diff --git a/src/drivers/spi/adesto.c b/src/drivers/spi/adesto.c
index fd3c0a2..cfcde34 100644
--- a/src/drivers/spi/adesto.c
+++ b/src/drivers/spi/adesto.c
@@ -39,112 +39,78 @@
 #define CMD_AT25DF_DP		0xb9	/* Deep Power-down */
 #define CMD_AT25DF_RES		0xab	/* Release from DP, and Read Signature */
 
-struct adesto_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;
-};
-
-static const struct adesto_spi_flash_params adesto_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table[] = {
 	{
 		.id			= 0x4218,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 256,
 		.name			= "AT25SL128A",
+		.nr_sectors_shift	= 12,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4501,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 16,
 		.name			= "AT25DF081A", /* Yes, 81A id < 81 */
+		.nr_sectors_shift	= 8,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4502,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 16,
 		.name			= "AT25DF081",
+		.nr_sectors_shift	= 8,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4602,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "AT25DF161",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4603,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "AT25DL161",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4700,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 64,
 		.name			= "AT25DF321",
+		.nr_sectors_shift	= 10,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4701,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 64,
 		.name			= "AT25DF321A",
+		.nr_sectors_shift	= 10,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4800,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 128,
 		.name			= "AT25DF641",
+		.nr_sectors_shift	= 11,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x8501,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 16,
 		.name			= "AT25SF081",
+		.nr_sectors_shift	= 8,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x8600,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "AT25DQ161",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x8601,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "AT25SF161",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x8700,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 64,
 		.name			= "AT25DQ321",
+		.nr_sectors_shift	= 10,
+		.sector_size_kib_shift	= 2,
 	},
 };
 
@@ -158,16 +124,16 @@
 int spi_flash_probe_adesto(const struct spi_slave *spi, u8 *idcode,
 			   struct spi_flash *flash)
 {
-	const struct adesto_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(adesto_spi_flash_table); i++) {
-		params = &adesto_spi_flash_table[i];
+	for (i = 0; i < ARRAY_SIZE(flash_table); i++) {
+		params = &flash_table[i];
 		if (params->id == ((idcode[1] << 8) | idcode[2]))
 			break;
 	}
 
-	if (i == ARRAY_SIZE(adesto_spi_flash_table)) {
+	if (i == ARRAY_SIZE(flash_table)) {
 		printk(BIOS_WARNING, "SF: Unsupported adesto ID %02x%02x\n",
 				idcode[1], idcode[2]);
 		return -1;
@@ -176,10 +142,9 @@
 	memcpy(&flash->spi, spi, sizeof(*spi));
 	flash->name = params->name;
 	/* Assuming power-of-two page size initially. */
-	flash->page_size = 1 << params->l2_page_size;
-	flash->sector_size = flash->page_size * params->pages_per_sector;
-	flash->size = flash->sector_size *params->sectors_per_block *
-			params->nr_blocks;
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
 	flash->erase_cmd = CMD_AT25DF_SE;
 	flash->status_cmd = CMD_AT25DF_RDSR;
 	flash->pp_cmd = CMD_AT25DF_PP;
diff --git a/src/drivers/spi/amic.c b/src/drivers/spi/amic.c
index e30ed48..fb5bdea 100644
--- a/src/drivers/spi/amic.c
+++ b/src/drivers/spi/amic.c
@@ -34,88 +34,60 @@
 #define CMD_A25_DP		0xb9	/* Deep Power-down */
 #define CMD_A25_RES		0xab	/* Release from DP, and Read Signature */
 
-struct amic_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;
-};
-
-static const struct amic_spi_flash_params amic_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table[] = {
 	{
 		.id			= 0x2015,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "A25L16PU",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x2025,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "A25L16PT",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x3014,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 16,
 		.name			= "A25L080",
+		.nr_sectors_shift	= 8,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x3015,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "A25L016",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x3016,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 64,
 		.name			= "A25L032",
+		.nr_sectors_shift	= 10,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4014,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 16,
 		.name			= "A25LQ080",
+		.nr_sectors_shift	= 8,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4015,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "A25LQ16",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4016,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 64,
 		.name			= "A25LQ032",
+		.nr_sectors_shift	= 10,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4017,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 128,
 		.name			= "A25LQ64",
+		.nr_sectors_shift	= 11,
+		.sector_size_kib_shift	= 2,
 	},
 };
 
@@ -129,16 +101,16 @@
 int spi_flash_probe_amic(const struct spi_slave *spi, u8 *idcode,
 			 struct spi_flash *flash)
 {
-	const struct amic_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(amic_spi_flash_table); i++) {
-		params = &amic_spi_flash_table[i];
+	for (i = 0; i < ARRAY_SIZE(flash_table); i++) {
+		params = &flash_table[i];
 		if (params->id == ((idcode[1] << 8) | idcode[2]))
 			break;
 	}
 
-	if (i == ARRAY_SIZE(amic_spi_flash_table)) {
+	if (i == ARRAY_SIZE(flash_table)) {
 		printk(BIOS_WARNING, "SF: Unsupported AMIC ID %02x%02x\n",
 				idcode[1], idcode[2]);
 		return -1;
@@ -148,10 +120,9 @@
 	flash->name = params->name;
 
 	/* Assuming power-of-two page size initially. */
-	flash->page_size = 1 << params->l2_page_size;
-	flash->sector_size = flash->page_size * params->pages_per_sector;
-	flash->size = flash->sector_size * params->sectors_per_block *
-			params->nr_blocks;
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
 	flash->erase_cmd = CMD_A25_SE;
 	flash->status_cmd = CMD_A25_RDSR;
 	flash->pp_cmd = CMD_A25_PP;
diff --git a/src/drivers/spi/atmel.c b/src/drivers/spi/atmel.c
index ad9e75b..a494844 100644
--- a/src/drivers/spi/atmel.c
+++ b/src/drivers/spi/atmel.c
@@ -34,72 +34,48 @@
 #define CMD_AT25_DP			0xb9	/* Deep Power-down */
 #define CMD_AT25_RES		0xab	/* Release from DP, and Read Signature */
 
-struct atmel_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;
-};
-
-static const struct atmel_spi_flash_params atmel_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table[] = {
 	{
 		.id			= 0x3015,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "AT25X16",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x47,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 64,
 		.name			= "AT25DF32",
+		.nr_sectors_shift	= 10,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x3017,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 128,
 		.name			= "AT25X64",
+		.nr_sectors_shift	= 11,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4015,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 32,
 		.name			= "AT25Q16",
+		.nr_sectors_shift	= 9,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4016,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 64,
 		.name			= "AT25Q32",
+		.nr_sectors_shift	= 10,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4017,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 128,
 		.name			= "AT25Q64",
+		.nr_sectors_shift	= 11,
+		.sector_size_kib_shift	= 2,
 	},
 	{
 		.id			= 0x4018,
-		.l2_page_size		= 8,
-		.pages_per_sector	= 16,
-		.sectors_per_block	= 16,
-		.nr_blocks		= 256,
 		.name			= "AT25Q128",
+		.nr_sectors_shift	= 12,
+		.sector_size_kib_shift	= 2,
 	},
 };
 
@@ -113,16 +89,16 @@
 int spi_flash_probe_atmel(const struct spi_slave *spi, u8 *idcode,
 			  struct spi_flash *flash)
 {
-	const struct atmel_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(atmel_spi_flash_table); i++) {
-		params = &atmel_spi_flash_table[i];
+	for (i = 0; i < ARRAY_SIZE(flash_table); i++) {
+		params = &flash_table[i];
 		if (params->id == ((idcode[1] << 8) | idcode[2]))
 			break;
 	}
 
-	if (i == ARRAY_SIZE(atmel_spi_flash_table)) {
+	if (i == ARRAY_SIZE(flash_table)) {
 		printk(BIOS_WARNING, "SF: Unsupported Atmel ID %02x%02x\n",
 				idcode[1], idcode[2]);
 		return -1;
@@ -132,10 +108,9 @@
 	flash->name = params->name;
 
 	/* Assuming power-of-two page size initially. */
-	flash->page_size = 1 << params->l2_page_size;
-	flash->sector_size = flash->page_size * params->pages_per_sector;
-	flash->size = flash->sector_size * params->sectors_per_block *
-			params->nr_blocks;
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
 	flash->erase_cmd = CMD_AT25_SE;
 	flash->status_cmd = CMD_AT25_RDSR;
 	flash->pp_cmd = CMD_AT25_PP;
diff --git a/src/drivers/spi/eon.c b/src/drivers/spi/eon.c
index b2c7ddc..3270c39 100644
--- a/src/drivers/spi/eon.c
+++ b/src/drivers/spi/eon.c
@@ -55,183 +55,132 @@
 #define EON_ID_EN25S32		0x3816
 #define EON_ID_EN25S64		0x3817
 
-struct eon_spi_flash_params {
-	u16 id;
-	u16 page_size;
-	u16 pages_per_sector;
-	u16 sectors_per_block;
-	u16 nr_sectors;
-	const char *name;
-};
-
-static const struct eon_spi_flash_params eon_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table[] = {
 	{
 		.id = EON_ID_EN25B80,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 256,
 		.name = "EN25B80",
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25B16,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 512,
 		.name = "EN25B16",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25B32,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 1024,
 		.name = "EN25B32",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25B64,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 2048,
 		.name = "EN25B64",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25F80,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 256,
 		.name = "EN25F80",
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25F16,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 512,
 		.name = "EN25F16",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25F32,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 1024,
 		.name = "EN25F32",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25F64,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 2048,
 		.name = "EN25F64",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25Q80,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 256,
 		.name = "EN25Q80(A)",
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25Q16,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 512,
 		.name = "EN25Q16(D16)",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25Q32,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 1024,
 		.name = "EN25Q32(A/B)",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25Q64,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 2048,
 		.name = "EN25Q64",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25Q128,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 4096,
 		.name = "EN25Q128",
+		.nr_sectors_shift = 12,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25QH16,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 512,
 		.name = "EN25QH16",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25QH32,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 1024,
 		.name = "EN25QH32",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25QH64,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 2048,
 		.name = "EN25QH64",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25QH128,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 4096,
 		.name = "EN25QH128",
+		.nr_sectors_shift = 12,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25S80,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 256,
 		.name = "EN25S80",
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25S16,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 512,
 		.name = "EN25S16",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25S32,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 1024,
 		.name = "EN25S32",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
 		.id = EON_ID_EN25S64,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_sectors = 2048,
 		.name = "EN25S64",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 };
 
@@ -245,16 +194,16 @@
 int spi_flash_probe_eon(const struct spi_slave *spi, u8 *idcode,
 			struct spi_flash *flash)
 {
-	const struct eon_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(eon_spi_flash_table); ++i) {
-		params = &eon_spi_flash_table[i];
+	for (i = 0; i < ARRAY_SIZE(flash_table); ++i) {
+		params = &flash_table[i];
 		if (params->id == ((idcode[1] << 8) | idcode[2]))
 			break;
 	}
 
-	if (i == ARRAY_SIZE(eon_spi_flash_table)) {
+	if (i == ARRAY_SIZE(flash_table)) {
 		printk(BIOS_WARNING, "SF: Unsupported EON ID %#02x%02x\n",
 		       idcode[1], idcode[2]);
 		return -1;
@@ -263,9 +212,9 @@
 	memcpy(&flash->spi, spi, sizeof(*spi));
 
 	flash->name = params->name;
-	flash->page_size = params->page_size;
-	flash->sector_size = params->page_size * params->pages_per_sector;
-	flash->size = flash->sector_size * params->nr_sectors;
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
 	flash->erase_cmd = CMD_EN25_SE;
 	flash->status_cmd = CMD_EN25_RDSR;
 	flash->pp_cmd = CMD_EN25_PP;
diff --git a/src/drivers/spi/gigadevice.c b/src/drivers/spi/gigadevice.c
index b78b830..010fb45 100644
--- a/src/drivers/spi/gigadevice.c
+++ b/src/drivers/spi/gigadevice.c
@@ -34,133 +34,96 @@
 #define CMD_GD25_DP		0xb9	/* Deep Power-down */
 #define CMD_GD25_RES		0xab	/* Release from DP, and Read Signature */
 
-struct gigadevice_spi_flash_params {
-	uint16_t	id;
-	uint8_t		dual_spi : 1;
-	uint8_t		_reserved_for_flags : 3;
-	uint8_t		l2_page_size_shift : 4;
-	uint8_t		pages_per_sector_shift : 4;
-	uint8_t		sectors_per_block_shift : 4;
-	uint8_t		nr_blocks_shift;
-	const char	name[10];
-};
-
-static const struct gigadevice_spi_flash_params gigadevice_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table[] = {
 	{
 		.id				= 0x3114,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 4,
 		.name				= "GD25T80",
+		.nr_sectors_shift		= 8,
+		.sector_size_kib_shift		= 2,
 	},
 	{
 		.id				= 0x4014,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 4,
-		.dual_spi			= 1,
 		.name				= "GD25Q80",
+		.nr_sectors_shift		= 8,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},					/* also GD25Q80B */
 	{
 		.id				= 0x4015,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 5,
-		.dual_spi			= 1,
 		.name				= "GD25Q16",
+		.nr_sectors_shift		= 9,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},					/* also GD25Q16B */
 	{
 		.id				= 0x4016,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 6,
-		.dual_spi			= 1,
 		.name				= "GD25Q32B",
+		.nr_sectors_shift		= 10,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},					/* also GD25Q32B */
 	{
 		.id				= 0x4017,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 7,
-		.dual_spi			= 1,
 		.name				= "GD25Q64",
+		.nr_sectors_shift		= 11,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},					/* also GD25Q64B, GD25B64C */
 	{
 		.id				= 0x4018,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 8,
-		.dual_spi			= 1,
 		.name				= "GD25Q128",
+		.nr_sectors_shift		= 12,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},					/* also GD25Q128B */
 	{
 		.id				= 0x4214,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 4,
-		.dual_spi			= 1,
 		.name				= "GD25VQ80C",
+		.nr_sectors_shift		= 8,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x4215,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 5,
-		.dual_spi			= 1,
 		.name				= "GD25VQ16C",
+		.nr_sectors_shift		= 9,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x6014,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 4,
-		.dual_spi			= 1,
 		.name				= "GD25LQ80",
+		.nr_sectors_shift		= 8,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x6015,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 5,
-		.dual_spi			= 1,
 		.name				= "GD25LQ16",
+		.nr_sectors_shift		= 9,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x6016,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 6,
-		.dual_spi			= 1,
 		.name				= "GD25LQ32",
+		.nr_sectors_shift		= 10,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x6017,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 7,
-		.dual_spi			= 1,
 		.name				= "GD25LQ64C",
+		.nr_sectors_shift		= 11,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},					/* also GD25LB64C */
 	{
 		.id				= 0x6018,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 8,
-		.dual_spi			= 1,
 		.name				= "GD25LQ128",
+		.nr_sectors_shift		= 12,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 };
 
@@ -174,16 +137,16 @@
 int spi_flash_probe_gigadevice(const struct spi_slave *spi, u8 *idcode,
 				struct spi_flash *flash)
 {
-	const struct gigadevice_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(gigadevice_spi_flash_table); i++) {
-		params = &gigadevice_spi_flash_table[i];
+	for (i = 0; i < ARRAY_SIZE(flash_table); i++) {
+		params = &flash_table[i];
 		if (params->id == ((idcode[1] << 8) | idcode[2]))
 			break;
 	}
 
-	if (i == ARRAY_SIZE(gigadevice_spi_flash_table)) {
+	if (i == ARRAY_SIZE(flash_table)) {
 		printk(BIOS_WARNING,
 		       "SF gigadevice.c: Unsupported ID %#02x%02x\n",
 		       idcode[1], idcode[2]);
@@ -194,12 +157,9 @@
 	flash->name = params->name;
 
 	/* Assuming power-of-two page size initially. */
-	flash->page_size = 1 << params->l2_page_size_shift;
-	flash->sector_size = flash->page_size *
-			     (1 << params->pages_per_sector_shift);
-	flash->size = flash->sector_size *
-		      (1 << params->sectors_per_block_shift) *
-		      (1 << params->nr_blocks_shift);
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
 	flash->erase_cmd = CMD_GD25_SE;
 	flash->status_cmd = CMD_GD25_RDSR;
 	flash->pp_cmd = CMD_GD25_PP;
diff --git a/src/drivers/spi/macronix.c b/src/drivers/spi/macronix.c
index 334404de..c7a4ce0 100644
--- a/src/drivers/spi/macronix.c
+++ b/src/drivers/spi/macronix.c
@@ -36,167 +36,120 @@
 
 #define MACRONIX_SR_WIP		(1 << 0)	/* Write-in-Progress */
 
-struct macronix_spi_flash_params {
-	u16 idcode;
-	u16 page_size;
-	u16 pages_per_sector;
-	u16 sectors_per_block;
-	u16 nr_blocks;
-	const char *name;
-};
-
-static const struct macronix_spi_flash_params macronix_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table[] = {
 	{
-		.idcode = 0x2014,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 16,
+		.id = 0x2014,
 		.name = "MX25L8005",
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2015,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 32,
+		.id = 0x2015,
 		.name = "MX25L1605D",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2016,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 64,
+		.id = 0x2016,
 		.name = "MX25L3205D",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2017,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 128,
+		.id = 0x2017,
 		.name = "MX25L6405D",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2018,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 256,
+		.id = 0x2018,
 		.name = "MX25L12805D",
+		.nr_sectors_shift = 12,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2019,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 512,
+		.id = 0x2019,
 		.name = "MX25L25635F",
+		.nr_sectors_shift = 13,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x201a,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 1024,
+		.id = 0x201a,
 		.name = "MX66L51235F",
+		.nr_sectors_shift = 14,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2415,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 32,
+		.id = 0x2415,
 		.name = "MX25L1635D",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2515,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 32,
+		.id = 0x2515,
 		.name = "MX25L1635E",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2534,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 16,
+		.id = 0x2534,
 		.name = "MX25U8032E",
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2535,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 32,
+		.id = 0x2535,
 		.name = "MX25U1635E",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2536,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 64,
+		.id = 0x2536,
 		.name = "MX25U3235E",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2537,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 128,
+		.id = 0x2537,
 		.name = "MX25U6435F",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2538,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 256,
+		.id = 0x2538,
 		.name = "MX25U12835F",
+		.nr_sectors_shift = 12,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2539,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 512,
+		.id = 0x2539,
 		.name = "MX25U25635F",
+		.nr_sectors_shift = 13,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x253a,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 1024,
+		.id = 0x253a,
 		.name = "MX25U51245G",
+		.nr_sectors_shift = 14,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x2618,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 256,
+		.id = 0x2618,
 		.name = "MX25L12855E",
+		.nr_sectors_shift = 12,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x5e16,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 64,
+		.id = 0x5e16,
 		.name = "MX25L3235D", /* MX25L3225D/MX25L3236D/MX25L3237D */
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.idcode = 0x9517,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.sectors_per_block = 16,
-		.nr_blocks = 128,
+		.id = 0x9517,
 		.name = "MX25L6495F",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 };
 
@@ -210,27 +163,26 @@
 int spi_flash_probe_macronix(const struct spi_slave *spi, u8 *idcode,
 			     struct spi_flash *flash)
 {
-	const struct macronix_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	unsigned int i;
 	u16 id = idcode[2] | idcode[1] << 8;
 
-	for (i = 0; i < ARRAY_SIZE(macronix_spi_flash_table); i++) {
-		params = &macronix_spi_flash_table[i];
-		if (params->idcode == id)
+	for (i = 0; i < ARRAY_SIZE(flash_table); i++) {
+		params = &flash_table[i];
+		if (params->id == id)
 			break;
 	}
 
-	if (i == ARRAY_SIZE(macronix_spi_flash_table)) {
+	if (i == ARRAY_SIZE(flash_table)) {
 		printk(BIOS_WARNING, "SF: Unsupported Macronix ID %04x\n", id);
 		return -1;
 	}
 
 	memcpy(&flash->spi, spi, sizeof(*spi));
 	flash->name = params->name;
-	flash->page_size = params->page_size;
-	flash->sector_size = params->page_size * params->pages_per_sector;
-	flash->size = flash->sector_size * params->sectors_per_block *
-			params->nr_blocks;
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * params->nr_sectors_shift;
 	flash->erase_cmd = CMD_MX25XX_SE;
 	flash->status_cmd = CMD_MX25XX_RDSR;
 	flash->pp_cmd = CMD_MX25XX_PP;
diff --git a/src/drivers/spi/spansion.c b/src/drivers/spi/spansion.c
index 3d2f39d..b4fca4f 100644
--- a/src/drivers/spi/spansion.c
+++ b/src/drivers/spi/spansion.c
@@ -34,7 +34,6 @@
 #define CMD_S25FLXX_DP		0xb9	/* Deep Power-down */
 #define CMD_S25FLXX_RES		0xab	/* Release from DP, and Read Signature */
 
-#define SPSN_MANUFACTURER_ID_S25FL_K	0x01
 #define SPSN_ID_S25FL008A	0x0213
 #define SPSN_ID_S25FL016A	0x0214
 #define SPSN_ID_S25FL032A	0x0215
@@ -50,171 +49,87 @@
 #define SPSN_EXT_ID_S25FL032P		0x4d00
 #define SPSN_EXT_ID_S25FLXXS_64KB	0x4d01
 
-struct spansion_spi_flash_params {
-	u8  idcode0;
-	u16 idcode1;
-	u16 idcode2;
-	int (*identify) (const struct spansion_spi_flash_params *params,
-			u8 *idcode);
-	u16 page_size;
-	u16 pages_per_sector;
-	u16 nr_sectors;
-	const char *name;
+static const struct spi_flash_part_id flash_table_ext[] = {
+	{
+		.id = SPSN_ID_S25FL008A,
+		.name = "S25FL008A",
+		.nr_sectors_shift = 4,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = SPSN_ID_S25FL016A,
+		.name = "S25FL016A",
+		.nr_sectors_shift = 5,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = SPSN_ID_S25FL032A,
+		.name = "S25FL032A",
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = SPSN_ID_S25FL064A,
+		.name = "S25FL064A",
+		.nr_sectors_shift = 7,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = (SPSN_EXT_ID_S25FL128P_64KB << 16) | SPSN_ID_S25FL128P,
+		.name = "S25FL128P_64K",
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = (SPSN_EXT_ID_S25FL128P_256KB << 16) | SPSN_ID_S25FL128P,
+		.name = "S25FL128P_256K",
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 8,
+	},
+	{
+		.id = (SPSN_EXT_ID_S25FLXXS_64KB << 16) | SPSN_ID_S25FL128S,
+		.name = "S25FL128S_256K",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = (SPSN_EXT_ID_S25FL032P << 16) | SPSN_ID_S25FL032A,
+		.name = "S25FL032P",
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = (SPSN_EXT_ID_S25FLXXS_64KB << 16) | SPSN_ID_S25FL128P,
+		.name = "S25FS128S",
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 6,
+	},
 };
 
-/*
- * returns non-zero if the given idcode matches the ID of the chip. this is for
- * chips which use 2nd, 3rd, 4th, and 5th byte.
- */
-static int identify_2345(const struct spansion_spi_flash_params *params,
-			 u8 *idcode)
-{
-	u16 jedec = idcode[1] << 8 | idcode[2];
-	u16 ext_jedec = idcode[3] << 8 | idcode[4];
-	return (params->idcode1 == jedec) && (params->idcode2 == ext_jedec);
-}
-
-/*
- * returns non-zero if the given idcode matches the ID of the chip. this is for
- * chips which use 1st, 2nd, and 3rd byte.
- */
-static int identify_123(const struct spansion_spi_flash_params *params,
-			u8 *idcode)
-{
-	u16 jedec = idcode[1] << 8 | idcode[2];
-	return (params->idcode0 == idcode[0]) && (params->idcode1 == jedec);
-}
-
-static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table[] = {
 	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL008A,
-		.idcode2 = 0,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 16,
-		.name = "S25FL008A",
-	},
-	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL016A,
-		.idcode2 = 0,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 32,
-		.name = "S25FL016A",
-	},
-	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL032A,
-		.idcode2 = 0,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 64,
-		.name = "S25FL032A",
-	},
-	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL064A,
-		.idcode2 = 0,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 128,
-		.name = "S25FL064A",
-	},
-	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL128P,
-		.idcode2 = SPSN_EXT_ID_S25FL128P_64KB,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 256,
-		.name = "S25FL128P_64K",
-	},
-	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL128P,
-		.idcode2 = SPSN_EXT_ID_S25FL128P_256KB,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 1024,
-		.nr_sectors = 64,
-		.name = "S25FL128P_256K",
-	},
-	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL128S,
-		.idcode2 = SPSN_EXT_ID_S25FLXXS_64KB,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 512,
-		.name = "S25FL128S_256K",
-	},
-	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL032A,
-		.idcode2 = SPSN_EXT_ID_S25FL032P,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 64,
-		.name = "S25FL032P",
-	},
-	{
-		.idcode0 = 0,
-		.idcode1 = SPSN_ID_S25FL128P,
-		.idcode2 = SPSN_EXT_ID_S25FLXXS_64KB,
-		.identify = identify_2345,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 256,
-		.name = "S25FS128S",
-	},
-	{
-		.idcode0 = SPSN_MANUFACTURER_ID_S25FL_K,
-		.idcode1 = SPSN_ID_S25FL208K,
-		.idcode2 = 0,
-		.identify = identify_123,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 16,
+		.id = SPSN_ID_S25FL208K,
 		.name = "S25FL208K",
+		.nr_sectors_shift = 4,
+		.sector_size_kib_shift = 6,
 	},
 	{
-		.idcode0 = SPSN_MANUFACTURER_ID_S25FL_K,
-		.idcode1 = SPSN_ID_S25FL116K,
-		.idcode2 = 0,
-		.identify = identify_123,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 32,
+		.id = SPSN_ID_S25FL116K,
 		.name = "S25FL116K_16M",
+		.nr_sectors_shift = 5,
+		.sector_size_kib_shift = 6,
 	},
 	{
-		.idcode0 = SPSN_MANUFACTURER_ID_S25FL_K,
-		.idcode1 = SPSN_ID_S25FL132K,
-		.idcode2 = 0,
-		.identify = identify_123,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 64,
+		.id = SPSN_ID_S25FL132K,
 		.name = "S25FL132K",
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 6,
 	},
 	{
-		.idcode0 = SPSN_MANUFACTURER_ID_S25FL_K,
-		.idcode1 = SPSN_ID_S25FL164K,
-		.idcode2 = 0,
-		.identify = identify_123,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 128,
+		.id = SPSN_ID_S25FL164K,
 		.name = "S25FL164K",
+		.nr_sectors_shift = 7,
+		.sector_size_kib_shift = 6,
 	},
 };
 
@@ -225,30 +140,28 @@
 	.status = spi_flash_cmd_status,
 };
 
-int spi_flash_probe_spansion(const struct spi_slave *spi, u8 *idcode,
-				struct spi_flash *flash)
+
+static int match_table(const struct spi_slave *spi, struct spi_flash *flash, u32 id,
+			const struct spi_flash_part_id *parts, size_t num_parts)
 {
-	const struct spansion_spi_flash_params *params;
+	const struct spi_flash_part_id *params = NULL;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) {
-		params = &spansion_spi_flash_table[i];
-		if (params->identify(params, idcode))
-			break;
+	for (i = 0; i < num_parts; i++) {
+		if (parts[i].id != id)
+			continue;
+		params = &parts[i];
+		break;
 	}
 
-	if (i == ARRAY_SIZE(spansion_spi_flash_table)) {
-		printk(BIOS_WARNING,
-		       "SF: Unsupported SPANSION ID %02x %02x %02x %02x %02x\n",
-		       idcode[0], idcode[1], idcode[2], idcode[3], idcode[4]);
+	if (params == NULL)
 		return -1;
-	}
 
 	memcpy(&flash->spi, spi, sizeof(*spi));
 	flash->name = params->name;
-	flash->page_size = params->page_size;
-	flash->sector_size = params->page_size * params->pages_per_sector;
-	flash->size = flash->sector_size * params->nr_sectors;
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
 	flash->erase_cmd = CMD_S25FLXX_SE;
 	flash->status_cmd = CMD_S25FLXX_RDSR;
 	flash->pp_cmd = CMD_S25FLXX_PP;
@@ -258,3 +171,22 @@
 
 	return 0;
 }
+
+int spi_flash_probe_spansion(const struct spi_slave *spi, u8 *idcode,
+				struct spi_flash *flash)
+{
+	u32 id;
+
+	id = ((idcode[3] << 8) | idcode[4]) << 16;
+	id |= (idcode[1] << 8) | idcode[2];
+
+	if (!match_table(spi, flash, id, flash_table_ext, ARRAY_SIZE(flash_table_ext)))
+		return 0;
+
+	if (!match_table(spi, flash, id & 0xffff, flash_table, ARRAY_SIZE(flash_table)))
+		return 0;
+
+	printk(BIOS_WARNING, "SF: Unsupported SPANSION ID %08x\n", id);
+
+	return -1;
+}
diff --git a/src/drivers/spi/spi_flash_internal.h b/src/drivers/spi/spi_flash_internal.h
index ef756c7..cc258de 100644
--- a/src/drivers/spi/spi_flash_internal.h
+++ b/src/drivers/spi/spi_flash_internal.h
@@ -93,4 +93,18 @@
 int spi_flash_probe_adesto(const struct spi_slave *spi, u8 *idcode,
 			   struct spi_flash *flash);
 
+struct spi_flash_part_id {
+	uint32_t id;
+	const char *name;
+	/* Log based 2 total number of sectors. */
+	uint16_t nr_sectors_shift: 4;
+	/* Log based 2 sector size */
+	uint16_t sector_size_kib_shift: 4;
+	uint16_t fast_read_dual_output_support : 1;
+	uint16_t _reserved_for_flags: 7;
+	/* Block protection. Currently used by Winbond. */
+	uint16_t protection_granularity_shift : 5;
+	uint16_t bp_bits : 3;
+};
+
 #endif /* SPI_FLASH_INTERNAL_H */
diff --git a/src/drivers/spi/sst.c b/src/drivers/spi/sst.c
index 1fb6446..1b4ba57 100644
--- a/src/drivers/spi/sst.c
+++ b/src/drivers/spi/sst.c
@@ -44,13 +44,6 @@
 #define SST_SR_AAI		(1 << 6)	/* Addressing mode */
 #define SST_SR_BPL		(1 << 7)	/* BP bits lock */
 
-struct sst_spi_flash_params {
-	u8 idcode1;
-	u16 nr_sectors;
-	const char *name;
-	const struct spi_flash_ops *ops;
-};
-
 static int sst_write_ai(const struct spi_flash *flash, u32 offset, size_t len,
 			const void *buf);
 
@@ -68,68 +61,71 @@
 	.status = spi_flash_cmd_status,
 };
 
-#define SST_SECTOR_SIZE (4 * 1024)
-static const struct sst_spi_flash_params sst_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table_ai[] = {
 	{
-		.idcode1 = 0x8d,
-		.nr_sectors = 128,
+		.id = 0x8d,
 		.name = "SST25VF040B",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 7,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x8e,
-		.nr_sectors = 256,
+		.id = 0x8e,
 		.name = "SST25VF080B",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x80,
-		.nr_sectors = 256,
+		.id = 0x80,
 		.name = "SST25VF080",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x41,
-		.nr_sectors = 512,
+		.id = 0x41,
 		.name = "SST25VF016B",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x4a,
-		.nr_sectors = 1024,
+		.id = 0x4a,
 		.name = "SST25VF032B",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x4b,
-		.nr_sectors = 2048,
-		.name = "SST25VF064C",
-		.ops = &spi_flash_ops_write_256,
-	},{
-		.idcode1 = 0x01,
-		.nr_sectors = 16,
+		.id = 0x01,
 		.name = "SST25WF512",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 4,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x02,
-		.nr_sectors = 32,
+		.id = 0x02,
 		.name = "SST25WF010",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 5,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x03,
-		.nr_sectors = 64,
+		.id = 0x03,
 		.name = "SST25WF020",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x04,
-		.nr_sectors = 128,
+		.id = 0x04,
 		.name = "SST25WF040",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 7,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x05,
-		.nr_sectors = 256,
+		.id = 0x05,
 		.name = "SST25WF080",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
 	},{
-		.idcode1 = 0x14,
-		.nr_sectors = 256,
+		.id = 0x14,
 		.name = "SST25WF080B",
-		.ops = &spi_flash_ops_write_ai,
+		.nr_sectors_shift = 8,
+		.sector_size_kib_shift = 2,
+	},
+};
+
+static const struct spi_flash_part_id flash_table_pp256[] = {
+	{
+		.id = 0x4b,
+		.name = "SST25VF064C",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 };
 
@@ -273,40 +269,53 @@
 	return ret;
 }
 
-int spi_flash_probe_sst(const struct spi_slave *spi, u8 *idcode,
-			struct spi_flash *flash)
+static int match_table(const struct spi_slave *spi, struct spi_flash *flash, u8 id,
+			const struct spi_flash_part_id *parts, size_t num_parts,
+			const struct spi_flash_ops *ops)
 {
-	const struct sst_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	size_t i;
 
-	for (i = 0; i < ARRAY_SIZE(sst_spi_flash_table); ++i) {
-		params = &sst_spi_flash_table[i];
-		if (params->idcode1 == idcode[2])
+	for (i = 0; i < num_parts; i++) {
+		params = &parts[i];
+		if (params->id == id)
 			break;
 	}
 
-	if (i == ARRAY_SIZE(sst_spi_flash_table)) {
-		printk(BIOS_WARNING, "SF: Unsupported SST ID %02x\n", idcode[1]);
+	if (i == num_parts)
 		return -1;
-	}
 
 	memcpy(&flash->spi, spi, sizeof(*spi));
 	flash->name = params->name;
-	flash->sector_size = SST_SECTOR_SIZE;
-	flash->size = flash->sector_size * params->nr_sectors;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
 	flash->erase_cmd = CMD_SST_SE;
 	flash->status_cmd = CMD_SST_RDSR;
 	flash->wren_cmd = CMD_SST_WREN;
 
-	if (params->ops == &spi_flash_ops_write_256) {
-		flash->page_size = 256;
-		flash->pp_cmd = CMD_SST_PP;
-	}
-
-	flash->ops = params->ops;
+	flash->ops = ops;
 
 	/* Flash powers up read-only, so clear BP# bits */
 	sst_unlock(flash);
 
 	return 0;
 }
+
+int spi_flash_probe_sst(const struct spi_slave *spi, u8 *idcode,
+			struct spi_flash *flash)
+{
+	if (!match_table(spi, flash, idcode[2], flash_table_ai,
+			ARRAY_SIZE(flash_table_ai), &spi_flash_ops_write_ai))
+		return 0;
+
+	if (!match_table(spi, flash, idcode[2], flash_table_pp256,
+			ARRAY_SIZE(flash_table_pp256), &spi_flash_ops_write_256)) {
+		flash->page_size = 256;
+		flash->pp_cmd = CMD_SST_PP;
+		return 0;
+	}
+
+	printk(BIOS_WARNING, "SF: Unsupported SST ID %02x\n", idcode[2]);
+
+	return -1;
+}
diff --git a/src/drivers/spi/stmicro.c b/src/drivers/spi/stmicro.c
index 7aa06bd..2f4e42a 100644
--- a/src/drivers/spi/stmicro.c
+++ b/src/drivers/spi/stmicro.c
@@ -64,223 +64,165 @@
 #define STM_ID_N25Q128__1E	0xbb18
 #define STM_ID_N25Q256__1E	0xbb19
 
-struct stmicro_spi_flash_params {
-	u16 device_id;
-	u8 op_erase;
-	u16 page_size;
-	u16 pages_per_sector;
-	u16 nr_sectors;
-	const char *name;
+static const struct spi_flash_part_id flash_table_se[] = {
+	{
+		.id = STM_ID_M25P10,
+		.name = "M25P10",
+		.nr_sectors_shift = 2,
+		.sector_size_kib_shift = 5,
+	},
+	{
+		.id = STM_ID_M25P16,
+		.name = "M25P16",
+		.nr_sectors_shift = 5,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25P20,
+		.name = "M25P20",
+		.nr_sectors_shift = 2,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25P32,
+		.name = "M25P32",
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25P40,
+		.name = "M25P40",
+		.nr_sectors_shift = 3,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25P64,
+		.name = "M25P64",
+		.nr_sectors_shift = 7,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25P80,
+		.name = "M25P80",
+		.nr_sectors_shift = 4,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25P128,
+		.name = "M25P128",
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 8,
+	},
+	{
+		.id = STM_ID_M25PX80,
+		.name = "M25PX80",
+		.nr_sectors_shift = 4,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25PX16,
+		.name = "M25PX16",
+		.nr_sectors_shift = 5,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25PX32,
+		.name = "M25PX32",
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25PX64,
+		.name = "M25PX64",
+		.nr_sectors_shift = 7,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25PE80,
+		.name = "M25PE80",
+		.nr_sectors_shift = 4,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25PE16,
+		.name = "M25PE16",
+		.nr_sectors_shift = 5,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25PE32,
+		.name = "M25PE32",
+		.nr_sectors_shift = 6,
+		.sector_size_kib_shift = 6,
+	},
+	{
+		.id = STM_ID_M25PE64,
+		.name = "M25PE64",
+		.nr_sectors_shift = 7,
+		.sector_size_kib_shift = 6,
+	},
 };
 
-static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table_sse[] = {
 	{
-		.device_id = STM_ID_M25P10,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 128,
-		.nr_sectors = 4,
-		.name = "M25P10",
-	},
-	{
-		.device_id = STM_ID_M25P16,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 32,
-		.name = "M25P16",
-	},
-	{
-		.device_id = STM_ID_M25P20,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 4,
-		.name = "M25P20",
-	},
-	{
-		.device_id = STM_ID_M25P32,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 64,
-		.name = "M25P32",
-	},
-	{
-		.device_id = STM_ID_M25P40,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 8,
-		.name = "M25P40",
-	},
-	{
-		.device_id = STM_ID_M25P64,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 128,
-		.name = "M25P64",
-	},
-	{
-		.device_id = STM_ID_M25P80,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 16,
-		.name = "M25P80",
-	},
-	{
-		.device_id = STM_ID_M25P128,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 1024,
-		.nr_sectors = 64,
-		.name = "M25P128",
-	},
-	{
-		.device_id = STM_ID_M25PX80,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 16,
-		.name = "M25PX80",
-	},
-	{
-		.device_id = STM_ID_M25PX16,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 32,
-		.name = "M25PX16",
-	},
-	{
-		.device_id = STM_ID_M25PX32,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 64,
-		.name = "M25PX32",
-	},
-	{
-		.device_id = STM_ID_M25PX64,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 128,
-		.name = "M25PX64",
-	},
-	{
-		.device_id = STM_ID_M25PE80,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 16,
-		.name = "M25PE80",
-	},
-	{
-		.device_id = STM_ID_M25PE16,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 32,
-		.name = "M25PE16",
-	},
-	{
-		.device_id = STM_ID_M25PE32,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 64,
-		.name = "M25PE32",
-	},
-	{
-		.device_id = STM_ID_M25PE64,
-		.op_erase = CMD_M25PXX_SE,
-		.page_size = 256,
-		.pages_per_sector = 256,
-		.nr_sectors = 128,
-		.name = "M25PE64",
-	},
-	{
-		.device_id = STM_ID_N25Q016__3E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 512,
+		.id = STM_ID_N25Q016__3E,
 		.name = "N25Q016..3E",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q032__3E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 1024,
+		.id = STM_ID_N25Q032__3E,
 		.name = "N25Q032..3E",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q064__3E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 2048,
+		.id = STM_ID_N25Q064__3E,
 		.name = "N25Q064..3E",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q128__3E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 4096,
+		.id = STM_ID_N25Q128__3E,
 		.name = "N25Q128..3E",
+		.nr_sectors_shift = 12,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q256__3E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 8192,
+		.id = STM_ID_N25Q256__3E,
 		.name = "N25Q256..3E",
+		.nr_sectors_shift = 13,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q016__1E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 512,
+		.id = STM_ID_N25Q016__1E,
 		.name = "N25Q016..1E",
+		.nr_sectors_shift = 9,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q032__1E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 1024,
+		.id = STM_ID_N25Q032__1E,
 		.name = "N25Q032..1E",
+		.nr_sectors_shift = 10,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q064__1E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 2048,
+		.id = STM_ID_N25Q064__1E,
 		.name = "N25Q064..1E",
+		.nr_sectors_shift = 11,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q128__1E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 4096,
+		.id = STM_ID_N25Q128__1E,
 		.name = "N25Q128..1E",
+		.nr_sectors_shift = 12,
+		.sector_size_kib_shift = 2,
 	},
 	{
-		.device_id = STM_ID_N25Q256__1E,
-		.op_erase = CMD_M25PXX_SSE,
-		.page_size = 256,
-		.pages_per_sector = 16,
-		.nr_sectors = 8192,
+		.id = STM_ID_N25Q256__1E,
 		.name = "N25Q256..1E",
+		.nr_sectors_shift = 13,
+		.sector_size_kib_shift = 2,
 	},
 };
 
@@ -309,31 +251,30 @@
 	return 0;
 }
 
-int spi_flash_probe_stmicro(const struct spi_slave *spi, u8 *idcode,
-			    struct spi_flash *flash)
+static int match_table(const struct spi_slave *spi, struct spi_flash *flash, u16 id,
+			const struct spi_flash_part_id *parts, size_t num_parts,
+			u8 erase_cmd)
 {
-	const struct stmicro_spi_flash_params *params;
-	unsigned int i;
+	const struct spi_flash_part_id *params;
+	size_t i;
 
-	for (i = 0; i < ARRAY_SIZE(stmicro_spi_flash_table); i++) {
-		params = &stmicro_spi_flash_table[i];
-		if (params->device_id == (idcode[1] << 8 | idcode[2])) {
+	for (i = 0; i < num_parts; i++) {
+		params = &parts[i];
+		if (params->id == id)
 			break;
-		}
 	}
 
-	if (i == ARRAY_SIZE(stmicro_spi_flash_table)) {
-		printk(BIOS_WARNING, "SF: Unsupported STMicro ID %02x%02x\n",
-		       idcode[1], idcode[2]);
+	if (i == num_parts) {
+		printk(BIOS_WARNING, "SF: Unsupported STMicro ID %04x\n", id);
 		return -1;
 	}
 
 	memcpy(&flash->spi, spi, sizeof(*spi));
 	flash->name = params->name;
-	flash->page_size = params->page_size;
-	flash->sector_size = params->page_size * params->pages_per_sector;
-	flash->size = flash->sector_size * params->nr_sectors;
-	flash->erase_cmd = params->op_erase;
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
+	flash->erase_cmd = erase_cmd;
 	flash->status_cmd = CMD_M25PXX_RDSR;
 	flash->pp_cmd = CMD_M25PXX_PP;
 	flash->wren_cmd = CMD_M25PXX_WREN;
@@ -342,3 +283,21 @@
 
 	return 0;
 }
+
+int spi_flash_probe_stmicro(const struct spi_slave *spi, u8 *idcode,
+			    struct spi_flash *flash)
+{
+	u16 id = (idcode[1] << 8) | idcode[2];
+
+	if (!match_table(spi, flash, id, flash_table_se, ARRAY_SIZE(flash_table_se),
+		CMD_M25PXX_SE)) {
+		return 0;
+	}
+
+	if (!match_table(spi, flash, id, flash_table_sse, ARRAY_SIZE(flash_table_sse),
+		CMD_M25PXX_SSE)) {
+		return 0;
+	}
+
+	return -1;
+}
diff --git a/src/drivers/spi/winbond.c b/src/drivers/spi/winbond.c
index 27aaae8..6766bb6 100644
--- a/src/drivers/spi/winbond.c
+++ b/src/drivers/spi/winbond.c
@@ -23,19 +23,6 @@
 #include "spi_flash_internal.h"
 #include "spi_winbond.h"
 
-struct winbond_spi_flash_params {
-	uint16_t id;
-	uint8_t dual_spi : 1;
-	uint8_t _reserved_for_flags : 3;
-	uint8_t l2_page_size_shift : 4;
-	uint8_t pages_per_sector_shift : 4;
-	uint8_t sectors_per_block_shift : 4;
-	uint8_t nr_blocks_shift;
-	uint8_t bp_bits : 3;
-	uint8_t protection_granularity_shift : 5;
-	char name[10];
-};
-
 union status_reg1_bp3 {
 	uint8_t u;
 	struct {
@@ -92,205 +79,165 @@
 	};
 };
 
-static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {
+static const struct spi_flash_part_id flash_table[] = {
 	{
 		.id				= 0x2014,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 4,
 		.name				= "W25P80",
+		.nr_sectors_shift		= 8,
+		.sector_size_kib_shift		= 2,
 	},
 	{
 		.id				= 0x2015,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 5,
 		.name				= "W25P16",
+		.nr_sectors_shift		= 9,
+		.sector_size_kib_shift		= 2,
 	},
 	{
 		.id				= 0x2016,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 6,
 		.name				= "W25P32",
+		.nr_sectors_shift		= 10,
+		.sector_size_kib_shift		= 2,
 	},
 	{
 		.id				= 0x3014,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 4,
 		.name				= "W25X80",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 8,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x3015,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 5,
 		.name				= "W25X16",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 9,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x3016,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 6,
 		.name				= "W25X32",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 10,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x3017,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 7,
 		.name				= "W25X64",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 11,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x4014,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 4,
 		.name				= "W25Q80_V",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 8,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 	},
 	{
 		.id				= 0x4015,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 5,
 		.name				= "W25Q16_V",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 9,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 16,
 		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x6015,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 5,
 		.name				= "W25Q16DW",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 9,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 16,
 		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x4016,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 6,
 		.name				= "W25Q32_V",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 10,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 16,
 		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x6016,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 6,
 		.name				= "W25Q32DW",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 10,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 16,
 		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x4017,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 7,
 		.name				= "W25Q64_V",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 11,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 17,
 		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x6017,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 7,
 		.name				= "W25Q64DW",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 11,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 17,
 		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x4018,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 8,
 		.name				= "W25Q128_V",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 12,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 18,
 		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x6018,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 8,
 		.name				= "W25Q128FW",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 12,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 18,
 		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x7018,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 8,
 		.name				= "W25Q128J",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 12,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 18,
 		.bp_bits			= 3,
 	},
 	{
-		.id                             = 0x8018,
-		.l2_page_size_shift             = 8,
-		.pages_per_sector_shift         = 4,
-		.sectors_per_block_shift        = 4,
-		.nr_blocks_shift                = 8,
-		.name                           = "W25Q128JW",
-		.dual_spi                       = 1,
-		.protection_granularity_shift   = 18,
-		.bp_bits                        = 3,
+		.id				= 0x8018,
+		.name				= "W25Q128JW",
+		.nr_sectors_shift		= 12,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
+		.protection_granularity_shift	= 18,
+		.bp_bits			= 3,
 	},
 	{
 		.id				= 0x4019,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 9,
 		.name				= "W25Q256_V",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 13,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 16,
 		.bp_bits			= 4,
 	},
 	{
 		.id				= 0x7019,
-		.l2_page_size_shift		= 8,
-		.pages_per_sector_shift		= 4,
-		.sectors_per_block_shift	= 4,
-		.nr_blocks_shift		= 9,
 		.name				= "W25Q256J",
-		.dual_spi			= 1,
+		.nr_sectors_shift		= 13,
+		.sector_size_kib_shift		= 2,
+		.fast_read_dual_output_support	= 1,
 		.protection_granularity_shift	= 16,
 		.bp_bits			= 4,
 	},
@@ -319,6 +266,17 @@
 	out->size = protected_size;
 }
 
+static const struct spi_flash_part_id *lookup_part(u16 id)
+{
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(flash_table); i++) {
+		if (flash_table[i].id == id)
+			return &flash_table[i];
+	}
+
+	return NULL;
+}
 /*
  * Available on all devices.
  * Read block protect bits from Status/Status2 Reg.
@@ -332,13 +290,17 @@
 static int winbond_get_write_protection(const struct spi_flash *flash,
 					const struct region *region)
 {
-	const struct winbond_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	struct region wp_region;
 	union status_reg2 reg2;
 	u8 bp, tb;
 	int ret;
 
-	params = (const struct winbond_spi_flash_params *)flash->driver_private;
+	params = lookup_part(flash->model);
+
+	if (!params)
+		return -1;
+
 	const size_t granularity = (1 << params->protection_granularity_shift);
 
 	if (params->bp_bits == 3) {
@@ -507,7 +469,7 @@
 			     const bool non_volatile,
 			     const enum spi_flash_status_reg_lockdown mode)
 {
-	const struct winbond_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	struct status_regs mask, val;
 	struct region wp_region;
 	u8 cmp, bp, tb;
@@ -517,7 +479,8 @@
 	if (region_offset(region) != 0 && region_end(region) != flash->size)
 		return -1;
 
-	params = (const struct winbond_spi_flash_params *)flash->driver_private;
+	params = lookup_part(flash->model);
+
 	if (!params)
 		return -1;
 
@@ -625,16 +588,16 @@
 int spi_flash_probe_winbond(const struct spi_slave *spi, u8 *idcode,
 			    struct spi_flash *flash)
 {
-	const struct winbond_spi_flash_params *params;
+	const struct spi_flash_part_id *params;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(winbond_spi_flash_table); i++) {
-		params = &winbond_spi_flash_table[i];
+	for (i = 0; i < ARRAY_SIZE(flash_table); i++) {
+		params = &flash_table[i];
 		if (params->id == ((idcode[1] << 8) | idcode[2]))
 			break;
 	}
 
-	if (i == ARRAY_SIZE(winbond_spi_flash_table)) {
+	if (i == ARRAY_SIZE(flash_table)) {
 		printk(BIOS_WARNING, "SF: Unsupported Winbond ID %02x%02x\n",
 				idcode[1], idcode[2]);
 		return -1;
@@ -644,22 +607,18 @@
 	flash->name = params->name;
 
 	/* Params are in power-of-two. */
-	flash->page_size = 1 << params->l2_page_size_shift;
-	flash->sector_size = flash->page_size *
-			(1 << params->pages_per_sector_shift);
-	flash->size = flash->sector_size *
-			(1 << params->sectors_per_block_shift) *
-			(1 << params->nr_blocks_shift);
+	flash->page_size = 256;
+	flash->sector_size = (1U << params->sector_size_kib_shift) * KiB;
+	flash->size = flash->sector_size * (1U << params->nr_sectors_shift);
 	flash->erase_cmd = CMD_W25_SE;
 	flash->status_cmd = CMD_W25_RDSR;
 	flash->pp_cmd = CMD_W25_PP;
 	flash->wren_cmd = CMD_W25_WREN;
 
-	flash->flags.dual_spi = params->dual_spi;
+	flash->flags.dual_spi = params->fast_read_dual_output_support;
 
 	flash->ops = &spi_flash_ops;
 	flash->prot_ops = &spi_flash_protection_ops;
-	flash->driver_private = params;
 
 	return 0;
 }
diff --git a/src/include/spi_flash.h b/src/include/spi_flash.h
index 9c11433..ffa66db 100644
--- a/src/include/spi_flash.h
+++ b/src/include/spi_flash.h
@@ -113,7 +113,6 @@
 	const struct spi_flash_ops *ops;
 	/* If !NULL all protection callbacks exist. */
 	const struct spi_flash_protection_ops *prot_ops;
-	const void *driver_private;
 };
 
 void lb_spi_flash(struct lb_header *header);