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-rw-r--r--src/mainboard/lenovo/t520/cmos.default1
-rw-r--r--src/mainboard/lenovo/t520/cmos.layout8
-rw-r--r--src/mainboard/lenovo/t520/smihandler.c2
3 files changed, 9 insertions, 2 deletions
diff --git a/src/mainboard/lenovo/t520/cmos.default b/src/mainboard/lenovo/t520/cmos.default
index 92dc2e1555..5c21f9c7fa 100644
--- a/src/mainboard/lenovo/t520/cmos.default
+++ b/src/mainboard/lenovo/t520/cmos.default
@@ -15,3 +15,4 @@ sticky_fn=Disable
trackpoint=Enable
backlight=Both
hybrid_graphics_mode=Integrated Only
+usb_always_on=Disable
diff --git a/src/mainboard/lenovo/t520/cmos.layout b/src/mainboard/lenovo/t520/cmos.layout
index 3c450c7e16..80759040a7 100644
--- a/src/mainboard/lenovo/t520/cmos.layout
+++ b/src/mainboard/lenovo/t520/cmos.layout
@@ -67,9 +67,9 @@ entries
416 1 e 1 trackpoint
417 1 e 1 fn_ctrl_swap
418 1 e 1 sticky_fn
-#419 2 r 0 unused
+419 2 e 13 usb_always_on
421 1 e 9 sata_mode
-422 2 e 10 backlight
+422 2 e 10 backlight
# coreboot config options: cpu
#424 8 r 0 unused
@@ -136,6 +136,10 @@ enumerations
11 6 224M
12 0 Integrated Only
12 1 Discrete Only
+13 0 Disable
+13 1 AC and battery
+13 2 AC only
+
# -----------------------------------------------------------------
checksums
diff --git a/src/mainboard/lenovo/t520/smihandler.c b/src/mainboard/lenovo/t520/smihandler.c
index c48cf3d765..3fa8e3032d 100644
--- a/src/mainboard/lenovo/t520/smihandler.c
+++ b/src/mainboard/lenovo/t520/smihandler.c
@@ -107,6 +107,8 @@ int mainboard_smi_apmc(u8 data)
void mainboard_smi_sleep(u8 slp_typ)
{
+ h8_usb_always_on();
+
if (slp_typ == 3) {
u8 ec_wake = ec_read(0x32);
/* If EC wake events are enabled, enable wake on EC WAKE GPE. */