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
104 config GENERIC_CLOCKEVENTS
107 config GENERIC_CLOCKEVENTS_BROADCAST
110 config GENERIC_CMOS_UPDATE
112 depends on SH_SH03 || SH_DREAMCAST
114 config GENERIC_LOCKBREAK
116 depends on SMP && PREEMPT
118 config SYS_SUPPORTS_PM
122 config ARCH_SUSPEND_POSSIBLE
125 config ARCH_HIBERNATION_POSSIBLE
128 config SYS_SUPPORTS_APM_EMULATION
130 select ARCH_SUSPEND_POSSIBLE
132 config SYS_SUPPORTS_HUGETLBFS
135 config SYS_SUPPORTS_SMP
138 config SYS_SUPPORTS_NUMA
141 config SYS_SUPPORTS_PCI
144 config SYS_SUPPORTS_CMT
147 config SYS_SUPPORTS_MTU2
150 config SYS_SUPPORTS_TMU
153 config STACKTRACE_SUPPORT
156 config LOCKDEP_SUPPORT
159 config HAVE_LATENCYTOP_SUPPORT
162 config ARCH_HAS_ILOG2_U32
165 config ARCH_HAS_ILOG2_U64
168 config ARCH_NO_VIRT_TO_BUS
171 config ARCH_HAS_DEFAULT_IDLE
174 config ARCH_HAS_CPU_IDLE_WAIT
186 config DMA_NONCOHERENT
187 def_bool !DMA_COHERENT
189 config NEED_DMA_MAP_STATE
190 def_bool DMA_NONCOHERENT
192 config NEED_SG_DMA_LENGTH
195 source "init/Kconfig"
197 source "kernel/Kconfig.freezer"
213 select CPU_HAS_INTEVT
215 select SYS_SUPPORTS_TMU
219 select CPU_HAS_INTEVT
221 select CPU_HAS_FPU if !CPU_SH4AL_DSP
222 select SYS_SUPPORTS_TMU
223 select SYS_SUPPORTS_HUGETLBFS if MMU
237 select SYS_SUPPORTS_TMU
238 select SYS_SUPPORTS_HUGETLBFS if MMU
246 select SYS_SUPPORTS_SMP
247 select SYS_SUPPORTS_NUMA
251 select ARCH_SUSPEND_POSSIBLE
258 prompt "Processor sub-type selection"
264 # SH-2 Processor Support
266 config CPU_SUBTYPE_SH7619
267 bool "Support SH7619 processor"
269 select SYS_SUPPORTS_CMT
271 # SH-2A Processor Support
273 config CPU_SUBTYPE_SH7201
274 bool "Support SH7201 processor"
277 select SYS_SUPPORTS_MTU2
279 config CPU_SUBTYPE_SH7203
280 bool "Support SH7203 processor"
283 select SYS_SUPPORTS_CMT
284 select SYS_SUPPORTS_MTU2
286 config CPU_SUBTYPE_SH7206
287 bool "Support SH7206 processor"
289 select SYS_SUPPORTS_CMT
290 select SYS_SUPPORTS_MTU2
292 config CPU_SUBTYPE_SH7263
293 bool "Support SH7263 processor"
296 select SYS_SUPPORTS_CMT
297 select SYS_SUPPORTS_MTU2
299 config CPU_SUBTYPE_MXG
300 bool "Support MX-G processor"
302 select SYS_SUPPORTS_MTU2
304 Select MX-G if running on an R8A03022BG part.
306 # SH-3 Processor Support
308 config CPU_SUBTYPE_SH7705
309 bool "Support SH7705 processor"
312 config CPU_SUBTYPE_SH7706
313 bool "Support SH7706 processor"
316 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
318 config CPU_SUBTYPE_SH7707
319 bool "Support SH7707 processor"
322 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
324 config CPU_SUBTYPE_SH7708
325 bool "Support SH7708 processor"
328 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
329 if you have a 100 Mhz SH-3 HD6417708R CPU.
331 config CPU_SUBTYPE_SH7709
332 bool "Support SH7709 processor"
335 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
337 config CPU_SUBTYPE_SH7710
338 bool "Support SH7710 processor"
342 Select SH7710 if you have a SH3-DSP SH7710 CPU.
344 config CPU_SUBTYPE_SH7712
345 bool "Support SH7712 processor"
349 Select SH7712 if you have a SH3-DSP SH7712 CPU.
351 config CPU_SUBTYPE_SH7720
352 bool "Support SH7720 processor"
355 select SYS_SUPPORTS_CMT
357 Select SH7720 if you have a SH3-DSP SH7720 CPU.
359 config CPU_SUBTYPE_SH7721
360 bool "Support SH7721 processor"
363 select SYS_SUPPORTS_CMT
365 Select SH7721 if you have a SH3-DSP SH7721 CPU.
367 # SH-4 Processor Support
369 config CPU_SUBTYPE_SH7750
370 bool "Support SH7750 processor"
373 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
375 config CPU_SUBTYPE_SH7091
376 bool "Support SH7091 processor"
379 Select SH7091 if you have an SH-4 based Sega device (such as
380 the Dreamcast, Naomi, and Naomi 2).
382 config CPU_SUBTYPE_SH7750R
383 bool "Support SH7750R processor"
386 config CPU_SUBTYPE_SH7750S
387 bool "Support SH7750S processor"
390 config CPU_SUBTYPE_SH7751
391 bool "Support SH7751 processor"
394 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
395 or if you have a HD6417751R CPU.
397 config CPU_SUBTYPE_SH7751R
398 bool "Support SH7751R processor"
401 config CPU_SUBTYPE_SH7760
402 bool "Support SH7760 processor"
405 config CPU_SUBTYPE_SH4_202
406 bool "Support SH4-202 processor"
409 # SH-4A Processor Support
411 config CPU_SUBTYPE_SH7723
412 bool "Support SH7723 processor"
416 select ARCH_SPARSEMEM_ENABLE
417 select SYS_SUPPORTS_CMT
419 Select SH7723 if you have an SH-MobileR2 CPU.
421 config CPU_SUBTYPE_SH7724
422 bool "Support SH7724 processor"
426 select ARCH_SPARSEMEM_ENABLE
427 select SYS_SUPPORTS_CMT
429 Select SH7724 if you have an SH-MobileR2R CPU.
431 config CPU_SUBTYPE_SH7757
432 bool "Support SH7757 processor"
436 Select SH7757 if you have a SH4A SH7757 CPU.
438 config CPU_SUBTYPE_SH7763
439 bool "Support SH7763 processor"
442 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
444 config CPU_SUBTYPE_SH7770
445 bool "Support SH7770 processor"
448 config CPU_SUBTYPE_SH7780
449 bool "Support SH7780 processor"
452 config CPU_SUBTYPE_SH7785
453 bool "Support SH7785 processor"
456 select ARCH_SPARSEMEM_ENABLE
457 select SYS_SUPPORTS_NUMA
459 config CPU_SUBTYPE_SH7786
460 bool "Support SH7786 processor"
463 select CPU_HAS_PTEAEX
464 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
466 config CPU_SUBTYPE_SHX3
467 bool "Support SH-X3 processor"
470 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
472 # SH4AL-DSP Processor Support
474 config CPU_SUBTYPE_SH7343
475 bool "Support SH7343 processor"
478 select SYS_SUPPORTS_CMT
480 config CPU_SUBTYPE_SH7722
481 bool "Support SH7722 processor"
485 select ARCH_SPARSEMEM_ENABLE
486 select SYS_SUPPORTS_NUMA
487 select SYS_SUPPORTS_CMT
489 config CPU_SUBTYPE_SH7366
490 bool "Support SH7366 processor"
494 select ARCH_SPARSEMEM_ENABLE
495 select SYS_SUPPORTS_NUMA
496 select SYS_SUPPORTS_CMT
505 prompt "Processor sub-type selection"
507 # SH-5 Processor Support
509 config CPU_SUBTYPE_SH5_101
510 bool "Support SH5-101 processor"
513 config CPU_SUBTYPE_SH5_103
514 bool "Support SH5-103 processor"
521 source "arch/sh/mm/Kconfig"
523 source "arch/sh/Kconfig.cpu"
525 source "arch/sh/boards/Kconfig"
527 menu "Timer and clock configuration"
530 bool "TMU timer driver"
531 depends on SYS_SUPPORTS_TMU
534 This enables the build of the TMU timer driver.
537 bool "CMT timer driver"
538 depends on SYS_SUPPORTS_CMT
541 This enables build of the CMT timer driver.
544 bool "MTU2 timer driver"
545 depends on SYS_SUPPORTS_MTU2
548 This enables build of the MTU2 timer driver.
551 int "Peripheral clock frequency (in Hz)"
552 depends on SH_CLK_CPG_LEGACY
553 default "31250000" if CPU_SUBTYPE_SH7619
554 default "33333333" if CPU_SUBTYPE_SH7770 || \
555 CPU_SUBTYPE_SH7760 || \
556 CPU_SUBTYPE_SH7705 || \
557 CPU_SUBTYPE_SH7203 || \
558 CPU_SUBTYPE_SH7206 || \
559 CPU_SUBTYPE_SH7263 || \
561 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
562 default "66000000" if CPU_SUBTYPE_SH4_202
565 This option is used to specify the peripheral clock frequency.
566 This is necessary for determining the reference clock value on
567 platforms lacking an RTC.
572 config SH_CLK_CPG_LEGACY
573 depends on SH_CLK_CPG
574 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
578 int "CPU Mode Pin Setting"
580 default 6 if CPU_SUBTYPE_SH7206
581 default 5 if CPU_SUBTYPE_SH7619
584 MD2 - MD0 pin setting.
586 source "kernel/time/Kconfig"
590 menu "CPU Frequency scaling"
592 source "drivers/cpufreq/Kconfig"
595 tristate "SuperH CPU Frequency driver"
597 select CPU_FREQ_TABLE
599 This adds the cpufreq driver for SuperH. Any CPU that supports
600 clock rate rounding through the clock framework can use this
601 driver. While it will make the kernel slightly larger, this is
602 harmless for CPUs that don't support rate rounding. The driver
603 will also generate a notice in the boot log before disabling
604 itself if the CPU in question is not capable of rate rounding.
606 For details, take a look at <file:Documentation/cpu-freq>.
612 source "arch/sh/drivers/Kconfig"
616 menu "Kernel features"
618 source kernel/Kconfig.hz
621 bool "kexec system call (EXPERIMENTAL)"
622 depends on SUPERH32 && EXPERIMENTAL && MMU
624 kexec is a system call that implements the ability to shutdown your
625 current kernel, and to start another kernel. It is like a reboot
626 but it is independent of the system firmware. And like a reboot
627 you can start any kernel with it, not just Linux.
629 The name comes from the similarity to the exec system call.
631 It is an ongoing process to be certain the hardware in a machine
632 is properly shutdown, so do not be surprised if this code does not
633 initially work for you. It may help to enable device hotplugging
634 support. As of this writing the exact hardware interface is
635 strongly in flux, so no good recommendation can be made.
638 bool "kernel crash dumps (EXPERIMENTAL)"
639 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
641 Generate crash dump after being started by kexec.
642 This should be normally only set in special crash dump kernels
643 which are loaded in the main kernel with kexec-tools into
644 a specially reserved region and then later executed after
645 a crash by kdump/kexec. The crash dump kernel must be compiled
646 to a memory address not used by the main kernel using
649 For more details see Documentation/kdump/kdump.txt
652 bool "kexec jump (EXPERIMENTAL)"
653 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
655 Jump between original kernel and kexeced kernel and invoke
659 bool "Enable seccomp to safely compute untrusted bytecode"
662 This kernel feature is useful for number crunching applications
663 that may need to compute untrusted bytecode during their
664 execution. By using pipes or other transports made available to
665 the process as file descriptors supporting the read/write
666 syscalls, it's possible to isolate those applications in
667 their own address space using seccomp. Once seccomp is
668 enabled via prctl, it cannot be disabled and the task is only
669 allowed to execute a few safe syscalls defined by each seccomp
675 bool "Symmetric multi-processing support"
676 depends on SYS_SUPPORTS_SMP
677 select USE_GENERIC_SMP_HELPERS
679 This enables support for systems with more than one CPU. If you have
680 a system with only one CPU, like most personal computers, say N. If
681 you have a system with more than one CPU, say Y.
683 If you say N here, the kernel will run on single 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 singleprocessor machines. On a singleprocessor 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)"
713 depends on SMP && HOTPLUG && 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 source "drivers/sh/Kconfig"
750 config ZERO_PAGE_OFFSET
752 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
753 SH_7751_SOLUTION_ENGINE
754 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
755 default "0x00002000" if PAGE_SIZE_8KB
758 This sets the default offset of zero page.
760 config BOOT_LINK_OFFSET
762 default "0x00210000" if SH_SHMIN
763 default "0x00400000" if SH_CAYMAN
764 default "0x00810000" if SH_7780_SOLUTION_ENGINE
765 default "0x009e0000" if SH_TITAN
766 default "0x01800000" if SH_SDK7780
767 default "0x02000000" if SH_EDOSK7760
770 This option allows you to set the link address offset of the zImage.
771 This can be useful if you are on a board which has a small amount of
776 default "0x00001000" if PAGE_SIZE_4KB
777 default "0x00002000" if PAGE_SIZE_8KB
778 default "0x00004000" if PAGE_SIZE_16KB
779 default "0x00010000" if PAGE_SIZE_64KB
782 config ROMIMAGE_MMCIF
783 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
784 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
786 Say Y here to include experimental MMCIF loading code in
787 romImage. With this enabled it is possible to write the romImage
788 kernel image to an MMC card and boot the kernel straight from
789 the reset vector. At reset the processor Mask ROM will load the
790 first part of the romImage which in turn loads the rest the kernel
791 image to RAM using the MMCIF hardware block.
794 prompt "Kernel command line"
796 default CMDLINE_OVERWRITE
798 Setting this option allows the kernel command line arguments
801 config CMDLINE_OVERWRITE
802 bool "Overwrite bootloader kernel arguments"
804 Given string will overwrite any arguments passed in by
807 config CMDLINE_EXTEND
808 bool "Extend bootloader kernel arguments"
810 Given string will be concatenated with arguments passed in
816 string "Kernel command line arguments string"
817 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
818 default "console=ttySC1,115200"
825 tristate "SuperHyway Bus support"
826 depends on CPU_SUBTYPE_SH4_202
829 bool "Maple Bus support"
830 depends on SH_DREAMCAST
832 The Maple Bus is SEGA's serial communication bus for peripherals
833 on the Dreamcast. Without this bus support you won't be able to
834 get your Dreamcast keyboard etc to work, so most users
835 probably want to say 'Y' here, unless you are only using the
836 Dreamcast with a serial line terminal or a remote network
841 depends on SYS_SUPPORTS_PCI
844 Find out whether you have a PCI motherboard. PCI is the name of a
845 bus system, i.e. the way the CPU talks to the other stuff inside
846 your box. If you have PCI, say Y, otherwise N.
851 source "drivers/pci/pcie/Kconfig"
853 source "drivers/pci/Kconfig"
855 source "drivers/pcmcia/Kconfig"
857 source "drivers/pci/hotplug/Kconfig"
861 menu "Executable file formats"
863 source "fs/Kconfig.binfmt"
867 menu "Power management options (EXPERIMENTAL)"
868 depends on EXPERIMENTAL
870 source "kernel/power/Kconfig"
872 source "drivers/cpuidle/Kconfig"
878 source "drivers/Kconfig"
882 source "arch/sh/Kconfig.debug"
884 source "security/Kconfig"
886 source "crypto/Kconfig"
888 menuconfig VIRTUALIZATION
889 bool "Virtualization"
892 Say Y here to get to see options for using your Linux host to run other
893 operating systems inside virtual machines (guests).
894 This option alone does not add any kernel code.
896 If you say N, all options in this submenu will be skipped and disabled.
900 source drivers/virtio/Kconfig
902 endif # VIRTUALIZATION