| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * Copyright (c) 2004 Simtec Electronics |
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| 4 | * Ben Dooks <ben@simtec.co.uk> |
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| 5 | * |
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| 6 | * S3C2410 - NAND device controller platform_device info |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef __MTD_NAND_S3C2410_H |
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| 10 | #define __MTD_NAND_S3C2410_H |
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| 11 | |
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| 12 | #include <linux/mtd/rawnand.h> |
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| 13 | |
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| 14 | /** |
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| 15 | * struct s3c2410_nand_set - define a set of one or more nand chips |
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| 16 | * @flash_bbt: Openmoko u-boot can create a Bad Block Table |
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| 17 | * Setting this flag will allow the kernel to |
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| 18 | * look for it at boot time and also skip the NAND |
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| 19 | * scan. |
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| 20 | * @options: Default value to set into 'struct nand_chip' options. |
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| 21 | * @nr_chips: Number of chips in this set |
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| 22 | * @nr_partitions: Number of partitions pointed to by @partitions |
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| 23 | * @name: Name of set (optional) |
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| 24 | * @nr_map: Map for low-layer logical to physical chip numbers (option) |
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| 25 | * @partitions: The mtd partition list |
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| 26 | * |
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| 27 | * define a set of one or more nand chips registered with an unique mtd. Also |
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| 28 | * allows to pass flag to the underlying NAND layer. 'disable_ecc' will trigger |
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| 29 | * a warning at boot time. |
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| 30 | */ |
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| 31 | struct s3c2410_nand_set { |
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| 32 | unsigned int flash_bbt:1; |
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| 33 | |
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| 34 | unsigned int options; |
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| 35 | int nr_chips; |
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| 36 | int nr_partitions; |
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| 37 | char *name; |
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| 38 | int *nr_map; |
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| 39 | struct mtd_partition *partitions; |
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| 40 | struct device_node *of_node; |
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| 41 | }; |
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| 42 | |
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| 43 | struct s3c2410_platform_nand { |
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| 44 | /* timing information for controller, all times in nanoseconds */ |
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| 45 | |
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| 46 | int tacls; /* time for active CLE/ALE to nWE/nOE */ |
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| 47 | int twrph0; /* active time for nWE/nOE */ |
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| 48 | int twrph1; /* time for release CLE/ALE from nWE/nOE inactive */ |
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| 49 | |
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| 50 | unsigned int ignore_unset_ecc:1; |
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| 51 | |
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| 52 | enum nand_ecc_engine_type engine_type; |
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| 53 | |
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| 54 | int nr_sets; |
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| 55 | struct s3c2410_nand_set *sets; |
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| 56 | |
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| 57 | void (*select_chip)(struct s3c2410_nand_set *, |
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| 58 | int chip); |
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| 59 | }; |
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| 60 | |
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| 61 | /** |
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| 62 | * s3c_nand_set_platdata() - register NAND platform data. |
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| 63 | * @nand: The NAND platform data to register with s3c_device_nand. |
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| 64 | * |
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| 65 | * This function copies the given NAND platform data, @nand and registers |
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| 66 | * it with the s3c_device_nand. This allows @nand to be __initdata. |
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| 67 | */ |
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| 68 | extern void s3c_nand_set_platdata(struct s3c2410_platform_nand *nand); |
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| 69 | |
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| 70 | #endif /*__MTD_NAND_S3C2410_H */ |
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| 71 | |
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