diff options
Diffstat (limited to 'include/linux/platform_data/mtd-nand-s3c2410.h')
| -rw-r--r-- | include/linux/platform_data/mtd-nand-s3c2410.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/include/linux/platform_data/mtd-nand-s3c2410.h b/include/linux/platform_data/mtd-nand-s3c2410.h new file mode 100644 index 000000000..25390fc3e --- /dev/null +++ b/include/linux/platform_data/mtd-nand-s3c2410.h @@ -0,0 +1,70 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2004 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * S3C2410 - NAND device controller platform_device info +*/ + +#ifndef __MTD_NAND_S3C2410_H +#define __MTD_NAND_S3C2410_H + +#include <linux/mtd/rawnand.h> + +/** + * struct s3c2410_nand_set - define a set of one or more nand chips + * @flash_bbt: Openmoko u-boot can create a Bad Block Table + * Setting this flag will allow the kernel to + * look for it at boot time and also skip the NAND + * scan. + * @options: Default value to set into 'struct nand_chip' options. + * @nr_chips: Number of chips in this set + * @nr_partitions: Number of partitions pointed to by @partitions + * @name: Name of set (optional) + * @nr_map: Map for low-layer logical to physical chip numbers (option) + * @partitions: The mtd partition list + * + * define a set of one or more nand chips registered with an unique mtd. Also + * allows to pass flag to the underlying NAND layer. 'disable_ecc' will trigger + * a warning at boot time. + */ +struct s3c2410_nand_set { + unsigned int flash_bbt:1; + + unsigned int options; + int nr_chips; + int nr_partitions; + char *name; + int *nr_map; + struct mtd_partition *partitions; + struct device_node *of_node; +}; + +struct s3c2410_platform_nand { + /* timing information for controller, all times in nanoseconds */ + + int tacls; /* time for active CLE/ALE to nWE/nOE */ + int twrph0; /* active time for nWE/nOE */ + int twrph1; /* time for release CLE/ALE from nWE/nOE inactive */ + + unsigned int ignore_unset_ecc:1; + + enum nand_ecc_engine_type engine_type; + + int nr_sets; + struct s3c2410_nand_set *sets; + + void (*select_chip)(struct s3c2410_nand_set *, + int chip); +}; + +/** + * s3c_nand_set_platdata() - register NAND platform data. + * @nand: The NAND platform data to register with s3c_device_nand. + * + * This function copies the given NAND platform data, @nand and registers + * it with the s3c_device_nand. This allows @nand to be __initdata. +*/ +extern void s3c_nand_set_platdata(struct s3c2410_platform_nand *nand); + +#endif /*__MTD_NAND_S3C2410_H */ |