xref: /linux/arch/mips/Kconfig (revision 79b6bb73f888933cbcd20b0ef3976cde67951b72)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_32BIT_OFF_T if !64BIT
6	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7	select ARCH_CLOCKSOURCE_DATA
8	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
9	select ARCH_HAS_UBSAN_SANITIZE_ALL
10	select ARCH_HAS_FORTIFY_SOURCE
11	select ARCH_SUPPORTS_UPROBES
12	select ARCH_USE_BUILTIN_BSWAP
13	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
14	select ARCH_USE_QUEUED_RWLOCKS
15	select ARCH_USE_QUEUED_SPINLOCKS
16	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
17	select ARCH_WANT_IPC_PARSE_VERSION
18	select BUILDTIME_EXTABLE_SORT
19	select CLONE_BACKWARDS
20	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
21	select CPU_PM if CPU_IDLE
22	select GENERIC_ATOMIC64 if !64BIT
23	select GENERIC_CLOCKEVENTS
24	select GENERIC_CMOS_UPDATE
25	select GENERIC_CPU_AUTOPROBE
26	select GENERIC_GETTIMEOFDAY
27	select GENERIC_IOMAP
28	select GENERIC_IRQ_PROBE
29	select GENERIC_IRQ_SHOW
30	select GENERIC_ISA_DMA if EISA
31	select GENERIC_LIB_ASHLDI3
32	select GENERIC_LIB_ASHRDI3
33	select GENERIC_LIB_CMPDI2
34	select GENERIC_LIB_LSHRDI3
35	select GENERIC_LIB_UCMPDI2
36	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
37	select GENERIC_SMP_IDLE_THREAD
38	select GENERIC_TIME_VSYSCALL
39	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
40	select HANDLE_DOMAIN_IRQ
41	select HAVE_ARCH_COMPILER_H
42	select HAVE_ARCH_JUMP_LABEL
43	select HAVE_ARCH_KGDB
44	select HAVE_ARCH_MMAP_RND_BITS if MMU
45	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
46	select HAVE_ARCH_SECCOMP_FILTER
47	select HAVE_ARCH_TRACEHOOK
48	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
49	select HAVE_ASM_MODVERSIONS
50	select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
51	select HAVE_CONTEXT_TRACKING
52	select HAVE_COPY_THREAD_TLS
53	select HAVE_C_RECORDMCOUNT
54	select HAVE_DEBUG_KMEMLEAK
55	select HAVE_DEBUG_STACKOVERFLOW
56	select HAVE_DMA_CONTIGUOUS
57	select HAVE_DYNAMIC_FTRACE
58	select HAVE_EXIT_THREAD
59	select HAVE_FAST_GUP
60	select HAVE_FTRACE_MCOUNT_RECORD
61	select HAVE_FUNCTION_GRAPH_TRACER
62	select HAVE_FUNCTION_TRACER
63	select HAVE_IDE
64	select HAVE_IOREMAP_PROT
65	select HAVE_IRQ_EXIT_ON_IRQ_STACK
66	select HAVE_IRQ_TIME_ACCOUNTING
67	select HAVE_KPROBES
68	select HAVE_KRETPROBES
69	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
70	select HAVE_MEMBLOCK_NODE_MAP
71	select HAVE_MOD_ARCH_SPECIFIC
72	select HAVE_NMI
73	select HAVE_OPROFILE
74	select HAVE_PERF_EVENTS
75	select HAVE_REGS_AND_STACK_ACCESS_API
76	select HAVE_RSEQ
77	select HAVE_STACKPROTECTOR
78	select HAVE_SYSCALL_TRACEPOINTS
79	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
80	select HAVE_GENERIC_VDSO
81	select IRQ_FORCED_THREADING
82	select ISA if EISA
83	select MODULES_USE_ELF_RELA if MODULES && 64BIT
84	select MODULES_USE_ELF_REL if MODULES
85	select PERF_USE_VMALLOC
86	select RTC_LIB
87	select SYSCTL_EXCEPTION_TRACE
88	select VIRT_TO_BUS
89	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
90	select ARCH_HAS_KCOV
91	select HAVE_GCC_PLUGINS
92
93menu "Machine selection"
94
95choice
96	prompt "System type"
97	default MIPS_GENERIC
98
99config MIPS_GENERIC
100	bool "Generic board-agnostic MIPS kernel"
101	select BOOT_RAW
102	select BUILTIN_DTB
103	select CEVT_R4K
104	select CLKSRC_MIPS_GIC
105	select COMMON_CLK
106	select CPU_MIPSR2_IRQ_VI
107	select CPU_MIPSR2_IRQ_EI
108	select CSRC_R4K
109	select DMA_PERDEV_COHERENT
110	select HAVE_PCI
111	select IRQ_MIPS_CPU
112	select LIBFDT
113	select MIPS_AUTO_PFN_OFFSET
114	select MIPS_CPU_SCACHE
115	select MIPS_GIC
116	select MIPS_L1_CACHE_SHIFT_7
117	select NO_EXCEPT_FILL
118	select PCI_DRIVERS_GENERIC
119	select PINCTRL
120	select SMP_UP if SMP
121	select SWAP_IO_SPACE
122	select SYS_HAS_CPU_MIPS32_R1
123	select SYS_HAS_CPU_MIPS32_R2
124	select SYS_HAS_CPU_MIPS32_R6
125	select SYS_HAS_CPU_MIPS64_R1
126	select SYS_HAS_CPU_MIPS64_R2
127	select SYS_HAS_CPU_MIPS64_R6
128	select SYS_SUPPORTS_32BIT_KERNEL
129	select SYS_SUPPORTS_64BIT_KERNEL
130	select SYS_SUPPORTS_BIG_ENDIAN
131	select SYS_SUPPORTS_HIGHMEM
132	select SYS_SUPPORTS_LITTLE_ENDIAN
133	select SYS_SUPPORTS_MICROMIPS
134	select SYS_SUPPORTS_MIPS_CPS
135	select SYS_SUPPORTS_MIPS16
136	select SYS_SUPPORTS_MULTITHREADING
137	select SYS_SUPPORTS_RELOCATABLE
138	select SYS_SUPPORTS_SMARTMIPS
139	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
140	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
141	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
142	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
143	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
144	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
145	select USE_OF
146	select UHI_BOOT
147	help
148	  Select this to build a kernel which aims to support multiple boards,
149	  generally using a flattened device tree passed from the bootloader
150	  using the boot protocol defined in the UHI (Unified Hosting
151	  Interface) specification.
152
153config MIPS_ALCHEMY
154	bool "Alchemy processor based machines"
155	select PHYS_ADDR_T_64BIT
156	select CEVT_R4K
157	select CSRC_R4K
158	select IRQ_MIPS_CPU
159	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
160	select SYS_HAS_CPU_MIPS32_R1
161	select SYS_SUPPORTS_32BIT_KERNEL
162	select SYS_SUPPORTS_APM_EMULATION
163	select GPIOLIB
164	select SYS_SUPPORTS_ZBOOT
165	select COMMON_CLK
166
167config AR7
168	bool "Texas Instruments AR7"
169	select BOOT_ELF32
170	select DMA_NONCOHERENT
171	select CEVT_R4K
172	select CSRC_R4K
173	select IRQ_MIPS_CPU
174	select NO_EXCEPT_FILL
175	select SWAP_IO_SPACE
176	select SYS_HAS_CPU_MIPS32_R1
177	select SYS_HAS_EARLY_PRINTK
178	select SYS_SUPPORTS_32BIT_KERNEL
179	select SYS_SUPPORTS_LITTLE_ENDIAN
180	select SYS_SUPPORTS_MIPS16
181	select SYS_SUPPORTS_ZBOOT_UART16550
182	select GPIOLIB
183	select VLYNQ
184	select HAVE_CLK
185	help
186	  Support for the Texas Instruments AR7 System-on-a-Chip
187	  family: TNETD7100, 7200 and 7300.
188
189config ATH25
190	bool "Atheros AR231x/AR531x SoC support"
191	select CEVT_R4K
192	select CSRC_R4K
193	select DMA_NONCOHERENT
194	select IRQ_MIPS_CPU
195	select IRQ_DOMAIN
196	select SYS_HAS_CPU_MIPS32_R1
197	select SYS_SUPPORTS_BIG_ENDIAN
198	select SYS_SUPPORTS_32BIT_KERNEL
199	select SYS_HAS_EARLY_PRINTK
200	help
201	  Support for Atheros AR231x and Atheros AR531x based boards
202
203config ATH79
204	bool "Atheros AR71XX/AR724X/AR913X based boards"
205	select ARCH_HAS_RESET_CONTROLLER
206	select BOOT_RAW
207	select CEVT_R4K
208	select CSRC_R4K
209	select DMA_NONCOHERENT
210	select GPIOLIB
211	select PINCTRL
212	select HAVE_CLK
213	select COMMON_CLK
214	select CLKDEV_LOOKUP
215	select IRQ_MIPS_CPU
216	select SYS_HAS_CPU_MIPS32_R2
217	select SYS_HAS_EARLY_PRINTK
218	select SYS_SUPPORTS_32BIT_KERNEL
219	select SYS_SUPPORTS_BIG_ENDIAN
220	select SYS_SUPPORTS_MIPS16
221	select SYS_SUPPORTS_ZBOOT_UART_PROM
222	select USE_OF
223	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
224	help
225	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
226
227config BMIPS_GENERIC
228	bool "Broadcom Generic BMIPS kernel"
229	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
230	select ARCH_HAS_PHYS_TO_DMA
231	select BOOT_RAW
232	select NO_EXCEPT_FILL
233	select USE_OF
234	select CEVT_R4K
235	select CSRC_R4K
236	select SYNC_R4K
237	select COMMON_CLK
238	select BCM6345_L1_IRQ
239	select BCM7038_L1_IRQ
240	select BCM7120_L2_IRQ
241	select BRCMSTB_L2_IRQ
242	select IRQ_MIPS_CPU
243	select DMA_NONCOHERENT
244	select SYS_SUPPORTS_32BIT_KERNEL
245	select SYS_SUPPORTS_LITTLE_ENDIAN
246	select SYS_SUPPORTS_BIG_ENDIAN
247	select SYS_SUPPORTS_HIGHMEM
248	select SYS_HAS_CPU_BMIPS32_3300
249	select SYS_HAS_CPU_BMIPS4350
250	select SYS_HAS_CPU_BMIPS4380
251	select SYS_HAS_CPU_BMIPS5000
252	select SWAP_IO_SPACE
253	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
254	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
255	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
256	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
257	select HARDIRQS_SW_RESEND
258	help
259	  Build a generic DT-based kernel image that boots on select
260	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
261	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
262	  must be set appropriately for your board.
263
264config BCM47XX
265	bool "Broadcom BCM47XX based boards"
266	select BOOT_RAW
267	select CEVT_R4K
268	select CSRC_R4K
269	select DMA_NONCOHERENT
270	select HAVE_PCI
271	select IRQ_MIPS_CPU
272	select SYS_HAS_CPU_MIPS32_R1
273	select NO_EXCEPT_FILL
274	select SYS_SUPPORTS_32BIT_KERNEL
275	select SYS_SUPPORTS_LITTLE_ENDIAN
276	select SYS_SUPPORTS_MIPS16
277	select SYS_SUPPORTS_ZBOOT
278	select SYS_HAS_EARLY_PRINTK
279	select USE_GENERIC_EARLY_PRINTK_8250
280	select GPIOLIB
281	select LEDS_GPIO_REGISTER
282	select BCM47XX_NVRAM
283	select BCM47XX_SPROM
284	select BCM47XX_SSB if !BCM47XX_BCMA
285	help
286	  Support for BCM47XX based boards
287
288config BCM63XX
289	bool "Broadcom BCM63XX based boards"
290	select BOOT_RAW
291	select CEVT_R4K
292	select CSRC_R4K
293	select SYNC_R4K
294	select DMA_NONCOHERENT
295	select IRQ_MIPS_CPU
296	select SYS_SUPPORTS_32BIT_KERNEL
297	select SYS_SUPPORTS_BIG_ENDIAN
298	select SYS_HAS_EARLY_PRINTK
299	select SWAP_IO_SPACE
300	select GPIOLIB
301	select HAVE_CLK
302	select MIPS_L1_CACHE_SHIFT_4
303	select CLKDEV_LOOKUP
304	help
305	  Support for BCM63XX based boards
306
307config MIPS_COBALT
308	bool "Cobalt Server"
309	select CEVT_R4K
310	select CSRC_R4K
311	select CEVT_GT641XX
312	select DMA_NONCOHERENT
313	select FORCE_PCI
314	select I8253
315	select I8259
316	select IRQ_MIPS_CPU
317	select IRQ_GT641XX
318	select PCI_GT64XXX_PCI0
319	select SYS_HAS_CPU_NEVADA
320	select SYS_HAS_EARLY_PRINTK
321	select SYS_SUPPORTS_32BIT_KERNEL
322	select SYS_SUPPORTS_64BIT_KERNEL
323	select SYS_SUPPORTS_LITTLE_ENDIAN
324	select USE_GENERIC_EARLY_PRINTK_8250
325
326config MACH_DECSTATION
327	bool "DECstations"
328	select BOOT_ELF32
329	select CEVT_DS1287
330	select CEVT_R4K if CPU_R4X00
331	select CSRC_IOASIC
332	select CSRC_R4K if CPU_R4X00
333	select CPU_DADDI_WORKAROUNDS if 64BIT
334	select CPU_R4000_WORKAROUNDS if 64BIT
335	select CPU_R4400_WORKAROUNDS if 64BIT
336	select DMA_NONCOHERENT
337	select NO_IOPORT_MAP
338	select IRQ_MIPS_CPU
339	select SYS_HAS_CPU_R3000
340	select SYS_HAS_CPU_R4X00
341	select SYS_SUPPORTS_32BIT_KERNEL
342	select SYS_SUPPORTS_64BIT_KERNEL
343	select SYS_SUPPORTS_LITTLE_ENDIAN
344	select SYS_SUPPORTS_128HZ
345	select SYS_SUPPORTS_256HZ
346	select SYS_SUPPORTS_1024HZ
347	select MIPS_L1_CACHE_SHIFT_4
348	help
349	  This enables support for DEC's MIPS based workstations.  For details
350	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
351	  DECstation porting pages on <http://decstation.unix-ag.org/>.
352
353	  If you have one of the following DECstation Models you definitely
354	  want to choose R4xx0 for the CPU Type:
355
356		DECstation 5000/50
357		DECstation 5000/150
358		DECstation 5000/260
359		DECsystem 5900/260
360
361	  otherwise choose R3000.
362
363config MACH_JAZZ
364	bool "Jazz family of machines"
365	select ARC_MEMORY
366	select ARC_PROMLIB
367	select ARCH_MIGHT_HAVE_PC_PARPORT
368	select ARCH_MIGHT_HAVE_PC_SERIO
369	select FW_ARC
370	select FW_ARC32
371	select ARCH_MAY_HAVE_PC_FDC
372	select CEVT_R4K
373	select CSRC_R4K
374	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
375	select GENERIC_ISA_DMA
376	select HAVE_PCSPKR_PLATFORM
377	select IRQ_MIPS_CPU
378	select I8253
379	select I8259
380	select ISA
381	select SYS_HAS_CPU_R4X00
382	select SYS_SUPPORTS_32BIT_KERNEL
383	select SYS_SUPPORTS_64BIT_KERNEL
384	select SYS_SUPPORTS_100HZ
385	help
386	  This a family of machines based on the MIPS R4030 chipset which was
387	  used by several vendors to build RISC/os and Windows NT workstations.
388	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
389	  Olivetti M700-10 workstations.
390
391config MACH_INGENIC
392	bool "Ingenic SoC based machines"
393	select SYS_SUPPORTS_32BIT_KERNEL
394	select SYS_SUPPORTS_LITTLE_ENDIAN
395	select SYS_SUPPORTS_ZBOOT_UART16550
396	select CPU_SUPPORTS_HUGEPAGES
397	select DMA_NONCOHERENT
398	select IRQ_MIPS_CPU
399	select PINCTRL
400	select GPIOLIB
401	select COMMON_CLK
402	select GENERIC_IRQ_CHIP
403	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
404	select USE_OF
405	select LIBFDT
406
407config LANTIQ
408	bool "Lantiq based platforms"
409	select DMA_NONCOHERENT
410	select IRQ_MIPS_CPU
411	select CEVT_R4K
412	select CSRC_R4K
413	select SYS_HAS_CPU_MIPS32_R1
414	select SYS_HAS_CPU_MIPS32_R2
415	select SYS_SUPPORTS_BIG_ENDIAN
416	select SYS_SUPPORTS_32BIT_KERNEL
417	select SYS_SUPPORTS_MIPS16
418	select SYS_SUPPORTS_MULTITHREADING
419	select SYS_SUPPORTS_VPE_LOADER
420	select SYS_HAS_EARLY_PRINTK
421	select GPIOLIB
422	select SWAP_IO_SPACE
423	select BOOT_RAW
424	select CLKDEV_LOOKUP
425	select USE_OF
426	select PINCTRL
427	select PINCTRL_LANTIQ
428	select ARCH_HAS_RESET_CONTROLLER
429	select RESET_CONTROLLER
430
431config LASAT
432	bool "LASAT Networks platforms"
433	select CEVT_R4K
434	select CRC32
435	select CSRC_R4K
436	select DMA_NONCOHERENT
437	select SYS_HAS_EARLY_PRINTK
438	select HAVE_PCI
439	select IRQ_MIPS_CPU
440	select PCI_GT64XXX_PCI0
441	select MIPS_NILE4
442	select R5000_CPU_SCACHE
443	select SYS_HAS_CPU_R5000
444	select SYS_SUPPORTS_32BIT_KERNEL
445	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
446	select SYS_SUPPORTS_LITTLE_ENDIAN
447
448config MACH_LOONGSON32
449	bool "Loongson 32-bit family of machines"
450	select SYS_SUPPORTS_ZBOOT
451	help
452	  This enables support for the Loongson-1 family of machines.
453
454	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
455	  the Institute of Computing Technology (ICT), Chinese Academy of
456	  Sciences (CAS).
457
458config MACH_LOONGSON2EF
459	bool "Loongson-2E/F family of machines"
460	select SYS_SUPPORTS_ZBOOT
461	help
462	  This enables the support of early Loongson-2E/F family of machines.
463
464config MACH_LOONGSON64
465	bool "Loongson 64-bit family of machines"
466	select ARCH_SPARSEMEM_ENABLE
467	select ARCH_MIGHT_HAVE_PC_PARPORT
468	select ARCH_MIGHT_HAVE_PC_SERIO
469	select GENERIC_ISA_DMA_SUPPORT_BROKEN
470	select BOOT_ELF32
471	select BOARD_SCACHE
472	select CSRC_R4K
473	select CEVT_R4K
474	select CPU_HAS_WB
475	select FORCE_PCI
476	select ISA
477	select I8259
478	select IRQ_MIPS_CPU
479	select NR_CPUS_DEFAULT_4
480	select USE_GENERIC_EARLY_PRINTK_8250
481	select SYS_HAS_CPU_LOONGSON64
482	select SYS_HAS_EARLY_PRINTK
483	select SYS_SUPPORTS_SMP
484	select SYS_SUPPORTS_HOTPLUG_CPU
485	select SYS_SUPPORTS_NUMA
486	select SYS_SUPPORTS_64BIT_KERNEL
487	select SYS_SUPPORTS_HIGHMEM
488	select SYS_SUPPORTS_LITTLE_ENDIAN
489	select SYS_SUPPORTS_ZBOOT
490	select LOONGSON_MC146818
491	select ZONE_DMA32
492	select NUMA
493	help
494	  This enables the support of Loongson-2/3 family of machines.
495
496	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
497	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
498	  and Loongson-2F which will be removed), developed by the Institute
499	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
500
501config MACH_PISTACHIO
502	bool "IMG Pistachio SoC based boards"
503	select BOOT_ELF32
504	select BOOT_RAW
505	select CEVT_R4K
506	select CLKSRC_MIPS_GIC
507	select COMMON_CLK
508	select CSRC_R4K
509	select DMA_NONCOHERENT
510	select GPIOLIB
511	select IRQ_MIPS_CPU
512	select LIBFDT
513	select MFD_SYSCON
514	select MIPS_CPU_SCACHE
515	select MIPS_GIC
516	select PINCTRL
517	select REGULATOR
518	select SYS_HAS_CPU_MIPS32_R2
519	select SYS_SUPPORTS_32BIT_KERNEL
520	select SYS_SUPPORTS_LITTLE_ENDIAN
521	select SYS_SUPPORTS_MIPS_CPS
522	select SYS_SUPPORTS_MULTITHREADING
523	select SYS_SUPPORTS_RELOCATABLE
524	select SYS_SUPPORTS_ZBOOT
525	select SYS_HAS_EARLY_PRINTK
526	select USE_GENERIC_EARLY_PRINTK_8250
527	select USE_OF
528	help
529	  This enables support for the IMG Pistachio SoC platform.
530
531config MIPS_MALTA
532	bool "MIPS Malta board"
533	select ARCH_MAY_HAVE_PC_FDC
534	select ARCH_MIGHT_HAVE_PC_PARPORT
535	select ARCH_MIGHT_HAVE_PC_SERIO
536	select BOOT_ELF32
537	select BOOT_RAW
538	select BUILTIN_DTB
539	select CEVT_R4K
540	select CLKSRC_MIPS_GIC
541	select COMMON_CLK
542	select CSRC_R4K
543	select DMA_MAYBE_COHERENT
544	select GENERIC_ISA_DMA
545	select HAVE_PCSPKR_PLATFORM
546	select HAVE_PCI
547	select I8253
548	select I8259
549	select IRQ_MIPS_CPU
550	select LIBFDT
551	select MIPS_BONITO64
552	select MIPS_CPU_SCACHE
553	select MIPS_GIC
554	select MIPS_L1_CACHE_SHIFT_6
555	select MIPS_MSC
556	select PCI_GT64XXX_PCI0
557	select SMP_UP if SMP
558	select SWAP_IO_SPACE
559	select SYS_HAS_CPU_MIPS32_R1
560	select SYS_HAS_CPU_MIPS32_R2
561	select SYS_HAS_CPU_MIPS32_R3_5
562	select SYS_HAS_CPU_MIPS32_R5
563	select SYS_HAS_CPU_MIPS32_R6
564	select SYS_HAS_CPU_MIPS64_R1
565	select SYS_HAS_CPU_MIPS64_R2
566	select SYS_HAS_CPU_MIPS64_R6
567	select SYS_HAS_CPU_NEVADA
568	select SYS_HAS_CPU_RM7000
569	select SYS_SUPPORTS_32BIT_KERNEL
570	select SYS_SUPPORTS_64BIT_KERNEL
571	select SYS_SUPPORTS_BIG_ENDIAN
572	select SYS_SUPPORTS_HIGHMEM
573	select SYS_SUPPORTS_LITTLE_ENDIAN
574	select SYS_SUPPORTS_MICROMIPS
575	select SYS_SUPPORTS_MIPS16
576	select SYS_SUPPORTS_MIPS_CMP
577	select SYS_SUPPORTS_MIPS_CPS
578	select SYS_SUPPORTS_MULTITHREADING
579	select SYS_SUPPORTS_RELOCATABLE
580	select SYS_SUPPORTS_SMARTMIPS
581	select SYS_SUPPORTS_VPE_LOADER
582	select SYS_SUPPORTS_ZBOOT
583	select USE_OF
584	select ZONE_DMA32 if 64BIT
585	help
586	  This enables support for the MIPS Technologies Malta evaluation
587	  board.
588
589config MACH_PIC32
590	bool "Microchip PIC32 Family"
591	help
592	  This enables support for the Microchip PIC32 family of platforms.
593
594	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
595	  microcontrollers.
596
597config NEC_MARKEINS
598	bool "NEC EMMA2RH Mark-eins board"
599	select SOC_EMMA2RH
600	select HAVE_PCI
601	help
602	  This enables support for the NEC Electronics Mark-eins boards.
603
604config MACH_VR41XX
605	bool "NEC VR4100 series based machines"
606	select CEVT_R4K
607	select CSRC_R4K
608	select SYS_HAS_CPU_VR41XX
609	select SYS_SUPPORTS_MIPS16
610	select GPIOLIB
611
612config NXP_STB220
613	bool "NXP STB220 board"
614	select SOC_PNX833X
615	help
616	  Support for NXP Semiconductors STB220 Development Board.
617
618config NXP_STB225
619	bool "NXP 225 board"
620	select SOC_PNX833X
621	select SOC_PNX8335
622	help
623	  Support for NXP Semiconductors STB225 Development Board.
624
625config PMC_MSP
626	bool "PMC-Sierra MSP chipsets"
627	select CEVT_R4K
628	select CSRC_R4K
629	select DMA_NONCOHERENT
630	select SWAP_IO_SPACE
631	select NO_EXCEPT_FILL
632	select BOOT_RAW
633	select SYS_HAS_CPU_MIPS32_R1
634	select SYS_HAS_CPU_MIPS32_R2
635	select SYS_SUPPORTS_32BIT_KERNEL
636	select SYS_SUPPORTS_BIG_ENDIAN
637	select SYS_SUPPORTS_MIPS16
638	select IRQ_MIPS_CPU
639	select SERIAL_8250
640	select SERIAL_8250_CONSOLE
641	select USB_EHCI_BIG_ENDIAN_MMIO
642	select USB_EHCI_BIG_ENDIAN_DESC
643	help
644	  This adds support for the PMC-Sierra family of Multi-Service
645	  Processor System-On-A-Chips.  These parts include a number
646	  of integrated peripherals, interfaces and DSPs in addition to
647	  a variety of MIPS cores.
648
649config RALINK
650	bool "Ralink based machines"
651	select CEVT_R4K
652	select CSRC_R4K
653	select BOOT_RAW
654	select DMA_NONCOHERENT
655	select IRQ_MIPS_CPU
656	select USE_OF
657	select SYS_HAS_CPU_MIPS32_R1
658	select SYS_HAS_CPU_MIPS32_R2
659	select SYS_SUPPORTS_32BIT_KERNEL
660	select SYS_SUPPORTS_LITTLE_ENDIAN
661	select SYS_SUPPORTS_MIPS16
662	select SYS_HAS_EARLY_PRINTK
663	select CLKDEV_LOOKUP
664	select ARCH_HAS_RESET_CONTROLLER
665	select RESET_CONTROLLER
666
667config SGI_IP22
668	bool "SGI IP22 (Indy/Indigo2)"
669	select ARC_MEMORY
670	select ARC_PROMLIB
671	select FW_ARC
672	select FW_ARC32
673	select ARCH_MIGHT_HAVE_PC_SERIO
674	select BOOT_ELF32
675	select CEVT_R4K
676	select CSRC_R4K
677	select DEFAULT_SGI_PARTITION
678	select DMA_NONCOHERENT
679	select HAVE_EISA
680	select I8253
681	select I8259
682	select IP22_CPU_SCACHE
683	select IRQ_MIPS_CPU
684	select GENERIC_ISA_DMA_SUPPORT_BROKEN
685	select SGI_HAS_I8042
686	select SGI_HAS_INDYDOG
687	select SGI_HAS_HAL2
688	select SGI_HAS_SEEQ
689	select SGI_HAS_WD93
690	select SGI_HAS_ZILOG
691	select SWAP_IO_SPACE
692	select SYS_HAS_CPU_R4X00
693	select SYS_HAS_CPU_R5000
694	select SYS_HAS_EARLY_PRINTK
695	select SYS_SUPPORTS_32BIT_KERNEL
696	select SYS_SUPPORTS_64BIT_KERNEL
697	select SYS_SUPPORTS_BIG_ENDIAN
698	select MIPS_L1_CACHE_SHIFT_7
699	help
700	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
701	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
702	  that runs on these, say Y here.
703
704config SGI_IP27
705	bool "SGI IP27 (Origin200/2000)"
706	select ARCH_HAS_PHYS_TO_DMA
707	select ARCH_SPARSEMEM_ENABLE
708	select FW_ARC
709	select FW_ARC64
710	select ARC_CMDLINE_ONLY
711	select BOOT_ELF64
712	select DEFAULT_SGI_PARTITION
713	select SYS_HAS_EARLY_PRINTK
714	select HAVE_PCI
715	select IRQ_MIPS_CPU
716	select IRQ_DOMAIN_HIERARCHY
717	select NR_CPUS_DEFAULT_64
718	select PCI_DRIVERS_GENERIC
719	select PCI_XTALK_BRIDGE
720	select SYS_HAS_CPU_R10000
721	select SYS_SUPPORTS_64BIT_KERNEL
722	select SYS_SUPPORTS_BIG_ENDIAN
723	select SYS_SUPPORTS_NUMA
724	select SYS_SUPPORTS_SMP
725	select MIPS_L1_CACHE_SHIFT_7
726	help
727	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
728	  workstations.  To compile a Linux kernel that runs on these, say Y
729	  here.
730
731config SGI_IP28
732	bool "SGI IP28 (Indigo2 R10k)"
733	select ARC_MEMORY
734	select ARC_PROMLIB
735	select FW_ARC
736	select FW_ARC64
737	select ARCH_MIGHT_HAVE_PC_SERIO
738	select BOOT_ELF64
739	select CEVT_R4K
740	select CSRC_R4K
741	select DEFAULT_SGI_PARTITION
742	select DMA_NONCOHERENT
743	select GENERIC_ISA_DMA_SUPPORT_BROKEN
744	select IRQ_MIPS_CPU
745	select HAVE_EISA
746	select I8253
747	select I8259
748	select SGI_HAS_I8042
749	select SGI_HAS_INDYDOG
750	select SGI_HAS_HAL2
751	select SGI_HAS_SEEQ
752	select SGI_HAS_WD93
753	select SGI_HAS_ZILOG
754	select SWAP_IO_SPACE
755	select SYS_HAS_CPU_R10000
756	select SYS_HAS_EARLY_PRINTK
757	select SYS_SUPPORTS_64BIT_KERNEL
758	select SYS_SUPPORTS_BIG_ENDIAN
759	select MIPS_L1_CACHE_SHIFT_7
760	help
761	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
762	  kernel that runs on these, say Y here.
763
764config SGI_IP30
765	bool "SGI IP30 (Octane/Octane2)"
766	select ARCH_HAS_PHYS_TO_DMA
767	select FW_ARC
768	select FW_ARC64
769	select BOOT_ELF64
770	select CEVT_R4K
771	select CSRC_R4K
772	select SYNC_R4K if SMP
773	select ZONE_DMA32
774	select HAVE_PCI
775	select IRQ_MIPS_CPU
776	select IRQ_DOMAIN_HIERARCHY
777	select NR_CPUS_DEFAULT_2
778	select PCI_DRIVERS_GENERIC
779	select PCI_XTALK_BRIDGE
780	select SYS_HAS_EARLY_PRINTK
781	select SYS_HAS_CPU_R10000
782	select SYS_SUPPORTS_64BIT_KERNEL
783	select SYS_SUPPORTS_BIG_ENDIAN
784	select SYS_SUPPORTS_SMP
785	select MIPS_L1_CACHE_SHIFT_7
786	select ARC_MEMORY
787	help
788	  These are the SGI Octane and Octane2 graphics workstations.  To
789	  compile a Linux kernel that runs on these, say Y here.
790
791config SGI_IP32
792	bool "SGI IP32 (O2)"
793	select ARC_MEMORY
794	select ARC_PROMLIB
795	select ARCH_HAS_PHYS_TO_DMA
796	select FW_ARC
797	select FW_ARC32
798	select BOOT_ELF32
799	select CEVT_R4K
800	select CSRC_R4K
801	select DMA_NONCOHERENT
802	select HAVE_PCI
803	select IRQ_MIPS_CPU
804	select R5000_CPU_SCACHE
805	select RM7000_CPU_SCACHE
806	select SYS_HAS_CPU_R5000
807	select SYS_HAS_CPU_R10000 if BROKEN
808	select SYS_HAS_CPU_RM7000
809	select SYS_HAS_CPU_NEVADA
810	select SYS_SUPPORTS_64BIT_KERNEL
811	select SYS_SUPPORTS_BIG_ENDIAN
812	help
813	  If you want this kernel to run on SGI O2 workstation, say Y here.
814
815config SIBYTE_CRHINE
816	bool "Sibyte BCM91120C-CRhine"
817	select BOOT_ELF32
818	select SIBYTE_BCM1120
819	select SWAP_IO_SPACE
820	select SYS_HAS_CPU_SB1
821	select SYS_SUPPORTS_BIG_ENDIAN
822	select SYS_SUPPORTS_LITTLE_ENDIAN
823
824config SIBYTE_CARMEL
825	bool "Sibyte BCM91120x-Carmel"
826	select BOOT_ELF32
827	select SIBYTE_BCM1120
828	select SWAP_IO_SPACE
829	select SYS_HAS_CPU_SB1
830	select SYS_SUPPORTS_BIG_ENDIAN
831	select SYS_SUPPORTS_LITTLE_ENDIAN
832
833config SIBYTE_CRHONE
834	bool "Sibyte BCM91125C-CRhone"
835	select BOOT_ELF32
836	select SIBYTE_BCM1125
837	select SWAP_IO_SPACE
838	select SYS_HAS_CPU_SB1
839	select SYS_SUPPORTS_BIG_ENDIAN
840	select SYS_SUPPORTS_HIGHMEM
841	select SYS_SUPPORTS_LITTLE_ENDIAN
842
843config SIBYTE_RHONE
844	bool "Sibyte BCM91125E-Rhone"
845	select BOOT_ELF32
846	select SIBYTE_BCM1125H
847	select SWAP_IO_SPACE
848	select SYS_HAS_CPU_SB1
849	select SYS_SUPPORTS_BIG_ENDIAN
850	select SYS_SUPPORTS_LITTLE_ENDIAN
851
852config SIBYTE_SWARM
853	bool "Sibyte BCM91250A-SWARM"
854	select BOOT_ELF32
855	select HAVE_PATA_PLATFORM
856	select SIBYTE_SB1250
857	select SWAP_IO_SPACE
858	select SYS_HAS_CPU_SB1
859	select SYS_SUPPORTS_BIG_ENDIAN
860	select SYS_SUPPORTS_HIGHMEM
861	select SYS_SUPPORTS_LITTLE_ENDIAN
862	select ZONE_DMA32 if 64BIT
863	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
864
865config SIBYTE_LITTLESUR
866	bool "Sibyte BCM91250C2-LittleSur"
867	select BOOT_ELF32
868	select HAVE_PATA_PLATFORM
869	select SIBYTE_SB1250
870	select SWAP_IO_SPACE
871	select SYS_HAS_CPU_SB1
872	select SYS_SUPPORTS_BIG_ENDIAN
873	select SYS_SUPPORTS_HIGHMEM
874	select SYS_SUPPORTS_LITTLE_ENDIAN
875	select ZONE_DMA32 if 64BIT
876
877config SIBYTE_SENTOSA
878	bool "Sibyte BCM91250E-Sentosa"
879	select BOOT_ELF32
880	select SIBYTE_SB1250
881	select SWAP_IO_SPACE
882	select SYS_HAS_CPU_SB1
883	select SYS_SUPPORTS_BIG_ENDIAN
884	select SYS_SUPPORTS_LITTLE_ENDIAN
885	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
886
887config SIBYTE_BIGSUR
888	bool "Sibyte BCM91480B-BigSur"
889	select BOOT_ELF32
890	select NR_CPUS_DEFAULT_4
891	select SIBYTE_BCM1x80
892	select SWAP_IO_SPACE
893	select SYS_HAS_CPU_SB1
894	select SYS_SUPPORTS_BIG_ENDIAN
895	select SYS_SUPPORTS_HIGHMEM
896	select SYS_SUPPORTS_LITTLE_ENDIAN
897	select ZONE_DMA32 if 64BIT
898	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
899
900config SNI_RM
901	bool "SNI RM200/300/400"
902	select ARC_MEMORY
903	select ARC_PROMLIB
904	select FW_ARC if CPU_LITTLE_ENDIAN
905	select FW_ARC32 if CPU_LITTLE_ENDIAN
906	select FW_SNIPROM if CPU_BIG_ENDIAN
907	select ARCH_MAY_HAVE_PC_FDC
908	select ARCH_MIGHT_HAVE_PC_PARPORT
909	select ARCH_MIGHT_HAVE_PC_SERIO
910	select BOOT_ELF32
911	select CEVT_R4K
912	select CSRC_R4K
913	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
914	select DMA_NONCOHERENT
915	select GENERIC_ISA_DMA
916	select HAVE_EISA
917	select HAVE_PCSPKR_PLATFORM
918	select HAVE_PCI
919	select IRQ_MIPS_CPU
920	select I8253
921	select I8259
922	select ISA
923	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
924	select SYS_HAS_CPU_R4X00
925	select SYS_HAS_CPU_R5000
926	select SYS_HAS_CPU_R10000
927	select R5000_CPU_SCACHE
928	select SYS_HAS_EARLY_PRINTK
929	select SYS_SUPPORTS_32BIT_KERNEL
930	select SYS_SUPPORTS_64BIT_KERNEL
931	select SYS_SUPPORTS_BIG_ENDIAN
932	select SYS_SUPPORTS_HIGHMEM
933	select SYS_SUPPORTS_LITTLE_ENDIAN
934	help
935	  The SNI RM200/300/400 are MIPS-based machines manufactured by
936	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
937	  Technology and now in turn merged with Fujitsu.  Say Y here to
938	  support this machine type.
939
940config MACH_TX39XX
941	bool "Toshiba TX39 series based machines"
942
943config MACH_TX49XX
944	bool "Toshiba TX49 series based machines"
945
946config MIKROTIK_RB532
947	bool "Mikrotik RB532 boards"
948	select CEVT_R4K
949	select CSRC_R4K
950	select DMA_NONCOHERENT
951	select HAVE_PCI
952	select IRQ_MIPS_CPU
953	select SYS_HAS_CPU_MIPS32_R1
954	select SYS_SUPPORTS_32BIT_KERNEL
955	select SYS_SUPPORTS_LITTLE_ENDIAN
956	select SWAP_IO_SPACE
957	select BOOT_RAW
958	select GPIOLIB
959	select MIPS_L1_CACHE_SHIFT_4
960	help
961	  Support the Mikrotik(tm) RouterBoard 532 series,
962	  based on the IDT RC32434 SoC.
963
964config CAVIUM_OCTEON_SOC
965	bool "Cavium Networks Octeon SoC based boards"
966	select CEVT_R4K
967	select ARCH_HAS_PHYS_TO_DMA
968	select HAVE_RAPIDIO
969	select PHYS_ADDR_T_64BIT
970	select SYS_SUPPORTS_64BIT_KERNEL
971	select SYS_SUPPORTS_BIG_ENDIAN
972	select EDAC_SUPPORT
973	select EDAC_ATOMIC_SCRUB
974	select SYS_SUPPORTS_LITTLE_ENDIAN
975	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
976	select SYS_HAS_EARLY_PRINTK
977	select SYS_HAS_CPU_CAVIUM_OCTEON
978	select HAVE_PCI
979	select ZONE_DMA32
980	select HOLES_IN_ZONE
981	select GPIOLIB
982	select LIBFDT
983	select USE_OF
984	select ARCH_SPARSEMEM_ENABLE
985	select SYS_SUPPORTS_SMP
986	select NR_CPUS_DEFAULT_64
987	select MIPS_NR_CPU_NR_MAP_1024
988	select BUILTIN_DTB
989	select MTD_COMPLEX_MAPPINGS
990	select SWIOTLB
991	select SYS_SUPPORTS_RELOCATABLE
992	help
993	  This option supports all of the Octeon reference boards from Cavium
994	  Networks. It builds a kernel that dynamically determines the Octeon
995	  CPU type and supports all known board reference implementations.
996	  Some of the supported boards are:
997		EBT3000
998		EBH3000
999		EBH3100
1000		Thunder
1001		Kodama
1002		Hikari
1003	  Say Y here for most Octeon reference boards.
1004
1005config NLM_XLR_BOARD
1006	bool "Netlogic XLR/XLS based systems"
1007	select BOOT_ELF32
1008	select NLM_COMMON
1009	select SYS_HAS_CPU_XLR
1010	select SYS_SUPPORTS_SMP
1011	select HAVE_PCI
1012	select SWAP_IO_SPACE
1013	select SYS_SUPPORTS_32BIT_KERNEL
1014	select SYS_SUPPORTS_64BIT_KERNEL
1015	select PHYS_ADDR_T_64BIT
1016	select SYS_SUPPORTS_BIG_ENDIAN
1017	select SYS_SUPPORTS_HIGHMEM
1018	select NR_CPUS_DEFAULT_32
1019	select CEVT_R4K
1020	select CSRC_R4K
1021	select IRQ_MIPS_CPU
1022	select ZONE_DMA32 if 64BIT
1023	select SYNC_R4K
1024	select SYS_HAS_EARLY_PRINTK
1025	select SYS_SUPPORTS_ZBOOT
1026	select SYS_SUPPORTS_ZBOOT_UART16550
1027	help
1028	  Support for systems based on Netlogic XLR and XLS processors.
1029	  Say Y here if you have a XLR or XLS based board.
1030
1031config NLM_XLP_BOARD
1032	bool "Netlogic XLP based systems"
1033	select BOOT_ELF32
1034	select NLM_COMMON
1035	select SYS_HAS_CPU_XLP
1036	select SYS_SUPPORTS_SMP
1037	select HAVE_PCI
1038	select SYS_SUPPORTS_32BIT_KERNEL
1039	select SYS_SUPPORTS_64BIT_KERNEL
1040	select PHYS_ADDR_T_64BIT
1041	select GPIOLIB
1042	select SYS_SUPPORTS_BIG_ENDIAN
1043	select SYS_SUPPORTS_LITTLE_ENDIAN
1044	select SYS_SUPPORTS_HIGHMEM
1045	select NR_CPUS_DEFAULT_32
1046	select CEVT_R4K
1047	select CSRC_R4K
1048	select IRQ_MIPS_CPU
1049	select ZONE_DMA32 if 64BIT
1050	select SYNC_R4K
1051	select SYS_HAS_EARLY_PRINTK
1052	select USE_OF
1053	select SYS_SUPPORTS_ZBOOT
1054	select SYS_SUPPORTS_ZBOOT_UART16550
1055	help
1056	  This board is based on Netlogic XLP Processor.
1057	  Say Y here if you have a XLP based board.
1058
1059config MIPS_PARAVIRT
1060	bool "Para-Virtualized guest system"
1061	select CEVT_R4K
1062	select CSRC_R4K
1063	select SYS_SUPPORTS_64BIT_KERNEL
1064	select SYS_SUPPORTS_32BIT_KERNEL
1065	select SYS_SUPPORTS_BIG_ENDIAN
1066	select SYS_SUPPORTS_SMP
1067	select NR_CPUS_DEFAULT_4
1068	select SYS_HAS_EARLY_PRINTK
1069	select SYS_HAS_CPU_MIPS32_R2
1070	select SYS_HAS_CPU_MIPS64_R2
1071	select SYS_HAS_CPU_CAVIUM_OCTEON
1072	select HAVE_PCI
1073	select SWAP_IO_SPACE
1074	help
1075	  This option supports guest running under ????
1076
1077endchoice
1078
1079source "arch/mips/alchemy/Kconfig"
1080source "arch/mips/ath25/Kconfig"
1081source "arch/mips/ath79/Kconfig"
1082source "arch/mips/bcm47xx/Kconfig"
1083source "arch/mips/bcm63xx/Kconfig"
1084source "arch/mips/bmips/Kconfig"
1085source "arch/mips/generic/Kconfig"
1086source "arch/mips/jazz/Kconfig"
1087source "arch/mips/jz4740/Kconfig"
1088source "arch/mips/lantiq/Kconfig"
1089source "arch/mips/lasat/Kconfig"
1090source "arch/mips/pic32/Kconfig"
1091source "arch/mips/pistachio/Kconfig"
1092source "arch/mips/pmcs-msp71xx/Kconfig"
1093source "arch/mips/ralink/Kconfig"
1094source "arch/mips/sgi-ip27/Kconfig"
1095source "arch/mips/sibyte/Kconfig"
1096source "arch/mips/txx9/Kconfig"
1097source "arch/mips/vr41xx/Kconfig"
1098source "arch/mips/cavium-octeon/Kconfig"
1099source "arch/mips/loongson2ef/Kconfig"
1100source "arch/mips/loongson32/Kconfig"
1101source "arch/mips/loongson64/Kconfig"
1102source "arch/mips/netlogic/Kconfig"
1103source "arch/mips/paravirt/Kconfig"
1104
1105endmenu
1106
1107config GENERIC_HWEIGHT
1108	bool
1109	default y
1110
1111config GENERIC_CALIBRATE_DELAY
1112	bool
1113	default y
1114
1115config SCHED_OMIT_FRAME_POINTER
1116	bool
1117	default y
1118
1119#
1120# Select some configuration options automatically based on user selections.
1121#
1122config FW_ARC
1123	bool
1124
1125config ARCH_MAY_HAVE_PC_FDC
1126	bool
1127
1128config BOOT_RAW
1129	bool
1130
1131config CEVT_BCM1480
1132	bool
1133
1134config CEVT_DS1287
1135	bool
1136
1137config CEVT_GT641XX
1138	bool
1139
1140config CEVT_R4K
1141	bool
1142
1143config CEVT_SB1250
1144	bool
1145
1146config CEVT_TXX9
1147	bool
1148
1149config CSRC_BCM1480
1150	bool
1151
1152config CSRC_IOASIC
1153	bool
1154
1155config CSRC_R4K
1156	bool
1157
1158config CSRC_SB1250
1159	bool
1160
1161config MIPS_CLOCK_VSYSCALL
1162	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1163
1164config GPIO_TXX9
1165	select GPIOLIB
1166	bool
1167
1168config FW_CFE
1169	bool
1170
1171config ARCH_SUPPORTS_UPROBES
1172	bool
1173
1174config DMA_MAYBE_COHERENT
1175	select ARCH_HAS_DMA_COHERENCE_H
1176	select DMA_NONCOHERENT
1177	bool
1178
1179config DMA_PERDEV_COHERENT
1180	bool
1181	select ARCH_HAS_SETUP_DMA_OPS
1182	select DMA_NONCOHERENT
1183
1184config DMA_NONCOHERENT
1185	bool
1186	#
1187	# MIPS allows mixing "slightly different" Cacheability and Coherency
1188	# Attribute bits.  It is believed that the uncached access through
1189	# KSEG1 and the implementation specific "uncached accelerated" used
1190	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1191	# significant advantages.
1192	#
1193	select ARCH_HAS_DMA_WRITE_COMBINE
1194	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1195	select ARCH_HAS_UNCACHED_SEGMENT
1196	select NEED_DMA_MAP_STATE
1197	select ARCH_HAS_DMA_COHERENT_TO_PFN
1198	select DMA_NONCOHERENT_CACHE_SYNC
1199
1200config SYS_HAS_EARLY_PRINTK
1201	bool
1202
1203config SYS_SUPPORTS_HOTPLUG_CPU
1204	bool
1205
1206config MIPS_BONITO64
1207	bool
1208
1209config MIPS_MSC
1210	bool
1211
1212config MIPS_NILE4
1213	bool
1214
1215config SYNC_R4K
1216	bool
1217
1218config MIPS_MACHINE
1219	def_bool n
1220
1221config NO_IOPORT_MAP
1222	def_bool n
1223
1224config GENERIC_CSUM
1225	bool
1226	default y if !CPU_HAS_LOAD_STORE_LR
1227
1228config GENERIC_ISA_DMA
1229	bool
1230	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1231	select ISA_DMA_API
1232
1233config GENERIC_ISA_DMA_SUPPORT_BROKEN
1234	bool
1235	select GENERIC_ISA_DMA
1236
1237config ISA_DMA_API
1238	bool
1239
1240config HOLES_IN_ZONE
1241	bool
1242
1243config SYS_SUPPORTS_RELOCATABLE
1244	bool
1245	help
1246	  Selected if the platform supports relocating the kernel.
1247	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1248	  to allow access to command line and entropy sources.
1249
1250config MIPS_CBPF_JIT
1251	def_bool y
1252	depends on BPF_JIT && HAVE_CBPF_JIT
1253
1254config MIPS_EBPF_JIT
1255	def_bool y
1256	depends on BPF_JIT && HAVE_EBPF_JIT
1257
1258
1259#
1260# Endianness selection.  Sufficiently obscure so many users don't know what to
1261# answer,so we try hard to limit the available choices.  Also the use of a
1262# choice statement should be more obvious to the user.
1263#
1264choice
1265	prompt "Endianness selection"
1266	help
1267	  Some MIPS machines can be configured for either little or big endian
1268	  byte order. These modes require different kernels and a different
1269	  Linux distribution.  In general there is one preferred byteorder for a
1270	  particular system but some systems are just as commonly used in the
1271	  one or the other endianness.
1272
1273config CPU_BIG_ENDIAN
1274	bool "Big endian"
1275	depends on SYS_SUPPORTS_BIG_ENDIAN
1276
1277config CPU_LITTLE_ENDIAN
1278	bool "Little endian"
1279	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1280
1281endchoice
1282
1283config EXPORT_UASM
1284	bool
1285
1286config SYS_SUPPORTS_APM_EMULATION
1287	bool
1288
1289config SYS_SUPPORTS_BIG_ENDIAN
1290	bool
1291
1292config SYS_SUPPORTS_LITTLE_ENDIAN
1293	bool
1294
1295config SYS_SUPPORTS_HUGETLBFS
1296	bool
1297	depends on CPU_SUPPORTS_HUGEPAGES
1298	default y
1299
1300config MIPS_HUGE_TLB_SUPPORT
1301	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1302
1303config IRQ_CPU_RM7K
1304	bool
1305
1306config IRQ_MSP_SLP
1307	bool
1308
1309config IRQ_MSP_CIC
1310	bool
1311
1312config IRQ_TXX9
1313	bool
1314
1315config IRQ_GT641XX
1316	bool
1317
1318config PCI_GT64XXX_PCI0
1319	bool
1320
1321config PCI_XTALK_BRIDGE
1322	bool
1323
1324config NO_EXCEPT_FILL
1325	bool
1326
1327config SOC_EMMA2RH
1328	bool
1329	select CEVT_R4K
1330	select CSRC_R4K
1331	select DMA_NONCOHERENT
1332	select IRQ_MIPS_CPU
1333	select SWAP_IO_SPACE
1334	select SYS_HAS_CPU_R5500
1335	select SYS_SUPPORTS_32BIT_KERNEL
1336	select SYS_SUPPORTS_64BIT_KERNEL
1337	select SYS_SUPPORTS_BIG_ENDIAN
1338
1339config SOC_PNX833X
1340	bool
1341	select CEVT_R4K
1342	select CSRC_R4K
1343	select IRQ_MIPS_CPU
1344	select DMA_NONCOHERENT
1345	select SYS_HAS_CPU_MIPS32_R2
1346	select SYS_SUPPORTS_32BIT_KERNEL
1347	select SYS_SUPPORTS_LITTLE_ENDIAN
1348	select SYS_SUPPORTS_BIG_ENDIAN
1349	select SYS_SUPPORTS_MIPS16
1350	select CPU_MIPSR2_IRQ_VI
1351
1352config SOC_PNX8335
1353	bool
1354	select SOC_PNX833X
1355
1356config MIPS_SPRAM
1357	bool
1358
1359config SWAP_IO_SPACE
1360	bool
1361
1362config SGI_HAS_INDYDOG
1363	bool
1364
1365config SGI_HAS_HAL2
1366	bool
1367
1368config SGI_HAS_SEEQ
1369	bool
1370
1371config SGI_HAS_WD93
1372	bool
1373
1374config SGI_HAS_ZILOG
1375	bool
1376
1377config SGI_HAS_I8042
1378	bool
1379
1380config DEFAULT_SGI_PARTITION
1381	bool
1382
1383config FW_ARC32
1384	bool
1385
1386config FW_SNIPROM
1387	bool
1388
1389config BOOT_ELF32
1390	bool
1391
1392config MIPS_L1_CACHE_SHIFT_4
1393	bool
1394
1395config MIPS_L1_CACHE_SHIFT_5
1396	bool
1397
1398config MIPS_L1_CACHE_SHIFT_6
1399	bool
1400
1401config MIPS_L1_CACHE_SHIFT_7
1402	bool
1403
1404config MIPS_L1_CACHE_SHIFT
1405	int
1406	default "7" if MIPS_L1_CACHE_SHIFT_7
1407	default "6" if MIPS_L1_CACHE_SHIFT_6
1408	default "5" if MIPS_L1_CACHE_SHIFT_5
1409	default "4" if MIPS_L1_CACHE_SHIFT_4
1410	default "5"
1411
1412config HAVE_STD_PC_SERIAL_PORT
1413	bool
1414
1415config ARC_CMDLINE_ONLY
1416	bool
1417
1418config ARC_CONSOLE
1419	bool "ARC console support"
1420	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1421
1422config ARC_MEMORY
1423	bool
1424
1425config ARC_PROMLIB
1426	bool
1427
1428config FW_ARC64
1429	bool
1430
1431config BOOT_ELF64
1432	bool
1433
1434menu "CPU selection"
1435
1436choice
1437	prompt "CPU type"
1438	default CPU_R4X00
1439
1440config CPU_LOONGSON64
1441	bool "Loongson 64-bit CPU"
1442	depends on SYS_HAS_CPU_LOONGSON64
1443	select ARCH_HAS_PHYS_TO_DMA
1444	select CPU_SUPPORTS_64BIT_KERNEL
1445	select CPU_SUPPORTS_HIGHMEM
1446	select CPU_SUPPORTS_HUGEPAGES
1447	select CPU_SUPPORTS_MSA
1448	select CPU_HAS_LOAD_STORE_LR
1449	select WEAK_ORDERING
1450	select WEAK_REORDERING_BEYOND_LLSC
1451	select MIPS_ASID_BITS_VARIABLE
1452	select MIPS_PGD_C0_CONTEXT
1453	select MIPS_L1_CACHE_SHIFT_6
1454	select GPIOLIB
1455	select SWIOTLB
1456	help
1457		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1458		cores implements the MIPS64R2 instruction set with many extensions,
1459		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1460		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1461		Loongson-2E/2F is not covered here and will be removed in future.
1462
1463config LOONGSON3_ENHANCEMENT
1464	bool "New Loongson-3 CPU Enhancements"
1465	default n
1466	select CPU_MIPSR2
1467	select CPU_HAS_PREFETCH
1468	depends on CPU_LOONGSON64
1469	help
1470	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1471	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1472	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1473	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1474	  Fast TLB refill support, etc.
1475
1476	  This option enable those enhancements which are not probed at run
1477	  time. If you want a generic kernel to run on all Loongson 3 machines,
1478	  please say 'N' here. If you want a high-performance kernel to run on
1479	  new Loongson-3 machines only, please say 'Y' here.
1480
1481config CPU_LOONGSON3_WORKAROUNDS
1482	bool "Old Loongson-3 LLSC Workarounds"
1483	default y if SMP
1484	depends on CPU_LOONGSON64
1485	help
1486	  Loongson-3 processors have the llsc issues which require workarounds.
1487	  Without workarounds the system may hang unexpectedly.
1488
1489	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1490	  The workarounds have no significant side effect on them but may
1491	  decrease the performance of the system so this option should be
1492	  disabled unless the kernel is intended to be run on old systems.
1493
1494	  If unsure, please say Y.
1495
1496config CPU_LOONGSON2E
1497	bool "Loongson 2E"
1498	depends on SYS_HAS_CPU_LOONGSON2E
1499	select CPU_LOONGSON2EF
1500	help
1501	  The Loongson 2E processor implements the MIPS III instruction set
1502	  with many extensions.
1503
1504	  It has an internal FPGA northbridge, which is compatible to
1505	  bonito64.
1506
1507config CPU_LOONGSON2F
1508	bool "Loongson 2F"
1509	depends on SYS_HAS_CPU_LOONGSON2F
1510	select CPU_LOONGSON2EF
1511	select GPIOLIB
1512	help
1513	  The Loongson 2F processor implements the MIPS III instruction set
1514	  with many extensions.
1515
1516	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1517	  have a similar programming interface with FPGA northbridge used in
1518	  Loongson2E.
1519
1520config CPU_LOONGSON1B
1521	bool "Loongson 1B"
1522	depends on SYS_HAS_CPU_LOONGSON1B
1523	select CPU_LOONGSON32
1524	select LEDS_GPIO_REGISTER
1525	help
1526	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1527	  Release 1 instruction set and part of the MIPS32 Release 2
1528	  instruction set.
1529
1530config CPU_LOONGSON1C
1531	bool "Loongson 1C"
1532	depends on SYS_HAS_CPU_LOONGSON1C
1533	select CPU_LOONGSON32
1534	select LEDS_GPIO_REGISTER
1535	help
1536	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1537	  Release 1 instruction set and part of the MIPS32 Release 2
1538	  instruction set.
1539
1540config CPU_MIPS32_R1
1541	bool "MIPS32 Release 1"
1542	depends on SYS_HAS_CPU_MIPS32_R1
1543	select CPU_HAS_PREFETCH
1544	select CPU_HAS_LOAD_STORE_LR
1545	select CPU_SUPPORTS_32BIT_KERNEL
1546	select CPU_SUPPORTS_HIGHMEM
1547	help
1548	  Choose this option to build a kernel for release 1 or later of the
1549	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1550	  MIPS processor are based on a MIPS32 processor.  If you know the
1551	  specific type of processor in your system, choose those that one
1552	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1553	  Release 2 of the MIPS32 architecture is available since several
1554	  years so chances are you even have a MIPS32 Release 2 processor
1555	  in which case you should choose CPU_MIPS32_R2 instead for better
1556	  performance.
1557
1558config CPU_MIPS32_R2
1559	bool "MIPS32 Release 2"
1560	depends on SYS_HAS_CPU_MIPS32_R2
1561	select CPU_HAS_PREFETCH
1562	select CPU_HAS_LOAD_STORE_LR
1563	select CPU_SUPPORTS_32BIT_KERNEL
1564	select CPU_SUPPORTS_HIGHMEM
1565	select CPU_SUPPORTS_MSA
1566	select HAVE_KVM
1567	help
1568	  Choose this option to build a kernel for release 2 or later of the
1569	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1570	  MIPS processor are based on a MIPS32 processor.  If you know the
1571	  specific type of processor in your system, choose those that one
1572	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1573
1574config CPU_MIPS32_R6
1575	bool "MIPS32 Release 6"
1576	depends on SYS_HAS_CPU_MIPS32_R6
1577	select CPU_HAS_PREFETCH
1578	select CPU_SUPPORTS_32BIT_KERNEL
1579	select CPU_SUPPORTS_HIGHMEM
1580	select CPU_SUPPORTS_MSA
1581	select HAVE_KVM
1582	select MIPS_O32_FP64_SUPPORT
1583	help
1584	  Choose this option to build a kernel for release 6 or later of the
1585	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1586	  family, are based on a MIPS32r6 processor. If you own an older
1587	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1588
1589config CPU_MIPS64_R1
1590	bool "MIPS64 Release 1"
1591	depends on SYS_HAS_CPU_MIPS64_R1
1592	select CPU_HAS_PREFETCH
1593	select CPU_HAS_LOAD_STORE_LR
1594	select CPU_SUPPORTS_32BIT_KERNEL
1595	select CPU_SUPPORTS_64BIT_KERNEL
1596	select CPU_SUPPORTS_HIGHMEM
1597	select CPU_SUPPORTS_HUGEPAGES
1598	help
1599	  Choose this option to build a kernel for release 1 or later of the
1600	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1601	  MIPS processor are based on a MIPS64 processor.  If you know the
1602	  specific type of processor in your system, choose those that one
1603	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1604	  Release 2 of the MIPS64 architecture is available since several
1605	  years so chances are you even have a MIPS64 Release 2 processor
1606	  in which case you should choose CPU_MIPS64_R2 instead for better
1607	  performance.
1608
1609config CPU_MIPS64_R2
1610	bool "MIPS64 Release 2"
1611	depends on SYS_HAS_CPU_MIPS64_R2
1612	select CPU_HAS_PREFETCH
1613	select CPU_HAS_LOAD_STORE_LR
1614	select CPU_SUPPORTS_32BIT_KERNEL
1615	select CPU_SUPPORTS_64BIT_KERNEL
1616	select CPU_SUPPORTS_HIGHMEM
1617	select CPU_SUPPORTS_HUGEPAGES
1618	select CPU_SUPPORTS_MSA
1619	select HAVE_KVM
1620	help
1621	  Choose this option to build a kernel for release 2 or later of the
1622	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1623	  MIPS processor are based on a MIPS64 processor.  If you know the
1624	  specific type of processor in your system, choose those that one
1625	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1626
1627config CPU_MIPS64_R6
1628	bool "MIPS64 Release 6"
1629	depends on SYS_HAS_CPU_MIPS64_R6
1630	select CPU_HAS_PREFETCH
1631	select CPU_SUPPORTS_32BIT_KERNEL
1632	select CPU_SUPPORTS_64BIT_KERNEL
1633	select CPU_SUPPORTS_HIGHMEM
1634	select CPU_SUPPORTS_HUGEPAGES
1635	select CPU_SUPPORTS_MSA
1636	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1637	select HAVE_KVM
1638	help
1639	  Choose this option to build a kernel for release 6 or later of the
1640	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1641	  family, are based on a MIPS64r6 processor. If you own an older
1642	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1643
1644config CPU_R3000
1645	bool "R3000"
1646	depends on SYS_HAS_CPU_R3000
1647	select CPU_HAS_WB
1648	select CPU_HAS_LOAD_STORE_LR
1649	select CPU_R3K_TLB
1650	select CPU_SUPPORTS_32BIT_KERNEL
1651	select CPU_SUPPORTS_HIGHMEM
1652	help
1653	  Please make sure to pick the right CPU type. Linux/MIPS is not
1654	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1655	  *not* work on R4000 machines and vice versa.  However, since most
1656	  of the supported machines have an R4000 (or similar) CPU, R4x00
1657	  might be a safe bet.  If the resulting kernel does not work,
1658	  try to recompile with R3000.
1659
1660config CPU_TX39XX
1661	bool "R39XX"
1662	depends on SYS_HAS_CPU_TX39XX
1663	select CPU_SUPPORTS_32BIT_KERNEL
1664	select CPU_HAS_LOAD_STORE_LR
1665	select CPU_R3K_TLB
1666
1667config CPU_VR41XX
1668	bool "R41xx"
1669	depends on SYS_HAS_CPU_VR41XX
1670	select CPU_SUPPORTS_32BIT_KERNEL
1671	select CPU_SUPPORTS_64BIT_KERNEL
1672	select CPU_HAS_LOAD_STORE_LR
1673	help
1674	  The options selects support for the NEC VR4100 series of processors.
1675	  Only choose this option if you have one of these processors as a
1676	  kernel built with this option will not run on any other type of
1677	  processor or vice versa.
1678
1679config CPU_R4X00
1680	bool "R4x00"
1681	depends on SYS_HAS_CPU_R4X00
1682	select CPU_SUPPORTS_32BIT_KERNEL
1683	select CPU_SUPPORTS_64BIT_KERNEL
1684	select CPU_SUPPORTS_HUGEPAGES
1685	select CPU_HAS_LOAD_STORE_LR
1686	help
1687	  MIPS Technologies R4000-series processors other than 4300, including
1688	  the R4000, R4400, R4600, and 4700.
1689
1690config CPU_TX49XX
1691	bool "R49XX"
1692	depends on SYS_HAS_CPU_TX49XX
1693	select CPU_HAS_PREFETCH
1694	select CPU_HAS_LOAD_STORE_LR
1695	select CPU_SUPPORTS_32BIT_KERNEL
1696	select CPU_SUPPORTS_64BIT_KERNEL
1697	select CPU_SUPPORTS_HUGEPAGES
1698
1699config CPU_R5000
1700	bool "R5000"
1701	depends on SYS_HAS_CPU_R5000
1702	select CPU_SUPPORTS_32BIT_KERNEL
1703	select CPU_SUPPORTS_64BIT_KERNEL
1704	select CPU_SUPPORTS_HUGEPAGES
1705	select CPU_HAS_LOAD_STORE_LR
1706	help
1707	  MIPS Technologies R5000-series processors other than the Nevada.
1708
1709config CPU_R5500
1710	bool "R5500"
1711	depends on SYS_HAS_CPU_R5500
1712	select CPU_SUPPORTS_32BIT_KERNEL
1713	select CPU_SUPPORTS_64BIT_KERNEL
1714	select CPU_SUPPORTS_HUGEPAGES
1715	select CPU_HAS_LOAD_STORE_LR
1716	help
1717	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1718	  instruction set.
1719
1720config CPU_NEVADA
1721	bool "RM52xx"
1722	depends on SYS_HAS_CPU_NEVADA
1723	select CPU_SUPPORTS_32BIT_KERNEL
1724	select CPU_SUPPORTS_64BIT_KERNEL
1725	select CPU_SUPPORTS_HUGEPAGES
1726	select CPU_HAS_LOAD_STORE_LR
1727	help
1728	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1729
1730config CPU_R10000
1731	bool "R10000"
1732	depends on SYS_HAS_CPU_R10000
1733	select CPU_HAS_PREFETCH
1734	select CPU_HAS_LOAD_STORE_LR
1735	select CPU_SUPPORTS_32BIT_KERNEL
1736	select CPU_SUPPORTS_64BIT_KERNEL
1737	select CPU_SUPPORTS_HIGHMEM
1738	select CPU_SUPPORTS_HUGEPAGES
1739	help
1740	  MIPS Technologies R10000-series processors.
1741
1742config CPU_RM7000
1743	bool "RM7000"
1744	depends on SYS_HAS_CPU_RM7000
1745	select CPU_HAS_PREFETCH
1746	select CPU_HAS_LOAD_STORE_LR
1747	select CPU_SUPPORTS_32BIT_KERNEL
1748	select CPU_SUPPORTS_64BIT_KERNEL
1749	select CPU_SUPPORTS_HIGHMEM
1750	select CPU_SUPPORTS_HUGEPAGES
1751
1752config CPU_SB1
1753	bool "SB1"
1754	depends on SYS_HAS_CPU_SB1
1755	select CPU_HAS_LOAD_STORE_LR
1756	select CPU_SUPPORTS_32BIT_KERNEL
1757	select CPU_SUPPORTS_64BIT_KERNEL
1758	select CPU_SUPPORTS_HIGHMEM
1759	select CPU_SUPPORTS_HUGEPAGES
1760	select WEAK_ORDERING
1761
1762config CPU_CAVIUM_OCTEON
1763	bool "Cavium Octeon processor"
1764	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1765	select CPU_HAS_PREFETCH
1766	select CPU_HAS_LOAD_STORE_LR
1767	select CPU_SUPPORTS_64BIT_KERNEL
1768	select WEAK_ORDERING
1769	select CPU_SUPPORTS_HIGHMEM
1770	select CPU_SUPPORTS_HUGEPAGES
1771	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1772	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1773	select MIPS_L1_CACHE_SHIFT_7
1774	select HAVE_KVM
1775	help
1776	  The Cavium Octeon processor is a highly integrated chip containing
1777	  many ethernet hardware widgets for networking tasks. The processor
1778	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1779	  Full details can be found at http://www.caviumnetworks.com.
1780
1781config CPU_BMIPS
1782	bool "Broadcom BMIPS"
1783	depends on SYS_HAS_CPU_BMIPS
1784	select CPU_MIPS32
1785	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1786	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1787	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1788	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1789	select CPU_SUPPORTS_32BIT_KERNEL
1790	select DMA_NONCOHERENT
1791	select IRQ_MIPS_CPU
1792	select SWAP_IO_SPACE
1793	select WEAK_ORDERING
1794	select CPU_SUPPORTS_HIGHMEM
1795	select CPU_HAS_PREFETCH
1796	select CPU_HAS_LOAD_STORE_LR
1797	select CPU_SUPPORTS_CPUFREQ
1798	select MIPS_EXTERNAL_TIMER
1799	help
1800	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1801
1802config CPU_XLR
1803	bool "Netlogic XLR SoC"
1804	depends on SYS_HAS_CPU_XLR
1805	select CPU_HAS_LOAD_STORE_LR
1806	select CPU_SUPPORTS_32BIT_KERNEL
1807	select CPU_SUPPORTS_64BIT_KERNEL
1808	select CPU_SUPPORTS_HIGHMEM
1809	select CPU_SUPPORTS_HUGEPAGES
1810	select WEAK_ORDERING
1811	select WEAK_REORDERING_BEYOND_LLSC
1812	help
1813	  Netlogic Microsystems XLR/XLS processors.
1814
1815config CPU_XLP
1816	bool "Netlogic XLP SoC"
1817	depends on SYS_HAS_CPU_XLP
1818	select CPU_SUPPORTS_32BIT_KERNEL
1819	select CPU_SUPPORTS_64BIT_KERNEL
1820	select CPU_SUPPORTS_HIGHMEM
1821	select WEAK_ORDERING
1822	select WEAK_REORDERING_BEYOND_LLSC
1823	select CPU_HAS_PREFETCH
1824	select CPU_HAS_LOAD_STORE_LR
1825	select CPU_MIPSR2
1826	select CPU_SUPPORTS_HUGEPAGES
1827	select MIPS_ASID_BITS_VARIABLE
1828	help
1829	  Netlogic Microsystems XLP processors.
1830endchoice
1831
1832config CPU_MIPS32_3_5_FEATURES
1833	bool "MIPS32 Release 3.5 Features"
1834	depends on SYS_HAS_CPU_MIPS32_R3_5
1835	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1836	help
1837	  Choose this option to build a kernel for release 2 or later of the
1838	  MIPS32 architecture including features from the 3.5 release such as
1839	  support for Enhanced Virtual Addressing (EVA).
1840
1841config CPU_MIPS32_3_5_EVA
1842	bool "Enhanced Virtual Addressing (EVA)"
1843	depends on CPU_MIPS32_3_5_FEATURES
1844	select EVA
1845	default y
1846	help
1847	  Choose this option if you want to enable the Enhanced Virtual
1848	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1849	  One of its primary benefits is an increase in the maximum size
1850	  of lowmem (up to 3GB). If unsure, say 'N' here.
1851
1852config CPU_MIPS32_R5_FEATURES
1853	bool "MIPS32 Release 5 Features"
1854	depends on SYS_HAS_CPU_MIPS32_R5
1855	depends on CPU_MIPS32_R2
1856	help
1857	  Choose this option to build a kernel for release 2 or later of the
1858	  MIPS32 architecture including features from release 5 such as
1859	  support for Extended Physical Addressing (XPA).
1860
1861config CPU_MIPS32_R5_XPA
1862	bool "Extended Physical Addressing (XPA)"
1863	depends on CPU_MIPS32_R5_FEATURES
1864	depends on !EVA
1865	depends on !PAGE_SIZE_4KB
1866	depends on SYS_SUPPORTS_HIGHMEM
1867	select XPA
1868	select HIGHMEM
1869	select PHYS_ADDR_T_64BIT
1870	default n
1871	help
1872	  Choose this option if you want to enable the Extended Physical
1873	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1874	  benefit is to increase physical addressing equal to or greater
1875	  than 40 bits. Note that this has the side effect of turning on
1876	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1877	  If unsure, say 'N' here.
1878
1879if CPU_LOONGSON2F
1880config CPU_NOP_WORKAROUNDS
1881	bool
1882
1883config CPU_JUMP_WORKAROUNDS
1884	bool
1885
1886config CPU_LOONGSON2F_WORKAROUNDS
1887	bool "Loongson 2F Workarounds"
1888	default y
1889	select CPU_NOP_WORKAROUNDS
1890	select CPU_JUMP_WORKAROUNDS
1891	help
1892	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1893	  require workarounds.  Without workarounds the system may hang
1894	  unexpectedly.  For more information please refer to the gas
1895	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1896
1897	  Loongson 2F03 and later have fixed these issues and no workarounds
1898	  are needed.  The workarounds have no significant side effect on them
1899	  but may decrease the performance of the system so this option should
1900	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1901	  systems.
1902
1903	  If unsure, please say Y.
1904endif # CPU_LOONGSON2F
1905
1906config SYS_SUPPORTS_ZBOOT
1907	bool
1908	select HAVE_KERNEL_GZIP
1909	select HAVE_KERNEL_BZIP2
1910	select HAVE_KERNEL_LZ4
1911	select HAVE_KERNEL_LZMA
1912	select HAVE_KERNEL_LZO
1913	select HAVE_KERNEL_XZ
1914
1915config SYS_SUPPORTS_ZBOOT_UART16550
1916	bool
1917	select SYS_SUPPORTS_ZBOOT
1918
1919config SYS_SUPPORTS_ZBOOT_UART_PROM
1920	bool
1921	select SYS_SUPPORTS_ZBOOT
1922
1923config CPU_LOONGSON2EF
1924	bool
1925	select CPU_SUPPORTS_32BIT_KERNEL
1926	select CPU_SUPPORTS_64BIT_KERNEL
1927	select CPU_SUPPORTS_HIGHMEM
1928	select CPU_SUPPORTS_HUGEPAGES
1929	select ARCH_HAS_PHYS_TO_DMA
1930	select CPU_HAS_LOAD_STORE_LR
1931
1932config CPU_LOONGSON32
1933	bool
1934	select CPU_MIPS32
1935	select CPU_MIPSR2
1936	select CPU_HAS_PREFETCH
1937	select CPU_HAS_LOAD_STORE_LR
1938	select CPU_SUPPORTS_32BIT_KERNEL
1939	select CPU_SUPPORTS_HIGHMEM
1940	select CPU_SUPPORTS_CPUFREQ
1941
1942config CPU_BMIPS32_3300
1943	select SMP_UP if SMP
1944	bool
1945
1946config CPU_BMIPS4350
1947	bool
1948	select SYS_SUPPORTS_SMP
1949	select SYS_SUPPORTS_HOTPLUG_CPU
1950
1951config CPU_BMIPS4380
1952	bool
1953	select MIPS_L1_CACHE_SHIFT_6
1954	select SYS_SUPPORTS_SMP
1955	select SYS_SUPPORTS_HOTPLUG_CPU
1956	select CPU_HAS_RIXI
1957
1958config CPU_BMIPS5000
1959	bool
1960	select MIPS_CPU_SCACHE
1961	select MIPS_L1_CACHE_SHIFT_7
1962	select SYS_SUPPORTS_SMP
1963	select SYS_SUPPORTS_HOTPLUG_CPU
1964	select CPU_HAS_RIXI
1965
1966config SYS_HAS_CPU_LOONGSON64
1967	bool
1968	select CPU_SUPPORTS_CPUFREQ
1969	select CPU_HAS_RIXI
1970
1971config SYS_HAS_CPU_LOONGSON2E
1972	bool
1973
1974config SYS_HAS_CPU_LOONGSON2F
1975	bool
1976	select CPU_SUPPORTS_CPUFREQ
1977	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1978
1979config SYS_HAS_CPU_LOONGSON1B
1980	bool
1981
1982config SYS_HAS_CPU_LOONGSON1C
1983	bool
1984
1985config SYS_HAS_CPU_MIPS32_R1
1986	bool
1987
1988config SYS_HAS_CPU_MIPS32_R2
1989	bool
1990
1991config SYS_HAS_CPU_MIPS32_R3_5
1992	bool
1993
1994config SYS_HAS_CPU_MIPS32_R5
1995	bool
1996	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1997
1998config SYS_HAS_CPU_MIPS32_R6
1999	bool
2000	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2001
2002config SYS_HAS_CPU_MIPS64_R1
2003	bool
2004
2005config SYS_HAS_CPU_MIPS64_R2
2006	bool
2007
2008config SYS_HAS_CPU_MIPS64_R6
2009	bool
2010	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2011
2012config SYS_HAS_CPU_R3000
2013	bool
2014
2015config SYS_HAS_CPU_TX39XX
2016	bool
2017
2018config SYS_HAS_CPU_VR41XX
2019	bool
2020
2021config SYS_HAS_CPU_R4X00
2022	bool
2023
2024config SYS_HAS_CPU_TX49XX
2025	bool
2026
2027config SYS_HAS_CPU_R5000
2028	bool
2029
2030config SYS_HAS_CPU_R5500
2031	bool
2032
2033config SYS_HAS_CPU_NEVADA
2034	bool
2035
2036config SYS_HAS_CPU_R10000
2037	bool
2038	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2039
2040config SYS_HAS_CPU_RM7000
2041	bool
2042
2043config SYS_HAS_CPU_SB1
2044	bool
2045
2046config SYS_HAS_CPU_CAVIUM_OCTEON
2047	bool
2048
2049config SYS_HAS_CPU_BMIPS
2050	bool
2051
2052config SYS_HAS_CPU_BMIPS32_3300
2053	bool
2054	select SYS_HAS_CPU_BMIPS
2055
2056config SYS_HAS_CPU_BMIPS4350
2057	bool
2058	select SYS_HAS_CPU_BMIPS
2059
2060config SYS_HAS_CPU_BMIPS4380
2061	bool
2062	select SYS_HAS_CPU_BMIPS
2063
2064config SYS_HAS_CPU_BMIPS5000
2065	bool
2066	select SYS_HAS_CPU_BMIPS
2067	select ARCH_HAS_SYNC_DMA_FOR_CPU
2068
2069config SYS_HAS_CPU_XLR
2070	bool
2071
2072config SYS_HAS_CPU_XLP
2073	bool
2074
2075#
2076# CPU may reorder R->R, R->W, W->R, W->W
2077# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2078#
2079config WEAK_ORDERING
2080	bool
2081
2082#
2083# CPU may reorder reads and writes beyond LL/SC
2084# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2085#
2086config WEAK_REORDERING_BEYOND_LLSC
2087	bool
2088endmenu
2089
2090#
2091# These two indicate any level of the MIPS32 and MIPS64 architecture
2092#
2093config CPU_MIPS32
2094	bool
2095	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2096
2097config CPU_MIPS64
2098	bool
2099	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2100
2101#
2102# These indicate the revision of the architecture
2103#
2104config CPU_MIPSR1
2105	bool
2106	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2107
2108config CPU_MIPSR2
2109	bool
2110	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2111	select CPU_HAS_RIXI
2112	select MIPS_SPRAM
2113
2114config CPU_MIPSR6
2115	bool
2116	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2117	select CPU_HAS_RIXI
2118	select HAVE_ARCH_BITREVERSE
2119	select MIPS_ASID_BITS_VARIABLE
2120	select MIPS_CRC_SUPPORT
2121	select MIPS_SPRAM
2122
2123config TARGET_ISA_REV
2124	int
2125	default 1 if CPU_MIPSR1
2126	default 2 if CPU_MIPSR2
2127	default 6 if CPU_MIPSR6
2128	default 0
2129	help
2130	  Reflects the ISA revision being targeted by the kernel build. This
2131	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2132
2133config EVA
2134	bool
2135
2136config XPA
2137	bool
2138
2139config SYS_SUPPORTS_32BIT_KERNEL
2140	bool
2141config SYS_SUPPORTS_64BIT_KERNEL
2142	bool
2143config CPU_SUPPORTS_32BIT_KERNEL
2144	bool
2145config CPU_SUPPORTS_64BIT_KERNEL
2146	bool
2147config CPU_SUPPORTS_CPUFREQ
2148	bool
2149config CPU_SUPPORTS_ADDRWINCFG
2150	bool
2151config CPU_SUPPORTS_HUGEPAGES
2152	bool
2153	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2154config MIPS_PGD_C0_CONTEXT
2155	bool
2156	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2157
2158#
2159# Set to y for ptrace access to watch registers.
2160#
2161config HARDWARE_WATCHPOINTS
2162	bool
2163	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2164
2165menu "Kernel type"
2166
2167choice
2168	prompt "Kernel code model"
2169	help
2170	  You should only select this option if you have a workload that
2171	  actually benefits from 64-bit processing or if your machine has
2172	  large memory.  You will only be presented a single option in this
2173	  menu if your system does not support both 32-bit and 64-bit kernels.
2174
2175config 32BIT
2176	bool "32-bit kernel"
2177	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2178	select TRAD_SIGNALS
2179	help
2180	  Select this option if you want to build a 32-bit kernel.
2181
2182config 64BIT
2183	bool "64-bit kernel"
2184	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2185	help
2186	  Select this option if you want to build a 64-bit kernel.
2187
2188endchoice
2189
2190config KVM_GUEST
2191	bool "KVM Guest Kernel"
2192	depends on BROKEN_ON_SMP
2193	help
2194	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2195	  mode.
2196
2197config KVM_GUEST_TIMER_FREQ
2198	int "Count/Compare Timer Frequency (MHz)"
2199	depends on KVM_GUEST
2200	default 100
2201	help
2202	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2203	  emulation when determining guest CPU Frequency. Instead, the guest's
2204	  timer frequency is specified directly.
2205
2206config MIPS_VA_BITS_48
2207	bool "48 bits virtual memory"
2208	depends on 64BIT
2209	help
2210	  Support a maximum at least 48 bits of application virtual
2211	  memory.  Default is 40 bits or less, depending on the CPU.
2212	  For page sizes 16k and above, this option results in a small
2213	  memory overhead for page tables.  For 4k page size, a fourth
2214	  level of page tables is added which imposes both a memory
2215	  overhead as well as slower TLB fault handling.
2216
2217	  If unsure, say N.
2218
2219choice
2220	prompt "Kernel page size"
2221	default PAGE_SIZE_4KB
2222
2223config PAGE_SIZE_4KB
2224	bool "4kB"
2225	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2226	help
2227	  This option select the standard 4kB Linux page size.  On some
2228	  R3000-family processors this is the only available page size.  Using
2229	  4kB page size will minimize memory consumption and is therefore
2230	  recommended for low memory systems.
2231
2232config PAGE_SIZE_8KB
2233	bool "8kB"
2234	depends on CPU_CAVIUM_OCTEON
2235	depends on !MIPS_VA_BITS_48
2236	help
2237	  Using 8kB page size will result in higher performance kernel at
2238	  the price of higher memory consumption.  This option is available
2239	  only on cnMIPS processors.  Note that you will need a suitable Linux
2240	  distribution to support this.
2241
2242config PAGE_SIZE_16KB
2243	bool "16kB"
2244	depends on !CPU_R3000 && !CPU_TX39XX
2245	help
2246	  Using 16kB page size will result in higher performance kernel at
2247	  the price of higher memory consumption.  This option is available on
2248	  all non-R3000 family processors.  Note that you will need a suitable
2249	  Linux distribution to support this.
2250
2251config PAGE_SIZE_32KB
2252	bool "32kB"
2253	depends on CPU_CAVIUM_OCTEON
2254	depends on !MIPS_VA_BITS_48
2255	help
2256	  Using 32kB page size will result in higher performance kernel at
2257	  the price of higher memory consumption.  This option is available
2258	  only on cnMIPS cores.  Note that you will need a suitable Linux
2259	  distribution to support this.
2260
2261config PAGE_SIZE_64KB
2262	bool "64kB"
2263	depends on !CPU_R3000 && !CPU_TX39XX
2264	help
2265	  Using 64kB page size will result in higher performance kernel at
2266	  the price of higher memory consumption.  This option is available on
2267	  all non-R3000 family processor.  Not that at the time of this
2268	  writing this option is still high experimental.
2269
2270endchoice
2271
2272config FORCE_MAX_ZONEORDER
2273	int "Maximum zone order"
2274	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2275	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2276	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2277	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2278	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2279	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2280	range 11 64
2281	default "11"
2282	help
2283	  The kernel memory allocator divides physically contiguous memory
2284	  blocks into "zones", where each zone is a power of two number of
2285	  pages.  This option selects the largest power of two that the kernel
2286	  keeps in the memory allocator.  If you need to allocate very large
2287	  blocks of physically contiguous memory, then you may need to
2288	  increase this value.
2289
2290	  This config option is actually maximum order plus one. For example,
2291	  a value of 11 means that the largest free memory block is 2^10 pages.
2292
2293	  The page size is not necessarily 4KB.  Keep this in mind
2294	  when choosing a value for this option.
2295
2296config BOARD_SCACHE
2297	bool
2298
2299config IP22_CPU_SCACHE
2300	bool
2301	select BOARD_SCACHE
2302
2303#
2304# Support for a MIPS32 / MIPS64 style S-caches
2305#
2306config MIPS_CPU_SCACHE
2307	bool
2308	select BOARD_SCACHE
2309
2310config R5000_CPU_SCACHE
2311	bool
2312	select BOARD_SCACHE
2313
2314config RM7000_CPU_SCACHE
2315	bool
2316	select BOARD_SCACHE
2317
2318config SIBYTE_DMA_PAGEOPS
2319	bool "Use DMA to clear/copy pages"
2320	depends on CPU_SB1
2321	help
2322	  Instead of using the CPU to zero and copy pages, use a Data Mover
2323	  channel.  These DMA channels are otherwise unused by the standard
2324	  SiByte Linux port.  Seems to give a small performance benefit.
2325
2326config CPU_HAS_PREFETCH
2327	bool
2328
2329config CPU_GENERIC_DUMP_TLB
2330	bool
2331	default y if !(CPU_R3000 || CPU_TX39XX)
2332
2333config MIPS_FP_SUPPORT
2334	bool "Floating Point support" if EXPERT
2335	default y
2336	help
2337	  Select y to include support for floating point in the kernel
2338	  including initialization of FPU hardware, FP context save & restore
2339	  and emulation of an FPU where necessary. Without this support any
2340	  userland program attempting to use floating point instructions will
2341	  receive a SIGILL.
2342
2343	  If you know that your userland will not attempt to use floating point
2344	  instructions then you can say n here to shrink the kernel a little.
2345
2346	  If unsure, say y.
2347
2348config CPU_R2300_FPU
2349	bool
2350	depends on MIPS_FP_SUPPORT
2351	default y if CPU_R3000 || CPU_TX39XX
2352
2353config CPU_R3K_TLB
2354	bool
2355
2356config CPU_R4K_FPU
2357	bool
2358	depends on MIPS_FP_SUPPORT
2359	default y if !CPU_R2300_FPU
2360
2361config CPU_R4K_CACHE_TLB
2362	bool
2363	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2364
2365config MIPS_MT_SMP
2366	bool "MIPS MT SMP support (1 TC on each available VPE)"
2367	default y
2368	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2369	select CPU_MIPSR2_IRQ_VI
2370	select CPU_MIPSR2_IRQ_EI
2371	select SYNC_R4K
2372	select MIPS_MT
2373	select SMP
2374	select SMP_UP
2375	select SYS_SUPPORTS_SMP
2376	select SYS_SUPPORTS_SCHED_SMT
2377	select MIPS_PERF_SHARED_TC_COUNTERS
2378	help
2379	  This is a kernel model which is known as SMVP. This is supported
2380	  on cores with the MT ASE and uses the available VPEs to implement
2381	  virtual processors which supports SMP. This is equivalent to the
2382	  Intel Hyperthreading feature. For further information go to
2383	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2384
2385config MIPS_MT
2386	bool
2387
2388config SCHED_SMT
2389	bool "SMT (multithreading) scheduler support"
2390	depends on SYS_SUPPORTS_SCHED_SMT
2391	default n
2392	help
2393	  SMT scheduler support improves the CPU scheduler's decision making
2394	  when dealing with MIPS MT enabled cores at a cost of slightly
2395	  increased overhead in some places. If unsure say N here.
2396
2397config SYS_SUPPORTS_SCHED_SMT
2398	bool
2399
2400config SYS_SUPPORTS_MULTITHREADING
2401	bool
2402
2403config MIPS_MT_FPAFF
2404	bool "Dynamic FPU affinity for FP-intensive threads"
2405	default y
2406	depends on MIPS_MT_SMP
2407
2408config MIPSR2_TO_R6_EMULATOR
2409	bool "MIPS R2-to-R6 emulator"
2410	depends on CPU_MIPSR6
2411	depends on MIPS_FP_SUPPORT
2412	default y
2413	help
2414	  Choose this option if you want to run non-R6 MIPS userland code.
2415	  Even if you say 'Y' here, the emulator will still be disabled by
2416	  default. You can enable it using the 'mipsr2emu' kernel option.
2417	  The only reason this is a build-time option is to save ~14K from the
2418	  final kernel image.
2419
2420config SYS_SUPPORTS_VPE_LOADER
2421	bool
2422	depends on SYS_SUPPORTS_MULTITHREADING
2423	help
2424	  Indicates that the platform supports the VPE loader, and provides
2425	  physical_memsize.
2426
2427config MIPS_VPE_LOADER
2428	bool "VPE loader support."
2429	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2430	select CPU_MIPSR2_IRQ_VI
2431	select CPU_MIPSR2_IRQ_EI
2432	select MIPS_MT
2433	help
2434	  Includes a loader for loading an elf relocatable object
2435	  onto another VPE and running it.
2436
2437config MIPS_VPE_LOADER_CMP
2438	bool
2439	default "y"
2440	depends on MIPS_VPE_LOADER && MIPS_CMP
2441
2442config MIPS_VPE_LOADER_MT
2443	bool
2444	default "y"
2445	depends on MIPS_VPE_LOADER && !MIPS_CMP
2446
2447config MIPS_VPE_LOADER_TOM
2448	bool "Load VPE program into memory hidden from linux"
2449	depends on MIPS_VPE_LOADER
2450	default y
2451	help
2452	  The loader can use memory that is present but has been hidden from
2453	  Linux using the kernel command line option "mem=xxMB". It's up to
2454	  you to ensure the amount you put in the option and the space your
2455	  program requires is less or equal to the amount physically present.
2456
2457config MIPS_VPE_APSP_API
2458	bool "Enable support for AP/SP API (RTLX)"
2459	depends on MIPS_VPE_LOADER
2460
2461config MIPS_VPE_APSP_API_CMP
2462	bool
2463	default "y"
2464	depends on MIPS_VPE_APSP_API && MIPS_CMP
2465
2466config MIPS_VPE_APSP_API_MT
2467	bool
2468	default "y"
2469	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2470
2471config MIPS_CMP
2472	bool "MIPS CMP framework support (DEPRECATED)"
2473	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2474	select SMP
2475	select SYNC_R4K
2476	select SYS_SUPPORTS_SMP
2477	select WEAK_ORDERING
2478	default n
2479	help
2480	  Select this if you are using a bootloader which implements the "CMP
2481	  framework" protocol (ie. YAMON) and want your kernel to make use of
2482	  its ability to start secondary CPUs.
2483
2484	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2485	  instead of this.
2486
2487config MIPS_CPS
2488	bool "MIPS Coherent Processing System support"
2489	depends on SYS_SUPPORTS_MIPS_CPS
2490	select MIPS_CM
2491	select MIPS_CPS_PM if HOTPLUG_CPU
2492	select SMP
2493	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2494	select SYS_SUPPORTS_HOTPLUG_CPU
2495	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2496	select SYS_SUPPORTS_SMP
2497	select WEAK_ORDERING
2498	help
2499	  Select this if you wish to run an SMP kernel across multiple cores
2500	  within a MIPS Coherent Processing System. When this option is
2501	  enabled the kernel will probe for other cores and boot them with
2502	  no external assistance. It is safe to enable this when hardware
2503	  support is unavailable.
2504
2505config MIPS_CPS_PM
2506	depends on MIPS_CPS
2507	bool
2508
2509config MIPS_CM
2510	bool
2511	select MIPS_CPC
2512
2513config MIPS_CPC
2514	bool
2515
2516config SB1_PASS_2_WORKAROUNDS
2517	bool
2518	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2519	default y
2520
2521config SB1_PASS_2_1_WORKAROUNDS
2522	bool
2523	depends on CPU_SB1 && CPU_SB1_PASS_2
2524	default y
2525
2526choice
2527	prompt "SmartMIPS or microMIPS ASE support"
2528
2529config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2530	bool "None"
2531	help
2532	  Select this if you want neither microMIPS nor SmartMIPS support
2533
2534config CPU_HAS_SMARTMIPS
2535	depends on SYS_SUPPORTS_SMARTMIPS
2536	bool "SmartMIPS"
2537	help
2538	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2539	  increased security at both hardware and software level for
2540	  smartcards.  Enabling this option will allow proper use of the
2541	  SmartMIPS instructions by Linux applications.  However a kernel with
2542	  this option will not work on a MIPS core without SmartMIPS core.  If
2543	  you don't know you probably don't have SmartMIPS and should say N
2544	  here.
2545
2546config CPU_MICROMIPS
2547	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2548	bool "microMIPS"
2549	help
2550	  When this option is enabled the kernel will be built using the
2551	  microMIPS ISA
2552
2553endchoice
2554
2555config CPU_HAS_MSA
2556	bool "Support for the MIPS SIMD Architecture"
2557	depends on CPU_SUPPORTS_MSA
2558	depends on MIPS_FP_SUPPORT
2559	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2560	help
2561	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2562	  and a set of SIMD instructions to operate on them. When this option
2563	  is enabled the kernel will support allocating & switching MSA
2564	  vector register contexts. If you know that your kernel will only be
2565	  running on CPUs which do not support MSA or that your userland will
2566	  not be making use of it then you may wish to say N here to reduce
2567	  the size & complexity of your kernel.
2568
2569	  If unsure, say Y.
2570
2571config CPU_HAS_WB
2572	bool
2573
2574config XKS01
2575	bool
2576
2577config CPU_HAS_RIXI
2578	bool
2579
2580config CPU_HAS_LOAD_STORE_LR
2581	bool
2582	help
2583	  CPU has support for unaligned load and store instructions:
2584	  LWL, LWR, SWL, SWR (Load/store word left/right).
2585	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2586
2587#
2588# Vectored interrupt mode is an R2 feature
2589#
2590config CPU_MIPSR2_IRQ_VI
2591	bool
2592
2593#
2594# Extended interrupt mode is an R2 feature
2595#
2596config CPU_MIPSR2_IRQ_EI
2597	bool
2598
2599config CPU_HAS_SYNC
2600	bool
2601	depends on !CPU_R3000
2602	default y
2603
2604#
2605# CPU non-features
2606#
2607config CPU_DADDI_WORKAROUNDS
2608	bool
2609
2610config CPU_R4000_WORKAROUNDS
2611	bool
2612	select CPU_R4400_WORKAROUNDS
2613
2614config CPU_R4400_WORKAROUNDS
2615	bool
2616
2617config CPU_R4X00_BUGS64
2618	bool
2619	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2620
2621config MIPS_ASID_SHIFT
2622	int
2623	default 6 if CPU_R3000 || CPU_TX39XX
2624	default 0
2625
2626config MIPS_ASID_BITS
2627	int
2628	default 0 if MIPS_ASID_BITS_VARIABLE
2629	default 6 if CPU_R3000 || CPU_TX39XX
2630	default 8
2631
2632config MIPS_ASID_BITS_VARIABLE
2633	bool
2634
2635config MIPS_CRC_SUPPORT
2636	bool
2637
2638#
2639# - Highmem only makes sense for the 32-bit kernel.
2640# - The current highmem code will only work properly on physically indexed
2641#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2642#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2643#   moment we protect the user and offer the highmem option only on machines
2644#   where it's known to be safe.  This will not offer highmem on a few systems
2645#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2646#   indexed CPUs but we're playing safe.
2647# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2648#   know they might have memory configurations that could make use of highmem
2649#   support.
2650#
2651config HIGHMEM
2652	bool "High Memory Support"
2653	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2654
2655config CPU_SUPPORTS_HIGHMEM
2656	bool
2657
2658config SYS_SUPPORTS_HIGHMEM
2659	bool
2660
2661config SYS_SUPPORTS_SMARTMIPS
2662	bool
2663
2664config SYS_SUPPORTS_MICROMIPS
2665	bool
2666
2667config SYS_SUPPORTS_MIPS16
2668	bool
2669	help
2670	  This option must be set if a kernel might be executed on a MIPS16-
2671	  enabled CPU even if MIPS16 is not actually being used.  In other
2672	  words, it makes the kernel MIPS16-tolerant.
2673
2674config CPU_SUPPORTS_MSA
2675	bool
2676
2677config ARCH_FLATMEM_ENABLE
2678	def_bool y
2679	depends on !NUMA && !CPU_LOONGSON2EF
2680
2681config ARCH_SPARSEMEM_ENABLE
2682	bool
2683	select SPARSEMEM_STATIC if !SGI_IP27
2684
2685config NUMA
2686	bool "NUMA Support"
2687	depends on SYS_SUPPORTS_NUMA
2688	help
2689	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2690	  Access).  This option improves performance on systems with more
2691	  than two nodes; on two node systems it is generally better to
2692	  leave it disabled; on single node systems disable this option
2693	  disabled.
2694
2695config SYS_SUPPORTS_NUMA
2696	bool
2697
2698config RELOCATABLE
2699	bool "Relocatable kernel"
2700	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2701	help
2702	  This builds a kernel image that retains relocation information
2703	  so it can be loaded someplace besides the default 1MB.
2704	  The relocations make the kernel binary about 15% larger,
2705	  but are discarded at runtime
2706
2707config RELOCATION_TABLE_SIZE
2708	hex "Relocation table size"
2709	depends on RELOCATABLE
2710	range 0x0 0x01000000
2711	default "0x00100000"
2712	---help---
2713	  A table of relocation data will be appended to the kernel binary
2714	  and parsed at boot to fix up the relocated kernel.
2715
2716	  This option allows the amount of space reserved for the table to be
2717	  adjusted, although the default of 1Mb should be ok in most cases.
2718
2719	  The build will fail and a valid size suggested if this is too small.
2720
2721	  If unsure, leave at the default value.
2722
2723config RANDOMIZE_BASE
2724	bool "Randomize the address of the kernel image"
2725	depends on RELOCATABLE
2726	---help---
2727	  Randomizes the physical and virtual address at which the
2728	  kernel image is loaded, as a security feature that
2729	  deters exploit attempts relying on knowledge of the location
2730	  of kernel internals.
2731
2732	  Entropy is generated using any coprocessor 0 registers available.
2733
2734	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2735
2736	  If unsure, say N.
2737
2738config RANDOMIZE_BASE_MAX_OFFSET
2739	hex "Maximum kASLR offset" if EXPERT
2740	depends on RANDOMIZE_BASE
2741	range 0x0 0x40000000 if EVA || 64BIT
2742	range 0x0 0x08000000
2743	default "0x01000000"
2744	---help---
2745	  When kASLR is active, this provides the maximum offset that will
2746	  be applied to the kernel image. It should be set according to the
2747	  amount of physical RAM available in the target system minus
2748	  PHYSICAL_START and must be a power of 2.
2749
2750	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2751	  EVA or 64-bit. The default is 16Mb.
2752
2753config NODES_SHIFT
2754	int
2755	default "6"
2756	depends on NEED_MULTIPLE_NODES
2757
2758config HW_PERF_EVENTS
2759	bool "Enable hardware performance counter support for perf events"
2760	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2761	default y
2762	help
2763	  Enable hardware performance counter support for perf events. If
2764	  disabled, perf events will use software events only.
2765
2766config SMP
2767	bool "Multi-Processing support"
2768	depends on SYS_SUPPORTS_SMP
2769	help
2770	  This enables support for systems with more than one CPU. If you have
2771	  a system with only one CPU, say N. If you have a system with more
2772	  than one CPU, say Y.
2773
2774	  If you say N here, the kernel will run on uni- and multiprocessor
2775	  machines, but will use only one CPU of a multiprocessor machine. If
2776	  you say Y here, the kernel will run on many, but not all,
2777	  uniprocessor machines. On a uniprocessor machine, the kernel
2778	  will run faster if you say N here.
2779
2780	  People using multiprocessor machines who say Y here should also say
2781	  Y to "Enhanced Real Time Clock Support", below.
2782
2783	  See also the SMP-HOWTO available at
2784	  <http://www.tldp.org/docs.html#howto>.
2785
2786	  If you don't know what to do here, say N.
2787
2788config HOTPLUG_CPU
2789	bool "Support for hot-pluggable CPUs"
2790	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2791	help
2792	  Say Y here to allow turning CPUs off and on. CPUs can be
2793	  controlled through /sys/devices/system/cpu.
2794	  (Note: power management support will enable this option
2795	    automatically on SMP systems. )
2796	  Say N if you want to disable CPU hotplug.
2797
2798config SMP_UP
2799	bool
2800
2801config SYS_SUPPORTS_MIPS_CMP
2802	bool
2803
2804config SYS_SUPPORTS_MIPS_CPS
2805	bool
2806
2807config SYS_SUPPORTS_SMP
2808	bool
2809
2810config NR_CPUS_DEFAULT_4
2811	bool
2812
2813config NR_CPUS_DEFAULT_8
2814	bool
2815
2816config NR_CPUS_DEFAULT_16
2817	bool
2818
2819config NR_CPUS_DEFAULT_32
2820	bool
2821
2822config NR_CPUS_DEFAULT_64
2823	bool
2824
2825config NR_CPUS
2826	int "Maximum number of CPUs (2-256)"
2827	range 2 256
2828	depends on SMP
2829	default "4" if NR_CPUS_DEFAULT_4
2830	default "8" if NR_CPUS_DEFAULT_8
2831	default "16" if NR_CPUS_DEFAULT_16
2832	default "32" if NR_CPUS_DEFAULT_32
2833	default "64" if NR_CPUS_DEFAULT_64
2834	help
2835	  This allows you to specify the maximum number of CPUs which this
2836	  kernel will support.  The maximum supported value is 32 for 32-bit
2837	  kernel and 64 for 64-bit kernels; the minimum value which makes
2838	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2839	  and 2 for all others.
2840
2841	  This is purely to save memory - each supported CPU adds
2842	  approximately eight kilobytes to the kernel image.  For best
2843	  performance should round up your number of processors to the next
2844	  power of two.
2845
2846config MIPS_PERF_SHARED_TC_COUNTERS
2847	bool
2848
2849config MIPS_NR_CPU_NR_MAP_1024
2850	bool
2851
2852config MIPS_NR_CPU_NR_MAP
2853	int
2854	depends on SMP
2855	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2856	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2857
2858#
2859# Timer Interrupt Frequency Configuration
2860#
2861
2862choice
2863	prompt "Timer frequency"
2864	default HZ_250
2865	help
2866	  Allows the configuration of the timer frequency.
2867
2868	config HZ_24
2869		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2870
2871	config HZ_48
2872		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2873
2874	config HZ_100
2875		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2876
2877	config HZ_128
2878		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2879
2880	config HZ_250
2881		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2882
2883	config HZ_256
2884		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2885
2886	config HZ_1000
2887		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2888
2889	config HZ_1024
2890		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2891
2892endchoice
2893
2894config SYS_SUPPORTS_24HZ
2895	bool
2896
2897config SYS_SUPPORTS_48HZ
2898	bool
2899
2900config SYS_SUPPORTS_100HZ
2901	bool
2902
2903config SYS_SUPPORTS_128HZ
2904	bool
2905
2906config SYS_SUPPORTS_250HZ
2907	bool
2908
2909config SYS_SUPPORTS_256HZ
2910	bool
2911
2912config SYS_SUPPORTS_1000HZ
2913	bool
2914
2915config SYS_SUPPORTS_1024HZ
2916	bool
2917
2918config SYS_SUPPORTS_ARBIT_HZ
2919	bool
2920	default y if !SYS_SUPPORTS_24HZ && \
2921		     !SYS_SUPPORTS_48HZ && \
2922		     !SYS_SUPPORTS_100HZ && \
2923		     !SYS_SUPPORTS_128HZ && \
2924		     !SYS_SUPPORTS_250HZ && \
2925		     !SYS_SUPPORTS_256HZ && \
2926		     !SYS_SUPPORTS_1000HZ && \
2927		     !SYS_SUPPORTS_1024HZ
2928
2929config HZ
2930	int
2931	default 24 if HZ_24
2932	default 48 if HZ_48
2933	default 100 if HZ_100
2934	default 128 if HZ_128
2935	default 250 if HZ_250
2936	default 256 if HZ_256
2937	default 1000 if HZ_1000
2938	default 1024 if HZ_1024
2939
2940config SCHED_HRTICK
2941	def_bool HIGH_RES_TIMERS
2942
2943config KEXEC
2944	bool "Kexec system call"
2945	select KEXEC_CORE
2946	help
2947	  kexec is a system call that implements the ability to shutdown your
2948	  current kernel, and to start another kernel.  It is like a reboot
2949	  but it is independent of the system firmware.   And like a reboot
2950	  you can start any kernel with it, not just Linux.
2951
2952	  The name comes from the similarity to the exec system call.
2953
2954	  It is an ongoing process to be certain the hardware in a machine
2955	  is properly shutdown, so do not be surprised if this code does not
2956	  initially work for you.  As of this writing the exact hardware
2957	  interface is strongly in flux, so no good recommendation can be
2958	  made.
2959
2960config CRASH_DUMP
2961	bool "Kernel crash dumps"
2962	help
2963	  Generate crash dump after being started by kexec.
2964	  This should be normally only set in special crash dump kernels
2965	  which are loaded in the main kernel with kexec-tools into
2966	  a specially reserved region and then later executed after
2967	  a crash by kdump/kexec. The crash dump kernel must be compiled
2968	  to a memory address not used by the main kernel or firmware using
2969	  PHYSICAL_START.
2970
2971config PHYSICAL_START
2972	hex "Physical address where the kernel is loaded"
2973	default "0xffffffff84000000"
2974	depends on CRASH_DUMP
2975	help
2976	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2977	  If you plan to use kernel for capturing the crash dump change
2978	  this value to start of the reserved region (the "X" value as
2979	  specified in the "crashkernel=YM@XM" command line boot parameter
2980	  passed to the panic-ed kernel).
2981
2982config SECCOMP
2983	bool "Enable seccomp to safely compute untrusted bytecode"
2984	depends on PROC_FS
2985	default y
2986	help
2987	  This kernel feature is useful for number crunching applications
2988	  that may need to compute untrusted bytecode during their
2989	  execution. By using pipes or other transports made available to
2990	  the process as file descriptors supporting the read/write
2991	  syscalls, it's possible to isolate those applications in
2992	  their own address space using seccomp. Once seccomp is
2993	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2994	  and the task is only allowed to execute a few safe syscalls
2995	  defined by each seccomp mode.
2996
2997	  If unsure, say Y. Only embedded should say N here.
2998
2999config MIPS_O32_FP64_SUPPORT
3000	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3001	depends on 32BIT || MIPS32_O32
3002	help
3003	  When this is enabled, the kernel will support use of 64-bit floating
3004	  point registers with binaries using the O32 ABI along with the
3005	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3006	  32-bit MIPS systems this support is at the cost of increasing the
3007	  size and complexity of the compiled FPU emulator. Thus if you are
3008	  running a MIPS32 system and know that none of your userland binaries
3009	  will require 64-bit floating point, you may wish to reduce the size
3010	  of your kernel & potentially improve FP emulation performance by
3011	  saying N here.
3012
3013	  Although binutils currently supports use of this flag the details
3014	  concerning its effect upon the O32 ABI in userland are still being
3015	  worked on. In order to avoid userland becoming dependant upon current
3016	  behaviour before the details have been finalised, this option should
3017	  be considered experimental and only enabled by those working upon
3018	  said details.
3019
3020	  If unsure, say N.
3021
3022config USE_OF
3023	bool
3024	select OF
3025	select OF_EARLY_FLATTREE
3026	select IRQ_DOMAIN
3027
3028config UHI_BOOT
3029	bool
3030
3031config BUILTIN_DTB
3032	bool
3033
3034choice
3035	prompt "Kernel appended dtb support" if USE_OF
3036	default MIPS_NO_APPENDED_DTB
3037
3038	config MIPS_NO_APPENDED_DTB
3039		bool "None"
3040		help
3041		  Do not enable appended dtb support.
3042
3043	config MIPS_ELF_APPENDED_DTB
3044		bool "vmlinux"
3045		help
3046		  With this option, the boot code will look for a device tree binary
3047		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3048		  it is empty and the DTB can be appended using binutils command
3049		  objcopy:
3050
3051		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3052
3053		  This is meant as a backward compatiblity convenience for those
3054		  systems with a bootloader that can't be upgraded to accommodate
3055		  the documented boot protocol using a device tree.
3056
3057	config MIPS_RAW_APPENDED_DTB
3058		bool "vmlinux.bin or vmlinuz.bin"
3059		help
3060		  With this option, the boot code will look for a device tree binary
3061		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3062		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3063
3064		  This is meant as a backward compatibility convenience for those
3065		  systems with a bootloader that can't be upgraded to accommodate
3066		  the documented boot protocol using a device tree.
3067
3068		  Beware that there is very little in terms of protection against
3069		  this option being confused by leftover garbage in memory that might
3070		  look like a DTB header after a reboot if no actual DTB is appended
3071		  to vmlinux.bin.  Do not leave this option active in a production kernel
3072		  if you don't intend to always append a DTB.
3073endchoice
3074
3075choice
3076	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3077	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3078					 !MIPS_MALTA && \
3079					 !CAVIUM_OCTEON_SOC
3080	default MIPS_CMDLINE_FROM_BOOTLOADER
3081
3082	config MIPS_CMDLINE_FROM_DTB
3083		depends on USE_OF
3084		bool "Dtb kernel arguments if available"
3085
3086	config MIPS_CMDLINE_DTB_EXTEND
3087		depends on USE_OF
3088		bool "Extend dtb kernel arguments with bootloader arguments"
3089
3090	config MIPS_CMDLINE_FROM_BOOTLOADER
3091		bool "Bootloader kernel arguments if available"
3092
3093	config MIPS_CMDLINE_BUILTIN_EXTEND
3094		depends on CMDLINE_BOOL
3095		bool "Extend builtin kernel arguments with bootloader arguments"
3096endchoice
3097
3098endmenu
3099
3100config LOCKDEP_SUPPORT
3101	bool
3102	default y
3103
3104config STACKTRACE_SUPPORT
3105	bool
3106	default y
3107
3108config PGTABLE_LEVELS
3109	int
3110	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3111	default 3 if 64BIT && !PAGE_SIZE_64KB
3112	default 2
3113
3114config MIPS_AUTO_PFN_OFFSET
3115	bool
3116
3117menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3118
3119config PCI_DRIVERS_GENERIC
3120	select PCI_DOMAINS_GENERIC if PCI
3121	bool
3122
3123config PCI_DRIVERS_LEGACY
3124	def_bool !PCI_DRIVERS_GENERIC
3125	select NO_GENERIC_PCI_IOPORT_MAP
3126	select PCI_DOMAINS if PCI
3127
3128#
3129# ISA support is now enabled via select.  Too many systems still have the one
3130# or other ISA chip on the board that users don't know about so don't expect
3131# users to choose the right thing ...
3132#
3133config ISA
3134	bool
3135
3136config TC
3137	bool "TURBOchannel support"
3138	depends on MACH_DECSTATION
3139	help
3140	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3141	  processors.  TURBOchannel programming specifications are available
3142	  at:
3143	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3144	  and:
3145	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3146	  Linux driver support status is documented at:
3147	  <http://www.linux-mips.org/wiki/DECstation>
3148
3149config MMU
3150	bool
3151	default y
3152
3153config ARCH_MMAP_RND_BITS_MIN
3154	default 12 if 64BIT
3155	default 8
3156
3157config ARCH_MMAP_RND_BITS_MAX
3158	default 18 if 64BIT
3159	default 15
3160
3161config ARCH_MMAP_RND_COMPAT_BITS_MIN
3162	default 8
3163
3164config ARCH_MMAP_RND_COMPAT_BITS_MAX
3165	default 15
3166
3167config I8253
3168	bool
3169	select CLKSRC_I8253
3170	select CLKEVT_I8253
3171	select MIPS_EXTERNAL_TIMER
3172
3173config ZONE_DMA
3174	bool
3175
3176config ZONE_DMA32
3177	bool
3178
3179endmenu
3180
3181config TRAD_SIGNALS
3182	bool
3183
3184config MIPS32_COMPAT
3185	bool
3186
3187config COMPAT
3188	bool
3189
3190config SYSVIPC_COMPAT
3191	bool
3192
3193config MIPS32_O32
3194	bool "Kernel support for o32 binaries"
3195	depends on 64BIT
3196	select ARCH_WANT_OLD_COMPAT_IPC
3197	select COMPAT
3198	select MIPS32_COMPAT
3199	select SYSVIPC_COMPAT if SYSVIPC
3200	help
3201	  Select this option if you want to run o32 binaries.  These are pure
3202	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3203	  existing binaries are in this format.
3204
3205	  If unsure, say Y.
3206
3207config MIPS32_N32
3208	bool "Kernel support for n32 binaries"
3209	depends on 64BIT
3210	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3211	select COMPAT
3212	select MIPS32_COMPAT
3213	select SYSVIPC_COMPAT if SYSVIPC
3214	help
3215	  Select this option if you want to run n32 binaries.  These are
3216	  64-bit binaries using 32-bit quantities for addressing and certain
3217	  data that would normally be 64-bit.  They are used in special
3218	  cases.
3219
3220	  If unsure, say N.
3221
3222config BINFMT_ELF32
3223	bool
3224	default y if MIPS32_O32 || MIPS32_N32
3225	select ELFCORE
3226
3227menu "Power management options"
3228
3229config ARCH_HIBERNATION_POSSIBLE
3230	def_bool y
3231	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3232
3233config ARCH_SUSPEND_POSSIBLE
3234	def_bool y
3235	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3236
3237source "kernel/power/Kconfig"
3238
3239endmenu
3240
3241config MIPS_EXTERNAL_TIMER
3242	bool
3243
3244menu "CPU Power Management"
3245
3246if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3247source "drivers/cpufreq/Kconfig"
3248endif
3249
3250source "drivers/cpuidle/Kconfig"
3251
3252endmenu
3253
3254source "drivers/firmware/Kconfig"
3255
3256source "arch/mips/kvm/Kconfig"
3257