2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux/M32R Kernel Configuration"
15 config GENERIC_ISA_DMA
23 config GENERIC_HARDIRQS
27 config GENERIC_IRQ_PROBE
40 menu "Processor type and features"
43 prompt "Platform Type"
49 The Mappi-I is an FPGA board for SOC (System-On-a-Chip) prototyping.
50 You can operate a Linux system on this board by using an M32R
51 softmacro core, which is a fully-synthesizable functional model
52 described in Verilog-HDL.
54 The Mappi-I board was the first platform, which had been used
55 to port and develop a Linux system for the M32R processor.
56 Currently, the Mappi-II, an heir to the Mappi-I, is available.
64 The M3T-M32700UT is an evaluation board based on uT-Engine
65 specification. This board has an M32700 (Chaos) evaluation chip.
66 You can say Y for SMP, because the M32700 is a single chip
72 The OPSPUT is an evaluation board based on uT-Engine
73 specification. This board has a OPSP-REP chip.
78 The OAKS32R is a tiny, inexpensive evaluation board.
79 Please note that if you say Y here and choose chip "M32102",
80 say N for MMU and select a no-MMU version kernel, otherwise
81 a kernel with MMU support will not work, because the M32102
82 is a microcontroller for embedded systems and it has no MMU.
85 bool "Mappi-II(M3A-ZA36/M3A-ZA52)"
88 bool "Mappi-III(M3A-2170)"
93 The M3T-M32104UT is an reference board based on uT-Engine
94 specification. This board has a M32104 chip.
99 prompt "Processor family"
103 bool "M32700 (Chaos)"
110 depends on PLAT_M32104UT
121 bool "Support for memory management hardware"
122 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
127 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
128 default 32 if CHIP_M32700 || CHIP_OPSP
129 default 16 if CHIP_VDEC2
134 depends on CHIP_M32102 || CHIP_M32104
139 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
142 config ISA_DSP_LEVEL2
144 depends on CHIP_M32700 || CHIP_OPSP
147 config ISA_DUAL_ISSUE
149 depends on CHIP_M32700 || CHIP_OPSP
153 int "Bus Clock [Hz] (integer)"
154 default "70000000" if PLAT_MAPPI
155 default "25000000" if PLAT_USRV
156 default "50000000" if PLAT_MAPPI3
157 default "50000000" if PLAT_M32700UT
158 default "50000000" if PLAT_OPSPUT
159 default "54000000" if PLAT_M32104UT
160 default "33333333" if PLAT_OAKS32R
161 default "20000000" if PLAT_MAPPI2
164 int "Timer divider (integer)"
167 config CPU_LITTLE_ENDIAN
168 bool "Generate little endian code"
172 hex "Physical memory start address (hex)"
173 default "08000000" if PLAT_MAPPI || PLAT_MAPPI2 || PLAT_MAPPI3
174 default "08000000" if PLAT_USRV
175 default "08000000" if PLAT_M32700UT
176 default "08000000" if PLAT_OPSPUT
177 default "04000000" if PLAT_M32104UT
178 default "01000000" if PLAT_OAKS32R
181 hex "Physical memory size (hex)"
182 default "08000000" if PLAT_MAPPI3
183 default "04000000" if PLAT_MAPPI || PLAT_MAPPI2
184 default "02000000" if PLAT_USRV
185 default "01000000" if PLAT_M32700UT
186 default "01000000" if PLAT_OPSPUT
187 default "01000000" if PLAT_M32104UT
188 default "00800000" if PLAT_OAKS32R
194 config ARCH_DISCONTIGMEM_ENABLE
195 bool "Internal RAM Support"
196 depends on CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104
202 hex "Internal memory start address (hex)"
203 default "00f00000" if !CHIP_M32104
204 default "00700000" if CHIP_M32104
205 depends on (CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104) && DISCONTIGMEM
208 hex "Internal memory size (hex)"
209 depends on (CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104) && DISCONTIGMEM
210 default "00080000" if CHIP_M32700
211 default "00010000" if CHIP_M32102 || CHIP_OPSP || CHIP_M32104
212 default "00008000" if CHIP_VDEC2
215 # Define implied options from the CPU selection here
218 config RWSEM_GENERIC_SPINLOCK
223 config RWSEM_XCHGADD_ALGORITHM
227 config ARCH_HAS_ILOG2_U32
231 config ARCH_HAS_ILOG2_U64
235 config GENERIC_FIND_NEXT_BIT
239 config GENERIC_HWEIGHT
243 config GENERIC_CALIBRATE_DELAY
247 config SCHED_NO_NO_OMIT_FRAME_POINTER
252 bool "Preemptible Kernel"
254 This option reduces the latency of the kernel when reacting to
255 real-time or interactive events by allowing a low priority process to
256 be preempted even if it is in kernel mode executing a system call.
257 This allows applications to run more reliably even when the system is
260 Say Y here if you are building a kernel for a desktop, embedded
261 or real-time system. Say N if you are unsure.
264 bool "Symmetric multi-processing support"
266 This enables support for systems with more than one CPU. If you have
267 a system with only one CPU, like most personal computers, say N. If
268 you have a system with more than one CPU, say Y.
270 If you say N here, the kernel will run on single and multiprocessor
271 machines, but will use only one CPU of a multiprocessor machine. If
272 you say Y here, the kernel will run on many, but not all,
273 singleprocessor machines. On a singleprocessor machine, the kernel
274 will run faster if you say N here.
276 People using multiprocessor machines who say Y here should also say
277 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
278 Management" code will be disabled if you say Y here.
280 See also the <file:Documentation/smp.txt>,
281 and the SMP-HOWTO available at
282 <http://www.linuxdoc.org/docs.html#howto>.
284 If you don't know what to do here, say N.
286 config CHIP_M32700_TS1
287 bool "Workaround code for the M32700 TS1 chip's bug"
288 depends on (CHIP_M32700 && SMP)
292 int "Maximum number of CPUs (2-32)"
297 This allows you to specify the maximum number of CPUs which this
298 kernel will support. The maximum supported value is 32 and the
299 minimum value which makes sense is 2.
301 This is purely to save memory - each supported CPU adds
302 approximately eight kilobytes to the kernel image.
304 # Common NUMA Features
306 bool "Numa Memory Allocation Support"
307 depends on SMP && BROKEN
313 depends on NEED_MULTIPLE_NODES
315 # turning this on wastes a bunch of space.
316 # Summit needs it only when NUMA is on
325 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
332 Find out whether you have a PCI motherboard. PCI is the name of a
333 bus system, i.e. the way the CPU talks to the other stuff inside
334 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
335 VESA. If you have PCI, say Y, otherwise N.
337 The PCI-HOWTO, available from
338 <http://www.linuxdoc.org/docs.html#howto>, contains valuable
339 information about which PCI hardware does work under Linux and which
343 prompt "PCI access mode"
350 On PCI systems, the BIOS can be used to detect the PCI devices and
351 determine their configuration. However, some old PCI motherboards
352 have BIOS bugs and may crash if this is done. Also, some embedded
353 PCI-based systems don't have any BIOS at all. Linux can also try to
354 detect the PCI hardware directly without using the BIOS.
356 With this option, you can specify how Linux should detect the PCI
357 devices. If you choose "BIOS", the BIOS will be used, if you choose
358 "Direct", the BIOS won't be used, and if you choose "Any", the
359 kernel will try the direct access method and falls back to the BIOS
360 if that doesn't work. If unsure, go with the default, which is
373 depends on PCI && (PCI_GOBIOS || PCI_GOANY)
378 depends on PCI && (PCI_GODIRECT || PCI_GOANY)
381 source "drivers/pci/Kconfig"
386 Find out whether you have ISA slots on your motherboard. ISA is the
387 name of a bus system, i.e. the way the CPU talks to the other stuff
388 inside your box. If you have ISA, say Y, otherwise N.
390 source "drivers/pcmcia/Kconfig"
392 source "drivers/pci/hotplug/Kconfig"
397 menu "Executable file formats"
399 source "fs/Kconfig.binfmt"
405 source "drivers/Kconfig"
409 source "arch/m32r/oprofile/Kconfig"
411 source "arch/m32r/Kconfig.debug"
413 source "security/Kconfig"
415 source "crypto/Kconfig"