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From: Guo Ren <ren_guo@c-sky.com>
To: tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com,
	robh+dt@kernel.org, mark.rutland@arm.com
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	c-sky_gcc_upstream@c-sky.com, green.hu@gmail.com, arnd@arndb.de,
	Guo Ren <ren_guo@c-sky.com>
Subject: [PATCH V8 2/2] dt-bindings: interrupt-controller: C-SKY APB intc
Date: Thu, 20 Sep 2018 16:25:20 +0800	[thread overview]
Message-ID: <4ae33bd9112fc2da10b395391b2e72b80919aaa9.1537412037.git.ren_guo@c-sky.com> (raw)
In-Reply-To: <cover.1537412037.git.ren_guo@c-sky.com>
In-Reply-To: <cover.1537412037.git.ren_guo@c-sky.com>

 - Dt-bindings doc about C-SKY apb bus interrupt controller.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
---
 .../interrupt-controller/csky,apb-intc.txt         | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt
new file mode 100644
index 0000000..4aeac51
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt
@@ -0,0 +1,62 @@
+==============================
+C-SKY APB Interrupt Controller
+==============================
+
+C-SKY APB Interrupt Controller is a simple soc interrupt controller
+on the apb bus and we only use it as root irq controller.
+
+ - csky,apb-intc is used in a lot of csky fpgas and socs, it support 64 irq nums.
+ - csky,dual-apb-intc consists of 2 apb-intc and 128 irq nums supported.
+ - csky,gx6605s-intc is gx6605s soc internal irq interrupt controller, 64 irq nums.
+
+=============================
+intc node bindings definition
+=============================
+
+	Description: Describes APB interrupt controller
+
+	PROPERTIES
+
+	- compatible
+		Usage: required
+		Value type: <string>
+		Definition: must be "csky,apb-intc"
+				    "csky,dual-apb-intc"
+				    "csky,gx6605s-intc"
+	- #interrupt-cells
+		Usage: required
+		Value type: <u32>
+		Definition: must be <1>
+	- reg
+		Usage: required
+		Value type: <u32 u32>
+		Definition: <phyaddr size> in soc from cpu view
+	- interrupt-controller:
+		Usage: required
+	- csky,support-pulse-signal:
+		Usage: select
+		Description: to support pulse signal flag
+
+Examples:
+---------
+
+	intc: interrupt-controller@500000 {
+		compatible = "csky,apb-intc";
+		#interrupt-cells = <1>;
+		reg = <0x00500000 0x400>;
+		interrupt-controller;
+	};
+
+	intc: interrupt-controller@500000 {
+		compatible = "csky,dual-apb-intc";
+		#interrupt-cells = <1>;
+		reg = <0x00500000 0x400>;
+		interrupt-controller;
+	};
+
+	intc: interrupt-controller@500000 {
+		compatible = "csky,gx6605s-intc";
+		#interrupt-cells = <1>;
+		reg = <0x00500000 0x400>;
+		interrupt-controller;
+	};
-- 
2.7.4


      parent reply	other threads:[~2018-09-20  8:25 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-20  8:25 [PATCH V8 0/2] irqchip: add C-SKY APB bus interrupt controller Guo Ren
2018-09-20  8:25 ` [PATCH V8 1/2] " Guo Ren
2018-09-20  8:25 ` Guo Ren [this message]

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