/* * This file is part of the coreboot project. * * Copyright (C) 2012 Advanced Micro Devices, Inc. * * 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; version 2 of the License. * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include "w83793.h" #include #include "chip.h" static int w83793_fan_limit(device_t dev, int fan, uint16_t limit) { return smbus_write_byte(dev, 0x90 + fan * 2, limit >> 8) || smbus_write_byte(dev, 0x91 + fan * 2, limit & 0xff); } static int w83793_bank(device_t dev, int bank) { return smbus_write_byte(dev, 0, bank); } static int w83793_td_level(device_t dev, int fan, const char *level) { fan *= 0x10; smbus_write_byte(dev, 0x30 + fan, level[0]); smbus_write_byte(dev, 0x31 + fan, level[1]); smbus_write_byte(dev, 0x32 + fan, level[2]); smbus_write_byte(dev, 0x33 + fan, level[3]); smbus_write_byte(dev, 0x34 + fan, level[4]); smbus_write_byte(dev, 0x35 + fan, level[5]); smbus_write_byte(dev, 0x36 + fan, level[6]); return 0; } static int w83793_tr_level(device_t dev, int fan, const char *level) { fan *= 0x10; smbus_write_byte(dev, 0x70 + fan, level[0]); smbus_write_byte(dev, 0x71 + fan, level[1]); smbus_write_byte(dev, 0x72 + fan, level[2]); smbus_write_byte(dev, 0x73 + fan, level[3]); smbus_write_byte(dev, 0x74 + fan, level[4]); smbus_write_byte(dev, 0x75 + fan, level[5]); smbus_write_byte(dev, 0x76 + fan, level[6]); return 0; } static int w83793_td_fan_level(device_t dev, int fan, const char *level) { fan *= 0x10; smbus_write_byte(dev, 0x38 + fan, level[0]); smbus_write_byte(dev, 0x39 + fan, level[1]); smbus_write_byte(dev, 0x3a + fan, level[2]); smbus_write_byte(dev, 0x3b + fan, level[3]); smbus_write_byte(dev, 0x3c + fan, level[4]); smbus_write_byte(dev, 0x3d + fan, level[5]); smbus_write_byte(dev, 0x3e + fan, level[6]); return 0; } static int w83793_tr_fan_level(device_t dev, int fan, const char *level) { fan *= 0x10; smbus_write_byte(dev, 0x78 + fan, level[0]); smbus_write_byte(dev, 0x79 + fan, level[1]); smbus_write_byte(dev, 0x7a + fan, level[2]); smbus_write_byte(dev, 0x7b + fan, level[3]); smbus_write_byte(dev, 0x7c + fan, level[4]); smbus_write_byte(dev, 0x7d + fan, level[5]); smbus_write_byte(dev, 0x7e + fan, level[6]); return 0; } static void w83793_init(device_t dev) { struct drivers_i2c_w83793_config *config = dev->chip_info; uint16_t id; int i; if (w83793_bank(dev, 0)) printk(BIOS_ERR, "%s: failed\n", __func__); if (!config) return; id = smbus_read_byte(dev, 0x0d); w83793_bank(dev, 0x80); id |= smbus_read_byte(dev, 0x0d) << 8; printk(BIOS_ERR, "ID: %04x\n", id); /* reset configuration */ smbus_write_byte(dev, 0x40, 0x80); smbus_write_byte(dev, 0x51, 0x06); /* Multi function control */ smbus_write_byte(dev, 0x58, config->mfc); /* FANIN_Ctrl */ smbus_write_byte(dev, 0x5c, config->fanin); /* Temperature reported by PECI */ smbus_write_byte(dev, 0x5e, 0xff); /* TR monitor enable */ smbus_write_byte(dev, 0x5f, config->tr_enable); /* PECI Agent configuration */ smbus_write_byte(dev, 0xd0, config->peci_agent_conf); /* TCase */ smbus_write_byte(dev, 0xd1, config->tcase0); smbus_write_byte(dev, 0xd2, config->tcase1); smbus_write_byte(dev, 0xd3, config->tcase2); smbus_write_byte(dev, 0xd4, config->tcase3); /* PECI Reportstyle */ smbus_write_byte(dev, 0xd5, 0x00); for (i = 0; i < 9; i++) w83793_fan_limit(dev, i, 0x768); /* Fan output style control */ smbus_write_byte(dev, 0xb0, 0x00); smbus_write_byte(dev, 0xb1, 0x00); /* FAN Uptime */ smbus_write_byte(dev, 0xc3, 0x02); /* FAN downtime */ smbus_write_byte(dev, 0xc4, 0x03); /* ALL FAN critical temperature */ smbus_write_byte(dev, 0xc5, config->critical_temperature); /* Temperature offset */ smbus_write_byte(dev, 0xa8, 0xf9); smbus_write_byte(dev, 0xa9, 0xf9); smbus_write_byte(dev, 0xaa, 0xf9); smbus_write_byte(dev, 0xab, 0xf9); /* BANK 2 */ smbus_write_byte(dev, 0x00, 0x02); /* TD FAN select */ smbus_write_byte(dev, 0x01, config->td1_fan_select); smbus_write_byte(dev, 0x02, config->td2_fan_select); smbus_write_byte(dev, 0x03, config->td3_fan_select); smbus_write_byte(dev, 0x04, config->td4_fan_select); smbus_write_byte(dev, 0x05, config->tr1_fan_select); smbus_write_byte(dev, 0x06, config->tr2_fan_select); /* FAN control mode */ smbus_write_byte(dev, 0x07, 0x00); /* hysteresis tolerance */ smbus_write_byte(dev, 0x08, 0xaa); smbus_write_byte(dev, 0x09, 0xaa); /* FanNonStop */ smbus_write_byte(dev, 0x18, 0x1d); smbus_write_byte(dev, 0x19, 0x04); smbus_write_byte(dev, 0x1a, 0x04); smbus_write_byte(dev, 0x1b, 0x04); smbus_write_byte(dev, 0x1c, 0x04); smbus_write_byte(dev, 0x1d, 0x04); smbus_write_byte(dev, 0x1e, 0x04); smbus_write_byte(dev, 0x1f, 0x04); /* FanStart */ smbus_write_byte(dev, 0x20, 0x08); smbus_write_byte(dev, 0x21, 0x08); smbus_write_byte(dev, 0x22, 0x08); smbus_write_byte(dev, 0x23, 0x08); smbus_write_byte(dev, 0x24, 0x08); smbus_write_byte(dev, 0x25, 0x08); smbus_write_byte(dev, 0x26, 0x08); smbus_write_byte(dev, 0x27, 0x08); for (i = 0; i < 4; i++) w83793_td_level(dev, i, (const char[]){ 0x32, 0x32, 0x32, 0x32, 0x37, 0x41, 0x4b }); for (i = 0; i < 2; i++) w83793_tr_level(dev, i, (const char[]){ 0x1e, 0x23, 0x28, 0x2d, 0x32, 0x37, 0x3c }); for (i = 0; i < 4; i++) w83793_td_fan_level(dev, i, (const char[]){ 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x26 }); for (i = 0; i < 2; i++) w83793_tr_fan_level(dev, i, (const char[]){ 0x08, 0x0c, 0x10, 0x18, 0x20, 0x30, 0x38 }); smbus_write_byte(dev, 0x00, 0x00); /* Fan output style */ smbus_write_byte(dev, 0xb4, 0x00); smbus_write_byte(dev, 0xb5, 0x00); /* start monitoring operation */ smbus_write_byte(dev, 0x40, 0x09); } static void w83793_noop(device_t dummy) { } static struct device_operations w83793_operations = { .read_resources = w83793_noop, .set_resources = w83793_noop, .enable_resources = w83793_noop, .init = w83793_init, }; static void enable_dev(device_t dev) { dev->ops = &w83793_operations; } struct chip_operations drivers_i2c_w83793_ops = { CHIP_NAME("Nuvoton W83793 Hardware Monitor") .enable_dev = enable_dev, };