arch/mn10300/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 config MN10300
   3         def_bool y
   4         select HAVE_EXIT_THREAD
   5         select HAVE_OPROFILE
   6         select HAVE_UID16
   7         select GENERIC_IRQ_SHOW
   8         select ARCH_WANT_IPC_PARSE_VERSION
   9         select HAVE_ARCH_TRACEHOOK
  10         select HAVE_ARCH_KGDB
  11         select GENERIC_ATOMIC64
  12         select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
  13         select VIRT_TO_BUS
  14         select GENERIC_CLOCKEVENTS
  15         select MODULES_USE_ELF_RELA
  16         select OLD_SIGSUSPEND3
  17         select OLD_SIGACTION
  18         select HAVE_DEBUG_STACKOVERFLOW
  19         select ARCH_NO_COHERENT_DMA_MMAP
  20
  21 config AM33_2
  22         def_bool n
  23
  24 config AM33_3
  25         def_bool n
  26
  27 config AM34_2
  28         def_bool n
  29         select MN10300_HAS_ATOMIC_OPS_UNIT
  30         select MN10300_HAS_CACHE_SNOOP
  31
  32 config ERRATUM_NEED_TO_RELOAD_MMUCTR
  33         def_bool y if AM33_3 || AM34_2
  34
  35 config MMU
  36         def_bool y
  37
  38 config HIGHMEM
  39         def_bool n
  40
  41 config NUMA
  42         def_bool n
  43
  44 config RWSEM_GENERIC_SPINLOCK
  45         def_bool y
  46
  47 config RWSEM_XCHGADD_ALGORITHM
  48         bool
  49
  50 config GENERIC_CALIBRATE_DELAY
  51         def_bool y
  52
  53 config GENERIC_HWEIGHT
  54         def_bool y
  55
  56 config GENERIC_BUG
  57         def_bool y
  58         depends on BUG
  59
  60 config QUICKLIST
  61         def_bool y
  62
  63 config ARCH_HAS_ILOG2_U32
  64         def_bool y
  65
  66 config HOTPLUG_CPU
  67         def_bool n
  68
  69 source "init/Kconfig"
  70
  71 source "kernel/Kconfig.freezer"
  72
  73
  74 menu "Panasonic MN10300 system setup"
  75
  76 choice
  77         prompt "Unit type"
  78         default MN10300_UNIT_ASB2303
  79         help
  80           This option specifies board for which the kernel will be
  81           compiled. It affects the external peripherals catered for.
  82
  83 config MN10300_UNIT_ASB2303
  84         bool "ASB2303"
  85
  86 config MN10300_UNIT_ASB2305
  87         bool "ASB2305"
  88
  89 config MN10300_UNIT_ASB2364
  90         bool "ASB2364"
  91         select SMSC911X_ARCH_HOOKS if SMSC911X
  92
  93 endchoice
  94
  95 choice
  96         prompt "Processor support"
  97         default MN10300_PROC_MN103E010
  98         help
  99           This option specifies the processor for which the kernel will be
 100           compiled. It affects the on-chip peripherals catered for.
 101
 102 config MN10300_PROC_MN103E010
 103         bool "MN103E010"
 104         depends on MN10300_UNIT_ASB2303 || MN10300_UNIT_ASB2305
 105         select AM33_2
 106         select MN10300_PROC_HAS_TTYSM0
 107         select MN10300_PROC_HAS_TTYSM1
 108         select MN10300_PROC_HAS_TTYSM2
 109
 110 config MN10300_PROC_MN2WS0050
 111         bool "MN2WS0050"
 112         depends on MN10300_UNIT_ASB2364
 113         select AM34_2
 114         select MN10300_PROC_HAS_TTYSM0
 115         select MN10300_PROC_HAS_TTYSM1
 116         select MN10300_PROC_HAS_TTYSM2
 117
 118 endchoice
 119
 120 config MN10300_HAS_ATOMIC_OPS_UNIT
 121         def_bool n
 122         help
 123           This should be enabled if the processor has an atomic ops unit
 124           capable of doing LL/SC equivalent operations.
 125
 126 config FPU
 127         bool "FPU present"
 128         default y
 129         depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050
 130
 131 config LAZY_SAVE_FPU
 132         bool "Save FPU state lazily"
 133         default y
 134         depends on FPU && !SMP
 135         help
 136           Enable this to be lazy in the saving of the FPU state to the owning
 137           task's thread struct.  This is useful if most tasks on the system
 138           don't use the FPU as only those tasks that use it will pass it
 139           between them, and the state needn't be saved for a task that isn't
 140           using it.
 141
 142           This can't be so easily used on SMP as the process that owns the FPU
 143           state on a CPU may be currently running on another CPU, so for the
 144           moment, it is disabled.
 145
 146 source "arch/mn10300/mm/Kconfig.cache"
 147
 148 config MN10300_TLB_USE_PIDR
 149         def_bool y
 150
 151 menu "Memory layout options"
 152
 153 config KERNEL_RAM_BASE_ADDRESS
 154         hex "Base address of kernel RAM"
 155         default "0x90000000"
 156
 157 config INTERRUPT_VECTOR_BASE
 158         hex "Base address of vector table"
 159         default "0x90000000"
 160         help
 161           The base address of the vector table will be programmed into
 162           the TBR register. It must be on 16MiB address boundary.
 163
 164 config KERNEL_TEXT_ADDRESS
 165         hex "Base address of kernel"
 166         default "0x90001000"
 167
 168 config KERNEL_ZIMAGE_BASE_ADDRESS
 169         hex "Base address of compressed vmlinux image"
 170         default "0x50700000"
 171
 172 config BOOT_STACK_OFFSET
 173         hex
 174         default "0xF00" if SMP
 175         default "0xFF0" if !SMP
 176
 177 config BOOT_STACK_SIZE
 178         hex
 179         depends on SMP
 180         default "0x100"
 181 endmenu
 182
 183 config SMP
 184         bool "Symmetric multi-processing support"
 185         default y
 186         depends on MN10300_PROC_MN2WS0050
 187         ---help---
 188           This enables support for systems with more than one CPU. If you have
 189           a system with only one CPU, say N. If you have a system with more
 190           than one CPU, say Y.
 191
 192           If you say N here, the kernel will run on uni- and multiprocessor
 193           machines, but will use only one CPU of a multiprocessor machine. If
 194           you say Y here, the kernel will run on many, but not all,
 195           uniprocessor machines. On a uniprocessor machine, the kernel
 196           will run faster if you say N here.
 197
 198           See also <file:Documentation/x86/i386/IO-APIC.txt>,
 199           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
 200           <http://www.tldp.org/docs.html#howto>.
 201
 202           If you don't know what to do here, say N.
 203
 204 config NR_CPUS
 205         int
 206         depends on SMP
 207         default "2"
 208
 209 source "kernel/Kconfig.preempt"
 210
 211 config MN10300_CURRENT_IN_E2
 212         bool "Hold current task address in E2 register"
 213         depends on !SMP
 214         default y
 215         help
 216           This option removes the E2/R2 register from the set available to gcc
 217           for normal use and instead uses it to store the address of the
 218           current process's task_struct whilst in the kernel.
 219
 220           This means the kernel doesn't need to calculate the address each time
 221           "current" is used (take SP, AND with mask and dereference pointer
 222           just to get the address), and instead can just use E2+offset
 223           addressing each time.
 224
 225           This has no effect on userspace.
 226
 227 config MN10300_USING_JTAG
 228         bool "Using JTAG to debug kernel"
 229         default y
 230         help
 231           This options indicates that JTAG will be used to debug the kernel. It
 232           suppresses the use of certain hardware debugging features, such as
 233           single-stepping, which are taken over completely by the JTAG unit.
 234
 235 source "kernel/Kconfig.hz"
 236
 237 config MN10300_RTC
 238         bool "Using MN10300 RTC"
 239         depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050
 240         select RTC_CLASS
 241         select RTC_DRV_CMOS
 242         select RTC_SYSTOHC
 243         default n
 244         help
 245           This option enables support for the RTC, thus enabling time to be
 246           tracked, even when system is powered down. This is available on-chip
 247           on the MN103E010.
 248
 249 config MN10300_WD_TIMER
 250         bool "Using MN10300 watchdog timer"
 251         default y
 252         help
 253           This options indicates that the watchdog timer will be used.
 254
 255 config PCI
 256         bool "Use PCI"
 257         depends on MN10300_UNIT_ASB2305
 258         default y
 259         select GENERIC_PCI_IOMAP
 260         help
 261           Some systems (such as the ASB2305) have PCI onboard. If you have one
 262           of these boards and you wish to use the PCI facilities, say Y here.
 263
 264           The PCI-HOWTO, available from
 265           <http://www.tldp.org/docs.html#howto>, contains valuable
 266           information about which PCI hardware does work under Linux and which
 267           doesn't.
 268
 269 source "drivers/pci/Kconfig"
 270
 271 source "drivers/pcmcia/Kconfig"
 272
 273 menu "MN10300 internal serial options"
 274
 275 config MN10300_PROC_HAS_TTYSM0
 276         bool
 277         default n
 278
 279 config MN10300_PROC_HAS_TTYSM1
 280         bool
 281         default n
 282
 283 config MN10300_PROC_HAS_TTYSM2
 284         bool
 285         default n
 286
 287 config MN10300_TTYSM
 288         bool "Support for ttySM serial ports"
 289         depends on MN10300
 290         default y
 291         select SERIAL_CORE
 292         help
 293           This option enables support for the on-chip serial ports that the
 294           MN10300 has available.
 295
 296 config MN10300_TTYSM_CONSOLE
 297         bool "Support for console on ttySM serial ports"
 298         depends on MN10300_TTYSM
 299         select SERIAL_CORE_CONSOLE
 300         help
 301           This option enables support for a console on the on-chip serial ports
 302           that the MN10300 has available.
 303
 304 #
 305 # /dev/ttySM0
 306 #
 307 config MN10300_TTYSM0
 308         bool "Enable SIF0 (/dev/ttySM0)"
 309         depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM0
 310         help
 311           Enable access to SIF0 through /dev/ttySM0 or gdb-stub
 312
 313 choice
 314         prompt "Select the timer to supply the clock for SIF0"
 315         default MN10300_TTYSM0_TIMER8
 316         depends on MN10300_TTYSM0
 317
 318 config MN10300_TTYSM0_TIMER8
 319         bool "Use timer 8 (16-bit)"
 320
 321 config MN10300_TTYSM0_TIMER2
 322         bool "Use timer 2 (8-bit)"
 323
 324 endchoice
 325
 326 #
 327 # /dev/ttySM1
 328 #
 329 config MN10300_TTYSM1
 330         bool "Enable SIF1 (/dev/ttySM1)"
 331         depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM1
 332         help
 333           Enable access to SIF1 through /dev/ttySM1 or gdb-stub
 334
 335 choice
 336         prompt "Select the timer to supply the clock for SIF1"
 337         default MN10300_TTYSM1_TIMER12 \
 338                 if !(AM33_2 || AM33_3)
 339         default MN10300_TTYSM1_TIMER9 \
 340                 if AM33_2 || AM33_3
 341         depends on MN10300_TTYSM1
 342
 343 config MN10300_TTYSM1_TIMER12
 344         bool "Use timer 12 (16-bit)"
 345         depends on !(AM33_2 || AM33_3)
 346
 347 config MN10300_TTYSM1_TIMER9
 348         bool "Use timer 9 (16-bit)"
 349         depends on AM33_2 || AM33_3
 350
 351 config MN10300_TTYSM1_TIMER3
 352         bool "Use timer 3 (8-bit)"
 353         depends on AM33_2 || AM33_3
 354
 355 endchoice
 356
 357 #
 358 # /dev/ttySM2
 359 #
 360 config MN10300_TTYSM2
 361         bool "Enable SIF2 (/dev/ttySM2)"
 362         depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM2
 363         help
 364           Enable access to SIF2 through /dev/ttySM2 or gdb-stub
 365
 366 choice
 367         prompt "Select the timer to supply the clock for SIF2"
 368         default MN10300_TTYSM2_TIMER3 \
 369                 if !(AM33_2 || AM33_3)
 370         default MN10300_TTYSM2_TIMER10 \
 371                 if AM33_2 || AM33_3
 372         depends on MN10300_TTYSM2
 373
 374 config MN10300_TTYSM2_TIMER9
 375         bool "Use timer 9 (16-bit)"
 376         depends on !(AM33_2 || AM33_3)
 377
 378 config MN10300_TTYSM2_TIMER1
 379         bool "Use timer 1 (8-bit)"
 380         depends on !(AM33_2 || AM33_3)
 381
 382 config MN10300_TTYSM2_TIMER3
 383         bool "Use timer 3 (8-bit)"
 384         depends on !(AM33_2 || AM33_3)
 385
 386 config MN10300_TTYSM2_TIMER10
 387         bool "Use timer 10 (16-bit)"
 388         depends on AM33_2 || AM33_3
 389
 390 endchoice
 391
 392 config MN10300_TTYSM2_CTS
 393         bool "Enable the use of the CTS line /dev/ttySM2"
 394         depends on MN10300_TTYSM2 && AM33_2
 395
 396 endmenu
 397
 398 menu "Interrupt request priority options"
 399
 400 comment "[!] NOTE: A lower number/level indicates a higher priority (0 is highest, 6 is lowest)"
 401
 402 comment "____Non-maskable interrupt levels____"
 403 comment "The following must be set to a higher priority than local_irq_disable() and on-chip serial"
 404
 405 config DEBUGGER_IRQ_LEVEL
 406         int "DEBUGGER interrupt priority"
 407         depends on KERNEL_DEBUGGER
 408         range 0 1 if LINUX_CLI_LEVEL = 2
 409         range 0 2 if LINUX_CLI_LEVEL = 3
 410         range 0 3 if LINUX_CLI_LEVEL = 4
 411         range 0 4 if LINUX_CLI_LEVEL = 5
 412         range 0 5 if LINUX_CLI_LEVEL = 6
 413         default 0
 414
 415 comment "The following must be set to a higher priority than local_irq_disable()"
 416
 417 config MN10300_SERIAL_IRQ_LEVEL
 418         int "MN10300 on-chip serial interrupt priority"
 419         depends on MN10300_TTYSM
 420         range 1 1 if LINUX_CLI_LEVEL = 2
 421         range 1 2 if LINUX_CLI_LEVEL = 3
 422         range 1 3 if LINUX_CLI_LEVEL = 4
 423         range 1 4 if LINUX_CLI_LEVEL = 5
 424         range 1 5 if LINUX_CLI_LEVEL = 6
 425         default 1
 426
 427 comment "-"
 428 comment "____Maskable interrupt levels____"
 429
 430 config LINUX_CLI_LEVEL
 431         int "The highest interrupt priority excluded by local_irq_disable() (2-6)"
 432         range 2 6
 433         default 2
 434         help
 435           local_irq_disable() doesn't actually disable maskable interrupts -
 436           what it does is restrict the levels of interrupt which are permitted
 437           (a lower level indicates a higher priority) by lowering the value in
 438           EPSW.IM from 7.  Any interrupt is permitted for which the level is
 439           lower than EPSW.IM.
 440
 441           Certain interrupts, such as DEBUGGER and virtual MN10300 on-chip
 442           serial DMA interrupts are allowed to interrupt normal disabled
 443           sections.
 444
 445 comment "The following must be set to a equal to or lower priority than LINUX_CLI_LEVEL"
 446
 447 config TIMER_IRQ_LEVEL
 448         int "Kernel timer interrupt priority"
 449         range LINUX_CLI_LEVEL 6
 450         default 4
 451
 452 config PCI_IRQ_LEVEL
 453         int "PCI interrupt priority"
 454         depends on PCI
 455         range LINUX_CLI_LEVEL 6
 456         default 5
 457
 458 config ETHERNET_IRQ_LEVEL
 459         int "Ethernet interrupt priority"
 460         depends on SMC91X || SMC911X || SMSC911X
 461         range LINUX_CLI_LEVEL 6
 462         default 6
 463
 464 config EXT_SERIAL_IRQ_LEVEL
 465         int "External serial port interrupt priority"
 466         depends on SERIAL_8250
 467         range LINUX_CLI_LEVEL 6
 468         default 6
 469
 470 endmenu
 471
 472 source "mm/Kconfig"
 473
 474 menu "Power management options"
 475 source kernel/power/Kconfig
 476 endmenu
 477
 478 endmenu
 479
 480
 481 menu "Executable formats"
 482
 483 source "fs/Kconfig.binfmt"
 484
 485 endmenu
 486
 487 source "net/Kconfig"
 488
 489 source "drivers/Kconfig"
 490
 491 source "fs/Kconfig"
 492
 493 source "arch/mn10300/Kconfig.debug"
 494
 495 source "security/Kconfig"
 496
 497 source "crypto/Kconfig"
 498
 499 source "lib/Kconfig"