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 #define pr_debug(fmt,arg...) printf(fmt,##arg)
49 __attribute__ ((format(printf, 1, 2))) pr_debug(const char *fmt, ...)
56 extern flash_info_t flash_info[];
59 static inline u_long get_vco(void)
64 msel = (*pPLL_CTL >> 9) & 0x3F;
68 vco = CONFIG_CLKIN_HZ;
69 vco >>= (1 & *pPLL_CTL); /* DF bit */
74 /*Get the Core clock*/
79 return CONFIG_CLKIN_HZ;
82 csel = ((ssel >> 4) & 0x03);
84 if (ssel && ssel < (1 << csel)) /* SCLK > CCLK */
85 return get_vco() / ssel;
86 return get_vco() >> csel;
89 /* Get the System clock */
95 return CONFIG_CLKIN_HZ;
97 ssel = (*pPLL_DIV & 0xf);
99 return get_vco() / ssel;
102 static void mem_malloc_init(void)
104 mem_malloc_start = CFG_MALLOC_BASE;
105 mem_malloc_end = (CFG_MALLOC_BASE + CFG_MALLOC_LEN);
106 mem_malloc_brk = mem_malloc_start;
107 memset((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
110 void *sbrk(ptrdiff_t increment)
112 ulong old = mem_malloc_brk;
113 ulong new = old + increment;
115 if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
118 mem_malloc_brk = new;
120 return ((void *)old);
123 static int display_banner(void)
125 sprintf(version_string, VERSION_STRING_FORMAT, VERSION_STRING);
126 printf("%s\n", version_string);
130 static void display_flash_config(ulong size)
133 print_size(size, "\n");
137 static int init_baudrate(void)
139 DECLARE_GLOBAL_DATA_PTR;
142 int i = getenv_r("baudrate", tmp, sizeof(tmp));
143 gd->bd->bi_baudrate = gd->baudrate = (i > 0)
144 ? (int)simple_strtoul(tmp, NULL, 10)
150 static void display_global_data(void)
152 DECLARE_GLOBAL_DATA_PTR;
155 printf("--flags:%x\n", gd->flags);
156 printf("--board_type:%x\n", gd->board_type);
157 printf("--baudrate:%x\n", gd->baudrate);
158 printf("--have_console:%x\n", gd->have_console);
159 printf("--ram_size:%x\n", gd->ram_size);
160 printf("--reloc_off:%x\n", gd->reloc_off);
161 printf("--env_addr:%x\n", gd->env_addr);
162 printf("--env_valid:%x\n", gd->env_valid);
163 printf("--bd:%x %x\n", gd->bd, bd);
164 printf("---bi_baudrate:%x\n", bd->bi_baudrate);
165 printf("---bi_ip_addr:%x\n", bd->bi_ip_addr);
166 printf("---bi_enetaddr:%x %x %x %x %x %x\n",
170 bd->bi_enetaddr[3], bd->bi_enetaddr[4], bd->bi_enetaddr[5]);
171 printf("---bi_arch_number:%x\n", bd->bi_arch_number);
172 printf("---bi_boot_params:%x\n", bd->bi_boot_params);
173 printf("---bi_memstart:%x\n", bd->bi_memstart);
174 printf("---bi_memsize:%x\n", bd->bi_memsize);
175 printf("---bi_flashstart:%x\n", bd->bi_flashstart);
176 printf("---bi_flashsize:%x\n", bd->bi_flashsize);
177 printf("---bi_flashoffset:%x\n", bd->bi_flashoffset);
178 printf("--jt:%x *:%x\n", gd->jt, *(gd->jt));
182 /* we cover everything with 4 meg pages, and need an extra for L1 */
183 unsigned int icplb_table[page_descriptor_table_size][2];
184 unsigned int dcplb_table[page_descriptor_table_size][2];
186 void init_cplbtables(void)
191 icplb_table[j][0] = 0xFFA00000;
192 icplb_table[j][1] = L1_IMEMORY;
195 for (i = 0; i <= CONFIG_MEM_SIZE / 4; i++) {
196 icplb_table[j][0] = (i * 4 * 1024 * 1024);
197 if (i * 4 * 1024 * 1024 <= CFG_MONITOR_BASE
198 && (i + 1) * 4 * 1024 * 1024 >= CFG_MONITOR_BASE) {
199 icplb_table[j][1] = SDRAM_IKERNEL;
201 icplb_table[j][1] = SDRAM_IGENERIC;
205 #if defined(CONFIG_BF561)
206 /* Async Memory space */
207 for (i = 0; i < 3; i++) {
208 icplb_table[j++][0] = 0x20000000 + i * 4 * 1024 * 1024;
209 icplb_table[j++][1] = SDRAM_IGENERIC;
212 icplb_table[j][0] = 0x20000000;
213 icplb_table[j][1] = SDRAM_IGENERIC;
216 dcplb_table[j][0] = 0xFF800000;
217 dcplb_table[j][1] = L1_DMEMORY;
220 for (i = 0; i < CONFIG_MEM_SIZE / 4; i++) {
221 dcplb_table[j][0] = (i * 4 * 1024 * 1024);
222 if (i * 4 * 1024 * 1024 <= CFG_MONITOR_BASE
223 && (i + 1) * 4 * 1024 * 1024 >= CFG_MONITOR_BASE) {
224 dcplb_table[j][1] = SDRAM_DKERNEL;
226 dcplb_table[j][1] = SDRAM_DGENERIC;
231 #if defined(CONFIG_BF561)
233 dcplb_table[j++][0] = CONFIG_ASYNC_EBIU_BASE;
234 dcplb_table[j++][1] = SDRAM_EBIU;
237 for (i = 0; i < 2; i++) {
238 dcplb_table[j++][0] = 0x20000000 + i * 4 * 1024 * 1024;
239 dcplb_table[j++][1] = SDRAM_EBIU;
242 dcplb_table[j][0] = 0x20000000;
243 dcplb_table[j][1] = SDRAM_EBIU;
248 * All attempts to come up with a "common" initialization sequence
249 * that works for all boards and architectures failed: some of the
250 * requirements are just _too_ different. To get rid of the resulting
251 * mess of board dependend #ifdef'ed code we now make the whole
252 * initialization sequence configurable to the user.
254 * The requirements for any new initalization function is simple: it
255 * receives a pointer to the "global data" structure as it's only
256 * argument, and returns an integer return code, where 0 means
257 * "continue" and != 0 means "fatal error, hang the system".
260 void board_init_f(ulong bootflag)
262 DECLARE_GLOBAL_DATA_PTR;
269 gd = (gd_t *) (CFG_GBL_DATA_ADDR);
270 memset((void *)gd, 0, sizeof(gd_t));
272 /* Board data initialization */
273 addr = (CFG_GBL_DATA_ADDR + sizeof(gd_t));
275 /* Align to 4 byte boundary */
279 memset((void *)bd, 0, sizeof(bd_t));
283 env_init(); /* initialize environment */
284 init_baudrate(); /* initialze baudrate settings */
285 serial_init(); /* serial communications setup */
287 #ifdef CONFIG_ICACHE_ON
290 #ifdef CONFIG_DCACHE_ON
293 display_banner(); /* say that we are here */
295 for (i = 0; i < page_descriptor_table_size; i++) {
297 ("data (%02i)= 0x%08x : 0x%08x intr = 0x%08x : 0x%08x\n",
298 i, dcplb_table[i][0], dcplb_table[i][1], icplb_table[i][0],
303 #if defined(CONFIG_RTC_BF533) && (CONFIG_COMMANDS & CFG_CMD_DATE)
307 printf("Clock: VCO: %lu MHz, Core: %lu MHz, System: %lu MHz\n",
308 get_vco() / 1000000, get_cclk() / 1000000, get_sclk() / 1000000);
310 print_size(initdram(0), "\n");
311 #if defined(CONFIG_BF537)&&defined(CONFIG_POST)
313 post_bootmode_init();
314 post_run(NULL, POST_ROM | post_bootmode_get(0));
316 board_init_r((gd_t *) gd, 0x20000010);
319 #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
320 static int init_func_i2c(void)
323 i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
329 void board_init_r(gd_t * id, ulong dest_addr)
331 DECLARE_GLOBAL_DATA_PTR;
333 extern void malloc_bin_reloc(void);
338 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
341 #if defined(CONFIG_BF537) && defined(CONFIG_POST)
342 post_output_backlog();
346 #if (CONFIG_STAMP || CONFIG_BF537 || CONFIG_EZKIT561) && !defined(CFG_NO_FLASH)
347 /* There are some other pointer constants we must deal with */
348 /* configure available FLASH banks */
350 display_flash_config(size);
351 flash_protect(FLAG_PROTECT_SET, CFG_FLASH_BASE,
352 CFG_FLASH_BASE + 0x1ffff, &flash_info[0]);
353 bd->bi_flashstart = CFG_FLASH_BASE;
354 bd->bi_flashsize = size;
355 bd->bi_flashoffset = 0;
357 bd->bi_flashstart = 0;
358 bd->bi_flashsize = 0;
359 bd->bi_flashoffset = 0;
361 /* initialize malloc() area */
366 # if ! defined(CFG_ENV_IS_IN_EEPROM)
372 /* relocate environment function pointers etc. */
375 /* board MAC address */
376 s = getenv("ethaddr");
377 for (i = 0; i < 6; ++i) {
378 bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
380 s = (*e) ? e + 1 : e;
384 bd->bi_ip_addr = getenv_IPaddr("ipaddr");
386 /* Initialize devices */
390 /* Initialize the console (after the relocation and devices init) */
393 /* Initialize from environment */
394 if ((s = getenv("loadaddr")) != NULL) {
395 load_addr = simple_strtoul(s, NULL, 16);
397 #if (CONFIG_COMMANDS & CFG_CMD_NET)
398 if ((s = getenv("bootfile")) != NULL) {
399 copy_filename(BootFile, s, sizeof(BootFile));
403 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
405 nand_init(); /* go init the NAND */
408 #if defined(CONFIG_MISC_INIT_R)
409 /* miscellaneous platform dependent initialisations */
413 #if ((BFIN_CPU == ADSP_BF537) || (BFIN_CPU == ADSP_BF536))
418 #ifdef CONFIG_DRIVER_SMC91111
419 #ifdef SHARED_RESOURCES
420 /* Switch to Ethernet */
423 if ((SMC_inw(BANK_SELECT) & UPPER_BYTE_MASK) != SMC_IDENT) {
424 printf("ERROR: Can't find SMC91111 at address %x\n",
427 printf("Net: SMC91111 at 0x%08X\n", SMC_BASE_ADDRESS);
430 #ifdef SHARED_RESOURCES
434 #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
439 display_global_data();
442 #if defined(CONFIG_BF537) && defined(CONFIG_POST)
444 post_run(NULL, POST_RAM | post_bootmode_get(0));
447 /* main_loop() can return to retry autoboot, if so just run it again. */
455 puts("### ERROR ### Please RESET the board ###\n");