[PATCH v7 3/7] ARM: dts: aspeed-g6: Add PCIe RC and PCIe PHY node

Jacky Chou
2025-12-16T01:50:15Z

The AST2600 has one PCIe RC and add the PCIe PHY for RC.
And add pinctrl support for PCIe RC PERST#.

Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>
---
arch/arm/boot/dts/aspeed/aspeed-g6-pinctrl.dtsi | 5 +++
arch/arm/boot/dts/aspeed/aspeed-g6.dtsi | 51 +++++++++++++++++++++++++
2 files changed, 56 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-g6-pinctrl.dtsi b/arch/arm/boot/dts/aspeed/aspeed-g6-pinctrl.dtsi
index e87c4b58994a..d46f2047135c 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-g6-pinctrl.dtsi
+++ b/arch/arm/boot/dts/aspeed/aspeed-g6-pinctrl.dtsi
@@ -2,6 +2,11 @@
// Copyright 2019 IBM Corp.

&pinctrl {
+ pinctrl_pcierc1_default: pcierc1-default {
+ function = "PCIERC1";
+ groups = "PCIERC1";
+ };
+
pinctrl_adc0_default: adc0_default {
function = "ADC0";
groups = "ADC0";
diff --git a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
index f8662c8ac089..a525c63dac3c 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
@@ -379,6 +379,57 @@ rng: hwrng@1e6e2524 {
quality = <100>;
};

+ pcie_phy1: phy@1e6ed200 {
+ compatible = "aspeed,ast2600-pcie-phy";
+ reg = <0x1e6ed200 0x100>;
+ #phy-cells = <0>;
+ };
+
+ pcie0: pcie@1e770000 {
+ compatible = "aspeed,ast2600-pcie";
+ device_type = "pci";
+ reg = <0x1e770000 0x100>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
+ bus-range = <0x00 0xff>;
+
+ ranges = <0x01000000 0x0 0x00018000 0x00018000 0x0 0x00008000
+ 0x02000000 0x0 0x60000000 0x60000000 0x0 0x20000000>;
+
+ status = "disabled";
+
+ resets = <&syscon ASPEED_RESET_H2X>;
+ reset-names = "h2x";
+
+ #interrupt-cells = <1>;
+ msi-controller;
+
+ aspeed,ahbc = <&ahbc>;
+
+ interrupt-controller;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie0 0>,
+ <0 0 0 2 &pcie0 1>,
+ <0 0 0 3 &pcie0 2>,
+ <0 0 0 4 &pcie0 3>;
+
+ pcie@8,0 {
+ compatible = "pciclass,0604";
+ reg = <0x00004000 0 0 0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ resets = <&syscon ASPEED_RESET_PCIE_RC_O>;
+ reset-names = "perst";
+ clocks = <&syscon ASPEED_CLK_GATE_BCLK>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcierc1_default>;
+ phys = <&pcie_phy1>;
+ ranges;
+ };
+ };
+
gfx: display@1e6e6000 {
compatible = "aspeed,ast2600-gfx", "syscon";
reg = <0x1e6e6000 0x1000>;

--
2.34.1