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 <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5797
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
diff --git a/src/mainboard/ibase/mb899/superio_hwm.c b/src/mainboard/ibase/mb899/superio_hwm.c
new file mode 100644
index 0000000..7864264
--- /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 <eocallaghan@alterapraxis.com>
+ *
+ * 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 <types.h>
+#include <arch/io.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <pc80/mc146818rtc.h>
+
+#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#
+}