diff --git a/flashchips.c b/flashchips.c
index 13024de94..245d8e994 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -9417,15 +9417,15 @@ const struct flashchip flashchips[] = {
 
 	{
 		.vendor		= "Macronix",
-		.name		= "MX25L1635E",
+		.name		= "MX25L1635E/MX25L1636E",
 		.bustype	= BUS_SPI,
 		.manufacture_id	= MACRONIX_ID,
 		.model_id	= MACRONIX_MX25L1635E,
 		.total_size	= 2048,
 		.page_size	= 256,
-		/* OTP: 64B total; enter 0xB1, exit 0xC1 */
+		/* OTP: 512B total; enter 0xB1, exit 0xC1 */
 		.feature_bits	= FEATURE_WRSR_WREN | FEATURE_OTP,
-		.tested		= TEST_UNTESTED,
+		.tested		= TEST_OK_PREWB,
 		.probe		= PROBE_SPI_RDID,
 		.probe_timing	= TIMING_ZERO,
 		.block_erasers	=
@@ -9449,6 +9449,13 @@ const struct flashchip flashchips[] = {
 		.write		= SPI_CHIP_WRITE256,
 		.read		= SPI_CHIP_READ, /* Fast read (0x0B) and multi I/O supported */
 		.voltage	= {2700, 3600},
+		.reg_bits	=
+		{
+			.srp    = {STATUS1, 7, RW},
+			.bp     = {{STATUS1, 2, RW}, {STATUS1, 3, RW}, {STATUS1, 4, RW},  {STATUS1, 5, RW}},
+		},
+
+		.decode_range	= DECODE_RANGE_SPI25,
 	},
 
 	{