[v9,3/4] arm64: dts: mediatek: Split PCIe node for MT2712 and MT7622

Commit Message

Chuanjia Liu April 6, 2021, 3:44 a.m. UTC

There are two independent PCIe controllers in MT2712 and MT7622
platform. Each of them should contain an independent MSI domain.

In old dts architecture, MSI domain will be inherited from the root
bridge, and all of the devices will share the same MSI domain.
Hence that, the PCIe devices will not work properly if the irq number
which required is more than 32.

Split the PCIe node for MT2712 and MT7622 platform to comply with
the hardware design and fix MSI issue.

Signed-off-by: Chuanjia Liu <[e-mail]>
Acked-by: Ryder Lee <[e-mail]>

---
 arch/arm64/boot/dts/mediatek/mt2712e.dtsi     |  97 +++++++--------
 .../dts/mediatek/mt7622-bananapi-bpi-r64.dts  |  16 ++-
 arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts  |   6 +-
 arch/arm64/boot/dts/mediatek/mt7622.dtsi      | 112 ++++++++++--------
 4 files changed, 118 insertions(+), 113 deletions(-)

Patch

diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
index db17d0a4ed57..0e20e13b0942 100644
--- a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
@@ -915,64 +915,67 @@ 
 		};
 	};
 
-	pcie: pcie@11700000 {
+	pcie1: pcie@112ff000 {
 		compatible = "mediatek,mt2712-pcie";
 		device_type = "pci";
-		reg = <0 0x11700000 0 0x1000>,
-		      <0 0x112ff000 0 0x1000>;
-		reg-names = "port0", "port1";
+		reg = <0 0x112ff000 0 0x1000>;
+		reg-names = "port1";
+		linux,pci-domain = <1>;
 		#address-cells = <3>;
 		#size-cells = <2>;
-		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
-			 <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
-			 <&pericfg CLK_PERI_PCIE0>,
+		interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "pcie_irq";
+		clocks = <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
 			 <&pericfg CLK_PERI_PCIE1>;
-		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1";
-		phys = <&u3port0 PHY_TYPE_PCIE>, <&u3port1 PHY_TYPE_PCIE>;
-		phy-names = "pcie-phy0", "pcie-phy1";
+		clock-names = "sys_ck1", "ahb_ck1";
+		phys = <&u3port1 PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy1";
 		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
+		ranges = <0x82000000 0 0x11400000  0x0 0x11400000  0 0x300000>;
+		status = "disabled";
 
-		pcie0: pcie@0,0 {
-			device_type = "pci";
-			status = "disabled";
-			reg = <0x0000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+				<0 0 0 2 &pcie_intc1 1>,
+				<0 0 0 3 &pcie_intc1 2>,
+				<0 0 0 4 &pcie_intc1 3>;
+		pcie_intc1: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
-					<0 0 0 2 &pcie_intc0 1>,
-					<0 0 0 3 &pcie_intc0 2>,
-					<0 0 0 4 &pcie_intc0 3>;
-			pcie_intc0: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
+	};
 
-		pcie1: pcie@1,0 {
-			device_type = "pci";
-			status = "disabled";
-			reg = <0x0800 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+	pcie0: pcie@11700000 {
+		compatible = "mediatek,mt2712-pcie";
+		device_type = "pci";
+		reg = <0 0x11700000 0 0x1000>;
+		reg-names = "port0";
+		linux,pci-domain = <0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "pcie_irq";
+		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
+			 <&pericfg CLK_PERI_PCIE0>;
+		clock-names = "sys_ck0", "ahb_ck0";
+		phys = <&u3port0 PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy0";
+		bus-range = <0x00 0xff>;
+		ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
+		status = "disabled";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+				<0 0 0 2 &pcie_intc0 1>,
+				<0 0 0 3 &pcie_intc0 2>,
+				<0 0 0 4 &pcie_intc0 3>;
+		pcie_intc0: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-					<0 0 0 2 &pcie_intc1 1>,
-					<0 0 0 3 &pcie_intc1 2>,
-					<0 0 0 4 &pcie_intc1 3>;
-			pcie_intc1: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
index 2f77dc40b9b8..2b9bf8dd14ec 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
@@ -257,18 +257,16 @@ 
 	};
 };
 
-&pcie {
+&pcie0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&pcie0_pins>, <&pcie1_pins>;
+	pinctrl-0 = <&pcie0_pins>;
 	status = "okay";
+};
 
-	pcie@0,0 {
-		status = "okay";
-	};
-
-	pcie@1,0 {
-		status = "okay";
-	};
+&pcie1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_pins>;
+	status = "okay";
 };
 
 &pio {
diff --git a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
index 08ad0ffb24df..182eba502522 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
@@ -234,14 +234,10 @@ 
 	};
 };
 
-&pcie {
+&pcie0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie0_pins>;
 	status = "okay";
-
-	pcie@0,0 {
-		status = "okay";
-	};
 };
 
 &pio {
diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index 7c6d871538a6..df83d531a0f4 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -781,75 +781,83 @@ 
 		#reset-cells = <1>;
 	};
 
-	pcie: pcie@1a140000 {
+	pciecfg: pciecfg@1a140000 {
+		compatible = "mediatek,generic-pciecfg", "syscon";
+		reg = <0 0x1a140000 0 0x1000>;
+	};
+
+	pcie0: pcie@1a143000 {
 		compatible = "mediatek,mt7622-pcie";
 		device_type = "pci";
-		reg = <0 0x1a140000 0 0x1000>,
-		      <0 0x1a143000 0 0x1000>,
-		      <0 0x1a145000 0 0x1000>;
-		reg-names = "subsys", "port0", "port1";
+		reg = <0 0x1a143000 0 0x1000>;
+		reg-names = "port0";
+		linux,pci-domain = <0>;
 		#address-cells = <3>;
 		#size-cells = <2>;
-		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>,
-			     <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "pcie_irq";
 		clocks = <&pciesys CLK_PCIE_P0_MAC_EN>,
-			 <&pciesys CLK_PCIE_P1_MAC_EN>,
-			 <&pciesys CLK_PCIE_P0_AHB_EN>,
 			 <&pciesys CLK_PCIE_P0_AHB_EN>,
 			 <&pciesys CLK_PCIE_P0_AUX_EN>,
-			 <&pciesys CLK_PCIE_P1_AUX_EN>,
 			 <&pciesys CLK_PCIE_P0_AXI_EN>,
-			 <&pciesys CLK_PCIE_P1_AXI_EN>,
 			 <&pciesys CLK_PCIE_P0_OBFF_EN>,
-			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
-			 <&pciesys CLK_PCIE_P0_PIPE_EN>,
-			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
-		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1",
-			      "aux_ck0", "aux_ck1", "axi_ck0", "axi_ck1",
-			      "obff_ck0", "obff_ck1", "pipe_ck0", "pipe_ck1";
+			 <&pciesys CLK_PCIE_P0_PIPE_EN>;
+		clock-names = "sys_ck0", "ahb_ck0", "aux_ck0",
+			      "axi_ck0", "obff_ck0", "pipe_ck0";
+
 		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
 		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
+		ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x8000000>;
 		status = "disabled";
 
-		pcie0: pcie@0,0 {
-			reg = <0x0000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+				<0 0 0 2 &pcie_intc0 1>,
+				<0 0 0 3 &pcie_intc0 2>,
+				<0 0 0 4 &pcie_intc0 3>;
+		pcie_intc0: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			status = "disabled";
-
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
-					<0 0 0 2 &pcie_intc0 1>,
-					<0 0 0 3 &pcie_intc0 2>,
-					<0 0 0 4 &pcie_intc0 3>;
-			pcie_intc0: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
+	};
 
-		pcie1: pcie@1,0 {
-			reg = <0x0800 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+	pcie1: pcie@1a145000 {
+		compatible = "mediatek,mt7622-pcie";
+		device_type = "pci";
+		reg = <0 0x1a145000 0 0x1000>;
+		reg-names = "port1";
+		linux,pci-domain = <1>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "pcie_irq";
+		clocks = <&pciesys CLK_PCIE_P1_MAC_EN>,
+			 /* designer has connect RC1 with p0_ahb clock */
+			 <&pciesys CLK_PCIE_P0_AHB_EN>,
+			 <&pciesys CLK_PCIE_P1_AUX_EN>,
+			 <&pciesys CLK_PCIE_P1_AXI_EN>,
+			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
+			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
+		clock-names = "sys_ck1", "ahb_ck1", "aux_ck1",
+			      "axi_ck1", "obff_ck1", "pipe_ck1";
+
+		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+		bus-range = <0x00 0xff>;
+		ranges = <0x82000000 0 0x28000000 0x0 0x28000000 0 0x8000000>;
+		status = "disabled";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+				<0 0 0 2 &pcie_intc1 1>,
+				<0 0 0 3 &pcie_intc1 2>,
+				<0 0 0 4 &pcie_intc1 3>;
+		pcie_intc1: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			status = "disabled";
-
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-					<0 0 0 2 &pcie_intc1 1>,
-					<0 0 0 3 &pcie_intc1 2>,
-					<0 0 0 4 &pcie_intc1 3>;
-			pcie_intc1: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
 	};