diff --git a/flashchips.c b/flashchips.c
index a9fd1bfd2..c333fd162 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -17968,6 +17968,49 @@ const struct flashchip flashchips[] = {
 		.voltage	= {2700, 3600},
 	},
 
+	{
+	.vendor         = "Winbond",
+	.name           = "W25Q512NW-IM",
+	.bustype        = BUS_SPI,
+	.manufacture_id = WINBOND_NEX_ID,
+	.model_id       = WINBOND_NEX_W25Q512NW_IM,
+	.total_size     = 64 * 1024,
+	.page_size      = 256,
+	.feature_bits   = FEATURE_WRSR_WREN | FEATURE_OTP | FEATURE_4BA,
+	.tested         = TEST_OK_PREW,
+	.probe          = probe_spi_rdid,
+	.probe_timing   = TIMING_ZERO,
+	.block_erasers  =
+	{
+		{
+			.eraseblocks = { {4 * 1024, 16384} },
+			.block_erase = spi_block_erase_21,
+		}, {
+			.eraseblocks = { {4 * 1024, 16384} },
+			.block_erase = spi_block_erase_20,
+		}, {
+			.eraseblocks = { {32 * 1024, 2048} },
+			.block_erase = spi_block_erase_52,
+		}, {
+			.eraseblocks = { {64 * 1024, 1024} },
+			.block_erase = spi_block_erase_dc,
+		}, {
+			.eraseblocks = { {64 * 1024, 1024} },
+			.block_erase = spi_block_erase_d8,
+		}, {
+			.eraseblocks = { {64 * 1024 * 1024, 1} },
+			.block_erase = spi_block_erase_60,
+		}, {
+			.eraseblocks = { {64 * 1024 * 1024, 1} },
+			.block_erase = spi_block_erase_c7,
+		}
+	},
+	.unlock         = spi_disable_blockprotect,
+	.write          = spi_chip_write_256,
+	.read           = spi_chip_read,
+	.voltage        = {1650, 1950},
+	},
+
 	{
 		.vendor		= "Winbond",
 		.name		= "W25Q64BV/W25Q64CV/W25Q64FV",
diff --git a/include/flashchips.h b/include/flashchips.h
index ba9771997..999139e2c 100644
--- a/include/flashchips.h
+++ b/include/flashchips.h
@@ -983,6 +983,7 @@
 #define WINBOND_NEX_W25Q64JW_M	0x8017  /* W25Q64JW...M */
 #define WINBOND_NEX_W25Q128_DTR	0x8018	/* W25Q128JW_DTR */
 #define WINBOND_NEX_W25Q256_DTR	0x8019	/* W25Q256JW_DTR aka W25Q256256JW-IM */
+#define WINBOND_NEX_W25Q512NW_IM	0x8020 /* W25Q512NW-IM */
 
 #define WINBOND_ID		0xDA	/* Winbond */
 #define WINBOND_W19B160BB	0x49