SCACHE
483	select MIPS_GIC
484	select PINCTRL
485	select REGULATOR
486	select SYS_HAS_CPU_MIPS32_R2
487	select SYS_SUPPORTS_32BIT_KERNEL
488	select SYS_SUPPORTS_LITTLE_ENDIAN
489	select SYS_SUPPORTS_MIPS_CPS
490	select SYS_SUPPORTS_MULTITHREADING
491	select SYS_SUPPORTS_RELOCATABLE
492	select SYS_SUPPORTS_ZBOOT
493	select SYS_HAS_EARLY_PRINTK
494	select USE_GENERIC_EARLY_PRINTK_8250
495	select USE_OF
496	help
497	  This enables support for the IMG Pistachio SoC platform.
498
499config MIPS_MALTA
500	bool "MIPS Malta board"
501	select ARCH_MAY_HAVE_PC_FDC
502	select ARCH_MIGHT_HAVE_PC_PARPORT
503	select ARCH_MIGHT_HAVE_PC_SERIO
504	select BOOT_ELF32
505	select BOOT_RAW
506	select BUILTIN_DTB
507	select CEVT_R4K
508	select CLKSRC_MIPS_GIC
509	select COMMON_CLK
510	select CSRC_R4K
511	select DMA_MAYBE_COHERENT
512	select GENERIC_ISA_DMA
513	select HAVE_PCSPKR_PLATFORM
514	select HAVE_PCI
515	select I8253
516	select I8259
517	select IRQ_MIPS_CPU
518	select LIBFDT
519	select MIPS_BONITO64
520	select MIPS_CPU_SCACHE
521	select MIPS_GIC
522	select MIPS_L1_CACHE_SHIFT_6
523	select MIPS_MSC
524	select PCI_GT64XXX_PCI0
525	select SMP_UP if SMP
526	select SWAP_IO_SPACE
527	select SYS_HAS_CPU_MIPS32_R1
528	select SYS_HAS_CPU_MIPS32_R2
529	select SYS_HAS_CPU_MIPS32_R3_5
530	select SYS_HAS_CPU_MIPS32_R5
531	select SYS_HAS_CPU_MIPS32_R6
532	select SYS_HAS_CPU_MIPS64_R1
533	select SYS_HAS_CPU_MIPS64_R2
534	select SYS_HAS_CPU_MIPS64_R6
535	select SYS_HAS_CPU_NEVADA
536	select SYS_HAS_CPU_RM7000
537	select SYS_SUPPORTS_32BIT_KERNEL
538	select SYS_SUPPORTS_64BIT_KERNEL
539	select SYS_SUPPORTS_BIG_ENDIAN
540	select SYS_SUPPORTS_HIGHMEM
541	select SYS_SUPPORTS_LITTLE_ENDIAN
542	select SYS_SUPPORTS_MICROMIPS
543	select SYS_SUPPORTS_MIPS16
544	select SYS_SUPPORTS_MIPS_CMP
545	select SYS_SUPPORTS_MIPS_CPS
546	select SYS_SUPPORTS_MULTITHREADING
547	select SYS_SUPPORTS_RELOCATABLE
548	select SYS_SUPPORTS_SMARTMIPS
549	select SYS_SUPPORTS_VPE_LOADER
550	select SYS_SUPPORTS_ZBOOT
551	select USE_OF
552	select ZONE_DMA32 if 64BIT
553	help
554	  This enables support for the MIPS Technologies Malta evaluation
555	  board.
556
557config MACH_PIC32
558	bool "Microchip PIC32 Family"
559	help
560	  This enables support for the Microchip PIC32 family of platforms.
561
562	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
563	  microcontrollers.
564
565config NEC_MARKEINS
566	bool "NEC EMMA2RH Mark-eins board"
567	select SOC_EMMA2RH
568	select HAVE_PCI
569	help
570	  This enables support for the NEC Electronics Mark-eins boards.
571
572config MACH_VR41XX
573	bool "NEC VR4100 series based machines"
574	select CEVT_R4K
575	select CSRC_R4K
576	select SYS_HAS_CPU_VR41XX
577	select SYS_SUPPORTS_MIPS16
578	select GPIOLIB
579
580config NXP_STB220
581	bool "NXP STB220 board"
582	select SOC_PNX833X
583	help
584	  Support for NXP Semiconductors STB220 Development Board.
585
586config NXP_STB225
587	bool "NXP 225 board"
588	select SOC_PNX833X
589	select SOC_PNX8335
590	help
591	  Support for NXP Semiconductors STB225 Development Board.
592
593config PMC_MSP
594	bool "PMC-Sierra MSP chipsets"
595	select CEVT_R4K
596	select CSRC_R4K
597	select DMA_NONCOHERENT
598	select SWAP_IO_SPACE
599	select NO_EXCEPT_FILL
600	select BOOT_RAW
601	select SYS_HAS_CPU_MIPS32_R1
602	select SYS_HAS_CPU_MIPS32_R2
603	select SYS_SUPPORTS_32BIT_KERNEL
604	select SYS_SUPPORTS_BIG_ENDIAN
605	select SYS_SUPPORTS_MIPS16
606	select IRQ_MIPS_CPU
607	select SERIAL_8250
608	select SERIAL_8250_CONSOLE
609	select USB_EHCI_BIG_ENDIAN_MMIO
610	select USB_EHCI_BIG_ENDIAN_DESC
611	help
612	  This adds support for the PMC-Sierra family of Multi-Service
613	  Processor System-On-A-Chips.  These parts include a number
614	  of integrated peripherals, interfaces and DSPs in addition to
615	  a variety of MIPS cores.
616
617config RALINK
618	bool "Ralink based machines"
619	select CEVT_R4K
620	select CSRC_R4K
621	select BOOT_RAW
622	select DMA_NONCOHERENT
623	select IRQ_MIPS_CPU
624	select USE_OF
625	select SYS_HAS_CPU_MIPS32_R1
626	select SYS_HAS_CPU_MIPS32_R2
627	select SYS_SUPPORTS_32BIT_KERNEL
628	select SYS_SUPPORTS_LITTLE_ENDIAN
629	select SYS_SUPPORTS_MIPS16
630	select SYS_HAS_EARLY_PRINTK
631	select CLKDEV_LOOKUP
632	select ARCH_HAS_RESET_CONTROLLER
633	select RESET_CONTROLLER
634
635config SGI_IP22
636	bool "SGI IP22 (Indy/Indigo2)"
637	select ARC_MEMORY
638	select ARC_PROMLIB
639	select FW_ARC
640	select FW_ARC32
641	select ARCH_MIGHT_HAVE_PC_SERIO
642	select BOOT_ELF32
643	select CEVT_R4K
644	select CSRC_R4K
645	select DEFAULT_SGI_PARTITION
646	select DMA_NONCOHERENT
647	select HAVE_EISA
648	select I8253
649	select I8259
650	select IP22_CPU_SCACHE
651	select IRQ_MIPS_CPU
652	select GENERIC_ISA_DMA_SUPPORT_BROKEN
653	select SGI_HAS_I8042
654	select SGI_HAS_INDYDOG
655	select SGI_HAS_HAL2
656	select SGI_HAS_SEEQ
657	select SGI_HAS_WD93
658	select SGI_HAS_ZILOG
659	select SWAP_IO_SPACE
660	select SYS_HAS_CPU_R4X00
661	select SYS_HAS_CPU_R5000
662	select SYS_HAS_EARLY_PRINTK
663	select SYS_SUPPORTS_32BIT_KERNEL
664	select SYS_SUPPORTS_64BIT_KERNEL
665	select SYS_SUPPORTS_BIG_ENDIAN
666	select MIPS_L1_CACHE_SHIFT_7
667	help
668	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
669	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
670	  that runs on these, say Y here.
671
672config SGI_IP27
673	bool "SGI IP27 (Origin200/2000)"
674	select ARCH_HAS_PHYS_TO_DMA
675	select ARCH_SPARSEMEM_ENABLE
676	select FW_ARC
677	select FW_ARC64
678	select ARC_CMDLINE_ONLY
679	select BOOT_ELF64
680	select DEFAULT_SGI_PARTITION
681	select SYS_HAS_EARLY_PRINTK
682	select HAVE_PCI
683	select IRQ_MIPS_CPU
684	select IRQ_DOMAIN_HIERARCHY
685	select NR_CPUS_DEFAULT_64
686	select PCI_DRIVERS_GENERIC
687	select PCI_XTALK_BRIDGE
688	select SYS_HAS_CPU_R10000
689	select SYS_SUPPORTS_64BIT_KERNEL
690	select SYS_SUPPORTS_BIG_ENDIAN
691	select SYS_SUPPORTS_NUMA
692	select SYS_SUPPORTS_SMP
693	select MIPS_L1_CACHE_SHIFT_7
694	help
695	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
696	  workstations.  To compile a Linux kernel that runs on these, say Y
697	  here.
698
699config SGI_IP28
700	bool "SGI IP28 (Indigo2 R10k)"
701	select ARC_MEMORY
702	select ARC_PROMLIB
703	select FW_ARC
704	select FW_ARC64
705	select ARCH_MIGHT_HAVE_PC_SERIO
706	select BOOT_ELF64
707	select CEVT_R4K
708	select CSRC_R4K
709	select DEFAULT_SGI_PARTITION
710	select DMA_NONCOHERENT
711	select GENERIC_ISA_DMA_SUPPORT_BROKEN
712	select IRQ_MIPS_CPU
713	select HAVE_EISA
714	select I8253
715	select I8259
716	select SGI_HAS_I8042
717	select SGI_HAS_INDYDOG
718	select SGI_HAS_HAL2
719	select SGI_HAS_SEEQ
720	select SGI_HAS_WD93
721	select SGI_HAS_ZILOG
722	select SWAP_IO_SPACE
723	select SYS_HAS_CPU_R10000
724	select SYS_HAS_EARLY_PRINTK
725	select SYS_SUPPORTS_64BIT_KERNEL
726	select SYS_SUPPORTS_BIG_ENDIAN
727	select MIPS_L1_CACHE_SHIFT_7
728	help
729	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
730	  kernel that runs on these, say Y here.
731
732config SGI_IP32
733	bool "SGI IP32 (O2)"
734	select ARC_MEMORY
735	select ARC_PROMLIB
736	select ARCH_HAS_PHYS_TO_DMA
737	select FW_ARC
738	select FW_ARC32
739	select BOOT_ELF32
740	select CEVT_R4K
741	select CSRC_R4K
742	select DMA_NONCOHERENT
743	select HAVE_PCI
744	select IRQ_MIPS_CPU
745	select R5000_CPU_SCACHE
746	select RM7000_CPU_SCACHE
747	select SYS_HAS_CPU_R5000
748	select SYS_HAS_CPU_R10000 if BROKEN
749	select SYS_HAS_CPU_RM7000
750	select SYS_HAS_CPU_NEVADA
751	select SYS_SUPPORTS_64BIT_KERNEL
752	select SYS_SUPPORTS_BIG_ENDIAN
753	help
754	  If you want this kernel to run on SGI O2 workstation, say Y here.
755
756config SIBYTE_CRHINE
757	bool "Sibyte BCM91120C-CRhine"
758	select BOOT_ELF32
759	select SIBYTE_BCM1120
760	select SWAP_IO_SPACE
761	select SYS_HAS_CPU_SB1
762	select SYS_SUPPORTS_BIG_ENDIAN
763	select SYS_SUPPORTS_LITTLE_ENDIAN
764
765config SIBYTE_CARMEL
766	bool "Sibyte BCM91120x-Carmel"
767	select BOOT_ELF32
768	select SIBYTE_BCM1120
769	select SWAP_IO_SPACE
770	select SYS_HAS_CPU_SB1
771	select SYS_SUPPORTS_BIG_ENDIAN
772	select SYS_SUPPORTS_LITTLE_ENDIAN
773
774config SIBYTE_CRHONE
775	bool "Sibyte BCM91125C-CRhone"
776	select BOOT_ELF32
777	select SIBYTE_BCM1125
778	select SWAP_IO_SPACE
779	select SYS_HAS_CPU_SB1
780	select SYS_SUPPORTS_BIG_ENDIAN
781	select SYS_SUPPORTS_HIGHMEM
782	select SYS_SUPPORTS_LITTLE_ENDIAN
783
784config SIBYTE_RHONE
785	bool "Sibyte BCM91125E-Rhone"
786	select BOOT_ELF32
787	select SIBYTE_BCM1125H
788	select SWAP_IO_SPACE
789	select SYS_HAS_CPU_SB1
790	select SYS_SUPPORTS_BIG_ENDIAN
791	select SYS_SUPPORTS_LITTLE_ENDIAN
792
793config SIBYTE_SWARM
794	bool "Sibyte BCM91250A-SWARM"
795	select BOOT_ELF32
796	select HAVE_PATA_PLATFORM
797	select SIBYTE_SB1250
798	select SWAP_IO_SPACE
799	select SYS_HAS_CPU_SB1
800	select SYS_SUPPORTS_BIG_ENDIAN
801	select SYS_SUPPORTS_HIGHMEM
802	select SYS_SUPPORTS_LITTLE_ENDIAN
803	select ZONE_DMA32 if 64BIT
804	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
805
806config SIBYTE_LITTLESUR
807	bool "Sibyte BCM91250C2-LittleSur"
808	select BOOT_ELF32
809	select HAVE_PATA_PLATFORM
810	select SIBYTE_SB1250
811	select SWAP_IO_SPACE
812	select SYS_HAS_CPU_SB1
813	select SYS_SUPPORTS_BIG_ENDIAN
814	select SYS_SUPPORTS_HIGHMEM
815	select SYS_SUPPORTS_LITTLE_ENDIAN
816	select ZONE_DMA32 if 64BIT
817
818config SIBYTE_SENTOSA
819	bool "Sibyte BCM91250E-Sentosa"
820	select BOOT_ELF32
821	select SIBYTE_SB1250
822	select SWAP_IO_SPACE
823	select SYS_HAS_CPU_SB1
824	select SYS_SUPPORTS_BIG_ENDIAN
825	select SYS_SUPPORTS_LITTLE_ENDIAN
826	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
827
828config SIBYTE_BIGSUR
829	bool "Sibyte BCM91480B-BigSur"
830	select BOOT_ELF32
831	select NR_CPUS_DEFAULT_4
832	select SIBYTE_BCM1x80
833	select SWAP_IO_SPACE
834	select SYS_HAS_CPU_SB1
835	select SYS_SUPPORTS_BIG_ENDIAN
836	select SYS_SUPPORTS_HIGHMEM
837	select SYS_SUPPORTS_LITTLE_ENDIAN
838	select ZONE_DMA32 if 64BIT
839	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
840
841config SNI_RM
842	bool "SNI RM200/300/400"
843	select ARC_MEMORY
844	select ARC_PROMLIB
845	select FW_ARC if CPU_LITTLE_ENDIAN
846	select FW_ARC32 if CPU_LITTLE_ENDIAN
847	select FW_SNIPROM if CPU_BIG_ENDIAN
848	select ARCH_MAY_HAVE_PC_FDC
849	select ARCH_MIGHT_HAVE_PC_PARPORT
850	select ARCH_MIGHT_HAVE_PC_SERIO
851	select BOOT_ELF32
852	select CEVT_R4K
853	select CSRC_R4K
854	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
855	select DMA_NONCOHERENT
856	select GENERIC_ISA_DMA
857	select HAVE_EISA
858	select HAVE_PCSPKR_PLATFORM
859	select HAVE_PCI
860	select IRQ_MIPS_CPU
861	select I8253
862	select I8259
863	select ISA
864	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
865	select SYS_HAS_CPU_R4X00
866	select SYS_HAS_CPU_R5000
867	select SYS_HAS_CPU_R10000
868	select R5000_CPU_SCACHE
869	select SYS_HAS_EARLY_PRINTK
870	select SYS_SUPPORTS_32BIT_KERNEL
871	select SYS_SUPPORTS_64BIT_KERNEL
872	select SYS_SUPPORTS_BIG_ENDIAN
873	select SYS_SUPPORTS_HIGHMEM
874	select SYS_SUPPORTS_LITTLE_ENDIAN
875	help
876	  The SNI RM200/300/400 are MIPS-based machines manufactured by
877	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
878	  Technology and now in turn merged with Fujitsu.  Say Y here to
879	  support this machine type.
880
881config MACH_TX39XX
882	bool "Toshiba TX39 series based machines"
883
884config MACH_TX49XX
885	bool "Toshiba TX49 series based machines"
886
887config MIKROTIK_RB532
888	bool "Mikrotik RB532 boards"
889	select CEVT_R4K
890	select CSRC_R4K
891	select DMA_NONCOHERENT
892	select HAVE_PCI
893	select IRQ_MIPS_CPU
894	select SYS_HAS_CPU_MIPS32_R1
895	select SYS_SUPPORTS_32BIT_KERNEL
896	select SYS_SUPPORTS_LITTLE_ENDIAN
897	select SWAP_IO_SPACE
898	select BOOT_RAW
899	select GPIOLIB
900	select MIPS_L1_CACHE_SHIFT_4
901	help
902	  Support the Mikrotik(tm) RouterBoard 532 series,
903	  based on the IDT RC32434 SoC.
904
905config CAVIUM_OCTEON_SOC
906	bool "Cavium Networks Octeon SoC based boards"
907	select CEVT_R4K
908	select ARCH_HAS_PHYS_TO_DMA
909	select HAVE_RAPIDIO
910	select PHYS_ADDR_T_64BIT
911	select SYS_SUPPORTS_64BIT_KERNEL
912	select SYS_SUPPORTS_BIG_ENDIAN
913	select EDAC_SUPPORT
914	select EDAC_ATOMIC_SCRUB
915	select SYS_SUPPORTS_LITTLE_ENDIAN
916	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
917	select SYS_HAS_EARLY_PRINTK
918	select SYS_HAS_CPU_CAVIUM_OCTEON
919	select HAVE_PCI
920	select ZONE_DMA32
921	select HOLES_IN_ZONE
922	select GPIOLIB
923	select LIBFDT
924	select USE_OF
925	select ARCH_SPARSEMEM_ENABLE
926	select SYS_SUPPORTS_SMP
927	select NR_CPUS_DEFAULT_64
928	select MIPS_NR_CPU_NR_MAP_1024
929	select BUILTIN_DTB
930	select MTD_COMPLEX_MAPPINGS
931	select SWIOTLB
932	select SYS_SUPPORTS_RELOCATABLE
933	help
934	  This option supports all of the Octeon reference boards from Cavium
935	  Networks. It builds a kernel that dynamically determines the Octeon
936	  CPU type and supports all known board reference implementations.
937	  Some of the supported boards are:
938		EBT3000
939		EBH3000
940		EBH3100
941		Thunder
942		Kodama
943		Hikari
944	  Say Y here for most Octeon reference boards.
945
946config NLM_XLR_BOARD
947	bool "Netlogic XLR/XLS based systems"
948	select BOOT_ELF32
949	select NLM_COMMON
950	select SYS_HAS_CPU_XLR
951	select SYS_SUPPORTS_SMP
952	select HAVE_PCI
953	select SWAP_IO_SPACE
954	select SYS_SUPPORTS_32BIT_KERNEL
955	select SYS_SUPPORTS_64BIT_KERNEL
956	select PHYS_ADDR_T_64BIT
957	select SYS_SUPPORTS_BIG_ENDIAN
958	select SYS_SUPPORTS_HIGHMEM
959	select NR_CPUS_DEFAULT_32
960	select CEVT_R4K
961	select CSRC_R4K
962	select IRQ_MIPS_CPU
963	select ZONE_DMA32 if 64BIT
964	select SYNC_R4K
965	select SYS_HAS_EARLY_PRINTK
966	select SYS_SUPPORTS_ZBOOT
967	select SYS_SUPPORTS_ZBOOT_UART16550
968	help
969	  Support for systems based on Netlogic XLR and XLS processors.
970	  Say Y here if you have a XLR or XLS based board.
971
972config NLM_XLP_BOARD
973	bool "Netlogic XLP based systems"
974	select BOOT_ELF32
975	select NLM_COMMON
976	select SYS_HAS_CPU_XLP
977	select SYS_SUPPORTS_SMP
978	select HAVE_PCI
979	select SYS_SUPPORTS_32BIT_KERNEL
980	select SYS_SUPPORTS_64BIT_KERNEL
981	select PHYS_ADDR_T_64BIT
982	select GPIOLIB
983	select SYS_SUPPORTS_BIG_ENDIAN
984	select SYS_SUPPORTS_LITTLE_ENDIAN
985	select SYS_SUPPORTS_HIGHMEM
986	select NR_CPUS_DEFAULT_32
987	select CEVT_R4K
988	select CSRC_R4K
989	select IRQ_MIPS_CPU
990	select ZONE_DMA32 if 64BIT
991	select SYNC_R4K
992	select SYS_HAS_EARLY_PRINTK
993	select USE_OF
994	select SYS_SUPPORTS_ZBOOT
995	select SYS_SUPPORTS_ZBOOT_UART16550
996	help
997	  This board is based on Netlogic XLP Processor.
998	  Say Y here if you have a XLP based board.
999
1000config MIPS_PARAVIRT
1001	bool "Para-Virtualized guest system"
1002	select CEVT_R4K
1003	select CSRC_R4K
1004	select SYS_SUPPORTS_64BIT_KERNEL
1005	select SYS_SUPPORTS_32BIT_KERNEL
1006	select SYS_SUPPORTS_BIG_ENDIAN
1007	select SYS_SUPPORTS_SMP
1008	select NR_CPUS_DEFAULT_4
1009	select SYS_HAS_EARLY_PRINTK
1010	select SYS_HAS_CPU_MIPS32_R2
1011	select SYS_HAS_CPU_MIPS64_R2
1012	select SYS_HAS_CPU_CAVIUM_OCTEON
1013	select HAVE_PCI
1014	select SWAP_IO_SPACE
1015	help
1016	  This option supports guest running under ????
1017
1018endchoice
1019
1020source "arch/mips/alchemy/Kconfig"
1021source "arch/mips/ath25/Kconfig"
1022source "arch/mips/ath79/Kconfig"
1023source "arch/mips/bcm47xx/Kconfig"
1024source "arch/mips/bcm63xx/Kconfig"
1025source "arch/mips/bmips/Kconfig"
1026source "arch/mips/generic/Kconfig"
1027source "arch/mips/jazz/Kconfig"
1028source "arch/mips/jz4740/Kconfig"
1029source "arch/mips/lantiq/Kconfig"
1030source "arch/mips/lasat/Kconfig"
1031source "arch/mips/pic32/Kconfig"
1032source "arch/mips/pistachio/Kconfig"
1033source "arch/mips/pmcs-msp71xx/Kconfig"
1034source "arch/mips/ralink/Kconfig"
1035source "arch/mips/sgi-ip27/Kconfig"
1036source "arch/mips/sibyte/Kconfig"
1037source "arch/mips/txx9/Kconfig"
1038source "arch/mips/vr41xx/Kconfig"
1039source "arch/mips/cavium-octeon/Kconfig"
1040source "arch/mips/loongson2ef/Kconfig"
1041source "arch/mips/loongson32/Kconfig"
1042source "arch/mips/loongson64/Kconfig"
1043source "arch/mips/netlogic/Kconfig"
1044source "arch/mips/paravirt/Kconfig"
1045
1046endmenu
1047
1048config GENERIC_HWEIGHT
1049	bool
1050	default y
1051
1052config GENERIC_CALIBRATE_DELAY
1053	bool
1054	default y
1055
1056config SCHED_OMIT_FRAME_POINTER
1057	bool
1058	default y
1059
1060#
1061# Select some configuration options automatically based on user selections.
1062#
1063config FW_ARC
1064	bool
1065
1066config ARCH_MAY_HAVE_PC_FDC
1067	bool
1068
1069config BOOT_RAW
1070	bool
1071
1072config CEVT_BCM1480
1073	bool
1074
1075config CEVT_DS1287
1076	bool
1077
1078config CEVT_GT641XX
1079	bool
1080
1081config CEVT_R4K
1082	bool
1083
1084config CEVT_SB1250
1085	bool
1086
1087config CEVT_TXX9
1088	bool
1089
1090config CSRC_BCM1480
1091	bool
1092
1093config CSRC_IOASIC
1094	bool
1095
1096config CSRC_R4K
1097	bool
1098
1099config CSRC_SB1250
1100	bool
1101
1102config MIPS_CLOCK_VSYSCALL
1103	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1104
1105config GPIO_TXX9
1106	select GPIOLIB
1107	bool
1108
1109config FW_CFE
1110	bool
1111
1112config ARCH_SUPPORTS_UPROBES
1113	bool
1114
1115config DMA_MAYBE_COHERENT
1116	select ARCH_HAS_DMA_COHERENCE_H
1117	select DMA_NONCOHERENT
1118	bool
1119
1120config DMA_PERDEV_COHERENT
1121	bool
1122	select ARCH_HAS_SETUP_DMA_OPS
1123	select DMA_NONCOHERENT
1124
1125config DMA_NONCOHERENT
1126	bool
1127	#
1128	# MIPS allows mixing "slightly different" Cacheability and Coherency
1129	# Attribute bits.  It is believed that the uncached access through
1130	# KSEG1 and the implementation specific "uncached accelerated" used
1131	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1132	# significant advantages.
1133	#
1134	select ARCH_HAS_DMA_WRITE_COMBINE
1135	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1136	select ARCH_HAS_UNCACHED_SEGMENT
1137	select NEED_DMA_MAP_STATE
1138	select ARCH_HAS_DMA_COHERENT_TO_PFN
1139	select DMA_NONCOHERENT_CACHE_SYNC
1140
1141config SYS_HAS_EARLY_PRINTK
1142	bool
1143
1144config SYS_SUPPORTS_HOTPLUG_CPU
1145	bool
1146
1147config MIPS_BONITO64
1148	bool
1149
1150config MIPS_MSC
1151	bool
1152
1153config MIPS_NILE4
1154	bool
1155
1156config SYNC_R4K
1157	bool
1158
1159config MIPS_MACHINE
1160	def_bool n
1161
1162config NO_IOPORT_MAP
1163	def_bool n
1164
1165config GENERIC_CSUM
1166	bool
1167	default y if !CPU_HAS_LOAD_STORE_LR
1168
1169config GENERIC_ISA_DMA
1170	bool
1171	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1172	select ISA_DMA_API
1173
1174config GENERIC_ISA_DMA_SUPPORT_BROKEN
1175	bool
1176	select GENERIC_ISA_DMA
1177
1178config ISA_DMA_API
1179	bool
1180
1181config HOLES_IN_ZONE
1182	bool
1183
1184config SYS_SUPPORTS_RELOCATABLE
1185	bool
1186	help
1187	  Selected if the platform supports relocating the kernel.
1188	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1189	  to allow access to command line and entropy sources.
1190
1191config MIPS_CBPF_JIT
1192	def_bool y
1193	depends on BPF_JIT && HAVE_CBPF_JIT
1194
1195config MIPS_EBPF_JIT
1196	def_bool y
1197	depends on BPF_JIT && HAVE_EBPF_JIT
1198
1199
1200#
1201# Endianness selection.  Sufficiently obscure so many users don't know what to
1202# answer,so we try hard to limit the available choices.  Also the use of a
1203# choice statement should be more obvious to the user.
1204#
1205choice
1206	prompt "Endianness selection"
1207	help
1208	  Some MIPS machines can be configured for either little or big endian
1209	  byte order. These modes require different kernels and a different
1210	  Linux distribution.  In general there is one preferred byteorder for a
1211	  particular system but some systems are just as commonly used in the
1212	  one or the other endianness.
1213
1214config CPU_BIG_ENDIAN
1215	bool "Big endian"
1216	depends on SYS_SUPPORTS_BIG_ENDIAN
1217
1218config CPU_LITTLE_ENDIAN
1219	bool "Little endian"
1220	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1221
1222endchoice
1223
1224config EXPORT_UASM
1225	bool
1226
1227config SYS_SUPPORTS_APM_EMULATION
1228	bool
1229
1230config SYS_SUPPORTS_BIG_ENDIAN
1231	bool
1232
1233config SYS_SUPPORTS_LITTLE_ENDIAN
1234	bool
1235
1236config SYS_SUPPORTS_HUGETLBFS
1237	bool
1238	depends on CPU_SUPPORTS_HUGEPAGES
1239	default y
1240
1241config MIPS_HUGE_TLB_SUPPORT
1242	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1243
1244config IRQ_CPU_RM7K
1245	bool
1246
1247config IRQ_MSP_SLP
1248	bool
1249
1250config IRQ_MSP_CIC
1251	bool
1252
1253config IRQ_TXX9
1254	bool
1255
1256config IRQ_GT641XX
1257	bool
1258
1259config PCI_GT64XXX_PCI0
1260	bool
1261
1262config PCI_XTALK_BRIDGE
1263	bool
1264
1265config NO_EXCEPT_FILL
1266	bool
1267
1268config SOC_EMMA2RH
1269	bool
1270	select CEVT_R4K
1271	select CSRC_R4K
1272	select DMA_NONCOHERENT
1273	select IRQ_MIPS_CPU
1274	select SWAP_IO_SPACE
1275	select SYS_HAS_CPU_R5500
1276	select SYS_SUPPORTS_32BIT_KERNEL
1277	select SYS_SUPPORTS_64BIT_KERNEL
1278	select SYS_SUPPORTS_BIG_ENDIAN
1279
1280config SOC_PNX833X
1281	bool
1282	select CEVT_R4K
1283	select CSRC_R4K
1284	select IRQ_MIPS_CPU
1285	select DMA_NONCOHERENT
1286	select SYS_HAS_CPU_MIPS32_R2
1287	select SYS_SUPPORTS_32BIT_KERNEL
1288	select SYS_SUPPORTS_LITTLE_ENDIAN
1289	select SYS_SUPPORTS_BIG_ENDIAN
1290	select SYS_SUPPORTS_MIPS16
1291	select CPU_MIPSR2_IRQ_VI
1292
1293config SOC_PNX8335
1294	bool
1295	select SOC_PNX833X
1296
1297config MIPS_SPRAM
1298	bool
1299
1300config SWAP_IO_SPACE
1301	bool
1302
1303config SGI_HAS_INDYDOG
1304	bool
1305
1306config SGI_HAS_HAL2
1307	bool
1308
1309config SGI_HAS_SEEQ
1310	bool
1311
1312config SGI_HAS_WD93
1313	bool
1314
1315config SGI_HAS_ZILOG
1316	bool
1317
1318config SGI_HAS_I8042
1319	bool
1320
1321config DEFAULT_SGI_PARTITION
1322	bool
1323
1324config FW_ARC32
1325	bool
1326
1327config FW_SNIPROM
1328	bool
1329
1330config BOOT_ELF32
1331	bool
1332
1333config MIPS_L1_CACHE_SHIFT_4
1334	bool
1335
1336config MIPS_L1_CACHE_SHIFT_5
1337	bool
1338
1339config MIPS_L1_CACHE_SHIFT_6
1340	bool
1341
1342config MIPS_L1_CACHE_SHIFT_7
1343	bool
1344
1345config MIPS_L1_CACHE_SHIFT
1346	int
1347	default "7" if MIPS_L1_CACHE_SHIFT_7
1348	default "6" if MIPS_L1_CACHE_SHIFT_6
1349	default "5" if MIPS_L1_CACHE_SHIFT_5
1350	default "4" if MIPS_L1_CACHE_SHIFT_4
1351	default "5"
1352
1353config HAVE_STD_PC_SERIAL_PORT
1354	bool
1355
1356config ARC_CMDLINE_ONLY
1357	bool
1358
1359config ARC_CONSOLE
1360	bool "ARC console support"
1361	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1362
1363config ARC_MEMORY
1364	bool
1365
1366config ARC_PROMLIB
1367	bool
1368
1369config FW_ARC64
1370	bool
1371
1372config BOOT_ELF64
1373	bool
1374
1375menu "CPU selection"
1376
1377choice
1378	prompt "CPU type"
1379	default CPU_R4X00
1380
1381config CPU_LOONGSON64
1382	bool "Loongson GSx64 CPU"
1383	depends on SYS_HAS_CPU_LOONGSON64
1384	select ARCH_HAS_PHYS_TO_DMA
1385	select CPU_SUPPORTS_64BIT_KERNEL
1386	select CPU_SUPPORTS_HIGHMEM
1387	select CPU_SUPPORTS_HUGEPAGES
1388	select CPU_SUPPORTS_MSA
1389	select CPU_HAS_LOAD_STORE_LR
1390	select WEAK_ORDERING
1391	select WEAK_REORDERING_BEYOND_LLSC
1392	select MIPS_ASID_BITS_VARIABLE
1393	select MIPS_PGD_C0_CONTEXT
1394	select MIPS_L1_CACHE_SHIFT_6
1395	select GPIOLIB
1396	select SWIOTLB
1397	help
1398		The Loongson GSx64 series of processor cores implements the
1399		MIPS64R2 instruction set with many extensions.
1400
1401config LOONGSON64_ENHANCEMENT
1402	bool "New Loongson GSx64E CPU Enhancements"
1403	default n
1404	select CPU_MIPSR2
1405	select CPU_HAS_PREFETCH
1406	depends on CPU_LOONGSON64
1407	help
1408	  New Loongson GSx64E cores (since Loongson-3A R2, as opposed to Loongson-3A
1409	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1410	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1411	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1412	  Fast TLB refill support, etc.
1413
1414	  This option enable those enhancements which are not probed at run
1415	  time. If you want a generic kernel to run on all Loongson 3 machines,
1416	  please say 'N' here. If you want a high-performance kernel to run on
1417	  new Loongson 3 machines only, please say 'Y' here.
1418
1419config CPU_LOONGSON3_WORKAROUNDS
1420	bool "Old Loongson 3 LLSC Workarounds"
1421	default y if SMP
1422	depends on CPU_LOONGSON64
1423	help
1424	  Loongson 3 processors have the llsc issues which require workarounds.
1425	  Without workarounds the system may hang unexpectedly.
1426
1427	  Newer Loongson 3 will fix these issues and no workarounds are needed.
1428	  The workarounds have no significant side effect on them but may
1429	  decrease the performance of the system so this option should be
1430	  disabled unless the kernel is intended to be run on old systems.
1431
1432	  If unsure, please say Y.
1433
1434config CPU_LOONGSON2E
1435	bool "Loongson 2E"
1436	depends on SYS_HAS_CPU_LOONGSON2E
1437	select CPU_LOONGSON2EF
1438	help
1439	  The Loongson 2E processor implements the MIPS III instruction set
1440	  with many extensions.
1441
1442	  It has an internal FPGA northbridge, which is compatible to
1443	  bonito64.
1444
1445config CPU_LOONGSON2F
1446	bool "Loongson 2F"
1447	depends on SYS_HAS_CPU_LOONGSON2F
1448	select CPU_LOONGSON2EF
1449	select GPIOLIB
1450	help
1451	  The Loongson 2F processor implements the MIPS III instruction set
1452	  with many extensions.
1453
1454	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1455	  have a similar programming interface with FPGA northbridge used in
1456	  Loongson2E.
1457
1458config CPU_LOONGSON1B
1459	bool "Loongson 1B"
1460	depends on SYS_HAS_CPU_LOONGSON1B
1461	select CPU_LOONGSON1
1462	select LEDS_GPIO_REGISTER
1463	help
1464	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1465	  Release 1 instruction set and part of the MIPS32 Release 2
1466	  instruction set.
1467
1468config CPU_LOONGSON1C
1469	bool "Loongson 1C"
1470	depends on SYS_HAS_CPU_LOONGSON1C
1471	select CPU_LOONGSON1
1472	select LEDS_GPIO_REGISTER
1473	help
1474	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1475	  Release 1 instruction set and part of the MIPS32 Release 2
1476	  instruction set.
1477
1478config CPU_MIPS32_R1
1479	bool "MIPS32 Release 1"
1480	depends on SYS_HAS_CPU_MIPS32_R1
1481	select CPU_HAS_PREFETCH
1482	select CPU_HAS_LOAD_STORE_LR
1483	select CPU_SUPPORTS_32BIT_KERNEL
1484	select CPU_SUPPORTS_HIGHMEM
1485	help
1486	  Choose this option to build a kernel for release 1 or later of the
1487	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1488	  MIPS processor are based on a MIPS32 processor.  If you know the
1489	  specific type of processor in your system, choose those that one
1490	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1491	  Release 2 of the MIPS32 architecture is available since several
1492	  years so chances are you even have a MIPS32 Release 2 processor
1493	  in which case you should choose CPU_MIPS32_R2 instead for better
1494	  performance.
1495
1496config CPU_MIPS32_R2
1497	bool "MIPS32 Release 2"
1498	depends on SYS_HAS_CPU_MIPS32_R2
1499	select CPU_HAS_PREFETCH
1500	select CPU_HAS_LOAD_STORE_LR
1501	select CPU_SUPPORTS_32BIT_KERNEL
1502	select CPU_SUPPORTS_HIGHMEM
1503	select CPU_SUPPORTS_MSA
1504	select HAVE_KVM
1505	help
1506	  Choose this option to build a kernel for release 2 or later of the
1507	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1508	  MIPS processor are based on a MIPS32 processor.  If you know the
1509	  specific type of processor in your system, choose those that one
1510	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1511
1512config CPU_MIPS32_R6
1513	bool "MIPS32 Release 6"
1514	depends on SYS_HAS_CPU_MIPS32_R6
1515	select CPU_HAS_PREFETCH
1516	select CPU_SUPPORTS_32BIT_KERNEL
1517	select CPU_SUPPORTS_HIGHMEM
1518	select CPU_SUPPORTS_MSA
1519	select HAVE_KVM
1520	select MIPS_O32_FP64_SUPPORT
1521	help
1522	  Choose this option to build a kernel for release 6 or later of the
1523	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1524	  family, are based on a MIPS32r6 processor. If you own an older
1525	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1526
1527config CPU_MIPS64_R1
1528	bool "MIPS64 Release 1"
1529	depends on SYS_HAS_CPU_MIPS64_R1
1530	select CPU_HAS_PREFETCH
1531	select CPU_HAS_LOAD_STORE_LR
1532	select CPU_SUPPORTS_32BIT_KERNEL
1533	select CPU_SUPPORTS_64BIT_KERNEL
1534	select CPU_SUPPORTS_HIGHMEM
1535	select CPU_SUPPORTS_HUGEPAGES
1536	help
1537	  Choose this option to build a kernel for release 1 or later of the
1538	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1539	  MIPS processor are based on a MIPS64 processor.  If you know the
1540	  specific type of processor in your system, choose those that one
1541	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1542	  Release 2 of the MIPS64 architecture is available since several
1543	  years so chances are you even have a MIPS64 Release 2 processor
1544	  in which case you should choose CPU_MIPS64_R2 instead for better
1545	  performance.
1546
1547config CPU_MIPS64_R2
1548	bool "MIPS64 Release 2"
1549	depends on SYS_HAS_CPU_MIPS64_R2
1550	select CPU_HAS_PREFETCH
1551	select CPU_HAS_LOAD_STORE_LR
1552	select CPU_SUPPORTS_32BIT_KERNEL
1553	select CPU_SUPPORTS_64BIT_KERNEL
1554	select CPU_SUPPORTS_HIGHMEM
1555	select CPU_SUPPORTS_HUGEPAGES
1556	select CPU_SUPPORTS_MSA
1557	select HAVE_KVM
1558	help
1559	  Choose this option to build a kernel for release 2 or later of the
1560	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1561	  MIPS processor are based on a MIPS64 processor.  If you know the
1562	  specific type of processor in your system, choose those that one
1563	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1564
1565config CPU_MIPS64_R6
1566	bool "MIPS64 Release 6"
1567	depends on SYS_HAS_CPU_MIPS64_R6
1568	select CPU_HAS_PREFETCH
1569	select CPU_SUPPORTS_32BIT_KERNEL
1570	select CPU_SUPPORTS_64BIT_KERNEL
1571	select CPU_SUPPORTS_HIGHMEM
1572	select CPU_SUPPORTS_HUGEPAGES
1573	select CPU_SUPPORTS_MSA
1574	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1575	select HAVE_KVM
1576	help
1577	  Choose this option to build a kernel for release 6 or later of the
1578	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1579	  family, are based on a MIPS64r6 processor. If you own an older
1580	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1581
1582config CPU_R3000
1583	bool "R3000"
1584	depends on SYS_HAS_CPU_R3000
1585	select CPU_HAS_WB
1586	select CPU_HAS_LOAD_STORE_LR
1587	select CPU_R3K_TLB
1588	select CPU_SUPPORTS_32BIT_KERNEL
1589	select CPU_SUPPORTS_HIGHMEM
1590	help
1591	  Please make sure to pick the right CPU type. Linux/MIPS is not
1592	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1593	  *not* work on R4000 machines and vice versa.  However, since most
1594	  of the supported machines have an R4000 (or similar) CPU, R4x00
1595	  might be a safe bet.  If the resulting kernel does not work,
1596	  try to recompile with R3000.
1597
1598config CPU_TX39XX
1599	bool "R39XX"
1600	depends on SYS_HAS_CPU_TX39XX
1601	select CPU_SUPPORTS_32BIT_KERNEL
1602	select CPU_HAS_LOAD_STORE_LR
1603	select CPU_R3K_TLB
1604
1605config CPU_VR41XX
1606	bool "R41xx"
1607	depends on SYS_HAS_CPU_VR41XX
1608	select CPU_SUPPORTS_32BIT_KERNEL
1609	select CPU_SUPPORTS_64BIT_KERNEL
1610	select CPU_HAS_LOAD_STORE_LR
1611	help
1612	  The options selects support for the NEC VR4100 series of processors.
1613	  Only choose this option if you have one of these processors as a
1614	  kernel built with this option will not run on any other type of
1615	  processor or vice versa.
1616
1617config CPU_R4X00
1618	bool "R4x00"
1619	depends on SYS_HAS_CPU_R4X00
1620	select CPU_SUPPORTS_32BIT_KERNEL
1621	select CPU_SUPPORTS_64BIT_KERNEL
1622	select CPU_SUPPORTS_HUGEPAGES
1623	select CPU_HAS_LOAD_STORE_LR
1624	help
1625	  MIPS Technologies R4000-series processors other than 4300, including
1626	  the R4000, R4400, R4600, and 4700.
1627
1628config CPU_TX49XX
1629	bool "R49XX"
1630	depends on SYS_HAS_CPU_TX49XX
1631	select CPU_HAS_PREFETCH
1632	select CPU_HAS_LOAD_STORE_LR
1633	select CPU_SUPPORTS_32BIT_KERNEL
1634	select CPU_SUPPORTS_64BIT_KERNEL
1635	select CPU_SUPPORTS_HUGEPAGES
1636
1637config CPU_R5000
1638	bool "R5000"
1639	depends on SYS_HAS_CPU_R5000
1640	select CPU_SUPPORTS_32BIT_KERNEL
1641	select CPU_SUPPORTS_64BIT_KERNEL
1642	select CPU_SUPPORTS_HUGEPAGES
1643	select CPU_HAS_LOAD_STORE_LR
1644	help
1645	  MIPS Technologies R5000-series processors other than the Nevada.
1646
1647config CPU_R5500
1648	bool "R5500"
1649	depends on SYS_HAS_CPU_R5500
1650	select CPU_SUPPORTS_32BIT_KERNEL
1651	select CPU_SUPPORTS_64BIT_KERNEL
1652	select CPU_SUPPORTS_HUGEPAGES
1653	select CPU_HAS_LOAD_STORE_LR
1654	help
1655	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1656	  instruction set.
1657
1658config CPU_NEVADA
1659	bool "RM52xx"
1660	depends on SYS_HAS_CPU_NEVADA
1661	select CPU_SUPPORTS_32BIT_KERNEL
1662	select CPU_SUPPORTS_64BIT_KERNEL
1663	select CPU_SUPPORTS_HUGEPAGES
1664	select CPU_HAS_LOAD_STORE_LR
1665	help
1666	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1667
1668config CPU_R10000
1669	bool "R10000"
1670	depends on SYS_HAS_CPU_R10000
1671	select CPU_HAS_PREFETCH
1672	select CPU_HAS_LOAD_STORE_LR
1673	select CPU_SUPPORTS_32BIT_KERNEL
1674	select CPU_SUPPORTS_64BIT_KERNEL
1675	select CPU_SUPPORTS_HIGHMEM
1676	select CPU_SUPPORTS_HUGEPAGES
1677	help
1678	  MIPS Technologies R10000-series processors.
1679
1680config CPU_RM7000
1681	bool "RM7000"
1682	depends on SYS_HAS_CPU_RM7000
1683	select CPU_HAS_PREFETCH
1684	select CPU_HAS_LOAD_STORE_LR
1685	select CPU_SUPPORTS_32BIT_KERNEL
1686	select CPU_SUPPORTS_64BIT_KERNEL
1687	select CPU_SUPPORTS_HIGHMEM
1688	select CPU_SUPPORTS_HUGEPAGES
1689
1690config CPU_SB1
1691	bool "SB1"
1692	depends on SYS_HAS_CPU_SB1
1693	select CPU_HAS_LOAD_STORE_LR
1694	select CPU_SUPPORTS_32BIT_KERNEL
1695	select CPU_SUPPORTS_64BIT_KERNEL
1696	select CPU_SUPPORTS_HIGHMEM
1697	select CPU_SUPPORTS_HUGEPAGES
1698	select WEAK_ORDERING
1699
1700config CPU_CAVIUM_OCTEON
1701	bool "Cavium Octeon processor"
1702	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1703	select CPU_HAS_PREFETCH
1704	select CPU_HAS_LOAD_STORE_LR
1705	select CPU_SUPPORTS_64BIT_KERNEL
1706	select WEAK_ORDERING
1707	select CPU_SUPPORTS_HIGHMEM
1708	select CPU_SUPPORTS_HUGEPAGES
1709	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1710	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1711	select MIPS_L1_CACHE_SHIFT_7
1712	select HAVE_KVM
1713	help
1714	  The Cavium Octeon processor is a highly integrated chip containing
1715	  many ethernet hardware widgets for networking tasks. The processor
1716	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1717	  Full details can be found at http://www.caviumnetworks.com.
1718
1719config CPU_BMIPS
1720	bool "Broadcom BMIPS"
1721	depends on SYS_HAS_CPU_BMIPS
1722	select CPU_MIPS32
1723	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1724	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1725	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1726	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1727	select CPU_SUPPORTS_32BIT_KERNEL
1728	select DMA_NONCOHERENT
1729	select IRQ_MIPS_CPU
1730	select SWAP_IO_SPACE
1731	select WEAK_ORDERING
1732	select CPU_SUPPORTS_HIGHMEM
1733	select CPU_HAS_PREFETCH
1734	select CPU_HAS_LOAD_STORE_LR
1735	select CPU_SUPPORTS_CPUFREQ
1736	select MIPS_EXTERNAL_TIMER
1737	help
1738	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1739
1740config CPU_XLR
1741	bool "Netlogic XLR SoC"
1742	depends on SYS_HAS_CPU_XLR
1743	select CPU_HAS_LOAD_STORE_LR
1744	select CPU_SUPPORTS_32BIT_KERNEL
1745	select CPU_SUPPORTS_64BIT_KERNEL
1746	select CPU_SUPPORTS_HIGHMEM
1747	select CPU_SUPPORTS_HUGEPAGES
1748	select WEAK_ORDERING
1749	select WEAK_REORDERING_BEYOND_LLSC
1750	help
1751	  Netlogic Microsystems XLR/XLS processors.
1752
1753config CPU_XLP
1754	bool "Netlogic XLP SoC"
1755	depends on SYS_HAS_CPU_XLP
1756	select CPU_SUPPORTS_32BIT_KERNEL
1757	select CPU_SUPPORTS_64BIT_KERNEL
1758	select CPU_SUPPORTS_HIGHMEM
1759	select WEAK_ORDERING
1760	select WEAK_REORDERING_BEYOND_LLSC
1761	select CPU_HAS_PREFETCH
1762	select CPU_HAS_LOAD_STORE_LR
1763	select CPU_MIPSR2
1764	select CPU_SUPPORTS_HUGEPAGES
1765	select MIPS_ASID_BITS_VARIABLE
1766	help
1767	  Netlogic Microsystems XLP processors.
1768endchoice
1769
1770config CPU_MIPS32_3_5_FEATURES
1771	bool "MIPS32 Release 3.5 Features"
1772	depends on SYS_HAS_CPU_MIPS32_R3_5
1773	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1774	help
1775	  Choose this option to build a kernel for release 2 or later of the
1776	  MIPS32 architecture including features from the 3.5 release such as
1777	  support for Enhanced Virtual Addressing (EVA).
1778
1779config CPU_MIPS32_3_5_EVA
1780	bool "Enhanced Virtual Addressing (EVA)"
1781	depends on CPU_MIPS32_3_5_FEATURES
1782	select EVA
1783	default y
1784	help
1785	  Choose this option if you want to enable the Enhanced Virtual
1786	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1787	  One of its primary benefits is an increase in the maximum size
1788	  of lowmem (up to 3GB). If unsure, say 'N' here.
1789
1790config CPU_MIPS32_R5_FEATURES
1791	bool "MIPS32 Release 5 Features"
1792	depends on SYS_HAS_CPU_MIPS32_R5
1793	depends on CPU_MIPS32_R2
1794	help
1795	  Choose this option to build a kernel for release 2 or later of the
1796	  MIPS32 architecture including features from release 5 such as
1797	  support for Extended Physical Addressing (XPA).
1798
1799config CPU_MIPS32_R5_XPA
1800	bool "Extended Physical Addressing (XPA)"
1801	depends on CPU_MIPS32_R5_FEATURES
1802	depends on !EVA
1803	depends on !PAGE_SIZE_4KB
1804	depends on SYS_SUPPORTS_HIGHMEM
1805	select XPA
1806	select HIGHMEM
1807	select PHYS_ADDR_T_64BIT
1808	default n
1809	help
1810	  Choose this option if you want to enable the Extended Physical
1811	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1812	  benefit is to increase physical addressing equal to or greater
1813	  than 40 bits. Note that this has the side effect of turning on
1814	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1815	  If unsure, say 'N' here.
1816
1817if CPU_LOONGSON2F
1818config CPU_NOP_WORKAROUNDS
1819	bool
1820
1821config CPU_JUMP_WORKAROUNDS
1822	bool
1823
1824config CPU_LOONGSON2F_WORKAROUNDS
1825	bool "Loongson 2F Workarounds"
1826	default y
1827	select CPU_NOP_WORKAROUNDS
1828	select CPU_JUMP_WORKAROUNDS
1829	help
1830	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1831	  require workarounds.  Without workarounds the system may hang
1832	  unexpectedly.  For more information please refer to the gas
1833	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1834
1835	  Loongson 2F03 and later have fixed these issues and no workarounds
1836	  are needed.  The workarounds have no significant side effect on them
1837	  but may decrease the performance of the system so this option should
1838	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1839	  systems.
1840
1841	  If unsure, please say Y.
1842endif # CPU_LOONGSON2F
1843
1844config SYS_SUPPORTS_ZBOOT
1845	bool
1846	select HAVE_KERNEL_GZIP
1847	select HAVE_KERNEL_BZIP2
1848	select HAVE_KERNEL_LZ4
1849	select HAVE_KERNEL_LZMA
1850	select HAVE_KERNEL_LZO
1851	select HAVE_KERNEL_XZ
1852
1853config SYS_SUPPORTS_ZBOOT_UART16550
1854	bool
1855	select SYS_SUPPORTS_ZBOOT
1856
1857config SYS_SUPPORTS_ZBOOT_UART_PROM
1858	bool
1859	select SYS_SUPPORTS_ZBOOT
1860
1861config CPU_LOONGSON2EF
1862	bool
1863	select CPU_SUPPORTS_32BIT_KERNEL
1864	select CPU_SUPPORTS_64BIT_KERNEL
1865	select CPU_SUPPORTS_HIGHMEM
1866	select CPU_SUPPORTS_HUGEPAGES
1867	select ARCH_HAS_PHYS_TO_DMA
1868	select CPU_HAS_LOAD_STORE_LR
1869
1870config CPU_LOONGSON1
1871	bool
1872	select CPU_MIPS32
1873	select CPU_MIPSR2
1874	select CPU_HAS_PREFETCH
1875	select CPU_HAS_LOAD_STORE_LR
1876	select CPU_SUPPORTS_32BIT_KERNEL
1877	select CPU_SUPPORTS_HIGHMEM
1878	select CPU_SUPPORTS_CPUFREQ
1879
1880config CPU_BMIPS32_3300
1881	select SMP_UP if SMP
1882	bool
1883
1884config CPU_BMIPS4350
1885	bool
1886	select SYS_SUPPORTS_SMP
1887	select SYS_SUPPORTS_HOTPLUG_CPU
1888
1889config CPU_BMIPS4380
1890	bool
1891	select MIPS_L1_CACHE_SHIFT_6
1892	select SYS_SUPPORTS_SMP
1893	select SYS_SUPPORTS_HOTPLUG_CPU
1894	select CPU_HAS_RIXI
1895
1896config CPU_BMIPS5000
1897	bool
1898	select MIPS_CPU_SCACHE
1899	select MIPS_L1_CACHE_SHIFT_7
1900	select SYS_SUPPORTS_SMP
1901	select SYS_SUPPORTS_HOTPLUG_CPU
1902	select CPU_HAS_RIXI
1903
1904config SYS_HAS_CPU_LOONGSON64
1905	bool
1906	select CPU_SUPPORTS_CPUFREQ
1907	select CPU_HAS_RIXI
1908
1909config SYS_HAS_CPU_LOONGSON2E
1910	bool
1911
1912config SYS_HAS_CPU_LOONGSON2F
1913	bool
1914	select CPU_SUPPORTS_CPUFREQ
1915	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1916	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1917
1918config SYS_HAS_CPU_LOONGSON1B
1919	bool
1920
1921config SYS_HAS_CPU_LOONGSON1C
1922	bool
1923
1924config SYS_HAS_CPU_MIPS32_R1
1925	bool
1926
1927config SYS_HAS_CPU_MIPS32_R2
1928	bool
1929
1930config SYS_HAS_CPU_MIPS32_R3_5
1931	bool
1932
1933config SYS_HAS_CPU_MIPS32_R5
1934	bool
1935	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1936
1937config SYS_HAS_CPU_MIPS32_R6
1938	bool
1939	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1940
1941config SYS_HAS_CPU_MIPS64_R1
1942	bool
1943
1944config SYS_HAS_CPU_MIPS64_R2
1945	bool
1946
1947config SYS_HAS_CPU_MIPS64_R6
1948	bool
1949	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1950
1951config SYS_HAS_CPU_R3000
1952	bool
1953
1954config SYS_HAS_CPU_TX39XX
1955	bool
1956
1957config SYS_HAS_CPU_VR41XX
1958	bool
1959
1960config SYS_HAS_CPU_R4X00
1961	bool
1962
1963config SYS_HAS_CPU_TX49XX
1964	bool
1965
1966config SYS_HAS_CPU_R5000
1967	bool
1968
1969config SYS_HAS_CPU_R5500
1970	bool
1971
1972config SYS_HAS_CPU_NEVADA
1973	bool
1974
1975config SYS_HAS_CPU_R10000
1976	bool
1977	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1978
1979config SYS_HAS_CPU_RM7000
1980	bool
1981
1982config SYS_HAS_CPU_SB1
1983	bool
1984
1985config SYS_HAS_CPU_CAVIUM_OCTEON
1986	bool
1987
1988config SYS_HAS_CPU_BMIPS
1989	bool
1990
1991config SYS_HAS_CPU_BMIPS32_3300
1992	bool
1993	select SYS_HAS_CPU_BMIPS
1994
1995config SYS_HAS_CPU_BMIPS4350
1996	bool
1997	select SYS_HAS_CPU_BMIPS
1998
1999config SYS_HAS_CPU_BMIPS4380
2000	bool
2001	select SYS_HAS_CPU_BMIPS
2002
2003config SYS_HAS_CPU_BMIPS5000
2004	bool
2005	select SYS_HAS_CPU_BMIPS
2006	select ARCH_HAS_SYNC_DMA_FOR_CPU
2007
2008config SYS_HAS_CPU_XLR
2009	bool
2010
2011config SYS_HAS_CPU_XLP
2012	bool
2013
2014#
2015# CPU may reorder R->R, R->W, W->R, W->W
2016# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2017#
2018config WEAK_ORDERING
2019	bool
2020
2021#
2022# CPU may reorder reads and writes beyond LL/SC
2023# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2024#
2025config WEAK_REORDERING_BEYOND_LLSC
2026	bool
2027endmenu
2028
2029#
2030# These two indicate any level of the MIPS32 and MIPS64 architecture
2031#
2032config CPU_MIPS32
2033	bool
2034	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2035
2036config CPU_MIPS64
2037	bool
2038	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2039
2040#
2041# These indicate the revision of the architecture
2042#
2043config CPU_MIPSR1
2044	bool
2045	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2046
2047config CPU_MIPSR2
2048	bool
2049	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2050	select CPU_HAS_RIXI
2051	select MIPS_SPRAM
2052
2053config CPU_MIPSR6
2054	bool
2055	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2056	select CPU_HAS_RIXI
2057	select HAVE_ARCH_BITREVERSE
2058	select MIPS_ASID_BITS_VARIABLE
2059	select MIPS_CRC_SUPPORT
2060	select MIPS_SPRAM
2061
2062config TARGET_ISA_REV
2063	int
2064	default 1 if CPU_MIPSR1
2065	default 2 if CPU_MIPSR2
2066	default 6 if CPU_MIPSR6
2067	default 0
2068	help
2069	  Reflects the ISA revision being targeted by the kernel build. This
2070	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2071
2072config EVA
2073	bool
2074
2075config XPA
2076	bool
2077
2078config SYS_SUPPORTS_32BIT_KERNEL
2079	bool
2080config SYS_SUPPORTS_64BIT_KERNEL
2081	bool
2082config CPU_SUPPORTS_32BIT_KERNEL
2083	bool
2084config CPU_SUPPORTS_64BIT_KERNEL
2085	bool
2086config CPU_SUPPORTS_CPUFREQ
2087	bool
2088config CPU_SUPPORTS_ADDRWINCFG
2089	bool
2090config CPU_SUPPORTS_HUGEPAGES
2091	bool
2092	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2093config CPU_SUPPORTS_UNCACHED_ACCELERATED
2094	bool
2095config MIPS_PGD_C0_CONTEXT
2096	bool
2097	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2098
2099#
2100# Set to y for ptrace access to watch registers.
2101#
2102config HARDWARE_WATCHPOINTS
2103	bool
2104	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2105
2106menu "Kernel type"
2107
2108choice
2109	prompt "Kernel code model"
2110	help
2111	  You should only select this option if you have a workload that
2112	  actually benefits from 64-bit processing or if your machine has
2113	  large memory.  You will only be presented a single option in this
2114	  menu if your system does not support both 32-bit and 64-bit kernels.
2115
2116config 32BIT
2117	bool "32-bit kernel"
2118	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2119	select TRAD_SIGNALS
2120	help
2121	  Select this option if you want to build a 32-bit kernel.
2122
2123config 64BIT
2124	bool "64-bit kernel"
2125	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2126	help
2127	  Select this option if you want to build a 64-bit kernel.
2128
2129endchoice
2130
2131config KVM_GUEST
2132	bool "KVM Guest Kernel"
2133	depends on BROKEN_ON_SMP
2134	help
2135	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2136	  mode.
2137
2138config KVM_GUEST_TIMER_FREQ
2139	int "Count/Compare Timer Frequency (MHz)"
2140	depends on KVM_GUEST
2141	default 100
2142	help
2143	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2144	  emulation when determining guest CPU Frequency. Instead, the guest's
2145	  timer frequency is specified directly.
2146
2147config MIPS_VA_BITS_48
2148	bool "48 bits virtual memory"
2149	depends on 64BIT
2150	help
2151	  Support a maximum at least 48 bits of application virtual
2152	  memory.  Default is 40 bits or less, depending on the CPU.
2153	  For page sizes 16k and above, this option results in a small
2154	  memory overhead for page tables.  For 4k page size, a fourth
2155	  level of page tables is added which imposes both a memory
2156	  overhead as well as slower TLB fault handling.
2157
2158	  If unsure, say N.
2159
2160choice
2161	prompt "Kernel page size"
2162	default PAGE_SIZE_4KB
2163
2164config PAGE_SIZE_4KB
2165	bool "4kB"
2166	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2167	help
2168	  This option select the standard 4kB Linux page size.  On some
2169	  R3000-family processors this is the only available page size.  Using
2170	  4kB page size will minimize memory consumption and is therefore
2171	  recommended for low memory systems.
2172
2173config PAGE_SIZE_8KB
2174	bool "8kB"
2175	depends on CPU_CAVIUM_OCTEON
2176	depends on !MIPS_VA_BITS_48
2177	help
2178	  Using 8kB page size will result in higher performance kernel at
2179	  the price of higher memory consumption.  This option is available
2180	  only on cnMIPS processors.  Note that you will need a suitable Linux
2181	  distribution to support this.
2182
2183config PAGE_SIZE_16KB
2184	bool "16kB"
2185	depends on !CPU_R3000 && !CPU_TX39XX
2186	help
2187	  Using 16kB page size will result in higher performance kernel at
2188	  the price of higher memory consumption.  This option is available on
2189	  all non-R3000 family processors.  Note that you will need a suitable
2190	  Linux distribution to support this.
2191
2192config PAGE_SIZE_32KB
2193	bool "32kB"
2194	depends on CPU_CAVIUM_OCTEON
2195	depends on !MIPS_VA_BITS_48
2196	help
2197	  Using 32kB page size will result in higher performance kernel at
2198	  the price of higher memory consumption.  This option is available
2199	  only on cnMIPS cores.  Note that you will need a suitable Linux
2200	  distribution to support this.
2201
2202config PAGE_SIZE_64KB
2203	bool "64kB"
2204	depends on !CPU_R3000 && !CPU_TX39XX
2205	help
2206	  Using 64kB page size will result in higher performance kernel at
2207	  the price of higher memory consumption.  This option is available on
2208	  all non-R3000 family processor.  Not that at the time of this
2209	  writing this option is still high experimental.
2210
2211endchoice
2212
2213config FORCE_MAX_ZONEORDER
2214	int "Maximum zone order"
2215	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2216	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2217	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2218	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2219	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2220	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2221	range 11 64
2222	default "11"
2223	help
2224	  The kernel memory allocator divides physically contiguous memory
2225	  blocks into "zones", where each zone is a power of two number of
2226	  pages.  This option selects the largest power of two that the kernel
2227	  keeps in the memory allocator.  If you need to allocate very large
2228	  blocks of physically contiguous memory, then you may need to
2229	  increase this value.
2230
2231	  This config option is actually maximum order plus one. For example,
2232	  a value of 11 means that the largest free memory block is 2^10 pages.
2233
2234	  The page size is not necessarily 4KB.  Keep this in mind
2235	  when choosing a value for this option.
2236
2237config BOARD_SCACHE
2238	bool
2239
2240config IP22_CPU_SCACHE
2241	bool
2242	select BOARD_SCACHE
2243
2244#
2245# Support for a MIPS32 / MIPS64 style S-caches
2246#
2247config MIPS_CPU_SCACHE
2248	bool
2249	select BOARD_SCACHE
2250
2251config R5000_CPU_SCACHE
2252	bool
2253	select BOARD_SCACHE
2254
2255config RM7000_CPU_SCACHE
2256	bool
2257	select BOARD_SCACHE
2258
2259config SIBYTE_DMA_PAGEOPS
2260	bool "Use DMA to clear/copy pages"
2261	depends on CPU_SB1
2262	help
2263	  Instead of using the CPU to zero and copy pages, use a Data Mover
2264	  channel.  These DMA channels are otherwise unused by the standard
2265	  SiByte Linux port.  Seems to give a small performance benefit.
2266
2267config CPU_HAS_PREFETCH
2268	bool
2269
2270config CPU_GENERIC_DUMP_TLB
2271	bool
2272	default y if !(CPU_R3000 || CPU_TX39XX)
2273
2274config MIPS_FP_SUPPORT
2275	bool "Floating Point support" if EXPERT
2276	default y
2277	help
2278	  Select y to include support for floating point in the kernel
2279	  including initialization of FPU hardware, FP context save & restore
2280	  and emulation of an FPU where necessary. Without this support any
2281	  userland program attempting to use floating point instructions will
2282	  receive a SIGILL.
2283
2284	  If you know that your userland will not attempt to use floating point
2285	  instructions then you can say n here to shrink the kernel a little.
2286
2287	  If unsure, say y.
2288
2289config CPU_R2300_FPU
2290	bool
2291	depends on MIPS_FP_SUPPORT
2292	default y if CPU_R3000 || CPU_TX39XX
2293
2294config CPU_R3K_TLB
2295	bool
2296
2297config CPU_R4K_FPU
2298	bool
2299	depends on MIPS_FP_SUPPORT
2300	default y if !CPU_R2300_FPU
2301
2302config CPU_R4K_CACHE_TLB
2303	bool
2304	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2305
2306config MIPS_MT_SMP
2307	bool "MIPS MT SMP support (1 TC on each available VPE)"
2308	default y
2309	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2310	select CPU_MIPSR2_IRQ_VI
2311	select CPU_MIPSR2_IRQ_EI
2312	select SYNC_R4K
2313	select MIPS_MT
2314	select SMP
2315	select SMP_UP
2316	select SYS_SUPPORTS_SMP
2317	select SYS_SUPPORTS_SCHED_SMT
2318	select MIPS_PERF_SHARED_TC_COUNTERS
2319	help
2320	  This is a kernel model which is known as SMVP. This is supported
2321	  on cores with the MT ASE and uses the available VPEs to implement
2322	  virtual processors which supports SMP. This is equivalent to the
2323	  Intel Hyperthreading feature. For further information go to
2324	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2325
2326config MIPS_MT
2327	bool
2328
2329config SCHED_SMT
2330	bool "SMT (multithreading) scheduler support"
2331	depends on SYS_SUPPORTS_SCHED_SMT
2332	default n
2333	help
2334	  SMT scheduler support improves the CPU scheduler's decision making
2335	  when dealing with MIPS MT enabled cores at a cost of slightly
2336	  increased overhead in some places. If unsure say N here.
2337
2338config SYS_SUPPORTS_SCHED_SMT
2339	bool
2340
2341config SYS_SUPPORTS_MULTITHREADING
2342	bool
2343
2344config MIPS_MT_FPAFF
2345	bool "Dynamic FPU affinity for FP-intensive threads"
2346	default y
2347	depends on MIPS_MT_SMP
2348
2349config MIPSR2_TO_R6_EMULATOR
2350	bool "MIPS R2-to-R6 emulator"
2351	depends on CPU_MIPSR6
2352	depends on MIPS_FP_SUPPORT
2353	default y
2354	help
2355	  Choose this option if you want to run non-R6 MIPS userland code.
2356	  Even if you say 'Y' here, the emulator will still be disabled by
2357	  default. You can enable it using the 'mipsr2emu' kernel option.
2358	  The only reason this is a build-time option is to save ~14K from the
2359	  final kernel image.
2360
2361config SYS_SUPPORTS_VPE_LOADER
2362	bool
2363	depends on SYS_SUPPORTS_MULTITHREADING
2364	help
2365	  Indicates that the platform supports the VPE loader, and provides
2366	  physical_memsize.
2367
2368config MIPS_VPE_LOADER
2369	bool "VPE loader support."
2370	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2371	select CPU_MIPSR2_IRQ_VI
2372	select CPU_MIPSR2_IRQ_EI
2373	select MIPS_MT
2374	help
2375	  Includes a loader for loading an elf relocatable object
2376	  onto another VPE and running it.
2377
2378config MIPS_VPE_LOADER_CMP
2379	bool
2380	default "y"
2381	depends on MIPS_VPE_LOADER && MIPS_CMP
2382
2383config MIPS_VPE_LOADER_MT
2384	bool
2385	default "y"
2386	depends on MIPS_VPE_LOADER && !MIPS_CMP
2387
2388config MIPS_VPE_LOADER_TOM
2389	bool "Load VPE program into memory hidden from linux"
2390	depends on MIPS_VPE_LOADER
2391	default y
2392	help
2393	  The loader can use memory that is present but has been hidden from
2394	  Linux using the kernel command line option "mem=xxMB". It's up to
2395	  you to ensure the amount you put in the option and the space your
2396	  program requires is less or equal to the amount physically present.
2397
2398config MIPS_VPE_APSP_API
2399	bool "Enable support for AP/SP API (RTLX)"
2400	depends on MIPS_VPE_LOADER
2401
2402config MIPS_VPE_APSP_API_CMP
2403	bool
2404	default "y"
2405	depends on MIPS_VPE_APSP_API && MIPS_CMP
2406
2407config MIPS_VPE_APSP_API_MT
2408	bool
2409	default "y"
2410	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2411
2412config MIPS_CMP
2413	bool "MIPS CMP framework support (DEPRECATED)"
2414	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2415	select SMP
2416	select SYNC_R4K
2417	select SYS_SUPPORTS_SMP
2418	select WEAK_ORDERING
2419	default n
2420	help
2421	  Select this if you are using a bootloader which implements the "CMP
2422	  framework" protocol (ie. YAMON) and want your kernel to make use of
2423	  its ability to start secondary CPUs.
2424
2425	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2426	  instead of this.
2427
2428config MIPS_CPS
2429	bool "MIPS Coherent Processing System support"
2430	depends on SYS_SUPPORTS_MIPS_CPS
2431	select MIPS_CM
2432	select MIPS_CPS_PM if HOTPLUG_CPU
2433	select SMP
2434	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2435	select SYS_SUPPORTS_HOTPLUG_CPU
2436	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2437	select SYS_SUPPORTS_SMP
2438	select WEAK_ORDERING
2439	help
2440	  Select this if you wish to run an SMP kernel across multiple cores
2441	  within a MIPS Coherent Processing System. When this option is
2442	  enabled the kernel will probe for other cores and boot them with
2443	  no external assistance. It is safe to enable this when hardware
2444	  support is unavailable.
2445
2446config MIPS_CPS_PM
2447	depends on MIPS_CPS
2448	bool
2449
2450config MIPS_CM
2451	bool
2452	select MIPS_CPC
2453
2454config MIPS_CPC
2455	bool
2456
2457config SB1_PASS_2_WORKAROUNDS
2458	bool
2459	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2460	default y
2461
2462config SB1_PASS_2_1_WORKAROUNDS
2463	bool
2464	depends on CPU_SB1 && CPU_SB1_PASS_2
2465	default y
2466
2467choice
2468	prompt "SmartMIPS or microMIPS ASE support"
2469
2470config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2471	bool "None"
2472	help
2473	  Select this if you want neither microMIPS nor SmartMIPS support
2474
2475config CPU_HAS_SMARTMIPS
2476	depends on SYS_SUPPORTS_SMARTMIPS
2477	bool "SmartMIPS"
2478	help
2479	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2480	  increased security at both hardware and software level for
2481	  smartcards.  Enabling this option will allow proper use of the
2482	  SmartMIPS instructions by Linux applications.  However a kernel with
2483	  this option will not work on a MIPS core without SmartMIPS core.  If
2484	  you don't know you probably don't have SmartMIPS and should say N
2485	  here.
2486
2487config CPU_MICROMIPS
2488	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2489	bool "microMIPS"
2490	help
2491	  When this option is enabled the kernel will be built using the
2492	  microMIPS ISA
2493
2494endchoice
2495
2496config CPU_HAS_MSA
2497	bool "Support for the MIPS SIMD Architecture"
2498	depends on CPU_SUPPORTS_MSA
2499	depends on MIPS_FP_SUPPORT
2500	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2501	help
2502	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2503	  and a set of SIMD instructions to operate on them. When this option
2504	  is enabled the kernel will support allocating & switching MSA
2505	  vector register contexts. If you know that your kernel will only be
2506	  running on CPUs which do not support MSA or that your userland will
2507	  not be making use of it then you may wish to say N here to reduce
2508	  the size & complexity of your kernel.
2509
2510	  If unsure, say Y.
2511
2512config CPU_HAS_WB
2513	bool
2514
2515config XKS01
2516	bool
2517
2518config CPU_HAS_RIXI
2519	bool
2520
2521config CPU_HAS_LOAD_STORE_LR
2522	bool
2523	help
2524	  CPU has support for unaligned load and store instructions:
2525	  LWL, LWR, SWL, SWR (Load/store word left/right).
2526	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2527
2528#
2529# Vectored interrupt mode is an R2 feature
2530#
2531config CPU_MIPSR2_IRQ_VI
2532	bool
2533
2534#
2535# Extended interrupt mode is an R2 feature
2536#
2537config CPU_MIPSR2_IRQ_EI
2538	bool
2539
2540config CPU_HAS_SYNC
2541	bool
2542	depends on !CPU_R3000
2543	default y
2544
2545#
2546# CPU non-features
2547#
2548config CPU_DADDI_WORKAROUNDS
2549	bool
2550
2551config CPU_R4000_WORKAROUNDS
2552	bool
2553	select CPU_R4400_WORKAROUNDS
2554
2555config CPU_R4400_WORKAROUNDS
2556	bool
2557
2558config CPU_R4X00_BUGS64
2559	bool
2560	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2561
2562config MIPS_ASID_SHIFT
2563	int
2564	default 6 if CPU_R3000 || CPU_TX39XX
2565	default 0
2566
2567config MIPS_ASID_BITS
2568	int
2569	default 0 if MIPS_ASID_BITS_VARIABLE
2570	default 6 if CPU_R3000 || CPU_TX39XX
2571	default 8
2572
2573config MIPS_ASID_BITS_VARIABLE
2574	bool
2575
2576config MIPS_CRC_SUPPORT
2577	bool
2578
2579#
2580# - Highmem only makes sense for the 32-bit kernel.
2581# - The current highmem code will only work properly on physically indexed
2582#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2583#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2584#   moment we protect the user and offer the highmem option only on machines
2585#   where it's known to be safe.  This will not offer highmem on a few systems
2586#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2587#   indexed CPUs but we're playing safe.
2588# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2589#   know they might have memory configurations that could make use of highmem
2590#   support.
2591#
2592config HIGHMEM
2593	bool "High Memory Support"
2594	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2595
2596config CPU_SUPPORTS_HIGHMEM
2597	bool
2598
2599config SYS_SUPPORTS_HIGHMEM
2600	bool
2601
2602config SYS_SUPPORTS_SMARTMIPS
2603	bool
2604
2605config SYS_SUPPORTS_MICROMIPS
2606	bool
2607
2608config SYS_SUPPORTS_MIPS16
2609	bool
2610	help
2611	  This option must be set if a kernel might be executed on a MIPS16-
2612	  enabled CPU even if MIPS16 is not actually being used.  In other
2613	  words, it makes the kernel MIPS16-tolerant.
2614
2615config CPU_SUPPORTS_MSA
2616	bool
2617
2618config ARCH_FLATMEM_ENABLE
2619	def_bool y
2620	depends on !NUMA && !CPU_LOONGSON2EF
2621
2622config ARCH_SPARSEMEM_ENABLE
2623	bool
2624	select SPARSEMEM_STATIC if !SGI_IP27
2625
2626config NUMA
2627	bool "NUMA Support"
2628	depends on SYS_SUPPORTS_NUMA
2629	help
2630	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2631	  Access).  This option improves performance on systems with more
2632	  than two nodes; on two node systems it is generally better to
2633	  leave it disabled; on single node systems disable this option
2634	  disabled.
2635
2636config SYS_SUPPORTS_NUMA
2637	bool
2638
2639config RELOCATABLE
2640	bool "Relocatable kernel"
2641	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2642	help
2643	  This builds a kernel image that retains relocation information
2644	  so it can be loaded someplace besides the default 1MB.
2645	  The relocations make the kernel binary about 15% larger,
2646	  but are discarded at runtime
2647
2648config RELOCATION_TABLE_SIZE
2649	hex "Relocation table size"
2650	depends on RELOCATABLE
2651	range 0x0 0x01000000
2652	default "0x00100000"
2653	---help---
2654	  A table of relocation data will be appended to the kernel binary
2655	  and parsed at boot to fix up the relocated kernel.
2656
2657	  This option allows the amount of space reserved for the table to be
2658	  adjusted, although the default of 1Mb should be ok in most cases.
2659
2660	  The build will fail and a valid size suggested if this is too small.
2661
2662	  If unsure, leave at the default value.
2663
2664config RANDOMIZE_BASE
2665	bool "Randomize the address of the kernel image"
2666	depends on RELOCATABLE
2667	---help---
2668	  Randomizes the physical and virtual address at which the
2669	  kernel image is loaded, as a security feature that
2670	  deters exploit attempts relying on knowledge of the location
2671	  of kernel internals.
2672
2673	  Entropy is generated using any coprocessor 0 registers available.
2674
2675	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2676
2677	  If unsure, say N.
2678
2679config RANDOMIZE_BASE_MAX_OFFSET
2680	hex "Maximum kASLR offset" if EXPERT
2681	depends on RANDOMIZE_BASE
2682	range 0x0 0x40000000 if EVA || 64BIT
2683	range 0x0 0x08000000
2684	default "0x01000000"
2685	---help---
2686	  When kASLR is active, this provides the maximum offset that will
2687	  be applied to the kernel image. It should be set according to the
2688	  amount of physical RAM available in the target system minus
2689	  PHYSICAL_START and must be a power of 2.
2690
2691	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2692	  EVA or 64-bit. The default is 16Mb.
2693
2694config NODES_SHIFT
2695	int
2696	default "6"
2697	depends on NEED_MULTIPLE_NODES
2698
2699config HW_PERF_EVENTS
2700	bool "Enable hardware performance counter support for perf events"
2701	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2702	default y
2703	help
2704	  Enable hardware performance counter support for perf events. If
2705	  disabled, perf events will use software events only.
2706
2707config SMP
2708	bool "Multi-Processing support"
2709	depends on SYS_SUPPORTS_SMP
2710	help
2711	  This enables support for systems with more than one CPU. If you have
2712	  a system with only one CPU, say N. If you have a system with more
2713	  than one CPU, say Y.
2714
2715	  If you say N here, the kernel will run on uni- and multiprocessor
2716	  machines, but will use only one CPU of a multiprocessor machine. If
2717	  you say Y here, the kernel will run on many, but not all,
2718	  uniprocessor machines. On a uniprocessor machine, the kernel
2719	  will run faster if you say N here.
2720
2721	  People using multiprocessor machines who say Y here should also say
2722	  Y to "Enhanced Real Time Clock Support", below.
2723
2724	  See also the SMP-HOWTO available at
2725	  <http://www.tldp.org/docs.html#howto>.
2726
2727	  If you don't know what to do here, say N.
2728
2729config HOTPLUG_CPU
2730	bool "Support for hot-pluggable CPUs"
2731	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2732	help
2733	  Say Y here to allow turning CPUs off and on. CPUs can be
2734	  controlled through /sys/devices/system/cpu.
2735	  (Note: power management support will enable this option
2736	    automatically on SMP systems. )
2737	  Say N if you want to disable CPU hotplug.
2738
2739config SMP_UP
2740	bool
2741
2742config SYS_SUPPORTS_MIPS_CMP
2743	bool
2744
2745config SYS_SUPPORTS_MIPS_CPS
2746	bool
2747
2748config SYS_SUPPORTS_SMP
2749	bool
2750
2751config NR_CPUS_DEFAULT_4
2752	bool
2753
2754config NR_CPUS_DEFAULT_8
2755	bool
2756
2757config NR_CPUS_DEFAULT_16
2758	bool
2759
2760config NR_CPUS_DEFAULT_32
2761	bool
2762
2763config NR_CPUS_DEFAULT_64
2764	bool
2765
2766config NR_CPUS
2767	int "Maximum number of CPUs (2-256)"
2768	range 2 256
2769	depends on SMP
2770	default "4" if NR_CPUS_DEFAULT_4
2771	default "8" if NR_CPUS_DEFAULT_8
2772	default "16" if NR_CPUS_DEFAULT_16
2773	default "32" if NR_CPUS_DEFAULT_32
2774	default "64" if NR_CPUS_DEFAULT_64
2775	help
2776	  This allows you to specify the maximum number of CPUs which this
2777	  kernel will support.  The maximum supported value is 32 for 32-bit
2778	  kernel and 64 for 64-bit kernels; the minimum value which makes
2779	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2780	  and 2 for all others.
2781
2782	  This is purely to save memory - each supported CPU adds
2783	  approximately eight kilobytes to the kernel image.  For best
2784	  performance should round up your number of processors to the next
2785	  power of two.
2786
2787config MIPS_PERF_SHARED_TC_COUNTERS
2788	bool
2789
2790config MIPS_NR_CPU_NR_MAP_1024
2791	bool
2792
2793config MIPS_NR_CPU_NR_MAP
2794	int
2795	depends on SMP
2796	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2797	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2798
2799#
2800# Timer Interrupt Frequency Configuration
2801#
2802
2803choice
2804	prompt "Timer frequency"
2805	default HZ_250
2806	help
2807	  Allows the configuration of the timer frequency.
2808
2809	config HZ_24
2810		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2811
2812	config HZ_48
2813		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2814
2815	config HZ_100
2816		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2817
2818	config HZ_128
2819		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2820
2821	config HZ_250
2822		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2823
2824	config HZ_256
2825		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2826
2827	config HZ_1000
2828		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2829
2830	config HZ_1024
2831		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2832
2833endchoice
2834
2835config SYS_SUPPORTS_24HZ
2836	bool
2837
2838config SYS_SUPPORTS_48HZ
2839	bool
2840
2841config SYS_SUPPORTS_100HZ
2842	bool
2843
2844config SYS_SUPPORTS_128HZ
2845	bool
2846
2847config SYS_SUPPORTS_250HZ
2848	bool
2849
2850config SYS_SUPPORTS_256HZ
2851	bool
2852
2853config SYS_SUPPORTS_1000HZ
2854	bool
2855
2856config SYS_SUPPORTS_1024HZ
2857	bool
2858
2859config SYS_SUPPORTS_ARBIT_HZ
2860	bool
2861	default y if !SYS_SUPPORTS_24HZ && \
2862		     !SYS_SUPPORTS_48HZ && \
2863		     !SYS_SUPPORTS_100HZ && \
2864		     !SYS_SUPPORTS_128HZ && \
2865		     !SYS_SUPPORTS_250HZ && \
2866		     !SYS_SUPPORTS_256HZ && \
2867		     !SYS_SUPPORTS_1000HZ && \
2868		     !SYS_SUPPORTS_1024HZ
2869
2870config HZ
2871	int
2872	default 24 if HZ_24
2873	default 48 if HZ_48
2874	default 100 if HZ_100
2875	default 128 if HZ_128
2876	default 250 if HZ_250
2877	default 256 if HZ_256
2878	default 1000 if HZ_1000
2879	default 1024 if HZ_1024
2880
2881config SCHED_HRTICK
2882	def_bool HIGH_RES_TIMERS
2883
2884config KEXEC
2885	bool "Kexec system call"
2886	select KEXEC_CORE
2887	help
2888	  kexec is a system call that implements the ability to shutdown your
2889	  current kernel, and to start another kernel.  It is like a reboot
2890	  but it is independent of the system firmware.   And like a reboot
2891	  you can start any kernel with it, not just Linux.
2892
2893	  The name comes from the similarity to the exec system call.
2894
2895	  It is an ongoing process to be certain the hardware in a machine
2896	  is properly shutdown, so do not be surprised if this code does not
2897	  initially work for you.  As of this writing the exact hardware
2898	  interface is strongly in flux, so no good recommendation can be
2899	  made.
2900
2901config CRASH_DUMP
2902	bool "Kernel crash dumps"
2903	help
2904	  Generate crash dump after being started by kexec.
2905	  This should be normally only set in special crash dump kernels
2906	  which are loaded in the main kernel with kexec-tools into
2907	  a specially reserved region and then later executed after
2908	  a crash by kdump/kexec. The crash dump kernel must be compiled
2909	  to a memory address not used by the main kernel or firmware using
2910	  PHYSICAL_START.
2911
2912config PHYSICAL_START
2913	hex "Physical address where the kernel is loaded"
2914	default "0xffffffff84000000"
2915	depends on CRASH_DUMP
2916	help
2917	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2918	  If you plan to use kernel for capturing the crash dump change
2919	  this value to start of the reserved region (the "X" value as
2920	  specified in the "crashkernel=YM@XM" command line boot parameter
2921	  passed to the panic-ed kernel).
2922
2923config SECCOMP
2924	bool "Enable seccomp to safely compute untrusted bytecode"
2925	depends on PROC_FS
2926	default y
2927	help
2928	  This kernel feature is useful for number crunching applications
2929	  that may need to compute untrusted bytecode during their
2930	  execution. By using pipes or other transports made available to
2931	  the process as file descriptors supporting the read/write
2932	  syscalls, it's possible to isolate those applications in
2933	  their own address space using seccomp. Once seccomp is
2934	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2935	  and the task is only allowed to execute a few safe syscalls
2936	  defined by each seccomp mode.
2937
2938	  If unsure, say Y. Only embedded should say N here.
2939
2940config MIPS_O32_FP64_SUPPORT
2941	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2942	depends on 32BIT || MIPS32_O32
2943	help
2944	  When this is enabled, the kernel will support use of 64-bit floating
2945	  point registers with binaries using the O32 ABI along with the
2946	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2947	  32-bit MIPS systems this support is at the cost of increasing the
2948	  size and complexity of the compiled FPU emulator. Thus if you are
2949	  running a MIPS32 system and know that none of your userland binaries
2950	  will require 64-bit floating point, you may wish to reduce the size
2951	  of your kernel & potentially improve FP emulation performance by
2952	  saying N here.
2953
2954	  Although binutils currently supports use of this flag the details
2955	  concerning its effect upon the O32 ABI in userland are still being
2956	  worked on. In order to avoid userland becoming dependant upon current
2957	  behaviour before the details have been finalised, this option should
2958	  be considered experimental and only enabled by those working upon
2959	  said details.
2960
2961	  If unsure, say N.
2962
2963config USE_OF
2964	bool
2965	select OF
2966	select OF_EARLY_FLATTREE
2967	select IRQ_DOMAIN
2968
2969config UHI_BOOT
2970	bool
2971
2972config BUILTIN_DTB
2973	bool
2974
2975choice
2976	prompt "Kernel appended dtb support" if USE_OF
2977	default MIPS_NO_APPENDED_DTB
2978
2979	config MIPS_NO_APPENDED_DTB
2980		bool "None"
2981		help
2982		  Do not enable appended dtb support.
2983
2984	config MIPS_ELF_APPENDED_DTB
2985		bool "vmlinux"
2986		help
2987		  With this option, the boot code will look for a device tree binary
2988		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2989		  it is empty and the DTB can be appended using binutils command
2990		  objcopy:
2991
2992		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2993
2994		  This is meant as a backward compatiblity convenience for those
2995		  systems with a bootloader that can't be upgraded to accommodate
2996		  the documented boot protocol using a device tree.
2997
2998	config MIPS_RAW_APPENDED_DTB
2999		bool "vmlinux.bin or vmlinuz.bin"
3000		help
3001		  With this option, the boot code will look for a device tree binary
3002		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3003		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3004
3005		  This is meant as a backward compatibility convenience for those
3006		  systems with a bootloader that can't be upgraded to accommodate
3007		  the documented boot protocol using a device tree.
3008
3009		  Beware that there is very little in terms of protection against
3010		  this option being confused by leftover garbage in memory that might
3011		  look like a DTB header after a reboot if no actual DTB is appended
3012		  to vmlinux.bin.  Do not leave this option active in a production kernel
3013		  if you don't intend to always append a DTB.
3014endchoice
3015
3016choice
3017	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3018	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3019					 !MIPS_MALTA && \
3020					 !CAVIUM_OCTEON_SOC
3021	default MIPS_CMDLINE_FROM_BOOTLOADER
3022
3023	config MIPS_CMDLINE_FROM_DTB
3024		depends on USE_OF
3025		bool "Dtb kernel arguments if available"
3026
3027	config MIPS_CMDLINE_DTB_EXTEND
3028		depends on USE_OF
3029		bool "Extend dtb kernel arguments with bootloader arguments"
3030
3031	config MIPS_CMDLINE_FROM_BOOTLOADER
3032		bool "Bootloader kernel arguments if available"
3033
3034	config MIPS_CMDLINE_BUILTIN_EXTEND
3035		depends on CMDLINE_BOOL
3036		bool "Extend builtin kernel arguments with bootloader arguments"
3037endchoice
3038
3039endmenu
3040
3041config LOCKDEP_SUPPORT
3042	bool
3043	default y
3044
3045config STACKTRACE_SUPPORT
3046	bool
3047	default y
3048
3049config PGTABLE_LEVELS
3050	int
3051	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3052	default 3 if 64BIT && !PAGE_SIZE_64KB
3053	default 2
3054
3055config MIPS_AUTO_PFN_OFFSET
3056	bool
3057
3058menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3059
3060config PCI_DRIVERS_GENERIC
3061	select PCI_DOMAINS_GENERIC if PCI
3062	bool
3063
3064config PCI_DRIVERS_LEGACY
3065	def_bool !PCI_DRIVERS_GENERIC
3066	select NO_GENERIC_PCI_IOPORT_MAP
3067	select PCI_DOMAINS if PCI
3068
3069#
3070# ISA support is now enabled via select.  Too many systems still have the one
3071# or other ISA chip on the board that users don't know about so don't expect
3072# users to choose the right thing ...
3073#
3074config ISA
3075	bool
3076
3077config TC
3078	bool "TURBOchannel support"
3079	depends on MACH_DECSTATION
3080	help
3081	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3082	  processors.  TURBOchannel programming specifications are available
3083	  at:
3084	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3085	  and:
3086	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3087	  Linux driver support status is documented at:
3088	  <http://www.linux-mips.org/wiki/DECstation>
3089
3090config MMU
3091	bool
3092	default y
3093
3094config ARCH_MMAP_RND_BITS_MIN
3095	default 12 if 64BIT
3096	default 8
3097
3098config ARCH_MMAP_RND_BITS_MAX
3099	default 18 if 64BIT
3100	default 15
3101
3102config ARCH_MMAP_RND_COMPAT_BITS_MIN
3103	default 8
3104
3105config ARCH_MMAP_RND_COMPAT_BITS_MAX
3106	default 15
3107
3108config I8253
3109	bool
3110	select CLKSRC_I8253
3111	select CLKEVT_I8253
3112	select MIPS_EXTERNAL_TIMER
3113
3114config ZONE_DMA
3115	bool
3116
3117config ZONE_DMA32
3118	bool
3119
3120endmenu
3121
3122config TRAD_SIGNALS
3123	bool
3124
3125config MIPS32_COMPAT
3126	bool
3127
3128config COMPAT
3129	bool
3130
3131config SYSVIPC_COMPAT
3132	bool
3133
3134config MIPS32_O32
3135	bool "Kernel support for o32 binaries"
3136	depends on 64BIT
3137	select ARCH_WANT_OLD_COMPAT_IPC
3138	select COMPAT
3139	select MIPS32_COMPAT
3140	select SYSVIPC_COMPAT if SYSVIPC
3141	help
3142	  Select this option if you want to run o32 binaries.  These are pure
3143	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3144	  existing binaries are in this format.
3145
3146	  If unsure, say Y.
3147
3148config MIPS32_N32
3149	bool "Kernel support for n32 binaries"
3150	depends on 64BIT
3151	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3152	select COMPAT
3153	select MIPS32_COMPAT
3154	select SYSVIPC_COMPAT if SYSVIPC
3155	help
3156	  Select this option if you want to run n32 binaries.  These are
3157	  64-bit binaries using 32-bit quantities for addressing and certain
3158	  data that would normally be 64-bit.  They are used in special
3159	  cases.
3160
3161	  If unsure, say N.
3162
3163config BINFMT_ELF32
3164	bool
3165	default y if MIPS32_O32 || MIPS32_N32
3166	select ELFCORE
3167
3168menu "Power management options"
3169
3170config ARCH_HIBERNATION_POSSIBLE
3171	def_bool y
3172	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3173
3174config ARCH_SUSPEND_POSSIBLE
3175	def_bool y
3176	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3177
3178source "kernel/power/Kconfig"
3179
3180endmenu
3181
3182config MIPS_EXTERNAL_TIMER
3183	bool
3184
3185menu "CPU Power Management"
3186
3187if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3188source "drivers/cpufreq/Kconfig"
3189endif
3190
3191source "drivers/cpuidle/Kconfig"
3192
3193endmenu
3194
3195source "drivers/firmware/Kconfig"
3196
3197source "arch/mips/kvm/Kconfig"
3198