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