diff --git a/src/mainboard/google/brya/variants/taeko/overridetree.cb b/src/mainboard/google/brya/variants/taeko/overridetree.cb
index 4398fa5e74..8ad5479ac6 100644
--- a/src/mainboard/google/brya/variants/taeko/overridetree.cb
+++ b/src/mainboard/google/brya/variants/taeko/overridetree.cb
@@ -41,6 +41,19 @@ fw_config
 	end
 end
 chip soc/intel/alderlake
+	register "ext_fivr_settings" = "{
+		.configure_ext_fivr = 1,
+		.v1p05_enable_bitmap = FIVR_ENABLE_ALL_SX,
+		.vnn_enable_bitmap = FIVR_ENABLE_ALL_SX,
+		.v1p05_supported_voltage_bitmap = FIVR_VOLTAGE_NORMAL |
+							FIVR_VOLTAGE_MIN_ACTIVE |
+							FIVR_VOLTAGE_MIN_RETENTION,
+		.vnn_supported_voltage_bitmap = FIVR_VOLTAGE_NORMAL |
+							FIVR_VOLTAGE_MIN_ACTIVE |
+							FIVR_VOLTAGE_MIN_RETENTION,
+		.v1p05_icc_max_ma = 500,
+		.vnn_sx_voltage_mv = 1250,
+	}"
 	register "TcssAuxOri" = "1"
 	register "typec_aux_bias_pads[0]" = "{.pad_auxp_dc = GPP_E22, .pad_auxn_dc = GPP_E23}"
 	register "SaGv" = "SaGv_Enabled"