diff --git a/build/boards/cv181x/cv1813h_milkv_duos_emmc/u-boot/cvi_board_init.c b/build/boards/cv181x/cv1813h_milkv_duos_emmc/u-boot/cvi_board_init.c
index 352bf47891..508fac5bbe 100644
--- a/build/boards/cv181x/cv1813h_milkv_duos_emmc/u-boot/cvi_board_init.c
+++ b/build/boards/cv181x/cv1813h_milkv_duos_emmc/u-boot/cvi_board_init.c
@@ -11,8 +11,8 @@ int cvi_board_init(void)
 	PINMUX_CONFIG(IIC0_SDA, XGPIOA_29);
 
 	// I2C4
-	PINMUX_CONFIG(VIVO_D1, IIC4_SCL);
-	PINMUX_CONFIG(VIVO_D0, IIC4_SDA);
+	//PINMUX_CONFIG(VIVO_D1, IIC4_SCL);
+	//PINMUX_CONFIG(VIVO_D0, IIC4_SDA);
 
 	// USB
 	PINMUX_CONFIG(USB_VBUS_EN, XGPIOB_5);
@@ -24,5 +24,11 @@ int cvi_board_init(void)
 	PINMUX_CONFIG(UART2_CTS, UART4_CTS);
 	PINMUX_CONFIG(UART2_RTS, UART4_RTS);
 
+	// GPIOs
+	PINMUX_CONFIG(JTAG_CPU_TCK, XGPIOA_18);
+	PINMUX_CONFIG(JTAG_CPU_TMS, XGPIOA_19);
+	PINMUX_CONFIG(JTAG_CPU_TRST, XGPIOA_20);
+	PINMUX_CONFIG(IIC0_SCL, XGPIOA_28);
+
 	return 0;
 }
diff --git a/build/boards/cv181x/cv1813h_milkv_duos_sd/u-boot/cvi_board_init.c b/build/boards/cv181x/cv1813h_milkv_duos_sd/u-boot/cvi_board_init.c
index 352bf47891..508fac5bbe 100644
--- a/build/boards/cv181x/cv1813h_milkv_duos_sd/u-boot/cvi_board_init.c
+++ b/build/boards/cv181x/cv1813h_milkv_duos_sd/u-boot/cvi_board_init.c
@@ -11,8 +11,8 @@ int cvi_board_init(void)
 	PINMUX_CONFIG(IIC0_SDA, XGPIOA_29);
 
 	// I2C4
-	PINMUX_CONFIG(VIVO_D1, IIC4_SCL);
-	PINMUX_CONFIG(VIVO_D0, IIC4_SDA);
+	//PINMUX_CONFIG(VIVO_D1, IIC4_SCL);
+	//PINMUX_CONFIG(VIVO_D0, IIC4_SDA);
 
 	// USB
 	PINMUX_CONFIG(USB_VBUS_EN, XGPIOB_5);
@@ -24,5 +24,11 @@ int cvi_board_init(void)
 	PINMUX_CONFIG(UART2_CTS, UART4_CTS);
 	PINMUX_CONFIG(UART2_RTS, UART4_RTS);
 
+	// GPIOs
+	PINMUX_CONFIG(JTAG_CPU_TCK, XGPIOA_18);
+	PINMUX_CONFIG(JTAG_CPU_TMS, XGPIOA_19);
+	PINMUX_CONFIG(JTAG_CPU_TRST, XGPIOA_20);
+	PINMUX_CONFIG(IIC0_SCL, XGPIOA_28);
+
 	return 0;
 }
diff --git a/device/milkv-duos-sd/overlay/usr/bin/duo-pinmux b/device/milkv-duos-sd/overlay/usr/bin/duo-pinmux
new file mode 100755
index 0000000000..a6e592d2aa
Binary files /dev/null and b/device/milkv-duos-sd/overlay/usr/bin/duo-pinmux differ