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wdenk4e5ca3e2003-12-08 01:34:36 +00001/*
wdenkbf9e3b32004-02-12 00:47:09 +00002 * (C) Copyright 2003
3 * Josef Baumgartner <josef.baumgartner@telex.de>
4 *
5 * (C) Copyright 2000-2002
wdenk4e5ca3e2003-12-08 01:34:36 +00006 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27#include <common.h>
28#include <watchdog.h>
29#include <command.h>
30#include <malloc.h>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020031#include <stdio_dev.h>
wdenkbf9e3b32004-02-12 00:47:09 +000032
TsiChungLiew8ae158c2007-08-16 15:05:11 -050033#include <asm/immap.h>
wdenkbf9e3b32004-02-12 00:47:09 +000034
Jon Loeliger7def6b32007-07-09 18:02:11 -050035#if defined(CONFIG_CMD_IDE)
wdenk4e5ca3e2003-12-08 01:34:36 +000036#include <ide.h>
37#endif
Jon Loeliger7def6b32007-07-09 18:02:11 -050038#if defined(CONFIG_CMD_SCSI)
wdenk4e5ca3e2003-12-08 01:34:36 +000039#include <scsi.h>
40#endif
Jon Loeliger7def6b32007-07-09 18:02:11 -050041#if defined(CONFIG_CMD_KGDB)
wdenk4e5ca3e2003-12-08 01:34:36 +000042#include <kgdb.h>
43#endif
44#ifdef CONFIG_STATUS_LED
45#include <status_led.h>
46#endif
47#include <net.h>
Marcel Ziswilerb71190f2008-05-01 09:05:26 +020048#include <serial.h>
Jon Loeliger7def6b32007-07-09 18:02:11 -050049#if defined(CONFIG_CMD_BEDBUG)
wdenk4e5ca3e2003-12-08 01:34:36 +000050#include <cmd_bedbug.h>
51#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020052#ifdef CONFIG_SYS_ALLOC_DPRAM
wdenk4e5ca3e2003-12-08 01:34:36 +000053#include <commproc.h>
54#endif
55#include <version.h>
56
stroesee2c22d72004-12-16 17:55:22 +000057#if defined(CONFIG_HARD_I2C) || \
58 defined(CONFIG_SOFT_I2C)
59#include <i2c.h>
60#endif
61
TsiChung Liewa7323bb2008-07-23 17:53:36 -050062#ifdef CONFIG_CMD_SPI
63#include <spi.h>
64#endif
65
TsiChung Liewab6ba842008-08-13 12:07:03 +000066#include <nand.h>
67
Wolfgang Denkd87080b2006-03-31 18:32:53 +020068DECLARE_GLOBAL_DATA_PTR;
69
wdenk4e5ca3e2003-12-08 01:34:36 +000070static char *failed = "*** failed ***\n";
71
72#ifdef CONFIG_PCU_E
73extern flash_info_t flash_info[];
74#endif
75
wdenkbf9e3b32004-02-12 00:47:09 +000076#include <environment.h>
77
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020078#if ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
79 (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
Jean-Christophe PLAGNIOL-VILLARD9314cee2008-09-10 22:47:59 +020080 defined(CONFIG_ENV_IS_IN_NVRAM)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020081#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
wdenk4e5ca3e2003-12-08 01:34:36 +000082#else
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020083#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
wdenk4e5ca3e2003-12-08 01:34:36 +000084#endif
85
wdenkbf9e3b32004-02-12 00:47:09 +000086extern ulong __init_end;
87extern ulong _end;
88
89extern void timer_init(void);
90
91#if defined(CONFIG_WATCHDOG)
92# define INIT_FUNC_WATCHDOG_INIT watchdog_init,
93# define WATCHDOG_DISABLE watchdog_disable
94
95extern int watchdog_init(void);
96extern int watchdog_disable(void);
97#else
98# define INIT_FUNC_WATCHDOG_INIT /* undef */
99# define WATCHDOG_DISABLE /* undef */
100#endif /* CONFIG_WATCHDOG */
101
102ulong monitor_flash_len;
103
wdenk4e5ca3e2003-12-08 01:34:36 +0000104/*
105 * Begin and End of memory area for malloc(), and current "brk"
106 */
wdenkbf9e3b32004-02-12 00:47:09 +0000107static ulong mem_malloc_start = 0;
108static ulong mem_malloc_end = 0;
109static ulong mem_malloc_brk = 0;
wdenk4e5ca3e2003-12-08 01:34:36 +0000110
111/************************************************************************
112 * Utilities *
113 ************************************************************************
114 */
115
116/*
117 * The Malloc area is immediately below the monitor copy in DRAM
118 */
wdenkbf9e3b32004-02-12 00:47:09 +0000119static void mem_malloc_init (void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000120{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200121 ulong dest_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
wdenkbf9e3b32004-02-12 00:47:09 +0000122
wdenk4e5ca3e2003-12-08 01:34:36 +0000123 mem_malloc_end = dest_addr;
124 mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
125 mem_malloc_brk = mem_malloc_start;
126
wdenkbf9e3b32004-02-12 00:47:09 +0000127 memset ((void *) mem_malloc_start,
128 0,
wdenk4e5ca3e2003-12-08 01:34:36 +0000129 mem_malloc_end - mem_malloc_start);
130}
131
132void *sbrk (ptrdiff_t increment)
133{
134 ulong old = mem_malloc_brk;
135 ulong new = old + increment;
136
wdenkbf9e3b32004-02-12 00:47:09 +0000137 if ((new < mem_malloc_start) ||
138 (new > mem_malloc_end) ) {
wdenk4e5ca3e2003-12-08 01:34:36 +0000139 return (NULL);
140 }
141 mem_malloc_brk = new;
wdenkbf9e3b32004-02-12 00:47:09 +0000142 return ((void *)old);
wdenk4e5ca3e2003-12-08 01:34:36 +0000143}
144
wdenkbf9e3b32004-02-12 00:47:09 +0000145/*
146 * All attempts to come up with a "common" initialization sequence
147 * that works for all boards and architectures failed: some of the
148 * requirements are just _too_ different. To get rid of the resulting
149 * mess of board dependend #ifdef'ed code we now make the whole
150 * initialization sequence configurable to the user.
151 *
152 * The requirements for any new initalization function is simple: it
153 * receives a pointer to the "global data" structure as it's only
154 * argument, and returns an integer return code, where 0 means
155 * "continue" and != 0 means "fatal error, hang the system".
156 */
157typedef int (init_fnc_t) (void);
158
159/************************************************************************
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500160 * Init Utilities
wdenkbf9e3b32004-02-12 00:47:09 +0000161 ************************************************************************
162 * Some of this code should be moved into the core functions,
163 * but let's get it working (again) first...
164 */
165
166static int init_baudrate (void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000167{
TsiChung Liew6e370912008-06-24 12:12:16 -0500168 char tmp[64]; /* long enough for environment variables */
wdenkbf9e3b32004-02-12 00:47:09 +0000169 int i = getenv_r ("baudrate", tmp, sizeof (tmp));
wdenk4e5ca3e2003-12-08 01:34:36 +0000170
wdenkbf9e3b32004-02-12 00:47:09 +0000171 gd->baudrate = (i > 0)
172 ? (int) simple_strtoul (tmp, NULL, 10)
173 : CONFIG_BAUDRATE;
174 return (0);
wdenk4e5ca3e2003-12-08 01:34:36 +0000175}
176
wdenkbf9e3b32004-02-12 00:47:09 +0000177/***********************************************************************/
178
179static int init_func_ram (void)
180{
wdenkbf9e3b32004-02-12 00:47:09 +0000181 int board_type = 0; /* use dummy arg */
182 puts ("DRAM: ");
183
184 if ((gd->ram_size = initdram (board_type)) > 0) {
185 print_size (gd->ram_size, "\n");
186 return (0);
187 }
188 puts (failed);
189 return (1);
190}
191
192/***********************************************************************/
193
stroesee2c22d72004-12-16 17:55:22 +0000194#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
195static int init_func_i2c (void)
196{
197 puts ("I2C: ");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200198 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
stroesee2c22d72004-12-16 17:55:22 +0000199 puts ("ready\n");
200 return (0);
201}
202#endif
203
TsiChung Liewa7323bb2008-07-23 17:53:36 -0500204#if defined(CONFIG_HARD_SPI)
205static int init_func_spi (void)
206{
207 puts ("SPI: ");
208 spi_init ();
209 puts ("ready\n");
210 return (0);
211}
212#endif
213
stroesee2c22d72004-12-16 17:55:22 +0000214/***********************************************************************/
215
wdenkbf9e3b32004-02-12 00:47:09 +0000216/************************************************************************
217 * Initialization sequence *
218 ************************************************************************
219 */
220
221init_fnc_t *init_sequence[] = {
Stefan Roesed61ea142007-08-15 14:51:27 +0200222 get_clocks,
wdenkbf9e3b32004-02-12 00:47:09 +0000223 env_init,
224 init_baudrate,
225 serial_init,
226 console_init_f,
227 display_options,
228 checkcpu,
229 checkboard,
stroesee2c22d72004-12-16 17:55:22 +0000230#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
231 init_func_i2c,
232#endif
TsiChung Liewa7323bb2008-07-23 17:53:36 -0500233#if defined(CONFIG_HARD_SPI)
234 init_func_spi,
235#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000236 init_func_ram,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200237#if defined(CONFIG_SYS_DRAM_TEST)
wdenkbf9e3b32004-02-12 00:47:09 +0000238 testdram,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200239#endif /* CONFIG_SYS_DRAM_TEST */
wdenkbf9e3b32004-02-12 00:47:09 +0000240 INIT_FUNC_WATCHDOG_INIT
241 NULL, /* Terminate this list */
242};
243
244
wdenk4e5ca3e2003-12-08 01:34:36 +0000245/************************************************************************
246 *
247 * This is the first part of the initialization sequence that is
248 * implemented in C, but still running from ROM.
249 *
250 * The main purpose is to provide a (serial) console interface as
251 * soon as possible (so we can see any error messages), and to
252 * initialize the RAM so that we can relocate the monitor code to
253 * RAM.
254 *
255 * Be aware of the restrictions: global data is read-only, BSS is not
256 * initialized, and stack space is limited to a few kB.
257 *
258 ************************************************************************
259 */
260
wdenkbf9e3b32004-02-12 00:47:09 +0000261void
262board_init_f (ulong bootflag)
wdenk4e5ca3e2003-12-08 01:34:36 +0000263{
wdenk4e5ca3e2003-12-08 01:34:36 +0000264 bd_t *bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000265 ulong len, addr, addr_sp;
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200266 ulong *paddr;
wdenkbf9e3b32004-02-12 00:47:09 +0000267 gd_t *id;
268 init_fnc_t **init_fnc_ptr;
269#ifdef CONFIG_PRAM
270 int i;
271 ulong reg;
TsiChung Liew6e370912008-06-24 12:12:16 -0500272 char tmp[64]; /* long enough for environment variables */
wdenkbf9e3b32004-02-12 00:47:09 +0000273#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000274
wdenkbf9e3b32004-02-12 00:47:09 +0000275 /* Pointer is writable since we allocated a register for it */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200276 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
wdenk93f6a672004-07-01 20:28:03 +0000277 /* compiler optimization barrier needed for GCC >= 3.4 */
278 __asm__ __volatile__("": : :"memory");
wdenk4e5ca3e2003-12-08 01:34:36 +0000279
wdenkbf9e3b32004-02-12 00:47:09 +0000280 /* Clear initial global data */
281 memset ((void *) gd, 0, sizeof (gd_t));
wdenk4e5ca3e2003-12-08 01:34:36 +0000282
wdenkbf9e3b32004-02-12 00:47:09 +0000283 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
284 if ((*init_fnc_ptr)() != 0) {
285 hang ();
286 }
wdenk4e5ca3e2003-12-08 01:34:36 +0000287 }
wdenk4e5ca3e2003-12-08 01:34:36 +0000288
289 /*
290 * Now that we have DRAM mapped and working, we can
291 * relocate the code and continue running from DRAM.
292 *
293 * Reserve memory at end of RAM for (top down in that order):
wdenkbf9e3b32004-02-12 00:47:09 +0000294 * - protected RAM
295 * - LCD framebuffer
296 * - monitor code
297 * - board info struct
wdenk4e5ca3e2003-12-08 01:34:36 +0000298 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200299 len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
wdenk4e5ca3e2003-12-08 01:34:36 +0000300
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200301 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
wdenk4e5ca3e2003-12-08 01:34:36 +0000302
wdenkbf9e3b32004-02-12 00:47:09 +0000303#ifdef CONFIG_LOGBUFFER
304 /* reserve kernel log buffer */
305 addr -= (LOGBUFF_RESERVE);
306 debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
307#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000308
wdenkbf9e3b32004-02-12 00:47:09 +0000309#ifdef CONFIG_PRAM
310 /*
311 * reserve protected RAM
312 */
313 i = getenv_r ("pram", tmp, sizeof (tmp));
314 reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
315 addr -= (reg << 10); /* size is in kB */
316 debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
317#endif /* CONFIG_PRAM */
318
TsiChungLiew1552af72008-01-14 17:43:33 -0600319 /* round down to next 4 kB limit */
320 addr &= ~(4096 - 1);
321 debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
322
323#ifdef CONFIG_LCD
324 /* reserve memory for LCD display (always full pages) */
325 addr = lcd_setmem (addr);
326 gd->fb_base = addr;
327#endif /* CONFIG_LCD */
328
wdenkbf9e3b32004-02-12 00:47:09 +0000329 /*
330 * reserve memory for U-Boot code, data & bss
331 * round down to next 4 kB limit
332 */
wdenk4e5ca3e2003-12-08 01:34:36 +0000333 addr -= len;
wdenkbf9e3b32004-02-12 00:47:09 +0000334 addr &= ~(4096 - 1);
335
336 debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
337
338 /*
339 * reserve memory for malloc() arena
340 */
341 addr_sp = addr - TOTAL_MALLOC_LEN;
342 debug ("Reserving %dk for malloc() at: %08lx\n",
343 TOTAL_MALLOC_LEN >> 10, addr_sp);
344
345 /*
346 * (permanently) allocate a Board Info struct
347 * and a permanent copy of the "global" data
348 */
349 addr_sp -= sizeof (bd_t);
350 bd = (bd_t *) addr_sp;
351 gd->bd = bd;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200352 debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
wdenkbf9e3b32004-02-12 00:47:09 +0000353 sizeof (bd_t), addr_sp);
354 addr_sp -= sizeof (gd_t);
355 id = (gd_t *) addr_sp;
Wolfgang Denkb64f1902008-07-14 15:06:35 +0200356 debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
wdenkbf9e3b32004-02-12 00:47:09 +0000357 sizeof (gd_t), addr_sp);
358
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200359 /* Reserve memory for boot params. */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200360 addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
wdenkbf9e3b32004-02-12 00:47:09 +0000361 bd->bi_boot_params = addr_sp;
362 debug ("Reserving %dk for boot parameters at: %08lx\n",
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200363 CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
wdenkbf9e3b32004-02-12 00:47:09 +0000364
365 /*
366 * Finally, we set up a new (bigger) stack.
367 *
368 * Leave some safety gap for SP, force alignment on 16 byte boundary
369 * Clear initial stack frame
370 */
371 addr_sp -= 16;
372 addr_sp &= ~0xF;
Marian Balakowicz483a0cf2006-05-09 11:28:36 +0200373
374 paddr = (ulong *)addr_sp;
375 *paddr-- = 0;
376 *paddr-- = 0;
377 addr_sp = (ulong)paddr;
Wolfgang Denk977b50f2006-05-10 17:43:20 +0200378
wdenkbf9e3b32004-02-12 00:47:09 +0000379 debug ("Stack Pointer at: %08lx\n", addr_sp);
wdenk4e5ca3e2003-12-08 01:34:36 +0000380
381 /*
382 * Save local variables to board info struct
383 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200384 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
wdenkbf9e3b32004-02-12 00:47:09 +0000385 bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200386#ifdef CONFIG_SYS_INIT_RAM_ADDR
387 bd->bi_sramstart = CONFIG_SYS_INIT_RAM_ADDR; /* start of SRAM memory */
388 bd->bi_sramsize = CONFIG_SYS_INIT_RAM_END; /* size of SRAM memory */
TsiChung Liew8e585f02007-06-18 13:50:13 -0500389#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200390 bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
wdenk4e5ca3e2003-12-08 01:34:36 +0000391
wdenkbf9e3b32004-02-12 00:47:09 +0000392 bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
wdenk4e5ca3e2003-12-08 01:34:36 +0000393
wdenkbf9e3b32004-02-12 00:47:09 +0000394 WATCHDOG_RESET ();
395 bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
396 bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
TsiChungLiew8ae158c2007-08-16 15:05:11 -0500397#ifdef CONFIG_PCI
398 bd->bi_pcifreq = gd->pci_clk; /* PCI Freq in Hz */
399#endif
400#ifdef CONFIG_EXTRA_CLOCK
401 bd->bi_inpfreq = gd->inp_clk; /* input Freq in Hz */
402 bd->bi_vcofreq = gd->vco_clk; /* vco Freq in Hz */
403 bd->bi_flbfreq = gd->flb_clk; /* flexbus Freq in Hz */
404#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000405 bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
wdenk4e5ca3e2003-12-08 01:34:36 +0000406
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200407#ifdef CONFIG_SYS_EXTBDINFO
wdenk4e5ca3e2003-12-08 01:34:36 +0000408 strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
wdenkbf9e3b32004-02-12 00:47:09 +0000409 strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
wdenk4e5ca3e2003-12-08 01:34:36 +0000410#endif
411
wdenkbf9e3b32004-02-12 00:47:09 +0000412 WATCHDOG_RESET ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000413
wdenkbf9e3b32004-02-12 00:47:09 +0000414#ifdef CONFIG_POST
415 post_bootmode_init();
416 post_run (NULL, POST_ROM | post_bootmode_get(0));
417#endif
418
419 WATCHDOG_RESET();
420
421 memcpy (id, (void *)gd, sizeof (gd_t));
422
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200423 debug ("Start relocate of code from %08x to %08lx\n", CONFIG_SYS_MONITOR_BASE, addr);
wdenkbf9e3b32004-02-12 00:47:09 +0000424 relocate_code (addr_sp, id, addr);
425
426 /* NOTREACHED - jump_to_ram() does not return */
wdenk4e5ca3e2003-12-08 01:34:36 +0000427}
428
wdenk4e5ca3e2003-12-08 01:34:36 +0000429/************************************************************************
430 *
431 * This is the next part if the initialization sequence: we are now
432 * running from RAM and have a "normal" C environment, i. e. global
433 * data can be written, BSS has been cleared, the stack size in not
434 * that critical any more, etc.
435 *
436 ************************************************************************
437 */
wdenkbf9e3b32004-02-12 00:47:09 +0000438void board_init_r (gd_t *id, ulong dest_addr)
wdenk4e5ca3e2003-12-08 01:34:36 +0000439{
wdenk4e5ca3e2003-12-08 01:34:36 +0000440 cmd_tbl_t *cmdtp;
Richard Retanubundc269652009-03-23 13:35:48 -0400441 char *s;
wdenk4e5ca3e2003-12-08 01:34:36 +0000442 bd_t *bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000443 extern void malloc_bin_reloc (void);
wdenk4e5ca3e2003-12-08 01:34:36 +0000444
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200445#ifndef CONFIG_ENV_IS_NOWHERE
wdenkbf9e3b32004-02-12 00:47:09 +0000446 extern char * env_name_spec;
447#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200448#ifndef CONFIG_SYS_NO_FLASH
wdenkbf9e3b32004-02-12 00:47:09 +0000449 ulong flash_size;
450#endif
451 gd = id; /* initialize RAM version of global data */
wdenk4e5ca3e2003-12-08 01:34:36 +0000452 bd = gd->bd;
wdenkbf9e3b32004-02-12 00:47:09 +0000453
454 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
455
TsiChung Liew8e585f02007-06-18 13:50:13 -0500456#ifdef CONFIG_SERIAL_MULTI
457 serial_initialize();
458#endif
459
wdenkbf9e3b32004-02-12 00:47:09 +0000460 debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
461
462 WATCHDOG_RESET ();
463
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200464 gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
wdenkbf9e3b32004-02-12 00:47:09 +0000465
466 monitor_flash_len = (ulong)&__init_end - dest_addr;
467
468 /*
469 * We have to relocate the command table manually
470 */
471 for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
472 ulong addr;
473 addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
474#if 0
475 printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
476 cmdtp->name, (ulong) (cmdtp->cmd), addr);
477#endif
478 cmdtp->cmd =
479 (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
480
481 addr = (ulong)(cmdtp->name) + gd->reloc_off;
482 cmdtp->name = (char *)addr;
483
484 if (cmdtp->usage) {
485 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
486 cmdtp->usage = (char *)addr;
487 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200488#ifdef CONFIG_SYS_LONGHELP
wdenkbf9e3b32004-02-12 00:47:09 +0000489 if (cmdtp->help) {
490 addr = (ulong)(cmdtp->help) + gd->reloc_off;
491 cmdtp->help = (char *)addr;
492 }
493#endif
494 }
495 /* there are some other pointer constants we must deal with */
Jean-Christophe PLAGNIOL-VILLARD93f6d722008-09-10 22:48:00 +0200496#ifndef CONFIG_ENV_IS_NOWHERE
wdenkbf9e3b32004-02-12 00:47:09 +0000497 env_name_spec += gd->reloc_off;
498#endif
499
500 WATCHDOG_RESET ();
501
502#ifdef CONFIG_LOGBUFFER
503 logbuff_init_ptrs ();
504#endif
505#ifdef CONFIG_POST
506 post_output_backlog ();
507 post_reloc ();
508#endif
509 WATCHDOG_RESET();
510
511#if 0
512 /* instruction cache enabled in cpu_init_f() for faster relocation */
513 icache_enable (); /* it's time to enable the instruction cache */
514#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000515
516 /*
517 * Setup trap handlers
518 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200519 trap_init (CONFIG_SYS_SDRAM_BASE);
wdenk4e5ca3e2003-12-08 01:34:36 +0000520
Stefan Roesec790b042009-05-11 15:50:12 +0200521 /* initialize malloc() area */
522 mem_malloc_init ();
523 malloc_bin_reloc ();
524
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200525#if !defined(CONFIG_SYS_NO_FLASH)
wdenk4e5ca3e2003-12-08 01:34:36 +0000526 puts ("FLASH: ");
527
528 if ((flash_size = flash_init ()) > 0) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200529# ifdef CONFIG_SYS_FLASH_CHECKSUM
wdenkbf9e3b32004-02-12 00:47:09 +0000530 print_size (flash_size, "");
wdenk4e5ca3e2003-12-08 01:34:36 +0000531 /*
532 * Compute and print flash CRC if flashchecksum is set to 'y'
533 *
wdenkbf9e3b32004-02-12 00:47:09 +0000534 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
wdenk4e5ca3e2003-12-08 01:34:36 +0000535 */
536 s = getenv ("flashchecksum");
537 if (s && (*s == 'y')) {
538 printf (" CRC: %08lX",
wdenkbf9e3b32004-02-12 00:47:09 +0000539 crc32 (0,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200540 (const unsigned char *) CONFIG_SYS_FLASH_BASE,
wdenkbf9e3b32004-02-12 00:47:09 +0000541 flash_size)
542 );
wdenk4e5ca3e2003-12-08 01:34:36 +0000543 }
544 putc ('\n');
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200545# else /* !CONFIG_SYS_FLASH_CHECKSUM */
wdenkbf9e3b32004-02-12 00:47:09 +0000546 print_size (flash_size, "\n");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200547# endif /* CONFIG_SYS_FLASH_CHECKSUM */
wdenk4e5ca3e2003-12-08 01:34:36 +0000548 } else {
549 puts (failed);
550 hang ();
551 }
552
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200553 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
wdenkbf9e3b32004-02-12 00:47:09 +0000554 bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
555 bd->bi_flashoffset = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200556#else /* CONFIG_SYS_NO_FLASH */
wdenkbf9e3b32004-02-12 00:47:09 +0000557 bd->bi_flashsize = 0;
558 bd->bi_flashstart = 0;
559 bd->bi_flashoffset = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200560#endif /* !CONFIG_SYS_NO_FLASH */
wdenk4e5ca3e2003-12-08 01:34:36 +0000561
562 WATCHDOG_RESET ();
563
564 /* initialize higher level parts of CPU like time base and timers */
565 cpu_init_r ();
566
567 WATCHDOG_RESET ();
568
wdenk4e5ca3e2003-12-08 01:34:36 +0000569#ifdef CONFIG_SPI
Jean-Christophe PLAGNIOL-VILLARDbb1f8b42008-09-05 09:19:30 +0200570# if !defined(CONFIG_ENV_IS_IN_EEPROM)
wdenk4e5ca3e2003-12-08 01:34:36 +0000571 spi_init_f ();
572# endif
573 spi_init_r ();
574#endif
575
576 /* relocate environment function pointers etc. */
577 env_relocate ();
578
wdenkbf9e3b32004-02-12 00:47:09 +0000579 /*
580 * Fill in missing fields of bd_info.
581 * We do this here, where we have "normal" access to the
582 * environment; we used to do this still running from ROM,
583 * where had to use getenv_r(), which can be pretty slow when
584 * the environment is in EEPROM.
585 */
wdenk4e5ca3e2003-12-08 01:34:36 +0000586 bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
587
588 WATCHDOG_RESET ();
589
TsiChung Liew8e585f02007-06-18 13:50:13 -0500590#if defined(CONFIG_PCI)
591 /*
592 * Do pci configuration
593 */
594 pci_init ();
595#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000596
597 /** leave this here (after malloc(), environment and PCI are working) **/
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200598 /* Initialize stdio devices */
599 stdio_init ();
wdenkbf9e3b32004-02-12 00:47:09 +0000600
601 /* Initialize the jump table for applications */
602 jumptable_init ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000603
604 /* Initialize the console (after the relocation and devices init) */
wdenkbf9e3b32004-02-12 00:47:09 +0000605 console_init_r ();
wdenk4e5ca3e2003-12-08 01:34:36 +0000606
stroesee2c22d72004-12-16 17:55:22 +0000607#if defined(CONFIG_MISC_INIT_R)
608 /* miscellaneous platform dependent initialisations */
609 misc_init_r ();
610#endif
611
Jon Loeliger7def6b32007-07-09 18:02:11 -0500612#if defined(CONFIG_CMD_KGDB)
wdenk4e5ca3e2003-12-08 01:34:36 +0000613 WATCHDOG_RESET ();
614 puts ("KGDB: ");
615 kgdb_init ();
616#endif
617
wdenkbf9e3b32004-02-12 00:47:09 +0000618 debug ("U-Boot relocated to %08lx\n", dest_addr);
619
wdenk4e5ca3e2003-12-08 01:34:36 +0000620 /*
621 * Enable Interrupts
622 */
623 interrupt_init ();
wdenkbf9e3b32004-02-12 00:47:09 +0000624
625 /* Must happen after interrupts are initialized since
626 * an irq handler gets installed
627 */
628 timer_init();
629
wdenk42dfe7a2004-03-14 22:25:36 +0000630#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
wdenkbf9e3b32004-02-12 00:47:09 +0000631 serial_buffered_init();
632#endif
633
634#ifdef CONFIG_STATUS_LED
635 status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
636#endif
637
wdenk4e5ca3e2003-12-08 01:34:36 +0000638 udelay (20);
wdenkbf9e3b32004-02-12 00:47:09 +0000639
wdenk4e5ca3e2003-12-08 01:34:36 +0000640 set_timer (0);
641
642 /* Insert function pointers now that we have relocated the code */
643
644 /* Initialize from environment */
645 if ((s = getenv ("loadaddr")) != NULL) {
646 load_addr = simple_strtoul (s, NULL, 16);
647 }
Jon Loeliger7def6b32007-07-09 18:02:11 -0500648#if defined(CONFIG_CMD_NET)
wdenk4e5ca3e2003-12-08 01:34:36 +0000649 if ((s = getenv ("bootfile")) != NULL) {
650 copy_filename (BootFile, s, sizeof (BootFile));
651 }
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500652#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000653
654 WATCHDOG_RESET ();
655
Jon Loeliger7def6b32007-07-09 18:02:11 -0500656#if defined(CONFIG_CMD_DOC)
wdenk4e5ca3e2003-12-08 01:34:36 +0000657 WATCHDOG_RESET ();
wdenkbf9e3b32004-02-12 00:47:09 +0000658 puts ("DOC: ");
659 doc_init ();
660#endif
661
Jon Loeliger7def6b32007-07-09 18:02:11 -0500662#if defined(CONFIG_CMD_NAND)
wdenkbf9e3b32004-02-12 00:47:09 +0000663 WATCHDOG_RESET ();
Markus Klotzbuecherd860c342006-04-25 17:00:33 +0200664 puts ("NAND: ");
wdenkbf9e3b32004-02-12 00:47:09 +0000665 nand_init(); /* go init the NAND */
666#endif
667
Stefan Roesed61ea142007-08-15 14:51:27 +0200668#if defined(CONFIG_CMD_NET)
wdenkbf9e3b32004-02-12 00:47:09 +0000669 WATCHDOG_RESET();
TsiChung Liew8e585f02007-06-18 13:50:13 -0500670#if defined(FEC_ENET)
wdenkbf9e3b32004-02-12 00:47:09 +0000671 eth_init(bd);
672#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500673#if defined(CONFIG_NET_MULTI)
674 puts ("Net: ");
TsiChungLiewab77bc52007-08-15 15:39:17 -0500675 eth_initialize (bd);
TsiChung Liew8e585f02007-06-18 13:50:13 -0500676#endif
677#endif
wdenkbf9e3b32004-02-12 00:47:09 +0000678
679#ifdef CONFIG_POST
680 post_run (NULL, POST_RAM | post_bootmode_get(0));
wdenk4e5ca3e2003-12-08 01:34:36 +0000681#endif
682
Stefan Roesed61ea142007-08-15 14:51:27 +0200683#if defined(CONFIG_CMD_PCMCIA) \
684 && !defined(CONFIG_CMD_IDE)
TsiChung Liew8e585f02007-06-18 13:50:13 -0500685 WATCHDOG_RESET ();
686 puts ("PCMCIA:");
687 pcmcia_init ();
688#endif
689
Stefan Roesed61ea142007-08-15 14:51:27 +0200690#if defined(CONFIG_CMD_IDE)
TsiChung Liew8e585f02007-06-18 13:50:13 -0500691 WATCHDOG_RESET ();
692 puts ("IDE: ");
693 ide_init ();
Stefan Roesed61ea142007-08-15 14:51:27 +0200694#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500695
wdenk4e5ca3e2003-12-08 01:34:36 +0000696#ifdef CONFIG_LAST_STAGE_INIT
697 WATCHDOG_RESET ();
698 /*
699 * Some parts can be only initialized if all others (like
700 * Interrupts) are up and running (i.e. the PC-style ISA
701 * keyboard).
702 */
703 last_stage_init ();
704#endif
705
Jon Loeliger7def6b32007-07-09 18:02:11 -0500706#if defined(CONFIG_CMD_BEDBUG)
wdenk4e5ca3e2003-12-08 01:34:36 +0000707 WATCHDOG_RESET ();
708 bedbug_init ();
709#endif
710
wdenkbf9e3b32004-02-12 00:47:09 +0000711#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
wdenk4e5ca3e2003-12-08 01:34:36 +0000712 /*
713 * Export available size of memory for Linux,
714 * taking into account the protected RAM at top of memory
715 */
716 {
717 ulong pram;
TsiChung Liew6e370912008-06-24 12:12:16 -0500718 char memsz[32];
wdenkbf9e3b32004-02-12 00:47:09 +0000719#ifdef CONFIG_PRAM
720 char *s;
wdenk4e5ca3e2003-12-08 01:34:36 +0000721
722 if ((s = getenv ("pram")) != NULL) {
723 pram = simple_strtoul (s, NULL, 10);
724 } else {
725 pram = CONFIG_PRAM;
726 }
wdenkbf9e3b32004-02-12 00:47:09 +0000727#else
728 pram=0;
729#endif
730#ifdef CONFIG_LOGBUFFER
731 /* Also take the logbuffer into account (pram is in kB) */
732 pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
733#endif
wdenk4e5ca3e2003-12-08 01:34:36 +0000734 sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
735 setenv ("mem", memsz);
736 }
737#endif
738
wdenkbf9e3b32004-02-12 00:47:09 +0000739#ifdef CONFIG_MODEM_SUPPORT
740 {
741 extern int do_mdm_init;
742 do_mdm_init = gd->do_mdm_init;
743 }
744#endif
745
746#ifdef CONFIG_WATCHDOG
747 /* disable watchdog if environment is set */
748 if ((s = getenv ("watchdog")) != NULL) {
749 if (strncmp (s, "off", 3) == 0) {
750 WATCHDOG_DISABLE ();
751 }
752 }
753#endif /* CONFIG_WATCHDOG*/
754
755
wdenk4e5ca3e2003-12-08 01:34:36 +0000756 /* Initialization complete - start the monitor */
757
758 /* main_loop() can return to retry autoboot, if so just run it again. */
759 for (;;) {
760 WATCHDOG_RESET ();
761 main_loop ();
762 }
763
764 /* NOTREACHED - no way out of command loop except booting */
765}
766
wdenkbf9e3b32004-02-12 00:47:09 +0000767
768void hang(void)
wdenk4e5ca3e2003-12-08 01:34:36 +0000769{
770 puts ("### ERROR ### Please RESET the board ###\n");
771 for (;;);
772}