diff --git a/boards/cc2538dk/include/periph_conf.h b/boards/cc2538dk/include/periph_conf.h
index a0a744fe27..4f020a128f 100644
--- a/boards/cc2538dk/include/periph_conf.h
+++ b/boards/cc2538dk/include/periph_conf.h
@@ -84,23 +84,17 @@ static const uart_conf_t uart_config[] = {
  * @name I2C configuration
  * @{
  */
-#define I2C_NUMOF               1
-#define I2C_0_EN                1
 #define I2C_IRQ_PRIO            1
 
-/* I2C 0 device configuration */
-#define I2C_0_DEV               0
-#define I2C_0_IRQ               I2C_IRQn
-#define I2C_0_IRQ_HANDLER       isr_i2c
-#define I2C_0_SCL_PIN           GPIO_PA2 /* SPI_SCK on the SmartRF06 baseboard */
-#define I2C_0_SDA_PIN           GPIO_PA4 /* SPI_MOSI on the SmartRF06 baseboard */
-
-static const i2c_conf_t i2c_config[I2C_NUMOF] = {
+static const i2c_conf_t i2c_config[] = {
     {
-        .scl_pin = GPIO_PA2, /* SPI_SCK on the SmartRF06 baseboard */
-        .sda_pin = GPIO_PA4, /* SPI_MOSI on the SmartRF06 baseboard */
+        .speed = I2C_SPEED_FAST,    /**< bus speed */
+        .scl_pin = GPIO_PIN(0, 2),  /**< GPIO_PA2, SPI_SCK  on SmartRF06 */
+        .sda_pin = GPIO_PIN(0, 4)   /**< GPIO_PA4, SPI_MOSI on SmartRF06 */
     },
 };
+
+#define I2C_NUMOF               (sizeof(i2c_config) / sizeof(i2c_config[0]))
 /** @} */
 
 /**
diff --git a/boards/openmote-cc2538/include/periph_conf.h b/boards/openmote-cc2538/include/periph_conf.h
index c63c52c122..912c8bbf5a 100644
--- a/boards/openmote-cc2538/include/periph_conf.h
+++ b/boards/openmote-cc2538/include/periph_conf.h
@@ -107,23 +107,17 @@ static const uart_conf_t uart_config[] = {
  * @name    I2C configuration
  * @{
  */
-#define I2C_NUMOF               1
-#define I2C_0_EN                1
 #define I2C_IRQ_PRIO            1
 
-/* I2C 0 device configuration */
-#define I2C_0_DEV               0
-#define I2C_0_IRQ               I2C_IRQn
-#define I2C_0_IRQ_HANDLER       isr_i2c
-#define I2C_0_SCL_PIN           GPIO_PB3 /* OpenBattery */
-#define I2C_0_SDA_PIN           GPIO_PB4 /* OpenBattery */
-
-static const i2c_conf_t i2c_config[I2C_NUMOF] = {
+static const i2c_conf_t i2c_config[] = {
     {
-        .scl_pin = GPIO_PB3, /* OpenBattery */
-        .sda_pin = GPIO_PB4, /* OpenBattery */
+        .speed = I2C_SPEED_FAST,    /**< bus speed */
+        .scl_pin = GPIO_PIN(1, 3),  /**< GPIO_PB3, OpenBattery */
+        .sda_pin = GPIO_PIN(1, 4)   /**< GPIO_PB4, OpenBattery */
     },
 };
+
+#define I2C_NUMOF               (sizeof(i2c_config) / sizeof(i2c_config[0]))
 /** @} */
 
 /**
diff --git a/boards/remote-pa/include/periph_conf.h b/boards/remote-pa/include/periph_conf.h
index e3a15a19ec..c5fe4f3db7 100644
--- a/boards/remote-pa/include/periph_conf.h
+++ b/boards/remote-pa/include/periph_conf.h
@@ -32,23 +32,17 @@
  * @name    I2C configuration
  * @{
  */
-#define I2C_NUMOF               1
-#define I2C_0_EN                1
 #define I2C_IRQ_PRIO            1
 
-/* I2C 0 device configuration */
-#define I2C_0_DEV               0
-#define I2C_0_IRQ               I2C_IRQn
-#define I2C_0_IRQ_HANDLER       isr_i2c
-#define I2C_0_SCL_PIN           GPIO_PB1
-#define I2C_0_SDA_PIN           GPIO_PB0
-
-static const i2c_conf_t i2c_config[I2C_NUMOF] = {
+static const i2c_conf_t i2c_config[] = {
     {
-        .scl_pin = I2C_0_SCL_PIN,
-        .sda_pin = I2C_0_SDA_PIN,
+        .speed = I2C_SPEED_FAST,    /**< bus speed */
+        .scl_pin = GPIO_PIN(1, 1),  /**< GPIO_PB1 */
+        .sda_pin = GPIO_PIN(1, 0)   /**< GPIO_PB0 */
     },
 };
+
+#define I2C_NUMOF               (sizeof(i2c_config) / sizeof(i2c_config[0]))
 /** @} */
 
 /**
diff --git a/boards/remote-reva/include/periph_conf.h b/boards/remote-reva/include/periph_conf.h
index cd1b6e0245..ebec0f3207 100644
--- a/boards/remote-reva/include/periph_conf.h
+++ b/boards/remote-reva/include/periph_conf.h
@@ -32,23 +32,17 @@
  * @name I2C configuration
  * @{
  */
-#define I2C_NUMOF               1
-#define I2C_0_EN                1
 #define I2C_IRQ_PRIO            1
 
-/* I2C 0 device configuration */
-#define I2C_0_DEV               0
-#define I2C_0_IRQ               I2C_IRQn
-#define I2C_0_IRQ_HANDLER       isr_i2c
-#define I2C_0_SCL_PIN           GPIO_PC3
-#define I2C_0_SDA_PIN           GPIO_PC2
-
-static const i2c_conf_t i2c_config[I2C_NUMOF] = {
+static const i2c_conf_t i2c_config[] = {
     {
-        .scl_pin = I2C_0_SCL_PIN,
-        .sda_pin = I2C_0_SDA_PIN,
+        .speed = I2C_SPEED_FAST,    /**< bus speed */
+        .scl_pin = GPIO_PIN(2, 3),  /**< GPIO_PC3 */
+        .sda_pin = GPIO_PIN(2, 2)   /**< GPIO_PC2 */
     },
 };
+
+#define I2C_NUMOF               (sizeof(i2c_config) / sizeof(i2c_config[0]))
 /** @} */
 
 /**
diff --git a/boards/remote-revb/include/periph_conf.h b/boards/remote-revb/include/periph_conf.h
index b5eb53a387..07e6a15479 100644
--- a/boards/remote-revb/include/periph_conf.h
+++ b/boards/remote-revb/include/periph_conf.h
@@ -35,23 +35,17 @@
  * @name I2C configuration
  * @{
  */
-#define I2C_NUMOF               1
-#define I2C_0_EN                1
 #define I2C_IRQ_PRIO            1
 
-/* I2C 0 device configuration */
-#define I2C_0_DEV               0
-#define I2C_0_IRQ               I2C_IRQn
-#define I2C_0_IRQ_HANDLER       isr_i2c
-#define I2C_0_SCL_PIN           GPIO_PC3
-#define I2C_0_SDA_PIN           GPIO_PC2
-
-static const i2c_conf_t i2c_config[I2C_NUMOF] = {
+static const i2c_conf_t i2c_config[] = {
     {
-        .scl_pin = I2C_0_SCL_PIN,
-        .sda_pin = I2C_0_SDA_PIN,
+        .speed = I2C_SPEED_FAST,    /**< bus speed */
+        .scl_pin = GPIO_PIN(2, 3),  /**< GPIO_PC3 */
+        .sda_pin = GPIO_PIN(2, 2)   /**< GPIO_PC2 */
     },
 };
+
+#define I2C_NUMOF               (sizeof(i2c_config) / sizeof(i2c_config[0]))
 /** @} */
 
 /**