1config MIPS
   2	bool
   3	default y
   4	select ARCH_MIGHT_HAVE_PC_PARPORT
   5	select ARCH_MIGHT_HAVE_PC_SERIO
   6	select HAVE_CONTEXT_TRACKING
   7	select HAVE_GENERIC_DMA_COHERENT
   8	select HAVE_IDE
   9	select HAVE_OPROFILE
  10	select HAVE_PERF_EVENTS
  11	select PERF_USE_VMALLOC
  12	select HAVE_ARCH_KGDB
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  13	select HAVE_ARCH_SECCOMP_FILTER
  14	select HAVE_ARCH_TRACEHOOK
  15	select ARCH_HAVE_CUSTOM_GPIO_H
  16	select HAVE_FUNCTION_TRACER
  17	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
 
 
 
 
 
  18	select HAVE_DYNAMIC_FTRACE
 
 
 
 
 
 
  19	select HAVE_FTRACE_MCOUNT_RECORD
  20	select HAVE_C_RECORDMCOUNT
  21	select HAVE_FUNCTION_GRAPH_TRACER
 
 
 
 
 
 
  22	select HAVE_KPROBES
  23	select HAVE_KRETPROBES
  24	select HAVE_DEBUG_KMEMLEAK
 
 
 
 
 
 
 
 
 
  25	select HAVE_SYSCALL_TRACEPOINTS
  26	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
  27	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
  28	select RTC_LIB if !MACH_LOONGSON
  29	select GENERIC_ATOMIC64 if !64BIT
  30	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  31	select HAVE_DMA_ATTRS
  32	select HAVE_DMA_API_DEBUG
  33	select GENERIC_IRQ_PROBE
  34	select GENERIC_IRQ_SHOW
  35	select GENERIC_PCI_IOMAP
  36	select HAVE_ARCH_JUMP_LABEL
  37	select ARCH_WANT_IPC_PARSE_VERSION
  38	select IRQ_FORCED_THREADING
  39	select HAVE_MEMBLOCK
  40	select HAVE_MEMBLOCK_NODE_MAP
  41	select ARCH_DISCARD_MEMBLOCK
  42	select GENERIC_SMP_IDLE_THREAD
  43	select BUILDTIME_EXTABLE_SORT
  44	select GENERIC_CLOCKEVENTS
  45	select GENERIC_CMOS_UPDATE
  46	select HAVE_MOD_ARCH_SPECIFIC
  47	select VIRT_TO_BUS
  48	select MODULES_USE_ELF_REL if MODULES
  49	select MODULES_USE_ELF_RELA if MODULES && 64BIT
  50	select CLONE_BACKWARDS
  51	select HAVE_DEBUG_STACKOVERFLOW
  52	select HAVE_CC_STACKPROTECTOR
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  53
  54menu "Machine selection"
  55
  56choice
  57	prompt "System type"
  58	default SGI_IP22
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  59
  60config MIPS_ALCHEMY
  61	bool "Alchemy processor based machines"
  62	select 64BIT_PHYS_ADDR
  63	select CEVT_R4K
  64	select CSRC_R4K
  65	select IRQ_CPU
  66	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
 
  67	select SYS_HAS_CPU_MIPS32_R1
  68	select SYS_SUPPORTS_32BIT_KERNEL
  69	select SYS_SUPPORTS_APM_EMULATION
  70	select ARCH_REQUIRE_GPIOLIB
  71	select SYS_SUPPORTS_ZBOOT
 
  72
  73config AR7
  74	bool "Texas Instruments AR7"
  75	select BOOT_ELF32
 
  76	select DMA_NONCOHERENT
  77	select CEVT_R4K
  78	select CSRC_R4K
  79	select IRQ_CPU
  80	select NO_EXCEPT_FILL
  81	select SWAP_IO_SPACE
  82	select SYS_HAS_CPU_MIPS32_R1
  83	select SYS_HAS_EARLY_PRINTK
  84	select SYS_SUPPORTS_32BIT_KERNEL
  85	select SYS_SUPPORTS_LITTLE_ENDIAN
 
  86	select SYS_SUPPORTS_ZBOOT_UART16550
  87	select ARCH_REQUIRE_GPIOLIB
  88	select VLYNQ
  89	select HAVE_CLK
  90	help
  91	  Support for the Texas Instruments AR7 System-on-a-Chip
  92	  family: TNETD7100, 7200 and 7300.
  93
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  94config ATH79
  95	bool "Atheros AR71XX/AR724X/AR913X based boards"
  96	select ARCH_REQUIRE_GPIOLIB
  97	select BOOT_RAW
  98	select CEVT_R4K
  99	select CSRC_R4K
 100	select DMA_NONCOHERENT
 101	select HAVE_CLK
 102	select CLKDEV_LOOKUP
 103	select IRQ_CPU
 104	select MIPS_MACHINE
 105	select SYS_HAS_CPU_MIPS32_R2
 106	select SYS_HAS_EARLY_PRINTK
 107	select SYS_SUPPORTS_32BIT_KERNEL
 108	select SYS_SUPPORTS_BIG_ENDIAN
 
 
 
 
 109	help
 110	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
 111
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 112config BCM47XX
 113	bool "Broadcom BCM47XX based boards"
 114	select ARCH_WANT_OPTIONAL_GPIOLIB
 115	select BOOT_RAW
 116	select CEVT_R4K
 117	select CSRC_R4K
 118	select DMA_NONCOHERENT
 119	select HW_HAS_PCI
 120	select IRQ_CPU
 121	select SYS_HAS_CPU_MIPS32_R1
 122	select NO_EXCEPT_FILL
 123	select SYS_SUPPORTS_32BIT_KERNEL
 124	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 
 125	select SYS_HAS_EARLY_PRINTK
 126	select USE_GENERIC_EARLY_PRINTK_8250
 
 
 
 
 
 127	help
 128	 Support for BCM47XX based boards
 129
 130config BCM63XX
 131	bool "Broadcom BCM63XX based boards"
 132	select BOOT_RAW
 133	select CEVT_R4K
 134	select CSRC_R4K
 
 135	select DMA_NONCOHERENT
 136	select IRQ_CPU
 137	select SYS_SUPPORTS_32BIT_KERNEL
 138	select SYS_SUPPORTS_BIG_ENDIAN
 139	select SYS_HAS_EARLY_PRINTK
 
 
 
 140	select SWAP_IO_SPACE
 141	select ARCH_REQUIRE_GPIOLIB
 142	select HAVE_CLK
 143	select MIPS_L1_CACHE_SHIFT_4
 
 144	help
 145	 Support for BCM63XX based boards
 146
 147config MIPS_COBALT
 148	bool "Cobalt Server"
 149	select CEVT_R4K
 150	select CSRC_R4K
 151	select CEVT_GT641XX
 152	select DMA_NONCOHERENT
 153	select HW_HAS_PCI
 154	select I8253
 155	select I8259
 156	select IRQ_CPU
 157	select IRQ_GT641XX
 158	select PCI_GT64XXX_PCI0
 159	select PCI
 160	select SYS_HAS_CPU_NEVADA
 161	select SYS_HAS_EARLY_PRINTK
 162	select SYS_SUPPORTS_32BIT_KERNEL
 163	select SYS_SUPPORTS_64BIT_KERNEL
 164	select SYS_SUPPORTS_LITTLE_ENDIAN
 165	select USE_GENERIC_EARLY_PRINTK_8250
 166
 167config MACH_DECSTATION
 168	bool "DECstations"
 169	select BOOT_ELF32
 170	select CEVT_DS1287
 171	select CEVT_R4K
 172	select CSRC_IOASIC
 173	select CSRC_R4K
 174	select CPU_DADDI_WORKAROUNDS if 64BIT
 175	select CPU_R4000_WORKAROUNDS if 64BIT
 176	select CPU_R4400_WORKAROUNDS if 64BIT
 177	select DMA_NONCOHERENT
 178	select NO_IOPORT_MAP
 179	select IRQ_CPU
 180	select SYS_HAS_CPU_R3000
 181	select SYS_HAS_CPU_R4X00
 182	select SYS_SUPPORTS_32BIT_KERNEL
 183	select SYS_SUPPORTS_64BIT_KERNEL
 184	select SYS_SUPPORTS_LITTLE_ENDIAN
 185	select SYS_SUPPORTS_128HZ
 186	select SYS_SUPPORTS_256HZ
 187	select SYS_SUPPORTS_1024HZ
 188	select MIPS_L1_CACHE_SHIFT_4
 189	help
 190	  This enables support for DEC's MIPS based workstations.  For details
 191	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
 192	  DECstation porting pages on <http://decstation.unix-ag.org/>.
 193
 194	  If you have one of the following DECstation Models you definitely
 195	  want to choose R4xx0 for the CPU Type:
 196
 197		DECstation 5000/50
 198		DECstation 5000/150
 199		DECstation 5000/260
 200		DECsystem 5900/260
 201
 202	  otherwise choose R3000.
 203
 204config MACH_JAZZ
 205	bool "Jazz family of machines"
 
 
 
 
 
 206	select FW_ARC
 207	select FW_ARC32
 208	select ARCH_MAY_HAVE_PC_FDC
 209	select CEVT_R4K
 210	select CSRC_R4K
 211	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 212	select GENERIC_ISA_DMA
 213	select HAVE_PCSPKR_PLATFORM
 214	select IRQ_CPU
 215	select I8253
 216	select I8259
 217	select ISA
 218	select SYS_HAS_CPU_R4X00
 219	select SYS_SUPPORTS_32BIT_KERNEL
 220	select SYS_SUPPORTS_64BIT_KERNEL
 221	select SYS_SUPPORTS_100HZ
 222	help
 223	 This a family of machines based on the MIPS R4030 chipset which was
 224	 used by several vendors to build RISC/os and Windows NT workstations.
 225	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
 226	 Olivetti M700-10 workstations.
 227
 228config MACH_JZ4740
 229	bool "Ingenic JZ4740 based machines"
 230	select SYS_HAS_CPU_MIPS32_R1
 231	select SYS_SUPPORTS_32BIT_KERNEL
 232	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 
 
 
 
 
 
 
 
 
 233	select SYS_SUPPORTS_ZBOOT_UART16550
 234	select DMA_NONCOHERENT
 235	select IRQ_CPU
 236	select ARCH_REQUIRE_GPIOLIB
 237	select SYS_HAS_EARLY_PRINTK
 238	select HAVE_CLK
 239	select GENERIC_IRQ_CHIP
 240
 241config LANTIQ
 242	bool "Lantiq based platforms"
 243	select DMA_NONCOHERENT
 244	select IRQ_CPU
 245	select CEVT_R4K
 246	select CSRC_R4K
 247	select SYS_HAS_CPU_MIPS32_R1
 248	select SYS_HAS_CPU_MIPS32_R2
 249	select SYS_SUPPORTS_BIG_ENDIAN
 250	select SYS_SUPPORTS_32BIT_KERNEL
 
 251	select SYS_SUPPORTS_MULTITHREADING
 
 252	select SYS_HAS_EARLY_PRINTK
 253	select ARCH_REQUIRE_GPIOLIB
 254	select SWAP_IO_SPACE
 255	select BOOT_RAW
 256	select HAVE_MACH_CLKDEV
 257	select CLKDEV_LOOKUP
 258	select USE_OF
 259	select PINCTRL
 260	select PINCTRL_LANTIQ
 
 
 261
 262config LASAT
 263	bool "LASAT Networks platforms"
 264	select CEVT_R4K
 265	select CSRC_R4K
 266	select DMA_NONCOHERENT
 267	select SYS_HAS_EARLY_PRINTK
 268	select HW_HAS_PCI
 269	select IRQ_CPU
 270	select PCI_GT64XXX_PCI0
 271	select MIPS_NILE4
 272	select R5000_CPU_SCACHE
 273	select SYS_HAS_CPU_R5000
 274	select SYS_SUPPORTS_32BIT_KERNEL
 275	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
 276	select SYS_SUPPORTS_LITTLE_ENDIAN
 277
 278config MACH_LOONGSON
 279	bool "Loongson family of machines"
 280	select SYS_SUPPORTS_ZBOOT
 281	help
 282	  This enables the support of Loongson family of machines.
 283
 284	  Loongson is a family of general-purpose MIPS-compatible CPUs.
 285	  developed at Institute of Computing Technology (ICT),
 286	  Chinese Academy of Sciences (CAS) in the People's Republic
 287	  of China. The chief architect is Professor Weiwu Hu.
 288
 289config MACH_LOONGSON1
 290	bool "Loongson 1 family of machines"
 291	select SYS_SUPPORTS_ZBOOT
 292	help
 293	  This enables support for the Loongson 1 based machines.
 294
 295	  Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
 296	  the ICT (Institute of Computing Technology) and the Chinese Academy
 297	  of Sciences.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 298
 299config MIPS_MALTA
 300	bool "MIPS Malta board"
 301	select ARCH_MAY_HAVE_PC_FDC
 
 
 302	select BOOT_ELF32
 303	select BOOT_RAW
 
 304	select CEVT_R4K
 
 
 305	select CSRC_R4K
 306	select CSRC_GIC
 307	select DMA_MAYBE_COHERENT
 308	select GENERIC_ISA_DMA
 309	select HAVE_PCSPKR_PLATFORM
 310	select IRQ_CPU
 311	select IRQ_GIC
 312	select HW_HAS_PCI
 313	select I8253
 314	select I8259
 
 315	select MIPS_BONITO64
 316	select MIPS_CPU_SCACHE
 317	select PCI_GT64XXX_PCI0
 
 318	select MIPS_MSC
 
 
 319	select SWAP_IO_SPACE
 320	select SYS_HAS_CPU_MIPS32_R1
 321	select SYS_HAS_CPU_MIPS32_R2
 322	select SYS_HAS_CPU_MIPS32_R3_5
 
 
 323	select SYS_HAS_CPU_MIPS64_R1
 324	select SYS_HAS_CPU_MIPS64_R2
 
 325	select SYS_HAS_CPU_NEVADA
 326	select SYS_HAS_CPU_RM7000
 327	select SYS_SUPPORTS_32BIT_KERNEL
 328	select SYS_SUPPORTS_64BIT_KERNEL
 329	select SYS_SUPPORTS_BIG_ENDIAN
 
 330	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 
 331	select SYS_SUPPORTS_MIPS_CMP
 332	select SYS_SUPPORTS_MIPS_CPS
 333	select SYS_SUPPORTS_MULTITHREADING
 
 334	select SYS_SUPPORTS_SMARTMIPS
 
 335	select SYS_SUPPORTS_ZBOOT
 336	help
 337	  This enables support for the MIPS Technologies Malta evaluation
 338	  board.
 339
 340config MIPS_SEAD3
 341	bool "MIPS SEAD3 board"
 342	select BOOT_ELF32
 343	select BOOT_RAW
 344	select CEVT_R4K
 345	select CSRC_R4K
 346	select CSRC_GIC
 347	select CPU_MIPSR2_IRQ_VI
 348	select CPU_MIPSR2_IRQ_EI
 349	select DMA_NONCOHERENT
 350	select IRQ_CPU
 351	select IRQ_GIC
 352	select LIBFDT
 353	select MIPS_MSC
 354	select SYS_HAS_CPU_MIPS32_R1
 355	select SYS_HAS_CPU_MIPS32_R2
 356	select SYS_HAS_CPU_MIPS64_R1
 357	select SYS_HAS_EARLY_PRINTK
 358	select SYS_SUPPORTS_32BIT_KERNEL
 359	select SYS_SUPPORTS_64BIT_KERNEL
 360	select SYS_SUPPORTS_BIG_ENDIAN
 361	select SYS_SUPPORTS_LITTLE_ENDIAN
 362	select SYS_SUPPORTS_SMARTMIPS
 363	select SYS_SUPPORTS_MICROMIPS
 364	select USB_EHCI_BIG_ENDIAN_DESC
 365	select USB_EHCI_BIG_ENDIAN_MMIO
 366	select USE_OF
 
 
 367	help
 368	  This enables support for the MIPS Technologies SEAD3 evaluation
 369	  board.
 370
 371config NEC_MARKEINS
 372	bool "NEC EMMA2RH Mark-eins board"
 373	select SOC_EMMA2RH
 374	select HW_HAS_PCI
 375	help
 376	  This enables support for the NEC Electronics Mark-eins boards.
 377
 378config MACH_VR41XX
 379	bool "NEC VR4100 series based machines"
 380	select CEVT_R4K
 381	select CSRC_R4K
 382	select SYS_HAS_CPU_VR41XX
 383	select ARCH_REQUIRE_GPIOLIB
 384
 385config NXP_STB220
 386	bool "NXP STB220 board"
 387	select SOC_PNX833X
 388	help
 389	 Support for NXP Semiconductors STB220 Development Board.
 390
 391config NXP_STB225
 392	bool "NXP 225 board"
 393	select SOC_PNX833X
 394	select SOC_PNX8335
 395	help
 396	 Support for NXP Semiconductors STB225 Development Board.
 397
 398config PMC_MSP
 399	bool "PMC-Sierra MSP chipsets"
 400	select CEVT_R4K
 401	select CSRC_R4K
 402	select DMA_NONCOHERENT
 403	select SWAP_IO_SPACE
 404	select NO_EXCEPT_FILL
 405	select BOOT_RAW
 406	select SYS_HAS_CPU_MIPS32_R1
 407	select SYS_HAS_CPU_MIPS32_R2
 408	select SYS_SUPPORTS_32BIT_KERNEL
 409	select SYS_SUPPORTS_BIG_ENDIAN
 410	select IRQ_CPU
 411	select SERIAL_8250
 412	select SERIAL_8250_CONSOLE
 413	select USB_EHCI_BIG_ENDIAN_MMIO
 414	select USB_EHCI_BIG_ENDIAN_DESC
 415	help
 416	  This adds support for the PMC-Sierra family of Multi-Service
 417	  Processor System-On-A-Chips.  These parts include a number
 418	  of integrated peripherals, interfaces and DSPs in addition to
 419	  a variety of MIPS cores.
 420
 421config RALINK
 422	bool "Ralink based machines"
 423	select CEVT_R4K
 
 424	select CSRC_R4K
 425	select BOOT_RAW
 426	select DMA_NONCOHERENT
 427	select IRQ_CPU
 428	select USE_OF
 429	select SYS_HAS_CPU_MIPS32_R1
 430	select SYS_HAS_CPU_MIPS32_R2
 431	select SYS_SUPPORTS_32BIT_KERNEL
 432	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 
 433	select SYS_HAS_EARLY_PRINTK
 434	select HAVE_MACH_CLKDEV
 435	select CLKDEV_LOOKUP
 436	select ARCH_HAS_RESET_CONTROLLER
 437	select RESET_CONTROLLER
 438
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 439config SGI_IP22
 440	bool "SGI IP22 (Indy/Indigo2)"
 
 
 441	select FW_ARC
 442	select FW_ARC32
 
 443	select BOOT_ELF32
 444	select CEVT_R4K
 445	select CSRC_R4K
 446	select DEFAULT_SGI_PARTITION
 447	select DMA_NONCOHERENT
 448	select HW_HAS_EISA
 449	select I8253
 450	select I8259
 451	select IP22_CPU_SCACHE
 452	select IRQ_CPU
 453	select GENERIC_ISA_DMA_SUPPORT_BROKEN
 454	select SGI_HAS_I8042
 455	select SGI_HAS_INDYDOG
 456	select SGI_HAS_HAL2
 457	select SGI_HAS_SEEQ
 458	select SGI_HAS_WD93
 459	select SGI_HAS_ZILOG
 460	select SWAP_IO_SPACE
 461	select SYS_HAS_CPU_R4X00
 462	select SYS_HAS_CPU_R5000
 463	#
 464	# Disable EARLY_PRINTK for now since it leads to overwritten prom
 465	# memory during early boot on some machines.
 466	#
 467	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
 468	# for a more details discussion
 469	#
 470	# select SYS_HAS_EARLY_PRINTK
 471	select SYS_SUPPORTS_32BIT_KERNEL
 472	select SYS_SUPPORTS_64BIT_KERNEL
 473	select SYS_SUPPORTS_BIG_ENDIAN
 
 
 
 474	select MIPS_L1_CACHE_SHIFT_7
 475	help
 476	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
 477	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
 478	  that runs on these, say Y here.
 479
 480config SGI_IP27
 481	bool "SGI IP27 (Origin200/2000)"
 
 
 482	select FW_ARC
 483	select FW_ARC64
 
 484	select BOOT_ELF64
 485	select DEFAULT_SGI_PARTITION
 486	select DMA_COHERENT
 487	select SYS_HAS_EARLY_PRINTK
 488	select HW_HAS_PCI
 
 
 489	select NR_CPUS_DEFAULT_64
 
 
 490	select SYS_HAS_CPU_R10000
 491	select SYS_SUPPORTS_64BIT_KERNEL
 492	select SYS_SUPPORTS_BIG_ENDIAN
 493	select SYS_SUPPORTS_NUMA
 494	select SYS_SUPPORTS_SMP
 
 495	select MIPS_L1_CACHE_SHIFT_7
 
 
 496	help
 497	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
 498	  workstations.  To compile a Linux kernel that runs on these, say Y
 499	  here.
 500
 501config SGI_IP28
 502	bool "SGI IP28 (Indigo2 R10k)"
 
 
 503	select FW_ARC
 504	select FW_ARC64
 
 505	select BOOT_ELF64
 506	select CEVT_R4K
 507	select CSRC_R4K
 508	select DEFAULT_SGI_PARTITION
 509	select DMA_NONCOHERENT
 510	select GENERIC_ISA_DMA_SUPPORT_BROKEN
 511	select IRQ_CPU
 512	select HW_HAS_EISA
 513	select I8253
 514	select I8259
 515	select SGI_HAS_I8042
 516	select SGI_HAS_INDYDOG
 517	select SGI_HAS_HAL2
 518	select SGI_HAS_SEEQ
 519	select SGI_HAS_WD93
 520	select SGI_HAS_ZILOG
 521	select SWAP_IO_SPACE
 522	select SYS_HAS_CPU_R10000
 523	#
 524	# Disable EARLY_PRINTK for now since it leads to overwritten prom
 525	# memory during early boot on some machines.
 526	#
 527	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
 528	# for a more details discussion
 529	#
 530	# select SYS_HAS_EARLY_PRINTK
 531	select SYS_SUPPORTS_64BIT_KERNEL
 532	select SYS_SUPPORTS_BIG_ENDIAN
 533      help
 534        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
 535        kernel that runs on these, say Y here.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 536
 537config SGI_IP32
 538	bool "SGI IP32 (O2)"
 
 
 
 539	select FW_ARC
 540	select FW_ARC32
 541	select BOOT_ELF32
 542	select CEVT_R4K
 543	select CSRC_R4K
 544	select DMA_NONCOHERENT
 545	select HW_HAS_PCI
 546	select IRQ_CPU
 547	select R5000_CPU_SCACHE
 548	select RM7000_CPU_SCACHE
 549	select SYS_HAS_CPU_R5000
 550	select SYS_HAS_CPU_R10000 if BROKEN
 551	select SYS_HAS_CPU_RM7000
 552	select SYS_HAS_CPU_NEVADA
 553	select SYS_SUPPORTS_64BIT_KERNEL
 554	select SYS_SUPPORTS_BIG_ENDIAN
 
 555	help
 556	  If you want this kernel to run on SGI O2 workstation, say Y here.
 557
 558config SIBYTE_CRHINE
 559	bool "Sibyte BCM91120C-CRhine"
 560	select BOOT_ELF32
 561	select DMA_COHERENT
 562	select SIBYTE_BCM1120
 563	select SWAP_IO_SPACE
 564	select SYS_HAS_CPU_SB1
 565	select SYS_SUPPORTS_BIG_ENDIAN
 566	select SYS_SUPPORTS_LITTLE_ENDIAN
 567
 568config SIBYTE_CARMEL
 569	bool "Sibyte BCM91120x-Carmel"
 570	select BOOT_ELF32
 571	select DMA_COHERENT
 572	select SIBYTE_BCM1120
 573	select SWAP_IO_SPACE
 574	select SYS_HAS_CPU_SB1
 575	select SYS_SUPPORTS_BIG_ENDIAN
 576	select SYS_SUPPORTS_LITTLE_ENDIAN
 577
 578config SIBYTE_CRHONE
 579	bool "Sibyte BCM91125C-CRhone"
 580	select BOOT_ELF32
 581	select DMA_COHERENT
 582	select SIBYTE_BCM1125
 583	select SWAP_IO_SPACE
 584	select SYS_HAS_CPU_SB1
 585	select SYS_SUPPORTS_BIG_ENDIAN
 586	select SYS_SUPPORTS_HIGHMEM
 587	select SYS_SUPPORTS_LITTLE_ENDIAN
 588
 589config SIBYTE_RHONE
 590	bool "Sibyte BCM91125E-Rhone"
 591	select BOOT_ELF32
 592	select DMA_COHERENT
 593	select SIBYTE_BCM1125H
 594	select SWAP_IO_SPACE
 595	select SYS_HAS_CPU_SB1
 596	select SYS_SUPPORTS_BIG_ENDIAN
 597	select SYS_SUPPORTS_LITTLE_ENDIAN
 598
 599config SIBYTE_SWARM
 600	bool "Sibyte BCM91250A-SWARM"
 601	select BOOT_ELF32
 602	select DMA_COHERENT
 603	select HAVE_PATA_PLATFORM
 604	select SIBYTE_SB1250
 605	select SWAP_IO_SPACE
 606	select SYS_HAS_CPU_SB1
 607	select SYS_SUPPORTS_BIG_ENDIAN
 608	select SYS_SUPPORTS_HIGHMEM
 609	select SYS_SUPPORTS_LITTLE_ENDIAN
 610	select ZONE_DMA32 if 64BIT
 
 611
 612config SIBYTE_LITTLESUR
 613	bool "Sibyte BCM91250C2-LittleSur"
 614	select BOOT_ELF32
 615	select DMA_COHERENT
 616	select HAVE_PATA_PLATFORM
 617	select SIBYTE_SB1250
 618	select SWAP_IO_SPACE
 619	select SYS_HAS_CPU_SB1
 620	select SYS_SUPPORTS_BIG_ENDIAN
 621	select SYS_SUPPORTS_HIGHMEM
 622	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 623
 624config SIBYTE_SENTOSA
 625	bool "Sibyte BCM91250E-Sentosa"
 626	select BOOT_ELF32
 627	select DMA_COHERENT
 628	select SIBYTE_SB1250
 629	select SWAP_IO_SPACE
 630	select SYS_HAS_CPU_SB1
 631	select SYS_SUPPORTS_BIG_ENDIAN
 632	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 633
 634config SIBYTE_BIGSUR
 635	bool "Sibyte BCM91480B-BigSur"
 636	select BOOT_ELF32
 637	select DMA_COHERENT
 638	select NR_CPUS_DEFAULT_4
 639	select SIBYTE_BCM1x80
 640	select SWAP_IO_SPACE
 641	select SYS_HAS_CPU_SB1
 642	select SYS_SUPPORTS_BIG_ENDIAN
 643	select SYS_SUPPORTS_HIGHMEM
 644	select SYS_SUPPORTS_LITTLE_ENDIAN
 645	select ZONE_DMA32 if 64BIT
 
 646
 647config SNI_RM
 648	bool "SNI RM200/300/400"
 
 
 649	select FW_ARC if CPU_LITTLE_ENDIAN
 650	select FW_ARC32 if CPU_LITTLE_ENDIAN
 651	select FW_SNIPROM if CPU_BIG_ENDIAN
 652	select ARCH_MAY_HAVE_PC_FDC
 
 
 653	select BOOT_ELF32
 654	select CEVT_R4K
 655	select CSRC_R4K
 656	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 657	select DMA_NONCOHERENT
 658	select GENERIC_ISA_DMA
 
 659	select HAVE_PCSPKR_PLATFORM
 660	select HW_HAS_EISA
 661	select HW_HAS_PCI
 662	select IRQ_CPU
 663	select I8253
 664	select I8259
 665	select ISA
 
 666	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
 667	select SYS_HAS_CPU_R4X00
 668	select SYS_HAS_CPU_R5000
 669	select SYS_HAS_CPU_R10000
 670	select R5000_CPU_SCACHE
 671	select SYS_HAS_EARLY_PRINTK
 672	select SYS_SUPPORTS_32BIT_KERNEL
 673	select SYS_SUPPORTS_64BIT_KERNEL
 674	select SYS_SUPPORTS_BIG_ENDIAN
 675	select SYS_SUPPORTS_HIGHMEM
 676	select SYS_SUPPORTS_LITTLE_ENDIAN
 677	select USE_GENERIC_EARLY_PRINTK_8250
 678	help
 679	  The SNI RM200/300/400 are MIPS-based machines manufactured by
 680	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
 681	  Technology and now in turn merged with Fujitsu.  Say Y here to
 682	  support this machine type.
 683
 684config MACH_TX39XX
 685	bool "Toshiba TX39 series based machines"
 686
 687config MACH_TX49XX
 688	bool "Toshiba TX49 series based machines"
 
 689
 690config MIKROTIK_RB532
 691	bool "Mikrotik RB532 boards"
 692	select CEVT_R4K
 693	select CSRC_R4K
 694	select DMA_NONCOHERENT
 695	select HW_HAS_PCI
 696	select IRQ_CPU
 697	select SYS_HAS_CPU_MIPS32_R1
 698	select SYS_SUPPORTS_32BIT_KERNEL
 699	select SYS_SUPPORTS_LITTLE_ENDIAN
 700	select SWAP_IO_SPACE
 701	select BOOT_RAW
 702	select ARCH_REQUIRE_GPIOLIB
 703	select MIPS_L1_CACHE_SHIFT_4
 704	help
 705	  Support the Mikrotik(tm) RouterBoard 532 series,
 706	  based on the IDT RC32434 SoC.
 707
 708config CAVIUM_OCTEON_SOC
 709	bool "Cavium Networks Octeon SoC based boards"
 710	select CEVT_R4K
 711	select 64BIT_PHYS_ADDR
 712	select DMA_COHERENT
 
 713	select SYS_SUPPORTS_64BIT_KERNEL
 714	select SYS_SUPPORTS_BIG_ENDIAN
 715	select EDAC_SUPPORT
 716	select SYS_SUPPORTS_HOTPLUG_CPU
 
 
 717	select SYS_HAS_EARLY_PRINTK
 718	select SYS_HAS_CPU_CAVIUM_OCTEON
 719	select SWAP_IO_SPACE
 720	select HW_HAS_PCI
 
 
 721	select ZONE_DMA32
 722	select HOLES_IN_ZONE
 723	select ARCH_REQUIRE_GPIOLIB
 
 
 
 
 
 
 
 
 
 724	help
 725	  This option supports all of the Octeon reference boards from Cavium
 726	  Networks. It builds a kernel that dynamically determines the Octeon
 727	  CPU type and supports all known board reference implementations.
 728	  Some of the supported boards are:
 729		EBT3000
 730		EBH3000
 731		EBH3100
 732		Thunder
 733		Kodama
 734		Hikari
 735	  Say Y here for most Octeon reference boards.
 736
 737config NLM_XLR_BOARD
 738	bool "Netlogic XLR/XLS based systems"
 739	select BOOT_ELF32
 740	select NLM_COMMON
 741	select SYS_HAS_CPU_XLR
 742	select SYS_SUPPORTS_SMP
 743	select HW_HAS_PCI
 744	select SWAP_IO_SPACE
 745	select SYS_SUPPORTS_32BIT_KERNEL
 746	select SYS_SUPPORTS_64BIT_KERNEL
 747	select 64BIT_PHYS_ADDR
 748	select SYS_SUPPORTS_BIG_ENDIAN
 749	select SYS_SUPPORTS_HIGHMEM
 750	select DMA_COHERENT
 751	select NR_CPUS_DEFAULT_32
 752	select CEVT_R4K
 753	select CSRC_R4K
 754	select IRQ_CPU
 755	select ZONE_DMA32 if 64BIT
 756	select SYNC_R4K
 757	select SYS_HAS_EARLY_PRINTK
 758	select SYS_SUPPORTS_ZBOOT
 759	select SYS_SUPPORTS_ZBOOT_UART16550
 760	help
 761	  Support for systems based on Netlogic XLR and XLS processors.
 762	  Say Y here if you have a XLR or XLS based board.
 763
 764config NLM_XLP_BOARD
 765	bool "Netlogic XLP based systems"
 766	select BOOT_ELF32
 767	select NLM_COMMON
 768	select SYS_HAS_CPU_XLP
 769	select SYS_SUPPORTS_SMP
 770	select HW_HAS_PCI
 771	select SYS_SUPPORTS_32BIT_KERNEL
 772	select SYS_SUPPORTS_64BIT_KERNEL
 773	select 64BIT_PHYS_ADDR
 774	select SYS_SUPPORTS_BIG_ENDIAN
 775	select SYS_SUPPORTS_LITTLE_ENDIAN
 776	select SYS_SUPPORTS_HIGHMEM
 777	select DMA_COHERENT
 778	select NR_CPUS_DEFAULT_32
 779	select CEVT_R4K
 780	select CSRC_R4K
 781	select IRQ_CPU
 782	select ZONE_DMA32 if 64BIT
 783	select SYNC_R4K
 784	select SYS_HAS_EARLY_PRINTK
 785	select USE_OF
 786	select SYS_SUPPORTS_ZBOOT
 787	select SYS_SUPPORTS_ZBOOT_UART16550
 788	help
 789	  This board is based on Netlogic XLP Processor.
 790	  Say Y here if you have a XLP based board.
 791
 792endchoice
 793
 794source "arch/mips/alchemy/Kconfig"
 
 795source "arch/mips/ath79/Kconfig"
 796source "arch/mips/bcm47xx/Kconfig"
 797source "arch/mips/bcm63xx/Kconfig"
 
 
 
 798source "arch/mips/jazz/Kconfig"
 799source "arch/mips/jz4740/Kconfig"
 800source "arch/mips/lantiq/Kconfig"
 801source "arch/mips/lasat/Kconfig"
 802source "arch/mips/pmcs-msp71xx/Kconfig"
 803source "arch/mips/ralink/Kconfig"
 804source "arch/mips/sgi-ip27/Kconfig"
 805source "arch/mips/sibyte/Kconfig"
 806source "arch/mips/txx9/Kconfig"
 807source "arch/mips/vr41xx/Kconfig"
 808source "arch/mips/cavium-octeon/Kconfig"
 809source "arch/mips/loongson/Kconfig"
 810source "arch/mips/loongson1/Kconfig"
 811source "arch/mips/netlogic/Kconfig"
 812
 813endmenu
 814
 815config RWSEM_GENERIC_SPINLOCK
 816	bool
 817	default y
 818
 819config RWSEM_XCHGADD_ALGORITHM
 820	bool
 821
 822config ARCH_HAS_ILOG2_U32
 823	bool
 824	default n
 825
 826config ARCH_HAS_ILOG2_U64
 827	bool
 828	default n
 829
 830config GENERIC_HWEIGHT
 831	bool
 832	default y
 833
 834config GENERIC_CALIBRATE_DELAY
 835	bool
 836	default y
 837
 838config SCHED_OMIT_FRAME_POINTER
 839	bool
 840	default y
 841
 842#
 843# Select some configuration options automatically based on user selections.
 844#
 845config FW_ARC
 846	bool
 847
 848config ARCH_MAY_HAVE_PC_FDC
 849	bool
 850
 851config BOOT_RAW
 852	bool
 853
 854config CEVT_BCM1480
 855	bool
 856
 857config CEVT_DS1287
 858	bool
 859
 860config CEVT_GT641XX
 861	bool
 862
 863config CEVT_R4K
 864	bool
 865
 866config CEVT_GIC
 867	select MIPS_CM
 868	bool
 869
 870config CEVT_SB1250
 871	bool
 872
 873config CEVT_TXX9
 874	bool
 875
 876config CSRC_BCM1480
 877	bool
 878
 879config CSRC_IOASIC
 880	bool
 881
 882config CSRC_R4K
 883	bool
 884
 885config CSRC_GIC
 886	select MIPS_CM
 887	bool
 888
 889config CSRC_SB1250
 890	bool
 891
 
 
 
 892config GPIO_TXX9
 893	select ARCH_REQUIRE_GPIOLIB
 894	bool
 895
 896config FW_CFE
 897	bool
 898
 899config ARCH_DMA_ADDR_T_64BIT
 900	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
 901
 902config DMA_MAYBE_COHERENT
 903	select DMA_NONCOHERENT
 904	bool
 905
 906config DMA_COHERENT
 907	bool
 
 
 908
 909config DMA_NONCOHERENT
 910	bool
 
 
 
 
 
 
 
 
 
 
 
 
 911	select NEED_DMA_MAP_STATE
 912
 913config NEED_DMA_MAP_STATE
 914	bool
 915
 916config SYS_HAS_EARLY_PRINTK
 917	bool
 918
 919config HOTPLUG_CPU
 920	bool "Support for hot-pluggable CPUs"
 921	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
 922	help
 923	  Say Y here to allow turning CPUs off and on. CPUs can be
 924	  controlled through /sys/devices/system/cpu.
 925	  (Note: power management support will enable this option
 926	    automatically on SMP systems. )
 927	  Say N if you want to disable CPU hotplug.
 928
 929config SYS_SUPPORTS_HOTPLUG_CPU
 930	bool
 931
 932config I8259
 933	bool
 934
 935config MIPS_BONITO64
 936	bool
 937
 938config MIPS_MSC
 939	bool
 940
 941config MIPS_NILE4
 942	bool
 943
 944config SYNC_R4K
 945	bool
 946
 947config MIPS_MACHINE
 948	def_bool n
 949
 950config NO_IOPORT_MAP
 951	def_bool n
 952
 
 
 
 953config GENERIC_ISA_DMA
 954	bool
 955	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
 956	select ISA_DMA_API
 957
 958config GENERIC_ISA_DMA_SUPPORT_BROKEN
 959	bool
 960	select GENERIC_ISA_DMA
 961
 
 
 
 
 
 
 
 
 
 962config ISA_DMA_API
 963	bool
 964
 965config HOLES_IN_ZONE
 966	bool
 
 
 
 
 967
 968#
 969# Endianness selection.  Sufficiently obscure so many users don't know what to
 970# answer,so we try hard to limit the available choices.  Also the use of a
 971# choice statement should be more obvious to the user.
 972#
 973choice
 974	prompt "Endianness selection"
 975	help
 976	  Some MIPS machines can be configured for either little or big endian
 977	  byte order. These modes require different kernels and a different
 978	  Linux distribution.  In general there is one preferred byteorder for a
 979	  particular system but some systems are just as commonly used in the
 980	  one or the other endianness.
 981
 982config CPU_BIG_ENDIAN
 983	bool "Big endian"
 984	depends on SYS_SUPPORTS_BIG_ENDIAN
 985
 986config CPU_LITTLE_ENDIAN
 987	bool "Little endian"
 988	depends on SYS_SUPPORTS_LITTLE_ENDIAN
 989
 990endchoice
 991
 992config EXPORT_UASM
 993	bool
 994
 995config SYS_SUPPORTS_APM_EMULATION
 996	bool
 997
 998config SYS_SUPPORTS_BIG_ENDIAN
 999	bool
1000
1001config SYS_SUPPORTS_LITTLE_ENDIAN
1002	bool
1003
1004config SYS_SUPPORTS_HUGETLBFS
1005	bool
1006	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1007	default y
1008
1009config MIPS_HUGE_TLB_SUPPORT
1010	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1011
1012config IRQ_CPU
1013	bool
1014
1015config IRQ_CPU_RM7K
1016	bool
1017
1018config IRQ_MSP_SLP
1019	bool
1020
1021config IRQ_MSP_CIC
1022	bool
1023
1024config IRQ_TXX9
1025	bool
1026
1027config IRQ_GT641XX
1028	bool
1029
1030config IRQ_GIC
1031	select MIPS_CM
1032	bool
1033
1034config PCI_GT64XXX_PCI0
1035	bool
1036
1037config NO_EXCEPT_FILL
1038	bool
1039
1040config SOC_EMMA2RH
1041	bool
1042	select CEVT_R4K
1043	select CSRC_R4K
1044	select DMA_NONCOHERENT
1045	select IRQ_CPU
1046	select SWAP_IO_SPACE
1047	select SYS_HAS_CPU_R5500
1048	select SYS_SUPPORTS_32BIT_KERNEL
1049	select SYS_SUPPORTS_64BIT_KERNEL
1050	select SYS_SUPPORTS_BIG_ENDIAN
1051
1052config SOC_PNX833X
1053	bool
1054	select CEVT_R4K
1055	select CSRC_R4K
1056	select IRQ_CPU
1057	select DMA_NONCOHERENT
1058	select SYS_HAS_CPU_MIPS32_R2
1059	select SYS_SUPPORTS_32BIT_KERNEL
1060	select SYS_SUPPORTS_LITTLE_ENDIAN
1061	select SYS_SUPPORTS_BIG_ENDIAN
1062	select CPU_MIPSR2_IRQ_VI
1063
1064config SOC_PNX8335
1065	bool
1066	select SOC_PNX833X
1067
1068config SWAP_IO_SPACE
1069	bool
1070
1071config SGI_HAS_INDYDOG
1072	bool
1073
1074config SGI_HAS_HAL2
1075	bool
1076
1077config SGI_HAS_SEEQ
1078	bool
1079
1080config SGI_HAS_WD93
1081	bool
1082
1083config SGI_HAS_ZILOG
1084	bool
1085
1086config SGI_HAS_I8042
1087	bool
1088
1089config DEFAULT_SGI_PARTITION
1090	bool
1091
1092config FW_ARC32
1093	bool
1094
1095config FW_SNIPROM
1096	bool
1097
1098config BOOT_ELF32
1099	bool
1100
1101config MIPS_L1_CACHE_SHIFT_4
1102	bool
1103
1104config MIPS_L1_CACHE_SHIFT_5
1105	bool
1106
1107config MIPS_L1_CACHE_SHIFT_6
1108	bool
1109
1110config MIPS_L1_CACHE_SHIFT_7
1111	bool
1112
1113config MIPS_L1_CACHE_SHIFT
1114	int
1115	default "4" if MIPS_L1_CACHE_SHIFT_4
1116	default "5" if MIPS_L1_CACHE_SHIFT_5
1117	default "6" if MIPS_L1_CACHE_SHIFT_6
1118	default "7" if MIPS_L1_CACHE_SHIFT_7
 
 
 
1119	default "5"
1120
1121config HAVE_STD_PC_SERIAL_PORT
1122	bool
1123
1124config ARC_CONSOLE
1125	bool "ARC console support"
1126	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1127
1128config ARC_MEMORY
1129	bool
1130	depends on MACH_JAZZ || SNI_RM || SGI_IP32
1131	default y
1132
1133config ARC_PROMLIB
1134	bool
1135	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1136	default y
1137
1138config FW_ARC64
1139	bool
1140
1141config BOOT_ELF64
1142	bool
1143
1144menu "CPU selection"
1145
1146choice
1147	prompt "CPU type"
1148	default CPU_R4X00
1149
1150config CPU_LOONGSON3
1151	bool "Loongson 3 CPU"
1152	depends on SYS_HAS_CPU_LOONGSON3
 
 
 
1153	select CPU_SUPPORTS_64BIT_KERNEL
1154	select CPU_SUPPORTS_HIGHMEM
1155	select CPU_SUPPORTS_HUGEPAGES
 
 
 
1156	select WEAK_ORDERING
1157	select WEAK_REORDERING_BEYOND_LLSC
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1158	help
1159		The Loongson 3 processor implements the MIPS64R2 instruction
1160		set with many extensions.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1161
1162config CPU_LOONGSON2E
1163	bool "Loongson 2E"
1164	depends on SYS_HAS_CPU_LOONGSON2E
1165	select CPU_LOONGSON2
1166	help
1167	  The Loongson 2E processor implements the MIPS III instruction set
1168	  with many extensions.
1169
1170	  It has an internal FPGA northbridge, which is compatible to
1171	  bonito64.
1172
1173config CPU_LOONGSON2F
1174	bool "Loongson 2F"
1175	depends on SYS_HAS_CPU_LOONGSON2F
1176	select CPU_LOONGSON2
1177	select ARCH_REQUIRE_GPIOLIB
1178	help
1179	  The Loongson 2F processor implements the MIPS III instruction set
1180	  with many extensions.
1181
1182	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1183	  have a similar programming interface with FPGA northbridge used in
1184	  Loongson2E.
1185
1186config CPU_LOONGSON1B
1187	bool "Loongson 1B"
1188	depends on SYS_HAS_CPU_LOONGSON1B
1189	select CPU_LOONGSON1
 
1190	help
1191	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1192	  release 2 instruction set.
 
 
 
 
 
 
 
 
 
 
 
1193
1194config CPU_MIPS32_R1
1195	bool "MIPS32 Release 1"
1196	depends on SYS_HAS_CPU_MIPS32_R1
1197	select CPU_HAS_PREFETCH
1198	select CPU_SUPPORTS_32BIT_KERNEL
1199	select CPU_SUPPORTS_HIGHMEM
1200	help
1201	  Choose this option to build a kernel for release 1 or later of the
1202	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1203	  MIPS processor are based on a MIPS32 processor.  If you know the
1204	  specific type of processor in your system, choose those that one
1205	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1206	  Release 2 of the MIPS32 architecture is available since several
1207	  years so chances are you even have a MIPS32 Release 2 processor
1208	  in which case you should choose CPU_MIPS32_R2 instead for better
1209	  performance.
1210
1211config CPU_MIPS32_R2
1212	bool "MIPS32 Release 2"
1213	depends on SYS_HAS_CPU_MIPS32_R2
1214	select CPU_HAS_PREFETCH
1215	select CPU_SUPPORTS_32BIT_KERNEL
1216	select CPU_SUPPORTS_HIGHMEM
1217	select CPU_SUPPORTS_MSA
1218	select HAVE_KVM
1219	help
1220	  Choose this option to build a kernel for release 2 or later of the
1221	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1222	  MIPS processor are based on a MIPS32 processor.  If you know the
1223	  specific type of processor in your system, choose those that one
1224	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1225
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1226config CPU_MIPS64_R1
1227	bool "MIPS64 Release 1"
1228	depends on SYS_HAS_CPU_MIPS64_R1
1229	select CPU_HAS_PREFETCH
1230	select CPU_SUPPORTS_32BIT_KERNEL
1231	select CPU_SUPPORTS_64BIT_KERNEL
1232	select CPU_SUPPORTS_HIGHMEM
1233	select CPU_SUPPORTS_HUGEPAGES
1234	help
1235	  Choose this option to build a kernel for release 1 or later of the
1236	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1237	  MIPS processor are based on a MIPS64 processor.  If you know the
1238	  specific type of processor in your system, choose those that one
1239	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1240	  Release 2 of the MIPS64 architecture is available since several
1241	  years so chances are you even have a MIPS64 Release 2 processor
1242	  in which case you should choose CPU_MIPS64_R2 instead for better
1243	  performance.
1244
1245config CPU_MIPS64_R2
1246	bool "MIPS64 Release 2"
1247	depends on SYS_HAS_CPU_MIPS64_R2
1248	select CPU_HAS_PREFETCH
1249	select CPU_SUPPORTS_32BIT_KERNEL
1250	select CPU_SUPPORTS_64BIT_KERNEL
1251	select CPU_SUPPORTS_HIGHMEM
1252	select CPU_SUPPORTS_HUGEPAGES
1253	select CPU_SUPPORTS_MSA
 
1254	help
1255	  Choose this option to build a kernel for release 2 or later of the
1256	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1257	  MIPS processor are based on a MIPS64 processor.  If you know the
1258	  specific type of processor in your system, choose those that one
1259	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1260
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1261config CPU_R3000
1262	bool "R3000"
1263	depends on SYS_HAS_CPU_R3000
1264	select CPU_HAS_WB
 
1265	select CPU_SUPPORTS_32BIT_KERNEL
1266	select CPU_SUPPORTS_HIGHMEM
1267	help
1268	  Please make sure to pick the right CPU type. Linux/MIPS is not
1269	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1270	  *not* work on R4000 machines and vice versa.  However, since most
1271	  of the supported machines have an R4000 (or similar) CPU, R4x00
1272	  might be a safe bet.  If the resulting kernel does not work,
1273	  try to recompile with R3000.
1274
1275config CPU_TX39XX
1276	bool "R39XX"
1277	depends on SYS_HAS_CPU_TX39XX
1278	select CPU_SUPPORTS_32BIT_KERNEL
1279
1280config CPU_VR41XX
1281	bool "R41xx"
1282	depends on SYS_HAS_CPU_VR41XX
1283	select CPU_SUPPORTS_32BIT_KERNEL
1284	select CPU_SUPPORTS_64BIT_KERNEL
1285	help
1286	  The options selects support for the NEC VR4100 series of processors.
1287	  Only choose this option if you have one of these processors as a
1288	  kernel built with this option will not run on any other type of
1289	  processor or vice versa.
1290
1291config CPU_R4300
1292	bool "R4300"
1293	depends on SYS_HAS_CPU_R4300
1294	select CPU_SUPPORTS_32BIT_KERNEL
1295	select CPU_SUPPORTS_64BIT_KERNEL
1296	help
1297	  MIPS Technologies R4300-series processors.
1298
1299config CPU_R4X00
1300	bool "R4x00"
1301	depends on SYS_HAS_CPU_R4X00
1302	select CPU_SUPPORTS_32BIT_KERNEL
1303	select CPU_SUPPORTS_64BIT_KERNEL
1304	select CPU_SUPPORTS_HUGEPAGES
1305	help
1306	  MIPS Technologies R4000-series processors other than 4300, including
1307	  the R4000, R4400, R4600, and 4700.
1308
1309config CPU_TX49XX
1310	bool "R49XX"
1311	depends on SYS_HAS_CPU_TX49XX
1312	select CPU_HAS_PREFETCH
1313	select CPU_SUPPORTS_32BIT_KERNEL
1314	select CPU_SUPPORTS_64BIT_KERNEL
1315	select CPU_SUPPORTS_HUGEPAGES
1316
1317config CPU_R5000
1318	bool "R5000"
1319	depends on SYS_HAS_CPU_R5000
1320	select CPU_SUPPORTS_32BIT_KERNEL
1321	select CPU_SUPPORTS_64BIT_KERNEL
1322	select CPU_SUPPORTS_HUGEPAGES
1323	help
1324	  MIPS Technologies R5000-series processors other than the Nevada.
1325
1326config CPU_R5432
1327	bool "R5432"
1328	depends on SYS_HAS_CPU_R5432
1329	select CPU_SUPPORTS_32BIT_KERNEL
1330	select CPU_SUPPORTS_64BIT_KERNEL
1331	select CPU_SUPPORTS_HUGEPAGES
1332
1333config CPU_R5500
1334	bool "R5500"
1335	depends on SYS_HAS_CPU_R5500
1336	select CPU_SUPPORTS_32BIT_KERNEL
1337	select CPU_SUPPORTS_64BIT_KERNEL
1338	select CPU_SUPPORTS_HUGEPAGES
1339	help
1340	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1341	  instruction set.
1342
1343config CPU_R6000
1344	bool "R6000"
1345	depends on SYS_HAS_CPU_R6000
1346	select CPU_SUPPORTS_32BIT_KERNEL
1347	help
1348	  MIPS Technologies R6000 and R6000A series processors.  Note these
1349	  processors are extremely rare and the support for them is incomplete.
1350
1351config CPU_NEVADA
1352	bool "RM52xx"
1353	depends on SYS_HAS_CPU_NEVADA
1354	select CPU_SUPPORTS_32BIT_KERNEL
1355	select CPU_SUPPORTS_64BIT_KERNEL
1356	select CPU_SUPPORTS_HUGEPAGES
1357	help
1358	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1359
1360config CPU_R8000
1361	bool "R8000"
1362	depends on SYS_HAS_CPU_R8000
1363	select CPU_HAS_PREFETCH
1364	select CPU_SUPPORTS_64BIT_KERNEL
1365	help
1366	  MIPS Technologies R8000 processors.  Note these processors are
1367	  uncommon and the support for them is incomplete.
1368
1369config CPU_R10000
1370	bool "R10000"
1371	depends on SYS_HAS_CPU_R10000
1372	select CPU_HAS_PREFETCH
1373	select CPU_SUPPORTS_32BIT_KERNEL
1374	select CPU_SUPPORTS_64BIT_KERNEL
1375	select CPU_SUPPORTS_HIGHMEM
1376	select CPU_SUPPORTS_HUGEPAGES
1377	help
1378	  MIPS Technologies R10000-series processors.
1379
1380config CPU_RM7000
1381	bool "RM7000"
1382	depends on SYS_HAS_CPU_RM7000
1383	select CPU_HAS_PREFETCH
1384	select CPU_SUPPORTS_32BIT_KERNEL
1385	select CPU_SUPPORTS_64BIT_KERNEL
1386	select CPU_SUPPORTS_HIGHMEM
1387	select CPU_SUPPORTS_HUGEPAGES
1388
1389config CPU_SB1
1390	bool "SB1"
1391	depends on SYS_HAS_CPU_SB1
1392	select CPU_SUPPORTS_32BIT_KERNEL
1393	select CPU_SUPPORTS_64BIT_KERNEL
1394	select CPU_SUPPORTS_HIGHMEM
1395	select CPU_SUPPORTS_HUGEPAGES
1396	select WEAK_ORDERING
1397
1398config CPU_CAVIUM_OCTEON
1399	bool "Cavium Octeon processor"
1400	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1401	select ARCH_SPARSEMEM_ENABLE
1402	select CPU_HAS_PREFETCH
1403	select CPU_SUPPORTS_64BIT_KERNEL
1404	select SYS_SUPPORTS_SMP
1405	select NR_CPUS_DEFAULT_16
1406	select WEAK_ORDERING
1407	select CPU_SUPPORTS_HIGHMEM
1408	select CPU_SUPPORTS_HUGEPAGES
1409	select LIBFDT
1410	select USE_OF
1411	select USB_EHCI_BIG_ENDIAN_MMIO
1412	select MIPS_L1_CACHE_SHIFT_7
 
1413	help
1414	  The Cavium Octeon processor is a highly integrated chip containing
1415	  many ethernet hardware widgets for networking tasks. The processor
1416	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1417	  Full details can be found at http://www.caviumnetworks.com.
1418
1419config CPU_BMIPS
1420	bool "Broadcom BMIPS"
1421	depends on SYS_HAS_CPU_BMIPS
1422	select CPU_MIPS32
1423	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1424	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1425	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1426	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1427	select CPU_SUPPORTS_32BIT_KERNEL
1428	select DMA_NONCOHERENT
1429	select IRQ_CPU
1430	select SWAP_IO_SPACE
1431	select WEAK_ORDERING
1432	select CPU_SUPPORTS_HIGHMEM
1433	select CPU_HAS_PREFETCH
 
 
 
1434	help
1435	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1436
1437config CPU_XLR
1438	bool "Netlogic XLR SoC"
1439	depends on SYS_HAS_CPU_XLR
1440	select CPU_SUPPORTS_32BIT_KERNEL
1441	select CPU_SUPPORTS_64BIT_KERNEL
1442	select CPU_SUPPORTS_HIGHMEM
1443	select CPU_SUPPORTS_HUGEPAGES
1444	select WEAK_ORDERING
1445	select WEAK_REORDERING_BEYOND_LLSC
1446	help
1447	  Netlogic Microsystems XLR/XLS processors.
1448
1449config CPU_XLP
1450	bool "Netlogic XLP SoC"
1451	depends on SYS_HAS_CPU_XLP
1452	select CPU_SUPPORTS_32BIT_KERNEL
1453	select CPU_SUPPORTS_64BIT_KERNEL
1454	select CPU_SUPPORTS_HIGHMEM
1455	select WEAK_ORDERING
1456	select WEAK_REORDERING_BEYOND_LLSC
1457	select CPU_HAS_PREFETCH
1458	select CPU_MIPSR2
1459	help
1460	  Netlogic Microsystems XLP processors.
1461endchoice
1462
1463config CPU_MIPS32_3_5_FEATURES
1464	bool "MIPS32 Release 3.5 Features"
1465	depends on SYS_HAS_CPU_MIPS32_R3_5
1466	depends on CPU_MIPS32_R2
 
1467	help
1468	  Choose this option to build a kernel for release 2 or later of the
1469	  MIPS32 architecture including features from the 3.5 release such as
1470	  support for Enhanced Virtual Addressing (EVA).
1471
1472config CPU_MIPS32_3_5_EVA
1473	bool "Enhanced Virtual Addressing (EVA)"
1474	depends on CPU_MIPS32_3_5_FEATURES
1475	select EVA
1476	default y
1477	help
1478	  Choose this option if you want to enable the Enhanced Virtual
1479	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1480	  One of its primary benefits is an increase in the maximum size
1481	  of lowmem (up to 3GB). If unsure, say 'N' here.
1482
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1483if CPU_LOONGSON2F
1484config CPU_NOP_WORKAROUNDS
1485	bool
1486
1487config CPU_JUMP_WORKAROUNDS
1488	bool
1489
1490config CPU_LOONGSON2F_WORKAROUNDS
1491	bool "Loongson 2F Workarounds"
1492	default y
1493	select CPU_NOP_WORKAROUNDS
1494	select CPU_JUMP_WORKAROUNDS
1495	help
1496	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1497	  require workarounds.  Without workarounds the system may hang
1498	  unexpectedly.  For more information please refer to the gas
1499	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1500
1501	  Loongson 2F03 and later have fixed these issues and no workarounds
1502	  are needed.  The workarounds have no significant side effect on them
1503	  but may decrease the performance of the system so this option should
1504	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1505	  systems.
1506
1507	  If unsure, please say Y.
1508endif # CPU_LOONGSON2F
1509
1510config SYS_SUPPORTS_ZBOOT
1511	bool
1512	select HAVE_KERNEL_GZIP
1513	select HAVE_KERNEL_BZIP2
1514	select HAVE_KERNEL_LZ4
1515	select HAVE_KERNEL_LZMA
1516	select HAVE_KERNEL_LZO
1517	select HAVE_KERNEL_XZ
 
1518
1519config SYS_SUPPORTS_ZBOOT_UART16550
1520	bool
1521	select SYS_SUPPORTS_ZBOOT
1522
1523config CPU_LOONGSON2
 
 
 
 
1524	bool
1525	select CPU_SUPPORTS_32BIT_KERNEL
1526	select CPU_SUPPORTS_64BIT_KERNEL
1527	select CPU_SUPPORTS_HIGHMEM
1528	select CPU_SUPPORTS_HUGEPAGES
 
1529
1530config CPU_LOONGSON1
1531	bool
1532	select CPU_MIPS32
1533	select CPU_MIPSR2
1534	select CPU_HAS_PREFETCH
1535	select CPU_SUPPORTS_32BIT_KERNEL
1536	select CPU_SUPPORTS_HIGHMEM
 
1537
1538config CPU_BMIPS32_3300
1539	select SMP_UP if SMP
1540	bool
1541
1542config CPU_BMIPS4350
1543	bool
1544	select SYS_SUPPORTS_SMP
1545	select SYS_SUPPORTS_HOTPLUG_CPU
1546
1547config CPU_BMIPS4380
1548	bool
 
1549	select SYS_SUPPORTS_SMP
1550	select SYS_SUPPORTS_HOTPLUG_CPU
 
1551
1552config CPU_BMIPS5000
1553	bool
1554	select MIPS_CPU_SCACHE
 
1555	select SYS_SUPPORTS_SMP
1556	select SYS_SUPPORTS_HOTPLUG_CPU
 
1557
1558config SYS_HAS_CPU_LOONGSON3
1559	bool
1560	select CPU_SUPPORTS_CPUFREQ
 
1561
1562config SYS_HAS_CPU_LOONGSON2E
1563	bool
1564
1565config SYS_HAS_CPU_LOONGSON2F
1566	bool
1567	select CPU_SUPPORTS_CPUFREQ
1568	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1569	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1570
1571config SYS_HAS_CPU_LOONGSON1B
1572	bool
1573
 
 
 
1574config SYS_HAS_CPU_MIPS32_R1
1575	bool
1576
1577config SYS_HAS_CPU_MIPS32_R2
1578	bool
1579
1580config SYS_HAS_CPU_MIPS32_R3_5
1581	bool
1582
 
 
 
 
 
 
 
 
1583config SYS_HAS_CPU_MIPS64_R1
1584	bool
1585
1586config SYS_HAS_CPU_MIPS64_R2
1587	bool
1588
1589config SYS_HAS_CPU_R3000
 
 
 
 
1590	bool
 
1591
1592config SYS_HAS_CPU_TX39XX
1593	bool
 
1594
1595config SYS_HAS_CPU_VR41XX
1596	bool
1597
1598config SYS_HAS_CPU_R4300
1599	bool
1600
1601config SYS_HAS_CPU_R4X00
1602	bool
1603
1604config SYS_HAS_CPU_TX49XX
1605	bool
1606
1607config SYS_HAS_CPU_R5000
1608	bool
1609
1610config SYS_HAS_CPU_R5432
1611	bool
1612
1613config SYS_HAS_CPU_R5500
1614	bool
1615
1616config SYS_HAS_CPU_R6000
1617	bool
1618
1619config SYS_HAS_CPU_NEVADA
1620	bool
1621
1622config SYS_HAS_CPU_R8000
1623	bool
1624
1625config SYS_HAS_CPU_R10000
1626	bool
 
1627
1628config SYS_HAS_CPU_RM7000
1629	bool
1630
1631config SYS_HAS_CPU_SB1
1632	bool
1633
1634config SYS_HAS_CPU_CAVIUM_OCTEON
1635	bool
1636
1637config SYS_HAS_CPU_BMIPS
1638	bool
1639
1640config SYS_HAS_CPU_BMIPS32_3300
1641	bool
1642	select SYS_HAS_CPU_BMIPS
1643
1644config SYS_HAS_CPU_BMIPS4350
1645	bool
1646	select SYS_HAS_CPU_BMIPS
1647
1648config SYS_HAS_CPU_BMIPS4380
1649	bool
1650	select SYS_HAS_CPU_BMIPS
1651
1652config SYS_HAS_CPU_BMIPS5000
1653	bool
1654	select SYS_HAS_CPU_BMIPS
1655
1656config SYS_HAS_CPU_XLR
1657	bool
1658
1659config SYS_HAS_CPU_XLP
1660	bool
1661
1662#
1663# CPU may reorder R->R, R->W, W->R, W->W
1664# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1665#
1666config WEAK_ORDERING
1667	bool
1668
1669#
1670# CPU may reorder reads and writes beyond LL/SC
1671# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1672#
1673config WEAK_REORDERING_BEYOND_LLSC
1674	bool
1675endmenu
1676
1677#
1678# These two indicate any level of the MIPS32 and MIPS64 architecture
1679#
1680config CPU_MIPS32
1681	bool
1682	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
 
1683
1684config CPU_MIPS64
1685	bool
1686	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
 
1687
1688#
1689# These two indicate the revision of the architecture, either Release 1 or Release 2
1690#
1691config CPU_MIPSR1
1692	bool
1693	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1694
1695config CPU_MIPSR2
1696	bool
1697	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1698
1699config EVA
1700	bool
1701
 
 
 
1702config SYS_SUPPORTS_32BIT_KERNEL
1703	bool
1704config SYS_SUPPORTS_64BIT_KERNEL
1705	bool
1706config CPU_SUPPORTS_32BIT_KERNEL
1707	bool
1708config CPU_SUPPORTS_64BIT_KERNEL
1709	bool
1710config CPU_SUPPORTS_CPUFREQ
1711	bool
1712config CPU_SUPPORTS_ADDRWINCFG
1713	bool
1714config CPU_SUPPORTS_HUGEPAGES
1715	bool
1716config CPU_SUPPORTS_UNCACHED_ACCELERATED
1717	bool
1718config MIPS_PGD_C0_CONTEXT
1719	bool
1720	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
 
1721
1722#
1723# Set to y for ptrace access to watch registers.
1724#
1725config HARDWARE_WATCHPOINTS
1726       bool
1727       default y if CPU_MIPSR1 || CPU_MIPSR2
1728
1729menu "Kernel type"
1730
1731choice
1732	prompt "Kernel code model"
1733	help
1734	  You should only select this option if you have a workload that
1735	  actually benefits from 64-bit processing or if your machine has
1736	  large memory.  You will only be presented a single option in this
1737	  menu if your system does not support both 32-bit and 64-bit kernels.
1738
1739config 32BIT
1740	bool "32-bit kernel"
1741	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1742	select TRAD_SIGNALS
1743	help
1744	  Select this option if you want to build a 32-bit kernel.
 
1745config 64BIT
1746	bool "64-bit kernel"
1747	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1748	help
1749	  Select this option if you want to build a 64-bit kernel.
1750
1751endchoice
1752
1753config KVM_GUEST
1754	bool "KVM Guest Kernel"
1755	depends on BROKEN_ON_SMP
1756	help
1757	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1758
1759config KVM_HOST_FREQ
1760	int "KVM Host Processor Frequency (MHz)"
1761	depends on KVM_GUEST
1762	default 500
1763	help
1764	  Select this option if building a guest kernel for KVM to skip
1765	  RTC emulation when determining guest CPU Frequency.  Instead, the guest
1766	  processor frequency is automatically derived from the host frequency.
 
 
 
 
 
 
 
 
1767
1768choice
1769	prompt "Kernel page size"
1770	default PAGE_SIZE_4KB
1771
1772config PAGE_SIZE_4KB
1773	bool "4kB"
1774	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1775	help
1776	 This option select the standard 4kB Linux page size.  On some
1777	 R3000-family processors this is the only available page size.  Using
1778	 4kB page size will minimize memory consumption and is therefore
1779	 recommended for low memory systems.
1780
1781config PAGE_SIZE_8KB
1782	bool "8kB"
1783	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
 
1784	help
1785	  Using 8kB page size will result in higher performance kernel at
1786	  the price of higher memory consumption.  This option is available
1787	  only on R8000 and cnMIPS processors.  Note that you will need a
1788	  suitable Linux distribution to support this.
1789
1790config PAGE_SIZE_16KB
1791	bool "16kB"
1792	depends on !CPU_R3000 && !CPU_TX39XX
1793	help
1794	  Using 16kB page size will result in higher performance kernel at
1795	  the price of higher memory consumption.  This option is available on
1796	  all non-R3000 family processors.  Note that you will need a suitable
1797	  Linux distribution to support this.
1798
1799config PAGE_SIZE_32KB
1800	bool "32kB"
1801	depends on CPU_CAVIUM_OCTEON
 
1802	help
1803	  Using 32kB page size will result in higher performance kernel at
1804	  the price of higher memory consumption.  This option is available
1805	  only on cnMIPS cores.  Note that you will need a suitable Linux
1806	  distribution to support this.
1807
1808config PAGE_SIZE_64KB
1809	bool "64kB"
1810	depends on !CPU_R3000 && !CPU_TX39XX
1811	help
1812	  Using 64kB page size will result in higher performance kernel at
1813	  the price of higher memory consumption.  This option is available on
1814	  all non-R3000 family processor.  Not that at the time of this
1815	  writing this option is still high experimental.
1816
1817endchoice
1818
1819config FORCE_MAX_ZONEORDER
1820	int "Maximum zone order"
1821	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1822	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1823	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1824	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1825	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1826	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1827	range 11 64
1828	default "11"
1829	help
1830	  The kernel memory allocator divides physically contiguous memory
1831	  blocks into "zones", where each zone is a power of two number of
1832	  pages.  This option selects the largest power of two that the kernel
1833	  keeps in the memory allocator.  If you need to allocate very large
1834	  blocks of physically contiguous memory, then you may need to
1835	  increase this value.
1836
1837	  This config option is actually maximum order plus one. For example,
1838	  a value of 11 means that the largest free memory block is 2^10 pages.
1839
1840	  The page size is not necessarily 4KB.  Keep this in mind
1841	  when choosing a value for this option.
1842
1843config CEVT_GIC
1844	bool "Use GIC global counter for clock events"
1845	depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1846	help
1847	  Use the GIC global counter for the clock events. The R4K clock
1848	  event driver is always present, so if the platform ends up not
1849	  detecting a GIC, it will fall back to the R4K timer for the
1850	  generation of clock events.
1851
1852config BOARD_SCACHE
1853	bool
1854
1855config IP22_CPU_SCACHE
1856	bool
1857	select BOARD_SCACHE
1858
1859#
1860# Support for a MIPS32 / MIPS64 style S-caches
1861#
1862config MIPS_CPU_SCACHE
1863	bool
1864	select BOARD_SCACHE
1865	select MIPS_L1_CACHE_SHIFT_6
1866
1867config R5000_CPU_SCACHE
1868	bool
1869	select BOARD_SCACHE
1870
1871config RM7000_CPU_SCACHE
1872	bool
1873	select BOARD_SCACHE
1874
1875config SIBYTE_DMA_PAGEOPS
1876	bool "Use DMA to clear/copy pages"
1877	depends on CPU_SB1
1878	help
1879	  Instead of using the CPU to zero and copy pages, use a Data Mover
1880	  channel.  These DMA channels are otherwise unused by the standard
1881	  SiByte Linux port.  Seems to give a small performance benefit.
1882
1883config CPU_HAS_PREFETCH
1884	bool
1885
1886config CPU_GENERIC_DUMP_TLB
1887	bool
1888	default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1889
1890config CPU_R4K_FPU
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1891	bool
1892	default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
 
1893
1894config CPU_R4K_CACHE_TLB
1895	bool
1896	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1897
1898choice
1899	prompt "MIPS MT options"
 
 
1900
1901config MIPS_MT_DISABLED
1902	bool "Disable multithreading support"
1903	help
1904	  Use this option if your platform does not support the MT ASE
1905	  which is hardware multithreading support. On systems without
1906	  an MT-enabled processor, this will be the only option that is
1907	  available in this menu.
1908
1909config MIPS_MT_SMP
1910	bool "Use 1 TC on each available VPE for SMP"
1911	depends on SYS_SUPPORTS_MULTITHREADING
 
1912	select CPU_MIPSR2_IRQ_VI
1913	select CPU_MIPSR2_IRQ_EI
1914	select SYNC_R4K
1915	select MIPS_GIC_IPI
1916	select MIPS_MT
1917	select SMP
1918	select SMP_UP
1919	select SYS_SUPPORTS_SMP
1920	select SYS_SUPPORTS_SCHED_SMT
1921	select MIPS_PERF_SHARED_TC_COUNTERS
1922	help
1923	  This is a kernel model which is known as SMVP. This is supported
1924	  on cores with the MT ASE and uses the available VPEs to implement
1925	  virtual processors which supports SMP. This is equivalent to the
1926	  Intel Hyperthreading feature. For further information go to
1927	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
1928
1929config MIPS_MT_SMTC
1930	bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
1931	depends on CPU_MIPS32_R2
1932	depends on SYS_SUPPORTS_MULTITHREADING
1933	depends on !MIPS_CPS
1934	select CPU_MIPSR2_IRQ_VI
1935	select CPU_MIPSR2_IRQ_EI
1936	select MIPS_MT
1937	select SMP
1938	select SMP_UP
1939	select SYS_SUPPORTS_SMP
1940	select NR_CPUS_DEFAULT_8
1941	help
1942	  This is a kernel model which is known as SMTC. This is
1943	  supported on cores with the MT ASE and presents all TCs
1944	  available on all VPEs to support SMP. For further
1945	  information see <http://www.linux-mips.org/wiki/34K#SMTC>.
1946
1947endchoice
1948
1949config MIPS_MT
1950	bool
1951
1952config SCHED_SMT
1953	bool "SMT (multithreading) scheduler support"
1954	depends on SYS_SUPPORTS_SCHED_SMT
1955	default n
1956	help
1957	  SMT scheduler support improves the CPU scheduler's decision making
1958	  when dealing with MIPS MT enabled cores at a cost of slightly
1959	  increased overhead in some places. If unsure say N here.
1960
1961config SYS_SUPPORTS_SCHED_SMT
1962	bool
1963
1964config SYS_SUPPORTS_MULTITHREADING
1965	bool
1966
1967config MIPS_MT_FPAFF
1968	bool "Dynamic FPU affinity for FP-intensive threads"
1969	default y
1970	depends on MIPS_MT_SMP || MIPS_MT_SMTC
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1971
1972config MIPS_VPE_LOADER
1973	bool "VPE loader support."
1974	depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1975	select CPU_MIPSR2_IRQ_VI
1976	select CPU_MIPSR2_IRQ_EI
1977	select MIPS_MT
1978	help
1979	  Includes a loader for loading an elf relocatable object
1980	  onto another VPE and running it.
1981
1982config MIPS_VPE_LOADER_CMP
1983	bool
1984	default "y"
1985	depends on MIPS_VPE_LOADER && MIPS_CMP
1986
1987config MIPS_VPE_LOADER_MT
1988	bool
1989	default "y"
1990	depends on MIPS_VPE_LOADER && !MIPS_CMP
1991
1992config MIPS_MT_SMTC_IM_BACKSTOP
1993	bool "Use per-TC register bits as backstop for inhibited IM bits"
1994	depends on MIPS_MT_SMTC
1995	default n
1996	help
1997	  To support multiple TC microthreads acting as "CPUs" within
1998	  a VPE, VPE-wide interrupt mask bits must be specially manipulated
1999	  during interrupt handling. To support legacy drivers and interrupt
2000	  controller management code, SMTC has a "backstop" to track and
2001	  if necessary restore the interrupt mask. This has some performance
2002	  impact on interrupt service overhead.
2003
2004config MIPS_MT_SMTC_IRQAFF
2005	bool "Support IRQ affinity API"
2006	depends on MIPS_MT_SMTC
2007	default n
2008	help
2009	  Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2010	  for SMTC Linux kernel. Requires platform support, of which
2011	  an example can be found in the MIPS kernel i8259 and Malta
2012	  platform code.  Adds some overhead to interrupt dispatch, and
2013	  should be used only if you know what you are doing.
2014
2015config MIPS_VPE_LOADER_TOM
2016	bool "Load VPE program into memory hidden from linux"
2017	depends on MIPS_VPE_LOADER
2018	default y
2019	help
2020	  The loader can use memory that is present but has been hidden from
2021	  Linux using the kernel command line option "mem=xxMB". It's up to
2022	  you to ensure the amount you put in the option and the space your
2023	  program requires is less or equal to the amount physically present.
2024
2025config MIPS_VPE_APSP_API
2026	bool "Enable support for AP/SP API (RTLX)"
2027	depends on MIPS_VPE_LOADER
2028	help
2029
2030config MIPS_VPE_APSP_API_CMP
2031	bool
2032	default "y"
2033	depends on MIPS_VPE_APSP_API && MIPS_CMP
2034
2035config MIPS_VPE_APSP_API_MT
2036	bool
2037	default "y"
2038	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2039
2040config MIPS_CMP
2041	bool "MIPS CMP framework support (DEPRECATED)"
2042	depends on SYS_SUPPORTS_MIPS_CMP && !MIPS_MT_SMTC
2043	select MIPS_GIC_IPI
2044	select SYNC_R4K
 
2045	select WEAK_ORDERING
2046	default n
2047	help
2048	  Select this if you are using a bootloader which implements the "CMP
2049	  framework" protocol (ie. YAMON) and want your kernel to make use of
2050	  its ability to start secondary CPUs.
2051
2052	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2053	  instead of this.
2054
2055config MIPS_CPS
2056	bool "MIPS Coherent Processing System support"
2057	depends on SYS_SUPPORTS_MIPS_CPS
2058	select MIPS_CM
2059	select MIPS_CPC
2060	select MIPS_GIC_IPI
2061	select SMP
2062	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
 
 
2063	select SYS_SUPPORTS_SMP
2064	select WEAK_ORDERING
 
2065	help
2066	  Select this if you wish to run an SMP kernel across multiple cores
2067	  within a MIPS Coherent Processing System. When this option is
2068	  enabled the kernel will probe for other cores and boot them with
2069	  no external assistance. It is safe to enable this when hardware
2070	  support is unavailable.
2071
2072config MIPS_GIC_IPI
 
2073	bool
2074
2075config MIPS_CM
2076	bool
 
2077
2078config MIPS_CPC
2079	bool
2080
2081config SB1_PASS_1_WORKAROUNDS
2082	bool
2083	depends on CPU_SB1_PASS_1
2084	default y
2085
2086config SB1_PASS_2_WORKAROUNDS
2087	bool
2088	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2089	default y
2090
2091config SB1_PASS_2_1_WORKAROUNDS
2092	bool
2093	depends on CPU_SB1 && CPU_SB1_PASS_2
2094	default y
2095
 
 
2096
2097config 64BIT_PHYS_ADDR
2098	bool
2099
2100config ARCH_PHYS_ADDR_T_64BIT
2101       def_bool 64BIT_PHYS_ADDR
2102
2103config CPU_HAS_SMARTMIPS
2104	depends on SYS_SUPPORTS_SMARTMIPS
2105	bool "Support for the SmartMIPS ASE"
2106	help
2107	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2108	  increased security at both hardware and software level for
2109	  smartcards.  Enabling this option will allow proper use of the
2110	  SmartMIPS instructions by Linux applications.  However a kernel with
2111	  this option will not work on a MIPS core without SmartMIPS core.  If
2112	  you don't know you probably don't have SmartMIPS and should say N
2113	  here.
2114
2115config CPU_MICROMIPS
2116	depends on SYS_SUPPORTS_MICROMIPS
2117	bool "Build kernel using microMIPS ISA"
2118	help
2119	  When this option is enabled the kernel will be built using the
2120	  microMIPS ISA
2121
 
 
2122config CPU_HAS_MSA
2123	bool "Support for the MIPS SIMD Architecture"
2124	depends on CPU_SUPPORTS_MSA
2125	default y
 
2126	help
2127	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2128	  and a set of SIMD instructions to operate on them. When this option
2129	  is enabled the kernel will support allocating & switching MSA
2130	  vector register contexts. If you know that your kernel will only be
2131	  running on CPUs which do not support MSA or that your userland will
2132	  not be making use of it then you may wish to say N here to reduce
2133	  the size & complexity of your kernel.
2134
2135	  If unsure, say Y.
2136
2137config CPU_HAS_WB
2138	bool
2139
2140config XKS01
2141	bool
2142
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2143#
2144# Vectored interrupt mode is an R2 feature
2145#
2146config CPU_MIPSR2_IRQ_VI
2147	bool
2148
2149#
2150# Extended interrupt mode is an R2 feature
2151#
2152config CPU_MIPSR2_IRQ_EI
2153	bool
2154
2155config CPU_HAS_SYNC
2156	bool
2157	depends on !CPU_R3000
2158	default y
2159
2160#
2161# CPU non-features
2162#
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2163config CPU_DADDI_WORKAROUNDS
2164	bool
2165
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2166config CPU_R4000_WORKAROUNDS
2167	bool
2168	select CPU_R4400_WORKAROUNDS
2169
 
 
 
 
 
 
2170config CPU_R4400_WORKAROUNDS
2171	bool
2172
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2173#
2174# - Highmem only makes sense for the 32-bit kernel.
2175# - The current highmem code will only work properly on physically indexed
2176#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2177#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2178#   moment we protect the user and offer the highmem option only on machines
2179#   where it's known to be safe.  This will not offer highmem on a few systems
2180#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2181#   indexed CPUs but we're playing safe.
2182# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2183#   know they might have memory configurations that could make use of highmem
2184#   support.
2185#
2186config HIGHMEM
2187	bool "High Memory Support"
2188	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
 
2189
2190config CPU_SUPPORTS_HIGHMEM
2191	bool
2192
2193config SYS_SUPPORTS_HIGHMEM
2194	bool
2195
2196config SYS_SUPPORTS_SMARTMIPS
2197	bool
2198
2199config SYS_SUPPORTS_MICROMIPS
2200	bool
2201
 
 
 
 
 
 
 
2202config CPU_SUPPORTS_MSA
2203	bool
2204
2205config ARCH_FLATMEM_ENABLE
2206	def_bool y
2207	depends on !NUMA && !CPU_LOONGSON2
2208
2209config ARCH_DISCONTIGMEM_ENABLE
2210	bool
2211	default y if SGI_IP27
2212	help
2213	  Say Y to support efficient handling of discontiguous physical memory,
2214	  for architectures which are either NUMA (Non-Uniform Memory Access)
2215	  or have huge holes in the physical address space for other reasons.
2216	  See <file:Documentation/vm/numa> for more.
2217
2218config ARCH_SPARSEMEM_ENABLE
2219	bool
2220	select SPARSEMEM_STATIC
2221
2222config NUMA
2223	bool "NUMA Support"
2224	depends on SYS_SUPPORTS_NUMA
 
 
 
2225	help
2226	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2227	  Access).  This option improves performance on systems with more
2228	  than two nodes; on two node systems it is generally better to
2229	  leave it disabled; on single node systems disable this option
2230	  disabled.
2231
2232config SYS_SUPPORTS_NUMA
2233	bool
2234
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2235config NODES_SHIFT
2236	int
2237	default "6"
2238	depends on NEED_MULTIPLE_NODES
2239
2240config HW_PERF_EVENTS
2241	bool "Enable hardware performance counter support for perf events"
2242	depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2243	default y
2244	help
2245	  Enable hardware performance counter support for perf events. If
2246	  disabled, perf events will use software events only.
2247
2248source "mm/Kconfig"
 
 
 
 
 
 
 
 
 
2249
2250config SMP
2251	bool "Multi-Processing support"
2252	depends on SYS_SUPPORTS_SMP
2253	help
2254	  This enables support for systems with more than one CPU. If you have
2255	  a system with only one CPU, say N. If you have a system with more
2256	  than one CPU, say Y.
2257
2258	  If you say N here, the kernel will run on uni- and multiprocessor
2259	  machines, but will use only one CPU of a multiprocessor machine. If
2260	  you say Y here, the kernel will run on many, but not all,
2261	  uniprocessor machines. On a uniprocessor machine, the kernel
2262	  will run faster if you say N here.
2263
2264	  People using multiprocessor machines who say Y here should also say
2265	  Y to "Enhanced Real Time Clock Support", below.
2266
2267	  See also the SMP-HOWTO available at
2268	  <http://www.tldp.org/docs.html#howto>.
2269
2270	  If you don't know what to do here, say N.
2271
 
 
 
 
 
 
 
 
 
 
2272config SMP_UP
2273	bool
2274
2275config SYS_SUPPORTS_MIPS_CMP
2276	bool
2277
2278config SYS_SUPPORTS_MIPS_CPS
2279	bool
2280
2281config SYS_SUPPORTS_SMP
2282	bool
2283
2284config NR_CPUS_DEFAULT_4
2285	bool
2286
2287config NR_CPUS_DEFAULT_8
2288	bool
2289
2290config NR_CPUS_DEFAULT_16
2291	bool
2292
2293config NR_CPUS_DEFAULT_32
2294	bool
2295
2296config NR_CPUS_DEFAULT_64
2297	bool
2298
2299config NR_CPUS
2300	int "Maximum number of CPUs (2-64)"
2301	range 2 64
2302	depends on SMP
2303	default "4" if NR_CPUS_DEFAULT_4
2304	default "8" if NR_CPUS_DEFAULT_8
2305	default "16" if NR_CPUS_DEFAULT_16
2306	default "32" if NR_CPUS_DEFAULT_32
2307	default "64" if NR_CPUS_DEFAULT_64
2308	help
2309	  This allows you to specify the maximum number of CPUs which this
2310	  kernel will support.  The maximum supported value is 32 for 32-bit
2311	  kernel and 64 for 64-bit kernels; the minimum value which makes
2312	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2313	  and 2 for all others.
2314
2315	  This is purely to save memory - each supported CPU adds
2316	  approximately eight kilobytes to the kernel image.  For best
2317	  performance should round up your number of processors to the next
2318	  power of two.
2319
2320config MIPS_PERF_SHARED_TC_COUNTERS
2321	bool
2322
 
 
 
 
 
 
 
 
 
2323#
2324# Timer Interrupt Frequency Configuration
2325#
2326
2327choice
2328	prompt "Timer frequency"
2329	default HZ_250
2330	help
2331	 Allows the configuration of the timer frequency.
 
 
 
2332
2333	config HZ_48
2334		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2335
2336	config HZ_100
2337		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2338
2339	config HZ_128
2340		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2341
2342	config HZ_250
2343		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2344
2345	config HZ_256
2346		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2347
2348	config HZ_1000
2349		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2350
2351	config HZ_1024
2352		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2353
2354endchoice
2355
 
 
 
2356config SYS_SUPPORTS_48HZ
2357	bool
2358
2359config SYS_SUPPORTS_100HZ
2360	bool
2361
2362config SYS_SUPPORTS_128HZ
2363	bool
2364
2365config SYS_SUPPORTS_250HZ
2366	bool
2367
2368config SYS_SUPPORTS_256HZ
2369	bool
2370
2371config SYS_SUPPORTS_1000HZ
2372	bool
2373
2374config SYS_SUPPORTS_1024HZ
2375	bool
2376
2377config SYS_SUPPORTS_ARBIT_HZ
2378	bool
2379	default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2380		     !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2381		     !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
 
 
 
 
2382		     !SYS_SUPPORTS_1024HZ
2383
2384config HZ
2385	int
 
2386	default 48 if HZ_48
2387	default 100 if HZ_100
2388	default 128 if HZ_128
2389	default 250 if HZ_250
2390	default 256 if HZ_256
2391	default 1000 if HZ_1000
2392	default 1024 if HZ_1024
2393
2394source "kernel/Kconfig.preempt"
 
2395
2396config KEXEC
2397	bool "Kexec system call"
 
2398	help
2399	  kexec is a system call that implements the ability to shutdown your
2400	  current kernel, and to start another kernel.  It is like a reboot
2401	  but it is independent of the system firmware.   And like a reboot
2402	  you can start any kernel with it, not just Linux.
2403
2404	  The name comes from the similarity to the exec system call.
2405
2406	  It is an ongoing process to be certain the hardware in a machine
2407	  is properly shutdown, so do not be surprised if this code does not
2408	  initially work for you.  As of this writing the exact hardware
2409	  interface is strongly in flux, so no good recommendation can be
2410	  made.
2411
2412config CRASH_DUMP
2413	  bool "Kernel crash dumps"
2414	  help
2415	  Generate crash dump after being started by kexec.
2416	  This should be normally only set in special crash dump kernels
2417	  which are loaded in the main kernel with kexec-tools into
2418	  a specially reserved region and then later executed after
2419	  a crash by kdump/kexec. The crash dump kernel must be compiled
2420	  to a memory address not used by the main kernel or firmware using
2421	  PHYSICAL_START.
2422
2423config PHYSICAL_START
2424	  hex "Physical address where the kernel is loaded"
2425	  default "0xffffffff84000000" if 64BIT
2426	  default "0x84000000" if 32BIT
2427	  depends on CRASH_DUMP
2428	  help
2429	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2430	  If you plan to use kernel for capturing the crash dump change
2431	  this value to start of the reserved region (the "X" value as
2432	  specified in the "crashkernel=YM@XM" command line boot parameter
2433	  passed to the panic-ed kernel).
2434
2435config SECCOMP
2436	bool "Enable seccomp to safely compute untrusted bytecode"
2437	depends on PROC_FS
2438	default y
2439	help
2440	  This kernel feature is useful for number crunching applications
2441	  that may need to compute untrusted bytecode during their
2442	  execution. By using pipes or other transports made available to
2443	  the process as file descriptors supporting the read/write
2444	  syscalls, it's possible to isolate those applications in
2445	  their own address space using seccomp. Once seccomp is
2446	  enabled via /proc/<pid>/seccomp, it cannot be disabled
2447	  and the task is only allowed to execute a few safe syscalls
2448	  defined by each seccomp mode.
2449
2450	  If unsure, say Y. Only embedded should say N here.
2451
2452config MIPS_O32_FP64_SUPPORT
2453	bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2454	depends on 32BIT || MIPS32_O32
2455	help
2456	  When this is enabled, the kernel will support use of 64-bit floating
2457	  point registers with binaries using the O32 ABI along with the
2458	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2459	  32-bit MIPS systems this support is at the cost of increasing the
2460	  size and complexity of the compiled FPU emulator. Thus if you are
2461	  running a MIPS32 system and know that none of your userland binaries
2462	  will require 64-bit floating point, you may wish to reduce the size
2463	  of your kernel & potentially improve FP emulation performance by
2464	  saying N here.
2465
2466	  Although binutils currently supports use of this flag the details
2467	  concerning its effect upon the O32 ABI in userland are still being
2468	  worked on. In order to avoid userland becoming dependant upon current
2469	  behaviour before the details have been finalised, this option should
2470	  be considered experimental and only enabled by those working upon
2471	  said details.
2472
2473	  If unsure, say N.
2474
2475config USE_OF
2476	bool
2477	select OF
2478	select OF_EARLY_FLATTREE
2479	select IRQ_DOMAIN
2480
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2481endmenu
2482
2483config LOCKDEP_SUPPORT
2484	bool
2485	default y
2486
2487config STACKTRACE_SUPPORT
2488	bool
2489	default y
2490
2491source "init/Kconfig"
 
 
 
 
2492
2493source "kernel/Kconfig.freezer"
 
2494
2495menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2496
2497config HW_HAS_EISA
2498	bool
2499config HW_HAS_PCI
2500	bool
2501
2502config PCI
2503	bool "Support for PCI controller"
2504	depends on HW_HAS_PCI
2505	select PCI_DOMAINS
2506	select NO_GENERIC_PCI_IOPORT_MAP
2507	help
2508	  Find out whether you have a PCI motherboard. PCI is the name of a
2509	  bus system, i.e. the way the CPU talks to the other stuff inside
2510	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2511	  say Y, otherwise N.
2512
2513config HT_PCI
2514	bool "Support for HT-linked PCI"
2515	default y
2516	depends on CPU_LOONGSON3
2517	select PCI
2518	select PCI_DOMAINS
2519	help
2520	  Loongson family machines use Hyper-Transport bus for inter-core
2521	  connection and device connection. The PCI bus is a subordinate
2522	  linked at HT. Choose Y for Loongson-3 based machines.
2523
2524config PCI_DOMAINS
2525	bool
2526
2527source "drivers/pci/Kconfig"
2528
2529source "drivers/pci/pcie/Kconfig"
2530
2531#
2532# ISA support is now enabled via select.  Too many systems still have the one
2533# or other ISA chip on the board that users don't know about so don't expect
2534# users to choose the right thing ...
2535#
2536config ISA
2537	bool
2538
2539config EISA
2540	bool "EISA support"
2541	depends on HW_HAS_EISA
2542	select ISA
2543	select GENERIC_ISA_DMA
2544	---help---
2545	  The Extended Industry Standard Architecture (EISA) bus was
2546	  developed as an open alternative to the IBM MicroChannel bus.
2547
2548	  The EISA bus provided some of the features of the IBM MicroChannel
2549	  bus while maintaining backward compatibility with cards made for
2550	  the older ISA bus.  The EISA bus saw limited use between 1988 and
2551	  1995 when it was made obsolete by the PCI bus.
2552
2553	  Say Y here if you are building a kernel for an EISA-based machine.
2554
2555	  Otherwise, say N.
2556
2557source "drivers/eisa/Kconfig"
2558
2559config TC
2560	bool "TURBOchannel support"
2561	depends on MACH_DECSTATION
2562	help
2563	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2564	  processors.  TURBOchannel programming specifications are available
2565	  at:
2566	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2567	  and:
2568	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2569	  Linux driver support status is documented at:
2570	  <http://www.linux-mips.org/wiki/DECstation>
2571
2572config MMU
2573	bool
2574	default y
2575
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2576config I8253
2577	bool
2578	select CLKSRC_I8253
2579	select CLKEVT_I8253
2580	select MIPS_EXTERNAL_TIMER
2581
2582config ZONE_DMA
2583	bool
2584
2585config ZONE_DMA32
2586	bool
2587
2588source "drivers/pcmcia/Kconfig"
2589
2590source "drivers/pci/hotplug/Kconfig"
2591
2592config RAPIDIO
2593	tristate "RapidIO support"
2594	depends on PCI
2595	default n
2596	help
2597	  If you say Y here, the kernel will include drivers and
2598	  infrastructure code to support RapidIO interconnect devices.
2599
2600source "drivers/rapidio/Kconfig"
2601
2602endmenu
2603
2604menu "Executable file formats"
2605
2606source "fs/Kconfig.binfmt"
2607
2608config TRAD_SIGNALS
2609	bool
2610
2611config MIPS32_COMPAT
2612	bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2613	depends on 64BIT
2614	help
2615	  Select this option if you want Linux/MIPS 32-bit binary
2616	  compatibility. Since all software available for Linux/MIPS is
2617	  currently 32-bit you should say Y here.
2618
2619config COMPAT
2620	bool
2621	depends on MIPS32_COMPAT
2622	select ARCH_WANT_OLD_COMPAT_IPC
2623	default y
2624
2625config SYSVIPC_COMPAT
2626	bool
2627	depends on COMPAT && SYSVIPC
2628	default y
2629
2630config MIPS32_O32
2631	bool "Kernel support for o32 binaries"
2632	depends on MIPS32_COMPAT
 
 
 
2633	help
2634	  Select this option if you want to run o32 binaries.  These are pure
2635	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2636	  existing binaries are in this format.
2637
2638	  If unsure, say Y.
2639
2640config MIPS32_N32
2641	bool "Kernel support for n32 binaries"
2642	depends on MIPS32_COMPAT
 
 
 
2643	help
2644	  Select this option if you want to run n32 binaries.  These are
2645	  64-bit binaries using 32-bit quantities for addressing and certain
2646	  data that would normally be 64-bit.  They are used in special
2647	  cases.
2648
2649	  If unsure, say N.
2650
2651config BINFMT_ELF32
2652	bool
2653	default y if MIPS32_O32 || MIPS32_N32
2654
2655endmenu
2656
2657menu "Power management options"
2658
2659config ARCH_HIBERNATION_POSSIBLE
2660	def_bool y
2661	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2662
2663config ARCH_SUSPEND_POSSIBLE
2664	def_bool y
2665	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2666
2667source "kernel/power/Kconfig"
2668
2669endmenu
2670
2671config MIPS_EXTERNAL_TIMER
2672	bool
2673
2674if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2675menu "CPU Power Management"
2676source "drivers/cpufreq/Kconfig"
2677endmenu
2678endif
2679
2680source "net/Kconfig"
2681
2682source "drivers/Kconfig"
2683
2684source "drivers/firmware/Kconfig"
2685
2686source "fs/Kconfig"
2687
2688source "arch/mips/Kconfig.debug"
2689
2690source "security/Kconfig"
2691
2692source "crypto/Kconfig"
2693
2694source "lib/Kconfig"
2695
2696source "arch/mips/kvm/Kconfig"