| 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 | |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/string.h> |
| 14 | #include <linux/memblock.h> |
| 15 | #include <linux/of_fdt.h> |
| 16 | |
| 17 | void __init early_init_devtree(void *params) |
| 18 | { |
| 19 | pr_debug(" -> early_init_devtree(%p)\n", params); |
| 20 | |
| 21 | early_init_dt_scan(dt_virt: params, __pa(params)); |
| 22 | if (!strlen(boot_command_line)) |
| 23 | strscpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE); |
| 24 | |
| 25 | memblock_allow_resize(); |
| 26 | |
| 27 | pr_debug("Phys. mem: %lx\n", (unsigned long) memblock_phys_mem_size()); |
| 28 | |
| 29 | pr_debug(" <- early_init_devtree()\n"); |
| 30 | } |
| 31 |