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12#include <common.h>
13#include <command.h>
14#include <stdio_dev.h>
15#include <environment.h>
16#include <malloc.h>
17#include <mmc.h>
18#include <net.h>
19#include <timestamp.h>
20#include <status_led.h>
21#include <version.h>
22
23#include <asm/cplb.h>
24#include <asm/mach-common/bits/mpu.h>
25#include <kgdb.h>
26
27#ifdef CONFIG_CMD_NAND
28#include <nand.h>
29#endif
30
31#ifdef CONFIG_BITBANGMII
32#include <miiphy.h>
33#endif
34
35#if defined(CONFIG_POST)
36#include <post.h>
37int post_flag;
38#endif
39
40DECLARE_GLOBAL_DATA_PTR;
41
42const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
43
44__attribute__((always_inline))
45static inline void serial_early_puts(const char *s)
46{
47#ifdef CONFIG_DEBUG_EARLY_SERIAL
48 serial_puts("Early: ");
49 serial_puts(s);
50#endif
51}
52
53static int display_banner(void)
54{
55 printf("\n\n%s\n\n", version_string);
56 printf("CPU: ADSP %s "
57 "(Detected Rev: 0.%d) "
58 "(%s boot)\n",
59 gd->bd->bi_cpu,
60 bfin_revid(),
61 get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
62 return 0;
63}
64
65static int init_baudrate(void)
66{
67 char baudrate[15];
68 int i = getenv_f("baudrate", baudrate, sizeof(baudrate));
69 gd->bd->bi_baudrate = gd->baudrate = (i > 0)
70 ? simple_strtoul(baudrate, NULL, 10)
71 : CONFIG_BAUDRATE;
72 return 0;
73}
74
75static void display_global_data(void)
76{
77 bd_t *bd;
78
79#ifndef CONFIG_DEBUG_EARLY_SERIAL
80 return;
81#endif
82
83 bd = gd->bd;
84 printf(" gd: %p\n", gd);
85 printf(" |-flags: %lx\n", gd->flags);
86 printf(" |-board_type: %lx\n", gd->board_type);
87 printf(" |-baudrate: %lu\n", gd->baudrate);
88 printf(" |-have_console: %lx\n", gd->have_console);
89 printf(" |-ram_size: %lx\n", gd->ram_size);
90 printf(" |-env_addr: %lx\n", gd->env_addr);
91 printf(" |-env_valid: %lx\n", gd->env_valid);
92 printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
93 printf(" \\-bd: %p\n", gd->bd);
94 printf(" |-bi_baudrate: %x\n", bd->bi_baudrate);
95 printf(" |-bi_ip_addr: %lx\n", bd->bi_ip_addr);
96 printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params);
97 printf(" |-bi_memstart: %lx\n", bd->bi_memstart);
98 printf(" |-bi_memsize: %lx\n", bd->bi_memsize);
99 printf(" |-bi_flashstart: %lx\n", bd->bi_flashstart);
100 printf(" |-bi_flashsize: %lx\n", bd->bi_flashsize);
101 printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
102}
103
104#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
105#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
106void init_cplbtables(void)
107{
108 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
109 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
110 uint32_t extern_memory;
111 size_t i;
112
113 void icplb_add(uint32_t addr, uint32_t data)
114 {
115 *(ICPLB_ADDR + i) = addr;
116 *(ICPLB_DATA + i) = data;
117 }
118 void dcplb_add(uint32_t addr, uint32_t data)
119 {
120 *(DCPLB_ADDR + i) = addr;
121 *(DCPLB_DATA + i) = data;
122 }
123
124
125
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127
128 i = 0;
129 ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
130 ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
131 DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
132 DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
133
134 icplb_add(0xFFA00000, L1_IMEMORY);
135 dcplb_add(0xFF800000, L1_DMEMORY);
136 ++i;
137
138 if (CONFIG_MEM_SIZE) {
139 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
140 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
141 mbase &= CPLB_PAGE_MASK;
142 mend &= CPLB_PAGE_MASK;
143
144 icplb_add(mbase, SDRAM_IKERNEL);
145 dcplb_add(mbase, SDRAM_DKERNEL);
146 ++i;
147
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151
152
153 if (mbase != mend) {
154 icplb_add(mend, SDRAM_IKERNEL);
155 dcplb_add(mend, SDRAM_DKERNEL);
156 ++i;
157 }
158 }
159
160 icplb_add(0x20000000, SDRAM_INON_CHBL);
161 dcplb_add(0x20000000, SDRAM_EBIU);
162 ++i;
163
164
165 extern_memory = 0;
166
167#ifdef CONFIG_DEBUG_NULL_PTR
168 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
169 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
170 ++i;
171 icplb_add(extern_memory, SDRAM_IKERNEL);
172 dcplb_add(extern_memory, SDRAM_DKERNEL);
173 extern_memory += CPLB_PAGE_SIZE;
174 ++i;
175#endif
176
177 while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
178 icplb_add(extern_memory, SDRAM_IGENERIC);
179 dcplb_add(extern_memory, SDRAM_DGENERIC);
180 extern_memory += CPLB_PAGE_SIZE;
181 ++i;
182 }
183 while (i < 16) {
184 icplb_add(0, 0);
185 dcplb_add(0, 0);
186 ++i;
187 }
188}
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202
203extern int watchdog_init(void);
204extern int exception_init(void);
205extern int irq_init(void);
206extern int timer_init(void);
207
208void board_init_f(ulong bootflag)
209{
210 ulong addr;
211 bd_t *bd;
212 char buf[32];
213
214#ifdef CONFIG_BOARD_EARLY_INIT_F
215 serial_early_puts("Board early init flash\n");
216 board_early_init_f();
217#endif
218
219 serial_early_puts("Init CPLB tables\n");
220 init_cplbtables();
221
222 serial_early_puts("Exceptions setup\n");
223 exception_init();
224
225#ifndef CONFIG_ICACHE_OFF
226 serial_early_puts("Turn on ICACHE\n");
227 icache_enable();
228#endif
229#ifndef CONFIG_DCACHE_OFF
230 serial_early_puts("Turn on DCACHE\n");
231 dcache_enable();
232#endif
233
234#ifdef CONFIG_WATCHDOG
235 serial_early_puts("Setting up external watchdog\n");
236 watchdog_init();
237#endif
238
239#ifdef DEBUG
240 if (CONFIG_SYS_GBL_DATA_SIZE < sizeof(*gd))
241 hang();
242#endif
243 serial_early_puts("Init global data\n");
244 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
245 memset((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
246
247
248 addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));
249
250
251 addr &= ~(4 - 1);
252 bd = (bd_t *) addr;
253 gd->bd = bd;
254 memset((void *)bd, 0, sizeof(bd_t));
255
256 bd->bi_r_version = version_string;
257 bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
258 bd->bi_board_name = BFIN_BOARD_NAME;
259 bd->bi_vco = get_vco();
260 bd->bi_cclk = get_cclk();
261 bd->bi_sclk = get_sclk();
262 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
263 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
264
265
266 serial_early_puts("IRQ init\n");
267 irq_init();
268 serial_early_puts("Environment init\n");
269 env_init();
270 serial_early_puts("Baudrate init\n");
271 init_baudrate();
272 serial_early_puts("Serial init\n");
273 serial_init();
274 serial_early_puts("Console init flash\n");
275 console_init_f();
276 serial_early_puts("End of early debugging\n");
277 display_banner();
278
279 checkboard();
280 timer_init();
281
282 printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
283 printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
284 printf("System: %s MHz\n", strmhz(buf, get_sclk()));
285
286 printf("RAM: ");
287 print_size(bd->bi_memsize, "\n");
288#if defined(CONFIG_POST)
289 post_init_f();
290 post_bootmode_init();
291 post_run(NULL, POST_ROM | post_bootmode_get(0));
292#endif
293
294 board_init_r((gd_t *) gd, 0x20000010);
295}
296
297static void board_net_init_r(bd_t *bd)
298{
299#ifdef CONFIG_BITBANGMII
300 bb_miiphy_init();
301#endif
302#ifdef CONFIG_CMD_NET
303 char *s;
304
305 if ((s = getenv("bootfile")) != NULL)
306 copy_filename(BootFile, s, sizeof(BootFile));
307
308 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
309
310 printf("Net: ");
311 eth_initialize(gd->bd);
312#endif
313}
314
315void board_init_r(gd_t * id, ulong dest_addr)
316{
317 char *s;
318 bd_t *bd;
319 gd = id;
320 gd->flags |= GD_FLG_RELOC;
321 bd = gd->bd;
322
323#if defined(CONFIG_POST)
324 post_output_backlog();
325#endif
326
327
328 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
329
330#if !defined(CONFIG_SYS_NO_FLASH)
331
332 extern flash_info_t flash_info[];
333 puts("Flash: ");
334 ulong size = flash_init();
335 print_size(size, "\n");
336 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
337 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
338 &flash_info[0]);
339 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
340 bd->bi_flashsize = size;
341 bd->bi_flashoffset = 0;
342#else
343 bd->bi_flashstart = 0;
344 bd->bi_flashsize = 0;
345 bd->bi_flashoffset = 0;
346#endif
347
348#ifdef CONFIG_CMD_NAND
349 puts("NAND: ");
350 nand_init();
351#endif
352
353#ifdef CONFIG_GENERIC_MMC
354 puts("MMC: ");
355 mmc_initialize(bd);
356#endif
357
358
359 env_relocate();
360
361
362 stdio_init();
363 jumptable_init();
364
365
366 console_init_r();
367
368#ifdef CONFIG_CMD_KGDB
369 puts("KGDB: ");
370 kgdb_init();
371#endif
372
373#ifdef CONFIG_STATUS_LED
374 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
375 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
376#endif
377
378
379 if ((s = getenv("loadaddr")) != NULL)
380 load_addr = simple_strtoul(s, NULL, 16);
381
382#if defined(CONFIG_MISC_INIT_R)
383
384 misc_init_r();
385#endif
386
387 board_net_init_r(bd);
388
389 display_global_data();
390
391#if defined(CONFIG_POST)
392 if (post_flag)
393 post_run(NULL, POST_RAM | post_bootmode_get(0));
394#endif
395
396 if (bfin_os_log_check()) {
397 puts("\nLog buffer from operating system:\n");
398 bfin_os_log_dump();
399 puts("\n");
400 }
401
402
403 for (;;)
404 main_loop();
405}
406
407void hang(void)
408{
409#ifdef CONFIG_STATUS_LED
410 status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
411 status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
412#endif
413 puts("### ERROR ### Please RESET the board ###\n");
414 while (1)
415
416
417
418 asm("emuexcpt;");
419}
420
