| 1 | /* |
| 2 | * arch/ubicom32/mach-common/bootargs.c |
| 3 | * Board init and support code. |
| 4 | * |
| 5 | * (C) Copyright 2009, Ubicom, Inc. |
| 6 | * |
| 7 | * This file is part of the Ubicom32 Linux Kernel Port. |
| 8 | * |
| 9 | * The Ubicom32 Linux Kernel Port is free software: you can redistribute |
| 10 | * it and/or modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation, either version 2 of the |
| 12 | * License, or (at your option) any later version. |
| 13 | * |
| 14 | * The Ubicom32 Linux Kernel Port is distributed in the hope that it |
| 15 | * will be useful, but WITHOUT ANY WARRANTY; without even the implied |
| 16 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 17 | * the GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with the Ubicom32 Linux Kernel Port. If not, |
| 21 | * see <http://www.gnu.org/licenses/>. |
| 22 | * |
| 23 | * Ubicom32 implementation derived from (with many thanks): |
| 24 | * arch/m68knommu |
| 25 | * arch/blackfin |
| 26 | * arch/parisc |
| 27 | */ |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/types.h> |
| 30 | #include <linux/cpu.h> |
| 31 | #include <asm/devtree.h> |
| 32 | |
| 33 | struct bootargsnode { |
| 34 | struct devtree_node dn; |
| 35 | const char cmdline[512]; |
| 36 | }; |
| 37 | |
| 38 | static const struct bootargsnode *ban; |
| 39 | |
| 40 | /* |
| 41 | * bootargs_get_cmdline() |
| 42 | * Returns kernel boot arguments set by the bootloader. |
| 43 | */ |
| 44 | const char *bootargs_get_cmdline(void) |
| 45 | { |
| 46 | if (!ban) { |
| 47 | return ""; |
| 48 | } |
| 49 | |
| 50 | return ban->cmdline; |
| 51 | } |
| 52 | |
| 53 | /* |
| 54 | * bootargs_init |
| 55 | */ |
| 56 | void __init bootargs_init(void) |
| 57 | { |
| 58 | ban = (struct bootargsnode *)devtree_find_node("bootargs"); |
| 59 | if (!ban) { |
| 60 | printk(KERN_WARNING "bootargs node not found\n"); |
| 61 | return; |
| 62 | } |
| 63 | } |
| 64 | |
