1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # Hexagon configuration !! 2 config M68K
3 comment "Linux Kernel Configuration for Hexago !! 3 bool
4 !! 4 default y
5 config HEXAGON <<
6 def_bool y <<
7 select ARCH_32BIT_OFF_T 5 select ARCH_32BIT_OFF_T
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 6 select ARCH_HAS_BINFMT_FLAT
9 select ARCH_NO_PREEMPT !! 7 select ARCH_HAS_CPU_CACHE_ALIASING
10 select ARCH_WANT_FRAME_POINTERS !! 8 select ARCH_HAS_CPU_FINALIZE_INIT if MMU
11 select DMA_GLOBAL_POOL !! 9 select ARCH_HAS_CURRENT_STACK_POINTER
12 select HAVE_PAGE_SIZE_4KB !! 10 select ARCH_HAS_DMA_PREP_COHERENT if M68K_NONCOHERENT_DMA && !COLDFIRE
13 select HAVE_PAGE_SIZE_16KB !! 11 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if M68K_NONCOHERENT_DMA
14 select HAVE_PAGE_SIZE_64KB !! 12 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
15 select HAVE_PAGE_SIZE_256KB !! 13 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
16 select FRAME_POINTER !! 14 select ARCH_NO_PREEMPT if !COLDFIRE
17 # Other pending projects/to-do items. !! 15 select ARCH_USE_MEMTEST if MMU_MOTOROLA
18 # select HAVE_REGS_AND_STACK_ACCESS_AP !! 16 select ARCH_WANT_IPC_PARSE_VERSION
19 # select HAVE_HW_BREAKPOINT if PERF_EV !! 17 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
20 # select ARCH_HAS_CPU_IDLE_WAIT !! 18 select DMA_DIRECT_REMAP if M68K_NONCOHERENT_DMA && !COLDFIRE
21 # select GPIOLIB <<
22 # select HAVE_CLK <<
23 # select GENERIC_PENDING_IRQ if SMP <<
24 select GENERIC_ATOMIC64 19 select GENERIC_ATOMIC64
25 select HAVE_PERF_EVENTS !! 20 select GENERIC_CPU_DEVICES
26 # GENERIC_ALLOCATOR is used by dma_all !! 21 select GENERIC_IOMAP if HAS_IOPORT
27 select GENERIC_ALLOCATOR <<
28 select GENERIC_IRQ_PROBE <<
29 select GENERIC_IRQ_SHOW 22 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_KGDB !! 23 select GENERIC_LIB_ASHLDI3
31 select HAVE_ARCH_TRACEHOOK !! 24 select GENERIC_LIB_ASHRDI3
32 select NEED_SG_DMA_LENGTH !! 25 select GENERIC_LIB_LSHRDI3
33 select NO_IOPORT_MAP !! 26 select HAS_IOPORT if PCI || ISA || ATARI_ROM_ISA
34 select GENERIC_IOMAP !! 27 select HAVE_ARCH_SECCOMP
35 select GENERIC_IOREMAP !! 28 select HAVE_ARCH_SECCOMP_FILTER
36 select GENERIC_SMP_IDLE_THREAD !! 29 select HAVE_ASM_MODVERSIONS
37 select STACKTRACE_SUPPORT !! 30 select HAVE_DEBUG_BUGVERBOSE
38 select GENERIC_CLOCKEVENTS_BROADCAST !! 31 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED
39 select LOCK_MM_AND_FIND_VMA !! 32 select HAVE_MOD_ARCH_SPECIFIC
>> 33 select HAVE_UID16
>> 34 select MMU_GATHER_NO_RANGE if MMU
>> 35 select MODULES_USE_ELF_REL
40 select MODULES_USE_ELF_RELA 36 select MODULES_USE_ELF_RELA
41 select GENERIC_CPU_DEVICES !! 37 select NO_DMA if !MMU && !COLDFIRE
42 select ARCH_WANT_LD_ORPHAN_WARN !! 38 select OLD_SIGACTION
43 select TRACE_IRQFLAGS_SUPPORT !! 39 select OLD_SIGSUSPEND3
44 help !! 40 select UACCESS_MEMCPY if !MMU
45 Qualcomm Hexagon is a processor arch !! 41 select ZONE_DMA
46 performance and low power across a w <<
47 42
48 config HEXAGON_PHYS_OFFSET !! 43 config CPU_BIG_ENDIAN
49 def_bool y 44 def_bool y
50 help <<
51 Platforms that don't load the kernel <<
52 45
53 config LOCKDEP_SUPPORT !! 46 config ARCH_HAS_ILOG2_U32
54 def_bool y !! 47 bool
55 48
56 config EARLY_PRINTK !! 49 config ARCH_HAS_ILOG2_U64
57 def_bool y !! 50 bool
58 51
59 config MMU !! 52 config GENERIC_HWEIGHT
60 def_bool y !! 53 bool
>> 54 default y
>> 55
>> 56 config GENERIC_CALIBRATE_DELAY
>> 57 bool
>> 58 default y
61 59
62 config GENERIC_CSUM 60 config GENERIC_CSUM
63 def_bool y !! 61 bool
64 62
65 config GENERIC_HWEIGHT !! 63 config TIME_LOW_RES
66 def_bool y !! 64 bool
>> 65 default y
67 66
68 config STACKTRACE_SUPPORT !! 67 config NO_IOPORT_MAP
69 def_bool y 68 def_bool y
70 select STACKTRACE <<
71 69
72 config GENERIC_BUG !! 70 config HZ
73 def_bool y !! 71 int
74 depends on BUG !! 72 default 1000 if CLEOPATRA
>> 73 default 100
75 74
76 menu "Machine selection" !! 75 config PGTABLE_LEVELS
>> 76 default 2 if SUN3 || COLDFIRE
>> 77 default 3
77 78
78 choice !! 79 config MMU
79 prompt "System type" !! 80 bool "MMU-based Paged Memory Management Support"
80 default HEXAGON_COMET !! 81 default y
81 <<
82 config HEXAGON_COMET <<
83 bool "Comet Board" <<
84 help 82 help
85 Support for the Comet platform. !! 83 Select if you want MMU-based virtualised addressing space
>> 84 support by paged memory management. If unsure, say 'Y'.
86 85
87 endchoice !! 86 config MMU_MOTOROLA
>> 87 bool
>> 88 select HAVE_PAGE_SIZE_4KB
88 89
89 config HEXAGON_ARCH_VERSION !! 90 config MMU_COLDFIRE
90 int "Architecture version" !! 91 select HAVE_PAGE_SIZE_8KB
91 default 2 !! 92 bool
92 93
93 config CMDLINE !! 94 config MMU_SUN3
94 string "Default kernel command string" !! 95 bool
95 default "" !! 96 select HAVE_PAGE_SIZE_8KB
96 help !! 97 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
97 On some platforms, there is currentl <<
98 to pass arguments to the kernel. For <<
99 command-line options at build time b <<
100 minimum, you should specify the memo <<
101 (e.g., mem=64M root=/dev/nfs). <<
102 98
103 config SMP !! 99 config ARCH_SUPPORTS_KEXEC
104 bool "Multi-Processing support" !! 100 def_bool M68KCLASSIC && MMU
105 help <<
106 Enables SMP support in the kernel. <<
107 101
108 config NR_CPUS !! 102 config BOOTINFO_PROC
109 int "Maximum number of CPUs" if SMP !! 103 bool "Export bootinfo in procfs"
110 range 2 6 if SMP !! 104 depends on KEXEC && M68KCLASSIC
111 default "1" if !SMP <<
112 default "6" if SMP <<
113 help 105 help
114 This allows you to specify the maxim !! 106 Say Y to export the bootinfo used to boot the kernel in a
115 kernel will support. The maximum su !! 107 "bootinfo" file in procfs. This is useful with kexec.
116 minimum value which makes sense is 2 !! 108
>> 109 menu "Platform setup"
>> 110
>> 111 source "arch/m68k/Kconfig.cpu"
>> 112
>> 113 source "arch/m68k/Kconfig.machine"
117 114
118 This is purely to save memory - each !! 115 source "arch/m68k/Kconfig.bus"
119 approximately eight kilobytes to the <<
120 116
121 source "kernel/Kconfig.hz" !! 117 endmenu
>> 118
>> 119 menu "Kernel Features"
>> 120
>> 121 endmenu
>> 122
>> 123 if !MMU
>> 124 menu "Power management options"
>> 125
>> 126 config PM
>> 127 bool "Power Management support"
>> 128 help
>> 129 Support processor power management modes
122 130
123 endmenu 131 endmenu
>> 132 endif
>> 133
>> 134 source "arch/m68k/Kconfig.devices"
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