linux-kernel - [PATCH v2 4/5] MIPS: DTS: Loongson64: Add PCI Controller Node

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Message-ID: <20200401030658.1174045-5-jiaxun.yang@flygoat.com>
Date:   Wed,  1 Apr 2020 11:06:48 +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 v2 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>
--
v2: Clean-up
---
 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..8766f97306c6 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>;
+
+			reg = <0 0x1a000000 0 0x02000000>;
+
+			ranges = <0x01000000 0 0x00004000 0 0x00004000 0 0x00004000>,
+				 <0x02000000 0 0x40000000 0 0x40000000 0 0x40000000>;
+
+			bus-range = <0x00 0xff>;
+		};
+
 		isa {
 			compatible = "isa";
 			#address-cells = <2>;
-- 
2.26.0.rc2