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 series introduce new compatible for R40 CAN controller, add support for reset line in driver and add the corresponding nodes to the SoC .dtsi file. The CAN IP was documented in early V40 datasheet [1]. It also fully supported in vendor BSP. However, CAN description was removed from more recent A40i, T3 and R40 user manuals and datasheets. Anyway, we verified that the CAN controller is indeed there and tested it extensively on A40i-based custom hardware [2]. [1] https://linux-sunxi.org/File:Allwinner_V40_Datasheet_V1.0.pdf [2] https://wirenboard.com/en/product/wiren-board-7/ Changes in v2: - sort pinmux nodes alphabetically and mark them with omit-if-no-ref Evgeny Boger (3): dt-bindings: net: can: add support for Allwinner R40 CAN controller can: sun4i_can: add support for R40 CAN controller ARM: dts: sun8i: r40: add node for CAN controller .../net/can/allwinner,sun4i-a10-can.yaml | 24 ++++++++ arch/arm/boot/dts/sun8i-r40.dtsi | 21 +++++++ drivers/net/can/sun4i_can.c | 61 ++++++++++++++++++- 3 files changed, 105 insertions(+), 1 deletion(-) -- 2.25.1
