| Daniel Laird | edb6310 | 2008-06-16 15:49:21 +0100 | [diff] [blame] | 1 | /* |
| 2 | * prom.c: |
| 3 | * |
| 4 | * Copyright 2008 NXP Semiconductors |
| 5 | * Chris Steel <chris.steel@nxp.com> |
| 6 | * Daniel Laird <daniel.j.laird@nxp.com> |
| 7 | * |
| 8 | * Based on software written by: |
| 9 | * Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | */ |
| 25 | #include <linux/init.h> |
| 26 | #include <asm/bootinfo.h> |
| 27 | #include <linux/string.h> |
| 28 | |
| 29 | void __init prom_init_cmdline(void) |
| 30 | { |
| 31 | int argc = fw_arg0; |
| 32 | char **argv = (char **)fw_arg1; |
| 33 | char *c = &(arcs_cmdline[0]); |
| 34 | int i; |
| 35 | |
| 36 | for (i = 1; i < argc; i++) { |
| 37 | strcpy(c, argv[i]); |
| 38 | c += strlen(argv[i]); |
| 39 | if (i < argc-1) |
| 40 | *c++ = ' '; |
| 41 | } |
| 42 | *c = 0; |
| 43 | } |
| 44 | |
| 45 | char __init *prom_getenv(char *envname) |
| 46 | { |
| 47 | extern char **prom_envp; |
| 48 | char **env = prom_envp; |
| 49 | int i; |
| 50 | |
| 51 | i = strlen(envname); |
| 52 | |
| 53 | while (*env) { |
| 54 | if (strncmp(envname, *env, i) == 0 && *(*env+i) == '=') |
| 55 | return *env + i + 1; |
| 56 | env++; |
| 57 | } |
| 58 | |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | void __init prom_free_prom_memory(void) |
| 63 | { |
| 64 | } |