xref: /openbmc/linux/arch/mips/Kconfig (revision 35f752be)
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 COMMON_CLK
205	select DMA_NONCOHERENT
206	select CEVT_R4K
207	select CSRC_R4K
208	select IRQ_MIPS_CPU
209	select NO_EXCEPT_FILL
210	select SWAP_IO_SPACE
211	select SYS_HAS_CPU_MIPS32_R1
212	select SYS_HAS_EARLY_PRINTK
213	select SYS_SUPPORTS_32BIT_KERNEL
214	select SYS_SUPPORTS_LITTLE_ENDIAN
215	select SYS_SUPPORTS_MIPS16
216	select SYS_SUPPORTS_ZBOOT_UART16550
217	select GPIOLIB
218	select VLYNQ
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 COMMON_CLK
634	select CSRC_R4K
635	select BOOT_RAW
636	select DMA_NONCOHERENT
637	select IRQ_MIPS_CPU
638	select USE_OF
639	select SYS_HAS_CPU_MIPS32_R1
640	select SYS_HAS_CPU_MIPS32_R2
641	select SYS_SUPPORTS_32BIT_KERNEL
642	select SYS_SUPPORTS_LITTLE_ENDIAN
643	select SYS_SUPPORTS_MIPS16
644	select SYS_SUPPORTS_ZBOOT
645	select SYS_HAS_EARLY_PRINTK
646	select CLKDEV_LOOKUP
647	select ARCH_HAS_RESET_CONTROLLER
648	select RESET_CONTROLLER
649
650config MACH_REALTEK_RTL
651	bool "Realtek RTL838x/RTL839x based machines"
652	select MIPS_GENERIC
653	select DMA_NONCOHERENT
654	select IRQ_MIPS_CPU
655	select CSRC_R4K
656	select CEVT_R4K
657	select SYS_HAS_CPU_MIPS32_R1
658	select SYS_HAS_CPU_MIPS32_R2
659	select SYS_SUPPORTS_BIG_ENDIAN
660	select SYS_SUPPORTS_32BIT_KERNEL
661	select SYS_SUPPORTS_MIPS16
662	select SYS_SUPPORTS_MULTITHREADING
663	select SYS_SUPPORTS_VPE_LOADER
664	select SYS_HAS_EARLY_PRINTK
665	select SYS_HAS_EARLY_PRINTK_8250
666	select USE_GENERIC_EARLY_PRINTK_8250
667	select BOOT_RAW
668	select PINCTRL
669	select USE_OF
670
671config SGI_IP22
672	bool "SGI IP22 (Indy/Indigo2)"
673	select ARC_MEMORY
674	select ARC_PROMLIB
675	select FW_ARC
676	select FW_ARC32
677	select ARCH_MIGHT_HAVE_PC_SERIO
678	select BOOT_ELF32
679	select CEVT_R4K
680	select CSRC_R4K
681	select DEFAULT_SGI_PARTITION
682	select DMA_NONCOHERENT
683	select HAVE_EISA
684	select I8253
685	select I8259
686	select IP22_CPU_SCACHE
687	select IRQ_MIPS_CPU
688	select GENERIC_ISA_DMA_SUPPORT_BROKEN
689	select SGI_HAS_I8042
690	select SGI_HAS_INDYDOG
691	select SGI_HAS_HAL2
692	select SGI_HAS_SEEQ
693	select SGI_HAS_WD93
694	select SGI_HAS_ZILOG
695	select SWAP_IO_SPACE
696	select SYS_HAS_CPU_R4X00
697	select SYS_HAS_CPU_R5000
698	select SYS_HAS_EARLY_PRINTK
699	select SYS_SUPPORTS_32BIT_KERNEL
700	select SYS_SUPPORTS_64BIT_KERNEL
701	select SYS_SUPPORTS_BIG_ENDIAN
702	select WAR_R4600_V1_INDEX_ICACHEOP
703	select WAR_R4600_V1_HIT_CACHEOP
704	select WAR_R4600_V2_HIT_CACHEOP
705	select MIPS_L1_CACHE_SHIFT_7
706	help
707	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
708	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
709	  that runs on these, say Y here.
710
711config SGI_IP27
712	bool "SGI IP27 (Origin200/2000)"
713	select ARCH_HAS_PHYS_TO_DMA
714	select ARCH_SPARSEMEM_ENABLE
715	select FW_ARC
716	select FW_ARC64
717	select ARC_CMDLINE_ONLY
718	select BOOT_ELF64
719	select DEFAULT_SGI_PARTITION
720	select FORCE_PCI
721	select SYS_HAS_EARLY_PRINTK
722	select HAVE_PCI
723	select IRQ_MIPS_CPU
724	select IRQ_DOMAIN_HIERARCHY
725	select NR_CPUS_DEFAULT_64
726	select PCI_DRIVERS_GENERIC
727	select PCI_XTALK_BRIDGE
728	select SYS_HAS_CPU_R10000
729	select SYS_SUPPORTS_64BIT_KERNEL
730	select SYS_SUPPORTS_BIG_ENDIAN
731	select SYS_SUPPORTS_NUMA
732	select SYS_SUPPORTS_SMP
733	select WAR_R10000_LLSC
734	select MIPS_L1_CACHE_SHIFT_7
735	select NUMA
736	help
737	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
738	  workstations.  To compile a Linux kernel that runs on these, say Y
739	  here.
740
741config SGI_IP28
742	bool "SGI IP28 (Indigo2 R10k)"
743	select ARC_MEMORY
744	select ARC_PROMLIB
745	select FW_ARC
746	select FW_ARC64
747	select ARCH_MIGHT_HAVE_PC_SERIO
748	select BOOT_ELF64
749	select CEVT_R4K
750	select CSRC_R4K
751	select DEFAULT_SGI_PARTITION
752	select DMA_NONCOHERENT
753	select GENERIC_ISA_DMA_SUPPORT_BROKEN
754	select IRQ_MIPS_CPU
755	select HAVE_EISA
756	select I8253
757	select I8259
758	select SGI_HAS_I8042
759	select SGI_HAS_INDYDOG
760	select SGI_HAS_HAL2
761	select SGI_HAS_SEEQ
762	select SGI_HAS_WD93
763	select SGI_HAS_ZILOG
764	select SWAP_IO_SPACE
765	select SYS_HAS_CPU_R10000
766	select SYS_HAS_EARLY_PRINTK
767	select SYS_SUPPORTS_64BIT_KERNEL
768	select SYS_SUPPORTS_BIG_ENDIAN
769	select WAR_R10000_LLSC
770	select MIPS_L1_CACHE_SHIFT_7
771	help
772	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
773	  kernel that runs on these, say Y here.
774
775config SGI_IP30
776	bool "SGI IP30 (Octane/Octane2)"
777	select ARCH_HAS_PHYS_TO_DMA
778	select FW_ARC
779	select FW_ARC64
780	select BOOT_ELF64
781	select CEVT_R4K
782	select CSRC_R4K
783	select FORCE_PCI
784	select SYNC_R4K if SMP
785	select ZONE_DMA32
786	select HAVE_PCI
787	select IRQ_MIPS_CPU
788	select IRQ_DOMAIN_HIERARCHY
789	select NR_CPUS_DEFAULT_2
790	select PCI_DRIVERS_GENERIC
791	select PCI_XTALK_BRIDGE
792	select SYS_HAS_EARLY_PRINTK
793	select SYS_HAS_CPU_R10000
794	select SYS_SUPPORTS_64BIT_KERNEL
795	select SYS_SUPPORTS_BIG_ENDIAN
796	select SYS_SUPPORTS_SMP
797	select WAR_R10000_LLSC
798	select MIPS_L1_CACHE_SHIFT_7
799	select ARC_MEMORY
800	help
801	  These are the SGI Octane and Octane2 graphics workstations.  To
802	  compile a Linux kernel that runs on these, say Y here.
803
804config SGI_IP32
805	bool "SGI IP32 (O2)"
806	select ARC_MEMORY
807	select ARC_PROMLIB
808	select ARCH_HAS_PHYS_TO_DMA
809	select FW_ARC
810	select FW_ARC32
811	select BOOT_ELF32
812	select CEVT_R4K
813	select CSRC_R4K
814	select DMA_NONCOHERENT
815	select HAVE_PCI
816	select IRQ_MIPS_CPU
817	select R5000_CPU_SCACHE
818	select RM7000_CPU_SCACHE
819	select SYS_HAS_CPU_R5000
820	select SYS_HAS_CPU_R10000 if BROKEN
821	select SYS_HAS_CPU_RM7000
822	select SYS_HAS_CPU_NEVADA
823	select SYS_SUPPORTS_64BIT_KERNEL
824	select SYS_SUPPORTS_BIG_ENDIAN
825	select WAR_ICACHE_REFILLS
826	help
827	  If you want this kernel to run on SGI O2 workstation, say Y here.
828
829config SIBYTE_CRHINE
830	bool "Sibyte BCM91120C-CRhine"
831	select BOOT_ELF32
832	select SIBYTE_BCM1120
833	select SWAP_IO_SPACE
834	select SYS_HAS_CPU_SB1
835	select SYS_SUPPORTS_BIG_ENDIAN
836	select SYS_SUPPORTS_LITTLE_ENDIAN
837
838config SIBYTE_CARMEL
839	bool "Sibyte BCM91120x-Carmel"
840	select BOOT_ELF32
841	select SIBYTE_BCM1120
842	select SWAP_IO_SPACE
843	select SYS_HAS_CPU_SB1
844	select SYS_SUPPORTS_BIG_ENDIAN
845	select SYS_SUPPORTS_LITTLE_ENDIAN
846
847config SIBYTE_CRHONE
848	bool "Sibyte BCM91125C-CRhone"
849	select BOOT_ELF32
850	select SIBYTE_BCM1125
851	select SWAP_IO_SPACE
852	select SYS_HAS_CPU_SB1
853	select SYS_SUPPORTS_BIG_ENDIAN
854	select SYS_SUPPORTS_HIGHMEM
855	select SYS_SUPPORTS_LITTLE_ENDIAN
856
857config SIBYTE_RHONE
858	bool "Sibyte BCM91125E-Rhone"
859	select BOOT_ELF32
860	select SIBYTE_BCM1125H
861	select SWAP_IO_SPACE
862	select SYS_HAS_CPU_SB1
863	select SYS_SUPPORTS_BIG_ENDIAN
864	select SYS_SUPPORTS_LITTLE_ENDIAN
865
866config SIBYTE_SWARM
867	bool "Sibyte BCM91250A-SWARM"
868	select BOOT_ELF32
869	select HAVE_PATA_PLATFORM
870	select SIBYTE_SB1250
871	select SWAP_IO_SPACE
872	select SYS_HAS_CPU_SB1
873	select SYS_SUPPORTS_BIG_ENDIAN
874	select SYS_SUPPORTS_HIGHMEM
875	select SYS_SUPPORTS_LITTLE_ENDIAN
876	select ZONE_DMA32 if 64BIT
877	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
878
879config SIBYTE_LITTLESUR
880	bool "Sibyte BCM91250C2-LittleSur"
881	select BOOT_ELF32
882	select HAVE_PATA_PLATFORM
883	select SIBYTE_SB1250
884	select SWAP_IO_SPACE
885	select SYS_HAS_CPU_SB1
886	select SYS_SUPPORTS_BIG_ENDIAN
887	select SYS_SUPPORTS_HIGHMEM
888	select SYS_SUPPORTS_LITTLE_ENDIAN
889	select ZONE_DMA32 if 64BIT
890
891config SIBYTE_SENTOSA
892	bool "Sibyte BCM91250E-Sentosa"
893	select BOOT_ELF32
894	select SIBYTE_SB1250
895	select SWAP_IO_SPACE
896	select SYS_HAS_CPU_SB1
897	select SYS_SUPPORTS_BIG_ENDIAN
898	select SYS_SUPPORTS_LITTLE_ENDIAN
899	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
900
901config SIBYTE_BIGSUR
902	bool "Sibyte BCM91480B-BigSur"
903	select BOOT_ELF32
904	select NR_CPUS_DEFAULT_4
905	select SIBYTE_BCM1x80
906	select SWAP_IO_SPACE
907	select SYS_HAS_CPU_SB1
908	select SYS_SUPPORTS_BIG_ENDIAN
909	select SYS_SUPPORTS_HIGHMEM
910	select SYS_SUPPORTS_LITTLE_ENDIAN
911	select ZONE_DMA32 if 64BIT
912	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
913
914config SNI_RM
915	bool "SNI RM200/300/400"
916	select ARC_MEMORY
917	select ARC_PROMLIB
918	select FW_ARC if CPU_LITTLE_ENDIAN
919	select FW_ARC32 if CPU_LITTLE_ENDIAN
920	select FW_SNIPROM if CPU_BIG_ENDIAN
921	select ARCH_MAY_HAVE_PC_FDC
922	select ARCH_MIGHT_HAVE_PC_PARPORT
923	select ARCH_MIGHT_HAVE_PC_SERIO
924	select BOOT_ELF32
925	select CEVT_R4K
926	select CSRC_R4K
927	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
928	select DMA_NONCOHERENT
929	select GENERIC_ISA_DMA
930	select HAVE_EISA
931	select HAVE_PCSPKR_PLATFORM
932	select HAVE_PCI
933	select IRQ_MIPS_CPU
934	select I8253
935	select I8259
936	select ISA
937	select MIPS_L1_CACHE_SHIFT_6
938	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
939	select SYS_HAS_CPU_R4X00
940	select SYS_HAS_CPU_R5000
941	select SYS_HAS_CPU_R10000
942	select R5000_CPU_SCACHE
943	select SYS_HAS_EARLY_PRINTK
944	select SYS_SUPPORTS_32BIT_KERNEL
945	select SYS_SUPPORTS_64BIT_KERNEL
946	select SYS_SUPPORTS_BIG_ENDIAN
947	select SYS_SUPPORTS_HIGHMEM
948	select SYS_SUPPORTS_LITTLE_ENDIAN
949	select WAR_R4600_V2_HIT_CACHEOP
950	help
951	  The SNI RM200/300/400 are MIPS-based machines manufactured by
952	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
953	  Technology and now in turn merged with Fujitsu.  Say Y here to
954	  support this machine type.
955
956config MACH_TX39XX
957	bool "Toshiba TX39 series based machines"
958
959config MACH_TX49XX
960	bool "Toshiba TX49 series based machines"
961	select WAR_TX49XX_ICACHE_INDEX_INV
962
963config MIKROTIK_RB532
964	bool "Mikrotik RB532 boards"
965	select CEVT_R4K
966	select CSRC_R4K
967	select DMA_NONCOHERENT
968	select HAVE_PCI
969	select IRQ_MIPS_CPU
970	select SYS_HAS_CPU_MIPS32_R1
971	select SYS_SUPPORTS_32BIT_KERNEL
972	select SYS_SUPPORTS_LITTLE_ENDIAN
973	select SWAP_IO_SPACE
974	select BOOT_RAW
975	select GPIOLIB
976	select MIPS_L1_CACHE_SHIFT_4
977	help
978	  Support the Mikrotik(tm) RouterBoard 532 series,
979	  based on the IDT RC32434 SoC.
980
981config CAVIUM_OCTEON_SOC
982	bool "Cavium Networks Octeon SoC based boards"
983	select CEVT_R4K
984	select ARCH_HAS_PHYS_TO_DMA
985	select HAVE_RAPIDIO
986	select PHYS_ADDR_T_64BIT
987	select SYS_SUPPORTS_64BIT_KERNEL
988	select SYS_SUPPORTS_BIG_ENDIAN
989	select EDAC_SUPPORT
990	select EDAC_ATOMIC_SCRUB
991	select SYS_SUPPORTS_LITTLE_ENDIAN
992	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
993	select SYS_HAS_EARLY_PRINTK
994	select SYS_HAS_CPU_CAVIUM_OCTEON
995	select HAVE_PCI
996	select HAVE_PLAT_DELAY
997	select HAVE_PLAT_FW_INIT_CMDLINE
998	select HAVE_PLAT_MEMCPY
999	select ZONE_DMA32
1000	select HOLES_IN_ZONE
1001	select GPIOLIB
1002	select USE_OF
1003	select ARCH_SPARSEMEM_ENABLE
1004	select SYS_SUPPORTS_SMP
1005	select NR_CPUS_DEFAULT_64
1006	select MIPS_NR_CPU_NR_MAP_1024
1007	select BUILTIN_DTB
1008	select MTD
1009	select MTD_COMPLEX_MAPPINGS
1010	select SWIOTLB
1011	select SYS_SUPPORTS_RELOCATABLE
1012	help
1013	  This option supports all of the Octeon reference boards from Cavium
1014	  Networks. It builds a kernel that dynamically determines the Octeon
1015	  CPU type and supports all known board reference implementations.
1016	  Some of the supported boards are:
1017		EBT3000
1018		EBH3000
1019		EBH3100
1020		Thunder
1021		Kodama
1022		Hikari
1023	  Say Y here for most Octeon reference boards.
1024
1025config NLM_XLR_BOARD
1026	bool "Netlogic XLR/XLS based systems"
1027	select BOOT_ELF32
1028	select NLM_COMMON
1029	select SYS_HAS_CPU_XLR
1030	select SYS_SUPPORTS_SMP
1031	select HAVE_PCI
1032	select SWAP_IO_SPACE
1033	select SYS_SUPPORTS_32BIT_KERNEL
1034	select SYS_SUPPORTS_64BIT_KERNEL
1035	select PHYS_ADDR_T_64BIT
1036	select SYS_SUPPORTS_BIG_ENDIAN
1037	select SYS_SUPPORTS_HIGHMEM
1038	select NR_CPUS_DEFAULT_32
1039	select CEVT_R4K
1040	select CSRC_R4K
1041	select IRQ_MIPS_CPU
1042	select ZONE_DMA32 if 64BIT
1043	select SYNC_R4K
1044	select SYS_HAS_EARLY_PRINTK
1045	select SYS_SUPPORTS_ZBOOT
1046	select SYS_SUPPORTS_ZBOOT_UART16550
1047	help
1048	  Support for systems based on Netlogic XLR and XLS processors.
1049	  Say Y here if you have a XLR or XLS based board.
1050
1051config NLM_XLP_BOARD
1052	bool "Netlogic XLP based systems"
1053	select BOOT_ELF32
1054	select NLM_COMMON
1055	select SYS_HAS_CPU_XLP
1056	select SYS_SUPPORTS_SMP
1057	select HAVE_PCI
1058	select SYS_SUPPORTS_32BIT_KERNEL
1059	select SYS_SUPPORTS_64BIT_KERNEL
1060	select PHYS_ADDR_T_64BIT
1061	select GPIOLIB
1062	select SYS_SUPPORTS_BIG_ENDIAN
1063	select SYS_SUPPORTS_LITTLE_ENDIAN
1064	select SYS_SUPPORTS_HIGHMEM
1065	select NR_CPUS_DEFAULT_32
1066	select CEVT_R4K
1067	select CSRC_R4K
1068	select IRQ_MIPS_CPU
1069	select ZONE_DMA32 if 64BIT
1070	select SYNC_R4K
1071	select SYS_HAS_EARLY_PRINTK
1072	select USE_OF
1073	select SYS_SUPPORTS_ZBOOT
1074	select SYS_SUPPORTS_ZBOOT_UART16550
1075	help
1076	  This board is based on Netlogic XLP Processor.
1077	  Say Y here if you have a XLP based board.
1078
1079endchoice
1080
1081source "arch/mips/alchemy/Kconfig"
1082source "arch/mips/ath25/Kconfig"
1083source "arch/mips/ath79/Kconfig"
1084source "arch/mips/bcm47xx/Kconfig"
1085source "arch/mips/bcm63xx/Kconfig"
1086source "arch/mips/bmips/Kconfig"
1087source "arch/mips/generic/Kconfig"
1088source "arch/mips/ingenic/Kconfig"
1089source "arch/mips/jazz/Kconfig"
1090source "arch/mips/lantiq/Kconfig"
1091source "arch/mips/pic32/Kconfig"
1092source "arch/mips/pistachio/Kconfig"
1093source "arch/mips/ralink/Kconfig"
1094source "arch/mips/sgi-ip27/Kconfig"
1095source "arch/mips/sibyte/Kconfig"
1096source "arch/mips/txx9/Kconfig"
1097source "arch/mips/vr41xx/Kconfig"
1098source "arch/mips/cavium-octeon/Kconfig"
1099source "arch/mips/loongson2ef/Kconfig"
1100source "arch/mips/loongson32/Kconfig"
1101source "arch/mips/loongson64/Kconfig"
1102source "arch/mips/netlogic/Kconfig"
1103
1104endmenu
1105
1106config GENERIC_HWEIGHT
1107	bool
1108	default y
1109
1110config GENERIC_CALIBRATE_DELAY
1111	bool
1112	default y
1113
1114config SCHED_OMIT_FRAME_POINTER
1115	bool
1116	default y
1117
1118#
1119# Select some configuration options automatically based on user selections.
1120#
1121config FW_ARC
1122	bool
1123
1124config ARCH_MAY_HAVE_PC_FDC
1125	bool
1126
1127config BOOT_RAW
1128	bool
1129
1130config CEVT_BCM1480
1131	bool
1132
1133config CEVT_DS1287
1134	bool
1135
1136config CEVT_GT641XX
1137	bool
1138
1139config CEVT_R4K
1140	bool
1141
1142config CEVT_SB1250
1143	bool
1144
1145config CEVT_TXX9
1146	bool
1147
1148config CSRC_BCM1480
1149	bool
1150
1151config CSRC_IOASIC
1152	bool
1153
1154config CSRC_R4K
1155	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1156	bool
1157
1158config CSRC_SB1250
1159	bool
1160
1161config MIPS_CLOCK_VSYSCALL
1162	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1163
1164config GPIO_TXX9
1165	select GPIOLIB
1166	bool
1167
1168config FW_CFE
1169	bool
1170
1171config ARCH_SUPPORTS_UPROBES
1172	bool
1173
1174config DMA_PERDEV_COHERENT
1175	bool
1176	select ARCH_HAS_SETUP_DMA_OPS
1177	select DMA_NONCOHERENT
1178
1179config DMA_NONCOHERENT
1180	bool
1181	#
1182	# MIPS allows mixing "slightly different" Cacheability and Coherency
1183	# Attribute bits.  It is believed that the uncached access through
1184	# KSEG1 and the implementation specific "uncached accelerated" used
1185	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1186	# significant advantages.
1187	#
1188	select ARCH_HAS_DMA_WRITE_COMBINE
1189	select ARCH_HAS_DMA_PREP_COHERENT
1190	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1191	select ARCH_HAS_DMA_SET_UNCACHED
1192	select DMA_NONCOHERENT_MMAP
1193	select NEED_DMA_MAP_STATE
1194
1195config SYS_HAS_EARLY_PRINTK
1196	bool
1197
1198config SYS_SUPPORTS_HOTPLUG_CPU
1199	bool
1200
1201config MIPS_BONITO64
1202	bool
1203
1204config MIPS_MSC
1205	bool
1206
1207config SYNC_R4K
1208	bool
1209
1210config NO_IOPORT_MAP
1211	def_bool n
1212
1213config GENERIC_CSUM
1214	def_bool CPU_NO_LOAD_STORE_LR
1215
1216config GENERIC_ISA_DMA
1217	bool
1218	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1219	select ISA_DMA_API
1220
1221config GENERIC_ISA_DMA_SUPPORT_BROKEN
1222	bool
1223	select GENERIC_ISA_DMA
1224
1225config HAVE_PLAT_DELAY
1226	bool
1227
1228config HAVE_PLAT_FW_INIT_CMDLINE
1229	bool
1230
1231config HAVE_PLAT_MEMCPY
1232	bool
1233
1234config ISA_DMA_API
1235	bool
1236
1237config HOLES_IN_ZONE
1238	bool
1239
1240config SYS_SUPPORTS_RELOCATABLE
1241	bool
1242	help
1243	  Selected if the platform supports relocating the kernel.
1244	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1245	  to allow access to command line and entropy sources.
1246
1247config MIPS_CBPF_JIT
1248	def_bool y
1249	depends on BPF_JIT && HAVE_CBPF_JIT
1250
1251config MIPS_EBPF_JIT
1252	def_bool y
1253	depends on BPF_JIT && HAVE_EBPF_JIT
1254
1255
1256#
1257# Endianness selection.  Sufficiently obscure so many users don't know what to
1258# answer,so we try hard to limit the available choices.  Also the use of a
1259# choice statement should be more obvious to the user.
1260#
1261choice
1262	prompt "Endianness selection"
1263	help
1264	  Some MIPS machines can be configured for either little or big endian
1265	  byte order. These modes require different kernels and a different
1266	  Linux distribution.  In general there is one preferred byteorder for a
1267	  particular system but some systems are just as commonly used in the
1268	  one or the other endianness.
1269
1270config CPU_BIG_ENDIAN
1271	bool "Big endian"
1272	depends on SYS_SUPPORTS_BIG_ENDIAN
1273
1274config CPU_LITTLE_ENDIAN
1275	bool "Little endian"
1276	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1277
1278endchoice
1279
1280config EXPORT_UASM
1281	bool
1282
1283config SYS_SUPPORTS_APM_EMULATION
1284	bool
1285
1286config SYS_SUPPORTS_BIG_ENDIAN
1287	bool
1288
1289config SYS_SUPPORTS_LITTLE_ENDIAN
1290	bool
1291
1292config MIPS_HUGE_TLB_SUPPORT
1293	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1294
1295config IRQ_MSP_SLP
1296	bool
1297
1298config IRQ_MSP_CIC
1299	bool
1300
1301config IRQ_TXX9
1302	bool
1303
1304config IRQ_GT641XX
1305	bool
1306
1307config PCI_GT64XXX_PCI0
1308	bool
1309
1310config PCI_XTALK_BRIDGE
1311	bool
1312
1313config NO_EXCEPT_FILL
1314	bool
1315
1316config MIPS_SPRAM
1317	bool
1318
1319config SWAP_IO_SPACE
1320	bool
1321
1322config SGI_HAS_INDYDOG
1323	bool
1324
1325config SGI_HAS_HAL2
1326	bool
1327
1328config SGI_HAS_SEEQ
1329	bool
1330
1331config SGI_HAS_WD93
1332	bool
1333
1334config SGI_HAS_ZILOG
1335	bool
1336
1337config SGI_HAS_I8042
1338	bool
1339
1340config DEFAULT_SGI_PARTITION
1341	bool
1342
1343config FW_ARC32
1344	bool
1345
1346config FW_SNIPROM
1347	bool
1348
1349config BOOT_ELF32
1350	bool
1351
1352config MIPS_L1_CACHE_SHIFT_4
1353	bool
1354
1355config MIPS_L1_CACHE_SHIFT_5
1356	bool
1357
1358config MIPS_L1_CACHE_SHIFT_6
1359	bool
1360
1361config MIPS_L1_CACHE_SHIFT_7
1362	bool
1363
1364config MIPS_L1_CACHE_SHIFT
1365	int
1366	default "7" if MIPS_L1_CACHE_SHIFT_7
1367	default "6" if MIPS_L1_CACHE_SHIFT_6
1368	default "5" if MIPS_L1_CACHE_SHIFT_5
1369	default "4" if MIPS_L1_CACHE_SHIFT_4
1370	default "5"
1371
1372config ARC_CMDLINE_ONLY
1373	bool
1374
1375config ARC_CONSOLE
1376	bool "ARC console support"
1377	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1378
1379config ARC_MEMORY
1380	bool
1381
1382config ARC_PROMLIB
1383	bool
1384
1385config FW_ARC64
1386	bool
1387
1388config BOOT_ELF64
1389	bool
1390
1391menu "CPU selection"
1392
1393choice
1394	prompt "CPU type"
1395	default CPU_R4X00
1396
1397config CPU_LOONGSON64
1398	bool "Loongson 64-bit CPU"
1399	depends on SYS_HAS_CPU_LOONGSON64
1400	select ARCH_HAS_PHYS_TO_DMA
1401	select CPU_MIPSR2
1402	select CPU_HAS_PREFETCH
1403	select CPU_SUPPORTS_64BIT_KERNEL
1404	select CPU_SUPPORTS_HIGHMEM
1405	select CPU_SUPPORTS_HUGEPAGES
1406	select CPU_SUPPORTS_MSA
1407	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1408	select CPU_MIPSR2_IRQ_VI
1409	select WEAK_ORDERING
1410	select WEAK_REORDERING_BEYOND_LLSC
1411	select MIPS_ASID_BITS_VARIABLE
1412	select MIPS_PGD_C0_CONTEXT
1413	select MIPS_L1_CACHE_SHIFT_6
1414	select GPIOLIB
1415	select SWIOTLB
1416	select HAVE_KVM
1417	help
1418		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1419		cores implements the MIPS64R2 instruction set with many extensions,
1420		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1421		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1422		Loongson-2E/2F is not covered here and will be removed in future.
1423
1424config LOONGSON3_ENHANCEMENT
1425	bool "New Loongson-3 CPU Enhancements"
1426	default n
1427	depends on CPU_LOONGSON64
1428	help
1429	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1430	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1431	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1432	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1433	  Fast TLB refill support, etc.
1434
1435	  This option enable those enhancements which are not probed at run
1436	  time. If you want a generic kernel to run on all Loongson 3 machines,
1437	  please say 'N' here. If you want a high-performance kernel to run on
1438	  new Loongson-3 machines only, please say 'Y' here.
1439
1440config CPU_LOONGSON3_WORKAROUNDS
1441	bool "Old Loongson-3 LLSC Workarounds"
1442	default y if SMP
1443	depends on CPU_LOONGSON64
1444	help
1445	  Loongson-3 processors have the llsc issues which require workarounds.
1446	  Without workarounds the system may hang unexpectedly.
1447
1448	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1449	  The workarounds have no significant side effect on them but may
1450	  decrease the performance of the system so this option should be
1451	  disabled unless the kernel is intended to be run on old systems.
1452
1453	  If unsure, please say Y.
1454
1455config CPU_LOONGSON3_CPUCFG_EMULATION
1456	bool "Emulate the CPUCFG instruction on older Loongson cores"
1457	default y
1458	depends on CPU_LOONGSON64
1459	help
1460	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1461	  userland to query CPU capabilities, much like CPUID on x86. This
1462	  option provides emulation of the instruction on older Loongson
1463	  cores, back to Loongson-3A1000.
1464
1465	  If unsure, please say Y.
1466
1467config CPU_LOONGSON2E
1468	bool "Loongson 2E"
1469	depends on SYS_HAS_CPU_LOONGSON2E
1470	select CPU_LOONGSON2EF
1471	help
1472	  The Loongson 2E processor implements the MIPS III instruction set
1473	  with many extensions.
1474
1475	  It has an internal FPGA northbridge, which is compatible to
1476	  bonito64.
1477
1478config CPU_LOONGSON2F
1479	bool "Loongson 2F"
1480	depends on SYS_HAS_CPU_LOONGSON2F
1481	select CPU_LOONGSON2EF
1482	select GPIOLIB
1483	help
1484	  The Loongson 2F processor implements the MIPS III instruction set
1485	  with many extensions.
1486
1487	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1488	  have a similar programming interface with FPGA northbridge used in
1489	  Loongson2E.
1490
1491config CPU_LOONGSON1B
1492	bool "Loongson 1B"
1493	depends on SYS_HAS_CPU_LOONGSON1B
1494	select CPU_LOONGSON32
1495	select LEDS_GPIO_REGISTER
1496	help
1497	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1498	  Release 1 instruction set and part of the MIPS32 Release 2
1499	  instruction set.
1500
1501config CPU_LOONGSON1C
1502	bool "Loongson 1C"
1503	depends on SYS_HAS_CPU_LOONGSON1C
1504	select CPU_LOONGSON32
1505	select LEDS_GPIO_REGISTER
1506	help
1507	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1508	  Release 1 instruction set and part of the MIPS32 Release 2
1509	  instruction set.
1510
1511config CPU_MIPS32_R1
1512	bool "MIPS32 Release 1"
1513	depends on SYS_HAS_CPU_MIPS32_R1
1514	select CPU_HAS_PREFETCH
1515	select CPU_SUPPORTS_32BIT_KERNEL
1516	select CPU_SUPPORTS_HIGHMEM
1517	help
1518	  Choose this option to build a kernel for release 1 or later of the
1519	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1520	  MIPS processor are based on a MIPS32 processor.  If you know the
1521	  specific type of processor in your system, choose those that one
1522	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1523	  Release 2 of the MIPS32 architecture is available since several
1524	  years so chances are you even have a MIPS32 Release 2 processor
1525	  in which case you should choose CPU_MIPS32_R2 instead for better
1526	  performance.
1527
1528config CPU_MIPS32_R2
1529	bool "MIPS32 Release 2"
1530	depends on SYS_HAS_CPU_MIPS32_R2
1531	select CPU_HAS_PREFETCH
1532	select CPU_SUPPORTS_32BIT_KERNEL
1533	select CPU_SUPPORTS_HIGHMEM
1534	select CPU_SUPPORTS_MSA
1535	select HAVE_KVM
1536	help
1537	  Choose this option to build a kernel for release 2 or later of the
1538	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1539	  MIPS processor are based on a MIPS32 processor.  If you know the
1540	  specific type of processor in your system, choose those that one
1541	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1542
1543config CPU_MIPS32_R5
1544	bool "MIPS32 Release 5"
1545	depends on SYS_HAS_CPU_MIPS32_R5
1546	select CPU_HAS_PREFETCH
1547	select CPU_SUPPORTS_32BIT_KERNEL
1548	select CPU_SUPPORTS_HIGHMEM
1549	select CPU_SUPPORTS_MSA
1550	select HAVE_KVM
1551	select MIPS_O32_FP64_SUPPORT
1552	help
1553	  Choose this option to build a kernel for release 5 or later of the
1554	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1555	  family, are based on a MIPS32r5 processor. If you own an older
1556	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1557
1558config CPU_MIPS32_R6
1559	bool "MIPS32 Release 6"
1560	depends on SYS_HAS_CPU_MIPS32_R6
1561	select CPU_HAS_PREFETCH
1562	select CPU_NO_LOAD_STORE_LR
1563	select CPU_SUPPORTS_32BIT_KERNEL
1564	select CPU_SUPPORTS_HIGHMEM
1565	select CPU_SUPPORTS_MSA
1566	select HAVE_KVM
1567	select MIPS_O32_FP64_SUPPORT
1568	help
1569	  Choose this option to build a kernel for release 6 or later of the
1570	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1571	  family, are based on a MIPS32r6 processor. If you own an older
1572	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1573
1574config CPU_MIPS64_R1
1575	bool "MIPS64 Release 1"
1576	depends on SYS_HAS_CPU_MIPS64_R1
1577	select CPU_HAS_PREFETCH
1578	select CPU_SUPPORTS_32BIT_KERNEL
1579	select CPU_SUPPORTS_64BIT_KERNEL
1580	select CPU_SUPPORTS_HIGHMEM
1581	select CPU_SUPPORTS_HUGEPAGES
1582	help
1583	  Choose this option to build a kernel for release 1 or later of the
1584	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1585	  MIPS processor are based on a MIPS64 processor.  If you know the
1586	  specific type of processor in your system, choose those that one
1587	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1588	  Release 2 of the MIPS64 architecture is available since several
1589	  years so chances are you even have a MIPS64 Release 2 processor
1590	  in which case you should choose CPU_MIPS64_R2 instead for better
1591	  performance.
1592
1593config CPU_MIPS64_R2
1594	bool "MIPS64 Release 2"
1595	depends on SYS_HAS_CPU_MIPS64_R2
1596	select CPU_HAS_PREFETCH
1597	select CPU_SUPPORTS_32BIT_KERNEL
1598	select CPU_SUPPORTS_64BIT_KERNEL
1599	select CPU_SUPPORTS_HIGHMEM
1600	select CPU_SUPPORTS_HUGEPAGES
1601	select CPU_SUPPORTS_MSA
1602	select HAVE_KVM
1603	help
1604	  Choose this option to build a kernel for release 2 or later of the
1605	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1606	  MIPS processor are based on a MIPS64 processor.  If you know the
1607	  specific type of processor in your system, choose those that one
1608	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1609
1610config CPU_MIPS64_R5
1611	bool "MIPS64 Release 5"
1612	depends on SYS_HAS_CPU_MIPS64_R5
1613	select CPU_HAS_PREFETCH
1614	select CPU_SUPPORTS_32BIT_KERNEL
1615	select CPU_SUPPORTS_64BIT_KERNEL
1616	select CPU_SUPPORTS_HIGHMEM
1617	select CPU_SUPPORTS_HUGEPAGES
1618	select CPU_SUPPORTS_MSA
1619	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1620	select HAVE_KVM
1621	help
1622	  Choose this option to build a kernel for release 5 or later of the
1623	  MIPS64 architecture.  This is a intermediate MIPS architecture
1624	  release partly implementing release 6 features. Though there is no
1625	  any hardware known to be based on this release.
1626
1627config CPU_MIPS64_R6
1628	bool "MIPS64 Release 6"
1629	depends on SYS_HAS_CPU_MIPS64_R6
1630	select CPU_HAS_PREFETCH
1631	select CPU_NO_LOAD_STORE_LR
1632	select CPU_SUPPORTS_32BIT_KERNEL
1633	select CPU_SUPPORTS_64BIT_KERNEL
1634	select CPU_SUPPORTS_HIGHMEM
1635	select CPU_SUPPORTS_HUGEPAGES
1636	select CPU_SUPPORTS_MSA
1637	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1638	select HAVE_KVM
1639	help
1640	  Choose this option to build a kernel for release 6 or later of the
1641	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1642	  family, are based on a MIPS64r6 processor. If you own an older
1643	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1644
1645config CPU_P5600
1646	bool "MIPS Warrior P5600"
1647	depends on SYS_HAS_CPU_P5600
1648	select CPU_HAS_PREFETCH
1649	select CPU_SUPPORTS_32BIT_KERNEL
1650	select CPU_SUPPORTS_HIGHMEM
1651	select CPU_SUPPORTS_MSA
1652	select CPU_SUPPORTS_CPUFREQ
1653	select CPU_MIPSR2_IRQ_VI
1654	select CPU_MIPSR2_IRQ_EI
1655	select HAVE_KVM
1656	select MIPS_O32_FP64_SUPPORT
1657	help
1658	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1659	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1660	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1661	  level features like up to six P5600 calculation cores, CM2 with L2
1662	  cache, IOCU/IOMMU (though might be unused depending on the system-
1663	  specific IP core configuration), GIC, CPC, virtualisation module,
1664	  eJTAG and PDtrace.
1665
1666config CPU_R3000
1667	bool "R3000"
1668	depends on SYS_HAS_CPU_R3000
1669	select CPU_HAS_WB
1670	select CPU_R3K_TLB
1671	select CPU_SUPPORTS_32BIT_KERNEL
1672	select CPU_SUPPORTS_HIGHMEM
1673	help
1674	  Please make sure to pick the right CPU type. Linux/MIPS is not
1675	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1676	  *not* work on R4000 machines and vice versa.  However, since most
1677	  of the supported machines have an R4000 (or similar) CPU, R4x00
1678	  might be a safe bet.  If the resulting kernel does not work,
1679	  try to recompile with R3000.
1680
1681config CPU_TX39XX
1682	bool "R39XX"
1683	depends on SYS_HAS_CPU_TX39XX
1684	select CPU_SUPPORTS_32BIT_KERNEL
1685	select CPU_R3K_TLB
1686
1687config CPU_VR41XX
1688	bool "R41xx"
1689	depends on SYS_HAS_CPU_VR41XX
1690	select CPU_SUPPORTS_32BIT_KERNEL
1691	select CPU_SUPPORTS_64BIT_KERNEL
1692	help
1693	  The options selects support for the NEC VR4100 series of processors.
1694	  Only choose this option if you have one of these processors as a
1695	  kernel built with this option will not run on any other type of
1696	  processor or vice versa.
1697
1698config CPU_R4300
1699	bool "R4300"
1700	depends on SYS_HAS_CPU_R4300
1701	select CPU_SUPPORTS_32BIT_KERNEL
1702	select CPU_SUPPORTS_64BIT_KERNEL
1703	select CPU_HAS_LOAD_STORE_LR
1704	help
1705	  MIPS Technologies R4300-series processors.
1706
1707config CPU_R4X00
1708	bool "R4x00"
1709	depends on SYS_HAS_CPU_R4X00
1710	select CPU_SUPPORTS_32BIT_KERNEL
1711	select CPU_SUPPORTS_64BIT_KERNEL
1712	select CPU_SUPPORTS_HUGEPAGES
1713	help
1714	  MIPS Technologies R4000-series processors other than 4300, including
1715	  the R4000, R4400, R4600, and 4700.
1716
1717config CPU_TX49XX
1718	bool "R49XX"
1719	depends on SYS_HAS_CPU_TX49XX
1720	select CPU_HAS_PREFETCH
1721	select CPU_SUPPORTS_32BIT_KERNEL
1722	select CPU_SUPPORTS_64BIT_KERNEL
1723	select CPU_SUPPORTS_HUGEPAGES
1724
1725config CPU_R5000
1726	bool "R5000"
1727	depends on SYS_HAS_CPU_R5000
1728	select CPU_SUPPORTS_32BIT_KERNEL
1729	select CPU_SUPPORTS_64BIT_KERNEL
1730	select CPU_SUPPORTS_HUGEPAGES
1731	help
1732	  MIPS Technologies R5000-series processors other than the Nevada.
1733
1734config CPU_R5500
1735	bool "R5500"
1736	depends on SYS_HAS_CPU_R5500
1737	select CPU_SUPPORTS_32BIT_KERNEL
1738	select CPU_SUPPORTS_64BIT_KERNEL
1739	select CPU_SUPPORTS_HUGEPAGES
1740	help
1741	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1742	  instruction set.
1743
1744config CPU_NEVADA
1745	bool "RM52xx"
1746	depends on SYS_HAS_CPU_NEVADA
1747	select CPU_SUPPORTS_32BIT_KERNEL
1748	select CPU_SUPPORTS_64BIT_KERNEL
1749	select CPU_SUPPORTS_HUGEPAGES
1750	help
1751	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1752
1753config CPU_R10000
1754	bool "R10000"
1755	depends on SYS_HAS_CPU_R10000
1756	select CPU_HAS_PREFETCH
1757	select CPU_SUPPORTS_32BIT_KERNEL
1758	select CPU_SUPPORTS_64BIT_KERNEL
1759	select CPU_SUPPORTS_HIGHMEM
1760	select CPU_SUPPORTS_HUGEPAGES
1761	help
1762	  MIPS Technologies R10000-series processors.
1763
1764config CPU_RM7000
1765	bool "RM7000"
1766	depends on SYS_HAS_CPU_RM7000
1767	select CPU_HAS_PREFETCH
1768	select CPU_SUPPORTS_32BIT_KERNEL
1769	select CPU_SUPPORTS_64BIT_KERNEL
1770	select CPU_SUPPORTS_HIGHMEM
1771	select CPU_SUPPORTS_HUGEPAGES
1772
1773config CPU_SB1
1774	bool "SB1"
1775	depends on SYS_HAS_CPU_SB1
1776	select CPU_SUPPORTS_32BIT_KERNEL
1777	select CPU_SUPPORTS_64BIT_KERNEL
1778	select CPU_SUPPORTS_HIGHMEM
1779	select CPU_SUPPORTS_HUGEPAGES
1780	select WEAK_ORDERING
1781
1782config CPU_CAVIUM_OCTEON
1783	bool "Cavium Octeon processor"
1784	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1785	select CPU_HAS_PREFETCH
1786	select CPU_SUPPORTS_64BIT_KERNEL
1787	select WEAK_ORDERING
1788	select CPU_SUPPORTS_HIGHMEM
1789	select CPU_SUPPORTS_HUGEPAGES
1790	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1791	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1792	select MIPS_L1_CACHE_SHIFT_7
1793	select HAVE_KVM
1794	help
1795	  The Cavium Octeon processor is a highly integrated chip containing
1796	  many ethernet hardware widgets for networking tasks. The processor
1797	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1798	  Full details can be found at http://www.caviumnetworks.com.
1799
1800config CPU_BMIPS
1801	bool "Broadcom BMIPS"
1802	depends on SYS_HAS_CPU_BMIPS
1803	select CPU_MIPS32
1804	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1805	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1806	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1807	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1808	select CPU_SUPPORTS_32BIT_KERNEL
1809	select DMA_NONCOHERENT
1810	select IRQ_MIPS_CPU
1811	select SWAP_IO_SPACE
1812	select WEAK_ORDERING
1813	select CPU_SUPPORTS_HIGHMEM
1814	select CPU_HAS_PREFETCH
1815	select CPU_SUPPORTS_CPUFREQ
1816	select MIPS_EXTERNAL_TIMER
1817	help
1818	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1819
1820config CPU_XLR
1821	bool "Netlogic XLR SoC"
1822	depends on SYS_HAS_CPU_XLR
1823	select CPU_SUPPORTS_32BIT_KERNEL
1824	select CPU_SUPPORTS_64BIT_KERNEL
1825	select CPU_SUPPORTS_HIGHMEM
1826	select CPU_SUPPORTS_HUGEPAGES
1827	select WEAK_ORDERING
1828	select WEAK_REORDERING_BEYOND_LLSC
1829	help
1830	  Netlogic Microsystems XLR/XLS processors.
1831
1832config CPU_XLP
1833	bool "Netlogic XLP SoC"
1834	depends on SYS_HAS_CPU_XLP
1835	select CPU_SUPPORTS_32BIT_KERNEL
1836	select CPU_SUPPORTS_64BIT_KERNEL
1837	select CPU_SUPPORTS_HIGHMEM
1838	select WEAK_ORDERING
1839	select WEAK_REORDERING_BEYOND_LLSC
1840	select CPU_HAS_PREFETCH
1841	select CPU_MIPSR2
1842	select CPU_SUPPORTS_HUGEPAGES
1843	select MIPS_ASID_BITS_VARIABLE
1844	help
1845	  Netlogic Microsystems XLP processors.
1846endchoice
1847
1848config CPU_MIPS32_3_5_FEATURES
1849	bool "MIPS32 Release 3.5 Features"
1850	depends on SYS_HAS_CPU_MIPS32_R3_5
1851	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1852		   CPU_P5600
1853	help
1854	  Choose this option to build a kernel for release 2 or later of the
1855	  MIPS32 architecture including features from the 3.5 release such as
1856	  support for Enhanced Virtual Addressing (EVA).
1857
1858config CPU_MIPS32_3_5_EVA
1859	bool "Enhanced Virtual Addressing (EVA)"
1860	depends on CPU_MIPS32_3_5_FEATURES
1861	select EVA
1862	default y
1863	help
1864	  Choose this option if you want to enable the Enhanced Virtual
1865	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1866	  One of its primary benefits is an increase in the maximum size
1867	  of lowmem (up to 3GB). If unsure, say 'N' here.
1868
1869config CPU_MIPS32_R5_FEATURES
1870	bool "MIPS32 Release 5 Features"
1871	depends on SYS_HAS_CPU_MIPS32_R5
1872	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1873	help
1874	  Choose this option to build a kernel for release 2 or later of the
1875	  MIPS32 architecture including features from release 5 such as
1876	  support for Extended Physical Addressing (XPA).
1877
1878config CPU_MIPS32_R5_XPA
1879	bool "Extended Physical Addressing (XPA)"
1880	depends on CPU_MIPS32_R5_FEATURES
1881	depends on !EVA
1882	depends on !PAGE_SIZE_4KB
1883	depends on SYS_SUPPORTS_HIGHMEM
1884	select XPA
1885	select HIGHMEM
1886	select PHYS_ADDR_T_64BIT
1887	default n
1888	help
1889	  Choose this option if you want to enable the Extended Physical
1890	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1891	  benefit is to increase physical addressing equal to or greater
1892	  than 40 bits. Note that this has the side effect of turning on
1893	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1894	  If unsure, say 'N' here.
1895
1896if CPU_LOONGSON2F
1897config CPU_NOP_WORKAROUNDS
1898	bool
1899
1900config CPU_JUMP_WORKAROUNDS
1901	bool
1902
1903config CPU_LOONGSON2F_WORKAROUNDS
1904	bool "Loongson 2F Workarounds"
1905	default y
1906	select CPU_NOP_WORKAROUNDS
1907	select CPU_JUMP_WORKAROUNDS
1908	help
1909	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1910	  require workarounds.  Without workarounds the system may hang
1911	  unexpectedly.  For more information please refer to the gas
1912	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1913
1914	  Loongson 2F03 and later have fixed these issues and no workarounds
1915	  are needed.  The workarounds have no significant side effect on them
1916	  but may decrease the performance of the system so this option should
1917	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1918	  systems.
1919
1920	  If unsure, please say Y.
1921endif # CPU_LOONGSON2F
1922
1923config SYS_SUPPORTS_ZBOOT
1924	bool
1925	select HAVE_KERNEL_GZIP
1926	select HAVE_KERNEL_BZIP2
1927	select HAVE_KERNEL_LZ4
1928	select HAVE_KERNEL_LZMA
1929	select HAVE_KERNEL_LZO
1930	select HAVE_KERNEL_XZ
1931	select HAVE_KERNEL_ZSTD
1932
1933config SYS_SUPPORTS_ZBOOT_UART16550
1934	bool
1935	select SYS_SUPPORTS_ZBOOT
1936
1937config SYS_SUPPORTS_ZBOOT_UART_PROM
1938	bool
1939	select SYS_SUPPORTS_ZBOOT
1940
1941config CPU_LOONGSON2EF
1942	bool
1943	select CPU_SUPPORTS_32BIT_KERNEL
1944	select CPU_SUPPORTS_64BIT_KERNEL
1945	select CPU_SUPPORTS_HIGHMEM
1946	select CPU_SUPPORTS_HUGEPAGES
1947	select ARCH_HAS_PHYS_TO_DMA
1948
1949config CPU_LOONGSON32
1950	bool
1951	select CPU_MIPS32
1952	select CPU_MIPSR2
1953	select CPU_HAS_PREFETCH
1954	select CPU_SUPPORTS_32BIT_KERNEL
1955	select CPU_SUPPORTS_HIGHMEM
1956	select CPU_SUPPORTS_CPUFREQ
1957
1958config CPU_BMIPS32_3300
1959	select SMP_UP if SMP
1960	bool
1961
1962config CPU_BMIPS4350
1963	bool
1964	select SYS_SUPPORTS_SMP
1965	select SYS_SUPPORTS_HOTPLUG_CPU
1966
1967config CPU_BMIPS4380
1968	bool
1969	select MIPS_L1_CACHE_SHIFT_6
1970	select SYS_SUPPORTS_SMP
1971	select SYS_SUPPORTS_HOTPLUG_CPU
1972	select CPU_HAS_RIXI
1973
1974config CPU_BMIPS5000
1975	bool
1976	select MIPS_CPU_SCACHE
1977	select MIPS_L1_CACHE_SHIFT_7
1978	select SYS_SUPPORTS_SMP
1979	select SYS_SUPPORTS_HOTPLUG_CPU
1980	select CPU_HAS_RIXI
1981
1982config SYS_HAS_CPU_LOONGSON64
1983	bool
1984	select CPU_SUPPORTS_CPUFREQ
1985	select CPU_HAS_RIXI
1986
1987config SYS_HAS_CPU_LOONGSON2E
1988	bool
1989
1990config SYS_HAS_CPU_LOONGSON2F
1991	bool
1992	select CPU_SUPPORTS_CPUFREQ
1993	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1994
1995config SYS_HAS_CPU_LOONGSON1B
1996	bool
1997
1998config SYS_HAS_CPU_LOONGSON1C
1999	bool
2000
2001config SYS_HAS_CPU_MIPS32_R1
2002	bool
2003
2004config SYS_HAS_CPU_MIPS32_R2
2005	bool
2006
2007config SYS_HAS_CPU_MIPS32_R3_5
2008	bool
2009
2010config SYS_HAS_CPU_MIPS32_R5
2011	bool
2012	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2013
2014config SYS_HAS_CPU_MIPS32_R6
2015	bool
2016	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2017
2018config SYS_HAS_CPU_MIPS64_R1
2019	bool
2020
2021config SYS_HAS_CPU_MIPS64_R2
2022	bool
2023
2024config SYS_HAS_CPU_MIPS64_R6
2025	bool
2026	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2027
2028config SYS_HAS_CPU_P5600
2029	bool
2030	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2031
2032config SYS_HAS_CPU_R3000
2033	bool
2034
2035config SYS_HAS_CPU_TX39XX
2036	bool
2037
2038config SYS_HAS_CPU_VR41XX
2039	bool
2040
2041config SYS_HAS_CPU_R4300
2042	bool
2043
2044config SYS_HAS_CPU_R4X00
2045	bool
2046
2047config SYS_HAS_CPU_TX49XX
2048	bool
2049
2050config SYS_HAS_CPU_R5000
2051	bool
2052
2053config SYS_HAS_CPU_R5500
2054	bool
2055
2056config SYS_HAS_CPU_NEVADA
2057	bool
2058
2059config SYS_HAS_CPU_R10000
2060	bool
2061	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2062
2063config SYS_HAS_CPU_RM7000
2064	bool
2065
2066config SYS_HAS_CPU_SB1
2067	bool
2068
2069config SYS_HAS_CPU_CAVIUM_OCTEON
2070	bool
2071
2072config SYS_HAS_CPU_BMIPS
2073	bool
2074
2075config SYS_HAS_CPU_BMIPS32_3300
2076	bool
2077	select SYS_HAS_CPU_BMIPS
2078
2079config SYS_HAS_CPU_BMIPS4350
2080	bool
2081	select SYS_HAS_CPU_BMIPS
2082
2083config SYS_HAS_CPU_BMIPS4380
2084	bool
2085	select SYS_HAS_CPU_BMIPS
2086
2087config SYS_HAS_CPU_BMIPS5000
2088	bool
2089	select SYS_HAS_CPU_BMIPS
2090	select ARCH_HAS_SYNC_DMA_FOR_CPU
2091
2092config SYS_HAS_CPU_XLR
2093	bool
2094
2095config SYS_HAS_CPU_XLP
2096	bool
2097
2098#
2099# CPU may reorder R->R, R->W, W->R, W->W
2100# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2101#
2102config WEAK_ORDERING
2103	bool
2104
2105#
2106# CPU may reorder reads and writes beyond LL/SC
2107# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2108#
2109config WEAK_REORDERING_BEYOND_LLSC
2110	bool
2111endmenu
2112
2113#
2114# These two indicate any level of the MIPS32 and MIPS64 architecture
2115#
2116config CPU_MIPS32
2117	bool
2118	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2119		     CPU_MIPS32_R6 || CPU_P5600
2120
2121config CPU_MIPS64
2122	bool
2123	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2124		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
2125
2126#
2127# These indicate the revision of the architecture
2128#
2129config CPU_MIPSR1
2130	bool
2131	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2132
2133config CPU_MIPSR2
2134	bool
2135	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2136	select CPU_HAS_RIXI
2137	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2138	select MIPS_SPRAM
2139
2140config CPU_MIPSR5
2141	bool
2142	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2143	select CPU_HAS_RIXI
2144	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2145	select MIPS_SPRAM
2146
2147config CPU_MIPSR6
2148	bool
2149	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2150	select CPU_HAS_RIXI
2151	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2152	select HAVE_ARCH_BITREVERSE
2153	select MIPS_ASID_BITS_VARIABLE
2154	select MIPS_CRC_SUPPORT
2155	select MIPS_SPRAM
2156
2157config TARGET_ISA_REV
2158	int
2159	default 1 if CPU_MIPSR1
2160	default 2 if CPU_MIPSR2
2161	default 5 if CPU_MIPSR5
2162	default 6 if CPU_MIPSR6
2163	default 0
2164	help
2165	  Reflects the ISA revision being targeted by the kernel build. This
2166	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2167
2168config EVA
2169	bool
2170
2171config XPA
2172	bool
2173
2174config SYS_SUPPORTS_32BIT_KERNEL
2175	bool
2176config SYS_SUPPORTS_64BIT_KERNEL
2177	bool
2178config CPU_SUPPORTS_32BIT_KERNEL
2179	bool
2180config CPU_SUPPORTS_64BIT_KERNEL
2181	bool
2182config CPU_SUPPORTS_CPUFREQ
2183	bool
2184config CPU_SUPPORTS_ADDRWINCFG
2185	bool
2186config CPU_SUPPORTS_HUGEPAGES
2187	bool
2188	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2189config MIPS_PGD_C0_CONTEXT
2190	bool
2191	depends on 64BIT
2192	default y if (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2193
2194#
2195# Set to y for ptrace access to watch registers.
2196#
2197config HARDWARE_WATCHPOINTS
2198	bool
2199	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2200
2201menu "Kernel type"
2202
2203choice
2204	prompt "Kernel code model"
2205	help
2206	  You should only select this option if you have a workload that
2207	  actually benefits from 64-bit processing or if your machine has
2208	  large memory.  You will only be presented a single option in this
2209	  menu if your system does not support both 32-bit and 64-bit kernels.
2210
2211config 32BIT
2212	bool "32-bit kernel"
2213	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2214	select TRAD_SIGNALS
2215	help
2216	  Select this option if you want to build a 32-bit kernel.
2217
2218config 64BIT
2219	bool "64-bit kernel"
2220	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2221	help
2222	  Select this option if you want to build a 64-bit kernel.
2223
2224endchoice
2225
2226config MIPS_VA_BITS_48
2227	bool "48 bits virtual memory"
2228	depends on 64BIT
2229	help
2230	  Support a maximum at least 48 bits of application virtual
2231	  memory.  Default is 40 bits or less, depending on the CPU.
2232	  For page sizes 16k and above, this option results in a small
2233	  memory overhead for page tables.  For 4k page size, a fourth
2234	  level of page tables is added which imposes both a memory
2235	  overhead as well as slower TLB fault handling.
2236
2237	  If unsure, say N.
2238
2239choice
2240	prompt "Kernel page size"
2241	default PAGE_SIZE_4KB
2242
2243config PAGE_SIZE_4KB
2244	bool "4kB"
2245	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2246	help
2247	  This option select the standard 4kB Linux page size.  On some
2248	  R3000-family processors this is the only available page size.  Using
2249	  4kB page size will minimize memory consumption and is therefore
2250	  recommended for low memory systems.
2251
2252config PAGE_SIZE_8KB
2253	bool "8kB"
2254	depends on CPU_CAVIUM_OCTEON
2255	depends on !MIPS_VA_BITS_48
2256	help
2257	  Using 8kB page size will result in higher performance kernel at
2258	  the price of higher memory consumption.  This option is available
2259	  only on cnMIPS processors.  Note that you will need a suitable Linux
2260	  distribution to support this.
2261
2262config PAGE_SIZE_16KB
2263	bool "16kB"
2264	depends on !CPU_R3000 && !CPU_TX39XX
2265	help
2266	  Using 16kB page size will result in higher performance kernel at
2267	  the price of higher memory consumption.  This option is available on
2268	  all non-R3000 family processors.  Note that you will need a suitable
2269	  Linux distribution to support this.
2270
2271config PAGE_SIZE_32KB
2272	bool "32kB"
2273	depends on CPU_CAVIUM_OCTEON
2274	depends on !MIPS_VA_BITS_48
2275	help
2276	  Using 32kB page size will result in higher performance kernel at
2277	  the price of higher memory consumption.  This option is available
2278	  only on cnMIPS cores.  Note that you will need a suitable Linux
2279	  distribution to support this.
2280
2281config PAGE_SIZE_64KB
2282	bool "64kB"
2283	depends on !CPU_R3000 && !CPU_TX39XX
2284	help
2285	  Using 64kB page size will result in higher performance kernel at
2286	  the price of higher memory consumption.  This option is available on
2287	  all non-R3000 family processor.  Not that at the time of this
2288	  writing this option is still high experimental.
2289
2290endchoice
2291
2292config FORCE_MAX_ZONEORDER
2293	int "Maximum zone order"
2294	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2295	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2296	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2297	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2298	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2299	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2300	range 0 64
2301	default "11"
2302	help
2303	  The kernel memory allocator divides physically contiguous memory
2304	  blocks into "zones", where each zone is a power of two number of
2305	  pages.  This option selects the largest power of two that the kernel
2306	  keeps in the memory allocator.  If you need to allocate very large
2307	  blocks of physically contiguous memory, then you may need to
2308	  increase this value.
2309
2310	  This config option is actually maximum order plus one. For example,
2311	  a value of 11 means that the largest free memory block is 2^10 pages.
2312
2313	  The page size is not necessarily 4KB.  Keep this in mind
2314	  when choosing a value for this option.
2315
2316config BOARD_SCACHE
2317	bool
2318
2319config IP22_CPU_SCACHE
2320	bool
2321	select BOARD_SCACHE
2322
2323#
2324# Support for a MIPS32 / MIPS64 style S-caches
2325#
2326config MIPS_CPU_SCACHE
2327	bool
2328	select BOARD_SCACHE
2329
2330config R5000_CPU_SCACHE
2331	bool
2332	select BOARD_SCACHE
2333
2334config RM7000_CPU_SCACHE
2335	bool
2336	select BOARD_SCACHE
2337
2338config SIBYTE_DMA_PAGEOPS
2339	bool "Use DMA to clear/copy pages"
2340	depends on CPU_SB1
2341	help
2342	  Instead of using the CPU to zero and copy pages, use a Data Mover
2343	  channel.  These DMA channels are otherwise unused by the standard
2344	  SiByte Linux port.  Seems to give a small performance benefit.
2345
2346config CPU_HAS_PREFETCH
2347	bool
2348
2349config CPU_GENERIC_DUMP_TLB
2350	bool
2351	default y if !(CPU_R3000 || CPU_TX39XX)
2352
2353config MIPS_FP_SUPPORT
2354	bool "Floating Point support" if EXPERT
2355	default y
2356	help
2357	  Select y to include support for floating point in the kernel
2358	  including initialization of FPU hardware, FP context save & restore
2359	  and emulation of an FPU where necessary. Without this support any
2360	  userland program attempting to use floating point instructions will
2361	  receive a SIGILL.
2362
2363	  If you know that your userland will not attempt to use floating point
2364	  instructions then you can say n here to shrink the kernel a little.
2365
2366	  If unsure, say y.
2367
2368config CPU_R2300_FPU
2369	bool
2370	depends on MIPS_FP_SUPPORT
2371	default y if CPU_R3000 || CPU_TX39XX
2372
2373config CPU_R3K_TLB
2374	bool
2375
2376config CPU_R4K_FPU
2377	bool
2378	depends on MIPS_FP_SUPPORT
2379	default y if !CPU_R2300_FPU
2380
2381config CPU_R4K_CACHE_TLB
2382	bool
2383	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2384
2385config MIPS_MT_SMP
2386	bool "MIPS MT SMP support (1 TC on each available VPE)"
2387	default y
2388	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2389	select CPU_MIPSR2_IRQ_VI
2390	select CPU_MIPSR2_IRQ_EI
2391	select SYNC_R4K
2392	select MIPS_MT
2393	select SMP
2394	select SMP_UP
2395	select SYS_SUPPORTS_SMP
2396	select SYS_SUPPORTS_SCHED_SMT
2397	select MIPS_PERF_SHARED_TC_COUNTERS
2398	help
2399	  This is a kernel model which is known as SMVP. This is supported
2400	  on cores with the MT ASE and uses the available VPEs to implement
2401	  virtual processors which supports SMP. This is equivalent to the
2402	  Intel Hyperthreading feature. For further information go to
2403	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2404
2405config MIPS_MT
2406	bool
2407
2408config SCHED_SMT
2409	bool "SMT (multithreading) scheduler support"
2410	depends on SYS_SUPPORTS_SCHED_SMT
2411	default n
2412	help
2413	  SMT scheduler support improves the CPU scheduler's decision making
2414	  when dealing with MIPS MT enabled cores at a cost of slightly
2415	  increased overhead in some places. If unsure say N here.
2416
2417config SYS_SUPPORTS_SCHED_SMT
2418	bool
2419
2420config SYS_SUPPORTS_MULTITHREADING
2421	bool
2422
2423config MIPS_MT_FPAFF
2424	bool "Dynamic FPU affinity for FP-intensive threads"
2425	default y
2426	depends on MIPS_MT_SMP
2427
2428config MIPSR2_TO_R6_EMULATOR
2429	bool "MIPS R2-to-R6 emulator"
2430	depends on CPU_MIPSR6
2431	depends on MIPS_FP_SUPPORT
2432	default y
2433	help
2434	  Choose this option if you want to run non-R6 MIPS userland code.
2435	  Even if you say 'Y' here, the emulator will still be disabled by
2436	  default. You can enable it using the 'mipsr2emu' kernel option.
2437	  The only reason this is a build-time option is to save ~14K from the
2438	  final kernel image.
2439
2440config SYS_SUPPORTS_VPE_LOADER
2441	bool
2442	depends on SYS_SUPPORTS_MULTITHREADING
2443	help
2444	  Indicates that the platform supports the VPE loader, and provides
2445	  physical_memsize.
2446
2447config MIPS_VPE_LOADER
2448	bool "VPE loader support."
2449	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2450	select CPU_MIPSR2_IRQ_VI
2451	select CPU_MIPSR2_IRQ_EI
2452	select MIPS_MT
2453	help
2454	  Includes a loader for loading an elf relocatable object
2455	  onto another VPE and running it.
2456
2457config MIPS_VPE_LOADER_CMP
2458	bool
2459	default "y"
2460	depends on MIPS_VPE_LOADER && MIPS_CMP
2461
2462config MIPS_VPE_LOADER_MT
2463	bool
2464	default "y"
2465	depends on MIPS_VPE_LOADER && !MIPS_CMP
2466
2467config MIPS_VPE_LOADER_TOM
2468	bool "Load VPE program into memory hidden from linux"
2469	depends on MIPS_VPE_LOADER
2470	default y
2471	help
2472	  The loader can use memory that is present but has been hidden from
2473	  Linux using the kernel command line option "mem=xxMB". It's up to
2474	  you to ensure the amount you put in the option and the space your
2475	  program requires is less or equal to the amount physically present.
2476
2477config MIPS_VPE_APSP_API
2478	bool "Enable support for AP/SP API (RTLX)"
2479	depends on MIPS_VPE_LOADER
2480
2481config MIPS_VPE_APSP_API_CMP
2482	bool
2483	default "y"
2484	depends on MIPS_VPE_APSP_API && MIPS_CMP
2485
2486config MIPS_VPE_APSP_API_MT
2487	bool
2488	default "y"
2489	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2490
2491config MIPS_CMP
2492	bool "MIPS CMP framework support (DEPRECATED)"
2493	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2494	select SMP
2495	select SYNC_R4K
2496	select SYS_SUPPORTS_SMP
2497	select WEAK_ORDERING
2498	default n
2499	help
2500	  Select this if you are using a bootloader which implements the "CMP
2501	  framework" protocol (ie. YAMON) and want your kernel to make use of
2502	  its ability to start secondary CPUs.
2503
2504	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2505	  instead of this.
2506
2507config MIPS_CPS
2508	bool "MIPS Coherent Processing System support"
2509	depends on SYS_SUPPORTS_MIPS_CPS
2510	select MIPS_CM
2511	select MIPS_CPS_PM if HOTPLUG_CPU
2512	select SMP
2513	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2514	select SYS_SUPPORTS_HOTPLUG_CPU
2515	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2516	select SYS_SUPPORTS_SMP
2517	select WEAK_ORDERING
2518	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2519	help
2520	  Select this if you wish to run an SMP kernel across multiple cores
2521	  within a MIPS Coherent Processing System. When this option is
2522	  enabled the kernel will probe for other cores and boot them with
2523	  no external assistance. It is safe to enable this when hardware
2524	  support is unavailable.
2525
2526config MIPS_CPS_PM
2527	depends on MIPS_CPS
2528	bool
2529
2530config MIPS_CM
2531	bool
2532	select MIPS_CPC
2533
2534config MIPS_CPC
2535	bool
2536
2537config SB1_PASS_2_WORKAROUNDS
2538	bool
2539	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2540	default y
2541
2542config SB1_PASS_2_1_WORKAROUNDS
2543	bool
2544	depends on CPU_SB1 && CPU_SB1_PASS_2
2545	default y
2546
2547choice
2548	prompt "SmartMIPS or microMIPS ASE support"
2549
2550config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2551	bool "None"
2552	help
2553	  Select this if you want neither microMIPS nor SmartMIPS support
2554
2555config CPU_HAS_SMARTMIPS
2556	depends on SYS_SUPPORTS_SMARTMIPS
2557	bool "SmartMIPS"
2558	help
2559	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2560	  increased security at both hardware and software level for
2561	  smartcards.  Enabling this option will allow proper use of the
2562	  SmartMIPS instructions by Linux applications.  However a kernel with
2563	  this option will not work on a MIPS core without SmartMIPS core.  If
2564	  you don't know you probably don't have SmartMIPS and should say N
2565	  here.
2566
2567config CPU_MICROMIPS
2568	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2569	bool "microMIPS"
2570	help
2571	  When this option is enabled the kernel will be built using the
2572	  microMIPS ISA
2573
2574endchoice
2575
2576config CPU_HAS_MSA
2577	bool "Support for the MIPS SIMD Architecture"
2578	depends on CPU_SUPPORTS_MSA
2579	depends on MIPS_FP_SUPPORT
2580	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2581	help
2582	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2583	  and a set of SIMD instructions to operate on them. When this option
2584	  is enabled the kernel will support allocating & switching MSA
2585	  vector register contexts. If you know that your kernel will only be
2586	  running on CPUs which do not support MSA or that your userland will
2587	  not be making use of it then you may wish to say N here to reduce
2588	  the size & complexity of your kernel.
2589
2590	  If unsure, say Y.
2591
2592config CPU_HAS_WB
2593	bool
2594
2595config XKS01
2596	bool
2597
2598config CPU_HAS_DIEI
2599	depends on !CPU_DIEI_BROKEN
2600	bool
2601
2602config CPU_DIEI_BROKEN
2603	bool
2604
2605config CPU_HAS_RIXI
2606	bool
2607
2608config CPU_NO_LOAD_STORE_LR
2609	bool
2610	help
2611	  CPU lacks support for unaligned load and store instructions:
2612	  LWL, LWR, SWL, SWR (Load/store word left/right).
2613	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2614	  systems).
2615
2616#
2617# Vectored interrupt mode is an R2 feature
2618#
2619config CPU_MIPSR2_IRQ_VI
2620	bool
2621
2622#
2623# Extended interrupt mode is an R2 feature
2624#
2625config CPU_MIPSR2_IRQ_EI
2626	bool
2627
2628config CPU_HAS_SYNC
2629	bool
2630	depends on !CPU_R3000
2631	default y
2632
2633#
2634# CPU non-features
2635#
2636config CPU_DADDI_WORKAROUNDS
2637	bool
2638
2639config CPU_R4000_WORKAROUNDS
2640	bool
2641	select CPU_R4400_WORKAROUNDS
2642
2643config CPU_R4400_WORKAROUNDS
2644	bool
2645
2646config CPU_R4X00_BUGS64
2647	bool
2648	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2649
2650config MIPS_ASID_SHIFT
2651	int
2652	default 6 if CPU_R3000 || CPU_TX39XX
2653	default 0
2654
2655config MIPS_ASID_BITS
2656	int
2657	default 0 if MIPS_ASID_BITS_VARIABLE
2658	default 6 if CPU_R3000 || CPU_TX39XX
2659	default 8
2660
2661config MIPS_ASID_BITS_VARIABLE
2662	bool
2663
2664config MIPS_CRC_SUPPORT
2665	bool
2666
2667# R4600 erratum.  Due to the lack of errata information the exact
2668# technical details aren't known.  I've experimentally found that disabling
2669# interrupts during indexed I-cache flushes seems to be sufficient to deal
2670# with the issue.
2671config WAR_R4600_V1_INDEX_ICACHEOP
2672	bool
2673
2674# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
2675#
2676#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2677#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2678#      executed if there is no other dcache activity. If the dcache is
2679#      accessed for another instruction immediately preceding when these
2680#      cache instructions are executing, it is possible that the dcache
2681#      tag match outputs used by these cache instructions will be
2682#      incorrect. These cache instructions should be preceded by at least
2683#      four instructions that are not any kind of load or store
2684#      instruction.
2685#
2686#      This is not allowed:    lw
2687#                              nop
2688#                              nop
2689#                              nop
2690#                              cache       Hit_Writeback_Invalidate_D
2691#
2692#      This is allowed:        lw
2693#                              nop
2694#                              nop
2695#                              nop
2696#                              nop
2697#                              cache       Hit_Writeback_Invalidate_D
2698config WAR_R4600_V1_HIT_CACHEOP
2699	bool
2700
2701# Writeback and invalidate the primary cache dcache before DMA.
2702#
2703# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2704# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2705# operate correctly if the internal data cache refill buffer is empty.  These
2706# CACHE instructions should be separated from any potential data cache miss
2707# by a load instruction to an uncached address to empty the response buffer."
2708# (Revision 2.0 device errata from IDT available on https://www.idt.com/
2709# in .pdf format.)
2710config WAR_R4600_V2_HIT_CACHEOP
2711	bool
2712
2713# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2714# the line which this instruction itself exists, the following
2715# operation is not guaranteed."
2716#
2717# Workaround: do two phase flushing for Index_Invalidate_I
2718config WAR_TX49XX_ICACHE_INDEX_INV
2719	bool
2720
2721# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2722# opposes it being called that) where invalid instructions in the same
2723# I-cache line worth of instructions being fetched may case spurious
2724# exceptions.
2725config WAR_ICACHE_REFILLS
2726	bool
2727
2728# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2729# may cause ll / sc and lld / scd sequences to execute non-atomically.
2730config WAR_R10000_LLSC
2731	bool
2732
2733# 34K core erratum: "Problems Executing the TLBR Instruction"
2734config WAR_MIPS34K_MISSED_ITLB
2735	bool
2736
2737#
2738# - Highmem only makes sense for the 32-bit kernel.
2739# - The current highmem code will only work properly on physically indexed
2740#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2741#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2742#   moment we protect the user and offer the highmem option only on machines
2743#   where it's known to be safe.  This will not offer highmem on a few systems
2744#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2745#   indexed CPUs but we're playing safe.
2746# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2747#   know they might have memory configurations that could make use of highmem
2748#   support.
2749#
2750config HIGHMEM
2751	bool "High Memory Support"
2752	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2753	select KMAP_LOCAL
2754
2755config CPU_SUPPORTS_HIGHMEM
2756	bool
2757
2758config SYS_SUPPORTS_HIGHMEM
2759	bool
2760
2761config SYS_SUPPORTS_SMARTMIPS
2762	bool
2763
2764config SYS_SUPPORTS_MICROMIPS
2765	bool
2766
2767config SYS_SUPPORTS_MIPS16
2768	bool
2769	help
2770	  This option must be set if a kernel might be executed on a MIPS16-
2771	  enabled CPU even if MIPS16 is not actually being used.  In other
2772	  words, it makes the kernel MIPS16-tolerant.
2773
2774config CPU_SUPPORTS_MSA
2775	bool
2776
2777config ARCH_FLATMEM_ENABLE
2778	def_bool y
2779	depends on !NUMA && !CPU_LOONGSON2EF
2780
2781config ARCH_SPARSEMEM_ENABLE
2782	bool
2783	select SPARSEMEM_STATIC if !SGI_IP27
2784
2785config NUMA
2786	bool "NUMA Support"
2787	depends on SYS_SUPPORTS_NUMA
2788	select SMP
2789	help
2790	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2791	  Access).  This option improves performance on systems with more
2792	  than two nodes; on two node systems it is generally better to
2793	  leave it disabled; on single node systems leave this option
2794	  disabled.
2795
2796config SYS_SUPPORTS_NUMA
2797	bool
2798
2799config HAVE_SETUP_PER_CPU_AREA
2800	def_bool y
2801	depends on NUMA
2802
2803config NEED_PER_CPU_EMBED_FIRST_CHUNK
2804	def_bool y
2805	depends on NUMA
2806
2807config RELOCATABLE
2808	bool "Relocatable kernel"
2809	depends on SYS_SUPPORTS_RELOCATABLE
2810	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2811		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2812		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2813		   CPU_P5600 || CAVIUM_OCTEON_SOC || \
2814		   CPU_LOONGSON64
2815	help
2816	  This builds a kernel image that retains relocation information
2817	  so it can be loaded someplace besides the default 1MB.
2818	  The relocations make the kernel binary about 15% larger,
2819	  but are discarded at runtime
2820
2821config RELOCATION_TABLE_SIZE
2822	hex "Relocation table size"
2823	depends on RELOCATABLE
2824	range 0x0 0x01000000
2825	default "0x00200000" if CPU_LOONGSON64
2826	default "0x00100000"
2827	help
2828	  A table of relocation data will be appended to the kernel binary
2829	  and parsed at boot to fix up the relocated kernel.
2830
2831	  This option allows the amount of space reserved for the table to be
2832	  adjusted, although the default of 1Mb should be ok in most cases.
2833
2834	  The build will fail and a valid size suggested if this is too small.
2835
2836	  If unsure, leave at the default value.
2837
2838config RANDOMIZE_BASE
2839	bool "Randomize the address of the kernel image"
2840	depends on RELOCATABLE
2841	help
2842	  Randomizes the physical and virtual address at which the
2843	  kernel image is loaded, as a security feature that
2844	  deters exploit attempts relying on knowledge of the location
2845	  of kernel internals.
2846
2847	  Entropy is generated using any coprocessor 0 registers available.
2848
2849	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2850
2851	  If unsure, say N.
2852
2853config RANDOMIZE_BASE_MAX_OFFSET
2854	hex "Maximum kASLR offset" if EXPERT
2855	depends on RANDOMIZE_BASE
2856	range 0x0 0x40000000 if EVA || 64BIT
2857	range 0x0 0x08000000
2858	default "0x01000000"
2859	help
2860	  When kASLR is active, this provides the maximum offset that will
2861	  be applied to the kernel image. It should be set according to the
2862	  amount of physical RAM available in the target system minus
2863	  PHYSICAL_START and must be a power of 2.
2864
2865	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2866	  EVA or 64-bit. The default is 16Mb.
2867
2868config NODES_SHIFT
2869	int
2870	default "6"
2871	depends on NEED_MULTIPLE_NODES
2872
2873config HW_PERF_EVENTS
2874	bool "Enable hardware performance counter support for perf events"
2875	depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2876	default y
2877	help
2878	  Enable hardware performance counter support for perf events. If
2879	  disabled, perf events will use software events only.
2880
2881config DMI
2882	bool "Enable DMI scanning"
2883	depends on MACH_LOONGSON64
2884	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2885	default y
2886	help
2887	  Enabled scanning of DMI to identify machine quirks. Say Y
2888	  here unless you have verified that your setup is not
2889	  affected by entries in the DMI blacklist. Required by PNP
2890	  BIOS code.
2891
2892config SMP
2893	bool "Multi-Processing support"
2894	depends on SYS_SUPPORTS_SMP
2895	help
2896	  This enables support for systems with more than one CPU. If you have
2897	  a system with only one CPU, say N. If you have a system with more
2898	  than one CPU, say Y.
2899
2900	  If you say N here, the kernel will run on uni- and multiprocessor
2901	  machines, but will use only one CPU of a multiprocessor machine. If
2902	  you say Y here, the kernel will run on many, but not all,
2903	  uniprocessor machines. On a uniprocessor machine, the kernel
2904	  will run faster if you say N here.
2905
2906	  People using multiprocessor machines who say Y here should also say
2907	  Y to "Enhanced Real Time Clock Support", below.
2908
2909	  See also the SMP-HOWTO available at
2910	  <https://www.tldp.org/docs.html#howto>.
2911
2912	  If you don't know what to do here, say N.
2913
2914config HOTPLUG_CPU
2915	bool "Support for hot-pluggable CPUs"
2916	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2917	help
2918	  Say Y here to allow turning CPUs off and on. CPUs can be
2919	  controlled through /sys/devices/system/cpu.
2920	  (Note: power management support will enable this option
2921	    automatically on SMP systems. )
2922	  Say N if you want to disable CPU hotplug.
2923
2924config SMP_UP
2925	bool
2926
2927config SYS_SUPPORTS_MIPS_CMP
2928	bool
2929
2930config SYS_SUPPORTS_MIPS_CPS
2931	bool
2932
2933config SYS_SUPPORTS_SMP
2934	bool
2935
2936config NR_CPUS_DEFAULT_4
2937	bool
2938
2939config NR_CPUS_DEFAULT_8
2940	bool
2941
2942config NR_CPUS_DEFAULT_16
2943	bool
2944
2945config NR_CPUS_DEFAULT_32
2946	bool
2947
2948config NR_CPUS_DEFAULT_64
2949	bool
2950
2951config NR_CPUS
2952	int "Maximum number of CPUs (2-256)"
2953	range 2 256
2954	depends on SMP
2955	default "4" if NR_CPUS_DEFAULT_4
2956	default "8" if NR_CPUS_DEFAULT_8
2957	default "16" if NR_CPUS_DEFAULT_16
2958	default "32" if NR_CPUS_DEFAULT_32
2959	default "64" if NR_CPUS_DEFAULT_64
2960	help
2961	  This allows you to specify the maximum number of CPUs which this
2962	  kernel will support.  The maximum supported value is 32 for 32-bit
2963	  kernel and 64 for 64-bit kernels; the minimum value which makes
2964	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2965	  and 2 for all others.
2966
2967	  This is purely to save memory - each supported CPU adds
2968	  approximately eight kilobytes to the kernel image.  For best
2969	  performance should round up your number of processors to the next
2970	  power of two.
2971
2972config MIPS_PERF_SHARED_TC_COUNTERS
2973	bool
2974
2975config MIPS_NR_CPU_NR_MAP_1024
2976	bool
2977
2978config MIPS_NR_CPU_NR_MAP
2979	int
2980	depends on SMP
2981	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2982	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2983
2984#
2985# Timer Interrupt Frequency Configuration
2986#
2987
2988choice
2989	prompt "Timer frequency"
2990	default HZ_250
2991	help
2992	  Allows the configuration of the timer frequency.
2993
2994	config HZ_24
2995		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2996
2997	config HZ_48
2998		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2999
3000	config HZ_100
3001		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
3002
3003	config HZ_128
3004		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
3005
3006	config HZ_250
3007		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
3008
3009	config HZ_256
3010		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
3011
3012	config HZ_1000
3013		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
3014
3015	config HZ_1024
3016		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
3017
3018endchoice
3019
3020config SYS_SUPPORTS_24HZ
3021	bool
3022
3023config SYS_SUPPORTS_48HZ
3024	bool
3025
3026config SYS_SUPPORTS_100HZ
3027	bool
3028
3029config SYS_SUPPORTS_128HZ
3030	bool
3031
3032config SYS_SUPPORTS_250HZ
3033	bool
3034
3035config SYS_SUPPORTS_256HZ
3036	bool
3037
3038config SYS_SUPPORTS_1000HZ
3039	bool
3040
3041config SYS_SUPPORTS_1024HZ
3042	bool
3043
3044config SYS_SUPPORTS_ARBIT_HZ
3045	bool
3046	default y if !SYS_SUPPORTS_24HZ && \
3047		     !SYS_SUPPORTS_48HZ && \
3048		     !SYS_SUPPORTS_100HZ && \
3049		     !SYS_SUPPORTS_128HZ && \
3050		     !SYS_SUPPORTS_250HZ && \
3051		     !SYS_SUPPORTS_256HZ && \
3052		     !SYS_SUPPORTS_1000HZ && \
3053		     !SYS_SUPPORTS_1024HZ
3054
3055config HZ
3056	int
3057	default 24 if HZ_24
3058	default 48 if HZ_48
3059	default 100 if HZ_100
3060	default 128 if HZ_128
3061	default 250 if HZ_250
3062	default 256 if HZ_256
3063	default 1000 if HZ_1000
3064	default 1024 if HZ_1024
3065
3066config SCHED_HRTICK
3067	def_bool HIGH_RES_TIMERS
3068
3069config KEXEC
3070	bool "Kexec system call"
3071	select KEXEC_CORE
3072	help
3073	  kexec is a system call that implements the ability to shutdown your
3074	  current kernel, and to start another kernel.  It is like a reboot
3075	  but it is independent of the system firmware.   And like a reboot
3076	  you can start any kernel with it, not just Linux.
3077
3078	  The name comes from the similarity to the exec system call.
3079
3080	  It is an ongoing process to be certain the hardware in a machine
3081	  is properly shutdown, so do not be surprised if this code does not
3082	  initially work for you.  As of this writing the exact hardware
3083	  interface is strongly in flux, so no good recommendation can be
3084	  made.
3085
3086config CRASH_DUMP
3087	bool "Kernel crash dumps"
3088	help
3089	  Generate crash dump after being started by kexec.
3090	  This should be normally only set in special crash dump kernels
3091	  which are loaded in the main kernel with kexec-tools into
3092	  a specially reserved region and then later executed after
3093	  a crash by kdump/kexec. The crash dump kernel must be compiled
3094	  to a memory address not used by the main kernel or firmware using
3095	  PHYSICAL_START.
3096
3097config PHYSICAL_START
3098	hex "Physical address where the kernel is loaded"
3099	default "0xffffffff84000000"
3100	depends on CRASH_DUMP
3101	help
3102	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3103	  If you plan to use kernel for capturing the crash dump change
3104	  this value to start of the reserved region (the "X" value as
3105	  specified in the "crashkernel=YM@XM" command line boot parameter
3106	  passed to the panic-ed kernel).
3107
3108config MIPS_O32_FP64_SUPPORT
3109	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3110	depends on 32BIT || MIPS32_O32
3111	help
3112	  When this is enabled, the kernel will support use of 64-bit floating
3113	  point registers with binaries using the O32 ABI along with the
3114	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3115	  32-bit MIPS systems this support is at the cost of increasing the
3116	  size and complexity of the compiled FPU emulator. Thus if you are
3117	  running a MIPS32 system and know that none of your userland binaries
3118	  will require 64-bit floating point, you may wish to reduce the size
3119	  of your kernel & potentially improve FP emulation performance by
3120	  saying N here.
3121
3122	  Although binutils currently supports use of this flag the details
3123	  concerning its effect upon the O32 ABI in userland are still being
3124	  worked on. In order to avoid userland becoming dependent upon current
3125	  behaviour before the details have been finalised, this option should
3126	  be considered experimental and only enabled by those working upon
3127	  said details.
3128
3129	  If unsure, say N.
3130
3131config USE_OF
3132	bool
3133	select OF
3134	select OF_EARLY_FLATTREE
3135	select IRQ_DOMAIN
3136
3137config UHI_BOOT
3138	bool
3139
3140config BUILTIN_DTB
3141	bool
3142
3143choice
3144	prompt "Kernel appended dtb support" if USE_OF
3145	default MIPS_NO_APPENDED_DTB
3146
3147	config MIPS_NO_APPENDED_DTB
3148		bool "None"
3149		help
3150		  Do not enable appended dtb support.
3151
3152	config MIPS_ELF_APPENDED_DTB
3153		bool "vmlinux"
3154		help
3155		  With this option, the boot code will look for a device tree binary
3156		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3157		  it is empty and the DTB can be appended using binutils command
3158		  objcopy:
3159
3160		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3161
3162		  This is meant as a backward compatibility convenience for those
3163		  systems with a bootloader that can't be upgraded to accommodate
3164		  the documented boot protocol using a device tree.
3165
3166	config MIPS_RAW_APPENDED_DTB
3167		bool "vmlinux.bin or vmlinuz.bin"
3168		help
3169		  With this option, the boot code will look for a device tree binary
3170		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3171		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3172
3173		  This is meant as a backward compatibility convenience for those
3174		  systems with a bootloader that can't be upgraded to accommodate
3175		  the documented boot protocol using a device tree.
3176
3177		  Beware that there is very little in terms of protection against
3178		  this option being confused by leftover garbage in memory that might
3179		  look like a DTB header after a reboot if no actual DTB is appended
3180		  to vmlinux.bin.  Do not leave this option active in a production kernel
3181		  if you don't intend to always append a DTB.
3182endchoice
3183
3184choice
3185	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3186	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3187					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3188					 !CAVIUM_OCTEON_SOC
3189	default MIPS_CMDLINE_FROM_BOOTLOADER
3190
3191	config MIPS_CMDLINE_FROM_DTB
3192		depends on USE_OF
3193		bool "Dtb kernel arguments if available"
3194
3195	config MIPS_CMDLINE_DTB_EXTEND
3196		depends on USE_OF
3197		bool "Extend dtb kernel arguments with bootloader arguments"
3198
3199	config MIPS_CMDLINE_FROM_BOOTLOADER
3200		bool "Bootloader kernel arguments if available"
3201
3202	config MIPS_CMDLINE_BUILTIN_EXTEND
3203		depends on CMDLINE_BOOL
3204		bool "Extend builtin kernel arguments with bootloader arguments"
3205endchoice
3206
3207endmenu
3208
3209config LOCKDEP_SUPPORT
3210	bool
3211	default y
3212
3213config STACKTRACE_SUPPORT
3214	bool
3215	default y
3216
3217config PGTABLE_LEVELS
3218	int
3219	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3220	default 3 if 64BIT && !PAGE_SIZE_64KB
3221	default 2
3222
3223config MIPS_AUTO_PFN_OFFSET
3224	bool
3225
3226menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3227
3228config PCI_DRIVERS_GENERIC
3229	select PCI_DOMAINS_GENERIC if PCI
3230	bool
3231
3232config PCI_DRIVERS_LEGACY
3233	def_bool !PCI_DRIVERS_GENERIC
3234	select NO_GENERIC_PCI_IOPORT_MAP
3235	select PCI_DOMAINS if PCI
3236
3237#
3238# ISA support is now enabled via select.  Too many systems still have the one
3239# or other ISA chip on the board that users don't know about so don't expect
3240# users to choose the right thing ...
3241#
3242config ISA
3243	bool
3244
3245config TC
3246	bool "TURBOchannel support"
3247	depends on MACH_DECSTATION
3248	help
3249	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3250	  processors.  TURBOchannel programming specifications are available
3251	  at:
3252	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3253	  and:
3254	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3255	  Linux driver support status is documented at:
3256	  <http://www.linux-mips.org/wiki/DECstation>
3257
3258config MMU
3259	bool
3260	default y
3261
3262config ARCH_MMAP_RND_BITS_MIN
3263	default 12 if 64BIT
3264	default 8
3265
3266config ARCH_MMAP_RND_BITS_MAX
3267	default 18 if 64BIT
3268	default 15
3269
3270config ARCH_MMAP_RND_COMPAT_BITS_MIN
3271	default 8
3272
3273config ARCH_MMAP_RND_COMPAT_BITS_MAX
3274	default 15
3275
3276config I8253
3277	bool
3278	select CLKSRC_I8253
3279	select CLKEVT_I8253
3280	select MIPS_EXTERNAL_TIMER
3281
3282config ZONE_DMA
3283	bool
3284
3285config ZONE_DMA32
3286	bool
3287
3288endmenu
3289
3290config TRAD_SIGNALS
3291	bool
3292
3293config MIPS32_COMPAT
3294	bool
3295
3296config COMPAT
3297	bool
3298
3299config SYSVIPC_COMPAT
3300	bool
3301
3302config MIPS32_O32
3303	bool "Kernel support for o32 binaries"
3304	depends on 64BIT
3305	select ARCH_WANT_OLD_COMPAT_IPC
3306	select COMPAT
3307	select MIPS32_COMPAT
3308	select SYSVIPC_COMPAT if SYSVIPC
3309	help
3310	  Select this option if you want to run o32 binaries.  These are pure
3311	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3312	  existing binaries are in this format.
3313
3314	  If unsure, say Y.
3315
3316config MIPS32_N32
3317	bool "Kernel support for n32 binaries"
3318	depends on 64BIT
3319	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3320	select COMPAT
3321	select MIPS32_COMPAT
3322	select SYSVIPC_COMPAT if SYSVIPC
3323	help
3324	  Select this option if you want to run n32 binaries.  These are
3325	  64-bit binaries using 32-bit quantities for addressing and certain
3326	  data that would normally be 64-bit.  They are used in special
3327	  cases.
3328
3329	  If unsure, say N.
3330
3331menu "Power management options"
3332
3333config ARCH_HIBERNATION_POSSIBLE
3334	def_bool y
3335	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3336
3337config ARCH_SUSPEND_POSSIBLE
3338	def_bool y
3339	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3340
3341source "kernel/power/Kconfig"
3342
3343endmenu
3344
3345config MIPS_EXTERNAL_TIMER
3346	bool
3347
3348menu "CPU Power Management"
3349
3350if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3351source "drivers/cpufreq/Kconfig"
3352endif
3353
3354source "drivers/cpuidle/Kconfig"
3355
3356endmenu
3357
3358source "drivers/firmware/Kconfig"
3359
3360source "arch/mips/kvm/Kconfig"
3361
3362source "arch/mips/vdso/Kconfig"
3363