1/*
2 * Copyright �� 2010 ST Microelectronics
3 * Shiraz Hashim <shiraz.linux.kernel@gmail.com>
4 *
5 * This file is licensed under the terms of the GNU General Public
6 * License version 2. This program is licensed "as is" without any
7 * warranty of any kind, whether express or implied.
8 */
9
10#ifndef __MTD_SPEAR_SMI_H
11#define __MTD_SPEAR_SMI_H
12
13#include <linux/types.h>
14#include <linux/mtd/mtd.h>
15#include <linux/mtd/partitions.h>
16#include <linux/platform_device.h>
17#include <linux/of.h>
18
19/* max possible slots for serial-nor flash chip in the SMI controller */
20#define MAX_NUM_FLASH_CHIP	4
21
22/* macro to define partitions for flash devices */
23#define DEFINE_PARTS(n, of, s)		\
24{					\
25	.name = n,			\
26	.offset = of,			\
27	.size = s,			\
28}
29
30/**
31 * struct spear_smi_flash_info - platform structure for passing flash
32 * information
33 *
34 * name: name of the serial nor flash for identification
35 * mem_base: the memory base on which the flash is mapped
36 * size: size of the flash in bytes
37 * partitions: parition details
38 * nr_partitions: number of partitions
39 * fast_mode: whether flash supports fast mode
40 */
41
42struct spear_smi_flash_info {
43	char *name;
44	unsigned long mem_base;
45	unsigned long size;
46	struct mtd_partition *partitions;
47	int nr_partitions;
48	u8 fast_mode;
49};
50
51/**
52 * struct spear_smi_plat_data - platform structure for configuring smi
53 *
54 * clk_rate: clk rate at which SMI must operate
55 * num_flashes: number of flashes present on board
56 * board_flash_info: specific details of each flash present on board
57 */
58struct spear_smi_plat_data {
59	unsigned long clk_rate;
60	int num_flashes;
61	struct spear_smi_flash_info *board_flash_info;
62	struct device_node *np[MAX_NUM_FLASH_CHIP];
63};
64
65#endif /* __MTD_SPEAR_SMI_H */
66