linux/arch/m68k/Kconfig
Greg Ungerer 0e152d8050 m68k: reorganize Kconfig options to improve mmu/non-mmu selections
The current mmu and non-mmu Kconfig files can be merged to form
a more general selection of options. The current break up of options
is due to the simple brute force merge from the m68k and m68knommu
arch directories.

Many of the options are not at all specific to having the MMU enabled
or not. They are actually associated with a particular CPU type or
platform type.

Ultimately as we support all processors with the MMU disabled we need
many of these options to be selectable without the MMU option enabled.
And likewise some of the ColdFire processors, which currently are only
supported with the MMU disabled, do have MMU hardware, and will need
to have options selected on CPU type, not MMU disabled.

This patch removes the old mmu and non-mmu Kconfigs and instead breaks
up the configuration into four areas: cpu, machine, bus, devices.

The Kconfig.cpu lists all the options associated with selecting a CPU,
and includes options specific to each CPU type as well.

Kconfig.machine lists all options associated with selecting a machine
type. Almost always the machines selectable is restricted by the chosen
CPU.

Kconfig.bus contains options associated with selecting bus types on the
various machine types. That includes PCI bus, PCMCIA bus, etc.

Kconfig.devices contains options for drivers and driver associated
options.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-10-18 14:22:25 +10:00

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config M68K
bool
default y
select HAVE_IDE
select HAVE_AOUT if MMU
select GENERIC_ATOMIC64 if MMU
select HAVE_GENERIC_HARDIRQS if !MMU
select GENERIC_IRQ_SHOW if !MMU
select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
config RWSEM_GENERIC_SPINLOCK
bool
default y
config RWSEM_XCHGADD_ALGORITHM
bool
config ARCH_HAS_ILOG2_U32
bool
config ARCH_HAS_ILOG2_U64
bool
config GENERIC_CLOCKEVENTS
bool
config GENERIC_CMOS_UPDATE
def_bool !MMU
config GENERIC_GPIO
bool
config GENERIC_HWEIGHT
bool
default y
config GENERIC_CALIBRATE_DELAY
bool
default y
config GENERIC_IOMAP
def_bool MMU
config TIME_LOW_RES
bool
default y
config ARCH_USES_GETTIMEOFFSET
def_bool MMU
config NO_IOPORT
def_bool y
config NO_DMA
def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)
config ZONE_DMA
bool
default y
config CPU_HAS_NO_BITFIELDS
bool
config HZ
int
default 1000 if CLEOPATRA
default 100
source "init/Kconfig"
source "kernel/Kconfig.freezer"
config MMU
bool "MMU-based Paged Memory Management Support"
default y
help
Select if you want MMU-based virtualised addressing space
support by paged memory management. If unsure, say 'Y'.
config MMU_MOTOROLA
bool
config MMU_SUN3
bool
depends on MMU && !MMU_MOTOROLA
menu "Platform setup"
source arch/m68k/Kconfig.cpu
source arch/m68k/Kconfig.machine
source arch/m68k/Kconfig.bus
endmenu
menu "Kernel Features"
if COLDFIRE
source "kernel/Kconfig.preempt"
endif
if !MMU || COLDFIRE
source "kernel/time/Kconfig"
endif
source "mm/Kconfig"
endmenu
menu "Executable file formats"
source "fs/Kconfig.binfmt"
endmenu
if !MMU
menu "Power management options"
config PM
bool "Power Management support"
help
Support processor power management modes
endmenu
endif
source "net/Kconfig"
source "drivers/Kconfig"
source "arch/m68k/Kconfig.devices"
source "fs/Kconfig"
source "arch/m68k/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"