linux-kernel - [PATCH 05/10] MIPS: dts: loongson: Add ISA node

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Message-Id: <20240614-ls3k-mips-v1-5-7614340ace7d@flygoat.com>
Date: Fri, 14 Jun 2024 16:40:13 +0100
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Qing Zhang <zhangqing@...ngson.cn>, Binbin Zhou <zhoubinbin@...ngson.cn>, 
 Huacai Chen <chenhuacai@...nel.org>
Cc: devicetree@...r.kernel.org, linux-mips@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Jiaxun Yang <jiaxun.yang@...goat.com>, 
 stable@...r.kernel.org
Subject: [PATCH 05/10] MIPS: dts: loongson: Add ISA node

ISA node is required by Loongson64 platforms to initialize
PIO support.

Kernel will hang at boot without ISA node.

Cc: stable@...r.kernel.org
Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
index b2f66f6bb2fe..cc7747c5f21f 100644
--- a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
+++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
@@ -44,6 +44,13 @@ package0: bus@...00000 {
 			0 0x40000000 0 0x40000000 0 0x40000000
 			0xfe 0x00000000 0xfe 0x00000000 0 0x40000000>;
 
+		isa@...00000 {
+			compatible = "isa";
+			#size-cells = <1>;
+			#address-cells = <2>;
+			ranges = <1 0x0 0x0 0x18000000 0x4000>;
+		};
+
 		pm: reset-controller@...07000 {
 			compatible = "loongson,ls2k-pm";
 			reg = <0 0x1fe07000 0 0x422>;

-- 
2.43.0