62 lines
2.0 KiB
Plaintext
62 lines
2.0 KiB
Plaintext
|
Xilinx Axi CAN/Zynq CANPS controller Device Tree Bindings
|
||
|
|
---------------------------------------------------------
|
||
|
|
|
||
|
|
Required properties:
|
||
|
|
- compatible : Should be:
|
||
|
|
- "xlnx,zynq-can-1.0" for Zynq CAN controllers
|
||
|
|
- "xlnx,axi-can-1.00.a" for Axi CAN controllers
|
||
|
|
- "xlnx,canfd-1.0" for CAN FD controllers
|
||
|
|
- "xlnx,canfd-2.0" for CAN FD 2.0 controllers
|
||
|
|
- reg : Physical base address and size of the controller
|
||
|
|
registers map.
|
||
|
|
- interrupts : Property with a value describing the interrupt
|
||
|
|
number.
|
||
|
|
- clock-names : List of input clock names
|
||
|
|
- "can_clk", "pclk" (For CANPS),
|
||
|
|
- "can_clk", "s_axi_aclk" (For AXI CAN and CAN FD).
|
||
|
|
(See clock bindings for details).
|
||
|
|
- clocks : Clock phandles (see clock bindings for details).
|
||
|
|
- tx-fifo-depth : Can Tx fifo depth (Zynq, Axi CAN).
|
||
|
|
- rx-fifo-depth : Can Rx fifo depth (Zynq, Axi CAN, CAN FD in
|
||
|
|
sequential Rx mode).
|
||
|
|
- tx-mailbox-count : Can Tx mailbox buffer count (CAN FD).
|
||
|
|
- rx-mailbox-count : Can Rx mailbox buffer count (CAN FD in mailbox Rx
|
||
|
|
mode).
|
||
|
|
|
||
|
|
|
||
|
|
Example:
|
||
|
|
|
||
|
|
For Zynq CANPS Dts file:
|
||
|
|
zynq_can_0: can@e0008000 {
|
||
|
|
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@40000000 {
|
||
|
|
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>;
|
||
|
|
};
|
||
|
|
For CAN FD Dts file:
|
||
|
|
canfd_0: canfd@40000000 {
|
||
|
|
compatible = "xlnx,canfd-1.0";
|
||
|
|
clocks = <&clkc 0>, <&clkc 1>;
|
||
|
|
clock-names = "can_clk", "s_axi_aclk";
|
||
|
|
reg = <0x40000000 0x2000>;
|
||
|
|
interrupt-parent = <&intc>;
|
||
|
|
interrupts = <0 59 1>;
|
||
|
|
tx-mailbox-count = <0x20>;
|
||
|
|
rx-fifo-depth = <0x20>;
|
||
|
|
};
|