Commit | Line | Data |
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ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
575ca288 MS |
2 | config MICROBLAZE |
3 | def_bool y | |
942fa985 | 4 | select ARCH_32BIT_OFF_T |
17c46a6a | 5 | select ARCH_NO_SWAP |
d3b9f659 | 6 | select ARCH_HAS_DMA_PREP_COHERENT |
957e3fac | 7 | select ARCH_HAS_GCOV_PROFILE_ALL |
5411ad27 CH |
8 | select ARCH_HAS_SYNC_DMA_FOR_CPU |
9 | select ARCH_HAS_SYNC_DMA_FOR_DEVICE | |
355f65a3 | 10 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c1d7e01d | 11 | select ARCH_WANT_IPC_PARSE_VERSION |
10916706 | 12 | select BUILDTIME_TABLE_SORT |
bb0eb050 | 13 | select TIMER_OF |
25213388 MS |
14 | select CLONE_BACKWARDS3 |
15 | select COMMON_CLK | |
05cdf457 | 16 | select DMA_DIRECT_REMAP |
25213388 | 17 | select GENERIC_ATOMIC64 |
25213388 MS |
18 | select GENERIC_CPU_DEVICES |
19 | select GENERIC_IDLE_POLL_SETUP | |
b6e31629 | 20 | select GENERIC_IRQ_PROBE |
9d61c18b | 21 | select GENERIC_IRQ_SHOW |
1b34d160 | 22 | select GENERIC_PCI_IOMAP |
839396ab | 23 | select GENERIC_SCHED_CLOCK |
fcbfe812 | 24 | select HAS_IOPORT if PCI |
7b13277b | 25 | select HAVE_ARCH_HASH |
25213388 | 26 | select HAVE_ARCH_KGDB |
282a181b | 27 | select HAVE_ARCH_SECCOMP |
25213388 | 28 | select HAVE_DEBUG_KMEMLEAK |
2602276d | 29 | select HAVE_DMA_CONTIGUOUS |
25213388 MS |
30 | select HAVE_DYNAMIC_FTRACE |
31 | select HAVE_FTRACE_MCOUNT_RECORD | |
32 | select HAVE_FUNCTION_GRAPH_TRACER | |
25213388 | 33 | select HAVE_FUNCTION_TRACER |
eb01d42a | 34 | select HAVE_PCI |
25213388 | 35 | select IRQ_DOMAIN |
0547dc78 | 36 | select XILINX_INTC |
786d35d4 | 37 | select MODULES_USE_ELF_RELA |
25213388 MS |
38 | select OF |
39 | select OF_EARLY_FLATTREE | |
2eac9c2d | 40 | select PCI_DOMAINS_GENERIC if PCI |
20f1b79d | 41 | select PCI_SYSCALL if PCI |
fff7fb0b | 42 | select CPU_NO_EFFICIENT_FFS |
05cdf457 | 43 | select MMU_GATHER_NO_RANGE |
6bf8be7f | 44 | select SPARSE_IRQ |
63703f37 | 45 | select ZONE_DMA |
4aae683f | 46 | select TRACE_IRQFLAGS_SUPPORT |
1e364921 | 47 | select GENERIC_IRQ_MULTI_HANDLER |
575ca288 | 48 | |
206d3642 BM |
49 | # Endianness selection |
50 | choice | |
51 | prompt "Endianness selection" | |
428dbf15 | 52 | default CPU_LITTLE_ENDIAN |
206d3642 BM |
53 | help |
54 | microblaze architectures can be configured for either little or | |
55 | big endian formats. Be sure to select the appropriate mode. | |
56 | ||
57 | config CPU_BIG_ENDIAN | |
58 | bool "Big endian" | |
59 | ||
60 | config CPU_LITTLE_ENDIAN | |
61 | bool "Little endian" | |
62 | ||
63 | endchoice | |
64 | ||
575ca288 MS |
65 | config ARCH_HAS_ILOG2_U32 |
66 | def_bool n | |
67 | ||
68 | config ARCH_HAS_ILOG2_U64 | |
69 | def_bool n | |
70 | ||
575ca288 MS |
71 | config GENERIC_HWEIGHT |
72 | def_bool y | |
73 | ||
575ca288 MS |
74 | config GENERIC_CALIBRATE_DELAY |
75 | def_bool y | |
76 | ||
14f87389 RLB |
77 | config GENERIC_CSUM |
78 | def_bool y | |
79 | ||
24b45a12 MS |
80 | config STACKTRACE_SUPPORT |
81 | def_bool y | |
82 | ||
bf2d8096 MS |
83 | config LOCKDEP_SUPPORT |
84 | def_bool y | |
85 | ||
c24cf712 | 86 | source "arch/microblaze/Kconfig.platform" |
575ca288 MS |
87 | |
88 | menu "Processor type and features" | |
89 | ||
575ca288 MS |
90 | source "kernel/Kconfig.hz" |
91 | ||
92 | config MMU | |
05cdf457 | 93 | def_bool y |
575ca288 | 94 | |
575ca288 MS |
95 | comment "Boot options" |
96 | ||
97 | config CMDLINE_BOOL | |
98 | bool "Default bootloader kernel arguments" | |
99 | ||
100 | config CMDLINE | |
101 | string "Default kernel command string" | |
102 | depends on CMDLINE_BOOL | |
103 | default "console=ttyUL0,115200" | |
104 | help | |
105 | On some architectures there is currently no way for the boot loader | |
106 | to pass arguments to the kernel. For these architectures, you should | |
107 | supply some command-line options at build time by entering them | |
108 | here. | |
109 | ||
110 | config CMDLINE_FORCE | |
111 | bool "Force default kernel command string" | |
112 | depends on CMDLINE_BOOL | |
113 | default n | |
114 | help | |
115 | Set this to have arguments from the default kernel command string | |
116 | override those passed by the boot loader. | |
117 | ||
575ca288 MS |
118 | endmenu |
119 | ||
b408e2c2 | 120 | menu "Kernel features" |
a116f6d5 | 121 | |
4cbbbb43 MS |
122 | config NR_CPUS |
123 | int | |
124 | default "1" | |
125 | ||
a116f6d5 MS |
126 | config ADVANCED_OPTIONS |
127 | bool "Prompt for advanced kernel configuration options" | |
a116f6d5 MS |
128 | help |
129 | This option will enable prompting for a variety of advanced kernel | |
130 | configuration options. These options can cause the kernel to not | |
131 | work if they are set incorrectly, but can be used to optimize certain | |
132 | aspects of kernel memory management. | |
133 | ||
134 | Unless you know what you are doing, say N here. | |
135 | ||
136 | comment "Default settings for advanced configuration options are used" | |
137 | depends on !ADVANCED_OPTIONS | |
138 | ||
2f2f371f MS |
139 | config HIGHMEM |
140 | bool "High memory support" | |
7ac1b26b | 141 | select KMAP_LOCAL |
a116f6d5 | 142 | help |
2f2f371f MS |
143 | The address space of Microblaze processors is only 4 Gigabytes large |
144 | and it has to accommodate user address space, kernel address | |
145 | space as well as some memory mapped IO. That means that, if you | |
146 | have a large amount of physical memory and/or IO, not all of the | |
147 | memory can be "permanently mapped" by the kernel. The physical | |
148 | memory that is not permanently mapped is called "high memory". | |
a116f6d5 | 149 | |
2f2f371f | 150 | If unsure, say n. |
a116f6d5 MS |
151 | |
152 | config LOWMEM_SIZE_BOOL | |
153 | bool "Set maximum low memory" | |
05cdf457 | 154 | depends on ADVANCED_OPTIONS |
a116f6d5 MS |
155 | help |
156 | This option allows you to set the maximum amount of memory which | |
157 | will be used as "low memory", that is, memory which the kernel can | |
158 | access directly, without having to set up a kernel virtual mapping. | |
159 | This can be useful in optimizing the layout of kernel virtual | |
160 | memory. | |
161 | ||
162 | Say N here unless you know what you are doing. | |
163 | ||
164 | config LOWMEM_SIZE | |
165 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
a116f6d5 MS |
166 | default "0x30000000" |
167 | ||
0b9b0200 MS |
168 | config MANUAL_RESET_VECTOR |
169 | hex "Microblaze reset vector address setup" | |
170 | default "0x0" | |
171 | help | |
172 | Set this option to have the kernel override the CPU Reset vector. | |
173 | If zero, no change will be made to the MicroBlaze reset vector at | |
174 | address 0x0. | |
175 | If non-zero, a jump instruction to this address, will be written | |
176 | to the reset vector at address 0x0. | |
177 | If you are unsure, set it to default value 0x0. | |
178 | ||
a116f6d5 MS |
179 | config KERNEL_START_BOOL |
180 | bool "Set custom kernel base address" | |
181 | depends on ADVANCED_OPTIONS | |
182 | help | |
183 | This option allows you to set the kernel virtual address at which | |
184 | the kernel will map low memory (the kernel image will be linked at | |
185 | this address). This can be useful in optimizing the virtual memory | |
186 | layout of the system. | |
187 | ||
188 | Say N here unless you know what you are doing. | |
189 | ||
190 | config KERNEL_START | |
191 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
05cdf457 | 192 | default "0xc0000000" |
a116f6d5 MS |
193 | |
194 | config TASK_SIZE_BOOL | |
195 | bool "Set custom user task size" | |
05cdf457 | 196 | depends on ADVANCED_OPTIONS |
a116f6d5 MS |
197 | help |
198 | This option allows you to set the amount of virtual address space | |
199 | allocated to user tasks. This can be useful in optimizing the | |
200 | virtual memory layout of the system. | |
201 | ||
202 | Say N here unless you know what you are doing. | |
203 | ||
204 | config TASK_SIZE | |
205 | hex "Size of user task space" if TASK_SIZE_BOOL | |
a116f6d5 MS |
206 | default "0x80000000" |
207 | ||
a5e3aaa6 ADK |
208 | config MB_MANAGER |
209 | bool "Support for Microblaze Manager" | |
210 | depends on ADVANCED_OPTIONS | |
211 | help | |
212 | This option enables API for configuring the MicroBlaze manager | |
213 | control register, which is consumed by the break handler to | |
214 | block the break. | |
215 | ||
216 | Say N here unless you know what you are doing. | |
217 | ||
575ca288 | 218 | endmenu |