blob: 623c4d7f0d58a2ee0018c3dbecfdf2ed07c51e04 [file] [log] [blame]
wdenkc0218802003-03-27 12:09:35 +00001/*
2 * (C) Copyright 2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <command.h>
26#include <malloc.h>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020027#include <stdio_dev.h>
Peter Tyser561858e2008-11-03 09:30:59 -060028#include <timestamp.h>
wdenkc0218802003-03-27 12:09:35 +000029#include <version.h>
30#include <net.h>
31#include <environment.h>
Jason McMullane996bc32008-05-30 00:53:37 +090032#include <nand.h>
Stefan Roese9d23fc52008-11-12 13:18:19 +010033#include <onenand_uboot.h>
Jason McMullan89a15502008-05-30 00:53:37 +090034#include <spi.h>
wdenkc0218802003-03-27 12:09:35 +000035
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +020036#ifdef CONFIG_BITBANGMII
37#include <miiphy.h>
38#endif
39
Wolfgang Denkc75eba32005-12-01 02:15:07 +010040DECLARE_GLOBAL_DATA_PTR;
41
wdenkc0218802003-03-27 12:09:35 +000042#undef DEBUG
43
44extern int timer_init(void);
45
wdenk7cb22f92003-12-27 19:24:54 +000046extern int incaip_set_cpuclk(void);
47
wdenk3b57fe02003-05-30 12:48:29 +000048extern ulong uboot_end_data;
49extern ulong uboot_end;
50
51ulong monitor_flash_len;
52
wdenkc0218802003-03-27 12:09:35 +000053const char version_string[] =
Peter Tyser561858e2008-11-03 09:30:59 -060054 U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")";
wdenkc0218802003-03-27 12:09:35 +000055
56static char *failed = "*** failed ***\n";
57
58/*
Jean-Christophe PLAGNIOL-VILLARD5c150102007-11-13 09:11:05 +010059 * mips_io_port_base is the begin of the address space to which x86 style
60 * I/O ports are mapped.
61 */
62unsigned long mips_io_port_base = -1;
wdenkc0218802003-03-27 12:09:35 +000063
Stefan Roesedb08eca2008-11-12 13:18:02 +010064int __board_early_init_f(void)
65{
66 /*
67 * Nothing to do in this dummy implementation
68 */
69 return 0;
70}
71int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));
72
wdenkc0218802003-03-27 12:09:35 +000073
74static int init_func_ram (void)
75{
wdenkc0218802003-03-27 12:09:35 +000076#ifdef CONFIG_BOARD_TYPES
77 int board_type = gd->board_type;
78#else
79 int board_type = 0; /* use dummy arg */
80#endif
81 puts ("DRAM: ");
82
83 if ((gd->ram_size = initdram (board_type)) > 0) {
84 print_size (gd->ram_size, "\n");
85 return (0);
86 }
87 puts (failed);
88 return (1);
89}
90
91static int display_banner(void)
92{
93
94 printf ("\n\n%s\n\n", version_string);
95 return (0);
96}
97
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020098#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +000099static void display_flash_config(ulong size)
100{
101 puts ("Flash: ");
102 print_size (size, "\n");
103}
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100104#endif
wdenkc0218802003-03-27 12:09:35 +0000105
106static int init_baudrate (void)
107{
Wolfgang Denkf013dac2005-12-04 00:40:34 +0100108 char tmp[64]; /* long enough for environment variables */
Wolfgang Denkcdb74972010-07-24 21:55:43 +0200109 int i = getenv_f("baudrate", tmp, sizeof (tmp));
wdenkc0218802003-03-27 12:09:35 +0000110
111 gd->baudrate = (i > 0)
112 ? (int) simple_strtoul (tmp, NULL, 10)
113 : CONFIG_BAUDRATE;
114
115 return (0);
116}
117
118
119/*
120 * Breath some life into the board...
121 *
122 * The first part of initialization is running from Flash memory;
123 * its main purpose is to initialize the RAM so that we
124 * can relocate the monitor code to RAM.
125 */
126
127/*
128 * All attempts to come up with a "common" initialization sequence
129 * that works for all boards and architectures failed: some of the
130 * requirements are just _too_ different. To get rid of the resulting
131 * mess of board dependend #ifdef'ed code we now make the whole
132 * initialization sequence configurable to the user.
133 *
134 * The requirements for any new initalization function is simple: it
135 * receives a pointer to the "global data" structure as it's only
136 * argument, and returns an integer return code, where 0 means
137 * "continue" and != 0 means "fatal error, hang the system".
138 */
139typedef int (init_fnc_t) (void);
140
141init_fnc_t *init_sequence[] = {
Stefan Roesedb08eca2008-11-12 13:18:02 +0100142 board_early_init_f,
wdenkc0218802003-03-27 12:09:35 +0000143 timer_init,
144 env_init, /* initialize environment */
wdenk7cb22f92003-12-27 19:24:54 +0000145#ifdef CONFIG_INCA_IP
146 incaip_set_cpuclk, /* set cpu clock according to environment variable */
147#endif
wdenkc0218802003-03-27 12:09:35 +0000148 init_baudrate, /* initialze baudrate settings */
149 serial_init, /* serial communications setup */
150 console_init_f,
151 display_banner, /* say that we are here */
wdenk85ec0bc2003-03-31 16:34:49 +0000152 checkboard,
wdenkc0218802003-03-27 12:09:35 +0000153 init_func_ram,
154 NULL,
155};
156
157
158void board_init_f(ulong bootflag)
159{
wdenkc0218802003-03-27 12:09:35 +0000160 gd_t gd_data, *id;
161 bd_t *bd;
162 init_fnc_t **init_fnc_ptr;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200163 ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_SYS_MONITOR_BASE;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100164 ulong *s;
wdenkc0218802003-03-27 12:09:35 +0000165
wdenk69459792004-05-29 16:53:29 +0000166 /* Pointer is writable since we allocated a register for it.
167 */
wdenkc0218802003-03-27 12:09:35 +0000168 gd = &gd_data;
wdenk93f6a672004-07-01 20:28:03 +0000169 /* compiler optimization barrier needed for GCC >= 3.4 */
170 __asm__ __volatile__("": : :"memory");
171
wdenk27b207f2003-07-24 23:38:38 +0000172 memset ((void *)gd, 0, sizeof (gd_t));
wdenkc0218802003-03-27 12:09:35 +0000173
174 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
175 if ((*init_fnc_ptr)() != 0) {
176 hang ();
177 }
178 }
179
180 /*
181 * Now that we have DRAM mapped and working, we can
182 * relocate the code and continue running from DRAM.
183 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200184 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
wdenkc0218802003-03-27 12:09:35 +0000185
wdenk69459792004-05-29 16:53:29 +0000186 /* We can reserve some RAM "on top" here.
187 */
wdenkc0218802003-03-27 12:09:35 +0000188
wdenk69459792004-05-29 16:53:29 +0000189 /* round down to next 4 kB limit.
190 */
wdenkc0218802003-03-27 12:09:35 +0000191 addr &= ~(4096 - 1);
wdenk69459792004-05-29 16:53:29 +0000192 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
wdenk8bde7f72003-06-27 21:31:46 +0000193
wdenk69459792004-05-29 16:53:29 +0000194 /* Reserve memory for U-Boot code, data & bss
195 * round down to next 16 kB limit
196 */
wdenkc0218802003-03-27 12:09:35 +0000197 addr -= len;
wdenk3b57fe02003-05-30 12:48:29 +0000198 addr &= ~(16 * 1024 - 1);
wdenkc0218802003-03-27 12:09:35 +0000199
wdenk69459792004-05-29 16:53:29 +0000200 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
wdenkc0218802003-03-27 12:09:35 +0000201
wdenk69459792004-05-29 16:53:29 +0000202 /* Reserve memory for malloc() arena.
203 */
wdenkc0218802003-03-27 12:09:35 +0000204 addr_sp = addr - TOTAL_MALLOC_LEN;
wdenk69459792004-05-29 16:53:29 +0000205 debug ("Reserving %dk for malloc() at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000206 TOTAL_MALLOC_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000207
208 /*
209 * (permanently) allocate a Board Info struct
210 * and a permanent copy of the "global" data
211 */
212 addr_sp -= sizeof(bd_t);
213 bd = (bd_t *)addr_sp;
214 gd->bd = bd;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200215 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000216 sizeof(bd_t), addr_sp);
wdenk69459792004-05-29 16:53:29 +0000217
wdenkc0218802003-03-27 12:09:35 +0000218 addr_sp -= sizeof(gd_t);
219 id = (gd_t *)addr_sp;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200220 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
wdenkc0218802003-03-27 12:09:35 +0000221 sizeof (gd_t), addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000222
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100223 /* Reserve memory for boot params.
wdenk69459792004-05-29 16:53:29 +0000224 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200225 addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
wdenkc0218802003-03-27 12:09:35 +0000226 bd->bi_boot_params = addr_sp;
wdenk69459792004-05-29 16:53:29 +0000227 debug ("Reserving %dk for boot params() at: %08lx\n",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200228 CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
wdenkc0218802003-03-27 12:09:35 +0000229
230 /*
231 * Finally, we set up a new (bigger) stack.
232 *
233 * Leave some safety gap for SP, force alignment on 16 byte boundary
234 * Clear initial stack frame
235 */
236 addr_sp -= 16;
237 addr_sp &= ~0xF;
Wolfgang Denkc75eba32005-12-01 02:15:07 +0100238 s = (ulong *)addr_sp;
239 *s-- = 0;
240 *s-- = 0;
241 addr_sp = (ulong)s;
wdenk69459792004-05-29 16:53:29 +0000242 debug ("Stack Pointer at: %08lx\n", addr_sp);
243
wdenkc0218802003-03-27 12:09:35 +0000244 /*
245 * Save local variables to board info struct
246 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200247 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
wdenkc0218802003-03-27 12:09:35 +0000248 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
249 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
250
wdenk27b207f2003-07-24 23:38:38 +0000251 memcpy (id, (void *)gd, sizeof (gd_t));
wdenk3e386912003-04-05 00:53:31 +0000252
wdenkc0218802003-03-27 12:09:35 +0000253 relocate_code (addr_sp, id, addr);
254
255 /* NOTREACHED - relocate_code() does not return */
256}
257/************************************************************************
258 *
259 * This is the next part if the initialization sequence: we are now
260 * running from RAM and have a "normal" C environment, i. e. global
261 * data can be written, BSS has been cleared, the stack size in not
262 * that critical any more, etc.
263 *
264 ************************************************************************
265 */
266
267void board_init_r (gd_t *id, ulong dest_addr)
268{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200269#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000270 ulong size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100271#endif
wdenkc0218802003-03-27 12:09:35 +0000272 extern void malloc_bin_reloc (void);
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200273#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000274 extern char * env_name_spec;
275#endif
Shinya Kuribayashic06326c2009-05-16 09:12:09 +0900276 char *s;
wdenkc0218802003-03-27 12:09:35 +0000277 bd_t *bd;
wdenkc0218802003-03-27 12:09:35 +0000278
279 gd = id;
280 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
281
wdenk69459792004-05-29 16:53:29 +0000282 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
wdenkc0218802003-03-27 12:09:35 +0000283
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200284 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
wdenkc0218802003-03-27 12:09:35 +0000285
wdenk3b57fe02003-05-30 12:48:29 +0000286 monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
287
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200288#if defined(CONFIG_NEEDS_MANUAL_RELOC)
wdenkc0218802003-03-27 12:09:35 +0000289 /*
290 * We have to relocate the command table manually
291 */
Heiko Schocher620f1f62010-09-17 13:10:33 +0200292 fixup_cmdtable(&__u_boot_cmd_start,
293 (ulong)(&__u_boot_cmd_end - &__u_boot_cmd_start));
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200294#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
wdenkc0218802003-03-27 12:09:35 +0000295
wdenkc0218802003-03-27 12:09:35 +0000296 /* there are some other pointer constants we must deal with */
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200297#ifndef CONFIG_ENV_IS_NOWHERE
wdenkc0218802003-03-27 12:09:35 +0000298 env_name_spec += gd->reloc_off;
299#endif
wdenk8bde7f72003-06-27 21:31:46 +0000300
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100301 bd = gd->bd;
302
Peter Tyserd4e8ada2009-08-21 23:05:21 -0500303 /* The Malloc area is immediately below the monitor copy in DRAM */
Peter Tysera483a162009-08-21 23:05:20 -0500304 mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
305 TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN);
Stefan Roesec790b042009-05-11 15:50:12 +0200306 malloc_bin_reloc();
307
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200308#ifndef CONFIG_SYS_NO_FLASH
wdenkc0218802003-03-27 12:09:35 +0000309 /* configure available FLASH banks */
310 size = flash_init();
311 display_flash_config (size);
wdenkc0218802003-03-27 12:09:35 +0000312 bd->bi_flashsize = size;
Jean-Christophe PLAGNIOL-VILLARDbeeccf72008-02-17 16:58:04 +0100313#endif
314
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200315 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
316#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
wdenk3b57fe02003-05-30 12:48:29 +0000317 bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
wdenkc0218802003-03-27 12:09:35 +0000318#else
319 bd->bi_flashoffset = 0;
320#endif
321
Stefan Roese9d23fc52008-11-12 13:18:19 +0100322#ifdef CONFIG_CMD_NAND
323 puts ("NAND: ");
324 nand_init (); /* go init the NAND */
325#endif
326
327#if defined(CONFIG_CMD_ONENAND)
328 onenand_init();
329#endif
330
wdenkc0218802003-03-27 12:09:35 +0000331 /* relocate environment function pointers etc. */
332 env_relocate();
333
wdenkc0218802003-03-27 12:09:35 +0000334 /* IP Address */
335 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
336
wdenkf4863a72004-02-07 01:27:10 +0000337#if defined(CONFIG_PCI)
338 /*
339 * Do pci configuration
340 */
341 pci_init();
342#endif
343
wdenkc0218802003-03-27 12:09:35 +0000344/** leave this here (after malloc(), environment and PCI are working) **/
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200345 /* Initialize stdio devices */
346 stdio_init ();
wdenkc0218802003-03-27 12:09:35 +0000347
wdenk27b207f2003-07-24 23:38:38 +0000348 jumptable_init ();
wdenkc0218802003-03-27 12:09:35 +0000349
350 /* Initialize the console (after the relocation and devices init) */
351 console_init_r ();
352/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
353
wdenk3e386912003-04-05 00:53:31 +0000354 /* Initialize from environment */
355 if ((s = getenv ("loadaddr")) != NULL) {
356 load_addr = simple_strtoul (s, NULL, 16);
357 }
Jon Loeliger7def6b32007-07-09 18:02:11 -0500358#if defined(CONFIG_CMD_NET)
wdenk3e386912003-04-05 00:53:31 +0000359 if ((s = getenv ("bootfile")) != NULL) {
360 copy_filename (BootFile, s, sizeof (BootFile));
361 }
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500362#endif
wdenk3e386912003-04-05 00:53:31 +0000363
Jason McMullan89a15502008-05-30 00:53:37 +0900364#ifdef CONFIG_CMD_SPI
365 puts ("SPI: ");
366 spi_init (); /* go init the SPI */
367 puts ("ready\n");
368#endif
369
wdenk3e386912003-04-05 00:53:31 +0000370#if defined(CONFIG_MISC_INIT_R)
371 /* miscellaneous platform dependent initialisations */
372 misc_init_r ();
373#endif
374
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +0200375#ifdef CONFIG_BITBANGMII
376 bb_miiphy_init();
377#endif
Jon Loeliger7def6b32007-07-09 18:02:11 -0500378#if defined(CONFIG_CMD_NET)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200379#if defined(CONFIG_NET_MULTI)
wdenkc0218802003-03-27 12:09:35 +0000380 puts ("Net: ");
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200381#endif
wdenkc0218802003-03-27 12:09:35 +0000382 eth_initialize(gd->bd);
383#endif
384
385 /* main_loop() can return to retry autoboot, if so just run it again. */
386 for (;;) {
387 main_loop ();
388 }
389
390 /* NOTREACHED - no way out of command loop except booting */
391}
392
393void hang (void)
394{
395 puts ("### ERROR ### Please RESET the board ###\n");
396 for (;;);
397}