From: Christian Lamparter <chunkeey@gmail.com>
Date: Wed, 12 Aug 2020 16:26:43 +0000 (+0200)
Subject: apm821xx: MR24: enumerate PCIe in device-tree
X-Git-Tag: v21.02.0-rc1~1758
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=9153955095f01a7ac5f2659a671f0229cbad3507;p=openwrt%2Fopenwrt.git

apm821xx: MR24: enumerate PCIe in device-tree

This patch adds the pcie-switch and bridge configuration for
the Meraki MR24.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
---

diff --git a/target/linux/apm821xx/dts/meraki-mr24.dts b/target/linux/apm821xx/dts/meraki-mr24.dts
index 8fdef7c171..97a69e71d1 100644
--- a/target/linux/apm821xx/dts/meraki-mr24.dts
+++ b/target/linux/apm821xx/dts/meraki-mr24.dts
@@ -182,6 +182,57 @@
 
 &PCIE0 {
 	status = "okay";
+	/*
+	 * relevant lspci topology:
+	 *
+	 *	-+-[0000:40]---00.0-[41-7f]----00.0-[42-45]--+-02.0-[43]----00.0
+	 *	                                             +-03.0-[44]----00.0
+	 *
+	 */
+
+	bridge@64,0 {
+		reg = <0x00400000 0 0 0 0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+
+		bridge@65,0 {
+			/* IDT PES3T3 PCI Express Switch */
+			compatible = "pci111d,8039";
+			reg = <0x00410000 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			bridge@66,2 {
+				compatible = "pci111d,8039";
+				reg = <0x00421000 0 0 0 0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				ranges;
+
+				wifi0: wifi@67,0 {
+					/* Atheros AR9380 2.4GHz */
+					compatible = "pci168c,0030";
+					reg = <0x00430000 0 0 0 0>;
+				};
+			};
+
+			bridge@66,3 {
+				compatible = "pci111d,8039";
+				reg = <0x00421800 0 0 0 0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				ranges;
+
+				wifi1: wifi@68,0 {
+					/* Atheros AR9380 5GHz */
+					compatible = "pci168c,0030";
+					reg = <0x00440000 0 0 0 0>;
+				};
+			};
+		};
+	};
 };
 
 &MSI {