xref: /openbmc/linux/arch/mips/Kconfig (revision 87fcfa7b7fe6bf819033fe827a27f710e38639b5)
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_CLOCKSOURCE_DATA
8	select ARCH_HAS_FORTIFY_SOURCE
9	select ARCH_HAS_KCOV
10	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
11	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
12	select ARCH_HAS_UBSAN_SANITIZE_ALL
13	select ARCH_SUPPORTS_UPROBES
14	select ARCH_USE_BUILTIN_BSWAP
15	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
16	select ARCH_USE_QUEUED_RWLOCKS
17	select ARCH_USE_QUEUED_SPINLOCKS
18	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
19	select ARCH_WANT_IPC_PARSE_VERSION
20	select BUILDTIME_TABLE_SORT
21	select CLONE_BACKWARDS
22	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
23	select CPU_PM if CPU_IDLE
24	select GENERIC_ATOMIC64 if !64BIT
25	select GENERIC_CLOCKEVENTS
26	select GENERIC_CMOS_UPDATE
27	select GENERIC_CPU_AUTOPROBE
28	select GENERIC_GETTIMEOFDAY
29	select GENERIC_IOMAP
30	select GENERIC_IRQ_PROBE
31	select GENERIC_IRQ_SHOW
32	select GENERIC_ISA_DMA if EISA
33	select GENERIC_LIB_ASHLDI3
34	select GENERIC_LIB_ASHRDI3
35	select GENERIC_LIB_CMPDI2
36	select GENERIC_LIB_LSHRDI3
37	select GENERIC_LIB_UCMPDI2
38	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
39	select GENERIC_SMP_IDLE_THREAD
40	select GENERIC_TIME_VSYSCALL
41	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
42	select HANDLE_DOMAIN_IRQ
43	select HAVE_ARCH_COMPILER_H
44	select HAVE_ARCH_JUMP_LABEL
45	select HAVE_ARCH_KGDB
46	select HAVE_ARCH_MMAP_RND_BITS if MMU
47	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
48	select HAVE_ARCH_SECCOMP_FILTER
49	select HAVE_ARCH_TRACEHOOK
50	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
51	select HAVE_ASM_MODVERSIONS
52	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
53	select HAVE_CONTEXT_TRACKING
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 ZONE_DMA32
979	select HOLES_IN_ZONE
980	select GPIOLIB
981	select USE_OF
982	select ARCH_SPARSEMEM_ENABLE
983	select SYS_SUPPORTS_SMP
984	select NR_CPUS_DEFAULT_64
985	select MIPS_NR_CPU_NR_MAP_1024
986	select BUILTIN_DTB
987	select MTD_COMPLEX_MAPPINGS
988	select SWIOTLB
989	select SYS_SUPPORTS_RELOCATABLE
990	help
991	  This option supports all of the Octeon reference boards from Cavium
992	  Networks. It builds a kernel that dynamically determines the Octeon
993	  CPU type and supports all known board reference implementations.
994	  Some of the supported boards are:
995		EBT3000
996		EBH3000
997		EBH3100
998		Thunder
999		Kodama
1000		Hikari
1001	  Say Y here for most Octeon reference boards.
1002
1003config NLM_XLR_BOARD
1004	bool "Netlogic XLR/XLS based systems"
1005	select BOOT_ELF32
1006	select NLM_COMMON
1007	select SYS_HAS_CPU_XLR
1008	select SYS_SUPPORTS_SMP
1009	select HAVE_PCI
1010	select SWAP_IO_SPACE
1011	select SYS_SUPPORTS_32BIT_KERNEL
1012	select SYS_SUPPORTS_64BIT_KERNEL
1013	select PHYS_ADDR_T_64BIT
1014	select SYS_SUPPORTS_BIG_ENDIAN
1015	select SYS_SUPPORTS_HIGHMEM
1016	select NR_CPUS_DEFAULT_32
1017	select CEVT_R4K
1018	select CSRC_R4K
1019	select IRQ_MIPS_CPU
1020	select ZONE_DMA32 if 64BIT
1021	select SYNC_R4K
1022	select SYS_HAS_EARLY_PRINTK
1023	select SYS_SUPPORTS_ZBOOT
1024	select SYS_SUPPORTS_ZBOOT_UART16550
1025	help
1026	  Support for systems based on Netlogic XLR and XLS processors.
1027	  Say Y here if you have a XLR or XLS based board.
1028
1029config NLM_XLP_BOARD
1030	bool "Netlogic XLP based systems"
1031	select BOOT_ELF32
1032	select NLM_COMMON
1033	select SYS_HAS_CPU_XLP
1034	select SYS_SUPPORTS_SMP
1035	select HAVE_PCI
1036	select SYS_SUPPORTS_32BIT_KERNEL
1037	select SYS_SUPPORTS_64BIT_KERNEL
1038	select PHYS_ADDR_T_64BIT
1039	select GPIOLIB
1040	select SYS_SUPPORTS_BIG_ENDIAN
1041	select SYS_SUPPORTS_LITTLE_ENDIAN
1042	select SYS_SUPPORTS_HIGHMEM
1043	select NR_CPUS_DEFAULT_32
1044	select CEVT_R4K
1045	select CSRC_R4K
1046	select IRQ_MIPS_CPU
1047	select ZONE_DMA32 if 64BIT
1048	select SYNC_R4K
1049	select SYS_HAS_EARLY_PRINTK
1050	select USE_OF
1051	select SYS_SUPPORTS_ZBOOT
1052	select SYS_SUPPORTS_ZBOOT_UART16550
1053	help
1054	  This board is based on Netlogic XLP Processor.
1055	  Say Y here if you have a XLP based board.
1056
1057config MIPS_PARAVIRT
1058	bool "Para-Virtualized guest system"
1059	select CEVT_R4K
1060	select CSRC_R4K
1061	select SYS_SUPPORTS_64BIT_KERNEL
1062	select SYS_SUPPORTS_32BIT_KERNEL
1063	select SYS_SUPPORTS_BIG_ENDIAN
1064	select SYS_SUPPORTS_SMP
1065	select NR_CPUS_DEFAULT_4
1066	select SYS_HAS_EARLY_PRINTK
1067	select SYS_HAS_CPU_MIPS32_R2
1068	select SYS_HAS_CPU_MIPS64_R2
1069	select SYS_HAS_CPU_CAVIUM_OCTEON
1070	select HAVE_PCI
1071	select SWAP_IO_SPACE
1072	help
1073	  This option supports guest running under ????
1074
1075endchoice
1076
1077source "arch/mips/alchemy/Kconfig"
1078source "arch/mips/ath25/Kconfig"
1079source "arch/mips/ath79/Kconfig"
1080source "arch/mips/bcm47xx/Kconfig"
1081source "arch/mips/bcm63xx/Kconfig"
1082source "arch/mips/bmips/Kconfig"
1083source "arch/mips/generic/Kconfig"
1084source "arch/mips/jazz/Kconfig"
1085source "arch/mips/jz4740/Kconfig"
1086source "arch/mips/lantiq/Kconfig"
1087source "arch/mips/lasat/Kconfig"
1088source "arch/mips/pic32/Kconfig"
1089source "arch/mips/pistachio/Kconfig"
1090source "arch/mips/pmcs-msp71xx/Kconfig"
1091source "arch/mips/ralink/Kconfig"
1092source "arch/mips/sgi-ip27/Kconfig"
1093source "arch/mips/sibyte/Kconfig"
1094source "arch/mips/txx9/Kconfig"
1095source "arch/mips/vr41xx/Kconfig"
1096source "arch/mips/cavium-octeon/Kconfig"
1097source "arch/mips/loongson2ef/Kconfig"
1098source "arch/mips/loongson32/Kconfig"
1099source "arch/mips/loongson64/Kconfig"
1100source "arch/mips/netlogic/Kconfig"
1101source "arch/mips/paravirt/Kconfig"
1102
1103endmenu
1104
1105config GENERIC_HWEIGHT
1106	bool
1107	default y
1108
1109config GENERIC_CALIBRATE_DELAY
1110	bool
1111	default y
1112
1113config SCHED_OMIT_FRAME_POINTER
1114	bool
1115	default y
1116
1117#
1118# Select some configuration options automatically based on user selections.
1119#
1120config FW_ARC
1121	bool
1122
1123config ARCH_MAY_HAVE_PC_FDC
1124	bool
1125
1126config BOOT_RAW
1127	bool
1128
1129config CEVT_BCM1480
1130	bool
1131
1132config CEVT_DS1287
1133	bool
1134
1135config CEVT_GT641XX
1136	bool
1137
1138config CEVT_R4K
1139	bool
1140
1141config CEVT_SB1250
1142	bool
1143
1144config CEVT_TXX9
1145	bool
1146
1147config CSRC_BCM1480
1148	bool
1149
1150config CSRC_IOASIC
1151	bool
1152
1153config CSRC_R4K
1154	bool
1155
1156config CSRC_SB1250
1157	bool
1158
1159config MIPS_CLOCK_VSYSCALL
1160	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1161
1162config GPIO_TXX9
1163	select GPIOLIB
1164	bool
1165
1166config FW_CFE
1167	bool
1168
1169config ARCH_SUPPORTS_UPROBES
1170	bool
1171
1172config DMA_MAYBE_COHERENT
1173	select ARCH_HAS_DMA_COHERENCE_H
1174	select DMA_NONCOHERENT
1175	bool
1176
1177config DMA_PERDEV_COHERENT
1178	bool
1179	select ARCH_HAS_SETUP_DMA_OPS
1180	select DMA_NONCOHERENT
1181
1182config DMA_NONCOHERENT
1183	bool
1184	#
1185	# MIPS allows mixing "slightly different" Cacheability and Coherency
1186	# Attribute bits.  It is believed that the uncached access through
1187	# KSEG1 and the implementation specific "uncached accelerated" used
1188	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1189	# significant advantages.
1190	#
1191	select ARCH_HAS_DMA_WRITE_COMBINE
1192	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1193	select ARCH_HAS_UNCACHED_SEGMENT
1194	select DMA_NONCOHERENT_MMAP
1195	select DMA_NONCOHERENT_CACHE_SYNC
1196	select NEED_DMA_MAP_STATE
1197
1198config SYS_HAS_EARLY_PRINTK
1199	bool
1200
1201config SYS_SUPPORTS_HOTPLUG_CPU
1202	bool
1203
1204config MIPS_BONITO64
1205	bool
1206
1207config MIPS_MSC
1208	bool
1209
1210config MIPS_NILE4
1211	bool
1212
1213config SYNC_R4K
1214	bool
1215
1216config MIPS_MACHINE
1217	def_bool n
1218
1219config NO_IOPORT_MAP
1220	def_bool n
1221
1222config GENERIC_CSUM
1223	def_bool CPU_NO_LOAD_STORE_LR
1224
1225config GENERIC_ISA_DMA
1226	bool
1227	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1228	select ISA_DMA_API
1229
1230config GENERIC_ISA_DMA_SUPPORT_BROKEN
1231	bool
1232	select GENERIC_ISA_DMA
1233
1234config ISA_DMA_API
1235	bool
1236
1237config HOLES_IN_ZONE
1238	bool
1239
1240config SYS_SUPPORTS_RELOCATABLE
1241	bool
1242	help
1243	  Selected if the platform supports relocating the kernel.
1244	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1245	  to allow access to command line and entropy sources.
1246
1247config MIPS_CBPF_JIT
1248	def_bool y
1249	depends on BPF_JIT && HAVE_CBPF_JIT
1250
1251config MIPS_EBPF_JIT
1252	def_bool y
1253	depends on BPF_JIT && HAVE_EBPF_JIT
1254
1255
1256#
1257# Endianness selection.  Sufficiently obscure so many users don't know what to
1258# answer,so we try hard to limit the available choices.  Also the use of a
1259# choice statement should be more obvious to the user.
1260#
1261choice
1262	prompt "Endianness selection"
1263	help
1264	  Some MIPS machines can be configured for either little or big endian
1265	  byte order. These modes require different kernels and a different
1266	  Linux distribution.  In general there is one preferred byteorder for a
1267	  particular system but some systems are just as commonly used in the
1268	  one or the other endianness.
1269
1270config CPU_BIG_ENDIAN
1271	bool "Big endian"
1272	depends on SYS_SUPPORTS_BIG_ENDIAN
1273
1274config CPU_LITTLE_ENDIAN
1275	bool "Little endian"
1276	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1277
1278endchoice
1279
1280config EXPORT_UASM
1281	bool
1282
1283config SYS_SUPPORTS_APM_EMULATION
1284	bool
1285
1286config SYS_SUPPORTS_BIG_ENDIAN
1287	bool
1288
1289config SYS_SUPPORTS_LITTLE_ENDIAN
1290	bool
1291
1292config SYS_SUPPORTS_HUGETLBFS
1293	bool
1294	depends on CPU_SUPPORTS_HUGEPAGES
1295	default y
1296
1297config MIPS_HUGE_TLB_SUPPORT
1298	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1299
1300config IRQ_CPU_RM7K
1301	bool
1302
1303config IRQ_MSP_SLP
1304	bool
1305
1306config IRQ_MSP_CIC
1307	bool
1308
1309config IRQ_TXX9
1310	bool
1311
1312config IRQ_GT641XX
1313	bool
1314
1315config PCI_GT64XXX_PCI0
1316	bool
1317
1318config PCI_XTALK_BRIDGE
1319	bool
1320
1321config NO_EXCEPT_FILL
1322	bool
1323
1324config SOC_EMMA2RH
1325	bool
1326	select CEVT_R4K
1327	select CSRC_R4K
1328	select DMA_NONCOHERENT
1329	select IRQ_MIPS_CPU
1330	select SWAP_IO_SPACE
1331	select SYS_HAS_CPU_R5500
1332	select SYS_SUPPORTS_32BIT_KERNEL
1333	select SYS_SUPPORTS_64BIT_KERNEL
1334	select SYS_SUPPORTS_BIG_ENDIAN
1335
1336config SOC_PNX833X
1337	bool
1338	select CEVT_R4K
1339	select CSRC_R4K
1340	select IRQ_MIPS_CPU
1341	select DMA_NONCOHERENT
1342	select SYS_HAS_CPU_MIPS32_R2
1343	select SYS_SUPPORTS_32BIT_KERNEL
1344	select SYS_SUPPORTS_LITTLE_ENDIAN
1345	select SYS_SUPPORTS_BIG_ENDIAN
1346	select SYS_SUPPORTS_MIPS16
1347	select CPU_MIPSR2_IRQ_VI
1348
1349config SOC_PNX8335
1350	bool
1351	select SOC_PNX833X
1352
1353config MIPS_SPRAM
1354	bool
1355
1356config SWAP_IO_SPACE
1357	bool
1358
1359config SGI_HAS_INDYDOG
1360	bool
1361
1362config SGI_HAS_HAL2
1363	bool
1364
1365config SGI_HAS_SEEQ
1366	bool
1367
1368config SGI_HAS_WD93
1369	bool
1370
1371config SGI_HAS_ZILOG
1372	bool
1373
1374config SGI_HAS_I8042
1375	bool
1376
1377config DEFAULT_SGI_PARTITION
1378	bool
1379
1380config FW_ARC32
1381	bool
1382
1383config FW_SNIPROM
1384	bool
1385
1386config BOOT_ELF32
1387	bool
1388
1389config MIPS_L1_CACHE_SHIFT_4
1390	bool
1391
1392config MIPS_L1_CACHE_SHIFT_5
1393	bool
1394
1395config MIPS_L1_CACHE_SHIFT_6
1396	bool
1397
1398config MIPS_L1_CACHE_SHIFT_7
1399	bool
1400
1401config MIPS_L1_CACHE_SHIFT
1402	int
1403	default "7" if MIPS_L1_CACHE_SHIFT_7
1404	default "6" if MIPS_L1_CACHE_SHIFT_6
1405	default "5" if MIPS_L1_CACHE_SHIFT_5
1406	default "4" if MIPS_L1_CACHE_SHIFT_4
1407	default "5"
1408
1409config HAVE_STD_PC_SERIAL_PORT
1410	bool
1411
1412config ARC_CMDLINE_ONLY
1413	bool
1414
1415config ARC_CONSOLE
1416	bool "ARC console support"
1417	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1418
1419config ARC_MEMORY
1420	bool
1421
1422config ARC_PROMLIB
1423	bool
1424
1425config FW_ARC64
1426	bool
1427
1428config BOOT_ELF64
1429	bool
1430
1431menu "CPU selection"
1432
1433choice
1434	prompt "CPU type"
1435	default CPU_R4X00
1436
1437config CPU_LOONGSON64
1438	bool "Loongson 64-bit CPU"
1439	depends on SYS_HAS_CPU_LOONGSON64
1440	select ARCH_HAS_PHYS_TO_DMA
1441	select CPU_MIPSR2
1442	select CPU_HAS_PREFETCH
1443	select CPU_SUPPORTS_64BIT_KERNEL
1444	select CPU_SUPPORTS_HIGHMEM
1445	select CPU_SUPPORTS_HUGEPAGES
1446	select CPU_SUPPORTS_MSA
1447	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1448	select CPU_MIPSR2_IRQ_VI
1449	select WEAK_ORDERING
1450	select WEAK_REORDERING_BEYOND_LLSC
1451	select MIPS_ASID_BITS_VARIABLE
1452	select MIPS_PGD_C0_CONTEXT
1453	select MIPS_L1_CACHE_SHIFT_6
1454	select GPIOLIB
1455	select SWIOTLB
1456	help
1457		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1458		cores implements the MIPS64R2 instruction set with many extensions,
1459		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1460		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1461		Loongson-2E/2F is not covered here and will be removed in future.
1462
1463config LOONGSON3_ENHANCEMENT
1464	bool "New Loongson-3 CPU Enhancements"
1465	default n
1466	depends on CPU_LOONGSON64
1467	help
1468	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1469	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1470	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1471	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1472	  Fast TLB refill support, etc.
1473
1474	  This option enable those enhancements which are not probed at run
1475	  time. If you want a generic kernel to run on all Loongson 3 machines,
1476	  please say 'N' here. If you want a high-performance kernel to run on
1477	  new Loongson-3 machines only, please say 'Y' here.
1478
1479config CPU_LOONGSON3_WORKAROUNDS
1480	bool "Old Loongson-3 LLSC Workarounds"
1481	default y if SMP
1482	depends on CPU_LOONGSON64
1483	help
1484	  Loongson-3 processors have the llsc issues which require workarounds.
1485	  Without workarounds the system may hang unexpectedly.
1486
1487	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1488	  The workarounds have no significant side effect on them but may
1489	  decrease the performance of the system so this option should be
1490	  disabled unless the kernel is intended to be run on old systems.
1491
1492	  If unsure, please say Y.
1493
1494config CPU_LOONGSON2E
1495	bool "Loongson 2E"
1496	depends on SYS_HAS_CPU_LOONGSON2E
1497	select CPU_LOONGSON2EF
1498	help
1499	  The Loongson 2E processor implements the MIPS III instruction set
1500	  with many extensions.
1501
1502	  It has an internal FPGA northbridge, which is compatible to
1503	  bonito64.
1504
1505config CPU_LOONGSON2F
1506	bool "Loongson 2F"
1507	depends on SYS_HAS_CPU_LOONGSON2F
1508	select CPU_LOONGSON2EF
1509	select GPIOLIB
1510	help
1511	  The Loongson 2F processor implements the MIPS III instruction set
1512	  with many extensions.
1513
1514	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1515	  have a similar programming interface with FPGA northbridge used in
1516	  Loongson2E.
1517
1518config CPU_LOONGSON1B
1519	bool "Loongson 1B"
1520	depends on SYS_HAS_CPU_LOONGSON1B
1521	select CPU_LOONGSON32
1522	select LEDS_GPIO_REGISTER
1523	help
1524	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1525	  Release 1 instruction set and part of the MIPS32 Release 2
1526	  instruction set.
1527
1528config CPU_LOONGSON1C
1529	bool "Loongson 1C"
1530	depends on SYS_HAS_CPU_LOONGSON1C
1531	select CPU_LOONGSON32
1532	select LEDS_GPIO_REGISTER
1533	help
1534	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1535	  Release 1 instruction set and part of the MIPS32 Release 2
1536	  instruction set.
1537
1538config CPU_MIPS32_R1
1539	bool "MIPS32 Release 1"
1540	depends on SYS_HAS_CPU_MIPS32_R1
1541	select CPU_HAS_PREFETCH
1542	select CPU_SUPPORTS_32BIT_KERNEL
1543	select CPU_SUPPORTS_HIGHMEM
1544	help
1545	  Choose this option to build a kernel for release 1 or later of the
1546	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1547	  MIPS processor are based on a MIPS32 processor.  If you know the
1548	  specific type of processor in your system, choose those that one
1549	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1550	  Release 2 of the MIPS32 architecture is available since several
1551	  years so chances are you even have a MIPS32 Release 2 processor
1552	  in which case you should choose CPU_MIPS32_R2 instead for better
1553	  performance.
1554
1555config CPU_MIPS32_R2
1556	bool "MIPS32 Release 2"
1557	depends on SYS_HAS_CPU_MIPS32_R2
1558	select CPU_HAS_PREFETCH
1559	select CPU_SUPPORTS_32BIT_KERNEL
1560	select CPU_SUPPORTS_HIGHMEM
1561	select CPU_SUPPORTS_MSA
1562	select HAVE_KVM
1563	help
1564	  Choose this option to build a kernel for release 2 or later of the
1565	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1566	  MIPS processor are based on a MIPS32 processor.  If you know the
1567	  specific type of processor in your system, choose those that one
1568	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1569
1570config CPU_MIPS32_R6
1571	bool "MIPS32 Release 6"
1572	depends on SYS_HAS_CPU_MIPS32_R6
1573	select CPU_HAS_PREFETCH
1574	select CPU_NO_LOAD_STORE_LR
1575	select CPU_SUPPORTS_32BIT_KERNEL
1576	select CPU_SUPPORTS_HIGHMEM
1577	select CPU_SUPPORTS_MSA
1578	select HAVE_KVM
1579	select MIPS_O32_FP64_SUPPORT
1580	help
1581	  Choose this option to build a kernel for release 6 or later of the
1582	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1583	  family, are based on a MIPS32r6 processor. If you own an older
1584	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1585
1586config CPU_MIPS64_R1
1587	bool "MIPS64 Release 1"
1588	depends on SYS_HAS_CPU_MIPS64_R1
1589	select CPU_HAS_PREFETCH
1590	select CPU_SUPPORTS_32BIT_KERNEL
1591	select CPU_SUPPORTS_64BIT_KERNEL
1592	select CPU_SUPPORTS_HIGHMEM
1593	select CPU_SUPPORTS_HUGEPAGES
1594	help
1595	  Choose this option to build a kernel for release 1 or later of the
1596	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1597	  MIPS processor are based on a MIPS64 processor.  If you know the
1598	  specific type of processor in your system, choose those that one
1599	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1600	  Release 2 of the MIPS64 architecture is available since several
1601	  years so chances are you even have a MIPS64 Release 2 processor
1602	  in which case you should choose CPU_MIPS64_R2 instead for better
1603	  performance.
1604
1605config CPU_MIPS64_R2
1606	bool "MIPS64 Release 2"
1607	depends on SYS_HAS_CPU_MIPS64_R2
1608	select CPU_HAS_PREFETCH
1609	select CPU_SUPPORTS_32BIT_KERNEL
1610	select CPU_SUPPORTS_64BIT_KERNEL
1611	select CPU_SUPPORTS_HIGHMEM
1612	select CPU_SUPPORTS_HUGEPAGES
1613	select CPU_SUPPORTS_MSA
1614	select HAVE_KVM
1615	help
1616	  Choose this option to build a kernel for release 2 or later of the
1617	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1618	  MIPS processor are based on a MIPS64 processor.  If you know the
1619	  specific type of processor in your system, choose those that one
1620	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1621
1622config CPU_MIPS64_R6
1623	bool "MIPS64 Release 6"
1624	depends on SYS_HAS_CPU_MIPS64_R6
1625	select CPU_HAS_PREFETCH
1626	select CPU_NO_LOAD_STORE_LR
1627	select CPU_SUPPORTS_32BIT_KERNEL
1628	select CPU_SUPPORTS_64BIT_KERNEL
1629	select CPU_SUPPORTS_HIGHMEM
1630	select CPU_SUPPORTS_HUGEPAGES
1631	select CPU_SUPPORTS_MSA
1632	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1633	select HAVE_KVM
1634	help
1635	  Choose this option to build a kernel for release 6 or later of the
1636	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1637	  family, are based on a MIPS64r6 processor. If you own an older
1638	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1639
1640config CPU_R3000
1641	bool "R3000"
1642	depends on SYS_HAS_CPU_R3000
1643	select CPU_HAS_WB
1644	select CPU_R3K_TLB
1645	select CPU_SUPPORTS_32BIT_KERNEL
1646	select CPU_SUPPORTS_HIGHMEM
1647	help
1648	  Please make sure to pick the right CPU type. Linux/MIPS is not
1649	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1650	  *not* work on R4000 machines and vice versa.  However, since most
1651	  of the supported machines have an R4000 (or similar) CPU, R4x00
1652	  might be a safe bet.  If the resulting kernel does not work,
1653	  try to recompile with R3000.
1654
1655config CPU_TX39XX
1656	bool "R39XX"
1657	depends on SYS_HAS_CPU_TX39XX
1658	select CPU_SUPPORTS_32BIT_KERNEL
1659	select CPU_R3K_TLB
1660
1661config CPU_VR41XX
1662	bool "R41xx"
1663	depends on SYS_HAS_CPU_VR41XX
1664	select CPU_SUPPORTS_32BIT_KERNEL
1665	select CPU_SUPPORTS_64BIT_KERNEL
1666	help
1667	  The options selects support for the NEC VR4100 series of processors.
1668	  Only choose this option if you have one of these processors as a
1669	  kernel built with this option will not run on any other type of
1670	  processor or vice versa.
1671
1672config CPU_R4X00
1673	bool "R4x00"
1674	depends on SYS_HAS_CPU_R4X00
1675	select CPU_SUPPORTS_32BIT_KERNEL
1676	select CPU_SUPPORTS_64BIT_KERNEL
1677	select CPU_SUPPORTS_HUGEPAGES
1678	help
1679	  MIPS Technologies R4000-series processors other than 4300, including
1680	  the R4000, R4400, R4600, and 4700.
1681
1682config CPU_TX49XX
1683	bool "R49XX"
1684	depends on SYS_HAS_CPU_TX49XX
1685	select CPU_HAS_PREFETCH
1686	select CPU_SUPPORTS_32BIT_KERNEL
1687	select CPU_SUPPORTS_64BIT_KERNEL
1688	select CPU_SUPPORTS_HUGEPAGES
1689
1690config CPU_R5000
1691	bool "R5000"
1692	depends on SYS_HAS_CPU_R5000
1693	select CPU_SUPPORTS_32BIT_KERNEL
1694	select CPU_SUPPORTS_64BIT_KERNEL
1695	select CPU_SUPPORTS_HUGEPAGES
1696	help
1697	  MIPS Technologies R5000-series processors other than the Nevada.
1698
1699config CPU_R5500
1700	bool "R5500"
1701	depends on SYS_HAS_CPU_R5500
1702	select CPU_SUPPORTS_32BIT_KERNEL
1703	select CPU_SUPPORTS_64BIT_KERNEL
1704	select CPU_SUPPORTS_HUGEPAGES
1705	help
1706	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1707	  instruction set.
1708
1709config CPU_NEVADA
1710	bool "RM52xx"
1711	depends on SYS_HAS_CPU_NEVADA
1712	select CPU_SUPPORTS_32BIT_KERNEL
1713	select CPU_SUPPORTS_64BIT_KERNEL
1714	select CPU_SUPPORTS_HUGEPAGES
1715	help
1716	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1717
1718config CPU_R10000
1719	bool "R10000"
1720	depends on SYS_HAS_CPU_R10000
1721	select CPU_HAS_PREFETCH
1722	select CPU_SUPPORTS_32BIT_KERNEL
1723	select CPU_SUPPORTS_64BIT_KERNEL
1724	select CPU_SUPPORTS_HIGHMEM
1725	select CPU_SUPPORTS_HUGEPAGES
1726	help
1727	  MIPS Technologies R10000-series processors.
1728
1729config CPU_RM7000
1730	bool "RM7000"
1731	depends on SYS_HAS_CPU_RM7000
1732	select CPU_HAS_PREFETCH
1733	select CPU_SUPPORTS_32BIT_KERNEL
1734	select CPU_SUPPORTS_64BIT_KERNEL
1735	select CPU_SUPPORTS_HIGHMEM
1736	select CPU_SUPPORTS_HUGEPAGES
1737
1738config CPU_SB1
1739	bool "SB1"
1740	depends on SYS_HAS_CPU_SB1
1741	select CPU_SUPPORTS_32BIT_KERNEL
1742	select CPU_SUPPORTS_64BIT_KERNEL
1743	select CPU_SUPPORTS_HIGHMEM
1744	select CPU_SUPPORTS_HUGEPAGES
1745	select WEAK_ORDERING
1746
1747config CPU_CAVIUM_OCTEON
1748	bool "Cavium Octeon processor"
1749	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1750	select CPU_HAS_PREFETCH
1751	select CPU_SUPPORTS_64BIT_KERNEL
1752	select WEAK_ORDERING
1753	select CPU_SUPPORTS_HIGHMEM
1754	select CPU_SUPPORTS_HUGEPAGES
1755	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1756	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1757	select MIPS_L1_CACHE_SHIFT_7
1758	select HAVE_KVM
1759	help
1760	  The Cavium Octeon processor is a highly integrated chip containing
1761	  many ethernet hardware widgets for networking tasks. The processor
1762	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1763	  Full details can be found at http://www.caviumnetworks.com.
1764
1765config CPU_BMIPS
1766	bool "Broadcom BMIPS"
1767	depends on SYS_HAS_CPU_BMIPS
1768	select CPU_MIPS32
1769	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1770	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1771	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1772	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1773	select CPU_SUPPORTS_32BIT_KERNEL
1774	select DMA_NONCOHERENT
1775	select IRQ_MIPS_CPU
1776	select SWAP_IO_SPACE
1777	select WEAK_ORDERING
1778	select CPU_SUPPORTS_HIGHMEM
1779	select CPU_HAS_PREFETCH
1780	select CPU_SUPPORTS_CPUFREQ
1781	select MIPS_EXTERNAL_TIMER
1782	help
1783	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1784
1785config CPU_XLR
1786	bool "Netlogic XLR SoC"
1787	depends on SYS_HAS_CPU_XLR
1788	select CPU_SUPPORTS_32BIT_KERNEL
1789	select CPU_SUPPORTS_64BIT_KERNEL
1790	select CPU_SUPPORTS_HIGHMEM
1791	select CPU_SUPPORTS_HUGEPAGES
1792	select WEAK_ORDERING
1793	select WEAK_REORDERING_BEYOND_LLSC
1794	help
1795	  Netlogic Microsystems XLR/XLS processors.
1796
1797config CPU_XLP
1798	bool "Netlogic XLP SoC"
1799	depends on SYS_HAS_CPU_XLP
1800	select CPU_SUPPORTS_32BIT_KERNEL
1801	select CPU_SUPPORTS_64BIT_KERNEL
1802	select CPU_SUPPORTS_HIGHMEM
1803	select WEAK_ORDERING
1804	select WEAK_REORDERING_BEYOND_LLSC
1805	select CPU_HAS_PREFETCH
1806	select CPU_MIPSR2
1807	select CPU_SUPPORTS_HUGEPAGES
1808	select MIPS_ASID_BITS_VARIABLE
1809	help
1810	  Netlogic Microsystems XLP processors.
1811endchoice
1812
1813config CPU_MIPS32_3_5_FEATURES
1814	bool "MIPS32 Release 3.5 Features"
1815	depends on SYS_HAS_CPU_MIPS32_R3_5
1816	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1817	help
1818	  Choose this option to build a kernel for release 2 or later of the
1819	  MIPS32 architecture including features from the 3.5 release such as
1820	  support for Enhanced Virtual Addressing (EVA).
1821
1822config CPU_MIPS32_3_5_EVA
1823	bool "Enhanced Virtual Addressing (EVA)"
1824	depends on CPU_MIPS32_3_5_FEATURES
1825	select EVA
1826	default y
1827	help
1828	  Choose this option if you want to enable the Enhanced Virtual
1829	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1830	  One of its primary benefits is an increase in the maximum size
1831	  of lowmem (up to 3GB). If unsure, say 'N' here.
1832
1833config CPU_MIPS32_R5_FEATURES
1834	bool "MIPS32 Release 5 Features"
1835	depends on SYS_HAS_CPU_MIPS32_R5
1836	depends on CPU_MIPS32_R2
1837	help
1838	  Choose this option to build a kernel for release 2 or later of the
1839	  MIPS32 architecture including features from release 5 such as
1840	  support for Extended Physical Addressing (XPA).
1841
1842config CPU_MIPS32_R5_XPA
1843	bool "Extended Physical Addressing (XPA)"
1844	depends on CPU_MIPS32_R5_FEATURES
1845	depends on !EVA
1846	depends on !PAGE_SIZE_4KB
1847	depends on SYS_SUPPORTS_HIGHMEM
1848	select XPA
1849	select HIGHMEM
1850	select PHYS_ADDR_T_64BIT
1851	default n
1852	help
1853	  Choose this option if you want to enable the Extended Physical
1854	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1855	  benefit is to increase physical addressing equal to or greater
1856	  than 40 bits. Note that this has the side effect of turning on
1857	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1858	  If unsure, say 'N' here.
1859
1860if CPU_LOONGSON2F
1861config CPU_NOP_WORKAROUNDS
1862	bool
1863
1864config CPU_JUMP_WORKAROUNDS
1865	bool
1866
1867config CPU_LOONGSON2F_WORKAROUNDS
1868	bool "Loongson 2F Workarounds"
1869	default y
1870	select CPU_NOP_WORKAROUNDS
1871	select CPU_JUMP_WORKAROUNDS
1872	help
1873	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1874	  require workarounds.  Without workarounds the system may hang
1875	  unexpectedly.  For more information please refer to the gas
1876	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1877
1878	  Loongson 2F03 and later have fixed these issues and no workarounds
1879	  are needed.  The workarounds have no significant side effect on them
1880	  but may decrease the performance of the system so this option should
1881	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1882	  systems.
1883
1884	  If unsure, please say Y.
1885endif # CPU_LOONGSON2F
1886
1887config SYS_SUPPORTS_ZBOOT
1888	bool
1889	select HAVE_KERNEL_GZIP
1890	select HAVE_KERNEL_BZIP2
1891	select HAVE_KERNEL_LZ4
1892	select HAVE_KERNEL_LZMA
1893	select HAVE_KERNEL_LZO
1894	select HAVE_KERNEL_XZ
1895
1896config SYS_SUPPORTS_ZBOOT_UART16550
1897	bool
1898	select SYS_SUPPORTS_ZBOOT
1899
1900config SYS_SUPPORTS_ZBOOT_UART_PROM
1901	bool
1902	select SYS_SUPPORTS_ZBOOT
1903
1904config CPU_LOONGSON2EF
1905	bool
1906	select CPU_SUPPORTS_32BIT_KERNEL
1907	select CPU_SUPPORTS_64BIT_KERNEL
1908	select CPU_SUPPORTS_HIGHMEM
1909	select CPU_SUPPORTS_HUGEPAGES
1910	select ARCH_HAS_PHYS_TO_DMA
1911
1912config CPU_LOONGSON32
1913	bool
1914	select CPU_MIPS32
1915	select CPU_MIPSR2
1916	select CPU_HAS_PREFETCH
1917	select CPU_SUPPORTS_32BIT_KERNEL
1918	select CPU_SUPPORTS_HIGHMEM
1919	select CPU_SUPPORTS_CPUFREQ
1920
1921config CPU_BMIPS32_3300
1922	select SMP_UP if SMP
1923	bool
1924
1925config CPU_BMIPS4350
1926	bool
1927	select SYS_SUPPORTS_SMP
1928	select SYS_SUPPORTS_HOTPLUG_CPU
1929
1930config CPU_BMIPS4380
1931	bool
1932	select MIPS_L1_CACHE_SHIFT_6
1933	select SYS_SUPPORTS_SMP
1934	select SYS_SUPPORTS_HOTPLUG_CPU
1935	select CPU_HAS_RIXI
1936
1937config CPU_BMIPS5000
1938	bool
1939	select MIPS_CPU_SCACHE
1940	select MIPS_L1_CACHE_SHIFT_7
1941	select SYS_SUPPORTS_SMP
1942	select SYS_SUPPORTS_HOTPLUG_CPU
1943	select CPU_HAS_RIXI
1944
1945config SYS_HAS_CPU_LOONGSON64
1946	bool
1947	select CPU_SUPPORTS_CPUFREQ
1948	select CPU_HAS_RIXI
1949
1950config SYS_HAS_CPU_LOONGSON2E
1951	bool
1952
1953config SYS_HAS_CPU_LOONGSON2F
1954	bool
1955	select CPU_SUPPORTS_CPUFREQ
1956	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1957
1958config SYS_HAS_CPU_LOONGSON1B
1959	bool
1960
1961config SYS_HAS_CPU_LOONGSON1C
1962	bool
1963
1964config SYS_HAS_CPU_MIPS32_R1
1965	bool
1966
1967config SYS_HAS_CPU_MIPS32_R2
1968	bool
1969
1970config SYS_HAS_CPU_MIPS32_R3_5
1971	bool
1972
1973config SYS_HAS_CPU_MIPS32_R5
1974	bool
1975	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1976
1977config SYS_HAS_CPU_MIPS32_R6
1978	bool
1979	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1980
1981config SYS_HAS_CPU_MIPS64_R1
1982	bool
1983
1984config SYS_HAS_CPU_MIPS64_R2
1985	bool
1986
1987config SYS_HAS_CPU_MIPS64_R6
1988	bool
1989	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1990
1991config SYS_HAS_CPU_R3000
1992	bool
1993
1994config SYS_HAS_CPU_TX39XX
1995	bool
1996
1997config SYS_HAS_CPU_VR41XX
1998	bool
1999
2000config SYS_HAS_CPU_R4X00
2001	bool
2002
2003config SYS_HAS_CPU_TX49XX
2004	bool
2005
2006config SYS_HAS_CPU_R5000
2007	bool
2008
2009config SYS_HAS_CPU_R5500
2010	bool
2011
2012config SYS_HAS_CPU_NEVADA
2013	bool
2014
2015config SYS_HAS_CPU_R10000
2016	bool
2017	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2018
2019config SYS_HAS_CPU_RM7000
2020	bool
2021
2022config SYS_HAS_CPU_SB1
2023	bool
2024
2025config SYS_HAS_CPU_CAVIUM_OCTEON
2026	bool
2027
2028config SYS_HAS_CPU_BMIPS
2029	bool
2030
2031config SYS_HAS_CPU_BMIPS32_3300
2032	bool
2033	select SYS_HAS_CPU_BMIPS
2034
2035config SYS_HAS_CPU_BMIPS4350
2036	bool
2037	select SYS_HAS_CPU_BMIPS
2038
2039config SYS_HAS_CPU_BMIPS4380
2040	bool
2041	select SYS_HAS_CPU_BMIPS
2042
2043config SYS_HAS_CPU_BMIPS5000
2044	bool
2045	select SYS_HAS_CPU_BMIPS
2046	select ARCH_HAS_SYNC_DMA_FOR_CPU
2047
2048config SYS_HAS_CPU_XLR
2049	bool
2050
2051config SYS_HAS_CPU_XLP
2052	bool
2053
2054#
2055# CPU may reorder R->R, R->W, W->R, W->W
2056# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2057#
2058config WEAK_ORDERING
2059	bool
2060
2061#
2062# CPU may reorder reads and writes beyond LL/SC
2063# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2064#
2065config WEAK_REORDERING_BEYOND_LLSC
2066	bool
2067endmenu
2068
2069#
2070# These two indicate any level of the MIPS32 and MIPS64 architecture
2071#
2072config CPU_MIPS32
2073	bool
2074	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2075
2076config CPU_MIPS64
2077	bool
2078	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2079
2080#
2081# These indicate the revision of the architecture
2082#
2083config CPU_MIPSR1
2084	bool
2085	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2086
2087config CPU_MIPSR2
2088	bool
2089	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2090	select CPU_HAS_RIXI
2091	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2092	select MIPS_SPRAM
2093
2094config CPU_MIPSR6
2095	bool
2096	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2097	select CPU_HAS_RIXI
2098	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2099	select HAVE_ARCH_BITREVERSE
2100	select MIPS_ASID_BITS_VARIABLE
2101	select MIPS_CRC_SUPPORT
2102	select MIPS_SPRAM
2103
2104config TARGET_ISA_REV
2105	int
2106	default 1 if CPU_MIPSR1
2107	default 2 if CPU_MIPSR2
2108	default 6 if CPU_MIPSR6
2109	default 0
2110	help
2111	  Reflects the ISA revision being targeted by the kernel build. This
2112	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2113
2114config EVA
2115	bool
2116
2117config XPA
2118	bool
2119
2120config SYS_SUPPORTS_32BIT_KERNEL
2121	bool
2122config SYS_SUPPORTS_64BIT_KERNEL
2123	bool
2124config CPU_SUPPORTS_32BIT_KERNEL
2125	bool
2126config CPU_SUPPORTS_64BIT_KERNEL
2127	bool
2128config CPU_SUPPORTS_CPUFREQ
2129	bool
2130config CPU_SUPPORTS_ADDRWINCFG
2131	bool
2132config CPU_SUPPORTS_HUGEPAGES
2133	bool
2134	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2135config MIPS_PGD_C0_CONTEXT
2136	bool
2137	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2138
2139#
2140# Set to y for ptrace access to watch registers.
2141#
2142config HARDWARE_WATCHPOINTS
2143	bool
2144	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2145
2146menu "Kernel type"
2147
2148choice
2149	prompt "Kernel code model"
2150	help
2151	  You should only select this option if you have a workload that
2152	  actually benefits from 64-bit processing or if your machine has
2153	  large memory.  You will only be presented a single option in this
2154	  menu if your system does not support both 32-bit and 64-bit kernels.
2155
2156config 32BIT
2157	bool "32-bit kernel"
2158	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2159	select TRAD_SIGNALS
2160	help
2161	  Select this option if you want to build a 32-bit kernel.
2162
2163config 64BIT
2164	bool "64-bit kernel"
2165	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2166	help
2167	  Select this option if you want to build a 64-bit kernel.
2168
2169endchoice
2170
2171config KVM_GUEST
2172	bool "KVM Guest Kernel"
2173	depends on BROKEN_ON_SMP
2174	help
2175	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2176	  mode.
2177
2178config KVM_GUEST_TIMER_FREQ
2179	int "Count/Compare Timer Frequency (MHz)"
2180	depends on KVM_GUEST
2181	default 100
2182	help
2183	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2184	  emulation when determining guest CPU Frequency. Instead, the guest's
2185	  timer frequency is specified directly.
2186
2187config MIPS_VA_BITS_48
2188	bool "48 bits virtual memory"
2189	depends on 64BIT
2190	help
2191	  Support a maximum at least 48 bits of application virtual
2192	  memory.  Default is 40 bits or less, depending on the CPU.
2193	  For page sizes 16k and above, this option results in a small
2194	  memory overhead for page tables.  For 4k page size, a fourth
2195	  level of page tables is added which imposes both a memory
2196	  overhead as well as slower TLB fault handling.
2197
2198	  If unsure, say N.
2199
2200choice
2201	prompt "Kernel page size"
2202	default PAGE_SIZE_4KB
2203
2204config PAGE_SIZE_4KB
2205	bool "4kB"
2206	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2207	help
2208	  This option select the standard 4kB Linux page size.  On some
2209	  R3000-family processors this is the only available page size.  Using
2210	  4kB page size will minimize memory consumption and is therefore
2211	  recommended for low memory systems.
2212
2213config PAGE_SIZE_8KB
2214	bool "8kB"
2215	depends on CPU_CAVIUM_OCTEON
2216	depends on !MIPS_VA_BITS_48
2217	help
2218	  Using 8kB page size will result in higher performance kernel at
2219	  the price of higher memory consumption.  This option is available
2220	  only on cnMIPS processors.  Note that you will need a suitable Linux
2221	  distribution to support this.
2222
2223config PAGE_SIZE_16KB
2224	bool "16kB"
2225	depends on !CPU_R3000 && !CPU_TX39XX
2226	help
2227	  Using 16kB page size will result in higher performance kernel at
2228	  the price of higher memory consumption.  This option is available on
2229	  all non-R3000 family processors.  Note that you will need a suitable
2230	  Linux distribution to support this.
2231
2232config PAGE_SIZE_32KB
2233	bool "32kB"
2234	depends on CPU_CAVIUM_OCTEON
2235	depends on !MIPS_VA_BITS_48
2236	help
2237	  Using 32kB page size will result in higher performance kernel at
2238	  the price of higher memory consumption.  This option is available
2239	  only on cnMIPS cores.  Note that you will need a suitable Linux
2240	  distribution to support this.
2241
2242config PAGE_SIZE_64KB
2243	bool "64kB"
2244	depends on !CPU_R3000 && !CPU_TX39XX
2245	help
2246	  Using 64kB page size will result in higher performance kernel at
2247	  the price of higher memory consumption.  This option is available on
2248	  all non-R3000 family processor.  Not that at the time of this
2249	  writing this option is still high experimental.
2250
2251endchoice
2252
2253config FORCE_MAX_ZONEORDER
2254	int "Maximum zone order"
2255	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2256	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2257	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2258	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2259	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2260	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2261	range 11 64
2262	default "11"
2263	help
2264	  The kernel memory allocator divides physically contiguous memory
2265	  blocks into "zones", where each zone is a power of two number of
2266	  pages.  This option selects the largest power of two that the kernel
2267	  keeps in the memory allocator.  If you need to allocate very large
2268	  blocks of physically contiguous memory, then you may need to
2269	  increase this value.
2270
2271	  This config option is actually maximum order plus one. For example,
2272	  a value of 11 means that the largest free memory block is 2^10 pages.
2273
2274	  The page size is not necessarily 4KB.  Keep this in mind
2275	  when choosing a value for this option.
2276
2277config BOARD_SCACHE
2278	bool
2279
2280config IP22_CPU_SCACHE
2281	bool
2282	select BOARD_SCACHE
2283
2284#
2285# Support for a MIPS32 / MIPS64 style S-caches
2286#
2287config MIPS_CPU_SCACHE
2288	bool
2289	select BOARD_SCACHE
2290
2291config R5000_CPU_SCACHE
2292	bool
2293	select BOARD_SCACHE
2294
2295config RM7000_CPU_SCACHE
2296	bool
2297	select BOARD_SCACHE
2298
2299config SIBYTE_DMA_PAGEOPS
2300	bool "Use DMA to clear/copy pages"
2301	depends on CPU_SB1
2302	help
2303	  Instead of using the CPU to zero and copy pages, use a Data Mover
2304	  channel.  These DMA channels are otherwise unused by the standard
2305	  SiByte Linux port.  Seems to give a small performance benefit.
2306
2307config CPU_HAS_PREFETCH
2308	bool
2309
2310config CPU_GENERIC_DUMP_TLB
2311	bool
2312	default y if !(CPU_R3000 || CPU_TX39XX)
2313
2314config MIPS_FP_SUPPORT
2315	bool "Floating Point support" if EXPERT
2316	default y
2317	help
2318	  Select y to include support for floating point in the kernel
2319	  including initialization of FPU hardware, FP context save & restore
2320	  and emulation of an FPU where necessary. Without this support any
2321	  userland program attempting to use floating point instructions will
2322	  receive a SIGILL.
2323
2324	  If you know that your userland will not attempt to use floating point
2325	  instructions then you can say n here to shrink the kernel a little.
2326
2327	  If unsure, say y.
2328
2329config CPU_R2300_FPU
2330	bool
2331	depends on MIPS_FP_SUPPORT
2332	default y if CPU_R3000 || CPU_TX39XX
2333
2334config CPU_R3K_TLB
2335	bool
2336
2337config CPU_R4K_FPU
2338	bool
2339	depends on MIPS_FP_SUPPORT
2340	default y if !CPU_R2300_FPU
2341
2342config CPU_R4K_CACHE_TLB
2343	bool
2344	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2345
2346config MIPS_MT_SMP
2347	bool "MIPS MT SMP support (1 TC on each available VPE)"
2348	default y
2349	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2350	select CPU_MIPSR2_IRQ_VI
2351	select CPU_MIPSR2_IRQ_EI
2352	select SYNC_R4K
2353	select MIPS_MT
2354	select SMP
2355	select SMP_UP
2356	select SYS_SUPPORTS_SMP
2357	select SYS_SUPPORTS_SCHED_SMT
2358	select MIPS_PERF_SHARED_TC_COUNTERS
2359	help
2360	  This is a kernel model which is known as SMVP. This is supported
2361	  on cores with the MT ASE and uses the available VPEs to implement
2362	  virtual processors which supports SMP. This is equivalent to the
2363	  Intel Hyperthreading feature. For further information go to
2364	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2365
2366config MIPS_MT
2367	bool
2368
2369config SCHED_SMT
2370	bool "SMT (multithreading) scheduler support"
2371	depends on SYS_SUPPORTS_SCHED_SMT
2372	default n
2373	help
2374	  SMT scheduler support improves the CPU scheduler's decision making
2375	  when dealing with MIPS MT enabled cores at a cost of slightly
2376	  increased overhead in some places. If unsure say N here.
2377
2378config SYS_SUPPORTS_SCHED_SMT
2379	bool
2380
2381config SYS_SUPPORTS_MULTITHREADING
2382	bool
2383
2384config MIPS_MT_FPAFF
2385	bool "Dynamic FPU affinity for FP-intensive threads"
2386	default y
2387	depends on MIPS_MT_SMP
2388
2389config MIPSR2_TO_R6_EMULATOR
2390	bool "MIPS R2-to-R6 emulator"
2391	depends on CPU_MIPSR6
2392	depends on MIPS_FP_SUPPORT
2393	default y
2394	help
2395	  Choose this option if you want to run non-R6 MIPS userland code.
2396	  Even if you say 'Y' here, the emulator will still be disabled by
2397	  default. You can enable it using the 'mipsr2emu' kernel option.
2398	  The only reason this is a build-time option is to save ~14K from the
2399	  final kernel image.
2400
2401config SYS_SUPPORTS_VPE_LOADER
2402	bool
2403	depends on SYS_SUPPORTS_MULTITHREADING
2404	help
2405	  Indicates that the platform supports the VPE loader, and provides
2406	  physical_memsize.
2407
2408config MIPS_VPE_LOADER
2409	bool "VPE loader support."
2410	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2411	select CPU_MIPSR2_IRQ_VI
2412	select CPU_MIPSR2_IRQ_EI
2413	select MIPS_MT
2414	help
2415	  Includes a loader for loading an elf relocatable object
2416	  onto another VPE and running it.
2417
2418config MIPS_VPE_LOADER_CMP
2419	bool
2420	default "y"
2421	depends on MIPS_VPE_LOADER && MIPS_CMP
2422
2423config MIPS_VPE_LOADER_MT
2424	bool
2425	default "y"
2426	depends on MIPS_VPE_LOADER && !MIPS_CMP
2427
2428config MIPS_VPE_LOADER_TOM
2429	bool "Load VPE program into memory hidden from linux"
2430	depends on MIPS_VPE_LOADER
2431	default y
2432	help
2433	  The loader can use memory that is present but has been hidden from
2434	  Linux using the kernel command line option "mem=xxMB". It's up to
2435	  you to ensure the amount you put in the option and the space your
2436	  program requires is less or equal to the amount physically present.
2437
2438config MIPS_VPE_APSP_API
2439	bool "Enable support for AP/SP API (RTLX)"
2440	depends on MIPS_VPE_LOADER
2441
2442config MIPS_VPE_APSP_API_CMP
2443	bool
2444	default "y"
2445	depends on MIPS_VPE_APSP_API && MIPS_CMP
2446
2447config MIPS_VPE_APSP_API_MT
2448	bool
2449	default "y"
2450	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2451
2452config MIPS_CMP
2453	bool "MIPS CMP framework support (DEPRECATED)"
2454	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2455	select SMP
2456	select SYNC_R4K
2457	select SYS_SUPPORTS_SMP
2458	select WEAK_ORDERING
2459	default n
2460	help
2461	  Select this if you are using a bootloader which implements the "CMP
2462	  framework" protocol (ie. YAMON) and want your kernel to make use of
2463	  its ability to start secondary CPUs.
2464
2465	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2466	  instead of this.
2467
2468config MIPS_CPS
2469	bool "MIPS Coherent Processing System support"
2470	depends on SYS_SUPPORTS_MIPS_CPS
2471	select MIPS_CM
2472	select MIPS_CPS_PM if HOTPLUG_CPU
2473	select SMP
2474	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2475	select SYS_SUPPORTS_HOTPLUG_CPU
2476	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2477	select SYS_SUPPORTS_SMP
2478	select WEAK_ORDERING
2479	help
2480	  Select this if you wish to run an SMP kernel across multiple cores
2481	  within a MIPS Coherent Processing System. When this option is
2482	  enabled the kernel will probe for other cores and boot them with
2483	  no external assistance. It is safe to enable this when hardware
2484	  support is unavailable.
2485
2486config MIPS_CPS_PM
2487	depends on MIPS_CPS
2488	bool
2489
2490config MIPS_CM
2491	bool
2492	select MIPS_CPC
2493
2494config MIPS_CPC
2495	bool
2496
2497config SB1_PASS_2_WORKAROUNDS
2498	bool
2499	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2500	default y
2501
2502config SB1_PASS_2_1_WORKAROUNDS
2503	bool
2504	depends on CPU_SB1 && CPU_SB1_PASS_2
2505	default y
2506
2507choice
2508	prompt "SmartMIPS or microMIPS ASE support"
2509
2510config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2511	bool "None"
2512	help
2513	  Select this if you want neither microMIPS nor SmartMIPS support
2514
2515config CPU_HAS_SMARTMIPS
2516	depends on SYS_SUPPORTS_SMARTMIPS
2517	bool "SmartMIPS"
2518	help
2519	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2520	  increased security at both hardware and software level for
2521	  smartcards.  Enabling this option will allow proper use of the
2522	  SmartMIPS instructions by Linux applications.  However a kernel with
2523	  this option will not work on a MIPS core without SmartMIPS core.  If
2524	  you don't know you probably don't have SmartMIPS and should say N
2525	  here.
2526
2527config CPU_MICROMIPS
2528	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2529	bool "microMIPS"
2530	help
2531	  When this option is enabled the kernel will be built using the
2532	  microMIPS ISA
2533
2534endchoice
2535
2536config CPU_HAS_MSA
2537	bool "Support for the MIPS SIMD Architecture"
2538	depends on CPU_SUPPORTS_MSA
2539	depends on MIPS_FP_SUPPORT
2540	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2541	help
2542	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2543	  and a set of SIMD instructions to operate on them. When this option
2544	  is enabled the kernel will support allocating & switching MSA
2545	  vector register contexts. If you know that your kernel will only be
2546	  running on CPUs which do not support MSA or that your userland will
2547	  not be making use of it then you may wish to say N here to reduce
2548	  the size & complexity of your kernel.
2549
2550	  If unsure, say Y.
2551
2552config CPU_HAS_WB
2553	bool
2554
2555config XKS01
2556	bool
2557
2558config CPU_HAS_DIEI
2559	depends on !CPU_DIEI_BROKEN
2560	bool
2561
2562config CPU_DIEI_BROKEN
2563	bool
2564
2565config CPU_HAS_RIXI
2566	bool
2567
2568config CPU_NO_LOAD_STORE_LR
2569	bool
2570	help
2571	  CPU lacks support for unaligned load and store instructions:
2572	  LWL, LWR, SWL, SWR (Load/store word left/right).
2573	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2574	  systems).
2575
2576#
2577# Vectored interrupt mode is an R2 feature
2578#
2579config CPU_MIPSR2_IRQ_VI
2580	bool
2581
2582#
2583# Extended interrupt mode is an R2 feature
2584#
2585config CPU_MIPSR2_IRQ_EI
2586	bool
2587
2588config CPU_HAS_SYNC
2589	bool
2590	depends on !CPU_R3000
2591	default y
2592
2593#
2594# CPU non-features
2595#
2596config CPU_DADDI_WORKAROUNDS
2597	bool
2598
2599config CPU_R4000_WORKAROUNDS
2600	bool
2601	select CPU_R4400_WORKAROUNDS
2602
2603config CPU_R4400_WORKAROUNDS
2604	bool
2605
2606config CPU_R4X00_BUGS64
2607	bool
2608	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2609
2610config MIPS_ASID_SHIFT
2611	int
2612	default 6 if CPU_R3000 || CPU_TX39XX
2613	default 0
2614
2615config MIPS_ASID_BITS
2616	int
2617	default 0 if MIPS_ASID_BITS_VARIABLE
2618	default 6 if CPU_R3000 || CPU_TX39XX
2619	default 8
2620
2621config MIPS_ASID_BITS_VARIABLE
2622	bool
2623
2624config MIPS_CRC_SUPPORT
2625	bool
2626
2627#
2628# - Highmem only makes sense for the 32-bit kernel.
2629# - The current highmem code will only work properly on physically indexed
2630#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2631#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2632#   moment we protect the user and offer the highmem option only on machines
2633#   where it's known to be safe.  This will not offer highmem on a few systems
2634#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2635#   indexed CPUs but we're playing safe.
2636# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2637#   know they might have memory configurations that could make use of highmem
2638#   support.
2639#
2640config HIGHMEM
2641	bool "High Memory Support"
2642	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2643
2644config CPU_SUPPORTS_HIGHMEM
2645	bool
2646
2647config SYS_SUPPORTS_HIGHMEM
2648	bool
2649
2650config SYS_SUPPORTS_SMARTMIPS
2651	bool
2652
2653config SYS_SUPPORTS_MICROMIPS
2654	bool
2655
2656config SYS_SUPPORTS_MIPS16
2657	bool
2658	help
2659	  This option must be set if a kernel might be executed on a MIPS16-
2660	  enabled CPU even if MIPS16 is not actually being used.  In other
2661	  words, it makes the kernel MIPS16-tolerant.
2662
2663config CPU_SUPPORTS_MSA
2664	bool
2665
2666config ARCH_FLATMEM_ENABLE
2667	def_bool y
2668	depends on !NUMA && !CPU_LOONGSON2EF
2669
2670config ARCH_SPARSEMEM_ENABLE
2671	bool
2672	select SPARSEMEM_STATIC if !SGI_IP27
2673
2674config NUMA
2675	bool "NUMA Support"
2676	depends on SYS_SUPPORTS_NUMA
2677	help
2678	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2679	  Access).  This option improves performance on systems with more
2680	  than two nodes; on two node systems it is generally better to
2681	  leave it disabled; on single node systems leave this option
2682	  disabled.
2683
2684config SYS_SUPPORTS_NUMA
2685	bool
2686
2687config HAVE_SETUP_PER_CPU_AREA
2688	def_bool y
2689	depends on NUMA
2690
2691config NEED_PER_CPU_EMBED_FIRST_CHUNK
2692	def_bool y
2693	depends on NUMA
2694
2695config RELOCATABLE
2696	bool "Relocatable kernel"
2697	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2698	help
2699	  This builds a kernel image that retains relocation information
2700	  so it can be loaded someplace besides the default 1MB.
2701	  The relocations make the kernel binary about 15% larger,
2702	  but are discarded at runtime
2703
2704config RELOCATION_TABLE_SIZE
2705	hex "Relocation table size"
2706	depends on RELOCATABLE
2707	range 0x0 0x01000000
2708	default "0x00100000"
2709	---help---
2710	  A table of relocation data will be appended to the kernel binary
2711	  and parsed at boot to fix up the relocated kernel.
2712
2713	  This option allows the amount of space reserved for the table to be
2714	  adjusted, although the default of 1Mb should be ok in most cases.
2715
2716	  The build will fail and a valid size suggested if this is too small.
2717
2718	  If unsure, leave at the default value.
2719
2720config RANDOMIZE_BASE
2721	bool "Randomize the address of the kernel image"
2722	depends on RELOCATABLE
2723	---help---
2724	  Randomizes the physical and virtual address at which the
2725	  kernel image is loaded, as a security feature that
2726	  deters exploit attempts relying on knowledge of the location
2727	  of kernel internals.
2728
2729	  Entropy is generated using any coprocessor 0 registers available.
2730
2731	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2732
2733	  If unsure, say N.
2734
2735config RANDOMIZE_BASE_MAX_OFFSET
2736	hex "Maximum kASLR offset" if EXPERT
2737	depends on RANDOMIZE_BASE
2738	range 0x0 0x40000000 if EVA || 64BIT
2739	range 0x0 0x08000000
2740	default "0x01000000"
2741	---help---
2742	  When kASLR is active, this provides the maximum offset that will
2743	  be applied to the kernel image. It should be set according to the
2744	  amount of physical RAM available in the target system minus
2745	  PHYSICAL_START and must be a power of 2.
2746
2747	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2748	  EVA or 64-bit. The default is 16Mb.
2749
2750config NODES_SHIFT
2751	int
2752	default "6"
2753	depends on NEED_MULTIPLE_NODES
2754
2755config HW_PERF_EVENTS
2756	bool "Enable hardware performance counter support for perf events"
2757	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2758	default y
2759	help
2760	  Enable hardware performance counter support for perf events. If
2761	  disabled, perf events will use software events only.
2762
2763config DMI
2764	bool "Enable DMI scanning"
2765	depends on MACH_LOONGSON64
2766	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2767	default y
2768	help
2769	  Enabled scanning of DMI to identify machine quirks. Say Y
2770	  here unless you have verified that your setup is not
2771	  affected by entries in the DMI blacklist. Required by PNP
2772	  BIOS code.
2773
2774config SMP
2775	bool "Multi-Processing support"
2776	depends on SYS_SUPPORTS_SMP
2777	help
2778	  This enables support for systems with more than one CPU. If you have
2779	  a system with only one CPU, say N. If you have a system with more
2780	  than one CPU, say Y.
2781
2782	  If you say N here, the kernel will run on uni- and multiprocessor
2783	  machines, but will use only one CPU of a multiprocessor machine. If
2784	  you say Y here, the kernel will run on many, but not all,
2785	  uniprocessor machines. On a uniprocessor machine, the kernel
2786	  will run faster if you say N here.
2787
2788	  People using multiprocessor machines who say Y here should also say
2789	  Y to "Enhanced Real Time Clock Support", below.
2790
2791	  See also the SMP-HOWTO available at
2792	  <http://www.tldp.org/docs.html#howto>.
2793
2794	  If you don't know what to do here, say N.
2795
2796config HOTPLUG_CPU
2797	bool "Support for hot-pluggable CPUs"
2798	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2799	help
2800	  Say Y here to allow turning CPUs off and on. CPUs can be
2801	  controlled through /sys/devices/system/cpu.
2802	  (Note: power management support will enable this option
2803	    automatically on SMP systems. )
2804	  Say N if you want to disable CPU hotplug.
2805
2806config SMP_UP
2807	bool
2808
2809config SYS_SUPPORTS_MIPS_CMP
2810	bool
2811
2812config SYS_SUPPORTS_MIPS_CPS
2813	bool
2814
2815config SYS_SUPPORTS_SMP
2816	bool
2817
2818config NR_CPUS_DEFAULT_4
2819	bool
2820
2821config NR_CPUS_DEFAULT_8
2822	bool
2823
2824config NR_CPUS_DEFAULT_16
2825	bool
2826
2827config NR_CPUS_DEFAULT_32
2828	bool
2829
2830config NR_CPUS_DEFAULT_64
2831	bool
2832
2833config NR_CPUS
2834	int "Maximum number of CPUs (2-256)"
2835	range 2 256
2836	depends on SMP
2837	default "4" if NR_CPUS_DEFAULT_4
2838	default "8" if NR_CPUS_DEFAULT_8
2839	default "16" if NR_CPUS_DEFAULT_16
2840	default "32" if NR_CPUS_DEFAULT_32
2841	default "64" if NR_CPUS_DEFAULT_64
2842	help
2843	  This allows you to specify the maximum number of CPUs which this
2844	  kernel will support.  The maximum supported value is 32 for 32-bit
2845	  kernel and 64 for 64-bit kernels; the minimum value which makes
2846	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2847	  and 2 for all others.
2848
2849	  This is purely to save memory - each supported CPU adds
2850	  approximately eight kilobytes to the kernel image.  For best
2851	  performance should round up your number of processors to the next
2852	  power of two.
2853
2854config MIPS_PERF_SHARED_TC_COUNTERS
2855	bool
2856
2857config MIPS_NR_CPU_NR_MAP_1024
2858	bool
2859
2860config MIPS_NR_CPU_NR_MAP
2861	int
2862	depends on SMP
2863	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2864	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2865
2866#
2867# Timer Interrupt Frequency Configuration
2868#
2869
2870choice
2871	prompt "Timer frequency"
2872	default HZ_250
2873	help
2874	  Allows the configuration of the timer frequency.
2875
2876	config HZ_24
2877		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2878
2879	config HZ_48
2880		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2881
2882	config HZ_100
2883		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2884
2885	config HZ_128
2886		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2887
2888	config HZ_250
2889		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2890
2891	config HZ_256
2892		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2893
2894	config HZ_1000
2895		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2896
2897	config HZ_1024
2898		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2899
2900endchoice
2901
2902config SYS_SUPPORTS_24HZ
2903	bool
2904
2905config SYS_SUPPORTS_48HZ
2906	bool
2907
2908config SYS_SUPPORTS_100HZ
2909	bool
2910
2911config SYS_SUPPORTS_128HZ
2912	bool
2913
2914config SYS_SUPPORTS_250HZ
2915	bool
2916
2917config SYS_SUPPORTS_256HZ
2918	bool
2919
2920config SYS_SUPPORTS_1000HZ
2921	bool
2922
2923config SYS_SUPPORTS_1024HZ
2924	bool
2925
2926config SYS_SUPPORTS_ARBIT_HZ
2927	bool
2928	default y if !SYS_SUPPORTS_24HZ && \
2929		     !SYS_SUPPORTS_48HZ && \
2930		     !SYS_SUPPORTS_100HZ && \
2931		     !SYS_SUPPORTS_128HZ && \
2932		     !SYS_SUPPORTS_250HZ && \
2933		     !SYS_SUPPORTS_256HZ && \
2934		     !SYS_SUPPORTS_1000HZ && \
2935		     !SYS_SUPPORTS_1024HZ
2936
2937config HZ
2938	int
2939	default 24 if HZ_24
2940	default 48 if HZ_48
2941	default 100 if HZ_100
2942	default 128 if HZ_128
2943	default 250 if HZ_250
2944	default 256 if HZ_256
2945	default 1000 if HZ_1000
2946	default 1024 if HZ_1024
2947
2948config SCHED_HRTICK
2949	def_bool HIGH_RES_TIMERS
2950
2951config KEXEC
2952	bool "Kexec system call"
2953	select KEXEC_CORE
2954	help
2955	  kexec is a system call that implements the ability to shutdown your
2956	  current kernel, and to start another kernel.  It is like a reboot
2957	  but it is independent of the system firmware.   And like a reboot
2958	  you can start any kernel with it, not just Linux.
2959
2960	  The name comes from the similarity to the exec system call.
2961
2962	  It is an ongoing process to be certain the hardware in a machine
2963	  is properly shutdown, so do not be surprised if this code does not
2964	  initially work for you.  As of this writing the exact hardware
2965	  interface is strongly in flux, so no good recommendation can be
2966	  made.
2967
2968config CRASH_DUMP
2969	bool "Kernel crash dumps"
2970	help
2971	  Generate crash dump after being started by kexec.
2972	  This should be normally only set in special crash dump kernels
2973	  which are loaded in the main kernel with kexec-tools into
2974	  a specially reserved region and then later executed after
2975	  a crash by kdump/kexec. The crash dump kernel must be compiled
2976	  to a memory address not used by the main kernel or firmware using
2977	  PHYSICAL_START.
2978
2979config PHYSICAL_START
2980	hex "Physical address where the kernel is loaded"
2981	default "0xffffffff84000000"
2982	depends on CRASH_DUMP
2983	help
2984	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2985	  If you plan to use kernel for capturing the crash dump change
2986	  this value to start of the reserved region (the "X" value as
2987	  specified in the "crashkernel=YM@XM" command line boot parameter
2988	  passed to the panic-ed kernel).
2989
2990config SECCOMP
2991	bool "Enable seccomp to safely compute untrusted bytecode"
2992	depends on PROC_FS
2993	default y
2994	help
2995	  This kernel feature is useful for number crunching applications
2996	  that may need to compute untrusted bytecode during their
2997	  execution. By using pipes or other transports made available to
2998	  the process as file descriptors supporting the read/write
2999	  syscalls, it's possible to isolate those applications in
3000	  their own address space using seccomp. Once seccomp is
3001	  enabled via /proc/<pid>/seccomp, it cannot be disabled
3002	  and the task is only allowed to execute a few safe syscalls
3003	  defined by each seccomp mode.
3004
3005	  If unsure, say Y. Only embedded should say N here.
3006
3007config MIPS_O32_FP64_SUPPORT
3008	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3009	depends on 32BIT || MIPS32_O32
3010	help
3011	  When this is enabled, the kernel will support use of 64-bit floating
3012	  point registers with binaries using the O32 ABI along with the
3013	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3014	  32-bit MIPS systems this support is at the cost of increasing the
3015	  size and complexity of the compiled FPU emulator. Thus if you are
3016	  running a MIPS32 system and know that none of your userland binaries
3017	  will require 64-bit floating point, you may wish to reduce the size
3018	  of your kernel & potentially improve FP emulation performance by
3019	  saying N here.
3020
3021	  Although binutils currently supports use of this flag the details
3022	  concerning its effect upon the O32 ABI in userland are still being
3023	  worked on. In order to avoid userland becoming dependant upon current
3024	  behaviour before the details have been finalised, this option should
3025	  be considered experimental and only enabled by those working upon
3026	  said details.
3027
3028	  If unsure, say N.
3029
3030config USE_OF
3031	bool
3032	select OF
3033	select OF_EARLY_FLATTREE
3034	select IRQ_DOMAIN
3035
3036config UHI_BOOT
3037	bool
3038
3039config BUILTIN_DTB
3040	bool
3041
3042choice
3043	prompt "Kernel appended dtb support" if USE_OF
3044	default MIPS_NO_APPENDED_DTB
3045
3046	config MIPS_NO_APPENDED_DTB
3047		bool "None"
3048		help
3049		  Do not enable appended dtb support.
3050
3051	config MIPS_ELF_APPENDED_DTB
3052		bool "vmlinux"
3053		help
3054		  With this option, the boot code will look for a device tree binary
3055		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3056		  it is empty and the DTB can be appended using binutils command
3057		  objcopy:
3058
3059		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3060
3061		  This is meant as a backward compatiblity convenience for those
3062		  systems with a bootloader that can't be upgraded to accommodate
3063		  the documented boot protocol using a device tree.
3064
3065	config MIPS_RAW_APPENDED_DTB
3066		bool "vmlinux.bin or vmlinuz.bin"
3067		help
3068		  With this option, the boot code will look for a device tree binary
3069		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3070		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3071
3072		  This is meant as a backward compatibility convenience for those
3073		  systems with a bootloader that can't be upgraded to accommodate
3074		  the documented boot protocol using a device tree.
3075
3076		  Beware that there is very little in terms of protection against
3077		  this option being confused by leftover garbage in memory that might
3078		  look like a DTB header after a reboot if no actual DTB is appended
3079		  to vmlinux.bin.  Do not leave this option active in a production kernel
3080		  if you don't intend to always append a DTB.
3081endchoice
3082
3083choice
3084	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3085	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3086					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3087					 !CAVIUM_OCTEON_SOC
3088	default MIPS_CMDLINE_FROM_BOOTLOADER
3089
3090	config MIPS_CMDLINE_FROM_DTB
3091		depends on USE_OF
3092		bool "Dtb kernel arguments if available"
3093
3094	config MIPS_CMDLINE_DTB_EXTEND
3095		depends on USE_OF
3096		bool "Extend dtb kernel arguments with bootloader arguments"
3097
3098	config MIPS_CMDLINE_FROM_BOOTLOADER
3099		bool "Bootloader kernel arguments if available"
3100
3101	config MIPS_CMDLINE_BUILTIN_EXTEND
3102		depends on CMDLINE_BOOL
3103		bool "Extend builtin kernel arguments with bootloader arguments"
3104endchoice
3105
3106endmenu
3107
3108config LOCKDEP_SUPPORT
3109	bool
3110	default y
3111
3112config STACKTRACE_SUPPORT
3113	bool
3114	default y
3115
3116config PGTABLE_LEVELS
3117	int
3118	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3119	default 3 if 64BIT && !PAGE_SIZE_64KB
3120	default 2
3121
3122config MIPS_AUTO_PFN_OFFSET
3123	bool
3124
3125menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3126
3127config PCI_DRIVERS_GENERIC
3128	select PCI_DOMAINS_GENERIC if PCI
3129	bool
3130
3131config PCI_DRIVERS_LEGACY
3132	def_bool !PCI_DRIVERS_GENERIC
3133	select NO_GENERIC_PCI_IOPORT_MAP
3134	select PCI_DOMAINS if PCI
3135
3136#
3137# ISA support is now enabled via select.  Too many systems still have the one
3138# or other ISA chip on the board that users don't know about so don't expect
3139# users to choose the right thing ...
3140#
3141config ISA
3142	bool
3143
3144config TC
3145	bool "TURBOchannel support"
3146	depends on MACH_DECSTATION
3147	help
3148	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3149	  processors.  TURBOchannel programming specifications are available
3150	  at:
3151	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3152	  and:
3153	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3154	  Linux driver support status is documented at:
3155	  <http://www.linux-mips.org/wiki/DECstation>
3156
3157config MMU
3158	bool
3159	default y
3160
3161config ARCH_MMAP_RND_BITS_MIN
3162	default 12 if 64BIT
3163	default 8
3164
3165config ARCH_MMAP_RND_BITS_MAX
3166	default 18 if 64BIT
3167	default 15
3168
3169config ARCH_MMAP_RND_COMPAT_BITS_MIN
3170	default 8
3171
3172config ARCH_MMAP_RND_COMPAT_BITS_MAX
3173	default 15
3174
3175config I8253
3176	bool
3177	select CLKSRC_I8253
3178	select CLKEVT_I8253
3179	select MIPS_EXTERNAL_TIMER
3180
3181config ZONE_DMA
3182	bool
3183
3184config ZONE_DMA32
3185	bool
3186
3187endmenu
3188
3189config TRAD_SIGNALS
3190	bool
3191
3192config MIPS32_COMPAT
3193	bool
3194
3195config COMPAT
3196	bool
3197
3198config SYSVIPC_COMPAT
3199	bool
3200
3201config MIPS32_O32
3202	bool "Kernel support for o32 binaries"
3203	depends on 64BIT
3204	select ARCH_WANT_OLD_COMPAT_IPC
3205	select COMPAT
3206	select MIPS32_COMPAT
3207	select SYSVIPC_COMPAT if SYSVIPC
3208	help
3209	  Select this option if you want to run o32 binaries.  These are pure
3210	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3211	  existing binaries are in this format.
3212
3213	  If unsure, say Y.
3214
3215config MIPS32_N32
3216	bool "Kernel support for n32 binaries"
3217	depends on 64BIT
3218	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3219	select COMPAT
3220	select MIPS32_COMPAT
3221	select SYSVIPC_COMPAT if SYSVIPC
3222	help
3223	  Select this option if you want to run n32 binaries.  These are
3224	  64-bit binaries using 32-bit quantities for addressing and certain
3225	  data that would normally be 64-bit.  They are used in special
3226	  cases.
3227
3228	  If unsure, say N.
3229
3230config BINFMT_ELF32
3231	bool
3232	default y if MIPS32_O32 || MIPS32_N32
3233	select ELFCORE
3234
3235menu "Power management options"
3236
3237config ARCH_HIBERNATION_POSSIBLE
3238	def_bool y
3239	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3240
3241config ARCH_SUSPEND_POSSIBLE
3242	def_bool y
3243	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3244
3245source "kernel/power/Kconfig"
3246
3247endmenu
3248
3249config MIPS_EXTERNAL_TIMER
3250	bool
3251
3252menu "CPU Power Management"
3253
3254if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3255source "drivers/cpufreq/Kconfig"
3256endif
3257
3258source "drivers/cpuidle/Kconfig"
3259
3260endmenu
3261
3262source "drivers/firmware/Kconfig"
3263
3264source "arch/mips/kvm/Kconfig"
3265