1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* 2 /*
3 * JZ4780 NAND/external memory controller (NEM 3 * JZ4780 NAND/external memory controller (NEMC)
4 * 4 *
5 * Copyright (c) 2015 Imagination Technologies 5 * Copyright (c) 2015 Imagination Technologies
6 * Author: Alex Smith <alex@alex-smith.me.uk> 6 * Author: Alex Smith <alex@alex-smith.me.uk>
7 */ 7 */
8 8
9 #ifndef __LINUX_JZ4780_NEMC_H__ 9 #ifndef __LINUX_JZ4780_NEMC_H__
10 #define __LINUX_JZ4780_NEMC_H__ 10 #define __LINUX_JZ4780_NEMC_H__
11 11
12 #include <linux/types.h> 12 #include <linux/types.h>
13 13
14 struct device; 14 struct device;
15 15
16 /* 16 /*
17 * Number of NEMC banks. Note that there are a 17 * Number of NEMC banks. Note that there are actually 6, but they are numbered
18 * from 1. 18 * from 1.
19 */ 19 */
20 #define JZ4780_NEMC_NUM_BANKS 7 20 #define JZ4780_NEMC_NUM_BANKS 7
21 21
22 /** 22 /**
23 * enum jz4780_nemc_bank_type - device types w 23 * enum jz4780_nemc_bank_type - device types which can be connected to a bank
24 * @JZ4780_NEMC_BANK_SRAM: SRAM 24 * @JZ4780_NEMC_BANK_SRAM: SRAM
25 * @JZ4780_NEMC_BANK_NAND: NAND 25 * @JZ4780_NEMC_BANK_NAND: NAND
26 */ 26 */
27 enum jz4780_nemc_bank_type { 27 enum jz4780_nemc_bank_type {
28 JZ4780_NEMC_BANK_SRAM, 28 JZ4780_NEMC_BANK_SRAM,
29 JZ4780_NEMC_BANK_NAND, 29 JZ4780_NEMC_BANK_NAND,
30 }; 30 };
31 31
32 extern unsigned int jz4780_nemc_num_banks(stru 32 extern unsigned int jz4780_nemc_num_banks(struct device *dev);
33 33
34 extern void jz4780_nemc_set_type(struct device 34 extern void jz4780_nemc_set_type(struct device *dev, unsigned int bank,
35 enum jz4780_n 35 enum jz4780_nemc_bank_type type);
36 extern void jz4780_nemc_assert(struct device * 36 extern void jz4780_nemc_assert(struct device *dev, unsigned int bank,
37 bool assert); 37 bool assert);
38 38
39 #endif /* __LINUX_JZ4780_NEMC_H__ */ 39 #endif /* __LINUX_JZ4780_NEMC_H__ */
40 40
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