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
255 prompt "Processor sub-type selection"
261 # SH-2 Processor Support
263 config CPU_SUBTYPE_SH7619
264 bool "Support SH7619 processor"
266 select SYS_SUPPORTS_CMT
268 # SH-2A Processor Support
270 config CPU_SUBTYPE_SH7201
271 bool "Support SH7201 processor"
274 select SYS_SUPPORTS_MTU2
276 config CPU_SUBTYPE_SH7203
277 bool "Support SH7203 processor"
280 select SYS_SUPPORTS_CMT
281 select SYS_SUPPORTS_MTU2
283 config CPU_SUBTYPE_SH7206
284 bool "Support SH7206 processor"
286 select SYS_SUPPORTS_CMT
287 select SYS_SUPPORTS_MTU2
289 config CPU_SUBTYPE_SH7263
290 bool "Support SH7263 processor"
293 select SYS_SUPPORTS_CMT
294 select SYS_SUPPORTS_MTU2
296 config CPU_SUBTYPE_MXG
297 bool "Support MX-G processor"
299 select SYS_SUPPORTS_MTU2
301 Select MX-G if running on an R8A03022BG part.
303 # SH-3 Processor Support
305 config CPU_SUBTYPE_SH7705
306 bool "Support SH7705 processor"
309 config CPU_SUBTYPE_SH7706
310 bool "Support SH7706 processor"
313 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
315 config CPU_SUBTYPE_SH7707
316 bool "Support SH7707 processor"
319 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
321 config CPU_SUBTYPE_SH7708
322 bool "Support SH7708 processor"
325 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
326 if you have a 100 Mhz SH-3 HD6417708R CPU.
328 config CPU_SUBTYPE_SH7709
329 bool "Support SH7709 processor"
332 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
334 config CPU_SUBTYPE_SH7710
335 bool "Support SH7710 processor"
339 Select SH7710 if you have a SH3-DSP SH7710 CPU.
341 config CPU_SUBTYPE_SH7712
342 bool "Support SH7712 processor"
346 Select SH7712 if you have a SH3-DSP SH7712 CPU.
348 config CPU_SUBTYPE_SH7720
349 bool "Support SH7720 processor"
352 select SYS_SUPPORTS_CMT
354 Select SH7720 if you have a SH3-DSP SH7720 CPU.
356 config CPU_SUBTYPE_SH7721
357 bool "Support SH7721 processor"
360 select SYS_SUPPORTS_CMT
362 Select SH7721 if you have a SH3-DSP SH7721 CPU.
364 # SH-4 Processor Support
366 config CPU_SUBTYPE_SH7750
367 bool "Support SH7750 processor"
370 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
372 config CPU_SUBTYPE_SH7091
373 bool "Support SH7091 processor"
376 Select SH7091 if you have an SH-4 based Sega device (such as
377 the Dreamcast, Naomi, and Naomi 2).
379 config CPU_SUBTYPE_SH7750R
380 bool "Support SH7750R processor"
383 config CPU_SUBTYPE_SH7750S
384 bool "Support SH7750S processor"
387 config CPU_SUBTYPE_SH7751
388 bool "Support SH7751 processor"
391 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
392 or if you have a HD6417751R CPU.
394 config CPU_SUBTYPE_SH7751R
395 bool "Support SH7751R processor"
398 config CPU_SUBTYPE_SH7760
399 bool "Support SH7760 processor"
402 config CPU_SUBTYPE_SH4_202
403 bool "Support SH4-202 processor"
406 # SH-4A Processor Support
408 config CPU_SUBTYPE_SH7723
409 bool "Support SH7723 processor"
413 select ARCH_SPARSEMEM_ENABLE
414 select SYS_SUPPORTS_CMT
416 Select SH7723 if you have an SH-MobileR2 CPU.
418 config CPU_SUBTYPE_SH7724
419 bool "Support SH7724 processor"
423 select ARCH_SPARSEMEM_ENABLE
424 select SYS_SUPPORTS_CMT
426 Select SH7724 if you have an SH-MobileR2R CPU.
428 config CPU_SUBTYPE_SH7757
429 bool "Support SH7757 processor"
433 Select SH7757 if you have a SH4A SH7757 CPU.
435 config CPU_SUBTYPE_SH7763
436 bool "Support SH7763 processor"
439 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
441 config CPU_SUBTYPE_SH7770
442 bool "Support SH7770 processor"
445 config CPU_SUBTYPE_SH7780
446 bool "Support SH7780 processor"
449 config CPU_SUBTYPE_SH7785
450 bool "Support SH7785 processor"
453 select ARCH_SPARSEMEM_ENABLE
454 select SYS_SUPPORTS_NUMA
456 config CPU_SUBTYPE_SH7786
457 bool "Support SH7786 processor"
460 select CPU_HAS_PTEAEX
461 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
463 config CPU_SUBTYPE_SHX3
464 bool "Support SH-X3 processor"
467 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
469 # SH4AL-DSP Processor Support
471 config CPU_SUBTYPE_SH7343
472 bool "Support SH7343 processor"
475 select SYS_SUPPORTS_CMT
477 config CPU_SUBTYPE_SH7722
478 bool "Support SH7722 processor"
482 select ARCH_SPARSEMEM_ENABLE
483 select SYS_SUPPORTS_NUMA
484 select SYS_SUPPORTS_CMT
486 config CPU_SUBTYPE_SH7366
487 bool "Support SH7366 processor"
491 select ARCH_SPARSEMEM_ENABLE
492 select SYS_SUPPORTS_NUMA
493 select SYS_SUPPORTS_CMT
502 prompt "Processor sub-type selection"
504 # SH-5 Processor Support
506 config CPU_SUBTYPE_SH5_101
507 bool "Support SH5-101 processor"
510 config CPU_SUBTYPE_SH5_103
511 bool "Support SH5-103 processor"
518 source "arch/sh/mm/Kconfig"
520 source "arch/sh/Kconfig.cpu"
522 source "arch/sh/boards/Kconfig"
524 menu "Timer and clock configuration"
527 bool "TMU timer driver"
528 depends on SYS_SUPPORTS_TMU
531 This enables the build of the TMU timer driver.
534 bool "CMT timer driver"
535 depends on SYS_SUPPORTS_CMT
538 This enables build of the CMT timer driver.
541 bool "MTU2 timer driver"
542 depends on SYS_SUPPORTS_MTU2
545 This enables build of the MTU2 timer driver.
548 int "Peripheral clock frequency (in Hz)"
549 depends on SH_CLK_CPG_LEGACY
550 default "31250000" if CPU_SUBTYPE_SH7619
551 default "33333333" if CPU_SUBTYPE_SH7770 || \
552 CPU_SUBTYPE_SH7760 || \
553 CPU_SUBTYPE_SH7705 || \
554 CPU_SUBTYPE_SH7203 || \
555 CPU_SUBTYPE_SH7206 || \
556 CPU_SUBTYPE_SH7263 || \
558 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
559 default "66000000" if CPU_SUBTYPE_SH4_202
562 This option is used to specify the peripheral clock frequency.
563 This is necessary for determining the reference clock value on
564 platforms lacking an RTC.
569 config SH_CLK_CPG_LEGACY
570 depends on SH_CLK_CPG
571 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
575 int "CPU Mode Pin Setting"
577 default 6 if CPU_SUBTYPE_SH7206
578 default 5 if CPU_SUBTYPE_SH7619
581 MD2 - MD0 pin setting.
583 source "kernel/time/Kconfig"
587 menu "CPU Frequency scaling"
589 source "drivers/cpufreq/Kconfig"
592 tristate "SuperH CPU Frequency driver"
594 select CPU_FREQ_TABLE
596 This adds the cpufreq driver for SuperH. Any CPU that supports
597 clock rate rounding through the clock framework can use this
598 driver. While it will make the kernel slightly larger, this is
599 harmless for CPUs that don't support rate rounding. The driver
600 will also generate a notice in the boot log before disabling
601 itself if the CPU in question is not capable of rate rounding.
603 For details, take a look at <file:Documentation/cpu-freq>.
609 source "arch/sh/drivers/Kconfig"
613 menu "Kernel features"
615 source kernel/Kconfig.hz
618 bool "kexec system call (EXPERIMENTAL)"
619 depends on SUPERH32 && EXPERIMENTAL && MMU
621 kexec is a system call that implements the ability to shutdown your
622 current kernel, and to start another kernel. It is like a reboot
623 but it is independent of the system firmware. And like a reboot
624 you can start any kernel with it, not just Linux.
626 The name comes from the similarity to the exec system call.
628 It is an ongoing process to be certain the hardware in a machine
629 is properly shutdown, so do not be surprised if this code does not
630 initially work for you. It may help to enable device hotplugging
631 support. As of this writing the exact hardware interface is
632 strongly in flux, so no good recommendation can be made.
635 bool "kernel crash dumps (EXPERIMENTAL)"
636 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
638 Generate crash dump after being started by kexec.
639 This should be normally only set in special crash dump kernels
640 which are loaded in the main kernel with kexec-tools into
641 a specially reserved region and then later executed after
642 a crash by kdump/kexec. The crash dump kernel must be compiled
643 to a memory address not used by the main kernel using
646 For more details see Documentation/kdump/kdump.txt
649 bool "kexec jump (EXPERIMENTAL)"
650 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
652 Jump between original kernel and kexeced kernel and invoke
656 bool "Enable seccomp to safely compute untrusted bytecode"
659 This kernel feature is useful for number crunching applications
660 that may need to compute untrusted bytecode during their
661 execution. By using pipes or other transports made available to
662 the process as file descriptors supporting the read/write
663 syscalls, it's possible to isolate those applications in
664 their own address space using seccomp. Once seccomp is
665 enabled via prctl, it cannot be disabled and the task is only
666 allowed to execute a few safe syscalls defined by each seccomp
672 bool "Symmetric multi-processing support"
673 depends on SYS_SUPPORTS_SMP
674 select USE_GENERIC_SMP_HELPERS
676 This enables support for systems with more than one CPU. If you have
677 a system with only one CPU, like most personal computers, say N. If
678 you have a system with more than one CPU, say Y.
680 If you say N here, the kernel will run on single and multiprocessor
681 machines, but will use only one CPU of a multiprocessor machine. If
682 you say Y here, the kernel will run on many, but not all,
683 singleprocessor machines. On a singleprocessor machine, the kernel
684 will run faster if you say N here.
686 People using multiprocessor machines who say Y here should also say
687 Y to "Enhanced Real Time Clock Support", below.
689 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
690 available at <http://www.tldp.org/docs.html#howto>.
692 If you don't know what to do here, say N.
695 int "Maximum number of CPUs (2-32)"
698 default "4" if CPU_SUBTYPE_SHX3
701 This allows you to specify the maximum number of CPUs which this
702 kernel will support. The maximum supported value is 32 and the
703 minimum value which makes sense is 2.
705 This is purely to save memory - each supported CPU adds
706 approximately eight kilobytes to the kernel image.
709 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
710 depends on SMP && HOTPLUG && EXPERIMENTAL
712 Say Y here to experiment with turning CPUs off and on. CPUs
713 can be controlled through /sys/devices/system/cpu.
715 source "kernel/Kconfig.preempt"
719 depends on !SMP && SUPERH32
721 This enables support for gUSA (general UserSpace Atomicity).
722 This is the default implementation for both UP and non-ll/sc
723 CPUs, and is used by the libc, amongst others.
725 For additional information, design information can be found
726 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
728 This should only be disabled for special cases where alternate
729 atomicity implementations exist.
732 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
733 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
735 Enabling this option will allow the kernel to implement some
736 atomic operations using a software implementation of load-locked/
737 store-conditional (LLSC). On machines which do not have hardware
738 LLSC, this should be more efficient than the other alternative of
739 disabling interrupts around the atomic sequence.
741 source "drivers/sh/Kconfig"
747 config ZERO_PAGE_OFFSET
749 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
750 SH_7751_SOLUTION_ENGINE
751 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
752 default "0x00002000" if PAGE_SIZE_8KB
755 This sets the default offset of zero page.
757 config BOOT_LINK_OFFSET
759 default "0x00210000" if SH_SHMIN
760 default "0x00400000" if SH_CAYMAN
761 default "0x00810000" if SH_7780_SOLUTION_ENGINE
762 default "0x009e0000" if SH_TITAN
763 default "0x01800000" if SH_SDK7780
764 default "0x02000000" if SH_EDOSK7760
767 This option allows you to set the link address offset of the zImage.
768 This can be useful if you are on a board which has a small amount of
773 default "0x00001000" if PAGE_SIZE_4KB
774 default "0x00002000" if PAGE_SIZE_8KB
775 default "0x00004000" if PAGE_SIZE_16KB
776 default "0x00010000" if PAGE_SIZE_64KB
779 config ROMIMAGE_MMCIF
780 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
781 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
783 Say Y here to include experimental MMCIF loading code in
784 romImage. With this enabled it is possible to write the romImage
785 kernel image to an MMC card and boot the kernel straight from
786 the reset vector. At reset the processor Mask ROM will load the
787 first part of the romImage which in turn loads the rest the kernel
788 image to RAM using the MMCIF hardware block.
791 prompt "Kernel command line"
793 default CMDLINE_OVERWRITE
795 Setting this option allows the kernel command line arguments
798 config CMDLINE_OVERWRITE
799 bool "Overwrite bootloader kernel arguments"
801 Given string will overwrite any arguments passed in by
804 config CMDLINE_EXTEND
805 bool "Extend bootloader kernel arguments"
807 Given string will be concatenated with arguments passed in
813 string "Kernel command line arguments string"
814 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
815 default "console=ttySC1,115200"
822 tristate "SuperHyway Bus support"
823 depends on CPU_SUBTYPE_SH4_202
826 bool "Maple Bus support"
827 depends on SH_DREAMCAST
829 The Maple Bus is SEGA's serial communication bus for peripherals
830 on the Dreamcast. Without this bus support you won't be able to
831 get your Dreamcast keyboard etc to work, so most users
832 probably want to say 'Y' here, unless you are only using the
833 Dreamcast with a serial line terminal or a remote network
838 depends on SYS_SUPPORTS_PCI
841 Find out whether you have a PCI motherboard. PCI is the name of a
842 bus system, i.e. the way the CPU talks to the other stuff inside
843 your box. If you have PCI, say Y, otherwise N.
848 source "drivers/pci/pcie/Kconfig"
850 source "drivers/pci/Kconfig"
852 source "drivers/pcmcia/Kconfig"
854 source "drivers/pci/hotplug/Kconfig"
858 menu "Executable file formats"
860 source "fs/Kconfig.binfmt"
864 menu "Power management options (EXPERIMENTAL)"
865 depends on EXPERIMENTAL
867 source "kernel/power/Kconfig"
869 source "drivers/cpuidle/Kconfig"
875 source "drivers/Kconfig"
879 source "arch/sh/Kconfig.debug"
881 source "security/Kconfig"
883 source "crypto/Kconfig"
885 menuconfig VIRTUALIZATION
886 bool "Virtualization"
889 Say Y here to get to see options for using your Linux host to run other
890 operating systems inside virtual machines (guests).
891 This option alone does not add any kernel code.
893 If you say N, all options in this submenu will be skipped and disabled.
897 source drivers/virtio/Kconfig
899 endif # VIRTUALIZATION