mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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4588214526
At the moment we wrap GENERIC_TIME around our existing timer API. As boards start providing their own clocksources, they're able to select GENERIC_TIME accordingly and optimize out most of the timer API. Once the current timers have been reworked as proper clocksource drivers, the rest of the place holders for the timer API can go away and we can flip on GENERIC_TIME unconditionally. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
634 lines
16 KiB
Text
634 lines
16 KiB
Text
#
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# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/kconfig-language.txt.
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#
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mainmenu "Linux/SuperH Kernel Configuration"
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config SUPERH
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bool
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default y
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select EMBEDDED
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help
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The SuperH is a RISC processor targeted for use in embedded systems
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and consumer electronics; it was also used in the Sega Dreamcast
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gaming console. The SuperH port has a home page at
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<http://www.linux-sh.org/>.
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config RWSEM_GENERIC_SPINLOCK
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bool
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default y
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config RWSEM_XCHGADD_ALGORITHM
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bool
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config GENERIC_FIND_NEXT_BIT
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bool
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default y
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config GENERIC_HWEIGHT
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bool
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default y
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config GENERIC_HARDIRQS
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bool
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default y
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config GENERIC_IRQ_PROBE
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bool
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default y
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config GENERIC_CALIBRATE_DELAY
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bool
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default y
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config GENERIC_IOMAP
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bool
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config GENERIC_TIME
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def_bool n
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config ARCH_MAY_HAVE_PC_FDC
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bool
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source "init/Kconfig"
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menu "System type"
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config SOLUTION_ENGINE
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bool
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choice
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prompt "SuperH system type"
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default SH_UNKNOWN
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config SH_SOLUTION_ENGINE
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bool "SolutionEngine"
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select SOLUTION_ENGINE
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help
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Select SolutionEngine if configuring for a Hitachi SH7709
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or SH7750 evaluation board.
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config SH_7751_SOLUTION_ENGINE
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bool "SolutionEngine7751"
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select SOLUTION_ENGINE
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select CPU_SUBTYPE_SH7751
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help
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Select 7751 SolutionEngine if configuring for a Hitachi SH7751
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evaluation board.
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config SH_7300_SOLUTION_ENGINE
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bool "SolutionEngine7300"
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select SOLUTION_ENGINE
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select CPU_SUBTYPE_SH7300
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help
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Select 7300 SolutionEngine if configuring for a Hitachi
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SH7300(SH-Mobile V) evaluation board.
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config SH_7343_SOLUTION_ENGINE
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bool "SolutionEngine7343"
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select SOLUTION_ENGINE
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select CPU_SUBTYPE_SH7343
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help
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Select 7343 SolutionEngine if configuring for a Hitachi
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SH7343 (SH-Mobile 3AS) evaluation board.
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config SH_73180_SOLUTION_ENGINE
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bool "SolutionEngine73180"
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select SOLUTION_ENGINE
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select CPU_SUBTYPE_SH73180
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help
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Select 73180 SolutionEngine if configuring for a Hitachi
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SH73180(SH-Mobile 3) evaluation board.
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config SH_7751_SYSTEMH
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bool "SystemH7751R"
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select CPU_SUBTYPE_SH7751R
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help
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Select SystemH if you are configuring for a Renesas SystemH
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7751R evaluation board.
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config SH_HP6XX
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bool "HP6XX"
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help
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Select HP6XX if configuring for a HP jornada HP6xx.
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More information (hardware only) at
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<http://www.hp.com/jornada/>.
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config SH_EC3104
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bool "EC3104"
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help
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Select EC3104 if configuring for a system with an Eclipse
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International EC3104 chip, e.g. the Harris AD2000.
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config SH_SATURN
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bool "Saturn"
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select CPU_SUBTYPE_SH7604
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help
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Select Saturn if configuring for a SEGA Saturn.
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config SH_DREAMCAST
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bool "Dreamcast"
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select CPU_SUBTYPE_SH7091
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help
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Select Dreamcast if configuring for a SEGA Dreamcast.
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More information at
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<http://www.m17n.org/linux-sh/dreamcast/>. There is a
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Dreamcast project is at <http://linuxdc.sourceforge.net/>.
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config SH_BIGSUR
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bool "BigSur"
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config SH_MPC1211
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bool "Interface MPC1211"
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help
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CTP/PCI-SH02 is a CPU module computer that is produced
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by Interface Corporation.
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More information at <http://www.interface.co.jp>
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config SH_SH03
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bool "Interface CTP/PCI-SH03"
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help
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CTP/PCI-SH03 is a CPU module computer that is produced
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by Interface Corporation.
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More information at <http://www.interface.co.jp>
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config SH_SECUREEDGE5410
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bool "SecureEdge5410"
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select CPU_SUBTYPE_SH7751R
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help
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Select SecureEdge5410 if configuring for a SnapGear SH board.
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This includes both the OEM SecureEdge products as well as the
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SME product line.
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config SH_HS7751RVOIP
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bool "HS7751RVOIP"
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select CPU_SUBTYPE_SH7751R
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help
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Select HS7751RVOIP if configuring for a Renesas Technology
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Sales VoIP board.
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config SH_7710VOIPGW
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bool "SH7710-VOIP-GW"
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select CPU_SUBTYPE_SH7710
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help
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Select this option to build a kernel for the SH7710 based
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VOIP GW.
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config SH_RTS7751R2D
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bool "RTS7751R2D"
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select CPU_SUBTYPE_SH7751R
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help
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Select RTS7751R2D if configuring for a Renesas Technology
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Sales SH-Graphics board.
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config SH_R7780RP
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bool "R7780RP-1"
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select CPU_SUBTYPE_SH7780
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help
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Select R7780RP-1 if configuring for a Renesas Solutions
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HIGHLANDER board.
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config SH_EDOSK7705
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bool "EDOSK7705"
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select CPU_SUBTYPE_SH7705
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config SH_SH4202_MICRODEV
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bool "SH4-202 MicroDev"
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select CPU_SUBTYPE_SH4_202
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help
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Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
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with an SH4-202 CPU.
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config SH_LANDISK
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bool "LANDISK"
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select CPU_SUBTYPE_SH7751R
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help
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I-O DATA DEVICE, INC. "LANDISK Series" support.
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config SH_TITAN
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bool "TITAN"
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select CPU_SUBTYPE_SH7751R
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help
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Select Titan if you are configuring for a Nimble Microsystems
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NetEngine NP51R.
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config SH_SHMIN
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bool "SHMIN"
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select CPU_SUBTYPE_SH7706
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help
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Select SHMIN if configureing for the SHMIN board
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config SH_UNKNOWN
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bool "BareCPU"
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help
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"Bare CPU" aka "unknown" means an SH-based system which is not one
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of the specific ones mentioned above, which means you need to enter
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all sorts of stuff like CONFIG_MEMORY_START because the config
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system doesn't already know what it is. You get a machine vector
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without any platform-specific code in it, so things like the RTC may
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not work.
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This option is for the early stages of porting to a new machine.
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endchoice
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source "arch/sh/mm/Kconfig"
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config CF_ENABLER
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bool "Compact Flash Enabler support"
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depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
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---help---
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Compact Flash is a small, removable mass storage device introduced
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in 1994 originally as a PCMCIA device. If you say `Y' here, you
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compile in support for Compact Flash devices directly connected to
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a SuperH processor. A Compact Flash FAQ is available at
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<http://www.compactflash.org/faqs/faq.htm>.
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If your board has "Directly Connected" CompactFlash at area 5 or 6,
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you may want to enable this option. Then, you can use CF as
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primary IDE drive (only tested for SanDisk).
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If in doubt, select 'N'.
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choice
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prompt "Compact Flash Connection Area"
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depends on CF_ENABLER
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default CF_AREA6
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config CF_AREA5
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bool "Area5"
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help
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If your board has "Directly Connected" CompactFlash, You should
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select the area where your CF is connected to.
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- "Area5" if CompactFlash is connected to Area 5 (0x14000000)
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- "Area6" if it is connected to Area 6 (0x18000000)
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"Area6" will work for most boards.
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config CF_AREA6
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bool "Area6"
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endchoice
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config CF_BASE_ADDR
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hex
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depends on CF_ENABLER
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default "0xb8000000" if CF_AREA6
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default "0xb4000000" if CF_AREA5
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menu "Processor features"
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config CPU_LITTLE_ENDIAN
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bool "Little Endian"
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help
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Some SuperH machines can be configured for either little or big
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endian byte order. These modes require different kernels. Say Y if
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your machine is little endian, N if it's a big endian machine.
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config SH_FPU
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bool "FPU support"
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depends on !CPU_SH3
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default y
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help
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Selecting this option will enable support for SH processors that
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have FPU units (ie, SH77xx).
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This option must be set in order to enable the FPU.
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config SH_FPU_EMU
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bool "FPU emulation support"
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depends on !SH_FPU && EXPERIMENTAL
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default n
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help
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Selecting this option will enable support for software FPU emulation.
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Most SH-3 users will want to say Y here, whereas most SH-4 users will
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want to say N.
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config SH_DSP
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bool "DSP support"
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default y if SH4AL_DSP || !CPU_SH4
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default n
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help
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Selecting this option will enable support for SH processors that
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have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
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This option must be set in order to enable the DSP.
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config SH_ADC
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bool "ADC support"
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depends on CPU_SH3
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default y
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help
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Selecting this option will allow the Linux kernel to use SH3 on-chip
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ADC module.
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If unsure, say N.
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config SH_STORE_QUEUES
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bool "Support for Store Queues"
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depends on CPU_SH4
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help
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Selecting this option will enable an in-kernel API for manipulating
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the store queues integrated in the SH-4 processors.
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config CPU_HAS_INTEVT
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bool
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config CPU_HAS_PINT_IRQ
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bool
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config CPU_HAS_MASKREG_IRQ
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bool
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config CPU_HAS_INTC2_IRQ
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bool
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config CPU_HAS_SR_RB
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bool "CPU has SR.RB"
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depends on CPU_SH3 || CPU_SH4
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default y
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help
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This will enable the use of SR.RB register bank usage. Processors
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that are lacking this bit must have another method in place for
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accomplishing what is taken care of by the banked registers.
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See <file:Documentation/sh/register-banks.txt> for further
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information on SR.RB and register banking in the kernel in general.
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endmenu
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menu "Timer support"
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depends on !GENERIC_TIME
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config SH_TMU
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bool "TMU timer support"
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default y
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help
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This enables the use of the TMU as the system timer.
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endmenu
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source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
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source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
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source "arch/sh/boards/renesas/r7780rp/Kconfig"
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config SH_PCLK_FREQ
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int "Peripheral clock frequency (in Hz)"
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default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
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default "60000000" if CPU_SUBTYPE_SH7751
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default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
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CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705
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default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
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default "66000000" if CPU_SUBTYPE_SH4_202
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help
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This option is used to specify the peripheral clock frequency.
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This is necessary for determining the reference clock value on
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platforms lacking an RTC.
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menu "CPU Frequency scaling"
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source "drivers/cpufreq/Kconfig"
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config SH_CPU_FREQ
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tristate "SuperH CPU Frequency driver"
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depends on CPU_FREQ
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select CPU_FREQ_TABLE
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help
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This adds the cpufreq driver for SuperH. At present, only
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the SH-4 is supported.
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For details, take a look at <file:Documentation/cpu-freq>.
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If unsure, say N.
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endmenu
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source "arch/sh/drivers/dma/Kconfig"
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source "arch/sh/cchips/Kconfig"
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config HEARTBEAT
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bool "Heartbeat LED"
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depends on SH_MPC1211 || SH_SH03 || \
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SH_BIGSUR || SOLUTION_ENGINE || \
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SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
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help
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Use the power-on LED on your machine as a load meter. The exact
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behavior is platform-dependent, but normally the flash frequency is
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a hyperbolic function of the 5-minute load average.
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endmenu
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config ISA_DMA_API
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bool
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depends on SH_MPC1211
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default y
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menu "Kernel features"
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source kernel/Kconfig.hz
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config KEXEC
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bool "kexec system call (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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help
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kexec is a system call that implements the ability to shutdown your
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current kernel, and to start another kernel. It is like a reboot
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but it is independent of the system firmware. And like a reboot
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you can start any kernel with it, not just Linux.
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The name comes from the similarity to the exec system call.
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It is an ongoing process to be certain the hardware in a machine
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is properly shutdown, so do not be surprised if this code does not
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initially work for you. It may help to enable device hotplugging
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support. As of this writing the exact hardware interface is
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strongly in flux, so no good recommendation can be made.
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config SMP
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bool "Symmetric multi-processing support"
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---help---
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This enables support for systems with more than one CPU. If you have
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a system with only one CPU, like most personal computers, say N. If
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you have a system with more than one CPU, say Y.
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If you say N here, the kernel will run on single and multiprocessor
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machines, but will use only one CPU of a multiprocessor machine. If
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you say Y here, the kernel will run on many, but not all,
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singleprocessor machines. On a singleprocessor machine, the kernel
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will run faster if you say N here.
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People using multiprocessor machines who say Y here should also say
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Y to "Enhanced Real Time Clock Support", below.
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See also the <file:Documentation/smp.txt>,
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<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
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at <http://www.tldp.org/docs.html#howto>.
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If you don't know what to do here, say N.
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config NR_CPUS
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int "Maximum number of CPUs (2-32)"
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range 2 32
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depends on SMP
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default "2"
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help
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This allows you to specify the maximum number of CPUs which this
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kernel will support. The maximum supported value is 32 and the
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minimum value which makes sense is 2.
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This is purely to save memory - each supported CPU adds
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approximately eight kilobytes to the kernel image.
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source "kernel/Kconfig.preempt"
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config CPU_HAS_SR_RB
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bool "CPU has SR.RB"
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depends on CPU_SH3 || CPU_SH4
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default y
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help
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This will enable the use of SR.RB register bank usage. Processors
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that are lacking this bit must have another method in place for
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accomplishing what is taken care of by the banked registers.
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See <file:Documentation/sh/register-banks.txt> for further
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information on SR.RB and register banking in the kernel in general.
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config NODES_SHIFT
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int
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default "1"
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depends on NEED_MULTIPLE_NODES
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endmenu
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menu "Boot options"
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config ZERO_PAGE_OFFSET
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hex "Zero page offset"
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default "0x00004000" if SH_MPC1211 || SH_SH03
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default "0x00001000"
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help
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This sets the default offset of zero page.
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config BOOT_LINK_OFFSET
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hex "Link address offset for booting"
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default "0x00800000"
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help
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This option allows you to set the link address offset of the zImage.
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This can be useful if you are on a board which has a small amount of
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memory.
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config UBC_WAKEUP
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bool "Wakeup UBC on startup"
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help
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Selecting this option will wakeup the User Break Controller (UBC) on
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startup. Although the UBC is left in an awake state when the processor
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comes up, some boot loaders misbehave by putting the UBC to sleep in a
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power saving state, which causes issues with things like ptrace().
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If unsure, say N.
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config CMDLINE_BOOL
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bool "Default bootloader kernel arguments"
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config CMDLINE
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string "Initial kernel command string"
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depends on CMDLINE_BOOL
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default "console=ttySC1,115200"
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endmenu
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menu "Bus options"
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# Even on SuperH devices which don't have an ISA bus,
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# this variable helps the PCMCIA modules handle
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# IRQ requesting properly -- Greg Banks.
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#
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# Though we're generally not interested in it when
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# we're not using PCMCIA, so we make it dependent on
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# PCMCIA outright. -- PFM.
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config ISA
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bool
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default y if PCMCIA
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help
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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.
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|
|
|
config EISA
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|
bool
|
|
---help---
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|
The Extended Industry Standard Architecture (EISA) bus was
|
|
developed as an open alternative to the IBM MicroChannel bus.
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|
|
|
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.
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|
|
|
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
|
|
<file:Documentation/mca.txt> (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
|
|
|
|
config APM
|
|
bool "Advanced Power Management Emulation"
|
|
depends on PM
|
|
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"
|