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authorTed Kuo <tedkuo@ami.com.tw>2015-03-27 18:59:07 +0800
committerMartin Roth <martinroth@google.com>2015-12-31 17:40:17 +0100
commit08debacad18a946892d8046af5d892c493d8c383 (patch)
tree288855eb6131b9a9930247ad166147119f1c10b4 /src/superio
parent4e8f23b896fe31851c26e056ee55fb8191419fa0 (diff)
downloadcoreboot-08debacad18a946892d8046af5d892c493d8c383.tar.xz
superio/it8772f: Add register to set the default value of FAN speed
Original-Signed-off-by: Ted Kuo <tedkuo@ami.com.tw> Change-Id: I70d7b572e9ae030136a39fb6fa933f486d559aef Original-Reviewed-on: https://chromium-review.googlesource.com/262832 Original-Reviewed-by: Shawn N <shawnn@chromium.org> Original-Commit-Queue: Ted Kuo <tedkuo@ami.com.tw> Original-Tested-by: Ted Kuo <tedkuo@ami.com.tw> Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/12799 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src/superio')
-rw-r--r--src/superio/ite/it8772f/chip.h6
-rw-r--r--src/superio/ite/it8772f/superio.c22
2 files changed, 20 insertions, 8 deletions
diff --git a/src/superio/ite/it8772f/chip.h b/src/superio/ite/it8772f/chip.h
index 0d80fb833c..6ae3989e6c 100644
--- a/src/superio/ite/it8772f/chip.h
+++ b/src/superio/ite/it8772f/chip.h
@@ -49,6 +49,12 @@ struct superio_ite_it8772f_config {
u8 fan1_enable;
u8 fan2_enable;
u8 fan3_enable;
+
+ /*
+ * Default FAN speed
+ */
+ u8 fan2_speed;
+ u8 fan3_speed;
};
#endif /* SUPERIO_ITE_IT8772F_CHIP_H */
diff --git a/src/superio/ite/it8772f/superio.c b/src/superio/ite/it8772f/superio.c
index 2d897d83ba..400bbbe001 100644
--- a/src/superio/ite/it8772f/superio.c
+++ b/src/superio/ite/it8772f/superio.c
@@ -137,7 +137,7 @@ static void it8772f_enable_tmpin(struct resource *res, int tmpin,
/*
* Setup a FAN PWM interface for software control
*/
-static void it8772f_enable_fan(struct resource *res, int fan)
+static void it8772f_enable_fan(struct resource *res, int fan, u8 fan_speed)
{
u8 reg;
@@ -165,8 +165,10 @@ static void it8772f_enable_fan(struct resource *res, int fan)
/* Disable Smoothing */
it8772f_envc_write(res, IT8772F_FAN_CTL2_AUTO_MODE,
IT8772F_FAN_CTL_AUTO_SMOOTHING_DIS);
- /* Set a default medium fan speed */
- it8772f_envc_write(res, IT8772F_FAN_CTL2_PWM_START, 0x80);
+ /* Set a default fan speed */
+ if (fan_speed)
+ it8772f_envc_write(res, IT8772F_FAN_CTL2_PWM_START,
+ fan_speed);
break;
case 3:
/* Enable software operation */
@@ -175,8 +177,10 @@ static void it8772f_enable_fan(struct resource *res, int fan)
/* Disable Smoothing */
it8772f_envc_write(res, IT8772F_FAN_CTL3_AUTO_MODE,
IT8772F_FAN_CTL_AUTO_SMOOTHING_DIS);
- /* Set a default medium fan speed */
- it8772f_envc_write(res, IT8772F_FAN_CTL3_PWM_START, 0x80);
+ /* Set a default fan speed */
+ if (fan_speed)
+ it8772f_envc_write(res, IT8772F_FAN_CTL3_PWM_START,
+ fan_speed);
break;
}
}
@@ -206,11 +210,13 @@ static void it8772f_init(struct device *dev)
/* Enable FANx if configured */
if (conf->fan1_enable)
- it8772f_enable_fan(res, 1);
+ it8772f_enable_fan(res, 1, 0);
if (conf->fan2_enable)
- it8772f_enable_fan(res, 2);
+ it8772f_enable_fan(res, 2,
+ conf->fan2_speed ? conf->fan2_speed : 0x80);
if (conf->fan3_enable)
- it8772f_enable_fan(res, 3);
+ it8772f_enable_fan(res, 3,
+ conf->fan3_speed ? conf->fan3_speed : 0x80);
/*
* System may get wrong temperature data when SIO is in