1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 comment "Machine Types" 2 comment "Machine Types"
3 3
4 if M68KCLASSIC 4 if M68KCLASSIC
5 5
6 config AMIGA 6 config AMIGA
7 bool "Amiga support" 7 bool "Amiga support"
8 depends on MMU 8 depends on MMU
9 select MMU_MOTOROLA if MMU 9 select MMU_MOTOROLA if MMU
10 select LEGACY_TIMER_TICK 10 select LEGACY_TIMER_TICK
11 help 11 help
12 This option enables support for the 12 This option enables support for the Amiga series of computers. If
13 you plan to use this kernel on an Am 13 you plan to use this kernel on an Amiga, say Y here and browse the
14 material available in <file:Document 14 material available in <file:Documentation/arch/m68k>; otherwise say N.
15 15
16 config ATARI 16 config ATARI
17 bool "Atari support" 17 bool "Atari support"
18 depends on MMU 18 depends on MMU
19 select MMU_MOTOROLA if MMU 19 select MMU_MOTOROLA if MMU
20 select HAVE_ARCH_NVRAM_OPS 20 select HAVE_ARCH_NVRAM_OPS
21 select LEGACY_TIMER_TICK 21 select LEGACY_TIMER_TICK
22 help 22 help
23 This option enables support for the 23 This option enables support for the 68000-based Atari series of
24 computers (including the TT, Falcon 24 computers (including the TT, Falcon and Medusa). If you plan to use
25 this kernel on an Atari, say Y here 25 this kernel on an Atari, say Y here and browse the material
26 available in <file:Documentation/arc 26 available in <file:Documentation/arch/m68k>; otherwise say N.
27 27
28 config ATARI_KBD_CORE 28 config ATARI_KBD_CORE
29 bool 29 bool
30 30
31 config MAC 31 config MAC
32 bool "Macintosh support" 32 bool "Macintosh support"
33 depends on MMU 33 depends on MMU
34 select MMU_MOTOROLA if MMU 34 select MMU_MOTOROLA if MMU
35 select HAVE_ARCH_NVRAM_OPS 35 select HAVE_ARCH_NVRAM_OPS
36 select HAVE_PATA_PLATFORM 36 select HAVE_PATA_PLATFORM
37 select LEGACY_TIMER_TICK 37 select LEGACY_TIMER_TICK
38 help 38 help
39 This option enables support for the 39 This option enables support for the Apple Macintosh series of
40 computers. If you plan to use this k 40 computers. If you plan to use this kernel on a Mac, say Y here and
41 browse the documentation available a 41 browse the documentation available at <http://www.mac.linux-m68k.org/>;
42 otherwise say N. 42 otherwise say N.
43 43
44 config APOLLO 44 config APOLLO
45 bool "Apollo support" 45 bool "Apollo support"
46 depends on MMU 46 depends on MMU
47 select MMU_MOTOROLA if MMU 47 select MMU_MOTOROLA if MMU
48 select LEGACY_TIMER_TICK 48 select LEGACY_TIMER_TICK
49 help 49 help
50 Say Y here if you want to run Linux 50 Say Y here if you want to run Linux on an MC680x0-based Apollo
51 Domain workstation such as the DN350 51 Domain workstation such as the DN3500.
52 52
53 config VME 53 config VME
54 bool "VME (Motorola and BVM) support" 54 bool "VME (Motorola and BVM) support"
55 depends on MMU 55 depends on MMU
56 select MMU_MOTOROLA if MMU 56 select MMU_MOTOROLA if MMU
57 help 57 help
58 Say Y here if you want to build a ke 58 Say Y here if you want to build a kernel for a 680x0 based VME
59 board. Boards currently supported i 59 board. Boards currently supported include Motorola boards MVME147,
60 MVME162, MVME166, MVME167, MVME172, 60 MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
61 BVME6000 boards from BVM Ltd are als 61 BVME6000 boards from BVM Ltd are also supported.
62 62
63 config MVME147 63 config MVME147
64 bool "MVME147 support" 64 bool "MVME147 support"
65 depends on MMU 65 depends on MMU
66 depends on VME 66 depends on VME
67 select LEGACY_TIMER_TICK 67 select LEGACY_TIMER_TICK
68 help 68 help
69 Say Y to include support for early M 69 Say Y to include support for early Motorola VME boards. This will
70 build a kernel which can run on MVME 70 build a kernel which can run on MVME147 single-board computers. If
71 you select this option you will have 71 you select this option you will have to select the appropriate
72 drivers for SCSI, Ethernet and seria 72 drivers for SCSI, Ethernet and serial ports later on.
73 73
74 config MVME16x 74 config MVME16x
75 bool "MVME162, 166 and 167 support" 75 bool "MVME162, 166 and 167 support"
76 depends on MMU 76 depends on MMU
77 depends on VME 77 depends on VME
78 select LEGACY_TIMER_TICK 78 select LEGACY_TIMER_TICK
79 help 79 help
80 Say Y to include support for Motorol 80 Say Y to include support for Motorola VME boards. This will build a
81 kernel which can run on MVME162, MVM 81 kernel which can run on MVME162, MVME166, MVME167, MVME172, and
82 MVME177 boards. If you select this 82 MVME177 boards. If you select this option you will have to select
83 the appropriate drivers for SCSI, Et 83 the appropriate drivers for SCSI, Ethernet and serial ports later
84 on. 84 on.
85 85
86 config BVME6000 86 config BVME6000
87 bool "BVME4000 and BVME6000 support" 87 bool "BVME4000 and BVME6000 support"
88 depends on MMU 88 depends on MMU
89 depends on VME 89 depends on VME
90 select LEGACY_TIMER_TICK 90 select LEGACY_TIMER_TICK
91 help 91 help
92 Say Y to include support for VME boa 92 Say Y to include support for VME boards from BVM Ltd. This will
93 build a kernel which can run on BVME 93 build a kernel which can run on BVME4000 and BVME6000 boards. If
94 you select this option you will have 94 you select this option you will have to select the appropriate
95 drivers for SCSI, Ethernet and seria 95 drivers for SCSI, Ethernet and serial ports later on.
96 96
97 config HP300 97 config HP300
98 bool "HP9000/300 and HP9000/400 suppor 98 bool "HP9000/300 and HP9000/400 support"
99 depends on MMU 99 depends on MMU
100 select MMU_MOTOROLA if MMU 100 select MMU_MOTOROLA if MMU
101 select LEGACY_TIMER_TICK 101 select LEGACY_TIMER_TICK
102 help 102 help
103 This option enables support for the 103 This option enables support for the HP9000/300 and HP9000/400 series
104 of workstations. Support for these m 104 of workstations. Support for these machines is still somewhat
105 experimental. If you plan to try to 105 experimental. If you plan to try to use the kernel on such a machine
106 say Y here. 106 say Y here.
107 Everybody else says N. 107 Everybody else says N.
108 108
109 config SUN3X 109 config SUN3X
110 bool "Sun3x support" 110 bool "Sun3x support"
111 depends on MMU 111 depends on MMU
112 select LEGACY_TIMER_TICK 112 select LEGACY_TIMER_TICK
113 select MMU_MOTOROLA if MMU 113 select MMU_MOTOROLA if MMU
114 select M68030 114 select M68030
115 help 115 help
116 This option enables support for the 116 This option enables support for the Sun 3x series of workstations.
117 Be warned that this support is very 117 Be warned that this support is very experimental.
118 Note that Sun 3x kernels are not com 118 Note that Sun 3x kernels are not compatible with Sun 3 hardware.
119 General Linux information on the Sun 119 General Linux information on the Sun 3x series (now discontinued)
120 is at <http://www.angelfire.com/ca2/ 120 is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
121 121
122 If you don't want to compile a kerne 122 If you don't want to compile a kernel for a Sun 3x, say N.
123 123
124 config Q40 124 config Q40
125 bool "Q40/Q60 support" 125 bool "Q40/Q60 support"
126 depends on MMU 126 depends on MMU
127 select MMU_MOTOROLA if MMU 127 select MMU_MOTOROLA if MMU
128 select LEGACY_TIMER_TICK 128 select LEGACY_TIMER_TICK
129 help 129 help
130 The Q40 is a Motorola 68040-based su 130 The Q40 is a Motorola 68040-based successor to the Sinclair QL
131 manufactured in Germany. There is a 131 manufactured in Germany. There is an official Q40 home page at
132 <http://www.q40.de/>. This option e 132 <http://www.q40.de/>. This option enables support for the Q40 and
133 Q60. Select your CPU below. For 68L 133 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
134 emulation. 134 emulation.
135 135
136 config SUN3 136 config SUN3
137 bool "Sun3 support" 137 bool "Sun3 support"
138 depends on MMU 138 depends on MMU
139 depends on !MMU_MOTOROLA 139 depends on !MMU_MOTOROLA
140 select MMU_SUN3 if MMU 140 select MMU_SUN3 if MMU
141 select LEGACY_TIMER_TICK 141 select LEGACY_TIMER_TICK
142 select NO_DMA 142 select NO_DMA
143 select M68020 143 select M68020
144 help 144 help
145 This option enables support for the 145 This option enables support for the Sun 3 series of workstations
146 (3/50, 3/60, 3/1xx, 3/2xx systems). 146 (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
147 that all other hardware types must b 147 that all other hardware types must be disabled, as Sun 3 kernels
148 are incompatible with all other m68k 148 are incompatible with all other m68k targets (including Sun 3x!).
149 149
150 If you don't want to compile a kerne 150 If you don't want to compile a kernel exclusively for a Sun 3, say N.
151 151
152 config VIRT 152 config VIRT
153 bool "Virtual M68k Machine support" 153 bool "Virtual M68k Machine support"
154 depends on MMU 154 depends on MMU
155 select GENERIC_CLOCKEVENTS 155 select GENERIC_CLOCKEVENTS
156 select GOLDFISH 156 select GOLDFISH
157 select GOLDFISH_TIMER 157 select GOLDFISH_TIMER
158 select GOLDFISH_TTY 158 select GOLDFISH_TTY
159 select M68040 159 select M68040
160 select MMU_MOTOROLA if MMU 160 select MMU_MOTOROLA if MMU
161 select RTC_CLASS 161 select RTC_CLASS
162 select RTC_DRV_GOLDFISH 162 select RTC_DRV_GOLDFISH
163 select TTY 163 select TTY
164 select VIRTIO_MENU 164 select VIRTIO_MENU
165 select VIRTIO_MMIO 165 select VIRTIO_MMIO
166 help 166 help
167 This options enable a pure virtual m 167 This options enable a pure virtual machine based on m68k,
168 VIRTIO MMIO devices and GOLDFISH int 168 VIRTIO MMIO devices and GOLDFISH interfaces (TTY, RTC, PIC).
169 169
170 config PILOT 170 config PILOT
171 bool 171 bool
172 172
173 config PILOT3 173 config PILOT3
174 bool "Pilot 1000/5000, PalmPilot Perso 174 bool "Pilot 1000/5000, PalmPilot Personal/Pro, or PalmIII support"
175 depends on !MMU 175 depends on !MMU
176 select M68328 176 select M68328
177 select PILOT 177 select PILOT
178 help 178 help
179 Support for the Palm Pilot 1000/5000 179 Support for the Palm Pilot 1000/5000, Personal/Pro and PalmIII.
180 180
181 config XCOPILOT_BUGS 181 config XCOPILOT_BUGS
182 bool "(X)Copilot support" 182 bool "(X)Copilot support"
183 depends on PILOT3 183 depends on PILOT3
184 help 184 help
185 Support the bugs of Xcopilot. 185 Support the bugs of Xcopilot.
186 186
187 config UCSIMM 187 config UCSIMM
188 bool "uCsimm module support" 188 bool "uCsimm module support"
189 depends on !MMU 189 depends on !MMU
190 select M68EZ328 190 select M68EZ328
191 help 191 help
192 Support for the Arcturus Networks uC 192 Support for the Arcturus Networks uCsimm module.
193 193
194 config UCDIMM 194 config UCDIMM
195 bool "uCdimm module support" 195 bool "uCdimm module support"
196 depends on !MMU 196 depends on !MMU
197 select M68VZ328 197 select M68VZ328
198 help 198 help
199 Support for the Arcturus Networks uC 199 Support for the Arcturus Networks uCdimm module.
200 200
201 config DRAGEN2 201 config DRAGEN2
202 bool "DragonEngine II board support" 202 bool "DragonEngine II board support"
203 depends on !MMU 203 depends on !MMU
204 select M68VZ328 204 select M68VZ328
205 help 205 help
206 Support for the DragonEngine II boar 206 Support for the DragonEngine II board.
207 207
208 config DIRECT_IO_ACCESS 208 config DIRECT_IO_ACCESS
209 bool "Allow user to access IO directly 209 bool "Allow user to access IO directly"
210 depends on (UCSIMM || UCDIMM || DRAGEN 210 depends on (UCSIMM || UCDIMM || DRAGEN2)
211 help 211 help
212 Disable the CPU internal registers p 212 Disable the CPU internal registers protection in user mode,
213 to allow a user application to read/ 213 to allow a user application to read/write them.
214 214
215 config INIT_LCD 215 config INIT_LCD
216 bool "Initialize LCD" 216 bool "Initialize LCD"
217 depends on (UCSIMM || UCDIMM || DRAGEN 217 depends on (UCSIMM || UCDIMM || DRAGEN2)
218 help 218 help
219 Initialize the LCD controller of the 219 Initialize the LCD controller of the 68x328 processor.
220 220
221 config MEMORY_RESERVE 221 config MEMORY_RESERVE
222 int "Memory reservation (MiB)" 222 int "Memory reservation (MiB)"
223 depends on (UCSIMM || UCDIMM) 223 depends on (UCSIMM || UCDIMM)
224 default 0 224 default 0
225 help 225 help
226 Reserve certain memory regions on 68 226 Reserve certain memory regions on 68x328 based boards.
227 227
228 endif # M68KCLASSIC 228 endif # M68KCLASSIC
229 229
230 config ARN5206 230 config ARN5206
231 bool "Arnewsh 5206 board support" 231 bool "Arnewsh 5206 board support"
232 depends on M5206 232 depends on M5206
233 help 233 help
234 Support for the Arnewsh 5206 board. 234 Support for the Arnewsh 5206 board.
235 235
236 config M5206eC3 236 config M5206eC3
237 bool "Motorola M5206eC3 board support" 237 bool "Motorola M5206eC3 board support"
238 depends on M5206e 238 depends on M5206e
239 help 239 help
240 Support for the Motorola M5206eC3 bo 240 Support for the Motorola M5206eC3 board.
241 241
242 config ELITE 242 config ELITE
243 bool "Motorola M5206eLITE board suppor 243 bool "Motorola M5206eLITE board support"
244 depends on M5206e 244 depends on M5206e
245 help 245 help
246 Support for the Motorola M5206eLITE 246 Support for the Motorola M5206eLITE board.
247 247
248 config M5235EVB 248 config M5235EVB
249 bool "Freescale M5235EVB support" 249 bool "Freescale M5235EVB support"
250 depends on M523x 250 depends on M523x
251 help 251 help
252 Support for the Freescale M5235EVB b 252 Support for the Freescale M5235EVB board.
253 253
254 config M5249C3 254 config M5249C3
255 bool "Motorola M5249C3 board support" 255 bool "Motorola M5249C3 board support"
256 depends on M5249 256 depends on M5249
257 help 257 help
258 Support for the Motorola M5249C3 boa 258 Support for the Motorola M5249C3 board.
259 259
260 config M5272C3 260 config M5272C3
261 bool "Motorola M5272C3 board support" 261 bool "Motorola M5272C3 board support"
262 depends on M5272 262 depends on M5272
263 help 263 help
264 Support for the Motorola M5272C3 boa 264 Support for the Motorola M5272C3 board.
265 265
266 config WILDFIRE 266 config WILDFIRE
267 bool "Intec Automation Inc. WildFire b 267 bool "Intec Automation Inc. WildFire board support"
268 depends on M528x 268 depends on M528x
269 help 269 help
270 Support for the Intec Automation Inc 270 Support for the Intec Automation Inc. WildFire.
271 271
272 config WILDFIREMOD 272 config WILDFIREMOD
273 bool "Intec Automation Inc. WildFire m 273 bool "Intec Automation Inc. WildFire module support"
274 depends on M528x 274 depends on M528x
275 help 275 help
276 Support for the Intec Automation Inc 276 Support for the Intec Automation Inc. WildFire module.
277 277
278 config ARN5307 278 config ARN5307
279 bool "Arnewsh 5307 board support" 279 bool "Arnewsh 5307 board support"
280 depends on M5307 280 depends on M5307
281 help 281 help
282 Support for the Arnewsh 5307 board. 282 Support for the Arnewsh 5307 board.
283 283
284 config M5307C3 284 config M5307C3
285 bool "Motorola M5307C3 board support" 285 bool "Motorola M5307C3 board support"
286 depends on M5307 286 depends on M5307
287 help 287 help
288 Support for the Motorola M5307C3 boa 288 Support for the Motorola M5307C3 board.
289 289
290 config SECUREEDGEMP3 290 config SECUREEDGEMP3
291 bool "SnapGear SecureEdge/MP3 platform 291 bool "SnapGear SecureEdge/MP3 platform support"
292 depends on M5307 292 depends on M5307
293 help 293 help
294 Support for the SnapGear SecureEdge/ 294 Support for the SnapGear SecureEdge/MP3 platform.
295 295
296 config M5407C3 296 config M5407C3
297 bool "Motorola M5407C3 board support" 297 bool "Motorola M5407C3 board support"
298 depends on M5407 298 depends on M5407
299 help 299 help
300 Support for the Motorola M5407C3 boa 300 Support for the Motorola M5407C3 board.
301 301
302 config AMCORE 302 config AMCORE
303 bool "Sysam AMCORE board support" 303 bool "Sysam AMCORE board support"
304 depends on M5307 304 depends on M5307
305 help 305 help
306 Support for the Sysam AMCORE open-ha 306 Support for the Sysam AMCORE open-hardware generic board.
307 307
308 config STMARK2 308 config STMARK2
309 bool "Sysam stmark2 board support" 309 bool "Sysam stmark2 board support"
310 depends on M5441x 310 depends on M5441x
311 help 311 help
312 Support for the Sysam stmark2 open-h 312 Support for the Sysam stmark2 open-hardware generic board.
313 313
314 config FIREBEE 314 config FIREBEE
315 bool "FireBee board support" 315 bool "FireBee board support"
316 depends on M547x 316 depends on M547x
317 help 317 help
318 Support for the FireBee ColdFire 547 318 Support for the FireBee ColdFire 5475 based board.
319 319
320 config CLEOPATRA 320 config CLEOPATRA
321 bool "Feith CLEOPATRA board support" 321 bool "Feith CLEOPATRA board support"
322 depends on (M5307 || M5407) 322 depends on (M5307 || M5407)
323 help 323 help
324 Support for the Feith Cleopatra boar 324 Support for the Feith Cleopatra boards.
325 325
326 config CANCam 326 config CANCam
327 bool "Feith CANCam board support" 327 bool "Feith CANCam board support"
328 depends on M5272 328 depends on M5272
329 help 329 help
330 Support for the Feith CANCam board. 330 Support for the Feith CANCam board.
331 331
332 config SCALES 332 config SCALES
333 bool "Feith SCALES board support" 333 bool "Feith SCALES board support"
334 depends on M5272 334 depends on M5272
335 help 335 help
336 Support for the Feith SCALES board. 336 Support for the Feith SCALES board.
337 337
338 config NETtel 338 config NETtel
339 bool "SecureEdge/NETtel board support" 339 bool "SecureEdge/NETtel board support"
340 depends on (M5206e || M5272 || M5307) 340 depends on (M5206e || M5272 || M5307)
341 help 341 help
342 Support for the SnapGear NETtel/Secu 342 Support for the SnapGear NETtel/SecureEdge/SnapGear boards.
343 343
344 config MOD5272 344 config MOD5272
345 bool "Netburner MOD-5272 board support 345 bool "Netburner MOD-5272 board support"
346 depends on M5272 346 depends on M5272
347 help 347 help
348 Support for the Netburner MOD-5272 b 348 Support for the Netburner MOD-5272 board.
349 349
350 if !MMU || COLDFIRE 350 if !MMU || COLDFIRE
351 351
352 comment "Machine Options" 352 comment "Machine Options"
353 353
354 config UBOOT 354 config UBOOT
355 bool "Support for U-Boot command line 355 bool "Support for U-Boot command line parameters"
356 depends on COLDFIRE 356 depends on COLDFIRE
357 help 357 help
358 If you say Y here kernel will try to 358 If you say Y here kernel will try to collect command
359 line parameters from the initial u-b 359 line parameters from the initial u-boot stack.
360 360
361 config 4KSTACKS 361 config 4KSTACKS
362 bool "Use 4Kb for kernel stacks instea 362 bool "Use 4Kb for kernel stacks instead of 8Kb"
363 default y 363 default y
364 help 364 help
365 If you say Y here the kernel will us 365 If you say Y here the kernel will use a 4Kb stacksize for the
366 kernel stack attached to each proces 366 kernel stack attached to each process/thread. This facilitates
367 running more threads on a system and 367 running more threads on a system and also reduces the pressure
368 on the VM subsystem for higher order 368 on the VM subsystem for higher order allocations.
369 369
370 comment "RAM configuration" 370 comment "RAM configuration"
371 371
372 config RAMBASE 372 config RAMBASE
373 hex "Address of the base of RAM" 373 hex "Address of the base of RAM"
374 default "0" 374 default "0"
375 help 375 help
376 Define the address that RAM starts a 376 Define the address that RAM starts at. On many platforms this is
377 0, the base of the address space. An 377 0, the base of the address space. And this is the default. Some
378 platforms choose to setup their RAM 378 platforms choose to setup their RAM at other addresses within the
379 processor address space. 379 processor address space.
380 380
381 config RAMSIZE 381 config RAMSIZE
382 hex "Size of RAM (in bytes), or 0 for 382 hex "Size of RAM (in bytes), or 0 for automatic"
383 default "0x400000" 383 default "0x400000"
384 help 384 help
385 Define the size of the system RAM. I 385 Define the size of the system RAM. If you select 0 then the
386 kernel will try to probe the RAM siz 386 kernel will try to probe the RAM size at runtime. This is not
387 supported on all CPU types. 387 supported on all CPU types.
388 388
389 config VECTORBASE 389 config VECTORBASE
390 hex "Address of the base of system vec 390 hex "Address of the base of system vectors"
391 default "0" 391 default "0"
392 help 392 help
393 Define the address of the system vec 393 Define the address of the system vectors. Commonly this is
394 put at the start of RAM, but it does 394 put at the start of RAM, but it doesn't have to be. On ColdFire
395 platforms this address is programmed 395 platforms this address is programmed into the VBR register, thus
396 actually setting the address to use. 396 actually setting the address to use.
397 397
398 config MBAR 398 config MBAR
399 hex "Address of the MBAR (internal per 399 hex "Address of the MBAR (internal peripherals)"
400 default "0x10000000" 400 default "0x10000000"
401 depends on HAVE_MBAR 401 depends on HAVE_MBAR
402 help 402 help
403 Define the address of the internal s 403 Define the address of the internal system peripherals. This value
404 is set in the processors MBAR regist 404 is set in the processors MBAR register. This is generally setup by
405 the boot loader, and will not be wri 405 the boot loader, and will not be written by the kernel. By far most
406 ColdFire boards use the default 0x10 406 ColdFire boards use the default 0x10000000 value, so if unsure then
407 use this. 407 use this.
408 408
409 config IPSBAR 409 config IPSBAR
410 hex "Address of the IPSBAR (internal p 410 hex "Address of the IPSBAR (internal peripherals)"
411 default "0x40000000" 411 default "0x40000000"
412 depends on HAVE_IPSBAR 412 depends on HAVE_IPSBAR
413 help 413 help
414 Define the address of the internal s 414 Define the address of the internal system peripherals. This value
415 is set in the processors IPSBAR regi 415 is set in the processors IPSBAR register. This is generally setup by
416 the boot loader, and will not be wri 416 the boot loader, and will not be written by the kernel. By far most
417 ColdFire boards use the default 0x40 417 ColdFire boards use the default 0x40000000 value, so if unsure then
418 use this. 418 use this.
419 419
420 config KERNELBASE 420 config KERNELBASE
421 hex "Address of the base of kernel cod 421 hex "Address of the base of kernel code"
422 default "0x400" 422 default "0x400"
423 help 423 help
424 Typically on m68k systems the kernel 424 Typically on m68k systems the kernel will not start at the base
425 of RAM, but usually some small offse 425 of RAM, but usually some small offset from it. Define the start
426 address of the kernel here. The most 426 address of the kernel here. The most common setup will have the
427 processor vectors at the base of RAM 427 processor vectors at the base of RAM and then the start of the
428 kernel. On some platforms some RAM i 428 kernel. On some platforms some RAM is reserved for boot loaders
429 and the kernel starts after that. Th 429 and the kernel starts after that. The 0x400 default was based on
430 a system with the RAM based at addre 430 a system with the RAM based at address 0, and leaving enough room
431 for the theoretical maximum number o 431 for the theoretical maximum number of 256 vectors.
432 432
433 comment "ROM configuration" 433 comment "ROM configuration"
434 434
435 config ROM 435 config ROM
436 bool "Specify ROM linker regions" 436 bool "Specify ROM linker regions"
437 help 437 help
438 Define a ROM region for the linker s 438 Define a ROM region for the linker script. This creates a kernel
439 that can be stored in flash, with po 439 that can be stored in flash, with possibly the text, and data
440 regions being copied out to RAM at s 440 regions being copied out to RAM at startup.
441 441
442 config ROMVEC 442 config ROMVEC
443 hex "Address of the base of the ROM ve 443 hex "Address of the base of the ROM vectors"
444 default "0x10c10000" 444 default "0x10c10000"
445 depends on ROM 445 depends on ROM
446 help 446 help
447 This is almost always the same as th 447 This is almost always the same as the base of the ROM. Since on all
448 68000 type variants the vectors are 448 68000 type variants the vectors are at the base of the boot device
449 on system startup. 449 on system startup.
450 450
451 config ROMSTART 451 config ROMSTART
452 hex "Address of the base of system ima 452 hex "Address of the base of system image in ROM"
453 default "0x10c10400" 453 default "0x10c10400"
454 depends on ROM 454 depends on ROM
455 help 455 help
456 Define the start address of the syst 456 Define the start address of the system image in ROM. Commonly this
457 is strait after the ROM vectors. 457 is strait after the ROM vectors.
458 458
459 choice 459 choice
460 prompt "Kernel executes from" 460 prompt "Kernel executes from"
461 help 461 help
462 Choose the memory type that the kern 462 Choose the memory type that the kernel will be running in.
463 463
464 config RAMKERNEL 464 config RAMKERNEL
465 bool "RAM" 465 bool "RAM"
466 help 466 help
467 The kernel will be resident in RAM w 467 The kernel will be resident in RAM when running.
468 468
469 config ROMKERNEL 469 config ROMKERNEL
470 bool "ROM" 470 bool "ROM"
471 depends on ROM 471 depends on ROM
472 help 472 help
473 The kernel will be resident in FLASH 473 The kernel will be resident in FLASH/ROM when running. This is
474 often referred to as Execute-in-Plac 474 often referred to as Execute-in-Place (XIP), since the kernel
475 code executes from the position it i 475 code executes from the position it is stored in the FLASH/ROM.
476 476
477 endchoice 477 endchoice
478 478
479 endif # !MMU || COLDFIRE 479 endif # !MMU || COLDFIRE
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