lynxkdi.c 1.9 KB

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  1. /*
  2. * Copyright (c) Orbacom Systems, Inc <www.orbacom.com>
  3. * All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms are freely
  6. * permitted provided that the above copyright notice and this
  7. * paragraph and the following disclaimer are duplicated in all
  8. * such forms.
  9. *
  10. * This software is provided "AS IS" and without any express or
  11. * implied warranties, including, without limitation, the implied
  12. * warranties of merchantability and fitness for a particular
  13. * purpose.
  14. */
  15. #include <common.h>
  16. #include <asm/processor.h>
  17. #include <image.h>
  18. #include <net.h>
  19. #include <lynxkdi.h>
  20. DECLARE_GLOBAL_DATA_PTR;
  21. #if defined(CONFIG_MPC8260) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
  22. void lynxkdi_boot (image_header_t *hdr)
  23. {
  24. void (*lynxkdi)(void) = (void(*)(void))image_get_ep (hdr);
  25. lynxos_bootparms_t *parms = (lynxos_bootparms_t *)0x0020;
  26. bd_t *kbd;
  27. u32 *psz = (u32 *)(image_get_load (hdr) + 0x0204);
  28. memset (parms, 0, sizeof(*parms));
  29. kbd = gd->bd;
  30. parms->clock_ref = kbd->bi_busfreq;
  31. parms->dramsz = kbd->bi_memsize;
  32. eth_getenv_enetaddr("ethaddr", parms->ethaddr);
  33. mtspr (SPRN_SPRG2, 0x0020);
  34. /* Do a simple check for Bluecat so we can pass the
  35. * kernel command line parameters.
  36. */
  37. if (le32_to_cpu (*psz) == image_get_data_size (hdr)) { /* FIXME: NOT SURE HERE ! */
  38. char *args;
  39. char *cmdline = (char *)(image_get_load (hdr) + 0x020c);
  40. int len;
  41. printf ("Booting Bluecat KDI ...\n");
  42. udelay (200*1000); /* Allow serial port to flush */
  43. if ((args = getenv ("bootargs")) == NULL)
  44. args = "";
  45. /* Prepend the cmdline */
  46. len = strlen (args);
  47. if (len && (len + strlen (cmdline) + 2 < (0x0400 - 0x020c))) {
  48. memmove (cmdline + strlen (args) + 1, cmdline, strlen (cmdline));
  49. strcpy (cmdline, args);
  50. cmdline[len] = ' ';
  51. }
  52. }
  53. else {
  54. printf ("Booting LynxOS KDI ...\n");
  55. }
  56. lynxkdi ();
  57. }
  58. #else
  59. #error "Lynx KDI support not implemented for configured CPU"
  60. #endif