elppc.c 4.6 KB

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  1. /*
  2. * (C) Copyright 2002 ELTEC Elektronik AG
  3. * Frank Gottschling <fgottschling@eltec.de>
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. #include <common.h>
  24. #include <command.h>
  25. #include <mpc106.h>
  26. #include <video_fb.h>
  27. /* ------------------------------------------------------------------------- */
  28. int checkboard (void)
  29. {
  30. puts ("Board: ELTEC PowerPC\n");
  31. return (0);
  32. }
  33. /* ------------------------------------------------------------------------- */
  34. int checkflash (void)
  35. {
  36. /* TODO */
  37. printf ("Test not implemented !\n");
  38. return (0);
  39. }
  40. /* ------------------------------------------------------------------------- */
  41. static unsigned int mpc106_read_cfg_dword (unsigned int reg)
  42. {
  43. unsigned int reg_addr = MPC106_REG | (reg & 0xFFFFFFFC);
  44. out32r(MPC106_REG_ADDR, reg_addr);
  45. return (in32r(MPC106_REG_DATA | (reg & 0x3)));
  46. }
  47. /* ------------------------------------------------------------------------- */
  48. long int dram_size (int board_type)
  49. {
  50. /*
  51. * No actual initialisation to do - done when setting up
  52. * PICRs MCCRs ME/SARs etc in asm_init.S.
  53. */
  54. register unsigned long i, msar1, mear1, memSize;
  55. #if defined(CFG_MEMTEST)
  56. register unsigned long reg;
  57. printf("Testing DRAM\n");
  58. /* write each mem addr with it's address */
  59. for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg+=4)
  60. *reg = reg;
  61. for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg+=4)
  62. {
  63. if (*reg != reg)
  64. return -1;
  65. }
  66. #endif
  67. /*
  68. * Since MPC107 memory controller chip has already been set to
  69. * control all memory, just read and interpret its memory boundery register.
  70. */
  71. memSize = 0;
  72. msar1 = mpc106_read_cfg_dword(MPC106_MSAR1);
  73. mear1 = mpc106_read_cfg_dword(MPC106_MEAR1);
  74. i = mpc106_read_cfg_dword(MPC106_MBER) & 0xf;
  75. do
  76. {
  77. if (i & 0x01) /* is bank enabled ? */
  78. memSize += (mear1 & 0xff) - (msar1 & 0xff) + 1;
  79. msar1 >>= 8;
  80. mear1 >>= 8;
  81. i >>= 1;
  82. } while (i);
  83. return (memSize * 0x100000);
  84. }
  85. /* ------------------------------------------------------------------------- */
  86. long int initdram(int board_type)
  87. {
  88. return dram_size(board_type);
  89. }
  90. /* ------------------------------------------------------------------------- */
  91. /*
  92. * The BAB 911 can be reset by writing bit 0 of the Processor Initialization
  93. * Register PI in the MPC 107 (at offset 0x41090 of the Embedded Utilities
  94. * Memory Block).
  95. */
  96. void do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
  97. {
  98. out8(MPC107_EUMB_PI, 1);
  99. }
  100. /* ------------------------------------------------------------------------- */
  101. #if defined(CONFIG_WATCHDOG)
  102. /*
  103. * Since the 7xx CPUs don't have an internal watchdog, this function is
  104. * board specific.
  105. */
  106. void watchdog_reset(void)
  107. {
  108. }
  109. #endif /* CONFIG_WATCHDOG */
  110. /* ------------------------------------------------------------------------- */
  111. void after_reloc (ulong dest_addr)
  112. {
  113. DECLARE_GLOBAL_DATA_PTR;
  114. /*
  115. * Jump to the main U-Boot board init code
  116. */
  117. board_init_r(gd, dest_addr);
  118. }
  119. /* ------------------------------------------------------------------------- */
  120. #ifdef CONFIG_CONSOLE_EXTRA_INFO
  121. extern GraphicDevice smi;
  122. void video_get_info_str (int line_number, char *info)
  123. {
  124. /* init video info strings for graphic console */
  125. switch (line_number)
  126. {
  127. case 1:
  128. sprintf (info," MPC7xx V%d.%d at %d / %d MHz",
  129. (get_pvr() >> 8) & 0xFF,
  130. get_pvr() & 0xFF,
  131. 400,
  132. 100);
  133. return;
  134. case 2:
  135. sprintf (info, " ELTEC ELPPC with %ld MB DRAM and %ld MB FLASH",
  136. dram_size(0)/0x100000,
  137. flash_init()/0x100000);
  138. return;
  139. case 3:
  140. sprintf (info, " %s", smi.modeIdent);
  141. return;
  142. }
  143. /* no more info lines */
  144. *info = 0;
  145. return;
  146. }
  147. #endif