diff --git a/cpu/arm920t/at91rm9200/i2c.c b/cpu/arm920t/at91rm9200/i2c.c
index 826cea8..90f95df 100644
--- a/cpu/arm920t/at91rm9200/i2c.c
+++ b/cpu/arm920t/at91rm9200/i2c.c
@@ -203,4 +203,14 @@
 	i2c_write(i2c_addr, reg, 1, &val, 1);
 }
 
+int i2c_set_bus_speed(unsigned int speed)
+{
+	return -1;
+}
+
+unsigned int i2c_get_bus_speed(void)
+{
+	return CFG_I2C_SPEED;
+}
+
 #endif /* CONFIG_HARD_I2C */