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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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2 | /* |
3 | * OpenFirmware helpers for memory drivers | |
4 | * | |
5 | * Copyright (C) 2012 Texas Instruments, Inc. | |
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6 | */ |
7 | ||
8 | #ifndef __LINUX_MEMORY_OF_REG_H | |
9 | #define __LINUX_MEMORY_OF_REG_H | |
10 | ||
7c304d7e | 11 | #if defined(CONFIG_OF) && defined(CONFIG_DDR) |
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12 | extern const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np, |
13 | struct device *dev); | |
14 | extern const struct lpddr2_timings | |
15 | *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev, | |
16 | u32 device_type, u32 *nr_frequencies); | |
17 | #else | |
18 | static inline const struct lpddr2_min_tck | |
19 | *of_get_min_tck(struct device_node *np, struct device *dev) | |
20 | { | |
21 | return NULL; | |
22 | } | |
23 | ||
24 | static inline const struct lpddr2_timings | |
25 | *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev, | |
26 | u32 device_type, u32 *nr_frequencies) | |
27 | { | |
28 | return NULL; | |
29 | } | |
7c304d7e | 30 | #endif /* CONFIG_OF && CONFIG_DDR */ |
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31 | |
32 | #endif /* __LINUX_MEMORY_OF_REG_ */ |