Hasivo switches

Hardware Questions and Recommendations
41

I can confirm, that's the JEDECID.
I've put together a patch for it against 5.15.104 (and also the 64Mb version of the same)

diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile
index e347b435a038..ef4a4c792694 100644
--- a/drivers/mtd/spi-nor/Makefile
+++ b/drivers/mtd/spi-nor/Makefile
@@ -6,6 +6,7 @@ spi-nor-objs			+= catalyst.o
 spi-nor-objs			+= eon.o
 spi-nor-objs			+= esmt.o
 spi-nor-objs			+= everspin.o
+spi-nor-objs			+= fudan.o
 spi-nor-objs			+= fujitsu.o
 spi-nor-objs			+= gigadevice.o
 spi-nor-objs			+= intel.o
diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index 0a78045ca1d9..1ca748f31c65 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -1620,6 +1620,7 @@ static const struct spi_nor_manufacturer *manufacturers[] = {
 	&spi_nor_eon,
 	&spi_nor_esmt,
 	&spi_nor_everspin,
+	&spi_nor_fudan,
 	&spi_nor_fujitsu,
 	&spi_nor_gigadevice,
 	&spi_nor_intel,
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
index 25423225c29d..ab51ac388d5b 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -614,6 +614,7 @@ extern const struct spi_nor_manufacturer spi_nor_catalyst;
 extern const struct spi_nor_manufacturer spi_nor_eon;
 extern const struct spi_nor_manufacturer spi_nor_esmt;
 extern const struct spi_nor_manufacturer spi_nor_everspin;
+extern const struct spi_nor_manufacturer spi_nor_fudan;
 extern const struct spi_nor_manufacturer spi_nor_fujitsu;
 extern const struct spi_nor_manufacturer spi_nor_gigadevice;
 extern const struct spi_nor_manufacturer spi_nor_intel;
diff --git a/drivers/mtd/spi-nor/fudan.c b/drivers/mtd/spi-nor/fudan.c
new file mode 100644
index 000000000000..764fbadf1ba5
--- /dev/null
+++ b/drivers/mtd/spi-nor/fudan.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/mtd/spi-nor.h>
+
+#include "core.h"
+
+static const struct flash_info fudan_nor_parts[] = {
+	/* Fudan */
+	{ "fm25q64", INFO(0xa14017, 0, 64 * 1024, 128,
+					  SECT_4K | SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB |
+					  SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)},
+	{ "fm25q128", INFO(0xa14018, 0, 64 * 1024, 256,
+					  SECT_4K | SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB |
+					  SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)},
+};
+
+const struct spi_nor_manufacturer spi_nor_fudan = {
+	.name = "fudan",
+	.parts = fudan_nor_parts,
+	.nparts = ARRAY_SIZE(fudan_nor_parts),
+};
1 Like