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 #ifdef CONFIG_BITBANGMII
56 DECLARE_GLOBAL_DATA_PTR;
59 #define DEBUG_INIT_SEQUENCE
60 #define DEBUG_MEM_LAYOUT
61 #define DEBUG_COMMANDS
64 extern void timer_interrupt_init(void);
65 extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]);
66 extern int prom_init(void);
68 #if defined(CONFIG__CMD_DOC)
72 #if !defined(CONFIG_SYS_NO_FLASH)
73 static char *failed = "*** failed ***\n";
76 #include <environment.h>
78 ulong monitor_flash_len;
80 /************************************************************************
82 ************************************************************************
83 * Some of this code should be moved into the core functions,
84 * but let's get it working (again) first...
87 static int init_baudrate(void)
89 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
93 /***********************************************************************/
96 * All attempts to come up with a "common" initialization sequence
97 * that works for all boards and architectures failed: some of the
98 * requirements are just _too_ different. To get rid of the resulting
99 * mess of board dependend #ifdef'ed code we now make the whole
100 * initialization sequence configurable to the user.
102 * The requirements for any new initalization function is simple: it
103 * receives a pointer to the "global data" structure as it's only
104 * argument, and returns an integer return code, where 0 means
105 * "continue" and != 0 means "fatal error, hang the system".
107 typedef int (init_fnc_t) (void);
109 #define WATCHDOG_RESET(x)
111 /************************************************************************
112 * Initialization sequence *
113 ************************************************************************
116 init_fnc_t *init_sequence[] = {
118 #if defined(CONFIG_BOARD_EARLY_INIT_F)
125 #if defined(CONFIG_CMD_AMBAPP)
138 #if defined(CONFIG_MISC_INIT_F)
146 NULL, /* Terminate this list,
147 * beware: this list will be relocated
148 * which means that NULL will become
149 * NULL+RELOC_OFFSET. We simply make
150 * NULL be -RELOC_OFFSET instead.
154 /************************************************************************
156 * This is the SPARC board initialization routine, running from RAM.
158 ************************************************************************
160 #ifdef DEBUG_INIT_SEQUENCE
161 char *str_init_seq = "INIT_SEQ 00\n";
162 char *str_init_seq_done = "\n\rInit sequence done...\r\n\r\n";
165 void board_init_f(ulong bootflag)
168 init_fnc_t **init_fnc_ptr;
171 #ifndef CONFIG_SYS_NO_FLASH
175 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_OFFSET);
177 /* Clear initial global data */
178 memset((void *)gd, 0, sizeof(gd_t));
180 gd->bd = (bd_t *) (gd + 1); /* At end of global data */
181 gd->baudrate = CONFIG_BAUDRATE;
182 gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
185 bd->bi_memstart = CONFIG_SYS_RAM_BASE;
186 bd->bi_memsize = CONFIG_SYS_RAM_SIZE;
187 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
188 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
189 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
190 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
192 bd->bi_baudrate = CONFIG_BAUDRATE;
193 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
195 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
196 gd->reloc_off = CONFIG_SYS_RELOC_MONITOR_BASE - CONFIG_SYS_MONITOR_BASE;
198 for (init_fnc_ptr = init_sequence, j = 0; *init_fnc_ptr;
199 ++init_fnc_ptr, j++) {
200 #ifdef DEBUG_INIT_SEQUENCE
202 str_init_seq[9] = '0' + (j / 10);
203 str_init_seq[10] = '0' + (j - (j / 10) * 10);
204 serial_puts(str_init_seq);
206 if ((*init_fnc_ptr + gd->reloc_off) () != 0) {
210 #ifdef DEBUG_INIT_SEQUENCE
211 serial_puts(str_init_seq_done);
215 * Now that we have DRAM mapped and working, we can
216 * relocate the code and continue running from DRAM.
218 * Reserve memory at end of RAM for (top down in that order):
219 * - kernel log buffer
223 * - board info struct
225 #ifdef DEBUG_MEM_LAYOUT
226 printf("CONFIG_SYS_MONITOR_BASE: 0x%lx\n", CONFIG_SYS_MONITOR_BASE);
227 printf("CONFIG_ENV_ADDR: 0x%lx\n", CONFIG_ENV_ADDR);
228 printf("CONFIG_SYS_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CONFIG_SYS_RELOC_MONITOR_BASE,
229 CONFIG_SYS_MONITOR_LEN);
230 printf("CONFIG_SYS_MALLOC_BASE: 0x%lx (%d)\n", CONFIG_SYS_MALLOC_BASE,
231 CONFIG_SYS_MALLOC_LEN);
232 printf("CONFIG_SYS_INIT_SP_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_INIT_SP_OFFSET,
233 CONFIG_SYS_STACK_SIZE);
234 printf("CONFIG_SYS_PROM_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_PROM_OFFSET,
235 CONFIG_SYS_PROM_SIZE);
236 printf("CONFIG_SYS_GBL_DATA_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_GBL_DATA_OFFSET,
237 GENERATED_GBL_DATA_SIZE);
241 post_bootmode_init();
242 post_run(NULL, POST_ROM | post_bootmode_get(0));
245 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
247 * We have to relocate the command table manually
249 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
250 ll_entry_count(cmd_tbl_t, cmd));
251 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
253 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
255 do_ambapp_print(NULL, 0, 0, NULL);
258 /* initialize higher level parts of CPU like time base and timers */
262 timer_interrupt_init();
265 * Enable Interrupts before any calls to udelay,
266 * the flash driver may use udelay resulting in
267 * a hang if not timer0 IRQ is enabled.
271 /* The Malloc area is immediately below the monitor copy in RAM */
272 mem_malloc_init(CONFIG_SYS_MALLOC_BASE,
273 CONFIG_SYS_MALLOC_END - CONFIG_SYS_MALLOC_BASE);
275 #if !defined(CONFIG_SYS_NO_FLASH)
278 if ((flash_size = flash_init()) > 0) {
279 # ifdef CONFIG_SYS_FLASH_CHECKSUM
280 print_size(flash_size, "");
282 * Compute and print flash CRC if flashchecksum is set to 'y'
284 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
286 if (getenv_yesno("flashchecksum") == 1) {
287 printf(" CRC: %08lX",
288 crc32(0, (const unsigned char *)CONFIG_SYS_FLASH_BASE,
293 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
294 print_size(flash_size, "\n");
295 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
301 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
302 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
303 #if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
304 bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
306 bd->bi_flashoffset = 0;
308 #else /* CONFIG_SYS_NO_FLASH */
309 bd->bi_flashsize = 0;
310 bd->bi_flashstart = 0;
311 bd->bi_flashoffset = 0;
312 #endif /* !CONFIG_SYS_NO_FLASH */
315 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
321 /* relocate environment function pointers etc. */
324 #if defined(CONFIG_BOARD_LATE_INIT)
328 #ifdef CONFIG_ID_EEPROM
329 mac_read_from_eeprom();
332 #if defined(CONFIG_PCI)
334 * Do pci configuration
339 /* Initialize stdio devices */
342 /* Initialize the jump table for applications */
345 /* Initialize the console (after the relocation and devices init) */
348 #ifdef CONFIG_STATUS_LED
349 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
354 /* Initialize from environment */
355 load_addr = getenv_ulong("loadaddr", 16, load_addr);
359 #if defined(CONFIG_CMD_DOC)
365 #ifdef CONFIG_BITBANGMII
368 #if defined(CONFIG_CMD_NET)
374 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
376 debug("Reset Ethernet PHY\n");
381 post_run(NULL, POST_RAM | post_bootmode_get(0));
384 #if defined(CONFIG_CMD_IDE)
388 #endif /* CONFIG_CMD_IDE */
390 #ifdef CONFIG_LAST_STAGE_INIT
393 * Some parts can be only initialized if all others (like
394 * Interrupts) are up and running (i.e. the PC-style ISA
414 /************************************************************************/