riscv: dts: allwinner: d1: Add CAN controller nodes

The Allwinner D1, T113 provide two CAN controllers that are variants
of the R40 controller.

I have tested support for these controllers on two boards:

- A Lichee Panel RV 86 Panel running a D1 chip
- A Mango Pi MQ Dual running a T113-s3 chip

Both of these fully support both CAN controllers.

Signed-off-by: John Watts <contact@jookia.org>
Link: https://lore.kernel.org/all/20230721221552.1973203-4-contact@jookia.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

1 files changed, 30 insertions, 0 deletions

diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
index 1bb1e5cae602..4086c0cc0f9d 100644
--- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
+++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
@@ -131,6 +131,18 @@
 				pins = "PB6", "PB7";
 				function = "uart3";
 			};
+
+			/omit-if-no-ref/
+			can0_pins: can0-pins {
+				pins = "PB2", "PB3";
+				function = "can0";
+			};
+
+			/omit-if-no-ref/
+			can1_pins: can1-pins {
+				pins = "PB4", "PB5";
+				function = "can1";
+			};
 		};
 
 		ccu: clock-controller@2001000 {
@@ -879,5 +891,23 @@
 			clock-names = "bus", "hosc", "ahb";
 			#clock-cells = <1>;
 		};
+
+		can0: can@2504000 {
+			compatible = "allwinner,sun20i-d1-can";
+			reg = <0x02504000 0x400>;
+			interrupts = <SOC_PERIPHERAL_IRQ(21) IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_CAN0>;
+			resets = <&ccu RST_BUS_CAN0>;
+			status = "disabled";
+		};
+
+		can1: can@2504400 {
+			compatible = "allwinner,sun20i-d1-can";
+			reg = <0x02504400 0x400>;
+			interrupts = <SOC_PERIPHERAL_IRQ(22) IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_CAN1>;
+			resets = <&ccu RST_BUS_CAN1>;
+			status = "disabled";
+		};
 	};
 };