diff --git a/boards/frdm-k22f/include/periph_conf.h b/boards/frdm-k22f/include/periph_conf.h
index 35c91c351d..20fbf3c81c 100644
--- a/boards/frdm-k22f/include/periph_conf.h
+++ b/boards/frdm-k22f/include/periph_conf.h
@@ -224,9 +224,7 @@ static const spi_conf_t spi_config[] = {
 * @{
 */
 #define I2C_NUMOF                    (1U)
-#define I2C_CLK                      CLOCK_BUSCLOCK
 #define I2C_0_EN                     1
-#define I2C_IRQ_PRIO                 1
 /* Low (10 kHz): MUL = 2, SCL divider = 1536, total: 3072 */
 #define KINETIS_I2C_F_ICR_LOW        (0x36)
 #define KINETIS_I2C_F_MULT_LOW       (1)
@@ -255,13 +253,6 @@ static const spi_conf_t spi_config[] = {
 #define I2C_0_PORT_CFG               (PORT_PCR_MUX(I2C_0_PIN_AF) | PORT_PCR_ODE_MASK)
 /** @} */
 
-/**
- * @name GPIO configuration
- * @{
- */
-#define GPIO_IRQ_PRIO                CPU_DEFAULT_IRQ_PRIO
-/** @} */
-
 /**
 * @name RTT and RTC configuration
 * @{