diff --git a/src/mainboard/intel/adlrvp/Kconfig b/src/mainboard/intel/adlrvp/Kconfig
index 981ba31d16..3b59d03bea 100644
--- a/src/mainboard/intel/adlrvp/Kconfig
+++ b/src/mainboard/intel/adlrvp/Kconfig
@@ -39,6 +39,7 @@ config BOARD_INTEL_ADLRVP_RPL_EXT_EC
 	select INTEL_LPSS_UART_FOR_CONSOLE
 	select SOC_INTEL_ALDERLAKE_PCH_P
 	select GEN3_EXTERNAL_CLOCK_BUFFER
+	select DRIVERS_WWAN_FM350GL
 
 config BOARD_INTEL_ADLRVP_P_MCHP
 	select BOARD_INTEL_ADLRVP_COMMON
diff --git a/src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb b/src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb
index de5471cf65..2eea1e4583 100644
--- a/src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb
+++ b/src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb
@@ -57,5 +57,32 @@ chip soc/intel/alderlake
 				end
 			end
 		end
+		device ref pcie_rp6 on
+			# Enable WWAN PCIE 6 using clk 5
+			register "pch_pcie_rp[PCH_RP(6)]" = "{
+				.clk_src = 5,
+				.clk_req = 5,
+				.flags = PCIE_RP_LTR | PCIE_RP_AER,
+			}"
+			chip soc/intel/common/block/pcie/rtd3
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C5)"
+				register "reset_off_delay_ms" = "20"
+				register "srcclk_pin" = "5"
+				register "ext_pm_support" = "ACPI_PCIE_RP_EMIT_ALL"
+				register "skip_on_off_support" = "true"
+				device generic 0 alias rp6_rtd3 on
+				end
+			end
+			chip drivers/wwan/fm
+				register "fcpo_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F15)"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F14)"
+				register "perst_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C5)"
+				register "wake_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D18)"
+				register "add_acpi_dma_property" = "true"
+				use rp6_rtd3 as rtd3dev
+				device generic 0 on
+				end
+			end
+		end
 	end
 end