2 * U-boot - board.c First C file to be called contains init routines
4 * Copyright (c) 2005-2007 Analog Devices Inc.
6 * (C) Copyright 2000-2004
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
34 #include <environment.h>
36 #include "blackfin_board.h"
38 #include "../drivers/net/smc91111.h"
40 #if defined(CONFIG_BF537)&&defined(CONFIG_POST)
45 DECLARE_GLOBAL_DATA_PTR;
48 extern flash_info_t flash_info[];
51 static inline u_long get_vco(void)
56 msel = (*pPLL_CTL >> 9) & 0x3F;
60 vco = CONFIG_CLKIN_HZ;
61 vco >>= (1 & *pPLL_CTL); /* DF bit */
66 /*Get the Core clock*/
71 return CONFIG_CLKIN_HZ;
74 csel = ((ssel >> 4) & 0x03);
76 if (ssel && ssel < (1 << csel)) /* SCLK > CCLK */
77 return get_vco() / ssel;
78 return get_vco() >> csel;
81 /* Get the System clock */
87 return CONFIG_CLKIN_HZ;
89 ssel = (*pPLL_DIV & 0xf);
91 return get_vco() / ssel;
94 static void mem_malloc_init(void)
96 mem_malloc_start = CFG_MALLOC_BASE;
97 mem_malloc_end = (CFG_MALLOC_BASE + CFG_MALLOC_LEN);
98 mem_malloc_brk = mem_malloc_start;
99 memset((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
102 void *sbrk(ptrdiff_t increment)
104 ulong old = mem_malloc_brk;
105 ulong new = old + increment;
107 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
110 mem_malloc_brk = new;
112 return ((void *)old);
115 static int display_banner(void)
117 sprintf(version_string, VERSION_STRING_FORMAT, VERSION_STRING);
118 printf("%s\n", version_string);
122 static void display_flash_config(ulong size)
125 print_size(size, "\n");
129 static int init_baudrate(void)
132 int i = getenv_r("baudrate", tmp, sizeof(tmp));
133 gd->bd->bi_baudrate = gd->baudrate = (i > 0)
134 ? (int)simple_strtoul(tmp, NULL, 10)
140 static void display_global_data(void)
144 printf("--flags:%x\n", gd->flags);
145 printf("--board_type:%x\n", gd->board_type);
146 printf("--baudrate:%x\n", gd->baudrate);
147 printf("--have_console:%x\n", gd->have_console);
148 printf("--ram_size:%x\n", gd->ram_size);
149 printf("--reloc_off:%x\n", gd->reloc_off);
150 printf("--env_addr:%x\n", gd->env_addr);
151 printf("--env_valid:%x\n", gd->env_valid);
152 printf("--bd:%x %x\n", gd->bd, bd);
153 printf("---bi_baudrate:%x\n", bd->bi_baudrate);
154 printf("---bi_ip_addr:%x\n", bd->bi_ip_addr);
155 printf("---bi_enetaddr:%x %x %x %x %x %x\n",
159 bd->bi_enetaddr[3], bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
160 printf("---bi_arch_number:%x\n", bd->bi_arch_number);
161 printf("---bi_boot_params:%x\n", bd->bi_boot_params);
162 printf("---bi_memstart:%x\n", bd->bi_memstart);
163 printf("---bi_memsize:%x\n", bd->bi_memsize);
164 printf("---bi_flashstart:%x\n", bd->bi_flashstart);
165 printf("---bi_flashsize:%x\n", bd->bi_flashsize);
166 printf("---bi_flashoffset:%x\n", bd->bi_flashoffset);
167 printf("--jt:%x *:%x\n", gd->jt, *(gd->jt));
171 /* we cover everything with 4 meg pages, and need an extra for L1 */
172 unsigned int icplb_table[page_descriptor_table_size][2];
173 unsigned int dcplb_table[page_descriptor_table_size][2];
175 void init_cplbtables(void)
180 icplb_table[j][0] = 0xFFA00000;
181 icplb_table[j][1] = L1_IMEMORY;
184 for (i = 0; i < CONFIG_MEM_SIZE / 4; i++) {
185 icplb_table[j][0] = (i * 4 * 1024 * 1024);
186 if (i * 4 * 1024 * 1024 <= CFG_MONITOR_BASE
187 && (i + 1) * 4 * 1024 * 1024 >= CFG_MONITOR_BASE) {
188 icplb_table[j][1] = SDRAM_IKERNEL;
190 icplb_table[j][1] = SDRAM_IGENERIC;
194 #if defined(CONFIG_BF561)
196 icplb_table[j][0] = 0x2C000000;
197 icplb_table[j][1] = SDRAM_INON_CHBL;
199 /* Async Memory space */
200 for (i = 0; i < 3; i++) {
201 icplb_table[j][0] = 0x20000000 + i * 4 * 1024 * 1024;
202 icplb_table[j][1] = SDRAM_INON_CHBL;
206 icplb_table[j][0] = 0x20000000;
207 icplb_table[j][1] = SDRAM_INON_CHBL;
210 dcplb_table[j][0] = 0xFF800000;
211 dcplb_table[j][1] = L1_DMEMORY;
214 for (i = 0; i < CONFIG_MEM_SIZE / 4; i++) {
215 dcplb_table[j][0] = (i * 4 * 1024 * 1024);
216 if (i * 4 * 1024 * 1024 <= CFG_MONITOR_BASE
217 && (i + 1) * 4 * 1024 * 1024 >= CFG_MONITOR_BASE) {
218 dcplb_table[j][1] = SDRAM_DKERNEL;
220 dcplb_table[j][1] = SDRAM_DGENERIC;
225 #if defined(CONFIG_BF561)
227 dcplb_table[j][0] = 0x2C000000;
228 dcplb_table[j][1] = SDRAM_EBIU;
232 for (i = 0; i < 3; i++) {
233 dcplb_table[j][0] = 0x20000000 + i * 4 * 1024 * 1024;
234 dcplb_table[j][1] = SDRAM_EBIU;
238 dcplb_table[j][0] = 0x20000000;
239 dcplb_table[j][1] = SDRAM_EBIU;
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 void board_init_f(ulong bootflag)
264 gd = (gd_t *) (CFG_GBL_DATA_ADDR);
265 memset((void *)gd, 0, sizeof(gd_t));
267 /* Board data initialization */
268 addr = (CFG_GBL_DATA_ADDR + sizeof(gd_t));
270 /* Align to 4 byte boundary */
274 memset((void *)bd, 0, sizeof(bd_t));
278 env_init(); /* initialize environment */
279 init_baudrate(); /* initialze baudrate settings */
280 serial_init(); /* serial communications setup */
282 #ifdef CONFIG_ICACHE_ON
285 #ifdef CONFIG_DCACHE_ON
288 display_banner(); /* say that we are here */
290 for (i = 0; i < page_descriptor_table_size; i++) {
292 ("data (%02i)= 0x%08x : 0x%08x intr = 0x%08x : 0x%08x\n",
293 i, dcplb_table[i][0], dcplb_table[i][1], icplb_table[i][0],
298 #if defined(CONFIG_RTC_BF533) && defined(CONFIG_CMD_DATE)
302 printf("Clock: VCO: %lu MHz, Core: %lu MHz, System: %lu MHz\n",
303 get_vco() / 1000000, get_cclk() / 1000000, get_sclk() / 1000000);
305 print_size(initdram(0), "\n");
306 #if defined(CONFIG_BF537)&&defined(CONFIG_POST)
308 post_bootmode_init();
309 post_run(NULL, POST_ROM | post_bootmode_get(0));
311 board_init_r((gd_t *) gd, 0x20000010);
314 #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
315 static int init_func_i2c(void)
318 i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
324 void board_init_r(gd_t * id, ulong dest_addr)
327 extern void malloc_bin_reloc(void);
332 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
335 #if defined(CONFIG_BF537) && defined(CONFIG_POST)
336 post_output_backlog();
340 #if (CONFIG_STAMP || CONFIG_BF537 || CONFIG_EZKIT561) && !defined(CFG_NO_FLASH)
341 /* There are some other pointer constants we must deal with */
342 /* configure available FLASH banks */
344 display_flash_config(size);
345 flash_protect(FLAG_PROTECT_SET, CFG_FLASH_BASE,
346 CFG_FLASH_BASE + 0x1ffff, &flash_info[0]);
347 bd->bi_flashstart = CFG_FLASH_BASE;
348 bd->bi_flashsize = size;
349 bd->bi_flashoffset = 0;
351 bd->bi_flashstart = 0;
352 bd->bi_flashsize = 0;
353 bd->bi_flashoffset = 0;
355 /* initialize malloc() area */
360 # if ! defined(CFG_ENV_IS_IN_EEPROM)
366 /* relocate environment function pointers etc. */
369 /* board MAC address */
370 s = getenv("ethaddr");
371 for (i = 0; i < 6; ++i) {
372 bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
374 s = (*e) ? e + 1 : e;
378 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
380 /* Initialize devices */
384 /* Initialize the console (after the relocation and devices init) */
387 /* Initialize from environment */
388 if ((s = getenv("loadaddr")) != NULL) {
389 load_addr = simple_strtoul(s, NULL, 16);
391 #if defined(CONFIG_CMD_NET)
392 if ((s = getenv("bootfile")) != NULL) {
393 copy_filename(BootFile, s, sizeof(BootFile));
397 #if defined(CONFIG_CMD_NAND)
399 nand_init(); /* go init the NAND */
402 #if defined(CONFIG_MISC_INIT_R)
403 /* miscellaneous platform dependent initialisations */
407 #if ((BFIN_CPU == ADSP_BF537) || (BFIN_CPU == ADSP_BF536))
412 #ifdef CONFIG_DRIVER_SMC91111
413 #ifdef SHARED_RESOURCES
414 /* Switch to Ethernet */
417 if ((SMC_inw(BANK_SELECT) & UPPER_BYTE_MASK) != SMC_IDENT) {
418 printf("ERROR: Can't find SMC91111 at address %x\n",
421 printf("Net: SMC91111 at 0x%08X\n", SMC_BASE_ADDRESS);
424 #ifdef SHARED_RESOURCES
428 #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
433 display_global_data();
436 #if defined(CONFIG_BF537) && defined(CONFIG_POST)
438 post_run(NULL, POST_RAM | post_bootmode_get(0));
441 /* main_loop() can return to retry autoboot, if so just run it again. */
449 puts("### ERROR ### Please RESET the board ###\n");