target/linux/mediatek/patches-4.14/0167-mtd-nand-mtk-Support-MT7622-NAND-flash-controller.patch

   1 From f395a149fbbc190afbadbdcf9ce95f85f78da22f Mon Sep 17 00:00:00 2001
   2 From: RogerCC Lin <rogercc.lin@mediatek.com>
   3 Date: Thu, 30 Nov 2017 22:10:45 +0800
   4 Subject: [PATCH 167/224] mtd: nand: mtk: Support MT7622 NAND flash controller.
   5
   6 Add tables to support MT7622 NAND flash controller.
   7
   8 Signed-off-by: RogerCC Lin <rogercc.lin@mediatek.com>
   9 Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
  10 ---
  11  drivers/mtd/nand/mtk_ecc.c  | 26 ++++++++++++++++++++++++++
  12  drivers/mtd/nand/mtk_nand.c | 16 ++++++++++++++++
  13  2 files changed, 42 insertions(+)
  14
  15 --- a/drivers/mtd/nand/mtk_ecc.c
  16 +++ b/drivers/mtd/nand/mtk_ecc.c
  17 @@ -83,6 +83,10 @@ static const u8 ecc_strength_mt2712[] =
  18         40, 44, 48, 52, 56, 60, 68, 72, 80
  19  };
  20
  21 +static const u8 ecc_strength_mt7622[] = {
  22 +       4, 6, 8, 10, 12, 14, 16
  23 +};
  24 +
  25  enum mtk_ecc_regs {
  26         ECC_ENCPAR00,
  27         ECC_ENCIRQ_EN,
  28 @@ -110,6 +114,15 @@ static int mt2712_ecc_regs[] = {
  29         [ECC_DECIRQ_STA] =      0x204,
  30  };
  31
  32 +static int mt7622_ecc_regs[] = {
  33 +       [ECC_ENCPAR00] =        0x10,
  34 +       [ECC_ENCIRQ_EN] =       0x30,
  35 +       [ECC_ENCIRQ_STA] =      0x34,
  36 +       [ECC_DECDONE] =         0x11c,
  37 +       [ECC_DECIRQ_EN] =       0x140,
  38 +       [ECC_DECIRQ_STA] =      0x144,
  39 +};
  40 +
  41  static inline void mtk_ecc_wait_idle(struct mtk_ecc *ecc,
  42                                      enum mtk_ecc_operation op)
  43  {
  44 @@ -458,6 +471,16 @@ static const struct mtk_ecc_caps mtk_ecc
  45         .pg_irq_sel = 1,
  46  };
  47
  48 +static const struct mtk_ecc_caps mtk_ecc_caps_mt7622 = {
  49 +       .err_mask = 0x3f,
  50 +       .ecc_strength = ecc_strength_mt7622,
  51 +       .ecc_regs = mt7622_ecc_regs,
  52 +       .num_ecc_strength = 7,
  53 +       .ecc_mode_shift = 4,
  54 +       .parity_bits = 13,
  55 +       .pg_irq_sel = 0,
  56 +};
  57 +
  58  static const struct of_device_id mtk_ecc_dt_match[] = {
  59         {
  60                 .compatible = "mediatek,mt2701-ecc",
  61 @@ -465,6 +488,9 @@ static const struct of_device_id mtk_ecc
  62         }, {
  63                 .compatible = "mediatek,mt2712-ecc",
  64                 .data = &mtk_ecc_caps_mt2712,
  65 +       }, {
  66 +               .compatible = "mediatek,mt7622-ecc",
  67 +               .data = &mtk_ecc_caps_mt7622,
  68         },
  69         {},
  70  };
  71 --- a/drivers/mtd/nand/mtk_nand.c
  72 +++ b/drivers/mtd/nand/mtk_nand.c
  73 @@ -174,6 +174,10 @@ static const u8 spare_size_mt2712[] = {
  74         74
  75  };
  76
  77 +static const u8 spare_size_mt7622[] = {
  78 +       16, 26, 27, 28
  79 +};
  80 +
  81  static inline struct mtk_nfc_nand_chip *to_mtk_nand(struct nand_chip *nand)
  82  {
  83         return container_of(nand, struct mtk_nfc_nand_chip, nand);
  84 @@ -1409,6 +1413,15 @@ static const struct mtk_nfc_caps mtk_nfc
  85         .max_sector_size = 1024,
  86  };
  87
  88 +static const struct mtk_nfc_caps mtk_nfc_caps_mt7622 = {
  89 +       .spare_size = spare_size_mt7622,
  90 +       .num_spare_size = 4,
  91 +       .pageformat_spare_shift = 4,
  92 +       .nfi_clk_div = 1,
  93 +       .max_sector = 8,
  94 +       .max_sector_size = 512,
  95 +};
  96 +
  97  static const struct of_device_id mtk_nfc_id_table[] = {
  98         {
  99                 .compatible = "mediatek,mt2701-nfc",
 100 @@ -1416,6 +1429,9 @@ static const struct of_device_id mtk_nfc
 101         }, {
 102                 .compatible = "mediatek,mt2712-nfc",
 103                 .data = &mtk_nfc_caps_mt2712,
 104 +       }, {
 105 +               .compatible = "mediatek,mt7622-nfc",
 106 +               .data = &mtk_nfc_caps_mt7622,
 107         },
 108         {}
 109  };