xref: /openbmc/linux/arch/mips/Kconfig (revision ed4bc189)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_32BIT_OFF_T if !64BIT
6	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7	select ARCH_HAS_FORTIFY_SOURCE
8	select ARCH_HAS_KCOV
9	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
10	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
11	select ARCH_HAS_UBSAN_SANITIZE_ALL
12	select ARCH_SUPPORTS_UPROBES
13	select ARCH_USE_BUILTIN_BSWAP
14	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
15	select ARCH_USE_QUEUED_RWLOCKS
16	select ARCH_USE_QUEUED_SPINLOCKS
17	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
18	select ARCH_WANT_IPC_PARSE_VERSION
19	select BUILDTIME_TABLE_SORT
20	select CLONE_BACKWARDS
21	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
22	select CPU_PM if CPU_IDLE
23	select GENERIC_ATOMIC64 if !64BIT
24	select GENERIC_CLOCKEVENTS
25	select GENERIC_CMOS_UPDATE
26	select GENERIC_CPU_AUTOPROBE
27	select GENERIC_GETTIMEOFDAY
28	select GENERIC_IOMAP
29	select GENERIC_IRQ_PROBE
30	select GENERIC_IRQ_SHOW
31	select GENERIC_ISA_DMA if EISA
32	select GENERIC_LIB_ASHLDI3
33	select GENERIC_LIB_ASHRDI3
34	select GENERIC_LIB_CMPDI2
35	select GENERIC_LIB_LSHRDI3
36	select GENERIC_LIB_UCMPDI2
37	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
38	select GENERIC_SMP_IDLE_THREAD
39	select GENERIC_TIME_VSYSCALL
40	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
41	select HANDLE_DOMAIN_IRQ
42	select HAVE_ARCH_COMPILER_H
43	select HAVE_ARCH_JUMP_LABEL
44	select HAVE_ARCH_KGDB
45	select HAVE_ARCH_MMAP_RND_BITS if MMU
46	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
47	select HAVE_ARCH_SECCOMP_FILTER
48	select HAVE_ARCH_TRACEHOOK
49	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
50	select HAVE_ASM_MODVERSIONS
51	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
52	select HAVE_CONTEXT_TRACKING
53	select HAVE_TIF_NOHZ
54	select HAVE_C_RECORDMCOUNT
55	select HAVE_DEBUG_KMEMLEAK
56	select HAVE_DEBUG_STACKOVERFLOW
57	select HAVE_DMA_CONTIGUOUS
58	select HAVE_DYNAMIC_FTRACE
59	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
60	select HAVE_EXIT_THREAD
61	select HAVE_FAST_GUP
62	select HAVE_FTRACE_MCOUNT_RECORD
63	select HAVE_FUNCTION_GRAPH_TRACER
64	select HAVE_FUNCTION_TRACER
65	select HAVE_GCC_PLUGINS
66	select HAVE_GENERIC_VDSO
67	select HAVE_IDE
68	select HAVE_IOREMAP_PROT
69	select HAVE_IRQ_EXIT_ON_IRQ_STACK
70	select HAVE_IRQ_TIME_ACCOUNTING
71	select HAVE_KPROBES
72	select HAVE_KRETPROBES
73	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
74	select HAVE_MOD_ARCH_SPECIFIC
75	select HAVE_NMI
76	select HAVE_OPROFILE
77	select HAVE_PERF_EVENTS
78	select HAVE_REGS_AND_STACK_ACCESS_API
79	select HAVE_RSEQ
80	select HAVE_SPARSE_SYSCALL_NR
81	select HAVE_STACKPROTECTOR
82	select HAVE_SYSCALL_TRACEPOINTS
83	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
84	select IRQ_FORCED_THREADING
85	select ISA if EISA
86	select MODULES_USE_ELF_REL if MODULES
87	select MODULES_USE_ELF_RELA if MODULES && 64BIT
88	select PERF_USE_VMALLOC
89	select RTC_LIB
90	select SYSCTL_EXCEPTION_TRACE
91	select VIRT_TO_BUS
92
93config MIPS_FIXUP_BIGPHYS_ADDR
94	bool
95
96menu "Machine selection"
97
98choice
99	prompt "System type"
100	default MIPS_GENERIC
101
102config MIPS_GENERIC
103	bool "Generic board-agnostic MIPS kernel"
104	select BOOT_RAW
105	select BUILTIN_DTB
106	select CEVT_R4K
107	select CLKSRC_MIPS_GIC
108	select COMMON_CLK
109	select CPU_MIPSR2_IRQ_EI
110	select CPU_MIPSR2_IRQ_VI
111	select CSRC_R4K
112	select DMA_PERDEV_COHERENT
113	select HAVE_PCI
114	select IRQ_MIPS_CPU
115	select MIPS_AUTO_PFN_OFFSET
116	select MIPS_CPU_SCACHE
117	select MIPS_GIC
118	select MIPS_L1_CACHE_SHIFT_7
119	select NO_EXCEPT_FILL
120	select PCI_DRIVERS_GENERIC
121	select SMP_UP if SMP
122	select SWAP_IO_SPACE
123	select SYS_HAS_CPU_MIPS32_R1
124	select SYS_HAS_CPU_MIPS32_R2
125	select SYS_HAS_CPU_MIPS32_R6
126	select SYS_HAS_CPU_MIPS64_R1
127	select SYS_HAS_CPU_MIPS64_R2
128	select SYS_HAS_CPU_MIPS64_R6
129	select SYS_SUPPORTS_32BIT_KERNEL
130	select SYS_SUPPORTS_64BIT_KERNEL
131	select SYS_SUPPORTS_BIG_ENDIAN
132	select SYS_SUPPORTS_HIGHMEM
133	select SYS_SUPPORTS_LITTLE_ENDIAN
134	select SYS_SUPPORTS_MICROMIPS
135	select SYS_SUPPORTS_MIPS16
136	select SYS_SUPPORTS_MIPS_CPS
137	select SYS_SUPPORTS_MULTITHREADING
138	select SYS_SUPPORTS_RELOCATABLE
139	select SYS_SUPPORTS_SMARTMIPS
140	select UHI_BOOT
141	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
142	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
143	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
144	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
145	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
146	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
147	select USE_OF
148	help
149	  Select this to build a kernel which aims to support multiple boards,
150	  generally using a flattened device tree passed from the bootloader
151	  using the boot protocol defined in the UHI (Unified Hosting
152	  Interface) specification.
153
154config MIPS_ALCHEMY
155	bool "Alchemy processor based machines"
156	select PHYS_ADDR_T_64BIT
157	select CEVT_R4K
158	select CSRC_R4K
159	select IRQ_MIPS_CPU
160	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
161	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
162	select SYS_HAS_CPU_MIPS32_R1
163	select SYS_SUPPORTS_32BIT_KERNEL
164	select SYS_SUPPORTS_APM_EMULATION
165	select GPIOLIB
166	select SYS_SUPPORTS_ZBOOT
167	select COMMON_CLK
168
169config AR7
170	bool "Texas Instruments AR7"
171	select BOOT_ELF32
172	select DMA_NONCOHERENT
173	select CEVT_R4K
174	select CSRC_R4K
175	select IRQ_MIPS_CPU
176	select NO_EXCEPT_FILL
177	select SWAP_IO_SPACE
178	select SYS_HAS_CPU_MIPS32_R1
179	select SYS_HAS_EARLY_PRINTK
180	select SYS_SUPPORTS_32BIT_KERNEL
181	select SYS_SUPPORTS_LITTLE_ENDIAN
182	select SYS_SUPPORTS_MIPS16
183	select SYS_SUPPORTS_ZBOOT_UART16550
184	select GPIOLIB
185	select VLYNQ
186	select HAVE_LEGACY_CLK
187	help
188	  Support for the Texas Instruments AR7 System-on-a-Chip
189	  family: TNETD7100, 7200 and 7300.
190
191config ATH25
192	bool "Atheros AR231x/AR531x SoC support"
193	select CEVT_R4K
194	select CSRC_R4K
195	select DMA_NONCOHERENT
196	select IRQ_MIPS_CPU
197	select IRQ_DOMAIN
198	select SYS_HAS_CPU_MIPS32_R1
199	select SYS_SUPPORTS_BIG_ENDIAN
200	select SYS_SUPPORTS_32BIT_KERNEL
201	select SYS_HAS_EARLY_PRINTK
202	help
203	  Support for Atheros AR231x and Atheros AR531x based boards
204
205config ATH79
206	bool "Atheros AR71XX/AR724X/AR913X based boards"
207	select ARCH_HAS_RESET_CONTROLLER
208	select BOOT_RAW
209	select CEVT_R4K
210	select CSRC_R4K
211	select DMA_NONCOHERENT
212	select GPIOLIB
213	select PINCTRL
214	select COMMON_CLK
215	select IRQ_MIPS_CPU
216	select SYS_HAS_CPU_MIPS32_R2
217	select SYS_HAS_EARLY_PRINTK
218	select SYS_SUPPORTS_32BIT_KERNEL
219	select SYS_SUPPORTS_BIG_ENDIAN
220	select SYS_SUPPORTS_MIPS16
221	select SYS_SUPPORTS_ZBOOT_UART_PROM
222	select USE_OF
223	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
224	help
225	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
226
227config BMIPS_GENERIC
228	bool "Broadcom Generic BMIPS kernel"
229	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
230	select ARCH_HAS_PHYS_TO_DMA
231	select BOOT_RAW
232	select NO_EXCEPT_FILL
233	select USE_OF
234	select CEVT_R4K
235	select CSRC_R4K
236	select SYNC_R4K
237	select COMMON_CLK
238	select BCM6345_L1_IRQ
239	select BCM7038_L1_IRQ
240	select BCM7120_L2_IRQ
241	select BRCMSTB_L2_IRQ
242	select IRQ_MIPS_CPU
243	select DMA_NONCOHERENT
244	select SYS_SUPPORTS_32BIT_KERNEL
245	select SYS_SUPPORTS_LITTLE_ENDIAN
246	select SYS_SUPPORTS_BIG_ENDIAN
247	select SYS_SUPPORTS_HIGHMEM
248	select SYS_HAS_CPU_BMIPS32_3300
249	select SYS_HAS_CPU_BMIPS4350
250	select SYS_HAS_CPU_BMIPS4380
251	select SYS_HAS_CPU_BMIPS5000
252	select SWAP_IO_SPACE
253	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
254	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
255	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
256	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
257	select HARDIRQS_SW_RESEND
258	help
259	  Build a generic DT-based kernel image that boots on select
260	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
261	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
262	  must be set appropriately for your board.
263
264config BCM47XX
265	bool "Broadcom BCM47XX based boards"
266	select BOOT_RAW
267	select CEVT_R4K
268	select CSRC_R4K
269	select DMA_NONCOHERENT
270	select HAVE_PCI
271	select IRQ_MIPS_CPU
272	select SYS_HAS_CPU_MIPS32_R1
273	select NO_EXCEPT_FILL
274	select SYS_SUPPORTS_32BIT_KERNEL
275	select SYS_SUPPORTS_LITTLE_ENDIAN
276	select SYS_SUPPORTS_MIPS16
277	select SYS_SUPPORTS_ZBOOT
278	select SYS_HAS_EARLY_PRINTK
279	select USE_GENERIC_EARLY_PRINTK_8250
280	select GPIOLIB
281	select LEDS_GPIO_REGISTER
282	select BCM47XX_NVRAM
283	select BCM47XX_SPROM
284	select BCM47XX_SSB if !BCM47XX_BCMA
285	help
286	  Support for BCM47XX based boards
287
288config BCM63XX
289	bool "Broadcom BCM63XX based boards"
290	select BOOT_RAW
291	select CEVT_R4K
292	select CSRC_R4K
293	select SYNC_R4K
294	select DMA_NONCOHERENT
295	select IRQ_MIPS_CPU
296	select SYS_SUPPORTS_32BIT_KERNEL
297	select SYS_SUPPORTS_BIG_ENDIAN
298	select SYS_HAS_EARLY_PRINTK
299	select SWAP_IO_SPACE
300	select GPIOLIB
301	select MIPS_L1_CACHE_SHIFT_4
302	select CLKDEV_LOOKUP
303	select HAVE_LEGACY_CLK
304	help
305	  Support for BCM63XX based boards
306
307config MIPS_COBALT
308	bool "Cobalt Server"
309	select CEVT_R4K
310	select CSRC_R4K
311	select CEVT_GT641XX
312	select DMA_NONCOHERENT
313	select FORCE_PCI
314	select I8253
315	select I8259
316	select IRQ_MIPS_CPU
317	select IRQ_GT641XX
318	select PCI_GT64XXX_PCI0
319	select SYS_HAS_CPU_NEVADA
320	select SYS_HAS_EARLY_PRINTK
321	select SYS_SUPPORTS_32BIT_KERNEL
322	select SYS_SUPPORTS_64BIT_KERNEL
323	select SYS_SUPPORTS_LITTLE_ENDIAN
324	select USE_GENERIC_EARLY_PRINTK_8250
325
326config MACH_DECSTATION
327	bool "DECstations"
328	select BOOT_ELF32
329	select CEVT_DS1287
330	select CEVT_R4K if CPU_R4X00
331	select CSRC_IOASIC
332	select CSRC_R4K if CPU_R4X00
333	select CPU_DADDI_WORKAROUNDS if 64BIT
334	select CPU_R4000_WORKAROUNDS if 64BIT
335	select CPU_R4400_WORKAROUNDS if 64BIT
336	select DMA_NONCOHERENT
337	select NO_IOPORT_MAP
338	select IRQ_MIPS_CPU
339	select SYS_HAS_CPU_R3000
340	select SYS_HAS_CPU_R4X00
341	select SYS_SUPPORTS_32BIT_KERNEL
342	select SYS_SUPPORTS_64BIT_KERNEL
343	select SYS_SUPPORTS_LITTLE_ENDIAN
344	select SYS_SUPPORTS_128HZ
345	select SYS_SUPPORTS_256HZ
346	select SYS_SUPPORTS_1024HZ
347	select MIPS_L1_CACHE_SHIFT_4
348	help
349	  This enables support for DEC's MIPS based workstations.  For details
350	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
351	  DECstation porting pages on <http://decstation.unix-ag.org/>.
352
353	  If you have one of the following DECstation Models you definitely
354	  want to choose R4xx0 for the CPU Type:
355
356		DECstation 5000/50
357		DECstation 5000/150
358		DECstation 5000/260
359		DECsystem 5900/260
360
361	  otherwise choose R3000.
362
363config MACH_JAZZ
364	bool "Jazz family of machines"
365	select ARC_MEMORY
366	select ARC_PROMLIB
367	select ARCH_MIGHT_HAVE_PC_PARPORT
368	select ARCH_MIGHT_HAVE_PC_SERIO
369	select DMA_OPS
370	select FW_ARC
371	select FW_ARC32
372	select ARCH_MAY_HAVE_PC_FDC
373	select CEVT_R4K
374	select CSRC_R4K
375	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
376	select GENERIC_ISA_DMA
377	select HAVE_PCSPKR_PLATFORM
378	select IRQ_MIPS_CPU
379	select I8253
380	select I8259
381	select ISA
382	select SYS_HAS_CPU_R4X00
383	select SYS_SUPPORTS_32BIT_KERNEL
384	select SYS_SUPPORTS_64BIT_KERNEL
385	select SYS_SUPPORTS_100HZ
386	help
387	  This a family of machines based on the MIPS R4030 chipset which was
388	  used by several vendors to build RISC/os and Windows NT workstations.
389	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
390	  Olivetti M700-10 workstations.
391
392config MACH_INGENIC
393	bool "Ingenic SoC based machines"
394	select SYS_SUPPORTS_32BIT_KERNEL
395	select SYS_SUPPORTS_LITTLE_ENDIAN
396	select SYS_SUPPORTS_ZBOOT_UART16550
397	select CPU_SUPPORTS_HUGEPAGES
398	select DMA_NONCOHERENT
399	select IRQ_MIPS_CPU
400	select PINCTRL
401	select GPIOLIB
402	select COMMON_CLK
403	select GENERIC_IRQ_CHIP
404	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
405	select USE_OF
406
407config LANTIQ
408	bool "Lantiq based platforms"
409	select DMA_NONCOHERENT
410	select IRQ_MIPS_CPU
411	select CEVT_R4K
412	select CSRC_R4K
413	select SYS_HAS_CPU_MIPS32_R1
414	select SYS_HAS_CPU_MIPS32_R2
415	select SYS_SUPPORTS_BIG_ENDIAN
416	select SYS_SUPPORTS_32BIT_KERNEL
417	select SYS_SUPPORTS_MIPS16
418	select SYS_SUPPORTS_MULTITHREADING
419	select SYS_SUPPORTS_VPE_LOADER
420	select SYS_HAS_EARLY_PRINTK
421	select GPIOLIB
422	select SWAP_IO_SPACE
423	select BOOT_RAW
424	select CLKDEV_LOOKUP
425	select HAVE_LEGACY_CLK
426	select USE_OF
427	select PINCTRL
428	select PINCTRL_LANTIQ
429	select ARCH_HAS_RESET_CONTROLLER
430	select RESET_CONTROLLER
431
432config MACH_LOONGSON32
433	bool "Loongson 32-bit family of machines"
434	select SYS_SUPPORTS_ZBOOT
435	help
436	  This enables support for the Loongson-1 family of machines.
437
438	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
439	  the Institute of Computing Technology (ICT), Chinese Academy of
440	  Sciences (CAS).
441
442config MACH_LOONGSON2EF
443	bool "Loongson-2E/F family of machines"
444	select SYS_SUPPORTS_ZBOOT
445	help
446	  This enables the support of early Loongson-2E/F family of machines.
447
448config MACH_LOONGSON64
449	bool "Loongson 64-bit family of machines"
450	select ARCH_SPARSEMEM_ENABLE
451	select ARCH_MIGHT_HAVE_PC_PARPORT
452	select ARCH_MIGHT_HAVE_PC_SERIO
453	select GENERIC_ISA_DMA_SUPPORT_BROKEN
454	select BOOT_ELF32
455	select BOARD_SCACHE
456	select CSRC_R4K
457	select CEVT_R4K
458	select CPU_HAS_WB
459	select FORCE_PCI
460	select ISA
461	select I8259
462	select IRQ_MIPS_CPU
463	select NO_EXCEPT_FILL
464	select NR_CPUS_DEFAULT_64
465	select USE_GENERIC_EARLY_PRINTK_8250
466	select PCI_DRIVERS_GENERIC
467	select SYS_HAS_CPU_LOONGSON64
468	select SYS_HAS_EARLY_PRINTK
469	select SYS_SUPPORTS_SMP
470	select SYS_SUPPORTS_HOTPLUG_CPU
471	select SYS_SUPPORTS_NUMA
472	select SYS_SUPPORTS_64BIT_KERNEL
473	select SYS_SUPPORTS_HIGHMEM
474	select SYS_SUPPORTS_LITTLE_ENDIAN
475	select SYS_SUPPORTS_ZBOOT
476	select ZONE_DMA32
477	select NUMA
478	select COMMON_CLK
479	select USE_OF
480	select BUILTIN_DTB
481	select PCI_HOST_GENERIC
482	help
483	  This enables the support of Loongson-2/3 family of machines.
484
485	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
486	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
487	  and Loongson-2F which will be removed), developed by the Institute
488	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
489
490config MACH_PISTACHIO
491	bool "IMG Pistachio SoC based boards"
492	select BOOT_ELF32
493	select BOOT_RAW
494	select CEVT_R4K
495	select CLKSRC_MIPS_GIC
496	select COMMON_CLK
497	select CSRC_R4K
498	select DMA_NONCOHERENT
499	select GPIOLIB
500	select IRQ_MIPS_CPU
501	select MFD_SYSCON
502	select MIPS_CPU_SCACHE
503	select MIPS_GIC
504	select PINCTRL
505	select REGULATOR
506	select SYS_HAS_CPU_MIPS32_R2
507	select SYS_SUPPORTS_32BIT_KERNEL
508	select SYS_SUPPORTS_LITTLE_ENDIAN
509	select SYS_SUPPORTS_MIPS_CPS
510	select SYS_SUPPORTS_MULTITHREADING
511	select SYS_SUPPORTS_RELOCATABLE
512	select SYS_SUPPORTS_ZBOOT
513	select SYS_HAS_EARLY_PRINTK
514	select USE_GENERIC_EARLY_PRINTK_8250
515	select USE_OF
516	help
517	  This enables support for the IMG Pistachio SoC platform.
518
519config MIPS_MALTA
520	bool "MIPS Malta board"
521	select ARCH_MAY_HAVE_PC_FDC
522	select ARCH_MIGHT_HAVE_PC_PARPORT
523	select ARCH_MIGHT_HAVE_PC_SERIO
524	select BOOT_ELF32
525	select BOOT_RAW
526	select BUILTIN_DTB
527	select CEVT_R4K
528	select CLKSRC_MIPS_GIC
529	select COMMON_CLK
530	select CSRC_R4K
531	select DMA_MAYBE_COHERENT
532	select GENERIC_ISA_DMA
533	select HAVE_PCSPKR_PLATFORM
534	select HAVE_PCI
535	select I8253
536	select I8259
537	select IRQ_MIPS_CPU
538	select MIPS_BONITO64
539	select MIPS_CPU_SCACHE
540	select MIPS_GIC
541	select MIPS_L1_CACHE_SHIFT_6
542	select MIPS_MSC
543	select PCI_GT64XXX_PCI0
544	select SMP_UP if SMP
545	select SWAP_IO_SPACE
546	select SYS_HAS_CPU_MIPS32_R1
547	select SYS_HAS_CPU_MIPS32_R2
548	select SYS_HAS_CPU_MIPS32_R3_5
549	select SYS_HAS_CPU_MIPS32_R5
550	select SYS_HAS_CPU_MIPS32_R6
551	select SYS_HAS_CPU_MIPS64_R1
552	select SYS_HAS_CPU_MIPS64_R2
553	select SYS_HAS_CPU_MIPS64_R6
554	select SYS_HAS_CPU_NEVADA
555	select SYS_HAS_CPU_RM7000
556	select SYS_SUPPORTS_32BIT_KERNEL
557	select SYS_SUPPORTS_64BIT_KERNEL
558	select SYS_SUPPORTS_BIG_ENDIAN
559	select SYS_SUPPORTS_HIGHMEM
560	select SYS_SUPPORTS_LITTLE_ENDIAN
561	select SYS_SUPPORTS_MICROMIPS
562	select SYS_SUPPORTS_MIPS16
563	select SYS_SUPPORTS_MIPS_CMP
564	select SYS_SUPPORTS_MIPS_CPS
565	select SYS_SUPPORTS_MULTITHREADING
566	select SYS_SUPPORTS_RELOCATABLE
567	select SYS_SUPPORTS_SMARTMIPS
568	select SYS_SUPPORTS_VPE_LOADER
569	select SYS_SUPPORTS_ZBOOT
570	select USE_OF
571	select ZONE_DMA32 if 64BIT
572	help
573	  This enables support for the MIPS Technologies Malta evaluation
574	  board.
575
576config MACH_PIC32
577	bool "Microchip PIC32 Family"
578	help
579	  This enables support for the Microchip PIC32 family of platforms.
580
581	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
582	  microcontrollers.
583
584config MACH_VR41XX
585	bool "NEC VR4100 series based machines"
586	select CEVT_R4K
587	select CSRC_R4K
588	select SYS_HAS_CPU_VR41XX
589	select SYS_SUPPORTS_MIPS16
590	select GPIOLIB
591
592config NXP_STB220
593	bool "NXP STB220 board"
594	select SOC_PNX833X
595	help
596	  Support for NXP Semiconductors STB220 Development Board.
597
598config NXP_STB225
599	bool "NXP 225 board"
600	select SOC_PNX833X
601	select SOC_PNX8335
602	help
603	  Support for NXP Semiconductors STB225 Development Board.
604
605config RALINK
606	bool "Ralink based machines"
607	select CEVT_R4K
608	select CSRC_R4K
609	select BOOT_RAW
610	select DMA_NONCOHERENT
611	select IRQ_MIPS_CPU
612	select USE_OF
613	select SYS_HAS_CPU_MIPS32_R1
614	select SYS_HAS_CPU_MIPS32_R2
615	select SYS_SUPPORTS_32BIT_KERNEL
616	select SYS_SUPPORTS_LITTLE_ENDIAN
617	select SYS_SUPPORTS_MIPS16
618	select SYS_HAS_EARLY_PRINTK
619	select CLKDEV_LOOKUP
620	select ARCH_HAS_RESET_CONTROLLER
621	select RESET_CONTROLLER
622
623config SGI_IP22
624	bool "SGI IP22 (Indy/Indigo2)"
625	select ARC_MEMORY
626	select ARC_PROMLIB
627	select FW_ARC
628	select FW_ARC32
629	select ARCH_MIGHT_HAVE_PC_SERIO
630	select BOOT_ELF32
631	select CEVT_R4K
632	select CSRC_R4K
633	select DEFAULT_SGI_PARTITION
634	select DMA_NONCOHERENT
635	select HAVE_EISA
636	select I8253
637	select I8259
638	select IP22_CPU_SCACHE
639	select IRQ_MIPS_CPU
640	select GENERIC_ISA_DMA_SUPPORT_BROKEN
641	select SGI_HAS_I8042
642	select SGI_HAS_INDYDOG
643	select SGI_HAS_HAL2
644	select SGI_HAS_SEEQ
645	select SGI_HAS_WD93
646	select SGI_HAS_ZILOG
647	select SWAP_IO_SPACE
648	select SYS_HAS_CPU_R4X00
649	select SYS_HAS_CPU_R5000
650	select SYS_HAS_EARLY_PRINTK
651	select SYS_SUPPORTS_32BIT_KERNEL
652	select SYS_SUPPORTS_64BIT_KERNEL
653	select SYS_SUPPORTS_BIG_ENDIAN
654	select MIPS_L1_CACHE_SHIFT_7
655	help
656	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
657	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
658	  that runs on these, say Y here.
659
660config SGI_IP27
661	bool "SGI IP27 (Origin200/2000)"
662	select ARCH_HAS_PHYS_TO_DMA
663	select ARCH_SPARSEMEM_ENABLE
664	select FW_ARC
665	select FW_ARC64
666	select ARC_CMDLINE_ONLY
667	select BOOT_ELF64
668	select DEFAULT_SGI_PARTITION
669	select SYS_HAS_EARLY_PRINTK
670	select HAVE_PCI
671	select IRQ_MIPS_CPU
672	select IRQ_DOMAIN_HIERARCHY
673	select NR_CPUS_DEFAULT_64
674	select PCI_DRIVERS_GENERIC
675	select PCI_XTALK_BRIDGE
676	select SYS_HAS_CPU_R10000
677	select SYS_SUPPORTS_64BIT_KERNEL
678	select SYS_SUPPORTS_BIG_ENDIAN
679	select SYS_SUPPORTS_NUMA
680	select SYS_SUPPORTS_SMP
681	select MIPS_L1_CACHE_SHIFT_7
682	select NUMA
683	help
684	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
685	  workstations.  To compile a Linux kernel that runs on these, say Y
686	  here.
687
688config SGI_IP28
689	bool "SGI IP28 (Indigo2 R10k)"
690	select ARC_MEMORY
691	select ARC_PROMLIB
692	select FW_ARC
693	select FW_ARC64
694	select ARCH_MIGHT_HAVE_PC_SERIO
695	select BOOT_ELF64
696	select CEVT_R4K
697	select CSRC_R4K
698	select DEFAULT_SGI_PARTITION
699	select DMA_NONCOHERENT
700	select GENERIC_ISA_DMA_SUPPORT_BROKEN
701	select IRQ_MIPS_CPU
702	select HAVE_EISA
703	select I8253
704	select I8259
705	select SGI_HAS_I8042
706	select SGI_HAS_INDYDOG
707	select SGI_HAS_HAL2
708	select SGI_HAS_SEEQ
709	select SGI_HAS_WD93
710	select SGI_HAS_ZILOG
711	select SWAP_IO_SPACE
712	select SYS_HAS_CPU_R10000
713	select SYS_HAS_EARLY_PRINTK
714	select SYS_SUPPORTS_64BIT_KERNEL
715	select SYS_SUPPORTS_BIG_ENDIAN
716	select MIPS_L1_CACHE_SHIFT_7
717	help
718	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
719	  kernel that runs on these, say Y here.
720
721config SGI_IP30
722	bool "SGI IP30 (Octane/Octane2)"
723	select ARCH_HAS_PHYS_TO_DMA
724	select FW_ARC
725	select FW_ARC64
726	select BOOT_ELF64
727	select CEVT_R4K
728	select CSRC_R4K
729	select SYNC_R4K if SMP
730	select ZONE_DMA32
731	select HAVE_PCI
732	select IRQ_MIPS_CPU
733	select IRQ_DOMAIN_HIERARCHY
734	select NR_CPUS_DEFAULT_2
735	select PCI_DRIVERS_GENERIC
736	select PCI_XTALK_BRIDGE
737	select SYS_HAS_EARLY_PRINTK
738	select SYS_HAS_CPU_R10000
739	select SYS_SUPPORTS_64BIT_KERNEL
740	select SYS_SUPPORTS_BIG_ENDIAN
741	select SYS_SUPPORTS_SMP
742	select MIPS_L1_CACHE_SHIFT_7
743	select ARC_MEMORY
744	help
745	  These are the SGI Octane and Octane2 graphics workstations.  To
746	  compile a Linux kernel that runs on these, say Y here.
747
748config SGI_IP32
749	bool "SGI IP32 (O2)"
750	select ARC_MEMORY
751	select ARC_PROMLIB
752	select ARCH_HAS_PHYS_TO_DMA
753	select FW_ARC
754	select FW_ARC32
755	select BOOT_ELF32
756	select CEVT_R4K
757	select CSRC_R4K
758	select DMA_NONCOHERENT
759	select HAVE_PCI
760	select IRQ_MIPS_CPU
761	select R5000_CPU_SCACHE
762	select RM7000_CPU_SCACHE
763	select SYS_HAS_CPU_R5000
764	select SYS_HAS_CPU_R10000 if BROKEN
765	select SYS_HAS_CPU_RM7000
766	select SYS_HAS_CPU_NEVADA
767	select SYS_SUPPORTS_64BIT_KERNEL
768	select SYS_SUPPORTS_BIG_ENDIAN
769	help
770	  If you want this kernel to run on SGI O2 workstation, say Y here.
771
772config SIBYTE_CRHINE
773	bool "Sibyte BCM91120C-CRhine"
774	select BOOT_ELF32
775	select SIBYTE_BCM1120
776	select SWAP_IO_SPACE
777	select SYS_HAS_CPU_SB1
778	select SYS_SUPPORTS_BIG_ENDIAN
779	select SYS_SUPPORTS_LITTLE_ENDIAN
780
781config SIBYTE_CARMEL
782	bool "Sibyte BCM91120x-Carmel"
783	select BOOT_ELF32
784	select SIBYTE_BCM1120
785	select SWAP_IO_SPACE
786	select SYS_HAS_CPU_SB1
787	select SYS_SUPPORTS_BIG_ENDIAN
788	select SYS_SUPPORTS_LITTLE_ENDIAN
789
790config SIBYTE_CRHONE
791	bool "Sibyte BCM91125C-CRhone"
792	select BOOT_ELF32
793	select SIBYTE_BCM1125
794	select SWAP_IO_SPACE
795	select SYS_HAS_CPU_SB1
796	select SYS_SUPPORTS_BIG_ENDIAN
797	select SYS_SUPPORTS_HIGHMEM
798	select SYS_SUPPORTS_LITTLE_ENDIAN
799
800config SIBYTE_RHONE
801	bool "Sibyte BCM91125E-Rhone"
802	select BOOT_ELF32
803	select SIBYTE_BCM1125H
804	select SWAP_IO_SPACE
805	select SYS_HAS_CPU_SB1
806	select SYS_SUPPORTS_BIG_ENDIAN
807	select SYS_SUPPORTS_LITTLE_ENDIAN
808
809config SIBYTE_SWARM
810	bool "Sibyte BCM91250A-SWARM"
811	select BOOT_ELF32
812	select HAVE_PATA_PLATFORM
813	select SIBYTE_SB1250
814	select SWAP_IO_SPACE
815	select SYS_HAS_CPU_SB1
816	select SYS_SUPPORTS_BIG_ENDIAN
817	select SYS_SUPPORTS_HIGHMEM
818	select SYS_SUPPORTS_LITTLE_ENDIAN
819	select ZONE_DMA32 if 64BIT
820	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
821
822config SIBYTE_LITTLESUR
823	bool "Sibyte BCM91250C2-LittleSur"
824	select BOOT_ELF32
825	select HAVE_PATA_PLATFORM
826	select SIBYTE_SB1250
827	select SWAP_IO_SPACE
828	select SYS_HAS_CPU_SB1
829	select SYS_SUPPORTS_BIG_ENDIAN
830	select SYS_SUPPORTS_HIGHMEM
831	select SYS_SUPPORTS_LITTLE_ENDIAN
832	select ZONE_DMA32 if 64BIT
833
834config SIBYTE_SENTOSA
835	bool "Sibyte BCM91250E-Sentosa"
836	select BOOT_ELF32
837	select SIBYTE_SB1250
838	select SWAP_IO_SPACE
839	select SYS_HAS_CPU_SB1
840	select SYS_SUPPORTS_BIG_ENDIAN
841	select SYS_SUPPORTS_LITTLE_ENDIAN
842	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
843
844config SIBYTE_BIGSUR
845	bool "Sibyte BCM91480B-BigSur"
846	select BOOT_ELF32
847	select NR_CPUS_DEFAULT_4
848	select SIBYTE_BCM1x80
849	select SWAP_IO_SPACE
850	select SYS_HAS_CPU_SB1
851	select SYS_SUPPORTS_BIG_ENDIAN
852	select SYS_SUPPORTS_HIGHMEM
853	select SYS_SUPPORTS_LITTLE_ENDIAN
854	select ZONE_DMA32 if 64BIT
855	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
856
857config SNI_RM
858	bool "SNI RM200/300/400"
859	select ARC_MEMORY
860	select ARC_PROMLIB
861	select FW_ARC if CPU_LITTLE_ENDIAN
862	select FW_ARC32 if CPU_LITTLE_ENDIAN
863	select FW_SNIPROM if CPU_BIG_ENDIAN
864	select ARCH_MAY_HAVE_PC_FDC
865	select ARCH_MIGHT_HAVE_PC_PARPORT
866	select ARCH_MIGHT_HAVE_PC_SERIO
867	select BOOT_ELF32
868	select CEVT_R4K
869	select CSRC_R4K
870	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
871	select DMA_NONCOHERENT
872	select GENERIC_ISA_DMA
873	select HAVE_EISA
874	select HAVE_PCSPKR_PLATFORM
875	select HAVE_PCI
876	select IRQ_MIPS_CPU
877	select I8253
878	select I8259
879	select ISA
880	select MIPS_L1_CACHE_SHIFT_6
881	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
882	select SYS_HAS_CPU_R4X00
883	select SYS_HAS_CPU_R5000
884	select SYS_HAS_CPU_R10000
885	select R5000_CPU_SCACHE
886	select SYS_HAS_EARLY_PRINTK
887	select SYS_SUPPORTS_32BIT_KERNEL
888	select SYS_SUPPORTS_64BIT_KERNEL
889	select SYS_SUPPORTS_BIG_ENDIAN
890	select SYS_SUPPORTS_HIGHMEM
891	select SYS_SUPPORTS_LITTLE_ENDIAN
892	help
893	  The SNI RM200/300/400 are MIPS-based machines manufactured by
894	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
895	  Technology and now in turn merged with Fujitsu.  Say Y here to
896	  support this machine type.
897
898config MACH_TX39XX
899	bool "Toshiba TX39 series based machines"
900
901config MACH_TX49XX
902	bool "Toshiba TX49 series based machines"
903
904config MIKROTIK_RB532
905	bool "Mikrotik RB532 boards"
906	select CEVT_R4K
907	select CSRC_R4K
908	select DMA_NONCOHERENT
909	select HAVE_PCI
910	select IRQ_MIPS_CPU
911	select SYS_HAS_CPU_MIPS32_R1
912	select SYS_SUPPORTS_32BIT_KERNEL
913	select SYS_SUPPORTS_LITTLE_ENDIAN
914	select SWAP_IO_SPACE
915	select BOOT_RAW
916	select GPIOLIB
917	select MIPS_L1_CACHE_SHIFT_4
918	help
919	  Support the Mikrotik(tm) RouterBoard 532 series,
920	  based on the IDT RC32434 SoC.
921
922config CAVIUM_OCTEON_SOC
923	bool "Cavium Networks Octeon SoC based boards"
924	select CEVT_R4K
925	select ARCH_HAS_PHYS_TO_DMA
926	select HAVE_RAPIDIO
927	select PHYS_ADDR_T_64BIT
928	select SYS_SUPPORTS_64BIT_KERNEL
929	select SYS_SUPPORTS_BIG_ENDIAN
930	select EDAC_SUPPORT
931	select EDAC_ATOMIC_SCRUB
932	select SYS_SUPPORTS_LITTLE_ENDIAN
933	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
934	select SYS_HAS_EARLY_PRINTK
935	select SYS_HAS_CPU_CAVIUM_OCTEON
936	select HAVE_PCI
937	select HAVE_PLAT_DELAY
938	select HAVE_PLAT_FW_INIT_CMDLINE
939	select HAVE_PLAT_MEMCPY
940	select ZONE_DMA32
941	select HOLES_IN_ZONE
942	select GPIOLIB
943	select USE_OF
944	select ARCH_SPARSEMEM_ENABLE
945	select SYS_SUPPORTS_SMP
946	select NR_CPUS_DEFAULT_64
947	select MIPS_NR_CPU_NR_MAP_1024
948	select BUILTIN_DTB
949	select MTD_COMPLEX_MAPPINGS
950	select SWIOTLB
951	select SYS_SUPPORTS_RELOCATABLE
952	help
953	  This option supports all of the Octeon reference boards from Cavium
954	  Networks. It builds a kernel that dynamically determines the Octeon
955	  CPU type and supports all known board reference implementations.
956	  Some of the supported boards are:
957		EBT3000
958		EBH3000
959		EBH3100
960		Thunder
961		Kodama
962		Hikari
963	  Say Y here for most Octeon reference boards.
964
965config NLM_XLR_BOARD
966	bool "Netlogic XLR/XLS based systems"
967	select BOOT_ELF32
968	select NLM_COMMON
969	select SYS_HAS_CPU_XLR
970	select SYS_SUPPORTS_SMP
971	select HAVE_PCI
972	select SWAP_IO_SPACE
973	select SYS_SUPPORTS_32BIT_KERNEL
974	select SYS_SUPPORTS_64BIT_KERNEL
975	select PHYS_ADDR_T_64BIT
976	select SYS_SUPPORTS_BIG_ENDIAN
977	select SYS_SUPPORTS_HIGHMEM
978	select NR_CPUS_DEFAULT_32
979	select CEVT_R4K
980	select CSRC_R4K
981	select IRQ_MIPS_CPU
982	select ZONE_DMA32 if 64BIT
983	select SYNC_R4K
984	select SYS_HAS_EARLY_PRINTK
985	select SYS_SUPPORTS_ZBOOT
986	select SYS_SUPPORTS_ZBOOT_UART16550
987	help
988	  Support for systems based on Netlogic XLR and XLS processors.
989	  Say Y here if you have a XLR or XLS based board.
990
991config NLM_XLP_BOARD
992	bool "Netlogic XLP based systems"
993	select BOOT_ELF32
994	select NLM_COMMON
995	select SYS_HAS_CPU_XLP
996	select SYS_SUPPORTS_SMP
997	select HAVE_PCI
998	select SYS_SUPPORTS_32BIT_KERNEL
999	select SYS_SUPPORTS_64BIT_KERNEL
1000	select PHYS_ADDR_T_64BIT
1001	select GPIOLIB
1002	select SYS_SUPPORTS_BIG_ENDIAN
1003	select SYS_SUPPORTS_LITTLE_ENDIAN
1004	select SYS_SUPPORTS_HIGHMEM
1005	select NR_CPUS_DEFAULT_32
1006	select CEVT_R4K
1007	select CSRC_R4K
1008	select IRQ_MIPS_CPU
1009	select ZONE_DMA32 if 64BIT
1010	select SYNC_R4K
1011	select SYS_HAS_EARLY_PRINTK
1012	select USE_OF
1013	select SYS_SUPPORTS_ZBOOT
1014	select SYS_SUPPORTS_ZBOOT_UART16550
1015	help
1016	  This board is based on Netlogic XLP Processor.
1017	  Say Y here if you have a XLP based board.
1018
1019endchoice
1020
1021source "arch/mips/alchemy/Kconfig"
1022source "arch/mips/ath25/Kconfig"
1023source "arch/mips/ath79/Kconfig"
1024source "arch/mips/bcm47xx/Kconfig"
1025source "arch/mips/bcm63xx/Kconfig"
1026source "arch/mips/bmips/Kconfig"
1027source "arch/mips/generic/Kconfig"
1028source "arch/mips/jazz/Kconfig"
1029source "arch/mips/jz4740/Kconfig"
1030source "arch/mips/lantiq/Kconfig"
1031source "arch/mips/pic32/Kconfig"
1032source "arch/mips/pistachio/Kconfig"
1033source "arch/mips/ralink/Kconfig"
1034source "arch/mips/sgi-ip27/Kconfig"
1035source "arch/mips/sibyte/Kconfig"
1036source "arch/mips/txx9/Kconfig"
1037source "arch/mips/vr41xx/Kconfig"
1038source "arch/mips/cavium-octeon/Kconfig"
1039source "arch/mips/loongson2ef/Kconfig"
1040source "arch/mips/loongson32/Kconfig"
1041source "arch/mips/loongson64/Kconfig"
1042source "arch/mips/netlogic/Kconfig"
1043
1044endmenu
1045
1046config GENERIC_HWEIGHT
1047	bool
1048	default y
1049
1050config GENERIC_CALIBRATE_DELAY
1051	bool
1052	default y
1053
1054config SCHED_OMIT_FRAME_POINTER
1055	bool
1056	default y
1057
1058#
1059# Select some configuration options automatically based on user selections.
1060#
1061config FW_ARC
1062	bool
1063
1064config ARCH_MAY_HAVE_PC_FDC
1065	bool
1066
1067config BOOT_RAW
1068	bool
1069
1070config CEVT_BCM1480
1071	bool
1072
1073config CEVT_DS1287
1074	bool
1075
1076config CEVT_GT641XX
1077	bool
1078
1079config CEVT_R4K
1080	bool
1081
1082config CEVT_SB1250
1083	bool
1084
1085config CEVT_TXX9
1086	bool
1087
1088config CSRC_BCM1480
1089	bool
1090
1091config CSRC_IOASIC
1092	bool
1093
1094config CSRC_R4K
1095	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1096	bool
1097
1098config CSRC_SB1250
1099	bool
1100
1101config MIPS_CLOCK_VSYSCALL
1102	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1103
1104config GPIO_TXX9
1105	select GPIOLIB
1106	bool
1107
1108config FW_CFE
1109	bool
1110
1111config ARCH_SUPPORTS_UPROBES
1112	bool
1113
1114config DMA_MAYBE_COHERENT
1115	select ARCH_HAS_DMA_COHERENCE_H
1116	select DMA_NONCOHERENT
1117	bool
1118
1119config DMA_PERDEV_COHERENT
1120	bool
1121	select ARCH_HAS_SETUP_DMA_OPS
1122	select DMA_NONCOHERENT
1123
1124config DMA_NONCOHERENT
1125	bool
1126	#
1127	# MIPS allows mixing "slightly different" Cacheability and Coherency
1128	# Attribute bits.  It is believed that the uncached access through
1129	# KSEG1 and the implementation specific "uncached accelerated" used
1130	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1131	# significant advantages.
1132	#
1133	select ARCH_HAS_DMA_WRITE_COMBINE
1134	select ARCH_HAS_DMA_PREP_COHERENT
1135	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1136	select ARCH_HAS_DMA_SET_UNCACHED
1137	select DMA_NONCOHERENT_MMAP
1138	select DMA_NONCOHERENT_CACHE_SYNC
1139	select NEED_DMA_MAP_STATE
1140
1141config SYS_HAS_EARLY_PRINTK
1142	bool
1143
1144config SYS_SUPPORTS_HOTPLUG_CPU
1145	bool
1146
1147config MIPS_BONITO64
1148	bool
1149
1150config MIPS_MSC
1151	bool
1152
1153config SYNC_R4K
1154	bool
1155
1156config NO_IOPORT_MAP
1157	def_bool n
1158
1159config GENERIC_CSUM
1160	def_bool CPU_NO_LOAD_STORE_LR
1161
1162config GENERIC_ISA_DMA
1163	bool
1164	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1165	select ISA_DMA_API
1166
1167config GENERIC_ISA_DMA_SUPPORT_BROKEN
1168	bool
1169	select GENERIC_ISA_DMA
1170
1171config HAVE_PLAT_DELAY
1172	bool
1173
1174config HAVE_PLAT_FW_INIT_CMDLINE
1175	bool
1176
1177config HAVE_PLAT_MEMCPY
1178	bool
1179
1180config ISA_DMA_API
1181	bool
1182
1183config HOLES_IN_ZONE
1184	bool
1185
1186config SYS_SUPPORTS_RELOCATABLE
1187	bool
1188	help
1189	  Selected if the platform supports relocating the kernel.
1190	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1191	  to allow access to command line and entropy sources.
1192
1193config MIPS_CBPF_JIT
1194	def_bool y
1195	depends on BPF_JIT && HAVE_CBPF_JIT
1196
1197config MIPS_EBPF_JIT
1198	def_bool y
1199	depends on BPF_JIT && HAVE_EBPF_JIT
1200
1201
1202#
1203# Endianness selection.  Sufficiently obscure so many users don't know what to
1204# answer,so we try hard to limit the available choices.  Also the use of a
1205# choice statement should be more obvious to the user.
1206#
1207choice
1208	prompt "Endianness selection"
1209	help
1210	  Some MIPS machines can be configured for either little or big endian
1211	  byte order. These modes require different kernels and a different
1212	  Linux distribution.  In general there is one preferred byteorder for a
1213	  particular system but some systems are just as commonly used in the
1214	  one or the other endianness.
1215
1216config CPU_BIG_ENDIAN
1217	bool "Big endian"
1218	depends on SYS_SUPPORTS_BIG_ENDIAN
1219
1220config CPU_LITTLE_ENDIAN
1221	bool "Little endian"
1222	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1223
1224endchoice
1225
1226config EXPORT_UASM
1227	bool
1228
1229config SYS_SUPPORTS_APM_EMULATION
1230	bool
1231
1232config SYS_SUPPORTS_BIG_ENDIAN
1233	bool
1234
1235config SYS_SUPPORTS_LITTLE_ENDIAN
1236	bool
1237
1238config SYS_SUPPORTS_HUGETLBFS
1239	bool
1240	depends on CPU_SUPPORTS_HUGEPAGES
1241	default y
1242
1243config MIPS_HUGE_TLB_SUPPORT
1244	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1245
1246config IRQ_CPU_RM7K
1247	bool
1248
1249config IRQ_MSP_SLP
1250	bool
1251
1252config IRQ_MSP_CIC
1253	bool
1254
1255config IRQ_TXX9
1256	bool
1257
1258config IRQ_GT641XX
1259	bool
1260
1261config PCI_GT64XXX_PCI0
1262	bool
1263
1264config PCI_XTALK_BRIDGE
1265	bool
1266
1267config NO_EXCEPT_FILL
1268	bool
1269
1270config SOC_PNX833X
1271	bool
1272	select CEVT_R4K
1273	select CSRC_R4K
1274	select IRQ_MIPS_CPU
1275	select DMA_NONCOHERENT
1276	select SYS_HAS_CPU_MIPS32_R2
1277	select SYS_SUPPORTS_32BIT_KERNEL
1278	select SYS_SUPPORTS_LITTLE_ENDIAN
1279	select SYS_SUPPORTS_BIG_ENDIAN
1280	select SYS_SUPPORTS_MIPS16
1281	select CPU_MIPSR2_IRQ_VI
1282
1283config SOC_PNX8335
1284	bool
1285	select SOC_PNX833X
1286
1287config MIPS_SPRAM
1288	bool
1289
1290config SWAP_IO_SPACE
1291	bool
1292
1293config SGI_HAS_INDYDOG
1294	bool
1295
1296config SGI_HAS_HAL2
1297	bool
1298
1299config SGI_HAS_SEEQ
1300	bool
1301
1302config SGI_HAS_WD93
1303	bool
1304
1305config SGI_HAS_ZILOG
1306	bool
1307
1308config SGI_HAS_I8042
1309	bool
1310
1311config DEFAULT_SGI_PARTITION
1312	bool
1313
1314config FW_ARC32
1315	bool
1316
1317config FW_SNIPROM
1318	bool
1319
1320config BOOT_ELF32
1321	bool
1322
1323config MIPS_L1_CACHE_SHIFT_4
1324	bool
1325
1326config MIPS_L1_CACHE_SHIFT_5
1327	bool
1328
1329config MIPS_L1_CACHE_SHIFT_6
1330	bool
1331
1332config MIPS_L1_CACHE_SHIFT_7
1333	bool
1334
1335config MIPS_L1_CACHE_SHIFT
1336	int
1337	default "7" if MIPS_L1_CACHE_SHIFT_7
1338	default "6" if MIPS_L1_CACHE_SHIFT_6
1339	default "5" if MIPS_L1_CACHE_SHIFT_5
1340	default "4" if MIPS_L1_CACHE_SHIFT_4
1341	default "5"
1342
1343config ARC_CMDLINE_ONLY
1344	bool
1345
1346config ARC_CONSOLE
1347	bool "ARC console support"
1348	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1349
1350config ARC_MEMORY
1351	bool
1352
1353config ARC_PROMLIB
1354	bool
1355
1356config FW_ARC64
1357	bool
1358
1359config BOOT_ELF64
1360	bool
1361
1362menu "CPU selection"
1363
1364choice
1365	prompt "CPU type"
1366	default CPU_R4X00
1367
1368config CPU_LOONGSON64
1369	bool "Loongson 64-bit CPU"
1370	depends on SYS_HAS_CPU_LOONGSON64
1371	select ARCH_HAS_PHYS_TO_DMA
1372	select CPU_MIPSR2
1373	select CPU_HAS_PREFETCH
1374	select CPU_SUPPORTS_64BIT_KERNEL
1375	select CPU_SUPPORTS_HIGHMEM
1376	select CPU_SUPPORTS_HUGEPAGES
1377	select CPU_SUPPORTS_MSA
1378	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1379	select CPU_MIPSR2_IRQ_VI
1380	select WEAK_ORDERING
1381	select WEAK_REORDERING_BEYOND_LLSC
1382	select MIPS_ASID_BITS_VARIABLE
1383	select MIPS_PGD_C0_CONTEXT
1384	select MIPS_L1_CACHE_SHIFT_6
1385	select GPIOLIB
1386	select SWIOTLB
1387	select HAVE_KVM
1388	help
1389		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1390		cores implements the MIPS64R2 instruction set with many extensions,
1391		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1392		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1393		Loongson-2E/2F is not covered here and will be removed in future.
1394
1395config LOONGSON3_ENHANCEMENT
1396	bool "New Loongson-3 CPU Enhancements"
1397	default n
1398	depends on CPU_LOONGSON64
1399	help
1400	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1401	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1402	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1403	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1404	  Fast TLB refill support, etc.
1405
1406	  This option enable those enhancements which are not probed at run
1407	  time. If you want a generic kernel to run on all Loongson 3 machines,
1408	  please say 'N' here. If you want a high-performance kernel to run on
1409	  new Loongson-3 machines only, please say 'Y' here.
1410
1411config CPU_LOONGSON3_WORKAROUNDS
1412	bool "Old Loongson-3 LLSC Workarounds"
1413	default y if SMP
1414	depends on CPU_LOONGSON64
1415	help
1416	  Loongson-3 processors have the llsc issues which require workarounds.
1417	  Without workarounds the system may hang unexpectedly.
1418
1419	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1420	  The workarounds have no significant side effect on them but may
1421	  decrease the performance of the system so this option should be
1422	  disabled unless the kernel is intended to be run on old systems.
1423
1424	  If unsure, please say Y.
1425
1426config CPU_LOONGSON3_CPUCFG_EMULATION
1427	bool "Emulate the CPUCFG instruction on older Loongson cores"
1428	default y
1429	depends on CPU_LOONGSON64
1430	help
1431	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1432	  userland to query CPU capabilities, much like CPUID on x86. This
1433	  option provides emulation of the instruction on older Loongson
1434	  cores, back to Loongson-3A1000.
1435
1436	  If unsure, please say Y.
1437
1438config CPU_LOONGSON2E
1439	bool "Loongson 2E"
1440	depends on SYS_HAS_CPU_LOONGSON2E
1441	select CPU_LOONGSON2EF
1442	help
1443	  The Loongson 2E processor implements the MIPS III instruction set
1444	  with many extensions.
1445
1446	  It has an internal FPGA northbridge, which is compatible to
1447	  bonito64.
1448
1449config CPU_LOONGSON2F
1450	bool "Loongson 2F"
1451	depends on SYS_HAS_CPU_LOONGSON2F
1452	select CPU_LOONGSON2EF
1453	select GPIOLIB
1454	help
1455	  The Loongson 2F processor implements the MIPS III instruction set
1456	  with many extensions.
1457
1458	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1459	  have a similar programming interface with FPGA northbridge used in
1460	  Loongson2E.
1461
1462config CPU_LOONGSON1B
1463	bool "Loongson 1B"
1464	depends on SYS_HAS_CPU_LOONGSON1B
1465	select CPU_LOONGSON32
1466	select LEDS_GPIO_REGISTER
1467	help
1468	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1469	  Release 1 instruction set and part of the MIPS32 Release 2
1470	  instruction set.
1471
1472config CPU_LOONGSON1C
1473	bool "Loongson 1C"
1474	depends on SYS_HAS_CPU_LOONGSON1C
1475	select CPU_LOONGSON32
1476	select LEDS_GPIO_REGISTER
1477	help
1478	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1479	  Release 1 instruction set and part of the MIPS32 Release 2
1480	  instruction set.
1481
1482config CPU_MIPS32_R1
1483	bool "MIPS32 Release 1"
1484	depends on SYS_HAS_CPU_MIPS32_R1
1485	select CPU_HAS_PREFETCH
1486	select CPU_SUPPORTS_32BIT_KERNEL
1487	select CPU_SUPPORTS_HIGHMEM
1488	help
1489	  Choose this option to build a kernel for release 1 or later of the
1490	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1491	  MIPS processor are based on a MIPS32 processor.  If you know the
1492	  specific type of processor in your system, choose those that one
1493	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1494	  Release 2 of the MIPS32 architecture is available since several
1495	  years so chances are you even have a MIPS32 Release 2 processor
1496	  in which case you should choose CPU_MIPS32_R2 instead for better
1497	  performance.
1498
1499config CPU_MIPS32_R2
1500	bool "MIPS32 Release 2"
1501	depends on SYS_HAS_CPU_MIPS32_R2
1502	select CPU_HAS_PREFETCH
1503	select CPU_SUPPORTS_32BIT_KERNEL
1504	select CPU_SUPPORTS_HIGHMEM
1505	select CPU_SUPPORTS_MSA
1506	select HAVE_KVM
1507	help
1508	  Choose this option to build a kernel for release 2 or later of the
1509	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1510	  MIPS processor are based on a MIPS32 processor.  If you know the
1511	  specific type of processor in your system, choose those that one
1512	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1513
1514config CPU_MIPS32_R5
1515	bool "MIPS32 Release 5"
1516	depends on SYS_HAS_CPU_MIPS32_R5
1517	select CPU_HAS_PREFETCH
1518	select CPU_SUPPORTS_32BIT_KERNEL
1519	select CPU_SUPPORTS_HIGHMEM
1520	select CPU_SUPPORTS_MSA
1521	select HAVE_KVM
1522	select MIPS_O32_FP64_SUPPORT
1523	help
1524	  Choose this option to build a kernel for release 5 or later of the
1525	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1526	  family, are based on a MIPS32r5 processor. If you own an older
1527	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1528
1529config CPU_MIPS32_R6
1530	bool "MIPS32 Release 6"
1531	depends on SYS_HAS_CPU_MIPS32_R6
1532	select CPU_HAS_PREFETCH
1533	select CPU_NO_LOAD_STORE_LR
1534	select CPU_SUPPORTS_32BIT_KERNEL
1535	select CPU_SUPPORTS_HIGHMEM
1536	select CPU_SUPPORTS_MSA
1537	select HAVE_KVM
1538	select MIPS_O32_FP64_SUPPORT
1539	help
1540	  Choose this option to build a kernel for release 6 or later of the
1541	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1542	  family, are based on a MIPS32r6 processor. If you own an older
1543	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1544
1545config CPU_MIPS64_R1
1546	bool "MIPS64 Release 1"
1547	depends on SYS_HAS_CPU_MIPS64_R1
1548	select CPU_HAS_PREFETCH
1549	select CPU_SUPPORTS_32BIT_KERNEL
1550	select CPU_SUPPORTS_64BIT_KERNEL
1551	select CPU_SUPPORTS_HIGHMEM
1552	select CPU_SUPPORTS_HUGEPAGES
1553	help
1554	  Choose this option to build a kernel for release 1 or later of the
1555	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1556	  MIPS processor are based on a MIPS64 processor.  If you know the
1557	  specific type of processor in your system, choose those that one
1558	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1559	  Release 2 of the MIPS64 architecture is available since several
1560	  years so chances are you even have a MIPS64 Release 2 processor
1561	  in which case you should choose CPU_MIPS64_R2 instead for better
1562	  performance.
1563
1564config CPU_MIPS64_R2
1565	bool "MIPS64 Release 2"
1566	depends on SYS_HAS_CPU_MIPS64_R2
1567	select CPU_HAS_PREFETCH
1568	select CPU_SUPPORTS_32BIT_KERNEL
1569	select CPU_SUPPORTS_64BIT_KERNEL
1570	select CPU_SUPPORTS_HIGHMEM
1571	select CPU_SUPPORTS_HUGEPAGES
1572	select CPU_SUPPORTS_MSA
1573	select HAVE_KVM
1574	help
1575	  Choose this option to build a kernel for release 2 or later of the
1576	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1577	  MIPS processor are based on a MIPS64 processor.  If you know the
1578	  specific type of processor in your system, choose those that one
1579	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1580
1581config CPU_MIPS64_R5
1582	bool "MIPS64 Release 5"
1583	depends on SYS_HAS_CPU_MIPS64_R5
1584	select CPU_HAS_PREFETCH
1585	select CPU_SUPPORTS_32BIT_KERNEL
1586	select CPU_SUPPORTS_64BIT_KERNEL
1587	select CPU_SUPPORTS_HIGHMEM
1588	select CPU_SUPPORTS_HUGEPAGES
1589	select CPU_SUPPORTS_MSA
1590	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1591	select HAVE_KVM
1592	help
1593	  Choose this option to build a kernel for release 5 or later of the
1594	  MIPS64 architecture.  This is a intermediate MIPS architecture
1595	  release partly implementing release 6 features. Though there is no
1596	  any hardware known to be based on this release.
1597
1598config CPU_MIPS64_R6
1599	bool "MIPS64 Release 6"
1600	depends on SYS_HAS_CPU_MIPS64_R6
1601	select CPU_HAS_PREFETCH
1602	select CPU_NO_LOAD_STORE_LR
1603	select CPU_SUPPORTS_32BIT_KERNEL
1604	select CPU_SUPPORTS_64BIT_KERNEL
1605	select CPU_SUPPORTS_HIGHMEM
1606	select CPU_SUPPORTS_HUGEPAGES
1607	select CPU_SUPPORTS_MSA
1608	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1609	select HAVE_KVM
1610	help
1611	  Choose this option to build a kernel for release 6 or later of the
1612	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1613	  family, are based on a MIPS64r6 processor. If you own an older
1614	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1615
1616config CPU_P5600
1617	bool "MIPS Warrior P5600"
1618	depends on SYS_HAS_CPU_P5600
1619	select CPU_HAS_PREFETCH
1620	select CPU_SUPPORTS_32BIT_KERNEL
1621	select CPU_SUPPORTS_HIGHMEM
1622	select CPU_SUPPORTS_MSA
1623	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1624	select CPU_SUPPORTS_CPUFREQ
1625	select CPU_MIPSR2_IRQ_VI
1626	select CPU_MIPSR2_IRQ_EI
1627	select HAVE_KVM
1628	select MIPS_O32_FP64_SUPPORT
1629	help
1630	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1631	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1632	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1633	  level features like up to six P5600 calculation cores, CM2 with L2
1634	  cache, IOCU/IOMMU (though might be unused depending on the system-
1635	  specific IP core configuration), GIC, CPC, virtualisation module,
1636	  eJTAG and PDtrace.
1637
1638config CPU_R3000
1639	bool "R3000"
1640	depends on SYS_HAS_CPU_R3000
1641	select CPU_HAS_WB
1642	select CPU_R3K_TLB
1643	select CPU_SUPPORTS_32BIT_KERNEL
1644	select CPU_SUPPORTS_HIGHMEM
1645	help
1646	  Please make sure to pick the right CPU type. Linux/MIPS is not
1647	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1648	  *not* work on R4000 machines and vice versa.  However, since most
1649	  of the supported machines have an R4000 (or similar) CPU, R4x00
1650	  might be a safe bet.  If the resulting kernel does not work,
1651	  try to recompile with R3000.
1652
1653config CPU_TX39XX
1654	bool "R39XX"
1655	depends on SYS_HAS_CPU_TX39XX
1656	select CPU_SUPPORTS_32BIT_KERNEL
1657	select CPU_R3K_TLB
1658
1659config CPU_VR41XX
1660	bool "R41xx"
1661	depends on SYS_HAS_CPU_VR41XX
1662	select CPU_SUPPORTS_32BIT_KERNEL
1663	select CPU_SUPPORTS_64BIT_KERNEL
1664	help
1665	  The options selects support for the NEC VR4100 series of processors.
1666	  Only choose this option if you have one of these processors as a
1667	  kernel built with this option will not run on any other type of
1668	  processor or vice versa.
1669
1670config CPU_R4X00
1671	bool "R4x00"
1672	depends on SYS_HAS_CPU_R4X00
1673	select CPU_SUPPORTS_32BIT_KERNEL
1674	select CPU_SUPPORTS_64BIT_KERNEL
1675	select CPU_SUPPORTS_HUGEPAGES
1676	help
1677	  MIPS Technologies R4000-series processors other than 4300, including
1678	  the R4000, R4400, R4600, and 4700.
1679
1680config CPU_TX49XX
1681	bool "R49XX"
1682	depends on SYS_HAS_CPU_TX49XX
1683	select CPU_HAS_PREFETCH
1684	select CPU_SUPPORTS_32BIT_KERNEL
1685	select CPU_SUPPORTS_64BIT_KERNEL
1686	select CPU_SUPPORTS_HUGEPAGES
1687
1688config CPU_R5000
1689	bool "R5000"
1690	depends on SYS_HAS_CPU_R5000
1691	select CPU_SUPPORTS_32BIT_KERNEL
1692	select CPU_SUPPORTS_64BIT_KERNEL
1693	select CPU_SUPPORTS_HUGEPAGES
1694	help
1695	  MIPS Technologies R5000-series processors other than the Nevada.
1696
1697config CPU_R5500
1698	bool "R5500"
1699	depends on SYS_HAS_CPU_R5500
1700	select CPU_SUPPORTS_32BIT_KERNEL
1701	select CPU_SUPPORTS_64BIT_KERNEL
1702	select CPU_SUPPORTS_HUGEPAGES
1703	help
1704	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1705	  instruction set.
1706
1707config CPU_NEVADA
1708	bool "RM52xx"
1709	depends on SYS_HAS_CPU_NEVADA
1710	select CPU_SUPPORTS_32BIT_KERNEL
1711	select CPU_SUPPORTS_64BIT_KERNEL
1712	select CPU_SUPPORTS_HUGEPAGES
1713	help
1714	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1715
1716config CPU_R10000
1717	bool "R10000"
1718	depends on SYS_HAS_CPU_R10000
1719	select CPU_HAS_PREFETCH
1720	select CPU_SUPPORTS_32BIT_KERNEL
1721	select CPU_SUPPORTS_64BIT_KERNEL
1722	select CPU_SUPPORTS_HIGHMEM
1723	select CPU_SUPPORTS_HUGEPAGES
1724	help
1725	  MIPS Technologies R10000-series processors.
1726
1727config CPU_RM7000
1728	bool "RM7000"
1729	depends on SYS_HAS_CPU_RM7000
1730	select CPU_HAS_PREFETCH
1731	select CPU_SUPPORTS_32BIT_KERNEL
1732	select CPU_SUPPORTS_64BIT_KERNEL
1733	select CPU_SUPPORTS_HIGHMEM
1734	select CPU_SUPPORTS_HUGEPAGES
1735
1736config CPU_SB1
1737	bool "SB1"
1738	depends on SYS_HAS_CPU_SB1
1739	select CPU_SUPPORTS_32BIT_KERNEL
1740	select CPU_SUPPORTS_64BIT_KERNEL
1741	select CPU_SUPPORTS_HIGHMEM
1742	select CPU_SUPPORTS_HUGEPAGES
1743	select WEAK_ORDERING
1744
1745config CPU_CAVIUM_OCTEON
1746	bool "Cavium Octeon processor"
1747	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1748	select CPU_HAS_PREFETCH
1749	select CPU_SUPPORTS_64BIT_KERNEL
1750	select WEAK_ORDERING
1751	select CPU_SUPPORTS_HIGHMEM
1752	select CPU_SUPPORTS_HUGEPAGES
1753	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1754	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1755	select MIPS_L1_CACHE_SHIFT_7
1756	select HAVE_KVM
1757	help
1758	  The Cavium Octeon processor is a highly integrated chip containing
1759	  many ethernet hardware widgets for networking tasks. The processor
1760	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1761	  Full details can be found at http://www.caviumnetworks.com.
1762
1763config CPU_BMIPS
1764	bool "Broadcom BMIPS"
1765	depends on SYS_HAS_CPU_BMIPS
1766	select CPU_MIPS32
1767	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1768	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1769	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1770	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1771	select CPU_SUPPORTS_32BIT_KERNEL
1772	select DMA_NONCOHERENT
1773	select IRQ_MIPS_CPU
1774	select SWAP_IO_SPACE
1775	select WEAK_ORDERING
1776	select CPU_SUPPORTS_HIGHMEM
1777	select CPU_HAS_PREFETCH
1778	select CPU_SUPPORTS_CPUFREQ
1779	select MIPS_EXTERNAL_TIMER
1780	help
1781	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1782
1783config CPU_XLR
1784	bool "Netlogic XLR SoC"
1785	depends on SYS_HAS_CPU_XLR
1786	select CPU_SUPPORTS_32BIT_KERNEL
1787	select CPU_SUPPORTS_64BIT_KERNEL
1788	select CPU_SUPPORTS_HIGHMEM
1789	select CPU_SUPPORTS_HUGEPAGES
1790	select WEAK_ORDERING
1791	select WEAK_REORDERING_BEYOND_LLSC
1792	help
1793	  Netlogic Microsystems XLR/XLS processors.
1794
1795config CPU_XLP
1796	bool "Netlogic XLP SoC"
1797	depends on SYS_HAS_CPU_XLP
1798	select CPU_SUPPORTS_32BIT_KERNEL
1799	select CPU_SUPPORTS_64BIT_KERNEL
1800	select CPU_SUPPORTS_HIGHMEM
1801	select WEAK_ORDERING
1802	select WEAK_REORDERING_BEYOND_LLSC
1803	select CPU_HAS_PREFETCH
1804	select CPU_MIPSR2
1805	select CPU_SUPPORTS_HUGEPAGES
1806	select MIPS_ASID_BITS_VARIABLE
1807	help
1808	  Netlogic Microsystems XLP processors.
1809endchoice
1810
1811config CPU_MIPS32_3_5_FEATURES
1812	bool "MIPS32 Release 3.5 Features"
1813	depends on SYS_HAS_CPU_MIPS32_R3_5
1814	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1815		   CPU_P5600
1816	help
1817	  Choose this option to build a kernel for release 2 or later of the
1818	  MIPS32 architecture including features from the 3.5 release such as
1819	  support for Enhanced Virtual Addressing (EVA).
1820
1821config CPU_MIPS32_3_5_EVA
1822	bool "Enhanced Virtual Addressing (EVA)"
1823	depends on CPU_MIPS32_3_5_FEATURES
1824	select EVA
1825	default y
1826	help
1827	  Choose this option if you want to enable the Enhanced Virtual
1828	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1829	  One of its primary benefits is an increase in the maximum size
1830	  of lowmem (up to 3GB). If unsure, say 'N' here.
1831
1832config CPU_MIPS32_R5_FEATURES
1833	bool "MIPS32 Release 5 Features"
1834	depends on SYS_HAS_CPU_MIPS32_R5
1835	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1836	help
1837	  Choose this option to build a kernel for release 2 or later of the
1838	  MIPS32 architecture including features from release 5 such as
1839	  support for Extended Physical Addressing (XPA).
1840
1841config CPU_MIPS32_R5_XPA
1842	bool "Extended Physical Addressing (XPA)"
1843	depends on CPU_MIPS32_R5_FEATURES
1844	depends on !EVA
1845	depends on !PAGE_SIZE_4KB
1846	depends on SYS_SUPPORTS_HIGHMEM
1847	select XPA
1848	select HIGHMEM
1849	select PHYS_ADDR_T_64BIT
1850	default n
1851	help
1852	  Choose this option if you want to enable the Extended Physical
1853	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1854	  benefit is to increase physical addressing equal to or greater
1855	  than 40 bits. Note that this has the side effect of turning on
1856	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1857	  If unsure, say 'N' here.
1858
1859if CPU_LOONGSON2F
1860config CPU_NOP_WORKAROUNDS
1861	bool
1862
1863config CPU_JUMP_WORKAROUNDS
1864	bool
1865
1866config CPU_LOONGSON2F_WORKAROUNDS
1867	bool "Loongson 2F Workarounds"
1868	default y
1869	select CPU_NOP_WORKAROUNDS
1870	select CPU_JUMP_WORKAROUNDS
1871	help
1872	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1873	  require workarounds.  Without workarounds the system may hang
1874	  unexpectedly.  For more information please refer to the gas
1875	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1876
1877	  Loongson 2F03 and later have fixed these issues and no workarounds
1878	  are needed.  The workarounds have no significant side effect on them
1879	  but may decrease the performance of the system so this option should
1880	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1881	  systems.
1882
1883	  If unsure, please say Y.
1884endif # CPU_LOONGSON2F
1885
1886config SYS_SUPPORTS_ZBOOT
1887	bool
1888	select HAVE_KERNEL_GZIP
1889	select HAVE_KERNEL_BZIP2
1890	select HAVE_KERNEL_LZ4
1891	select HAVE_KERNEL_LZMA
1892	select HAVE_KERNEL_LZO
1893	select HAVE_KERNEL_XZ
1894
1895config SYS_SUPPORTS_ZBOOT_UART16550
1896	bool
1897	select SYS_SUPPORTS_ZBOOT
1898
1899config SYS_SUPPORTS_ZBOOT_UART_PROM
1900	bool
1901	select SYS_SUPPORTS_ZBOOT
1902
1903config CPU_LOONGSON2EF
1904	bool
1905	select CPU_SUPPORTS_32BIT_KERNEL
1906	select CPU_SUPPORTS_64BIT_KERNEL
1907	select CPU_SUPPORTS_HIGHMEM
1908	select CPU_SUPPORTS_HUGEPAGES
1909	select ARCH_HAS_PHYS_TO_DMA
1910
1911config CPU_LOONGSON32
1912	bool
1913	select CPU_MIPS32
1914	select CPU_MIPSR2
1915	select CPU_HAS_PREFETCH
1916	select CPU_SUPPORTS_32BIT_KERNEL
1917	select CPU_SUPPORTS_HIGHMEM
1918	select CPU_SUPPORTS_CPUFREQ
1919
1920config CPU_BMIPS32_3300
1921	select SMP_UP if SMP
1922	bool
1923
1924config CPU_BMIPS4350
1925	bool
1926	select SYS_SUPPORTS_SMP
1927	select SYS_SUPPORTS_HOTPLUG_CPU
1928
1929config CPU_BMIPS4380
1930	bool
1931	select MIPS_L1_CACHE_SHIFT_6
1932	select SYS_SUPPORTS_SMP
1933	select SYS_SUPPORTS_HOTPLUG_CPU
1934	select CPU_HAS_RIXI
1935
1936config CPU_BMIPS5000
1937	bool
1938	select MIPS_CPU_SCACHE
1939	select MIPS_L1_CACHE_SHIFT_7
1940	select SYS_SUPPORTS_SMP
1941	select SYS_SUPPORTS_HOTPLUG_CPU
1942	select CPU_HAS_RIXI
1943
1944config SYS_HAS_CPU_LOONGSON64
1945	bool
1946	select CPU_SUPPORTS_CPUFREQ
1947	select CPU_HAS_RIXI
1948
1949config SYS_HAS_CPU_LOONGSON2E
1950	bool
1951
1952config SYS_HAS_CPU_LOONGSON2F
1953	bool
1954	select CPU_SUPPORTS_CPUFREQ
1955	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1956
1957config SYS_HAS_CPU_LOONGSON1B
1958	bool
1959
1960config SYS_HAS_CPU_LOONGSON1C
1961	bool
1962
1963config SYS_HAS_CPU_MIPS32_R1
1964	bool
1965
1966config SYS_HAS_CPU_MIPS32_R2
1967	bool
1968
1969config SYS_HAS_CPU_MIPS32_R3_5
1970	bool
1971
1972config SYS_HAS_CPU_MIPS32_R5
1973	bool
1974	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1975
1976config SYS_HAS_CPU_MIPS32_R6
1977	bool
1978	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1979
1980config SYS_HAS_CPU_MIPS64_R1
1981	bool
1982
1983config SYS_HAS_CPU_MIPS64_R2
1984	bool
1985
1986config SYS_HAS_CPU_MIPS64_R6
1987	bool
1988	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1989
1990config SYS_HAS_CPU_P5600
1991	bool
1992	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1993
1994config SYS_HAS_CPU_R3000
1995	bool
1996
1997config SYS_HAS_CPU_TX39XX
1998	bool
1999
2000config SYS_HAS_CPU_VR41XX
2001	bool
2002
2003config SYS_HAS_CPU_R4X00
2004	bool
2005
2006config SYS_HAS_CPU_TX49XX
2007	bool
2008
2009config SYS_HAS_CPU_R5000
2010	bool
2011
2012config SYS_HAS_CPU_R5500
2013	bool
2014
2015config SYS_HAS_CPU_NEVADA
2016	bool
2017
2018config SYS_HAS_CPU_R10000
2019	bool
2020	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2021
2022config SYS_HAS_CPU_RM7000
2023	bool
2024
2025config SYS_HAS_CPU_SB1
2026	bool
2027
2028config SYS_HAS_CPU_CAVIUM_OCTEON
2029	bool
2030
2031config SYS_HAS_CPU_BMIPS
2032	bool
2033
2034config SYS_HAS_CPU_BMIPS32_3300
2035	bool
2036	select SYS_HAS_CPU_BMIPS
2037
2038config SYS_HAS_CPU_BMIPS4350
2039	bool
2040	select SYS_HAS_CPU_BMIPS
2041
2042config SYS_HAS_CPU_BMIPS4380
2043	bool
2044	select SYS_HAS_CPU_BMIPS
2045
2046config SYS_HAS_CPU_BMIPS5000
2047	bool
2048	select SYS_HAS_CPU_BMIPS
2049	select ARCH_HAS_SYNC_DMA_FOR_CPU
2050
2051config SYS_HAS_CPU_XLR
2052	bool
2053
2054config SYS_HAS_CPU_XLP
2055	bool
2056
2057#
2058# CPU may reorder R->R, R->W, W->R, W->W
2059# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2060#
2061config WEAK_ORDERING
2062	bool
2063
2064#
2065# CPU may reorder reads and writes beyond LL/SC
2066# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2067#
2068config WEAK_REORDERING_BEYOND_LLSC
2069	bool
2070endmenu
2071
2072#
2073# These two indicate any level of the MIPS32 and MIPS64 architecture
2074#
2075config CPU_MIPS32
2076	bool
2077	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2078		     CPU_MIPS32_R6 || CPU_P5600
2079
2080config CPU_MIPS64
2081	bool
2082	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2083		     CPU_MIPS64_R6
2084
2085#
2086# These indicate the revision of the architecture
2087#
2088config CPU_MIPSR1
2089	bool
2090	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2091
2092config CPU_MIPSR2
2093	bool
2094	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2095	select CPU_HAS_RIXI
2096	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2097	select MIPS_SPRAM
2098
2099config CPU_MIPSR5
2100	bool
2101	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2102	select CPU_HAS_RIXI
2103	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2104	select MIPS_SPRAM
2105
2106config CPU_MIPSR6
2107	bool
2108	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2109	select CPU_HAS_RIXI
2110	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2111	select HAVE_ARCH_BITREVERSE
2112	select MIPS_ASID_BITS_VARIABLE
2113	select MIPS_CRC_SUPPORT
2114	select MIPS_SPRAM
2115
2116config TARGET_ISA_REV
2117	int
2118	default 1 if CPU_MIPSR1
2119	default 2 if CPU_MIPSR2
2120	default 5 if CPU_MIPSR5
2121	default 6 if CPU_MIPSR6
2122	default 0
2123	help
2124	  Reflects the ISA revision being targeted by the kernel build. This
2125	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2126
2127config EVA
2128	bool
2129
2130config XPA
2131	bool
2132
2133config SYS_SUPPORTS_32BIT_KERNEL
2134	bool
2135config SYS_SUPPORTS_64BIT_KERNEL
2136	bool
2137config CPU_SUPPORTS_32BIT_KERNEL
2138	bool
2139config CPU_SUPPORTS_64BIT_KERNEL
2140	bool
2141config CPU_SUPPORTS_CPUFREQ
2142	bool
2143config CPU_SUPPORTS_ADDRWINCFG
2144	bool
2145config CPU_SUPPORTS_HUGEPAGES
2146	bool
2147	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2148config MIPS_PGD_C0_CONTEXT
2149	bool
2150	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2151
2152#
2153# Set to y for ptrace access to watch registers.
2154#
2155config HARDWARE_WATCHPOINTS
2156	bool
2157	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2158
2159menu "Kernel type"
2160
2161choice
2162	prompt "Kernel code model"
2163	help
2164	  You should only select this option if you have a workload that
2165	  actually benefits from 64-bit processing or if your machine has
2166	  large memory.  You will only be presented a single option in this
2167	  menu if your system does not support both 32-bit and 64-bit kernels.
2168
2169config 32BIT
2170	bool "32-bit kernel"
2171	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2172	select TRAD_SIGNALS
2173	help
2174	  Select this option if you want to build a 32-bit kernel.
2175
2176config 64BIT
2177	bool "64-bit kernel"
2178	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2179	help
2180	  Select this option if you want to build a 64-bit kernel.
2181
2182endchoice
2183
2184config KVM_GUEST
2185	bool "KVM Guest Kernel"
2186	depends on CPU_MIPS32_R2
2187	depends on BROKEN_ON_SMP
2188	help
2189	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2190	  mode.
2191
2192config KVM_GUEST_TIMER_FREQ
2193	int "Count/Compare Timer Frequency (MHz)"
2194	depends on KVM_GUEST
2195	default 100
2196	help
2197	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2198	  emulation when determining guest CPU Frequency. Instead, the guest's
2199	  timer frequency is specified directly.
2200
2201config MIPS_VA_BITS_48
2202	bool "48 bits virtual memory"
2203	depends on 64BIT
2204	help
2205	  Support a maximum at least 48 bits of application virtual
2206	  memory.  Default is 40 bits or less, depending on the CPU.
2207	  For page sizes 16k and above, this option results in a small
2208	  memory overhead for page tables.  For 4k page size, a fourth
2209	  level of page tables is added which imposes both a memory
2210	  overhead as well as slower TLB fault handling.
2211
2212	  If unsure, say N.
2213
2214choice
2215	prompt "Kernel page size"
2216	default PAGE_SIZE_4KB
2217
2218config PAGE_SIZE_4KB
2219	bool "4kB"
2220	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2221	help
2222	  This option select the standard 4kB Linux page size.  On some
2223	  R3000-family processors this is the only available page size.  Using
2224	  4kB page size will minimize memory consumption and is therefore
2225	  recommended for low memory systems.
2226
2227config PAGE_SIZE_8KB
2228	bool "8kB"
2229	depends on CPU_CAVIUM_OCTEON
2230	depends on !MIPS_VA_BITS_48
2231	help
2232	  Using 8kB page size will result in higher performance kernel at
2233	  the price of higher memory consumption.  This option is available
2234	  only on cnMIPS processors.  Note that you will need a suitable Linux
2235	  distribution to support this.
2236
2237config PAGE_SIZE_16KB
2238	bool "16kB"
2239	depends on !CPU_R3000 && !CPU_TX39XX
2240	help
2241	  Using 16kB page size will result in higher performance kernel at
2242	  the price of higher memory consumption.  This option is available on
2243	  all non-R3000 family processors.  Note that you will need a suitable
2244	  Linux distribution to support this.
2245
2246config PAGE_SIZE_32KB
2247	bool "32kB"
2248	depends on CPU_CAVIUM_OCTEON
2249	depends on !MIPS_VA_BITS_48
2250	help
2251	  Using 32kB page size will result in higher performance kernel at
2252	  the price of higher memory consumption.  This option is available
2253	  only on cnMIPS cores.  Note that you will need a suitable Linux
2254	  distribution to support this.
2255
2256config PAGE_SIZE_64KB
2257	bool "64kB"
2258	depends on !CPU_R3000 && !CPU_TX39XX
2259	help
2260	  Using 64kB page size will result in higher performance kernel at
2261	  the price of higher memory consumption.  This option is available on
2262	  all non-R3000 family processor.  Not that at the time of this
2263	  writing this option is still high experimental.
2264
2265endchoice
2266
2267config FORCE_MAX_ZONEORDER
2268	int "Maximum zone order"
2269	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2270	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2271	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2272	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2273	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2274	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2275	range 11 64
2276	default "11"
2277	help
2278	  The kernel memory allocator divides physically contiguous memory
2279	  blocks into "zones", where each zone is a power of two number of
2280	  pages.  This option selects the largest power of two that the kernel
2281	  keeps in the memory allocator.  If you need to allocate very large
2282	  blocks of physically contiguous memory, then you may need to
2283	  increase this value.
2284
2285	  This config option is actually maximum order plus one. For example,
2286	  a value of 11 means that the largest free memory block is 2^10 pages.
2287
2288	  The page size is not necessarily 4KB.  Keep this in mind
2289	  when choosing a value for this option.
2290
2291config BOARD_SCACHE
2292	bool
2293
2294config IP22_CPU_SCACHE
2295	bool
2296	select BOARD_SCACHE
2297
2298#
2299# Support for a MIPS32 / MIPS64 style S-caches
2300#
2301config MIPS_CPU_SCACHE
2302	bool
2303	select BOARD_SCACHE
2304
2305config R5000_CPU_SCACHE
2306	bool
2307	select BOARD_SCACHE
2308
2309config RM7000_CPU_SCACHE
2310	bool
2311	select BOARD_SCACHE
2312
2313config SIBYTE_DMA_PAGEOPS
2314	bool "Use DMA to clear/copy pages"
2315	depends on CPU_SB1
2316	help
2317	  Instead of using the CPU to zero and copy pages, use a Data Mover
2318	  channel.  These DMA channels are otherwise unused by the standard
2319	  SiByte Linux port.  Seems to give a small performance benefit.
2320
2321config CPU_HAS_PREFETCH
2322	bool
2323
2324config CPU_GENERIC_DUMP_TLB
2325	bool
2326	default y if !(CPU_R3000 || CPU_TX39XX)
2327
2328config MIPS_FP_SUPPORT
2329	bool "Floating Point support" if EXPERT
2330	default y
2331	help
2332	  Select y to include support for floating point in the kernel
2333	  including initialization of FPU hardware, FP context save & restore
2334	  and emulation of an FPU where necessary. Without this support any
2335	  userland program attempting to use floating point instructions will
2336	  receive a SIGILL.
2337
2338	  If you know that your userland will not attempt to use floating point
2339	  instructions then you can say n here to shrink the kernel a little.
2340
2341	  If unsure, say y.
2342
2343config CPU_R2300_FPU
2344	bool
2345	depends on MIPS_FP_SUPPORT
2346	default y if CPU_R3000 || CPU_TX39XX
2347
2348config CPU_R3K_TLB
2349	bool
2350
2351config CPU_R4K_FPU
2352	bool
2353	depends on MIPS_FP_SUPPORT
2354	default y if !CPU_R2300_FPU
2355
2356config CPU_R4K_CACHE_TLB
2357	bool
2358	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2359
2360config MIPS_MT_SMP
2361	bool "MIPS MT SMP support (1 TC on each available VPE)"
2362	default y
2363	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2364	select CPU_MIPSR2_IRQ_VI
2365	select CPU_MIPSR2_IRQ_EI
2366	select SYNC_R4K
2367	select MIPS_MT
2368	select SMP
2369	select SMP_UP
2370	select SYS_SUPPORTS_SMP
2371	select SYS_SUPPORTS_SCHED_SMT
2372	select MIPS_PERF_SHARED_TC_COUNTERS
2373	help
2374	  This is a kernel model which is known as SMVP. This is supported
2375	  on cores with the MT ASE and uses the available VPEs to implement
2376	  virtual processors which supports SMP. This is equivalent to the
2377	  Intel Hyperthreading feature. For further information go to
2378	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2379
2380config MIPS_MT
2381	bool
2382
2383config SCHED_SMT
2384	bool "SMT (multithreading) scheduler support"
2385	depends on SYS_SUPPORTS_SCHED_SMT
2386	default n
2387	help
2388	  SMT scheduler support improves the CPU scheduler's decision making
2389	  when dealing with MIPS MT enabled cores at a cost of slightly
2390	  increased overhead in some places. If unsure say N here.
2391
2392config SYS_SUPPORTS_SCHED_SMT
2393	bool
2394
2395config SYS_SUPPORTS_MULTITHREADING
2396	bool
2397
2398config MIPS_MT_FPAFF
2399	bool "Dynamic FPU affinity for FP-intensive threads"
2400	default y
2401	depends on MIPS_MT_SMP
2402
2403config MIPSR2_TO_R6_EMULATOR
2404	bool "MIPS R2-to-R6 emulator"
2405	depends on CPU_MIPSR6
2406	depends on MIPS_FP_SUPPORT
2407	default y
2408	help
2409	  Choose this option if you want to run non-R6 MIPS userland code.
2410	  Even if you say 'Y' here, the emulator will still be disabled by
2411	  default. You can enable it using the 'mipsr2emu' kernel option.
2412	  The only reason this is a build-time option is to save ~14K from the
2413	  final kernel image.
2414
2415config SYS_SUPPORTS_VPE_LOADER
2416	bool
2417	depends on SYS_SUPPORTS_MULTITHREADING
2418	help
2419	  Indicates that the platform supports the VPE loader, and provides
2420	  physical_memsize.
2421
2422config MIPS_VPE_LOADER
2423	bool "VPE loader support."
2424	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2425	select CPU_MIPSR2_IRQ_VI
2426	select CPU_MIPSR2_IRQ_EI
2427	select MIPS_MT
2428	help
2429	  Includes a loader for loading an elf relocatable object
2430	  onto another VPE and running it.
2431
2432config MIPS_VPE_LOADER_CMP
2433	bool
2434	default "y"
2435	depends on MIPS_VPE_LOADER && MIPS_CMP
2436
2437config MIPS_VPE_LOADER_MT
2438	bool
2439	default "y"
2440	depends on MIPS_VPE_LOADER && !MIPS_CMP
2441
2442config MIPS_VPE_LOADER_TOM
2443	bool "Load VPE program into memory hidden from linux"
2444	depends on MIPS_VPE_LOADER
2445	default y
2446	help
2447	  The loader can use memory that is present but has been hidden from
2448	  Linux using the kernel command line option "mem=xxMB". It's up to
2449	  you to ensure the amount you put in the option and the space your
2450	  program requires is less or equal to the amount physically present.
2451
2452config MIPS_VPE_APSP_API
2453	bool "Enable support for AP/SP API (RTLX)"
2454	depends on MIPS_VPE_LOADER
2455
2456config MIPS_VPE_APSP_API_CMP
2457	bool
2458	default "y"
2459	depends on MIPS_VPE_APSP_API && MIPS_CMP
2460
2461config MIPS_VPE_APSP_API_MT
2462	bool
2463	default "y"
2464	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2465
2466config MIPS_CMP
2467	bool "MIPS CMP framework support (DEPRECATED)"
2468	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2469	select SMP
2470	select SYNC_R4K
2471	select SYS_SUPPORTS_SMP
2472	select WEAK_ORDERING
2473	default n
2474	help
2475	  Select this if you are using a bootloader which implements the "CMP
2476	  framework" protocol (ie. YAMON) and want your kernel to make use of
2477	  its ability to start secondary CPUs.
2478
2479	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2480	  instead of this.
2481
2482config MIPS_CPS
2483	bool "MIPS Coherent Processing System support"
2484	depends on SYS_SUPPORTS_MIPS_CPS
2485	select MIPS_CM
2486	select MIPS_CPS_PM if HOTPLUG_CPU
2487	select SMP
2488	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2489	select SYS_SUPPORTS_HOTPLUG_CPU
2490	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2491	select SYS_SUPPORTS_SMP
2492	select WEAK_ORDERING
2493	help
2494	  Select this if you wish to run an SMP kernel across multiple cores
2495	  within a MIPS Coherent Processing System. When this option is
2496	  enabled the kernel will probe for other cores and boot them with
2497	  no external assistance. It is safe to enable this when hardware
2498	  support is unavailable.
2499
2500config MIPS_CPS_PM
2501	depends on MIPS_CPS
2502	bool
2503
2504config MIPS_CM
2505	bool
2506	select MIPS_CPC
2507
2508config MIPS_CPC
2509	bool
2510
2511config SB1_PASS_2_WORKAROUNDS
2512	bool
2513	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2514	default y
2515
2516config SB1_PASS_2_1_WORKAROUNDS
2517	bool
2518	depends on CPU_SB1 && CPU_SB1_PASS_2
2519	default y
2520
2521choice
2522	prompt "SmartMIPS or microMIPS ASE support"
2523
2524config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2525	bool "None"
2526	help
2527	  Select this if you want neither microMIPS nor SmartMIPS support
2528
2529config CPU_HAS_SMARTMIPS
2530	depends on SYS_SUPPORTS_SMARTMIPS
2531	bool "SmartMIPS"
2532	help
2533	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2534	  increased security at both hardware and software level for
2535	  smartcards.  Enabling this option will allow proper use of the
2536	  SmartMIPS instructions by Linux applications.  However a kernel with
2537	  this option will not work on a MIPS core without SmartMIPS core.  If
2538	  you don't know you probably don't have SmartMIPS and should say N
2539	  here.
2540
2541config CPU_MICROMIPS
2542	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2543	bool "microMIPS"
2544	help
2545	  When this option is enabled the kernel will be built using the
2546	  microMIPS ISA
2547
2548endchoice
2549
2550config CPU_HAS_MSA
2551	bool "Support for the MIPS SIMD Architecture"
2552	depends on CPU_SUPPORTS_MSA
2553	depends on MIPS_FP_SUPPORT
2554	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2555	help
2556	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2557	  and a set of SIMD instructions to operate on them. When this option
2558	  is enabled the kernel will support allocating & switching MSA
2559	  vector register contexts. If you know that your kernel will only be
2560	  running on CPUs which do not support MSA or that your userland will
2561	  not be making use of it then you may wish to say N here to reduce
2562	  the size & complexity of your kernel.
2563
2564	  If unsure, say Y.
2565
2566config CPU_HAS_WB
2567	bool
2568
2569config XKS01
2570	bool
2571
2572config CPU_HAS_DIEI
2573	depends on !CPU_DIEI_BROKEN
2574	bool
2575
2576config CPU_DIEI_BROKEN
2577	bool
2578
2579config CPU_HAS_RIXI
2580	bool
2581
2582config CPU_NO_LOAD_STORE_LR
2583	bool
2584	help
2585	  CPU lacks support for unaligned load and store instructions:
2586	  LWL, LWR, SWL, SWR (Load/store word left/right).
2587	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2588	  systems).
2589
2590#
2591# Vectored interrupt mode is an R2 feature
2592#
2593config CPU_MIPSR2_IRQ_VI
2594	bool
2595
2596#
2597# Extended interrupt mode is an R2 feature
2598#
2599config CPU_MIPSR2_IRQ_EI
2600	bool
2601
2602config CPU_HAS_SYNC
2603	bool
2604	depends on !CPU_R3000
2605	default y
2606
2607#
2608# CPU non-features
2609#
2610config CPU_DADDI_WORKAROUNDS
2611	bool
2612
2613config CPU_R4000_WORKAROUNDS
2614	bool
2615	select CPU_R4400_WORKAROUNDS
2616
2617config CPU_R4400_WORKAROUNDS
2618	bool
2619
2620config CPU_R4X00_BUGS64
2621	bool
2622	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2623
2624config MIPS_ASID_SHIFT
2625	int
2626	default 6 if CPU_R3000 || CPU_TX39XX
2627	default 0
2628
2629config MIPS_ASID_BITS
2630	int
2631	default 0 if MIPS_ASID_BITS_VARIABLE
2632	default 6 if CPU_R3000 || CPU_TX39XX
2633	default 8
2634
2635config MIPS_ASID_BITS_VARIABLE
2636	bool
2637
2638config MIPS_CRC_SUPPORT
2639	bool
2640
2641#
2642# - Highmem only makes sense for the 32-bit kernel.
2643# - The current highmem code will only work properly on physically indexed
2644#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2645#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2646#   moment we protect the user and offer the highmem option only on machines
2647#   where it's known to be safe.  This will not offer highmem on a few systems
2648#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2649#   indexed CPUs but we're playing safe.
2650# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2651#   know they might have memory configurations that could make use of highmem
2652#   support.
2653#
2654config HIGHMEM
2655	bool "High Memory Support"
2656	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2657
2658config CPU_SUPPORTS_HIGHMEM
2659	bool
2660
2661config SYS_SUPPORTS_HIGHMEM
2662	bool
2663
2664config SYS_SUPPORTS_SMARTMIPS
2665	bool
2666
2667config SYS_SUPPORTS_MICROMIPS
2668	bool
2669
2670config SYS_SUPPORTS_MIPS16
2671	bool
2672	help
2673	  This option must be set if a kernel might be executed on a MIPS16-
2674	  enabled CPU even if MIPS16 is not actually being used.  In other
2675	  words, it makes the kernel MIPS16-tolerant.
2676
2677config CPU_SUPPORTS_MSA
2678	bool
2679
2680config ARCH_FLATMEM_ENABLE
2681	def_bool y
2682	depends on !NUMA && !CPU_LOONGSON2EF
2683
2684config ARCH_SPARSEMEM_ENABLE
2685	bool
2686	select SPARSEMEM_STATIC if !SGI_IP27
2687
2688config NUMA
2689	bool "NUMA Support"
2690	depends on SYS_SUPPORTS_NUMA
2691	help
2692	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2693	  Access).  This option improves performance on systems with more
2694	  than two nodes; on two node systems it is generally better to
2695	  leave it disabled; on single node systems leave this option
2696	  disabled.
2697
2698config SYS_SUPPORTS_NUMA
2699	bool
2700
2701config HAVE_SETUP_PER_CPU_AREA
2702	def_bool y
2703	depends on NUMA
2704
2705config NEED_PER_CPU_EMBED_FIRST_CHUNK
2706	def_bool y
2707	depends on NUMA
2708
2709config RELOCATABLE
2710	bool "Relocatable kernel"
2711	depends on SYS_SUPPORTS_RELOCATABLE
2712	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2713		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2714		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2715		   CPU_P5600 || CAVIUM_OCTEON_SOC
2716	help
2717	  This builds a kernel image that retains relocation information
2718	  so it can be loaded someplace besides the default 1MB.
2719	  The relocations make the kernel binary about 15% larger,
2720	  but are discarded at runtime
2721
2722config RELOCATION_TABLE_SIZE
2723	hex "Relocation table size"
2724	depends on RELOCATABLE
2725	range 0x0 0x01000000
2726	default "0x00100000"
2727	help
2728	  A table of relocation data will be appended to the kernel binary
2729	  and parsed at boot to fix up the relocated kernel.
2730
2731	  This option allows the amount of space reserved for the table to be
2732	  adjusted, although the default of 1Mb should be ok in most cases.
2733
2734	  The build will fail and a valid size suggested if this is too small.
2735
2736	  If unsure, leave at the default value.
2737
2738config RANDOMIZE_BASE
2739	bool "Randomize the address of the kernel image"
2740	depends on RELOCATABLE
2741	help
2742	  Randomizes the physical and virtual address at which the
2743	  kernel image is loaded, as a security feature that
2744	  deters exploit attempts relying on knowledge of the location
2745	  of kernel internals.
2746
2747	  Entropy is generated using any coprocessor 0 registers available.
2748
2749	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2750
2751	  If unsure, say N.
2752
2753config RANDOMIZE_BASE_MAX_OFFSET
2754	hex "Maximum kASLR offset" if EXPERT
2755	depends on RANDOMIZE_BASE
2756	range 0x0 0x40000000 if EVA || 64BIT
2757	range 0x0 0x08000000
2758	default "0x01000000"
2759	help
2760	  When kASLR is active, this provides the maximum offset that will
2761	  be applied to the kernel image. It should be set according to the
2762	  amount of physical RAM available in the target system minus
2763	  PHYSICAL_START and must be a power of 2.
2764
2765	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2766	  EVA or 64-bit. The default is 16Mb.
2767
2768config NODES_SHIFT
2769	int
2770	default "6"
2771	depends on NEED_MULTIPLE_NODES
2772
2773config HW_PERF_EVENTS
2774	bool "Enable hardware performance counter support for perf events"
2775	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2776	default y
2777	help
2778	  Enable hardware performance counter support for perf events. If
2779	  disabled, perf events will use software events only.
2780
2781config DMI
2782	bool "Enable DMI scanning"
2783	depends on MACH_LOONGSON64
2784	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2785	default y
2786	help
2787	  Enabled scanning of DMI to identify machine quirks. Say Y
2788	  here unless you have verified that your setup is not
2789	  affected by entries in the DMI blacklist. Required by PNP
2790	  BIOS code.
2791
2792config SMP
2793	bool "Multi-Processing support"
2794	depends on SYS_SUPPORTS_SMP
2795	help
2796	  This enables support for systems with more than one CPU. If you have
2797	  a system with only one CPU, say N. If you have a system with more
2798	  than one CPU, say Y.
2799
2800	  If you say N here, the kernel will run on uni- and multiprocessor
2801	  machines, but will use only one CPU of a multiprocessor machine. If
2802	  you say Y here, the kernel will run on many, but not all,
2803	  uniprocessor machines. On a uniprocessor machine, the kernel
2804	  will run faster if you say N here.
2805
2806	  People using multiprocessor machines who say Y here should also say
2807	  Y to "Enhanced Real Time Clock Support", below.
2808
2809	  See also the SMP-HOWTO available at
2810	  <https://www.tldp.org/docs.html#howto>.
2811
2812	  If you don't know what to do here, say N.
2813
2814config HOTPLUG_CPU
2815	bool "Support for hot-pluggable CPUs"
2816	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2817	help
2818	  Say Y here to allow turning CPUs off and on. CPUs can be
2819	  controlled through /sys/devices/system/cpu.
2820	  (Note: power management support will enable this option
2821	    automatically on SMP systems. )
2822	  Say N if you want to disable CPU hotplug.
2823
2824config SMP_UP
2825	bool
2826
2827config SYS_SUPPORTS_MIPS_CMP
2828	bool
2829
2830config SYS_SUPPORTS_MIPS_CPS
2831	bool
2832
2833config SYS_SUPPORTS_SMP
2834	bool
2835
2836config NR_CPUS_DEFAULT_4
2837	bool
2838
2839config NR_CPUS_DEFAULT_8
2840	bool
2841
2842config NR_CPUS_DEFAULT_16
2843	bool
2844
2845config NR_CPUS_DEFAULT_32
2846	bool
2847
2848config NR_CPUS_DEFAULT_64
2849	bool
2850
2851config NR_CPUS
2852	int "Maximum number of CPUs (2-256)"
2853	range 2 256
2854	depends on SMP
2855	default "4" if NR_CPUS_DEFAULT_4
2856	default "8" if NR_CPUS_DEFAULT_8
2857	default "16" if NR_CPUS_DEFAULT_16
2858	default "32" if NR_CPUS_DEFAULT_32
2859	default "64" if NR_CPUS_DEFAULT_64
2860	help
2861	  This allows you to specify the maximum number of CPUs which this
2862	  kernel will support.  The maximum supported value is 32 for 32-bit
2863	  kernel and 64 for 64-bit kernels; the minimum value which makes
2864	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2865	  and 2 for all others.
2866
2867	  This is purely to save memory - each supported CPU adds
2868	  approximately eight kilobytes to the kernel image.  For best
2869	  performance should round up your number of processors to the next
2870	  power of two.
2871
2872config MIPS_PERF_SHARED_TC_COUNTERS
2873	bool
2874
2875config MIPS_NR_CPU_NR_MAP_1024
2876	bool
2877
2878config MIPS_NR_CPU_NR_MAP
2879	int
2880	depends on SMP
2881	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2882	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2883
2884#
2885# Timer Interrupt Frequency Configuration
2886#
2887
2888choice
2889	prompt "Timer frequency"
2890	default HZ_250
2891	help
2892	  Allows the configuration of the timer frequency.
2893
2894	config HZ_24
2895		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2896
2897	config HZ_48
2898		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2899
2900	config HZ_100
2901		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2902
2903	config HZ_128
2904		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2905
2906	config HZ_250
2907		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2908
2909	config HZ_256
2910		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2911
2912	config HZ_1000
2913		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2914
2915	config HZ_1024
2916		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2917
2918endchoice
2919
2920config SYS_SUPPORTS_24HZ
2921	bool
2922
2923config SYS_SUPPORTS_48HZ
2924	bool
2925
2926config SYS_SUPPORTS_100HZ
2927	bool
2928
2929config SYS_SUPPORTS_128HZ
2930	bool
2931
2932config SYS_SUPPORTS_250HZ
2933	bool
2934
2935config SYS_SUPPORTS_256HZ
2936	bool
2937
2938config SYS_SUPPORTS_1000HZ
2939	bool
2940
2941config SYS_SUPPORTS_1024HZ
2942	bool
2943
2944config SYS_SUPPORTS_ARBIT_HZ
2945	bool
2946	default y if !SYS_SUPPORTS_24HZ && \
2947		     !SYS_SUPPORTS_48HZ && \
2948		     !SYS_SUPPORTS_100HZ && \
2949		     !SYS_SUPPORTS_128HZ && \
2950		     !SYS_SUPPORTS_250HZ && \
2951		     !SYS_SUPPORTS_256HZ && \
2952		     !SYS_SUPPORTS_1000HZ && \
2953		     !SYS_SUPPORTS_1024HZ
2954
2955config HZ
2956	int
2957	default 24 if HZ_24
2958	default 48 if HZ_48
2959	default 100 if HZ_100
2960	default 128 if HZ_128
2961	default 250 if HZ_250
2962	default 256 if HZ_256
2963	default 1000 if HZ_1000
2964	default 1024 if HZ_1024
2965
2966config SCHED_HRTICK
2967	def_bool HIGH_RES_TIMERS
2968
2969config KEXEC
2970	bool "Kexec system call"
2971	select KEXEC_CORE
2972	help
2973	  kexec is a system call that implements the ability to shutdown your
2974	  current kernel, and to start another kernel.  It is like a reboot
2975	  but it is independent of the system firmware.   And like a reboot
2976	  you can start any kernel with it, not just Linux.
2977
2978	  The name comes from the similarity to the exec system call.
2979
2980	  It is an ongoing process to be certain the hardware in a machine
2981	  is properly shutdown, so do not be surprised if this code does not
2982	  initially work for you.  As of this writing the exact hardware
2983	  interface is strongly in flux, so no good recommendation can be
2984	  made.
2985
2986config CRASH_DUMP
2987	bool "Kernel crash dumps"
2988	help
2989	  Generate crash dump after being started by kexec.
2990	  This should be normally only set in special crash dump kernels
2991	  which are loaded in the main kernel with kexec-tools into
2992	  a specially reserved region and then later executed after
2993	  a crash by kdump/kexec. The crash dump kernel must be compiled
2994	  to a memory address not used by the main kernel or firmware using
2995	  PHYSICAL_START.
2996
2997config PHYSICAL_START
2998	hex "Physical address where the kernel is loaded"
2999	default "0xffffffff84000000"
3000	depends on CRASH_DUMP
3001	help
3002	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3003	  If you plan to use kernel for capturing the crash dump change
3004	  this value to start of the reserved region (the "X" value as
3005	  specified in the "crashkernel=YM@XM" command line boot parameter
3006	  passed to the panic-ed kernel).
3007
3008config SECCOMP
3009	bool "Enable seccomp to safely compute untrusted bytecode"
3010	depends on PROC_FS
3011	default y
3012	help
3013	  This kernel feature is useful for number crunching applications
3014	  that may need to compute untrusted bytecode during their
3015	  execution. By using pipes or other transports made available to
3016	  the process as file descriptors supporting the read/write
3017	  syscalls, it's possible to isolate those applications in
3018	  their own address space using seccomp. Once seccomp is
3019	  enabled via /proc/<pid>/seccomp, it cannot be disabled
3020	  and the task is only allowed to execute a few safe syscalls
3021	  defined by each seccomp mode.
3022
3023	  If unsure, say Y. Only embedded should say N here.
3024
3025config MIPS_O32_FP64_SUPPORT
3026	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3027	depends on 32BIT || MIPS32_O32
3028	help
3029	  When this is enabled, the kernel will support use of 64-bit floating
3030	  point registers with binaries using the O32 ABI along with the
3031	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3032	  32-bit MIPS systems this support is at the cost of increasing the
3033	  size and complexity of the compiled FPU emulator. Thus if you are
3034	  running a MIPS32 system and know that none of your userland binaries
3035	  will require 64-bit floating point, you may wish to reduce the size
3036	  of your kernel & potentially improve FP emulation performance by
3037	  saying N here.
3038
3039	  Although binutils currently supports use of this flag the details
3040	  concerning its effect upon the O32 ABI in userland are still being
3041	  worked on. In order to avoid userland becoming dependant upon current
3042	  behaviour before the details have been finalised, this option should
3043	  be considered experimental and only enabled by those working upon
3044	  said details.
3045
3046	  If unsure, say N.
3047
3048config USE_OF
3049	bool
3050	select OF
3051	select OF_EARLY_FLATTREE
3052	select IRQ_DOMAIN
3053
3054config UHI_BOOT
3055	bool
3056
3057config BUILTIN_DTB
3058	bool
3059
3060choice
3061	prompt "Kernel appended dtb support" if USE_OF
3062	default MIPS_NO_APPENDED_DTB
3063
3064	config MIPS_NO_APPENDED_DTB
3065		bool "None"
3066		help
3067		  Do not enable appended dtb support.
3068
3069	config MIPS_ELF_APPENDED_DTB
3070		bool "vmlinux"
3071		help
3072		  With this option, the boot code will look for a device tree binary
3073		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3074		  it is empty and the DTB can be appended using binutils command
3075		  objcopy:
3076
3077		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3078
3079		  This is meant as a backward compatiblity convenience for those
3080		  systems with a bootloader that can't be upgraded to accommodate
3081		  the documented boot protocol using a device tree.
3082
3083	config MIPS_RAW_APPENDED_DTB
3084		bool "vmlinux.bin or vmlinuz.bin"
3085		help
3086		  With this option, the boot code will look for a device tree binary
3087		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3088		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3089
3090		  This is meant as a backward compatibility convenience for those
3091		  systems with a bootloader that can't be upgraded to accommodate
3092		  the documented boot protocol using a device tree.
3093
3094		  Beware that there is very little in terms of protection against
3095		  this option being confused by leftover garbage in memory that might
3096		  look like a DTB header after a reboot if no actual DTB is appended
3097		  to vmlinux.bin.  Do not leave this option active in a production kernel
3098		  if you don't intend to always append a DTB.
3099endchoice
3100
3101choice
3102	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3103	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3104					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3105					 !CAVIUM_OCTEON_SOC
3106	default MIPS_CMDLINE_FROM_BOOTLOADER
3107
3108	config MIPS_CMDLINE_FROM_DTB
3109		depends on USE_OF
3110		bool "Dtb kernel arguments if available"
3111
3112	config MIPS_CMDLINE_DTB_EXTEND
3113		depends on USE_OF
3114		bool "Extend dtb kernel arguments with bootloader arguments"
3115
3116	config MIPS_CMDLINE_FROM_BOOTLOADER
3117		bool "Bootloader kernel arguments if available"
3118
3119	config MIPS_CMDLINE_BUILTIN_EXTEND
3120		depends on CMDLINE_BOOL
3121		bool "Extend builtin kernel arguments with bootloader arguments"
3122endchoice
3123
3124endmenu
3125
3126config LOCKDEP_SUPPORT
3127	bool
3128	default y
3129
3130config STACKTRACE_SUPPORT
3131	bool
3132	default y
3133
3134config PGTABLE_LEVELS
3135	int
3136	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3137	default 3 if 64BIT && !PAGE_SIZE_64KB
3138	default 2
3139
3140config MIPS_AUTO_PFN_OFFSET
3141	bool
3142
3143menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3144
3145config PCI_DRIVERS_GENERIC
3146	select PCI_DOMAINS_GENERIC if PCI
3147	bool
3148
3149config PCI_DRIVERS_LEGACY
3150	def_bool !PCI_DRIVERS_GENERIC
3151	select NO_GENERIC_PCI_IOPORT_MAP
3152	select PCI_DOMAINS if PCI
3153
3154#
3155# ISA support is now enabled via select.  Too many systems still have the one
3156# or other ISA chip on the board that users don't know about so don't expect
3157# users to choose the right thing ...
3158#
3159config ISA
3160	bool
3161
3162config TC
3163	bool "TURBOchannel support"
3164	depends on MACH_DECSTATION
3165	help
3166	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3167	  processors.  TURBOchannel programming specifications are available
3168	  at:
3169	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3170	  and:
3171	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3172	  Linux driver support status is documented at:
3173	  <http://www.linux-mips.org/wiki/DECstation>
3174
3175config MMU
3176	bool
3177	default y
3178
3179config ARCH_MMAP_RND_BITS_MIN
3180	default 12 if 64BIT
3181	default 8
3182
3183config ARCH_MMAP_RND_BITS_MAX
3184	default 18 if 64BIT
3185	default 15
3186
3187config ARCH_MMAP_RND_COMPAT_BITS_MIN
3188	default 8
3189
3190config ARCH_MMAP_RND_COMPAT_BITS_MAX
3191	default 15
3192
3193config I8253
3194	bool
3195	select CLKSRC_I8253
3196	select CLKEVT_I8253
3197	select MIPS_EXTERNAL_TIMER
3198
3199config ZONE_DMA
3200	bool
3201
3202config ZONE_DMA32
3203	bool
3204
3205endmenu
3206
3207config TRAD_SIGNALS
3208	bool
3209
3210config MIPS32_COMPAT
3211	bool
3212
3213config COMPAT
3214	bool
3215
3216config SYSVIPC_COMPAT
3217	bool
3218
3219config MIPS32_O32
3220	bool "Kernel support for o32 binaries"
3221	depends on 64BIT
3222	select ARCH_WANT_OLD_COMPAT_IPC
3223	select COMPAT
3224	select MIPS32_COMPAT
3225	select SYSVIPC_COMPAT if SYSVIPC
3226	help
3227	  Select this option if you want to run o32 binaries.  These are pure
3228	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3229	  existing binaries are in this format.
3230
3231	  If unsure, say Y.
3232
3233config MIPS32_N32
3234	bool "Kernel support for n32 binaries"
3235	depends on 64BIT
3236	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3237	select COMPAT
3238	select MIPS32_COMPAT
3239	select SYSVIPC_COMPAT if SYSVIPC
3240	help
3241	  Select this option if you want to run n32 binaries.  These are
3242	  64-bit binaries using 32-bit quantities for addressing and certain
3243	  data that would normally be 64-bit.  They are used in special
3244	  cases.
3245
3246	  If unsure, say N.
3247
3248config BINFMT_ELF32
3249	bool
3250	default y if MIPS32_O32 || MIPS32_N32
3251	select ELFCORE
3252
3253menu "Power management options"
3254
3255config ARCH_HIBERNATION_POSSIBLE
3256	def_bool y
3257	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3258
3259config ARCH_SUSPEND_POSSIBLE
3260	def_bool y
3261	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3262
3263source "kernel/power/Kconfig"
3264
3265endmenu
3266
3267config MIPS_EXTERNAL_TIMER
3268	bool
3269
3270menu "CPU Power Management"
3271
3272if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3273source "drivers/cpufreq/Kconfig"
3274endif
3275
3276source "drivers/cpuidle/Kconfig"
3277
3278endmenu
3279
3280source "drivers/firmware/Kconfig"
3281
3282source "arch/mips/kvm/Kconfig"
3283
3284source "arch/mips/vdso/Kconfig"
3285