H8 EC: add volume CMOS setting

Change-Id: I5332c8fa52556db34dfb5e772bf544f0323e823d
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/12
Tested-by: build bot (Jenkins)

src/ec/lenovo/h8/h8.c

@@ -25,6 +25,7 @@
 #include <stdlib.h>
 #include "h8.h"
 #include "chip.h"
+#include <pc80/mc146818rtc.h>
 
 void h8_trackpoint_enable(int on)
 {
@@ -95,6 +96,8 @@ int h8_ultrabay_device_present(void)
 static void h8_enable(device_t dev)
 {
 	struct ec_lenovo_h8_config *conf = dev->chip_info;
+	u8 val;
+
 	h8_log_ec_version();
 
 	ec_write(H8_CONFIG0, conf->config0);
@@ -127,6 +130,8 @@ static void h8_enable(device_t dev)
 	h8_wlan_enable(conf->wlan_enable);
 	h8_trackpoint_enable(conf->trackpoint_enable);
 
+	if (!get_option(&val, "volume"))
+		ec_write(H8_VOLUME_CONTROL, val);
 }
 
 struct chip_operations ec_lenovo_h8_ops = {

src/ec/lenovo/h8/h8.h

@@ -70,6 +70,9 @@ int h8_ultrabay_device_present(void);
 
 #define H8_FAN_CONTROL			0x2f
 #define H8_FAN_CONTROL_AUTO		0x80
+
+#define H8_VOLUME_CONTROL		0x30
+#define H8_VOLUME_CONTROL_MUTE		0x40
 /* Embedded controller events */
 #define H8_EVENT_FN_F1	0x10
 #define H8_EVENT_FN_F2	0x11

src/mainboard/lenovo/t60/cmos.layout

@@ -108,6 +108,7 @@ entries
 1052         4       r       0        C1DRT1
 
 1060         1       e       1        touchpad
+1064         8       h       0        volume
 # -----------------------------------------------------------------
 
 enumerations

src/mainboard/lenovo/x60/cmos.layout

@@ -107,6 +107,7 @@ entries
 1048         4       r       0        C0DRT1
 1052         4       r       0        C1DRT1
 
+1064         8       h       0        volume
 # -----------------------------------------------------------------
 
 enumerations