target/linux/ramips/patches-5.15/405-mtd-spi-nor-Add-support-for-BoHong-bh25q128as.patch

   1 From 52d14545d2fc276b1bf9ccf48d4612fab6edfb6a Mon Sep 17 00:00:00 2001
   2 From: David Bauer <mail@david-bauer.net>
   3 Date: Thu, 6 May 2021 17:49:55 +0200
   4 Subject: [PATCH] mtd: spi-nor: Add support for BoHong bh25q128as
   5
   6 Add MTD support for the BoHong bh25q128as SPI NOR chip.
   7 The chip has 16MB of total capacity, divided into a total of 256
   8 sectors, each 64KB sized. The chip also supports 4KB sectors.
   9 Additionally, it supports dual and quad read modes.
  10
  11 Functionality was verified on an Tenbay WR1800K / MTK MT7621 board.
  12
  13 Signed-off-by: David Bauer <mail@david-bauer.net>
  14 ---
  15  drivers/mtd/spi-nor/Makefile |  1 +
  16  drivers/mtd/spi-nor/bohong.c | 21 +++++++++++++++++++++
  17  drivers/mtd/spi-nor/core.c   |  1 +
  18  drivers/mtd/spi-nor/core.h   |  1 +
  19  4 files changed, 24 insertions(+)
  20  create mode 100644 drivers/mtd/spi-nor/bohong.c
  21
  22 --- a/drivers/mtd/spi-nor/Makefile
  23 +++ b/drivers/mtd/spi-nor/Makefile
  24 @@ -2,6 +2,7 @@
  25
  26  spi-nor-objs                   := core.o sfdp.o swp.o otp.o sysfs.o
  27  spi-nor-objs                   += atmel.o
  28 +spi-nor-objs                   += bohong.o
  29  spi-nor-objs                   += catalyst.o
  30  spi-nor-objs                   += eon.o
  31  spi-nor-objs                   += esmt.o
  32 --- /dev/null
  33 +++ b/drivers/mtd/spi-nor/bohong.c
  34 @@ -0,0 +1,21 @@
  35 +// SPDX-License-Identifier: GPL-2.0
  36 +/*
  37 + * Copyright (C) 2005, Intec Automation Inc.
  38 + * Copyright (C) 2014, Freescale Semiconductor, Inc.
  39 + */
  40 +
  41 +#include <linux/mtd/spi-nor.h>
  42 +
  43 +#include "core.h"
  44 +
  45 +static const struct flash_info bohong_parts[] = {
  46 +       /* BoHong Microelectronics */
  47 +       { "bh25q128as", INFO(0x684018, 0, 64 * 1024, 256,
  48 +                           SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
  49 +};
  50 +
  51 +const struct spi_nor_manufacturer spi_nor_bohong = {
  52 +       .name = "bohong",
  53 +       .parts = bohong_parts,
  54 +       .nparts = ARRAY_SIZE(bohong_parts),
  55 +};
  56 --- a/drivers/mtd/spi-nor/core.c
  57 +++ b/drivers/mtd/spi-nor/core.c
  58 @@ -1843,6 +1843,7 @@ int spi_nor_sr2_bit7_quad_enable(struct
  59
  60  static const struct spi_nor_manufacturer *manufacturers[] = {
  61         &spi_nor_atmel,
  62 +       &spi_nor_bohong,
  63         &spi_nor_catalyst,
  64         &spi_nor_eon,
  65         &spi_nor_esmt,
  66 --- a/drivers/mtd/spi-nor/core.h
  67 +++ b/drivers/mtd/spi-nor/core.h
  68 @@ -473,6 +473,7 @@ struct sfdp {
  69
  70  /* Manufacturer drivers. */
  71  extern const struct spi_nor_manufacturer spi_nor_atmel;
  72 +extern const struct spi_nor_manufacturer spi_nor_bohong;
  73  extern const struct spi_nor_manufacturer spi_nor_catalyst;
  74  extern const struct spi_nor_manufacturer spi_nor_eon;
  75  extern const struct spi_nor_manufacturer spi_nor_esmt;