Define properties for the I2C adapter, and enable it on the BPI-F3. It
will be used by the 24c02 eeprom.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
v2: Revert the name change for i2c2-0-cfg and i2c2-0-pins, the second cell
    is not a function number, but an index.

 arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts |  6 ++++++
 arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi    |  7 +++++++
 arch/riscv/boot/dts/spacemit/k1.dtsi            | 13 +++++++++++++
 3 files changed, 26 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
index 66375fd1e9974..3b6e4f52e9aad 100644
--- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
@@ -111,6 +111,12 @@ rgmii1: phy@1 {
 	};
 };
 
+&i2c2 {
+	pinctrl-0 = <&i2c2_0_cfg>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &i2c8 {
 	pinctrl-0 = <&i2c8_cfg>;
 	pinctrl-names = "default";
diff --git a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
index c9e9a844d2b1c..d565882c46dd7 100644
--- a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
@@ -92,6 +92,13 @@ gmac1-pins {
 		};
 	};
 
+	i2c2_0_cfg: i2c2-0-cfg {
+		i2c2-0-pins {
+			pinmux = <K1_PADCONF(84, 4)>,	/* I2C2_SCL */
+				 <K1_PADCONF(85, 4)>;	/* I2C2_SDA */
+		};
+	};
+
 	i2c8_cfg: i2c8-cfg {
 		i2c8-0-pins {
 			pinmux = <K1_PADCONF(93, 0)>,	/* PWR_SCL */
diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index bc61a380baca8..d4f38ded52c93 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -497,6 +497,19 @@ pwm7: pwm@d401bc00 {
 			status = "disabled";
 		};
 
+		i2c2: i2c@d4012000 {
+			compatible = "spacemit,k1-i2c";
+			reg = <0x0 0xd4012000 0x0 0x38>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&syscon_apbc CLK_TWSI2>,
+				 <&syscon_apbc CLK_TWSI2_BUS>;
+			clock-names = "func", "bus";
+			clock-frequency = <400000>;
+			interrupts = <38>;
+			status = "disabled";
+		};
+
 		i2c8: i2c@d401d800 {
 			compatible = "spacemit,k1-i2c";
 			reg = <0x0 0xd401d800 0x0 0x38>;
-- 
2.47.2