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>
15 #include <environment.h>
18 #include <timestamp.h>
19 #include <status_led.h>
23 #include <asm/mach-common/bits/mpu.h>
25 #ifdef CONFIG_CMD_NAND
26 #include <nand.h> /* cannot even include nand.h if it isnt configured */
29 #ifdef CONFIG_BITBANGMII
33 #if defined(CONFIG_POST)
38 DECLARE_GLOBAL_DATA_PTR;
40 const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
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)
53 printf("\n\n%s\n\n", version_string);
54 printf("CPU: ADSP " MK_STR(CONFIG_BFIN_CPU) " "
55 "(Detected Rev: 0.%d) "
58 get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
62 static int init_baudrate(void)
65 int i = getenv_r("baudrate", baudrate, sizeof(baudrate));
66 gd->bd->bi_baudrate = gd->baudrate = (i > 0)
67 ? simple_strtoul(baudrate, NULL, 10)
72 static void display_global_data(void)
74 #ifdef CONFIG_DEBUG_EARLY_SERIAL
77 printf(" gd: %p\n", gd);
78 printf(" |-flags: %lx\n", gd->flags);
79 printf(" |-board_type: %lx\n", gd->board_type);
80 printf(" |-baudrate: %lu\n", gd->baudrate);
81 printf(" |-have_console: %lx\n", gd->have_console);
82 printf(" |-ram_size: %lx\n", gd->ram_size);
83 printf(" |-reloc_off: %lx\n", gd->reloc_off);
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);
99 #define CPLB_PAGE_SIZE (4 * 1024 * 1024)
100 #define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
101 void init_cplbtables(void)
103 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
104 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
105 uint32_t extern_memory;
108 void icplb_add(uint32_t addr, uint32_t data)
110 *(ICPLB_ADDR + i) = addr;
111 *(ICPLB_DATA + i) = data;
113 void dcplb_add(uint32_t addr, uint32_t data)
115 *(DCPLB_ADDR + i) = addr;
116 *(DCPLB_DATA + i) = data;
119 /* populate a few common entries ... we'll let
120 * the memory map and cplb exception handler do
121 * the rest of the work.
124 ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
125 ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
126 DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
127 DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
129 icplb_add(0xFFA00000, L1_IMEMORY);
130 dcplb_add(0xFF800000, L1_DMEMORY);
133 if (CONFIG_MEM_SIZE) {
134 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
135 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
136 mbase &= CPLB_PAGE_MASK;
137 mend &= CPLB_PAGE_MASK;
139 icplb_add(mbase, SDRAM_IKERNEL);
140 dcplb_add(mbase, SDRAM_DKERNEL);
144 * If the monitor crosses a 4 meg boundary, we'll need
145 * to lock two entries for it. We assume it doesn't
146 * cross two 4 meg boundaries ...
149 icplb_add(mend, SDRAM_IKERNEL);
150 dcplb_add(mend, SDRAM_DKERNEL);
155 icplb_add(0x20000000, SDRAM_INON_CHBL);
156 dcplb_add(0x20000000, SDRAM_EBIU);
159 /* Add entries for the rest of external RAM up to the bootrom */
162 #ifdef CONFIG_DEBUG_NULL_PTR
163 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
164 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
166 icplb_add(extern_memory, SDRAM_IKERNEL);
167 dcplb_add(extern_memory, SDRAM_DKERNEL);
168 extern_memory += CPLB_PAGE_SIZE;
172 while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
173 icplb_add(extern_memory, SDRAM_IGENERIC);
174 dcplb_add(extern_memory, SDRAM_DGENERIC);
175 extern_memory += CPLB_PAGE_SIZE;
186 * All attempts to come up with a "common" initialization sequence
187 * that works for all boards and architectures failed: some of the
188 * requirements are just _too_ different. To get rid of the resulting
189 * mess of board dependend #ifdef'ed code we now make the whole
190 * initialization sequence configurable to the user.
192 * The requirements for any new initalization function is simple: it
193 * receives a pointer to the "global data" structure as it's only
194 * argument, and returns an integer return code, where 0 means
195 * "continue" and != 0 means "fatal error, hang the system".
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)
208 #ifdef CONFIG_BOARD_EARLY_INIT_F
209 serial_early_puts("Board early init flash\n");
210 board_early_init_f();
213 serial_early_puts("Init CPLB tables\n");
216 serial_early_puts("Exceptions setup\n");
219 #ifndef CONFIG_ICACHE_OFF
220 serial_early_puts("Turn on ICACHE\n");
223 #ifndef CONFIG_DCACHE_OFF
224 serial_early_puts("Turn on DCACHE\n");
229 if (CONFIG_SYS_GBL_DATA_SIZE < sizeof(*gd))
232 serial_early_puts("Init global data\n");
233 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
234 memset((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
236 /* Board data initialization */
237 addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));
239 /* Align to 4 byte boundary */
243 memset((void *)bd, 0, sizeof(bd_t));
245 bd->bi_r_version = version_string;
246 bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
247 bd->bi_board_name = BFIN_BOARD_NAME;
248 bd->bi_vco = get_vco();
249 bd->bi_cclk = get_cclk();
250 bd->bi_sclk = get_sclk();
251 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
252 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
255 serial_early_puts("IRQ init\n");
257 serial_early_puts("Environment init\n");
259 serial_early_puts("Baudrate init\n");
261 serial_early_puts("Serial init\n");
263 serial_early_puts("Console init flash\n");
265 serial_early_puts("End of early debugging\n");
271 printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
272 printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
273 printf("System: %s MHz\n", strmhz(buf, get_sclk()));
276 print_size(bd->bi_memsize, "\n");
277 #if defined(CONFIG_POST)
279 post_bootmode_init();
280 post_run(NULL, POST_ROM | post_bootmode_get(0));
283 board_init_r((gd_t *) gd, 0x20000010);
286 static void board_net_init_r(bd_t *bd)
288 #ifdef CONFIG_BITBANGMII
291 #ifdef CONFIG_CMD_NET
294 if ((s = getenv("bootfile")) != NULL)
295 copy_filename(BootFile, s, sizeof(BootFile));
297 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
300 eth_initialize(gd->bd);
304 void board_init_r(gd_t * id, ulong dest_addr)
309 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
312 #if defined(CONFIG_POST)
313 post_output_backlog();
317 /* initialize malloc() area */
318 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
320 #if !defined(CONFIG_SYS_NO_FLASH)
321 /* Initialize the flash and protect u-boot by default */
322 extern flash_info_t flash_info[];
324 ulong size = flash_init();
325 print_size(size, "\n");
326 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
327 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
329 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
330 bd->bi_flashsize = size;
331 bd->bi_flashoffset = 0;
333 bd->bi_flashstart = 0;
334 bd->bi_flashsize = 0;
335 bd->bi_flashoffset = 0;
338 #ifdef CONFIG_CMD_NAND
340 nand_init(); /* go init the NAND */
343 /* relocate environment function pointers etc. */
346 /* Initialize stdio devices */
350 /* Initialize the console (after the relocation and devices init) */
353 #ifdef CONFIG_STATUS_LED
354 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
355 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
358 /* Initialize from environment */
359 if ((s = getenv("loadaddr")) != NULL)
360 load_addr = simple_strtoul(s, NULL, 16);
362 #if defined(CONFIG_MISC_INIT_R)
363 /* miscellaneous platform dependent initialisations */
367 board_net_init_r(bd);
369 display_global_data();
371 #if defined(CONFIG_POST)
373 post_run(NULL, POST_RAM | post_bootmode_get(0));
376 if (bfin_os_log_check()) {
377 puts("\nLog buffer from operating system:\n");
382 /* main_loop() can return to retry autoboot, if so just run it again. */
389 #ifdef CONFIG_STATUS_LED
390 status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
391 status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
393 puts("### ERROR ### Please RESET the board ###\n");
395 /* If a JTAG emulator is hooked up, we'll automatically trigger
396 * a breakpoint in it. If one isn't, this is just a NOP.