diff --git a/ports/psoc6/Makefile b/ports/psoc6/Makefile
index d185ce246884a..6db3c80162ba8 100644
--- a/ports/psoc6/Makefile
+++ b/ports/psoc6/Makefile
@@ -129,7 +129,6 @@ DRIVERS_SRC_C += $(addprefix drivers/,\
 
 DRIVERS_SRC_C += $(addprefix drivers/,\
 	machine/psoc6_gpio.c \
-	machine/psoc6_i2c.c \
 	machine/psoc6_pwm.c \
 	machine/psoc6_system.c  \
 	)
diff --git a/ports/psoc6/drivers/machine/psoc6_i2c.c b/ports/psoc6/drivers/machine/psoc6_i2c.c
deleted file mode 100644
index f8b3268f14e77..0000000000000
--- a/ports/psoc6/drivers/machine/psoc6_i2c.c
+++ /dev/null
@@ -1,43 +0,0 @@
-
-// std includes
-
-
-// mpy includes
-
-
-// MTB includes
-#include "cyhal.h"
-
-
-// port-specific includes
-#include "psoc6_i2c.h"
-
-
-cy_rslt_t i2c_init(machine_i2c_obj_t *machine_i2c_obj) {
-    // free first in case object has been initialized before
-    cyhal_i2c_free(&machine_i2c_obj->i2c_obj);
-
-    // Define the I2C master configuration structure
-    cyhal_i2c_cfg_t i2c_master_config =
-    {
-        CYHAL_I2C_MODE_MASTER,
-        0, // address is not used for master mode
-        machine_i2c_obj->freq
-    };
-
-    // Initialize I2C master, set the SDA and SCL pins and assign a new clock
-    cy_rslt_t result = cyhal_i2c_init(&machine_i2c_obj->i2c_obj, machine_i2c_obj->sda, machine_i2c_obj->scl, NULL);
-
-    return result == CY_RSLT_SUCCESS ? cyhal_i2c_configure(&machine_i2c_obj->i2c_obj, &i2c_master_config)
-                                     : result;
-}
-
-
-cy_rslt_t i2c_read(cyhal_i2c_t *i2c_obj, uint16_t addr, uint8_t *buf, size_t len, uint32_t timeout, bool send_stop) {
-    return cyhal_i2c_master_read(i2c_obj, addr, buf, len, timeout, send_stop);
-}
-
-
-cy_rslt_t i2c_write(cyhal_i2c_t *i2c_obj, uint16_t addr, uint8_t *buf, size_t len, uint32_t timeout, bool send_stop) {
-    return cyhal_i2c_master_write(i2c_obj, addr, buf, len, timeout, send_stop);
-}
diff --git a/ports/psoc6/drivers/machine/psoc6_i2c.h b/ports/psoc6/drivers/machine/psoc6_i2c.h
deleted file mode 100644
index 481e80c9bd513..0000000000000
--- a/ports/psoc6/drivers/machine/psoc6_i2c.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#ifndef MICROPY_INCLUDED_PSOC6_I2C_H
-#define MICROPY_INCLUDED_PSOC6_I2C_H
-
-
-// mpy includes
-#include "py/runtime.h"
-
-
-// MTB includes
-#include "cyhal.h"
-
-
-typedef struct _machine_i2c_obj_t {
-    mp_obj_base_t base;
-    cyhal_i2c_t i2c_obj;
-    uint8_t i2c_id;
-    uint8_t scl;
-    uint8_t sda;
-    uint32_t freq;
-} machine_i2c_obj_t;
-
-
-cy_rslt_t i2c_init(machine_i2c_obj_t *machine_i2c_obj);
-
-cy_rslt_t i2c_read(cyhal_i2c_t *i2c_obj, uint16_t addr, uint8_t *buf, size_t len, uint32_t timeout, bool send_stop);
-cy_rslt_t i2c_write(cyhal_i2c_t *i2c_obj, uint16_t addr, uint8_t *buf, size_t len, uint32_t timeout, bool send_stop);
-
-
-#endif // MICROPY_INCLUDED_PSOC6_I2C_H
diff --git a/ports/psoc6/modules/machine/machine_i2c.c b/ports/psoc6/modules/machine/machine_i2c.c
index 9b08c15ffee5d..2a5fa27168f00 100644
--- a/ports/psoc6/modules/machine/machine_i2c.c
+++ b/ports/psoc6/modules/machine/machine_i2c.c
@@ -15,17 +15,50 @@
 
 // port-specific includes
 #include "drivers/machine/psoc6_gpio.h"
-#include "drivers/machine/psoc6_i2c.h"
 #include "modmachine.h"
 #include "mplogger.h"
 #include "pins.h"
 
-
 #define DEFAULT_I2C_FREQ     (400000)
 #define MICROPY_HW_I2C_SCL   (CYBSP_I2C_SCL)
 #define MICROPY_HW_I2C_SDA   (CYBSP_I2C_SDA)
 #define PSOC_I2C_MASTER_MODE (CYHAL_I2C_MODE_MASTER)
 
+typedef struct _machine_i2c_obj_t {
+    mp_obj_base_t base;
+    cyhal_i2c_t i2c_obj;
+    uint8_t i2c_id;
+    uint8_t scl;
+    uint8_t sda;
+    uint32_t freq;
+} machine_i2c_obj_t;
+
+STATIC cy_rslt_t i2c_init(machine_i2c_obj_t *machine_i2c_obj) {
+    // free first in case object has been initialized before
+    cyhal_i2c_free(&machine_i2c_obj->i2c_obj);
+
+    // Define the I2C master configuration structure
+    cyhal_i2c_cfg_t i2c_master_config =
+    {
+        CYHAL_I2C_MODE_MASTER,
+        0, // address is not used for master mode
+        machine_i2c_obj->freq
+    };
+
+    // Initialize I2C master, set the SDA and SCL pins and assign a new clock
+    cy_rslt_t result = cyhal_i2c_init(&machine_i2c_obj->i2c_obj, machine_i2c_obj->sda, machine_i2c_obj->scl, NULL);
+
+    return result == CY_RSLT_SUCCESS ? cyhal_i2c_configure(&machine_i2c_obj->i2c_obj, &i2c_master_config)
+                                     : result;
+}
+
+STATIC cy_rslt_t i2c_read(cyhal_i2c_t *i2c_obj, uint16_t addr, uint8_t *buf, size_t len, uint32_t timeout, bool send_stop) {
+    return cyhal_i2c_master_read(i2c_obj, addr, buf, len, timeout, send_stop);
+}
+
+STATIC cy_rslt_t i2c_write(cyhal_i2c_t *i2c_obj, uint16_t addr, uint8_t *buf, size_t len, uint32_t timeout, bool send_stop) {
+    return cyhal_i2c_master_write(i2c_obj, addr, buf, len, timeout, send_stop);
+}
 
 extern mp_hal_pin_obj_t mp_hal_get_pin_obj(mp_obj_t obj);