From 2469627d175c1d6d7812a1395dd3ef053a0e65b3 Mon Sep 17 00:00:00 2001 From: AnilKumar Ch Date: Thu, 2 Aug 2012 18:43:10 +0530 Subject: can: c_can: Add device tree support to Bosch C_CAN/D_CAN controller Add device tree support to C_CAN/D_CAN controller and usage details are added to device tree documentation. Driver was tested on AM335x EVM. Signed-off-by: AnilKumar Ch For the of binding doc: Reviewed-by: Stephen Warren Signed-off-by: Marc Kleine-Budde --- .../devicetree/bindings/net/can/c_can.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/can/c_can.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/can/c_can.txt b/Documentation/devicetree/bindings/net/can/c_can.txt new file mode 100644 index 000000000000..8f1ae81228e3 --- /dev/null +++ b/Documentation/devicetree/bindings/net/can/c_can.txt @@ -0,0 +1,49 @@ +Bosch C_CAN/D_CAN controller Device Tree Bindings +------------------------------------------------- + +Required properties: +- compatible : Should be "bosch,c_can" for C_CAN controllers and + "bosch,d_can" for D_CAN controllers. +- reg : physical base address and size of the C_CAN/D_CAN + registers map +- interrupts : property with a value describing the interrupt + number + +Optional properties: +- ti,hwmods : Must be "d_can" or "c_can", n being the + instance number + +Note: "ti,hwmods" field is used to fetch the base address and irq +resources from TI, omap hwmod data base during device registration. +Future plan is to migrate hwmod data base contents into device tree +blob so that, all the required data will be used from device tree dts +file. + +Example: + +Step1: SoC common .dtsi file + + dcan1: d_can@481d0000 { + compatible = "bosch,d_can"; + reg = <0x481d0000 0x2000>; + interrupts = <55>; + interrupt-parent = <&intc>; + status = "disabled"; + }; + +(or) + + dcan1: d_can@481d0000 { + compatible = "bosch,d_can"; + ti,hwmods = "d_can1"; + reg = <0x481d0000 0x2000>; + interrupts = <55>; + interrupt-parent = <&intc>; + status = "disabled"; + }; + +Step 2: board specific .dts file + + &dcan1 { + status = "okay"; + }; -- cgit v1.2.3