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Message-Id: <20250503-wmt-soc-driver-v2-3-8c774ad84d47@gmail.com>
Date: Sat, 03 May 2025 02:04:25 +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 v2 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 09f5ed3e6821b72fc440f9de3df0ad484d2c4e17..2ba021585d4889f29777a12473964c29f999f3a0 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>;
};
+ chipid@...20000 {
+ compatible = "via,vt8500-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 c81810b967bb349419a5ac7db4e788faec3695fb..99c064c916b2279797f71261ca9306e9dcd4bbd8 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>;
};
+ chipid@...20000 {
+ compatible = "via,vt8500-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 555008120a3e315591d2ca49a39d354925d570fd..0d6c7bd87f7dcce0eef056d04c38ab1de5d52639 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>;
};
+ chipid@...20000 {
+ compatible = "via,vt8500-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 309f6e5129fb817d343cd58a8d90340afd8d6eb9..0158c0ba5dd110957eac38775d3bf3ebd2ab4154 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>;
};
+ chipid@...20000 {
+ compatible = "via,vt8500-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 3f4a514d65e2ac7658b73cc9c4f3cae1407265bc..c4bfb4d30aad0358b39cbf30edf0c63e32167bbd 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>;
};
+ chipid@...20000 {
+ compatible = "via,vt8500-scc-id";
+ reg = <0xd8120000 0x4>;
+ };
+
pmc@...30000 {
compatible = "via,vt8500-pmc";
reg = <0xd8130000 0x1000>;
--
2.49.0
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