diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-sysmocom.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-sysmocom.c
index 32e77c3..1ee15da 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-sysmocom.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-sysmocom.c
@@ -10,6 +10,10 @@
 
 #include <asm/mach-ath79/ath79.h>
 #include <asm/mach-ath79/ar71xx_regs.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/i2c-gpio.h>
+#include <linux/platform_device.h>
 #include "common.h"
 #include "dev-eth.h"
 #include "dev-gpio-buttons.h"
@@ -24,6 +28,12 @@
 #define SYSMOCOM_GPIO_LED_ETH0		13
 #define SYSMOCOM_GPIO_LED_PSE		15
 
+#define SYSMOCOM_SOB_AP1_GPIO_I2C_SDA 18
+#define SYSMOCOM_SOB_AP1_GPIO_I2C_SCL 19
+
+#define SYSMOCOM_SOB_AP2_GPIO_I2C_SDA 26
+#define SYSMOCOM_SOB_AP2_GPIO_I2C_SCL 27
+
 #define SYSMOCOM_MAC0_OFFSET			0x0000
 #define SYSMOCOM_MAC1_OFFSET			0x0006
 #define SYSMOCOM_CALDATA_OFFSET			0x1000
@@ -65,6 +75,43 @@ static struct gpio_led sysmocom_sob_jb02_leds_gpio[] __initdata = {
 	}
 };
 
+static struct i2c_gpio_platform_data sob_ap1_i2c_gpio_data = {
+	.sda_pin	= SYSMOCOM_SOB_AP1_GPIO_I2C_SDA,
+	.scl_pin	= SYSMOCOM_SOB_AP1_GPIO_I2C_SCL,
+	.udelay		= 20,
+};
+
+static struct i2c_gpio_platform_data sob_ap2_i2c_gpio_data = {
+	.sda_pin	= SYSMOCOM_SOB_AP2_GPIO_I2C_SDA,
+	.scl_pin	= SYSMOCOM_SOB_AP2_GPIO_I2C_SCL,
+	.udelay		= 20,
+};
+
+static struct platform_device sob_ap1_i2c_gpio_device = {
+	.name		= "i2c-gpio",
+	.id		= 0,
+	.dev = {
+		.platform_data = &sob_ap1_i2c_gpio_data,
+	}
+};
+
+static struct platform_device sob_ap2_i2c_gpio_device = {
+	.name		= "i2c-gpio",
+	.id		= 0,
+	.dev = {
+		.platform_data = &sob_ap2_i2c_gpio_data,
+	}
+};
+
+static struct i2c_board_info sob_ap_i2c_devs[] __initdata = {
+	{
+		I2C_BOARD_INFO("apds9300", 0x29),
+	}, {
+		I2C_BOARD_INFO("lm75b", 0x48),
+	}, {
+		I2C_BOARD_INFO("24c00", 0x50),
+	},
+};
 
 static void __init sysmocom_common_setup(void)
 {
@@ -94,6 +141,10 @@ static void __init sysmocom_sob_ap1_setup(void)
 	ath79_register_leds_gpio(-1, ARRAY_SIZE(sysmocom_sob_ap1_leds_gpio),
 				 sysmocom_sob_ap1_leds_gpio);
 	ath79_register_usb();
+
+	platform_device_register(&sob_ap1_i2c_gpio_device);
+	i2c_register_board_info(0, sob_ap_i2c_devs,
+				ARRAY_SIZE(sob_ap_i2c_devs));
 }
 
 static void __init sysmocom_sob_ap2_setup(void)
@@ -127,6 +178,9 @@ static void __init sysmocom_sob_ap2_setup(void)
 		       ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP) |
 		       AR933X_BOOTSTRAP_MDIO_GPIO_EN);
 
+	platform_device_register(&sob_ap2_i2c_gpio_device);
+	i2c_register_board_info(0, sob_ap_i2c_devs,
+				ARRAY_SIZE(sob_ap_i2c_devs));
 }
 
 static void __init sysmocom_sob_jb02_setup(void)