linux-kernel - [PATCH 1/3] dt-bindings: watchdog: sam9x60

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <1570001371-8174-1-git-send-email-eugen.hristev@microchip.com>
Date:   Wed, 2 Oct 2019 07:35:23 +0000
From:   <Eugen.Hristev@...rochip.com>
To:     <wim@...ux-watchdog.org>, <linux@...ck-us.net>,
        <robh+dt@...nel.org>, <linux-watchdog@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.or>
CC:     <Nicolas.Ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <Eugen.Hristev@...rochip.com>
Subject: [PATCH 1/3] dt-bindings: watchdog: sam9x60_wdt: add bindings

From: Eugen Hristev <eugen.hristev@...rochip.com>

Add bindings for Microchip SAM9X60 Watchdog Timer

It has the same bindings as
Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt
except the compatible.

Signed-off-by: Eugen Hristev <eugen.hristev@...rochip.com>
---
 .../devicetree/bindings/watchdog/sam9x60-wdt.txt   | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt b/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt
new file mode 100644
index 00000000..74b4e2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt
@@ -0,0 +1,34 @@
+* Microchip SAM9X60 Watchdog Timer (WDT) Controller
+
+Required properties:
+- compatible: "microchip,sam9x60-wdt"
+- reg: base physical address and length of memory mapped region.
+
+Optional properties:
+- timeout-sec: watchdog timeout value (in seconds).
+- interrupts: interrupt number to the CPU.
+- atmel,watchdog-type: should be "hardware" or "software".
+	"hardware": enable watchdog fault reset. A watchdog fault triggers
+		    watchdog reset.
+	"software": enable watchdog fault interrupt. A watchdog fault asserts
+		    watchdog interrupt.
+- atmel,idle-halt: present if you want to stop the watchdog when the CPU is
+		   in idle state.
+	CAUTION: This property should be used with care, it actually makes the
+	watchdog not counting when the CPU is in idle state, therefore the
+	watchdog reset time depends on mean CPU usage and will not reset at all
+	if the CPU stop working while it is in idle state, which is probably
+	not what you want.
+- atmel,dbg-halt: present if you want to stop the watchdog when the CPU is
+		  in debug state.
+
+Example:
+	watchdog@...fff80 {
+		compatible = "microchip,sam9x60-wdt";
+		reg = <0xffffff80 0x24>;
+		interrupts = <1 IRQ_TYPE_LEVEL_HIGH 5>;
+		timeout-sec = <10>;
+		atmel,watchdog-type = "hardware";
+		atmel,dbg-halt;
+		atmel,idle-halt;
+	};
-- 
2.7.4