| 1 | /************************************************************************** |
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| 2 | * |
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| 3 | * BRIEF MODULE DESCRIPTION |
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| 4 | * reboot/reset setting for Ralink RT2880 solution |
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| 5 | * |
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| 6 | * Copyright 2007 Ralink Inc. (bruce_chang@ralinktech.com.tw) |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or modify it |
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| 9 | * under the terms of the GNU General Public License as published by the |
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| 10 | * Free Software Foundation; either version 2 of the License, or (at your |
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| 11 | * option) any later version. |
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| 12 | * |
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| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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| 14 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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| 15 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
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| 16 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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| 19 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
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| 20 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 23 | * |
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| 24 | * You should have received a copy of the GNU General Public License along |
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| 25 | * with this program; if not, write to the Free Software Foundation, Inc., |
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| 26 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 27 | * |
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| 28 | * |
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| 29 | ************************************************************************** |
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| 30 | * May 2007 Bruce Chang |
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| 31 | * |
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| 32 | * Initial Release |
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| 33 | * |
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| 34 | * |
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| 35 | * |
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| 36 | ************************************************************************** |
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| 37 | */ |
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| 38 | |
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| 39 | |
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| 40 | |
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| 41 | #include <asm/reboot.h> |
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| 42 | #include <asm/rt2880/generic.h> |
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| 43 | #include <linux/pm.h> |
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| 44 | |
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| 45 | static void mips_machine_restart(char *command); |
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| 46 | static void mips_machine_halt(void); |
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| 47 | static void mips_machine_power_off(void); |
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| 48 | extern void ralink_reset(int reset_pin); |
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| 49 | |
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| 50 | static void mips_machine_restart(char *command) |
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| 51 | { |
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| 52 | #ifdef CONFIG_MTD_ESR6650 |
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| 53 | ralink_reset(7); |
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| 54 | #else |
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| 55 | *(volatile unsigned int*)(SOFTRES_REG) = GORESET; |
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| 56 | #endif |
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| 57 | } |
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| 58 | |
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| 59 | static void mips_machine_halt(void) |
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| 60 | { |
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| 61 | *(volatile unsigned int*)(SOFTRES_REG) = GORESET; |
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| 62 | } |
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| 63 | |
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| 64 | static void mips_machine_power_off(void) |
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| 65 | { |
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| 66 | *(volatile unsigned int*)(POWER_DIR_REG) = POWER_DIR_OUTPUT; |
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| 67 | *(volatile unsigned int*)(POWER_POL_REG) = 0; |
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| 68 | *(volatile unsigned int*)(POWEROFF_REG) = POWEROFF; |
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| 69 | } |
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| 70 | |
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| 71 | |
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| 72 | void mips_reboot_setup(void) |
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| 73 | { |
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| 74 | _machine_restart = mips_machine_restart; |
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| 75 | _machine_halt = mips_machine_halt; |
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| 76 | //_machine_power_off = mips_machine_power_off; |
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| 77 | pm_power_off = mips_machine_power_off; |
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| 78 | } |
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