Enable hardware fan control for m57sli.

Tested on v1 and v2 of the board.

Signed-off-by: Ronald Hoogenboom <hoogenboom30@zonnet.nl>
Signed-off-by: Ward Vandewege <ward@gnu.org>
Acked-by: Ronald Hoogenboom <hoogenboom30@zonnet.nl>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3381 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

2 files changed, 36 insertions, 12 deletions

diff --git a/src/mainboard/gigabyte/m57sli/fanctl.c b/src/mainboard/gigabyte/m57sli/fanctl.c
index 8b74014dbd..952392d9ef 100644
--- a/src/mainboard/gigabyte/m57sli/fanctl.c
+++ b/src/mainboard/gigabyte/m57sli/fanctl.c
@@ -9,16 +9,30 @@ static void write_index(uint16_t port_base, uint8_t reg, uint8_t value)
 static const struct {
 	uint8_t index, value;
 } sequence[]= {
+	/* Make sure we can monitor, and enable SMI# interrupt output */
+	{ 0x00, 0x13},
+	/* Disable fan interrupt status bits for SMI# */
+	{ 0x04, 0x37},
+	/* Disable VIN interrupt status bits for SMI# */
+	{ 0x05, 0xff},
+	/* Disable fan interrupt status bits for IRQ */
+	{ 0x07, 0x37},
+	/* Disable VIN interrupt status bits for IRQ */
+	{ 0x08, 0xff},
+	/* Disable external sensor interrupt */
+	{ 0x09, 0x87},
+	/* Enable 16 bit counter divisors */
+	{ 0x0c, 0x07},
 	/* Set FAN_CTL control register (0x14) polarity to high, and
 	   activate fans 1, 2 and 3. */
-	{ 0x14, 0x87},
+	{ 0x14, 0xd7},
 	/* set the correct sensor types 1,2 thermistor; 3 diode */
 	{ 0x51, 0x1c},
-	/* set the 'zero' voltage for diode type sensor */
+	/* set the 'zero' voltage for diode type sensor 3 */
 	{ 0x5c, 0x80},
 //	{ 0x56, 0xe5},
 //	{ 0x57, 0xe5},
-	{ 0x59, 0xe5},
+	{ 0x59, 0xec},
 	{ 0x5c, 0x00},
 	/* fan1 (controlled by temp3) control parameters */
 	/* fan off limit */
@@ -33,14 +47,24 @@ static const struct {
 	{ 0x64, 0x90},
 	/* direct-down and interval */
 	{ 0x65, 0x03},
+	/* temperature limit of fan stop for fan3 (automatic) */
+	{ 0x70, 0xff},
+	/* temperature limit of fan start for fan3 (automatic) */
+	{ 0x71, 0x14},
+	/* Set PWM start & slope for fan3 */
+	{ 0x73, 0x20},
+	/* Initialize PWM automatic mode slope values for fan3 */
+	{ 0x74, 0x90},
+	/* set smartguardian temperature interval for fan3 */
+	{ 0x75, 0x03},
 	/* fan1 auto controlled by temp3 */
 	{ 0x15, 0x82},
-	/* fan2 soft controlled, max speed */
-	{ 0x16, 0x7f},
-	/* fan3 soft controlled, 75% speed */
-	{ 0x17, 0x60},
+	/* fan2 auto controlled by temp3 */
+	{ 0x16, 0x82},
+	/* fan3 auto controlled by temp3 */
+	{ 0x17, 0x82},
 	/* all fans enable, fan1 ctl smart */
-	{ 0x13, 0x71}
+	{ 0x13, 0x77}
 };
 
 #define ARRAYSIZE(x) sizeof x/sizeof *x
diff --git a/src/superio/ite/it8716f/superio.c b/src/superio/ite/it8716f/superio.c
index 39aa416820..51f2eb4105 100644
--- a/src/superio/ite/it8716f/superio.c
+++ b/src/superio/ite/it8716f/superio.c
@@ -50,6 +50,9 @@ static void pnp_exit_ext_func_mode(device_t dev)
 	pnp_write_config(dev, 0x02, 0x02);
 }
 
+#ifdef HAVE_FANCTL
+extern void init_ec(uint16_t base);
+#else
 static void pnp_write_index(uint16_t port_base, uint8_t reg, uint8_t value)
 {
 	outb(reg, port_base);
@@ -62,9 +65,6 @@ static uint8_t pnp_read_index(uint16_t port_base, uint8_t reg)
 	return inb(port_base + 1);
 }
 
-/* #ifdef HAVE_FANCTL
-extern void init_ec(uint16_t base);
-#else */
 static void init_ec(uint16_t base)
 {
 	uint8_t value;
@@ -80,7 +80,7 @@ static void init_ec(uint16_t base)
 	printk_debug("FAN_CTL: reg = 0x%04x, writing value = 0x%02x\r\n",
 		     base + 0x14, value | 0x87);
 }
-//#endif
+#endif
 
 static void it8716f_init(device_t dev)
 {