xref: /linux/arch/mips/Kconfig (revision e27e1cc9d360a347dbd5a398e9df21cfb4e60e3c)
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_HAS_FORTIFY_SOURCE
8	select ARCH_HAS_KCOV
9	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
10	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
11	select ARCH_HAS_UBSAN_SANITIZE_ALL
12	select ARCH_SUPPORTS_UPROBES
13	select ARCH_USE_BUILTIN_BSWAP
14	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
15	select ARCH_USE_QUEUED_RWLOCKS
16	select ARCH_USE_QUEUED_SPINLOCKS
17	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
18	select ARCH_WANT_IPC_PARSE_VERSION
19	select BUILDTIME_TABLE_SORT
20	select CLONE_BACKWARDS
21	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
22	select CPU_PM if CPU_IDLE
23	select GENERIC_ATOMIC64 if !64BIT
24	select GENERIC_CLOCKEVENTS
25	select GENERIC_CMOS_UPDATE
26	select GENERIC_CPU_AUTOPROBE
27	select GENERIC_GETTIMEOFDAY
28	select GENERIC_IOMAP
29	select GENERIC_IRQ_PROBE
30	select GENERIC_IRQ_SHOW
31	select GENERIC_ISA_DMA if EISA
32	select GENERIC_LIB_ASHLDI3
33	select GENERIC_LIB_ASHRDI3
34	select GENERIC_LIB_CMPDI2
35	select GENERIC_LIB_LSHRDI3
36	select GENERIC_LIB_UCMPDI2
37	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
38	select GENERIC_SMP_IDLE_THREAD
39	select GENERIC_TIME_VSYSCALL
40	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
41	select HANDLE_DOMAIN_IRQ
42	select HAVE_ARCH_COMPILER_H
43	select HAVE_ARCH_JUMP_LABEL
44	select HAVE_ARCH_KGDB
45	select HAVE_ARCH_MMAP_RND_BITS if MMU
46	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
47	select HAVE_ARCH_SECCOMP_FILTER
48	select HAVE_ARCH_TRACEHOOK
49	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
50	select HAVE_ASM_MODVERSIONS
51	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
52	select HAVE_CONTEXT_TRACKING
53	select HAVE_TIF_NOHZ
54	select HAVE_COPY_THREAD_TLS
55	select HAVE_C_RECORDMCOUNT
56	select HAVE_DEBUG_KMEMLEAK
57	select HAVE_DEBUG_STACKOVERFLOW
58	select HAVE_DMA_CONTIGUOUS
59	select HAVE_DYNAMIC_FTRACE
60	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
61	select HAVE_EXIT_THREAD
62	select HAVE_FAST_GUP
63	select HAVE_FTRACE_MCOUNT_RECORD
64	select HAVE_FUNCTION_GRAPH_TRACER
65	select HAVE_FUNCTION_TRACER
66	select HAVE_GCC_PLUGINS
67	select HAVE_GENERIC_VDSO
68	select HAVE_IDE
69	select HAVE_IOREMAP_PROT
70	select HAVE_IRQ_EXIT_ON_IRQ_STACK
71	select HAVE_IRQ_TIME_ACCOUNTING
72	select HAVE_KPROBES
73	select HAVE_KRETPROBES
74	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
75	select HAVE_MOD_ARCH_SPECIFIC
76	select HAVE_NMI
77	select HAVE_OPROFILE
78	select HAVE_PERF_EVENTS
79	select HAVE_REGS_AND_STACK_ACCESS_API
80	select HAVE_RSEQ
81	select HAVE_SPARSE_SYSCALL_NR
82	select HAVE_STACKPROTECTOR
83	select HAVE_SYSCALL_TRACEPOINTS
84	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
85	select IRQ_FORCED_THREADING
86	select ISA if EISA
87	select MODULES_USE_ELF_REL if MODULES
88	select MODULES_USE_ELF_RELA if MODULES && 64BIT
89	select PERF_USE_VMALLOC
90	select RTC_LIB
91	select SYSCTL_EXCEPTION_TRACE
92	select VIRT_TO_BUS
93
94config MIPS_FIXUP_BIGPHYS_ADDR
95	bool
96
97menu "Machine selection"
98
99choice
100	prompt "System type"
101	default MIPS_GENERIC
102
103config MIPS_GENERIC
104	bool "Generic board-agnostic MIPS kernel"
105	select BOOT_RAW
106	select BUILTIN_DTB
107	select CEVT_R4K
108	select CLKSRC_MIPS_GIC
109	select COMMON_CLK
110	select CPU_MIPSR2_IRQ_EI
111	select CPU_MIPSR2_IRQ_VI
112	select CSRC_R4K
113	select DMA_PERDEV_COHERENT
114	select HAVE_PCI
115	select IRQ_MIPS_CPU
116	select MIPS_AUTO_PFN_OFFSET
117	select MIPS_CPU_SCACHE
118	select MIPS_GIC
119	select MIPS_L1_CACHE_SHIFT_7
120	select NO_EXCEPT_FILL
121	select PCI_DRIVERS_GENERIC
122	select SMP_UP if SMP
123	select SWAP_IO_SPACE
124	select SYS_HAS_CPU_MIPS32_R1
125	select SYS_HAS_CPU_MIPS32_R2
126	select SYS_HAS_CPU_MIPS32_R6
127	select SYS_HAS_CPU_MIPS64_R1
128	select SYS_HAS_CPU_MIPS64_R2
129	select SYS_HAS_CPU_MIPS64_R6
130	select SYS_SUPPORTS_32BIT_KERNEL
131	select SYS_SUPPORTS_64BIT_KERNEL
132	select SYS_SUPPORTS_BIG_ENDIAN
133	select SYS_SUPPORTS_HIGHMEM
134	select SYS_SUPPORTS_LITTLE_ENDIAN
135	select SYS_SUPPORTS_MICROMIPS
136	select SYS_SUPPORTS_MIPS16
137	select SYS_SUPPORTS_MIPS_CPS
138	select SYS_SUPPORTS_MULTITHREADING
139	select SYS_SUPPORTS_RELOCATABLE
140	select SYS_SUPPORTS_SMARTMIPS
141	select UHI_BOOT
142	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
143	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
144	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
145	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
146	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
147	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
148	select USE_OF
149	help
150	  Select this to build a kernel which aims to support multiple boards,
151	  generally using a flattened device tree passed from the bootloader
152	  using the boot protocol defined in the UHI (Unified Hosting
153	  Interface) specification.
154
155config MIPS_ALCHEMY
156	bool "Alchemy processor based machines"
157	select PHYS_ADDR_T_64BIT
158	select CEVT_R4K
159	select CSRC_R4K
160	select IRQ_MIPS_CPU
161	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
162	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
163	select SYS_HAS_CPU_MIPS32_R1
164	select SYS_SUPPORTS_32BIT_KERNEL
165	select SYS_SUPPORTS_APM_EMULATION
166	select GPIOLIB
167	select SYS_SUPPORTS_ZBOOT
168	select COMMON_CLK
169
170config AR7
171	bool "Texas Instruments AR7"
172	select BOOT_ELF32
173	select DMA_NONCOHERENT
174	select CEVT_R4K
175	select CSRC_R4K
176	select IRQ_MIPS_CPU
177	select NO_EXCEPT_FILL
178	select SWAP_IO_SPACE
179	select SYS_HAS_CPU_MIPS32_R1
180	select SYS_HAS_EARLY_PRINTK
181	select SYS_SUPPORTS_32BIT_KERNEL
182	select SYS_SUPPORTS_LITTLE_ENDIAN
183	select SYS_SUPPORTS_MIPS16
184	select SYS_SUPPORTS_ZBOOT_UART16550
185	select GPIOLIB
186	select VLYNQ
187	select HAVE_LEGACY_CLK
188	help
189	  Support for the Texas Instruments AR7 System-on-a-Chip
190	  family: TNETD7100, 7200 and 7300.
191
192config ATH25
193	bool "Atheros AR231x/AR531x SoC support"
194	select CEVT_R4K
195	select CSRC_R4K
196	select DMA_NONCOHERENT
197	select IRQ_MIPS_CPU
198	select IRQ_DOMAIN
199	select SYS_HAS_CPU_MIPS32_R1
200	select SYS_SUPPORTS_BIG_ENDIAN
201	select SYS_SUPPORTS_32BIT_KERNEL
202	select SYS_HAS_EARLY_PRINTK
203	help
204	  Support for Atheros AR231x and Atheros AR531x based boards
205
206config ATH79
207	bool "Atheros AR71XX/AR724X/AR913X based boards"
208	select ARCH_HAS_RESET_CONTROLLER
209	select BOOT_RAW
210	select CEVT_R4K
211	select CSRC_R4K
212	select DMA_NONCOHERENT
213	select GPIOLIB
214	select PINCTRL
215	select COMMON_CLK
216	select IRQ_MIPS_CPU
217	select SYS_HAS_CPU_MIPS32_R2
218	select SYS_HAS_EARLY_PRINTK
219	select SYS_SUPPORTS_32BIT_KERNEL
220	select SYS_SUPPORTS_BIG_ENDIAN
221	select SYS_SUPPORTS_MIPS16
222	select SYS_SUPPORTS_ZBOOT_UART_PROM
223	select USE_OF
224	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
225	help
226	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
227
228config BMIPS_GENERIC
229	bool "Broadcom Generic BMIPS kernel"
230	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
231	select ARCH_HAS_PHYS_TO_DMA
232	select BOOT_RAW
233	select NO_EXCEPT_FILL
234	select USE_OF
235	select CEVT_R4K
236	select CSRC_R4K
237	select SYNC_R4K
238	select COMMON_CLK
239	select BCM6345_L1_IRQ
240	select BCM7038_L1_IRQ
241	select BCM7120_L2_IRQ
242	select BRCMSTB_L2_IRQ
243	select IRQ_MIPS_CPU
244	select DMA_NONCOHERENT
245	select SYS_SUPPORTS_32BIT_KERNEL
246	select SYS_SUPPORTS_LITTLE_ENDIAN
247	select SYS_SUPPORTS_BIG_ENDIAN
248	select SYS_SUPPORTS_HIGHMEM
249	select SYS_HAS_CPU_BMIPS32_3300
250	select SYS_HAS_CPU_BMIPS4350
251	select SYS_HAS_CPU_BMIPS4380
252	select SYS_HAS_CPU_BMIPS5000
253	select SWAP_IO_SPACE
254	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
255	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
256	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
257	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
258	select HARDIRQS_SW_RESEND
259	help
260	  Build a generic DT-based kernel image that boots on select
261	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
262	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
263	  must be set appropriately for your board.
264
265config BCM47XX
266	bool "Broadcom BCM47XX based boards"
267	select BOOT_RAW
268	select CEVT_R4K
269	select CSRC_R4K
270	select DMA_NONCOHERENT
271	select HAVE_PCI
272	select IRQ_MIPS_CPU
273	select SYS_HAS_CPU_MIPS32_R1
274	select NO_EXCEPT_FILL
275	select SYS_SUPPORTS_32BIT_KERNEL
276	select SYS_SUPPORTS_LITTLE_ENDIAN
277	select SYS_SUPPORTS_MIPS16
278	select SYS_SUPPORTS_ZBOOT
279	select SYS_HAS_EARLY_PRINTK
280	select USE_GENERIC_EARLY_PRINTK_8250
281	select GPIOLIB
282	select LEDS_GPIO_REGISTER
283	select BCM47XX_NVRAM
284	select BCM47XX_SPROM
285	select BCM47XX_SSB if !BCM47XX_BCMA
286	help
287	  Support for BCM47XX based boards
288
289config BCM63XX
290	bool "Broadcom BCM63XX based boards"
291	select BOOT_RAW
292	select CEVT_R4K
293	select CSRC_R4K
294	select SYNC_R4K
295	select DMA_NONCOHERENT
296	select IRQ_MIPS_CPU
297	select SYS_SUPPORTS_32BIT_KERNEL
298	select SYS_SUPPORTS_BIG_ENDIAN
299	select SYS_HAS_EARLY_PRINTK
300	select SWAP_IO_SPACE
301	select GPIOLIB
302	select MIPS_L1_CACHE_SHIFT_4
303	select CLKDEV_LOOKUP
304	select HAVE_LEGACY_CLK
305	help
306	  Support for BCM63XX based boards
307
308config MIPS_COBALT
309	bool "Cobalt Server"
310	select CEVT_R4K
311	select CSRC_R4K
312	select CEVT_GT641XX
313	select DMA_NONCOHERENT
314	select FORCE_PCI
315	select I8253
316	select I8259
317	select IRQ_MIPS_CPU
318	select IRQ_GT641XX
319	select PCI_GT64XXX_PCI0
320	select SYS_HAS_CPU_NEVADA
321	select SYS_HAS_EARLY_PRINTK
322	select SYS_SUPPORTS_32BIT_KERNEL
323	select SYS_SUPPORTS_64BIT_KERNEL
324	select SYS_SUPPORTS_LITTLE_ENDIAN
325	select USE_GENERIC_EARLY_PRINTK_8250
326
327config MACH_DECSTATION
328	bool "DECstations"
329	select BOOT_ELF32
330	select CEVT_DS1287
331	select CEVT_R4K if CPU_R4X00
332	select CSRC_IOASIC
333	select CSRC_R4K if CPU_R4X00
334	select CPU_DADDI_WORKAROUNDS if 64BIT
335	select CPU_R4000_WORKAROUNDS if 64BIT
336	select CPU_R4400_WORKAROUNDS if 64BIT
337	select DMA_NONCOHERENT
338	select NO_IOPORT_MAP
339	select IRQ_MIPS_CPU
340	select SYS_HAS_CPU_R3000
341	select SYS_HAS_CPU_R4X00
342	select SYS_SUPPORTS_32BIT_KERNEL
343	select SYS_SUPPORTS_64BIT_KERNEL
344	select SYS_SUPPORTS_LITTLE_ENDIAN
345	select SYS_SUPPORTS_128HZ
346	select SYS_SUPPORTS_256HZ
347	select SYS_SUPPORTS_1024HZ
348	select MIPS_L1_CACHE_SHIFT_4
349	help
350	  This enables support for DEC's MIPS based workstations.  For details
351	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
352	  DECstation porting pages on <http://decstation.unix-ag.org/>.
353
354	  If you have one of the following DECstation Models you definitely
355	  want to choose R4xx0 for the CPU Type:
356
357		DECstation 5000/50
358		DECstation 5000/150
359		DECstation 5000/260
360		DECsystem 5900/260
361
362	  otherwise choose R3000.
363
364config MACH_JAZZ
365	bool "Jazz family of machines"
366	select ARC_MEMORY
367	select ARC_PROMLIB
368	select ARCH_MIGHT_HAVE_PC_PARPORT
369	select ARCH_MIGHT_HAVE_PC_SERIO
370	select FW_ARC
371	select FW_ARC32
372	select ARCH_MAY_HAVE_PC_FDC
373	select CEVT_R4K
374	select CSRC_R4K
375	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
376	select GENERIC_ISA_DMA
377	select HAVE_PCSPKR_PLATFORM
378	select IRQ_MIPS_CPU
379	select I8253
380	select I8259
381	select ISA
382	select SYS_HAS_CPU_R4X00
383	select SYS_SUPPORTS_32BIT_KERNEL
384	select SYS_SUPPORTS_64BIT_KERNEL
385	select SYS_SUPPORTS_100HZ
386	help
387	  This a family of machines based on the MIPS R4030 chipset which was
388	  used by several vendors to build RISC/os and Windows NT workstations.
389	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
390	  Olivetti M700-10 workstations.
391
392config MACH_INGENIC
393	bool "Ingenic SoC based machines"
394	select SYS_SUPPORTS_32BIT_KERNEL
395	select SYS_SUPPORTS_LITTLE_ENDIAN
396	select SYS_SUPPORTS_ZBOOT_UART16550
397	select CPU_SUPPORTS_HUGEPAGES
398	select DMA_NONCOHERENT
399	select IRQ_MIPS_CPU
400	select PINCTRL
401	select GPIOLIB
402	select COMMON_CLK
403	select GENERIC_IRQ_CHIP
404	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
405	select USE_OF
406
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 HAVE_LEGACY_CLK
426	select USE_OF
427	select PINCTRL
428	select PINCTRL_LANTIQ
429	select ARCH_HAS_RESET_CONTROLLER
430	select RESET_CONTROLLER
431
432config MACH_LOONGSON32
433	bool "Loongson 32-bit family of machines"
434	select SYS_SUPPORTS_ZBOOT
435	help
436	  This enables support for the Loongson-1 family of machines.
437
438	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
439	  the Institute of Computing Technology (ICT), Chinese Academy of
440	  Sciences (CAS).
441
442config MACH_LOONGSON2EF
443	bool "Loongson-2E/F family of machines"
444	select SYS_SUPPORTS_ZBOOT
445	help
446	  This enables the support of early Loongson-2E/F family of machines.
447
448config MACH_LOONGSON64
449	bool "Loongson 64-bit family of machines"
450	select ARCH_SPARSEMEM_ENABLE
451	select ARCH_MIGHT_HAVE_PC_PARPORT
452	select ARCH_MIGHT_HAVE_PC_SERIO
453	select GENERIC_ISA_DMA_SUPPORT_BROKEN
454	select BOOT_ELF32
455	select BOARD_SCACHE
456	select CSRC_R4K
457	select CEVT_R4K
458	select CPU_HAS_WB
459	select FORCE_PCI
460	select ISA
461	select I8259
462	select IRQ_MIPS_CPU
463	select NO_EXCEPT_FILL
464	select NR_CPUS_DEFAULT_64
465	select USE_GENERIC_EARLY_PRINTK_8250
466	select PCI_DRIVERS_GENERIC
467	select SYS_HAS_CPU_LOONGSON64
468	select SYS_HAS_EARLY_PRINTK
469	select SYS_SUPPORTS_SMP
470	select SYS_SUPPORTS_HOTPLUG_CPU
471	select SYS_SUPPORTS_NUMA
472	select SYS_SUPPORTS_64BIT_KERNEL
473	select SYS_SUPPORTS_HIGHMEM
474	select SYS_SUPPORTS_LITTLE_ENDIAN
475	select SYS_SUPPORTS_ZBOOT
476	select ZONE_DMA32
477	select NUMA
478	select COMMON_CLK
479	select USE_OF
480	select BUILTIN_DTB
481	help
482	  This enables the support of Loongson-2/3 family of machines.
483
484	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
485	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
486	  and Loongson-2F which will be removed), developed by the Institute
487	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
488
489config MACH_PISTACHIO
490	bool "IMG Pistachio SoC based boards"
491	select BOOT_ELF32
492	select BOOT_RAW
493	select CEVT_R4K
494	select CLKSRC_MIPS_GIC
495	select COMMON_CLK
496	select CSRC_R4K
497	select DMA_NONCOHERENT
498	select GPIOLIB
499	select IRQ_MIPS_CPU
500	select MFD_SYSCON
501	select MIPS_CPU_SCACHE
502	select MIPS_GIC
503	select PINCTRL
504	select REGULATOR
505	select SYS_HAS_CPU_MIPS32_R2
506	select SYS_SUPPORTS_32BIT_KERNEL
507	select SYS_SUPPORTS_LITTLE_ENDIAN
508	select SYS_SUPPORTS_MIPS_CPS
509	select SYS_SUPPORTS_MULTITHREADING
510	select SYS_SUPPORTS_RELOCATABLE
511	select SYS_SUPPORTS_ZBOOT
512	select SYS_HAS_EARLY_PRINTK
513	select USE_GENERIC_EARLY_PRINTK_8250
514	select USE_OF
515	help
516	  This enables support for the IMG Pistachio SoC platform.
517
518config MIPS_MALTA
519	bool "MIPS Malta board"
520	select ARCH_MAY_HAVE_PC_FDC
521	select ARCH_MIGHT_HAVE_PC_PARPORT
522	select ARCH_MIGHT_HAVE_PC_SERIO
523	select BOOT_ELF32
524	select BOOT_RAW
525	select BUILTIN_DTB
526	select CEVT_R4K
527	select CLKSRC_MIPS_GIC
528	select COMMON_CLK
529	select CSRC_R4K
530	select DMA_MAYBE_COHERENT
531	select GENERIC_ISA_DMA
532	select HAVE_PCSPKR_PLATFORM
533	select HAVE_PCI
534	select I8253
535	select I8259
536	select IRQ_MIPS_CPU
537	select MIPS_BONITO64
538	select MIPS_CPU_SCACHE
539	select MIPS_GIC
540	select MIPS_L1_CACHE_SHIFT_6
541	select MIPS_MSC
542	select PCI_GT64XXX_PCI0
543	select SMP_UP if SMP
544	select SWAP_IO_SPACE
545	select SYS_HAS_CPU_MIPS32_R1
546	select SYS_HAS_CPU_MIPS32_R2
547	select SYS_HAS_CPU_MIPS32_R3_5
548	select SYS_HAS_CPU_MIPS32_R5
549	select SYS_HAS_CPU_MIPS32_R6
550	select SYS_HAS_CPU_MIPS64_R1
551	select SYS_HAS_CPU_MIPS64_R2
552	select SYS_HAS_CPU_MIPS64_R6
553	select SYS_HAS_CPU_NEVADA
554	select SYS_HAS_CPU_RM7000
555	select SYS_SUPPORTS_32BIT_KERNEL
556	select SYS_SUPPORTS_64BIT_KERNEL
557	select SYS_SUPPORTS_BIG_ENDIAN
558	select SYS_SUPPORTS_HIGHMEM
559	select SYS_SUPPORTS_LITTLE_ENDIAN
560	select SYS_SUPPORTS_MICROMIPS
561	select SYS_SUPPORTS_MIPS16
562	select SYS_SUPPORTS_MIPS_CMP
563	select SYS_SUPPORTS_MIPS_CPS
564	select SYS_SUPPORTS_MULTITHREADING
565	select SYS_SUPPORTS_RELOCATABLE
566	select SYS_SUPPORTS_SMARTMIPS
567	select SYS_SUPPORTS_VPE_LOADER
568	select SYS_SUPPORTS_ZBOOT
569	select USE_OF
570	select ZONE_DMA32 if 64BIT
571	help
572	  This enables support for the MIPS Technologies Malta evaluation
573	  board.
574
575config MACH_PIC32
576	bool "Microchip PIC32 Family"
577	help
578	  This enables support for the Microchip PIC32 family of platforms.
579
580	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
581	  microcontrollers.
582
583config MACH_VR41XX
584	bool "NEC VR4100 series based machines"
585	select CEVT_R4K
586	select CSRC_R4K
587	select SYS_HAS_CPU_VR41XX
588	select SYS_SUPPORTS_MIPS16
589	select GPIOLIB
590
591config NXP_STB220
592	bool "NXP STB220 board"
593	select SOC_PNX833X
594	help
595	  Support for NXP Semiconductors STB220 Development Board.
596
597config NXP_STB225
598	bool "NXP 225 board"
599	select SOC_PNX833X
600	select SOC_PNX8335
601	help
602	  Support for NXP Semiconductors STB225 Development Board.
603
604config RALINK
605	bool "Ralink based machines"
606	select CEVT_R4K
607	select CSRC_R4K
608	select BOOT_RAW
609	select DMA_NONCOHERENT
610	select IRQ_MIPS_CPU
611	select USE_OF
612	select SYS_HAS_CPU_MIPS32_R1
613	select SYS_HAS_CPU_MIPS32_R2
614	select SYS_SUPPORTS_32BIT_KERNEL
615	select SYS_SUPPORTS_LITTLE_ENDIAN
616	select SYS_SUPPORTS_MIPS16
617	select SYS_HAS_EARLY_PRINTK
618	select CLKDEV_LOOKUP
619	select ARCH_HAS_RESET_CONTROLLER
620	select RESET_CONTROLLER
621
622config SGI_IP22
623	bool "SGI IP22 (Indy/Indigo2)"
624	select ARC_MEMORY
625	select ARC_PROMLIB
626	select FW_ARC
627	select FW_ARC32
628	select ARCH_MIGHT_HAVE_PC_SERIO
629	select BOOT_ELF32
630	select CEVT_R4K
631	select CSRC_R4K
632	select DEFAULT_SGI_PARTITION
633	select DMA_NONCOHERENT
634	select HAVE_EISA
635	select I8253
636	select I8259
637	select IP22_CPU_SCACHE
638	select IRQ_MIPS_CPU
639	select GENERIC_ISA_DMA_SUPPORT_BROKEN
640	select SGI_HAS_I8042
641	select SGI_HAS_INDYDOG
642	select SGI_HAS_HAL2
643	select SGI_HAS_SEEQ
644	select SGI_HAS_WD93
645	select SGI_HAS_ZILOG
646	select SWAP_IO_SPACE
647	select SYS_HAS_CPU_R4X00
648	select SYS_HAS_CPU_R5000
649	select SYS_HAS_EARLY_PRINTK
650	select SYS_SUPPORTS_32BIT_KERNEL
651	select SYS_SUPPORTS_64BIT_KERNEL
652	select SYS_SUPPORTS_BIG_ENDIAN
653	select MIPS_L1_CACHE_SHIFT_7
654	help
655	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
656	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
657	  that runs on these, say Y here.
658
659config SGI_IP27
660	bool "SGI IP27 (Origin200/2000)"
661	select ARCH_HAS_PHYS_TO_DMA
662	select ARCH_SPARSEMEM_ENABLE
663	select FW_ARC
664	select FW_ARC64
665	select ARC_CMDLINE_ONLY
666	select BOOT_ELF64
667	select DEFAULT_SGI_PARTITION
668	select SYS_HAS_EARLY_PRINTK
669	select HAVE_PCI
670	select IRQ_MIPS_CPU
671	select IRQ_DOMAIN_HIERARCHY
672	select NR_CPUS_DEFAULT_64
673	select PCI_DRIVERS_GENERIC
674	select PCI_XTALK_BRIDGE
675	select SYS_HAS_CPU_R10000
676	select SYS_SUPPORTS_64BIT_KERNEL
677	select SYS_SUPPORTS_BIG_ENDIAN
678	select SYS_SUPPORTS_NUMA
679	select SYS_SUPPORTS_SMP
680	select MIPS_L1_CACHE_SHIFT_7
681	help
682	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
683	  workstations.  To compile a Linux kernel that runs on these, say Y
684	  here.
685
686config SGI_IP28
687	bool "SGI IP28 (Indigo2 R10k)"
688	select ARC_MEMORY
689	select ARC_PROMLIB
690	select FW_ARC
691	select FW_ARC64
692	select ARCH_MIGHT_HAVE_PC_SERIO
693	select BOOT_ELF64
694	select CEVT_R4K
695	select CSRC_R4K
696	select DEFAULT_SGI_PARTITION
697	select DMA_NONCOHERENT
698	select GENERIC_ISA_DMA_SUPPORT_BROKEN
699	select IRQ_MIPS_CPU
700	select HAVE_EISA
701	select I8253
702	select I8259
703	select SGI_HAS_I8042
704	select SGI_HAS_INDYDOG
705	select SGI_HAS_HAL2
706	select SGI_HAS_SEEQ
707	select SGI_HAS_WD93
708	select SGI_HAS_ZILOG
709	select SWAP_IO_SPACE
710	select SYS_HAS_CPU_R10000
711	select SYS_HAS_EARLY_PRINTK
712	select SYS_SUPPORTS_64BIT_KERNEL
713	select SYS_SUPPORTS_BIG_ENDIAN
714	select MIPS_L1_CACHE_SHIFT_7
715	help
716	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
717	  kernel that runs on these, say Y here.
718
719config SGI_IP30
720	bool "SGI IP30 (Octane/Octane2)"
721	select ARCH_HAS_PHYS_TO_DMA
722	select FW_ARC
723	select FW_ARC64
724	select BOOT_ELF64
725	select CEVT_R4K
726	select CSRC_R4K
727	select SYNC_R4K if SMP
728	select ZONE_DMA32
729	select HAVE_PCI
730	select IRQ_MIPS_CPU
731	select IRQ_DOMAIN_HIERARCHY
732	select NR_CPUS_DEFAULT_2
733	select PCI_DRIVERS_GENERIC
734	select PCI_XTALK_BRIDGE
735	select SYS_HAS_EARLY_PRINTK
736	select SYS_HAS_CPU_R10000
737	select SYS_SUPPORTS_64BIT_KERNEL
738	select SYS_SUPPORTS_BIG_ENDIAN
739	select SYS_SUPPORTS_SMP
740	select MIPS_L1_CACHE_SHIFT_7
741	select ARC_MEMORY
742	help
743	  These are the SGI Octane and Octane2 graphics workstations.  To
744	  compile a Linux kernel that runs on these, say Y here.
745
746config SGI_IP32
747	bool "SGI IP32 (O2)"
748	select ARC_MEMORY
749	select ARC_PROMLIB
750	select ARCH_HAS_PHYS_TO_DMA
751	select FW_ARC
752	select FW_ARC32
753	select BOOT_ELF32
754	select CEVT_R4K
755	select CSRC_R4K
756	select DMA_NONCOHERENT
757	select HAVE_PCI
758	select IRQ_MIPS_CPU
759	select R5000_CPU_SCACHE
760	select RM7000_CPU_SCACHE
761	select SYS_HAS_CPU_R5000
762	select SYS_HAS_CPU_R10000 if BROKEN
763	select SYS_HAS_CPU_RM7000
764	select SYS_HAS_CPU_NEVADA
765	select SYS_SUPPORTS_64BIT_KERNEL
766	select SYS_SUPPORTS_BIG_ENDIAN
767	help
768	  If you want this kernel to run on SGI O2 workstation, say Y here.
769
770config SIBYTE_CRHINE
771	bool "Sibyte BCM91120C-CRhine"
772	select BOOT_ELF32
773	select SIBYTE_BCM1120
774	select SWAP_IO_SPACE
775	select SYS_HAS_CPU_SB1
776	select SYS_SUPPORTS_BIG_ENDIAN
777	select SYS_SUPPORTS_LITTLE_ENDIAN
778
779config SIBYTE_CARMEL
780	bool "Sibyte BCM91120x-Carmel"
781	select BOOT_ELF32
782	select SIBYTE_BCM1120
783	select SWAP_IO_SPACE
784	select SYS_HAS_CPU_SB1
785	select SYS_SUPPORTS_BIG_ENDIAN
786	select SYS_SUPPORTS_LITTLE_ENDIAN
787
788config SIBYTE_CRHONE
789	bool "Sibyte BCM91125C-CRhone"
790	select BOOT_ELF32
791	select SIBYTE_BCM1125
792	select SWAP_IO_SPACE
793	select SYS_HAS_CPU_SB1
794	select SYS_SUPPORTS_BIG_ENDIAN
795	select SYS_SUPPORTS_HIGHMEM
796	select SYS_SUPPORTS_LITTLE_ENDIAN
797
798config SIBYTE_RHONE
799	bool "Sibyte BCM91125E-Rhone"
800	select BOOT_ELF32
801	select SIBYTE_BCM1125H
802	select SWAP_IO_SPACE
803	select SYS_HAS_CPU_SB1
804	select SYS_SUPPORTS_BIG_ENDIAN
805	select SYS_SUPPORTS_LITTLE_ENDIAN
806
807config SIBYTE_SWARM
808	bool "Sibyte BCM91250A-SWARM"
809	select BOOT_ELF32
810	select HAVE_PATA_PLATFORM
811	select SIBYTE_SB1250
812	select SWAP_IO_SPACE
813	select SYS_HAS_CPU_SB1
814	select SYS_SUPPORTS_BIG_ENDIAN
815	select SYS_SUPPORTS_HIGHMEM
816	select SYS_SUPPORTS_LITTLE_ENDIAN
817	select ZONE_DMA32 if 64BIT
818	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
819
820config SIBYTE_LITTLESUR
821	bool "Sibyte BCM91250C2-LittleSur"
822	select BOOT_ELF32
823	select HAVE_PATA_PLATFORM
824	select SIBYTE_SB1250
825	select SWAP_IO_SPACE
826	select SYS_HAS_CPU_SB1
827	select SYS_SUPPORTS_BIG_ENDIAN
828	select SYS_SUPPORTS_HIGHMEM
829	select SYS_SUPPORTS_LITTLE_ENDIAN
830	select ZONE_DMA32 if 64BIT
831
832config SIBYTE_SENTOSA
833	bool "Sibyte BCM91250E-Sentosa"
834	select BOOT_ELF32
835	select SIBYTE_SB1250
836	select SWAP_IO_SPACE
837	select SYS_HAS_CPU_SB1
838	select SYS_SUPPORTS_BIG_ENDIAN
839	select SYS_SUPPORTS_LITTLE_ENDIAN
840	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
841
842config SIBYTE_BIGSUR
843	bool "Sibyte BCM91480B-BigSur"
844	select BOOT_ELF32
845	select NR_CPUS_DEFAULT_4
846	select SIBYTE_BCM1x80
847	select SWAP_IO_SPACE
848	select SYS_HAS_CPU_SB1
849	select SYS_SUPPORTS_BIG_ENDIAN
850	select SYS_SUPPORTS_HIGHMEM
851	select SYS_SUPPORTS_LITTLE_ENDIAN
852	select ZONE_DMA32 if 64BIT
853	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
854
855config SNI_RM
856	bool "SNI RM200/300/400"
857	select ARC_MEMORY
858	select ARC_PROMLIB
859	select FW_ARC if CPU_LITTLE_ENDIAN
860	select FW_ARC32 if CPU_LITTLE_ENDIAN
861	select FW_SNIPROM if CPU_BIG_ENDIAN
862	select ARCH_MAY_HAVE_PC_FDC
863	select ARCH_MIGHT_HAVE_PC_PARPORT
864	select ARCH_MIGHT_HAVE_PC_SERIO
865	select BOOT_ELF32
866	select CEVT_R4K
867	select CSRC_R4K
868	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
869	select DMA_NONCOHERENT
870	select GENERIC_ISA_DMA
871	select HAVE_EISA
872	select HAVE_PCSPKR_PLATFORM
873	select HAVE_PCI
874	select IRQ_MIPS_CPU
875	select I8253
876	select I8259
877	select ISA
878	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
879	select SYS_HAS_CPU_R4X00
880	select SYS_HAS_CPU_R5000
881	select SYS_HAS_CPU_R10000
882	select R5000_CPU_SCACHE
883	select SYS_HAS_EARLY_PRINTK
884	select SYS_SUPPORTS_32BIT_KERNEL
885	select SYS_SUPPORTS_64BIT_KERNEL
886	select SYS_SUPPORTS_BIG_ENDIAN
887	select SYS_SUPPORTS_HIGHMEM
888	select SYS_SUPPORTS_LITTLE_ENDIAN
889	help
890	  The SNI RM200/300/400 are MIPS-based machines manufactured by
891	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
892	  Technology and now in turn merged with Fujitsu.  Say Y here to
893	  support this machine type.
894
895config MACH_TX39XX
896	bool "Toshiba TX39 series based machines"
897
898config MACH_TX49XX
899	bool "Toshiba TX49 series based machines"
900
901config MIKROTIK_RB532
902	bool "Mikrotik RB532 boards"
903	select CEVT_R4K
904	select CSRC_R4K
905	select DMA_NONCOHERENT
906	select HAVE_PCI
907	select IRQ_MIPS_CPU
908	select SYS_HAS_CPU_MIPS32_R1
909	select SYS_SUPPORTS_32BIT_KERNEL
910	select SYS_SUPPORTS_LITTLE_ENDIAN
911	select SWAP_IO_SPACE
912	select BOOT_RAW
913	select GPIOLIB
914	select MIPS_L1_CACHE_SHIFT_4
915	help
916	  Support the Mikrotik(tm) RouterBoard 532 series,
917	  based on the IDT RC32434 SoC.
918
919config CAVIUM_OCTEON_SOC
920	bool "Cavium Networks Octeon SoC based boards"
921	select CEVT_R4K
922	select ARCH_HAS_PHYS_TO_DMA
923	select HAVE_RAPIDIO
924	select PHYS_ADDR_T_64BIT
925	select SYS_SUPPORTS_64BIT_KERNEL
926	select SYS_SUPPORTS_BIG_ENDIAN
927	select EDAC_SUPPORT
928	select EDAC_ATOMIC_SCRUB
929	select SYS_SUPPORTS_LITTLE_ENDIAN
930	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
931	select SYS_HAS_EARLY_PRINTK
932	select SYS_HAS_CPU_CAVIUM_OCTEON
933	select HAVE_PCI
934	select HAVE_PLAT_DELAY
935	select HAVE_PLAT_FW_INIT_CMDLINE
936	select HAVE_PLAT_MEMCPY
937	select ZONE_DMA32
938	select HOLES_IN_ZONE
939	select GPIOLIB
940	select USE_OF
941	select ARCH_SPARSEMEM_ENABLE
942	select SYS_SUPPORTS_SMP
943	select NR_CPUS_DEFAULT_64
944	select MIPS_NR_CPU_NR_MAP_1024
945	select BUILTIN_DTB
946	select MTD_COMPLEX_MAPPINGS
947	select SWIOTLB
948	select SYS_SUPPORTS_RELOCATABLE
949	help
950	  This option supports all of the Octeon reference boards from Cavium
951	  Networks. It builds a kernel that dynamically determines the Octeon
952	  CPU type and supports all known board reference implementations.
953	  Some of the supported boards are:
954		EBT3000
955		EBH3000
956		EBH3100
957		Thunder
958		Kodama
959		Hikari
960	  Say Y here for most Octeon reference boards.
961
962config NLM_XLR_BOARD
963	bool "Netlogic XLR/XLS based systems"
964	select BOOT_ELF32
965	select NLM_COMMON
966	select SYS_HAS_CPU_XLR
967	select SYS_SUPPORTS_SMP
968	select HAVE_PCI
969	select SWAP_IO_SPACE
970	select SYS_SUPPORTS_32BIT_KERNEL
971	select SYS_SUPPORTS_64BIT_KERNEL
972	select PHYS_ADDR_T_64BIT
973	select SYS_SUPPORTS_BIG_ENDIAN
974	select SYS_SUPPORTS_HIGHMEM
975	select NR_CPUS_DEFAULT_32
976	select CEVT_R4K
977	select CSRC_R4K
978	select IRQ_MIPS_CPU
979	select ZONE_DMA32 if 64BIT
980	select SYNC_R4K
981	select SYS_HAS_EARLY_PRINTK
982	select SYS_SUPPORTS_ZBOOT
983	select SYS_SUPPORTS_ZBOOT_UART16550
984	help
985	  Support for systems based on Netlogic XLR and XLS processors.
986	  Say Y here if you have a XLR or XLS based board.
987
988config NLM_XLP_BOARD
989	bool "Netlogic XLP based systems"
990	select BOOT_ELF32
991	select NLM_COMMON
992	select SYS_HAS_CPU_XLP
993	select SYS_SUPPORTS_SMP
994	select HAVE_PCI
995	select SYS_SUPPORTS_32BIT_KERNEL
996	select SYS_SUPPORTS_64BIT_KERNEL
997	select PHYS_ADDR_T_64BIT
998	select GPIOLIB
999	select SYS_SUPPORTS_BIG_ENDIAN
1000	select SYS_SUPPORTS_LITTLE_ENDIAN
1001	select SYS_SUPPORTS_HIGHMEM
1002	select NR_CPUS_DEFAULT_32
1003	select CEVT_R4K
1004	select CSRC_R4K
1005	select IRQ_MIPS_CPU
1006	select ZONE_DMA32 if 64BIT
1007	select SYNC_R4K
1008	select SYS_HAS_EARLY_PRINTK
1009	select USE_OF
1010	select SYS_SUPPORTS_ZBOOT
1011	select SYS_SUPPORTS_ZBOOT_UART16550
1012	help
1013	  This board is based on Netlogic XLP Processor.
1014	  Say Y here if you have a XLP based board.
1015
1016endchoice
1017
1018source "arch/mips/alchemy/Kconfig"
1019source "arch/mips/ath25/Kconfig"
1020source "arch/mips/ath79/Kconfig"
1021source "arch/mips/bcm47xx/Kconfig"
1022source "arch/mips/bcm63xx/Kconfig"
1023source "arch/mips/bmips/Kconfig"
1024source "arch/mips/generic/Kconfig"
1025source "arch/mips/jazz/Kconfig"
1026source "arch/mips/jz4740/Kconfig"
1027source "arch/mips/lantiq/Kconfig"
1028source "arch/mips/pic32/Kconfig"
1029source "arch/mips/pistachio/Kconfig"
1030source "arch/mips/ralink/Kconfig"
1031source "arch/mips/sgi-ip27/Kconfig"
1032source "arch/mips/sibyte/Kconfig"
1033source "arch/mips/txx9/Kconfig"
1034source "arch/mips/vr41xx/Kconfig"
1035source "arch/mips/cavium-octeon/Kconfig"
1036source "arch/mips/loongson2ef/Kconfig"
1037source "arch/mips/loongson32/Kconfig"
1038source "arch/mips/loongson64/Kconfig"
1039source "arch/mips/netlogic/Kconfig"
1040
1041endmenu
1042
1043config GENERIC_HWEIGHT
1044	bool
1045	default y
1046
1047config GENERIC_CALIBRATE_DELAY
1048	bool
1049	default y
1050
1051config SCHED_OMIT_FRAME_POINTER
1052	bool
1053	default y
1054
1055#
1056# Select some configuration options automatically based on user selections.
1057#
1058config FW_ARC
1059	bool
1060
1061config ARCH_MAY_HAVE_PC_FDC
1062	bool
1063
1064config BOOT_RAW
1065	bool
1066
1067config CEVT_BCM1480
1068	bool
1069
1070config CEVT_DS1287
1071	bool
1072
1073config CEVT_GT641XX
1074	bool
1075
1076config CEVT_R4K
1077	bool
1078
1079config CEVT_SB1250
1080	bool
1081
1082config CEVT_TXX9
1083	bool
1084
1085config CSRC_BCM1480
1086	bool
1087
1088config CSRC_IOASIC
1089	bool
1090
1091config CSRC_R4K
1092	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1093	bool
1094
1095config CSRC_SB1250
1096	bool
1097
1098config MIPS_CLOCK_VSYSCALL
1099	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1100
1101config GPIO_TXX9
1102	select GPIOLIB
1103	bool
1104
1105config FW_CFE
1106	bool
1107
1108config ARCH_SUPPORTS_UPROBES
1109	bool
1110
1111config DMA_MAYBE_COHERENT
1112	select ARCH_HAS_DMA_COHERENCE_H
1113	select DMA_NONCOHERENT
1114	bool
1115
1116config DMA_PERDEV_COHERENT
1117	bool
1118	select ARCH_HAS_SETUP_DMA_OPS
1119	select DMA_NONCOHERENT
1120
1121config DMA_NONCOHERENT
1122	bool
1123	#
1124	# MIPS allows mixing "slightly different" Cacheability and Coherency
1125	# Attribute bits.  It is believed that the uncached access through
1126	# KSEG1 and the implementation specific "uncached accelerated" used
1127	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1128	# significant advantages.
1129	#
1130	select ARCH_HAS_DMA_WRITE_COMBINE
1131	select ARCH_HAS_DMA_PREP_COHERENT
1132	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1133	select ARCH_HAS_DMA_SET_UNCACHED
1134	select DMA_NONCOHERENT_MMAP
1135	select DMA_NONCOHERENT_CACHE_SYNC
1136	select NEED_DMA_MAP_STATE
1137
1138config SYS_HAS_EARLY_PRINTK
1139	bool
1140
1141config SYS_SUPPORTS_HOTPLUG_CPU
1142	bool
1143
1144config MIPS_BONITO64
1145	bool
1146
1147config MIPS_MSC
1148	bool
1149
1150config SYNC_R4K
1151	bool
1152
1153config MIPS_MACHINE
1154	def_bool n
1155
1156config NO_IOPORT_MAP
1157	def_bool n
1158
1159config GENERIC_CSUM
1160	def_bool CPU_NO_LOAD_STORE_LR
1161
1162config GENERIC_ISA_DMA
1163	bool
1164	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1165	select ISA_DMA_API
1166
1167config GENERIC_ISA_DMA_SUPPORT_BROKEN
1168	bool
1169	select GENERIC_ISA_DMA
1170
1171config HAVE_PLAT_DELAY
1172	bool
1173
1174config HAVE_PLAT_FW_INIT_CMDLINE
1175	bool
1176
1177config HAVE_PLAT_MEMCPY
1178	bool
1179
1180config ISA_DMA_API
1181	bool
1182
1183config HOLES_IN_ZONE
1184	bool
1185
1186config SYS_SUPPORTS_RELOCATABLE
1187	bool
1188	help
1189	  Selected if the platform supports relocating the kernel.
1190	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1191	  to allow access to command line and entropy sources.
1192
1193config MIPS_CBPF_JIT
1194	def_bool y
1195	depends on BPF_JIT && HAVE_CBPF_JIT
1196
1197config MIPS_EBPF_JIT
1198	def_bool y
1199	depends on BPF_JIT && HAVE_EBPF_JIT
1200
1201
1202#
1203# Endianness selection.  Sufficiently obscure so many users don't know what to
1204# answer,so we try hard to limit the available choices.  Also the use of a
1205# choice statement should be more obvious to the user.
1206#
1207choice
1208	prompt "Endianness selection"
1209	help
1210	  Some MIPS machines can be configured for either little or big endian
1211	  byte order. These modes require different kernels and a different
1212	  Linux distribution.  In general there is one preferred byteorder for a
1213	  particular system but some systems are just as commonly used in the
1214	  one or the other endianness.
1215
1216config CPU_BIG_ENDIAN
1217	bool "Big endian"
1218	depends on SYS_SUPPORTS_BIG_ENDIAN
1219
1220config CPU_LITTLE_ENDIAN
1221	bool "Little endian"
1222	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1223
1224endchoice
1225
1226config EXPORT_UASM
1227	bool
1228
1229config SYS_SUPPORTS_APM_EMULATION
1230	bool
1231
1232config SYS_SUPPORTS_BIG_ENDIAN
1233	bool
1234
1235config SYS_SUPPORTS_LITTLE_ENDIAN
1236	bool
1237
1238config SYS_SUPPORTS_HUGETLBFS
1239	bool
1240	depends on CPU_SUPPORTS_HUGEPAGES
1241	default y
1242
1243config MIPS_HUGE_TLB_SUPPORT
1244	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1245
1246config IRQ_CPU_RM7K
1247	bool
1248
1249config IRQ_MSP_SLP
1250	bool
1251
1252config IRQ_MSP_CIC
1253	bool
1254
1255config IRQ_TXX9
1256	bool
1257
1258config IRQ_GT641XX
1259	bool
1260
1261config PCI_GT64XXX_PCI0
1262	bool
1263
1264config PCI_XTALK_BRIDGE
1265	bool
1266
1267config NO_EXCEPT_FILL
1268	bool
1269
1270config SOC_PNX833X
1271	bool
1272	select CEVT_R4K
1273	select CSRC_R4K
1274	select IRQ_MIPS_CPU
1275	select DMA_NONCOHERENT
1276	select SYS_HAS_CPU_MIPS32_R2
1277	select SYS_SUPPORTS_32BIT_KERNEL
1278	select SYS_SUPPORTS_LITTLE_ENDIAN
1279	select SYS_SUPPORTS_BIG_ENDIAN
1280	select SYS_SUPPORTS_MIPS16
1281	select CPU_MIPSR2_IRQ_VI
1282
1283config SOC_PNX8335
1284	bool
1285	select SOC_PNX833X
1286
1287config MIPS_SPRAM
1288	bool
1289
1290config SWAP_IO_SPACE
1291	bool
1292
1293config SGI_HAS_INDYDOG
1294	bool
1295
1296config SGI_HAS_HAL2
1297	bool
1298
1299config SGI_HAS_SEEQ
1300	bool
1301
1302config SGI_HAS_WD93
1303	bool
1304
1305config SGI_HAS_ZILOG
1306	bool
1307
1308config SGI_HAS_I8042
1309	bool
1310
1311config DEFAULT_SGI_PARTITION
1312	bool
1313
1314config FW_ARC32
1315	bool
1316
1317config FW_SNIPROM
1318	bool
1319
1320config BOOT_ELF32
1321	bool
1322
1323config MIPS_L1_CACHE_SHIFT_4
1324	bool
1325
1326config MIPS_L1_CACHE_SHIFT_5
1327	bool
1328
1329config MIPS_L1_CACHE_SHIFT_6
1330	bool
1331
1332config MIPS_L1_CACHE_SHIFT_7
1333	bool
1334
1335config MIPS_L1_CACHE_SHIFT
1336	int
1337	default "7" if MIPS_L1_CACHE_SHIFT_7
1338	default "6" if MIPS_L1_CACHE_SHIFT_6
1339	default "5" if MIPS_L1_CACHE_SHIFT_5
1340	default "4" if MIPS_L1_CACHE_SHIFT_4
1341	default "5"
1342
1343config ARC_CMDLINE_ONLY
1344	bool
1345
1346config ARC_CONSOLE
1347	bool "ARC console support"
1348	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1349
1350config ARC_MEMORY
1351	bool
1352
1353config ARC_PROMLIB
1354	bool
1355
1356config FW_ARC64
1357	bool
1358
1359config BOOT_ELF64
1360	bool
1361
1362menu "CPU selection"
1363
1364choice
1365	prompt "CPU type"
1366	default CPU_R4X00
1367
1368config CPU_LOONGSON64
1369	bool "Loongson 64-bit CPU"
1370	depends on SYS_HAS_CPU_LOONGSON64
1371	select ARCH_HAS_PHYS_TO_DMA
1372	select CPU_MIPSR2
1373	select CPU_HAS_PREFETCH
1374	select CPU_SUPPORTS_64BIT_KERNEL
1375	select CPU_SUPPORTS_HIGHMEM
1376	select CPU_SUPPORTS_HUGEPAGES
1377	select CPU_SUPPORTS_MSA
1378	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1379	select CPU_MIPSR2_IRQ_VI
1380	select WEAK_ORDERING
1381	select WEAK_REORDERING_BEYOND_LLSC
1382	select MIPS_ASID_BITS_VARIABLE
1383	select MIPS_PGD_C0_CONTEXT
1384	select MIPS_L1_CACHE_SHIFT_6
1385	select GPIOLIB
1386	select SWIOTLB
1387	select HAVE_KVM
1388	help
1389		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1390		cores implements the MIPS64R2 instruction set with many extensions,
1391		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1392		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1393		Loongson-2E/2F is not covered here and will be removed in future.
1394
1395config LOONGSON3_ENHANCEMENT
1396	bool "New Loongson-3 CPU Enhancements"
1397	default n
1398	depends on CPU_LOONGSON64
1399	help
1400	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1401	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1402	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1403	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1404	  Fast TLB refill support, etc.
1405
1406	  This option enable those enhancements which are not probed at run
1407	  time. If you want a generic kernel to run on all Loongson 3 machines,
1408	  please say 'N' here. If you want a high-performance kernel to run on
1409	  new Loongson-3 machines only, please say 'Y' here.
1410
1411config CPU_LOONGSON3_WORKAROUNDS
1412	bool "Old Loongson-3 LLSC Workarounds"
1413	default y if SMP
1414	depends on CPU_LOONGSON64
1415	help
1416	  Loongson-3 processors have the llsc issues which require workarounds.
1417	  Without workarounds the system may hang unexpectedly.
1418
1419	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1420	  The workarounds have no significant side effect on them but may
1421	  decrease the performance of the system so this option should be
1422	  disabled unless the kernel is intended to be run on old systems.
1423
1424	  If unsure, please say Y.
1425
1426config CPU_LOONGSON3_CPUCFG_EMULATION
1427	bool "Emulate the CPUCFG instruction on older Loongson cores"
1428	default y
1429	depends on CPU_LOONGSON64
1430	help
1431	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1432	  userland to query CPU capabilities, much like CPUID on x86. This
1433	  option provides emulation of the instruction on older Loongson
1434	  cores, back to Loongson-3A1000.
1435
1436	  If unsure, please say Y.
1437
1438config CPU_LOONGSON2E
1439	bool "Loongson 2E"
1440	depends on SYS_HAS_CPU_LOONGSON2E
1441	select CPU_LOONGSON2EF
1442	help
1443	  The Loongson 2E processor implements the MIPS III instruction set
1444	  with many extensions.
1445
1446	  It has an internal FPGA northbridge, which is compatible to
1447	  bonito64.
1448
1449config CPU_LOONGSON2F
1450	bool "Loongson 2F"
1451	depends on SYS_HAS_CPU_LOONGSON2F
1452	select CPU_LOONGSON2EF
1453	select GPIOLIB
1454	help
1455	  The Loongson 2F processor implements the MIPS III instruction set
1456	  with many extensions.
1457
1458	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1459	  have a similar programming interface with FPGA northbridge used in
1460	  Loongson2E.
1461
1462config CPU_LOONGSON1B
1463	bool "Loongson 1B"
1464	depends on SYS_HAS_CPU_LOONGSON1B
1465	select CPU_LOONGSON32
1466	select LEDS_GPIO_REGISTER
1467	help
1468	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1469	  Release 1 instruction set and part of the MIPS32 Release 2
1470	  instruction set.
1471
1472config CPU_LOONGSON1C
1473	bool "Loongson 1C"
1474	depends on SYS_HAS_CPU_LOONGSON1C
1475	select CPU_LOONGSON32
1476	select LEDS_GPIO_REGISTER
1477	help
1478	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1479	  Release 1 instruction set and part of the MIPS32 Release 2
1480	  instruction set.
1481
1482config CPU_MIPS32_R1
1483	bool "MIPS32 Release 1"
1484	depends on SYS_HAS_CPU_MIPS32_R1
1485	select CPU_HAS_PREFETCH
1486	select CPU_SUPPORTS_32BIT_KERNEL
1487	select CPU_SUPPORTS_HIGHMEM
1488	help
1489	  Choose this option to build a kernel for release 1 or later of the
1490	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1491	  MIPS processor are based on a MIPS32 processor.  If you know the
1492	  specific type of processor in your system, choose those that one
1493	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1494	  Release 2 of the MIPS32 architecture is available since several
1495	  years so chances are you even have a MIPS32 Release 2 processor
1496	  in which case you should choose CPU_MIPS32_R2 instead for better
1497	  performance.
1498
1499config CPU_MIPS32_R2
1500	bool "MIPS32 Release 2"
1501	depends on SYS_HAS_CPU_MIPS32_R2
1502	select CPU_HAS_PREFETCH
1503	select CPU_SUPPORTS_32BIT_KERNEL
1504	select CPU_SUPPORTS_HIGHMEM
1505	select CPU_SUPPORTS_MSA
1506	select HAVE_KVM
1507	help
1508	  Choose this option to build a kernel for release 2 or later of the
1509	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1510	  MIPS processor are based on a MIPS32 processor.  If you know the
1511	  specific type of processor in your system, choose those that one
1512	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1513
1514config CPU_MIPS32_R5
1515	bool "MIPS32 Release 5"
1516	depends on SYS_HAS_CPU_MIPS32_R5
1517	select CPU_HAS_PREFETCH
1518	select CPU_SUPPORTS_32BIT_KERNEL
1519	select CPU_SUPPORTS_HIGHMEM
1520	select CPU_SUPPORTS_MSA
1521	select HAVE_KVM
1522	select MIPS_O32_FP64_SUPPORT
1523	help
1524	  Choose this option to build a kernel for release 5 or later of the
1525	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1526	  family, are based on a MIPS32r5 processor. If you own an older
1527	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1528
1529config CPU_MIPS32_R6
1530	bool "MIPS32 Release 6"
1531	depends on SYS_HAS_CPU_MIPS32_R6
1532	select CPU_HAS_PREFETCH
1533	select CPU_NO_LOAD_STORE_LR
1534	select CPU_SUPPORTS_32BIT_KERNEL
1535	select CPU_SUPPORTS_HIGHMEM
1536	select CPU_SUPPORTS_MSA
1537	select HAVE_KVM
1538	select MIPS_O32_FP64_SUPPORT
1539	help
1540	  Choose this option to build a kernel for release 6 or later of the
1541	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1542	  family, are based on a MIPS32r6 processor. If you own an older
1543	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1544
1545config CPU_MIPS64_R1
1546	bool "MIPS64 Release 1"
1547	depends on SYS_HAS_CPU_MIPS64_R1
1548	select CPU_HAS_PREFETCH
1549	select CPU_SUPPORTS_32BIT_KERNEL
1550	select CPU_SUPPORTS_64BIT_KERNEL
1551	select CPU_SUPPORTS_HIGHMEM
1552	select CPU_SUPPORTS_HUGEPAGES
1553	help
1554	  Choose this option to build a kernel for release 1 or later of the
1555	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1556	  MIPS processor are based on a MIPS64 processor.  If you know the
1557	  specific type of processor in your system, choose those that one
1558	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1559	  Release 2 of the MIPS64 architecture is available since several
1560	  years so chances are you even have a MIPS64 Release 2 processor
1561	  in which case you should choose CPU_MIPS64_R2 instead for better
1562	  performance.
1563
1564config CPU_MIPS64_R2
1565	bool "MIPS64 Release 2"
1566	depends on SYS_HAS_CPU_MIPS64_R2
1567	select CPU_HAS_PREFETCH
1568	select CPU_SUPPORTS_32BIT_KERNEL
1569	select CPU_SUPPORTS_64BIT_KERNEL
1570	select CPU_SUPPORTS_HIGHMEM
1571	select CPU_SUPPORTS_HUGEPAGES
1572	select CPU_SUPPORTS_MSA
1573	select HAVE_KVM
1574	help
1575	  Choose this option to build a kernel for release 2 or later of the
1576	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1577	  MIPS processor are based on a MIPS64 processor.  If you know the
1578	  specific type of processor in your system, choose those that one
1579	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1580
1581config CPU_MIPS64_R5
1582	bool "MIPS64 Release 5"
1583	depends on SYS_HAS_CPU_MIPS64_R5
1584	select CPU_HAS_PREFETCH
1585	select CPU_SUPPORTS_32BIT_KERNEL
1586	select CPU_SUPPORTS_64BIT_KERNEL
1587	select CPU_SUPPORTS_HIGHMEM
1588	select CPU_SUPPORTS_HUGEPAGES
1589	select CPU_SUPPORTS_MSA
1590	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1591	select HAVE_KVM
1592	help
1593	  Choose this option to build a kernel for release 5 or later of the
1594	  MIPS64 architecture.  This is a intermediate MIPS architecture
1595	  release partly implementing release 6 features. Though there is no
1596	  any hardware known to be based on this release.
1597
1598config CPU_MIPS64_R6
1599	bool "MIPS64 Release 6"
1600	depends on SYS_HAS_CPU_MIPS64_R6
1601	select CPU_HAS_PREFETCH
1602	select CPU_NO_LOAD_STORE_LR
1603	select CPU_SUPPORTS_32BIT_KERNEL
1604	select CPU_SUPPORTS_64BIT_KERNEL
1605	select CPU_SUPPORTS_HIGHMEM
1606	select CPU_SUPPORTS_HUGEPAGES
1607	select CPU_SUPPORTS_MSA
1608	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1609	select HAVE_KVM
1610	help
1611	  Choose this option to build a kernel for release 6 or later of the
1612	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1613	  family, are based on a MIPS64r6 processor. If you own an older
1614	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1615
1616config CPU_P5600
1617	bool "MIPS Warrior P5600"
1618	depends on SYS_HAS_CPU_P5600
1619	select CPU_HAS_PREFETCH
1620	select CPU_SUPPORTS_32BIT_KERNEL
1621	select CPU_SUPPORTS_HIGHMEM
1622	select CPU_SUPPORTS_MSA
1623	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1624	select CPU_SUPPORTS_CPUFREQ
1625	select CPU_MIPSR2_IRQ_VI
1626	select CPU_MIPSR2_IRQ_EI
1627	select HAVE_KVM
1628	select MIPS_O32_FP64_SUPPORT
1629	help
1630	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1631	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1632	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1633	  level features like up to six P5600 calculation cores, CM2 with L2
1634	  cache, IOCU/IOMMU (though might be unused depending on the system-
1635	  specific IP core configuration), GIC, CPC, virtualisation module,
1636	  eJTAG and PDtrace.
1637
1638config CPU_R3000
1639	bool "R3000"
1640	depends on SYS_HAS_CPU_R3000
1641	select CPU_HAS_WB
1642	select CPU_R3K_TLB
1643	select CPU_SUPPORTS_32BIT_KERNEL
1644	select CPU_SUPPORTS_HIGHMEM
1645	help
1646	  Please make sure to pick the right CPU type. Linux/MIPS is not
1647	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1648	  *not* work on R4000 machines and vice versa.  However, since most
1649	  of the supported machines have an R4000 (or similar) CPU, R4x00
1650	  might be a safe bet.  If the resulting kernel does not work,
1651	  try to recompile with R3000.
1652
1653config CPU_TX39XX
1654	bool "R39XX"
1655	depends on SYS_HAS_CPU_TX39XX
1656	select CPU_SUPPORTS_32BIT_KERNEL
1657	select CPU_R3K_TLB
1658
1659config CPU_VR41XX
1660	bool "R41xx"
1661	depends on SYS_HAS_CPU_VR41XX
1662	select CPU_SUPPORTS_32BIT_KERNEL
1663	select CPU_SUPPORTS_64BIT_KERNEL
1664	help
1665	  The options selects support for the NEC VR4100 series of processors.
1666	  Only choose this option if you have one of these processors as a
1667	  kernel built with this option will not run on any other type of
1668	  processor or vice versa.
1669
1670config CPU_R4X00
1671	bool "R4x00"
1672	depends on SYS_HAS_CPU_R4X00
1673	select CPU_SUPPORTS_32BIT_KERNEL
1674	select CPU_SUPPORTS_64BIT_KERNEL
1675	select CPU_SUPPORTS_HUGEPAGES
1676	help
1677	  MIPS Technologies R4000-series processors other than 4300, including
1678	  the R4000, R4400, R4600, and 4700.
1679
1680config CPU_TX49XX
1681	bool "R49XX"
1682	depends on SYS_HAS_CPU_TX49XX
1683	select CPU_HAS_PREFETCH
1684	select CPU_SUPPORTS_32BIT_KERNEL
1685	select CPU_SUPPORTS_64BIT_KERNEL
1686	select CPU_SUPPORTS_HUGEPAGES
1687
1688config CPU_R5000
1689	bool "R5000"
1690	depends on SYS_HAS_CPU_R5000
1691	select CPU_SUPPORTS_32BIT_KERNEL
1692	select CPU_SUPPORTS_64BIT_KERNEL
1693	select CPU_SUPPORTS_HUGEPAGES
1694	help
1695	  MIPS Technologies R5000-series processors other than the Nevada.
1696
1697config CPU_R5500
1698	bool "R5500"
1699	depends on SYS_HAS_CPU_R5500
1700	select CPU_SUPPORTS_32BIT_KERNEL
1701	select CPU_SUPPORTS_64BIT_KERNEL
1702	select CPU_SUPPORTS_HUGEPAGES
1703	help
1704	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1705	  instruction set.
1706
1707config CPU_NEVADA
1708	bool "RM52xx"
1709	depends on SYS_HAS_CPU_NEVADA
1710	select CPU_SUPPORTS_32BIT_KERNEL
1711	select CPU_SUPPORTS_64BIT_KERNEL
1712	select CPU_SUPPORTS_HUGEPAGES
1713	help
1714	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1715
1716config CPU_R10000
1717	bool "R10000"
1718	depends on SYS_HAS_CPU_R10000
1719	select CPU_HAS_PREFETCH
1720	select CPU_SUPPORTS_32BIT_KERNEL
1721	select CPU_SUPPORTS_64BIT_KERNEL
1722	select CPU_SUPPORTS_HIGHMEM
1723	select CPU_SUPPORTS_HUGEPAGES
1724	help
1725	  MIPS Technologies R10000-series processors.
1726
1727config CPU_RM7000
1728	bool "RM7000"
1729	depends on SYS_HAS_CPU_RM7000
1730	select CPU_HAS_PREFETCH
1731	select CPU_SUPPORTS_32BIT_KERNEL
1732	select CPU_SUPPORTS_64BIT_KERNEL
1733	select CPU_SUPPORTS_HIGHMEM
1734	select CPU_SUPPORTS_HUGEPAGES
1735
1736config CPU_SB1
1737	bool "SB1"
1738	depends on SYS_HAS_CPU_SB1
1739	select CPU_SUPPORTS_32BIT_KERNEL
1740	select CPU_SUPPORTS_64BIT_KERNEL
1741	select CPU_SUPPORTS_HIGHMEM
1742	select CPU_SUPPORTS_HUGEPAGES
1743	select WEAK_ORDERING
1744
1745config CPU_CAVIUM_OCTEON
1746	bool "Cavium Octeon processor"
1747	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1748	select CPU_HAS_PREFETCH
1749	select CPU_SUPPORTS_64BIT_KERNEL
1750	select WEAK_ORDERING
1751	select CPU_SUPPORTS_HIGHMEM
1752	select CPU_SUPPORTS_HUGEPAGES
1753	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1754	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1755	select MIPS_L1_CACHE_SHIFT_7
1756	select HAVE_KVM
1757	help
1758	  The Cavium Octeon processor is a highly integrated chip containing
1759	  many ethernet hardware widgets for networking tasks. The processor
1760	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1761	  Full details can be found at http://www.caviumnetworks.com.
1762
1763config CPU_BMIPS
1764	bool "Broadcom BMIPS"
1765	depends on SYS_HAS_CPU_BMIPS
1766	select CPU_MIPS32
1767	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1768	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1769	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1770	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1771	select CPU_SUPPORTS_32BIT_KERNEL
1772	select DMA_NONCOHERENT
1773	select IRQ_MIPS_CPU
1774	select SWAP_IO_SPACE
1775	select WEAK_ORDERING
1776	select CPU_SUPPORTS_HIGHMEM
1777	select CPU_HAS_PREFETCH
1778	select CPU_SUPPORTS_CPUFREQ
1779	select MIPS_EXTERNAL_TIMER
1780	help
1781	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1782
1783config CPU_XLR
1784	bool "Netlogic XLR SoC"
1785	depends on SYS_HAS_CPU_XLR
1786	select CPU_SUPPORTS_32BIT_KERNEL
1787	select CPU_SUPPORTS_64BIT_KERNEL
1788	select CPU_SUPPORTS_HIGHMEM
1789	select CPU_SUPPORTS_HUGEPAGES
1790	select WEAK_ORDERING
1791	select WEAK_REORDERING_BEYOND_LLSC
1792	help
1793	  Netlogic Microsystems XLR/XLS processors.
1794
1795config CPU_XLP
1796	bool "Netlogic XLP SoC"
1797	depends on SYS_HAS_CPU_XLP
1798	select CPU_SUPPORTS_32BIT_KERNEL
1799	select CPU_SUPPORTS_64BIT_KERNEL
1800	select CPU_SUPPORTS_HIGHMEM
1801	select WEAK_ORDERING
1802	select WEAK_REORDERING_BEYOND_LLSC
1803	select CPU_HAS_PREFETCH
1804	select CPU_MIPSR2
1805	select CPU_SUPPORTS_HUGEPAGES
1806	select MIPS_ASID_BITS_VARIABLE
1807	help
1808	  Netlogic Microsystems XLP processors.
1809endchoice
1810
1811config CPU_MIPS32_3_5_FEATURES
1812	bool "MIPS32 Release 3.5 Features"
1813	depends on SYS_HAS_CPU_MIPS32_R3_5
1814	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1815		   CPU_P5600
1816	help
1817	  Choose this option to build a kernel for release 2 or later of the
1818	  MIPS32 architecture including features from the 3.5 release such as
1819	  support for Enhanced Virtual Addressing (EVA).
1820
1821config CPU_MIPS32_3_5_EVA
1822	bool "Enhanced Virtual Addressing (EVA)"
1823	depends on CPU_MIPS32_3_5_FEATURES
1824	select EVA
1825	default y
1826	help
1827	  Choose this option if you want to enable the Enhanced Virtual
1828	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1829	  One of its primary benefits is an increase in the maximum size
1830	  of lowmem (up to 3GB). If unsure, say 'N' here.
1831
1832config CPU_MIPS32_R5_FEATURES
1833	bool "MIPS32 Release 5 Features"
1834	depends on SYS_HAS_CPU_MIPS32_R5
1835	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1836	help
1837	  Choose this option to build a kernel for release 2 or later of the
1838	  MIPS32 architecture including features from release 5 such as
1839	  support for Extended Physical Addressing (XPA).
1840
1841config CPU_MIPS32_R5_XPA
1842	bool "Extended Physical Addressing (XPA)"
1843	depends on CPU_MIPS32_R5_FEATURES
1844	depends on !EVA
1845	depends on !PAGE_SIZE_4KB
1846	depends on SYS_SUPPORTS_HIGHMEM
1847	select XPA
1848	select HIGHMEM
1849	select PHYS_ADDR_T_64BIT
1850	default n
1851	help
1852	  Choose this option if you want to enable the Extended Physical
1853	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1854	  benefit is to increase physical addressing equal to or greater
1855	  than 40 bits. Note that this has the side effect of turning on
1856	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1857	  If unsure, say 'N' here.
1858
1859if CPU_LOONGSON2F
1860config CPU_NOP_WORKAROUNDS
1861	bool
1862
1863config CPU_JUMP_WORKAROUNDS
1864	bool
1865
1866config CPU_LOONGSON2F_WORKAROUNDS
1867	bool "Loongson 2F Workarounds"
1868	default y
1869	select CPU_NOP_WORKAROUNDS
1870	select CPU_JUMP_WORKAROUNDS
1871	help
1872	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1873	  require workarounds.  Without workarounds the system may hang
1874	  unexpectedly.  For more information please refer to the gas
1875	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1876
1877	  Loongson 2F03 and later have fixed these issues and no workarounds
1878	  are needed.  The workarounds have no significant side effect on them
1879	  but may decrease the performance of the system so this option should
1880	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1881	  systems.
1882
1883	  If unsure, please say Y.
1884endif # CPU_LOONGSON2F
1885
1886config SYS_SUPPORTS_ZBOOT
1887	bool
1888	select HAVE_KERNEL_GZIP
1889	select HAVE_KERNEL_BZIP2
1890	select HAVE_KERNEL_LZ4
1891	select HAVE_KERNEL_LZMA
1892	select HAVE_KERNEL_LZO
1893	select HAVE_KERNEL_XZ
1894
1895config SYS_SUPPORTS_ZBOOT_UART16550
1896	bool
1897	select SYS_SUPPORTS_ZBOOT
1898
1899config SYS_SUPPORTS_ZBOOT_UART_PROM
1900	bool
1901	select SYS_SUPPORTS_ZBOOT
1902
1903config CPU_LOONGSON2EF
1904	bool
1905	select CPU_SUPPORTS_32BIT_KERNEL
1906	select CPU_SUPPORTS_64BIT_KERNEL
1907	select CPU_SUPPORTS_HIGHMEM
1908	select CPU_SUPPORTS_HUGEPAGES
1909	select ARCH_HAS_PHYS_TO_DMA
1910
1911config CPU_LOONGSON32
1912	bool
1913	select CPU_MIPS32
1914	select CPU_MIPSR2
1915	select CPU_HAS_PREFETCH
1916	select CPU_SUPPORTS_32BIT_KERNEL
1917	select CPU_SUPPORTS_HIGHMEM
1918	select CPU_SUPPORTS_CPUFREQ
1919
1920config CPU_BMIPS32_3300
1921	select SMP_UP if SMP
1922	bool
1923
1924config CPU_BMIPS4350
1925	bool
1926	select SYS_SUPPORTS_SMP
1927	select SYS_SUPPORTS_HOTPLUG_CPU
1928
1929config CPU_BMIPS4380
1930	bool
1931	select MIPS_L1_CACHE_SHIFT_6
1932	select SYS_SUPPORTS_SMP
1933	select SYS_SUPPORTS_HOTPLUG_CPU
1934	select CPU_HAS_RIXI
1935
1936config CPU_BMIPS5000
1937	bool
1938	select MIPS_CPU_SCACHE
1939	select MIPS_L1_CACHE_SHIFT_7
1940	select SYS_SUPPORTS_SMP
1941	select SYS_SUPPORTS_HOTPLUG_CPU
1942	select CPU_HAS_RIXI
1943
1944config SYS_HAS_CPU_LOONGSON64
1945	bool
1946	select CPU_SUPPORTS_CPUFREQ
1947	select CPU_HAS_RIXI
1948
1949config SYS_HAS_CPU_LOONGSON2E
1950	bool
1951
1952config SYS_HAS_CPU_LOONGSON2F
1953	bool
1954	select CPU_SUPPORTS_CPUFREQ
1955	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1956
1957config SYS_HAS_CPU_LOONGSON1B
1958	bool
1959
1960config SYS_HAS_CPU_LOONGSON1C
1961	bool
1962
1963config SYS_HAS_CPU_MIPS32_R1
1964	bool
1965
1966config SYS_HAS_CPU_MIPS32_R2
1967	bool
1968
1969config SYS_HAS_CPU_MIPS32_R3_5
1970	bool
1971
1972config SYS_HAS_CPU_MIPS32_R5
1973	bool
1974	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1975
1976config SYS_HAS_CPU_MIPS32_R6
1977	bool
1978	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1979
1980config SYS_HAS_CPU_MIPS64_R1
1981	bool
1982
1983config SYS_HAS_CPU_MIPS64_R2
1984	bool
1985
1986config SYS_HAS_CPU_MIPS64_R6
1987	bool
1988	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1989
1990config SYS_HAS_CPU_P5600
1991	bool
1992	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1993
1994config SYS_HAS_CPU_R3000
1995	bool
1996
1997config SYS_HAS_CPU_TX39XX
1998	bool
1999
2000config SYS_HAS_CPU_VR41XX
2001	bool
2002
2003config SYS_HAS_CPU_R4X00
2004	bool
2005
2006config SYS_HAS_CPU_TX49XX
2007	bool
2008
2009config SYS_HAS_CPU_R5000
2010	bool
2011
2012config SYS_HAS_CPU_R5500
2013	bool
2014
2015config SYS_HAS_CPU_NEVADA
2016	bool
2017
2018config SYS_HAS_CPU_R10000
2019	bool
2020	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2021
2022config SYS_HAS_CPU_RM7000
2023	bool
2024
2025config SYS_HAS_CPU_SB1
2026	bool
2027
2028config SYS_HAS_CPU_CAVIUM_OCTEON
2029	bool
2030
2031config SYS_HAS_CPU_BMIPS
2032	bool
2033
2034config SYS_HAS_CPU_BMIPS32_3300
2035	bool
2036	select SYS_HAS_CPU_BMIPS
2037
2038config SYS_HAS_CPU_BMIPS4350
2039	bool
2040	select SYS_HAS_CPU_BMIPS
2041
2042config SYS_HAS_CPU_BMIPS4380
2043	bool
2044	select SYS_HAS_CPU_BMIPS
2045
2046config SYS_HAS_CPU_BMIPS5000
2047	bool
2048	select SYS_HAS_CPU_BMIPS
2049	select ARCH_HAS_SYNC_DMA_FOR_CPU
2050
2051config SYS_HAS_CPU_XLR
2052	bool
2053
2054config SYS_HAS_CPU_XLP
2055	bool
2056
2057#
2058# CPU may reorder R->R, R->W, W->R, W->W
2059# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2060#
2061config WEAK_ORDERING
2062	bool
2063
2064#
2065# CPU may reorder reads and writes beyond LL/SC
2066# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2067#
2068config WEAK_REORDERING_BEYOND_LLSC
2069	bool
2070endmenu
2071
2072#
2073# These two indicate any level of the MIPS32 and MIPS64 architecture
2074#
2075config CPU_MIPS32
2076	bool
2077	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2078		     CPU_MIPS32_R6 || CPU_P5600
2079
2080config CPU_MIPS64
2081	bool
2082	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2083		     CPU_MIPS64_R6
2084
2085#
2086# These indicate the revision of the architecture
2087#
2088config CPU_MIPSR1
2089	bool
2090	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2091
2092config CPU_MIPSR2
2093	bool
2094	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2095	select CPU_HAS_RIXI
2096	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2097	select MIPS_SPRAM
2098
2099config CPU_MIPSR5
2100	bool
2101	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2102	select CPU_HAS_RIXI
2103	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2104	select MIPS_SPRAM
2105
2106config CPU_MIPSR6
2107	bool
2108	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2109	select CPU_HAS_RIXI
2110	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2111	select HAVE_ARCH_BITREVERSE
2112	select MIPS_ASID_BITS_VARIABLE
2113	select MIPS_CRC_SUPPORT
2114	select MIPS_SPRAM
2115
2116config TARGET_ISA_REV
2117	int
2118	default 1 if CPU_MIPSR1
2119	default 2 if CPU_MIPSR2
2120	default 5 if CPU_MIPSR5
2121	default 6 if CPU_MIPSR6
2122	default 0
2123	help
2124	  Reflects the ISA revision being targeted by the kernel build. This
2125	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2126
2127config EVA
2128	bool
2129
2130config XPA
2131	bool
2132
2133config SYS_SUPPORTS_32BIT_KERNEL
2134	bool
2135config SYS_SUPPORTS_64BIT_KERNEL
2136	bool
2137config CPU_SUPPORTS_32BIT_KERNEL
2138	bool
2139config CPU_SUPPORTS_64BIT_KERNEL
2140	bool
2141config CPU_SUPPORTS_CPUFREQ
2142	bool
2143config CPU_SUPPORTS_ADDRWINCFG
2144	bool
2145config CPU_SUPPORTS_HUGEPAGES
2146	bool
2147	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2148config MIPS_PGD_C0_CONTEXT
2149	bool
2150	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2151
2152#
2153# Set to y for ptrace access to watch registers.
2154#
2155config HARDWARE_WATCHPOINTS
2156	bool
2157	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2158
2159menu "Kernel type"
2160
2161choice
2162	prompt "Kernel code model"
2163	help
2164	  You should only select this option if you have a workload that
2165	  actually benefits from 64-bit processing or if your machine has
2166	  large memory.  You will only be presented a single option in this
2167	  menu if your system does not support both 32-bit and 64-bit kernels.
2168
2169config 32BIT
2170	bool "32-bit kernel"
2171	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2172	select TRAD_SIGNALS
2173	help
2174	  Select this option if you want to build a 32-bit kernel.
2175
2176config 64BIT
2177	bool "64-bit kernel"
2178	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2179	help
2180	  Select this option if you want to build a 64-bit kernel.
2181
2182endchoice
2183
2184config KVM_GUEST
2185	bool "KVM Guest Kernel"
2186	depends on BROKEN_ON_SMP
2187	help
2188	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2189	  mode.
2190
2191config KVM_GUEST_TIMER_FREQ
2192	int "Count/Compare Timer Frequency (MHz)"
2193	depends on KVM_GUEST
2194	default 100
2195	help
2196	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2197	  emulation when determining guest CPU Frequency. Instead, the guest's
2198	  timer frequency is specified directly.
2199
2200config MIPS_VA_BITS_48
2201	bool "48 bits virtual memory"
2202	depends on 64BIT
2203	help
2204	  Support a maximum at least 48 bits of application virtual
2205	  memory.  Default is 40 bits or less, depending on the CPU.
2206	  For page sizes 16k and above, this option results in a small
2207	  memory overhead for page tables.  For 4k page size, a fourth
2208	  level of page tables is added which imposes both a memory
2209	  overhead as well as slower TLB fault handling.
2210
2211	  If unsure, say N.
2212
2213choice
2214	prompt "Kernel page size"
2215	default PAGE_SIZE_4KB
2216
2217config PAGE_SIZE_4KB
2218	bool "4kB"
2219	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2220	help
2221	  This option select the standard 4kB Linux page size.  On some
2222	  R3000-family processors this is the only available page size.  Using
2223	  4kB page size will minimize memory consumption and is therefore
2224	  recommended for low memory systems.
2225
2226config PAGE_SIZE_8KB
2227	bool "8kB"
2228	depends on CPU_CAVIUM_OCTEON
2229	depends on !MIPS_VA_BITS_48
2230	help
2231	  Using 8kB page size will result in higher performance kernel at
2232	  the price of higher memory consumption.  This option is available
2233	  only on cnMIPS processors.  Note that you will need a suitable Linux
2234	  distribution to support this.
2235
2236config PAGE_SIZE_16KB
2237	bool "16kB"
2238	depends on !CPU_R3000 && !CPU_TX39XX
2239	help
2240	  Using 16kB page size will result in higher performance kernel at
2241	  the price of higher memory consumption.  This option is available on
2242	  all non-R3000 family processors.  Note that you will need a suitable
2243	  Linux distribution to support this.
2244
2245config PAGE_SIZE_32KB
2246	bool "32kB"
2247	depends on CPU_CAVIUM_OCTEON
2248	depends on !MIPS_VA_BITS_48
2249	help
2250	  Using 32kB page size will result in higher performance kernel at
2251	  the price of higher memory consumption.  This option is available
2252	  only on cnMIPS cores.  Note that you will need a suitable Linux
2253	  distribution to support this.
2254
2255config PAGE_SIZE_64KB
2256	bool "64kB"
2257	depends on !CPU_R3000 && !CPU_TX39XX
2258	help
2259	  Using 64kB page size will result in higher performance kernel at
2260	  the price of higher memory consumption.  This option is available on
2261	  all non-R3000 family processor.  Not that at the time of this
2262	  writing this option is still high experimental.
2263
2264endchoice
2265
2266config FORCE_MAX_ZONEORDER
2267	int "Maximum zone order"
2268	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2269	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2270	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2271	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2272	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2273	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2274	range 11 64
2275	default "11"
2276	help
2277	  The kernel memory allocator divides physically contiguous memory
2278	  blocks into "zones", where each zone is a power of two number of
2279	  pages.  This option selects the largest power of two that the kernel
2280	  keeps in the memory allocator.  If you need to allocate very large
2281	  blocks of physically contiguous memory, then you may need to
2282	  increase this value.
2283
2284	  This config option is actually maximum order plus one. For example,
2285	  a value of 11 means that the largest free memory block is 2^10 pages.
2286
2287	  The page size is not necessarily 4KB.  Keep this in mind
2288	  when choosing a value for this option.
2289
2290config BOARD_SCACHE
2291	bool
2292
2293config IP22_CPU_SCACHE
2294	bool
2295	select BOARD_SCACHE
2296
2297#
2298# Support for a MIPS32 / MIPS64 style S-caches
2299#
2300config MIPS_CPU_SCACHE
2301	bool
2302	select BOARD_SCACHE
2303
2304config R5000_CPU_SCACHE
2305	bool
2306	select BOARD_SCACHE
2307
2308config RM7000_CPU_SCACHE
2309	bool
2310	select BOARD_SCACHE
2311
2312config SIBYTE_DMA_PAGEOPS
2313	bool "Use DMA to clear/copy pages"
2314	depends on CPU_SB1
2315	help
2316	  Instead of using the CPU to zero and copy pages, use a Data Mover
2317	  channel.  These DMA channels are otherwise unused by the standard
2318	  SiByte Linux port.  Seems to give a small performance benefit.
2319
2320config CPU_HAS_PREFETCH
2321	bool
2322
2323config CPU_GENERIC_DUMP_TLB
2324	bool
2325	default y if !(CPU_R3000 || CPU_TX39XX)
2326
2327config MIPS_FP_SUPPORT
2328	bool "Floating Point support" if EXPERT
2329	default y
2330	help
2331	  Select y to include support for floating point in the kernel
2332	  including initialization of FPU hardware, FP context save & restore
2333	  and emulation of an FPU where necessary. Without this support any
2334	  userland program attempting to use floating point instructions will
2335	  receive a SIGILL.
2336
2337	  If you know that your userland will not attempt to use floating point
2338	  instructions then you can say n here to shrink the kernel a little.
2339
2340	  If unsure, say y.
2341
2342config CPU_R2300_FPU
2343	bool
2344	depends on MIPS_FP_SUPPORT
2345	default y if CPU_R3000 || CPU_TX39XX
2346
2347config CPU_R3K_TLB
2348	bool
2349
2350config CPU_R4K_FPU
2351	bool
2352	depends on MIPS_FP_SUPPORT
2353	default y if !CPU_R2300_FPU
2354
2355config CPU_R4K_CACHE_TLB
2356	bool
2357	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2358
2359config MIPS_MT_SMP
2360	bool "MIPS MT SMP support (1 TC on each available VPE)"
2361	default y
2362	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2363	select CPU_MIPSR2_IRQ_VI
2364	select CPU_MIPSR2_IRQ_EI
2365	select SYNC_R4K
2366	select MIPS_MT
2367	select SMP
2368	select SMP_UP
2369	select SYS_SUPPORTS_SMP
2370	select SYS_SUPPORTS_SCHED_SMT
2371	select MIPS_PERF_SHARED_TC_COUNTERS
2372	help
2373	  This is a kernel model which is known as SMVP. This is supported
2374	  on cores with the MT ASE and uses the available VPEs to implement
2375	  virtual processors which supports SMP. This is equivalent to the
2376	  Intel Hyperthreading feature. For further information go to
2377	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2378
2379config MIPS_MT
2380	bool
2381
2382config SCHED_SMT
2383	bool "SMT (multithreading) scheduler support"
2384	depends on SYS_SUPPORTS_SCHED_SMT
2385	default n
2386	help
2387	  SMT scheduler support improves the CPU scheduler's decision making
2388	  when dealing with MIPS MT enabled cores at a cost of slightly
2389	  increased overhead in some places. If unsure say N here.
2390
2391config SYS_SUPPORTS_SCHED_SMT
2392	bool
2393
2394config SYS_SUPPORTS_MULTITHREADING
2395	bool
2396
2397config MIPS_MT_FPAFF
2398	bool "Dynamic FPU affinity for FP-intensive threads"
2399	default y
2400	depends on MIPS_MT_SMP
2401
2402config MIPSR2_TO_R6_EMULATOR
2403	bool "MIPS R2-to-R6 emulator"
2404	depends on CPU_MIPSR6
2405	depends on MIPS_FP_SUPPORT
2406	default y
2407	help
2408	  Choose this option if you want to run non-R6 MIPS userland code.
2409	  Even if you say 'Y' here, the emulator will still be disabled by
2410	  default. You can enable it using the 'mipsr2emu' kernel option.
2411	  The only reason this is a build-time option is to save ~14K from the
2412	  final kernel image.
2413
2414config SYS_SUPPORTS_VPE_LOADER
2415	bool
2416	depends on SYS_SUPPORTS_MULTITHREADING
2417	help
2418	  Indicates that the platform supports the VPE loader, and provides
2419	  physical_memsize.
2420
2421config MIPS_VPE_LOADER
2422	bool "VPE loader support."
2423	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2424	select CPU_MIPSR2_IRQ_VI
2425	select CPU_MIPSR2_IRQ_EI
2426	select MIPS_MT
2427	help
2428	  Includes a loader for loading an elf relocatable object
2429	  onto another VPE and running it.
2430
2431config MIPS_VPE_LOADER_CMP
2432	bool
2433	default "y"
2434	depends on MIPS_VPE_LOADER && MIPS_CMP
2435
2436config MIPS_VPE_LOADER_MT
2437	bool
2438	default "y"
2439	depends on MIPS_VPE_LOADER && !MIPS_CMP
2440
2441config MIPS_VPE_LOADER_TOM
2442	bool "Load VPE program into memory hidden from linux"
2443	depends on MIPS_VPE_LOADER
2444	default y
2445	help
2446	  The loader can use memory that is present but has been hidden from
2447	  Linux using the kernel command line option "mem=xxMB". It's up to
2448	  you to ensure the amount you put in the option and the space your
2449	  program requires is less or equal to the amount physically present.
2450
2451config MIPS_VPE_APSP_API
2452	bool "Enable support for AP/SP API (RTLX)"
2453	depends on MIPS_VPE_LOADER
2454
2455config MIPS_VPE_APSP_API_CMP
2456	bool
2457	default "y"
2458	depends on MIPS_VPE_APSP_API && MIPS_CMP
2459
2460config MIPS_VPE_APSP_API_MT
2461	bool
2462	default "y"
2463	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2464
2465config MIPS_CMP
2466	bool "MIPS CMP framework support (DEPRECATED)"
2467	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2468	select SMP
2469	select SYNC_R4K
2470	select SYS_SUPPORTS_SMP
2471	select WEAK_ORDERING
2472	default n
2473	help
2474	  Select this if you are using a bootloader which implements the "CMP
2475	  framework" protocol (ie. YAMON) and want your kernel to make use of
2476	  its ability to start secondary CPUs.
2477
2478	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2479	  instead of this.
2480
2481config MIPS_CPS
2482	bool "MIPS Coherent Processing System support"
2483	depends on SYS_SUPPORTS_MIPS_CPS
2484	select MIPS_CM
2485	select MIPS_CPS_PM if HOTPLUG_CPU
2486	select SMP
2487	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2488	select SYS_SUPPORTS_HOTPLUG_CPU
2489	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2490	select SYS_SUPPORTS_SMP
2491	select WEAK_ORDERING
2492	help
2493	  Select this if you wish to run an SMP kernel across multiple cores
2494	  within a MIPS Coherent Processing System. When this option is
2495	  enabled the kernel will probe for other cores and boot them with
2496	  no external assistance. It is safe to enable this when hardware
2497	  support is unavailable.
2498
2499config MIPS_CPS_PM
2500	depends on MIPS_CPS
2501	bool
2502
2503config MIPS_CM
2504	bool
2505	select MIPS_CPC
2506
2507config MIPS_CPC
2508	bool
2509
2510config SB1_PASS_2_WORKAROUNDS
2511	bool
2512	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2513	default y
2514
2515config SB1_PASS_2_1_WORKAROUNDS
2516	bool
2517	depends on CPU_SB1 && CPU_SB1_PASS_2
2518	default y
2519
2520choice
2521	prompt "SmartMIPS or microMIPS ASE support"
2522
2523config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2524	bool "None"
2525	help
2526	  Select this if you want neither microMIPS nor SmartMIPS support
2527
2528config CPU_HAS_SMARTMIPS
2529	depends on SYS_SUPPORTS_SMARTMIPS
2530	bool "SmartMIPS"
2531	help
2532	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2533	  increased security at both hardware and software level for
2534	  smartcards.  Enabling this option will allow proper use of the
2535	  SmartMIPS instructions by Linux applications.  However a kernel with
2536	  this option will not work on a MIPS core without SmartMIPS core.  If
2537	  you don't know you probably don't have SmartMIPS and should say N
2538	  here.
2539
2540config CPU_MICROMIPS
2541	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2542	bool "microMIPS"
2543	help
2544	  When this option is enabled the kernel will be built using the
2545	  microMIPS ISA
2546
2547endchoice
2548
2549config CPU_HAS_MSA
2550	bool "Support for the MIPS SIMD Architecture"
2551	depends on CPU_SUPPORTS_MSA
2552	depends on MIPS_FP_SUPPORT
2553	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2554	help
2555	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2556	  and a set of SIMD instructions to operate on them. When this option
2557	  is enabled the kernel will support allocating & switching MSA
2558	  vector register contexts. If you know that your kernel will only be
2559	  running on CPUs which do not support MSA or that your userland will
2560	  not be making use of it then you may wish to say N here to reduce
2561	  the size & complexity of your kernel.
2562
2563	  If unsure, say Y.
2564
2565config CPU_HAS_WB
2566	bool
2567
2568config XKS01
2569	bool
2570
2571config CPU_HAS_DIEI
2572	depends on !CPU_DIEI_BROKEN
2573	bool
2574
2575config CPU_DIEI_BROKEN
2576	bool
2577
2578config CPU_HAS_RIXI
2579	bool
2580
2581config CPU_NO_LOAD_STORE_LR
2582	bool
2583	help
2584	  CPU lacks support for unaligned load and store instructions:
2585	  LWL, LWR, SWL, SWR (Load/store word left/right).
2586	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2587	  systems).
2588
2589#
2590# Vectored interrupt mode is an R2 feature
2591#
2592config CPU_MIPSR2_IRQ_VI
2593	bool
2594
2595#
2596# Extended interrupt mode is an R2 feature
2597#
2598config CPU_MIPSR2_IRQ_EI
2599	bool
2600
2601config CPU_HAS_SYNC
2602	bool
2603	depends on !CPU_R3000
2604	default y
2605
2606#
2607# CPU non-features
2608#
2609config CPU_DADDI_WORKAROUNDS
2610	bool
2611
2612config CPU_R4000_WORKAROUNDS
2613	bool
2614	select CPU_R4400_WORKAROUNDS
2615
2616config CPU_R4400_WORKAROUNDS
2617	bool
2618
2619config CPU_R4X00_BUGS64
2620	bool
2621	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2622
2623config MIPS_ASID_SHIFT
2624	int
2625	default 6 if CPU_R3000 || CPU_TX39XX
2626	default 0
2627
2628config MIPS_ASID_BITS
2629	int
2630	default 0 if MIPS_ASID_BITS_VARIABLE
2631	default 6 if CPU_R3000 || CPU_TX39XX
2632	default 8
2633
2634config MIPS_ASID_BITS_VARIABLE
2635	bool
2636
2637config MIPS_CRC_SUPPORT
2638	bool
2639
2640#
2641# - Highmem only makes sense for the 32-bit kernel.
2642# - The current highmem code will only work properly on physically indexed
2643#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2644#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2645#   moment we protect the user and offer the highmem option only on machines
2646#   where it's known to be safe.  This will not offer highmem on a few systems
2647#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2648#   indexed CPUs but we're playing safe.
2649# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2650#   know they might have memory configurations that could make use of highmem
2651#   support.
2652#
2653config HIGHMEM
2654	bool "High Memory Support"
2655	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2656
2657config CPU_SUPPORTS_HIGHMEM
2658	bool
2659
2660config SYS_SUPPORTS_HIGHMEM
2661	bool
2662
2663config SYS_SUPPORTS_SMARTMIPS
2664	bool
2665
2666config SYS_SUPPORTS_MICROMIPS
2667	bool
2668
2669config SYS_SUPPORTS_MIPS16
2670	bool
2671	help
2672	  This option must be set if a kernel might be executed on a MIPS16-
2673	  enabled CPU even if MIPS16 is not actually being used.  In other
2674	  words, it makes the kernel MIPS16-tolerant.
2675
2676config CPU_SUPPORTS_MSA
2677	bool
2678
2679config ARCH_FLATMEM_ENABLE
2680	def_bool y
2681	depends on !NUMA && !CPU_LOONGSON2EF
2682
2683config ARCH_SPARSEMEM_ENABLE
2684	bool
2685	select SPARSEMEM_STATIC if !SGI_IP27
2686
2687config NUMA
2688	bool "NUMA Support"
2689	depends on SYS_SUPPORTS_NUMA
2690	help
2691	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2692	  Access).  This option improves performance on systems with more
2693	  than two nodes; on two node systems it is generally better to
2694	  leave it disabled; on single node systems leave this option
2695	  disabled.
2696
2697config SYS_SUPPORTS_NUMA
2698	bool
2699
2700config HAVE_SETUP_PER_CPU_AREA
2701	def_bool y
2702	depends on NUMA
2703
2704config NEED_PER_CPU_EMBED_FIRST_CHUNK
2705	def_bool y
2706	depends on NUMA
2707
2708config RELOCATABLE
2709	bool "Relocatable kernel"
2710	depends on SYS_SUPPORTS_RELOCATABLE
2711	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2712		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2713		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2714		   CPU_P5600 || CAVIUM_OCTEON_SOC
2715	help
2716	  This builds a kernel image that retains relocation information
2717	  so it can be loaded someplace besides the default 1MB.
2718	  The relocations make the kernel binary about 15% larger,
2719	  but are discarded at runtime
2720
2721config RELOCATION_TABLE_SIZE
2722	hex "Relocation table size"
2723	depends on RELOCATABLE
2724	range 0x0 0x01000000
2725	default "0x00100000"
2726	help
2727	  A table of relocation data will be appended to the kernel binary
2728	  and parsed at boot to fix up the relocated kernel.
2729
2730	  This option allows the amount of space reserved for the table to be
2731	  adjusted, although the default of 1Mb should be ok in most cases.
2732
2733	  The build will fail and a valid size suggested if this is too small.
2734
2735	  If unsure, leave at the default value.
2736
2737config RANDOMIZE_BASE
2738	bool "Randomize the address of the kernel image"
2739	depends on RELOCATABLE
2740	help
2741	  Randomizes the physical and virtual address at which the
2742	  kernel image is loaded, as a security feature that
2743	  deters exploit attempts relying on knowledge of the location
2744	  of kernel internals.
2745
2746	  Entropy is generated using any coprocessor 0 registers available.
2747
2748	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2749
2750	  If unsure, say N.
2751
2752config RANDOMIZE_BASE_MAX_OFFSET
2753	hex "Maximum kASLR offset" if EXPERT
2754	depends on RANDOMIZE_BASE
2755	range 0x0 0x40000000 if EVA || 64BIT
2756	range 0x0 0x08000000
2757	default "0x01000000"
2758	help
2759	  When kASLR is active, this provides the maximum offset that will
2760	  be applied to the kernel image. It should be set according to the
2761	  amount of physical RAM available in the target system minus
2762	  PHYSICAL_START and must be a power of 2.
2763
2764	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2765	  EVA or 64-bit. The default is 16Mb.
2766
2767config NODES_SHIFT
2768	int
2769	default "6"
2770	depends on NEED_MULTIPLE_NODES
2771
2772config HW_PERF_EVENTS
2773	bool "Enable hardware performance counter support for perf events"
2774	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2775	default y
2776	help
2777	  Enable hardware performance counter support for perf events. If
2778	  disabled, perf events will use software events only.
2779
2780config DMI
2781	bool "Enable DMI scanning"
2782	depends on MACH_LOONGSON64
2783	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2784	default y
2785	help
2786	  Enabled scanning of DMI to identify machine quirks. Say Y
2787	  here unless you have verified that your setup is not
2788	  affected by entries in the DMI blacklist. Required by PNP
2789	  BIOS code.
2790
2791config SMP
2792	bool "Multi-Processing support"
2793	depends on SYS_SUPPORTS_SMP
2794	help
2795	  This enables support for systems with more than one CPU. If you have
2796	  a system with only one CPU, say N. If you have a system with more
2797	  than one CPU, say Y.
2798
2799	  If you say N here, the kernel will run on uni- and multiprocessor
2800	  machines, but will use only one CPU of a multiprocessor machine. If
2801	  you say Y here, the kernel will run on many, but not all,
2802	  uniprocessor machines. On a uniprocessor machine, the kernel
2803	  will run faster if you say N here.
2804
2805	  People using multiprocessor machines who say Y here should also say
2806	  Y to "Enhanced Real Time Clock Support", below.
2807
2808	  See also the SMP-HOWTO available at
2809	  <https://www.tldp.org/docs.html#howto>.
2810
2811	  If you don't know what to do here, say N.
2812
2813config HOTPLUG_CPU
2814	bool "Support for hot-pluggable CPUs"
2815	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2816	help
2817	  Say Y here to allow turning CPUs off and on. CPUs can be
2818	  controlled through /sys/devices/system/cpu.
2819	  (Note: power management support will enable this option
2820	    automatically on SMP systems. )
2821	  Say N if you want to disable CPU hotplug.
2822
2823config SMP_UP
2824	bool
2825
2826config SYS_SUPPORTS_MIPS_CMP
2827	bool
2828
2829config SYS_SUPPORTS_MIPS_CPS
2830	bool
2831
2832config SYS_SUPPORTS_SMP
2833	bool
2834
2835config NR_CPUS_DEFAULT_4
2836	bool
2837
2838config NR_CPUS_DEFAULT_8
2839	bool
2840
2841config NR_CPUS_DEFAULT_16
2842	bool
2843
2844config NR_CPUS_DEFAULT_32
2845	bool
2846
2847config NR_CPUS_DEFAULT_64
2848	bool
2849
2850config NR_CPUS
2851	int "Maximum number of CPUs (2-256)"
2852	range 2 256
2853	depends on SMP
2854	default "4" if NR_CPUS_DEFAULT_4
2855	default "8" if NR_CPUS_DEFAULT_8
2856	default "16" if NR_CPUS_DEFAULT_16
2857	default "32" if NR_CPUS_DEFAULT_32
2858	default "64" if NR_CPUS_DEFAULT_64
2859	help
2860	  This allows you to specify the maximum number of CPUs which this
2861	  kernel will support.  The maximum supported value is 32 for 32-bit
2862	  kernel and 64 for 64-bit kernels; the minimum value which makes
2863	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2864	  and 2 for all others.
2865
2866	  This is purely to save memory - each supported CPU adds
2867	  approximately eight kilobytes to the kernel image.  For best
2868	  performance should round up your number of processors to the next
2869	  power of two.
2870
2871config MIPS_PERF_SHARED_TC_COUNTERS
2872	bool
2873
2874config MIPS_NR_CPU_NR_MAP_1024
2875	bool
2876
2877config MIPS_NR_CPU_NR_MAP
2878	int
2879	depends on SMP
2880	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2881	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2882
2883#
2884# Timer Interrupt Frequency Configuration
2885#
2886
2887choice
2888	prompt "Timer frequency"
2889	default HZ_250
2890	help
2891	  Allows the configuration of the timer frequency.
2892
2893	config HZ_24
2894		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2895
2896	config HZ_48
2897		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2898
2899	config HZ_100
2900		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2901
2902	config HZ_128
2903		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2904
2905	config HZ_250
2906		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2907
2908	config HZ_256
2909		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2910
2911	config HZ_1000
2912		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2913
2914	config HZ_1024
2915		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2916
2917endchoice
2918
2919config SYS_SUPPORTS_24HZ
2920	bool
2921
2922config SYS_SUPPORTS_48HZ
2923	bool
2924
2925config SYS_SUPPORTS_100HZ
2926	bool
2927
2928config SYS_SUPPORTS_128HZ
2929	bool
2930
2931config SYS_SUPPORTS_250HZ
2932	bool
2933
2934config SYS_SUPPORTS_256HZ
2935	bool
2936
2937config SYS_SUPPORTS_1000HZ
2938	bool
2939
2940config SYS_SUPPORTS_1024HZ
2941	bool
2942
2943config SYS_SUPPORTS_ARBIT_HZ
2944	bool
2945	default y if !SYS_SUPPORTS_24HZ && \
2946		     !SYS_SUPPORTS_48HZ && \
2947		     !SYS_SUPPORTS_100HZ && \
2948		     !SYS_SUPPORTS_128HZ && \
2949		     !SYS_SUPPORTS_250HZ && \
2950		     !SYS_SUPPORTS_256HZ && \
2951		     !SYS_SUPPORTS_1000HZ && \
2952		     !SYS_SUPPORTS_1024HZ
2953
2954config HZ
2955	int
2956	default 24 if HZ_24
2957	default 48 if HZ_48
2958	default 100 if HZ_100
2959	default 128 if HZ_128
2960	default 250 if HZ_250
2961	default 256 if HZ_256
2962	default 1000 if HZ_1000
2963	default 1024 if HZ_1024
2964
2965config SCHED_HRTICK
2966	def_bool HIGH_RES_TIMERS
2967
2968config KEXEC
2969	bool "Kexec system call"
2970	select KEXEC_CORE
2971	help
2972	  kexec is a system call that implements the ability to shutdown your
2973	  current kernel, and to start another kernel.  It is like a reboot
2974	  but it is independent of the system firmware.   And like a reboot
2975	  you can start any kernel with it, not just Linux.
2976
2977	  The name comes from the similarity to the exec system call.
2978
2979	  It is an ongoing process to be certain the hardware in a machine
2980	  is properly shutdown, so do not be surprised if this code does not
2981	  initially work for you.  As of this writing the exact hardware
2982	  interface is strongly in flux, so no good recommendation can be
2983	  made.
2984
2985config CRASH_DUMP
2986	bool "Kernel crash dumps"
2987	help
2988	  Generate crash dump after being started by kexec.
2989	  This should be normally only set in special crash dump kernels
2990	  which are loaded in the main kernel with kexec-tools into
2991	  a specially reserved region and then later executed after
2992	  a crash by kdump/kexec. The crash dump kernel must be compiled
2993	  to a memory address not used by the main kernel or firmware using
2994	  PHYSICAL_START.
2995
2996config PHYSICAL_START
2997	hex "Physical address where the kernel is loaded"
2998	default "0xffffffff84000000"
2999	depends on CRASH_DUMP
3000	help
3001	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3002	  If you plan to use kernel for capturing the crash dump change
3003	  this value to start of the reserved region (the "X" value as
3004	  specified in the "crashkernel=YM@XM" command line boot parameter
3005	  passed to the panic-ed kernel).
3006
3007config SECCOMP
3008	bool "Enable seccomp to safely compute untrusted bytecode"
3009	depends on PROC_FS
3010	default y
3011	help
3012	  This kernel feature is useful for number crunching applications
3013	  that may need to compute untrusted bytecode during their
3014	  execution. By using pipes or other transports made available to
3015	  the process as file descriptors supporting the read/write
3016	  syscalls, it's possible to isolate those applications in
3017	  their own address space using seccomp. Once seccomp is
3018	  enabled via /proc/<pid>/seccomp, it cannot be disabled
3019	  and the task is only allowed to execute a few safe syscalls
3020	  defined by each seccomp mode.
3021
3022	  If unsure, say Y. Only embedded should say N here.
3023
3024config MIPS_O32_FP64_SUPPORT
3025	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3026	depends on 32BIT || MIPS32_O32
3027	help
3028	  When this is enabled, the kernel will support use of 64-bit floating
3029	  point registers with binaries using the O32 ABI along with the
3030	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3031	  32-bit MIPS systems this support is at the cost of increasing the
3032	  size and complexity of the compiled FPU emulator. Thus if you are
3033	  running a MIPS32 system and know that none of your userland binaries
3034	  will require 64-bit floating point, you may wish to reduce the size
3035	  of your kernel & potentially improve FP emulation performance by
3036	  saying N here.
3037
3038	  Although binutils currently supports use of this flag the details
3039	  concerning its effect upon the O32 ABI in userland are still being
3040	  worked on. In order to avoid userland becoming dependant upon current
3041	  behaviour before the details have been finalised, this option should
3042	  be considered experimental and only enabled by those working upon
3043	  said details.
3044
3045	  If unsure, say N.
3046
3047config USE_OF
3048	bool
3049	select OF
3050	select OF_EARLY_FLATTREE
3051	select IRQ_DOMAIN
3052
3053config UHI_BOOT
3054	bool
3055
3056config BUILTIN_DTB
3057	bool
3058
3059choice
3060	prompt "Kernel appended dtb support" if USE_OF
3061	default MIPS_NO_APPENDED_DTB
3062
3063	config MIPS_NO_APPENDED_DTB
3064		bool "None"
3065		help
3066		  Do not enable appended dtb support.
3067
3068	config MIPS_ELF_APPENDED_DTB
3069		bool "vmlinux"
3070		help
3071		  With this option, the boot code will look for a device tree binary
3072		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3073		  it is empty and the DTB can be appended using binutils command
3074		  objcopy:
3075
3076		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3077
3078		  This is meant as a backward compatiblity convenience for those
3079		  systems with a bootloader that can't be upgraded to accommodate
3080		  the documented boot protocol using a device tree.
3081
3082	config MIPS_RAW_APPENDED_DTB
3083		bool "vmlinux.bin or vmlinuz.bin"
3084		help
3085		  With this option, the boot code will look for a device tree binary
3086		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3087		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3088
3089		  This is meant as a backward compatibility convenience for those
3090		  systems with a bootloader that can't be upgraded to accommodate
3091		  the documented boot protocol using a device tree.
3092
3093		  Beware that there is very little in terms of protection against
3094		  this option being confused by leftover garbage in memory that might
3095		  look like a DTB header after a reboot if no actual DTB is appended
3096		  to vmlinux.bin.  Do not leave this option active in a production kernel
3097		  if you don't intend to always append a DTB.
3098endchoice
3099
3100choice
3101	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3102	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3103					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3104					 !CAVIUM_OCTEON_SOC
3105	default MIPS_CMDLINE_FROM_BOOTLOADER
3106
3107	config MIPS_CMDLINE_FROM_DTB
3108		depends on USE_OF
3109		bool "Dtb kernel arguments if available"
3110
3111	config MIPS_CMDLINE_DTB_EXTEND
3112		depends on USE_OF
3113		bool "Extend dtb kernel arguments with bootloader arguments"
3114
3115	config MIPS_CMDLINE_FROM_BOOTLOADER
3116		bool "Bootloader kernel arguments if available"
3117
3118	config MIPS_CMDLINE_BUILTIN_EXTEND
3119		depends on CMDLINE_BOOL
3120		bool "Extend builtin kernel arguments with bootloader arguments"
3121endchoice
3122
3123endmenu
3124
3125config LOCKDEP_SUPPORT
3126	bool
3127	default y
3128
3129config STACKTRACE_SUPPORT
3130	bool
3131	default y
3132
3133config PGTABLE_LEVELS
3134	int
3135	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3136	default 3 if 64BIT && !PAGE_SIZE_64KB
3137	default 2
3138
3139config MIPS_AUTO_PFN_OFFSET
3140	bool
3141
3142menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3143
3144config PCI_DRIVERS_GENERIC
3145	select PCI_DOMAINS_GENERIC if PCI
3146	bool
3147
3148config PCI_DRIVERS_LEGACY
3149	def_bool !PCI_DRIVERS_GENERIC
3150	select NO_GENERIC_PCI_IOPORT_MAP
3151	select PCI_DOMAINS if PCI
3152
3153#
3154# ISA support is now enabled via select.  Too many systems still have the one
3155# or other ISA chip on the board that users don't know about so don't expect
3156# users to choose the right thing ...
3157#
3158config ISA
3159	bool
3160
3161config TC
3162	bool "TURBOchannel support"
3163	depends on MACH_DECSTATION
3164	help
3165	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3166	  processors.  TURBOchannel programming specifications are available
3167	  at:
3168	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3169	  and:
3170	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3171	  Linux driver support status is documented at:
3172	  <http://www.linux-mips.org/wiki/DECstation>
3173
3174config MMU
3175	bool
3176	default y
3177
3178config ARCH_MMAP_RND_BITS_MIN
3179	default 12 if 64BIT
3180	default 8
3181
3182config ARCH_MMAP_RND_BITS_MAX
3183	default 18 if 64BIT
3184	default 15
3185
3186config ARCH_MMAP_RND_COMPAT_BITS_MIN
3187	default 8
3188
3189config ARCH_MMAP_RND_COMPAT_BITS_MAX
3190	default 15
3191
3192config I8253
3193	bool
3194	select CLKSRC_I8253
3195	select CLKEVT_I8253
3196	select MIPS_EXTERNAL_TIMER
3197
3198config ZONE_DMA
3199	bool
3200
3201config ZONE_DMA32
3202	bool
3203
3204endmenu
3205
3206config TRAD_SIGNALS
3207	bool
3208
3209config MIPS32_COMPAT
3210	bool
3211
3212config COMPAT
3213	bool
3214
3215config SYSVIPC_COMPAT
3216	bool
3217
3218config MIPS32_O32
3219	bool "Kernel support for o32 binaries"
3220	depends on 64BIT
3221	select ARCH_WANT_OLD_COMPAT_IPC
3222	select COMPAT
3223	select MIPS32_COMPAT
3224	select SYSVIPC_COMPAT if SYSVIPC
3225	help
3226	  Select this option if you want to run o32 binaries.  These are pure
3227	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3228	  existing binaries are in this format.
3229
3230	  If unsure, say Y.
3231
3232config MIPS32_N32
3233	bool "Kernel support for n32 binaries"
3234	depends on 64BIT
3235	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3236	select COMPAT
3237	select MIPS32_COMPAT
3238	select SYSVIPC_COMPAT if SYSVIPC
3239	help
3240	  Select this option if you want to run n32 binaries.  These are
3241	  64-bit binaries using 32-bit quantities for addressing and certain
3242	  data that would normally be 64-bit.  They are used in special
3243	  cases.
3244
3245	  If unsure, say N.
3246
3247config BINFMT_ELF32
3248	bool
3249	default y if MIPS32_O32 || MIPS32_N32
3250	select ELFCORE
3251
3252menu "Power management options"
3253
3254config ARCH_HIBERNATION_POSSIBLE
3255	def_bool y
3256	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3257
3258config ARCH_SUSPEND_POSSIBLE
3259	def_bool y
3260	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3261
3262source "kernel/power/Kconfig"
3263
3264endmenu
3265
3266config MIPS_EXTERNAL_TIMER
3267	bool
3268
3269menu "CPU Power Management"
3270
3271if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3272source "drivers/cpufreq/Kconfig"
3273endif
3274
3275source "drivers/cpuidle/Kconfig"
3276
3277endmenu
3278
3279source "drivers/firmware/Kconfig"
3280
3281source "arch/mips/kvm/Kconfig"
3282
3283source "arch/mips/vdso/Kconfig"
3284