1# SPDX-License-Identifier: GPL-2.0
  2config M68K
  3	bool
  4	default y
  5	select ARCH_32BIT_OFF_T
  6	select ARCH_HAS_BINFMT_FLAT
  7	select ARCH_HAS_DMA_PREP_COHERENT if HAS_DMA && MMU && !COLDFIRE
  8	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
 
  9	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
 10	select ARCH_NO_PREEMPT if !COLDFIRE
 
 11	select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
 12	select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE
 13	select HAVE_IDE
 14	select HAVE_AOUT if MMU
 15	select HAVE_ASM_MODVERSIONS
 16	select HAVE_DEBUG_BUGVERBOSE
 17	select GENERIC_IRQ_SHOW
 18	select GENERIC_ATOMIC64
 19	select HAVE_UID16
 20	select VIRT_TO_BUS
 21	select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
 22	select GENERIC_CPU_DEVICES
 23	select GENERIC_IOMAP
 
 24	select GENERIC_STRNCPY_FROM_USER if MMU
 25	select GENERIC_STRNLEN_USER if MMU
 26	select ARCH_WANT_IPC_PARSE_VERSION
 
 
 
 27	select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
 28	select HAVE_MOD_ARCH_SPECIFIC
 
 
 29	select MODULES_USE_ELF_REL
 30	select MODULES_USE_ELF_RELA
 31	select OLD_SIGSUSPEND3
 32	select OLD_SIGACTION
 33	select MMU_GATHER_NO_RANGE if MMU
 
 
 
 
 34
 35config CPU_BIG_ENDIAN
 36	def_bool y
 37
 38config ARCH_HAS_ILOG2_U32
 39	bool
 40
 41config ARCH_HAS_ILOG2_U64
 42	bool
 43
 44config GENERIC_HWEIGHT
 45	bool
 46	default y
 47
 48config GENERIC_CALIBRATE_DELAY
 49	bool
 50	default y
 51
 52config GENERIC_CSUM
 53	bool
 54
 55config TIME_LOW_RES
 56	bool
 57	default y
 58
 59config NO_IOPORT_MAP
 60	def_bool y
 61
 62config NO_DMA
 63	def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)
 64
 65config ZONE_DMA
 66	bool
 67	default y
 68
 69config HZ
 70	int
 71	default 1000 if CLEOPATRA
 72	default 100
 73
 74config PGTABLE_LEVELS
 75	default 2 if SUN3 || COLDFIRE
 76	default 3
 77
 78config MMU
 79	bool "MMU-based Paged Memory Management Support"
 80	default y
 81	help
 82	  Select if you want MMU-based virtualised addressing space
 83	  support by paged memory management. If unsure, say 'Y'.
 84
 85config MMU_MOTOROLA
 86	bool
 87
 88config MMU_COLDFIRE
 89	bool
 90
 91config MMU_SUN3
 92	bool
 93	depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
 94
 95config KEXEC
 96	bool "kexec system call"
 97	depends on M68KCLASSIC
 98	select KEXEC_CORE
 99	help
100	  kexec is a system call that implements the ability to shutdown your
101	  current kernel, and to start another kernel.  It is like a reboot
102	  but it is independent of the system firmware.   And like a reboot
103	  you can start any kernel with it, not just Linux.
104
105	  The name comes from the similarity to the exec system call.
106
107	  It is an ongoing process to be certain the hardware in a machine
108	  is properly shutdown, so do not be surprised if this code does not
109	  initially work for you.  As of this writing the exact hardware
110	  interface is strongly in flux, so no good recommendation can be
111	  made.
112
113config BOOTINFO_PROC
114	bool "Export bootinfo in procfs"
115	depends on KEXEC && M68KCLASSIC
116	help
117	  Say Y to export the bootinfo used to boot the kernel in a
118	  "bootinfo" file in procfs.  This is useful with kexec.
119
120menu "Platform setup"
121
122source "arch/m68k/Kconfig.cpu"
123
124source "arch/m68k/Kconfig.machine"
125
126source "arch/m68k/Kconfig.bus"
127
128endmenu
129
130menu "Kernel Features"
131
132endmenu
133
134if !MMU
135menu "Power management options"
136
137config PM
138	bool "Power Management support"
139	help
140	  Support processor power management modes
141
142endmenu
143endif
144
145source "arch/m68k/Kconfig.devices"

  1# SPDX-License-Identifier: GPL-2.0
  2config M68K
  3	bool
  4	default y
  5	select ARCH_32BIT_OFF_T
  6	select ARCH_HAS_BINFMT_FLAT
  7	select ARCH_HAS_DMA_PREP_COHERENT if HAS_DMA && MMU && !COLDFIRE
  8	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
  9	select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
 10	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
 11	select ARCH_NO_PREEMPT if !COLDFIRE
 12	select ARCH_WANT_IPC_PARSE_VERSION
 13	select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
 14	select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE
 
 
 
 
 
 15	select GENERIC_ATOMIC64
 
 
 
 16	select GENERIC_CPU_DEVICES
 17	select GENERIC_IOMAP
 18	select GENERIC_IRQ_SHOW
 19	select GENERIC_STRNCPY_FROM_USER if MMU
 20	select GENERIC_STRNLEN_USER if MMU
 21	select HAVE_AOUT if MMU
 22	select HAVE_ASM_MODVERSIONS
 23	select HAVE_DEBUG_BUGVERBOSE
 24	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED
 25	select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
 26	select HAVE_MOD_ARCH_SPECIFIC
 27	select HAVE_UID16
 28	select MMU_GATHER_NO_RANGE if MMU
 29	select MODULES_USE_ELF_REL
 30	select MODULES_USE_ELF_RELA
 31	select NO_DMA if !MMU && !COLDFIRE
 32	select OLD_SIGACTION
 33	select OLD_SIGSUSPEND3
 34	select SET_FS
 35	select UACCESS_MEMCPY if !MMU
 36	select VIRT_TO_BUS
 37	select ZONE_DMA
 38
 39config CPU_BIG_ENDIAN
 40	def_bool y
 41
 42config ARCH_HAS_ILOG2_U32
 43	bool
 44
 45config ARCH_HAS_ILOG2_U64
 46	bool
 47
 48config GENERIC_HWEIGHT
 49	bool
 50	default y
 51
 52config GENERIC_CALIBRATE_DELAY
 53	bool
 54	default y
 55
 56config GENERIC_CSUM
 57	bool
 58
 59config TIME_LOW_RES
 60	bool
 61	default y
 62
 63config NO_IOPORT_MAP
 64	def_bool y
 
 
 
 
 
 
 
 65
 66config HZ
 67	int
 68	default 1000 if CLEOPATRA
 69	default 100
 70
 71config PGTABLE_LEVELS
 72	default 2 if SUN3 || COLDFIRE
 73	default 3
 74
 75config MMU
 76	bool "MMU-based Paged Memory Management Support"
 77	default y
 78	help
 79	  Select if you want MMU-based virtualised addressing space
 80	  support by paged memory management. If unsure, say 'Y'.
 81
 82config MMU_MOTOROLA
 83	bool
 84
 85config MMU_COLDFIRE
 86	bool
 87
 88config MMU_SUN3
 89	bool
 90	depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
 91
 92config KEXEC
 93	bool "kexec system call"
 94	depends on M68KCLASSIC
 95	select KEXEC_CORE
 96	help
 97	  kexec is a system call that implements the ability to shutdown your
 98	  current kernel, and to start another kernel.  It is like a reboot
 99	  but it is independent of the system firmware.   And like a reboot
100	  you can start any kernel with it, not just Linux.
101
102	  The name comes from the similarity to the exec system call.
103
104	  It is an ongoing process to be certain the hardware in a machine
105	  is properly shutdown, so do not be surprised if this code does not
106	  initially work for you.  As of this writing the exact hardware
107	  interface is strongly in flux, so no good recommendation can be
108	  made.
109
110config BOOTINFO_PROC
111	bool "Export bootinfo in procfs"
112	depends on KEXEC && M68KCLASSIC
113	help
114	  Say Y to export the bootinfo used to boot the kernel in a
115	  "bootinfo" file in procfs.  This is useful with kexec.
116
117menu "Platform setup"
118
119source "arch/m68k/Kconfig.cpu"
120
121source "arch/m68k/Kconfig.machine"
122
123source "arch/m68k/Kconfig.bus"
124
125endmenu
126
127menu "Kernel Features"
128
129endmenu
130
131if !MMU
132menu "Power management options"
133
134config PM
135	bool "Power Management support"
136	help
137	  Support processor power management modes
138
139endmenu
140endif
141
142source "arch/m68k/Kconfig.devices"