diff --git a/flashchips.c b/flashchips.c
index 9556788..609df03 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -16963,7 +16963,7 @@
 		.page_size	= 256,
 		/* supports SFDP */
 		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
-		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_WRSR2,
 		.tested		= TEST_OK_PREW,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -16991,6 +16991,18 @@
 		.write		= spi_chip_write_256,
 		.read		= spi_chip_read,
 		.voltage	= {2700, 3600},
+		/* FIXME: Older versions (e.g. 25Q128BV) use WRSR_EXT and have no WPS. */
+		.reg_bits	=
+		{
+			.srp	= {STATUS1, 7, RW},
+			.srl	= {STATUS2, 0, RW},
+			.bp	= {{STATUS1, 2, RW}, {STATUS1, 3, RW}, {STATUS1, 4, RW}},
+			.tb	= {STATUS1, 5, RW},
+			.sec	= {STATUS1, 6, RW},
+			.cmp	= {STATUS2, 6, RW},
+			.wps	= {STATUS3, 2, RW},
+		},
+		.decode_range	= decode_range_spi25,
 	},
 
 	{
@@ -17736,7 +17748,7 @@
 
 	{
 		.vendor		= "Winbond",
-		.name		= "W25Q64.V",
+		.name		= "W25Q64BV/W25Q64CV/W25Q64FV",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= WINBOND_NEX_ID,
 		.model_id	= WINBOND_NEX_W25Q64_V,
@@ -17744,7 +17756,7 @@
 		.page_size	= 256,
 		/* supports SFDP */
 		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
-		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_WRSR2,
 		.tested		= TEST_OK_PREW,
 		.probe		= probe_spi_rdid,
 		.probe_timing	= TIMING_ZERO,
@@ -17772,11 +17784,72 @@
 		.write		= spi_chip_write_256,
 		.read		= spi_chip_read,
 		.voltage	= {2700, 3600},
+		.reg_bits	=
+		{
+			.srp	= {STATUS1, 7, RW},
+			.srl	= {STATUS2, 0, RW},
+			.bp	= {{STATUS1, 2, RW}, {STATUS1, 3, RW}, {STATUS1, 4, RW}},
+			.tb	= {STATUS1, 5, RW},
+			.sec	= {STATUS1, 6, RW},
+			.cmp	= {STATUS2, 6, RW},
+		},
+		.decode_range	= decode_range_spi25,
 	},
 
 	{
 		.vendor		= "Winbond",
-		.name		= "W25Q64JV",
+		.name		= "W25Q64JV-.Q",
+		.bustype	= BUS_SPI,
+		.manufacture_id	= WINBOND_NEX_ID,
+		.model_id	= WINBOND_NEX_W25Q64_V,
+		.total_size	= 8192,
+		.page_size	= 256,
+		/* supports SFDP */
+		/* OTP: 1024B total, 256B reserved; read 0x48; write 0x42, erase 0x44, read ID 0x4B */
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_WRSR2,
+		.tested		= TEST_OK_PREW,
+		.probe		= probe_spi_rdid,
+		.probe_timing	= TIMING_ZERO,
+		.block_erasers	=
+		{
+			{
+				.eraseblocks = { {4 * 1024, 2048} },
+				.block_erase = spi_block_erase_20,
+			}, {
+				.eraseblocks = { {32 * 1024, 256} },
+				.block_erase = spi_block_erase_52,
+			}, {
+				.eraseblocks = { {64 * 1024, 128} },
+				.block_erase = spi_block_erase_d8,
+			}, {
+				.eraseblocks = { {8 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_60,
+			}, {
+				.eraseblocks = { {8 * 1024 * 1024, 1} },
+				.block_erase = spi_block_erase_c7,
+			}
+		},
+		.printlock	= spi_prettyprint_status_register_plain, /* TODO: improve */
+		.unlock		= spi_disable_blockprotect,
+		.write		= spi_chip_write_256,
+		.read		= spi_chip_read,
+		.voltage	= {2700, 3600},
+		.reg_bits	=
+		{
+			.srp	= {STATUS1, 7, RW},
+			.srl	= {STATUS2, 0, RW},
+			.bp	= {{STATUS1, 2, RW}, {STATUS1, 3, RW}, {STATUS1, 4, RW}},
+			.tb	= {STATUS1, 5, RW},
+			.sec	= {STATUS1, 6, RW},
+			.cmp	= {STATUS2, 6, RW},
+			.wps	= {STATUS3, 2, RW},
+		},
+		.decode_range	= decode_range_spi25,
+	},
+
+	{
+		.vendor		= "Winbond",
+		.name		= "W25Q64JV-.M",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= WINBOND_NEX_ID,
 		.model_id	= WINBOND_NEX_W25Q64JV,