| Thomas Gleixner | 2874c5f | 2019-05-27 08:55:01 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| Alex Smith | 911a888 | 2015-03-09 14:29:04 +0000 | [diff] [blame] | 2 | /* |
| 3 | * JZ4780 NAND/external memory controller (NEMC) |
| 4 | * |
| 5 | * Copyright (c) 2015 Imagination Technologies |
| 6 | * Author: Alex Smith <alex@alex-smith.me.uk> |
| Alex Smith | 911a888 | 2015-03-09 14:29:04 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #ifndef __LINUX_JZ4780_NEMC_H__ |
| 10 | #define __LINUX_JZ4780_NEMC_H__ |
| 11 | |
| 12 | #include <linux/types.h> |
| 13 | |
| 14 | struct 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 | */ |
| 27 | enum jz4780_nemc_bank_type { |
| 28 | JZ4780_NEMC_BANK_SRAM, |
| 29 | JZ4780_NEMC_BANK_NAND, |
| 30 | }; |
| 31 | |
| 32 | extern unsigned int jz4780_nemc_num_banks(struct device *dev); |
| 33 | |
| 34 | extern void jz4780_nemc_set_type(struct device *dev, unsigned int bank, |
| 35 | enum jz4780_nemc_bank_type type); |
| 36 | extern void jz4780_nemc_assert(struct device *dev, unsigned int bank, |
| 37 | bool assert); |
| 38 | |
| 39 | #endif /* __LINUX_JZ4780_NEMC_H__ */ |