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# SPDX-License-Identifier: GPL-2.0
config M68K
bool
default y
select ARCH_32BIT_OFF_T
select ARCH_HAS_BINFMT_FLAT
select ARCH_HAS_CURRENT_STACK_POINTER
select ARCH_HAS_DMA_PREP_COHERENT if HAS_DMA && MMU && !COLDFIRE
select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
select ARCH_NO_PREEMPT if !COLDFIRE
select ARCH_USE_MEMTEST if MMU_MOTOROLA
select ARCH_WANT_IPC_PARSE_VERSION
select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE
select GENERIC_ATOMIC64
select GENERIC_CPU_DEVICES
select GENERIC_IOMAP
select GENERIC_IRQ_SHOW
select HAS_IOPORT if PCI || ISA || ATARI_ROM_ISA
select HAVE_ARCH_SECCOMP
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ASM_MODVERSIONS
select HAVE_DEBUG_BUGVERBOSE
select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_UID16
select MMU_GATHER_NO_RANGE if MMU
select MODULES_USE_ELF_REL
select MODULES_USE_ELF_RELA
select NO_DMA if !MMU && !COLDFIRE
select OLD_SIGACTION
select OLD_SIGSUSPEND3
select UACCESS_MEMCPY if !MMU
select ZONE_DMA
config CPU_BIG_ENDIAN
def_bool y
config ARCH_HAS_ILOG2_U32
bool
config ARCH_HAS_ILOG2_U64
bool
config GENERIC_HWEIGHT
bool
default y
config GENERIC_CALIBRATE_DELAY
bool
default y
config GENERIC_CSUM
bool
config TIME_LOW_RES
bool
default y
config NO_IOPORT_MAP
def_bool y
config HZ
int
default 1000 if CLEOPATRA
default 100
config PGTABLE_LEVELS
default 2 if SUN3 || COLDFIRE
default 3
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_COLDFIRE
bool
config MMU_SUN3
bool
depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
config KEXEC
bool "kexec system call"
depends on M68KCLASSIC && MMU
select KEXEC_CORE
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. As of this writing the exact hardware
interface is strongly in flux, so no good recommendation can be
made.
config BOOTINFO_PROC
bool "Export bootinfo in procfs"
depends on KEXEC && M68KCLASSIC
help
Say Y to export the bootinfo used to boot the kernel in a
"bootinfo" file in procfs. This is useful with kexec.
menu "Platform setup"
source "arch/m68k/Kconfig.cpu"
source "arch/m68k/Kconfig.machine"
source "arch/m68k/Kconfig.bus"
endmenu
menu "Kernel Features"
endmenu
if !MMU
menu "Power management options"
config PM
bool "Power Management support"
help
Support processor power management modes
endmenu
endif
source "arch/m68k/Kconfig.devices"
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