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Message-ID: <59325214-bd7e-4b98-bc0f-c38a9104203b@BL2FFO11FD019.protection.gbl>
Date: Wed, 21 May 2014 12:29:16 +0530
From: Kedareswara rao Appana <appana.durga.rao@...inx.com>
To: <robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
<rob@...dley.net>, <michal.simek@...inx.com>
CC: <devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
Kedareswara rao Appana <appanad@...inx.com>
Subject: [PATCH v8 1/2] can: Add xilinx CAN device tree bindings documentation.
Add xilinx CAN bindings documentation.
Signed-off-by: Kedareswara rao Appana <appanad@...inx.com>
---
Changes for v8:
- None.
Changes for v7:
- Split the devicetree bindings doc as a seperate patch
---
.../devicetree/bindings/net/can/xilinx_can.txt | 44 ++++++++++++++++++++
1 files changed, 44 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/can/xilinx_can.txt
diff --git a/Documentation/devicetree/bindings/net/can/xilinx_can.txt b/Documentation/devicetree/bindings/net/can/xilinx_can.txt
new file mode 100644
index 0000000..fe38847
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/xilinx_can.txt
@@ -0,0 +1,44 @@
+Xilinx Axi CAN/Zynq CANPS controller Device Tree Bindings
+---------------------------------------------------------
+
+Required properties:
+- compatible : Should be "xlnx,zynq-can-1.0" for Zynq CAN
+ controllers and "xlnx,axi-can-1.00.a" for Axi CAN
+ controllers.
+- reg : Physical base address and size of the Axi CAN/Zynq
+ CANPS registers map.
+- interrupts : Property with a value describing the interrupt
+ number.
+- interrupt-parent : Must be core interrupt controller
+- clock-names : List of input clock names - "can_clk", "pclk"
+ (For CANPS), "can_clk" , "s_axi_aclk"(For AXI CAN)
+ (See clock bindings for details).
+- clocks : Clock phandles (see clock bindings for details).
+- tx-fifo-depth : Can Tx fifo depth.
+- rx-fifo-depth : Can Rx fifo depth.
+
+
+Example:
+
+For Zynq CANPS Dts file:
+ zynq_can_0: can@...08000 {
+ compatible = "xlnx,zynq-can-1.0";
+ clocks = <&clkc 19>, <&clkc 36>;
+ clock-names = "can_clk", "pclk";
+ reg = <0xe0008000 0x1000>;
+ interrupts = <0 28 4>;
+ interrupt-parent = <&intc>;
+ tx-fifo-depth = <0x40>;
+ rx-fifo-depth = <0x40>;
+ };
+For Axi CAN Dts file:
+ axi_can_0: axi-can@...00000 {
+ compatible = "xlnx,axi-can-1.00.a";
+ clocks = <&clkc 0>, <&clkc 1>;
+ clock-names = "can_clk","s_axi_aclk" ;
+ reg = <0x40000000 0x10000>;
+ interrupt-parent = <&intc>;
+ interrupts = <0 59 1>;
+ tx-fifo-depth = <0x40>;
+ rx-fifo-depth = <0x40>;
+ };
--
1.7.4
--
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