xref: /linux-6.15/include/linux/mtd/physmap.h (revision ba6e8564)
1 /*
2  * For boards with physically mapped flash and using
3  * drivers/mtd/maps/physmap.c mapping driver.
4  *
5  * $Id: physmap.h,v 1.4 2005/11/07 11:14:55 gleixner Exp $
6  *
7  * Copyright (C) 2003 MontaVista Software Inc.
8  * Author: Jun Sun, [email protected] or [email protected]
9  *
10  * This program is free software; you can redistribute  it and/or modify it
11  * under  the terms of  the GNU General  Public License as published by the
12  * Free Software Foundation;  either version 2 of the  License, or (at your
13  * option) any later version.
14  *
15  */
16 
17 #ifndef __LINUX_MTD_PHYSMAP__
18 #define __LINUX_MTD_PHYSMAP__
19 
20 #include <linux/mtd/mtd.h>
21 #include <linux/mtd/partitions.h>
22 
23 struct map_info;
24 
25 struct physmap_flash_data {
26 	unsigned int		width;
27 	void			(*set_vpp)(struct map_info *, int);
28 	unsigned int		nr_parts;
29 	struct mtd_partition	*parts;
30 };
31 
32 /*
33  * Board needs to specify the exact mapping during their setup time.
34  */
35 void physmap_configure(unsigned long addr, unsigned long size,
36 		int bankwidth, void (*set_vpp)(struct map_info *, int) );
37 
38 #ifdef CONFIG_MTD_PARTITIONS
39 
40 /*
41  * Machines that wish to do flash partition may want to call this function in
42  * their setup routine.
43  *
44  *	physmap_set_partitions(mypartitions, num_parts);
45  *
46  * Note that one can always override this hard-coded partition with
47  * command line partition (you need to enable CONFIG_MTD_CMDLINE_PARTS).
48  */
49 void physmap_set_partitions(struct mtd_partition *parts, int num_parts);
50 
51 #endif /* defined(CONFIG_MTD_PARTITIONS) */
52 
53 #endif /* __LINUX_MTD_PHYSMAP__ */
54