projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 9345943b SA |
1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* | |
| 3 | * NXP GPMI NAND flash driver | |
| 4 | * | |
| 5 | * Copyright (C) 2018 Toradex | |
| 6 | * Authors: | |
| 7 | * Stefan Agner <[email protected]> | |
| 8 | */ | |
| 9 | ||
| 68748340 SA |
10 | #include <linux/mtd/mtd.h> |
| 11 | #include <asm/cache.h> | |
| 12 | #include <nand.h> | |
| 13 | #include <asm/mach-imx/dma.h> | |
| 14 | ||
| 15 | /** | |
| 16 | * @gf_len: The length of Galois Field. (e.g., 13 or 14) | |
| 17 | * @ecc_strength: A number that describes the strength of the ECC | |
| 18 | * algorithm. | |
| 19 | * @ecc_chunk_size: The size, in bytes, of a single ECC chunk. Note | |
| 20 | * the first chunk in the page includes both data and | |
| 21 | * metadata, so it's a bit larger than this value. | |
| 22 | * @ecc_chunk_count: The number of ECC chunks in the page, | |
| 23 | * @block_mark_byte_offset: The byte offset in the ECC-based page view at | |
| 24 | * which the underlying physical block mark appears. | |
| 25 | * @block_mark_bit_offset: The bit offset into the ECC-based page view at | |
| 26 | * which the underlying physical block mark appears. | |
| 27 | */ | |
| 28 | struct bch_geometry { | |
| 29 | unsigned int gf_len; | |
| 30 | unsigned int ecc_strength; | |
| 31 | unsigned int ecc_chunk_size; | |
| 32 | unsigned int ecc_chunk_count; | |
| 33 | unsigned int block_mark_byte_offset; | |
| 34 | unsigned int block_mark_bit_offset; | |
| 35 | }; | |
| 36 | ||
| 37 | struct mxs_nand_info { | |
| 38 | struct nand_chip chip; | |
| 39 | struct udevice *dev; | |
| 40 | unsigned int max_ecc_strength_supported; | |
| 41 | bool use_minimum_ecc; | |
| 42 | int cur_chip; | |
| 43 | ||
| 44 | uint32_t cmd_queue_len; | |
| 45 | uint32_t data_buf_size; | |
| 46 | struct bch_geometry bch_geometry; | |
| 47 | ||
| 48 | uint8_t *cmd_buf; | |
| 49 | uint8_t *data_buf; | |
| 50 | uint8_t *oob_buf; | |
| 51 | ||
| 52 | uint8_t marking_block_bad; | |
| 53 | uint8_t raw_oob_mode; | |
| 54 | ||
| 55 | struct mxs_gpmi_regs *gpmi_regs; | |
| 56 | struct mxs_bch_regs *bch_regs; | |
| 57 | ||
| 58 | /* Functions with altered behaviour */ | |
| 59 | int (*hooked_read_oob)(struct mtd_info *mtd, | |
| 60 | loff_t from, struct mtd_oob_ops *ops); | |
| 61 | int (*hooked_write_oob)(struct mtd_info *mtd, | |
| 62 | loff_t to, struct mtd_oob_ops *ops); | |
| 63 | int (*hooked_block_markbad)(struct mtd_info *mtd, | |
| 64 | loff_t ofs); | |
| 65 | ||
| 66 | /* DMA descriptors */ | |
| 67 | struct mxs_dma_desc **desc; | |
| 68 | uint32_t desc_index; | |
| 69 | }; | |
| 70 | ||
| 71 | int mxs_nand_init_ctrl(struct mxs_nand_info *nand_info); | |
| 9345943b | 72 | int mxs_nand_init_spl(struct nand_chip *nand); |
| 5346c31e | 73 | int mxs_nand_setup_ecc(struct mtd_info *mtd); |