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-rw-r--r--src/mainboard/google/zork/variants/ezkinil/overridetree.cb7
-rw-r--r--src/mainboard/google/zork/variants/morphius/overridetree.cb5
2 files changed, 11 insertions, 1 deletions
diff --git a/src/mainboard/google/zork/variants/ezkinil/overridetree.cb b/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
index a60f427d71..26af3942a8 100644
--- a/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
+++ b/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
@@ -22,7 +22,12 @@ chip soc/amd/picasso
# End : OPN Performance Configuration
- register "xhci0_force_gen1" = "1"
+ register "usb3_port_force_gen1" = "{
+ .ports.xhci0_port0 = 1,
+ .ports.xhci0_port1 = 1,
+ .ports.xhci0_port2 = 1,
+ .ports.xhci0_port3 = 1,
+ }"
# Enable I2C2 for trackpad, touchscreen, pen at 400kHz
register "i2c[2]" = "{
diff --git a/src/mainboard/google/zork/variants/morphius/overridetree.cb b/src/mainboard/google/zork/variants/morphius/overridetree.cb
index 3ba7851c72..41e1c70a74 100644
--- a/src/mainboard/google/zork/variants/morphius/overridetree.cb
+++ b/src/mainboard/google/zork/variants/morphius/overridetree.cb
@@ -30,6 +30,11 @@ chip soc/amd/picasso
# End : OPN Performance Configuration
+ register "usb3_port_force_gen1" = "{
+ .ports.xhci0_port1 = 1, /* Left USB3A port 1 */
+ .ports.xhci0_port2 = 1, /* Left USB3A port 2 */
+ }"
+
# Enable I2C2 for trackpad, touchscreen, pen at 400kHz
register "i2c[2]" = "{
.speed = I2C_SPEED_FAST,