| Macpaul Lin | 6471556 | 2011-09-23 17:03:19 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2011 Andes Technology Corporation |
| 3 | * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <asm/arch-ag102/ag102.h> |
| 25 | #include <linux/linkage.h> |
| 26 | |
| 27 | .text |
| 28 | |
| 29 | #ifndef CONFIG_SKIP_TRUNOFF_WATCHDOG |
| 30 | ENTRY(turnoff_watchdog) |
| 31 | |
| 32 | #define WD_CR 0xC |
| 33 | #define WD_ENABLE 0x1 |
| 34 | |
| 35 | ! Turn off the watchdog, according to Faraday FTWDT010 spec |
| 36 | li $p0, (CONFIG_FTWDT010_BASE+WD_CR) ! Get the addr of WD CR |
| 37 | lwi $p1, [$p0] ! Get the config of WD |
| 38 | andi $p1, $p1, 0x1f ! Wipe out useless bits |
| 39 | li $r0, ~WD_ENABLE |
| 40 | and $p1, $p1, $r0 ! Set WD disable |
| 41 | sw $p1, [$p0] ! Write back to WD CR |
| 42 | |
| 43 | ! Disable Interrupts by clear GIE in $PSW reg |
| 44 | setgie.d |
| 45 | |
| 46 | ret |
| 47 | |
| 48 | ENDPROC(turnoff_watchdog) |
| 49 | #endif |