[iMX8] add CONFIG for pci-imx6.c driver used by 8mq boards, update 8mq pcie settings

arch/arm64/boot/dts/seco/include/seco-imx8mq.dtsi

@@ -1500,23 +1500,28 @@
 			          0x82000000 0 0x18000000 0x18000000 0 0x07f00000>; /* non-prefetchable memory */
 			num-lanes = <1>;
 			num-viewport = <4>;
-			interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
-					<GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>; /* eDMA */
-			interrupt-names = "msi", "dma";
+			interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "msi";
 			#interrupt-cells = <1>;
 			interrupt-map-mask = <0 0 0 0x7>;
 			interrupt-map = <0 0 0 1 &gic GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
 			                <0 0 0 2 &gic GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
 			                <0 0 0 3 &gic GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
 			                <0 0 0 4 &gic GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
-			linux,pci-domain = <0>;
 			fsl,max-link-speed = <2>;
 			power-domains = <&pgc_pcie>;
 			resets = <&src IMX8MQ_RESET_PCIEPHY>,
 			         <&src IMX8MQ_RESET_PCIE_CTRL_APPS_EN>,
-				 <&src IMX8MQ_RESET_PCIE_CTRL_APPS_CLK_REQ>,
-				 <&src IMX8MQ_RESET_PCIE_CTRL_APPS_TURNOFF>;
-			reset-names = "pciephy", "apps", "clkreq", "turnoff";
+			         <&src IMX8MQ_RESET_PCIE_CTRL_APPS_TURNOFF>;
+			reset-names = "pciephy", "apps", "turnoff";
+			assigned-clocks = <&clk IMX8MQ_CLK_PCIE1_CTRL>,
+			                  <&clk IMX8MQ_CLK_PCIE1_PHY>,
+			                  <&clk IMX8MQ_CLK_PCIE1_AUX>;
+			assigned-clock-parents = <&clk IMX8MQ_SYS2_PLL_250M>,
+			                         <&clk IMX8MQ_SYS2_PLL_100M>,
+			                         <&clk IMX8MQ_SYS1_PLL_80M>;
+			assigned-clock-rates = <250000000>, <100000000>,
+			                       <10000000>;
 			status = "disabled";
 		};
 
@@ -1532,42 +1537,28 @@
 				   0x82000000 0 0x20000000 0x20000000 0 0x07f00000>; /* non-prefetchable memory */
 			num-lanes = <1>;
 			num-viewport = <4>;
-			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
-					<GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>; /* eDMA */
-			interrupt-names = "msi", "dma";
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "msi";
 			#interrupt-cells = <1>;
 			interrupt-map-mask = <0 0 0 0x7>;
 			interrupt-map = <0 0 0 1 &gic GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
 					<0 0 0 2 &gic GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
 					<0 0 0 3 &gic GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
 					<0 0 0 4 &gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
-			linux,pci-domain = <1>;
 			fsl,max-link-speed = <2>;
 			power-domains = <&pgc_pcie>;
 			resets = <&src IMX8MQ_RESET_PCIEPHY2>,
 			         <&src IMX8MQ_RESET_PCIE2_CTRL_APPS_EN>,
-				 <&src IMX8MQ_RESET_PCIE2_CTRL_APPS_CLK_REQ>,
-				 <&src IMX8MQ_RESET_PCIE2_CTRL_APPS_TURNOFF>;
-			reset-names = "pciephy", "apps", "clkreq", "turnoff";
-			status = "disabled";
-		};
-
-		pcie1_ep: pcie_ep@33c00000 {
-			compatible = "fsl,imx8mq-pcie-ep";
-			reg = <0x33c00000 0x000400000>,
-			      <0x20000000 0x08000000>;
-			reg-names = "regs", "addr_space";
-			num-lanes = <1>;
-			interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>; /* eDMA */
-			interrupt-names = "dma";
-			fsl,max-link-speed = <2>;
-			power-domains = <&pgc_pcie>;
-			resets = <&src IMX8MQ_RESET_PCIEPHY2>,
-				 <&src IMX8MQ_RESET_PCIE2_CTRL_APPS_EN>,
-				 <&src IMX8MQ_RESET_PCIE2_CTRL_APPS_TURNOFF>;
+			         <&src IMX8MQ_RESET_PCIE2_CTRL_APPS_TURNOFF>;
 			reset-names = "pciephy", "apps", "turnoff";
-			num-ib-windows = <4>;
-			num-ob-windows = <4>;
+			assigned-clocks = <&clk IMX8MQ_CLK_PCIE2_CTRL>,
+			                  <&clk IMX8MQ_CLK_PCIE2_PHY>,
+			                  <&clk IMX8MQ_CLK_PCIE2_AUX>;
+			assigned-clock-parents = <&clk IMX8MQ_SYS2_PLL_250M>,
+			                         <&clk IMX8MQ_SYS2_PLL_100M>,
+			                         <&clk IMX8MQ_SYS1_PLL_80M>;
+			assigned-clock-rates = <250000000>, <100000000>,
+			                       <10000000>;
 			status = "disabled";
 		};
 

arch/arm64/configs/seco_imx8_linux_defconfig

@@ -191,6 +191,7 @@ CONFIG_PCIE_ALTERA=y
 CONFIG_PCIE_ALTERA_MSI=y
 CONFIG_PCI_HOST_THUNDER_PEM=y
 CONFIG_PCI_HOST_THUNDER_ECAM=y
+CONFIG_PCI_IMX6=y
 CONFIG_PCI_IMX6_HOST=y
 CONFIG_PCI_IMX6_EP=y
 CONFIG_PCI_LAYERSCAPE=y