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 @@ -17,7 +17,8 @@ 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  obj-$(CONFIG_MTD_SPI_NOR)      += controllers/
  43 --- /dev/null
  44 +++ b/drivers/mtd/spi-nor/xtx.c
  45 @@ -0,0 +1,17 @@
  46 +// SPDX-License-Identifier: GPL-2.0
  47 +#include <linux/mtd/spi-nor.h>
  48 +
  49 +#include "core.h"
  50 +
  51 +static const struct flash_info xtx_parts[] = {
  52 +       /* XTX Technology (Shenzhen) Limited */
  53 +       { "xt25f128b", INFO(0x0B4018, 0, 64 * 1024, 256)
  54 +               NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
  55 +                             SPI_NOR_QUAD_READ) },
  56 +};
  57 +
  58 +const struct spi_nor_manufacturer spi_nor_xtx = {
  59 +       .name = "xtx",
  60 +       .parts = xtx_parts,
  61 +       .nparts = ARRAY_SIZE(xtx_parts),
  62 +};
  63 --- a/drivers/mtd/spi-nor/core.c
  64 +++ b/drivers/mtd/spi-nor/core.c
  65 @@ -1859,6 +1859,7 @@ static const struct spi_nor_manufacturer
  66         &spi_nor_winbond,
  67         &spi_nor_xilinx,
  68         &spi_nor_xmc,
  69 +       &spi_nor_xtx,
  70  };
  71
  72  static const struct flash_info *
  73 --- a/drivers/mtd/spi-nor/core.h
  74 +++ b/drivers/mtd/spi-nor/core.h
  75 @@ -489,6 +489,7 @@ extern const struct spi_nor_manufacturer
  76  extern const struct spi_nor_manufacturer spi_nor_winbond;
  77  extern const struct spi_nor_manufacturer spi_nor_xilinx;
  78  extern const struct spi_nor_manufacturer spi_nor_xmc;
  79 +extern const struct spi_nor_manufacturer spi_nor_xtx;
  80
  81  extern const struct attribute_group *spi_nor_sysfs_groups[];
  82