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 void malloc_bin_reloc(void);
66 extern int do_ambapp_print(cmd_tbl_t
* cmdtp
, int flag
, int argc
, char * const argv
[]);
67 extern int prom_init(void);
69 #if defined(CONFIG__CMD_DOC)
73 #if !defined(CONFIG_SYS_NO_FLASH)
74 static char *failed
= "*** failed ***\n";
77 #include <environment.h>
79 ulong monitor_flash_len
;
81 /************************************************************************
83 ************************************************************************
84 * Some of this code should be moved into the core functions,
85 * but let's get it working (again) first...
88 static int init_baudrate(void)
90 char tmp
[64]; /* long enough for environment variables */
91 int i
= getenv_f("baudrate", tmp
, sizeof(tmp
));
93 gd
->baudrate
= (i
> 0)
94 ? (int)simple_strtoul(tmp
, NULL
, 10)
99 /***********************************************************************/
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.
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".
113 typedef int (init_fnc_t
) (void);
115 #define WATCHDOG_RESET(x)
117 /************************************************************************
118 * Initialization sequence *
119 ************************************************************************
122 init_fnc_t
*init_sequence
[] = {
124 #if defined(CONFIG_BOARD_EARLY_INIT_F)
131 #if defined(CONFIG_CMD_AMBAPP)
144 #if defined(CONFIG_MISC_INIT_F)
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.
160 /************************************************************************
162 * This is the SPARC board initialization routine, running from RAM.
164 ************************************************************************
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";
171 void board_init_f(ulong bootflag
)
176 init_fnc_t
**init_fnc_ptr
;
181 #ifndef CONFIG_SYS_NO_FLASH
185 gd
= (gd_t
*) (CONFIG_SYS_GBL_DATA_OFFSET
);
187 /* Clear initial global data */
188 memset((void *)gd
, 0, sizeof(gd_t
));
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
;
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
;
202 bd
->bi_baudrate
= CONFIG_BAUDRATE
;
203 bd
->bi_bootflags
= bootflag
; /* boot / reboot flag (for LynxOS) */
205 gd
->flags
|= GD_FLG_RELOC
; /* tell others: relocation done */
206 gd
->reloc_off
= CONFIG_SYS_RELOC_MONITOR_BASE
- CONFIG_SYS_MONITOR_BASE
;
208 for (init_fnc_ptr
= init_sequence
, j
= 0; *init_fnc_ptr
;
209 ++init_fnc_ptr
, j
++) {
210 #ifdef DEBUG_INIT_SEQUENCE
212 str_init_seq
[9] = '0' + (j
/ 10);
213 str_init_seq
[10] = '0' + (j
- (j
/ 10) * 10);
214 serial_puts(str_init_seq
);
216 if ((*init_fnc_ptr
+ gd
->reloc_off
) () != 0) {
220 #ifdef DEBUG_INIT_SEQUENCE
221 serial_puts(str_init_seq_done
);
225 * Now that we have DRAM mapped and working, we can
226 * relocate the code and continue running from DRAM.
228 * Reserve memory at end of RAM for (top down in that order):
229 * - kernel log buffer
233 * - board info struct
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 GENERATED_GBL_DATA_SIZE
);
251 post_bootmode_init();
252 post_run(NULL
, POST_ROM
| post_bootmode_get(0));
255 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
257 * We have to relocate the command table manually
259 fixup_cmdtable(&__u_boot_cmd_start
,
260 (ulong
)(&__u_boot_cmd_end
- &__u_boot_cmd_start
));
261 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
263 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
265 do_ambapp_print(NULL
, 0, 0, NULL
);
268 /* initialize higher level parts of CPU like time base and timers */
272 timer_interrupt_init();
275 * Enable Interrupts before any calls to udelay,
276 * the flash driver may use udelay resulting in
277 * a hang if not timer0 IRQ is enabled.
281 /* The Malloc area is immediately below the monitor copy in RAM */
282 mem_malloc_init(CONFIG_SYS_MALLOC_BASE
,
283 CONFIG_SYS_MALLOC_END
- CONFIG_SYS_MALLOC_BASE
);
286 #if !defined(CONFIG_SYS_NO_FLASH)
289 if ((flash_size
= flash_init()) > 0) {
290 # ifdef CONFIG_SYS_FLASH_CHECKSUM
291 print_size(flash_size
, "");
293 * Compute and print flash CRC if flashchecksum is set to 'y'
295 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
297 s
= getenv("flashchecksum");
298 if (s
&& (*s
== 'y')) {
299 printf(" CRC: %08lX",
300 crc32(0, (const unsigned char *)CONFIG_SYS_FLASH_BASE
,
305 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
306 print_size(flash_size
, "\n");
307 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
313 bd
->bi_flashstart
= CONFIG_SYS_FLASH_BASE
; /* update start of FLASH memory */
314 bd
->bi_flashsize
= flash_size
; /* size of FLASH memory (final value) */
315 #if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
316 bd
->bi_flashoffset
= monitor_flash_len
; /* reserved area for startup monitor */
318 bd
->bi_flashoffset
= 0;
320 #else /* CONFIG_SYS_NO_FLASH */
321 bd
->bi_flashsize
= 0;
322 bd
->bi_flashstart
= 0;
323 bd
->bi_flashoffset
= 0;
324 #endif /* !CONFIG_SYS_NO_FLASH */
327 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
333 /* relocate environment function pointers etc. */
336 #if defined(CONFIG_BOARD_LATE_INIT)
340 #ifdef CONFIG_ID_EEPROM
341 mac_read_from_eeprom();
345 bd
->bi_ip_addr
= getenv_IPaddr("ipaddr");
346 #if defined(CONFIG_PCI)
348 * Do pci configuration
353 /* Initialize stdio devices */
356 /* Initialize the jump table for applications */
359 /* Initialize the console (after the relocation and devices init) */
362 #ifdef CONFIG_STATUS_LED
363 status_led_set(STATUS_LED_BOOT
, STATUS_LED_BLINKING
);
370 /* Initialize from environment */
371 if ((s
= getenv("loadaddr")) != NULL
) {
372 load_addr
= simple_strtoul(s
, NULL
, 16);
374 #if defined(CONFIG_CMD_NET)
375 if ((s
= getenv("bootfile")) != NULL
) {
376 copy_filename(BootFile
, s
, sizeof(BootFile
));
378 #endif /* CONFIG_CMD_NET */
382 #if defined(CONFIG_CMD_DOC)
388 #ifdef CONFIG_BITBANGMII
391 #if defined(CONFIG_CMD_NET)
392 #if defined(CONFIG_NET_MULTI)
399 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
401 debug("Reset Ethernet PHY\n");
406 post_run(NULL
, POST_RAM
| post_bootmode_get(0));
409 #if defined(CONFIG_CMD_IDE)
413 #endif /* CONFIG_CMD_IDE */
415 #ifdef CONFIG_LAST_STAGE_INIT
418 * Some parts can be only initialized if all others (like
419 * Interrupts) are up and running (i.e. the PC-style ISA
441 puts("### ERROR ### Please RESET the board ###\n");
442 #ifdef CONFIG_SHOW_BOOT_PROGRESS
443 show_boot_progress(-30);
448 /************************************************************************/