xref: /linux/arch/mips/Kconfig (revision bbcd53c960713507ae764bf81970651b5577b95a)
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_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
13	select ARCH_HAS_UBSAN_SANITIZE_ALL
14	select ARCH_HAS_GCOV_PROFILE_ALL
15	select ARCH_KEEP_MEMBLOCK
16	select ARCH_SUPPORTS_UPROBES
17	select ARCH_USE_BUILTIN_BSWAP
18	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
19	select ARCH_USE_MEMTEST
20	select ARCH_USE_QUEUED_RWLOCKS
21	select ARCH_USE_QUEUED_SPINLOCKS
22	select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
23	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
24	select ARCH_WANT_IPC_PARSE_VERSION
25	select ARCH_WANT_LD_ORPHAN_WARN
26	select BUILDTIME_TABLE_SORT
27	select CLONE_BACKWARDS
28	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
29	select CPU_PM if CPU_IDLE
30	select GENERIC_ATOMIC64 if !64BIT
31	select GENERIC_CMOS_UPDATE
32	select GENERIC_CPU_AUTOPROBE
33	select GENERIC_FIND_FIRST_BIT
34	select GENERIC_GETTIMEOFDAY
35	select GENERIC_IOMAP
36	select GENERIC_IRQ_PROBE
37	select GENERIC_IRQ_SHOW
38	select GENERIC_ISA_DMA if EISA
39	select GENERIC_LIB_ASHLDI3
40	select GENERIC_LIB_ASHRDI3
41	select GENERIC_LIB_CMPDI2
42	select GENERIC_LIB_LSHRDI3
43	select GENERIC_LIB_UCMPDI2
44	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
45	select GENERIC_SMP_IDLE_THREAD
46	select GENERIC_TIME_VSYSCALL
47	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
48	select HANDLE_DOMAIN_IRQ
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_CBPF_JIT if !64BIT && !CPU_MICROMIPS
59	select HAVE_CONTEXT_TRACKING
60	select HAVE_TIF_NOHZ
61	select HAVE_C_RECORDMCOUNT
62	select HAVE_DEBUG_KMEMLEAK
63	select HAVE_DEBUG_STACKOVERFLOW
64	select HAVE_DMA_CONTIGUOUS
65	select HAVE_DYNAMIC_FTRACE
66	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
67	select HAVE_EXIT_THREAD
68	select HAVE_FAST_GUP
69	select HAVE_FTRACE_MCOUNT_RECORD
70	select HAVE_FUNCTION_GRAPH_TRACER
71	select HAVE_FUNCTION_TRACER
72	select HAVE_GCC_PLUGINS
73	select HAVE_GENERIC_VDSO
74	select HAVE_IDE
75	select HAVE_IOREMAP_PROT
76	select HAVE_IRQ_EXIT_ON_IRQ_STACK
77	select HAVE_IRQ_TIME_ACCOUNTING
78	select HAVE_KPROBES
79	select HAVE_KRETPROBES
80	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
81	select HAVE_MOD_ARCH_SPECIFIC
82	select HAVE_NMI
83	select HAVE_PERF_EVENTS
84	select HAVE_PERF_REGS
85	select HAVE_PERF_USER_STACK_DUMP
86	select HAVE_REGS_AND_STACK_ACCESS_API
87	select HAVE_RSEQ
88	select HAVE_SPARSE_SYSCALL_NR
89	select HAVE_STACKPROTECTOR
90	select HAVE_SYSCALL_TRACEPOINTS
91	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
92	select IRQ_FORCED_THREADING
93	select ISA if EISA
94	select MODULES_USE_ELF_REL if MODULES
95	select MODULES_USE_ELF_RELA if MODULES && 64BIT
96	select PERF_USE_VMALLOC
97	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
98	select RTC_LIB
99	select SYSCTL_EXCEPTION_TRACE
100	select VIRT_TO_BUS
101	select ARCH_HAS_ELFCORE_COMPAT
102
103config MIPS_FIXUP_BIGPHYS_ADDR
104	bool
105
106config MIPS_GENERIC
107	bool
108
109config MACH_INGENIC
110	bool
111	select SYS_SUPPORTS_32BIT_KERNEL
112	select SYS_SUPPORTS_LITTLE_ENDIAN
113	select SYS_SUPPORTS_ZBOOT
114	select DMA_NONCOHERENT
115	select IRQ_MIPS_CPU
116	select PINCTRL
117	select GPIOLIB
118	select COMMON_CLK
119	select GENERIC_IRQ_CHIP
120	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
121	select USE_OF
122	select CPU_SUPPORTS_CPUFREQ
123	select MIPS_EXTERNAL_TIMER
124
125menu "Machine selection"
126
127choice
128	prompt "System type"
129	default MIPS_GENERIC_KERNEL
130
131config MIPS_GENERIC_KERNEL
132	bool "Generic board-agnostic MIPS kernel"
133	select ARCH_HAS_SETUP_DMA_OPS
134	select MIPS_GENERIC
135	select BOOT_RAW
136	select BUILTIN_DTB
137	select CEVT_R4K
138	select CLKSRC_MIPS_GIC
139	select COMMON_CLK
140	select CPU_MIPSR2_IRQ_EI
141	select CPU_MIPSR2_IRQ_VI
142	select CSRC_R4K
143	select DMA_NONCOHERENT
144	select HAVE_PCI
145	select IRQ_MIPS_CPU
146	select MIPS_AUTO_PFN_OFFSET
147	select MIPS_CPU_SCACHE
148	select MIPS_GIC
149	select MIPS_L1_CACHE_SHIFT_7
150	select NO_EXCEPT_FILL
151	select PCI_DRIVERS_GENERIC
152	select SMP_UP if SMP
153	select SWAP_IO_SPACE
154	select SYS_HAS_CPU_MIPS32_R1
155	select SYS_HAS_CPU_MIPS32_R2
156	select SYS_HAS_CPU_MIPS32_R6
157	select SYS_HAS_CPU_MIPS64_R1
158	select SYS_HAS_CPU_MIPS64_R2
159	select SYS_HAS_CPU_MIPS64_R6
160	select SYS_SUPPORTS_32BIT_KERNEL
161	select SYS_SUPPORTS_64BIT_KERNEL
162	select SYS_SUPPORTS_BIG_ENDIAN
163	select SYS_SUPPORTS_HIGHMEM
164	select SYS_SUPPORTS_LITTLE_ENDIAN
165	select SYS_SUPPORTS_MICROMIPS
166	select SYS_SUPPORTS_MIPS16
167	select SYS_SUPPORTS_MIPS_CPS
168	select SYS_SUPPORTS_MULTITHREADING
169	select SYS_SUPPORTS_RELOCATABLE
170	select SYS_SUPPORTS_SMARTMIPS
171	select SYS_SUPPORTS_ZBOOT
172	select UHI_BOOT
173	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
174	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
175	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
176	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
177	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
178	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
179	select USE_OF
180	help
181	  Select this to build a kernel which aims to support multiple boards,
182	  generally using a flattened device tree passed from the bootloader
183	  using the boot protocol defined in the UHI (Unified Hosting
184	  Interface) specification.
185
186config MIPS_ALCHEMY
187	bool "Alchemy processor based machines"
188	select PHYS_ADDR_T_64BIT
189	select CEVT_R4K
190	select CSRC_R4K
191	select IRQ_MIPS_CPU
192	select DMA_NONCOHERENT		# Au1000,1500,1100 aren't, rest is
193	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
194	select SYS_HAS_CPU_MIPS32_R1
195	select SYS_SUPPORTS_32BIT_KERNEL
196	select SYS_SUPPORTS_APM_EMULATION
197	select GPIOLIB
198	select SYS_SUPPORTS_ZBOOT
199	select COMMON_CLK
200
201config AR7
202	bool "Texas Instruments AR7"
203	select BOOT_ELF32
204	select DMA_NONCOHERENT
205	select CEVT_R4K
206	select CSRC_R4K
207	select IRQ_MIPS_CPU
208	select NO_EXCEPT_FILL
209	select SWAP_IO_SPACE
210	select SYS_HAS_CPU_MIPS32_R1
211	select SYS_HAS_EARLY_PRINTK
212	select SYS_SUPPORTS_32BIT_KERNEL
213	select SYS_SUPPORTS_LITTLE_ENDIAN
214	select SYS_SUPPORTS_MIPS16
215	select SYS_SUPPORTS_ZBOOT_UART16550
216	select GPIOLIB
217	select VLYNQ
218	select HAVE_LEGACY_CLK
219	help
220	  Support for the Texas Instruments AR7 System-on-a-Chip
221	  family: TNETD7100, 7200 and 7300.
222
223config ATH25
224	bool "Atheros AR231x/AR531x SoC support"
225	select CEVT_R4K
226	select CSRC_R4K
227	select DMA_NONCOHERENT
228	select IRQ_MIPS_CPU
229	select IRQ_DOMAIN
230	select SYS_HAS_CPU_MIPS32_R1
231	select SYS_SUPPORTS_BIG_ENDIAN
232	select SYS_SUPPORTS_32BIT_KERNEL
233	select SYS_HAS_EARLY_PRINTK
234	help
235	  Support for Atheros AR231x and Atheros AR531x based boards
236
237config ATH79
238	bool "Atheros AR71XX/AR724X/AR913X based boards"
239	select ARCH_HAS_RESET_CONTROLLER
240	select BOOT_RAW
241	select CEVT_R4K
242	select CSRC_R4K
243	select DMA_NONCOHERENT
244	select GPIOLIB
245	select PINCTRL
246	select COMMON_CLK
247	select IRQ_MIPS_CPU
248	select SYS_HAS_CPU_MIPS32_R2
249	select SYS_HAS_EARLY_PRINTK
250	select SYS_SUPPORTS_32BIT_KERNEL
251	select SYS_SUPPORTS_BIG_ENDIAN
252	select SYS_SUPPORTS_MIPS16
253	select SYS_SUPPORTS_ZBOOT_UART_PROM
254	select USE_OF
255	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
256	help
257	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
258
259config BMIPS_GENERIC
260	bool "Broadcom Generic BMIPS kernel"
261	select ARCH_HAS_RESET_CONTROLLER
262	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
263	select ARCH_HAS_PHYS_TO_DMA
264	select BOOT_RAW
265	select NO_EXCEPT_FILL
266	select USE_OF
267	select CEVT_R4K
268	select CSRC_R4K
269	select SYNC_R4K
270	select COMMON_CLK
271	select BCM6345_L1_IRQ
272	select BCM7038_L1_IRQ
273	select BCM7120_L2_IRQ
274	select BRCMSTB_L2_IRQ
275	select IRQ_MIPS_CPU
276	select DMA_NONCOHERENT
277	select SYS_SUPPORTS_32BIT_KERNEL
278	select SYS_SUPPORTS_LITTLE_ENDIAN
279	select SYS_SUPPORTS_BIG_ENDIAN
280	select SYS_SUPPORTS_HIGHMEM
281	select SYS_HAS_CPU_BMIPS32_3300
282	select SYS_HAS_CPU_BMIPS4350
283	select SYS_HAS_CPU_BMIPS4380
284	select SYS_HAS_CPU_BMIPS5000
285	select SWAP_IO_SPACE
286	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
287	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
288	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
289	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
290	select HARDIRQS_SW_RESEND
291	help
292	  Build a generic DT-based kernel image that boots on select
293	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
294	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
295	  must be set appropriately for your board.
296
297config BCM47XX
298	bool "Broadcom BCM47XX based boards"
299	select BOOT_RAW
300	select CEVT_R4K
301	select CSRC_R4K
302	select DMA_NONCOHERENT
303	select HAVE_PCI
304	select IRQ_MIPS_CPU
305	select SYS_HAS_CPU_MIPS32_R1
306	select NO_EXCEPT_FILL
307	select SYS_SUPPORTS_32BIT_KERNEL
308	select SYS_SUPPORTS_LITTLE_ENDIAN
309	select SYS_SUPPORTS_MIPS16
310	select SYS_SUPPORTS_ZBOOT
311	select SYS_HAS_EARLY_PRINTK
312	select USE_GENERIC_EARLY_PRINTK_8250
313	select GPIOLIB
314	select LEDS_GPIO_REGISTER
315	select BCM47XX_NVRAM
316	select BCM47XX_SPROM
317	select BCM47XX_SSB if !BCM47XX_BCMA
318	help
319	  Support for BCM47XX based boards
320
321config BCM63XX
322	bool "Broadcom BCM63XX based boards"
323	select BOOT_RAW
324	select CEVT_R4K
325	select CSRC_R4K
326	select SYNC_R4K
327	select DMA_NONCOHERENT
328	select IRQ_MIPS_CPU
329	select SYS_SUPPORTS_32BIT_KERNEL
330	select SYS_SUPPORTS_BIG_ENDIAN
331	select SYS_HAS_EARLY_PRINTK
332	select SWAP_IO_SPACE
333	select GPIOLIB
334	select MIPS_L1_CACHE_SHIFT_4
335	select CLKDEV_LOOKUP
336	select HAVE_LEGACY_CLK
337	help
338	  Support for BCM63XX based boards
339
340config MIPS_COBALT
341	bool "Cobalt Server"
342	select CEVT_R4K
343	select CSRC_R4K
344	select CEVT_GT641XX
345	select DMA_NONCOHERENT
346	select FORCE_PCI
347	select I8253
348	select I8259
349	select IRQ_MIPS_CPU
350	select IRQ_GT641XX
351	select PCI_GT64XXX_PCI0
352	select SYS_HAS_CPU_NEVADA
353	select SYS_HAS_EARLY_PRINTK
354	select SYS_SUPPORTS_32BIT_KERNEL
355	select SYS_SUPPORTS_64BIT_KERNEL
356	select SYS_SUPPORTS_LITTLE_ENDIAN
357	select USE_GENERIC_EARLY_PRINTK_8250
358
359config MACH_DECSTATION
360	bool "DECstations"
361	select BOOT_ELF32
362	select CEVT_DS1287
363	select CEVT_R4K if CPU_R4X00
364	select CSRC_IOASIC
365	select CSRC_R4K if CPU_R4X00
366	select CPU_DADDI_WORKAROUNDS if 64BIT
367	select CPU_R4000_WORKAROUNDS if 64BIT
368	select CPU_R4400_WORKAROUNDS if 64BIT
369	select DMA_NONCOHERENT
370	select NO_IOPORT_MAP
371	select IRQ_MIPS_CPU
372	select SYS_HAS_CPU_R3000
373	select SYS_HAS_CPU_R4X00
374	select SYS_SUPPORTS_32BIT_KERNEL
375	select SYS_SUPPORTS_64BIT_KERNEL
376	select SYS_SUPPORTS_LITTLE_ENDIAN
377	select SYS_SUPPORTS_128HZ
378	select SYS_SUPPORTS_256HZ
379	select SYS_SUPPORTS_1024HZ
380	select MIPS_L1_CACHE_SHIFT_4
381	help
382	  This enables support for DEC's MIPS based workstations.  For details
383	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
384	  DECstation porting pages on <http://decstation.unix-ag.org/>.
385
386	  If you have one of the following DECstation Models you definitely
387	  want to choose R4xx0 for the CPU Type:
388
389		DECstation 5000/50
390		DECstation 5000/150
391		DECstation 5000/260
392		DECsystem 5900/260
393
394	  otherwise choose R3000.
395
396config MACH_JAZZ
397	bool "Jazz family of machines"
398	select ARC_MEMORY
399	select ARC_PROMLIB
400	select ARCH_MIGHT_HAVE_PC_PARPORT
401	select ARCH_MIGHT_HAVE_PC_SERIO
402	select DMA_OPS
403	select FW_ARC
404	select FW_ARC32
405	select ARCH_MAY_HAVE_PC_FDC
406	select CEVT_R4K
407	select CSRC_R4K
408	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
409	select GENERIC_ISA_DMA
410	select HAVE_PCSPKR_PLATFORM
411	select IRQ_MIPS_CPU
412	select I8253
413	select I8259
414	select ISA
415	select SYS_HAS_CPU_R4X00
416	select SYS_SUPPORTS_32BIT_KERNEL
417	select SYS_SUPPORTS_64BIT_KERNEL
418	select SYS_SUPPORTS_100HZ
419	select SYS_SUPPORTS_LITTLE_ENDIAN
420	help
421	  This a family of machines based on the MIPS R4030 chipset which was
422	  used by several vendors to build RISC/os and Windows NT workstations.
423	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
424	  Olivetti M700-10 workstations.
425
426config MACH_INGENIC_SOC
427	bool "Ingenic SoC based machines"
428	select MIPS_GENERIC
429	select MACH_INGENIC
430	select SYS_SUPPORTS_ZBOOT_UART16550
431
432config LANTIQ
433	bool "Lantiq based platforms"
434	select DMA_NONCOHERENT
435	select IRQ_MIPS_CPU
436	select CEVT_R4K
437	select CSRC_R4K
438	select SYS_HAS_CPU_MIPS32_R1
439	select SYS_HAS_CPU_MIPS32_R2
440	select SYS_SUPPORTS_BIG_ENDIAN
441	select SYS_SUPPORTS_32BIT_KERNEL
442	select SYS_SUPPORTS_MIPS16
443	select SYS_SUPPORTS_MULTITHREADING
444	select SYS_SUPPORTS_VPE_LOADER
445	select SYS_HAS_EARLY_PRINTK
446	select GPIOLIB
447	select SWAP_IO_SPACE
448	select BOOT_RAW
449	select CLKDEV_LOOKUP
450	select HAVE_LEGACY_CLK
451	select USE_OF
452	select PINCTRL
453	select PINCTRL_LANTIQ
454	select ARCH_HAS_RESET_CONTROLLER
455	select RESET_CONTROLLER
456
457config MACH_LOONGSON32
458	bool "Loongson 32-bit family of machines"
459	select SYS_SUPPORTS_ZBOOT
460	help
461	  This enables support for the Loongson-1 family of machines.
462
463	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
464	  the Institute of Computing Technology (ICT), Chinese Academy of
465	  Sciences (CAS).
466
467config MACH_LOONGSON2EF
468	bool "Loongson-2E/F family of machines"
469	select SYS_SUPPORTS_ZBOOT
470	help
471	  This enables the support of early Loongson-2E/F family of machines.
472
473config MACH_LOONGSON64
474	bool "Loongson 64-bit family of machines"
475	select ARCH_SPARSEMEM_ENABLE
476	select ARCH_MIGHT_HAVE_PC_PARPORT
477	select ARCH_MIGHT_HAVE_PC_SERIO
478	select GENERIC_ISA_DMA_SUPPORT_BROKEN
479	select BOOT_ELF32
480	select BOARD_SCACHE
481	select CSRC_R4K
482	select CEVT_R4K
483	select CPU_HAS_WB
484	select FORCE_PCI
485	select ISA
486	select I8259
487	select IRQ_MIPS_CPU
488	select NO_EXCEPT_FILL
489	select NR_CPUS_DEFAULT_64
490	select USE_GENERIC_EARLY_PRINTK_8250
491	select PCI_DRIVERS_GENERIC
492	select SYS_HAS_CPU_LOONGSON64
493	select SYS_HAS_EARLY_PRINTK
494	select SYS_SUPPORTS_SMP
495	select SYS_SUPPORTS_HOTPLUG_CPU
496	select SYS_SUPPORTS_NUMA
497	select SYS_SUPPORTS_64BIT_KERNEL
498	select SYS_SUPPORTS_HIGHMEM
499	select SYS_SUPPORTS_LITTLE_ENDIAN
500	select SYS_SUPPORTS_ZBOOT
501	select SYS_SUPPORTS_RELOCATABLE
502	select ZONE_DMA32
503	select COMMON_CLK
504	select USE_OF
505	select BUILTIN_DTB
506	select PCI_HOST_GENERIC
507	help
508	  This enables the support of Loongson-2/3 family of machines.
509
510	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
511	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
512	  and Loongson-2F which will be removed), developed by the Institute
513	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
514
515config MACH_PISTACHIO
516	bool "IMG Pistachio SoC based boards"
517	select BOOT_ELF32
518	select BOOT_RAW
519	select CEVT_R4K
520	select CLKSRC_MIPS_GIC
521	select COMMON_CLK
522	select CSRC_R4K
523	select DMA_NONCOHERENT
524	select GPIOLIB
525	select IRQ_MIPS_CPU
526	select MFD_SYSCON
527	select MIPS_CPU_SCACHE
528	select MIPS_GIC
529	select PINCTRL
530	select REGULATOR
531	select SYS_HAS_CPU_MIPS32_R2
532	select SYS_SUPPORTS_32BIT_KERNEL
533	select SYS_SUPPORTS_LITTLE_ENDIAN
534	select SYS_SUPPORTS_MIPS_CPS
535	select SYS_SUPPORTS_MULTITHREADING
536	select SYS_SUPPORTS_RELOCATABLE
537	select SYS_SUPPORTS_ZBOOT
538	select SYS_HAS_EARLY_PRINTK
539	select USE_GENERIC_EARLY_PRINTK_8250
540	select USE_OF
541	help
542	  This enables support for the IMG Pistachio SoC platform.
543
544config MIPS_MALTA
545	bool "MIPS Malta board"
546	select ARCH_MAY_HAVE_PC_FDC
547	select ARCH_MIGHT_HAVE_PC_PARPORT
548	select ARCH_MIGHT_HAVE_PC_SERIO
549	select BOOT_ELF32
550	select BOOT_RAW
551	select BUILTIN_DTB
552	select CEVT_R4K
553	select CLKSRC_MIPS_GIC
554	select COMMON_CLK
555	select CSRC_R4K
556	select DMA_NONCOHERENT
557	select GENERIC_ISA_DMA
558	select HAVE_PCSPKR_PLATFORM
559	select HAVE_PCI
560	select I8253
561	select I8259
562	select IRQ_MIPS_CPU
563	select MIPS_BONITO64
564	select MIPS_CPU_SCACHE
565	select MIPS_GIC
566	select MIPS_L1_CACHE_SHIFT_6
567	select MIPS_MSC
568	select PCI_GT64XXX_PCI0
569	select SMP_UP if SMP
570	select SWAP_IO_SPACE
571	select SYS_HAS_CPU_MIPS32_R1
572	select SYS_HAS_CPU_MIPS32_R2
573	select SYS_HAS_CPU_MIPS32_R3_5
574	select SYS_HAS_CPU_MIPS32_R5
575	select SYS_HAS_CPU_MIPS32_R6
576	select SYS_HAS_CPU_MIPS64_R1
577	select SYS_HAS_CPU_MIPS64_R2
578	select SYS_HAS_CPU_MIPS64_R6
579	select SYS_HAS_CPU_NEVADA
580	select SYS_HAS_CPU_RM7000
581	select SYS_SUPPORTS_32BIT_KERNEL
582	select SYS_SUPPORTS_64BIT_KERNEL
583	select SYS_SUPPORTS_BIG_ENDIAN
584	select SYS_SUPPORTS_HIGHMEM
585	select SYS_SUPPORTS_LITTLE_ENDIAN
586	select SYS_SUPPORTS_MICROMIPS
587	select SYS_SUPPORTS_MIPS16
588	select SYS_SUPPORTS_MIPS_CMP
589	select SYS_SUPPORTS_MIPS_CPS
590	select SYS_SUPPORTS_MULTITHREADING
591	select SYS_SUPPORTS_RELOCATABLE
592	select SYS_SUPPORTS_SMARTMIPS
593	select SYS_SUPPORTS_VPE_LOADER
594	select SYS_SUPPORTS_ZBOOT
595	select USE_OF
596	select WAR_ICACHE_REFILLS
597	select ZONE_DMA32 if 64BIT
598	help
599	  This enables support for the MIPS Technologies Malta evaluation
600	  board.
601
602config MACH_PIC32
603	bool "Microchip PIC32 Family"
604	help
605	  This enables support for the Microchip PIC32 family of platforms.
606
607	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
608	  microcontrollers.
609
610config MACH_VR41XX
611	bool "NEC VR4100 series based machines"
612	select CEVT_R4K
613	select CSRC_R4K
614	select SYS_HAS_CPU_VR41XX
615	select SYS_SUPPORTS_MIPS16
616	select GPIOLIB
617
618config MACH_NINTENDO64
619	bool "Nintendo 64 console"
620	select CEVT_R4K
621	select CSRC_R4K
622	select SYS_HAS_CPU_R4300
623	select SYS_SUPPORTS_BIG_ENDIAN
624	select SYS_SUPPORTS_ZBOOT
625	select SYS_SUPPORTS_32BIT_KERNEL
626	select SYS_SUPPORTS_64BIT_KERNEL
627	select DMA_NONCOHERENT
628	select IRQ_MIPS_CPU
629
630config RALINK
631	bool "Ralink based machines"
632	select CEVT_R4K
633	select CSRC_R4K
634	select BOOT_RAW
635	select DMA_NONCOHERENT
636	select IRQ_MIPS_CPU
637	select USE_OF
638	select SYS_HAS_CPU_MIPS32_R1
639	select SYS_HAS_CPU_MIPS32_R2
640	select SYS_SUPPORTS_32BIT_KERNEL
641	select SYS_SUPPORTS_LITTLE_ENDIAN
642	select SYS_SUPPORTS_MIPS16
643	select SYS_SUPPORTS_ZBOOT
644	select SYS_HAS_EARLY_PRINTK
645	select CLKDEV_LOOKUP
646	select ARCH_HAS_RESET_CONTROLLER
647	select RESET_CONTROLLER
648
649config MACH_REALTEK_RTL
650	bool "Realtek RTL838x/RTL839x based machines"
651	select MIPS_GENERIC
652	select DMA_NONCOHERENT
653	select IRQ_MIPS_CPU
654	select CSRC_R4K
655	select CEVT_R4K
656	select SYS_HAS_CPU_MIPS32_R1
657	select SYS_HAS_CPU_MIPS32_R2
658	select SYS_SUPPORTS_BIG_ENDIAN
659	select SYS_SUPPORTS_32BIT_KERNEL
660	select SYS_SUPPORTS_MIPS16
661	select SYS_SUPPORTS_MULTITHREADING
662	select SYS_SUPPORTS_VPE_LOADER
663	select SYS_HAS_EARLY_PRINTK
664	select SYS_HAS_EARLY_PRINTK_8250
665	select USE_GENERIC_EARLY_PRINTK_8250
666	select BOOT_RAW
667	select PINCTRL
668	select USE_OF
669
670config SGI_IP22
671	bool "SGI IP22 (Indy/Indigo2)"
672	select ARC_MEMORY
673	select ARC_PROMLIB
674	select FW_ARC
675	select FW_ARC32
676	select ARCH_MIGHT_HAVE_PC_SERIO
677	select BOOT_ELF32
678	select CEVT_R4K
679	select CSRC_R4K
680	select DEFAULT_SGI_PARTITION
681	select DMA_NONCOHERENT
682	select HAVE_EISA
683	select I8253
684	select I8259
685	select IP22_CPU_SCACHE
686	select IRQ_MIPS_CPU
687	select GENERIC_ISA_DMA_SUPPORT_BROKEN
688	select SGI_HAS_I8042
689	select SGI_HAS_INDYDOG
690	select SGI_HAS_HAL2
691	select SGI_HAS_SEEQ
692	select SGI_HAS_WD93
693	select SGI_HAS_ZILOG
694	select SWAP_IO_SPACE
695	select SYS_HAS_CPU_R4X00
696	select SYS_HAS_CPU_R5000
697	select SYS_HAS_EARLY_PRINTK
698	select SYS_SUPPORTS_32BIT_KERNEL
699	select SYS_SUPPORTS_64BIT_KERNEL
700	select SYS_SUPPORTS_BIG_ENDIAN
701	select WAR_R4600_V1_INDEX_ICACHEOP
702	select WAR_R4600_V1_HIT_CACHEOP
703	select WAR_R4600_V2_HIT_CACHEOP
704	select MIPS_L1_CACHE_SHIFT_7
705	help
706	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
707	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
708	  that runs on these, say Y here.
709
710config SGI_IP27
711	bool "SGI IP27 (Origin200/2000)"
712	select ARCH_HAS_PHYS_TO_DMA
713	select ARCH_SPARSEMEM_ENABLE
714	select FW_ARC
715	select FW_ARC64
716	select ARC_CMDLINE_ONLY
717	select BOOT_ELF64
718	select DEFAULT_SGI_PARTITION
719	select FORCE_PCI
720	select SYS_HAS_EARLY_PRINTK
721	select HAVE_PCI
722	select IRQ_MIPS_CPU
723	select IRQ_DOMAIN_HIERARCHY
724	select NR_CPUS_DEFAULT_64
725	select PCI_DRIVERS_GENERIC
726	select PCI_XTALK_BRIDGE
727	select SYS_HAS_CPU_R10000
728	select SYS_SUPPORTS_64BIT_KERNEL
729	select SYS_SUPPORTS_BIG_ENDIAN
730	select SYS_SUPPORTS_NUMA
731	select SYS_SUPPORTS_SMP
732	select WAR_R10000_LLSC
733	select MIPS_L1_CACHE_SHIFT_7
734	select NUMA
735	help
736	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
737	  workstations.  To compile a Linux kernel that runs on these, say Y
738	  here.
739
740config SGI_IP28
741	bool "SGI IP28 (Indigo2 R10k)"
742	select ARC_MEMORY
743	select ARC_PROMLIB
744	select FW_ARC
745	select FW_ARC64
746	select ARCH_MIGHT_HAVE_PC_SERIO
747	select BOOT_ELF64
748	select CEVT_R4K
749	select CSRC_R4K
750	select DEFAULT_SGI_PARTITION
751	select DMA_NONCOHERENT
752	select GENERIC_ISA_DMA_SUPPORT_BROKEN
753	select IRQ_MIPS_CPU
754	select HAVE_EISA
755	select I8253
756	select I8259
757	select SGI_HAS_I8042
758	select SGI_HAS_INDYDOG
759	select SGI_HAS_HAL2
760	select SGI_HAS_SEEQ
761	select SGI_HAS_WD93
762	select SGI_HAS_ZILOG
763	select SWAP_IO_SPACE
764	select SYS_HAS_CPU_R10000
765	select SYS_HAS_EARLY_PRINTK
766	select SYS_SUPPORTS_64BIT_KERNEL
767	select SYS_SUPPORTS_BIG_ENDIAN
768	select WAR_R10000_LLSC
769	select MIPS_L1_CACHE_SHIFT_7
770	help
771	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
772	  kernel that runs on these, say Y here.
773
774config SGI_IP30
775	bool "SGI IP30 (Octane/Octane2)"
776	select ARCH_HAS_PHYS_TO_DMA
777	select FW_ARC
778	select FW_ARC64
779	select BOOT_ELF64
780	select CEVT_R4K
781	select CSRC_R4K
782	select FORCE_PCI
783	select SYNC_R4K if SMP
784	select ZONE_DMA32
785	select HAVE_PCI
786	select IRQ_MIPS_CPU
787	select IRQ_DOMAIN_HIERARCHY
788	select NR_CPUS_DEFAULT_2
789	select PCI_DRIVERS_GENERIC
790	select PCI_XTALK_BRIDGE
791	select SYS_HAS_EARLY_PRINTK
792	select SYS_HAS_CPU_R10000
793	select SYS_SUPPORTS_64BIT_KERNEL
794	select SYS_SUPPORTS_BIG_ENDIAN
795	select SYS_SUPPORTS_SMP
796	select WAR_R10000_LLSC
797	select MIPS_L1_CACHE_SHIFT_7
798	select ARC_MEMORY
799	help
800	  These are the SGI Octane and Octane2 graphics workstations.  To
801	  compile a Linux kernel that runs on these, say Y here.
802
803config SGI_IP32
804	bool "SGI IP32 (O2)"
805	select ARC_MEMORY
806	select ARC_PROMLIB
807	select ARCH_HAS_PHYS_TO_DMA
808	select FW_ARC
809	select FW_ARC32
810	select BOOT_ELF32
811	select CEVT_R4K
812	select CSRC_R4K
813	select DMA_NONCOHERENT
814	select HAVE_PCI
815	select IRQ_MIPS_CPU
816	select R5000_CPU_SCACHE
817	select RM7000_CPU_SCACHE
818	select SYS_HAS_CPU_R5000
819	select SYS_HAS_CPU_R10000 if BROKEN
820	select SYS_HAS_CPU_RM7000
821	select SYS_HAS_CPU_NEVADA
822	select SYS_SUPPORTS_64BIT_KERNEL
823	select SYS_SUPPORTS_BIG_ENDIAN
824	select WAR_ICACHE_REFILLS
825	help
826	  If you want this kernel to run on SGI O2 workstation, say Y here.
827
828config SIBYTE_CRHINE
829	bool "Sibyte BCM91120C-CRhine"
830	select BOOT_ELF32
831	select SIBYTE_BCM1120
832	select SWAP_IO_SPACE
833	select SYS_HAS_CPU_SB1
834	select SYS_SUPPORTS_BIG_ENDIAN
835	select SYS_SUPPORTS_LITTLE_ENDIAN
836
837config SIBYTE_CARMEL
838	bool "Sibyte BCM91120x-Carmel"
839	select BOOT_ELF32
840	select SIBYTE_BCM1120
841	select SWAP_IO_SPACE
842	select SYS_HAS_CPU_SB1
843	select SYS_SUPPORTS_BIG_ENDIAN
844	select SYS_SUPPORTS_LITTLE_ENDIAN
845
846config SIBYTE_CRHONE
847	bool "Sibyte BCM91125C-CRhone"
848	select BOOT_ELF32
849	select SIBYTE_BCM1125
850	select SWAP_IO_SPACE
851	select SYS_HAS_CPU_SB1
852	select SYS_SUPPORTS_BIG_ENDIAN
853	select SYS_SUPPORTS_HIGHMEM
854	select SYS_SUPPORTS_LITTLE_ENDIAN
855
856config SIBYTE_RHONE
857	bool "Sibyte BCM91125E-Rhone"
858	select BOOT_ELF32
859	select SIBYTE_BCM1125H
860	select SWAP_IO_SPACE
861	select SYS_HAS_CPU_SB1
862	select SYS_SUPPORTS_BIG_ENDIAN
863	select SYS_SUPPORTS_LITTLE_ENDIAN
864
865config SIBYTE_SWARM
866	bool "Sibyte BCM91250A-SWARM"
867	select BOOT_ELF32
868	select HAVE_PATA_PLATFORM
869	select SIBYTE_SB1250
870	select SWAP_IO_SPACE
871	select SYS_HAS_CPU_SB1
872	select SYS_SUPPORTS_BIG_ENDIAN
873	select SYS_SUPPORTS_HIGHMEM
874	select SYS_SUPPORTS_LITTLE_ENDIAN
875	select ZONE_DMA32 if 64BIT
876	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
877
878config SIBYTE_LITTLESUR
879	bool "Sibyte BCM91250C2-LittleSur"
880	select BOOT_ELF32
881	select HAVE_PATA_PLATFORM
882	select SIBYTE_SB1250
883	select SWAP_IO_SPACE
884	select SYS_HAS_CPU_SB1
885	select SYS_SUPPORTS_BIG_ENDIAN
886	select SYS_SUPPORTS_HIGHMEM
887	select SYS_SUPPORTS_LITTLE_ENDIAN
888	select ZONE_DMA32 if 64BIT
889
890config SIBYTE_SENTOSA
891	bool "Sibyte BCM91250E-Sentosa"
892	select BOOT_ELF32
893	select SIBYTE_SB1250
894	select SWAP_IO_SPACE
895	select SYS_HAS_CPU_SB1
896	select SYS_SUPPORTS_BIG_ENDIAN
897	select SYS_SUPPORTS_LITTLE_ENDIAN
898	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
899
900config SIBYTE_BIGSUR
901	bool "Sibyte BCM91480B-BigSur"
902	select BOOT_ELF32
903	select NR_CPUS_DEFAULT_4
904	select SIBYTE_BCM1x80
905	select SWAP_IO_SPACE
906	select SYS_HAS_CPU_SB1
907	select SYS_SUPPORTS_BIG_ENDIAN
908	select SYS_SUPPORTS_HIGHMEM
909	select SYS_SUPPORTS_LITTLE_ENDIAN
910	select ZONE_DMA32 if 64BIT
911	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
912
913config SNI_RM
914	bool "SNI RM200/300/400"
915	select ARC_MEMORY
916	select ARC_PROMLIB
917	select FW_ARC if CPU_LITTLE_ENDIAN
918	select FW_ARC32 if CPU_LITTLE_ENDIAN
919	select FW_SNIPROM if CPU_BIG_ENDIAN
920	select ARCH_MAY_HAVE_PC_FDC
921	select ARCH_MIGHT_HAVE_PC_PARPORT
922	select ARCH_MIGHT_HAVE_PC_SERIO
923	select BOOT_ELF32
924	select CEVT_R4K
925	select CSRC_R4K
926	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
927	select DMA_NONCOHERENT
928	select GENERIC_ISA_DMA
929	select HAVE_EISA
930	select HAVE_PCSPKR_PLATFORM
931	select HAVE_PCI
932	select IRQ_MIPS_CPU
933	select I8253
934	select I8259
935	select ISA
936	select MIPS_L1_CACHE_SHIFT_6
937	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
938	select SYS_HAS_CPU_R4X00
939	select SYS_HAS_CPU_R5000
940	select SYS_HAS_CPU_R10000
941	select R5000_CPU_SCACHE
942	select SYS_HAS_EARLY_PRINTK
943	select SYS_SUPPORTS_32BIT_KERNEL
944	select SYS_SUPPORTS_64BIT_KERNEL
945	select SYS_SUPPORTS_BIG_ENDIAN
946	select SYS_SUPPORTS_HIGHMEM
947	select SYS_SUPPORTS_LITTLE_ENDIAN
948	select WAR_R4600_V2_HIT_CACHEOP
949	help
950	  The SNI RM200/300/400 are MIPS-based machines manufactured by
951	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
952	  Technology and now in turn merged with Fujitsu.  Say Y here to
953	  support this machine type.
954
955config MACH_TX39XX
956	bool "Toshiba TX39 series based machines"
957
958config MACH_TX49XX
959	bool "Toshiba TX49 series based machines"
960	select WAR_TX49XX_ICACHE_INDEX_INV
961
962config MIKROTIK_RB532
963	bool "Mikrotik RB532 boards"
964	select CEVT_R4K
965	select CSRC_R4K
966	select DMA_NONCOHERENT
967	select HAVE_PCI
968	select IRQ_MIPS_CPU
969	select SYS_HAS_CPU_MIPS32_R1
970	select SYS_SUPPORTS_32BIT_KERNEL
971	select SYS_SUPPORTS_LITTLE_ENDIAN
972	select SWAP_IO_SPACE
973	select BOOT_RAW
974	select GPIOLIB
975	select MIPS_L1_CACHE_SHIFT_4
976	help
977	  Support the Mikrotik(tm) RouterBoard 532 series,
978	  based on the IDT RC32434 SoC.
979
980config CAVIUM_OCTEON_SOC
981	bool "Cavium Networks Octeon SoC based boards"
982	select CEVT_R4K
983	select ARCH_HAS_PHYS_TO_DMA
984	select HAVE_RAPIDIO
985	select PHYS_ADDR_T_64BIT
986	select SYS_SUPPORTS_64BIT_KERNEL
987	select SYS_SUPPORTS_BIG_ENDIAN
988	select EDAC_SUPPORT
989	select EDAC_ATOMIC_SCRUB
990	select SYS_SUPPORTS_LITTLE_ENDIAN
991	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
992	select SYS_HAS_EARLY_PRINTK
993	select SYS_HAS_CPU_CAVIUM_OCTEON
994	select HAVE_PCI
995	select HAVE_PLAT_DELAY
996	select HAVE_PLAT_FW_INIT_CMDLINE
997	select HAVE_PLAT_MEMCPY
998	select ZONE_DMA32
999	select HOLES_IN_ZONE
1000	select GPIOLIB
1001	select USE_OF
1002	select ARCH_SPARSEMEM_ENABLE
1003	select SYS_SUPPORTS_SMP
1004	select NR_CPUS_DEFAULT_64
1005	select MIPS_NR_CPU_NR_MAP_1024
1006	select BUILTIN_DTB
1007	select MTD
1008	select MTD_COMPLEX_MAPPINGS
1009	select SWIOTLB
1010	select SYS_SUPPORTS_RELOCATABLE
1011	help
1012	  This option supports all of the Octeon reference boards from Cavium
1013	  Networks. It builds a kernel that dynamically determines the Octeon
1014	  CPU type and supports all known board reference implementations.
1015	  Some of the supported boards are:
1016		EBT3000
1017		EBH3000
1018		EBH3100
1019		Thunder
1020		Kodama
1021		Hikari
1022	  Say Y here for most Octeon reference boards.
1023
1024config NLM_XLR_BOARD
1025	bool "Netlogic XLR/XLS based systems"
1026	select BOOT_ELF32
1027	select NLM_COMMON
1028	select SYS_HAS_CPU_XLR
1029	select SYS_SUPPORTS_SMP
1030	select HAVE_PCI
1031	select SWAP_IO_SPACE
1032	select SYS_SUPPORTS_32BIT_KERNEL
1033	select SYS_SUPPORTS_64BIT_KERNEL
1034	select PHYS_ADDR_T_64BIT
1035	select SYS_SUPPORTS_BIG_ENDIAN
1036	select SYS_SUPPORTS_HIGHMEM
1037	select NR_CPUS_DEFAULT_32
1038	select CEVT_R4K
1039	select CSRC_R4K
1040	select IRQ_MIPS_CPU
1041	select ZONE_DMA32 if 64BIT
1042	select SYNC_R4K
1043	select SYS_HAS_EARLY_PRINTK
1044	select SYS_SUPPORTS_ZBOOT
1045	select SYS_SUPPORTS_ZBOOT_UART16550
1046	help
1047	  Support for systems based on Netlogic XLR and XLS processors.
1048	  Say Y here if you have a XLR or XLS based board.
1049
1050config NLM_XLP_BOARD
1051	bool "Netlogic XLP based systems"
1052	select BOOT_ELF32
1053	select NLM_COMMON
1054	select SYS_HAS_CPU_XLP
1055	select SYS_SUPPORTS_SMP
1056	select HAVE_PCI
1057	select SYS_SUPPORTS_32BIT_KERNEL
1058	select SYS_SUPPORTS_64BIT_KERNEL
1059	select PHYS_ADDR_T_64BIT
1060	select GPIOLIB
1061	select SYS_SUPPORTS_BIG_ENDIAN
1062	select SYS_SUPPORTS_LITTLE_ENDIAN
1063	select SYS_SUPPORTS_HIGHMEM
1064	select NR_CPUS_DEFAULT_32
1065	select CEVT_R4K
1066	select CSRC_R4K
1067	select IRQ_MIPS_CPU
1068	select ZONE_DMA32 if 64BIT
1069	select SYNC_R4K
1070	select SYS_HAS_EARLY_PRINTK
1071	select USE_OF
1072	select SYS_SUPPORTS_ZBOOT
1073	select SYS_SUPPORTS_ZBOOT_UART16550
1074	help
1075	  This board is based on Netlogic XLP Processor.
1076	  Say Y here if you have a XLP based board.
1077
1078endchoice
1079
1080source "arch/mips/alchemy/Kconfig"
1081source "arch/mips/ath25/Kconfig"
1082source "arch/mips/ath79/Kconfig"
1083source "arch/mips/bcm47xx/Kconfig"
1084source "arch/mips/bcm63xx/Kconfig"
1085source "arch/mips/bmips/Kconfig"
1086source "arch/mips/generic/Kconfig"
1087source "arch/mips/ingenic/Kconfig"
1088source "arch/mips/jazz/Kconfig"
1089source "arch/mips/lantiq/Kconfig"
1090source "arch/mips/pic32/Kconfig"
1091source "arch/mips/pistachio/Kconfig"
1092source "arch/mips/ralink/Kconfig"
1093source "arch/mips/sgi-ip27/Kconfig"
1094source "arch/mips/sibyte/Kconfig"
1095source "arch/mips/txx9/Kconfig"
1096source "arch/mips/vr41xx/Kconfig"
1097source "arch/mips/cavium-octeon/Kconfig"
1098source "arch/mips/loongson2ef/Kconfig"
1099source "arch/mips/loongson32/Kconfig"
1100source "arch/mips/loongson64/Kconfig"
1101source "arch/mips/netlogic/Kconfig"
1102
1103endmenu
1104
1105config GENERIC_HWEIGHT
1106	bool
1107	default y
1108
1109config GENERIC_CALIBRATE_DELAY
1110	bool
1111	default y
1112
1113config SCHED_OMIT_FRAME_POINTER
1114	bool
1115	default y
1116
1117#
1118# Select some configuration options automatically based on user selections.
1119#
1120config FW_ARC
1121	bool
1122
1123config ARCH_MAY_HAVE_PC_FDC
1124	bool
1125
1126config BOOT_RAW
1127	bool
1128
1129config CEVT_BCM1480
1130	bool
1131
1132config CEVT_DS1287
1133	bool
1134
1135config CEVT_GT641XX
1136	bool
1137
1138config CEVT_R4K
1139	bool
1140
1141config CEVT_SB1250
1142	bool
1143
1144config CEVT_TXX9
1145	bool
1146
1147config CSRC_BCM1480
1148	bool
1149
1150config CSRC_IOASIC
1151	bool
1152
1153config CSRC_R4K
1154	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1155	bool
1156
1157config CSRC_SB1250
1158	bool
1159
1160config MIPS_CLOCK_VSYSCALL
1161	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1162
1163config GPIO_TXX9
1164	select GPIOLIB
1165	bool
1166
1167config FW_CFE
1168	bool
1169
1170config ARCH_SUPPORTS_UPROBES
1171	bool
1172
1173config DMA_PERDEV_COHERENT
1174	bool
1175	select ARCH_HAS_SETUP_DMA_OPS
1176	select DMA_NONCOHERENT
1177
1178config DMA_NONCOHERENT
1179	bool
1180	#
1181	# MIPS allows mixing "slightly different" Cacheability and Coherency
1182	# Attribute bits.  It is believed that the uncached access through
1183	# KSEG1 and the implementation specific "uncached accelerated" used
1184	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1185	# significant advantages.
1186	#
1187	select ARCH_HAS_DMA_WRITE_COMBINE
1188	select ARCH_HAS_DMA_PREP_COHERENT
1189	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1190	select ARCH_HAS_DMA_SET_UNCACHED
1191	select DMA_NONCOHERENT_MMAP
1192	select NEED_DMA_MAP_STATE
1193
1194config SYS_HAS_EARLY_PRINTK
1195	bool
1196
1197config SYS_SUPPORTS_HOTPLUG_CPU
1198	bool
1199
1200config MIPS_BONITO64
1201	bool
1202
1203config MIPS_MSC
1204	bool
1205
1206config SYNC_R4K
1207	bool
1208
1209config NO_IOPORT_MAP
1210	def_bool n
1211
1212config GENERIC_CSUM
1213	def_bool CPU_NO_LOAD_STORE_LR
1214
1215config GENERIC_ISA_DMA
1216	bool
1217	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1218	select ISA_DMA_API
1219
1220config GENERIC_ISA_DMA_SUPPORT_BROKEN
1221	bool
1222	select GENERIC_ISA_DMA
1223
1224config HAVE_PLAT_DELAY
1225	bool
1226
1227config HAVE_PLAT_FW_INIT_CMDLINE
1228	bool
1229
1230config HAVE_PLAT_MEMCPY
1231	bool
1232
1233config ISA_DMA_API
1234	bool
1235
1236config HOLES_IN_ZONE
1237	bool
1238
1239config SYS_SUPPORTS_RELOCATABLE
1240	bool
1241	help
1242	  Selected if the platform supports relocating the kernel.
1243	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1244	  to allow access to command line and entropy sources.
1245
1246config MIPS_CBPF_JIT
1247	def_bool y
1248	depends on BPF_JIT && HAVE_CBPF_JIT
1249
1250config MIPS_EBPF_JIT
1251	def_bool y
1252	depends on BPF_JIT && HAVE_EBPF_JIT
1253
1254
1255#
1256# Endianness selection.  Sufficiently obscure so many users don't know what to
1257# answer,so we try hard to limit the available choices.  Also the use of a
1258# choice statement should be more obvious to the user.
1259#
1260choice
1261	prompt "Endianness selection"
1262	help
1263	  Some MIPS machines can be configured for either little or big endian
1264	  byte order. These modes require different kernels and a different
1265	  Linux distribution.  In general there is one preferred byteorder for a
1266	  particular system but some systems are just as commonly used in the
1267	  one or the other endianness.
1268
1269config CPU_BIG_ENDIAN
1270	bool "Big endian"
1271	depends on SYS_SUPPORTS_BIG_ENDIAN
1272
1273config CPU_LITTLE_ENDIAN
1274	bool "Little endian"
1275	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1276
1277endchoice
1278
1279config EXPORT_UASM
1280	bool
1281
1282config SYS_SUPPORTS_APM_EMULATION
1283	bool
1284
1285config SYS_SUPPORTS_BIG_ENDIAN
1286	bool
1287
1288config SYS_SUPPORTS_LITTLE_ENDIAN
1289	bool
1290
1291config MIPS_HUGE_TLB_SUPPORT
1292	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1293
1294config IRQ_MSP_SLP
1295	bool
1296
1297config IRQ_MSP_CIC
1298	bool
1299
1300config IRQ_TXX9
1301	bool
1302
1303config IRQ_GT641XX
1304	bool
1305
1306config PCI_GT64XXX_PCI0
1307	bool
1308
1309config PCI_XTALK_BRIDGE
1310	bool
1311
1312config NO_EXCEPT_FILL
1313	bool
1314
1315config MIPS_SPRAM
1316	bool
1317
1318config SWAP_IO_SPACE
1319	bool
1320
1321config SGI_HAS_INDYDOG
1322	bool
1323
1324config SGI_HAS_HAL2
1325	bool
1326
1327config SGI_HAS_SEEQ
1328	bool
1329
1330config SGI_HAS_WD93
1331	bool
1332
1333config SGI_HAS_ZILOG
1334	bool
1335
1336config SGI_HAS_I8042
1337	bool
1338
1339config DEFAULT_SGI_PARTITION
1340	bool
1341
1342config FW_ARC32
1343	bool
1344
1345config FW_SNIPROM
1346	bool
1347
1348config BOOT_ELF32
1349	bool
1350
1351config MIPS_L1_CACHE_SHIFT_4
1352	bool
1353
1354config MIPS_L1_CACHE_SHIFT_5
1355	bool
1356
1357config MIPS_L1_CACHE_SHIFT_6
1358	bool
1359
1360config MIPS_L1_CACHE_SHIFT_7
1361	bool
1362
1363config MIPS_L1_CACHE_SHIFT
1364	int
1365	default "7" if MIPS_L1_CACHE_SHIFT_7
1366	default "6" if MIPS_L1_CACHE_SHIFT_6
1367	default "5" if MIPS_L1_CACHE_SHIFT_5
1368	default "4" if MIPS_L1_CACHE_SHIFT_4
1369	default "5"
1370
1371config ARC_CMDLINE_ONLY
1372	bool
1373
1374config ARC_CONSOLE
1375	bool "ARC console support"
1376	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1377
1378config ARC_MEMORY
1379	bool
1380
1381config ARC_PROMLIB
1382	bool
1383
1384config FW_ARC64
1385	bool
1386
1387config BOOT_ELF64
1388	bool
1389
1390menu "CPU selection"
1391
1392choice
1393	prompt "CPU type"
1394	default CPU_R4X00
1395
1396config CPU_LOONGSON64
1397	bool "Loongson 64-bit CPU"
1398	depends on SYS_HAS_CPU_LOONGSON64
1399	select ARCH_HAS_PHYS_TO_DMA
1400	select CPU_MIPSR2
1401	select CPU_HAS_PREFETCH
1402	select CPU_SUPPORTS_64BIT_KERNEL
1403	select CPU_SUPPORTS_HIGHMEM
1404	select CPU_SUPPORTS_HUGEPAGES
1405	select CPU_SUPPORTS_MSA
1406	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1407	select CPU_MIPSR2_IRQ_VI
1408	select WEAK_ORDERING
1409	select WEAK_REORDERING_BEYOND_LLSC
1410	select MIPS_ASID_BITS_VARIABLE
1411	select MIPS_PGD_C0_CONTEXT
1412	select MIPS_L1_CACHE_SHIFT_6
1413	select GPIOLIB
1414	select SWIOTLB
1415	select HAVE_KVM
1416	help
1417		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1418		cores implements the MIPS64R2 instruction set with many extensions,
1419		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1420		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1421		Loongson-2E/2F is not covered here and will be removed in future.
1422
1423config LOONGSON3_ENHANCEMENT
1424	bool "New Loongson-3 CPU Enhancements"
1425	default n
1426	depends on CPU_LOONGSON64
1427	help
1428	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1429	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1430	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1431	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1432	  Fast TLB refill support, etc.
1433
1434	  This option enable those enhancements which are not probed at run
1435	  time. If you want a generic kernel to run on all Loongson 3 machines,
1436	  please say 'N' here. If you want a high-performance kernel to run on
1437	  new Loongson-3 machines only, please say 'Y' here.
1438
1439config CPU_LOONGSON3_WORKAROUNDS
1440	bool "Old Loongson-3 LLSC Workarounds"
1441	default y if SMP
1442	depends on CPU_LOONGSON64
1443	help
1444	  Loongson-3 processors have the llsc issues which require workarounds.
1445	  Without workarounds the system may hang unexpectedly.
1446
1447	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1448	  The workarounds have no significant side effect on them but may
1449	  decrease the performance of the system so this option should be
1450	  disabled unless the kernel is intended to be run on old systems.
1451
1452	  If unsure, please say Y.
1453
1454config CPU_LOONGSON3_CPUCFG_EMULATION
1455	bool "Emulate the CPUCFG instruction on older Loongson cores"
1456	default y
1457	depends on CPU_LOONGSON64
1458	help
1459	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1460	  userland to query CPU capabilities, much like CPUID on x86. This
1461	  option provides emulation of the instruction on older Loongson
1462	  cores, back to Loongson-3A1000.
1463
1464	  If unsure, please say Y.
1465
1466config CPU_LOONGSON2E
1467	bool "Loongson 2E"
1468	depends on SYS_HAS_CPU_LOONGSON2E
1469	select CPU_LOONGSON2EF
1470	help
1471	  The Loongson 2E processor implements the MIPS III instruction set
1472	  with many extensions.
1473
1474	  It has an internal FPGA northbridge, which is compatible to
1475	  bonito64.
1476
1477config CPU_LOONGSON2F
1478	bool "Loongson 2F"
1479	depends on SYS_HAS_CPU_LOONGSON2F
1480	select CPU_LOONGSON2EF
1481	select GPIOLIB
1482	help
1483	  The Loongson 2F processor implements the MIPS III instruction set
1484	  with many extensions.
1485
1486	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1487	  have a similar programming interface with FPGA northbridge used in
1488	  Loongson2E.
1489
1490config CPU_LOONGSON1B
1491	bool "Loongson 1B"
1492	depends on SYS_HAS_CPU_LOONGSON1B
1493	select CPU_LOONGSON32
1494	select LEDS_GPIO_REGISTER
1495	help
1496	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1497	  Release 1 instruction set and part of the MIPS32 Release 2
1498	  instruction set.
1499
1500config CPU_LOONGSON1C
1501	bool "Loongson 1C"
1502	depends on SYS_HAS_CPU_LOONGSON1C
1503	select CPU_LOONGSON32
1504	select LEDS_GPIO_REGISTER
1505	help
1506	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1507	  Release 1 instruction set and part of the MIPS32 Release 2
1508	  instruction set.
1509
1510config CPU_MIPS32_R1
1511	bool "MIPS32 Release 1"
1512	depends on SYS_HAS_CPU_MIPS32_R1
1513	select CPU_HAS_PREFETCH
1514	select CPU_SUPPORTS_32BIT_KERNEL
1515	select CPU_SUPPORTS_HIGHMEM
1516	help
1517	  Choose this option to build a kernel for release 1 or later of the
1518	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1519	  MIPS processor are based on a MIPS32 processor.  If you know the
1520	  specific type of processor in your system, choose those that one
1521	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1522	  Release 2 of the MIPS32 architecture is available since several
1523	  years so chances are you even have a MIPS32 Release 2 processor
1524	  in which case you should choose CPU_MIPS32_R2 instead for better
1525	  performance.
1526
1527config CPU_MIPS32_R2
1528	bool "MIPS32 Release 2"
1529	depends on SYS_HAS_CPU_MIPS32_R2
1530	select CPU_HAS_PREFETCH
1531	select CPU_SUPPORTS_32BIT_KERNEL
1532	select CPU_SUPPORTS_HIGHMEM
1533	select CPU_SUPPORTS_MSA
1534	select HAVE_KVM
1535	help
1536	  Choose this option to build a kernel for release 2 or later of the
1537	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1538	  MIPS processor are based on a MIPS32 processor.  If you know the
1539	  specific type of processor in your system, choose those that one
1540	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1541
1542config CPU_MIPS32_R5
1543	bool "MIPS32 Release 5"
1544	depends on SYS_HAS_CPU_MIPS32_R5
1545	select CPU_HAS_PREFETCH
1546	select CPU_SUPPORTS_32BIT_KERNEL
1547	select CPU_SUPPORTS_HIGHMEM
1548	select CPU_SUPPORTS_MSA
1549	select HAVE_KVM
1550	select MIPS_O32_FP64_SUPPORT
1551	help
1552	  Choose this option to build a kernel for release 5 or later of the
1553	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1554	  family, are based on a MIPS32r5 processor. If you own an older
1555	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1556
1557config CPU_MIPS32_R6
1558	bool "MIPS32 Release 6"
1559	depends on SYS_HAS_CPU_MIPS32_R6
1560	select CPU_HAS_PREFETCH
1561	select CPU_NO_LOAD_STORE_LR
1562	select CPU_SUPPORTS_32BIT_KERNEL
1563	select CPU_SUPPORTS_HIGHMEM
1564	select CPU_SUPPORTS_MSA
1565	select HAVE_KVM
1566	select MIPS_O32_FP64_SUPPORT
1567	help
1568	  Choose this option to build a kernel for release 6 or later of the
1569	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1570	  family, are based on a MIPS32r6 processor. If you own an older
1571	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1572
1573config CPU_MIPS64_R1
1574	bool "MIPS64 Release 1"
1575	depends on SYS_HAS_CPU_MIPS64_R1
1576	select CPU_HAS_PREFETCH
1577	select CPU_SUPPORTS_32BIT_KERNEL
1578	select CPU_SUPPORTS_64BIT_KERNEL
1579	select CPU_SUPPORTS_HIGHMEM
1580	select CPU_SUPPORTS_HUGEPAGES
1581	help
1582	  Choose this option to build a kernel for release 1 or later of the
1583	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1584	  MIPS processor are based on a MIPS64 processor.  If you know the
1585	  specific type of processor in your system, choose those that one
1586	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1587	  Release 2 of the MIPS64 architecture is available since several
1588	  years so chances are you even have a MIPS64 Release 2 processor
1589	  in which case you should choose CPU_MIPS64_R2 instead for better
1590	  performance.
1591
1592config CPU_MIPS64_R2
1593	bool "MIPS64 Release 2"
1594	depends on SYS_HAS_CPU_MIPS64_R2
1595	select CPU_HAS_PREFETCH
1596	select CPU_SUPPORTS_32BIT_KERNEL
1597	select CPU_SUPPORTS_64BIT_KERNEL
1598	select CPU_SUPPORTS_HIGHMEM
1599	select CPU_SUPPORTS_HUGEPAGES
1600	select CPU_SUPPORTS_MSA
1601	select HAVE_KVM
1602	help
1603	  Choose this option to build a kernel for release 2 or later of the
1604	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1605	  MIPS processor are based on a MIPS64 processor.  If you know the
1606	  specific type of processor in your system, choose those that one
1607	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1608
1609config CPU_MIPS64_R5
1610	bool "MIPS64 Release 5"
1611	depends on SYS_HAS_CPU_MIPS64_R5
1612	select CPU_HAS_PREFETCH
1613	select CPU_SUPPORTS_32BIT_KERNEL
1614	select CPU_SUPPORTS_64BIT_KERNEL
1615	select CPU_SUPPORTS_HIGHMEM
1616	select CPU_SUPPORTS_HUGEPAGES
1617	select CPU_SUPPORTS_MSA
1618	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1619	select HAVE_KVM
1620	help
1621	  Choose this option to build a kernel for release 5 or later of the
1622	  MIPS64 architecture.  This is a intermediate MIPS architecture
1623	  release partly implementing release 6 features. Though there is no
1624	  any hardware known to be based on this release.
1625
1626config CPU_MIPS64_R6
1627	bool "MIPS64 Release 6"
1628	depends on SYS_HAS_CPU_MIPS64_R6
1629	select CPU_HAS_PREFETCH
1630	select CPU_NO_LOAD_STORE_LR
1631	select CPU_SUPPORTS_32BIT_KERNEL
1632	select CPU_SUPPORTS_64BIT_KERNEL
1633	select CPU_SUPPORTS_HIGHMEM
1634	select CPU_SUPPORTS_HUGEPAGES
1635	select CPU_SUPPORTS_MSA
1636	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1637	select HAVE_KVM
1638	help
1639	  Choose this option to build a kernel for release 6 or later of the
1640	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1641	  family, are based on a MIPS64r6 processor. If you own an older
1642	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1643
1644config CPU_P5600
1645	bool "MIPS Warrior P5600"
1646	depends on SYS_HAS_CPU_P5600
1647	select CPU_HAS_PREFETCH
1648	select CPU_SUPPORTS_32BIT_KERNEL
1649	select CPU_SUPPORTS_HIGHMEM
1650	select CPU_SUPPORTS_MSA
1651	select CPU_SUPPORTS_CPUFREQ
1652	select CPU_MIPSR2_IRQ_VI
1653	select CPU_MIPSR2_IRQ_EI
1654	select HAVE_KVM
1655	select MIPS_O32_FP64_SUPPORT
1656	help
1657	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1658	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1659	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1660	  level features like up to six P5600 calculation cores, CM2 with L2
1661	  cache, IOCU/IOMMU (though might be unused depending on the system-
1662	  specific IP core configuration), GIC, CPC, virtualisation module,
1663	  eJTAG and PDtrace.
1664
1665config CPU_R3000
1666	bool "R3000"
1667	depends on SYS_HAS_CPU_R3000
1668	select CPU_HAS_WB
1669	select CPU_R3K_TLB
1670	select CPU_SUPPORTS_32BIT_KERNEL
1671	select CPU_SUPPORTS_HIGHMEM
1672	help
1673	  Please make sure to pick the right CPU type. Linux/MIPS is not
1674	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1675	  *not* work on R4000 machines and vice versa.  However, since most
1676	  of the supported machines have an R4000 (or similar) CPU, R4x00
1677	  might be a safe bet.  If the resulting kernel does not work,
1678	  try to recompile with R3000.
1679
1680config CPU_TX39XX
1681	bool "R39XX"
1682	depends on SYS_HAS_CPU_TX39XX
1683	select CPU_SUPPORTS_32BIT_KERNEL
1684	select CPU_R3K_TLB
1685
1686config CPU_VR41XX
1687	bool "R41xx"
1688	depends on SYS_HAS_CPU_VR41XX
1689	select CPU_SUPPORTS_32BIT_KERNEL
1690	select CPU_SUPPORTS_64BIT_KERNEL
1691	help
1692	  The options selects support for the NEC VR4100 series of processors.
1693	  Only choose this option if you have one of these processors as a
1694	  kernel built with this option will not run on any other type of
1695	  processor or vice versa.
1696
1697config CPU_R4300
1698	bool "R4300"
1699	depends on SYS_HAS_CPU_R4300
1700	select CPU_SUPPORTS_32BIT_KERNEL
1701	select CPU_SUPPORTS_64BIT_KERNEL
1702	select CPU_HAS_LOAD_STORE_LR
1703	help
1704	  MIPS Technologies R4300-series processors.
1705
1706config CPU_R4X00
1707	bool "R4x00"
1708	depends on SYS_HAS_CPU_R4X00
1709	select CPU_SUPPORTS_32BIT_KERNEL
1710	select CPU_SUPPORTS_64BIT_KERNEL
1711	select CPU_SUPPORTS_HUGEPAGES
1712	help
1713	  MIPS Technologies R4000-series processors other than 4300, including
1714	  the R4000, R4400, R4600, and 4700.
1715
1716config CPU_TX49XX
1717	bool "R49XX"
1718	depends on SYS_HAS_CPU_TX49XX
1719	select CPU_HAS_PREFETCH
1720	select CPU_SUPPORTS_32BIT_KERNEL
1721	select CPU_SUPPORTS_64BIT_KERNEL
1722	select CPU_SUPPORTS_HUGEPAGES
1723
1724config CPU_R5000
1725	bool "R5000"
1726	depends on SYS_HAS_CPU_R5000
1727	select CPU_SUPPORTS_32BIT_KERNEL
1728	select CPU_SUPPORTS_64BIT_KERNEL
1729	select CPU_SUPPORTS_HUGEPAGES
1730	help
1731	  MIPS Technologies R5000-series processors other than the Nevada.
1732
1733config CPU_R5500
1734	bool "R5500"
1735	depends on SYS_HAS_CPU_R5500
1736	select CPU_SUPPORTS_32BIT_KERNEL
1737	select CPU_SUPPORTS_64BIT_KERNEL
1738	select CPU_SUPPORTS_HUGEPAGES
1739	help
1740	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1741	  instruction set.
1742
1743config CPU_NEVADA
1744	bool "RM52xx"
1745	depends on SYS_HAS_CPU_NEVADA
1746	select CPU_SUPPORTS_32BIT_KERNEL
1747	select CPU_SUPPORTS_64BIT_KERNEL
1748	select CPU_SUPPORTS_HUGEPAGES
1749	help
1750	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1751
1752config CPU_R10000
1753	bool "R10000"
1754	depends on SYS_HAS_CPU_R10000
1755	select CPU_HAS_PREFETCH
1756	select CPU_SUPPORTS_32BIT_KERNEL
1757	select CPU_SUPPORTS_64BIT_KERNEL
1758	select CPU_SUPPORTS_HIGHMEM
1759	select CPU_SUPPORTS_HUGEPAGES
1760	help
1761	  MIPS Technologies R10000-series processors.
1762
1763config CPU_RM7000
1764	bool "RM7000"
1765	depends on SYS_HAS_CPU_RM7000
1766	select CPU_HAS_PREFETCH
1767	select CPU_SUPPORTS_32BIT_KERNEL
1768	select CPU_SUPPORTS_64BIT_KERNEL
1769	select CPU_SUPPORTS_HIGHMEM
1770	select CPU_SUPPORTS_HUGEPAGES
1771
1772config CPU_SB1
1773	bool "SB1"
1774	depends on SYS_HAS_CPU_SB1
1775	select CPU_SUPPORTS_32BIT_KERNEL
1776	select CPU_SUPPORTS_64BIT_KERNEL
1777	select CPU_SUPPORTS_HIGHMEM
1778	select CPU_SUPPORTS_HUGEPAGES
1779	select WEAK_ORDERING
1780
1781config CPU_CAVIUM_OCTEON
1782	bool "Cavium Octeon processor"
1783	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1784	select CPU_HAS_PREFETCH
1785	select CPU_SUPPORTS_64BIT_KERNEL
1786	select WEAK_ORDERING
1787	select CPU_SUPPORTS_HIGHMEM
1788	select CPU_SUPPORTS_HUGEPAGES
1789	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1790	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1791	select MIPS_L1_CACHE_SHIFT_7
1792	select HAVE_KVM
1793	help
1794	  The Cavium Octeon processor is a highly integrated chip containing
1795	  many ethernet hardware widgets for networking tasks. The processor
1796	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1797	  Full details can be found at http://www.caviumnetworks.com.
1798
1799config CPU_BMIPS
1800	bool "Broadcom BMIPS"
1801	depends on SYS_HAS_CPU_BMIPS
1802	select CPU_MIPS32
1803	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1804	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1805	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1806	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1807	select CPU_SUPPORTS_32BIT_KERNEL
1808	select DMA_NONCOHERENT
1809	select IRQ_MIPS_CPU
1810	select SWAP_IO_SPACE
1811	select WEAK_ORDERING
1812	select CPU_SUPPORTS_HIGHMEM
1813	select CPU_HAS_PREFETCH
1814	select CPU_SUPPORTS_CPUFREQ
1815	select MIPS_EXTERNAL_TIMER
1816	help
1817	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1818
1819config CPU_XLR
1820	bool "Netlogic XLR SoC"
1821	depends on SYS_HAS_CPU_XLR
1822	select CPU_SUPPORTS_32BIT_KERNEL
1823	select CPU_SUPPORTS_64BIT_KERNEL
1824	select CPU_SUPPORTS_HIGHMEM
1825	select CPU_SUPPORTS_HUGEPAGES
1826	select WEAK_ORDERING
1827	select WEAK_REORDERING_BEYOND_LLSC
1828	help
1829	  Netlogic Microsystems XLR/XLS processors.
1830
1831config CPU_XLP
1832	bool "Netlogic XLP SoC"
1833	depends on SYS_HAS_CPU_XLP
1834	select CPU_SUPPORTS_32BIT_KERNEL
1835	select CPU_SUPPORTS_64BIT_KERNEL
1836	select CPU_SUPPORTS_HIGHMEM
1837	select WEAK_ORDERING
1838	select WEAK_REORDERING_BEYOND_LLSC
1839	select CPU_HAS_PREFETCH
1840	select CPU_MIPSR2
1841	select CPU_SUPPORTS_HUGEPAGES
1842	select MIPS_ASID_BITS_VARIABLE
1843	help
1844	  Netlogic Microsystems XLP processors.
1845endchoice
1846
1847config CPU_MIPS32_3_5_FEATURES
1848	bool "MIPS32 Release 3.5 Features"
1849	depends on SYS_HAS_CPU_MIPS32_R3_5
1850	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1851		   CPU_P5600
1852	help
1853	  Choose this option to build a kernel for release 2 or later of the
1854	  MIPS32 architecture including features from the 3.5 release such as
1855	  support for Enhanced Virtual Addressing (EVA).
1856
1857config CPU_MIPS32_3_5_EVA
1858	bool "Enhanced Virtual Addressing (EVA)"
1859	depends on CPU_MIPS32_3_5_FEATURES
1860	select EVA
1861	default y
1862	help
1863	  Choose this option if you want to enable the Enhanced Virtual
1864	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1865	  One of its primary benefits is an increase in the maximum size
1866	  of lowmem (up to 3GB). If unsure, say 'N' here.
1867
1868config CPU_MIPS32_R5_FEATURES
1869	bool "MIPS32 Release 5 Features"
1870	depends on SYS_HAS_CPU_MIPS32_R5
1871	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1872	help
1873	  Choose this option to build a kernel for release 2 or later of the
1874	  MIPS32 architecture including features from release 5 such as
1875	  support for Extended Physical Addressing (XPA).
1876
1877config CPU_MIPS32_R5_XPA
1878	bool "Extended Physical Addressing (XPA)"
1879	depends on CPU_MIPS32_R5_FEATURES
1880	depends on !EVA
1881	depends on !PAGE_SIZE_4KB
1882	depends on SYS_SUPPORTS_HIGHMEM
1883	select XPA
1884	select HIGHMEM
1885	select PHYS_ADDR_T_64BIT
1886	default n
1887	help
1888	  Choose this option if you want to enable the Extended Physical
1889	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1890	  benefit is to increase physical addressing equal to or greater
1891	  than 40 bits. Note that this has the side effect of turning on
1892	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1893	  If unsure, say 'N' here.
1894
1895if CPU_LOONGSON2F
1896config CPU_NOP_WORKAROUNDS
1897	bool
1898
1899config CPU_JUMP_WORKAROUNDS
1900	bool
1901
1902config CPU_LOONGSON2F_WORKAROUNDS
1903	bool "Loongson 2F Workarounds"
1904	default y
1905	select CPU_NOP_WORKAROUNDS
1906	select CPU_JUMP_WORKAROUNDS
1907	help
1908	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1909	  require workarounds.  Without workarounds the system may hang
1910	  unexpectedly.  For more information please refer to the gas
1911	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1912
1913	  Loongson 2F03 and later have fixed these issues and no workarounds
1914	  are needed.  The workarounds have no significant side effect on them
1915	  but may decrease the performance of the system so this option should
1916	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1917	  systems.
1918
1919	  If unsure, please say Y.
1920endif # CPU_LOONGSON2F
1921
1922config SYS_SUPPORTS_ZBOOT
1923	bool
1924	select HAVE_KERNEL_GZIP
1925	select HAVE_KERNEL_BZIP2
1926	select HAVE_KERNEL_LZ4
1927	select HAVE_KERNEL_LZMA
1928	select HAVE_KERNEL_LZO
1929	select HAVE_KERNEL_XZ
1930	select HAVE_KERNEL_ZSTD
1931
1932config SYS_SUPPORTS_ZBOOT_UART16550
1933	bool
1934	select SYS_SUPPORTS_ZBOOT
1935
1936config SYS_SUPPORTS_ZBOOT_UART_PROM
1937	bool
1938	select SYS_SUPPORTS_ZBOOT
1939
1940config CPU_LOONGSON2EF
1941	bool
1942	select CPU_SUPPORTS_32BIT_KERNEL
1943	select CPU_SUPPORTS_64BIT_KERNEL
1944	select CPU_SUPPORTS_HIGHMEM
1945	select CPU_SUPPORTS_HUGEPAGES
1946	select ARCH_HAS_PHYS_TO_DMA
1947
1948config CPU_LOONGSON32
1949	bool
1950	select CPU_MIPS32
1951	select CPU_MIPSR2
1952	select CPU_HAS_PREFETCH
1953	select CPU_SUPPORTS_32BIT_KERNEL
1954	select CPU_SUPPORTS_HIGHMEM
1955	select CPU_SUPPORTS_CPUFREQ
1956
1957config CPU_BMIPS32_3300
1958	select SMP_UP if SMP
1959	bool
1960
1961config CPU_BMIPS4350
1962	bool
1963	select SYS_SUPPORTS_SMP
1964	select SYS_SUPPORTS_HOTPLUG_CPU
1965
1966config CPU_BMIPS4380
1967	bool
1968	select MIPS_L1_CACHE_SHIFT_6
1969	select SYS_SUPPORTS_SMP
1970	select SYS_SUPPORTS_HOTPLUG_CPU
1971	select CPU_HAS_RIXI
1972
1973config CPU_BMIPS5000
1974	bool
1975	select MIPS_CPU_SCACHE
1976	select MIPS_L1_CACHE_SHIFT_7
1977	select SYS_SUPPORTS_SMP
1978	select SYS_SUPPORTS_HOTPLUG_CPU
1979	select CPU_HAS_RIXI
1980
1981config SYS_HAS_CPU_LOONGSON64
1982	bool
1983	select CPU_SUPPORTS_CPUFREQ
1984	select CPU_HAS_RIXI
1985
1986config SYS_HAS_CPU_LOONGSON2E
1987	bool
1988
1989config SYS_HAS_CPU_LOONGSON2F
1990	bool
1991	select CPU_SUPPORTS_CPUFREQ
1992	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1993
1994config SYS_HAS_CPU_LOONGSON1B
1995	bool
1996
1997config SYS_HAS_CPU_LOONGSON1C
1998	bool
1999
2000config SYS_HAS_CPU_MIPS32_R1
2001	bool
2002
2003config SYS_HAS_CPU_MIPS32_R2
2004	bool
2005
2006config SYS_HAS_CPU_MIPS32_R3_5
2007	bool
2008
2009config SYS_HAS_CPU_MIPS32_R5
2010	bool
2011	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2012
2013config SYS_HAS_CPU_MIPS32_R6
2014	bool
2015	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2016
2017config SYS_HAS_CPU_MIPS64_R1
2018	bool
2019
2020config SYS_HAS_CPU_MIPS64_R2
2021	bool
2022
2023config SYS_HAS_CPU_MIPS64_R6
2024	bool
2025	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2026
2027config SYS_HAS_CPU_P5600
2028	bool
2029	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2030
2031config SYS_HAS_CPU_R3000
2032	bool
2033
2034config SYS_HAS_CPU_TX39XX
2035	bool
2036
2037config SYS_HAS_CPU_VR41XX
2038	bool
2039
2040config SYS_HAS_CPU_R4300
2041	bool
2042
2043config SYS_HAS_CPU_R4X00
2044	bool
2045
2046config SYS_HAS_CPU_TX49XX
2047	bool
2048
2049config SYS_HAS_CPU_R5000
2050	bool
2051
2052config SYS_HAS_CPU_R5500
2053	bool
2054
2055config SYS_HAS_CPU_NEVADA
2056	bool
2057
2058config SYS_HAS_CPU_R10000
2059	bool
2060	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2061
2062config SYS_HAS_CPU_RM7000
2063	bool
2064
2065config SYS_HAS_CPU_SB1
2066	bool
2067
2068config SYS_HAS_CPU_CAVIUM_OCTEON
2069	bool
2070
2071config SYS_HAS_CPU_BMIPS
2072	bool
2073
2074config SYS_HAS_CPU_BMIPS32_3300
2075	bool
2076	select SYS_HAS_CPU_BMIPS
2077
2078config SYS_HAS_CPU_BMIPS4350
2079	bool
2080	select SYS_HAS_CPU_BMIPS
2081
2082config SYS_HAS_CPU_BMIPS4380
2083	bool
2084	select SYS_HAS_CPU_BMIPS
2085
2086config SYS_HAS_CPU_BMIPS5000
2087	bool
2088	select SYS_HAS_CPU_BMIPS
2089	select ARCH_HAS_SYNC_DMA_FOR_CPU
2090
2091config SYS_HAS_CPU_XLR
2092	bool
2093
2094config SYS_HAS_CPU_XLP
2095	bool
2096
2097#
2098# CPU may reorder R->R, R->W, W->R, W->W
2099# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2100#
2101config WEAK_ORDERING
2102	bool
2103
2104#
2105# CPU may reorder reads and writes beyond LL/SC
2106# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2107#
2108config WEAK_REORDERING_BEYOND_LLSC
2109	bool
2110endmenu
2111
2112#
2113# These two indicate any level of the MIPS32 and MIPS64 architecture
2114#
2115config CPU_MIPS32
2116	bool
2117	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2118		     CPU_MIPS32_R6 || CPU_P5600
2119
2120config CPU_MIPS64
2121	bool
2122	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2123		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
2124
2125#
2126# These indicate the revision of the architecture
2127#
2128config CPU_MIPSR1
2129	bool
2130	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2131
2132config CPU_MIPSR2
2133	bool
2134	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2135	select CPU_HAS_RIXI
2136	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2137	select MIPS_SPRAM
2138
2139config CPU_MIPSR5
2140	bool
2141	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2142	select CPU_HAS_RIXI
2143	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2144	select MIPS_SPRAM
2145
2146config CPU_MIPSR6
2147	bool
2148	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2149	select CPU_HAS_RIXI
2150	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2151	select HAVE_ARCH_BITREVERSE
2152	select MIPS_ASID_BITS_VARIABLE
2153	select MIPS_CRC_SUPPORT
2154	select MIPS_SPRAM
2155
2156config TARGET_ISA_REV
2157	int
2158	default 1 if CPU_MIPSR1
2159	default 2 if CPU_MIPSR2
2160	default 5 if CPU_MIPSR5
2161	default 6 if CPU_MIPSR6
2162	default 0
2163	help
2164	  Reflects the ISA revision being targeted by the kernel build. This
2165	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2166
2167config EVA
2168	bool
2169
2170config XPA
2171	bool
2172
2173config SYS_SUPPORTS_32BIT_KERNEL
2174	bool
2175config SYS_SUPPORTS_64BIT_KERNEL
2176	bool
2177config CPU_SUPPORTS_32BIT_KERNEL
2178	bool
2179config CPU_SUPPORTS_64BIT_KERNEL
2180	bool
2181config CPU_SUPPORTS_CPUFREQ
2182	bool
2183config CPU_SUPPORTS_ADDRWINCFG
2184	bool
2185config CPU_SUPPORTS_HUGEPAGES
2186	bool
2187	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2188config MIPS_PGD_C0_CONTEXT
2189	bool
2190	depends on 64BIT
2191	default y if (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2192
2193#
2194# Set to y for ptrace access to watch registers.
2195#
2196config HARDWARE_WATCHPOINTS
2197	bool
2198	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2199
2200menu "Kernel type"
2201
2202choice
2203	prompt "Kernel code model"
2204	help
2205	  You should only select this option if you have a workload that
2206	  actually benefits from 64-bit processing or if your machine has
2207	  large memory.  You will only be presented a single option in this
2208	  menu if your system does not support both 32-bit and 64-bit kernels.
2209
2210config 32BIT
2211	bool "32-bit kernel"
2212	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2213	select TRAD_SIGNALS
2214	help
2215	  Select this option if you want to build a 32-bit kernel.
2216
2217config 64BIT
2218	bool "64-bit kernel"
2219	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2220	help
2221	  Select this option if you want to build a 64-bit kernel.
2222
2223endchoice
2224
2225config MIPS_VA_BITS_48
2226	bool "48 bits virtual memory"
2227	depends on 64BIT
2228	help
2229	  Support a maximum at least 48 bits of application virtual
2230	  memory.  Default is 40 bits or less, depending on the CPU.
2231	  For page sizes 16k and above, this option results in a small
2232	  memory overhead for page tables.  For 4k page size, a fourth
2233	  level of page tables is added which imposes both a memory
2234	  overhead as well as slower TLB fault handling.
2235
2236	  If unsure, say N.
2237
2238choice
2239	prompt "Kernel page size"
2240	default PAGE_SIZE_4KB
2241
2242config PAGE_SIZE_4KB
2243	bool "4kB"
2244	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2245	help
2246	  This option select the standard 4kB Linux page size.  On some
2247	  R3000-family processors this is the only available page size.  Using
2248	  4kB page size will minimize memory consumption and is therefore
2249	  recommended for low memory systems.
2250
2251config PAGE_SIZE_8KB
2252	bool "8kB"
2253	depends on CPU_CAVIUM_OCTEON
2254	depends on !MIPS_VA_BITS_48
2255	help
2256	  Using 8kB page size will result in higher performance kernel at
2257	  the price of higher memory consumption.  This option is available
2258	  only on cnMIPS processors.  Note that you will need a suitable Linux
2259	  distribution to support this.
2260
2261config PAGE_SIZE_16KB
2262	bool "16kB"
2263	depends on !CPU_R3000 && !CPU_TX39XX
2264	help
2265	  Using 16kB page size will result in higher performance kernel at
2266	  the price of higher memory consumption.  This option is available on
2267	  all non-R3000 family processors.  Note that you will need a suitable
2268	  Linux distribution to support this.
2269
2270config PAGE_SIZE_32KB
2271	bool "32kB"
2272	depends on CPU_CAVIUM_OCTEON
2273	depends on !MIPS_VA_BITS_48
2274	help
2275	  Using 32kB page size will result in higher performance kernel at
2276	  the price of higher memory consumption.  This option is available
2277	  only on cnMIPS cores.  Note that you will need a suitable Linux
2278	  distribution to support this.
2279
2280config PAGE_SIZE_64KB
2281	bool "64kB"
2282	depends on !CPU_R3000 && !CPU_TX39XX
2283	help
2284	  Using 64kB page size will result in higher performance kernel at
2285	  the price of higher memory consumption.  This option is available on
2286	  all non-R3000 family processor.  Not that at the time of this
2287	  writing this option is still high experimental.
2288
2289endchoice
2290
2291config FORCE_MAX_ZONEORDER
2292	int "Maximum zone order"
2293	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2294	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2295	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2296	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2297	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2298	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2299	range 0 64
2300	default "11"
2301	help
2302	  The kernel memory allocator divides physically contiguous memory
2303	  blocks into "zones", where each zone is a power of two number of
2304	  pages.  This option selects the largest power of two that the kernel
2305	  keeps in the memory allocator.  If you need to allocate very large
2306	  blocks of physically contiguous memory, then you may need to
2307	  increase this value.
2308
2309	  This config option is actually maximum order plus one. For example,
2310	  a value of 11 means that the largest free memory block is 2^10 pages.
2311
2312	  The page size is not necessarily 4KB.  Keep this in mind
2313	  when choosing a value for this option.
2314
2315config BOARD_SCACHE
2316	bool
2317
2318config IP22_CPU_SCACHE
2319	bool
2320	select BOARD_SCACHE
2321
2322#
2323# Support for a MIPS32 / MIPS64 style S-caches
2324#
2325config MIPS_CPU_SCACHE
2326	bool
2327	select BOARD_SCACHE
2328
2329config R5000_CPU_SCACHE
2330	bool
2331	select BOARD_SCACHE
2332
2333config RM7000_CPU_SCACHE
2334	bool
2335	select BOARD_SCACHE
2336
2337config SIBYTE_DMA_PAGEOPS
2338	bool "Use DMA to clear/copy pages"
2339	depends on CPU_SB1
2340	help
2341	  Instead of using the CPU to zero and copy pages, use a Data Mover
2342	  channel.  These DMA channels are otherwise unused by the standard
2343	  SiByte Linux port.  Seems to give a small performance benefit.
2344
2345config CPU_HAS_PREFETCH
2346	bool
2347
2348config CPU_GENERIC_DUMP_TLB
2349	bool
2350	default y if !(CPU_R3000 || CPU_TX39XX)
2351
2352config MIPS_FP_SUPPORT
2353	bool "Floating Point support" if EXPERT
2354	default y
2355	help
2356	  Select y to include support for floating point in the kernel
2357	  including initialization of FPU hardware, FP context save & restore
2358	  and emulation of an FPU where necessary. Without this support any
2359	  userland program attempting to use floating point instructions will
2360	  receive a SIGILL.
2361
2362	  If you know that your userland will not attempt to use floating point
2363	  instructions then you can say n here to shrink the kernel a little.
2364
2365	  If unsure, say y.
2366
2367config CPU_R2300_FPU
2368	bool
2369	depends on MIPS_FP_SUPPORT
2370	default y if CPU_R3000 || CPU_TX39XX
2371
2372config CPU_R3K_TLB
2373	bool
2374
2375config CPU_R4K_FPU
2376	bool
2377	depends on MIPS_FP_SUPPORT
2378	default y if !CPU_R2300_FPU
2379
2380config CPU_R4K_CACHE_TLB
2381	bool
2382	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2383
2384config MIPS_MT_SMP
2385	bool "MIPS MT SMP support (1 TC on each available VPE)"
2386	default y
2387	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2388	select CPU_MIPSR2_IRQ_VI
2389	select CPU_MIPSR2_IRQ_EI
2390	select SYNC_R4K
2391	select MIPS_MT
2392	select SMP
2393	select SMP_UP
2394	select SYS_SUPPORTS_SMP
2395	select SYS_SUPPORTS_SCHED_SMT
2396	select MIPS_PERF_SHARED_TC_COUNTERS
2397	help
2398	  This is a kernel model which is known as SMVP. This is supported
2399	  on cores with the MT ASE and uses the available VPEs to implement
2400	  virtual processors which supports SMP. This is equivalent to the
2401	  Intel Hyperthreading feature. For further information go to
2402	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2403
2404config MIPS_MT
2405	bool
2406
2407config SCHED_SMT
2408	bool "SMT (multithreading) scheduler support"
2409	depends on SYS_SUPPORTS_SCHED_SMT
2410	default n
2411	help
2412	  SMT scheduler support improves the CPU scheduler's decision making
2413	  when dealing with MIPS MT enabled cores at a cost of slightly
2414	  increased overhead in some places. If unsure say N here.
2415
2416config SYS_SUPPORTS_SCHED_SMT
2417	bool
2418
2419config SYS_SUPPORTS_MULTITHREADING
2420	bool
2421
2422config MIPS_MT_FPAFF
2423	bool "Dynamic FPU affinity for FP-intensive threads"
2424	default y
2425	depends on MIPS_MT_SMP
2426
2427config MIPSR2_TO_R6_EMULATOR
2428	bool "MIPS R2-to-R6 emulator"
2429	depends on CPU_MIPSR6
2430	depends on MIPS_FP_SUPPORT
2431	default y
2432	help
2433	  Choose this option if you want to run non-R6 MIPS userland code.
2434	  Even if you say 'Y' here, the emulator will still be disabled by
2435	  default. You can enable it using the 'mipsr2emu' kernel option.
2436	  The only reason this is a build-time option is to save ~14K from the
2437	  final kernel image.
2438
2439config SYS_SUPPORTS_VPE_LOADER
2440	bool
2441	depends on SYS_SUPPORTS_MULTITHREADING
2442	help
2443	  Indicates that the platform supports the VPE loader, and provides
2444	  physical_memsize.
2445
2446config MIPS_VPE_LOADER
2447	bool "VPE loader support."
2448	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2449	select CPU_MIPSR2_IRQ_VI
2450	select CPU_MIPSR2_IRQ_EI
2451	select MIPS_MT
2452	help
2453	  Includes a loader for loading an elf relocatable object
2454	  onto another VPE and running it.
2455
2456config MIPS_VPE_LOADER_CMP
2457	bool
2458	default "y"
2459	depends on MIPS_VPE_LOADER && MIPS_CMP
2460
2461config MIPS_VPE_LOADER_MT
2462	bool
2463	default "y"
2464	depends on MIPS_VPE_LOADER && !MIPS_CMP
2465
2466config MIPS_VPE_LOADER_TOM
2467	bool "Load VPE program into memory hidden from linux"
2468	depends on MIPS_VPE_LOADER
2469	default y
2470	help
2471	  The loader can use memory that is present but has been hidden from
2472	  Linux using the kernel command line option "mem=xxMB". It's up to
2473	  you to ensure the amount you put in the option and the space your
2474	  program requires is less or equal to the amount physically present.
2475
2476config MIPS_VPE_APSP_API
2477	bool "Enable support for AP/SP API (RTLX)"
2478	depends on MIPS_VPE_LOADER
2479
2480config MIPS_VPE_APSP_API_CMP
2481	bool
2482	default "y"
2483	depends on MIPS_VPE_APSP_API && MIPS_CMP
2484
2485config MIPS_VPE_APSP_API_MT
2486	bool
2487	default "y"
2488	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2489
2490config MIPS_CMP
2491	bool "MIPS CMP framework support (DEPRECATED)"
2492	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2493	select SMP
2494	select SYNC_R4K
2495	select SYS_SUPPORTS_SMP
2496	select WEAK_ORDERING
2497	default n
2498	help
2499	  Select this if you are using a bootloader which implements the "CMP
2500	  framework" protocol (ie. YAMON) and want your kernel to make use of
2501	  its ability to start secondary CPUs.
2502
2503	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2504	  instead of this.
2505
2506config MIPS_CPS
2507	bool "MIPS Coherent Processing System support"
2508	depends on SYS_SUPPORTS_MIPS_CPS
2509	select MIPS_CM
2510	select MIPS_CPS_PM if HOTPLUG_CPU
2511	select SMP
2512	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2513	select SYS_SUPPORTS_HOTPLUG_CPU
2514	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2515	select SYS_SUPPORTS_SMP
2516	select WEAK_ORDERING
2517	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2518	help
2519	  Select this if you wish to run an SMP kernel across multiple cores
2520	  within a MIPS Coherent Processing System. When this option is
2521	  enabled the kernel will probe for other cores and boot them with
2522	  no external assistance. It is safe to enable this when hardware
2523	  support is unavailable.
2524
2525config MIPS_CPS_PM
2526	depends on MIPS_CPS
2527	bool
2528
2529config MIPS_CM
2530	bool
2531	select MIPS_CPC
2532
2533config MIPS_CPC
2534	bool
2535
2536config SB1_PASS_2_WORKAROUNDS
2537	bool
2538	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2539	default y
2540
2541config SB1_PASS_2_1_WORKAROUNDS
2542	bool
2543	depends on CPU_SB1 && CPU_SB1_PASS_2
2544	default y
2545
2546choice
2547	prompt "SmartMIPS or microMIPS ASE support"
2548
2549config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2550	bool "None"
2551	help
2552	  Select this if you want neither microMIPS nor SmartMIPS support
2553
2554config CPU_HAS_SMARTMIPS
2555	depends on SYS_SUPPORTS_SMARTMIPS
2556	bool "SmartMIPS"
2557	help
2558	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2559	  increased security at both hardware and software level for
2560	  smartcards.  Enabling this option will allow proper use of the
2561	  SmartMIPS instructions by Linux applications.  However a kernel with
2562	  this option will not work on a MIPS core without SmartMIPS core.  If
2563	  you don't know you probably don't have SmartMIPS and should say N
2564	  here.
2565
2566config CPU_MICROMIPS
2567	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2568	bool "microMIPS"
2569	help
2570	  When this option is enabled the kernel will be built using the
2571	  microMIPS ISA
2572
2573endchoice
2574
2575config CPU_HAS_MSA
2576	bool "Support for the MIPS SIMD Architecture"
2577	depends on CPU_SUPPORTS_MSA
2578	depends on MIPS_FP_SUPPORT
2579	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2580	help
2581	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2582	  and a set of SIMD instructions to operate on them. When this option
2583	  is enabled the kernel will support allocating & switching MSA
2584	  vector register contexts. If you know that your kernel will only be
2585	  running on CPUs which do not support MSA or that your userland will
2586	  not be making use of it then you may wish to say N here to reduce
2587	  the size & complexity of your kernel.
2588
2589	  If unsure, say Y.
2590
2591config CPU_HAS_WB
2592	bool
2593
2594config XKS01
2595	bool
2596
2597config CPU_HAS_DIEI
2598	depends on !CPU_DIEI_BROKEN
2599	bool
2600
2601config CPU_DIEI_BROKEN
2602	bool
2603
2604config CPU_HAS_RIXI
2605	bool
2606
2607config CPU_NO_LOAD_STORE_LR
2608	bool
2609	help
2610	  CPU lacks support for unaligned load and store instructions:
2611	  LWL, LWR, SWL, SWR (Load/store word left/right).
2612	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2613	  systems).
2614
2615#
2616# Vectored interrupt mode is an R2 feature
2617#
2618config CPU_MIPSR2_IRQ_VI
2619	bool
2620
2621#
2622# Extended interrupt mode is an R2 feature
2623#
2624config CPU_MIPSR2_IRQ_EI
2625	bool
2626
2627config CPU_HAS_SYNC
2628	bool
2629	depends on !CPU_R3000
2630	default y
2631
2632#
2633# CPU non-features
2634#
2635config CPU_DADDI_WORKAROUNDS
2636	bool
2637
2638config CPU_R4000_WORKAROUNDS
2639	bool
2640	select CPU_R4400_WORKAROUNDS
2641
2642config CPU_R4400_WORKAROUNDS
2643	bool
2644
2645config CPU_R4X00_BUGS64
2646	bool
2647	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2648
2649config MIPS_ASID_SHIFT
2650	int
2651	default 6 if CPU_R3000 || CPU_TX39XX
2652	default 0
2653
2654config MIPS_ASID_BITS
2655	int
2656	default 0 if MIPS_ASID_BITS_VARIABLE
2657	default 6 if CPU_R3000 || CPU_TX39XX
2658	default 8
2659
2660config MIPS_ASID_BITS_VARIABLE
2661	bool
2662
2663config MIPS_CRC_SUPPORT
2664	bool
2665
2666# R4600 erratum.  Due to the lack of errata information the exact
2667# technical details aren't known.  I've experimentally found that disabling
2668# interrupts during indexed I-cache flushes seems to be sufficient to deal
2669# with the issue.
2670config WAR_R4600_V1_INDEX_ICACHEOP
2671	bool
2672
2673# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
2674#
2675#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2676#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2677#      executed if there is no other dcache activity. If the dcache is
2678#      accessed for another instruction immediately preceding when these
2679#      cache instructions are executing, it is possible that the dcache
2680#      tag match outputs used by these cache instructions will be
2681#      incorrect. These cache instructions should be preceded by at least
2682#      four instructions that are not any kind of load or store
2683#      instruction.
2684#
2685#      This is not allowed:    lw
2686#                              nop
2687#                              nop
2688#                              nop
2689#                              cache       Hit_Writeback_Invalidate_D
2690#
2691#      This is allowed:        lw
2692#                              nop
2693#                              nop
2694#                              nop
2695#                              nop
2696#                              cache       Hit_Writeback_Invalidate_D
2697config WAR_R4600_V1_HIT_CACHEOP
2698	bool
2699
2700# Writeback and invalidate the primary cache dcache before DMA.
2701#
2702# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2703# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2704# operate correctly if the internal data cache refill buffer is empty.  These
2705# CACHE instructions should be separated from any potential data cache miss
2706# by a load instruction to an uncached address to empty the response buffer."
2707# (Revision 2.0 device errata from IDT available on https://www.idt.com/
2708# in .pdf format.)
2709config WAR_R4600_V2_HIT_CACHEOP
2710	bool
2711
2712# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2713# the line which this instruction itself exists, the following
2714# operation is not guaranteed."
2715#
2716# Workaround: do two phase flushing for Index_Invalidate_I
2717config WAR_TX49XX_ICACHE_INDEX_INV
2718	bool
2719
2720# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2721# opposes it being called that) where invalid instructions in the same
2722# I-cache line worth of instructions being fetched may case spurious
2723# exceptions.
2724config WAR_ICACHE_REFILLS
2725	bool
2726
2727# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2728# may cause ll / sc and lld / scd sequences to execute non-atomically.
2729config WAR_R10000_LLSC
2730	bool
2731
2732# 34K core erratum: "Problems Executing the TLBR Instruction"
2733config WAR_MIPS34K_MISSED_ITLB
2734	bool
2735
2736#
2737# - Highmem only makes sense for the 32-bit kernel.
2738# - The current highmem code will only work properly on physically indexed
2739#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2740#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2741#   moment we protect the user and offer the highmem option only on machines
2742#   where it's known to be safe.  This will not offer highmem on a few systems
2743#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2744#   indexed CPUs but we're playing safe.
2745# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2746#   know they might have memory configurations that could make use of highmem
2747#   support.
2748#
2749config HIGHMEM
2750	bool "High Memory Support"
2751	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2752	select KMAP_LOCAL
2753
2754config CPU_SUPPORTS_HIGHMEM
2755	bool
2756
2757config SYS_SUPPORTS_HIGHMEM
2758	bool
2759
2760config SYS_SUPPORTS_SMARTMIPS
2761	bool
2762
2763config SYS_SUPPORTS_MICROMIPS
2764	bool
2765
2766config SYS_SUPPORTS_MIPS16
2767	bool
2768	help
2769	  This option must be set if a kernel might be executed on a MIPS16-
2770	  enabled CPU even if MIPS16 is not actually being used.  In other
2771	  words, it makes the kernel MIPS16-tolerant.
2772
2773config CPU_SUPPORTS_MSA
2774	bool
2775
2776config ARCH_FLATMEM_ENABLE
2777	def_bool y
2778	depends on !NUMA && !CPU_LOONGSON2EF
2779
2780config ARCH_SPARSEMEM_ENABLE
2781	bool
2782	select SPARSEMEM_STATIC if !SGI_IP27
2783
2784config NUMA
2785	bool "NUMA Support"
2786	depends on SYS_SUPPORTS_NUMA
2787	select SMP
2788	help
2789	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2790	  Access).  This option improves performance on systems with more
2791	  than two nodes; on two node systems it is generally better to
2792	  leave it disabled; on single node systems leave this option
2793	  disabled.
2794
2795config SYS_SUPPORTS_NUMA
2796	bool
2797
2798config HAVE_SETUP_PER_CPU_AREA
2799	def_bool y
2800	depends on NUMA
2801
2802config NEED_PER_CPU_EMBED_FIRST_CHUNK
2803	def_bool y
2804	depends on NUMA
2805
2806config RELOCATABLE
2807	bool "Relocatable kernel"
2808	depends on SYS_SUPPORTS_RELOCATABLE
2809	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2810		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2811		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2812		   CPU_P5600 || CAVIUM_OCTEON_SOC || \
2813		   CPU_LOONGSON64
2814	help
2815	  This builds a kernel image that retains relocation information
2816	  so it can be loaded someplace besides the default 1MB.
2817	  The relocations make the kernel binary about 15% larger,
2818	  but are discarded at runtime
2819
2820config RELOCATION_TABLE_SIZE
2821	hex "Relocation table size"
2822	depends on RELOCATABLE
2823	range 0x0 0x01000000
2824	default "0x00200000" if CPU_LOONGSON64
2825	default "0x00100000"
2826	help
2827	  A table of relocation data will be appended to the kernel binary
2828	  and parsed at boot to fix up the relocated kernel.
2829
2830	  This option allows the amount of space reserved for the table to be
2831	  adjusted, although the default of 1Mb should be ok in most cases.
2832
2833	  The build will fail and a valid size suggested if this is too small.
2834
2835	  If unsure, leave at the default value.
2836
2837config RANDOMIZE_BASE
2838	bool "Randomize the address of the kernel image"
2839	depends on RELOCATABLE
2840	help
2841	  Randomizes the physical and virtual address at which the
2842	  kernel image is loaded, as a security feature that
2843	  deters exploit attempts relying on knowledge of the location
2844	  of kernel internals.
2845
2846	  Entropy is generated using any coprocessor 0 registers available.
2847
2848	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2849
2850	  If unsure, say N.
2851
2852config RANDOMIZE_BASE_MAX_OFFSET
2853	hex "Maximum kASLR offset" if EXPERT
2854	depends on RANDOMIZE_BASE
2855	range 0x0 0x40000000 if EVA || 64BIT
2856	range 0x0 0x08000000
2857	default "0x01000000"
2858	help
2859	  When kASLR is active, this provides the maximum offset that will
2860	  be applied to the kernel image. It should be set according to the
2861	  amount of physical RAM available in the target system minus
2862	  PHYSICAL_START and must be a power of 2.
2863
2864	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2865	  EVA or 64-bit. The default is 16Mb.
2866
2867config NODES_SHIFT
2868	int
2869	default "6"
2870	depends on NEED_MULTIPLE_NODES
2871
2872config HW_PERF_EVENTS
2873	bool "Enable hardware performance counter support for perf events"
2874	depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2875	default y
2876	help
2877	  Enable hardware performance counter support for perf events. If
2878	  disabled, perf events will use software events only.
2879
2880config DMI
2881	bool "Enable DMI scanning"
2882	depends on MACH_LOONGSON64
2883	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2884	default y
2885	help
2886	  Enabled scanning of DMI to identify machine quirks. Say Y
2887	  here unless you have verified that your setup is not
2888	  affected by entries in the DMI blacklist. Required by PNP
2889	  BIOS code.
2890
2891config SMP
2892	bool "Multi-Processing support"
2893	depends on SYS_SUPPORTS_SMP
2894	help
2895	  This enables support for systems with more than one CPU. If you have
2896	  a system with only one CPU, say N. If you have a system with more
2897	  than one CPU, say Y.
2898
2899	  If you say N here, the kernel will run on uni- and multiprocessor
2900	  machines, but will use only one CPU of a multiprocessor machine. If
2901	  you say Y here, the kernel will run on many, but not all,
2902	  uniprocessor machines. On a uniprocessor machine, the kernel
2903	  will run faster if you say N here.
2904
2905	  People using multiprocessor machines who say Y here should also say
2906	  Y to "Enhanced Real Time Clock Support", below.
2907
2908	  See also the SMP-HOWTO available at
2909	  <https://www.tldp.org/docs.html#howto>.
2910
2911	  If you don't know what to do here, say N.
2912
2913config HOTPLUG_CPU
2914	bool "Support for hot-pluggable CPUs"
2915	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2916	help
2917	  Say Y here to allow turning CPUs off and on. CPUs can be
2918	  controlled through /sys/devices/system/cpu.
2919	  (Note: power management support will enable this option
2920	    automatically on SMP systems. )
2921	  Say N if you want to disable CPU hotplug.
2922
2923config SMP_UP
2924	bool
2925
2926config SYS_SUPPORTS_MIPS_CMP
2927	bool
2928
2929config SYS_SUPPORTS_MIPS_CPS
2930	bool
2931
2932config SYS_SUPPORTS_SMP
2933	bool
2934
2935config NR_CPUS_DEFAULT_4
2936	bool
2937
2938config NR_CPUS_DEFAULT_8
2939	bool
2940
2941config NR_CPUS_DEFAULT_16
2942	bool
2943
2944config NR_CPUS_DEFAULT_32
2945	bool
2946
2947config NR_CPUS_DEFAULT_64
2948	bool
2949
2950config NR_CPUS
2951	int "Maximum number of CPUs (2-256)"
2952	range 2 256
2953	depends on SMP
2954	default "4" if NR_CPUS_DEFAULT_4
2955	default "8" if NR_CPUS_DEFAULT_8
2956	default "16" if NR_CPUS_DEFAULT_16
2957	default "32" if NR_CPUS_DEFAULT_32
2958	default "64" if NR_CPUS_DEFAULT_64
2959	help
2960	  This allows you to specify the maximum number of CPUs which this
2961	  kernel will support.  The maximum supported value is 32 for 32-bit
2962	  kernel and 64 for 64-bit kernels; the minimum value which makes
2963	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2964	  and 2 for all others.
2965
2966	  This is purely to save memory - each supported CPU adds
2967	  approximately eight kilobytes to the kernel image.  For best
2968	  performance should round up your number of processors to the next
2969	  power of two.
2970
2971config MIPS_PERF_SHARED_TC_COUNTERS
2972	bool
2973
2974config MIPS_NR_CPU_NR_MAP_1024
2975	bool
2976
2977config MIPS_NR_CPU_NR_MAP
2978	int
2979	depends on SMP
2980	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2981	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2982
2983#
2984# Timer Interrupt Frequency Configuration
2985#
2986
2987choice
2988	prompt "Timer frequency"
2989	default HZ_250
2990	help
2991	  Allows the configuration of the timer frequency.
2992
2993	config HZ_24
2994		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2995
2996	config HZ_48
2997		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2998
2999	config HZ_100
3000		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
3001
3002	config HZ_128
3003		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
3004
3005	config HZ_250
3006		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
3007
3008	config HZ_256
3009		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
3010
3011	config HZ_1000
3012		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
3013
3014	config HZ_1024
3015		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
3016
3017endchoice
3018
3019config SYS_SUPPORTS_24HZ
3020	bool
3021
3022config SYS_SUPPORTS_48HZ
3023	bool
3024
3025config SYS_SUPPORTS_100HZ
3026	bool
3027
3028config SYS_SUPPORTS_128HZ
3029	bool
3030
3031config SYS_SUPPORTS_250HZ
3032	bool
3033
3034config SYS_SUPPORTS_256HZ
3035	bool
3036
3037config SYS_SUPPORTS_1000HZ
3038	bool
3039
3040config SYS_SUPPORTS_1024HZ
3041	bool
3042
3043config SYS_SUPPORTS_ARBIT_HZ
3044	bool
3045	default y if !SYS_SUPPORTS_24HZ && \
3046		     !SYS_SUPPORTS_48HZ && \
3047		     !SYS_SUPPORTS_100HZ && \
3048		     !SYS_SUPPORTS_128HZ && \
3049		     !SYS_SUPPORTS_250HZ && \
3050		     !SYS_SUPPORTS_256HZ && \
3051		     !SYS_SUPPORTS_1000HZ && \
3052		     !SYS_SUPPORTS_1024HZ
3053
3054config HZ
3055	int
3056	default 24 if HZ_24
3057	default 48 if HZ_48
3058	default 100 if HZ_100
3059	default 128 if HZ_128
3060	default 250 if HZ_250
3061	default 256 if HZ_256
3062	default 1000 if HZ_1000
3063	default 1024 if HZ_1024
3064
3065config SCHED_HRTICK
3066	def_bool HIGH_RES_TIMERS
3067
3068config KEXEC
3069	bool "Kexec system call"
3070	select KEXEC_CORE
3071	help
3072	  kexec is a system call that implements the ability to shutdown your
3073	  current kernel, and to start another kernel.  It is like a reboot
3074	  but it is independent of the system firmware.   And like a reboot
3075	  you can start any kernel with it, not just Linux.
3076
3077	  The name comes from the similarity to the exec system call.
3078
3079	  It is an ongoing process to be certain the hardware in a machine
3080	  is properly shutdown, so do not be surprised if this code does not
3081	  initially work for you.  As of this writing the exact hardware
3082	  interface is strongly in flux, so no good recommendation can be
3083	  made.
3084
3085config CRASH_DUMP
3086	bool "Kernel crash dumps"
3087	help
3088	  Generate crash dump after being started by kexec.
3089	  This should be normally only set in special crash dump kernels
3090	  which are loaded in the main kernel with kexec-tools into
3091	  a specially reserved region and then later executed after
3092	  a crash by kdump/kexec. The crash dump kernel must be compiled
3093	  to a memory address not used by the main kernel or firmware using
3094	  PHYSICAL_START.
3095
3096config PHYSICAL_START
3097	hex "Physical address where the kernel is loaded"
3098	default "0xffffffff84000000"
3099	depends on CRASH_DUMP
3100	help
3101	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3102	  If you plan to use kernel for capturing the crash dump change
3103	  this value to start of the reserved region (the "X" value as
3104	  specified in the "crashkernel=YM@XM" command line boot parameter
3105	  passed to the panic-ed kernel).
3106
3107config MIPS_O32_FP64_SUPPORT
3108	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3109	depends on 32BIT || MIPS32_O32
3110	help
3111	  When this is enabled, the kernel will support use of 64-bit floating
3112	  point registers with binaries using the O32 ABI along with the
3113	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3114	  32-bit MIPS systems this support is at the cost of increasing the
3115	  size and complexity of the compiled FPU emulator. Thus if you are
3116	  running a MIPS32 system and know that none of your userland binaries
3117	  will require 64-bit floating point, you may wish to reduce the size
3118	  of your kernel & potentially improve FP emulation performance by
3119	  saying N here.
3120
3121	  Although binutils currently supports use of this flag the details
3122	  concerning its effect upon the O32 ABI in userland are still being
3123	  worked on. In order to avoid userland becoming dependent upon current
3124	  behaviour before the details have been finalised, this option should
3125	  be considered experimental and only enabled by those working upon
3126	  said details.
3127
3128	  If unsure, say N.
3129
3130config USE_OF
3131	bool
3132	select OF
3133	select OF_EARLY_FLATTREE
3134	select IRQ_DOMAIN
3135
3136config UHI_BOOT
3137	bool
3138
3139config BUILTIN_DTB
3140	bool
3141
3142choice
3143	prompt "Kernel appended dtb support" if USE_OF
3144	default MIPS_NO_APPENDED_DTB
3145
3146	config MIPS_NO_APPENDED_DTB
3147		bool "None"
3148		help
3149		  Do not enable appended dtb support.
3150
3151	config MIPS_ELF_APPENDED_DTB
3152		bool "vmlinux"
3153		help
3154		  With this option, the boot code will look for a device tree binary
3155		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3156		  it is empty and the DTB can be appended using binutils command
3157		  objcopy:
3158
3159		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3160
3161		  This is meant as a backward compatibility convenience for those
3162		  systems with a bootloader that can't be upgraded to accommodate
3163		  the documented boot protocol using a device tree.
3164
3165	config MIPS_RAW_APPENDED_DTB
3166		bool "vmlinux.bin or vmlinuz.bin"
3167		help
3168		  With this option, the boot code will look for a device tree binary
3169		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3170		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3171
3172		  This is meant as a backward compatibility convenience for those
3173		  systems with a bootloader that can't be upgraded to accommodate
3174		  the documented boot protocol using a device tree.
3175
3176		  Beware that there is very little in terms of protection against
3177		  this option being confused by leftover garbage in memory that might
3178		  look like a DTB header after a reboot if no actual DTB is appended
3179		  to vmlinux.bin.  Do not leave this option active in a production kernel
3180		  if you don't intend to always append a DTB.
3181endchoice
3182
3183choice
3184	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3185	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3186					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3187					 !CAVIUM_OCTEON_SOC
3188	default MIPS_CMDLINE_FROM_BOOTLOADER
3189
3190	config MIPS_CMDLINE_FROM_DTB
3191		depends on USE_OF
3192		bool "Dtb kernel arguments if available"
3193
3194	config MIPS_CMDLINE_DTB_EXTEND
3195		depends on USE_OF
3196		bool "Extend dtb kernel arguments with bootloader arguments"
3197
3198	config MIPS_CMDLINE_FROM_BOOTLOADER
3199		bool "Bootloader kernel arguments if available"
3200
3201	config MIPS_CMDLINE_BUILTIN_EXTEND
3202		depends on CMDLINE_BOOL
3203		bool "Extend builtin kernel arguments with bootloader arguments"
3204endchoice
3205
3206endmenu
3207
3208config LOCKDEP_SUPPORT
3209	bool
3210	default y
3211
3212config STACKTRACE_SUPPORT
3213	bool
3214	default y
3215
3216config PGTABLE_LEVELS
3217	int
3218	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3219	default 3 if 64BIT && !PAGE_SIZE_64KB
3220	default 2
3221
3222config MIPS_AUTO_PFN_OFFSET
3223	bool
3224
3225menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3226
3227config PCI_DRIVERS_GENERIC
3228	select PCI_DOMAINS_GENERIC if PCI
3229	bool
3230
3231config PCI_DRIVERS_LEGACY
3232	def_bool !PCI_DRIVERS_GENERIC
3233	select NO_GENERIC_PCI_IOPORT_MAP
3234	select PCI_DOMAINS if PCI
3235
3236#
3237# ISA support is now enabled via select.  Too many systems still have the one
3238# or other ISA chip on the board that users don't know about so don't expect
3239# users to choose the right thing ...
3240#
3241config ISA
3242	bool
3243
3244config TC
3245	bool "TURBOchannel support"
3246	depends on MACH_DECSTATION
3247	help
3248	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3249	  processors.  TURBOchannel programming specifications are available
3250	  at:
3251	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3252	  and:
3253	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3254	  Linux driver support status is documented at:
3255	  <http://www.linux-mips.org/wiki/DECstation>
3256
3257config MMU
3258	bool
3259	default y
3260
3261config ARCH_MMAP_RND_BITS_MIN
3262	default 12 if 64BIT
3263	default 8
3264
3265config ARCH_MMAP_RND_BITS_MAX
3266	default 18 if 64BIT
3267	default 15
3268
3269config ARCH_MMAP_RND_COMPAT_BITS_MIN
3270	default 8
3271
3272config ARCH_MMAP_RND_COMPAT_BITS_MAX
3273	default 15
3274
3275config I8253
3276	bool
3277	select CLKSRC_I8253
3278	select CLKEVT_I8253
3279	select MIPS_EXTERNAL_TIMER
3280
3281config ZONE_DMA
3282	bool
3283
3284config ZONE_DMA32
3285	bool
3286
3287endmenu
3288
3289config TRAD_SIGNALS
3290	bool
3291
3292config MIPS32_COMPAT
3293	bool
3294
3295config COMPAT
3296	bool
3297
3298config SYSVIPC_COMPAT
3299	bool
3300
3301config MIPS32_O32
3302	bool "Kernel support for o32 binaries"
3303	depends on 64BIT
3304	select ARCH_WANT_OLD_COMPAT_IPC
3305	select COMPAT
3306	select MIPS32_COMPAT
3307	select SYSVIPC_COMPAT if SYSVIPC
3308	help
3309	  Select this option if you want to run o32 binaries.  These are pure
3310	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3311	  existing binaries are in this format.
3312
3313	  If unsure, say Y.
3314
3315config MIPS32_N32
3316	bool "Kernel support for n32 binaries"
3317	depends on 64BIT
3318	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3319	select COMPAT
3320	select MIPS32_COMPAT
3321	select SYSVIPC_COMPAT if SYSVIPC
3322	help
3323	  Select this option if you want to run n32 binaries.  These are
3324	  64-bit binaries using 32-bit quantities for addressing and certain
3325	  data that would normally be 64-bit.  They are used in special
3326	  cases.
3327
3328	  If unsure, say N.
3329
3330menu "Power management options"
3331
3332config ARCH_HIBERNATION_POSSIBLE
3333	def_bool y
3334	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3335
3336config ARCH_SUSPEND_POSSIBLE
3337	def_bool y
3338	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3339
3340source "kernel/power/Kconfig"
3341
3342endmenu
3343
3344config MIPS_EXTERNAL_TIMER
3345	bool
3346
3347menu "CPU Power Management"
3348
3349if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3350source "drivers/cpufreq/Kconfig"
3351endif
3352
3353source "drivers/cpuidle/Kconfig"
3354
3355endmenu
3356
3357source "drivers/firmware/Kconfig"
3358
3359source "arch/mips/kvm/Kconfig"
3360
3361source "arch/mips/vdso/Kconfig"
3362