[PATCH v2] mtd: spi-nor: issi: Add support for ISSI IS25LP512MG

[Matthew Parker]

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

The device provides JESD216B SFDP tables which accurately describe
geometry, erase types, and read-write opcodes. 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>
---
v2:
 - Drop .name, .size, and .parse_sfdp per modern SFDP discovery
   conventions.
 - Rely solely on JESD216B SFDP parsing with SPI_NOR_QUAD_PP.

 drivers/mtd/spi-nor/issi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/spi-nor/issi.c b/drivers/mtd/spi-nor/issi.c
index 2f057d731df2..d2b812050550 100644
--- a/drivers/mtd/spi-nor/issi.c
+++ b/drivers/mtd/spi-nor/issi.c
@@ -101,6 +101,9 @@ static const struct flash_info issi_nor_parts[] = {
 	}, {
 		.id = SNOR_ID(0x9d, 0x60, 0x19),
 		.name = "is25lp256",
+	}, {
+		.id = SNOR_ID(0x9d, 0x60, 0x20),
+		.flags = SPI_NOR_QUAD_PP,
 	}, {
 		.id = SNOR_ID(0x9d, 0x70, 0x16),
 		.name = "is25wp032",
-- 
2.51.0