gistfile1.txt

From e1369e9d897218d23cbb77533e857c0ce84122c0 Mon Sep 17 00:00:00 2001
From: Rosen Penev <rosenp@gmail.com>
Date: Thu, 31 May 2018 16:25:58 -0700
Subject: [PATCH 1/2] ramips: mt7621: fix pcie related warnings in mt7621.dtsi

List of warnings:

Node /pcie@1e140000/pcie0 node name is not "pci" or "pcie"
Node /pcie@1e140000/pcie0 missing ranges for PCI bridge (or not a bridge)
Node /pcie@1e140000/pcie0 missing bus-range for PCI bridge
Node /pcie@1e140000/pcie1 node name is not "pci" or "pcie"
Node /pcie@1e140000/pcie1 missing ranges for PCI bridge (or not a bridge)
Node /pcie@1e140000/pcie1 missing bus-range for PCI bridge
Node /pcie@1e140000/pcie2 node name is not "pci" or "pcie"
Node /pcie@1e140000/pcie2 missing ranges for PCI bridge (or not a bridge)
Node /pcie@1e140000/pcie2 missing bus-range for PCI bridge
Warning (unit_address_format): Failed prerequisite 'pci_bridge'
Warning (pci_device_reg): Failed prerequisite 'pci_bridge'
Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'

v2: This now also fixes some weird issue where the IRQs for the pcie ports
were offset by 1. The end result is that dmesg errors with

[ 2.176977] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 2.193140] pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 2.209383] pci 0000:00:02.0: bridge configuration invalid ([bus 00-00]), reconfiguring

While the dtsi file is misconfigured, this should hopefully fix issues with
mt76 not working.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 target/linux/ramips/dts/mt7621.dtsi | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/target/linux/ramips/dts/mt7621.dtsi b/target/linux/ramips/dts/mt7621.dtsi
index 5de7fd86cd..1bdced6870 100644
--- a/target/linux/ramips/dts/mt7621.dtsi
+++ b/target/linux/ramips/dts/mt7621.dtsi
@@ -463,30 +463,36 @@
 		clocks = <&clkctrl 24 &clkctrl 25 &clkctrl 26>;
 		clock-names = "pcie0", "pcie1", "pcie2";
 
-		pcie0 {
+		pcie0: pcie@0,0 {
 			reg = <0x0000 0 0 0 0>;
 
 			#address-cells = <3>;
 			#size-cells = <2>;
 
+			range;
+			bus-range = <0x00 0xff>;
 			device_type = "pci";
 		};
 
-		pcie1 {
+		pcie1: pcie@1,0 {
 			reg = <0x0800 0 0 0 0>;
 
 			#address-cells = <3>;
 			#size-cells = <2>;
 
+			range;
+			bus-range = <0x00 0xff>;
 			device_type = "pci";
 		};
 
-		pcie2 {
+		pcie2: pcie@2,0 {
 			reg = <0x1000 0 0 0 0>;
 
 			#address-cells = <3>;
 			#size-cells = <2>;
 
+			range;
+			bus-range = <0x00 0xff>;
 			device_type = "pci";
 		};
 	};
-- 
2.17.0