1 # SPDX-License-Identifier: GPL-2.0-only
2 config MICROBLAZE
3 def_bool y
4 select ARCH_32BIT_OFF_T
5 select ARCH_NO_SWAP
6 select ARCH_HAS_DMA_PREP_COHERENT
7 select ARCH_HAS_GCOV_PROFILE_ALL
8 select ARCH_HAS_SYNC_DMA_FOR_CPU
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
10 select ARCH_MIGHT_HAVE_PC_PARPORT
11 select ARCH_WANT_IPC_PARSE_VERSION
12 select BUILDTIME_TABLE_SORT
13 select TIMER_OF
14 select CLONE_BACKWARDS3
15 select COMMON_CLK
16 select DMA_DIRECT_REMAP
17 select GENERIC_ATOMIC64
18 select GENERIC_CPU_DEVICES
19 select GENERIC_IDLE_POLL_SETUP
20 select GENERIC_IRQ_PROBE
21 select GENERIC_IRQ_SHOW
22 select GENERIC_PCI_IOMAP
23 select GENERIC_SCHED_CLOCK
24 select HAS_IOPORT if PCI
25 select HAVE_ARCH_HASH
26 select HAVE_ARCH_KGDB
27 select HAVE_ARCH_SECCOMP
28 select HAVE_DEBUG_KMEMLEAK
29 select HAVE_DMA_CONTIGUOUS
30 select HAVE_DYNAMIC_FTRACE
31 select HAVE_FTRACE_MCOUNT_RECORD
32 select HAVE_FUNCTION_GRAPH_TRACER
33 select HAVE_FUNCTION_TRACER
34 select HAVE_PAGE_SIZE_4KB
35 select HAVE_PCI
36 select IRQ_DOMAIN
37 select XILINX_INTC
38 select MODULES_USE_ELF_RELA
39 select OF
40 select OF_EARLY_FLATTREE
41 select PCI_DOMAINS_GENERIC if PCI
42 select PCI_SYSCALL if PCI
43 select CPU_NO_EFFICIENT_FFS
44 select MMU_GATHER_NO_RANGE
45 select SPARSE_IRQ
46 select ZONE_DMA
47 select TRACE_IRQFLAGS_SUPPORT
48 select GENERIC_IRQ_MULTI_HANDLER
49
50 # Endianness selection
51 choice
52 prompt "Endianness selection"
53 default CPU_LITTLE_ENDIAN
54 help
55 microblaze architectures can be conf
56 big endian formats. Be sure to selec
57
58 config CPU_BIG_ENDIAN
59 bool "Big endian"
60
61 config CPU_LITTLE_ENDIAN
62 bool "Little endian"
63
64 endchoice
65
66 config ARCH_HAS_ILOG2_U32
67 def_bool n
68
69 config ARCH_HAS_ILOG2_U64
70 def_bool n
71
72 config GENERIC_HWEIGHT
73 def_bool y
74
75 config GENERIC_CALIBRATE_DELAY
76 def_bool y
77
78 config GENERIC_CSUM
79 def_bool y
80
81 config STACKTRACE_SUPPORT
82 def_bool y
83
84 config LOCKDEP_SUPPORT
85 def_bool y
86
87 source "arch/microblaze/Kconfig.platform"
88
89 menu "Processor type and features"
90
91 source "kernel/Kconfig.hz"
92
93 config MMU
94 def_bool y
95
96 comment "Boot options"
97
98 config CMDLINE_BOOL
99 bool "Default bootloader kernel argume
100
101 config CMDLINE
102 string "Default kernel command string"
103 depends on CMDLINE_BOOL
104 default "console=ttyUL0,115200"
105 help
106 On some architectures there is curre
107 to pass arguments to the kernel. For
108 supply some command-line options at
109 here.
110
111 config CMDLINE_FORCE
112 bool "Force default kernel command str
113 depends on CMDLINE_BOOL
114 default n
115 help
116 Set this to have arguments from the
117 override those passed by the boot lo
118
119 endmenu
120
121 menu "Kernel features"
122
123 config NR_CPUS
124 int
125 default "1"
126
127 config ADVANCED_OPTIONS
128 bool "Prompt for advanced kernel confi
129 help
130 This option will enable prompting fo
131 configuration options. These option
132 work if they are set incorrectly, bu
133 aspects of kernel memory management.
134
135 Unless you know what you are doing,
136
137 comment "Default settings for advanced configu
138 depends on !ADVANCED_OPTIONS
139
140 config HIGHMEM
141 bool "High memory support"
142 select KMAP_LOCAL
143 help
144 The address space of Microblaze proc
145 and it has to accommodate user addre
146 space as well as some memory mapped
147 have a large amount of physical memo
148 memory can be "permanently mapped" b
149 memory that is not permanently mappe
150
151 If unsure, say n.
152
153 config LOWMEM_SIZE_BOOL
154 bool "Set maximum low memory"
155 depends on ADVANCED_OPTIONS
156 help
157 This option allows you to set the ma
158 will be used as "low memory", that i
159 access directly, without having to s
160 This can be useful in optimizing the
161 memory.
162
163 Say N here unless you know what you
164
165 config LOWMEM_SIZE
166 hex "Maximum low memory size (in bytes
167 default "0x30000000"
168
169 config MANUAL_RESET_VECTOR
170 hex "Microblaze reset vector address s
171 default "0x0"
172 help
173 Set this option to have the kernel o
174 If zero, no change will be made to t
175 address 0x0.
176 If non-zero, a jump instruction to t
177 to the reset vector at address 0x0.
178 If you are unsure, set it to default
179
180 config KERNEL_START_BOOL
181 bool "Set custom kernel base address"
182 depends on ADVANCED_OPTIONS
183 help
184 This option allows you to set the ke
185 the kernel will map low memory (the
186 this address). This can be useful i
187 layout of the system.
188
189 Say N here unless you know what you
190
191 config KERNEL_START
192 hex "Virtual address of kernel base" i
193 default "0xc0000000"
194
195 config TASK_SIZE_BOOL
196 bool "Set custom user task size"
197 depends on ADVANCED_OPTIONS
198 help
199 This option allows you to set the am
200 allocated to user tasks. This can b
201 virtual memory layout of the system.
202
203 Say N here unless you know what you
204
205 config TASK_SIZE
206 hex "Size of user task space" if TASK_
207 default "0x80000000"
208
209 config MB_MANAGER
210 bool "Support for Microblaze Manager"
211 depends on ADVANCED_OPTIONS
212 help
213 This option enables API for configur
214 control register, which is consumed
215 block the break.
216
217 Say N here unless you know what you
218
219 endmenu
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