mtd: spi-nor: Add support for zBIT ZB25VQ128

Add support for the zBIT ZB25VQ128 (128M-bit) SPI NOR flash memory chip,
as used on the Xunlong Orange Pi Zero 3 board.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
diff --git a/drivers/mtd/spi/Kconfig b/drivers/mtd/spi/Kconfig
index 732b076..abed392 100644
--- a/drivers/mtd/spi/Kconfig
+++ b/drivers/mtd/spi/Kconfig
@@ -224,6 +224,11 @@
 	  Add support for various XTX (XTX Technology Limited)
 	  SPI flash chips (XT25xxx).
 
+config SPI_FLASH_ZBIT
+	bool "ZBIT SPI flash support"
+	help
+	  Add support for Zbit Semiconductor Inc. SPI flash chips (ZB25xxx).
+
 endif
 
 config SPI_FLASH_USE_4K_SECTORS
diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
index 3cb132d..f86e7ff 100644
--- a/drivers/mtd/spi/spi-nor-ids.c
+++ b/drivers/mtd/spi/spi-nor-ids.c
@@ -572,5 +572,10 @@
 	{ INFO("xt25w01g", 0x0b651B, 0, 64 * 1024, 2048,
 	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
 #endif
+#ifdef CONFIG_SPI_FLASH_ZBIT
+	/* Zbit Semiconductor Inc. */
+	{ INFO("zb25vq128", 0x5e4018, 0, 64 * 1024, 256,
+	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+#endif
 	{ },
 };