target/linux/sunxi/patches-4.1/128-2-mtd-nand-support-non-ONFI-timings.patch

   1 diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
   2 index f561c68..8e636df 100644
   3 --- a/drivers/mtd/nand/nand_base.c
   4 +++ b/drivers/mtd/nand/nand_base.c
   5 @@ -3624,8 +3624,13 @@ static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
   6                 chip->ecc_strength_ds = NAND_ECC_STRENGTH(type);
   7                 chip->ecc_step_ds = NAND_ECC_STEP(type);
   8
   9 -               mode = type->onfi_timing_mode_default;
  10 -               chip->sdr_timings = onfi_async_timing_mode_to_sdr_timings(mode);
  11 +               if (type->custom_sdr_timing) {
  12 +                       chip->sdr_timings = type->custom_sdr_timing;
  13 +               } else {
  14 +                       mode = type->onfi_timing_mode_default;
  15 +                       chip->sdr_timings =
  16 +                               onfi_async_timing_mode_to_sdr_timings(mode);
  17 +               }
  18
  19                 *busw = type->options & NAND_BUSWIDTH_16;
  20
  21 diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
  22 index 2eb92a3..7d9e599 100644
  23 --- a/include/linux/mtd/nand.h
  24 +++ b/include/linux/mtd/nand.h
  25 @@ -863,6 +863,7 @@ struct nand_flash_dev {
  26                 uint16_t step_ds;
  27         } ecc;
  28         int onfi_timing_mode_default;
  29 +       const struct nand_sdr_timings *custom_sdr_timing;
  30  };
  31
  32  /**