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authorRonald Hoogenboom <hoogenboom30@zonnet.nl>2008-06-22 14:33:17 +0000
committerWard Vandewege <ward@gnu.org>2008-06-22 14:33:17 +0000
commitfb73fa1bcb3ac3579ad786911c09f05950c8b3a8 (patch)
tree412e11d0159aaed5e3c132c2fb364b3074c343ad /src/mainboard/gigabyte
parent14669ae023e9bb502866e9a49fb0577870dbda80 (diff)
downloadcoreboot-fb73fa1bcb3ac3579ad786911c09f05950c8b3a8.tar.xz
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
Diffstat (limited to 'src/mainboard/gigabyte')
-rw-r--r--src/mainboard/gigabyte/m57sli/fanctl.c40
1 files changed, 32 insertions, 8 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