diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 18270b9de64f065dd583dadd8bf8b44acaafaeaa..a73b10b9c49f662c167276f3d97abcc7517e75dd 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -115,7 +115,7 @@ static uint8_t i2c_imx_get_clk(unsigned int rate)
 /*
  * Set I2C Bus speed
  */
-int bus_i2c_set_bus_speed(void *base, int speed)
+static int bus_i2c_set_bus_speed(void *base, int speed)
 {
 	struct mxc_i2c_regs *i2c_regs = (struct mxc_i2c_regs *)base;
 	u8 clk_idx = i2c_imx_get_clk(speed);
@@ -133,7 +133,7 @@ int bus_i2c_set_bus_speed(void *base, int speed)
 /*
  * Get I2C Speed
  */
-unsigned int bus_i2c_get_bus_speed(void *base)
+static unsigned int bus_i2c_get_bus_speed(void *base)
 {
 	struct mxc_i2c_regs *i2c_regs = (struct mxc_i2c_regs *)base;
 	u8 clk_idx = readb(&i2c_regs->ifdr);