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c2f02da2 DH |
1 | /* SPARC Board initialization |
2 | * | |
3 | * (C) Copyright 2000-2006 | |
4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
5 | * | |
6 | * (C) Copyright 2007 | |
7 | * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com. | |
8 | * | |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
28 | #include <common.h> | |
29 | #include <command.h> | |
30 | #include <malloc.h> | |
31 | #include <devices.h> | |
32 | #include <config.h> | |
33 | #if defined(CONFIG_CMD_IDE) | |
34 | #include <ide.h> | |
35 | #endif | |
36 | #ifdef CONFIG_STATUS_LED | |
37 | #include <status_led.h> | |
38 | #endif | |
39 | #include <net.h> | |
40 | #include <serial.h> | |
41 | #include <version.h> | |
42 | #if defined(CONFIG_POST) | |
43 | #include <post.h> | |
44 | #endif | |
45 | #ifdef CONFIG_PS2KBD | |
46 | #include <keyboard.h> | |
47 | #endif | |
48 | #ifdef CONFIG_CMD_AMBAPP | |
49 | #include <ambapp.h> | |
50 | #endif | |
51 | ||
52 | DECLARE_GLOBAL_DATA_PTR; | |
53 | ||
54 | /* Debug options | |
55 | #define DEBUG_INIT_SEQUENCE | |
56 | #define DEBUG_MEM_LAYOUT | |
57 | #define DEBUG_COMMANDS | |
58 | */ | |
59 | ||
60 | extern void timer_interrupt_init(void); | |
61 | extern void malloc_bin_reloc(void); | |
62 | extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]); | |
63 | extern int prom_init(void); | |
64 | ||
65 | #if defined(CONFIG__CMD_DOC) | |
66 | void doc_init(void); | |
67 | #endif | |
68 | ||
69 | #if !defined(CFG_NO_FLASH) | |
70 | static char *failed = "*** failed ***\n"; | |
71 | #endif | |
72 | ||
73 | #include <environment.h> | |
74 | ||
75 | ulong monitor_flash_len; | |
76 | ||
77 | /* | |
78 | * Begin and End of memory area for malloc(), and current "brk" | |
79 | */ | |
80 | static ulong mem_malloc_start = 0; | |
81 | static ulong mem_malloc_end = 0; | |
82 | static ulong mem_malloc_brk = 0; | |
83 | ||
84 | /************************************************************************ | |
85 | * Utilities * | |
86 | ************************************************************************ | |
87 | */ | |
88 | ||
89 | /* | |
90 | * The Malloc area is immediately below the monitor copy in RAM | |
91 | */ | |
92 | static void mem_malloc_init(void) | |
93 | { | |
94 | mem_malloc_start = CFG_MALLOC_BASE; | |
95 | mem_malloc_end = CFG_MALLOC_END; | |
96 | mem_malloc_brk = mem_malloc_start; | |
97 | memset((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start); | |
98 | } | |
99 | ||
100 | void *sbrk(ptrdiff_t increment) | |
101 | { | |
102 | ulong old = mem_malloc_brk; | |
103 | ulong new = old + increment; | |
104 | ||
105 | if ((new < mem_malloc_start) || (new > mem_malloc_end)) { | |
106 | return (NULL); | |
107 | } | |
108 | mem_malloc_brk = new; | |
109 | return ((void *)old); | |
110 | } | |
111 | ||
112 | /***********************************************************************/ | |
113 | ||
114 | /************************************************************************ | |
115 | * Init Utilities * | |
116 | ************************************************************************ | |
117 | * Some of this code should be moved into the core functions, | |
118 | * but let's get it working (again) first... | |
119 | */ | |
120 | ||
121 | static int init_baudrate(void) | |
122 | { | |
123 | char tmp[64]; /* long enough for environment variables */ | |
124 | int i = getenv_r("baudrate", tmp, sizeof(tmp)); | |
125 | ||
126 | gd->baudrate = (i > 0) | |
127 | ? (int)simple_strtoul(tmp, NULL, 10) | |
128 | : CONFIG_BAUDRATE; | |
129 | return (0); | |
130 | } | |
131 | ||
132 | /***********************************************************************/ | |
133 | ||
134 | /* | |
135 | * All attempts to come up with a "common" initialization sequence | |
136 | * that works for all boards and architectures failed: some of the | |
137 | * requirements are just _too_ different. To get rid of the resulting | |
138 | * mess of board dependend #ifdef'ed code we now make the whole | |
139 | * initialization sequence configurable to the user. | |
140 | * | |
141 | * The requirements for any new initalization function is simple: it | |
142 | * receives a pointer to the "global data" structure as it's only | |
143 | * argument, and returns an integer return code, where 0 means | |
144 | * "continue" and != 0 means "fatal error, hang the system". | |
145 | */ | |
146 | typedef int (init_fnc_t) (void); | |
147 | ||
148 | #define WATCHDOG_RESET(x) | |
149 | ||
150 | /************************************************************************ | |
151 | * Initialization sequence * | |
152 | ************************************************************************ | |
153 | */ | |
154 | ||
155 | init_fnc_t *init_sequence[] = { | |
156 | ||
157 | #if defined(CONFIG_BOARD_EARLY_INIT_F) | |
158 | board_early_init_f, | |
159 | #endif | |
160 | serial_init, | |
161 | ||
162 | init_timebase, | |
163 | ||
164 | #if defined(CONFIG_CMD_AMBAPP) | |
165 | ambapp_init_reloc, | |
166 | #endif | |
167 | ||
168 | env_init, | |
169 | ||
170 | init_baudrate, | |
171 | ||
172 | console_init_f, | |
173 | display_options, | |
174 | ||
175 | checkcpu, | |
176 | checkboard, | |
177 | #if defined(CONFIG_MISC_INIT_F) | |
178 | misc_init_f, | |
179 | #endif | |
180 | ||
181 | #ifdef CONFIG_POST | |
182 | post_init_f, | |
183 | #endif | |
184 | ||
185 | NULL, /* Terminate this list, | |
186 | * beware: this list will be relocated | |
187 | * which means that NULL will become | |
188 | * NULL+RELOC_OFFSET. We simply make | |
189 | * NULL be -RELOC_OFFSET instead. | |
190 | */ | |
191 | }; | |
192 | ||
193 | /************************************************************************ | |
194 | * | |
195 | * This is the SPARC board initialization routine, running from RAM. | |
196 | * | |
197 | ************************************************************************ | |
198 | */ | |
199 | #ifdef DEBUG_INIT_SEQUENCE | |
200 | char *str_init_seq = "INIT_SEQ 00\n"; | |
201 | char *str_init_seq_done = "\n\rInit sequence done...\r\n\r\n"; | |
202 | #endif | |
203 | ||
204 | void board_init_f(ulong bootflag) | |
205 | { | |
206 | cmd_tbl_t *cmdtp; | |
207 | bd_t *bd; | |
208 | unsigned char *s; | |
209 | init_fnc_t **init_fnc_ptr; | |
210 | int j; | |
211 | int i; | |
212 | char *e; | |
213 | ||
214 | #ifndef CFG_NO_FLASH | |
215 | ulong flash_size; | |
216 | #endif | |
217 | ||
218 | gd = (gd_t *) (CFG_GBL_DATA_OFFSET); | |
219 | ||
220 | /* Clear initial global data */ | |
221 | memset((void *)gd, 0, sizeof(gd_t)); | |
222 | ||
223 | gd->bd = (bd_t *) (gd + 1); /* At end of global data */ | |
224 | gd->baudrate = CONFIG_BAUDRATE; | |
225 | gd->cpu_clk = CONFIG_SYS_CLK_FREQ; | |
226 | ||
227 | bd = gd->bd; | |
228 | bd->bi_memstart = CFG_RAM_BASE; | |
229 | bd->bi_memsize = CFG_RAM_SIZE; | |
230 | bd->bi_flashstart = CFG_FLASH_BASE; | |
231 | #if defined(CFG_SRAM_BASE) && defined(CFG_SRAM_SIZE) | |
232 | bd->bi_sramstart = CFG_SRAM_BASE; | |
233 | bd->bi_sramsize = CFG_SRAM_SIZE; | |
234 | #endif | |
235 | bd->bi_baudrate = CONFIG_BAUDRATE; | |
236 | bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */ | |
237 | ||
238 | gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ | |
239 | gd->reloc_off = CFG_RELOC_MONITOR_BASE - CFG_MONITOR_BASE; | |
240 | ||
241 | for (init_fnc_ptr = init_sequence, j = 0; *init_fnc_ptr; | |
242 | ++init_fnc_ptr, j++) { | |
243 | #ifdef DEBUG_INIT_SEQUENCE | |
244 | if (j > 9) | |
245 | str_init_seq[9] = '0' + (j / 10); | |
246 | str_init_seq[10] = '0' + (j - (j / 10) * 10); | |
247 | serial_puts(str_init_seq); | |
248 | #endif | |
249 | if ((*init_fnc_ptr + gd->reloc_off) () != 0) { | |
250 | hang(); | |
251 | } | |
252 | } | |
253 | #ifdef DEBUG_INIT_SEQUENCE | |
254 | serial_puts(str_init_seq_done); | |
255 | #endif | |
256 | ||
257 | /* | |
258 | * Now that we have DRAM mapped and working, we can | |
259 | * relocate the code and continue running from DRAM. | |
260 | * | |
261 | * Reserve memory at end of RAM for (top down in that order): | |
262 | * - kernel log buffer | |
263 | * - protected RAM | |
264 | * - LCD framebuffer | |
265 | * - monitor code | |
266 | * - board info struct | |
267 | */ | |
268 | #ifdef DEBUG_MEM_LAYOUT | |
269 | printf("CFG_MONITOR_BASE: 0x%lx\n", CFG_MONITOR_BASE); | |
270 | printf("CFG_ENV_ADDR: 0x%lx\n", CFG_ENV_ADDR); | |
271 | printf("CFG_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CFG_RELOC_MONITOR_BASE, | |
272 | CFG_MONITOR_LEN); | |
273 | printf("CFG_MALLOC_BASE: 0x%lx (%d)\n", CFG_MALLOC_BASE, | |
274 | CFG_MALLOC_LEN); | |
275 | printf("CFG_INIT_SP_OFFSET: 0x%lx (%d)\n", CFG_INIT_SP_OFFSET, | |
276 | CFG_STACK_SIZE); | |
277 | printf("CFG_PROM_OFFSET: 0x%lx (%d)\n", CFG_PROM_OFFSET, | |
278 | CFG_PROM_SIZE); | |
279 | printf("CFG_GBL_DATA_OFFSET: 0x%lx (%d)\n", CFG_GBL_DATA_OFFSET, | |
280 | CFG_GBL_DATA_SIZE); | |
281 | #endif | |
282 | ||
283 | #ifdef CONFIG_POST | |
284 | post_bootmode_init(); | |
285 | post_run(NULL, POST_ROM | post_bootmode_get(0)); | |
286 | #endif | |
287 | ||
288 | /* | |
289 | * We have to relocate the command table manually | |
290 | */ | |
291 | for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) { | |
292 | ulong addr; | |
293 | addr = (ulong) (cmdtp->cmd) + gd->reloc_off; | |
294 | #if DEBUG_COMMANDS | |
295 | printf("Command \"%s\": 0x%08lx => 0x%08lx\n", | |
296 | cmdtp->name, (ulong) (cmdtp->cmd), addr); | |
297 | #endif | |
298 | cmdtp->cmd = | |
299 | (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr; | |
300 | ||
301 | addr = (ulong) (cmdtp->name) + gd->reloc_off; | |
302 | cmdtp->name = (char *)addr; | |
303 | ||
304 | if (cmdtp->usage) { | |
305 | addr = (ulong) (cmdtp->usage) + gd->reloc_off; | |
306 | cmdtp->usage = (char *)addr; | |
307 | } | |
308 | #ifdef CFG_LONGHELP | |
309 | if (cmdtp->help) { | |
310 | addr = (ulong) (cmdtp->help) + gd->reloc_off; | |
311 | cmdtp->help = (char *)addr; | |
312 | } | |
313 | #endif | |
314 | } | |
315 | ||
316 | #if defined(CONFIG_CMD_AMBAPP) && defined(CFG_AMBAPP_PRINT_ON_STARTUP) | |
317 | puts("AMBA:\n"); | |
318 | do_ambapp_print(NULL, 0, 0, NULL); | |
319 | #endif | |
320 | ||
321 | /* initialize higher level parts of CPU like time base and timers */ | |
322 | cpu_init_r(); | |
323 | ||
324 | /* start timer */ | |
325 | timer_interrupt_init(); | |
326 | ||
327 | /* | |
328 | * Enable Interrupts before any calls to udelay, | |
329 | * the flash driver may use udelay resulting in | |
330 | * a hang if not timer0 IRQ is enabled. | |
331 | */ | |
332 | interrupt_init(); | |
333 | ||
334 | #if !defined(CFG_NO_FLASH) | |
335 | puts("FLASH: "); | |
336 | ||
337 | if ((flash_size = flash_init()) > 0) { | |
338 | # ifdef CFG_FLASH_CHECKSUM | |
339 | print_size(flash_size, ""); | |
340 | /* | |
341 | * Compute and print flash CRC if flashchecksum is set to 'y' | |
342 | * | |
343 | * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX | |
344 | */ | |
345 | s = getenv("flashchecksum"); | |
346 | if (s && (*s == 'y')) { | |
347 | printf(" CRC: %08lX", | |
348 | crc32(0, (const unsigned char *)CFG_FLASH_BASE, | |
349 | flash_size) | |
350 | ); | |
351 | } | |
352 | putc('\n'); | |
353 | # else /* !CFG_FLASH_CHECKSUM */ | |
354 | print_size(flash_size, "\n"); | |
355 | # endif /* CFG_FLASH_CHECKSUM */ | |
356 | } else { | |
357 | puts(failed); | |
358 | hang(); | |
359 | } | |
360 | ||
361 | bd->bi_flashstart = CFG_FLASH_BASE; /* update start of FLASH memory */ | |
362 | bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */ | |
363 | #if CFG_MONITOR_BASE == CFG_FLASH_BASE | |
364 | bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */ | |
365 | #else | |
366 | bd->bi_flashoffset = 0; | |
367 | #endif | |
368 | #else /* CFG_NO_FLASH */ | |
369 | bd->bi_flashsize = 0; | |
370 | bd->bi_flashstart = 0; | |
371 | bd->bi_flashoffset = 0; | |
372 | #endif /* !CFG_NO_FLASH */ | |
373 | ||
374 | /* initialize malloc() area */ | |
375 | mem_malloc_init(); | |
376 | ||
377 | malloc_bin_reloc(); | |
378 | ||
379 | #ifdef CONFIG_SPI | |
bb1f8b4f | 380 | # if !defined(CONFIG_ENV_IS_IN_EEPROM) |
c2f02da2 DH |
381 | spi_init_f(); |
382 | # endif | |
383 | spi_init_r(); | |
384 | #endif | |
385 | ||
386 | /* relocate environment function pointers etc. */ | |
387 | env_relocate(); | |
388 | ||
389 | #if defined(CONFIG_BOARD_LATE_INIT) | |
390 | board_late_init(); | |
391 | #endif | |
392 | ||
393 | s = getenv("ethaddr"); | |
394 | for (i = 0; i < 6; ++i) { | |
395 | bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0; | |
396 | if (s) | |
397 | s = (*e) ? e + 1 : e; | |
398 | } | |
399 | ||
400 | #ifdef CONFIG_HAS_ETH1 | |
401 | /* handle the 2nd ethernet address */ | |
402 | ||
403 | s = getenv("eth1addr"); | |
404 | ||
405 | for (i = 0; i < 6; ++i) { | |
406 | bd->bi_enet1addr[i] = s ? simple_strtoul(s, &e, 16) : 0; | |
407 | if (s) | |
408 | s = (*e) ? e + 1 : e; | |
409 | } | |
410 | #endif | |
411 | ||
32628c50 | 412 | #ifdef CONFIG_ID_EEPROM |
c2f02da2 DH |
413 | mac_read_from_eeprom(); |
414 | #endif | |
415 | ||
416 | /* IP Address */ | |
417 | bd->bi_ip_addr = getenv_IPaddr("ipaddr"); | |
418 | #if defined(CONFIG_PCI) | |
419 | /* | |
420 | * Do pci configuration | |
421 | */ | |
422 | pci_init(); | |
423 | #endif | |
424 | ||
425 | /* Initialize devices */ | |
426 | devices_init(); | |
427 | ||
428 | /* Initialize the jump table for applications */ | |
429 | jumptable_init(); | |
430 | ||
431 | /* Initialize the console (after the relocation and devices init) */ | |
432 | console_init_r(); | |
433 | ||
434 | #ifdef CONFIG_SERIAL_SOFTWARE_FIFO | |
435 | serial_buffered_init(); | |
436 | #endif | |
437 | ||
438 | #ifdef CONFIG_STATUS_LED | |
439 | status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING); | |
440 | #endif | |
441 | ||
442 | udelay(20); | |
443 | ||
444 | set_timer(0); | |
445 | ||
446 | /* Initialize from environment */ | |
447 | if ((s = getenv("loadaddr")) != NULL) { | |
448 | load_addr = simple_strtoul(s, NULL, 16); | |
449 | } | |
450 | #if defined(CONFIG_CMD_NET) | |
451 | if ((s = getenv("bootfile")) != NULL) { | |
452 | copy_filename(BootFile, s, sizeof(BootFile)); | |
453 | } | |
f2302d44 | 454 | #endif /* CONFIG_CMD_NET */ |
c2f02da2 DH |
455 | |
456 | WATCHDOG_RESET(); | |
457 | ||
458 | #if defined(CONFIG_CMD_DOC) | |
459 | WATCHDOG_RESET(); | |
460 | puts("DOC: "); | |
461 | doc_init(); | |
462 | #endif | |
463 | ||
464 | #if defined(CONFIG_CMD_NET) | |
465 | #if defined(CONFIG_NET_MULTI) | |
466 | WATCHDOG_RESET(); | |
467 | puts("Net: "); | |
468 | #endif | |
469 | eth_initialize(bd); | |
470 | #endif | |
471 | ||
472 | #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R) | |
473 | WATCHDOG_RESET(); | |
474 | debug("Reset Ethernet PHY\n"); | |
475 | reset_phy(); | |
476 | #endif | |
477 | ||
478 | #ifdef CONFIG_POST | |
479 | post_run(NULL, POST_RAM | post_bootmode_get(0)); | |
480 | #endif | |
481 | ||
482 | #if defined(CONFIG_CMD_IDE) | |
483 | WATCHDOG_RESET(); | |
484 | puts("IDE: "); | |
485 | ide_init(); | |
f2302d44 | 486 | #endif /* CONFIG_CMD_IDE */ |
c2f02da2 DH |
487 | |
488 | #ifdef CONFIG_LAST_STAGE_INIT | |
489 | WATCHDOG_RESET(); | |
490 | /* | |
491 | * Some parts can be only initialized if all others (like | |
492 | * Interrupts) are up and running (i.e. the PC-style ISA | |
493 | * keyboard). | |
494 | */ | |
495 | last_stage_init(); | |
496 | #endif | |
497 | ||
498 | #ifdef CONFIG_PS2KBD | |
499 | puts("PS/2: "); | |
500 | kbd_init(); | |
501 | #endif | |
502 | prom_init(); | |
503 | ||
504 | /* main_loop */ | |
505 | for (;;) { | |
506 | WATCHDOG_RESET(); | |
507 | main_loop(); | |
508 | } | |
509 | ||
510 | } | |
511 | ||
512 | void hang(void) | |
513 | { | |
514 | puts("### ERROR ### Please RESET the board ###\n"); | |
515 | #ifdef CONFIG_SHOW_BOOT_PROGRESS | |
516 | show_boot_progress(-30); | |
517 | #endif | |
518 | for (;;) ; | |
519 | } | |
520 | ||
521 | /************************************************************************/ |