diff --git a/drivers/mtd/spi/Makefile b/drivers/mtd/spi/Makefile
index f99f6cb..20db101 100644
--- a/drivers/mtd/spi/Makefile
+++ b/drivers/mtd/spi/Makefile
@@ -18,6 +18,6 @@
 endif
 
 obj-$(CONFIG_SPI_FLASH) += spi-nor.o
-obj-$(CONFIG_SPI_FLASH_DATAFLASH) += sf_dataflash.o sf.o
+obj-$(CONFIG_SPI_FLASH_DATAFLASH) += sf_dataflash.o
 obj-$(CONFIG_SPI_FLASH_MTD) += sf_mtd.o
 obj-$(CONFIG_SPI_FLASH_SANDBOX) += sandbox.o
diff --git a/drivers/mtd/spi/sf.c b/drivers/mtd/spi/sf.c
deleted file mode 100644
index ee3cf8b..0000000
--- a/drivers/mtd/spi/sf.c
+++ /dev/null
@@ -1,53 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * SPI flash interface
- *
- * Copyright (C) 2008 Atmel Corporation
- * Copyright (C) 2010 Reinhard Meyer, EMK Elektronik
- */
-
-#include <common.h>
-#include <spi.h>
-
-static int spi_flash_read_write(struct spi_slave *spi,
-				const u8 *cmd, size_t cmd_len,
-				const u8 *data_out, u8 *data_in,
-				size_t data_len)
-{
-	unsigned long flags = SPI_XFER_BEGIN;
-	int ret;
-
-	if (data_len == 0)
-		flags |= SPI_XFER_END;
-
-	ret = spi_xfer(spi, cmd_len * 8, cmd, NULL, flags);
-	if (ret) {
-		debug("SF: Failed to send command (%zu bytes): %d\n",
-		      cmd_len, ret);
-	} else if (data_len != 0) {
-		ret = spi_xfer(spi, data_len * 8, data_out, data_in,
-					SPI_XFER_END);
-		if (ret)
-			debug("SF: Failed to transfer %zu bytes of data: %d\n",
-			      data_len, ret);
-	}
-
-	return ret;
-}
-
-int spi_flash_cmd_read(struct spi_slave *spi, const u8 *cmd,
-		size_t cmd_len, void *data, size_t data_len)
-{
-	return spi_flash_read_write(spi, cmd, cmd_len, NULL, data, data_len);
-}
-
-int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len)
-{
-	return spi_flash_cmd_read(spi, &cmd, 1, response, len);
-}
-
-int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len,
-		const void *data, size_t data_len)
-{
-	return spi_flash_read_write(spi, cmd, cmd_len, data, NULL, data_len);
-}
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h
index a6bf734..ece6fbc 100644
--- a/drivers/mtd/spi/sf_internal.h
+++ b/drivers/mtd/spi/sf_internal.h
@@ -72,24 +72,6 @@
 #define JEDEC_MFR(info)	((info)->id[0])
 #define JEDEC_ID(info)		(((info)->id[1]) << 8 | ((info)->id[2]))
 
-/* Send a single-byte command to the device and read the response */
-int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len);
-
-/*
- * Send a multi-byte command to the device and read the response. Used
- * for flash array reads, etc.
- */
-int spi_flash_cmd_read(struct spi_slave *spi, const u8 *cmd,
-		size_t cmd_len, void *data, size_t data_len);
-
-/*
- * Send a multi-byte command to the device followed by (optional)
- * data. Used for programming the flash array, etc.
- */
-int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len,
-		const void *data, size_t data_len);
-
-
 /* Get software write-protect value (BP bits) */
 int spi_flash_cmd_get_sw_write_prot(struct spi_flash *flash);