From 3628f93cf5d671e4b63c6cda559f58d4721bdba1 Mon Sep 17 00:00:00 2001 From: Edward O'Callaghan Date: Wed, 21 May 2014 07:00:48 +1000 Subject: mainboard/ibase/mb899: Break out superio hwm conf from mainboard Break out the PNP Super I/O HWM configuration from mainboard.c Change-Id: Ib4c7f26c7fa2a9845250a61a23c75cb9e440ab93 Signed-off-by: Edward O'Callaghan Reviewed-on: http://review.coreboot.org/5797 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones --- src/mainboard/ibase/mb899/superio_hwm.c | 161 ++++++++++++++++++++++++++++++++ 1 file changed, 161 insertions(+) create mode 100644 src/mainboard/ibase/mb899/superio_hwm.c (limited to 'src/mainboard/ibase/mb899/superio_hwm.c') diff --git a/src/mainboard/ibase/mb899/superio_hwm.c b/src/mainboard/ibase/mb899/superio_hwm.c new file mode 100644 index 0000000000..7864264d41 --- /dev/null +++ b/src/mainboard/ibase/mb899/superio_hwm.c @@ -0,0 +1,161 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2009 coresystems GmbH + * Copyright (C) 2014 Edward O'Callaghan + * + * 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 + +#include "superio_hwm.h" + +/* Hardware Monitor */ + +#define FAN_CRUISE_CONTROL_DISABLED 0 +#define FAN_CRUISE_CONTROL_SPEED 1 +#define FAN_CRUISE_CONTROL_THERMAL 2 + +#define FAN_SPEED_5625 0 +//#define FAN_TEMPERATURE_30DEGC 0 + +#define HWM_BASE 0x290 + +static void hwm_write(u8 reg, u8 value) +{ + outb(reg, HWM_BASE + 0x05); + outb(value, HWM_BASE + 0x06); +} + +static void hwm_bank(u8 bank) +{ + hwm_write(0x4e, bank); +} + +struct fan_speed { + u8 fan_in; + u16 fan_speed; +}; + +// FANIN Target Speed Register +// FANIN = 337500 / RPM +struct fan_speed fan_speeds[] = { + { 0x3c, 5625 }, { 0x41, 5192 }, { 0x47, 4753 }, { 0x4e, 4326 }, + { 0x56, 3924 }, { 0x5f, 3552 }, { 0x69, 3214 }, { 0x74, 2909 }, + { 0x80, 2636 }, { 0x8d, 2393 }, { 0x9b, 2177 }, { 0xaa, 1985 }, + { 0xba, 1814 }, { 0xcb, 1662 }, { 0xdd, 1527 }, { 0xf0, 1406 } +}; + +struct temperature { + u8 deg_celsius; + u8 deg_fahrenheit; +}; + +struct temperature temperatures[] = { + { 30, 86 }, { 33, 91 }, { 36, 96 }, { 39, 102 }, + { 42, 107 }, { 45, 113 }, { 48, 118 }, { 51, 123 }, + { 54, 129 }, { 57, 134 }, { 60, 140 }, { 63, 145 }, + { 66, 150 }, { 69, 156 }, { 72, 161 }, { 75, 167 } +}; + +void hwm_setup(void) +{ + int cpufan_control = 0, sysfan_control = 0; + int cpufan_speed = 0, sysfan_speed = 0; + int cpufan_temperature = 0, sysfan_temperature = 0; + + if (get_option(&cpufan_control, "cpufan_cruise_control") != CB_SUCCESS) + cpufan_control = FAN_CRUISE_CONTROL_DISABLED; + if (get_option(&cpufan_speed, "cpufan_speed") != CB_SUCCESS) + cpufan_speed = FAN_SPEED_5625; + //if (get_option(&cpufan_temperature, "cpufan_temperature") != CB_SUCCESS) + // cpufan_temperature = FAN_TEMPERATURE_30DEGC; + + if (get_option(&sysfan_control, "sysfan_cruise_control") != CB_SUCCESS) + sysfan_control = FAN_CRUISE_CONTROL_DISABLED; + if (get_option(&sysfan_speed, "sysfan_speed") != CB_SUCCESS) + sysfan_speed = FAN_SPEED_5625; + //if (get_option(&sysfan_temperature, "sysfan_temperature") != CB_SUCCESS) + // sysfan_temperature = FAN_TEMPERATURE_30DEGC; + + // hwm_write(0x31, 0x20); // AVCC high limit + // hwm_write(0x34, 0x06); // VIN2 low limit + + hwm_bank(0); + hwm_write(0x59, 0x20); // Diode Selection + hwm_write(0x5d, 0x0f); // All Sensors Diode, not Thermistor + + hwm_bank(4); + hwm_write(0x54, 0xf1); // SYSTIN temperature offset + hwm_write(0x55, 0x19); // CPUTIN temperature offset + hwm_write(0x56, 0xfc); // AUXTIN temperature offset + + hwm_bank(0x80); // Default + + u8 fan_config = 0; + // 00 FANOUT is Manual Mode + // 01 FANOUT is Thermal Cruise Mode + // 10 FANOUT is Fan Speed Cruise Mode + switch (cpufan_control) { + case FAN_CRUISE_CONTROL_SPEED: fan_config |= (2 << 4); break; + case FAN_CRUISE_CONTROL_THERMAL: fan_config |= (1 << 4); break; + } + switch (sysfan_control) { + case FAN_CRUISE_CONTROL_SPEED: fan_config |= (2 << 2); break; + case FAN_CRUISE_CONTROL_THERMAL: fan_config |= (1 << 2); break; + } + // This register must be written first + hwm_write(0x04, fan_config); + + switch (cpufan_control) { + case FAN_CRUISE_CONTROL_SPEED: + printk(BIOS_DEBUG, "Fan Cruise Control setting CPU fan to %d RPM\n", + fan_speeds[cpufan_speed].fan_speed); + hwm_write(0x06, fan_speeds[cpufan_speed].fan_in); // CPUFANIN target speed + break; + case FAN_CRUISE_CONTROL_THERMAL: + printk(BIOS_DEBUG, "Fan Cruise Control setting CPU fan to activation at %d deg C/%d deg F\n", + temperatures[cpufan_temperature].deg_celsius, + temperatures[cpufan_temperature].deg_fahrenheit); + hwm_write(0x06, temperatures[cpufan_temperature].deg_celsius); // CPUFANIN target temperature + break; + } + + switch (sysfan_control) { + case FAN_CRUISE_CONTROL_SPEED: + printk(BIOS_DEBUG, "Fan Cruise Control setting system fan to %d RPM\n", + fan_speeds[sysfan_speed].fan_speed); + hwm_write(0x05, fan_speeds[sysfan_speed].fan_in); // SYSFANIN target speed + break; + case FAN_CRUISE_CONTROL_THERMAL: + printk(BIOS_DEBUG, "Fan Cruise Control setting system fan to activation at %d deg C/%d deg F\n", + temperatures[sysfan_temperature].deg_celsius, + temperatures[sysfan_temperature].deg_fahrenheit); + hwm_write(0x05, temperatures[sysfan_temperature].deg_celsius); // SYSFANIN target temperature + break; + } + + hwm_write(0x0e, 0x02); // Fan Output Step Down Time + hwm_write(0x0f, 0x02); // Fan Output Step Up Time + + hwm_write(0x47, 0xaf); // FAN divisor register + hwm_write(0x4b, 0x84); // AUXFANIN speed divisor + + hwm_write(0x40, 0x01); // Init, but no SMI# +} -- cgit v1.2.3