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 #if defined(CONFIG_SYS_I2C)
44 DECLARE_GLOBAL_DATA_PTR;
46 __attribute__((always_inline))
47 static inline void serial_early_puts(const char *s)
49 #ifdef CONFIG_DEBUG_EARLY_SERIAL
50 serial_puts("Early: ");
55 static int display_banner(void)
58 printf("CPU: ADSP %s "
59 "(Detected Rev: 0.%d) "
63 get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
67 static int init_baudrate(void)
69 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
70 gd->bd->bi_baudrate = gd->baudrate;
74 static void display_global_data(void)
78 #ifndef CONFIG_DEBUG_EARLY_SERIAL
83 printf(" gd: %p\n", gd);
84 printf(" |-flags: %lx\n", gd->flags);
85 printf(" |-board_type: %lx\n", gd->arch.board_type);
86 printf(" |-baudrate: %u\n", gd->baudrate);
87 printf(" |-have_console: %lx\n", gd->have_console);
88 printf(" |-ram_size: %lx\n", gd->ram_size);
89 printf(" |-env_addr: %lx\n", gd->env_addr);
90 printf(" |-env_valid: %lx\n", gd->env_valid);
91 printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
92 printf(" \\-bd: %p\n", gd->bd);
93 printf(" |-bi_baudrate: %x\n", bd->bi_baudrate);
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 #if defined(__ADSPBF60x__)
105 #define CPLB_EX_PAGE_SIZE (16 * 1024 * 1024)
106 #define CPLB_EX_PAGE_MASK (~(CPLB_EX_PAGE_SIZE - 1))
108 #define CPLB_EX_PAGE_SIZE CPLB_PAGE_SIZE
109 #define CPLB_EX_PAGE_MASK CPLB_PAGE_MASK
111 void init_cplbtables(void)
113 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
114 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
115 uint32_t extern_memory;
118 void icplb_add(uint32_t addr, uint32_t data)
120 *(ICPLB_ADDR + i) = addr;
121 *(ICPLB_DATA + i) = data;
123 void dcplb_add(uint32_t addr, uint32_t data)
125 *(DCPLB_ADDR + i) = addr;
126 *(DCPLB_DATA + i) = data;
129 /* populate a few common entries ... we'll let
130 * the memory map and cplb exception handler do
131 * the rest of the work.
134 ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
135 ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
136 DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
137 DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
139 icplb_add(0xFFA00000, L1_IMEMORY);
140 dcplb_add(0xFF800000, L1_DMEMORY);
142 #if defined(__ADSPBF60x__)
144 dcplb_add(CONFIG_SYS_FLASH_BASE, SDRAM_EBIU);
148 if (CONFIG_MEM_SIZE) {
149 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
150 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
151 mbase &= CPLB_PAGE_MASK;
152 mend &= CPLB_PAGE_MASK;
154 icplb_add(mbase, SDRAM_IKERNEL);
155 dcplb_add(mbase, SDRAM_DKERNEL);
159 * If the monitor crosses a 4 meg boundary, we'll need
160 * to lock two entries for it. We assume it doesn't
161 * cross two 4 meg boundaries ...
164 icplb_add(mend, SDRAM_IKERNEL);
165 dcplb_add(mend, SDRAM_DKERNEL);
170 #ifndef __ADSPBF60x__
171 icplb_add(0x20000000, SDRAM_INON_CHBL);
172 dcplb_add(0x20000000, SDRAM_EBIU);
176 /* Add entries for the rest of external RAM up to the bootrom */
179 #ifdef CONFIG_DEBUG_NULL_PTR
180 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
181 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
183 icplb_add(extern_memory, SDRAM_IKERNEL);
184 dcplb_add(extern_memory, SDRAM_DKERNEL);
185 extern_memory += CPLB_PAGE_SIZE;
189 while (i < 16 && extern_memory <
190 (CONFIG_SYS_MONITOR_BASE & CPLB_EX_PAGE_MASK)) {
191 icplb_add(extern_memory, SDRAM_IGENERIC);
192 dcplb_add(extern_memory, SDRAM_DGENERIC);
193 extern_memory += CPLB_EX_PAGE_SIZE;
203 static int global_board_data_init(void)
205 #ifndef CONFIG_SYS_GBL_DATA_ADDR
206 # define CONFIG_SYS_GBL_DATA_ADDR 0
208 #ifndef CONFIG_SYS_BD_INFO_ADDR
209 # define CONFIG_SYS_BD_INFO_ADDR 0
214 if (CONFIG_SYS_GBL_DATA_ADDR) {
215 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
216 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
218 static gd_t _bfin_gd;
222 if (CONFIG_SYS_BD_INFO_ADDR) {
223 bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
224 memset(bd, 0, GENERATED_BD_INFO_SIZE);
226 static bd_t _bfin_bd;
231 bd->bi_r_version = version_string;
232 bd->bi_cpu = __stringify(CONFIG_BFIN_CPU);
233 bd->bi_board_name = BFIN_BOARD_NAME;
234 bd->bi_vco = get_vco();
235 bd->bi_cclk = get_cclk();
236 bd->bi_sclk = get_sclk();
237 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
238 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
244 * All attempts to come up with a "common" initialization sequence
245 * that works for all boards and architectures failed: some of the
246 * requirements are just _too_ different. To get rid of the resulting
247 * mess of board dependend #ifdef'ed code we now make the whole
248 * initialization sequence configurable to the user.
250 * The requirements for any new initalization function is simple: it
251 * receives a pointer to the "global data" structure as it's only
252 * argument, and returns an integer return code, where 0 means
253 * "continue" and != 0 means "fatal error, hang the system".
256 extern int watchdog_init(void);
257 extern int exception_init(void);
258 extern int irq_init(void);
259 extern int timer_init(void);
261 void board_init_f(ulong bootflag)
265 #ifdef CONFIG_BOARD_EARLY_INIT_F
266 serial_early_puts("Board early init flash\n");
267 board_early_init_f();
270 serial_early_puts("Init CPLB tables\n");
273 serial_early_puts("Exceptions setup\n");
276 #ifndef CONFIG_ICACHE_OFF
277 serial_early_puts("Turn on ICACHE\n");
280 #ifndef CONFIG_DCACHE_OFF
281 serial_early_puts("Turn on DCACHE\n");
285 #ifdef CONFIG_HW_WATCHDOG
286 serial_early_puts("Setting up external watchdog\n");
291 if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
294 serial_early_puts("Init global data\n");
296 global_board_data_init();
299 serial_early_puts("IRQ init\n");
301 serial_early_puts("Environment init\n");
303 serial_early_puts("Baudrate init\n");
305 serial_early_puts("Serial init\n");
308 serial_early_puts("Console init flash\n");
310 serial_early_puts("End of early debugging\n");
316 printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
317 printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
318 #if defined(__ADSPBF60x__)
319 printf("System0: %s MHz, ", strmhz(buf, get_sclk0()));
320 printf("System1: %s MHz, ", strmhz(buf, get_sclk1()));
321 printf("Dclk: %s MHz\n", strmhz(buf, get_dclk()));
323 printf("System: %s MHz\n", strmhz(buf, get_sclk()));
326 if (CONFIG_MEM_SIZE) {
328 print_size(gd->bd->bi_memsize, "\n");
331 #if defined(CONFIG_POST)
333 post_bootmode_init();
334 post_run(NULL, POST_ROM | post_bootmode_get(0));
337 board_init_r((gd_t *) gd, 0x20000010);
340 static void board_net_init_r(bd_t *bd)
342 #ifdef CONFIG_BITBANGMII
345 #ifdef CONFIG_CMD_NET
351 void board_init_r(gd_t * id, ulong dest_addr)
355 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
358 #if defined(CONFIG_POST)
359 post_output_backlog();
362 /* initialize malloc() area */
363 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
365 #if !defined(CONFIG_SYS_NO_FLASH)
366 /* Initialize the flash and protect u-boot by default */
367 extern flash_info_t flash_info[];
369 ulong size = flash_init();
370 print_size(size, "\n");
371 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
372 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
374 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
375 bd->bi_flashsize = size;
376 bd->bi_flashoffset = 0;
378 bd->bi_flashstart = 0;
379 bd->bi_flashsize = 0;
380 bd->bi_flashoffset = 0;
383 #ifdef CONFIG_CMD_NAND
385 nand_init(); /* go init the NAND */
388 #ifdef CONFIG_GENERIC_MMC
393 #if defined(CONFIG_SYS_I2C)
396 /* relocate environment function pointers etc. */
399 /* Initialize stdio devices */
403 /* Initialize the console (after the relocation and devices init) */
406 #ifdef CONFIG_CMD_KGDB
411 #ifdef CONFIG_STATUS_LED
412 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
413 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
416 /* Initialize from environment */
417 load_addr = getenv_ulong("loadaddr", 16, load_addr);
419 #if defined(CONFIG_MISC_INIT_R)
420 /* miscellaneous platform dependent initialisations */
424 board_net_init_r(bd);
426 display_global_data();
428 #if defined(CONFIG_POST)
430 post_run(NULL, POST_RAM | post_bootmode_get(0));
433 if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
434 puts("\nLog buffer from operating system:\n");
439 /* main_loop() can return to retry autoboot, if so just run it again. */