mb/google/brya: Add 5G WWAN ACPI support for Brya and Redrix

Add FM350GL 5G WWAN support using drivers/wwan/fm and addtional PM
features from RTD3.

Signed-off-by: Cliff Huang <cliff.huang@intel.com>
Change-Id: I6413f106ce6ef6c895d4861f4dbe26ac9a507d25
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61355
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/mainboard/google/brya/Kconfig

@@ -18,6 +18,7 @@ config BOARD_GOOGLE_BRYA_COMMON
 	select DRIVERS_SOUNDWIRE_MAX98373
 	select DRIVERS_SPI_ACPI
 	select DRIVERS_WIFI_GENERIC
+	select DRIVERS_WWAN_FM350GL
 	select EC_GOOGLE_CHROMEEC
 	select EC_GOOGLE_CHROMEEC_BOARDID
 	select EC_GOOGLE_CHROMEEC_ESPI

src/mainboard/google/brya/variants/baseboard/brya/devicetree.cb

@@ -154,8 +154,12 @@ chip soc/intel/alderlake
 			# Enable WWAN PCIE 6 using clk 5
 			chip soc/intel/common/block/pcie/rtd3
 				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E0)"
+				register "reset_off_delay_ms" = "20"
+				register "reset_delay_ms" = "1000"
 				register "srcclk_pin" = "5"
-				device generic 0 on end
+				register "ext_pm_support" = "ACPI_PCIE_RP_EMIT_ALL"
+				register "skip_on_off_support" = "true"
+				device generic 0 alias rp6_rtd3 on end
 			end
 			register "pch_pcie_rp[PCH_RP(6)]" = "{
 				.clk_src = 5,

src/mainboard/google/brya/variants/brya0/overridetree.cb

@@ -192,6 +192,17 @@ chip soc/intel/alderlake
 		end
 		device ref pcie_rp6 on
 			probe DB_LTE LTE_PCIE
+			chip drivers/wwan/fm
+				register "fcpo_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F21)"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E16)"
+				register "perst_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E0)"
+				register "wake_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A7)"
+				use rp6_rtd3 as rtd3dev
+				device generic 0 on
+					probe DB_LTE LTE_PCIE
+				end
+			end
+
 		end
 		device ref tcss_dma0 on
 			chip drivers/intel/usb4/retimer

src/mainboard/google/brya/variants/brya4es/overridetree.cb

@@ -189,6 +189,16 @@ chip soc/intel/alderlake
 		end
 		device ref pcie_rp6 on
 			probe DB_LTE LTE_PCIE
+			chip drivers/wwan/fm
+				register "fcpo_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F21)"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E16)"
+				register "perst_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E0)"
+				register "wake_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A7)"
+				use rp6_rtd3 as rtd3dev
+				device generic 0 on
+					probe DB_LTE LTE_PCIE
+				end
+			end
 		end
 		device ref tcss_dma0 on
 			chip drivers/intel/usb4/retimer

src/mainboard/google/brya/variants/redrix/overridetree.cb

@@ -167,6 +167,16 @@ chip soc/intel/alderlake
 		end
 		device ref pcie_rp6 on
 			probe DB_LTE LTE_PCIE
+			chip drivers/wwan/fm
+				register "fcpo_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F21)"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E16)"
+				register "perst_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E0)"
+				register "wake_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A7)"
+				use rp6_rtd3 as rtd3dev
+				device generic 0 on
+					probe DB_LTE LTE_PCIE
+				end
+			end
 		end
 		device ref tcss_dma0 on
 			chip drivers/intel/usb4/retimer

src/mainboard/google/brya/variants/redrix4es/overridetree.cb

@@ -153,6 +153,16 @@ chip soc/intel/alderlake
 		end
 		device ref pcie_rp6 on
 			probe DB_LTE LTE_PCIE
+			chip drivers/wwan/fm
+				register "fcpo_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F21)"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E16)"
+				register "perst_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E0)"
+				register "wake_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A7)"
+				use rp6_rtd3 as rtd3dev
+				device generic 0 on
+					probe DB_LTE LTE_PCIE
+				end
+			end
 		end
 		device ref tcss_dma0 on
 			chip drivers/intel/usb4/retimer