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-rw-r--r--src/mainboard/google/zork/variants/baseboard/devicetree.cb2
-rw-r--r--src/mainboard/google/zork/variants/ezkinil/overridetree.cb2
2 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/zork/variants/baseboard/devicetree.cb b/src/mainboard/google/zork/variants/baseboard/devicetree.cb
index 18c3783e83..3cc311b171 100644
--- a/src/mainboard/google/zork/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/zork/variants/baseboard/devicetree.cb
@@ -48,6 +48,8 @@ chip soc/amd/picasso
register "sd_emmc_config" = "SD_EMMC_EMMC_HS400"
+ register "xhci0_force_gen1" = "0"
+
# SPI Configuration
register "common_config.spi_config" = "{
.normal_speed = SPI_SPEED_66M, /* MHz */
diff --git a/src/mainboard/google/zork/variants/ezkinil/overridetree.cb b/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
index c208dae9ca..f7366acf0e 100644
--- a/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
+++ b/src/mainboard/google/zork/variants/ezkinil/overridetree.cb
@@ -22,6 +22,8 @@ chip soc/amd/picasso
# End : OPN Performance Configuration
+ register "xhci0_force_gen1" = "1"
+
# Enable I2C2 for trackpad, touchscreen, pen at 400kHz
register "i2c[2]" = "{
.speed = I2C_SPEED_FAST,