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Michal Simek575ca282009-03-27 14:25:50 +01001# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3
4mainmenu "Linux/Microblaze Kernel Configuration"
5
6config MICROBLAZE
7 def_bool y
Yinghai Lu95f72d12010-07-12 14:36:09 +10008 select HAVE_MEMBLOCK
Michal Simek2fd7c762009-11-16 09:40:14 +01009 select HAVE_FUNCTION_TRACER
Michal Simek6d9e60c2009-11-16 09:55:08 +010010 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
Michal Simeka0d3e662009-11-16 10:32:10 +010011 select HAVE_FUNCTION_GRAPH_TRACER
Michal Simek7d241ff2009-12-10 14:15:44 +010012 select HAVE_DYNAMIC_FTRACE
13 select HAVE_FTRACE_MCOUNT_RECORD
Julie Zhuafc26cb2009-07-27 11:45:32 -060014 select USB_ARCH_HAS_EHCI
Michal Simek6fa612b2009-05-11 15:49:12 +020015 select ARCH_WANT_OPTIONAL_GPIOLIB
John Williams3540ce82009-11-24 20:27:54 +100016 select HAVE_OPROFILE
Michal Simek2d5973c2010-08-03 11:45:08 +020017 select HAVE_ARCH_KGDB
Michal Simekccfe27d2010-01-14 11:21:02 +010018 select HAVE_DMA_ATTRS
19 select HAVE_DMA_API_DEBUG
John Williams3540ce82009-11-24 20:27:54 +100020 select TRACING_SUPPORT
Stephen Rothwellae5bf632010-06-29 12:42:00 +100021 select OF
22 select OF_FLATTREE
Michal Simek575ca282009-03-27 14:25:50 +010023
24config SWAP
25 def_bool n
26
27config RWSEM_GENERIC_SPINLOCK
28 def_bool y
29
30config RWSEM_XCHGADD_ALGORITHM
31 bool
32
33config ARCH_HAS_ILOG2_U32
34 def_bool n
35
36config ARCH_HAS_ILOG2_U64
37 def_bool n
38
39config GENERIC_FIND_NEXT_BIT
40 def_bool y
41
42config GENERIC_HWEIGHT
43 def_bool y
44
45config GENERIC_HARDIRQS
46 def_bool y
47
48config GENERIC_IRQ_PROBE
49 def_bool y
50
51config GENERIC_CALIBRATE_DELAY
52 def_bool y
53
Michal Simek575ca282009-03-27 14:25:50 +010054config GENERIC_TIME_VSYSCALL
55 def_bool n
56
57config GENERIC_CLOCKEVENTS
58 def_bool y
59
60config GENERIC_HARDIRQS_NO__DO_IRQ
61 def_bool y
62
Michal Simek6fa612b2009-05-11 15:49:12 +020063config GENERIC_GPIO
64 def_bool y
65
Remis Lima Baima14f87382009-06-18 19:55:32 +020066config GENERIC_CSUM
67 def_bool y
68
Michal Simek24b45a12009-11-10 15:57:01 +010069config STACKTRACE_SUPPORT
70 def_bool y
71
Michal Simekbf2d8092009-12-10 12:07:02 +010072config LOCKDEP_SUPPORT
73 def_bool y
74
Michal Simekfb5a32d2009-11-16 09:09:47 +010075config HAVE_LATENCYTOP_SUPPORT
76 def_bool y
77
Michal Simek575ca282009-03-27 14:25:50 +010078source "init/Kconfig"
79
80source "kernel/Kconfig.freezer"
81
82source "arch/microblaze/platform/Kconfig.platform"
83
84menu "Processor type and features"
85
Michal Simek296e2602010-01-12 11:05:49 +010086source "kernel/time/Kconfig"
Michal Simek575ca282009-03-27 14:25:50 +010087
88source "kernel/Kconfig.preempt"
89
90source "kernel/Kconfig.hz"
91
92config MMU
Michal Simeka116f6d2009-05-26 16:30:31 +020093 bool "MMU support"
94 default n
Michal Simek575ca282009-03-27 14:25:50 +010095
96config NO_MMU
97 bool
98 depends on !MMU
99 default y
100
101comment "Boot options"
102
103config CMDLINE_BOOL
104 bool "Default bootloader kernel arguments"
105
106config CMDLINE
107 string "Default kernel command string"
108 depends on CMDLINE_BOOL
109 default "console=ttyUL0,115200"
110 help
111 On some architectures there is currently no way for the boot loader
112 to pass arguments to the kernel. For these architectures, you should
113 supply some command-line options at build time by entering them
114 here.
115
116config CMDLINE_FORCE
117 bool "Force default kernel command string"
118 depends on CMDLINE_BOOL
119 default n
120 help
121 Set this to have arguments from the default kernel command string
122 override those passed by the boot loader.
123
Michal Simek575ca282009-03-27 14:25:50 +0100124endmenu
125
Michal Simeka116f6d2009-05-26 16:30:31 +0200126menu "Advanced setup"
127
128config ADVANCED_OPTIONS
129 bool "Prompt for advanced kernel configuration options"
Michal Simeka116f6d2009-05-26 16:30:31 +0200130 help
131 This option will enable prompting for a variety of advanced kernel
132 configuration options. These options can cause the kernel to not
133 work if they are set incorrectly, but can be used to optimize certain
134 aspects of kernel memory management.
135
136 Unless you know what you are doing, say N here.
137
138comment "Default settings for advanced configuration options are used"
139 depends on !ADVANCED_OPTIONS
140
Michal Simek3a0d7a42010-02-22 12:16:08 +0100141config XILINX_UNCACHED_SHADOW
142 bool "Are you using uncached shadow for RAM ?"
143 depends on ADVANCED_OPTIONS && !MMU
144 default n
145 help
146 This is needed to be able to allocate uncachable memory regions.
147 The feature requires the design to define the RAM memory controller
148 window to be twice as large as the actual physical memory.
149
Michal Simeka116f6d2009-05-26 16:30:31 +0200150config HIGHMEM_START_BOOL
151 bool "Set high memory pool address"
152 depends on ADVANCED_OPTIONS && HIGHMEM
153 help
154 This option allows you to set the base address of the kernel virtual
155 area used to map high memory pages. This can be useful in
156 optimizing the layout of kernel virtual memory.
157
158 Say N here unless you know what you are doing.
159
160config HIGHMEM_START
161 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
162 depends on MMU
163 default "0xfe000000"
164
165config LOWMEM_SIZE_BOOL
166 bool "Set maximum low memory"
Michal Simekb8a84052010-02-22 11:33:07 +0100167 depends on ADVANCED_OPTIONS && MMU
Michal Simeka116f6d2009-05-26 16:30:31 +0200168 help
169 This option allows you to set the maximum amount of memory which
170 will be used as "low memory", that is, memory which the kernel can
171 access directly, without having to set up a kernel virtual mapping.
172 This can be useful in optimizing the layout of kernel virtual
173 memory.
174
175 Say N here unless you know what you are doing.
176
177config LOWMEM_SIZE
178 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
Michal Simeka116f6d2009-05-26 16:30:31 +0200179 default "0x30000000"
180
181config KERNEL_START_BOOL
182 bool "Set custom kernel base address"
183 depends on ADVANCED_OPTIONS
184 help
185 This option allows you to set the kernel virtual address at which
186 the kernel will map low memory (the kernel image will be linked at
187 this address). This can be useful in optimizing the virtual memory
188 layout of the system.
189
190 Say N here unless you know what you are doing.
191
192config KERNEL_START
193 hex "Virtual address of kernel base" if KERNEL_START_BOOL
194 default "0xc0000000" if MMU
195 default KERNEL_BASE_ADDR if !MMU
196
197config TASK_SIZE_BOOL
198 bool "Set custom user task size"
Michal Simekb8a84052010-02-22 11:33:07 +0100199 depends on ADVANCED_OPTIONS && MMU
Michal Simeka116f6d2009-05-26 16:30:31 +0200200 help
201 This option allows you to set the amount of virtual address space
202 allocated to user tasks. This can be useful in optimizing the
203 virtual memory layout of the system.
204
205 Say N here unless you know what you are doing.
206
207config TASK_SIZE
208 hex "Size of user task space" if TASK_SIZE_BOOL
Michal Simeka116f6d2009-05-26 16:30:31 +0200209 default "0x80000000"
210
Steven J. Magnaniba9c4f82010-05-13 10:48:27 -0500211choice
212 prompt "Page size"
213 default MICROBLAZE_4K_PAGES
214 depends on ADVANCED_OPTIONS && !MMU
215 help
216 Select the kernel logical page size. Increasing the page size
217 will reduce software overhead at each page boundary, allow
218 hardware prefetch mechanisms to be more effective, and allow
219 larger dma transfers increasing IO efficiency and reducing
220 overhead. However the utilization of memory will increase.
221 For example, each cached file will using a multiple of the
222 page size to hold its contents and the difference between the
223 end of file and the end of page is wasted.
224
225 If unsure, choose 4K_PAGES.
226
227config MICROBLAZE_4K_PAGES
228 bool "4k page size"
229
230config MICROBLAZE_8K_PAGES
231 bool "8k page size"
232
233config MICROBLAZE_16K_PAGES
234 bool "16k page size"
235
236config MICROBLAZE_32K_PAGES
237 bool "32k page size"
238
239endchoice
240
Michal Simeka116f6d2009-05-26 16:30:31 +0200241endmenu
242
Michal Simek575ca282009-03-27 14:25:50 +0100243source "mm/Kconfig"
244
245menu "Exectuable file formats"
246
247source "fs/Kconfig.binfmt"
248
249endmenu
250
Michal Simeka6475c12010-01-18 15:27:10 +0100251menu "Bus Options"
252
253config PCI
254 bool "PCI support"
255
256config PCI_DOMAINS
257 def_bool PCI
258
259config PCI_SYSCALL
260 def_bool PCI
261
Michal Simek733cc212010-01-18 15:27:11 +0100262config PCI_XILINX
263 bool "Xilinx PCI host bridge support"
264 depends on PCI
265
Michal Simeka6475c12010-01-18 15:27:10 +0100266source "drivers/pci/Kconfig"
267
268endmenu
269
Michal Simek575ca282009-03-27 14:25:50 +0100270source "net/Kconfig"
271
272source "drivers/Kconfig"
273
274source "fs/Kconfig"
275
276source "arch/microblaze/Kconfig.debug"
277
278source "security/Kconfig"
279
280source "crypto/Kconfig"
281
282source "lib/Kconfig"