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Daniel Hellstromc2f02da2008-03-28 09:47:00 +01001/* 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>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020031#include <stdio_dev.h>
Daniel Hellstromc2f02da2008-03-28 09:47:00 +010032#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
52DECLARE_GLOBAL_DATA_PTR;
53
54/* Debug options
55#define DEBUG_INIT_SEQUENCE
56#define DEBUG_MEM_LAYOUT
57#define DEBUG_COMMANDS
58*/
59
60extern void timer_interrupt_init(void);
61extern void malloc_bin_reloc(void);
62extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
63extern int prom_init(void);
64
65#if defined(CONFIG__CMD_DOC)
66void doc_init(void);
67#endif
68
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020069#if !defined(CONFIG_SYS_NO_FLASH)
Daniel Hellstromc2f02da2008-03-28 09:47:00 +010070static char *failed = "*** failed ***\n";
71#endif
72
73#include <environment.h>
74
75ulong monitor_flash_len;
76
77/*
78 * Begin and End of memory area for malloc(), and current "brk"
79 */
80static ulong mem_malloc_start = 0;
81static ulong mem_malloc_end = 0;
82static 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 */
92static void mem_malloc_init(void)
93{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020094 mem_malloc_start = CONFIG_SYS_MALLOC_BASE;
95 mem_malloc_end = CONFIG_SYS_MALLOC_END;
Daniel Hellstromc2f02da2008-03-28 09:47:00 +010096 mem_malloc_brk = mem_malloc_start;
97 memset((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
98}
99
100void *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
121static 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 */
146typedef int (init_fnc_t) (void);
147
148#define WATCHDOG_RESET(x)
149
150/************************************************************************
151 * Initialization sequence *
152 ************************************************************************
153 */
154
155init_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
200char *str_init_seq = "INIT_SEQ 00\n";
201char *str_init_seq_done = "\n\rInit sequence done...\r\n\r\n";
202#endif
203
204void 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
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200214#ifndef CONFIG_SYS_NO_FLASH
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100215 ulong flash_size;
216#endif
217
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200218 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_OFFSET);
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100219
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;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200228 bd->bi_memstart = CONFIG_SYS_RAM_BASE;
229 bd->bi_memsize = CONFIG_SYS_RAM_SIZE;
230 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
231#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
232 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
233 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100234#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 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200239 gd->reloc_off = CONFIG_SYS_RELOC_MONITOR_BASE - CONFIG_SYS_MONITOR_BASE;
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100240
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
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200269 printf("CONFIG_SYS_MONITOR_BASE: 0x%lx\n", CONFIG_SYS_MONITOR_BASE);
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200270 printf("CONFIG_ENV_ADDR: 0x%lx\n", CONFIG_ENV_ADDR);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200271 printf("CONFIG_SYS_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CONFIG_SYS_RELOC_MONITOR_BASE,
272 CONFIG_SYS_MONITOR_LEN);
273 printf("CONFIG_SYS_MALLOC_BASE: 0x%lx (%d)\n", CONFIG_SYS_MALLOC_BASE,
274 CONFIG_SYS_MALLOC_LEN);
275 printf("CONFIG_SYS_INIT_SP_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_INIT_SP_OFFSET,
276 CONFIG_SYS_STACK_SIZE);
277 printf("CONFIG_SYS_PROM_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_PROM_OFFSET,
278 CONFIG_SYS_PROM_SIZE);
279 printf("CONFIG_SYS_GBL_DATA_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_GBL_DATA_OFFSET,
280 CONFIG_SYS_GBL_DATA_SIZE);
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100281#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 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200308#ifdef CONFIG_SYS_LONGHELP
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100309 if (cmdtp->help) {
310 addr = (ulong) (cmdtp->help) + gd->reloc_off;
311 cmdtp->help = (char *)addr;
312 }
313#endif
314 }
315
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200316#if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100317 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
Stefan Roesec790b042009-05-11 15:50:12 +0200334 /* initialize malloc() area */
335 mem_malloc_init();
336 malloc_bin_reloc();
337
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200338#if !defined(CONFIG_SYS_NO_FLASH)
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100339 puts("FLASH: ");
340
341 if ((flash_size = flash_init()) > 0) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200342# ifdef CONFIG_SYS_FLASH_CHECKSUM
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100343 print_size(flash_size, "");
344 /*
345 * Compute and print flash CRC if flashchecksum is set to 'y'
346 *
347 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
348 */
349 s = getenv("flashchecksum");
350 if (s && (*s == 'y')) {
351 printf(" CRC: %08lX",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200352 crc32(0, (const unsigned char *)CONFIG_SYS_FLASH_BASE,
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100353 flash_size)
354 );
355 }
356 putc('\n');
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200357# else /* !CONFIG_SYS_FLASH_CHECKSUM */
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100358 print_size(flash_size, "\n");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200359# endif /* CONFIG_SYS_FLASH_CHECKSUM */
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100360 } else {
361 puts(failed);
362 hang();
363 }
364
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200365 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100366 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200367#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100368 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
369#else
370 bd->bi_flashoffset = 0;
371#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200372#else /* CONFIG_SYS_NO_FLASH */
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100373 bd->bi_flashsize = 0;
374 bd->bi_flashstart = 0;
375 bd->bi_flashoffset = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200376#endif /* !CONFIG_SYS_NO_FLASH */
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100377
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100378#ifdef CONFIG_SPI
Jean-Christophe PLAGNIOL-VILLARDbb1f8b42008-09-05 09:19:30 +0200379# if !defined(CONFIG_ENV_IS_IN_EEPROM)
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100380 spi_init_f();
381# endif
382 spi_init_r();
383#endif
384
385 /* relocate environment function pointers etc. */
386 env_relocate();
387
388#if defined(CONFIG_BOARD_LATE_INIT)
389 board_late_init();
390#endif
391
Jean-Christophe PLAGNIOL-VILLARD32628c52008-08-30 23:54:58 +0200392#ifdef CONFIG_ID_EEPROM
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100393 mac_read_from_eeprom();
394#endif
395
396 /* IP Address */
397 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
398#if defined(CONFIG_PCI)
399 /*
400 * Do pci configuration
401 */
402 pci_init();
403#endif
404
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200405 /* Initialize stdio devices */
406 stdio_init();
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100407
408 /* Initialize the jump table for applications */
409 jumptable_init();
410
411 /* Initialize the console (after the relocation and devices init) */
412 console_init_r();
413
414#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
415 serial_buffered_init();
416#endif
417
418#ifdef CONFIG_STATUS_LED
419 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
420#endif
421
422 udelay(20);
423
424 set_timer(0);
425
426 /* Initialize from environment */
427 if ((s = getenv("loadaddr")) != NULL) {
428 load_addr = simple_strtoul(s, NULL, 16);
429 }
430#if defined(CONFIG_CMD_NET)
431 if ((s = getenv("bootfile")) != NULL) {
432 copy_filename(BootFile, s, sizeof(BootFile));
433 }
Stefan Roesef2302d42008-08-06 14:05:38 +0200434#endif /* CONFIG_CMD_NET */
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100435
436 WATCHDOG_RESET();
437
438#if defined(CONFIG_CMD_DOC)
439 WATCHDOG_RESET();
440 puts("DOC: ");
441 doc_init();
442#endif
443
444#if defined(CONFIG_CMD_NET)
445#if defined(CONFIG_NET_MULTI)
446 WATCHDOG_RESET();
447 puts("Net: ");
448#endif
449 eth_initialize(bd);
450#endif
451
452#if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
453 WATCHDOG_RESET();
454 debug("Reset Ethernet PHY\n");
455 reset_phy();
456#endif
457
458#ifdef CONFIG_POST
459 post_run(NULL, POST_RAM | post_bootmode_get(0));
460#endif
461
462#if defined(CONFIG_CMD_IDE)
463 WATCHDOG_RESET();
464 puts("IDE: ");
465 ide_init();
Stefan Roesef2302d42008-08-06 14:05:38 +0200466#endif /* CONFIG_CMD_IDE */
Daniel Hellstromc2f02da2008-03-28 09:47:00 +0100467
468#ifdef CONFIG_LAST_STAGE_INIT
469 WATCHDOG_RESET();
470 /*
471 * Some parts can be only initialized if all others (like
472 * Interrupts) are up and running (i.e. the PC-style ISA
473 * keyboard).
474 */
475 last_stage_init();
476#endif
477
478#ifdef CONFIG_PS2KBD
479 puts("PS/2: ");
480 kbd_init();
481#endif
482 prom_init();
483
484 /* main_loop */
485 for (;;) {
486 WATCHDOG_RESET();
487 main_loop();
488 }
489
490}
491
492void hang(void)
493{
494 puts("### ERROR ### Please RESET the board ###\n");
495#ifdef CONFIG_SHOW_BOOT_PROGRESS
496 show_boot_progress(-30);
497#endif
498 for (;;) ;
499}
500
501/************************************************************************/