| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| /* |
| * The ASUS M2N-E has 6 different fans, connected to two different chips: |
| * - ITE IT8716F: fan1 = CPU_FAN, fan2 = CHA_FAN1, fan3 = PWR_FAN1 |
| * - Analog Devices ADT7475: fan1 = CHA_FAN4, fan2 = CHA_FAN2, fan3 = CHA_FAN3 |
| */ |
| |
| #include <arch/io.h> |
| #include <stdlib.h> |
| #include <superio/ite/it8716f/it8716f.h> |
| |
| static void write_index(u16 port, u8 reg, u8 value) |
| { |
| outb(reg, port); |
| outb(value, port + 1); |
| } |
| |
| static const struct { |
| u8 index; |
| u8 value; |
| } sequence[] = { |
| /* Enable startup of monitoring operations. */ |
| { 0x00, 0x11}, |
| /* Polarity active-high, PWM frequency 23.43KHz, activate fans 1-3. */ |
| { 0x14, 0xd7}, |
| /* Set the correct sensor types. TMPIN1: diode, TMPIN2/3: resistor. */ |
| { 0x51, 0x31}, |
| /* Fan1 (CPU_FAN) is software-controlled. */ |
| { 0x15, 0x7f}, |
| /* Fan2 (CHA_FAN1) is software-controlled. */ |
| { 0x16, 0x7f}, |
| /* Fan3 (PWR_FAN1) is software-controlled. */ |
| { 0x17, 0x7f}, |
| /* Enable fan1/2/3, select "on/off mode" for all of them. */ |
| { 0x13, 0x70}, |
| }; |
| |
| /* Called from src/ite/it8716f/superio.c. */ |
| void init_ec(u16 base) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(sequence); i++) |
| write_index(base, sequence[i].index, sequence[i].value); |
| } |