xref: /openbmc/linux/arch/mips/Kconfig (revision 4bb1eb3c)
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 SWAP_IO_SPACE if CPU_BIG_ENDIAN
881	select SYS_HAS_CPU_R4X00
882	select SYS_HAS_CPU_R5000
883	select SYS_HAS_CPU_R10000
884	select R5000_CPU_SCACHE
885	select SYS_HAS_EARLY_PRINTK
886	select SYS_SUPPORTS_32BIT_KERNEL
887	select SYS_SUPPORTS_64BIT_KERNEL
888	select SYS_SUPPORTS_BIG_ENDIAN
889	select SYS_SUPPORTS_HIGHMEM
890	select SYS_SUPPORTS_LITTLE_ENDIAN
891	help
892	  The SNI RM200/300/400 are MIPS-based machines manufactured by
893	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
894	  Technology and now in turn merged with Fujitsu.  Say Y here to
895	  support this machine type.
896
897config MACH_TX39XX
898	bool "Toshiba TX39 series based machines"
899
900config MACH_TX49XX
901	bool "Toshiba TX49 series based machines"
902
903config MIKROTIK_RB532
904	bool "Mikrotik RB532 boards"
905	select CEVT_R4K
906	select CSRC_R4K
907	select DMA_NONCOHERENT
908	select HAVE_PCI
909	select IRQ_MIPS_CPU
910	select SYS_HAS_CPU_MIPS32_R1
911	select SYS_SUPPORTS_32BIT_KERNEL
912	select SYS_SUPPORTS_LITTLE_ENDIAN
913	select SWAP_IO_SPACE
914	select BOOT_RAW
915	select GPIOLIB
916	select MIPS_L1_CACHE_SHIFT_4
917	help
918	  Support the Mikrotik(tm) RouterBoard 532 series,
919	  based on the IDT RC32434 SoC.
920
921config CAVIUM_OCTEON_SOC
922	bool "Cavium Networks Octeon SoC based boards"
923	select CEVT_R4K
924	select ARCH_HAS_PHYS_TO_DMA
925	select HAVE_RAPIDIO
926	select PHYS_ADDR_T_64BIT
927	select SYS_SUPPORTS_64BIT_KERNEL
928	select SYS_SUPPORTS_BIG_ENDIAN
929	select EDAC_SUPPORT
930	select EDAC_ATOMIC_SCRUB
931	select SYS_SUPPORTS_LITTLE_ENDIAN
932	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
933	select SYS_HAS_EARLY_PRINTK
934	select SYS_HAS_CPU_CAVIUM_OCTEON
935	select HAVE_PCI
936	select HAVE_PLAT_DELAY
937	select HAVE_PLAT_FW_INIT_CMDLINE
938	select HAVE_PLAT_MEMCPY
939	select ZONE_DMA32
940	select HOLES_IN_ZONE
941	select GPIOLIB
942	select USE_OF
943	select ARCH_SPARSEMEM_ENABLE
944	select SYS_SUPPORTS_SMP
945	select NR_CPUS_DEFAULT_64
946	select MIPS_NR_CPU_NR_MAP_1024
947	select BUILTIN_DTB
948	select MTD_COMPLEX_MAPPINGS
949	select SWIOTLB
950	select SYS_SUPPORTS_RELOCATABLE
951	help
952	  This option supports all of the Octeon reference boards from Cavium
953	  Networks. It builds a kernel that dynamically determines the Octeon
954	  CPU type and supports all known board reference implementations.
955	  Some of the supported boards are:
956		EBT3000
957		EBH3000
958		EBH3100
959		Thunder
960		Kodama
961		Hikari
962	  Say Y here for most Octeon reference boards.
963
964config NLM_XLR_BOARD
965	bool "Netlogic XLR/XLS based systems"
966	select BOOT_ELF32
967	select NLM_COMMON
968	select SYS_HAS_CPU_XLR
969	select SYS_SUPPORTS_SMP
970	select HAVE_PCI
971	select SWAP_IO_SPACE
972	select SYS_SUPPORTS_32BIT_KERNEL
973	select SYS_SUPPORTS_64BIT_KERNEL
974	select PHYS_ADDR_T_64BIT
975	select SYS_SUPPORTS_BIG_ENDIAN
976	select SYS_SUPPORTS_HIGHMEM
977	select NR_CPUS_DEFAULT_32
978	select CEVT_R4K
979	select CSRC_R4K
980	select IRQ_MIPS_CPU
981	select ZONE_DMA32 if 64BIT
982	select SYNC_R4K
983	select SYS_HAS_EARLY_PRINTK
984	select SYS_SUPPORTS_ZBOOT
985	select SYS_SUPPORTS_ZBOOT_UART16550
986	help
987	  Support for systems based on Netlogic XLR and XLS processors.
988	  Say Y here if you have a XLR or XLS based board.
989
990config NLM_XLP_BOARD
991	bool "Netlogic XLP based systems"
992	select BOOT_ELF32
993	select NLM_COMMON
994	select SYS_HAS_CPU_XLP
995	select SYS_SUPPORTS_SMP
996	select HAVE_PCI
997	select SYS_SUPPORTS_32BIT_KERNEL
998	select SYS_SUPPORTS_64BIT_KERNEL
999	select PHYS_ADDR_T_64BIT
1000	select GPIOLIB
1001	select SYS_SUPPORTS_BIG_ENDIAN
1002	select SYS_SUPPORTS_LITTLE_ENDIAN
1003	select SYS_SUPPORTS_HIGHMEM
1004	select NR_CPUS_DEFAULT_32
1005	select CEVT_R4K
1006	select CSRC_R4K
1007	select IRQ_MIPS_CPU
1008	select ZONE_DMA32 if 64BIT
1009	select SYNC_R4K
1010	select SYS_HAS_EARLY_PRINTK
1011	select USE_OF
1012	select SYS_SUPPORTS_ZBOOT
1013	select SYS_SUPPORTS_ZBOOT_UART16550
1014	help
1015	  This board is based on Netlogic XLP Processor.
1016	  Say Y here if you have a XLP based board.
1017
1018endchoice
1019
1020source "arch/mips/alchemy/Kconfig"
1021source "arch/mips/ath25/Kconfig"
1022source "arch/mips/ath79/Kconfig"
1023source "arch/mips/bcm47xx/Kconfig"
1024source "arch/mips/bcm63xx/Kconfig"
1025source "arch/mips/bmips/Kconfig"
1026source "arch/mips/generic/Kconfig"
1027source "arch/mips/jazz/Kconfig"
1028source "arch/mips/jz4740/Kconfig"
1029source "arch/mips/lantiq/Kconfig"
1030source "arch/mips/pic32/Kconfig"
1031source "arch/mips/pistachio/Kconfig"
1032source "arch/mips/ralink/Kconfig"
1033source "arch/mips/sgi-ip27/Kconfig"
1034source "arch/mips/sibyte/Kconfig"
1035source "arch/mips/txx9/Kconfig"
1036source "arch/mips/vr41xx/Kconfig"
1037source "arch/mips/cavium-octeon/Kconfig"
1038source "arch/mips/loongson2ef/Kconfig"
1039source "arch/mips/loongson32/Kconfig"
1040source "arch/mips/loongson64/Kconfig"
1041source "arch/mips/netlogic/Kconfig"
1042
1043endmenu
1044
1045config GENERIC_HWEIGHT
1046	bool
1047	default y
1048
1049config GENERIC_CALIBRATE_DELAY
1050	bool
1051	default y
1052
1053config SCHED_OMIT_FRAME_POINTER
1054	bool
1055	default y
1056
1057#
1058# Select some configuration options automatically based on user selections.
1059#
1060config FW_ARC
1061	bool
1062
1063config ARCH_MAY_HAVE_PC_FDC
1064	bool
1065
1066config BOOT_RAW
1067	bool
1068
1069config CEVT_BCM1480
1070	bool
1071
1072config CEVT_DS1287
1073	bool
1074
1075config CEVT_GT641XX
1076	bool
1077
1078config CEVT_R4K
1079	bool
1080
1081config CEVT_SB1250
1082	bool
1083
1084config CEVT_TXX9
1085	bool
1086
1087config CSRC_BCM1480
1088	bool
1089
1090config CSRC_IOASIC
1091	bool
1092
1093config CSRC_R4K
1094	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1095	bool
1096
1097config CSRC_SB1250
1098	bool
1099
1100config MIPS_CLOCK_VSYSCALL
1101	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1102
1103config GPIO_TXX9
1104	select GPIOLIB
1105	bool
1106
1107config FW_CFE
1108	bool
1109
1110config ARCH_SUPPORTS_UPROBES
1111	bool
1112
1113config DMA_MAYBE_COHERENT
1114	select ARCH_HAS_DMA_COHERENCE_H
1115	select DMA_NONCOHERENT
1116	bool
1117
1118config DMA_PERDEV_COHERENT
1119	bool
1120	select ARCH_HAS_SETUP_DMA_OPS
1121	select DMA_NONCOHERENT
1122
1123config DMA_NONCOHERENT
1124	bool
1125	#
1126	# MIPS allows mixing "slightly different" Cacheability and Coherency
1127	# Attribute bits.  It is believed that the uncached access through
1128	# KSEG1 and the implementation specific "uncached accelerated" used
1129	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1130	# significant advantages.
1131	#
1132	select ARCH_HAS_DMA_WRITE_COMBINE
1133	select ARCH_HAS_DMA_PREP_COHERENT
1134	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1135	select ARCH_HAS_DMA_SET_UNCACHED
1136	select DMA_NONCOHERENT_MMAP
1137	select DMA_NONCOHERENT_CACHE_SYNC
1138	select NEED_DMA_MAP_STATE
1139
1140config SYS_HAS_EARLY_PRINTK
1141	bool
1142
1143config SYS_SUPPORTS_HOTPLUG_CPU
1144	bool
1145
1146config MIPS_BONITO64
1147	bool
1148
1149config MIPS_MSC
1150	bool
1151
1152config SYNC_R4K
1153	bool
1154
1155config NO_IOPORT_MAP
1156	def_bool n
1157
1158config GENERIC_CSUM
1159	def_bool CPU_NO_LOAD_STORE_LR
1160
1161config GENERIC_ISA_DMA
1162	bool
1163	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1164	select ISA_DMA_API
1165
1166config GENERIC_ISA_DMA_SUPPORT_BROKEN
1167	bool
1168	select GENERIC_ISA_DMA
1169
1170config HAVE_PLAT_DELAY
1171	bool
1172
1173config HAVE_PLAT_FW_INIT_CMDLINE
1174	bool
1175
1176config HAVE_PLAT_MEMCPY
1177	bool
1178
1179config ISA_DMA_API
1180	bool
1181
1182config HOLES_IN_ZONE
1183	bool
1184
1185config SYS_SUPPORTS_RELOCATABLE
1186	bool
1187	help
1188	  Selected if the platform supports relocating the kernel.
1189	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1190	  to allow access to command line and entropy sources.
1191
1192config MIPS_CBPF_JIT
1193	def_bool y
1194	depends on BPF_JIT && HAVE_CBPF_JIT
1195
1196config MIPS_EBPF_JIT
1197	def_bool y
1198	depends on BPF_JIT && HAVE_EBPF_JIT
1199
1200
1201#
1202# Endianness selection.  Sufficiently obscure so many users don't know what to
1203# answer,so we try hard to limit the available choices.  Also the use of a
1204# choice statement should be more obvious to the user.
1205#
1206choice
1207	prompt "Endianness selection"
1208	help
1209	  Some MIPS machines can be configured for either little or big endian
1210	  byte order. These modes require different kernels and a different
1211	  Linux distribution.  In general there is one preferred byteorder for a
1212	  particular system but some systems are just as commonly used in the
1213	  one or the other endianness.
1214
1215config CPU_BIG_ENDIAN
1216	bool "Big endian"
1217	depends on SYS_SUPPORTS_BIG_ENDIAN
1218
1219config CPU_LITTLE_ENDIAN
1220	bool "Little endian"
1221	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1222
1223endchoice
1224
1225config EXPORT_UASM
1226	bool
1227
1228config SYS_SUPPORTS_APM_EMULATION
1229	bool
1230
1231config SYS_SUPPORTS_BIG_ENDIAN
1232	bool
1233
1234config SYS_SUPPORTS_LITTLE_ENDIAN
1235	bool
1236
1237config SYS_SUPPORTS_HUGETLBFS
1238	bool
1239	depends on CPU_SUPPORTS_HUGEPAGES
1240	default y
1241
1242config MIPS_HUGE_TLB_SUPPORT
1243	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1244
1245config IRQ_CPU_RM7K
1246	bool
1247
1248config IRQ_MSP_SLP
1249	bool
1250
1251config IRQ_MSP_CIC
1252	bool
1253
1254config IRQ_TXX9
1255	bool
1256
1257config IRQ_GT641XX
1258	bool
1259
1260config PCI_GT64XXX_PCI0
1261	bool
1262
1263config PCI_XTALK_BRIDGE
1264	bool
1265
1266config NO_EXCEPT_FILL
1267	bool
1268
1269config SOC_PNX833X
1270	bool
1271	select CEVT_R4K
1272	select CSRC_R4K
1273	select IRQ_MIPS_CPU
1274	select DMA_NONCOHERENT
1275	select SYS_HAS_CPU_MIPS32_R2
1276	select SYS_SUPPORTS_32BIT_KERNEL
1277	select SYS_SUPPORTS_LITTLE_ENDIAN
1278	select SYS_SUPPORTS_BIG_ENDIAN
1279	select SYS_SUPPORTS_MIPS16
1280	select CPU_MIPSR2_IRQ_VI
1281
1282config SOC_PNX8335
1283	bool
1284	select SOC_PNX833X
1285
1286config MIPS_SPRAM
1287	bool
1288
1289config SWAP_IO_SPACE
1290	bool
1291
1292config SGI_HAS_INDYDOG
1293	bool
1294
1295config SGI_HAS_HAL2
1296	bool
1297
1298config SGI_HAS_SEEQ
1299	bool
1300
1301config SGI_HAS_WD93
1302	bool
1303
1304config SGI_HAS_ZILOG
1305	bool
1306
1307config SGI_HAS_I8042
1308	bool
1309
1310config DEFAULT_SGI_PARTITION
1311	bool
1312
1313config FW_ARC32
1314	bool
1315
1316config FW_SNIPROM
1317	bool
1318
1319config BOOT_ELF32
1320	bool
1321
1322config MIPS_L1_CACHE_SHIFT_4
1323	bool
1324
1325config MIPS_L1_CACHE_SHIFT_5
1326	bool
1327
1328config MIPS_L1_CACHE_SHIFT_6
1329	bool
1330
1331config MIPS_L1_CACHE_SHIFT_7
1332	bool
1333
1334config MIPS_L1_CACHE_SHIFT
1335	int
1336	default "7" if MIPS_L1_CACHE_SHIFT_7
1337	default "6" if MIPS_L1_CACHE_SHIFT_6
1338	default "5" if MIPS_L1_CACHE_SHIFT_5
1339	default "4" if MIPS_L1_CACHE_SHIFT_4
1340	default "5"
1341
1342config ARC_CMDLINE_ONLY
1343	bool
1344
1345config ARC_CONSOLE
1346	bool "ARC console support"
1347	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1348
1349config ARC_MEMORY
1350	bool
1351
1352config ARC_PROMLIB
1353	bool
1354
1355config FW_ARC64
1356	bool
1357
1358config BOOT_ELF64
1359	bool
1360
1361menu "CPU selection"
1362
1363choice
1364	prompt "CPU type"
1365	default CPU_R4X00
1366
1367config CPU_LOONGSON64
1368	bool "Loongson 64-bit CPU"
1369	depends on SYS_HAS_CPU_LOONGSON64
1370	select ARCH_HAS_PHYS_TO_DMA
1371	select CPU_MIPSR2
1372	select CPU_HAS_PREFETCH
1373	select CPU_SUPPORTS_64BIT_KERNEL
1374	select CPU_SUPPORTS_HIGHMEM
1375	select CPU_SUPPORTS_HUGEPAGES
1376	select CPU_SUPPORTS_MSA
1377	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1378	select CPU_MIPSR2_IRQ_VI
1379	select WEAK_ORDERING
1380	select WEAK_REORDERING_BEYOND_LLSC
1381	select MIPS_ASID_BITS_VARIABLE
1382	select MIPS_PGD_C0_CONTEXT
1383	select MIPS_L1_CACHE_SHIFT_6
1384	select GPIOLIB
1385	select SWIOTLB
1386	select HAVE_KVM
1387	help
1388		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1389		cores implements the MIPS64R2 instruction set with many extensions,
1390		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1391		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1392		Loongson-2E/2F is not covered here and will be removed in future.
1393
1394config LOONGSON3_ENHANCEMENT
1395	bool "New Loongson-3 CPU Enhancements"
1396	default n
1397	depends on CPU_LOONGSON64
1398	help
1399	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1400	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1401	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1402	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1403	  Fast TLB refill support, etc.
1404
1405	  This option enable those enhancements which are not probed at run
1406	  time. If you want a generic kernel to run on all Loongson 3 machines,
1407	  please say 'N' here. If you want a high-performance kernel to run on
1408	  new Loongson-3 machines only, please say 'Y' here.
1409
1410config CPU_LOONGSON3_WORKAROUNDS
1411	bool "Old Loongson-3 LLSC Workarounds"
1412	default y if SMP
1413	depends on CPU_LOONGSON64
1414	help
1415	  Loongson-3 processors have the llsc issues which require workarounds.
1416	  Without workarounds the system may hang unexpectedly.
1417
1418	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1419	  The workarounds have no significant side effect on them but may
1420	  decrease the performance of the system so this option should be
1421	  disabled unless the kernel is intended to be run on old systems.
1422
1423	  If unsure, please say Y.
1424
1425config CPU_LOONGSON3_CPUCFG_EMULATION
1426	bool "Emulate the CPUCFG instruction on older Loongson cores"
1427	default y
1428	depends on CPU_LOONGSON64
1429	help
1430	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1431	  userland to query CPU capabilities, much like CPUID on x86. This
1432	  option provides emulation of the instruction on older Loongson
1433	  cores, back to Loongson-3A1000.
1434
1435	  If unsure, please say Y.
1436
1437config CPU_LOONGSON2E
1438	bool "Loongson 2E"
1439	depends on SYS_HAS_CPU_LOONGSON2E
1440	select CPU_LOONGSON2EF
1441	help
1442	  The Loongson 2E processor implements the MIPS III instruction set
1443	  with many extensions.
1444
1445	  It has an internal FPGA northbridge, which is compatible to
1446	  bonito64.
1447
1448config CPU_LOONGSON2F
1449	bool "Loongson 2F"
1450	depends on SYS_HAS_CPU_LOONGSON2F
1451	select CPU_LOONGSON2EF
1452	select GPIOLIB
1453	help
1454	  The Loongson 2F processor implements the MIPS III instruction set
1455	  with many extensions.
1456
1457	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1458	  have a similar programming interface with FPGA northbridge used in
1459	  Loongson2E.
1460
1461config CPU_LOONGSON1B
1462	bool "Loongson 1B"
1463	depends on SYS_HAS_CPU_LOONGSON1B
1464	select CPU_LOONGSON32
1465	select LEDS_GPIO_REGISTER
1466	help
1467	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1468	  Release 1 instruction set and part of the MIPS32 Release 2
1469	  instruction set.
1470
1471config CPU_LOONGSON1C
1472	bool "Loongson 1C"
1473	depends on SYS_HAS_CPU_LOONGSON1C
1474	select CPU_LOONGSON32
1475	select LEDS_GPIO_REGISTER
1476	help
1477	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1478	  Release 1 instruction set and part of the MIPS32 Release 2
1479	  instruction set.
1480
1481config CPU_MIPS32_R1
1482	bool "MIPS32 Release 1"
1483	depends on SYS_HAS_CPU_MIPS32_R1
1484	select CPU_HAS_PREFETCH
1485	select CPU_SUPPORTS_32BIT_KERNEL
1486	select CPU_SUPPORTS_HIGHMEM
1487	help
1488	  Choose this option to build a kernel for release 1 or later of the
1489	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1490	  MIPS processor are based on a MIPS32 processor.  If you know the
1491	  specific type of processor in your system, choose those that one
1492	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1493	  Release 2 of the MIPS32 architecture is available since several
1494	  years so chances are you even have a MIPS32 Release 2 processor
1495	  in which case you should choose CPU_MIPS32_R2 instead for better
1496	  performance.
1497
1498config CPU_MIPS32_R2
1499	bool "MIPS32 Release 2"
1500	depends on SYS_HAS_CPU_MIPS32_R2
1501	select CPU_HAS_PREFETCH
1502	select CPU_SUPPORTS_32BIT_KERNEL
1503	select CPU_SUPPORTS_HIGHMEM
1504	select CPU_SUPPORTS_MSA
1505	select HAVE_KVM
1506	help
1507	  Choose this option to build a kernel for release 2 or later of the
1508	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1509	  MIPS processor are based on a MIPS32 processor.  If you know the
1510	  specific type of processor in your system, choose those that one
1511	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1512
1513config CPU_MIPS32_R5
1514	bool "MIPS32 Release 5"
1515	depends on SYS_HAS_CPU_MIPS32_R5
1516	select CPU_HAS_PREFETCH
1517	select CPU_SUPPORTS_32BIT_KERNEL
1518	select CPU_SUPPORTS_HIGHMEM
1519	select CPU_SUPPORTS_MSA
1520	select HAVE_KVM
1521	select MIPS_O32_FP64_SUPPORT
1522	help
1523	  Choose this option to build a kernel for release 5 or later of the
1524	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1525	  family, are based on a MIPS32r5 processor. If you own an older
1526	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1527
1528config CPU_MIPS32_R6
1529	bool "MIPS32 Release 6"
1530	depends on SYS_HAS_CPU_MIPS32_R6
1531	select CPU_HAS_PREFETCH
1532	select CPU_NO_LOAD_STORE_LR
1533	select CPU_SUPPORTS_32BIT_KERNEL
1534	select CPU_SUPPORTS_HIGHMEM
1535	select CPU_SUPPORTS_MSA
1536	select HAVE_KVM
1537	select MIPS_O32_FP64_SUPPORT
1538	help
1539	  Choose this option to build a kernel for release 6 or later of the
1540	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1541	  family, are based on a MIPS32r6 processor. If you own an older
1542	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1543
1544config CPU_MIPS64_R1
1545	bool "MIPS64 Release 1"
1546	depends on SYS_HAS_CPU_MIPS64_R1
1547	select CPU_HAS_PREFETCH
1548	select CPU_SUPPORTS_32BIT_KERNEL
1549	select CPU_SUPPORTS_64BIT_KERNEL
1550	select CPU_SUPPORTS_HIGHMEM
1551	select CPU_SUPPORTS_HUGEPAGES
1552	help
1553	  Choose this option to build a kernel for release 1 or later of the
1554	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1555	  MIPS processor are based on a MIPS64 processor.  If you know the
1556	  specific type of processor in your system, choose those that one
1557	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1558	  Release 2 of the MIPS64 architecture is available since several
1559	  years so chances are you even have a MIPS64 Release 2 processor
1560	  in which case you should choose CPU_MIPS64_R2 instead for better
1561	  performance.
1562
1563config CPU_MIPS64_R2
1564	bool "MIPS64 Release 2"
1565	depends on SYS_HAS_CPU_MIPS64_R2
1566	select CPU_HAS_PREFETCH
1567	select CPU_SUPPORTS_32BIT_KERNEL
1568	select CPU_SUPPORTS_64BIT_KERNEL
1569	select CPU_SUPPORTS_HIGHMEM
1570	select CPU_SUPPORTS_HUGEPAGES
1571	select CPU_SUPPORTS_MSA
1572	select HAVE_KVM
1573	help
1574	  Choose this option to build a kernel for release 2 or later of the
1575	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1576	  MIPS processor are based on a MIPS64 processor.  If you know the
1577	  specific type of processor in your system, choose those that one
1578	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1579
1580config CPU_MIPS64_R5
1581	bool "MIPS64 Release 5"
1582	depends on SYS_HAS_CPU_MIPS64_R5
1583	select CPU_HAS_PREFETCH
1584	select CPU_SUPPORTS_32BIT_KERNEL
1585	select CPU_SUPPORTS_64BIT_KERNEL
1586	select CPU_SUPPORTS_HIGHMEM
1587	select CPU_SUPPORTS_HUGEPAGES
1588	select CPU_SUPPORTS_MSA
1589	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1590	select HAVE_KVM
1591	help
1592	  Choose this option to build a kernel for release 5 or later of the
1593	  MIPS64 architecture.  This is a intermediate MIPS architecture
1594	  release partly implementing release 6 features. Though there is no
1595	  any hardware known to be based on this release.
1596
1597config CPU_MIPS64_R6
1598	bool "MIPS64 Release 6"
1599	depends on SYS_HAS_CPU_MIPS64_R6
1600	select CPU_HAS_PREFETCH
1601	select CPU_NO_LOAD_STORE_LR
1602	select CPU_SUPPORTS_32BIT_KERNEL
1603	select CPU_SUPPORTS_64BIT_KERNEL
1604	select CPU_SUPPORTS_HIGHMEM
1605	select CPU_SUPPORTS_HUGEPAGES
1606	select CPU_SUPPORTS_MSA
1607	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1608	select HAVE_KVM
1609	help
1610	  Choose this option to build a kernel for release 6 or later of the
1611	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1612	  family, are based on a MIPS64r6 processor. If you own an older
1613	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1614
1615config CPU_P5600
1616	bool "MIPS Warrior P5600"
1617	depends on SYS_HAS_CPU_P5600
1618	select CPU_HAS_PREFETCH
1619	select CPU_SUPPORTS_32BIT_KERNEL
1620	select CPU_SUPPORTS_HIGHMEM
1621	select CPU_SUPPORTS_MSA
1622	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1623	select CPU_SUPPORTS_CPUFREQ
1624	select CPU_MIPSR2_IRQ_VI
1625	select CPU_MIPSR2_IRQ_EI
1626	select HAVE_KVM
1627	select MIPS_O32_FP64_SUPPORT
1628	help
1629	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1630	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1631	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1632	  level features like up to six P5600 calculation cores, CM2 with L2
1633	  cache, IOCU/IOMMU (though might be unused depending on the system-
1634	  specific IP core configuration), GIC, CPC, virtualisation module,
1635	  eJTAG and PDtrace.
1636
1637config CPU_R3000
1638	bool "R3000"
1639	depends on SYS_HAS_CPU_R3000
1640	select CPU_HAS_WB
1641	select CPU_R3K_TLB
1642	select CPU_SUPPORTS_32BIT_KERNEL
1643	select CPU_SUPPORTS_HIGHMEM
1644	help
1645	  Please make sure to pick the right CPU type. Linux/MIPS is not
1646	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1647	  *not* work on R4000 machines and vice versa.  However, since most
1648	  of the supported machines have an R4000 (or similar) CPU, R4x00
1649	  might be a safe bet.  If the resulting kernel does not work,
1650	  try to recompile with R3000.
1651
1652config CPU_TX39XX
1653	bool "R39XX"
1654	depends on SYS_HAS_CPU_TX39XX
1655	select CPU_SUPPORTS_32BIT_KERNEL
1656	select CPU_R3K_TLB
1657
1658config CPU_VR41XX
1659	bool "R41xx"
1660	depends on SYS_HAS_CPU_VR41XX
1661	select CPU_SUPPORTS_32BIT_KERNEL
1662	select CPU_SUPPORTS_64BIT_KERNEL
1663	help
1664	  The options selects support for the NEC VR4100 series of processors.
1665	  Only choose this option if you have one of these processors as a
1666	  kernel built with this option will not run on any other type of
1667	  processor or vice versa.
1668
1669config CPU_R4X00
1670	bool "R4x00"
1671	depends on SYS_HAS_CPU_R4X00
1672	select CPU_SUPPORTS_32BIT_KERNEL
1673	select CPU_SUPPORTS_64BIT_KERNEL
1674	select CPU_SUPPORTS_HUGEPAGES
1675	help
1676	  MIPS Technologies R4000-series processors other than 4300, including
1677	  the R4000, R4400, R4600, and 4700.
1678
1679config CPU_TX49XX
1680	bool "R49XX"
1681	depends on SYS_HAS_CPU_TX49XX
1682	select CPU_HAS_PREFETCH
1683	select CPU_SUPPORTS_32BIT_KERNEL
1684	select CPU_SUPPORTS_64BIT_KERNEL
1685	select CPU_SUPPORTS_HUGEPAGES
1686
1687config CPU_R5000
1688	bool "R5000"
1689	depends on SYS_HAS_CPU_R5000
1690	select CPU_SUPPORTS_32BIT_KERNEL
1691	select CPU_SUPPORTS_64BIT_KERNEL
1692	select CPU_SUPPORTS_HUGEPAGES
1693	help
1694	  MIPS Technologies R5000-series processors other than the Nevada.
1695
1696config CPU_R5500
1697	bool "R5500"
1698	depends on SYS_HAS_CPU_R5500
1699	select CPU_SUPPORTS_32BIT_KERNEL
1700	select CPU_SUPPORTS_64BIT_KERNEL
1701	select CPU_SUPPORTS_HUGEPAGES
1702	help
1703	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1704	  instruction set.
1705
1706config CPU_NEVADA
1707	bool "RM52xx"
1708	depends on SYS_HAS_CPU_NEVADA
1709	select CPU_SUPPORTS_32BIT_KERNEL
1710	select CPU_SUPPORTS_64BIT_KERNEL
1711	select CPU_SUPPORTS_HUGEPAGES
1712	help
1713	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1714
1715config CPU_R10000
1716	bool "R10000"
1717	depends on SYS_HAS_CPU_R10000
1718	select CPU_HAS_PREFETCH
1719	select CPU_SUPPORTS_32BIT_KERNEL
1720	select CPU_SUPPORTS_64BIT_KERNEL
1721	select CPU_SUPPORTS_HIGHMEM
1722	select CPU_SUPPORTS_HUGEPAGES
1723	help
1724	  MIPS Technologies R10000-series processors.
1725
1726config CPU_RM7000
1727	bool "RM7000"
1728	depends on SYS_HAS_CPU_RM7000
1729	select CPU_HAS_PREFETCH
1730	select CPU_SUPPORTS_32BIT_KERNEL
1731	select CPU_SUPPORTS_64BIT_KERNEL
1732	select CPU_SUPPORTS_HIGHMEM
1733	select CPU_SUPPORTS_HUGEPAGES
1734
1735config CPU_SB1
1736	bool "SB1"
1737	depends on SYS_HAS_CPU_SB1
1738	select CPU_SUPPORTS_32BIT_KERNEL
1739	select CPU_SUPPORTS_64BIT_KERNEL
1740	select CPU_SUPPORTS_HIGHMEM
1741	select CPU_SUPPORTS_HUGEPAGES
1742	select WEAK_ORDERING
1743
1744config CPU_CAVIUM_OCTEON
1745	bool "Cavium Octeon processor"
1746	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1747	select CPU_HAS_PREFETCH
1748	select CPU_SUPPORTS_64BIT_KERNEL
1749	select WEAK_ORDERING
1750	select CPU_SUPPORTS_HIGHMEM
1751	select CPU_SUPPORTS_HUGEPAGES
1752	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1753	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1754	select MIPS_L1_CACHE_SHIFT_7
1755	select HAVE_KVM
1756	help
1757	  The Cavium Octeon processor is a highly integrated chip containing
1758	  many ethernet hardware widgets for networking tasks. The processor
1759	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1760	  Full details can be found at http://www.caviumnetworks.com.
1761
1762config CPU_BMIPS
1763	bool "Broadcom BMIPS"
1764	depends on SYS_HAS_CPU_BMIPS
1765	select CPU_MIPS32
1766	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1767	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1768	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1769	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1770	select CPU_SUPPORTS_32BIT_KERNEL
1771	select DMA_NONCOHERENT
1772	select IRQ_MIPS_CPU
1773	select SWAP_IO_SPACE
1774	select WEAK_ORDERING
1775	select CPU_SUPPORTS_HIGHMEM
1776	select CPU_HAS_PREFETCH
1777	select CPU_SUPPORTS_CPUFREQ
1778	select MIPS_EXTERNAL_TIMER
1779	help
1780	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1781
1782config CPU_XLR
1783	bool "Netlogic XLR SoC"
1784	depends on SYS_HAS_CPU_XLR
1785	select CPU_SUPPORTS_32BIT_KERNEL
1786	select CPU_SUPPORTS_64BIT_KERNEL
1787	select CPU_SUPPORTS_HIGHMEM
1788	select CPU_SUPPORTS_HUGEPAGES
1789	select WEAK_ORDERING
1790	select WEAK_REORDERING_BEYOND_LLSC
1791	help
1792	  Netlogic Microsystems XLR/XLS processors.
1793
1794config CPU_XLP
1795	bool "Netlogic XLP SoC"
1796	depends on SYS_HAS_CPU_XLP
1797	select CPU_SUPPORTS_32BIT_KERNEL
1798	select CPU_SUPPORTS_64BIT_KERNEL
1799	select CPU_SUPPORTS_HIGHMEM
1800	select WEAK_ORDERING
1801	select WEAK_REORDERING_BEYOND_LLSC
1802	select CPU_HAS_PREFETCH
1803	select CPU_MIPSR2
1804	select CPU_SUPPORTS_HUGEPAGES
1805	select MIPS_ASID_BITS_VARIABLE
1806	help
1807	  Netlogic Microsystems XLP processors.
1808endchoice
1809
1810config CPU_MIPS32_3_5_FEATURES
1811	bool "MIPS32 Release 3.5 Features"
1812	depends on SYS_HAS_CPU_MIPS32_R3_5
1813	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1814		   CPU_P5600
1815	help
1816	  Choose this option to build a kernel for release 2 or later of the
1817	  MIPS32 architecture including features from the 3.5 release such as
1818	  support for Enhanced Virtual Addressing (EVA).
1819
1820config CPU_MIPS32_3_5_EVA
1821	bool "Enhanced Virtual Addressing (EVA)"
1822	depends on CPU_MIPS32_3_5_FEATURES
1823	select EVA
1824	default y
1825	help
1826	  Choose this option if you want to enable the Enhanced Virtual
1827	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1828	  One of its primary benefits is an increase in the maximum size
1829	  of lowmem (up to 3GB). If unsure, say 'N' here.
1830
1831config CPU_MIPS32_R5_FEATURES
1832	bool "MIPS32 Release 5 Features"
1833	depends on SYS_HAS_CPU_MIPS32_R5
1834	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1835	help
1836	  Choose this option to build a kernel for release 2 or later of the
1837	  MIPS32 architecture including features from release 5 such as
1838	  support for Extended Physical Addressing (XPA).
1839
1840config CPU_MIPS32_R5_XPA
1841	bool "Extended Physical Addressing (XPA)"
1842	depends on CPU_MIPS32_R5_FEATURES
1843	depends on !EVA
1844	depends on !PAGE_SIZE_4KB
1845	depends on SYS_SUPPORTS_HIGHMEM
1846	select XPA
1847	select HIGHMEM
1848	select PHYS_ADDR_T_64BIT
1849	default n
1850	help
1851	  Choose this option if you want to enable the Extended Physical
1852	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1853	  benefit is to increase physical addressing equal to or greater
1854	  than 40 bits. Note that this has the side effect of turning on
1855	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1856	  If unsure, say 'N' here.
1857
1858if CPU_LOONGSON2F
1859config CPU_NOP_WORKAROUNDS
1860	bool
1861
1862config CPU_JUMP_WORKAROUNDS
1863	bool
1864
1865config CPU_LOONGSON2F_WORKAROUNDS
1866	bool "Loongson 2F Workarounds"
1867	default y
1868	select CPU_NOP_WORKAROUNDS
1869	select CPU_JUMP_WORKAROUNDS
1870	help
1871	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1872	  require workarounds.  Without workarounds the system may hang
1873	  unexpectedly.  For more information please refer to the gas
1874	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1875
1876	  Loongson 2F03 and later have fixed these issues and no workarounds
1877	  are needed.  The workarounds have no significant side effect on them
1878	  but may decrease the performance of the system so this option should
1879	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1880	  systems.
1881
1882	  If unsure, please say Y.
1883endif # CPU_LOONGSON2F
1884
1885config SYS_SUPPORTS_ZBOOT
1886	bool
1887	select HAVE_KERNEL_GZIP
1888	select HAVE_KERNEL_BZIP2
1889	select HAVE_KERNEL_LZ4
1890	select HAVE_KERNEL_LZMA
1891	select HAVE_KERNEL_LZO
1892	select HAVE_KERNEL_XZ
1893
1894config SYS_SUPPORTS_ZBOOT_UART16550
1895	bool
1896	select SYS_SUPPORTS_ZBOOT
1897
1898config SYS_SUPPORTS_ZBOOT_UART_PROM
1899	bool
1900	select SYS_SUPPORTS_ZBOOT
1901
1902config CPU_LOONGSON2EF
1903	bool
1904	select CPU_SUPPORTS_32BIT_KERNEL
1905	select CPU_SUPPORTS_64BIT_KERNEL
1906	select CPU_SUPPORTS_HIGHMEM
1907	select CPU_SUPPORTS_HUGEPAGES
1908	select ARCH_HAS_PHYS_TO_DMA
1909
1910config CPU_LOONGSON32
1911	bool
1912	select CPU_MIPS32
1913	select CPU_MIPSR2
1914	select CPU_HAS_PREFETCH
1915	select CPU_SUPPORTS_32BIT_KERNEL
1916	select CPU_SUPPORTS_HIGHMEM
1917	select CPU_SUPPORTS_CPUFREQ
1918
1919config CPU_BMIPS32_3300
1920	select SMP_UP if SMP
1921	bool
1922
1923config CPU_BMIPS4350
1924	bool
1925	select SYS_SUPPORTS_SMP
1926	select SYS_SUPPORTS_HOTPLUG_CPU
1927
1928config CPU_BMIPS4380
1929	bool
1930	select MIPS_L1_CACHE_SHIFT_6
1931	select SYS_SUPPORTS_SMP
1932	select SYS_SUPPORTS_HOTPLUG_CPU
1933	select CPU_HAS_RIXI
1934
1935config CPU_BMIPS5000
1936	bool
1937	select MIPS_CPU_SCACHE
1938	select MIPS_L1_CACHE_SHIFT_7
1939	select SYS_SUPPORTS_SMP
1940	select SYS_SUPPORTS_HOTPLUG_CPU
1941	select CPU_HAS_RIXI
1942
1943config SYS_HAS_CPU_LOONGSON64
1944	bool
1945	select CPU_SUPPORTS_CPUFREQ
1946	select CPU_HAS_RIXI
1947
1948config SYS_HAS_CPU_LOONGSON2E
1949	bool
1950
1951config SYS_HAS_CPU_LOONGSON2F
1952	bool
1953	select CPU_SUPPORTS_CPUFREQ
1954	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1955
1956config SYS_HAS_CPU_LOONGSON1B
1957	bool
1958
1959config SYS_HAS_CPU_LOONGSON1C
1960	bool
1961
1962config SYS_HAS_CPU_MIPS32_R1
1963	bool
1964
1965config SYS_HAS_CPU_MIPS32_R2
1966	bool
1967
1968config SYS_HAS_CPU_MIPS32_R3_5
1969	bool
1970
1971config SYS_HAS_CPU_MIPS32_R5
1972	bool
1973	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1974
1975config SYS_HAS_CPU_MIPS32_R6
1976	bool
1977	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1978
1979config SYS_HAS_CPU_MIPS64_R1
1980	bool
1981
1982config SYS_HAS_CPU_MIPS64_R2
1983	bool
1984
1985config SYS_HAS_CPU_MIPS64_R6
1986	bool
1987	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1988
1989config SYS_HAS_CPU_P5600
1990	bool
1991	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1992
1993config SYS_HAS_CPU_R3000
1994	bool
1995
1996config SYS_HAS_CPU_TX39XX
1997	bool
1998
1999config SYS_HAS_CPU_VR41XX
2000	bool
2001
2002config SYS_HAS_CPU_R4X00
2003	bool
2004
2005config SYS_HAS_CPU_TX49XX
2006	bool
2007
2008config SYS_HAS_CPU_R5000
2009	bool
2010
2011config SYS_HAS_CPU_R5500
2012	bool
2013
2014config SYS_HAS_CPU_NEVADA
2015	bool
2016
2017config SYS_HAS_CPU_R10000
2018	bool
2019	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2020
2021config SYS_HAS_CPU_RM7000
2022	bool
2023
2024config SYS_HAS_CPU_SB1
2025	bool
2026
2027config SYS_HAS_CPU_CAVIUM_OCTEON
2028	bool
2029
2030config SYS_HAS_CPU_BMIPS
2031	bool
2032
2033config SYS_HAS_CPU_BMIPS32_3300
2034	bool
2035	select SYS_HAS_CPU_BMIPS
2036
2037config SYS_HAS_CPU_BMIPS4350
2038	bool
2039	select SYS_HAS_CPU_BMIPS
2040
2041config SYS_HAS_CPU_BMIPS4380
2042	bool
2043	select SYS_HAS_CPU_BMIPS
2044
2045config SYS_HAS_CPU_BMIPS5000
2046	bool
2047	select SYS_HAS_CPU_BMIPS
2048	select ARCH_HAS_SYNC_DMA_FOR_CPU
2049
2050config SYS_HAS_CPU_XLR
2051	bool
2052
2053config SYS_HAS_CPU_XLP
2054	bool
2055
2056#
2057# CPU may reorder R->R, R->W, W->R, W->W
2058# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2059#
2060config WEAK_ORDERING
2061	bool
2062
2063#
2064# CPU may reorder reads and writes beyond LL/SC
2065# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2066#
2067config WEAK_REORDERING_BEYOND_LLSC
2068	bool
2069endmenu
2070
2071#
2072# These two indicate any level of the MIPS32 and MIPS64 architecture
2073#
2074config CPU_MIPS32
2075	bool
2076	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2077		     CPU_MIPS32_R6 || CPU_P5600
2078
2079config CPU_MIPS64
2080	bool
2081	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2082		     CPU_MIPS64_R6
2083
2084#
2085# These indicate the revision of the architecture
2086#
2087config CPU_MIPSR1
2088	bool
2089	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2090
2091config CPU_MIPSR2
2092	bool
2093	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2094	select CPU_HAS_RIXI
2095	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2096	select MIPS_SPRAM
2097
2098config CPU_MIPSR5
2099	bool
2100	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2101	select CPU_HAS_RIXI
2102	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2103	select MIPS_SPRAM
2104
2105config CPU_MIPSR6
2106	bool
2107	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2108	select CPU_HAS_RIXI
2109	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2110	select HAVE_ARCH_BITREVERSE
2111	select MIPS_ASID_BITS_VARIABLE
2112	select MIPS_CRC_SUPPORT
2113	select MIPS_SPRAM
2114
2115config TARGET_ISA_REV
2116	int
2117	default 1 if CPU_MIPSR1
2118	default 2 if CPU_MIPSR2
2119	default 5 if CPU_MIPSR5
2120	default 6 if CPU_MIPSR6
2121	default 0
2122	help
2123	  Reflects the ISA revision being targeted by the kernel build. This
2124	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2125
2126config EVA
2127	bool
2128
2129config XPA
2130	bool
2131
2132config SYS_SUPPORTS_32BIT_KERNEL
2133	bool
2134config SYS_SUPPORTS_64BIT_KERNEL
2135	bool
2136config CPU_SUPPORTS_32BIT_KERNEL
2137	bool
2138config CPU_SUPPORTS_64BIT_KERNEL
2139	bool
2140config CPU_SUPPORTS_CPUFREQ
2141	bool
2142config CPU_SUPPORTS_ADDRWINCFG
2143	bool
2144config CPU_SUPPORTS_HUGEPAGES
2145	bool
2146	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2147config MIPS_PGD_C0_CONTEXT
2148	bool
2149	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2150
2151#
2152# Set to y for ptrace access to watch registers.
2153#
2154config HARDWARE_WATCHPOINTS
2155	bool
2156	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2157
2158menu "Kernel type"
2159
2160choice
2161	prompt "Kernel code model"
2162	help
2163	  You should only select this option if you have a workload that
2164	  actually benefits from 64-bit processing or if your machine has
2165	  large memory.  You will only be presented a single option in this
2166	  menu if your system does not support both 32-bit and 64-bit kernels.
2167
2168config 32BIT
2169	bool "32-bit kernel"
2170	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2171	select TRAD_SIGNALS
2172	help
2173	  Select this option if you want to build a 32-bit kernel.
2174
2175config 64BIT
2176	bool "64-bit kernel"
2177	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2178	help
2179	  Select this option if you want to build a 64-bit kernel.
2180
2181endchoice
2182
2183config KVM_GUEST
2184	bool "KVM Guest Kernel"
2185	depends on CPU_MIPS32_R2
2186	depends on BROKEN_ON_SMP
2187	help
2188	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2189	  mode.
2190
2191config KVM_GUEST_TIMER_FREQ
2192	int "Count/Compare Timer Frequency (MHz)"
2193	depends on KVM_GUEST
2194	default 100
2195	help
2196	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2197	  emulation when determining guest CPU Frequency. Instead, the guest's
2198	  timer frequency is specified directly.
2199
2200config MIPS_VA_BITS_48
2201	bool "48 bits virtual memory"
2202	depends on 64BIT
2203	help
2204	  Support a maximum at least 48 bits of application virtual
2205	  memory.  Default is 40 bits or less, depending on the CPU.
2206	  For page sizes 16k and above, this option results in a small
2207	  memory overhead for page tables.  For 4k page size, a fourth
2208	  level of page tables is added which imposes both a memory
2209	  overhead as well as slower TLB fault handling.
2210
2211	  If unsure, say N.
2212
2213choice
2214	prompt "Kernel page size"
2215	default PAGE_SIZE_4KB
2216
2217config PAGE_SIZE_4KB
2218	bool "4kB"
2219	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2220	help
2221	  This option select the standard 4kB Linux page size.  On some
2222	  R3000-family processors this is the only available page size.  Using
2223	  4kB page size will minimize memory consumption and is therefore
2224	  recommended for low memory systems.
2225
2226config PAGE_SIZE_8KB
2227	bool "8kB"
2228	depends on CPU_CAVIUM_OCTEON
2229	depends on !MIPS_VA_BITS_48
2230	help
2231	  Using 8kB page size will result in higher performance kernel at
2232	  the price of higher memory consumption.  This option is available
2233	  only on cnMIPS processors.  Note that you will need a suitable Linux
2234	  distribution to support this.
2235
2236config PAGE_SIZE_16KB
2237	bool "16kB"
2238	depends on !CPU_R3000 && !CPU_TX39XX
2239	help
2240	  Using 16kB page size will result in higher performance kernel at
2241	  the price of higher memory consumption.  This option is available on
2242	  all non-R3000 family processors.  Note that you will need a suitable
2243	  Linux distribution to support this.
2244
2245config PAGE_SIZE_32KB
2246	bool "32kB"
2247	depends on CPU_CAVIUM_OCTEON
2248	depends on !MIPS_VA_BITS_48
2249	help
2250	  Using 32kB page size will result in higher performance kernel at
2251	  the price of higher memory consumption.  This option is available
2252	  only on cnMIPS cores.  Note that you will need a suitable Linux
2253	  distribution to support this.
2254
2255config PAGE_SIZE_64KB
2256	bool "64kB"
2257	depends on !CPU_R3000 && !CPU_TX39XX
2258	help
2259	  Using 64kB page size will result in higher performance kernel at
2260	  the price of higher memory consumption.  This option is available on
2261	  all non-R3000 family processor.  Not that at the time of this
2262	  writing this option is still high experimental.
2263
2264endchoice
2265
2266config FORCE_MAX_ZONEORDER
2267	int "Maximum zone order"
2268	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2269	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2270	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2271	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2272	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2273	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2274	range 11 64
2275	default "11"
2276	help
2277	  The kernel memory allocator divides physically contiguous memory
2278	  blocks into "zones", where each zone is a power of two number of
2279	  pages.  This option selects the largest power of two that the kernel
2280	  keeps in the memory allocator.  If you need to allocate very large
2281	  blocks of physically contiguous memory, then you may need to
2282	  increase this value.
2283
2284	  This config option is actually maximum order plus one. For example,
2285	  a value of 11 means that the largest free memory block is 2^10 pages.
2286
2287	  The page size is not necessarily 4KB.  Keep this in mind
2288	  when choosing a value for this option.
2289
2290config BOARD_SCACHE
2291	bool
2292
2293config IP22_CPU_SCACHE
2294	bool
2295	select BOARD_SCACHE
2296
2297#
2298# Support for a MIPS32 / MIPS64 style S-caches
2299#
2300config MIPS_CPU_SCACHE
2301	bool
2302	select BOARD_SCACHE
2303
2304config R5000_CPU_SCACHE
2305	bool
2306	select BOARD_SCACHE
2307
2308config RM7000_CPU_SCACHE
2309	bool
2310	select BOARD_SCACHE
2311
2312config SIBYTE_DMA_PAGEOPS
2313	bool "Use DMA to clear/copy pages"
2314	depends on CPU_SB1
2315	help
2316	  Instead of using the CPU to zero and copy pages, use a Data Mover
2317	  channel.  These DMA channels are otherwise unused by the standard
2318	  SiByte Linux port.  Seems to give a small performance benefit.
2319
2320config CPU_HAS_PREFETCH
2321	bool
2322
2323config CPU_GENERIC_DUMP_TLB
2324	bool
2325	default y if !(CPU_R3000 || CPU_TX39XX)
2326
2327config MIPS_FP_SUPPORT
2328	bool "Floating Point support" if EXPERT
2329	default y
2330	help
2331	  Select y to include support for floating point in the kernel
2332	  including initialization of FPU hardware, FP context save & restore
2333	  and emulation of an FPU where necessary. Without this support any
2334	  userland program attempting to use floating point instructions will
2335	  receive a SIGILL.
2336
2337	  If you know that your userland will not attempt to use floating point
2338	  instructions then you can say n here to shrink the kernel a little.
2339
2340	  If unsure, say y.
2341
2342config CPU_R2300_FPU
2343	bool
2344	depends on MIPS_FP_SUPPORT
2345	default y if CPU_R3000 || CPU_TX39XX
2346
2347config CPU_R3K_TLB
2348	bool
2349
2350config CPU_R4K_FPU
2351	bool
2352	depends on MIPS_FP_SUPPORT
2353	default y if !CPU_R2300_FPU
2354
2355config CPU_R4K_CACHE_TLB
2356	bool
2357	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2358
2359config MIPS_MT_SMP
2360	bool "MIPS MT SMP support (1 TC on each available VPE)"
2361	default y
2362	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2363	select CPU_MIPSR2_IRQ_VI
2364	select CPU_MIPSR2_IRQ_EI
2365	select SYNC_R4K
2366	select MIPS_MT
2367	select SMP
2368	select SMP_UP
2369	select SYS_SUPPORTS_SMP
2370	select SYS_SUPPORTS_SCHED_SMT
2371	select MIPS_PERF_SHARED_TC_COUNTERS
2372	help
2373	  This is a kernel model which is known as SMVP. This is supported
2374	  on cores with the MT ASE and uses the available VPEs to implement
2375	  virtual processors which supports SMP. This is equivalent to the
2376	  Intel Hyperthreading feature. For further information go to
2377	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2378
2379config MIPS_MT
2380	bool
2381
2382config SCHED_SMT
2383	bool "SMT (multithreading) scheduler support"
2384	depends on SYS_SUPPORTS_SCHED_SMT
2385	default n
2386	help
2387	  SMT scheduler support improves the CPU scheduler's decision making
2388	  when dealing with MIPS MT enabled cores at a cost of slightly
2389	  increased overhead in some places. If unsure say N here.
2390
2391config SYS_SUPPORTS_SCHED_SMT
2392	bool
2393
2394config SYS_SUPPORTS_MULTITHREADING
2395	bool
2396
2397config MIPS_MT_FPAFF
2398	bool "Dynamic FPU affinity for FP-intensive threads"
2399	default y
2400	depends on MIPS_MT_SMP
2401
2402config MIPSR2_TO_R6_EMULATOR
2403	bool "MIPS R2-to-R6 emulator"
2404	depends on CPU_MIPSR6
2405	depends on MIPS_FP_SUPPORT
2406	default y
2407	help
2408	  Choose this option if you want to run non-R6 MIPS userland code.
2409	  Even if you say 'Y' here, the emulator will still be disabled by
2410	  default. You can enable it using the 'mipsr2emu' kernel option.
2411	  The only reason this is a build-time option is to save ~14K from the
2412	  final kernel image.
2413
2414config SYS_SUPPORTS_VPE_LOADER
2415	bool
2416	depends on SYS_SUPPORTS_MULTITHREADING
2417	help
2418	  Indicates that the platform supports the VPE loader, and provides
2419	  physical_memsize.
2420
2421config MIPS_VPE_LOADER
2422	bool "VPE loader support."
2423	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2424	select CPU_MIPSR2_IRQ_VI
2425	select CPU_MIPSR2_IRQ_EI
2426	select MIPS_MT
2427	help
2428	  Includes a loader for loading an elf relocatable object
2429	  onto another VPE and running it.
2430
2431config MIPS_VPE_LOADER_CMP
2432	bool
2433	default "y"
2434	depends on MIPS_VPE_LOADER && MIPS_CMP
2435
2436config MIPS_VPE_LOADER_MT
2437	bool
2438	default "y"
2439	depends on MIPS_VPE_LOADER && !MIPS_CMP
2440
2441config MIPS_VPE_LOADER_TOM
2442	bool "Load VPE program into memory hidden from linux"
2443	depends on MIPS_VPE_LOADER
2444	default y
2445	help
2446	  The loader can use memory that is present but has been hidden from
2447	  Linux using the kernel command line option "mem=xxMB". It's up to
2448	  you to ensure the amount you put in the option and the space your
2449	  program requires is less or equal to the amount physically present.
2450
2451config MIPS_VPE_APSP_API
2452	bool "Enable support for AP/SP API (RTLX)"
2453	depends on MIPS_VPE_LOADER
2454
2455config MIPS_VPE_APSP_API_CMP
2456	bool
2457	default "y"
2458	depends on MIPS_VPE_APSP_API && MIPS_CMP
2459
2460config MIPS_VPE_APSP_API_MT
2461	bool
2462	default "y"
2463	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2464
2465config MIPS_CMP
2466	bool "MIPS CMP framework support (DEPRECATED)"
2467	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2468	select SMP
2469	select SYNC_R4K
2470	select SYS_SUPPORTS_SMP
2471	select WEAK_ORDERING
2472	default n
2473	help
2474	  Select this if you are using a bootloader which implements the "CMP
2475	  framework" protocol (ie. YAMON) and want your kernel to make use of
2476	  its ability to start secondary CPUs.
2477
2478	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2479	  instead of this.
2480
2481config MIPS_CPS
2482	bool "MIPS Coherent Processing System support"
2483	depends on SYS_SUPPORTS_MIPS_CPS
2484	select MIPS_CM
2485	select MIPS_CPS_PM if HOTPLUG_CPU
2486	select SMP
2487	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2488	select SYS_SUPPORTS_HOTPLUG_CPU
2489	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2490	select SYS_SUPPORTS_SMP
2491	select WEAK_ORDERING
2492	help
2493	  Select this if you wish to run an SMP kernel across multiple cores
2494	  within a MIPS Coherent Processing System. When this option is
2495	  enabled the kernel will probe for other cores and boot them with
2496	  no external assistance. It is safe to enable this when hardware
2497	  support is unavailable.
2498
2499config MIPS_CPS_PM
2500	depends on MIPS_CPS
2501	bool
2502
2503config MIPS_CM
2504	bool
2505	select MIPS_CPC
2506
2507config MIPS_CPC
2508	bool
2509
2510config SB1_PASS_2_WORKAROUNDS
2511	bool
2512	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2513	default y
2514
2515config SB1_PASS_2_1_WORKAROUNDS
2516	bool
2517	depends on CPU_SB1 && CPU_SB1_PASS_2
2518	default y
2519
2520choice
2521	prompt "SmartMIPS or microMIPS ASE support"
2522
2523config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2524	bool "None"
2525	help
2526	  Select this if you want neither microMIPS nor SmartMIPS support
2527
2528config CPU_HAS_SMARTMIPS
2529	depends on SYS_SUPPORTS_SMARTMIPS
2530	bool "SmartMIPS"
2531	help
2532	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2533	  increased security at both hardware and software level for
2534	  smartcards.  Enabling this option will allow proper use of the
2535	  SmartMIPS instructions by Linux applications.  However a kernel with
2536	  this option will not work on a MIPS core without SmartMIPS core.  If
2537	  you don't know you probably don't have SmartMIPS and should say N
2538	  here.
2539
2540config CPU_MICROMIPS
2541	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2542	bool "microMIPS"
2543	help
2544	  When this option is enabled the kernel will be built using the
2545	  microMIPS ISA
2546
2547endchoice
2548
2549config CPU_HAS_MSA
2550	bool "Support for the MIPS SIMD Architecture"
2551	depends on CPU_SUPPORTS_MSA
2552	depends on MIPS_FP_SUPPORT
2553	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2554	help
2555	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2556	  and a set of SIMD instructions to operate on them. When this option
2557	  is enabled the kernel will support allocating & switching MSA
2558	  vector register contexts. If you know that your kernel will only be
2559	  running on CPUs which do not support MSA or that your userland will
2560	  not be making use of it then you may wish to say N here to reduce
2561	  the size & complexity of your kernel.
2562
2563	  If unsure, say Y.
2564
2565config CPU_HAS_WB
2566	bool
2567
2568config XKS01
2569	bool
2570
2571config CPU_HAS_DIEI
2572	depends on !CPU_DIEI_BROKEN
2573	bool
2574
2575config CPU_DIEI_BROKEN
2576	bool
2577
2578config CPU_HAS_RIXI
2579	bool
2580
2581config CPU_NO_LOAD_STORE_LR
2582	bool
2583	help
2584	  CPU lacks support for unaligned load and store instructions:
2585	  LWL, LWR, SWL, SWR (Load/store word left/right).
2586	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2587	  systems).
2588
2589#
2590# Vectored interrupt mode is an R2 feature
2591#
2592config CPU_MIPSR2_IRQ_VI
2593	bool
2594
2595#
2596# Extended interrupt mode is an R2 feature
2597#
2598config CPU_MIPSR2_IRQ_EI
2599	bool
2600
2601config CPU_HAS_SYNC
2602	bool
2603	depends on !CPU_R3000
2604	default y
2605
2606#
2607# CPU non-features
2608#
2609config CPU_DADDI_WORKAROUNDS
2610	bool
2611
2612config CPU_R4000_WORKAROUNDS
2613	bool
2614	select CPU_R4400_WORKAROUNDS
2615
2616config CPU_R4400_WORKAROUNDS
2617	bool
2618
2619config CPU_R4X00_BUGS64
2620	bool
2621	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2622
2623config MIPS_ASID_SHIFT
2624	int
2625	default 6 if CPU_R3000 || CPU_TX39XX
2626	default 0
2627
2628config MIPS_ASID_BITS
2629	int
2630	default 0 if MIPS_ASID_BITS_VARIABLE
2631	default 6 if CPU_R3000 || CPU_TX39XX
2632	default 8
2633
2634config MIPS_ASID_BITS_VARIABLE
2635	bool
2636
2637config MIPS_CRC_SUPPORT
2638	bool
2639
2640#
2641# - Highmem only makes sense for the 32-bit kernel.
2642# - The current highmem code will only work properly on physically indexed
2643#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2644#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2645#   moment we protect the user and offer the highmem option only on machines
2646#   where it's known to be safe.  This will not offer highmem on a few systems
2647#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2648#   indexed CPUs but we're playing safe.
2649# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2650#   know they might have memory configurations that could make use of highmem
2651#   support.
2652#
2653config HIGHMEM
2654	bool "High Memory Support"
2655	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2656
2657config CPU_SUPPORTS_HIGHMEM
2658	bool
2659
2660config SYS_SUPPORTS_HIGHMEM
2661	bool
2662
2663config SYS_SUPPORTS_SMARTMIPS
2664	bool
2665
2666config SYS_SUPPORTS_MICROMIPS
2667	bool
2668
2669config SYS_SUPPORTS_MIPS16
2670	bool
2671	help
2672	  This option must be set if a kernel might be executed on a MIPS16-
2673	  enabled CPU even if MIPS16 is not actually being used.  In other
2674	  words, it makes the kernel MIPS16-tolerant.
2675
2676config CPU_SUPPORTS_MSA
2677	bool
2678
2679config ARCH_FLATMEM_ENABLE
2680	def_bool y
2681	depends on !NUMA && !CPU_LOONGSON2EF
2682
2683config ARCH_SPARSEMEM_ENABLE
2684	bool
2685	select SPARSEMEM_STATIC if !SGI_IP27
2686
2687config NUMA
2688	bool "NUMA Support"
2689	depends on SYS_SUPPORTS_NUMA
2690	help
2691	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2692	  Access).  This option improves performance on systems with more
2693	  than two nodes; on two node systems it is generally better to
2694	  leave it disabled; on single node systems leave this option
2695	  disabled.
2696
2697config SYS_SUPPORTS_NUMA
2698	bool
2699
2700config HAVE_SETUP_PER_CPU_AREA
2701	def_bool y
2702	depends on NUMA
2703
2704config NEED_PER_CPU_EMBED_FIRST_CHUNK
2705	def_bool y
2706	depends on NUMA
2707
2708config RELOCATABLE
2709	bool "Relocatable kernel"
2710	depends on SYS_SUPPORTS_RELOCATABLE
2711	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2712		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2713		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2714		   CPU_P5600 || CAVIUM_OCTEON_SOC
2715	help
2716	  This builds a kernel image that retains relocation information
2717	  so it can be loaded someplace besides the default 1MB.
2718	  The relocations make the kernel binary about 15% larger,
2719	  but are discarded at runtime
2720
2721config RELOCATION_TABLE_SIZE
2722	hex "Relocation table size"
2723	depends on RELOCATABLE
2724	range 0x0 0x01000000
2725	default "0x00100000"
2726	help
2727	  A table of relocation data will be appended to the kernel binary
2728	  and parsed at boot to fix up the relocated kernel.
2729
2730	  This option allows the amount of space reserved for the table to be
2731	  adjusted, although the default of 1Mb should be ok in most cases.
2732
2733	  The build will fail and a valid size suggested if this is too small.
2734
2735	  If unsure, leave at the default value.
2736
2737config RANDOMIZE_BASE
2738	bool "Randomize the address of the kernel image"
2739	depends on RELOCATABLE
2740	help
2741	  Randomizes the physical and virtual address at which the
2742	  kernel image is loaded, as a security feature that
2743	  deters exploit attempts relying on knowledge of the location
2744	  of kernel internals.
2745
2746	  Entropy is generated using any coprocessor 0 registers available.
2747
2748	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2749
2750	  If unsure, say N.
2751
2752config RANDOMIZE_BASE_MAX_OFFSET
2753	hex "Maximum kASLR offset" if EXPERT
2754	depends on RANDOMIZE_BASE
2755	range 0x0 0x40000000 if EVA || 64BIT
2756	range 0x0 0x08000000
2757	default "0x01000000"
2758	help
2759	  When kASLR is active, this provides the maximum offset that will
2760	  be applied to the kernel image. It should be set according to the
2761	  amount of physical RAM available in the target system minus
2762	  PHYSICAL_START and must be a power of 2.
2763
2764	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2765	  EVA or 64-bit. The default is 16Mb.
2766
2767config NODES_SHIFT
2768	int
2769	default "6"
2770	depends on NEED_MULTIPLE_NODES
2771
2772config HW_PERF_EVENTS
2773	bool "Enable hardware performance counter support for perf events"
2774	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2775	default y
2776	help
2777	  Enable hardware performance counter support for perf events. If
2778	  disabled, perf events will use software events only.
2779
2780config DMI
2781	bool "Enable DMI scanning"
2782	depends on MACH_LOONGSON64
2783	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2784	default y
2785	help
2786	  Enabled scanning of DMI to identify machine quirks. Say Y
2787	  here unless you have verified that your setup is not
2788	  affected by entries in the DMI blacklist. Required by PNP
2789	  BIOS code.
2790
2791config SMP
2792	bool "Multi-Processing support"
2793	depends on SYS_SUPPORTS_SMP
2794	help
2795	  This enables support for systems with more than one CPU. If you have
2796	  a system with only one CPU, say N. If you have a system with more
2797	  than one CPU, say Y.
2798
2799	  If you say N here, the kernel will run on uni- and multiprocessor
2800	  machines, but will use only one CPU of a multiprocessor machine. If
2801	  you say Y here, the kernel will run on many, but not all,
2802	  uniprocessor machines. On a uniprocessor machine, the kernel
2803	  will run faster if you say N here.
2804
2805	  People using multiprocessor machines who say Y here should also say
2806	  Y to "Enhanced Real Time Clock Support", below.
2807
2808	  See also the SMP-HOWTO available at
2809	  <https://www.tldp.org/docs.html#howto>.
2810
2811	  If you don't know what to do here, say N.
2812
2813config HOTPLUG_CPU
2814	bool "Support for hot-pluggable CPUs"
2815	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2816	help
2817	  Say Y here to allow turning CPUs off and on. CPUs can be
2818	  controlled through /sys/devices/system/cpu.
2819	  (Note: power management support will enable this option
2820	    automatically on SMP systems. )
2821	  Say N if you want to disable CPU hotplug.
2822
2823config SMP_UP
2824	bool
2825
2826config SYS_SUPPORTS_MIPS_CMP
2827	bool
2828
2829config SYS_SUPPORTS_MIPS_CPS
2830	bool
2831
2832config SYS_SUPPORTS_SMP
2833	bool
2834
2835config NR_CPUS_DEFAULT_4
2836	bool
2837
2838config NR_CPUS_DEFAULT_8
2839	bool
2840
2841config NR_CPUS_DEFAULT_16
2842	bool
2843
2844config NR_CPUS_DEFAULT_32
2845	bool
2846
2847config NR_CPUS_DEFAULT_64
2848	bool
2849
2850config NR_CPUS
2851	int "Maximum number of CPUs (2-256)"
2852	range 2 256
2853	depends on SMP
2854	default "4" if NR_CPUS_DEFAULT_4
2855	default "8" if NR_CPUS_DEFAULT_8
2856	default "16" if NR_CPUS_DEFAULT_16
2857	default "32" if NR_CPUS_DEFAULT_32
2858	default "64" if NR_CPUS_DEFAULT_64
2859	help
2860	  This allows you to specify the maximum number of CPUs which this
2861	  kernel will support.  The maximum supported value is 32 for 32-bit
2862	  kernel and 64 for 64-bit kernels; the minimum value which makes
2863	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2864	  and 2 for all others.
2865
2866	  This is purely to save memory - each supported CPU adds
2867	  approximately eight kilobytes to the kernel image.  For best
2868	  performance should round up your number of processors to the next
2869	  power of two.
2870
2871config MIPS_PERF_SHARED_TC_COUNTERS
2872	bool
2873
2874config MIPS_NR_CPU_NR_MAP_1024
2875	bool
2876
2877config MIPS_NR_CPU_NR_MAP
2878	int
2879	depends on SMP
2880	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2881	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2882
2883#
2884# Timer Interrupt Frequency Configuration
2885#
2886
2887choice
2888	prompt "Timer frequency"
2889	default HZ_250
2890	help
2891	  Allows the configuration of the timer frequency.
2892
2893	config HZ_24
2894		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2895
2896	config HZ_48
2897		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2898
2899	config HZ_100
2900		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2901
2902	config HZ_128
2903		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2904
2905	config HZ_250
2906		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2907
2908	config HZ_256
2909		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2910
2911	config HZ_1000
2912		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2913
2914	config HZ_1024
2915		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2916
2917endchoice
2918
2919config SYS_SUPPORTS_24HZ
2920	bool
2921
2922config SYS_SUPPORTS_48HZ
2923	bool
2924
2925config SYS_SUPPORTS_100HZ
2926	bool
2927
2928config SYS_SUPPORTS_128HZ
2929	bool
2930
2931config SYS_SUPPORTS_250HZ
2932	bool
2933
2934config SYS_SUPPORTS_256HZ
2935	bool
2936
2937config SYS_SUPPORTS_1000HZ
2938	bool
2939
2940config SYS_SUPPORTS_1024HZ
2941	bool
2942
2943config SYS_SUPPORTS_ARBIT_HZ
2944	bool
2945	default y if !SYS_SUPPORTS_24HZ && \
2946		     !SYS_SUPPORTS_48HZ && \
2947		     !SYS_SUPPORTS_100HZ && \
2948		     !SYS_SUPPORTS_128HZ && \
2949		     !SYS_SUPPORTS_250HZ && \
2950		     !SYS_SUPPORTS_256HZ && \
2951		     !SYS_SUPPORTS_1000HZ && \
2952		     !SYS_SUPPORTS_1024HZ
2953
2954config HZ
2955	int
2956	default 24 if HZ_24
2957	default 48 if HZ_48
2958	default 100 if HZ_100
2959	default 128 if HZ_128
2960	default 250 if HZ_250
2961	default 256 if HZ_256
2962	default 1000 if HZ_1000
2963	default 1024 if HZ_1024
2964
2965config SCHED_HRTICK
2966	def_bool HIGH_RES_TIMERS
2967
2968config KEXEC
2969	bool "Kexec system call"
2970	select KEXEC_CORE
2971	help
2972	  kexec is a system call that implements the ability to shutdown your
2973	  current kernel, and to start another kernel.  It is like a reboot
2974	  but it is independent of the system firmware.   And like a reboot
2975	  you can start any kernel with it, not just Linux.
2976
2977	  The name comes from the similarity to the exec system call.
2978
2979	  It is an ongoing process to be certain the hardware in a machine
2980	  is properly shutdown, so do not be surprised if this code does not
2981	  initially work for you.  As of this writing the exact hardware
2982	  interface is strongly in flux, so no good recommendation can be
2983	  made.
2984
2985config CRASH_DUMP
2986	bool "Kernel crash dumps"
2987	help
2988	  Generate crash dump after being started by kexec.
2989	  This should be normally only set in special crash dump kernels
2990	  which are loaded in the main kernel with kexec-tools into
2991	  a specially reserved region and then later executed after
2992	  a crash by kdump/kexec. The crash dump kernel must be compiled
2993	  to a memory address not used by the main kernel or firmware using
2994	  PHYSICAL_START.
2995
2996config PHYSICAL_START
2997	hex "Physical address where the kernel is loaded"
2998	default "0xffffffff84000000"
2999	depends on CRASH_DUMP
3000	help
3001	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3002	  If you plan to use kernel for capturing the crash dump change
3003	  this value to start of the reserved region (the "X" value as
3004	  specified in the "crashkernel=YM@XM" command line boot parameter
3005	  passed to the panic-ed kernel).
3006
3007config SECCOMP
3008	bool "Enable seccomp to safely compute untrusted bytecode"
3009	depends on PROC_FS
3010	default y
3011	help
3012	  This kernel feature is useful for number crunching applications
3013	  that may need to compute untrusted bytecode during their
3014	  execution. By using pipes or other transports made available to
3015	  the process as file descriptors supporting the read/write
3016	  syscalls, it's possible to isolate those applications in
3017	  their own address space using seccomp. Once seccomp is
3018	  enabled via /proc/<pid>/seccomp, it cannot be disabled
3019	  and the task is only allowed to execute a few safe syscalls
3020	  defined by each seccomp mode.
3021
3022	  If unsure, say Y. Only embedded should say N here.
3023
3024config MIPS_O32_FP64_SUPPORT
3025	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3026	depends on 32BIT || MIPS32_O32
3027	help
3028	  When this is enabled, the kernel will support use of 64-bit floating
3029	  point registers with binaries using the O32 ABI along with the
3030	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3031	  32-bit MIPS systems this support is at the cost of increasing the
3032	  size and complexity of the compiled FPU emulator. Thus if you are
3033	  running a MIPS32 system and know that none of your userland binaries
3034	  will require 64-bit floating point, you may wish to reduce the size
3035	  of your kernel & potentially improve FP emulation performance by
3036	  saying N here.
3037
3038	  Although binutils currently supports use of this flag the details
3039	  concerning its effect upon the O32 ABI in userland are still being
3040	  worked on. In order to avoid userland becoming dependant upon current
3041	  behaviour before the details have been finalised, this option should
3042	  be considered experimental and only enabled by those working upon
3043	  said details.
3044
3045	  If unsure, say N.
3046
3047config USE_OF
3048	bool
3049	select OF
3050	select OF_EARLY_FLATTREE
3051	select IRQ_DOMAIN
3052
3053config UHI_BOOT
3054	bool
3055
3056config BUILTIN_DTB
3057	bool
3058
3059choice
3060	prompt "Kernel appended dtb support" if USE_OF
3061	default MIPS_NO_APPENDED_DTB
3062
3063	config MIPS_NO_APPENDED_DTB
3064		bool "None"
3065		help
3066		  Do not enable appended dtb support.
3067
3068	config MIPS_ELF_APPENDED_DTB
3069		bool "vmlinux"
3070		help
3071		  With this option, the boot code will look for a device tree binary
3072		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3073		  it is empty and the DTB can be appended using binutils command
3074		  objcopy:
3075
3076		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3077
3078		  This is meant as a backward compatiblity convenience for those
3079		  systems with a bootloader that can't be upgraded to accommodate
3080		  the documented boot protocol using a device tree.
3081
3082	config MIPS_RAW_APPENDED_DTB
3083		bool "vmlinux.bin or vmlinuz.bin"
3084		help
3085		  With this option, the boot code will look for a device tree binary
3086		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3087		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3088
3089		  This is meant as a backward compatibility convenience for those
3090		  systems with a bootloader that can't be upgraded to accommodate
3091		  the documented boot protocol using a device tree.
3092
3093		  Beware that there is very little in terms of protection against
3094		  this option being confused by leftover garbage in memory that might
3095		  look like a DTB header after a reboot if no actual DTB is appended
3096		  to vmlinux.bin.  Do not leave this option active in a production kernel
3097		  if you don't intend to always append a DTB.
3098endchoice
3099
3100choice
3101	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3102	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3103					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3104					 !CAVIUM_OCTEON_SOC
3105	default MIPS_CMDLINE_FROM_BOOTLOADER
3106
3107	config MIPS_CMDLINE_FROM_DTB
3108		depends on USE_OF
3109		bool "Dtb kernel arguments if available"
3110
3111	config MIPS_CMDLINE_DTB_EXTEND
3112		depends on USE_OF
3113		bool "Extend dtb kernel arguments with bootloader arguments"
3114
3115	config MIPS_CMDLINE_FROM_BOOTLOADER
3116		bool "Bootloader kernel arguments if available"
3117
3118	config MIPS_CMDLINE_BUILTIN_EXTEND
3119		depends on CMDLINE_BOOL
3120		bool "Extend builtin kernel arguments with bootloader arguments"
3121endchoice
3122
3123endmenu
3124
3125config LOCKDEP_SUPPORT
3126	bool
3127	default y
3128
3129config STACKTRACE_SUPPORT
3130	bool
3131	default y
3132
3133config PGTABLE_LEVELS
3134	int
3135	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3136	default 3 if 64BIT && !PAGE_SIZE_64KB
3137	default 2
3138
3139config MIPS_AUTO_PFN_OFFSET
3140	bool
3141
3142menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3143
3144config PCI_DRIVERS_GENERIC
3145	select PCI_DOMAINS_GENERIC if PCI
3146	bool
3147
3148config PCI_DRIVERS_LEGACY
3149	def_bool !PCI_DRIVERS_GENERIC
3150	select NO_GENERIC_PCI_IOPORT_MAP
3151	select PCI_DOMAINS if PCI
3152
3153#
3154# ISA support is now enabled via select.  Too many systems still have the one
3155# or other ISA chip on the board that users don't know about so don't expect
3156# users to choose the right thing ...
3157#
3158config ISA
3159	bool
3160
3161config TC
3162	bool "TURBOchannel support"
3163	depends on MACH_DECSTATION
3164	help
3165	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3166	  processors.  TURBOchannel programming specifications are available
3167	  at:
3168	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3169	  and:
3170	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3171	  Linux driver support status is documented at:
3172	  <http://www.linux-mips.org/wiki/DECstation>
3173
3174config MMU
3175	bool
3176	default y
3177
3178config ARCH_MMAP_RND_BITS_MIN
3179	default 12 if 64BIT
3180	default 8
3181
3182config ARCH_MMAP_RND_BITS_MAX
3183	default 18 if 64BIT
3184	default 15
3185
3186config ARCH_MMAP_RND_COMPAT_BITS_MIN
3187	default 8
3188
3189config ARCH_MMAP_RND_COMPAT_BITS_MAX
3190	default 15
3191
3192config I8253
3193	bool
3194	select CLKSRC_I8253
3195	select CLKEVT_I8253
3196	select MIPS_EXTERNAL_TIMER
3197
3198config ZONE_DMA
3199	bool
3200
3201config ZONE_DMA32
3202	bool
3203
3204endmenu
3205
3206config TRAD_SIGNALS
3207	bool
3208
3209config MIPS32_COMPAT
3210	bool
3211
3212config COMPAT
3213	bool
3214
3215config SYSVIPC_COMPAT
3216	bool
3217
3218config MIPS32_O32
3219	bool "Kernel support for o32 binaries"
3220	depends on 64BIT
3221	select ARCH_WANT_OLD_COMPAT_IPC
3222	select COMPAT
3223	select MIPS32_COMPAT
3224	select SYSVIPC_COMPAT if SYSVIPC
3225	help
3226	  Select this option if you want to run o32 binaries.  These are pure
3227	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3228	  existing binaries are in this format.
3229
3230	  If unsure, say Y.
3231
3232config MIPS32_N32
3233	bool "Kernel support for n32 binaries"
3234	depends on 64BIT
3235	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3236	select COMPAT
3237	select MIPS32_COMPAT
3238	select SYSVIPC_COMPAT if SYSVIPC
3239	help
3240	  Select this option if you want to run n32 binaries.  These are
3241	  64-bit binaries using 32-bit quantities for addressing and certain
3242	  data that would normally be 64-bit.  They are used in special
3243	  cases.
3244
3245	  If unsure, say N.
3246
3247config BINFMT_ELF32
3248	bool
3249	default y if MIPS32_O32 || MIPS32_N32
3250	select ELFCORE
3251
3252menu "Power management options"
3253
3254config ARCH_HIBERNATION_POSSIBLE
3255	def_bool y
3256	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3257
3258config ARCH_SUSPEND_POSSIBLE
3259	def_bool y
3260	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3261
3262source "kernel/power/Kconfig"
3263
3264endmenu
3265
3266config MIPS_EXTERNAL_TIMER
3267	bool
3268
3269menu "CPU Power Management"
3270
3271if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3272source "drivers/cpufreq/Kconfig"
3273endif
3274
3275source "drivers/cpuidle/Kconfig"
3276
3277endmenu
3278
3279source "drivers/firmware/Kconfig"
3280
3281source "arch/mips/kvm/Kconfig"
3282
3283source "arch/mips/vdso/Kconfig"
3284