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f18dbbb1 SH |
1 | /* |
2 | * Copyright © 2010 ST Microelectronics | |
3 | * Shiraz Hashim <shiraz.hashim@st.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> | |
6551ab5d SR |
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 | |
f18dbbb1 SH |
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 | ||
42 | struct 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 | */ | |
58 | struct spear_smi_plat_data { | |
59 | unsigned long clk_rate; | |
60 | int num_flashes; | |
61 | struct spear_smi_flash_info *board_flash_info; | |
6551ab5d | 62 | struct device_node *np[MAX_NUM_FLASH_CHIP]; |
f18dbbb1 SH |
63 | }; |
64 | ||
65 | #endif /* __MTD_SPEAR_SMI_H */ |