1/*
 2 * OpenFirmware helpers for memory drivers
 3 *
 4 * Copyright (C) 2012 Texas Instruments, Inc.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License as published by
 8 * the Free Software Foundation; either version 2 of the License, or
 9 * (at your option) any later version.
10 */
11
12#ifndef __LINUX_MEMORY_OF_REG_H
13#define __LINUX_MEMORY_OF_REG_H
14
15#if defined(CONFIG_OF) && defined(CONFIG_DDR)
16extern const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np,
17		struct device *dev);
18extern const struct lpddr2_timings
19	*of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,
20	u32 device_type, u32 *nr_frequencies);
21#else
22static inline const struct lpddr2_min_tck
23	*of_get_min_tck(struct device_node *np, struct device *dev)
24{
25	return NULL;
26}
27
28static inline const struct lpddr2_timings
29	*of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,
30	u32 device_type, u32 *nr_frequencies)
31{
32	return NULL;
33}
34#endif /* CONFIG_OF && CONFIG_DDR */
35
36#endif /* __LINUX_MEMORY_OF_REG_ */

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