xref: /openbmc/linux/arch/mips/Kconfig (revision c6fddb28)
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_COPY_THREAD_TLS
55	select HAVE_C_RECORDMCOUNT
56	select HAVE_DEBUG_KMEMLEAK
57	select HAVE_DEBUG_STACKOVERFLOW
58	select HAVE_DMA_CONTIGUOUS
59	select HAVE_DYNAMIC_FTRACE
60	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
61	select HAVE_EXIT_THREAD
62	select HAVE_FAST_GUP
63	select HAVE_FTRACE_MCOUNT_RECORD
64	select HAVE_FUNCTION_GRAPH_TRACER
65	select HAVE_FUNCTION_TRACER
66	select HAVE_GCC_PLUGINS
67	select HAVE_GENERIC_VDSO
68	select HAVE_IDE
69	select HAVE_IOREMAP_PROT
70	select HAVE_IRQ_EXIT_ON_IRQ_STACK
71	select HAVE_IRQ_TIME_ACCOUNTING
72	select HAVE_KPROBES
73	select HAVE_KRETPROBES
74	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
75	select HAVE_MEMBLOCK_NODE_MAP
76	select HAVE_MOD_ARCH_SPECIFIC
77	select HAVE_NMI
78	select HAVE_OPROFILE
79	select HAVE_PERF_EVENTS
80	select HAVE_REGS_AND_STACK_ACCESS_API
81	select HAVE_RSEQ
82	select HAVE_SPARSE_SYSCALL_NR
83	select HAVE_STACKPROTECTOR
84	select HAVE_SYSCALL_TRACEPOINTS
85	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
86	select IRQ_FORCED_THREADING
87	select ISA if EISA
88	select MODULES_USE_ELF_REL if MODULES
89	select MODULES_USE_ELF_RELA if MODULES && 64BIT
90	select PERF_USE_VMALLOC
91	select RTC_LIB
92	select SYSCTL_EXCEPTION_TRACE
93	select VIRT_TO_BUS
94
95menu "Machine selection"
96
97choice
98	prompt "System type"
99	default MIPS_GENERIC
100
101config MIPS_GENERIC
102	bool "Generic board-agnostic MIPS kernel"
103	select BOOT_RAW
104	select BUILTIN_DTB
105	select CEVT_R4K
106	select CLKSRC_MIPS_GIC
107	select COMMON_CLK
108	select CPU_MIPSR2_IRQ_EI
109	select CPU_MIPSR2_IRQ_VI
110	select CSRC_R4K
111	select DMA_PERDEV_COHERENT
112	select HAVE_PCI
113	select IRQ_MIPS_CPU
114	select MIPS_AUTO_PFN_OFFSET
115	select MIPS_CPU_SCACHE
116	select MIPS_GIC
117	select MIPS_L1_CACHE_SHIFT_7
118	select NO_EXCEPT_FILL
119	select PCI_DRIVERS_GENERIC
120	select SMP_UP if SMP
121	select SWAP_IO_SPACE
122	select SYS_HAS_CPU_MIPS32_R1
123	select SYS_HAS_CPU_MIPS32_R2
124	select SYS_HAS_CPU_MIPS32_R6
125	select SYS_HAS_CPU_MIPS64_R1
126	select SYS_HAS_CPU_MIPS64_R2
127	select SYS_HAS_CPU_MIPS64_R6
128	select SYS_SUPPORTS_32BIT_KERNEL
129	select SYS_SUPPORTS_64BIT_KERNEL
130	select SYS_SUPPORTS_BIG_ENDIAN
131	select SYS_SUPPORTS_HIGHMEM
132	select SYS_SUPPORTS_LITTLE_ENDIAN
133	select SYS_SUPPORTS_MICROMIPS
134	select SYS_SUPPORTS_MIPS16
135	select SYS_SUPPORTS_MIPS_CPS
136	select SYS_SUPPORTS_MULTITHREADING
137	select SYS_SUPPORTS_RELOCATABLE
138	select SYS_SUPPORTS_SMARTMIPS
139	select UHI_BOOT
140	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
141	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
142	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
143	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
144	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
145	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
146	select USE_OF
147	help
148	  Select this to build a kernel which aims to support multiple boards,
149	  generally using a flattened device tree passed from the bootloader
150	  using the boot protocol defined in the UHI (Unified Hosting
151	  Interface) specification.
152
153config MIPS_ALCHEMY
154	bool "Alchemy processor based machines"
155	select PHYS_ADDR_T_64BIT
156	select CEVT_R4K
157	select CSRC_R4K
158	select IRQ_MIPS_CPU
159	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
160	select SYS_HAS_CPU_MIPS32_R1
161	select SYS_SUPPORTS_32BIT_KERNEL
162	select SYS_SUPPORTS_APM_EMULATION
163	select GPIOLIB
164	select SYS_SUPPORTS_ZBOOT
165	select COMMON_CLK
166
167config AR7
168	bool "Texas Instruments AR7"
169	select BOOT_ELF32
170	select DMA_NONCOHERENT
171	select CEVT_R4K
172	select CSRC_R4K
173	select IRQ_MIPS_CPU
174	select NO_EXCEPT_FILL
175	select SWAP_IO_SPACE
176	select SYS_HAS_CPU_MIPS32_R1
177	select SYS_HAS_EARLY_PRINTK
178	select SYS_SUPPORTS_32BIT_KERNEL
179	select SYS_SUPPORTS_LITTLE_ENDIAN
180	select SYS_SUPPORTS_MIPS16
181	select SYS_SUPPORTS_ZBOOT_UART16550
182	select GPIOLIB
183	select VLYNQ
184	select HAVE_CLK
185	help
186	  Support for the Texas Instruments AR7 System-on-a-Chip
187	  family: TNETD7100, 7200 and 7300.
188
189config ATH25
190	bool "Atheros AR231x/AR531x SoC support"
191	select CEVT_R4K
192	select CSRC_R4K
193	select DMA_NONCOHERENT
194	select IRQ_MIPS_CPU
195	select IRQ_DOMAIN
196	select SYS_HAS_CPU_MIPS32_R1
197	select SYS_SUPPORTS_BIG_ENDIAN
198	select SYS_SUPPORTS_32BIT_KERNEL
199	select SYS_HAS_EARLY_PRINTK
200	help
201	  Support for Atheros AR231x and Atheros AR531x based boards
202
203config ATH79
204	bool "Atheros AR71XX/AR724X/AR913X based boards"
205	select ARCH_HAS_RESET_CONTROLLER
206	select BOOT_RAW
207	select CEVT_R4K
208	select CSRC_R4K
209	select DMA_NONCOHERENT
210	select GPIOLIB
211	select PINCTRL
212	select HAVE_CLK
213	select COMMON_CLK
214	select CLKDEV_LOOKUP
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 HAVE_CLK
302	select MIPS_L1_CACHE_SHIFT_4
303	select CLKDEV_LOOKUP
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 FW_ARC
370	select FW_ARC32
371	select ARCH_MAY_HAVE_PC_FDC
372	select CEVT_R4K
373	select CSRC_R4K
374	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
375	select GENERIC_ISA_DMA
376	select HAVE_PCSPKR_PLATFORM
377	select IRQ_MIPS_CPU
378	select I8253
379	select I8259
380	select ISA
381	select SYS_HAS_CPU_R4X00
382	select SYS_SUPPORTS_32BIT_KERNEL
383	select SYS_SUPPORTS_64BIT_KERNEL
384	select SYS_SUPPORTS_100HZ
385	help
386	  This a family of machines based on the MIPS R4030 chipset which was
387	  used by several vendors to build RISC/os and Windows NT workstations.
388	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
389	  Olivetti M700-10 workstations.
390
391config MACH_INGENIC
392	bool "Ingenic SoC based machines"
393	select SYS_SUPPORTS_32BIT_KERNEL
394	select SYS_SUPPORTS_LITTLE_ENDIAN
395	select SYS_SUPPORTS_ZBOOT_UART16550
396	select CPU_SUPPORTS_HUGEPAGES
397	select DMA_NONCOHERENT
398	select IRQ_MIPS_CPU
399	select PINCTRL
400	select GPIOLIB
401	select COMMON_CLK
402	select GENERIC_IRQ_CHIP
403	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
404	select USE_OF
405
406config LANTIQ
407	bool "Lantiq based platforms"
408	select DMA_NONCOHERENT
409	select IRQ_MIPS_CPU
410	select CEVT_R4K
411	select CSRC_R4K
412	select SYS_HAS_CPU_MIPS32_R1
413	select SYS_HAS_CPU_MIPS32_R2
414	select SYS_SUPPORTS_BIG_ENDIAN
415	select SYS_SUPPORTS_32BIT_KERNEL
416	select SYS_SUPPORTS_MIPS16
417	select SYS_SUPPORTS_MULTITHREADING
418	select SYS_SUPPORTS_VPE_LOADER
419	select SYS_HAS_EARLY_PRINTK
420	select GPIOLIB
421	select SWAP_IO_SPACE
422	select BOOT_RAW
423	select CLKDEV_LOOKUP
424	select USE_OF
425	select PINCTRL
426	select PINCTRL_LANTIQ
427	select ARCH_HAS_RESET_CONTROLLER
428	select RESET_CONTROLLER
429
430config LASAT
431	bool "LASAT Networks platforms"
432	select CEVT_R4K
433	select CRC32
434	select CSRC_R4K
435	select DMA_NONCOHERENT
436	select SYS_HAS_EARLY_PRINTK
437	select HAVE_PCI
438	select IRQ_MIPS_CPU
439	select PCI_GT64XXX_PCI0
440	select MIPS_NILE4
441	select R5000_CPU_SCACHE
442	select SYS_HAS_CPU_R5000
443	select SYS_SUPPORTS_32BIT_KERNEL
444	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
445	select SYS_SUPPORTS_LITTLE_ENDIAN
446
447config MACH_LOONGSON32
448	bool "Loongson 32-bit family of machines"
449	select SYS_SUPPORTS_ZBOOT
450	help
451	  This enables support for the Loongson-1 family of machines.
452
453	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
454	  the Institute of Computing Technology (ICT), Chinese Academy of
455	  Sciences (CAS).
456
457config MACH_LOONGSON2EF
458	bool "Loongson-2E/F family of machines"
459	select SYS_SUPPORTS_ZBOOT
460	help
461	  This enables the support of early Loongson-2E/F family of machines.
462
463config MACH_LOONGSON64
464	bool "Loongson 64-bit family of machines"
465	select ARCH_SPARSEMEM_ENABLE
466	select ARCH_MIGHT_HAVE_PC_PARPORT
467	select ARCH_MIGHT_HAVE_PC_SERIO
468	select GENERIC_ISA_DMA_SUPPORT_BROKEN
469	select BOOT_ELF32
470	select BOARD_SCACHE
471	select CSRC_R4K
472	select CEVT_R4K
473	select CPU_HAS_WB
474	select FORCE_PCI
475	select ISA
476	select I8259
477	select IRQ_MIPS_CPU
478	select NR_CPUS_DEFAULT_4
479	select USE_GENERIC_EARLY_PRINTK_8250
480	select SYS_HAS_CPU_LOONGSON64
481	select SYS_HAS_EARLY_PRINTK
482	select SYS_SUPPORTS_SMP
483	select SYS_SUPPORTS_HOTPLUG_CPU
484	select SYS_SUPPORTS_NUMA
485	select SYS_SUPPORTS_64BIT_KERNEL
486	select SYS_SUPPORTS_HIGHMEM
487	select SYS_SUPPORTS_LITTLE_ENDIAN
488	select SYS_SUPPORTS_ZBOOT
489	select ZONE_DMA32
490	select NUMA
491	select COMMON_CLK
492	select USE_OF
493	select BUILTIN_DTB
494	help
495	  This enables the support of Loongson-2/3 family of machines.
496
497	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
498	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
499	  and Loongson-2F which will be removed), developed by the Institute
500	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
501
502config MACH_PISTACHIO
503	bool "IMG Pistachio SoC based boards"
504	select BOOT_ELF32
505	select BOOT_RAW
506	select CEVT_R4K
507	select CLKSRC_MIPS_GIC
508	select COMMON_CLK
509	select CSRC_R4K
510	select DMA_NONCOHERENT
511	select GPIOLIB
512	select IRQ_MIPS_CPU
513	select MFD_SYSCON
514	select MIPS_CPU_SCACHE
515	select MIPS_GIC
516	select PINCTRL
517	select REGULATOR
518	select SYS_HAS_CPU_MIPS32_R2
519	select SYS_SUPPORTS_32BIT_KERNEL
520	select SYS_SUPPORTS_LITTLE_ENDIAN
521	select SYS_SUPPORTS_MIPS_CPS
522	select SYS_SUPPORTS_MULTITHREADING
523	select SYS_SUPPORTS_RELOCATABLE
524	select SYS_SUPPORTS_ZBOOT
525	select SYS_HAS_EARLY_PRINTK
526	select USE_GENERIC_EARLY_PRINTK_8250
527	select USE_OF
528	help
529	  This enables support for the IMG Pistachio SoC platform.
530
531config MIPS_MALTA
532	bool "MIPS Malta board"
533	select ARCH_MAY_HAVE_PC_FDC
534	select ARCH_MIGHT_HAVE_PC_PARPORT
535	select ARCH_MIGHT_HAVE_PC_SERIO
536	select BOOT_ELF32
537	select BOOT_RAW
538	select BUILTIN_DTB
539	select CEVT_R4K
540	select CLKSRC_MIPS_GIC
541	select COMMON_CLK
542	select CSRC_R4K
543	select DMA_MAYBE_COHERENT
544	select GENERIC_ISA_DMA
545	select HAVE_PCSPKR_PLATFORM
546	select HAVE_PCI
547	select I8253
548	select I8259
549	select IRQ_MIPS_CPU
550	select MIPS_BONITO64
551	select MIPS_CPU_SCACHE
552	select MIPS_GIC
553	select MIPS_L1_CACHE_SHIFT_6
554	select MIPS_MSC
555	select PCI_GT64XXX_PCI0
556	select SMP_UP if SMP
557	select SWAP_IO_SPACE
558	select SYS_HAS_CPU_MIPS32_R1
559	select SYS_HAS_CPU_MIPS32_R2
560	select SYS_HAS_CPU_MIPS32_R3_5
561	select SYS_HAS_CPU_MIPS32_R5
562	select SYS_HAS_CPU_MIPS32_R6
563	select SYS_HAS_CPU_MIPS64_R1
564	select SYS_HAS_CPU_MIPS64_R2
565	select SYS_HAS_CPU_MIPS64_R6
566	select SYS_HAS_CPU_NEVADA
567	select SYS_HAS_CPU_RM7000
568	select SYS_SUPPORTS_32BIT_KERNEL
569	select SYS_SUPPORTS_64BIT_KERNEL
570	select SYS_SUPPORTS_BIG_ENDIAN
571	select SYS_SUPPORTS_HIGHMEM
572	select SYS_SUPPORTS_LITTLE_ENDIAN
573	select SYS_SUPPORTS_MICROMIPS
574	select SYS_SUPPORTS_MIPS16
575	select SYS_SUPPORTS_MIPS_CMP
576	select SYS_SUPPORTS_MIPS_CPS
577	select SYS_SUPPORTS_MULTITHREADING
578	select SYS_SUPPORTS_RELOCATABLE
579	select SYS_SUPPORTS_SMARTMIPS
580	select SYS_SUPPORTS_VPE_LOADER
581	select SYS_SUPPORTS_ZBOOT
582	select USE_OF
583	select ZONE_DMA32 if 64BIT
584	help
585	  This enables support for the MIPS Technologies Malta evaluation
586	  board.
587
588config MACH_PIC32
589	bool "Microchip PIC32 Family"
590	help
591	  This enables support for the Microchip PIC32 family of platforms.
592
593	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
594	  microcontrollers.
595
596config NEC_MARKEINS
597	bool "NEC EMMA2RH Mark-eins board"
598	select SOC_EMMA2RH
599	select HAVE_PCI
600	help
601	  This enables support for the NEC Electronics Mark-eins boards.
602
603config MACH_VR41XX
604	bool "NEC VR4100 series based machines"
605	select CEVT_R4K
606	select CSRC_R4K
607	select SYS_HAS_CPU_VR41XX
608	select SYS_SUPPORTS_MIPS16
609	select GPIOLIB
610
611config NXP_STB220
612	bool "NXP STB220 board"
613	select SOC_PNX833X
614	help
615	  Support for NXP Semiconductors STB220 Development Board.
616
617config NXP_STB225
618	bool "NXP 225 board"
619	select SOC_PNX833X
620	select SOC_PNX8335
621	help
622	  Support for NXP Semiconductors STB225 Development Board.
623
624config PMC_MSP
625	bool "PMC-Sierra MSP chipsets"
626	select CEVT_R4K
627	select CSRC_R4K
628	select DMA_NONCOHERENT
629	select SWAP_IO_SPACE
630	select NO_EXCEPT_FILL
631	select BOOT_RAW
632	select SYS_HAS_CPU_MIPS32_R1
633	select SYS_HAS_CPU_MIPS32_R2
634	select SYS_SUPPORTS_32BIT_KERNEL
635	select SYS_SUPPORTS_BIG_ENDIAN
636	select SYS_SUPPORTS_MIPS16
637	select IRQ_MIPS_CPU
638	select SERIAL_8250
639	select SERIAL_8250_CONSOLE
640	select USB_EHCI_BIG_ENDIAN_MMIO
641	select USB_EHCI_BIG_ENDIAN_DESC
642	help
643	  This adds support for the PMC-Sierra family of Multi-Service
644	  Processor System-On-A-Chips.  These parts include a number
645	  of integrated peripherals, interfaces and DSPs in addition to
646	  a variety of MIPS cores.
647
648config RALINK
649	bool "Ralink based machines"
650	select CEVT_R4K
651	select CSRC_R4K
652	select BOOT_RAW
653	select DMA_NONCOHERENT
654	select IRQ_MIPS_CPU
655	select USE_OF
656	select SYS_HAS_CPU_MIPS32_R1
657	select SYS_HAS_CPU_MIPS32_R2
658	select SYS_SUPPORTS_32BIT_KERNEL
659	select SYS_SUPPORTS_LITTLE_ENDIAN
660	select SYS_SUPPORTS_MIPS16
661	select SYS_HAS_EARLY_PRINTK
662	select CLKDEV_LOOKUP
663	select ARCH_HAS_RESET_CONTROLLER
664	select RESET_CONTROLLER
665
666config SGI_IP22
667	bool "SGI IP22 (Indy/Indigo2)"
668	select ARC_MEMORY
669	select ARC_PROMLIB
670	select FW_ARC
671	select FW_ARC32
672	select ARCH_MIGHT_HAVE_PC_SERIO
673	select BOOT_ELF32
674	select CEVT_R4K
675	select CSRC_R4K
676	select DEFAULT_SGI_PARTITION
677	select DMA_NONCOHERENT
678	select HAVE_EISA
679	select I8253
680	select I8259
681	select IP22_CPU_SCACHE
682	select IRQ_MIPS_CPU
683	select GENERIC_ISA_DMA_SUPPORT_BROKEN
684	select SGI_HAS_I8042
685	select SGI_HAS_INDYDOG
686	select SGI_HAS_HAL2
687	select SGI_HAS_SEEQ
688	select SGI_HAS_WD93
689	select SGI_HAS_ZILOG
690	select SWAP_IO_SPACE
691	select SYS_HAS_CPU_R4X00
692	select SYS_HAS_CPU_R5000
693	select SYS_HAS_EARLY_PRINTK
694	select SYS_SUPPORTS_32BIT_KERNEL
695	select SYS_SUPPORTS_64BIT_KERNEL
696	select SYS_SUPPORTS_BIG_ENDIAN
697	select MIPS_L1_CACHE_SHIFT_7
698	help
699	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
700	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
701	  that runs on these, say Y here.
702
703config SGI_IP27
704	bool "SGI IP27 (Origin200/2000)"
705	select ARCH_HAS_PHYS_TO_DMA
706	select ARCH_SPARSEMEM_ENABLE
707	select FW_ARC
708	select FW_ARC64
709	select ARC_CMDLINE_ONLY
710	select BOOT_ELF64
711	select DEFAULT_SGI_PARTITION
712	select SYS_HAS_EARLY_PRINTK
713	select HAVE_PCI
714	select IRQ_MIPS_CPU
715	select IRQ_DOMAIN_HIERARCHY
716	select NR_CPUS_DEFAULT_64
717	select PCI_DRIVERS_GENERIC
718	select PCI_XTALK_BRIDGE
719	select SYS_HAS_CPU_R10000
720	select SYS_SUPPORTS_64BIT_KERNEL
721	select SYS_SUPPORTS_BIG_ENDIAN
722	select SYS_SUPPORTS_NUMA
723	select SYS_SUPPORTS_SMP
724	select MIPS_L1_CACHE_SHIFT_7
725	help
726	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
727	  workstations.  To compile a Linux kernel that runs on these, say Y
728	  here.
729
730config SGI_IP28
731	bool "SGI IP28 (Indigo2 R10k)"
732	select ARC_MEMORY
733	select ARC_PROMLIB
734	select FW_ARC
735	select FW_ARC64
736	select ARCH_MIGHT_HAVE_PC_SERIO
737	select BOOT_ELF64
738	select CEVT_R4K
739	select CSRC_R4K
740	select DEFAULT_SGI_PARTITION
741	select DMA_NONCOHERENT
742	select GENERIC_ISA_DMA_SUPPORT_BROKEN
743	select IRQ_MIPS_CPU
744	select HAVE_EISA
745	select I8253
746	select I8259
747	select SGI_HAS_I8042
748	select SGI_HAS_INDYDOG
749	select SGI_HAS_HAL2
750	select SGI_HAS_SEEQ
751	select SGI_HAS_WD93
752	select SGI_HAS_ZILOG
753	select SWAP_IO_SPACE
754	select SYS_HAS_CPU_R10000
755	select SYS_HAS_EARLY_PRINTK
756	select SYS_SUPPORTS_64BIT_KERNEL
757	select SYS_SUPPORTS_BIG_ENDIAN
758	select MIPS_L1_CACHE_SHIFT_7
759	help
760	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
761	  kernel that runs on these, say Y here.
762
763config SGI_IP30
764	bool "SGI IP30 (Octane/Octane2)"
765	select ARCH_HAS_PHYS_TO_DMA
766	select FW_ARC
767	select FW_ARC64
768	select BOOT_ELF64
769	select CEVT_R4K
770	select CSRC_R4K
771	select SYNC_R4K if SMP
772	select ZONE_DMA32
773	select HAVE_PCI
774	select IRQ_MIPS_CPU
775	select IRQ_DOMAIN_HIERARCHY
776	select NR_CPUS_DEFAULT_2
777	select PCI_DRIVERS_GENERIC
778	select PCI_XTALK_BRIDGE
779	select SYS_HAS_EARLY_PRINTK
780	select SYS_HAS_CPU_R10000
781	select SYS_SUPPORTS_64BIT_KERNEL
782	select SYS_SUPPORTS_BIG_ENDIAN
783	select SYS_SUPPORTS_SMP
784	select MIPS_L1_CACHE_SHIFT_7
785	select ARC_MEMORY
786	help
787	  These are the SGI Octane and Octane2 graphics workstations.  To
788	  compile a Linux kernel that runs on these, say Y here.
789
790config SGI_IP32
791	bool "SGI IP32 (O2)"
792	select ARC_MEMORY
793	select ARC_PROMLIB
794	select ARCH_HAS_PHYS_TO_DMA
795	select FW_ARC
796	select FW_ARC32
797	select BOOT_ELF32
798	select CEVT_R4K
799	select CSRC_R4K
800	select DMA_NONCOHERENT
801	select HAVE_PCI
802	select IRQ_MIPS_CPU
803	select R5000_CPU_SCACHE
804	select RM7000_CPU_SCACHE
805	select SYS_HAS_CPU_R5000
806	select SYS_HAS_CPU_R10000 if BROKEN
807	select SYS_HAS_CPU_RM7000
808	select SYS_HAS_CPU_NEVADA
809	select SYS_SUPPORTS_64BIT_KERNEL
810	select SYS_SUPPORTS_BIG_ENDIAN
811	help
812	  If you want this kernel to run on SGI O2 workstation, say Y here.
813
814config SIBYTE_CRHINE
815	bool "Sibyte BCM91120C-CRhine"
816	select BOOT_ELF32
817	select SIBYTE_BCM1120
818	select SWAP_IO_SPACE
819	select SYS_HAS_CPU_SB1
820	select SYS_SUPPORTS_BIG_ENDIAN
821	select SYS_SUPPORTS_LITTLE_ENDIAN
822
823config SIBYTE_CARMEL
824	bool "Sibyte BCM91120x-Carmel"
825	select BOOT_ELF32
826	select SIBYTE_BCM1120
827	select SWAP_IO_SPACE
828	select SYS_HAS_CPU_SB1
829	select SYS_SUPPORTS_BIG_ENDIAN
830	select SYS_SUPPORTS_LITTLE_ENDIAN
831
832config SIBYTE_CRHONE
833	bool "Sibyte BCM91125C-CRhone"
834	select BOOT_ELF32
835	select SIBYTE_BCM1125
836	select SWAP_IO_SPACE
837	select SYS_HAS_CPU_SB1
838	select SYS_SUPPORTS_BIG_ENDIAN
839	select SYS_SUPPORTS_HIGHMEM
840	select SYS_SUPPORTS_LITTLE_ENDIAN
841
842config SIBYTE_RHONE
843	bool "Sibyte BCM91125E-Rhone"
844	select BOOT_ELF32
845	select SIBYTE_BCM1125H
846	select SWAP_IO_SPACE
847	select SYS_HAS_CPU_SB1
848	select SYS_SUPPORTS_BIG_ENDIAN
849	select SYS_SUPPORTS_LITTLE_ENDIAN
850
851config SIBYTE_SWARM
852	bool "Sibyte BCM91250A-SWARM"
853	select BOOT_ELF32
854	select HAVE_PATA_PLATFORM
855	select SIBYTE_SB1250
856	select SWAP_IO_SPACE
857	select SYS_HAS_CPU_SB1
858	select SYS_SUPPORTS_BIG_ENDIAN
859	select SYS_SUPPORTS_HIGHMEM
860	select SYS_SUPPORTS_LITTLE_ENDIAN
861	select ZONE_DMA32 if 64BIT
862	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
863
864config SIBYTE_LITTLESUR
865	bool "Sibyte BCM91250C2-LittleSur"
866	select BOOT_ELF32
867	select HAVE_PATA_PLATFORM
868	select SIBYTE_SB1250
869	select SWAP_IO_SPACE
870	select SYS_HAS_CPU_SB1
871	select SYS_SUPPORTS_BIG_ENDIAN
872	select SYS_SUPPORTS_HIGHMEM
873	select SYS_SUPPORTS_LITTLE_ENDIAN
874	select ZONE_DMA32 if 64BIT
875
876config SIBYTE_SENTOSA
877	bool "Sibyte BCM91250E-Sentosa"
878	select BOOT_ELF32
879	select SIBYTE_SB1250
880	select SWAP_IO_SPACE
881	select SYS_HAS_CPU_SB1
882	select SYS_SUPPORTS_BIG_ENDIAN
883	select SYS_SUPPORTS_LITTLE_ENDIAN
884	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
885
886config SIBYTE_BIGSUR
887	bool "Sibyte BCM91480B-BigSur"
888	select BOOT_ELF32
889	select NR_CPUS_DEFAULT_4
890	select SIBYTE_BCM1x80
891	select SWAP_IO_SPACE
892	select SYS_HAS_CPU_SB1
893	select SYS_SUPPORTS_BIG_ENDIAN
894	select SYS_SUPPORTS_HIGHMEM
895	select SYS_SUPPORTS_LITTLE_ENDIAN
896	select ZONE_DMA32 if 64BIT
897	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
898
899config SNI_RM
900	bool "SNI RM200/300/400"
901	select ARC_MEMORY
902	select ARC_PROMLIB
903	select FW_ARC if CPU_LITTLE_ENDIAN
904	select FW_ARC32 if CPU_LITTLE_ENDIAN
905	select FW_SNIPROM if CPU_BIG_ENDIAN
906	select ARCH_MAY_HAVE_PC_FDC
907	select ARCH_MIGHT_HAVE_PC_PARPORT
908	select ARCH_MIGHT_HAVE_PC_SERIO
909	select BOOT_ELF32
910	select CEVT_R4K
911	select CSRC_R4K
912	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
913	select DMA_NONCOHERENT
914	select GENERIC_ISA_DMA
915	select HAVE_EISA
916	select HAVE_PCSPKR_PLATFORM
917	select HAVE_PCI
918	select IRQ_MIPS_CPU
919	select I8253
920	select I8259
921	select ISA
922	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
923	select SYS_HAS_CPU_R4X00
924	select SYS_HAS_CPU_R5000
925	select SYS_HAS_CPU_R10000
926	select R5000_CPU_SCACHE
927	select SYS_HAS_EARLY_PRINTK
928	select SYS_SUPPORTS_32BIT_KERNEL
929	select SYS_SUPPORTS_64BIT_KERNEL
930	select SYS_SUPPORTS_BIG_ENDIAN
931	select SYS_SUPPORTS_HIGHMEM
932	select SYS_SUPPORTS_LITTLE_ENDIAN
933	help
934	  The SNI RM200/300/400 are MIPS-based machines manufactured by
935	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
936	  Technology and now in turn merged with Fujitsu.  Say Y here to
937	  support this machine type.
938
939config MACH_TX39XX
940	bool "Toshiba TX39 series based machines"
941
942config MACH_TX49XX
943	bool "Toshiba TX49 series based machines"
944
945config MIKROTIK_RB532
946	bool "Mikrotik RB532 boards"
947	select CEVT_R4K
948	select CSRC_R4K
949	select DMA_NONCOHERENT
950	select HAVE_PCI
951	select IRQ_MIPS_CPU
952	select SYS_HAS_CPU_MIPS32_R1
953	select SYS_SUPPORTS_32BIT_KERNEL
954	select SYS_SUPPORTS_LITTLE_ENDIAN
955	select SWAP_IO_SPACE
956	select BOOT_RAW
957	select GPIOLIB
958	select MIPS_L1_CACHE_SHIFT_4
959	help
960	  Support the Mikrotik(tm) RouterBoard 532 series,
961	  based on the IDT RC32434 SoC.
962
963config CAVIUM_OCTEON_SOC
964	bool "Cavium Networks Octeon SoC based boards"
965	select CEVT_R4K
966	select ARCH_HAS_PHYS_TO_DMA
967	select HAVE_RAPIDIO
968	select PHYS_ADDR_T_64BIT
969	select SYS_SUPPORTS_64BIT_KERNEL
970	select SYS_SUPPORTS_BIG_ENDIAN
971	select EDAC_SUPPORT
972	select EDAC_ATOMIC_SCRUB
973	select SYS_SUPPORTS_LITTLE_ENDIAN
974	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
975	select SYS_HAS_EARLY_PRINTK
976	select SYS_HAS_CPU_CAVIUM_OCTEON
977	select HAVE_PCI
978	select HAVE_PLAT_DELAY
979	select HAVE_PLAT_FW_INIT_CMDLINE
980	select HAVE_PLAT_MEMCPY
981	select ZONE_DMA32
982	select HOLES_IN_ZONE
983	select GPIOLIB
984	select USE_OF
985	select ARCH_SPARSEMEM_ENABLE
986	select SYS_SUPPORTS_SMP
987	select NR_CPUS_DEFAULT_64
988	select MIPS_NR_CPU_NR_MAP_1024
989	select BUILTIN_DTB
990	select MTD_COMPLEX_MAPPINGS
991	select SWIOTLB
992	select SYS_SUPPORTS_RELOCATABLE
993	help
994	  This option supports all of the Octeon reference boards from Cavium
995	  Networks. It builds a kernel that dynamically determines the Octeon
996	  CPU type and supports all known board reference implementations.
997	  Some of the supported boards are:
998		EBT3000
999		EBH3000
1000		EBH3100
1001		Thunder
1002		Kodama
1003		Hikari
1004	  Say Y here for most Octeon reference boards.
1005
1006config NLM_XLR_BOARD
1007	bool "Netlogic XLR/XLS based systems"
1008	select BOOT_ELF32
1009	select NLM_COMMON
1010	select SYS_HAS_CPU_XLR
1011	select SYS_SUPPORTS_SMP
1012	select HAVE_PCI
1013	select SWAP_IO_SPACE
1014	select SYS_SUPPORTS_32BIT_KERNEL
1015	select SYS_SUPPORTS_64BIT_KERNEL
1016	select PHYS_ADDR_T_64BIT
1017	select SYS_SUPPORTS_BIG_ENDIAN
1018	select SYS_SUPPORTS_HIGHMEM
1019	select NR_CPUS_DEFAULT_32
1020	select CEVT_R4K
1021	select CSRC_R4K
1022	select IRQ_MIPS_CPU
1023	select ZONE_DMA32 if 64BIT
1024	select SYNC_R4K
1025	select SYS_HAS_EARLY_PRINTK
1026	select SYS_SUPPORTS_ZBOOT
1027	select SYS_SUPPORTS_ZBOOT_UART16550
1028	help
1029	  Support for systems based on Netlogic XLR and XLS processors.
1030	  Say Y here if you have a XLR or XLS based board.
1031
1032config NLM_XLP_BOARD
1033	bool "Netlogic XLP based systems"
1034	select BOOT_ELF32
1035	select NLM_COMMON
1036	select SYS_HAS_CPU_XLP
1037	select SYS_SUPPORTS_SMP
1038	select HAVE_PCI
1039	select SYS_SUPPORTS_32BIT_KERNEL
1040	select SYS_SUPPORTS_64BIT_KERNEL
1041	select PHYS_ADDR_T_64BIT
1042	select GPIOLIB
1043	select SYS_SUPPORTS_BIG_ENDIAN
1044	select SYS_SUPPORTS_LITTLE_ENDIAN
1045	select SYS_SUPPORTS_HIGHMEM
1046	select NR_CPUS_DEFAULT_32
1047	select CEVT_R4K
1048	select CSRC_R4K
1049	select IRQ_MIPS_CPU
1050	select ZONE_DMA32 if 64BIT
1051	select SYNC_R4K
1052	select SYS_HAS_EARLY_PRINTK
1053	select USE_OF
1054	select SYS_SUPPORTS_ZBOOT
1055	select SYS_SUPPORTS_ZBOOT_UART16550
1056	help
1057	  This board is based on Netlogic XLP Processor.
1058	  Say Y here if you have a XLP based board.
1059
1060config MIPS_PARAVIRT
1061	bool "Para-Virtualized guest system"
1062	select CEVT_R4K
1063	select CSRC_R4K
1064	select SYS_SUPPORTS_64BIT_KERNEL
1065	select SYS_SUPPORTS_32BIT_KERNEL
1066	select SYS_SUPPORTS_BIG_ENDIAN
1067	select SYS_SUPPORTS_SMP
1068	select NR_CPUS_DEFAULT_4
1069	select SYS_HAS_EARLY_PRINTK
1070	select SYS_HAS_CPU_MIPS32_R2
1071	select SYS_HAS_CPU_MIPS64_R2
1072	select SYS_HAS_CPU_CAVIUM_OCTEON
1073	select HAVE_PCI
1074	select SWAP_IO_SPACE
1075	help
1076	  This option supports guest running under ????
1077
1078endchoice
1079
1080source "arch/mips/alchemy/Kconfig"
1081source "arch/mips/ath25/Kconfig"
1082source "arch/mips/ath79/Kconfig"
1083source "arch/mips/bcm47xx/Kconfig"
1084source "arch/mips/bcm63xx/Kconfig"
1085source "arch/mips/bmips/Kconfig"
1086source "arch/mips/generic/Kconfig"
1087source "arch/mips/jazz/Kconfig"
1088source "arch/mips/jz4740/Kconfig"
1089source "arch/mips/lantiq/Kconfig"
1090source "arch/mips/lasat/Kconfig"
1091source "arch/mips/pic32/Kconfig"
1092source "arch/mips/pistachio/Kconfig"
1093source "arch/mips/pmcs-msp71xx/Kconfig"
1094source "arch/mips/ralink/Kconfig"
1095source "arch/mips/sgi-ip27/Kconfig"
1096source "arch/mips/sibyte/Kconfig"
1097source "arch/mips/txx9/Kconfig"
1098source "arch/mips/vr41xx/Kconfig"
1099source "arch/mips/cavium-octeon/Kconfig"
1100source "arch/mips/loongson2ef/Kconfig"
1101source "arch/mips/loongson32/Kconfig"
1102source "arch/mips/loongson64/Kconfig"
1103source "arch/mips/netlogic/Kconfig"
1104source "arch/mips/paravirt/Kconfig"
1105
1106endmenu
1107
1108config GENERIC_HWEIGHT
1109	bool
1110	default y
1111
1112config GENERIC_CALIBRATE_DELAY
1113	bool
1114	default y
1115
1116config SCHED_OMIT_FRAME_POINTER
1117	bool
1118	default y
1119
1120#
1121# Select some configuration options automatically based on user selections.
1122#
1123config FW_ARC
1124	bool
1125
1126config ARCH_MAY_HAVE_PC_FDC
1127	bool
1128
1129config BOOT_RAW
1130	bool
1131
1132config CEVT_BCM1480
1133	bool
1134
1135config CEVT_DS1287
1136	bool
1137
1138config CEVT_GT641XX
1139	bool
1140
1141config CEVT_R4K
1142	bool
1143
1144config CEVT_SB1250
1145	bool
1146
1147config CEVT_TXX9
1148	bool
1149
1150config CSRC_BCM1480
1151	bool
1152
1153config CSRC_IOASIC
1154	bool
1155
1156config CSRC_R4K
1157	bool
1158
1159config CSRC_SB1250
1160	bool
1161
1162config MIPS_CLOCK_VSYSCALL
1163	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1164
1165config GPIO_TXX9
1166	select GPIOLIB
1167	bool
1168
1169config FW_CFE
1170	bool
1171
1172config ARCH_SUPPORTS_UPROBES
1173	bool
1174
1175config DMA_MAYBE_COHERENT
1176	select ARCH_HAS_DMA_COHERENCE_H
1177	select DMA_NONCOHERENT
1178	bool
1179
1180config DMA_PERDEV_COHERENT
1181	bool
1182	select ARCH_HAS_SETUP_DMA_OPS
1183	select DMA_NONCOHERENT
1184
1185config DMA_NONCOHERENT
1186	bool
1187	#
1188	# MIPS allows mixing "slightly different" Cacheability and Coherency
1189	# Attribute bits.  It is believed that the uncached access through
1190	# KSEG1 and the implementation specific "uncached accelerated" used
1191	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1192	# significant advantages.
1193	#
1194	select ARCH_HAS_DMA_WRITE_COMBINE
1195	select ARCH_HAS_DMA_PREP_COHERENT
1196	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1197	select ARCH_HAS_DMA_SET_UNCACHED
1198	select DMA_NONCOHERENT_MMAP
1199	select DMA_NONCOHERENT_CACHE_SYNC
1200	select NEED_DMA_MAP_STATE
1201
1202config SYS_HAS_EARLY_PRINTK
1203	bool
1204
1205config SYS_SUPPORTS_HOTPLUG_CPU
1206	bool
1207
1208config MIPS_BONITO64
1209	bool
1210
1211config MIPS_MSC
1212	bool
1213
1214config MIPS_NILE4
1215	bool
1216
1217config SYNC_R4K
1218	bool
1219
1220config MIPS_MACHINE
1221	def_bool n
1222
1223config NO_IOPORT_MAP
1224	def_bool n
1225
1226config GENERIC_CSUM
1227	def_bool CPU_NO_LOAD_STORE_LR
1228
1229config GENERIC_ISA_DMA
1230	bool
1231	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1232	select ISA_DMA_API
1233
1234config GENERIC_ISA_DMA_SUPPORT_BROKEN
1235	bool
1236	select GENERIC_ISA_DMA
1237
1238config HAVE_PLAT_DELAY
1239	bool
1240
1241config HAVE_PLAT_FW_INIT_CMDLINE
1242	bool
1243
1244config HAVE_PLAT_MEMCPY
1245	bool
1246
1247config ISA_DMA_API
1248	bool
1249
1250config HOLES_IN_ZONE
1251	bool
1252
1253config SYS_SUPPORTS_RELOCATABLE
1254	bool
1255	help
1256	  Selected if the platform supports relocating the kernel.
1257	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1258	  to allow access to command line and entropy sources.
1259
1260config MIPS_CBPF_JIT
1261	def_bool y
1262	depends on BPF_JIT && HAVE_CBPF_JIT
1263
1264config MIPS_EBPF_JIT
1265	def_bool y
1266	depends on BPF_JIT && HAVE_EBPF_JIT
1267
1268
1269#
1270# Endianness selection.  Sufficiently obscure so many users don't know what to
1271# answer,so we try hard to limit the available choices.  Also the use of a
1272# choice statement should be more obvious to the user.
1273#
1274choice
1275	prompt "Endianness selection"
1276	help
1277	  Some MIPS machines can be configured for either little or big endian
1278	  byte order. These modes require different kernels and a different
1279	  Linux distribution.  In general there is one preferred byteorder for a
1280	  particular system but some systems are just as commonly used in the
1281	  one or the other endianness.
1282
1283config CPU_BIG_ENDIAN
1284	bool "Big endian"
1285	depends on SYS_SUPPORTS_BIG_ENDIAN
1286
1287config CPU_LITTLE_ENDIAN
1288	bool "Little endian"
1289	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1290
1291endchoice
1292
1293config EXPORT_UASM
1294	bool
1295
1296config SYS_SUPPORTS_APM_EMULATION
1297	bool
1298
1299config SYS_SUPPORTS_BIG_ENDIAN
1300	bool
1301
1302config SYS_SUPPORTS_LITTLE_ENDIAN
1303	bool
1304
1305config SYS_SUPPORTS_HUGETLBFS
1306	bool
1307	depends on CPU_SUPPORTS_HUGEPAGES
1308	default y
1309
1310config MIPS_HUGE_TLB_SUPPORT
1311	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1312
1313config IRQ_CPU_RM7K
1314	bool
1315
1316config IRQ_MSP_SLP
1317	bool
1318
1319config IRQ_MSP_CIC
1320	bool
1321
1322config IRQ_TXX9
1323	bool
1324
1325config IRQ_GT641XX
1326	bool
1327
1328config PCI_GT64XXX_PCI0
1329	bool
1330
1331config PCI_XTALK_BRIDGE
1332	bool
1333
1334config NO_EXCEPT_FILL
1335	bool
1336
1337config SOC_EMMA2RH
1338	bool
1339	select CEVT_R4K
1340	select CSRC_R4K
1341	select DMA_NONCOHERENT
1342	select IRQ_MIPS_CPU
1343	select SWAP_IO_SPACE
1344	select SYS_HAS_CPU_R5500
1345	select SYS_SUPPORTS_32BIT_KERNEL
1346	select SYS_SUPPORTS_64BIT_KERNEL
1347	select SYS_SUPPORTS_BIG_ENDIAN
1348
1349config SOC_PNX833X
1350	bool
1351	select CEVT_R4K
1352	select CSRC_R4K
1353	select IRQ_MIPS_CPU
1354	select DMA_NONCOHERENT
1355	select SYS_HAS_CPU_MIPS32_R2
1356	select SYS_SUPPORTS_32BIT_KERNEL
1357	select SYS_SUPPORTS_LITTLE_ENDIAN
1358	select SYS_SUPPORTS_BIG_ENDIAN
1359	select SYS_SUPPORTS_MIPS16
1360	select CPU_MIPSR2_IRQ_VI
1361
1362config SOC_PNX8335
1363	bool
1364	select SOC_PNX833X
1365
1366config MIPS_SPRAM
1367	bool
1368
1369config SWAP_IO_SPACE
1370	bool
1371
1372config SGI_HAS_INDYDOG
1373	bool
1374
1375config SGI_HAS_HAL2
1376	bool
1377
1378config SGI_HAS_SEEQ
1379	bool
1380
1381config SGI_HAS_WD93
1382	bool
1383
1384config SGI_HAS_ZILOG
1385	bool
1386
1387config SGI_HAS_I8042
1388	bool
1389
1390config DEFAULT_SGI_PARTITION
1391	bool
1392
1393config FW_ARC32
1394	bool
1395
1396config FW_SNIPROM
1397	bool
1398
1399config BOOT_ELF32
1400	bool
1401
1402config MIPS_L1_CACHE_SHIFT_4
1403	bool
1404
1405config MIPS_L1_CACHE_SHIFT_5
1406	bool
1407
1408config MIPS_L1_CACHE_SHIFT_6
1409	bool
1410
1411config MIPS_L1_CACHE_SHIFT_7
1412	bool
1413
1414config MIPS_L1_CACHE_SHIFT
1415	int
1416	default "7" if MIPS_L1_CACHE_SHIFT_7
1417	default "6" if MIPS_L1_CACHE_SHIFT_6
1418	default "5" if MIPS_L1_CACHE_SHIFT_5
1419	default "4" if MIPS_L1_CACHE_SHIFT_4
1420	default "5"
1421
1422config HAVE_STD_PC_SERIAL_PORT
1423	bool
1424
1425config ARC_CMDLINE_ONLY
1426	bool
1427
1428config ARC_CONSOLE
1429	bool "ARC console support"
1430	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1431
1432config ARC_MEMORY
1433	bool
1434
1435config ARC_PROMLIB
1436	bool
1437
1438config FW_ARC64
1439	bool
1440
1441config BOOT_ELF64
1442	bool
1443
1444menu "CPU selection"
1445
1446choice
1447	prompt "CPU type"
1448	default CPU_R4X00
1449
1450config CPU_LOONGSON64
1451	bool "Loongson 64-bit CPU"
1452	depends on SYS_HAS_CPU_LOONGSON64
1453	select ARCH_HAS_PHYS_TO_DMA
1454	select CPU_MIPSR2
1455	select CPU_HAS_PREFETCH
1456	select CPU_SUPPORTS_64BIT_KERNEL
1457	select CPU_SUPPORTS_HIGHMEM
1458	select CPU_SUPPORTS_HUGEPAGES
1459	select CPU_SUPPORTS_MSA
1460	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1461	select CPU_MIPSR2_IRQ_VI
1462	select WEAK_ORDERING
1463	select WEAK_REORDERING_BEYOND_LLSC
1464	select MIPS_ASID_BITS_VARIABLE
1465	select MIPS_PGD_C0_CONTEXT
1466	select MIPS_L1_CACHE_SHIFT_6
1467	select GPIOLIB
1468	select SWIOTLB
1469	help
1470		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1471		cores implements the MIPS64R2 instruction set with many extensions,
1472		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1473		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1474		Loongson-2E/2F is not covered here and will be removed in future.
1475
1476config LOONGSON3_ENHANCEMENT
1477	bool "New Loongson-3 CPU Enhancements"
1478	default n
1479	depends on CPU_LOONGSON64
1480	help
1481	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1482	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1483	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1484	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1485	  Fast TLB refill support, etc.
1486
1487	  This option enable those enhancements which are not probed at run
1488	  time. If you want a generic kernel to run on all Loongson 3 machines,
1489	  please say 'N' here. If you want a high-performance kernel to run on
1490	  new Loongson-3 machines only, please say 'Y' here.
1491
1492config CPU_LOONGSON3_WORKAROUNDS
1493	bool "Old Loongson-3 LLSC Workarounds"
1494	default y if SMP
1495	depends on CPU_LOONGSON64
1496	help
1497	  Loongson-3 processors have the llsc issues which require workarounds.
1498	  Without workarounds the system may hang unexpectedly.
1499
1500	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1501	  The workarounds have no significant side effect on them but may
1502	  decrease the performance of the system so this option should be
1503	  disabled unless the kernel is intended to be run on old systems.
1504
1505	  If unsure, please say Y.
1506
1507config CPU_LOONGSON2E
1508	bool "Loongson 2E"
1509	depends on SYS_HAS_CPU_LOONGSON2E
1510	select CPU_LOONGSON2EF
1511	help
1512	  The Loongson 2E processor implements the MIPS III instruction set
1513	  with many extensions.
1514
1515	  It has an internal FPGA northbridge, which is compatible to
1516	  bonito64.
1517
1518config CPU_LOONGSON2F
1519	bool "Loongson 2F"
1520	depends on SYS_HAS_CPU_LOONGSON2F
1521	select CPU_LOONGSON2EF
1522	select GPIOLIB
1523	help
1524	  The Loongson 2F processor implements the MIPS III instruction set
1525	  with many extensions.
1526
1527	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1528	  have a similar programming interface with FPGA northbridge used in
1529	  Loongson2E.
1530
1531config CPU_LOONGSON1B
1532	bool "Loongson 1B"
1533	depends on SYS_HAS_CPU_LOONGSON1B
1534	select CPU_LOONGSON32
1535	select LEDS_GPIO_REGISTER
1536	help
1537	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1538	  Release 1 instruction set and part of the MIPS32 Release 2
1539	  instruction set.
1540
1541config CPU_LOONGSON1C
1542	bool "Loongson 1C"
1543	depends on SYS_HAS_CPU_LOONGSON1C
1544	select CPU_LOONGSON32
1545	select LEDS_GPIO_REGISTER
1546	help
1547	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1548	  Release 1 instruction set and part of the MIPS32 Release 2
1549	  instruction set.
1550
1551config CPU_MIPS32_R1
1552	bool "MIPS32 Release 1"
1553	depends on SYS_HAS_CPU_MIPS32_R1
1554	select CPU_HAS_PREFETCH
1555	select CPU_SUPPORTS_32BIT_KERNEL
1556	select CPU_SUPPORTS_HIGHMEM
1557	help
1558	  Choose this option to build a kernel for release 1 or later of the
1559	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1560	  MIPS processor are based on a MIPS32 processor.  If you know the
1561	  specific type of processor in your system, choose those that one
1562	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1563	  Release 2 of the MIPS32 architecture is available since several
1564	  years so chances are you even have a MIPS32 Release 2 processor
1565	  in which case you should choose CPU_MIPS32_R2 instead for better
1566	  performance.
1567
1568config CPU_MIPS32_R2
1569	bool "MIPS32 Release 2"
1570	depends on SYS_HAS_CPU_MIPS32_R2
1571	select CPU_HAS_PREFETCH
1572	select CPU_SUPPORTS_32BIT_KERNEL
1573	select CPU_SUPPORTS_HIGHMEM
1574	select CPU_SUPPORTS_MSA
1575	select HAVE_KVM
1576	help
1577	  Choose this option to build a kernel for release 2 or later of the
1578	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1579	  MIPS processor are based on a MIPS32 processor.  If you know the
1580	  specific type of processor in your system, choose those that one
1581	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1582
1583config CPU_MIPS32_R6
1584	bool "MIPS32 Release 6"
1585	depends on SYS_HAS_CPU_MIPS32_R6
1586	select CPU_HAS_PREFETCH
1587	select CPU_NO_LOAD_STORE_LR
1588	select CPU_SUPPORTS_32BIT_KERNEL
1589	select CPU_SUPPORTS_HIGHMEM
1590	select CPU_SUPPORTS_MSA
1591	select HAVE_KVM
1592	select MIPS_O32_FP64_SUPPORT
1593	help
1594	  Choose this option to build a kernel for release 6 or later of the
1595	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1596	  family, are based on a MIPS32r6 processor. If you own an older
1597	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1598
1599config CPU_MIPS64_R1
1600	bool "MIPS64 Release 1"
1601	depends on SYS_HAS_CPU_MIPS64_R1
1602	select CPU_HAS_PREFETCH
1603	select CPU_SUPPORTS_32BIT_KERNEL
1604	select CPU_SUPPORTS_64BIT_KERNEL
1605	select CPU_SUPPORTS_HIGHMEM
1606	select CPU_SUPPORTS_HUGEPAGES
1607	help
1608	  Choose this option to build a kernel for release 1 or later of the
1609	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1610	  MIPS processor are based on a MIPS64 processor.  If you know the
1611	  specific type of processor in your system, choose those that one
1612	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1613	  Release 2 of the MIPS64 architecture is available since several
1614	  years so chances are you even have a MIPS64 Release 2 processor
1615	  in which case you should choose CPU_MIPS64_R2 instead for better
1616	  performance.
1617
1618config CPU_MIPS64_R2
1619	bool "MIPS64 Release 2"
1620	depends on SYS_HAS_CPU_MIPS64_R2
1621	select CPU_HAS_PREFETCH
1622	select CPU_SUPPORTS_32BIT_KERNEL
1623	select CPU_SUPPORTS_64BIT_KERNEL
1624	select CPU_SUPPORTS_HIGHMEM
1625	select CPU_SUPPORTS_HUGEPAGES
1626	select CPU_SUPPORTS_MSA
1627	select HAVE_KVM
1628	help
1629	  Choose this option to build a kernel for release 2 or later of the
1630	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1631	  MIPS processor are based on a MIPS64 processor.  If you know the
1632	  specific type of processor in your system, choose those that one
1633	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1634
1635config CPU_MIPS64_R6
1636	bool "MIPS64 Release 6"
1637	depends on SYS_HAS_CPU_MIPS64_R6
1638	select CPU_HAS_PREFETCH
1639	select CPU_NO_LOAD_STORE_LR
1640	select CPU_SUPPORTS_32BIT_KERNEL
1641	select CPU_SUPPORTS_64BIT_KERNEL
1642	select CPU_SUPPORTS_HIGHMEM
1643	select CPU_SUPPORTS_HUGEPAGES
1644	select CPU_SUPPORTS_MSA
1645	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1646	select HAVE_KVM
1647	help
1648	  Choose this option to build a kernel for release 6 or later of the
1649	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1650	  family, are based on a MIPS64r6 processor. If you own an older
1651	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1652
1653config CPU_R3000
1654	bool "R3000"
1655	depends on SYS_HAS_CPU_R3000
1656	select CPU_HAS_WB
1657	select CPU_R3K_TLB
1658	select CPU_SUPPORTS_32BIT_KERNEL
1659	select CPU_SUPPORTS_HIGHMEM
1660	help
1661	  Please make sure to pick the right CPU type. Linux/MIPS is not
1662	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1663	  *not* work on R4000 machines and vice versa.  However, since most
1664	  of the supported machines have an R4000 (or similar) CPU, R4x00
1665	  might be a safe bet.  If the resulting kernel does not work,
1666	  try to recompile with R3000.
1667
1668config CPU_TX39XX
1669	bool "R39XX"
1670	depends on SYS_HAS_CPU_TX39XX
1671	select CPU_SUPPORTS_32BIT_KERNEL
1672	select CPU_R3K_TLB
1673
1674config CPU_VR41XX
1675	bool "R41xx"
1676	depends on SYS_HAS_CPU_VR41XX
1677	select CPU_SUPPORTS_32BIT_KERNEL
1678	select CPU_SUPPORTS_64BIT_KERNEL
1679	help
1680	  The options selects support for the NEC VR4100 series of processors.
1681	  Only choose this option if you have one of these processors as a
1682	  kernel built with this option will not run on any other type of
1683	  processor or vice versa.
1684
1685config CPU_R4X00
1686	bool "R4x00"
1687	depends on SYS_HAS_CPU_R4X00
1688	select CPU_SUPPORTS_32BIT_KERNEL
1689	select CPU_SUPPORTS_64BIT_KERNEL
1690	select CPU_SUPPORTS_HUGEPAGES
1691	help
1692	  MIPS Technologies R4000-series processors other than 4300, including
1693	  the R4000, R4400, R4600, and 4700.
1694
1695config CPU_TX49XX
1696	bool "R49XX"
1697	depends on SYS_HAS_CPU_TX49XX
1698	select CPU_HAS_PREFETCH
1699	select CPU_SUPPORTS_32BIT_KERNEL
1700	select CPU_SUPPORTS_64BIT_KERNEL
1701	select CPU_SUPPORTS_HUGEPAGES
1702
1703config CPU_R5000
1704	bool "R5000"
1705	depends on SYS_HAS_CPU_R5000
1706	select CPU_SUPPORTS_32BIT_KERNEL
1707	select CPU_SUPPORTS_64BIT_KERNEL
1708	select CPU_SUPPORTS_HUGEPAGES
1709	help
1710	  MIPS Technologies R5000-series processors other than the Nevada.
1711
1712config CPU_R5500
1713	bool "R5500"
1714	depends on SYS_HAS_CPU_R5500
1715	select CPU_SUPPORTS_32BIT_KERNEL
1716	select CPU_SUPPORTS_64BIT_KERNEL
1717	select CPU_SUPPORTS_HUGEPAGES
1718	help
1719	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1720	  instruction set.
1721
1722config CPU_NEVADA
1723	bool "RM52xx"
1724	depends on SYS_HAS_CPU_NEVADA
1725	select CPU_SUPPORTS_32BIT_KERNEL
1726	select CPU_SUPPORTS_64BIT_KERNEL
1727	select CPU_SUPPORTS_HUGEPAGES
1728	help
1729	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1730
1731config CPU_R10000
1732	bool "R10000"
1733	depends on SYS_HAS_CPU_R10000
1734	select CPU_HAS_PREFETCH
1735	select CPU_SUPPORTS_32BIT_KERNEL
1736	select CPU_SUPPORTS_64BIT_KERNEL
1737	select CPU_SUPPORTS_HIGHMEM
1738	select CPU_SUPPORTS_HUGEPAGES
1739	help
1740	  MIPS Technologies R10000-series processors.
1741
1742config CPU_RM7000
1743	bool "RM7000"
1744	depends on SYS_HAS_CPU_RM7000
1745	select CPU_HAS_PREFETCH
1746	select CPU_SUPPORTS_32BIT_KERNEL
1747	select CPU_SUPPORTS_64BIT_KERNEL
1748	select CPU_SUPPORTS_HIGHMEM
1749	select CPU_SUPPORTS_HUGEPAGES
1750
1751config CPU_SB1
1752	bool "SB1"
1753	depends on SYS_HAS_CPU_SB1
1754	select CPU_SUPPORTS_32BIT_KERNEL
1755	select CPU_SUPPORTS_64BIT_KERNEL
1756	select CPU_SUPPORTS_HIGHMEM
1757	select CPU_SUPPORTS_HUGEPAGES
1758	select WEAK_ORDERING
1759
1760config CPU_CAVIUM_OCTEON
1761	bool "Cavium Octeon processor"
1762	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1763	select CPU_HAS_PREFETCH
1764	select CPU_SUPPORTS_64BIT_KERNEL
1765	select WEAK_ORDERING
1766	select CPU_SUPPORTS_HIGHMEM
1767	select CPU_SUPPORTS_HUGEPAGES
1768	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1769	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1770	select MIPS_L1_CACHE_SHIFT_7
1771	select HAVE_KVM
1772	help
1773	  The Cavium Octeon processor is a highly integrated chip containing
1774	  many ethernet hardware widgets for networking tasks. The processor
1775	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1776	  Full details can be found at http://www.caviumnetworks.com.
1777
1778config CPU_BMIPS
1779	bool "Broadcom BMIPS"
1780	depends on SYS_HAS_CPU_BMIPS
1781	select CPU_MIPS32
1782	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1783	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1784	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1785	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1786	select CPU_SUPPORTS_32BIT_KERNEL
1787	select DMA_NONCOHERENT
1788	select IRQ_MIPS_CPU
1789	select SWAP_IO_SPACE
1790	select WEAK_ORDERING
1791	select CPU_SUPPORTS_HIGHMEM
1792	select CPU_HAS_PREFETCH
1793	select CPU_SUPPORTS_CPUFREQ
1794	select MIPS_EXTERNAL_TIMER
1795	help
1796	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1797
1798config CPU_XLR
1799	bool "Netlogic XLR SoC"
1800	depends on SYS_HAS_CPU_XLR
1801	select CPU_SUPPORTS_32BIT_KERNEL
1802	select CPU_SUPPORTS_64BIT_KERNEL
1803	select CPU_SUPPORTS_HIGHMEM
1804	select CPU_SUPPORTS_HUGEPAGES
1805	select WEAK_ORDERING
1806	select WEAK_REORDERING_BEYOND_LLSC
1807	help
1808	  Netlogic Microsystems XLR/XLS processors.
1809
1810config CPU_XLP
1811	bool "Netlogic XLP SoC"
1812	depends on SYS_HAS_CPU_XLP
1813	select CPU_SUPPORTS_32BIT_KERNEL
1814	select CPU_SUPPORTS_64BIT_KERNEL
1815	select CPU_SUPPORTS_HIGHMEM
1816	select WEAK_ORDERING
1817	select WEAK_REORDERING_BEYOND_LLSC
1818	select CPU_HAS_PREFETCH
1819	select CPU_MIPSR2
1820	select CPU_SUPPORTS_HUGEPAGES
1821	select MIPS_ASID_BITS_VARIABLE
1822	help
1823	  Netlogic Microsystems XLP processors.
1824endchoice
1825
1826config CPU_MIPS32_3_5_FEATURES
1827	bool "MIPS32 Release 3.5 Features"
1828	depends on SYS_HAS_CPU_MIPS32_R3_5
1829	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1830	help
1831	  Choose this option to build a kernel for release 2 or later of the
1832	  MIPS32 architecture including features from the 3.5 release such as
1833	  support for Enhanced Virtual Addressing (EVA).
1834
1835config CPU_MIPS32_3_5_EVA
1836	bool "Enhanced Virtual Addressing (EVA)"
1837	depends on CPU_MIPS32_3_5_FEATURES
1838	select EVA
1839	default y
1840	help
1841	  Choose this option if you want to enable the Enhanced Virtual
1842	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1843	  One of its primary benefits is an increase in the maximum size
1844	  of lowmem (up to 3GB). If unsure, say 'N' here.
1845
1846config CPU_MIPS32_R5_FEATURES
1847	bool "MIPS32 Release 5 Features"
1848	depends on SYS_HAS_CPU_MIPS32_R5
1849	depends on CPU_MIPS32_R2
1850	help
1851	  Choose this option to build a kernel for release 2 or later of the
1852	  MIPS32 architecture including features from release 5 such as
1853	  support for Extended Physical Addressing (XPA).
1854
1855config CPU_MIPS32_R5_XPA
1856	bool "Extended Physical Addressing (XPA)"
1857	depends on CPU_MIPS32_R5_FEATURES
1858	depends on !EVA
1859	depends on !PAGE_SIZE_4KB
1860	depends on SYS_SUPPORTS_HIGHMEM
1861	select XPA
1862	select HIGHMEM
1863	select PHYS_ADDR_T_64BIT
1864	default n
1865	help
1866	  Choose this option if you want to enable the Extended Physical
1867	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1868	  benefit is to increase physical addressing equal to or greater
1869	  than 40 bits. Note that this has the side effect of turning on
1870	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1871	  If unsure, say 'N' here.
1872
1873if CPU_LOONGSON2F
1874config CPU_NOP_WORKAROUNDS
1875	bool
1876
1877config CPU_JUMP_WORKAROUNDS
1878	bool
1879
1880config CPU_LOONGSON2F_WORKAROUNDS
1881	bool "Loongson 2F Workarounds"
1882	default y
1883	select CPU_NOP_WORKAROUNDS
1884	select CPU_JUMP_WORKAROUNDS
1885	help
1886	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1887	  require workarounds.  Without workarounds the system may hang
1888	  unexpectedly.  For more information please refer to the gas
1889	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1890
1891	  Loongson 2F03 and later have fixed these issues and no workarounds
1892	  are needed.  The workarounds have no significant side effect on them
1893	  but may decrease the performance of the system so this option should
1894	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1895	  systems.
1896
1897	  If unsure, please say Y.
1898endif # CPU_LOONGSON2F
1899
1900config SYS_SUPPORTS_ZBOOT
1901	bool
1902	select HAVE_KERNEL_GZIP
1903	select HAVE_KERNEL_BZIP2
1904	select HAVE_KERNEL_LZ4
1905	select HAVE_KERNEL_LZMA
1906	select HAVE_KERNEL_LZO
1907	select HAVE_KERNEL_XZ
1908
1909config SYS_SUPPORTS_ZBOOT_UART16550
1910	bool
1911	select SYS_SUPPORTS_ZBOOT
1912
1913config SYS_SUPPORTS_ZBOOT_UART_PROM
1914	bool
1915	select SYS_SUPPORTS_ZBOOT
1916
1917config CPU_LOONGSON2EF
1918	bool
1919	select CPU_SUPPORTS_32BIT_KERNEL
1920	select CPU_SUPPORTS_64BIT_KERNEL
1921	select CPU_SUPPORTS_HIGHMEM
1922	select CPU_SUPPORTS_HUGEPAGES
1923	select ARCH_HAS_PHYS_TO_DMA
1924
1925config CPU_LOONGSON32
1926	bool
1927	select CPU_MIPS32
1928	select CPU_MIPSR2
1929	select CPU_HAS_PREFETCH
1930	select CPU_SUPPORTS_32BIT_KERNEL
1931	select CPU_SUPPORTS_HIGHMEM
1932	select CPU_SUPPORTS_CPUFREQ
1933
1934config CPU_BMIPS32_3300
1935	select SMP_UP if SMP
1936	bool
1937
1938config CPU_BMIPS4350
1939	bool
1940	select SYS_SUPPORTS_SMP
1941	select SYS_SUPPORTS_HOTPLUG_CPU
1942
1943config CPU_BMIPS4380
1944	bool
1945	select MIPS_L1_CACHE_SHIFT_6
1946	select SYS_SUPPORTS_SMP
1947	select SYS_SUPPORTS_HOTPLUG_CPU
1948	select CPU_HAS_RIXI
1949
1950config CPU_BMIPS5000
1951	bool
1952	select MIPS_CPU_SCACHE
1953	select MIPS_L1_CACHE_SHIFT_7
1954	select SYS_SUPPORTS_SMP
1955	select SYS_SUPPORTS_HOTPLUG_CPU
1956	select CPU_HAS_RIXI
1957
1958config SYS_HAS_CPU_LOONGSON64
1959	bool
1960	select CPU_SUPPORTS_CPUFREQ
1961	select CPU_HAS_RIXI
1962
1963config SYS_HAS_CPU_LOONGSON2E
1964	bool
1965
1966config SYS_HAS_CPU_LOONGSON2F
1967	bool
1968	select CPU_SUPPORTS_CPUFREQ
1969	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1970
1971config SYS_HAS_CPU_LOONGSON1B
1972	bool
1973
1974config SYS_HAS_CPU_LOONGSON1C
1975	bool
1976
1977config SYS_HAS_CPU_MIPS32_R1
1978	bool
1979
1980config SYS_HAS_CPU_MIPS32_R2
1981	bool
1982
1983config SYS_HAS_CPU_MIPS32_R3_5
1984	bool
1985
1986config SYS_HAS_CPU_MIPS32_R5
1987	bool
1988	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1989
1990config SYS_HAS_CPU_MIPS32_R6
1991	bool
1992	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1993
1994config SYS_HAS_CPU_MIPS64_R1
1995	bool
1996
1997config SYS_HAS_CPU_MIPS64_R2
1998	bool
1999
2000config SYS_HAS_CPU_MIPS64_R6
2001	bool
2002	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2003
2004config SYS_HAS_CPU_R3000
2005	bool
2006
2007config SYS_HAS_CPU_TX39XX
2008	bool
2009
2010config SYS_HAS_CPU_VR41XX
2011	bool
2012
2013config SYS_HAS_CPU_R4X00
2014	bool
2015
2016config SYS_HAS_CPU_TX49XX
2017	bool
2018
2019config SYS_HAS_CPU_R5000
2020	bool
2021
2022config SYS_HAS_CPU_R5500
2023	bool
2024
2025config SYS_HAS_CPU_NEVADA
2026	bool
2027
2028config SYS_HAS_CPU_R10000
2029	bool
2030	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2031
2032config SYS_HAS_CPU_RM7000
2033	bool
2034
2035config SYS_HAS_CPU_SB1
2036	bool
2037
2038config SYS_HAS_CPU_CAVIUM_OCTEON
2039	bool
2040
2041config SYS_HAS_CPU_BMIPS
2042	bool
2043
2044config SYS_HAS_CPU_BMIPS32_3300
2045	bool
2046	select SYS_HAS_CPU_BMIPS
2047
2048config SYS_HAS_CPU_BMIPS4350
2049	bool
2050	select SYS_HAS_CPU_BMIPS
2051
2052config SYS_HAS_CPU_BMIPS4380
2053	bool
2054	select SYS_HAS_CPU_BMIPS
2055
2056config SYS_HAS_CPU_BMIPS5000
2057	bool
2058	select SYS_HAS_CPU_BMIPS
2059	select ARCH_HAS_SYNC_DMA_FOR_CPU
2060
2061config SYS_HAS_CPU_XLR
2062	bool
2063
2064config SYS_HAS_CPU_XLP
2065	bool
2066
2067#
2068# CPU may reorder R->R, R->W, W->R, W->W
2069# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2070#
2071config WEAK_ORDERING
2072	bool
2073
2074#
2075# CPU may reorder reads and writes beyond LL/SC
2076# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2077#
2078config WEAK_REORDERING_BEYOND_LLSC
2079	bool
2080endmenu
2081
2082#
2083# These two indicate any level of the MIPS32 and MIPS64 architecture
2084#
2085config CPU_MIPS32
2086	bool
2087	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2088
2089config CPU_MIPS64
2090	bool
2091	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2092
2093#
2094# These indicate the revision of the architecture
2095#
2096config CPU_MIPSR1
2097	bool
2098	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2099
2100config CPU_MIPSR2
2101	bool
2102	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2103	select CPU_HAS_RIXI
2104	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2105	select MIPS_SPRAM
2106
2107config CPU_MIPSR6
2108	bool
2109	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2110	select CPU_HAS_RIXI
2111	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2112	select HAVE_ARCH_BITREVERSE
2113	select MIPS_ASID_BITS_VARIABLE
2114	select MIPS_CRC_SUPPORT
2115	select MIPS_SPRAM
2116
2117config TARGET_ISA_REV
2118	int
2119	default 1 if CPU_MIPSR1
2120	default 2 if CPU_MIPSR2
2121	default 6 if CPU_MIPSR6
2122	default 0
2123	help
2124	  Reflects the ISA revision being targeted by the kernel build. This
2125	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2126
2127config EVA
2128	bool
2129
2130config XPA
2131	bool
2132
2133config SYS_SUPPORTS_32BIT_KERNEL
2134	bool
2135config SYS_SUPPORTS_64BIT_KERNEL
2136	bool
2137config CPU_SUPPORTS_32BIT_KERNEL
2138	bool
2139config CPU_SUPPORTS_64BIT_KERNEL
2140	bool
2141config CPU_SUPPORTS_CPUFREQ
2142	bool
2143config CPU_SUPPORTS_ADDRWINCFG
2144	bool
2145config CPU_SUPPORTS_HUGEPAGES
2146	bool
2147	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2148config MIPS_PGD_C0_CONTEXT
2149	bool
2150	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2151
2152#
2153# Set to y for ptrace access to watch registers.
2154#
2155config HARDWARE_WATCHPOINTS
2156	bool
2157	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2158
2159menu "Kernel type"
2160
2161choice
2162	prompt "Kernel code model"
2163	help
2164	  You should only select this option if you have a workload that
2165	  actually benefits from 64-bit processing or if your machine has
2166	  large memory.  You will only be presented a single option in this
2167	  menu if your system does not support both 32-bit and 64-bit kernels.
2168
2169config 32BIT
2170	bool "32-bit kernel"
2171	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2172	select TRAD_SIGNALS
2173	help
2174	  Select this option if you want to build a 32-bit kernel.
2175
2176config 64BIT
2177	bool "64-bit kernel"
2178	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2179	help
2180	  Select this option if you want to build a 64-bit kernel.
2181
2182endchoice
2183
2184config KVM_GUEST
2185	bool "KVM Guest Kernel"
2186	depends on 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 && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2711	help
2712	  This builds a kernel image that retains relocation information
2713	  so it can be loaded someplace besides the default 1MB.
2714	  The relocations make the kernel binary about 15% larger,
2715	  but are discarded at runtime
2716
2717config RELOCATION_TABLE_SIZE
2718	hex "Relocation table size"
2719	depends on RELOCATABLE
2720	range 0x0 0x01000000
2721	default "0x00100000"
2722	---help---
2723	  A table of relocation data will be appended to the kernel binary
2724	  and parsed at boot to fix up the relocated kernel.
2725
2726	  This option allows the amount of space reserved for the table to be
2727	  adjusted, although the default of 1Mb should be ok in most cases.
2728
2729	  The build will fail and a valid size suggested if this is too small.
2730
2731	  If unsure, leave at the default value.
2732
2733config RANDOMIZE_BASE
2734	bool "Randomize the address of the kernel image"
2735	depends on RELOCATABLE
2736	---help---
2737	  Randomizes the physical and virtual address at which the
2738	  kernel image is loaded, as a security feature that
2739	  deters exploit attempts relying on knowledge of the location
2740	  of kernel internals.
2741
2742	  Entropy is generated using any coprocessor 0 registers available.
2743
2744	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2745
2746	  If unsure, say N.
2747
2748config RANDOMIZE_BASE_MAX_OFFSET
2749	hex "Maximum kASLR offset" if EXPERT
2750	depends on RANDOMIZE_BASE
2751	range 0x0 0x40000000 if EVA || 64BIT
2752	range 0x0 0x08000000
2753	default "0x01000000"
2754	---help---
2755	  When kASLR is active, this provides the maximum offset that will
2756	  be applied to the kernel image. It should be set according to the
2757	  amount of physical RAM available in the target system minus
2758	  PHYSICAL_START and must be a power of 2.
2759
2760	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2761	  EVA or 64-bit. The default is 16Mb.
2762
2763config NODES_SHIFT
2764	int
2765	default "6"
2766	depends on NEED_MULTIPLE_NODES
2767
2768config HW_PERF_EVENTS
2769	bool "Enable hardware performance counter support for perf events"
2770	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2771	default y
2772	help
2773	  Enable hardware performance counter support for perf events. If
2774	  disabled, perf events will use software events only.
2775
2776config DMI
2777	bool "Enable DMI scanning"
2778	depends on MACH_LOONGSON64
2779	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2780	default y
2781	help
2782	  Enabled scanning of DMI to identify machine quirks. Say Y
2783	  here unless you have verified that your setup is not
2784	  affected by entries in the DMI blacklist. Required by PNP
2785	  BIOS code.
2786
2787config SMP
2788	bool "Multi-Processing support"
2789	depends on SYS_SUPPORTS_SMP
2790	help
2791	  This enables support for systems with more than one CPU. If you have
2792	  a system with only one CPU, say N. If you have a system with more
2793	  than one CPU, say Y.
2794
2795	  If you say N here, the kernel will run on uni- and multiprocessor
2796	  machines, but will use only one CPU of a multiprocessor machine. If
2797	  you say Y here, the kernel will run on many, but not all,
2798	  uniprocessor machines. On a uniprocessor machine, the kernel
2799	  will run faster if you say N here.
2800
2801	  People using multiprocessor machines who say Y here should also say
2802	  Y to "Enhanced Real Time Clock Support", below.
2803
2804	  See also the SMP-HOWTO available at
2805	  <http://www.tldp.org/docs.html#howto>.
2806
2807	  If you don't know what to do here, say N.
2808
2809config HOTPLUG_CPU
2810	bool "Support for hot-pluggable CPUs"
2811	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2812	help
2813	  Say Y here to allow turning CPUs off and on. CPUs can be
2814	  controlled through /sys/devices/system/cpu.
2815	  (Note: power management support will enable this option
2816	    automatically on SMP systems. )
2817	  Say N if you want to disable CPU hotplug.
2818
2819config SMP_UP
2820	bool
2821
2822config SYS_SUPPORTS_MIPS_CMP
2823	bool
2824
2825config SYS_SUPPORTS_MIPS_CPS
2826	bool
2827
2828config SYS_SUPPORTS_SMP
2829	bool
2830
2831config NR_CPUS_DEFAULT_4
2832	bool
2833
2834config NR_CPUS_DEFAULT_8
2835	bool
2836
2837config NR_CPUS_DEFAULT_16
2838	bool
2839
2840config NR_CPUS_DEFAULT_32
2841	bool
2842
2843config NR_CPUS_DEFAULT_64
2844	bool
2845
2846config NR_CPUS
2847	int "Maximum number of CPUs (2-256)"
2848	range 2 256
2849	depends on SMP
2850	default "4" if NR_CPUS_DEFAULT_4
2851	default "8" if NR_CPUS_DEFAULT_8
2852	default "16" if NR_CPUS_DEFAULT_16
2853	default "32" if NR_CPUS_DEFAULT_32
2854	default "64" if NR_CPUS_DEFAULT_64
2855	help
2856	  This allows you to specify the maximum number of CPUs which this
2857	  kernel will support.  The maximum supported value is 32 for 32-bit
2858	  kernel and 64 for 64-bit kernels; the minimum value which makes
2859	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2860	  and 2 for all others.
2861
2862	  This is purely to save memory - each supported CPU adds
2863	  approximately eight kilobytes to the kernel image.  For best
2864	  performance should round up your number of processors to the next
2865	  power of two.
2866
2867config MIPS_PERF_SHARED_TC_COUNTERS
2868	bool
2869
2870config MIPS_NR_CPU_NR_MAP_1024
2871	bool
2872
2873config MIPS_NR_CPU_NR_MAP
2874	int
2875	depends on SMP
2876	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2877	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2878
2879#
2880# Timer Interrupt Frequency Configuration
2881#
2882
2883choice
2884	prompt "Timer frequency"
2885	default HZ_250
2886	help
2887	  Allows the configuration of the timer frequency.
2888
2889	config HZ_24
2890		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2891
2892	config HZ_48
2893		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2894
2895	config HZ_100
2896		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2897
2898	config HZ_128
2899		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2900
2901	config HZ_250
2902		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2903
2904	config HZ_256
2905		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2906
2907	config HZ_1000
2908		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2909
2910	config HZ_1024
2911		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2912
2913endchoice
2914
2915config SYS_SUPPORTS_24HZ
2916	bool
2917
2918config SYS_SUPPORTS_48HZ
2919	bool
2920
2921config SYS_SUPPORTS_100HZ
2922	bool
2923
2924config SYS_SUPPORTS_128HZ
2925	bool
2926
2927config SYS_SUPPORTS_250HZ
2928	bool
2929
2930config SYS_SUPPORTS_256HZ
2931	bool
2932
2933config SYS_SUPPORTS_1000HZ
2934	bool
2935
2936config SYS_SUPPORTS_1024HZ
2937	bool
2938
2939config SYS_SUPPORTS_ARBIT_HZ
2940	bool
2941	default y if !SYS_SUPPORTS_24HZ && \
2942		     !SYS_SUPPORTS_48HZ && \
2943		     !SYS_SUPPORTS_100HZ && \
2944		     !SYS_SUPPORTS_128HZ && \
2945		     !SYS_SUPPORTS_250HZ && \
2946		     !SYS_SUPPORTS_256HZ && \
2947		     !SYS_SUPPORTS_1000HZ && \
2948		     !SYS_SUPPORTS_1024HZ
2949
2950config HZ
2951	int
2952	default 24 if HZ_24
2953	default 48 if HZ_48
2954	default 100 if HZ_100
2955	default 128 if HZ_128
2956	default 250 if HZ_250
2957	default 256 if HZ_256
2958	default 1000 if HZ_1000
2959	default 1024 if HZ_1024
2960
2961config SCHED_HRTICK
2962	def_bool HIGH_RES_TIMERS
2963
2964config KEXEC
2965	bool "Kexec system call"
2966	select KEXEC_CORE
2967	help
2968	  kexec is a system call that implements the ability to shutdown your
2969	  current kernel, and to start another kernel.  It is like a reboot
2970	  but it is independent of the system firmware.   And like a reboot
2971	  you can start any kernel with it, not just Linux.
2972
2973	  The name comes from the similarity to the exec system call.
2974
2975	  It is an ongoing process to be certain the hardware in a machine
2976	  is properly shutdown, so do not be surprised if this code does not
2977	  initially work for you.  As of this writing the exact hardware
2978	  interface is strongly in flux, so no good recommendation can be
2979	  made.
2980
2981config CRASH_DUMP
2982	bool "Kernel crash dumps"
2983	help
2984	  Generate crash dump after being started by kexec.
2985	  This should be normally only set in special crash dump kernels
2986	  which are loaded in the main kernel with kexec-tools into
2987	  a specially reserved region and then later executed after
2988	  a crash by kdump/kexec. The crash dump kernel must be compiled
2989	  to a memory address not used by the main kernel or firmware using
2990	  PHYSICAL_START.
2991
2992config PHYSICAL_START
2993	hex "Physical address where the kernel is loaded"
2994	default "0xffffffff84000000"
2995	depends on CRASH_DUMP
2996	help
2997	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2998	  If you plan to use kernel for capturing the crash dump change
2999	  this value to start of the reserved region (the "X" value as
3000	  specified in the "crashkernel=YM@XM" command line boot parameter
3001	  passed to the panic-ed kernel).
3002
3003config SECCOMP
3004	bool "Enable seccomp to safely compute untrusted bytecode"
3005	depends on PROC_FS
3006	default y
3007	help
3008	  This kernel feature is useful for number crunching applications
3009	  that may need to compute untrusted bytecode during their
3010	  execution. By using pipes or other transports made available to
3011	  the process as file descriptors supporting the read/write
3012	  syscalls, it's possible to isolate those applications in
3013	  their own address space using seccomp. Once seccomp is
3014	  enabled via /proc/<pid>/seccomp, it cannot be disabled
3015	  and the task is only allowed to execute a few safe syscalls
3016	  defined by each seccomp mode.
3017
3018	  If unsure, say Y. Only embedded should say N here.
3019
3020config MIPS_O32_FP64_SUPPORT
3021	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3022	depends on 32BIT || MIPS32_O32
3023	help
3024	  When this is enabled, the kernel will support use of 64-bit floating
3025	  point registers with binaries using the O32 ABI along with the
3026	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3027	  32-bit MIPS systems this support is at the cost of increasing the
3028	  size and complexity of the compiled FPU emulator. Thus if you are
3029	  running a MIPS32 system and know that none of your userland binaries
3030	  will require 64-bit floating point, you may wish to reduce the size
3031	  of your kernel & potentially improve FP emulation performance by
3032	  saying N here.
3033
3034	  Although binutils currently supports use of this flag the details
3035	  concerning its effect upon the O32 ABI in userland are still being
3036	  worked on. In order to avoid userland becoming dependant upon current
3037	  behaviour before the details have been finalised, this option should
3038	  be considered experimental and only enabled by those working upon
3039	  said details.
3040
3041	  If unsure, say N.
3042
3043config USE_OF
3044	bool
3045	select OF
3046	select OF_EARLY_FLATTREE
3047	select IRQ_DOMAIN
3048
3049config UHI_BOOT
3050	bool
3051
3052config BUILTIN_DTB
3053	bool
3054
3055choice
3056	prompt "Kernel appended dtb support" if USE_OF
3057	default MIPS_NO_APPENDED_DTB
3058
3059	config MIPS_NO_APPENDED_DTB
3060		bool "None"
3061		help
3062		  Do not enable appended dtb support.
3063
3064	config MIPS_ELF_APPENDED_DTB
3065		bool "vmlinux"
3066		help
3067		  With this option, the boot code will look for a device tree binary
3068		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3069		  it is empty and the DTB can be appended using binutils command
3070		  objcopy:
3071
3072		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3073
3074		  This is meant as a backward compatiblity convenience for those
3075		  systems with a bootloader that can't be upgraded to accommodate
3076		  the documented boot protocol using a device tree.
3077
3078	config MIPS_RAW_APPENDED_DTB
3079		bool "vmlinux.bin or vmlinuz.bin"
3080		help
3081		  With this option, the boot code will look for a device tree binary
3082		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3083		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3084
3085		  This is meant as a backward compatibility convenience for those
3086		  systems with a bootloader that can't be upgraded to accommodate
3087		  the documented boot protocol using a device tree.
3088
3089		  Beware that there is very little in terms of protection against
3090		  this option being confused by leftover garbage in memory that might
3091		  look like a DTB header after a reboot if no actual DTB is appended
3092		  to vmlinux.bin.  Do not leave this option active in a production kernel
3093		  if you don't intend to always append a DTB.
3094endchoice
3095
3096choice
3097	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3098	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3099					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3100					 !CAVIUM_OCTEON_SOC
3101	default MIPS_CMDLINE_FROM_BOOTLOADER
3102
3103	config MIPS_CMDLINE_FROM_DTB
3104		depends on USE_OF
3105		bool "Dtb kernel arguments if available"
3106
3107	config MIPS_CMDLINE_DTB_EXTEND
3108		depends on USE_OF
3109		bool "Extend dtb kernel arguments with bootloader arguments"
3110
3111	config MIPS_CMDLINE_FROM_BOOTLOADER
3112		bool "Bootloader kernel arguments if available"
3113
3114	config MIPS_CMDLINE_BUILTIN_EXTEND
3115		depends on CMDLINE_BOOL
3116		bool "Extend builtin kernel arguments with bootloader arguments"
3117endchoice
3118
3119endmenu
3120
3121config LOCKDEP_SUPPORT
3122	bool
3123	default y
3124
3125config STACKTRACE_SUPPORT
3126	bool
3127	default y
3128
3129config PGTABLE_LEVELS
3130	int
3131	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3132	default 3 if 64BIT && !PAGE_SIZE_64KB
3133	default 2
3134
3135config MIPS_AUTO_PFN_OFFSET
3136	bool
3137
3138menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3139
3140config PCI_DRIVERS_GENERIC
3141	select PCI_DOMAINS_GENERIC if PCI
3142	bool
3143
3144config PCI_DRIVERS_LEGACY
3145	def_bool !PCI_DRIVERS_GENERIC
3146	select NO_GENERIC_PCI_IOPORT_MAP
3147	select PCI_DOMAINS if PCI
3148
3149#
3150# ISA support is now enabled via select.  Too many systems still have the one
3151# or other ISA chip on the board that users don't know about so don't expect
3152# users to choose the right thing ...
3153#
3154config ISA
3155	bool
3156
3157config TC
3158	bool "TURBOchannel support"
3159	depends on MACH_DECSTATION
3160	help
3161	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3162	  processors.  TURBOchannel programming specifications are available
3163	  at:
3164	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3165	  and:
3166	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3167	  Linux driver support status is documented at:
3168	  <http://www.linux-mips.org/wiki/DECstation>
3169
3170config MMU
3171	bool
3172	default y
3173
3174config ARCH_MMAP_RND_BITS_MIN
3175	default 12 if 64BIT
3176	default 8
3177
3178config ARCH_MMAP_RND_BITS_MAX
3179	default 18 if 64BIT
3180	default 15
3181
3182config ARCH_MMAP_RND_COMPAT_BITS_MIN
3183	default 8
3184
3185config ARCH_MMAP_RND_COMPAT_BITS_MAX
3186	default 15
3187
3188config I8253
3189	bool
3190	select CLKSRC_I8253
3191	select CLKEVT_I8253
3192	select MIPS_EXTERNAL_TIMER
3193
3194config ZONE_DMA
3195	bool
3196
3197config ZONE_DMA32
3198	bool
3199
3200endmenu
3201
3202config TRAD_SIGNALS
3203	bool
3204
3205config MIPS32_COMPAT
3206	bool
3207
3208config COMPAT
3209	bool
3210
3211config SYSVIPC_COMPAT
3212	bool
3213
3214config MIPS32_O32
3215	bool "Kernel support for o32 binaries"
3216	depends on 64BIT
3217	select ARCH_WANT_OLD_COMPAT_IPC
3218	select COMPAT
3219	select MIPS32_COMPAT
3220	select SYSVIPC_COMPAT if SYSVIPC
3221	help
3222	  Select this option if you want to run o32 binaries.  These are pure
3223	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3224	  existing binaries are in this format.
3225
3226	  If unsure, say Y.
3227
3228config MIPS32_N32
3229	bool "Kernel support for n32 binaries"
3230	depends on 64BIT
3231	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3232	select COMPAT
3233	select MIPS32_COMPAT
3234	select SYSVIPC_COMPAT if SYSVIPC
3235	help
3236	  Select this option if you want to run n32 binaries.  These are
3237	  64-bit binaries using 32-bit quantities for addressing and certain
3238	  data that would normally be 64-bit.  They are used in special
3239	  cases.
3240
3241	  If unsure, say N.
3242
3243config BINFMT_ELF32
3244	bool
3245	default y if MIPS32_O32 || MIPS32_N32
3246	select ELFCORE
3247
3248menu "Power management options"
3249
3250config ARCH_HIBERNATION_POSSIBLE
3251	def_bool y
3252	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3253
3254config ARCH_SUSPEND_POSSIBLE
3255	def_bool y
3256	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3257
3258source "kernel/power/Kconfig"
3259
3260endmenu
3261
3262config MIPS_EXTERNAL_TIMER
3263	bool
3264
3265menu "CPU Power Management"
3266
3267if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3268source "drivers/cpufreq/Kconfig"
3269endif
3270
3271source "drivers/cpuidle/Kconfig"
3272
3273endmenu
3274
3275source "drivers/firmware/Kconfig"
3276
3277source "arch/mips/kvm/Kconfig"
3278