kernel: add support for Boya BY25Q128AS SPI flash

This is a 16 MiB SPI NOR flash found in the Creality WB-01.

Signed-off-by: George Brooke <figgyc@figgyc.uk>

target/linux/generic/pending-5.10/484-mtd-spi-nor-add-support-for-Boyamicro-by25q128as.patch

@@ -0,0 +1,86 @@
+From: George Brooke <figgyc@figgyc.uk>
+Date: Sun, 07 Feb 2021 12:30:34 +0000
+Subject: [PATCH] mtd: spi-nor: boya: add support for boya by25q128as
+
+Adds support for the Boya Microelectronics BY25Q128AS 128 Mbit flash.
+I tested this on the Creality WB-01 embedded device which uses this,
+although that was with OpenWrt which is still using 5.4 so I had to
+do a bit of porting work. Don't see how that would make much of a
+difference though.
+
+Signed-off-by: George Brooke <figgyc@figgyc.uk>
+---
+ drivers/mtd/spi-nor/Makefile |  1 +
+ drivers/mtd/spi-nor/boya.c   | 23 +++++++++++++++++++++++
+ drivers/mtd/spi-nor/core.c   |  1 +
+ drivers/mtd/spi-nor/core.h   |  1 +
+ 4 files changed, 26 insertions(+)
+ create mode 100644 drivers/mtd/spi-nor/boya.c
+
+diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile
+index 653923896205..7d1551fbfbaa 100644
+--- a/drivers/mtd/spi-nor/Makefile
++++ b/drivers/mtd/spi-nor/Makefile
+@@ -2,6 +2,7 @@
+
+ spi-nor-objs			:= core.o sfdp.o
+ spi-nor-objs			+= atmel.o
++spi-nor-objs			+= boya.o
+ spi-nor-objs			+= catalyst.o
+ spi-nor-objs			+= eon.o
+ spi-nor-objs			+= esmt.o
+diff --git a/drivers/mtd/spi-nor/boya.c b/drivers/mtd/spi-nor/boya.c
+new file mode 100644
+index 000000000000..014b0087048a
+--- /dev/null
++++ b/drivers/mtd/spi-nor/boya.c
+@@ -0,0 +1,23 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2005, Intec Automation Inc.
++ * Copyright (C) 2014, Freescale Semiconductor, Inc.
++ */
++
++#include <linux/mtd/spi-nor.h>
++
++#include "core.h"
++
++static const struct flash_info boya_parts[] = {
++	/* Boya */
++	{ "by25q128as", INFO(0x684018, 0, 64 * 1024, 256,
++			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
++			SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
++	},
++};
++
++const struct spi_nor_manufacturer spi_nor_boya = {
++	.name = "boya",
++	.parts = boya_parts,
++	.nparts = ARRAY_SIZE(boya_parts),
++};
+diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
+index 20df44b753da..4d0d003e9c3f 100644
+--- a/drivers/mtd/spi-nor/core.c
++++ b/drivers/mtd/spi-nor/core.c
+@@ -2160,6 +2160,7 @@ int spi_nor_sr2_bit7_quad_enable(struct spi_nor *nor)
+
+ static const struct spi_nor_manufacturer *manufacturers[] = {
+ 	&spi_nor_atmel,
++	&spi_nor_boya,
+ 	&spi_nor_catalyst,
+ 	&spi_nor_eon,
+ 	&spi_nor_esmt,
+diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
+index d631ee299de3..d5ed5217228b 100644
+--- a/drivers/mtd/spi-nor/core.h
++++ b/drivers/mtd/spi-nor/core.h
+@@ -409,6 +409,7 @@ struct spi_nor_manufacturer {
+
+ /* Manufacturer drivers. */
+ extern const struct spi_nor_manufacturer spi_nor_atmel;
++extern const struct spi_nor_manufacturer spi_nor_boya;
+ 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;
+-- 
+2.30.0

target/linux/generic/pending-5.4/483-mtd-spi-nor-add-support-for-Boyamicro-BY25Q128AS.patch

@@ -0,0 +1,26 @@
+From: George Brooke <figgyc@figgyc.uk>
+Subject: [PATCH] mtd: spi-nor: add support for Boya BY25Q128AS
+
+Adds support for Boya Microelectronics (BoyaMicro) BY25Q128AS 128 MiB flash.
+Tested on Creality WB-01 embedded device which uses this chip.
+
+Signed-off-by: George Brooke <figgyc@figgyc.uk>
+---
+ drivers/mtd/spi-nor/spi-nor.c | 4 ++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -2171,6 +2171,12 @@ static const struct flash_info spi_nor_i
+
+ 	{ "at45db081d", INFO(0x1f2500, 0, 64 * 1024, 16, SECT_4K) },
+
++	/* Boya */
++	{ "by25q128as", INFO(0x684018, 0, 64 * 1024, 256,
++			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
++			SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
++	},
++
+ 	/* EON -- en25xxx */
+ 	{ "en25f32",    INFO(0x1c3116, 0, 64 * 1024,   64, SECT_4K) },
+ 	{ "en25p32",    INFO(0x1c2016, 0, 64 * 1024,   64, 0) },