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Message-Id: <20250423-wmt-soc-driver-v1-3-bd8bf32521c2@gmail.com>
Date: Wed, 23 Apr 2025 23:18:33 +0400
From: Alexey Charkov <alchark@...il.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Krzysztof Kozlowski <krzk@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, Alexey Charkov <alchark@...il.com>
Subject: [PATCH 3/3] ARM: dts: vt8500: add DT nodes for the system config
ID register
Every VIA/WonderMedia SoC has a 32-bit chip ID register at the
MMIO address 0xd8120000. Add respective device tree nodes to let
the system code access it at runtime for the selection of appropriate
hardware quirks where needed.
Signed-off-by: Alexey Charkov <alchark@...il.com>
---
arch/arm/boot/dts/vt8500/vt8500.dtsi | 5 +++++
arch/arm/boot/dts/vt8500/wm8505.dtsi | 5 +++++
arch/arm/boot/dts/vt8500/wm8650.dtsi | 5 +++++
arch/arm/boot/dts/vt8500/wm8750.dtsi | 5 +++++
arch/arm/boot/dts/vt8500/wm8850.dtsi | 5 +++++
5 files changed, 25 insertions(+)
diff --git a/arch/arm/boot/dts/vt8500/vt8500.dtsi b/arch/arm/boot/dts/vt8500/vt8500.dtsi
index f23cb5ee11ae63222276c8ac178c52a6a3872c0c..1f81f0cbdb7e2c2378b62e40afd3675303bf8cc1 100644
--- a/arch/arm/boot/dts/vt8500/vt8500.dtsi
+++ b/arch/arm/boot/dts/vt8500/vt8500.dtsi
@@ -55,6 +55,11 @@ pinctrl: pinctrl@...10000 {
#gpio-cells = <2>;
};
+ system-configuration@...20000 {
+ compatible = "via,scc-id";
+ reg = <0xd8120000 0x4>;
+ };
+
pmc@...30000 {
compatible = "via,vt8500-pmc";
reg = <0xd8130000 0x1000>;
diff --git a/arch/arm/boot/dts/vt8500/wm8505.dtsi b/arch/arm/boot/dts/vt8500/wm8505.dtsi
index d9e1280372c55c5080d242014c2392eaf4335d11..adc239a9999995c077dda0e2ef3a76066264bb8c 100644
--- a/arch/arm/boot/dts/vt8500/wm8505.dtsi
+++ b/arch/arm/boot/dts/vt8500/wm8505.dtsi
@@ -66,6 +66,11 @@ pinctrl: pinctrl@...10000 {
#gpio-cells = <2>;
};
+ system-configuration@...20000 {
+ compatible = "via,scc-id";
+ reg = <0xd8120000 0x4>;
+ };
+
pmc@...30000 {
compatible = "via,vt8500-pmc";
reg = <0xd8130000 0x1000>;
diff --git a/arch/arm/boot/dts/vt8500/wm8650.dtsi b/arch/arm/boot/dts/vt8500/wm8650.dtsi
index 35d12d77efc0f91e3735b98b8ec1f25a62c9c22e..2139d183a92b18583884f9329ad286e9da98c066 100644
--- a/arch/arm/boot/dts/vt8500/wm8650.dtsi
+++ b/arch/arm/boot/dts/vt8500/wm8650.dtsi
@@ -62,6 +62,11 @@ pinctrl: pinctrl@...10000 {
#gpio-cells = <2>;
};
+ system-configuration@...20000 {
+ compatible = "via,scc-id";
+ reg = <0xd8120000 0x4>;
+ };
+
pmc@...30000 {
compatible = "via,vt8500-pmc";
reg = <0xd8130000 0x1000>;
diff --git a/arch/arm/boot/dts/vt8500/wm8750.dtsi b/arch/arm/boot/dts/vt8500/wm8750.dtsi
index b292f85d4e69b43d6eeb4525113265722a7b90af..5b2d3697418dbe668fa3b8586b0c98f2efa6bfb7 100644
--- a/arch/arm/boot/dts/vt8500/wm8750.dtsi
+++ b/arch/arm/boot/dts/vt8500/wm8750.dtsi
@@ -68,6 +68,11 @@ pinctrl: pinctrl@...10000 {
#gpio-cells = <2>;
};
+ system-configuration@...20000 {
+ compatible = "via,scc-id";
+ reg = <0xd8120000 0x4>;
+ };
+
pmc@...30000 {
compatible = "via,vt8500-pmc";
reg = <0xd8130000 0x1000>;
diff --git a/arch/arm/boot/dts/vt8500/wm8850.dtsi b/arch/arm/boot/dts/vt8500/wm8850.dtsi
index c61717ebb4f1f3523733241c4df11f741ad4ae14..2c4922933875c9c31ea7c979aa8cbcc3d9a934a5 100644
--- a/arch/arm/boot/dts/vt8500/wm8850.dtsi
+++ b/arch/arm/boot/dts/vt8500/wm8850.dtsi
@@ -65,6 +65,11 @@ pinctrl: pinctrl@...10000 {
#gpio-cells = <2>;
};
+ system-configuration@...20000 {
+ compatible = "via,scc-id";
+ reg = <0xd8120000 0x4>;
+ };
+
pmc@...30000 {
compatible = "via,vt8500-pmc";
reg = <0xd8130000 0x1000>;
--
2.49.0
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