* [PATCH 2/4] dt-bindings: watchdog: add new binding for meson secure watchdog
[not found] <1570874721-36077-1-git-send-email-xingyu.chen@amlogic.com>
@ 2019-10-12 10:05 ` Xingyu Chen
2019-10-12 10:05 ` [PATCH 4/4] arm64: dts: a1: add secure watchdog controller Xingyu Chen
1 sibling, 0 replies; 2+ messages in thread
From: Xingyu Chen @ 2019-10-12 10:05 UTC (permalink / raw)
To: Wim Van Sebroeck, Guenter Roeck, Kevin Hilman, Neil Armstrong
Cc: Xingyu Chen, Rob Herring, Jerome Brunet, Qianggui Song,
Jianxin Pan, Jian Hu, linux-watchdog, linux-amlogic,
linux-arm-kernel, linux-kernel, devicetree
The binding targets the Meson-A/C series compatible SoCs, in which the
watchdog registers are in secure world.
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
---
.../bindings/watchdog/amlogic,meson-sec-wdt.yaml | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
diff --git a/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml b/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
new file mode 100644
index 00000000..0bbc807
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+# Copyright (c) 2019 Amlogic, Inc
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/amlogic,meson-sec-wdt.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic Meson Secure Watchdog Timer
+
+maintainers:
+ - Xingyu Chen <xingyu.chen@amlogic.com>
+
+description: |+
+ Secure Watchdog Timer used in Meson-A/C series Compatible SoCs
+
+properties:
+ compatible:
+ enum:
+ - amlogic,meson-sec-wdt
+
+ secure-monitor:
+ description: phandle to the secure-monitor node
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+ - compatible
+ - secure-monitor
+
+examples:
+ - |
+ watchdog {
+ compatible = "amlogic,meson-sec-wdt";
+ secure-monitor = <&sm>;
+ };
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread* [PATCH 4/4] arm64: dts: a1: add secure watchdog controller
[not found] <1570874721-36077-1-git-send-email-xingyu.chen@amlogic.com>
2019-10-12 10:05 ` [PATCH 2/4] dt-bindings: watchdog: add new binding for meson secure watchdog Xingyu Chen
@ 2019-10-12 10:05 ` Xingyu Chen
1 sibling, 0 replies; 2+ messages in thread
From: Xingyu Chen @ 2019-10-12 10:05 UTC (permalink / raw)
To: Wim Van Sebroeck, Guenter Roeck, Kevin Hilman, Neil Armstrong
Cc: Xingyu Chen, Rob Herring, Jerome Brunet, Qianggui Song,
Jianxin Pan, Jian Hu, linux-watchdog, linux-amlogic,
linux-arm-kernel, linux-kernel, devicetree
Enable secure watchdog controller for Meson-A1 SoC
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
---
arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
index 7210ad0..047c323 100644
--- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
@@ -93,6 +93,12 @@
clock-names = "xtal", "pclk", "baud";
status = "disabled";
};
+
+ watchdog {
+ compatible = "amlogic,meson-sec-wdt";
+ secure-monitor = <&sm>;
+ status = "okay";
+ };
};
gic: interrupt-controller@ff901000 {
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread