5 select HAVE_IDE if HAS_IOPORT
7 select HAVE_MEMBLOCK_NODE_MAP
8 select ARCH_DISCARD_MEMBLOCK
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_ARCH_TRACEHOOK
12 select HAVE_DMA_API_DEBUG
15 select HAVE_PERF_EVENTS
16 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
17 select PERF_USE_VMALLOC
18 select HAVE_KERNEL_GZIP
19 select HAVE_KERNEL_BZIP2
20 select HAVE_KERNEL_LZMA
22 select HAVE_KERNEL_LZO
23 select HAVE_SYSCALL_TRACEPOINTS
24 select HAVE_REGS_AND_STACK_ACCESS_API
25 select HAVE_GENERIC_HARDIRQS
26 select MAY_HAVE_SPARSE_IRQ
27 select IRQ_FORCED_THREADING
29 select GENERIC_ATOMIC64
30 select GENERIC_IRQ_SHOW
32 The SuperH is a RISC processor targeted for use in embedded systems
33 and consumer electronics; it was also used in the Sega Dreamcast
34 gaming console. The SuperH port has a home page at
35 <http://www.linux-sh.org/>.
40 select HAVE_KRETPROBES
41 select HAVE_IOREMAP_PROT if MMU && !X2TLB
42 select HAVE_FUNCTION_TRACER
43 select HAVE_FTRACE_MCOUNT_RECORD
44 select HAVE_DYNAMIC_FTRACE
45 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
46 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
47 select HAVE_FUNCTION_GRAPH_TRACER
49 select HAVE_HW_BREAKPOINT
50 select HAVE_MIXED_BREAKPOINTS_REGS
52 select ARCH_HIBERNATION_POSSIBLE if MMU
56 def_bool ARCH = "sh64"
60 default "arch/sh/configs/shx3_defconfig" if SUPERH32
61 default "arch/sh/configs/cayman_defconfig" if SUPERH64
63 config RWSEM_GENERIC_SPINLOCK
66 config RWSEM_XCHGADD_ALGORITHM
71 depends on BUG && SUPERH32
77 config GENERIC_HWEIGHT
86 config GENERIC_CALIBRATE_DELAY
89 config GENERIC_CLOCKEVENTS
92 config GENERIC_CLOCKEVENTS_BROADCAST
95 config GENERIC_CMOS_UPDATE
97 depends on SH_SH03 || SH_DREAMCAST
99 config GENERIC_LOCKBREAK
101 depends on SMP && PREEMPT
103 config ARCH_SUSPEND_POSSIBLE
106 config ARCH_HIBERNATION_POSSIBLE
109 config SYS_SUPPORTS_APM_EMULATION
111 select ARCH_SUSPEND_POSSIBLE
113 config SYS_SUPPORTS_HUGETLBFS
116 config SYS_SUPPORTS_SMP
119 config SYS_SUPPORTS_NUMA
122 config SYS_SUPPORTS_PCI
125 config SYS_SUPPORTS_CMT
128 config SYS_SUPPORTS_MTU2
131 config SYS_SUPPORTS_TMU
134 config STACKTRACE_SUPPORT
137 config LOCKDEP_SUPPORT
140 config HAVE_LATENCYTOP_SUPPORT
143 config ARCH_HAS_ILOG2_U32
146 config ARCH_HAS_ILOG2_U64
149 config ARCH_NO_VIRT_TO_BUS
152 config ARCH_HAS_DEFAULT_IDLE
155 config ARCH_HAS_CPU_IDLE_WAIT
160 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN
171 config DMA_NONCOHERENT
172 def_bool !DMA_COHERENT
174 config NEED_DMA_MAP_STATE
175 def_bool DMA_NONCOHERENT
177 config NEED_SG_DMA_LENGTH
180 source "init/Kconfig"
182 source "kernel/Kconfig.freezer"
195 select UNCACHED_MAPPING
199 select CPU_HAS_INTEVT
201 select SYS_SUPPORTS_TMU
205 select CPU_HAS_INTEVT
207 select CPU_HAS_FPU if !CPU_SH4AL_DSP
208 select SYS_SUPPORTS_TMU
209 select SYS_SUPPORTS_HUGETLBFS if MMU
223 select SYS_SUPPORTS_TMU
224 select SYS_SUPPORTS_HUGETLBFS if MMU
232 select SYS_SUPPORTS_SMP
233 select SYS_SUPPORTS_NUMA
237 select ARCH_SUSPEND_POSSIBLE
242 depends on CPU_SH4 || CPU_SH4A
249 prompt "Processor sub-type selection"
255 # SH-2 Processor Support
257 config CPU_SUBTYPE_SH7619
258 bool "Support SH7619 processor"
260 select SYS_SUPPORTS_CMT
262 # SH-2A Processor Support
264 config CPU_SUBTYPE_SH7201
265 bool "Support SH7201 processor"
268 select SYS_SUPPORTS_MTU2
270 config CPU_SUBTYPE_SH7203
271 bool "Support SH7203 processor"
274 select SYS_SUPPORTS_CMT
275 select SYS_SUPPORTS_MTU2
276 select ARCH_WANT_OPTIONAL_GPIOLIB
278 config CPU_SUBTYPE_SH7206
279 bool "Support SH7206 processor"
281 select SYS_SUPPORTS_CMT
282 select SYS_SUPPORTS_MTU2
284 config CPU_SUBTYPE_SH7263
285 bool "Support SH7263 processor"
288 select SYS_SUPPORTS_CMT
289 select SYS_SUPPORTS_MTU2
291 config CPU_SUBTYPE_MXG
292 bool "Support MX-G processor"
294 select SYS_SUPPORTS_MTU2
296 Select MX-G if running on an R8A03022BG part.
298 # SH-3 Processor Support
300 config CPU_SUBTYPE_SH7705
301 bool "Support SH7705 processor"
304 config CPU_SUBTYPE_SH7706
305 bool "Support SH7706 processor"
308 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
310 config CPU_SUBTYPE_SH7707
311 bool "Support SH7707 processor"
314 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
316 config CPU_SUBTYPE_SH7708
317 bool "Support SH7708 processor"
320 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
321 if you have a 100 Mhz SH-3 HD6417708R CPU.
323 config CPU_SUBTYPE_SH7709
324 bool "Support SH7709 processor"
327 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
329 config CPU_SUBTYPE_SH7710
330 bool "Support SH7710 processor"
334 Select SH7710 if you have a SH3-DSP SH7710 CPU.
336 config CPU_SUBTYPE_SH7712
337 bool "Support SH7712 processor"
341 Select SH7712 if you have a SH3-DSP SH7712 CPU.
343 config CPU_SUBTYPE_SH7720
344 bool "Support SH7720 processor"
347 select SYS_SUPPORTS_CMT
348 select ARCH_WANT_OPTIONAL_GPIOLIB
349 select USB_ARCH_HAS_OHCI
350 select USB_OHCI_SH if USB_OHCI_HCD
352 Select SH7720 if you have a SH3-DSP SH7720 CPU.
354 config CPU_SUBTYPE_SH7721
355 bool "Support SH7721 processor"
358 select SYS_SUPPORTS_CMT
359 select USB_ARCH_HAS_OHCI
360 select USB_OHCI_SH if USB_OHCI_HCD
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
415 select ARCH_WANT_OPTIONAL_GPIOLIB
417 Select SH7723 if you have an SH-MobileR2 CPU.
419 config CPU_SUBTYPE_SH7724
420 bool "Support SH7724 processor"
424 select ARCH_SPARSEMEM_ENABLE
425 select SYS_SUPPORTS_CMT
426 select ARCH_WANT_OPTIONAL_GPIOLIB
428 Select SH7724 if you have an SH-MobileR2R CPU.
430 config CPU_SUBTYPE_SH7734
431 bool "Support SH7734 processor"
434 select ARCH_WANT_OPTIONAL_GPIOLIB
435 select USB_ARCH_HAS_OHCI
436 select USB_ARCH_HAS_EHCI
438 Select SH7734 if you have a SH4A SH7734 CPU.
440 config CPU_SUBTYPE_SH7757
441 bool "Support SH7757 processor"
444 select ARCH_WANT_OPTIONAL_GPIOLIB
445 select USB_ARCH_HAS_OHCI
446 select USB_ARCH_HAS_EHCI
448 Select SH7757 if you have a SH4A SH7757 CPU.
450 config CPU_SUBTYPE_SH7763
451 bool "Support SH7763 processor"
453 select USB_ARCH_HAS_OHCI
454 select USB_OHCI_SH if USB_OHCI_HCD
456 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
458 config CPU_SUBTYPE_SH7770
459 bool "Support SH7770 processor"
462 config CPU_SUBTYPE_SH7780
463 bool "Support SH7780 processor"
466 config CPU_SUBTYPE_SH7785
467 bool "Support SH7785 processor"
470 select ARCH_SPARSEMEM_ENABLE
471 select SYS_SUPPORTS_NUMA
472 select ARCH_WANT_OPTIONAL_GPIOLIB
474 config CPU_SUBTYPE_SH7786
475 bool "Support SH7786 processor"
478 select CPU_HAS_PTEAEX
479 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
480 select ARCH_WANT_OPTIONAL_GPIOLIB
481 select USB_ARCH_HAS_OHCI
482 select USB_OHCI_SH if USB_OHCI_HCD
483 select USB_ARCH_HAS_EHCI
484 select USB_EHCI_SH if USB_EHCI_HCD
486 config CPU_SUBTYPE_SHX3
487 bool "Support SH-X3 processor"
490 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
491 select ARCH_REQUIRE_GPIOLIB
493 # SH4AL-DSP Processor Support
495 config CPU_SUBTYPE_SH7343
496 bool "Support SH7343 processor"
499 select SYS_SUPPORTS_CMT
501 config CPU_SUBTYPE_SH7722
502 bool "Support SH7722 processor"
506 select ARCH_SPARSEMEM_ENABLE
507 select SYS_SUPPORTS_NUMA
508 select SYS_SUPPORTS_CMT
509 select ARCH_WANT_OPTIONAL_GPIOLIB
511 config CPU_SUBTYPE_SH7366
512 bool "Support SH7366 processor"
516 select ARCH_SPARSEMEM_ENABLE
517 select SYS_SUPPORTS_NUMA
518 select SYS_SUPPORTS_CMT
527 prompt "Processor sub-type selection"
529 # SH-5 Processor Support
531 config CPU_SUBTYPE_SH5_101
532 bool "Support SH5-101 processor"
535 config CPU_SUBTYPE_SH5_103
536 bool "Support SH5-103 processor"
543 source "arch/sh/mm/Kconfig"
545 source "arch/sh/Kconfig.cpu"
547 source "arch/sh/boards/Kconfig"
549 menu "Timer and clock configuration"
552 bool "TMU timer driver"
553 depends on SYS_SUPPORTS_TMU
556 This enables the build of the TMU timer driver.
559 bool "CMT timer driver"
560 depends on SYS_SUPPORTS_CMT
563 This enables build of the CMT timer driver.
566 bool "MTU2 timer driver"
567 depends on SYS_SUPPORTS_MTU2
570 This enables build of the MTU2 timer driver.
573 int "Peripheral clock frequency (in Hz)"
574 depends on SH_CLK_CPG_LEGACY
575 default "31250000" if CPU_SUBTYPE_SH7619
576 default "33333333" if CPU_SUBTYPE_SH7770 || \
577 CPU_SUBTYPE_SH7760 || \
578 CPU_SUBTYPE_SH7705 || \
579 CPU_SUBTYPE_SH7203 || \
580 CPU_SUBTYPE_SH7206 || \
581 CPU_SUBTYPE_SH7263 || \
583 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
584 default "66000000" if CPU_SUBTYPE_SH4_202
587 This option is used to specify the peripheral clock frequency.
588 This is necessary for determining the reference clock value on
589 platforms lacking an RTC.
594 config SH_CLK_CPG_LEGACY
595 depends on SH_CLK_CPG
596 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
597 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && !CPU_SUBTYPE_SH7734
599 source "kernel/time/Kconfig"
603 menu "CPU Frequency scaling"
605 source "drivers/cpufreq/Kconfig"
608 tristate "SuperH CPU Frequency driver"
610 select CPU_FREQ_TABLE
612 This adds the cpufreq driver for SuperH. Any CPU that supports
613 clock rate rounding through the clock framework can use this
614 driver. While it will make the kernel slightly larger, this is
615 harmless for CPUs that don't support rate rounding. The driver
616 will also generate a notice in the boot log before disabling
617 itself if the CPU in question is not capable of rate rounding.
619 For details, take a look at <file:Documentation/cpu-freq>.
625 source "arch/sh/drivers/Kconfig"
629 menu "Kernel features"
631 source kernel/Kconfig.hz
634 bool "kexec system call (EXPERIMENTAL)"
635 depends on SUPERH32 && EXPERIMENTAL && MMU
637 kexec is a system call that implements the ability to shutdown your
638 current kernel, and to start another kernel. It is like a reboot
639 but it is independent of the system firmware. And like a reboot
640 you can start any kernel with it, not just Linux.
642 The name comes from the similarity to the exec system call.
644 It is an ongoing process to be certain the hardware in a machine
645 is properly shutdown, so do not be surprised if this code does not
646 initially work for you. It may help to enable device hotplugging
647 support. As of this writing the exact hardware interface is
648 strongly in flux, so no good recommendation can be made.
651 bool "kernel crash dumps (EXPERIMENTAL)"
652 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
654 Generate crash dump after being started by kexec.
655 This should be normally only set in special crash dump kernels
656 which are loaded in the main kernel with kexec-tools into
657 a specially reserved region and then later executed after
658 a crash by kdump/kexec. The crash dump kernel must be compiled
659 to a memory address not used by the main kernel using
662 For more details see Documentation/kdump/kdump.txt
665 bool "kexec jump (EXPERIMENTAL)"
666 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
668 Jump between original kernel and kexeced kernel and invoke
671 config PHYSICAL_START
672 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
675 This gives the physical address where the kernel is loaded
676 and is ordinarily the same as MEMORY_START.
678 Different values are primarily used in the case of kexec on panic
679 where the fail safe kernel needs to run at a different address
680 than the panic-ed kernel.
683 bool "Enable seccomp to safely compute untrusted bytecode"
686 This kernel feature is useful for number crunching applications
687 that may need to compute untrusted bytecode during their
688 execution. By using pipes or other transports made available to
689 the process as file descriptors supporting the read/write
690 syscalls, it's possible to isolate those applications in
691 their own address space using seccomp. Once seccomp is
692 enabled via prctl, it cannot be disabled and the task is only
693 allowed to execute a few safe syscalls defined by each seccomp
698 config CC_STACKPROTECTOR
699 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
700 depends on SUPERH32 && EXPERIMENTAL
702 This option turns on the -fstack-protector GCC feature. This
703 feature puts, at the beginning of functions, a canary value on
704 the stack just before the return address, and validates
705 the value just before actually returning. Stack based buffer
706 overflows (that need to overwrite this return address) now also
707 overwrite the canary, which gets detected and the attack is then
708 neutralized via a kernel panic.
710 This feature requires gcc version 4.2 or above.
713 bool "Symmetric multi-processing support"
714 depends on SYS_SUPPORTS_SMP
715 select USE_GENERIC_SMP_HELPERS
717 This enables support for systems with more than one CPU. If you have
718 a system with only one CPU, like most personal computers, say N. If
719 you have a system with more than one CPU, say Y.
721 If you say N here, the kernel will run on single and multiprocessor
722 machines, but will use only one CPU of a multiprocessor machine. If
723 you say Y here, the kernel will run on many, but not all,
724 singleprocessor machines. On a singleprocessor machine, the kernel
725 will run faster if you say N here.
727 People using multiprocessor machines who say Y here should also say
728 Y to "Enhanced Real Time Clock Support", below.
730 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
731 available at <http://www.tldp.org/docs.html#howto>.
733 If you don't know what to do here, say N.
736 int "Maximum number of CPUs (2-32)"
739 default "4" if CPU_SUBTYPE_SHX3
742 This allows you to specify the maximum number of CPUs which this
743 kernel will support. The maximum supported value is 32 and the
744 minimum value which makes sense is 2.
746 This is purely to save memory - each supported CPU adds
747 approximately eight kilobytes to the kernel image.
750 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
751 depends on SMP && HOTPLUG && EXPERIMENTAL
753 Say Y here to experiment with turning CPUs off and on. CPUs
754 can be controlled through /sys/devices/system/cpu.
756 source "kernel/Kconfig.preempt"
760 depends on !SMP && SUPERH32
762 This enables support for gUSA (general UserSpace Atomicity).
763 This is the default implementation for both UP and non-ll/sc
764 CPUs, and is used by the libc, amongst others.
766 For additional information, design information can be found
767 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
769 This should only be disabled for special cases where alternate
770 atomicity implementations exist.
773 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
774 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
776 Enabling this option will allow the kernel to implement some
777 atomic operations using a software implementation of load-locked/
778 store-conditional (LLSC). On machines which do not have hardware
779 LLSC, this should be more efficient than the other alternative of
780 disabling interrupts around the atomic sequence.
782 config HW_PERF_EVENTS
783 bool "Enable hardware performance counter support for perf events"
784 depends on PERF_EVENTS && CPU_HAS_PMU
787 Enable hardware performance counter support for perf events. If
788 disabled, perf events will use software events only.
790 source "drivers/sh/Kconfig"
796 config ZERO_PAGE_OFFSET
798 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
799 SH_7751_SOLUTION_ENGINE
800 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
801 default "0x00002000" if PAGE_SIZE_8KB
804 This sets the default offset of zero page.
806 config BOOT_LINK_OFFSET
808 default "0x00210000" if SH_SHMIN
809 default "0x00400000" if SH_CAYMAN
810 default "0x00810000" if SH_7780_SOLUTION_ENGINE
811 default "0x009e0000" if SH_TITAN
812 default "0x01800000" if SH_SDK7780
813 default "0x02000000" if SH_EDOSK7760
816 This option allows you to set the link address offset of the zImage.
817 This can be useful if you are on a board which has a small amount of
822 default "0x00001000" if PAGE_SIZE_4KB
823 default "0x00002000" if PAGE_SIZE_8KB
824 default "0x00004000" if PAGE_SIZE_16KB
825 default "0x00010000" if PAGE_SIZE_64KB
828 config ROMIMAGE_MMCIF
829 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
830 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
832 Say Y here to include experimental MMCIF loading code in
833 romImage. With this enabled it is possible to write the romImage
834 kernel image to an MMC card and boot the kernel straight from
835 the reset vector. At reset the processor Mask ROM will load the
836 first part of the romImage which in turn loads the rest the kernel
837 image to RAM using the MMCIF hardware block.
840 prompt "Kernel command line"
842 default CMDLINE_OVERWRITE
844 Setting this option allows the kernel command line arguments
847 config CMDLINE_OVERWRITE
848 bool "Overwrite bootloader kernel arguments"
850 Given string will overwrite any arguments passed in by
853 config CMDLINE_EXTEND
854 bool "Extend bootloader kernel arguments"
856 Given string will be concatenated with arguments passed in
862 string "Kernel command line arguments string"
863 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
864 default "console=ttySC1,115200"
871 tristate "SuperHyway Bus support"
872 depends on CPU_SUBTYPE_SH4_202
875 bool "Maple Bus support"
876 depends on SH_DREAMCAST
878 The Maple Bus is SEGA's serial communication bus for peripherals
879 on the Dreamcast. Without this bus support you won't be able to
880 get your Dreamcast keyboard etc to work, so most users
881 probably want to say 'Y' here, unless you are only using the
882 Dreamcast with a serial line terminal or a remote network
887 depends on SYS_SUPPORTS_PCI
889 select GENERIC_PCI_IOMAP
890 select NO_GENERIC_PCI_IOPORT_MAP
892 Find out whether you have a PCI motherboard. PCI is the name of a
893 bus system, i.e. the way the CPU talks to the other stuff inside
894 your box. If you have PCI, say Y, otherwise N.
899 source "drivers/pci/pcie/Kconfig"
901 source "drivers/pci/Kconfig"
903 source "drivers/pcmcia/Kconfig"
905 source "drivers/pci/hotplug/Kconfig"
909 menu "Executable file formats"
911 source "fs/Kconfig.binfmt"
915 menu "Power management options (EXPERIMENTAL)"
916 depends on EXPERIMENTAL
918 source "kernel/power/Kconfig"
920 source "drivers/cpuidle/Kconfig"
926 source "drivers/Kconfig"
930 source "arch/sh/Kconfig.debug"
932 source "security/Kconfig"
934 source "crypto/Kconfig"