tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux/M32R Kernel Configuration"
7
8config M32R
9 bool
10 default y
11 select HAVE_IDE
12 select HAVE_OPROFILE
13
14config SBUS
15 bool
16
17config GENERIC_ISA_DMA
18 bool
19 default y
20
21config ZONE_DMA
22 bool
23 default y
24
25config GENERIC_HARDIRQS
26 bool
27 default y
28
29config GENERIC_IRQ_PROBE
30 bool
31 default y
32
33config NO_IOPORT
34 def_bool y
35
36config NO_DMA
37 def_bool y
38
39config ARCH_SUPPORTS_AOUT
40 def_bool y
41
42config HZ
43 int
44 default 100
45
46source "init/Kconfig"
47
48
49menu "Processor type and features"
50
51choice
52 prompt "Platform Type"
53 default PLAT_MAPPI
54
55config PLAT_MAPPI
56 bool "Mappi-I"
57 help
58 The Mappi-I is an FPGA board for SOC (System-On-a-Chip) prototyping.
59 You can operate a Linux system on this board by using an M32R
60 softmacro core, which is a fully-synthesizable functional model
61 described in Verilog-HDL.
62
63 The Mappi-I board was the first platform, which had been used
64 to port and develop a Linux system for the M32R processor.
65 Currently, the Mappi-II, an heir to the Mappi-I, is available.
66
67config PLAT_USRV
68 bool "uServer"
69 select PLAT_HAS_INT1ICU
70
71config PLAT_M32700UT
72 bool "M32700UT"
73 select PLAT_HAS_INT0ICU
74 select PLAT_HAS_INT1ICU
75 select PLAT_HAS_INT2ICU
76 help
77 The M3T-M32700UT is an evaluation board based on uT-Engine
78 specification. This board has an M32700 (Chaos) evaluation chip.
79 You can say Y for SMP, because the M32700 is a single chip
80 multiprocessor.
81
82config PLAT_OPSPUT
83 bool "OPSPUT"
84 select PLAT_HAS_INT0ICU
85 select PLAT_HAS_INT1ICU
86 select PLAT_HAS_INT2ICU
87 help
88 The OPSPUT is an evaluation board based on uT-Engine
89 specification. This board has a OPSP-REP chip.
90
91config PLAT_OAKS32R
92 bool "OAKS32R"
93 help
94 The OAKS32R is a tiny, inexpensive evaluation board.
95 Please note that if you say Y here and choose chip "M32102",
96 say N for MMU and select a no-MMU version kernel, otherwise
97 a kernel with MMU support will not work, because the M32102
98 is a microcontroller for embedded systems and it has no MMU.
99
100config PLAT_MAPPI2
101 bool "Mappi-II(M3A-ZA36/M3A-ZA52)"
102
103config PLAT_MAPPI3
104 bool "Mappi-III(M3A-2170)"
105
106config PLAT_M32104UT
107 bool "M32104UT"
108 select PLAT_HAS_INT1ICU
109 help
110 The M3T-M32104UT is an reference board based on uT-Engine
111 specification. This board has a M32104 chip.
112
113endchoice
114
115choice
116 prompt "Processor family"
117 default CHIP_M32700
118
119config CHIP_M32700
120 bool "M32700 (Chaos)"
121
122config CHIP_M32102
123 bool "M32102"
124
125config CHIP_M32104
126 bool "M32104"
127 depends on PLAT_M32104UT
128
129config CHIP_VDEC2
130 bool "VDEC2"
131
132config CHIP_OPSP
133 bool "OPSP"
134
135endchoice
136
137config MMU
138 bool "Support for memory management hardware"
139 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
140 default y
141
142config TLB_ENTRIES
143 int "TLB Entries"
144 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
145 default 32 if CHIP_M32700 || CHIP_OPSP
146 default 16 if CHIP_VDEC2
147
148
149config ISA_M32R
150 bool
151 depends on CHIP_M32102 || CHIP_M32104
152 default y
153
154config ISA_M32R2
155 bool
156 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
157 default y
158
159config ISA_DSP_LEVEL2
160 bool
161 depends on CHIP_M32700 || CHIP_OPSP
162 default y
163
164config ISA_DUAL_ISSUE
165 bool
166 depends on CHIP_M32700 || CHIP_OPSP
167 default y
168
169config PLAT_HAS_INT0ICU
170 bool
171 default n
172
173config PLAT_HAS_INT1ICU
174 bool
175 default n
176
177config PLAT_HAS_INT2ICU
178 bool
179 default n
180
181config BUS_CLOCK
182 int "Bus Clock [Hz] (integer)"
183 default "70000000" if PLAT_MAPPI
184 default "25000000" if PLAT_USRV
185 default "50000000" if PLAT_MAPPI3
186 default "50000000" if PLAT_M32700UT
187 default "50000000" if PLAT_OPSPUT
188 default "54000000" if PLAT_M32104UT
189 default "33333333" if PLAT_OAKS32R
190 default "20000000" if PLAT_MAPPI2
191
192config TIMER_DIVIDE
193 int "Timer divider (integer)"
194 default "128"
195
196config CPU_LITTLE_ENDIAN
197 bool "Generate little endian code"
198 default n
199
200config MEMORY_START
201 hex "Physical memory start address (hex)"
202 default "08000000" if PLAT_MAPPI || PLAT_MAPPI2 || PLAT_MAPPI3
203 default "08000000" if PLAT_USRV
204 default "08000000" if PLAT_M32700UT
205 default "08000000" if PLAT_OPSPUT
206 default "04000000" if PLAT_M32104UT
207 default "01000000" if PLAT_OAKS32R
208
209config MEMORY_SIZE
210 hex "Physical memory size (hex)"
211 default "08000000" if PLAT_MAPPI3
212 default "04000000" if PLAT_MAPPI || PLAT_MAPPI2
213 default "02000000" if PLAT_USRV
214 default "01000000" if PLAT_M32700UT
215 default "01000000" if PLAT_OPSPUT
216 default "01000000" if PLAT_M32104UT
217 default "00800000" if PLAT_OAKS32R
218
219config NOHIGHMEM
220 bool
221 default y
222
223config ARCH_DISCONTIGMEM_ENABLE
224 bool "Internal RAM Support"
225 depends on CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104
226 default y
227
228source "mm/Kconfig"
229
230config IRAM_START
231 hex "Internal memory start address (hex)"
232 default "00f00000" if !CHIP_M32104
233 default "00700000" if CHIP_M32104
234 depends on (CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104) && DISCONTIGMEM
235
236config IRAM_SIZE
237 hex "Internal memory size (hex)"
238 depends on (CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104) && DISCONTIGMEM
239 default "00080000" if CHIP_M32700
240 default "00010000" if CHIP_M32102 || CHIP_OPSP || CHIP_M32104
241 default "00008000" if CHIP_VDEC2
242
243#
244# Define implied options from the CPU selection here
245#
246
247config GENERIC_LOCKBREAK
248 bool
249 default y
250 depends on SMP && PREEMPT
251
252config RWSEM_GENERIC_SPINLOCK
253 bool
254 depends on M32R
255 default y
256
257config RWSEM_XCHGADD_ALGORITHM
258 bool
259 default n
260
261config ARCH_HAS_ILOG2_U32
262 bool
263 default n
264
265config ARCH_HAS_ILOG2_U64
266 bool
267 default n
268
269config GENERIC_FIND_NEXT_BIT
270 bool
271 default y
272
273config GENERIC_HWEIGHT
274 bool
275 default y
276
277config GENERIC_CALIBRATE_DELAY
278 bool
279 default y
280
281config SCHED_NO_NO_OMIT_FRAME_POINTER
282 bool
283 default y
284
285config PREEMPT
286 bool "Preemptible Kernel"
287 help
288 This option reduces the latency of the kernel when reacting to
289 real-time or interactive events by allowing a low priority process to
290 be preempted even if it is in kernel mode executing a system call.
291 This allows applications to run more reliably even when the system is
292 under load.
293
294 Say Y here if you are building a kernel for a desktop, embedded
295 or real-time system. Say N if you are unsure.
296
297config SMP
298 bool "Symmetric multi-processing support"
299 ---help---
300 This enables support for systems with more than one CPU. If you have
301 a system with only one CPU, like most personal computers, say N. If
302 you have a system with more than one CPU, say Y.
303
304 If you say N here, the kernel will run on single and multiprocessor
305 machines, but will use only one CPU of a multiprocessor machine. If
306 you say Y here, the kernel will run on many, but not all,
307 singleprocessor machines. On a singleprocessor machine, the kernel
308 will run faster if you say N here.
309
310 People using multiprocessor machines who say Y here should also say
311 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
312 Management" code will be disabled if you say Y here.
313
314 See also the SMP-HOWTO available at
315 <http://www.linuxdoc.org/docs.html#howto>.
316
317 If you don't know what to do here, say N.
318
319config CHIP_M32700_TS1
320 bool "Workaround code for the M32700 TS1 chip's bug"
321 depends on (CHIP_M32700 && SMP)
322 default n
323
324config NR_CPUS
325 int "Maximum number of CPUs (2-32)"
326 range 2 32
327 depends on SMP
328 default "2"
329 help
330 This allows you to specify the maximum number of CPUs which this
331 kernel will support. The maximum supported value is 32 and the
332 minimum value which makes sense is 2.
333
334 This is purely to save memory - each supported CPU adds
335 approximately eight kilobytes to the kernel image.
336
337# Common NUMA Features
338config NUMA
339 bool "Numa Memory Allocation Support"
340 depends on SMP && BROKEN
341 default n
342
343config NODES_SHIFT
344 int
345 default "1"
346 depends on NEED_MULTIPLE_NODES
347
348# turning this on wastes a bunch of space.
349# Summit needs it only when NUMA is on
350config BOOT_IOREMAP
351 bool
352 depends on NUMA
353 default n
354
355endmenu
356
357
358menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
359
360config PCI
361 bool "PCI support"
362 depends on BROKEN
363 default n
364 help
365 Find out whether you have a PCI motherboard. PCI is the name of a
366 bus system, i.e. the way the CPU talks to the other stuff inside
367 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
368 VESA. If you have PCI, say Y, otherwise N.
369
370choice
371 prompt "PCI access mode"
372 depends on PCI
373 default PCI_GOANY
374
375config PCI_GOBIOS
376 bool "BIOS"
377 ---help---
378 On PCI systems, the BIOS can be used to detect the PCI devices and
379 determine their configuration. However, some old PCI motherboards
380 have BIOS bugs and may crash if this is done. Also, some embedded
381 PCI-based systems don't have any BIOS at all. Linux can also try to
382 detect the PCI hardware directly without using the BIOS.
383
384 With this option, you can specify how Linux should detect the PCI
385 devices. If you choose "BIOS", the BIOS will be used, if you choose
386 "Direct", the BIOS won't be used, and if you choose "Any", the
387 kernel will try the direct access method and falls back to the BIOS
388 if that doesn't work. If unsure, go with the default, which is
389 "Any".
390
391config PCI_GODIRECT
392 bool "Direct"
393
394config PCI_GOANY
395 bool "Any"
396
397endchoice
398
399config PCI_BIOS
400 bool
401 depends on PCI && (PCI_GOBIOS || PCI_GOANY)
402 default y
403
404config PCI_DIRECT
405 bool
406 depends on PCI && (PCI_GODIRECT || PCI_GOANY)
407 default y
408
409source "drivers/pci/Kconfig"
410
411config ISA
412 bool "ISA support"
413 help
414 Find out whether you have ISA slots on your motherboard. ISA is the
415 name of a bus system, i.e. the way the CPU talks to the other stuff
416 inside your box. If you have ISA, say Y, otherwise N.
417
418source "drivers/pcmcia/Kconfig"
419
420source "drivers/pci/hotplug/Kconfig"
421
422endmenu
423
424
425menu "Executable file formats"
426
427source "fs/Kconfig.binfmt"
428
429endmenu
430
431source "net/Kconfig"
432
433source "drivers/Kconfig"
434
435source "fs/Kconfig"
436
437source "arch/m32r/Kconfig.debug"
438
439source "security/Kconfig"
440
441source "crypto/Kconfig"
442
443source "lib/Kconfig"