xref: /linux/arch/mips/Kconfig (revision 8a79db5e83a5d52c74e6f3c40d6f312cf899213e)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_32BIT_OFF_T if !64BIT
6	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7	select ARCH_CLOCKSOURCE_DATA
8	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
9	select ARCH_HAS_UBSAN_SANITIZE_ALL
10	select ARCH_HAS_FORTIFY_SOURCE
11	select ARCH_SUPPORTS_UPROBES
12	select ARCH_USE_BUILTIN_BSWAP
13	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
14	select ARCH_USE_QUEUED_RWLOCKS
15	select ARCH_USE_QUEUED_SPINLOCKS
16	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
17	select ARCH_WANT_IPC_PARSE_VERSION
18	select BUILDTIME_EXTABLE_SORT
19	select CLONE_BACKWARDS
20	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
21	select CPU_PM if CPU_IDLE
22	select GENERIC_ATOMIC64 if !64BIT
23	select GENERIC_CLOCKEVENTS
24	select GENERIC_CMOS_UPDATE
25	select GENERIC_CPU_AUTOPROBE
26	select GENERIC_GETTIMEOFDAY
27	select GENERIC_IOMAP
28	select GENERIC_IRQ_PROBE
29	select GENERIC_IRQ_SHOW
30	select GENERIC_ISA_DMA if EISA
31	select GENERIC_LIB_ASHLDI3
32	select GENERIC_LIB_ASHRDI3
33	select GENERIC_LIB_CMPDI2
34	select GENERIC_LIB_LSHRDI3
35	select GENERIC_LIB_UCMPDI2
36	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
37	select GENERIC_SMP_IDLE_THREAD
38	select GENERIC_TIME_VSYSCALL
39	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
40	select HANDLE_DOMAIN_IRQ
41	select HAVE_ARCH_COMPILER_H
42	select HAVE_ARCH_JUMP_LABEL
43	select HAVE_ARCH_KGDB
44	select HAVE_ARCH_MMAP_RND_BITS if MMU
45	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
46	select HAVE_ARCH_SECCOMP_FILTER
47	select HAVE_ARCH_TRACEHOOK
48	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
49	select HAVE_ASM_MODVERSIONS
50	select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
51	select HAVE_CONTEXT_TRACKING
52	select HAVE_COPY_THREAD_TLS
53	select HAVE_C_RECORDMCOUNT
54	select HAVE_DEBUG_KMEMLEAK
55	select HAVE_DEBUG_STACKOVERFLOW
56	select HAVE_DMA_CONTIGUOUS
57	select HAVE_DYNAMIC_FTRACE
58	select HAVE_EXIT_THREAD
59	select HAVE_FAST_GUP
60	select HAVE_FTRACE_MCOUNT_RECORD
61	select HAVE_FUNCTION_GRAPH_TRACER
62	select HAVE_FUNCTION_TRACER
63	select HAVE_IDE
64	select HAVE_IOREMAP_PROT
65	select HAVE_IRQ_EXIT_ON_IRQ_STACK
66	select HAVE_IRQ_TIME_ACCOUNTING
67	select HAVE_KPROBES
68	select HAVE_KRETPROBES
69	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
70	select HAVE_MEMBLOCK_NODE_MAP
71	select HAVE_MOD_ARCH_SPECIFIC
72	select HAVE_NMI
73	select HAVE_OPROFILE
74	select HAVE_PERF_EVENTS
75	select HAVE_REGS_AND_STACK_ACCESS_API
76	select HAVE_RSEQ
77	select HAVE_SPARSE_SYSCALL_NR
78	select HAVE_STACKPROTECTOR
79	select HAVE_SYSCALL_TRACEPOINTS
80	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
81	select HAVE_GENERIC_VDSO
82	select IRQ_FORCED_THREADING
83	select ISA if EISA
84	select MODULES_USE_ELF_RELA if MODULES && 64BIT
85	select MODULES_USE_ELF_REL if MODULES
86	select PERF_USE_VMALLOC
87	select RTC_LIB
88	select SYSCTL_EXCEPTION_TRACE
89	select VIRT_TO_BUS
90	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
91	select ARCH_HAS_KCOV
92	select HAVE_GCC_PLUGINS
93
94menu "Machine selection"
95
96choice
97	prompt "System type"
98	default MIPS_GENERIC
99
100config MIPS_GENERIC
101	bool "Generic board-agnostic MIPS kernel"
102	select BOOT_RAW
103	select BUILTIN_DTB
104	select CEVT_R4K
105	select CLKSRC_MIPS_GIC
106	select COMMON_CLK
107	select CPU_MIPSR2_IRQ_VI
108	select CPU_MIPSR2_IRQ_EI
109	select CSRC_R4K
110	select DMA_PERDEV_COHERENT
111	select HAVE_PCI
112	select IRQ_MIPS_CPU
113	select LIBFDT
114	select MIPS_AUTO_PFN_OFFSET
115	select MIPS_CPU_SCACHE
116	select MIPS_GIC
117	select MIPS_L1_CACHE_SHIFT_7
118	select NO_EXCEPT_FILL
119	select PCI_DRIVERS_GENERIC
120	select PINCTRL
121	select SMP_UP if SMP
122	select SWAP_IO_SPACE
123	select SYS_HAS_CPU_MIPS32_R1
124	select SYS_HAS_CPU_MIPS32_R2
125	select SYS_HAS_CPU_MIPS32_R6
126	select SYS_HAS_CPU_MIPS64_R1
127	select SYS_HAS_CPU_MIPS64_R2
128	select SYS_HAS_CPU_MIPS64_R6
129	select SYS_SUPPORTS_32BIT_KERNEL
130	select SYS_SUPPORTS_64BIT_KERNEL
131	select SYS_SUPPORTS_BIG_ENDIAN
132	select SYS_SUPPORTS_HIGHMEM
133	select SYS_SUPPORTS_LITTLE_ENDIAN
134	select SYS_SUPPORTS_MICROMIPS
135	select SYS_SUPPORTS_MIPS_CPS
136	select SYS_SUPPORTS_MIPS16
137	select SYS_SUPPORTS_MULTITHREADING
138	select SYS_SUPPORTS_RELOCATABLE
139	select SYS_SUPPORTS_SMARTMIPS
140	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
141	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
142	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
143	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
144	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
145	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
146	select USE_OF
147	select UHI_BOOT
148	help
149	  Select this to build a kernel which aims to support multiple boards,
150	  generally using a flattened device tree passed from the bootloader
151	  using the boot protocol defined in the UHI (Unified Hosting
152	  Interface) specification.
153
154config MIPS_ALCHEMY
155	bool "Alchemy processor based machines"
156	select PHYS_ADDR_T_64BIT
157	select CEVT_R4K
158	select CSRC_R4K
159	select IRQ_MIPS_CPU
160	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
161	select SYS_HAS_CPU_MIPS32_R1
162	select SYS_SUPPORTS_32BIT_KERNEL
163	select SYS_SUPPORTS_APM_EMULATION
164	select GPIOLIB
165	select SYS_SUPPORTS_ZBOOT
166	select COMMON_CLK
167
168config AR7
169	bool "Texas Instruments AR7"
170	select BOOT_ELF32
171	select DMA_NONCOHERENT
172	select CEVT_R4K
173	select CSRC_R4K
174	select IRQ_MIPS_CPU
175	select NO_EXCEPT_FILL
176	select SWAP_IO_SPACE
177	select SYS_HAS_CPU_MIPS32_R1
178	select SYS_HAS_EARLY_PRINTK
179	select SYS_SUPPORTS_32BIT_KERNEL
180	select SYS_SUPPORTS_LITTLE_ENDIAN
181	select SYS_SUPPORTS_MIPS16
182	select SYS_SUPPORTS_ZBOOT_UART16550
183	select GPIOLIB
184	select VLYNQ
185	select HAVE_CLK
186	help
187	  Support for the Texas Instruments AR7 System-on-a-Chip
188	  family: TNETD7100, 7200 and 7300.
189
190config ATH25
191	bool "Atheros AR231x/AR531x SoC support"
192	select CEVT_R4K
193	select CSRC_R4K
194	select DMA_NONCOHERENT
195	select IRQ_MIPS_CPU
196	select IRQ_DOMAIN
197	select SYS_HAS_CPU_MIPS32_R1
198	select SYS_SUPPORTS_BIG_ENDIAN
199	select SYS_SUPPORTS_32BIT_KERNEL
200	select SYS_HAS_EARLY_PRINTK
201	help
202	  Support for Atheros AR231x and Atheros AR531x based boards
203
204config ATH79
205	bool "Atheros AR71XX/AR724X/AR913X based boards"
206	select ARCH_HAS_RESET_CONTROLLER
207	select BOOT_RAW
208	select CEVT_R4K
209	select CSRC_R4K
210	select DMA_NONCOHERENT
211	select GPIOLIB
212	select PINCTRL
213	select HAVE_CLK
214	select COMMON_CLK
215	select CLKDEV_LOOKUP
216	select IRQ_MIPS_CPU
217	select SYS_HAS_CPU_MIPS32_R2
218	select SYS_HAS_EARLY_PRINTK
219	select SYS_SUPPORTS_32BIT_KERNEL
220	select SYS_SUPPORTS_BIG_ENDIAN
221	select SYS_SUPPORTS_MIPS16
222	select SYS_SUPPORTS_ZBOOT_UART_PROM
223	select USE_OF
224	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
225	help
226	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
227
228config BMIPS_GENERIC
229	bool "Broadcom Generic BMIPS kernel"
230	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
231	select ARCH_HAS_PHYS_TO_DMA
232	select BOOT_RAW
233	select NO_EXCEPT_FILL
234	select USE_OF
235	select CEVT_R4K
236	select CSRC_R4K
237	select SYNC_R4K
238	select COMMON_CLK
239	select BCM6345_L1_IRQ
240	select BCM7038_L1_IRQ
241	select BCM7120_L2_IRQ
242	select BRCMSTB_L2_IRQ
243	select IRQ_MIPS_CPU
244	select DMA_NONCOHERENT
245	select SYS_SUPPORTS_32BIT_KERNEL
246	select SYS_SUPPORTS_LITTLE_ENDIAN
247	select SYS_SUPPORTS_BIG_ENDIAN
248	select SYS_SUPPORTS_HIGHMEM
249	select SYS_HAS_CPU_BMIPS32_3300
250	select SYS_HAS_CPU_BMIPS4350
251	select SYS_HAS_CPU_BMIPS4380
252	select SYS_HAS_CPU_BMIPS5000
253	select SWAP_IO_SPACE
254	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
255	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
256	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
257	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
258	select HARDIRQS_SW_RESEND
259	help
260	  Build a generic DT-based kernel image that boots on select
261	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
262	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
263	  must be set appropriately for your board.
264
265config BCM47XX
266	bool "Broadcom BCM47XX based boards"
267	select BOOT_RAW
268	select CEVT_R4K
269	select CSRC_R4K
270	select DMA_NONCOHERENT
271	select HAVE_PCI
272	select IRQ_MIPS_CPU
273	select SYS_HAS_CPU_MIPS32_R1
274	select NO_EXCEPT_FILL
275	select SYS_SUPPORTS_32BIT_KERNEL
276	select SYS_SUPPORTS_LITTLE_ENDIAN
277	select SYS_SUPPORTS_MIPS16
278	select SYS_SUPPORTS_ZBOOT
279	select SYS_HAS_EARLY_PRINTK
280	select USE_GENERIC_EARLY_PRINTK_8250
281	select GPIOLIB
282	select LEDS_GPIO_REGISTER
283	select BCM47XX_NVRAM
284	select BCM47XX_SPROM
285	select BCM47XX_SSB if !BCM47XX_BCMA
286	help
287	  Support for BCM47XX based boards
288
289config BCM63XX
290	bool "Broadcom BCM63XX based boards"
291	select BOOT_RAW
292	select CEVT_R4K
293	select CSRC_R4K
294	select SYNC_R4K
295	select DMA_NONCOHERENT
296	select IRQ_MIPS_CPU
297	select SYS_SUPPORTS_32BIT_KERNEL
298	select SYS_SUPPORTS_BIG_ENDIAN
299	select SYS_HAS_EARLY_PRINTK
300	select SWAP_IO_SPACE
301	select GPIOLIB
302	select HAVE_CLK
303	select MIPS_L1_CACHE_SHIFT_4
304	select CLKDEV_LOOKUP
305	help
306	  Support for BCM63XX based boards
307
308config MIPS_COBALT
309	bool "Cobalt Server"
310	select CEVT_R4K
311	select CSRC_R4K
312	select CEVT_GT641XX
313	select DMA_NONCOHERENT
314	select FORCE_PCI
315	select I8253
316	select I8259
317	select IRQ_MIPS_CPU
318	select IRQ_GT641XX
319	select PCI_GT64XXX_PCI0
320	select SYS_HAS_CPU_NEVADA
321	select SYS_HAS_EARLY_PRINTK
322	select SYS_SUPPORTS_32BIT_KERNEL
323	select SYS_SUPPORTS_64BIT_KERNEL
324	select SYS_SUPPORTS_LITTLE_ENDIAN
325	select USE_GENERIC_EARLY_PRINTK_8250
326
327config MACH_DECSTATION
328	bool "DECstations"
329	select BOOT_ELF32
330	select CEVT_DS1287
331	select CEVT_R4K if CPU_R4X00
332	select CSRC_IOASIC
333	select CSRC_R4K if CPU_R4X00
334	select CPU_DADDI_WORKAROUNDS if 64BIT
335	select CPU_R4000_WORKAROUNDS if 64BIT
336	select CPU_R4400_WORKAROUNDS if 64BIT
337	select DMA_NONCOHERENT
338	select NO_IOPORT_MAP
339	select IRQ_MIPS_CPU
340	select SYS_HAS_CPU_R3000
341	select SYS_HAS_CPU_R4X00
342	select SYS_SUPPORTS_32BIT_KERNEL
343	select SYS_SUPPORTS_64BIT_KERNEL
344	select SYS_SUPPORTS_LITTLE_ENDIAN
345	select SYS_SUPPORTS_128HZ
346	select SYS_SUPPORTS_256HZ
347	select SYS_SUPPORTS_1024HZ
348	select MIPS_L1_CACHE_SHIFT_4
349	help
350	  This enables support for DEC's MIPS based workstations.  For details
351	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
352	  DECstation porting pages on <http://decstation.unix-ag.org/>.
353
354	  If you have one of the following DECstation Models you definitely
355	  want to choose R4xx0 for the CPU Type:
356
357		DECstation 5000/50
358		DECstation 5000/150
359		DECstation 5000/260
360		DECsystem 5900/260
361
362	  otherwise choose R3000.
363
364config MACH_JAZZ
365	bool "Jazz family of machines"
366	select ARC_MEMORY
367	select ARC_PROMLIB
368	select ARCH_MIGHT_HAVE_PC_PARPORT
369	select ARCH_MIGHT_HAVE_PC_SERIO
370	select FW_ARC
371	select FW_ARC32
372	select ARCH_MAY_HAVE_PC_FDC
373	select CEVT_R4K
374	select CSRC_R4K
375	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
376	select GENERIC_ISA_DMA
377	select HAVE_PCSPKR_PLATFORM
378	select IRQ_MIPS_CPU
379	select I8253
380	select I8259
381	select ISA
382	select SYS_HAS_CPU_R4X00
383	select SYS_SUPPORTS_32BIT_KERNEL
384	select SYS_SUPPORTS_64BIT_KERNEL
385	select SYS_SUPPORTS_100HZ
386	help
387	  This a family of machines based on the MIPS R4030 chipset which was
388	  used by several vendors to build RISC/os and Windows NT workstations.
389	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
390	  Olivetti M700-10 workstations.
391
392config MACH_INGENIC
393	bool "Ingenic SoC based machines"
394	select SYS_SUPPORTS_32BIT_KERNEL
395	select SYS_SUPPORTS_LITTLE_ENDIAN
396	select SYS_SUPPORTS_ZBOOT_UART16550
397	select CPU_SUPPORTS_HUGEPAGES
398	select DMA_NONCOHERENT
399	select IRQ_MIPS_CPU
400	select PINCTRL
401	select GPIOLIB
402	select COMMON_CLK
403	select GENERIC_IRQ_CHIP
404	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
405	select USE_OF
406	select LIBFDT
407
408config LANTIQ
409	bool "Lantiq based platforms"
410	select DMA_NONCOHERENT
411	select IRQ_MIPS_CPU
412	select CEVT_R4K
413	select CSRC_R4K
414	select SYS_HAS_CPU_MIPS32_R1
415	select SYS_HAS_CPU_MIPS32_R2
416	select SYS_SUPPORTS_BIG_ENDIAN
417	select SYS_SUPPORTS_32BIT_KERNEL
418	select SYS_SUPPORTS_MIPS16
419	select SYS_SUPPORTS_MULTITHREADING
420	select SYS_SUPPORTS_VPE_LOADER
421	select SYS_HAS_EARLY_PRINTK
422	select GPIOLIB
423	select SWAP_IO_SPACE
424	select BOOT_RAW
425	select CLKDEV_LOOKUP
426	select USE_OF
427	select PINCTRL
428	select PINCTRL_LANTIQ
429	select ARCH_HAS_RESET_CONTROLLER
430	select RESET_CONTROLLER
431
432config LASAT
433	bool "LASAT Networks platforms"
434	select CEVT_R4K
435	select CRC32
436	select CSRC_R4K
437	select DMA_NONCOHERENT
438	select SYS_HAS_EARLY_PRINTK
439	select HAVE_PCI
440	select IRQ_MIPS_CPU
441	select PCI_GT64XXX_PCI0
442	select MIPS_NILE4
443	select R5000_CPU_SCACHE
444	select SYS_HAS_CPU_R5000
445	select SYS_SUPPORTS_32BIT_KERNEL
446	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
447	select SYS_SUPPORTS_LITTLE_ENDIAN
448
449config MACH_LOONGSON32
450	bool "Loongson 32-bit family of machines"
451	select SYS_SUPPORTS_ZBOOT
452	help
453	  This enables support for the Loongson-1 family of machines.
454
455	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
456	  the Institute of Computing Technology (ICT), Chinese Academy of
457	  Sciences (CAS).
458
459config MACH_LOONGSON2EF
460	bool "Loongson-2E/F family of machines"
461	select SYS_SUPPORTS_ZBOOT
462	help
463	  This enables the support of early Loongson-2E/F family of machines.
464
465config MACH_LOONGSON64
466	bool "Loongson 64-bit family of machines"
467	select ARCH_SPARSEMEM_ENABLE
468	select ARCH_MIGHT_HAVE_PC_PARPORT
469	select ARCH_MIGHT_HAVE_PC_SERIO
470	select GENERIC_ISA_DMA_SUPPORT_BROKEN
471	select BOOT_ELF32
472	select BOARD_SCACHE
473	select CSRC_R4K
474	select CEVT_R4K
475	select CPU_HAS_WB
476	select FORCE_PCI
477	select ISA
478	select I8259
479	select IRQ_MIPS_CPU
480	select NR_CPUS_DEFAULT_4
481	select USE_GENERIC_EARLY_PRINTK_8250
482	select SYS_HAS_CPU_LOONGSON64
483	select SYS_HAS_EARLY_PRINTK
484	select SYS_SUPPORTS_SMP
485	select SYS_SUPPORTS_HOTPLUG_CPU
486	select SYS_SUPPORTS_NUMA
487	select SYS_SUPPORTS_64BIT_KERNEL
488	select SYS_SUPPORTS_HIGHMEM
489	select SYS_SUPPORTS_LITTLE_ENDIAN
490	select SYS_SUPPORTS_ZBOOT
491	select LOONGSON_MC146818
492	select ZONE_DMA32
493	select NUMA
494	help
495	  This enables the support of Loongson-2/3 family of machines.
496
497	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
498	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
499	  and Loongson-2F which will be removed), developed by the Institute
500	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
501
502config MACH_PISTACHIO
503	bool "IMG Pistachio SoC based boards"
504	select BOOT_ELF32
505	select BOOT_RAW
506	select CEVT_R4K
507	select CLKSRC_MIPS_GIC
508	select COMMON_CLK
509	select CSRC_R4K
510	select DMA_NONCOHERENT
511	select GPIOLIB
512	select IRQ_MIPS_CPU
513	select LIBFDT
514	select MFD_SYSCON
515	select MIPS_CPU_SCACHE
516	select MIPS_GIC
517	select PINCTRL
518	select REGULATOR
519	select SYS_HAS_CPU_MIPS32_R2
520	select SYS_SUPPORTS_32BIT_KERNEL
521	select SYS_SUPPORTS_LITTLE_ENDIAN
522	select SYS_SUPPORTS_MIPS_CPS
523	select SYS_SUPPORTS_MULTITHREADING
524	select SYS_SUPPORTS_RELOCATABLE
525	select SYS_SUPPORTS_ZBOOT
526	select SYS_HAS_EARLY_PRINTK
527	select USE_GENERIC_EARLY_PRINTK_8250
528	select USE_OF
529	help
530	  This enables support for the IMG Pistachio SoC platform.
531
532config MIPS_MALTA
533	bool "MIPS Malta board"
534	select ARCH_MAY_HAVE_PC_FDC
535	select ARCH_MIGHT_HAVE_PC_PARPORT
536	select ARCH_MIGHT_HAVE_PC_SERIO
537	select BOOT_ELF32
538	select BOOT_RAW
539	select BUILTIN_DTB
540	select CEVT_R4K
541	select CLKSRC_MIPS_GIC
542	select COMMON_CLK
543	select CSRC_R4K
544	select DMA_MAYBE_COHERENT
545	select GENERIC_ISA_DMA
546	select HAVE_PCSPKR_PLATFORM
547	select HAVE_PCI
548	select I8253
549	select I8259
550	select IRQ_MIPS_CPU
551	select LIBFDT
552	select MIPS_BONITO64
553	select MIPS_CPU_SCACHE
554	select MIPS_GIC
555	select MIPS_L1_CACHE_SHIFT_6
556	select MIPS_MSC
557	select PCI_GT64XXX_PCI0
558	select SMP_UP if SMP
559	select SWAP_IO_SPACE
560	select SYS_HAS_CPU_MIPS32_R1
561	select SYS_HAS_CPU_MIPS32_R2
562	select SYS_HAS_CPU_MIPS32_R3_5
563	select SYS_HAS_CPU_MIPS32_R5
564	select SYS_HAS_CPU_MIPS32_R6
565	select SYS_HAS_CPU_MIPS64_R1
566	select SYS_HAS_CPU_MIPS64_R2
567	select SYS_HAS_CPU_MIPS64_R6
568	select SYS_HAS_CPU_NEVADA
569	select SYS_HAS_CPU_RM7000
570	select SYS_SUPPORTS_32BIT_KERNEL
571	select SYS_SUPPORTS_64BIT_KERNEL
572	select SYS_SUPPORTS_BIG_ENDIAN
573	select SYS_SUPPORTS_HIGHMEM
574	select SYS_SUPPORTS_LITTLE_ENDIAN
575	select SYS_SUPPORTS_MICROMIPS
576	select SYS_SUPPORTS_MIPS16
577	select SYS_SUPPORTS_MIPS_CMP
578	select SYS_SUPPORTS_MIPS_CPS
579	select SYS_SUPPORTS_MULTITHREADING
580	select SYS_SUPPORTS_RELOCATABLE
581	select SYS_SUPPORTS_SMARTMIPS
582	select SYS_SUPPORTS_VPE_LOADER
583	select SYS_SUPPORTS_ZBOOT
584	select USE_OF
585	select ZONE_DMA32 if 64BIT
586	help
587	  This enables support for the MIPS Technologies Malta evaluation
588	  board.
589
590config MACH_PIC32
591	bool "Microchip PIC32 Family"
592	help
593	  This enables support for the Microchip PIC32 family of platforms.
594
595	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
596	  microcontrollers.
597
598config NEC_MARKEINS
599	bool "NEC EMMA2RH Mark-eins board"
600	select SOC_EMMA2RH
601	select HAVE_PCI
602	help
603	  This enables support for the NEC Electronics Mark-eins boards.
604
605config MACH_VR41XX
606	bool "NEC VR4100 series based machines"
607	select CEVT_R4K
608	select CSRC_R4K
609	select SYS_HAS_CPU_VR41XX
610	select SYS_SUPPORTS_MIPS16
611	select GPIOLIB
612
613config NXP_STB220
614	bool "NXP STB220 board"
615	select SOC_PNX833X
616	help
617	  Support for NXP Semiconductors STB220 Development Board.
618
619config NXP_STB225
620	bool "NXP 225 board"
621	select SOC_PNX833X
622	select SOC_PNX8335
623	help
624	  Support for NXP Semiconductors STB225 Development Board.
625
626config PMC_MSP
627	bool "PMC-Sierra MSP chipsets"
628	select CEVT_R4K
629	select CSRC_R4K
630	select DMA_NONCOHERENT
631	select SWAP_IO_SPACE
632	select NO_EXCEPT_FILL
633	select BOOT_RAW
634	select SYS_HAS_CPU_MIPS32_R1
635	select SYS_HAS_CPU_MIPS32_R2
636	select SYS_SUPPORTS_32BIT_KERNEL
637	select SYS_SUPPORTS_BIG_ENDIAN
638	select SYS_SUPPORTS_MIPS16
639	select IRQ_MIPS_CPU
640	select SERIAL_8250
641	select SERIAL_8250_CONSOLE
642	select USB_EHCI_BIG_ENDIAN_MMIO
643	select USB_EHCI_BIG_ENDIAN_DESC
644	help
645	  This adds support for the PMC-Sierra family of Multi-Service
646	  Processor System-On-A-Chips.  These parts include a number
647	  of integrated peripherals, interfaces and DSPs in addition to
648	  a variety of MIPS cores.
649
650config RALINK
651	bool "Ralink based machines"
652	select CEVT_R4K
653	select CSRC_R4K
654	select BOOT_RAW
655	select DMA_NONCOHERENT
656	select IRQ_MIPS_CPU
657	select USE_OF
658	select SYS_HAS_CPU_MIPS32_R1
659	select SYS_HAS_CPU_MIPS32_R2
660	select SYS_SUPPORTS_32BIT_KERNEL
661	select SYS_SUPPORTS_LITTLE_ENDIAN
662	select SYS_SUPPORTS_MIPS16
663	select SYS_HAS_EARLY_PRINTK
664	select CLKDEV_LOOKUP
665	select ARCH_HAS_RESET_CONTROLLER
666	select RESET_CONTROLLER
667
668config SGI_IP22
669	bool "SGI IP22 (Indy/Indigo2)"
670	select ARC_MEMORY
671	select ARC_PROMLIB
672	select FW_ARC
673	select FW_ARC32
674	select ARCH_MIGHT_HAVE_PC_SERIO
675	select BOOT_ELF32
676	select CEVT_R4K
677	select CSRC_R4K
678	select DEFAULT_SGI_PARTITION
679	select DMA_NONCOHERENT
680	select HAVE_EISA
681	select I8253
682	select I8259
683	select IP22_CPU_SCACHE
684	select IRQ_MIPS_CPU
685	select GENERIC_ISA_DMA_SUPPORT_BROKEN
686	select SGI_HAS_I8042
687	select SGI_HAS_INDYDOG
688	select SGI_HAS_HAL2
689	select SGI_HAS_SEEQ
690	select SGI_HAS_WD93
691	select SGI_HAS_ZILOG
692	select SWAP_IO_SPACE
693	select SYS_HAS_CPU_R4X00
694	select SYS_HAS_CPU_R5000
695	select SYS_HAS_EARLY_PRINTK
696	select SYS_SUPPORTS_32BIT_KERNEL
697	select SYS_SUPPORTS_64BIT_KERNEL
698	select SYS_SUPPORTS_BIG_ENDIAN
699	select MIPS_L1_CACHE_SHIFT_7
700	help
701	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
702	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
703	  that runs on these, say Y here.
704
705config SGI_IP27
706	bool "SGI IP27 (Origin200/2000)"
707	select ARCH_HAS_PHYS_TO_DMA
708	select ARCH_SPARSEMEM_ENABLE
709	select FW_ARC
710	select FW_ARC64
711	select ARC_CMDLINE_ONLY
712	select BOOT_ELF64
713	select DEFAULT_SGI_PARTITION
714	select SYS_HAS_EARLY_PRINTK
715	select HAVE_PCI
716	select IRQ_MIPS_CPU
717	select IRQ_DOMAIN_HIERARCHY
718	select NR_CPUS_DEFAULT_64
719	select PCI_DRIVERS_GENERIC
720	select PCI_XTALK_BRIDGE
721	select SYS_HAS_CPU_R10000
722	select SYS_SUPPORTS_64BIT_KERNEL
723	select SYS_SUPPORTS_BIG_ENDIAN
724	select SYS_SUPPORTS_NUMA
725	select SYS_SUPPORTS_SMP
726	select MIPS_L1_CACHE_SHIFT_7
727	help
728	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
729	  workstations.  To compile a Linux kernel that runs on these, say Y
730	  here.
731
732config SGI_IP28
733	bool "SGI IP28 (Indigo2 R10k)"
734	select ARC_MEMORY
735	select ARC_PROMLIB
736	select FW_ARC
737	select FW_ARC64
738	select ARCH_MIGHT_HAVE_PC_SERIO
739	select BOOT_ELF64
740	select CEVT_R4K
741	select CSRC_R4K
742	select DEFAULT_SGI_PARTITION
743	select DMA_NONCOHERENT
744	select GENERIC_ISA_DMA_SUPPORT_BROKEN
745	select IRQ_MIPS_CPU
746	select HAVE_EISA
747	select I8253
748	select I8259
749	select SGI_HAS_I8042
750	select SGI_HAS_INDYDOG
751	select SGI_HAS_HAL2
752	select SGI_HAS_SEEQ
753	select SGI_HAS_WD93
754	select SGI_HAS_ZILOG
755	select SWAP_IO_SPACE
756	select SYS_HAS_CPU_R10000
757	select SYS_HAS_EARLY_PRINTK
758	select SYS_SUPPORTS_64BIT_KERNEL
759	select SYS_SUPPORTS_BIG_ENDIAN
760	select MIPS_L1_CACHE_SHIFT_7
761	help
762	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
763	  kernel that runs on these, say Y here.
764
765config SGI_IP30
766	bool "SGI IP30 (Octane/Octane2)"
767	select ARCH_HAS_PHYS_TO_DMA
768	select FW_ARC
769	select FW_ARC64
770	select BOOT_ELF64
771	select CEVT_R4K
772	select CSRC_R4K
773	select SYNC_R4K if SMP
774	select ZONE_DMA32
775	select HAVE_PCI
776	select IRQ_MIPS_CPU
777	select IRQ_DOMAIN_HIERARCHY
778	select NR_CPUS_DEFAULT_2
779	select PCI_DRIVERS_GENERIC
780	select PCI_XTALK_BRIDGE
781	select SYS_HAS_EARLY_PRINTK
782	select SYS_HAS_CPU_R10000
783	select SYS_SUPPORTS_64BIT_KERNEL
784	select SYS_SUPPORTS_BIG_ENDIAN
785	select SYS_SUPPORTS_SMP
786	select MIPS_L1_CACHE_SHIFT_7
787	select ARC_MEMORY
788	help
789	  These are the SGI Octane and Octane2 graphics workstations.  To
790	  compile a Linux kernel that runs on these, say Y here.
791
792config SGI_IP32
793	bool "SGI IP32 (O2)"
794	select ARC_MEMORY
795	select ARC_PROMLIB
796	select ARCH_HAS_PHYS_TO_DMA
797	select FW_ARC
798	select FW_ARC32
799	select BOOT_ELF32
800	select CEVT_R4K
801	select CSRC_R4K
802	select DMA_NONCOHERENT
803	select HAVE_PCI
804	select IRQ_MIPS_CPU
805	select R5000_CPU_SCACHE
806	select RM7000_CPU_SCACHE
807	select SYS_HAS_CPU_R5000
808	select SYS_HAS_CPU_R10000 if BROKEN
809	select SYS_HAS_CPU_RM7000
810	select SYS_HAS_CPU_NEVADA
811	select SYS_SUPPORTS_64BIT_KERNEL
812	select SYS_SUPPORTS_BIG_ENDIAN
813	help
814	  If you want this kernel to run on SGI O2 workstation, say Y here.
815
816config SIBYTE_CRHINE
817	bool "Sibyte BCM91120C-CRhine"
818	select BOOT_ELF32
819	select SIBYTE_BCM1120
820	select SWAP_IO_SPACE
821	select SYS_HAS_CPU_SB1
822	select SYS_SUPPORTS_BIG_ENDIAN
823	select SYS_SUPPORTS_LITTLE_ENDIAN
824
825config SIBYTE_CARMEL
826	bool "Sibyte BCM91120x-Carmel"
827	select BOOT_ELF32
828	select SIBYTE_BCM1120
829	select SWAP_IO_SPACE
830	select SYS_HAS_CPU_SB1
831	select SYS_SUPPORTS_BIG_ENDIAN
832	select SYS_SUPPORTS_LITTLE_ENDIAN
833
834config SIBYTE_CRHONE
835	bool "Sibyte BCM91125C-CRhone"
836	select BOOT_ELF32
837	select SIBYTE_BCM1125
838	select SWAP_IO_SPACE
839	select SYS_HAS_CPU_SB1
840	select SYS_SUPPORTS_BIG_ENDIAN
841	select SYS_SUPPORTS_HIGHMEM
842	select SYS_SUPPORTS_LITTLE_ENDIAN
843
844config SIBYTE_RHONE
845	bool "Sibyte BCM91125E-Rhone"
846	select BOOT_ELF32
847	select SIBYTE_BCM1125H
848	select SWAP_IO_SPACE
849	select SYS_HAS_CPU_SB1
850	select SYS_SUPPORTS_BIG_ENDIAN
851	select SYS_SUPPORTS_LITTLE_ENDIAN
852
853config SIBYTE_SWARM
854	bool "Sibyte BCM91250A-SWARM"
855	select BOOT_ELF32
856	select HAVE_PATA_PLATFORM
857	select SIBYTE_SB1250
858	select SWAP_IO_SPACE
859	select SYS_HAS_CPU_SB1
860	select SYS_SUPPORTS_BIG_ENDIAN
861	select SYS_SUPPORTS_HIGHMEM
862	select SYS_SUPPORTS_LITTLE_ENDIAN
863	select ZONE_DMA32 if 64BIT
864	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
865
866config SIBYTE_LITTLESUR
867	bool "Sibyte BCM91250C2-LittleSur"
868	select BOOT_ELF32
869	select HAVE_PATA_PLATFORM
870	select SIBYTE_SB1250
871	select SWAP_IO_SPACE
872	select SYS_HAS_CPU_SB1
873	select SYS_SUPPORTS_BIG_ENDIAN
874	select SYS_SUPPORTS_HIGHMEM
875	select SYS_SUPPORTS_LITTLE_ENDIAN
876	select ZONE_DMA32 if 64BIT
877
878config SIBYTE_SENTOSA
879	bool "Sibyte BCM91250E-Sentosa"
880	select BOOT_ELF32
881	select SIBYTE_SB1250
882	select SWAP_IO_SPACE
883	select SYS_HAS_CPU_SB1
884	select SYS_SUPPORTS_BIG_ENDIAN
885	select SYS_SUPPORTS_LITTLE_ENDIAN
886	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
887
888config SIBYTE_BIGSUR
889	bool "Sibyte BCM91480B-BigSur"
890	select BOOT_ELF32
891	select NR_CPUS_DEFAULT_4
892	select SIBYTE_BCM1x80
893	select SWAP_IO_SPACE
894	select SYS_HAS_CPU_SB1
895	select SYS_SUPPORTS_BIG_ENDIAN
896	select SYS_SUPPORTS_HIGHMEM
897	select SYS_SUPPORTS_LITTLE_ENDIAN
898	select ZONE_DMA32 if 64BIT
899	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
900
901config SNI_RM
902	bool "SNI RM200/300/400"
903	select ARC_MEMORY
904	select ARC_PROMLIB
905	select FW_ARC if CPU_LITTLE_ENDIAN
906	select FW_ARC32 if CPU_LITTLE_ENDIAN
907	select FW_SNIPROM if CPU_BIG_ENDIAN
908	select ARCH_MAY_HAVE_PC_FDC
909	select ARCH_MIGHT_HAVE_PC_PARPORT
910	select ARCH_MIGHT_HAVE_PC_SERIO
911	select BOOT_ELF32
912	select CEVT_R4K
913	select CSRC_R4K
914	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
915	select DMA_NONCOHERENT
916	select GENERIC_ISA_DMA
917	select HAVE_EISA
918	select HAVE_PCSPKR_PLATFORM
919	select HAVE_PCI
920	select IRQ_MIPS_CPU
921	select I8253
922	select I8259
923	select ISA
924	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
925	select SYS_HAS_CPU_R4X00
926	select SYS_HAS_CPU_R5000
927	select SYS_HAS_CPU_R10000
928	select R5000_CPU_SCACHE
929	select SYS_HAS_EARLY_PRINTK
930	select SYS_SUPPORTS_32BIT_KERNEL
931	select SYS_SUPPORTS_64BIT_KERNEL
932	select SYS_SUPPORTS_BIG_ENDIAN
933	select SYS_SUPPORTS_HIGHMEM
934	select SYS_SUPPORTS_LITTLE_ENDIAN
935	help
936	  The SNI RM200/300/400 are MIPS-based machines manufactured by
937	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
938	  Technology and now in turn merged with Fujitsu.  Say Y here to
939	  support this machine type.
940
941config MACH_TX39XX
942	bool "Toshiba TX39 series based machines"
943
944config MACH_TX49XX
945	bool "Toshiba TX49 series based machines"
946
947config MIKROTIK_RB532
948	bool "Mikrotik RB532 boards"
949	select CEVT_R4K
950	select CSRC_R4K
951	select DMA_NONCOHERENT
952	select HAVE_PCI
953	select IRQ_MIPS_CPU
954	select SYS_HAS_CPU_MIPS32_R1
955	select SYS_SUPPORTS_32BIT_KERNEL
956	select SYS_SUPPORTS_LITTLE_ENDIAN
957	select SWAP_IO_SPACE
958	select BOOT_RAW
959	select GPIOLIB
960	select MIPS_L1_CACHE_SHIFT_4
961	help
962	  Support the Mikrotik(tm) RouterBoard 532 series,
963	  based on the IDT RC32434 SoC.
964
965config CAVIUM_OCTEON_SOC
966	bool "Cavium Networks Octeon SoC based boards"
967	select CEVT_R4K
968	select ARCH_HAS_PHYS_TO_DMA
969	select HAVE_RAPIDIO
970	select PHYS_ADDR_T_64BIT
971	select SYS_SUPPORTS_64BIT_KERNEL
972	select SYS_SUPPORTS_BIG_ENDIAN
973	select EDAC_SUPPORT
974	select EDAC_ATOMIC_SCRUB
975	select SYS_SUPPORTS_LITTLE_ENDIAN
976	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
977	select SYS_HAS_EARLY_PRINTK
978	select SYS_HAS_CPU_CAVIUM_OCTEON
979	select HAVE_PCI
980	select ZONE_DMA32
981	select HOLES_IN_ZONE
982	select GPIOLIB
983	select LIBFDT
984	select USE_OF
985	select ARCH_SPARSEMEM_ENABLE
986	select SYS_SUPPORTS_SMP
987	select NR_CPUS_DEFAULT_64
988	select MIPS_NR_CPU_NR_MAP_1024
989	select BUILTIN_DTB
990	select MTD_COMPLEX_MAPPINGS
991	select SWIOTLB
992	select SYS_SUPPORTS_RELOCATABLE
993	help
994	  This option supports all of the Octeon reference boards from Cavium
995	  Networks. It builds a kernel that dynamically determines the Octeon
996	  CPU type and supports all known board reference implementations.
997	  Some of the supported boards are:
998		EBT3000
999		EBH3000
1000		EBH3100
1001		Thunder
1002		Kodama
1003		Hikari
1004	  Say Y here for most Octeon reference boards.
1005
1006config NLM_XLR_BOARD
1007	bool "Netlogic XLR/XLS based systems"
1008	select BOOT_ELF32
1009	select NLM_COMMON
1010	select SYS_HAS_CPU_XLR
1011	select SYS_SUPPORTS_SMP
1012	select HAVE_PCI
1013	select SWAP_IO_SPACE
1014	select SYS_SUPPORTS_32BIT_KERNEL
1015	select SYS_SUPPORTS_64BIT_KERNEL
1016	select PHYS_ADDR_T_64BIT
1017	select SYS_SUPPORTS_BIG_ENDIAN
1018	select SYS_SUPPORTS_HIGHMEM
1019	select NR_CPUS_DEFAULT_32
1020	select CEVT_R4K
1021	select CSRC_R4K
1022	select IRQ_MIPS_CPU
1023	select ZONE_DMA32 if 64BIT
1024	select SYNC_R4K
1025	select SYS_HAS_EARLY_PRINTK
1026	select SYS_SUPPORTS_ZBOOT
1027	select SYS_SUPPORTS_ZBOOT_UART16550
1028	help
1029	  Support for systems based on Netlogic XLR and XLS processors.
1030	  Say Y here if you have a XLR or XLS based board.
1031
1032config NLM_XLP_BOARD
1033	bool "Netlogic XLP based systems"
1034	select BOOT_ELF32
1035	select NLM_COMMON
1036	select SYS_HAS_CPU_XLP
1037	select SYS_SUPPORTS_SMP
1038	select HAVE_PCI
1039	select SYS_SUPPORTS_32BIT_KERNEL
1040	select SYS_SUPPORTS_64BIT_KERNEL
1041	select PHYS_ADDR_T_64BIT
1042	select GPIOLIB
1043	select SYS_SUPPORTS_BIG_ENDIAN
1044	select SYS_SUPPORTS_LITTLE_ENDIAN
1045	select SYS_SUPPORTS_HIGHMEM
1046	select NR_CPUS_DEFAULT_32
1047	select CEVT_R4K
1048	select CSRC_R4K
1049	select IRQ_MIPS_CPU
1050	select ZONE_DMA32 if 64BIT
1051	select SYNC_R4K
1052	select SYS_HAS_EARLY_PRINTK
1053	select USE_OF
1054	select SYS_SUPPORTS_ZBOOT
1055	select SYS_SUPPORTS_ZBOOT_UART16550
1056	help
1057	  This board is based on Netlogic XLP Processor.
1058	  Say Y here if you have a XLP based board.
1059
1060config MIPS_PARAVIRT
1061	bool "Para-Virtualized guest system"
1062	select CEVT_R4K
1063	select CSRC_R4K
1064	select SYS_SUPPORTS_64BIT_KERNEL
1065	select SYS_SUPPORTS_32BIT_KERNEL
1066	select SYS_SUPPORTS_BIG_ENDIAN
1067	select SYS_SUPPORTS_SMP
1068	select NR_CPUS_DEFAULT_4
1069	select SYS_HAS_EARLY_PRINTK
1070	select SYS_HAS_CPU_MIPS32_R2
1071	select SYS_HAS_CPU_MIPS64_R2
1072	select SYS_HAS_CPU_CAVIUM_OCTEON
1073	select HAVE_PCI
1074	select SWAP_IO_SPACE
1075	help
1076	  This option supports guest running under ????
1077
1078endchoice
1079
1080source "arch/mips/alchemy/Kconfig"
1081source "arch/mips/ath25/Kconfig"
1082source "arch/mips/ath79/Kconfig"
1083source "arch/mips/bcm47xx/Kconfig"
1084source "arch/mips/bcm63xx/Kconfig"
1085source "arch/mips/bmips/Kconfig"
1086source "arch/mips/generic/Kconfig"
1087source "arch/mips/jazz/Kconfig"
1088source "arch/mips/jz4740/Kconfig"
1089source "arch/mips/lantiq/Kconfig"
1090source "arch/mips/lasat/Kconfig"
1091source "arch/mips/pic32/Kconfig"
1092source "arch/mips/pistachio/Kconfig"
1093source "arch/mips/pmcs-msp71xx/Kconfig"
1094source "arch/mips/ralink/Kconfig"
1095source "arch/mips/sgi-ip27/Kconfig"
1096source "arch/mips/sibyte/Kconfig"
1097source "arch/mips/txx9/Kconfig"
1098source "arch/mips/vr41xx/Kconfig"
1099source "arch/mips/cavium-octeon/Kconfig"
1100source "arch/mips/loongson2ef/Kconfig"
1101source "arch/mips/loongson32/Kconfig"
1102source "arch/mips/loongson64/Kconfig"
1103source "arch/mips/netlogic/Kconfig"
1104source "arch/mips/paravirt/Kconfig"
1105
1106endmenu
1107
1108config GENERIC_HWEIGHT
1109	bool
1110	default y
1111
1112config GENERIC_CALIBRATE_DELAY
1113	bool
1114	default y
1115
1116config SCHED_OMIT_FRAME_POINTER
1117	bool
1118	default y
1119
1120#
1121# Select some configuration options automatically based on user selections.
1122#
1123config FW_ARC
1124	bool
1125
1126config ARCH_MAY_HAVE_PC_FDC
1127	bool
1128
1129config BOOT_RAW
1130	bool
1131
1132config CEVT_BCM1480
1133	bool
1134
1135config CEVT_DS1287
1136	bool
1137
1138config CEVT_GT641XX
1139	bool
1140
1141config CEVT_R4K
1142	bool
1143
1144config CEVT_SB1250
1145	bool
1146
1147config CEVT_TXX9
1148	bool
1149
1150config CSRC_BCM1480
1151	bool
1152
1153config CSRC_IOASIC
1154	bool
1155
1156config CSRC_R4K
1157	bool
1158
1159config CSRC_SB1250
1160	bool
1161
1162config MIPS_CLOCK_VSYSCALL
1163	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1164
1165config GPIO_TXX9
1166	select GPIOLIB
1167	bool
1168
1169config FW_CFE
1170	bool
1171
1172config ARCH_SUPPORTS_UPROBES
1173	bool
1174
1175config DMA_MAYBE_COHERENT
1176	select ARCH_HAS_DMA_COHERENCE_H
1177	select DMA_NONCOHERENT
1178	bool
1179
1180config DMA_PERDEV_COHERENT
1181	bool
1182	select ARCH_HAS_SETUP_DMA_OPS
1183	select DMA_NONCOHERENT
1184
1185config DMA_NONCOHERENT
1186	bool
1187	#
1188	# MIPS allows mixing "slightly different" Cacheability and Coherency
1189	# Attribute bits.  It is believed that the uncached access through
1190	# KSEG1 and the implementation specific "uncached accelerated" used
1191	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1192	# significant advantages.
1193	#
1194	select ARCH_HAS_DMA_WRITE_COMBINE
1195	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1196	select ARCH_HAS_UNCACHED_SEGMENT
1197	select DMA_NONCOHERENT_MMAP
1198	select DMA_NONCOHERENT_CACHE_SYNC
1199	select NEED_DMA_MAP_STATE
1200
1201config SYS_HAS_EARLY_PRINTK
1202	bool
1203
1204config SYS_SUPPORTS_HOTPLUG_CPU
1205	bool
1206
1207config MIPS_BONITO64
1208	bool
1209
1210config MIPS_MSC
1211	bool
1212
1213config MIPS_NILE4
1214	bool
1215
1216config SYNC_R4K
1217	bool
1218
1219config MIPS_MACHINE
1220	def_bool n
1221
1222config NO_IOPORT_MAP
1223	def_bool n
1224
1225config GENERIC_CSUM
1226	bool
1227	default y if !CPU_HAS_LOAD_STORE_LR
1228
1229config GENERIC_ISA_DMA
1230	bool
1231	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1232	select ISA_DMA_API
1233
1234config GENERIC_ISA_DMA_SUPPORT_BROKEN
1235	bool
1236	select GENERIC_ISA_DMA
1237
1238config ISA_DMA_API
1239	bool
1240
1241config HOLES_IN_ZONE
1242	bool
1243
1244config SYS_SUPPORTS_RELOCATABLE
1245	bool
1246	help
1247	  Selected if the platform supports relocating the kernel.
1248	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1249	  to allow access to command line and entropy sources.
1250
1251config MIPS_CBPF_JIT
1252	def_bool y
1253	depends on BPF_JIT && HAVE_CBPF_JIT
1254
1255config MIPS_EBPF_JIT
1256	def_bool y
1257	depends on BPF_JIT && HAVE_EBPF_JIT
1258
1259
1260#
1261# Endianness selection.  Sufficiently obscure so many users don't know what to
1262# answer,so we try hard to limit the available choices.  Also the use of a
1263# choice statement should be more obvious to the user.
1264#
1265choice
1266	prompt "Endianness selection"
1267	help
1268	  Some MIPS machines can be configured for either little or big endian
1269	  byte order. These modes require different kernels and a different
1270	  Linux distribution.  In general there is one preferred byteorder for a
1271	  particular system but some systems are just as commonly used in the
1272	  one or the other endianness.
1273
1274config CPU_BIG_ENDIAN
1275	bool "Big endian"
1276	depends on SYS_SUPPORTS_BIG_ENDIAN
1277
1278config CPU_LITTLE_ENDIAN
1279	bool "Little endian"
1280	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1281
1282endchoice
1283
1284config EXPORT_UASM
1285	bool
1286
1287config SYS_SUPPORTS_APM_EMULATION
1288	bool
1289
1290config SYS_SUPPORTS_BIG_ENDIAN
1291	bool
1292
1293config SYS_SUPPORTS_LITTLE_ENDIAN
1294	bool
1295
1296config SYS_SUPPORTS_HUGETLBFS
1297	bool
1298	depends on CPU_SUPPORTS_HUGEPAGES
1299	default y
1300
1301config MIPS_HUGE_TLB_SUPPORT
1302	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1303
1304config IRQ_CPU_RM7K
1305	bool
1306
1307config IRQ_MSP_SLP
1308	bool
1309
1310config IRQ_MSP_CIC
1311	bool
1312
1313config IRQ_TXX9
1314	bool
1315
1316config IRQ_GT641XX
1317	bool
1318
1319config PCI_GT64XXX_PCI0
1320	bool
1321
1322config PCI_XTALK_BRIDGE
1323	bool
1324
1325config NO_EXCEPT_FILL
1326	bool
1327
1328config SOC_EMMA2RH
1329	bool
1330	select CEVT_R4K
1331	select CSRC_R4K
1332	select DMA_NONCOHERENT
1333	select IRQ_MIPS_CPU
1334	select SWAP_IO_SPACE
1335	select SYS_HAS_CPU_R5500
1336	select SYS_SUPPORTS_32BIT_KERNEL
1337	select SYS_SUPPORTS_64BIT_KERNEL
1338	select SYS_SUPPORTS_BIG_ENDIAN
1339
1340config SOC_PNX833X
1341	bool
1342	select CEVT_R4K
1343	select CSRC_R4K
1344	select IRQ_MIPS_CPU
1345	select DMA_NONCOHERENT
1346	select SYS_HAS_CPU_MIPS32_R2
1347	select SYS_SUPPORTS_32BIT_KERNEL
1348	select SYS_SUPPORTS_LITTLE_ENDIAN
1349	select SYS_SUPPORTS_BIG_ENDIAN
1350	select SYS_SUPPORTS_MIPS16
1351	select CPU_MIPSR2_IRQ_VI
1352
1353config SOC_PNX8335
1354	bool
1355	select SOC_PNX833X
1356
1357config MIPS_SPRAM
1358	bool
1359
1360config SWAP_IO_SPACE
1361	bool
1362
1363config SGI_HAS_INDYDOG
1364	bool
1365
1366config SGI_HAS_HAL2
1367	bool
1368
1369config SGI_HAS_SEEQ
1370	bool
1371
1372config SGI_HAS_WD93
1373	bool
1374
1375config SGI_HAS_ZILOG
1376	bool
1377
1378config SGI_HAS_I8042
1379	bool
1380
1381config DEFAULT_SGI_PARTITION
1382	bool
1383
1384config FW_ARC32
1385	bool
1386
1387config FW_SNIPROM
1388	bool
1389
1390config BOOT_ELF32
1391	bool
1392
1393config MIPS_L1_CACHE_SHIFT_4
1394	bool
1395
1396config MIPS_L1_CACHE_SHIFT_5
1397	bool
1398
1399config MIPS_L1_CACHE_SHIFT_6
1400	bool
1401
1402config MIPS_L1_CACHE_SHIFT_7
1403	bool
1404
1405config MIPS_L1_CACHE_SHIFT
1406	int
1407	default "7" if MIPS_L1_CACHE_SHIFT_7
1408	default "6" if MIPS_L1_CACHE_SHIFT_6
1409	default "5" if MIPS_L1_CACHE_SHIFT_5
1410	default "4" if MIPS_L1_CACHE_SHIFT_4
1411	default "5"
1412
1413config HAVE_STD_PC_SERIAL_PORT
1414	bool
1415
1416config ARC_CMDLINE_ONLY
1417	bool
1418
1419config ARC_CONSOLE
1420	bool "ARC console support"
1421	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1422
1423config ARC_MEMORY
1424	bool
1425
1426config ARC_PROMLIB
1427	bool
1428
1429config FW_ARC64
1430	bool
1431
1432config BOOT_ELF64
1433	bool
1434
1435menu "CPU selection"
1436
1437choice
1438	prompt "CPU type"
1439	default CPU_R4X00
1440
1441config CPU_LOONGSON64
1442	bool "Loongson 64-bit CPU"
1443	depends on SYS_HAS_CPU_LOONGSON64
1444	select ARCH_HAS_PHYS_TO_DMA
1445	select CPU_SUPPORTS_64BIT_KERNEL
1446	select CPU_SUPPORTS_HIGHMEM
1447	select CPU_SUPPORTS_HUGEPAGES
1448	select CPU_SUPPORTS_MSA
1449	select CPU_HAS_LOAD_STORE_LR
1450	select WEAK_ORDERING
1451	select WEAK_REORDERING_BEYOND_LLSC
1452	select MIPS_ASID_BITS_VARIABLE
1453	select MIPS_PGD_C0_CONTEXT
1454	select MIPS_L1_CACHE_SHIFT_6
1455	select GPIOLIB
1456	select SWIOTLB
1457	help
1458		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1459		cores implements the MIPS64R2 instruction set with many extensions,
1460		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1461		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1462		Loongson-2E/2F is not covered here and will be removed in future.
1463
1464config LOONGSON3_ENHANCEMENT
1465	bool "New Loongson-3 CPU Enhancements"
1466	default n
1467	select CPU_MIPSR2
1468	select CPU_HAS_PREFETCH
1469	depends on CPU_LOONGSON64
1470	help
1471	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1472	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1473	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1474	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1475	  Fast TLB refill support, etc.
1476
1477	  This option enable those enhancements which are not probed at run
1478	  time. If you want a generic kernel to run on all Loongson 3 machines,
1479	  please say 'N' here. If you want a high-performance kernel to run on
1480	  new Loongson-3 machines only, please say 'Y' here.
1481
1482config CPU_LOONGSON3_WORKAROUNDS
1483	bool "Old Loongson-3 LLSC Workarounds"
1484	default y if SMP
1485	depends on CPU_LOONGSON64
1486	help
1487	  Loongson-3 processors have the llsc issues which require workarounds.
1488	  Without workarounds the system may hang unexpectedly.
1489
1490	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1491	  The workarounds have no significant side effect on them but may
1492	  decrease the performance of the system so this option should be
1493	  disabled unless the kernel is intended to be run on old systems.
1494
1495	  If unsure, please say Y.
1496
1497config CPU_LOONGSON2E
1498	bool "Loongson 2E"
1499	depends on SYS_HAS_CPU_LOONGSON2E
1500	select CPU_LOONGSON2EF
1501	help
1502	  The Loongson 2E processor implements the MIPS III instruction set
1503	  with many extensions.
1504
1505	  It has an internal FPGA northbridge, which is compatible to
1506	  bonito64.
1507
1508config CPU_LOONGSON2F
1509	bool "Loongson 2F"
1510	depends on SYS_HAS_CPU_LOONGSON2F
1511	select CPU_LOONGSON2EF
1512	select GPIOLIB
1513	help
1514	  The Loongson 2F processor implements the MIPS III instruction set
1515	  with many extensions.
1516
1517	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1518	  have a similar programming interface with FPGA northbridge used in
1519	  Loongson2E.
1520
1521config CPU_LOONGSON1B
1522	bool "Loongson 1B"
1523	depends on SYS_HAS_CPU_LOONGSON1B
1524	select CPU_LOONGSON32
1525	select LEDS_GPIO_REGISTER
1526	help
1527	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1528	  Release 1 instruction set and part of the MIPS32 Release 2
1529	  instruction set.
1530
1531config CPU_LOONGSON1C
1532	bool "Loongson 1C"
1533	depends on SYS_HAS_CPU_LOONGSON1C
1534	select CPU_LOONGSON32
1535	select LEDS_GPIO_REGISTER
1536	help
1537	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1538	  Release 1 instruction set and part of the MIPS32 Release 2
1539	  instruction set.
1540
1541config CPU_MIPS32_R1
1542	bool "MIPS32 Release 1"
1543	depends on SYS_HAS_CPU_MIPS32_R1
1544	select CPU_HAS_PREFETCH
1545	select CPU_HAS_LOAD_STORE_LR
1546	select CPU_SUPPORTS_32BIT_KERNEL
1547	select CPU_SUPPORTS_HIGHMEM
1548	help
1549	  Choose this option to build a kernel for release 1 or later of the
1550	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1551	  MIPS processor are based on a MIPS32 processor.  If you know the
1552	  specific type of processor in your system, choose those that one
1553	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1554	  Release 2 of the MIPS32 architecture is available since several
1555	  years so chances are you even have a MIPS32 Release 2 processor
1556	  in which case you should choose CPU_MIPS32_R2 instead for better
1557	  performance.
1558
1559config CPU_MIPS32_R2
1560	bool "MIPS32 Release 2"
1561	depends on SYS_HAS_CPU_MIPS32_R2
1562	select CPU_HAS_PREFETCH
1563	select CPU_HAS_LOAD_STORE_LR
1564	select CPU_SUPPORTS_32BIT_KERNEL
1565	select CPU_SUPPORTS_HIGHMEM
1566	select CPU_SUPPORTS_MSA
1567	select HAVE_KVM
1568	help
1569	  Choose this option to build a kernel for release 2 or later of the
1570	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1571	  MIPS processor are based on a MIPS32 processor.  If you know the
1572	  specific type of processor in your system, choose those that one
1573	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1574
1575config CPU_MIPS32_R6
1576	bool "MIPS32 Release 6"
1577	depends on SYS_HAS_CPU_MIPS32_R6
1578	select CPU_HAS_PREFETCH
1579	select CPU_SUPPORTS_32BIT_KERNEL
1580	select CPU_SUPPORTS_HIGHMEM
1581	select CPU_SUPPORTS_MSA
1582	select HAVE_KVM
1583	select MIPS_O32_FP64_SUPPORT
1584	help
1585	  Choose this option to build a kernel for release 6 or later of the
1586	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1587	  family, are based on a MIPS32r6 processor. If you own an older
1588	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1589
1590config CPU_MIPS64_R1
1591	bool "MIPS64 Release 1"
1592	depends on SYS_HAS_CPU_MIPS64_R1
1593	select CPU_HAS_PREFETCH
1594	select CPU_HAS_LOAD_STORE_LR
1595	select CPU_SUPPORTS_32BIT_KERNEL
1596	select CPU_SUPPORTS_64BIT_KERNEL
1597	select CPU_SUPPORTS_HIGHMEM
1598	select CPU_SUPPORTS_HUGEPAGES
1599	help
1600	  Choose this option to build a kernel for release 1 or later of the
1601	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1602	  MIPS processor are based on a MIPS64 processor.  If you know the
1603	  specific type of processor in your system, choose those that one
1604	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1605	  Release 2 of the MIPS64 architecture is available since several
1606	  years so chances are you even have a MIPS64 Release 2 processor
1607	  in which case you should choose CPU_MIPS64_R2 instead for better
1608	  performance.
1609
1610config CPU_MIPS64_R2
1611	bool "MIPS64 Release 2"
1612	depends on SYS_HAS_CPU_MIPS64_R2
1613	select CPU_HAS_PREFETCH
1614	select CPU_HAS_LOAD_STORE_LR
1615	select CPU_SUPPORTS_32BIT_KERNEL
1616	select CPU_SUPPORTS_64BIT_KERNEL
1617	select CPU_SUPPORTS_HIGHMEM
1618	select CPU_SUPPORTS_HUGEPAGES
1619	select CPU_SUPPORTS_MSA
1620	select HAVE_KVM
1621	help
1622	  Choose this option to build a kernel for release 2 or later of the
1623	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1624	  MIPS processor are based on a MIPS64 processor.  If you know the
1625	  specific type of processor in your system, choose those that one
1626	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1627
1628config CPU_MIPS64_R6
1629	bool "MIPS64 Release 6"
1630	depends on SYS_HAS_CPU_MIPS64_R6
1631	select CPU_HAS_PREFETCH
1632	select CPU_SUPPORTS_32BIT_KERNEL
1633	select CPU_SUPPORTS_64BIT_KERNEL
1634	select CPU_SUPPORTS_HIGHMEM
1635	select CPU_SUPPORTS_HUGEPAGES
1636	select CPU_SUPPORTS_MSA
1637	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1638	select HAVE_KVM
1639	help
1640	  Choose this option to build a kernel for release 6 or later of the
1641	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1642	  family, are based on a MIPS64r6 processor. If you own an older
1643	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1644
1645config CPU_R3000
1646	bool "R3000"
1647	depends on SYS_HAS_CPU_R3000
1648	select CPU_HAS_WB
1649	select CPU_HAS_LOAD_STORE_LR
1650	select CPU_R3K_TLB
1651	select CPU_SUPPORTS_32BIT_KERNEL
1652	select CPU_SUPPORTS_HIGHMEM
1653	help
1654	  Please make sure to pick the right CPU type. Linux/MIPS is not
1655	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1656	  *not* work on R4000 machines and vice versa.  However, since most
1657	  of the supported machines have an R4000 (or similar) CPU, R4x00
1658	  might be a safe bet.  If the resulting kernel does not work,
1659	  try to recompile with R3000.
1660
1661config CPU_TX39XX
1662	bool "R39XX"
1663	depends on SYS_HAS_CPU_TX39XX
1664	select CPU_SUPPORTS_32BIT_KERNEL
1665	select CPU_HAS_LOAD_STORE_LR
1666	select CPU_R3K_TLB
1667
1668config CPU_VR41XX
1669	bool "R41xx"
1670	depends on SYS_HAS_CPU_VR41XX
1671	select CPU_SUPPORTS_32BIT_KERNEL
1672	select CPU_SUPPORTS_64BIT_KERNEL
1673	select CPU_HAS_LOAD_STORE_LR
1674	help
1675	  The options selects support for the NEC VR4100 series of processors.
1676	  Only choose this option if you have one of these processors as a
1677	  kernel built with this option will not run on any other type of
1678	  processor or vice versa.
1679
1680config CPU_R4X00
1681	bool "R4x00"
1682	depends on SYS_HAS_CPU_R4X00
1683	select CPU_SUPPORTS_32BIT_KERNEL
1684	select CPU_SUPPORTS_64BIT_KERNEL
1685	select CPU_SUPPORTS_HUGEPAGES
1686	select CPU_HAS_LOAD_STORE_LR
1687	help
1688	  MIPS Technologies R4000-series processors other than 4300, including
1689	  the R4000, R4400, R4600, and 4700.
1690
1691config CPU_TX49XX
1692	bool "R49XX"
1693	depends on SYS_HAS_CPU_TX49XX
1694	select CPU_HAS_PREFETCH
1695	select CPU_HAS_LOAD_STORE_LR
1696	select CPU_SUPPORTS_32BIT_KERNEL
1697	select CPU_SUPPORTS_64BIT_KERNEL
1698	select CPU_SUPPORTS_HUGEPAGES
1699
1700config CPU_R5000
1701	bool "R5000"
1702	depends on SYS_HAS_CPU_R5000
1703	select CPU_SUPPORTS_32BIT_KERNEL
1704	select CPU_SUPPORTS_64BIT_KERNEL
1705	select CPU_SUPPORTS_HUGEPAGES
1706	select CPU_HAS_LOAD_STORE_LR
1707	help
1708	  MIPS Technologies R5000-series processors other than the Nevada.
1709
1710config CPU_R5500
1711	bool "R5500"
1712	depends on SYS_HAS_CPU_R5500
1713	select CPU_SUPPORTS_32BIT_KERNEL
1714	select CPU_SUPPORTS_64BIT_KERNEL
1715	select CPU_SUPPORTS_HUGEPAGES
1716	select CPU_HAS_LOAD_STORE_LR
1717	help
1718	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1719	  instruction set.
1720
1721config CPU_NEVADA
1722	bool "RM52xx"
1723	depends on SYS_HAS_CPU_NEVADA
1724	select CPU_SUPPORTS_32BIT_KERNEL
1725	select CPU_SUPPORTS_64BIT_KERNEL
1726	select CPU_SUPPORTS_HUGEPAGES
1727	select CPU_HAS_LOAD_STORE_LR
1728	help
1729	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1730
1731config CPU_R10000
1732	bool "R10000"
1733	depends on SYS_HAS_CPU_R10000
1734	select CPU_HAS_PREFETCH
1735	select CPU_HAS_LOAD_STORE_LR
1736	select CPU_SUPPORTS_32BIT_KERNEL
1737	select CPU_SUPPORTS_64BIT_KERNEL
1738	select CPU_SUPPORTS_HIGHMEM
1739	select CPU_SUPPORTS_HUGEPAGES
1740	help
1741	  MIPS Technologies R10000-series processors.
1742
1743config CPU_RM7000
1744	bool "RM7000"
1745	depends on SYS_HAS_CPU_RM7000
1746	select CPU_HAS_PREFETCH
1747	select CPU_HAS_LOAD_STORE_LR
1748	select CPU_SUPPORTS_32BIT_KERNEL
1749	select CPU_SUPPORTS_64BIT_KERNEL
1750	select CPU_SUPPORTS_HIGHMEM
1751	select CPU_SUPPORTS_HUGEPAGES
1752
1753config CPU_SB1
1754	bool "SB1"
1755	depends on SYS_HAS_CPU_SB1
1756	select CPU_HAS_LOAD_STORE_LR
1757	select CPU_SUPPORTS_32BIT_KERNEL
1758	select CPU_SUPPORTS_64BIT_KERNEL
1759	select CPU_SUPPORTS_HIGHMEM
1760	select CPU_SUPPORTS_HUGEPAGES
1761	select WEAK_ORDERING
1762
1763config CPU_CAVIUM_OCTEON
1764	bool "Cavium Octeon processor"
1765	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1766	select CPU_HAS_PREFETCH
1767	select CPU_HAS_LOAD_STORE_LR
1768	select CPU_SUPPORTS_64BIT_KERNEL
1769	select WEAK_ORDERING
1770	select CPU_SUPPORTS_HIGHMEM
1771	select CPU_SUPPORTS_HUGEPAGES
1772	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1773	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1774	select MIPS_L1_CACHE_SHIFT_7
1775	select HAVE_KVM
1776	help
1777	  The Cavium Octeon processor is a highly integrated chip containing
1778	  many ethernet hardware widgets for networking tasks. The processor
1779	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1780	  Full details can be found at http://www.caviumnetworks.com.
1781
1782config CPU_BMIPS
1783	bool "Broadcom BMIPS"
1784	depends on SYS_HAS_CPU_BMIPS
1785	select CPU_MIPS32
1786	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1787	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1788	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1789	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1790	select CPU_SUPPORTS_32BIT_KERNEL
1791	select DMA_NONCOHERENT
1792	select IRQ_MIPS_CPU
1793	select SWAP_IO_SPACE
1794	select WEAK_ORDERING
1795	select CPU_SUPPORTS_HIGHMEM
1796	select CPU_HAS_PREFETCH
1797	select CPU_HAS_LOAD_STORE_LR
1798	select CPU_SUPPORTS_CPUFREQ
1799	select MIPS_EXTERNAL_TIMER
1800	help
1801	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1802
1803config CPU_XLR
1804	bool "Netlogic XLR SoC"
1805	depends on SYS_HAS_CPU_XLR
1806	select CPU_HAS_LOAD_STORE_LR
1807	select CPU_SUPPORTS_32BIT_KERNEL
1808	select CPU_SUPPORTS_64BIT_KERNEL
1809	select CPU_SUPPORTS_HIGHMEM
1810	select CPU_SUPPORTS_HUGEPAGES
1811	select WEAK_ORDERING
1812	select WEAK_REORDERING_BEYOND_LLSC
1813	help
1814	  Netlogic Microsystems XLR/XLS processors.
1815
1816config CPU_XLP
1817	bool "Netlogic XLP SoC"
1818	depends on SYS_HAS_CPU_XLP
1819	select CPU_SUPPORTS_32BIT_KERNEL
1820	select CPU_SUPPORTS_64BIT_KERNEL
1821	select CPU_SUPPORTS_HIGHMEM
1822	select WEAK_ORDERING
1823	select WEAK_REORDERING_BEYOND_LLSC
1824	select CPU_HAS_PREFETCH
1825	select CPU_HAS_LOAD_STORE_LR
1826	select CPU_MIPSR2
1827	select CPU_SUPPORTS_HUGEPAGES
1828	select MIPS_ASID_BITS_VARIABLE
1829	help
1830	  Netlogic Microsystems XLP processors.
1831endchoice
1832
1833config CPU_MIPS32_3_5_FEATURES
1834	bool "MIPS32 Release 3.5 Features"
1835	depends on SYS_HAS_CPU_MIPS32_R3_5
1836	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1837	help
1838	  Choose this option to build a kernel for release 2 or later of the
1839	  MIPS32 architecture including features from the 3.5 release such as
1840	  support for Enhanced Virtual Addressing (EVA).
1841
1842config CPU_MIPS32_3_5_EVA
1843	bool "Enhanced Virtual Addressing (EVA)"
1844	depends on CPU_MIPS32_3_5_FEATURES
1845	select EVA
1846	default y
1847	help
1848	  Choose this option if you want to enable the Enhanced Virtual
1849	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1850	  One of its primary benefits is an increase in the maximum size
1851	  of lowmem (up to 3GB). If unsure, say 'N' here.
1852
1853config CPU_MIPS32_R5_FEATURES
1854	bool "MIPS32 Release 5 Features"
1855	depends on SYS_HAS_CPU_MIPS32_R5
1856	depends on CPU_MIPS32_R2
1857	help
1858	  Choose this option to build a kernel for release 2 or later of the
1859	  MIPS32 architecture including features from release 5 such as
1860	  support for Extended Physical Addressing (XPA).
1861
1862config CPU_MIPS32_R5_XPA
1863	bool "Extended Physical Addressing (XPA)"
1864	depends on CPU_MIPS32_R5_FEATURES
1865	depends on !EVA
1866	depends on !PAGE_SIZE_4KB
1867	depends on SYS_SUPPORTS_HIGHMEM
1868	select XPA
1869	select HIGHMEM
1870	select PHYS_ADDR_T_64BIT
1871	default n
1872	help
1873	  Choose this option if you want to enable the Extended Physical
1874	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1875	  benefit is to increase physical addressing equal to or greater
1876	  than 40 bits. Note that this has the side effect of turning on
1877	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1878	  If unsure, say 'N' here.
1879
1880if CPU_LOONGSON2F
1881config CPU_NOP_WORKAROUNDS
1882	bool
1883
1884config CPU_JUMP_WORKAROUNDS
1885	bool
1886
1887config CPU_LOONGSON2F_WORKAROUNDS
1888	bool "Loongson 2F Workarounds"
1889	default y
1890	select CPU_NOP_WORKAROUNDS
1891	select CPU_JUMP_WORKAROUNDS
1892	help
1893	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1894	  require workarounds.  Without workarounds the system may hang
1895	  unexpectedly.  For more information please refer to the gas
1896	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1897
1898	  Loongson 2F03 and later have fixed these issues and no workarounds
1899	  are needed.  The workarounds have no significant side effect on them
1900	  but may decrease the performance of the system so this option should
1901	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1902	  systems.
1903
1904	  If unsure, please say Y.
1905endif # CPU_LOONGSON2F
1906
1907config SYS_SUPPORTS_ZBOOT
1908	bool
1909	select HAVE_KERNEL_GZIP
1910	select HAVE_KERNEL_BZIP2
1911	select HAVE_KERNEL_LZ4
1912	select HAVE_KERNEL_LZMA
1913	select HAVE_KERNEL_LZO
1914	select HAVE_KERNEL_XZ
1915
1916config SYS_SUPPORTS_ZBOOT_UART16550
1917	bool
1918	select SYS_SUPPORTS_ZBOOT
1919
1920config SYS_SUPPORTS_ZBOOT_UART_PROM
1921	bool
1922	select SYS_SUPPORTS_ZBOOT
1923
1924config CPU_LOONGSON2EF
1925	bool
1926	select CPU_SUPPORTS_32BIT_KERNEL
1927	select CPU_SUPPORTS_64BIT_KERNEL
1928	select CPU_SUPPORTS_HIGHMEM
1929	select CPU_SUPPORTS_HUGEPAGES
1930	select ARCH_HAS_PHYS_TO_DMA
1931	select CPU_HAS_LOAD_STORE_LR
1932
1933config CPU_LOONGSON32
1934	bool
1935	select CPU_MIPS32
1936	select CPU_MIPSR2
1937	select CPU_HAS_PREFETCH
1938	select CPU_HAS_LOAD_STORE_LR
1939	select CPU_SUPPORTS_32BIT_KERNEL
1940	select CPU_SUPPORTS_HIGHMEM
1941	select CPU_SUPPORTS_CPUFREQ
1942
1943config CPU_BMIPS32_3300
1944	select SMP_UP if SMP
1945	bool
1946
1947config CPU_BMIPS4350
1948	bool
1949	select SYS_SUPPORTS_SMP
1950	select SYS_SUPPORTS_HOTPLUG_CPU
1951
1952config CPU_BMIPS4380
1953	bool
1954	select MIPS_L1_CACHE_SHIFT_6
1955	select SYS_SUPPORTS_SMP
1956	select SYS_SUPPORTS_HOTPLUG_CPU
1957	select CPU_HAS_RIXI
1958
1959config CPU_BMIPS5000
1960	bool
1961	select MIPS_CPU_SCACHE
1962	select MIPS_L1_CACHE_SHIFT_7
1963	select SYS_SUPPORTS_SMP
1964	select SYS_SUPPORTS_HOTPLUG_CPU
1965	select CPU_HAS_RIXI
1966
1967config SYS_HAS_CPU_LOONGSON64
1968	bool
1969	select CPU_SUPPORTS_CPUFREQ
1970	select CPU_HAS_RIXI
1971
1972config SYS_HAS_CPU_LOONGSON2E
1973	bool
1974
1975config SYS_HAS_CPU_LOONGSON2F
1976	bool
1977	select CPU_SUPPORTS_CPUFREQ
1978	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1979
1980config SYS_HAS_CPU_LOONGSON1B
1981	bool
1982
1983config SYS_HAS_CPU_LOONGSON1C
1984	bool
1985
1986config SYS_HAS_CPU_MIPS32_R1
1987	bool
1988
1989config SYS_HAS_CPU_MIPS32_R2
1990	bool
1991
1992config SYS_HAS_CPU_MIPS32_R3_5
1993	bool
1994
1995config SYS_HAS_CPU_MIPS32_R5
1996	bool
1997	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1998
1999config SYS_HAS_CPU_MIPS32_R6
2000	bool
2001	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2002
2003config SYS_HAS_CPU_MIPS64_R1
2004	bool
2005
2006config SYS_HAS_CPU_MIPS64_R2
2007	bool
2008
2009config SYS_HAS_CPU_MIPS64_R6
2010	bool
2011	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2012
2013config SYS_HAS_CPU_R3000
2014	bool
2015
2016config SYS_HAS_CPU_TX39XX
2017	bool
2018
2019config SYS_HAS_CPU_VR41XX
2020	bool
2021
2022config SYS_HAS_CPU_R4X00
2023	bool
2024
2025config SYS_HAS_CPU_TX49XX
2026	bool
2027
2028config SYS_HAS_CPU_R5000
2029	bool
2030
2031config SYS_HAS_CPU_R5500
2032	bool
2033
2034config SYS_HAS_CPU_NEVADA
2035	bool
2036
2037config SYS_HAS_CPU_R10000
2038	bool
2039	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2040
2041config SYS_HAS_CPU_RM7000
2042	bool
2043
2044config SYS_HAS_CPU_SB1
2045	bool
2046
2047config SYS_HAS_CPU_CAVIUM_OCTEON
2048	bool
2049
2050config SYS_HAS_CPU_BMIPS
2051	bool
2052
2053config SYS_HAS_CPU_BMIPS32_3300
2054	bool
2055	select SYS_HAS_CPU_BMIPS
2056
2057config SYS_HAS_CPU_BMIPS4350
2058	bool
2059	select SYS_HAS_CPU_BMIPS
2060
2061config SYS_HAS_CPU_BMIPS4380
2062	bool
2063	select SYS_HAS_CPU_BMIPS
2064
2065config SYS_HAS_CPU_BMIPS5000
2066	bool
2067	select SYS_HAS_CPU_BMIPS
2068	select ARCH_HAS_SYNC_DMA_FOR_CPU
2069
2070config SYS_HAS_CPU_XLR
2071	bool
2072
2073config SYS_HAS_CPU_XLP
2074	bool
2075
2076#
2077# CPU may reorder R->R, R->W, W->R, W->W
2078# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2079#
2080config WEAK_ORDERING
2081	bool
2082
2083#
2084# CPU may reorder reads and writes beyond LL/SC
2085# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2086#
2087config WEAK_REORDERING_BEYOND_LLSC
2088	bool
2089endmenu
2090
2091#
2092# These two indicate any level of the MIPS32 and MIPS64 architecture
2093#
2094config CPU_MIPS32
2095	bool
2096	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2097
2098config CPU_MIPS64
2099	bool
2100	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2101
2102#
2103# These indicate the revision of the architecture
2104#
2105config CPU_MIPSR1
2106	bool
2107	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2108
2109config CPU_MIPSR2
2110	bool
2111	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2112	select CPU_HAS_RIXI
2113	select MIPS_SPRAM
2114
2115config CPU_MIPSR6
2116	bool
2117	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2118	select CPU_HAS_RIXI
2119	select HAVE_ARCH_BITREVERSE
2120	select MIPS_ASID_BITS_VARIABLE
2121	select MIPS_CRC_SUPPORT
2122	select MIPS_SPRAM
2123
2124config TARGET_ISA_REV
2125	int
2126	default 1 if CPU_MIPSR1
2127	default 2 if CPU_MIPSR2
2128	default 6 if CPU_MIPSR6
2129	default 0
2130	help
2131	  Reflects the ISA revision being targeted by the kernel build. This
2132	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2133
2134config EVA
2135	bool
2136
2137config XPA
2138	bool
2139
2140config SYS_SUPPORTS_32BIT_KERNEL
2141	bool
2142config SYS_SUPPORTS_64BIT_KERNEL
2143	bool
2144config CPU_SUPPORTS_32BIT_KERNEL
2145	bool
2146config CPU_SUPPORTS_64BIT_KERNEL
2147	bool
2148config CPU_SUPPORTS_CPUFREQ
2149	bool
2150config CPU_SUPPORTS_ADDRWINCFG
2151	bool
2152config CPU_SUPPORTS_HUGEPAGES
2153	bool
2154	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2155config MIPS_PGD_C0_CONTEXT
2156	bool
2157	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2158
2159#
2160# Set to y for ptrace access to watch registers.
2161#
2162config HARDWARE_WATCHPOINTS
2163	bool
2164	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2165
2166menu "Kernel type"
2167
2168choice
2169	prompt "Kernel code model"
2170	help
2171	  You should only select this option if you have a workload that
2172	  actually benefits from 64-bit processing or if your machine has
2173	  large memory.  You will only be presented a single option in this
2174	  menu if your system does not support both 32-bit and 64-bit kernels.
2175
2176config 32BIT
2177	bool "32-bit kernel"
2178	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2179	select TRAD_SIGNALS
2180	help
2181	  Select this option if you want to build a 32-bit kernel.
2182
2183config 64BIT
2184	bool "64-bit kernel"
2185	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2186	help
2187	  Select this option if you want to build a 64-bit kernel.
2188
2189endchoice
2190
2191config KVM_GUEST
2192	bool "KVM Guest Kernel"
2193	depends on BROKEN_ON_SMP
2194	help
2195	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2196	  mode.
2197
2198config KVM_GUEST_TIMER_FREQ
2199	int "Count/Compare Timer Frequency (MHz)"
2200	depends on KVM_GUEST
2201	default 100
2202	help
2203	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2204	  emulation when determining guest CPU Frequency. Instead, the guest's
2205	  timer frequency is specified directly.
2206
2207config MIPS_VA_BITS_48
2208	bool "48 bits virtual memory"
2209	depends on 64BIT
2210	help
2211	  Support a maximum at least 48 bits of application virtual
2212	  memory.  Default is 40 bits or less, depending on the CPU.
2213	  For page sizes 16k and above, this option results in a small
2214	  memory overhead for page tables.  For 4k page size, a fourth
2215	  level of page tables is added which imposes both a memory
2216	  overhead as well as slower TLB fault handling.
2217
2218	  If unsure, say N.
2219
2220choice
2221	prompt "Kernel page size"
2222	default PAGE_SIZE_4KB
2223
2224config PAGE_SIZE_4KB
2225	bool "4kB"
2226	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2227	help
2228	  This option select the standard 4kB Linux page size.  On some
2229	  R3000-family processors this is the only available page size.  Using
2230	  4kB page size will minimize memory consumption and is therefore
2231	  recommended for low memory systems.
2232
2233config PAGE_SIZE_8KB
2234	bool "8kB"
2235	depends on CPU_CAVIUM_OCTEON
2236	depends on !MIPS_VA_BITS_48
2237	help
2238	  Using 8kB page size will result in higher performance kernel at
2239	  the price of higher memory consumption.  This option is available
2240	  only on cnMIPS processors.  Note that you will need a suitable Linux
2241	  distribution to support this.
2242
2243config PAGE_SIZE_16KB
2244	bool "16kB"
2245	depends on !CPU_R3000 && !CPU_TX39XX
2246	help
2247	  Using 16kB page size will result in higher performance kernel at
2248	  the price of higher memory consumption.  This option is available on
2249	  all non-R3000 family processors.  Note that you will need a suitable
2250	  Linux distribution to support this.
2251
2252config PAGE_SIZE_32KB
2253	bool "32kB"
2254	depends on CPU_CAVIUM_OCTEON
2255	depends on !MIPS_VA_BITS_48
2256	help
2257	  Using 32kB page size will result in higher performance kernel at
2258	  the price of higher memory consumption.  This option is available
2259	  only on cnMIPS cores.  Note that you will need a suitable Linux
2260	  distribution to support this.
2261
2262config PAGE_SIZE_64KB
2263	bool "64kB"
2264	depends on !CPU_R3000 && !CPU_TX39XX
2265	help
2266	  Using 64kB page size will result in higher performance kernel at
2267	  the price of higher memory consumption.  This option is available on
2268	  all non-R3000 family processor.  Not that at the time of this
2269	  writing this option is still high experimental.
2270
2271endchoice
2272
2273config FORCE_MAX_ZONEORDER
2274	int "Maximum zone order"
2275	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2276	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2277	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2278	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2279	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2280	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2281	range 11 64
2282	default "11"
2283	help
2284	  The kernel memory allocator divides physically contiguous memory
2285	  blocks into "zones", where each zone is a power of two number of
2286	  pages.  This option selects the largest power of two that the kernel
2287	  keeps in the memory allocator.  If you need to allocate very large
2288	  blocks of physically contiguous memory, then you may need to
2289	  increase this value.
2290
2291	  This config option is actually maximum order plus one. For example,
2292	  a value of 11 means that the largest free memory block is 2^10 pages.
2293
2294	  The page size is not necessarily 4KB.  Keep this in mind
2295	  when choosing a value for this option.
2296
2297config BOARD_SCACHE
2298	bool
2299
2300config IP22_CPU_SCACHE
2301	bool
2302	select BOARD_SCACHE
2303
2304#
2305# Support for a MIPS32 / MIPS64 style S-caches
2306#
2307config MIPS_CPU_SCACHE
2308	bool
2309	select BOARD_SCACHE
2310
2311config R5000_CPU_SCACHE
2312	bool
2313	select BOARD_SCACHE
2314
2315config RM7000_CPU_SCACHE
2316	bool
2317	select BOARD_SCACHE
2318
2319config SIBYTE_DMA_PAGEOPS
2320	bool "Use DMA to clear/copy pages"
2321	depends on CPU_SB1
2322	help
2323	  Instead of using the CPU to zero and copy pages, use a Data Mover
2324	  channel.  These DMA channels are otherwise unused by the standard
2325	  SiByte Linux port.  Seems to give a small performance benefit.
2326
2327config CPU_HAS_PREFETCH
2328	bool
2329
2330config CPU_GENERIC_DUMP_TLB
2331	bool
2332	default y if !(CPU_R3000 || CPU_TX39XX)
2333
2334config MIPS_FP_SUPPORT
2335	bool "Floating Point support" if EXPERT
2336	default y
2337	help
2338	  Select y to include support for floating point in the kernel
2339	  including initialization of FPU hardware, FP context save & restore
2340	  and emulation of an FPU where necessary. Without this support any
2341	  userland program attempting to use floating point instructions will
2342	  receive a SIGILL.
2343
2344	  If you know that your userland will not attempt to use floating point
2345	  instructions then you can say n here to shrink the kernel a little.
2346
2347	  If unsure, say y.
2348
2349config CPU_R2300_FPU
2350	bool
2351	depends on MIPS_FP_SUPPORT
2352	default y if CPU_R3000 || CPU_TX39XX
2353
2354config CPU_R3K_TLB
2355	bool
2356
2357config CPU_R4K_FPU
2358	bool
2359	depends on MIPS_FP_SUPPORT
2360	default y if !CPU_R2300_FPU
2361
2362config CPU_R4K_CACHE_TLB
2363	bool
2364	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2365
2366config MIPS_MT_SMP
2367	bool "MIPS MT SMP support (1 TC on each available VPE)"
2368	default y
2369	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2370	select CPU_MIPSR2_IRQ_VI
2371	select CPU_MIPSR2_IRQ_EI
2372	select SYNC_R4K
2373	select MIPS_MT
2374	select SMP
2375	select SMP_UP
2376	select SYS_SUPPORTS_SMP
2377	select SYS_SUPPORTS_SCHED_SMT
2378	select MIPS_PERF_SHARED_TC_COUNTERS
2379	help
2380	  This is a kernel model which is known as SMVP. This is supported
2381	  on cores with the MT ASE and uses the available VPEs to implement
2382	  virtual processors which supports SMP. This is equivalent to the
2383	  Intel Hyperthreading feature. For further information go to
2384	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2385
2386config MIPS_MT
2387	bool
2388
2389config SCHED_SMT
2390	bool "SMT (multithreading) scheduler support"
2391	depends on SYS_SUPPORTS_SCHED_SMT
2392	default n
2393	help
2394	  SMT scheduler support improves the CPU scheduler's decision making
2395	  when dealing with MIPS MT enabled cores at a cost of slightly
2396	  increased overhead in some places. If unsure say N here.
2397
2398config SYS_SUPPORTS_SCHED_SMT
2399	bool
2400
2401config SYS_SUPPORTS_MULTITHREADING
2402	bool
2403
2404config MIPS_MT_FPAFF
2405	bool "Dynamic FPU affinity for FP-intensive threads"
2406	default y
2407	depends on MIPS_MT_SMP
2408
2409config MIPSR2_TO_R6_EMULATOR
2410	bool "MIPS R2-to-R6 emulator"
2411	depends on CPU_MIPSR6
2412	depends on MIPS_FP_SUPPORT
2413	default y
2414	help
2415	  Choose this option if you want to run non-R6 MIPS userland code.
2416	  Even if you say 'Y' here, the emulator will still be disabled by
2417	  default. You can enable it using the 'mipsr2emu' kernel option.
2418	  The only reason this is a build-time option is to save ~14K from the
2419	  final kernel image.
2420
2421config SYS_SUPPORTS_VPE_LOADER
2422	bool
2423	depends on SYS_SUPPORTS_MULTITHREADING
2424	help
2425	  Indicates that the platform supports the VPE loader, and provides
2426	  physical_memsize.
2427
2428config MIPS_VPE_LOADER
2429	bool "VPE loader support."
2430	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2431	select CPU_MIPSR2_IRQ_VI
2432	select CPU_MIPSR2_IRQ_EI
2433	select MIPS_MT
2434	help
2435	  Includes a loader for loading an elf relocatable object
2436	  onto another VPE and running it.
2437
2438config MIPS_VPE_LOADER_CMP
2439	bool
2440	default "y"
2441	depends on MIPS_VPE_LOADER && MIPS_CMP
2442
2443config MIPS_VPE_LOADER_MT
2444	bool
2445	default "y"
2446	depends on MIPS_VPE_LOADER && !MIPS_CMP
2447
2448config MIPS_VPE_LOADER_TOM
2449	bool "Load VPE program into memory hidden from linux"
2450	depends on MIPS_VPE_LOADER
2451	default y
2452	help
2453	  The loader can use memory that is present but has been hidden from
2454	  Linux using the kernel command line option "mem=xxMB". It's up to
2455	  you to ensure the amount you put in the option and the space your
2456	  program requires is less or equal to the amount physically present.
2457
2458config MIPS_VPE_APSP_API
2459	bool "Enable support for AP/SP API (RTLX)"
2460	depends on MIPS_VPE_LOADER
2461
2462config MIPS_VPE_APSP_API_CMP
2463	bool
2464	default "y"
2465	depends on MIPS_VPE_APSP_API && MIPS_CMP
2466
2467config MIPS_VPE_APSP_API_MT
2468	bool
2469	default "y"
2470	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2471
2472config MIPS_CMP
2473	bool "MIPS CMP framework support (DEPRECATED)"
2474	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2475	select SMP
2476	select SYNC_R4K
2477	select SYS_SUPPORTS_SMP
2478	select WEAK_ORDERING
2479	default n
2480	help
2481	  Select this if you are using a bootloader which implements the "CMP
2482	  framework" protocol (ie. YAMON) and want your kernel to make use of
2483	  its ability to start secondary CPUs.
2484
2485	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2486	  instead of this.
2487
2488config MIPS_CPS
2489	bool "MIPS Coherent Processing System support"
2490	depends on SYS_SUPPORTS_MIPS_CPS
2491	select MIPS_CM
2492	select MIPS_CPS_PM if HOTPLUG_CPU
2493	select SMP
2494	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2495	select SYS_SUPPORTS_HOTPLUG_CPU
2496	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2497	select SYS_SUPPORTS_SMP
2498	select WEAK_ORDERING
2499	help
2500	  Select this if you wish to run an SMP kernel across multiple cores
2501	  within a MIPS Coherent Processing System. When this option is
2502	  enabled the kernel will probe for other cores and boot them with
2503	  no external assistance. It is safe to enable this when hardware
2504	  support is unavailable.
2505
2506config MIPS_CPS_PM
2507	depends on MIPS_CPS
2508	bool
2509
2510config MIPS_CM
2511	bool
2512	select MIPS_CPC
2513
2514config MIPS_CPC
2515	bool
2516
2517config SB1_PASS_2_WORKAROUNDS
2518	bool
2519	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2520	default y
2521
2522config SB1_PASS_2_1_WORKAROUNDS
2523	bool
2524	depends on CPU_SB1 && CPU_SB1_PASS_2
2525	default y
2526
2527choice
2528	prompt "SmartMIPS or microMIPS ASE support"
2529
2530config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2531	bool "None"
2532	help
2533	  Select this if you want neither microMIPS nor SmartMIPS support
2534
2535config CPU_HAS_SMARTMIPS
2536	depends on SYS_SUPPORTS_SMARTMIPS
2537	bool "SmartMIPS"
2538	help
2539	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2540	  increased security at both hardware and software level for
2541	  smartcards.  Enabling this option will allow proper use of the
2542	  SmartMIPS instructions by Linux applications.  However a kernel with
2543	  this option will not work on a MIPS core without SmartMIPS core.  If
2544	  you don't know you probably don't have SmartMIPS and should say N
2545	  here.
2546
2547config CPU_MICROMIPS
2548	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2549	bool "microMIPS"
2550	help
2551	  When this option is enabled the kernel will be built using the
2552	  microMIPS ISA
2553
2554endchoice
2555
2556config CPU_HAS_MSA
2557	bool "Support for the MIPS SIMD Architecture"
2558	depends on CPU_SUPPORTS_MSA
2559	depends on MIPS_FP_SUPPORT
2560	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2561	help
2562	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2563	  and a set of SIMD instructions to operate on them. When this option
2564	  is enabled the kernel will support allocating & switching MSA
2565	  vector register contexts. If you know that your kernel will only be
2566	  running on CPUs which do not support MSA or that your userland will
2567	  not be making use of it then you may wish to say N here to reduce
2568	  the size & complexity of your kernel.
2569
2570	  If unsure, say Y.
2571
2572config CPU_HAS_WB
2573	bool
2574
2575config XKS01
2576	bool
2577
2578config CPU_HAS_RIXI
2579	bool
2580
2581config CPU_HAS_LOAD_STORE_LR
2582	bool
2583	help
2584	  CPU has support for unaligned load and store instructions:
2585	  LWL, LWR, SWL, SWR (Load/store word left/right).
2586	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2587
2588#
2589# Vectored interrupt mode is an R2 feature
2590#
2591config CPU_MIPSR2_IRQ_VI
2592	bool
2593
2594#
2595# Extended interrupt mode is an R2 feature
2596#
2597config CPU_MIPSR2_IRQ_EI
2598	bool
2599
2600config CPU_HAS_SYNC
2601	bool
2602	depends on !CPU_R3000
2603	default y
2604
2605#
2606# CPU non-features
2607#
2608config CPU_DADDI_WORKAROUNDS
2609	bool
2610
2611config CPU_R4000_WORKAROUNDS
2612	bool
2613	select CPU_R4400_WORKAROUNDS
2614
2615config CPU_R4400_WORKAROUNDS
2616	bool
2617
2618config CPU_R4X00_BUGS64
2619	bool
2620	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2621
2622config MIPS_ASID_SHIFT
2623	int
2624	default 6 if CPU_R3000 || CPU_TX39XX
2625	default 0
2626
2627config MIPS_ASID_BITS
2628	int
2629	default 0 if MIPS_ASID_BITS_VARIABLE
2630	default 6 if CPU_R3000 || CPU_TX39XX
2631	default 8
2632
2633config MIPS_ASID_BITS_VARIABLE
2634	bool
2635
2636config MIPS_CRC_SUPPORT
2637	bool
2638
2639#
2640# - Highmem only makes sense for the 32-bit kernel.
2641# - The current highmem code will only work properly on physically indexed
2642#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2643#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2644#   moment we protect the user and offer the highmem option only on machines
2645#   where it's known to be safe.  This will not offer highmem on a few systems
2646#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2647#   indexed CPUs but we're playing safe.
2648# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2649#   know they might have memory configurations that could make use of highmem
2650#   support.
2651#
2652config HIGHMEM
2653	bool "High Memory Support"
2654	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2655
2656config CPU_SUPPORTS_HIGHMEM
2657	bool
2658
2659config SYS_SUPPORTS_HIGHMEM
2660	bool
2661
2662config SYS_SUPPORTS_SMARTMIPS
2663	bool
2664
2665config SYS_SUPPORTS_MICROMIPS
2666	bool
2667
2668config SYS_SUPPORTS_MIPS16
2669	bool
2670	help
2671	  This option must be set if a kernel might be executed on a MIPS16-
2672	  enabled CPU even if MIPS16 is not actually being used.  In other
2673	  words, it makes the kernel MIPS16-tolerant.
2674
2675config CPU_SUPPORTS_MSA
2676	bool
2677
2678config ARCH_FLATMEM_ENABLE
2679	def_bool y
2680	depends on !NUMA && !CPU_LOONGSON2EF
2681
2682config ARCH_SPARSEMEM_ENABLE
2683	bool
2684	select SPARSEMEM_STATIC if !SGI_IP27
2685
2686config NUMA
2687	bool "NUMA Support"
2688	depends on SYS_SUPPORTS_NUMA
2689	help
2690	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2691	  Access).  This option improves performance on systems with more
2692	  than two nodes; on two node systems it is generally better to
2693	  leave it disabled; on single node systems disable this option
2694	  disabled.
2695
2696config SYS_SUPPORTS_NUMA
2697	bool
2698
2699config RELOCATABLE
2700	bool "Relocatable kernel"
2701	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2702	help
2703	  This builds a kernel image that retains relocation information
2704	  so it can be loaded someplace besides the default 1MB.
2705	  The relocations make the kernel binary about 15% larger,
2706	  but are discarded at runtime
2707
2708config RELOCATION_TABLE_SIZE
2709	hex "Relocation table size"
2710	depends on RELOCATABLE
2711	range 0x0 0x01000000
2712	default "0x00100000"
2713	---help---
2714	  A table of relocation data will be appended to the kernel binary
2715	  and parsed at boot to fix up the relocated kernel.
2716
2717	  This option allows the amount of space reserved for the table to be
2718	  adjusted, although the default of 1Mb should be ok in most cases.
2719
2720	  The build will fail and a valid size suggested if this is too small.
2721
2722	  If unsure, leave at the default value.
2723
2724config RANDOMIZE_BASE
2725	bool "Randomize the address of the kernel image"
2726	depends on RELOCATABLE
2727	---help---
2728	  Randomizes the physical and virtual address at which the
2729	  kernel image is loaded, as a security feature that
2730	  deters exploit attempts relying on knowledge of the location
2731	  of kernel internals.
2732
2733	  Entropy is generated using any coprocessor 0 registers available.
2734
2735	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2736
2737	  If unsure, say N.
2738
2739config RANDOMIZE_BASE_MAX_OFFSET
2740	hex "Maximum kASLR offset" if EXPERT
2741	depends on RANDOMIZE_BASE
2742	range 0x0 0x40000000 if EVA || 64BIT
2743	range 0x0 0x08000000
2744	default "0x01000000"
2745	---help---
2746	  When kASLR is active, this provides the maximum offset that will
2747	  be applied to the kernel image. It should be set according to the
2748	  amount of physical RAM available in the target system minus
2749	  PHYSICAL_START and must be a power of 2.
2750
2751	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2752	  EVA or 64-bit. The default is 16Mb.
2753
2754config NODES_SHIFT
2755	int
2756	default "6"
2757	depends on NEED_MULTIPLE_NODES
2758
2759config HW_PERF_EVENTS
2760	bool "Enable hardware performance counter support for perf events"
2761	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2762	default y
2763	help
2764	  Enable hardware performance counter support for perf events. If
2765	  disabled, perf events will use software events only.
2766
2767config SMP
2768	bool "Multi-Processing support"
2769	depends on SYS_SUPPORTS_SMP
2770	help
2771	  This enables support for systems with more than one CPU. If you have
2772	  a system with only one CPU, say N. If you have a system with more
2773	  than one CPU, say Y.
2774
2775	  If you say N here, the kernel will run on uni- and multiprocessor
2776	  machines, but will use only one CPU of a multiprocessor machine. If
2777	  you say Y here, the kernel will run on many, but not all,
2778	  uniprocessor machines. On a uniprocessor machine, the kernel
2779	  will run faster if you say N here.
2780
2781	  People using multiprocessor machines who say Y here should also say
2782	  Y to "Enhanced Real Time Clock Support", below.
2783
2784	  See also the SMP-HOWTO available at
2785	  <http://www.tldp.org/docs.html#howto>.
2786
2787	  If you don't know what to do here, say N.
2788
2789config HOTPLUG_CPU
2790	bool "Support for hot-pluggable CPUs"
2791	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2792	help
2793	  Say Y here to allow turning CPUs off and on. CPUs can be
2794	  controlled through /sys/devices/system/cpu.
2795	  (Note: power management support will enable this option
2796	    automatically on SMP systems. )
2797	  Say N if you want to disable CPU hotplug.
2798
2799config SMP_UP
2800	bool
2801
2802config SYS_SUPPORTS_MIPS_CMP
2803	bool
2804
2805config SYS_SUPPORTS_MIPS_CPS
2806	bool
2807
2808config SYS_SUPPORTS_SMP
2809	bool
2810
2811config NR_CPUS_DEFAULT_4
2812	bool
2813
2814config NR_CPUS_DEFAULT_8
2815	bool
2816
2817config NR_CPUS_DEFAULT_16
2818	bool
2819
2820config NR_CPUS_DEFAULT_32
2821	bool
2822
2823config NR_CPUS_DEFAULT_64
2824	bool
2825
2826config NR_CPUS
2827	int "Maximum number of CPUs (2-256)"
2828	range 2 256
2829	depends on SMP
2830	default "4" if NR_CPUS_DEFAULT_4
2831	default "8" if NR_CPUS_DEFAULT_8
2832	default "16" if NR_CPUS_DEFAULT_16
2833	default "32" if NR_CPUS_DEFAULT_32
2834	default "64" if NR_CPUS_DEFAULT_64
2835	help
2836	  This allows you to specify the maximum number of CPUs which this
2837	  kernel will support.  The maximum supported value is 32 for 32-bit
2838	  kernel and 64 for 64-bit kernels; the minimum value which makes
2839	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2840	  and 2 for all others.
2841
2842	  This is purely to save memory - each supported CPU adds
2843	  approximately eight kilobytes to the kernel image.  For best
2844	  performance should round up your number of processors to the next
2845	  power of two.
2846
2847config MIPS_PERF_SHARED_TC_COUNTERS
2848	bool
2849
2850config MIPS_NR_CPU_NR_MAP_1024
2851	bool
2852
2853config MIPS_NR_CPU_NR_MAP
2854	int
2855	depends on SMP
2856	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2857	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2858
2859#
2860# Timer Interrupt Frequency Configuration
2861#
2862
2863choice
2864	prompt "Timer frequency"
2865	default HZ_250
2866	help
2867	  Allows the configuration of the timer frequency.
2868
2869	config HZ_24
2870		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2871
2872	config HZ_48
2873		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2874
2875	config HZ_100
2876		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2877
2878	config HZ_128
2879		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2880
2881	config HZ_250
2882		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2883
2884	config HZ_256
2885		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2886
2887	config HZ_1000
2888		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2889
2890	config HZ_1024
2891		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2892
2893endchoice
2894
2895config SYS_SUPPORTS_24HZ
2896	bool
2897
2898config SYS_SUPPORTS_48HZ
2899	bool
2900
2901config SYS_SUPPORTS_100HZ
2902	bool
2903
2904config SYS_SUPPORTS_128HZ
2905	bool
2906
2907config SYS_SUPPORTS_250HZ
2908	bool
2909
2910config SYS_SUPPORTS_256HZ
2911	bool
2912
2913config SYS_SUPPORTS_1000HZ
2914	bool
2915
2916config SYS_SUPPORTS_1024HZ
2917	bool
2918
2919config SYS_SUPPORTS_ARBIT_HZ
2920	bool
2921	default y if !SYS_SUPPORTS_24HZ && \
2922		     !SYS_SUPPORTS_48HZ && \
2923		     !SYS_SUPPORTS_100HZ && \
2924		     !SYS_SUPPORTS_128HZ && \
2925		     !SYS_SUPPORTS_250HZ && \
2926		     !SYS_SUPPORTS_256HZ && \
2927		     !SYS_SUPPORTS_1000HZ && \
2928		     !SYS_SUPPORTS_1024HZ
2929
2930config HZ
2931	int
2932	default 24 if HZ_24
2933	default 48 if HZ_48
2934	default 100 if HZ_100
2935	default 128 if HZ_128
2936	default 250 if HZ_250
2937	default 256 if HZ_256
2938	default 1000 if HZ_1000
2939	default 1024 if HZ_1024
2940
2941config SCHED_HRTICK
2942	def_bool HIGH_RES_TIMERS
2943
2944config KEXEC
2945	bool "Kexec system call"
2946	select KEXEC_CORE
2947	help
2948	  kexec is a system call that implements the ability to shutdown your
2949	  current kernel, and to start another kernel.  It is like a reboot
2950	  but it is independent of the system firmware.   And like a reboot
2951	  you can start any kernel with it, not just Linux.
2952
2953	  The name comes from the similarity to the exec system call.
2954
2955	  It is an ongoing process to be certain the hardware in a machine
2956	  is properly shutdown, so do not be surprised if this code does not
2957	  initially work for you.  As of this writing the exact hardware
2958	  interface is strongly in flux, so no good recommendation can be
2959	  made.
2960
2961config CRASH_DUMP
2962	bool "Kernel crash dumps"
2963	help
2964	  Generate crash dump after being started by kexec.
2965	  This should be normally only set in special crash dump kernels
2966	  which are loaded in the main kernel with kexec-tools into
2967	  a specially reserved region and then later executed after
2968	  a crash by kdump/kexec. The crash dump kernel must be compiled
2969	  to a memory address not used by the main kernel or firmware using
2970	  PHYSICAL_START.
2971
2972config PHYSICAL_START
2973	hex "Physical address where the kernel is loaded"
2974	default "0xffffffff84000000"
2975	depends on CRASH_DUMP
2976	help
2977	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2978	  If you plan to use kernel for capturing the crash dump change
2979	  this value to start of the reserved region (the "X" value as
2980	  specified in the "crashkernel=YM@XM" command line boot parameter
2981	  passed to the panic-ed kernel).
2982
2983config SECCOMP
2984	bool "Enable seccomp to safely compute untrusted bytecode"
2985	depends on PROC_FS
2986	default y
2987	help
2988	  This kernel feature is useful for number crunching applications
2989	  that may need to compute untrusted bytecode during their
2990	  execution. By using pipes or other transports made available to
2991	  the process as file descriptors supporting the read/write
2992	  syscalls, it's possible to isolate those applications in
2993	  their own address space using seccomp. Once seccomp is
2994	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2995	  and the task is only allowed to execute a few safe syscalls
2996	  defined by each seccomp mode.
2997
2998	  If unsure, say Y. Only embedded should say N here.
2999
3000config MIPS_O32_FP64_SUPPORT
3001	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3002	depends on 32BIT || MIPS32_O32
3003	help
3004	  When this is enabled, the kernel will support use of 64-bit floating
3005	  point registers with binaries using the O32 ABI along with the
3006	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3007	  32-bit MIPS systems this support is at the cost of increasing the
3008	  size and complexity of the compiled FPU emulator. Thus if you are
3009	  running a MIPS32 system and know that none of your userland binaries
3010	  will require 64-bit floating point, you may wish to reduce the size
3011	  of your kernel & potentially improve FP emulation performance by
3012	  saying N here.
3013
3014	  Although binutils currently supports use of this flag the details
3015	  concerning its effect upon the O32 ABI in userland are still being
3016	  worked on. In order to avoid userland becoming dependant upon current
3017	  behaviour before the details have been finalised, this option should
3018	  be considered experimental and only enabled by those working upon
3019	  said details.
3020
3021	  If unsure, say N.
3022
3023config USE_OF
3024	bool
3025	select OF
3026	select OF_EARLY_FLATTREE
3027	select IRQ_DOMAIN
3028
3029config UHI_BOOT
3030	bool
3031
3032config BUILTIN_DTB
3033	bool
3034
3035choice
3036	prompt "Kernel appended dtb support" if USE_OF
3037	default MIPS_NO_APPENDED_DTB
3038
3039	config MIPS_NO_APPENDED_DTB
3040		bool "None"
3041		help
3042		  Do not enable appended dtb support.
3043
3044	config MIPS_ELF_APPENDED_DTB
3045		bool "vmlinux"
3046		help
3047		  With this option, the boot code will look for a device tree binary
3048		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3049		  it is empty and the DTB can be appended using binutils command
3050		  objcopy:
3051
3052		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3053
3054		  This is meant as a backward compatiblity convenience for those
3055		  systems with a bootloader that can't be upgraded to accommodate
3056		  the documented boot protocol using a device tree.
3057
3058	config MIPS_RAW_APPENDED_DTB
3059		bool "vmlinux.bin or vmlinuz.bin"
3060		help
3061		  With this option, the boot code will look for a device tree binary
3062		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3063		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3064
3065		  This is meant as a backward compatibility convenience for those
3066		  systems with a bootloader that can't be upgraded to accommodate
3067		  the documented boot protocol using a device tree.
3068
3069		  Beware that there is very little in terms of protection against
3070		  this option being confused by leftover garbage in memory that might
3071		  look like a DTB header after a reboot if no actual DTB is appended
3072		  to vmlinux.bin.  Do not leave this option active in a production kernel
3073		  if you don't intend to always append a DTB.
3074endchoice
3075
3076choice
3077	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3078	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3079					 !MIPS_MALTA && \
3080					 !CAVIUM_OCTEON_SOC
3081	default MIPS_CMDLINE_FROM_BOOTLOADER
3082
3083	config MIPS_CMDLINE_FROM_DTB
3084		depends on USE_OF
3085		bool "Dtb kernel arguments if available"
3086
3087	config MIPS_CMDLINE_DTB_EXTEND
3088		depends on USE_OF
3089		bool "Extend dtb kernel arguments with bootloader arguments"
3090
3091	config MIPS_CMDLINE_FROM_BOOTLOADER
3092		bool "Bootloader kernel arguments if available"
3093
3094	config MIPS_CMDLINE_BUILTIN_EXTEND
3095		depends on CMDLINE_BOOL
3096		bool "Extend builtin kernel arguments with bootloader arguments"
3097endchoice
3098
3099endmenu
3100
3101config LOCKDEP_SUPPORT
3102	bool
3103	default y
3104
3105config STACKTRACE_SUPPORT
3106	bool
3107	default y
3108
3109config PGTABLE_LEVELS
3110	int
3111	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3112	default 3 if 64BIT && !PAGE_SIZE_64KB
3113	default 2
3114
3115config MIPS_AUTO_PFN_OFFSET
3116	bool
3117
3118menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3119
3120config PCI_DRIVERS_GENERIC
3121	select PCI_DOMAINS_GENERIC if PCI
3122	bool
3123
3124config PCI_DRIVERS_LEGACY
3125	def_bool !PCI_DRIVERS_GENERIC
3126	select NO_GENERIC_PCI_IOPORT_MAP
3127	select PCI_DOMAINS if PCI
3128
3129#
3130# ISA support is now enabled via select.  Too many systems still have the one
3131# or other ISA chip on the board that users don't know about so don't expect
3132# users to choose the right thing ...
3133#
3134config ISA
3135	bool
3136
3137config TC
3138	bool "TURBOchannel support"
3139	depends on MACH_DECSTATION
3140	help
3141	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3142	  processors.  TURBOchannel programming specifications are available
3143	  at:
3144	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3145	  and:
3146	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3147	  Linux driver support status is documented at:
3148	  <http://www.linux-mips.org/wiki/DECstation>
3149
3150config MMU
3151	bool
3152	default y
3153
3154config ARCH_MMAP_RND_BITS_MIN
3155	default 12 if 64BIT
3156	default 8
3157
3158config ARCH_MMAP_RND_BITS_MAX
3159	default 18 if 64BIT
3160	default 15
3161
3162config ARCH_MMAP_RND_COMPAT_BITS_MIN
3163	default 8
3164
3165config ARCH_MMAP_RND_COMPAT_BITS_MAX
3166	default 15
3167
3168config I8253
3169	bool
3170	select CLKSRC_I8253
3171	select CLKEVT_I8253
3172	select MIPS_EXTERNAL_TIMER
3173
3174config ZONE_DMA
3175	bool
3176
3177config ZONE_DMA32
3178	bool
3179
3180endmenu
3181
3182config TRAD_SIGNALS
3183	bool
3184
3185config MIPS32_COMPAT
3186	bool
3187
3188config COMPAT
3189	bool
3190
3191config SYSVIPC_COMPAT
3192	bool
3193
3194config MIPS32_O32
3195	bool "Kernel support for o32 binaries"
3196	depends on 64BIT
3197	select ARCH_WANT_OLD_COMPAT_IPC
3198	select COMPAT
3199	select MIPS32_COMPAT
3200	select SYSVIPC_COMPAT if SYSVIPC
3201	help
3202	  Select this option if you want to run o32 binaries.  These are pure
3203	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3204	  existing binaries are in this format.
3205
3206	  If unsure, say Y.
3207
3208config MIPS32_N32
3209	bool "Kernel support for n32 binaries"
3210	depends on 64BIT
3211	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3212	select COMPAT
3213	select MIPS32_COMPAT
3214	select SYSVIPC_COMPAT if SYSVIPC
3215	help
3216	  Select this option if you want to run n32 binaries.  These are
3217	  64-bit binaries using 32-bit quantities for addressing and certain
3218	  data that would normally be 64-bit.  They are used in special
3219	  cases.
3220
3221	  If unsure, say N.
3222
3223config BINFMT_ELF32
3224	bool
3225	default y if MIPS32_O32 || MIPS32_N32
3226	select ELFCORE
3227
3228menu "Power management options"
3229
3230config ARCH_HIBERNATION_POSSIBLE
3231	def_bool y
3232	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3233
3234config ARCH_SUSPEND_POSSIBLE
3235	def_bool y
3236	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3237
3238source "kernel/power/Kconfig"
3239
3240endmenu
3241
3242config MIPS_EXTERNAL_TIMER
3243	bool
3244
3245menu "CPU Power Management"
3246
3247if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3248source "drivers/cpufreq/Kconfig"
3249endif
3250
3251source "drivers/cpuidle/Kconfig"
3252
3253endmenu
3254
3255source "drivers/firmware/Kconfig"
3256
3257source "arch/mips/kvm/Kconfig"
3258