xref: /openbmc/linux/arch/mips/Kconfig (revision 15d5761a)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_32BIT_OFF_T if !64BIT
6	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7	select ARCH_HAS_FORTIFY_SOURCE
8	select ARCH_HAS_KCOV
9	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
10	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
11	select ARCH_HAS_UBSAN_SANITIZE_ALL
12	select ARCH_SUPPORTS_UPROBES
13	select ARCH_USE_BUILTIN_BSWAP
14	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
15	select ARCH_USE_QUEUED_RWLOCKS
16	select ARCH_USE_QUEUED_SPINLOCKS
17	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
18	select ARCH_WANT_IPC_PARSE_VERSION
19	select BUILDTIME_TABLE_SORT
20	select CLONE_BACKWARDS
21	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
22	select CPU_PM if CPU_IDLE
23	select GENERIC_ATOMIC64 if !64BIT
24	select GENERIC_CLOCKEVENTS
25	select GENERIC_CMOS_UPDATE
26	select GENERIC_CPU_AUTOPROBE
27	select GENERIC_GETTIMEOFDAY
28	select GENERIC_IOMAP
29	select GENERIC_IRQ_PROBE
30	select GENERIC_IRQ_SHOW
31	select GENERIC_ISA_DMA if EISA
32	select GENERIC_LIB_ASHLDI3
33	select GENERIC_LIB_ASHRDI3
34	select GENERIC_LIB_CMPDI2
35	select GENERIC_LIB_LSHRDI3
36	select GENERIC_LIB_UCMPDI2
37	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
38	select GENERIC_SMP_IDLE_THREAD
39	select GENERIC_TIME_VSYSCALL
40	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
41	select HANDLE_DOMAIN_IRQ
42	select HAVE_ARCH_COMPILER_H
43	select HAVE_ARCH_JUMP_LABEL
44	select HAVE_ARCH_KGDB
45	select HAVE_ARCH_MMAP_RND_BITS if MMU
46	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
47	select HAVE_ARCH_SECCOMP_FILTER
48	select HAVE_ARCH_TRACEHOOK
49	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
50	select HAVE_ASM_MODVERSIONS
51	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
52	select HAVE_CONTEXT_TRACKING
53	select HAVE_TIF_NOHZ
54	select HAVE_COPY_THREAD_TLS
55	select HAVE_C_RECORDMCOUNT
56	select HAVE_DEBUG_KMEMLEAK
57	select HAVE_DEBUG_STACKOVERFLOW
58	select HAVE_DMA_CONTIGUOUS
59	select HAVE_DYNAMIC_FTRACE
60	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
61	select HAVE_EXIT_THREAD
62	select HAVE_FAST_GUP
63	select HAVE_FTRACE_MCOUNT_RECORD
64	select HAVE_FUNCTION_GRAPH_TRACER
65	select HAVE_FUNCTION_TRACER
66	select HAVE_GCC_PLUGINS
67	select HAVE_GENERIC_VDSO
68	select HAVE_IDE
69	select HAVE_IOREMAP_PROT
70	select HAVE_IRQ_EXIT_ON_IRQ_STACK
71	select HAVE_IRQ_TIME_ACCOUNTING
72	select HAVE_KPROBES
73	select HAVE_KRETPROBES
74	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
75	select HAVE_MOD_ARCH_SPECIFIC
76	select HAVE_NMI
77	select HAVE_OPROFILE
78	select HAVE_PERF_EVENTS
79	select HAVE_REGS_AND_STACK_ACCESS_API
80	select HAVE_RSEQ
81	select HAVE_SPARSE_SYSCALL_NR
82	select HAVE_STACKPROTECTOR
83	select HAVE_SYSCALL_TRACEPOINTS
84	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
85	select IRQ_FORCED_THREADING
86	select ISA if EISA
87	select MODULES_USE_ELF_REL if MODULES
88	select MODULES_USE_ELF_RELA if MODULES && 64BIT
89	select PERF_USE_VMALLOC
90	select RTC_LIB
91	select SYSCTL_EXCEPTION_TRACE
92	select VIRT_TO_BUS
93
94config MIPS_FIXUP_BIGPHYS_ADDR
95	bool
96
97menu "Machine selection"
98
99choice
100	prompt "System type"
101	default MIPS_GENERIC
102
103config MIPS_GENERIC
104	bool "Generic board-agnostic MIPS kernel"
105	select BOOT_RAW
106	select BUILTIN_DTB
107	select CEVT_R4K
108	select CLKSRC_MIPS_GIC
109	select COMMON_CLK
110	select CPU_MIPSR2_IRQ_EI
111	select CPU_MIPSR2_IRQ_VI
112	select CSRC_R4K
113	select DMA_PERDEV_COHERENT
114	select HAVE_PCI
115	select IRQ_MIPS_CPU
116	select MIPS_AUTO_PFN_OFFSET
117	select MIPS_CPU_SCACHE
118	select MIPS_GIC
119	select MIPS_L1_CACHE_SHIFT_7
120	select NO_EXCEPT_FILL
121	select PCI_DRIVERS_GENERIC
122	select SMP_UP if SMP
123	select SWAP_IO_SPACE
124	select SYS_HAS_CPU_MIPS32_R1
125	select SYS_HAS_CPU_MIPS32_R2
126	select SYS_HAS_CPU_MIPS32_R6
127	select SYS_HAS_CPU_MIPS64_R1
128	select SYS_HAS_CPU_MIPS64_R2
129	select SYS_HAS_CPU_MIPS64_R6
130	select SYS_SUPPORTS_32BIT_KERNEL
131	select SYS_SUPPORTS_64BIT_KERNEL
132	select SYS_SUPPORTS_BIG_ENDIAN
133	select SYS_SUPPORTS_HIGHMEM
134	select SYS_SUPPORTS_LITTLE_ENDIAN
135	select SYS_SUPPORTS_MICROMIPS
136	select SYS_SUPPORTS_MIPS16
137	select SYS_SUPPORTS_MIPS_CPS
138	select SYS_SUPPORTS_MULTITHREADING
139	select SYS_SUPPORTS_RELOCATABLE
140	select SYS_SUPPORTS_SMARTMIPS
141	select UHI_BOOT
142	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
143	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
144	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
145	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
146	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
147	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
148	select USE_OF
149	help
150	  Select this to build a kernel which aims to support multiple boards,
151	  generally using a flattened device tree passed from the bootloader
152	  using the boot protocol defined in the UHI (Unified Hosting
153	  Interface) specification.
154
155config MIPS_ALCHEMY
156	bool "Alchemy processor based machines"
157	select PHYS_ADDR_T_64BIT
158	select CEVT_R4K
159	select CSRC_R4K
160	select IRQ_MIPS_CPU
161	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
162	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
163	select SYS_HAS_CPU_MIPS32_R1
164	select SYS_SUPPORTS_32BIT_KERNEL
165	select SYS_SUPPORTS_APM_EMULATION
166	select GPIOLIB
167	select SYS_SUPPORTS_ZBOOT
168	select COMMON_CLK
169
170config AR7
171	bool "Texas Instruments AR7"
172	select BOOT_ELF32
173	select DMA_NONCOHERENT
174	select CEVT_R4K
175	select CSRC_R4K
176	select IRQ_MIPS_CPU
177	select NO_EXCEPT_FILL
178	select SWAP_IO_SPACE
179	select SYS_HAS_CPU_MIPS32_R1
180	select SYS_HAS_EARLY_PRINTK
181	select SYS_SUPPORTS_32BIT_KERNEL
182	select SYS_SUPPORTS_LITTLE_ENDIAN
183	select SYS_SUPPORTS_MIPS16
184	select SYS_SUPPORTS_ZBOOT_UART16550
185	select GPIOLIB
186	select VLYNQ
187	select HAVE_LEGACY_CLK
188	help
189	  Support for the Texas Instruments AR7 System-on-a-Chip
190	  family: TNETD7100, 7200 and 7300.
191
192config ATH25
193	bool "Atheros AR231x/AR531x SoC support"
194	select CEVT_R4K
195	select CSRC_R4K
196	select DMA_NONCOHERENT
197	select IRQ_MIPS_CPU
198	select IRQ_DOMAIN
199	select SYS_HAS_CPU_MIPS32_R1
200	select SYS_SUPPORTS_BIG_ENDIAN
201	select SYS_SUPPORTS_32BIT_KERNEL
202	select SYS_HAS_EARLY_PRINTK
203	help
204	  Support for Atheros AR231x and Atheros AR531x based boards
205
206config ATH79
207	bool "Atheros AR71XX/AR724X/AR913X based boards"
208	select ARCH_HAS_RESET_CONTROLLER
209	select BOOT_RAW
210	select CEVT_R4K
211	select CSRC_R4K
212	select DMA_NONCOHERENT
213	select GPIOLIB
214	select PINCTRL
215	select COMMON_CLK
216	select IRQ_MIPS_CPU
217	select SYS_HAS_CPU_MIPS32_R2
218	select SYS_HAS_EARLY_PRINTK
219	select SYS_SUPPORTS_32BIT_KERNEL
220	select SYS_SUPPORTS_BIG_ENDIAN
221	select SYS_SUPPORTS_MIPS16
222	select SYS_SUPPORTS_ZBOOT_UART_PROM
223	select USE_OF
224	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
225	help
226	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
227
228config BMIPS_GENERIC
229	bool "Broadcom Generic BMIPS kernel"
230	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
231	select ARCH_HAS_PHYS_TO_DMA
232	select BOOT_RAW
233	select NO_EXCEPT_FILL
234	select USE_OF
235	select CEVT_R4K
236	select CSRC_R4K
237	select SYNC_R4K
238	select COMMON_CLK
239	select BCM6345_L1_IRQ
240	select BCM7038_L1_IRQ
241	select BCM7120_L2_IRQ
242	select BRCMSTB_L2_IRQ
243	select IRQ_MIPS_CPU
244	select DMA_NONCOHERENT
245	select SYS_SUPPORTS_32BIT_KERNEL
246	select SYS_SUPPORTS_LITTLE_ENDIAN
247	select SYS_SUPPORTS_BIG_ENDIAN
248	select SYS_SUPPORTS_HIGHMEM
249	select SYS_HAS_CPU_BMIPS32_3300
250	select SYS_HAS_CPU_BMIPS4350
251	select SYS_HAS_CPU_BMIPS4380
252	select SYS_HAS_CPU_BMIPS5000
253	select SWAP_IO_SPACE
254	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
255	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
256	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
257	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
258	select HARDIRQS_SW_RESEND
259	help
260	  Build a generic DT-based kernel image that boots on select
261	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
262	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
263	  must be set appropriately for your board.
264
265config BCM47XX
266	bool "Broadcom BCM47XX based boards"
267	select BOOT_RAW
268	select CEVT_R4K
269	select CSRC_R4K
270	select DMA_NONCOHERENT
271	select HAVE_PCI
272	select IRQ_MIPS_CPU
273	select SYS_HAS_CPU_MIPS32_R1
274	select NO_EXCEPT_FILL
275	select SYS_SUPPORTS_32BIT_KERNEL
276	select SYS_SUPPORTS_LITTLE_ENDIAN
277	select SYS_SUPPORTS_MIPS16
278	select SYS_SUPPORTS_ZBOOT
279	select SYS_HAS_EARLY_PRINTK
280	select USE_GENERIC_EARLY_PRINTK_8250
281	select GPIOLIB
282	select LEDS_GPIO_REGISTER
283	select BCM47XX_NVRAM
284	select BCM47XX_SPROM
285	select BCM47XX_SSB if !BCM47XX_BCMA
286	help
287	  Support for BCM47XX based boards
288
289config BCM63XX
290	bool "Broadcom BCM63XX based boards"
291	select BOOT_RAW
292	select CEVT_R4K
293	select CSRC_R4K
294	select SYNC_R4K
295	select DMA_NONCOHERENT
296	select IRQ_MIPS_CPU
297	select SYS_SUPPORTS_32BIT_KERNEL
298	select SYS_SUPPORTS_BIG_ENDIAN
299	select SYS_HAS_EARLY_PRINTK
300	select SWAP_IO_SPACE
301	select GPIOLIB
302	select MIPS_L1_CACHE_SHIFT_4
303	select CLKDEV_LOOKUP
304	select HAVE_LEGACY_CLK
305	help
306	  Support for BCM63XX based boards
307
308config MIPS_COBALT
309	bool "Cobalt Server"
310	select CEVT_R4K
311	select CSRC_R4K
312	select CEVT_GT641XX
313	select DMA_NONCOHERENT
314	select FORCE_PCI
315	select I8253
316	select I8259
317	select IRQ_MIPS_CPU
318	select IRQ_GT641XX
319	select PCI_GT64XXX_PCI0
320	select SYS_HAS_CPU_NEVADA
321	select SYS_HAS_EARLY_PRINTK
322	select SYS_SUPPORTS_32BIT_KERNEL
323	select SYS_SUPPORTS_64BIT_KERNEL
324	select SYS_SUPPORTS_LITTLE_ENDIAN
325	select USE_GENERIC_EARLY_PRINTK_8250
326
327config MACH_DECSTATION
328	bool "DECstations"
329	select BOOT_ELF32
330	select CEVT_DS1287
331	select CEVT_R4K if CPU_R4X00
332	select CSRC_IOASIC
333	select CSRC_R4K if CPU_R4X00
334	select CPU_DADDI_WORKAROUNDS if 64BIT
335	select CPU_R4000_WORKAROUNDS if 64BIT
336	select CPU_R4400_WORKAROUNDS if 64BIT
337	select DMA_NONCOHERENT
338	select NO_IOPORT_MAP
339	select IRQ_MIPS_CPU
340	select SYS_HAS_CPU_R3000
341	select SYS_HAS_CPU_R4X00
342	select SYS_SUPPORTS_32BIT_KERNEL
343	select SYS_SUPPORTS_64BIT_KERNEL
344	select SYS_SUPPORTS_LITTLE_ENDIAN
345	select SYS_SUPPORTS_128HZ
346	select SYS_SUPPORTS_256HZ
347	select SYS_SUPPORTS_1024HZ
348	select MIPS_L1_CACHE_SHIFT_4
349	help
350	  This enables support for DEC's MIPS based workstations.  For details
351	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
352	  DECstation porting pages on <http://decstation.unix-ag.org/>.
353
354	  If you have one of the following DECstation Models you definitely
355	  want to choose R4xx0 for the CPU Type:
356
357		DECstation 5000/50
358		DECstation 5000/150
359		DECstation 5000/260
360		DECsystem 5900/260
361
362	  otherwise choose R3000.
363
364config MACH_JAZZ
365	bool "Jazz family of machines"
366	select ARC_MEMORY
367	select ARC_PROMLIB
368	select ARCH_MIGHT_HAVE_PC_PARPORT
369	select ARCH_MIGHT_HAVE_PC_SERIO
370	select FW_ARC
371	select FW_ARC32
372	select ARCH_MAY_HAVE_PC_FDC
373	select CEVT_R4K
374	select CSRC_R4K
375	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
376	select GENERIC_ISA_DMA
377	select HAVE_PCSPKR_PLATFORM
378	select IRQ_MIPS_CPU
379	select I8253
380	select I8259
381	select ISA
382	select SYS_HAS_CPU_R4X00
383	select SYS_SUPPORTS_32BIT_KERNEL
384	select SYS_SUPPORTS_64BIT_KERNEL
385	select SYS_SUPPORTS_100HZ
386	help
387	  This a family of machines based on the MIPS R4030 chipset which was
388	  used by several vendors to build RISC/os and Windows NT workstations.
389	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
390	  Olivetti M700-10 workstations.
391
392config MACH_INGENIC
393	bool "Ingenic SoC based machines"
394	select SYS_SUPPORTS_32BIT_KERNEL
395	select SYS_SUPPORTS_LITTLE_ENDIAN
396	select SYS_SUPPORTS_ZBOOT_UART16550
397	select CPU_SUPPORTS_HUGEPAGES
398	select DMA_NONCOHERENT
399	select IRQ_MIPS_CPU
400	select PINCTRL
401	select GPIOLIB
402	select COMMON_CLK
403	select GENERIC_IRQ_CHIP
404	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
405	select USE_OF
406
407config LANTIQ
408	bool "Lantiq based platforms"
409	select DMA_NONCOHERENT
410	select IRQ_MIPS_CPU
411	select CEVT_R4K
412	select CSRC_R4K
413	select SYS_HAS_CPU_MIPS32_R1
414	select SYS_HAS_CPU_MIPS32_R2
415	select SYS_SUPPORTS_BIG_ENDIAN
416	select SYS_SUPPORTS_32BIT_KERNEL
417	select SYS_SUPPORTS_MIPS16
418	select SYS_SUPPORTS_MULTITHREADING
419	select SYS_SUPPORTS_VPE_LOADER
420	select SYS_HAS_EARLY_PRINTK
421	select GPIOLIB
422	select SWAP_IO_SPACE
423	select BOOT_RAW
424	select CLKDEV_LOOKUP
425	select HAVE_LEGACY_CLK
426	select USE_OF
427	select PINCTRL
428	select PINCTRL_LANTIQ
429	select ARCH_HAS_RESET_CONTROLLER
430	select RESET_CONTROLLER
431
432config MACH_LOONGSON32
433	bool "Loongson 32-bit family of machines"
434	select SYS_SUPPORTS_ZBOOT
435	help
436	  This enables support for the Loongson-1 family of machines.
437
438	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
439	  the Institute of Computing Technology (ICT), Chinese Academy of
440	  Sciences (CAS).
441
442config MACH_LOONGSON2EF
443	bool "Loongson-2E/F family of machines"
444	select SYS_SUPPORTS_ZBOOT
445	help
446	  This enables the support of early Loongson-2E/F family of machines.
447
448config MACH_LOONGSON64
449	bool "Loongson 64-bit family of machines"
450	select ARCH_SPARSEMEM_ENABLE
451	select ARCH_MIGHT_HAVE_PC_PARPORT
452	select ARCH_MIGHT_HAVE_PC_SERIO
453	select GENERIC_ISA_DMA_SUPPORT_BROKEN
454	select BOOT_ELF32
455	select BOARD_SCACHE
456	select CSRC_R4K
457	select CEVT_R4K
458	select CPU_HAS_WB
459	select FORCE_PCI
460	select ISA
461	select I8259
462	select IRQ_MIPS_CPU
463	select NO_EXCEPT_FILL
464	select NR_CPUS_DEFAULT_64
465	select USE_GENERIC_EARLY_PRINTK_8250
466	select PCI_DRIVERS_GENERIC
467	select SYS_HAS_CPU_LOONGSON64
468	select SYS_HAS_EARLY_PRINTK
469	select SYS_SUPPORTS_SMP
470	select SYS_SUPPORTS_HOTPLUG_CPU
471	select SYS_SUPPORTS_NUMA
472	select SYS_SUPPORTS_64BIT_KERNEL
473	select SYS_SUPPORTS_HIGHMEM
474	select SYS_SUPPORTS_LITTLE_ENDIAN
475	select SYS_SUPPORTS_ZBOOT
476	select ZONE_DMA32
477	select NUMA
478	select COMMON_CLK
479	select USE_OF
480	select BUILTIN_DTB
481	help
482	  This enables the support of Loongson-2/3 family of machines.
483
484	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
485	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
486	  and Loongson-2F which will be removed), developed by the Institute
487	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
488
489config MACH_PISTACHIO
490	bool "IMG Pistachio SoC based boards"
491	select BOOT_ELF32
492	select BOOT_RAW
493	select CEVT_R4K
494	select CLKSRC_MIPS_GIC
495	select COMMON_CLK
496	select CSRC_R4K
497	select DMA_NONCOHERENT
498	select GPIOLIB
499	select IRQ_MIPS_CPU
500	select MFD_SYSCON
501	select MIPS_CPU_SCACHE
502	select MIPS_GIC
503	select PINCTRL
504	select REGULATOR
505	select SYS_HAS_CPU_MIPS32_R2
506	select SYS_SUPPORTS_32BIT_KERNEL
507	select SYS_SUPPORTS_LITTLE_ENDIAN
508	select SYS_SUPPORTS_MIPS_CPS
509	select SYS_SUPPORTS_MULTITHREADING
510	select SYS_SUPPORTS_RELOCATABLE
511	select SYS_SUPPORTS_ZBOOT
512	select SYS_HAS_EARLY_PRINTK
513	select USE_GENERIC_EARLY_PRINTK_8250
514	select USE_OF
515	help
516	  This enables support for the IMG Pistachio SoC platform.
517
518config MIPS_MALTA
519	bool "MIPS Malta board"
520	select ARCH_MAY_HAVE_PC_FDC
521	select ARCH_MIGHT_HAVE_PC_PARPORT
522	select ARCH_MIGHT_HAVE_PC_SERIO
523	select BOOT_ELF32
524	select BOOT_RAW
525	select BUILTIN_DTB
526	select CEVT_R4K
527	select CLKSRC_MIPS_GIC
528	select COMMON_CLK
529	select CSRC_R4K
530	select DMA_MAYBE_COHERENT
531	select GENERIC_ISA_DMA
532	select HAVE_PCSPKR_PLATFORM
533	select HAVE_PCI
534	select I8253
535	select I8259
536	select IRQ_MIPS_CPU
537	select MIPS_BONITO64
538	select MIPS_CPU_SCACHE
539	select MIPS_GIC
540	select MIPS_L1_CACHE_SHIFT_6
541	select MIPS_MSC
542	select PCI_GT64XXX_PCI0
543	select SMP_UP if SMP
544	select SWAP_IO_SPACE
545	select SYS_HAS_CPU_MIPS32_R1
546	select SYS_HAS_CPU_MIPS32_R2
547	select SYS_HAS_CPU_MIPS32_R3_5
548	select SYS_HAS_CPU_MIPS32_R5
549	select SYS_HAS_CPU_MIPS32_R6
550	select SYS_HAS_CPU_MIPS64_R1
551	select SYS_HAS_CPU_MIPS64_R2
552	select SYS_HAS_CPU_MIPS64_R6
553	select SYS_HAS_CPU_NEVADA
554	select SYS_HAS_CPU_RM7000
555	select SYS_SUPPORTS_32BIT_KERNEL
556	select SYS_SUPPORTS_64BIT_KERNEL
557	select SYS_SUPPORTS_BIG_ENDIAN
558	select SYS_SUPPORTS_HIGHMEM
559	select SYS_SUPPORTS_LITTLE_ENDIAN
560	select SYS_SUPPORTS_MICROMIPS
561	select SYS_SUPPORTS_MIPS16
562	select SYS_SUPPORTS_MIPS_CMP
563	select SYS_SUPPORTS_MIPS_CPS
564	select SYS_SUPPORTS_MULTITHREADING
565	select SYS_SUPPORTS_RELOCATABLE
566	select SYS_SUPPORTS_SMARTMIPS
567	select SYS_SUPPORTS_VPE_LOADER
568	select SYS_SUPPORTS_ZBOOT
569	select USE_OF
570	select ZONE_DMA32 if 64BIT
571	help
572	  This enables support for the MIPS Technologies Malta evaluation
573	  board.
574
575config MACH_PIC32
576	bool "Microchip PIC32 Family"
577	help
578	  This enables support for the Microchip PIC32 family of platforms.
579
580	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
581	  microcontrollers.
582
583config MACH_VR41XX
584	bool "NEC VR4100 series based machines"
585	select CEVT_R4K
586	select CSRC_R4K
587	select SYS_HAS_CPU_VR41XX
588	select SYS_SUPPORTS_MIPS16
589	select GPIOLIB
590
591config NXP_STB220
592	bool "NXP STB220 board"
593	select SOC_PNX833X
594	help
595	  Support for NXP Semiconductors STB220 Development Board.
596
597config NXP_STB225
598	bool "NXP 225 board"
599	select SOC_PNX833X
600	select SOC_PNX8335
601	help
602	  Support for NXP Semiconductors STB225 Development Board.
603
604config RALINK
605	bool "Ralink based machines"
606	select CEVT_R4K
607	select CSRC_R4K
608	select BOOT_RAW
609	select DMA_NONCOHERENT
610	select IRQ_MIPS_CPU
611	select USE_OF
612	select SYS_HAS_CPU_MIPS32_R1
613	select SYS_HAS_CPU_MIPS32_R2
614	select SYS_SUPPORTS_32BIT_KERNEL
615	select SYS_SUPPORTS_LITTLE_ENDIAN
616	select SYS_SUPPORTS_MIPS16
617	select SYS_HAS_EARLY_PRINTK
618	select CLKDEV_LOOKUP
619	select ARCH_HAS_RESET_CONTROLLER
620	select RESET_CONTROLLER
621
622config SGI_IP22
623	bool "SGI IP22 (Indy/Indigo2)"
624	select ARC_MEMORY
625	select ARC_PROMLIB
626	select FW_ARC
627	select FW_ARC32
628	select ARCH_MIGHT_HAVE_PC_SERIO
629	select BOOT_ELF32
630	select CEVT_R4K
631	select CSRC_R4K
632	select DEFAULT_SGI_PARTITION
633	select DMA_NONCOHERENT
634	select HAVE_EISA
635	select I8253
636	select I8259
637	select IP22_CPU_SCACHE
638	select IRQ_MIPS_CPU
639	select GENERIC_ISA_DMA_SUPPORT_BROKEN
640	select SGI_HAS_I8042
641	select SGI_HAS_INDYDOG
642	select SGI_HAS_HAL2
643	select SGI_HAS_SEEQ
644	select SGI_HAS_WD93
645	select SGI_HAS_ZILOG
646	select SWAP_IO_SPACE
647	select SYS_HAS_CPU_R4X00
648	select SYS_HAS_CPU_R5000
649	select SYS_HAS_EARLY_PRINTK
650	select SYS_SUPPORTS_32BIT_KERNEL
651	select SYS_SUPPORTS_64BIT_KERNEL
652	select SYS_SUPPORTS_BIG_ENDIAN
653	select MIPS_L1_CACHE_SHIFT_7
654	help
655	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
656	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
657	  that runs on these, say Y here.
658
659config SGI_IP27
660	bool "SGI IP27 (Origin200/2000)"
661	select ARCH_HAS_PHYS_TO_DMA
662	select ARCH_SPARSEMEM_ENABLE
663	select FW_ARC
664	select FW_ARC64
665	select ARC_CMDLINE_ONLY
666	select BOOT_ELF64
667	select DEFAULT_SGI_PARTITION
668	select SYS_HAS_EARLY_PRINTK
669	select HAVE_PCI
670	select IRQ_MIPS_CPU
671	select IRQ_DOMAIN_HIERARCHY
672	select NR_CPUS_DEFAULT_64
673	select PCI_DRIVERS_GENERIC
674	select PCI_XTALK_BRIDGE
675	select SYS_HAS_CPU_R10000
676	select SYS_SUPPORTS_64BIT_KERNEL
677	select SYS_SUPPORTS_BIG_ENDIAN
678	select SYS_SUPPORTS_NUMA
679	select SYS_SUPPORTS_SMP
680	select MIPS_L1_CACHE_SHIFT_7
681	help
682	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
683	  workstations.  To compile a Linux kernel that runs on these, say Y
684	  here.
685
686config SGI_IP28
687	bool "SGI IP28 (Indigo2 R10k)"
688	select ARC_MEMORY
689	select ARC_PROMLIB
690	select FW_ARC
691	select FW_ARC64
692	select ARCH_MIGHT_HAVE_PC_SERIO
693	select BOOT_ELF64
694	select CEVT_R4K
695	select CSRC_R4K
696	select DEFAULT_SGI_PARTITION
697	select DMA_NONCOHERENT
698	select GENERIC_ISA_DMA_SUPPORT_BROKEN
699	select IRQ_MIPS_CPU
700	select HAVE_EISA
701	select I8253
702	select I8259
703	select SGI_HAS_I8042
704	select SGI_HAS_INDYDOG
705	select SGI_HAS_HAL2
706	select SGI_HAS_SEEQ
707	select SGI_HAS_WD93
708	select SGI_HAS_ZILOG
709	select SWAP_IO_SPACE
710	select SYS_HAS_CPU_R10000
711	select SYS_HAS_EARLY_PRINTK
712	select SYS_SUPPORTS_64BIT_KERNEL
713	select SYS_SUPPORTS_BIG_ENDIAN
714	select MIPS_L1_CACHE_SHIFT_7
715	help
716	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
717	  kernel that runs on these, say Y here.
718
719config SGI_IP30
720	bool "SGI IP30 (Octane/Octane2)"
721	select ARCH_HAS_PHYS_TO_DMA
722	select FW_ARC
723	select FW_ARC64
724	select BOOT_ELF64
725	select CEVT_R4K
726	select CSRC_R4K
727	select SYNC_R4K if SMP
728	select ZONE_DMA32
729	select HAVE_PCI
730	select IRQ_MIPS_CPU
731	select IRQ_DOMAIN_HIERARCHY
732	select NR_CPUS_DEFAULT_2
733	select PCI_DRIVERS_GENERIC
734	select PCI_XTALK_BRIDGE
735	select SYS_HAS_EARLY_PRINTK
736	select SYS_HAS_CPU_R10000
737	select SYS_SUPPORTS_64BIT_KERNEL
738	select SYS_SUPPORTS_BIG_ENDIAN
739	select SYS_SUPPORTS_SMP
740	select MIPS_L1_CACHE_SHIFT_7
741	select ARC_MEMORY
742	help
743	  These are the SGI Octane and Octane2 graphics workstations.  To
744	  compile a Linux kernel that runs on these, say Y here.
745
746config SGI_IP32
747	bool "SGI IP32 (O2)"
748	select ARC_MEMORY
749	select ARC_PROMLIB
750	select ARCH_HAS_PHYS_TO_DMA
751	select FW_ARC
752	select FW_ARC32
753	select BOOT_ELF32
754	select CEVT_R4K
755	select CSRC_R4K
756	select DMA_NONCOHERENT
757	select HAVE_PCI
758	select IRQ_MIPS_CPU
759	select R5000_CPU_SCACHE
760	select RM7000_CPU_SCACHE
761	select SYS_HAS_CPU_R5000
762	select SYS_HAS_CPU_R10000 if BROKEN
763	select SYS_HAS_CPU_RM7000
764	select SYS_HAS_CPU_NEVADA
765	select SYS_SUPPORTS_64BIT_KERNEL
766	select SYS_SUPPORTS_BIG_ENDIAN
767	help
768	  If you want this kernel to run on SGI O2 workstation, say Y here.
769
770config SIBYTE_CRHINE
771	bool "Sibyte BCM91120C-CRhine"
772	select BOOT_ELF32
773	select SIBYTE_BCM1120
774	select SWAP_IO_SPACE
775	select SYS_HAS_CPU_SB1
776	select SYS_SUPPORTS_BIG_ENDIAN
777	select SYS_SUPPORTS_LITTLE_ENDIAN
778
779config SIBYTE_CARMEL
780	bool "Sibyte BCM91120x-Carmel"
781	select BOOT_ELF32
782	select SIBYTE_BCM1120
783	select SWAP_IO_SPACE
784	select SYS_HAS_CPU_SB1
785	select SYS_SUPPORTS_BIG_ENDIAN
786	select SYS_SUPPORTS_LITTLE_ENDIAN
787
788config SIBYTE_CRHONE
789	bool "Sibyte BCM91125C-CRhone"
790	select BOOT_ELF32
791	select SIBYTE_BCM1125
792	select SWAP_IO_SPACE
793	select SYS_HAS_CPU_SB1
794	select SYS_SUPPORTS_BIG_ENDIAN
795	select SYS_SUPPORTS_HIGHMEM
796	select SYS_SUPPORTS_LITTLE_ENDIAN
797
798config SIBYTE_RHONE
799	bool "Sibyte BCM91125E-Rhone"
800	select BOOT_ELF32
801	select SIBYTE_BCM1125H
802	select SWAP_IO_SPACE
803	select SYS_HAS_CPU_SB1
804	select SYS_SUPPORTS_BIG_ENDIAN
805	select SYS_SUPPORTS_LITTLE_ENDIAN
806
807config SIBYTE_SWARM
808	bool "Sibyte BCM91250A-SWARM"
809	select BOOT_ELF32
810	select HAVE_PATA_PLATFORM
811	select SIBYTE_SB1250
812	select SWAP_IO_SPACE
813	select SYS_HAS_CPU_SB1
814	select SYS_SUPPORTS_BIG_ENDIAN
815	select SYS_SUPPORTS_HIGHMEM
816	select SYS_SUPPORTS_LITTLE_ENDIAN
817	select ZONE_DMA32 if 64BIT
818	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
819
820config SIBYTE_LITTLESUR
821	bool "Sibyte BCM91250C2-LittleSur"
822	select BOOT_ELF32
823	select HAVE_PATA_PLATFORM
824	select SIBYTE_SB1250
825	select SWAP_IO_SPACE
826	select SYS_HAS_CPU_SB1
827	select SYS_SUPPORTS_BIG_ENDIAN
828	select SYS_SUPPORTS_HIGHMEM
829	select SYS_SUPPORTS_LITTLE_ENDIAN
830	select ZONE_DMA32 if 64BIT
831
832config SIBYTE_SENTOSA
833	bool "Sibyte BCM91250E-Sentosa"
834	select BOOT_ELF32
835	select SIBYTE_SB1250
836	select SWAP_IO_SPACE
837	select SYS_HAS_CPU_SB1
838	select SYS_SUPPORTS_BIG_ENDIAN
839	select SYS_SUPPORTS_LITTLE_ENDIAN
840	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
841
842config SIBYTE_BIGSUR
843	bool "Sibyte BCM91480B-BigSur"
844	select BOOT_ELF32
845	select NR_CPUS_DEFAULT_4
846	select SIBYTE_BCM1x80
847	select SWAP_IO_SPACE
848	select SYS_HAS_CPU_SB1
849	select SYS_SUPPORTS_BIG_ENDIAN
850	select SYS_SUPPORTS_HIGHMEM
851	select SYS_SUPPORTS_LITTLE_ENDIAN
852	select ZONE_DMA32 if 64BIT
853	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
854
855config SNI_RM
856	bool "SNI RM200/300/400"
857	select ARC_MEMORY
858	select ARC_PROMLIB
859	select FW_ARC if CPU_LITTLE_ENDIAN
860	select FW_ARC32 if CPU_LITTLE_ENDIAN
861	select FW_SNIPROM if CPU_BIG_ENDIAN
862	select ARCH_MAY_HAVE_PC_FDC
863	select ARCH_MIGHT_HAVE_PC_PARPORT
864	select ARCH_MIGHT_HAVE_PC_SERIO
865	select BOOT_ELF32
866	select CEVT_R4K
867	select CSRC_R4K
868	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
869	select DMA_NONCOHERENT
870	select GENERIC_ISA_DMA
871	select HAVE_EISA
872	select HAVE_PCSPKR_PLATFORM
873	select HAVE_PCI
874	select IRQ_MIPS_CPU
875	select I8253
876	select I8259
877	select ISA
878	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
879	select SYS_HAS_CPU_R4X00
880	select SYS_HAS_CPU_R5000
881	select SYS_HAS_CPU_R10000
882	select R5000_CPU_SCACHE
883	select SYS_HAS_EARLY_PRINTK
884	select SYS_SUPPORTS_32BIT_KERNEL
885	select SYS_SUPPORTS_64BIT_KERNEL
886	select SYS_SUPPORTS_BIG_ENDIAN
887	select SYS_SUPPORTS_HIGHMEM
888	select SYS_SUPPORTS_LITTLE_ENDIAN
889	help
890	  The SNI RM200/300/400 are MIPS-based machines manufactured by
891	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
892	  Technology and now in turn merged with Fujitsu.  Say Y here to
893	  support this machine type.
894
895config MACH_TX39XX
896	bool "Toshiba TX39 series based machines"
897
898config MACH_TX49XX
899	bool "Toshiba TX49 series based machines"
900
901config MIKROTIK_RB532
902	bool "Mikrotik RB532 boards"
903	select CEVT_R4K
904	select CSRC_R4K
905	select DMA_NONCOHERENT
906	select HAVE_PCI
907	select IRQ_MIPS_CPU
908	select SYS_HAS_CPU_MIPS32_R1
909	select SYS_SUPPORTS_32BIT_KERNEL
910	select SYS_SUPPORTS_LITTLE_ENDIAN
911	select SWAP_IO_SPACE
912	select BOOT_RAW
913	select GPIOLIB
914	select MIPS_L1_CACHE_SHIFT_4
915	help
916	  Support the Mikrotik(tm) RouterBoard 532 series,
917	  based on the IDT RC32434 SoC.
918
919config CAVIUM_OCTEON_SOC
920	bool "Cavium Networks Octeon SoC based boards"
921	select CEVT_R4K
922	select ARCH_HAS_PHYS_TO_DMA
923	select HAVE_RAPIDIO
924	select PHYS_ADDR_T_64BIT
925	select SYS_SUPPORTS_64BIT_KERNEL
926	select SYS_SUPPORTS_BIG_ENDIAN
927	select EDAC_SUPPORT
928	select EDAC_ATOMIC_SCRUB
929	select SYS_SUPPORTS_LITTLE_ENDIAN
930	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
931	select SYS_HAS_EARLY_PRINTK
932	select SYS_HAS_CPU_CAVIUM_OCTEON
933	select HAVE_PCI
934	select HAVE_PLAT_DELAY
935	select HAVE_PLAT_FW_INIT_CMDLINE
936	select HAVE_PLAT_MEMCPY
937	select ZONE_DMA32
938	select HOLES_IN_ZONE
939	select GPIOLIB
940	select USE_OF
941	select ARCH_SPARSEMEM_ENABLE
942	select SYS_SUPPORTS_SMP
943	select NR_CPUS_DEFAULT_64
944	select MIPS_NR_CPU_NR_MAP_1024
945	select BUILTIN_DTB
946	select MTD_COMPLEX_MAPPINGS
947	select SWIOTLB
948	select SYS_SUPPORTS_RELOCATABLE
949	help
950	  This option supports all of the Octeon reference boards from Cavium
951	  Networks. It builds a kernel that dynamically determines the Octeon
952	  CPU type and supports all known board reference implementations.
953	  Some of the supported boards are:
954		EBT3000
955		EBH3000
956		EBH3100
957		Thunder
958		Kodama
959		Hikari
960	  Say Y here for most Octeon reference boards.
961
962config NLM_XLR_BOARD
963	bool "Netlogic XLR/XLS based systems"
964	select BOOT_ELF32
965	select NLM_COMMON
966	select SYS_HAS_CPU_XLR
967	select SYS_SUPPORTS_SMP
968	select HAVE_PCI
969	select SWAP_IO_SPACE
970	select SYS_SUPPORTS_32BIT_KERNEL
971	select SYS_SUPPORTS_64BIT_KERNEL
972	select PHYS_ADDR_T_64BIT
973	select SYS_SUPPORTS_BIG_ENDIAN
974	select SYS_SUPPORTS_HIGHMEM
975	select NR_CPUS_DEFAULT_32
976	select CEVT_R4K
977	select CSRC_R4K
978	select IRQ_MIPS_CPU
979	select ZONE_DMA32 if 64BIT
980	select SYNC_R4K
981	select SYS_HAS_EARLY_PRINTK
982	select SYS_SUPPORTS_ZBOOT
983	select SYS_SUPPORTS_ZBOOT_UART16550
984	help
985	  Support for systems based on Netlogic XLR and XLS processors.
986	  Say Y here if you have a XLR or XLS based board.
987
988config NLM_XLP_BOARD
989	bool "Netlogic XLP based systems"
990	select BOOT_ELF32
991	select NLM_COMMON
992	select SYS_HAS_CPU_XLP
993	select SYS_SUPPORTS_SMP
994	select HAVE_PCI
995	select SYS_SUPPORTS_32BIT_KERNEL
996	select SYS_SUPPORTS_64BIT_KERNEL
997	select PHYS_ADDR_T_64BIT
998	select GPIOLIB
999	select SYS_SUPPORTS_BIG_ENDIAN
1000	select SYS_SUPPORTS_LITTLE_ENDIAN
1001	select SYS_SUPPORTS_HIGHMEM
1002	select NR_CPUS_DEFAULT_32
1003	select CEVT_R4K
1004	select CSRC_R4K
1005	select IRQ_MIPS_CPU
1006	select ZONE_DMA32 if 64BIT
1007	select SYNC_R4K
1008	select SYS_HAS_EARLY_PRINTK
1009	select USE_OF
1010	select SYS_SUPPORTS_ZBOOT
1011	select SYS_SUPPORTS_ZBOOT_UART16550
1012	help
1013	  This board is based on Netlogic XLP Processor.
1014	  Say Y here if you have a XLP based board.
1015
1016config MIPS_PARAVIRT
1017	bool "Para-Virtualized guest system"
1018	select CEVT_R4K
1019	select CSRC_R4K
1020	select SYS_SUPPORTS_64BIT_KERNEL
1021	select SYS_SUPPORTS_32BIT_KERNEL
1022	select SYS_SUPPORTS_BIG_ENDIAN
1023	select SYS_SUPPORTS_SMP
1024	select NR_CPUS_DEFAULT_4
1025	select SYS_HAS_EARLY_PRINTK
1026	select SYS_HAS_CPU_MIPS32_R2
1027	select SYS_HAS_CPU_MIPS64_R2
1028	select SYS_HAS_CPU_CAVIUM_OCTEON
1029	select HAVE_PCI
1030	select SWAP_IO_SPACE
1031	help
1032	  This option supports guest running under ????
1033
1034endchoice
1035
1036source "arch/mips/alchemy/Kconfig"
1037source "arch/mips/ath25/Kconfig"
1038source "arch/mips/ath79/Kconfig"
1039source "arch/mips/bcm47xx/Kconfig"
1040source "arch/mips/bcm63xx/Kconfig"
1041source "arch/mips/bmips/Kconfig"
1042source "arch/mips/generic/Kconfig"
1043source "arch/mips/jazz/Kconfig"
1044source "arch/mips/jz4740/Kconfig"
1045source "arch/mips/lantiq/Kconfig"
1046source "arch/mips/pic32/Kconfig"
1047source "arch/mips/pistachio/Kconfig"
1048source "arch/mips/ralink/Kconfig"
1049source "arch/mips/sgi-ip27/Kconfig"
1050source "arch/mips/sibyte/Kconfig"
1051source "arch/mips/txx9/Kconfig"
1052source "arch/mips/vr41xx/Kconfig"
1053source "arch/mips/cavium-octeon/Kconfig"
1054source "arch/mips/loongson2ef/Kconfig"
1055source "arch/mips/loongson32/Kconfig"
1056source "arch/mips/loongson64/Kconfig"
1057source "arch/mips/netlogic/Kconfig"
1058source "arch/mips/paravirt/Kconfig"
1059
1060endmenu
1061
1062config GENERIC_HWEIGHT
1063	bool
1064	default y
1065
1066config GENERIC_CALIBRATE_DELAY
1067	bool
1068	default y
1069
1070config SCHED_OMIT_FRAME_POINTER
1071	bool
1072	default y
1073
1074#
1075# Select some configuration options automatically based on user selections.
1076#
1077config FW_ARC
1078	bool
1079
1080config ARCH_MAY_HAVE_PC_FDC
1081	bool
1082
1083config BOOT_RAW
1084	bool
1085
1086config CEVT_BCM1480
1087	bool
1088
1089config CEVT_DS1287
1090	bool
1091
1092config CEVT_GT641XX
1093	bool
1094
1095config CEVT_R4K
1096	bool
1097
1098config CEVT_SB1250
1099	bool
1100
1101config CEVT_TXX9
1102	bool
1103
1104config CSRC_BCM1480
1105	bool
1106
1107config CSRC_IOASIC
1108	bool
1109
1110config CSRC_R4K
1111	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1112	bool
1113
1114config CSRC_SB1250
1115	bool
1116
1117config MIPS_CLOCK_VSYSCALL
1118	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1119
1120config GPIO_TXX9
1121	select GPIOLIB
1122	bool
1123
1124config FW_CFE
1125	bool
1126
1127config ARCH_SUPPORTS_UPROBES
1128	bool
1129
1130config DMA_MAYBE_COHERENT
1131	select ARCH_HAS_DMA_COHERENCE_H
1132	select DMA_NONCOHERENT
1133	bool
1134
1135config DMA_PERDEV_COHERENT
1136	bool
1137	select ARCH_HAS_SETUP_DMA_OPS
1138	select DMA_NONCOHERENT
1139
1140config DMA_NONCOHERENT
1141	bool
1142	#
1143	# MIPS allows mixing "slightly different" Cacheability and Coherency
1144	# Attribute bits.  It is believed that the uncached access through
1145	# KSEG1 and the implementation specific "uncached accelerated" used
1146	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1147	# significant advantages.
1148	#
1149	select ARCH_HAS_DMA_WRITE_COMBINE
1150	select ARCH_HAS_DMA_PREP_COHERENT
1151	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1152	select ARCH_HAS_DMA_SET_UNCACHED
1153	select DMA_NONCOHERENT_MMAP
1154	select DMA_NONCOHERENT_CACHE_SYNC
1155	select NEED_DMA_MAP_STATE
1156
1157config SYS_HAS_EARLY_PRINTK
1158	bool
1159
1160config SYS_SUPPORTS_HOTPLUG_CPU
1161	bool
1162
1163config MIPS_BONITO64
1164	bool
1165
1166config MIPS_MSC
1167	bool
1168
1169config SYNC_R4K
1170	bool
1171
1172config MIPS_MACHINE
1173	def_bool n
1174
1175config NO_IOPORT_MAP
1176	def_bool n
1177
1178config GENERIC_CSUM
1179	def_bool CPU_NO_LOAD_STORE_LR
1180
1181config GENERIC_ISA_DMA
1182	bool
1183	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1184	select ISA_DMA_API
1185
1186config GENERIC_ISA_DMA_SUPPORT_BROKEN
1187	bool
1188	select GENERIC_ISA_DMA
1189
1190config HAVE_PLAT_DELAY
1191	bool
1192
1193config HAVE_PLAT_FW_INIT_CMDLINE
1194	bool
1195
1196config HAVE_PLAT_MEMCPY
1197	bool
1198
1199config ISA_DMA_API
1200	bool
1201
1202config HOLES_IN_ZONE
1203	bool
1204
1205config SYS_SUPPORTS_RELOCATABLE
1206	bool
1207	help
1208	  Selected if the platform supports relocating the kernel.
1209	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1210	  to allow access to command line and entropy sources.
1211
1212config MIPS_CBPF_JIT
1213	def_bool y
1214	depends on BPF_JIT && HAVE_CBPF_JIT
1215
1216config MIPS_EBPF_JIT
1217	def_bool y
1218	depends on BPF_JIT && HAVE_EBPF_JIT
1219
1220
1221#
1222# Endianness selection.  Sufficiently obscure so many users don't know what to
1223# answer,so we try hard to limit the available choices.  Also the use of a
1224# choice statement should be more obvious to the user.
1225#
1226choice
1227	prompt "Endianness selection"
1228	help
1229	  Some MIPS machines can be configured for either little or big endian
1230	  byte order. These modes require different kernels and a different
1231	  Linux distribution.  In general there is one preferred byteorder for a
1232	  particular system but some systems are just as commonly used in the
1233	  one or the other endianness.
1234
1235config CPU_BIG_ENDIAN
1236	bool "Big endian"
1237	depends on SYS_SUPPORTS_BIG_ENDIAN
1238
1239config CPU_LITTLE_ENDIAN
1240	bool "Little endian"
1241	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1242
1243endchoice
1244
1245config EXPORT_UASM
1246	bool
1247
1248config SYS_SUPPORTS_APM_EMULATION
1249	bool
1250
1251config SYS_SUPPORTS_BIG_ENDIAN
1252	bool
1253
1254config SYS_SUPPORTS_LITTLE_ENDIAN
1255	bool
1256
1257config SYS_SUPPORTS_HUGETLBFS
1258	bool
1259	depends on CPU_SUPPORTS_HUGEPAGES
1260	default y
1261
1262config MIPS_HUGE_TLB_SUPPORT
1263	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1264
1265config IRQ_CPU_RM7K
1266	bool
1267
1268config IRQ_MSP_SLP
1269	bool
1270
1271config IRQ_MSP_CIC
1272	bool
1273
1274config IRQ_TXX9
1275	bool
1276
1277config IRQ_GT641XX
1278	bool
1279
1280config PCI_GT64XXX_PCI0
1281	bool
1282
1283config PCI_XTALK_BRIDGE
1284	bool
1285
1286config NO_EXCEPT_FILL
1287	bool
1288
1289config SOC_PNX833X
1290	bool
1291	select CEVT_R4K
1292	select CSRC_R4K
1293	select IRQ_MIPS_CPU
1294	select DMA_NONCOHERENT
1295	select SYS_HAS_CPU_MIPS32_R2
1296	select SYS_SUPPORTS_32BIT_KERNEL
1297	select SYS_SUPPORTS_LITTLE_ENDIAN
1298	select SYS_SUPPORTS_BIG_ENDIAN
1299	select SYS_SUPPORTS_MIPS16
1300	select CPU_MIPSR2_IRQ_VI
1301
1302config SOC_PNX8335
1303	bool
1304	select SOC_PNX833X
1305
1306config MIPS_SPRAM
1307	bool
1308
1309config SWAP_IO_SPACE
1310	bool
1311
1312config SGI_HAS_INDYDOG
1313	bool
1314
1315config SGI_HAS_HAL2
1316	bool
1317
1318config SGI_HAS_SEEQ
1319	bool
1320
1321config SGI_HAS_WD93
1322	bool
1323
1324config SGI_HAS_ZILOG
1325	bool
1326
1327config SGI_HAS_I8042
1328	bool
1329
1330config DEFAULT_SGI_PARTITION
1331	bool
1332
1333config FW_ARC32
1334	bool
1335
1336config FW_SNIPROM
1337	bool
1338
1339config BOOT_ELF32
1340	bool
1341
1342config MIPS_L1_CACHE_SHIFT_4
1343	bool
1344
1345config MIPS_L1_CACHE_SHIFT_5
1346	bool
1347
1348config MIPS_L1_CACHE_SHIFT_6
1349	bool
1350
1351config MIPS_L1_CACHE_SHIFT_7
1352	bool
1353
1354config MIPS_L1_CACHE_SHIFT
1355	int
1356	default "7" if MIPS_L1_CACHE_SHIFT_7
1357	default "6" if MIPS_L1_CACHE_SHIFT_6
1358	default "5" if MIPS_L1_CACHE_SHIFT_5
1359	default "4" if MIPS_L1_CACHE_SHIFT_4
1360	default "5"
1361
1362config ARC_CMDLINE_ONLY
1363	bool
1364
1365config ARC_CONSOLE
1366	bool "ARC console support"
1367	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1368
1369config ARC_MEMORY
1370	bool
1371
1372config ARC_PROMLIB
1373	bool
1374
1375config FW_ARC64
1376	bool
1377
1378config BOOT_ELF64
1379	bool
1380
1381menu "CPU selection"
1382
1383choice
1384	prompt "CPU type"
1385	default CPU_R4X00
1386
1387config CPU_LOONGSON64
1388	bool "Loongson 64-bit CPU"
1389	depends on SYS_HAS_CPU_LOONGSON64
1390	select ARCH_HAS_PHYS_TO_DMA
1391	select CPU_MIPSR2
1392	select CPU_HAS_PREFETCH
1393	select CPU_SUPPORTS_64BIT_KERNEL
1394	select CPU_SUPPORTS_HIGHMEM
1395	select CPU_SUPPORTS_HUGEPAGES
1396	select CPU_SUPPORTS_MSA
1397	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1398	select CPU_MIPSR2_IRQ_VI
1399	select WEAK_ORDERING
1400	select WEAK_REORDERING_BEYOND_LLSC
1401	select MIPS_ASID_BITS_VARIABLE
1402	select MIPS_PGD_C0_CONTEXT
1403	select MIPS_L1_CACHE_SHIFT_6
1404	select GPIOLIB
1405	select SWIOTLB
1406	select HAVE_KVM
1407	help
1408		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1409		cores implements the MIPS64R2 instruction set with many extensions,
1410		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1411		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1412		Loongson-2E/2F is not covered here and will be removed in future.
1413
1414config LOONGSON3_ENHANCEMENT
1415	bool "New Loongson-3 CPU Enhancements"
1416	default n
1417	depends on CPU_LOONGSON64
1418	help
1419	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1420	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1421	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1422	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1423	  Fast TLB refill support, etc.
1424
1425	  This option enable those enhancements which are not probed at run
1426	  time. If you want a generic kernel to run on all Loongson 3 machines,
1427	  please say 'N' here. If you want a high-performance kernel to run on
1428	  new Loongson-3 machines only, please say 'Y' here.
1429
1430config CPU_LOONGSON3_WORKAROUNDS
1431	bool "Old Loongson-3 LLSC Workarounds"
1432	default y if SMP
1433	depends on CPU_LOONGSON64
1434	help
1435	  Loongson-3 processors have the llsc issues which require workarounds.
1436	  Without workarounds the system may hang unexpectedly.
1437
1438	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1439	  The workarounds have no significant side effect on them but may
1440	  decrease the performance of the system so this option should be
1441	  disabled unless the kernel is intended to be run on old systems.
1442
1443	  If unsure, please say Y.
1444
1445config CPU_LOONGSON3_CPUCFG_EMULATION
1446	bool "Emulate the CPUCFG instruction on older Loongson cores"
1447	default y
1448	depends on CPU_LOONGSON64
1449	help
1450	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1451	  userland to query CPU capabilities, much like CPUID on x86. This
1452	  option provides emulation of the instruction on older Loongson
1453	  cores, back to Loongson-3A1000.
1454
1455	  If unsure, please say Y.
1456
1457config CPU_LOONGSON2E
1458	bool "Loongson 2E"
1459	depends on SYS_HAS_CPU_LOONGSON2E
1460	select CPU_LOONGSON2EF
1461	help
1462	  The Loongson 2E processor implements the MIPS III instruction set
1463	  with many extensions.
1464
1465	  It has an internal FPGA northbridge, which is compatible to
1466	  bonito64.
1467
1468config CPU_LOONGSON2F
1469	bool "Loongson 2F"
1470	depends on SYS_HAS_CPU_LOONGSON2F
1471	select CPU_LOONGSON2EF
1472	select GPIOLIB
1473	help
1474	  The Loongson 2F processor implements the MIPS III instruction set
1475	  with many extensions.
1476
1477	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1478	  have a similar programming interface with FPGA northbridge used in
1479	  Loongson2E.
1480
1481config CPU_LOONGSON1B
1482	bool "Loongson 1B"
1483	depends on SYS_HAS_CPU_LOONGSON1B
1484	select CPU_LOONGSON32
1485	select LEDS_GPIO_REGISTER
1486	help
1487	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1488	  Release 1 instruction set and part of the MIPS32 Release 2
1489	  instruction set.
1490
1491config CPU_LOONGSON1C
1492	bool "Loongson 1C"
1493	depends on SYS_HAS_CPU_LOONGSON1C
1494	select CPU_LOONGSON32
1495	select LEDS_GPIO_REGISTER
1496	help
1497	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1498	  Release 1 instruction set and part of the MIPS32 Release 2
1499	  instruction set.
1500
1501config CPU_MIPS32_R1
1502	bool "MIPS32 Release 1"
1503	depends on SYS_HAS_CPU_MIPS32_R1
1504	select CPU_HAS_PREFETCH
1505	select CPU_SUPPORTS_32BIT_KERNEL
1506	select CPU_SUPPORTS_HIGHMEM
1507	help
1508	  Choose this option to build a kernel for release 1 or later of the
1509	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1510	  MIPS processor are based on a MIPS32 processor.  If you know the
1511	  specific type of processor in your system, choose those that one
1512	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1513	  Release 2 of the MIPS32 architecture is available since several
1514	  years so chances are you even have a MIPS32 Release 2 processor
1515	  in which case you should choose CPU_MIPS32_R2 instead for better
1516	  performance.
1517
1518config CPU_MIPS32_R2
1519	bool "MIPS32 Release 2"
1520	depends on SYS_HAS_CPU_MIPS32_R2
1521	select CPU_HAS_PREFETCH
1522	select CPU_SUPPORTS_32BIT_KERNEL
1523	select CPU_SUPPORTS_HIGHMEM
1524	select CPU_SUPPORTS_MSA
1525	select HAVE_KVM
1526	help
1527	  Choose this option to build a kernel for release 2 or later of the
1528	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1529	  MIPS processor are based on a MIPS32 processor.  If you know the
1530	  specific type of processor in your system, choose those that one
1531	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1532
1533config CPU_MIPS32_R5
1534	bool "MIPS32 Release 5"
1535	depends on SYS_HAS_CPU_MIPS32_R5
1536	select CPU_HAS_PREFETCH
1537	select CPU_SUPPORTS_32BIT_KERNEL
1538	select CPU_SUPPORTS_HIGHMEM
1539	select CPU_SUPPORTS_MSA
1540	select HAVE_KVM
1541	select MIPS_O32_FP64_SUPPORT
1542	help
1543	  Choose this option to build a kernel for release 5 or later of the
1544	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1545	  family, are based on a MIPS32r5 processor. If you own an older
1546	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1547
1548config CPU_MIPS32_R6
1549	bool "MIPS32 Release 6"
1550	depends on SYS_HAS_CPU_MIPS32_R6
1551	select CPU_HAS_PREFETCH
1552	select CPU_NO_LOAD_STORE_LR
1553	select CPU_SUPPORTS_32BIT_KERNEL
1554	select CPU_SUPPORTS_HIGHMEM
1555	select CPU_SUPPORTS_MSA
1556	select HAVE_KVM
1557	select MIPS_O32_FP64_SUPPORT
1558	help
1559	  Choose this option to build a kernel for release 6 or later of the
1560	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1561	  family, are based on a MIPS32r6 processor. If you own an older
1562	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1563
1564config CPU_MIPS64_R1
1565	bool "MIPS64 Release 1"
1566	depends on SYS_HAS_CPU_MIPS64_R1
1567	select CPU_HAS_PREFETCH
1568	select CPU_SUPPORTS_32BIT_KERNEL
1569	select CPU_SUPPORTS_64BIT_KERNEL
1570	select CPU_SUPPORTS_HIGHMEM
1571	select CPU_SUPPORTS_HUGEPAGES
1572	help
1573	  Choose this option to build a kernel for release 1 or later of the
1574	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1575	  MIPS processor are based on a MIPS64 processor.  If you know the
1576	  specific type of processor in your system, choose those that one
1577	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1578	  Release 2 of the MIPS64 architecture is available since several
1579	  years so chances are you even have a MIPS64 Release 2 processor
1580	  in which case you should choose CPU_MIPS64_R2 instead for better
1581	  performance.
1582
1583config CPU_MIPS64_R2
1584	bool "MIPS64 Release 2"
1585	depends on SYS_HAS_CPU_MIPS64_R2
1586	select CPU_HAS_PREFETCH
1587	select CPU_SUPPORTS_32BIT_KERNEL
1588	select CPU_SUPPORTS_64BIT_KERNEL
1589	select CPU_SUPPORTS_HIGHMEM
1590	select CPU_SUPPORTS_HUGEPAGES
1591	select CPU_SUPPORTS_MSA
1592	select HAVE_KVM
1593	help
1594	  Choose this option to build a kernel for release 2 or later of the
1595	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1596	  MIPS processor are based on a MIPS64 processor.  If you know the
1597	  specific type of processor in your system, choose those that one
1598	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1599
1600config CPU_MIPS64_R5
1601	bool "MIPS64 Release 5"
1602	depends on SYS_HAS_CPU_MIPS64_R5
1603	select CPU_HAS_PREFETCH
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 5 or later of the
1613	  MIPS64 architecture.  This is a intermediate MIPS architecture
1614	  release partly implementing release 6 features. Though there is no
1615	  any hardware known to be based on this release.
1616
1617config CPU_MIPS64_R6
1618	bool "MIPS64 Release 6"
1619	depends on SYS_HAS_CPU_MIPS64_R6
1620	select CPU_HAS_PREFETCH
1621	select CPU_NO_LOAD_STORE_LR
1622	select CPU_SUPPORTS_32BIT_KERNEL
1623	select CPU_SUPPORTS_64BIT_KERNEL
1624	select CPU_SUPPORTS_HIGHMEM
1625	select CPU_SUPPORTS_HUGEPAGES
1626	select CPU_SUPPORTS_MSA
1627	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1628	select HAVE_KVM
1629	help
1630	  Choose this option to build a kernel for release 6 or later of the
1631	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1632	  family, are based on a MIPS64r6 processor. If you own an older
1633	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1634
1635config CPU_P5600
1636	bool "MIPS Warrior P5600"
1637	depends on SYS_HAS_CPU_P5600
1638	select CPU_HAS_PREFETCH
1639	select CPU_SUPPORTS_32BIT_KERNEL
1640	select CPU_SUPPORTS_HIGHMEM
1641	select CPU_SUPPORTS_MSA
1642	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1643	select CPU_SUPPORTS_CPUFREQ
1644	select CPU_MIPSR2_IRQ_VI
1645	select CPU_MIPSR2_IRQ_EI
1646	select HAVE_KVM
1647	select MIPS_O32_FP64_SUPPORT
1648	help
1649	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1650	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1651	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1652	  level features like up to six P5600 calculation cores, CM2 with L2
1653	  cache, IOCU/IOMMU (though might be unused depending on the system-
1654	  specific IP core configuration), GIC, CPC, virtualisation module,
1655	  eJTAG and PDtrace.
1656
1657config CPU_R3000
1658	bool "R3000"
1659	depends on SYS_HAS_CPU_R3000
1660	select CPU_HAS_WB
1661	select CPU_R3K_TLB
1662	select CPU_SUPPORTS_32BIT_KERNEL
1663	select CPU_SUPPORTS_HIGHMEM
1664	help
1665	  Please make sure to pick the right CPU type. Linux/MIPS is not
1666	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1667	  *not* work on R4000 machines and vice versa.  However, since most
1668	  of the supported machines have an R4000 (or similar) CPU, R4x00
1669	  might be a safe bet.  If the resulting kernel does not work,
1670	  try to recompile with R3000.
1671
1672config CPU_TX39XX
1673	bool "R39XX"
1674	depends on SYS_HAS_CPU_TX39XX
1675	select CPU_SUPPORTS_32BIT_KERNEL
1676	select CPU_R3K_TLB
1677
1678config CPU_VR41XX
1679	bool "R41xx"
1680	depends on SYS_HAS_CPU_VR41XX
1681	select CPU_SUPPORTS_32BIT_KERNEL
1682	select CPU_SUPPORTS_64BIT_KERNEL
1683	help
1684	  The options selects support for the NEC VR4100 series of processors.
1685	  Only choose this option if you have one of these processors as a
1686	  kernel built with this option will not run on any other type of
1687	  processor or vice versa.
1688
1689config CPU_R4X00
1690	bool "R4x00"
1691	depends on SYS_HAS_CPU_R4X00
1692	select CPU_SUPPORTS_32BIT_KERNEL
1693	select CPU_SUPPORTS_64BIT_KERNEL
1694	select CPU_SUPPORTS_HUGEPAGES
1695	help
1696	  MIPS Technologies R4000-series processors other than 4300, including
1697	  the R4000, R4400, R4600, and 4700.
1698
1699config CPU_TX49XX
1700	bool "R49XX"
1701	depends on SYS_HAS_CPU_TX49XX
1702	select CPU_HAS_PREFETCH
1703	select CPU_SUPPORTS_32BIT_KERNEL
1704	select CPU_SUPPORTS_64BIT_KERNEL
1705	select CPU_SUPPORTS_HUGEPAGES
1706
1707config CPU_R5000
1708	bool "R5000"
1709	depends on SYS_HAS_CPU_R5000
1710	select CPU_SUPPORTS_32BIT_KERNEL
1711	select CPU_SUPPORTS_64BIT_KERNEL
1712	select CPU_SUPPORTS_HUGEPAGES
1713	help
1714	  MIPS Technologies R5000-series processors other than the Nevada.
1715
1716config CPU_R5500
1717	bool "R5500"
1718	depends on SYS_HAS_CPU_R5500
1719	select CPU_SUPPORTS_32BIT_KERNEL
1720	select CPU_SUPPORTS_64BIT_KERNEL
1721	select CPU_SUPPORTS_HUGEPAGES
1722	help
1723	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1724	  instruction set.
1725
1726config CPU_NEVADA
1727	bool "RM52xx"
1728	depends on SYS_HAS_CPU_NEVADA
1729	select CPU_SUPPORTS_32BIT_KERNEL
1730	select CPU_SUPPORTS_64BIT_KERNEL
1731	select CPU_SUPPORTS_HUGEPAGES
1732	help
1733	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1734
1735config CPU_R10000
1736	bool "R10000"
1737	depends on SYS_HAS_CPU_R10000
1738	select CPU_HAS_PREFETCH
1739	select CPU_SUPPORTS_32BIT_KERNEL
1740	select CPU_SUPPORTS_64BIT_KERNEL
1741	select CPU_SUPPORTS_HIGHMEM
1742	select CPU_SUPPORTS_HUGEPAGES
1743	help
1744	  MIPS Technologies R10000-series processors.
1745
1746config CPU_RM7000
1747	bool "RM7000"
1748	depends on SYS_HAS_CPU_RM7000
1749	select CPU_HAS_PREFETCH
1750	select CPU_SUPPORTS_32BIT_KERNEL
1751	select CPU_SUPPORTS_64BIT_KERNEL
1752	select CPU_SUPPORTS_HIGHMEM
1753	select CPU_SUPPORTS_HUGEPAGES
1754
1755config CPU_SB1
1756	bool "SB1"
1757	depends on SYS_HAS_CPU_SB1
1758	select CPU_SUPPORTS_32BIT_KERNEL
1759	select CPU_SUPPORTS_64BIT_KERNEL
1760	select CPU_SUPPORTS_HIGHMEM
1761	select CPU_SUPPORTS_HUGEPAGES
1762	select WEAK_ORDERING
1763
1764config CPU_CAVIUM_OCTEON
1765	bool "Cavium Octeon processor"
1766	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1767	select CPU_HAS_PREFETCH
1768	select CPU_SUPPORTS_64BIT_KERNEL
1769	select WEAK_ORDERING
1770	select CPU_SUPPORTS_HIGHMEM
1771	select CPU_SUPPORTS_HUGEPAGES
1772	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1773	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1774	select MIPS_L1_CACHE_SHIFT_7
1775	select HAVE_KVM
1776	help
1777	  The Cavium Octeon processor is a highly integrated chip containing
1778	  many ethernet hardware widgets for networking tasks. The processor
1779	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1780	  Full details can be found at http://www.caviumnetworks.com.
1781
1782config CPU_BMIPS
1783	bool "Broadcom BMIPS"
1784	depends on SYS_HAS_CPU_BMIPS
1785	select CPU_MIPS32
1786	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1787	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1788	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1789	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1790	select CPU_SUPPORTS_32BIT_KERNEL
1791	select DMA_NONCOHERENT
1792	select IRQ_MIPS_CPU
1793	select SWAP_IO_SPACE
1794	select WEAK_ORDERING
1795	select CPU_SUPPORTS_HIGHMEM
1796	select CPU_HAS_PREFETCH
1797	select CPU_SUPPORTS_CPUFREQ
1798	select MIPS_EXTERNAL_TIMER
1799	help
1800	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1801
1802config CPU_XLR
1803	bool "Netlogic XLR SoC"
1804	depends on SYS_HAS_CPU_XLR
1805	select CPU_SUPPORTS_32BIT_KERNEL
1806	select CPU_SUPPORTS_64BIT_KERNEL
1807	select CPU_SUPPORTS_HIGHMEM
1808	select CPU_SUPPORTS_HUGEPAGES
1809	select WEAK_ORDERING
1810	select WEAK_REORDERING_BEYOND_LLSC
1811	help
1812	  Netlogic Microsystems XLR/XLS processors.
1813
1814config CPU_XLP
1815	bool "Netlogic XLP SoC"
1816	depends on SYS_HAS_CPU_XLP
1817	select CPU_SUPPORTS_32BIT_KERNEL
1818	select CPU_SUPPORTS_64BIT_KERNEL
1819	select CPU_SUPPORTS_HIGHMEM
1820	select WEAK_ORDERING
1821	select WEAK_REORDERING_BEYOND_LLSC
1822	select CPU_HAS_PREFETCH
1823	select CPU_MIPSR2
1824	select CPU_SUPPORTS_HUGEPAGES
1825	select MIPS_ASID_BITS_VARIABLE
1826	help
1827	  Netlogic Microsystems XLP processors.
1828endchoice
1829
1830config CPU_MIPS32_3_5_FEATURES
1831	bool "MIPS32 Release 3.5 Features"
1832	depends on SYS_HAS_CPU_MIPS32_R3_5
1833	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1834		   CPU_P5600
1835	help
1836	  Choose this option to build a kernel for release 2 or later of the
1837	  MIPS32 architecture including features from the 3.5 release such as
1838	  support for Enhanced Virtual Addressing (EVA).
1839
1840config CPU_MIPS32_3_5_EVA
1841	bool "Enhanced Virtual Addressing (EVA)"
1842	depends on CPU_MIPS32_3_5_FEATURES
1843	select EVA
1844	default y
1845	help
1846	  Choose this option if you want to enable the Enhanced Virtual
1847	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1848	  One of its primary benefits is an increase in the maximum size
1849	  of lowmem (up to 3GB). If unsure, say 'N' here.
1850
1851config CPU_MIPS32_R5_FEATURES
1852	bool "MIPS32 Release 5 Features"
1853	depends on SYS_HAS_CPU_MIPS32_R5
1854	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1855	help
1856	  Choose this option to build a kernel for release 2 or later of the
1857	  MIPS32 architecture including features from release 5 such as
1858	  support for Extended Physical Addressing (XPA).
1859
1860config CPU_MIPS32_R5_XPA
1861	bool "Extended Physical Addressing (XPA)"
1862	depends on CPU_MIPS32_R5_FEATURES
1863	depends on !EVA
1864	depends on !PAGE_SIZE_4KB
1865	depends on SYS_SUPPORTS_HIGHMEM
1866	select XPA
1867	select HIGHMEM
1868	select PHYS_ADDR_T_64BIT
1869	default n
1870	help
1871	  Choose this option if you want to enable the Extended Physical
1872	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1873	  benefit is to increase physical addressing equal to or greater
1874	  than 40 bits. Note that this has the side effect of turning on
1875	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1876	  If unsure, say 'N' here.
1877
1878if CPU_LOONGSON2F
1879config CPU_NOP_WORKAROUNDS
1880	bool
1881
1882config CPU_JUMP_WORKAROUNDS
1883	bool
1884
1885config CPU_LOONGSON2F_WORKAROUNDS
1886	bool "Loongson 2F Workarounds"
1887	default y
1888	select CPU_NOP_WORKAROUNDS
1889	select CPU_JUMP_WORKAROUNDS
1890	help
1891	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1892	  require workarounds.  Without workarounds the system may hang
1893	  unexpectedly.  For more information please refer to the gas
1894	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1895
1896	  Loongson 2F03 and later have fixed these issues and no workarounds
1897	  are needed.  The workarounds have no significant side effect on them
1898	  but may decrease the performance of the system so this option should
1899	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1900	  systems.
1901
1902	  If unsure, please say Y.
1903endif # CPU_LOONGSON2F
1904
1905config SYS_SUPPORTS_ZBOOT
1906	bool
1907	select HAVE_KERNEL_GZIP
1908	select HAVE_KERNEL_BZIP2
1909	select HAVE_KERNEL_LZ4
1910	select HAVE_KERNEL_LZMA
1911	select HAVE_KERNEL_LZO
1912	select HAVE_KERNEL_XZ
1913
1914config SYS_SUPPORTS_ZBOOT_UART16550
1915	bool
1916	select SYS_SUPPORTS_ZBOOT
1917
1918config SYS_SUPPORTS_ZBOOT_UART_PROM
1919	bool
1920	select SYS_SUPPORTS_ZBOOT
1921
1922config CPU_LOONGSON2EF
1923	bool
1924	select CPU_SUPPORTS_32BIT_KERNEL
1925	select CPU_SUPPORTS_64BIT_KERNEL
1926	select CPU_SUPPORTS_HIGHMEM
1927	select CPU_SUPPORTS_HUGEPAGES
1928	select ARCH_HAS_PHYS_TO_DMA
1929
1930config CPU_LOONGSON32
1931	bool
1932	select CPU_MIPS32
1933	select CPU_MIPSR2
1934	select CPU_HAS_PREFETCH
1935	select CPU_SUPPORTS_32BIT_KERNEL
1936	select CPU_SUPPORTS_HIGHMEM
1937	select CPU_SUPPORTS_CPUFREQ
1938
1939config CPU_BMIPS32_3300
1940	select SMP_UP if SMP
1941	bool
1942
1943config CPU_BMIPS4350
1944	bool
1945	select SYS_SUPPORTS_SMP
1946	select SYS_SUPPORTS_HOTPLUG_CPU
1947
1948config CPU_BMIPS4380
1949	bool
1950	select MIPS_L1_CACHE_SHIFT_6
1951	select SYS_SUPPORTS_SMP
1952	select SYS_SUPPORTS_HOTPLUG_CPU
1953	select CPU_HAS_RIXI
1954
1955config CPU_BMIPS5000
1956	bool
1957	select MIPS_CPU_SCACHE
1958	select MIPS_L1_CACHE_SHIFT_7
1959	select SYS_SUPPORTS_SMP
1960	select SYS_SUPPORTS_HOTPLUG_CPU
1961	select CPU_HAS_RIXI
1962
1963config SYS_HAS_CPU_LOONGSON64
1964	bool
1965	select CPU_SUPPORTS_CPUFREQ
1966	select CPU_HAS_RIXI
1967
1968config SYS_HAS_CPU_LOONGSON2E
1969	bool
1970
1971config SYS_HAS_CPU_LOONGSON2F
1972	bool
1973	select CPU_SUPPORTS_CPUFREQ
1974	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1975
1976config SYS_HAS_CPU_LOONGSON1B
1977	bool
1978
1979config SYS_HAS_CPU_LOONGSON1C
1980	bool
1981
1982config SYS_HAS_CPU_MIPS32_R1
1983	bool
1984
1985config SYS_HAS_CPU_MIPS32_R2
1986	bool
1987
1988config SYS_HAS_CPU_MIPS32_R3_5
1989	bool
1990
1991config SYS_HAS_CPU_MIPS32_R5
1992	bool
1993	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1994
1995config SYS_HAS_CPU_MIPS32_R6
1996	bool
1997	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1998
1999config SYS_HAS_CPU_MIPS64_R1
2000	bool
2001
2002config SYS_HAS_CPU_MIPS64_R2
2003	bool
2004
2005config SYS_HAS_CPU_MIPS64_R6
2006	bool
2007	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2008
2009config SYS_HAS_CPU_P5600
2010	bool
2011	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2012
2013config SYS_HAS_CPU_R3000
2014	bool
2015
2016config SYS_HAS_CPU_TX39XX
2017	bool
2018
2019config SYS_HAS_CPU_VR41XX
2020	bool
2021
2022config SYS_HAS_CPU_R4X00
2023	bool
2024
2025config SYS_HAS_CPU_TX49XX
2026	bool
2027
2028config SYS_HAS_CPU_R5000
2029	bool
2030
2031config SYS_HAS_CPU_R5500
2032	bool
2033
2034config SYS_HAS_CPU_NEVADA
2035	bool
2036
2037config SYS_HAS_CPU_R10000
2038	bool
2039	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2040
2041config SYS_HAS_CPU_RM7000
2042	bool
2043
2044config SYS_HAS_CPU_SB1
2045	bool
2046
2047config SYS_HAS_CPU_CAVIUM_OCTEON
2048	bool
2049
2050config SYS_HAS_CPU_BMIPS
2051	bool
2052
2053config SYS_HAS_CPU_BMIPS32_3300
2054	bool
2055	select SYS_HAS_CPU_BMIPS
2056
2057config SYS_HAS_CPU_BMIPS4350
2058	bool
2059	select SYS_HAS_CPU_BMIPS
2060
2061config SYS_HAS_CPU_BMIPS4380
2062	bool
2063	select SYS_HAS_CPU_BMIPS
2064
2065config SYS_HAS_CPU_BMIPS5000
2066	bool
2067	select SYS_HAS_CPU_BMIPS
2068	select ARCH_HAS_SYNC_DMA_FOR_CPU
2069
2070config SYS_HAS_CPU_XLR
2071	bool
2072
2073config SYS_HAS_CPU_XLP
2074	bool
2075
2076#
2077# CPU may reorder R->R, R->W, W->R, W->W
2078# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2079#
2080config WEAK_ORDERING
2081	bool
2082
2083#
2084# CPU may reorder reads and writes beyond LL/SC
2085# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2086#
2087config WEAK_REORDERING_BEYOND_LLSC
2088	bool
2089endmenu
2090
2091#
2092# These two indicate any level of the MIPS32 and MIPS64 architecture
2093#
2094config CPU_MIPS32
2095	bool
2096	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2097		     CPU_MIPS32_R6 || CPU_P5600
2098
2099config CPU_MIPS64
2100	bool
2101	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2102		     CPU_MIPS64_R6
2103
2104#
2105# These indicate the revision of the architecture
2106#
2107config CPU_MIPSR1
2108	bool
2109	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2110
2111config CPU_MIPSR2
2112	bool
2113	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2114	select CPU_HAS_RIXI
2115	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2116	select MIPS_SPRAM
2117
2118config CPU_MIPSR5
2119	bool
2120	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2121	select CPU_HAS_RIXI
2122	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2123	select MIPS_SPRAM
2124
2125config CPU_MIPSR6
2126	bool
2127	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2128	select CPU_HAS_RIXI
2129	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2130	select HAVE_ARCH_BITREVERSE
2131	select MIPS_ASID_BITS_VARIABLE
2132	select MIPS_CRC_SUPPORT
2133	select MIPS_SPRAM
2134
2135config TARGET_ISA_REV
2136	int
2137	default 1 if CPU_MIPSR1
2138	default 2 if CPU_MIPSR2
2139	default 5 if CPU_MIPSR5
2140	default 6 if CPU_MIPSR6
2141	default 0
2142	help
2143	  Reflects the ISA revision being targeted by the kernel build. This
2144	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2145
2146config EVA
2147	bool
2148
2149config XPA
2150	bool
2151
2152config SYS_SUPPORTS_32BIT_KERNEL
2153	bool
2154config SYS_SUPPORTS_64BIT_KERNEL
2155	bool
2156config CPU_SUPPORTS_32BIT_KERNEL
2157	bool
2158config CPU_SUPPORTS_64BIT_KERNEL
2159	bool
2160config CPU_SUPPORTS_CPUFREQ
2161	bool
2162config CPU_SUPPORTS_ADDRWINCFG
2163	bool
2164config CPU_SUPPORTS_HUGEPAGES
2165	bool
2166	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2167config MIPS_PGD_C0_CONTEXT
2168	bool
2169	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2170
2171#
2172# Set to y for ptrace access to watch registers.
2173#
2174config HARDWARE_WATCHPOINTS
2175	bool
2176	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2177
2178menu "Kernel type"
2179
2180choice
2181	prompt "Kernel code model"
2182	help
2183	  You should only select this option if you have a workload that
2184	  actually benefits from 64-bit processing or if your machine has
2185	  large memory.  You will only be presented a single option in this
2186	  menu if your system does not support both 32-bit and 64-bit kernels.
2187
2188config 32BIT
2189	bool "32-bit kernel"
2190	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2191	select TRAD_SIGNALS
2192	help
2193	  Select this option if you want to build a 32-bit kernel.
2194
2195config 64BIT
2196	bool "64-bit kernel"
2197	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2198	help
2199	  Select this option if you want to build a 64-bit kernel.
2200
2201endchoice
2202
2203config KVM_GUEST
2204	bool "KVM Guest Kernel"
2205	depends on BROKEN_ON_SMP
2206	help
2207	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2208	  mode.
2209
2210config KVM_GUEST_TIMER_FREQ
2211	int "Count/Compare Timer Frequency (MHz)"
2212	depends on KVM_GUEST
2213	default 100
2214	help
2215	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2216	  emulation when determining guest CPU Frequency. Instead, the guest's
2217	  timer frequency is specified directly.
2218
2219config MIPS_VA_BITS_48
2220	bool "48 bits virtual memory"
2221	depends on 64BIT
2222	help
2223	  Support a maximum at least 48 bits of application virtual
2224	  memory.  Default is 40 bits or less, depending on the CPU.
2225	  For page sizes 16k and above, this option results in a small
2226	  memory overhead for page tables.  For 4k page size, a fourth
2227	  level of page tables is added which imposes both a memory
2228	  overhead as well as slower TLB fault handling.
2229
2230	  If unsure, say N.
2231
2232choice
2233	prompt "Kernel page size"
2234	default PAGE_SIZE_4KB
2235
2236config PAGE_SIZE_4KB
2237	bool "4kB"
2238	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2239	help
2240	  This option select the standard 4kB Linux page size.  On some
2241	  R3000-family processors this is the only available page size.  Using
2242	  4kB page size will minimize memory consumption and is therefore
2243	  recommended for low memory systems.
2244
2245config PAGE_SIZE_8KB
2246	bool "8kB"
2247	depends on CPU_CAVIUM_OCTEON
2248	depends on !MIPS_VA_BITS_48
2249	help
2250	  Using 8kB page size will result in higher performance kernel at
2251	  the price of higher memory consumption.  This option is available
2252	  only on cnMIPS processors.  Note that you will need a suitable Linux
2253	  distribution to support this.
2254
2255config PAGE_SIZE_16KB
2256	bool "16kB"
2257	depends on !CPU_R3000 && !CPU_TX39XX
2258	help
2259	  Using 16kB page size will result in higher performance kernel at
2260	  the price of higher memory consumption.  This option is available on
2261	  all non-R3000 family processors.  Note that you will need a suitable
2262	  Linux distribution to support this.
2263
2264config PAGE_SIZE_32KB
2265	bool "32kB"
2266	depends on CPU_CAVIUM_OCTEON
2267	depends on !MIPS_VA_BITS_48
2268	help
2269	  Using 32kB page size will result in higher performance kernel at
2270	  the price of higher memory consumption.  This option is available
2271	  only on cnMIPS cores.  Note that you will need a suitable Linux
2272	  distribution to support this.
2273
2274config PAGE_SIZE_64KB
2275	bool "64kB"
2276	depends on !CPU_R3000 && !CPU_TX39XX
2277	help
2278	  Using 64kB page size will result in higher performance kernel at
2279	  the price of higher memory consumption.  This option is available on
2280	  all non-R3000 family processor.  Not that at the time of this
2281	  writing this option is still high experimental.
2282
2283endchoice
2284
2285config FORCE_MAX_ZONEORDER
2286	int "Maximum zone order"
2287	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2288	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2289	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2290	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2291	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2292	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2293	range 11 64
2294	default "11"
2295	help
2296	  The kernel memory allocator divides physically contiguous memory
2297	  blocks into "zones", where each zone is a power of two number of
2298	  pages.  This option selects the largest power of two that the kernel
2299	  keeps in the memory allocator.  If you need to allocate very large
2300	  blocks of physically contiguous memory, then you may need to
2301	  increase this value.
2302
2303	  This config option is actually maximum order plus one. For example,
2304	  a value of 11 means that the largest free memory block is 2^10 pages.
2305
2306	  The page size is not necessarily 4KB.  Keep this in mind
2307	  when choosing a value for this option.
2308
2309config BOARD_SCACHE
2310	bool
2311
2312config IP22_CPU_SCACHE
2313	bool
2314	select BOARD_SCACHE
2315
2316#
2317# Support for a MIPS32 / MIPS64 style S-caches
2318#
2319config MIPS_CPU_SCACHE
2320	bool
2321	select BOARD_SCACHE
2322
2323config R5000_CPU_SCACHE
2324	bool
2325	select BOARD_SCACHE
2326
2327config RM7000_CPU_SCACHE
2328	bool
2329	select BOARD_SCACHE
2330
2331config SIBYTE_DMA_PAGEOPS
2332	bool "Use DMA to clear/copy pages"
2333	depends on CPU_SB1
2334	help
2335	  Instead of using the CPU to zero and copy pages, use a Data Mover
2336	  channel.  These DMA channels are otherwise unused by the standard
2337	  SiByte Linux port.  Seems to give a small performance benefit.
2338
2339config CPU_HAS_PREFETCH
2340	bool
2341
2342config CPU_GENERIC_DUMP_TLB
2343	bool
2344	default y if !(CPU_R3000 || CPU_TX39XX)
2345
2346config MIPS_FP_SUPPORT
2347	bool "Floating Point support" if EXPERT
2348	default y
2349	help
2350	  Select y to include support for floating point in the kernel
2351	  including initialization of FPU hardware, FP context save & restore
2352	  and emulation of an FPU where necessary. Without this support any
2353	  userland program attempting to use floating point instructions will
2354	  receive a SIGILL.
2355
2356	  If you know that your userland will not attempt to use floating point
2357	  instructions then you can say n here to shrink the kernel a little.
2358
2359	  If unsure, say y.
2360
2361config CPU_R2300_FPU
2362	bool
2363	depends on MIPS_FP_SUPPORT
2364	default y if CPU_R3000 || CPU_TX39XX
2365
2366config CPU_R3K_TLB
2367	bool
2368
2369config CPU_R4K_FPU
2370	bool
2371	depends on MIPS_FP_SUPPORT
2372	default y if !CPU_R2300_FPU
2373
2374config CPU_R4K_CACHE_TLB
2375	bool
2376	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2377
2378config MIPS_MT_SMP
2379	bool "MIPS MT SMP support (1 TC on each available VPE)"
2380	default y
2381	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2382	select CPU_MIPSR2_IRQ_VI
2383	select CPU_MIPSR2_IRQ_EI
2384	select SYNC_R4K
2385	select MIPS_MT
2386	select SMP
2387	select SMP_UP
2388	select SYS_SUPPORTS_SMP
2389	select SYS_SUPPORTS_SCHED_SMT
2390	select MIPS_PERF_SHARED_TC_COUNTERS
2391	help
2392	  This is a kernel model which is known as SMVP. This is supported
2393	  on cores with the MT ASE and uses the available VPEs to implement
2394	  virtual processors which supports SMP. This is equivalent to the
2395	  Intel Hyperthreading feature. For further information go to
2396	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2397
2398config MIPS_MT
2399	bool
2400
2401config SCHED_SMT
2402	bool "SMT (multithreading) scheduler support"
2403	depends on SYS_SUPPORTS_SCHED_SMT
2404	default n
2405	help
2406	  SMT scheduler support improves the CPU scheduler's decision making
2407	  when dealing with MIPS MT enabled cores at a cost of slightly
2408	  increased overhead in some places. If unsure say N here.
2409
2410config SYS_SUPPORTS_SCHED_SMT
2411	bool
2412
2413config SYS_SUPPORTS_MULTITHREADING
2414	bool
2415
2416config MIPS_MT_FPAFF
2417	bool "Dynamic FPU affinity for FP-intensive threads"
2418	default y
2419	depends on MIPS_MT_SMP
2420
2421config MIPSR2_TO_R6_EMULATOR
2422	bool "MIPS R2-to-R6 emulator"
2423	depends on CPU_MIPSR6
2424	depends on MIPS_FP_SUPPORT
2425	default y
2426	help
2427	  Choose this option if you want to run non-R6 MIPS userland code.
2428	  Even if you say 'Y' here, the emulator will still be disabled by
2429	  default. You can enable it using the 'mipsr2emu' kernel option.
2430	  The only reason this is a build-time option is to save ~14K from the
2431	  final kernel image.
2432
2433config SYS_SUPPORTS_VPE_LOADER
2434	bool
2435	depends on SYS_SUPPORTS_MULTITHREADING
2436	help
2437	  Indicates that the platform supports the VPE loader, and provides
2438	  physical_memsize.
2439
2440config MIPS_VPE_LOADER
2441	bool "VPE loader support."
2442	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2443	select CPU_MIPSR2_IRQ_VI
2444	select CPU_MIPSR2_IRQ_EI
2445	select MIPS_MT
2446	help
2447	  Includes a loader for loading an elf relocatable object
2448	  onto another VPE and running it.
2449
2450config MIPS_VPE_LOADER_CMP
2451	bool
2452	default "y"
2453	depends on MIPS_VPE_LOADER && MIPS_CMP
2454
2455config MIPS_VPE_LOADER_MT
2456	bool
2457	default "y"
2458	depends on MIPS_VPE_LOADER && !MIPS_CMP
2459
2460config MIPS_VPE_LOADER_TOM
2461	bool "Load VPE program into memory hidden from linux"
2462	depends on MIPS_VPE_LOADER
2463	default y
2464	help
2465	  The loader can use memory that is present but has been hidden from
2466	  Linux using the kernel command line option "mem=xxMB". It's up to
2467	  you to ensure the amount you put in the option and the space your
2468	  program requires is less or equal to the amount physically present.
2469
2470config MIPS_VPE_APSP_API
2471	bool "Enable support for AP/SP API (RTLX)"
2472	depends on MIPS_VPE_LOADER
2473
2474config MIPS_VPE_APSP_API_CMP
2475	bool
2476	default "y"
2477	depends on MIPS_VPE_APSP_API && MIPS_CMP
2478
2479config MIPS_VPE_APSP_API_MT
2480	bool
2481	default "y"
2482	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2483
2484config MIPS_CMP
2485	bool "MIPS CMP framework support (DEPRECATED)"
2486	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2487	select SMP
2488	select SYNC_R4K
2489	select SYS_SUPPORTS_SMP
2490	select WEAK_ORDERING
2491	default n
2492	help
2493	  Select this if you are using a bootloader which implements the "CMP
2494	  framework" protocol (ie. YAMON) and want your kernel to make use of
2495	  its ability to start secondary CPUs.
2496
2497	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2498	  instead of this.
2499
2500config MIPS_CPS
2501	bool "MIPS Coherent Processing System support"
2502	depends on SYS_SUPPORTS_MIPS_CPS
2503	select MIPS_CM
2504	select MIPS_CPS_PM if HOTPLUG_CPU
2505	select SMP
2506	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2507	select SYS_SUPPORTS_HOTPLUG_CPU
2508	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2509	select SYS_SUPPORTS_SMP
2510	select WEAK_ORDERING
2511	help
2512	  Select this if you wish to run an SMP kernel across multiple cores
2513	  within a MIPS Coherent Processing System. When this option is
2514	  enabled the kernel will probe for other cores and boot them with
2515	  no external assistance. It is safe to enable this when hardware
2516	  support is unavailable.
2517
2518config MIPS_CPS_PM
2519	depends on MIPS_CPS
2520	bool
2521
2522config MIPS_CM
2523	bool
2524	select MIPS_CPC
2525
2526config MIPS_CPC
2527	bool
2528
2529config SB1_PASS_2_WORKAROUNDS
2530	bool
2531	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2532	default y
2533
2534config SB1_PASS_2_1_WORKAROUNDS
2535	bool
2536	depends on CPU_SB1 && CPU_SB1_PASS_2
2537	default y
2538
2539choice
2540	prompt "SmartMIPS or microMIPS ASE support"
2541
2542config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2543	bool "None"
2544	help
2545	  Select this if you want neither microMIPS nor SmartMIPS support
2546
2547config CPU_HAS_SMARTMIPS
2548	depends on SYS_SUPPORTS_SMARTMIPS
2549	bool "SmartMIPS"
2550	help
2551	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2552	  increased security at both hardware and software level for
2553	  smartcards.  Enabling this option will allow proper use of the
2554	  SmartMIPS instructions by Linux applications.  However a kernel with
2555	  this option will not work on a MIPS core without SmartMIPS core.  If
2556	  you don't know you probably don't have SmartMIPS and should say N
2557	  here.
2558
2559config CPU_MICROMIPS
2560	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2561	bool "microMIPS"
2562	help
2563	  When this option is enabled the kernel will be built using the
2564	  microMIPS ISA
2565
2566endchoice
2567
2568config CPU_HAS_MSA
2569	bool "Support for the MIPS SIMD Architecture"
2570	depends on CPU_SUPPORTS_MSA
2571	depends on MIPS_FP_SUPPORT
2572	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2573	help
2574	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2575	  and a set of SIMD instructions to operate on them. When this option
2576	  is enabled the kernel will support allocating & switching MSA
2577	  vector register contexts. If you know that your kernel will only be
2578	  running on CPUs which do not support MSA or that your userland will
2579	  not be making use of it then you may wish to say N here to reduce
2580	  the size & complexity of your kernel.
2581
2582	  If unsure, say Y.
2583
2584config CPU_HAS_WB
2585	bool
2586
2587config XKS01
2588	bool
2589
2590config CPU_HAS_DIEI
2591	depends on !CPU_DIEI_BROKEN
2592	bool
2593
2594config CPU_DIEI_BROKEN
2595	bool
2596
2597config CPU_HAS_RIXI
2598	bool
2599
2600config CPU_NO_LOAD_STORE_LR
2601	bool
2602	help
2603	  CPU lacks support for unaligned load and store instructions:
2604	  LWL, LWR, SWL, SWR (Load/store word left/right).
2605	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2606	  systems).
2607
2608#
2609# Vectored interrupt mode is an R2 feature
2610#
2611config CPU_MIPSR2_IRQ_VI
2612	bool
2613
2614#
2615# Extended interrupt mode is an R2 feature
2616#
2617config CPU_MIPSR2_IRQ_EI
2618	bool
2619
2620config CPU_HAS_SYNC
2621	bool
2622	depends on !CPU_R3000
2623	default y
2624
2625#
2626# CPU non-features
2627#
2628config CPU_DADDI_WORKAROUNDS
2629	bool
2630
2631config CPU_R4000_WORKAROUNDS
2632	bool
2633	select CPU_R4400_WORKAROUNDS
2634
2635config CPU_R4400_WORKAROUNDS
2636	bool
2637
2638config CPU_R4X00_BUGS64
2639	bool
2640	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2641
2642config MIPS_ASID_SHIFT
2643	int
2644	default 6 if CPU_R3000 || CPU_TX39XX
2645	default 0
2646
2647config MIPS_ASID_BITS
2648	int
2649	default 0 if MIPS_ASID_BITS_VARIABLE
2650	default 6 if CPU_R3000 || CPU_TX39XX
2651	default 8
2652
2653config MIPS_ASID_BITS_VARIABLE
2654	bool
2655
2656config MIPS_CRC_SUPPORT
2657	bool
2658
2659#
2660# - Highmem only makes sense for the 32-bit kernel.
2661# - The current highmem code will only work properly on physically indexed
2662#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2663#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2664#   moment we protect the user and offer the highmem option only on machines
2665#   where it's known to be safe.  This will not offer highmem on a few systems
2666#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2667#   indexed CPUs but we're playing safe.
2668# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2669#   know they might have memory configurations that could make use of highmem
2670#   support.
2671#
2672config HIGHMEM
2673	bool "High Memory Support"
2674	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2675
2676config CPU_SUPPORTS_HIGHMEM
2677	bool
2678
2679config SYS_SUPPORTS_HIGHMEM
2680	bool
2681
2682config SYS_SUPPORTS_SMARTMIPS
2683	bool
2684
2685config SYS_SUPPORTS_MICROMIPS
2686	bool
2687
2688config SYS_SUPPORTS_MIPS16
2689	bool
2690	help
2691	  This option must be set if a kernel might be executed on a MIPS16-
2692	  enabled CPU even if MIPS16 is not actually being used.  In other
2693	  words, it makes the kernel MIPS16-tolerant.
2694
2695config CPU_SUPPORTS_MSA
2696	bool
2697
2698config ARCH_FLATMEM_ENABLE
2699	def_bool y
2700	depends on !NUMA && !CPU_LOONGSON2EF
2701
2702config ARCH_SPARSEMEM_ENABLE
2703	bool
2704	select SPARSEMEM_STATIC if !SGI_IP27
2705
2706config NUMA
2707	bool "NUMA Support"
2708	depends on SYS_SUPPORTS_NUMA
2709	help
2710	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2711	  Access).  This option improves performance on systems with more
2712	  than two nodes; on two node systems it is generally better to
2713	  leave it disabled; on single node systems leave this option
2714	  disabled.
2715
2716config SYS_SUPPORTS_NUMA
2717	bool
2718
2719config HAVE_SETUP_PER_CPU_AREA
2720	def_bool y
2721	depends on NUMA
2722
2723config NEED_PER_CPU_EMBED_FIRST_CHUNK
2724	def_bool y
2725	depends on NUMA
2726
2727config RELOCATABLE
2728	bool "Relocatable kernel"
2729	depends on SYS_SUPPORTS_RELOCATABLE
2730	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2731		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2732		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2733		   CPU_P5600 || CAVIUM_OCTEON_SOC
2734	help
2735	  This builds a kernel image that retains relocation information
2736	  so it can be loaded someplace besides the default 1MB.
2737	  The relocations make the kernel binary about 15% larger,
2738	  but are discarded at runtime
2739
2740config RELOCATION_TABLE_SIZE
2741	hex "Relocation table size"
2742	depends on RELOCATABLE
2743	range 0x0 0x01000000
2744	default "0x00100000"
2745	help
2746	  A table of relocation data will be appended to the kernel binary
2747	  and parsed at boot to fix up the relocated kernel.
2748
2749	  This option allows the amount of space reserved for the table to be
2750	  adjusted, although the default of 1Mb should be ok in most cases.
2751
2752	  The build will fail and a valid size suggested if this is too small.
2753
2754	  If unsure, leave at the default value.
2755
2756config RANDOMIZE_BASE
2757	bool "Randomize the address of the kernel image"
2758	depends on RELOCATABLE
2759	help
2760	  Randomizes the physical and virtual address at which the
2761	  kernel image is loaded, as a security feature that
2762	  deters exploit attempts relying on knowledge of the location
2763	  of kernel internals.
2764
2765	  Entropy is generated using any coprocessor 0 registers available.
2766
2767	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2768
2769	  If unsure, say N.
2770
2771config RANDOMIZE_BASE_MAX_OFFSET
2772	hex "Maximum kASLR offset" if EXPERT
2773	depends on RANDOMIZE_BASE
2774	range 0x0 0x40000000 if EVA || 64BIT
2775	range 0x0 0x08000000
2776	default "0x01000000"
2777	help
2778	  When kASLR is active, this provides the maximum offset that will
2779	  be applied to the kernel image. It should be set according to the
2780	  amount of physical RAM available in the target system minus
2781	  PHYSICAL_START and must be a power of 2.
2782
2783	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2784	  EVA or 64-bit. The default is 16Mb.
2785
2786config NODES_SHIFT
2787	int
2788	default "6"
2789	depends on NEED_MULTIPLE_NODES
2790
2791config HW_PERF_EVENTS
2792	bool "Enable hardware performance counter support for perf events"
2793	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2794	default y
2795	help
2796	  Enable hardware performance counter support for perf events. If
2797	  disabled, perf events will use software events only.
2798
2799config DMI
2800	bool "Enable DMI scanning"
2801	depends on MACH_LOONGSON64
2802	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2803	default y
2804	help
2805	  Enabled scanning of DMI to identify machine quirks. Say Y
2806	  here unless you have verified that your setup is not
2807	  affected by entries in the DMI blacklist. Required by PNP
2808	  BIOS code.
2809
2810config SMP
2811	bool "Multi-Processing support"
2812	depends on SYS_SUPPORTS_SMP
2813	help
2814	  This enables support for systems with more than one CPU. If you have
2815	  a system with only one CPU, say N. If you have a system with more
2816	  than one CPU, say Y.
2817
2818	  If you say N here, the kernel will run on uni- and multiprocessor
2819	  machines, but will use only one CPU of a multiprocessor machine. If
2820	  you say Y here, the kernel will run on many, but not all,
2821	  uniprocessor machines. On a uniprocessor machine, the kernel
2822	  will run faster if you say N here.
2823
2824	  People using multiprocessor machines who say Y here should also say
2825	  Y to "Enhanced Real Time Clock Support", below.
2826
2827	  See also the SMP-HOWTO available at
2828	  <http://www.tldp.org/docs.html#howto>.
2829
2830	  If you don't know what to do here, say N.
2831
2832config HOTPLUG_CPU
2833	bool "Support for hot-pluggable CPUs"
2834	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2835	help
2836	  Say Y here to allow turning CPUs off and on. CPUs can be
2837	  controlled through /sys/devices/system/cpu.
2838	  (Note: power management support will enable this option
2839	    automatically on SMP systems. )
2840	  Say N if you want to disable CPU hotplug.
2841
2842config SMP_UP
2843	bool
2844
2845config SYS_SUPPORTS_MIPS_CMP
2846	bool
2847
2848config SYS_SUPPORTS_MIPS_CPS
2849	bool
2850
2851config SYS_SUPPORTS_SMP
2852	bool
2853
2854config NR_CPUS_DEFAULT_4
2855	bool
2856
2857config NR_CPUS_DEFAULT_8
2858	bool
2859
2860config NR_CPUS_DEFAULT_16
2861	bool
2862
2863config NR_CPUS_DEFAULT_32
2864	bool
2865
2866config NR_CPUS_DEFAULT_64
2867	bool
2868
2869config NR_CPUS
2870	int "Maximum number of CPUs (2-256)"
2871	range 2 256
2872	depends on SMP
2873	default "4" if NR_CPUS_DEFAULT_4
2874	default "8" if NR_CPUS_DEFAULT_8
2875	default "16" if NR_CPUS_DEFAULT_16
2876	default "32" if NR_CPUS_DEFAULT_32
2877	default "64" if NR_CPUS_DEFAULT_64
2878	help
2879	  This allows you to specify the maximum number of CPUs which this
2880	  kernel will support.  The maximum supported value is 32 for 32-bit
2881	  kernel and 64 for 64-bit kernels; the minimum value which makes
2882	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2883	  and 2 for all others.
2884
2885	  This is purely to save memory - each supported CPU adds
2886	  approximately eight kilobytes to the kernel image.  For best
2887	  performance should round up your number of processors to the next
2888	  power of two.
2889
2890config MIPS_PERF_SHARED_TC_COUNTERS
2891	bool
2892
2893config MIPS_NR_CPU_NR_MAP_1024
2894	bool
2895
2896config MIPS_NR_CPU_NR_MAP
2897	int
2898	depends on SMP
2899	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2900	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2901
2902#
2903# Timer Interrupt Frequency Configuration
2904#
2905
2906choice
2907	prompt "Timer frequency"
2908	default HZ_250
2909	help
2910	  Allows the configuration of the timer frequency.
2911
2912	config HZ_24
2913		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2914
2915	config HZ_48
2916		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2917
2918	config HZ_100
2919		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2920
2921	config HZ_128
2922		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2923
2924	config HZ_250
2925		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2926
2927	config HZ_256
2928		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2929
2930	config HZ_1000
2931		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2932
2933	config HZ_1024
2934		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2935
2936endchoice
2937
2938config SYS_SUPPORTS_24HZ
2939	bool
2940
2941config SYS_SUPPORTS_48HZ
2942	bool
2943
2944config SYS_SUPPORTS_100HZ
2945	bool
2946
2947config SYS_SUPPORTS_128HZ
2948	bool
2949
2950config SYS_SUPPORTS_250HZ
2951	bool
2952
2953config SYS_SUPPORTS_256HZ
2954	bool
2955
2956config SYS_SUPPORTS_1000HZ
2957	bool
2958
2959config SYS_SUPPORTS_1024HZ
2960	bool
2961
2962config SYS_SUPPORTS_ARBIT_HZ
2963	bool
2964	default y if !SYS_SUPPORTS_24HZ && \
2965		     !SYS_SUPPORTS_48HZ && \
2966		     !SYS_SUPPORTS_100HZ && \
2967		     !SYS_SUPPORTS_128HZ && \
2968		     !SYS_SUPPORTS_250HZ && \
2969		     !SYS_SUPPORTS_256HZ && \
2970		     !SYS_SUPPORTS_1000HZ && \
2971		     !SYS_SUPPORTS_1024HZ
2972
2973config HZ
2974	int
2975	default 24 if HZ_24
2976	default 48 if HZ_48
2977	default 100 if HZ_100
2978	default 128 if HZ_128
2979	default 250 if HZ_250
2980	default 256 if HZ_256
2981	default 1000 if HZ_1000
2982	default 1024 if HZ_1024
2983
2984config SCHED_HRTICK
2985	def_bool HIGH_RES_TIMERS
2986
2987config KEXEC
2988	bool "Kexec system call"
2989	select KEXEC_CORE
2990	help
2991	  kexec is a system call that implements the ability to shutdown your
2992	  current kernel, and to start another kernel.  It is like a reboot
2993	  but it is independent of the system firmware.   And like a reboot
2994	  you can start any kernel with it, not just Linux.
2995
2996	  The name comes from the similarity to the exec system call.
2997
2998	  It is an ongoing process to be certain the hardware in a machine
2999	  is properly shutdown, so do not be surprised if this code does not
3000	  initially work for you.  As of this writing the exact hardware
3001	  interface is strongly in flux, so no good recommendation can be
3002	  made.
3003
3004config CRASH_DUMP
3005	bool "Kernel crash dumps"
3006	help
3007	  Generate crash dump after being started by kexec.
3008	  This should be normally only set in special crash dump kernels
3009	  which are loaded in the main kernel with kexec-tools into
3010	  a specially reserved region and then later executed after
3011	  a crash by kdump/kexec. The crash dump kernel must be compiled
3012	  to a memory address not used by the main kernel or firmware using
3013	  PHYSICAL_START.
3014
3015config PHYSICAL_START
3016	hex "Physical address where the kernel is loaded"
3017	default "0xffffffff84000000"
3018	depends on CRASH_DUMP
3019	help
3020	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3021	  If you plan to use kernel for capturing the crash dump change
3022	  this value to start of the reserved region (the "X" value as
3023	  specified in the "crashkernel=YM@XM" command line boot parameter
3024	  passed to the panic-ed kernel).
3025
3026config SECCOMP
3027	bool "Enable seccomp to safely compute untrusted bytecode"
3028	depends on PROC_FS
3029	default y
3030	help
3031	  This kernel feature is useful for number crunching applications
3032	  that may need to compute untrusted bytecode during their
3033	  execution. By using pipes or other transports made available to
3034	  the process as file descriptors supporting the read/write
3035	  syscalls, it's possible to isolate those applications in
3036	  their own address space using seccomp. Once seccomp is
3037	  enabled via /proc/<pid>/seccomp, it cannot be disabled
3038	  and the task is only allowed to execute a few safe syscalls
3039	  defined by each seccomp mode.
3040
3041	  If unsure, say Y. Only embedded should say N here.
3042
3043config MIPS_O32_FP64_SUPPORT
3044	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3045	depends on 32BIT || MIPS32_O32
3046	help
3047	  When this is enabled, the kernel will support use of 64-bit floating
3048	  point registers with binaries using the O32 ABI along with the
3049	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3050	  32-bit MIPS systems this support is at the cost of increasing the
3051	  size and complexity of the compiled FPU emulator. Thus if you are
3052	  running a MIPS32 system and know that none of your userland binaries
3053	  will require 64-bit floating point, you may wish to reduce the size
3054	  of your kernel & potentially improve FP emulation performance by
3055	  saying N here.
3056
3057	  Although binutils currently supports use of this flag the details
3058	  concerning its effect upon the O32 ABI in userland are still being
3059	  worked on. In order to avoid userland becoming dependant upon current
3060	  behaviour before the details have been finalised, this option should
3061	  be considered experimental and only enabled by those working upon
3062	  said details.
3063
3064	  If unsure, say N.
3065
3066config USE_OF
3067	bool
3068	select OF
3069	select OF_EARLY_FLATTREE
3070	select IRQ_DOMAIN
3071
3072config UHI_BOOT
3073	bool
3074
3075config BUILTIN_DTB
3076	bool
3077
3078choice
3079	prompt "Kernel appended dtb support" if USE_OF
3080	default MIPS_NO_APPENDED_DTB
3081
3082	config MIPS_NO_APPENDED_DTB
3083		bool "None"
3084		help
3085		  Do not enable appended dtb support.
3086
3087	config MIPS_ELF_APPENDED_DTB
3088		bool "vmlinux"
3089		help
3090		  With this option, the boot code will look for a device tree binary
3091		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3092		  it is empty and the DTB can be appended using binutils command
3093		  objcopy:
3094
3095		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3096
3097		  This is meant as a backward compatiblity convenience for those
3098		  systems with a bootloader that can't be upgraded to accommodate
3099		  the documented boot protocol using a device tree.
3100
3101	config MIPS_RAW_APPENDED_DTB
3102		bool "vmlinux.bin or vmlinuz.bin"
3103		help
3104		  With this option, the boot code will look for a device tree binary
3105		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3106		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3107
3108		  This is meant as a backward compatibility convenience for those
3109		  systems with a bootloader that can't be upgraded to accommodate
3110		  the documented boot protocol using a device tree.
3111
3112		  Beware that there is very little in terms of protection against
3113		  this option being confused by leftover garbage in memory that might
3114		  look like a DTB header after a reboot if no actual DTB is appended
3115		  to vmlinux.bin.  Do not leave this option active in a production kernel
3116		  if you don't intend to always append a DTB.
3117endchoice
3118
3119choice
3120	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3121	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3122					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3123					 !CAVIUM_OCTEON_SOC
3124	default MIPS_CMDLINE_FROM_BOOTLOADER
3125
3126	config MIPS_CMDLINE_FROM_DTB
3127		depends on USE_OF
3128		bool "Dtb kernel arguments if available"
3129
3130	config MIPS_CMDLINE_DTB_EXTEND
3131		depends on USE_OF
3132		bool "Extend dtb kernel arguments with bootloader arguments"
3133
3134	config MIPS_CMDLINE_FROM_BOOTLOADER
3135		bool "Bootloader kernel arguments if available"
3136
3137	config MIPS_CMDLINE_BUILTIN_EXTEND
3138		depends on CMDLINE_BOOL
3139		bool "Extend builtin kernel arguments with bootloader arguments"
3140endchoice
3141
3142endmenu
3143
3144config LOCKDEP_SUPPORT
3145	bool
3146	default y
3147
3148config STACKTRACE_SUPPORT
3149	bool
3150	default y
3151
3152config PGTABLE_LEVELS
3153	int
3154	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3155	default 3 if 64BIT && !PAGE_SIZE_64KB
3156	default 2
3157
3158config MIPS_AUTO_PFN_OFFSET
3159	bool
3160
3161menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3162
3163config PCI_DRIVERS_GENERIC
3164	select PCI_DOMAINS_GENERIC if PCI
3165	bool
3166
3167config PCI_DRIVERS_LEGACY
3168	def_bool !PCI_DRIVERS_GENERIC
3169	select NO_GENERIC_PCI_IOPORT_MAP
3170	select PCI_DOMAINS if PCI
3171
3172#
3173# ISA support is now enabled via select.  Too many systems still have the one
3174# or other ISA chip on the board that users don't know about so don't expect
3175# users to choose the right thing ...
3176#
3177config ISA
3178	bool
3179
3180config TC
3181	bool "TURBOchannel support"
3182	depends on MACH_DECSTATION
3183	help
3184	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3185	  processors.  TURBOchannel programming specifications are available
3186	  at:
3187	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3188	  and:
3189	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3190	  Linux driver support status is documented at:
3191	  <http://www.linux-mips.org/wiki/DECstation>
3192
3193config MMU
3194	bool
3195	default y
3196
3197config ARCH_MMAP_RND_BITS_MIN
3198	default 12 if 64BIT
3199	default 8
3200
3201config ARCH_MMAP_RND_BITS_MAX
3202	default 18 if 64BIT
3203	default 15
3204
3205config ARCH_MMAP_RND_COMPAT_BITS_MIN
3206	default 8
3207
3208config ARCH_MMAP_RND_COMPAT_BITS_MAX
3209	default 15
3210
3211config I8253
3212	bool
3213	select CLKSRC_I8253
3214	select CLKEVT_I8253
3215	select MIPS_EXTERNAL_TIMER
3216
3217config ZONE_DMA
3218	bool
3219
3220config ZONE_DMA32
3221	bool
3222
3223endmenu
3224
3225config TRAD_SIGNALS
3226	bool
3227
3228config MIPS32_COMPAT
3229	bool
3230
3231config COMPAT
3232	bool
3233
3234config SYSVIPC_COMPAT
3235	bool
3236
3237config MIPS32_O32
3238	bool "Kernel support for o32 binaries"
3239	depends on 64BIT
3240	select ARCH_WANT_OLD_COMPAT_IPC
3241	select COMPAT
3242	select MIPS32_COMPAT
3243	select SYSVIPC_COMPAT if SYSVIPC
3244	help
3245	  Select this option if you want to run o32 binaries.  These are pure
3246	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3247	  existing binaries are in this format.
3248
3249	  If unsure, say Y.
3250
3251config MIPS32_N32
3252	bool "Kernel support for n32 binaries"
3253	depends on 64BIT
3254	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3255	select COMPAT
3256	select MIPS32_COMPAT
3257	select SYSVIPC_COMPAT if SYSVIPC
3258	help
3259	  Select this option if you want to run n32 binaries.  These are
3260	  64-bit binaries using 32-bit quantities for addressing and certain
3261	  data that would normally be 64-bit.  They are used in special
3262	  cases.
3263
3264	  If unsure, say N.
3265
3266config BINFMT_ELF32
3267	bool
3268	default y if MIPS32_O32 || MIPS32_N32
3269	select ELFCORE
3270
3271menu "Power management options"
3272
3273config ARCH_HIBERNATION_POSSIBLE
3274	def_bool y
3275	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3276
3277config ARCH_SUSPEND_POSSIBLE
3278	def_bool y
3279	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3280
3281source "kernel/power/Kconfig"
3282
3283endmenu
3284
3285config MIPS_EXTERNAL_TIMER
3286	bool
3287
3288menu "CPU Power Management"
3289
3290if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3291source "drivers/cpufreq/Kconfig"
3292endif
3293
3294source "drivers/cpuidle/Kconfig"
3295
3296endmenu
3297
3298source "drivers/firmware/Kconfig"
3299
3300source "arch/mips/kvm/Kconfig"
3301
3302source "arch/mips/vdso/Kconfig"
3303