linux-kernel - [PATCH v4 2/9] arm64: dts: mediatek: mt8188: Add PCIe nodes

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Message-ID: <20241014111053.2294519-3-fshao@chromium.org>
Date: Mon, 14 Oct 2024 19:09:24 +0800
From: Fei Shao <fshao@...omium.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Matthias Brugger <matthias.bgg@...il.com>
Cc: Fei Shao <fshao@...omium.org>,
	Macpaul Lin <macpaul.lin@...iatek.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Rob Herring <robh@...nel.org>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v4 2/9] arm64: dts: mediatek: mt8188: Add PCIe nodes

Add PCIe node and the associated PHY node.
Individual board device tree should enable the nodes as needed.

Reviewed-by: Macpaul Lin <macpaul.lin@...iatek.com>
Signed-off-by: Fei Shao <fshao@...omium.org>
---

(no changes since v2)

Changes in v2:
- add linux,pci-domain to PCIe node
- add power domain to PCIe PHY node

 arch/arm64/boot/dts/mediatek/mt8188.dtsi | 64 ++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8188.dtsi b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
index 10195a4e4e9d..23101d316c4e 100644
--- a/arch/arm64/boot/dts/mediatek/mt8188.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
@@ -1763,6 +1763,54 @@ xhci0: usb@...b0000 {
 			status = "disabled";
 		};
 
+		pcie: pcie@...f0000 {
+			compatible = "mediatek,mt8188-pcie", "mediatek,mt8192-pcie";
+			reg = <0 0x112f0000 0 0x2000>;
+			reg-names = "pcie-mac";
+			ranges = <0x82000000 0 0x20000000 0 0x20000000 0 0x4000000>;
+			bus-range = <0 0xff>;
+			device_type = "pci";
+			linux,pci-domain = <0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			clocks = <&infracfg_ao CLK_INFRA_AO_PCIE_PL_P_250M_P0>,
+				 <&infracfg_ao CLK_INFRA_AO_PCIE_TL_26M>,
+				 <&infracfg_ao CLK_INFRA_AO_PCIE_TL_96M>,
+				 <&infracfg_ao CLK_INFRA_AO_PCIE_TL_32K>,
+				 <&infracfg_ao CLK_INFRA_AO_PCIE_PERI_26M>,
+				 <&pericfg_ao CLK_PERI_AO_PCIE_P0_FMEM>;
+			clock-names = "pl_250m", "tl_26m", "tl_96m", "tl_32k",
+				      "peri_26m", "peri_mem";
+
+			#interrupt-cells = <1>;
+			interrupts = <GIC_SPI 791 IRQ_TYPE_LEVEL_HIGH 0>;
+			interrupt-map = <0 0 0 1 &pcie_intc 0>,
+					<0 0 0 2 &pcie_intc 1>,
+					<0 0 0 3 &pcie_intc 2>,
+					<0 0 0 4 &pcie_intc 3>;
+			interrupt-map-mask = <0 0 0 7>;
+
+			iommu-map = <0 &infra_iommu IFR_IOMMU_PORT_PCIE_0 0xffff>;
+			iommu-map-mask = <0>;
+
+			phys = <&pcieport PHY_TYPE_PCIE>;
+			phy-names = "pcie-phy";
+
+			power-domains = <&spm MT8188_POWER_DOMAIN_PEXTP_MAC_P0>;
+
+			resets = <&watchdog MT8188_TOPRGU_PCIE_SW_RST>;
+			reset-names = "mac";
+
+			status = "disabled";
+
+			pcie_intc: interrupt-controller {
+				#address-cells = <0>;
+				#interrupt-cells = <1>;
+				interrupt-controller;
+			};
+		};
+
 		nor_flash: spi@...2c000 {
 			compatible = "mediatek,mt8188-nor", "mediatek,mt8186-nor";
 			reg = <0 0x1132c000 0 0x1000>;
@@ -1775,6 +1823,22 @@ nor_flash: spi@...2c000 {
 			status = "disabled";
 		};
 
+		pciephy: t-phy@...20700 {
+			compatible = "mediatek,mt8188-tphy", "mediatek,generic-tphy-v3";
+			ranges = <0 0 0x11c20700 0x700>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			power-domains = <&spm MT8188_POWER_DOMAIN_PEXTP_PHY_TOP>;
+			status = "disabled";
+
+			pcieport: pcie-phy@0 {
+				reg = <0 0x700>;
+				clocks = <&topckgen CLK_TOP_CFGREG_F_PCIE_PHY_REF>;
+				clock-names = "ref";
+				#phy-cells = <1>;
+			};
+		};
+
 		i2c1: i2c@...00000 {
 			compatible = "mediatek,mt8188-i2c";
 			reg = <0 0x11e00000 0 0x1000>,
-- 
2.47.0.rc1.288.g06298d1525-goog