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[people/ms/u-boot.git] / doc / README.adnpesc1_base32
1
2 TODO: specify IDE i/f
3
4
5 ===============================================================================
6 C P U , M E M O R Y , I N / O U T C O M P O N E N T S
7 ===============================================================================
8 see also [1]-[5]
9
10 CPU: "DNP_ESC1"
11 32 bit NIOS for 50 MHz
12 512 Byte for register file (30 levels)
13 with out instruction cache
14 with out data cache
15 2 KByte On Chip ROM with GERMS boot monitor
16 with out On Chip RAM
17 MSTEP multiplier
18 no Debug Core
19 no On Chip Instrumentation (OCI)
20
21 U-Boot CFG: CONFIG_SYS_NIOS_CPU_CLK = 50000000
22 CONFIG_SYS_NIOS_CPU_ICACHE = (not present)
23 CONFIG_SYS_NIOS_CPU_DCACHE = (not present)
24 CONFIG_SYS_NIOS_CPU_REG_NUMS = 512
25 CONFIG_SYS_NIOS_CPU_MUL = 0
26 CONFIG_SYS_NIOS_CPU_MSTEP = 1
27 CONFIG_SYS_NIOS_CPU_DBG_CORE = 0
28
29 IRQ: Nr. | used by
30 ------+--------------------------------------------------------
31 16 | TIMER0 | CONFIG_SYS_NIOS_CPU_TIMER0_IRQ = 16
32 17 | UART0 | CONFIG_SYS_NIOS_CPU_UART0_IRQ = 17
33 18 | UART1 | CONFIG_SYS_NIOS_CPU_UART1_IRQ = 18
34 20 | LAN91C111 | CONFIG_SYS_NIOS_CPU_LAN0_IRQ =
35 | PIO6 | CONFIG_SYS_NIOS_CPU_PIO6_IRQ = 20
36 25 | SPI0 | CONFIG_SYS_NIOS_CPU_SPI0_IRQ = 25
37 31 | PIO7 | CONFIG_SYS_NIOS_CPU_PIO7_IRQ = 31
38 32 | PIO8 | CONFIG_SYS_NIOS_CPU_PIO8_IRQ = 32
39 33 | PIO9 | CONFIG_SYS_NIOS_CPU_PIO9_IRQ = 33
40 34 | PIO10 | CONFIG_SYS_NIOS_CPU_PIO10_IRQ = 34
41 35 | PIO11 | CONFIG_SYS_NIOS_CPU_PIO11_IRQ = 35
42 36 | PIO12 | CONFIG_SYS_NIOS_CPU_PIO12_IRQ =
43 | IDE0 | CONFIG_SYS_NIOS_CPU_IDE0_IRQ = 36
44 37 | PIO13 | CONFIG_SYS_NIOS_CPU_PIO13_IRQ =
45 | IDE1 | CONFIG_SYS_NIOS_CPU_IDE1_IRQ = 37
46
47 MEMORY: 8 MByte Flash
48 16 MByte SDRAM
49
50 Timer: TIMER0: high priority programmable timer (IRQ16)
51
52 U-Boot CFG: CONFIG_SYS_NIOS_CPU_TICK_TIMER = 0
53 CONFIG_SYS_NIOS_CPU_USER_TIMER = (not present)
54
55 PIO: Nr. | description
56 ------+--------------------------------------------------------
57 PIO0 | PORTA: 8 in/outputs for general purpose usage
58 PIO1 | PORTB: 8 in/outputs for general purpose usage
59 PIO2 | PORTC: 4 in/outputs for general purpose usage
60 PIO3 | RCM: 1 input for RCM_EN# jumper (Req.Conf.Mon.)
61 PIO4 | WDTENA: 1 output to enable the on-board watchdog
62 PIO5 | WDTTRIG: 1 output to trigger the on-board watchdog
63 PIO6 | LAN0INT: 1 input for LAN91C111 irq input (IRQ20)
64 PIO7 | INT1: 1 input for general purpose irq (IRQ31)
65 PIO8 | INT2: 1 input for general purpose irq (IRQ32)
66 PIO9 | INT3: 1 input for general purpose irq (IRQ33)
67 PIO10| INT4: 1 input for general purpose irq (IRQ34)
68 PIO11| INT5: 1 input for general purpose irq (IRQ35)
69 PIO12| INT6: 1 input for general purpose irq (IRQ36)
70 | IDE0INT: (same) for IDE0 irq input
71 PIO13| INT7: 1 input for general purpose irq (IRQ37)
72 | IDE1INT: (same) for IDE1 irq input
73
74 U-Boot CFG: CONFIG_SYS_NIOS_CPU_PORTA_PIO = 0
75 CONFIG_SYS_NIOS_CPU_PORTB_PIO = 1
76 CONFIG_SYS_NIOS_CPU_PORTC_PIO = 2
77 CONFIG_SYS_NIOS_CPU_RCM_PIO = 3
78 CONFIG_SYS_NIOS_CPU_WDTENA_PIO = 4
79 CONFIG_SYS_NIOS_CPU_WDTTRIG_PIO = 5
80 CONFIG_SYS_NIOS_CPU_LED_PIO = (not present)
81
82 UART: UART0: fixed baudrate of 115200, fixed protocol 8N1, RTS/CTS (IRQ17)
83 UART1: fixed baudrate of 115200, fixed protocol 8N1,
84 without handshake RTS/CTS (IRQ18)
85
86 SPI: SPI0: master capable, 1 slave selectable, 250kHz target clock,
87 2 usec targets delay between slave select and clock,
88 data is transferred MSB-first / LSB-last (IRQ25)
89
90 LAN: SMsC LAN91C111 with:
91 - without offset
92 - data bus width 16 bit (on-board hard wired at 32 bit bus)
93 - !!! 32 bit bus access --> each address * 2 !!!
94
95 IDE: (TODO)
96
97
98 ===============================================================================
99 M E M O R Y M A P
100 ===============================================================================
101
102 - - - - - - - - - - - external extension - - - - - - - - - - - - - - - - - - -
103
104 0x44000000 ---32-----------16|15------------0-
105 | | | \
106 : (real size : : |
107 EXT3 (CS4) : and content : : > CONFIG_SYS_NIOS_CPU_CS3_SIZE
108 : unknown) : : | = 0x01000000
109 | | | /
110 0x43000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_CS3_BASE
111 | | | \
112 : (real size : : |
113 EXT2 (CS3) : and content : : > CONFIG_SYS_NIOS_CPU_CS2_SIZE
114 : unknown) : : | = 0x01000000
115 | | | /
116 0x42000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_CS2_BASE
117 | | | \
118 : (real size : : |
119 EXT1 (CS2) : and content : : > CONFIG_SYS_NIOS_CPU_CS1_SIZE
120 : unknown) : : | = 0x01000000
121 | | | /
122 0x41000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_CS1_BASE
123 | | | \
124 : (real size : : |
125 EXT0 (CS1) : and content : : > CONFIG_SYS_NIOS_CPU_CS0_SIZE
126 : unknown) : : | = 0x01000000
127 | | | /
128 0x40000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_CS0_BASE
129 | |
130 : gap :
131 : :
132
133 - - - - - - - - - - - external memory - - - - - - - - - - - - - - - - - - -
134
135 : :
136 : gap :
137 | |
138 0x03000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_STACK
139 | . | \
140 | . | | (U-Boot run-time system)
141 | . | |
142 | . | > CONFIG_SYS_MONITOR_LEN
143 | . | | = 0x00040000
144 | . | |
145 | . | /
146 0x02fc0000 --+32-----------16|15------------0+ TEXT_BASE
147 | . | \
148 | . | > CONFIG_SYS_MALLOC_LEN (heap)
149 | . | /
150 --+32-----------16|15------------0+
151 | . | \
152 | . | > CONFIG_SYS_GBL_DATA_SIZE (global)
153 | . | /
154 --+32-----------16|15------------0+ CONFIG_SYS_INIT_SP (u-boot stack)
155 | . | \ \
156 | . | | |
157 | . | | > stack area
158 | . | | |
159 | . | | V
160 | . | |
161 | . | |
162 SDRAM | . | > CONFIG_SYS_NIOS_CPU_SDRAM_SIZE
163 | . | | = 0x01000000
164 | . | |
165 0x02000100 |- - - - - - - - - - - - - - - -+-|-
166 | . | | \
167 | . | | |
168 | . | | > CONFIG_SYS_NIOS_CPU_VEC_SIZE
169 | . | | | = 0x00000100
170 | | / /
171 0x02000000 |- - - - - - - - - - - - - - - -+- - CONFIG_SYS_NIOS_CPU_VEC_BASE
172 0x02000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_SDRAM_BASE
173 | | \
174 : gap : > (space for 2nd Flash)
175 | | /
176 0x01800000 ---32-----------16|15------------0-
177 | sector 127 | \
178 + 0x7f0000 |- - - - - - - - - - - - - - - -| |
179 | : | |
180 Flash |- - - - : - - - -| > CONFIG_SYS_NIOS_CPU_FLASH_SIZE
181 | sector 1 : | | = 0x00800000
182 + 0x010000 |- - - - - - - - - - - - - - - -| |
183 | sector 0 (size = 0x10000) | /
184 0x01000000 ---8-------------4|3-------------0- CONFIG_SYS_NIOS_CPU_FLASH_BASE
185 | |
186 : gap :
187 : :
188
189 - - - - - - - - - - - external i/o - - - - - - - - - - - - - - - - - - -
190
191 : :
192 : gap :
193 | |
194 0x00010020 ---32-----------16|15------------0-
195 | | \
196 | register bank | |
197 | size = (real_size << 1) | |
198 | real_size = 0x10 | |
199 | +--------.---.---.--- | |
200 | | bank 0 \ 1 \ 2 \ 3 \ | |
201 | |---------------------------+ | |
202 LAN91C111 | | BANK | RESERVED | | > na_enet_size
203 | |- - - - - - -|- - - - - - -| | | = 0x00000020
204 | | RPCR | MIR | | |
205 | |- - - - - - -|- - - - - - -| | |
206 | | COUNTER | RCR | | |
207 | |- - - - - - -|- - - - - - -| | |
208 | | EPH STATUS | TCR | | |
209 | +---------------------------+ | /
210 0x00010000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_LAN0_BASE
211 | |
212 : gap :
213 : :
214
215 - - - - - - - - - - - on chip i/o - - - - - - - - - - - - - - - - - - -
216
217 : :
218 : gap :
219 | |
220 0x00001040 ---32-----------16|15------------0-
221 | | | \
222 : : : |
223 IDE1 i/f : : : > 0x00000020
224 [5] : : : |
225 | | | /
226 0x00001020 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_IDE1
227 | | | \
228 : : : |
229 IDE0 i/f : : : > 0x00000020
230 [5] : : : |
231 | | | /
232 0x00001000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_IDE0
233 | |
234 : gap :
235 | |
236 0x00000980 ---32-----------16|15------------0-
237 | edgecapture (1 bit) (rw) | \
238 + 0x0c |- - - - - - - - - - - - - - - -| |
239 PIO13 | interruptmask (1 bit) (rw) | |
240 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
241 | (unused) | |
242 + 0x04 |- - - - - - - - - - - - - - - -| |
243 | data (1 bit) (ro) | /
244 0x00000970 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO13
245 | edgecapture (1 bit) (rw) | \
246 + 0x0c |- - - - - - - - - - - - - - - -| |
247 PIO12 | interruptmask (1 bit) (rw) | |
248 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
249 | (unused) | |
250 + 0x04 |- - - - - - - - - - - - - - - -| |
251 | data (1 bit) (ro) | /
252 0x00000960 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO12
253 | edgecapture (1 bit) (rw) | \
254 + 0x0c |- - - - - - - - - - - - - - - -| |
255 PIO11 | interruptmask (1 bit) (rw) | |
256 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
257 | (unused) | |
258 + 0x04 |- - - - - - - - - - - - - - - -| |
259 | data (1 bit) (ro) | /
260 0x00000950 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO11
261 | edgecapture (1 bit) (rw) | \
262 + 0x0c |- - - - - - - - - - - - - - - -| |
263 PIO10 | interruptmask (1 bit) (rw) | |
264 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
265 | (unused) | |
266 + 0x04 |- - - - - - - - - - - - - - - -| |
267 | data (1 bit) (ro) | /
268 0x00000940 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO10
269 | edgecapture (1 bit) (rw) | \
270 + 0x0c |- - - - - - - - - - - - - - - -| |
271 PIO9 | interruptmask (1 bit) (rw) | |
272 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
273 | (unused) | |
274 + 0x04 |- - - - - - - - - - - - - - - -| |
275 | data (1 bit) (ro) | /
276 0x00000930 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO9
277 | edgecapture (1 bit) (rw) | \
278 + 0x0c |- - - - - - - - - - - - - - - -| |
279 PIO8 | interruptmask (1 bit) (rw) | |
280 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
281 | (unused) | |
282 + 0x04 |- - - - - - - - - - - - - - - -| |
283 | data (1 bit) (ro) | /
284 0x00000920 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO8
285 | edgecapture (1 bit) (rw) | \
286 + 0x0c |- - - - - - - - - - - - - - - -| |
287 PIO7 | interruptmask (1 bit) (rw) | |
288 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
289 | (unused) | |
290 + 0x04 |- - - - - - - - - - - - - - - -| |
291 | data (1 bit) (ro) | /
292 0x00000910 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO7
293 | edgecapture (1 bit) (rw) | \
294 + 0x0c |- - - - - - - - - - - - - - - -| |
295 PIO6 | interruptmask (1 bit) (rw) | |
296 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
297 | (unused) | |
298 + 0x04 |- - - - - - - - - - - - - - - -| |
299 | data (1 bit) (ro) | /
300 0x00000900 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO6
301 | |
302 : gap :
303 | |
304 0x000008e0 ---32-----------16|15------------0-
305 | (unused) | \
306 + 0x1c |- - - - - - - - - - - - - - - -| |
307 | endofpacket (16 bit) (rw) | |
308 + 0x18 |- - - - - - - - - - - - - - - -| |
309 | slaveselect (1 bit) (rw) | |
310 + 0x14 |- - - - - - - - - - - - - - - -| |
311 SPI0 | (reserved) | |
312 [4] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020
313 | control (11 bit) (rw) | |
314 + 0x0c |- - - - - - - - - - - - - - - -| |
315 | status (9 bit) (rw) | |
316 + 0x08 |- - - - - - - - - - - - - - - -| |
317 | txdata (16 bit) (wo) | |
318 + 0x04 |- - - - - - - - - - - - - - - -| |
319 | rxdata (16 bit) (ro) | /
320 0x000008c0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_SPI0
321 | (unused) | \
322 + 0x0c |- - - - - - - - - - - - - - - -| |
323 PIO5 | (unused) | |
324 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
325 | (unused) | |
326 + 0x04 |- - - - - - - - - - - - - - - -| |
327 | data (1 bit) (wo) | /
328 0x000008b0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO5
329 | (unused) | \
330 + 0x0c |- - - - - - - - - - - - - - - -| |
331 PIO4 | (unused) | |
332 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
333 | (unused) | |
334 + 0x04 |- - - - - - - - - - - - - - - -| |
335 | data (1 bit) (wo) | /
336 0x000008a0 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO4
337 | (unused) | \
338 + 0x0c |- - - - - - - - - - - - - - - -| |
339 PIO3 | (unused) | |
340 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
341 | (unused) | |
342 + 0x04 |- - - - - - - - - - - - - - - -| |
343 | data (1 bit) (ro) | /
344 0x00000890 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO3
345 | (unused) | \
346 + 0x0c |- - - - - - - - - - - - - - - -| |
347 PIO2 | (unused) | |
348 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
349 | direction (4 bit) (rw) | |
350 + 0x04 |- - - - - - - - - - - - - - - -| |
351 | data (4 bit) (rw) | /
352 0x00000880 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO2
353 | (unused) | \
354 + 0x0c |- - - - - - - - - - - - - - - -| |
355 PIO1 | (unused) | |
356 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
357 | direction (8 bit) (rw) | |
358 + 0x04 |- - - - - - - - - - - - - - - -| |
359 | data (8 bit) (rw) | /
360 0x00000870 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO1
361 | (unused) | \
362 + 0x0c |- - - - - - - - - - - - - - - -| |
363 PIO0 | (unused) | |
364 [3] + 0x08 |- - - - - - - - - - - - - - - -| > 0x00000010
365 | direction (8 bit) (rw) | |
366 + 0x04 |- - - - - - - - - - - - - - - -| |
367 | data (8 bit) (rw) | /
368 0x00000860 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_PIO0
369 | (unused) | \
370 + 0x1c |- - - - - - - - - - - - - - - -| |
371 | (unused) | |
372 + 0x18 |- - - - - - - - - - - - - - - -| |
373 | snaph (16 bit) (rw) | |
374 + 0x14 |- - - - - - - - - - - - - - - -| |
375 TIMER0 | snapl (16 bit) (rw) | |
376 [2] + 0x10 |- - - - - - - - - - - - - - - -| > 0x00000020
377 | periodh (16 bit) (rw) | |
378 + 0x0c |- - - - - - - - - - - - - - - -| |
379 | periodl (16 bit) (rw) | |
380 + 0x08 |- - - - - - - - - - - - - - - -| |
381 | control (4 bit) (rw) | |
382 + 0x04 |- - - - - - - - - - - - - - - -| |
383 | status (2 bit) (rw) | /
384 0x00000840 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_TIMER0
385 | (unused) | \
386 + 0x1c |- - - - - - - - - - - - - - - -| |
387 | (unused) | |
388 + 0x18 |- - - - - - - - - - - - - - - -| |
389 | (unused) | |
390 + 0x14 |- - - - - - - - - - - - - - - -| |
391 UART1 | (unused) | > 0x00000020
392 [1] + 0x10 |- - - - - - - - - - - - - - - -| |
393 | control (10 bit) (rw) | |
394 + 0x0c |- - - - - - - - - - - - - - - -| |
395 | status (10 bit) (rw) | |
396 + 0x08 |- - - - - - - - - - - - - - - -| |
397 | txdata (8 bit) (wo) | |
398 + 0x04 |- - - - - - - - - - - - - - - -| |
399 | rxdata (8 bit) (ro) | /
400 0x00000820 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_UART1
401 | (unused) | \
402 + 0x1c |- - - - - - - - - - - - - - - -| |
403 | (unused) | |
404 + 0x18 |- - - - - - - - - - - - - - - -| |
405 | (unused) | |
406 + 0x14 |- - - - - - - - - - - - - - - -| |
407 UART0 | (unused) | > 0x00000020
408 [1] + 0x10 |- - - - - - - - - - - - - - - -| |
409 | control (10 bit) (rw) | |
410 + 0x0c |- - - - - - - - - - - - - - - -| |
411 | status (10 bit) (rw) | |
412 + 0x08 |- - - - - - - - - - - - - - - -| |
413 | txdata (8 bit) (wo) | |
414 + 0x04 |- - - - - - - - - - - - - - - -| |
415 | rxdata (8 bit) (ro) | /
416 0x00000800 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_UART0
417
418 - - - - - - - - - - - on chip memory 1 - - - - - - - - - - -
419
420 0x00000800 ---32-----------16|15------------0-
421 | : | \
422 | : | |
423 GERMS | : | > CONFIG_SYS_NIOS_CPU_ROM_SIZE
424 | : | | = 0x00000800
425 | : | /
426 0x00000000 |- - - - - - - - - - - - - - - -+- - CONFIG_SYS_NIOS_CPU_RST_VECT
427 0x00000000 ---32-----------16|15------------0- CONFIG_SYS_NIOS_CPU_ROM_BASE
428
429
430 ===============================================================================
431 F L A S H M E M O R Y A L L O C A T I O N
432 ===============================================================================
433
434 0x01800000 ---8-------------4|3-------------0-
435 | : | \
436 | : | |
437 | : | > 6 MByte ROM FS
438 | : | |
439 | : | /
440 0x01200000 --+- - - - - - - -:- - - - - - - -+- - file system image(s)
441 | : | \
442 | : | |
443 | : | > 1728 kByte ucLinux
444 | : | |
445 | : | /
446 0x01050000 --+- - - - - - - -:- - - - - - - -+- - os image(s)
447 | : | \
448 0x01040000 --+- - - - - - - -:- - - - - - - -+-|- u-boot environment
449 | : | |
450 | : | > 320 kByte U-Boot
451 | : | |
452 | : | |
453 | : | /
454 0x01000000 --+- - - - - - - -:- - - - - - - -+- - u-boot _start()
455 0x01000000 ---8-------------4|3-------------0-
456
457
458 ===============================================================================
459 R E F E R E N C E S
460 ===============================================================================
461 [1] http://www.altera.com/literature/ds/ds_nios_uart.pdf
462 [2] http://www.altera.com/literature/ds/ds_nios_timer.pdf
463 [3] http://www.altera.com/literature/ds/ds_nios_pio.pdf
464 [4] http://www.altera.com/literature/ds/ds_nios_spi.pdf
465 [5] http://www.t13.org/index.html
466
467
468 ===============================================================================
469 Stephan Linz <linz@li-pro.net>
"Das U-Boot" Source Tree