1# SPDX-License-Identifier: GPL-2.0 2config SUPERH 3 def_bool y 4 select ARCH_HAS_BINFMT_FLAT if !MMU 5 select ARCH_HAS_PTE_SPECIAL 6 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 7 select ARCH_MIGHT_HAVE_PC_PARPORT 8 select HAVE_PATA_PLATFORM 9 select CLKDEV_LOOKUP 10 select DMA_DECLARE_COHERENT 11 select HAVE_IDE if HAS_IOPORT_MAP 12 select HAVE_MEMBLOCK_NODE_MAP 13 select HAVE_OPROFILE 14 select HAVE_ARCH_TRACEHOOK 15 select HAVE_PERF_EVENTS 16 select HAVE_DEBUG_BUGVERBOSE 17 select HAVE_FAST_GUP if MMU 18 select ARCH_HAVE_CUSTOM_GPIO_H 19 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A) 20 select ARCH_HAS_GCOV_PROFILE_ALL 21 select PERF_USE_VMALLOC 22 select HAVE_DEBUG_KMEMLEAK 23 select HAVE_KERNEL_GZIP 24 select CPU_NO_EFFICIENT_FFS 25 select HAVE_KERNEL_BZIP2 26 select HAVE_KERNEL_LZMA 27 select HAVE_KERNEL_XZ 28 select HAVE_KERNEL_LZO 29 select HAVE_UID16 30 select ARCH_WANT_IPC_PARSE_VERSION 31 select HAVE_SYSCALL_TRACEPOINTS 32 select HAVE_REGS_AND_STACK_ACCESS_API 33 select MAY_HAVE_SPARSE_IRQ 34 select IRQ_FORCED_THREADING 35 select RTC_LIB 36 select GENERIC_ATOMIC64 37 select GENERIC_IRQ_SHOW 38 select GENERIC_SMP_IDLE_THREAD 39 select GENERIC_IDLE_POLL_SETUP 40 select GENERIC_CLOCKEVENTS 41 select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST 42 select GENERIC_PCI_IOMAP if PCI 43 select GENERIC_SCHED_CLOCK 44 select GENERIC_STRNCPY_FROM_USER 45 select GENERIC_STRNLEN_USER 46 select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER 47 select MODULES_USE_ELF_RELA 48 select NO_GENERIC_PCI_IOPORT_MAP if PCI 49 select OLD_SIGSUSPEND 50 select OLD_SIGACTION 51 select PCI_DOMAINS if PCI 52 select HAVE_ARCH_AUDITSYSCALL 53 select HAVE_FUTEX_CMPXCHG if FUTEX 54 select HAVE_NMI 55 select NEED_SG_DMA_LENGTH 56 select ARCH_HAS_GIGANTIC_PAGE 57 select ARCH_32BIT_OFF_T 58 select GUP_GET_PTE_LOW_HIGH if X2TLB 59 select HAVE_KPROBES 60 select HAVE_KRETPROBES 61 select HAVE_IOREMAP_PROT if MMU && !X2TLB 62 select HAVE_FUNCTION_TRACER 63 select HAVE_FTRACE_MCOUNT_RECORD 64 select HAVE_DYNAMIC_FTRACE 65 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE 66 select ARCH_WANT_IPC_PARSE_VERSION 67 select HAVE_FUNCTION_GRAPH_TRACER 68 select HAVE_ARCH_KGDB 69 select HAVE_HW_BREAKPOINT 70 select HAVE_MIXED_BREAKPOINTS_REGS 71 select PERF_EVENTS 72 select ARCH_HIBERNATION_POSSIBLE if MMU 73 select SPARSE_IRQ 74 select HAVE_STACKPROTECTOR 75 help 76 The SuperH is a RISC processor targeted for use in embedded systems 77 and consumer electronics; it was also used in the Sega Dreamcast 78 gaming console. The SuperH port has a home page at 79 <http://www.linux-sh.org/>. 80 81config GENERIC_BUG 82 def_bool y 83 depends on BUG 84 85config GENERIC_HWEIGHT 86 def_bool y 87 88config GENERIC_CALIBRATE_DELAY 89 bool 90 91config GENERIC_LOCKBREAK 92 def_bool y 93 depends on SMP && PREEMPTION 94 95config ARCH_SUSPEND_POSSIBLE 96 def_bool n 97 98config ARCH_HIBERNATION_POSSIBLE 99 def_bool n 100 101config SYS_SUPPORTS_APM_EMULATION 102 bool 103 select ARCH_SUSPEND_POSSIBLE 104 105config SYS_SUPPORTS_HUGETLBFS 106 bool 107 108config SYS_SUPPORTS_SMP 109 bool 110 111config SYS_SUPPORTS_NUMA 112 bool 113 114config STACKTRACE_SUPPORT 115 def_bool y 116 117config LOCKDEP_SUPPORT 118 def_bool y 119 120config ARCH_HAS_ILOG2_U32 121 def_bool n 122 123config ARCH_HAS_ILOG2_U64 124 def_bool n 125 126config NO_IOPORT_MAP 127 def_bool !PCI 128 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \ 129 !SH_HP6XX && !SH_SOLUTION_ENGINE 130 131config IO_TRAPPED 132 bool 133 134config SWAP_IO_SPACE 135 bool 136 137config DMA_COHERENT 138 bool 139 140config DMA_NONCOHERENT 141 def_bool !DMA_COHERENT 142 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 143 144config PGTABLE_LEVELS 145 default 3 if X2TLB 146 default 2 147 148menu "System type" 149 150# 151# Processor families 152# 153config CPU_SH2 154 bool 155 select SH_INTC 156 157config CPU_SH2A 158 bool 159 select CPU_SH2 160 select UNCACHED_MAPPING 161 162config CPU_J2 163 bool 164 select CPU_SH2 165 select OF 166 select OF_EARLY_FLATTREE 167 168config CPU_SH3 169 bool 170 select CPU_HAS_INTEVT 171 select CPU_HAS_SR_RB 172 select SH_INTC 173 select SYS_SUPPORTS_SH_TMU 174 175config CPU_SH4 176 bool 177 select CPU_HAS_INTEVT 178 select CPU_HAS_SR_RB 179 select CPU_HAS_FPU if !CPU_SH4AL_DSP 180 select SH_INTC 181 select SYS_SUPPORTS_SH_TMU 182 select SYS_SUPPORTS_HUGETLBFS if MMU 183 184config CPU_SH4A 185 bool 186 select CPU_SH4 187 188config CPU_SH4AL_DSP 189 bool 190 select CPU_SH4A 191 select CPU_HAS_DSP 192 193config CPU_SHX2 194 bool 195 196config CPU_SHX3 197 bool 198 select DMA_COHERENT 199 select SYS_SUPPORTS_SMP 200 select SYS_SUPPORTS_NUMA 201 202config ARCH_SHMOBILE 203 bool 204 select ARCH_SUSPEND_POSSIBLE 205 select PM 206 207config CPU_HAS_PMU 208 depends on CPU_SH4 || CPU_SH4A 209 default y 210 bool 211 212choice 213 prompt "Processor sub-type selection" 214 215# 216# Processor subtypes 217# 218 219# SH-2 Processor Support 220 221config CPU_SUBTYPE_SH7619 222 bool "Support SH7619 processor" 223 select CPU_SH2 224 select SYS_SUPPORTS_SH_CMT 225 226config CPU_SUBTYPE_J2 227 bool "Support J2 processor" 228 select CPU_J2 229 select SYS_SUPPORTS_SMP 230 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 231 232# SH-2A Processor Support 233 234config CPU_SUBTYPE_SH7201 235 bool "Support SH7201 processor" 236 select CPU_SH2A 237 select CPU_HAS_FPU 238 select SYS_SUPPORTS_SH_MTU2 239 240config CPU_SUBTYPE_SH7203 241 bool "Support SH7203 processor" 242 select CPU_SH2A 243 select CPU_HAS_FPU 244 select SYS_SUPPORTS_SH_CMT 245 select SYS_SUPPORTS_SH_MTU2 246 select PINCTRL 247 248config CPU_SUBTYPE_SH7206 249 bool "Support SH7206 processor" 250 select CPU_SH2A 251 select SYS_SUPPORTS_SH_CMT 252 select SYS_SUPPORTS_SH_MTU2 253 254config CPU_SUBTYPE_SH7263 255 bool "Support SH7263 processor" 256 select CPU_SH2A 257 select CPU_HAS_FPU 258 select SYS_SUPPORTS_SH_CMT 259 select SYS_SUPPORTS_SH_MTU2 260 261config CPU_SUBTYPE_SH7264 262 bool "Support SH7264 processor" 263 select CPU_SH2A 264 select CPU_HAS_FPU 265 select SYS_SUPPORTS_SH_CMT 266 select SYS_SUPPORTS_SH_MTU2 267 select PINCTRL 268 269config CPU_SUBTYPE_SH7269 270 bool "Support SH7269 processor" 271 select CPU_SH2A 272 select CPU_HAS_FPU 273 select SYS_SUPPORTS_SH_CMT 274 select SYS_SUPPORTS_SH_MTU2 275 select PINCTRL 276 277config CPU_SUBTYPE_MXG 278 bool "Support MX-G processor" 279 select CPU_SH2A 280 select SYS_SUPPORTS_SH_MTU2 281 help 282 Select MX-G if running on an R8A03022BG part. 283 284# SH-3 Processor Support 285 286config CPU_SUBTYPE_SH7705 287 bool "Support SH7705 processor" 288 select CPU_SH3 289 290config CPU_SUBTYPE_SH7706 291 bool "Support SH7706 processor" 292 select CPU_SH3 293 help 294 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 295 296config CPU_SUBTYPE_SH7707 297 bool "Support SH7707 processor" 298 select CPU_SH3 299 help 300 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 301 302config CPU_SUBTYPE_SH7708 303 bool "Support SH7708 processor" 304 select CPU_SH3 305 help 306 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 307 if you have a 100 Mhz SH-3 HD6417708R CPU. 308 309config CPU_SUBTYPE_SH7709 310 bool "Support SH7709 processor" 311 select CPU_SH3 312 help 313 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 314 315config CPU_SUBTYPE_SH7710 316 bool "Support SH7710 processor" 317 select CPU_SH3 318 select CPU_HAS_DSP 319 help 320 Select SH7710 if you have a SH3-DSP SH7710 CPU. 321 322config CPU_SUBTYPE_SH7712 323 bool "Support SH7712 processor" 324 select CPU_SH3 325 select CPU_HAS_DSP 326 help 327 Select SH7712 if you have a SH3-DSP SH7712 CPU. 328 329config CPU_SUBTYPE_SH7720 330 bool "Support SH7720 processor" 331 select CPU_SH3 332 select CPU_HAS_DSP 333 select SYS_SUPPORTS_SH_CMT 334 select USB_OHCI_SH if USB_OHCI_HCD 335 select PINCTRL 336 help 337 Select SH7720 if you have a SH3-DSP SH7720 CPU. 338 339config CPU_SUBTYPE_SH7721 340 bool "Support SH7721 processor" 341 select CPU_SH3 342 select CPU_HAS_DSP 343 select SYS_SUPPORTS_SH_CMT 344 select USB_OHCI_SH if USB_OHCI_HCD 345 help 346 Select SH7721 if you have a SH3-DSP SH7721 CPU. 347 348# SH-4 Processor Support 349 350config CPU_SUBTYPE_SH7750 351 bool "Support SH7750 processor" 352 select CPU_SH4 353 help 354 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 355 356config CPU_SUBTYPE_SH7091 357 bool "Support SH7091 processor" 358 select CPU_SH4 359 help 360 Select SH7091 if you have an SH-4 based Sega device (such as 361 the Dreamcast, Naomi, and Naomi 2). 362 363config CPU_SUBTYPE_SH7750R 364 bool "Support SH7750R processor" 365 select CPU_SH4 366 367config CPU_SUBTYPE_SH7750S 368 bool "Support SH7750S processor" 369 select CPU_SH4 370 371config CPU_SUBTYPE_SH7751 372 bool "Support SH7751 processor" 373 select CPU_SH4 374 help 375 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 376 or if you have a HD6417751R CPU. 377 378config CPU_SUBTYPE_SH7751R 379 bool "Support SH7751R processor" 380 select CPU_SH4 381 382config CPU_SUBTYPE_SH7760 383 bool "Support SH7760 processor" 384 select CPU_SH4 385 386config CPU_SUBTYPE_SH4_202 387 bool "Support SH4-202 processor" 388 select CPU_SH4 389 390# SH-4A Processor Support 391 392config CPU_SUBTYPE_SH7723 393 bool "Support SH7723 processor" 394 select CPU_SH4A 395 select CPU_SHX2 396 select ARCH_SHMOBILE 397 select ARCH_SPARSEMEM_ENABLE 398 select SYS_SUPPORTS_SH_CMT 399 select PINCTRL 400 help 401 Select SH7723 if you have an SH-MobileR2 CPU. 402 403config CPU_SUBTYPE_SH7724 404 bool "Support SH7724 processor" 405 select CPU_SH4A 406 select CPU_SHX2 407 select ARCH_SHMOBILE 408 select ARCH_SPARSEMEM_ENABLE 409 select SYS_SUPPORTS_SH_CMT 410 select PINCTRL 411 help 412 Select SH7724 if you have an SH-MobileR2R CPU. 413 414config CPU_SUBTYPE_SH7734 415 bool "Support SH7734 processor" 416 select CPU_SH4A 417 select CPU_SHX2 418 select PINCTRL 419 help 420 Select SH7734 if you have a SH4A SH7734 CPU. 421 422config CPU_SUBTYPE_SH7757 423 bool "Support SH7757 processor" 424 select CPU_SH4A 425 select CPU_SHX2 426 select PINCTRL 427 help 428 Select SH7757 if you have a SH4A SH7757 CPU. 429 430config CPU_SUBTYPE_SH7763 431 bool "Support SH7763 processor" 432 select CPU_SH4A 433 select USB_OHCI_SH if USB_OHCI_HCD 434 help 435 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 436 437config CPU_SUBTYPE_SH7770 438 bool "Support SH7770 processor" 439 select CPU_SH4A 440 441config CPU_SUBTYPE_SH7780 442 bool "Support SH7780 processor" 443 select CPU_SH4A 444 445config CPU_SUBTYPE_SH7785 446 bool "Support SH7785 processor" 447 select CPU_SH4A 448 select CPU_SHX2 449 select ARCH_SPARSEMEM_ENABLE 450 select SYS_SUPPORTS_NUMA 451 select PINCTRL 452 453config CPU_SUBTYPE_SH7786 454 bool "Support SH7786 processor" 455 select CPU_SH4A 456 select CPU_SHX3 457 select CPU_HAS_PTEAEX 458 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 459 select USB_OHCI_SH if USB_OHCI_HCD 460 select USB_EHCI_SH if USB_EHCI_HCD 461 select PINCTRL 462 463config CPU_SUBTYPE_SHX3 464 bool "Support SH-X3 processor" 465 select CPU_SH4A 466 select CPU_SHX3 467 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 468 select GPIOLIB 469 select PINCTRL 470 471# SH4AL-DSP Processor Support 472 473config CPU_SUBTYPE_SH7343 474 bool "Support SH7343 processor" 475 select CPU_SH4AL_DSP 476 select ARCH_SHMOBILE 477 select SYS_SUPPORTS_SH_CMT 478 479config CPU_SUBTYPE_SH7722 480 bool "Support SH7722 processor" 481 select CPU_SH4AL_DSP 482 select CPU_SHX2 483 select ARCH_SHMOBILE 484 select ARCH_SPARSEMEM_ENABLE 485 select SYS_SUPPORTS_NUMA 486 select SYS_SUPPORTS_SH_CMT 487 select PINCTRL 488 489config CPU_SUBTYPE_SH7366 490 bool "Support SH7366 processor" 491 select CPU_SH4AL_DSP 492 select CPU_SHX2 493 select ARCH_SHMOBILE 494 select ARCH_SPARSEMEM_ENABLE 495 select SYS_SUPPORTS_NUMA 496 select SYS_SUPPORTS_SH_CMT 497 498endchoice 499 500source "arch/sh/mm/Kconfig" 501 502source "arch/sh/Kconfig.cpu" 503 504source "arch/sh/boards/Kconfig" 505 506menu "Timer and clock configuration" 507 508config SH_PCLK_FREQ 509 int "Peripheral clock frequency (in Hz)" 510 depends on SH_CLK_CPG_LEGACY 511 default "31250000" if CPU_SUBTYPE_SH7619 512 default "33333333" if CPU_SUBTYPE_SH7770 || \ 513 CPU_SUBTYPE_SH7760 || \ 514 CPU_SUBTYPE_SH7705 || \ 515 CPU_SUBTYPE_SH7203 || \ 516 CPU_SUBTYPE_SH7206 || \ 517 CPU_SUBTYPE_SH7263 || \ 518 CPU_SUBTYPE_MXG 519 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 520 default "66000000" if CPU_SUBTYPE_SH4_202 521 default "50000000" 522 help 523 This option is used to specify the peripheral clock frequency. 524 This is necessary for determining the reference clock value on 525 platforms lacking an RTC. 526 527config SH_CLK_CPG 528 def_bool y 529 530config SH_CLK_CPG_LEGACY 531 depends on SH_CLK_CPG 532 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \ 533 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \ 534 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \ 535 !CPU_SUBTYPE_SH7269 536 537endmenu 538 539menu "CPU Frequency scaling" 540source "drivers/cpufreq/Kconfig" 541endmenu 542 543source "arch/sh/drivers/Kconfig" 544 545endmenu 546 547menu "Kernel features" 548 549source "kernel/Kconfig.hz" 550 551config KEXEC 552 bool "kexec system call (EXPERIMENTAL)" 553 depends on MMU 554 select KEXEC_CORE 555 help 556 kexec is a system call that implements the ability to shutdown your 557 current kernel, and to start another kernel. It is like a reboot 558 but it is independent of the system firmware. And like a reboot 559 you can start any kernel with it, not just Linux. 560 561 The name comes from the similarity to the exec system call. 562 563 It is an ongoing process to be certain the hardware in a machine 564 is properly shutdown, so do not be surprised if this code does not 565 initially work for you. As of this writing the exact hardware 566 interface is strongly in flux, so no good recommendation can be 567 made. 568 569config CRASH_DUMP 570 bool "kernel crash dumps (EXPERIMENTAL)" 571 depends on BROKEN_ON_SMP 572 help 573 Generate crash dump after being started by kexec. 574 This should be normally only set in special crash dump kernels 575 which are loaded in the main kernel with kexec-tools into 576 a specially reserved region and then later executed after 577 a crash by kdump/kexec. The crash dump kernel must be compiled 578 to a memory address not used by the main kernel using 579 PHYSICAL_START. 580 581 For more details see Documentation/admin-guide/kdump/kdump.rst 582 583config KEXEC_JUMP 584 bool "kexec jump (EXPERIMENTAL)" 585 depends on KEXEC && HIBERNATION 586 help 587 Jump between original kernel and kexeced kernel and invoke 588 code via KEXEC 589 590config PHYSICAL_START 591 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) 592 default MEMORY_START 593 ---help--- 594 This gives the physical address where the kernel is loaded 595 and is ordinarily the same as MEMORY_START. 596 597 Different values are primarily used in the case of kexec on panic 598 where the fail safe kernel needs to run at a different address 599 than the panic-ed kernel. 600 601config SECCOMP 602 bool "Enable seccomp to safely compute untrusted bytecode" 603 depends on PROC_FS 604 help 605 This kernel feature is useful for number crunching applications 606 that may need to compute untrusted bytecode during their 607 execution. By using pipes or other transports made available to 608 the process as file descriptors supporting the read/write 609 syscalls, it's possible to isolate those applications in 610 their own address space using seccomp. Once seccomp is 611 enabled via prctl, it cannot be disabled and the task is only 612 allowed to execute a few safe syscalls defined by each seccomp 613 mode. 614 615 If unsure, say N. 616 617config SMP 618 bool "Symmetric multi-processing support" 619 depends on SYS_SUPPORTS_SMP 620 ---help--- 621 This enables support for systems with more than one CPU. If you have 622 a system with only one CPU, say N. If you have a system with more 623 than one CPU, say Y. 624 625 If you say N here, the kernel will run on uni- and multiprocessor 626 machines, but will use only one CPU of a multiprocessor machine. If 627 you say Y here, the kernel will run on many, but not all, 628 uniprocessor machines. On a uniprocessor machine, the kernel 629 will run faster if you say N here. 630 631 People using multiprocessor machines who say Y here should also say 632 Y to "Enhanced Real Time Clock Support", below. 633 634 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO 635 available at <http://www.tldp.org/docs.html#howto>. 636 637 If you don't know what to do here, say N. 638 639config NR_CPUS 640 int "Maximum number of CPUs (2-32)" 641 range 2 32 642 depends on SMP 643 default "4" if CPU_SUBTYPE_SHX3 644 default "2" 645 help 646 This allows you to specify the maximum number of CPUs which this 647 kernel will support. The maximum supported value is 32 and the 648 minimum value which makes sense is 2. 649 650 This is purely to save memory - each supported CPU adds 651 approximately eight kilobytes to the kernel image. 652 653config HOTPLUG_CPU 654 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 655 depends on SMP 656 help 657 Say Y here to experiment with turning CPUs off and on. CPUs 658 can be controlled through /sys/devices/system/cpu. 659 660config GUSA 661 def_bool y 662 depends on !SMP 663 help 664 This enables support for gUSA (general UserSpace Atomicity). 665 This is the default implementation for both UP and non-ll/sc 666 CPUs, and is used by the libc, amongst others. 667 668 For additional information, design information can be found 669 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 670 671 This should only be disabled for special cases where alternate 672 atomicity implementations exist. 673 674config GUSA_RB 675 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 676 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 677 help 678 Enabling this option will allow the kernel to implement some 679 atomic operations using a software implementation of load-locked/ 680 store-conditional (LLSC). On machines which do not have hardware 681 LLSC, this should be more efficient than the other alternative of 682 disabling interrupts around the atomic sequence. 683 684config HW_PERF_EVENTS 685 bool "Enable hardware performance counter support for perf events" 686 depends on PERF_EVENTS && CPU_HAS_PMU 687 default y 688 help 689 Enable hardware performance counter support for perf events. If 690 disabled, perf events will use software events only. 691 692source "drivers/sh/Kconfig" 693 694endmenu 695 696menu "Boot options" 697 698config USE_BUILTIN_DTB 699 bool "Use builtin DTB" 700 default n 701 depends on SH_DEVICE_TREE 702 help 703 Link a device tree blob for particular hardware into the kernel, 704 suppressing use of the DTB pointer provided by the bootloader. 705 This option should only be used with legacy bootloaders that are 706 not capable of providing a DTB to the kernel, or for experimental 707 hardware without stable device tree bindings. 708 709config BUILTIN_DTB_SOURCE 710 string "Source file for builtin DTB" 711 default "" 712 depends on USE_BUILTIN_DTB 713 help 714 Base name (without suffix, relative to arch/sh/boot/dts) for the 715 a DTS file that will be used to produce the DTB linked into the 716 kernel. 717 718config ZERO_PAGE_OFFSET 719 hex 720 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 721 SH_7751_SOLUTION_ENGINE 722 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 723 default "0x00002000" if PAGE_SIZE_8KB 724 default "0x00001000" 725 help 726 This sets the default offset of zero page. 727 728config BOOT_LINK_OFFSET 729 hex 730 default "0x00210000" if SH_SHMIN 731 default "0x00400000" if SH_CAYMAN 732 default "0x00810000" if SH_7780_SOLUTION_ENGINE 733 default "0x009e0000" if SH_TITAN 734 default "0x01800000" if SH_SDK7780 735 default "0x02000000" if SH_EDOSK7760 736 default "0x00800000" 737 help 738 This option allows you to set the link address offset of the zImage. 739 This can be useful if you are on a board which has a small amount of 740 memory. 741 742config ENTRY_OFFSET 743 hex 744 default "0x00001000" if PAGE_SIZE_4KB 745 default "0x00002000" if PAGE_SIZE_8KB 746 default "0x00004000" if PAGE_SIZE_16KB 747 default "0x00010000" if PAGE_SIZE_64KB 748 default "0x00000000" 749 750config ROMIMAGE_MMCIF 751 bool "Include MMCIF loader in romImage (EXPERIMENTAL)" 752 depends on CPU_SUBTYPE_SH7724 753 help 754 Say Y here to include experimental MMCIF loading code in 755 romImage. With this enabled it is possible to write the romImage 756 kernel image to an MMC card and boot the kernel straight from 757 the reset vector. At reset the processor Mask ROM will load the 758 first part of the romImage which in turn loads the rest the kernel 759 image to RAM using the MMCIF hardware block. 760 761choice 762 prompt "Kernel command line" 763 optional 764 default CMDLINE_OVERWRITE 765 help 766 Setting this option allows the kernel command line arguments 767 to be set. 768 769config CMDLINE_OVERWRITE 770 bool "Overwrite bootloader kernel arguments" 771 help 772 Given string will overwrite any arguments passed in by 773 a bootloader. 774 775config CMDLINE_EXTEND 776 bool "Extend bootloader kernel arguments" 777 help 778 Given string will be concatenated with arguments passed in 779 by a bootloader. 780 781endchoice 782 783config CMDLINE 784 string "Kernel command line arguments string" 785 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 786 default "console=ttySC1,115200" 787 788endmenu 789 790menu "Bus options" 791 792config SUPERHYWAY 793 tristate "SuperHyway Bus support" 794 depends on CPU_SUBTYPE_SH4_202 795 796config MAPLE 797 bool "Maple Bus support" 798 depends on SH_DREAMCAST 799 help 800 The Maple Bus is SEGA's serial communication bus for peripherals 801 on the Dreamcast. Without this bus support you won't be able to 802 get your Dreamcast keyboard etc to work, so most users 803 probably want to say 'Y' here, unless you are only using the 804 Dreamcast with a serial line terminal or a remote network 805 connection. 806 807endmenu 808 809menu "Power management options (EXPERIMENTAL)" 810 811source "kernel/power/Kconfig" 812 813source "drivers/cpuidle/Kconfig" 814 815endmenu 816