# # For a description of the syntax of this configuration file, # see Documentation/kbuild/kconfig-language.txt. # mainmenu "Linux/SuperH Kernel Configuration" config SUPERH bool default y select EMBEDDED 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 RWSEM_GENERIC_SPINLOCK bool default y config RWSEM_XCHGADD_ALGORITHM bool config GENERIC_BUG def_bool y depends on BUG config GENERIC_FIND_NEXT_BIT bool default y config GENERIC_HWEIGHT bool default y config GENERIC_HARDIRQS bool default y config GENERIC_IRQ_PROBE bool default y config GENERIC_CALIBRATE_DELAY bool default y config GENERIC_IOMAP bool config GENERIC_TIME def_bool n config SYS_SUPPORTS_APM_EMULATION bool config ARCH_MAY_HAVE_PC_FDC bool config STACKTRACE_SUPPORT bool default y config LOCKDEP_SUPPORT bool default y config ARCH_HAS_ILOG2_U32 bool default n config ARCH_HAS_ILOG2_U64 bool default n source "init/Kconfig" menu "System type" config SOLUTION_ENGINE bool choice prompt "SuperH system type" default SH_UNKNOWN config SH_SOLUTION_ENGINE bool "SolutionEngine" select SOLUTION_ENGINE help Select SolutionEngine if configuring for a Hitachi SH7709 or SH7750 evaluation board. config SH_7751_SOLUTION_ENGINE bool "SolutionEngine7751" select SOLUTION_ENGINE select CPU_SUBTYPE_SH7751 help Select 7751 SolutionEngine if configuring for a Hitachi SH7751 evaluation board. config SH_7300_SOLUTION_ENGINE bool "SolutionEngine7300" select SOLUTION_ENGINE select CPU_SUBTYPE_SH7300 help Select 7300 SolutionEngine if configuring for a Hitachi SH7300(SH-Mobile V) evaluation board. config SH_7343_SOLUTION_ENGINE bool "SolutionEngine7343" select SOLUTION_ENGINE select CPU_SUBTYPE_SH7343 help Select 7343 SolutionEngine if configuring for a Hitachi SH7343 (SH-Mobile 3AS) evaluation board. config SH_73180_SOLUTION_ENGINE bool "SolutionEngine73180" select SOLUTION_ENGINE select CPU_SUBTYPE_SH73180 help Select 73180 SolutionEngine if configuring for a Hitachi SH73180(SH-Mobile 3) evaluation board. config SH_7751_SYSTEMH bool "SystemH7751R" select CPU_SUBTYPE_SH7751R help Select SystemH if you are configuring for a Renesas SystemH 7751R evaluation board. config SH_HP6XX bool "HP6XX" select SYS_SUPPORTS_APM_EMULATION help Select HP6XX if configuring for a HP jornada HP6xx. More information (hardware only) at . config SH_SATURN bool "Saturn" select CPU_SUBTYPE_SH7604 help Select Saturn if configuring for a SEGA Saturn. config SH_DREAMCAST bool "Dreamcast" select CPU_SUBTYPE_SH7091 help Select Dreamcast if configuring for a SEGA Dreamcast. More information at . There is a Dreamcast project is at . config SH_MPC1211 bool "Interface MPC1211" help CTP/PCI-SH02 is a CPU module computer that is produced by Interface Corporation. More information at config SH_SH03 bool "Interface CTP/PCI-SH03" help CTP/PCI-SH03 is a CPU module computer that is produced by Interface Corporation. More information at config SH_SECUREEDGE5410 bool "SecureEdge5410" select CPU_SUBTYPE_SH7751R help Select SecureEdge5410 if configuring for a SnapGear SH board. This includes both the OEM SecureEdge products as well as the SME product line. config SH_HS7751RVOIP bool "HS7751RVOIP" select CPU_SUBTYPE_SH7751R help Select HS7751RVOIP if configuring for a Renesas Technology Sales VoIP board. config SH_7710VOIPGW bool "SH7710-VOIP-GW" select CPU_SUBTYPE_SH7710 help Select this option to build a kernel for the SH7710 based VOIP GW. config SH_RTS7751R2D bool "RTS7751R2D" select CPU_SUBTYPE_SH7751R help Select RTS7751R2D if configuring for a Renesas Technology Sales SH-Graphics board. config SH_HIGHLANDER bool "Highlander" config SH_EDOSK7705 bool "EDOSK7705" select CPU_SUBTYPE_SH7705 config SH_SH4202_MICRODEV bool "SH4-202 MicroDev" select CPU_SUBTYPE_SH4_202 help Select SH4-202 MicroDev if configuring for a SuperH MicroDev board with an SH4-202 CPU. config SH_LANDISK bool "LANDISK" select CPU_SUBTYPE_SH7751R help I-O DATA DEVICE, INC. "LANDISK Series" support. config SH_TITAN bool "TITAN" select CPU_SUBTYPE_SH7751R help Select Titan if you are configuring for a Nimble Microsystems NetEngine NP51R. config SH_SHMIN bool "SHMIN" select CPU_SUBTYPE_SH7706 help Select SHMIN if configuring for the SHMIN board. config SH_7206_SOLUTION_ENGINE bool "SolutionEngine7206" select CPU_SUBTYPE_SH7206 help Select 7206 SolutionEngine if configuring for a Hitachi SH7206 evaluation board. config SH_7619_SOLUTION_ENGINE bool "SolutionEngine7619" select CPU_SUBTYPE_SH7619 help Select 7619 SolutionEngine if configuring for a Hitachi SH7619 evaluation board. config SH_UNKNOWN bool "BareCPU" help "Bare CPU" aka "unknown" means an SH-based system which is not one of the specific ones mentioned above, which means you need to enter all sorts of stuff like CONFIG_MEMORY_START because the config system doesn't already know what it is. You get a machine vector without any platform-specific code in it, so things like the RTC may not work. This option is for the early stages of porting to a new machine. endchoice source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" source "arch/sh/boards/renesas/rts7751r2d/Kconfig" source "arch/sh/boards/renesas/r7780rp/Kconfig" source "arch/sh/mm/Kconfig" config CF_ENABLER bool "Compact Flash Enabler support" depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03 ---help--- Compact Flash is a small, removable mass storage device introduced in 1994 originally as a PCMCIA device. If you say `Y' here, you compile in support for Compact Flash devices directly connected to a SuperH processor. A Compact Flash FAQ is available at . If your board has "Directly Connected" CompactFlash at area 5 or 6, you may want to enable this option. Then, you can use CF as primary IDE drive (only tested for SanDisk). If in doubt, select 'N'. choice prompt "Compact Flash Connection Area" depends on CF_ENABLER default CF_AREA6 config CF_AREA5 bool "Area5" help If your board has "Directly Connected" CompactFlash, You should select the area where your CF is connected to. - "Area5" if CompactFlash is connected to Area 5 (0x14000000) - "Area6" if it is connected to Area 6 (0x18000000) "Area6" will work for most boards. config CF_AREA6 bool "Area6" endchoice config CF_BASE_ADDR hex depends on CF_ENABLER default "0xb8000000" if CF_AREA6 default "0xb4000000" if CF_AREA5 menu "Processor features" choice prompt "Endianess selection" default CPU_LITTLE_ENDIAN help Some SuperH machines can be configured for either little or big endian byte order. These modes require different kernels. config CPU_LITTLE_ENDIAN bool "Little Endian" config CPU_BIG_ENDIAN bool "Big Endian" endchoice config SH_FPU bool "FPU support" depends on !CPU_SH3 default y help Selecting this option will enable support for SH processors that have FPU units (ie, SH77xx). This option must be set in order to enable the FPU. config SH_FPU_EMU bool "FPU emulation support" depends on !SH_FPU && EXPERIMENTAL default n help Selecting this option will enable support for software FPU emulation. Most SH-3 users will want to say Y here, whereas most SH-4 users will want to say N. config SH_DSP bool "DSP support" default y if SH4AL_DSP || !CPU_SH4 default n help Selecting this option will enable support for SH processors that have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). This option must be set in order to enable the DSP. config SH_ADC bool "ADC support" depends on CPU_SH3 default y help Selecting this option will allow the Linux kernel to use SH3 on-chip ADC module. If unsure, say N. config SH_STORE_QUEUES bool "Support for Store Queues" depends on CPU_SH4 help Selecting this option will enable an in-kernel API for manipulating the store queues integrated in the SH-4 processors. config SPECULATIVE_EXECUTION bool "Speculative subroutine return" depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL help This enables support for a speculative instruction fetch for subroutine return. There are various pitfalls associated with this, as outlined in the SH7780 hardware manual. If unsure, say N. config CPU_HAS_INTEVT bool config CPU_HAS_PINT_IRQ bool config CPU_HAS_MASKREG_IRQ bool config CPU_HAS_INTC2_IRQ bool config CPU_HAS_IPR_IRQ bool config CPU_HAS_SR_RB bool "CPU has SR.RB" depends on CPU_SH3 || CPU_SH4 default y help This will enable the use of SR.RB register bank usage. Processors that are lacking this bit must have another method in place for accomplishing what is taken care of by the banked registers. See for further information on SR.RB and register banking in the kernel in general. config CPU_HAS_PTEA bool endmenu menu "Timer and clock configuration" if !GENERIC_TIME config SH_TMU bool "TMU timer support" depends on CPU_SH3 || CPU_SH4 default y help This enables the use of the TMU as the system timer. config SH_CMT bool "CMT timer support" depends on CPU_SH2 default y help This enables the use of the CMT as the system timer. config SH_MTU2 bool "MTU2 timer support" depends on CPU_SH2A default n help This enables the use of the MTU2 as the system timer. endif config SH_TIMER_IRQ int default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 default "86" if CPU_SUBTYPE_SH7619 default "140" if CPU_SUBTYPE_SH7206 default "16" config NO_IDLE_HZ bool "Dynamic tick timer" help Select this option if you want to disable continuous timer ticks and have them programmed to occur as required. This option saves power as the system can remain in idle state for longer. By default dynamic tick is disabled during the boot, and can be manually enabled with: echo 1 > /sys/devices/system/timer/timer0/dyn_tick Alternatively, if you want dynamic tick automatically enabled during boot, pass "dyntick=enable" via the kernel command string. Please note that dynamic tick may affect the accuracy of timekeeping on some platforms depending on the implementation. config SH_PCLK_FREQ int "Peripheral clock frequency (in Hz)" default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343 default "31250000" if CPU_SUBTYPE_SH7619 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ CPU_SUBTYPE_SH7206 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 || \ CPU_SUBTYPE_SH7785 default "60000000" if CPU_SUBTYPE_SH7751 default "66000000" if CPU_SUBTYPE_SH4_202 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" default 0 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206 help MD2 - MD0 pin setting. 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. At present, only the SH-4 is supported. For details, take a look at . If unsure, say N. endmenu source "arch/sh/drivers/Kconfig" endmenu config ISA_DMA_API bool depends on SH_MPC1211 default y menu "Kernel features" source kernel/Kconfig.hz config KEXEC bool "kexec system call (EXPERIMENTAL)" depends on EXPERIMENTAL 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 SMP bool "Symmetric multi-processing support" ---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 the , 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 "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 NODES_SHIFT int default "1" depends on NEED_MULTIPLE_NODES endmenu menu "Boot options" config ZERO_PAGE_OFFSET hex "Zero page offset" default "0x00004000" if SH_MPC1211 || 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" 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" # Even on SuperH devices which don't have an ISA bus, # this variable helps the PCMCIA modules handle # IRQ requesting properly -- Greg Banks. # # Though we're generally not interested in it when # we're not using PCMCIA, so we make it dependent on # PCMCIA outright. -- PFM. config ISA bool default y if PCMCIA help Find out whether you have ISA slots on your motherboard. ISA is the name of a bus system, i.e. the way the CPU talks to the other stuff inside your box. Other bus systems are PCI, EISA, MicroChannel (MCA) or VESA. ISA is an older system, now being displaced by PCI; newer boards don't support it. If you have ISA, say Y, otherwise N. config EISA bool ---help--- The Extended Industry Standard Architecture (EISA) bus was developed as an open alternative to the IBM MicroChannel bus. The EISA bus provided some of the features of the IBM MicroChannel bus while maintaining backward compatibility with cards made for the older ISA bus. The EISA bus saw limited use between 1988 and 1995 when it was made obsolete by the PCI bus. Say Y here if you are building a kernel for an EISA-based machine. Otherwise, say N. config MCA bool help MicroChannel Architecture is found in some IBM PS/2 machines and laptops. It is a bus system similar to PCI or ISA. See (and especially the web page given there) before attempting to build an MCA bus kernel. config SBUS bool config SUPERHYWAY tristate "SuperHyway Bus support" depends on CPU_SUBTYPE_SH4_202 source "arch/sh/drivers/pci/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 endmenu source "net/Kconfig" source "drivers/Kconfig" source "fs/Kconfig" source "arch/sh/oprofile/Kconfig" source "arch/sh/Kconfig.debug" source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig"