diff options
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/nand.h')
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/nand.h | 67 | 
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/nand.h b/arch/arm/plat-samsung/include/plat/nand.h new file mode 100644 index 00000000000..b64115fa93a --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/nand.h @@ -0,0 +1,67 @@ +/* arch/arm/mach-s3c2410/include/mach/nand.h + * + * Copyright (c) 2004 Simtec Electronics + *	Ben Dooks <ben@simtec.co.uk> + * + * S3C2410 - NAND device controller platform_device info + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +/** + * struct s3c2410_nand_set - define a set of one or more nand chips + * @disable_ecc:	Entirely disable ECC - Dangerous + * @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		disable_ecc:1; +	unsigned int		flash_bbt:1; + +	unsigned int		options; +	int			nr_chips; +	int			nr_partitions; +	char			*name; +	int			*nr_map; +	struct mtd_partition	*partitions; +	struct nand_ecclayout	*ecc_layout; +}; + +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; + +	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);  |