diff --git a/flashchips/winbond.c b/flashchips/winbond.c
index 973bf2c30..9709e786c 100644
--- a/flashchips/winbond.c
+++ b/flashchips/winbond.c
@@ -655,8 +655,9 @@
 		.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_4BA,
-		.tested		= TEST_OK_PREW,
+		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_4BA | FEATURE_WRSR2
+				  | FEATURE_WRSR3,
+		.tested		= TEST_OK_PREWB,
 		.probe		= PROBE_SPI_RDID,
 		.probe_timing	= TIMING_ZERO,
 		.block_erasers	=
@@ -689,6 +690,16 @@
 		.write		= SPI_CHIP_WRITE256,
 		.read		= SPI_CHIP_READ,
 		.voltage	= {1650, 1950},
+		.reg_bits	=
+		{
+			.srp	= {STATUS1, 7, RW},
+			.srl	= {STATUS2, 0, RW},
+			.bp	= {{STATUS1, 2, RW}, {STATUS1, 3, RW}, {STATUS1, 4, RW}, {STATUS1, 5, RW}},
+			.tb	= {STATUS1, 6, RW},
+			.cmp	= {STATUS2, 6, RW},
+			.wps	= {STATUS3, 2, RW},
+		},
+		.decode_range	= DECODE_RANGE_SPI25,
 	},
 
 	{