[PATCH] mtd: spi-nor: Add support for Dosilicon DS25Q4CB/DS25Q4DN

[Ssunk <ssunkkan@gmail.com>]

Add support for DS25Q4CB and DS25Q4DN

Signed-off-by: Ssunk <ssunkkan@gmail.com>
---
 drivers/mtd/spi/Kconfig       | 5 +++++
 drivers/mtd/spi/spi-nor-ids.c | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/mtd/spi/Kconfig b/drivers/mtd/spi/Kconfig
index ca60a425ba3..f32a7b015cb 100644
--- a/drivers/mtd/spi/Kconfig
+++ b/drivers/mtd/spi/Kconfig
@@ -228,6 +228,11 @@ config SPI_FLASH_XMC
 	  Add support for various XMC (Wuhan Xinxin Semiconductor
 	  Manufacturing Corp.) SPI flash chips (XM25xxx)
 
+config SPI_FLASH_DOSILICON
+	bool "Dosilocon SPI flash support"
+	help
+	  Add support for various Dosilocon SPI flash chips (DS25xxx)
+
 config SPI_FLASH_XTX
 	bool "XTX SPI flash support"
 	help
diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
index 0383175beb5..c6348d60f89 100644
--- a/drivers/mtd/spi/spi-nor-ids.c
+++ b/drivers/mtd/spi/spi-nor-ids.c
@@ -648,6 +648,13 @@ const struct flash_info spi_nor_ids[] = {
 	/* Zbit Semiconductor Inc. */
 	{ INFO("zb25vq128", 0x5e4018, 0, 64 * 1024, 256,
 	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+#endif
+#ifdef CONFIG_SPI_FLASH_DOSILICON
+	/* Dosilicon Co., Ltd*/
+	{ INFO("DS25Q4CB", 0xe5301a, 0, 64 * 1024, 1024, SECT_4K | SPI_NOR_DUAL_READ |
+	       SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+	{ INFO("DS25Q4DN", 0xe5301b, 0, 64 * 1024, 2048, SECT_4K | SPI_NOR_DUAL_READ |
+           SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
 #endif
 	{ },
 };
-- 
2.34.1