diff options
Diffstat (limited to 'Documentation/devicetree/bindings/net/can')
4 files changed, 63 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt index bc77477c6878..94c0f8bf4deb 100644 --- a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt +++ b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt @@ -32,6 +32,15 @@ Optional properties: ack_gpr is the gpr register offset of CAN stop acknowledge. ack_bit is the bit offset of CAN stop acknowledge. +- fsl,clk-source: Select the clock source to the CAN Protocol Engine (PE). + It's SoC Implementation dependent. Refer to RM for detailed + definition. If this property is not set in device tree node + then driver selects clock source 1 by default. + 0: clock source 0 (oscillator clock) + 1: clock source 1 (peripheral clock) + +- wakeup-source: enable CAN remote wakeup + Example: can@1c000 { @@ -40,4 +49,5 @@ Example: interrupts = <48 0x2>; interrupt-parent = <&mpic>; clock-frequency = <200000000>; // filled in by bootloader + fsl,clk-source = <0>; // select clock source 0 for PE }; diff --git a/Documentation/devicetree/bindings/net/can/rcar_can.txt b/Documentation/devicetree/bindings/net/can/rcar_can.txt index b463e1268ac4..19e4a7d91511 100644 --- a/Documentation/devicetree/bindings/net/can/rcar_can.txt +++ b/Documentation/devicetree/bindings/net/can/rcar_can.txt @@ -5,6 +5,7 @@ Required properties: - compatible: "renesas,can-r8a7743" if CAN controller is a part of R8A7743 SoC. "renesas,can-r8a7744" if CAN controller is a part of R8A7744 SoC. "renesas,can-r8a7745" if CAN controller is a part of R8A7745 SoC. + "renesas,can-r8a77470" if CAN controller is a part of R8A77470 SoC. "renesas,can-r8a774a1" if CAN controller is a part of R8A774A1 SoC. "renesas,can-r8a774c0" if CAN controller is a part of R8A774C0 SoC. "renesas,can-r8a7778" if CAN controller is a part of R8A7778 SoC. @@ -17,6 +18,8 @@ Required properties: "renesas,can-r8a7795" if CAN controller is a part of R8A7795 SoC. "renesas,can-r8a7796" if CAN controller is a part of R8A7796 SoC. "renesas,can-r8a77965" if CAN controller is a part of R8A77965 SoC. + "renesas,can-r8a77990" if CAN controller is a part of R8A77990 SoC. + "renesas,can-r8a77995" if CAN controller is a part of R8A77995 SoC. "renesas,rcar-gen1-can" for a generic R-Car Gen1 compatible device. "renesas,rcar-gen2-can" for a generic R-Car Gen2 or RZ/G1 compatible device. @@ -33,7 +36,8 @@ Required properties: - pinctrl-0: pin control group to be used for this controller. - pinctrl-names: must be "default". -Required properties for R8A7795, R8A7796 and R8A77965: +Required properties for R8A774A1, R8A774C0, R8A7795, R8A7796, R8A77965, +R8A77990, and R8A77995: For the denoted SoCs, "clkp2" can be CANFD clock. This is a div6 clock and can be used by both CAN and CAN FD controller at the same time. It needs to be scaled to maximum frequency if any of these controllers use it. This is done diff --git a/Documentation/devicetree/bindings/net/can/rcar_canfd.txt b/Documentation/devicetree/bindings/net/can/rcar_canfd.txt index 32f051f6d338..a901cd9be29e 100644 --- a/Documentation/devicetree/bindings/net/can/rcar_canfd.txt +++ b/Documentation/devicetree/bindings/net/can/rcar_canfd.txt @@ -4,6 +4,7 @@ Renesas R-Car CAN FD controller Device Tree Bindings Required properties: - compatible: Must contain one or more of the following: - "renesas,rcar-gen3-canfd" for R-Car Gen3 and RZ/G2 compatible controllers. + - "renesas,r8a774a1-canfd" for R8A774A1 (RZ/G2M) compatible controller. - "renesas,r8a774c0-canfd" for R8A774C0 (RZ/G2E) compatible controller. - "renesas,r8a7795-canfd" for R8A7795 (R-Car H3) compatible controller. - "renesas,r8a7796-canfd" for R8A7796 (R-Car M3-W) compatible controller. @@ -11,6 +12,7 @@ Required properties: - "renesas,r8a77970-canfd" for R8A77970 (R-Car V3M) compatible controller. - "renesas,r8a77980-canfd" for R8A77980 (R-Car V3H) compatible controller. - "renesas,r8a77990-canfd" for R8A77990 (R-Car E3) compatible controller. + - "renesas,r8a77995-canfd" for R8A77995 (R-Car D3) compatible controller. When compatible with the generic version, nodes must list the SoC-specific version corresponding to the platform first, followed by the @@ -29,13 +31,12 @@ The name of the child nodes are "channel0" and "channel1" respectively. Each child node supports the "status" property only, which is used to enable/disable the respective channel. -Required properties for "renesas,r8a774c0-canfd", "renesas,r8a7795-canfd", -"renesas,r8a7796-canfd", "renesas,r8a77965-canfd", and "renesas,r8a77990-canfd" -compatible: -In R8A774C0, R8A7795, R8A7796, R8A77965, and R8A77990 SoCs, canfd clock is a -div6 clock and can be used by both CAN and CAN FD controller at the same time. -It needs to be scaled to maximum frequency if any of these controllers use it. -This is done using the below properties: +Required properties for R8A774A1, R8A774C0, R8A7795, R8A7796, R8A77965, +R8A77990, and R8A77995: +In the denoted SoCs, canfd clock is a div6 clock and can be used by both CAN +and CAN FD controller at the same time. It needs to be scaled to maximum +frequency if any of these controllers use it. This is done using the below +properties: - assigned-clocks: phandle of canfd clock. - assigned-clock-rates: maximum frequency of this clock. diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt new file mode 100644 index 000000000000..27e1b4cebfbd --- /dev/null +++ b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt @@ -0,0 +1,40 @@ +Texas Instruments TCAN4x5x CAN Controller +================================================ + +This file provides device node information for the TCAN4x5x interface contains. + +Required properties: + - compatible: "ti,tcan4x5x" + - reg: 0 + - #address-cells: 1 + - #size-cells: 0 + - spi-max-frequency: Maximum frequency of the SPI bus the chip can + operate at should be less than or equal to 18 MHz. + - device-wake-gpios: Wake up GPIO to wake up the TCAN device. + - interrupt-parent: the phandle to the interrupt controller which provides + the interrupt. + - interrupts: interrupt specification for data-ready. + +See Documentation/devicetree/bindings/net/can/m_can.txt for additional +required property details. + +Optional properties: + - reset-gpios: Hardwired output GPIO. If not defined then software + reset. + - device-state-gpios: Input GPIO that indicates if the device is in + a sleep state or if the device is active. + +Example: +tcan4x5x: tcan4x5x@0 { + compatible = "ti,tcan4x5x"; + reg = <0>; + #address-cells = <1>; + #size-cells = <1>; + spi-max-frequency = <10000000>; + bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>; + interrupt-parent = <&gpio1>; + interrupts = <14 GPIO_ACTIVE_LOW>; + device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>; + device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio1 27 GPIO_ACTIVE_LOW>; +}; |