| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * OpenFirmware helpers for memory drivers |
| * |
| * Copyright (C) 2012 Texas Instruments, Inc. |
| */ |
| |
| #ifndef __LINUX_MEMORY_OF_REG_H |
| #define __LINUX_MEMORY_OF_REG_H |
| |
| #if defined(CONFIG_OF) && defined(CONFIG_DDR) |
| extern const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np, |
| struct device *dev); |
| extern const struct lpddr2_timings |
| *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev, |
| u32 device_type, u32 *nr_frequencies); |
| #else |
| static inline const struct lpddr2_min_tck |
| *of_get_min_tck(struct device_node *np, struct device *dev) |
| { |
| return NULL; |
| } |
| |
| static inline const struct lpddr2_timings |
| *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev, |
| u32 device_type, u32 *nr_frequencies) |
| { |
| return NULL; |
| } |
| #endif /* CONFIG_OF && CONFIG_DDR */ |
| |
| #endif /* __LINUX_MEMORY_OF_REG_ */ |
