xref: /openbmc/linux/arch/mips/Kconfig (revision 0a671dc5)
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_SUPPORTS_UPROBES
11	select ARCH_USE_BUILTIN_BSWAP
12	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
13	select ARCH_USE_QUEUED_RWLOCKS
14	select ARCH_USE_QUEUED_SPINLOCKS
15	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
16	select ARCH_WANT_IPC_PARSE_VERSION
17	select BUILDTIME_EXTABLE_SORT
18	select CLONE_BACKWARDS
19	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
20	select CPU_PM if CPU_IDLE
21	select GENERIC_ATOMIC64 if !64BIT
22	select GENERIC_CLOCKEVENTS
23	select GENERIC_CMOS_UPDATE
24	select GENERIC_CPU_AUTOPROBE
25	select GENERIC_GETTIMEOFDAY
26	select GENERIC_IOMAP
27	select GENERIC_IRQ_PROBE
28	select GENERIC_IRQ_SHOW
29	select GENERIC_ISA_DMA if EISA
30	select GENERIC_LIB_ASHLDI3
31	select GENERIC_LIB_ASHRDI3
32	select GENERIC_LIB_CMPDI2
33	select GENERIC_LIB_LSHRDI3
34	select GENERIC_LIB_UCMPDI2
35	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
36	select GENERIC_SMP_IDLE_THREAD
37	select GENERIC_TIME_VSYSCALL
38	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
39	select HANDLE_DOMAIN_IRQ
40	select HAVE_ARCH_COMPILER_H
41	select HAVE_ARCH_JUMP_LABEL
42	select HAVE_ARCH_KGDB
43	select HAVE_ARCH_MMAP_RND_BITS if MMU
44	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
45	select HAVE_ARCH_SECCOMP_FILTER
46	select HAVE_ARCH_TRACEHOOK
47	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
48	select HAVE_ASM_MODVERSIONS
49	select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
50	select HAVE_CONTEXT_TRACKING
51	select HAVE_COPY_THREAD_TLS
52	select HAVE_C_RECORDMCOUNT
53	select HAVE_DEBUG_KMEMLEAK
54	select HAVE_DEBUG_STACKOVERFLOW
55	select HAVE_DMA_CONTIGUOUS
56	select HAVE_DYNAMIC_FTRACE
57	select HAVE_EXIT_THREAD
58	select HAVE_FAST_GUP
59	select HAVE_FTRACE_MCOUNT_RECORD
60	select HAVE_FUNCTION_GRAPH_TRACER
61	select HAVE_FUNCTION_TRACER
62	select HAVE_IDE
63	select HAVE_IOREMAP_PROT
64	select HAVE_IRQ_EXIT_ON_IRQ_STACK
65	select HAVE_IRQ_TIME_ACCOUNTING
66	select HAVE_KPROBES
67	select HAVE_KRETPROBES
68	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
69	select HAVE_MEMBLOCK_NODE_MAP
70	select HAVE_MOD_ARCH_SPECIFIC
71	select HAVE_NMI
72	select HAVE_OPROFILE
73	select HAVE_PERF_EVENTS
74	select HAVE_REGS_AND_STACK_ACCESS_API
75	select HAVE_RSEQ
76	select HAVE_STACKPROTECTOR
77	select HAVE_SYSCALL_TRACEPOINTS
78	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
79	select HAVE_GENERIC_VDSO
80	select IRQ_FORCED_THREADING
81	select ISA if EISA
82	select MODULES_USE_ELF_RELA if MODULES && 64BIT
83	select MODULES_USE_ELF_REL if MODULES
84	select PERF_USE_VMALLOC
85	select RTC_LIB
86	select SYSCTL_EXCEPTION_TRACE
87	select VIRT_TO_BUS
88	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
89
90menu "Machine selection"
91
92choice
93	prompt "System type"
94	default MIPS_GENERIC
95
96config MIPS_GENERIC
97	bool "Generic board-agnostic MIPS kernel"
98	select BOOT_RAW
99	select BUILTIN_DTB
100	select CEVT_R4K
101	select CLKSRC_MIPS_GIC
102	select COMMON_CLK
103	select CPU_MIPSR2_IRQ_VI
104	select CPU_MIPSR2_IRQ_EI
105	select CSRC_R4K
106	select DMA_PERDEV_COHERENT
107	select HAVE_PCI
108	select IRQ_MIPS_CPU
109	select LIBFDT
110	select MIPS_AUTO_PFN_OFFSET
111	select MIPS_CPU_SCACHE
112	select MIPS_GIC
113	select MIPS_L1_CACHE_SHIFT_7
114	select NO_EXCEPT_FILL
115	select PCI_DRIVERS_GENERIC
116	select PINCTRL
117	select SMP_UP if SMP
118	select SWAP_IO_SPACE
119	select SYS_HAS_CPU_MIPS32_R1
120	select SYS_HAS_CPU_MIPS32_R2
121	select SYS_HAS_CPU_MIPS32_R6
122	select SYS_HAS_CPU_MIPS64_R1
123	select SYS_HAS_CPU_MIPS64_R2
124	select SYS_HAS_CPU_MIPS64_R6
125	select SYS_SUPPORTS_32BIT_KERNEL
126	select SYS_SUPPORTS_64BIT_KERNEL
127	select SYS_SUPPORTS_BIG_ENDIAN
128	select SYS_SUPPORTS_HIGHMEM
129	select SYS_SUPPORTS_LITTLE_ENDIAN
130	select SYS_SUPPORTS_MICROMIPS
131	select SYS_SUPPORTS_MIPS_CPS
132	select SYS_SUPPORTS_MIPS16
133	select SYS_SUPPORTS_MULTITHREADING
134	select SYS_SUPPORTS_RELOCATABLE
135	select SYS_SUPPORTS_SMARTMIPS
136	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
137	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
138	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
139	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
140	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
141	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
142	select USE_OF
143	select UHI_BOOT
144	help
145	  Select this to build a kernel which aims to support multiple boards,
146	  generally using a flattened device tree passed from the bootloader
147	  using the boot protocol defined in the UHI (Unified Hosting
148	  Interface) specification.
149
150config MIPS_ALCHEMY
151	bool "Alchemy processor based machines"
152	select PHYS_ADDR_T_64BIT
153	select CEVT_R4K
154	select CSRC_R4K
155	select IRQ_MIPS_CPU
156	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
157	select SYS_HAS_CPU_MIPS32_R1
158	select SYS_SUPPORTS_32BIT_KERNEL
159	select SYS_SUPPORTS_APM_EMULATION
160	select GPIOLIB
161	select SYS_SUPPORTS_ZBOOT
162	select COMMON_CLK
163
164config AR7
165	bool "Texas Instruments AR7"
166	select BOOT_ELF32
167	select DMA_NONCOHERENT
168	select CEVT_R4K
169	select CSRC_R4K
170	select IRQ_MIPS_CPU
171	select NO_EXCEPT_FILL
172	select SWAP_IO_SPACE
173	select SYS_HAS_CPU_MIPS32_R1
174	select SYS_HAS_EARLY_PRINTK
175	select SYS_SUPPORTS_32BIT_KERNEL
176	select SYS_SUPPORTS_LITTLE_ENDIAN
177	select SYS_SUPPORTS_MIPS16
178	select SYS_SUPPORTS_ZBOOT_UART16550
179	select GPIOLIB
180	select VLYNQ
181	select HAVE_CLK
182	help
183	  Support for the Texas Instruments AR7 System-on-a-Chip
184	  family: TNETD7100, 7200 and 7300.
185
186config ATH25
187	bool "Atheros AR231x/AR531x SoC support"
188	select CEVT_R4K
189	select CSRC_R4K
190	select DMA_NONCOHERENT
191	select IRQ_MIPS_CPU
192	select IRQ_DOMAIN
193	select SYS_HAS_CPU_MIPS32_R1
194	select SYS_SUPPORTS_BIG_ENDIAN
195	select SYS_SUPPORTS_32BIT_KERNEL
196	select SYS_HAS_EARLY_PRINTK
197	help
198	  Support for Atheros AR231x and Atheros AR531x based boards
199
200config ATH79
201	bool "Atheros AR71XX/AR724X/AR913X based boards"
202	select ARCH_HAS_RESET_CONTROLLER
203	select BOOT_RAW
204	select CEVT_R4K
205	select CSRC_R4K
206	select DMA_NONCOHERENT
207	select GPIOLIB
208	select PINCTRL
209	select HAVE_CLK
210	select COMMON_CLK
211	select CLKDEV_LOOKUP
212	select IRQ_MIPS_CPU
213	select SYS_HAS_CPU_MIPS32_R2
214	select SYS_HAS_EARLY_PRINTK
215	select SYS_SUPPORTS_32BIT_KERNEL
216	select SYS_SUPPORTS_BIG_ENDIAN
217	select SYS_SUPPORTS_MIPS16
218	select SYS_SUPPORTS_ZBOOT_UART_PROM
219	select USE_OF
220	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
221	help
222	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
223
224config BMIPS_GENERIC
225	bool "Broadcom Generic BMIPS kernel"
226	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
227	select ARCH_HAS_PHYS_TO_DMA
228	select BOOT_RAW
229	select NO_EXCEPT_FILL
230	select USE_OF
231	select CEVT_R4K
232	select CSRC_R4K
233	select SYNC_R4K
234	select COMMON_CLK
235	select BCM6345_L1_IRQ
236	select BCM7038_L1_IRQ
237	select BCM7120_L2_IRQ
238	select BRCMSTB_L2_IRQ
239	select IRQ_MIPS_CPU
240	select DMA_NONCOHERENT
241	select SYS_SUPPORTS_32BIT_KERNEL
242	select SYS_SUPPORTS_LITTLE_ENDIAN
243	select SYS_SUPPORTS_BIG_ENDIAN
244	select SYS_SUPPORTS_HIGHMEM
245	select SYS_HAS_CPU_BMIPS32_3300
246	select SYS_HAS_CPU_BMIPS4350
247	select SYS_HAS_CPU_BMIPS4380
248	select SYS_HAS_CPU_BMIPS5000
249	select SWAP_IO_SPACE
250	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
251	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
252	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
253	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
254	select HARDIRQS_SW_RESEND
255	help
256	  Build a generic DT-based kernel image that boots on select
257	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
258	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
259	  must be set appropriately for your board.
260
261config BCM47XX
262	bool "Broadcom BCM47XX based boards"
263	select BOOT_RAW
264	select CEVT_R4K
265	select CSRC_R4K
266	select DMA_NONCOHERENT
267	select HAVE_PCI
268	select IRQ_MIPS_CPU
269	select SYS_HAS_CPU_MIPS32_R1
270	select NO_EXCEPT_FILL
271	select SYS_SUPPORTS_32BIT_KERNEL
272	select SYS_SUPPORTS_LITTLE_ENDIAN
273	select SYS_SUPPORTS_MIPS16
274	select SYS_SUPPORTS_ZBOOT
275	select SYS_HAS_EARLY_PRINTK
276	select USE_GENERIC_EARLY_PRINTK_8250
277	select GPIOLIB
278	select LEDS_GPIO_REGISTER
279	select BCM47XX_NVRAM
280	select BCM47XX_SPROM
281	select BCM47XX_SSB if !BCM47XX_BCMA
282	help
283	  Support for BCM47XX based boards
284
285config BCM63XX
286	bool "Broadcom BCM63XX based boards"
287	select BOOT_RAW
288	select CEVT_R4K
289	select CSRC_R4K
290	select SYNC_R4K
291	select DMA_NONCOHERENT
292	select IRQ_MIPS_CPU
293	select SYS_SUPPORTS_32BIT_KERNEL
294	select SYS_SUPPORTS_BIG_ENDIAN
295	select SYS_HAS_EARLY_PRINTK
296	select SWAP_IO_SPACE
297	select GPIOLIB
298	select HAVE_CLK
299	select MIPS_L1_CACHE_SHIFT_4
300	select CLKDEV_LOOKUP
301	help
302	  Support for BCM63XX based boards
303
304config MIPS_COBALT
305	bool "Cobalt Server"
306	select CEVT_R4K
307	select CSRC_R4K
308	select CEVT_GT641XX
309	select DMA_NONCOHERENT
310	select FORCE_PCI
311	select I8253
312	select I8259
313	select IRQ_MIPS_CPU
314	select IRQ_GT641XX
315	select PCI_GT64XXX_PCI0
316	select SYS_HAS_CPU_NEVADA
317	select SYS_HAS_EARLY_PRINTK
318	select SYS_SUPPORTS_32BIT_KERNEL
319	select SYS_SUPPORTS_64BIT_KERNEL
320	select SYS_SUPPORTS_LITTLE_ENDIAN
321	select USE_GENERIC_EARLY_PRINTK_8250
322
323config MACH_DECSTATION
324	bool "DECstations"
325	select BOOT_ELF32
326	select CEVT_DS1287
327	select CEVT_R4K if CPU_R4X00
328	select CSRC_IOASIC
329	select CSRC_R4K if CPU_R4X00
330	select CPU_DADDI_WORKAROUNDS if 64BIT
331	select CPU_R4000_WORKAROUNDS if 64BIT
332	select CPU_R4400_WORKAROUNDS if 64BIT
333	select DMA_NONCOHERENT
334	select NO_IOPORT_MAP
335	select IRQ_MIPS_CPU
336	select SYS_HAS_CPU_R3000
337	select SYS_HAS_CPU_R4X00
338	select SYS_SUPPORTS_32BIT_KERNEL
339	select SYS_SUPPORTS_64BIT_KERNEL
340	select SYS_SUPPORTS_LITTLE_ENDIAN
341	select SYS_SUPPORTS_128HZ
342	select SYS_SUPPORTS_256HZ
343	select SYS_SUPPORTS_1024HZ
344	select MIPS_L1_CACHE_SHIFT_4
345	help
346	  This enables support for DEC's MIPS based workstations.  For details
347	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
348	  DECstation porting pages on <http://decstation.unix-ag.org/>.
349
350	  If you have one of the following DECstation Models you definitely
351	  want to choose R4xx0 for the CPU Type:
352
353		DECstation 5000/50
354		DECstation 5000/150
355		DECstation 5000/260
356		DECsystem 5900/260
357
358	  otherwise choose R3000.
359
360config MACH_JAZZ
361	bool "Jazz family of machines"
362	select ARCH_MIGHT_HAVE_PC_PARPORT
363	select ARCH_MIGHT_HAVE_PC_SERIO
364	select FW_ARC
365	select FW_ARC32
366	select ARCH_MAY_HAVE_PC_FDC
367	select CEVT_R4K
368	select CSRC_R4K
369	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
370	select GENERIC_ISA_DMA
371	select HAVE_PCSPKR_PLATFORM
372	select IRQ_MIPS_CPU
373	select I8253
374	select I8259
375	select ISA
376	select SYS_HAS_CPU_R4X00
377	select SYS_SUPPORTS_32BIT_KERNEL
378	select SYS_SUPPORTS_64BIT_KERNEL
379	select SYS_SUPPORTS_100HZ
380	help
381	  This a family of machines based on the MIPS R4030 chipset which was
382	  used by several vendors to build RISC/os and Windows NT workstations.
383	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
384	  Olivetti M700-10 workstations.
385
386config MACH_INGENIC
387	bool "Ingenic SoC based machines"
388	select SYS_SUPPORTS_32BIT_KERNEL
389	select SYS_SUPPORTS_LITTLE_ENDIAN
390	select SYS_SUPPORTS_ZBOOT_UART16550
391	select CPU_SUPPORTS_HUGEPAGES
392	select DMA_NONCOHERENT
393	select IRQ_MIPS_CPU
394	select PINCTRL
395	select GPIOLIB
396	select COMMON_CLK
397	select GENERIC_IRQ_CHIP
398	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
399	select USE_OF
400	select LIBFDT
401
402config LANTIQ
403	bool "Lantiq based platforms"
404	select DMA_NONCOHERENT
405	select IRQ_MIPS_CPU
406	select CEVT_R4K
407	select CSRC_R4K
408	select SYS_HAS_CPU_MIPS32_R1
409	select SYS_HAS_CPU_MIPS32_R2
410	select SYS_SUPPORTS_BIG_ENDIAN
411	select SYS_SUPPORTS_32BIT_KERNEL
412	select SYS_SUPPORTS_MIPS16
413	select SYS_SUPPORTS_MULTITHREADING
414	select SYS_SUPPORTS_VPE_LOADER
415	select SYS_HAS_EARLY_PRINTK
416	select GPIOLIB
417	select SWAP_IO_SPACE
418	select BOOT_RAW
419	select CLKDEV_LOOKUP
420	select USE_OF
421	select PINCTRL
422	select PINCTRL_LANTIQ
423	select ARCH_HAS_RESET_CONTROLLER
424	select RESET_CONTROLLER
425
426config LASAT
427	bool "LASAT Networks platforms"
428	select CEVT_R4K
429	select CRC32
430	select CSRC_R4K
431	select DMA_NONCOHERENT
432	select SYS_HAS_EARLY_PRINTK
433	select HAVE_PCI
434	select IRQ_MIPS_CPU
435	select PCI_GT64XXX_PCI0
436	select MIPS_NILE4
437	select R5000_CPU_SCACHE
438	select SYS_HAS_CPU_R5000
439	select SYS_SUPPORTS_32BIT_KERNEL
440	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
441	select SYS_SUPPORTS_LITTLE_ENDIAN
442
443config MACH_LOONGSON32
444	bool "Loongson-1 family of machines"
445	select SYS_SUPPORTS_ZBOOT
446	help
447	  This enables support for the Loongson-1 family of machines.
448
449	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
450	  the Institute of Computing Technology (ICT), Chinese Academy of
451	  Sciences (CAS).
452
453config MACH_LOONGSON64
454	bool "Loongson-2/3 family of machines"
455	select SYS_SUPPORTS_ZBOOT
456	help
457	  This enables the support of Loongson-2/3 family of machines.
458
459	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
460	  family of multi-core CPUs. They are both 64-bit general-purpose
461	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
462	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
463	  in the People's Republic of China. The chief architect is Professor
464	  Weiwu Hu.
465
466config MACH_PISTACHIO
467	bool "IMG Pistachio SoC based boards"
468	select BOOT_ELF32
469	select BOOT_RAW
470	select CEVT_R4K
471	select CLKSRC_MIPS_GIC
472	select COMMON_CLK
473	select CSRC_R4K
474	select DMA_NONCOHERENT
475	select GPIOLIB
476	select IRQ_MIPS_CPU
477	select LIBFDT
478	select MFD_SYSCON
479	select MIPS_CPU_SCACHE
480	select MIPS_GIC
481	select PINCTRL
482	select REGULATOR
483	select SYS_HAS_CPU_MIPS32_R2
484	select SYS_SUPPORTS_32BIT_KERNEL
485	select SYS_SUPPORTS_LITTLE_ENDIAN
486	select SYS_SUPPORTS_MIPS_CPS
487	select SYS_SUPPORTS_MULTITHREADING
488	select SYS_SUPPORTS_RELOCATABLE
489	select SYS_SUPPORTS_ZBOOT
490	select SYS_HAS_EARLY_PRINTK
491	select USE_GENERIC_EARLY_PRINTK_8250
492	select USE_OF
493	help
494	  This enables support for the IMG Pistachio SoC platform.
495
496config MIPS_MALTA
497	bool "MIPS Malta board"
498	select ARCH_MAY_HAVE_PC_FDC
499	select ARCH_MIGHT_HAVE_PC_PARPORT
500	select ARCH_MIGHT_HAVE_PC_SERIO
501	select BOOT_ELF32
502	select BOOT_RAW
503	select BUILTIN_DTB
504	select CEVT_R4K
505	select CLKSRC_MIPS_GIC
506	select COMMON_CLK
507	select CSRC_R4K
508	select DMA_MAYBE_COHERENT
509	select GENERIC_ISA_DMA
510	select HAVE_PCSPKR_PLATFORM
511	select HAVE_PCI
512	select I8253
513	select I8259
514	select IRQ_MIPS_CPU
515	select LIBFDT
516	select MIPS_BONITO64
517	select MIPS_CPU_SCACHE
518	select MIPS_GIC
519	select MIPS_L1_CACHE_SHIFT_6
520	select MIPS_MSC
521	select PCI_GT64XXX_PCI0
522	select SMP_UP if SMP
523	select SWAP_IO_SPACE
524	select SYS_HAS_CPU_MIPS32_R1
525	select SYS_HAS_CPU_MIPS32_R2
526	select SYS_HAS_CPU_MIPS32_R3_5
527	select SYS_HAS_CPU_MIPS32_R5
528	select SYS_HAS_CPU_MIPS32_R6
529	select SYS_HAS_CPU_MIPS64_R1
530	select SYS_HAS_CPU_MIPS64_R2
531	select SYS_HAS_CPU_MIPS64_R6
532	select SYS_HAS_CPU_NEVADA
533	select SYS_HAS_CPU_RM7000
534	select SYS_SUPPORTS_32BIT_KERNEL
535	select SYS_SUPPORTS_64BIT_KERNEL
536	select SYS_SUPPORTS_BIG_ENDIAN
537	select SYS_SUPPORTS_HIGHMEM
538	select SYS_SUPPORTS_LITTLE_ENDIAN
539	select SYS_SUPPORTS_MICROMIPS
540	select SYS_SUPPORTS_MIPS16
541	select SYS_SUPPORTS_MIPS_CMP
542	select SYS_SUPPORTS_MIPS_CPS
543	select SYS_SUPPORTS_MULTITHREADING
544	select SYS_SUPPORTS_RELOCATABLE
545	select SYS_SUPPORTS_SMARTMIPS
546	select SYS_SUPPORTS_VPE_LOADER
547	select SYS_SUPPORTS_ZBOOT
548	select USE_OF
549	select ZONE_DMA32 if 64BIT
550	help
551	  This enables support for the MIPS Technologies Malta evaluation
552	  board.
553
554config MACH_PIC32
555	bool "Microchip PIC32 Family"
556	help
557	  This enables support for the Microchip PIC32 family of platforms.
558
559	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
560	  microcontrollers.
561
562config NEC_MARKEINS
563	bool "NEC EMMA2RH Mark-eins board"
564	select SOC_EMMA2RH
565	select HAVE_PCI
566	help
567	  This enables support for the NEC Electronics Mark-eins boards.
568
569config MACH_VR41XX
570	bool "NEC VR4100 series based machines"
571	select CEVT_R4K
572	select CSRC_R4K
573	select SYS_HAS_CPU_VR41XX
574	select SYS_SUPPORTS_MIPS16
575	select GPIOLIB
576
577config NXP_STB220
578	bool "NXP STB220 board"
579	select SOC_PNX833X
580	help
581	  Support for NXP Semiconductors STB220 Development Board.
582
583config NXP_STB225
584	bool "NXP 225 board"
585	select SOC_PNX833X
586	select SOC_PNX8335
587	help
588	  Support for NXP Semiconductors STB225 Development Board.
589
590config PMC_MSP
591	bool "PMC-Sierra MSP chipsets"
592	select CEVT_R4K
593	select CSRC_R4K
594	select DMA_NONCOHERENT
595	select SWAP_IO_SPACE
596	select NO_EXCEPT_FILL
597	select BOOT_RAW
598	select SYS_HAS_CPU_MIPS32_R1
599	select SYS_HAS_CPU_MIPS32_R2
600	select SYS_SUPPORTS_32BIT_KERNEL
601	select SYS_SUPPORTS_BIG_ENDIAN
602	select SYS_SUPPORTS_MIPS16
603	select IRQ_MIPS_CPU
604	select SERIAL_8250
605	select SERIAL_8250_CONSOLE
606	select USB_EHCI_BIG_ENDIAN_MMIO
607	select USB_EHCI_BIG_ENDIAN_DESC
608	help
609	  This adds support for the PMC-Sierra family of Multi-Service
610	  Processor System-On-A-Chips.  These parts include a number
611	  of integrated peripherals, interfaces and DSPs in addition to
612	  a variety of MIPS cores.
613
614config RALINK
615	bool "Ralink based machines"
616	select CEVT_R4K
617	select CSRC_R4K
618	select BOOT_RAW
619	select DMA_NONCOHERENT
620	select IRQ_MIPS_CPU
621	select USE_OF
622	select SYS_HAS_CPU_MIPS32_R1
623	select SYS_HAS_CPU_MIPS32_R2
624	select SYS_SUPPORTS_32BIT_KERNEL
625	select SYS_SUPPORTS_LITTLE_ENDIAN
626	select SYS_SUPPORTS_MIPS16
627	select SYS_HAS_EARLY_PRINTK
628	select CLKDEV_LOOKUP
629	select ARCH_HAS_RESET_CONTROLLER
630	select RESET_CONTROLLER
631
632config SGI_IP22
633	bool "SGI IP22 (Indy/Indigo2)"
634	select FW_ARC
635	select FW_ARC32
636	select ARCH_MIGHT_HAVE_PC_SERIO
637	select BOOT_ELF32
638	select CEVT_R4K
639	select CSRC_R4K
640	select DEFAULT_SGI_PARTITION
641	select DMA_NONCOHERENT
642	select HAVE_EISA
643	select I8253
644	select I8259
645	select IP22_CPU_SCACHE
646	select IRQ_MIPS_CPU
647	select GENERIC_ISA_DMA_SUPPORT_BROKEN
648	select SGI_HAS_I8042
649	select SGI_HAS_INDYDOG
650	select SGI_HAS_HAL2
651	select SGI_HAS_SEEQ
652	select SGI_HAS_WD93
653	select SGI_HAS_ZILOG
654	select SWAP_IO_SPACE
655	select SYS_HAS_CPU_R4X00
656	select SYS_HAS_CPU_R5000
657	#
658	# Disable EARLY_PRINTK for now since it leads to overwritten prom
659	# memory during early boot on some machines.
660	#
661	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
662	# for a more details discussion
663	#
664	# select SYS_HAS_EARLY_PRINTK
665	select SYS_SUPPORTS_32BIT_KERNEL
666	select SYS_SUPPORTS_64BIT_KERNEL
667	select SYS_SUPPORTS_BIG_ENDIAN
668	select MIPS_L1_CACHE_SHIFT_7
669	help
670	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
671	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
672	  that runs on these, say Y here.
673
674config SGI_IP27
675	bool "SGI IP27 (Origin200/2000)"
676	select ARCH_HAS_PHYS_TO_DMA
677	select FW_ARC
678	select FW_ARC64
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 FW_ARC
702	select FW_ARC64
703	select ARCH_MIGHT_HAVE_PC_SERIO
704	select BOOT_ELF64
705	select CEVT_R4K
706	select CSRC_R4K
707	select DEFAULT_SGI_PARTITION
708	select DMA_NONCOHERENT
709	select GENERIC_ISA_DMA_SUPPORT_BROKEN
710	select IRQ_MIPS_CPU
711	select HAVE_EISA
712	select I8253
713	select I8259
714	select SGI_HAS_I8042
715	select SGI_HAS_INDYDOG
716	select SGI_HAS_HAL2
717	select SGI_HAS_SEEQ
718	select SGI_HAS_WD93
719	select SGI_HAS_ZILOG
720	select SWAP_IO_SPACE
721	select SYS_HAS_CPU_R10000
722	#
723	# Disable EARLY_PRINTK for now since it leads to overwritten prom
724	# memory during early boot on some machines.
725	#
726	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
727	# for a more details discussion
728	#
729	# select SYS_HAS_EARLY_PRINTK
730	select SYS_SUPPORTS_64BIT_KERNEL
731	select SYS_SUPPORTS_BIG_ENDIAN
732	select MIPS_L1_CACHE_SHIFT_7
733	help
734	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
735	  kernel that runs on these, say Y here.
736
737config SGI_IP32
738	bool "SGI IP32 (O2)"
739	select ARCH_HAS_PHYS_TO_DMA
740	select FW_ARC
741	select FW_ARC32
742	select BOOT_ELF32
743	select CEVT_R4K
744	select CSRC_R4K
745	select DMA_NONCOHERENT
746	select HAVE_PCI
747	select IRQ_MIPS_CPU
748	select R5000_CPU_SCACHE
749	select RM7000_CPU_SCACHE
750	select SYS_HAS_CPU_R5000
751	select SYS_HAS_CPU_R10000 if BROKEN
752	select SYS_HAS_CPU_RM7000
753	select SYS_HAS_CPU_NEVADA
754	select SYS_SUPPORTS_64BIT_KERNEL
755	select SYS_SUPPORTS_BIG_ENDIAN
756	help
757	  If you want this kernel to run on SGI O2 workstation, say Y here.
758
759config SIBYTE_CRHINE
760	bool "Sibyte BCM91120C-CRhine"
761	select BOOT_ELF32
762	select SIBYTE_BCM1120
763	select SWAP_IO_SPACE
764	select SYS_HAS_CPU_SB1
765	select SYS_SUPPORTS_BIG_ENDIAN
766	select SYS_SUPPORTS_LITTLE_ENDIAN
767
768config SIBYTE_CARMEL
769	bool "Sibyte BCM91120x-Carmel"
770	select BOOT_ELF32
771	select SIBYTE_BCM1120
772	select SWAP_IO_SPACE
773	select SYS_HAS_CPU_SB1
774	select SYS_SUPPORTS_BIG_ENDIAN
775	select SYS_SUPPORTS_LITTLE_ENDIAN
776
777config SIBYTE_CRHONE
778	bool "Sibyte BCM91125C-CRhone"
779	select BOOT_ELF32
780	select SIBYTE_BCM1125
781	select SWAP_IO_SPACE
782	select SYS_HAS_CPU_SB1
783	select SYS_SUPPORTS_BIG_ENDIAN
784	select SYS_SUPPORTS_HIGHMEM
785	select SYS_SUPPORTS_LITTLE_ENDIAN
786
787config SIBYTE_RHONE
788	bool "Sibyte BCM91125E-Rhone"
789	select BOOT_ELF32
790	select SIBYTE_BCM1125H
791	select SWAP_IO_SPACE
792	select SYS_HAS_CPU_SB1
793	select SYS_SUPPORTS_BIG_ENDIAN
794	select SYS_SUPPORTS_LITTLE_ENDIAN
795
796config SIBYTE_SWARM
797	bool "Sibyte BCM91250A-SWARM"
798	select BOOT_ELF32
799	select HAVE_PATA_PLATFORM
800	select SIBYTE_SB1250
801	select SWAP_IO_SPACE
802	select SYS_HAS_CPU_SB1
803	select SYS_SUPPORTS_BIG_ENDIAN
804	select SYS_SUPPORTS_HIGHMEM
805	select SYS_SUPPORTS_LITTLE_ENDIAN
806	select ZONE_DMA32 if 64BIT
807	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
808
809config SIBYTE_LITTLESUR
810	bool "Sibyte BCM91250C2-LittleSur"
811	select BOOT_ELF32
812	select HAVE_PATA_PLATFORM
813	select SIBYTE_SB1250
814	select SWAP_IO_SPACE
815	select SYS_HAS_CPU_SB1
816	select SYS_SUPPORTS_BIG_ENDIAN
817	select SYS_SUPPORTS_HIGHMEM
818	select SYS_SUPPORTS_LITTLE_ENDIAN
819	select ZONE_DMA32 if 64BIT
820
821config SIBYTE_SENTOSA
822	bool "Sibyte BCM91250E-Sentosa"
823	select BOOT_ELF32
824	select SIBYTE_SB1250
825	select SWAP_IO_SPACE
826	select SYS_HAS_CPU_SB1
827	select SYS_SUPPORTS_BIG_ENDIAN
828	select SYS_SUPPORTS_LITTLE_ENDIAN
829	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
830
831config SIBYTE_BIGSUR
832	bool "Sibyte BCM91480B-BigSur"
833	select BOOT_ELF32
834	select NR_CPUS_DEFAULT_4
835	select SIBYTE_BCM1x80
836	select SWAP_IO_SPACE
837	select SYS_HAS_CPU_SB1
838	select SYS_SUPPORTS_BIG_ENDIAN
839	select SYS_SUPPORTS_HIGHMEM
840	select SYS_SUPPORTS_LITTLE_ENDIAN
841	select ZONE_DMA32 if 64BIT
842	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
843
844config SNI_RM
845	bool "SNI RM200/300/400"
846	select FW_ARC if CPU_LITTLE_ENDIAN
847	select FW_ARC32 if CPU_LITTLE_ENDIAN
848	select FW_SNIPROM if CPU_BIG_ENDIAN
849	select ARCH_MAY_HAVE_PC_FDC
850	select ARCH_MIGHT_HAVE_PC_PARPORT
851	select ARCH_MIGHT_HAVE_PC_SERIO
852	select BOOT_ELF32
853	select CEVT_R4K
854	select CSRC_R4K
855	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
856	select DMA_NONCOHERENT
857	select GENERIC_ISA_DMA
858	select HAVE_EISA
859	select HAVE_PCSPKR_PLATFORM
860	select HAVE_PCI
861	select IRQ_MIPS_CPU
862	select I8253
863	select I8259
864	select ISA
865	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
866	select SYS_HAS_CPU_R4X00
867	select SYS_HAS_CPU_R5000
868	select SYS_HAS_CPU_R10000
869	select R5000_CPU_SCACHE
870	select SYS_HAS_EARLY_PRINTK
871	select SYS_SUPPORTS_32BIT_KERNEL
872	select SYS_SUPPORTS_64BIT_KERNEL
873	select SYS_SUPPORTS_BIG_ENDIAN
874	select SYS_SUPPORTS_HIGHMEM
875	select SYS_SUPPORTS_LITTLE_ENDIAN
876	help
877	  The SNI RM200/300/400 are MIPS-based machines manufactured by
878	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
879	  Technology and now in turn merged with Fujitsu.  Say Y here to
880	  support this machine type.
881
882config MACH_TX39XX
883	bool "Toshiba TX39 series based machines"
884
885config MACH_TX49XX
886	bool "Toshiba TX49 series based machines"
887
888config MIKROTIK_RB532
889	bool "Mikrotik RB532 boards"
890	select CEVT_R4K
891	select CSRC_R4K
892	select DMA_NONCOHERENT
893	select HAVE_PCI
894	select IRQ_MIPS_CPU
895	select SYS_HAS_CPU_MIPS32_R1
896	select SYS_SUPPORTS_32BIT_KERNEL
897	select SYS_SUPPORTS_LITTLE_ENDIAN
898	select SWAP_IO_SPACE
899	select BOOT_RAW
900	select GPIOLIB
901	select MIPS_L1_CACHE_SHIFT_4
902	help
903	  Support the Mikrotik(tm) RouterBoard 532 series,
904	  based on the IDT RC32434 SoC.
905
906config CAVIUM_OCTEON_SOC
907	bool "Cavium Networks Octeon SoC based boards"
908	select CEVT_R4K
909	select ARCH_HAS_PHYS_TO_DMA
910	select HAVE_RAPIDIO
911	select PHYS_ADDR_T_64BIT
912	select SYS_SUPPORTS_64BIT_KERNEL
913	select SYS_SUPPORTS_BIG_ENDIAN
914	select EDAC_SUPPORT
915	select EDAC_ATOMIC_SCRUB
916	select SYS_SUPPORTS_LITTLE_ENDIAN
917	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
918	select SYS_HAS_EARLY_PRINTK
919	select SYS_HAS_CPU_CAVIUM_OCTEON
920	select HAVE_PCI
921	select ZONE_DMA32
922	select HOLES_IN_ZONE
923	select GPIOLIB
924	select LIBFDT
925	select USE_OF
926	select ARCH_SPARSEMEM_ENABLE
927	select SYS_SUPPORTS_SMP
928	select NR_CPUS_DEFAULT_64
929	select MIPS_NR_CPU_NR_MAP_1024
930	select BUILTIN_DTB
931	select MTD_COMPLEX_MAPPINGS
932	select SWIOTLB
933	select SYS_SUPPORTS_RELOCATABLE
934	help
935	  This option supports all of the Octeon reference boards from Cavium
936	  Networks. It builds a kernel that dynamically determines the Octeon
937	  CPU type and supports all known board reference implementations.
938	  Some of the supported boards are:
939		EBT3000
940		EBH3000
941		EBH3100
942		Thunder
943		Kodama
944		Hikari
945	  Say Y here for most Octeon reference boards.
946
947config NLM_XLR_BOARD
948	bool "Netlogic XLR/XLS based systems"
949	select BOOT_ELF32
950	select NLM_COMMON
951	select SYS_HAS_CPU_XLR
952	select SYS_SUPPORTS_SMP
953	select HAVE_PCI
954	select SWAP_IO_SPACE
955	select SYS_SUPPORTS_32BIT_KERNEL
956	select SYS_SUPPORTS_64BIT_KERNEL
957	select PHYS_ADDR_T_64BIT
958	select SYS_SUPPORTS_BIG_ENDIAN
959	select SYS_SUPPORTS_HIGHMEM
960	select NR_CPUS_DEFAULT_32
961	select CEVT_R4K
962	select CSRC_R4K
963	select IRQ_MIPS_CPU
964	select ZONE_DMA32 if 64BIT
965	select SYNC_R4K
966	select SYS_HAS_EARLY_PRINTK
967	select SYS_SUPPORTS_ZBOOT
968	select SYS_SUPPORTS_ZBOOT_UART16550
969	help
970	  Support for systems based on Netlogic XLR and XLS processors.
971	  Say Y here if you have a XLR or XLS based board.
972
973config NLM_XLP_BOARD
974	bool "Netlogic XLP based systems"
975	select BOOT_ELF32
976	select NLM_COMMON
977	select SYS_HAS_CPU_XLP
978	select SYS_SUPPORTS_SMP
979	select HAVE_PCI
980	select SYS_SUPPORTS_32BIT_KERNEL
981	select SYS_SUPPORTS_64BIT_KERNEL
982	select PHYS_ADDR_T_64BIT
983	select GPIOLIB
984	select SYS_SUPPORTS_BIG_ENDIAN
985	select SYS_SUPPORTS_LITTLE_ENDIAN
986	select SYS_SUPPORTS_HIGHMEM
987	select NR_CPUS_DEFAULT_32
988	select CEVT_R4K
989	select CSRC_R4K
990	select IRQ_MIPS_CPU
991	select ZONE_DMA32 if 64BIT
992	select SYNC_R4K
993	select SYS_HAS_EARLY_PRINTK
994	select USE_OF
995	select SYS_SUPPORTS_ZBOOT
996	select SYS_SUPPORTS_ZBOOT_UART16550
997	help
998	  This board is based on Netlogic XLP Processor.
999	  Say Y here if you have a XLP based board.
1000
1001config MIPS_PARAVIRT
1002	bool "Para-Virtualized guest system"
1003	select CEVT_R4K
1004	select CSRC_R4K
1005	select SYS_SUPPORTS_64BIT_KERNEL
1006	select SYS_SUPPORTS_32BIT_KERNEL
1007	select SYS_SUPPORTS_BIG_ENDIAN
1008	select SYS_SUPPORTS_SMP
1009	select NR_CPUS_DEFAULT_4
1010	select SYS_HAS_EARLY_PRINTK
1011	select SYS_HAS_CPU_MIPS32_R2
1012	select SYS_HAS_CPU_MIPS64_R2
1013	select SYS_HAS_CPU_CAVIUM_OCTEON
1014	select HAVE_PCI
1015	select SWAP_IO_SPACE
1016	help
1017	  This option supports guest running under ????
1018
1019endchoice
1020
1021source "arch/mips/alchemy/Kconfig"
1022source "arch/mips/ath25/Kconfig"
1023source "arch/mips/ath79/Kconfig"
1024source "arch/mips/bcm47xx/Kconfig"
1025source "arch/mips/bcm63xx/Kconfig"
1026source "arch/mips/bmips/Kconfig"
1027source "arch/mips/generic/Kconfig"
1028source "arch/mips/jazz/Kconfig"
1029source "arch/mips/jz4740/Kconfig"
1030source "arch/mips/lantiq/Kconfig"
1031source "arch/mips/lasat/Kconfig"
1032source "arch/mips/pic32/Kconfig"
1033source "arch/mips/pistachio/Kconfig"
1034source "arch/mips/pmcs-msp71xx/Kconfig"
1035source "arch/mips/ralink/Kconfig"
1036source "arch/mips/sgi-ip27/Kconfig"
1037source "arch/mips/sibyte/Kconfig"
1038source "arch/mips/txx9/Kconfig"
1039source "arch/mips/vr41xx/Kconfig"
1040source "arch/mips/cavium-octeon/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_CONSOLE
1357	bool "ARC console support"
1358	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1359
1360config ARC_MEMORY
1361	bool
1362	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1363	default y
1364
1365config ARC_PROMLIB
1366	bool
1367	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1368	default y
1369
1370config FW_ARC64
1371	bool
1372
1373config BOOT_ELF64
1374	bool
1375
1376menu "CPU selection"
1377
1378choice
1379	prompt "CPU type"
1380	default CPU_R4X00
1381
1382config CPU_LOONGSON3
1383	bool "Loongson 3 CPU"
1384	depends on SYS_HAS_CPU_LOONGSON3
1385	select ARCH_HAS_PHYS_TO_DMA
1386	select CPU_SUPPORTS_64BIT_KERNEL
1387	select CPU_SUPPORTS_HIGHMEM
1388	select CPU_SUPPORTS_HUGEPAGES
1389	select CPU_HAS_LOAD_STORE_LR
1390	select WEAK_ORDERING
1391	select WEAK_REORDERING_BEYOND_LLSC
1392	select MIPS_PGD_C0_CONTEXT
1393	select MIPS_L1_CACHE_SHIFT_6
1394	select GPIOLIB
1395	select SWIOTLB
1396	help
1397		The Loongson 3 processor implements the MIPS64R2 instruction
1398		set with many extensions.
1399
1400config LOONGSON3_ENHANCEMENT
1401	bool "New Loongson 3 CPU Enhancements"
1402	default n
1403	select CPU_MIPSR2
1404	select CPU_HAS_PREFETCH
1405	depends on CPU_LOONGSON3
1406	help
1407	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1408	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1409	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1410	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1411	  Fast TLB refill support, etc.
1412
1413	  This option enable those enhancements which are not probed at run
1414	  time. If you want a generic kernel to run on all Loongson 3 machines,
1415	  please say 'N' here. If you want a high-performance kernel to run on
1416	  new Loongson 3 machines only, please say 'Y' here.
1417
1418config CPU_LOONGSON3_WORKAROUNDS
1419	bool "Old Loongson 3 LLSC Workarounds"
1420	default y if SMP
1421	depends on CPU_LOONGSON3
1422	help
1423	  Loongson 3 processors have the llsc issues which require workarounds.
1424	  Without workarounds the system may hang unexpectedly.
1425
1426	  Newer Loongson 3 will fix these issues and no workarounds are needed.
1427	  The workarounds have no significant side effect on them but may
1428	  decrease the performance of the system so this option should be
1429	  disabled unless the kernel is intended to be run on old systems.
1430
1431	  If unsure, please say Y.
1432
1433config CPU_LOONGSON2E
1434	bool "Loongson 2E"
1435	depends on SYS_HAS_CPU_LOONGSON2E
1436	select CPU_LOONGSON2
1437	help
1438	  The Loongson 2E processor implements the MIPS III instruction set
1439	  with many extensions.
1440
1441	  It has an internal FPGA northbridge, which is compatible to
1442	  bonito64.
1443
1444config CPU_LOONGSON2F
1445	bool "Loongson 2F"
1446	depends on SYS_HAS_CPU_LOONGSON2F
1447	select CPU_LOONGSON2
1448	select GPIOLIB
1449	help
1450	  The Loongson 2F processor implements the MIPS III instruction set
1451	  with many extensions.
1452
1453	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1454	  have a similar programming interface with FPGA northbridge used in
1455	  Loongson2E.
1456
1457config CPU_LOONGSON1B
1458	bool "Loongson 1B"
1459	depends on SYS_HAS_CPU_LOONGSON1B
1460	select CPU_LOONGSON1
1461	select LEDS_GPIO_REGISTER
1462	help
1463	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1464	  Release 1 instruction set and part of the MIPS32 Release 2
1465	  instruction set.
1466
1467config CPU_LOONGSON1C
1468	bool "Loongson 1C"
1469	depends on SYS_HAS_CPU_LOONGSON1C
1470	select CPU_LOONGSON1
1471	select LEDS_GPIO_REGISTER
1472	help
1473	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1474	  Release 1 instruction set and part of the MIPS32 Release 2
1475	  instruction set.
1476
1477config CPU_MIPS32_R1
1478	bool "MIPS32 Release 1"
1479	depends on SYS_HAS_CPU_MIPS32_R1
1480	select CPU_HAS_PREFETCH
1481	select CPU_HAS_LOAD_STORE_LR
1482	select CPU_SUPPORTS_32BIT_KERNEL
1483	select CPU_SUPPORTS_HIGHMEM
1484	help
1485	  Choose this option to build a kernel for release 1 or later of the
1486	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1487	  MIPS processor are based on a MIPS32 processor.  If you know the
1488	  specific type of processor in your system, choose those that one
1489	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1490	  Release 2 of the MIPS32 architecture is available since several
1491	  years so chances are you even have a MIPS32 Release 2 processor
1492	  in which case you should choose CPU_MIPS32_R2 instead for better
1493	  performance.
1494
1495config CPU_MIPS32_R2
1496	bool "MIPS32 Release 2"
1497	depends on SYS_HAS_CPU_MIPS32_R2
1498	select CPU_HAS_PREFETCH
1499	select CPU_HAS_LOAD_STORE_LR
1500	select CPU_SUPPORTS_32BIT_KERNEL
1501	select CPU_SUPPORTS_HIGHMEM
1502	select CPU_SUPPORTS_MSA
1503	select HAVE_KVM
1504	help
1505	  Choose this option to build a kernel for release 2 or later of the
1506	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1507	  MIPS processor are based on a MIPS32 processor.  If you know the
1508	  specific type of processor in your system, choose those that one
1509	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1510
1511config CPU_MIPS32_R6
1512	bool "MIPS32 Release 6"
1513	depends on SYS_HAS_CPU_MIPS32_R6
1514	select CPU_HAS_PREFETCH
1515	select CPU_SUPPORTS_32BIT_KERNEL
1516	select CPU_SUPPORTS_HIGHMEM
1517	select CPU_SUPPORTS_MSA
1518	select HAVE_KVM
1519	select MIPS_O32_FP64_SUPPORT
1520	help
1521	  Choose this option to build a kernel for release 6 or later of the
1522	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1523	  family, are based on a MIPS32r6 processor. If you own an older
1524	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1525
1526config CPU_MIPS64_R1
1527	bool "MIPS64 Release 1"
1528	depends on SYS_HAS_CPU_MIPS64_R1
1529	select CPU_HAS_PREFETCH
1530	select CPU_HAS_LOAD_STORE_LR
1531	select CPU_SUPPORTS_32BIT_KERNEL
1532	select CPU_SUPPORTS_64BIT_KERNEL
1533	select CPU_SUPPORTS_HIGHMEM
1534	select CPU_SUPPORTS_HUGEPAGES
1535	help
1536	  Choose this option to build a kernel for release 1 or later of the
1537	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1538	  MIPS processor are based on a MIPS64 processor.  If you know the
1539	  specific type of processor in your system, choose those that one
1540	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1541	  Release 2 of the MIPS64 architecture is available since several
1542	  years so chances are you even have a MIPS64 Release 2 processor
1543	  in which case you should choose CPU_MIPS64_R2 instead for better
1544	  performance.
1545
1546config CPU_MIPS64_R2
1547	bool "MIPS64 Release 2"
1548	depends on SYS_HAS_CPU_MIPS64_R2
1549	select CPU_HAS_PREFETCH
1550	select CPU_HAS_LOAD_STORE_LR
1551	select CPU_SUPPORTS_32BIT_KERNEL
1552	select CPU_SUPPORTS_64BIT_KERNEL
1553	select CPU_SUPPORTS_HIGHMEM
1554	select CPU_SUPPORTS_HUGEPAGES
1555	select CPU_SUPPORTS_MSA
1556	select HAVE_KVM
1557	help
1558	  Choose this option to build a kernel for release 2 or later of the
1559	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1560	  MIPS processor are based on a MIPS64 processor.  If you know the
1561	  specific type of processor in your system, choose those that one
1562	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1563
1564config CPU_MIPS64_R6
1565	bool "MIPS64 Release 6"
1566	depends on SYS_HAS_CPU_MIPS64_R6
1567	select CPU_HAS_PREFETCH
1568	select CPU_SUPPORTS_32BIT_KERNEL
1569	select CPU_SUPPORTS_64BIT_KERNEL
1570	select CPU_SUPPORTS_HIGHMEM
1571	select CPU_SUPPORTS_HUGEPAGES
1572	select CPU_SUPPORTS_MSA
1573	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1574	select HAVE_KVM
1575	help
1576	  Choose this option to build a kernel for release 6 or later of the
1577	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1578	  family, are based on a MIPS64r6 processor. If you own an older
1579	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1580
1581config CPU_R3000
1582	bool "R3000"
1583	depends on SYS_HAS_CPU_R3000
1584	select CPU_HAS_WB
1585	select CPU_HAS_LOAD_STORE_LR
1586	select CPU_R3K_TLB
1587	select CPU_SUPPORTS_32BIT_KERNEL
1588	select CPU_SUPPORTS_HIGHMEM
1589	help
1590	  Please make sure to pick the right CPU type. Linux/MIPS is not
1591	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1592	  *not* work on R4000 machines and vice versa.  However, since most
1593	  of the supported machines have an R4000 (or similar) CPU, R4x00
1594	  might be a safe bet.  If the resulting kernel does not work,
1595	  try to recompile with R3000.
1596
1597config CPU_TX39XX
1598	bool "R39XX"
1599	depends on SYS_HAS_CPU_TX39XX
1600	select CPU_SUPPORTS_32BIT_KERNEL
1601	select CPU_HAS_LOAD_STORE_LR
1602	select CPU_R3K_TLB
1603
1604config CPU_VR41XX
1605	bool "R41xx"
1606	depends on SYS_HAS_CPU_VR41XX
1607	select CPU_SUPPORTS_32BIT_KERNEL
1608	select CPU_SUPPORTS_64BIT_KERNEL
1609	select CPU_HAS_LOAD_STORE_LR
1610	help
1611	  The options selects support for the NEC VR4100 series of processors.
1612	  Only choose this option if you have one of these processors as a
1613	  kernel built with this option will not run on any other type of
1614	  processor or vice versa.
1615
1616config CPU_R4X00
1617	bool "R4x00"
1618	depends on SYS_HAS_CPU_R4X00
1619	select CPU_SUPPORTS_32BIT_KERNEL
1620	select CPU_SUPPORTS_64BIT_KERNEL
1621	select CPU_SUPPORTS_HUGEPAGES
1622	select CPU_HAS_LOAD_STORE_LR
1623	help
1624	  MIPS Technologies R4000-series processors other than 4300, including
1625	  the R4000, R4400, R4600, and 4700.
1626
1627config CPU_TX49XX
1628	bool "R49XX"
1629	depends on SYS_HAS_CPU_TX49XX
1630	select CPU_HAS_PREFETCH
1631	select CPU_HAS_LOAD_STORE_LR
1632	select CPU_SUPPORTS_32BIT_KERNEL
1633	select CPU_SUPPORTS_64BIT_KERNEL
1634	select CPU_SUPPORTS_HUGEPAGES
1635
1636config CPU_R5000
1637	bool "R5000"
1638	depends on SYS_HAS_CPU_R5000
1639	select CPU_SUPPORTS_32BIT_KERNEL
1640	select CPU_SUPPORTS_64BIT_KERNEL
1641	select CPU_SUPPORTS_HUGEPAGES
1642	select CPU_HAS_LOAD_STORE_LR
1643	help
1644	  MIPS Technologies R5000-series processors other than the Nevada.
1645
1646config CPU_R5500
1647	bool "R5500"
1648	depends on SYS_HAS_CPU_R5500
1649	select CPU_SUPPORTS_32BIT_KERNEL
1650	select CPU_SUPPORTS_64BIT_KERNEL
1651	select CPU_SUPPORTS_HUGEPAGES
1652	select CPU_HAS_LOAD_STORE_LR
1653	help
1654	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1655	  instruction set.
1656
1657config CPU_NEVADA
1658	bool "RM52xx"
1659	depends on SYS_HAS_CPU_NEVADA
1660	select CPU_SUPPORTS_32BIT_KERNEL
1661	select CPU_SUPPORTS_64BIT_KERNEL
1662	select CPU_SUPPORTS_HUGEPAGES
1663	select CPU_HAS_LOAD_STORE_LR
1664	help
1665	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1666
1667config CPU_R10000
1668	bool "R10000"
1669	depends on SYS_HAS_CPU_R10000
1670	select CPU_HAS_PREFETCH
1671	select CPU_HAS_LOAD_STORE_LR
1672	select CPU_SUPPORTS_32BIT_KERNEL
1673	select CPU_SUPPORTS_64BIT_KERNEL
1674	select CPU_SUPPORTS_HIGHMEM
1675	select CPU_SUPPORTS_HUGEPAGES
1676	help
1677	  MIPS Technologies R10000-series processors.
1678
1679config CPU_RM7000
1680	bool "RM7000"
1681	depends on SYS_HAS_CPU_RM7000
1682	select CPU_HAS_PREFETCH
1683	select CPU_HAS_LOAD_STORE_LR
1684	select CPU_SUPPORTS_32BIT_KERNEL
1685	select CPU_SUPPORTS_64BIT_KERNEL
1686	select CPU_SUPPORTS_HIGHMEM
1687	select CPU_SUPPORTS_HUGEPAGES
1688
1689config CPU_SB1
1690	bool "SB1"
1691	depends on SYS_HAS_CPU_SB1
1692	select CPU_HAS_LOAD_STORE_LR
1693	select CPU_SUPPORTS_32BIT_KERNEL
1694	select CPU_SUPPORTS_64BIT_KERNEL
1695	select CPU_SUPPORTS_HIGHMEM
1696	select CPU_SUPPORTS_HUGEPAGES
1697	select WEAK_ORDERING
1698
1699config CPU_CAVIUM_OCTEON
1700	bool "Cavium Octeon processor"
1701	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1702	select CPU_HAS_PREFETCH
1703	select CPU_HAS_LOAD_STORE_LR
1704	select CPU_SUPPORTS_64BIT_KERNEL
1705	select WEAK_ORDERING
1706	select CPU_SUPPORTS_HIGHMEM
1707	select CPU_SUPPORTS_HUGEPAGES
1708	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1709	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1710	select MIPS_L1_CACHE_SHIFT_7
1711	select HAVE_KVM
1712	help
1713	  The Cavium Octeon processor is a highly integrated chip containing
1714	  many ethernet hardware widgets for networking tasks. The processor
1715	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1716	  Full details can be found at http://www.caviumnetworks.com.
1717
1718config CPU_BMIPS
1719	bool "Broadcom BMIPS"
1720	depends on SYS_HAS_CPU_BMIPS
1721	select CPU_MIPS32
1722	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1723	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1724	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1725	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1726	select CPU_SUPPORTS_32BIT_KERNEL
1727	select DMA_NONCOHERENT
1728	select IRQ_MIPS_CPU
1729	select SWAP_IO_SPACE
1730	select WEAK_ORDERING
1731	select CPU_SUPPORTS_HIGHMEM
1732	select CPU_HAS_PREFETCH
1733	select CPU_HAS_LOAD_STORE_LR
1734	select CPU_SUPPORTS_CPUFREQ
1735	select MIPS_EXTERNAL_TIMER
1736	help
1737	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1738
1739config CPU_XLR
1740	bool "Netlogic XLR SoC"
1741	depends on SYS_HAS_CPU_XLR
1742	select CPU_HAS_LOAD_STORE_LR
1743	select CPU_SUPPORTS_32BIT_KERNEL
1744	select CPU_SUPPORTS_64BIT_KERNEL
1745	select CPU_SUPPORTS_HIGHMEM
1746	select CPU_SUPPORTS_HUGEPAGES
1747	select WEAK_ORDERING
1748	select WEAK_REORDERING_BEYOND_LLSC
1749	help
1750	  Netlogic Microsystems XLR/XLS processors.
1751
1752config CPU_XLP
1753	bool "Netlogic XLP SoC"
1754	depends on SYS_HAS_CPU_XLP
1755	select CPU_SUPPORTS_32BIT_KERNEL
1756	select CPU_SUPPORTS_64BIT_KERNEL
1757	select CPU_SUPPORTS_HIGHMEM
1758	select WEAK_ORDERING
1759	select WEAK_REORDERING_BEYOND_LLSC
1760	select CPU_HAS_PREFETCH
1761	select CPU_HAS_LOAD_STORE_LR
1762	select CPU_MIPSR2
1763	select CPU_SUPPORTS_HUGEPAGES
1764	select MIPS_ASID_BITS_VARIABLE
1765	help
1766	  Netlogic Microsystems XLP processors.
1767endchoice
1768
1769config CPU_MIPS32_3_5_FEATURES
1770	bool "MIPS32 Release 3.5 Features"
1771	depends on SYS_HAS_CPU_MIPS32_R3_5
1772	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1773	help
1774	  Choose this option to build a kernel for release 2 or later of the
1775	  MIPS32 architecture including features from the 3.5 release such as
1776	  support for Enhanced Virtual Addressing (EVA).
1777
1778config CPU_MIPS32_3_5_EVA
1779	bool "Enhanced Virtual Addressing (EVA)"
1780	depends on CPU_MIPS32_3_5_FEATURES
1781	select EVA
1782	default y
1783	help
1784	  Choose this option if you want to enable the Enhanced Virtual
1785	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1786	  One of its primary benefits is an increase in the maximum size
1787	  of lowmem (up to 3GB). If unsure, say 'N' here.
1788
1789config CPU_MIPS32_R5_FEATURES
1790	bool "MIPS32 Release 5 Features"
1791	depends on SYS_HAS_CPU_MIPS32_R5
1792	depends on CPU_MIPS32_R2
1793	help
1794	  Choose this option to build a kernel for release 2 or later of the
1795	  MIPS32 architecture including features from release 5 such as
1796	  support for Extended Physical Addressing (XPA).
1797
1798config CPU_MIPS32_R5_XPA
1799	bool "Extended Physical Addressing (XPA)"
1800	depends on CPU_MIPS32_R5_FEATURES
1801	depends on !EVA
1802	depends on !PAGE_SIZE_4KB
1803	depends on SYS_SUPPORTS_HIGHMEM
1804	select XPA
1805	select HIGHMEM
1806	select PHYS_ADDR_T_64BIT
1807	default n
1808	help
1809	  Choose this option if you want to enable the Extended Physical
1810	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1811	  benefit is to increase physical addressing equal to or greater
1812	  than 40 bits. Note that this has the side effect of turning on
1813	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1814	  If unsure, say 'N' here.
1815
1816if CPU_LOONGSON2F
1817config CPU_NOP_WORKAROUNDS
1818	bool
1819
1820config CPU_JUMP_WORKAROUNDS
1821	bool
1822
1823config CPU_LOONGSON2F_WORKAROUNDS
1824	bool "Loongson 2F Workarounds"
1825	default y
1826	select CPU_NOP_WORKAROUNDS
1827	select CPU_JUMP_WORKAROUNDS
1828	help
1829	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1830	  require workarounds.  Without workarounds the system may hang
1831	  unexpectedly.  For more information please refer to the gas
1832	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1833
1834	  Loongson 2F03 and later have fixed these issues and no workarounds
1835	  are needed.  The workarounds have no significant side effect on them
1836	  but may decrease the performance of the system so this option should
1837	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1838	  systems.
1839
1840	  If unsure, please say Y.
1841endif # CPU_LOONGSON2F
1842
1843config SYS_SUPPORTS_ZBOOT
1844	bool
1845	select HAVE_KERNEL_GZIP
1846	select HAVE_KERNEL_BZIP2
1847	select HAVE_KERNEL_LZ4
1848	select HAVE_KERNEL_LZMA
1849	select HAVE_KERNEL_LZO
1850	select HAVE_KERNEL_XZ
1851
1852config SYS_SUPPORTS_ZBOOT_UART16550
1853	bool
1854	select SYS_SUPPORTS_ZBOOT
1855
1856config SYS_SUPPORTS_ZBOOT_UART_PROM
1857	bool
1858	select SYS_SUPPORTS_ZBOOT
1859
1860config CPU_LOONGSON2
1861	bool
1862	select CPU_SUPPORTS_32BIT_KERNEL
1863	select CPU_SUPPORTS_64BIT_KERNEL
1864	select CPU_SUPPORTS_HIGHMEM
1865	select CPU_SUPPORTS_HUGEPAGES
1866	select ARCH_HAS_PHYS_TO_DMA
1867	select CPU_HAS_LOAD_STORE_LR
1868
1869config CPU_LOONGSON1
1870	bool
1871	select CPU_MIPS32
1872	select CPU_MIPSR2
1873	select CPU_HAS_PREFETCH
1874	select CPU_HAS_LOAD_STORE_LR
1875	select CPU_SUPPORTS_32BIT_KERNEL
1876	select CPU_SUPPORTS_HIGHMEM
1877	select CPU_SUPPORTS_CPUFREQ
1878
1879config CPU_BMIPS32_3300
1880	select SMP_UP if SMP
1881	bool
1882
1883config CPU_BMIPS4350
1884	bool
1885	select SYS_SUPPORTS_SMP
1886	select SYS_SUPPORTS_HOTPLUG_CPU
1887
1888config CPU_BMIPS4380
1889	bool
1890	select MIPS_L1_CACHE_SHIFT_6
1891	select SYS_SUPPORTS_SMP
1892	select SYS_SUPPORTS_HOTPLUG_CPU
1893	select CPU_HAS_RIXI
1894
1895config CPU_BMIPS5000
1896	bool
1897	select MIPS_CPU_SCACHE
1898	select MIPS_L1_CACHE_SHIFT_7
1899	select SYS_SUPPORTS_SMP
1900	select SYS_SUPPORTS_HOTPLUG_CPU
1901	select CPU_HAS_RIXI
1902
1903config SYS_HAS_CPU_LOONGSON3
1904	bool
1905	select CPU_SUPPORTS_CPUFREQ
1906	select CPU_HAS_RIXI
1907
1908config SYS_HAS_CPU_LOONGSON2E
1909	bool
1910
1911config SYS_HAS_CPU_LOONGSON2F
1912	bool
1913	select CPU_SUPPORTS_CPUFREQ
1914	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1915	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1916
1917config SYS_HAS_CPU_LOONGSON1B
1918	bool
1919
1920config SYS_HAS_CPU_LOONGSON1C
1921	bool
1922
1923config SYS_HAS_CPU_MIPS32_R1
1924	bool
1925
1926config SYS_HAS_CPU_MIPS32_R2
1927	bool
1928
1929config SYS_HAS_CPU_MIPS32_R3_5
1930	bool
1931
1932config SYS_HAS_CPU_MIPS32_R5
1933	bool
1934	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1935
1936config SYS_HAS_CPU_MIPS32_R6
1937	bool
1938	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1939
1940config SYS_HAS_CPU_MIPS64_R1
1941	bool
1942
1943config SYS_HAS_CPU_MIPS64_R2
1944	bool
1945
1946config SYS_HAS_CPU_MIPS64_R6
1947	bool
1948	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1949
1950config SYS_HAS_CPU_R3000
1951	bool
1952
1953config SYS_HAS_CPU_TX39XX
1954	bool
1955
1956config SYS_HAS_CPU_VR41XX
1957	bool
1958
1959config SYS_HAS_CPU_R4X00
1960	bool
1961
1962config SYS_HAS_CPU_TX49XX
1963	bool
1964
1965config SYS_HAS_CPU_R5000
1966	bool
1967
1968config SYS_HAS_CPU_R5500
1969	bool
1970
1971config SYS_HAS_CPU_NEVADA
1972	bool
1973
1974config SYS_HAS_CPU_R10000
1975	bool
1976	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1977
1978config SYS_HAS_CPU_RM7000
1979	bool
1980
1981config SYS_HAS_CPU_SB1
1982	bool
1983
1984config SYS_HAS_CPU_CAVIUM_OCTEON
1985	bool
1986
1987config SYS_HAS_CPU_BMIPS
1988	bool
1989
1990config SYS_HAS_CPU_BMIPS32_3300
1991	bool
1992	select SYS_HAS_CPU_BMIPS
1993
1994config SYS_HAS_CPU_BMIPS4350
1995	bool
1996	select SYS_HAS_CPU_BMIPS
1997
1998config SYS_HAS_CPU_BMIPS4380
1999	bool
2000	select SYS_HAS_CPU_BMIPS
2001
2002config SYS_HAS_CPU_BMIPS5000
2003	bool
2004	select SYS_HAS_CPU_BMIPS
2005	select ARCH_HAS_SYNC_DMA_FOR_CPU
2006
2007config SYS_HAS_CPU_XLR
2008	bool
2009
2010config SYS_HAS_CPU_XLP
2011	bool
2012
2013#
2014# CPU may reorder R->R, R->W, W->R, W->W
2015# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2016#
2017config WEAK_ORDERING
2018	bool
2019
2020#
2021# CPU may reorder reads and writes beyond LL/SC
2022# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2023#
2024config WEAK_REORDERING_BEYOND_LLSC
2025	bool
2026endmenu
2027
2028#
2029# These two indicate any level of the MIPS32 and MIPS64 architecture
2030#
2031config CPU_MIPS32
2032	bool
2033	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2034
2035config CPU_MIPS64
2036	bool
2037	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2038
2039#
2040# These indicate the revision of the architecture
2041#
2042config CPU_MIPSR1
2043	bool
2044	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2045
2046config CPU_MIPSR2
2047	bool
2048	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2049	select CPU_HAS_RIXI
2050	select MIPS_SPRAM
2051
2052config CPU_MIPSR6
2053	bool
2054	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2055	select CPU_HAS_RIXI
2056	select HAVE_ARCH_BITREVERSE
2057	select MIPS_ASID_BITS_VARIABLE
2058	select MIPS_CRC_SUPPORT
2059	select MIPS_SPRAM
2060
2061config TARGET_ISA_REV
2062	int
2063	default 1 if CPU_MIPSR1
2064	default 2 if CPU_MIPSR2
2065	default 6 if CPU_MIPSR6
2066	default 0
2067	help
2068	  Reflects the ISA revision being targeted by the kernel build. This
2069	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2070
2071config EVA
2072	bool
2073
2074config XPA
2075	bool
2076
2077config SYS_SUPPORTS_32BIT_KERNEL
2078	bool
2079config SYS_SUPPORTS_64BIT_KERNEL
2080	bool
2081config CPU_SUPPORTS_32BIT_KERNEL
2082	bool
2083config CPU_SUPPORTS_64BIT_KERNEL
2084	bool
2085config CPU_SUPPORTS_CPUFREQ
2086	bool
2087config CPU_SUPPORTS_ADDRWINCFG
2088	bool
2089config CPU_SUPPORTS_HUGEPAGES
2090	bool
2091	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2092config CPU_SUPPORTS_UNCACHED_ACCELERATED
2093	bool
2094config MIPS_PGD_C0_CONTEXT
2095	bool
2096	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2097
2098#
2099# Set to y for ptrace access to watch registers.
2100#
2101config HARDWARE_WATCHPOINTS
2102	bool
2103	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2104
2105menu "Kernel type"
2106
2107choice
2108	prompt "Kernel code model"
2109	help
2110	  You should only select this option if you have a workload that
2111	  actually benefits from 64-bit processing or if your machine has
2112	  large memory.  You will only be presented a single option in this
2113	  menu if your system does not support both 32-bit and 64-bit kernels.
2114
2115config 32BIT
2116	bool "32-bit kernel"
2117	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2118	select TRAD_SIGNALS
2119	help
2120	  Select this option if you want to build a 32-bit kernel.
2121
2122config 64BIT
2123	bool "64-bit kernel"
2124	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2125	help
2126	  Select this option if you want to build a 64-bit kernel.
2127
2128endchoice
2129
2130config KVM_GUEST
2131	bool "KVM Guest Kernel"
2132	depends on BROKEN_ON_SMP
2133	help
2134	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2135	  mode.
2136
2137config KVM_GUEST_TIMER_FREQ
2138	int "Count/Compare Timer Frequency (MHz)"
2139	depends on KVM_GUEST
2140	default 100
2141	help
2142	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2143	  emulation when determining guest CPU Frequency. Instead, the guest's
2144	  timer frequency is specified directly.
2145
2146config MIPS_VA_BITS_48
2147	bool "48 bits virtual memory"
2148	depends on 64BIT
2149	help
2150	  Support a maximum at least 48 bits of application virtual
2151	  memory.  Default is 40 bits or less, depending on the CPU.
2152	  For page sizes 16k and above, this option results in a small
2153	  memory overhead for page tables.  For 4k page size, a fourth
2154	  level of page tables is added which imposes both a memory
2155	  overhead as well as slower TLB fault handling.
2156
2157	  If unsure, say N.
2158
2159choice
2160	prompt "Kernel page size"
2161	default PAGE_SIZE_4KB
2162
2163config PAGE_SIZE_4KB
2164	bool "4kB"
2165	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2166	help
2167	  This option select the standard 4kB Linux page size.  On some
2168	  R3000-family processors this is the only available page size.  Using
2169	  4kB page size will minimize memory consumption and is therefore
2170	  recommended for low memory systems.
2171
2172config PAGE_SIZE_8KB
2173	bool "8kB"
2174	depends on CPU_CAVIUM_OCTEON
2175	depends on !MIPS_VA_BITS_48
2176	help
2177	  Using 8kB page size will result in higher performance kernel at
2178	  the price of higher memory consumption.  This option is available
2179	  only on cnMIPS processors.  Note that you will need a suitable Linux
2180	  distribution to support this.
2181
2182config PAGE_SIZE_16KB
2183	bool "16kB"
2184	depends on !CPU_R3000 && !CPU_TX39XX
2185	help
2186	  Using 16kB page size will result in higher performance kernel at
2187	  the price of higher memory consumption.  This option is available on
2188	  all non-R3000 family processors.  Note that you will need a suitable
2189	  Linux distribution to support this.
2190
2191config PAGE_SIZE_32KB
2192	bool "32kB"
2193	depends on CPU_CAVIUM_OCTEON
2194	depends on !MIPS_VA_BITS_48
2195	help
2196	  Using 32kB page size will result in higher performance kernel at
2197	  the price of higher memory consumption.  This option is available
2198	  only on cnMIPS cores.  Note that you will need a suitable Linux
2199	  distribution to support this.
2200
2201config PAGE_SIZE_64KB
2202	bool "64kB"
2203	depends on !CPU_R3000 && !CPU_TX39XX
2204	help
2205	  Using 64kB page size will result in higher performance kernel at
2206	  the price of higher memory consumption.  This option is available on
2207	  all non-R3000 family processor.  Not that at the time of this
2208	  writing this option is still high experimental.
2209
2210endchoice
2211
2212config FORCE_MAX_ZONEORDER
2213	int "Maximum zone order"
2214	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2215	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2216	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2217	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2218	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2219	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2220	range 11 64
2221	default "11"
2222	help
2223	  The kernel memory allocator divides physically contiguous memory
2224	  blocks into "zones", where each zone is a power of two number of
2225	  pages.  This option selects the largest power of two that the kernel
2226	  keeps in the memory allocator.  If you need to allocate very large
2227	  blocks of physically contiguous memory, then you may need to
2228	  increase this value.
2229
2230	  This config option is actually maximum order plus one. For example,
2231	  a value of 11 means that the largest free memory block is 2^10 pages.
2232
2233	  The page size is not necessarily 4KB.  Keep this in mind
2234	  when choosing a value for this option.
2235
2236config BOARD_SCACHE
2237	bool
2238
2239config IP22_CPU_SCACHE
2240	bool
2241	select BOARD_SCACHE
2242
2243#
2244# Support for a MIPS32 / MIPS64 style S-caches
2245#
2246config MIPS_CPU_SCACHE
2247	bool
2248	select BOARD_SCACHE
2249
2250config R5000_CPU_SCACHE
2251	bool
2252	select BOARD_SCACHE
2253
2254config RM7000_CPU_SCACHE
2255	bool
2256	select BOARD_SCACHE
2257
2258config SIBYTE_DMA_PAGEOPS
2259	bool "Use DMA to clear/copy pages"
2260	depends on CPU_SB1
2261	help
2262	  Instead of using the CPU to zero and copy pages, use a Data Mover
2263	  channel.  These DMA channels are otherwise unused by the standard
2264	  SiByte Linux port.  Seems to give a small performance benefit.
2265
2266config CPU_HAS_PREFETCH
2267	bool
2268
2269config CPU_GENERIC_DUMP_TLB
2270	bool
2271	default y if !(CPU_R3000 || CPU_TX39XX)
2272
2273config MIPS_FP_SUPPORT
2274	bool "Floating Point support" if EXPERT
2275	default y
2276	help
2277	  Select y to include support for floating point in the kernel
2278	  including initialization of FPU hardware, FP context save & restore
2279	  and emulation of an FPU where necessary. Without this support any
2280	  userland program attempting to use floating point instructions will
2281	  receive a SIGILL.
2282
2283	  If you know that your userland will not attempt to use floating point
2284	  instructions then you can say n here to shrink the kernel a little.
2285
2286	  If unsure, say y.
2287
2288config CPU_R2300_FPU
2289	bool
2290	depends on MIPS_FP_SUPPORT
2291	default y if CPU_R3000 || CPU_TX39XX
2292
2293config CPU_R3K_TLB
2294	bool
2295
2296config CPU_R4K_FPU
2297	bool
2298	depends on MIPS_FP_SUPPORT
2299	default y if !CPU_R2300_FPU
2300
2301config CPU_R4K_CACHE_TLB
2302	bool
2303	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2304
2305config MIPS_MT_SMP
2306	bool "MIPS MT SMP support (1 TC on each available VPE)"
2307	default y
2308	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2309	select CPU_MIPSR2_IRQ_VI
2310	select CPU_MIPSR2_IRQ_EI
2311	select SYNC_R4K
2312	select MIPS_MT
2313	select SMP
2314	select SMP_UP
2315	select SYS_SUPPORTS_SMP
2316	select SYS_SUPPORTS_SCHED_SMT
2317	select MIPS_PERF_SHARED_TC_COUNTERS
2318	help
2319	  This is a kernel model which is known as SMVP. This is supported
2320	  on cores with the MT ASE and uses the available VPEs to implement
2321	  virtual processors which supports SMP. This is equivalent to the
2322	  Intel Hyperthreading feature. For further information go to
2323	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2324
2325config MIPS_MT
2326	bool
2327
2328config SCHED_SMT
2329	bool "SMT (multithreading) scheduler support"
2330	depends on SYS_SUPPORTS_SCHED_SMT
2331	default n
2332	help
2333	  SMT scheduler support improves the CPU scheduler's decision making
2334	  when dealing with MIPS MT enabled cores at a cost of slightly
2335	  increased overhead in some places. If unsure say N here.
2336
2337config SYS_SUPPORTS_SCHED_SMT
2338	bool
2339
2340config SYS_SUPPORTS_MULTITHREADING
2341	bool
2342
2343config MIPS_MT_FPAFF
2344	bool "Dynamic FPU affinity for FP-intensive threads"
2345	default y
2346	depends on MIPS_MT_SMP
2347
2348config MIPSR2_TO_R6_EMULATOR
2349	bool "MIPS R2-to-R6 emulator"
2350	depends on CPU_MIPSR6
2351	depends on MIPS_FP_SUPPORT
2352	default y
2353	help
2354	  Choose this option if you want to run non-R6 MIPS userland code.
2355	  Even if you say 'Y' here, the emulator will still be disabled by
2356	  default. You can enable it using the 'mipsr2emu' kernel option.
2357	  The only reason this is a build-time option is to save ~14K from the
2358	  final kernel image.
2359
2360config SYS_SUPPORTS_VPE_LOADER
2361	bool
2362	depends on SYS_SUPPORTS_MULTITHREADING
2363	help
2364	  Indicates that the platform supports the VPE loader, and provides
2365	  physical_memsize.
2366
2367config MIPS_VPE_LOADER
2368	bool "VPE loader support."
2369	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2370	select CPU_MIPSR2_IRQ_VI
2371	select CPU_MIPSR2_IRQ_EI
2372	select MIPS_MT
2373	help
2374	  Includes a loader for loading an elf relocatable object
2375	  onto another VPE and running it.
2376
2377config MIPS_VPE_LOADER_CMP
2378	bool
2379	default "y"
2380	depends on MIPS_VPE_LOADER && MIPS_CMP
2381
2382config MIPS_VPE_LOADER_MT
2383	bool
2384	default "y"
2385	depends on MIPS_VPE_LOADER && !MIPS_CMP
2386
2387config MIPS_VPE_LOADER_TOM
2388	bool "Load VPE program into memory hidden from linux"
2389	depends on MIPS_VPE_LOADER
2390	default y
2391	help
2392	  The loader can use memory that is present but has been hidden from
2393	  Linux using the kernel command line option "mem=xxMB". It's up to
2394	  you to ensure the amount you put in the option and the space your
2395	  program requires is less or equal to the amount physically present.
2396
2397config MIPS_VPE_APSP_API
2398	bool "Enable support for AP/SP API (RTLX)"
2399	depends on MIPS_VPE_LOADER
2400
2401config MIPS_VPE_APSP_API_CMP
2402	bool
2403	default "y"
2404	depends on MIPS_VPE_APSP_API && MIPS_CMP
2405
2406config MIPS_VPE_APSP_API_MT
2407	bool
2408	default "y"
2409	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2410
2411config MIPS_CMP
2412	bool "MIPS CMP framework support (DEPRECATED)"
2413	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2414	select SMP
2415	select SYNC_R4K
2416	select SYS_SUPPORTS_SMP
2417	select WEAK_ORDERING
2418	default n
2419	help
2420	  Select this if you are using a bootloader which implements the "CMP
2421	  framework" protocol (ie. YAMON) and want your kernel to make use of
2422	  its ability to start secondary CPUs.
2423
2424	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2425	  instead of this.
2426
2427config MIPS_CPS
2428	bool "MIPS Coherent Processing System support"
2429	depends on SYS_SUPPORTS_MIPS_CPS
2430	select MIPS_CM
2431	select MIPS_CPS_PM if HOTPLUG_CPU
2432	select SMP
2433	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2434	select SYS_SUPPORTS_HOTPLUG_CPU
2435	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2436	select SYS_SUPPORTS_SMP
2437	select WEAK_ORDERING
2438	help
2439	  Select this if you wish to run an SMP kernel across multiple cores
2440	  within a MIPS Coherent Processing System. When this option is
2441	  enabled the kernel will probe for other cores and boot them with
2442	  no external assistance. It is safe to enable this when hardware
2443	  support is unavailable.
2444
2445config MIPS_CPS_PM
2446	depends on MIPS_CPS
2447	bool
2448
2449config MIPS_CM
2450	bool
2451	select MIPS_CPC
2452
2453config MIPS_CPC
2454	bool
2455
2456config SB1_PASS_2_WORKAROUNDS
2457	bool
2458	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2459	default y
2460
2461config SB1_PASS_2_1_WORKAROUNDS
2462	bool
2463	depends on CPU_SB1 && CPU_SB1_PASS_2
2464	default y
2465
2466choice
2467	prompt "SmartMIPS or microMIPS ASE support"
2468
2469config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2470	bool "None"
2471	help
2472	  Select this if you want neither microMIPS nor SmartMIPS support
2473
2474config CPU_HAS_SMARTMIPS
2475	depends on SYS_SUPPORTS_SMARTMIPS
2476	bool "SmartMIPS"
2477	help
2478	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2479	  increased security at both hardware and software level for
2480	  smartcards.  Enabling this option will allow proper use of the
2481	  SmartMIPS instructions by Linux applications.  However a kernel with
2482	  this option will not work on a MIPS core without SmartMIPS core.  If
2483	  you don't know you probably don't have SmartMIPS and should say N
2484	  here.
2485
2486config CPU_MICROMIPS
2487	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2488	bool "microMIPS"
2489	help
2490	  When this option is enabled the kernel will be built using the
2491	  microMIPS ISA
2492
2493endchoice
2494
2495config CPU_HAS_MSA
2496	bool "Support for the MIPS SIMD Architecture"
2497	depends on CPU_SUPPORTS_MSA
2498	depends on MIPS_FP_SUPPORT
2499	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2500	help
2501	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2502	  and a set of SIMD instructions to operate on them. When this option
2503	  is enabled the kernel will support allocating & switching MSA
2504	  vector register contexts. If you know that your kernel will only be
2505	  running on CPUs which do not support MSA or that your userland will
2506	  not be making use of it then you may wish to say N here to reduce
2507	  the size & complexity of your kernel.
2508
2509	  If unsure, say Y.
2510
2511config CPU_HAS_WB
2512	bool
2513
2514config XKS01
2515	bool
2516
2517config CPU_HAS_RIXI
2518	bool
2519
2520config CPU_HAS_LOAD_STORE_LR
2521	bool
2522	help
2523	  CPU has support for unaligned load and store instructions:
2524	  LWL, LWR, SWL, SWR (Load/store word left/right).
2525	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2526
2527#
2528# Vectored interrupt mode is an R2 feature
2529#
2530config CPU_MIPSR2_IRQ_VI
2531	bool
2532
2533#
2534# Extended interrupt mode is an R2 feature
2535#
2536config CPU_MIPSR2_IRQ_EI
2537	bool
2538
2539config CPU_HAS_SYNC
2540	bool
2541	depends on !CPU_R3000
2542	default y
2543
2544#
2545# CPU non-features
2546#
2547config CPU_DADDI_WORKAROUNDS
2548	bool
2549
2550config CPU_R4000_WORKAROUNDS
2551	bool
2552	select CPU_R4400_WORKAROUNDS
2553
2554config CPU_R4400_WORKAROUNDS
2555	bool
2556
2557config MIPS_ASID_SHIFT
2558	int
2559	default 6 if CPU_R3000 || CPU_TX39XX
2560	default 0
2561
2562config MIPS_ASID_BITS
2563	int
2564	default 0 if MIPS_ASID_BITS_VARIABLE
2565	default 6 if CPU_R3000 || CPU_TX39XX
2566	default 8
2567
2568config MIPS_ASID_BITS_VARIABLE
2569	bool
2570
2571config MIPS_CRC_SUPPORT
2572	bool
2573
2574#
2575# - Highmem only makes sense for the 32-bit kernel.
2576# - The current highmem code will only work properly on physically indexed
2577#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2578#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2579#   moment we protect the user and offer the highmem option only on machines
2580#   where it's known to be safe.  This will not offer highmem on a few systems
2581#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2582#   indexed CPUs but we're playing safe.
2583# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2584#   know they might have memory configurations that could make use of highmem
2585#   support.
2586#
2587config HIGHMEM
2588	bool "High Memory Support"
2589	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2590
2591config CPU_SUPPORTS_HIGHMEM
2592	bool
2593
2594config SYS_SUPPORTS_HIGHMEM
2595	bool
2596
2597config SYS_SUPPORTS_SMARTMIPS
2598	bool
2599
2600config SYS_SUPPORTS_MICROMIPS
2601	bool
2602
2603config SYS_SUPPORTS_MIPS16
2604	bool
2605	help
2606	  This option must be set if a kernel might be executed on a MIPS16-
2607	  enabled CPU even if MIPS16 is not actually being used.  In other
2608	  words, it makes the kernel MIPS16-tolerant.
2609
2610config CPU_SUPPORTS_MSA
2611	bool
2612
2613config ARCH_FLATMEM_ENABLE
2614	def_bool y
2615	depends on !NUMA && !CPU_LOONGSON2
2616
2617config ARCH_DISCONTIGMEM_ENABLE
2618	bool
2619	default y if SGI_IP27
2620	help
2621	  Say Y to support efficient handling of discontiguous physical memory,
2622	  for architectures which are either NUMA (Non-Uniform Memory Access)
2623	  or have huge holes in the physical address space for other reasons.
2624	  See <file:Documentation/vm/numa.rst> for more.
2625
2626config ARCH_SPARSEMEM_ENABLE
2627	bool
2628	select SPARSEMEM_STATIC
2629
2630config NUMA
2631	bool "NUMA Support"
2632	depends on SYS_SUPPORTS_NUMA
2633	help
2634	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2635	  Access).  This option improves performance on systems with more
2636	  than two nodes; on two node systems it is generally better to
2637	  leave it disabled; on single node systems disable this option
2638	  disabled.
2639
2640config SYS_SUPPORTS_NUMA
2641	bool
2642
2643config RELOCATABLE
2644	bool "Relocatable kernel"
2645	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2646	help
2647	  This builds a kernel image that retains relocation information
2648	  so it can be loaded someplace besides the default 1MB.
2649	  The relocations make the kernel binary about 15% larger,
2650	  but are discarded at runtime
2651
2652config RELOCATION_TABLE_SIZE
2653	hex "Relocation table size"
2654	depends on RELOCATABLE
2655	range 0x0 0x01000000
2656	default "0x00100000"
2657	---help---
2658	  A table of relocation data will be appended to the kernel binary
2659	  and parsed at boot to fix up the relocated kernel.
2660
2661	  This option allows the amount of space reserved for the table to be
2662	  adjusted, although the default of 1Mb should be ok in most cases.
2663
2664	  The build will fail and a valid size suggested if this is too small.
2665
2666	  If unsure, leave at the default value.
2667
2668config RANDOMIZE_BASE
2669	bool "Randomize the address of the kernel image"
2670	depends on RELOCATABLE
2671	---help---
2672	  Randomizes the physical and virtual address at which the
2673	  kernel image is loaded, as a security feature that
2674	  deters exploit attempts relying on knowledge of the location
2675	  of kernel internals.
2676
2677	  Entropy is generated using any coprocessor 0 registers available.
2678
2679	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2680
2681	  If unsure, say N.
2682
2683config RANDOMIZE_BASE_MAX_OFFSET
2684	hex "Maximum kASLR offset" if EXPERT
2685	depends on RANDOMIZE_BASE
2686	range 0x0 0x40000000 if EVA || 64BIT
2687	range 0x0 0x08000000
2688	default "0x01000000"
2689	---help---
2690	  When kASLR is active, this provides the maximum offset that will
2691	  be applied to the kernel image. It should be set according to the
2692	  amount of physical RAM available in the target system minus
2693	  PHYSICAL_START and must be a power of 2.
2694
2695	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2696	  EVA or 64-bit. The default is 16Mb.
2697
2698config NODES_SHIFT
2699	int
2700	default "6"
2701	depends on NEED_MULTIPLE_NODES
2702
2703config HW_PERF_EVENTS
2704	bool "Enable hardware performance counter support for perf events"
2705	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2706	default y
2707	help
2708	  Enable hardware performance counter support for perf events. If
2709	  disabled, perf events will use software events only.
2710
2711config SMP
2712	bool "Multi-Processing support"
2713	depends on SYS_SUPPORTS_SMP
2714	help
2715	  This enables support for systems with more than one CPU. If you have
2716	  a system with only one CPU, say N. If you have a system with more
2717	  than one CPU, say Y.
2718
2719	  If you say N here, the kernel will run on uni- and multiprocessor
2720	  machines, but will use only one CPU of a multiprocessor machine. If
2721	  you say Y here, the kernel will run on many, but not all,
2722	  uniprocessor machines. On a uniprocessor machine, the kernel
2723	  will run faster if you say N here.
2724
2725	  People using multiprocessor machines who say Y here should also say
2726	  Y to "Enhanced Real Time Clock Support", below.
2727
2728	  See also the SMP-HOWTO available at
2729	  <http://www.tldp.org/docs.html#howto>.
2730
2731	  If you don't know what to do here, say N.
2732
2733config HOTPLUG_CPU
2734	bool "Support for hot-pluggable CPUs"
2735	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2736	help
2737	  Say Y here to allow turning CPUs off and on. CPUs can be
2738	  controlled through /sys/devices/system/cpu.
2739	  (Note: power management support will enable this option
2740	    automatically on SMP systems. )
2741	  Say N if you want to disable CPU hotplug.
2742
2743config SMP_UP
2744	bool
2745
2746config SYS_SUPPORTS_MIPS_CMP
2747	bool
2748
2749config SYS_SUPPORTS_MIPS_CPS
2750	bool
2751
2752config SYS_SUPPORTS_SMP
2753	bool
2754
2755config NR_CPUS_DEFAULT_4
2756	bool
2757
2758config NR_CPUS_DEFAULT_8
2759	bool
2760
2761config NR_CPUS_DEFAULT_16
2762	bool
2763
2764config NR_CPUS_DEFAULT_32
2765	bool
2766
2767config NR_CPUS_DEFAULT_64
2768	bool
2769
2770config NR_CPUS
2771	int "Maximum number of CPUs (2-256)"
2772	range 2 256
2773	depends on SMP
2774	default "4" if NR_CPUS_DEFAULT_4
2775	default "8" if NR_CPUS_DEFAULT_8
2776	default "16" if NR_CPUS_DEFAULT_16
2777	default "32" if NR_CPUS_DEFAULT_32
2778	default "64" if NR_CPUS_DEFAULT_64
2779	help
2780	  This allows you to specify the maximum number of CPUs which this
2781	  kernel will support.  The maximum supported value is 32 for 32-bit
2782	  kernel and 64 for 64-bit kernels; the minimum value which makes
2783	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2784	  and 2 for all others.
2785
2786	  This is purely to save memory - each supported CPU adds
2787	  approximately eight kilobytes to the kernel image.  For best
2788	  performance should round up your number of processors to the next
2789	  power of two.
2790
2791config MIPS_PERF_SHARED_TC_COUNTERS
2792	bool
2793
2794config MIPS_NR_CPU_NR_MAP_1024
2795	bool
2796
2797config MIPS_NR_CPU_NR_MAP
2798	int
2799	depends on SMP
2800	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2801	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2802
2803#
2804# Timer Interrupt Frequency Configuration
2805#
2806
2807choice
2808	prompt "Timer frequency"
2809	default HZ_250
2810	help
2811	  Allows the configuration of the timer frequency.
2812
2813	config HZ_24
2814		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2815
2816	config HZ_48
2817		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2818
2819	config HZ_100
2820		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2821
2822	config HZ_128
2823		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2824
2825	config HZ_250
2826		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2827
2828	config HZ_256
2829		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2830
2831	config HZ_1000
2832		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2833
2834	config HZ_1024
2835		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2836
2837endchoice
2838
2839config SYS_SUPPORTS_24HZ
2840	bool
2841
2842config SYS_SUPPORTS_48HZ
2843	bool
2844
2845config SYS_SUPPORTS_100HZ
2846	bool
2847
2848config SYS_SUPPORTS_128HZ
2849	bool
2850
2851config SYS_SUPPORTS_250HZ
2852	bool
2853
2854config SYS_SUPPORTS_256HZ
2855	bool
2856
2857config SYS_SUPPORTS_1000HZ
2858	bool
2859
2860config SYS_SUPPORTS_1024HZ
2861	bool
2862
2863config SYS_SUPPORTS_ARBIT_HZ
2864	bool
2865	default y if !SYS_SUPPORTS_24HZ && \
2866		     !SYS_SUPPORTS_48HZ && \
2867		     !SYS_SUPPORTS_100HZ && \
2868		     !SYS_SUPPORTS_128HZ && \
2869		     !SYS_SUPPORTS_250HZ && \
2870		     !SYS_SUPPORTS_256HZ && \
2871		     !SYS_SUPPORTS_1000HZ && \
2872		     !SYS_SUPPORTS_1024HZ
2873
2874config HZ
2875	int
2876	default 24 if HZ_24
2877	default 48 if HZ_48
2878	default 100 if HZ_100
2879	default 128 if HZ_128
2880	default 250 if HZ_250
2881	default 256 if HZ_256
2882	default 1000 if HZ_1000
2883	default 1024 if HZ_1024
2884
2885config SCHED_HRTICK
2886	def_bool HIGH_RES_TIMERS
2887
2888config KEXEC
2889	bool "Kexec system call"
2890	select KEXEC_CORE
2891	help
2892	  kexec is a system call that implements the ability to shutdown your
2893	  current kernel, and to start another kernel.  It is like a reboot
2894	  but it is independent of the system firmware.   And like a reboot
2895	  you can start any kernel with it, not just Linux.
2896
2897	  The name comes from the similarity to the exec system call.
2898
2899	  It is an ongoing process to be certain the hardware in a machine
2900	  is properly shutdown, so do not be surprised if this code does not
2901	  initially work for you.  As of this writing the exact hardware
2902	  interface is strongly in flux, so no good recommendation can be
2903	  made.
2904
2905config CRASH_DUMP
2906	bool "Kernel crash dumps"
2907	help
2908	  Generate crash dump after being started by kexec.
2909	  This should be normally only set in special crash dump kernels
2910	  which are loaded in the main kernel with kexec-tools into
2911	  a specially reserved region and then later executed after
2912	  a crash by kdump/kexec. The crash dump kernel must be compiled
2913	  to a memory address not used by the main kernel or firmware using
2914	  PHYSICAL_START.
2915
2916config PHYSICAL_START
2917	hex "Physical address where the kernel is loaded"
2918	default "0xffffffff84000000"
2919	depends on CRASH_DUMP
2920	help
2921	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2922	  If you plan to use kernel for capturing the crash dump change
2923	  this value to start of the reserved region (the "X" value as
2924	  specified in the "crashkernel=YM@XM" command line boot parameter
2925	  passed to the panic-ed kernel).
2926
2927config SECCOMP
2928	bool "Enable seccomp to safely compute untrusted bytecode"
2929	depends on PROC_FS
2930	default y
2931	help
2932	  This kernel feature is useful for number crunching applications
2933	  that may need to compute untrusted bytecode during their
2934	  execution. By using pipes or other transports made available to
2935	  the process as file descriptors supporting the read/write
2936	  syscalls, it's possible to isolate those applications in
2937	  their own address space using seccomp. Once seccomp is
2938	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2939	  and the task is only allowed to execute a few safe syscalls
2940	  defined by each seccomp mode.
2941
2942	  If unsure, say Y. Only embedded should say N here.
2943
2944config MIPS_O32_FP64_SUPPORT
2945	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2946	depends on 32BIT || MIPS32_O32
2947	help
2948	  When this is enabled, the kernel will support use of 64-bit floating
2949	  point registers with binaries using the O32 ABI along with the
2950	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2951	  32-bit MIPS systems this support is at the cost of increasing the
2952	  size and complexity of the compiled FPU emulator. Thus if you are
2953	  running a MIPS32 system and know that none of your userland binaries
2954	  will require 64-bit floating point, you may wish to reduce the size
2955	  of your kernel & potentially improve FP emulation performance by
2956	  saying N here.
2957
2958	  Although binutils currently supports use of this flag the details
2959	  concerning its effect upon the O32 ABI in userland are still being
2960	  worked on. In order to avoid userland becoming dependant upon current
2961	  behaviour before the details have been finalised, this option should
2962	  be considered experimental and only enabled by those working upon
2963	  said details.
2964
2965	  If unsure, say N.
2966
2967config USE_OF
2968	bool
2969	select OF
2970	select OF_EARLY_FLATTREE
2971	select IRQ_DOMAIN
2972
2973config UHI_BOOT
2974	bool
2975
2976config BUILTIN_DTB
2977	bool
2978
2979choice
2980	prompt "Kernel appended dtb support" if USE_OF
2981	default MIPS_NO_APPENDED_DTB
2982
2983	config MIPS_NO_APPENDED_DTB
2984		bool "None"
2985		help
2986		  Do not enable appended dtb support.
2987
2988	config MIPS_ELF_APPENDED_DTB
2989		bool "vmlinux"
2990		help
2991		  With this option, the boot code will look for a device tree binary
2992		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2993		  it is empty and the DTB can be appended using binutils command
2994		  objcopy:
2995
2996		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2997
2998		  This is meant as a backward compatiblity convenience for those
2999		  systems with a bootloader that can't be upgraded to accommodate
3000		  the documented boot protocol using a device tree.
3001
3002	config MIPS_RAW_APPENDED_DTB
3003		bool "vmlinux.bin or vmlinuz.bin"
3004		help
3005		  With this option, the boot code will look for a device tree binary
3006		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3007		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3008
3009		  This is meant as a backward compatibility convenience for those
3010		  systems with a bootloader that can't be upgraded to accommodate
3011		  the documented boot protocol using a device tree.
3012
3013		  Beware that there is very little in terms of protection against
3014		  this option being confused by leftover garbage in memory that might
3015		  look like a DTB header after a reboot if no actual DTB is appended
3016		  to vmlinux.bin.  Do not leave this option active in a production kernel
3017		  if you don't intend to always append a DTB.
3018endchoice
3019
3020choice
3021	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3022	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3023					 !MIPS_MALTA && \
3024					 !CAVIUM_OCTEON_SOC
3025	default MIPS_CMDLINE_FROM_BOOTLOADER
3026
3027	config MIPS_CMDLINE_FROM_DTB
3028		depends on USE_OF
3029		bool "Dtb kernel arguments if available"
3030
3031	config MIPS_CMDLINE_DTB_EXTEND
3032		depends on USE_OF
3033		bool "Extend dtb kernel arguments with bootloader arguments"
3034
3035	config MIPS_CMDLINE_FROM_BOOTLOADER
3036		bool "Bootloader kernel arguments if available"
3037
3038	config MIPS_CMDLINE_BUILTIN_EXTEND
3039		depends on CMDLINE_BOOL
3040		bool "Extend builtin kernel arguments with bootloader arguments"
3041endchoice
3042
3043endmenu
3044
3045config LOCKDEP_SUPPORT
3046	bool
3047	default y
3048
3049config STACKTRACE_SUPPORT
3050	bool
3051	default y
3052
3053config PGTABLE_LEVELS
3054	int
3055	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3056	default 3 if 64BIT && !PAGE_SIZE_64KB
3057	default 2
3058
3059config MIPS_AUTO_PFN_OFFSET
3060	bool
3061
3062menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3063
3064config PCI_DRIVERS_GENERIC
3065	select PCI_DOMAINS_GENERIC if PCI
3066	bool
3067
3068config PCI_DRIVERS_LEGACY
3069	def_bool !PCI_DRIVERS_GENERIC
3070	select NO_GENERIC_PCI_IOPORT_MAP
3071	select PCI_DOMAINS if PCI
3072
3073#
3074# ISA support is now enabled via select.  Too many systems still have the one
3075# or other ISA chip on the board that users don't know about so don't expect
3076# users to choose the right thing ...
3077#
3078config ISA
3079	bool
3080
3081config TC
3082	bool "TURBOchannel support"
3083	depends on MACH_DECSTATION
3084	help
3085	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3086	  processors.  TURBOchannel programming specifications are available
3087	  at:
3088	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3089	  and:
3090	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3091	  Linux driver support status is documented at:
3092	  <http://www.linux-mips.org/wiki/DECstation>
3093
3094config MMU
3095	bool
3096	default y
3097
3098config ARCH_MMAP_RND_BITS_MIN
3099	default 12 if 64BIT
3100	default 8
3101
3102config ARCH_MMAP_RND_BITS_MAX
3103	default 18 if 64BIT
3104	default 15
3105
3106config ARCH_MMAP_RND_COMPAT_BITS_MIN
3107	default 8
3108
3109config ARCH_MMAP_RND_COMPAT_BITS_MAX
3110	default 15
3111
3112config I8253
3113	bool
3114	select CLKSRC_I8253
3115	select CLKEVT_I8253
3116	select MIPS_EXTERNAL_TIMER
3117
3118config ZONE_DMA
3119	bool
3120
3121config ZONE_DMA32
3122	bool
3123
3124endmenu
3125
3126config TRAD_SIGNALS
3127	bool
3128
3129config MIPS32_COMPAT
3130	bool
3131
3132config COMPAT
3133	bool
3134
3135config SYSVIPC_COMPAT
3136	bool
3137
3138config MIPS32_O32
3139	bool "Kernel support for o32 binaries"
3140	depends on 64BIT
3141	select ARCH_WANT_OLD_COMPAT_IPC
3142	select COMPAT
3143	select MIPS32_COMPAT
3144	select SYSVIPC_COMPAT if SYSVIPC
3145	help
3146	  Select this option if you want to run o32 binaries.  These are pure
3147	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3148	  existing binaries are in this format.
3149
3150	  If unsure, say Y.
3151
3152config MIPS32_N32
3153	bool "Kernel support for n32 binaries"
3154	depends on 64BIT
3155	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3156	select COMPAT
3157	select MIPS32_COMPAT
3158	select SYSVIPC_COMPAT if SYSVIPC
3159	help
3160	  Select this option if you want to run n32 binaries.  These are
3161	  64-bit binaries using 32-bit quantities for addressing and certain
3162	  data that would normally be 64-bit.  They are used in special
3163	  cases.
3164
3165	  If unsure, say N.
3166
3167config BINFMT_ELF32
3168	bool
3169	default y if MIPS32_O32 || MIPS32_N32
3170	select ELFCORE
3171
3172menu "Power management options"
3173
3174config ARCH_HIBERNATION_POSSIBLE
3175	def_bool y
3176	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3177
3178config ARCH_SUSPEND_POSSIBLE
3179	def_bool y
3180	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3181
3182source "kernel/power/Kconfig"
3183
3184endmenu
3185
3186config MIPS_EXTERNAL_TIMER
3187	bool
3188
3189menu "CPU Power Management"
3190
3191if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3192source "drivers/cpufreq/Kconfig"
3193endif
3194
3195source "drivers/cpuidle/Kconfig"
3196
3197endmenu
3198
3199source "drivers/firmware/Kconfig"
3200
3201source "arch/mips/kvm/Kconfig"
3202