[PATCH] mtd: spi-nor: issi: Add support for ISSI IS25LP512MG

Matthew Parker mparker at arista.com
Sat Nov 7 16:45:16 PST 2026


Add support for the ISSI IS25LP512MG 512Mbit (64 MiB) SPI NOR flash.

The device provides JESD216B SFDP tables which accurately describe
fast-read modes and erase geometry. Flash read, write, and erase
operations across the full 64 MiB array have been verified on hardware.

Cc: stable at vger.kernel.org # v6.1+
Co-developed-by: Adam Calabrigo <adamc at arista.com>
Signed-off-by: Adam Calabrigo <adamc at arista.com>
Signed-off-by: Matthew Parker <mparker at arista.com>
---
 drivers/mtd/spi-nor/issi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mtd/spi-nor/issi.c b/drivers/mtd/spi-nor/issi.c
index 2f057d731df2..977dc5ba8028 100644
--- a/drivers/mtd/spi-nor/issi.c
+++ b/drivers/mtd/spi-nor/issi.c
@@ -101,6 +101,12 @@ static const struct flash_info issi_nor_parts[] = {
 	}, {
 		.id = SNOR_ID(0x9d, 0x60, 0x19),
 		.name = "is25lp256",
+	}, {
+		.id = SNOR_ID(0x9d, 0x60, 0x20),
+		.name = "is25lp512mg",
+		.size = SZ_64M,
+		.flags = SPI_NOR_QUAD_PP,
+		.parse_sfdp = true,
 	}, {
 		.id = SNOR_ID(0x9d, 0x70, 0x16),
 		.name = "is25wp032",
-- 
2.51.0




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