projects / thirdparty / 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 <stefan.agner@toradex.com> | |
| 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. | |
| 616f03da YL |
19 | * @ecc_chunk0_size: The size, in bytes, of a first ECC chunk. |
| 20 | * @ecc_chunkn_size: The size, in bytes, of a single ECC chunk after | |
| 21 | * the first chunk in the page. | |
| 68748340 SA |
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. | |
| 616f03da YL |
27 | * @ecc_for_meta: The flag to indicate if there is a dedicate ecc |
| 28 | * for meta. | |
| 68748340 SA |
29 | */ |
| 30 | struct bch_geometry { | |
| 31 | unsigned int gf_len; | |
| 32 | unsigned int ecc_strength; | |
| 616f03da YL |
33 | unsigned int ecc_chunk0_size; |
| 34 | unsigned int ecc_chunkn_size; | |
| 68748340 SA |
35 | unsigned int ecc_chunk_count; |
| 36 | unsigned int block_mark_byte_offset; | |
| 37 | unsigned int block_mark_bit_offset; | |
| 616f03da | 38 | unsigned int ecc_for_meta; /* ECC for meta data */ |
| 68748340 SA |
39 | }; |
| 40 | ||
| 41 | struct mxs_nand_info { | |
| 42 | struct nand_chip chip; | |
| 43 | struct udevice *dev; | |
| 44 | unsigned int max_ecc_strength_supported; | |
| 45 | bool use_minimum_ecc; | |
| 51cdf83e YL |
46 | /* legacy bch geometry flag */ |
| 47 | bool legacy_bch_geometry; | |
| 68748340 SA |
48 | int cur_chip; |
| 49 | ||
| 50 | uint32_t cmd_queue_len; | |
| 51 | uint32_t data_buf_size; | |
| 52 | struct bch_geometry bch_geometry; | |
| 53 | ||
| 54 | uint8_t *cmd_buf; | |
| 55 | uint8_t *data_buf; | |
| 56 | uint8_t *oob_buf; | |
| 57 | ||
| 58 | uint8_t marking_block_bad; | |
| 59 | uint8_t raw_oob_mode; | |
| 60 | ||
| 61 | struct mxs_gpmi_regs *gpmi_regs; | |
| 62 | struct mxs_bch_regs *bch_regs; | |
| 63 | ||
| 64 | /* Functions with altered behaviour */ | |
| 65 | int (*hooked_read_oob)(struct mtd_info *mtd, | |
| 66 | loff_t from, struct mtd_oob_ops *ops); | |
| 67 | int (*hooked_write_oob)(struct mtd_info *mtd, | |
| 68 | loff_t to, struct mtd_oob_ops *ops); | |
| 69 | int (*hooked_block_markbad)(struct mtd_info *mtd, | |
| 70 | loff_t ofs); | |
| 71 | ||
| 72 | /* DMA descriptors */ | |
| 73 | struct mxs_dma_desc **desc; | |
| 74 | uint32_t desc_index; | |
| 9ab5f221 IO |
75 | |
| 76 | /* Hardware BCH interface and randomizer */ | |
| 77 | u32 en_randomizer; | |
| 78 | u32 writesize; | |
| 79 | u32 oobsize; | |
| 80 | u32 bch_flash0layout0; | |
| 81 | u32 bch_flash0layout1; | |
| 82 | }; | |
| 83 | ||
| 84 | struct mxs_nand_layout { | |
| 85 | u32 nblocks; | |
| 86 | u32 meta_size; | |
| 87 | u32 data0_size; | |
| 88 | u32 ecc0; | |
| 89 | u32 datan_size; | |
| 90 | u32 eccn; | |
| 17282f45 | 91 | u32 gf_len; |
| 68748340 SA |
92 | }; |
| 93 | ||
| 94 | int mxs_nand_init_ctrl(struct mxs_nand_info *nand_info); | |
| 9345943b | 95 | int mxs_nand_init_spl(struct nand_chip *nand); |
| 5346c31e | 96 | int mxs_nand_setup_ecc(struct mtd_info *mtd); |
| 9ab5f221 | 97 | |
| bf9382ad HX |
98 | void mxs_nand_mode_fcb_62bit(struct mtd_info *mtd); |
| 99 | void mxs_nand_mode_fcb_40bit(struct mtd_info *mtd); | |
| 9ab5f221 IO |
100 | void mxs_nand_mode_normal(struct mtd_info *mtd); |
| 101 | u32 mxs_nand_mark_byte_offset(struct mtd_info *mtd); | |
| 102 | u32 mxs_nand_mark_bit_offset(struct mtd_info *mtd); | |
| 103 | void mxs_nand_get_layout(struct mtd_info *mtd, struct mxs_nand_layout *l); |