2 * U-boot - board.c First C file to be called contains init routines
4 * Copyright (c) 2005-2008 Analog Devices Inc.
6 * (C) Copyright 2000-2004
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9 * Licensed under the GPL-2 or later.
14 #include <stdio_dev.h>
16 #include <environment.h>
20 #include <status_led.h>
24 #include <asm/mach-common/bits/mpu.h>
27 #ifdef CONFIG_CMD_NAND
28 #include <nand.h> /* cannot even include nand.h if it isnt configured */
31 #ifdef CONFIG_BITBANGMII
35 #if defined(CONFIG_POST)
40 DECLARE_GLOBAL_DATA_PTR;
42 __attribute__((always_inline))
43 static inline void serial_early_puts(const char *s)
45 #ifdef CONFIG_DEBUG_EARLY_SERIAL
46 serial_puts("Early: ");
51 static int display_banner(void)
54 printf("CPU: ADSP %s "
55 "(Detected Rev: 0.%d) "
59 get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
63 static int init_baudrate(void)
65 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
69 static void display_global_data(void)
73 #ifndef CONFIG_DEBUG_EARLY_SERIAL
78 printf(" gd: %p\n", gd);
79 printf(" |-flags: %lx\n", gd->flags);
80 printf(" |-board_type: %lx\n", gd->arch.board_type);
81 printf(" |-baudrate: %u\n", gd->baudrate);
82 printf(" |-have_console: %lx\n", gd->have_console);
83 printf(" |-ram_size: %lx\n", gd->ram_size);
84 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);
88 printf(" |-bi_baudrate: %x\n", bd->bi_baudrate);
89 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);
97 #define CPLB_PAGE_SIZE (4 * 1024 * 1024)
98 #define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
99 #if defined(__ADSPBF60x__)
100 #define CPLB_EX_PAGE_SIZE (16 * 1024 * 1024)
101 #define CPLB_EX_PAGE_MASK (~(CPLB_EX_PAGE_SIZE - 1))
103 #define CPLB_EX_PAGE_SIZE CPLB_PAGE_SIZE
104 #define CPLB_EX_PAGE_MASK CPLB_PAGE_MASK
106 void init_cplbtables(void)
108 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
109 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
110 uint32_t extern_memory;
113 void icplb_add(uint32_t addr, uint32_t data)
115 *(ICPLB_ADDR + i) = addr;
116 *(ICPLB_DATA + i) = data;
118 void dcplb_add(uint32_t addr, uint32_t data)
120 *(DCPLB_ADDR + i) = addr;
121 *(DCPLB_DATA + i) = data;
124 /* populate a few common entries ... we'll let
125 * the memory map and cplb exception handler do
126 * the rest of the work.
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;
134 icplb_add(0xFFA00000, L1_IMEMORY);
135 dcplb_add(0xFF800000, L1_DMEMORY);
137 #if defined(__ADSPBF60x__)
139 dcplb_add(CONFIG_SYS_FLASH_BASE, SDRAM_EBIU);
143 if (CONFIG_MEM_SIZE) {
144 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
145 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
146 mbase &= CPLB_PAGE_MASK;
147 mend &= CPLB_PAGE_MASK;
149 icplb_add(mbase, SDRAM_IKERNEL);
150 dcplb_add(mbase, SDRAM_DKERNEL);
154 * If the monitor crosses a 4 meg boundary, we'll need
155 * to lock two entries for it. We assume it doesn't
156 * cross two 4 meg boundaries ...
159 icplb_add(mend, SDRAM_IKERNEL);
160 dcplb_add(mend, SDRAM_DKERNEL);
165 #ifndef __ADSPBF60x__
166 icplb_add(0x20000000, SDRAM_INON_CHBL);
167 dcplb_add(0x20000000, SDRAM_EBIU);
171 /* Add entries for the rest of external RAM up to the bootrom */
174 #ifdef CONFIG_DEBUG_NULL_PTR
175 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
176 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
178 icplb_add(extern_memory, SDRAM_IKERNEL);
179 dcplb_add(extern_memory, SDRAM_DKERNEL);
180 extern_memory += CPLB_PAGE_SIZE;
184 while (i < 16 && extern_memory <
185 (CONFIG_SYS_MONITOR_BASE & CPLB_EX_PAGE_MASK)) {
186 icplb_add(extern_memory, SDRAM_IGENERIC);
187 dcplb_add(extern_memory, SDRAM_DGENERIC);
188 extern_memory += CPLB_EX_PAGE_SIZE;
198 static int global_board_data_init(void)
200 #ifndef CONFIG_SYS_GBL_DATA_ADDR
201 # define CONFIG_SYS_GBL_DATA_ADDR 0
203 #ifndef CONFIG_SYS_BD_INFO_ADDR
204 # define CONFIG_SYS_BD_INFO_ADDR 0
209 if (CONFIG_SYS_GBL_DATA_ADDR) {
210 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
211 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
213 static gd_t _bfin_gd;
217 if (CONFIG_SYS_BD_INFO_ADDR) {
218 bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
219 memset(bd, 0, GENERATED_BD_INFO_SIZE);
221 static bd_t _bfin_bd;
226 bd->bi_r_version = version_string;
227 bd->bi_cpu = __stringify(CONFIG_BFIN_CPU);
228 bd->bi_board_name = BFIN_BOARD_NAME;
229 bd->bi_vco = get_vco();
230 bd->bi_cclk = get_cclk();
231 bd->bi_sclk = get_sclk();
232 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
233 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
234 bd->bi_baudrate = (gd->baudrate > 0)
235 ? simple_strtoul(gd->baudrate, NULL, 10) : CONFIG_BAUDRATE;
241 * All attempts to come up with a "common" initialization sequence
242 * that works for all boards and architectures failed: some of the
243 * requirements are just _too_ different. To get rid of the resulting
244 * mess of board dependend #ifdef'ed code we now make the whole
245 * initialization sequence configurable to the user.
247 * The requirements for any new initalization function is simple: it
248 * receives a pointer to the "global data" structure as it's only
249 * argument, and returns an integer return code, where 0 means
250 * "continue" and != 0 means "fatal error, hang the system".
253 extern int watchdog_init(void);
254 extern int exception_init(void);
255 extern int irq_init(void);
256 extern int timer_init(void);
258 void board_init_f(ulong bootflag)
262 #ifdef CONFIG_BOARD_EARLY_INIT_F
263 serial_early_puts("Board early init flash\n");
264 board_early_init_f();
267 serial_early_puts("Init CPLB tables\n");
270 serial_early_puts("Exceptions setup\n");
273 #ifndef CONFIG_ICACHE_OFF
274 serial_early_puts("Turn on ICACHE\n");
277 #ifndef CONFIG_DCACHE_OFF
278 serial_early_puts("Turn on DCACHE\n");
282 #ifdef CONFIG_HW_WATCHDOG
283 serial_early_puts("Setting up external watchdog\n");
288 if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
291 serial_early_puts("Init global data\n");
293 global_board_data_init();
296 serial_early_puts("IRQ init\n");
298 serial_early_puts("Environment init\n");
300 serial_early_puts("Baudrate init\n");
302 serial_early_puts("Serial init\n");
305 serial_early_puts("Console init flash\n");
307 serial_early_puts("End of early debugging\n");
313 printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
314 printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
315 #if defined(__ADSPBF60x__)
316 printf("System0: %s MHz, ", strmhz(buf, get_sclk0()));
317 printf("System1: %s MHz, ", strmhz(buf, get_sclk1()));
318 printf("Dclk: %s MHz\n", strmhz(buf, get_dclk()));
320 printf("System: %s MHz\n", strmhz(buf, get_sclk()));
323 if (CONFIG_MEM_SIZE) {
325 print_size(gd->bd->bi_memsize, "\n");
328 #if defined(CONFIG_POST)
330 post_bootmode_init();
331 post_run(NULL, POST_ROM | post_bootmode_get(0));
334 board_init_r((gd_t *) gd, 0x20000010);
337 static void board_net_init_r(bd_t *bd)
339 #ifdef CONFIG_BITBANGMII
342 #ifdef CONFIG_CMD_NET
348 void board_init_r(gd_t * id, ulong dest_addr)
352 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
355 #if defined(CONFIG_POST)
356 post_output_backlog();
359 /* initialize malloc() area */
360 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
362 #if !defined(CONFIG_SYS_NO_FLASH)
363 /* Initialize the flash and protect u-boot by default */
364 extern flash_info_t flash_info[];
366 ulong size = flash_init();
367 print_size(size, "\n");
368 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
369 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
371 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
372 bd->bi_flashsize = size;
373 bd->bi_flashoffset = 0;
375 bd->bi_flashstart = 0;
376 bd->bi_flashsize = 0;
377 bd->bi_flashoffset = 0;
380 #ifdef CONFIG_CMD_NAND
382 nand_init(); /* go init the NAND */
385 #ifdef CONFIG_GENERIC_MMC
390 /* relocate environment function pointers etc. */
393 /* Initialize stdio devices */
397 /* Initialize the console (after the relocation and devices init) */
400 #ifdef CONFIG_CMD_KGDB
405 #ifdef CONFIG_STATUS_LED
406 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
407 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
410 /* Initialize from environment */
411 load_addr = getenv_ulong("loadaddr", 16, load_addr);
413 #if defined(CONFIG_MISC_INIT_R)
414 /* miscellaneous platform dependent initialisations */
418 board_net_init_r(bd);
420 display_global_data();
422 #if defined(CONFIG_POST)
424 post_run(NULL, POST_RAM | post_bootmode_get(0));
427 if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
428 puts("\nLog buffer from operating system:\n");
433 /* main_loop() can return to retry autoboot, if so just run it again. */