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->board_type);
81 printf(" |-baudrate: %lu\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_ip_addr: %lx\n", bd->bi_ip_addr);
90 printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params);
91 printf(" |-bi_memstart: %lx\n", bd->bi_memstart);
92 printf(" |-bi_memsize: %lx\n", bd->bi_memsize);
93 printf(" |-bi_flashstart: %lx\n", bd->bi_flashstart);
94 printf(" |-bi_flashsize: %lx\n", bd->bi_flashsize);
95 printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
98 #define CPLB_PAGE_SIZE (4 * 1024 * 1024)
99 #define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
100 void init_cplbtables(void)
102 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
103 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
104 uint32_t extern_memory;
107 void icplb_add(uint32_t addr, uint32_t data)
109 *(ICPLB_ADDR + i) = addr;
110 *(ICPLB_DATA + i) = data;
112 void dcplb_add(uint32_t addr, uint32_t data)
114 *(DCPLB_ADDR + i) = addr;
115 *(DCPLB_DATA + i) = data;
118 /* populate a few common entries ... we'll let
119 * the memory map and cplb exception handler do
120 * the rest of the work.
123 ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
124 ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
125 DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
126 DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
128 icplb_add(0xFFA00000, L1_IMEMORY);
129 dcplb_add(0xFF800000, L1_DMEMORY);
132 if (CONFIG_MEM_SIZE) {
133 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
134 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
135 mbase &= CPLB_PAGE_MASK;
136 mend &= CPLB_PAGE_MASK;
138 icplb_add(mbase, SDRAM_IKERNEL);
139 dcplb_add(mbase, SDRAM_DKERNEL);
143 * If the monitor crosses a 4 meg boundary, we'll need
144 * to lock two entries for it. We assume it doesn't
145 * cross two 4 meg boundaries ...
148 icplb_add(mend, SDRAM_IKERNEL);
149 dcplb_add(mend, SDRAM_DKERNEL);
154 icplb_add(0x20000000, SDRAM_INON_CHBL);
155 dcplb_add(0x20000000, SDRAM_EBIU);
158 /* Add entries for the rest of external RAM up to the bootrom */
161 #ifdef CONFIG_DEBUG_NULL_PTR
162 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
163 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
165 icplb_add(extern_memory, SDRAM_IKERNEL);
166 dcplb_add(extern_memory, SDRAM_DKERNEL);
167 extern_memory += CPLB_PAGE_SIZE;
171 while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
172 icplb_add(extern_memory, SDRAM_IGENERIC);
173 dcplb_add(extern_memory, SDRAM_DGENERIC);
174 extern_memory += CPLB_PAGE_SIZE;
185 * All attempts to come up with a "common" initialization sequence
186 * that works for all boards and architectures failed: some of the
187 * requirements are just _too_ different. To get rid of the resulting
188 * mess of board dependend #ifdef'ed code we now make the whole
189 * initialization sequence configurable to the user.
191 * The requirements for any new initalization function is simple: it
192 * receives a pointer to the "global data" structure as it's only
193 * argument, and returns an integer return code, where 0 means
194 * "continue" and != 0 means "fatal error, hang the system".
197 extern int watchdog_init(void);
198 extern int exception_init(void);
199 extern int irq_init(void);
200 extern int timer_init(void);
202 void board_init_f(ulong bootflag)
207 #ifdef CONFIG_BOARD_EARLY_INIT_F
208 serial_early_puts("Board early init flash\n");
209 board_early_init_f();
212 serial_early_puts("Init CPLB tables\n");
215 serial_early_puts("Exceptions setup\n");
218 #ifndef CONFIG_ICACHE_OFF
219 serial_early_puts("Turn on ICACHE\n");
222 #ifndef CONFIG_DCACHE_OFF
223 serial_early_puts("Turn on DCACHE\n");
227 #ifdef CONFIG_WATCHDOG
228 serial_early_puts("Setting up external watchdog\n");
233 if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
236 serial_early_puts("Init global data\n");
237 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
238 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
240 bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
242 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
244 bd->bi_r_version = version_string;
245 bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
246 bd->bi_board_name = BFIN_BOARD_NAME;
247 bd->bi_vco = get_vco();
248 bd->bi_cclk = get_cclk();
249 bd->bi_sclk = get_sclk();
250 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
251 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
254 serial_early_puts("IRQ init\n");
256 serial_early_puts("Environment init\n");
258 serial_early_puts("Baudrate init\n");
260 serial_early_puts("Serial init\n");
262 #ifdef CONFIG_SERIAL_MULTI
265 serial_early_puts("Console init flash\n");
267 serial_early_puts("End of early debugging\n");
273 printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
274 printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
275 printf("System: %s MHz\n", strmhz(buf, get_sclk()));
277 if (CONFIG_MEM_SIZE) {
279 print_size(bd->bi_memsize, "\n");
282 #if defined(CONFIG_POST)
284 post_bootmode_init();
285 post_run(NULL, POST_ROM | post_bootmode_get(0));
288 board_init_r((gd_t *) gd, 0x20000010);
291 static void board_net_init_r(bd_t *bd)
293 #ifdef CONFIG_BITBANGMII
296 #ifdef CONFIG_CMD_NET
299 if ((s = getenv("bootfile")) != NULL)
300 copy_filename(BootFile, s, sizeof(BootFile));
302 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
305 eth_initialize(gd->bd);
309 void board_init_r(gd_t * id, ulong dest_addr)
313 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
316 #if defined(CONFIG_POST)
317 post_output_backlog();
320 /* initialize malloc() area */
321 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
323 #if !defined(CONFIG_SYS_NO_FLASH)
324 /* Initialize the flash and protect u-boot by default */
325 extern flash_info_t flash_info[];
327 ulong size = flash_init();
328 print_size(size, "\n");
329 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
330 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
332 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
333 bd->bi_flashsize = size;
334 bd->bi_flashoffset = 0;
336 bd->bi_flashstart = 0;
337 bd->bi_flashsize = 0;
338 bd->bi_flashoffset = 0;
341 #ifdef CONFIG_CMD_NAND
343 nand_init(); /* go init the NAND */
346 #ifdef CONFIG_GENERIC_MMC
351 /* relocate environment function pointers etc. */
354 /* Initialize stdio devices */
358 /* Initialize the console (after the relocation and devices init) */
361 #ifdef CONFIG_CMD_KGDB
366 #ifdef CONFIG_STATUS_LED
367 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
368 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
371 /* Initialize from environment */
372 load_addr = getenv_ulong("loadaddr", 16, load_addr);
374 #if defined(CONFIG_MISC_INIT_R)
375 /* miscellaneous platform dependent initialisations */
379 board_net_init_r(bd);
381 display_global_data();
383 #if defined(CONFIG_POST)
385 post_run(NULL, POST_RAM | post_bootmode_get(0));
388 if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
389 puts("\nLog buffer from operating system:\n");
394 /* main_loop() can return to retry autoboot, if so just run it again. */
401 #ifdef CONFIG_STATUS_LED
402 status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
403 status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
405 puts("### ERROR ### Please RESET the board ###\n");
407 /* If a JTAG emulator is hooked up, we'll automatically trigger
408 * a breakpoint in it. If one isn't, this is just a NOP.