# # For a description of the syntax of this configuration file, # see Documentation/kbuild/kconfig-language.txt. # mainmenu "Linux/SuperH Kernel Configuration" config SUPERH def_bool y select EMBEDDED select HAVE_CLK select HAVE_IDE select HAVE_OPROFILE select HAVE_GENERIC_DMA_COHERENT select HAVE_IOREMAP_PROT if MMU select HAVE_ARCH_TRACEHOOK select HAVE_DMA_API_DEBUG help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast gaming console. The SuperH port has a home page at . config SUPERH32 def_bool ARCH = "sh" select HAVE_KPROBES select HAVE_KRETPROBES select HAVE_FUNCTION_TRACER select HAVE_FTRACE_MCOUNT_RECORD select HAVE_DYNAMIC_FTRACE select HAVE_ARCH_KGDB select ARCH_HIBERNATION_POSSIBLE if MMU select RTC_LIB config SUPERH64 def_bool ARCH = "sh64" config ARCH_DEFCONFIG string default "arch/sh/configs/shx3_defconfig" if SUPERH32 default "arch/sh/configs/cayman_defconfig" if SUPERH64 config RWSEM_GENERIC_SPINLOCK def_bool y config RWSEM_XCHGADD_ALGORITHM bool config GENERIC_BUG def_bool y depends on BUG && SUPERH32 config GENERIC_FIND_NEXT_BIT def_bool y config GENERIC_HWEIGHT def_bool y config GENERIC_HARDIRQS def_bool y config GENERIC_HARDIRQS_NO__DO_IRQ def_bool y config GENERIC_IRQ_PROBE def_bool y config GENERIC_GPIO def_bool n config GENERIC_CALIBRATE_DELAY bool config GENERIC_IOMAP bool config GENERIC_TIME def_bool n config GENERIC_CLOCKEVENTS def_bool n config GENERIC_CLOCKEVENTS_BROADCAST bool config GENERIC_LOCKBREAK def_bool y depends on SMP && PREEMPT config SYS_SUPPORTS_PM bool depends on !SMP config ARCH_SUSPEND_POSSIBLE def_bool n config ARCH_HIBERNATION_POSSIBLE def_bool n config SYS_SUPPORTS_APM_EMULATION bool select ARCH_SUSPEND_POSSIBLE config SYS_SUPPORTS_SMP bool config SYS_SUPPORTS_NUMA bool config SYS_SUPPORTS_PCI bool config SYS_SUPPORTS_CMT bool config STACKTRACE_SUPPORT def_bool y config LOCKDEP_SUPPORT def_bool y config HAVE_LATENCYTOP_SUPPORT def_bool y depends on !SMP config ARCH_HAS_ILOG2_U32 def_bool n config ARCH_HAS_ILOG2_U64 def_bool n config ARCH_NO_VIRT_TO_BUS def_bool y config ARCH_HAS_DEFAULT_IDLE def_bool y config IO_TRAPPED bool source "init/Kconfig" source "kernel/Kconfig.freezer" menu "System type" # # Processor families # config CPU_SH2 bool config CPU_SH2A bool select CPU_SH2 config CPU_SH3 bool select CPU_HAS_INTEVT select CPU_HAS_SR_RB config CPU_SH4 bool select CPU_HAS_INTEVT select CPU_HAS_SR_RB select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2 select CPU_HAS_FPU if !CPU_SH4AL_DSP config CPU_SH4A bool select CPU_SH4 config CPU_SH4AL_DSP bool select CPU_SH4A select CPU_HAS_DSP config CPU_SH5 bool select CPU_HAS_FPU config CPU_SHX2 bool config CPU_SHX3 bool config ARCH_SHMOBILE bool select ARCH_SUSPEND_POSSIBLE if SUPERH32 choice prompt "Processor sub-type selection" # # Processor subtypes # # SH-2 Processor Support config CPU_SUBTYPE_SH7619 bool "Support SH7619 processor" select CPU_SH2 select SYS_SUPPORTS_CMT # SH-2A Processor Support config CPU_SUBTYPE_SH7201 bool "Support SH7201 processor" select CPU_SH2A select CPU_HAS_FPU config CPU_SUBTYPE_SH7203 bool "Support SH7203 processor" select CPU_SH2A select CPU_HAS_FPU select SYS_SUPPORTS_CMT config CPU_SUBTYPE_SH7206 bool "Support SH7206 processor" select CPU_SH2A select SYS_SUPPORTS_CMT config CPU_SUBTYPE_SH7263 bool "Support SH7263 processor" select CPU_SH2A select CPU_HAS_FPU select SYS_SUPPORTS_CMT config CPU_SUBTYPE_MXG bool "Support MX-G processor" select CPU_SH2A help Select MX-G if running on an R8A03022BG part. # SH-3 Processor Support config CPU_SUBTYPE_SH7705 bool "Support SH7705 processor" select CPU_SH3 config CPU_SUBTYPE_SH7706 bool "Support SH7706 processor" select CPU_SH3 help Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. config CPU_SUBTYPE_SH7707 bool "Support SH7707 processor" select CPU_SH3 help Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. config CPU_SUBTYPE_SH7708 bool "Support SH7708 processor" select CPU_SH3 help Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or if you have a 100 Mhz SH-3 HD6417708R CPU. config CPU_SUBTYPE_SH7709 bool "Support SH7709 processor" select CPU_SH3 help Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. config CPU_SUBTYPE_SH7710 bool "Support SH7710 processor" select CPU_SH3 select CPU_HAS_DSP help Select SH7710 if you have a SH3-DSP SH7710 CPU. config CPU_SUBTYPE_SH7712 bool "Support SH7712 processor" select CPU_SH3 select CPU_HAS_DSP help Select SH7712 if you have a SH3-DSP SH7712 CPU. config CPU_SUBTYPE_SH7720 bool "Support SH7720 processor" select CPU_SH3 select CPU_HAS_DSP help Select SH7720 if you have a SH3-DSP SH7720 CPU. config CPU_SUBTYPE_SH7721 bool "Support SH7721 processor" select CPU_SH3 select CPU_HAS_DSP help Select SH7721 if you have a SH3-DSP SH7721 CPU. # SH-4 Processor Support config CPU_SUBTYPE_SH7750 bool "Support SH7750 processor" select CPU_SH4 help Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. config CPU_SUBTYPE_SH7091 bool "Support SH7091 processor" select CPU_SH4 help Select SH7091 if you have an SH-4 based Sega device (such as the Dreamcast, Naomi, and Naomi 2). config CPU_SUBTYPE_SH7750R bool "Support SH7750R processor" select CPU_SH4 config CPU_SUBTYPE_SH7750S bool "Support SH7750S processor" select CPU_SH4 config CPU_SUBTYPE_SH7751 bool "Support SH7751 processor" select CPU_SH4 help Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, or if you have a HD6417751R CPU. config CPU_SUBTYPE_SH7751R bool "Support SH7751R processor" select CPU_SH4 config CPU_SUBTYPE_SH7760 bool "Support SH7760 processor" select CPU_SH4 config CPU_SUBTYPE_SH4_202 bool "Support SH4-202 processor" select CPU_SH4 # SH-4A Processor Support config CPU_SUBTYPE_SH7723 bool "Support SH7723 processor" select CPU_SH4A select CPU_SHX2 select ARCH_SHMOBILE select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_CMT help Select SH7723 if you have an SH-MobileR2 CPU. config CPU_SUBTYPE_SH7724 bool "Support SH7724 processor" select CPU_SH4A select CPU_SHX2 select ARCH_SHMOBILE select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_CMT help Select SH7724 if you have an SH-MobileR2R CPU. config CPU_SUBTYPE_SH7763 bool "Support SH7763 processor" select CPU_SH4A help Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. config CPU_SUBTYPE_SH7770 bool "Support SH7770 processor" select CPU_SH4A config CPU_SUBTYPE_SH7780 bool "Support SH7780 processor" select CPU_SH4A config CPU_SUBTYPE_SH7785 bool "Support SH7785 processor" select CPU_SH4A select CPU_SHX2 select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_NUMA config CPU_SUBTYPE_SH7786 bool "Support SH7786 processor" select CPU_SH4A select CPU_SHX3 select CPU_HAS_PTEAEX select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_NUMA config CPU_SUBTYPE_SHX3 bool "Support SH-X3 processor" select CPU_SH4A select CPU_SHX3 select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_NUMA select SYS_SUPPORTS_SMP select GENERIC_CLOCKEVENTS_BROADCAST if SMP # SH4AL-DSP Processor Support config CPU_SUBTYPE_SH7343 bool "Support SH7343 processor" select CPU_SH4AL_DSP select ARCH_SHMOBILE select SYS_SUPPORTS_CMT config CPU_SUBTYPE_SH7722 bool "Support SH7722 processor" select CPU_SH4AL_DSP select CPU_SHX2 select ARCH_SHMOBILE select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_NUMA select SYS_SUPPORTS_CMT config CPU_SUBTYPE_SH7366 bool "Support SH7366 processor" select CPU_SH4AL_DSP select CPU_SHX2 select ARCH_SHMOBILE select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_NUMA select SYS_SUPPORTS_CMT endchoice endif if SUPERH64 choice prompt "Processor sub-type selection" # SH-5 Processor Support config CPU_SUBTYPE_SH5_101 bool "Support SH5-101 processor" select CPU_SH5 config CPU_SUBTYPE_SH5_103 bool "Support SH5-103 processor" select CPU_SH5 endchoice endif source "arch/sh/mm/Kconfig" source "arch/sh/Kconfig.cpu" source "arch/sh/boards/Kconfig" menu "Timer and clock configuration" config SH_TMU bool "TMU timer support" depends on CPU_SH3 || CPU_SH4 default y select GENERIC_TIME select GENERIC_CLOCKEVENTS help This enables the use of the TMU as the system timer. config SH_CMT bool "CMT timer support" depends on SYS_SUPPORTS_CMT && CPU_SH2 default y help This enables the use of the CMT as the system timer. # # Support for the new-style CMT driver. This will replace SH_CMT # once its other dependencies are merged. # config SH_TIMER_CMT bool "CMT clockevents driver" depends on SYS_SUPPORTS_CMT && !SH_CMT select GENERIC_CLOCKEVENTS select GENERIC_TIME config SH_MTU2 bool "MTU2 timer support" depends on CPU_SH2A && !GENERIC_TIME default y help This enables the use of the MTU2 as the system timer. config SH_TIMER_IRQ int default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \ CPU_SUBTYPE_SH7763 default "86" if CPU_SUBTYPE_SH7619 default "140" if CPU_SUBTYPE_SH7206 default "142" if CPU_SUBTYPE_SH7203 && SH_CMT default "153" if CPU_SUBTYPE_SH7203 && SH_MTU2 default "238" if CPU_SUBTYPE_MXG default "16" config SH_PCLK_FREQ int "Peripheral clock frequency (in Hz)" default "27000000" if CPU_SUBTYPE_SH7343 default "31250000" if CPU_SUBTYPE_SH7619 default "32000000" if CPU_SUBTYPE_SH7722 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \ CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \ CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG || \ CPU_SUBTYPE_SH7786 default "41666666" if CPU_SUBTYPE_SH7724 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R default "66000000" if CPU_SUBTYPE_SH4_202 default "50000000" help This option is used to specify the peripheral clock frequency. This is necessary for determining the reference clock value on platforms lacking an RTC. config SH_CLK_MD int "CPU Mode Pin Setting" depends on CPU_SH2 default 6 if CPU_SUBTYPE_SH7206 default 5 if CPU_SUBTYPE_SH7619 default 0 help MD2 - MD0 pin setting. source "kernel/time/Kconfig" endmenu menu "CPU Frequency scaling" source "drivers/cpufreq/Kconfig" config SH_CPU_FREQ tristate "SuperH CPU Frequency driver" depends on CPU_FREQ select CPU_FREQ_TABLE help This adds the cpufreq driver for SuperH. Any CPU that supports clock rate rounding through the clock framework can use this driver. While it will make the kernel slightly larger, this is harmless for CPUs that don't support rate rounding. The driver will also generate a notice in the boot log before disabling itself if the CPU in question is not capable of rate rounding. For details, take a look at . If unsure, say N. endmenu source "arch/sh/drivers/Kconfig" endmenu menu "Kernel features" source kernel/Kconfig.hz config KEXEC bool "kexec system call (EXPERIMENTAL)" depends on SUPERH32 && EXPERIMENTAL && MMU help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux. The name comes from the similarity to the exec system call. It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. It may help to enable device hotplugging support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made. config CRASH_DUMP bool "kernel crash dumps (EXPERIMENTAL)" depends on SUPERH32 && EXPERIMENTAL help Generate crash dump after being started by kexec. This should be normally only set in special crash dump kernels which are loaded in the main kernel with kexec-tools into a specially reserved region and then later executed after a crash by kdump/kexec. The crash dump kernel must be compiled to a memory address not used by the main kernel using MEMORY_START. For more details see Documentation/kdump/kdump.txt config KEXEC_JUMP bool "kexec jump (EXPERIMENTAL)" depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL help Jump between original kernel and kexeced kernel and invoke code via KEXEC config SECCOMP bool "Enable seccomp to safely compute untrusted bytecode" depends on PROC_FS help This kernel feature is useful for number crunching applications that may need to compute untrusted bytecode during their execution. By using pipes or other transports made available to the process as file descriptors supporting the read/write syscalls, it's possible to isolate those applications in their own address space using seccomp. Once seccomp is enabled via prctl, it cannot be disabled and the task is only allowed to execute a few safe syscalls defined by each seccomp mode. If unsure, say N. config SMP bool "Symmetric multi-processing support" depends on SYS_SUPPORTS_SMP select USE_GENERIC_SMP_HELPERS ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If you have a system with more than one CPU, say Y. If you say N here, the kernel will run on single and multiprocessor machines, but will use only one CPU of a multiprocessor machine. If you say Y here, the kernel will run on many, but not all, singleprocessor machines. On a singleprocessor machine, the kernel will run faster if you say N here. People using multiprocessor machines who say Y here should also say Y to "Enhanced Real Time Clock Support", below. See also and the SMP-HOWTO available at . If you don't know what to do here, say N. config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 depends on SMP default "4" if CPU_SHX3 default "2" help This allows you to specify the maximum number of CPUs which this kernel will support. The maximum supported value is 32 and the minimum value which makes sense is 2. This is purely to save memory - each supported CPU adds approximately eight kilobytes to the kernel image. source "kernel/Kconfig.preempt" config GUSA def_bool y depends on !SMP && SUPERH32 help This enables support for gUSA (general UserSpace Atomicity). This is the default implementation for both UP and non-ll/sc CPUs, and is used by the libc, amongst others. For additional information, design information can be found in . This should only be disabled for special cases where alternate atomicity implementations exist. config GUSA_RB bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) help Enabling this option will allow the kernel to implement some atomic operations using a software implementation of load-locked/ store-conditional (LLSC). On machines which do not have hardware LLSC, this should be more efficient than the other alternative of disabling interrupts around the atomic sequence. endmenu menu "Boot options" config ZERO_PAGE_OFFSET hex "Zero page offset" default "0x00004000" if SH_SH03 default "0x00010000" if PAGE_SIZE_64KB default "0x00002000" if PAGE_SIZE_8KB default "0x00001000" help This sets the default offset of zero page. config BOOT_LINK_OFFSET hex "Link address offset for booting" default "0x00800000" help This option allows you to set the link address offset of the zImage. This can be useful if you are on a board which has a small amount of memory. config UBC_WAKEUP bool "Wakeup UBC on startup" depends on CPU_SH4 && !CPU_SH4A help Selecting this option will wakeup the User Break Controller (UBC) on startup. Although the UBC is left in an awake state when the processor comes up, some boot loaders misbehave by putting the UBC to sleep in a power saving state, which causes issues with things like ptrace(). If unsure, say N. config CMDLINE_BOOL bool "Default bootloader kernel arguments" config CMDLINE string "Initial kernel command string" depends on CMDLINE_BOOL default "console=ttySC1,115200" endmenu menu "Bus options" config SUPERHYWAY tristate "SuperHyway Bus support" depends on CPU_SUBTYPE_SH4_202 config MAPLE bool "Maple Bus support" depends on SH_DREAMCAST help The Maple Bus is SEGA's serial communication bus for peripherals on the Dreamcast. Without this bus support you won't be able to get your Dreamcast keyboard etc to work, so most users probably want to say 'Y' here, unless you are only using the Dreamcast with a serial line terminal or a remote network connection. source "arch/sh/drivers/pci/Kconfig" source "drivers/pci/pcie/Kconfig" source "drivers/pci/Kconfig" source "drivers/pcmcia/Kconfig" source "drivers/pci/hotplug/Kconfig" endmenu menu "Executable file formats" source "fs/Kconfig.binfmt" endmenu menu "Power management options (EXPERIMENTAL)" depends on EXPERIMENTAL source "kernel/power/Kconfig" source "drivers/cpuidle/Kconfig" endmenu source "net/Kconfig" source "drivers/Kconfig" source "fs/Kconfig" source "arch/sh/Kconfig.debug" source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig"