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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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d0342ceb78
Allwinner R40 (also known as A40i, T3, V40) has a CAN controller. The controller is the same as in earlier A10 and A20 SoCs, but needs reset line to be deasserted before use. This patch Introduces new compatible for R40 CAN controller with required resets property. Link: https://lore.kernel.org/all/20211122104616.537156-2-boger@wirenboard.com Signed-off-by: Evgeny Boger <boger@wirenboard.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
76 lines
1.5 KiB
YAML
76 lines
1.5 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/net/can/allwinner,sun4i-a10-can.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner A10 CAN Controller Device Tree Bindings
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maintainers:
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- Chen-Yu Tsai <wens@csie.org>
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- Maxime Ripard <mripard@kernel.org>
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properties:
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compatible:
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oneOf:
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- items:
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- const: allwinner,sun7i-a20-can
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- const: allwinner,sun4i-a10-can
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- const: allwinner,sun4i-a10-can
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- const: allwinner,sun8i-r40-can
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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resets:
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maxItems: 1
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if:
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properties:
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compatible:
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contains:
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const: allwinner,sun8i-r40-can
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then:
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required:
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- resets
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/clock/sun7i-a20-ccu.h>
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can0: can@1c2bc00 {
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compatible = "allwinner,sun7i-a20-can",
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"allwinner,sun4i-a10-can";
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reg = <0x01c2bc00 0x400>;
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interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&ccu CLK_APB1_CAN>;
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};
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- |
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#define RST_BUS_CAN 68
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#define CLK_BUS_CAN 91
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can1: can@1c2bc00 {
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compatible = "allwinner,sun8i-r40-can";
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reg = <0x01c2bc00 0x400>;
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interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&ccu CLK_BUS_CAN>;
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resets = <&ccu RST_BUS_CAN>;
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};
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...
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