xref: /openbmc/linux/arch/mips/Kconfig (revision 5e2421ce)
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_GETTIMEOFDAY
36	select GENERIC_IOMAP
37	select GENERIC_IRQ_PROBE
38	select GENERIC_IRQ_SHOW
39	select GENERIC_ISA_DMA if EISA
40	select GENERIC_LIB_ASHLDI3
41	select GENERIC_LIB_ASHRDI3
42	select GENERIC_LIB_CMPDI2
43	select GENERIC_LIB_LSHRDI3
44	select GENERIC_LIB_UCMPDI2
45	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
46	select GENERIC_SMP_IDLE_THREAD
47	select GENERIC_TIME_VSYSCALL
48	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
49	select HAVE_ARCH_COMPILER_H
50	select HAVE_ARCH_JUMP_LABEL
51	select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
52	select HAVE_ARCH_MMAP_RND_BITS if MMU
53	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
54	select HAVE_ARCH_SECCOMP_FILTER
55	select HAVE_ARCH_TRACEHOOK
56	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
57	select HAVE_ASM_MODVERSIONS
58	select HAVE_CONTEXT_TRACKING
59	select HAVE_TIF_NOHZ
60	select HAVE_C_RECORDMCOUNT
61	select HAVE_DEBUG_KMEMLEAK
62	select HAVE_DEBUG_STACKOVERFLOW
63	select HAVE_DMA_CONTIGUOUS
64	select HAVE_DYNAMIC_FTRACE
65	select HAVE_EBPF_JIT if !CPU_MICROMIPS && \
66				!CPU_DADDI_WORKAROUNDS && \
67				!CPU_R4000_WORKAROUNDS && \
68				!CPU_R4400_WORKAROUNDS
69	select HAVE_EXIT_THREAD
70	select HAVE_FAST_GUP
71	select HAVE_FTRACE_MCOUNT_RECORD
72	select HAVE_FUNCTION_GRAPH_TRACER
73	select HAVE_FUNCTION_TRACER
74	select HAVE_GCC_PLUGINS
75	select HAVE_GENERIC_VDSO
76	select HAVE_IOREMAP_PROT
77	select HAVE_IRQ_EXIT_ON_IRQ_STACK
78	select HAVE_IRQ_TIME_ACCOUNTING
79	select HAVE_KPROBES
80	select HAVE_KRETPROBES
81	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
82	select HAVE_MOD_ARCH_SPECIFIC
83	select HAVE_NMI
84	select HAVE_PERF_EVENTS
85	select HAVE_PERF_REGS
86	select HAVE_PERF_USER_STACK_DUMP
87	select HAVE_REGS_AND_STACK_ACCESS_API
88	select HAVE_RSEQ
89	select HAVE_SPARSE_SYSCALL_NR
90	select HAVE_STACKPROTECTOR
91	select HAVE_SYSCALL_TRACEPOINTS
92	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
93	select IRQ_FORCED_THREADING
94	select ISA if EISA
95	select MODULES_USE_ELF_REL if MODULES
96	select MODULES_USE_ELF_RELA if MODULES && 64BIT
97	select PERF_USE_VMALLOC
98	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
99	select RTC_LIB
100	select SYSCTL_EXCEPTION_TRACE
101	select TRACE_IRQFLAGS_SUPPORT
102	select VIRT_TO_BUS
103	select ARCH_HAS_ELFCORE_COMPAT
104
105config MIPS_FIXUP_BIGPHYS_ADDR
106	bool
107
108config MIPS_GENERIC
109	bool
110
111config MACH_INGENIC
112	bool
113	select SYS_SUPPORTS_32BIT_KERNEL
114	select SYS_SUPPORTS_LITTLE_ENDIAN
115	select SYS_SUPPORTS_ZBOOT
116	select DMA_NONCOHERENT
117	select ARCH_HAS_SYNC_DMA_FOR_CPU
118	select IRQ_MIPS_CPU
119	select PINCTRL
120	select GPIOLIB
121	select COMMON_CLK
122	select GENERIC_IRQ_CHIP
123	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
124	select USE_OF
125	select CPU_SUPPORTS_CPUFREQ
126	select MIPS_EXTERNAL_TIMER
127
128menu "Machine selection"
129
130choice
131	prompt "System type"
132	default MIPS_GENERIC_KERNEL
133
134config MIPS_GENERIC_KERNEL
135	bool "Generic board-agnostic MIPS kernel"
136	select ARCH_HAS_SETUP_DMA_OPS
137	select MIPS_GENERIC
138	select BOOT_RAW
139	select BUILTIN_DTB
140	select CEVT_R4K
141	select CLKSRC_MIPS_GIC
142	select COMMON_CLK
143	select CPU_MIPSR2_IRQ_EI
144	select CPU_MIPSR2_IRQ_VI
145	select CSRC_R4K
146	select DMA_NONCOHERENT
147	select HAVE_PCI
148	select IRQ_MIPS_CPU
149	select MIPS_AUTO_PFN_OFFSET
150	select MIPS_CPU_SCACHE
151	select MIPS_GIC
152	select MIPS_L1_CACHE_SHIFT_7
153	select NO_EXCEPT_FILL
154	select PCI_DRIVERS_GENERIC
155	select SMP_UP if SMP
156	select SWAP_IO_SPACE
157	select SYS_HAS_CPU_MIPS32_R1
158	select SYS_HAS_CPU_MIPS32_R2
159	select SYS_HAS_CPU_MIPS32_R6
160	select SYS_HAS_CPU_MIPS64_R1
161	select SYS_HAS_CPU_MIPS64_R2
162	select SYS_HAS_CPU_MIPS64_R6
163	select SYS_SUPPORTS_32BIT_KERNEL
164	select SYS_SUPPORTS_64BIT_KERNEL
165	select SYS_SUPPORTS_BIG_ENDIAN
166	select SYS_SUPPORTS_HIGHMEM
167	select SYS_SUPPORTS_LITTLE_ENDIAN
168	select SYS_SUPPORTS_MICROMIPS
169	select SYS_SUPPORTS_MIPS16
170	select SYS_SUPPORTS_MIPS_CPS
171	select SYS_SUPPORTS_MULTITHREADING
172	select SYS_SUPPORTS_RELOCATABLE
173	select SYS_SUPPORTS_SMARTMIPS
174	select SYS_SUPPORTS_ZBOOT
175	select UHI_BOOT
176	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
177	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
178	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
179	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
180	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
181	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
182	select USE_OF
183	help
184	  Select this to build a kernel which aims to support multiple boards,
185	  generally using a flattened device tree passed from the bootloader
186	  using the boot protocol defined in the UHI (Unified Hosting
187	  Interface) specification.
188
189config MIPS_ALCHEMY
190	bool "Alchemy processor based machines"
191	select PHYS_ADDR_T_64BIT
192	select CEVT_R4K
193	select CSRC_R4K
194	select IRQ_MIPS_CPU
195	select DMA_NONCOHERENT		# Au1000,1500,1100 aren't, rest is
196	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
197	select SYS_HAS_CPU_MIPS32_R1
198	select SYS_SUPPORTS_32BIT_KERNEL
199	select SYS_SUPPORTS_APM_EMULATION
200	select GPIOLIB
201	select SYS_SUPPORTS_ZBOOT
202	select COMMON_CLK
203
204config AR7
205	bool "Texas Instruments AR7"
206	select BOOT_ELF32
207	select COMMON_CLK
208	select DMA_NONCOHERENT
209	select CEVT_R4K
210	select CSRC_R4K
211	select IRQ_MIPS_CPU
212	select NO_EXCEPT_FILL
213	select SWAP_IO_SPACE
214	select SYS_HAS_CPU_MIPS32_R1
215	select SYS_HAS_EARLY_PRINTK
216	select SYS_SUPPORTS_32BIT_KERNEL
217	select SYS_SUPPORTS_LITTLE_ENDIAN
218	select SYS_SUPPORTS_MIPS16
219	select SYS_SUPPORTS_ZBOOT_UART16550
220	select GPIOLIB
221	select VLYNQ
222	help
223	  Support for the Texas Instruments AR7 System-on-a-Chip
224	  family: TNETD7100, 7200 and 7300.
225
226config ATH25
227	bool "Atheros AR231x/AR531x SoC support"
228	select CEVT_R4K
229	select CSRC_R4K
230	select DMA_NONCOHERENT
231	select IRQ_MIPS_CPU
232	select IRQ_DOMAIN
233	select SYS_HAS_CPU_MIPS32_R1
234	select SYS_SUPPORTS_BIG_ENDIAN
235	select SYS_SUPPORTS_32BIT_KERNEL
236	select SYS_HAS_EARLY_PRINTK
237	help
238	  Support for Atheros AR231x and Atheros AR531x based boards
239
240config ATH79
241	bool "Atheros AR71XX/AR724X/AR913X based boards"
242	select ARCH_HAS_RESET_CONTROLLER
243	select BOOT_RAW
244	select CEVT_R4K
245	select CSRC_R4K
246	select DMA_NONCOHERENT
247	select GPIOLIB
248	select PINCTRL
249	select COMMON_CLK
250	select IRQ_MIPS_CPU
251	select SYS_HAS_CPU_MIPS32_R2
252	select SYS_HAS_EARLY_PRINTK
253	select SYS_SUPPORTS_32BIT_KERNEL
254	select SYS_SUPPORTS_BIG_ENDIAN
255	select SYS_SUPPORTS_MIPS16
256	select SYS_SUPPORTS_ZBOOT_UART_PROM
257	select USE_OF
258	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
259	help
260	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
261
262config BMIPS_GENERIC
263	bool "Broadcom Generic BMIPS kernel"
264	select ARCH_HAS_RESET_CONTROLLER
265	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
266	select BOOT_RAW
267	select NO_EXCEPT_FILL
268	select USE_OF
269	select CEVT_R4K
270	select CSRC_R4K
271	select SYNC_R4K
272	select COMMON_CLK
273	select BCM6345_L1_IRQ
274	select BCM7038_L1_IRQ
275	select BCM7120_L2_IRQ
276	select BRCMSTB_L2_IRQ
277	select IRQ_MIPS_CPU
278	select DMA_NONCOHERENT
279	select SYS_SUPPORTS_32BIT_KERNEL
280	select SYS_SUPPORTS_LITTLE_ENDIAN
281	select SYS_SUPPORTS_BIG_ENDIAN
282	select SYS_SUPPORTS_HIGHMEM
283	select SYS_HAS_CPU_BMIPS32_3300
284	select SYS_HAS_CPU_BMIPS4350
285	select SYS_HAS_CPU_BMIPS4380
286	select SYS_HAS_CPU_BMIPS5000
287	select SWAP_IO_SPACE
288	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
289	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
290	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
291	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
292	select HARDIRQS_SW_RESEND
293	select HAVE_PCI
294	select PCI_DRIVERS_GENERIC
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 SYS_HAS_CPU_BMIPS32_3300
337	select SYS_HAS_CPU_BMIPS4350
338	select SYS_HAS_CPU_BMIPS4380
339	select SWAP_IO_SPACE
340	select GPIOLIB
341	select MIPS_L1_CACHE_SHIFT_4
342	select HAVE_LEGACY_CLK
343	help
344	  Support for BCM63XX based boards
345
346config MIPS_COBALT
347	bool "Cobalt Server"
348	select CEVT_R4K
349	select CSRC_R4K
350	select CEVT_GT641XX
351	select DMA_NONCOHERENT
352	select FORCE_PCI
353	select I8253
354	select I8259
355	select IRQ_MIPS_CPU
356	select IRQ_GT641XX
357	select PCI_GT64XXX_PCI0
358	select SYS_HAS_CPU_NEVADA
359	select SYS_HAS_EARLY_PRINTK
360	select SYS_SUPPORTS_32BIT_KERNEL
361	select SYS_SUPPORTS_64BIT_KERNEL
362	select SYS_SUPPORTS_LITTLE_ENDIAN
363	select USE_GENERIC_EARLY_PRINTK_8250
364
365config MACH_DECSTATION
366	bool "DECstations"
367	select BOOT_ELF32
368	select CEVT_DS1287
369	select CEVT_R4K if CPU_R4X00
370	select CSRC_IOASIC
371	select CSRC_R4K if CPU_R4X00
372	select CPU_DADDI_WORKAROUNDS if 64BIT
373	select CPU_R4000_WORKAROUNDS if 64BIT
374	select CPU_R4400_WORKAROUNDS if 64BIT
375	select DMA_NONCOHERENT
376	select NO_IOPORT_MAP
377	select IRQ_MIPS_CPU
378	select SYS_HAS_CPU_R3000
379	select SYS_HAS_CPU_R4X00
380	select SYS_SUPPORTS_32BIT_KERNEL
381	select SYS_SUPPORTS_64BIT_KERNEL
382	select SYS_SUPPORTS_LITTLE_ENDIAN
383	select SYS_SUPPORTS_128HZ
384	select SYS_SUPPORTS_256HZ
385	select SYS_SUPPORTS_1024HZ
386	select MIPS_L1_CACHE_SHIFT_4
387	help
388	  This enables support for DEC's MIPS based workstations.  For details
389	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
390	  DECstation porting pages on <http://decstation.unix-ag.org/>.
391
392	  If you have one of the following DECstation Models you definitely
393	  want to choose R4xx0 for the CPU Type:
394
395		DECstation 5000/50
396		DECstation 5000/150
397		DECstation 5000/260
398		DECsystem 5900/260
399
400	  otherwise choose R3000.
401
402config MACH_JAZZ
403	bool "Jazz family of machines"
404	select ARC_MEMORY
405	select ARC_PROMLIB
406	select ARCH_MIGHT_HAVE_PC_PARPORT
407	select ARCH_MIGHT_HAVE_PC_SERIO
408	select DMA_OPS
409	select FW_ARC
410	select FW_ARC32
411	select ARCH_MAY_HAVE_PC_FDC
412	select CEVT_R4K
413	select CSRC_R4K
414	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
415	select GENERIC_ISA_DMA
416	select HAVE_PCSPKR_PLATFORM
417	select IRQ_MIPS_CPU
418	select I8253
419	select I8259
420	select ISA
421	select SYS_HAS_CPU_R4X00
422	select SYS_SUPPORTS_32BIT_KERNEL
423	select SYS_SUPPORTS_64BIT_KERNEL
424	select SYS_SUPPORTS_100HZ
425	select SYS_SUPPORTS_LITTLE_ENDIAN
426	help
427	  This a family of machines based on the MIPS R4030 chipset which was
428	  used by several vendors to build RISC/os and Windows NT workstations.
429	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
430	  Olivetti M700-10 workstations.
431
432config MACH_INGENIC_SOC
433	bool "Ingenic SoC based machines"
434	select MIPS_GENERIC
435	select MACH_INGENIC
436	select SYS_SUPPORTS_ZBOOT_UART16550
437	select CPU_SUPPORTS_CPUFREQ
438	select MIPS_EXTERNAL_TIMER
439
440config LANTIQ
441	bool "Lantiq based platforms"
442	select DMA_NONCOHERENT
443	select IRQ_MIPS_CPU
444	select CEVT_R4K
445	select CSRC_R4K
446	select SYS_HAS_CPU_MIPS32_R1
447	select SYS_HAS_CPU_MIPS32_R2
448	select SYS_SUPPORTS_BIG_ENDIAN
449	select SYS_SUPPORTS_32BIT_KERNEL
450	select SYS_SUPPORTS_MIPS16
451	select SYS_SUPPORTS_MULTITHREADING
452	select SYS_SUPPORTS_VPE_LOADER
453	select SYS_HAS_EARLY_PRINTK
454	select GPIOLIB
455	select SWAP_IO_SPACE
456	select BOOT_RAW
457	select HAVE_LEGACY_CLK
458	select USE_OF
459	select PINCTRL
460	select PINCTRL_LANTIQ
461	select ARCH_HAS_RESET_CONTROLLER
462	select RESET_CONTROLLER
463
464config MACH_LOONGSON32
465	bool "Loongson 32-bit family of machines"
466	select SYS_SUPPORTS_ZBOOT
467	help
468	  This enables support for the Loongson-1 family of machines.
469
470	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
471	  the Institute of Computing Technology (ICT), Chinese Academy of
472	  Sciences (CAS).
473
474config MACH_LOONGSON2EF
475	bool "Loongson-2E/F family of machines"
476	select SYS_SUPPORTS_ZBOOT
477	help
478	  This enables the support of early Loongson-2E/F family of machines.
479
480config MACH_LOONGSON64
481	bool "Loongson 64-bit family of machines"
482	select ARCH_SPARSEMEM_ENABLE
483	select ARCH_MIGHT_HAVE_PC_PARPORT
484	select ARCH_MIGHT_HAVE_PC_SERIO
485	select GENERIC_ISA_DMA_SUPPORT_BROKEN
486	select BOOT_ELF32
487	select BOARD_SCACHE
488	select CSRC_R4K
489	select CEVT_R4K
490	select CPU_HAS_WB
491	select FORCE_PCI
492	select ISA
493	select I8259
494	select IRQ_MIPS_CPU
495	select NO_EXCEPT_FILL
496	select NR_CPUS_DEFAULT_64
497	select USE_GENERIC_EARLY_PRINTK_8250
498	select PCI_DRIVERS_GENERIC
499	select SYS_HAS_CPU_LOONGSON64
500	select SYS_HAS_EARLY_PRINTK
501	select SYS_SUPPORTS_SMP
502	select SYS_SUPPORTS_HOTPLUG_CPU
503	select SYS_SUPPORTS_NUMA
504	select SYS_SUPPORTS_64BIT_KERNEL
505	select SYS_SUPPORTS_HIGHMEM
506	select SYS_SUPPORTS_LITTLE_ENDIAN
507	select SYS_SUPPORTS_ZBOOT
508	select SYS_SUPPORTS_RELOCATABLE
509	select ZONE_DMA32
510	select COMMON_CLK
511	select USE_OF
512	select BUILTIN_DTB
513	select PCI_HOST_GENERIC
514	help
515	  This enables the support of Loongson-2/3 family of machines.
516
517	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
518	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
519	  and Loongson-2F which will be removed), developed by the Institute
520	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
521
522config MIPS_MALTA
523	bool "MIPS Malta board"
524	select ARCH_MAY_HAVE_PC_FDC
525	select ARCH_MIGHT_HAVE_PC_PARPORT
526	select ARCH_MIGHT_HAVE_PC_SERIO
527	select BOOT_ELF32
528	select BOOT_RAW
529	select BUILTIN_DTB
530	select CEVT_R4K
531	select CLKSRC_MIPS_GIC
532	select COMMON_CLK
533	select CSRC_R4K
534	select DMA_NONCOHERENT
535	select GENERIC_ISA_DMA
536	select HAVE_PCSPKR_PLATFORM
537	select HAVE_PCI
538	select I8253
539	select I8259
540	select IRQ_MIPS_CPU
541	select MIPS_BONITO64
542	select MIPS_CPU_SCACHE
543	select MIPS_GIC
544	select MIPS_L1_CACHE_SHIFT_6
545	select MIPS_MSC
546	select PCI_GT64XXX_PCI0
547	select SMP_UP if SMP
548	select SWAP_IO_SPACE
549	select SYS_HAS_CPU_MIPS32_R1
550	select SYS_HAS_CPU_MIPS32_R2
551	select SYS_HAS_CPU_MIPS32_R3_5
552	select SYS_HAS_CPU_MIPS32_R5
553	select SYS_HAS_CPU_MIPS32_R6
554	select SYS_HAS_CPU_MIPS64_R1
555	select SYS_HAS_CPU_MIPS64_R2
556	select SYS_HAS_CPU_MIPS64_R6
557	select SYS_HAS_CPU_NEVADA
558	select SYS_HAS_CPU_RM7000
559	select SYS_SUPPORTS_32BIT_KERNEL
560	select SYS_SUPPORTS_64BIT_KERNEL
561	select SYS_SUPPORTS_BIG_ENDIAN
562	select SYS_SUPPORTS_HIGHMEM
563	select SYS_SUPPORTS_LITTLE_ENDIAN
564	select SYS_SUPPORTS_MICROMIPS
565	select SYS_SUPPORTS_MIPS16
566	select SYS_SUPPORTS_MIPS_CMP
567	select SYS_SUPPORTS_MIPS_CPS
568	select SYS_SUPPORTS_MULTITHREADING
569	select SYS_SUPPORTS_RELOCATABLE
570	select SYS_SUPPORTS_SMARTMIPS
571	select SYS_SUPPORTS_VPE_LOADER
572	select SYS_SUPPORTS_ZBOOT
573	select USE_OF
574	select WAR_ICACHE_REFILLS
575	select ZONE_DMA32 if 64BIT
576	help
577	  This enables support for the MIPS Technologies Malta evaluation
578	  board.
579
580config MACH_PIC32
581	bool "Microchip PIC32 Family"
582	help
583	  This enables support for the Microchip PIC32 family of platforms.
584
585	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
586	  microcontrollers.
587
588config MACH_VR41XX
589	bool "NEC VR4100 series based machines"
590	select CEVT_R4K
591	select CSRC_R4K
592	select SYS_HAS_CPU_VR41XX
593	select SYS_SUPPORTS_MIPS16
594	select GPIOLIB
595
596config MACH_NINTENDO64
597	bool "Nintendo 64 console"
598	select CEVT_R4K
599	select CSRC_R4K
600	select SYS_HAS_CPU_R4300
601	select SYS_SUPPORTS_BIG_ENDIAN
602	select SYS_SUPPORTS_ZBOOT
603	select SYS_SUPPORTS_32BIT_KERNEL
604	select SYS_SUPPORTS_64BIT_KERNEL
605	select DMA_NONCOHERENT
606	select IRQ_MIPS_CPU
607
608config RALINK
609	bool "Ralink based machines"
610	select CEVT_R4K
611	select COMMON_CLK
612	select CSRC_R4K
613	select BOOT_RAW
614	select DMA_NONCOHERENT
615	select IRQ_MIPS_CPU
616	select USE_OF
617	select SYS_HAS_CPU_MIPS32_R1
618	select SYS_HAS_CPU_MIPS32_R2
619	select SYS_SUPPORTS_32BIT_KERNEL
620	select SYS_SUPPORTS_LITTLE_ENDIAN
621	select SYS_SUPPORTS_MIPS16
622	select SYS_SUPPORTS_ZBOOT
623	select SYS_HAS_EARLY_PRINTK
624	select ARCH_HAS_RESET_CONTROLLER
625	select RESET_CONTROLLER
626
627config MACH_REALTEK_RTL
628	bool "Realtek RTL838x/RTL839x based machines"
629	select MIPS_GENERIC
630	select DMA_NONCOHERENT
631	select IRQ_MIPS_CPU
632	select CSRC_R4K
633	select CEVT_R4K
634	select SYS_HAS_CPU_MIPS32_R1
635	select SYS_HAS_CPU_MIPS32_R2
636	select SYS_SUPPORTS_BIG_ENDIAN
637	select SYS_SUPPORTS_32BIT_KERNEL
638	select SYS_SUPPORTS_MIPS16
639	select SYS_SUPPORTS_MULTITHREADING
640	select SYS_SUPPORTS_VPE_LOADER
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 PCI_DRIVERS_GENERIC
764	select PCI_XTALK_BRIDGE
765	select SYS_HAS_EARLY_PRINTK
766	select SYS_HAS_CPU_R10000
767	select SYS_SUPPORTS_64BIT_KERNEL
768	select SYS_SUPPORTS_BIG_ENDIAN
769	select SYS_SUPPORTS_SMP
770	select WAR_R10000_LLSC
771	select MIPS_L1_CACHE_SHIFT_7
772	select ARC_MEMORY
773	help
774	  These are the SGI Octane and Octane2 graphics workstations.  To
775	  compile a Linux kernel that runs on these, say Y here.
776
777config SGI_IP32
778	bool "SGI IP32 (O2)"
779	select ARC_MEMORY
780	select ARC_PROMLIB
781	select ARCH_HAS_PHYS_TO_DMA
782	select FW_ARC
783	select FW_ARC32
784	select BOOT_ELF32
785	select CEVT_R4K
786	select CSRC_R4K
787	select DMA_NONCOHERENT
788	select HAVE_PCI
789	select IRQ_MIPS_CPU
790	select R5000_CPU_SCACHE
791	select RM7000_CPU_SCACHE
792	select SYS_HAS_CPU_R5000
793	select SYS_HAS_CPU_R10000 if BROKEN
794	select SYS_HAS_CPU_RM7000
795	select SYS_HAS_CPU_NEVADA
796	select SYS_SUPPORTS_64BIT_KERNEL
797	select SYS_SUPPORTS_BIG_ENDIAN
798	select WAR_ICACHE_REFILLS
799	help
800	  If you want this kernel to run on SGI O2 workstation, say Y here.
801
802config SIBYTE_CRHINE
803	bool "Sibyte BCM91120C-CRhine"
804	select BOOT_ELF32
805	select SIBYTE_BCM1120
806	select SWAP_IO_SPACE
807	select SYS_HAS_CPU_SB1
808	select SYS_SUPPORTS_BIG_ENDIAN
809	select SYS_SUPPORTS_LITTLE_ENDIAN
810
811config SIBYTE_CARMEL
812	bool "Sibyte BCM91120x-Carmel"
813	select BOOT_ELF32
814	select SIBYTE_BCM1120
815	select SWAP_IO_SPACE
816	select SYS_HAS_CPU_SB1
817	select SYS_SUPPORTS_BIG_ENDIAN
818	select SYS_SUPPORTS_LITTLE_ENDIAN
819
820config SIBYTE_CRHONE
821	bool "Sibyte BCM91125C-CRhone"
822	select BOOT_ELF32
823	select SIBYTE_BCM1125
824	select SWAP_IO_SPACE
825	select SYS_HAS_CPU_SB1
826	select SYS_SUPPORTS_BIG_ENDIAN
827	select SYS_SUPPORTS_HIGHMEM
828	select SYS_SUPPORTS_LITTLE_ENDIAN
829
830config SIBYTE_RHONE
831	bool "Sibyte BCM91125E-Rhone"
832	select BOOT_ELF32
833	select SIBYTE_BCM1125H
834	select SWAP_IO_SPACE
835	select SYS_HAS_CPU_SB1
836	select SYS_SUPPORTS_BIG_ENDIAN
837	select SYS_SUPPORTS_LITTLE_ENDIAN
838
839config SIBYTE_SWARM
840	bool "Sibyte BCM91250A-SWARM"
841	select BOOT_ELF32
842	select HAVE_PATA_PLATFORM
843	select SIBYTE_SB1250
844	select SWAP_IO_SPACE
845	select SYS_HAS_CPU_SB1
846	select SYS_SUPPORTS_BIG_ENDIAN
847	select SYS_SUPPORTS_HIGHMEM
848	select SYS_SUPPORTS_LITTLE_ENDIAN
849	select ZONE_DMA32 if 64BIT
850	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
851
852config SIBYTE_LITTLESUR
853	bool "Sibyte BCM91250C2-LittleSur"
854	select BOOT_ELF32
855	select HAVE_PATA_PLATFORM
856	select SIBYTE_SB1250
857	select SWAP_IO_SPACE
858	select SYS_HAS_CPU_SB1
859	select SYS_SUPPORTS_BIG_ENDIAN
860	select SYS_SUPPORTS_HIGHMEM
861	select SYS_SUPPORTS_LITTLE_ENDIAN
862	select ZONE_DMA32 if 64BIT
863
864config SIBYTE_SENTOSA
865	bool "Sibyte BCM91250E-Sentosa"
866	select BOOT_ELF32
867	select SIBYTE_SB1250
868	select SWAP_IO_SPACE
869	select SYS_HAS_CPU_SB1
870	select SYS_SUPPORTS_BIG_ENDIAN
871	select SYS_SUPPORTS_LITTLE_ENDIAN
872	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
873
874config SIBYTE_BIGSUR
875	bool "Sibyte BCM91480B-BigSur"
876	select BOOT_ELF32
877	select NR_CPUS_DEFAULT_4
878	select SIBYTE_BCM1x80
879	select SWAP_IO_SPACE
880	select SYS_HAS_CPU_SB1
881	select SYS_SUPPORTS_BIG_ENDIAN
882	select SYS_SUPPORTS_HIGHMEM
883	select SYS_SUPPORTS_LITTLE_ENDIAN
884	select ZONE_DMA32 if 64BIT
885	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
886
887config SNI_RM
888	bool "SNI RM200/300/400"
889	select ARC_MEMORY
890	select ARC_PROMLIB
891	select FW_ARC if CPU_LITTLE_ENDIAN
892	select FW_ARC32 if CPU_LITTLE_ENDIAN
893	select FW_SNIPROM if CPU_BIG_ENDIAN
894	select ARCH_MAY_HAVE_PC_FDC
895	select ARCH_MIGHT_HAVE_PC_PARPORT
896	select ARCH_MIGHT_HAVE_PC_SERIO
897	select BOOT_ELF32
898	select CEVT_R4K
899	select CSRC_R4K
900	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
901	select DMA_NONCOHERENT
902	select GENERIC_ISA_DMA
903	select HAVE_EISA
904	select HAVE_PCSPKR_PLATFORM
905	select HAVE_PCI
906	select IRQ_MIPS_CPU
907	select I8253
908	select I8259
909	select ISA
910	select MIPS_L1_CACHE_SHIFT_6
911	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
912	select SYS_HAS_CPU_R4X00
913	select SYS_HAS_CPU_R5000
914	select SYS_HAS_CPU_R10000
915	select R5000_CPU_SCACHE
916	select SYS_HAS_EARLY_PRINTK
917	select SYS_SUPPORTS_32BIT_KERNEL
918	select SYS_SUPPORTS_64BIT_KERNEL
919	select SYS_SUPPORTS_BIG_ENDIAN
920	select SYS_SUPPORTS_HIGHMEM
921	select SYS_SUPPORTS_LITTLE_ENDIAN
922	select WAR_R4600_V2_HIT_CACHEOP
923	help
924	  The SNI RM200/300/400 are MIPS-based machines manufactured by
925	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
926	  Technology and now in turn merged with Fujitsu.  Say Y here to
927	  support this machine type.
928
929config MACH_TX39XX
930	bool "Toshiba TX39 series based machines"
931
932config MACH_TX49XX
933	bool "Toshiba TX49 series based machines"
934	select WAR_TX49XX_ICACHE_INDEX_INV
935
936config MIKROTIK_RB532
937	bool "Mikrotik RB532 boards"
938	select CEVT_R4K
939	select CSRC_R4K
940	select DMA_NONCOHERENT
941	select HAVE_PCI
942	select IRQ_MIPS_CPU
943	select SYS_HAS_CPU_MIPS32_R1
944	select SYS_SUPPORTS_32BIT_KERNEL
945	select SYS_SUPPORTS_LITTLE_ENDIAN
946	select SWAP_IO_SPACE
947	select BOOT_RAW
948	select GPIOLIB
949	select MIPS_L1_CACHE_SHIFT_4
950	help
951	  Support the Mikrotik(tm) RouterBoard 532 series,
952	  based on the IDT RC32434 SoC.
953
954config CAVIUM_OCTEON_SOC
955	bool "Cavium Networks Octeon SoC based boards"
956	select CEVT_R4K
957	select ARCH_HAS_PHYS_TO_DMA
958	select HAVE_RAPIDIO
959	select PHYS_ADDR_T_64BIT
960	select SYS_SUPPORTS_64BIT_KERNEL
961	select SYS_SUPPORTS_BIG_ENDIAN
962	select EDAC_SUPPORT
963	select EDAC_ATOMIC_SCRUB
964	select SYS_SUPPORTS_LITTLE_ENDIAN
965	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
966	select SYS_HAS_EARLY_PRINTK
967	select SYS_HAS_CPU_CAVIUM_OCTEON
968	select HAVE_PCI
969	select HAVE_PLAT_DELAY
970	select HAVE_PLAT_FW_INIT_CMDLINE
971	select HAVE_PLAT_MEMCPY
972	select ZONE_DMA32
973	select GPIOLIB
974	select USE_OF
975	select ARCH_SPARSEMEM_ENABLE
976	select SYS_SUPPORTS_SMP
977	select NR_CPUS_DEFAULT_64
978	select MIPS_NR_CPU_NR_MAP_1024
979	select BUILTIN_DTB
980	select MTD
981	select MTD_COMPLEX_MAPPINGS
982	select SWIOTLB
983	select SYS_SUPPORTS_RELOCATABLE
984	help
985	  This option supports all of the Octeon reference boards from Cavium
986	  Networks. It builds a kernel that dynamically determines the Octeon
987	  CPU type and supports all known board reference implementations.
988	  Some of the supported boards are:
989		EBT3000
990		EBH3000
991		EBH3100
992		Thunder
993		Kodama
994		Hikari
995	  Say Y here for most Octeon reference boards.
996
997endchoice
998
999source "arch/mips/alchemy/Kconfig"
1000source "arch/mips/ath25/Kconfig"
1001source "arch/mips/ath79/Kconfig"
1002source "arch/mips/bcm47xx/Kconfig"
1003source "arch/mips/bcm63xx/Kconfig"
1004source "arch/mips/bmips/Kconfig"
1005source "arch/mips/generic/Kconfig"
1006source "arch/mips/ingenic/Kconfig"
1007source "arch/mips/jazz/Kconfig"
1008source "arch/mips/lantiq/Kconfig"
1009source "arch/mips/pic32/Kconfig"
1010source "arch/mips/ralink/Kconfig"
1011source "arch/mips/sgi-ip27/Kconfig"
1012source "arch/mips/sibyte/Kconfig"
1013source "arch/mips/txx9/Kconfig"
1014source "arch/mips/vr41xx/Kconfig"
1015source "arch/mips/cavium-octeon/Kconfig"
1016source "arch/mips/loongson2ef/Kconfig"
1017source "arch/mips/loongson32/Kconfig"
1018source "arch/mips/loongson64/Kconfig"
1019
1020endmenu
1021
1022config GENERIC_HWEIGHT
1023	bool
1024	default y
1025
1026config GENERIC_CALIBRATE_DELAY
1027	bool
1028	default y
1029
1030config SCHED_OMIT_FRAME_POINTER
1031	bool
1032	default y
1033
1034#
1035# Select some configuration options automatically based on user selections.
1036#
1037config FW_ARC
1038	bool
1039
1040config ARCH_MAY_HAVE_PC_FDC
1041	bool
1042
1043config BOOT_RAW
1044	bool
1045
1046config CEVT_BCM1480
1047	bool
1048
1049config CEVT_DS1287
1050	bool
1051
1052config CEVT_GT641XX
1053	bool
1054
1055config CEVT_R4K
1056	bool
1057
1058config CEVT_SB1250
1059	bool
1060
1061config CEVT_TXX9
1062	bool
1063
1064config CSRC_BCM1480
1065	bool
1066
1067config CSRC_IOASIC
1068	bool
1069
1070config CSRC_R4K
1071	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1072	bool
1073
1074config CSRC_SB1250
1075	bool
1076
1077config MIPS_CLOCK_VSYSCALL
1078	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1079
1080config GPIO_TXX9
1081	select GPIOLIB
1082	bool
1083
1084config FW_CFE
1085	bool
1086
1087config ARCH_SUPPORTS_UPROBES
1088	bool
1089
1090config DMA_PERDEV_COHERENT
1091	bool
1092	select ARCH_HAS_SETUP_DMA_OPS
1093	select DMA_NONCOHERENT
1094
1095config DMA_NONCOHERENT
1096	bool
1097	#
1098	# MIPS allows mixing "slightly different" Cacheability and Coherency
1099	# Attribute bits.  It is believed that the uncached access through
1100	# KSEG1 and the implementation specific "uncached accelerated" used
1101	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1102	# significant advantages.
1103	#
1104	select ARCH_HAS_DMA_WRITE_COMBINE
1105	select ARCH_HAS_DMA_PREP_COHERENT
1106	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1107	select ARCH_HAS_DMA_SET_UNCACHED
1108	select DMA_NONCOHERENT_MMAP
1109	select NEED_DMA_MAP_STATE
1110
1111config SYS_HAS_EARLY_PRINTK
1112	bool
1113
1114config SYS_SUPPORTS_HOTPLUG_CPU
1115	bool
1116
1117config MIPS_BONITO64
1118	bool
1119
1120config MIPS_MSC
1121	bool
1122
1123config SYNC_R4K
1124	bool
1125
1126config NO_IOPORT_MAP
1127	def_bool n
1128
1129config GENERIC_CSUM
1130	def_bool CPU_NO_LOAD_STORE_LR
1131
1132config GENERIC_ISA_DMA
1133	bool
1134	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1135	select ISA_DMA_API
1136
1137config GENERIC_ISA_DMA_SUPPORT_BROKEN
1138	bool
1139	select GENERIC_ISA_DMA
1140
1141config HAVE_PLAT_DELAY
1142	bool
1143
1144config HAVE_PLAT_FW_INIT_CMDLINE
1145	bool
1146
1147config HAVE_PLAT_MEMCPY
1148	bool
1149
1150config ISA_DMA_API
1151	bool
1152
1153config SYS_SUPPORTS_RELOCATABLE
1154	bool
1155	help
1156	  Selected if the platform supports relocating the kernel.
1157	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1158	  to allow access to command line and entropy sources.
1159
1160#
1161# Endianness selection.  Sufficiently obscure so many users don't know what to
1162# answer,so we try hard to limit the available choices.  Also the use of a
1163# choice statement should be more obvious to the user.
1164#
1165choice
1166	prompt "Endianness selection"
1167	help
1168	  Some MIPS machines can be configured for either little or big endian
1169	  byte order. These modes require different kernels and a different
1170	  Linux distribution.  In general there is one preferred byteorder for a
1171	  particular system but some systems are just as commonly used in the
1172	  one or the other endianness.
1173
1174config CPU_BIG_ENDIAN
1175	bool "Big endian"
1176	depends on SYS_SUPPORTS_BIG_ENDIAN
1177
1178config CPU_LITTLE_ENDIAN
1179	bool "Little endian"
1180	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1181
1182endchoice
1183
1184config EXPORT_UASM
1185	bool
1186
1187config SYS_SUPPORTS_APM_EMULATION
1188	bool
1189
1190config SYS_SUPPORTS_BIG_ENDIAN
1191	bool
1192
1193config SYS_SUPPORTS_LITTLE_ENDIAN
1194	bool
1195
1196config MIPS_HUGE_TLB_SUPPORT
1197	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1198
1199config IRQ_MSP_SLP
1200	bool
1201
1202config IRQ_MSP_CIC
1203	bool
1204
1205config IRQ_TXX9
1206	bool
1207
1208config IRQ_GT641XX
1209	bool
1210
1211config PCI_GT64XXX_PCI0
1212	bool
1213
1214config PCI_XTALK_BRIDGE
1215	bool
1216
1217config NO_EXCEPT_FILL
1218	bool
1219
1220config MIPS_SPRAM
1221	bool
1222
1223config SWAP_IO_SPACE
1224	bool
1225
1226config SGI_HAS_INDYDOG
1227	bool
1228
1229config SGI_HAS_HAL2
1230	bool
1231
1232config SGI_HAS_SEEQ
1233	bool
1234
1235config SGI_HAS_WD93
1236	bool
1237
1238config SGI_HAS_ZILOG
1239	bool
1240
1241config SGI_HAS_I8042
1242	bool
1243
1244config DEFAULT_SGI_PARTITION
1245	bool
1246
1247config FW_ARC32
1248	bool
1249
1250config FW_SNIPROM
1251	bool
1252
1253config BOOT_ELF32
1254	bool
1255
1256config MIPS_L1_CACHE_SHIFT_4
1257	bool
1258
1259config MIPS_L1_CACHE_SHIFT_5
1260	bool
1261
1262config MIPS_L1_CACHE_SHIFT_6
1263	bool
1264
1265config MIPS_L1_CACHE_SHIFT_7
1266	bool
1267
1268config MIPS_L1_CACHE_SHIFT
1269	int
1270	default "7" if MIPS_L1_CACHE_SHIFT_7
1271	default "6" if MIPS_L1_CACHE_SHIFT_6
1272	default "5" if MIPS_L1_CACHE_SHIFT_5
1273	default "4" if MIPS_L1_CACHE_SHIFT_4
1274	default "5"
1275
1276config ARC_CMDLINE_ONLY
1277	bool
1278
1279config ARC_CONSOLE
1280	bool "ARC console support"
1281	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1282
1283config ARC_MEMORY
1284	bool
1285
1286config ARC_PROMLIB
1287	bool
1288
1289config FW_ARC64
1290	bool
1291
1292config BOOT_ELF64
1293	bool
1294
1295menu "CPU selection"
1296
1297choice
1298	prompt "CPU type"
1299	default CPU_R4X00
1300
1301config CPU_LOONGSON64
1302	bool "Loongson 64-bit CPU"
1303	depends on SYS_HAS_CPU_LOONGSON64
1304	select ARCH_HAS_PHYS_TO_DMA
1305	select CPU_MIPSR2
1306	select CPU_HAS_PREFETCH
1307	select CPU_SUPPORTS_64BIT_KERNEL
1308	select CPU_SUPPORTS_HIGHMEM
1309	select CPU_SUPPORTS_HUGEPAGES
1310	select CPU_SUPPORTS_MSA
1311	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1312	select CPU_MIPSR2_IRQ_VI
1313	select WEAK_ORDERING
1314	select WEAK_REORDERING_BEYOND_LLSC
1315	select MIPS_ASID_BITS_VARIABLE
1316	select MIPS_PGD_C0_CONTEXT
1317	select MIPS_L1_CACHE_SHIFT_6
1318	select MIPS_FP_SUPPORT
1319	select GPIOLIB
1320	select SWIOTLB
1321	select HAVE_KVM
1322	help
1323		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1324		cores implements the MIPS64R2 instruction set with many extensions,
1325		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1326		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1327		Loongson-2E/2F is not covered here and will be removed in future.
1328
1329config LOONGSON3_ENHANCEMENT
1330	bool "New Loongson-3 CPU Enhancements"
1331	default n
1332	depends on CPU_LOONGSON64
1333	help
1334	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1335	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1336	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1337	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1338	  Fast TLB refill support, etc.
1339
1340	  This option enable those enhancements which are not probed at run
1341	  time. If you want a generic kernel to run on all Loongson 3 machines,
1342	  please say 'N' here. If you want a high-performance kernel to run on
1343	  new Loongson-3 machines only, please say 'Y' here.
1344
1345config CPU_LOONGSON3_WORKAROUNDS
1346	bool "Old Loongson-3 LLSC Workarounds"
1347	default y if SMP
1348	depends on CPU_LOONGSON64
1349	help
1350	  Loongson-3 processors have the llsc issues which require workarounds.
1351	  Without workarounds the system may hang unexpectedly.
1352
1353	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1354	  The workarounds have no significant side effect on them but may
1355	  decrease the performance of the system so this option should be
1356	  disabled unless the kernel is intended to be run on old systems.
1357
1358	  If unsure, please say Y.
1359
1360config CPU_LOONGSON3_CPUCFG_EMULATION
1361	bool "Emulate the CPUCFG instruction on older Loongson cores"
1362	default y
1363	depends on CPU_LOONGSON64
1364	help
1365	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1366	  userland to query CPU capabilities, much like CPUID on x86. This
1367	  option provides emulation of the instruction on older Loongson
1368	  cores, back to Loongson-3A1000.
1369
1370	  If unsure, please say Y.
1371
1372config CPU_LOONGSON2E
1373	bool "Loongson 2E"
1374	depends on SYS_HAS_CPU_LOONGSON2E
1375	select CPU_LOONGSON2EF
1376	help
1377	  The Loongson 2E processor implements the MIPS III instruction set
1378	  with many extensions.
1379
1380	  It has an internal FPGA northbridge, which is compatible to
1381	  bonito64.
1382
1383config CPU_LOONGSON2F
1384	bool "Loongson 2F"
1385	depends on SYS_HAS_CPU_LOONGSON2F
1386	select CPU_LOONGSON2EF
1387	select GPIOLIB
1388	help
1389	  The Loongson 2F processor implements the MIPS III instruction set
1390	  with many extensions.
1391
1392	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1393	  have a similar programming interface with FPGA northbridge used in
1394	  Loongson2E.
1395
1396config CPU_LOONGSON1B
1397	bool "Loongson 1B"
1398	depends on SYS_HAS_CPU_LOONGSON1B
1399	select CPU_LOONGSON32
1400	select LEDS_GPIO_REGISTER
1401	help
1402	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1403	  Release 1 instruction set and part of the MIPS32 Release 2
1404	  instruction set.
1405
1406config CPU_LOONGSON1C
1407	bool "Loongson 1C"
1408	depends on SYS_HAS_CPU_LOONGSON1C
1409	select CPU_LOONGSON32
1410	select LEDS_GPIO_REGISTER
1411	help
1412	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1413	  Release 1 instruction set and part of the MIPS32 Release 2
1414	  instruction set.
1415
1416config CPU_MIPS32_R1
1417	bool "MIPS32 Release 1"
1418	depends on SYS_HAS_CPU_MIPS32_R1
1419	select CPU_HAS_PREFETCH
1420	select CPU_SUPPORTS_32BIT_KERNEL
1421	select CPU_SUPPORTS_HIGHMEM
1422	help
1423	  Choose this option to build a kernel for release 1 or later of the
1424	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1425	  MIPS processor are based on a MIPS32 processor.  If you know the
1426	  specific type of processor in your system, choose those that one
1427	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1428	  Release 2 of the MIPS32 architecture is available since several
1429	  years so chances are you even have a MIPS32 Release 2 processor
1430	  in which case you should choose CPU_MIPS32_R2 instead for better
1431	  performance.
1432
1433config CPU_MIPS32_R2
1434	bool "MIPS32 Release 2"
1435	depends on SYS_HAS_CPU_MIPS32_R2
1436	select CPU_HAS_PREFETCH
1437	select CPU_SUPPORTS_32BIT_KERNEL
1438	select CPU_SUPPORTS_HIGHMEM
1439	select CPU_SUPPORTS_MSA
1440	select HAVE_KVM
1441	help
1442	  Choose this option to build a kernel for release 2 or later of the
1443	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1444	  MIPS processor are based on a MIPS32 processor.  If you know the
1445	  specific type of processor in your system, choose those that one
1446	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1447
1448config CPU_MIPS32_R5
1449	bool "MIPS32 Release 5"
1450	depends on SYS_HAS_CPU_MIPS32_R5
1451	select CPU_HAS_PREFETCH
1452	select CPU_SUPPORTS_32BIT_KERNEL
1453	select CPU_SUPPORTS_HIGHMEM
1454	select CPU_SUPPORTS_MSA
1455	select HAVE_KVM
1456	select MIPS_O32_FP64_SUPPORT
1457	help
1458	  Choose this option to build a kernel for release 5 or later of the
1459	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1460	  family, are based on a MIPS32r5 processor. If you own an older
1461	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1462
1463config CPU_MIPS32_R6
1464	bool "MIPS32 Release 6"
1465	depends on SYS_HAS_CPU_MIPS32_R6
1466	select CPU_HAS_PREFETCH
1467	select CPU_NO_LOAD_STORE_LR
1468	select CPU_SUPPORTS_32BIT_KERNEL
1469	select CPU_SUPPORTS_HIGHMEM
1470	select CPU_SUPPORTS_MSA
1471	select HAVE_KVM
1472	select MIPS_O32_FP64_SUPPORT
1473	help
1474	  Choose this option to build a kernel for release 6 or later of the
1475	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1476	  family, are based on a MIPS32r6 processor. If you own an older
1477	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1478
1479config CPU_MIPS64_R1
1480	bool "MIPS64 Release 1"
1481	depends on SYS_HAS_CPU_MIPS64_R1
1482	select CPU_HAS_PREFETCH
1483	select CPU_SUPPORTS_32BIT_KERNEL
1484	select CPU_SUPPORTS_64BIT_KERNEL
1485	select CPU_SUPPORTS_HIGHMEM
1486	select CPU_SUPPORTS_HUGEPAGES
1487	help
1488	  Choose this option to build a kernel for release 1 or later of the
1489	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1490	  MIPS processor are based on a MIPS64 processor.  If you know the
1491	  specific type of processor in your system, choose those that one
1492	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1493	  Release 2 of the MIPS64 architecture is available since several
1494	  years so chances are you even have a MIPS64 Release 2 processor
1495	  in which case you should choose CPU_MIPS64_R2 instead for better
1496	  performance.
1497
1498config CPU_MIPS64_R2
1499	bool "MIPS64 Release 2"
1500	depends on SYS_HAS_CPU_MIPS64_R2
1501	select CPU_HAS_PREFETCH
1502	select CPU_SUPPORTS_32BIT_KERNEL
1503	select CPU_SUPPORTS_64BIT_KERNEL
1504	select CPU_SUPPORTS_HIGHMEM
1505	select CPU_SUPPORTS_HUGEPAGES
1506	select CPU_SUPPORTS_MSA
1507	select HAVE_KVM
1508	help
1509	  Choose this option to build a kernel for release 2 or later of the
1510	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1511	  MIPS processor are based on a MIPS64 processor.  If you know the
1512	  specific type of processor in your system, choose those that one
1513	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1514
1515config CPU_MIPS64_R5
1516	bool "MIPS64 Release 5"
1517	depends on SYS_HAS_CPU_MIPS64_R5
1518	select CPU_HAS_PREFETCH
1519	select CPU_SUPPORTS_32BIT_KERNEL
1520	select CPU_SUPPORTS_64BIT_KERNEL
1521	select CPU_SUPPORTS_HIGHMEM
1522	select CPU_SUPPORTS_HUGEPAGES
1523	select CPU_SUPPORTS_MSA
1524	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1525	select HAVE_KVM
1526	help
1527	  Choose this option to build a kernel for release 5 or later of the
1528	  MIPS64 architecture.  This is a intermediate MIPS architecture
1529	  release partly implementing release 6 features. Though there is no
1530	  any hardware known to be based on this release.
1531
1532config CPU_MIPS64_R6
1533	bool "MIPS64 Release 6"
1534	depends on SYS_HAS_CPU_MIPS64_R6
1535	select CPU_HAS_PREFETCH
1536	select CPU_NO_LOAD_STORE_LR
1537	select CPU_SUPPORTS_32BIT_KERNEL
1538	select CPU_SUPPORTS_64BIT_KERNEL
1539	select CPU_SUPPORTS_HIGHMEM
1540	select CPU_SUPPORTS_HUGEPAGES
1541	select CPU_SUPPORTS_MSA
1542	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1543	select HAVE_KVM
1544	help
1545	  Choose this option to build a kernel for release 6 or later of the
1546	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1547	  family, are based on a MIPS64r6 processor. If you own an older
1548	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1549
1550config CPU_P5600
1551	bool "MIPS Warrior P5600"
1552	depends on SYS_HAS_CPU_P5600
1553	select CPU_HAS_PREFETCH
1554	select CPU_SUPPORTS_32BIT_KERNEL
1555	select CPU_SUPPORTS_HIGHMEM
1556	select CPU_SUPPORTS_MSA
1557	select CPU_SUPPORTS_CPUFREQ
1558	select CPU_MIPSR2_IRQ_VI
1559	select CPU_MIPSR2_IRQ_EI
1560	select HAVE_KVM
1561	select MIPS_O32_FP64_SUPPORT
1562	help
1563	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1564	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1565	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1566	  level features like up to six P5600 calculation cores, CM2 with L2
1567	  cache, IOCU/IOMMU (though might be unused depending on the system-
1568	  specific IP core configuration), GIC, CPC, virtualisation module,
1569	  eJTAG and PDtrace.
1570
1571config CPU_R3000
1572	bool "R3000"
1573	depends on SYS_HAS_CPU_R3000
1574	select CPU_HAS_WB
1575	select CPU_R3K_TLB
1576	select CPU_SUPPORTS_32BIT_KERNEL
1577	select CPU_SUPPORTS_HIGHMEM
1578	help
1579	  Please make sure to pick the right CPU type. Linux/MIPS is not
1580	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1581	  *not* work on R4000 machines and vice versa.  However, since most
1582	  of the supported machines have an R4000 (or similar) CPU, R4x00
1583	  might be a safe bet.  If the resulting kernel does not work,
1584	  try to recompile with R3000.
1585
1586config CPU_TX39XX
1587	bool "R39XX"
1588	depends on SYS_HAS_CPU_TX39XX
1589	select CPU_SUPPORTS_32BIT_KERNEL
1590	select CPU_R3K_TLB
1591
1592config CPU_VR41XX
1593	bool "R41xx"
1594	depends on SYS_HAS_CPU_VR41XX
1595	select CPU_SUPPORTS_32BIT_KERNEL
1596	select CPU_SUPPORTS_64BIT_KERNEL
1597	help
1598	  The options selects support for the NEC VR4100 series of processors.
1599	  Only choose this option if you have one of these processors as a
1600	  kernel built with this option will not run on any other type of
1601	  processor or vice versa.
1602
1603config CPU_R4300
1604	bool "R4300"
1605	depends on SYS_HAS_CPU_R4300
1606	select CPU_SUPPORTS_32BIT_KERNEL
1607	select CPU_SUPPORTS_64BIT_KERNEL
1608	help
1609	  MIPS Technologies R4300-series processors.
1610
1611config CPU_R4X00
1612	bool "R4x00"
1613	depends on SYS_HAS_CPU_R4X00
1614	select CPU_SUPPORTS_32BIT_KERNEL
1615	select CPU_SUPPORTS_64BIT_KERNEL
1616	select CPU_SUPPORTS_HUGEPAGES
1617	help
1618	  MIPS Technologies R4000-series processors other than 4300, including
1619	  the R4000, R4400, R4600, and 4700.
1620
1621config CPU_TX49XX
1622	bool "R49XX"
1623	depends on SYS_HAS_CPU_TX49XX
1624	select CPU_HAS_PREFETCH
1625	select CPU_SUPPORTS_32BIT_KERNEL
1626	select CPU_SUPPORTS_64BIT_KERNEL
1627	select CPU_SUPPORTS_HUGEPAGES
1628
1629config CPU_R5000
1630	bool "R5000"
1631	depends on SYS_HAS_CPU_R5000
1632	select CPU_SUPPORTS_32BIT_KERNEL
1633	select CPU_SUPPORTS_64BIT_KERNEL
1634	select CPU_SUPPORTS_HUGEPAGES
1635	help
1636	  MIPS Technologies R5000-series processors other than the Nevada.
1637
1638config CPU_R5500
1639	bool "R5500"
1640	depends on SYS_HAS_CPU_R5500
1641	select CPU_SUPPORTS_32BIT_KERNEL
1642	select CPU_SUPPORTS_64BIT_KERNEL
1643	select CPU_SUPPORTS_HUGEPAGES
1644	help
1645	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1646	  instruction set.
1647
1648config CPU_NEVADA
1649	bool "RM52xx"
1650	depends on SYS_HAS_CPU_NEVADA
1651	select CPU_SUPPORTS_32BIT_KERNEL
1652	select CPU_SUPPORTS_64BIT_KERNEL
1653	select CPU_SUPPORTS_HUGEPAGES
1654	help
1655	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1656
1657config CPU_R10000
1658	bool "R10000"
1659	depends on SYS_HAS_CPU_R10000
1660	select CPU_HAS_PREFETCH
1661	select CPU_SUPPORTS_32BIT_KERNEL
1662	select CPU_SUPPORTS_64BIT_KERNEL
1663	select CPU_SUPPORTS_HIGHMEM
1664	select CPU_SUPPORTS_HUGEPAGES
1665	help
1666	  MIPS Technologies R10000-series processors.
1667
1668config CPU_RM7000
1669	bool "RM7000"
1670	depends on SYS_HAS_CPU_RM7000
1671	select CPU_HAS_PREFETCH
1672	select CPU_SUPPORTS_32BIT_KERNEL
1673	select CPU_SUPPORTS_64BIT_KERNEL
1674	select CPU_SUPPORTS_HIGHMEM
1675	select CPU_SUPPORTS_HUGEPAGES
1676
1677config CPU_SB1
1678	bool "SB1"
1679	depends on SYS_HAS_CPU_SB1
1680	select CPU_SUPPORTS_32BIT_KERNEL
1681	select CPU_SUPPORTS_64BIT_KERNEL
1682	select CPU_SUPPORTS_HIGHMEM
1683	select CPU_SUPPORTS_HUGEPAGES
1684	select WEAK_ORDERING
1685
1686config CPU_CAVIUM_OCTEON
1687	bool "Cavium Octeon processor"
1688	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1689	select CPU_HAS_PREFETCH
1690	select CPU_SUPPORTS_64BIT_KERNEL
1691	select WEAK_ORDERING
1692	select CPU_SUPPORTS_HIGHMEM
1693	select CPU_SUPPORTS_HUGEPAGES
1694	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1695	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1696	select MIPS_L1_CACHE_SHIFT_7
1697	select HAVE_KVM
1698	help
1699	  The Cavium Octeon processor is a highly integrated chip containing
1700	  many ethernet hardware widgets for networking tasks. The processor
1701	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1702	  Full details can be found at http://www.caviumnetworks.com.
1703
1704config CPU_BMIPS
1705	bool "Broadcom BMIPS"
1706	depends on SYS_HAS_CPU_BMIPS
1707	select CPU_MIPS32
1708	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1709	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1710	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1711	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1712	select CPU_SUPPORTS_32BIT_KERNEL
1713	select DMA_NONCOHERENT
1714	select IRQ_MIPS_CPU
1715	select SWAP_IO_SPACE
1716	select WEAK_ORDERING
1717	select CPU_SUPPORTS_HIGHMEM
1718	select CPU_HAS_PREFETCH
1719	select CPU_SUPPORTS_CPUFREQ
1720	select MIPS_EXTERNAL_TIMER
1721	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
1722	help
1723	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1724
1725endchoice
1726
1727config CPU_MIPS32_3_5_FEATURES
1728	bool "MIPS32 Release 3.5 Features"
1729	depends on SYS_HAS_CPU_MIPS32_R3_5
1730	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1731		   CPU_P5600
1732	help
1733	  Choose this option to build a kernel for release 2 or later of the
1734	  MIPS32 architecture including features from the 3.5 release such as
1735	  support for Enhanced Virtual Addressing (EVA).
1736
1737config CPU_MIPS32_3_5_EVA
1738	bool "Enhanced Virtual Addressing (EVA)"
1739	depends on CPU_MIPS32_3_5_FEATURES
1740	select EVA
1741	default y
1742	help
1743	  Choose this option if you want to enable the Enhanced Virtual
1744	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1745	  One of its primary benefits is an increase in the maximum size
1746	  of lowmem (up to 3GB). If unsure, say 'N' here.
1747
1748config CPU_MIPS32_R5_FEATURES
1749	bool "MIPS32 Release 5 Features"
1750	depends on SYS_HAS_CPU_MIPS32_R5
1751	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1752	help
1753	  Choose this option to build a kernel for release 2 or later of the
1754	  MIPS32 architecture including features from release 5 such as
1755	  support for Extended Physical Addressing (XPA).
1756
1757config CPU_MIPS32_R5_XPA
1758	bool "Extended Physical Addressing (XPA)"
1759	depends on CPU_MIPS32_R5_FEATURES
1760	depends on !EVA
1761	depends on !PAGE_SIZE_4KB
1762	depends on SYS_SUPPORTS_HIGHMEM
1763	select XPA
1764	select HIGHMEM
1765	select PHYS_ADDR_T_64BIT
1766	default n
1767	help
1768	  Choose this option if you want to enable the Extended Physical
1769	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1770	  benefit is to increase physical addressing equal to or greater
1771	  than 40 bits. Note that this has the side effect of turning on
1772	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1773	  If unsure, say 'N' here.
1774
1775if CPU_LOONGSON2F
1776config CPU_NOP_WORKAROUNDS
1777	bool
1778
1779config CPU_JUMP_WORKAROUNDS
1780	bool
1781
1782config CPU_LOONGSON2F_WORKAROUNDS
1783	bool "Loongson 2F Workarounds"
1784	default y
1785	select CPU_NOP_WORKAROUNDS
1786	select CPU_JUMP_WORKAROUNDS
1787	help
1788	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1789	  require workarounds.  Without workarounds the system may hang
1790	  unexpectedly.  For more information please refer to the gas
1791	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1792
1793	  Loongson 2F03 and later have fixed these issues and no workarounds
1794	  are needed.  The workarounds have no significant side effect on them
1795	  but may decrease the performance of the system so this option should
1796	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1797	  systems.
1798
1799	  If unsure, please say Y.
1800endif # CPU_LOONGSON2F
1801
1802config SYS_SUPPORTS_ZBOOT
1803	bool
1804	select HAVE_KERNEL_GZIP
1805	select HAVE_KERNEL_BZIP2
1806	select HAVE_KERNEL_LZ4
1807	select HAVE_KERNEL_LZMA
1808	select HAVE_KERNEL_LZO
1809	select HAVE_KERNEL_XZ
1810	select HAVE_KERNEL_ZSTD
1811
1812config SYS_SUPPORTS_ZBOOT_UART16550
1813	bool
1814	select SYS_SUPPORTS_ZBOOT
1815
1816config SYS_SUPPORTS_ZBOOT_UART_PROM
1817	bool
1818	select SYS_SUPPORTS_ZBOOT
1819
1820config CPU_LOONGSON2EF
1821	bool
1822	select CPU_SUPPORTS_32BIT_KERNEL
1823	select CPU_SUPPORTS_64BIT_KERNEL
1824	select CPU_SUPPORTS_HIGHMEM
1825	select CPU_SUPPORTS_HUGEPAGES
1826	select ARCH_HAS_PHYS_TO_DMA
1827
1828config CPU_LOONGSON32
1829	bool
1830	select CPU_MIPS32
1831	select CPU_MIPSR2
1832	select CPU_HAS_PREFETCH
1833	select CPU_SUPPORTS_32BIT_KERNEL
1834	select CPU_SUPPORTS_HIGHMEM
1835	select CPU_SUPPORTS_CPUFREQ
1836
1837config CPU_BMIPS32_3300
1838	select SMP_UP if SMP
1839	bool
1840
1841config CPU_BMIPS4350
1842	bool
1843	select SYS_SUPPORTS_SMP
1844	select SYS_SUPPORTS_HOTPLUG_CPU
1845
1846config CPU_BMIPS4380
1847	bool
1848	select MIPS_L1_CACHE_SHIFT_6
1849	select SYS_SUPPORTS_SMP
1850	select SYS_SUPPORTS_HOTPLUG_CPU
1851	select CPU_HAS_RIXI
1852
1853config CPU_BMIPS5000
1854	bool
1855	select MIPS_CPU_SCACHE
1856	select MIPS_L1_CACHE_SHIFT_7
1857	select SYS_SUPPORTS_SMP
1858	select SYS_SUPPORTS_HOTPLUG_CPU
1859	select CPU_HAS_RIXI
1860
1861config SYS_HAS_CPU_LOONGSON64
1862	bool
1863	select CPU_SUPPORTS_CPUFREQ
1864	select CPU_HAS_RIXI
1865
1866config SYS_HAS_CPU_LOONGSON2E
1867	bool
1868
1869config SYS_HAS_CPU_LOONGSON2F
1870	bool
1871	select CPU_SUPPORTS_CPUFREQ
1872	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1873
1874config SYS_HAS_CPU_LOONGSON1B
1875	bool
1876
1877config SYS_HAS_CPU_LOONGSON1C
1878	bool
1879
1880config SYS_HAS_CPU_MIPS32_R1
1881	bool
1882
1883config SYS_HAS_CPU_MIPS32_R2
1884	bool
1885
1886config SYS_HAS_CPU_MIPS32_R3_5
1887	bool
1888
1889config SYS_HAS_CPU_MIPS32_R5
1890	bool
1891	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1892
1893config SYS_HAS_CPU_MIPS32_R6
1894	bool
1895	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1896
1897config SYS_HAS_CPU_MIPS64_R1
1898	bool
1899
1900config SYS_HAS_CPU_MIPS64_R2
1901	bool
1902
1903config SYS_HAS_CPU_MIPS64_R5
1904	bool
1905	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1906
1907config SYS_HAS_CPU_MIPS64_R6
1908	bool
1909	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1910
1911config SYS_HAS_CPU_P5600
1912	bool
1913	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1914
1915config SYS_HAS_CPU_R3000
1916	bool
1917
1918config SYS_HAS_CPU_TX39XX
1919	bool
1920
1921config SYS_HAS_CPU_VR41XX
1922	bool
1923
1924config SYS_HAS_CPU_R4300
1925	bool
1926
1927config SYS_HAS_CPU_R4X00
1928	bool
1929
1930config SYS_HAS_CPU_TX49XX
1931	bool
1932
1933config SYS_HAS_CPU_R5000
1934	bool
1935
1936config SYS_HAS_CPU_R5500
1937	bool
1938
1939config SYS_HAS_CPU_NEVADA
1940	bool
1941
1942config SYS_HAS_CPU_R10000
1943	bool
1944	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1945
1946config SYS_HAS_CPU_RM7000
1947	bool
1948
1949config SYS_HAS_CPU_SB1
1950	bool
1951
1952config SYS_HAS_CPU_CAVIUM_OCTEON
1953	bool
1954
1955config SYS_HAS_CPU_BMIPS
1956	bool
1957
1958config SYS_HAS_CPU_BMIPS32_3300
1959	bool
1960	select SYS_HAS_CPU_BMIPS
1961
1962config SYS_HAS_CPU_BMIPS4350
1963	bool
1964	select SYS_HAS_CPU_BMIPS
1965
1966config SYS_HAS_CPU_BMIPS4380
1967	bool
1968	select SYS_HAS_CPU_BMIPS
1969
1970config SYS_HAS_CPU_BMIPS5000
1971	bool
1972	select SYS_HAS_CPU_BMIPS
1973	select ARCH_HAS_SYNC_DMA_FOR_CPU
1974
1975#
1976# CPU may reorder R->R, R->W, W->R, W->W
1977# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1978#
1979config WEAK_ORDERING
1980	bool
1981
1982#
1983# CPU may reorder reads and writes beyond LL/SC
1984# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1985#
1986config WEAK_REORDERING_BEYOND_LLSC
1987	bool
1988endmenu
1989
1990#
1991# These two indicate any level of the MIPS32 and MIPS64 architecture
1992#
1993config CPU_MIPS32
1994	bool
1995	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
1996		     CPU_MIPS32_R6 || CPU_P5600
1997
1998config CPU_MIPS64
1999	bool
2000	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2001		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
2002
2003#
2004# These indicate the revision of the architecture
2005#
2006config CPU_MIPSR1
2007	bool
2008	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2009
2010config CPU_MIPSR2
2011	bool
2012	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2013	select CPU_HAS_RIXI
2014	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2015	select MIPS_SPRAM
2016
2017config CPU_MIPSR5
2018	bool
2019	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2020	select CPU_HAS_RIXI
2021	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2022	select MIPS_SPRAM
2023
2024config CPU_MIPSR6
2025	bool
2026	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2027	select CPU_HAS_RIXI
2028	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2029	select HAVE_ARCH_BITREVERSE
2030	select MIPS_ASID_BITS_VARIABLE
2031	select MIPS_CRC_SUPPORT
2032	select MIPS_SPRAM
2033
2034config TARGET_ISA_REV
2035	int
2036	default 1 if CPU_MIPSR1
2037	default 2 if CPU_MIPSR2
2038	default 5 if CPU_MIPSR5
2039	default 6 if CPU_MIPSR6
2040	default 0
2041	help
2042	  Reflects the ISA revision being targeted by the kernel build. This
2043	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2044
2045config EVA
2046	bool
2047
2048config XPA
2049	bool
2050
2051config SYS_SUPPORTS_32BIT_KERNEL
2052	bool
2053config SYS_SUPPORTS_64BIT_KERNEL
2054	bool
2055config CPU_SUPPORTS_32BIT_KERNEL
2056	bool
2057config CPU_SUPPORTS_64BIT_KERNEL
2058	bool
2059config CPU_SUPPORTS_CPUFREQ
2060	bool
2061config CPU_SUPPORTS_ADDRWINCFG
2062	bool
2063config CPU_SUPPORTS_HUGEPAGES
2064	bool
2065	depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
2066config MIPS_PGD_C0_CONTEXT
2067	bool
2068	depends on 64BIT
2069	default y if (CPU_MIPSR2 || CPU_MIPSR6)
2070
2071#
2072# Set to y for ptrace access to watch registers.
2073#
2074config HARDWARE_WATCHPOINTS
2075	bool
2076	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2077
2078menu "Kernel type"
2079
2080choice
2081	prompt "Kernel code model"
2082	help
2083	  You should only select this option if you have a workload that
2084	  actually benefits from 64-bit processing or if your machine has
2085	  large memory.  You will only be presented a single option in this
2086	  menu if your system does not support both 32-bit and 64-bit kernels.
2087
2088config 32BIT
2089	bool "32-bit kernel"
2090	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2091	select TRAD_SIGNALS
2092	help
2093	  Select this option if you want to build a 32-bit kernel.
2094
2095config 64BIT
2096	bool "64-bit kernel"
2097	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2098	help
2099	  Select this option if you want to build a 64-bit kernel.
2100
2101endchoice
2102
2103config MIPS_VA_BITS_48
2104	bool "48 bits virtual memory"
2105	depends on 64BIT
2106	help
2107	  Support a maximum at least 48 bits of application virtual
2108	  memory.  Default is 40 bits or less, depending on the CPU.
2109	  For page sizes 16k and above, this option results in a small
2110	  memory overhead for page tables.  For 4k page size, a fourth
2111	  level of page tables is added which imposes both a memory
2112	  overhead as well as slower TLB fault handling.
2113
2114	  If unsure, say N.
2115
2116config ZBOOT_LOAD_ADDRESS
2117	hex "Compressed kernel load address"
2118	default 0xffffffff80400000 if BCM47XX
2119	default 0x0
2120	depends on SYS_SUPPORTS_ZBOOT
2121	help
2122	  The address to load compressed kernel, aka vmlinuz.
2123
2124	  This is only used if non-zero.
2125
2126choice
2127	prompt "Kernel page size"
2128	default PAGE_SIZE_4KB
2129
2130config PAGE_SIZE_4KB
2131	bool "4kB"
2132	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2133	help
2134	  This option select the standard 4kB Linux page size.  On some
2135	  R3000-family processors this is the only available page size.  Using
2136	  4kB page size will minimize memory consumption and is therefore
2137	  recommended for low memory systems.
2138
2139config PAGE_SIZE_8KB
2140	bool "8kB"
2141	depends on CPU_CAVIUM_OCTEON
2142	depends on !MIPS_VA_BITS_48
2143	help
2144	  Using 8kB page size will result in higher performance kernel at
2145	  the price of higher memory consumption.  This option is available
2146	  only on cnMIPS processors.  Note that you will need a suitable Linux
2147	  distribution to support this.
2148
2149config PAGE_SIZE_16KB
2150	bool "16kB"
2151	depends on !CPU_R3000 && !CPU_TX39XX
2152	help
2153	  Using 16kB page size will result in higher performance kernel at
2154	  the price of higher memory consumption.  This option is available on
2155	  all non-R3000 family processors.  Note that you will need a suitable
2156	  Linux distribution to support this.
2157
2158config PAGE_SIZE_32KB
2159	bool "32kB"
2160	depends on CPU_CAVIUM_OCTEON
2161	depends on !MIPS_VA_BITS_48
2162	help
2163	  Using 32kB page size will result in higher performance kernel at
2164	  the price of higher memory consumption.  This option is available
2165	  only on cnMIPS cores.  Note that you will need a suitable Linux
2166	  distribution to support this.
2167
2168config PAGE_SIZE_64KB
2169	bool "64kB"
2170	depends on !CPU_R3000 && !CPU_TX39XX
2171	help
2172	  Using 64kB page size will result in higher performance kernel at
2173	  the price of higher memory consumption.  This option is available on
2174	  all non-R3000 family processor.  Not that at the time of this
2175	  writing this option is still high experimental.
2176
2177endchoice
2178
2179config FORCE_MAX_ZONEORDER
2180	int "Maximum zone order"
2181	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2182	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2183	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2184	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2185	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2186	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2187	range 0 64
2188	default "11"
2189	help
2190	  The kernel memory allocator divides physically contiguous memory
2191	  blocks into "zones", where each zone is a power of two number of
2192	  pages.  This option selects the largest power of two that the kernel
2193	  keeps in the memory allocator.  If you need to allocate very large
2194	  blocks of physically contiguous memory, then you may need to
2195	  increase this value.
2196
2197	  This config option is actually maximum order plus one. For example,
2198	  a value of 11 means that the largest free memory block is 2^10 pages.
2199
2200	  The page size is not necessarily 4KB.  Keep this in mind
2201	  when choosing a value for this option.
2202
2203config BOARD_SCACHE
2204	bool
2205
2206config IP22_CPU_SCACHE
2207	bool
2208	select BOARD_SCACHE
2209
2210#
2211# Support for a MIPS32 / MIPS64 style S-caches
2212#
2213config MIPS_CPU_SCACHE
2214	bool
2215	select BOARD_SCACHE
2216
2217config R5000_CPU_SCACHE
2218	bool
2219	select BOARD_SCACHE
2220
2221config RM7000_CPU_SCACHE
2222	bool
2223	select BOARD_SCACHE
2224
2225config SIBYTE_DMA_PAGEOPS
2226	bool "Use DMA to clear/copy pages"
2227	depends on CPU_SB1
2228	help
2229	  Instead of using the CPU to zero and copy pages, use a Data Mover
2230	  channel.  These DMA channels are otherwise unused by the standard
2231	  SiByte Linux port.  Seems to give a small performance benefit.
2232
2233config CPU_HAS_PREFETCH
2234	bool
2235
2236config CPU_GENERIC_DUMP_TLB
2237	bool
2238	default y if !(CPU_R3000 || CPU_TX39XX)
2239
2240config MIPS_FP_SUPPORT
2241	bool "Floating Point support" if EXPERT
2242	default y
2243	help
2244	  Select y to include support for floating point in the kernel
2245	  including initialization of FPU hardware, FP context save & restore
2246	  and emulation of an FPU where necessary. Without this support any
2247	  userland program attempting to use floating point instructions will
2248	  receive a SIGILL.
2249
2250	  If you know that your userland will not attempt to use floating point
2251	  instructions then you can say n here to shrink the kernel a little.
2252
2253	  If unsure, say y.
2254
2255config CPU_R2300_FPU
2256	bool
2257	depends on MIPS_FP_SUPPORT
2258	default y if CPU_R3000 || CPU_TX39XX
2259
2260config CPU_R3K_TLB
2261	bool
2262
2263config CPU_R4K_FPU
2264	bool
2265	depends on MIPS_FP_SUPPORT
2266	default y if !CPU_R2300_FPU
2267
2268config CPU_R4K_CACHE_TLB
2269	bool
2270	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2271
2272config MIPS_MT_SMP
2273	bool "MIPS MT SMP support (1 TC on each available VPE)"
2274	default y
2275	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2276	select CPU_MIPSR2_IRQ_VI
2277	select CPU_MIPSR2_IRQ_EI
2278	select SYNC_R4K
2279	select MIPS_MT
2280	select SMP
2281	select SMP_UP
2282	select SYS_SUPPORTS_SMP
2283	select SYS_SUPPORTS_SCHED_SMT
2284	select MIPS_PERF_SHARED_TC_COUNTERS
2285	help
2286	  This is a kernel model which is known as SMVP. This is supported
2287	  on cores with the MT ASE and uses the available VPEs to implement
2288	  virtual processors which supports SMP. This is equivalent to the
2289	  Intel Hyperthreading feature. For further information go to
2290	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2291
2292config MIPS_MT
2293	bool
2294
2295config SCHED_SMT
2296	bool "SMT (multithreading) scheduler support"
2297	depends on SYS_SUPPORTS_SCHED_SMT
2298	default n
2299	help
2300	  SMT scheduler support improves the CPU scheduler's decision making
2301	  when dealing with MIPS MT enabled cores at a cost of slightly
2302	  increased overhead in some places. If unsure say N here.
2303
2304config SYS_SUPPORTS_SCHED_SMT
2305	bool
2306
2307config SYS_SUPPORTS_MULTITHREADING
2308	bool
2309
2310config MIPS_MT_FPAFF
2311	bool "Dynamic FPU affinity for FP-intensive threads"
2312	default y
2313	depends on MIPS_MT_SMP
2314
2315config MIPSR2_TO_R6_EMULATOR
2316	bool "MIPS R2-to-R6 emulator"
2317	depends on CPU_MIPSR6
2318	depends on MIPS_FP_SUPPORT
2319	default y
2320	help
2321	  Choose this option if you want to run non-R6 MIPS userland code.
2322	  Even if you say 'Y' here, the emulator will still be disabled by
2323	  default. You can enable it using the 'mipsr2emu' kernel option.
2324	  The only reason this is a build-time option is to save ~14K from the
2325	  final kernel image.
2326
2327config SYS_SUPPORTS_VPE_LOADER
2328	bool
2329	depends on SYS_SUPPORTS_MULTITHREADING
2330	help
2331	  Indicates that the platform supports the VPE loader, and provides
2332	  physical_memsize.
2333
2334config MIPS_VPE_LOADER
2335	bool "VPE loader support."
2336	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2337	select CPU_MIPSR2_IRQ_VI
2338	select CPU_MIPSR2_IRQ_EI
2339	select MIPS_MT
2340	help
2341	  Includes a loader for loading an elf relocatable object
2342	  onto another VPE and running it.
2343
2344config MIPS_VPE_LOADER_CMP
2345	bool
2346	default "y"
2347	depends on MIPS_VPE_LOADER && MIPS_CMP
2348
2349config MIPS_VPE_LOADER_MT
2350	bool
2351	default "y"
2352	depends on MIPS_VPE_LOADER && !MIPS_CMP
2353
2354config MIPS_VPE_LOADER_TOM
2355	bool "Load VPE program into memory hidden from linux"
2356	depends on MIPS_VPE_LOADER
2357	default y
2358	help
2359	  The loader can use memory that is present but has been hidden from
2360	  Linux using the kernel command line option "mem=xxMB". It's up to
2361	  you to ensure the amount you put in the option and the space your
2362	  program requires is less or equal to the amount physically present.
2363
2364config MIPS_VPE_APSP_API
2365	bool "Enable support for AP/SP API (RTLX)"
2366	depends on MIPS_VPE_LOADER
2367
2368config MIPS_VPE_APSP_API_CMP
2369	bool
2370	default "y"
2371	depends on MIPS_VPE_APSP_API && MIPS_CMP
2372
2373config MIPS_VPE_APSP_API_MT
2374	bool
2375	default "y"
2376	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2377
2378config MIPS_CMP
2379	bool "MIPS CMP framework support (DEPRECATED)"
2380	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2381	select SMP
2382	select SYNC_R4K
2383	select SYS_SUPPORTS_SMP
2384	select WEAK_ORDERING
2385	default n
2386	help
2387	  Select this if you are using a bootloader which implements the "CMP
2388	  framework" protocol (ie. YAMON) and want your kernel to make use of
2389	  its ability to start secondary CPUs.
2390
2391	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2392	  instead of this.
2393
2394config MIPS_CPS
2395	bool "MIPS Coherent Processing System support"
2396	depends on SYS_SUPPORTS_MIPS_CPS
2397	select MIPS_CM
2398	select MIPS_CPS_PM if HOTPLUG_CPU
2399	select SMP
2400	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2401	select SYS_SUPPORTS_HOTPLUG_CPU
2402	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2403	select SYS_SUPPORTS_SMP
2404	select WEAK_ORDERING
2405	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2406	help
2407	  Select this if you wish to run an SMP kernel across multiple cores
2408	  within a MIPS Coherent Processing System. When this option is
2409	  enabled the kernel will probe for other cores and boot them with
2410	  no external assistance. It is safe to enable this when hardware
2411	  support is unavailable.
2412
2413config MIPS_CPS_PM
2414	depends on MIPS_CPS
2415	bool
2416
2417config MIPS_CM
2418	bool
2419	select MIPS_CPC
2420
2421config MIPS_CPC
2422	bool
2423
2424config SB1_PASS_2_WORKAROUNDS
2425	bool
2426	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2427	default y
2428
2429config SB1_PASS_2_1_WORKAROUNDS
2430	bool
2431	depends on CPU_SB1 && CPU_SB1_PASS_2
2432	default y
2433
2434choice
2435	prompt "SmartMIPS or microMIPS ASE support"
2436
2437config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2438	bool "None"
2439	help
2440	  Select this if you want neither microMIPS nor SmartMIPS support
2441
2442config CPU_HAS_SMARTMIPS
2443	depends on SYS_SUPPORTS_SMARTMIPS
2444	bool "SmartMIPS"
2445	help
2446	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2447	  increased security at both hardware and software level for
2448	  smartcards.  Enabling this option will allow proper use of the
2449	  SmartMIPS instructions by Linux applications.  However a kernel with
2450	  this option will not work on a MIPS core without SmartMIPS core.  If
2451	  you don't know you probably don't have SmartMIPS and should say N
2452	  here.
2453
2454config CPU_MICROMIPS
2455	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2456	bool "microMIPS"
2457	help
2458	  When this option is enabled the kernel will be built using the
2459	  microMIPS ISA
2460
2461endchoice
2462
2463config CPU_HAS_MSA
2464	bool "Support for the MIPS SIMD Architecture"
2465	depends on CPU_SUPPORTS_MSA
2466	depends on MIPS_FP_SUPPORT
2467	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2468	help
2469	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2470	  and a set of SIMD instructions to operate on them. When this option
2471	  is enabled the kernel will support allocating & switching MSA
2472	  vector register contexts. If you know that your kernel will only be
2473	  running on CPUs which do not support MSA or that your userland will
2474	  not be making use of it then you may wish to say N here to reduce
2475	  the size & complexity of your kernel.
2476
2477	  If unsure, say Y.
2478
2479config CPU_HAS_WB
2480	bool
2481
2482config XKS01
2483	bool
2484
2485config CPU_HAS_DIEI
2486	depends on !CPU_DIEI_BROKEN
2487	bool
2488
2489config CPU_DIEI_BROKEN
2490	bool
2491
2492config CPU_HAS_RIXI
2493	bool
2494
2495config CPU_NO_LOAD_STORE_LR
2496	bool
2497	help
2498	  CPU lacks support for unaligned load and store instructions:
2499	  LWL, LWR, SWL, SWR (Load/store word left/right).
2500	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2501	  systems).
2502
2503#
2504# Vectored interrupt mode is an R2 feature
2505#
2506config CPU_MIPSR2_IRQ_VI
2507	bool
2508
2509#
2510# Extended interrupt mode is an R2 feature
2511#
2512config CPU_MIPSR2_IRQ_EI
2513	bool
2514
2515config CPU_HAS_SYNC
2516	bool
2517	depends on !CPU_R3000
2518	default y
2519
2520#
2521# CPU non-features
2522#
2523config CPU_DADDI_WORKAROUNDS
2524	bool
2525
2526config CPU_R4000_WORKAROUNDS
2527	bool
2528	select CPU_R4400_WORKAROUNDS
2529
2530config CPU_R4400_WORKAROUNDS
2531	bool
2532
2533config CPU_R4X00_BUGS64
2534	bool
2535	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2536
2537config MIPS_ASID_SHIFT
2538	int
2539	default 6 if CPU_R3000 || CPU_TX39XX
2540	default 0
2541
2542config MIPS_ASID_BITS
2543	int
2544	default 0 if MIPS_ASID_BITS_VARIABLE
2545	default 6 if CPU_R3000 || CPU_TX39XX
2546	default 8
2547
2548config MIPS_ASID_BITS_VARIABLE
2549	bool
2550
2551config MIPS_CRC_SUPPORT
2552	bool
2553
2554# R4600 erratum.  Due to the lack of errata information the exact
2555# technical details aren't known.  I've experimentally found that disabling
2556# interrupts during indexed I-cache flushes seems to be sufficient to deal
2557# with the issue.
2558config WAR_R4600_V1_INDEX_ICACHEOP
2559	bool
2560
2561# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
2562#
2563#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2564#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2565#      executed if there is no other dcache activity. If the dcache is
2566#      accessed for another instruction immediately preceding when these
2567#      cache instructions are executing, it is possible that the dcache
2568#      tag match outputs used by these cache instructions will be
2569#      incorrect. These cache instructions should be preceded by at least
2570#      four instructions that are not any kind of load or store
2571#      instruction.
2572#
2573#      This is not allowed:    lw
2574#                              nop
2575#                              nop
2576#                              nop
2577#                              cache       Hit_Writeback_Invalidate_D
2578#
2579#      This is allowed:        lw
2580#                              nop
2581#                              nop
2582#                              nop
2583#                              nop
2584#                              cache       Hit_Writeback_Invalidate_D
2585config WAR_R4600_V1_HIT_CACHEOP
2586	bool
2587
2588# Writeback and invalidate the primary cache dcache before DMA.
2589#
2590# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2591# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2592# operate correctly if the internal data cache refill buffer is empty.  These
2593# CACHE instructions should be separated from any potential data cache miss
2594# by a load instruction to an uncached address to empty the response buffer."
2595# (Revision 2.0 device errata from IDT available on https://www.idt.com/
2596# in .pdf format.)
2597config WAR_R4600_V2_HIT_CACHEOP
2598	bool
2599
2600# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2601# the line which this instruction itself exists, the following
2602# operation is not guaranteed."
2603#
2604# Workaround: do two phase flushing for Index_Invalidate_I
2605config WAR_TX49XX_ICACHE_INDEX_INV
2606	bool
2607
2608# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2609# opposes it being called that) where invalid instructions in the same
2610# I-cache line worth of instructions being fetched may case spurious
2611# exceptions.
2612config WAR_ICACHE_REFILLS
2613	bool
2614
2615# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2616# may cause ll / sc and lld / scd sequences to execute non-atomically.
2617config WAR_R10000_LLSC
2618	bool
2619
2620# 34K core erratum: "Problems Executing the TLBR Instruction"
2621config WAR_MIPS34K_MISSED_ITLB
2622	bool
2623
2624#
2625# - Highmem only makes sense for the 32-bit kernel.
2626# - The current highmem code will only work properly on physically indexed
2627#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2628#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2629#   moment we protect the user and offer the highmem option only on machines
2630#   where it's known to be safe.  This will not offer highmem on a few systems
2631#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2632#   indexed CPUs but we're playing safe.
2633# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2634#   know they might have memory configurations that could make use of highmem
2635#   support.
2636#
2637config HIGHMEM
2638	bool "High Memory Support"
2639	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2640	select KMAP_LOCAL
2641
2642config CPU_SUPPORTS_HIGHMEM
2643	bool
2644
2645config SYS_SUPPORTS_HIGHMEM
2646	bool
2647
2648config SYS_SUPPORTS_SMARTMIPS
2649	bool
2650
2651config SYS_SUPPORTS_MICROMIPS
2652	bool
2653
2654config SYS_SUPPORTS_MIPS16
2655	bool
2656	help
2657	  This option must be set if a kernel might be executed on a MIPS16-
2658	  enabled CPU even if MIPS16 is not actually being used.  In other
2659	  words, it makes the kernel MIPS16-tolerant.
2660
2661config CPU_SUPPORTS_MSA
2662	bool
2663
2664config ARCH_FLATMEM_ENABLE
2665	def_bool y
2666	depends on !NUMA && !CPU_LOONGSON2EF
2667
2668config ARCH_SPARSEMEM_ENABLE
2669	bool
2670	select SPARSEMEM_STATIC if !SGI_IP27
2671
2672config NUMA
2673	bool "NUMA Support"
2674	depends on SYS_SUPPORTS_NUMA
2675	select SMP
2676	select HAVE_SETUP_PER_CPU_AREA
2677	select NEED_PER_CPU_EMBED_FIRST_CHUNK
2678	help
2679	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2680	  Access).  This option improves performance on systems with more
2681	  than two nodes; on two node systems it is generally better to
2682	  leave it disabled; on single node systems leave this option
2683	  disabled.
2684
2685config SYS_SUPPORTS_NUMA
2686	bool
2687
2688config RELOCATABLE
2689	bool "Relocatable kernel"
2690	depends on SYS_SUPPORTS_RELOCATABLE
2691	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2692		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2693		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2694		   CPU_P5600 || CAVIUM_OCTEON_SOC || \
2695		   CPU_LOONGSON64
2696	help
2697	  This builds a kernel image that retains relocation information
2698	  so it can be loaded someplace besides the default 1MB.
2699	  The relocations make the kernel binary about 15% larger,
2700	  but are discarded at runtime
2701
2702config RELOCATION_TABLE_SIZE
2703	hex "Relocation table size"
2704	depends on RELOCATABLE
2705	range 0x0 0x01000000
2706	default "0x00200000" if CPU_LOONGSON64
2707	default "0x00100000"
2708	help
2709	  A table of relocation data will be appended to the kernel binary
2710	  and parsed at boot to fix up the relocated kernel.
2711
2712	  This option allows the amount of space reserved for the table to be
2713	  adjusted, although the default of 1Mb should be ok in most cases.
2714
2715	  The build will fail and a valid size suggested if this is too small.
2716
2717	  If unsure, leave at the default value.
2718
2719config RANDOMIZE_BASE
2720	bool "Randomize the address of the kernel image"
2721	depends on RELOCATABLE
2722	help
2723	  Randomizes the physical and virtual address at which the
2724	  kernel image is loaded, as a security feature that
2725	  deters exploit attempts relying on knowledge of the location
2726	  of kernel internals.
2727
2728	  Entropy is generated using any coprocessor 0 registers available.
2729
2730	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2731
2732	  If unsure, say N.
2733
2734config RANDOMIZE_BASE_MAX_OFFSET
2735	hex "Maximum kASLR offset" if EXPERT
2736	depends on RANDOMIZE_BASE
2737	range 0x0 0x40000000 if EVA || 64BIT
2738	range 0x0 0x08000000
2739	default "0x01000000"
2740	help
2741	  When kASLR is active, this provides the maximum offset that will
2742	  be applied to the kernel image. It should be set according to the
2743	  amount of physical RAM available in the target system minus
2744	  PHYSICAL_START and must be a power of 2.
2745
2746	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2747	  EVA or 64-bit. The default is 16Mb.
2748
2749config NODES_SHIFT
2750	int
2751	default "6"
2752	depends on NUMA
2753
2754config HW_PERF_EVENTS
2755	bool "Enable hardware performance counter support for perf events"
2756	depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64)
2757	default y
2758	help
2759	  Enable hardware performance counter support for perf events. If
2760	  disabled, perf events will use software events only.
2761
2762config DMI
2763	bool "Enable DMI scanning"
2764	depends on MACH_LOONGSON64
2765	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2766	default y
2767	help
2768	  Enabled scanning of DMI to identify machine quirks. Say Y
2769	  here unless you have verified that your setup is not
2770	  affected by entries in the DMI blacklist. Required by PNP
2771	  BIOS code.
2772
2773config SMP
2774	bool "Multi-Processing support"
2775	depends on SYS_SUPPORTS_SMP
2776	help
2777	  This enables support for systems with more than one CPU. If you have
2778	  a system with only one CPU, say N. If you have a system with more
2779	  than one CPU, say Y.
2780
2781	  If you say N here, the kernel will run on uni- and multiprocessor
2782	  machines, but will use only one CPU of a multiprocessor machine. If
2783	  you say Y here, the kernel will run on many, but not all,
2784	  uniprocessor machines. On a uniprocessor machine, the kernel
2785	  will run faster if you say N here.
2786
2787	  People using multiprocessor machines who say Y here should also say
2788	  Y to "Enhanced Real Time Clock Support", below.
2789
2790	  See also the SMP-HOWTO available at
2791	  <https://www.tldp.org/docs.html#howto>.
2792
2793	  If you don't know what to do here, say N.
2794
2795config HOTPLUG_CPU
2796	bool "Support for hot-pluggable CPUs"
2797	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2798	help
2799	  Say Y here to allow turning CPUs off and on. CPUs can be
2800	  controlled through /sys/devices/system/cpu.
2801	  (Note: power management support will enable this option
2802	    automatically on SMP systems. )
2803	  Say N if you want to disable CPU hotplug.
2804
2805config SMP_UP
2806	bool
2807
2808config SYS_SUPPORTS_MIPS_CMP
2809	bool
2810
2811config SYS_SUPPORTS_MIPS_CPS
2812	bool
2813
2814config SYS_SUPPORTS_SMP
2815	bool
2816
2817config NR_CPUS_DEFAULT_4
2818	bool
2819
2820config NR_CPUS_DEFAULT_8
2821	bool
2822
2823config NR_CPUS_DEFAULT_16
2824	bool
2825
2826config NR_CPUS_DEFAULT_32
2827	bool
2828
2829config NR_CPUS_DEFAULT_64
2830	bool
2831
2832config NR_CPUS
2833	int "Maximum number of CPUs (2-256)"
2834	range 2 256
2835	depends on SMP
2836	default "4" if NR_CPUS_DEFAULT_4
2837	default "8" if NR_CPUS_DEFAULT_8
2838	default "16" if NR_CPUS_DEFAULT_16
2839	default "32" if NR_CPUS_DEFAULT_32
2840	default "64" if NR_CPUS_DEFAULT_64
2841	help
2842	  This allows you to specify the maximum number of CPUs which this
2843	  kernel will support.  The maximum supported value is 32 for 32-bit
2844	  kernel and 64 for 64-bit kernels; the minimum value which makes
2845	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2846	  and 2 for all others.
2847
2848	  This is purely to save memory - each supported CPU adds
2849	  approximately eight kilobytes to the kernel image.  For best
2850	  performance should round up your number of processors to the next
2851	  power of two.
2852
2853config MIPS_PERF_SHARED_TC_COUNTERS
2854	bool
2855
2856config MIPS_NR_CPU_NR_MAP_1024
2857	bool
2858
2859config MIPS_NR_CPU_NR_MAP
2860	int
2861	depends on SMP
2862	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2863	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2864
2865#
2866# Timer Interrupt Frequency Configuration
2867#
2868
2869choice
2870	prompt "Timer frequency"
2871	default HZ_250
2872	help
2873	  Allows the configuration of the timer frequency.
2874
2875	config HZ_24
2876		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2877
2878	config HZ_48
2879		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2880
2881	config HZ_100
2882		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2883
2884	config HZ_128
2885		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2886
2887	config HZ_250
2888		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2889
2890	config HZ_256
2891		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2892
2893	config HZ_1000
2894		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2895
2896	config HZ_1024
2897		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2898
2899endchoice
2900
2901config SYS_SUPPORTS_24HZ
2902	bool
2903
2904config SYS_SUPPORTS_48HZ
2905	bool
2906
2907config SYS_SUPPORTS_100HZ
2908	bool
2909
2910config SYS_SUPPORTS_128HZ
2911	bool
2912
2913config SYS_SUPPORTS_250HZ
2914	bool
2915
2916config SYS_SUPPORTS_256HZ
2917	bool
2918
2919config SYS_SUPPORTS_1000HZ
2920	bool
2921
2922config SYS_SUPPORTS_1024HZ
2923	bool
2924
2925config SYS_SUPPORTS_ARBIT_HZ
2926	bool
2927	default y if !SYS_SUPPORTS_24HZ && \
2928		     !SYS_SUPPORTS_48HZ && \
2929		     !SYS_SUPPORTS_100HZ && \
2930		     !SYS_SUPPORTS_128HZ && \
2931		     !SYS_SUPPORTS_250HZ && \
2932		     !SYS_SUPPORTS_256HZ && \
2933		     !SYS_SUPPORTS_1000HZ && \
2934		     !SYS_SUPPORTS_1024HZ
2935
2936config HZ
2937	int
2938	default 24 if HZ_24
2939	default 48 if HZ_48
2940	default 100 if HZ_100
2941	default 128 if HZ_128
2942	default 250 if HZ_250
2943	default 256 if HZ_256
2944	default 1000 if HZ_1000
2945	default 1024 if HZ_1024
2946
2947config SCHED_HRTICK
2948	def_bool HIGH_RES_TIMERS
2949
2950config KEXEC
2951	bool "Kexec system call"
2952	select KEXEC_CORE
2953	help
2954	  kexec is a system call that implements the ability to shutdown your
2955	  current kernel, and to start another kernel.  It is like a reboot
2956	  but it is independent of the system firmware.   And like a reboot
2957	  you can start any kernel with it, not just Linux.
2958
2959	  The name comes from the similarity to the exec system call.
2960
2961	  It is an ongoing process to be certain the hardware in a machine
2962	  is properly shutdown, so do not be surprised if this code does not
2963	  initially work for you.  As of this writing the exact hardware
2964	  interface is strongly in flux, so no good recommendation can be
2965	  made.
2966
2967config CRASH_DUMP
2968	bool "Kernel crash dumps"
2969	help
2970	  Generate crash dump after being started by kexec.
2971	  This should be normally only set in special crash dump kernels
2972	  which are loaded in the main kernel with kexec-tools into
2973	  a specially reserved region and then later executed after
2974	  a crash by kdump/kexec. The crash dump kernel must be compiled
2975	  to a memory address not used by the main kernel or firmware using
2976	  PHYSICAL_START.
2977
2978config PHYSICAL_START
2979	hex "Physical address where the kernel is loaded"
2980	default "0xffffffff84000000"
2981	depends on CRASH_DUMP
2982	help
2983	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2984	  If you plan to use kernel for capturing the crash dump change
2985	  this value to start of the reserved region (the "X" value as
2986	  specified in the "crashkernel=YM@XM" command line boot parameter
2987	  passed to the panic-ed kernel).
2988
2989config MIPS_O32_FP64_SUPPORT
2990	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2991	depends on 32BIT || MIPS32_O32
2992	help
2993	  When this is enabled, the kernel will support use of 64-bit floating
2994	  point registers with binaries using the O32 ABI along with the
2995	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2996	  32-bit MIPS systems this support is at the cost of increasing the
2997	  size and complexity of the compiled FPU emulator. Thus if you are
2998	  running a MIPS32 system and know that none of your userland binaries
2999	  will require 64-bit floating point, you may wish to reduce the size
3000	  of your kernel & potentially improve FP emulation performance by
3001	  saying N here.
3002
3003	  Although binutils currently supports use of this flag the details
3004	  concerning its effect upon the O32 ABI in userland are still being
3005	  worked on. In order to avoid userland becoming dependent upon current
3006	  behaviour before the details have been finalised, this option should
3007	  be considered experimental and only enabled by those working upon
3008	  said details.
3009
3010	  If unsure, say N.
3011
3012config USE_OF
3013	bool
3014	select OF
3015	select OF_EARLY_FLATTREE
3016	select IRQ_DOMAIN
3017
3018config UHI_BOOT
3019	bool
3020
3021config BUILTIN_DTB
3022	bool
3023
3024choice
3025	prompt "Kernel appended dtb support" if USE_OF
3026	default MIPS_NO_APPENDED_DTB
3027
3028	config MIPS_NO_APPENDED_DTB
3029		bool "None"
3030		help
3031		  Do not enable appended dtb support.
3032
3033	config MIPS_ELF_APPENDED_DTB
3034		bool "vmlinux"
3035		help
3036		  With this option, the boot code will look for a device tree binary
3037		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3038		  it is empty and the DTB can be appended using binutils command
3039		  objcopy:
3040
3041		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3042
3043		  This is meant as a backward compatibility convenience for those
3044		  systems with a bootloader that can't be upgraded to accommodate
3045		  the documented boot protocol using a device tree.
3046
3047	config MIPS_RAW_APPENDED_DTB
3048		bool "vmlinux.bin or vmlinuz.bin"
3049		help
3050		  With this option, the boot code will look for a device tree binary
3051		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3052		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3053
3054		  This is meant as a backward compatibility convenience for those
3055		  systems with a bootloader that can't be upgraded to accommodate
3056		  the documented boot protocol using a device tree.
3057
3058		  Beware that there is very little in terms of protection against
3059		  this option being confused by leftover garbage in memory that might
3060		  look like a DTB header after a reboot if no actual DTB is appended
3061		  to vmlinux.bin.  Do not leave this option active in a production kernel
3062		  if you don't intend to always append a DTB.
3063endchoice
3064
3065choice
3066	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3067	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3068					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3069					 !CAVIUM_OCTEON_SOC
3070	default MIPS_CMDLINE_FROM_BOOTLOADER
3071
3072	config MIPS_CMDLINE_FROM_DTB
3073		depends on USE_OF
3074		bool "Dtb kernel arguments if available"
3075
3076	config MIPS_CMDLINE_DTB_EXTEND
3077		depends on USE_OF
3078		bool "Extend dtb kernel arguments with bootloader arguments"
3079
3080	config MIPS_CMDLINE_FROM_BOOTLOADER
3081		bool "Bootloader kernel arguments if available"
3082
3083	config MIPS_CMDLINE_BUILTIN_EXTEND
3084		depends on CMDLINE_BOOL
3085		bool "Extend builtin kernel arguments with bootloader arguments"
3086endchoice
3087
3088endmenu
3089
3090config LOCKDEP_SUPPORT
3091	bool
3092	default y
3093
3094config STACKTRACE_SUPPORT
3095	bool
3096	default y
3097
3098config PGTABLE_LEVELS
3099	int
3100	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3101	default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
3102	default 2
3103
3104config MIPS_AUTO_PFN_OFFSET
3105	bool
3106
3107menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3108
3109config PCI_DRIVERS_GENERIC
3110	select PCI_DOMAINS_GENERIC if PCI
3111	bool
3112
3113config PCI_DRIVERS_LEGACY
3114	def_bool !PCI_DRIVERS_GENERIC
3115	select NO_GENERIC_PCI_IOPORT_MAP
3116	select PCI_DOMAINS if PCI
3117
3118#
3119# ISA support is now enabled via select.  Too many systems still have the one
3120# or other ISA chip on the board that users don't know about so don't expect
3121# users to choose the right thing ...
3122#
3123config ISA
3124	bool
3125
3126config TC
3127	bool "TURBOchannel support"
3128	depends on MACH_DECSTATION
3129	help
3130	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3131	  processors.  TURBOchannel programming specifications are available
3132	  at:
3133	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3134	  and:
3135	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3136	  Linux driver support status is documented at:
3137	  <http://www.linux-mips.org/wiki/DECstation>
3138
3139config MMU
3140	bool
3141	default y
3142
3143config ARCH_MMAP_RND_BITS_MIN
3144	default 12 if 64BIT
3145	default 8
3146
3147config ARCH_MMAP_RND_BITS_MAX
3148	default 18 if 64BIT
3149	default 15
3150
3151config ARCH_MMAP_RND_COMPAT_BITS_MIN
3152	default 8
3153
3154config ARCH_MMAP_RND_COMPAT_BITS_MAX
3155	default 15
3156
3157config I8253
3158	bool
3159	select CLKSRC_I8253
3160	select CLKEVT_I8253
3161	select MIPS_EXTERNAL_TIMER
3162endmenu
3163
3164config TRAD_SIGNALS
3165	bool
3166
3167config MIPS32_COMPAT
3168	bool
3169
3170config COMPAT
3171	bool
3172
3173config SYSVIPC_COMPAT
3174	bool
3175
3176config MIPS32_O32
3177	bool "Kernel support for o32 binaries"
3178	depends on 64BIT
3179	select ARCH_WANT_OLD_COMPAT_IPC
3180	select COMPAT
3181	select MIPS32_COMPAT
3182	select SYSVIPC_COMPAT if SYSVIPC
3183	help
3184	  Select this option if you want to run o32 binaries.  These are pure
3185	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3186	  existing binaries are in this format.
3187
3188	  If unsure, say Y.
3189
3190config MIPS32_N32
3191	bool "Kernel support for n32 binaries"
3192	depends on 64BIT
3193	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3194	select COMPAT
3195	select MIPS32_COMPAT
3196	select SYSVIPC_COMPAT if SYSVIPC
3197	help
3198	  Select this option if you want to run n32 binaries.  These are
3199	  64-bit binaries using 32-bit quantities for addressing and certain
3200	  data that would normally be 64-bit.  They are used in special
3201	  cases.
3202
3203	  If unsure, say N.
3204
3205menu "Power management options"
3206
3207config ARCH_HIBERNATION_POSSIBLE
3208	def_bool y
3209	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3210
3211config ARCH_SUSPEND_POSSIBLE
3212	def_bool y
3213	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3214
3215source "kernel/power/Kconfig"
3216
3217endmenu
3218
3219config MIPS_EXTERNAL_TIMER
3220	bool
3221
3222menu "CPU Power Management"
3223
3224if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3225source "drivers/cpufreq/Kconfig"
3226endif
3227
3228source "drivers/cpuidle/Kconfig"
3229
3230endmenu
3231
3232source "arch/mips/kvm/Kconfig"
3233
3234source "arch/mips/vdso/Kconfig"
3235