arm64: dts: imx8mm: Add the pcie support

Add the PCIe support on i.MX8MM platforms.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Marek Vasut <marex@denx.de> # Pick from Linux 854a4766ac12 ("arm64: dts: imx8mm: Add the pcie support")

diff --git a/arch/arm/dts/imx8mm.dtsi b/arch/arm/dts/imx8mm.dtsi
index 63cab12..724f6dd 100644 (file)
--- a/arch/arm/dts/imx8mm.dtsi
+++ b/arch/arm/dts/imx8mm.dtsi
@@ -510,7 +510,7 @@
                        };
 
                        gpr: iomuxc-gpr@30340000 {
-                               compatible = "fsl,imx8mm-iomuxc-gpr", "syscon";
+                               compatible = "fsl,imx8mm-iomuxc-gpr", "fsl,imx6q-iomuxc-gpr", "syscon";
                                reg = <0x30340000 0x10000>;
                        };
 
@@ -1085,6 +1085,37 @@
                        status = "disabled";
                };
 
+               pcie0: pcie@33800000 {
+                       compatible = "fsl,imx8mm-pcie";
+                       reg = <0x33800000 0x400000>, <0x1ff00000 0x80000>;
+                       reg-names = "dbi", "config";
+                       #address-cells = <3>;
+                       #size-cells = <2>;
+                       device_type = "pci";
+                       bus-range = <0x00 0xff>;
+                       ranges =  <0x81000000 0 0x00000000 0x1ff80000 0 0x00010000 /* downstream I/O 64KB */
+                                  0x82000000 0 0x18000000 0x18000000 0 0x07f00000>; /* non-prefetchable memory */
+                       num-lanes = <1>;
+                       num-viewport = <4>;
+                       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>;
+                       fsl,max-link-speed = <2>;
+                       linux,pci-domain = <0>;
+                       power-domains = <&pgc_pcie>;
+                       resets = <&src IMX8MQ_RESET_PCIE_CTRL_APPS_EN>,
+                                <&src IMX8MQ_RESET_PCIE_CTRL_APPS_TURNOFF>;
+                       reset-names = "apps", "turnoff";
+                       phys = <&pcie_phy>;
+                       phy-names = "pcie-phy";
+                       status = "disabled";
+               };
+
                gic: interrupt-controller@38800000 {
                        compatible = "arm,gic-v3";
                        reg = <0x38800000 0x10000>, /* GIC Dist */