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.
15 #include <environment.h>
22 #include <asm/mach-common/bits/mpu.h>
24 #ifdef CONFIG_CMD_NAND
25 #include <nand.h> /* cannot even include nand.h if it isnt configured */
28 #if defined(CONFIG_POST)
33 DECLARE_GLOBAL_DATA_PTR
;
35 const char version_string
[] = U_BOOT_VERSION
" (" __DATE__
" - " __TIME__
")";
37 __attribute__((always_inline
))
38 static inline void serial_early_puts(const char *s
)
40 #ifdef CONFIG_DEBUG_EARLY_SERIAL
41 serial_puts("Early: ");
46 /* Get the input voltage */
47 static u_long
get_vco(void)
52 msel
= (*pPLL_CTL
>> 9) & 0x3F;
56 vco
= CONFIG_CLKIN_HZ
;
57 vco
>>= (1 & *pPLL_CTL
); /* DF bit */
62 /* Get the Core clock */
67 return CONFIG_CLKIN_HZ
;
70 csel
= ((ssel
>> 4) & 0x03);
72 if (ssel
&& ssel
< (1 << csel
)) /* SCLK > CCLK */
73 return get_vco() / ssel
;
74 return get_vco() >> csel
;
77 /* Get the System clock */
83 return CONFIG_CLKIN_HZ
;
85 ssel
= (*pPLL_DIV
& 0xf);
87 return get_vco() / ssel
;
90 static void *mem_malloc_start
, *mem_malloc_end
, *mem_malloc_brk
;
92 static void mem_malloc_init(void)
94 mem_malloc_start
= (void *)CFG_MALLOC_BASE
;
95 mem_malloc_end
= (void *)(CFG_MALLOC_BASE
+ CFG_MALLOC_LEN
);
96 mem_malloc_brk
= mem_malloc_start
;
97 memset(mem_malloc_start
, 0, mem_malloc_end
- mem_malloc_start
);
100 void *sbrk(ptrdiff_t increment
)
102 void *old
= mem_malloc_brk
;
103 void *new = old
+ increment
;
105 if (new < mem_malloc_start
|| new > mem_malloc_end
)
108 mem_malloc_brk
= new;
113 static int display_banner(void)
115 printf("\n\n%s\n\n", version_string
);
116 printf("CPU: ADSP " MK_STR(CONFIG_BFIN_CPU
) " (Detected Rev: 0.%d)\n", bfin_revid());
120 static int init_baudrate(void)
123 int i
= getenv_r("baudrate", baudrate
, sizeof(baudrate
));
124 gd
->bd
->bi_baudrate
= gd
->baudrate
= (i
> 0)
125 ? simple_strtoul(baudrate
, NULL
, 10)
130 static void display_global_data(void)
132 #ifdef CONFIG_DEBUG_EARLY_SERIAL
135 printf(" gd: %x\n", gd
);
136 printf(" |-flags: %x\n", gd
->flags
);
137 printf(" |-board_type: %x\n", gd
->board_type
);
138 printf(" |-baudrate: %i\n", gd
->baudrate
);
139 printf(" |-have_console: %x\n", gd
->have_console
);
140 printf(" |-ram_size: %x\n", gd
->ram_size
);
141 printf(" |-reloc_off: %x\n", gd
->reloc_off
);
142 printf(" |-env_addr: %x\n", gd
->env_addr
);
143 printf(" |-env_valid: %x\n", gd
->env_valid
);
144 printf(" |-jt(%x): %x\n", gd
->jt
, *(gd
->jt
));
145 printf(" \\-bd: %x\n", gd
->bd
);
146 printf(" |-bi_baudrate: %x\n", bd
->bi_baudrate
);
147 printf(" |-bi_ip_addr: %x\n", bd
->bi_ip_addr
);
148 printf(" |-bi_enetaddr: %x %x %x %x %x %x\n",
149 bd
->bi_enetaddr
[0], bd
->bi_enetaddr
[1],
150 bd
->bi_enetaddr
[2], bd
->bi_enetaddr
[3],
151 bd
->bi_enetaddr
[4], bd
->bi_enetaddr
[5]);
152 printf(" |-bi_boot_params: %x\n", bd
->bi_boot_params
);
153 printf(" |-bi_memstart: %x\n", bd
->bi_memstart
);
154 printf(" |-bi_memsize: %x\n", bd
->bi_memsize
);
155 printf(" |-bi_flashstart: %x\n", bd
->bi_flashstart
);
156 printf(" |-bi_flashsize: %x\n", bd
->bi_flashsize
);
157 printf(" \\-bi_flashoffset: %x\n", bd
->bi_flashoffset
);
161 #define CPLB_PAGE_SIZE (4 * 1024 * 1024)
162 #define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
163 void init_cplbtables(void)
165 volatile uint32_t *ICPLB_ADDR
, *ICPLB_DATA
;
166 volatile uint32_t *DCPLB_ADDR
, *DCPLB_DATA
;
167 uint32_t extern_memory
;
170 void icplb_add(uint32_t addr
, uint32_t data
)
172 *(ICPLB_ADDR
+ i
) = addr
;
173 *(ICPLB_DATA
+ i
) = data
;
175 void dcplb_add(uint32_t addr
, uint32_t data
)
177 *(DCPLB_ADDR
+ i
) = addr
;
178 *(DCPLB_DATA
+ i
) = data
;
181 /* populate a few common entries ... we'll let
182 * the memory map and cplb exception handler do
183 * the rest of the work.
186 ICPLB_ADDR
= (uint32_t *)ICPLB_ADDR0
;
187 ICPLB_DATA
= (uint32_t *)ICPLB_DATA0
;
188 DCPLB_ADDR
= (uint32_t *)DCPLB_ADDR0
;
189 DCPLB_DATA
= (uint32_t *)DCPLB_DATA0
;
191 icplb_add(0xFFA00000, L1_IMEMORY
);
192 dcplb_add(0xFF800000, L1_DMEMORY
);
195 icplb_add(CFG_MONITOR_BASE
& CPLB_PAGE_MASK
, SDRAM_IKERNEL
);
196 dcplb_add(CFG_MONITOR_BASE
& CPLB_PAGE_MASK
, SDRAM_DKERNEL
);
199 /* If the monitor crosses a 4 meg boundary, we'll need
200 * to lock two entries for it.
202 if ((CFG_MONITOR_BASE
& CPLB_PAGE_MASK
) != ((CFG_MONITOR_BASE
+ CFG_MONITOR_LEN
) & CPLB_PAGE_MASK
)) {
203 icplb_add((CFG_MONITOR_BASE
+ CFG_MONITOR_LEN
) & CPLB_PAGE_MASK
, SDRAM_IKERNEL
);
204 dcplb_add((CFG_MONITOR_BASE
+ CFG_MONITOR_LEN
) & CPLB_PAGE_MASK
, SDRAM_DKERNEL
);
208 icplb_add(0x20000000, SDRAM_INON_CHBL
);
209 dcplb_add(0x20000000, SDRAM_EBIU
);
212 /* Add entries for the rest of external RAM up to the bootrom */
215 #ifdef CONFIG_DEBUG_NULL_PTR
216 icplb_add(extern_memory
, (SDRAM_IKERNEL
& ~PAGE_SIZE_MASK
) | PAGE_SIZE_1KB
);
217 dcplb_add(extern_memory
, (SDRAM_DKERNEL
& ~PAGE_SIZE_MASK
) | PAGE_SIZE_1KB
);
219 icplb_add(extern_memory
, SDRAM_IKERNEL
);
220 dcplb_add(extern_memory
, SDRAM_DKERNEL
);
221 extern_memory
+= CPLB_PAGE_SIZE
;
225 while (i
< 16 && extern_memory
< (CFG_MONITOR_BASE
& CPLB_PAGE_MASK
)) {
226 icplb_add(extern_memory
, SDRAM_IGENERIC
);
227 dcplb_add(extern_memory
, SDRAM_DGENERIC
);
228 extern_memory
+= CPLB_PAGE_SIZE
;
239 * All attempts to come up with a "common" initialization sequence
240 * that works for all boards and architectures failed: some of the
241 * requirements are just _too_ different. To get rid of the resulting
242 * mess of board dependend #ifdef'ed code we now make the whole
243 * initialization sequence configurable to the user.
245 * The requirements for any new initalization function is simple: it
246 * receives a pointer to the "global data" structure as it's only
247 * argument, and returns an integer return code, where 0 means
248 * "continue" and != 0 means "fatal error, hang the system".
251 extern int exception_init(void);
252 extern int irq_init(void);
253 extern int rtc_init(void);
254 extern int timer_init(void);
256 void board_init_f(ulong bootflag
)
261 #ifdef CONFIG_BOARD_EARLY_INIT_F
262 serial_early_puts("Board early init flash\n");
263 board_early_init_f();
266 serial_early_puts("Init CPLB tables\n");
269 serial_early_puts("Exceptions setup\n");
272 #ifndef CONFIG_ICACHE_OFF
273 serial_early_puts("Turn on ICACHE\n");
276 #ifndef CONFIG_DCACHE_OFF
277 serial_early_puts("Turn on DCACHE\n");
281 serial_early_puts("Init global data\n");
282 gd
= (gd_t
*) (CFG_GBL_DATA_ADDR
);
283 memset((void *)gd
, 0, sizeof(gd_t
));
285 /* Board data initialization */
286 addr
= (CFG_GBL_DATA_ADDR
+ sizeof(gd_t
));
288 /* Align to 4 byte boundary */
292 memset((void *)bd
, 0, sizeof(bd_t
));
294 bd
->bi_r_version
= version_string
;
295 bd
->bi_cpu
= MK_STR(CONFIG_BFIN_CPU
);
296 bd
->bi_board_name
= BFIN_BOARD_NAME
;
297 bd
->bi_vco
= get_vco();
298 bd
->bi_cclk
= get_cclk();
299 bd
->bi_sclk
= get_sclk();
302 serial_early_puts("IRQ init\n");
304 serial_early_puts("Environment init\n");
306 serial_early_puts("Baudrate init\n");
308 serial_early_puts("Serial init\n");
310 serial_early_puts("Console init flash\n");
312 serial_early_puts("End of early debugging\n");
316 #if defined(CONFIG_RTC_BFIN) && defined(CONFIG_CMD_DATE)
321 printf("Clock: VCO: %lu MHz, Core: %lu MHz, System: %lu MHz\n",
322 get_vco() / 1000000, get_cclk() / 1000000, get_sclk() / 1000000);
325 print_size(initdram(0), "\n");
326 #if defined(CONFIG_POST)
328 post_bootmode_init();
329 post_run(NULL
, POST_ROM
| post_bootmode_get(0));
332 board_init_r((gd_t
*) gd
, 0x20000010);
335 #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
336 static int init_func_i2c(void)
339 i2c_init(CFG_I2C_SPEED
, CFG_I2C_SLAVE
);
345 void board_init_r(gd_t
* id
, ulong dest_addr
)
347 extern void malloc_bin_reloc(void);
351 gd
->flags
|= GD_FLG_RELOC
; /* tell others: relocation done */
354 #if defined(CONFIG_POST)
355 post_output_backlog();
359 #if !defined(CFG_NO_FLASH)
360 /* There are some other pointer constants we must deal with */
361 /* configure available FLASH banks */
362 extern flash_info_t flash_info
[];
363 ulong size
= flash_init();
365 print_size(size
, "\n");
366 flash_protect(FLAG_PROTECT_SET
, CFG_FLASH_BASE
,
367 CFG_FLASH_BASE
+ 0x1ffff, &flash_info
[0]);
368 bd
->bi_flashstart
= CFG_FLASH_BASE
;
369 bd
->bi_flashsize
= size
;
370 bd
->bi_flashoffset
= 0;
372 bd
->bi_flashstart
= 0;
373 bd
->bi_flashsize
= 0;
374 bd
->bi_flashoffset
= 0;
376 /* initialize malloc() area */
381 # if ! defined(CFG_ENV_IS_IN_EEPROM)
387 /* relocate environment function pointers etc. */
390 #ifdef CONFIG_CMD_NET
391 /* board MAC address */
392 s
= getenv("ethaddr");
394 # ifndef CONFIG_ETHADDR
396 if (!board_get_enetaddr(bd
->bi_enetaddr
)) {
398 sprintf(nid
, "%02X:%02X:%02X:%02X:%02X:%02X",
399 bd
->bi_enetaddr
[0], bd
->bi_enetaddr
[1],
400 bd
->bi_enetaddr
[2], bd
->bi_enetaddr
[3],
401 bd
->bi_enetaddr
[4], bd
->bi_enetaddr
[5]);
402 setenv("ethaddr", nid
);
409 for (i
= 0; i
< 6; ++i
) {
410 bd
->bi_enetaddr
[i
] = simple_strtoul(s
, &e
, 16);
411 s
= (*e
) ? e
+ 1 : e
;
416 bd
->bi_ip_addr
= getenv_IPaddr("ipaddr");
419 /* Initialize devices */
423 /* Initialize the console (after the relocation and devices init) */
426 /* Initialize from environment */
427 if ((s
= getenv("loadaddr")) != NULL
)
428 load_addr
= simple_strtoul(s
, NULL
, 16);
429 #ifdef CONFIG_CMD_NET
430 if ((s
= getenv("bootfile")) != NULL
)
431 copy_filename(BootFile
, s
, sizeof(BootFile
));
434 #ifdef CONFIG_CMD_NAND
436 nand_init(); /* go init the NAND */
439 #if defined(CONFIG_MISC_INIT_R)
440 /* miscellaneous platform dependent initialisations */
444 #ifdef CONFIG_CMD_NET
446 eth_initialize(gd
->bd
);
447 if (getenv("ethaddr"))
448 printf("MAC: %02X:%02X:%02X:%02X:%02X:%02X\n",
449 bd
->bi_enetaddr
[0], bd
->bi_enetaddr
[1], bd
->bi_enetaddr
[2],
450 bd
->bi_enetaddr
[3], bd
->bi_enetaddr
[4], bd
->bi_enetaddr
[5]);
453 #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C)
457 display_global_data();
459 #if defined(CONFIG_POST)
461 post_run(NULL
, POST_RAM
| post_bootmode_get(0));
464 /* main_loop() can return to retry autoboot, if so just run it again. */
471 puts("### ERROR ### Please RESET the board ###\n");
473 /* If a JTAG emulator is hooked up, we'll automatically trigger
474 * a breakpoint in it. If one isn't, this is just a NOP.