wdenk | 074cff0 | 2004-02-24 00:16:43 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2004 |
| 3 | * DAVE Srl |
| 4 | * http://www.dave-tech.it |
| 5 | * http://www.wawnet.biz |
| 6 | * mailto:info@wawnet.biz |
| 7 | * |
| 8 | * See file CREDITS for list of people who contributed to this |
| 9 | * project. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License as |
| 13 | * published by the Free Software Foundation; either version 2 of |
| 14 | * the License, or (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., 59 Temple Place, Suite 330, Boston, |
| 24 | * MA 02111-1307 USA |
| 25 | */ |
| 26 | |
| 27 | /* |
| 28 | * S3C44B0 CPU specific code |
| 29 | */ |
| 30 | |
| 31 | #include <common.h> |
| 32 | #include <command.h> |
| 33 | #include <asm/hardware.h> |
| 34 | |
Jean-Christophe PLAGNIOL-VILLARD | ad7e8aac | 2009-05-09 13:21:19 +0200 | [diff] [blame] | 35 | int arch_cpu_init (void) |
wdenk | 074cff0 | 2004-02-24 00:16:43 +0000 | [diff] [blame] | 36 | { |
| 37 | icache_enable(); |
| 38 | |
| 39 | return 0; |
| 40 | } |
| 41 | |
| 42 | int cleanup_before_linux (void) |
| 43 | { |
| 44 | /* |
| 45 | cache memory should be enabled before calling |
| 46 | Linux to make the kernel uncompression faster |
| 47 | */ |
| 48 | icache_enable(); |
| 49 | |
| 50 | disable_interrupts (); |
| 51 | |
| 52 | return 0; |
| 53 | } |
| 54 | |
| 55 | void reset_cpu (ulong addr) |
| 56 | { |
| 57 | /* |
| 58 | reset the cpu using watchdog |
| 59 | */ |
| 60 | |
| 61 | /* Disable the watchdog.*/ |
| 62 | WTCON&=~(1<<5); |
| 63 | |
| 64 | /* set the timeout value to a short time... */ |
| 65 | WTCNT = 0x1; |
| 66 | |
| 67 | /* Enable the watchdog. */ |
| 68 | WTCON|=1; |
| 69 | WTCON|=(1<<5); |
| 70 | |
| 71 | while(1) { |
| 72 | /*NOP*/ |
| 73 | } |
| 74 | } |