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911a8882 AS |
1 | /* |
2 | * JZ4780 NAND/external memory controller (NEMC) | |
3 | * | |
4 | * Copyright (c) 2015 Imagination Technologies | |
5 | * Author: Alex Smith <alex@alex-smith.me.uk> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | */ | |
12 | ||
13 | #ifndef __LINUX_JZ4780_NEMC_H__ | |
14 | #define __LINUX_JZ4780_NEMC_H__ | |
15 | ||
16 | #include <linux/types.h> | |
17 | ||
18 | struct device; | |
19 | ||
20 | /* | |
21 | * Number of NEMC banks. Note that there are actually 6, but they are numbered | |
22 | * from 1. | |
23 | */ | |
24 | #define JZ4780_NEMC_NUM_BANKS 7 | |
25 | ||
26 | /** | |
27 | * enum jz4780_nemc_bank_type - device types which can be connected to a bank | |
28 | * @JZ4780_NEMC_BANK_SRAM: SRAM | |
29 | * @JZ4780_NEMC_BANK_NAND: NAND | |
30 | */ | |
31 | enum jz4780_nemc_bank_type { | |
32 | JZ4780_NEMC_BANK_SRAM, | |
33 | JZ4780_NEMC_BANK_NAND, | |
34 | }; | |
35 | ||
36 | extern unsigned int jz4780_nemc_num_banks(struct device *dev); | |
37 | ||
38 | extern void jz4780_nemc_set_type(struct device *dev, unsigned int bank, | |
39 | enum jz4780_nemc_bank_type type); | |
40 | extern void jz4780_nemc_assert(struct device *dev, unsigned int bank, | |
41 | bool assert); | |
42 | ||
43 | #endif /* __LINUX_JZ4780_NEMC_H__ */ |