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
26 select HAVE_REGS_AND_STACK_ACCESS_API
28 select GENERIC_ATOMIC64
30 The SuperH is a RISC processor targeted for use in embedded systems
31 and consumer electronics; it was also used in the Sega Dreamcast
32 gaming console. The SuperH port has a home page at
33 <http://www.linux-sh.org/>.
38 select HAVE_KRETPROBES
39 select HAVE_IOREMAP_PROT if MMU && !X2TLB
40 select HAVE_FUNCTION_TRACER
41 select HAVE_FTRACE_MCOUNT_RECORD
42 select HAVE_DYNAMIC_FTRACE
43 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
44 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
45 select HAVE_FUNCTION_GRAPH_TRACER
47 select HAVE_HW_BREAKPOINT
48 select HAVE_MIXED_BREAKPOINTS_REGS
49 select PERF_EVENTS if HAVE_HW_BREAKPOINT
50 select ARCH_HIBERNATION_POSSIBLE if MMU
53 def_bool ARCH = "sh64"
57 default "arch/sh/configs/shx3_defconfig" if SUPERH32
58 default "arch/sh/configs/cayman_defconfig" if SUPERH64
60 config RWSEM_GENERIC_SPINLOCK
63 config RWSEM_XCHGADD_ALGORITHM
68 depends on BUG && SUPERH32
74 config GENERIC_FIND_NEXT_BIT
77 config GENERIC_HWEIGHT
80 config GENERIC_HARDIRQS
83 config GENERIC_HARDIRQS_NO__DO_IRQ
96 config GENERIC_CALIBRATE_DELAY
105 config GENERIC_CLOCKEVENTS
108 config GENERIC_CLOCKEVENTS_BROADCAST
111 config GENERIC_CMOS_UPDATE
113 depends on SH_SH03 || SH_DREAMCAST
115 config GENERIC_LOCKBREAK
117 depends on SMP && PREEMPT
119 config SYS_SUPPORTS_PM
123 config ARCH_SUSPEND_POSSIBLE
126 config ARCH_HIBERNATION_POSSIBLE
129 config SYS_SUPPORTS_APM_EMULATION
131 select ARCH_SUSPEND_POSSIBLE
133 config SYS_SUPPORTS_HUGETLBFS
136 config SYS_SUPPORTS_SMP
139 config SYS_SUPPORTS_NUMA
142 config SYS_SUPPORTS_PCI
145 config SYS_SUPPORTS_CMT
148 config SYS_SUPPORTS_MTU2
151 config SYS_SUPPORTS_TMU
154 config STACKTRACE_SUPPORT
157 config LOCKDEP_SUPPORT
160 config HAVE_LATENCYTOP_SUPPORT
163 config ARCH_HAS_ILOG2_U32
166 config ARCH_HAS_ILOG2_U64
169 config ARCH_NO_VIRT_TO_BUS
172 config ARCH_HAS_DEFAULT_IDLE
175 config ARCH_HAS_CPU_IDLE_WAIT
187 config DMA_NONCOHERENT
188 def_bool !DMA_COHERENT
190 config NEED_DMA_MAP_STATE
191 def_bool DMA_NONCOHERENT
193 config NEED_SG_DMA_LENGTH
196 source "init/Kconfig"
198 source "kernel/Kconfig.freezer"
214 select CPU_HAS_INTEVT
216 select SYS_SUPPORTS_TMU
220 select CPU_HAS_INTEVT
222 select CPU_HAS_FPU if !CPU_SH4AL_DSP
223 select SYS_SUPPORTS_TMU
224 select SYS_SUPPORTS_HUGETLBFS if MMU
238 select SYS_SUPPORTS_TMU
239 select SYS_SUPPORTS_HUGETLBFS if MMU
247 select SYS_SUPPORTS_SMP
248 select SYS_SUPPORTS_NUMA
252 select ARCH_SUSPEND_POSSIBLE
259 prompt "Processor sub-type selection"
265 # SH-2 Processor Support
267 config CPU_SUBTYPE_SH7619
268 bool "Support SH7619 processor"
270 select SYS_SUPPORTS_CMT
272 # SH-2A Processor Support
274 config CPU_SUBTYPE_SH7201
275 bool "Support SH7201 processor"
278 select SYS_SUPPORTS_MTU2
280 config CPU_SUBTYPE_SH7203
281 bool "Support SH7203 processor"
284 select SYS_SUPPORTS_CMT
285 select SYS_SUPPORTS_MTU2
287 config CPU_SUBTYPE_SH7206
288 bool "Support SH7206 processor"
290 select SYS_SUPPORTS_CMT
291 select SYS_SUPPORTS_MTU2
293 config CPU_SUBTYPE_SH7263
294 bool "Support SH7263 processor"
297 select SYS_SUPPORTS_CMT
298 select SYS_SUPPORTS_MTU2
300 config CPU_SUBTYPE_MXG
301 bool "Support MX-G processor"
303 select SYS_SUPPORTS_MTU2
305 Select MX-G if running on an R8A03022BG part.
307 # SH-3 Processor Support
309 config CPU_SUBTYPE_SH7705
310 bool "Support SH7705 processor"
313 config CPU_SUBTYPE_SH7706
314 bool "Support SH7706 processor"
317 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
319 config CPU_SUBTYPE_SH7707
320 bool "Support SH7707 processor"
323 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
325 config CPU_SUBTYPE_SH7708
326 bool "Support SH7708 processor"
329 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
330 if you have a 100 Mhz SH-3 HD6417708R CPU.
332 config CPU_SUBTYPE_SH7709
333 bool "Support SH7709 processor"
336 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
338 config CPU_SUBTYPE_SH7710
339 bool "Support SH7710 processor"
343 Select SH7710 if you have a SH3-DSP SH7710 CPU.
345 config CPU_SUBTYPE_SH7712
346 bool "Support SH7712 processor"
350 Select SH7712 if you have a SH3-DSP SH7712 CPU.
352 config CPU_SUBTYPE_SH7720
353 bool "Support SH7720 processor"
356 select SYS_SUPPORTS_CMT
358 Select SH7720 if you have a SH3-DSP SH7720 CPU.
360 config CPU_SUBTYPE_SH7721
361 bool "Support SH7721 processor"
364 select SYS_SUPPORTS_CMT
366 Select SH7721 if you have a SH3-DSP SH7721 CPU.
368 # SH-4 Processor Support
370 config CPU_SUBTYPE_SH7750
371 bool "Support SH7750 processor"
374 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
376 config CPU_SUBTYPE_SH7091
377 bool "Support SH7091 processor"
380 Select SH7091 if you have an SH-4 based Sega device (such as
381 the Dreamcast, Naomi, and Naomi 2).
383 config CPU_SUBTYPE_SH7750R
384 bool "Support SH7750R processor"
387 config CPU_SUBTYPE_SH7750S
388 bool "Support SH7750S processor"
391 config CPU_SUBTYPE_SH7751
392 bool "Support SH7751 processor"
395 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
396 or if you have a HD6417751R CPU.
398 config CPU_SUBTYPE_SH7751R
399 bool "Support SH7751R processor"
402 config CPU_SUBTYPE_SH7760
403 bool "Support SH7760 processor"
406 config CPU_SUBTYPE_SH4_202
407 bool "Support SH4-202 processor"
410 # SH-4A Processor Support
412 config CPU_SUBTYPE_SH7723
413 bool "Support SH7723 processor"
417 select ARCH_SPARSEMEM_ENABLE
418 select SYS_SUPPORTS_CMT
420 Select SH7723 if you have an SH-MobileR2 CPU.
422 config CPU_SUBTYPE_SH7724
423 bool "Support SH7724 processor"
427 select ARCH_SPARSEMEM_ENABLE
428 select SYS_SUPPORTS_CMT
430 Select SH7724 if you have an SH-MobileR2R CPU.
432 config CPU_SUBTYPE_SH7757
433 bool "Support SH7757 processor"
437 Select SH7757 if you have a SH4A SH7757 CPU.
439 config CPU_SUBTYPE_SH7763
440 bool "Support SH7763 processor"
443 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
445 config CPU_SUBTYPE_SH7770
446 bool "Support SH7770 processor"
449 config CPU_SUBTYPE_SH7780
450 bool "Support SH7780 processor"
453 config CPU_SUBTYPE_SH7785
454 bool "Support SH7785 processor"
457 select ARCH_SPARSEMEM_ENABLE
458 select SYS_SUPPORTS_NUMA
460 config CPU_SUBTYPE_SH7786
461 bool "Support SH7786 processor"
464 select CPU_HAS_PTEAEX
465 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
467 config CPU_SUBTYPE_SHX3
468 bool "Support SH-X3 processor"
471 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
473 # SH4AL-DSP Processor Support
475 config CPU_SUBTYPE_SH7343
476 bool "Support SH7343 processor"
479 select SYS_SUPPORTS_CMT
481 config CPU_SUBTYPE_SH7722
482 bool "Support SH7722 processor"
486 select ARCH_SPARSEMEM_ENABLE
487 select SYS_SUPPORTS_NUMA
488 select SYS_SUPPORTS_CMT
490 config CPU_SUBTYPE_SH7366
491 bool "Support SH7366 processor"
495 select ARCH_SPARSEMEM_ENABLE
496 select SYS_SUPPORTS_NUMA
497 select SYS_SUPPORTS_CMT
506 prompt "Processor sub-type selection"
508 # SH-5 Processor Support
510 config CPU_SUBTYPE_SH5_101
511 bool "Support SH5-101 processor"
514 config CPU_SUBTYPE_SH5_103
515 bool "Support SH5-103 processor"
522 source "arch/sh/mm/Kconfig"
524 source "arch/sh/Kconfig.cpu"
526 source "arch/sh/boards/Kconfig"
528 menu "Timer and clock configuration"
531 bool "TMU timer driver"
532 depends on SYS_SUPPORTS_TMU
535 This enables the build of the TMU timer driver.
538 bool "CMT timer driver"
539 depends on SYS_SUPPORTS_CMT
542 This enables build of the CMT timer driver.
545 bool "MTU2 timer driver"
546 depends on SYS_SUPPORTS_MTU2
549 This enables build of the MTU2 timer driver.
552 int "Peripheral clock frequency (in Hz)"
553 depends on SH_CLK_CPG_LEGACY
554 default "31250000" if CPU_SUBTYPE_SH7619
555 default "33333333" if CPU_SUBTYPE_SH7770 || \
556 CPU_SUBTYPE_SH7760 || \
557 CPU_SUBTYPE_SH7705 || \
558 CPU_SUBTYPE_SH7203 || \
559 CPU_SUBTYPE_SH7206 || \
560 CPU_SUBTYPE_SH7263 || \
562 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
563 default "66000000" if CPU_SUBTYPE_SH4_202
566 This option is used to specify the peripheral clock frequency.
567 This is necessary for determining the reference clock value on
568 platforms lacking an RTC.
573 config SH_CLK_CPG_LEGACY
574 depends on SH_CLK_CPG
575 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
576 !CPU_SUBTYPE_SH7786 && !CPU_SUBTYPE_SH7757
579 int "CPU Mode Pin Setting"
581 default 6 if CPU_SUBTYPE_SH7206
582 default 5 if CPU_SUBTYPE_SH7619
585 MD2 - MD0 pin setting.
587 source "kernel/time/Kconfig"
591 menu "CPU Frequency scaling"
593 source "drivers/cpufreq/Kconfig"
596 tristate "SuperH CPU Frequency driver"
598 select CPU_FREQ_TABLE
600 This adds the cpufreq driver for SuperH. Any CPU that supports
601 clock rate rounding through the clock framework can use this
602 driver. While it will make the kernel slightly larger, this is
603 harmless for CPUs that don't support rate rounding. The driver
604 will also generate a notice in the boot log before disabling
605 itself if the CPU in question is not capable of rate rounding.
607 For details, take a look at <file:Documentation/cpu-freq>.
613 source "arch/sh/drivers/Kconfig"
617 menu "Kernel features"
619 source kernel/Kconfig.hz
622 bool "kexec system call (EXPERIMENTAL)"
623 depends on SUPERH32 && EXPERIMENTAL && MMU
625 kexec is a system call that implements the ability to shutdown your
626 current kernel, and to start another kernel. It is like a reboot
627 but it is independent of the system firmware. And like a reboot
628 you can start any kernel with it, not just Linux.
630 The name comes from the similarity to the exec system call.
632 It is an ongoing process to be certain the hardware in a machine
633 is properly shutdown, so do not be surprised if this code does not
634 initially work for you. It may help to enable device hotplugging
635 support. As of this writing the exact hardware interface is
636 strongly in flux, so no good recommendation can be made.
639 bool "kernel crash dumps (EXPERIMENTAL)"
640 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
642 Generate crash dump after being started by kexec.
643 This should be normally only set in special crash dump kernels
644 which are loaded in the main kernel with kexec-tools into
645 a specially reserved region and then later executed after
646 a crash by kdump/kexec. The crash dump kernel must be compiled
647 to a memory address not used by the main kernel using
650 For more details see Documentation/kdump/kdump.txt
653 bool "kexec jump (EXPERIMENTAL)"
654 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
656 Jump between original kernel and kexeced kernel and invoke
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
678 select USE_GENERIC_SMP_HELPERS
680 This enables support for systems with more than one CPU. If you have
681 a system with only one CPU, like most personal computers, say N. If
682 you have a system with more than one CPU, say Y.
684 If you say N here, the kernel will run on single and multiprocessor
685 machines, but will use only one CPU of a multiprocessor machine. If
686 you say Y here, the kernel will run on many, but not all,
687 singleprocessor machines. On a singleprocessor machine, the kernel
688 will run faster if you say N here.
690 People using multiprocessor machines who say Y here should also say
691 Y to "Enhanced Real Time Clock Support", below.
693 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
694 available at <http://www.tldp.org/docs.html#howto>.
696 If you don't know what to do here, say N.
699 int "Maximum number of CPUs (2-32)"
702 default "4" if CPU_SUBTYPE_SHX3
705 This allows you to specify the maximum number of CPUs which this
706 kernel will support. The maximum supported value is 32 and the
707 minimum value which makes sense is 2.
709 This is purely to save memory - each supported CPU adds
710 approximately eight kilobytes to the kernel image.
713 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
714 depends on SMP && HOTPLUG && EXPERIMENTAL
716 Say Y here to experiment with turning CPUs off and on. CPUs
717 can be controlled through /sys/devices/system/cpu.
719 source "kernel/Kconfig.preempt"
723 depends on !SMP && SUPERH32
725 This enables support for gUSA (general UserSpace Atomicity).
726 This is the default implementation for both UP and non-ll/sc
727 CPUs, and is used by the libc, amongst others.
729 For additional information, design information can be found
730 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
732 This should only be disabled for special cases where alternate
733 atomicity implementations exist.
736 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
737 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
739 Enabling this option will allow the kernel to implement some
740 atomic operations using a software implementation of load-locked/
741 store-conditional (LLSC). On machines which do not have hardware
742 LLSC, this should be more efficient than the other alternative of
743 disabling interrupts around the atomic sequence.
745 source "drivers/sh/Kconfig"
751 config ZERO_PAGE_OFFSET
753 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
754 SH_7751_SOLUTION_ENGINE
755 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
756 default "0x00002000" if PAGE_SIZE_8KB
759 This sets the default offset of zero page.
761 config BOOT_LINK_OFFSET
763 default "0x00210000" if SH_SHMIN
764 default "0x00400000" if SH_CAYMAN
765 default "0x00810000" if SH_7780_SOLUTION_ENGINE
766 default "0x009e0000" if SH_TITAN
767 default "0x01800000" if SH_SDK7780
768 default "0x02000000" if SH_EDOSK7760
771 This option allows you to set the link address offset of the zImage.
772 This can be useful if you are on a board which has a small amount of
777 default "0x00001000" if PAGE_SIZE_4KB
778 default "0x00002000" if PAGE_SIZE_8KB
779 default "0x00004000" if PAGE_SIZE_16KB
780 default "0x00010000" if PAGE_SIZE_64KB
783 config ROMIMAGE_MMCIF
784 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
785 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
787 Say Y here to include experimental MMCIF loading code in
788 romImage. With this enabled it is possible to write the romImage
789 kernel image to an MMC card and boot the kernel straight from
790 the reset vector. At reset the processor Mask ROM will load the
791 first part of the romImage which in turn loads the rest the kernel
792 image to RAM using the MMCIF hardware block.
795 prompt "Kernel command line"
797 default CMDLINE_OVERWRITE
799 Setting this option allows the kernel command line arguments
802 config CMDLINE_OVERWRITE
803 bool "Overwrite bootloader kernel arguments"
805 Given string will overwrite any arguments passed in by
808 config CMDLINE_EXTEND
809 bool "Extend bootloader kernel arguments"
811 Given string will be concatenated with arguments passed in
817 string "Kernel command line arguments string"
818 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
819 default "console=ttySC1,115200"
826 tristate "SuperHyway Bus support"
827 depends on CPU_SUBTYPE_SH4_202
830 bool "Maple Bus support"
831 depends on SH_DREAMCAST
833 The Maple Bus is SEGA's serial communication bus for peripherals
834 on the Dreamcast. Without this bus support you won't be able to
835 get your Dreamcast keyboard etc to work, so most users
836 probably want to say 'Y' here, unless you are only using the
837 Dreamcast with a serial line terminal or a remote network
842 depends on SYS_SUPPORTS_PCI
845 Find out whether you have a PCI motherboard. PCI is the name of a
846 bus system, i.e. the way the CPU talks to the other stuff inside
847 your box. If you have PCI, say Y, otherwise N.
852 source "drivers/pci/pcie/Kconfig"
854 source "drivers/pci/Kconfig"
856 source "drivers/pcmcia/Kconfig"
858 source "drivers/pci/hotplug/Kconfig"
862 menu "Executable file formats"
864 source "fs/Kconfig.binfmt"
868 menu "Power management options (EXPERIMENTAL)"
869 depends on EXPERIMENTAL
871 source "kernel/power/Kconfig"
873 source "drivers/cpuidle/Kconfig"
879 source "drivers/Kconfig"
883 source "arch/sh/Kconfig.debug"
885 source "security/Kconfig"
887 source "crypto/Kconfig"
889 menuconfig VIRTUALIZATION
890 bool "Virtualization"
893 Say Y here to get to see options for using your Linux host to run other
894 operating systems inside virtual machines (guests).
895 This option alone does not add any kernel code.
897 If you say N, all options in this submenu will be skipped and disabled.
901 source drivers/virtio/Kconfig
903 endif # VIRTUALIZATION