1# SPDX-License-Identifier: GPL-2.0 2config SUPERH 3 def_bool y 4 select ARCH_32BIT_OFF_T 5 select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM && MMU 6 select ARCH_ENABLE_MEMORY_HOTREMOVE if SPARSEMEM && MMU 7 select ARCH_HAVE_CUSTOM_GPIO_H 8 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A) 9 select ARCH_HAS_BINFMT_FLAT if !MMU 10 select ARCH_HAS_GIGANTIC_PAGE 11 select ARCH_HAS_GCOV_PROFILE_ALL 12 select ARCH_HAS_PTE_SPECIAL 13 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 14 select ARCH_HIBERNATION_POSSIBLE if MMU 15 select ARCH_MIGHT_HAVE_PC_PARPORT 16 select ARCH_WANT_IPC_PARSE_VERSION 17 select CPU_NO_EFFICIENT_FFS 18 select DMA_DECLARE_COHERENT 19 select GENERIC_ATOMIC64 20 select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST 21 select GENERIC_IDLE_POLL_SETUP 22 select GENERIC_IRQ_SHOW 23 select GENERIC_PCI_IOMAP if PCI 24 select GENERIC_SCHED_CLOCK 25 select GENERIC_SMP_IDLE_THREAD 26 select GUP_GET_PTE_LOW_HIGH if X2TLB 27 select HAVE_ARCH_AUDITSYSCALL 28 select HAVE_ARCH_KGDB 29 select HAVE_ARCH_SECCOMP_FILTER 30 select HAVE_ARCH_TRACEHOOK 31 select HAVE_DEBUG_BUGVERBOSE 32 select HAVE_DEBUG_KMEMLEAK 33 select HAVE_DYNAMIC_FTRACE 34 select HAVE_FAST_GUP if MMU 35 select HAVE_FUNCTION_GRAPH_TRACER 36 select HAVE_FUNCTION_TRACER 37 select HAVE_FUTEX_CMPXCHG if FUTEX 38 select HAVE_FTRACE_MCOUNT_RECORD 39 select HAVE_HW_BREAKPOINT 40 select HAVE_IOREMAP_PROT if MMU && !X2TLB 41 select HAVE_KERNEL_BZIP2 42 select HAVE_KERNEL_GZIP 43 select HAVE_KERNEL_LZMA 44 select HAVE_KERNEL_LZO 45 select HAVE_KERNEL_XZ 46 select HAVE_KPROBES 47 select HAVE_KRETPROBES 48 select HAVE_MIXED_BREAKPOINTS_REGS 49 select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER 50 select HAVE_NMI 51 select HAVE_PATA_PLATFORM 52 select HAVE_PERF_EVENTS 53 select HAVE_REGS_AND_STACK_ACCESS_API 54 select HAVE_UID16 55 select HAVE_SOFTIRQ_ON_OWN_STACK if IRQSTACKS 56 select HAVE_STACKPROTECTOR 57 select HAVE_SYSCALL_TRACEPOINTS 58 select IRQ_FORCED_THREADING 59 select MAY_HAVE_SPARSE_IRQ 60 select MODULES_USE_ELF_RELA 61 select NEED_SG_DMA_LENGTH 62 select NO_DMA if !MMU && !DMA_COHERENT 63 select NO_GENERIC_PCI_IOPORT_MAP if PCI 64 select OLD_SIGACTION 65 select OLD_SIGSUSPEND 66 select PCI_DOMAINS if PCI 67 select PERF_EVENTS 68 select PERF_USE_VMALLOC 69 select RTC_LIB 70 select SET_FS 71 select SPARSE_IRQ 72 select TRACE_IRQFLAGS_SUPPORT 73 help 74 The SuperH is a RISC processor targeted for use in embedded systems 75 and consumer electronics; it was also used in the Sega Dreamcast 76 gaming console. The SuperH port has a home page at 77 <http://www.linux-sh.org/>. 78 79config GENERIC_BUG 80 def_bool y 81 depends on BUG 82 83config GENERIC_HWEIGHT 84 def_bool y 85 86config GENERIC_CALIBRATE_DELAY 87 bool 88 89config GENERIC_LOCKBREAK 90 def_bool y 91 depends on SMP && PREEMPTION 92 93config ARCH_SUSPEND_POSSIBLE 94 def_bool n 95 96config ARCH_HIBERNATION_POSSIBLE 97 def_bool n 98 99config SYS_SUPPORTS_APM_EMULATION 100 bool 101 select ARCH_SUSPEND_POSSIBLE 102 103config SYS_SUPPORTS_SMP 104 bool 105 106config SYS_SUPPORTS_NUMA 107 bool 108 109config STACKTRACE_SUPPORT 110 def_bool y 111 112config LOCKDEP_SUPPORT 113 def_bool y 114 115config ARCH_HAS_ILOG2_U32 116 def_bool n 117 118config ARCH_HAS_ILOG2_U64 119 def_bool n 120 121config NO_IOPORT_MAP 122 def_bool !PCI 123 depends on !SH_SH4202_MICRODEV && !SH_SHMIN && !SH_HP6XX && \ 124 !SH_SOLUTION_ENGINE 125 126config IO_TRAPPED 127 bool 128 129config SWAP_IO_SPACE 130 bool 131 132config DMA_COHERENT 133 bool 134 135config DMA_NONCOHERENT 136 def_bool !NO_DMA && !DMA_COHERENT 137 select ARCH_HAS_DMA_PREP_COHERENT 138 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 139 select DMA_DIRECT_REMAP 140 141config PGTABLE_LEVELS 142 default 3 if X2TLB 143 default 2 144 145menu "System type" 146 147# 148# Processor families 149# 150config CPU_SH2 151 bool 152 select SH_INTC 153 154config CPU_SH2A 155 bool 156 select CPU_SH2 157 select UNCACHED_MAPPING 158 159config CPU_J2 160 bool 161 select CPU_SH2 162 select OF 163 select OF_EARLY_FLATTREE 164 165config CPU_SH3 166 bool 167 select CPU_HAS_INTEVT 168 select CPU_HAS_SR_RB 169 select SH_INTC 170 select SYS_SUPPORTS_SH_TMU 171 172config CPU_SH4 173 bool 174 select ARCH_SUPPORTS_HUGETLBFS if MMU 175 select CPU_HAS_INTEVT 176 select CPU_HAS_SR_RB 177 select CPU_HAS_FPU if !CPU_SH4AL_DSP 178 select SH_INTC 179 select SYS_SUPPORTS_SH_TMU 180 181config CPU_SH4A 182 bool 183 select CPU_SH4 184 185config CPU_SH4AL_DSP 186 bool 187 select CPU_SH4A 188 select CPU_HAS_DSP 189 190config CPU_SHX2 191 bool 192 193config CPU_SHX3 194 bool 195 select DMA_COHERENT 196 select SYS_SUPPORTS_SMP 197 select SYS_SUPPORTS_NUMA 198 199config ARCH_SHMOBILE 200 bool 201 select ARCH_SUSPEND_POSSIBLE 202 select PM 203 204config CPU_HAS_PMU 205 depends on CPU_SH4 || CPU_SH4A 206 default y 207 bool 208 209choice 210 prompt "Processor sub-type selection" 211 212# 213# Processor subtypes 214# 215 216# SH-2 Processor Support 217 218config CPU_SUBTYPE_SH7619 219 bool "Support SH7619 processor" 220 select CPU_SH2 221 select SYS_SUPPORTS_SH_CMT 222 223config CPU_SUBTYPE_J2 224 bool "Support J2 processor" 225 select CPU_J2 226 select SYS_SUPPORTS_SMP 227 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 228 229# SH-2A Processor Support 230 231config CPU_SUBTYPE_SH7201 232 bool "Support SH7201 processor" 233 select CPU_SH2A 234 select CPU_HAS_FPU 235 select SYS_SUPPORTS_SH_MTU2 236 237config CPU_SUBTYPE_SH7203 238 bool "Support SH7203 processor" 239 select CPU_SH2A 240 select CPU_HAS_FPU 241 select SYS_SUPPORTS_SH_CMT 242 select SYS_SUPPORTS_SH_MTU2 243 select PINCTRL 244 245config CPU_SUBTYPE_SH7206 246 bool "Support SH7206 processor" 247 select CPU_SH2A 248 select SYS_SUPPORTS_SH_CMT 249 select SYS_SUPPORTS_SH_MTU2 250 251config CPU_SUBTYPE_SH7263 252 bool "Support SH7263 processor" 253 select CPU_SH2A 254 select CPU_HAS_FPU 255 select SYS_SUPPORTS_SH_CMT 256 select SYS_SUPPORTS_SH_MTU2 257 258config CPU_SUBTYPE_SH7264 259 bool "Support SH7264 processor" 260 select CPU_SH2A 261 select CPU_HAS_FPU 262 select SYS_SUPPORTS_SH_CMT 263 select SYS_SUPPORTS_SH_MTU2 264 select PINCTRL 265 266config CPU_SUBTYPE_SH7269 267 bool "Support SH7269 processor" 268 select CPU_SH2A 269 select CPU_HAS_FPU 270 select SYS_SUPPORTS_SH_CMT 271 select SYS_SUPPORTS_SH_MTU2 272 select PINCTRL 273 274config CPU_SUBTYPE_MXG 275 bool "Support MX-G processor" 276 select CPU_SH2A 277 select SYS_SUPPORTS_SH_MTU2 278 help 279 Select MX-G if running on an R8A03022BG part. 280 281# SH-3 Processor Support 282 283config CPU_SUBTYPE_SH7705 284 bool "Support SH7705 processor" 285 select CPU_SH3 286 287config CPU_SUBTYPE_SH7706 288 bool "Support SH7706 processor" 289 select CPU_SH3 290 help 291 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 292 293config CPU_SUBTYPE_SH7707 294 bool "Support SH7707 processor" 295 select CPU_SH3 296 help 297 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 298 299config CPU_SUBTYPE_SH7708 300 bool "Support SH7708 processor" 301 select CPU_SH3 302 help 303 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 304 if you have a 100 Mhz SH-3 HD6417708R CPU. 305 306config CPU_SUBTYPE_SH7709 307 bool "Support SH7709 processor" 308 select CPU_SH3 309 help 310 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 311 312config CPU_SUBTYPE_SH7710 313 bool "Support SH7710 processor" 314 select CPU_SH3 315 select CPU_HAS_DSP 316 help 317 Select SH7710 if you have a SH3-DSP SH7710 CPU. 318 319config CPU_SUBTYPE_SH7712 320 bool "Support SH7712 processor" 321 select CPU_SH3 322 select CPU_HAS_DSP 323 help 324 Select SH7712 if you have a SH3-DSP SH7712 CPU. 325 326config CPU_SUBTYPE_SH7720 327 bool "Support SH7720 processor" 328 select CPU_SH3 329 select CPU_HAS_DSP 330 select SYS_SUPPORTS_SH_CMT 331 select USB_OHCI_SH if USB_OHCI_HCD 332 select PINCTRL 333 help 334 Select SH7720 if you have a SH3-DSP SH7720 CPU. 335 336config CPU_SUBTYPE_SH7721 337 bool "Support SH7721 processor" 338 select CPU_SH3 339 select CPU_HAS_DSP 340 select SYS_SUPPORTS_SH_CMT 341 select USB_OHCI_SH if USB_OHCI_HCD 342 help 343 Select SH7721 if you have a SH3-DSP SH7721 CPU. 344 345# SH-4 Processor Support 346 347config CPU_SUBTYPE_SH7750 348 bool "Support SH7750 processor" 349 select CPU_SH4 350 help 351 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 352 353config CPU_SUBTYPE_SH7091 354 bool "Support SH7091 processor" 355 select CPU_SH4 356 help 357 Select SH7091 if you have an SH-4 based Sega device (such as 358 the Dreamcast, Naomi, and Naomi 2). 359 360config CPU_SUBTYPE_SH7750R 361 bool "Support SH7750R processor" 362 select CPU_SH4 363 364config CPU_SUBTYPE_SH7750S 365 bool "Support SH7750S processor" 366 select CPU_SH4 367 368config CPU_SUBTYPE_SH7751 369 bool "Support SH7751 processor" 370 select CPU_SH4 371 help 372 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 373 or if you have a HD6417751R CPU. 374 375config CPU_SUBTYPE_SH7751R 376 bool "Support SH7751R processor" 377 select CPU_SH4 378 379config CPU_SUBTYPE_SH7760 380 bool "Support SH7760 processor" 381 select CPU_SH4 382 383config CPU_SUBTYPE_SH4_202 384 bool "Support SH4-202 processor" 385 select CPU_SH4 386 387# SH-4A Processor Support 388 389config CPU_SUBTYPE_SH7723 390 bool "Support SH7723 processor" 391 select CPU_SH4A 392 select CPU_SHX2 393 select ARCH_SHMOBILE 394 select ARCH_SPARSEMEM_ENABLE 395 select SYS_SUPPORTS_SH_CMT 396 select PINCTRL 397 help 398 Select SH7723 if you have an SH-MobileR2 CPU. 399 400config CPU_SUBTYPE_SH7724 401 bool "Support SH7724 processor" 402 select CPU_SH4A 403 select CPU_SHX2 404 select ARCH_SHMOBILE 405 select ARCH_SPARSEMEM_ENABLE 406 select SYS_SUPPORTS_SH_CMT 407 select PINCTRL 408 help 409 Select SH7724 if you have an SH-MobileR2R CPU. 410 411config CPU_SUBTYPE_SH7734 412 bool "Support SH7734 processor" 413 select CPU_SH4A 414 select CPU_SHX2 415 select PINCTRL 416 help 417 Select SH7734 if you have a SH4A SH7734 CPU. 418 419config CPU_SUBTYPE_SH7757 420 bool "Support SH7757 processor" 421 select CPU_SH4A 422 select CPU_SHX2 423 select PINCTRL 424 help 425 Select SH7757 if you have a SH4A SH7757 CPU. 426 427config CPU_SUBTYPE_SH7763 428 bool "Support SH7763 processor" 429 select CPU_SH4A 430 select USB_OHCI_SH if USB_OHCI_HCD 431 help 432 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 433 434config CPU_SUBTYPE_SH7770 435 bool "Support SH7770 processor" 436 select CPU_SH4A 437 438config CPU_SUBTYPE_SH7780 439 bool "Support SH7780 processor" 440 select CPU_SH4A 441 442config CPU_SUBTYPE_SH7785 443 bool "Support SH7785 processor" 444 select CPU_SH4A 445 select CPU_SHX2 446 select ARCH_SPARSEMEM_ENABLE 447 select SYS_SUPPORTS_NUMA 448 select PINCTRL 449 450config CPU_SUBTYPE_SH7786 451 bool "Support SH7786 processor" 452 select CPU_SH4A 453 select CPU_SHX3 454 select CPU_HAS_PTEAEX 455 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 456 select USB_OHCI_SH if USB_OHCI_HCD 457 select USB_EHCI_SH if USB_EHCI_HCD 458 select PINCTRL 459 460config CPU_SUBTYPE_SHX3 461 bool "Support SH-X3 processor" 462 select CPU_SH4A 463 select CPU_SHX3 464 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 465 select GPIOLIB 466 select PINCTRL 467 468# SH4AL-DSP Processor Support 469 470config CPU_SUBTYPE_SH7343 471 bool "Support SH7343 processor" 472 select CPU_SH4AL_DSP 473 select ARCH_SHMOBILE 474 select SYS_SUPPORTS_SH_CMT 475 476config CPU_SUBTYPE_SH7722 477 bool "Support SH7722 processor" 478 select CPU_SH4AL_DSP 479 select CPU_SHX2 480 select ARCH_SHMOBILE 481 select ARCH_SPARSEMEM_ENABLE 482 select SYS_SUPPORTS_NUMA 483 select SYS_SUPPORTS_SH_CMT 484 select PINCTRL 485 486config CPU_SUBTYPE_SH7366 487 bool "Support SH7366 processor" 488 select CPU_SH4AL_DSP 489 select CPU_SHX2 490 select ARCH_SHMOBILE 491 select ARCH_SPARSEMEM_ENABLE 492 select SYS_SUPPORTS_NUMA 493 select SYS_SUPPORTS_SH_CMT 494 495endchoice 496 497source "arch/sh/mm/Kconfig" 498 499source "arch/sh/Kconfig.cpu" 500 501source "arch/sh/boards/Kconfig" 502 503menu "Timer and clock configuration" 504 505config SH_PCLK_FREQ 506 int "Peripheral clock frequency (in Hz)" 507 depends on SH_CLK_CPG_LEGACY 508 default "31250000" if CPU_SUBTYPE_SH7619 509 default "33333333" if CPU_SUBTYPE_SH7770 || \ 510 CPU_SUBTYPE_SH7760 || \ 511 CPU_SUBTYPE_SH7705 || \ 512 CPU_SUBTYPE_SH7203 || \ 513 CPU_SUBTYPE_SH7206 || \ 514 CPU_SUBTYPE_SH7263 || \ 515 CPU_SUBTYPE_MXG 516 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 517 default "66000000" if CPU_SUBTYPE_SH4_202 518 default "50000000" 519 help 520 This option is used to specify the peripheral clock frequency. 521 This is necessary for determining the reference clock value on 522 platforms lacking an RTC. 523 524config SH_CLK_CPG 525 def_bool y 526 527config SH_CLK_CPG_LEGACY 528 depends on SH_CLK_CPG 529 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \ 530 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \ 531 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \ 532 !CPU_SUBTYPE_SH7269 533 534endmenu 535 536menu "CPU Frequency scaling" 537source "drivers/cpufreq/Kconfig" 538endmenu 539 540source "arch/sh/drivers/Kconfig" 541 542endmenu 543 544menu "Kernel features" 545 546source "kernel/Kconfig.hz" 547 548config KEXEC 549 bool "kexec system call (EXPERIMENTAL)" 550 depends on MMU 551 select KEXEC_CORE 552 help 553 kexec is a system call that implements the ability to shutdown your 554 current kernel, and to start another kernel. It is like a reboot 555 but it is independent of the system firmware. And like a reboot 556 you can start any kernel with it, not just Linux. 557 558 The name comes from the similarity to the exec system call. 559 560 It is an ongoing process to be certain the hardware in a machine 561 is properly shutdown, so do not be surprised if this code does not 562 initially work for you. As of this writing the exact hardware 563 interface is strongly in flux, so no good recommendation can be 564 made. 565 566config CRASH_DUMP 567 bool "kernel crash dumps (EXPERIMENTAL)" 568 depends on BROKEN_ON_SMP 569 help 570 Generate crash dump after being started by kexec. 571 This should be normally only set in special crash dump kernels 572 which are loaded in the main kernel with kexec-tools into 573 a specially reserved region and then later executed after 574 a crash by kdump/kexec. The crash dump kernel must be compiled 575 to a memory address not used by the main kernel using 576 PHYSICAL_START. 577 578 For more details see Documentation/admin-guide/kdump/kdump.rst 579 580config KEXEC_JUMP 581 bool "kexec jump (EXPERIMENTAL)" 582 depends on KEXEC && HIBERNATION 583 help 584 Jump between original kernel and kexeced kernel and invoke 585 code via KEXEC 586 587config PHYSICAL_START 588 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) 589 default MEMORY_START 590 help 591 This gives the physical address where the kernel is loaded 592 and is ordinarily the same as MEMORY_START. 593 594 Different values are primarily used in the case of kexec on panic 595 where the fail safe kernel needs to run at a different address 596 than the panic-ed kernel. 597 598config SMP 599 bool "Symmetric multi-processing support" 600 depends on SYS_SUPPORTS_SMP 601 help 602 This enables support for systems with more than one CPU. If you have 603 a system with only one CPU, say N. If you have a system with more 604 than one CPU, say Y. 605 606 If you say N here, the kernel will run on uni- and multiprocessor 607 machines, but will use only one CPU of a multiprocessor machine. If 608 you say Y here, the kernel will run on many, but not all, 609 uniprocessor machines. On a uniprocessor machine, the kernel 610 will run faster if you say N here. 611 612 People using multiprocessor machines who say Y here should also say 613 Y to "Enhanced Real Time Clock Support", below. 614 615 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO 616 available at <https://www.tldp.org/docs.html#howto>. 617 618 If you don't know what to do here, say N. 619 620config NR_CPUS 621 int "Maximum number of CPUs (2-32)" 622 range 2 32 623 depends on SMP 624 default "4" if CPU_SUBTYPE_SHX3 625 default "2" 626 help 627 This allows you to specify the maximum number of CPUs which this 628 kernel will support. The maximum supported value is 32 and the 629 minimum value which makes sense is 2. 630 631 This is purely to save memory - each supported CPU adds 632 approximately eight kilobytes to the kernel image. 633 634config HOTPLUG_CPU 635 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 636 depends on SMP 637 help 638 Say Y here to experiment with turning CPUs off and on. CPUs 639 can be controlled through /sys/devices/system/cpu. 640 641config GUSA 642 def_bool y 643 depends on !SMP 644 help 645 This enables support for gUSA (general UserSpace Atomicity). 646 This is the default implementation for both UP and non-ll/sc 647 CPUs, and is used by the libc, amongst others. 648 649 For additional information, design information can be found 650 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 651 652 This should only be disabled for special cases where alternate 653 atomicity implementations exist. 654 655config GUSA_RB 656 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 657 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 658 help 659 Enabling this option will allow the kernel to implement some 660 atomic operations using a software implementation of load-locked/ 661 store-conditional (LLSC). On machines which do not have hardware 662 LLSC, this should be more efficient than the other alternative of 663 disabling interrupts around the atomic sequence. 664 665config HW_PERF_EVENTS 666 bool "Enable hardware performance counter support for perf events" 667 depends on PERF_EVENTS && CPU_HAS_PMU 668 default y 669 help 670 Enable hardware performance counter support for perf events. If 671 disabled, perf events will use software events only. 672 673source "drivers/sh/Kconfig" 674 675endmenu 676 677menu "Boot options" 678 679config USE_BUILTIN_DTB 680 bool "Use builtin DTB" 681 default n 682 depends on SH_DEVICE_TREE 683 help 684 Link a device tree blob for particular hardware into the kernel, 685 suppressing use of the DTB pointer provided by the bootloader. 686 This option should only be used with legacy bootloaders that are 687 not capable of providing a DTB to the kernel, or for experimental 688 hardware without stable device tree bindings. 689 690config BUILTIN_DTB_SOURCE 691 string "Source file for builtin DTB" 692 default "" 693 depends on USE_BUILTIN_DTB 694 help 695 Base name (without suffix, relative to arch/sh/boot/dts) for the 696 a DTS file that will be used to produce the DTB linked into the 697 kernel. 698 699config ZERO_PAGE_OFFSET 700 hex 701 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 702 SH_7751_SOLUTION_ENGINE 703 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 704 default "0x00002000" if PAGE_SIZE_8KB 705 default "0x00001000" 706 help 707 This sets the default offset of zero page. 708 709config BOOT_LINK_OFFSET 710 hex 711 default "0x00210000" if SH_SHMIN 712 default "0x00810000" if SH_7780_SOLUTION_ENGINE 713 default "0x009e0000" if SH_TITAN 714 default "0x01800000" if SH_SDK7780 715 default "0x02000000" if SH_EDOSK7760 716 default "0x00800000" 717 help 718 This option allows you to set the link address offset of the zImage. 719 This can be useful if you are on a board which has a small amount of 720 memory. 721 722config ENTRY_OFFSET 723 hex 724 default "0x00001000" if PAGE_SIZE_4KB 725 default "0x00002000" if PAGE_SIZE_8KB 726 default "0x00004000" if PAGE_SIZE_16KB 727 default "0x00010000" if PAGE_SIZE_64KB 728 default "0x00000000" 729 730config ROMIMAGE_MMCIF 731 bool "Include MMCIF loader in romImage (EXPERIMENTAL)" 732 depends on CPU_SUBTYPE_SH7724 733 help 734 Say Y here to include experimental MMCIF loading code in 735 romImage. With this enabled it is possible to write the romImage 736 kernel image to an MMC card and boot the kernel straight from 737 the reset vector. At reset the processor Mask ROM will load the 738 first part of the romImage which in turn loads the rest the kernel 739 image to RAM using the MMCIF hardware block. 740 741choice 742 prompt "Kernel command line" 743 optional 744 default CMDLINE_OVERWRITE 745 help 746 Setting this option allows the kernel command line arguments 747 to be set. 748 749config CMDLINE_OVERWRITE 750 bool "Overwrite bootloader kernel arguments" 751 help 752 Given string will overwrite any arguments passed in by 753 a bootloader. 754 755config CMDLINE_EXTEND 756 bool "Extend bootloader kernel arguments" 757 help 758 Given string will be concatenated with arguments passed in 759 by a bootloader. 760 761endchoice 762 763config CMDLINE 764 string "Kernel command line arguments string" 765 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 766 default "console=ttySC1,115200" 767 768endmenu 769 770menu "Bus options" 771 772config SUPERHYWAY 773 tristate "SuperHyway Bus support" 774 depends on CPU_SUBTYPE_SH4_202 775 776config MAPLE 777 bool "Maple Bus support" 778 depends on SH_DREAMCAST 779 help 780 The Maple Bus is SEGA's serial communication bus for peripherals 781 on the Dreamcast. Without this bus support you won't be able to 782 get your Dreamcast keyboard etc to work, so most users 783 probably want to say 'Y' here, unless you are only using the 784 Dreamcast with a serial line terminal or a remote network 785 connection. 786 787endmenu 788 789menu "Power management options (EXPERIMENTAL)" 790 791source "kernel/power/Kconfig" 792 793source "drivers/cpuidle/Kconfig" 794 795endmenu 796