| 1 |
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| 2 | |
| 3 | * OpenFirmware helpers for memory drivers
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| 4 | *
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| 5 | * Copyright (C) 2012 Texas Instruments, Inc.
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| 6 | * Copyright (C) 2020 Krzysztof Kozlowski <[email protected]>
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| 7 |
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| 8 |
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| 9 | #ifndef __LINUX_MEMORY_OF_REG_H
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| 10 | #define __LINUX_MEMORY_OF_REG_H
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| 11 |
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| 12 | #if defined(CONFIG_OF) && defined(CONFIG_DDR)
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| 13 | const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np,
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| 14 | struct device *dev);
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| 15 | const struct lpddr2_timings *of_get_ddr_timings(struct device_node *np_ddr,
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| 16 | struct device *dev,
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| 17 | u32 device_type, u32 *nr_frequencies);
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| 18 | const struct lpddr3_min_tck *of_lpddr3_get_min_tck(struct device_node *np,
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| 19 | struct device *dev);
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| 20 | const struct lpddr3_timings *
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| 21 | of_lpddr3_get_ddr_timings(struct device_node *np_ddr,
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| 22 | struct device *dev, u32 device_type, u32 *nr_frequencies);
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| 23 |
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| 24 | const struct lpddr2_info *of_lpddr2_get_info(struct device_node *np,
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| 25 | struct device *dev);
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| 26 | #else
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| 27 | static inline const struct lpddr2_min_tck
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| 28 | *of_get_min_tck(struct device_node *np, struct device *dev)
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| 29 | {
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| 30 | return NULL;
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| 31 | }
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| 32 |
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| 33 | static inline const struct lpddr2_timings
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| 34 | *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,
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| 35 | u32 device_type, u32 *nr_frequencies)
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| 36 | {
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| 37 | return NULL;
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| 38 | }
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| 39 |
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| 40 | static inline const struct lpddr3_min_tck
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| 41 | *of_lpddr3_get_min_tck(struct device_node *np, struct device *dev)
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| 42 | {
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| 43 | return NULL;
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| 44 | }
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| 45 |
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| 46 | static inline const struct lpddr3_timings
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| 47 | *of_lpddr3_get_ddr_timings(struct device_node *np_ddr,
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| 48 | struct device *dev, u32 device_type, u32 *nr_frequencies)
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| 49 | {
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| 50 | return NULL;
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| 51 | }
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| 52 |
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| 53 | static inline const struct lpddr2_info
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| 54 | *of_lpddr2_get_info(struct device_node *np, struct device *dev)
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| 55 | {
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| 56 | return NULL;
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| 57 | }
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| 58 | #endif
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| 59 |
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| 60 | #endif
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