xref: /openbmc/linux/arch/mips/Kconfig (revision c4a11bf4)
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_DEBUG_VIRTUAL if !64BIT
8	select ARCH_HAS_FORTIFY_SOURCE
9	select ARCH_HAS_KCOV
10	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
11	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
12	select ARCH_HAS_STRNCPY_FROM_USER
13	select ARCH_HAS_STRNLEN_USER
14	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
15	select ARCH_HAS_UBSAN_SANITIZE_ALL
16	select ARCH_HAS_GCOV_PROFILE_ALL
17	select ARCH_KEEP_MEMBLOCK
18	select ARCH_SUPPORTS_UPROBES
19	select ARCH_USE_BUILTIN_BSWAP
20	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
21	select ARCH_USE_MEMTEST
22	select ARCH_USE_QUEUED_RWLOCKS
23	select ARCH_USE_QUEUED_SPINLOCKS
24	select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
25	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
26	select ARCH_WANT_IPC_PARSE_VERSION
27	select ARCH_WANT_LD_ORPHAN_WARN
28	select BUILDTIME_TABLE_SORT
29	select CLONE_BACKWARDS
30	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
31	select CPU_PM if CPU_IDLE
32	select GENERIC_ATOMIC64 if !64BIT
33	select GENERIC_CMOS_UPDATE
34	select GENERIC_CPU_AUTOPROBE
35	select GENERIC_FIND_FIRST_BIT
36	select GENERIC_GETTIMEOFDAY
37	select GENERIC_IOMAP
38	select GENERIC_IRQ_PROBE
39	select GENERIC_IRQ_SHOW
40	select GENERIC_ISA_DMA if EISA
41	select GENERIC_LIB_ASHLDI3
42	select GENERIC_LIB_ASHRDI3
43	select GENERIC_LIB_CMPDI2
44	select GENERIC_LIB_LSHRDI3
45	select GENERIC_LIB_UCMPDI2
46	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
47	select GENERIC_SMP_IDLE_THREAD
48	select GENERIC_TIME_VSYSCALL
49	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
50	select HAVE_ARCH_COMPILER_H
51	select HAVE_ARCH_JUMP_LABEL
52	select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
53	select HAVE_ARCH_MMAP_RND_BITS if MMU
54	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
55	select HAVE_ARCH_SECCOMP_FILTER
56	select HAVE_ARCH_TRACEHOOK
57	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
58	select HAVE_ASM_MODVERSIONS
59	select HAVE_CONTEXT_TRACKING
60	select HAVE_TIF_NOHZ
61	select HAVE_C_RECORDMCOUNT
62	select HAVE_DEBUG_KMEMLEAK
63	select HAVE_DEBUG_STACKOVERFLOW
64	select HAVE_DMA_CONTIGUOUS
65	select HAVE_DYNAMIC_FTRACE
66	select HAVE_EBPF_JIT if !CPU_MICROMIPS && \
67				!CPU_DADDI_WORKAROUNDS && \
68				!CPU_R4000_WORKAROUNDS && \
69				!CPU_R4400_WORKAROUNDS
70	select HAVE_EXIT_THREAD
71	select HAVE_FAST_GUP
72	select HAVE_FTRACE_MCOUNT_RECORD
73	select HAVE_FUNCTION_GRAPH_TRACER
74	select HAVE_FUNCTION_TRACER
75	select HAVE_GCC_PLUGINS
76	select HAVE_GENERIC_VDSO
77	select HAVE_IOREMAP_PROT
78	select HAVE_IRQ_EXIT_ON_IRQ_STACK
79	select HAVE_IRQ_TIME_ACCOUNTING
80	select HAVE_KPROBES
81	select HAVE_KRETPROBES
82	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
83	select HAVE_MOD_ARCH_SPECIFIC
84	select HAVE_NMI
85	select HAVE_PERF_EVENTS
86	select HAVE_PERF_REGS
87	select HAVE_PERF_USER_STACK_DUMP
88	select HAVE_REGS_AND_STACK_ACCESS_API
89	select HAVE_RSEQ
90	select HAVE_SPARSE_SYSCALL_NR
91	select HAVE_STACKPROTECTOR
92	select HAVE_SYSCALL_TRACEPOINTS
93	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
94	select IRQ_FORCED_THREADING
95	select ISA if EISA
96	select MODULES_USE_ELF_REL if MODULES
97	select MODULES_USE_ELF_RELA if MODULES && 64BIT
98	select PERF_USE_VMALLOC
99	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
100	select RTC_LIB
101	select SYSCTL_EXCEPTION_TRACE
102	select TRACE_IRQFLAGS_SUPPORT
103	select VIRT_TO_BUS
104	select ARCH_HAS_ELFCORE_COMPAT
105
106config MIPS_FIXUP_BIGPHYS_ADDR
107	bool
108
109config MIPS_GENERIC
110	bool
111
112config MACH_INGENIC
113	bool
114	select SYS_SUPPORTS_32BIT_KERNEL
115	select SYS_SUPPORTS_LITTLE_ENDIAN
116	select SYS_SUPPORTS_ZBOOT
117	select DMA_NONCOHERENT
118	select ARCH_HAS_SYNC_DMA_FOR_CPU
119	select IRQ_MIPS_CPU
120	select PINCTRL
121	select GPIOLIB
122	select COMMON_CLK
123	select GENERIC_IRQ_CHIP
124	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
125	select USE_OF
126	select CPU_SUPPORTS_CPUFREQ
127	select MIPS_EXTERNAL_TIMER
128
129menu "Machine selection"
130
131choice
132	prompt "System type"
133	default MIPS_GENERIC_KERNEL
134
135config MIPS_GENERIC_KERNEL
136	bool "Generic board-agnostic MIPS kernel"
137	select ARCH_HAS_SETUP_DMA_OPS
138	select MIPS_GENERIC
139	select BOOT_RAW
140	select BUILTIN_DTB
141	select CEVT_R4K
142	select CLKSRC_MIPS_GIC
143	select COMMON_CLK
144	select CPU_MIPSR2_IRQ_EI
145	select CPU_MIPSR2_IRQ_VI
146	select CSRC_R4K
147	select DMA_NONCOHERENT
148	select HAVE_PCI
149	select IRQ_MIPS_CPU
150	select MIPS_AUTO_PFN_OFFSET
151	select MIPS_CPU_SCACHE
152	select MIPS_GIC
153	select MIPS_L1_CACHE_SHIFT_7
154	select NO_EXCEPT_FILL
155	select PCI_DRIVERS_GENERIC
156	select SMP_UP if SMP
157	select SWAP_IO_SPACE
158	select SYS_HAS_CPU_MIPS32_R1
159	select SYS_HAS_CPU_MIPS32_R2
160	select SYS_HAS_CPU_MIPS32_R6
161	select SYS_HAS_CPU_MIPS64_R1
162	select SYS_HAS_CPU_MIPS64_R2
163	select SYS_HAS_CPU_MIPS64_R6
164	select SYS_SUPPORTS_32BIT_KERNEL
165	select SYS_SUPPORTS_64BIT_KERNEL
166	select SYS_SUPPORTS_BIG_ENDIAN
167	select SYS_SUPPORTS_HIGHMEM
168	select SYS_SUPPORTS_LITTLE_ENDIAN
169	select SYS_SUPPORTS_MICROMIPS
170	select SYS_SUPPORTS_MIPS16
171	select SYS_SUPPORTS_MIPS_CPS
172	select SYS_SUPPORTS_MULTITHREADING
173	select SYS_SUPPORTS_RELOCATABLE
174	select SYS_SUPPORTS_SMARTMIPS
175	select SYS_SUPPORTS_ZBOOT
176	select UHI_BOOT
177	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
178	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
179	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
180	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
181	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
182	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
183	select USE_OF
184	help
185	  Select this to build a kernel which aims to support multiple boards,
186	  generally using a flattened device tree passed from the bootloader
187	  using the boot protocol defined in the UHI (Unified Hosting
188	  Interface) specification.
189
190config MIPS_ALCHEMY
191	bool "Alchemy processor based machines"
192	select PHYS_ADDR_T_64BIT
193	select CEVT_R4K
194	select CSRC_R4K
195	select IRQ_MIPS_CPU
196	select DMA_NONCOHERENT		# Au1000,1500,1100 aren't, rest is
197	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
198	select SYS_HAS_CPU_MIPS32_R1
199	select SYS_SUPPORTS_32BIT_KERNEL
200	select SYS_SUPPORTS_APM_EMULATION
201	select GPIOLIB
202	select SYS_SUPPORTS_ZBOOT
203	select COMMON_CLK
204
205config AR7
206	bool "Texas Instruments AR7"
207	select BOOT_ELF32
208	select COMMON_CLK
209	select DMA_NONCOHERENT
210	select CEVT_R4K
211	select CSRC_R4K
212	select IRQ_MIPS_CPU
213	select NO_EXCEPT_FILL
214	select SWAP_IO_SPACE
215	select SYS_HAS_CPU_MIPS32_R1
216	select SYS_HAS_EARLY_PRINTK
217	select SYS_SUPPORTS_32BIT_KERNEL
218	select SYS_SUPPORTS_LITTLE_ENDIAN
219	select SYS_SUPPORTS_MIPS16
220	select SYS_SUPPORTS_ZBOOT_UART16550
221	select GPIOLIB
222	select VLYNQ
223	help
224	  Support for the Texas Instruments AR7 System-on-a-Chip
225	  family: TNETD7100, 7200 and 7300.
226
227config ATH25
228	bool "Atheros AR231x/AR531x SoC support"
229	select CEVT_R4K
230	select CSRC_R4K
231	select DMA_NONCOHERENT
232	select IRQ_MIPS_CPU
233	select IRQ_DOMAIN
234	select SYS_HAS_CPU_MIPS32_R1
235	select SYS_SUPPORTS_BIG_ENDIAN
236	select SYS_SUPPORTS_32BIT_KERNEL
237	select SYS_HAS_EARLY_PRINTK
238	help
239	  Support for Atheros AR231x and Atheros AR531x based boards
240
241config ATH79
242	bool "Atheros AR71XX/AR724X/AR913X based boards"
243	select ARCH_HAS_RESET_CONTROLLER
244	select BOOT_RAW
245	select CEVT_R4K
246	select CSRC_R4K
247	select DMA_NONCOHERENT
248	select GPIOLIB
249	select PINCTRL
250	select COMMON_CLK
251	select IRQ_MIPS_CPU
252	select SYS_HAS_CPU_MIPS32_R2
253	select SYS_HAS_EARLY_PRINTK
254	select SYS_SUPPORTS_32BIT_KERNEL
255	select SYS_SUPPORTS_BIG_ENDIAN
256	select SYS_SUPPORTS_MIPS16
257	select SYS_SUPPORTS_ZBOOT_UART_PROM
258	select USE_OF
259	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
260	help
261	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
262
263config BMIPS_GENERIC
264	bool "Broadcom Generic BMIPS kernel"
265	select ARCH_HAS_RESET_CONTROLLER
266	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
267	select ARCH_HAS_PHYS_TO_DMA
268	select BOOT_RAW
269	select NO_EXCEPT_FILL
270	select USE_OF
271	select CEVT_R4K
272	select CSRC_R4K
273	select SYNC_R4K
274	select COMMON_CLK
275	select BCM6345_L1_IRQ
276	select BCM7038_L1_IRQ
277	select BCM7120_L2_IRQ
278	select BRCMSTB_L2_IRQ
279	select IRQ_MIPS_CPU
280	select DMA_NONCOHERENT
281	select SYS_SUPPORTS_32BIT_KERNEL
282	select SYS_SUPPORTS_LITTLE_ENDIAN
283	select SYS_SUPPORTS_BIG_ENDIAN
284	select SYS_SUPPORTS_HIGHMEM
285	select SYS_HAS_CPU_BMIPS32_3300
286	select SYS_HAS_CPU_BMIPS4350
287	select SYS_HAS_CPU_BMIPS4380
288	select SYS_HAS_CPU_BMIPS5000
289	select SWAP_IO_SPACE
290	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
291	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
292	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
293	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
294	select HARDIRQS_SW_RESEND
295	help
296	  Build a generic DT-based kernel image that boots on select
297	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
298	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
299	  must be set appropriately for your board.
300
301config BCM47XX
302	bool "Broadcom BCM47XX based boards"
303	select BOOT_RAW
304	select CEVT_R4K
305	select CSRC_R4K
306	select DMA_NONCOHERENT
307	select HAVE_PCI
308	select IRQ_MIPS_CPU
309	select SYS_HAS_CPU_MIPS32_R1
310	select NO_EXCEPT_FILL
311	select SYS_SUPPORTS_32BIT_KERNEL
312	select SYS_SUPPORTS_LITTLE_ENDIAN
313	select SYS_SUPPORTS_MIPS16
314	select SYS_SUPPORTS_ZBOOT
315	select SYS_HAS_EARLY_PRINTK
316	select USE_GENERIC_EARLY_PRINTK_8250
317	select GPIOLIB
318	select LEDS_GPIO_REGISTER
319	select BCM47XX_NVRAM
320	select BCM47XX_SPROM
321	select BCM47XX_SSB if !BCM47XX_BCMA
322	help
323	  Support for BCM47XX based boards
324
325config BCM63XX
326	bool "Broadcom BCM63XX based boards"
327	select BOOT_RAW
328	select CEVT_R4K
329	select CSRC_R4K
330	select SYNC_R4K
331	select DMA_NONCOHERENT
332	select IRQ_MIPS_CPU
333	select SYS_SUPPORTS_32BIT_KERNEL
334	select SYS_SUPPORTS_BIG_ENDIAN
335	select SYS_HAS_EARLY_PRINTK
336	select SWAP_IO_SPACE
337	select GPIOLIB
338	select MIPS_L1_CACHE_SHIFT_4
339	select HAVE_LEGACY_CLK
340	help
341	  Support for BCM63XX based boards
342
343config MIPS_COBALT
344	bool "Cobalt Server"
345	select CEVT_R4K
346	select CSRC_R4K
347	select CEVT_GT641XX
348	select DMA_NONCOHERENT
349	select FORCE_PCI
350	select I8253
351	select I8259
352	select IRQ_MIPS_CPU
353	select IRQ_GT641XX
354	select PCI_GT64XXX_PCI0
355	select SYS_HAS_CPU_NEVADA
356	select SYS_HAS_EARLY_PRINTK
357	select SYS_SUPPORTS_32BIT_KERNEL
358	select SYS_SUPPORTS_64BIT_KERNEL
359	select SYS_SUPPORTS_LITTLE_ENDIAN
360	select USE_GENERIC_EARLY_PRINTK_8250
361
362config MACH_DECSTATION
363	bool "DECstations"
364	select BOOT_ELF32
365	select CEVT_DS1287
366	select CEVT_R4K if CPU_R4X00
367	select CSRC_IOASIC
368	select CSRC_R4K if CPU_R4X00
369	select CPU_DADDI_WORKAROUNDS if 64BIT
370	select CPU_R4000_WORKAROUNDS if 64BIT
371	select CPU_R4400_WORKAROUNDS if 64BIT
372	select DMA_NONCOHERENT
373	select NO_IOPORT_MAP
374	select IRQ_MIPS_CPU
375	select SYS_HAS_CPU_R3000
376	select SYS_HAS_CPU_R4X00
377	select SYS_SUPPORTS_32BIT_KERNEL
378	select SYS_SUPPORTS_64BIT_KERNEL
379	select SYS_SUPPORTS_LITTLE_ENDIAN
380	select SYS_SUPPORTS_128HZ
381	select SYS_SUPPORTS_256HZ
382	select SYS_SUPPORTS_1024HZ
383	select MIPS_L1_CACHE_SHIFT_4
384	help
385	  This enables support for DEC's MIPS based workstations.  For details
386	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
387	  DECstation porting pages on <http://decstation.unix-ag.org/>.
388
389	  If you have one of the following DECstation Models you definitely
390	  want to choose R4xx0 for the CPU Type:
391
392		DECstation 5000/50
393		DECstation 5000/150
394		DECstation 5000/260
395		DECsystem 5900/260
396
397	  otherwise choose R3000.
398
399config MACH_JAZZ
400	bool "Jazz family of machines"
401	select ARC_MEMORY
402	select ARC_PROMLIB
403	select ARCH_MIGHT_HAVE_PC_PARPORT
404	select ARCH_MIGHT_HAVE_PC_SERIO
405	select DMA_OPS
406	select FW_ARC
407	select FW_ARC32
408	select ARCH_MAY_HAVE_PC_FDC
409	select CEVT_R4K
410	select CSRC_R4K
411	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
412	select GENERIC_ISA_DMA
413	select HAVE_PCSPKR_PLATFORM
414	select IRQ_MIPS_CPU
415	select I8253
416	select I8259
417	select ISA
418	select SYS_HAS_CPU_R4X00
419	select SYS_SUPPORTS_32BIT_KERNEL
420	select SYS_SUPPORTS_64BIT_KERNEL
421	select SYS_SUPPORTS_100HZ
422	select SYS_SUPPORTS_LITTLE_ENDIAN
423	help
424	  This a family of machines based on the MIPS R4030 chipset which was
425	  used by several vendors to build RISC/os and Windows NT workstations.
426	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
427	  Olivetti M700-10 workstations.
428
429config MACH_INGENIC_SOC
430	bool "Ingenic SoC based machines"
431	select MIPS_GENERIC
432	select MACH_INGENIC
433	select SYS_SUPPORTS_ZBOOT_UART16550
434	select CPU_SUPPORTS_CPUFREQ
435	select MIPS_EXTERNAL_TIMER
436
437config LANTIQ
438	bool "Lantiq based platforms"
439	select DMA_NONCOHERENT
440	select IRQ_MIPS_CPU
441	select CEVT_R4K
442	select CSRC_R4K
443	select SYS_HAS_CPU_MIPS32_R1
444	select SYS_HAS_CPU_MIPS32_R2
445	select SYS_SUPPORTS_BIG_ENDIAN
446	select SYS_SUPPORTS_32BIT_KERNEL
447	select SYS_SUPPORTS_MIPS16
448	select SYS_SUPPORTS_MULTITHREADING
449	select SYS_SUPPORTS_VPE_LOADER
450	select SYS_HAS_EARLY_PRINTK
451	select GPIOLIB
452	select SWAP_IO_SPACE
453	select BOOT_RAW
454	select HAVE_LEGACY_CLK
455	select USE_OF
456	select PINCTRL
457	select PINCTRL_LANTIQ
458	select ARCH_HAS_RESET_CONTROLLER
459	select RESET_CONTROLLER
460
461config MACH_LOONGSON32
462	bool "Loongson 32-bit family of machines"
463	select SYS_SUPPORTS_ZBOOT
464	help
465	  This enables support for the Loongson-1 family of machines.
466
467	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
468	  the Institute of Computing Technology (ICT), Chinese Academy of
469	  Sciences (CAS).
470
471config MACH_LOONGSON2EF
472	bool "Loongson-2E/F family of machines"
473	select SYS_SUPPORTS_ZBOOT
474	help
475	  This enables the support of early Loongson-2E/F family of machines.
476
477config MACH_LOONGSON64
478	bool "Loongson 64-bit family of machines"
479	select ARCH_SPARSEMEM_ENABLE
480	select ARCH_MIGHT_HAVE_PC_PARPORT
481	select ARCH_MIGHT_HAVE_PC_SERIO
482	select GENERIC_ISA_DMA_SUPPORT_BROKEN
483	select BOOT_ELF32
484	select BOARD_SCACHE
485	select CSRC_R4K
486	select CEVT_R4K
487	select CPU_HAS_WB
488	select FORCE_PCI
489	select ISA
490	select I8259
491	select IRQ_MIPS_CPU
492	select NO_EXCEPT_FILL
493	select NR_CPUS_DEFAULT_64
494	select USE_GENERIC_EARLY_PRINTK_8250
495	select PCI_DRIVERS_GENERIC
496	select SYS_HAS_CPU_LOONGSON64
497	select SYS_HAS_EARLY_PRINTK
498	select SYS_SUPPORTS_SMP
499	select SYS_SUPPORTS_HOTPLUG_CPU
500	select SYS_SUPPORTS_NUMA
501	select SYS_SUPPORTS_64BIT_KERNEL
502	select SYS_SUPPORTS_HIGHMEM
503	select SYS_SUPPORTS_LITTLE_ENDIAN
504	select SYS_SUPPORTS_ZBOOT
505	select SYS_SUPPORTS_RELOCATABLE
506	select ZONE_DMA32
507	select COMMON_CLK
508	select USE_OF
509	select BUILTIN_DTB
510	select PCI_HOST_GENERIC
511	help
512	  This enables the support of Loongson-2/3 family of machines.
513
514	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
515	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
516	  and Loongson-2F which will be removed), developed by the Institute
517	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
518
519config MIPS_MALTA
520	bool "MIPS Malta board"
521	select ARCH_MAY_HAVE_PC_FDC
522	select ARCH_MIGHT_HAVE_PC_PARPORT
523	select ARCH_MIGHT_HAVE_PC_SERIO
524	select BOOT_ELF32
525	select BOOT_RAW
526	select BUILTIN_DTB
527	select CEVT_R4K
528	select CLKSRC_MIPS_GIC
529	select COMMON_CLK
530	select CSRC_R4K
531	select DMA_NONCOHERENT
532	select GENERIC_ISA_DMA
533	select HAVE_PCSPKR_PLATFORM
534	select HAVE_PCI
535	select I8253
536	select I8259
537	select IRQ_MIPS_CPU
538	select MIPS_BONITO64
539	select MIPS_CPU_SCACHE
540	select MIPS_GIC
541	select MIPS_L1_CACHE_SHIFT_6
542	select MIPS_MSC
543	select PCI_GT64XXX_PCI0
544	select SMP_UP if SMP
545	select SWAP_IO_SPACE
546	select SYS_HAS_CPU_MIPS32_R1
547	select SYS_HAS_CPU_MIPS32_R2
548	select SYS_HAS_CPU_MIPS32_R3_5
549	select SYS_HAS_CPU_MIPS32_R5
550	select SYS_HAS_CPU_MIPS32_R6
551	select SYS_HAS_CPU_MIPS64_R1
552	select SYS_HAS_CPU_MIPS64_R2
553	select SYS_HAS_CPU_MIPS64_R6
554	select SYS_HAS_CPU_NEVADA
555	select SYS_HAS_CPU_RM7000
556	select SYS_SUPPORTS_32BIT_KERNEL
557	select SYS_SUPPORTS_64BIT_KERNEL
558	select SYS_SUPPORTS_BIG_ENDIAN
559	select SYS_SUPPORTS_HIGHMEM
560	select SYS_SUPPORTS_LITTLE_ENDIAN
561	select SYS_SUPPORTS_MICROMIPS
562	select SYS_SUPPORTS_MIPS16
563	select SYS_SUPPORTS_MIPS_CMP
564	select SYS_SUPPORTS_MIPS_CPS
565	select SYS_SUPPORTS_MULTITHREADING
566	select SYS_SUPPORTS_RELOCATABLE
567	select SYS_SUPPORTS_SMARTMIPS
568	select SYS_SUPPORTS_VPE_LOADER
569	select SYS_SUPPORTS_ZBOOT
570	select USE_OF
571	select WAR_ICACHE_REFILLS
572	select ZONE_DMA32 if 64BIT
573	help
574	  This enables support for the MIPS Technologies Malta evaluation
575	  board.
576
577config MACH_PIC32
578	bool "Microchip PIC32 Family"
579	help
580	  This enables support for the Microchip PIC32 family of platforms.
581
582	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
583	  microcontrollers.
584
585config MACH_VR41XX
586	bool "NEC VR4100 series based machines"
587	select CEVT_R4K
588	select CSRC_R4K
589	select SYS_HAS_CPU_VR41XX
590	select SYS_SUPPORTS_MIPS16
591	select GPIOLIB
592
593config MACH_NINTENDO64
594	bool "Nintendo 64 console"
595	select CEVT_R4K
596	select CSRC_R4K
597	select SYS_HAS_CPU_R4300
598	select SYS_SUPPORTS_BIG_ENDIAN
599	select SYS_SUPPORTS_ZBOOT
600	select SYS_SUPPORTS_32BIT_KERNEL
601	select SYS_SUPPORTS_64BIT_KERNEL
602	select DMA_NONCOHERENT
603	select IRQ_MIPS_CPU
604
605config RALINK
606	bool "Ralink based machines"
607	select CEVT_R4K
608	select COMMON_CLK
609	select CSRC_R4K
610	select BOOT_RAW
611	select DMA_NONCOHERENT
612	select IRQ_MIPS_CPU
613	select USE_OF
614	select SYS_HAS_CPU_MIPS32_R1
615	select SYS_HAS_CPU_MIPS32_R2
616	select SYS_SUPPORTS_32BIT_KERNEL
617	select SYS_SUPPORTS_LITTLE_ENDIAN
618	select SYS_SUPPORTS_MIPS16
619	select SYS_SUPPORTS_ZBOOT
620	select SYS_HAS_EARLY_PRINTK
621	select ARCH_HAS_RESET_CONTROLLER
622	select RESET_CONTROLLER
623
624config MACH_REALTEK_RTL
625	bool "Realtek RTL838x/RTL839x based machines"
626	select MIPS_GENERIC
627	select DMA_NONCOHERENT
628	select IRQ_MIPS_CPU
629	select CSRC_R4K
630	select CEVT_R4K
631	select SYS_HAS_CPU_MIPS32_R1
632	select SYS_HAS_CPU_MIPS32_R2
633	select SYS_SUPPORTS_BIG_ENDIAN
634	select SYS_SUPPORTS_32BIT_KERNEL
635	select SYS_SUPPORTS_MIPS16
636	select SYS_SUPPORTS_MULTITHREADING
637	select SYS_SUPPORTS_VPE_LOADER
638	select SYS_HAS_EARLY_PRINTK
639	select SYS_HAS_EARLY_PRINTK_8250
640	select USE_GENERIC_EARLY_PRINTK_8250
641	select BOOT_RAW
642	select PINCTRL
643	select USE_OF
644
645config SGI_IP22
646	bool "SGI IP22 (Indy/Indigo2)"
647	select ARC_MEMORY
648	select ARC_PROMLIB
649	select FW_ARC
650	select FW_ARC32
651	select ARCH_MIGHT_HAVE_PC_SERIO
652	select BOOT_ELF32
653	select CEVT_R4K
654	select CSRC_R4K
655	select DEFAULT_SGI_PARTITION
656	select DMA_NONCOHERENT
657	select HAVE_EISA
658	select I8253
659	select I8259
660	select IP22_CPU_SCACHE
661	select IRQ_MIPS_CPU
662	select GENERIC_ISA_DMA_SUPPORT_BROKEN
663	select SGI_HAS_I8042
664	select SGI_HAS_INDYDOG
665	select SGI_HAS_HAL2
666	select SGI_HAS_SEEQ
667	select SGI_HAS_WD93
668	select SGI_HAS_ZILOG
669	select SWAP_IO_SPACE
670	select SYS_HAS_CPU_R4X00
671	select SYS_HAS_CPU_R5000
672	select SYS_HAS_EARLY_PRINTK
673	select SYS_SUPPORTS_32BIT_KERNEL
674	select SYS_SUPPORTS_64BIT_KERNEL
675	select SYS_SUPPORTS_BIG_ENDIAN
676	select WAR_R4600_V1_INDEX_ICACHEOP
677	select WAR_R4600_V1_HIT_CACHEOP
678	select WAR_R4600_V2_HIT_CACHEOP
679	select MIPS_L1_CACHE_SHIFT_7
680	help
681	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
682	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
683	  that runs on these, say Y here.
684
685config SGI_IP27
686	bool "SGI IP27 (Origin200/2000)"
687	select ARCH_HAS_PHYS_TO_DMA
688	select ARCH_SPARSEMEM_ENABLE
689	select FW_ARC
690	select FW_ARC64
691	select ARC_CMDLINE_ONLY
692	select BOOT_ELF64
693	select DEFAULT_SGI_PARTITION
694	select FORCE_PCI
695	select SYS_HAS_EARLY_PRINTK
696	select HAVE_PCI
697	select IRQ_MIPS_CPU
698	select IRQ_DOMAIN_HIERARCHY
699	select NR_CPUS_DEFAULT_64
700	select PCI_DRIVERS_GENERIC
701	select PCI_XTALK_BRIDGE
702	select SYS_HAS_CPU_R10000
703	select SYS_SUPPORTS_64BIT_KERNEL
704	select SYS_SUPPORTS_BIG_ENDIAN
705	select SYS_SUPPORTS_NUMA
706	select SYS_SUPPORTS_SMP
707	select WAR_R10000_LLSC
708	select MIPS_L1_CACHE_SHIFT_7
709	select NUMA
710	help
711	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
712	  workstations.  To compile a Linux kernel that runs on these, say Y
713	  here.
714
715config SGI_IP28
716	bool "SGI IP28 (Indigo2 R10k)"
717	select ARC_MEMORY
718	select ARC_PROMLIB
719	select FW_ARC
720	select FW_ARC64
721	select ARCH_MIGHT_HAVE_PC_SERIO
722	select BOOT_ELF64
723	select CEVT_R4K
724	select CSRC_R4K
725	select DEFAULT_SGI_PARTITION
726	select DMA_NONCOHERENT
727	select GENERIC_ISA_DMA_SUPPORT_BROKEN
728	select IRQ_MIPS_CPU
729	select HAVE_EISA
730	select I8253
731	select I8259
732	select SGI_HAS_I8042
733	select SGI_HAS_INDYDOG
734	select SGI_HAS_HAL2
735	select SGI_HAS_SEEQ
736	select SGI_HAS_WD93
737	select SGI_HAS_ZILOG
738	select SWAP_IO_SPACE
739	select SYS_HAS_CPU_R10000
740	select SYS_HAS_EARLY_PRINTK
741	select SYS_SUPPORTS_64BIT_KERNEL
742	select SYS_SUPPORTS_BIG_ENDIAN
743	select WAR_R10000_LLSC
744	select MIPS_L1_CACHE_SHIFT_7
745	help
746	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
747	  kernel that runs on these, say Y here.
748
749config SGI_IP30
750	bool "SGI IP30 (Octane/Octane2)"
751	select ARCH_HAS_PHYS_TO_DMA
752	select FW_ARC
753	select FW_ARC64
754	select BOOT_ELF64
755	select CEVT_R4K
756	select CSRC_R4K
757	select FORCE_PCI
758	select SYNC_R4K if SMP
759	select ZONE_DMA32
760	select HAVE_PCI
761	select IRQ_MIPS_CPU
762	select IRQ_DOMAIN_HIERARCHY
763	select NR_CPUS_DEFAULT_2
764	select PCI_DRIVERS_GENERIC
765	select PCI_XTALK_BRIDGE
766	select SYS_HAS_EARLY_PRINTK
767	select SYS_HAS_CPU_R10000
768	select SYS_SUPPORTS_64BIT_KERNEL
769	select SYS_SUPPORTS_BIG_ENDIAN
770	select SYS_SUPPORTS_SMP
771	select WAR_R10000_LLSC
772	select MIPS_L1_CACHE_SHIFT_7
773	select ARC_MEMORY
774	help
775	  These are the SGI Octane and Octane2 graphics workstations.  To
776	  compile a Linux kernel that runs on these, say Y here.
777
778config SGI_IP32
779	bool "SGI IP32 (O2)"
780	select ARC_MEMORY
781	select ARC_PROMLIB
782	select ARCH_HAS_PHYS_TO_DMA
783	select FW_ARC
784	select FW_ARC32
785	select BOOT_ELF32
786	select CEVT_R4K
787	select CSRC_R4K
788	select DMA_NONCOHERENT
789	select HAVE_PCI
790	select IRQ_MIPS_CPU
791	select R5000_CPU_SCACHE
792	select RM7000_CPU_SCACHE
793	select SYS_HAS_CPU_R5000
794	select SYS_HAS_CPU_R10000 if BROKEN
795	select SYS_HAS_CPU_RM7000
796	select SYS_HAS_CPU_NEVADA
797	select SYS_SUPPORTS_64BIT_KERNEL
798	select SYS_SUPPORTS_BIG_ENDIAN
799	select WAR_ICACHE_REFILLS
800	help
801	  If you want this kernel to run on SGI O2 workstation, say Y here.
802
803config SIBYTE_CRHINE
804	bool "Sibyte BCM91120C-CRhine"
805	select BOOT_ELF32
806	select SIBYTE_BCM1120
807	select SWAP_IO_SPACE
808	select SYS_HAS_CPU_SB1
809	select SYS_SUPPORTS_BIG_ENDIAN
810	select SYS_SUPPORTS_LITTLE_ENDIAN
811
812config SIBYTE_CARMEL
813	bool "Sibyte BCM91120x-Carmel"
814	select BOOT_ELF32
815	select SIBYTE_BCM1120
816	select SWAP_IO_SPACE
817	select SYS_HAS_CPU_SB1
818	select SYS_SUPPORTS_BIG_ENDIAN
819	select SYS_SUPPORTS_LITTLE_ENDIAN
820
821config SIBYTE_CRHONE
822	bool "Sibyte BCM91125C-CRhone"
823	select BOOT_ELF32
824	select SIBYTE_BCM1125
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
831config SIBYTE_RHONE
832	bool "Sibyte BCM91125E-Rhone"
833	select BOOT_ELF32
834	select SIBYTE_BCM1125H
835	select SWAP_IO_SPACE
836	select SYS_HAS_CPU_SB1
837	select SYS_SUPPORTS_BIG_ENDIAN
838	select SYS_SUPPORTS_LITTLE_ENDIAN
839
840config SIBYTE_SWARM
841	bool "Sibyte BCM91250A-SWARM"
842	select BOOT_ELF32
843	select HAVE_PATA_PLATFORM
844	select SIBYTE_SB1250
845	select SWAP_IO_SPACE
846	select SYS_HAS_CPU_SB1
847	select SYS_SUPPORTS_BIG_ENDIAN
848	select SYS_SUPPORTS_HIGHMEM
849	select SYS_SUPPORTS_LITTLE_ENDIAN
850	select ZONE_DMA32 if 64BIT
851	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
852
853config SIBYTE_LITTLESUR
854	bool "Sibyte BCM91250C2-LittleSur"
855	select BOOT_ELF32
856	select HAVE_PATA_PLATFORM
857	select SIBYTE_SB1250
858	select SWAP_IO_SPACE
859	select SYS_HAS_CPU_SB1
860	select SYS_SUPPORTS_BIG_ENDIAN
861	select SYS_SUPPORTS_HIGHMEM
862	select SYS_SUPPORTS_LITTLE_ENDIAN
863	select ZONE_DMA32 if 64BIT
864
865config SIBYTE_SENTOSA
866	bool "Sibyte BCM91250E-Sentosa"
867	select BOOT_ELF32
868	select SIBYTE_SB1250
869	select SWAP_IO_SPACE
870	select SYS_HAS_CPU_SB1
871	select SYS_SUPPORTS_BIG_ENDIAN
872	select SYS_SUPPORTS_LITTLE_ENDIAN
873	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
874
875config SIBYTE_BIGSUR
876	bool "Sibyte BCM91480B-BigSur"
877	select BOOT_ELF32
878	select NR_CPUS_DEFAULT_4
879	select SIBYTE_BCM1x80
880	select SWAP_IO_SPACE
881	select SYS_HAS_CPU_SB1
882	select SYS_SUPPORTS_BIG_ENDIAN
883	select SYS_SUPPORTS_HIGHMEM
884	select SYS_SUPPORTS_LITTLE_ENDIAN
885	select ZONE_DMA32 if 64BIT
886	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
887
888config SNI_RM
889	bool "SNI RM200/300/400"
890	select ARC_MEMORY
891	select ARC_PROMLIB
892	select FW_ARC if CPU_LITTLE_ENDIAN
893	select FW_ARC32 if CPU_LITTLE_ENDIAN
894	select FW_SNIPROM if CPU_BIG_ENDIAN
895	select ARCH_MAY_HAVE_PC_FDC
896	select ARCH_MIGHT_HAVE_PC_PARPORT
897	select ARCH_MIGHT_HAVE_PC_SERIO
898	select BOOT_ELF32
899	select CEVT_R4K
900	select CSRC_R4K
901	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
902	select DMA_NONCOHERENT
903	select GENERIC_ISA_DMA
904	select HAVE_EISA
905	select HAVE_PCSPKR_PLATFORM
906	select HAVE_PCI
907	select IRQ_MIPS_CPU
908	select I8253
909	select I8259
910	select ISA
911	select MIPS_L1_CACHE_SHIFT_6
912	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
913	select SYS_HAS_CPU_R4X00
914	select SYS_HAS_CPU_R5000
915	select SYS_HAS_CPU_R10000
916	select R5000_CPU_SCACHE
917	select SYS_HAS_EARLY_PRINTK
918	select SYS_SUPPORTS_32BIT_KERNEL
919	select SYS_SUPPORTS_64BIT_KERNEL
920	select SYS_SUPPORTS_BIG_ENDIAN
921	select SYS_SUPPORTS_HIGHMEM
922	select SYS_SUPPORTS_LITTLE_ENDIAN
923	select WAR_R4600_V2_HIT_CACHEOP
924	help
925	  The SNI RM200/300/400 are MIPS-based machines manufactured by
926	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
927	  Technology and now in turn merged with Fujitsu.  Say Y here to
928	  support this machine type.
929
930config MACH_TX39XX
931	bool "Toshiba TX39 series based machines"
932
933config MACH_TX49XX
934	bool "Toshiba TX49 series based machines"
935	select WAR_TX49XX_ICACHE_INDEX_INV
936
937config MIKROTIK_RB532
938	bool "Mikrotik RB532 boards"
939	select CEVT_R4K
940	select CSRC_R4K
941	select DMA_NONCOHERENT
942	select HAVE_PCI
943	select IRQ_MIPS_CPU
944	select SYS_HAS_CPU_MIPS32_R1
945	select SYS_SUPPORTS_32BIT_KERNEL
946	select SYS_SUPPORTS_LITTLE_ENDIAN
947	select SWAP_IO_SPACE
948	select BOOT_RAW
949	select GPIOLIB
950	select MIPS_L1_CACHE_SHIFT_4
951	help
952	  Support the Mikrotik(tm) RouterBoard 532 series,
953	  based on the IDT RC32434 SoC.
954
955config CAVIUM_OCTEON_SOC
956	bool "Cavium Networks Octeon SoC based boards"
957	select CEVT_R4K
958	select ARCH_HAS_PHYS_TO_DMA
959	select HAVE_RAPIDIO
960	select PHYS_ADDR_T_64BIT
961	select SYS_SUPPORTS_64BIT_KERNEL
962	select SYS_SUPPORTS_BIG_ENDIAN
963	select EDAC_SUPPORT
964	select EDAC_ATOMIC_SCRUB
965	select SYS_SUPPORTS_LITTLE_ENDIAN
966	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
967	select SYS_HAS_EARLY_PRINTK
968	select SYS_HAS_CPU_CAVIUM_OCTEON
969	select HAVE_PCI
970	select HAVE_PLAT_DELAY
971	select HAVE_PLAT_FW_INIT_CMDLINE
972	select HAVE_PLAT_MEMCPY
973	select ZONE_DMA32
974	select GPIOLIB
975	select USE_OF
976	select ARCH_SPARSEMEM_ENABLE
977	select SYS_SUPPORTS_SMP
978	select NR_CPUS_DEFAULT_64
979	select MIPS_NR_CPU_NR_MAP_1024
980	select BUILTIN_DTB
981	select MTD
982	select MTD_COMPLEX_MAPPINGS
983	select SWIOTLB
984	select SYS_SUPPORTS_RELOCATABLE
985	help
986	  This option supports all of the Octeon reference boards from Cavium
987	  Networks. It builds a kernel that dynamically determines the Octeon
988	  CPU type and supports all known board reference implementations.
989	  Some of the supported boards are:
990		EBT3000
991		EBH3000
992		EBH3100
993		Thunder
994		Kodama
995		Hikari
996	  Say Y here for most Octeon reference boards.
997
998endchoice
999
1000source "arch/mips/alchemy/Kconfig"
1001source "arch/mips/ath25/Kconfig"
1002source "arch/mips/ath79/Kconfig"
1003source "arch/mips/bcm47xx/Kconfig"
1004source "arch/mips/bcm63xx/Kconfig"
1005source "arch/mips/bmips/Kconfig"
1006source "arch/mips/generic/Kconfig"
1007source "arch/mips/ingenic/Kconfig"
1008source "arch/mips/jazz/Kconfig"
1009source "arch/mips/lantiq/Kconfig"
1010source "arch/mips/pic32/Kconfig"
1011source "arch/mips/ralink/Kconfig"
1012source "arch/mips/sgi-ip27/Kconfig"
1013source "arch/mips/sibyte/Kconfig"
1014source "arch/mips/txx9/Kconfig"
1015source "arch/mips/vr41xx/Kconfig"
1016source "arch/mips/cavium-octeon/Kconfig"
1017source "arch/mips/loongson2ef/Kconfig"
1018source "arch/mips/loongson32/Kconfig"
1019source "arch/mips/loongson64/Kconfig"
1020
1021endmenu
1022
1023config GENERIC_HWEIGHT
1024	bool
1025	default y
1026
1027config GENERIC_CALIBRATE_DELAY
1028	bool
1029	default y
1030
1031config SCHED_OMIT_FRAME_POINTER
1032	bool
1033	default y
1034
1035#
1036# Select some configuration options automatically based on user selections.
1037#
1038config FW_ARC
1039	bool
1040
1041config ARCH_MAY_HAVE_PC_FDC
1042	bool
1043
1044config BOOT_RAW
1045	bool
1046
1047config CEVT_BCM1480
1048	bool
1049
1050config CEVT_DS1287
1051	bool
1052
1053config CEVT_GT641XX
1054	bool
1055
1056config CEVT_R4K
1057	bool
1058
1059config CEVT_SB1250
1060	bool
1061
1062config CEVT_TXX9
1063	bool
1064
1065config CSRC_BCM1480
1066	bool
1067
1068config CSRC_IOASIC
1069	bool
1070
1071config CSRC_R4K
1072	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1073	bool
1074
1075config CSRC_SB1250
1076	bool
1077
1078config MIPS_CLOCK_VSYSCALL
1079	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1080
1081config GPIO_TXX9
1082	select GPIOLIB
1083	bool
1084
1085config FW_CFE
1086	bool
1087
1088config ARCH_SUPPORTS_UPROBES
1089	bool
1090
1091config DMA_PERDEV_COHERENT
1092	bool
1093	select ARCH_HAS_SETUP_DMA_OPS
1094	select DMA_NONCOHERENT
1095
1096config DMA_NONCOHERENT
1097	bool
1098	#
1099	# MIPS allows mixing "slightly different" Cacheability and Coherency
1100	# Attribute bits.  It is believed that the uncached access through
1101	# KSEG1 and the implementation specific "uncached accelerated" used
1102	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1103	# significant advantages.
1104	#
1105	select ARCH_HAS_DMA_WRITE_COMBINE
1106	select ARCH_HAS_DMA_PREP_COHERENT
1107	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1108	select ARCH_HAS_DMA_SET_UNCACHED
1109	select DMA_NONCOHERENT_MMAP
1110	select NEED_DMA_MAP_STATE
1111
1112config SYS_HAS_EARLY_PRINTK
1113	bool
1114
1115config SYS_SUPPORTS_HOTPLUG_CPU
1116	bool
1117
1118config MIPS_BONITO64
1119	bool
1120
1121config MIPS_MSC
1122	bool
1123
1124config SYNC_R4K
1125	bool
1126
1127config NO_IOPORT_MAP
1128	def_bool n
1129
1130config GENERIC_CSUM
1131	def_bool CPU_NO_LOAD_STORE_LR
1132
1133config GENERIC_ISA_DMA
1134	bool
1135	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1136	select ISA_DMA_API
1137
1138config GENERIC_ISA_DMA_SUPPORT_BROKEN
1139	bool
1140	select GENERIC_ISA_DMA
1141
1142config HAVE_PLAT_DELAY
1143	bool
1144
1145config HAVE_PLAT_FW_INIT_CMDLINE
1146	bool
1147
1148config HAVE_PLAT_MEMCPY
1149	bool
1150
1151config ISA_DMA_API
1152	bool
1153
1154config SYS_SUPPORTS_RELOCATABLE
1155	bool
1156	help
1157	  Selected if the platform supports relocating the kernel.
1158	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1159	  to allow access to command line and entropy sources.
1160
1161#
1162# Endianness selection.  Sufficiently obscure so many users don't know what to
1163# answer,so we try hard to limit the available choices.  Also the use of a
1164# choice statement should be more obvious to the user.
1165#
1166choice
1167	prompt "Endianness selection"
1168	help
1169	  Some MIPS machines can be configured for either little or big endian
1170	  byte order. These modes require different kernels and a different
1171	  Linux distribution.  In general there is one preferred byteorder for a
1172	  particular system but some systems are just as commonly used in the
1173	  one or the other endianness.
1174
1175config CPU_BIG_ENDIAN
1176	bool "Big endian"
1177	depends on SYS_SUPPORTS_BIG_ENDIAN
1178
1179config CPU_LITTLE_ENDIAN
1180	bool "Little endian"
1181	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1182
1183endchoice
1184
1185config EXPORT_UASM
1186	bool
1187
1188config SYS_SUPPORTS_APM_EMULATION
1189	bool
1190
1191config SYS_SUPPORTS_BIG_ENDIAN
1192	bool
1193
1194config SYS_SUPPORTS_LITTLE_ENDIAN
1195	bool
1196
1197config MIPS_HUGE_TLB_SUPPORT
1198	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1199
1200config IRQ_MSP_SLP
1201	bool
1202
1203config IRQ_MSP_CIC
1204	bool
1205
1206config IRQ_TXX9
1207	bool
1208
1209config IRQ_GT641XX
1210	bool
1211
1212config PCI_GT64XXX_PCI0
1213	bool
1214
1215config PCI_XTALK_BRIDGE
1216	bool
1217
1218config NO_EXCEPT_FILL
1219	bool
1220
1221config MIPS_SPRAM
1222	bool
1223
1224config SWAP_IO_SPACE
1225	bool
1226
1227config SGI_HAS_INDYDOG
1228	bool
1229
1230config SGI_HAS_HAL2
1231	bool
1232
1233config SGI_HAS_SEEQ
1234	bool
1235
1236config SGI_HAS_WD93
1237	bool
1238
1239config SGI_HAS_ZILOG
1240	bool
1241
1242config SGI_HAS_I8042
1243	bool
1244
1245config DEFAULT_SGI_PARTITION
1246	bool
1247
1248config FW_ARC32
1249	bool
1250
1251config FW_SNIPROM
1252	bool
1253
1254config BOOT_ELF32
1255	bool
1256
1257config MIPS_L1_CACHE_SHIFT_4
1258	bool
1259
1260config MIPS_L1_CACHE_SHIFT_5
1261	bool
1262
1263config MIPS_L1_CACHE_SHIFT_6
1264	bool
1265
1266config MIPS_L1_CACHE_SHIFT_7
1267	bool
1268
1269config MIPS_L1_CACHE_SHIFT
1270	int
1271	default "7" if MIPS_L1_CACHE_SHIFT_7
1272	default "6" if MIPS_L1_CACHE_SHIFT_6
1273	default "5" if MIPS_L1_CACHE_SHIFT_5
1274	default "4" if MIPS_L1_CACHE_SHIFT_4
1275	default "5"
1276
1277config ARC_CMDLINE_ONLY
1278	bool
1279
1280config ARC_CONSOLE
1281	bool "ARC console support"
1282	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1283
1284config ARC_MEMORY
1285	bool
1286
1287config ARC_PROMLIB
1288	bool
1289
1290config FW_ARC64
1291	bool
1292
1293config BOOT_ELF64
1294	bool
1295
1296menu "CPU selection"
1297
1298choice
1299	prompt "CPU type"
1300	default CPU_R4X00
1301
1302config CPU_LOONGSON64
1303	bool "Loongson 64-bit CPU"
1304	depends on SYS_HAS_CPU_LOONGSON64
1305	select ARCH_HAS_PHYS_TO_DMA
1306	select CPU_MIPSR2
1307	select CPU_HAS_PREFETCH
1308	select CPU_SUPPORTS_64BIT_KERNEL
1309	select CPU_SUPPORTS_HIGHMEM
1310	select CPU_SUPPORTS_HUGEPAGES
1311	select CPU_SUPPORTS_MSA
1312	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1313	select CPU_MIPSR2_IRQ_VI
1314	select WEAK_ORDERING
1315	select WEAK_REORDERING_BEYOND_LLSC
1316	select MIPS_ASID_BITS_VARIABLE
1317	select MIPS_PGD_C0_CONTEXT
1318	select MIPS_L1_CACHE_SHIFT_6
1319	select MIPS_FP_SUPPORT
1320	select GPIOLIB
1321	select SWIOTLB
1322	select HAVE_KVM
1323	help
1324		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1325		cores implements the MIPS64R2 instruction set with many extensions,
1326		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1327		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1328		Loongson-2E/2F is not covered here and will be removed in future.
1329
1330config LOONGSON3_ENHANCEMENT
1331	bool "New Loongson-3 CPU Enhancements"
1332	default n
1333	depends on CPU_LOONGSON64
1334	help
1335	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1336	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1337	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1338	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1339	  Fast TLB refill support, etc.
1340
1341	  This option enable those enhancements which are not probed at run
1342	  time. If you want a generic kernel to run on all Loongson 3 machines,
1343	  please say 'N' here. If you want a high-performance kernel to run on
1344	  new Loongson-3 machines only, please say 'Y' here.
1345
1346config CPU_LOONGSON3_WORKAROUNDS
1347	bool "Old Loongson-3 LLSC Workarounds"
1348	default y if SMP
1349	depends on CPU_LOONGSON64
1350	help
1351	  Loongson-3 processors have the llsc issues which require workarounds.
1352	  Without workarounds the system may hang unexpectedly.
1353
1354	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1355	  The workarounds have no significant side effect on them but may
1356	  decrease the performance of the system so this option should be
1357	  disabled unless the kernel is intended to be run on old systems.
1358
1359	  If unsure, please say Y.
1360
1361config CPU_LOONGSON3_CPUCFG_EMULATION
1362	bool "Emulate the CPUCFG instruction on older Loongson cores"
1363	default y
1364	depends on CPU_LOONGSON64
1365	help
1366	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1367	  userland to query CPU capabilities, much like CPUID on x86. This
1368	  option provides emulation of the instruction on older Loongson
1369	  cores, back to Loongson-3A1000.
1370
1371	  If unsure, please say Y.
1372
1373config CPU_LOONGSON2E
1374	bool "Loongson 2E"
1375	depends on SYS_HAS_CPU_LOONGSON2E
1376	select CPU_LOONGSON2EF
1377	help
1378	  The Loongson 2E processor implements the MIPS III instruction set
1379	  with many extensions.
1380
1381	  It has an internal FPGA northbridge, which is compatible to
1382	  bonito64.
1383
1384config CPU_LOONGSON2F
1385	bool "Loongson 2F"
1386	depends on SYS_HAS_CPU_LOONGSON2F
1387	select CPU_LOONGSON2EF
1388	select GPIOLIB
1389	help
1390	  The Loongson 2F processor implements the MIPS III instruction set
1391	  with many extensions.
1392
1393	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1394	  have a similar programming interface with FPGA northbridge used in
1395	  Loongson2E.
1396
1397config CPU_LOONGSON1B
1398	bool "Loongson 1B"
1399	depends on SYS_HAS_CPU_LOONGSON1B
1400	select CPU_LOONGSON32
1401	select LEDS_GPIO_REGISTER
1402	help
1403	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1404	  Release 1 instruction set and part of the MIPS32 Release 2
1405	  instruction set.
1406
1407config CPU_LOONGSON1C
1408	bool "Loongson 1C"
1409	depends on SYS_HAS_CPU_LOONGSON1C
1410	select CPU_LOONGSON32
1411	select LEDS_GPIO_REGISTER
1412	help
1413	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1414	  Release 1 instruction set and part of the MIPS32 Release 2
1415	  instruction set.
1416
1417config CPU_MIPS32_R1
1418	bool "MIPS32 Release 1"
1419	depends on SYS_HAS_CPU_MIPS32_R1
1420	select CPU_HAS_PREFETCH
1421	select CPU_SUPPORTS_32BIT_KERNEL
1422	select CPU_SUPPORTS_HIGHMEM
1423	help
1424	  Choose this option to build a kernel for release 1 or later of the
1425	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1426	  MIPS processor are based on a MIPS32 processor.  If you know the
1427	  specific type of processor in your system, choose those that one
1428	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1429	  Release 2 of the MIPS32 architecture is available since several
1430	  years so chances are you even have a MIPS32 Release 2 processor
1431	  in which case you should choose CPU_MIPS32_R2 instead for better
1432	  performance.
1433
1434config CPU_MIPS32_R2
1435	bool "MIPS32 Release 2"
1436	depends on SYS_HAS_CPU_MIPS32_R2
1437	select CPU_HAS_PREFETCH
1438	select CPU_SUPPORTS_32BIT_KERNEL
1439	select CPU_SUPPORTS_HIGHMEM
1440	select CPU_SUPPORTS_MSA
1441	select HAVE_KVM
1442	help
1443	  Choose this option to build a kernel for release 2 or later of the
1444	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1445	  MIPS processor are based on a MIPS32 processor.  If you know the
1446	  specific type of processor in your system, choose those that one
1447	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1448
1449config CPU_MIPS32_R5
1450	bool "MIPS32 Release 5"
1451	depends on SYS_HAS_CPU_MIPS32_R5
1452	select CPU_HAS_PREFETCH
1453	select CPU_SUPPORTS_32BIT_KERNEL
1454	select CPU_SUPPORTS_HIGHMEM
1455	select CPU_SUPPORTS_MSA
1456	select HAVE_KVM
1457	select MIPS_O32_FP64_SUPPORT
1458	help
1459	  Choose this option to build a kernel for release 5 or later of the
1460	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1461	  family, are based on a MIPS32r5 processor. If you own an older
1462	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1463
1464config CPU_MIPS32_R6
1465	bool "MIPS32 Release 6"
1466	depends on SYS_HAS_CPU_MIPS32_R6
1467	select CPU_HAS_PREFETCH
1468	select CPU_NO_LOAD_STORE_LR
1469	select CPU_SUPPORTS_32BIT_KERNEL
1470	select CPU_SUPPORTS_HIGHMEM
1471	select CPU_SUPPORTS_MSA
1472	select HAVE_KVM
1473	select MIPS_O32_FP64_SUPPORT
1474	help
1475	  Choose this option to build a kernel for release 6 or later of the
1476	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1477	  family, are based on a MIPS32r6 processor. If you own an older
1478	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1479
1480config CPU_MIPS64_R1
1481	bool "MIPS64 Release 1"
1482	depends on SYS_HAS_CPU_MIPS64_R1
1483	select CPU_HAS_PREFETCH
1484	select CPU_SUPPORTS_32BIT_KERNEL
1485	select CPU_SUPPORTS_64BIT_KERNEL
1486	select CPU_SUPPORTS_HIGHMEM
1487	select CPU_SUPPORTS_HUGEPAGES
1488	help
1489	  Choose this option to build a kernel for release 1 or later of the
1490	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1491	  MIPS processor are based on a MIPS64 processor.  If you know the
1492	  specific type of processor in your system, choose those that one
1493	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1494	  Release 2 of the MIPS64 architecture is available since several
1495	  years so chances are you even have a MIPS64 Release 2 processor
1496	  in which case you should choose CPU_MIPS64_R2 instead for better
1497	  performance.
1498
1499config CPU_MIPS64_R2
1500	bool "MIPS64 Release 2"
1501	depends on SYS_HAS_CPU_MIPS64_R2
1502	select CPU_HAS_PREFETCH
1503	select CPU_SUPPORTS_32BIT_KERNEL
1504	select CPU_SUPPORTS_64BIT_KERNEL
1505	select CPU_SUPPORTS_HIGHMEM
1506	select CPU_SUPPORTS_HUGEPAGES
1507	select CPU_SUPPORTS_MSA
1508	select HAVE_KVM
1509	help
1510	  Choose this option to build a kernel for release 2 or later of the
1511	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1512	  MIPS processor are based on a MIPS64 processor.  If you know the
1513	  specific type of processor in your system, choose those that one
1514	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1515
1516config CPU_MIPS64_R5
1517	bool "MIPS64 Release 5"
1518	depends on SYS_HAS_CPU_MIPS64_R5
1519	select CPU_HAS_PREFETCH
1520	select CPU_SUPPORTS_32BIT_KERNEL
1521	select CPU_SUPPORTS_64BIT_KERNEL
1522	select CPU_SUPPORTS_HIGHMEM
1523	select CPU_SUPPORTS_HUGEPAGES
1524	select CPU_SUPPORTS_MSA
1525	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1526	select HAVE_KVM
1527	help
1528	  Choose this option to build a kernel for release 5 or later of the
1529	  MIPS64 architecture.  This is a intermediate MIPS architecture
1530	  release partly implementing release 6 features. Though there is no
1531	  any hardware known to be based on this release.
1532
1533config CPU_MIPS64_R6
1534	bool "MIPS64 Release 6"
1535	depends on SYS_HAS_CPU_MIPS64_R6
1536	select CPU_HAS_PREFETCH
1537	select CPU_NO_LOAD_STORE_LR
1538	select CPU_SUPPORTS_32BIT_KERNEL
1539	select CPU_SUPPORTS_64BIT_KERNEL
1540	select CPU_SUPPORTS_HIGHMEM
1541	select CPU_SUPPORTS_HUGEPAGES
1542	select CPU_SUPPORTS_MSA
1543	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1544	select HAVE_KVM
1545	help
1546	  Choose this option to build a kernel for release 6 or later of the
1547	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1548	  family, are based on a MIPS64r6 processor. If you own an older
1549	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1550
1551config CPU_P5600
1552	bool "MIPS Warrior P5600"
1553	depends on SYS_HAS_CPU_P5600
1554	select CPU_HAS_PREFETCH
1555	select CPU_SUPPORTS_32BIT_KERNEL
1556	select CPU_SUPPORTS_HIGHMEM
1557	select CPU_SUPPORTS_MSA
1558	select CPU_SUPPORTS_CPUFREQ
1559	select CPU_MIPSR2_IRQ_VI
1560	select CPU_MIPSR2_IRQ_EI
1561	select HAVE_KVM
1562	select MIPS_O32_FP64_SUPPORT
1563	help
1564	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1565	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1566	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1567	  level features like up to six P5600 calculation cores, CM2 with L2
1568	  cache, IOCU/IOMMU (though might be unused depending on the system-
1569	  specific IP core configuration), GIC, CPC, virtualisation module,
1570	  eJTAG and PDtrace.
1571
1572config CPU_R3000
1573	bool "R3000"
1574	depends on SYS_HAS_CPU_R3000
1575	select CPU_HAS_WB
1576	select CPU_R3K_TLB
1577	select CPU_SUPPORTS_32BIT_KERNEL
1578	select CPU_SUPPORTS_HIGHMEM
1579	help
1580	  Please make sure to pick the right CPU type. Linux/MIPS is not
1581	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1582	  *not* work on R4000 machines and vice versa.  However, since most
1583	  of the supported machines have an R4000 (or similar) CPU, R4x00
1584	  might be a safe bet.  If the resulting kernel does not work,
1585	  try to recompile with R3000.
1586
1587config CPU_TX39XX
1588	bool "R39XX"
1589	depends on SYS_HAS_CPU_TX39XX
1590	select CPU_SUPPORTS_32BIT_KERNEL
1591	select CPU_R3K_TLB
1592
1593config CPU_VR41XX
1594	bool "R41xx"
1595	depends on SYS_HAS_CPU_VR41XX
1596	select CPU_SUPPORTS_32BIT_KERNEL
1597	select CPU_SUPPORTS_64BIT_KERNEL
1598	help
1599	  The options selects support for the NEC VR4100 series of processors.
1600	  Only choose this option if you have one of these processors as a
1601	  kernel built with this option will not run on any other type of
1602	  processor or vice versa.
1603
1604config CPU_R4300
1605	bool "R4300"
1606	depends on SYS_HAS_CPU_R4300
1607	select CPU_SUPPORTS_32BIT_KERNEL
1608	select CPU_SUPPORTS_64BIT_KERNEL
1609	select CPU_HAS_LOAD_STORE_LR
1610	help
1611	  MIPS Technologies R4300-series processors.
1612
1613config CPU_R4X00
1614	bool "R4x00"
1615	depends on SYS_HAS_CPU_R4X00
1616	select CPU_SUPPORTS_32BIT_KERNEL
1617	select CPU_SUPPORTS_64BIT_KERNEL
1618	select CPU_SUPPORTS_HUGEPAGES
1619	help
1620	  MIPS Technologies R4000-series processors other than 4300, including
1621	  the R4000, R4400, R4600, and 4700.
1622
1623config CPU_TX49XX
1624	bool "R49XX"
1625	depends on SYS_HAS_CPU_TX49XX
1626	select CPU_HAS_PREFETCH
1627	select CPU_SUPPORTS_32BIT_KERNEL
1628	select CPU_SUPPORTS_64BIT_KERNEL
1629	select CPU_SUPPORTS_HUGEPAGES
1630
1631config CPU_R5000
1632	bool "R5000"
1633	depends on SYS_HAS_CPU_R5000
1634	select CPU_SUPPORTS_32BIT_KERNEL
1635	select CPU_SUPPORTS_64BIT_KERNEL
1636	select CPU_SUPPORTS_HUGEPAGES
1637	help
1638	  MIPS Technologies R5000-series processors other than the Nevada.
1639
1640config CPU_R5500
1641	bool "R5500"
1642	depends on SYS_HAS_CPU_R5500
1643	select CPU_SUPPORTS_32BIT_KERNEL
1644	select CPU_SUPPORTS_64BIT_KERNEL
1645	select CPU_SUPPORTS_HUGEPAGES
1646	help
1647	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1648	  instruction set.
1649
1650config CPU_NEVADA
1651	bool "RM52xx"
1652	depends on SYS_HAS_CPU_NEVADA
1653	select CPU_SUPPORTS_32BIT_KERNEL
1654	select CPU_SUPPORTS_64BIT_KERNEL
1655	select CPU_SUPPORTS_HUGEPAGES
1656	help
1657	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1658
1659config CPU_R10000
1660	bool "R10000"
1661	depends on SYS_HAS_CPU_R10000
1662	select CPU_HAS_PREFETCH
1663	select CPU_SUPPORTS_32BIT_KERNEL
1664	select CPU_SUPPORTS_64BIT_KERNEL
1665	select CPU_SUPPORTS_HIGHMEM
1666	select CPU_SUPPORTS_HUGEPAGES
1667	help
1668	  MIPS Technologies R10000-series processors.
1669
1670config CPU_RM7000
1671	bool "RM7000"
1672	depends on SYS_HAS_CPU_RM7000
1673	select CPU_HAS_PREFETCH
1674	select CPU_SUPPORTS_32BIT_KERNEL
1675	select CPU_SUPPORTS_64BIT_KERNEL
1676	select CPU_SUPPORTS_HIGHMEM
1677	select CPU_SUPPORTS_HUGEPAGES
1678
1679config CPU_SB1
1680	bool "SB1"
1681	depends on SYS_HAS_CPU_SB1
1682	select CPU_SUPPORTS_32BIT_KERNEL
1683	select CPU_SUPPORTS_64BIT_KERNEL
1684	select CPU_SUPPORTS_HIGHMEM
1685	select CPU_SUPPORTS_HUGEPAGES
1686	select WEAK_ORDERING
1687
1688config CPU_CAVIUM_OCTEON
1689	bool "Cavium Octeon processor"
1690	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1691	select CPU_HAS_PREFETCH
1692	select CPU_SUPPORTS_64BIT_KERNEL
1693	select WEAK_ORDERING
1694	select CPU_SUPPORTS_HIGHMEM
1695	select CPU_SUPPORTS_HUGEPAGES
1696	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1697	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1698	select MIPS_L1_CACHE_SHIFT_7
1699	select HAVE_KVM
1700	help
1701	  The Cavium Octeon processor is a highly integrated chip containing
1702	  many ethernet hardware widgets for networking tasks. The processor
1703	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1704	  Full details can be found at http://www.caviumnetworks.com.
1705
1706config CPU_BMIPS
1707	bool "Broadcom BMIPS"
1708	depends on SYS_HAS_CPU_BMIPS
1709	select CPU_MIPS32
1710	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1711	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1712	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1713	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1714	select CPU_SUPPORTS_32BIT_KERNEL
1715	select DMA_NONCOHERENT
1716	select IRQ_MIPS_CPU
1717	select SWAP_IO_SPACE
1718	select WEAK_ORDERING
1719	select CPU_SUPPORTS_HIGHMEM
1720	select CPU_HAS_PREFETCH
1721	select CPU_SUPPORTS_CPUFREQ
1722	select MIPS_EXTERNAL_TIMER
1723	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
1724	help
1725	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1726
1727endchoice
1728
1729config CPU_MIPS32_3_5_FEATURES
1730	bool "MIPS32 Release 3.5 Features"
1731	depends on SYS_HAS_CPU_MIPS32_R3_5
1732	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1733		   CPU_P5600
1734	help
1735	  Choose this option to build a kernel for release 2 or later of the
1736	  MIPS32 architecture including features from the 3.5 release such as
1737	  support for Enhanced Virtual Addressing (EVA).
1738
1739config CPU_MIPS32_3_5_EVA
1740	bool "Enhanced Virtual Addressing (EVA)"
1741	depends on CPU_MIPS32_3_5_FEATURES
1742	select EVA
1743	default y
1744	help
1745	  Choose this option if you want to enable the Enhanced Virtual
1746	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1747	  One of its primary benefits is an increase in the maximum size
1748	  of lowmem (up to 3GB). If unsure, say 'N' here.
1749
1750config CPU_MIPS32_R5_FEATURES
1751	bool "MIPS32 Release 5 Features"
1752	depends on SYS_HAS_CPU_MIPS32_R5
1753	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1754	help
1755	  Choose this option to build a kernel for release 2 or later of the
1756	  MIPS32 architecture including features from release 5 such as
1757	  support for Extended Physical Addressing (XPA).
1758
1759config CPU_MIPS32_R5_XPA
1760	bool "Extended Physical Addressing (XPA)"
1761	depends on CPU_MIPS32_R5_FEATURES
1762	depends on !EVA
1763	depends on !PAGE_SIZE_4KB
1764	depends on SYS_SUPPORTS_HIGHMEM
1765	select XPA
1766	select HIGHMEM
1767	select PHYS_ADDR_T_64BIT
1768	default n
1769	help
1770	  Choose this option if you want to enable the Extended Physical
1771	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1772	  benefit is to increase physical addressing equal to or greater
1773	  than 40 bits. Note that this has the side effect of turning on
1774	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1775	  If unsure, say 'N' here.
1776
1777if CPU_LOONGSON2F
1778config CPU_NOP_WORKAROUNDS
1779	bool
1780
1781config CPU_JUMP_WORKAROUNDS
1782	bool
1783
1784config CPU_LOONGSON2F_WORKAROUNDS
1785	bool "Loongson 2F Workarounds"
1786	default y
1787	select CPU_NOP_WORKAROUNDS
1788	select CPU_JUMP_WORKAROUNDS
1789	help
1790	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1791	  require workarounds.  Without workarounds the system may hang
1792	  unexpectedly.  For more information please refer to the gas
1793	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1794
1795	  Loongson 2F03 and later have fixed these issues and no workarounds
1796	  are needed.  The workarounds have no significant side effect on them
1797	  but may decrease the performance of the system so this option should
1798	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1799	  systems.
1800
1801	  If unsure, please say Y.
1802endif # CPU_LOONGSON2F
1803
1804config SYS_SUPPORTS_ZBOOT
1805	bool
1806	select HAVE_KERNEL_GZIP
1807	select HAVE_KERNEL_BZIP2
1808	select HAVE_KERNEL_LZ4
1809	select HAVE_KERNEL_LZMA
1810	select HAVE_KERNEL_LZO
1811	select HAVE_KERNEL_XZ
1812	select HAVE_KERNEL_ZSTD
1813
1814config SYS_SUPPORTS_ZBOOT_UART16550
1815	bool
1816	select SYS_SUPPORTS_ZBOOT
1817
1818config SYS_SUPPORTS_ZBOOT_UART_PROM
1819	bool
1820	select SYS_SUPPORTS_ZBOOT
1821
1822config CPU_LOONGSON2EF
1823	bool
1824	select CPU_SUPPORTS_32BIT_KERNEL
1825	select CPU_SUPPORTS_64BIT_KERNEL
1826	select CPU_SUPPORTS_HIGHMEM
1827	select CPU_SUPPORTS_HUGEPAGES
1828	select ARCH_HAS_PHYS_TO_DMA
1829
1830config CPU_LOONGSON32
1831	bool
1832	select CPU_MIPS32
1833	select CPU_MIPSR2
1834	select CPU_HAS_PREFETCH
1835	select CPU_SUPPORTS_32BIT_KERNEL
1836	select CPU_SUPPORTS_HIGHMEM
1837	select CPU_SUPPORTS_CPUFREQ
1838
1839config CPU_BMIPS32_3300
1840	select SMP_UP if SMP
1841	bool
1842
1843config CPU_BMIPS4350
1844	bool
1845	select SYS_SUPPORTS_SMP
1846	select SYS_SUPPORTS_HOTPLUG_CPU
1847
1848config CPU_BMIPS4380
1849	bool
1850	select MIPS_L1_CACHE_SHIFT_6
1851	select SYS_SUPPORTS_SMP
1852	select SYS_SUPPORTS_HOTPLUG_CPU
1853	select CPU_HAS_RIXI
1854
1855config CPU_BMIPS5000
1856	bool
1857	select MIPS_CPU_SCACHE
1858	select MIPS_L1_CACHE_SHIFT_7
1859	select SYS_SUPPORTS_SMP
1860	select SYS_SUPPORTS_HOTPLUG_CPU
1861	select CPU_HAS_RIXI
1862
1863config SYS_HAS_CPU_LOONGSON64
1864	bool
1865	select CPU_SUPPORTS_CPUFREQ
1866	select CPU_HAS_RIXI
1867
1868config SYS_HAS_CPU_LOONGSON2E
1869	bool
1870
1871config SYS_HAS_CPU_LOONGSON2F
1872	bool
1873	select CPU_SUPPORTS_CPUFREQ
1874	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1875
1876config SYS_HAS_CPU_LOONGSON1B
1877	bool
1878
1879config SYS_HAS_CPU_LOONGSON1C
1880	bool
1881
1882config SYS_HAS_CPU_MIPS32_R1
1883	bool
1884
1885config SYS_HAS_CPU_MIPS32_R2
1886	bool
1887
1888config SYS_HAS_CPU_MIPS32_R3_5
1889	bool
1890
1891config SYS_HAS_CPU_MIPS32_R5
1892	bool
1893	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1894
1895config SYS_HAS_CPU_MIPS32_R6
1896	bool
1897	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1898
1899config SYS_HAS_CPU_MIPS64_R1
1900	bool
1901
1902config SYS_HAS_CPU_MIPS64_R2
1903	bool
1904
1905config SYS_HAS_CPU_MIPS64_R6
1906	bool
1907	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1908
1909config SYS_HAS_CPU_P5600
1910	bool
1911	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1912
1913config SYS_HAS_CPU_R3000
1914	bool
1915
1916config SYS_HAS_CPU_TX39XX
1917	bool
1918
1919config SYS_HAS_CPU_VR41XX
1920	bool
1921
1922config SYS_HAS_CPU_R4300
1923	bool
1924
1925config SYS_HAS_CPU_R4X00
1926	bool
1927
1928config SYS_HAS_CPU_TX49XX
1929	bool
1930
1931config SYS_HAS_CPU_R5000
1932	bool
1933
1934config SYS_HAS_CPU_R5500
1935	bool
1936
1937config SYS_HAS_CPU_NEVADA
1938	bool
1939
1940config SYS_HAS_CPU_R10000
1941	bool
1942	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1943
1944config SYS_HAS_CPU_RM7000
1945	bool
1946
1947config SYS_HAS_CPU_SB1
1948	bool
1949
1950config SYS_HAS_CPU_CAVIUM_OCTEON
1951	bool
1952
1953config SYS_HAS_CPU_BMIPS
1954	bool
1955
1956config SYS_HAS_CPU_BMIPS32_3300
1957	bool
1958	select SYS_HAS_CPU_BMIPS
1959
1960config SYS_HAS_CPU_BMIPS4350
1961	bool
1962	select SYS_HAS_CPU_BMIPS
1963
1964config SYS_HAS_CPU_BMIPS4380
1965	bool
1966	select SYS_HAS_CPU_BMIPS
1967
1968config SYS_HAS_CPU_BMIPS5000
1969	bool
1970	select SYS_HAS_CPU_BMIPS
1971	select ARCH_HAS_SYNC_DMA_FOR_CPU
1972
1973#
1974# CPU may reorder R->R, R->W, W->R, W->W
1975# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1976#
1977config WEAK_ORDERING
1978	bool
1979
1980#
1981# CPU may reorder reads and writes beyond LL/SC
1982# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1983#
1984config WEAK_REORDERING_BEYOND_LLSC
1985	bool
1986endmenu
1987
1988#
1989# These two indicate any level of the MIPS32 and MIPS64 architecture
1990#
1991config CPU_MIPS32
1992	bool
1993	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
1994		     CPU_MIPS32_R6 || CPU_P5600
1995
1996config CPU_MIPS64
1997	bool
1998	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
1999		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
2000
2001#
2002# These indicate the revision of the architecture
2003#
2004config CPU_MIPSR1
2005	bool
2006	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2007
2008config CPU_MIPSR2
2009	bool
2010	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2011	select CPU_HAS_RIXI
2012	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2013	select MIPS_SPRAM
2014
2015config CPU_MIPSR5
2016	bool
2017	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2018	select CPU_HAS_RIXI
2019	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2020	select MIPS_SPRAM
2021
2022config CPU_MIPSR6
2023	bool
2024	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2025	select CPU_HAS_RIXI
2026	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2027	select HAVE_ARCH_BITREVERSE
2028	select MIPS_ASID_BITS_VARIABLE
2029	select MIPS_CRC_SUPPORT
2030	select MIPS_SPRAM
2031
2032config TARGET_ISA_REV
2033	int
2034	default 1 if CPU_MIPSR1
2035	default 2 if CPU_MIPSR2
2036	default 5 if CPU_MIPSR5
2037	default 6 if CPU_MIPSR6
2038	default 0
2039	help
2040	  Reflects the ISA revision being targeted by the kernel build. This
2041	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2042
2043config EVA
2044	bool
2045
2046config XPA
2047	bool
2048
2049config SYS_SUPPORTS_32BIT_KERNEL
2050	bool
2051config SYS_SUPPORTS_64BIT_KERNEL
2052	bool
2053config CPU_SUPPORTS_32BIT_KERNEL
2054	bool
2055config CPU_SUPPORTS_64BIT_KERNEL
2056	bool
2057config CPU_SUPPORTS_CPUFREQ
2058	bool
2059config CPU_SUPPORTS_ADDRWINCFG
2060	bool
2061config CPU_SUPPORTS_HUGEPAGES
2062	bool
2063	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2064config MIPS_PGD_C0_CONTEXT
2065	bool
2066	depends on 64BIT
2067	default y if (CPU_MIPSR2 || CPU_MIPSR6)
2068
2069#
2070# Set to y for ptrace access to watch registers.
2071#
2072config HARDWARE_WATCHPOINTS
2073	bool
2074	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2075
2076menu "Kernel type"
2077
2078choice
2079	prompt "Kernel code model"
2080	help
2081	  You should only select this option if you have a workload that
2082	  actually benefits from 64-bit processing or if your machine has
2083	  large memory.  You will only be presented a single option in this
2084	  menu if your system does not support both 32-bit and 64-bit kernels.
2085
2086config 32BIT
2087	bool "32-bit kernel"
2088	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2089	select TRAD_SIGNALS
2090	help
2091	  Select this option if you want to build a 32-bit kernel.
2092
2093config 64BIT
2094	bool "64-bit kernel"
2095	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2096	help
2097	  Select this option if you want to build a 64-bit kernel.
2098
2099endchoice
2100
2101config MIPS_VA_BITS_48
2102	bool "48 bits virtual memory"
2103	depends on 64BIT
2104	help
2105	  Support a maximum at least 48 bits of application virtual
2106	  memory.  Default is 40 bits or less, depending on the CPU.
2107	  For page sizes 16k and above, this option results in a small
2108	  memory overhead for page tables.  For 4k page size, a fourth
2109	  level of page tables is added which imposes both a memory
2110	  overhead as well as slower TLB fault handling.
2111
2112	  If unsure, say N.
2113
2114choice
2115	prompt "Kernel page size"
2116	default PAGE_SIZE_4KB
2117
2118config PAGE_SIZE_4KB
2119	bool "4kB"
2120	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2121	help
2122	  This option select the standard 4kB Linux page size.  On some
2123	  R3000-family processors this is the only available page size.  Using
2124	  4kB page size will minimize memory consumption and is therefore
2125	  recommended for low memory systems.
2126
2127config PAGE_SIZE_8KB
2128	bool "8kB"
2129	depends on CPU_CAVIUM_OCTEON
2130	depends on !MIPS_VA_BITS_48
2131	help
2132	  Using 8kB page size will result in higher performance kernel at
2133	  the price of higher memory consumption.  This option is available
2134	  only on cnMIPS processors.  Note that you will need a suitable Linux
2135	  distribution to support this.
2136
2137config PAGE_SIZE_16KB
2138	bool "16kB"
2139	depends on !CPU_R3000 && !CPU_TX39XX
2140	help
2141	  Using 16kB page size will result in higher performance kernel at
2142	  the price of higher memory consumption.  This option is available on
2143	  all non-R3000 family processors.  Note that you will need a suitable
2144	  Linux distribution to support this.
2145
2146config PAGE_SIZE_32KB
2147	bool "32kB"
2148	depends on CPU_CAVIUM_OCTEON
2149	depends on !MIPS_VA_BITS_48
2150	help
2151	  Using 32kB page size will result in higher performance kernel at
2152	  the price of higher memory consumption.  This option is available
2153	  only on cnMIPS cores.  Note that you will need a suitable Linux
2154	  distribution to support this.
2155
2156config PAGE_SIZE_64KB
2157	bool "64kB"
2158	depends on !CPU_R3000 && !CPU_TX39XX
2159	help
2160	  Using 64kB page size will result in higher performance kernel at
2161	  the price of higher memory consumption.  This option is available on
2162	  all non-R3000 family processor.  Not that at the time of this
2163	  writing this option is still high experimental.
2164
2165endchoice
2166
2167config FORCE_MAX_ZONEORDER
2168	int "Maximum zone order"
2169	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2170	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2171	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2172	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2173	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2174	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2175	range 0 64
2176	default "11"
2177	help
2178	  The kernel memory allocator divides physically contiguous memory
2179	  blocks into "zones", where each zone is a power of two number of
2180	  pages.  This option selects the largest power of two that the kernel
2181	  keeps in the memory allocator.  If you need to allocate very large
2182	  blocks of physically contiguous memory, then you may need to
2183	  increase this value.
2184
2185	  This config option is actually maximum order plus one. For example,
2186	  a value of 11 means that the largest free memory block is 2^10 pages.
2187
2188	  The page size is not necessarily 4KB.  Keep this in mind
2189	  when choosing a value for this option.
2190
2191config BOARD_SCACHE
2192	bool
2193
2194config IP22_CPU_SCACHE
2195	bool
2196	select BOARD_SCACHE
2197
2198#
2199# Support for a MIPS32 / MIPS64 style S-caches
2200#
2201config MIPS_CPU_SCACHE
2202	bool
2203	select BOARD_SCACHE
2204
2205config R5000_CPU_SCACHE
2206	bool
2207	select BOARD_SCACHE
2208
2209config RM7000_CPU_SCACHE
2210	bool
2211	select BOARD_SCACHE
2212
2213config SIBYTE_DMA_PAGEOPS
2214	bool "Use DMA to clear/copy pages"
2215	depends on CPU_SB1
2216	help
2217	  Instead of using the CPU to zero and copy pages, use a Data Mover
2218	  channel.  These DMA channels are otherwise unused by the standard
2219	  SiByte Linux port.  Seems to give a small performance benefit.
2220
2221config CPU_HAS_PREFETCH
2222	bool
2223
2224config CPU_GENERIC_DUMP_TLB
2225	bool
2226	default y if !(CPU_R3000 || CPU_TX39XX)
2227
2228config MIPS_FP_SUPPORT
2229	bool "Floating Point support" if EXPERT
2230	default y
2231	help
2232	  Select y to include support for floating point in the kernel
2233	  including initialization of FPU hardware, FP context save & restore
2234	  and emulation of an FPU where necessary. Without this support any
2235	  userland program attempting to use floating point instructions will
2236	  receive a SIGILL.
2237
2238	  If you know that your userland will not attempt to use floating point
2239	  instructions then you can say n here to shrink the kernel a little.
2240
2241	  If unsure, say y.
2242
2243config CPU_R2300_FPU
2244	bool
2245	depends on MIPS_FP_SUPPORT
2246	default y if CPU_R3000 || CPU_TX39XX
2247
2248config CPU_R3K_TLB
2249	bool
2250
2251config CPU_R4K_FPU
2252	bool
2253	depends on MIPS_FP_SUPPORT
2254	default y if !CPU_R2300_FPU
2255
2256config CPU_R4K_CACHE_TLB
2257	bool
2258	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2259
2260config MIPS_MT_SMP
2261	bool "MIPS MT SMP support (1 TC on each available VPE)"
2262	default y
2263	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2264	select CPU_MIPSR2_IRQ_VI
2265	select CPU_MIPSR2_IRQ_EI
2266	select SYNC_R4K
2267	select MIPS_MT
2268	select SMP
2269	select SMP_UP
2270	select SYS_SUPPORTS_SMP
2271	select SYS_SUPPORTS_SCHED_SMT
2272	select MIPS_PERF_SHARED_TC_COUNTERS
2273	help
2274	  This is a kernel model which is known as SMVP. This is supported
2275	  on cores with the MT ASE and uses the available VPEs to implement
2276	  virtual processors which supports SMP. This is equivalent to the
2277	  Intel Hyperthreading feature. For further information go to
2278	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2279
2280config MIPS_MT
2281	bool
2282
2283config SCHED_SMT
2284	bool "SMT (multithreading) scheduler support"
2285	depends on SYS_SUPPORTS_SCHED_SMT
2286	default n
2287	help
2288	  SMT scheduler support improves the CPU scheduler's decision making
2289	  when dealing with MIPS MT enabled cores at a cost of slightly
2290	  increased overhead in some places. If unsure say N here.
2291
2292config SYS_SUPPORTS_SCHED_SMT
2293	bool
2294
2295config SYS_SUPPORTS_MULTITHREADING
2296	bool
2297
2298config MIPS_MT_FPAFF
2299	bool "Dynamic FPU affinity for FP-intensive threads"
2300	default y
2301	depends on MIPS_MT_SMP
2302
2303config MIPSR2_TO_R6_EMULATOR
2304	bool "MIPS R2-to-R6 emulator"
2305	depends on CPU_MIPSR6
2306	depends on MIPS_FP_SUPPORT
2307	default y
2308	help
2309	  Choose this option if you want to run non-R6 MIPS userland code.
2310	  Even if you say 'Y' here, the emulator will still be disabled by
2311	  default. You can enable it using the 'mipsr2emu' kernel option.
2312	  The only reason this is a build-time option is to save ~14K from the
2313	  final kernel image.
2314
2315config SYS_SUPPORTS_VPE_LOADER
2316	bool
2317	depends on SYS_SUPPORTS_MULTITHREADING
2318	help
2319	  Indicates that the platform supports the VPE loader, and provides
2320	  physical_memsize.
2321
2322config MIPS_VPE_LOADER
2323	bool "VPE loader support."
2324	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2325	select CPU_MIPSR2_IRQ_VI
2326	select CPU_MIPSR2_IRQ_EI
2327	select MIPS_MT
2328	help
2329	  Includes a loader for loading an elf relocatable object
2330	  onto another VPE and running it.
2331
2332config MIPS_VPE_LOADER_CMP
2333	bool
2334	default "y"
2335	depends on MIPS_VPE_LOADER && MIPS_CMP
2336
2337config MIPS_VPE_LOADER_MT
2338	bool
2339	default "y"
2340	depends on MIPS_VPE_LOADER && !MIPS_CMP
2341
2342config MIPS_VPE_LOADER_TOM
2343	bool "Load VPE program into memory hidden from linux"
2344	depends on MIPS_VPE_LOADER
2345	default y
2346	help
2347	  The loader can use memory that is present but has been hidden from
2348	  Linux using the kernel command line option "mem=xxMB". It's up to
2349	  you to ensure the amount you put in the option and the space your
2350	  program requires is less or equal to the amount physically present.
2351
2352config MIPS_VPE_APSP_API
2353	bool "Enable support for AP/SP API (RTLX)"
2354	depends on MIPS_VPE_LOADER
2355
2356config MIPS_VPE_APSP_API_CMP
2357	bool
2358	default "y"
2359	depends on MIPS_VPE_APSP_API && MIPS_CMP
2360
2361config MIPS_VPE_APSP_API_MT
2362	bool
2363	default "y"
2364	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2365
2366config MIPS_CMP
2367	bool "MIPS CMP framework support (DEPRECATED)"
2368	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2369	select SMP
2370	select SYNC_R4K
2371	select SYS_SUPPORTS_SMP
2372	select WEAK_ORDERING
2373	default n
2374	help
2375	  Select this if you are using a bootloader which implements the "CMP
2376	  framework" protocol (ie. YAMON) and want your kernel to make use of
2377	  its ability to start secondary CPUs.
2378
2379	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2380	  instead of this.
2381
2382config MIPS_CPS
2383	bool "MIPS Coherent Processing System support"
2384	depends on SYS_SUPPORTS_MIPS_CPS
2385	select MIPS_CM
2386	select MIPS_CPS_PM if HOTPLUG_CPU
2387	select SMP
2388	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2389	select SYS_SUPPORTS_HOTPLUG_CPU
2390	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2391	select SYS_SUPPORTS_SMP
2392	select WEAK_ORDERING
2393	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2394	help
2395	  Select this if you wish to run an SMP kernel across multiple cores
2396	  within a MIPS Coherent Processing System. When this option is
2397	  enabled the kernel will probe for other cores and boot them with
2398	  no external assistance. It is safe to enable this when hardware
2399	  support is unavailable.
2400
2401config MIPS_CPS_PM
2402	depends on MIPS_CPS
2403	bool
2404
2405config MIPS_CM
2406	bool
2407	select MIPS_CPC
2408
2409config MIPS_CPC
2410	bool
2411
2412config SB1_PASS_2_WORKAROUNDS
2413	bool
2414	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2415	default y
2416
2417config SB1_PASS_2_1_WORKAROUNDS
2418	bool
2419	depends on CPU_SB1 && CPU_SB1_PASS_2
2420	default y
2421
2422choice
2423	prompt "SmartMIPS or microMIPS ASE support"
2424
2425config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2426	bool "None"
2427	help
2428	  Select this if you want neither microMIPS nor SmartMIPS support
2429
2430config CPU_HAS_SMARTMIPS
2431	depends on SYS_SUPPORTS_SMARTMIPS
2432	bool "SmartMIPS"
2433	help
2434	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2435	  increased security at both hardware and software level for
2436	  smartcards.  Enabling this option will allow proper use of the
2437	  SmartMIPS instructions by Linux applications.  However a kernel with
2438	  this option will not work on a MIPS core without SmartMIPS core.  If
2439	  you don't know you probably don't have SmartMIPS and should say N
2440	  here.
2441
2442config CPU_MICROMIPS
2443	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2444	bool "microMIPS"
2445	help
2446	  When this option is enabled the kernel will be built using the
2447	  microMIPS ISA
2448
2449endchoice
2450
2451config CPU_HAS_MSA
2452	bool "Support for the MIPS SIMD Architecture"
2453	depends on CPU_SUPPORTS_MSA
2454	depends on MIPS_FP_SUPPORT
2455	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2456	help
2457	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2458	  and a set of SIMD instructions to operate on them. When this option
2459	  is enabled the kernel will support allocating & switching MSA
2460	  vector register contexts. If you know that your kernel will only be
2461	  running on CPUs which do not support MSA or that your userland will
2462	  not be making use of it then you may wish to say N here to reduce
2463	  the size & complexity of your kernel.
2464
2465	  If unsure, say Y.
2466
2467config CPU_HAS_WB
2468	bool
2469
2470config XKS01
2471	bool
2472
2473config CPU_HAS_DIEI
2474	depends on !CPU_DIEI_BROKEN
2475	bool
2476
2477config CPU_DIEI_BROKEN
2478	bool
2479
2480config CPU_HAS_RIXI
2481	bool
2482
2483config CPU_NO_LOAD_STORE_LR
2484	bool
2485	help
2486	  CPU lacks support for unaligned load and store instructions:
2487	  LWL, LWR, SWL, SWR (Load/store word left/right).
2488	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2489	  systems).
2490
2491#
2492# Vectored interrupt mode is an R2 feature
2493#
2494config CPU_MIPSR2_IRQ_VI
2495	bool
2496
2497#
2498# Extended interrupt mode is an R2 feature
2499#
2500config CPU_MIPSR2_IRQ_EI
2501	bool
2502
2503config CPU_HAS_SYNC
2504	bool
2505	depends on !CPU_R3000
2506	default y
2507
2508#
2509# CPU non-features
2510#
2511config CPU_DADDI_WORKAROUNDS
2512	bool
2513
2514config CPU_R4000_WORKAROUNDS
2515	bool
2516	select CPU_R4400_WORKAROUNDS
2517
2518config CPU_R4400_WORKAROUNDS
2519	bool
2520
2521config CPU_R4X00_BUGS64
2522	bool
2523	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2524
2525config MIPS_ASID_SHIFT
2526	int
2527	default 6 if CPU_R3000 || CPU_TX39XX
2528	default 0
2529
2530config MIPS_ASID_BITS
2531	int
2532	default 0 if MIPS_ASID_BITS_VARIABLE
2533	default 6 if CPU_R3000 || CPU_TX39XX
2534	default 8
2535
2536config MIPS_ASID_BITS_VARIABLE
2537	bool
2538
2539config MIPS_CRC_SUPPORT
2540	bool
2541
2542# R4600 erratum.  Due to the lack of errata information the exact
2543# technical details aren't known.  I've experimentally found that disabling
2544# interrupts during indexed I-cache flushes seems to be sufficient to deal
2545# with the issue.
2546config WAR_R4600_V1_INDEX_ICACHEOP
2547	bool
2548
2549# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
2550#
2551#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2552#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2553#      executed if there is no other dcache activity. If the dcache is
2554#      accessed for another instruction immediately preceding when these
2555#      cache instructions are executing, it is possible that the dcache
2556#      tag match outputs used by these cache instructions will be
2557#      incorrect. These cache instructions should be preceded by at least
2558#      four instructions that are not any kind of load or store
2559#      instruction.
2560#
2561#      This is not allowed:    lw
2562#                              nop
2563#                              nop
2564#                              nop
2565#                              cache       Hit_Writeback_Invalidate_D
2566#
2567#      This is allowed:        lw
2568#                              nop
2569#                              nop
2570#                              nop
2571#                              nop
2572#                              cache       Hit_Writeback_Invalidate_D
2573config WAR_R4600_V1_HIT_CACHEOP
2574	bool
2575
2576# Writeback and invalidate the primary cache dcache before DMA.
2577#
2578# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2579# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2580# operate correctly if the internal data cache refill buffer is empty.  These
2581# CACHE instructions should be separated from any potential data cache miss
2582# by a load instruction to an uncached address to empty the response buffer."
2583# (Revision 2.0 device errata from IDT available on https://www.idt.com/
2584# in .pdf format.)
2585config WAR_R4600_V2_HIT_CACHEOP
2586	bool
2587
2588# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2589# the line which this instruction itself exists, the following
2590# operation is not guaranteed."
2591#
2592# Workaround: do two phase flushing for Index_Invalidate_I
2593config WAR_TX49XX_ICACHE_INDEX_INV
2594	bool
2595
2596# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2597# opposes it being called that) where invalid instructions in the same
2598# I-cache line worth of instructions being fetched may case spurious
2599# exceptions.
2600config WAR_ICACHE_REFILLS
2601	bool
2602
2603# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2604# may cause ll / sc and lld / scd sequences to execute non-atomically.
2605config WAR_R10000_LLSC
2606	bool
2607
2608# 34K core erratum: "Problems Executing the TLBR Instruction"
2609config WAR_MIPS34K_MISSED_ITLB
2610	bool
2611
2612#
2613# - Highmem only makes sense for the 32-bit kernel.
2614# - The current highmem code will only work properly on physically indexed
2615#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2616#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2617#   moment we protect the user and offer the highmem option only on machines
2618#   where it's known to be safe.  This will not offer highmem on a few systems
2619#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2620#   indexed CPUs but we're playing safe.
2621# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2622#   know they might have memory configurations that could make use of highmem
2623#   support.
2624#
2625config HIGHMEM
2626	bool "High Memory Support"
2627	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2628	select KMAP_LOCAL
2629
2630config CPU_SUPPORTS_HIGHMEM
2631	bool
2632
2633config SYS_SUPPORTS_HIGHMEM
2634	bool
2635
2636config SYS_SUPPORTS_SMARTMIPS
2637	bool
2638
2639config SYS_SUPPORTS_MICROMIPS
2640	bool
2641
2642config SYS_SUPPORTS_MIPS16
2643	bool
2644	help
2645	  This option must be set if a kernel might be executed on a MIPS16-
2646	  enabled CPU even if MIPS16 is not actually being used.  In other
2647	  words, it makes the kernel MIPS16-tolerant.
2648
2649config CPU_SUPPORTS_MSA
2650	bool
2651
2652config ARCH_FLATMEM_ENABLE
2653	def_bool y
2654	depends on !NUMA && !CPU_LOONGSON2EF
2655
2656config ARCH_SPARSEMEM_ENABLE
2657	bool
2658	select SPARSEMEM_STATIC if !SGI_IP27
2659
2660config NUMA
2661	bool "NUMA Support"
2662	depends on SYS_SUPPORTS_NUMA
2663	select SMP
2664	help
2665	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2666	  Access).  This option improves performance on systems with more
2667	  than two nodes; on two node systems it is generally better to
2668	  leave it disabled; on single node systems leave this option
2669	  disabled.
2670
2671config SYS_SUPPORTS_NUMA
2672	bool
2673
2674config HAVE_SETUP_PER_CPU_AREA
2675	def_bool y
2676	depends on NUMA
2677
2678config NEED_PER_CPU_EMBED_FIRST_CHUNK
2679	def_bool y
2680	depends on NUMA
2681
2682config RELOCATABLE
2683	bool "Relocatable kernel"
2684	depends on SYS_SUPPORTS_RELOCATABLE
2685	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2686		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2687		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2688		   CPU_P5600 || CAVIUM_OCTEON_SOC || \
2689		   CPU_LOONGSON64
2690	help
2691	  This builds a kernel image that retains relocation information
2692	  so it can be loaded someplace besides the default 1MB.
2693	  The relocations make the kernel binary about 15% larger,
2694	  but are discarded at runtime
2695
2696config RELOCATION_TABLE_SIZE
2697	hex "Relocation table size"
2698	depends on RELOCATABLE
2699	range 0x0 0x01000000
2700	default "0x00200000" if CPU_LOONGSON64
2701	default "0x00100000"
2702	help
2703	  A table of relocation data will be appended to the kernel binary
2704	  and parsed at boot to fix up the relocated kernel.
2705
2706	  This option allows the amount of space reserved for the table to be
2707	  adjusted, although the default of 1Mb should be ok in most cases.
2708
2709	  The build will fail and a valid size suggested if this is too small.
2710
2711	  If unsure, leave at the default value.
2712
2713config RANDOMIZE_BASE
2714	bool "Randomize the address of the kernel image"
2715	depends on RELOCATABLE
2716	help
2717	  Randomizes the physical and virtual address at which the
2718	  kernel image is loaded, as a security feature that
2719	  deters exploit attempts relying on knowledge of the location
2720	  of kernel internals.
2721
2722	  Entropy is generated using any coprocessor 0 registers available.
2723
2724	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2725
2726	  If unsure, say N.
2727
2728config RANDOMIZE_BASE_MAX_OFFSET
2729	hex "Maximum kASLR offset" if EXPERT
2730	depends on RANDOMIZE_BASE
2731	range 0x0 0x40000000 if EVA || 64BIT
2732	range 0x0 0x08000000
2733	default "0x01000000"
2734	help
2735	  When kASLR is active, this provides the maximum offset that will
2736	  be applied to the kernel image. It should be set according to the
2737	  amount of physical RAM available in the target system minus
2738	  PHYSICAL_START and must be a power of 2.
2739
2740	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2741	  EVA or 64-bit. The default is 16Mb.
2742
2743config NODES_SHIFT
2744	int
2745	default "6"
2746	depends on NUMA
2747
2748config HW_PERF_EVENTS
2749	bool "Enable hardware performance counter support for perf events"
2750	depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64)
2751	default y
2752	help
2753	  Enable hardware performance counter support for perf events. If
2754	  disabled, perf events will use software events only.
2755
2756config DMI
2757	bool "Enable DMI scanning"
2758	depends on MACH_LOONGSON64
2759	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2760	default y
2761	help
2762	  Enabled scanning of DMI to identify machine quirks. Say Y
2763	  here unless you have verified that your setup is not
2764	  affected by entries in the DMI blacklist. Required by PNP
2765	  BIOS code.
2766
2767config SMP
2768	bool "Multi-Processing support"
2769	depends on SYS_SUPPORTS_SMP
2770	help
2771	  This enables support for systems with more than one CPU. If you have
2772	  a system with only one CPU, say N. If you have a system with more
2773	  than one CPU, say Y.
2774
2775	  If you say N here, the kernel will run on uni- and multiprocessor
2776	  machines, but will use only one CPU of a multiprocessor machine. If
2777	  you say Y here, the kernel will run on many, but not all,
2778	  uniprocessor machines. On a uniprocessor machine, the kernel
2779	  will run faster if you say N here.
2780
2781	  People using multiprocessor machines who say Y here should also say
2782	  Y to "Enhanced Real Time Clock Support", below.
2783
2784	  See also the SMP-HOWTO available at
2785	  <https://www.tldp.org/docs.html#howto>.
2786
2787	  If you don't know what to do here, say N.
2788
2789config HOTPLUG_CPU
2790	bool "Support for hot-pluggable CPUs"
2791	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2792	help
2793	  Say Y here to allow turning CPUs off and on. CPUs can be
2794	  controlled through /sys/devices/system/cpu.
2795	  (Note: power management support will enable this option
2796	    automatically on SMP systems. )
2797	  Say N if you want to disable CPU hotplug.
2798
2799config SMP_UP
2800	bool
2801
2802config SYS_SUPPORTS_MIPS_CMP
2803	bool
2804
2805config SYS_SUPPORTS_MIPS_CPS
2806	bool
2807
2808config SYS_SUPPORTS_SMP
2809	bool
2810
2811config NR_CPUS_DEFAULT_4
2812	bool
2813
2814config NR_CPUS_DEFAULT_8
2815	bool
2816
2817config NR_CPUS_DEFAULT_16
2818	bool
2819
2820config NR_CPUS_DEFAULT_32
2821	bool
2822
2823config NR_CPUS_DEFAULT_64
2824	bool
2825
2826config NR_CPUS
2827	int "Maximum number of CPUs (2-256)"
2828	range 2 256
2829	depends on SMP
2830	default "4" if NR_CPUS_DEFAULT_4
2831	default "8" if NR_CPUS_DEFAULT_8
2832	default "16" if NR_CPUS_DEFAULT_16
2833	default "32" if NR_CPUS_DEFAULT_32
2834	default "64" if NR_CPUS_DEFAULT_64
2835	help
2836	  This allows you to specify the maximum number of CPUs which this
2837	  kernel will support.  The maximum supported value is 32 for 32-bit
2838	  kernel and 64 for 64-bit kernels; the minimum value which makes
2839	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2840	  and 2 for all others.
2841
2842	  This is purely to save memory - each supported CPU adds
2843	  approximately eight kilobytes to the kernel image.  For best
2844	  performance should round up your number of processors to the next
2845	  power of two.
2846
2847config MIPS_PERF_SHARED_TC_COUNTERS
2848	bool
2849
2850config MIPS_NR_CPU_NR_MAP_1024
2851	bool
2852
2853config MIPS_NR_CPU_NR_MAP
2854	int
2855	depends on SMP
2856	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2857	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2858
2859#
2860# Timer Interrupt Frequency Configuration
2861#
2862
2863choice
2864	prompt "Timer frequency"
2865	default HZ_250
2866	help
2867	  Allows the configuration of the timer frequency.
2868
2869	config HZ_24
2870		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2871
2872	config HZ_48
2873		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2874
2875	config HZ_100
2876		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2877
2878	config HZ_128
2879		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2880
2881	config HZ_250
2882		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2883
2884	config HZ_256
2885		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2886
2887	config HZ_1000
2888		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2889
2890	config HZ_1024
2891		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2892
2893endchoice
2894
2895config SYS_SUPPORTS_24HZ
2896	bool
2897
2898config SYS_SUPPORTS_48HZ
2899	bool
2900
2901config SYS_SUPPORTS_100HZ
2902	bool
2903
2904config SYS_SUPPORTS_128HZ
2905	bool
2906
2907config SYS_SUPPORTS_250HZ
2908	bool
2909
2910config SYS_SUPPORTS_256HZ
2911	bool
2912
2913config SYS_SUPPORTS_1000HZ
2914	bool
2915
2916config SYS_SUPPORTS_1024HZ
2917	bool
2918
2919config SYS_SUPPORTS_ARBIT_HZ
2920	bool
2921	default y if !SYS_SUPPORTS_24HZ && \
2922		     !SYS_SUPPORTS_48HZ && \
2923		     !SYS_SUPPORTS_100HZ && \
2924		     !SYS_SUPPORTS_128HZ && \
2925		     !SYS_SUPPORTS_250HZ && \
2926		     !SYS_SUPPORTS_256HZ && \
2927		     !SYS_SUPPORTS_1000HZ && \
2928		     !SYS_SUPPORTS_1024HZ
2929
2930config HZ
2931	int
2932	default 24 if HZ_24
2933	default 48 if HZ_48
2934	default 100 if HZ_100
2935	default 128 if HZ_128
2936	default 250 if HZ_250
2937	default 256 if HZ_256
2938	default 1000 if HZ_1000
2939	default 1024 if HZ_1024
2940
2941config SCHED_HRTICK
2942	def_bool HIGH_RES_TIMERS
2943
2944config KEXEC
2945	bool "Kexec system call"
2946	select KEXEC_CORE
2947	help
2948	  kexec is a system call that implements the ability to shutdown your
2949	  current kernel, and to start another kernel.  It is like a reboot
2950	  but it is independent of the system firmware.   And like a reboot
2951	  you can start any kernel with it, not just Linux.
2952
2953	  The name comes from the similarity to the exec system call.
2954
2955	  It is an ongoing process to be certain the hardware in a machine
2956	  is properly shutdown, so do not be surprised if this code does not
2957	  initially work for you.  As of this writing the exact hardware
2958	  interface is strongly in flux, so no good recommendation can be
2959	  made.
2960
2961config CRASH_DUMP
2962	bool "Kernel crash dumps"
2963	help
2964	  Generate crash dump after being started by kexec.
2965	  This should be normally only set in special crash dump kernels
2966	  which are loaded in the main kernel with kexec-tools into
2967	  a specially reserved region and then later executed after
2968	  a crash by kdump/kexec. The crash dump kernel must be compiled
2969	  to a memory address not used by the main kernel or firmware using
2970	  PHYSICAL_START.
2971
2972config PHYSICAL_START
2973	hex "Physical address where the kernel is loaded"
2974	default "0xffffffff84000000"
2975	depends on CRASH_DUMP
2976	help
2977	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2978	  If you plan to use kernel for capturing the crash dump change
2979	  this value to start of the reserved region (the "X" value as
2980	  specified in the "crashkernel=YM@XM" command line boot parameter
2981	  passed to the panic-ed kernel).
2982
2983config MIPS_O32_FP64_SUPPORT
2984	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2985	depends on 32BIT || MIPS32_O32
2986	help
2987	  When this is enabled, the kernel will support use of 64-bit floating
2988	  point registers with binaries using the O32 ABI along with the
2989	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2990	  32-bit MIPS systems this support is at the cost of increasing the
2991	  size and complexity of the compiled FPU emulator. Thus if you are
2992	  running a MIPS32 system and know that none of your userland binaries
2993	  will require 64-bit floating point, you may wish to reduce the size
2994	  of your kernel & potentially improve FP emulation performance by
2995	  saying N here.
2996
2997	  Although binutils currently supports use of this flag the details
2998	  concerning its effect upon the O32 ABI in userland are still being
2999	  worked on. In order to avoid userland becoming dependent upon current
3000	  behaviour before the details have been finalised, this option should
3001	  be considered experimental and only enabled by those working upon
3002	  said details.
3003
3004	  If unsure, say N.
3005
3006config USE_OF
3007	bool
3008	select OF
3009	select OF_EARLY_FLATTREE
3010	select IRQ_DOMAIN
3011
3012config UHI_BOOT
3013	bool
3014
3015config BUILTIN_DTB
3016	bool
3017
3018choice
3019	prompt "Kernel appended dtb support" if USE_OF
3020	default MIPS_NO_APPENDED_DTB
3021
3022	config MIPS_NO_APPENDED_DTB
3023		bool "None"
3024		help
3025		  Do not enable appended dtb support.
3026
3027	config MIPS_ELF_APPENDED_DTB
3028		bool "vmlinux"
3029		help
3030		  With this option, the boot code will look for a device tree binary
3031		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3032		  it is empty and the DTB can be appended using binutils command
3033		  objcopy:
3034
3035		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3036
3037		  This is meant as a backward compatibility convenience for those
3038		  systems with a bootloader that can't be upgraded to accommodate
3039		  the documented boot protocol using a device tree.
3040
3041	config MIPS_RAW_APPENDED_DTB
3042		bool "vmlinux.bin or vmlinuz.bin"
3043		help
3044		  With this option, the boot code will look for a device tree binary
3045		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3046		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3047
3048		  This is meant as a backward compatibility convenience for those
3049		  systems with a bootloader that can't be upgraded to accommodate
3050		  the documented boot protocol using a device tree.
3051
3052		  Beware that there is very little in terms of protection against
3053		  this option being confused by leftover garbage in memory that might
3054		  look like a DTB header after a reboot if no actual DTB is appended
3055		  to vmlinux.bin.  Do not leave this option active in a production kernel
3056		  if you don't intend to always append a DTB.
3057endchoice
3058
3059choice
3060	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3061	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3062					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3063					 !CAVIUM_OCTEON_SOC
3064	default MIPS_CMDLINE_FROM_BOOTLOADER
3065
3066	config MIPS_CMDLINE_FROM_DTB
3067		depends on USE_OF
3068		bool "Dtb kernel arguments if available"
3069
3070	config MIPS_CMDLINE_DTB_EXTEND
3071		depends on USE_OF
3072		bool "Extend dtb kernel arguments with bootloader arguments"
3073
3074	config MIPS_CMDLINE_FROM_BOOTLOADER
3075		bool "Bootloader kernel arguments if available"
3076
3077	config MIPS_CMDLINE_BUILTIN_EXTEND
3078		depends on CMDLINE_BOOL
3079		bool "Extend builtin kernel arguments with bootloader arguments"
3080endchoice
3081
3082endmenu
3083
3084config LOCKDEP_SUPPORT
3085	bool
3086	default y
3087
3088config STACKTRACE_SUPPORT
3089	bool
3090	default y
3091
3092config PGTABLE_LEVELS
3093	int
3094	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3095	default 3 if 64BIT && !PAGE_SIZE_64KB
3096	default 2
3097
3098config MIPS_AUTO_PFN_OFFSET
3099	bool
3100
3101menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3102
3103config PCI_DRIVERS_GENERIC
3104	select PCI_DOMAINS_GENERIC if PCI
3105	bool
3106
3107config PCI_DRIVERS_LEGACY
3108	def_bool !PCI_DRIVERS_GENERIC
3109	select NO_GENERIC_PCI_IOPORT_MAP
3110	select PCI_DOMAINS if PCI
3111
3112#
3113# ISA support is now enabled via select.  Too many systems still have the one
3114# or other ISA chip on the board that users don't know about so don't expect
3115# users to choose the right thing ...
3116#
3117config ISA
3118	bool
3119
3120config TC
3121	bool "TURBOchannel support"
3122	depends on MACH_DECSTATION
3123	help
3124	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3125	  processors.  TURBOchannel programming specifications are available
3126	  at:
3127	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3128	  and:
3129	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3130	  Linux driver support status is documented at:
3131	  <http://www.linux-mips.org/wiki/DECstation>
3132
3133config MMU
3134	bool
3135	default y
3136
3137config ARCH_MMAP_RND_BITS_MIN
3138	default 12 if 64BIT
3139	default 8
3140
3141config ARCH_MMAP_RND_BITS_MAX
3142	default 18 if 64BIT
3143	default 15
3144
3145config ARCH_MMAP_RND_COMPAT_BITS_MIN
3146	default 8
3147
3148config ARCH_MMAP_RND_COMPAT_BITS_MAX
3149	default 15
3150
3151config I8253
3152	bool
3153	select CLKSRC_I8253
3154	select CLKEVT_I8253
3155	select MIPS_EXTERNAL_TIMER
3156endmenu
3157
3158config TRAD_SIGNALS
3159	bool
3160
3161config MIPS32_COMPAT
3162	bool
3163
3164config COMPAT
3165	bool
3166
3167config SYSVIPC_COMPAT
3168	bool
3169
3170config MIPS32_O32
3171	bool "Kernel support for o32 binaries"
3172	depends on 64BIT
3173	select ARCH_WANT_OLD_COMPAT_IPC
3174	select COMPAT
3175	select MIPS32_COMPAT
3176	select SYSVIPC_COMPAT if SYSVIPC
3177	help
3178	  Select this option if you want to run o32 binaries.  These are pure
3179	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3180	  existing binaries are in this format.
3181
3182	  If unsure, say Y.
3183
3184config MIPS32_N32
3185	bool "Kernel support for n32 binaries"
3186	depends on 64BIT
3187	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3188	select COMPAT
3189	select MIPS32_COMPAT
3190	select SYSVIPC_COMPAT if SYSVIPC
3191	help
3192	  Select this option if you want to run n32 binaries.  These are
3193	  64-bit binaries using 32-bit quantities for addressing and certain
3194	  data that would normally be 64-bit.  They are used in special
3195	  cases.
3196
3197	  If unsure, say N.
3198
3199menu "Power management options"
3200
3201config ARCH_HIBERNATION_POSSIBLE
3202	def_bool y
3203	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3204
3205config ARCH_SUSPEND_POSSIBLE
3206	def_bool y
3207	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3208
3209source "kernel/power/Kconfig"
3210
3211endmenu
3212
3213config MIPS_EXTERNAL_TIMER
3214	bool
3215
3216menu "CPU Power Management"
3217
3218if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3219source "drivers/cpufreq/Kconfig"
3220endif
3221
3222source "drivers/cpuidle/Kconfig"
3223
3224endmenu
3225
3226source "arch/mips/kvm/Kconfig"
3227
3228source "arch/mips/vdso/Kconfig"
3229