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dt: overlay: added overlay for several variants of mcp25xxfd
This includes overlays for individual can devices but also support for the quadcan-fd hat Signed-off-by: Martin Sperl <[email protected]>
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79 changes: 79 additions & 0 deletions
79
arch/arm/boot/dts/overlays/mcp2517fd-spi0.0-can0-overlay.dts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Device tree overlay for mcp2517fd/can0 on spi0.0 | ||
| */ | ||
|
|
||
| /dts-v1/; | ||
| /plugin/; | ||
|
|
||
| / { | ||
| compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2837", "brcm,bcm2708", "brcm,bcm2709", "brcm,bcm2710"; | ||
| /* disable spi-dev for spi0.0 */ | ||
| fragment@0 { | ||
| target = <&spi0>; | ||
| __overlay__ { | ||
| status = "okay"; | ||
| }; | ||
| }; | ||
|
|
||
| fragment@1 { | ||
| target = <&spidev0>; | ||
| __overlay__ { | ||
| status = "disabled"; | ||
| }; | ||
| }; | ||
|
|
||
| /* the interrupt pin of the can-controller */ | ||
| fragment@2 { | ||
| target = <&gpio>; | ||
| __overlay__ { | ||
| can0_pins: can0_pins { | ||
| brcm,pins = <25>; | ||
| brcm,function = <0>; /* input */ | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| /* the clock/oscillator of the can-controller */ | ||
| fragment@3 { | ||
| target-path = "/clocks"; | ||
| __overlay__ { | ||
| /* external oscillator of mcp2517fd on SPI0.0 */ | ||
| can0_osc: can0_osc { | ||
| compatible = "fixed-clock"; | ||
| #clock-cells = <0>; | ||
| clock-frequency = <40000000>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| /* the spi config of the can-controller itself binding everything together */ | ||
| fragment@4 { | ||
| target = <&spi0>; | ||
| __overlay__ { | ||
| /* needed to avoid dtc warning */ | ||
| #address-cells = <1>; | ||
| #size-cells = <0>; | ||
| can0: mcp2517fd@0 { | ||
| reg = <0>; | ||
| compatible = "microchip,mcp2517fd"; | ||
| pinctrl-names = "default"; | ||
| pinctrl-0 = <&can0_pins>; | ||
| spi-max-frequency = <20000000>; | ||
| interrupt-parent = <&gpio>; | ||
| interrupts = <25 0x8>; | ||
| clocks = <&can0_osc>; | ||
| microchip,clock-out-div = <10>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| __overrides__ { | ||
| oscillator = <&can0_osc>,"clock-frequency:0"; | ||
| spimaxfrequency = <&can0>,"spi-max-frequency:0"; | ||
| interrupt = <&can0_pins>,"brcm,pins:0",<&can0>,"interrupts:0"; | ||
| clockdiv = <&can0>,"microchip,clock-div?"; | ||
| clockoutdiv = <&can0>,"microchip,clock-out-div:0"; | ||
| opendrain = <&can0>, "microchip,gpio-open-drain?"; | ||
| xstandby = <&can0>, "microchip,gpio0-xstandby?"; | ||
| }; | ||
| }; |
79 changes: 79 additions & 0 deletions
79
arch/arm/boot/dts/overlays/mcp2517fd-spi0.1-can1-overlay.dts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Device tree overlay for mcp2517fd/can1 on spi0.1 | ||
| */ | ||
|
|
||
| /dts-v1/; | ||
| /plugin/; | ||
|
|
||
| / { | ||
| compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2837", "brcm,bcm2708", "brcm,bcm2709", "brcm,bcm2710"; | ||
| /* disable spi-dev for spi0.1 */ | ||
| fragment@0 { | ||
| target = <&spi0>; | ||
| __overlay__ { | ||
| status = "okay"; | ||
| }; | ||
| }; | ||
|
|
||
| fragment@1 { | ||
| target = <&spidev1>; | ||
| __overlay__ { | ||
| status = "disabled"; | ||
| }; | ||
| }; | ||
|
|
||
| /* the interrupt pin of the can-controller */ | ||
| fragment@2 { | ||
| target = <&gpio>; | ||
| __overlay__ { | ||
| can1_pins: can1_pins { | ||
| brcm,pins = <26>; | ||
| brcm,function = <0>; /* input */ | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| /* the clock/oscillator of the can-controller */ | ||
| fragment@3 { | ||
| target-path = "/clocks"; | ||
| __overlay__ { | ||
| /* external oscillator of mcp2517fd on SPI0.0 */ | ||
| can1_osc: can1_osc { | ||
| compatible = "fixed-clock"; | ||
| #clock-cells = <0>; | ||
| clock-frequency = <40000000>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| /* the spi config of the can-controller itself binding everything together */ | ||
| fragment@4 { | ||
| target = <&spi0>; | ||
| __overlay__ { | ||
| /* needed to avoid dtc warning */ | ||
| #address-cells = <1>; | ||
| #size-cells = <0>; | ||
| can1: mcp2517fd@1 { | ||
| reg = <1>; | ||
| compatible = "microchip,mcp2517fd"; | ||
| pinctrl-names = "default"; | ||
| pinctrl-0 = <&can1_pins>; | ||
| spi-max-frequency = <20000000>; | ||
| interrupt-parent = <&gpio>; | ||
| interrupts = <26 0x8>; | ||
| clocks = <&can1_osc>; | ||
| microchip,clock-out-div = <10>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| __overrides__ { | ||
| oscillator = <&can1_osc>,"clock-frequency:0"; | ||
| spimaxfrequency = <&can1>,"spi-max-frequency:0"; | ||
| interrupt = <&can1_pins>,"brcm,pins:0",<&can1>,"interrupts:0"; | ||
| clockdiv = <&can1>,"microchip,clock-div?"; | ||
| clockoutdiv = <&can1>,"microchip,clock-out-div:0"; | ||
| opendrain = <&can1>, "microchip,gpio-open-drain?"; | ||
| xstandby = <&can1>, "microchip,gpio0-xstandby?"; | ||
| }; | ||
| }; |
79 changes: 79 additions & 0 deletions
79
arch/arm/boot/dts/overlays/mcp2517fd-spi1.0-can2-overlay.dts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Device tree overlay for mcp2517fd/can2 on spi0.0 | ||
| */ | ||
|
|
||
| /dts-v1/; | ||
| /plugin/; | ||
|
|
||
| / { | ||
| compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2837", "brcm,bcm2708", "brcm,bcm2709", "brcm,bcm2710"; | ||
| /* disable spi-dev for spi0.0 */ | ||
| fragment@0 { | ||
| target = <&spi0>; | ||
| __overlay__ { | ||
| status = "okay"; | ||
| }; | ||
| }; | ||
|
|
||
| fragment@1 { | ||
| target = <&spidev0>; | ||
| __overlay__ { | ||
| status = "disabled"; | ||
| }; | ||
| }; | ||
|
|
||
| /* the interrupt pin of the can-controller */ | ||
| fragment@2 { | ||
| target = <&gpio>; | ||
| __overlay__ { | ||
| can2_pins: can2_pins { | ||
| brcm,pins = <25>; | ||
| brcm,function = <0>; /* input */ | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| /* the clock/oscillator of the can-controller */ | ||
| fragment@3 { | ||
| target-path = "/clocks"; | ||
| __overlay__ { | ||
| /* external oscillator of mcp2517fd on SPI0.0 */ | ||
| can2_osc: can2_osc { | ||
| compatible = "fixed-clock"; | ||
| #clock-cells = <0>; | ||
| clock-frequency = <40000000>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| /* the spi config of the can-controller itself binding everything together */ | ||
| fragment@4 { | ||
| target = <&spi0>; | ||
| __overlay__ { | ||
| /* needed to avoid dtc warning */ | ||
| #address-cells = <1>; | ||
| #size-cells = <0>; | ||
| can2: mcp2517fd@0 { | ||
| reg = <0>; | ||
| compatible = "microchip,mcp2517fd"; | ||
| pinctrl-names = "default"; | ||
| pinctrl-0 = <&can2_pins>; | ||
| spi-max-frequency = <20000000>; | ||
| interrupt-parent = <&gpio>; | ||
| interrupts = <25 0x8>; | ||
| clocks = <&can2_osc>; | ||
| microchip,clock-out-div = <10>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| __overrides__ { | ||
| oscillator = <&can2_osc>,"clock-frequency:0"; | ||
| spimaxfrequency = <&can2>,"spi-max-frequency:0"; | ||
| interrupt = <&can2_pins>,"brcm,pins:0",<&can2>,"interrupts:0"; | ||
| clockdiv = <&can2>,"microchip,clock-div?"; | ||
| clockoutdiv = <&can2>,"microchip,clock-out-div:0"; | ||
| opendrain = <&can2>, "microchip,gpio-open-drain?"; | ||
| xstandby = <&can2>, "microchip,gpio0-xstandby?"; | ||
| }; | ||
| }; |
79 changes: 79 additions & 0 deletions
79
arch/arm/boot/dts/overlays/mcp2517fd-spi1.1-can3-overlay.dts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Device tree overlay for mcp2517fd/can3 on spi0.0 | ||
| */ | ||
|
|
||
| /dts-v1/; | ||
| /plugin/; | ||
|
|
||
| / { | ||
| compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2837", "brcm,bcm2708", "brcm,bcm2709", "brcm,bcm2710"; | ||
| /* disable spi-dev for spi0.0 */ | ||
| fragment@0 { | ||
| target = <&spi0>; | ||
| __overlay__ { | ||
| status = "okay"; | ||
| }; | ||
| }; | ||
|
|
||
| fragment@1 { | ||
| target = <&spidev0>; | ||
| __overlay__ { | ||
| status = "disabled"; | ||
| }; | ||
| }; | ||
|
|
||
| /* the interrupt pin of the can-controller */ | ||
| fragment@2 { | ||
| target = <&gpio>; | ||
| __overlay__ { | ||
| can3_pins: can3_pins { | ||
| brcm,pins = <25>; | ||
| brcm,function = <0>; /* input */ | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| /* the clock/oscillator of the can-controller */ | ||
| fragment@3 { | ||
| target-path = "/clocks"; | ||
| __overlay__ { | ||
| /* external oscillator of mcp2517fd on SPI0.0 */ | ||
| can3_osc: can3_osc { | ||
| compatible = "fixed-clock"; | ||
| #clock-cells = <0>; | ||
| clock-frequency = <40000000>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| /* the spi config of the can-controller itself binding everything together */ | ||
| fragment@4 { | ||
| target = <&spi0>; | ||
| __overlay__ { | ||
| /* needed to avoid dtc warning */ | ||
| #address-cells = <1>; | ||
| #size-cells = <0>; | ||
| can3: mcp2517fd@0 { | ||
| reg = <0>; | ||
| compatible = "microchip,mcp2517fd"; | ||
| pinctrl-names = "default"; | ||
| pinctrl-0 = <&can3_pins>; | ||
| spi-max-frequency = <20000000>; | ||
| interrupt-parent = <&gpio>; | ||
| interrupts = <25 0x8>; | ||
| clocks = <&can3_osc>; | ||
| microchip,clock-out-div = <10>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| __overrides__ { | ||
| oscillator = <&can3_osc>,"clock-frequency:0"; | ||
| spimaxfrequency = <&can3>,"spi-max-frequency:0"; | ||
| interrupt = <&can3_pins>,"brcm,pins:0",<&can3>,"interrupts:0"; | ||
| clockdiv = <&can3>,"microchip,clock-div?"; | ||
| clockoutdiv = <&can3>,"microchip,clock-out-div:0"; | ||
| opendrain = <&can3>, "microchip,gpio-open-drain?"; | ||
| xstandby = <&can3>, "microchip,gpio0-xstandby?"; | ||
| }; | ||
| }; |
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