2 * U-boot - board.c First C file to be called contains init routines
4 * Copyright (c) 2005 blackfin.uclinux.org
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., 59 Temple Place, Suite 330, Boston,
34 #include <environment.h>
36 #include "blackfin_board.h"
38 #include "../drivers/smc91111.h"
40 #if defined(CONFIG_BF537)&&defined(CONFIG_POST)
46 extern flash_info_t flash_info[];
49 static inline u_long get_vco(void)
54 msel = (*pPLL_CTL >> 9) & 0x3F;
58 vco = CONFIG_CLKIN_HZ;
59 vco >>= (1 & *pPLL_CTL); /* DF bit */
64 /*Get the Core clock*/
69 return CONFIG_CLKIN_HZ;
72 csel = ((ssel >> 4) & 0x03);
74 if (ssel && ssel < (1 << csel)) /* SCLK > CCLK */
75 return get_vco() / ssel;
76 return get_vco() >> csel;
79 /* Get the System clock */
85 return CONFIG_CLKIN_HZ;
87 ssel = (*pPLL_DIV & 0xf);
89 return get_vco() / ssel;
92 static void mem_malloc_init(void)
94 mem_malloc_start = CFG_MALLOC_BASE;
95 mem_malloc_end = (CFG_MALLOC_BASE + CFG_MALLOC_LEN);
96 mem_malloc_brk = mem_malloc_start;
97 memset((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
100 void *sbrk(ptrdiff_t increment)
102 ulong old = mem_malloc_brk;
103 ulong new = old + increment;
105 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
108 mem_malloc_brk = new;
110 return ((void *)old);
113 static int display_banner(void)
115 sprintf(version_string, VERSION_STRING_FORMAT, VERSION_STRING);
116 printf("%s\n", version_string);
120 static void display_flash_config(ulong size)
123 print_size(size, "\n");
127 static int init_baudrate(void)
129 DECLARE_GLOBAL_DATA_PTR;
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)
142 DECLARE_GLOBAL_DATA_PTR;
145 printf("--flags:%x\n", gd->flags);
146 printf("--board_type:%x\n", gd->board_type);
147 printf("--baudrate:%x\n", gd->baudrate);
148 printf("--have_console:%x\n", gd->have_console);
149 printf("--ram_size:%x\n", gd->ram_size);
150 printf("--reloc_off:%x\n", gd->reloc_off);
151 printf("--env_addr:%x\n", gd->env_addr);
152 printf("--env_valid:%x\n", gd->env_valid);
153 printf("--bd:%x %x\n", gd->bd, bd);
154 printf("---bi_baudrate:%x\n", bd->bi_baudrate);
155 printf("---bi_ip_addr:%x\n", bd->bi_ip_addr);
156 printf("---bi_enetaddr:%x %x %x %x %x %x\n",
160 bd->bi_enetaddr[3], bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
161 printf("---bi_arch_number:%x\n", bd->bi_arch_number);
162 printf("---bi_boot_params:%x\n", bd->bi_boot_params);
163 printf("---bi_memstart:%x\n", bd->bi_memstart);
164 printf("---bi_memsize:%x\n", bd->bi_memsize);
165 printf("---bi_flashstart:%x\n", bd->bi_flashstart);
166 printf("---bi_flashsize:%x\n", bd->bi_flashsize);
167 printf("---bi_flashoffset:%x\n", bd->bi_flashoffset);
168 printf("--jt:%x *:%x\n", gd->jt, *(gd->jt));
172 /* we cover everything with 4 meg pages, and need an extra for L1 */
173 unsigned int icplb_table[page_descriptor_table_size][2];
174 unsigned int dcplb_table[page_descriptor_table_size][2];
176 void init_cplbtables(void)
181 icplb_table[j][0] = 0xFFA00000;
182 icplb_table[j][1] = L1_IMEMORY;
185 for (i = 0; i <= CONFIG_MEM_SIZE / 4; i++) {
186 icplb_table[j][0] = (i * 4 * 1024 * 1024);
187 if (i * 4 * 1024 * 1024 <= CFG_MONITOR_BASE
188 && (i + 1) * 4 * 1024 * 1024 >= CFG_MONITOR_BASE) {
189 icplb_table[j][1] = SDRAM_IKERNEL;
191 icplb_table[j][1] = SDRAM_IGENERIC;
195 #if defined(CONFIG_BF561)
196 /* Async Memory space */
197 for (i = 0; i < 3; i++) {
198 icplb_table[j++][0] = 0x20000000 + i * 4 * 1024 * 1024;
199 icplb_table[j++][1] = SDRAM_IGENERIC;
202 icplb_table[j][0] = 0x20000000;
203 icplb_table[j][1] = SDRAM_IGENERIC;
206 dcplb_table[j][0] = 0xFF800000;
207 dcplb_table[j][1] = L1_DMEMORY;
210 for (i = 0; i < CONFIG_MEM_SIZE / 4; i++) {
211 dcplb_table[j][0] = (i * 4 * 1024 * 1024);
212 if (i * 4 * 1024 * 1024 <= CFG_MONITOR_BASE
213 && (i + 1) * 4 * 1024 * 1024 >= CFG_MONITOR_BASE) {
214 dcplb_table[j][1] = SDRAM_DKERNEL;
216 dcplb_table[j][1] = SDRAM_DGENERIC;
221 #if defined(CONFIG_BF561)
223 dcplb_table[j++][0] = CONFIG_ASYNC_EBIU_BASE;
224 dcplb_table[j++][1] = SDRAM_EBIU;
227 for (i = 0; i < 2; i++) {
228 dcplb_table[j++][0] = 0x20000000 + i * 4 * 1024 * 1024;
229 dcplb_table[j++][1] = SDRAM_EBIU;
232 dcplb_table[j][0] = 0x20000000;
233 dcplb_table[j][1] = SDRAM_EBIU;
238 * All attempts to come up with a "common" initialization sequence
239 * that works for all boards and architectures failed: some of the
240 * requirements are just _too_ different. To get rid of the resulting
241 * mess of board dependend #ifdef'ed code we now make the whole
242 * initialization sequence configurable to the user.
244 * The requirements for any new initalization function is simple: it
245 * receives a pointer to the "global data" structure as it's only
246 * argument, and returns an integer return code, where 0 means
247 * "continue" and != 0 means "fatal error, hang the system".
250 void board_init_f(ulong bootflag)
252 DECLARE_GLOBAL_DATA_PTR;
259 gd = (gd_t *) (CFG_GBL_DATA_ADDR);
260 memset((void *)gd, 0, sizeof(gd_t));
262 /* Board data initialization */
263 addr = (CFG_GBL_DATA_ADDR + sizeof(gd_t));
265 /* Align to 4 byte boundary */
269 memset((void *)bd, 0, sizeof(bd_t));
273 env_init(); /* initialize environment */
274 init_baudrate(); /* initialze baudrate settings */
275 serial_init(); /* serial communications setup */
277 #ifdef CONFIG_ICACHE_ON
280 #ifdef CONFIG_DCACHE_ON
283 display_banner(); /* say that we are here */
285 for (i = 0; i < page_descriptor_table_size; i++) {
287 ("data (%02i)= 0x%08x : 0x%08x intr = 0x%08x : 0x%08x\n",
288 i, dcplb_table[i][0], dcplb_table[i][1], icplb_table[i][0],
293 #if defined(CONFIG_RTC_BF533) && (CONFIG_COMMANDS & CFG_CMD_DATE)
297 printf("Clock: VCO: %lu MHz, Core: %lu MHz, System: %lu MHz\n",
298 get_vco() / 1000000, get_cclk() / 1000000, get_sclk() / 1000000);
300 print_size(initdram(0), "\n");
301 #if defined(CONFIG_BF537)&&defined(CONFIG_POST)
303 post_bootmode_init();
304 post_run(NULL, POST_ROM | post_bootmode_get(0));
306 board_init_r((gd_t *) gd, 0x20000010);
309 #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
310 static int init_func_i2c(void)
313 i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
319 void board_init_r(gd_t * id, ulong dest_addr)
321 DECLARE_GLOBAL_DATA_PTR;
323 extern void malloc_bin_reloc(void);
328 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
331 #if defined(CONFIG_BF537) && defined(CONFIG_POST)
332 post_output_backlog();
336 #if (CONFIG_STAMP || CONFIG_BF537 || CONFIG_EZKIT561) && !defined(CFG_NO_FLASH)
337 /* There are some other pointer constants we must deal with */
338 /* configure available FLASH banks */
340 display_flash_config(size);
341 flash_protect(FLAG_PROTECT_SET, CFG_FLASH_BASE,
342 CFG_FLASH_BASE + 0x1ffff, &flash_info[0]);
343 bd->bi_flashstart = CFG_FLASH_BASE;
344 bd->bi_flashsize = size;
345 bd->bi_flashoffset = 0;
347 bd->bi_flashstart = 0;
348 bd->bi_flashsize = 0;
349 bd->bi_flashoffset = 0;
351 /* initialize malloc() area */
356 # if ! defined(CFG_ENV_IS_IN_EEPROM)
362 /* relocate environment function pointers etc. */
365 /* board MAC address */
366 s = getenv("ethaddr");
367 for (i = 0; i < 6; ++i) {
368 bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
370 s = (*e) ? e + 1 : e;
374 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
376 /* Initialize devices */
380 /* Initialize the console (after the relocation and devices init) */
383 /* Initialize from environment */
384 if ((s = getenv("loadaddr")) != NULL) {
385 load_addr = simple_strtoul(s, NULL, 16);
387 #if (CONFIG_COMMANDS & CFG_CMD_NET)
388 if ((s = getenv("bootfile")) != NULL) {
389 copy_filename(BootFile, s, sizeof(BootFile));
393 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
395 nand_init(); /* go init the NAND */
398 #if defined(CONFIG_MISC_INIT_R)
399 /* miscellaneous platform dependent initialisations */
403 #if ((BFIN_CPU == ADSP_BF537) || (BFIN_CPU == ADSP_BF536))
408 #ifdef CONFIG_DRIVER_SMC91111
409 #ifdef SHARED_RESOURCES
410 /* Switch to Ethernet */
413 if ((SMC_inw(BANK_SELECT) & UPPER_BYTE_MASK) != SMC_IDENT) {
414 printf("ERROR: Can't find SMC91111 at address %x\n",
417 printf("Net: SMC91111 at 0x%08X\n", SMC_BASE_ADDRESS);
420 #ifdef SHARED_RESOURCES
424 #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
429 display_global_data();
432 #if defined(CONFIG_BF537) && defined(CONFIG_POST)
434 post_run(NULL, POST_RAM | post_bootmode_get(0));
437 /* main_loop() can return to retry autoboot, if so just run it again. */
445 puts("### ERROR ### Please RESET the board ###\n");