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f36554de78
commit17a3042262upstream. This tcan4x5x only comes with 2K of MRAM, a RX FIFO with a dept of 32 doesn't fit into the MRAM. Use a depth of 16 instead. Fixes:4edd396a19("dt-bindings: can: tcan4x5x: Add DT bindings for TCAN4x5X driver") Link: https://lore.kernel.org/all/20220119062951.2939851-1-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
41 lines
1.3 KiB
Plaintext
41 lines
1.3 KiB
Plaintext
Texas Instruments TCAN4x5x CAN Controller
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================================================
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This file provides device node information for the TCAN4x5x interface contains.
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Required properties:
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- compatible: "ti,tcan4x5x"
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- reg: 0
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- #address-cells: 1
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- #size-cells: 0
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- spi-max-frequency: Maximum frequency of the SPI bus the chip can
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operate at should be less than or equal to 18 MHz.
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- interrupt-parent: the phandle to the interrupt controller which provides
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the interrupt.
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- interrupts: interrupt specification for data-ready.
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See Documentation/devicetree/bindings/net/can/bosch,m_can.yaml for additional
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required property details.
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Optional properties:
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- reset-gpios: Hardwired output GPIO. If not defined then software
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reset.
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- device-state-gpios: Input GPIO that indicates if the device is in
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a sleep state or if the device is active.
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- device-wake-gpios: Wake up GPIO to wake up the TCAN device.
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Example:
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tcan4x5x: tcan4x5x@0 {
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compatible = "ti,tcan4x5x";
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reg = <0>;
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#address-cells = <1>;
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#size-cells = <1>;
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spi-max-frequency = <10000000>;
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bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
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interrupt-parent = <&gpio1>;
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interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
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device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
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device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
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};
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