405-mtd-spi-nor-Add-support-for-BoHong-bh25q128as.patch

From 52d14545d2fc276b1bf9ccf48d4612fab6edfb6a Mon Sep 17 00:00:00 2001
From: David Bauer <mail@david-bauer.net>
Date: Thu, 6 May 2021 17:49:55 +0200
Subject: [PATCH] mtd: spi-nor: Add support for BoHong bh25q128as

Add MTD support for the BoHong bh25q128as SPI NOR chip.
The chip has 16MB of total capacity, divided into a total of 256
sectors, each 64KB sized. The chip also supports 4KB sectors.
Additionally, it supports dual and quad read modes.

Functionality was verified on an Tenbay WR1800K / MTK MT7621 board.

Signed-off-by: David Bauer <mail@david-bauer.net>
---
 drivers/mtd/spi-nor/Makefile |  1 +
 drivers/mtd/spi-nor/bohong.c | 21 +++++++++++++++++++++
 drivers/mtd/spi-nor/core.c   |  1 +
 drivers/mtd/spi-nor/core.h   |  1 +
 4 files changed, 24 insertions(+)
 create mode 100644 drivers/mtd/spi-nor/bohong.c

--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -2233,6 +2233,10 @@ static const struct flash_info spi_nor_i
 
 	{ "at45db081d", INFO(0x1f2500, 0, 64 * 1024, 16, SECT_4K) },
 
+	/* BoHong Microelectronics */
+	{ "bh25q128as", INFO(0x684018, 0, 64 * 1024, 256,
+			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+
 	/* EON -- en25xxx */
 	{ "en25f32",    INFO(0x1c3116, 0, 64 * 1024,   64, SECT_4K) },
 	{ "en25p32",    INFO(0x1c2016, 0, 64 * 1024,   64, 0) },