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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2004 Simtec Electronics
* Ben Dooks <[email protected]>
*
* 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 */