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>
19 #include <timestamp.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 const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
44 __attribute__((always_inline))
45 static inline void serial_early_puts(const char *s)
47 #ifdef CONFIG_DEBUG_EARLY_SERIAL
48 serial_puts("Early: ");
53 static int display_banner(void)
55 printf("\n\n%s\n\n", version_string);
56 printf("CPU: ADSP " MK_STR(CONFIG_BFIN_CPU) " "
57 "(Detected Rev: 0.%d) "
60 get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
64 static int init_baudrate(void)
67 int i = getenv_r("baudrate", baudrate, sizeof(baudrate));
68 gd->bd->bi_baudrate = gd->baudrate = (i > 0)
69 ? simple_strtoul(baudrate, NULL, 10)
74 static void display_global_data(void)
76 #ifdef CONFIG_DEBUG_EARLY_SERIAL
79 printf(" gd: %p\n", gd);
80 printf(" |-flags: %lx\n", gd->flags);
81 printf(" |-board_type: %lx\n", gd->board_type);
82 printf(" |-baudrate: %lu\n", gd->baudrate);
83 printf(" |-have_console: %lx\n", gd->have_console);
84 printf(" |-ram_size: %lx\n", gd->ram_size);
85 printf(" |-reloc_off: %lx\n", gd->reloc_off);
86 printf(" |-env_addr: %lx\n", gd->env_addr);
87 printf(" |-env_valid: %lx\n", gd->env_valid);
88 printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
89 printf(" \\-bd: %p\n", gd->bd);
90 printf(" |-bi_baudrate: %x\n", bd->bi_baudrate);
91 printf(" |-bi_ip_addr: %lx\n", bd->bi_ip_addr);
92 printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params);
93 printf(" |-bi_memstart: %lx\n", bd->bi_memstart);
94 printf(" |-bi_memsize: %lx\n", bd->bi_memsize);
95 printf(" |-bi_flashstart: %lx\n", bd->bi_flashstart);
96 printf(" |-bi_flashsize: %lx\n", bd->bi_flashsize);
97 printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
101 #define CPLB_PAGE_SIZE (4 * 1024 * 1024)
102 #define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
103 void init_cplbtables(void)
105 volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
106 volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
107 uint32_t extern_memory;
110 void icplb_add(uint32_t addr, uint32_t data)
112 *(ICPLB_ADDR + i) = addr;
113 *(ICPLB_DATA + i) = data;
115 void dcplb_add(uint32_t addr, uint32_t data)
117 *(DCPLB_ADDR + i) = addr;
118 *(DCPLB_DATA + i) = data;
121 /* populate a few common entries ... we'll let
122 * the memory map and cplb exception handler do
123 * the rest of the work.
126 ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
127 ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
128 DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
129 DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
131 icplb_add(0xFFA00000, L1_IMEMORY);
132 dcplb_add(0xFF800000, L1_DMEMORY);
135 if (CONFIG_MEM_SIZE) {
136 uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
137 uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
138 mbase &= CPLB_PAGE_MASK;
139 mend &= CPLB_PAGE_MASK;
141 icplb_add(mbase, SDRAM_IKERNEL);
142 dcplb_add(mbase, SDRAM_DKERNEL);
146 * If the monitor crosses a 4 meg boundary, we'll need
147 * to lock two entries for it. We assume it doesn't
148 * cross two 4 meg boundaries ...
151 icplb_add(mend, SDRAM_IKERNEL);
152 dcplb_add(mend, SDRAM_DKERNEL);
157 icplb_add(0x20000000, SDRAM_INON_CHBL);
158 dcplb_add(0x20000000, SDRAM_EBIU);
161 /* Add entries for the rest of external RAM up to the bootrom */
164 #ifdef CONFIG_DEBUG_NULL_PTR
165 icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
166 dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
168 icplb_add(extern_memory, SDRAM_IKERNEL);
169 dcplb_add(extern_memory, SDRAM_DKERNEL);
170 extern_memory += CPLB_PAGE_SIZE;
174 while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
175 icplb_add(extern_memory, SDRAM_IGENERIC);
176 dcplb_add(extern_memory, SDRAM_DGENERIC);
177 extern_memory += CPLB_PAGE_SIZE;
188 * All attempts to come up with a "common" initialization sequence
189 * that works for all boards and architectures failed: some of the
190 * requirements are just _too_ different. To get rid of the resulting
191 * mess of board dependend #ifdef'ed code we now make the whole
192 * initialization sequence configurable to the user.
194 * The requirements for any new initalization function is simple: it
195 * receives a pointer to the "global data" structure as it's only
196 * argument, and returns an integer return code, where 0 means
197 * "continue" and != 0 means "fatal error, hang the system".
200 extern int exception_init(void);
201 extern int irq_init(void);
202 extern int timer_init(void);
204 void board_init_f(ulong bootflag)
210 #ifdef CONFIG_BOARD_EARLY_INIT_F
211 serial_early_puts("Board early init flash\n");
212 board_early_init_f();
215 serial_early_puts("Init CPLB tables\n");
218 serial_early_puts("Exceptions setup\n");
221 #ifndef CONFIG_ICACHE_OFF
222 serial_early_puts("Turn on ICACHE\n");
225 #ifndef CONFIG_DCACHE_OFF
226 serial_early_puts("Turn on DCACHE\n");
231 if (CONFIG_SYS_GBL_DATA_SIZE < sizeof(*gd))
234 serial_early_puts("Init global data\n");
235 gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
236 memset((void *)gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
238 /* Board data initialization */
239 addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));
241 /* Align to 4 byte boundary */
245 memset((void *)bd, 0, sizeof(bd_t));
247 bd->bi_r_version = version_string;
248 bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
249 bd->bi_board_name = BFIN_BOARD_NAME;
250 bd->bi_vco = get_vco();
251 bd->bi_cclk = get_cclk();
252 bd->bi_sclk = get_sclk();
253 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
254 bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
257 serial_early_puts("IRQ init\n");
259 serial_early_puts("Environment init\n");
261 serial_early_puts("Baudrate init\n");
263 serial_early_puts("Serial init\n");
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()));
278 print_size(bd->bi_memsize, "\n");
279 #if defined(CONFIG_POST)
281 post_bootmode_init();
282 post_run(NULL, POST_ROM | post_bootmode_get(0));
285 board_init_r((gd_t *) gd, 0x20000010);
288 static void board_net_init_r(bd_t *bd)
290 #ifdef CONFIG_BITBANGMII
293 #ifdef CONFIG_CMD_NET
296 if ((s = getenv("bootfile")) != NULL)
297 copy_filename(BootFile, s, sizeof(BootFile));
299 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
302 eth_initialize(gd->bd);
306 void board_init_r(gd_t * id, ulong dest_addr)
311 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
314 #if defined(CONFIG_POST)
315 post_output_backlog();
319 /* initialize malloc() area */
320 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
322 #if !defined(CONFIG_SYS_NO_FLASH)
323 /* Initialize the flash and protect u-boot by default */
324 extern flash_info_t flash_info[];
326 ulong size = flash_init();
327 print_size(size, "\n");
328 flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
329 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
331 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
332 bd->bi_flashsize = size;
333 bd->bi_flashoffset = 0;
335 bd->bi_flashstart = 0;
336 bd->bi_flashsize = 0;
337 bd->bi_flashoffset = 0;
340 #ifdef CONFIG_CMD_NAND
342 nand_init(); /* go init the NAND */
345 #ifdef CONFIG_GENERIC_MMC
350 /* relocate environment function pointers etc. */
353 /* Initialize stdio devices */
357 /* Initialize the console (after the relocation and devices init) */
360 #ifdef CONFIG_CMD_KGDB
365 #ifdef CONFIG_STATUS_LED
366 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
367 status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
370 /* Initialize from environment */
371 if ((s = getenv("loadaddr")) != NULL)
372 load_addr = simple_strtoul(s, NULL, 16);
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 (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.