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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 <stdio_dev.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 | #ifdef CONFIG_BITBANGMII | |
53 | #include <miiphy.h> | |
54 | #endif | |
55 | ||
56 | DECLARE_GLOBAL_DATA_PTR; | |
57 | ||
58 | /* Debug options | |
59 | #define DEBUG_INIT_SEQUENCE | |
60 | #define DEBUG_MEM_LAYOUT | |
61 | #define DEBUG_COMMANDS | |
62 | */ | |
63 | ||
64 | extern void timer_interrupt_init(void); | |
65 | extern void malloc_bin_reloc(void); | |
66 | extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]); | |
67 | extern int prom_init(void); | |
68 | ||
69 | #if defined(CONFIG__CMD_DOC) | |
70 | void doc_init(void); | |
71 | #endif | |
72 | ||
73 | #if !defined(CONFIG_SYS_NO_FLASH) | |
74 | static char *failed = "*** failed ***\n"; | |
75 | #endif | |
76 | ||
77 | #include <environment.h> | |
78 | ||
79 | ulong monitor_flash_len; | |
80 | ||
81 | /************************************************************************ | |
82 | * Init Utilities * | |
83 | ************************************************************************ | |
84 | * Some of this code should be moved into the core functions, | |
85 | * but let's get it working (again) first... | |
86 | */ | |
87 | ||
88 | static int init_baudrate(void) | |
89 | { | |
90 | char tmp[64]; /* long enough for environment variables */ | |
91 | int i = getenv_r("baudrate", tmp, sizeof(tmp)); | |
92 | ||
93 | gd->baudrate = (i > 0) | |
94 | ? (int)simple_strtoul(tmp, NULL, 10) | |
95 | : CONFIG_BAUDRATE; | |
96 | return (0); | |
97 | } | |
98 | ||
99 | /***********************************************************************/ | |
100 | ||
101 | /* | |
102 | * All attempts to come up with a "common" initialization sequence | |
103 | * that works for all boards and architectures failed: some of the | |
104 | * requirements are just _too_ different. To get rid of the resulting | |
105 | * mess of board dependend #ifdef'ed code we now make the whole | |
106 | * initialization sequence configurable to the user. | |
107 | * | |
108 | * The requirements for any new initalization function is simple: it | |
109 | * receives a pointer to the "global data" structure as it's only | |
110 | * argument, and returns an integer return code, where 0 means | |
111 | * "continue" and != 0 means "fatal error, hang the system". | |
112 | */ | |
113 | typedef int (init_fnc_t) (void); | |
114 | ||
115 | #define WATCHDOG_RESET(x) | |
116 | ||
117 | /************************************************************************ | |
118 | * Initialization sequence * | |
119 | ************************************************************************ | |
120 | */ | |
121 | ||
122 | init_fnc_t *init_sequence[] = { | |
123 | ||
124 | #if defined(CONFIG_BOARD_EARLY_INIT_F) | |
125 | board_early_init_f, | |
126 | #endif | |
127 | serial_init, | |
128 | ||
129 | init_timebase, | |
130 | ||
131 | #if defined(CONFIG_CMD_AMBAPP) | |
132 | ambapp_init_reloc, | |
133 | #endif | |
134 | ||
135 | env_init, | |
136 | ||
137 | init_baudrate, | |
138 | ||
139 | console_init_f, | |
140 | display_options, | |
141 | ||
142 | checkcpu, | |
143 | checkboard, | |
144 | #if defined(CONFIG_MISC_INIT_F) | |
145 | misc_init_f, | |
146 | #endif | |
147 | ||
148 | #ifdef CONFIG_POST | |
149 | post_init_f, | |
150 | #endif | |
151 | ||
152 | NULL, /* Terminate this list, | |
153 | * beware: this list will be relocated | |
154 | * which means that NULL will become | |
155 | * NULL+RELOC_OFFSET. We simply make | |
156 | * NULL be -RELOC_OFFSET instead. | |
157 | */ | |
158 | }; | |
159 | ||
160 | /************************************************************************ | |
161 | * | |
162 | * This is the SPARC board initialization routine, running from RAM. | |
163 | * | |
164 | ************************************************************************ | |
165 | */ | |
166 | #ifdef DEBUG_INIT_SEQUENCE | |
167 | char *str_init_seq = "INIT_SEQ 00\n"; | |
168 | char *str_init_seq_done = "\n\rInit sequence done...\r\n\r\n"; | |
169 | #endif | |
170 | ||
171 | void board_init_f(ulong bootflag) | |
172 | { | |
173 | cmd_tbl_t *cmdtp; | |
174 | bd_t *bd; | |
175 | unsigned char *s; | |
176 | init_fnc_t **init_fnc_ptr; | |
177 | int j; | |
178 | int i; | |
179 | char *e; | |
180 | ||
181 | #ifndef CONFIG_SYS_NO_FLASH | |
182 | ulong flash_size; | |
183 | #endif | |
184 | ||
185 | gd = (gd_t *) (CONFIG_SYS_GBL_DATA_OFFSET); | |
186 | ||
187 | /* Clear initial global data */ | |
188 | memset((void *)gd, 0, sizeof(gd_t)); | |
189 | ||
190 | gd->bd = (bd_t *) (gd + 1); /* At end of global data */ | |
191 | gd->baudrate = CONFIG_BAUDRATE; | |
192 | gd->cpu_clk = CONFIG_SYS_CLK_FREQ; | |
193 | ||
194 | bd = gd->bd; | |
195 | bd->bi_memstart = CONFIG_SYS_RAM_BASE; | |
196 | bd->bi_memsize = CONFIG_SYS_RAM_SIZE; | |
197 | bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; | |
198 | #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) | |
199 | bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; | |
200 | bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; | |
201 | #endif | |
202 | bd->bi_baudrate = CONFIG_BAUDRATE; | |
203 | bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */ | |
204 | ||
205 | gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ | |
206 | gd->reloc_off = CONFIG_SYS_RELOC_MONITOR_BASE - CONFIG_SYS_MONITOR_BASE; | |
207 | ||
208 | for (init_fnc_ptr = init_sequence, j = 0; *init_fnc_ptr; | |
209 | ++init_fnc_ptr, j++) { | |
210 | #ifdef DEBUG_INIT_SEQUENCE | |
211 | if (j > 9) | |
212 | str_init_seq[9] = '0' + (j / 10); | |
213 | str_init_seq[10] = '0' + (j - (j / 10) * 10); | |
214 | serial_puts(str_init_seq); | |
215 | #endif | |
216 | if ((*init_fnc_ptr + gd->reloc_off) () != 0) { | |
217 | hang(); | |
218 | } | |
219 | } | |
220 | #ifdef DEBUG_INIT_SEQUENCE | |
221 | serial_puts(str_init_seq_done); | |
222 | #endif | |
223 | ||
224 | /* | |
225 | * Now that we have DRAM mapped and working, we can | |
226 | * relocate the code and continue running from DRAM. | |
227 | * | |
228 | * Reserve memory at end of RAM for (top down in that order): | |
229 | * - kernel log buffer | |
230 | * - protected RAM | |
231 | * - LCD framebuffer | |
232 | * - monitor code | |
233 | * - board info struct | |
234 | */ | |
235 | #ifdef DEBUG_MEM_LAYOUT | |
236 | printf("CONFIG_SYS_MONITOR_BASE: 0x%lx\n", CONFIG_SYS_MONITOR_BASE); | |
237 | printf("CONFIG_ENV_ADDR: 0x%lx\n", CONFIG_ENV_ADDR); | |
238 | printf("CONFIG_SYS_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CONFIG_SYS_RELOC_MONITOR_BASE, | |
239 | CONFIG_SYS_MONITOR_LEN); | |
240 | printf("CONFIG_SYS_MALLOC_BASE: 0x%lx (%d)\n", CONFIG_SYS_MALLOC_BASE, | |
241 | CONFIG_SYS_MALLOC_LEN); | |
242 | printf("CONFIG_SYS_INIT_SP_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_INIT_SP_OFFSET, | |
243 | CONFIG_SYS_STACK_SIZE); | |
244 | printf("CONFIG_SYS_PROM_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_PROM_OFFSET, | |
245 | CONFIG_SYS_PROM_SIZE); | |
246 | printf("CONFIG_SYS_GBL_DATA_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_GBL_DATA_OFFSET, | |
247 | CONFIG_SYS_GBL_DATA_SIZE); | |
248 | #endif | |
249 | ||
250 | #ifdef CONFIG_POST | |
251 | post_bootmode_init(); | |
252 | post_run(NULL, POST_ROM | post_bootmode_get(0)); | |
253 | #endif | |
254 | ||
255 | /* | |
256 | * We have to relocate the command table manually | |
257 | */ | |
258 | for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) { | |
259 | ulong addr; | |
260 | addr = (ulong) (cmdtp->cmd) + gd->reloc_off; | |
261 | #if DEBUG_COMMANDS | |
262 | printf("Command \"%s\": 0x%08lx => 0x%08lx\n", | |
263 | cmdtp->name, (ulong) (cmdtp->cmd), addr); | |
264 | #endif | |
265 | cmdtp->cmd = | |
266 | (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr; | |
267 | ||
268 | addr = (ulong) (cmdtp->name) + gd->reloc_off; | |
269 | cmdtp->name = (char *)addr; | |
270 | ||
271 | if (cmdtp->usage) { | |
272 | addr = (ulong) (cmdtp->usage) + gd->reloc_off; | |
273 | cmdtp->usage = (char *)addr; | |
274 | } | |
275 | #ifdef CONFIG_SYS_LONGHELP | |
276 | if (cmdtp->help) { | |
277 | addr = (ulong) (cmdtp->help) + gd->reloc_off; | |
278 | cmdtp->help = (char *)addr; | |
279 | } | |
280 | #endif | |
281 | } | |
282 | ||
283 | #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP) | |
284 | puts("AMBA:\n"); | |
285 | do_ambapp_print(NULL, 0, 0, NULL); | |
286 | #endif | |
287 | ||
288 | /* initialize higher level parts of CPU like time base and timers */ | |
289 | cpu_init_r(); | |
290 | ||
291 | /* start timer */ | |
292 | timer_interrupt_init(); | |
293 | ||
294 | /* | |
295 | * Enable Interrupts before any calls to udelay, | |
296 | * the flash driver may use udelay resulting in | |
297 | * a hang if not timer0 IRQ is enabled. | |
298 | */ | |
299 | interrupt_init(); | |
300 | ||
301 | /* The Malloc area is immediately below the monitor copy in RAM */ | |
302 | mem_malloc_init(CONFIG_SYS_MALLOC_BASE, | |
303 | CONFIG_SYS_MALLOC_END - CONFIG_SYS_MALLOC_BASE); | |
304 | malloc_bin_reloc(); | |
305 | ||
306 | #if !defined(CONFIG_SYS_NO_FLASH) | |
307 | puts("FLASH: "); | |
308 | ||
309 | if ((flash_size = flash_init()) > 0) { | |
310 | # ifdef CONFIG_SYS_FLASH_CHECKSUM | |
311 | print_size(flash_size, ""); | |
312 | /* | |
313 | * Compute and print flash CRC if flashchecksum is set to 'y' | |
314 | * | |
315 | * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX | |
316 | */ | |
317 | s = getenv("flashchecksum"); | |
318 | if (s && (*s == 'y')) { | |
319 | printf(" CRC: %08lX", | |
320 | crc32(0, (const unsigned char *)CONFIG_SYS_FLASH_BASE, | |
321 | flash_size) | |
322 | ); | |
323 | } | |
324 | putc('\n'); | |
325 | # else /* !CONFIG_SYS_FLASH_CHECKSUM */ | |
326 | print_size(flash_size, "\n"); | |
327 | # endif /* CONFIG_SYS_FLASH_CHECKSUM */ | |
328 | } else { | |
329 | puts(failed); | |
330 | hang(); | |
331 | } | |
332 | ||
333 | bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */ | |
334 | bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */ | |
335 | #if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE | |
336 | bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */ | |
337 | #else | |
338 | bd->bi_flashoffset = 0; | |
339 | #endif | |
340 | #else /* CONFIG_SYS_NO_FLASH */ | |
341 | bd->bi_flashsize = 0; | |
342 | bd->bi_flashstart = 0; | |
343 | bd->bi_flashoffset = 0; | |
344 | #endif /* !CONFIG_SYS_NO_FLASH */ | |
345 | ||
346 | #ifdef CONFIG_SPI | |
347 | # if !defined(CONFIG_ENV_IS_IN_EEPROM) | |
348 | spi_init_f(); | |
349 | # endif | |
350 | spi_init_r(); | |
351 | #endif | |
352 | ||
353 | /* relocate environment function pointers etc. */ | |
354 | env_relocate(); | |
355 | ||
356 | #if defined(CONFIG_BOARD_LATE_INIT) | |
357 | board_late_init(); | |
358 | #endif | |
359 | ||
360 | #ifdef CONFIG_ID_EEPROM | |
361 | mac_read_from_eeprom(); | |
362 | #endif | |
363 | ||
364 | /* IP Address */ | |
365 | bd->bi_ip_addr = getenv_IPaddr("ipaddr"); | |
366 | #if defined(CONFIG_PCI) | |
367 | /* | |
368 | * Do pci configuration | |
369 | */ | |
370 | pci_init(); | |
371 | #endif | |
372 | ||
373 | /* Initialize stdio devices */ | |
374 | stdio_init(); | |
375 | ||
376 | /* Initialize the jump table for applications */ | |
377 | jumptable_init(); | |
378 | ||
379 | /* Initialize the console (after the relocation and devices init) */ | |
380 | console_init_r(); | |
381 | ||
382 | #ifdef CONFIG_SERIAL_SOFTWARE_FIFO | |
383 | serial_buffered_init(); | |
384 | #endif | |
385 | ||
386 | #ifdef CONFIG_STATUS_LED | |
387 | status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING); | |
388 | #endif | |
389 | ||
390 | udelay(20); | |
391 | ||
392 | set_timer(0); | |
393 | ||
394 | /* Initialize from environment */ | |
395 | if ((s = getenv("loadaddr")) != NULL) { | |
396 | load_addr = simple_strtoul(s, NULL, 16); | |
397 | } | |
398 | #if defined(CONFIG_CMD_NET) | |
399 | if ((s = getenv("bootfile")) != NULL) { | |
400 | copy_filename(BootFile, s, sizeof(BootFile)); | |
401 | } | |
402 | #endif /* CONFIG_CMD_NET */ | |
403 | ||
404 | WATCHDOG_RESET(); | |
405 | ||
406 | #if defined(CONFIG_CMD_DOC) | |
407 | WATCHDOG_RESET(); | |
408 | puts("DOC: "); | |
409 | doc_init(); | |
410 | #endif | |
411 | ||
412 | #ifdef CONFIG_BITBANGMII | |
413 | bb_miiphy_init(); | |
414 | #endif | |
415 | #if defined(CONFIG_CMD_NET) | |
416 | #if defined(CONFIG_NET_MULTI) | |
417 | WATCHDOG_RESET(); | |
418 | puts("Net: "); | |
419 | #endif | |
420 | eth_initialize(bd); | |
421 | #endif | |
422 | ||
423 | #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R) | |
424 | WATCHDOG_RESET(); | |
425 | debug("Reset Ethernet PHY\n"); | |
426 | reset_phy(); | |
427 | #endif | |
428 | ||
429 | #ifdef CONFIG_POST | |
430 | post_run(NULL, POST_RAM | post_bootmode_get(0)); | |
431 | #endif | |
432 | ||
433 | #if defined(CONFIG_CMD_IDE) | |
434 | WATCHDOG_RESET(); | |
435 | puts("IDE: "); | |
436 | ide_init(); | |
437 | #endif /* CONFIG_CMD_IDE */ | |
438 | ||
439 | #ifdef CONFIG_LAST_STAGE_INIT | |
440 | WATCHDOG_RESET(); | |
441 | /* | |
442 | * Some parts can be only initialized if all others (like | |
443 | * Interrupts) are up and running (i.e. the PC-style ISA | |
444 | * keyboard). | |
445 | */ | |
446 | last_stage_init(); | |
447 | #endif | |
448 | ||
449 | #ifdef CONFIG_PS2KBD | |
450 | puts("PS/2: "); | |
451 | kbd_init(); | |
452 | #endif | |
453 | prom_init(); | |
454 | ||
455 | /* main_loop */ | |
456 | for (;;) { | |
457 | WATCHDOG_RESET(); | |
458 | main_loop(); | |
459 | } | |
460 | ||
461 | } | |
462 | ||
463 | void hang(void) | |
464 | { | |
465 | puts("### ERROR ### Please RESET the board ###\n"); | |
466 | #ifdef CONFIG_SHOW_BOOT_PROGRESS | |
467 | show_boot_progress(-30); | |
468 | #endif | |
469 | for (;;) ; | |
470 | } | |
471 | ||
472 | /************************************************************************/ |