xref: /linux/arch/mips/Kconfig (revision 86287543715ac2a6d92d561cc105d79306511457)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_32BIT_OFF_T if !64BIT
6	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7	select ARCH_HAS_FORTIFY_SOURCE
8	select ARCH_HAS_KCOV
9	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
10	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
11	select ARCH_HAS_UBSAN_SANITIZE_ALL
12	select ARCH_SUPPORTS_UPROBES
13	select ARCH_USE_BUILTIN_BSWAP
14	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
15	select ARCH_USE_QUEUED_RWLOCKS
16	select ARCH_USE_QUEUED_SPINLOCKS
17	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
18	select ARCH_WANT_IPC_PARSE_VERSION
19	select BUILDTIME_TABLE_SORT
20	select CLONE_BACKWARDS
21	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
22	select CPU_PM if CPU_IDLE
23	select GENERIC_ATOMIC64 if !64BIT
24	select GENERIC_CLOCKEVENTS
25	select GENERIC_CMOS_UPDATE
26	select GENERIC_CPU_AUTOPROBE
27	select GENERIC_GETTIMEOFDAY
28	select GENERIC_IOMAP
29	select GENERIC_IRQ_PROBE
30	select GENERIC_IRQ_SHOW
31	select GENERIC_ISA_DMA if EISA
32	select GENERIC_LIB_ASHLDI3
33	select GENERIC_LIB_ASHRDI3
34	select GENERIC_LIB_CMPDI2
35	select GENERIC_LIB_LSHRDI3
36	select GENERIC_LIB_UCMPDI2
37	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
38	select GENERIC_SMP_IDLE_THREAD
39	select GENERIC_TIME_VSYSCALL
40	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
41	select HANDLE_DOMAIN_IRQ
42	select HAVE_ARCH_COMPILER_H
43	select HAVE_ARCH_JUMP_LABEL
44	select HAVE_ARCH_KGDB
45	select HAVE_ARCH_MMAP_RND_BITS if MMU
46	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
47	select HAVE_ARCH_SECCOMP_FILTER
48	select HAVE_ARCH_TRACEHOOK
49	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
50	select HAVE_ASM_MODVERSIONS
51	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
52	select HAVE_CONTEXT_TRACKING
53	select HAVE_TIF_NOHZ
54	select HAVE_COPY_THREAD_TLS
55	select HAVE_C_RECORDMCOUNT
56	select HAVE_DEBUG_KMEMLEAK
57	select HAVE_DEBUG_STACKOVERFLOW
58	select HAVE_DMA_CONTIGUOUS
59	select HAVE_DYNAMIC_FTRACE
60	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
61	select HAVE_EXIT_THREAD
62	select HAVE_FAST_GUP
63	select HAVE_FTRACE_MCOUNT_RECORD
64	select HAVE_FUNCTION_GRAPH_TRACER
65	select HAVE_FUNCTION_TRACER
66	select HAVE_GCC_PLUGINS
67	select HAVE_GENERIC_VDSO
68	select HAVE_IDE
69	select HAVE_IOREMAP_PROT
70	select HAVE_IRQ_EXIT_ON_IRQ_STACK
71	select HAVE_IRQ_TIME_ACCOUNTING
72	select HAVE_KPROBES
73	select HAVE_KRETPROBES
74	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
75	select HAVE_MEMBLOCK_NODE_MAP
76	select HAVE_MOD_ARCH_SPECIFIC
77	select HAVE_NMI
78	select HAVE_OPROFILE
79	select HAVE_PERF_EVENTS
80	select HAVE_REGS_AND_STACK_ACCESS_API
81	select HAVE_RSEQ
82	select HAVE_SPARSE_SYSCALL_NR
83	select HAVE_STACKPROTECTOR
84	select HAVE_SYSCALL_TRACEPOINTS
85	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
86	select IRQ_FORCED_THREADING
87	select ISA if EISA
88	select MODULES_USE_ELF_REL if MODULES
89	select MODULES_USE_ELF_RELA if MODULES && 64BIT
90	select PERF_USE_VMALLOC
91	select RTC_LIB
92	select SYSCTL_EXCEPTION_TRACE
93	select VIRT_TO_BUS
94
95menu "Machine selection"
96
97choice
98	prompt "System type"
99	default MIPS_GENERIC
100
101config MIPS_GENERIC
102	bool "Generic board-agnostic MIPS kernel"
103	select BOOT_RAW
104	select BUILTIN_DTB
105	select CEVT_R4K
106	select CLKSRC_MIPS_GIC
107	select COMMON_CLK
108	select CPU_MIPSR2_IRQ_EI
109	select CPU_MIPSR2_IRQ_VI
110	select CSRC_R4K
111	select DMA_PERDEV_COHERENT
112	select HAVE_PCI
113	select IRQ_MIPS_CPU
114	select MIPS_AUTO_PFN_OFFSET
115	select MIPS_CPU_SCACHE
116	select MIPS_GIC
117	select MIPS_L1_CACHE_SHIFT_7
118	select NO_EXCEPT_FILL
119	select PCI_DRIVERS_GENERIC
120	select SMP_UP if SMP
121	select SWAP_IO_SPACE
122	select SYS_HAS_CPU_MIPS32_R1
123	select SYS_HAS_CPU_MIPS32_R2
124	select SYS_HAS_CPU_MIPS32_R6
125	select SYS_HAS_CPU_MIPS64_R1
126	select SYS_HAS_CPU_MIPS64_R2
127	select SYS_HAS_CPU_MIPS64_R6
128	select SYS_SUPPORTS_32BIT_KERNEL
129	select SYS_SUPPORTS_64BIT_KERNEL
130	select SYS_SUPPORTS_BIG_ENDIAN
131	select SYS_SUPPORTS_HIGHMEM
132	select SYS_SUPPORTS_LITTLE_ENDIAN
133	select SYS_SUPPORTS_MICROMIPS
134	select SYS_SUPPORTS_MIPS16
135	select SYS_SUPPORTS_MIPS_CPS
136	select SYS_SUPPORTS_MULTITHREADING
137	select SYS_SUPPORTS_RELOCATABLE
138	select SYS_SUPPORTS_SMARTMIPS
139	select UHI_BOOT
140	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
141	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
142	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
143	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
144	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
145	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
146	select USE_OF
147	help
148	  Select this to build a kernel which aims to support multiple boards,
149	  generally using a flattened device tree passed from the bootloader
150	  using the boot protocol defined in the UHI (Unified Hosting
151	  Interface) specification.
152
153config MIPS_ALCHEMY
154	bool "Alchemy processor based machines"
155	select PHYS_ADDR_T_64BIT
156	select CEVT_R4K
157	select CSRC_R4K
158	select IRQ_MIPS_CPU
159	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
160	select SYS_HAS_CPU_MIPS32_R1
161	select SYS_SUPPORTS_32BIT_KERNEL
162	select SYS_SUPPORTS_APM_EMULATION
163	select GPIOLIB
164	select SYS_SUPPORTS_ZBOOT
165	select COMMON_CLK
166
167config AR7
168	bool "Texas Instruments AR7"
169	select BOOT_ELF32
170	select DMA_NONCOHERENT
171	select CEVT_R4K
172	select CSRC_R4K
173	select IRQ_MIPS_CPU
174	select NO_EXCEPT_FILL
175	select SWAP_IO_SPACE
176	select SYS_HAS_CPU_MIPS32_R1
177	select SYS_HAS_EARLY_PRINTK
178	select SYS_SUPPORTS_32BIT_KERNEL
179	select SYS_SUPPORTS_LITTLE_ENDIAN
180	select SYS_SUPPORTS_MIPS16
181	select SYS_SUPPORTS_ZBOOT_UART16550
182	select GPIOLIB
183	select VLYNQ
184	select HAVE_CLK
185	help
186	  Support for the Texas Instruments AR7 System-on-a-Chip
187	  family: TNETD7100, 7200 and 7300.
188
189config ATH25
190	bool "Atheros AR231x/AR531x SoC support"
191	select CEVT_R4K
192	select CSRC_R4K
193	select DMA_NONCOHERENT
194	select IRQ_MIPS_CPU
195	select IRQ_DOMAIN
196	select SYS_HAS_CPU_MIPS32_R1
197	select SYS_SUPPORTS_BIG_ENDIAN
198	select SYS_SUPPORTS_32BIT_KERNEL
199	select SYS_HAS_EARLY_PRINTK
200	help
201	  Support for Atheros AR231x and Atheros AR531x based boards
202
203config ATH79
204	bool "Atheros AR71XX/AR724X/AR913X based boards"
205	select ARCH_HAS_RESET_CONTROLLER
206	select BOOT_RAW
207	select CEVT_R4K
208	select CSRC_R4K
209	select DMA_NONCOHERENT
210	select GPIOLIB
211	select PINCTRL
212	select HAVE_CLK
213	select COMMON_CLK
214	select CLKDEV_LOOKUP
215	select IRQ_MIPS_CPU
216	select SYS_HAS_CPU_MIPS32_R2
217	select SYS_HAS_EARLY_PRINTK
218	select SYS_SUPPORTS_32BIT_KERNEL
219	select SYS_SUPPORTS_BIG_ENDIAN
220	select SYS_SUPPORTS_MIPS16
221	select SYS_SUPPORTS_ZBOOT_UART_PROM
222	select USE_OF
223	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
224	help
225	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
226
227config BMIPS_GENERIC
228	bool "Broadcom Generic BMIPS kernel"
229	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
230	select ARCH_HAS_PHYS_TO_DMA
231	select BOOT_RAW
232	select NO_EXCEPT_FILL
233	select USE_OF
234	select CEVT_R4K
235	select CSRC_R4K
236	select SYNC_R4K
237	select COMMON_CLK
238	select BCM6345_L1_IRQ
239	select BCM7038_L1_IRQ
240	select BCM7120_L2_IRQ
241	select BRCMSTB_L2_IRQ
242	select IRQ_MIPS_CPU
243	select DMA_NONCOHERENT
244	select SYS_SUPPORTS_32BIT_KERNEL
245	select SYS_SUPPORTS_LITTLE_ENDIAN
246	select SYS_SUPPORTS_BIG_ENDIAN
247	select SYS_SUPPORTS_HIGHMEM
248	select SYS_HAS_CPU_BMIPS32_3300
249	select SYS_HAS_CPU_BMIPS4350
250	select SYS_HAS_CPU_BMIPS4380
251	select SYS_HAS_CPU_BMIPS5000
252	select SWAP_IO_SPACE
253	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
254	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
255	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
256	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
257	select HARDIRQS_SW_RESEND
258	help
259	  Build a generic DT-based kernel image that boots on select
260	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
261	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
262	  must be set appropriately for your board.
263
264config BCM47XX
265	bool "Broadcom BCM47XX based boards"
266	select BOOT_RAW
267	select CEVT_R4K
268	select CSRC_R4K
269	select DMA_NONCOHERENT
270	select HAVE_PCI
271	select IRQ_MIPS_CPU
272	select SYS_HAS_CPU_MIPS32_R1
273	select NO_EXCEPT_FILL
274	select SYS_SUPPORTS_32BIT_KERNEL
275	select SYS_SUPPORTS_LITTLE_ENDIAN
276	select SYS_SUPPORTS_MIPS16
277	select SYS_SUPPORTS_ZBOOT
278	select SYS_HAS_EARLY_PRINTK
279	select USE_GENERIC_EARLY_PRINTK_8250
280	select GPIOLIB
281	select LEDS_GPIO_REGISTER
282	select BCM47XX_NVRAM
283	select BCM47XX_SPROM
284	select BCM47XX_SSB if !BCM47XX_BCMA
285	help
286	  Support for BCM47XX based boards
287
288config BCM63XX
289	bool "Broadcom BCM63XX based boards"
290	select BOOT_RAW
291	select CEVT_R4K
292	select CSRC_R4K
293	select SYNC_R4K
294	select DMA_NONCOHERENT
295	select IRQ_MIPS_CPU
296	select SYS_SUPPORTS_32BIT_KERNEL
297	select SYS_SUPPORTS_BIG_ENDIAN
298	select SYS_HAS_EARLY_PRINTK
299	select SWAP_IO_SPACE
300	select GPIOLIB
301	select HAVE_CLK
302	select MIPS_L1_CACHE_SHIFT_4
303	select CLKDEV_LOOKUP
304	help
305	  Support for BCM63XX based boards
306
307config MIPS_COBALT
308	bool "Cobalt Server"
309	select CEVT_R4K
310	select CSRC_R4K
311	select CEVT_GT641XX
312	select DMA_NONCOHERENT
313	select FORCE_PCI
314	select I8253
315	select I8259
316	select IRQ_MIPS_CPU
317	select IRQ_GT641XX
318	select PCI_GT64XXX_PCI0
319	select SYS_HAS_CPU_NEVADA
320	select SYS_HAS_EARLY_PRINTK
321	select SYS_SUPPORTS_32BIT_KERNEL
322	select SYS_SUPPORTS_64BIT_KERNEL
323	select SYS_SUPPORTS_LITTLE_ENDIAN
324	select USE_GENERIC_EARLY_PRINTK_8250
325
326config MACH_DECSTATION
327	bool "DECstations"
328	select BOOT_ELF32
329	select CEVT_DS1287
330	select CEVT_R4K if CPU_R4X00
331	select CSRC_IOASIC
332	select CSRC_R4K if CPU_R4X00
333	select CPU_DADDI_WORKAROUNDS if 64BIT
334	select CPU_R4000_WORKAROUNDS if 64BIT
335	select CPU_R4400_WORKAROUNDS if 64BIT
336	select DMA_NONCOHERENT
337	select NO_IOPORT_MAP
338	select IRQ_MIPS_CPU
339	select SYS_HAS_CPU_R3000
340	select SYS_HAS_CPU_R4X00
341	select SYS_SUPPORTS_32BIT_KERNEL
342	select SYS_SUPPORTS_64BIT_KERNEL
343	select SYS_SUPPORTS_LITTLE_ENDIAN
344	select SYS_SUPPORTS_128HZ
345	select SYS_SUPPORTS_256HZ
346	select SYS_SUPPORTS_1024HZ
347	select MIPS_L1_CACHE_SHIFT_4
348	help
349	  This enables support for DEC's MIPS based workstations.  For details
350	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
351	  DECstation porting pages on <http://decstation.unix-ag.org/>.
352
353	  If you have one of the following DECstation Models you definitely
354	  want to choose R4xx0 for the CPU Type:
355
356		DECstation 5000/50
357		DECstation 5000/150
358		DECstation 5000/260
359		DECsystem 5900/260
360
361	  otherwise choose R3000.
362
363config MACH_JAZZ
364	bool "Jazz family of machines"
365	select ARC_MEMORY
366	select ARC_PROMLIB
367	select ARCH_MIGHT_HAVE_PC_PARPORT
368	select ARCH_MIGHT_HAVE_PC_SERIO
369	select FW_ARC
370	select FW_ARC32
371	select ARCH_MAY_HAVE_PC_FDC
372	select CEVT_R4K
373	select CSRC_R4K
374	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
375	select GENERIC_ISA_DMA
376	select HAVE_PCSPKR_PLATFORM
377	select IRQ_MIPS_CPU
378	select I8253
379	select I8259
380	select ISA
381	select SYS_HAS_CPU_R4X00
382	select SYS_SUPPORTS_32BIT_KERNEL
383	select SYS_SUPPORTS_64BIT_KERNEL
384	select SYS_SUPPORTS_100HZ
385	help
386	  This a family of machines based on the MIPS R4030 chipset which was
387	  used by several vendors to build RISC/os and Windows NT workstations.
388	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
389	  Olivetti M700-10 workstations.
390
391config MACH_INGENIC
392	bool "Ingenic SoC based machines"
393	select SYS_SUPPORTS_32BIT_KERNEL
394	select SYS_SUPPORTS_LITTLE_ENDIAN
395	select SYS_SUPPORTS_ZBOOT_UART16550
396	select CPU_SUPPORTS_HUGEPAGES
397	select DMA_NONCOHERENT
398	select IRQ_MIPS_CPU
399	select PINCTRL
400	select GPIOLIB
401	select COMMON_CLK
402	select GENERIC_IRQ_CHIP
403	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
404	select USE_OF
405
406config LANTIQ
407	bool "Lantiq based platforms"
408	select DMA_NONCOHERENT
409	select IRQ_MIPS_CPU
410	select CEVT_R4K
411	select CSRC_R4K
412	select SYS_HAS_CPU_MIPS32_R1
413	select SYS_HAS_CPU_MIPS32_R2
414	select SYS_SUPPORTS_BIG_ENDIAN
415	select SYS_SUPPORTS_32BIT_KERNEL
416	select SYS_SUPPORTS_MIPS16
417	select SYS_SUPPORTS_MULTITHREADING
418	select SYS_SUPPORTS_VPE_LOADER
419	select SYS_HAS_EARLY_PRINTK
420	select GPIOLIB
421	select SWAP_IO_SPACE
422	select BOOT_RAW
423	select CLKDEV_LOOKUP
424	select USE_OF
425	select PINCTRL
426	select PINCTRL_LANTIQ
427	select ARCH_HAS_RESET_CONTROLLER
428	select RESET_CONTROLLER
429
430config LASAT
431	bool "LASAT Networks platforms"
432	select CEVT_R4K
433	select CRC32
434	select CSRC_R4K
435	select DMA_NONCOHERENT
436	select SYS_HAS_EARLY_PRINTK
437	select HAVE_PCI
438	select IRQ_MIPS_CPU
439	select PCI_GT64XXX_PCI0
440	select MIPS_NILE4
441	select R5000_CPU_SCACHE
442	select SYS_HAS_CPU_R5000
443	select SYS_SUPPORTS_32BIT_KERNEL
444	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
445	select SYS_SUPPORTS_LITTLE_ENDIAN
446
447config MACH_LOONGSON32
448	bool "Loongson 32-bit family of machines"
449	select SYS_SUPPORTS_ZBOOT
450	help
451	  This enables support for the Loongson-1 family of machines.
452
453	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
454	  the Institute of Computing Technology (ICT), Chinese Academy of
455	  Sciences (CAS).
456
457config MACH_LOONGSON2EF
458	bool "Loongson-2E/F family of machines"
459	select SYS_SUPPORTS_ZBOOT
460	help
461	  This enables the support of early Loongson-2E/F family of machines.
462
463config MACH_LOONGSON64
464	bool "Loongson 64-bit family of machines"
465	select ARCH_SPARSEMEM_ENABLE
466	select ARCH_MIGHT_HAVE_PC_PARPORT
467	select ARCH_MIGHT_HAVE_PC_SERIO
468	select GENERIC_ISA_DMA_SUPPORT_BROKEN
469	select BOOT_ELF32
470	select BOARD_SCACHE
471	select CSRC_R4K
472	select CEVT_R4K
473	select CPU_HAS_WB
474	select FORCE_PCI
475	select ISA
476	select I8259
477	select IRQ_MIPS_CPU
478	select NR_CPUS_DEFAULT_4
479	select USE_GENERIC_EARLY_PRINTK_8250
480	select SYS_HAS_CPU_LOONGSON64
481	select SYS_HAS_EARLY_PRINTK
482	select SYS_SUPPORTS_SMP
483	select SYS_SUPPORTS_HOTPLUG_CPU
484	select SYS_SUPPORTS_NUMA
485	select SYS_SUPPORTS_64BIT_KERNEL
486	select SYS_SUPPORTS_HIGHMEM
487	select SYS_SUPPORTS_LITTLE_ENDIAN
488	select SYS_SUPPORTS_ZBOOT
489	select ZONE_DMA32
490	select NUMA
491	select COMMON_CLK
492	select USE_OF
493	select BUILTIN_DTB
494	help
495	  This enables the support of Loongson-2/3 family of machines.
496
497	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
498	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
499	  and Loongson-2F which will be removed), developed by the Institute
500	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
501
502config MACH_PISTACHIO
503	bool "IMG Pistachio SoC based boards"
504	select BOOT_ELF32
505	select BOOT_RAW
506	select CEVT_R4K
507	select CLKSRC_MIPS_GIC
508	select COMMON_CLK
509	select CSRC_R4K
510	select DMA_NONCOHERENT
511	select GPIOLIB
512	select IRQ_MIPS_CPU
513	select MFD_SYSCON
514	select MIPS_CPU_SCACHE
515	select MIPS_GIC
516	select PINCTRL
517	select REGULATOR
518	select SYS_HAS_CPU_MIPS32_R2
519	select SYS_SUPPORTS_32BIT_KERNEL
520	select SYS_SUPPORTS_LITTLE_ENDIAN
521	select SYS_SUPPORTS_MIPS_CPS
522	select SYS_SUPPORTS_MULTITHREADING
523	select SYS_SUPPORTS_RELOCATABLE
524	select SYS_SUPPORTS_ZBOOT
525	select SYS_HAS_EARLY_PRINTK
526	select USE_GENERIC_EARLY_PRINTK_8250
527	select USE_OF
528	help
529	  This enables support for the IMG Pistachio SoC platform.
530
531config MIPS_MALTA
532	bool "MIPS Malta board"
533	select ARCH_MAY_HAVE_PC_FDC
534	select ARCH_MIGHT_HAVE_PC_PARPORT
535	select ARCH_MIGHT_HAVE_PC_SERIO
536	select BOOT_ELF32
537	select BOOT_RAW
538	select BUILTIN_DTB
539	select CEVT_R4K
540	select CLKSRC_MIPS_GIC
541	select COMMON_CLK
542	select CSRC_R4K
543	select DMA_MAYBE_COHERENT
544	select GENERIC_ISA_DMA
545	select HAVE_PCSPKR_PLATFORM
546	select HAVE_PCI
547	select I8253
548	select I8259
549	select IRQ_MIPS_CPU
550	select MIPS_BONITO64
551	select MIPS_CPU_SCACHE
552	select MIPS_GIC
553	select MIPS_L1_CACHE_SHIFT_6
554	select MIPS_MSC
555	select PCI_GT64XXX_PCI0
556	select SMP_UP if SMP
557	select SWAP_IO_SPACE
558	select SYS_HAS_CPU_MIPS32_R1
559	select SYS_HAS_CPU_MIPS32_R2
560	select SYS_HAS_CPU_MIPS32_R3_5
561	select SYS_HAS_CPU_MIPS32_R5
562	select SYS_HAS_CPU_MIPS32_R6
563	select SYS_HAS_CPU_MIPS64_R1
564	select SYS_HAS_CPU_MIPS64_R2
565	select SYS_HAS_CPU_MIPS64_R6
566	select SYS_HAS_CPU_NEVADA
567	select SYS_HAS_CPU_RM7000
568	select SYS_SUPPORTS_32BIT_KERNEL
569	select SYS_SUPPORTS_64BIT_KERNEL
570	select SYS_SUPPORTS_BIG_ENDIAN
571	select SYS_SUPPORTS_HIGHMEM
572	select SYS_SUPPORTS_LITTLE_ENDIAN
573	select SYS_SUPPORTS_MICROMIPS
574	select SYS_SUPPORTS_MIPS16
575	select SYS_SUPPORTS_MIPS_CMP
576	select SYS_SUPPORTS_MIPS_CPS
577	select SYS_SUPPORTS_MULTITHREADING
578	select SYS_SUPPORTS_RELOCATABLE
579	select SYS_SUPPORTS_SMARTMIPS
580	select SYS_SUPPORTS_VPE_LOADER
581	select SYS_SUPPORTS_ZBOOT
582	select USE_OF
583	select ZONE_DMA32 if 64BIT
584	help
585	  This enables support for the MIPS Technologies Malta evaluation
586	  board.
587
588config MACH_PIC32
589	bool "Microchip PIC32 Family"
590	help
591	  This enables support for the Microchip PIC32 family of platforms.
592
593	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
594	  microcontrollers.
595
596config NEC_MARKEINS
597	bool "NEC EMMA2RH Mark-eins board"
598	select SOC_EMMA2RH
599	select HAVE_PCI
600	help
601	  This enables support for the NEC Electronics Mark-eins boards.
602
603config MACH_VR41XX
604	bool "NEC VR4100 series based machines"
605	select CEVT_R4K
606	select CSRC_R4K
607	select SYS_HAS_CPU_VR41XX
608	select SYS_SUPPORTS_MIPS16
609	select GPIOLIB
610
611config NXP_STB220
612	bool "NXP STB220 board"
613	select SOC_PNX833X
614	help
615	  Support for NXP Semiconductors STB220 Development Board.
616
617config NXP_STB225
618	bool "NXP 225 board"
619	select SOC_PNX833X
620	select SOC_PNX8335
621	help
622	  Support for NXP Semiconductors STB225 Development Board.
623
624config PMC_MSP
625	bool "PMC-Sierra MSP chipsets"
626	select CEVT_R4K
627	select CSRC_R4K
628	select DMA_NONCOHERENT
629	select SWAP_IO_SPACE
630	select NO_EXCEPT_FILL
631	select BOOT_RAW
632	select SYS_HAS_CPU_MIPS32_R1
633	select SYS_HAS_CPU_MIPS32_R2
634	select SYS_SUPPORTS_32BIT_KERNEL
635	select SYS_SUPPORTS_BIG_ENDIAN
636	select SYS_SUPPORTS_MIPS16
637	select IRQ_MIPS_CPU
638	select SERIAL_8250
639	select SERIAL_8250_CONSOLE
640	select USB_EHCI_BIG_ENDIAN_MMIO
641	select USB_EHCI_BIG_ENDIAN_DESC
642	help
643	  This adds support for the PMC-Sierra family of Multi-Service
644	  Processor System-On-A-Chips.  These parts include a number
645	  of integrated peripherals, interfaces and DSPs in addition to
646	  a variety of MIPS cores.
647
648config RALINK
649	bool "Ralink based machines"
650	select CEVT_R4K
651	select CSRC_R4K
652	select BOOT_RAW
653	select DMA_NONCOHERENT
654	select IRQ_MIPS_CPU
655	select USE_OF
656	select SYS_HAS_CPU_MIPS32_R1
657	select SYS_HAS_CPU_MIPS32_R2
658	select SYS_SUPPORTS_32BIT_KERNEL
659	select SYS_SUPPORTS_LITTLE_ENDIAN
660	select SYS_SUPPORTS_MIPS16
661	select SYS_HAS_EARLY_PRINTK
662	select CLKDEV_LOOKUP
663	select ARCH_HAS_RESET_CONTROLLER
664	select RESET_CONTROLLER
665
666config SGI_IP22
667	bool "SGI IP22 (Indy/Indigo2)"
668	select ARC_MEMORY
669	select ARC_PROMLIB
670	select FW_ARC
671	select FW_ARC32
672	select ARCH_MIGHT_HAVE_PC_SERIO
673	select BOOT_ELF32
674	select CEVT_R4K
675	select CSRC_R4K
676	select DEFAULT_SGI_PARTITION
677	select DMA_NONCOHERENT
678	select HAVE_EISA
679	select I8253
680	select I8259
681	select IP22_CPU_SCACHE
682	select IRQ_MIPS_CPU
683	select GENERIC_ISA_DMA_SUPPORT_BROKEN
684	select SGI_HAS_I8042
685	select SGI_HAS_INDYDOG
686	select SGI_HAS_HAL2
687	select SGI_HAS_SEEQ
688	select SGI_HAS_WD93
689	select SGI_HAS_ZILOG
690	select SWAP_IO_SPACE
691	select SYS_HAS_CPU_R4X00
692	select SYS_HAS_CPU_R5000
693	select SYS_HAS_EARLY_PRINTK
694	select SYS_SUPPORTS_32BIT_KERNEL
695	select SYS_SUPPORTS_64BIT_KERNEL
696	select SYS_SUPPORTS_BIG_ENDIAN
697	select MIPS_L1_CACHE_SHIFT_7
698	help
699	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
700	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
701	  that runs on these, say Y here.
702
703config SGI_IP27
704	bool "SGI IP27 (Origin200/2000)"
705	select ARCH_HAS_PHYS_TO_DMA
706	select ARCH_SPARSEMEM_ENABLE
707	select FW_ARC
708	select FW_ARC64
709	select ARC_CMDLINE_ONLY
710	select BOOT_ELF64
711	select DEFAULT_SGI_PARTITION
712	select SYS_HAS_EARLY_PRINTK
713	select HAVE_PCI
714	select IRQ_MIPS_CPU
715	select IRQ_DOMAIN_HIERARCHY
716	select NR_CPUS_DEFAULT_64
717	select PCI_DRIVERS_GENERIC
718	select PCI_XTALK_BRIDGE
719	select SYS_HAS_CPU_R10000
720	select SYS_SUPPORTS_64BIT_KERNEL
721	select SYS_SUPPORTS_BIG_ENDIAN
722	select SYS_SUPPORTS_NUMA
723	select SYS_SUPPORTS_SMP
724	select MIPS_L1_CACHE_SHIFT_7
725	help
726	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
727	  workstations.  To compile a Linux kernel that runs on these, say Y
728	  here.
729
730config SGI_IP28
731	bool "SGI IP28 (Indigo2 R10k)"
732	select ARC_MEMORY
733	select ARC_PROMLIB
734	select FW_ARC
735	select FW_ARC64
736	select ARCH_MIGHT_HAVE_PC_SERIO
737	select BOOT_ELF64
738	select CEVT_R4K
739	select CSRC_R4K
740	select DEFAULT_SGI_PARTITION
741	select DMA_NONCOHERENT
742	select GENERIC_ISA_DMA_SUPPORT_BROKEN
743	select IRQ_MIPS_CPU
744	select HAVE_EISA
745	select I8253
746	select I8259
747	select SGI_HAS_I8042
748	select SGI_HAS_INDYDOG
749	select SGI_HAS_HAL2
750	select SGI_HAS_SEEQ
751	select SGI_HAS_WD93
752	select SGI_HAS_ZILOG
753	select SWAP_IO_SPACE
754	select SYS_HAS_CPU_R10000
755	select SYS_HAS_EARLY_PRINTK
756	select SYS_SUPPORTS_64BIT_KERNEL
757	select SYS_SUPPORTS_BIG_ENDIAN
758	select MIPS_L1_CACHE_SHIFT_7
759	help
760	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
761	  kernel that runs on these, say Y here.
762
763config SGI_IP30
764	bool "SGI IP30 (Octane/Octane2)"
765	select ARCH_HAS_PHYS_TO_DMA
766	select FW_ARC
767	select FW_ARC64
768	select BOOT_ELF64
769	select CEVT_R4K
770	select CSRC_R4K
771	select SYNC_R4K if SMP
772	select ZONE_DMA32
773	select HAVE_PCI
774	select IRQ_MIPS_CPU
775	select IRQ_DOMAIN_HIERARCHY
776	select NR_CPUS_DEFAULT_2
777	select PCI_DRIVERS_GENERIC
778	select PCI_XTALK_BRIDGE
779	select SYS_HAS_EARLY_PRINTK
780	select SYS_HAS_CPU_R10000
781	select SYS_SUPPORTS_64BIT_KERNEL
782	select SYS_SUPPORTS_BIG_ENDIAN
783	select SYS_SUPPORTS_SMP
784	select MIPS_L1_CACHE_SHIFT_7
785	select ARC_MEMORY
786	help
787	  These are the SGI Octane and Octane2 graphics workstations.  To
788	  compile a Linux kernel that runs on these, say Y here.
789
790config SGI_IP32
791	bool "SGI IP32 (O2)"
792	select ARC_MEMORY
793	select ARC_PROMLIB
794	select ARCH_HAS_PHYS_TO_DMA
795	select FW_ARC
796	select FW_ARC32
797	select BOOT_ELF32
798	select CEVT_R4K
799	select CSRC_R4K
800	select DMA_NONCOHERENT
801	select HAVE_PCI
802	select IRQ_MIPS_CPU
803	select R5000_CPU_SCACHE
804	select RM7000_CPU_SCACHE
805	select SYS_HAS_CPU_R5000
806	select SYS_HAS_CPU_R10000 if BROKEN
807	select SYS_HAS_CPU_RM7000
808	select SYS_HAS_CPU_NEVADA
809	select SYS_SUPPORTS_64BIT_KERNEL
810	select SYS_SUPPORTS_BIG_ENDIAN
811	help
812	  If you want this kernel to run on SGI O2 workstation, say Y here.
813
814config SIBYTE_CRHINE
815	bool "Sibyte BCM91120C-CRhine"
816	select BOOT_ELF32
817	select SIBYTE_BCM1120
818	select SWAP_IO_SPACE
819	select SYS_HAS_CPU_SB1
820	select SYS_SUPPORTS_BIG_ENDIAN
821	select SYS_SUPPORTS_LITTLE_ENDIAN
822
823config SIBYTE_CARMEL
824	bool "Sibyte BCM91120x-Carmel"
825	select BOOT_ELF32
826	select SIBYTE_BCM1120
827	select SWAP_IO_SPACE
828	select SYS_HAS_CPU_SB1
829	select SYS_SUPPORTS_BIG_ENDIAN
830	select SYS_SUPPORTS_LITTLE_ENDIAN
831
832config SIBYTE_CRHONE
833	bool "Sibyte BCM91125C-CRhone"
834	select BOOT_ELF32
835	select SIBYTE_BCM1125
836	select SWAP_IO_SPACE
837	select SYS_HAS_CPU_SB1
838	select SYS_SUPPORTS_BIG_ENDIAN
839	select SYS_SUPPORTS_HIGHMEM
840	select SYS_SUPPORTS_LITTLE_ENDIAN
841
842config SIBYTE_RHONE
843	bool "Sibyte BCM91125E-Rhone"
844	select BOOT_ELF32
845	select SIBYTE_BCM1125H
846	select SWAP_IO_SPACE
847	select SYS_HAS_CPU_SB1
848	select SYS_SUPPORTS_BIG_ENDIAN
849	select SYS_SUPPORTS_LITTLE_ENDIAN
850
851config SIBYTE_SWARM
852	bool "Sibyte BCM91250A-SWARM"
853	select BOOT_ELF32
854	select HAVE_PATA_PLATFORM
855	select SIBYTE_SB1250
856	select SWAP_IO_SPACE
857	select SYS_HAS_CPU_SB1
858	select SYS_SUPPORTS_BIG_ENDIAN
859	select SYS_SUPPORTS_HIGHMEM
860	select SYS_SUPPORTS_LITTLE_ENDIAN
861	select ZONE_DMA32 if 64BIT
862	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
863
864config SIBYTE_LITTLESUR
865	bool "Sibyte BCM91250C2-LittleSur"
866	select BOOT_ELF32
867	select HAVE_PATA_PLATFORM
868	select SIBYTE_SB1250
869	select SWAP_IO_SPACE
870	select SYS_HAS_CPU_SB1
871	select SYS_SUPPORTS_BIG_ENDIAN
872	select SYS_SUPPORTS_HIGHMEM
873	select SYS_SUPPORTS_LITTLE_ENDIAN
874	select ZONE_DMA32 if 64BIT
875
876config SIBYTE_SENTOSA
877	bool "Sibyte BCM91250E-Sentosa"
878	select BOOT_ELF32
879	select SIBYTE_SB1250
880	select SWAP_IO_SPACE
881	select SYS_HAS_CPU_SB1
882	select SYS_SUPPORTS_BIG_ENDIAN
883	select SYS_SUPPORTS_LITTLE_ENDIAN
884	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
885
886config SIBYTE_BIGSUR
887	bool "Sibyte BCM91480B-BigSur"
888	select BOOT_ELF32
889	select NR_CPUS_DEFAULT_4
890	select SIBYTE_BCM1x80
891	select SWAP_IO_SPACE
892	select SYS_HAS_CPU_SB1
893	select SYS_SUPPORTS_BIG_ENDIAN
894	select SYS_SUPPORTS_HIGHMEM
895	select SYS_SUPPORTS_LITTLE_ENDIAN
896	select ZONE_DMA32 if 64BIT
897	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
898
899config SNI_RM
900	bool "SNI RM200/300/400"
901	select ARC_MEMORY
902	select ARC_PROMLIB
903	select FW_ARC if CPU_LITTLE_ENDIAN
904	select FW_ARC32 if CPU_LITTLE_ENDIAN
905	select FW_SNIPROM if CPU_BIG_ENDIAN
906	select ARCH_MAY_HAVE_PC_FDC
907	select ARCH_MIGHT_HAVE_PC_PARPORT
908	select ARCH_MIGHT_HAVE_PC_SERIO
909	select BOOT_ELF32
910	select CEVT_R4K
911	select CSRC_R4K
912	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
913	select DMA_NONCOHERENT
914	select GENERIC_ISA_DMA
915	select HAVE_EISA
916	select HAVE_PCSPKR_PLATFORM
917	select HAVE_PCI
918	select IRQ_MIPS_CPU
919	select I8253
920	select I8259
921	select ISA
922	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
923	select SYS_HAS_CPU_R4X00
924	select SYS_HAS_CPU_R5000
925	select SYS_HAS_CPU_R10000
926	select R5000_CPU_SCACHE
927	select SYS_HAS_EARLY_PRINTK
928	select SYS_SUPPORTS_32BIT_KERNEL
929	select SYS_SUPPORTS_64BIT_KERNEL
930	select SYS_SUPPORTS_BIG_ENDIAN
931	select SYS_SUPPORTS_HIGHMEM
932	select SYS_SUPPORTS_LITTLE_ENDIAN
933	help
934	  The SNI RM200/300/400 are MIPS-based machines manufactured by
935	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
936	  Technology and now in turn merged with Fujitsu.  Say Y here to
937	  support this machine type.
938
939config MACH_TX39XX
940	bool "Toshiba TX39 series based machines"
941
942config MACH_TX49XX
943	bool "Toshiba TX49 series based machines"
944
945config MIKROTIK_RB532
946	bool "Mikrotik RB532 boards"
947	select CEVT_R4K
948	select CSRC_R4K
949	select DMA_NONCOHERENT
950	select HAVE_PCI
951	select IRQ_MIPS_CPU
952	select SYS_HAS_CPU_MIPS32_R1
953	select SYS_SUPPORTS_32BIT_KERNEL
954	select SYS_SUPPORTS_LITTLE_ENDIAN
955	select SWAP_IO_SPACE
956	select BOOT_RAW
957	select GPIOLIB
958	select MIPS_L1_CACHE_SHIFT_4
959	help
960	  Support the Mikrotik(tm) RouterBoard 532 series,
961	  based on the IDT RC32434 SoC.
962
963config CAVIUM_OCTEON_SOC
964	bool "Cavium Networks Octeon SoC based boards"
965	select CEVT_R4K
966	select ARCH_HAS_PHYS_TO_DMA
967	select HAVE_RAPIDIO
968	select PHYS_ADDR_T_64BIT
969	select SYS_SUPPORTS_64BIT_KERNEL
970	select SYS_SUPPORTS_BIG_ENDIAN
971	select EDAC_SUPPORT
972	select EDAC_ATOMIC_SCRUB
973	select SYS_SUPPORTS_LITTLE_ENDIAN
974	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
975	select SYS_HAS_EARLY_PRINTK
976	select SYS_HAS_CPU_CAVIUM_OCTEON
977	select HAVE_PCI
978	select HAVE_PLAT_DELAY
979	select HAVE_PLAT_FW_INIT_CMDLINE
980	select HAVE_PLAT_MEMCPY
981	select ZONE_DMA32
982	select HOLES_IN_ZONE
983	select GPIOLIB
984	select USE_OF
985	select ARCH_SPARSEMEM_ENABLE
986	select SYS_SUPPORTS_SMP
987	select NR_CPUS_DEFAULT_64
988	select MIPS_NR_CPU_NR_MAP_1024
989	select BUILTIN_DTB
990	select MTD_COMPLEX_MAPPINGS
991	select SWIOTLB
992	select SYS_SUPPORTS_RELOCATABLE
993	help
994	  This option supports all of the Octeon reference boards from Cavium
995	  Networks. It builds a kernel that dynamically determines the Octeon
996	  CPU type and supports all known board reference implementations.
997	  Some of the supported boards are:
998		EBT3000
999		EBH3000
1000		EBH3100
1001		Thunder
1002		Kodama
1003		Hikari
1004	  Say Y here for most Octeon reference boards.
1005
1006config NLM_XLR_BOARD
1007	bool "Netlogic XLR/XLS based systems"
1008	select BOOT_ELF32
1009	select NLM_COMMON
1010	select SYS_HAS_CPU_XLR
1011	select SYS_SUPPORTS_SMP
1012	select HAVE_PCI
1013	select SWAP_IO_SPACE
1014	select SYS_SUPPORTS_32BIT_KERNEL
1015	select SYS_SUPPORTS_64BIT_KERNEL
1016	select PHYS_ADDR_T_64BIT
1017	select SYS_SUPPORTS_BIG_ENDIAN
1018	select SYS_SUPPORTS_HIGHMEM
1019	select NR_CPUS_DEFAULT_32
1020	select CEVT_R4K
1021	select CSRC_R4K
1022	select IRQ_MIPS_CPU
1023	select ZONE_DMA32 if 64BIT
1024	select SYNC_R4K
1025	select SYS_HAS_EARLY_PRINTK
1026	select SYS_SUPPORTS_ZBOOT
1027	select SYS_SUPPORTS_ZBOOT_UART16550
1028	help
1029	  Support for systems based on Netlogic XLR and XLS processors.
1030	  Say Y here if you have a XLR or XLS based board.
1031
1032config NLM_XLP_BOARD
1033	bool "Netlogic XLP based systems"
1034	select BOOT_ELF32
1035	select NLM_COMMON
1036	select SYS_HAS_CPU_XLP
1037	select SYS_SUPPORTS_SMP
1038	select HAVE_PCI
1039	select SYS_SUPPORTS_32BIT_KERNEL
1040	select SYS_SUPPORTS_64BIT_KERNEL
1041	select PHYS_ADDR_T_64BIT
1042	select GPIOLIB
1043	select SYS_SUPPORTS_BIG_ENDIAN
1044	select SYS_SUPPORTS_LITTLE_ENDIAN
1045	select SYS_SUPPORTS_HIGHMEM
1046	select NR_CPUS_DEFAULT_32
1047	select CEVT_R4K
1048	select CSRC_R4K
1049	select IRQ_MIPS_CPU
1050	select ZONE_DMA32 if 64BIT
1051	select SYNC_R4K
1052	select SYS_HAS_EARLY_PRINTK
1053	select USE_OF
1054	select SYS_SUPPORTS_ZBOOT
1055	select SYS_SUPPORTS_ZBOOT_UART16550
1056	help
1057	  This board is based on Netlogic XLP Processor.
1058	  Say Y here if you have a XLP based board.
1059
1060config MIPS_PARAVIRT
1061	bool "Para-Virtualized guest system"
1062	select CEVT_R4K
1063	select CSRC_R4K
1064	select SYS_SUPPORTS_64BIT_KERNEL
1065	select SYS_SUPPORTS_32BIT_KERNEL
1066	select SYS_SUPPORTS_BIG_ENDIAN
1067	select SYS_SUPPORTS_SMP
1068	select NR_CPUS_DEFAULT_4
1069	select SYS_HAS_EARLY_PRINTK
1070	select SYS_HAS_CPU_MIPS32_R2
1071	select SYS_HAS_CPU_MIPS64_R2
1072	select SYS_HAS_CPU_CAVIUM_OCTEON
1073	select HAVE_PCI
1074	select SWAP_IO_SPACE
1075	help
1076	  This option supports guest running under ????
1077
1078endchoice
1079
1080source "arch/mips/alchemy/Kconfig"
1081source "arch/mips/ath25/Kconfig"
1082source "arch/mips/ath79/Kconfig"
1083source "arch/mips/bcm47xx/Kconfig"
1084source "arch/mips/bcm63xx/Kconfig"
1085source "arch/mips/bmips/Kconfig"
1086source "arch/mips/generic/Kconfig"
1087source "arch/mips/jazz/Kconfig"
1088source "arch/mips/jz4740/Kconfig"
1089source "arch/mips/lantiq/Kconfig"
1090source "arch/mips/lasat/Kconfig"
1091source "arch/mips/pic32/Kconfig"
1092source "arch/mips/pistachio/Kconfig"
1093source "arch/mips/pmcs-msp71xx/Kconfig"
1094source "arch/mips/ralink/Kconfig"
1095source "arch/mips/sgi-ip27/Kconfig"
1096source "arch/mips/sibyte/Kconfig"
1097source "arch/mips/txx9/Kconfig"
1098source "arch/mips/vr41xx/Kconfig"
1099source "arch/mips/cavium-octeon/Kconfig"
1100source "arch/mips/loongson2ef/Kconfig"
1101source "arch/mips/loongson32/Kconfig"
1102source "arch/mips/loongson64/Kconfig"
1103source "arch/mips/netlogic/Kconfig"
1104source "arch/mips/paravirt/Kconfig"
1105
1106endmenu
1107
1108config GENERIC_HWEIGHT
1109	bool
1110	default y
1111
1112config GENERIC_CALIBRATE_DELAY
1113	bool
1114	default y
1115
1116config SCHED_OMIT_FRAME_POINTER
1117	bool
1118	default y
1119
1120#
1121# Select some configuration options automatically based on user selections.
1122#
1123config FW_ARC
1124	bool
1125
1126config ARCH_MAY_HAVE_PC_FDC
1127	bool
1128
1129config BOOT_RAW
1130	bool
1131
1132config CEVT_BCM1480
1133	bool
1134
1135config CEVT_DS1287
1136	bool
1137
1138config CEVT_GT641XX
1139	bool
1140
1141config CEVT_R4K
1142	bool
1143
1144config CEVT_SB1250
1145	bool
1146
1147config CEVT_TXX9
1148	bool
1149
1150config CSRC_BCM1480
1151	bool
1152
1153config CSRC_IOASIC
1154	bool
1155
1156config CSRC_R4K
1157	bool
1158
1159config CSRC_SB1250
1160	bool
1161
1162config MIPS_CLOCK_VSYSCALL
1163	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1164
1165config GPIO_TXX9
1166	select GPIOLIB
1167	bool
1168
1169config FW_CFE
1170	bool
1171
1172config ARCH_SUPPORTS_UPROBES
1173	bool
1174
1175config DMA_MAYBE_COHERENT
1176	select ARCH_HAS_DMA_COHERENCE_H
1177	select DMA_NONCOHERENT
1178	bool
1179
1180config DMA_PERDEV_COHERENT
1181	bool
1182	select ARCH_HAS_SETUP_DMA_OPS
1183	select DMA_NONCOHERENT
1184
1185config DMA_NONCOHERENT
1186	bool
1187	#
1188	# MIPS allows mixing "slightly different" Cacheability and Coherency
1189	# Attribute bits.  It is believed that the uncached access through
1190	# KSEG1 and the implementation specific "uncached accelerated" used
1191	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1192	# significant advantages.
1193	#
1194	select ARCH_HAS_DMA_WRITE_COMBINE
1195	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1196	select ARCH_HAS_UNCACHED_SEGMENT
1197	select DMA_NONCOHERENT_MMAP
1198	select DMA_NONCOHERENT_CACHE_SYNC
1199	select NEED_DMA_MAP_STATE
1200
1201config SYS_HAS_EARLY_PRINTK
1202	bool
1203
1204config SYS_SUPPORTS_HOTPLUG_CPU
1205	bool
1206
1207config MIPS_BONITO64
1208	bool
1209
1210config MIPS_MSC
1211	bool
1212
1213config MIPS_NILE4
1214	bool
1215
1216config SYNC_R4K
1217	bool
1218
1219config MIPS_MACHINE
1220	def_bool n
1221
1222config NO_IOPORT_MAP
1223	def_bool n
1224
1225config GENERIC_CSUM
1226	def_bool CPU_NO_LOAD_STORE_LR
1227
1228config GENERIC_ISA_DMA
1229	bool
1230	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1231	select ISA_DMA_API
1232
1233config GENERIC_ISA_DMA_SUPPORT_BROKEN
1234	bool
1235	select GENERIC_ISA_DMA
1236
1237config HAVE_PLAT_DELAY
1238	bool
1239
1240config HAVE_PLAT_FW_INIT_CMDLINE
1241	bool
1242
1243config HAVE_PLAT_MEMCPY
1244	bool
1245
1246config ISA_DMA_API
1247	bool
1248
1249config HOLES_IN_ZONE
1250	bool
1251
1252config SYS_SUPPORTS_RELOCATABLE
1253	bool
1254	help
1255	  Selected if the platform supports relocating the kernel.
1256	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1257	  to allow access to command line and entropy sources.
1258
1259config MIPS_CBPF_JIT
1260	def_bool y
1261	depends on BPF_JIT && HAVE_CBPF_JIT
1262
1263config MIPS_EBPF_JIT
1264	def_bool y
1265	depends on BPF_JIT && HAVE_EBPF_JIT
1266
1267
1268#
1269# Endianness selection.  Sufficiently obscure so many users don't know what to
1270# answer,so we try hard to limit the available choices.  Also the use of a
1271# choice statement should be more obvious to the user.
1272#
1273choice
1274	prompt "Endianness selection"
1275	help
1276	  Some MIPS machines can be configured for either little or big endian
1277	  byte order. These modes require different kernels and a different
1278	  Linux distribution.  In general there is one preferred byteorder for a
1279	  particular system but some systems are just as commonly used in the
1280	  one or the other endianness.
1281
1282config CPU_BIG_ENDIAN
1283	bool "Big endian"
1284	depends on SYS_SUPPORTS_BIG_ENDIAN
1285
1286config CPU_LITTLE_ENDIAN
1287	bool "Little endian"
1288	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1289
1290endchoice
1291
1292config EXPORT_UASM
1293	bool
1294
1295config SYS_SUPPORTS_APM_EMULATION
1296	bool
1297
1298config SYS_SUPPORTS_BIG_ENDIAN
1299	bool
1300
1301config SYS_SUPPORTS_LITTLE_ENDIAN
1302	bool
1303
1304config SYS_SUPPORTS_HUGETLBFS
1305	bool
1306	depends on CPU_SUPPORTS_HUGEPAGES
1307	default y
1308
1309config MIPS_HUGE_TLB_SUPPORT
1310	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1311
1312config IRQ_CPU_RM7K
1313	bool
1314
1315config IRQ_MSP_SLP
1316	bool
1317
1318config IRQ_MSP_CIC
1319	bool
1320
1321config IRQ_TXX9
1322	bool
1323
1324config IRQ_GT641XX
1325	bool
1326
1327config PCI_GT64XXX_PCI0
1328	bool
1329
1330config PCI_XTALK_BRIDGE
1331	bool
1332
1333config NO_EXCEPT_FILL
1334	bool
1335
1336config SOC_EMMA2RH
1337	bool
1338	select CEVT_R4K
1339	select CSRC_R4K
1340	select DMA_NONCOHERENT
1341	select IRQ_MIPS_CPU
1342	select SWAP_IO_SPACE
1343	select SYS_HAS_CPU_R5500
1344	select SYS_SUPPORTS_32BIT_KERNEL
1345	select SYS_SUPPORTS_64BIT_KERNEL
1346	select SYS_SUPPORTS_BIG_ENDIAN
1347
1348config SOC_PNX833X
1349	bool
1350	select CEVT_R4K
1351	select CSRC_R4K
1352	select IRQ_MIPS_CPU
1353	select DMA_NONCOHERENT
1354	select SYS_HAS_CPU_MIPS32_R2
1355	select SYS_SUPPORTS_32BIT_KERNEL
1356	select SYS_SUPPORTS_LITTLE_ENDIAN
1357	select SYS_SUPPORTS_BIG_ENDIAN
1358	select SYS_SUPPORTS_MIPS16
1359	select CPU_MIPSR2_IRQ_VI
1360
1361config SOC_PNX8335
1362	bool
1363	select SOC_PNX833X
1364
1365config MIPS_SPRAM
1366	bool
1367
1368config SWAP_IO_SPACE
1369	bool
1370
1371config SGI_HAS_INDYDOG
1372	bool
1373
1374config SGI_HAS_HAL2
1375	bool
1376
1377config SGI_HAS_SEEQ
1378	bool
1379
1380config SGI_HAS_WD93
1381	bool
1382
1383config SGI_HAS_ZILOG
1384	bool
1385
1386config SGI_HAS_I8042
1387	bool
1388
1389config DEFAULT_SGI_PARTITION
1390	bool
1391
1392config FW_ARC32
1393	bool
1394
1395config FW_SNIPROM
1396	bool
1397
1398config BOOT_ELF32
1399	bool
1400
1401config MIPS_L1_CACHE_SHIFT_4
1402	bool
1403
1404config MIPS_L1_CACHE_SHIFT_5
1405	bool
1406
1407config MIPS_L1_CACHE_SHIFT_6
1408	bool
1409
1410config MIPS_L1_CACHE_SHIFT_7
1411	bool
1412
1413config MIPS_L1_CACHE_SHIFT
1414	int
1415	default "7" if MIPS_L1_CACHE_SHIFT_7
1416	default "6" if MIPS_L1_CACHE_SHIFT_6
1417	default "5" if MIPS_L1_CACHE_SHIFT_5
1418	default "4" if MIPS_L1_CACHE_SHIFT_4
1419	default "5"
1420
1421config HAVE_STD_PC_SERIAL_PORT
1422	bool
1423
1424config ARC_CMDLINE_ONLY
1425	bool
1426
1427config ARC_CONSOLE
1428	bool "ARC console support"
1429	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1430
1431config ARC_MEMORY
1432	bool
1433
1434config ARC_PROMLIB
1435	bool
1436
1437config FW_ARC64
1438	bool
1439
1440config BOOT_ELF64
1441	bool
1442
1443menu "CPU selection"
1444
1445choice
1446	prompt "CPU type"
1447	default CPU_R4X00
1448
1449config CPU_LOONGSON64
1450	bool "Loongson 64-bit CPU"
1451	depends on SYS_HAS_CPU_LOONGSON64
1452	select ARCH_HAS_PHYS_TO_DMA
1453	select CPU_MIPSR2
1454	select CPU_HAS_PREFETCH
1455	select CPU_SUPPORTS_64BIT_KERNEL
1456	select CPU_SUPPORTS_HIGHMEM
1457	select CPU_SUPPORTS_HUGEPAGES
1458	select CPU_SUPPORTS_MSA
1459	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1460	select CPU_MIPSR2_IRQ_VI
1461	select WEAK_ORDERING
1462	select WEAK_REORDERING_BEYOND_LLSC
1463	select MIPS_ASID_BITS_VARIABLE
1464	select MIPS_PGD_C0_CONTEXT
1465	select MIPS_L1_CACHE_SHIFT_6
1466	select GPIOLIB
1467	select SWIOTLB
1468	help
1469		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1470		cores implements the MIPS64R2 instruction set with many extensions,
1471		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1472		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1473		Loongson-2E/2F is not covered here and will be removed in future.
1474
1475config LOONGSON3_ENHANCEMENT
1476	bool "New Loongson-3 CPU Enhancements"
1477	default n
1478	depends on CPU_LOONGSON64
1479	help
1480	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1481	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1482	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1483	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1484	  Fast TLB refill support, etc.
1485
1486	  This option enable those enhancements which are not probed at run
1487	  time. If you want a generic kernel to run on all Loongson 3 machines,
1488	  please say 'N' here. If you want a high-performance kernel to run on
1489	  new Loongson-3 machines only, please say 'Y' here.
1490
1491config CPU_LOONGSON3_WORKAROUNDS
1492	bool "Old Loongson-3 LLSC Workarounds"
1493	default y if SMP
1494	depends on CPU_LOONGSON64
1495	help
1496	  Loongson-3 processors have the llsc issues which require workarounds.
1497	  Without workarounds the system may hang unexpectedly.
1498
1499	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1500	  The workarounds have no significant side effect on them but may
1501	  decrease the performance of the system so this option should be
1502	  disabled unless the kernel is intended to be run on old systems.
1503
1504	  If unsure, please say Y.
1505
1506config CPU_LOONGSON2E
1507	bool "Loongson 2E"
1508	depends on SYS_HAS_CPU_LOONGSON2E
1509	select CPU_LOONGSON2EF
1510	help
1511	  The Loongson 2E processor implements the MIPS III instruction set
1512	  with many extensions.
1513
1514	  It has an internal FPGA northbridge, which is compatible to
1515	  bonito64.
1516
1517config CPU_LOONGSON2F
1518	bool "Loongson 2F"
1519	depends on SYS_HAS_CPU_LOONGSON2F
1520	select CPU_LOONGSON2EF
1521	select GPIOLIB
1522	help
1523	  The Loongson 2F processor implements the MIPS III instruction set
1524	  with many extensions.
1525
1526	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1527	  have a similar programming interface with FPGA northbridge used in
1528	  Loongson2E.
1529
1530config CPU_LOONGSON1B
1531	bool "Loongson 1B"
1532	depends on SYS_HAS_CPU_LOONGSON1B
1533	select CPU_LOONGSON32
1534	select LEDS_GPIO_REGISTER
1535	help
1536	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1537	  Release 1 instruction set and part of the MIPS32 Release 2
1538	  instruction set.
1539
1540config CPU_LOONGSON1C
1541	bool "Loongson 1C"
1542	depends on SYS_HAS_CPU_LOONGSON1C
1543	select CPU_LOONGSON32
1544	select LEDS_GPIO_REGISTER
1545	help
1546	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1547	  Release 1 instruction set and part of the MIPS32 Release 2
1548	  instruction set.
1549
1550config CPU_MIPS32_R1
1551	bool "MIPS32 Release 1"
1552	depends on SYS_HAS_CPU_MIPS32_R1
1553	select CPU_HAS_PREFETCH
1554	select CPU_SUPPORTS_32BIT_KERNEL
1555	select CPU_SUPPORTS_HIGHMEM
1556	help
1557	  Choose this option to build a kernel for release 1 or later of the
1558	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1559	  MIPS processor are based on a MIPS32 processor.  If you know the
1560	  specific type of processor in your system, choose those that one
1561	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1562	  Release 2 of the MIPS32 architecture is available since several
1563	  years so chances are you even have a MIPS32 Release 2 processor
1564	  in which case you should choose CPU_MIPS32_R2 instead for better
1565	  performance.
1566
1567config CPU_MIPS32_R2
1568	bool "MIPS32 Release 2"
1569	depends on SYS_HAS_CPU_MIPS32_R2
1570	select CPU_HAS_PREFETCH
1571	select CPU_SUPPORTS_32BIT_KERNEL
1572	select CPU_SUPPORTS_HIGHMEM
1573	select CPU_SUPPORTS_MSA
1574	select HAVE_KVM
1575	help
1576	  Choose this option to build a kernel for release 2 or later of the
1577	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1578	  MIPS processor are based on a MIPS32 processor.  If you know the
1579	  specific type of processor in your system, choose those that one
1580	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1581
1582config CPU_MIPS32_R6
1583	bool "MIPS32 Release 6"
1584	depends on SYS_HAS_CPU_MIPS32_R6
1585	select CPU_HAS_PREFETCH
1586	select CPU_NO_LOAD_STORE_LR
1587	select CPU_SUPPORTS_32BIT_KERNEL
1588	select CPU_SUPPORTS_HIGHMEM
1589	select CPU_SUPPORTS_MSA
1590	select HAVE_KVM
1591	select MIPS_O32_FP64_SUPPORT
1592	help
1593	  Choose this option to build a kernel for release 6 or later of the
1594	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1595	  family, are based on a MIPS32r6 processor. If you own an older
1596	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1597
1598config CPU_MIPS64_R1
1599	bool "MIPS64 Release 1"
1600	depends on SYS_HAS_CPU_MIPS64_R1
1601	select CPU_HAS_PREFETCH
1602	select CPU_SUPPORTS_32BIT_KERNEL
1603	select CPU_SUPPORTS_64BIT_KERNEL
1604	select CPU_SUPPORTS_HIGHMEM
1605	select CPU_SUPPORTS_HUGEPAGES
1606	help
1607	  Choose this option to build a kernel for release 1 or later of the
1608	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1609	  MIPS processor are based on a MIPS64 processor.  If you know the
1610	  specific type of processor in your system, choose those that one
1611	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1612	  Release 2 of the MIPS64 architecture is available since several
1613	  years so chances are you even have a MIPS64 Release 2 processor
1614	  in which case you should choose CPU_MIPS64_R2 instead for better
1615	  performance.
1616
1617config CPU_MIPS64_R2
1618	bool "MIPS64 Release 2"
1619	depends on SYS_HAS_CPU_MIPS64_R2
1620	select CPU_HAS_PREFETCH
1621	select CPU_SUPPORTS_32BIT_KERNEL
1622	select CPU_SUPPORTS_64BIT_KERNEL
1623	select CPU_SUPPORTS_HIGHMEM
1624	select CPU_SUPPORTS_HUGEPAGES
1625	select CPU_SUPPORTS_MSA
1626	select HAVE_KVM
1627	help
1628	  Choose this option to build a kernel for release 2 or later of the
1629	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1630	  MIPS processor are based on a MIPS64 processor.  If you know the
1631	  specific type of processor in your system, choose those that one
1632	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1633
1634config CPU_MIPS64_R6
1635	bool "MIPS64 Release 6"
1636	depends on SYS_HAS_CPU_MIPS64_R6
1637	select CPU_HAS_PREFETCH
1638	select CPU_NO_LOAD_STORE_LR
1639	select CPU_SUPPORTS_32BIT_KERNEL
1640	select CPU_SUPPORTS_64BIT_KERNEL
1641	select CPU_SUPPORTS_HIGHMEM
1642	select CPU_SUPPORTS_HUGEPAGES
1643	select CPU_SUPPORTS_MSA
1644	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1645	select HAVE_KVM
1646	help
1647	  Choose this option to build a kernel for release 6 or later of the
1648	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1649	  family, are based on a MIPS64r6 processor. If you own an older
1650	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1651
1652config CPU_R3000
1653	bool "R3000"
1654	depends on SYS_HAS_CPU_R3000
1655	select CPU_HAS_WB
1656	select CPU_R3K_TLB
1657	select CPU_SUPPORTS_32BIT_KERNEL
1658	select CPU_SUPPORTS_HIGHMEM
1659	help
1660	  Please make sure to pick the right CPU type. Linux/MIPS is not
1661	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1662	  *not* work on R4000 machines and vice versa.  However, since most
1663	  of the supported machines have an R4000 (or similar) CPU, R4x00
1664	  might be a safe bet.  If the resulting kernel does not work,
1665	  try to recompile with R3000.
1666
1667config CPU_TX39XX
1668	bool "R39XX"
1669	depends on SYS_HAS_CPU_TX39XX
1670	select CPU_SUPPORTS_32BIT_KERNEL
1671	select CPU_R3K_TLB
1672
1673config CPU_VR41XX
1674	bool "R41xx"
1675	depends on SYS_HAS_CPU_VR41XX
1676	select CPU_SUPPORTS_32BIT_KERNEL
1677	select CPU_SUPPORTS_64BIT_KERNEL
1678	help
1679	  The options selects support for the NEC VR4100 series of processors.
1680	  Only choose this option if you have one of these processors as a
1681	  kernel built with this option will not run on any other type of
1682	  processor or vice versa.
1683
1684config CPU_R4X00
1685	bool "R4x00"
1686	depends on SYS_HAS_CPU_R4X00
1687	select CPU_SUPPORTS_32BIT_KERNEL
1688	select CPU_SUPPORTS_64BIT_KERNEL
1689	select CPU_SUPPORTS_HUGEPAGES
1690	help
1691	  MIPS Technologies R4000-series processors other than 4300, including
1692	  the R4000, R4400, R4600, and 4700.
1693
1694config CPU_TX49XX
1695	bool "R49XX"
1696	depends on SYS_HAS_CPU_TX49XX
1697	select CPU_HAS_PREFETCH
1698	select CPU_SUPPORTS_32BIT_KERNEL
1699	select CPU_SUPPORTS_64BIT_KERNEL
1700	select CPU_SUPPORTS_HUGEPAGES
1701
1702config CPU_R5000
1703	bool "R5000"
1704	depends on SYS_HAS_CPU_R5000
1705	select CPU_SUPPORTS_32BIT_KERNEL
1706	select CPU_SUPPORTS_64BIT_KERNEL
1707	select CPU_SUPPORTS_HUGEPAGES
1708	help
1709	  MIPS Technologies R5000-series processors other than the Nevada.
1710
1711config CPU_R5500
1712	bool "R5500"
1713	depends on SYS_HAS_CPU_R5500
1714	select CPU_SUPPORTS_32BIT_KERNEL
1715	select CPU_SUPPORTS_64BIT_KERNEL
1716	select CPU_SUPPORTS_HUGEPAGES
1717	help
1718	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1719	  instruction set.
1720
1721config CPU_NEVADA
1722	bool "RM52xx"
1723	depends on SYS_HAS_CPU_NEVADA
1724	select CPU_SUPPORTS_32BIT_KERNEL
1725	select CPU_SUPPORTS_64BIT_KERNEL
1726	select CPU_SUPPORTS_HUGEPAGES
1727	help
1728	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1729
1730config CPU_R10000
1731	bool "R10000"
1732	depends on SYS_HAS_CPU_R10000
1733	select CPU_HAS_PREFETCH
1734	select CPU_SUPPORTS_32BIT_KERNEL
1735	select CPU_SUPPORTS_64BIT_KERNEL
1736	select CPU_SUPPORTS_HIGHMEM
1737	select CPU_SUPPORTS_HUGEPAGES
1738	help
1739	  MIPS Technologies R10000-series processors.
1740
1741config CPU_RM7000
1742	bool "RM7000"
1743	depends on SYS_HAS_CPU_RM7000
1744	select CPU_HAS_PREFETCH
1745	select CPU_SUPPORTS_32BIT_KERNEL
1746	select CPU_SUPPORTS_64BIT_KERNEL
1747	select CPU_SUPPORTS_HIGHMEM
1748	select CPU_SUPPORTS_HUGEPAGES
1749
1750config CPU_SB1
1751	bool "SB1"
1752	depends on SYS_HAS_CPU_SB1
1753	select CPU_SUPPORTS_32BIT_KERNEL
1754	select CPU_SUPPORTS_64BIT_KERNEL
1755	select CPU_SUPPORTS_HIGHMEM
1756	select CPU_SUPPORTS_HUGEPAGES
1757	select WEAK_ORDERING
1758
1759config CPU_CAVIUM_OCTEON
1760	bool "Cavium Octeon processor"
1761	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1762	select CPU_HAS_PREFETCH
1763	select CPU_SUPPORTS_64BIT_KERNEL
1764	select WEAK_ORDERING
1765	select CPU_SUPPORTS_HIGHMEM
1766	select CPU_SUPPORTS_HUGEPAGES
1767	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1768	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1769	select MIPS_L1_CACHE_SHIFT_7
1770	select HAVE_KVM
1771	help
1772	  The Cavium Octeon processor is a highly integrated chip containing
1773	  many ethernet hardware widgets for networking tasks. The processor
1774	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1775	  Full details can be found at http://www.caviumnetworks.com.
1776
1777config CPU_BMIPS
1778	bool "Broadcom BMIPS"
1779	depends on SYS_HAS_CPU_BMIPS
1780	select CPU_MIPS32
1781	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1782	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1783	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1784	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1785	select CPU_SUPPORTS_32BIT_KERNEL
1786	select DMA_NONCOHERENT
1787	select IRQ_MIPS_CPU
1788	select SWAP_IO_SPACE
1789	select WEAK_ORDERING
1790	select CPU_SUPPORTS_HIGHMEM
1791	select CPU_HAS_PREFETCH
1792	select CPU_SUPPORTS_CPUFREQ
1793	select MIPS_EXTERNAL_TIMER
1794	help
1795	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1796
1797config CPU_XLR
1798	bool "Netlogic XLR SoC"
1799	depends on SYS_HAS_CPU_XLR
1800	select CPU_SUPPORTS_32BIT_KERNEL
1801	select CPU_SUPPORTS_64BIT_KERNEL
1802	select CPU_SUPPORTS_HIGHMEM
1803	select CPU_SUPPORTS_HUGEPAGES
1804	select WEAK_ORDERING
1805	select WEAK_REORDERING_BEYOND_LLSC
1806	help
1807	  Netlogic Microsystems XLR/XLS processors.
1808
1809config CPU_XLP
1810	bool "Netlogic XLP SoC"
1811	depends on SYS_HAS_CPU_XLP
1812	select CPU_SUPPORTS_32BIT_KERNEL
1813	select CPU_SUPPORTS_64BIT_KERNEL
1814	select CPU_SUPPORTS_HIGHMEM
1815	select WEAK_ORDERING
1816	select WEAK_REORDERING_BEYOND_LLSC
1817	select CPU_HAS_PREFETCH
1818	select CPU_MIPSR2
1819	select CPU_SUPPORTS_HUGEPAGES
1820	select MIPS_ASID_BITS_VARIABLE
1821	help
1822	  Netlogic Microsystems XLP processors.
1823endchoice
1824
1825config CPU_MIPS32_3_5_FEATURES
1826	bool "MIPS32 Release 3.5 Features"
1827	depends on SYS_HAS_CPU_MIPS32_R3_5
1828	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1829	help
1830	  Choose this option to build a kernel for release 2 or later of the
1831	  MIPS32 architecture including features from the 3.5 release such as
1832	  support for Enhanced Virtual Addressing (EVA).
1833
1834config CPU_MIPS32_3_5_EVA
1835	bool "Enhanced Virtual Addressing (EVA)"
1836	depends on CPU_MIPS32_3_5_FEATURES
1837	select EVA
1838	default y
1839	help
1840	  Choose this option if you want to enable the Enhanced Virtual
1841	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1842	  One of its primary benefits is an increase in the maximum size
1843	  of lowmem (up to 3GB). If unsure, say 'N' here.
1844
1845config CPU_MIPS32_R5_FEATURES
1846	bool "MIPS32 Release 5 Features"
1847	depends on SYS_HAS_CPU_MIPS32_R5
1848	depends on CPU_MIPS32_R2
1849	help
1850	  Choose this option to build a kernel for release 2 or later of the
1851	  MIPS32 architecture including features from release 5 such as
1852	  support for Extended Physical Addressing (XPA).
1853
1854config CPU_MIPS32_R5_XPA
1855	bool "Extended Physical Addressing (XPA)"
1856	depends on CPU_MIPS32_R5_FEATURES
1857	depends on !EVA
1858	depends on !PAGE_SIZE_4KB
1859	depends on SYS_SUPPORTS_HIGHMEM
1860	select XPA
1861	select HIGHMEM
1862	select PHYS_ADDR_T_64BIT
1863	default n
1864	help
1865	  Choose this option if you want to enable the Extended Physical
1866	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1867	  benefit is to increase physical addressing equal to or greater
1868	  than 40 bits. Note that this has the side effect of turning on
1869	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1870	  If unsure, say 'N' here.
1871
1872if CPU_LOONGSON2F
1873config CPU_NOP_WORKAROUNDS
1874	bool
1875
1876config CPU_JUMP_WORKAROUNDS
1877	bool
1878
1879config CPU_LOONGSON2F_WORKAROUNDS
1880	bool "Loongson 2F Workarounds"
1881	default y
1882	select CPU_NOP_WORKAROUNDS
1883	select CPU_JUMP_WORKAROUNDS
1884	help
1885	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1886	  require workarounds.  Without workarounds the system may hang
1887	  unexpectedly.  For more information please refer to the gas
1888	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1889
1890	  Loongson 2F03 and later have fixed these issues and no workarounds
1891	  are needed.  The workarounds have no significant side effect on them
1892	  but may decrease the performance of the system so this option should
1893	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1894	  systems.
1895
1896	  If unsure, please say Y.
1897endif # CPU_LOONGSON2F
1898
1899config SYS_SUPPORTS_ZBOOT
1900	bool
1901	select HAVE_KERNEL_GZIP
1902	select HAVE_KERNEL_BZIP2
1903	select HAVE_KERNEL_LZ4
1904	select HAVE_KERNEL_LZMA
1905	select HAVE_KERNEL_LZO
1906	select HAVE_KERNEL_XZ
1907
1908config SYS_SUPPORTS_ZBOOT_UART16550
1909	bool
1910	select SYS_SUPPORTS_ZBOOT
1911
1912config SYS_SUPPORTS_ZBOOT_UART_PROM
1913	bool
1914	select SYS_SUPPORTS_ZBOOT
1915
1916config CPU_LOONGSON2EF
1917	bool
1918	select CPU_SUPPORTS_32BIT_KERNEL
1919	select CPU_SUPPORTS_64BIT_KERNEL
1920	select CPU_SUPPORTS_HIGHMEM
1921	select CPU_SUPPORTS_HUGEPAGES
1922	select ARCH_HAS_PHYS_TO_DMA
1923
1924config CPU_LOONGSON32
1925	bool
1926	select CPU_MIPS32
1927	select CPU_MIPSR2
1928	select CPU_HAS_PREFETCH
1929	select CPU_SUPPORTS_32BIT_KERNEL
1930	select CPU_SUPPORTS_HIGHMEM
1931	select CPU_SUPPORTS_CPUFREQ
1932
1933config CPU_BMIPS32_3300
1934	select SMP_UP if SMP
1935	bool
1936
1937config CPU_BMIPS4350
1938	bool
1939	select SYS_SUPPORTS_SMP
1940	select SYS_SUPPORTS_HOTPLUG_CPU
1941
1942config CPU_BMIPS4380
1943	bool
1944	select MIPS_L1_CACHE_SHIFT_6
1945	select SYS_SUPPORTS_SMP
1946	select SYS_SUPPORTS_HOTPLUG_CPU
1947	select CPU_HAS_RIXI
1948
1949config CPU_BMIPS5000
1950	bool
1951	select MIPS_CPU_SCACHE
1952	select MIPS_L1_CACHE_SHIFT_7
1953	select SYS_SUPPORTS_SMP
1954	select SYS_SUPPORTS_HOTPLUG_CPU
1955	select CPU_HAS_RIXI
1956
1957config SYS_HAS_CPU_LOONGSON64
1958	bool
1959	select CPU_SUPPORTS_CPUFREQ
1960	select CPU_HAS_RIXI
1961
1962config SYS_HAS_CPU_LOONGSON2E
1963	bool
1964
1965config SYS_HAS_CPU_LOONGSON2F
1966	bool
1967	select CPU_SUPPORTS_CPUFREQ
1968	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1969
1970config SYS_HAS_CPU_LOONGSON1B
1971	bool
1972
1973config SYS_HAS_CPU_LOONGSON1C
1974	bool
1975
1976config SYS_HAS_CPU_MIPS32_R1
1977	bool
1978
1979config SYS_HAS_CPU_MIPS32_R2
1980	bool
1981
1982config SYS_HAS_CPU_MIPS32_R3_5
1983	bool
1984
1985config SYS_HAS_CPU_MIPS32_R5
1986	bool
1987	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1988
1989config SYS_HAS_CPU_MIPS32_R6
1990	bool
1991	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1992
1993config SYS_HAS_CPU_MIPS64_R1
1994	bool
1995
1996config SYS_HAS_CPU_MIPS64_R2
1997	bool
1998
1999config SYS_HAS_CPU_MIPS64_R6
2000	bool
2001	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2002
2003config SYS_HAS_CPU_R3000
2004	bool
2005
2006config SYS_HAS_CPU_TX39XX
2007	bool
2008
2009config SYS_HAS_CPU_VR41XX
2010	bool
2011
2012config SYS_HAS_CPU_R4X00
2013	bool
2014
2015config SYS_HAS_CPU_TX49XX
2016	bool
2017
2018config SYS_HAS_CPU_R5000
2019	bool
2020
2021config SYS_HAS_CPU_R5500
2022	bool
2023
2024config SYS_HAS_CPU_NEVADA
2025	bool
2026
2027config SYS_HAS_CPU_R10000
2028	bool
2029	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2030
2031config SYS_HAS_CPU_RM7000
2032	bool
2033
2034config SYS_HAS_CPU_SB1
2035	bool
2036
2037config SYS_HAS_CPU_CAVIUM_OCTEON
2038	bool
2039
2040config SYS_HAS_CPU_BMIPS
2041	bool
2042
2043config SYS_HAS_CPU_BMIPS32_3300
2044	bool
2045	select SYS_HAS_CPU_BMIPS
2046
2047config SYS_HAS_CPU_BMIPS4350
2048	bool
2049	select SYS_HAS_CPU_BMIPS
2050
2051config SYS_HAS_CPU_BMIPS4380
2052	bool
2053	select SYS_HAS_CPU_BMIPS
2054
2055config SYS_HAS_CPU_BMIPS5000
2056	bool
2057	select SYS_HAS_CPU_BMIPS
2058	select ARCH_HAS_SYNC_DMA_FOR_CPU
2059
2060config SYS_HAS_CPU_XLR
2061	bool
2062
2063config SYS_HAS_CPU_XLP
2064	bool
2065
2066#
2067# CPU may reorder R->R, R->W, W->R, W->W
2068# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2069#
2070config WEAK_ORDERING
2071	bool
2072
2073#
2074# CPU may reorder reads and writes beyond LL/SC
2075# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2076#
2077config WEAK_REORDERING_BEYOND_LLSC
2078	bool
2079endmenu
2080
2081#
2082# These two indicate any level of the MIPS32 and MIPS64 architecture
2083#
2084config CPU_MIPS32
2085	bool
2086	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2087
2088config CPU_MIPS64
2089	bool
2090	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2091
2092#
2093# These indicate the revision of the architecture
2094#
2095config CPU_MIPSR1
2096	bool
2097	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2098
2099config CPU_MIPSR2
2100	bool
2101	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2102	select CPU_HAS_RIXI
2103	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2104	select MIPS_SPRAM
2105
2106config CPU_MIPSR6
2107	bool
2108	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2109	select CPU_HAS_RIXI
2110	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2111	select HAVE_ARCH_BITREVERSE
2112	select MIPS_ASID_BITS_VARIABLE
2113	select MIPS_CRC_SUPPORT
2114	select MIPS_SPRAM
2115
2116config TARGET_ISA_REV
2117	int
2118	default 1 if CPU_MIPSR1
2119	default 2 if CPU_MIPSR2
2120	default 6 if CPU_MIPSR6
2121	default 0
2122	help
2123	  Reflects the ISA revision being targeted by the kernel build. This
2124	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2125
2126config EVA
2127	bool
2128
2129config XPA
2130	bool
2131
2132config SYS_SUPPORTS_32BIT_KERNEL
2133	bool
2134config SYS_SUPPORTS_64BIT_KERNEL
2135	bool
2136config CPU_SUPPORTS_32BIT_KERNEL
2137	bool
2138config CPU_SUPPORTS_64BIT_KERNEL
2139	bool
2140config CPU_SUPPORTS_CPUFREQ
2141	bool
2142config CPU_SUPPORTS_ADDRWINCFG
2143	bool
2144config CPU_SUPPORTS_HUGEPAGES
2145	bool
2146	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2147config MIPS_PGD_C0_CONTEXT
2148	bool
2149	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2150
2151#
2152# Set to y for ptrace access to watch registers.
2153#
2154config HARDWARE_WATCHPOINTS
2155	bool
2156	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2157
2158menu "Kernel type"
2159
2160choice
2161	prompt "Kernel code model"
2162	help
2163	  You should only select this option if you have a workload that
2164	  actually benefits from 64-bit processing or if your machine has
2165	  large memory.  You will only be presented a single option in this
2166	  menu if your system does not support both 32-bit and 64-bit kernels.
2167
2168config 32BIT
2169	bool "32-bit kernel"
2170	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2171	select TRAD_SIGNALS
2172	help
2173	  Select this option if you want to build a 32-bit kernel.
2174
2175config 64BIT
2176	bool "64-bit kernel"
2177	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2178	help
2179	  Select this option if you want to build a 64-bit kernel.
2180
2181endchoice
2182
2183config KVM_GUEST
2184	bool "KVM Guest Kernel"
2185	depends on BROKEN_ON_SMP
2186	help
2187	  Select this option if building a guest kernel for KVM (Trap & Emulate)
2188	  mode.
2189
2190config KVM_GUEST_TIMER_FREQ
2191	int "Count/Compare Timer Frequency (MHz)"
2192	depends on KVM_GUEST
2193	default 100
2194	help
2195	  Set this to non-zero if building a guest kernel for KVM to skip RTC
2196	  emulation when determining guest CPU Frequency. Instead, the guest's
2197	  timer frequency is specified directly.
2198
2199config MIPS_VA_BITS_48
2200	bool "48 bits virtual memory"
2201	depends on 64BIT
2202	help
2203	  Support a maximum at least 48 bits of application virtual
2204	  memory.  Default is 40 bits or less, depending on the CPU.
2205	  For page sizes 16k and above, this option results in a small
2206	  memory overhead for page tables.  For 4k page size, a fourth
2207	  level of page tables is added which imposes both a memory
2208	  overhead as well as slower TLB fault handling.
2209
2210	  If unsure, say N.
2211
2212choice
2213	prompt "Kernel page size"
2214	default PAGE_SIZE_4KB
2215
2216config PAGE_SIZE_4KB
2217	bool "4kB"
2218	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2219	help
2220	  This option select the standard 4kB Linux page size.  On some
2221	  R3000-family processors this is the only available page size.  Using
2222	  4kB page size will minimize memory consumption and is therefore
2223	  recommended for low memory systems.
2224
2225config PAGE_SIZE_8KB
2226	bool "8kB"
2227	depends on CPU_CAVIUM_OCTEON
2228	depends on !MIPS_VA_BITS_48
2229	help
2230	  Using 8kB page size will result in higher performance kernel at
2231	  the price of higher memory consumption.  This option is available
2232	  only on cnMIPS processors.  Note that you will need a suitable Linux
2233	  distribution to support this.
2234
2235config PAGE_SIZE_16KB
2236	bool "16kB"
2237	depends on !CPU_R3000 && !CPU_TX39XX
2238	help
2239	  Using 16kB page size will result in higher performance kernel at
2240	  the price of higher memory consumption.  This option is available on
2241	  all non-R3000 family processors.  Note that you will need a suitable
2242	  Linux distribution to support this.
2243
2244config PAGE_SIZE_32KB
2245	bool "32kB"
2246	depends on CPU_CAVIUM_OCTEON
2247	depends on !MIPS_VA_BITS_48
2248	help
2249	  Using 32kB page size will result in higher performance kernel at
2250	  the price of higher memory consumption.  This option is available
2251	  only on cnMIPS cores.  Note that you will need a suitable Linux
2252	  distribution to support this.
2253
2254config PAGE_SIZE_64KB
2255	bool "64kB"
2256	depends on !CPU_R3000 && !CPU_TX39XX
2257	help
2258	  Using 64kB page size will result in higher performance kernel at
2259	  the price of higher memory consumption.  This option is available on
2260	  all non-R3000 family processor.  Not that at the time of this
2261	  writing this option is still high experimental.
2262
2263endchoice
2264
2265config FORCE_MAX_ZONEORDER
2266	int "Maximum zone order"
2267	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2268	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2269	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2270	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2271	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2272	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2273	range 11 64
2274	default "11"
2275	help
2276	  The kernel memory allocator divides physically contiguous memory
2277	  blocks into "zones", where each zone is a power of two number of
2278	  pages.  This option selects the largest power of two that the kernel
2279	  keeps in the memory allocator.  If you need to allocate very large
2280	  blocks of physically contiguous memory, then you may need to
2281	  increase this value.
2282
2283	  This config option is actually maximum order plus one. For example,
2284	  a value of 11 means that the largest free memory block is 2^10 pages.
2285
2286	  The page size is not necessarily 4KB.  Keep this in mind
2287	  when choosing a value for this option.
2288
2289config BOARD_SCACHE
2290	bool
2291
2292config IP22_CPU_SCACHE
2293	bool
2294	select BOARD_SCACHE
2295
2296#
2297# Support for a MIPS32 / MIPS64 style S-caches
2298#
2299config MIPS_CPU_SCACHE
2300	bool
2301	select BOARD_SCACHE
2302
2303config R5000_CPU_SCACHE
2304	bool
2305	select BOARD_SCACHE
2306
2307config RM7000_CPU_SCACHE
2308	bool
2309	select BOARD_SCACHE
2310
2311config SIBYTE_DMA_PAGEOPS
2312	bool "Use DMA to clear/copy pages"
2313	depends on CPU_SB1
2314	help
2315	  Instead of using the CPU to zero and copy pages, use a Data Mover
2316	  channel.  These DMA channels are otherwise unused by the standard
2317	  SiByte Linux port.  Seems to give a small performance benefit.
2318
2319config CPU_HAS_PREFETCH
2320	bool
2321
2322config CPU_GENERIC_DUMP_TLB
2323	bool
2324	default y if !(CPU_R3000 || CPU_TX39XX)
2325
2326config MIPS_FP_SUPPORT
2327	bool "Floating Point support" if EXPERT
2328	default y
2329	help
2330	  Select y to include support for floating point in the kernel
2331	  including initialization of FPU hardware, FP context save & restore
2332	  and emulation of an FPU where necessary. Without this support any
2333	  userland program attempting to use floating point instructions will
2334	  receive a SIGILL.
2335
2336	  If you know that your userland will not attempt to use floating point
2337	  instructions then you can say n here to shrink the kernel a little.
2338
2339	  If unsure, say y.
2340
2341config CPU_R2300_FPU
2342	bool
2343	depends on MIPS_FP_SUPPORT
2344	default y if CPU_R3000 || CPU_TX39XX
2345
2346config CPU_R3K_TLB
2347	bool
2348
2349config CPU_R4K_FPU
2350	bool
2351	depends on MIPS_FP_SUPPORT
2352	default y if !CPU_R2300_FPU
2353
2354config CPU_R4K_CACHE_TLB
2355	bool
2356	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2357
2358config MIPS_MT_SMP
2359	bool "MIPS MT SMP support (1 TC on each available VPE)"
2360	default y
2361	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2362	select CPU_MIPSR2_IRQ_VI
2363	select CPU_MIPSR2_IRQ_EI
2364	select SYNC_R4K
2365	select MIPS_MT
2366	select SMP
2367	select SMP_UP
2368	select SYS_SUPPORTS_SMP
2369	select SYS_SUPPORTS_SCHED_SMT
2370	select MIPS_PERF_SHARED_TC_COUNTERS
2371	help
2372	  This is a kernel model which is known as SMVP. This is supported
2373	  on cores with the MT ASE and uses the available VPEs to implement
2374	  virtual processors which supports SMP. This is equivalent to the
2375	  Intel Hyperthreading feature. For further information go to
2376	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2377
2378config MIPS_MT
2379	bool
2380
2381config SCHED_SMT
2382	bool "SMT (multithreading) scheduler support"
2383	depends on SYS_SUPPORTS_SCHED_SMT
2384	default n
2385	help
2386	  SMT scheduler support improves the CPU scheduler's decision making
2387	  when dealing with MIPS MT enabled cores at a cost of slightly
2388	  increased overhead in some places. If unsure say N here.
2389
2390config SYS_SUPPORTS_SCHED_SMT
2391	bool
2392
2393config SYS_SUPPORTS_MULTITHREADING
2394	bool
2395
2396config MIPS_MT_FPAFF
2397	bool "Dynamic FPU affinity for FP-intensive threads"
2398	default y
2399	depends on MIPS_MT_SMP
2400
2401config MIPSR2_TO_R6_EMULATOR
2402	bool "MIPS R2-to-R6 emulator"
2403	depends on CPU_MIPSR6
2404	depends on MIPS_FP_SUPPORT
2405	default y
2406	help
2407	  Choose this option if you want to run non-R6 MIPS userland code.
2408	  Even if you say 'Y' here, the emulator will still be disabled by
2409	  default. You can enable it using the 'mipsr2emu' kernel option.
2410	  The only reason this is a build-time option is to save ~14K from the
2411	  final kernel image.
2412
2413config SYS_SUPPORTS_VPE_LOADER
2414	bool
2415	depends on SYS_SUPPORTS_MULTITHREADING
2416	help
2417	  Indicates that the platform supports the VPE loader, and provides
2418	  physical_memsize.
2419
2420config MIPS_VPE_LOADER
2421	bool "VPE loader support."
2422	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2423	select CPU_MIPSR2_IRQ_VI
2424	select CPU_MIPSR2_IRQ_EI
2425	select MIPS_MT
2426	help
2427	  Includes a loader for loading an elf relocatable object
2428	  onto another VPE and running it.
2429
2430config MIPS_VPE_LOADER_CMP
2431	bool
2432	default "y"
2433	depends on MIPS_VPE_LOADER && MIPS_CMP
2434
2435config MIPS_VPE_LOADER_MT
2436	bool
2437	default "y"
2438	depends on MIPS_VPE_LOADER && !MIPS_CMP
2439
2440config MIPS_VPE_LOADER_TOM
2441	bool "Load VPE program into memory hidden from linux"
2442	depends on MIPS_VPE_LOADER
2443	default y
2444	help
2445	  The loader can use memory that is present but has been hidden from
2446	  Linux using the kernel command line option "mem=xxMB". It's up to
2447	  you to ensure the amount you put in the option and the space your
2448	  program requires is less or equal to the amount physically present.
2449
2450config MIPS_VPE_APSP_API
2451	bool "Enable support for AP/SP API (RTLX)"
2452	depends on MIPS_VPE_LOADER
2453
2454config MIPS_VPE_APSP_API_CMP
2455	bool
2456	default "y"
2457	depends on MIPS_VPE_APSP_API && MIPS_CMP
2458
2459config MIPS_VPE_APSP_API_MT
2460	bool
2461	default "y"
2462	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2463
2464config MIPS_CMP
2465	bool "MIPS CMP framework support (DEPRECATED)"
2466	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2467	select SMP
2468	select SYNC_R4K
2469	select SYS_SUPPORTS_SMP
2470	select WEAK_ORDERING
2471	default n
2472	help
2473	  Select this if you are using a bootloader which implements the "CMP
2474	  framework" protocol (ie. YAMON) and want your kernel to make use of
2475	  its ability to start secondary CPUs.
2476
2477	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2478	  instead of this.
2479
2480config MIPS_CPS
2481	bool "MIPS Coherent Processing System support"
2482	depends on SYS_SUPPORTS_MIPS_CPS
2483	select MIPS_CM
2484	select MIPS_CPS_PM if HOTPLUG_CPU
2485	select SMP
2486	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2487	select SYS_SUPPORTS_HOTPLUG_CPU
2488	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2489	select SYS_SUPPORTS_SMP
2490	select WEAK_ORDERING
2491	help
2492	  Select this if you wish to run an SMP kernel across multiple cores
2493	  within a MIPS Coherent Processing System. When this option is
2494	  enabled the kernel will probe for other cores and boot them with
2495	  no external assistance. It is safe to enable this when hardware
2496	  support is unavailable.
2497
2498config MIPS_CPS_PM
2499	depends on MIPS_CPS
2500	bool
2501
2502config MIPS_CM
2503	bool
2504	select MIPS_CPC
2505
2506config MIPS_CPC
2507	bool
2508
2509config SB1_PASS_2_WORKAROUNDS
2510	bool
2511	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2512	default y
2513
2514config SB1_PASS_2_1_WORKAROUNDS
2515	bool
2516	depends on CPU_SB1 && CPU_SB1_PASS_2
2517	default y
2518
2519choice
2520	prompt "SmartMIPS or microMIPS ASE support"
2521
2522config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2523	bool "None"
2524	help
2525	  Select this if you want neither microMIPS nor SmartMIPS support
2526
2527config CPU_HAS_SMARTMIPS
2528	depends on SYS_SUPPORTS_SMARTMIPS
2529	bool "SmartMIPS"
2530	help
2531	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2532	  increased security at both hardware and software level for
2533	  smartcards.  Enabling this option will allow proper use of the
2534	  SmartMIPS instructions by Linux applications.  However a kernel with
2535	  this option will not work on a MIPS core without SmartMIPS core.  If
2536	  you don't know you probably don't have SmartMIPS and should say N
2537	  here.
2538
2539config CPU_MICROMIPS
2540	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2541	bool "microMIPS"
2542	help
2543	  When this option is enabled the kernel will be built using the
2544	  microMIPS ISA
2545
2546endchoice
2547
2548config CPU_HAS_MSA
2549	bool "Support for the MIPS SIMD Architecture"
2550	depends on CPU_SUPPORTS_MSA
2551	depends on MIPS_FP_SUPPORT
2552	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2553	help
2554	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2555	  and a set of SIMD instructions to operate on them. When this option
2556	  is enabled the kernel will support allocating & switching MSA
2557	  vector register contexts. If you know that your kernel will only be
2558	  running on CPUs which do not support MSA or that your userland will
2559	  not be making use of it then you may wish to say N here to reduce
2560	  the size & complexity of your kernel.
2561
2562	  If unsure, say Y.
2563
2564config CPU_HAS_WB
2565	bool
2566
2567config XKS01
2568	bool
2569
2570config CPU_HAS_DIEI
2571	depends on !CPU_DIEI_BROKEN
2572	bool
2573
2574config CPU_DIEI_BROKEN
2575	bool
2576
2577config CPU_HAS_RIXI
2578	bool
2579
2580config CPU_NO_LOAD_STORE_LR
2581	bool
2582	help
2583	  CPU lacks support for unaligned load and store instructions:
2584	  LWL, LWR, SWL, SWR (Load/store word left/right).
2585	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2586	  systems).
2587
2588#
2589# Vectored interrupt mode is an R2 feature
2590#
2591config CPU_MIPSR2_IRQ_VI
2592	bool
2593
2594#
2595# Extended interrupt mode is an R2 feature
2596#
2597config CPU_MIPSR2_IRQ_EI
2598	bool
2599
2600config CPU_HAS_SYNC
2601	bool
2602	depends on !CPU_R3000
2603	default y
2604
2605#
2606# CPU non-features
2607#
2608config CPU_DADDI_WORKAROUNDS
2609	bool
2610
2611config CPU_R4000_WORKAROUNDS
2612	bool
2613	select CPU_R4400_WORKAROUNDS
2614
2615config CPU_R4400_WORKAROUNDS
2616	bool
2617
2618config CPU_R4X00_BUGS64
2619	bool
2620	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2621
2622config MIPS_ASID_SHIFT
2623	int
2624	default 6 if CPU_R3000 || CPU_TX39XX
2625	default 0
2626
2627config MIPS_ASID_BITS
2628	int
2629	default 0 if MIPS_ASID_BITS_VARIABLE
2630	default 6 if CPU_R3000 || CPU_TX39XX
2631	default 8
2632
2633config MIPS_ASID_BITS_VARIABLE
2634	bool
2635
2636config MIPS_CRC_SUPPORT
2637	bool
2638
2639#
2640# - Highmem only makes sense for the 32-bit kernel.
2641# - The current highmem code will only work properly on physically indexed
2642#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2643#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2644#   moment we protect the user and offer the highmem option only on machines
2645#   where it's known to be safe.  This will not offer highmem on a few systems
2646#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2647#   indexed CPUs but we're playing safe.
2648# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2649#   know they might have memory configurations that could make use of highmem
2650#   support.
2651#
2652config HIGHMEM
2653	bool "High Memory Support"
2654	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2655
2656config CPU_SUPPORTS_HIGHMEM
2657	bool
2658
2659config SYS_SUPPORTS_HIGHMEM
2660	bool
2661
2662config SYS_SUPPORTS_SMARTMIPS
2663	bool
2664
2665config SYS_SUPPORTS_MICROMIPS
2666	bool
2667
2668config SYS_SUPPORTS_MIPS16
2669	bool
2670	help
2671	  This option must be set if a kernel might be executed on a MIPS16-
2672	  enabled CPU even if MIPS16 is not actually being used.  In other
2673	  words, it makes the kernel MIPS16-tolerant.
2674
2675config CPU_SUPPORTS_MSA
2676	bool
2677
2678config ARCH_FLATMEM_ENABLE
2679	def_bool y
2680	depends on !NUMA && !CPU_LOONGSON2EF
2681
2682config ARCH_SPARSEMEM_ENABLE
2683	bool
2684	select SPARSEMEM_STATIC if !SGI_IP27
2685
2686config NUMA
2687	bool "NUMA Support"
2688	depends on SYS_SUPPORTS_NUMA
2689	help
2690	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2691	  Access).  This option improves performance on systems with more
2692	  than two nodes; on two node systems it is generally better to
2693	  leave it disabled; on single node systems leave this option
2694	  disabled.
2695
2696config SYS_SUPPORTS_NUMA
2697	bool
2698
2699config HAVE_SETUP_PER_CPU_AREA
2700	def_bool y
2701	depends on NUMA
2702
2703config NEED_PER_CPU_EMBED_FIRST_CHUNK
2704	def_bool y
2705	depends on NUMA
2706
2707config RELOCATABLE
2708	bool "Relocatable kernel"
2709	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2710	help
2711	  This builds a kernel image that retains relocation information
2712	  so it can be loaded someplace besides the default 1MB.
2713	  The relocations make the kernel binary about 15% larger,
2714	  but are discarded at runtime
2715
2716config RELOCATION_TABLE_SIZE
2717	hex "Relocation table size"
2718	depends on RELOCATABLE
2719	range 0x0 0x01000000
2720	default "0x00100000"
2721	---help---
2722	  A table of relocation data will be appended to the kernel binary
2723	  and parsed at boot to fix up the relocated kernel.
2724
2725	  This option allows the amount of space reserved for the table to be
2726	  adjusted, although the default of 1Mb should be ok in most cases.
2727
2728	  The build will fail and a valid size suggested if this is too small.
2729
2730	  If unsure, leave at the default value.
2731
2732config RANDOMIZE_BASE
2733	bool "Randomize the address of the kernel image"
2734	depends on RELOCATABLE
2735	---help---
2736	  Randomizes the physical and virtual address at which the
2737	  kernel image is loaded, as a security feature that
2738	  deters exploit attempts relying on knowledge of the location
2739	  of kernel internals.
2740
2741	  Entropy is generated using any coprocessor 0 registers available.
2742
2743	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2744
2745	  If unsure, say N.
2746
2747config RANDOMIZE_BASE_MAX_OFFSET
2748	hex "Maximum kASLR offset" if EXPERT
2749	depends on RANDOMIZE_BASE
2750	range 0x0 0x40000000 if EVA || 64BIT
2751	range 0x0 0x08000000
2752	default "0x01000000"
2753	---help---
2754	  When kASLR is active, this provides the maximum offset that will
2755	  be applied to the kernel image. It should be set according to the
2756	  amount of physical RAM available in the target system minus
2757	  PHYSICAL_START and must be a power of 2.
2758
2759	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2760	  EVA or 64-bit. The default is 16Mb.
2761
2762config NODES_SHIFT
2763	int
2764	default "6"
2765	depends on NEED_MULTIPLE_NODES
2766
2767config HW_PERF_EVENTS
2768	bool "Enable hardware performance counter support for perf events"
2769	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2770	default y
2771	help
2772	  Enable hardware performance counter support for perf events. If
2773	  disabled, perf events will use software events only.
2774
2775config DMI
2776	bool "Enable DMI scanning"
2777	depends on MACH_LOONGSON64
2778	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2779	default y
2780	help
2781	  Enabled scanning of DMI to identify machine quirks. Say Y
2782	  here unless you have verified that your setup is not
2783	  affected by entries in the DMI blacklist. Required by PNP
2784	  BIOS code.
2785
2786config SMP
2787	bool "Multi-Processing support"
2788	depends on SYS_SUPPORTS_SMP
2789	help
2790	  This enables support for systems with more than one CPU. If you have
2791	  a system with only one CPU, say N. If you have a system with more
2792	  than one CPU, say Y.
2793
2794	  If you say N here, the kernel will run on uni- and multiprocessor
2795	  machines, but will use only one CPU of a multiprocessor machine. If
2796	  you say Y here, the kernel will run on many, but not all,
2797	  uniprocessor machines. On a uniprocessor machine, the kernel
2798	  will run faster if you say N here.
2799
2800	  People using multiprocessor machines who say Y here should also say
2801	  Y to "Enhanced Real Time Clock Support", below.
2802
2803	  See also the SMP-HOWTO available at
2804	  <http://www.tldp.org/docs.html#howto>.
2805
2806	  If you don't know what to do here, say N.
2807
2808config HOTPLUG_CPU
2809	bool "Support for hot-pluggable CPUs"
2810	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2811	help
2812	  Say Y here to allow turning CPUs off and on. CPUs can be
2813	  controlled through /sys/devices/system/cpu.
2814	  (Note: power management support will enable this option
2815	    automatically on SMP systems. )
2816	  Say N if you want to disable CPU hotplug.
2817
2818config SMP_UP
2819	bool
2820
2821config SYS_SUPPORTS_MIPS_CMP
2822	bool
2823
2824config SYS_SUPPORTS_MIPS_CPS
2825	bool
2826
2827config SYS_SUPPORTS_SMP
2828	bool
2829
2830config NR_CPUS_DEFAULT_4
2831	bool
2832
2833config NR_CPUS_DEFAULT_8
2834	bool
2835
2836config NR_CPUS_DEFAULT_16
2837	bool
2838
2839config NR_CPUS_DEFAULT_32
2840	bool
2841
2842config NR_CPUS_DEFAULT_64
2843	bool
2844
2845config NR_CPUS
2846	int "Maximum number of CPUs (2-256)"
2847	range 2 256
2848	depends on SMP
2849	default "4" if NR_CPUS_DEFAULT_4
2850	default "8" if NR_CPUS_DEFAULT_8
2851	default "16" if NR_CPUS_DEFAULT_16
2852	default "32" if NR_CPUS_DEFAULT_32
2853	default "64" if NR_CPUS_DEFAULT_64
2854	help
2855	  This allows you to specify the maximum number of CPUs which this
2856	  kernel will support.  The maximum supported value is 32 for 32-bit
2857	  kernel and 64 for 64-bit kernels; the minimum value which makes
2858	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2859	  and 2 for all others.
2860
2861	  This is purely to save memory - each supported CPU adds
2862	  approximately eight kilobytes to the kernel image.  For best
2863	  performance should round up your number of processors to the next
2864	  power of two.
2865
2866config MIPS_PERF_SHARED_TC_COUNTERS
2867	bool
2868
2869config MIPS_NR_CPU_NR_MAP_1024
2870	bool
2871
2872config MIPS_NR_CPU_NR_MAP
2873	int
2874	depends on SMP
2875	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2876	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2877
2878#
2879# Timer Interrupt Frequency Configuration
2880#
2881
2882choice
2883	prompt "Timer frequency"
2884	default HZ_250
2885	help
2886	  Allows the configuration of the timer frequency.
2887
2888	config HZ_24
2889		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2890
2891	config HZ_48
2892		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2893
2894	config HZ_100
2895		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2896
2897	config HZ_128
2898		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2899
2900	config HZ_250
2901		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2902
2903	config HZ_256
2904		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2905
2906	config HZ_1000
2907		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2908
2909	config HZ_1024
2910		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2911
2912endchoice
2913
2914config SYS_SUPPORTS_24HZ
2915	bool
2916
2917config SYS_SUPPORTS_48HZ
2918	bool
2919
2920config SYS_SUPPORTS_100HZ
2921	bool
2922
2923config SYS_SUPPORTS_128HZ
2924	bool
2925
2926config SYS_SUPPORTS_250HZ
2927	bool
2928
2929config SYS_SUPPORTS_256HZ
2930	bool
2931
2932config SYS_SUPPORTS_1000HZ
2933	bool
2934
2935config SYS_SUPPORTS_1024HZ
2936	bool
2937
2938config SYS_SUPPORTS_ARBIT_HZ
2939	bool
2940	default y if !SYS_SUPPORTS_24HZ && \
2941		     !SYS_SUPPORTS_48HZ && \
2942		     !SYS_SUPPORTS_100HZ && \
2943		     !SYS_SUPPORTS_128HZ && \
2944		     !SYS_SUPPORTS_250HZ && \
2945		     !SYS_SUPPORTS_256HZ && \
2946		     !SYS_SUPPORTS_1000HZ && \
2947		     !SYS_SUPPORTS_1024HZ
2948
2949config HZ
2950	int
2951	default 24 if HZ_24
2952	default 48 if HZ_48
2953	default 100 if HZ_100
2954	default 128 if HZ_128
2955	default 250 if HZ_250
2956	default 256 if HZ_256
2957	default 1000 if HZ_1000
2958	default 1024 if HZ_1024
2959
2960config SCHED_HRTICK
2961	def_bool HIGH_RES_TIMERS
2962
2963config KEXEC
2964	bool "Kexec system call"
2965	select KEXEC_CORE
2966	help
2967	  kexec is a system call that implements the ability to shutdown your
2968	  current kernel, and to start another kernel.  It is like a reboot
2969	  but it is independent of the system firmware.   And like a reboot
2970	  you can start any kernel with it, not just Linux.
2971
2972	  The name comes from the similarity to the exec system call.
2973
2974	  It is an ongoing process to be certain the hardware in a machine
2975	  is properly shutdown, so do not be surprised if this code does not
2976	  initially work for you.  As of this writing the exact hardware
2977	  interface is strongly in flux, so no good recommendation can be
2978	  made.
2979
2980config CRASH_DUMP
2981	bool "Kernel crash dumps"
2982	help
2983	  Generate crash dump after being started by kexec.
2984	  This should be normally only set in special crash dump kernels
2985	  which are loaded in the main kernel with kexec-tools into
2986	  a specially reserved region and then later executed after
2987	  a crash by kdump/kexec. The crash dump kernel must be compiled
2988	  to a memory address not used by the main kernel or firmware using
2989	  PHYSICAL_START.
2990
2991config PHYSICAL_START
2992	hex "Physical address where the kernel is loaded"
2993	default "0xffffffff84000000"
2994	depends on CRASH_DUMP
2995	help
2996	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2997	  If you plan to use kernel for capturing the crash dump change
2998	  this value to start of the reserved region (the "X" value as
2999	  specified in the "crashkernel=YM@XM" command line boot parameter
3000	  passed to the panic-ed kernel).
3001
3002config SECCOMP
3003	bool "Enable seccomp to safely compute untrusted bytecode"
3004	depends on PROC_FS
3005	default y
3006	help
3007	  This kernel feature is useful for number crunching applications
3008	  that may need to compute untrusted bytecode during their
3009	  execution. By using pipes or other transports made available to
3010	  the process as file descriptors supporting the read/write
3011	  syscalls, it's possible to isolate those applications in
3012	  their own address space using seccomp. Once seccomp is
3013	  enabled via /proc/<pid>/seccomp, it cannot be disabled
3014	  and the task is only allowed to execute a few safe syscalls
3015	  defined by each seccomp mode.
3016
3017	  If unsure, say Y. Only embedded should say N here.
3018
3019config MIPS_O32_FP64_SUPPORT
3020	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3021	depends on 32BIT || MIPS32_O32
3022	help
3023	  When this is enabled, the kernel will support use of 64-bit floating
3024	  point registers with binaries using the O32 ABI along with the
3025	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3026	  32-bit MIPS systems this support is at the cost of increasing the
3027	  size and complexity of the compiled FPU emulator. Thus if you are
3028	  running a MIPS32 system and know that none of your userland binaries
3029	  will require 64-bit floating point, you may wish to reduce the size
3030	  of your kernel & potentially improve FP emulation performance by
3031	  saying N here.
3032
3033	  Although binutils currently supports use of this flag the details
3034	  concerning its effect upon the O32 ABI in userland are still being
3035	  worked on. In order to avoid userland becoming dependant upon current
3036	  behaviour before the details have been finalised, this option should
3037	  be considered experimental and only enabled by those working upon
3038	  said details.
3039
3040	  If unsure, say N.
3041
3042config USE_OF
3043	bool
3044	select OF
3045	select OF_EARLY_FLATTREE
3046	select IRQ_DOMAIN
3047
3048config UHI_BOOT
3049	bool
3050
3051config BUILTIN_DTB
3052	bool
3053
3054choice
3055	prompt "Kernel appended dtb support" if USE_OF
3056	default MIPS_NO_APPENDED_DTB
3057
3058	config MIPS_NO_APPENDED_DTB
3059		bool "None"
3060		help
3061		  Do not enable appended dtb support.
3062
3063	config MIPS_ELF_APPENDED_DTB
3064		bool "vmlinux"
3065		help
3066		  With this option, the boot code will look for a device tree binary
3067		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3068		  it is empty and the DTB can be appended using binutils command
3069		  objcopy:
3070
3071		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3072
3073		  This is meant as a backward compatiblity convenience for those
3074		  systems with a bootloader that can't be upgraded to accommodate
3075		  the documented boot protocol using a device tree.
3076
3077	config MIPS_RAW_APPENDED_DTB
3078		bool "vmlinux.bin or vmlinuz.bin"
3079		help
3080		  With this option, the boot code will look for a device tree binary
3081		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3082		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3083
3084		  This is meant as a backward compatibility convenience for those
3085		  systems with a bootloader that can't be upgraded to accommodate
3086		  the documented boot protocol using a device tree.
3087
3088		  Beware that there is very little in terms of protection against
3089		  this option being confused by leftover garbage in memory that might
3090		  look like a DTB header after a reboot if no actual DTB is appended
3091		  to vmlinux.bin.  Do not leave this option active in a production kernel
3092		  if you don't intend to always append a DTB.
3093endchoice
3094
3095choice
3096	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3097	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3098					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3099					 !CAVIUM_OCTEON_SOC
3100	default MIPS_CMDLINE_FROM_BOOTLOADER
3101
3102	config MIPS_CMDLINE_FROM_DTB
3103		depends on USE_OF
3104		bool "Dtb kernel arguments if available"
3105
3106	config MIPS_CMDLINE_DTB_EXTEND
3107		depends on USE_OF
3108		bool "Extend dtb kernel arguments with bootloader arguments"
3109
3110	config MIPS_CMDLINE_FROM_BOOTLOADER
3111		bool "Bootloader kernel arguments if available"
3112
3113	config MIPS_CMDLINE_BUILTIN_EXTEND
3114		depends on CMDLINE_BOOL
3115		bool "Extend builtin kernel arguments with bootloader arguments"
3116endchoice
3117
3118endmenu
3119
3120config LOCKDEP_SUPPORT
3121	bool
3122	default y
3123
3124config STACKTRACE_SUPPORT
3125	bool
3126	default y
3127
3128config PGTABLE_LEVELS
3129	int
3130	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3131	default 3 if 64BIT && !PAGE_SIZE_64KB
3132	default 2
3133
3134config MIPS_AUTO_PFN_OFFSET
3135	bool
3136
3137menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3138
3139config PCI_DRIVERS_GENERIC
3140	select PCI_DOMAINS_GENERIC if PCI
3141	bool
3142
3143config PCI_DRIVERS_LEGACY
3144	def_bool !PCI_DRIVERS_GENERIC
3145	select NO_GENERIC_PCI_IOPORT_MAP
3146	select PCI_DOMAINS if PCI
3147
3148#
3149# ISA support is now enabled via select.  Too many systems still have the one
3150# or other ISA chip on the board that users don't know about so don't expect
3151# users to choose the right thing ...
3152#
3153config ISA
3154	bool
3155
3156config TC
3157	bool "TURBOchannel support"
3158	depends on MACH_DECSTATION
3159	help
3160	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3161	  processors.  TURBOchannel programming specifications are available
3162	  at:
3163	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3164	  and:
3165	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3166	  Linux driver support status is documented at:
3167	  <http://www.linux-mips.org/wiki/DECstation>
3168
3169config MMU
3170	bool
3171	default y
3172
3173config ARCH_MMAP_RND_BITS_MIN
3174	default 12 if 64BIT
3175	default 8
3176
3177config ARCH_MMAP_RND_BITS_MAX
3178	default 18 if 64BIT
3179	default 15
3180
3181config ARCH_MMAP_RND_COMPAT_BITS_MIN
3182	default 8
3183
3184config ARCH_MMAP_RND_COMPAT_BITS_MAX
3185	default 15
3186
3187config I8253
3188	bool
3189	select CLKSRC_I8253
3190	select CLKEVT_I8253
3191	select MIPS_EXTERNAL_TIMER
3192
3193config ZONE_DMA
3194	bool
3195
3196config ZONE_DMA32
3197	bool
3198
3199endmenu
3200
3201config TRAD_SIGNALS
3202	bool
3203
3204config MIPS32_COMPAT
3205	bool
3206
3207config COMPAT
3208	bool
3209
3210config SYSVIPC_COMPAT
3211	bool
3212
3213config MIPS32_O32
3214	bool "Kernel support for o32 binaries"
3215	depends on 64BIT
3216	select ARCH_WANT_OLD_COMPAT_IPC
3217	select COMPAT
3218	select MIPS32_COMPAT
3219	select SYSVIPC_COMPAT if SYSVIPC
3220	help
3221	  Select this option if you want to run o32 binaries.  These are pure
3222	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3223	  existing binaries are in this format.
3224
3225	  If unsure, say Y.
3226
3227config MIPS32_N32
3228	bool "Kernel support for n32 binaries"
3229	depends on 64BIT
3230	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3231	select COMPAT
3232	select MIPS32_COMPAT
3233	select SYSVIPC_COMPAT if SYSVIPC
3234	help
3235	  Select this option if you want to run n32 binaries.  These are
3236	  64-bit binaries using 32-bit quantities for addressing and certain
3237	  data that would normally be 64-bit.  They are used in special
3238	  cases.
3239
3240	  If unsure, say N.
3241
3242config BINFMT_ELF32
3243	bool
3244	default y if MIPS32_O32 || MIPS32_N32
3245	select ELFCORE
3246
3247menu "Power management options"
3248
3249config ARCH_HIBERNATION_POSSIBLE
3250	def_bool y
3251	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3252
3253config ARCH_SUSPEND_POSSIBLE
3254	def_bool y
3255	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3256
3257source "kernel/power/Kconfig"
3258
3259endmenu
3260
3261config MIPS_EXTERNAL_TIMER
3262	bool
3263
3264menu "CPU Power Management"
3265
3266if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3267source "drivers/cpufreq/Kconfig"
3268endif
3269
3270source "drivers/cpuidle/Kconfig"
3271
3272endmenu
3273
3274source "drivers/firmware/Kconfig"
3275
3276source "arch/mips/kvm/Kconfig"
3277