board.c 5.0 KB

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  1. /*
  2. * (C) Copyright 2007 Michal Simek
  3. * (C) Copyright 2004 Atmark Techno, Inc.
  4. *
  5. * Michal SIMEK <monstr@monstr.eu>
  6. * Yasushi SHOJI <yashi@atmark-techno.com>
  7. *
  8. * SPDX-License-Identifier: GPL-2.0+
  9. */
  10. #include <common.h>
  11. #include <command.h>
  12. #include <malloc.h>
  13. #include <version.h>
  14. #include <watchdog.h>
  15. #include <stdio_dev.h>
  16. #include <serial.h>
  17. #include <net.h>
  18. #include <spi.h>
  19. #include <linux/compiler.h>
  20. #include <asm/processor.h>
  21. #include <asm/microblaze_intc.h>
  22. #include <fdtdec.h>
  23. DECLARE_GLOBAL_DATA_PTR;
  24. static int display_banner(void)
  25. {
  26. printf("\n\n%s\n\n", version_string);
  27. return 0;
  28. }
  29. /*
  30. * All attempts to come up with a "common" initialization sequence
  31. * that works for all boards and architectures failed: some of the
  32. * requirements are just _too_ different. To get rid of the resulting
  33. * mess of board dependend #ifdef'ed code we now make the whole
  34. * initialization sequence configurable to the user.
  35. *
  36. * The requirements for any new initalization function is simple: it
  37. * receives a pointer to the "global data" structure as it's only
  38. * argument, and returns an integer return code, where 0 means
  39. * "continue" and != 0 means "fatal error, hang the system".
  40. */
  41. typedef int (init_fnc_t) (void);
  42. init_fnc_t *init_sequence[] = {
  43. env_init,
  44. #ifdef CONFIG_OF_CONTROL
  45. fdtdec_check_fdt,
  46. #endif
  47. serial_init,
  48. #ifndef CONFIG_SPL_BUILD
  49. console_init_f,
  50. #endif
  51. display_banner,
  52. #ifndef CONFIG_SPL_BUILD
  53. interrupts_init,
  54. timer_init,
  55. #endif
  56. NULL,
  57. };
  58. unsigned long monitor_flash_len;
  59. void board_init_f(ulong not_used)
  60. {
  61. bd_t *bd;
  62. init_fnc_t **init_fnc_ptr;
  63. gd = (gd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
  64. bd = (bd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET
  65. - GENERATED_BD_INFO_SIZE);
  66. #if defined(CONFIG_CMD_FLASH) && !defined(CONFIG_SPL_BUILD)
  67. ulong flash_size = 0;
  68. #endif
  69. asm ("nop"); /* FIXME gd is not initialize - wait */
  70. memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
  71. memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
  72. gd->bd = bd;
  73. gd->baudrate = CONFIG_BAUDRATE;
  74. bd->bi_baudrate = CONFIG_BAUDRATE;
  75. bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
  76. bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
  77. gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
  78. monitor_flash_len = __end - __text_start;
  79. #ifdef CONFIG_OF_EMBED
  80. /* Get a pointer to the FDT */
  81. gd->fdt_blob = __dtb_dt_begin;
  82. #elif defined CONFIG_OF_SEPARATE
  83. /* FDT is at end of image */
  84. gd->fdt_blob = (void *)__end;
  85. #endif
  86. #ifndef CONFIG_SPL_BUILD
  87. /* Allow the early environment to override the fdt address */
  88. gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
  89. (uintptr_t)gd->fdt_blob);
  90. #endif
  91. /*
  92. * The Malloc area is immediately below the monitor copy in DRAM
  93. * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
  94. * as our monitory code is run from SDRAM
  95. */
  96. mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
  97. serial_initialize();
  98. #ifdef CONFIG_XILINX_TB_WATCHDOG
  99. hw_watchdog_init();
  100. #endif
  101. for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
  102. WATCHDOG_RESET();
  103. if ((*init_fnc_ptr) () != 0)
  104. hang();
  105. }
  106. #ifndef CONFIG_SPL_BUILD
  107. #ifdef CONFIG_OF_CONTROL
  108. /* For now, put this check after the console is ready */
  109. if (fdtdec_prepare_fdt())
  110. panic("** No FDT - please see doc/README.fdt-control");
  111. else
  112. printf("DTB: 0x%x\n", (u32)gd->fdt_blob);
  113. #endif
  114. puts("SDRAM :\n");
  115. printf("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
  116. printf("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
  117. printf("\tU-Boot Start:0x%08x\n", CONFIG_SYS_TEXT_BASE);
  118. #if defined(CONFIG_CMD_FLASH)
  119. puts("Flash: ");
  120. bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
  121. flash_size = flash_init();
  122. if (bd->bi_flashstart && flash_size > 0) {
  123. # ifdef CONFIG_SYS_FLASH_CHECKSUM
  124. print_size(flash_size, "");
  125. /*
  126. * Compute and print flash CRC if flashchecksum is set to 'y'
  127. *
  128. * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
  129. */
  130. if (getenv_yesno("flashchecksum") == 1) {
  131. printf(" CRC: %08X",
  132. crc32(0, (const u8 *)bd->bi_flashstart,
  133. flash_size)
  134. );
  135. }
  136. putc('\n');
  137. # else /* !CONFIG_SYS_FLASH_CHECKSUM */
  138. print_size(flash_size, "\n");
  139. # endif /* CONFIG_SYS_FLASH_CHECKSUM */
  140. bd->bi_flashsize = flash_size;
  141. bd->bi_flashoffset = bd->bi_flashstart + flash_size;
  142. } else {
  143. puts("Flash init FAILED");
  144. bd->bi_flashstart = 0;
  145. bd->bi_flashsize = 0;
  146. bd->bi_flashoffset = 0;
  147. }
  148. #endif
  149. #ifdef CONFIG_SPI
  150. spi_init();
  151. #endif
  152. /* relocate environment function pointers etc. */
  153. env_relocate();
  154. /* Initialize stdio devices */
  155. stdio_init();
  156. /* Initialize the jump table for applications */
  157. jumptable_init();
  158. /* Initialize the console (after the relocation and devices init) */
  159. console_init_r();
  160. board_init();
  161. /* Initialize from environment */
  162. load_addr = getenv_ulong("loadaddr", 16, load_addr);
  163. #if defined(CONFIG_CMD_NET)
  164. printf("Net: ");
  165. eth_initialize(gd->bd);
  166. uchar enetaddr[6];
  167. eth_getenv_enetaddr("ethaddr", enetaddr);
  168. printf("MAC: %pM\n", enetaddr);
  169. #endif
  170. /* main_loop */
  171. for (;;) {
  172. WATCHDOG_RESET();
  173. main_loop();
  174. }
  175. #endif /* CONFIG_SPL_BUILD */
  176. }