2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux/SuperH Kernel Configuration"
12 select HAVE_IDE if HAS_IOPORT
15 select HAVE_GENERIC_DMA_COHERENT
16 select HAVE_ARCH_TRACEHOOK
17 select HAVE_DMA_API_DEBUG
19 select HAVE_PERF_EVENTS
20 select PERF_USE_VMALLOC
21 select HAVE_KERNEL_GZIP
22 select HAVE_KERNEL_BZIP2
23 select HAVE_KERNEL_LZMA
24 select HAVE_KERNEL_LZO
25 select HAVE_SYSCALL_TRACEPOINTS
27 select GENERIC_ATOMIC64
29 The SuperH is a RISC processor targeted for use in embedded systems
30 and consumer electronics; it was also used in the Sega Dreamcast
31 gaming console. The SuperH port has a home page at
32 <http://www.linux-sh.org/>.
37 select HAVE_KRETPROBES
38 select HAVE_IOREMAP_PROT if MMU && !X2TLB
39 select HAVE_FUNCTION_TRACER
40 select HAVE_FTRACE_MCOUNT_RECORD
41 select HAVE_DYNAMIC_FTRACE
42 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
43 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
44 select HAVE_FUNCTION_GRAPH_TRACER
46 select HAVE_HW_BREAKPOINT
47 select HAVE_MIXED_BREAKPOINTS_REGS
48 select PERF_EVENTS if HAVE_HW_BREAKPOINT
49 select ARCH_HIBERNATION_POSSIBLE if MMU
52 def_bool ARCH = "sh64"
56 default "arch/sh/configs/shx3_defconfig" if SUPERH32
57 default "arch/sh/configs/cayman_defconfig" if SUPERH64
59 config RWSEM_GENERIC_SPINLOCK
62 config RWSEM_XCHGADD_ALGORITHM
67 depends on BUG && SUPERH32
73 config GENERIC_FIND_NEXT_BIT
76 config GENERIC_HWEIGHT
79 config GENERIC_HARDIRQS
82 config GENERIC_HARDIRQS_NO__DO_IRQ
95 config GENERIC_CALIBRATE_DELAY
101 config GENERIC_CLOCKEVENTS
104 config GENERIC_CLOCKEVENTS_BROADCAST
107 config GENERIC_CMOS_UPDATE
109 depends on SH_SH03 || SH_DREAMCAST
111 config GENERIC_LOCKBREAK
113 depends on SMP && PREEMPT
115 config SYS_SUPPORTS_PM
119 config ARCH_SUSPEND_POSSIBLE
122 config ARCH_HIBERNATION_POSSIBLE
125 config SYS_SUPPORTS_APM_EMULATION
127 select ARCH_SUSPEND_POSSIBLE
129 config SYS_SUPPORTS_HUGETLBFS
132 config SYS_SUPPORTS_SMP
135 config SYS_SUPPORTS_NUMA
138 config SYS_SUPPORTS_PCI
141 config SYS_SUPPORTS_CMT
144 config SYS_SUPPORTS_MTU2
147 config SYS_SUPPORTS_TMU
150 config STACKTRACE_SUPPORT
153 config LOCKDEP_SUPPORT
156 config HAVE_LATENCYTOP_SUPPORT
159 config ARCH_HAS_ILOG2_U32
162 config ARCH_HAS_ILOG2_U64
165 config ARCH_NO_VIRT_TO_BUS
168 config ARCH_HAS_DEFAULT_IDLE
171 config ARCH_HAS_CPU_IDLE_WAIT
183 config DMA_NONCOHERENT
184 def_bool !DMA_COHERENT
186 config NEED_DMA_MAP_STATE
187 def_bool DMA_NONCOHERENT
189 config NEED_SG_DMA_LENGTH
192 source "init/Kconfig"
194 source "kernel/Kconfig.freezer"
210 select CPU_HAS_INTEVT
212 select SYS_SUPPORTS_TMU
216 select CPU_HAS_INTEVT
218 select CPU_HAS_FPU if !CPU_SH4AL_DSP
219 select SYS_SUPPORTS_TMU
220 select SYS_SUPPORTS_HUGETLBFS if MMU
234 select SYS_SUPPORTS_TMU
235 select SYS_SUPPORTS_HUGETLBFS if MMU
243 select SYS_SUPPORTS_SMP
244 select SYS_SUPPORTS_NUMA
248 select ARCH_SUSPEND_POSSIBLE
253 depends on CPU_SH4 || CPU_SH4A
260 prompt "Processor sub-type selection"
266 # SH-2 Processor Support
268 config CPU_SUBTYPE_SH7619
269 bool "Support SH7619 processor"
271 select SYS_SUPPORTS_CMT
273 # SH-2A Processor Support
275 config CPU_SUBTYPE_SH7201
276 bool "Support SH7201 processor"
279 select SYS_SUPPORTS_MTU2
281 config CPU_SUBTYPE_SH7203
282 bool "Support SH7203 processor"
285 select SYS_SUPPORTS_CMT
286 select SYS_SUPPORTS_MTU2
288 config CPU_SUBTYPE_SH7206
289 bool "Support SH7206 processor"
291 select SYS_SUPPORTS_CMT
292 select SYS_SUPPORTS_MTU2
294 config CPU_SUBTYPE_SH7263
295 bool "Support SH7263 processor"
298 select SYS_SUPPORTS_CMT
299 select SYS_SUPPORTS_MTU2
301 config CPU_SUBTYPE_MXG
302 bool "Support MX-G processor"
304 select SYS_SUPPORTS_MTU2
306 Select MX-G if running on an R8A03022BG part.
308 # SH-3 Processor Support
310 config CPU_SUBTYPE_SH7705
311 bool "Support SH7705 processor"
314 config CPU_SUBTYPE_SH7706
315 bool "Support SH7706 processor"
318 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
320 config CPU_SUBTYPE_SH7707
321 bool "Support SH7707 processor"
324 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
326 config CPU_SUBTYPE_SH7708
327 bool "Support SH7708 processor"
330 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
331 if you have a 100 Mhz SH-3 HD6417708R CPU.
333 config CPU_SUBTYPE_SH7709
334 bool "Support SH7709 processor"
337 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
339 config CPU_SUBTYPE_SH7710
340 bool "Support SH7710 processor"
344 Select SH7710 if you have a SH3-DSP SH7710 CPU.
346 config CPU_SUBTYPE_SH7712
347 bool "Support SH7712 processor"
351 Select SH7712 if you have a SH3-DSP SH7712 CPU.
353 config CPU_SUBTYPE_SH7720
354 bool "Support SH7720 processor"
357 select SYS_SUPPORTS_CMT
359 Select SH7720 if you have a SH3-DSP SH7720 CPU.
361 config CPU_SUBTYPE_SH7721
362 bool "Support SH7721 processor"
365 select SYS_SUPPORTS_CMT
367 Select SH7721 if you have a SH3-DSP SH7721 CPU.
369 # SH-4 Processor Support
371 config CPU_SUBTYPE_SH7750
372 bool "Support SH7750 processor"
375 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
377 config CPU_SUBTYPE_SH7091
378 bool "Support SH7091 processor"
381 Select SH7091 if you have an SH-4 based Sega device (such as
382 the Dreamcast, Naomi, and Naomi 2).
384 config CPU_SUBTYPE_SH7750R
385 bool "Support SH7750R processor"
388 config CPU_SUBTYPE_SH7750S
389 bool "Support SH7750S processor"
392 config CPU_SUBTYPE_SH7751
393 bool "Support SH7751 processor"
396 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
397 or if you have a HD6417751R CPU.
399 config CPU_SUBTYPE_SH7751R
400 bool "Support SH7751R processor"
403 config CPU_SUBTYPE_SH7760
404 bool "Support SH7760 processor"
407 config CPU_SUBTYPE_SH4_202
408 bool "Support SH4-202 processor"
411 # SH-4A Processor Support
413 config CPU_SUBTYPE_SH7723
414 bool "Support SH7723 processor"
418 select ARCH_SPARSEMEM_ENABLE
419 select SYS_SUPPORTS_CMT
421 Select SH7723 if you have an SH-MobileR2 CPU.
423 config CPU_SUBTYPE_SH7724
424 bool "Support SH7724 processor"
428 select ARCH_SPARSEMEM_ENABLE
429 select SYS_SUPPORTS_CMT
431 Select SH7724 if you have an SH-MobileR2R CPU.
433 config CPU_SUBTYPE_SH7757
434 bool "Support SH7757 processor"
438 Select SH7757 if you have a SH4A SH7757 CPU.
440 config CPU_SUBTYPE_SH7763
441 bool "Support SH7763 processor"
444 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
446 config CPU_SUBTYPE_SH7770
447 bool "Support SH7770 processor"
450 config CPU_SUBTYPE_SH7780
451 bool "Support SH7780 processor"
454 config CPU_SUBTYPE_SH7785
455 bool "Support SH7785 processor"
458 select ARCH_SPARSEMEM_ENABLE
459 select SYS_SUPPORTS_NUMA
461 config CPU_SUBTYPE_SH7786
462 bool "Support SH7786 processor"
465 select CPU_HAS_PTEAEX
466 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
468 config CPU_SUBTYPE_SHX3
469 bool "Support SH-X3 processor"
472 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
474 # SH4AL-DSP Processor Support
476 config CPU_SUBTYPE_SH7343
477 bool "Support SH7343 processor"
480 select SYS_SUPPORTS_CMT
482 config CPU_SUBTYPE_SH7722
483 bool "Support SH7722 processor"
487 select ARCH_SPARSEMEM_ENABLE
488 select SYS_SUPPORTS_NUMA
489 select SYS_SUPPORTS_CMT
491 config CPU_SUBTYPE_SH7366
492 bool "Support SH7366 processor"
496 select ARCH_SPARSEMEM_ENABLE
497 select SYS_SUPPORTS_NUMA
498 select SYS_SUPPORTS_CMT
507 prompt "Processor sub-type selection"
509 # SH-5 Processor Support
511 config CPU_SUBTYPE_SH5_101
512 bool "Support SH5-101 processor"
515 config CPU_SUBTYPE_SH5_103
516 bool "Support SH5-103 processor"
523 source "arch/sh/mm/Kconfig"
525 source "arch/sh/Kconfig.cpu"
527 source "arch/sh/boards/Kconfig"
529 menu "Timer and clock configuration"
532 bool "TMU timer driver"
533 depends on SYS_SUPPORTS_TMU
536 This enables the build of the TMU timer driver.
539 bool "CMT timer driver"
540 depends on SYS_SUPPORTS_CMT
543 This enables build of the CMT timer driver.
546 bool "MTU2 timer driver"
547 depends on SYS_SUPPORTS_MTU2
550 This enables build of the MTU2 timer driver.
553 int "Peripheral clock frequency (in Hz)"
554 depends on SH_CLK_CPG_LEGACY
555 default "31250000" if CPU_SUBTYPE_SH7619
556 default "33333333" if CPU_SUBTYPE_SH7770 || \
557 CPU_SUBTYPE_SH7760 || \
558 CPU_SUBTYPE_SH7705 || \
559 CPU_SUBTYPE_SH7203 || \
560 CPU_SUBTYPE_SH7206 || \
561 CPU_SUBTYPE_SH7263 || \
563 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
564 default "66000000" if CPU_SUBTYPE_SH4_202
567 This option is used to specify the peripheral clock frequency.
568 This is necessary for determining the reference clock value on
569 platforms lacking an RTC.
574 config SH_CLK_CPG_LEGACY
575 depends on SH_CLK_CPG
576 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
580 int "CPU Mode Pin Setting"
582 default 6 if CPU_SUBTYPE_SH7206
583 default 5 if CPU_SUBTYPE_SH7619
586 MD2 - MD0 pin setting.
588 source "kernel/time/Kconfig"
592 menu "CPU Frequency scaling"
594 source "drivers/cpufreq/Kconfig"
597 tristate "SuperH CPU Frequency driver"
599 select CPU_FREQ_TABLE
601 This adds the cpufreq driver for SuperH. Any CPU that supports
602 clock rate rounding through the clock framework can use this
603 driver. While it will make the kernel slightly larger, this is
604 harmless for CPUs that don't support rate rounding. The driver
605 will also generate a notice in the boot log before disabling
606 itself if the CPU in question is not capable of rate rounding.
608 For details, take a look at <file:Documentation/cpu-freq>.
614 source "arch/sh/drivers/Kconfig"
618 menu "Kernel features"
620 source kernel/Kconfig.hz
623 bool "kexec system call (EXPERIMENTAL)"
624 depends on SUPERH32 && EXPERIMENTAL && MMU
626 kexec is a system call that implements the ability to shutdown your
627 current kernel, and to start another kernel. It is like a reboot
628 but it is independent of the system firmware. And like a reboot
629 you can start any kernel with it, not just Linux.
631 The name comes from the similarity to the exec system call.
633 It is an ongoing process to be certain the hardware in a machine
634 is properly shutdown, so do not be surprised if this code does not
635 initially work for you. It may help to enable device hotplugging
636 support. As of this writing the exact hardware interface is
637 strongly in flux, so no good recommendation can be made.
640 bool "kernel crash dumps (EXPERIMENTAL)"
641 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
643 Generate crash dump after being started by kexec.
644 This should be normally only set in special crash dump kernels
645 which are loaded in the main kernel with kexec-tools into
646 a specially reserved region and then later executed after
647 a crash by kdump/kexec. The crash dump kernel must be compiled
648 to a memory address not used by the main kernel using
651 For more details see Documentation/kdump/kdump.txt
654 bool "kexec jump (EXPERIMENTAL)"
655 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
657 Jump between original kernel and kexeced kernel and invoke
661 bool "Enable seccomp to safely compute untrusted bytecode"
664 This kernel feature is useful for number crunching applications
665 that may need to compute untrusted bytecode during their
666 execution. By using pipes or other transports made available to
667 the process as file descriptors supporting the read/write
668 syscalls, it's possible to isolate those applications in
669 their own address space using seccomp. Once seccomp is
670 enabled via prctl, it cannot be disabled and the task is only
671 allowed to execute a few safe syscalls defined by each seccomp
677 bool "Symmetric multi-processing support"
678 depends on SYS_SUPPORTS_SMP
679 select USE_GENERIC_SMP_HELPERS
681 This enables support for systems with more than one CPU. If you have
682 a system with only one CPU, like most personal computers, say N. If
683 you have a system with more than one CPU, say Y.
685 If you say N here, the kernel will run on single and multiprocessor
686 machines, but will use only one CPU of a multiprocessor machine. If
687 you say Y here, the kernel will run on many, but not all,
688 singleprocessor machines. On a singleprocessor machine, the kernel
689 will run faster if you say N here.
691 People using multiprocessor machines who say Y here should also say
692 Y to "Enhanced Real Time Clock Support", below.
694 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
695 available at <http://www.tldp.org/docs.html#howto>.
697 If you don't know what to do here, say N.
700 int "Maximum number of CPUs (2-32)"
703 default "4" if CPU_SUBTYPE_SHX3
706 This allows you to specify the maximum number of CPUs which this
707 kernel will support. The maximum supported value is 32 and the
708 minimum value which makes sense is 2.
710 This is purely to save memory - each supported CPU adds
711 approximately eight kilobytes to the kernel image.
714 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
715 depends on SMP && HOTPLUG && EXPERIMENTAL
717 Say Y here to experiment with turning CPUs off and on. CPUs
718 can be controlled through /sys/devices/system/cpu.
720 source "kernel/Kconfig.preempt"
724 depends on !SMP && SUPERH32
726 This enables support for gUSA (general UserSpace Atomicity).
727 This is the default implementation for both UP and non-ll/sc
728 CPUs, and is used by the libc, amongst others.
730 For additional information, design information can be found
731 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
733 This should only be disabled for special cases where alternate
734 atomicity implementations exist.
737 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
738 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
740 Enabling this option will allow the kernel to implement some
741 atomic operations using a software implementation of load-locked/
742 store-conditional (LLSC). On machines which do not have hardware
743 LLSC, this should be more efficient than the other alternative of
744 disabling interrupts around the atomic sequence.
746 config HW_PERF_EVENTS
747 bool "Enable hardware performance counter support for perf events"
748 depends on PERF_EVENTS && CPU_HAS_PMU
751 Enable hardware performance counter support for perf events. If
752 disabled, perf events will use software events only.
754 source "drivers/sh/Kconfig"
760 config ZERO_PAGE_OFFSET
762 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
763 SH_7751_SOLUTION_ENGINE
764 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
765 default "0x00002000" if PAGE_SIZE_8KB
768 This sets the default offset of zero page.
770 config BOOT_LINK_OFFSET
772 default "0x00210000" if SH_SHMIN
773 default "0x00400000" if SH_CAYMAN
774 default "0x00810000" if SH_7780_SOLUTION_ENGINE
775 default "0x009e0000" if SH_TITAN
776 default "0x01800000" if SH_SDK7780
777 default "0x02000000" if SH_EDOSK7760
780 This option allows you to set the link address offset of the zImage.
781 This can be useful if you are on a board which has a small amount of
786 default "0x00001000" if PAGE_SIZE_4KB
787 default "0x00002000" if PAGE_SIZE_8KB
788 default "0x00004000" if PAGE_SIZE_16KB
789 default "0x00010000" if PAGE_SIZE_64KB
792 config ROMIMAGE_MMCIF
793 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
794 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
796 Say Y here to include experimental MMCIF loading code in
797 romImage. With this enabled it is possible to write the romImage
798 kernel image to an MMC card and boot the kernel straight from
799 the reset vector. At reset the processor Mask ROM will load the
800 first part of the romImage which in turn loads the rest the kernel
801 image to RAM using the MMCIF hardware block.
804 prompt "Kernel command line"
806 default CMDLINE_OVERWRITE
808 Setting this option allows the kernel command line arguments
811 config CMDLINE_OVERWRITE
812 bool "Overwrite bootloader kernel arguments"
814 Given string will overwrite any arguments passed in by
817 config CMDLINE_EXTEND
818 bool "Extend bootloader kernel arguments"
820 Given string will be concatenated with arguments passed in
826 string "Kernel command line arguments string"
827 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
828 default "console=ttySC1,115200"
835 tristate "SuperHyway Bus support"
836 depends on CPU_SUBTYPE_SH4_202
839 bool "Maple Bus support"
840 depends on SH_DREAMCAST
842 The Maple Bus is SEGA's serial communication bus for peripherals
843 on the Dreamcast. Without this bus support you won't be able to
844 get your Dreamcast keyboard etc to work, so most users
845 probably want to say 'Y' here, unless you are only using the
846 Dreamcast with a serial line terminal or a remote network
851 depends on SYS_SUPPORTS_PCI
854 Find out whether you have a PCI motherboard. PCI is the name of a
855 bus system, i.e. the way the CPU talks to the other stuff inside
856 your box. If you have PCI, say Y, otherwise N.
861 source "drivers/pci/pcie/Kconfig"
863 source "drivers/pci/Kconfig"
865 source "drivers/pcmcia/Kconfig"
867 source "drivers/pci/hotplug/Kconfig"
871 menu "Executable file formats"
873 source "fs/Kconfig.binfmt"
877 menu "Power management options (EXPERIMENTAL)"
878 depends on EXPERIMENTAL
880 source "kernel/power/Kconfig"
882 source "drivers/cpuidle/Kconfig"
888 source "drivers/Kconfig"
892 source "arch/sh/Kconfig.debug"
894 source "security/Kconfig"
896 source "crypto/Kconfig"
898 menuconfig VIRTUALIZATION
899 bool "Virtualization"
902 Say Y here to get to see options for using your Linux host to run other
903 operating systems inside virtual machines (guests).
904 This option alone does not add any kernel code.
906 If you say N, all options in this submenu will be skipped and disabled.
910 source drivers/virtio/Kconfig
912 endif # VIRTUALIZATION