prom.c 782 B

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Procedures for creating, accessing and interpreting the device tree.
  4. *
  5. * Paul Mackerras August 1996.
  6. * Copyright (C) 1996-2005 Paul Mackerras.
  7. *
  8. * Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
  9. * {engebret|bergner}@us.ibm.com
  10. */
  11. #include <linux/kernel.h>
  12. #include <linux/string.h>
  13. #include <linux/memblock.h>
  14. #include <linux/of_fdt.h>
  15. void __init early_init_devtree(void *params)
  16. {
  17. pr_debug(" -> early_init_devtree(%p)\n", params);
  18. early_init_dt_scan(params);
  19. if (!strlen(boot_command_line))
  20. strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
  21. memblock_allow_resize();
  22. pr_debug("Phys. mem: %lx\n", (unsigned long) memblock_phys_mem_size());
  23. pr_debug(" <- early_init_devtree()\n");
  24. }