diff --git a/drivers/mtd/spi/eon.c b/drivers/mtd/spi/eon.c
index 6a3bf0f..eccdf83 100644
--- a/drivers/mtd/spi/eon.c
+++ b/drivers/mtd/spi/eon.c
@@ -16,9 +16,6 @@
 
 struct eon_spi_flash_params {
 	u8 idcode1;
-	u16 page_size;
-	u16 pages_per_sector;
-	u16 sectors_per_block;
 	u16 nr_sectors;
 	const char *name;
 };
@@ -26,25 +23,16 @@
 static const struct eon_spi_flash_params eon_spi_flash_table[] = {
 	{
 		.idcode1 = 0x16,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_sectors = 1024,
 		.name = "EN25Q32B",
 	},
 	{
 		.idcode1 = 0x18,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_sectors = 4096,
 		.name = "EN25Q128",
 	},
 	{
 		.idcode1 = 0x16,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_sectors = 1024,
 		.name = "EN25Q32B",
 	},
@@ -84,10 +72,9 @@
 	flash->write = spi_flash_cmd_write_multi;
 	flash->erase = eon_erase;
 	flash->read = spi_flash_cmd_read_fast;
-	flash->page_size = params->page_size;
-	flash->sector_size = params->page_size * params->pages_per_sector
-	    * params->sectors_per_block;
-	flash->size = params->page_size * params->pages_per_sector
+	flash->page_size = 256;
+	flash->sector_size = 256 * 16 * 16;
+	flash->size = 256 * 16
 	    * params->nr_sectors;
 
 	return flash;
diff --git a/drivers/mtd/spi/macronix.c b/drivers/mtd/spi/macronix.c
index 87a3ad0..894b1ca 100644
--- a/drivers/mtd/spi/macronix.c
+++ b/drivers/mtd/spi/macronix.c
@@ -42,9 +42,6 @@
 
 struct macronix_spi_flash_params {
 	u16 idcode;
-	u16 page_size;
-	u16 pages_per_sector;
-	u16 sectors_per_block;
 	u16 nr_blocks;
 	const char *name;
 };
@@ -52,57 +49,36 @@
 static const struct macronix_spi_flash_params macronix_spi_flash_table[] = {
 	{
 		.idcode = 0x2013,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_blocks = 8,
 		.name = "MX25L4005",
 	},
 	{
 		.idcode = 0x2014,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_blocks = 16,
 		.name = "MX25L8005",
 	},
 	{
 		.idcode = 0x2015,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_blocks = 32,
 		.name = "MX25L1605D",
 	},
 	{
 		.idcode = 0x2016,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_blocks = 64,
 		.name = "MX25L3205D",
 	},
 	{
 		.idcode = 0x2017,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_blocks = 128,
 		.name = "MX25L6405D",
 	},
 	{
 		.idcode = 0x2018,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_blocks = 256,
 		.name = "MX25L12805D",
 	},
 	{
 		.idcode = 0x2618,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
 		.nr_blocks = 256,
 		.name = "MX25L12855E",
 	},
@@ -182,9 +158,8 @@
 	flash->write = spi_flash_cmd_write_multi;
 	flash->erase = macronix_erase;
 	flash->read = spi_flash_cmd_read_fast;
-	flash->page_size = params->page_size;
-	flash->sector_size = params->page_size * params->pages_per_sector
-		* params->sectors_per_block;
+	flash->page_size = 256;
+	flash->sector_size = 256 * 16 * 16;
 	flash->size = flash->sector_size * params->nr_blocks;
 
 	/* Clear BP# bits for read-only flash */
diff --git a/drivers/mtd/spi/spansion.c b/drivers/mtd/spi/spansion.c
index 457cc06..bedde07 100644
--- a/drivers/mtd/spi/spansion.c
+++ b/drivers/mtd/spi/spansion.c
@@ -38,7 +38,6 @@
 struct spansion_spi_flash_params {
 	u16 idcode1;
 	u16 idcode2;
-	u16 page_size;
 	u16 pages_per_sector;
 	u16 nr_sectors;
 	const char *name;
@@ -48,7 +47,6 @@
 	{
 		.idcode1 = 0x0213,
 		.idcode2 = 0,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 16,
 		.name = "S25FL008A",
@@ -56,7 +54,6 @@
 	{
 		.idcode1 = 0x0214,
 		.idcode2 = 0,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 32,
 		.name = "S25FL016A",
@@ -64,7 +61,6 @@
 	{
 		.idcode1 = 0x0215,
 		.idcode2 = 0,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 64,
 		.name = "S25FL032A",
@@ -72,7 +68,6 @@
 	{
 		.idcode1 = 0x0216,
 		.idcode2 = 0,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 128,
 		.name = "S25FL064A",
@@ -80,7 +75,6 @@
 	{
 		.idcode1 = 0x2018,
 		.idcode2 = 0x0301,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 256,
 		.name = "S25FL128P_64K",
@@ -88,7 +82,6 @@
 	{
 		.idcode1 = 0x2018,
 		.idcode2 = 0x0300,
-		.page_size = 256,
 		.pages_per_sector = 1024,
 		.nr_sectors = 64,
 		.name = "S25FL128P_256K",
@@ -96,7 +89,6 @@
 	{
 		.idcode1 = 0x0215,
 		.idcode2 = 0x4d00,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 64,
 		.name = "S25FL032P",
@@ -104,7 +96,6 @@
 	{
 		.idcode1 = 0x2018,
 		.idcode2 = 0x4d01,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 256,
 		.name = "S25FL129P_64K",
@@ -151,8 +142,8 @@
 	flash->write = spi_flash_cmd_write_multi;
 	flash->erase = spansion_erase;
 	flash->read = spi_flash_cmd_read_fast;
-	flash->page_size = params->page_size;
-	flash->sector_size = params->page_size * params->pages_per_sector;
+	flash->page_size = 256;
+	flash->sector_size = 256 * params->pages_per_sector;
 	flash->size = flash->sector_size * params->nr_sectors;
 
 	return flash;
diff --git a/drivers/mtd/spi/stmicro.c b/drivers/mtd/spi/stmicro.c
index 5b68479..6f7b807 100644
--- a/drivers/mtd/spi/stmicro.c
+++ b/drivers/mtd/spi/stmicro.c
@@ -40,7 +40,6 @@
 
 struct stmicro_spi_flash_params {
 	u8 idcode1;
-	u16 page_size;
 	u16 pages_per_sector;
 	u16 nr_sectors;
 	const char *name;
@@ -49,56 +48,48 @@
 static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = {
 	{
 		.idcode1 = 0x11,
-		.page_size = 256,
 		.pages_per_sector = 128,
 		.nr_sectors = 4,
 		.name = "M25P10",
 	},
 	{
 		.idcode1 = 0x15,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 32,
 		.name = "M25P16",
 	},
 	{
 		.idcode1 = 0x12,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 4,
 		.name = "M25P20",
 	},
 	{
 		.idcode1 = 0x16,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 64,
 		.name = "M25P32",
 	},
 	{
 		.idcode1 = 0x13,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 8,
 		.name = "M25P40",
 	},
 	{
 		.idcode1 = 0x17,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 128,
 		.name = "M25P64",
 	},
 	{
 		.idcode1 = 0x14,
-		.page_size = 256,
 		.pages_per_sector = 256,
 		.nr_sectors = 16,
 		.name = "M25P80",
 	},
 	{
 		.idcode1 = 0x18,
-		.page_size = 256,
 		.pages_per_sector = 1024,
 		.nr_sectors = 64,
 		.name = "M25P128",
@@ -153,8 +144,8 @@
 	flash->write = spi_flash_cmd_write_multi;
 	flash->erase = stmicro_erase;
 	flash->read = spi_flash_cmd_read_fast;
-	flash->page_size = params->page_size;
-	flash->sector_size = params->page_size * params->pages_per_sector;
+	flash->page_size = 256;
+	flash->sector_size = 256 * params->pages_per_sector;
 	flash->size = flash->sector_size * params->nr_sectors;
 
 	return flash;
diff --git a/drivers/mtd/spi/winbond.c b/drivers/mtd/spi/winbond.c
index 0e126f4..d1358ea 100644
--- a/drivers/mtd/spi/winbond.c
+++ b/drivers/mtd/spi/winbond.c
@@ -17,10 +17,6 @@
 
 struct winbond_spi_flash_params {
 	uint16_t	id;
-	/* Log2 of page size in power-of-two mode */
-	uint8_t		l2_page_size;
-	uint16_t	pages_per_sector;
-	uint16_t	sectors_per_block;
 	uint16_t	nr_blocks;
 	const char	*name;
 };
@@ -28,73 +24,46 @@
 static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {
 	{
 		.id			= 0x3013,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 8,
 		.name			= "W25X40",
 	},
 	{
 		.id			= 0x3015,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 32,
 		.name			= "W25X16",
 	},
 	{
 		.id			= 0x3016,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 64,
 		.name			= "W25X32",
 	},
 	{
 		.id			= 0x3017,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 128,
 		.name			= "W25X64",
 	},
 	{
 		.id			= 0x4014,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 16,
 		.name			= "W25Q80BL",
 	},
 	{
 		.id			= 0x4015,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 32,
 		.name			= "W25Q16",
 	},
 	{
 		.id			= 0x4016,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 64,
 		.name			= "W25Q32",
 	},
 	{
 		.id			= 0x4017,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 128,
 		.name			= "W25Q64",
 	},
 	{
 		.id			= 0x4018,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
 		.nr_blocks		= 256,
 		.name			= "W25Q128",
 	},
@@ -110,7 +79,6 @@
 	const struct winbond_spi_flash_params *params;
 	struct spi_flash *flash;
 	unsigned int i;
-	unsigned page_size;
 
 	for (i = 0; i < ARRAY_SIZE(winbond_spi_flash_table); i++) {
 		params = &winbond_spi_flash_table[i];
@@ -133,17 +101,12 @@
 	flash->spi = spi;
 	flash->name = params->name;
 
-	/* Assuming power-of-two page size initially. */
-	page_size = 1 << params->l2_page_size;
-
 	flash->write = spi_flash_cmd_write_multi;
 	flash->erase = winbond_erase;
 	flash->read = spi_flash_cmd_read_fast;
-	flash->page_size = page_size;
-	flash->sector_size = page_size * params->pages_per_sector;
-	flash->size = page_size * params->pages_per_sector
-				* params->sectors_per_block
-				* params->nr_blocks;
+	flash->page_size = 4096;
+	flash->sector_size = 4096;
+	flash->size = 4096 * 16 * params->nr_blocks;
 
 	return flash;
 }