1 /* SPARC Board initialization
3 * (C) Copyright 2000-2006
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
9 * See file CREDITS for list of people who contributed to this
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.
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.
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,
31 #include <stdio_dev.h>
33 #if defined(CONFIG_CMD_IDE)
36 #ifdef CONFIG_STATUS_LED
37 #include <status_led.h>
42 #if defined(CONFIG_POST)
48 #ifdef CONFIG_CMD_AMBAPP
52 DECLARE_GLOBAL_DATA_PTR;
55 #define DEBUG_INIT_SEQUENCE
56 #define DEBUG_MEM_LAYOUT
57 #define DEBUG_COMMANDS
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);
65 #if defined(CONFIG__CMD_DOC)
69 #if !defined(CONFIG_SYS_NO_FLASH)
70 static char *failed = "*** failed ***\n";
73 #include <environment.h>
75 ulong monitor_flash_len;
77 /************************************************************************
79 ************************************************************************
83 * The Malloc area is immediately below the monitor copy in RAM
85 static void mem_malloc_init(void)
87 mem_malloc_start = CONFIG_SYS_MALLOC_BASE;
88 mem_malloc_end = CONFIG_SYS_MALLOC_END;
89 mem_malloc_brk = mem_malloc_start;
90 memset((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
93 /***********************************************************************/
95 /************************************************************************
97 ************************************************************************
98 * Some of this code should be moved into the core functions,
99 * but let's get it working (again) first...
102 static int init_baudrate(void)
104 char tmp[64]; /* long enough for environment variables */
105 int i = getenv_r("baudrate", tmp, sizeof(tmp));
107 gd->baudrate = (i > 0)
108 ? (int)simple_strtoul(tmp, NULL, 10)
113 /***********************************************************************/
116 * All attempts to come up with a "common" initialization sequence
117 * that works for all boards and architectures failed: some of the
118 * requirements are just _too_ different. To get rid of the resulting
119 * mess of board dependend #ifdef'ed code we now make the whole
120 * initialization sequence configurable to the user.
122 * The requirements for any new initalization function is simple: it
123 * receives a pointer to the "global data" structure as it's only
124 * argument, and returns an integer return code, where 0 means
125 * "continue" and != 0 means "fatal error, hang the system".
127 typedef int (init_fnc_t) (void);
129 #define WATCHDOG_RESET(x)
131 /************************************************************************
132 * Initialization sequence *
133 ************************************************************************
136 init_fnc_t *init_sequence[] = {
138 #if defined(CONFIG_BOARD_EARLY_INIT_F)
145 #if defined(CONFIG_CMD_AMBAPP)
158 #if defined(CONFIG_MISC_INIT_F)
166 NULL, /* Terminate this list,
167 * beware: this list will be relocated
168 * which means that NULL will become
169 * NULL+RELOC_OFFSET. We simply make
170 * NULL be -RELOC_OFFSET instead.
174 /************************************************************************
176 * This is the SPARC board initialization routine, running from RAM.
178 ************************************************************************
180 #ifdef DEBUG_INIT_SEQUENCE
181 char *str_init_seq = "INIT_SEQ 00\n";
182 char *str_init_seq_done = "\n\rInit sequence done...\r\n\r\n";
185 void board_init_f(ulong bootflag)
190 init_fnc_t **init_fnc_ptr;
195 #ifndef CONFIG_SYS_NO_FLASH
199 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_OFFSET);
201 /* Clear initial global data */
202 memset((void *)gd, 0, sizeof(gd_t));
204 gd->bd = (bd_t *) (gd + 1); /* At end of global data */
205 gd->baudrate = CONFIG_BAUDRATE;
206 gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
209 bd->bi_memstart = CONFIG_SYS_RAM_BASE;
210 bd->bi_memsize = CONFIG_SYS_RAM_SIZE;
211 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
212 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
213 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
214 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
216 bd->bi_baudrate = CONFIG_BAUDRATE;
217 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
219 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
220 gd->reloc_off = CONFIG_SYS_RELOC_MONITOR_BASE - CONFIG_SYS_MONITOR_BASE;
222 for (init_fnc_ptr = init_sequence, j = 0; *init_fnc_ptr;
223 ++init_fnc_ptr, j++) {
224 #ifdef DEBUG_INIT_SEQUENCE
226 str_init_seq[9] = '0' + (j / 10);
227 str_init_seq[10] = '0' + (j - (j / 10) * 10);
228 serial_puts(str_init_seq);
230 if ((*init_fnc_ptr + gd->reloc_off) () != 0) {
234 #ifdef DEBUG_INIT_SEQUENCE
235 serial_puts(str_init_seq_done);
239 * Now that we have DRAM mapped and working, we can
240 * relocate the code and continue running from DRAM.
242 * Reserve memory at end of RAM for (top down in that order):
243 * - kernel log buffer
247 * - board info struct
249 #ifdef DEBUG_MEM_LAYOUT
250 printf("CONFIG_SYS_MONITOR_BASE: 0x%lx\n", CONFIG_SYS_MONITOR_BASE);
251 printf("CONFIG_ENV_ADDR: 0x%lx\n", CONFIG_ENV_ADDR);
252 printf("CONFIG_SYS_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CONFIG_SYS_RELOC_MONITOR_BASE,
253 CONFIG_SYS_MONITOR_LEN);
254 printf("CONFIG_SYS_MALLOC_BASE: 0x%lx (%d)\n", CONFIG_SYS_MALLOC_BASE,
255 CONFIG_SYS_MALLOC_LEN);
256 printf("CONFIG_SYS_INIT_SP_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_INIT_SP_OFFSET,
257 CONFIG_SYS_STACK_SIZE);
258 printf("CONFIG_SYS_PROM_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_PROM_OFFSET,
259 CONFIG_SYS_PROM_SIZE);
260 printf("CONFIG_SYS_GBL_DATA_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_GBL_DATA_OFFSET,
261 CONFIG_SYS_GBL_DATA_SIZE);
265 post_bootmode_init();
266 post_run(NULL, POST_ROM | post_bootmode_get(0));
270 * We have to relocate the command table manually
272 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
274 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
276 printf("Command \"%s\": 0x%08lx => 0x%08lx\n",
277 cmdtp->name, (ulong) (cmdtp->cmd), addr);
280 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
282 addr = (ulong) (cmdtp->name) + gd->reloc_off;
283 cmdtp->name = (char *)addr;
286 addr = (ulong) (cmdtp->usage) + gd->reloc_off;
287 cmdtp->usage = (char *)addr;
289 #ifdef CONFIG_SYS_LONGHELP
291 addr = (ulong) (cmdtp->help) + gd->reloc_off;
292 cmdtp->help = (char *)addr;
297 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
299 do_ambapp_print(NULL, 0, 0, NULL);
302 /* initialize higher level parts of CPU like time base and timers */
306 timer_interrupt_init();
309 * Enable Interrupts before any calls to udelay,
310 * the flash driver may use udelay resulting in
311 * a hang if not timer0 IRQ is enabled.
315 /* initialize malloc() area */
319 #if !defined(CONFIG_SYS_NO_FLASH)
322 if ((flash_size = flash_init()) > 0) {
323 # ifdef CONFIG_SYS_FLASH_CHECKSUM
324 print_size(flash_size, "");
326 * Compute and print flash CRC if flashchecksum is set to 'y'
328 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
330 s = getenv("flashchecksum");
331 if (s && (*s == 'y')) {
332 printf(" CRC: %08lX",
333 crc32(0, (const unsigned char *)CONFIG_SYS_FLASH_BASE,
338 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
339 print_size(flash_size, "\n");
340 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
346 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
347 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
348 #if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
349 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
351 bd->bi_flashoffset = 0;
353 #else /* CONFIG_SYS_NO_FLASH */
354 bd->bi_flashsize = 0;
355 bd->bi_flashstart = 0;
356 bd->bi_flashoffset = 0;
357 #endif /* !CONFIG_SYS_NO_FLASH */
360 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
366 /* relocate environment function pointers etc. */
369 #if defined(CONFIG_BOARD_LATE_INIT)
373 #ifdef CONFIG_ID_EEPROM
374 mac_read_from_eeprom();
378 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
379 #if defined(CONFIG_PCI)
381 * Do pci configuration
386 /* Initialize stdio devices */
389 /* Initialize the jump table for applications */
392 /* Initialize the console (after the relocation and devices init) */
395 #ifdef CONFIG_SERIAL_SOFTWARE_FIFO
396 serial_buffered_init();
399 #ifdef CONFIG_STATUS_LED
400 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
407 /* Initialize from environment */
408 if ((s = getenv("loadaddr")) != NULL) {
409 load_addr = simple_strtoul(s, NULL, 16);
411 #if defined(CONFIG_CMD_NET)
412 if ((s = getenv("bootfile")) != NULL) {
413 copy_filename(BootFile, s, sizeof(BootFile));
415 #endif /* CONFIG_CMD_NET */
419 #if defined(CONFIG_CMD_DOC)
425 #if defined(CONFIG_CMD_NET)
426 #if defined(CONFIG_NET_MULTI)
433 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
435 debug("Reset Ethernet PHY\n");
440 post_run(NULL, POST_RAM | post_bootmode_get(0));
443 #if defined(CONFIG_CMD_IDE)
447 #endif /* CONFIG_CMD_IDE */
449 #ifdef CONFIG_LAST_STAGE_INIT
452 * Some parts can be only initialized if all others (like
453 * Interrupts) are up and running (i.e. the PC-style ISA
475 puts("### ERROR ### Please RESET the board ###\n");
476 #ifdef CONFIG_SHOW_BOOT_PROGRESS
477 show_boot_progress(-30);
482 /************************************************************************/