1 # SPDX-License-Identifier: GPL-2.0
2 # Hexagon configuration
3 comment "Linux Kernel Configuration for Hexago
4
5 config HEXAGON
6 def_bool y
7 select ARCH_32BIT_OFF_T
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
9 select ARCH_NO_PREEMPT
10 select ARCH_WANT_FRAME_POINTERS
11 select DMA_GLOBAL_POOL
12 select HAVE_PAGE_SIZE_4KB
13 select HAVE_PAGE_SIZE_16KB
14 select HAVE_PAGE_SIZE_64KB
15 select HAVE_PAGE_SIZE_256KB
16 select FRAME_POINTER
17 # Other pending projects/to-do items.
18 # select HAVE_REGS_AND_STACK_ACCESS_AP
19 # select HAVE_HW_BREAKPOINT if PERF_EV
20 # select ARCH_HAS_CPU_IDLE_WAIT
21 # select GPIOLIB
22 # select HAVE_CLK
23 # select GENERIC_PENDING_IRQ if SMP
24 select GENERIC_ATOMIC64
25 select HAVE_PERF_EVENTS
26 # GENERIC_ALLOCATOR is used by dma_all
27 select GENERIC_ALLOCATOR
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_KGDB
31 select HAVE_ARCH_TRACEHOOK
32 select NEED_SG_DMA_LENGTH
33 select NO_IOPORT_MAP
34 select GENERIC_IOMAP
35 select GENERIC_IOREMAP
36 select GENERIC_SMP_IDLE_THREAD
37 select STACKTRACE_SUPPORT
38 select GENERIC_CLOCKEVENTS_BROADCAST
39 select LOCK_MM_AND_FIND_VMA
40 select MODULES_USE_ELF_RELA
41 select GENERIC_CPU_DEVICES
42 select ARCH_WANT_LD_ORPHAN_WARN
43 select TRACE_IRQFLAGS_SUPPORT
44 help
45 Qualcomm Hexagon is a processor arch
46 performance and low power across a w
47
48 config HEXAGON_PHYS_OFFSET
49 def_bool y
50 help
51 Platforms that don't load the kernel
52
53 config LOCKDEP_SUPPORT
54 def_bool y
55
56 config EARLY_PRINTK
57 def_bool y
58
59 config MMU
60 def_bool y
61
62 config GENERIC_CSUM
63 def_bool y
64
65 config GENERIC_HWEIGHT
66 def_bool y
67
68 config STACKTRACE_SUPPORT
69 def_bool y
70 select STACKTRACE
71
72 config GENERIC_BUG
73 def_bool y
74 depends on BUG
75
76 menu "Machine selection"
77
78 choice
79 prompt "System type"
80 default HEXAGON_COMET
81
82 config HEXAGON_COMET
83 bool "Comet Board"
84 help
85 Support for the Comet platform.
86
87 endchoice
88
89 config HEXAGON_ARCH_VERSION
90 int "Architecture version"
91 default 2
92
93 config CMDLINE
94 string "Default kernel command string"
95 default ""
96 help
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
103 config SMP
104 bool "Multi-Processing support"
105 help
106 Enables SMP support in the kernel.
107
108 config NR_CPUS
109 int "Maximum number of CPUs" if SMP
110 range 2 6 if SMP
111 default "1" if !SMP
112 default "6" if SMP
113 help
114 This allows you to specify the maxim
115 kernel will support. The maximum su
116 minimum value which makes sense is 2
117
118 This is purely to save memory - each
119 approximately eight kilobytes to the
120
121 source "kernel/Kconfig.hz"
122
123 endmenu
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