1 # SPDX-License-Identifier: GPL-2.0
4 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_NO_COHERENT_DMA_MMAP if !MMU
7 select HAVE_PATA_PLATFORM
9 select HAVE_IDE if HAS_IOPORT_MAP
11 select HAVE_MEMBLOCK_NODE_MAP
12 select ARCH_DISCARD_MEMBLOCK
14 select HAVE_GENERIC_DMA_COHERENT
15 select HAVE_ARCH_TRACEHOOK
16 select HAVE_DMA_API_DEBUG
17 select HAVE_PERF_EVENTS
18 select HAVE_DEBUG_BUGVERBOSE
19 select ARCH_HAVE_CUSTOM_GPIO_H
20 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
21 select ARCH_HAS_GCOV_PROFILE_ALL
22 select PERF_USE_VMALLOC
23 select HAVE_DEBUG_KMEMLEAK
24 select HAVE_KERNEL_GZIP
25 select CPU_NO_EFFICIENT_FFS
26 select HAVE_KERNEL_BZIP2
27 select HAVE_KERNEL_LZMA
29 select HAVE_KERNEL_LZO
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select HAVE_SYSCALL_TRACEPOINTS
33 select HAVE_REGS_AND_STACK_ACCESS_API
34 select MAY_HAVE_SPARSE_IRQ
35 select IRQ_FORCED_THREADING
37 select GENERIC_ATOMIC64
38 select GENERIC_IRQ_SHOW
39 select GENERIC_SMP_IDLE_THREAD
40 select GENERIC_IDLE_POLL_SETUP
41 select GENERIC_CLOCKEVENTS
42 select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
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
50 select HAVE_ARCH_AUDITSYSCALL
51 select HAVE_FUTEX_CMPXCHG if FUTEX
54 The SuperH is a RISC processor targeted for use in embedded systems
55 and consumer electronics; it was also used in the Sega Dreamcast
56 gaming console. The SuperH port has a home page at
57 <http://www.linux-sh.org/>.
62 select HAVE_KRETPROBES
63 select HAVE_IOREMAP_PROT if MMU && !X2TLB
64 select HAVE_FUNCTION_TRACER
65 select HAVE_FTRACE_MCOUNT_RECORD
66 select HAVE_DYNAMIC_FTRACE
67 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
68 select ARCH_WANT_IPC_PARSE_VERSION
69 select HAVE_FUNCTION_GRAPH_TRACER
71 select HAVE_HW_BREAKPOINT
72 select HAVE_MIXED_BREAKPOINTS_REGS
74 select ARCH_HIBERNATION_POSSIBLE if MMU
76 select HAVE_CC_STACKPROTECTOR
79 def_bool ARCH = "sh64"
80 select HAVE_EXIT_THREAD
85 default "arch/sh/configs/shx3_defconfig" if SUPERH32
86 default "arch/sh/configs/cayman_defconfig" if SUPERH64
88 config RWSEM_GENERIC_SPINLOCK
91 config RWSEM_XCHGADD_ALGORITHM
96 depends on BUG && SUPERH32
102 config GENERIC_HWEIGHT
105 config GENERIC_CALIBRATE_DELAY
108 config GENERIC_LOCKBREAK
110 depends on SMP && PREEMPT
112 config ARCH_SUSPEND_POSSIBLE
115 config ARCH_HIBERNATION_POSSIBLE
118 config SYS_SUPPORTS_APM_EMULATION
120 select ARCH_SUSPEND_POSSIBLE
122 config SYS_SUPPORTS_HUGETLBFS
125 config SYS_SUPPORTS_SMP
128 config SYS_SUPPORTS_NUMA
131 config SYS_SUPPORTS_PCI
134 config STACKTRACE_SUPPORT
137 config LOCKDEP_SUPPORT
140 config ARCH_HAS_ILOG2_U32
143 config ARCH_HAS_ILOG2_U64
148 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
149 !SH_HP6XX && !SH_SOLUTION_ENGINE
160 config DMA_NONCOHERENT
161 def_bool !DMA_COHERENT
163 config NEED_DMA_MAP_STATE
164 def_bool DMA_NONCOHERENT
166 config NEED_SG_DMA_LENGTH
169 config PGTABLE_LEVELS
173 source "init/Kconfig"
175 source "kernel/Kconfig.freezer"
189 select UNCACHED_MAPPING
195 select OF_EARLY_FLATTREE
199 select CPU_HAS_INTEVT
202 select SYS_SUPPORTS_SH_TMU
206 select CPU_HAS_INTEVT
208 select CPU_HAS_FPU if !CPU_SH4AL_DSP
210 select SYS_SUPPORTS_SH_TMU
211 select SYS_SUPPORTS_HUGETLBFS if MMU
225 select SYS_SUPPORTS_SH_TMU
226 select SYS_SUPPORTS_HUGETLBFS if MMU
234 select SYS_SUPPORTS_SMP
235 select SYS_SUPPORTS_NUMA
239 select ARCH_SUSPEND_POSSIBLE
243 depends on CPU_SH4 || CPU_SH4A
250 prompt "Processor sub-type selection"
256 # SH-2 Processor Support
258 config CPU_SUBTYPE_SH7619
259 bool "Support SH7619 processor"
261 select SYS_SUPPORTS_SH_CMT
263 config CPU_SUBTYPE_J2
264 bool "Support J2 processor"
266 select SYS_SUPPORTS_SMP
267 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
269 # SH-2A Processor Support
271 config CPU_SUBTYPE_SH7201
272 bool "Support SH7201 processor"
275 select SYS_SUPPORTS_SH_MTU2
277 config CPU_SUBTYPE_SH7203
278 bool "Support SH7203 processor"
281 select SYS_SUPPORTS_SH_CMT
282 select SYS_SUPPORTS_SH_MTU2
285 config CPU_SUBTYPE_SH7206
286 bool "Support SH7206 processor"
288 select SYS_SUPPORTS_SH_CMT
289 select SYS_SUPPORTS_SH_MTU2
291 config CPU_SUBTYPE_SH7263
292 bool "Support SH7263 processor"
295 select SYS_SUPPORTS_SH_CMT
296 select SYS_SUPPORTS_SH_MTU2
298 config CPU_SUBTYPE_SH7264
299 bool "Support SH7264 processor"
302 select SYS_SUPPORTS_SH_CMT
303 select SYS_SUPPORTS_SH_MTU2
306 config CPU_SUBTYPE_SH7269
307 bool "Support SH7269 processor"
310 select SYS_SUPPORTS_SH_CMT
311 select SYS_SUPPORTS_SH_MTU2
314 config CPU_SUBTYPE_MXG
315 bool "Support MX-G processor"
317 select SYS_SUPPORTS_SH_MTU2
319 Select MX-G if running on an R8A03022BG part.
321 # SH-3 Processor Support
323 config CPU_SUBTYPE_SH7705
324 bool "Support SH7705 processor"
327 config CPU_SUBTYPE_SH7706
328 bool "Support SH7706 processor"
331 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
333 config CPU_SUBTYPE_SH7707
334 bool "Support SH7707 processor"
337 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
339 config CPU_SUBTYPE_SH7708
340 bool "Support SH7708 processor"
343 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
344 if you have a 100 Mhz SH-3 HD6417708R CPU.
346 config CPU_SUBTYPE_SH7709
347 bool "Support SH7709 processor"
350 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
352 config CPU_SUBTYPE_SH7710
353 bool "Support SH7710 processor"
357 Select SH7710 if you have a SH3-DSP SH7710 CPU.
359 config CPU_SUBTYPE_SH7712
360 bool "Support SH7712 processor"
364 Select SH7712 if you have a SH3-DSP SH7712 CPU.
366 config CPU_SUBTYPE_SH7720
367 bool "Support SH7720 processor"
370 select SYS_SUPPORTS_SH_CMT
371 select USB_OHCI_SH if USB_OHCI_HCD
374 Select SH7720 if you have a SH3-DSP SH7720 CPU.
376 config CPU_SUBTYPE_SH7721
377 bool "Support SH7721 processor"
380 select SYS_SUPPORTS_SH_CMT
381 select USB_OHCI_SH if USB_OHCI_HCD
383 Select SH7721 if you have a SH3-DSP SH7721 CPU.
385 # SH-4 Processor Support
387 config CPU_SUBTYPE_SH7750
388 bool "Support SH7750 processor"
391 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
393 config CPU_SUBTYPE_SH7091
394 bool "Support SH7091 processor"
397 Select SH7091 if you have an SH-4 based Sega device (such as
398 the Dreamcast, Naomi, and Naomi 2).
400 config CPU_SUBTYPE_SH7750R
401 bool "Support SH7750R processor"
404 config CPU_SUBTYPE_SH7750S
405 bool "Support SH7750S processor"
408 config CPU_SUBTYPE_SH7751
409 bool "Support SH7751 processor"
412 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
413 or if you have a HD6417751R CPU.
415 config CPU_SUBTYPE_SH7751R
416 bool "Support SH7751R processor"
419 config CPU_SUBTYPE_SH7760
420 bool "Support SH7760 processor"
423 config CPU_SUBTYPE_SH4_202
424 bool "Support SH4-202 processor"
427 # SH-4A Processor Support
429 config CPU_SUBTYPE_SH7723
430 bool "Support SH7723 processor"
434 select ARCH_SPARSEMEM_ENABLE
435 select SYS_SUPPORTS_SH_CMT
438 Select SH7723 if you have an SH-MobileR2 CPU.
440 config CPU_SUBTYPE_SH7724
441 bool "Support SH7724 processor"
445 select ARCH_SPARSEMEM_ENABLE
446 select SYS_SUPPORTS_SH_CMT
449 Select SH7724 if you have an SH-MobileR2R CPU.
451 config CPU_SUBTYPE_SH7734
452 bool "Support SH7734 processor"
457 Select SH7734 if you have a SH4A SH7734 CPU.
459 config CPU_SUBTYPE_SH7757
460 bool "Support SH7757 processor"
465 Select SH7757 if you have a SH4A SH7757 CPU.
467 config CPU_SUBTYPE_SH7763
468 bool "Support SH7763 processor"
470 select USB_OHCI_SH if USB_OHCI_HCD
472 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
474 config CPU_SUBTYPE_SH7770
475 bool "Support SH7770 processor"
478 config CPU_SUBTYPE_SH7780
479 bool "Support SH7780 processor"
482 config CPU_SUBTYPE_SH7785
483 bool "Support SH7785 processor"
486 select ARCH_SPARSEMEM_ENABLE
487 select SYS_SUPPORTS_NUMA
490 config CPU_SUBTYPE_SH7786
491 bool "Support SH7786 processor"
494 select CPU_HAS_PTEAEX
495 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
496 select USB_OHCI_SH if USB_OHCI_HCD
497 select USB_EHCI_SH if USB_EHCI_HCD
500 config CPU_SUBTYPE_SHX3
501 bool "Support SH-X3 processor"
504 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
508 # SH4AL-DSP Processor Support
510 config CPU_SUBTYPE_SH7343
511 bool "Support SH7343 processor"
514 select SYS_SUPPORTS_SH_CMT
516 config CPU_SUBTYPE_SH7722
517 bool "Support SH7722 processor"
521 select ARCH_SPARSEMEM_ENABLE
522 select SYS_SUPPORTS_NUMA
523 select SYS_SUPPORTS_SH_CMT
526 config CPU_SUBTYPE_SH7366
527 bool "Support SH7366 processor"
531 select ARCH_SPARSEMEM_ENABLE
532 select SYS_SUPPORTS_NUMA
533 select SYS_SUPPORTS_SH_CMT
542 prompt "Processor sub-type selection"
544 # SH-5 Processor Support
546 config CPU_SUBTYPE_SH5_101
547 bool "Support SH5-101 processor"
550 config CPU_SUBTYPE_SH5_103
551 bool "Support SH5-103 processor"
558 source "arch/sh/mm/Kconfig"
560 source "arch/sh/Kconfig.cpu"
562 source "arch/sh/boards/Kconfig"
564 menu "Timer and clock configuration"
567 int "Peripheral clock frequency (in Hz)"
568 depends on SH_CLK_CPG_LEGACY
569 default "31250000" if CPU_SUBTYPE_SH7619
570 default "33333333" if CPU_SUBTYPE_SH7770 || \
571 CPU_SUBTYPE_SH7760 || \
572 CPU_SUBTYPE_SH7705 || \
573 CPU_SUBTYPE_SH7203 || \
574 CPU_SUBTYPE_SH7206 || \
575 CPU_SUBTYPE_SH7263 || \
577 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
578 default "66000000" if CPU_SUBTYPE_SH4_202
581 This option is used to specify the peripheral clock frequency.
582 This is necessary for determining the reference clock value on
583 platforms lacking an RTC.
588 config SH_CLK_CPG_LEGACY
589 depends on SH_CLK_CPG
590 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
591 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \
592 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \
597 menu "CPU Frequency scaling"
598 source "drivers/cpufreq/Kconfig"
601 source "arch/sh/drivers/Kconfig"
605 menu "Kernel features"
607 source kernel/Kconfig.hz
610 bool "kexec system call (EXPERIMENTAL)"
611 depends on SUPERH32 && MMU
614 kexec is a system call that implements the ability to shutdown your
615 current kernel, and to start another kernel. It is like a reboot
616 but it is independent of the system firmware. And like a reboot
617 you can start any kernel with it, not just Linux.
619 The name comes from the similarity to the exec system call.
621 It is an ongoing process to be certain the hardware in a machine
622 is properly shutdown, so do not be surprised if this code does not
623 initially work for you. As of this writing the exact hardware
624 interface is strongly in flux, so no good recommendation can be
628 bool "kernel crash dumps (EXPERIMENTAL)"
629 depends on SUPERH32 && BROKEN_ON_SMP
631 Generate crash dump after being started by kexec.
632 This should be normally only set in special crash dump kernels
633 which are loaded in the main kernel with kexec-tools into
634 a specially reserved region and then later executed after
635 a crash by kdump/kexec. The crash dump kernel must be compiled
636 to a memory address not used by the main kernel using
639 For more details see Documentation/kdump/kdump.txt
642 bool "kexec jump (EXPERIMENTAL)"
643 depends on SUPERH32 && KEXEC && HIBERNATION
645 Jump between original kernel and kexeced kernel and invoke
648 config PHYSICAL_START
649 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
652 This gives the physical address where the kernel is loaded
653 and is ordinarily the same as MEMORY_START.
655 Different values are primarily used in the case of kexec on panic
656 where the fail safe kernel needs to run at a different address
657 than the panic-ed kernel.
660 bool "Enable seccomp to safely compute untrusted bytecode"
663 This kernel feature is useful for number crunching applications
664 that may need to compute untrusted bytecode during their
665 execution. By using pipes or other transports made available to
666 the process as file descriptors supporting the read/write
667 syscalls, it's possible to isolate those applications in
668 their own address space using seccomp. Once seccomp is
669 enabled via prctl, it cannot be disabled and the task is only
670 allowed to execute a few safe syscalls defined by each seccomp
676 bool "Symmetric multi-processing support"
677 depends on SYS_SUPPORTS_SMP
679 This enables support for systems with more than one CPU. If you have
680 a system with only one CPU, say N. If you have a system with more
683 If you say N here, the kernel will run on uni- and multiprocessor
684 machines, but will use only one CPU of a multiprocessor machine. If
685 you say Y here, the kernel will run on many, but not all,
686 uniprocessor machines. On a uniprocessor machine, the kernel
687 will run faster if you say N here.
689 People using multiprocessor machines who say Y here should also say
690 Y to "Enhanced Real Time Clock Support", below.
692 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
693 available at <http://www.tldp.org/docs.html#howto>.
695 If you don't know what to do here, say N.
698 int "Maximum number of CPUs (2-32)"
701 default "4" if CPU_SUBTYPE_SHX3
704 This allows you to specify the maximum number of CPUs which this
705 kernel will support. The maximum supported value is 32 and the
706 minimum value which makes sense is 2.
708 This is purely to save memory - each supported CPU adds
709 approximately eight kilobytes to the kernel image.
712 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
715 Say Y here to experiment with turning CPUs off and on. CPUs
716 can be controlled through /sys/devices/system/cpu.
718 source "kernel/Kconfig.preempt"
722 depends on !SMP && SUPERH32
724 This enables support for gUSA (general UserSpace Atomicity).
725 This is the default implementation for both UP and non-ll/sc
726 CPUs, and is used by the libc, amongst others.
728 For additional information, design information can be found
729 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
731 This should only be disabled for special cases where alternate
732 atomicity implementations exist.
735 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
736 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
738 Enabling this option will allow the kernel to implement some
739 atomic operations using a software implementation of load-locked/
740 store-conditional (LLSC). On machines which do not have hardware
741 LLSC, this should be more efficient than the other alternative of
742 disabling interrupts around the atomic sequence.
744 config HW_PERF_EVENTS
745 bool "Enable hardware performance counter support for perf events"
746 depends on PERF_EVENTS && CPU_HAS_PMU
749 Enable hardware performance counter support for perf events. If
750 disabled, perf events will use software events only.
752 source "drivers/sh/Kconfig"
758 config USE_BUILTIN_DTB
759 bool "Use builtin DTB"
761 depends on SH_DEVICE_TREE
763 Link a device tree blob for particular hardware into the kernel,
764 suppressing use of the DTB pointer provided by the bootloader.
765 This option should only be used with legacy bootloaders that are
766 not capable of providing a DTB to the kernel, or for experimental
767 hardware without stable device tree bindings.
769 config BUILTIN_DTB_SOURCE
770 string "Source file for builtin DTB"
772 depends on USE_BUILTIN_DTB
774 Base name (without suffix, relative to arch/sh/boot/dts) for the
775 a DTS file that will be used to produce the DTB linked into the
778 config ZERO_PAGE_OFFSET
780 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
781 SH_7751_SOLUTION_ENGINE
782 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
783 default "0x00002000" if PAGE_SIZE_8KB
786 This sets the default offset of zero page.
788 config BOOT_LINK_OFFSET
790 default "0x00210000" if SH_SHMIN
791 default "0x00400000" if SH_CAYMAN
792 default "0x00810000" if SH_7780_SOLUTION_ENGINE
793 default "0x009e0000" if SH_TITAN
794 default "0x01800000" if SH_SDK7780
795 default "0x02000000" if SH_EDOSK7760
798 This option allows you to set the link address offset of the zImage.
799 This can be useful if you are on a board which has a small amount of
804 default "0x00001000" if PAGE_SIZE_4KB
805 default "0x00002000" if PAGE_SIZE_8KB
806 default "0x00004000" if PAGE_SIZE_16KB
807 default "0x00010000" if PAGE_SIZE_64KB
810 config ROMIMAGE_MMCIF
811 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
812 depends on CPU_SUBTYPE_SH7724
814 Say Y here to include experimental MMCIF loading code in
815 romImage. With this enabled it is possible to write the romImage
816 kernel image to an MMC card and boot the kernel straight from
817 the reset vector. At reset the processor Mask ROM will load the
818 first part of the romImage which in turn loads the rest the kernel
819 image to RAM using the MMCIF hardware block.
822 prompt "Kernel command line"
824 default CMDLINE_OVERWRITE
826 Setting this option allows the kernel command line arguments
829 config CMDLINE_OVERWRITE
830 bool "Overwrite bootloader kernel arguments"
832 Given string will overwrite any arguments passed in by
835 config CMDLINE_EXTEND
836 bool "Extend bootloader kernel arguments"
838 Given string will be concatenated with arguments passed in
844 string "Kernel command line arguments string"
845 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
846 default "console=ttySC1,115200"
853 tristate "SuperHyway Bus support"
854 depends on CPU_SUBTYPE_SH4_202
857 bool "Maple Bus support"
858 depends on SH_DREAMCAST
860 The Maple Bus is SEGA's serial communication bus for peripherals
861 on the Dreamcast. Without this bus support you won't be able to
862 get your Dreamcast keyboard etc to work, so most users
863 probably want to say 'Y' here, unless you are only using the
864 Dreamcast with a serial line terminal or a remote network
869 depends on SYS_SUPPORTS_PCI
871 select GENERIC_PCI_IOMAP
872 select NO_GENERIC_PCI_IOPORT_MAP
874 Find out whether you have a PCI motherboard. PCI is the name of a
875 bus system, i.e. the way the CPU talks to the other stuff inside
876 your box. If you have PCI, say Y, otherwise N.
881 source "drivers/pci/Kconfig"
883 source "drivers/pcmcia/Kconfig"
887 menu "Executable file formats"
889 source "fs/Kconfig.binfmt"
893 menu "Power management options (EXPERIMENTAL)"
895 source "kernel/power/Kconfig"
897 source "drivers/cpuidle/Kconfig"
903 source "drivers/Kconfig"
907 source "arch/sh/Kconfig.debug"
909 source "security/Kconfig"
911 source "crypto/Kconfig"