init_64.c 1.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * init.c: Initialize internal variables used by the PROM
  4. * library functions.
  5. *
  6. * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
  7. * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  8. */
  9. #include <linux/kernel.h>
  10. #include <linux/init.h>
  11. #include <linux/string.h>
  12. #include <linux/ctype.h>
  13. #include <asm/openprom.h>
  14. #include <asm/oplib.h>
  15. /* OBP version string. */
  16. char prom_version[80];
  17. /* The root node of the prom device tree. */
  18. int prom_stdout;
  19. phandle prom_chosen_node;
  20. /* You must call prom_init() before you attempt to use any of the
  21. * routines in the prom library.
  22. * It gets passed the pointer to the PROM vector.
  23. */
  24. extern void prom_cif_init(void *);
  25. void __init prom_init(void *cif_handler)
  26. {
  27. phandle node;
  28. prom_cif_init(cif_handler);
  29. prom_chosen_node = prom_finddevice(prom_chosen_path);
  30. if (!prom_chosen_node || (s32)prom_chosen_node == -1)
  31. prom_halt();
  32. prom_stdout = prom_getint(prom_chosen_node, "stdout");
  33. node = prom_finddevice("/openprom");
  34. if (!node || (s32)node == -1)
  35. prom_halt();
  36. prom_getstring(node, "version", prom_version, sizeof(prom_version));
  37. prom_printf("\n");
  38. }
  39. void __init prom_init_report(void)
  40. {
  41. printk("PROMLIB: Sun IEEE Boot Prom '%s'\n", prom_version);
  42. printk("PROMLIB: Root node compatible: %s\n", prom_root_compatible);
  43. }