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Wolfgang Denk6cb142f2006-03-12 02:12:27 +01001/*
2 * U-boot - board.c First C file to be called contains init routines
3 *
Mike Frysingerd5bffeb2008-02-19 00:54:20 -05004 * Copyright (c) 2005-2008 Analog Devices Inc.
Wolfgang Denk6cb142f2006-03-12 02:12:27 +01005 *
6 * (C) Copyright 2000-2004
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 *
Mike Frysingerd5bffeb2008-02-19 00:54:20 -05009 * Licensed under the GPL-2 or later.
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010010 */
11
12#include <common.h>
13#include <command.h>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020014#include <stdio_dev.h>
Mike Frysinger635f3302011-04-29 23:23:28 -040015#include <serial.h>
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010016#include <environment.h>
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050017#include <malloc.h>
Cliff Caie54c8202009-11-20 08:24:43 +000018#include <mmc.h>
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050019#include <net.h>
Mike Frysinger01815c22008-10-06 03:52:24 -040020#include <status_led.h>
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050021#include <version.h>
22
Aubrey.Li3f0606a2007-03-09 13:38:44 +080023#include <asm/cplb.h>
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050024#include <asm/mach-common/bits/mpu.h>
Robin Getzf19fd872009-12-21 16:35:48 -050025#include <kgdb.h>
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050026
27#ifdef CONFIG_CMD_NAND
28#include <nand.h> /* cannot even include nand.h if it isnt configured */
29#endif
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010030
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +020031#ifdef CONFIG_BITBANGMII
32#include <miiphy.h>
33#endif
34
Mike Frysinger9171fc82008-03-30 15:46:13 -040035#if defined(CONFIG_POST)
Aubrey.Li3f0606a2007-03-09 13:38:44 +080036#include <post.h>
37int post_flag;
38#endif
Wolfgang Denkd87080b2006-03-31 18:32:53 +020039
Wolfgang Denk1218abf2007-09-15 20:48:41 +020040DECLARE_GLOBAL_DATA_PTR;
41
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050042__attribute__((always_inline))
43static inline void serial_early_puts(const char *s)
44{
45#ifdef CONFIG_DEBUG_EARLY_SERIAL
46 serial_puts("Early: ");
47 serial_puts(s);
48#endif
49}
50
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010051static int display_banner(void)
52{
Mike Frysingerbb838752011-06-30 18:26:39 -040053 display_options();
Mike Frysinger5d891152010-08-09 17:39:22 -040054 printf("CPU: ADSP %s "
Mike Frysingerfc68f9f2009-01-06 06:16:19 -050055 "(Detected Rev: 0.%d) "
56 "(%s boot)\n",
Mike Frysinger5d891152010-08-09 17:39:22 -040057 gd->bd->bi_cpu,
Mike Frysingerfc68f9f2009-01-06 06:16:19 -050058 bfin_revid(),
59 get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050060 return 0;
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010061}
62
63static int init_baudrate(void)
64{
Simon Glassc1f485a2011-10-13 14:43:08 +000065 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050066 return 0;
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010067}
68
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010069static void display_global_data(void)
70{
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010071 bd_t *bd;
Mike Frysinger03f70532010-01-19 15:39:07 -050072
73#ifndef CONFIG_DEBUG_EARLY_SERIAL
74 return;
75#endif
76
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010077 bd = gd->bd;
Mike Frysingerf541e1d2009-08-24 19:03:18 -040078 printf(" gd: %p\n", gd);
79 printf(" |-flags: %lx\n", gd->flags);
80 printf(" |-board_type: %lx\n", gd->board_type);
Simon Glass5e84e5a2012-10-12 14:21:17 +000081 printf(" |-baudrate: %u\n", gd->baudrate);
Mike Frysingerf541e1d2009-08-24 19:03:18 -040082 printf(" |-have_console: %lx\n", gd->have_console);
83 printf(" |-ram_size: %lx\n", gd->ram_size);
Mike Frysingerf541e1d2009-08-24 19:03:18 -040084 printf(" |-env_addr: %lx\n", gd->env_addr);
85 printf(" |-env_valid: %lx\n", gd->env_valid);
86 printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
87 printf(" \\-bd: %p\n", gd->bd);
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050088 printf(" |-bi_baudrate: %x\n", bd->bi_baudrate);
Mike Frysingerf541e1d2009-08-24 19:03:18 -040089 printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params);
90 printf(" |-bi_memstart: %lx\n", bd->bi_memstart);
91 printf(" |-bi_memsize: %lx\n", bd->bi_memsize);
92 printf(" |-bi_flashstart: %lx\n", bd->bi_flashstart);
93 printf(" |-bi_flashsize: %lx\n", bd->bi_flashsize);
94 printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050095}
Wolfgang Denk6cb142f2006-03-12 02:12:27 +010096
Mike Frysingerd5bffeb2008-02-19 00:54:20 -050097#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
98#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
Aubrey.Li3f0606a2007-03-09 13:38:44 +080099void init_cplbtables(void)
100{
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500101 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
102 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
103 uint32_t extern_memory;
104 size_t i;
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800105
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500106 void icplb_add(uint32_t addr, uint32_t data)
107 {
108 *(ICPLB_ADDR + i) = addr;
109 *(ICPLB_DATA + i) = data;
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800110 }
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500111 void dcplb_add(uint32_t addr, uint32_t data)
112 {
113 *(DCPLB_ADDR + i) = addr;
114 *(DCPLB_DATA + i) = data;
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800115 }
116
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500117 /* populate a few common entries ... we'll let
118 * the memory map and cplb exception handler do
119 * the rest of the work.
120 */
121 i = 0;
122 ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
123 ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
124 DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
125 DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
126
127 icplb_add(0xFFA00000, L1_IMEMORY);
128 dcplb_add(0xFF800000, L1_DMEMORY);
129 ++i;
130
Mike Frysinger7527fee2009-11-09 19:38:23 -0500131 if (CONFIG_MEM_SIZE) {
132 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
133 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
134 mbase &= CPLB_PAGE_MASK;
135 mend &= CPLB_PAGE_MASK;
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500136
Mike Frysinger7527fee2009-11-09 19:38:23 -0500137 icplb_add(mbase, SDRAM_IKERNEL);
138 dcplb_add(mbase, SDRAM_DKERNEL);
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500139 ++i;
Mike Frysinger7527fee2009-11-09 19:38:23 -0500140
141 /*
142 * If the monitor crosses a 4 meg boundary, we'll need
143 * to lock two entries for it. We assume it doesn't
144 * cross two 4 meg boundaries ...
145 */
146 if (mbase != mend) {
147 icplb_add(mend, SDRAM_IKERNEL);
148 dcplb_add(mend, SDRAM_DKERNEL);
149 ++i;
150 }
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500151 }
152
153 icplb_add(0x20000000, SDRAM_INON_CHBL);
154 dcplb_add(0x20000000, SDRAM_EBIU);
155 ++i;
156
157 /* Add entries for the rest of external RAM up to the bootrom */
158 extern_memory = 0;
159
160#ifdef CONFIG_DEBUG_NULL_PTR
161 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
162 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
163 ++i;
164 icplb_add(extern_memory, SDRAM_IKERNEL);
165 dcplb_add(extern_memory, SDRAM_DKERNEL);
166 extern_memory += CPLB_PAGE_SIZE;
167 ++i;
168#endif
169
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200170 while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500171 icplb_add(extern_memory, SDRAM_IGENERIC);
172 dcplb_add(extern_memory, SDRAM_DGENERIC);
173 extern_memory += CPLB_PAGE_SIZE;
174 ++i;
175 }
176 while (i < 16) {
177 icplb_add(0, 0);
178 dcplb_add(0, 0);
179 ++i;
180 }
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800181}
182
Mike Frysingera4932d72012-02-29 22:48:10 -0500183static int global_board_data_init(void)
184{
185#ifndef CONFIG_SYS_GBL_DATA_ADDR
186# define CONFIG_SYS_GBL_DATA_ADDR 0
187#endif
188#ifndef CONFIG_SYS_BD_INFO_ADDR
189# define CONFIG_SYS_BD_INFO_ADDR 0
190#endif
191
192 bd_t *bd;
193
194 if (CONFIG_SYS_GBL_DATA_ADDR) {
195 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
196 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
197 } else {
198 static gd_t _bfin_gd;
199 gd = &_bfin_gd;
200 }
201
202 if (CONFIG_SYS_BD_INFO_ADDR) {
203 bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
204 memset(bd, 0, GENERATED_BD_INFO_SIZE);
205 } else {
206 static bd_t _bfin_bd;
207 bd = &_bfin_bd;
208 }
209 gd->bd = bd;
210
211 bd->bi_r_version = version_string;
Marek Vasut5368c552012-09-23 17:41:24 +0200212 bd->bi_cpu = __stringify(CONFIG_BFIN_CPU);
Mike Frysingera4932d72012-02-29 22:48:10 -0500213 bd->bi_board_name = BFIN_BOARD_NAME;
214 bd->bi_vco = get_vco();
215 bd->bi_cclk = get_cclk();
216 bd->bi_sclk = get_sclk();
217 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
218 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
219
220 return 0;
221}
222
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100223/*
224 * All attempts to come up with a "common" initialization sequence
225 * that works for all boards and architectures failed: some of the
226 * requirements are just _too_ different. To get rid of the resulting
227 * mess of board dependend #ifdef'ed code we now make the whole
228 * initialization sequence configurable to the user.
229 *
230 * The requirements for any new initalization function is simple: it
231 * receives a pointer to the "global data" structure as it's only
232 * argument, and returns an integer return code, where 0 means
233 * "continue" and != 0 means "fatal error, hang the system".
234 */
235
Mike Frysinger0c080aa2010-02-11 20:19:10 -0500236extern int watchdog_init(void);
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500237extern int exception_init(void);
238extern int irq_init(void);
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500239extern int timer_init(void);
240
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100241void board_init_f(ulong bootflag)
242{
Mike Frysinger6dadc912008-10-20 16:15:04 -0400243 char buf[32];
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800244
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500245#ifdef CONFIG_BOARD_EARLY_INIT_F
246 serial_early_puts("Board early init flash\n");
247 board_early_init_f();
248#endif
249
250 serial_early_puts("Init CPLB tables\n");
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800251 init_cplbtables();
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100252
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500253 serial_early_puts("Exceptions setup\n");
254 exception_init();
255
256#ifndef CONFIG_ICACHE_OFF
257 serial_early_puts("Turn on ICACHE\n");
258 icache_enable();
259#endif
260#ifndef CONFIG_DCACHE_OFF
261 serial_early_puts("Turn on DCACHE\n");
262 dcache_enable();
263#endif
264
Mike Frysinger0c080aa2010-02-11 20:19:10 -0500265#ifdef CONFIG_WATCHDOG
266 serial_early_puts("Setting up external watchdog\n");
267 watchdog_init();
268#endif
269
Mike Frysinger78a0ba72008-10-06 03:57:39 -0400270#ifdef DEBUG
Wolfgang Denk25ddd1f2010-10-26 14:34:52 +0200271 if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
Mike Frysinger78a0ba72008-10-06 03:57:39 -0400272 hang();
273#endif
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500274 serial_early_puts("Init global data\n");
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100275
Mike Frysingera4932d72012-02-29 22:48:10 -0500276 global_board_data_init();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800277
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500278 /* Initialize */
279 serial_early_puts("IRQ init\n");
280 irq_init();
281 serial_early_puts("Environment init\n");
282 env_init();
283 serial_early_puts("Baudrate init\n");
284 init_baudrate();
285 serial_early_puts("Serial init\n");
286 serial_init();
Mike Frysinger635f3302011-04-29 23:23:28 -0400287 serial_initialize();
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500288 serial_early_puts("Console init flash\n");
289 console_init_f();
290 serial_early_puts("End of early debugging\n");
291 display_banner();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800292
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100293 checkboard();
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100294 timer_init();
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500295
Mike Frysinger6dadc912008-10-20 16:15:04 -0400296 printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
297 printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
298 printf("System: %s MHz\n", strmhz(buf, get_sclk()));
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500299
Mike Frysinger7d69dfd2010-12-20 05:18:55 -0500300 if (CONFIG_MEM_SIZE) {
301 printf("RAM: ");
Mike Frysingera4932d72012-02-29 22:48:10 -0500302 print_size(gd->bd->bi_memsize, "\n");
Mike Frysinger7d69dfd2010-12-20 05:18:55 -0500303 }
304
Mike Frysinger9171fc82008-03-30 15:46:13 -0400305#if defined(CONFIG_POST)
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800306 post_init_f();
307 post_bootmode_init();
308 post_run(NULL, POST_ROM | post_bootmode_get(0));
309#endif
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500310
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100311 board_init_r((gd_t *) gd, 0x20000010);
312}
313
Mike Frysinger8996d162009-02-22 16:02:27 -0500314static void board_net_init_r(bd_t *bd)
315{
Luigi 'Comio' Mantellini310cecb2009-10-10 12:42:21 +0200316#ifdef CONFIG_BITBANGMII
317 bb_miiphy_init();
318#endif
Mike Frysinger8996d162009-02-22 16:02:27 -0500319#ifdef CONFIG_CMD_NET
Mike Frysinger8996d162009-02-22 16:02:27 -0500320 printf("Net: ");
Mike Frysingerde301222012-04-04 18:53:41 +0000321 eth_initialize(bd);
Mike Frysinger8996d162009-02-22 16:02:27 -0500322#endif
323}
324
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100325void board_init_r(gd_t * id, ulong dest_addr)
326{
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100327 bd_t *bd;
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100328 gd = id;
329 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
330 bd = gd->bd;
331
Mike Frysinger9171fc82008-03-30 15:46:13 -0400332#if defined(CONFIG_POST)
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800333 post_output_backlog();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800334#endif
335
Stefan Roesec790b042009-05-11 15:50:12 +0200336 /* initialize malloc() area */
Peter Tysera483a162009-08-21 23:05:20 -0500337 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
Stefan Roesec790b042009-05-11 15:50:12 +0200338
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200339#if !defined(CONFIG_SYS_NO_FLASH)
Mike Frysingerb6edc712008-10-06 04:00:07 -0400340 /* Initialize the flash and protect u-boot by default */
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500341 extern flash_info_t flash_info[];
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500342 puts("Flash: ");
Mike Frysinger45c48952008-10-06 04:01:26 -0400343 ulong size = flash_init();
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500344 print_size(size, "\n");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200345 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
Mike Frysingerb6edc712008-10-06 04:00:07 -0400346 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
347 &flash_info[0]);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200348 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100349 bd->bi_flashsize = size;
350 bd->bi_flashoffset = 0;
351#else
352 bd->bi_flashstart = 0;
353 bd->bi_flashsize = 0;
354 bd->bi_flashoffset = 0;
355#endif
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100356
Mike Frysinger39782722008-10-06 03:55:25 -0400357#ifdef CONFIG_CMD_NAND
358 puts("NAND: ");
359 nand_init(); /* go init the NAND */
360#endif
361
Cliff Caie54c8202009-11-20 08:24:43 +0000362#ifdef CONFIG_GENERIC_MMC
Mike Frysingerd3c07a52010-09-29 14:46:42 -0400363 puts("MMC: ");
Cliff Caie54c8202009-11-20 08:24:43 +0000364 mmc_initialize(bd);
365#endif
366
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100367 /* relocate environment function pointers etc. */
368 env_relocate();
369
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +0200370 /* Initialize stdio devices */
371 stdio_init();
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100372 jumptable_init();
373
374 /* Initialize the console (after the relocation and devices init) */
375 console_init_r();
376
Robin Getzf19fd872009-12-21 16:35:48 -0500377#ifdef CONFIG_CMD_KGDB
378 puts("KGDB: ");
379 kgdb_init();
380#endif
381
Mike Frysinger01815c22008-10-06 03:52:24 -0400382#ifdef CONFIG_STATUS_LED
383 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
384 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
385#endif
386
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100387 /* Initialize from environment */
Simon Glassc1f485a2011-10-13 14:43:08 +0000388 load_addr = getenv_ulong("loadaddr", 16, load_addr);
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800389
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100390#if defined(CONFIG_MISC_INIT_R)
391 /* miscellaneous platform dependent initialisations */
392 misc_init_r();
393#endif
394
Mike Frysinger8996d162009-02-22 16:02:27 -0500395 board_net_init_r(bd);
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800396
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800397 display_global_data();
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800398
Mike Frysinger9171fc82008-03-30 15:46:13 -0400399#if defined(CONFIG_POST)
Aubrey.Li3f0606a2007-03-09 13:38:44 +0800400 if (post_flag)
401 post_run(NULL, POST_RAM | post_bootmode_get(0));
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100402#endif
403
Mike Frysinger05e78252010-12-24 13:19:25 -0500404 if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
Mike Frysinger909878f2009-07-09 01:15:05 -0400405 puts("\nLog buffer from operating system:\n");
406 bfin_os_log_dump();
407 puts("\n");
408 }
409
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100410 /* main_loop() can return to retry autoboot, if so just run it again. */
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500411 for (;;)
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100412 main_loop();
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100413}
414
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100415void hang(void)
416{
Mike Frysinger01815c22008-10-06 03:52:24 -0400417#ifdef CONFIG_STATUS_LED
418 status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
419 status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
420#endif
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100421 puts("### ERROR ### Please RESET the board ###\n");
Mike Frysingerd5bffeb2008-02-19 00:54:20 -0500422 while (1)
423 /* If a JTAG emulator is hooked up, we'll automatically trigger
424 * a breakpoint in it. If one isn't, this is just a NOP.
425 */
426 asm("emuexcpt;");
Wolfgang Denk6cb142f2006-03-12 02:12:27 +0100427}