From 0d3c71cd37a3cb96a4e4fdc730a2161f283affac Mon Sep 17 00:00:00 2001
From: YoungSoo Shin <shinys000114@gmail.com>
Date: Mon, 26 Aug 2024 19:12:33 +0900
Subject: [PATCH] ODROID-M2: can: Add overlays for mcp2517fd

mcp2517 (CAN-FD Add-on board)
- MISO: 21
- MOSI: 19
- SCLK: 23
- CS0 : 24
- INT : 11

Signed-off-by: YoungSoo Shin <shinys000114@gmail.com>
Change-Id: I09d92b0b26e3858ea1bffa697edb67b8c0fed055
---
 .../dts/rockchip/overlays/odroidm2/Makefile   |  1 +
 .../rockchip/overlays/odroidm2/mcp2517fd.dts  | 51 +++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/overlays/odroidm2/mcp2517fd.dts

diff --git a/arch/arm64/boot/dts/rockchip/overlays/odroidm2/Makefile b/arch/arm64/boot/dts/rockchip/overlays/odroidm2/Makefile
index 171ad5cf8ce0..edce4210d0d4 100644
--- a/arch/arm64/boot/dts/rockchip/overlays/odroidm2/Makefile
+++ b/arch/arm64/boot/dts/rockchip/overlays/odroidm2/Makefile
@@ -13,6 +13,7 @@ dtbo-y += \
 	mcp2515.dtbo \
 	mcp2515_12mhz.dtbo \
 	mcp2515_16mhz.dtbo \
+	mcp2517fd.dtbo \
 	onewire.dtbo \
 	pwm15.dtbo \
 	pwm3.dtbo \
diff --git a/arch/arm64/boot/dts/rockchip/overlays/odroidm2/mcp2517fd.dts b/arch/arm64/boot/dts/rockchip/overlays/odroidm2/mcp2517fd.dts
new file mode 100644
index 000000000000..be176b6fb577
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlays/odroidm2/mcp2517fd.dts
@@ -0,0 +1,51 @@
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	fragment@0 {
+		target = <&spi0>;
+
+		__overlay__ {
+			num_chipselect = <1>;
+			cs-gpios = <&gpio0 RK_PD5 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	fragment@1 {
+		target-path = "/";
+
+		__overlay__ {
+			can0_clk: can0_clk {
+				compatible = "fixed-clock";
+				#clock-cells = <0>;
+				clock-frequency = <20000000>;
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&spi0>;
+
+		__overlay__ {
+			status = "okay";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			mcp2517fd: canfd@0 {
+				compatible = "microchip,mcp2517fd";
+				pinctrl-names = "default";
+				pinctrl-0 = <&mcp251x_int_pins>;
+				reg = <0>;
+				clocks = <&can0_clk>;
+				interrupt-parent = <&gpio3>;
+				interrupts = <RK_PD4 IRQ_TYPE_EDGE_FALLING>;
+				spi-max-frequency = <10000000>;
+				status = "okay";
+			};
+		};
+	};
+};