diff options
Diffstat (limited to 'Documentation/devicetree/bindings/net/can')
6 files changed, 217 insertions, 71 deletions
diff --git a/Documentation/devicetree/bindings/net/can/bosch,c_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,c_can.yaml new file mode 100644 index 000000000000..2cd145a642f1 --- /dev/null +++ b/Documentation/devicetree/bindings/net/can/bosch,c_can.yaml @@ -0,0 +1,119 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/can/bosch,c_can.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Bosch C_CAN/D_CAN controller Device Tree Bindings + +description: Bosch C_CAN/D_CAN controller for CAN bus + +maintainers: + - Dario Binacchi <dariobin@libero.it> + +allOf: + - $ref: can-controller.yaml# + +properties: + compatible: + oneOf: + - enum: + - bosch,c_can + - bosch,d_can + - ti,dra7-d_can + - ti,am3352-d_can + - items: + - enum: + - ti,am4372-d_can + - const: ti,am3352-d_can + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 4 + + power-domains: + description: | + Should contain a phandle to a PM domain provider node and an args + specifier containing the DCAN device id value. It's mandatory for + Keystone 2 66AK2G SoCs only. + maxItems: 1 + + clocks: + description: | + CAN functional clock phandle. + maxItems: 1 + + clock-names: + maxItems: 1 + + syscon-raminit: + description: | + Handle to system control region that contains the RAMINIT register, + register offset to the RAMINIT register and the CAN instance number (0 + offset). + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + items: + - description: The phandle to the system control region. + - description: The register offset. + - description: The CAN instance number. + + resets: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + +if: + properties: + compatible: + contains: + enum: + - bosch,d_can + +then: + properties: + interrupts: + minItems: 4 + maxItems: 4 + items: + - description: Error and status IRQ + - description: Message object IRQ + - description: RAM ECC correctable error IRQ + - description: RAM ECC non-correctable error IRQ + +else: + properties: + interrupts: + maxItems: 1 + items: + - description: Error and status IRQ + +additionalProperties: false + +examples: + - | + #include <dt-bindings/reset/altr,rst-mgr.h> + + can@ffc00000 { + compatible = "bosch,d_can"; + reg = <0xffc00000 0x1000>; + interrupts = <0 131 4>, <0 132 4>, <0 133 4>, <0 134 4>; + clocks = <&can0_clk>; + resets = <&rst CAN0_RESET>; + }; + - | + can@0 { + compatible = "ti,am3352-d_can"; + reg = <0x0 0x2000>; + clocks = <&dcan1_fck>; + clock-names = "fck"; + syscon-raminit = <&scm_conf 0x644 1>; + interrupts = <55>; + }; diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml index f84e31348d80..fb547e26c676 100644 --- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml +++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml @@ -104,9 +104,18 @@ properties: maximum: 32 maxItems: 1 + power-domains: + description: + Power domain provider node and an args specifier containing + the can device id value. + maxItems: 1 + can-transceiver: $ref: can-transceiver.yaml# + phys: + maxItems: 1 + required: - compatible - reg diff --git a/Documentation/devicetree/bindings/net/can/c_can.txt b/Documentation/devicetree/bindings/net/can/c_can.txt deleted file mode 100644 index 366479806acb..000000000000 --- a/Documentation/devicetree/bindings/net/can/c_can.txt +++ /dev/null @@ -1,65 +0,0 @@ -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. - Can be "ti,dra7-d_can", "ti,am3352-d_can" or - "ti,am4372-d_can". -- reg : physical base address and size of the C_CAN/D_CAN - registers map -- interrupts : property with a value describing the interrupt - number - -The following are mandatory properties for DRA7x, AM33xx and AM43xx SoCs only: -- ti,hwmods : Must be "d_can<n>" or "c_can<n>", n being the - instance number - -The following are mandatory properties for Keystone 2 66AK2G SoCs only: -- power-domains : Should contain a phandle to a PM domain provider node - and an args specifier containing the DCAN device id - value. This property is as per the binding, - Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml -- clocks : CAN functional clock phandle. This property is as per the - binding, - Documentation/devicetree/bindings/clock/ti,sci-clk.yaml - -Optional properties: -- syscon-raminit : Handle to system control region that contains the - RAMINIT register, register offset to the RAMINIT - register and the CAN instance number (0 offset). - -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"; - }; diff --git a/Documentation/devicetree/bindings/net/can/can-controller.yaml b/Documentation/devicetree/bindings/net/can/can-controller.yaml index 9cf2ae097156..1f0e98051074 100644 --- a/Documentation/devicetree/bindings/net/can/can-controller.yaml +++ b/Documentation/devicetree/bindings/net/can/can-controller.yaml @@ -13,6 +13,15 @@ properties: $nodename: pattern: "^can(@.*)?$" + termination-gpios: + description: GPIO pin to enable CAN bus termination. + maxItems: 1 + + termination-ohms: + description: The resistance value of the CAN bus termination resistor. + minimum: 1 + maximum: 65535 + additionalProperties: true ... diff --git a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml index 55bff1586b6f..3f0ee17c1461 100644 --- a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml +++ b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml @@ -119,6 +119,9 @@ properties: minimum: 0 maximum: 2 + termination-gpios: true + termination-ohms: true + required: - compatible - reg @@ -148,3 +151,17 @@ examples: fsl,stop-mode = <&gpr 0x34 28>; fsl,scu-index = /bits/ 8 <1>; }; + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/gpio/gpio.h> + + can@2090000 { + compatible = "fsl,imx6q-flexcan"; + reg = <0x02090000 0x4000>; + interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks 1>, <&clks 2>; + clock-names = "ipg", "per"; + fsl,stop-mode = <&gpr 0x34 28>; + termination-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>; + termination-ohms = <120>; + }; diff --git a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml index 0b33ba9ccb47..546c6e6d2fb0 100644 --- a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml +++ b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml @@ -30,13 +30,15 @@ properties: - renesas,r8a77995-canfd # R-Car D3 - const: renesas,rcar-gen3-canfd # R-Car Gen3 and RZ/G2 + - items: + - enum: + - renesas,r9a07g044-canfd # RZ/G2{L,LC} + - const: renesas,rzg2l-canfd # RZ/G2L family + reg: maxItems: 1 - interrupts: - items: - - description: Channel interrupt - - description: Global interrupt + interrupts: true clocks: maxItems: 3 @@ -50,8 +52,7 @@ properties: power-domains: maxItems: 1 - resets: - maxItems: 1 + resets: true renesas,no-can-fd: $ref: /schemas/types.yaml#/definitions/flag @@ -91,6 +92,62 @@ required: - channel0 - channel1 +if: + properties: + compatible: + contains: + enum: + - renesas,rzg2l-canfd +then: + properties: + interrupts: + items: + - description: CAN global error interrupt + - description: CAN receive FIFO interrupt + - description: CAN0 error interrupt + - description: CAN0 transmit interrupt + - description: CAN0 transmit/receive FIFO receive completion interrupt + - description: CAN1 error interrupt + - description: CAN1 transmit interrupt + - description: CAN1 transmit/receive FIFO receive completion interrupt + + interrupt-names: + items: + - const: g_err + - const: g_recc + - const: ch0_err + - const: ch0_rec + - const: ch0_trx + - const: ch1_err + - const: ch1_rec + - const: ch1_trx + + resets: + maxItems: 2 + + reset-names: + items: + - const: rstp_n + - const: rstc_n + + required: + - interrupt-names + - reset-names +else: + properties: + interrupts: + items: + - description: Channel interrupt + - description: Global interrupt + + interrupt-names: + items: + - const: ch_int + - const: g_int + + resets: + maxItems: 1 + unevaluatedProperties: false examples: |