arch/sparc/lib/board.c

   1 /* SPARC Board initialization
   2  *
   3  * (C) Copyright 2000-2006
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  *
   6  * (C) Copyright 2007
   7  * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include <common.h>
  13 #include <command.h>
  14 #include <console.h>
  15 #include <malloc.h>
  16 #include <stdio_dev.h>
  17 #include <config.h>
  18 #if defined(CONFIG_CMD_IDE)
  19 #include <ide.h>
  20 #endif
  21 #ifdef CONFIG_STATUS_LED
  22 #include <status_led.h>
  23 #endif
  24 #include <net.h>
  25 #include <serial.h>
  26 #include <version.h>
  27 #if defined(CONFIG_POST)
  28 #include <post.h>
  29 #endif
  30 #ifdef CONFIG_PS2KBD
  31 #include <keyboard.h>
  32 #endif
  33 #ifdef CONFIG_CMD_AMBAPP
  34 #include <ambapp.h>
  35 #endif
  36
  37 #ifdef CONFIG_BITBANGMII
  38 #include <miiphy.h>
  39 #endif
  40
  41 DECLARE_GLOBAL_DATA_PTR;
  42
  43 /* Debug options
  44 #define DEBUG_INIT_SEQUENCE
  45 #define DEBUG_MEM_LAYOUT
  46 #define DEBUG_COMMANDS
  47 */
  48
  49 extern void timer_interrupt_init(void);
  50 extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]);
  51 extern int prom_init(void);
  52
  53 #if defined(CONFIG__CMD_DOC)
  54 void doc_init(void);
  55 #endif
  56
  57 #if !defined(CONFIG_SYS_NO_FLASH)
  58 static char *failed = "*** failed ***\n";
  59 #endif
  60
  61 #include <environment.h>
  62
  63 ulong monitor_flash_len;
  64
  65 /************************************************************************
  66  * Init Utilities                                                       *
  67  ************************************************************************
  68  * Some of this code should be moved into the core functions,
  69  * but let's get it working (again) first...
  70  */
  71
  72 static int init_baudrate(void)
  73 {
  74         gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
  75         return 0;
  76 }
  77
  78 /***********************************************************************/
  79
  80 /*
  81  * All attempts to come up with a "common" initialization sequence
  82  * that works for all boards and architectures failed: some of the
  83  * requirements are just _too_ different. To get rid of the resulting
  84  * mess of board dependend #ifdef'ed code we now make the whole
  85  * initialization sequence configurable to the user.
  86  *
  87  * The requirements for any new initalization function is simple: it
  88  * receives a pointer to the "global data" structure as it's only
  89  * argument, and returns an integer return code, where 0 means
  90  * "continue" and != 0 means "fatal error, hang the system".
  91  */
  92 typedef int (init_fnc_t) (void);
  93
  94 #define WATCHDOG_RESET(x)
  95
  96 /************************************************************************
  97  * Initialization sequence                                              *
  98  ************************************************************************
  99  */
 100
 101 init_fnc_t *init_sequence[] = {
 102
 103 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 104         board_early_init_f,
 105 #endif
 106         serial_init,
 107
 108         init_timebase,
 109
 110 #if defined(CONFIG_CMD_AMBAPP)
 111         ambapp_init_reloc,
 112 #endif
 113
 114         env_init,
 115
 116         init_baudrate,
 117
 118         console_init_f,
 119         display_options,
 120
 121         checkcpu,
 122         checkboard,
 123 #if defined(CONFIG_MISC_INIT_F)
 124         misc_init_f,
 125 #endif
 126
 127 #ifdef CONFIG_POST
 128         post_init_f,
 129 #endif
 130
 131         NULL,                   /* Terminate this list,
 132                                  * beware: this list will be relocated
 133                                  * which means that NULL will become
 134                                  * NULL+RELOC_OFFSET. We simply make
 135                                  * NULL be -RELOC_OFFSET instead.
 136                                  */
 137 };
 138
 139 /************************************************************************
 140  *
 141  * This is the SPARC board initialization routine, running from RAM.
 142  *
 143  ************************************************************************
 144  */
 145 #ifdef DEBUG_INIT_SEQUENCE
 146 char *str_init_seq = "INIT_SEQ 00\n";
 147 char *str_init_seq_done = "\n\rInit sequence done...\r\n\r\n";
 148 #endif
 149
 150 void board_init_f(ulong bootflag)
 151 {
 152         bd_t *bd;
 153         init_fnc_t **init_fnc_ptr;
 154         int j;
 155
 156 #ifndef CONFIG_SYS_NO_FLASH
 157         ulong flash_size;
 158 #endif
 159
 160         gd = (gd_t *) (CONFIG_SYS_GBL_DATA_OFFSET);
 161
 162         /* Clear initial global data */
 163         memset((void *)gd, 0, sizeof(gd_t));
 164
 165         gd->bd = (bd_t *) (gd + 1);     /* At end of global data */
 166         gd->baudrate = CONFIG_BAUDRATE;
 167         gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
 168
 169         bd = gd->bd;
 170         bd->bi_memstart = CONFIG_SYS_RAM_BASE;
 171         bd->bi_memsize = CONFIG_SYS_RAM_SIZE;
 172         bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
 173 #if     defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
 174         bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
 175         bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
 176 #endif
 177         bd->bi_bootflags = bootflag;    /* boot / reboot flag (for LynxOS)    */
 178
 179         gd->flags |= GD_FLG_RELOC;      /* tell others: relocation done */
 180         gd->reloc_off = CONFIG_SYS_RELOC_MONITOR_BASE - CONFIG_SYS_MONITOR_BASE;
 181
 182         for (init_fnc_ptr = init_sequence, j = 0; *init_fnc_ptr;
 183              ++init_fnc_ptr, j++) {
 184 #ifdef DEBUG_INIT_SEQUENCE
 185                 if (j > 9)
 186                         str_init_seq[9] = '0' + (j / 10);
 187                 str_init_seq[10] = '0' + (j - (j / 10) * 10);
 188                 serial_puts(str_init_seq);
 189 #endif
 190                 if ((*init_fnc_ptr + gd->reloc_off) () != 0) {
 191                         hang();
 192                 }
 193         }
 194 #ifdef DEBUG_INIT_SEQUENCE
 195         serial_puts(str_init_seq_done);
 196 #endif
 197
 198         /*
 199          * Now that we have DRAM mapped and working, we can
 200          * relocate the code and continue running from DRAM.
 201          *
 202          * Reserve memory at end of RAM for (top down in that order):
 203          *  - kernel log buffer
 204          *  - protected RAM
 205          *  - LCD framebuffer
 206          *  - monitor code
 207          *  - board info struct
 208          */
 209 #ifdef DEBUG_MEM_LAYOUT
 210         printf("CONFIG_SYS_MONITOR_BASE:       0x%lx\n", CONFIG_SYS_MONITOR_BASE);
 211         printf("CONFIG_ENV_ADDR:           0x%lx\n", CONFIG_ENV_ADDR);
 212         printf("CONFIG_SYS_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CONFIG_SYS_RELOC_MONITOR_BASE,
 213                CONFIG_SYS_MONITOR_LEN);
 214         printf("CONFIG_SYS_MALLOC_BASE:        0x%lx (%d)\n", CONFIG_SYS_MALLOC_BASE,
 215                CONFIG_SYS_MALLOC_LEN);
 216         printf("CONFIG_SYS_INIT_SP_OFFSET:     0x%lx (%d)\n", CONFIG_SYS_INIT_SP_OFFSET,
 217                CONFIG_SYS_STACK_SIZE);
 218         printf("CONFIG_SYS_PROM_OFFSET:        0x%lx (%d)\n", CONFIG_SYS_PROM_OFFSET,
 219                CONFIG_SYS_PROM_SIZE);
 220         printf("CONFIG_SYS_GBL_DATA_OFFSET:    0x%lx (%d)\n", CONFIG_SYS_GBL_DATA_OFFSET,
 221                GENERATED_GBL_DATA_SIZE);
 222 #endif
 223
 224 #ifdef CONFIG_POST
 225         post_bootmode_init();
 226         post_run(NULL, POST_ROM | post_bootmode_get(0));
 227 #endif
 228
 229 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
 230         /*
 231          * We have to relocate the command table manually
 232          */
 233         fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
 234                         ll_entry_count(cmd_tbl_t, cmd));
 235 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
 236
 237 #if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
 238         puts("AMBA:\n");
 239         do_ambapp_print(NULL, 0, 0, NULL);
 240 #endif
 241
 242         /* initialize higher level parts of CPU like time base and timers */
 243         cpu_init_r();
 244
 245         /* start timer */
 246         timer_interrupt_init();
 247
 248         /*
 249          * Enable Interrupts before any calls to udelay,
 250          * the flash driver may use udelay resulting in
 251          * a hang if not timer0 IRQ is enabled.
 252          */
 253         interrupt_init();
 254
 255         /* The Malloc area is immediately below the monitor copy in RAM */
 256         mem_malloc_init(CONFIG_SYS_MALLOC_BASE,
 257                         CONFIG_SYS_MALLOC_END - CONFIG_SYS_MALLOC_BASE);
 258
 259 #if !defined(CONFIG_SYS_NO_FLASH)
 260         puts("Flash: ");
 261
 262         if ((flash_size = flash_init()) > 0) {
 263 # ifdef CONFIG_SYS_FLASH_CHECKSUM
 264                 print_size(flash_size, "");
 265                 /*
 266                  * Compute and print flash CRC if flashchecksum is set to 'y'
 267                  *
 268                  * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
 269                  */
 270                 if (getenv_yesno("flashchecksum") == 1) {
 271                         printf("  CRC: %08lX",
 272                                crc32(0, (const unsigned char *)CONFIG_SYS_FLASH_BASE,
 273                                      flash_size)
 274                             );
 275                 }
 276                 putc('\n');
 277 # else                          /* !CONFIG_SYS_FLASH_CHECKSUM */
 278                 print_size(flash_size, "\n");
 279 # endif                         /* CONFIG_SYS_FLASH_CHECKSUM */
 280         } else {
 281                 puts(failed);
 282                 hang();
 283         }
 284
 285         bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;      /* update start of FLASH memory    */
 286         bd->bi_flashsize = flash_size;  /* size of FLASH memory (final value) */
 287 #if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
 288         bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor  */
 289 #else
 290         bd->bi_flashoffset = 0;
 291 #endif
 292 #else                           /* CONFIG_SYS_NO_FLASH */
 293         bd->bi_flashsize = 0;
 294         bd->bi_flashstart = 0;
 295         bd->bi_flashoffset = 0;
 296 #endif                          /* !CONFIG_SYS_NO_FLASH */
 297
 298 #ifdef CONFIG_SPI
 299 # if !defined(CONFIG_ENV_IS_IN_EEPROM)
 300         spi_init_f();
 301 # endif
 302         spi_init_r();
 303 #endif
 304
 305         /* relocate environment function pointers etc. */
 306         env_relocate();
 307
 308 #if defined(CONFIG_BOARD_LATE_INIT)
 309         board_late_init();
 310 #endif
 311
 312 #ifdef CONFIG_ID_EEPROM
 313         mac_read_from_eeprom();
 314 #endif
 315
 316 #if defined(CONFIG_PCI)
 317         /*
 318          * Do pci configuration
 319          */
 320         pci_init();
 321 #endif
 322
 323         /* Initialize stdio devices */
 324         stdio_init();
 325
 326         /* Initialize the jump table for applications */
 327         jumptable_init();
 328
 329         /* Initialize the console (after the relocation and devices init) */
 330         console_init_r();
 331
 332 #ifdef CONFIG_STATUS_LED
 333         status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
 334 #endif
 335
 336         udelay(20);
 337
 338         /* Initialize from environment */
 339         load_addr = getenv_ulong("loadaddr", 16, load_addr);
 340
 341         WATCHDOG_RESET();
 342
 343 #if defined(CONFIG_CMD_DOC)
 344         WATCHDOG_RESET();
 345         puts("DOC:   ");
 346         doc_init();
 347 #endif
 348
 349 #ifdef CONFIG_BITBANGMII
 350         bb_miiphy_init();
 351 #endif
 352 #if defined(CONFIG_CMD_NET)
 353         WATCHDOG_RESET();
 354         puts("Net:   ");
 355         eth_initialize();
 356 #endif
 357
 358 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
 359         WATCHDOG_RESET();
 360         debug("Reset Ethernet PHY\n");
 361         reset_phy();
 362 #endif
 363
 364 #ifdef CONFIG_POST
 365         post_run(NULL, POST_RAM | post_bootmode_get(0));
 366 #endif
 367
 368 #if defined(CONFIG_CMD_IDE)
 369         WATCHDOG_RESET();
 370         puts("IDE:   ");
 371         ide_init();
 372 #endif /* CONFIG_CMD_IDE */
 373
 374 #ifdef CONFIG_LAST_STAGE_INIT
 375         WATCHDOG_RESET();
 376         /*
 377          * Some parts can be only initialized if all others (like
 378          * Interrupts) are up and running (i.e. the PC-style ISA
 379          * keyboard).
 380          */
 381         last_stage_init();
 382 #endif
 383
 384 #ifdef CONFIG_PS2KBD
 385         puts("PS/2:  ");
 386         kbd_init();
 387 #endif
 388         prom_init();
 389
 390         /* main_loop */
 391         for (;;) {
 392                 WATCHDOG_RESET();
 393                 main_loop();
 394         }
 395
 396 }
 397
 398 /************************************************************************/