target/linux/generic/pending-6.1/479-mtd-spi-nor-add-xtx-xt25f128b.patch

   1 From patchwork Thu Feb  6 17:19:41 2020
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   5 X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
   6 X-Patchwork-Id: 1234465
   7 Date: Thu, 6 Feb 2020 19:19:41 +0200
   8 From: Daniel Golle <daniel@makrotopia.org>
   9 To: linux-mtd@lists.infradead.org
  10 Subject: [PATCH v2] mtd: spi-nor: Add support for xt25f128b chip
  11 Message-ID: <20200206171941.GA2398@makrotopia.org>
  12 MIME-Version: 1.0
  13 Content-Disposition: inline
  14 List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-mtd>,
  15  <mailto:linux-mtd-request@lists.infradead.org?subject=subscribe>
  16 Cc: Eitan Cohen <eitan@neot-semadar.com>, Piotr Dymacz <pepe2k@gmail.com>,
  17  Tudor Ambarus <tudor.ambarus@microchip.com>
  18 Sender: "linux-mtd" <linux-mtd-bounces@lists.infradead.org>
  19 Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org
  20
  21 Add XT25F128B made by XTX Technology (Shenzhen) Limited.
  22 This chip supports dual and quad read and uniform 4K-byte erase.
  23 Verified on Teltonika RUT955 which comes with XT25F128B in recent
  24 versions of the device.
  25
  26 Signed-off-by: Daniel Golle <daniel@makrotopia.org>
  27 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  28 ---
  29  drivers/mtd/spi-nor/spi-nor.c | 4 ++++
  30  1 file changed, 4 insertions(+)
  31
  32 --- a/drivers/mtd/spi-nor/Makefile
  33 +++ b/drivers/mtd/spi-nor/Makefile
  34 @@ -17,6 +17,7 @@ spi-nor-objs                  += sst.o
  35  spi-nor-objs                   += winbond.o
  36  spi-nor-objs                   += xilinx.o
  37  spi-nor-objs                   += xmc.o
  38 +spi-nor-objs                   += xtx.o
  39  spi-nor-$(CONFIG_DEBUG_FS)     += debugfs.o
  40  obj-$(CONFIG_MTD_SPI_NOR)      += spi-nor.o
  41
  42 --- /dev/null
  43 +++ b/drivers/mtd/spi-nor/xtx.c
  44 @@ -0,0 +1,17 @@
  45 +// SPDX-License-Identifier: GPL-2.0
  46 +#include <linux/mtd/spi-nor.h>
  47 +
  48 +#include "core.h"
  49 +
  50 +static const struct flash_info xtx_parts[] = {
  51 +       /* XTX Technology (Shenzhen) Limited */
  52 +       { "xt25f128b", INFO(0x0B4018, 0, 64 * 1024, 256)
  53 +               NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
  54 +                             SPI_NOR_QUAD_READ) },
  55 +};
  56 +
  57 +const struct spi_nor_manufacturer spi_nor_xtx = {
  58 +       .name = "xtx",
  59 +       .parts = xtx_parts,
  60 +       .nparts = ARRAY_SIZE(xtx_parts),
  61 +};
  62 --- a/drivers/mtd/spi-nor/core.c
  63 +++ b/drivers/mtd/spi-nor/core.c
  64 @@ -1636,6 +1636,7 @@ static const struct spi_nor_manufacturer
  65         &spi_nor_winbond,
  66         &spi_nor_xilinx,
  67         &spi_nor_xmc,
  68 +       &spi_nor_xtx,
  69  };
  70
  71  static const struct flash_info *spi_nor_match_id(struct spi_nor *nor,
  72 --- a/drivers/mtd/spi-nor/core.h
  73 +++ b/drivers/mtd/spi-nor/core.h
  74 @@ -633,6 +633,7 @@ extern const struct spi_nor_manufacturer
  75  extern const struct spi_nor_manufacturer spi_nor_winbond;
  76  extern const struct spi_nor_manufacturer spi_nor_xilinx;
  77  extern const struct spi_nor_manufacturer spi_nor_xmc;
  78 +extern const struct spi_nor_manufacturer spi_nor_xtx;
  79
  80  extern const struct attribute_group *spi_nor_sysfs_groups[];
  81