boards: raspberrypi: add PCIe support for Raspberry Pi 5

Enable two PCIe controllers for Raspberry Pi 5.

Signed-off-by: Junho Lee <[email protected]>

Author: Lahyllas

boards/raspberrypi/rpi_5/doc/index.rst

@@ -49,6 +49,9 @@ The Raspberry Pi 5 board configuration supports the following hardware features:
    * - UART
      - :kconfig:option:`CONFIG_SERIAL`
      - :dtcompatible:`arm,pl011`
+   * - PCIE
+     - :kconfig:option:`CONFIG_PCIE`
+     - :dtcompatible:`brcm,brcmstb-pcie`
 
 Not all hardware features are supported yet. See `Raspberry Pi hardware`_ for the complete list of hardware features.
 

boards/raspberrypi/rpi_5/rpi_5.dts

@@ -23,6 +23,7 @@
 		zephyr,sram = &sram0;
 		zephyr,console = &uart10;
 		zephyr,shell-uart = &uart10;
+		zephyr,pcie-controller = &pcie1;
 	};
 
 	leds {

boards/raspberrypi/rpi_5/rpi_5_defconfig

@@ -8,3 +8,6 @@ CONFIG_TIMER_READS_ITS_FREQUENCY_AT_RUNTIME=y
 CONFIG_SERIAL=y
 CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
+
+CONFIG_PCIE=y
+CONFIG_PCIE_CONTROLLER=y

dts/arm64/broadcom/bcm2712.dtsi

@@ -92,6 +92,20 @@
 		#address-cells = <2>;
 		#size-cells = <1>;
 
+		pcie1: pcie@1000110000 {
+			compatible = "brcm,brcmstb-pcie";
+			reg = <0x10 0x110000 0x9310>,
+			      <0x0 0x0 0x8000000>,
+			      <0x0 0x8000000 0x10000>,
+			      <0x0 0x0 0x10>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			status = "okay";
+			ranges = <0x02000000 0x0 0x0 0x1b 0x0 0x00 0xfffffffc>,
+				 <0x43000000 0x4 0x0 0x18 0x0 0x03 0x00000000>,
+				 <0x03000000 0x0 0x0 0x10 0x0 0x10 0x00000000>;
+		};
+
 		pcie2: pcie@1000120000 {
 			compatible = "brcm,brcmstb-pcie";
 			reg = <0x10 0x120000 0x9310>,