2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux/M32R Kernel Configuration"
19 config GENERIC_ISA_DMA
23 config GENERIC_HARDIRQS
27 config GENERIC_IRQ_PROBE
34 menu "Processor type and features"
37 prompt "Platform Type"
43 The Mappi-I is an FPGA board for SOC (System-On-a-Chip) prototyping.
44 You can operate a Linux system on this board by using an M32R
45 softmacro core, which is a fully-synthesizable functional model
46 described in Verilog-HDL.
48 The Mappi-I board was the first platform, which had been used
49 to port and develop a Linux system for the M32R processor.
50 Currently, the Mappi-II, an heir to the Mappi-I, is available.
58 The M3T-M32700UT is an evaluation board based on uT-Engine
59 specification. This board has an M32700 (Chaos) evaluation chip.
60 You can say Y for SMP, because the M32700 is a single chip
66 The OPSPUT is an evaluation board based on uT-Engine
67 specification. This board has a OPSP-REP chip.
72 The OAKS32R is a tiny, inexpensive evaluation board.
73 Please note that if you say Y here and choose chip "M32102",
74 say N for MMU and select a no-MMU version kernel, otherwise
75 a kernel with MMU support will not work, because the M32102
76 is a microcontroller for embedded systems and it has no MMU.
79 bool "Mappi-II(M3A-ZA36/M3A-ZA52)"
82 bool "Mappi-III(M3A-2170)"
87 The M3T-M32104UT is an reference board based on uT-Engine
88 specification. This board has a M32104 chip.
93 prompt "Processor family"
104 depends on PLAT_M32104UT
115 bool "Support for memory management hardware"
116 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
121 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
122 default 32 if CHIP_M32700 || CHIP_OPSP
123 default 16 if CHIP_VDEC2
128 depends on CHIP_M32102 || CHIP_M32104
133 depends on CHIP_M32700 || CHIP_VDEC2 || CHIP_OPSP
136 config ISA_DSP_LEVEL2
138 depends on CHIP_M32700 || CHIP_OPSP
141 config ISA_DUAL_ISSUE
143 depends on CHIP_M32700 || CHIP_OPSP
147 int "Bus Clock [Hz] (integer)"
148 default "70000000" if PLAT_MAPPI
149 default "25000000" if PLAT_USRV
150 default "50000000" if PLAT_MAPPI3
151 default "50000000" if PLAT_M32700UT
152 default "50000000" if PLAT_OPSPUT
153 default "54000000" if PLAT_M32104UT
154 default "33333333" if PLAT_OAKS32R
155 default "20000000" if PLAT_MAPPI2
158 int "Timer divider (integer)"
161 config CPU_LITTLE_ENDIAN
162 bool "Generate little endian code"
166 hex "Physical memory start address (hex)"
167 default "08000000" if PLAT_MAPPI || PLAT_MAPPI2 || PLAT_MAPPI3
168 default "08000000" if PLAT_USRV
169 default "08000000" if PLAT_M32700UT
170 default "08000000" if PLAT_OPSPUT
171 default "04000000" if PLAT_M32104UT
172 default "01000000" if PLAT_OAKS32R
175 hex "Physical memory size (hex)"
176 default "08000000" if PLAT_MAPPI3
177 default "04000000" if PLAT_MAPPI || PLAT_MAPPI2
178 default "02000000" if PLAT_USRV
179 default "01000000" if PLAT_M32700UT
180 default "01000000" if PLAT_OPSPUT
181 default "01000000" if PLAT_M32104UT
182 default "00800000" if PLAT_OAKS32R
188 config ARCH_DISCONTIGMEM_ENABLE
189 bool "Internal RAM Support"
190 depends on CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104
196 hex "Internal memory start address (hex)"
197 default "00f00000" if !CHIP_M32104
198 default "00700000" if CHIP_M32104
199 depends on (CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104) && DISCONTIGMEM
202 hex "Internal memory size (hex)"
203 depends on (CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP || CHIP_M32104) && DISCONTIGMEM
204 default "00080000" if CHIP_M32700
205 default "00010000" if CHIP_M32102 || CHIP_OPSP || CHIP_M32104
206 default "00008000" if CHIP_VDEC2
209 # Define implied options from the CPU selection here
212 config RWSEM_GENERIC_SPINLOCK
217 config RWSEM_XCHGADD_ALGORITHM
221 config GENERIC_CALIBRATE_DELAY
226 bool "Preemptible Kernel"
228 This option reduces the latency of the kernel when reacting to
229 real-time or interactive events by allowing a low priority process to
230 be preempted even if it is in kernel mode executing a system call.
231 This allows applications to run more reliably even when the system is
234 Say Y here if you are building a kernel for a desktop, embedded
235 or real-time system. Say N if you are unsure.
238 bool "Symmetric multi-processing support"
240 This enables support for systems with more than one CPU. If you have
241 a system with only one CPU, like most personal computers, say N. If
242 you have a system with more than one CPU, say Y.
244 If you say N here, the kernel will run on single and multiprocessor
245 machines, but will use only one CPU of a multiprocessor machine. If
246 you say Y here, the kernel will run on many, but not all,
247 singleprocessor machines. On a singleprocessor machine, the kernel
248 will run faster if you say N here.
250 People using multiprocessor machines who say Y here should also say
251 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
252 Management" code will be disabled if you say Y here.
254 See also the <file:Documentation/smp.txt>,
255 and the SMP-HOWTO available at
256 <http://www.linuxdoc.org/docs.html#howto>.
258 If you don't know what to do here, say N.
260 config CHIP_M32700_TS1
261 bool "Workaround code for the M32700 TS1 chip's bug"
262 depends on (CHIP_M32700 && SMP)
266 int "Maximum number of CPUs (2-32)"
271 This allows you to specify the maximum number of CPUs which this
272 kernel will support. The maximum supported value is 32 and the
273 minimum value which makes sense is 2.
275 This is purely to save memory - each supported CPU adds
276 approximately eight kilobytes to the kernel image.
278 # Common NUMA Features
280 bool "Numa Memory Allocation Support"
281 depends on SMP && BROKEN
284 # turning this on wastes a bunch of space.
285 # Summit needs it only when NUMA is on
294 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
301 Find out whether you have a PCI motherboard. PCI is the name of a
302 bus system, i.e. the way the CPU talks to the other stuff inside
303 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
304 VESA. If you have PCI, say Y, otherwise N.
306 The PCI-HOWTO, available from
307 <http://www.linuxdoc.org/docs.html#howto>, contains valuable
308 information about which PCI hardware does work under Linux and which
312 prompt "PCI access mode"
319 On PCI systems, the BIOS can be used to detect the PCI devices and
320 determine their configuration. However, some old PCI motherboards
321 have BIOS bugs and may crash if this is done. Also, some embedded
322 PCI-based systems don't have any BIOS at all. Linux can also try to
323 detect the PCI hardware directly without using the BIOS.
325 With this option, you can specify how Linux should detect the PCI
326 devices. If you choose "BIOS", the BIOS will be used, if you choose
327 "Direct", the BIOS won't be used, and if you choose "Any", the
328 kernel will try the direct access method and falls back to the BIOS
329 if that doesn't work. If unsure, go with the default, which is
342 depends on PCI && (PCI_GOBIOS || PCI_GOANY)
347 depends on PCI && (PCI_GODIRECT || PCI_GOANY)
350 source "drivers/pci/Kconfig"
355 Find out whether you have ISA slots on your motherboard. ISA is the
356 name of a bus system, i.e. the way the CPU talks to the other stuff
357 inside your box. If you have ISA, say Y, otherwise N.
359 source "drivers/pcmcia/Kconfig"
361 source "drivers/pci/hotplug/Kconfig"
366 menu "Executable file formats"
368 source "fs/Kconfig.binfmt"
374 source "drivers/Kconfig"
378 source "arch/m32r/oprofile/Kconfig"
380 source "arch/m32r/Kconfig.debug"
382 source "security/Kconfig"
384 source "crypto/Kconfig"