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)
66 int i = getenv_f("baudrate", baudrate, sizeof(baudrate));
67 gd->bd->bi_baudrate = gd->baudrate = (i > 0)
68 ? simple_strtoul(baudrate, NULL, 10)
73 static void display_global_data(void)
77 #ifndef CONFIG_DEBUG_EARLY_SERIAL
82 printf(" gd: %p\n", gd);
83 printf(" |-flags: %lx\n", gd->flags);
84 printf(" |-board_type: %lx\n", gd->board_type);
85 printf(" |-baudrate: %lu\n", gd->baudrate);
86 printf(" |-have_console: %lx\n", gd->have_console);
87 printf(" |-ram_size: %lx\n", gd->ram_size);
88 printf(" |-env_addr: %lx\n", gd->env_addr);
89 printf(" |-env_valid: %lx\n", gd->env_valid);
90 printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
91 printf(" \\-bd: %p\n", gd->bd);
92 printf(" |-bi_baudrate: %x\n", bd->bi_baudrate);
93 printf(" |-bi_ip_addr: %lx\n", bd->bi_ip_addr);
94 printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params);
95 printf(" |-bi_memstart: %lx\n", bd->bi_memstart);
96 printf(" |-bi_memsize: %lx\n", bd->bi_memsize);
97 printf(" |-bi_flashstart: %lx\n", bd->bi_flashstart);
98 printf(" |-bi_flashsize: %lx\n", bd->bi_flashsize);
99 printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
102 #define CPLB_PAGE_SIZE (4 * 1024 * 1024)
103 #define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
104 void init_cplbtables(void)
106 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
107 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
108 uint32_t extern_memory;
111 void icplb_add(uint32_t addr, uint32_t data)
113 *(ICPLB_ADDR + i) = addr;
114 *(ICPLB_DATA + i) = data;
116 void dcplb_add(uint32_t addr, uint32_t data)
118 *(DCPLB_ADDR + i) = addr;
119 *(DCPLB_DATA + i) = data;
122 /* populate a few common entries ... we'll let
123 * the memory map and cplb exception handler do
124 * the rest of the work.
127 ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
128 ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
129 DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
130 DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
132 icplb_add(0xFFA00000, L1_IMEMORY);
133 dcplb_add(0xFF800000, L1_DMEMORY);
136 if (CONFIG_MEM_SIZE) {
137 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
138 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
139 mbase &= CPLB_PAGE_MASK;
140 mend &= CPLB_PAGE_MASK;
142 icplb_add(mbase, SDRAM_IKERNEL);
143 dcplb_add(mbase, SDRAM_DKERNEL);
147 * If the monitor crosses a 4 meg boundary, we'll need
148 * to lock two entries for it. We assume it doesn't
149 * cross two 4 meg boundaries ...
152 icplb_add(mend, SDRAM_IKERNEL);
153 dcplb_add(mend, SDRAM_DKERNEL);
158 icplb_add(0x20000000, SDRAM_INON_CHBL);
159 dcplb_add(0x20000000, SDRAM_EBIU);
162 /* Add entries for the rest of external RAM up to the bootrom */
165 #ifdef CONFIG_DEBUG_NULL_PTR
166 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
167 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
169 icplb_add(extern_memory, SDRAM_IKERNEL);
170 dcplb_add(extern_memory, SDRAM_DKERNEL);
171 extern_memory += CPLB_PAGE_SIZE;
175 while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
176 icplb_add(extern_memory, SDRAM_IGENERIC);
177 dcplb_add(extern_memory, SDRAM_DGENERIC);
178 extern_memory += CPLB_PAGE_SIZE;
189 * All attempts to come up with a "common" initialization sequence
190 * that works for all boards and architectures failed: some of the
191 * requirements are just _too_ different. To get rid of the resulting
192 * mess of board dependend #ifdef'ed code we now make the whole
193 * initialization sequence configurable to the user.
195 * The requirements for any new initalization function is simple: it
196 * receives a pointer to the "global data" structure as it's only
197 * argument, and returns an integer return code, where 0 means
198 * "continue" and != 0 means "fatal error, hang the system".
201 extern int watchdog_init(void);
202 extern int exception_init(void);
203 extern int irq_init(void);
204 extern int timer_init(void);
206 void board_init_f(ulong bootflag)
211 #ifdef CONFIG_BOARD_EARLY_INIT_F
212 serial_early_puts("Board early init flash\n");
213 board_early_init_f();
216 serial_early_puts("Init CPLB tables\n");
219 serial_early_puts("Exceptions setup\n");
222 #ifndef CONFIG_ICACHE_OFF
223 serial_early_puts("Turn on ICACHE\n");
226 #ifndef CONFIG_DCACHE_OFF
227 serial_early_puts("Turn on DCACHE\n");
231 #ifdef CONFIG_WATCHDOG
232 serial_early_puts("Setting up external watchdog\n");
237 if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
240 serial_early_puts("Init global data\n");
241 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
242 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
244 bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
246 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
248 bd->bi_r_version = version_string;
249 bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
250 bd->bi_board_name = BFIN_BOARD_NAME;
251 bd->bi_vco = get_vco();
252 bd->bi_cclk = get_cclk();
253 bd->bi_sclk = get_sclk();
254 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
255 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
258 serial_early_puts("IRQ init\n");
260 serial_early_puts("Environment init\n");
262 serial_early_puts("Baudrate init\n");
264 serial_early_puts("Serial init\n");
266 #ifdef CONFIG_SERIAL_MULTI
269 serial_early_puts("Console init flash\n");
271 serial_early_puts("End of early debugging\n");
277 printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
278 printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
279 printf("System: %s MHz\n", strmhz(buf, get_sclk()));
281 if (CONFIG_MEM_SIZE) {
283 print_size(bd->bi_memsize, "\n");
286 #if defined(CONFIG_POST)
288 post_bootmode_init();
289 post_run(NULL, POST_ROM | post_bootmode_get(0));
292 board_init_r((gd_t *) gd, 0x20000010);
295 static void board_net_init_r(bd_t *bd)
297 #ifdef CONFIG_BITBANGMII
300 #ifdef CONFIG_CMD_NET
303 if ((s = getenv("bootfile")) != NULL)
304 copy_filename(BootFile, s, sizeof(BootFile));
306 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
309 eth_initialize(gd->bd);
313 void board_init_r(gd_t * id, ulong dest_addr)
318 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
321 #if defined(CONFIG_POST)
322 post_output_backlog();
325 /* initialize malloc() area */
326 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
328 #if !defined(CONFIG_SYS_NO_FLASH)
329 /* Initialize the flash and protect u-boot by default */
330 extern flash_info_t flash_info[];
332 ulong size = flash_init();
333 print_size(size, "\n");
334 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
335 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
337 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
338 bd->bi_flashsize = size;
339 bd->bi_flashoffset = 0;
341 bd->bi_flashstart = 0;
342 bd->bi_flashsize = 0;
343 bd->bi_flashoffset = 0;
346 #ifdef CONFIG_CMD_NAND
348 nand_init(); /* go init the NAND */
351 #ifdef CONFIG_GENERIC_MMC
356 /* relocate environment function pointers etc. */
359 /* Initialize stdio devices */
363 /* Initialize the console (after the relocation and devices init) */
366 #ifdef CONFIG_CMD_KGDB
371 #ifdef CONFIG_STATUS_LED
372 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
373 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
376 /* Initialize from environment */
377 if ((s = getenv("loadaddr")) != NULL)
378 load_addr = simple_strtoul(s, NULL, 16);
380 #if defined(CONFIG_MISC_INIT_R)
381 /* miscellaneous platform dependent initialisations */
385 board_net_init_r(bd);
387 display_global_data();
389 #if defined(CONFIG_POST)
391 post_run(NULL, POST_RAM | post_bootmode_get(0));
394 if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
395 puts("\nLog buffer from operating system:\n");
400 /* main_loop() can return to retry autoboot, if so just run it again. */
407 #ifdef CONFIG_STATUS_LED
408 status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
409 status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
411 puts("### ERROR ### Please RESET the board ###\n");
413 /* If a JTAG emulator is hooked up, we'll automatically trigger
414 * a breakpoint in it. If one isn't, this is just a NOP.