zephyrproject-rtos · kartben · Nov 15, 2025 · Oct 28, 2025 · Oct 28, 2025 · Oct 28, 2025
diff --git a/boards/aithinker/ai_m62_12f/ai_m62_12f-pinctrl.dtsi b/boards/aithinker/ai_m62_12f/ai_m62_12f-pinctrl.dtsi
@@ -23,4 +23,13 @@
 			bias-high-impedance;
 		};
 	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			pinmux = <GPIO0_I2C0_SCL>,
+				 <GPIO1_I2C0_SDA>;
+			bias-pull-up;
+			input-schmitt-enable;
+		};
+	};
 };
diff --git a/boards/aithinker/ai_m62_12f/ai_m62_12f.dts b/boards/aithinker/ai_m62_12f/ai_m62_12f.dts
@@ -108,3 +108,11 @@
 &gpio0 {
 	status = "okay";
 };
+
+&i2c0 {
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_STANDARD>;
+
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+};
diff --git a/boards/aithinker/ai_m62_12f/ai_m62_12f.yaml b/boards/aithinker/ai_m62_12f/ai_m62_12f.yaml
@@ -18,4 +18,5 @@ supported:
   - pinctrl
   - uart
   - dma
+  - i2c
 vendor: bflb
diff --git a/boards/aithinker/ai_wb2_12f/ai_wb2_12f-pinctrl.dtsi b/boards/aithinker/ai_wb2_12f/ai_wb2_12f-pinctrl.dtsi
@@ -23,4 +23,13 @@
 			bias-high-impedance;
 		};
 	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			pinmux = <GPIO17_I2C_SDA>,
+				 <GPIO12_I2C_SCL>;
+			bias-pull-up;
+			input-schmitt-enable;
+		};
+	};
 };
diff --git a/boards/aithinker/ai_wb2_12f/ai_wb2_12f.dts b/boards/aithinker/ai_wb2_12f/ai_wb2_12f.dts
@@ -34,25 +34,26 @@
 		compatible = "gpio-leds";
 
 		blue_led: led_0 {
-			gpios =  <&gpio0 3 GPIO_ACTIVE_HIGH>;
+			gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
 			label = "Blue - LED0";
 		};
 
 		green_led: led_1 {
-			gpios =  <&gpio0 17 GPIO_ACTIVE_HIGH>;
+			gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>;
 			label = "Green - LED1";
 		};
 
 		red_led: led_2 {
-			gpios =  <&gpio0 14 GPIO_ACTIVE_HIGH>;
+			gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
 			label = "Red - LED2";
 		};
 	};
 
 	buttons {
 		compatible = "gpio-keys";
+
 		button_0: sw0 {
-			gpios = <&gpio0 8 (GPIO_ACTIVE_HIGH)>;
+			gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
 			zephyr,code = <INPUT_KEY_0>;
 		};
 	};
@@ -101,3 +102,11 @@
 &gpio0 {
 	status = "okay";
 };
+
+&i2c0 {
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_STANDARD>;
+
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+};
diff --git a/boards/aithinker/ai_wb2_12f/ai_wb2_12f.yaml b/boards/aithinker/ai_wb2_12f/ai_wb2_12f.yaml
@@ -18,4 +18,5 @@ supported:
   - pinctrl
   - uart
   - dma
+  - i2c
 vendor: bflb
diff --git a/boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit-pinctrl.dtsi b/boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit-pinctrl.dtsi
@@ -22,4 +22,13 @@
 			bias-high-impedance;
 		};
 	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			pinmux = <GPIO0_I2C_SCL>,
+				 <GPIO1_I2C_SDA>;
+			bias-pull-up;
+			input-schmitt-enable;
+		};
+	};
 };
diff --git a/boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit.dts b/boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit.dts
@@ -61,3 +61,11 @@
 	pinctrl-1 = <&uart0_sleep>;
 	pinctrl-names = "default", "sleep";
 };
+
+&i2c0 {
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_STANDARD>;
+
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+};
diff --git a/boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit.yaml b/boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit.yaml
@@ -17,4 +17,5 @@ supported:
   - pinctrl
   - uart
   - dma
+  - i2c
 vendor: doiting
diff --git a/drivers/i2c/CMakeLists.txt b/drivers/i2c/CMakeLists.txt
@@ -23,6 +23,7 @@ add_subdirectory_ifdef(CONFIG_I2C_TARGET target)
 # zephyr-keep-sorted-start
 zephyr_library_sources_ifdef(CONFIG_I2C_AMBIQ              i2c_ambiq.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_ANDES_ATCIIC100    i2c_andes_atciic100.c)
+zephyr_library_sources_ifdef(CONFIG_I2C_BFLB               i2c_bflb.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_CADENCE            i2c_cdns.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_CC13XX_CC26XX      i2c_cc13xx_cc26xx.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_CC23X0             i2c_cc23x0.c)

diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
@@ -122,6 +122,7 @@ source "drivers/i2c/Kconfig.ambiq"
 source "drivers/i2c/Kconfig.andes_atciic100"
 source "drivers/i2c/Kconfig.b91"
 source "drivers/i2c/Kconfig.bcm_iproc"
+source "drivers/i2c/Kconfig.bflb"
 source "drivers/i2c/Kconfig.cc13xx_cc26xx"
 source "drivers/i2c/Kconfig.cc23x0"
 source "drivers/i2c/Kconfig.cdns"

diff --git a/drivers/i2c/Kconfig.bflb b/drivers/i2c/Kconfig.bflb
@@ -0,0 +1,9 @@
+# Copyright (c) 2024-2025 MASSDRIVER EI (massdriver.space)
+# SPDX-License-Identifier: Apache-2.0
+
+config I2C_BFLB
+	bool "Bouffalolab I2C driver"
+	default y
+	depends on DT_HAS_BFLB_I2C_ENABLED
+	help
+	  I2C driver support for Bouffalolab platforms
-Original file line number
+Diff line change
@@ Expand Up / @@ -18,4 +18,5 @@ supported: @@
       - pinctrl
       - uart
       - dma
+      - i2c
     vendor: bflb