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575ca288 MS |
1 | # For a description of the syntax of this configuration file, |
2 | # see Documentation/kbuild/kconfig-language.txt. | |
3 | ||
4 | mainmenu "Linux/Microblaze Kernel Configuration" | |
5 | ||
6 | config MICROBLAZE | |
7 | def_bool y | |
95f72d1e | 8 | select HAVE_MEMBLOCK |
2fd7c761 | 9 | select HAVE_FUNCTION_TRACER |
6d9e60ce | 10 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
a0d3e665 | 11 | select HAVE_FUNCTION_GRAPH_TRACER |
7d241ff0 MS |
12 | select HAVE_DYNAMIC_FTRACE |
13 | select HAVE_FTRACE_MCOUNT_RECORD | |
afc26cb3 | 14 | select USB_ARCH_HAS_EHCI |
6fa612b5 | 15 | select ARCH_WANT_OPTIONAL_GPIOLIB |
3540ce82 | 16 | select HAVE_OPROFILE |
2d5973cb | 17 | select HAVE_ARCH_KGDB |
ccfe27d7 MS |
18 | select HAVE_DMA_ATTRS |
19 | select HAVE_DMA_API_DEBUG | |
3540ce82 | 20 | select TRACING_SUPPORT |
575ca288 MS |
21 | |
22 | config SWAP | |
23 | def_bool n | |
24 | ||
25 | config RWSEM_GENERIC_SPINLOCK | |
26 | def_bool y | |
27 | ||
28 | config RWSEM_XCHGADD_ALGORITHM | |
29 | bool | |
30 | ||
31 | config ARCH_HAS_ILOG2_U32 | |
32 | def_bool n | |
33 | ||
34 | config ARCH_HAS_ILOG2_U64 | |
35 | def_bool n | |
36 | ||
37 | config GENERIC_FIND_NEXT_BIT | |
38 | def_bool y | |
39 | ||
40 | config GENERIC_HWEIGHT | |
41 | def_bool y | |
42 | ||
43 | config GENERIC_HARDIRQS | |
44 | def_bool y | |
45 | ||
46 | config GENERIC_IRQ_PROBE | |
47 | def_bool y | |
48 | ||
49 | config GENERIC_CALIBRATE_DELAY | |
50 | def_bool y | |
51 | ||
52 | config GENERIC_TIME | |
53 | def_bool y | |
54 | ||
55 | config GENERIC_TIME_VSYSCALL | |
56 | def_bool n | |
57 | ||
58 | config GENERIC_CLOCKEVENTS | |
59 | def_bool y | |
60 | ||
61 | config GENERIC_HARDIRQS_NO__DO_IRQ | |
62 | def_bool y | |
63 | ||
6fa612b5 MS |
64 | config GENERIC_GPIO |
65 | def_bool y | |
66 | ||
14f87389 RLB |
67 | config GENERIC_CSUM |
68 | def_bool y | |
69 | ||
24b45a12 MS |
70 | config STACKTRACE_SUPPORT |
71 | def_bool y | |
72 | ||
bf2d8096 MS |
73 | config LOCKDEP_SUPPORT |
74 | def_bool y | |
75 | ||
fb5a32dc MS |
76 | config HAVE_LATENCYTOP_SUPPORT |
77 | def_bool y | |
78 | ||
3c5e5672 MS |
79 | config DTC |
80 | def_bool y | |
81 | ||
575ca288 MS |
82 | source "init/Kconfig" |
83 | ||
84 | source "kernel/Kconfig.freezer" | |
85 | ||
86 | source "arch/microblaze/platform/Kconfig.platform" | |
87 | ||
88 | menu "Processor type and features" | |
89 | ||
296e2603 | 90 | source "kernel/time/Kconfig" |
575ca288 MS |
91 | |
92 | source "kernel/Kconfig.preempt" | |
93 | ||
94 | source "kernel/Kconfig.hz" | |
95 | ||
96 | config MMU | |
a116f6d5 MS |
97 | bool "MMU support" |
98 | default n | |
575ca288 MS |
99 | |
100 | config NO_MMU | |
101 | bool | |
102 | depends on !MMU | |
103 | default y | |
104 | ||
105 | comment "Boot options" | |
106 | ||
107 | config CMDLINE_BOOL | |
108 | bool "Default bootloader kernel arguments" | |
109 | ||
110 | config CMDLINE | |
111 | string "Default kernel command string" | |
112 | depends on CMDLINE_BOOL | |
113 | default "console=ttyUL0,115200" | |
114 | help | |
115 | On some architectures there is currently no way for the boot loader | |
116 | to pass arguments to the kernel. For these architectures, you should | |
117 | supply some command-line options at build time by entering them | |
118 | here. | |
119 | ||
120 | config CMDLINE_FORCE | |
121 | bool "Force default kernel command string" | |
122 | depends on CMDLINE_BOOL | |
123 | default n | |
124 | help | |
125 | Set this to have arguments from the default kernel command string | |
126 | override those passed by the boot loader. | |
127 | ||
128 | config OF | |
129 | def_bool y | |
e169cfbe | 130 | select OF_FLATTREE |
575ca288 | 131 | |
575ca288 MS |
132 | config PROC_DEVICETREE |
133 | bool "Support for device tree in /proc" | |
134 | depends on PROC_FS | |
135 | help | |
136 | This option adds a device-tree directory under /proc which contains | |
137 | an image of the device tree that the kernel copies from Open | |
138 | Firmware or other boot firmware. If unsure, say Y here. | |
139 | ||
140 | endmenu | |
141 | ||
a116f6d5 MS |
142 | menu "Advanced setup" |
143 | ||
144 | config ADVANCED_OPTIONS | |
145 | bool "Prompt for advanced kernel configuration options" | |
a116f6d5 MS |
146 | help |
147 | This option will enable prompting for a variety of advanced kernel | |
148 | configuration options. These options can cause the kernel to not | |
149 | work if they are set incorrectly, but can be used to optimize certain | |
150 | aspects of kernel memory management. | |
151 | ||
152 | Unless you know what you are doing, say N here. | |
153 | ||
154 | comment "Default settings for advanced configuration options are used" | |
155 | depends on !ADVANCED_OPTIONS | |
156 | ||
3a0d7a4d MS |
157 | config XILINX_UNCACHED_SHADOW |
158 | bool "Are you using uncached shadow for RAM ?" | |
159 | depends on ADVANCED_OPTIONS && !MMU | |
160 | default n | |
161 | help | |
162 | This is needed to be able to allocate uncachable memory regions. | |
163 | The feature requires the design to define the RAM memory controller | |
164 | window to be twice as large as the actual physical memory. | |
165 | ||
a116f6d5 MS |
166 | config HIGHMEM_START_BOOL |
167 | bool "Set high memory pool address" | |
168 | depends on ADVANCED_OPTIONS && HIGHMEM | |
169 | help | |
170 | This option allows you to set the base address of the kernel virtual | |
171 | area used to map high memory pages. This can be useful in | |
172 | optimizing the layout of kernel virtual memory. | |
173 | ||
174 | Say N here unless you know what you are doing. | |
175 | ||
176 | config HIGHMEM_START | |
177 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
178 | depends on MMU | |
179 | default "0xfe000000" | |
180 | ||
181 | config LOWMEM_SIZE_BOOL | |
182 | bool "Set maximum low memory" | |
b8a84059 | 183 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
184 | help |
185 | This option allows you to set the maximum amount of memory which | |
186 | will be used as "low memory", that is, memory which the kernel can | |
187 | access directly, without having to set up a kernel virtual mapping. | |
188 | This can be useful in optimizing the layout of kernel virtual | |
189 | memory. | |
190 | ||
191 | Say N here unless you know what you are doing. | |
192 | ||
193 | config LOWMEM_SIZE | |
194 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
a116f6d5 MS |
195 | default "0x30000000" |
196 | ||
197 | config KERNEL_START_BOOL | |
198 | bool "Set custom kernel base address" | |
199 | depends on ADVANCED_OPTIONS | |
200 | help | |
201 | This option allows you to set the kernel virtual address at which | |
202 | the kernel will map low memory (the kernel image will be linked at | |
203 | this address). This can be useful in optimizing the virtual memory | |
204 | layout of the system. | |
205 | ||
206 | Say N here unless you know what you are doing. | |
207 | ||
208 | config KERNEL_START | |
209 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
210 | default "0xc0000000" if MMU | |
211 | default KERNEL_BASE_ADDR if !MMU | |
212 | ||
213 | config TASK_SIZE_BOOL | |
214 | bool "Set custom user task size" | |
b8a84059 | 215 | depends on ADVANCED_OPTIONS && MMU |
a116f6d5 MS |
216 | help |
217 | This option allows you to set the amount of virtual address space | |
218 | allocated to user tasks. This can be useful in optimizing the | |
219 | virtual memory layout of the system. | |
220 | ||
221 | Say N here unless you know what you are doing. | |
222 | ||
223 | config TASK_SIZE | |
224 | hex "Size of user task space" if TASK_SIZE_BOOL | |
a116f6d5 MS |
225 | default "0x80000000" |
226 | ||
ba9c4f88 SM |
227 | choice |
228 | prompt "Page size" | |
229 | default MICROBLAZE_4K_PAGES | |
230 | depends on ADVANCED_OPTIONS && !MMU | |
231 | help | |
232 | Select the kernel logical page size. Increasing the page size | |
233 | will reduce software overhead at each page boundary, allow | |
234 | hardware prefetch mechanisms to be more effective, and allow | |
235 | larger dma transfers increasing IO efficiency and reducing | |
236 | overhead. However the utilization of memory will increase. | |
237 | For example, each cached file will using a multiple of the | |
238 | page size to hold its contents and the difference between the | |
239 | end of file and the end of page is wasted. | |
240 | ||
241 | If unsure, choose 4K_PAGES. | |
242 | ||
243 | config MICROBLAZE_4K_PAGES | |
244 | bool "4k page size" | |
245 | ||
246 | config MICROBLAZE_8K_PAGES | |
247 | bool "8k page size" | |
248 | ||
249 | config MICROBLAZE_16K_PAGES | |
250 | bool "16k page size" | |
251 | ||
252 | config MICROBLAZE_32K_PAGES | |
253 | bool "32k page size" | |
254 | ||
255 | endchoice | |
256 | ||
a116f6d5 MS |
257 | endmenu |
258 | ||
575ca288 MS |
259 | source "mm/Kconfig" |
260 | ||
261 | menu "Exectuable file formats" | |
262 | ||
263 | source "fs/Kconfig.binfmt" | |
264 | ||
265 | endmenu | |
266 | ||
a6475c13 MS |
267 | menu "Bus Options" |
268 | ||
269 | config PCI | |
270 | bool "PCI support" | |
271 | ||
272 | config PCI_DOMAINS | |
273 | def_bool PCI | |
274 | ||
275 | config PCI_SYSCALL | |
276 | def_bool PCI | |
277 | ||
733cc218 MS |
278 | config PCI_XILINX |
279 | bool "Xilinx PCI host bridge support" | |
280 | depends on PCI | |
281 | ||
a6475c13 MS |
282 | source "drivers/pci/Kconfig" |
283 | ||
284 | endmenu | |
285 | ||
575ca288 MS |
286 | source "net/Kconfig" |
287 | ||
288 | source "drivers/Kconfig" | |
289 | ||
290 | source "fs/Kconfig" | |
291 | ||
292 | source "arch/microblaze/Kconfig.debug" | |
293 | ||
294 | source "security/Kconfig" | |
295 | ||
296 | source "crypto/Kconfig" | |
297 | ||
298 | source "lib/Kconfig" |