boards: renesas: Add I2C support for Renesas RZ/A3UL, T2M, N2L, V2L

Add I2C support for board Renesas RZ/A3UL-SMARC,
RZ/T2M-RSK, RZ/N2L-RSK, RZ/V2L-SMARC

Signed-off-by: Phuc Pham <[email protected]>
Signed-off-by: Nhut Nguyen <[email protected]>

Author: Phuc Pham

boards/renesas/rza3ul_smarc/rza3ul_smarc-pinctrl.dtsi

@@ -15,4 +15,11 @@
 			slew-rate = "fast";
 		};
 	};
+
+	/omit-if-no-ref/ i2c1_pins: i2c1 {
+		i2c1-spins {
+			pins = <BSP_IO_RIIC1_SDA>, <BSP_IO_RIIC1_SCL>;
+			input-enable;
+		};
+	};
 };

boards/renesas/rza3ul_smarc/rza3ul_smarc.dts

@@ -67,3 +67,9 @@
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&i2c1 {
+	pinctrl-0 = <&i2c1_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};

boards/renesas/rza3ul_smarc/rza3ul_smarc.yaml

@@ -8,6 +8,7 @@ toolchain:
 supported:
   - uart
   - gpio
+  - i2c
 testing:
   ignore_tags:
     - bluetooth

boards/renesas/rzn2l_rsk/rzn2l_rsk-pinctrl.dtsi

@@ -41,4 +41,11 @@
 				 <RZN_PINMUX(PORT_04, 0, 3)>; /* GTIOCB */
 		};
 	};
+
+	/omit-if-no-ref/ i2c1_default: i2c1_default {
+		i2c1-pinmux {
+			pinmux = <RZN_PINMUX(PORT_05, 2, 8)>, /* SCL */
+				 <RZN_PINMUX(PORT_05, 3, 9)>; /* SDA */
+		};
+	};
 };

boards/renesas/rzn2l_rsk/rzn2l_rsk.dts

@@ -109,3 +109,9 @@
 &gpio5 {
 	status = "okay";
 };
+
+&i2c1 {
+	pinctrl-0 = <&i2c1_default>;
+	pinctrl-names = "default";
+	status = "okay";
+};

boards/renesas/rzn2l_rsk/rzn2l_rsk.yaml

@@ -8,4 +8,5 @@ supported:
   - uart
   - gpio
   - pwm
+  - i2c
 vendor: renesas

boards/renesas/rzt2m_rsk/rzt2m_rsk-pinctrl.dtsi

@@ -33,4 +33,11 @@
 				 <RZT_PINMUX(PORT_03, 6, 5)>; /* GTIOCB */
 		};
 	};
+
+	/omit-if-no-ref/ i2c1_default: i2c1_default {
+		i2c1-pinmux {
+			pinmux = <RZT_PINMUX(PORT_22, 6, 2)>, /* SCL */
+				 <RZT_PINMUX(PORT_22, 7, 2)>; /* SDA */
+		};
+	};
 };

boards/renesas/rzt2m_rsk/rzt2m_rsk_r9a07g075m24gbg_cr520.dts

@@ -86,6 +86,12 @@
 	status = "okay";
 };
 
+&i2c1 {
+	pinctrl-0 = <&i2c1_default>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &gpio10 {
 	irqs = <5 2>;
 	status = "okay";

boards/renesas/rzt2m_rsk/rzt2m_rsk_r9a07g075m24gbg_cr520.yaml

@@ -13,4 +13,5 @@ supported:
   - uart
   - gpio
   - pwm
+  - i2c
 vendor: renesas

boards/renesas/rzv2l_smarc/rzv2l_smarc-pinctrl.dtsi

@@ -25,4 +25,11 @@
 			pinmux = <RZV_PINMUX(PORT_41, 0, 2)>; /* GTIOCA */
 		};
 	};
+
+	/omit-if-no-ref/ i2c3_pins: i2c3 {
+		i2c3-pinmux {
+			pinmux = <RZV_PINMUX(PORT_18, 0, 3)>, /* SDA */
+				 <RZV_PINMUX(PORT_18, 1, 3)>; /* SCL */
+		};
+	};
 };