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: %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 void init_cplbtables(void)
101 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
102 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
103 uint32_t extern_memory;
106 void icplb_add(uint32_t addr, uint32_t data)
108 *(ICPLB_ADDR + i) = addr;
109 *(ICPLB_DATA + i) = data;
111 void dcplb_add(uint32_t addr, uint32_t data)
113 *(DCPLB_ADDR + i) = addr;
114 *(DCPLB_DATA + i) = data;
117 /* populate a few common entries ... we'll let
118 * the memory map and cplb exception handler do
119 * the rest of the work.
122 ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
123 ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
124 DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
125 DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
127 icplb_add(0xFFA00000, L1_IMEMORY);
128 dcplb_add(0xFF800000, L1_DMEMORY);
131 if (CONFIG_MEM_SIZE) {
132 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
133 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
134 mbase &= CPLB_PAGE_MASK;
135 mend &= CPLB_PAGE_MASK;
137 icplb_add(mbase, SDRAM_IKERNEL);
138 dcplb_add(mbase, SDRAM_DKERNEL);
142 * If the monitor crosses a 4 meg boundary, we'll need
143 * to lock two entries for it. We assume it doesn't
144 * cross two 4 meg boundaries ...
147 icplb_add(mend, SDRAM_IKERNEL);
148 dcplb_add(mend, SDRAM_DKERNEL);
153 icplb_add(0x20000000, SDRAM_INON_CHBL);
154 dcplb_add(0x20000000, SDRAM_EBIU);
157 /* Add entries for the rest of external RAM up to the bootrom */
160 #ifdef CONFIG_DEBUG_NULL_PTR
161 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
162 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
164 icplb_add(extern_memory, SDRAM_IKERNEL);
165 dcplb_add(extern_memory, SDRAM_DKERNEL);
166 extern_memory += CPLB_PAGE_SIZE;
170 while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
171 icplb_add(extern_memory, SDRAM_IGENERIC);
172 dcplb_add(extern_memory, SDRAM_DGENERIC);
173 extern_memory += CPLB_PAGE_SIZE;
183 static int global_board_data_init(void)
185 #ifndef CONFIG_SYS_GBL_DATA_ADDR
186 # define CONFIG_SYS_GBL_DATA_ADDR 0
188 #ifndef CONFIG_SYS_BD_INFO_ADDR
189 # define CONFIG_SYS_BD_INFO_ADDR 0
194 if (CONFIG_SYS_GBL_DATA_ADDR) {
195 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
196 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
198 static gd_t _bfin_gd;
202 if (CONFIG_SYS_BD_INFO_ADDR) {
203 bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
204 memset(bd, 0, GENERATED_BD_INFO_SIZE);
206 static bd_t _bfin_bd;
211 bd->bi_r_version = version_string;
212 bd->bi_cpu = __stringify(CONFIG_BFIN_CPU);
213 bd->bi_board_name = BFIN_BOARD_NAME;
214 bd->bi_vco = get_vco();
215 bd->bi_cclk = get_cclk();
216 bd->bi_sclk = get_sclk();
217 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
218 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
224 * All attempts to come up with a "common" initialization sequence
225 * that works for all boards and architectures failed: some of the
226 * requirements are just _too_ different. To get rid of the resulting
227 * mess of board dependend #ifdef'ed code we now make the whole
228 * initialization sequence configurable to the user.
230 * The requirements for any new initalization function is simple: it
231 * receives a pointer to the "global data" structure as it's only
232 * argument, and returns an integer return code, where 0 means
233 * "continue" and != 0 means "fatal error, hang the system".
236 extern int watchdog_init(void);
237 extern int exception_init(void);
238 extern int irq_init(void);
239 extern int timer_init(void);
241 void board_init_f(ulong bootflag)
245 #ifdef CONFIG_BOARD_EARLY_INIT_F
246 serial_early_puts("Board early init flash\n");
247 board_early_init_f();
250 serial_early_puts("Init CPLB tables\n");
253 serial_early_puts("Exceptions setup\n");
256 #ifndef CONFIG_ICACHE_OFF
257 serial_early_puts("Turn on ICACHE\n");
260 #ifndef CONFIG_DCACHE_OFF
261 serial_early_puts("Turn on DCACHE\n");
265 #ifdef CONFIG_WATCHDOG
266 serial_early_puts("Setting up external watchdog\n");
271 if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
274 serial_early_puts("Init global data\n");
276 global_board_data_init();
279 serial_early_puts("IRQ init\n");
281 serial_early_puts("Environment init\n");
283 serial_early_puts("Baudrate init\n");
285 serial_early_puts("Serial init\n");
288 serial_early_puts("Console init flash\n");
290 serial_early_puts("End of early debugging\n");
296 printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
297 printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
298 printf("System: %s MHz\n", strmhz(buf, get_sclk()));
300 if (CONFIG_MEM_SIZE) {
302 print_size(gd->bd->bi_memsize, "\n");
305 #if defined(CONFIG_POST)
307 post_bootmode_init();
308 post_run(NULL, POST_ROM | post_bootmode_get(0));
311 board_init_r((gd_t *) gd, 0x20000010);
314 static void board_net_init_r(bd_t *bd)
316 #ifdef CONFIG_BITBANGMII
319 #ifdef CONFIG_CMD_NET
325 void board_init_r(gd_t * id, ulong dest_addr)
329 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
332 #if defined(CONFIG_POST)
333 post_output_backlog();
336 /* initialize malloc() area */
337 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
339 #if !defined(CONFIG_SYS_NO_FLASH)
340 /* Initialize the flash and protect u-boot by default */
341 extern flash_info_t flash_info[];
343 ulong size = flash_init();
344 print_size(size, "\n");
345 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
346 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
348 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
349 bd->bi_flashsize = size;
350 bd->bi_flashoffset = 0;
352 bd->bi_flashstart = 0;
353 bd->bi_flashsize = 0;
354 bd->bi_flashoffset = 0;
357 #ifdef CONFIG_CMD_NAND
359 nand_init(); /* go init the NAND */
362 #ifdef CONFIG_GENERIC_MMC
367 /* relocate environment function pointers etc. */
370 /* Initialize stdio devices */
374 /* Initialize the console (after the relocation and devices init) */
377 #ifdef CONFIG_CMD_KGDB
382 #ifdef CONFIG_STATUS_LED
383 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
384 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
387 /* Initialize from environment */
388 load_addr = getenv_ulong("loadaddr", 16, load_addr);
390 #if defined(CONFIG_MISC_INIT_R)
391 /* miscellaneous platform dependent initialisations */
395 board_net_init_r(bd);
397 display_global_data();
399 #if defined(CONFIG_POST)
401 post_run(NULL, POST_RAM | post_bootmode_get(0));
404 if (CONFIG_MEM_SIZE && bfin_os_log_check()) {
405 puts("\nLog buffer from operating system:\n");
410 /* main_loop() can return to retry autoboot, if so just run it again. */
417 #ifdef CONFIG_STATUS_LED
418 status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
419 status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
421 puts("### ERROR ### Please RESET the board ###\n");
423 /* If a JTAG emulator is hooked up, we'll automatically trigger
424 * a breakpoint in it. If one isn't, this is just a NOP.