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-rw-r--r--arch/m68k/Kconfig139
-rw-r--r--arch/m68k/Kconfig.bus61
-rw-r--r--arch/m68k/Kconfig.cpu539
-rw-r--r--arch/m68k/Kconfig.debug50
-rw-r--r--arch/m68k/Kconfig.devices146
-rw-r--r--arch/m68k/Kconfig.machine496
6 files changed, 1431 insertions, 0 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
new file mode 100644
index 000000000..1fe5b2018
--- /dev/null
+++ b/arch/m68k/Kconfig
@@ -0,0 +1,139 @@
+# SPDX-License-Identifier: GPL-2.0
+config M68K
+ bool
+ default y
+ select ARCH_32BIT_OFF_T
+ select ARCH_HAS_BINFMT_FLAT
+ select ARCH_HAS_CPU_FINALIZE_INIT if MMU
+ 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 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"
diff --git a/arch/m68k/Kconfig.bus b/arch/m68k/Kconfig.bus
new file mode 100644
index 000000000..d5c0b2990
--- /dev/null
+++ b/arch/m68k/Kconfig.bus
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0
+if MMU
+
+comment "Bus Support"
+
+config DIO
+ bool "DIO bus support"
+ depends on HP300
+ default y
+ help
+ Say Y here to enable support for the "DIO" expansion bus used in
+ HP300 machines. If you are using such a system you almost certainly
+ want this.
+
+config NUBUS
+ bool
+ depends on MAC
+ default y
+
+config ZORRO
+ bool "Amiga Zorro (AutoConfig) bus support"
+ depends on AMIGA
+ help
+ This enables support for the Zorro bus in the Amiga. If you have
+ expansion cards in your Amiga that conform to the Amiga
+ AutoConfig(tm) specification, say Y, otherwise N. Note that even
+ expansion cards that do not fit in the Zorro slots but fit in e.g.
+ the CPU slot may fall in this category, so you have to say Y to let
+ Linux use these.
+
+config AMIGA_PCMCIA
+ bool "Amiga 1200/600 PCMCIA support"
+ depends on AMIGA
+ help
+ Include support in the kernel for pcmcia on Amiga 1200 and Amiga
+ 600. If you intend to use pcmcia cards say Y; otherwise say N.
+
+config ISA
+ bool
+ depends on Q40 || AMIGA_PCMCIA
+ default y
+ 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 ATARI_ROM_ISA
+ bool "Atari ROM port ISA adapter support"
+ depends on ATARI
+ help
+ This option enables support for the ROM port ISA adapter used to
+ operate ISA cards on Atari. Only 8 bit cards are supported, and
+ no interrupt lines are connected.
+ The only driver currently using this adapter is the EtherNEC
+ driver for RTL8019AS based NE2000 compatible network cards.
+
+source "drivers/zorro/Kconfig"
+
+endif
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
new file mode 100644
index 000000000..9380f6e3b
--- /dev/null
+++ b/arch/m68k/Kconfig.cpu
@@ -0,0 +1,539 @@
+# SPDX-License-Identifier: GPL-2.0
+comment "Processor Type"
+
+choice
+ prompt "CPU family support"
+ default M68KCLASSIC if MMU
+ default COLDFIRE if !MMU
+ help
+ The Freescale (was Motorola) M68K family of processors implements
+ the full 68000 processor instruction set.
+ The Freescale ColdFire family of processors is a modern derivative
+ of the 68000 processor family. They are mainly targeted at embedded
+ applications, and are all System-On-Chip (SOC) devices, as opposed
+ to stand alone CPUs. They implement a subset of the original 68000
+ processor instruction set.
+ If you anticipate running this kernel on a computer with a classic
+ MC68xxx processor, select M68KCLASSIC.
+ If you anticipate running this kernel on a computer with a ColdFire
+ processor, select COLDFIRE.
+
+config M68KCLASSIC
+ bool "Classic M68K CPU family support"
+ select HAVE_ARCH_PFN_VALID
+
+config COLDFIRE
+ bool "Coldfire CPU family support"
+ select ARCH_HAVE_CUSTOM_GPIO_H
+ select CPU_HAS_NO_BITFIELDS
+ select CPU_HAS_NO_CAS
+ select CPU_HAS_NO_MULDIV64
+ select GENERIC_CSUM
+ select GPIOLIB
+ select HAVE_LEGACY_CLK
+
+endchoice
+
+if M68KCLASSIC
+
+config M68000
+ def_bool y
+ depends on !MMU
+ select CPU_HAS_NO_BITFIELDS
+ select CPU_HAS_NO_CAS
+ select CPU_HAS_NO_MULDIV64
+ select CPU_HAS_NO_UNALIGNED
+ select GENERIC_CSUM
+ select CPU_NO_EFFICIENT_FFS
+ select HAVE_ARCH_HASH
+ select LEGACY_TIMER_TICK
+ help
+ The Freescale (was Motorola) 68000 CPU is the first generation of
+ the well known M68K family of processors. The CPU core as well as
+ being available as a stand alone CPU was also used in many
+ System-On-Chip devices (eg 68328, 68302, etc). It does not contain
+ a paging MMU.
+
+config M68020
+ bool "68020 support"
+ depends on MMU
+ select FPU
+ select CPU_HAS_ADDRESS_SPACES
+ help
+ If you anticipate running this kernel on a computer with a MC68020
+ processor, say Y. Otherwise, say N. Note that the 68020 requires a
+ 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
+ Sun 3, which provides its own version.
+
+config M68030
+ bool "68030 support"
+ depends on MMU && !MMU_SUN3
+ select FPU
+ select CPU_HAS_ADDRESS_SPACES
+ help
+ If you anticipate running this kernel on a computer with a MC68030
+ processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
+ work, as it does not include an MMU (Memory Management Unit).
+
+config M68040
+ bool "68040 support"
+ depends on MMU && !MMU_SUN3
+ select FPU
+ select CPU_HAS_ADDRESS_SPACES
+ help
+ If you anticipate running this kernel on a computer with a MC68LC040
+ or MC68040 processor, say Y. Otherwise, say N. Note that an
+ MC68EC040 will not work, as it does not include an MMU (Memory
+ Management Unit).
+
+config M68060
+ bool "68060 support"
+ depends on MMU && !MMU_SUN3
+ select FPU
+ select CPU_HAS_ADDRESS_SPACES
+ help
+ If you anticipate running this kernel on a computer with a MC68060
+ processor, say Y. Otherwise, say N.
+
+config M68328
+ bool
+ depends on !MMU
+ select M68000
+ help
+ Motorola 68328 processor support.
+
+config M68EZ328
+ bool
+ depends on !MMU
+ select M68000
+ help
+ Motorola 68EX328 processor support.
+
+config M68VZ328
+ bool
+ depends on !MMU
+ select M68000
+ help
+ Motorola 68VZ328 processor support.
+
+endif # M68KCLASSIC
+
+if COLDFIRE
+
+choice
+ prompt "ColdFire SoC type"
+ default M520x
+ help
+ Select the type of ColdFire System-on-Chip (SoC) that you want
+ to build for.
+
+config M5206
+ bool "MCF5206"
+ depends on !MMU
+ select COLDFIRE_SW_A7
+ select COLDFIRE_TIMERS
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Motorola ColdFire 5206 processor support.
+
+config M5206e
+ bool "MCF5206e"
+ depends on !MMU
+ select COLDFIRE_SW_A7
+ select COLDFIRE_TIMERS
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Motorola ColdFire 5206e processor support.
+
+config M520x
+ bool "MCF520x"
+ depends on !MMU
+ select COLDFIRE_PIT_TIMER
+ select HAVE_CACHE_SPLIT
+ help
+ Freescale Coldfire 5207/5208 processor support.
+
+config M523x
+ bool "MCF523x"
+ depends on !MMU
+ select COLDFIRE_PIT_TIMER
+ select HAVE_CACHE_SPLIT
+ select HAVE_IPSBAR
+ help
+ Freescale Coldfire 5230/1/2/4/5 processor support
+
+config M5249
+ bool "MCF5249"
+ depends on !MMU
+ select COLDFIRE_SW_A7
+ select COLDFIRE_TIMERS
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Motorola ColdFire 5249 processor support.
+
+config M525x
+ bool "MCF525x"
+ depends on !MMU
+ select COLDFIRE_SW_A7
+ select COLDFIRE_TIMERS
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Freescale (Motorola) Coldfire 5251/5253 processor support.
+
+config M5271
+ bool "MCF5271"
+ depends on !MMU
+ select COLDFIRE_PIT_TIMER
+ select M527x
+ select HAVE_CACHE_SPLIT
+ select HAVE_IPSBAR
+ help
+ Freescale (Motorola) ColdFire 5270/5271 processor support.
+
+config M5272
+ bool "MCF5272"
+ depends on !MMU
+ select COLDFIRE_SW_A7
+ select COLDFIRE_TIMERS
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Motorola ColdFire 5272 processor support.
+
+config M5275
+ bool "MCF5275"
+ depends on !MMU
+ select COLDFIRE_PIT_TIMER
+ select M527x
+ select HAVE_CACHE_SPLIT
+ select HAVE_IPSBAR
+ help
+ Freescale (Motorola) ColdFire 5274/5275 processor support.
+
+config M528x
+ bool "MCF528x"
+ depends on !MMU
+ select COLDFIRE_PIT_TIMER
+ select HAVE_CACHE_SPLIT
+ select HAVE_IPSBAR
+ help
+ Motorola ColdFire 5280/5282 processor support.
+
+config M5307
+ bool "MCF5307"
+ depends on !MMU
+ select COLDFIRE_TIMERS
+ select COLDFIRE_SW_A7
+ select HAVE_CACHE_CB
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Motorola ColdFire 5307 processor support.
+
+config M532x
+ bool "MCF532x"
+ depends on !MMU
+ select COLDFIRE_TIMERS
+ select M53xx
+ select HAVE_CACHE_CB
+ help
+ Freescale (Motorola) ColdFire 532x processor support.
+
+config M537x
+ bool "MCF537x"
+ depends on !MMU
+ select COLDFIRE_TIMERS
+ select M53xx
+ select HAVE_CACHE_CB
+ help
+ Freescale ColdFire 537x processor support.
+
+config M5407
+ bool "MCF5407"
+ depends on !MMU
+ select COLDFIRE_SW_A7
+ select COLDFIRE_TIMERS
+ select HAVE_CACHE_CB
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Motorola ColdFire 5407 processor support.
+
+config M547x
+ bool "MCF547x"
+ select M54xx
+ select COLDFIRE_SLTIMERS
+ select MMU_COLDFIRE if MMU
+ select FPU if MMU
+ select HAVE_CACHE_CB
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Freescale ColdFire 5470/5471/5472/5473/5474/5475 processor support.
+
+config M548x
+ bool "MCF548x"
+ select COLDFIRE_SLTIMERS
+ select MMU_COLDFIRE if MMU
+ select FPU if MMU
+ select M54xx
+ select HAVE_CACHE_CB
+ select HAVE_MBAR
+ select CPU_NO_EFFICIENT_FFS
+ help
+ Freescale ColdFire 5480/5481/5482/5483/5484/5485 processor support.
+
+config M5441x
+ bool "MCF5441x"
+ select COLDFIRE_PIT_TIMER
+ select MMU_COLDFIRE if MMU
+ select HAVE_CACHE_CB
+ help
+ Freescale Coldfire 54410/54415/54416/54417/54418 processor support.
+
+endchoice
+
+config M527x
+ bool
+
+config M53xx
+ bool
+
+config M54xx
+ select HAVE_PCI
+ bool
+
+config COLDFIRE_PIT_TIMER
+ bool
+
+config COLDFIRE_TIMERS
+ bool
+ select LEGACY_TIMER_TICK
+
+config COLDFIRE_SLTIMERS
+ bool
+ select LEGACY_TIMER_TICK
+
+endif # COLDFIRE
+
+comment "Processor Specific Options"
+
+config M68KFPU_EMU
+ bool "Math emulation support"
+ depends on M68KCLASSIC && FPU
+ help
+ At some point in the future, this will cause floating-point math
+ instructions to be emulated by the kernel on machines that lack a
+ floating-point math coprocessor. Thrill-seekers and chronically
+ sleep-deprived psychotic hacker types can say Y now, everyone else
+ should probably wait a while.
+
+config M68KFPU_EMU_EXTRAPREC
+ bool "Math emulation extra precision"
+ depends on M68KFPU_EMU
+ help
+ The fpu uses normally a few bit more during calculations for
+ correct rounding, the emulator can (often) do the same but this
+ extra calculation can cost quite some time, so you can disable
+ it here. The emulator will then "only" calculate with a 64 bit
+ mantissa and round slightly incorrect, what is more than enough
+ for normal usage.
+
+config M68KFPU_EMU_ONLY
+ bool "Math emulation only kernel"
+ depends on M68KFPU_EMU
+ help
+ This option prevents any floating-point instructions from being
+ compiled into the kernel, thereby the kernel doesn't save any
+ floating point context anymore during task switches, so this
+ kernel will only be usable on machines without a floating-point
+ math coprocessor. This makes the kernel a bit faster as no tests
+ needs to be executed whether a floating-point instruction in the
+ kernel should be executed or not.
+
+config ADVANCED
+ bool "Advanced configuration options"
+ depends on MMU
+ help
+ This gives you access to some advanced options for the CPU. The
+ defaults should be fine for most users, but these options may make
+ it possible for you to improve performance somewhat if you know what
+ you are doing.
+
+ Note that the answer to this question won't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about these options.
+
+ Most users should say N to this question.
+
+config RMW_INSNS
+ bool "Use read-modify-write instructions"
+ depends on ADVANCED && !CPU_HAS_NO_CAS
+ help
+ This allows to use certain instructions that work with indivisible
+ read-modify-write bus cycles. While this is faster than the
+ workaround of disabling interrupts, it can conflict with DMA
+ ( = direct memory access) on many Amiga systems, and it is also said
+ to destabilize other machines. It is very likely that this will
+ cause serious problems on any Amiga or Atari Medusa if set. The only
+ configuration where it should work are 68030-based Ataris, where it
+ apparently improves performance. But you've been warned! Unless you
+ really know what you are doing, say N. Try Y only if you're quite
+ adventurous.
+
+config SINGLE_MEMORY_CHUNK
+ bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
+ depends on MMU
+ default y if SUN3 || MMU_COLDFIRE
+ help
+ Ignore all but the first contiguous chunk of physical memory for VM
+ purposes. This will save a few bytes kernel size and may speed up
+ some operations.
+ When this option os set to N, you may want to lower "Maximum zone
+ order" to save memory that could be wasted for unused memory map.
+ Say N if not sure.
+
+config ARCH_FORCE_MAX_ORDER
+ int "Maximum zone order" if ADVANCED
+ depends on !SINGLE_MEMORY_CHUNK
+ default "11"
+ help
+ The kernel memory allocator divides physically contiguous memory
+ blocks into "zones", where each zone is a power of two number of
+ pages. This option selects the largest power of two that the kernel
+ keeps in the memory allocator. If you need to allocate very large
+ blocks of physically contiguous memory, then you may need to
+ increase this value.
+
+ For systems that have holes in their physical address space this
+ value also defines the minimal size of the hole that allows
+ freeing unused memory map.
+
+ This config option is actually maximum order plus one. For example,
+ a value of 11 means that the largest free memory block is 2^10 pages.
+
+config 060_WRITETHROUGH
+ bool "Use write-through caching for 68060 supervisor accesses"
+ depends on ADVANCED && M68060
+ help
+ The 68060 generally uses copyback caching of recently accessed data.
+ Copyback caching means that memory writes will be held in an on-chip
+ cache and only written back to memory some time later. Saying Y
+ here will force supervisor (kernel) accesses to use writethrough
+ caching. Writethrough caching means that data is written to memory
+ straight away, so that cache and memory data always agree.
+ Writethrough caching is less efficient, but is needed for some
+ drivers on 68060 based systems where the 68060 bus snooping signal
+ is hardwired on. The 53c710 SCSI driver is known to suffer from
+ this problem.
+
+config M68K_L2_CACHE
+ bool
+ depends on MAC
+ default y
+
+config CPU_HAS_NO_BITFIELDS
+ bool
+
+config CPU_HAS_NO_CAS
+ bool
+
+config CPU_HAS_NO_MULDIV64
+ bool
+
+config CPU_HAS_NO_UNALIGNED
+ bool
+
+config CPU_HAS_ADDRESS_SPACES
+ bool
+ select ALTERNATE_USER_ADDRESS_SPACE
+
+config FPU
+ bool
+
+config COLDFIRE_SW_A7
+ bool
+
+config HAVE_CACHE_SPLIT
+ bool
+
+config HAVE_CACHE_CB
+ bool
+
+config HAVE_MBAR
+ bool
+
+config HAVE_IPSBAR
+ bool
+
+config CLOCK_FREQ
+ int "Set the core clock frequency"
+ default "25000000" if M5206
+ default "54000000" if M5206e
+ default "166666666" if M520x
+ default "140000000" if M5249
+ default "150000000" if M527x || M523x
+ default "90000000" if M5307
+ default "50000000" if M5407
+ default "266000000" if M54xx
+ default "66666666"
+ depends on COLDFIRE
+ help
+ Define the CPU clock frequency in use. This is the core clock
+ frequency, it may or may not be the same as the external clock
+ crystal fitted to your board. Some processors have an internal
+ PLL and can have their frequency programmed at run time, others
+ use internal dividers. In general the kernel won't setup a PLL
+ if it is fitted (there are some exceptions). This value will be
+ specific to the exact CPU that you are using.
+
+config OLDMASK
+ bool "Old mask 5307 (1H55J) silicon"
+ depends on M5307
+ help
+ Build support for the older revision ColdFire 5307 silicon.
+ Specifically this is the 1H55J mask revision.
+
+if HAVE_CACHE_SPLIT
+choice
+ prompt "Split Cache Configuration"
+ default CACHE_I
+
+config CACHE_I
+ bool "Instruction"
+ help
+ Use all of the ColdFire CPU cache memory as an instruction cache.
+
+config CACHE_D
+ bool "Data"
+ help
+ Use all of the ColdFire CPU cache memory as a data cache.
+
+config CACHE_BOTH
+ bool "Both"
+ help
+ Split the ColdFire CPU cache, and use half as an instruction cache
+ and half as a data cache.
+endchoice
+endif # HAVE_CACHE_SPLIT
+
+if HAVE_CACHE_CB
+choice
+ prompt "Data cache mode"
+ default CACHE_WRITETHRU
+
+config CACHE_WRITETHRU
+ bool "Write-through"
+ help
+ The ColdFire CPU cache is set into Write-through mode.
+
+config CACHE_COPYBACK
+ bool "Copy-back"
+ help
+ The ColdFire CPU cache is set into Copy-back mode.
+endchoice
+endif # HAVE_CACHE_CB
diff --git a/arch/m68k/Kconfig.debug b/arch/m68k/Kconfig.debug
new file mode 100644
index 000000000..465e28be0
--- /dev/null
+++ b/arch/m68k/Kconfig.debug
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config BOOTPARAM
+ bool "Compiled-in Kernel Boot Parameter"
+
+config BOOTPARAM_STRING
+ string "Kernel Boot Parameter"
+ default "console=ttyS0,19200"
+ depends on BOOTPARAM
+
+config EARLY_PRINTK
+ bool "Early printk"
+ depends on !(SUN3 || M68000 || COLDFIRE)
+ help
+ Write kernel log output directly to a serial port.
+ Where implemented, output goes to the framebuffer as well.
+ PROM console functionality on Sun 3x is not affected by this option.
+
+ Pass "earlyprintk" on the kernel command line to get a
+ boot console.
+
+ This is useful for kernel debugging when your machine crashes very
+ early, i.e. before the normal console driver is loaded.
+ You should normally say N here, unless you want to debug such a crash.
+
+if !MMU
+
+config FULLDEBUG
+ bool "Full Symbolic/Source Debugging support"
+ help
+ Enable debugging symbols on kernel build.
+
+config HIGHPROFILE
+ bool "Use fast second timer for profiling"
+ depends on COLDFIRE
+ help
+ Use a fast secondary clock to produce profiling information.
+
+config NO_KERNEL_MSG
+ bool "Suppress Kernel BUG Messages"
+ help
+ Do not output any debug BUG messages within the kernel.
+
+config BDM_DISABLE
+ bool "Disable BDM signals"
+ depends on COLDFIRE
+ help
+ Disable the ColdFire CPU's BDM signals.
+
+endif
diff --git a/arch/m68k/Kconfig.devices b/arch/m68k/Kconfig.devices
new file mode 100644
index 000000000..e6e3efac1
--- /dev/null
+++ b/arch/m68k/Kconfig.devices
@@ -0,0 +1,146 @@
+# SPDX-License-Identifier: GPL-2.0
+if MMU
+
+config ARCH_MAY_HAVE_PC_FDC
+ bool
+ depends on BROKEN && (Q40 || SUN3X)
+ default y
+
+menu "Platform devices"
+
+config HEARTBEAT
+ bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || Q40
+ default y if !AMIGA && !APOLLO && !ATARI && !Q40 && HP300
+ help
+ Use the power-on LED on your machine as a load meter. The exact
+ behavior is platform-dependent, but normally the flash frequency is
+ a hyperbolic function of the 5-minute load average.
+
+# We have a dedicated heartbeat LED. :-)
+config PROC_HARDWARE
+ bool "/proc/hardware support"
+ depends on PROC_FS
+ help
+ Say Y here to support the /proc/hardware file, which gives you
+ access to information about the machine you're running on,
+ including the model, CPU, MMU, clock speed, BogoMIPS rating,
+ and memory size.
+
+config NATFEAT
+ bool "ARAnyM emulator support"
+ depends on ATARI
+ help
+ This option enables support for ARAnyM native features, such as
+ access to a disk image as /dev/hda.
+
+config NFBLOCK
+ tristate "NatFeat block device support"
+ depends on BLOCK && NATFEAT
+ help
+ Say Y to include support for the ARAnyM NatFeat block device
+ which allows direct access to the hard drives without using
+ the hardware emulation.
+
+config NFCON
+ tristate "NatFeat console driver"
+ depends on TTY && NATFEAT
+ help
+ Say Y to include support for the ARAnyM NatFeat console driver
+ which allows the console output to be redirected to the stderr
+ output of ARAnyM.
+
+config NFETH
+ tristate "NatFeat Ethernet support"
+ depends on ETHERNET && NATFEAT
+ help
+ Say Y to include support for the ARAnyM NatFeat network device
+ which will emulate a regular ethernet device while presenting an
+ ethertap device to the host system.
+
+config ATARI_ETHERNAT
+ bool "Atari EtherNAT Ethernet support"
+ depends on ATARI
+ help
+ Say Y to include support for the EtherNAT network adapter for the
+ CT/60 extension port.
+
+ To compile the actual ethernet driver, choose Y or M for the SMC91X
+ option in the network device section; the module will be called smc91x.
+
+config ATARI_ETHERNEC
+ bool "Atari EtherNEC Ethernet support"
+ depends on ATARI_ROM_ISA
+ help
+ Say Y to include support for the EtherNEC network adapter for the
+ ROM port. The driver works by polling instead of interrupts, so it
+ is quite slow.
+
+ This driver also supports the ethernet part of the NetUSBee ROM
+ port combined Ethernet/USB adapter.
+
+ To compile the actual ethernet driver, choose Y or M in for the NE2000
+ option in the network device section; the module will be called ne.
+
+endmenu
+
+menu "Character devices"
+
+config ATARI_DSP56K
+ tristate "Atari DSP56k support"
+ depends on ATARI
+ help
+ If you want to be able to use the DSP56001 in Falcons, say Y. This
+ driver is still experimental, and if you don't know what it is, or
+ if you don't have this processor, just say N.
+
+ To compile this driver as a module, choose M here.
+
+config AMIGA_BUILTIN_SERIAL
+ tristate "Amiga builtin serial support"
+ depends on AMIGA && TTY
+ help
+ If you want to use your Amiga's built-in serial port in Linux,
+ answer Y.
+
+ To compile this driver as a module, choose M here.
+
+config HPDCA
+ tristate "HP DCA serial support"
+ depends on DIO && SERIAL_8250
+ help
+ If you want to use the internal "DCA" serial ports on an HP300
+ machine, say Y here.
+
+config HPAPCI
+ tristate "HP APCI serial support"
+ depends on HP300 && SERIAL_8250
+ help
+ If you want to use the internal "APCI" serial ports on an HP400
+ machine, say Y here.
+
+config SERIAL_CONSOLE
+ bool "Support for serial port console"
+ depends on AMIGA_BUILTIN_SERIAL=y
+ help
+ If you say Y here, it will be possible to use a serial port as the
+ system console (the system console is the device which receives all
+ kernel messages and warnings and which allows logins in single user
+ mode). This could be useful if some terminal or printer is connected
+ to that serial port.
+
+ Even if you say Y here, the currently visible virtual console
+ (/dev/tty0) will still be used as the system console by default, but
+ you can alter that using a kernel command line option such as
+ "console=ttyS1". (Try "man bootparam" or see the documentation of
+ your boot loader about how to pass options to the kernel at boot
+ time.)
+
+ If you don't have a graphical console and you say Y here, the
+ kernel will automatically use the first serial line, /dev/ttyS0, as
+ system console.
+
+ If unsure, say N.
+
+endmenu
+
+endif
diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
new file mode 100644
index 000000000..53c45ccda
--- /dev/null
+++ b/arch/m68k/Kconfig.machine
@@ -0,0 +1,496 @@
+# SPDX-License-Identifier: GPL-2.0
+comment "Machine Types"
+
+if M68KCLASSIC
+
+config AMIGA
+ bool "Amiga support"
+ depends on MMU
+ select MMU_MOTOROLA if MMU
+ select LEGACY_TIMER_TICK
+ help
+ This option enables support for the Amiga series of computers. If
+ you plan to use this kernel on an Amiga, say Y here and browse the
+ material available in <file:Documentation/m68k>; otherwise say N.
+
+config ATARI
+ bool "Atari support"
+ depends on MMU
+ select MMU_MOTOROLA if MMU
+ select HAVE_ARCH_NVRAM_OPS
+ select LEGACY_TIMER_TICK
+ help
+ This option enables support for the 68000-based Atari series of
+ computers (including the TT, Falcon and Medusa). If you plan to use
+ this kernel on an Atari, say Y here and browse the material
+ available in <file:Documentation/m68k>; otherwise say N.
+
+config ATARI_KBD_CORE
+ bool
+
+config MAC
+ bool "Macintosh support"
+ depends on MMU
+ select MMU_MOTOROLA if MMU
+ select HAVE_ARCH_NVRAM_OPS
+ select HAVE_PATA_PLATFORM
+ select LEGACY_TIMER_TICK
+ help
+ This option enables support for the Apple Macintosh series of
+ computers. If you plan to use this kernel on a Mac, say Y here and
+ browse the documentation available at <http://www.mac.linux-m68k.org/>;
+ otherwise say N.
+
+config APOLLO
+ bool "Apollo support"
+ depends on MMU
+ select MMU_MOTOROLA if MMU
+ select LEGACY_TIMER_TICK
+ help
+ Say Y here if you want to run Linux on an MC680x0-based Apollo
+ Domain workstation such as the DN3500.
+
+config VME
+ bool "VME (Motorola and BVM) support"
+ depends on MMU
+ select MMU_MOTOROLA if MMU
+ help
+ Say Y here if you want to build a kernel for a 680x0 based VME
+ board. Boards currently supported include Motorola boards MVME147,
+ MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
+ BVME6000 boards from BVM Ltd are also supported.
+
+config MVME147
+ bool "MVME147 support"
+ depends on MMU
+ depends on VME
+ select LEGACY_TIMER_TICK
+ help
+ Say Y to include support for early Motorola VME boards. This will
+ build a kernel which can run on MVME147 single-board computers. If
+ you select this option you will have to select the appropriate
+ drivers for SCSI, Ethernet and serial ports later on.
+
+config MVME16x
+ bool "MVME162, 166 and 167 support"
+ depends on MMU
+ depends on VME
+ select LEGACY_TIMER_TICK
+ help
+ Say Y to include support for Motorola VME boards. This will build a
+ kernel which can run on MVME162, MVME166, MVME167, MVME172, and
+ MVME177 boards. If you select this option you will have to select
+ the appropriate drivers for SCSI, Ethernet and serial ports later
+ on.
+
+config BVME6000
+ bool "BVME4000 and BVME6000 support"
+ depends on MMU
+ depends on VME
+ select LEGACY_TIMER_TICK
+ help
+ Say Y to include support for VME boards from BVM Ltd. This will
+ build a kernel which can run on BVME4000 and BVME6000 boards. If
+ you select this option you will have to select the appropriate
+ drivers for SCSI, Ethernet and serial ports later on.
+
+config HP300
+ bool "HP9000/300 and HP9000/400 support"
+ depends on MMU
+ select MMU_MOTOROLA if MMU
+ select LEGACY_TIMER_TICK
+ help
+ This option enables support for the HP9000/300 and HP9000/400 series
+ of workstations. Support for these machines is still somewhat
+ experimental. If you plan to try to use the kernel on such a machine
+ say Y here.
+ Everybody else says N.
+
+config SUN3X
+ bool "Sun3x support"
+ depends on MMU
+ select LEGACY_TIMER_TICK
+ select MMU_MOTOROLA if MMU
+ select M68030
+ help
+ This option enables support for the Sun 3x series of workstations.
+ Be warned that this support is very experimental.
+ Note that Sun 3x kernels are not compatible with Sun 3 hardware.
+ General Linux information on the Sun 3x series (now discontinued)
+ is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
+
+ If you don't want to compile a kernel for a Sun 3x, say N.
+
+config Q40
+ bool "Q40/Q60 support"
+ depends on MMU
+ select MMU_MOTOROLA if MMU
+ select LEGACY_TIMER_TICK
+ help
+ The Q40 is a Motorola 68040-based successor to the Sinclair QL
+ manufactured in Germany. There is an official Q40 home page at
+ <http://www.q40.de/>. This option enables support for the Q40 and
+ Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
+ emulation.
+
+config SUN3
+ bool "Sun3 support"
+ depends on MMU
+ depends on !MMU_MOTOROLA
+ select MMU_SUN3 if MMU
+ select LEGACY_TIMER_TICK
+ select NO_DMA
+ select M68020
+ help
+ This option enables support for the Sun 3 series of workstations
+ (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
+ that all other hardware types must be disabled, as Sun 3 kernels
+ are incompatible with all other m68k targets (including Sun 3x!).
+
+ If you don't want to compile a kernel exclusively for a Sun 3, say N.
+
+config VIRT
+ bool "Virtual M68k Machine support"
+ depends on MMU
+ select GENERIC_CLOCKEVENTS
+ select GOLDFISH
+ select GOLDFISH_TIMER
+ select GOLDFISH_TTY
+ select M68040
+ select MMU_MOTOROLA if MMU
+ select RTC_CLASS
+ select RTC_DRV_GOLDFISH
+ select TTY
+ select VIRTIO_MENU
+ select VIRTIO_MMIO
+ help
+ This options enable a pure virtual machine based on m68k,
+ VIRTIO MMIO devices and GOLDFISH interfaces (TTY, RTC, PIC).
+
+config PILOT
+ bool
+
+config PILOT3
+ bool "Pilot 1000/5000, PalmPilot Personal/Pro, or PalmIII support"
+ depends on !MMU
+ select M68328
+ select PILOT
+ help
+ Support for the Palm Pilot 1000/5000, Personal/Pro and PalmIII.
+
+config XCOPILOT_BUGS
+ bool "(X)Copilot support"
+ depends on PILOT3
+ help
+ Support the bugs of Xcopilot.
+
+config UCSIMM
+ bool "uCsimm module support"
+ depends on !MMU
+ select M68EZ328
+ help
+ Support for the Arcturus Networks uCsimm module.
+
+config UCDIMM
+ bool "uDsimm module support"
+ depends on !MMU
+ select M68VZ328
+ help
+ Support for the Arcturus Networks uDsimm module.
+
+config DRAGEN2
+ bool "DragenEngine II board support"
+ depends on !MMU
+ select M68VZ328
+ help
+ Support for the DragenEngine II board.
+
+config DIRECT_IO_ACCESS
+ bool "Allow user to access IO directly"
+ depends on (UCSIMM || UCDIMM || DRAGEN2)
+ help
+ Disable the CPU internal registers protection in user mode,
+ to allow a user application to read/write them.
+
+config INIT_LCD
+ bool "Initialize LCD"
+ depends on (UCSIMM || UCDIMM || DRAGEN2)
+ help
+ Initialize the LCD controller of the 68x328 processor.
+
+config MEMORY_RESERVE
+ int "Memory reservation (MiB)"
+ depends on (UCSIMM || UCDIMM)
+ default 0
+ help
+ Reserve certain memory regions on 68x328 based boards.
+
+endif # M68KCLASSIC
+
+config ARN5206
+ bool "Arnewsh 5206 board support"
+ depends on M5206
+ help
+ Support for the Arnewsh 5206 board.
+
+config M5206eC3
+ bool "Motorola M5206eC3 board support"
+ depends on M5206e
+ help
+ Support for the Motorola M5206eC3 board.
+
+config ELITE
+ bool "Motorola M5206eLITE board support"
+ depends on M5206e
+ help
+ Support for the Motorola M5206eLITE board.
+
+config M5235EVB
+ bool "Freescale M5235EVB support"
+ depends on M523x
+ help
+ Support for the Freescale M5235EVB board.
+
+config M5249C3
+ bool "Motorola M5249C3 board support"
+ depends on M5249
+ help
+ Support for the Motorola M5249C3 board.
+
+config M5272C3
+ bool "Motorola M5272C3 board support"
+ depends on M5272
+ help
+ Support for the Motorola M5272C3 board.
+
+config WILDFIRE
+ bool "Intec Automation Inc. WildFire board support"
+ depends on M528x
+ help
+ Support for the Intec Automation Inc. WildFire.
+
+config WILDFIREMOD
+ bool "Intec Automation Inc. WildFire module support"
+ depends on M528x
+ help
+ Support for the Intec Automation Inc. WildFire module.
+
+config ARN5307
+ bool "Arnewsh 5307 board support"
+ depends on M5307
+ help
+ Support for the Arnewsh 5307 board.
+
+config M5307C3
+ bool "Motorola M5307C3 board support"
+ depends on M5307
+ help
+ Support for the Motorola M5307C3 board.
+
+config SECUREEDGEMP3
+ bool "SnapGear SecureEdge/MP3 platform support"
+ depends on M5307
+ help
+ Support for the SnapGear SecureEdge/MP3 platform.
+
+config M5407C3
+ bool "Motorola M5407C3 board support"
+ depends on M5407
+ help
+ Support for the Motorola M5407C3 board.
+
+config AMCORE
+ bool "Sysam AMCORE board support"
+ depends on M5307
+ help
+ Support for the Sysam AMCORE open-hardware generic board.
+
+config STMARK2
+ bool "Sysam stmark2 board support"
+ depends on M5441x
+ help
+ Support for the Sysam stmark2 open-hardware generic board.
+
+config FIREBEE
+ bool "FireBee board support"
+ depends on M547x
+ help
+ Support for the FireBee ColdFire 5475 based board.
+
+config CLEOPATRA
+ bool "Feith CLEOPATRA board support"
+ depends on (M5307 || M5407)
+ help
+ Support for the Feith Cleopatra boards.
+
+config CANCam
+ bool "Feith CANCam board support"
+ depends on M5272
+ help
+ Support for the Feith CANCam board.
+
+config SCALES
+ bool "Feith SCALES board support"
+ depends on M5272
+ help
+ Support for the Feith SCALES board.
+
+config NETtel
+ bool "SecureEdge/NETtel board support"
+ depends on (M5206e || M5272 || M5307)
+ help
+ Support for the SnapGear NETtel/SecureEdge/SnapGear boards.
+
+config MOD5272
+ bool "Netburner MOD-5272 board support"
+ depends on M5272
+ help
+ Support for the Netburner MOD-5272 board.
+
+if !MMU || COLDFIRE
+
+comment "Machine Options"
+
+config UBOOT
+ bool "Support for U-Boot command line parameters"
+ depends on COLDFIRE
+ help
+ If you say Y here kernel will try to collect command
+ line parameters from the initial u-boot stack.
+
+config 4KSTACKS
+ bool "Use 4Kb for kernel stacks instead of 8Kb"
+ default y
+ help
+ If you say Y here the kernel will use a 4Kb stacksize for the
+ kernel stack attached to each process/thread. This facilitates
+ running more threads on a system and also reduces the pressure
+ on the VM subsystem for higher order allocations.
+
+comment "RAM configuration"
+
+config RAMBASE
+ hex "Address of the base of RAM"
+ default "0"
+ help
+ Define the address that RAM starts at. On many platforms this is
+ 0, the base of the address space. And this is the default. Some
+ platforms choose to setup their RAM at other addresses within the
+ processor address space.
+
+config RAMSIZE
+ hex "Size of RAM (in bytes), or 0 for automatic"
+ default "0x400000"
+ help
+ Define the size of the system RAM. If you select 0 then the
+ kernel will try to probe the RAM size at runtime. This is not
+ supported on all CPU types.
+
+config VECTORBASE
+ hex "Address of the base of system vectors"
+ default "0"
+ help
+ Define the address of the system vectors. Commonly this is
+ put at the start of RAM, but it doesn't have to be. On ColdFire
+ platforms this address is programmed into the VBR register, thus
+ actually setting the address to use.
+
+config MBAR
+ hex "Address of the MBAR (internal peripherals)"
+ default "0x10000000"
+ depends on HAVE_MBAR
+ help
+ Define the address of the internal system peripherals. This value
+ is set in the processors MBAR register. This is generally setup by
+ the boot loader, and will not be written by the kernel. By far most
+ ColdFire boards use the default 0x10000000 value, so if unsure then
+ use this.
+
+config IPSBAR
+ hex "Address of the IPSBAR (internal peripherals)"
+ default "0x40000000"
+ depends on HAVE_IPSBAR
+ help
+ Define the address of the internal system peripherals. This value
+ is set in the processors IPSBAR register. This is generally setup by
+ the boot loader, and will not be written by the kernel. By far most
+ ColdFire boards use the default 0x40000000 value, so if unsure then
+ use this.
+
+config KERNELBASE
+ hex "Address of the base of kernel code"
+ default "0x400"
+ help
+ Typically on m68k systems the kernel will not start at the base
+ of RAM, but usually some small offset from it. Define the start
+ address of the kernel here. The most common setup will have the
+ processor vectors at the base of RAM and then the start of the
+ kernel. On some platforms some RAM is reserved for boot loaders
+ and the kernel starts after that. The 0x400 default was based on
+ a system with the RAM based at address 0, and leaving enough room
+ for the theoretical maximum number of 256 vectors.
+
+comment "ROM configuration"
+
+config ROM
+ bool "Specify ROM linker regions"
+ help
+ Define a ROM region for the linker script. This creates a kernel
+ that can be stored in flash, with possibly the text, and data
+ regions being copied out to RAM at startup.
+
+config ROMBASE
+ hex "Address of the base of ROM device"
+ default "0"
+ depends on ROM
+ help
+ Define the address that the ROM region starts at. Some platforms
+ use this to set their chip select region accordingly for the boot
+ device.
+
+config ROMVEC
+ hex "Address of the base of the ROM vectors"
+ default "0"
+ depends on ROM
+ help
+ This is almost always the same as the base of the ROM. Since on all
+ 68000 type variants the vectors are at the base of the boot device
+ on system startup.
+
+config ROMSTART
+ hex "Address of the base of system image in ROM"
+ default "0x400"
+ depends on ROM
+ help
+ Define the start address of the system image in ROM. Commonly this
+ is strait after the ROM vectors.
+
+config ROMSIZE
+ hex "Size of the ROM device"
+ default "0x100000"
+ depends on ROM
+ help
+ Size of the ROM device. On some platforms this is used to setup
+ the chip select that controls the boot ROM device.
+
+choice
+ prompt "Kernel executes from"
+ help
+ Choose the memory type that the kernel will be running in.
+
+config RAMKERNEL
+ bool "RAM"
+ help
+ The kernel will be resident in RAM when running.
+
+config ROMKERNEL
+ bool "ROM"
+ depends on ROM
+ help
+ The kernel will be resident in FLASH/ROM when running. This is
+ often referred to as Execute-in-Place (XIP), since the kernel
+ code executes from the position it is stored in the FLASH/ROM.
+
+endchoice
+
+endif # !MMU || COLDFIRE