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