git.openwrt.org Git - openwrt/staging/blogic.git/blob

   1 From a4f9dd55c5e1bb951db6f1dee20e62e0103f3438 Mon Sep 17 00:00:00 2001
   2 From: Chuanhong Guo <gch981213@gmail.com>
   3 Date: Sun, 20 Mar 2022 17:59:57 +0800
   4 Subject: [PATCH 1/5] mtd: spinand: gigadevice: fix Quad IO for GD5F1GQ5UExxG
   5
   6 Read From Cache Quad IO (EBH) uses 2 dummy bytes on this chip according
   7 to page 23 of the datasheet[0].
   8
   9 [0]: https://www.gigadevice.com/datasheet/gd5f1gq5xexxg/
  10
  11 Fixes: 469b99248985 ("mtd: spinand: gigadevice: Support GD5F1GQ5UExxG")
  12 Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
  13 Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
  14 Link: https://lore.kernel.org/linux-mtd/20220320100001.247905-2-gch981213@gmail.com
  15 ---
  16  drivers/mtd/nand/spi/gigadevice.c | 10 +++++++++-
  17  1 file changed, 9 insertions(+), 1 deletion(-)
  18
  19 --- a/drivers/mtd/nand/spi/gigadevice.c
  20 +++ b/drivers/mtd/nand/spi/gigadevice.c
  21 @@ -39,6 +39,14 @@ static SPINAND_OP_VARIANTS(read_cache_va
  22                 SPINAND_PAGE_READ_FROM_CACHE_OP_3A(true, 0, 1, NULL, 0),
  23                 SPINAND_PAGE_READ_FROM_CACHE_OP_3A(false, 0, 0, NULL, 0));
  24
  25 +static SPINAND_OP_VARIANTS(read_cache_variants_1gq5,
  26 +               SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
  27 +               SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
  28 +               SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
  29 +               SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
  30 +               SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
  31 +               SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
  32 +
  33  static SPINAND_OP_VARIANTS(write_cache_variants,
  34                 SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
  35                 SPINAND_PROG_LOAD(true, 0, NULL, 0));
  36 @@ -339,7 +347,7 @@ static const struct spinand_info gigadev
  37                      SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x51),
  38                      NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
  39                      NAND_ECCREQ(4, 512),
  40 -                    SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
  41 +                    SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5,
  42                                               &write_cache_variants,
  43                                               &update_cache_variants),
  44                      SPINAND_HAS_QE_BIT,