xref: /linux/arch/mips/Kconfig (revision 1abbef4f51724fb11f09adf0e75275f7cb422a8a)
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_C_RECORDMCOUNT
55	select HAVE_DEBUG_KMEMLEAK
56	select HAVE_DEBUG_STACKOVERFLOW
57	select HAVE_DMA_CONTIGUOUS
58	select HAVE_DYNAMIC_FTRACE
59	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
60	select HAVE_EXIT_THREAD
61	select HAVE_FAST_GUP
62	select HAVE_FTRACE_MCOUNT_RECORD
63	select HAVE_FUNCTION_GRAPH_TRACER
64	select HAVE_FUNCTION_TRACER
65	select HAVE_GCC_PLUGINS
66	select HAVE_GENERIC_VDSO
67	select HAVE_IDE
68	select HAVE_IOREMAP_PROT
69	select HAVE_IRQ_EXIT_ON_IRQ_STACK
70	select HAVE_IRQ_TIME_ACCOUNTING
71	select HAVE_KPROBES
72	select HAVE_KRETPROBES
73	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
74	select HAVE_MOD_ARCH_SPECIFIC
75	select HAVE_NMI
76	select HAVE_OPROFILE
77	select HAVE_PERF_EVENTS
78	select HAVE_REGS_AND_STACK_ACCESS_API
79	select HAVE_RSEQ
80	select HAVE_SPARSE_SYSCALL_NR
81	select HAVE_STACKPROTECTOR
82	select HAVE_SYSCALL_TRACEPOINTS
83	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
84	select IRQ_FORCED_THREADING
85	select ISA if EISA
86	select MODULES_USE_ELF_REL if MODULES
87	select MODULES_USE_ELF_RELA if MODULES && 64BIT
88	select PERF_USE_VMALLOC
89	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
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 DMA_OPS
371	select FW_ARC
372	select FW_ARC32
373	select ARCH_MAY_HAVE_PC_FDC
374	select CEVT_R4K
375	select CSRC_R4K
376	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
377	select GENERIC_ISA_DMA
378	select HAVE_PCSPKR_PLATFORM
379	select IRQ_MIPS_CPU
380	select I8253
381	select I8259
382	select ISA
383	select SYS_HAS_CPU_R4X00
384	select SYS_SUPPORTS_32BIT_KERNEL
385	select SYS_SUPPORTS_64BIT_KERNEL
386	select SYS_SUPPORTS_100HZ
387	help
388	  This a family of machines based on the MIPS R4030 chipset which was
389	  used by several vendors to build RISC/os and Windows NT workstations.
390	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
391	  Olivetti M700-10 workstations.
392
393config MACH_INGENIC
394	bool "Ingenic SoC based machines"
395	select SYS_SUPPORTS_32BIT_KERNEL
396	select SYS_SUPPORTS_LITTLE_ENDIAN
397	select SYS_SUPPORTS_ZBOOT_UART16550
398	select CPU_SUPPORTS_HUGEPAGES
399	select DMA_NONCOHERENT
400	select IRQ_MIPS_CPU
401	select PINCTRL
402	select GPIOLIB
403	select COMMON_CLK
404	select GENERIC_IRQ_CHIP
405	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
406	select USE_OF
407
408config LANTIQ
409	bool "Lantiq based platforms"
410	select DMA_NONCOHERENT
411	select IRQ_MIPS_CPU
412	select CEVT_R4K
413	select CSRC_R4K
414	select SYS_HAS_CPU_MIPS32_R1
415	select SYS_HAS_CPU_MIPS32_R2
416	select SYS_SUPPORTS_BIG_ENDIAN
417	select SYS_SUPPORTS_32BIT_KERNEL
418	select SYS_SUPPORTS_MIPS16
419	select SYS_SUPPORTS_MULTITHREADING
420	select SYS_SUPPORTS_VPE_LOADER
421	select SYS_HAS_EARLY_PRINTK
422	select GPIOLIB
423	select SWAP_IO_SPACE
424	select BOOT_RAW
425	select CLKDEV_LOOKUP
426	select HAVE_LEGACY_CLK
427	select USE_OF
428	select PINCTRL
429	select PINCTRL_LANTIQ
430	select ARCH_HAS_RESET_CONTROLLER
431	select RESET_CONTROLLER
432
433config MACH_LOONGSON32
434	bool "Loongson 32-bit family of machines"
435	select SYS_SUPPORTS_ZBOOT
436	help
437	  This enables support for the Loongson-1 family of machines.
438
439	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
440	  the Institute of Computing Technology (ICT), Chinese Academy of
441	  Sciences (CAS).
442
443config MACH_LOONGSON2EF
444	bool "Loongson-2E/F family of machines"
445	select SYS_SUPPORTS_ZBOOT
446	help
447	  This enables the support of early Loongson-2E/F family of machines.
448
449config MACH_LOONGSON64
450	bool "Loongson 64-bit family of machines"
451	select ARCH_SPARSEMEM_ENABLE
452	select ARCH_MIGHT_HAVE_PC_PARPORT
453	select ARCH_MIGHT_HAVE_PC_SERIO
454	select GENERIC_ISA_DMA_SUPPORT_BROKEN
455	select BOOT_ELF32
456	select BOARD_SCACHE
457	select CSRC_R4K
458	select CEVT_R4K
459	select CPU_HAS_WB
460	select FORCE_PCI
461	select ISA
462	select I8259
463	select IRQ_MIPS_CPU
464	select NO_EXCEPT_FILL
465	select NR_CPUS_DEFAULT_64
466	select USE_GENERIC_EARLY_PRINTK_8250
467	select PCI_DRIVERS_GENERIC
468	select SYS_HAS_CPU_LOONGSON64
469	select SYS_HAS_EARLY_PRINTK
470	select SYS_SUPPORTS_SMP
471	select SYS_SUPPORTS_HOTPLUG_CPU
472	select SYS_SUPPORTS_NUMA
473	select SYS_SUPPORTS_64BIT_KERNEL
474	select SYS_SUPPORTS_HIGHMEM
475	select SYS_SUPPORTS_LITTLE_ENDIAN
476	select SYS_SUPPORTS_ZBOOT
477	select ZONE_DMA32
478	select NUMA
479	select COMMON_CLK
480	select USE_OF
481	select BUILTIN_DTB
482	select PCI_HOST_GENERIC
483	help
484	  This enables the support of Loongson-2/3 family of machines.
485
486	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
487	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
488	  and Loongson-2F which will be removed), developed by the Institute
489	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
490
491config MACH_PISTACHIO
492	bool "IMG Pistachio SoC based boards"
493	select BOOT_ELF32
494	select BOOT_RAW
495	select CEVT_R4K
496	select CLKSRC_MIPS_GIC
497	select COMMON_CLK
498	select CSRC_R4K
499	select DMA_NONCOHERENT
500	select GPIOLIB
501	select IRQ_MIPS_CPU
502	select MFD_SYSCON
503	select MIPS_CPU_SCACHE
504	select MIPS_GIC
505	select PINCTRL
506	select REGULATOR
507	select SYS_HAS_CPU_MIPS32_R2
508	select SYS_SUPPORTS_32BIT_KERNEL
509	select SYS_SUPPORTS_LITTLE_ENDIAN
510	select SYS_SUPPORTS_MIPS_CPS
511	select SYS_SUPPORTS_MULTITHREADING
512	select SYS_SUPPORTS_RELOCATABLE
513	select SYS_SUPPORTS_ZBOOT
514	select SYS_HAS_EARLY_PRINTK
515	select USE_GENERIC_EARLY_PRINTK_8250
516	select USE_OF
517	help
518	  This enables support for the IMG Pistachio SoC platform.
519
520config MIPS_MALTA
521	bool "MIPS Malta board"
522	select ARCH_MAY_HAVE_PC_FDC
523	select ARCH_MIGHT_HAVE_PC_PARPORT
524	select ARCH_MIGHT_HAVE_PC_SERIO
525	select BOOT_ELF32
526	select BOOT_RAW
527	select BUILTIN_DTB
528	select CEVT_R4K
529	select CLKSRC_MIPS_GIC
530	select COMMON_CLK
531	select CSRC_R4K
532	select DMA_MAYBE_COHERENT
533	select GENERIC_ISA_DMA
534	select HAVE_PCSPKR_PLATFORM
535	select HAVE_PCI
536	select I8253
537	select I8259
538	select IRQ_MIPS_CPU
539	select MIPS_BONITO64
540	select MIPS_CPU_SCACHE
541	select MIPS_GIC
542	select MIPS_L1_CACHE_SHIFT_6
543	select MIPS_MSC
544	select PCI_GT64XXX_PCI0
545	select SMP_UP if SMP
546	select SWAP_IO_SPACE
547	select SYS_HAS_CPU_MIPS32_R1
548	select SYS_HAS_CPU_MIPS32_R2
549	select SYS_HAS_CPU_MIPS32_R3_5
550	select SYS_HAS_CPU_MIPS32_R5
551	select SYS_HAS_CPU_MIPS32_R6
552	select SYS_HAS_CPU_MIPS64_R1
553	select SYS_HAS_CPU_MIPS64_R2
554	select SYS_HAS_CPU_MIPS64_R6
555	select SYS_HAS_CPU_NEVADA
556	select SYS_HAS_CPU_RM7000
557	select SYS_SUPPORTS_32BIT_KERNEL
558	select SYS_SUPPORTS_64BIT_KERNEL
559	select SYS_SUPPORTS_BIG_ENDIAN
560	select SYS_SUPPORTS_HIGHMEM
561	select SYS_SUPPORTS_LITTLE_ENDIAN
562	select SYS_SUPPORTS_MICROMIPS
563	select SYS_SUPPORTS_MIPS16
564	select SYS_SUPPORTS_MIPS_CMP
565	select SYS_SUPPORTS_MIPS_CPS
566	select SYS_SUPPORTS_MULTITHREADING
567	select SYS_SUPPORTS_RELOCATABLE
568	select SYS_SUPPORTS_SMARTMIPS
569	select SYS_SUPPORTS_VPE_LOADER
570	select SYS_SUPPORTS_ZBOOT
571	select USE_OF
572	select ZONE_DMA32 if 64BIT
573	help
574	  This enables support for the MIPS Technologies Malta evaluation
575	  board.
576
577config MACH_PIC32
578	bool "Microchip PIC32 Family"
579	help
580	  This enables support for the Microchip PIC32 family of platforms.
581
582	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
583	  microcontrollers.
584
585config MACH_VR41XX
586	bool "NEC VR4100 series based machines"
587	select CEVT_R4K
588	select CSRC_R4K
589	select SYS_HAS_CPU_VR41XX
590	select SYS_SUPPORTS_MIPS16
591	select GPIOLIB
592
593config NXP_STB220
594	bool "NXP STB220 board"
595	select SOC_PNX833X
596	help
597	  Support for NXP Semiconductors STB220 Development Board.
598
599config NXP_STB225
600	bool "NXP 225 board"
601	select SOC_PNX833X
602	select SOC_PNX8335
603	help
604	  Support for NXP Semiconductors STB225 Development Board.
605
606config RALINK
607	bool "Ralink based machines"
608	select CEVT_R4K
609	select CSRC_R4K
610	select BOOT_RAW
611	select DMA_NONCOHERENT
612	select IRQ_MIPS_CPU
613	select USE_OF
614	select SYS_HAS_CPU_MIPS32_R1
615	select SYS_HAS_CPU_MIPS32_R2
616	select SYS_SUPPORTS_32BIT_KERNEL
617	select SYS_SUPPORTS_LITTLE_ENDIAN
618	select SYS_SUPPORTS_MIPS16
619	select SYS_HAS_EARLY_PRINTK
620	select CLKDEV_LOOKUP
621	select ARCH_HAS_RESET_CONTROLLER
622	select RESET_CONTROLLER
623
624config SGI_IP22
625	bool "SGI IP22 (Indy/Indigo2)"
626	select ARC_MEMORY
627	select ARC_PROMLIB
628	select FW_ARC
629	select FW_ARC32
630	select ARCH_MIGHT_HAVE_PC_SERIO
631	select BOOT_ELF32
632	select CEVT_R4K
633	select CSRC_R4K
634	select DEFAULT_SGI_PARTITION
635	select DMA_NONCOHERENT
636	select HAVE_EISA
637	select I8253
638	select I8259
639	select IP22_CPU_SCACHE
640	select IRQ_MIPS_CPU
641	select GENERIC_ISA_DMA_SUPPORT_BROKEN
642	select SGI_HAS_I8042
643	select SGI_HAS_INDYDOG
644	select SGI_HAS_HAL2
645	select SGI_HAS_SEEQ
646	select SGI_HAS_WD93
647	select SGI_HAS_ZILOG
648	select SWAP_IO_SPACE
649	select SYS_HAS_CPU_R4X00
650	select SYS_HAS_CPU_R5000
651	select SYS_HAS_EARLY_PRINTK
652	select SYS_SUPPORTS_32BIT_KERNEL
653	select SYS_SUPPORTS_64BIT_KERNEL
654	select SYS_SUPPORTS_BIG_ENDIAN
655	select MIPS_L1_CACHE_SHIFT_7
656	help
657	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
658	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
659	  that runs on these, say Y here.
660
661config SGI_IP27
662	bool "SGI IP27 (Origin200/2000)"
663	select ARCH_HAS_PHYS_TO_DMA
664	select ARCH_SPARSEMEM_ENABLE
665	select FW_ARC
666	select FW_ARC64
667	select ARC_CMDLINE_ONLY
668	select BOOT_ELF64
669	select DEFAULT_SGI_PARTITION
670	select SYS_HAS_EARLY_PRINTK
671	select HAVE_PCI
672	select IRQ_MIPS_CPU
673	select IRQ_DOMAIN_HIERARCHY
674	select NR_CPUS_DEFAULT_64
675	select PCI_DRIVERS_GENERIC
676	select PCI_XTALK_BRIDGE
677	select SYS_HAS_CPU_R10000
678	select SYS_SUPPORTS_64BIT_KERNEL
679	select SYS_SUPPORTS_BIG_ENDIAN
680	select SYS_SUPPORTS_NUMA
681	select SYS_SUPPORTS_SMP
682	select MIPS_L1_CACHE_SHIFT_7
683	select NUMA
684	help
685	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
686	  workstations.  To compile a Linux kernel that runs on these, say Y
687	  here.
688
689config SGI_IP28
690	bool "SGI IP28 (Indigo2 R10k)"
691	select ARC_MEMORY
692	select ARC_PROMLIB
693	select FW_ARC
694	select FW_ARC64
695	select ARCH_MIGHT_HAVE_PC_SERIO
696	select BOOT_ELF64
697	select CEVT_R4K
698	select CSRC_R4K
699	select DEFAULT_SGI_PARTITION
700	select DMA_NONCOHERENT
701	select GENERIC_ISA_DMA_SUPPORT_BROKEN
702	select IRQ_MIPS_CPU
703	select HAVE_EISA
704	select I8253
705	select I8259
706	select SGI_HAS_I8042
707	select SGI_HAS_INDYDOG
708	select SGI_HAS_HAL2
709	select SGI_HAS_SEEQ
710	select SGI_HAS_WD93
711	select SGI_HAS_ZILOG
712	select SWAP_IO_SPACE
713	select SYS_HAS_CPU_R10000
714	select SYS_HAS_EARLY_PRINTK
715	select SYS_SUPPORTS_64BIT_KERNEL
716	select SYS_SUPPORTS_BIG_ENDIAN
717	select MIPS_L1_CACHE_SHIFT_7
718	help
719	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
720	  kernel that runs on these, say Y here.
721
722config SGI_IP30
723	bool "SGI IP30 (Octane/Octane2)"
724	select ARCH_HAS_PHYS_TO_DMA
725	select FW_ARC
726	select FW_ARC64
727	select BOOT_ELF64
728	select CEVT_R4K
729	select CSRC_R4K
730	select SYNC_R4K if SMP
731	select ZONE_DMA32
732	select HAVE_PCI
733	select IRQ_MIPS_CPU
734	select IRQ_DOMAIN_HIERARCHY
735	select NR_CPUS_DEFAULT_2
736	select PCI_DRIVERS_GENERIC
737	select PCI_XTALK_BRIDGE
738	select SYS_HAS_EARLY_PRINTK
739	select SYS_HAS_CPU_R10000
740	select SYS_SUPPORTS_64BIT_KERNEL
741	select SYS_SUPPORTS_BIG_ENDIAN
742	select SYS_SUPPORTS_SMP
743	select MIPS_L1_CACHE_SHIFT_7
744	select ARC_MEMORY
745	help
746	  These are the SGI Octane and Octane2 graphics workstations.  To
747	  compile a Linux kernel that runs on these, say Y here.
748
749config SGI_IP32
750	bool "SGI IP32 (O2)"
751	select ARC_MEMORY
752	select ARC_PROMLIB
753	select ARCH_HAS_PHYS_TO_DMA
754	select FW_ARC
755	select FW_ARC32
756	select BOOT_ELF32
757	select CEVT_R4K
758	select CSRC_R4K
759	select DMA_NONCOHERENT
760	select HAVE_PCI
761	select IRQ_MIPS_CPU
762	select R5000_CPU_SCACHE
763	select RM7000_CPU_SCACHE
764	select SYS_HAS_CPU_R5000
765	select SYS_HAS_CPU_R10000 if BROKEN
766	select SYS_HAS_CPU_RM7000
767	select SYS_HAS_CPU_NEVADA
768	select SYS_SUPPORTS_64BIT_KERNEL
769	select SYS_SUPPORTS_BIG_ENDIAN
770	help
771	  If you want this kernel to run on SGI O2 workstation, say Y here.
772
773config SIBYTE_CRHINE
774	bool "Sibyte BCM91120C-CRhine"
775	select BOOT_ELF32
776	select SIBYTE_BCM1120
777	select SWAP_IO_SPACE
778	select SYS_HAS_CPU_SB1
779	select SYS_SUPPORTS_BIG_ENDIAN
780	select SYS_SUPPORTS_LITTLE_ENDIAN
781
782config SIBYTE_CARMEL
783	bool "Sibyte BCM91120x-Carmel"
784	select BOOT_ELF32
785	select SIBYTE_BCM1120
786	select SWAP_IO_SPACE
787	select SYS_HAS_CPU_SB1
788	select SYS_SUPPORTS_BIG_ENDIAN
789	select SYS_SUPPORTS_LITTLE_ENDIAN
790
791config SIBYTE_CRHONE
792	bool "Sibyte BCM91125C-CRhone"
793	select BOOT_ELF32
794	select SIBYTE_BCM1125
795	select SWAP_IO_SPACE
796	select SYS_HAS_CPU_SB1
797	select SYS_SUPPORTS_BIG_ENDIAN
798	select SYS_SUPPORTS_HIGHMEM
799	select SYS_SUPPORTS_LITTLE_ENDIAN
800
801config SIBYTE_RHONE
802	bool "Sibyte BCM91125E-Rhone"
803	select BOOT_ELF32
804	select SIBYTE_BCM1125H
805	select SWAP_IO_SPACE
806	select SYS_HAS_CPU_SB1
807	select SYS_SUPPORTS_BIG_ENDIAN
808	select SYS_SUPPORTS_LITTLE_ENDIAN
809
810config SIBYTE_SWARM
811	bool "Sibyte BCM91250A-SWARM"
812	select BOOT_ELF32
813	select HAVE_PATA_PLATFORM
814	select SIBYTE_SB1250
815	select SWAP_IO_SPACE
816	select SYS_HAS_CPU_SB1
817	select SYS_SUPPORTS_BIG_ENDIAN
818	select SYS_SUPPORTS_HIGHMEM
819	select SYS_SUPPORTS_LITTLE_ENDIAN
820	select ZONE_DMA32 if 64BIT
821	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
822
823config SIBYTE_LITTLESUR
824	bool "Sibyte BCM91250C2-LittleSur"
825	select BOOT_ELF32
826	select HAVE_PATA_PLATFORM
827	select SIBYTE_SB1250
828	select SWAP_IO_SPACE
829	select SYS_HAS_CPU_SB1
830	select SYS_SUPPORTS_BIG_ENDIAN
831	select SYS_SUPPORTS_HIGHMEM
832	select SYS_SUPPORTS_LITTLE_ENDIAN
833	select ZONE_DMA32 if 64BIT
834
835config SIBYTE_SENTOSA
836	bool "Sibyte BCM91250E-Sentosa"
837	select BOOT_ELF32
838	select SIBYTE_SB1250
839	select SWAP_IO_SPACE
840	select SYS_HAS_CPU_SB1
841	select SYS_SUPPORTS_BIG_ENDIAN
842	select SYS_SUPPORTS_LITTLE_ENDIAN
843	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
844
845config SIBYTE_BIGSUR
846	bool "Sibyte BCM91480B-BigSur"
847	select BOOT_ELF32
848	select NR_CPUS_DEFAULT_4
849	select SIBYTE_BCM1x80
850	select SWAP_IO_SPACE
851	select SYS_HAS_CPU_SB1
852	select SYS_SUPPORTS_BIG_ENDIAN
853	select SYS_SUPPORTS_HIGHMEM
854	select SYS_SUPPORTS_LITTLE_ENDIAN
855	select ZONE_DMA32 if 64BIT
856	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
857
858config SNI_RM
859	bool "SNI RM200/300/400"
860	select ARC_MEMORY
861	select ARC_PROMLIB
862	select FW_ARC if CPU_LITTLE_ENDIAN
863	select FW_ARC32 if CPU_LITTLE_ENDIAN
864	select FW_SNIPROM if CPU_BIG_ENDIAN
865	select ARCH_MAY_HAVE_PC_FDC
866	select ARCH_MIGHT_HAVE_PC_PARPORT
867	select ARCH_MIGHT_HAVE_PC_SERIO
868	select BOOT_ELF32
869	select CEVT_R4K
870	select CSRC_R4K
871	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
872	select DMA_NONCOHERENT
873	select GENERIC_ISA_DMA
874	select HAVE_EISA
875	select HAVE_PCSPKR_PLATFORM
876	select HAVE_PCI
877	select IRQ_MIPS_CPU
878	select I8253
879	select I8259
880	select ISA
881	select MIPS_L1_CACHE_SHIFT_6
882	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
883	select SYS_HAS_CPU_R4X00
884	select SYS_HAS_CPU_R5000
885	select SYS_HAS_CPU_R10000
886	select R5000_CPU_SCACHE
887	select SYS_HAS_EARLY_PRINTK
888	select SYS_SUPPORTS_32BIT_KERNEL
889	select SYS_SUPPORTS_64BIT_KERNEL
890	select SYS_SUPPORTS_BIG_ENDIAN
891	select SYS_SUPPORTS_HIGHMEM
892	select SYS_SUPPORTS_LITTLE_ENDIAN
893	help
894	  The SNI RM200/300/400 are MIPS-based machines manufactured by
895	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
896	  Technology and now in turn merged with Fujitsu.  Say Y here to
897	  support this machine type.
898
899config MACH_TX39XX
900	bool "Toshiba TX39 series based machines"
901
902config MACH_TX49XX
903	bool "Toshiba TX49 series based machines"
904
905config MIKROTIK_RB532
906	bool "Mikrotik RB532 boards"
907	select CEVT_R4K
908	select CSRC_R4K
909	select DMA_NONCOHERENT
910	select HAVE_PCI
911	select IRQ_MIPS_CPU
912	select SYS_HAS_CPU_MIPS32_R1
913	select SYS_SUPPORTS_32BIT_KERNEL
914	select SYS_SUPPORTS_LITTLE_ENDIAN
915	select SWAP_IO_SPACE
916	select BOOT_RAW
917	select GPIOLIB
918	select MIPS_L1_CACHE_SHIFT_4
919	help
920	  Support the Mikrotik(tm) RouterBoard 532 series,
921	  based on the IDT RC32434 SoC.
922
923config CAVIUM_OCTEON_SOC
924	bool "Cavium Networks Octeon SoC based boards"
925	select CEVT_R4K
926	select ARCH_HAS_PHYS_TO_DMA
927	select HAVE_RAPIDIO
928	select PHYS_ADDR_T_64BIT
929	select SYS_SUPPORTS_64BIT_KERNEL
930	select SYS_SUPPORTS_BIG_ENDIAN
931	select EDAC_SUPPORT
932	select EDAC_ATOMIC_SCRUB
933	select SYS_SUPPORTS_LITTLE_ENDIAN
934	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
935	select SYS_HAS_EARLY_PRINTK
936	select SYS_HAS_CPU_CAVIUM_OCTEON
937	select HAVE_PCI
938	select HAVE_PLAT_DELAY
939	select HAVE_PLAT_FW_INIT_CMDLINE
940	select HAVE_PLAT_MEMCPY
941	select ZONE_DMA32
942	select HOLES_IN_ZONE
943	select GPIOLIB
944	select USE_OF
945	select ARCH_SPARSEMEM_ENABLE
946	select SYS_SUPPORTS_SMP
947	select NR_CPUS_DEFAULT_64
948	select MIPS_NR_CPU_NR_MAP_1024
949	select BUILTIN_DTB
950	select MTD_COMPLEX_MAPPINGS
951	select SWIOTLB
952	select SYS_SUPPORTS_RELOCATABLE
953	help
954	  This option supports all of the Octeon reference boards from Cavium
955	  Networks. It builds a kernel that dynamically determines the Octeon
956	  CPU type and supports all known board reference implementations.
957	  Some of the supported boards are:
958		EBT3000
959		EBH3000
960		EBH3100
961		Thunder
962		Kodama
963		Hikari
964	  Say Y here for most Octeon reference boards.
965
966config NLM_XLR_BOARD
967	bool "Netlogic XLR/XLS based systems"
968	select BOOT_ELF32
969	select NLM_COMMON
970	select SYS_HAS_CPU_XLR
971	select SYS_SUPPORTS_SMP
972	select HAVE_PCI
973	select SWAP_IO_SPACE
974	select SYS_SUPPORTS_32BIT_KERNEL
975	select SYS_SUPPORTS_64BIT_KERNEL
976	select PHYS_ADDR_T_64BIT
977	select SYS_SUPPORTS_BIG_ENDIAN
978	select SYS_SUPPORTS_HIGHMEM
979	select NR_CPUS_DEFAULT_32
980	select CEVT_R4K
981	select CSRC_R4K
982	select IRQ_MIPS_CPU
983	select ZONE_DMA32 if 64BIT
984	select SYNC_R4K
985	select SYS_HAS_EARLY_PRINTK
986	select SYS_SUPPORTS_ZBOOT
987	select SYS_SUPPORTS_ZBOOT_UART16550
988	help
989	  Support for systems based on Netlogic XLR and XLS processors.
990	  Say Y here if you have a XLR or XLS based board.
991
992config NLM_XLP_BOARD
993	bool "Netlogic XLP based systems"
994	select BOOT_ELF32
995	select NLM_COMMON
996	select SYS_HAS_CPU_XLP
997	select SYS_SUPPORTS_SMP
998	select HAVE_PCI
999	select SYS_SUPPORTS_32BIT_KERNEL
1000	select SYS_SUPPORTS_64BIT_KERNEL
1001	select PHYS_ADDR_T_64BIT
1002	select GPIOLIB
1003	select SYS_SUPPORTS_BIG_ENDIAN
1004	select SYS_SUPPORTS_LITTLE_ENDIAN
1005	select SYS_SUPPORTS_HIGHMEM
1006	select NR_CPUS_DEFAULT_32
1007	select CEVT_R4K
1008	select CSRC_R4K
1009	select IRQ_MIPS_CPU
1010	select ZONE_DMA32 if 64BIT
1011	select SYNC_R4K
1012	select SYS_HAS_EARLY_PRINTK
1013	select USE_OF
1014	select SYS_SUPPORTS_ZBOOT
1015	select SYS_SUPPORTS_ZBOOT_UART16550
1016	help
1017	  This board is based on Netlogic XLP Processor.
1018	  Say Y here if you have a XLP based board.
1019
1020endchoice
1021
1022source "arch/mips/alchemy/Kconfig"
1023source "arch/mips/ath25/Kconfig"
1024source "arch/mips/ath79/Kconfig"
1025source "arch/mips/bcm47xx/Kconfig"
1026source "arch/mips/bcm63xx/Kconfig"
1027source "arch/mips/bmips/Kconfig"
1028source "arch/mips/generic/Kconfig"
1029source "arch/mips/jazz/Kconfig"
1030source "arch/mips/jz4740/Kconfig"
1031source "arch/mips/lantiq/Kconfig"
1032source "arch/mips/pic32/Kconfig"
1033source "arch/mips/pistachio/Kconfig"
1034source "arch/mips/ralink/Kconfig"
1035source "arch/mips/sgi-ip27/Kconfig"
1036source "arch/mips/sibyte/Kconfig"
1037source "arch/mips/txx9/Kconfig"
1038source "arch/mips/vr41xx/Kconfig"
1039source "arch/mips/cavium-octeon/Kconfig"
1040source "arch/mips/loongson2ef/Kconfig"
1041source "arch/mips/loongson32/Kconfig"
1042source "arch/mips/loongson64/Kconfig"
1043source "arch/mips/netlogic/Kconfig"
1044
1045endmenu
1046
1047config GENERIC_HWEIGHT
1048	bool
1049	default y
1050
1051config GENERIC_CALIBRATE_DELAY
1052	bool
1053	default y
1054
1055config SCHED_OMIT_FRAME_POINTER
1056	bool
1057	default y
1058
1059#
1060# Select some configuration options automatically based on user selections.
1061#
1062config FW_ARC
1063	bool
1064
1065config ARCH_MAY_HAVE_PC_FDC
1066	bool
1067
1068config BOOT_RAW
1069	bool
1070
1071config CEVT_BCM1480
1072	bool
1073
1074config CEVT_DS1287
1075	bool
1076
1077config CEVT_GT641XX
1078	bool
1079
1080config CEVT_R4K
1081	bool
1082
1083config CEVT_SB1250
1084	bool
1085
1086config CEVT_TXX9
1087	bool
1088
1089config CSRC_BCM1480
1090	bool
1091
1092config CSRC_IOASIC
1093	bool
1094
1095config CSRC_R4K
1096	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1097	bool
1098
1099config CSRC_SB1250
1100	bool
1101
1102config MIPS_CLOCK_VSYSCALL
1103	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1104
1105config GPIO_TXX9
1106	select GPIOLIB
1107	bool
1108
1109config FW_CFE
1110	bool
1111
1112config ARCH_SUPPORTS_UPROBES
1113	bool
1114
1115config DMA_MAYBE_COHERENT
1116	select ARCH_HAS_DMA_COHERENCE_H
1117	select DMA_NONCOHERENT
1118	bool
1119
1120config DMA_PERDEV_COHERENT
1121	bool
1122	select ARCH_HAS_SETUP_DMA_OPS
1123	select DMA_NONCOHERENT
1124
1125config DMA_NONCOHERENT
1126	bool
1127	#
1128	# MIPS allows mixing "slightly different" Cacheability and Coherency
1129	# Attribute bits.  It is believed that the uncached access through
1130	# KSEG1 and the implementation specific "uncached accelerated" used
1131	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1132	# significant advantages.
1133	#
1134	select ARCH_HAS_DMA_WRITE_COMBINE
1135	select ARCH_HAS_DMA_PREP_COHERENT
1136	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1137	select ARCH_HAS_DMA_SET_UNCACHED
1138	select DMA_NONCOHERENT_MMAP
1139	select DMA_NONCOHERENT_CACHE_SYNC
1140	select NEED_DMA_MAP_STATE
1141
1142config SYS_HAS_EARLY_PRINTK
1143	bool
1144
1145config SYS_SUPPORTS_HOTPLUG_CPU
1146	bool
1147
1148config MIPS_BONITO64
1149	bool
1150
1151config MIPS_MSC
1152	bool
1153
1154config SYNC_R4K
1155	bool
1156
1157config NO_IOPORT_MAP
1158	def_bool n
1159
1160config GENERIC_CSUM
1161	def_bool CPU_NO_LOAD_STORE_LR
1162
1163config GENERIC_ISA_DMA
1164	bool
1165	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1166	select ISA_DMA_API
1167
1168config GENERIC_ISA_DMA_SUPPORT_BROKEN
1169	bool
1170	select GENERIC_ISA_DMA
1171
1172config HAVE_PLAT_DELAY
1173	bool
1174
1175config HAVE_PLAT_FW_INIT_CMDLINE
1176	bool
1177
1178config HAVE_PLAT_MEMCPY
1179	bool
1180
1181config ISA_DMA_API
1182	bool
1183
1184config HOLES_IN_ZONE
1185	bool
1186
1187config SYS_SUPPORTS_RELOCATABLE
1188	bool
1189	help
1190	  Selected if the platform supports relocating the kernel.
1191	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1192	  to allow access to command line and entropy sources.
1193
1194config MIPS_CBPF_JIT
1195	def_bool y
1196	depends on BPF_JIT && HAVE_CBPF_JIT
1197
1198config MIPS_EBPF_JIT
1199	def_bool y
1200	depends on BPF_JIT && HAVE_EBPF_JIT
1201
1202
1203#
1204# Endianness selection.  Sufficiently obscure so many users don't know what to
1205# answer,so we try hard to limit the available choices.  Also the use of a
1206# choice statement should be more obvious to the user.
1207#
1208choice
1209	prompt "Endianness selection"
1210	help
1211	  Some MIPS machines can be configured for either little or big endian
1212	  byte order. These modes require different kernels and a different
1213	  Linux distribution.  In general there is one preferred byteorder for a
1214	  particular system but some systems are just as commonly used in the
1215	  one or the other endianness.
1216
1217config CPU_BIG_ENDIAN
1218	bool "Big endian"
1219	depends on SYS_SUPPORTS_BIG_ENDIAN
1220
1221config CPU_LITTLE_ENDIAN
1222	bool "Little endian"
1223	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1224
1225endchoice
1226
1227config EXPORT_UASM
1228	bool
1229
1230config SYS_SUPPORTS_APM_EMULATION
1231	bool
1232
1233config SYS_SUPPORTS_BIG_ENDIAN
1234	bool
1235
1236config SYS_SUPPORTS_LITTLE_ENDIAN
1237	bool
1238
1239config SYS_SUPPORTS_HUGETLBFS
1240	bool
1241	depends on CPU_SUPPORTS_HUGEPAGES
1242	default y
1243
1244config MIPS_HUGE_TLB_SUPPORT
1245	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1246
1247config IRQ_CPU_RM7K
1248	bool
1249
1250config IRQ_MSP_SLP
1251	bool
1252
1253config IRQ_MSP_CIC
1254	bool
1255
1256config IRQ_TXX9
1257	bool
1258
1259config IRQ_GT641XX
1260	bool
1261
1262config PCI_GT64XXX_PCI0
1263	bool
1264
1265config PCI_XTALK_BRIDGE
1266	bool
1267
1268config NO_EXCEPT_FILL
1269	bool
1270
1271config SOC_PNX833X
1272	bool
1273	select CEVT_R4K
1274	select CSRC_R4K
1275	select IRQ_MIPS_CPU
1276	select DMA_NONCOHERENT
1277	select SYS_HAS_CPU_MIPS32_R2
1278	select SYS_SUPPORTS_32BIT_KERNEL
1279	select SYS_SUPPORTS_LITTLE_ENDIAN
1280	select SYS_SUPPORTS_BIG_ENDIAN
1281	select SYS_SUPPORTS_MIPS16
1282	select CPU_MIPSR2_IRQ_VI
1283
1284config SOC_PNX8335
1285	bool
1286	select SOC_PNX833X
1287
1288config MIPS_SPRAM
1289	bool
1290
1291config SWAP_IO_SPACE
1292	bool
1293
1294config SGI_HAS_INDYDOG
1295	bool
1296
1297config SGI_HAS_HAL2
1298	bool
1299
1300config SGI_HAS_SEEQ
1301	bool
1302
1303config SGI_HAS_WD93
1304	bool
1305
1306config SGI_HAS_ZILOG
1307	bool
1308
1309config SGI_HAS_I8042
1310	bool
1311
1312config DEFAULT_SGI_PARTITION
1313	bool
1314
1315config FW_ARC32
1316	bool
1317
1318config FW_SNIPROM
1319	bool
1320
1321config BOOT_ELF32
1322	bool
1323
1324config MIPS_L1_CACHE_SHIFT_4
1325	bool
1326
1327config MIPS_L1_CACHE_SHIFT_5
1328	bool
1329
1330config MIPS_L1_CACHE_SHIFT_6
1331	bool
1332
1333config MIPS_L1_CACHE_SHIFT_7
1334	bool
1335
1336config MIPS_L1_CACHE_SHIFT
1337	int
1338	default "7" if MIPS_L1_CACHE_SHIFT_7
1339	default "6" if MIPS_L1_CACHE_SHIFT_6
1340	default "5" if MIPS_L1_CACHE_SHIFT_5
1341	default "4" if MIPS_L1_CACHE_SHIFT_4
1342	default "5"
1343
1344config ARC_CMDLINE_ONLY
1345	bool
1346
1347config ARC_CONSOLE
1348	bool "ARC console support"
1349	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1350
1351config ARC_MEMORY
1352	bool
1353
1354config ARC_PROMLIB
1355	bool
1356
1357config FW_ARC64
1358	bool
1359
1360config BOOT_ELF64
1361	bool
1362
1363menu "CPU selection"
1364
1365choice
1366	prompt "CPU type"
1367	default CPU_R4X00
1368
1369config CPU_LOONGSON64
1370	bool "Loongson 64-bit CPU"
1371	depends on SYS_HAS_CPU_LOONGSON64
1372	select ARCH_HAS_PHYS_TO_DMA
1373	select CPU_MIPSR2
1374	select CPU_HAS_PREFETCH
1375	select CPU_SUPPORTS_64BIT_KERNEL
1376	select CPU_SUPPORTS_HIGHMEM
1377	select CPU_SUPPORTS_HUGEPAGES
1378	select CPU_SUPPORTS_MSA
1379	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1380	select CPU_MIPSR2_IRQ_VI
1381	select WEAK_ORDERING
1382	select WEAK_REORDERING_BEYOND_LLSC
1383	select MIPS_ASID_BITS_VARIABLE
1384	select MIPS_PGD_C0_CONTEXT
1385	select MIPS_L1_CACHE_SHIFT_6
1386	select GPIOLIB
1387	select SWIOTLB
1388	select HAVE_KVM
1389	help
1390		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1391		cores implements the MIPS64R2 instruction set with many extensions,
1392		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1393		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1394		Loongson-2E/2F is not covered here and will be removed in future.
1395
1396config LOONGSON3_ENHANCEMENT
1397	bool "New Loongson-3 CPU Enhancements"
1398	default n
1399	depends on CPU_LOONGSON64
1400	help
1401	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1402	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1403	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1404	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1405	  Fast TLB refill support, etc.
1406
1407	  This option enable those enhancements which are not probed at run
1408	  time. If you want a generic kernel to run on all Loongson 3 machines,
1409	  please say 'N' here. If you want a high-performance kernel to run on
1410	  new Loongson-3 machines only, please say 'Y' here.
1411
1412config CPU_LOONGSON3_WORKAROUNDS
1413	bool "Old Loongson-3 LLSC Workarounds"
1414	default y if SMP
1415	depends on CPU_LOONGSON64
1416	help
1417	  Loongson-3 processors have the llsc issues which require workarounds.
1418	  Without workarounds the system may hang unexpectedly.
1419
1420	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1421	  The workarounds have no significant side effect on them but may
1422	  decrease the performance of the system so this option should be
1423	  disabled unless the kernel is intended to be run on old systems.
1424
1425	  If unsure, please say Y.
1426
1427config CPU_LOONGSON3_CPUCFG_EMULATION
1428	bool "Emulate the CPUCFG instruction on older Loongson cores"
1429	default y
1430	depends on CPU_LOONGSON64
1431	help
1432	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1433	  userland to query CPU capabilities, much like CPUID on x86. This
1434	  option provides emulation of the instruction on older Loongson
1435	  cores, back to Loongson-3A1000.
1436
1437	  If unsure, please say Y.
1438
1439config CPU_LOONGSON2E
1440	bool "Loongson 2E"
1441	depends on SYS_HAS_CPU_LOONGSON2E
1442	select CPU_LOONGSON2EF
1443	help
1444	  The Loongson 2E processor implements the MIPS III instruction set
1445	  with many extensions.
1446
1447	  It has an internal FPGA northbridge, which is compatible to
1448	  bonito64.
1449
1450config CPU_LOONGSON2F
1451	bool "Loongson 2F"
1452	depends on SYS_HAS_CPU_LOONGSON2F
1453	select CPU_LOONGSON2EF
1454	select GPIOLIB
1455	help
1456	  The Loongson 2F processor implements the MIPS III instruction set
1457	  with many extensions.
1458
1459	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1460	  have a similar programming interface with FPGA northbridge used in
1461	  Loongson2E.
1462
1463config CPU_LOONGSON1B
1464	bool "Loongson 1B"
1465	depends on SYS_HAS_CPU_LOONGSON1B
1466	select CPU_LOONGSON32
1467	select LEDS_GPIO_REGISTER
1468	help
1469	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1470	  Release 1 instruction set and part of the MIPS32 Release 2
1471	  instruction set.
1472
1473config CPU_LOONGSON1C
1474	bool "Loongson 1C"
1475	depends on SYS_HAS_CPU_LOONGSON1C
1476	select CPU_LOONGSON32
1477	select LEDS_GPIO_REGISTER
1478	help
1479	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1480	  Release 1 instruction set and part of the MIPS32 Release 2
1481	  instruction set.
1482
1483config CPU_MIPS32_R1
1484	bool "MIPS32 Release 1"
1485	depends on SYS_HAS_CPU_MIPS32_R1
1486	select CPU_HAS_PREFETCH
1487	select CPU_SUPPORTS_32BIT_KERNEL
1488	select CPU_SUPPORTS_HIGHMEM
1489	help
1490	  Choose this option to build a kernel for release 1 or later of the
1491	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1492	  MIPS processor are based on a MIPS32 processor.  If you know the
1493	  specific type of processor in your system, choose those that one
1494	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1495	  Release 2 of the MIPS32 architecture is available since several
1496	  years so chances are you even have a MIPS32 Release 2 processor
1497	  in which case you should choose CPU_MIPS32_R2 instead for better
1498	  performance.
1499
1500config CPU_MIPS32_R2
1501	bool "MIPS32 Release 2"
1502	depends on SYS_HAS_CPU_MIPS32_R2
1503	select CPU_HAS_PREFETCH
1504	select CPU_SUPPORTS_32BIT_KERNEL
1505	select CPU_SUPPORTS_HIGHMEM
1506	select CPU_SUPPORTS_MSA
1507	select HAVE_KVM
1508	help
1509	  Choose this option to build a kernel for release 2 or later of the
1510	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1511	  MIPS processor are based on a MIPS32 processor.  If you know the
1512	  specific type of processor in your system, choose those that one
1513	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1514
1515config CPU_MIPS32_R5
1516	bool "MIPS32 Release 5"
1517	depends on SYS_HAS_CPU_MIPS32_R5
1518	select CPU_HAS_PREFETCH
1519	select CPU_SUPPORTS_32BIT_KERNEL
1520	select CPU_SUPPORTS_HIGHMEM
1521	select CPU_SUPPORTS_MSA
1522	select HAVE_KVM
1523	select MIPS_O32_FP64_SUPPORT
1524	help
1525	  Choose this option to build a kernel for release 5 or later of the
1526	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1527	  family, are based on a MIPS32r5 processor. If you own an older
1528	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1529
1530config CPU_MIPS32_R6
1531	bool "MIPS32 Release 6"
1532	depends on SYS_HAS_CPU_MIPS32_R6
1533	select CPU_HAS_PREFETCH
1534	select CPU_NO_LOAD_STORE_LR
1535	select CPU_SUPPORTS_32BIT_KERNEL
1536	select CPU_SUPPORTS_HIGHMEM
1537	select CPU_SUPPORTS_MSA
1538	select HAVE_KVM
1539	select MIPS_O32_FP64_SUPPORT
1540	help
1541	  Choose this option to build a kernel for release 6 or later of the
1542	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1543	  family, are based on a MIPS32r6 processor. If you own an older
1544	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1545
1546config CPU_MIPS64_R1
1547	bool "MIPS64 Release 1"
1548	depends on SYS_HAS_CPU_MIPS64_R1
1549	select CPU_HAS_PREFETCH
1550	select CPU_SUPPORTS_32BIT_KERNEL
1551	select CPU_SUPPORTS_64BIT_KERNEL
1552	select CPU_SUPPORTS_HIGHMEM
1553	select CPU_SUPPORTS_HUGEPAGES
1554	help
1555	  Choose this option to build a kernel for release 1 or later of the
1556	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1557	  MIPS processor are based on a MIPS64 processor.  If you know the
1558	  specific type of processor in your system, choose those that one
1559	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1560	  Release 2 of the MIPS64 architecture is available since several
1561	  years so chances are you even have a MIPS64 Release 2 processor
1562	  in which case you should choose CPU_MIPS64_R2 instead for better
1563	  performance.
1564
1565config CPU_MIPS64_R2
1566	bool "MIPS64 Release 2"
1567	depends on SYS_HAS_CPU_MIPS64_R2
1568	select CPU_HAS_PREFETCH
1569	select CPU_SUPPORTS_32BIT_KERNEL
1570	select CPU_SUPPORTS_64BIT_KERNEL
1571	select CPU_SUPPORTS_HIGHMEM
1572	select CPU_SUPPORTS_HUGEPAGES
1573	select CPU_SUPPORTS_MSA
1574	select HAVE_KVM
1575	help
1576	  Choose this option to build a kernel for release 2 or later of the
1577	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1578	  MIPS processor are based on a MIPS64 processor.  If you know the
1579	  specific type of processor in your system, choose those that one
1580	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1581
1582config CPU_MIPS64_R5
1583	bool "MIPS64 Release 5"
1584	depends on SYS_HAS_CPU_MIPS64_R5
1585	select CPU_HAS_PREFETCH
1586	select CPU_SUPPORTS_32BIT_KERNEL
1587	select CPU_SUPPORTS_64BIT_KERNEL
1588	select CPU_SUPPORTS_HIGHMEM
1589	select CPU_SUPPORTS_HUGEPAGES
1590	select CPU_SUPPORTS_MSA
1591	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1592	select HAVE_KVM
1593	help
1594	  Choose this option to build a kernel for release 5 or later of the
1595	  MIPS64 architecture.  This is a intermediate MIPS architecture
1596	  release partly implementing release 6 features. Though there is no
1597	  any hardware known to be based on this release.
1598
1599config CPU_MIPS64_R6
1600	bool "MIPS64 Release 6"
1601	depends on SYS_HAS_CPU_MIPS64_R6
1602	select CPU_HAS_PREFETCH
1603	select CPU_NO_LOAD_STORE_LR
1604	select CPU_SUPPORTS_32BIT_KERNEL
1605	select CPU_SUPPORTS_64BIT_KERNEL
1606	select CPU_SUPPORTS_HIGHMEM
1607	select CPU_SUPPORTS_HUGEPAGES
1608	select CPU_SUPPORTS_MSA
1609	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1610	select HAVE_KVM
1611	help
1612	  Choose this option to build a kernel for release 6 or later of the
1613	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1614	  family, are based on a MIPS64r6 processor. If you own an older
1615	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1616
1617config CPU_P5600
1618	bool "MIPS Warrior P5600"
1619	depends on SYS_HAS_CPU_P5600
1620	select CPU_HAS_PREFETCH
1621	select CPU_SUPPORTS_32BIT_KERNEL
1622	select CPU_SUPPORTS_HIGHMEM
1623	select CPU_SUPPORTS_MSA
1624	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1625	select CPU_SUPPORTS_CPUFREQ
1626	select CPU_MIPSR2_IRQ_VI
1627	select CPU_MIPSR2_IRQ_EI
1628	select HAVE_KVM
1629	select MIPS_O32_FP64_SUPPORT
1630	help
1631	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1632	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1633	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1634	  level features like up to six P5600 calculation cores, CM2 with L2
1635	  cache, IOCU/IOMMU (though might be unused depending on the system-
1636	  specific IP core configuration), GIC, CPC, virtualisation module,
1637	  eJTAG and PDtrace.
1638
1639config CPU_R3000
1640	bool "R3000"
1641	depends on SYS_HAS_CPU_R3000
1642	select CPU_HAS_WB
1643	select CPU_R3K_TLB
1644	select CPU_SUPPORTS_32BIT_KERNEL
1645	select CPU_SUPPORTS_HIGHMEM
1646	help
1647	  Please make sure to pick the right CPU type. Linux/MIPS is not
1648	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1649	  *not* work on R4000 machines and vice versa.  However, since most
1650	  of the supported machines have an R4000 (or similar) CPU, R4x00
1651	  might be a safe bet.  If the resulting kernel does not work,
1652	  try to recompile with R3000.
1653
1654config CPU_TX39XX
1655	bool "R39XX"
1656	depends on SYS_HAS_CPU_TX39XX
1657	select CPU_SUPPORTS_32BIT_KERNEL
1658	select CPU_R3K_TLB
1659
1660config CPU_VR41XX
1661	bool "R41xx"
1662	depends on SYS_HAS_CPU_VR41XX
1663	select CPU_SUPPORTS_32BIT_KERNEL
1664	select CPU_SUPPORTS_64BIT_KERNEL
1665	help
1666	  The options selects support for the NEC VR4100 series of processors.
1667	  Only choose this option if you have one of these processors as a
1668	  kernel built with this option will not run on any other type of
1669	  processor or vice versa.
1670
1671config CPU_R4X00
1672	bool "R4x00"
1673	depends on SYS_HAS_CPU_R4X00
1674	select CPU_SUPPORTS_32BIT_KERNEL
1675	select CPU_SUPPORTS_64BIT_KERNEL
1676	select CPU_SUPPORTS_HUGEPAGES
1677	help
1678	  MIPS Technologies R4000-series processors other than 4300, including
1679	  the R4000, R4400, R4600, and 4700.
1680
1681config CPU_TX49XX
1682	bool "R49XX"
1683	depends on SYS_HAS_CPU_TX49XX
1684	select CPU_HAS_PREFETCH
1685	select CPU_SUPPORTS_32BIT_KERNEL
1686	select CPU_SUPPORTS_64BIT_KERNEL
1687	select CPU_SUPPORTS_HUGEPAGES
1688
1689config CPU_R5000
1690	bool "R5000"
1691	depends on SYS_HAS_CPU_R5000
1692	select CPU_SUPPORTS_32BIT_KERNEL
1693	select CPU_SUPPORTS_64BIT_KERNEL
1694	select CPU_SUPPORTS_HUGEPAGES
1695	help
1696	  MIPS Technologies R5000-series processors other than the Nevada.
1697
1698config CPU_R5500
1699	bool "R5500"
1700	depends on SYS_HAS_CPU_R5500
1701	select CPU_SUPPORTS_32BIT_KERNEL
1702	select CPU_SUPPORTS_64BIT_KERNEL
1703	select CPU_SUPPORTS_HUGEPAGES
1704	help
1705	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1706	  instruction set.
1707
1708config CPU_NEVADA
1709	bool "RM52xx"
1710	depends on SYS_HAS_CPU_NEVADA
1711	select CPU_SUPPORTS_32BIT_KERNEL
1712	select CPU_SUPPORTS_64BIT_KERNEL
1713	select CPU_SUPPORTS_HUGEPAGES
1714	help
1715	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1716
1717config CPU_R10000
1718	bool "R10000"
1719	depends on SYS_HAS_CPU_R10000
1720	select CPU_HAS_PREFETCH
1721	select CPU_SUPPORTS_32BIT_KERNEL
1722	select CPU_SUPPORTS_64BIT_KERNEL
1723	select CPU_SUPPORTS_HIGHMEM
1724	select CPU_SUPPORTS_HUGEPAGES
1725	help
1726	  MIPS Technologies R10000-series processors.
1727
1728config CPU_RM7000
1729	bool "RM7000"
1730	depends on SYS_HAS_CPU_RM7000
1731	select CPU_HAS_PREFETCH
1732	select CPU_SUPPORTS_32BIT_KERNEL
1733	select CPU_SUPPORTS_64BIT_KERNEL
1734	select CPU_SUPPORTS_HIGHMEM
1735	select CPU_SUPPORTS_HUGEPAGES
1736
1737config CPU_SB1
1738	bool "SB1"
1739	depends on SYS_HAS_CPU_SB1
1740	select CPU_SUPPORTS_32BIT_KERNEL
1741	select CPU_SUPPORTS_64BIT_KERNEL
1742	select CPU_SUPPORTS_HIGHMEM
1743	select CPU_SUPPORTS_HUGEPAGES
1744	select WEAK_ORDERING
1745
1746config CPU_CAVIUM_OCTEON
1747	bool "Cavium Octeon processor"
1748	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1749	select CPU_HAS_PREFETCH
1750	select CPU_SUPPORTS_64BIT_KERNEL
1751	select WEAK_ORDERING
1752	select CPU_SUPPORTS_HIGHMEM
1753	select CPU_SUPPORTS_HUGEPAGES
1754	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1755	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1756	select MIPS_L1_CACHE_SHIFT_7
1757	select HAVE_KVM
1758	help
1759	  The Cavium Octeon processor is a highly integrated chip containing
1760	  many ethernet hardware widgets for networking tasks. The processor
1761	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1762	  Full details can be found at http://www.caviumnetworks.com.
1763
1764config CPU_BMIPS
1765	bool "Broadcom BMIPS"
1766	depends on SYS_HAS_CPU_BMIPS
1767	select CPU_MIPS32
1768	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1769	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1770	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1771	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1772	select CPU_SUPPORTS_32BIT_KERNEL
1773	select DMA_NONCOHERENT
1774	select IRQ_MIPS_CPU
1775	select SWAP_IO_SPACE
1776	select WEAK_ORDERING
1777	select CPU_SUPPORTS_HIGHMEM
1778	select CPU_HAS_PREFETCH
1779	select CPU_SUPPORTS_CPUFREQ
1780	select MIPS_EXTERNAL_TIMER
1781	help
1782	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1783
1784config CPU_XLR
1785	bool "Netlogic XLR SoC"
1786	depends on SYS_HAS_CPU_XLR
1787	select CPU_SUPPORTS_32BIT_KERNEL
1788	select CPU_SUPPORTS_64BIT_KERNEL
1789	select CPU_SUPPORTS_HIGHMEM
1790	select CPU_SUPPORTS_HUGEPAGES
1791	select WEAK_ORDERING
1792	select WEAK_REORDERING_BEYOND_LLSC
1793	help
1794	  Netlogic Microsystems XLR/XLS processors.
1795
1796config CPU_XLP
1797	bool "Netlogic XLP SoC"
1798	depends on SYS_HAS_CPU_XLP
1799	select CPU_SUPPORTS_32BIT_KERNEL
1800	select CPU_SUPPORTS_64BIT_KERNEL
1801	select CPU_SUPPORTS_HIGHMEM
1802	select WEAK_ORDERING
1803	select WEAK_REORDERING_BEYOND_LLSC
1804	select CPU_HAS_PREFETCH
1805	select CPU_MIPSR2
1806	select CPU_SUPPORTS_HUGEPAGES
1807	select MIPS_ASID_BITS_VARIABLE
1808	help
1809	  Netlogic Microsystems XLP processors.
1810endchoice
1811
1812config CPU_MIPS32_3_5_FEATURES
1813	bool "MIPS32 Release 3.5 Features"
1814	depends on SYS_HAS_CPU_MIPS32_R3_5
1815	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1816		   CPU_P5600
1817	help
1818	  Choose this option to build a kernel for release 2 or later of the
1819	  MIPS32 architecture including features from the 3.5 release such as
1820	  support for Enhanced Virtual Addressing (EVA).
1821
1822config CPU_MIPS32_3_5_EVA
1823	bool "Enhanced Virtual Addressing (EVA)"
1824	depends on CPU_MIPS32_3_5_FEATURES
1825	select EVA
1826	default y
1827	help
1828	  Choose this option if you want to enable the Enhanced Virtual
1829	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1830	  One of its primary benefits is an increase in the maximum size
1831	  of lowmem (up to 3GB). If unsure, say 'N' here.
1832
1833config CPU_MIPS32_R5_FEATURES
1834	bool "MIPS32 Release 5 Features"
1835	depends on SYS_HAS_CPU_MIPS32_R5
1836	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1837	help
1838	  Choose this option to build a kernel for release 2 or later of the
1839	  MIPS32 architecture including features from release 5 such as
1840	  support for Extended Physical Addressing (XPA).
1841
1842config CPU_MIPS32_R5_XPA
1843	bool "Extended Physical Addressing (XPA)"
1844	depends on CPU_MIPS32_R5_FEATURES
1845	depends on !EVA
1846	depends on !PAGE_SIZE_4KB
1847	depends on SYS_SUPPORTS_HIGHMEM
1848	select XPA
1849	select HIGHMEM
1850	select PHYS_ADDR_T_64BIT
1851	default n
1852	help
1853	  Choose this option if you want to enable the Extended Physical
1854	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1855	  benefit is to increase physical addressing equal to or greater
1856	  than 40 bits. Note that this has the side effect of turning on
1857	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1858	  If unsure, say 'N' here.
1859
1860if CPU_LOONGSON2F
1861config CPU_NOP_WORKAROUNDS
1862	bool
1863
1864config CPU_JUMP_WORKAROUNDS
1865	bool
1866
1867config CPU_LOONGSON2F_WORKAROUNDS
1868	bool "Loongson 2F Workarounds"
1869	default y
1870	select CPU_NOP_WORKAROUNDS
1871	select CPU_JUMP_WORKAROUNDS
1872	help
1873	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1874	  require workarounds.  Without workarounds the system may hang
1875	  unexpectedly.  For more information please refer to the gas
1876	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1877
1878	  Loongson 2F03 and later have fixed these issues and no workarounds
1879	  are needed.  The workarounds have no significant side effect on them
1880	  but may decrease the performance of the system so this option should
1881	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1882	  systems.
1883
1884	  If unsure, please say Y.
1885endif # CPU_LOONGSON2F
1886
1887config SYS_SUPPORTS_ZBOOT
1888	bool
1889	select HAVE_KERNEL_GZIP
1890	select HAVE_KERNEL_BZIP2
1891	select HAVE_KERNEL_LZ4
1892	select HAVE_KERNEL_LZMA
1893	select HAVE_KERNEL_LZO
1894	select HAVE_KERNEL_XZ
1895
1896config SYS_SUPPORTS_ZBOOT_UART16550
1897	bool
1898	select SYS_SUPPORTS_ZBOOT
1899
1900config SYS_SUPPORTS_ZBOOT_UART_PROM
1901	bool
1902	select SYS_SUPPORTS_ZBOOT
1903
1904config CPU_LOONGSON2EF
1905	bool
1906	select CPU_SUPPORTS_32BIT_KERNEL
1907	select CPU_SUPPORTS_64BIT_KERNEL
1908	select CPU_SUPPORTS_HIGHMEM
1909	select CPU_SUPPORTS_HUGEPAGES
1910	select ARCH_HAS_PHYS_TO_DMA
1911
1912config CPU_LOONGSON32
1913	bool
1914	select CPU_MIPS32
1915	select CPU_MIPSR2
1916	select CPU_HAS_PREFETCH
1917	select CPU_SUPPORTS_32BIT_KERNEL
1918	select CPU_SUPPORTS_HIGHMEM
1919	select CPU_SUPPORTS_CPUFREQ
1920
1921config CPU_BMIPS32_3300
1922	select SMP_UP if SMP
1923	bool
1924
1925config CPU_BMIPS4350
1926	bool
1927	select SYS_SUPPORTS_SMP
1928	select SYS_SUPPORTS_HOTPLUG_CPU
1929
1930config CPU_BMIPS4380
1931	bool
1932	select MIPS_L1_CACHE_SHIFT_6
1933	select SYS_SUPPORTS_SMP
1934	select SYS_SUPPORTS_HOTPLUG_CPU
1935	select CPU_HAS_RIXI
1936
1937config CPU_BMIPS5000
1938	bool
1939	select MIPS_CPU_SCACHE
1940	select MIPS_L1_CACHE_SHIFT_7
1941	select SYS_SUPPORTS_SMP
1942	select SYS_SUPPORTS_HOTPLUG_CPU
1943	select CPU_HAS_RIXI
1944
1945config SYS_HAS_CPU_LOONGSON64
1946	bool
1947	select CPU_SUPPORTS_CPUFREQ
1948	select CPU_HAS_RIXI
1949
1950config SYS_HAS_CPU_LOONGSON2E
1951	bool
1952
1953config SYS_HAS_CPU_LOONGSON2F
1954	bool
1955	select CPU_SUPPORTS_CPUFREQ
1956	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1957
1958config SYS_HAS_CPU_LOONGSON1B
1959	bool
1960
1961config SYS_HAS_CPU_LOONGSON1C
1962	bool
1963
1964config SYS_HAS_CPU_MIPS32_R1
1965	bool
1966
1967config SYS_HAS_CPU_MIPS32_R2
1968	bool
1969
1970config SYS_HAS_CPU_MIPS32_R3_5
1971	bool
1972
1973config SYS_HAS_CPU_MIPS32_R5
1974	bool
1975	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1976
1977config SYS_HAS_CPU_MIPS32_R6
1978	bool
1979	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1980
1981config SYS_HAS_CPU_MIPS64_R1
1982	bool
1983
1984config SYS_HAS_CPU_MIPS64_R2
1985	bool
1986
1987config SYS_HAS_CPU_MIPS64_R6
1988	bool
1989	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1990
1991config SYS_HAS_CPU_P5600
1992	bool
1993	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1994
1995config SYS_HAS_CPU_R3000
1996	bool
1997
1998config SYS_HAS_CPU_TX39XX
1999	bool
2000
2001config SYS_HAS_CPU_VR41XX
2002	bool
2003
2004config SYS_HAS_CPU_R4X00
2005	bool
2006
2007config SYS_HAS_CPU_TX49XX
2008	bool
2009
2010config SYS_HAS_CPU_R5000
2011	bool
2012
2013config SYS_HAS_CPU_R5500
2014	bool
2015
2016config SYS_HAS_CPU_NEVADA
2017	bool
2018
2019config SYS_HAS_CPU_R10000
2020	bool
2021	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2022
2023config SYS_HAS_CPU_RM7000
2024	bool
2025
2026config SYS_HAS_CPU_SB1
2027	bool
2028
2029config SYS_HAS_CPU_CAVIUM_OCTEON
2030	bool
2031
2032config SYS_HAS_CPU_BMIPS
2033	bool
2034
2035config SYS_HAS_CPU_BMIPS32_3300
2036	bool
2037	select SYS_HAS_CPU_BMIPS
2038
2039config SYS_HAS_CPU_BMIPS4350
2040	bool
2041	select SYS_HAS_CPU_BMIPS
2042
2043config SYS_HAS_CPU_BMIPS4380
2044	bool
2045	select SYS_HAS_CPU_BMIPS
2046
2047config SYS_HAS_CPU_BMIPS5000
2048	bool
2049	select SYS_HAS_CPU_BMIPS
2050	select ARCH_HAS_SYNC_DMA_FOR_CPU
2051
2052config SYS_HAS_CPU_XLR
2053	bool
2054
2055config SYS_HAS_CPU_XLP
2056	bool
2057
2058#
2059# CPU may reorder R->R, R->W, W->R, W->W
2060# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2061#
2062config WEAK_ORDERING
2063	bool
2064
2065#
2066# CPU may reorder reads and writes beyond LL/SC
2067# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2068#
2069config WEAK_REORDERING_BEYOND_LLSC
2070	bool
2071endmenu
2072
2073#
2074# These two indicate any level of the MIPS32 and MIPS64 architecture
2075#
2076config CPU_MIPS32
2077	bool
2078	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2079		     CPU_MIPS32_R6 || CPU_P5600
2080
2081config CPU_MIPS64
2082	bool
2083	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2084		     CPU_MIPS64_R6
2085
2086#
2087# These indicate the revision of the architecture
2088#
2089config CPU_MIPSR1
2090	bool
2091	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2092
2093config CPU_MIPSR2
2094	bool
2095	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2096	select CPU_HAS_RIXI
2097	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2098	select MIPS_SPRAM
2099
2100config CPU_MIPSR5
2101	bool
2102	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2103	select CPU_HAS_RIXI
2104	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2105	select MIPS_SPRAM
2106
2107config CPU_MIPSR6
2108	bool
2109	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2110	select CPU_HAS_RIXI
2111	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2112	select HAVE_ARCH_BITREVERSE
2113	select MIPS_ASID_BITS_VARIABLE
2114	select MIPS_CRC_SUPPORT
2115	select MIPS_SPRAM
2116
2117config TARGET_ISA_REV
2118	int
2119	default 1 if CPU_MIPSR1
2120	default 2 if CPU_MIPSR2
2121	default 5 if CPU_MIPSR5
2122	default 6 if CPU_MIPSR6
2123	default 0
2124	help
2125	  Reflects the ISA revision being targeted by the kernel build. This
2126	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2127
2128config EVA
2129	bool
2130
2131config XPA
2132	bool
2133
2134config SYS_SUPPORTS_32BIT_KERNEL
2135	bool
2136config SYS_SUPPORTS_64BIT_KERNEL
2137	bool
2138config CPU_SUPPORTS_32BIT_KERNEL
2139	bool
2140config CPU_SUPPORTS_64BIT_KERNEL
2141	bool
2142config CPU_SUPPORTS_CPUFREQ
2143	bool
2144config CPU_SUPPORTS_ADDRWINCFG
2145	bool
2146config CPU_SUPPORTS_HUGEPAGES
2147	bool
2148	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2149config MIPS_PGD_C0_CONTEXT
2150	bool
2151	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2152
2153#
2154# Set to y for ptrace access to watch registers.
2155#
2156config HARDWARE_WATCHPOINTS
2157	bool
2158	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2159
2160menu "Kernel type"
2161
2162choice
2163	prompt "Kernel code model"
2164	help
2165	  You should only select this option if you have a workload that
2166	  actually benefits from 64-bit processing or if your machine has
2167	  large memory.  You will only be presented a single option in this
2168	  menu if your system does not support both 32-bit and 64-bit kernels.
2169
2170config 32BIT
2171	bool "32-bit kernel"
2172	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2173	select TRAD_SIGNALS
2174	help
2175	  Select this option if you want to build a 32-bit kernel.
2176
2177config 64BIT
2178	bool "64-bit kernel"
2179	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2180	help
2181	  Select this option if you want to build a 64-bit kernel.
2182
2183endchoice
2184
2185config KVM_GUEST
2186	bool "KVM Guest Kernel"
2187	depends on CPU_MIPS32_R2
2188	depends on BROKEN_ON_SMP
2189	help
2190	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2191	  mode.
2192
2193config KVM_GUEST_TIMER_FREQ
2194	int "Count/Compare Timer Frequency (MHz)"
2195	depends on KVM_GUEST
2196	default 100
2197	help
2198	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2199	  emulation when determining guest CPU Frequency. Instead, the guest's
2200	  timer frequency is specified directly.
2201
2202config MIPS_VA_BITS_48
2203	bool "48 bits virtual memory"
2204	depends on 64BIT
2205	help
2206	  Support a maximum at least 48 bits of application virtual
2207	  memory.  Default is 40 bits or less, depending on the CPU.
2208	  For page sizes 16k and above, this option results in a small
2209	  memory overhead for page tables.  For 4k page size, a fourth
2210	  level of page tables is added which imposes both a memory
2211	  overhead as well as slower TLB fault handling.
2212
2213	  If unsure, say N.
2214
2215choice
2216	prompt "Kernel page size"
2217	default PAGE_SIZE_4KB
2218
2219config PAGE_SIZE_4KB
2220	bool "4kB"
2221	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2222	help
2223	  This option select the standard 4kB Linux page size.  On some
2224	  R3000-family processors this is the only available page size.  Using
2225	  4kB page size will minimize memory consumption and is therefore
2226	  recommended for low memory systems.
2227
2228config PAGE_SIZE_8KB
2229	bool "8kB"
2230	depends on CPU_CAVIUM_OCTEON
2231	depends on !MIPS_VA_BITS_48
2232	help
2233	  Using 8kB page size will result in higher performance kernel at
2234	  the price of higher memory consumption.  This option is available
2235	  only on cnMIPS processors.  Note that you will need a suitable Linux
2236	  distribution to support this.
2237
2238config PAGE_SIZE_16KB
2239	bool "16kB"
2240	depends on !CPU_R3000 && !CPU_TX39XX
2241	help
2242	  Using 16kB page size will result in higher performance kernel at
2243	  the price of higher memory consumption.  This option is available on
2244	  all non-R3000 family processors.  Note that you will need a suitable
2245	  Linux distribution to support this.
2246
2247config PAGE_SIZE_32KB
2248	bool "32kB"
2249	depends on CPU_CAVIUM_OCTEON
2250	depends on !MIPS_VA_BITS_48
2251	help
2252	  Using 32kB page size will result in higher performance kernel at
2253	  the price of higher memory consumption.  This option is available
2254	  only on cnMIPS cores.  Note that you will need a suitable Linux
2255	  distribution to support this.
2256
2257config PAGE_SIZE_64KB
2258	bool "64kB"
2259	depends on !CPU_R3000 && !CPU_TX39XX
2260	help
2261	  Using 64kB page size will result in higher performance kernel at
2262	  the price of higher memory consumption.  This option is available on
2263	  all non-R3000 family processor.  Not that at the time of this
2264	  writing this option is still high experimental.
2265
2266endchoice
2267
2268config FORCE_MAX_ZONEORDER
2269	int "Maximum zone order"
2270	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2271	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2272	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2273	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2274	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2275	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2276	range 11 64
2277	default "11"
2278	help
2279	  The kernel memory allocator divides physically contiguous memory
2280	  blocks into "zones", where each zone is a power of two number of
2281	  pages.  This option selects the largest power of two that the kernel
2282	  keeps in the memory allocator.  If you need to allocate very large
2283	  blocks of physically contiguous memory, then you may need to
2284	  increase this value.
2285
2286	  This config option is actually maximum order plus one. For example,
2287	  a value of 11 means that the largest free memory block is 2^10 pages.
2288
2289	  The page size is not necessarily 4KB.  Keep this in mind
2290	  when choosing a value for this option.
2291
2292config BOARD_SCACHE
2293	bool
2294
2295config IP22_CPU_SCACHE
2296	bool
2297	select BOARD_SCACHE
2298
2299#
2300# Support for a MIPS32 / MIPS64 style S-caches
2301#
2302config MIPS_CPU_SCACHE
2303	bool
2304	select BOARD_SCACHE
2305
2306config R5000_CPU_SCACHE
2307	bool
2308	select BOARD_SCACHE
2309
2310config RM7000_CPU_SCACHE
2311	bool
2312	select BOARD_SCACHE
2313
2314config SIBYTE_DMA_PAGEOPS
2315	bool "Use DMA to clear/copy pages"
2316	depends on CPU_SB1
2317	help
2318	  Instead of using the CPU to zero and copy pages, use a Data Mover
2319	  channel.  These DMA channels are otherwise unused by the standard
2320	  SiByte Linux port.  Seems to give a small performance benefit.
2321
2322config CPU_HAS_PREFETCH
2323	bool
2324
2325config CPU_GENERIC_DUMP_TLB
2326	bool
2327	default y if !(CPU_R3000 || CPU_TX39XX)
2328
2329config MIPS_FP_SUPPORT
2330	bool "Floating Point support" if EXPERT
2331	default y
2332	help
2333	  Select y to include support for floating point in the kernel
2334	  including initialization of FPU hardware, FP context save & restore
2335	  and emulation of an FPU where necessary. Without this support any
2336	  userland program attempting to use floating point instructions will
2337	  receive a SIGILL.
2338
2339	  If you know that your userland will not attempt to use floating point
2340	  instructions then you can say n here to shrink the kernel a little.
2341
2342	  If unsure, say y.
2343
2344config CPU_R2300_FPU
2345	bool
2346	depends on MIPS_FP_SUPPORT
2347	default y if CPU_R3000 || CPU_TX39XX
2348
2349config CPU_R3K_TLB
2350	bool
2351
2352config CPU_R4K_FPU
2353	bool
2354	depends on MIPS_FP_SUPPORT
2355	default y if !CPU_R2300_FPU
2356
2357config CPU_R4K_CACHE_TLB
2358	bool
2359	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2360
2361config MIPS_MT_SMP
2362	bool "MIPS MT SMP support (1 TC on each available VPE)"
2363	default y
2364	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2365	select CPU_MIPSR2_IRQ_VI
2366	select CPU_MIPSR2_IRQ_EI
2367	select SYNC_R4K
2368	select MIPS_MT
2369	select SMP
2370	select SMP_UP
2371	select SYS_SUPPORTS_SMP
2372	select SYS_SUPPORTS_SCHED_SMT
2373	select MIPS_PERF_SHARED_TC_COUNTERS
2374	help
2375	  This is a kernel model which is known as SMVP. This is supported
2376	  on cores with the MT ASE and uses the available VPEs to implement
2377	  virtual processors which supports SMP. This is equivalent to the
2378	  Intel Hyperthreading feature. For further information go to
2379	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2380
2381config MIPS_MT
2382	bool
2383
2384config SCHED_SMT
2385	bool "SMT (multithreading) scheduler support"
2386	depends on SYS_SUPPORTS_SCHED_SMT
2387	default n
2388	help
2389	  SMT scheduler support improves the CPU scheduler's decision making
2390	  when dealing with MIPS MT enabled cores at a cost of slightly
2391	  increased overhead in some places. If unsure say N here.
2392
2393config SYS_SUPPORTS_SCHED_SMT
2394	bool
2395
2396config SYS_SUPPORTS_MULTITHREADING
2397	bool
2398
2399config MIPS_MT_FPAFF
2400	bool "Dynamic FPU affinity for FP-intensive threads"
2401	default y
2402	depends on MIPS_MT_SMP
2403
2404config MIPSR2_TO_R6_EMULATOR
2405	bool "MIPS R2-to-R6 emulator"
2406	depends on CPU_MIPSR6
2407	depends on MIPS_FP_SUPPORT
2408	default y
2409	help
2410	  Choose this option if you want to run non-R6 MIPS userland code.
2411	  Even if you say 'Y' here, the emulator will still be disabled by
2412	  default. You can enable it using the 'mipsr2emu' kernel option.
2413	  The only reason this is a build-time option is to save ~14K from the
2414	  final kernel image.
2415
2416config SYS_SUPPORTS_VPE_LOADER
2417	bool
2418	depends on SYS_SUPPORTS_MULTITHREADING
2419	help
2420	  Indicates that the platform supports the VPE loader, and provides
2421	  physical_memsize.
2422
2423config MIPS_VPE_LOADER
2424	bool "VPE loader support."
2425	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2426	select CPU_MIPSR2_IRQ_VI
2427	select CPU_MIPSR2_IRQ_EI
2428	select MIPS_MT
2429	help
2430	  Includes a loader for loading an elf relocatable object
2431	  onto another VPE and running it.
2432
2433config MIPS_VPE_LOADER_CMP
2434	bool
2435	default "y"
2436	depends on MIPS_VPE_LOADER && MIPS_CMP
2437
2438config MIPS_VPE_LOADER_MT
2439	bool
2440	default "y"
2441	depends on MIPS_VPE_LOADER && !MIPS_CMP
2442
2443config MIPS_VPE_LOADER_TOM
2444	bool "Load VPE program into memory hidden from linux"
2445	depends on MIPS_VPE_LOADER
2446	default y
2447	help
2448	  The loader can use memory that is present but has been hidden from
2449	  Linux using the kernel command line option "mem=xxMB". It's up to
2450	  you to ensure the amount you put in the option and the space your
2451	  program requires is less or equal to the amount physically present.
2452
2453config MIPS_VPE_APSP_API
2454	bool "Enable support for AP/SP API (RTLX)"
2455	depends on MIPS_VPE_LOADER
2456
2457config MIPS_VPE_APSP_API_CMP
2458	bool
2459	default "y"
2460	depends on MIPS_VPE_APSP_API && MIPS_CMP
2461
2462config MIPS_VPE_APSP_API_MT
2463	bool
2464	default "y"
2465	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2466
2467config MIPS_CMP
2468	bool "MIPS CMP framework support (DEPRECATED)"
2469	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2470	select SMP
2471	select SYNC_R4K
2472	select SYS_SUPPORTS_SMP
2473	select WEAK_ORDERING
2474	default n
2475	help
2476	  Select this if you are using a bootloader which implements the "CMP
2477	  framework" protocol (ie. YAMON) and want your kernel to make use of
2478	  its ability to start secondary CPUs.
2479
2480	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2481	  instead of this.
2482
2483config MIPS_CPS
2484	bool "MIPS Coherent Processing System support"
2485	depends on SYS_SUPPORTS_MIPS_CPS
2486	select MIPS_CM
2487	select MIPS_CPS_PM if HOTPLUG_CPU
2488	select SMP
2489	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2490	select SYS_SUPPORTS_HOTPLUG_CPU
2491	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2492	select SYS_SUPPORTS_SMP
2493	select WEAK_ORDERING
2494	help
2495	  Select this if you wish to run an SMP kernel across multiple cores
2496	  within a MIPS Coherent Processing System. When this option is
2497	  enabled the kernel will probe for other cores and boot them with
2498	  no external assistance. It is safe to enable this when hardware
2499	  support is unavailable.
2500
2501config MIPS_CPS_PM
2502	depends on MIPS_CPS
2503	bool
2504
2505config MIPS_CM
2506	bool
2507	select MIPS_CPC
2508
2509config MIPS_CPC
2510	bool
2511
2512config SB1_PASS_2_WORKAROUNDS
2513	bool
2514	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2515	default y
2516
2517config SB1_PASS_2_1_WORKAROUNDS
2518	bool
2519	depends on CPU_SB1 && CPU_SB1_PASS_2
2520	default y
2521
2522choice
2523	prompt "SmartMIPS or microMIPS ASE support"
2524
2525config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2526	bool "None"
2527	help
2528	  Select this if you want neither microMIPS nor SmartMIPS support
2529
2530config CPU_HAS_SMARTMIPS
2531	depends on SYS_SUPPORTS_SMARTMIPS
2532	bool "SmartMIPS"
2533	help
2534	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2535	  increased security at both hardware and software level for
2536	  smartcards.  Enabling this option will allow proper use of the
2537	  SmartMIPS instructions by Linux applications.  However a kernel with
2538	  this option will not work on a MIPS core without SmartMIPS core.  If
2539	  you don't know you probably don't have SmartMIPS and should say N
2540	  here.
2541
2542config CPU_MICROMIPS
2543	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2544	bool "microMIPS"
2545	help
2546	  When this option is enabled the kernel will be built using the
2547	  microMIPS ISA
2548
2549endchoice
2550
2551config CPU_HAS_MSA
2552	bool "Support for the MIPS SIMD Architecture"
2553	depends on CPU_SUPPORTS_MSA
2554	depends on MIPS_FP_SUPPORT
2555	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2556	help
2557	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2558	  and a set of SIMD instructions to operate on them. When this option
2559	  is enabled the kernel will support allocating & switching MSA
2560	  vector register contexts. If you know that your kernel will only be
2561	  running on CPUs which do not support MSA or that your userland will
2562	  not be making use of it then you may wish to say N here to reduce
2563	  the size & complexity of your kernel.
2564
2565	  If unsure, say Y.
2566
2567config CPU_HAS_WB
2568	bool
2569
2570config XKS01
2571	bool
2572
2573config CPU_HAS_DIEI
2574	depends on !CPU_DIEI_BROKEN
2575	bool
2576
2577config CPU_DIEI_BROKEN
2578	bool
2579
2580config CPU_HAS_RIXI
2581	bool
2582
2583config CPU_NO_LOAD_STORE_LR
2584	bool
2585	help
2586	  CPU lacks support for unaligned load and store instructions:
2587	  LWL, LWR, SWL, SWR (Load/store word left/right).
2588	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2589	  systems).
2590
2591#
2592# Vectored interrupt mode is an R2 feature
2593#
2594config CPU_MIPSR2_IRQ_VI
2595	bool
2596
2597#
2598# Extended interrupt mode is an R2 feature
2599#
2600config CPU_MIPSR2_IRQ_EI
2601	bool
2602
2603config CPU_HAS_SYNC
2604	bool
2605	depends on !CPU_R3000
2606	default y
2607
2608#
2609# CPU non-features
2610#
2611config CPU_DADDI_WORKAROUNDS
2612	bool
2613
2614config CPU_R4000_WORKAROUNDS
2615	bool
2616	select CPU_R4400_WORKAROUNDS
2617
2618config CPU_R4400_WORKAROUNDS
2619	bool
2620
2621config CPU_R4X00_BUGS64
2622	bool
2623	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2624
2625config MIPS_ASID_SHIFT
2626	int
2627	default 6 if CPU_R3000 || CPU_TX39XX
2628	default 0
2629
2630config MIPS_ASID_BITS
2631	int
2632	default 0 if MIPS_ASID_BITS_VARIABLE
2633	default 6 if CPU_R3000 || CPU_TX39XX
2634	default 8
2635
2636config MIPS_ASID_BITS_VARIABLE
2637	bool
2638
2639config MIPS_CRC_SUPPORT
2640	bool
2641
2642#
2643# - Highmem only makes sense for the 32-bit kernel.
2644# - The current highmem code will only work properly on physically indexed
2645#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2646#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2647#   moment we protect the user and offer the highmem option only on machines
2648#   where it's known to be safe.  This will not offer highmem on a few systems
2649#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2650#   indexed CPUs but we're playing safe.
2651# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2652#   know they might have memory configurations that could make use of highmem
2653#   support.
2654#
2655config HIGHMEM
2656	bool "High Memory Support"
2657	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2658
2659config CPU_SUPPORTS_HIGHMEM
2660	bool
2661
2662config SYS_SUPPORTS_HIGHMEM
2663	bool
2664
2665config SYS_SUPPORTS_SMARTMIPS
2666	bool
2667
2668config SYS_SUPPORTS_MICROMIPS
2669	bool
2670
2671config SYS_SUPPORTS_MIPS16
2672	bool
2673	help
2674	  This option must be set if a kernel might be executed on a MIPS16-
2675	  enabled CPU even if MIPS16 is not actually being used.  In other
2676	  words, it makes the kernel MIPS16-tolerant.
2677
2678config CPU_SUPPORTS_MSA
2679	bool
2680
2681config ARCH_FLATMEM_ENABLE
2682	def_bool y
2683	depends on !NUMA && !CPU_LOONGSON2EF
2684
2685config ARCH_SPARSEMEM_ENABLE
2686	bool
2687	select SPARSEMEM_STATIC if !SGI_IP27
2688
2689config NUMA
2690	bool "NUMA Support"
2691	depends on SYS_SUPPORTS_NUMA
2692	help
2693	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2694	  Access).  This option improves performance on systems with more
2695	  than two nodes; on two node systems it is generally better to
2696	  leave it disabled; on single node systems leave this option
2697	  disabled.
2698
2699config SYS_SUPPORTS_NUMA
2700	bool
2701
2702config HAVE_SETUP_PER_CPU_AREA
2703	def_bool y
2704	depends on NUMA
2705
2706config NEED_PER_CPU_EMBED_FIRST_CHUNK
2707	def_bool y
2708	depends on NUMA
2709
2710config RELOCATABLE
2711	bool "Relocatable kernel"
2712	depends on SYS_SUPPORTS_RELOCATABLE
2713	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2714		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2715		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2716		   CPU_P5600 || CAVIUM_OCTEON_SOC
2717	help
2718	  This builds a kernel image that retains relocation information
2719	  so it can be loaded someplace besides the default 1MB.
2720	  The relocations make the kernel binary about 15% larger,
2721	  but are discarded at runtime
2722
2723config RELOCATION_TABLE_SIZE
2724	hex "Relocation table size"
2725	depends on RELOCATABLE
2726	range 0x0 0x01000000
2727	default "0x00100000"
2728	help
2729	  A table of relocation data will be appended to the kernel binary
2730	  and parsed at boot to fix up the relocated kernel.
2731
2732	  This option allows the amount of space reserved for the table to be
2733	  adjusted, although the default of 1Mb should be ok in most cases.
2734
2735	  The build will fail and a valid size suggested if this is too small.
2736
2737	  If unsure, leave at the default value.
2738
2739config RANDOMIZE_BASE
2740	bool "Randomize the address of the kernel image"
2741	depends on RELOCATABLE
2742	help
2743	  Randomizes the physical and virtual address at which the
2744	  kernel image is loaded, as a security feature that
2745	  deters exploit attempts relying on knowledge of the location
2746	  of kernel internals.
2747
2748	  Entropy is generated using any coprocessor 0 registers available.
2749
2750	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2751
2752	  If unsure, say N.
2753
2754config RANDOMIZE_BASE_MAX_OFFSET
2755	hex "Maximum kASLR offset" if EXPERT
2756	depends on RANDOMIZE_BASE
2757	range 0x0 0x40000000 if EVA || 64BIT
2758	range 0x0 0x08000000
2759	default "0x01000000"
2760	help
2761	  When kASLR is active, this provides the maximum offset that will
2762	  be applied to the kernel image. It should be set according to the
2763	  amount of physical RAM available in the target system minus
2764	  PHYSICAL_START and must be a power of 2.
2765
2766	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2767	  EVA or 64-bit. The default is 16Mb.
2768
2769config NODES_SHIFT
2770	int
2771	default "6"
2772	depends on NEED_MULTIPLE_NODES
2773
2774config HW_PERF_EVENTS
2775	bool "Enable hardware performance counter support for perf events"
2776	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2777	default y
2778	help
2779	  Enable hardware performance counter support for perf events. If
2780	  disabled, perf events will use software events only.
2781
2782config DMI
2783	bool "Enable DMI scanning"
2784	depends on MACH_LOONGSON64
2785	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2786	default y
2787	help
2788	  Enabled scanning of DMI to identify machine quirks. Say Y
2789	  here unless you have verified that your setup is not
2790	  affected by entries in the DMI blacklist. Required by PNP
2791	  BIOS code.
2792
2793config SMP
2794	bool "Multi-Processing support"
2795	depends on SYS_SUPPORTS_SMP
2796	help
2797	  This enables support for systems with more than one CPU. If you have
2798	  a system with only one CPU, say N. If you have a system with more
2799	  than one CPU, say Y.
2800
2801	  If you say N here, the kernel will run on uni- and multiprocessor
2802	  machines, but will use only one CPU of a multiprocessor machine. If
2803	  you say Y here, the kernel will run on many, but not all,
2804	  uniprocessor machines. On a uniprocessor machine, the kernel
2805	  will run faster if you say N here.
2806
2807	  People using multiprocessor machines who say Y here should also say
2808	  Y to "Enhanced Real Time Clock Support", below.
2809
2810	  See also the SMP-HOWTO available at
2811	  <https://www.tldp.org/docs.html#howto>.
2812
2813	  If you don't know what to do here, say N.
2814
2815config HOTPLUG_CPU
2816	bool "Support for hot-pluggable CPUs"
2817	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2818	help
2819	  Say Y here to allow turning CPUs off and on. CPUs can be
2820	  controlled through /sys/devices/system/cpu.
2821	  (Note: power management support will enable this option
2822	    automatically on SMP systems. )
2823	  Say N if you want to disable CPU hotplug.
2824
2825config SMP_UP
2826	bool
2827
2828config SYS_SUPPORTS_MIPS_CMP
2829	bool
2830
2831config SYS_SUPPORTS_MIPS_CPS
2832	bool
2833
2834config SYS_SUPPORTS_SMP
2835	bool
2836
2837config NR_CPUS_DEFAULT_4
2838	bool
2839
2840config NR_CPUS_DEFAULT_8
2841	bool
2842
2843config NR_CPUS_DEFAULT_16
2844	bool
2845
2846config NR_CPUS_DEFAULT_32
2847	bool
2848
2849config NR_CPUS_DEFAULT_64
2850	bool
2851
2852config NR_CPUS
2853	int "Maximum number of CPUs (2-256)"
2854	range 2 256
2855	depends on SMP
2856	default "4" if NR_CPUS_DEFAULT_4
2857	default "8" if NR_CPUS_DEFAULT_8
2858	default "16" if NR_CPUS_DEFAULT_16
2859	default "32" if NR_CPUS_DEFAULT_32
2860	default "64" if NR_CPUS_DEFAULT_64
2861	help
2862	  This allows you to specify the maximum number of CPUs which this
2863	  kernel will support.  The maximum supported value is 32 for 32-bit
2864	  kernel and 64 for 64-bit kernels; the minimum value which makes
2865	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2866	  and 2 for all others.
2867
2868	  This is purely to save memory - each supported CPU adds
2869	  approximately eight kilobytes to the kernel image.  For best
2870	  performance should round up your number of processors to the next
2871	  power of two.
2872
2873config MIPS_PERF_SHARED_TC_COUNTERS
2874	bool
2875
2876config MIPS_NR_CPU_NR_MAP_1024
2877	bool
2878
2879config MIPS_NR_CPU_NR_MAP
2880	int
2881	depends on SMP
2882	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2883	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2884
2885#
2886# Timer Interrupt Frequency Configuration
2887#
2888
2889choice
2890	prompt "Timer frequency"
2891	default HZ_250
2892	help
2893	  Allows the configuration of the timer frequency.
2894
2895	config HZ_24
2896		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2897
2898	config HZ_48
2899		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2900
2901	config HZ_100
2902		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2903
2904	config HZ_128
2905		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2906
2907	config HZ_250
2908		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2909
2910	config HZ_256
2911		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2912
2913	config HZ_1000
2914		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2915
2916	config HZ_1024
2917		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2918
2919endchoice
2920
2921config SYS_SUPPORTS_24HZ
2922	bool
2923
2924config SYS_SUPPORTS_48HZ
2925	bool
2926
2927config SYS_SUPPORTS_100HZ
2928	bool
2929
2930config SYS_SUPPORTS_128HZ
2931	bool
2932
2933config SYS_SUPPORTS_250HZ
2934	bool
2935
2936config SYS_SUPPORTS_256HZ
2937	bool
2938
2939config SYS_SUPPORTS_1000HZ
2940	bool
2941
2942config SYS_SUPPORTS_1024HZ
2943	bool
2944
2945config SYS_SUPPORTS_ARBIT_HZ
2946	bool
2947	default y if !SYS_SUPPORTS_24HZ && \
2948		     !SYS_SUPPORTS_48HZ && \
2949		     !SYS_SUPPORTS_100HZ && \
2950		     !SYS_SUPPORTS_128HZ && \
2951		     !SYS_SUPPORTS_250HZ && \
2952		     !SYS_SUPPORTS_256HZ && \
2953		     !SYS_SUPPORTS_1000HZ && \
2954		     !SYS_SUPPORTS_1024HZ
2955
2956config HZ
2957	int
2958	default 24 if HZ_24
2959	default 48 if HZ_48
2960	default 100 if HZ_100
2961	default 128 if HZ_128
2962	default 250 if HZ_250
2963	default 256 if HZ_256
2964	default 1000 if HZ_1000
2965	default 1024 if HZ_1024
2966
2967config SCHED_HRTICK
2968	def_bool HIGH_RES_TIMERS
2969
2970config KEXEC
2971	bool "Kexec system call"
2972	select KEXEC_CORE
2973	help
2974	  kexec is a system call that implements the ability to shutdown your
2975	  current kernel, and to start another kernel.  It is like a reboot
2976	  but it is independent of the system firmware.   And like a reboot
2977	  you can start any kernel with it, not just Linux.
2978
2979	  The name comes from the similarity to the exec system call.
2980
2981	  It is an ongoing process to be certain the hardware in a machine
2982	  is properly shutdown, so do not be surprised if this code does not
2983	  initially work for you.  As of this writing the exact hardware
2984	  interface is strongly in flux, so no good recommendation can be
2985	  made.
2986
2987config CRASH_DUMP
2988	bool "Kernel crash dumps"
2989	help
2990	  Generate crash dump after being started by kexec.
2991	  This should be normally only set in special crash dump kernels
2992	  which are loaded in the main kernel with kexec-tools into
2993	  a specially reserved region and then later executed after
2994	  a crash by kdump/kexec. The crash dump kernel must be compiled
2995	  to a memory address not used by the main kernel or firmware using
2996	  PHYSICAL_START.
2997
2998config PHYSICAL_START
2999	hex "Physical address where the kernel is loaded"
3000	default "0xffffffff84000000"
3001	depends on CRASH_DUMP
3002	help
3003	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3004	  If you plan to use kernel for capturing the crash dump change
3005	  this value to start of the reserved region (the "X" value as
3006	  specified in the "crashkernel=YM@XM" command line boot parameter
3007	  passed to the panic-ed kernel).
3008
3009config SECCOMP
3010	bool "Enable seccomp to safely compute untrusted bytecode"
3011	depends on PROC_FS
3012	default y
3013	help
3014	  This kernel feature is useful for number crunching applications
3015	  that may need to compute untrusted bytecode during their
3016	  execution. By using pipes or other transports made available to
3017	  the process as file descriptors supporting the read/write
3018	  syscalls, it's possible to isolate those applications in
3019	  their own address space using seccomp. Once seccomp is
3020	  enabled via /proc/<pid>/seccomp, it cannot be disabled
3021	  and the task is only allowed to execute a few safe syscalls
3022	  defined by each seccomp mode.
3023
3024	  If unsure, say Y. Only embedded should say N here.
3025
3026config MIPS_O32_FP64_SUPPORT
3027	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3028	depends on 32BIT || MIPS32_O32
3029	help
3030	  When this is enabled, the kernel will support use of 64-bit floating
3031	  point registers with binaries using the O32 ABI along with the
3032	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3033	  32-bit MIPS systems this support is at the cost of increasing the
3034	  size and complexity of the compiled FPU emulator. Thus if you are
3035	  running a MIPS32 system and know that none of your userland binaries
3036	  will require 64-bit floating point, you may wish to reduce the size
3037	  of your kernel & potentially improve FP emulation performance by
3038	  saying N here.
3039
3040	  Although binutils currently supports use of this flag the details
3041	  concerning its effect upon the O32 ABI in userland are still being
3042	  worked on. In order to avoid userland becoming dependant upon current
3043	  behaviour before the details have been finalised, this option should
3044	  be considered experimental and only enabled by those working upon
3045	  said details.
3046
3047	  If unsure, say N.
3048
3049config USE_OF
3050	bool
3051	select OF
3052	select OF_EARLY_FLATTREE
3053	select IRQ_DOMAIN
3054
3055config UHI_BOOT
3056	bool
3057
3058config BUILTIN_DTB
3059	bool
3060
3061choice
3062	prompt "Kernel appended dtb support" if USE_OF
3063	default MIPS_NO_APPENDED_DTB
3064
3065	config MIPS_NO_APPENDED_DTB
3066		bool "None"
3067		help
3068		  Do not enable appended dtb support.
3069
3070	config MIPS_ELF_APPENDED_DTB
3071		bool "vmlinux"
3072		help
3073		  With this option, the boot code will look for a device tree binary
3074		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3075		  it is empty and the DTB can be appended using binutils command
3076		  objcopy:
3077
3078		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3079
3080		  This is meant as a backward compatiblity convenience for those
3081		  systems with a bootloader that can't be upgraded to accommodate
3082		  the documented boot protocol using a device tree.
3083
3084	config MIPS_RAW_APPENDED_DTB
3085		bool "vmlinux.bin or vmlinuz.bin"
3086		help
3087		  With this option, the boot code will look for a device tree binary
3088		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3089		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3090
3091		  This is meant as a backward compatibility convenience for those
3092		  systems with a bootloader that can't be upgraded to accommodate
3093		  the documented boot protocol using a device tree.
3094
3095		  Beware that there is very little in terms of protection against
3096		  this option being confused by leftover garbage in memory that might
3097		  look like a DTB header after a reboot if no actual DTB is appended
3098		  to vmlinux.bin.  Do not leave this option active in a production kernel
3099		  if you don't intend to always append a DTB.
3100endchoice
3101
3102choice
3103	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3104	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3105					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3106					 !CAVIUM_OCTEON_SOC
3107	default MIPS_CMDLINE_FROM_BOOTLOADER
3108
3109	config MIPS_CMDLINE_FROM_DTB
3110		depends on USE_OF
3111		bool "Dtb kernel arguments if available"
3112
3113	config MIPS_CMDLINE_DTB_EXTEND
3114		depends on USE_OF
3115		bool "Extend dtb kernel arguments with bootloader arguments"
3116
3117	config MIPS_CMDLINE_FROM_BOOTLOADER
3118		bool "Bootloader kernel arguments if available"
3119
3120	config MIPS_CMDLINE_BUILTIN_EXTEND
3121		depends on CMDLINE_BOOL
3122		bool "Extend builtin kernel arguments with bootloader arguments"
3123endchoice
3124
3125endmenu
3126
3127config LOCKDEP_SUPPORT
3128	bool
3129	default y
3130
3131config STACKTRACE_SUPPORT
3132	bool
3133	default y
3134
3135config PGTABLE_LEVELS
3136	int
3137	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3138	default 3 if 64BIT && !PAGE_SIZE_64KB
3139	default 2
3140
3141config MIPS_AUTO_PFN_OFFSET
3142	bool
3143
3144menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3145
3146config PCI_DRIVERS_GENERIC
3147	select PCI_DOMAINS_GENERIC if PCI
3148	bool
3149
3150config PCI_DRIVERS_LEGACY
3151	def_bool !PCI_DRIVERS_GENERIC
3152	select NO_GENERIC_PCI_IOPORT_MAP
3153	select PCI_DOMAINS if PCI
3154
3155#
3156# ISA support is now enabled via select.  Too many systems still have the one
3157# or other ISA chip on the board that users don't know about so don't expect
3158# users to choose the right thing ...
3159#
3160config ISA
3161	bool
3162
3163config TC
3164	bool "TURBOchannel support"
3165	depends on MACH_DECSTATION
3166	help
3167	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3168	  processors.  TURBOchannel programming specifications are available
3169	  at:
3170	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3171	  and:
3172	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3173	  Linux driver support status is documented at:
3174	  <http://www.linux-mips.org/wiki/DECstation>
3175
3176config MMU
3177	bool
3178	default y
3179
3180config ARCH_MMAP_RND_BITS_MIN
3181	default 12 if 64BIT
3182	default 8
3183
3184config ARCH_MMAP_RND_BITS_MAX
3185	default 18 if 64BIT
3186	default 15
3187
3188config ARCH_MMAP_RND_COMPAT_BITS_MIN
3189	default 8
3190
3191config ARCH_MMAP_RND_COMPAT_BITS_MAX
3192	default 15
3193
3194config I8253
3195	bool
3196	select CLKSRC_I8253
3197	select CLKEVT_I8253
3198	select MIPS_EXTERNAL_TIMER
3199
3200config ZONE_DMA
3201	bool
3202
3203config ZONE_DMA32
3204	bool
3205
3206endmenu
3207
3208config TRAD_SIGNALS
3209	bool
3210
3211config MIPS32_COMPAT
3212	bool
3213
3214config COMPAT
3215	bool
3216
3217config SYSVIPC_COMPAT
3218	bool
3219
3220config MIPS32_O32
3221	bool "Kernel support for o32 binaries"
3222	depends on 64BIT
3223	select ARCH_WANT_OLD_COMPAT_IPC
3224	select COMPAT
3225	select MIPS32_COMPAT
3226	select SYSVIPC_COMPAT if SYSVIPC
3227	help
3228	  Select this option if you want to run o32 binaries.  These are pure
3229	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3230	  existing binaries are in this format.
3231
3232	  If unsure, say Y.
3233
3234config MIPS32_N32
3235	bool "Kernel support for n32 binaries"
3236	depends on 64BIT
3237	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3238	select COMPAT
3239	select MIPS32_COMPAT
3240	select SYSVIPC_COMPAT if SYSVIPC
3241	help
3242	  Select this option if you want to run n32 binaries.  These are
3243	  64-bit binaries using 32-bit quantities for addressing and certain
3244	  data that would normally be 64-bit.  They are used in special
3245	  cases.
3246
3247	  If unsure, say N.
3248
3249config BINFMT_ELF32
3250	bool
3251	default y if MIPS32_O32 || MIPS32_N32
3252	select ELFCORE
3253
3254menu "Power management options"
3255
3256config ARCH_HIBERNATION_POSSIBLE
3257	def_bool y
3258	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3259
3260config ARCH_SUSPEND_POSSIBLE
3261	def_bool y
3262	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3263
3264source "kernel/power/Kconfig"
3265
3266endmenu
3267
3268config MIPS_EXTERNAL_TIMER
3269	bool
3270
3271menu "CPU Power Management"
3272
3273if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3274source "drivers/cpufreq/Kconfig"
3275endif
3276
3277source "drivers/cpuidle/Kconfig"
3278
3279endmenu
3280
3281source "drivers/firmware/Kconfig"
3282
3283source "arch/mips/kvm/Kconfig"
3284
3285source "arch/mips/vdso/Kconfig"
3286