diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h
index 6b2ab7b..9aac0e8 100644
--- a/drivers/mtd/spi/sf_internal.h
+++ b/drivers/mtd/spi/sf_internal.h
@@ -98,12 +98,6 @@ int sst_write_bp(struct spi_flash *flash, u32 offset, size_t len,
 		const void *buf);
 #endif
 
-#ifdef CONFIG_SPI_FLASH_SPANSION
-/* Used for Spansion S25FS-S family flash only. */
-#define CMD_SPANSION_RDAR	0x65 /* Read any device register */
-#define CMD_SPANSION_WRAR	0x71 /* Write any device register */
-#endif
-
 #define JEDEC_MFR(info)		((info)->id[0])
 #define JEDEC_ID(info)		(((info)->id[1]) << 8 | ((info)->id[2]))
 #define JEDEC_EXT(info)		(((info)->id[3]) << 8 | ((info)->id[4]))
diff --git a/drivers/mtd/spi/sf_params.c b/drivers/mtd/spi/sf_params.c
index 6157e29..7b9e5ef 100644
--- a/drivers/mtd/spi/sf_params.c
+++ b/drivers/mtd/spi/sf_params.c
@@ -99,7 +99,7 @@ const struct spi_flash_info spi_flash_ids[] = {
 	{"S25FL256S_256K", INFO(0x010219, 0x4d00, 256 * 1024,   128, RD_FULL | WR_QPP) },
 	{"S25FL256S_64K",  INFO(0x010219, 0x4d01,  64 * 1024,   512, RD_FULL | WR_QPP) },
 	{"S25FS256S_64K",  INFO6(0x010219, 0x4d0181, 64 * 1024, 512, RD_FULL | WR_QPP | SECT_4K) },
-	{"S25FS512S",      INFO(0x010220, 0x4D00, 128 * 1024,   512, RD_FULL | WR_QPP) },
+	{"S25FS512S",      INFO(0x010220, 0x4D00, 128 * 1024,   512, RD_FULL | WR_QPP | SECT_4K) },
 	{"S25FL512S_256K", INFO(0x010220, 0x4d00, 256 * 1024,   256, RD_FULL | WR_QPP) },
 	{"S25FL512S_64K",  INFO(0x010220, 0x4d01,  64 * 1024,  1024, RD_FULL | WR_QPP) },
 	{"S25FL512S_512K", INFO(0x010220, 0x4f00, 256 * 1024,   256, RD_FULL | WR_QPP) },
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 9430424..b126a21 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -999,43 +999,6 @@ int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
 }
 #endif /* CONFIG_IS_ENABLED(OF_CONTROL) */
 
-#ifdef CONFIG_SPI_FLASH_SPANSION
-static int spansion_s25fss_disable_4KB_erase(struct spi_slave *spi)
-{
-	u8 cmd[4];
-	u32 offset = 0x800004; /* CR3V register offset */
-	u8 cr3v;
-	int ret;
-
-	cmd[0] = CMD_SPANSION_RDAR;
-	cmd[1] = offset >> 16;
-	cmd[2] = offset >> 8;
-	cmd[3] = offset >> 0;
-
-	ret = spi_flash_cmd_read(spi, cmd, 4, &cr3v, 1);
-	if (ret)
-		return -EIO;
-	/* CR3V bit3: 4-KB Erase */
-	if (cr3v & 0x8)
-		return 0;
-
-	cmd[0] = CMD_SPANSION_WRAR;
-	cr3v |= 0x8;
-	ret = spi_flash_cmd_write(spi, cmd, 4, &cr3v, 1);
-	if (ret)
-		return -EIO;
-
-	cmd[0] = CMD_SPANSION_RDAR;
-	ret = spi_flash_cmd_read(spi, cmd, 4, &cr3v, 1);
-	if (ret)
-		return -EIO;
-	if (!(cr3v & 0x8))
-		return -EFAULT;
-
-	return 0;
-}
-#endif
-
 int spi_flash_scan(struct spi_flash *flash)
 {
 	struct spi_slave *spi = flash->spi;
@@ -1046,48 +1009,6 @@ int spi_flash_scan(struct spi_flash *flash)
 	if (IS_ERR_OR_NULL(info))
 		return -ENOENT;
 
-#ifdef CONFIG_SPI_FLASH_SPANSION
-	/*
-	 * The S25FS-S family physical sectors may be configured as a
-	 * hybrid combination of eight 4-kB parameter sectors
-	 * at the top or bottom of the address space with all
-	 * but one of the remaining sectors being uniform size.
-	 * The Parameter Sector Erase commands (20h or 21h) must
-	 * be used to erase the 4-kB parameter sectors individually.
-	 * The Sector (uniform sector) Erase commands (D8h or DCh)
-	 * must be used to erase any of the remaining
-	 * sectors, including the portion of highest or lowest address
-	 * sector that is not overlaid by the parameter sectors.
-	 * The uniform sector erase command has no effect on parameter sectors.
-	 */
-	if ((JEDEC_ID(info) == 0x0219 || (JEDEC_ID(info) == 0x0220)) &&
-	    (JEDEC_EXT(info) & 0xff00) == 0x4d00) {
-		int ret;
-		u8 idcode[5];
-		u8 id[6];
-
-		/* Read the ID codes again, 5 bytes */
-		ret = spi_flash_cmd(flash->spi, CMD_READ_ID, idcode, sizeof(idcode));
-		if (ret)
-			return -EIO;
-
-		/* Read the ID codes again, 6 bytes */
-		ret = spi_flash_cmd(flash->spi, CMD_READ_ID, id, sizeof(id));
-		if (ret)
-			return -EIO;
-
-		ret = memcmp(id, idcode, 5);
-		if (ret)
-			return -EIO;
-
-		/* 0x81: S25FS-S family 0x80: S25FL-S family */
-		if (id[5] == 0x81) {
-			ret = spansion_s25fss_disable_4KB_erase(spi);
-			if (ret)
-				return ret;
-		}
-	}
-#endif
 	/* Flash powers up read-only, so clear BP# bits */
 	if (JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_ATMEL ||
 	    JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_MACRONIX ||