linux-kernel - [PATCH 4/5] MIPS: DTS: Loongson64: Add PCI Controller Node

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Message-ID: <20200330114239.1112759-5-jiaxun.yang@flygoat.com>
Date:   Mon, 30 Mar 2020 19:42:29 +0800
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     linux-mips@...r.kernel.org
Cc:     Jiaxun Yang <jiaxun.yang@...goat.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Huacai Chen <chenhc@...ote.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Andrew Murray <amurray@...goodpenguin.co.uk>,
        Paul Burton <paulburton@...nel.org>, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] MIPS: DTS: Loongson64: Add PCI Controller Node

Add PCI Host controller node for Loongson64 with RS780E PCH dts.
Note that PCI interrupts are probed via legacy way, as different
machine have different interrupt arrangement, we can't cover all
of them in dt.

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
 arch/mips/boot/dts/loongson/rs780e-pch.dtsi | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/mips/boot/dts/loongson/rs780e-pch.dtsi b/arch/mips/boot/dts/loongson/rs780e-pch.dtsi
index 45c54d555fa4..f09599a4b9d7 100644
--- a/arch/mips/boot/dts/loongson/rs780e-pch.dtsi
+++ b/arch/mips/boot/dts/loongson/rs780e-pch.dtsi
@@ -5,10 +5,25 @@ bus@...00000 {
 		compatible = "simple-bus";
 		#address-cells = <2>;
 		#size-cells = <2>;
-		ranges = <0 0x10000000 0 0x10000000 0 0x10000000
+		ranges = <0 0x00000000 0 0x00000000 0 0x00010000 /* ioports */
+				0 0x10000000 0 0x10000000 0 0x10000000
 				0 0x40000000 0 0x40000000 0 0x40000000
 				0xfd 0xfe000000 0xfd 0xfe000000  0 0x2000000 /* PCI Config Space */>;
 
+		pci@...00000 {
+			compatible = "loongson,rs780e-pci";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <0x1>;
+
+			reg = <0 0x1a000000 0 0x02000000>;
+
+			ranges = <0x01000000 0x0 0x00004000 0x0 0x00004000  0x0 0x00004000>,
+				<0x02000000 0x0 0x40000000 0x0 0x40000000  0x0 0x40000000>;
+
+		};
+
 		isa {
 			compatible = "isa";
 			#address-cells = <2>;
-- 
2.26.0.rc2